OTP : set double authentication : create, send link, usable with Google Authenticator and FreeOTP

composer.json

@@ -0,0 +1,10 @@
+{
+    "require": {
+        "horstoeko/zugferd": "^1.0",
+        "zetacomponents/mail": "^1.10",
+        "num-num/ubl-invoice": "^1.21",
+        "php-curl-class/php-curl-class": "^12.0",
+        "chillerlan/php-authenticator": "^5.2",
+        "endroid/qr-code": "^6.0"
+    }
+}

include/database/otp_send_secret_sql.class.php

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+<?php
+
+/**
+ * Autogenerated file
+ *   This file is part of NOALYSS.
+ *
+ *   NOALYSS is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   NOALYSS is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with NOALYSS; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+require_once NOALYSS_INCLUDE . '/lib/data_sql.class.php';
+require_once NOALYSS_INCLUDE . '/class/database.class.php';
+
+/**
+ * @file
+ * @brief abstract of the table public.otp_send_secret
+ */
+
+/**
+ * @class Otp_Send_Secret_SQL
+ * @brief abstract of the table public.otp_send_secret
+ */
+class Otp_Send_Secret_SQL extends \Table_Data_SQL {
+
+    function __construct(Database $p_cn, $p_id = -1) {
+        $this->table = "public.otp_send_secret";
+        $this->primary_key = "os_id";
+        /*
+         * List of columns
+         */
+        $this->name = array(
+            "os_id" => "os_id"
+            , "use_email" => "use_email"
+            , "os_timestamp" => "os_timestamp"
+            , "os_request" => "os_request"
+        );
+
+        /*
+         * Type of columns
+         */
+        $this->type = array(
+            "os_id" => "numeric"
+            , "use_email" => "text"
+            , "os_timestamp" => "date"
+            , "os_request" => "text"
+        );
+
+        $this->default = array("os_id" => "auto");
+
+        $this->date_format = "DD.MM.YYYY HH24:MI:SS";
+        parent::__construct($p_cn, $p_id);
+    }
+}

include/lib/otp.class.php

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+<?php
+
+namespace Noalyss;
+
+/*
+ *   This file is part of NOALYSS.
+ *
+ *   NOALYSS is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   NOALYSS is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with NOALYSS; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+// Copyright Author Dany De Bontridder danydb@aevalys.eu 22/10/23
+
+
+/**
+ * @file
+ * @brief  class using OTP
+ * 
+ */
+
+/**
+ * @brief generate OTP 
+ */
+use chillerlan\Authenticator\{
+    Authenticator,
+    AuthenticatorOptions
+};
+use chillerlan\Authenticator\Authenticators\AuthenticatorInterface;
+
+class OTP {
+
+    /**
+     * @brief build a secret key and returns it
+     * @return string random string of 32 
+     */
+    function build_secret() {
+        $options = new AuthenticatorOptions;
+        $options->secret_length = 32;
+        $options->algorithm = AuthenticatorInterface::ALGO_SHA512;
+        $options->digits=6;
+        $authenticator = new Authenticator($options);
+        // create a secret (stored somewhere in a *safe* place on the server. safe... hahaha jk)
+        $secret = $authenticator->createSecret();
+        return $secret;
+        
+    }
+    /**
+     * @brief send an email with link to the user
+     * @param $user (\Noalyss_User )
+     */
+    function send_mail(\Noalyss_User $user) {
+        $mail=new \Sendmail();
+        $mail->set_from(ADMIN_WEB);
+        $mail->mailto($user->getEmail());
+        $mail->set_subject(_("NOALYSS : Double authentification lien pour freeOTP"));
+        $noalyss_url=NOALYSS_URL;
+        $uuid=guidv4();
+        $id=$user->getId();
+        /**
+         * save in DB first
+         */
+       $message="Bonjour,
+
+    Afin de pouvoir utiliser la double authentification avec freeOTP, pourriez-vous
+    suivre ce lien et scanner le QRCode avec votre application android freeOTP.
+               
+    Ce lien ne sera actif que 24 heures.
+   
+   
+   {$noalyss_url}/index.php?otp={$uuid}
+   
+   Merci d'utiliser NOALYSS
+   
+Cordialement,
+
+Noalyss team
+";
+        try {
+            $repository=new \Database();
+            $otp_send_secret_sql=new \Otp_Send_Secret_SQL($repository);
+            $otp_send_secret_sql->set('use_id',$id)
+                    ->set('os_request',$uuid);
+            $otp_send_secret_sql->save();
+            $mail->set_message($message);
+            $mail->compose();
+            $mail->send();
+            
+        } catch (Exception $ex) {
+
+        }
+    }
+    
+}

include/otp-link.php

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+<?php
+
+/*
+ *   This file is part of NOALYSS.
+ *
+ *   NOALYSS is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   NOALYSS is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with NOALYSS; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+// Copyright Author Dany De Bontridder danydb@aevalys.eu 22/10/23
+
+
+/**
+ * @file
+ * @brief generate a QRCode for setting up freeOTP
+ * 
+ * 
+ */
+if (!file_exists($dirname . '/config.inc.php')) {
+    die("system not installed");
+}
+
+require_once __DIR__ . '/constant.php';
+
+use Endroid\QrCode\Color\Color;
+use Endroid\QrCode\Encoding\Encoding;
+use Endroid\QrCode\ErrorCorrectionLevel;
+use Endroid\QrCode\QrCode;
+use Endroid\QrCode\Label\Label;
+use Endroid\QrCode\Logo\Logo;
+use Endroid\QrCode\RoundBlockSizeMode;
+use Endroid\QrCode\Writer\PngWriter;
+use Endroid\QrCode\Writer\ValidationException;
+use chillerlan\Authenticator\{
+    Authenticator,
+    AuthenticatorOptions
+};
+use chillerlan\Authenticator\Authenticators\AuthenticatorInterface;
+
+$http = new HttpInput();
+try {
+    $uuid = $http->get('otp');
+    $repository = new \Database(0);
+// remove old request  (> 24 hours)
+    $repository->exec_sql("delete from otp_send_secret where os_timestamp < now()-interval '24 hours'");
+
+// check if UUID exist
+    $id = $repository->get_value("select os_id from otp_send_secret where os_request=$1",
+            [$uuid]);
+// if UUID doesn't exist exit
+    if ($repository->count() == 0) {
+        return;
+    }
+
+// get email from id 
+    $otp_send = new Otp_Send_Secret_SQL($repository, $id);
+    $user = new Noalyss_User($repository, $otp_send->get('use_id'));
+    $secret = $user->get_otp_secret();
+
+    // OTP
+    $options = new AuthenticatorOptions;
+    $options->secret_length = 32;
+    $options->algorithm = AuthenticatorInterface::ALGO_SHA512;
+    $options->digits=6;
+    $authenticator = new Authenticator($options);
+    $authenticator->setSecret($secret);
+    $data= $authenticator->getUri(label:"noalyss:".$user->getEmail(),issuer:"noalyss.eu");
+// load secret for this id
+//echo "use with php -S localhost:5000 puis ouvrir index.html ";
+    $writer = new PngWriter();
+
+// Create QR code
+    $qrCode = new QrCode(
+            data: $data,
+            encoding: new Encoding('UTF-8'),
+            errorCorrectionLevel: ErrorCorrectionLevel::Medium,
+            size: 600,
+            margin: 10,
+            roundBlockSizeMode: RoundBlockSizeMode::Margin,
+            foregroundColor: new Color(0, 0, 0),
+            backgroundColor: new Color(255, 255, 255)
+    );
+
+    $result = $writer->write($qrCode);
+    echo '<div style="margin:4rem">';
+    // generate the QRCode
+    echo '<h1>',_("Scanner ceci avec freeOTP"),'</h1>';
+  
+    echo '<p>';
+    echo _("Scanner ce QRCode avec votre application OTP afin de l'ajouter");
+    
+    if ( DEBUGNOALYSS > 1) { echo "code attendu",$authenticator->code();}
+    echo '</p>';
+    
+    printf('<img src="data:image/png;base64,%s">', base64_encode($result->getString()));
+    
+    echo '</div>';
+} catch (Exception $exc) {
+    record_log($e);
+    return;
+}
+?>
+
+
+
+

vendor/autoload.php

@@ -0,0 +1,25 @@
+<?php
+
+// autoload.php @generated by Composer
+
+if (PHP_VERSION_ID < 50600) {
+    if (!headers_sent()) {
+        header('HTTP/1.1 500 Internal Server Error');
+    }
+    $err = 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    if (!ini_get('display_errors')) {
+        if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
+            fwrite(STDERR, $err);
+        } elseif (!headers_sent()) {
+            echo $err;
+        }
+    }
+    trigger_error(
+        $err,
+        E_USER_ERROR
+    );
+}
+
+require_once __DIR__ . '/composer/autoload_real.php';
+
+return ComposerAutoloaderInit1a0e4ea3fb1d108a445b9e95a7c251ad::getLoader();

vendor/bacon/bacon-qr-code/LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2017, Ben Scholzen 'DASPRiD'
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/bacon/bacon-qr-code/README.md

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+# QR Code generator
+
+[![PHP CI](https://github.com/Bacon/BaconQrCode/actions/workflows/ci.yml/badge.svg)](https://github.com/Bacon/BaconQrCode/actions/workflows/ci.yml)
+[![codecov](https://codecov.io/gh/Bacon/BaconQrCode/branch/master/graph/badge.svg?token=rD0HcAiEEx)](https://codecov.io/gh/Bacon/BaconQrCode)
+[![Latest Stable Version](https://poser.pugx.org/bacon/bacon-qr-code/v/stable)](https://packagist.org/packages/bacon/bacon-qr-code)
+[![Total Downloads](https://poser.pugx.org/bacon/bacon-qr-code/downloads)](https://packagist.org/packages/bacon/bacon-qr-code)
+[![License](https://poser.pugx.org/bacon/bacon-qr-code/license)](https://packagist.org/packages/bacon/bacon-qr-code)
+
+
+## Introduction
+BaconQrCode is a port of QR code portion of the ZXing library. It currently
+only features the encoder part, but could later receive the decoder part as
+well.
+
+As the Reed Solomon codec implementation of the ZXing library performs quite
+slow in PHP, it was exchanged with the implementation by Phil Karn.
+
+
+## Example usage
+```php
+use BaconQrCode\Renderer\ImageRenderer;
+use BaconQrCode\Renderer\Image\ImagickImageBackEnd;
+use BaconQrCode\Renderer\RendererStyle\RendererStyle;
+use BaconQrCode\Writer;
+
+$renderer = new ImageRenderer(
+    new RendererStyle(400),
+    new ImagickImageBackEnd()
+);
+$writer = new Writer($renderer);
+$writer->writeFile('Hello World!', 'qrcode.png');
+```
+
+## Available image renderer back ends
+BaconQrCode comes with multiple back ends for rendering images. Currently included are the following:
+
+- `ImagickImageBackEnd`: renders raster images using the Imagick library
+- `SvgImageBackEnd`: renders SVG files using XMLWriter
+- `EpsImageBackEnd`: renders EPS files
+
+### GDLib Renderer
+GD library has so many limitations, that GD support is not added as backend, but as separated renderer.
+Use `GDLibRenderer` instead of `ImageRenderer`. These are the limitations:
+
+- Does not support gradient.
+- Does not support any curves, so you QR code is always squared.
+
+Example usage:
+
+```php
+use BaconQrCode\Renderer\GDLibRenderer;
+use BaconQrCode\Writer;
+
+$renderer = new GDLibRenderer(400);
+$writer = new Writer($renderer);
+$writer->writeFile('Hello World!', 'qrcode.png');
+```

vendor/bacon/bacon-qr-code/composer.json

@@ -0,0 +1,50 @@
+{
+    "name": "bacon/bacon-qr-code",
+    "description": "BaconQrCode is a QR code generator for PHP.",
+    "license": "BSD-2-Clause",
+    "homepage": "https://github.com/Bacon/BaconQrCode",
+    "require": {
+        "php": "^8.1",
+        "ext-iconv": "*",
+        "dasprid/enum": "^1.0.3"
+    },
+    "suggest": {
+        "ext-imagick": "to generate QR code images"
+    },
+    "authors": [
+        {
+            "name": "Ben Scholzen 'DASPRiD'",
+            "email": "mail@dasprids.de",
+            "homepage": "https://dasprids.de/",
+            "role": "Developer"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "BaconQrCode\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "BaconQrCodeTest\\": "test/"
+        }
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^10.5.11 || 11.0.4",
+        "spatie/phpunit-snapshot-assertions": "^5.1.5",
+        "squizlabs/php_codesniffer": "^3.9",
+        "phly/keep-a-changelog": "^2.12"
+    },
+    "config": {
+        "allow-plugins": {
+            "ocramius/package-versions": true,
+            "php-http/discovery": true
+        }
+    },
+    "archive": {
+        "exclude": [
+            "/test",
+            "/phpunit.xml.dist"
+        ]
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/BitArray.php

@@ -0,0 +1,364 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+use BaconQrCode\Exception\InvalidArgumentException;
+use SplFixedArray;
+
+/**
+ * A simple, fast array of bits.
+ */
+final class BitArray
+{
+    /**
+     * Bits represented as an array of integers.
+     *
+     * @var SplFixedArray<int>
+     */
+    private SplFixedArray $bits;
+
+    /**
+     * Creates a new bit array with a given size.
+     */
+    public function __construct(private int $size = 0)
+    {
+        $this->bits = SplFixedArray::fromArray(array_fill(0, ($this->size + 31) >> 3, 0));
+    }
+
+    /**
+     * Gets the size in bits.
+     */
+    public function getSize() : int
+    {
+        return $this->size;
+    }
+
+    /**
+     * Gets the size in bytes.
+     */
+    public function getSizeInBytes() : int
+    {
+        return ($this->size + 7) >> 3;
+    }
+
+    /**
+     * Ensures that the array has a minimum capacity.
+     */
+    public function ensureCapacity(int $size) : void
+    {
+        if ($size > count($this->bits) << 5) {
+            $this->bits->setSize(($size + 31) >> 5);
+        }
+    }
+
+    /**
+     * Gets a specific bit.
+     */
+    public function get(int $i) : bool
+    {
+        return 0 !== ($this->bits[$i >> 5] & (1 << ($i & 0x1f)));
+    }
+
+    /**
+     * Sets a specific bit.
+     */
+    public function set(int $i) : void
+    {
+        $this->bits[$i >> 5] = $this->bits[$i >> 5] | 1 << ($i & 0x1f);
+    }
+
+    /**
+     * Flips a specific bit.
+     */
+    public function flip(int $i) : void
+    {
+        $this->bits[$i >> 5] ^= 1 << ($i & 0x1f);
+    }
+
+    /**
+     * Gets the next set bit position from a given position.
+     */
+    public function getNextSet(int $from) : int
+    {
+        if ($from >= $this->size) {
+            return $this->size;
+        }
+
+        $bitsOffset = $from >> 5;
+        $currentBits = $this->bits[$bitsOffset];
+        $bitsLength = count($this->bits);
+        $currentBits &= ~((1 << ($from & 0x1f)) - 1);
+
+        while (0 === $currentBits) {
+            if (++$bitsOffset === $bitsLength) {
+                return $this->size;
+            }
+
+            $currentBits = $this->bits[$bitsOffset];
+        }
+
+        $result = ($bitsOffset << 5) + BitUtils::numberOfTrailingZeros($currentBits);
+        return min($result, $this->size);
+    }
+
+    /**
+     * Gets the next unset bit position from a given position.
+     */
+    public function getNextUnset(int $from) : int
+    {
+        if ($from >= $this->size) {
+            return $this->size;
+        }
+
+        $bitsOffset = $from >> 5;
+        $currentBits = ~$this->bits[$bitsOffset];
+        $bitsLength = count($this->bits);
+        $currentBits &= ~((1 << ($from & 0x1f)) - 1);
+
+        while (0 === $currentBits) {
+            if (++$bitsOffset === $bitsLength) {
+                return $this->size;
+            }
+
+            $currentBits = ~$this->bits[$bitsOffset];
+        }
+
+        $result = ($bitsOffset << 5) + BitUtils::numberOfTrailingZeros($currentBits);
+        return min($result, $this->size);
+    }
+
+    /**
+     * Sets a bulk of bits.
+     */
+    public function setBulk(int $i, int $newBits) : void
+    {
+        $this->bits[$i >> 5] = $newBits;
+    }
+
+    /**
+     * Sets a range of bits.
+     *
+     * @throws InvalidArgumentException if end is smaller than start
+     */
+    public function setRange(int $start, int $end) : void
+    {
+        if ($end < $start) {
+            throw new InvalidArgumentException('End must be greater or equal to start');
+        }
+
+        if ($end === $start) {
+            return;
+        }
+
+        --$end;
+
+        $firstInt = $start >> 5;
+        $lastInt = $end >> 5;
+
+        for ($i = $firstInt; $i <= $lastInt; ++$i) {
+            $firstBit = $i > $firstInt ? 0 : $start & 0x1f;
+            $lastBit = $i < $lastInt ? 31 : $end & 0x1f;
+
+            if (0 === $firstBit && 31 === $lastBit) {
+                $mask = 0x7fffffff;
+            } else {
+                $mask = 0;
+
+                for ($j = $firstBit; $j < $lastBit; ++$j) {
+                    $mask |= 1 << $j;
+                }
+            }
+
+            $this->bits[$i] = $this->bits[$i] | $mask;
+        }
+    }
+
+    /**
+     * Clears the bit array, unsetting every bit.
+     */
+    public function clear() : void
+    {
+        $bitsLength = count($this->bits);
+
+        for ($i = 0; $i < $bitsLength; ++$i) {
+            $this->bits[$i] = 0;
+        }
+    }
+
+    /**
+     * Checks if a range of bits is set or not set.
+
+     * @throws InvalidArgumentException if end is smaller than start
+     */
+    public function isRange(int $start, int $end, bool $value) : bool
+    {
+        if ($end < $start) {
+            throw new InvalidArgumentException('End must be greater or equal to start');
+        }
+
+        if ($end === $start) {
+            return true;
+        }
+
+        --$end;
+
+        $firstInt = $start >> 5;
+        $lastInt = $end >> 5;
+
+        for ($i = $firstInt; $i <= $lastInt; ++$i) {
+            $firstBit = $i > $firstInt ? 0 : $start & 0x1f;
+            $lastBit = $i < $lastInt ? 31 : $end & 0x1f;
+
+            if (0 === $firstBit && 31 === $lastBit) {
+                $mask = 0x7fffffff;
+            } else {
+                $mask = 0;
+
+                for ($j = $firstBit; $j <= $lastBit; ++$j) {
+                    $mask |= 1 << $j;
+                }
+            }
+
+            if (($this->bits[$i] & $mask) !== ($value ? $mask : 0)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Appends a bit to the array.
+     */
+    public function appendBit(bool $bit) : void
+    {
+        $this->ensureCapacity($this->size + 1);
+
+        if ($bit) {
+            $this->bits[$this->size >> 5] = $this->bits[$this->size >> 5] | (1 << ($this->size & 0x1f));
+        }
+
+        ++$this->size;
+    }
+
+    /**
+     * Appends a number of bits (up to 32) to the array.
+
+     * @throws InvalidArgumentException if num bits is not between 0 and 32
+     */
+    public function appendBits(int $value, int $numBits) : void
+    {
+        if ($numBits < 0 || $numBits > 32) {
+            throw new InvalidArgumentException('Num bits must be between 0 and 32');
+        }
+
+        $this->ensureCapacity($this->size + $numBits);
+
+        for ($numBitsLeft = $numBits; $numBitsLeft > 0; $numBitsLeft--) {
+            $this->appendBit((($value >> ($numBitsLeft - 1)) & 0x01) === 1);
+        }
+    }
+
+    /**
+     * Appends another bit array to this array.
+     */
+    public function appendBitArray(self $other) : void
+    {
+        $otherSize = $other->getSize();
+        $this->ensureCapacity($this->size + $other->getSize());
+
+        for ($i = 0; $i < $otherSize; ++$i) {
+            $this->appendBit($other->get($i));
+        }
+    }
+
+    /**
+     * Makes an exclusive-or comparision on the current bit array.
+     *
+     * @throws InvalidArgumentException if sizes don't match
+     */
+    public function xorBits(self $other) : void
+    {
+        $bitsLength = count($this->bits);
+        $otherBits  = $other->getBitArray();
+
+        if ($bitsLength !== count($otherBits)) {
+            throw new InvalidArgumentException('Sizes don\'t match');
+        }
+
+        for ($i = 0; $i < $bitsLength; ++$i) {
+            $this->bits[$i] = $this->bits[$i] ^ $otherBits[$i];
+        }
+    }
+
+    /**
+     * Converts the bit array to a byte array.
+     *
+     * @return SplFixedArray<int>
+     */
+    public function toBytes(int $bitOffset, int $numBytes) : SplFixedArray
+    {
+        $bytes = new SplFixedArray($numBytes);
+
+        for ($i = 0; $i < $numBytes; ++$i) {
+            $byte = 0;
+
+            for ($j = 0; $j < 8; ++$j) {
+                if ($this->get($bitOffset)) {
+                    $byte |= 1 << (7 - $j);
+                }
+
+                ++$bitOffset;
+            }
+
+            $bytes[$i] = $byte;
+        }
+
+        return $bytes;
+    }
+
+    /**
+     * Gets the internal bit array.
+     *
+     * @return SplFixedArray<int>
+     */
+    public function getBitArray() : SplFixedArray
+    {
+        return $this->bits;
+    }
+
+    /**
+     * Reverses the array.
+     */
+    public function reverse() : void
+    {
+        $newBits = new SplFixedArray(count($this->bits));
+
+        for ($i = 0; $i < $this->size; ++$i) {
+            if ($this->get($this->size - $i - 1)) {
+                $newBits[$i >> 5] = $newBits[$i >> 5] | (1 << ($i & 0x1f));
+            }
+        }
+
+        $this->bits = $newBits;
+    }
+
+    /**
+     * Returns a string representation of the bit array.
+     */
+    public function __toString() : string
+    {
+        $result = '';
+
+        for ($i = 0; $i < $this->size; ++$i) {
+            if (0 === ($i & 0x07)) {
+                $result .= ' ';
+            }
+
+            $result .= $this->get($i) ? 'X' : '.';
+        }
+
+        return $result;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/BitMatrix.php

@@ -0,0 +1,307 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+use BaconQrCode\Exception\InvalidArgumentException;
+use SplFixedArray;
+
+/**
+ * Bit matrix.
+ *
+ * Represents a 2D matrix of bits. In function arguments below, and throughout
+ * the common module, x is the column position, and y is the row position. The
+ * ordering is always x, y. The origin is at the top-left.
+ */
+class BitMatrix
+{
+    /**
+     * Width of the bit matrix.
+     */
+    private int $width;
+
+    /**
+     * Height of the bit matrix.
+     */
+    private ?int $height;
+
+    /**
+     * Size in bits of each individual row.
+     */
+    private int $rowSize;
+
+    /**
+     * Bits representation.
+     *
+     * @var SplFixedArray<int>
+     */
+    private SplFixedArray $bits;
+
+    /**
+     * @throws InvalidArgumentException if a dimension is smaller than zero
+     */
+    public function __construct(int $width, ?int $height = null)
+    {
+        if (null === $height) {
+            $height = $width;
+        }
+
+        if ($width < 1 || $height < 1) {
+            throw new InvalidArgumentException('Both dimensions must be greater than zero');
+        }
+
+        $this->width = $width;
+        $this->height = $height;
+        $this->rowSize = ($width + 31) >> 5;
+        $this->bits = SplFixedArray::fromArray(array_fill(0, $this->rowSize * $height, 0));
+    }
+
+    /**
+     * Gets the requested bit, where true means black.
+     */
+    public function get(int $x, int $y) : bool
+    {
+        $offset = $y * $this->rowSize + ($x >> 5);
+        return 0 !== (BitUtils::unsignedRightShift($this->bits[$offset], ($x & 0x1f)) & 1);
+    }
+
+    /**
+     * Sets the given bit to true.
+     */
+    public function set(int $x, int $y) : void
+    {
+        $offset = $y * $this->rowSize + ($x >> 5);
+        $this->bits[$offset] = $this->bits[$offset] | (1 << ($x & 0x1f));
+    }
+
+    /**
+     * Flips the given bit.
+     */
+    public function flip(int $x, int $y) : void
+    {
+        $offset = $y * $this->rowSize + ($x >> 5);
+        $this->bits[$offset] = $this->bits[$offset] ^ (1 << ($x & 0x1f));
+    }
+
+    /**
+     * Clears all bits (set to false).
+     */
+    public function clear() : void
+    {
+        $max = count($this->bits);
+
+        for ($i = 0; $i < $max; ++$i) {
+            $this->bits[$i] = 0;
+        }
+    }
+
+    /**
+     * Sets a square region of the bit matrix to true.
+     *
+     * @throws InvalidArgumentException if left or top are negative
+     * @throws InvalidArgumentException if width or height are smaller than 1
+     * @throws InvalidArgumentException if region does not fit into the matix
+     */
+    public function setRegion(int $left, int $top, int $width, int $height) : void
+    {
+        if ($top < 0 || $left < 0) {
+            throw new InvalidArgumentException('Left and top must be non-negative');
+        }
+
+        if ($height < 1 || $width < 1) {
+            throw new InvalidArgumentException('Width and height must be at least 1');
+        }
+
+        $right = $left + $width;
+        $bottom = $top + $height;
+
+        if ($bottom > $this->height || $right > $this->width) {
+            throw new InvalidArgumentException('The region must fit inside the matrix');
+        }
+
+        for ($y = $top; $y < $bottom; ++$y) {
+            $offset = $y * $this->rowSize;
+
+            for ($x = $left; $x < $right; ++$x) {
+                $index = $offset + ($x >> 5);
+                $this->bits[$index] = $this->bits[$index] | (1 << ($x & 0x1f));
+            }
+        }
+    }
+
+    /**
+     * A fast method to retrieve one row of data from the matrix as a BitArray.
+     */
+    public function getRow(int $y, ?BitArray $row = null) : BitArray
+    {
+        if (null === $row || $row->getSize() < $this->width) {
+            $row = new BitArray($this->width);
+        }
+
+        $offset = $y * $this->rowSize;
+
+        for ($x = 0; $x < $this->rowSize; ++$x) {
+            $row->setBulk($x << 5, $this->bits[$offset + $x]);
+        }
+
+        return $row;
+    }
+
+    /**
+     * Sets a row of data from a BitArray.
+     */
+    public function setRow(int $y, BitArray $row) : void
+    {
+        $bits = $row->getBitArray();
+
+        for ($i = 0; $i < $this->rowSize; ++$i) {
+            $this->bits[$y * $this->rowSize + $i] = $bits[$i];
+        }
+    }
+
+    /**
+     * This is useful in detecting the enclosing rectangle of a 'pure' barcode.
+     *
+     * @return int[]|null
+     */
+    public function getEnclosingRectangle() : ?array
+    {
+        $left = $this->width;
+        $top = $this->height;
+        $right = -1;
+        $bottom = -1;
+
+        for ($y = 0; $y < $this->height; ++$y) {
+            for ($x32 = 0; $x32 < $this->rowSize; ++$x32) {
+                $bits = $this->bits[$y * $this->rowSize + $x32];
+
+                if (0 !== $bits) {
+                    if ($y < $top) {
+                        $top = $y;
+                    }
+
+                    if ($y > $bottom) {
+                        $bottom = $y;
+                    }
+
+                    if ($x32 * 32 < $left) {
+                        $bit = 0;
+
+                        while (($bits << (31 - $bit)) === 0) {
+                            $bit++;
+                        }
+
+                        if (($x32 * 32 + $bit) < $left) {
+                            $left = $x32 * 32 + $bit;
+                        }
+                    }
+                }
+
+                if ($x32 * 32 + 31 > $right) {
+                    $bit = 31;
+
+                    while (0 === BitUtils::unsignedRightShift($bits, $bit)) {
+                        --$bit;
+                    }
+
+                    if (($x32 * 32 + $bit) > $right) {
+                        $right = $x32 * 32 + $bit;
+                    }
+                }
+            }
+        }
+
+        $width = $right - $left;
+        $height = $bottom - $top;
+
+        if ($width < 0 || $height < 0) {
+            return null;
+        }
+
+        return [$left, $top, $width, $height];
+    }
+
+    /**
+     * Gets the most top left set bit.
+     *
+     * This is useful in detecting a corner of a 'pure' barcode.
+     *
+     * @return int[]|null
+     */
+    public function getTopLeftOnBit() : ?array
+    {
+        $bitsOffset = 0;
+
+        while ($bitsOffset < count($this->bits) && 0 === $this->bits[$bitsOffset]) {
+            ++$bitsOffset;
+        }
+
+        if (count($this->bits) === $bitsOffset) {
+            return null;
+        }
+
+        $x = intdiv($bitsOffset, $this->rowSize);
+        $y = ($bitsOffset % $this->rowSize) << 5;
+
+        $bits = $this->bits[$bitsOffset];
+        $bit = 0;
+
+        while (0 === ($bits << (31 - $bit))) {
+            ++$bit;
+        }
+
+        $x += $bit;
+
+        return [$x, $y];
+    }
+
+    /**
+     * Gets the most bottom right set bit.
+     *
+     * This is useful in detecting a corner of a 'pure' barcode.
+     *
+     * @return int[]|null
+     */
+    public function getBottomRightOnBit() : ?array
+    {
+        $bitsOffset = count($this->bits) - 1;
+
+        while ($bitsOffset >= 0 && 0 === $this->bits[$bitsOffset]) {
+            --$bitsOffset;
+        }
+
+        if ($bitsOffset < 0) {
+            return null;
+        }
+
+        $x = intdiv($bitsOffset, $this->rowSize);
+        $y = ($bitsOffset % $this->rowSize) << 5;
+
+        $bits = $this->bits[$bitsOffset];
+        $bit  = 0;
+
+        while (0 === BitUtils::unsignedRightShift($bits, $bit)) {
+            --$bit;
+        }
+
+        $x += $bit;
+
+        return [$x, $y];
+    }
+
+    /**
+     * Gets the width of the matrix,
+     */
+    public function getWidth() : int
+    {
+        return $this->width;
+    }
+
+    /**
+     * Gets the height of the matrix.
+     */
+    public function getHeight() : int
+    {
+        return $this->height;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/BitUtils.php

@@ -0,0 +1,41 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+/**
+ * General bit utilities.
+ *
+ * All utility methods are based on 32-bit integers and also work on 64-bit
+ * systems.
+ */
+final class BitUtils
+{
+    private function __construct()
+    {
+    }
+
+    /**
+     * Performs an unsigned right shift.
+     *
+     * This is the same as the unsigned right shift operator ">>>" in other
+     * languages.
+     */
+    public static function unsignedRightShift(int $a, int $b) : int
+    {
+        return (
+            $a >= 0
+            ? $a >> $b
+            : (($a & 0x7fffffff) >> $b) | (0x40000000 >> ($b - 1))
+        );
+    }
+
+    /**
+     * Gets the number of trailing zeros.
+     */
+    public static function numberOfTrailingZeros(int $i) : int
+    {
+        $lastPos = strrpos(str_pad(decbin($i), 32, '0', STR_PAD_LEFT), '1');
+        return $lastPos === false ? 32 : 31 - $lastPos;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/CharacterSetEci.php

@@ -0,0 +1,177 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+use BaconQrCode\Exception\InvalidArgumentException;
+use DASPRiD\Enum\AbstractEnum;
+
+/**
+ * Encapsulates a Character Set ECI, according to "Extended Channel Interpretations" 5.3.1.1 of ISO 18004.
+ *
+ * @method static self CP437()
+ * @method static self ISO8859_1()
+ * @method static self ISO8859_2()
+ * @method static self ISO8859_3()
+ * @method static self ISO8859_4()
+ * @method static self ISO8859_5()
+ * @method static self ISO8859_6()
+ * @method static self ISO8859_7()
+ * @method static self ISO8859_8()
+ * @method static self ISO8859_9()
+ * @method static self ISO8859_10()
+ * @method static self ISO8859_11()
+ * @method static self ISO8859_12()
+ * @method static self ISO8859_13()
+ * @method static self ISO8859_14()
+ * @method static self ISO8859_15()
+ * @method static self ISO8859_16()
+ * @method static self SJIS()
+ * @method static self CP1250()
+ * @method static self CP1251()
+ * @method static self CP1252()
+ * @method static self CP1256()
+ * @method static self UNICODE_BIG_UNMARKED()
+ * @method static self UTF8()
+ * @method static self ASCII()
+ * @method static self BIG5()
+ * @method static self GB18030()
+ * @method static self EUC_KR()
+ */
+final class CharacterSetEci extends AbstractEnum
+{
+    protected const CP437 = [[0, 2]];
+    protected const ISO8859_1 = [[1, 3], 'ISO-8859-1'];
+    protected const ISO8859_2 = [[4], 'ISO-8859-2'];
+    protected const ISO8859_3 = [[5], 'ISO-8859-3'];
+    protected const ISO8859_4 = [[6], 'ISO-8859-4'];
+    protected const ISO8859_5 = [[7], 'ISO-8859-5'];
+    protected const ISO8859_6 = [[8], 'ISO-8859-6'];
+    protected const ISO8859_7 = [[9], 'ISO-8859-7'];
+    protected const ISO8859_8 = [[10], 'ISO-8859-8'];
+    protected const ISO8859_9 = [[11], 'ISO-8859-9'];
+    protected const ISO8859_10 = [[12], 'ISO-8859-10'];
+    protected const ISO8859_11 = [[13], 'ISO-8859-11'];
+    protected const ISO8859_12 = [[14], 'ISO-8859-12'];
+    protected const ISO8859_13 = [[15], 'ISO-8859-13'];
+    protected const ISO8859_14 = [[16], 'ISO-8859-14'];
+    protected const ISO8859_15 = [[17], 'ISO-8859-15'];
+    protected const ISO8859_16 = [[18], 'ISO-8859-16'];
+    protected const SJIS = [[20], 'Shift_JIS'];
+    protected const CP1250 = [[21], 'windows-1250'];
+    protected const CP1251 = [[22], 'windows-1251'];
+    protected const CP1252 = [[23], 'windows-1252'];
+    protected const CP1256 = [[24], 'windows-1256'];
+    protected const UNICODE_BIG_UNMARKED = [[25], 'UTF-16BE', 'UnicodeBig'];
+    protected const UTF8 = [[26], 'UTF-8'];
+    protected const ASCII = [[27, 170], 'US-ASCII'];
+    protected const BIG5 = [[28]];
+    protected const GB18030 = [[29], 'GB2312', 'EUC_CN', 'GBK'];
+    protected const EUC_KR = [[30], 'EUC-KR'];
+
+    /**
+     * @var string[]
+     */
+    private array $otherEncodingNames;
+
+    /**
+     * @var array<int, self>|null
+     */
+    private static ?array $valueToEci;
+
+    /**
+     * @var array<string, self>|null
+     */
+    private static ?array $nameToEci = null;
+
+    /**
+     * @param int[] $values
+     */
+    public function __construct(private readonly array $values, string ...$otherEncodingNames)
+    {
+        $this->otherEncodingNames = $otherEncodingNames;
+    }
+
+    /**
+     * Returns the primary value.
+     */
+    public function getValue() : int
+    {
+        return $this->values[0];
+    }
+
+    /**
+     * Gets character set ECI by value.
+     *
+     * Returns the representing ECI of a given value, or null if it is legal but unsupported.
+     *
+     * @throws InvalidArgumentException if value is not between 0 and 900
+     */
+    public static function getCharacterSetEciByValue(int $value) : ?self
+    {
+        if ($value < 0 || $value >= 900) {
+            throw new InvalidArgumentException('Value must be between 0 and 900');
+        }
+
+        $valueToEci = self::valueToEci();
+
+        if (! array_key_exists($value, $valueToEci)) {
+            return null;
+        }
+
+        return $valueToEci[$value];
+    }
+
+    /**
+     * Returns character set ECI by name.
+     *
+     * Returns the representing ECI of a given name, or null if it is legal but unsupported
+     */
+    public static function getCharacterSetEciByName(string $name) : ?self
+    {
+        $nameToEci = self::nameToEci();
+        $name = strtolower($name);
+
+        if (! array_key_exists($name, $nameToEci)) {
+            return null;
+        }
+
+        return $nameToEci[$name];
+    }
+
+    private static function valueToEci() : array
+    {
+        if (null !== self::$valueToEci) {
+            return self::$valueToEci;
+        }
+
+        self::$valueToEci = [];
+
+        foreach (self::values() as $eci) {
+            foreach ($eci->values as $value) {
+                self::$valueToEci[$value] = $eci;
+            }
+        }
+
+        return self::$valueToEci;
+    }
+
+    private static function nameToEci() : array
+    {
+        if (null !== self::$nameToEci) {
+            return self::$nameToEci;
+        }
+
+        self::$nameToEci = [];
+
+        foreach (self::values() as $eci) {
+            self::$nameToEci[strtolower($eci->name())] = $eci;
+
+            foreach ($eci->otherEncodingNames as $name) {
+                self::$nameToEci[strtolower($name)] = $eci;
+            }
+        }
+
+        return self::$nameToEci;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/EcBlock.php

@@ -0,0 +1,33 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+/**
+ * Encapsulates the parameters for one error-correction block in one symbol version.
+ *
+ * This includes the number of data codewords, and the number of times a block with these parameters is used
+ * consecutively in the QR code version's format.
+ */
+final class EcBlock
+{
+    public function __construct(private readonly int $count, private readonly int $dataCodewords)
+    {
+    }
+
+    /**
+     * Returns how many times the block is used.
+     */
+    public function getCount() : int
+    {
+        return $this->count;
+    }
+
+    /**
+     * Returns the number of data codewords.
+     */
+    public function getDataCodewords() : int
+    {
+        return $this->dataCodewords;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/EcBlocks.php

@@ -0,0 +1,66 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+/**
+ * Encapsulates a set of error-correction blocks in one symbol version.
+ *
+ * Most versions will use blocks of differing sizes within one version, so, this encapsulates the parameters for each
+ * set of blocks. It also holds the number of error-correction codewords per block since it will be the same across all
+ * blocks within one version.
+ */
+final class EcBlocks
+{
+    /**
+     * List of EC blocks.
+     *
+     * @var EcBlock[]
+     */
+    private array $ecBlocks;
+
+    public function __construct(private readonly int $ecCodewordsPerBlock, EcBlock ...$ecBlocks)
+    {
+        $this->ecBlocks = $ecBlocks;
+    }
+
+    /**
+     * Returns the number of EC codewords per block.
+     */
+    public function getEcCodewordsPerBlock() : int
+    {
+        return $this->ecCodewordsPerBlock;
+    }
+
+    /**
+     * Returns the total number of EC block appearances.
+     */
+    public function getNumBlocks() : int
+    {
+        $total = 0;
+
+        foreach ($this->ecBlocks as $ecBlock) {
+            $total += $ecBlock->getCount();
+        }
+
+        return $total;
+    }
+
+    /**
+     * Returns the total count of EC codewords.
+     */
+    public function getTotalEcCodewords() : int
+    {
+        return $this->ecCodewordsPerBlock * $this->getNumBlocks();
+    }
+
+    /**
+     * Returns the EC blocks included in this collection.
+     *
+     * @return EcBlock[]
+     */
+    public function getEcBlocks() : array
+    {
+        return $this->ecBlocks;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/ErrorCorrectionLevel.php

@@ -0,0 +1,57 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+use BaconQrCode\Exception\OutOfBoundsException;
+use DASPRiD\Enum\AbstractEnum;
+
+/**
+ * Enum representing the four error correction levels.
+ *
+ * @method static self L() ~7% correction
+ * @method static self M() ~15% correction
+ * @method static self Q() ~25% correction
+ * @method static self H() ~30% correction
+ */
+final class ErrorCorrectionLevel extends AbstractEnum
+{
+    protected const L = [0x01];
+    protected const M = [0x00];
+    protected const Q = [0x03];
+    protected const H = [0x02];
+
+    protected function __construct(private readonly int $bits)
+    {
+    }
+
+    /**
+     * @throws OutOfBoundsException if number of bits is invalid
+     */
+    public static function forBits(int $bits) : self
+    {
+        switch ($bits) {
+            case 0:
+                return self::M();
+
+            case 1:
+                return self::L();
+
+            case 2:
+                return self::H();
+
+            case 3:
+                return self::Q();
+        }
+
+        throw new OutOfBoundsException('Invalid number of bits');
+    }
+
+    /**
+     * Returns the two bits used to encode this error correction level.
+     */
+    public function getBits() : int
+    {
+        return $this->bits;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/FormatInformation.php

@@ -0,0 +1,196 @@
+<?php
+/**
+ * BaconQrCode
+ *
+ * @link      http://github.com/Bacon/BaconQrCode For the canonical source repository
+ * @copyright 2013 Ben 'DASPRiD' Scholzen
+ * @license   http://opensource.org/licenses/BSD-2-Clause Simplified BSD License
+ */
+
+namespace BaconQrCode\Common;
+
+/**
+ * Encapsulates a QR Code's format information, including the data mask used and error correction level.
+ */
+class FormatInformation
+{
+    /**
+     * Mask for format information.
+     */
+    private const FORMAT_INFO_MASK_QR = 0x5412;
+
+    /**
+     * Lookup table for decoding format information.
+     *
+     * See ISO 18004:2006, Annex C, Table C.1
+     */
+    private const FORMAT_INFO_DECODE_LOOKUP = [
+        [0x5412, 0x00],
+        [0x5125, 0x01],
+        [0x5e7c, 0x02],
+        [0x5b4b, 0x03],
+        [0x45f9, 0x04],
+        [0x40ce, 0x05],
+        [0x4f97, 0x06],
+        [0x4aa0, 0x07],
+        [0x77c4, 0x08],
+        [0x72f3, 0x09],
+        [0x7daa, 0x0a],
+        [0x789d, 0x0b],
+        [0x662f, 0x0c],
+        [0x6318, 0x0d],
+        [0x6c41, 0x0e],
+        [0x6976, 0x0f],
+        [0x1689, 0x10],
+        [0x13be, 0x11],
+        [0x1ce7, 0x12],
+        [0x19d0, 0x13],
+        [0x0762, 0x14],
+        [0x0255, 0x15],
+        [0x0d0c, 0x16],
+        [0x083b, 0x17],
+        [0x355f, 0x18],
+        [0x3068, 0x19],
+        [0x3f31, 0x1a],
+        [0x3a06, 0x1b],
+        [0x24b4, 0x1c],
+        [0x2183, 0x1d],
+        [0x2eda, 0x1e],
+        [0x2bed, 0x1f],
+    ];
+
+    /**
+     * Offset i holds the number of 1 bits in the binary representation of i.
+     *
+     * @var int[]
+     */
+    private const BITS_SET_IN_HALF_BYTE = [0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4];
+
+    /**
+     * Error correction level.
+     */
+    private ErrorCorrectionLevel $ecLevel;
+
+    private int $dataMask;
+
+    protected function __construct(int $formatInfo)
+    {
+        $this->ecLevel = ErrorCorrectionLevel::forBits(($formatInfo >> 3) & 0x3);
+        $this->dataMask = $formatInfo & 0x7;
+    }
+
+    /**
+     * Checks how many bits are different between two integers.
+     */
+    public static function numBitsDiffering(int $a, int $b) : int
+    {
+        $a ^= $b;
+
+        return (
+            self::BITS_SET_IN_HALF_BYTE[$a & 0xf]
+            + self::BITS_SET_IN_HALF_BYTE[(BitUtils::unsignedRightShift($a, 4) & 0xf)]
+            + self::BITS_SET_IN_HALF_BYTE[(BitUtils::unsignedRightShift($a, 8) & 0xf)]
+            + self::BITS_SET_IN_HALF_BYTE[(BitUtils::unsignedRightShift($a, 12) & 0xf)]
+            + self::BITS_SET_IN_HALF_BYTE[(BitUtils::unsignedRightShift($a, 16) & 0xf)]
+            + self::BITS_SET_IN_HALF_BYTE[(BitUtils::unsignedRightShift($a, 20) & 0xf)]
+            + self::BITS_SET_IN_HALF_BYTE[(BitUtils::unsignedRightShift($a, 24) & 0xf)]
+            + self::BITS_SET_IN_HALF_BYTE[(BitUtils::unsignedRightShift($a, 28) & 0xf)]
+        );
+    }
+
+    /**
+     * Decodes format information.
+     */
+    public static function decodeFormatInformation(int $maskedFormatInfo1, int $maskedFormatInfo2) : ?self
+    {
+        $formatInfo = self::doDecodeFormatInformation($maskedFormatInfo1, $maskedFormatInfo2);
+
+        if (null !== $formatInfo) {
+            return $formatInfo;
+        }
+
+        // Should return null, but, some QR codes apparently do not mask this info. Try again by actually masking the
+        // pattern first.
+        return self::doDecodeFormatInformation(
+            $maskedFormatInfo1 ^ self::FORMAT_INFO_MASK_QR,
+            $maskedFormatInfo2 ^ self::FORMAT_INFO_MASK_QR
+        );
+    }
+
+    /**
+     * Internal method for decoding format information.
+     */
+    private static function doDecodeFormatInformation(int $maskedFormatInfo1, int $maskedFormatInfo2) : ?self
+    {
+        $bestDifference = PHP_INT_MAX;
+        $bestFormatInfo = 0;
+
+        foreach (self::FORMAT_INFO_DECODE_LOOKUP as $decodeInfo) {
+            $targetInfo = $decodeInfo[0];
+
+            if ($targetInfo === $maskedFormatInfo1 || $targetInfo === $maskedFormatInfo2) {
+                // Found an exact match
+                return new self($decodeInfo[1]);
+            }
+
+            $bitsDifference = self::numBitsDiffering($maskedFormatInfo1, $targetInfo);
+
+            if ($bitsDifference < $bestDifference) {
+                $bestFormatInfo = $decodeInfo[1];
+                $bestDifference = $bitsDifference;
+            }
+
+            if ($maskedFormatInfo1 !== $maskedFormatInfo2) {
+                // Also try the other option
+                $bitsDifference = self::numBitsDiffering($maskedFormatInfo2, $targetInfo);
+
+                if ($bitsDifference < $bestDifference) {
+                    $bestFormatInfo = $decodeInfo[1];
+                    $bestDifference = $bitsDifference;
+                }
+            }
+        }
+
+        // Hamming distance of the 32 masked codes is 7, by construction, so <= 3 bits differing means we found a match.
+        if ($bestDifference <= 3) {
+            return new self($bestFormatInfo);
+        }
+
+        return null;
+    }
+
+    /**
+     * Returns the error correction level.
+     */
+    public function getErrorCorrectionLevel() : ErrorCorrectionLevel
+    {
+        return $this->ecLevel;
+    }
+
+    /**
+     * Returns the data mask.
+     */
+    public function getDataMask() : int
+    {
+        return $this->dataMask;
+    }
+
+    /**
+     * Hashes the code of the EC level.
+     */
+    public function hashCode() : int
+    {
+        return ($this->ecLevel->getBits() << 3) | $this->dataMask;
+    }
+
+    /**
+     * Verifies if this instance equals another one.
+     */
+    public function equals(self $other) : bool
+    {
+        return (
+            $this->ecLevel === $other->ecLevel
+            && $this->dataMask === $other->dataMask
+        );
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/Mode.php

@@ -0,0 +1,69 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+use DASPRiD\Enum\AbstractEnum;
+
+/**
+ * Enum representing various modes in which data can be encoded to bits.
+ *
+ * @method static self TERMINATOR()
+ * @method static self NUMERIC()
+ * @method static self ALPHANUMERIC()
+ * @method static self STRUCTURED_APPEND()
+ * @method static self BYTE()
+ * @method static self ECI()
+ * @method static self KANJI()
+ * @method static self FNC1_FIRST_POSITION()
+ * @method static self FNC1_SECOND_POSITION()
+ * @method static self HANZI()
+ */
+final class Mode extends AbstractEnum
+{
+    protected const TERMINATOR = [[0, 0, 0], 0x00];
+    protected const NUMERIC = [[10, 12, 14], 0x01];
+    protected const ALPHANUMERIC = [[9, 11, 13], 0x02];
+    protected const STRUCTURED_APPEND = [[0, 0, 0], 0x03];
+    protected const BYTE = [[8, 16, 16], 0x04];
+    protected const ECI = [[0, 0, 0], 0x07];
+    protected const KANJI = [[8, 10, 12], 0x08];
+    protected const FNC1_FIRST_POSITION = [[0, 0, 0], 0x05];
+    protected const FNC1_SECOND_POSITION = [[0, 0, 0], 0x09];
+    protected const HANZI = [[8, 10, 12], 0x0d];
+
+    /**
+     * @param int[] $characterCountBitsForVersions
+     */
+    protected function __construct(
+        private readonly array $characterCountBitsForVersions,
+        private readonly int   $bits
+    ) {
+    }
+
+    /**
+     * Returns the number of bits used in a specific QR code version.
+     */
+    public function getCharacterCountBits(Version $version) : int
+    {
+        $number = $version->getVersionNumber();
+
+        if ($number <= 9) {
+            $offset = 0;
+        } elseif ($number <= 26) {
+            $offset = 1;
+        } else {
+            $offset = 2;
+        }
+
+        return $this->characterCountBitsForVersions[$offset];
+    }
+
+    /**
+     * Returns the four bits used to encode this mode.
+     */
+    public function getBits() : int
+    {
+        return $this->bits;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/ReedSolomonCodec.php

@@ -0,0 +1,454 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+use BaconQrCode\Exception\InvalidArgumentException;
+use BaconQrCode\Exception\RuntimeException;
+use SplFixedArray;
+
+/**
+ * Reed-Solomon codec for 8-bit characters.
+ *
+ * Based on libfec by Phil Karn, KA9Q.
+ */
+final class ReedSolomonCodec
+{
+    /**
+     * Symbol size in bits.
+     */
+    private int $symbolSize;
+
+    /**
+     * Block size in symbols.
+     */
+    private int $blockSize;
+
+    /**
+     * First root of RS code generator polynomial, index form.
+     */
+    private int $firstRoot;
+
+    /**
+     * Primitive element to generate polynomial roots, index form.
+     */
+    private int $primitive;
+
+    /**
+     * Prim-th root of 1, index form.
+     */
+    private int $iPrimitive;
+
+    /**
+     * RS code generator polynomial degree (number of roots).
+     */
+    private int $numRoots;
+
+    /**
+     * Padding bytes at front of shortened block.
+     */
+    private int $padding;
+
+    /**
+     * Log lookup table.
+     *
+     * @var SplFixedArray
+     */
+    private SplFixedArray $alphaTo;
+
+    /**
+     * Anti-Log lookup table.
+     *
+     * @var SplFixedArray
+     */
+    private SplFixedArray $indexOf;
+
+    /**
+     * Generator polynomial.
+     *
+     * @var SplFixedArray
+     */
+    private SplFixedArray $generatorPoly;
+
+    /**
+     * @throws InvalidArgumentException if symbol size ist not between 0 and 8
+     * @throws InvalidArgumentException if first root is invalid
+     * @throws InvalidArgumentException if num roots is invalid
+     * @throws InvalidArgumentException if padding is invalid
+     * @throws RuntimeException if field generator polynomial is not primitive
+     */
+    public function __construct(
+        int $symbolSize,
+        int $gfPoly,
+        int $firstRoot,
+        int $primitive,
+        int $numRoots,
+        int $padding
+    ) {
+        if ($symbolSize < 0 || $symbolSize > 8) {
+            throw new InvalidArgumentException('Symbol size must be between 0 and 8');
+        }
+
+        if ($firstRoot < 0 || $firstRoot >= (1 << $symbolSize)) {
+            throw new InvalidArgumentException('First root must be between 0 and ' . (1 << $symbolSize));
+        }
+
+        if ($numRoots < 0 || $numRoots >= (1 << $symbolSize)) {
+            throw new InvalidArgumentException('Num roots must be between 0 and ' . (1 << $symbolSize));
+        }
+
+        if ($padding < 0 || $padding >= ((1 << $symbolSize) - 1 - $numRoots)) {
+            throw new InvalidArgumentException(
+                'Padding must be between 0 and ' . ((1 << $symbolSize) - 1 - $numRoots)
+            );
+        }
+
+        $this->symbolSize = $symbolSize;
+        $this->blockSize = (1 << $symbolSize) - 1;
+        $this->padding = $padding;
+        $this->alphaTo = SplFixedArray::fromArray(array_fill(0, $this->blockSize + 1, 0), false);
+        $this->indexOf = SplFixedArray::fromArray(array_fill(0, $this->blockSize + 1, 0), false);
+
+        // Generate galous field lookup table
+        $this->indexOf[0] = $this->blockSize;
+        $this->alphaTo[$this->blockSize] = 0;
+
+        $sr = 1;
+
+        for ($i = 0; $i < $this->blockSize; ++$i) {
+            $this->indexOf[$sr] = $i;
+            $this->alphaTo[$i]  = $sr;
+
+            $sr <<= 1;
+
+            if ($sr & (1 << $symbolSize)) {
+                $sr ^= $gfPoly;
+            }
+
+            $sr &= $this->blockSize;
+        }
+
+        if (1 !== $sr) {
+            throw new RuntimeException('Field generator polynomial is not primitive');
+        }
+
+        // Form RS code generator polynomial from its roots
+        $this->generatorPoly = SplFixedArray::fromArray(array_fill(0, $numRoots + 1, 0), false);
+        $this->firstRoot = $firstRoot;
+        $this->primitive = $primitive;
+        $this->numRoots = $numRoots;
+
+        // Find prim-th root of 1, used in decoding
+        for ($iPrimitive = 1; ($iPrimitive % $primitive) !== 0; $iPrimitive += $this->blockSize) {
+        }
+
+        $this->iPrimitive = intdiv($iPrimitive, $primitive);
+
+        $this->generatorPoly[0] = 1;
+
+        for ($i = 0, $root = $firstRoot * $primitive; $i < $numRoots; ++$i, $root += $primitive) {
+            $this->generatorPoly[$i + 1] = 1;
+
+            for ($j = $i; $j > 0; $j--) {
+                if ($this->generatorPoly[$j] !== 0) {
+                    $this->generatorPoly[$j] = $this->generatorPoly[$j - 1] ^ $this->alphaTo[
+                        $this->modNn($this->indexOf[$this->generatorPoly[$j]] + $root)
+                    ];
+                } else {
+                    $this->generatorPoly[$j] = $this->generatorPoly[$j - 1];
+                }
+            }
+
+            $this->generatorPoly[$j] = $this->alphaTo[$this->modNn($this->indexOf[$this->generatorPoly[0]] + $root)];
+        }
+
+        // Convert generator poly to index form for quicker encoding
+        for ($i = 0; $i <= $numRoots; ++$i) {
+            $this->generatorPoly[$i] = $this->indexOf[$this->generatorPoly[$i]];
+        }
+    }
+
+    /**
+     * Encodes data and writes result back into parity array.
+     */
+    public function encode(SplFixedArray $data, SplFixedArray $parity) : void
+    {
+        for ($i = 0; $i < $this->numRoots; ++$i) {
+            $parity[$i] = 0;
+        }
+
+        $iterations = $this->blockSize - $this->numRoots - $this->padding;
+
+        for ($i = 0; $i < $iterations; ++$i) {
+            $feedback = $this->indexOf[$data[$i] ^ $parity[0]];
+
+            if ($feedback !== $this->blockSize) {
+                // Feedback term is non-zero
+                $feedback = $this->modNn($this->blockSize - $this->generatorPoly[$this->numRoots] + $feedback);
+
+                for ($j = 1; $j < $this->numRoots; ++$j) {
+                    $parity[$j] = $parity[$j] ^ $this->alphaTo[
+                        $this->modNn($feedback + $this->generatorPoly[$this->numRoots - $j])
+                    ];
+                }
+            }
+
+            for ($j = 0; $j < $this->numRoots - 1; ++$j) {
+                $parity[$j] = $parity[$j + 1];
+            }
+
+            if ($feedback !== $this->blockSize) {
+                $parity[$this->numRoots - 1] = $this->alphaTo[$this->modNn($feedback + $this->generatorPoly[0])];
+            } else {
+                $parity[$this->numRoots - 1] = 0;
+            }
+        }
+    }
+
+    /**
+     * Decodes received data.
+     */
+    public function decode(SplFixedArray $data, ?SplFixedArray $erasures = null) : ?int
+    {
+        // This speeds up the initialization a bit.
+        $numRootsPlusOne = SplFixedArray::fromArray(array_fill(0, $this->numRoots + 1, 0), false);
+        $numRoots = SplFixedArray::fromArray(array_fill(0, $this->numRoots, 0), false);
+
+        $lambda = clone $numRootsPlusOne;
+        $b = clone $numRootsPlusOne;
+        $t = clone $numRootsPlusOne;
+        $omega = clone $numRootsPlusOne;
+        $root = clone $numRoots;
+        $loc = clone $numRoots;
+
+        $numErasures = (null !== $erasures ? count($erasures) : 0);
+
+        // Form the Syndromes; i.e., evaluate data(x) at roots of g(x)
+        $syndromes = SplFixedArray::fromArray(array_fill(0, $this->numRoots, $data[0]), false);
+
+        for ($i = 1; $i < $this->blockSize - $this->padding; ++$i) {
+            for ($j = 0; $j < $this->numRoots; ++$j) {
+                if ($syndromes[$j] === 0) {
+                    $syndromes[$j] = $data[$i];
+                } else {
+                    $syndromes[$j] = $data[$i] ^ $this->alphaTo[
+                        $this->modNn($this->indexOf[$syndromes[$j]] + ($this->firstRoot + $j) * $this->primitive)
+                    ];
+                }
+            }
+        }
+
+        // Convert syndromes to index form, checking for nonzero conditions
+        $syndromeError = 0;
+
+        for ($i = 0; $i < $this->numRoots; ++$i) {
+            $syndromeError |= $syndromes[$i];
+            $syndromes[$i] = $this->indexOf[$syndromes[$i]];
+        }
+
+        if (! $syndromeError) {
+            // If syndrome is zero, data[] is a codeword and there are no errors to correct, so return data[]
+            // unmodified.
+            return 0;
+        }
+
+        $lambda[0] = 1;
+
+        if ($numErasures > 0) {
+            // Init lambda to be the erasure locator polynomial
+            $lambda[1] = $this->alphaTo[$this->modNn($this->primitive * ($this->blockSize - 1 - $erasures[0]))];
+
+            for ($i = 1; $i < $numErasures; ++$i) {
+                $u = $this->modNn($this->primitive * ($this->blockSize - 1 - $erasures[$i]));
+
+                for ($j = $i + 1; $j > 0; --$j) {
+                    $tmp = $this->indexOf[$lambda[$j - 1]];
+
+                    if ($tmp !== $this->blockSize) {
+                        $lambda[$j] = $lambda[$j] ^ $this->alphaTo[$this->modNn($u + $tmp)];
+                    }
+                }
+            }
+        }
+
+        for ($i = 0; $i <= $this->numRoots; ++$i) {
+            $b[$i] = $this->indexOf[$lambda[$i]];
+        }
+
+        // Begin Berlekamp-Massey algorithm to determine error+erasure locator polynomial
+        $r  = $numErasures;
+        $el = $numErasures;
+
+        while (++$r <= $this->numRoots) {
+            // Compute discrepancy at the r-th step in poly form
+            $discrepancyR = 0;
+
+            for ($i = 0; $i < $r; ++$i) {
+                if ($lambda[$i] !== 0 && $syndromes[$r - $i - 1] !== $this->blockSize) {
+                    $discrepancyR ^= $this->alphaTo[
+                        $this->modNn($this->indexOf[$lambda[$i]] + $syndromes[$r - $i - 1])
+                    ];
+                }
+            }
+
+            $discrepancyR = $this->indexOf[$discrepancyR];
+
+            if ($discrepancyR === $this->blockSize) {
+                $tmp = $b->toArray();
+                array_unshift($tmp, $this->blockSize);
+                array_pop($tmp);
+                $b = SplFixedArray::fromArray($tmp, false);
+                continue;
+            }
+
+            $t[0] = $lambda[0];
+
+            for ($i = 0; $i < $this->numRoots; ++$i) {
+                if ($b[$i] !== $this->blockSize) {
+                    $t[$i + 1] = $lambda[$i + 1] ^ $this->alphaTo[$this->modNn($discrepancyR + $b[$i])];
+                } else {
+                    $t[$i + 1] = $lambda[$i + 1];
+                }
+            }
+
+            if (2 * $el <= $r + $numErasures - 1) {
+                $el = $r + $numErasures - $el;
+
+                for ($i = 0; $i <= $this->numRoots; ++$i) {
+                    $b[$i] = (
+                        $lambda[$i] === 0
+                        ? $this->blockSize
+                        : $this->modNn($this->indexOf[$lambda[$i]] - $discrepancyR + $this->blockSize)
+                    );
+                }
+            } else {
+                $tmp = $b->toArray();
+                array_unshift($tmp, $this->blockSize);
+                array_pop($tmp);
+                $b = SplFixedArray::fromArray($tmp, false);
+            }
+
+            $lambda = clone $t;
+        }
+
+        // Convert lambda to index form and compute deg(lambda(x))
+        $degLambda = 0;
+
+        for ($i = 0; $i <= $this->numRoots; ++$i) {
+            $lambda[$i] = $this->indexOf[$lambda[$i]];
+
+            if ($lambda[$i] !== $this->blockSize) {
+                $degLambda = $i;
+            }
+        }
+
+        // Find roots of the error+erasure locator polynomial by Chien search.
+        $reg = clone $lambda;
+        $reg[0] = 0;
+        $count = 0;
+        $i = 1;
+
+        for ($k = $this->iPrimitive - 1; $i <= $this->blockSize; ++$i, $k = $this->modNn($k + $this->iPrimitive)) {
+            $q = 1;
+
+            for ($j = $degLambda; $j > 0; $j--) {
+                if ($reg[$j] !== $this->blockSize) {
+                    $reg[$j] = $this->modNn($reg[$j] + $j);
+                    $q ^= $this->alphaTo[$reg[$j]];
+                }
+            }
+
+            if ($q !== 0) {
+                // Not a root
+                continue;
+            }
+
+            // Store root (index-form) and error location number
+            $root[$count] = $i;
+            $loc[$count] = $k;
+
+            if (++$count === $degLambda) {
+                break;
+            }
+        }
+
+        if ($degLambda !== $count) {
+            // deg(lambda) unequal to number of roots: uncorrectable error detected
+            return null;
+        }
+
+        // Compute err+eras evaluate poly omega(x) = s(x)*lambda(x) (modulo x**numRoots). In index form. Also find
+        // deg(omega).
+        $degOmega = $degLambda - 1;
+
+        for ($i = 0; $i <= $degOmega; ++$i) {
+            $tmp = 0;
+
+            for ($j = $i; $j >= 0; --$j) {
+                if ($syndromes[$i - $j] !== $this->blockSize && $lambda[$j] !== $this->blockSize) {
+                    $tmp ^= $this->alphaTo[$this->modNn($syndromes[$i - $j] + $lambda[$j])];
+                }
+            }
+
+            $omega[$i] = $this->indexOf[$tmp];
+        }
+
+        // Compute error values in poly-form. num1 = omega(inv(X(l))), num2 = inv(X(l))**(firstRoot-1) and
+        // den = lambda_pr(inv(X(l))) all in poly form.
+        for ($j = $count - 1; $j >= 0; --$j) {
+            $num1 = 0;
+
+            for ($i = $degOmega; $i >= 0; $i--) {
+                if ($omega[$i] !== $this->blockSize) {
+                    $num1 ^= $this->alphaTo[$this->modNn($omega[$i] + $i * $root[$j])];
+                }
+            }
+
+            $num2 = $this->alphaTo[$this->modNn($root[$j] * ($this->firstRoot - 1) + $this->blockSize)];
+            $den  = 0;
+
+            // lambda[i+1] for i even is the formal derivativelambda_pr of lambda[i]
+            for ($i = min($degLambda, $this->numRoots - 1) & ~1; $i >= 0; $i -= 2) {
+                if ($lambda[$i + 1] !== $this->blockSize) {
+                    $den ^= $this->alphaTo[$this->modNn($lambda[$i + 1] + $i * $root[$j])];
+                }
+            }
+
+            // Apply error to data
+            if ($num1 !== 0 && $loc[$j] >= $this->padding) {
+                $data[$loc[$j] - $this->padding] = $data[$loc[$j] - $this->padding] ^ (
+                    $this->alphaTo[
+                        $this->modNn(
+                            $this->indexOf[$num1] + $this->indexOf[$num2] + $this->blockSize - $this->indexOf[$den]
+                        )
+                    ]
+                );
+            }
+        }
+
+        if (null !== $erasures) {
+            if (count($erasures) < $count) {
+                $erasures->setSize($count);
+            }
+
+            for ($i = 0; $i < $count; $i++) {
+                $erasures[$i] = $loc[$i];
+            }
+        }
+
+        return $count;
+    }
+
+    /**
+     * Computes $x % GF_SIZE, where GF_SIZE is 2**GF_BITS - 1, without a slow divide.
+     */
+    private function modNn(int $x) : int
+    {
+        while ($x >= $this->blockSize) {
+            $x -= $this->blockSize;
+            $x = ($x >> $this->symbolSize) + ($x & $this->blockSize);
+        }
+
+        return $x;
+    }
+}

vendor/bacon/bacon-qr-code/src/Common/Version.php

@@ -0,0 +1,592 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Common;
+
+use BaconQrCode\Exception\InvalidArgumentException;
+use SplFixedArray;
+
+/**
+ * Version representation.
+ */
+final class Version
+{
+    private const VERSION_DECODE_INFO = [
+        0x07c94,
+        0x085bc,
+        0x09a99,
+        0x0a4d3,
+        0x0bbf6,
+        0x0c762,
+        0x0d847,
+        0x0e60d,
+        0x0f928,
+        0x10b78,
+        0x1145d,
+        0x12a17,
+        0x13532,
+        0x149a6,
+        0x15683,
+        0x168c9,
+        0x177ec,
+        0x18ec4,
+        0x191e1,
+        0x1afab,
+        0x1b08e,
+        0x1cc1a,
+        0x1d33f,
+        0x1ed75,
+        0x1f250,
+        0x209d5,
+        0x216f0,
+        0x228ba,
+        0x2379f,
+        0x24b0b,
+        0x2542e,
+        0x26a64,
+        0x27541,
+        0x28c69,
+    ];
+
+    /**
+     * Version number of this version.
+     */
+    private int $versionNumber;
+
+    /**
+     * Alignment pattern centers.
+     *
+     * @var SplFixedArray|array
+     */
+    private SplFixedArray|array $alignmentPatternCenters;
+
+    /**
+     * Error correction blocks.
+     *
+     * @var EcBlocks[]
+     */
+    private array $ecBlocks;
+
+    /**
+     * Total number of codewords.
+     */
+    private null|int|float $totalCodewords;
+
+    /**
+     * Cached version instances.
+     *
+     * @var array<int, self>|null
+     */
+    private static ?array $versions = null;
+
+    /**
+     * @param int[] $alignmentPatternCenters
+     */
+    private function __construct(
+        int $versionNumber,
+        array $alignmentPatternCenters,
+        EcBlocks ...$ecBlocks
+    ) {
+        $this->versionNumber = $versionNumber;
+        $this->alignmentPatternCenters = $alignmentPatternCenters;
+        $this->ecBlocks = $ecBlocks;
+
+        $totalCodewords = 0;
+        $ecCodewords = $ecBlocks[0]->getEcCodewordsPerBlock();
+
+        foreach ($ecBlocks[0]->getEcBlocks() as $ecBlock) {
+            $totalCodewords += $ecBlock->getCount() * ($ecBlock->getDataCodewords() + $ecCodewords);
+        }
+
+        $this->totalCodewords = $totalCodewords;
+    }
+
+    /**
+     * Returns the version number.
+     */
+    public function getVersionNumber() : int
+    {
+        return $this->versionNumber;
+    }
+
+    /**
+     * Returns the alignment pattern centers.
+     *
+     * @return int[]
+     */
+    public function getAlignmentPatternCenters() : array
+    {
+        return $this->alignmentPatternCenters;
+    }
+
+    /**
+     * Returns the total number of codewords.
+     */
+    public function getTotalCodewords() : int
+    {
+        return $this->totalCodewords;
+    }
+
+    /**
+     * Calculates the dimension for the current version.
+     */
+    public function getDimensionForVersion() : int
+    {
+        return 17 + 4 * $this->versionNumber;
+    }
+
+    /**
+     * Returns the number of EC blocks for a specific EC level.
+     */
+    public function getEcBlocksForLevel(ErrorCorrectionLevel $ecLevel) : EcBlocks
+    {
+        return $this->ecBlocks[$ecLevel->ordinal()];
+    }
+
+    /**
+     * Gets a provisional version number for a specific dimension.
+     *
+     * @throws InvalidArgumentException if dimension is not 1 mod 4
+     */
+    public static function getProvisionalVersionForDimension(int $dimension) : self
+    {
+        if (1 !== $dimension % 4) {
+            throw new InvalidArgumentException('Dimension is not 1 mod 4');
+        }
+
+        return self::getVersionForNumber(intdiv($dimension - 17, 4));
+    }
+
+    /**
+     * Gets a version instance for a specific version number.
+     *
+     * @throws InvalidArgumentException if version number is out of range
+     */
+    public static function getVersionForNumber(int $versionNumber) : self
+    {
+        if ($versionNumber < 1 || $versionNumber > 40) {
+            throw new InvalidArgumentException('Version number must be between 1 and 40');
+        }
+
+        return self::versions()[$versionNumber - 1];
+    }
+
+    /**
+     * Decodes version information from an integer and returns the version.
+     */
+    public static function decodeVersionInformation(int $versionBits) : ?self
+    {
+        $bestDifference = PHP_INT_MAX;
+        $bestVersion = 0;
+
+        foreach (self::VERSION_DECODE_INFO as $i => $targetVersion) {
+            if ($targetVersion === $versionBits) {
+                return self::getVersionForNumber($i + 7);
+            }
+
+            $bitsDifference = FormatInformation::numBitsDiffering($versionBits, $targetVersion);
+
+            if ($bitsDifference < $bestDifference) {
+                $bestVersion = $i + 7;
+                $bestDifference = $bitsDifference;
+            }
+        }
+
+        if ($bestDifference <= 3) {
+            return self::getVersionForNumber($bestVersion);
+        }
+
+        return null;
+    }
+
+    /**
+     * Builds the function pattern for the current version.
+     */
+    public function buildFunctionPattern() : BitMatrix
+    {
+        $dimension = $this->getDimensionForVersion();
+        $bitMatrix = new BitMatrix($dimension);
+
+        // Top left finder pattern + separator + format
+        $bitMatrix->setRegion(0, 0, 9, 9);
+        // Top right finder pattern + separator + format
+        $bitMatrix->setRegion($dimension - 8, 0, 8, 9);
+        // Bottom left finder pattern + separator + format
+        $bitMatrix->setRegion(0, $dimension - 8, 9, 8);
+
+        // Alignment patterns
+        $max = count($this->alignmentPatternCenters);
+
+        for ($x = 0; $x < $max; ++$x) {
+            $i = $this->alignmentPatternCenters[$x] - 2;
+
+            for ($y = 0; $y < $max; ++$y) {
+                if (($x === 0 && ($y === 0 || $y === $max - 1)) || ($x === $max - 1 && $y === 0)) {
+                    // No alignment patterns near the three finder paterns
+                    continue;
+                }
+
+                $bitMatrix->setRegion($this->alignmentPatternCenters[$y] - 2, $i, 5, 5);
+            }
+        }
+
+        // Vertical timing pattern
+        $bitMatrix->setRegion(6, 9, 1, $dimension - 17);
+        // Horizontal timing pattern
+        $bitMatrix->setRegion(9, 6, $dimension - 17, 1);
+
+        if ($this->versionNumber > 6) {
+            // Version info, top right
+            $bitMatrix->setRegion($dimension - 11, 0, 3, 6);
+            // Version info, bottom left
+            $bitMatrix->setRegion(0, $dimension - 11, 6, 3);
+        }
+
+        return $bitMatrix;
+    }
+
+    /**
+     * Returns a string representation for the version.
+     */
+    public function __toString() : string
+    {
+        return (string) $this->versionNumber;
+    }
+
+    /**
+     * Build and cache a specific version.
+     *
+     * See ISO 18004:2006 6.5.1 Table 9.
+     *
+     * @return array<int, self>
+     */
+    private static function versions() : array
+    {
+        if (null !== self::$versions) {
+            return self::$versions;
+        }
+
+        return self::$versions = [
+            new self(
+                1,
+                [],
+                new EcBlocks(7, new EcBlock(1, 19)),
+                new EcBlocks(10, new EcBlock(1, 16)),
+                new EcBlocks(13, new EcBlock(1, 13)),
+                new EcBlocks(17, new EcBlock(1, 9))
+            ),
+            new self(
+                2,
+                [6, 18],
+                new EcBlocks(10, new EcBlock(1, 34)),
+                new EcBlocks(16, new EcBlock(1, 28)),
+                new EcBlocks(22, new EcBlock(1, 22)),
+                new EcBlocks(28, new EcBlock(1, 16))
+            ),
+            new self(
+                3,
+                [6, 22],
+                new EcBlocks(15, new EcBlock(1, 55)),
+                new EcBlocks(26, new EcBlock(1, 44)),
+                new EcBlocks(18, new EcBlock(2, 17)),
+                new EcBlocks(22, new EcBlock(2, 13))
+            ),
+            new self(
+                4,
+                [6, 26],
+                new EcBlocks(20, new EcBlock(1, 80)),
+                new EcBlocks(18, new EcBlock(2, 32)),
+                new EcBlocks(26, new EcBlock(2, 24)),
+                new EcBlocks(16, new EcBlock(4, 9))
+            ),
+            new self(
+                5,
+                [6, 30],
+                new EcBlocks(26, new EcBlock(1, 108)),
+                new EcBlocks(24, new EcBlock(2, 43)),
+                new EcBlocks(18, new EcBlock(2, 15), new EcBlock(2, 16)),
+                new EcBlocks(22, new EcBlock(2, 11), new EcBlock(2, 12))
+            ),
+            new self(
+                6,
+                [6, 34],
+                new EcBlocks(18, new EcBlock(2, 68)),
+                new EcBlocks(16, new EcBlock(4, 27)),
+                new EcBlocks(24, new EcBlock(4, 19)),
+                new EcBlocks(28, new EcBlock(4, 15))
+            ),
+            new self(
+                7,
+                [6, 22, 38],
+                new EcBlocks(20, new EcBlock(2, 78)),
+                new EcBlocks(18, new EcBlock(4, 31)),
+                new EcBlocks(18, new EcBlock(2, 14), new EcBlock(4, 15)),
+                new EcBlocks(26, new EcBlock(4, 13), new EcBlock(1, 14))
+            ),
+            new self(
+                8,
+                [6, 24, 42],
+                new EcBlocks(24, new EcBlock(2, 97)),
+                new EcBlocks(22, new EcBlock(2, 38), new EcBlock(2, 39)),
+                new EcBlocks(22, new EcBlock(4, 18), new EcBlock(2, 19)),
+                new EcBlocks(26, new EcBlock(4, 14), new EcBlock(2, 15))
+            ),
+            new self(
+                9,
+                [6, 26, 46],
+                new EcBlocks(30, new EcBlock(2, 116)),
+                new EcBlocks(22, new EcBlock(3, 36), new EcBlock(2, 37)),
+                new EcBlocks(20, new EcBlock(4, 16), new EcBlock(4, 17)),
+                new EcBlocks(24, new EcBlock(4, 12), new EcBlock(4, 13))
+            ),
+            new self(
+                10,
+                [6, 28, 50],
+                new EcBlocks(18, new EcBlock(2, 68), new EcBlock(2, 69)),
+                new EcBlocks(26, new EcBlock(4, 43), new EcBlock(1, 44)),
+                new EcBlocks(24, new EcBlock(6, 19), new EcBlock(2, 20)),
+                new EcBlocks(28, new EcBlock(6, 15), new EcBlock(2, 16))
+            ),
+            new self(
+                11,
+                [6, 30, 54],
+                new EcBlocks(20, new EcBlock(4, 81)),
+                new EcBlocks(30, new EcBlock(1, 50), new EcBlock(4, 51)),
+                new EcBlocks(28, new EcBlock(4, 22), new EcBlock(4, 23)),
+                new EcBlocks(24, new EcBlock(3, 12), new EcBlock(8, 13))
+            ),
+            new self(
+                12,
+                [6, 32, 58],
+                new EcBlocks(24, new EcBlock(2, 92), new EcBlock(2, 93)),
+                new EcBlocks(22, new EcBlock(6, 36), new EcBlock(2, 37)),
+                new EcBlocks(26, new EcBlock(4, 20), new EcBlock(6, 21)),
+                new EcBlocks(28, new EcBlock(7, 14), new EcBlock(4, 15))
+            ),
+            new self(
+                13,
+                [6, 34, 62],
+                new EcBlocks(26, new EcBlock(4, 107)),
+                new EcBlocks(22, new EcBlock(8, 37), new EcBlock(1, 38)),
+                new EcBlocks(24, new EcBlock(8, 20), new EcBlock(4, 21)),
+                new EcBlocks(22, new EcBlock(12, 11), new EcBlock(4, 12))
+            ),
+            new self(
+                14,
+                [6, 26, 46, 66],
+                new EcBlocks(30, new EcBlock(3, 115), new EcBlock(1, 116)),
+                new EcBlocks(24, new EcBlock(4, 40), new EcBlock(5, 41)),
+                new EcBlocks(20, new EcBlock(11, 16), new EcBlock(5, 17)),
+                new EcBlocks(24, new EcBlock(11, 12), new EcBlock(5, 13))
+            ),
+            new self(
+                15,
+                [6, 26, 48, 70],
+                new EcBlocks(22, new EcBlock(5, 87), new EcBlock(1, 88)),
+                new EcBlocks(24, new EcBlock(5, 41), new EcBlock(5, 42)),
+                new EcBlocks(30, new EcBlock(5, 24), new EcBlock(7, 25)),
+                new EcBlocks(24, new EcBlock(11, 12), new EcBlock(7, 13))
+            ),
+            new self(
+                16,
+                [6, 26, 50, 74],
+                new EcBlocks(24, new EcBlock(5, 98), new EcBlock(1, 99)),
+                new EcBlocks(28, new EcBlock(7, 45), new EcBlock(3, 46)),
+                new EcBlocks(24, new EcBlock(15, 19), new EcBlock(2, 20)),
+                new EcBlocks(30, new EcBlock(3, 15), new EcBlock(13, 16))
+            ),
+            new self(
+                17,
+                [6, 30, 54, 78],
+                new EcBlocks(28, new EcBlock(1, 107), new EcBlock(5, 108)),
+                new EcBlocks(28, new EcBlock(10, 46), new EcBlock(1, 47)),
+                new EcBlocks(28, new EcBlock(1, 22), new EcBlock(15, 23)),
+                new EcBlocks(28, new EcBlock(2, 14), new EcBlock(17, 15))
+            ),
+            new self(
+                18,
+                [6, 30, 56, 82],
+                new EcBlocks(30, new EcBlock(5, 120), new EcBlock(1, 121)),
+                new EcBlocks(26, new EcBlock(9, 43), new EcBlock(4, 44)),
+                new EcBlocks(28, new EcBlock(17, 22), new EcBlock(1, 23)),
+                new EcBlocks(28, new EcBlock(2, 14), new EcBlock(19, 15))
+            ),
+            new self(
+                19,
+                [6, 30, 58, 86],
+                new EcBlocks(28, new EcBlock(3, 113), new EcBlock(4, 114)),
+                new EcBlocks(26, new EcBlock(3, 44), new EcBlock(11, 45)),
+                new EcBlocks(26, new EcBlock(17, 21), new EcBlock(4, 22)),
+                new EcBlocks(26, new EcBlock(9, 13), new EcBlock(16, 14))
+            ),
+            new self(
+                20,
+                [6, 34, 62, 90],
+                new EcBlocks(28, new EcBlock(3, 107), new EcBlock(5, 108)),
+                new EcBlocks(26, new EcBlock(3, 41), new EcBlock(13, 42)),
+                new EcBlocks(30, new EcBlock(15, 24), new EcBlock(5, 25)),
+                new EcBlocks(28, new EcBlock(15, 15), new EcBlock(10, 16))
+            ),
+            new self(
+                21,
+                [6, 28, 50, 72, 94],
+                new EcBlocks(28, new EcBlock(4, 116), new EcBlock(4, 117)),
+                new EcBlocks(26, new EcBlock(17, 42)),
+                new EcBlocks(28, new EcBlock(17, 22), new EcBlock(6, 23)),
+                new EcBlocks(30, new EcBlock(19, 16), new EcBlock(6, 17))
+            ),
+            new self(
+                22,
+                [6, 26, 50, 74, 98],
+                new EcBlocks(28, new EcBlock(2, 111), new EcBlock(7, 112)),
+                new EcBlocks(28, new EcBlock(17, 46)),
+                new EcBlocks(30, new EcBlock(7, 24), new EcBlock(16, 25)),
+                new EcBlocks(24, new EcBlock(34, 13))
+            ),
+            new self(
+                23,
+                [6, 30, 54, 78, 102],
+                new EcBlocks(30, new EcBlock(4, 121), new EcBlock(5, 122)),
+                new EcBlocks(28, new EcBlock(4, 47), new EcBlock(14, 48)),
+                new EcBlocks(30, new EcBlock(11, 24), new EcBlock(14, 25)),
+                new EcBlocks(30, new EcBlock(16, 15), new EcBlock(14, 16))
+            ),
+            new self(
+                24,
+                [6, 28, 54, 80, 106],
+                new EcBlocks(30, new EcBlock(6, 117), new EcBlock(4, 118)),
+                new EcBlocks(28, new EcBlock(6, 45), new EcBlock(14, 46)),
+                new EcBlocks(30, new EcBlock(11, 24), new EcBlock(16, 25)),
+                new EcBlocks(30, new EcBlock(30, 16), new EcBlock(2, 17))
+            ),
+            new self(
+                25,
+                [6, 32, 58, 84, 110],
+                new EcBlocks(26, new EcBlock(8, 106), new EcBlock(4, 107)),
+                new EcBlocks(28, new EcBlock(8, 47), new EcBlock(13, 48)),
+                new EcBlocks(30, new EcBlock(7, 24), new EcBlock(22, 25)),
+                new EcBlocks(30, new EcBlock(22, 15), new EcBlock(13, 16))
+            ),
+            new self(
+                26,
+                [6, 30, 58, 86, 114],
+                new EcBlocks(28, new EcBlock(10, 114), new EcBlock(2, 115)),
+                new EcBlocks(28, new EcBlock(19, 46), new EcBlock(4, 47)),
+                new EcBlocks(28, new EcBlock(28, 22), new EcBlock(6, 23)),
+                new EcBlocks(30, new EcBlock(33, 16), new EcBlock(4, 17))
+            ),
+            new self(
+                27,
+                [6, 34, 62, 90, 118],
+                new EcBlocks(30, new EcBlock(8, 122), new EcBlock(4, 123)),
+                new EcBlocks(28, new EcBlock(22, 45), new EcBlock(3, 46)),
+                new EcBlocks(30, new EcBlock(8, 23), new EcBlock(26, 24)),
+                new EcBlocks(30, new EcBlock(12, 15), new EcBlock(28, 16))
+            ),
+            new self(
+                28,
+                [6, 26, 50, 74, 98, 122],
+                new EcBlocks(30, new EcBlock(3, 117), new EcBlock(10, 118)),
+                new EcBlocks(28, new EcBlock(3, 45), new EcBlock(23, 46)),
+                new EcBlocks(30, new EcBlock(4, 24), new EcBlock(31, 25)),
+                new EcBlocks(30, new EcBlock(11, 15), new EcBlock(31, 16))
+            ),
+            new self(
+                29,
+                [6, 30, 54, 78, 102, 126],
+                new EcBlocks(30, new EcBlock(7, 116), new EcBlock(7, 117)),
+                new EcBlocks(28, new EcBlock(21, 45), new EcBlock(7, 46)),
+                new EcBlocks(30, new EcBlock(1, 23), new EcBlock(37, 24)),
+                new EcBlocks(30, new EcBlock(19, 15), new EcBlock(26, 16))
+            ),
+            new self(
+                30,
+                [6, 26, 52, 78, 104, 130],
+                new EcBlocks(30, new EcBlock(5, 115), new EcBlock(10, 116)),
+                new EcBlocks(28, new EcBlock(19, 47), new EcBlock(10, 48)),
+                new EcBlocks(30, new EcBlock(15, 24), new EcBlock(25, 25)),
+                new EcBlocks(30, new EcBlock(23, 15), new EcBlock(25, 16))
+            ),
+            new self(
+                31,
+                [6, 30, 56, 82, 108, 134],
+                new EcBlocks(30, new EcBlock(13, 115), new EcBlock(3, 116)),
+                new EcBlocks(28, new EcBlock(2, 46), new EcBlock(29, 47)),
+                new EcBlocks(30, new EcBlock(42, 24), new EcBlock(1, 25)),
+                new EcBlocks(30, new EcBlock(23, 15), new EcBlock(28, 16))
+            ),
+            new self(
+                32,
+                [6, 34, 60, 86, 112, 138],
+                new EcBlocks(30, new EcBlock(17, 115)),
+                new EcBlocks(28, new EcBlock(10, 46), new EcBlock(23, 47)),
+                new EcBlocks(30, new EcBlock(10, 24), new EcBlock(35, 25)),
+                new EcBlocks(30, new EcBlock(19, 15), new EcBlock(35, 16))
+            ),
+            new self(
+                33,
+                [6, 30, 58, 86, 114, 142],
+                new EcBlocks(30, new EcBlock(17, 115), new EcBlock(1, 116)),
+                new EcBlocks(28, new EcBlock(14, 46), new EcBlock(21, 47)),
+                new EcBlocks(30, new EcBlock(29, 24), new EcBlock(19, 25)),
+                new EcBlocks(30, new EcBlock(11, 15), new EcBlock(46, 16))
+            ),
+            new self(
+                34,
+                [6, 34, 62, 90, 118, 146],
+                new EcBlocks(30, new EcBlock(13, 115), new EcBlock(6, 116)),
+                new EcBlocks(28, new EcBlock(14, 46), new EcBlock(23, 47)),
+                new EcBlocks(30, new EcBlock(44, 24), new EcBlock(7, 25)),
+                new EcBlocks(30, new EcBlock(59, 16), new EcBlock(1, 17))
+            ),
+            new self(
+                35,
+                [6, 30, 54, 78, 102, 126, 150],
+                new EcBlocks(30, new EcBlock(12, 121), new EcBlock(7, 122)),
+                new EcBlocks(28, new EcBlock(12, 47), new EcBlock(26, 48)),
+                new EcBlocks(30, new EcBlock(39, 24), new EcBlock(14, 25)),
+                new EcBlocks(30, new EcBlock(22, 15), new EcBlock(41, 16))
+            ),
+            new self(
+                36,
+                [6, 24, 50, 76, 102, 128, 154],
+                new EcBlocks(30, new EcBlock(6, 121), new EcBlock(14, 122)),
+                new EcBlocks(28, new EcBlock(6, 47), new EcBlock(34, 48)),
+                new EcBlocks(30, new EcBlock(46, 24), new EcBlock(10, 25)),
+                new EcBlocks(30, new EcBlock(2, 15), new EcBlock(64, 16))
+            ),
+            new self(
+                37,
+                [6, 28, 54, 80, 106, 132, 158],
+                new EcBlocks(30, new EcBlock(17, 122), new EcBlock(4, 123)),
+                new EcBlocks(28, new EcBlock(29, 46), new EcBlock(14, 47)),
+                new EcBlocks(30, new EcBlock(49, 24), new EcBlock(10, 25)),
+                new EcBlocks(30, new EcBlock(24, 15), new EcBlock(46, 16))
+            ),
+            new self(
+                38,
+                [6, 32, 58, 84, 110, 136, 162],
+                new EcBlocks(30, new EcBlock(4, 122), new EcBlock(18, 123)),
+                new EcBlocks(28, new EcBlock(13, 46), new EcBlock(32, 47)),
+                new EcBlocks(30, new EcBlock(48, 24), new EcBlock(14, 25)),
+                new EcBlocks(30, new EcBlock(42, 15), new EcBlock(32, 16))
+            ),
+            new self(
+                39,
+                [6, 26, 54, 82, 110, 138, 166],
+                new EcBlocks(30, new EcBlock(20, 117), new EcBlock(4, 118)),
+                new EcBlocks(28, new EcBlock(40, 47), new EcBlock(7, 48)),
+                new EcBlocks(30, new EcBlock(43, 24), new EcBlock(22, 25)),
+                new EcBlocks(30, new EcBlock(10, 15), new EcBlock(67, 16))
+            ),
+            new self(
+                40,
+                [6, 30, 58, 86, 114, 142, 170],
+                new EcBlocks(30, new EcBlock(19, 118), new EcBlock(6, 119)),
+                new EcBlocks(28, new EcBlock(18, 47), new EcBlock(31, 48)),
+                new EcBlocks(30, new EcBlock(34, 24), new EcBlock(34, 25)),
+                new EcBlocks(30, new EcBlock(20, 15), new EcBlock(61, 16))
+            ),
+        ];
+    }
+}

vendor/bacon/bacon-qr-code/src/Encoder/BlockPair.php

@@ -0,0 +1,44 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Encoder;
+
+use SplFixedArray;
+
+/**
+ * Block pair.
+ */
+final class BlockPair
+{
+    /**
+     * Creates a new block pair.
+     *
+     * @param SplFixedArray<int> $dataBytes Data bytes in the block.
+     * @param SplFixedArray<int> $errorCorrectionBytes Error correction bytes in the block.
+     */
+    public function __construct(
+        private readonly SplFixedArray $dataBytes,
+        private readonly SplFixedArray $errorCorrectionBytes
+    ) {
+    }
+
+    /**
+     * Gets the data bytes.
+     *
+     * @return SplFixedArray<int>
+     */
+    public function getDataBytes() : SplFixedArray
+    {
+        return $this->dataBytes;
+    }
+
+    /**
+     * Gets the error correction bytes.
+     *
+     * @return SplFixedArray<int>
+     */
+    public function getErrorCorrectionBytes() : SplFixedArray
+    {
+        return $this->errorCorrectionBytes;
+    }
+}

vendor/bacon/bacon-qr-code/src/Encoder/ByteMatrix.php

@@ -0,0 +1,134 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Encoder;
+
+use SplFixedArray;
+use Traversable;
+
+/**
+ * Byte matrix.
+ */
+final class ByteMatrix
+{
+    /**
+     * Bytes in the matrix, represented as array.
+     *
+     * @var SplFixedArray<SplFixedArray<int>>
+     */
+    private SplFixedArray $bytes;
+
+    public function __construct(private readonly int $width, private readonly int $height)
+    {
+        $this->bytes = new SplFixedArray($height);
+
+        for ($y = 0; $y < $height; ++$y) {
+            $this->bytes[$y] = SplFixedArray::fromArray(array_fill(0, $width, 0));
+        }
+    }
+
+    /**
+     * Gets the width of the matrix.
+     */
+    public function getWidth() : int
+    {
+        return $this->width;
+    }
+
+    /**
+     * Gets the height of the matrix.
+     */
+    public function getHeight() : int
+    {
+        return $this->height;
+    }
+
+    /**
+     * Gets the internal representation of the matrix.
+     *
+     * @return SplFixedArray<SplFixedArray<int>>
+     */
+    public function getArray() : SplFixedArray
+    {
+        return $this->bytes;
+    }
+
+    /**
+     * @return Traversable<int>
+     */
+    public function getBytes() : Traversable
+    {
+        foreach ($this->bytes as $row) {
+            foreach ($row as $byte) {
+                yield $byte;
+            }
+        }
+    }
+
+    /**
+     * Gets the byte for a specific position.
+     */
+    public function get(int $x, int $y) : int
+    {
+        return $this->bytes[$y][$x];
+    }
+
+    /**
+     * Sets the byte for a specific position.
+     */
+    public function set(int $x, int $y, int $value) : void
+    {
+        $this->bytes[$y][$x] = $value;
+    }
+
+    /**
+     * Clears the matrix with a specific value.
+     */
+    public function clear(int $value) : void
+    {
+        for ($y = 0; $y < $this->height; ++$y) {
+            for ($x = 0; $x < $this->width; ++$x) {
+                $this->bytes[$y][$x] = $value;
+            }
+        }
+    }
+
+    public function __clone()
+    {
+        $this->bytes = clone $this->bytes;
+
+        foreach ($this->bytes as $index => $row) {
+            $this->bytes[$index] = clone $row;
+        }
+    }
+
+    /**
+     * Returns a string representation of the matrix.
+     */
+    public function __toString() : string
+    {
+        $result = '';
+
+        for ($y = 0; $y < $this->height; $y++) {
+            for ($x = 0; $x < $this->width; $x++) {
+                switch ($this->bytes[$y][$x]) {
+                    case 0:
+                        $result .= ' 0';
+                        break;
+
+                    case 1:
+                        $result .= ' 1';
+                        break;
+
+                    default:
+                        $result .= '  ';
+                        break;
+                }
+            }
+
+            $result .= "\n";
+        }
+
+        return $result;
+    }
+}

vendor/bacon/bacon-qr-code/src/Encoder/Encoder.php

@@ -0,0 +1,679 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Encoder;
+
+use BaconQrCode\Common\BitArray;
+use BaconQrCode\Common\CharacterSetEci;
+use BaconQrCode\Common\ErrorCorrectionLevel;
+use BaconQrCode\Common\Mode;
+use BaconQrCode\Common\ReedSolomonCodec;
+use BaconQrCode\Common\Version;
+use BaconQrCode\Exception\WriterException;
+use SplFixedArray;
+
+/**
+ * Encoder.
+ */
+final class Encoder
+{
+    /**
+     * Default byte encoding.
+     */
+    public const DEFAULT_BYTE_MODE_ENCODING = 'ISO-8859-1';
+
+    /** @deprecated use DEFAULT_BYTE_MODE_ENCODING */
+    public const DEFAULT_BYTE_MODE_ECODING = self::DEFAULT_BYTE_MODE_ENCODING;
+
+    /**
+     * The original table is defined in the table 5 of JISX0510:2004 (p.19).
+     */
+    private const ALPHANUMERIC_TABLE = [
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,  // 0x00-0x0f
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,  // 0x10-0x1f
+        36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,  // 0x20-0x2f
+        0,   1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,  // 0x30-0x3f
+        -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,  // 0x40-0x4f
+        25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,  // 0x50-0x5f
+    ];
+
+    /**
+     * Codec cache.
+     *
+     * @var array<string,ReedSolomonCodec>
+     */
+    private static array $codecs = [];
+
+    /**
+     * Encodes "content" with the error correction level "ecLevel".
+     */
+    public static function encode(
+        string $content,
+        ErrorCorrectionLevel $ecLevel,
+        string $encoding = self::DEFAULT_BYTE_MODE_ENCODING,
+        ?Version $forcedVersion = null,
+        // Barcode scanner might not be able to read the encoded message of the QR code with the prefix ECI of UTF-8
+        bool $prefixEci = true
+    ) : QrCode {
+        // Pick an encoding mode appropriate for the content. Note that this
+        // will not attempt to use multiple modes / segments even if that were
+        // more efficient. Would be nice.
+        $mode = self::chooseMode($content, $encoding);
+
+        // This will store the header information, like mode and length, as well
+        // as "header" segments like an ECI segment.
+        $headerBits = new BitArray();
+
+        // Append ECI segment if applicable
+        if ($prefixEci && Mode::BYTE() === $mode && self::DEFAULT_BYTE_MODE_ENCODING !== $encoding) {
+            $eci = CharacterSetEci::getCharacterSetEciByName($encoding);
+
+            if (null !== $eci) {
+                self::appendEci($eci, $headerBits);
+            }
+        }
+
+        // (With ECI in place,) Write the mode marker
+        self::appendModeInfo($mode, $headerBits);
+
+        // Collect data within the main segment, separately, to count its size
+        // if needed. Don't add it to main payload yet.
+        $dataBits = new BitArray();
+        self::appendBytes($content, $mode, $dataBits, $encoding);
+
+        // Hard part: need to know version to know how many bits length takes.
+        // But need to know how many bits it takes to know version. First we
+        // take a guess at version by assuming version will be the minimum, 1:
+        $provisionalBitsNeeded = $headerBits->getSize()
+            + $mode->getCharacterCountBits(Version::getVersionForNumber(1))
+            + $dataBits->getSize();
+        $provisionalVersion = self::chooseVersion($provisionalBitsNeeded, $ecLevel);
+
+        // Use that guess to calculate the right version. I am still not sure
+        // this works in 100% of cases.
+        $bitsNeeded = $headerBits->getSize()
+            + $mode->getCharacterCountBits($provisionalVersion)
+            + $dataBits->getSize();
+        $version = self::chooseVersion($bitsNeeded, $ecLevel);
+
+        if (null !== $forcedVersion) {
+            // Forced version check
+            if ($version->getVersionNumber() <= $forcedVersion->getVersionNumber()) {
+                // Calculated minimum version is same or equal as forced version
+                $version = $forcedVersion;
+            } else {
+                throw new WriterException(
+                    'Invalid version! Calculated version: '
+                    . $version->getVersionNumber()
+                    . ', requested version: '
+                    . $forcedVersion->getVersionNumber()
+                );
+            }
+        }
+
+        $headerAndDataBits = new BitArray();
+        $headerAndDataBits->appendBitArray($headerBits);
+
+        // Find "length" of main segment and write it.
+        $numLetters = (Mode::BYTE() === $mode ? $dataBits->getSizeInBytes() : strlen($content));
+        self::appendLengthInfo($numLetters, $version, $mode, $headerAndDataBits);
+
+        // Put data together into the overall payload.
+        $headerAndDataBits->appendBitArray($dataBits);
+        $ecBlocks = $version->getEcBlocksForLevel($ecLevel);
+        $numDataBytes = $version->getTotalCodewords() - $ecBlocks->getTotalEcCodewords();
+
+        // Terminate the bits properly.
+        self::terminateBits($numDataBytes, $headerAndDataBits);
+
+        // Interleave data bits with error correction code.
+        $finalBits = self::interleaveWithEcBytes(
+            $headerAndDataBits,
+            $version->getTotalCodewords(),
+            $numDataBytes,
+            $ecBlocks->getNumBlocks()
+        );
+
+        // Choose the mask pattern.
+        $dimension = $version->getDimensionForVersion();
+        $matrix = new ByteMatrix($dimension, $dimension);
+        $maskPattern = self::chooseMaskPattern($finalBits, $ecLevel, $version, $matrix);
+
+        // Build the matrix.
+        MatrixUtil::buildMatrix($finalBits, $ecLevel, $version, $maskPattern, $matrix);
+
+        return new QrCode($mode, $ecLevel, $version, $maskPattern, $matrix);
+    }
+
+    /**
+     * Gets the alphanumeric code for a byte.
+     */
+    private static function getAlphanumericCode(int $code) : int
+    {
+        if (isset(self::ALPHANUMERIC_TABLE[$code])) {
+            return self::ALPHANUMERIC_TABLE[$code];
+        }
+
+        return -1;
+    }
+
+    /**
+     * Chooses the best mode for a given content.
+     */
+    private static function chooseMode(string $content, ?string $encoding = null) : Mode
+    {
+        if (null !== $encoding && 0 === strcasecmp($encoding, 'SHIFT-JIS')) {
+            return self::isOnlyDoubleByteKanji($content) ? Mode::KANJI() : Mode::BYTE();
+        }
+
+        $hasNumeric = false;
+        $hasAlphanumeric = false;
+        $contentLength = strlen($content);
+
+        for ($i = 0; $i < $contentLength; ++$i) {
+            $char = $content[$i];
+
+            if (ctype_digit($char)) {
+                $hasNumeric = true;
+            } elseif (-1 !== self::getAlphanumericCode(ord($char))) {
+                $hasAlphanumeric = true;
+            } else {
+                return Mode::BYTE();
+            }
+        }
+
+        if ($hasAlphanumeric) {
+            return Mode::ALPHANUMERIC();
+        } elseif ($hasNumeric) {
+            return Mode::NUMERIC();
+        }
+
+        return Mode::BYTE();
+    }
+
+    /**
+     * Calculates the mask penalty for a matrix.
+     */
+    private static function calculateMaskPenalty(ByteMatrix $matrix) : int
+    {
+        return (
+            MaskUtil::applyMaskPenaltyRule1($matrix)
+            + MaskUtil::applyMaskPenaltyRule2($matrix)
+            + MaskUtil::applyMaskPenaltyRule3($matrix)
+            + MaskUtil::applyMaskPenaltyRule4($matrix)
+        );
+    }
+
+    /**
+     * Checks if content only consists of double-byte kanji characters.
+     */
+    private static function isOnlyDoubleByteKanji(string $content) : bool
+    {
+        $bytes = @iconv('utf-8', 'SHIFT-JIS', $content);
+
+        if (false === $bytes) {
+            return false;
+        }
+
+        $length = strlen($bytes);
+
+        if (0 !== $length % 2) {
+            return false;
+        }
+
+        for ($i = 0; $i < $length; $i += 2) {
+            $byte = ord($bytes[$i]) & 0xff;
+
+            if (($byte < 0x81 || $byte > 0x9f) && $byte < 0xe0 || $byte > 0xeb) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Chooses the best mask pattern for a matrix.
+     */
+    private static function chooseMaskPattern(
+        BitArray $bits,
+        ErrorCorrectionLevel $ecLevel,
+        Version $version,
+        ByteMatrix $matrix
+    ) : int {
+        $minPenalty = PHP_INT_MAX;
+        $bestMaskPattern = -1;
+
+        for ($maskPattern = 0; $maskPattern < QrCode::NUM_MASK_PATTERNS; ++$maskPattern) {
+            MatrixUtil::buildMatrix($bits, $ecLevel, $version, $maskPattern, $matrix);
+            $penalty = self::calculateMaskPenalty($matrix);
+
+            if ($penalty < $minPenalty) {
+                $minPenalty = $penalty;
+                $bestMaskPattern = $maskPattern;
+            }
+        }
+
+        return $bestMaskPattern;
+    }
+
+    /**
+     * Chooses the best version for the input.
+     *
+     * @throws WriterException if data is too big
+     */
+    private static function chooseVersion(int $numInputBits, ErrorCorrectionLevel $ecLevel) : Version
+    {
+        for ($versionNum = 1; $versionNum <= 40; ++$versionNum) {
+            $version = Version::getVersionForNumber($versionNum);
+            $numBytes = $version->getTotalCodewords();
+
+            $ecBlocks = $version->getEcBlocksForLevel($ecLevel);
+            $numEcBytes = $ecBlocks->getTotalEcCodewords();
+
+            $numDataBytes = $numBytes - $numEcBytes;
+            $totalInputBytes = intdiv($numInputBits + 8, 8);
+
+            if ($numDataBytes >= $totalInputBytes) {
+                return $version;
+            }
+        }
+
+        throw new WriterException('Data too big');
+    }
+
+    /**
+     * Terminates the bits in a bit array.
+     *
+     * @throws WriterException if data bits cannot fit in the QR code
+     * @throws WriterException if bits size does not equal the capacity
+     */
+    private static function terminateBits(int $numDataBytes, BitArray $bits) : void
+    {
+        $capacity = $numDataBytes << 3;
+
+        if ($bits->getSize() > $capacity) {
+            throw new WriterException('Data bits cannot fit in the QR code');
+        }
+
+        for ($i = 0; $i < 4 && $bits->getSize() < $capacity; ++$i) {
+            $bits->appendBit(false);
+        }
+
+        $numBitsInLastByte = $bits->getSize() & 0x7;
+
+        if ($numBitsInLastByte > 0) {
+            for ($i = $numBitsInLastByte; $i < 8; ++$i) {
+                $bits->appendBit(false);
+            }
+        }
+
+        $numPaddingBytes = $numDataBytes - $bits->getSizeInBytes();
+
+        for ($i = 0; $i < $numPaddingBytes; ++$i) {
+            $bits->appendBits(0 === ($i & 0x1) ? 0xec : 0x11, 8);
+        }
+
+        if ($bits->getSize() !== $capacity) {
+            throw new WriterException('Bits size does not equal capacity');
+        }
+    }
+
+    /**
+     * Gets number of data- and EC bytes for a block ID.
+     *
+     * @return int[]
+     * @throws WriterException if block ID is too large
+     * @throws WriterException if EC bytes mismatch
+     * @throws WriterException if RS blocks mismatch
+     * @throws WriterException if total bytes mismatch
+     */
+    private static function getNumDataBytesAndNumEcBytesForBlockId(
+        int $numTotalBytes,
+        int $numDataBytes,
+        int $numRsBlocks,
+        int $blockId
+    ) : array {
+        if ($blockId >= $numRsBlocks) {
+            throw new WriterException('Block ID too large');
+        }
+
+        $numRsBlocksInGroup2 = $numTotalBytes % $numRsBlocks;
+        $numRsBlocksInGroup1 = $numRsBlocks - $numRsBlocksInGroup2;
+        $numTotalBytesInGroup1 = intdiv($numTotalBytes, $numRsBlocks);
+        $numTotalBytesInGroup2 = $numTotalBytesInGroup1 + 1;
+        $numDataBytesInGroup1 = intdiv($numDataBytes, $numRsBlocks);
+        $numDataBytesInGroup2 = $numDataBytesInGroup1 + 1;
+        $numEcBytesInGroup1 = $numTotalBytesInGroup1 - $numDataBytesInGroup1;
+        $numEcBytesInGroup2 = $numTotalBytesInGroup2 - $numDataBytesInGroup2;
+
+        if ($numEcBytesInGroup1 !== $numEcBytesInGroup2) {
+            throw new WriterException('EC bytes mismatch');
+        }
+
+        if ($numRsBlocks !== $numRsBlocksInGroup1 + $numRsBlocksInGroup2) {
+            throw new WriterException('RS blocks mismatch');
+        }
+
+        if ($numTotalBytes !==
+            (($numDataBytesInGroup1 + $numEcBytesInGroup1) * $numRsBlocksInGroup1)
+            + (($numDataBytesInGroup2 + $numEcBytesInGroup2) * $numRsBlocksInGroup2)
+        ) {
+            throw new WriterException('Total bytes mismatch');
+        }
+
+        if ($blockId < $numRsBlocksInGroup1) {
+            return [$numDataBytesInGroup1, $numEcBytesInGroup1];
+        } else {
+            return [$numDataBytesInGroup2, $numEcBytesInGroup2];
+        }
+    }
+
+    /**
+     * Interleaves data with EC bytes.
+     *
+     * @throws WriterException if number of bits and data bytes does not match
+     * @throws WriterException if data bytes does not match offset
+     * @throws WriterException if an interleaving error occurs
+     */
+    private static function interleaveWithEcBytes(
+        BitArray $bits,
+        int $numTotalBytes,
+        int $numDataBytes,
+        int $numRsBlocks
+    ) : BitArray {
+        if ($bits->getSizeInBytes() !== $numDataBytes) {
+            throw new WriterException('Number of bits and data bytes does not match');
+        }
+
+        $dataBytesOffset = 0;
+        $maxNumDataBytes = 0;
+        $maxNumEcBytes   = 0;
+
+        $blocks = new SplFixedArray($numRsBlocks);
+
+        for ($i = 0; $i < $numRsBlocks; ++$i) {
+            list($numDataBytesInBlock, $numEcBytesInBlock) = self::getNumDataBytesAndNumEcBytesForBlockId(
+                $numTotalBytes,
+                $numDataBytes,
+                $numRsBlocks,
+                $i
+            );
+
+            $size = $numDataBytesInBlock;
+            $dataBytes = $bits->toBytes(8 * $dataBytesOffset, $size);
+            $ecBytes = self::generateEcBytes($dataBytes, $numEcBytesInBlock);
+            $blocks[$i] = new BlockPair($dataBytes, $ecBytes);
+
+            $maxNumDataBytes = max($maxNumDataBytes, $size);
+            $maxNumEcBytes = max($maxNumEcBytes, count($ecBytes));
+            $dataBytesOffset += $numDataBytesInBlock;
+        }
+
+        if ($numDataBytes !== $dataBytesOffset) {
+            throw new WriterException('Data bytes does not match offset');
+        }
+
+        $result = new BitArray();
+
+        for ($i = 0; $i < $maxNumDataBytes; ++$i) {
+            foreach ($blocks as $block) {
+                $dataBytes = $block->getDataBytes();
+
+                if ($i < count($dataBytes)) {
+                    $result->appendBits($dataBytes[$i], 8);
+                }
+            }
+        }
+
+        for ($i = 0; $i < $maxNumEcBytes; ++$i) {
+            foreach ($blocks as $block) {
+                $ecBytes = $block->getErrorCorrectionBytes();
+
+                if ($i < count($ecBytes)) {
+                    $result->appendBits($ecBytes[$i], 8);
+                }
+            }
+        }
+
+        if ($numTotalBytes !== $result->getSizeInBytes()) {
+            throw new WriterException(
+                'Interleaving error: ' . $numTotalBytes . ' and ' . $result->getSizeInBytes() . ' differ'
+            );
+        }
+
+        return $result;
+    }
+
+    /**
+     * Generates EC bytes for given data.
+     *
+     * @param  SplFixedArray<int> $dataBytes
+     * @return SplFixedArray<int>
+     */
+    private static function generateEcBytes(SplFixedArray $dataBytes, int $numEcBytesInBlock) : SplFixedArray
+    {
+        $numDataBytes = count($dataBytes);
+        $toEncode = new SplFixedArray($numDataBytes + $numEcBytesInBlock);
+
+        for ($i = 0; $i < $numDataBytes; $i++) {
+            $toEncode[$i] = $dataBytes[$i] & 0xff;
+        }
+
+        $ecBytes = new SplFixedArray($numEcBytesInBlock);
+        $codec = self::getCodec($numDataBytes, $numEcBytesInBlock);
+        $codec->encode($toEncode, $ecBytes);
+
+        return $ecBytes;
+    }
+
+    /**
+     * Gets an RS codec and caches it.
+     */
+    private static function getCodec(int $numDataBytes, int $numEcBytesInBlock) : ReedSolomonCodec
+    {
+        $cacheId = $numDataBytes . '-' . $numEcBytesInBlock;
+
+        if (isset(self::$codecs[$cacheId])) {
+            return self::$codecs[$cacheId];
+        }
+
+        return self::$codecs[$cacheId] = new ReedSolomonCodec(
+            8,
+            0x11d,
+            0,
+            1,
+            $numEcBytesInBlock,
+            255 - $numDataBytes - $numEcBytesInBlock
+        );
+    }
+
+    /**
+     * Appends mode information to a bit array.
+     */
+    private static function appendModeInfo(Mode $mode, BitArray $bits) : void
+    {
+        $bits->appendBits($mode->getBits(), 4);
+    }
+
+    /**
+     * Appends length information to a bit array.
+     *
+     * @throws WriterException if num letters is bigger than expected
+     */
+    private static function appendLengthInfo(int $numLetters, Version $version, Mode $mode, BitArray $bits) : void
+    {
+        $numBits = $mode->getCharacterCountBits($version);
+
+        if ($numLetters >= (1 << $numBits)) {
+            throw new WriterException($numLetters . ' is bigger than ' . ((1 << $numBits) - 1));
+        }
+
+        $bits->appendBits($numLetters, $numBits);
+    }
+
+    /**
+     * Appends bytes to a bit array in a specific mode.
+     *
+     * @throws WriterException if an invalid mode was supplied
+     */
+    private static function appendBytes(string $content, Mode $mode, BitArray $bits, string $encoding) : void
+    {
+        switch ($mode) {
+            case Mode::NUMERIC():
+                self::appendNumericBytes($content, $bits);
+                break;
+
+            case Mode::ALPHANUMERIC():
+                self::appendAlphanumericBytes($content, $bits);
+                break;
+
+            case Mode::BYTE():
+                self::append8BitBytes($content, $bits, $encoding);
+                break;
+
+            case Mode::KANJI():
+                self::appendKanjiBytes($content, $bits);
+                break;
+
+            default:
+                throw new WriterException('Invalid mode: ' . $mode);
+        }
+    }
+
+    /**
+     * Appends numeric bytes to a bit array.
+     */
+    private static function appendNumericBytes(string $content, BitArray $bits) : void
+    {
+        $length = strlen($content);
+        $i = 0;
+
+        while ($i < $length) {
+            $num1 = (int) $content[$i];
+
+            if ($i + 2 < $length) {
+                // Encode three numeric letters in ten bits.
+                $num2 = (int) $content[$i + 1];
+                $num3 = (int) $content[$i + 2];
+                $bits->appendBits($num1 * 100 + $num2 * 10 + $num3, 10);
+                $i += 3;
+            } elseif ($i + 1 < $length) {
+                // Encode two numeric letters in seven bits.
+                $num2 = (int) $content[$i + 1];
+                $bits->appendBits($num1 * 10 + $num2, 7);
+                $i += 2;
+            } else {
+                // Encode one numeric letter in four bits.
+                $bits->appendBits($num1, 4);
+                ++$i;
+            }
+        }
+    }
+
+    /**
+     * Appends alpha-numeric bytes to a bit array.
+     *
+     * @throws WriterException if an invalid alphanumeric code was found
+     */
+    private static function appendAlphanumericBytes(string $content, BitArray $bits) : void
+    {
+        $length = strlen($content);
+        $i = 0;
+
+        while ($i < $length) {
+            $code1 = self::getAlphanumericCode(ord($content[$i]));
+
+            if (-1 === $code1) {
+                throw new WriterException('Invalid alphanumeric code');
+            }
+
+            if ($i + 1 < $length) {
+                $code2 = self::getAlphanumericCode(ord($content[$i + 1]));
+
+                if (-1 === $code2) {
+                    throw new WriterException('Invalid alphanumeric code');
+                }
+
+                // Encode two alphanumeric letters in 11 bits.
+                $bits->appendBits($code1 * 45 + $code2, 11);
+                $i += 2;
+            } else {
+                // Encode one alphanumeric letter in six bits.
+                $bits->appendBits($code1, 6);
+                ++$i;
+            }
+        }
+    }
+
+    /**
+     * Appends regular 8-bit bytes to a bit array.
+     *
+     * @throws WriterException if content cannot be encoded to target encoding
+     */
+    private static function append8BitBytes(string $content, BitArray $bits, string $encoding) : void
+    {
+        $bytes = @iconv('utf-8', $encoding, $content);
+
+        if (false === $bytes) {
+            throw new WriterException('Could not encode content to ' . $encoding);
+        }
+
+        $length = strlen($bytes);
+
+        for ($i = 0; $i < $length; $i++) {
+            $bits->appendBits(ord($bytes[$i]), 8);
+        }
+    }
+
+    /**
+     * Appends KANJI bytes to a bit array.
+     *
+     * @throws WriterException if content does not seem to be encoded in SHIFT-JIS
+     * @throws WriterException if an invalid byte sequence occurs
+     */
+    private static function appendKanjiBytes(string $content, BitArray $bits) : void
+    {
+        $bytes = @iconv('utf-8', 'SHIFT-JIS', $content);
+
+        if (false === $bytes) {
+            throw new WriterException('Content could not be converted to SHIFT-JIS');
+        }
+
+        if (strlen($bytes) % 2 > 0) {
+            // We just do a simple length check here. The for loop will check
+            // individual characters.
+            throw new WriterException('Content does not seem to be encoded in SHIFT-JIS');
+        }
+
+        $length = strlen($bytes);
+
+        for ($i = 0; $i < $length; $i += 2) {
+            $byte1 = ord($bytes[$i]) & 0xff;
+            $byte2 = ord($bytes[$i + 1]) & 0xff;
+            $code = ($byte1 << 8) | $byte2;
+
+            if ($code >= 0x8140 && $code <= 0x9ffc) {
+                $subtracted = $code - 0x8140;
+            } elseif ($code >= 0xe040 && $code <= 0xebbf) {
+                $subtracted = $code - 0xc140;
+            } else {
+                throw new WriterException('Invalid byte sequence');
+            }
+
+            $encoded = (($subtracted >> 8) * 0xc0) + ($subtracted & 0xff);
+
+            $bits->appendBits($encoded, 13);
+        }
+    }
+
+    /**
+     * Appends ECI information to a bit array.
+     */
+    private static function appendEci(CharacterSetEci $eci, BitArray $bits) : void
+    {
+        $mode = Mode::ECI();
+        $bits->appendBits($mode->getBits(), 4);
+        $bits->appendBits($eci->getValue(), 8);
+    }
+}

vendor/bacon/bacon-qr-code/src/Encoder/MaskUtil.php

@@ -0,0 +1,271 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Encoder;
+
+use BaconQrCode\Common\BitUtils;
+use BaconQrCode\Exception\InvalidArgumentException;
+
+/**
+ * Mask utility.
+ */
+final class MaskUtil
+{
+    /**#@+
+     * Penalty weights from section 6.8.2.1
+     */
+    public const N1 = 3;
+    public const N2 = 3;
+    public const N3 = 40;
+    public const N4 = 10;
+    /**#@-*/
+
+    private function __construct()
+    {
+    }
+
+    /**
+     * Applies mask penalty rule 1 and returns the penalty.
+     *
+     * Finds repetitive cells with the same color and gives penalty to them.
+     * Example: 00000 or 11111.
+     */
+    public static function applyMaskPenaltyRule1(ByteMatrix $matrix) : int
+    {
+        return (
+            self::applyMaskPenaltyRule1Internal($matrix, true)
+            + self::applyMaskPenaltyRule1Internal($matrix, false)
+        );
+    }
+
+    /**
+     * Applies mask penalty rule 2 and returns the penalty.
+     *
+     * Finds 2x2 blocks with the same color and gives penalty to them. This is
+     * actually equivalent to the spec's rule, which is to find MxN blocks and
+     * give a penalty proportional to (M-1)x(N-1), because this is the number of
+     * 2x2 blocks inside such a block.
+     */
+    public static function applyMaskPenaltyRule2(ByteMatrix $matrix) : int
+    {
+        $penalty = 0;
+        $array = $matrix->getArray();
+        $width = $matrix->getWidth();
+        $height = $matrix->getHeight();
+
+        for ($y = 0; $y < $height - 1; ++$y) {
+            for ($x = 0; $x < $width - 1; ++$x) {
+                $value = $array[$y][$x];
+
+                if ($value === $array[$y][$x + 1]
+                    && $value === $array[$y + 1][$x]
+                    && $value === $array[$y + 1][$x + 1]
+                ) {
+                    ++$penalty;
+                }
+            }
+        }
+
+        return self::N2 * $penalty;
+    }
+
+    /**
+     * Applies mask penalty rule 3 and returns the penalty.
+     *
+     * Finds consecutive cells of 00001011101 or 10111010000, and gives penalty
+     * to them. If we find patterns like 000010111010000, we give penalties
+     * twice (i.e. 40 * 2).
+     */
+    public static function applyMaskPenaltyRule3(ByteMatrix $matrix) : int
+    {
+        $penalty = 0;
+        $array = $matrix->getArray();
+        $width = $matrix->getWidth();
+        $height = $matrix->getHeight();
+
+        for ($y = 0; $y < $height; ++$y) {
+            for ($x = 0; $x < $width; ++$x) {
+                if ($x + 6 < $width
+                    && 1 === $array[$y][$x]
+                    && 0 === $array[$y][$x + 1]
+                    && 1 === $array[$y][$x + 2]
+                    && 1 === $array[$y][$x + 3]
+                    && 1 === $array[$y][$x + 4]
+                    && 0 === $array[$y][$x + 5]
+                    && 1 === $array[$y][$x + 6]
+                    && (
+                        (
+                            $x + 10 < $width
+                            && 0 === $array[$y][$x + 7]
+                            && 0 === $array[$y][$x + 8]
+                            && 0 === $array[$y][$x + 9]
+                            && 0 === $array[$y][$x + 10]
+                        )
+                        || (
+                            $x - 4 >= 0
+                            && 0 === $array[$y][$x - 1]
+                            && 0 === $array[$y][$x - 2]
+                            && 0 === $array[$y][$x - 3]
+                            && 0 === $array[$y][$x - 4]
+                        )
+                    )
+                ) {
+                    $penalty += self::N3;
+                }
+
+                if ($y + 6 < $height
+                    && 1 === $array[$y][$x]
+                    && 0 === $array[$y + 1][$x]
+                    && 1 === $array[$y + 2][$x]
+                    && 1 === $array[$y + 3][$x]
+                    && 1 === $array[$y + 4][$x]
+                    && 0 === $array[$y + 5][$x]
+                    && 1 === $array[$y + 6][$x]
+                    && (
+                        (
+                            $y + 10 < $height
+                            && 0 === $array[$y + 7][$x]
+                            && 0 === $array[$y + 8][$x]
+                            && 0 === $array[$y + 9][$x]
+                            && 0 === $array[$y + 10][$x]
+                        )
+                        || (
+                            $y - 4 >= 0
+                            && 0 === $array[$y - 1][$x]
+                            && 0 === $array[$y - 2][$x]
+                            && 0 === $array[$y - 3][$x]
+                            && 0 === $array[$y - 4][$x]
+                        )
+                    )
+                ) {
+                    $penalty += self::N3;
+                }
+            }
+        }
+
+        return $penalty;
+    }
+
+    /**
+     * Applies mask penalty rule 4 and returns the penalty.
+     *
+     * Calculates the ratio of dark cells and gives penalty if the ratio is far
+     * from 50%. It gives 10 penalty for 5% distance.
+     */
+    public static function applyMaskPenaltyRule4(ByteMatrix $matrix) : int
+    {
+        $numDarkCells = 0;
+
+        $array = $matrix->getArray();
+        $width = $matrix->getWidth();
+        $height = $matrix->getHeight();
+
+        for ($y = 0; $y < $height; ++$y) {
+            $arrayY = $array[$y];
+
+            for ($x = 0; $x < $width; ++$x) {
+                if (1 === $arrayY[$x]) {
+                    ++$numDarkCells;
+                }
+            }
+        }
+
+        $numTotalCells = $height * $width;
+        $darkRatio = $numDarkCells / $numTotalCells;
+        $fixedPercentVariances = (int) (abs($darkRatio - 0.5) * 20);
+
+        return $fixedPercentVariances * self::N4;
+    }
+
+    /**
+     * Returns the mask bit for "getMaskPattern" at "x" and "y".
+     *
+     * See 8.8 of JISX0510:2004 for mask pattern conditions.
+     *
+     * @throws InvalidArgumentException if an invalid mask pattern was supplied
+     */
+    public static function getDataMaskBit(int $maskPattern, int $x, int $y) : bool
+    {
+        switch ($maskPattern) {
+            case 0:
+                $intermediate = ($y + $x) & 0x1;
+                break;
+
+            case 1:
+                $intermediate = $y & 0x1;
+                break;
+
+            case 2:
+                $intermediate = $x % 3;
+                break;
+
+            case 3:
+                $intermediate = ($y + $x) % 3;
+                break;
+
+            case 4:
+                $intermediate = (BitUtils::unsignedRightShift($y, 1) + (int) ($x / 3)) & 0x1;
+                break;
+
+            case 5:
+                $temp = $y * $x;
+                $intermediate = ($temp & 0x1) + ($temp % 3);
+                break;
+
+            case 6:
+                $temp = $y * $x;
+                $intermediate = (($temp & 0x1) + ($temp % 3)) & 0x1;
+                break;
+
+            case 7:
+                $temp = $y * $x;
+                $intermediate = (($temp % 3) + (($y + $x) & 0x1)) & 0x1;
+                break;
+
+            default:
+                throw new InvalidArgumentException('Invalid mask pattern: ' . $maskPattern);
+        }
+
+        return 0 == $intermediate;
+    }
+
+    /**
+     * Helper function for applyMaskPenaltyRule1.
+     *
+     * We need this for doing this calculation in both vertical and horizontal
+     * orders respectively.
+     */
+    private static function applyMaskPenaltyRule1Internal(ByteMatrix $matrix, bool $isHorizontal) : int
+    {
+        $penalty = 0;
+        $iLimit = $isHorizontal ? $matrix->getHeight() : $matrix->getWidth();
+        $jLimit = $isHorizontal ? $matrix->getWidth() : $matrix->getHeight();
+        $array = $matrix->getArray();
+
+        for ($i = 0; $i < $iLimit; ++$i) {
+            $numSameBitCells = 0;
+            $prevBit = -1;
+
+            for ($j = 0; $j < $jLimit; $j++) {
+                $bit = $isHorizontal ? $array[$i][$j] : $array[$j][$i];
+
+                if ($bit === $prevBit) {
+                    ++$numSameBitCells;
+                } else {
+                    if ($numSameBitCells >= 5) {
+                        $penalty += self::N1 + ($numSameBitCells - 5);
+                    }
+
+                    $numSameBitCells = 1;
+                    $prevBit = $bit;
+                }
+            }
+
+            if ($numSameBitCells >= 5) {
+                $penalty += self::N1 + ($numSameBitCells - 5);
+            }
+        }
+
+        return $penalty;
+    }
+}

vendor/bacon/bacon-qr-code/src/Encoder/MatrixUtil.php

@@ -0,0 +1,513 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Encoder;
+
+use BaconQrCode\Common\BitArray;
+use BaconQrCode\Common\ErrorCorrectionLevel;
+use BaconQrCode\Common\Version;
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Exception\WriterException;
+
+/**
+ * Matrix utility.
+ */
+final class MatrixUtil
+{
+    /**
+     * Position detection pattern.
+     */
+    private const POSITION_DETECTION_PATTERN = [
+        [1, 1, 1, 1, 1, 1, 1],
+        [1, 0, 0, 0, 0, 0, 1],
+        [1, 0, 1, 1, 1, 0, 1],
+        [1, 0, 1, 1, 1, 0, 1],
+        [1, 0, 1, 1, 1, 0, 1],
+        [1, 0, 0, 0, 0, 0, 1],
+        [1, 1, 1, 1, 1, 1, 1],
+    ];
+
+    /**
+     * Position adjustment pattern.
+     */
+    private const POSITION_ADJUSTMENT_PATTERN = [
+        [1, 1, 1, 1, 1],
+        [1, 0, 0, 0, 1],
+        [1, 0, 1, 0, 1],
+        [1, 0, 0, 0, 1],
+        [1, 1, 1, 1, 1],
+    ];
+
+    /**
+     * Coordinates for position adjustment patterns for each version.
+     */
+    private const POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE = [
+        [null, null, null, null, null, null, null], // Version 1
+        [   6,   18, null, null, null, null, null], // Version 2
+        [   6,   22, null, null, null, null, null], // Version 3
+        [   6,   26, null, null, null, null, null], // Version 4
+        [   6,   30, null, null, null, null, null], // Version 5
+        [   6,   34, null, null, null, null, null], // Version 6
+        [   6,   22,   38, null, null, null, null], // Version 7
+        [   6,   24,   42, null, null, null, null], // Version 8
+        [   6,   26,   46, null, null, null, null], // Version 9
+        [   6,   28,   50, null, null, null, null], // Version 10
+        [   6,   30,   54, null, null, null, null], // Version 11
+        [   6,   32,   58, null, null, null, null], // Version 12
+        [   6,   34,   62, null, null, null, null], // Version 13
+        [   6,   26,   46,   66, null, null, null], // Version 14
+        [   6,   26,   48,   70, null, null, null], // Version 15
+        [   6,   26,   50,   74, null, null, null], // Version 16
+        [   6,   30,   54,   78, null, null, null], // Version 17
+        [   6,   30,   56,   82, null, null, null], // Version 18
+        [   6,   30,   58,   86, null, null, null], // Version 19
+        [   6,   34,   62,   90, null, null, null], // Version 20
+        [   6,   28,   50,   72,   94, null, null], // Version 21
+        [   6,   26,   50,   74,   98, null, null], // Version 22
+        [   6,   30,   54,   78,  102, null, null], // Version 23
+        [   6,   28,   54,   80,  106, null, null], // Version 24
+        [   6,   32,   58,   84,  110, null, null], // Version 25
+        [   6,   30,   58,   86,  114, null, null], // Version 26
+        [   6,   34,   62,   90,  118, null, null], // Version 27
+        [   6,   26,   50,   74,   98,  122, null], // Version 28
+        [   6,   30,   54,   78,  102,  126, null], // Version 29
+        [   6,   26,   52,   78,  104,  130, null], // Version 30
+        [   6,   30,   56,   82,  108,  134, null], // Version 31
+        [   6,   34,   60,   86,  112,  138, null], // Version 32
+        [   6,   30,   58,   86,  114,  142, null], // Version 33
+        [   6,   34,   62,   90,  118,  146, null], // Version 34
+        [   6,   30,   54,   78,  102,  126,  150], // Version 35
+        [   6,   24,   50,   76,  102,  128,  154], // Version 36
+        [   6,   28,   54,   80,  106,  132,  158], // Version 37
+        [   6,   32,   58,   84,  110,  136,  162], // Version 38
+        [   6,   26,   54,   82,  110,  138,  166], // Version 39
+        [   6,   30,   58,   86,  114,  142,  170], // Version 40
+    ];
+
+    /**
+     * Type information coordinates.
+     */
+    private const TYPE_INFO_COORDINATES = [
+        [8, 0],
+        [8, 1],
+        [8, 2],
+        [8, 3],
+        [8, 4],
+        [8, 5],
+        [8, 7],
+        [8, 8],
+        [7, 8],
+        [5, 8],
+        [4, 8],
+        [3, 8],
+        [2, 8],
+        [1, 8],
+        [0, 8],
+    ];
+
+    /**
+     * Version information polynomial.
+     */
+    private const VERSION_INFO_POLY = 0x1f25;
+
+    /**
+     * Type information polynomial.
+     */
+    private const TYPE_INFO_POLY = 0x537;
+
+    /**
+     * Type information mask pattern.
+     */
+    private const TYPE_INFO_MASK_PATTERN = 0x5412;
+
+    /**
+     * Clears a given matrix.
+     */
+    public static function clearMatrix(ByteMatrix $matrix) : void
+    {
+        $matrix->clear(-1);
+    }
+
+    /**
+     * Builds a complete matrix.
+     */
+    public static function buildMatrix(
+        BitArray $dataBits,
+        ErrorCorrectionLevel $level,
+        Version $version,
+        int $maskPattern,
+        ByteMatrix $matrix
+    ) : void {
+        self::clearMatrix($matrix);
+        self::embedBasicPatterns($version, $matrix);
+        self::embedTypeInfo($level, $maskPattern, $matrix);
+        self::maybeEmbedVersionInfo($version, $matrix);
+        self::embedDataBits($dataBits, $maskPattern, $matrix);
+    }
+
+    /**
+     * Removes the position detection patterns from a matrix.
+     *
+     * This can be useful if you need to render those patterns separately.
+     */
+    public static function removePositionDetectionPatterns(ByteMatrix $matrix) : void
+    {
+        $pdpWidth = count(self::POSITION_DETECTION_PATTERN[0]);
+
+        self::removePositionDetectionPattern(0, 0, $matrix);
+        self::removePositionDetectionPattern($matrix->getWidth() - $pdpWidth, 0, $matrix);
+        self::removePositionDetectionPattern(0, $matrix->getWidth() - $pdpWidth, $matrix);
+    }
+
+    /**
+     * Embeds type information into a matrix.
+     */
+    private static function embedTypeInfo(ErrorCorrectionLevel $level, int $maskPattern, ByteMatrix $matrix) : void
+    {
+        $typeInfoBits = new BitArray();
+        self::makeTypeInfoBits($level, $maskPattern, $typeInfoBits);
+
+        $typeInfoBitsSize = $typeInfoBits->getSize();
+
+        for ($i = 0; $i < $typeInfoBitsSize; ++$i) {
+            $bit = $typeInfoBits->get($typeInfoBitsSize - 1 - $i);
+
+            $x1 = self::TYPE_INFO_COORDINATES[$i][0];
+            $y1 = self::TYPE_INFO_COORDINATES[$i][1];
+
+            $matrix->set($x1, $y1, (int) $bit);
+
+            if ($i < 8) {
+                $x2 = $matrix->getWidth() - $i - 1;
+                $y2 = 8;
+            } else {
+                $x2 = 8;
+                $y2 = $matrix->getHeight() - 7 + ($i - 8);
+            }
+
+            $matrix->set($x2, $y2, (int) $bit);
+        }
+    }
+
+    /**
+     * Generates type information bits and appends them to a bit array.
+     *
+     * @throws RuntimeException if bit array resulted in invalid size
+     */
+    private static function makeTypeInfoBits(ErrorCorrectionLevel $level, int $maskPattern, BitArray $bits) : void
+    {
+        $typeInfo = ($level->getBits() << 3) | $maskPattern;
+        $bits->appendBits($typeInfo, 5);
+
+        $bchCode = self::calculateBchCode($typeInfo, self::TYPE_INFO_POLY);
+        $bits->appendBits($bchCode, 10);
+
+        $maskBits = new BitArray();
+        $maskBits->appendBits(self::TYPE_INFO_MASK_PATTERN, 15);
+        $bits->xorBits($maskBits);
+
+        if (15 !== $bits->getSize()) {
+            throw new RuntimeException('Bit array resulted in invalid size: ' . $bits->getSize());
+        }
+    }
+
+    /**
+     * Embeds version information if required.
+     */
+    private static function maybeEmbedVersionInfo(Version $version, ByteMatrix $matrix) : void
+    {
+        if ($version->getVersionNumber() < 7) {
+            return;
+        }
+
+        $versionInfoBits = new BitArray();
+        self::makeVersionInfoBits($version, $versionInfoBits);
+
+        $bitIndex = 6 * 3 - 1;
+
+        for ($i = 0; $i < 6; ++$i) {
+            for ($j = 0; $j < 3; ++$j) {
+                $bit = $versionInfoBits->get($bitIndex);
+                --$bitIndex;
+
+                $matrix->set($i, $matrix->getHeight() - 11 + $j, (int) $bit);
+                $matrix->set($matrix->getHeight() - 11 + $j, $i, (int) $bit);
+            }
+        }
+    }
+
+    /**
+     * Generates version information bits and appends them to a bit array.
+     *
+     * @throws RuntimeException if bit array resulted in invalid size
+     */
+    private static function makeVersionInfoBits(Version $version, BitArray $bits) : void
+    {
+        $bits->appendBits($version->getVersionNumber(), 6);
+
+        $bchCode = self::calculateBchCode($version->getVersionNumber(), self::VERSION_INFO_POLY);
+        $bits->appendBits($bchCode, 12);
+
+        if (18 !== $bits->getSize()) {
+            throw new RuntimeException('Bit array resulted in invalid size: ' . $bits->getSize());
+        }
+    }
+
+    /**
+     * Calculates the BCH code for a value and a polynomial.
+     */
+    private static function calculateBchCode(int $value, int $poly) : int
+    {
+        $msbSetInPoly = self::findMsbSet($poly);
+        $value <<= $msbSetInPoly - 1;
+
+        while (self::findMsbSet($value) >= $msbSetInPoly) {
+            $value ^= $poly << (self::findMsbSet($value) - $msbSetInPoly);
+        }
+
+        return $value;
+    }
+
+    /**
+     * Finds and MSB set.
+     */
+    private static function findMsbSet(int $value) : int
+    {
+        $numDigits = 0;
+
+        while (0 !== $value) {
+            $value >>= 1;
+            ++$numDigits;
+        }
+
+        return $numDigits;
+    }
+
+    /**
+     * Embeds basic patterns into a matrix.
+     */
+    private static function embedBasicPatterns(Version $version, ByteMatrix $matrix) : void
+    {
+        self::embedPositionDetectionPatternsAndSeparators($matrix);
+        self::embedDarkDotAtLeftBottomCorner($matrix);
+        self::maybeEmbedPositionAdjustmentPatterns($version, $matrix);
+        self::embedTimingPatterns($matrix);
+    }
+
+    /**
+     * Embeds position detection patterns and separators into a byte matrix.
+     */
+    private static function embedPositionDetectionPatternsAndSeparators(ByteMatrix $matrix) : void
+    {
+        $pdpWidth = count(self::POSITION_DETECTION_PATTERN[0]);
+
+        self::embedPositionDetectionPattern(0, 0, $matrix);
+        self::embedPositionDetectionPattern($matrix->getWidth() - $pdpWidth, 0, $matrix);
+        self::embedPositionDetectionPattern(0, $matrix->getWidth() - $pdpWidth, $matrix);
+
+        $hspWidth = 8;
+
+        self::embedHorizontalSeparationPattern(0, $hspWidth - 1, $matrix);
+        self::embedHorizontalSeparationPattern($matrix->getWidth() - $hspWidth, $hspWidth - 1, $matrix);
+        self::embedHorizontalSeparationPattern(0, $matrix->getWidth() - $hspWidth, $matrix);
+
+        $vspSize = 7;
+
+        self::embedVerticalSeparationPattern($vspSize, 0, $matrix);
+        self::embedVerticalSeparationPattern($matrix->getHeight() - $vspSize - 1, 0, $matrix);
+        self::embedVerticalSeparationPattern($vspSize, $matrix->getHeight() - $vspSize, $matrix);
+    }
+
+    /**
+     * Embeds a single position detection pattern into a byte matrix.
+     */
+    private static function embedPositionDetectionPattern(int $xStart, int $yStart, ByteMatrix $matrix) : void
+    {
+        for ($y = 0; $y < 7; ++$y) {
+            for ($x = 0; $x < 7; ++$x) {
+                $matrix->set($xStart + $x, $yStart + $y, self::POSITION_DETECTION_PATTERN[$y][$x]);
+            }
+        }
+    }
+
+    private static function removePositionDetectionPattern(int $xStart, int $yStart, ByteMatrix $matrix) : void
+    {
+        for ($y = 0; $y < 7; ++$y) {
+            for ($x = 0; $x < 7; ++$x) {
+                $matrix->set($xStart + $x, $yStart + $y, 0);
+            }
+        }
+    }
+
+    /**
+     * Embeds a single horizontal separation pattern.
+     *
+     * @throws RuntimeException if a byte was already set
+     */
+    private static function embedHorizontalSeparationPattern(int $xStart, int $yStart, ByteMatrix $matrix) : void
+    {
+        for ($x = 0; $x < 8; $x++) {
+            if (-1 !== $matrix->get($xStart + $x, $yStart)) {
+                throw new RuntimeException('Byte already set');
+            }
+
+            $matrix->set($xStart + $x, $yStart, 0);
+        }
+    }
+
+    /**
+     * Embeds a single vertical separation pattern.
+     *
+     * @throws RuntimeException if a byte was already set
+     */
+    private static function embedVerticalSeparationPattern(int $xStart, int $yStart, ByteMatrix $matrix) : void
+    {
+        for ($y = 0; $y < 7; $y++) {
+            if (-1 !== $matrix->get($xStart, $yStart + $y)) {
+                throw new RuntimeException('Byte already set');
+            }
+
+            $matrix->set($xStart, $yStart + $y, 0);
+        }
+    }
+
+    /**
+     * Embeds a dot at the left bottom corner.
+     *
+     * @throws RuntimeException if a byte was already set to 0
+     */
+    private static function embedDarkDotAtLeftBottomCorner(ByteMatrix $matrix) : void
+    {
+        if (0 === $matrix->get(8, $matrix->getHeight() - 8)) {
+            throw new RuntimeException('Byte already set to 0');
+        }
+
+        $matrix->set(8, $matrix->getHeight() - 8, 1);
+    }
+
+    /**
+     * Embeds position adjustment patterns if required.
+     */
+    private static function maybeEmbedPositionAdjustmentPatterns(Version $version, ByteMatrix $matrix) : void
+    {
+        if ($version->getVersionNumber() < 2) {
+            return;
+        }
+
+        $index = $version->getVersionNumber() - 1;
+
+        $coordinates = self::POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[$index];
+        $numCoordinates = count($coordinates);
+
+        for ($i = 0; $i < $numCoordinates; ++$i) {
+            for ($j = 0; $j < $numCoordinates; ++$j) {
+                $y = $coordinates[$i];
+                $x = $coordinates[$j];
+
+                if (null === $x || null === $y) {
+                    continue;
+                }
+
+                if (-1 === $matrix->get($x, $y)) {
+                    self::embedPositionAdjustmentPattern($x - 2, $y - 2, $matrix);
+                }
+            }
+        }
+    }
+
+    /**
+     * Embeds a single position adjustment pattern.
+     */
+    private static function embedPositionAdjustmentPattern(int $xStart, int $yStart, ByteMatrix $matrix) : void
+    {
+        for ($y = 0; $y < 5; $y++) {
+            for ($x = 0; $x < 5; $x++) {
+                $matrix->set($xStart + $x, $yStart + $y, self::POSITION_ADJUSTMENT_PATTERN[$y][$x]);
+            }
+        }
+    }
+
+    /**
+     * Embeds timing patterns into a matrix.
+     */
+    private static function embedTimingPatterns(ByteMatrix $matrix) : void
+    {
+        $matrixWidth = $matrix->getWidth();
+
+        for ($i = 8; $i < $matrixWidth - 8; ++$i) {
+            $bit = ($i + 1) % 2;
+
+            if (-1 === $matrix->get($i, 6)) {
+                $matrix->set($i, 6, $bit);
+            }
+
+            if (-1 === $matrix->get(6, $i)) {
+                $matrix->set(6, $i, $bit);
+            }
+        }
+    }
+
+    /**
+     * Embeds "dataBits" using "getMaskPattern".
+     *
+     * For debugging purposes, it skips masking process if "getMaskPattern" is -1. See 8.7 of JISX0510:2004 (p.38) for
+     * how to embed data bits.
+     *
+     * @throws WriterException if not all bits could be consumed
+     */
+    private static function embedDataBits(BitArray $dataBits, int $maskPattern, ByteMatrix $matrix) : void
+    {
+        $bitIndex = 0;
+        $direction = -1;
+
+        // Start from the right bottom cell.
+        $x = $matrix->getWidth() - 1;
+        $y = $matrix->getHeight() - 1;
+
+        while ($x > 0) {
+            // Skip vertical timing pattern.
+            if (6 === $x) {
+                --$x;
+            }
+
+            while ($y >= 0 && $y < $matrix->getHeight()) {
+                for ($i = 0; $i < 2; $i++) {
+                    $xx = $x - $i;
+
+                    // Skip the cell if it's not empty.
+                    if (-1 !== $matrix->get($xx, $y)) {
+                        continue;
+                    }
+
+                    if ($bitIndex < $dataBits->getSize()) {
+                        $bit = $dataBits->get($bitIndex);
+                        ++$bitIndex;
+                    } else {
+                        // Padding bit. If there is no bit left, we'll fill the
+                        // left cells with 0, as described in 8.4.9 of
+                        // JISX0510:2004 (p. 24).
+                        $bit = false;
+                    }
+
+                    // Skip masking if maskPattern is -1.
+                    if (-1 !== $maskPattern && MaskUtil::getDataMaskBit($maskPattern, $xx, $y)) {
+                        $bit = ! $bit;
+                    }
+
+                    $matrix->set($xx, $y, (int) $bit);
+                }
+
+                $y += $direction;
+            }
+
+            $direction  = -$direction;
+            $y += $direction;
+            $x -= 2;
+        }
+
+        // All bits should be consumed
+        if ($dataBits->getSize() !== $bitIndex) {
+            throw new WriterException('Not all bits consumed (' . $bitIndex . ' out of ' . $dataBits->getSize() .')');
+        }
+    }
+}

vendor/bacon/bacon-qr-code/src/Encoder/QrCode.php

@@ -0,0 +1,108 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Encoder;
+
+use BaconQrCode\Common\ErrorCorrectionLevel;
+use BaconQrCode\Common\Mode;
+use BaconQrCode\Common\Version;
+
+/**
+ * QR code.
+ */
+final class QrCode
+{
+    /**
+     * Number of possible mask patterns.
+     */
+    public const NUM_MASK_PATTERNS = 8;
+
+    /**
+     * Mask pattern of the QR code.
+     */
+    private int $maskPattern = -1;
+
+    /**
+     * Matrix of the QR code.
+     */
+    private ByteMatrix $matrix;
+
+    public function __construct(
+        private readonly Mode                 $mode,
+        private readonly ErrorCorrectionLevel $errorCorrectionLevel,
+        private readonly Version              $version,
+        int                                   $maskPattern,
+        ByteMatrix                            $matrix
+    ) {
+        $this->maskPattern = $maskPattern;
+        $this->matrix = $matrix;
+    }
+
+    /**
+     * Gets the mode.
+     */
+    public function getMode() : Mode
+    {
+        return $this->mode;
+    }
+
+    /**
+     * Gets the EC level.
+     */
+    public function getErrorCorrectionLevel() : ErrorCorrectionLevel
+    {
+        return $this->errorCorrectionLevel;
+    }
+
+    /**
+     * Gets the version.
+     */
+    public function getVersion() : Version
+    {
+        return $this->version;
+    }
+
+    /**
+     * Gets the mask pattern.
+     */
+    public function getMaskPattern() : int
+    {
+        return $this->maskPattern;
+    }
+
+    public function getMatrix(): ByteMatrix
+    {
+        return $this->matrix;
+    }
+
+    /**
+     * Validates whether a mask pattern is valid.
+     */
+    public static function isValidMaskPattern(int $maskPattern) : bool
+    {
+        return $maskPattern > 0 && $maskPattern < self::NUM_MASK_PATTERNS;
+    }
+
+    /**
+     * Returns a string representation of the QR code.
+     */
+    public function __toString() : string
+    {
+        $result = "<<\n"
+                . ' mode: ' . $this->mode . "\n"
+                . ' ecLevel: ' . $this->errorCorrectionLevel . "\n"
+                . ' version: ' . $this->version . "\n"
+                . ' maskPattern: ' . $this->maskPattern . "\n";
+
+        if ($this->matrix === null) {
+            $result .= " matrix: null\n";
+        } else {
+            $result .= " matrix:\n";
+            $result .= $this->matrix;
+        }
+
+        $result .= ">>\n";
+
+        return $result;
+    }
+}

vendor/bacon/bacon-qr-code/src/Exception/ExceptionInterface.php

@@ -0,0 +1,10 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Exception;
+
+use Throwable;
+
+interface ExceptionInterface extends Throwable
+{
+}

vendor/bacon/bacon-qr-code/src/Exception/InvalidArgumentException.php

@@ -0,0 +1,8 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Exception;
+
+final class InvalidArgumentException extends \InvalidArgumentException implements ExceptionInterface
+{
+}

vendor/bacon/bacon-qr-code/src/Exception/OutOfBoundsException.php

@@ -0,0 +1,8 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Exception;
+
+final class OutOfBoundsException extends \OutOfBoundsException implements ExceptionInterface
+{
+}

vendor/bacon/bacon-qr-code/src/Exception/RuntimeException.php

@@ -0,0 +1,8 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Exception;
+
+final class RuntimeException extends \RuntimeException implements ExceptionInterface
+{
+}

vendor/bacon/bacon-qr-code/src/Exception/UnexpectedValueException.php

@@ -0,0 +1,8 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Exception;
+
+final class UnexpectedValueException extends \UnexpectedValueException implements ExceptionInterface
+{
+}

vendor/bacon/bacon-qr-code/src/Exception/WriterException.php

@@ -0,0 +1,8 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Exception;
+
+final class WriterException extends \RuntimeException implements ExceptionInterface
+{
+}

vendor/bacon/bacon-qr-code/src/Renderer/Color/Alpha.php

@@ -0,0 +1,44 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Color;
+
+use BaconQrCode\Exception;
+
+final class Alpha implements ColorInterface
+{
+    /**
+     * @param int $alpha the alpha value, 0 to 100
+     */
+    public function __construct(private readonly int $alpha, private readonly ColorInterface $baseColor)
+    {
+        if ($alpha < 0 || $alpha > 100) {
+            throw new Exception\InvalidArgumentException('Alpha must be between 0 and 100');
+        }
+    }
+
+    public function getAlpha() : int
+    {
+        return $this->alpha;
+    }
+
+    public function getBaseColor() : ColorInterface
+    {
+        return $this->baseColor;
+    }
+
+    public function toRgb() : Rgb
+    {
+        return $this->baseColor->toRgb();
+    }
+
+    public function toCmyk() : Cmyk
+    {
+        return $this->baseColor->toCmyk();
+    }
+
+    public function toGray() : Gray
+    {
+        return $this->baseColor->toGray();
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Color/Cmyk.php

@@ -0,0 +1,82 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Color;
+
+use BaconQrCode\Exception;
+
+final class Cmyk implements ColorInterface
+{
+    /**
+     * @param int $cyan the cyan amount, 0 to 100
+     * @param int $magenta the magenta amount, 0 to 100
+     * @param int $yellow the yellow amount, 0 to 100
+     * @param int $black the black amount, 0 to 100
+     */
+    public function __construct(
+        private readonly int $cyan,
+        private readonly int $magenta,
+        private readonly int $yellow,
+        private readonly int $black
+    ) {
+        if ($cyan < 0 || $cyan > 100) {
+            throw new Exception\InvalidArgumentException('Cyan must be between 0 and 100');
+        }
+
+        if ($magenta < 0 || $magenta > 100) {
+            throw new Exception\InvalidArgumentException('Magenta must be between 0 and 100');
+        }
+
+        if ($yellow < 0 || $yellow > 100) {
+            throw new Exception\InvalidArgumentException('Yellow must be between 0 and 100');
+        }
+
+        if ($black < 0 || $black > 100) {
+            throw new Exception\InvalidArgumentException('Black must be between 0 and 100');
+        }
+    }
+
+    public function getCyan() : int
+    {
+        return $this->cyan;
+    }
+
+    public function getMagenta() : int
+    {
+        return $this->magenta;
+    }
+
+    public function getYellow() : int
+    {
+        return $this->yellow;
+    }
+
+    public function getBlack() : int
+    {
+        return $this->black;
+    }
+
+    public function toRgb() : Rgb
+    {
+        $k = $this->black / 100;
+        $c = (-$k * $this->cyan + $k * 100 + $this->cyan) / 100;
+        $m = (-$k * $this->magenta + $k * 100 + $this->magenta) / 100;
+        $y = (-$k * $this->yellow + $k * 100 + $this->yellow) / 100;
+
+        return new Rgb(
+            (int) (-$c * 255 + 255),
+            (int) (-$m * 255 + 255),
+            (int) (-$y * 255 + 255)
+        );
+    }
+
+    public function toCmyk() : Cmyk
+    {
+        return $this;
+    }
+
+    public function toGray() : Gray
+    {
+        return $this->toRgb()->toGray();
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Color/ColorInterface.php

@@ -0,0 +1,22 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Color;
+
+interface ColorInterface
+{
+    /**
+     * Converts the color to RGB.
+     */
+    public function toRgb() : Rgb;
+
+    /**
+     * Converts the color to CMYK.
+     */
+    public function toCmyk() : Cmyk;
+
+    /**
+     * Converts the color to gray.
+     */
+    public function toGray() : Gray;
+}

vendor/bacon/bacon-qr-code/src/Renderer/Color/Gray.php

@@ -0,0 +1,39 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Color;
+
+use BaconQrCode\Exception;
+
+final class Gray implements ColorInterface
+{
+    /**
+     * @param int $gray the gray value between 0 (black) and 100 (white)
+     */
+    public function __construct(private readonly int $gray)
+    {
+        if ($gray < 0 || $gray > 100) {
+            throw new Exception\InvalidArgumentException('Gray must be between 0 and 100');
+        }
+    }
+
+    public function getGray() : int
+    {
+        return $this->gray;
+    }
+
+    public function toRgb() : Rgb
+    {
+        return new Rgb((int) ($this->gray * 2.55), (int) ($this->gray * 2.55), (int) ($this->gray * 2.55));
+    }
+
+    public function toCmyk() : Cmyk
+    {
+        return new Cmyk(0, 0, 0, 100 - $this->gray);
+    }
+
+    public function toGray() : Gray
+    {
+        return $this;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Color/Rgb.php

@@ -0,0 +1,73 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Color;
+
+use BaconQrCode\Exception;
+
+final class Rgb implements ColorInterface
+{
+    /**
+     * @param int $red the red amount of the color, 0 to 255
+     * @param int $green the green amount of the color, 0 to 255
+     * @param int $blue the blue amount of the color, 0 to 255
+     */
+    public function __construct(private readonly int $red, private readonly int $green, private readonly int $blue)
+    {
+        if ($red < 0 || $red > 255) {
+            throw new Exception\InvalidArgumentException('Red must be between 0 and 255');
+        }
+
+        if ($green < 0 || $green > 255) {
+            throw new Exception\InvalidArgumentException('Green must be between 0 and 255');
+        }
+
+        if ($blue < 0 || $blue > 255) {
+            throw new Exception\InvalidArgumentException('Blue must be between 0 and 255');
+        }
+    }
+
+    public function getRed() : int
+    {
+        return $this->red;
+    }
+
+    public function getGreen() : int
+    {
+        return $this->green;
+    }
+
+    public function getBlue() : int
+    {
+        return $this->blue;
+    }
+
+    public function toRgb() : Rgb
+    {
+        return $this;
+    }
+
+    public function toCmyk() : Cmyk
+    {
+        $c = 1 - ($this->red / 255);
+        $m = 1 - ($this->green / 255);
+        $y = 1 - ($this->blue / 255);
+        $k = min($c, $m, $y);
+
+        if ($k === 0) {
+            return new Cmyk(0, 0, 0, 0);
+        }
+
+        return new Cmyk(
+            (int) (100 * ($c - $k) / (1 - $k)),
+            (int) (100 * ($m - $k) / (1 - $k)),
+            (int) (100 * ($y - $k) / (1 - $k)),
+            (int) (100 * $k)
+        );
+    }
+
+    public function toGray() : Gray
+    {
+        return new Gray((int) (($this->red * 0.21 + $this->green * 0.71 + $this->blue * 0.07) / 2.55));
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Eye/CompositeEye.php

@@ -0,0 +1,26 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Eye;
+
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Combines the style of two different eyes.
+ */
+final class CompositeEye implements EyeInterface
+{
+    public function __construct(private readonly EyeInterface $externalEye, private readonly EyeInterface $internalEye)
+    {
+    }
+
+    public function getExternalPath() : Path
+    {
+        return $this->externalEye->getExternalPath();
+    }
+
+    public function getInternalPath() : Path
+    {
+        return $this->internalEye->getInternalPath();
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Eye/EyeInterface.php

@@ -0,0 +1,26 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Eye;
+
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Interface for describing the look of an eye.
+ */
+interface EyeInterface
+{
+    /**
+     * Returns the path of the external eye element.
+     *
+     * The path origin point (0, 0) must be anchored at the middle of the path.
+     */
+    public function getExternalPath() : Path;
+
+    /**
+     * Returns the path of the internal eye element.
+     *
+     * The path origin point (0, 0) must be anchored at the middle of the path.
+     */
+    public function getInternalPath() : Path;
+}

vendor/bacon/bacon-qr-code/src/Renderer/Eye/ModuleEye.php

@@ -0,0 +1,48 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Eye;
+
+use BaconQrCode\Encoder\ByteMatrix;
+use BaconQrCode\Renderer\Module\ModuleInterface;
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Renders an eye based on a module renderer.
+ */
+final class ModuleEye implements EyeInterface
+{
+    public function __construct(private readonly ModuleInterface $module)
+    {
+    }
+
+    public function getExternalPath() : Path
+    {
+        $matrix = new ByteMatrix(7, 7);
+
+        for ($x = 0; $x < 7; ++$x) {
+            $matrix->set($x, 0, 1);
+            $matrix->set($x, 6, 1);
+        }
+
+        for ($y = 1; $y < 6; ++$y) {
+            $matrix->set(0, $y, 1);
+            $matrix->set(6, $y, 1);
+        }
+
+        return $this->module->createPath($matrix)->translate(-3.5, -3.5);
+    }
+
+    public function getInternalPath() : Path
+    {
+        $matrix = new ByteMatrix(3, 3);
+
+        for ($x = 0; $x < 3; ++$x) {
+            for ($y = 0; $y < 3; ++$y) {
+                $matrix->set($x, $y, 1);
+            }
+        }
+
+        return $this->module->createPath($matrix)->translate(-1.5, -1.5);
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Eye/PointyEye.php

@@ -0,0 +1,56 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Eye;
+
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Renders the outer eye as solid with a curved corner and inner eye as a circle.
+ */
+final class PointyEye implements EyeInterface
+{
+    /**
+     * @var self|null
+     */
+    private static $instance;
+
+    private function __construct()
+    {
+    }
+
+    public static function instance() : self
+    {
+        return self::$instance ?: self::$instance = new self();
+    }
+
+    public function getExternalPath() : Path
+    {
+        return (new Path())
+            ->move(-3.5, 3.5)
+            ->line(-3.5, 0)
+            ->ellipticArc(3.5, 3.5, 0, false, true, 0, -3.5)
+            ->line(3.5, -3.5)
+            ->line(3.5, 3.5)
+            ->close()
+            ->move(2.5, 0)
+            ->ellipticArc(2.5, 2.5, 0, false, true, 0, 2.5)
+            ->ellipticArc(2.5, 2.5, 0, false, true, -2.5, 0)
+            ->ellipticArc(2.5, 2.5, 0, false, true, 0, -2.5)
+            ->ellipticArc(2.5, 2.5, 0, false, true, 2.5, 0)
+            ->close()
+        ;
+    }
+
+    public function getInternalPath() : Path
+    {
+        return (new Path())
+            ->move(1.5, 0)
+            ->ellipticArc(1.5, 1.5, 0., false, true, 0., 1.5)
+            ->ellipticArc(1.5, 1.5, 0., false, true, -1.5, 0.)
+            ->ellipticArc(1.5, 1.5, 0., false, true, 0., -1.5)
+            ->ellipticArc(1.5, 1.5, 0., false, true, 1.5, 0.)
+            ->close()
+        ;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Eye/SimpleCircleEye.php

@@ -0,0 +1,51 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Eye;
+
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Renders the inner eye as a circle.
+ */
+final class SimpleCircleEye implements EyeInterface
+{
+    private static ?SimpleCircleEye $instance = null;
+
+    private function __construct()
+    {
+    }
+
+    public static function instance() : self
+    {
+        return self::$instance ?: self::$instance = new self();
+    }
+
+    public function getExternalPath() : Path
+    {
+        return (new Path())
+            ->move(-3.5, -3.5)
+            ->line(3.5, -3.5)
+            ->line(3.5, 3.5)
+            ->line(-3.5, 3.5)
+            ->close()
+            ->move(-2.5, -2.5)
+            ->line(-2.5, 2.5)
+            ->line(2.5, 2.5)
+            ->line(2.5, -2.5)
+            ->close()
+        ;
+    }
+
+    public function getInternalPath() : Path
+    {
+        return (new Path())
+            ->move(1.5, 0)
+            ->ellipticArc(1.5, 1.5, 0., false, true, 0., 1.5)
+            ->ellipticArc(1.5, 1.5, 0., false, true, -1.5, 0.)
+            ->ellipticArc(1.5, 1.5, 0., false, true, 0., -1.5)
+            ->ellipticArc(1.5, 1.5, 0., false, true, 1.5, 0.)
+            ->close()
+        ;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Eye/SquareEye.php

@@ -0,0 +1,50 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Eye;
+
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Renders the eyes in their default square shape.
+ */
+final class SquareEye implements EyeInterface
+{
+    private static ?SquareEye $instance = null;
+
+    private function __construct()
+    {
+    }
+
+    public static function instance() : self
+    {
+        return self::$instance ?: self::$instance = new self();
+    }
+
+    public function getExternalPath() : Path
+    {
+        return (new Path())
+            ->move(-3.5, -3.5)
+            ->line(3.5, -3.5)
+            ->line(3.5, 3.5)
+            ->line(-3.5, 3.5)
+            ->close()
+            ->move(-2.5, -2.5)
+            ->line(-2.5, 2.5)
+            ->line(2.5, 2.5)
+            ->line(2.5, -2.5)
+            ->close()
+        ;
+    }
+
+    public function getInternalPath() : Path
+    {
+        return (new Path())
+            ->move(-1.5, -1.5)
+            ->line(1.5, -1.5)
+            ->line(1.5, 1.5)
+            ->line(-1.5, 1.5)
+            ->close()
+        ;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/GDLibRenderer.php

@@ -0,0 +1,238 @@
+<?php
+
+declare(strict_types=1);
+
+namespace BaconQrCode\Renderer;
+
+use BaconQrCode\Encoder\ByteMatrix;
+use BaconQrCode\Encoder\MatrixUtil;
+use BaconQrCode\Encoder\QrCode;
+use BaconQrCode\Exception\InvalidArgumentException;
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Renderer\Color\Alpha;
+use BaconQrCode\Renderer\Color\ColorInterface;
+use BaconQrCode\Renderer\RendererStyle\EyeFill;
+use BaconQrCode\Renderer\RendererStyle\Fill;
+use GdImage;
+
+final class GDLibRenderer implements RendererInterface
+{
+    private ?GdImage $image;
+
+    /**
+     * @var array<string, int>
+     */
+    private array $colors;
+
+    public function __construct(
+        private int $size,
+        private int $margin = 4,
+        private string $imageFormat = 'png',
+        private int $compressionQuality = 9,
+        private ?Fill $fill = null
+    ) {
+        if (! extension_loaded('gd') || ! function_exists('gd_info')) {
+            throw new RuntimeException('You need to install the GD extension to use this back end');
+        }
+
+        if ($this->fill === null) {
+            $this->fill = Fill::default();
+        }
+        if ($this->fill->hasGradientFill()) {
+            throw new InvalidArgumentException('GDLibRenderer does not support gradients');
+        }
+    }
+
+    /**
+     * @throws InvalidArgumentException if matrix width doesn't match height
+     */
+    public function render(QrCode $qrCode): string
+    {
+        $matrix = $qrCode->getMatrix();
+        $matrixSize = $matrix->getWidth();
+
+        if ($matrixSize !== $matrix->getHeight()) {
+            throw new InvalidArgumentException('Matrix must have the same width and height');
+        }
+
+        MatrixUtil::removePositionDetectionPatterns($matrix);
+        $this->newImage();
+        $this->draw($matrix);
+
+        return $this->renderImage();
+    }
+
+    private function newImage(): void
+    {
+        $img = imagecreatetruecolor($this->size, $this->size);
+        if ($img === false) {
+            throw new RuntimeException('Failed to create image of that size');
+        }
+
+        $this->image = $img;
+        imagealphablending($this->image, false);
+        imagesavealpha($this->image, true);
+
+
+        $bg = $this->getColor($this->fill->getBackgroundColor());
+        imagefilledrectangle($this->image, 0, 0, $this->size, $this->size, $bg);
+        imagealphablending($this->image, true);
+    }
+
+    private function draw(ByteMatrix $matrix): void
+    {
+        $matrixSize = $matrix->getWidth();
+
+        $pointsOnSide = $matrix->getWidth() + $this->margin * 2;
+        $pointInPx = $this->size / $pointsOnSide;
+
+        $this->drawEye(0, 0, $pointInPx, $this->fill->getTopLeftEyeFill());
+        $this->drawEye($matrixSize - 7, 0, $pointInPx, $this->fill->getTopRightEyeFill());
+        $this->drawEye(0, $matrixSize - 7, $pointInPx, $this->fill->getBottomLeftEyeFill());
+
+        $rows = $matrix->getArray()->toArray();
+        $color = $this->getColor($this->fill->getForegroundColor());
+        for ($y = 0; $y < $matrixSize; $y += 1) {
+            for ($x = 0; $x < $matrixSize; $x += 1) {
+                if (! $rows[$y][$x]) {
+                    continue;
+                }
+
+                $points = $this->normalizePoints([
+                    ($this->margin + $x) * $pointInPx, ($this->margin + $y) * $pointInPx,
+                    ($this->margin + $x + 1) * $pointInPx, ($this->margin + $y) * $pointInPx,
+                    ($this->margin + $x + 1) * $pointInPx, ($this->margin + $y + 1) * $pointInPx,
+                    ($this->margin + $x) * $pointInPx, ($this->margin + $y + 1) * $pointInPx,
+                ]);
+                imagefilledpolygon($this->image, $points, $color);
+            }
+        }
+    }
+
+    private function drawEye(int $xOffset, int $yOffset, float $pointInPx, EyeFill $eyeFill): void
+    {
+        $internalColor = $this->getColor($eyeFill->inheritsInternalColor()
+            ? $this->fill->getForegroundColor()
+            : $eyeFill->getInternalColor());
+
+        $externalColor = $this->getColor($eyeFill->inheritsExternalColor()
+            ? $this->fill->getForegroundColor()
+            : $eyeFill->getExternalColor());
+
+        for ($y = 0; $y < 7; $y += 1) {
+            for ($x = 0; $x < 7; $x += 1) {
+                if ((($y === 1 || $y === 5) && $x > 0 && $x < 6) || (($x === 1 || $x === 5) && $y > 0 && $y < 6)) {
+                    continue;
+                }
+
+                $points = $this->normalizePoints([
+                    ($this->margin + $x + $xOffset) * $pointInPx, ($this->margin + $y + $yOffset) * $pointInPx,
+                    ($this->margin + $x + $xOffset + 1) * $pointInPx, ($this->margin + $y + $yOffset) * $pointInPx,
+                    ($this->margin + $x + $xOffset + 1) * $pointInPx, ($this->margin + $y + $yOffset + 1) * $pointInPx,
+                    ($this->margin + $x + $xOffset) * $pointInPx, ($this->margin + $y + $yOffset + 1) * $pointInPx,
+                ]);
+
+                if ($y > 1 && $y < 5 && $x > 1 && $x < 5) {
+                    imagefilledpolygon($this->image, $points, $internalColor);
+                } else {
+                    imagefilledpolygon($this->image, $points, $externalColor);
+                }
+            }
+        }
+    }
+
+    /**
+     * Normalize points will trim right and bottom line by 1 pixel.
+     * Otherwise pixels of neighbors are overlapping which leads to issue with transparency and small QR codes.
+     */
+    private function normalizePoints(array $points): array
+    {
+        $maxX = $maxY = 0;
+        for ($i = 0; $i < count($points); $i += 2) {
+            // Do manual round as GD just removes decimal part
+            $points[$i] = $newX = round($points[$i]);
+            $points[$i + 1] = $newY = round($points[$i + 1]);
+
+            $maxX = max($maxX, $newX);
+            $maxY = max($maxY, $newY);
+        }
+
+        // Do trimming only if there are 4 points (8 coordinates), assumes this is square.
+
+        for ($i = 0; $i < count($points); $i += 2) {
+            $points[$i] = min($points[$i], $maxX - 1);
+            $points[$i + 1] = min($points[$i + 1], $maxY - 1);
+        }
+
+        return $points;
+    }
+
+    private function renderImage(): string
+    {
+        ob_start();
+        $quality = $this->compressionQuality;
+        switch ($this->imageFormat) {
+            case 'png':
+                if ($quality > 9 || $quality < 0) {
+                    $quality = 9;
+                }
+                imagepng($this->image, null, $quality);
+                break;
+
+            case 'gif':
+                imagegif($this->image, null);
+                break;
+
+            case 'jpeg':
+            case 'jpg':
+                if ($quality > 100 || $quality < 0) {
+                    $quality = 85;
+                }
+                imagejpeg($this->image, null, $quality);
+                break;
+            default:
+                ob_end_clean();
+                throw new InvalidArgumentException(
+                    'Supported image formats are jpeg, png and gif, got: ' . $this->imageFormat
+                );
+        }
+
+        imagedestroy($this->image);
+        $this->colors = [];
+        $this->image = null;
+
+        return ob_get_clean();
+    }
+
+    private function getColor(ColorInterface $color): int
+    {
+        $alpha = 100;
+
+        if ($color instanceof Alpha) {
+            $alpha = $color->getAlpha();
+            $color = $color->getBaseColor();
+        }
+
+        $rgb = $color->toRgb();
+
+        $colorKey = sprintf('%02X%02X%02X%02X', $rgb->getRed(), $rgb->getGreen(), $rgb->getBlue(), $alpha);
+
+        if (! isset($this->colors[$colorKey])) {
+            $colorId = imagecolorallocatealpha(
+                $this->image,
+                $rgb->getRed(),
+                $rgb->getGreen(),
+                $rgb->getBlue(),
+                (int)((100 - $alpha) / 100 * 127) // Alpha for GD is in range 0 (opaque) - 127 (transparent)
+            );
+
+            if ($colorId === false) {
+                throw new RuntimeException('Failed to create color: #' . $colorKey);
+            }
+
+            $this->colors[$colorKey] = $colorId;
+        }
+
+        return $this->colors[$colorKey];
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Image/EpsImageBackEnd.php

@@ -0,0 +1,373 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Image;
+
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Renderer\Color\Alpha;
+use BaconQrCode\Renderer\Color\Cmyk;
+use BaconQrCode\Renderer\Color\ColorInterface;
+use BaconQrCode\Renderer\Color\Gray;
+use BaconQrCode\Renderer\Color\Rgb;
+use BaconQrCode\Renderer\Path\Close;
+use BaconQrCode\Renderer\Path\Curve;
+use BaconQrCode\Renderer\Path\EllipticArc;
+use BaconQrCode\Renderer\Path\Line;
+use BaconQrCode\Renderer\Path\Move;
+use BaconQrCode\Renderer\Path\Path;
+use BaconQrCode\Renderer\RendererStyle\Gradient;
+use BaconQrCode\Renderer\RendererStyle\GradientType;
+
+final class EpsImageBackEnd implements ImageBackEndInterface
+{
+    private const PRECISION = 3;
+
+    private ?string $eps;
+
+    public function new(int $size, ColorInterface $backgroundColor) : void
+    {
+        $this->eps = "%!PS-Adobe-3.0 EPSF-3.0\n"
+            . "%%Creator: BaconQrCode\n"
+            . sprintf("%%%%BoundingBox: 0 0 %d %d \n", $size, $size)
+            . "%%BeginProlog\n"
+            . "save\n"
+            . "50 dict begin\n"
+            . "/q { gsave } bind def\n"
+            . "/Q { grestore } bind def\n"
+            . "/s { scale } bind def\n"
+            . "/t { translate } bind def\n"
+            . "/r { rotate } bind def\n"
+            . "/n { newpath } bind def\n"
+            . "/m { moveto } bind def\n"
+            . "/l { lineto } bind def\n"
+            . "/c { curveto } bind def\n"
+            . "/z { closepath } bind def\n"
+            . "/f { eofill } bind def\n"
+            . "/rgb { setrgbcolor } bind def\n"
+            . "/cmyk { setcmykcolor } bind def\n"
+            . "/gray { setgray } bind def\n"
+            . "%%EndProlog\n"
+            . "1 -1 s\n"
+            . sprintf("0 -%d t\n", $size);
+
+        if ($backgroundColor instanceof Alpha && 0 === $backgroundColor->getAlpha()) {
+            return;
+        }
+
+        $this->eps .= wordwrap(
+            '0 0 m'
+            . sprintf(' %s 0 l', (string) $size)
+            . sprintf(' %s %s l', (string) $size, (string) $size)
+            . sprintf(' 0 %s l', (string) $size)
+            . ' z'
+            . ' ' .$this->getColorSetString($backgroundColor) . " f\n",
+            75,
+            "\n "
+        );
+    }
+
+    public function scale(float $size) : void
+    {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->eps .= sprintf("%1\$s %1\$s s\n", round($size, self::PRECISION));
+    }
+
+    public function translate(float $x, float $y) : void
+    {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->eps .= sprintf("%s %s t\n", round($x, self::PRECISION), round($y, self::PRECISION));
+    }
+
+    public function rotate(int $degrees) : void
+    {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->eps .= sprintf("%d r\n", $degrees);
+    }
+
+    public function push() : void
+    {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->eps .= "q\n";
+    }
+
+    public function pop() : void
+    {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->eps .= "Q\n";
+    }
+
+    public function drawPathWithColor(Path $path, ColorInterface $color) : void
+    {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $fromX = 0;
+        $fromY = 0;
+        $this->eps .= wordwrap(
+            'n '
+            . $this->drawPathOperations($path, $fromX, $fromY)
+            . ' ' . $this->getColorSetString($color) . " f\n",
+            75,
+            "\n "
+        );
+    }
+
+    public function drawPathWithGradient(
+        Path $path,
+        Gradient $gradient,
+        float $x,
+        float $y,
+        float $width,
+        float $height
+    ) : void {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $fromX = 0;
+        $fromY = 0;
+        $this->eps .= wordwrap(
+            'q n ' . $this->drawPathOperations($path, $fromX, $fromY) . "\n",
+            75,
+            "\n "
+        );
+
+        $this->createGradientFill($gradient, $x, $y, $width, $height);
+    }
+
+    public function done() : string
+    {
+        if (null === $this->eps) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->eps .= "%%TRAILER\nend restore\n%%EOF";
+        $blob = $this->eps;
+        $this->eps = null;
+
+        return $blob;
+    }
+
+    private function drawPathOperations(Iterable $ops, &$fromX, &$fromY) : string
+    {
+        $pathData = [];
+
+        foreach ($ops as $op) {
+            switch (true) {
+                case $op instanceof Move:
+                    $fromX = $toX = round($op->getX(), self::PRECISION);
+                    $fromY = $toY = round($op->getY(), self::PRECISION);
+                    $pathData[] = sprintf('%s %s m', $toX, $toY);
+                    break;
+
+                case $op instanceof Line:
+                    $fromX = $toX = round($op->getX(), self::PRECISION);
+                    $fromY = $toY = round($op->getY(), self::PRECISION);
+                    $pathData[] = sprintf('%s %s l', $toX, $toY);
+                    break;
+
+                case $op instanceof EllipticArc:
+                    $pathData[] = $this->drawPathOperations($op->toCurves($fromX, $fromY), $fromX, $fromY);
+                    break;
+
+                case $op instanceof Curve:
+                    $x1 = round($op->getX1(), self::PRECISION);
+                    $y1 = round($op->getY1(), self::PRECISION);
+                    $x2 = round($op->getX2(), self::PRECISION);
+                    $y2 = round($op->getY2(), self::PRECISION);
+                    $fromX = $x3 = round($op->getX3(), self::PRECISION);
+                    $fromY = $y3 = round($op->getY3(), self::PRECISION);
+                    $pathData[] = sprintf('%s %s %s %s %s %s c', $x1, $y1, $x2, $y2, $x3, $y3);
+                    break;
+
+                case $op instanceof Close:
+                    $pathData[] = 'z';
+                    break;
+
+                default:
+                    throw new RuntimeException('Unexpected draw operation: ' . get_class($op));
+            }
+        }
+
+        return implode(' ', $pathData);
+    }
+
+    private function createGradientFill(Gradient $gradient, float $x, float $y, float $width, float $height) : void
+    {
+        $startColor = $gradient->getStartColor();
+        $endColor = $gradient->getEndColor();
+
+        if ($startColor instanceof Alpha) {
+            $startColor = $startColor->getBaseColor();
+        }
+
+        $startColorType = get_class($startColor);
+
+        if (! in_array($startColorType, [Rgb::class, Cmyk::class, Gray::class])) {
+            $startColorType = Cmyk::class;
+            $startColor = $startColor->toCmyk();
+        }
+
+        if (get_class($endColor) !== $startColorType) {
+            switch ($startColorType) {
+                case Cmyk::class:
+                    $endColor = $endColor->toCmyk();
+                    break;
+
+                case Rgb::class:
+                    $endColor = $endColor->toRgb();
+                    break;
+
+                case Gray::class:
+                    $endColor = $endColor->toGray();
+                    break;
+            }
+        }
+
+        $this->eps .= "eoclip\n<<\n";
+
+        if ($gradient->getType() === GradientType::RADIAL()) {
+            $this->eps .= " /ShadingType 3\n";
+        } else {
+            $this->eps .= " /ShadingType 2\n";
+        }
+
+        $this->eps .= " /Extend [ true true ]\n"
+            . " /AntiAlias true\n";
+
+        switch ($startColorType) {
+            case Cmyk::class:
+                $this->eps .= " /ColorSpace /DeviceCMYK\n";
+                break;
+
+            case Rgb::class:
+                $this->eps .= " /ColorSpace /DeviceRGB\n";
+                break;
+
+            case Gray::class:
+                $this->eps .= " /ColorSpace /DeviceGray\n";
+                break;
+        }
+
+        switch ($gradient->getType()) {
+            case GradientType::HORIZONTAL():
+                $this->eps .= sprintf(
+                    " /Coords [ %s %s %s %s ]\n",
+                    round($x, self::PRECISION),
+                    round($y, self::PRECISION),
+                    round($x + $width, self::PRECISION),
+                    round($y, self::PRECISION)
+                );
+                break;
+
+            case GradientType::VERTICAL():
+                $this->eps .= sprintf(
+                    " /Coords [ %s %s %s %s ]\n",
+                    round($x, self::PRECISION),
+                    round($y, self::PRECISION),
+                    round($x, self::PRECISION),
+                    round($y + $height, self::PRECISION)
+                );
+                break;
+
+            case GradientType::DIAGONAL():
+                $this->eps .= sprintf(
+                    " /Coords [ %s %s %s %s ]\n",
+                    round($x, self::PRECISION),
+                    round($y, self::PRECISION),
+                    round($x + $width, self::PRECISION),
+                    round($y + $height, self::PRECISION)
+                );
+                break;
+
+            case GradientType::INVERSE_DIAGONAL():
+                $this->eps .= sprintf(
+                    " /Coords [ %s %s %s %s ]\n",
+                    round($x, self::PRECISION),
+                    round($y + $height, self::PRECISION),
+                    round($x + $width, self::PRECISION),
+                    round($y, self::PRECISION)
+                );
+                break;
+
+            case GradientType::RADIAL():
+                $centerX = ($x + $width) / 2;
+                $centerY = ($y + $height) / 2;
+
+                $this->eps .= sprintf(
+                    " /Coords [ %s %s 0 %s %s %s ]\n",
+                    round($centerX, self::PRECISION),
+                    round($centerY, self::PRECISION),
+                    round($centerX, self::PRECISION),
+                    round($centerY, self::PRECISION),
+                    round(max($width, $height) / 2, self::PRECISION)
+                );
+                break;
+        }
+
+        $this->eps .= " /Function\n"
+            . " <<\n"
+            . "  /FunctionType 2\n"
+            . "  /Domain [ 0 1 ]\n"
+            . sprintf("  /C0 [ %s ]\n", $this->getColorString($startColor))
+            . sprintf("  /C1 [ %s ]\n", $this->getColorString($endColor))
+            . "  /N 1\n"
+            . " >>\n>>\nshfill\nQ\n";
+    }
+
+    private function getColorSetString(ColorInterface $color) : string
+    {
+        if ($color instanceof Rgb) {
+            return $this->getColorString($color) . ' rgb';
+        }
+
+        if ($color instanceof Cmyk) {
+            return $this->getColorString($color) . ' cmyk';
+        }
+
+        if ($color instanceof Gray) {
+            return $this->getColorString($color) . ' gray';
+        }
+
+        return $this->getColorSetString($color->toCmyk());
+    }
+
+    private function getColorString(ColorInterface $color) : string
+    {
+        if ($color instanceof Rgb) {
+            return sprintf('%s %s %s', $color->getRed() / 255, $color->getGreen() / 255, $color->getBlue() / 255);
+        }
+
+        if ($color instanceof Cmyk) {
+            return sprintf(
+                '%s %s %s %s',
+                $color->getCyan() / 100,
+                $color->getMagenta() / 100,
+                $color->getYellow() / 100,
+                $color->getBlack() / 100
+            );
+        }
+
+        if ($color instanceof Gray) {
+            return sprintf('%s', $color->getGray() / 100);
+        }
+
+        return $this->getColorString($color->toCmyk());
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Image/ImageBackEndInterface.php

@@ -0,0 +1,87 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Image;
+
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Renderer\Color\ColorInterface;
+use BaconQrCode\Renderer\Path\Path;
+use BaconQrCode\Renderer\RendererStyle\Gradient;
+
+/**
+ * Interface for back ends able to to produce path based images.
+ */
+interface ImageBackEndInterface
+{
+    /**
+     * Starts a new image.
+     *
+     * If a previous image was already started, previous data get erased.
+     */
+    public function new(int $size, ColorInterface $backgroundColor) : void;
+
+    /**
+     * Transforms all following drawing operation coordinates by scaling them by a given factor.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function scale(float $size) : void;
+
+    /**
+     * Transforms all following drawing operation coordinates by translating them by a given amount.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function translate(float $x, float $y) : void;
+
+    /**
+     * Transforms all following drawing operation coordinates by rotating them by a given amount.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function rotate(int $degrees) : void;
+
+    /**
+     * Pushes the current coordinate transformation onto a stack.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function push() : void;
+
+    /**
+     * Pops the last coordinate transformation from a stack.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function pop() : void;
+
+    /**
+     * Draws a path with a given color.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function drawPathWithColor(Path $path, ColorInterface $color) : void;
+
+    /**
+     * Draws a path with a given gradient which spans the box described by the position and size.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function drawPathWithGradient(
+        Path $path,
+        Gradient $gradient,
+        float $x,
+        float $y,
+        float $width,
+        float $height
+    ) : void;
+
+    /**
+     * Ends the image drawing operation and returns the resulting blob.
+     *
+     * This should reset the state of the back end and thus this method should only be callable once per image.
+     *
+     * @throws RuntimeException if no image was started yet.
+     */
+    public function done() : string;
+}

vendor/bacon/bacon-qr-code/src/Renderer/Image/ImagickImageBackEnd.php

@@ -0,0 +1,318 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Image;
+
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Renderer\Color\Alpha;
+use BaconQrCode\Renderer\Color\Cmyk;
+use BaconQrCode\Renderer\Color\ColorInterface;
+use BaconQrCode\Renderer\Color\Gray;
+use BaconQrCode\Renderer\Color\Rgb;
+use BaconQrCode\Renderer\Path\Close;
+use BaconQrCode\Renderer\Path\Curve;
+use BaconQrCode\Renderer\Path\EllipticArc;
+use BaconQrCode\Renderer\Path\Line;
+use BaconQrCode\Renderer\Path\Move;
+use BaconQrCode\Renderer\Path\Path;
+use BaconQrCode\Renderer\RendererStyle\Gradient;
+use BaconQrCode\Renderer\RendererStyle\GradientType;
+use Imagick;
+use ImagickDraw;
+use ImagickPixel;
+
+final class ImagickImageBackEnd implements ImageBackEndInterface
+{
+    private string $imageFormat;
+
+    private int $compressionQuality;
+
+    private ?Imagick $image;
+
+    private ?ImagickDraw $draw;
+
+    private ?int $gradientCount;
+
+    /**
+     * @var TransformationMatrix[]|null
+     */
+    private ?array $matrices;
+
+    private ?int $matrixIndex;
+
+    public function __construct(string $imageFormat = 'png', int $compressionQuality = 100)
+    {
+        if (! class_exists(Imagick::class)) {
+            throw new RuntimeException('You need to install the imagick extension to use this back end');
+        }
+
+        $this->imageFormat = $imageFormat;
+        $this->compressionQuality = $compressionQuality;
+    }
+
+    public function new(int $size, ColorInterface $backgroundColor) : void
+    {
+        $this->image = new Imagick();
+        $this->image->newImage($size, $size, $this->getColorPixel($backgroundColor));
+        $this->image->setImageFormat($this->imageFormat);
+        $this->image->setCompressionQuality($this->compressionQuality);
+        $this->draw = new ImagickDraw();
+        $this->gradientCount = 0;
+        $this->matrices = [new TransformationMatrix()];
+        $this->matrixIndex = 0;
+    }
+
+    public function scale(float $size) : void
+    {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->draw->scale($size, $size);
+        $this->matrices[$this->matrixIndex] = $this->matrices[$this->matrixIndex]
+            ->multiply(TransformationMatrix::scale($size));
+    }
+
+    public function translate(float $x, float $y) : void
+    {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->draw->translate($x, $y);
+        $this->matrices[$this->matrixIndex] = $this->matrices[$this->matrixIndex]
+            ->multiply(TransformationMatrix::translate($x, $y));
+    }
+
+    public function rotate(int $degrees) : void
+    {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->draw->rotate($degrees);
+        $this->matrices[$this->matrixIndex] = $this->matrices[$this->matrixIndex]
+            ->multiply(TransformationMatrix::rotate($degrees));
+    }
+
+    public function push() : void
+    {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->draw->push();
+        $this->matrices[++$this->matrixIndex] = $this->matrices[$this->matrixIndex - 1];
+    }
+
+    public function pop() : void
+    {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->draw->pop();
+        unset($this->matrices[$this->matrixIndex--]);
+    }
+
+    public function drawPathWithColor(Path $path, ColorInterface $color) : void
+    {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->draw->setFillColor($this->getColorPixel($color));
+        $this->drawPath($path);
+    }
+
+    public function drawPathWithGradient(
+        Path $path,
+        Gradient $gradient,
+        float $x,
+        float $y,
+        float $width,
+        float $height
+    ) : void {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->draw->setFillPatternURL('#' . $this->createGradientFill($gradient, $x, $y, $width, $height));
+        $this->drawPath($path);
+    }
+
+    public function done() : string
+    {
+        if (null === $this->draw) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->image->drawImage($this->draw);
+        $blob = $this->image->getImageBlob();
+        $this->draw->clear();
+        $this->image->clear();
+        $this->draw = null;
+        $this->image = null;
+        $this->gradientCount = null;
+
+        return $blob;
+    }
+
+    private function drawPath(Path $path) : void
+    {
+        $this->draw->pathStart();
+
+        foreach ($path as $op) {
+            switch (true) {
+                case $op instanceof Move:
+                    $this->draw->pathMoveToAbsolute($op->getX(), $op->getY());
+                    break;
+
+                case $op instanceof Line:
+                    $this->draw->pathLineToAbsolute($op->getX(), $op->getY());
+                    break;
+
+                case $op instanceof EllipticArc:
+                    $this->draw->pathEllipticArcAbsolute(
+                        $op->getXRadius(),
+                        $op->getYRadius(),
+                        $op->getXAxisAngle(),
+                        $op->isLargeArc(),
+                        $op->isSweep(),
+                        $op->getX(),
+                        $op->getY()
+                    );
+                    break;
+
+                case $op instanceof Curve:
+                    $this->draw->pathCurveToAbsolute(
+                        $op->getX1(),
+                        $op->getY1(),
+                        $op->getX2(),
+                        $op->getY2(),
+                        $op->getX3(),
+                        $op->getY3()
+                    );
+                    break;
+
+                case $op instanceof Close:
+                    $this->draw->pathClose();
+                    break;
+
+                default:
+                    throw new RuntimeException('Unexpected draw operation: ' . get_class($op));
+            }
+        }
+
+        $this->draw->pathFinish();
+    }
+
+    private function createGradientFill(Gradient $gradient, float $x, float $y, float $width, float $height) : string
+    {
+        list($width, $height) = $this->matrices[$this->matrixIndex]->apply($width, $height);
+
+        $startColor = $this->getColorPixel($gradient->getStartColor())->getColorAsString();
+        $endColor = $this->getColorPixel($gradient->getEndColor())->getColorAsString();
+        $gradientImage = new Imagick();
+
+        switch ($gradient->getType()) {
+            case GradientType::HORIZONTAL():
+                $gradientImage->newPseudoImage((int) $height, (int) $width, sprintf(
+                    'gradient:%s-%s',
+                    $startColor,
+                    $endColor
+                ));
+                $gradientImage->rotateImage('transparent', -90);
+                break;
+
+            case GradientType::VERTICAL():
+                $gradientImage->newPseudoImage((int) $width, (int) $height, sprintf(
+                    'gradient:%s-%s',
+                    $startColor,
+                    $endColor
+                ));
+                break;
+
+            case GradientType::DIAGONAL():
+            case GradientType::INVERSE_DIAGONAL():
+                $gradientImage->newPseudoImage((int) ($width * sqrt(2)), (int) ($height * sqrt(2)), sprintf(
+                    'gradient:%s-%s',
+                    $startColor,
+                    $endColor
+                ));
+
+                if (GradientType::DIAGONAL() === $gradient->getType()) {
+                    $gradientImage->rotateImage('transparent', -45);
+                } else {
+                    $gradientImage->rotateImage('transparent', -135);
+                }
+
+                $rotatedWidth = $gradientImage->getImageWidth();
+                $rotatedHeight = $gradientImage->getImageHeight();
+
+                $gradientImage->setImagePage($rotatedWidth, $rotatedHeight, 0, 0);
+                $gradientImage->cropImage(
+                    intdiv($rotatedWidth, 2) - 2,
+                    intdiv($rotatedHeight, 2) - 2,
+                    intdiv($rotatedWidth, 4) + 1,
+                    intdiv($rotatedWidth, 4) + 1
+                );
+                break;
+
+            case GradientType::RADIAL():
+                $gradientImage->newPseudoImage((int) $width, (int) $height, sprintf(
+                    'radial-gradient:%s-%s',
+                    $startColor,
+                    $endColor
+                ));
+                break;
+        }
+
+        $id = sprintf('g%d', ++$this->gradientCount);
+        $this->draw->pushPattern($id, 0, 0, $width, $height);
+        $this->draw->composite(Imagick::COMPOSITE_COPY, 0, 0, $width, $height, $gradientImage);
+        $this->draw->popPattern();
+        return $id;
+    }
+
+    private function getColorPixel(ColorInterface $color) : ImagickPixel
+    {
+        $alpha = 100;
+
+        if ($color instanceof Alpha) {
+            $alpha = $color->getAlpha();
+            $color = $color->getBaseColor();
+        }
+
+        if ($color instanceof Rgb) {
+            return new ImagickPixel(sprintf(
+                'rgba(%d, %d, %d, %F)',
+                $color->getRed(),
+                $color->getGreen(),
+                $color->getBlue(),
+                $alpha / 100
+            ));
+        }
+
+        if ($color instanceof Cmyk) {
+            return new ImagickPixel(sprintf(
+                'cmyka(%d, %d, %d, %d, %F)',
+                $color->getCyan(),
+                $color->getMagenta(),
+                $color->getYellow(),
+                $color->getBlack(),
+                $alpha / 100
+            ));
+        }
+
+        if ($color instanceof Gray) {
+            return new ImagickPixel(sprintf(
+                'graya(%d%%, %F)',
+                $color->getGray(),
+                $alpha / 100
+            ));
+        }
+
+        return $this->getColorPixel(new Alpha($alpha, $color->toRgb()));
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Image/SvgImageBackEnd.php

@@ -0,0 +1,363 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Image;
+
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Renderer\Color\Alpha;
+use BaconQrCode\Renderer\Color\ColorInterface;
+use BaconQrCode\Renderer\Path\Close;
+use BaconQrCode\Renderer\Path\Curve;
+use BaconQrCode\Renderer\Path\EllipticArc;
+use BaconQrCode\Renderer\Path\Line;
+use BaconQrCode\Renderer\Path\Move;
+use BaconQrCode\Renderer\Path\Path;
+use BaconQrCode\Renderer\RendererStyle\Gradient;
+use BaconQrCode\Renderer\RendererStyle\GradientType;
+use XMLWriter;
+
+final class SvgImageBackEnd implements ImageBackEndInterface
+{
+    private const PRECISION = 3;
+    private const SCALE_FORMAT = 'scale(%.' . self::PRECISION . 'F)';
+    private const TRANSLATE_FORMAT = 'translate(%.' . self::PRECISION . 'F,%.' . self::PRECISION . 'F)';
+
+    private ?XMLWriter $xmlWriter;
+
+    private ?array $stack;
+
+    private ?int $currentStack;
+
+    private ?int $gradientCount;
+
+    public function __construct()
+    {
+        if (! class_exists(XMLWriter::class)) {
+            throw new RuntimeException('You need to install the libxml extension to use this back end');
+        }
+    }
+
+    public function new(int $size, ColorInterface $backgroundColor) : void
+    {
+        $this->xmlWriter = new XMLWriter();
+        $this->xmlWriter->openMemory();
+
+        $this->xmlWriter->startDocument('1.0', 'UTF-8');
+        $this->xmlWriter->startElement('svg');
+        $this->xmlWriter->writeAttribute('xmlns', 'http://www.w3.org/2000/svg');
+        $this->xmlWriter->writeAttribute('version', '1.1');
+        $this->xmlWriter->writeAttribute('width', (string) $size);
+        $this->xmlWriter->writeAttribute('height', (string) $size);
+        $this->xmlWriter->writeAttribute('viewBox', '0 0 '. $size . ' ' . $size);
+
+        $this->gradientCount = 0;
+        $this->currentStack = 0;
+        $this->stack[0] = 0;
+
+        $alpha = 1;
+
+        if ($backgroundColor instanceof Alpha) {
+            $alpha = $backgroundColor->getAlpha() / 100;
+        }
+
+        if (0 === $alpha) {
+            return;
+        }
+
+        $this->xmlWriter->startElement('rect');
+        $this->xmlWriter->writeAttribute('x', '0');
+        $this->xmlWriter->writeAttribute('y', '0');
+        $this->xmlWriter->writeAttribute('width', (string) $size);
+        $this->xmlWriter->writeAttribute('height', (string) $size);
+        $this->xmlWriter->writeAttribute('fill', $this->getColorString($backgroundColor));
+
+        if ($alpha < 1) {
+            $this->xmlWriter->writeAttribute('fill-opacity', (string) $alpha);
+        }
+
+        $this->xmlWriter->endElement();
+    }
+
+    public function scale(float $size) : void
+    {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->xmlWriter->startElement('g');
+        $this->xmlWriter->writeAttribute(
+            'transform',
+            sprintf(self::SCALE_FORMAT, round($size, self::PRECISION))
+        );
+        ++$this->stack[$this->currentStack];
+    }
+
+    public function translate(float $x, float $y) : void
+    {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->xmlWriter->startElement('g');
+        $this->xmlWriter->writeAttribute(
+            'transform',
+            sprintf(self::TRANSLATE_FORMAT, round($x, self::PRECISION), round($y, self::PRECISION))
+        );
+        ++$this->stack[$this->currentStack];
+    }
+
+    public function rotate(int $degrees) : void
+    {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->xmlWriter->startElement('g');
+        $this->xmlWriter->writeAttribute('transform', sprintf('rotate(%d)', $degrees));
+        ++$this->stack[$this->currentStack];
+    }
+
+    public function push() : void
+    {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $this->xmlWriter->startElement('g');
+        $this->stack[] = 1;
+        ++$this->currentStack;
+    }
+
+    public function pop() : void
+    {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        for ($i = 0; $i < $this->stack[$this->currentStack]; ++$i) {
+            $this->xmlWriter->endElement();
+        }
+
+        array_pop($this->stack);
+        --$this->currentStack;
+    }
+
+    public function drawPathWithColor(Path $path, ColorInterface $color) : void
+    {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $alpha = 1;
+
+        if ($color instanceof Alpha) {
+            $alpha = $color->getAlpha() / 100;
+        }
+
+        $this->startPathElement($path);
+        $this->xmlWriter->writeAttribute('fill', $this->getColorString($color));
+
+        if ($alpha < 1) {
+            $this->xmlWriter->writeAttribute('fill-opacity', (string) $alpha);
+        }
+
+        $this->xmlWriter->endElement();
+    }
+
+    public function drawPathWithGradient(
+        Path $path,
+        Gradient $gradient,
+        float $x,
+        float $y,
+        float $width,
+        float $height
+    ) : void {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        $gradientId = $this->createGradientFill($gradient, $x, $y, $width, $height);
+        $this->startPathElement($path);
+        $this->xmlWriter->writeAttribute('fill', 'url(#' . $gradientId . ')');
+        $this->xmlWriter->endElement();
+    }
+
+    public function done() : string
+    {
+        if (null === $this->xmlWriter) {
+            throw new RuntimeException('No image has been started');
+        }
+
+        foreach ($this->stack as $openElements) {
+            for ($i = $openElements; $i > 0; --$i) {
+                $this->xmlWriter->endElement();
+            }
+        }
+
+        $this->xmlWriter->endDocument();
+        $blob = $this->xmlWriter->outputMemory(true);
+        $this->xmlWriter = null;
+        $this->stack = null;
+        $this->currentStack = null;
+        $this->gradientCount = null;
+
+        return $blob;
+    }
+
+    private function startPathElement(Path $path) : void
+    {
+        $pathData = [];
+
+        foreach ($path as $op) {
+            switch (true) {
+                case $op instanceof Move:
+                    $pathData[] = sprintf(
+                        'M%s %s',
+                        round($op->getX(), self::PRECISION),
+                        round($op->getY(), self::PRECISION)
+                    );
+                    break;
+
+                case $op instanceof Line:
+                    $pathData[] = sprintf(
+                        'L%s %s',
+                        round($op->getX(), self::PRECISION),
+                        round($op->getY(), self::PRECISION)
+                    );
+                    break;
+
+                case $op instanceof EllipticArc:
+                    $pathData[] = sprintf(
+                        'A%s %s %s %u %u %s %s',
+                        round($op->getXRadius(), self::PRECISION),
+                        round($op->getYRadius(), self::PRECISION),
+                        round($op->getXAxisAngle(), self::PRECISION),
+                        $op->isLargeArc(),
+                        $op->isSweep(),
+                        round($op->getX(), self::PRECISION),
+                        round($op->getY(), self::PRECISION)
+                    );
+                    break;
+
+                case $op instanceof Curve:
+                    $pathData[] = sprintf(
+                        'C%s %s %s %s %s %s',
+                        round($op->getX1(), self::PRECISION),
+                        round($op->getY1(), self::PRECISION),
+                        round($op->getX2(), self::PRECISION),
+                        round($op->getY2(), self::PRECISION),
+                        round($op->getX3(), self::PRECISION),
+                        round($op->getY3(), self::PRECISION)
+                    );
+                    break;
+
+                case $op instanceof Close:
+                    $pathData[] = 'Z';
+                    break;
+
+                default:
+                    throw new RuntimeException('Unexpected draw operation: ' . get_class($op));
+            }
+        }
+
+        $this->xmlWriter->startElement('path');
+        $this->xmlWriter->writeAttribute('fill-rule', 'evenodd');
+        $this->xmlWriter->writeAttribute('d', implode('', $pathData));
+    }
+
+    private function createGradientFill(Gradient $gradient, float $x, float $y, float $width, float $height) : string
+    {
+        $this->xmlWriter->startElement('defs');
+
+        $startColor = $gradient->getStartColor();
+        $endColor = $gradient->getEndColor();
+
+        if ($gradient->getType() === GradientType::RADIAL()) {
+            $this->xmlWriter->startElement('radialGradient');
+        } else {
+            $this->xmlWriter->startElement('linearGradient');
+        }
+
+        $this->xmlWriter->writeAttribute('gradientUnits', 'userSpaceOnUse');
+
+        switch ($gradient->getType()) {
+            case GradientType::HORIZONTAL():
+                $this->xmlWriter->writeAttribute('x1', (string) round($x, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y1', (string) round($y, self::PRECISION));
+                $this->xmlWriter->writeAttribute('x2', (string) round($x + $width, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y2', (string) round($y, self::PRECISION));
+                break;
+
+            case GradientType::VERTICAL():
+                $this->xmlWriter->writeAttribute('x1', (string) round($x, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y1', (string) round($y, self::PRECISION));
+                $this->xmlWriter->writeAttribute('x2', (string) round($x, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y2', (string) round($y + $height, self::PRECISION));
+                break;
+
+            case GradientType::DIAGONAL():
+                $this->xmlWriter->writeAttribute('x1', (string) round($x, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y1', (string) round($y, self::PRECISION));
+                $this->xmlWriter->writeAttribute('x2', (string) round($x + $width, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y2', (string) round($y + $height, self::PRECISION));
+                break;
+
+            case GradientType::INVERSE_DIAGONAL():
+                $this->xmlWriter->writeAttribute('x1', (string) round($x, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y1', (string) round($y + $height, self::PRECISION));
+                $this->xmlWriter->writeAttribute('x2', (string) round($x + $width, self::PRECISION));
+                $this->xmlWriter->writeAttribute('y2', (string) round($y, self::PRECISION));
+                break;
+
+            case GradientType::RADIAL():
+                $this->xmlWriter->writeAttribute('cx', (string) round(($x + $width) / 2, self::PRECISION));
+                $this->xmlWriter->writeAttribute('cy', (string) round(($y + $height) / 2, self::PRECISION));
+                $this->xmlWriter->writeAttribute('r', (string) round(max($width, $height) / 2, self::PRECISION));
+                break;
+        }
+
+        $toBeHashed = $this->getColorString($startColor) . $this->getColorString($endColor) . $gradient->getType();
+        if ($startColor instanceof Alpha) {
+            $toBeHashed .= (string) $startColor->getAlpha();
+        }
+        $id = sprintf('g%d-%s', ++$this->gradientCount, hash('xxh64', $toBeHashed));
+        $this->xmlWriter->writeAttribute('id', $id);
+
+        $this->xmlWriter->startElement('stop');
+        $this->xmlWriter->writeAttribute('offset', '0%');
+        $this->xmlWriter->writeAttribute('stop-color', $this->getColorString($startColor));
+
+        if ($startColor instanceof Alpha) {
+            $this->xmlWriter->writeAttribute('stop-opacity', (string) $startColor->getAlpha());
+        }
+
+        $this->xmlWriter->endElement();
+
+        $this->xmlWriter->startElement('stop');
+        $this->xmlWriter->writeAttribute('offset', '100%');
+        $this->xmlWriter->writeAttribute('stop-color', $this->getColorString($endColor));
+
+        if ($endColor instanceof Alpha) {
+            $this->xmlWriter->writeAttribute('stop-opacity', (string) $endColor->getAlpha());
+        }
+
+        $this->xmlWriter->endElement();
+
+        $this->xmlWriter->endElement();
+        $this->xmlWriter->endElement();
+
+        return $id;
+    }
+
+    private function getColorString(ColorInterface $color) : string
+    {
+        $color = $color->toRgb();
+
+        return sprintf(
+            '#%02x%02x%02x',
+            $color->getRed(),
+            $color->getGreen(),
+            $color->getBlue()
+        );
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Image/TransformationMatrix.php

@@ -0,0 +1,68 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Image;
+
+final class TransformationMatrix
+{
+    /**
+     * @var float[]
+     */
+    private array $values;
+
+    public function __construct()
+    {
+        $this->values = [1, 0, 0, 1, 0, 0];
+    }
+
+    public function multiply(self $other) : self
+    {
+        $matrix = new self();
+        $matrix->values[0] = $this->values[0] * $other->values[0] + $this->values[2] * $other->values[1];
+        $matrix->values[1] = $this->values[1] * $other->values[0] + $this->values[3] * $other->values[1];
+        $matrix->values[2] = $this->values[0] * $other->values[2] + $this->values[2] * $other->values[3];
+        $matrix->values[3] = $this->values[1] * $other->values[2] + $this->values[3] * $other->values[3];
+        $matrix->values[4] = $this->values[0] * $other->values[4] + $this->values[2] * $other->values[5]
+            + $this->values[4];
+        $matrix->values[5] = $this->values[1] * $other->values[4] + $this->values[3] * $other->values[5]
+            + $this->values[5];
+
+        return $matrix;
+    }
+
+    public static function scale(float $size) : self
+    {
+        $matrix = new self();
+        $matrix->values = [$size, 0, 0, $size, 0, 0];
+        return $matrix;
+    }
+
+    public static function translate(float $x, float $y) : self
+    {
+        $matrix = new self();
+        $matrix->values = [1, 0, 0, 1, $x, $y];
+        return $matrix;
+    }
+
+    public static function rotate(int $degrees) : self
+    {
+        $matrix = new self();
+        $rad = deg2rad($degrees);
+        $matrix->values = [cos($rad), sin($rad), -sin($rad), cos($rad), 0, 0];
+        return $matrix;
+    }
+
+
+    /**
+     * Applies this matrix onto a point and returns the resulting viewport point.
+     *
+     * @return float[]
+     */
+    public function apply(float $x, float $y) : array
+    {
+        return [
+            $x * $this->values[0] + $y * $this->values[2] + $this->values[4],
+            $x * $this->values[1] + $y * $this->values[3] + $this->values[5],
+        ];
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/ImageRenderer.php

@@ -0,0 +1,150 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer;
+
+use BaconQrCode\Encoder\MatrixUtil;
+use BaconQrCode\Encoder\QrCode;
+use BaconQrCode\Exception\InvalidArgumentException;
+use BaconQrCode\Renderer\Image\ImageBackEndInterface;
+use BaconQrCode\Renderer\Path\Path;
+use BaconQrCode\Renderer\RendererStyle\EyeFill;
+use BaconQrCode\Renderer\RendererStyle\RendererStyle;
+
+final class ImageRenderer implements RendererInterface
+{
+    public function __construct(
+        private readonly RendererStyle         $rendererStyle,
+        private readonly ImageBackEndInterface $imageBackEnd
+    ) {
+    }
+
+    /**
+     * @throws InvalidArgumentException if matrix width doesn't match height
+     */
+    public function render(QrCode $qrCode) : string
+    {
+        $size = $this->rendererStyle->getSize();
+        $margin = $this->rendererStyle->getMargin();
+        $matrix = $qrCode->getMatrix();
+        $matrixSize = $matrix->getWidth();
+
+        if ($matrixSize !== $matrix->getHeight()) {
+            throw new InvalidArgumentException('Matrix must have the same width and height');
+        }
+
+        $totalSize = $matrixSize + ($margin * 2);
+        $moduleSize = $size / $totalSize;
+        $fill = $this->rendererStyle->getFill();
+
+        $this->imageBackEnd->new($size, $fill->getBackgroundColor());
+        $this->imageBackEnd->scale((float) $moduleSize);
+        $this->imageBackEnd->translate((float) $margin, (float) $margin);
+
+        $module = $this->rendererStyle->getModule();
+        $moduleMatrix = clone $matrix;
+        MatrixUtil::removePositionDetectionPatterns($moduleMatrix);
+        $modulePath = $this->drawEyes($matrixSize, $module->createPath($moduleMatrix));
+
+        if ($fill->hasGradientFill()) {
+            $this->imageBackEnd->drawPathWithGradient(
+                $modulePath,
+                $fill->getForegroundGradient(),
+                0,
+                0,
+                $matrixSize,
+                $matrixSize
+            );
+        } else {
+            $this->imageBackEnd->drawPathWithColor($modulePath, $fill->getForegroundColor());
+        }
+
+        return $this->imageBackEnd->done();
+    }
+
+    private function drawEyes(int $matrixSize, Path $modulePath) : Path
+    {
+        $fill = $this->rendererStyle->getFill();
+
+        $eye = $this->rendererStyle->getEye();
+        $externalPath = $eye->getExternalPath();
+        $internalPath = $eye->getInternalPath();
+
+        $modulePath = $this->drawEye(
+            $externalPath,
+            $internalPath,
+            $fill->getTopLeftEyeFill(),
+            3.5,
+            3.5,
+            0,
+            $modulePath
+        );
+        $modulePath = $this->drawEye(
+            $externalPath,
+            $internalPath,
+            $fill->getTopRightEyeFill(),
+            $matrixSize - 3.5,
+            3.5,
+            90,
+            $modulePath
+        );
+        $modulePath = $this->drawEye(
+            $externalPath,
+            $internalPath,
+            $fill->getBottomLeftEyeFill(),
+            3.5,
+            $matrixSize - 3.5,
+            -90,
+            $modulePath
+        );
+
+        return $modulePath;
+    }
+
+    private function drawEye(
+        Path $externalPath,
+        Path $internalPath,
+        EyeFill $fill,
+        float $xTranslation,
+        float $yTranslation,
+        int $rotation,
+        Path $modulePath
+    ) : Path {
+        if ($fill->inheritsBothColors()) {
+            return $modulePath
+                ->append(
+                    $externalPath->rotate($rotation)->translate($xTranslation, $yTranslation)
+                )
+                ->append(
+                    $internalPath->rotate($rotation)->translate($xTranslation, $yTranslation)
+                );
+        }
+
+        $this->imageBackEnd->push();
+        $this->imageBackEnd->translate($xTranslation, $yTranslation);
+
+        if (0 !== $rotation) {
+            $this->imageBackEnd->rotate($rotation);
+        }
+
+        if ($fill->inheritsExternalColor()) {
+            $modulePath = $modulePath->append(
+                $externalPath->rotate($rotation)->translate($xTranslation, $yTranslation)
+            );
+        } else {
+            $this->imageBackEnd->drawPathWithColor($externalPath, $fill->getExternalColor());
+        }
+
+        if ($fill->inheritsInternalColor()) {
+            $modulePath = $modulePath->append(
+                $internalPath->rotate($rotation)->translate($xTranslation, $yTranslation)
+            );
+        } else {
+            $this->imageBackEnd->drawPathWithColor($internalPath, $fill->getInternalColor());
+        }
+
+        $this->imageBackEnd->pop();
+
+        return $modulePath;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Module/DotsModule.php

@@ -0,0 +1,56 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Module;
+
+use BaconQrCode\Encoder\ByteMatrix;
+use BaconQrCode\Exception\InvalidArgumentException;
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Renders individual modules as dots.
+ */
+final class DotsModule implements ModuleInterface
+{
+    public const LARGE = 1;
+    public const MEDIUM = .8;
+    public const SMALL = .6;
+
+    public function __construct(private readonly float $size)
+    {
+        if ($size <= 0 || $size > 1) {
+            throw new InvalidArgumentException('Size must between 0 (exclusive) and 1 (inclusive)');
+        }
+    }
+
+    public function createPath(ByteMatrix $matrix) : Path
+    {
+        $width = $matrix->getWidth();
+        $height = $matrix->getHeight();
+        $path = new Path();
+        $halfSize = $this->size / 2;
+        $margin = (1 - $this->size) / 2;
+
+        for ($y = 0; $y < $height; ++$y) {
+            for ($x = 0; $x < $width; ++$x) {
+                if (! $matrix->get($x, $y)) {
+                    continue;
+                }
+
+                $pathX = $x + $margin;
+                $pathY = $y + $margin;
+
+                $path = $path
+                    ->move($pathX + $this->size, $pathY + $halfSize)
+                    ->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX + $halfSize, $pathY + $this->size)
+                    ->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX, $pathY + $halfSize)
+                    ->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX + $halfSize, $pathY)
+                    ->ellipticArc($halfSize, $halfSize, 0, false, true, $pathX + $this->size, $pathY + $halfSize)
+                    ->close()
+                ;
+            }
+        }
+
+        return $path;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Module/EdgeIterator/Edge.php

@@ -0,0 +1,82 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Module\EdgeIterator;
+
+final class Edge
+{
+    /**
+     * @var array<int[]>
+     */
+    private array $points = [];
+
+    /**
+     * @var array<int[]>|null
+     */
+    private ?array $simplifiedPoints = null;
+
+    private int $minX = PHP_INT_MAX;
+
+    private int $minY = PHP_INT_MAX;
+
+    private int $maxX = -1;
+
+    private int $maxY = -1;
+
+    public function __construct(private readonly bool $positive)
+    {
+    }
+
+    public function addPoint(int $x, int $y) : void
+    {
+        $this->points[] = [$x, $y];
+        $this->minX = min($this->minX, $x);
+        $this->minY = min($this->minY, $y);
+        $this->maxX = max($this->maxX, $x);
+        $this->maxY = max($this->maxY, $y);
+    }
+
+    public function isPositive() : bool
+    {
+        return $this->positive;
+    }
+
+    /**
+     * @return array<int[]>
+     */
+    public function getPoints() : array
+    {
+        return $this->points;
+    }
+
+    public function getMaxX() : int
+    {
+        return $this->maxX;
+    }
+
+    public function getSimplifiedPoints() : array
+    {
+        if (null !== $this->simplifiedPoints) {
+            return $this->simplifiedPoints;
+        }
+
+        $points = [];
+        $length = count($this->points);
+
+        for ($i = 0; $i < $length; ++$i) {
+            $previousPoint = $this->points[(0 === $i ? $length : $i) - 1];
+            $nextPoint = $this->points[($length - 1 === $i ? -1 : $i) + 1];
+            $currentPoint = $this->points[$i];
+
+            if (($previousPoint[0] === $currentPoint[0] && $currentPoint[0] === $nextPoint[0])
+                || ($previousPoint[1] === $currentPoint[1] && $currentPoint[1] === $nextPoint[1])
+            ) {
+                continue;
+            }
+
+            $points[] = $currentPoint;
+        }
+
+        return $this->simplifiedPoints = $points;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Module/EdgeIterator/EdgeIterator.php

@@ -0,0 +1,160 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Module\EdgeIterator;
+
+use BaconQrCode\Encoder\ByteMatrix;
+use IteratorAggregate;
+use Traversable;
+
+/**
+ * Edge iterator based on potrace.
+ */
+final class EdgeIterator implements IteratorAggregate
+{
+    /**
+     * @var int[]
+     */
+    private array $bytes = [];
+
+    private ?int $size;
+
+    private int $width;
+
+    private int $height;
+
+    public function __construct(ByteMatrix $matrix)
+    {
+        $this->bytes = iterator_to_array($matrix->getBytes());
+        $this->size = count($this->bytes);
+        $this->width = $matrix->getWidth();
+        $this->height = $matrix->getHeight();
+    }
+
+    /**
+     * @return Traversable<Edge>
+     */
+    public function getIterator() : Traversable
+    {
+        $originalBytes = $this->bytes;
+        $point = $this->findNext(0, 0);
+
+        while (null !== $point) {
+            $edge = $this->findEdge($point[0], $point[1]);
+            $this->xorEdge($edge);
+
+            yield $edge;
+
+            $point = $this->findNext($point[0], $point[1]);
+        }
+
+        $this->bytes = $originalBytes;
+    }
+
+    /**
+     * @return int[]|null
+     */
+    private function findNext(int $x, int $y) : ?array
+    {
+        $i = $this->width * $y + $x;
+
+        while ($i < $this->size && 1 !== $this->bytes[$i]) {
+            ++$i;
+        }
+
+        if ($i < $this->size) {
+            return $this->pointOf($i);
+        }
+
+        return null;
+    }
+
+    private function findEdge(int $x, int $y) : Edge
+    {
+        $edge = new Edge($this->isSet($x, $y));
+        $startX = $x;
+        $startY = $y;
+        $dirX = 0;
+        $dirY = 1;
+
+        while (true) {
+            $edge->addPoint($x, $y);
+            $x += $dirX;
+            $y += $dirY;
+
+            if ($x === $startX && $y === $startY) {
+                break;
+            }
+
+            $left = $this->isSet($x + ($dirX + $dirY - 1 ) / 2, $y + ($dirY - $dirX - 1) / 2);
+            $right = $this->isSet($x + ($dirX - $dirY - 1) / 2, $y + ($dirY + $dirX - 1) / 2);
+
+            if ($right && ! $left) {
+                $tmp = $dirX;
+                $dirX = -$dirY;
+                $dirY = $tmp;
+            } elseif ($right) {
+                $tmp = $dirX;
+                $dirX = -$dirY;
+                $dirY = $tmp;
+            } elseif (! $left) {
+                $tmp = $dirX;
+                $dirX = $dirY;
+                $dirY = -$tmp;
+            }
+        }
+
+        return $edge;
+    }
+
+    private function xorEdge(Edge $path) : void
+    {
+        $points = $path->getPoints();
+        $y1 = $points[0][1];
+        $length = count($points);
+        $maxX = $path->getMaxX();
+
+        for ($i = 1; $i < $length; ++$i) {
+            $y = $points[$i][1];
+
+            if ($y === $y1) {
+                continue;
+            }
+
+            $x = $points[$i][0];
+            $minY = min($y1, $y);
+
+            for ($j = $x; $j < $maxX; ++$j) {
+                $this->flip($j, $minY);
+            }
+
+            $y1 = $y;
+        }
+    }
+
+    private function isSet(int $x, int $y) : bool
+    {
+        return (
+            $x >= 0
+            && $x < $this->width
+            && $y >= 0
+            && $y < $this->height
+        ) && 1 === $this->bytes[$this->width * $y + $x];
+    }
+
+    /**
+     * @return int[]
+     */
+    private function pointOf(int $i) : array
+    {
+        $y = intdiv($i, $this->width);
+        return [$i - $y * $this->width, $y];
+    }
+
+    private function flip(int $x, int $y) : void
+    {
+        $this->bytes[$this->width * $y + $x] = (
+            $this->isSet($x, $y) ? 0 : 1
+        );
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Module/ModuleInterface.php

@@ -0,0 +1,18 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Module;
+
+use BaconQrCode\Encoder\ByteMatrix;
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Interface describing how modules should be rendered.
+ *
+ * A module always receives a byte matrix (with values either being 1 or 0). It returns a path, where the origin
+ * coordinate (0, 0) equals the top left corner of the first matrix value.
+ */
+interface ModuleInterface
+{
+    public function createPath(ByteMatrix $matrix) : Path;
+}

vendor/bacon/bacon-qr-code/src/Renderer/Module/RoundnessModule.php

@@ -0,0 +1,124 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Module;
+
+use BaconQrCode\Encoder\ByteMatrix;
+use BaconQrCode\Exception\InvalidArgumentException;
+use BaconQrCode\Renderer\Module\EdgeIterator\EdgeIterator;
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Rounds the corners of module groups.
+ */
+final class RoundnessModule implements ModuleInterface
+{
+    public const STRONG = 1;
+    public const MEDIUM = .5;
+    public const SOFT = .25;
+
+    public function __construct(private float $intensity)
+    {
+        if ($intensity <= 0 || $intensity > 1) {
+            throw new InvalidArgumentException('Intensity must between 0 (exclusive) and 1 (inclusive)');
+        }
+
+        $this->intensity = $intensity / 2;
+    }
+
+    public function createPath(ByteMatrix $matrix) : Path
+    {
+        $path = new Path();
+
+        foreach (new EdgeIterator($matrix) as $edge) {
+            $points = $edge->getSimplifiedPoints();
+            $length = count($points);
+
+            $currentPoint = $points[0];
+            $nextPoint = $points[1];
+            $horizontal = ($currentPoint[1] === $nextPoint[1]);
+
+            if ($horizontal) {
+                $right = $nextPoint[0] > $currentPoint[0];
+                $path = $path->move(
+                    $currentPoint[0] + ($right ? $this->intensity : -$this->intensity),
+                    $currentPoint[1]
+                );
+            } else {
+                $up = $nextPoint[0] < $currentPoint[0];
+                $path = $path->move(
+                    $currentPoint[0],
+                    $currentPoint[1] + ($up ? -$this->intensity : $this->intensity)
+                );
+            }
+
+            for ($i = 1; $i <= $length; ++$i) {
+                if ($i === $length) {
+                    $previousPoint = $points[$length - 1];
+                    $currentPoint = $points[0];
+                    $nextPoint = $points[1];
+                } else {
+                    $previousPoint = $points[(0 === $i ? $length : $i) - 1];
+                    $currentPoint = $points[$i];
+                    $nextPoint = $points[($length - 1 === $i ? -1 : $i) + 1];
+                }
+
+                $horizontal = ($previousPoint[1] === $currentPoint[1]);
+
+                if ($horizontal) {
+                    $right = $previousPoint[0] < $currentPoint[0];
+                    $up = $nextPoint[1] < $currentPoint[1];
+                    $sweep = ($up xor $right);
+
+                    if ($this->intensity < 0.5
+                        || ($right && $previousPoint[0] !== $currentPoint[0] - 1)
+                        || (! $right && $previousPoint[0] - 1 !== $currentPoint[0])
+                    ) {
+                        $path = $path->line(
+                            $currentPoint[0] + ($right ? -$this->intensity : $this->intensity),
+                            $currentPoint[1]
+                        );
+                    }
+
+                    $path = $path->ellipticArc(
+                        $this->intensity,
+                        $this->intensity,
+                        0,
+                        false,
+                        $sweep,
+                        $currentPoint[0],
+                        $currentPoint[1] + ($up ? -$this->intensity : $this->intensity)
+                    );
+                } else {
+                    $up = $previousPoint[1] > $currentPoint[1];
+                    $right = $nextPoint[0] > $currentPoint[0];
+                    $sweep = ! ($up xor $right);
+
+                    if ($this->intensity < 0.5
+                        || ($up && $previousPoint[1] !== $currentPoint[1] + 1)
+                        || (! $up && $previousPoint[0] + 1 !== $currentPoint[0])
+                    ) {
+                        $path = $path->line(
+                            $currentPoint[0],
+                            $currentPoint[1] + ($up ? $this->intensity : -$this->intensity)
+                        );
+                    }
+
+                    $path = $path->ellipticArc(
+                        $this->intensity,
+                        $this->intensity,
+                        0,
+                        false,
+                        $sweep,
+                        $currentPoint[0] + ($right ? $this->intensity : -$this->intensity),
+                        $currentPoint[1]
+                    );
+                }
+            }
+
+            $path = $path->close();
+        }
+
+        return $path;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Module/SquareModule.php

@@ -0,0 +1,44 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Module;
+
+use BaconQrCode\Encoder\ByteMatrix;
+use BaconQrCode\Renderer\Module\EdgeIterator\EdgeIterator;
+use BaconQrCode\Renderer\Path\Path;
+
+/**
+ * Groups modules together to a single path.
+ */
+final class SquareModule implements ModuleInterface
+{
+    private static ?SquareModule $instance = null;
+
+    private function __construct()
+    {
+    }
+
+    public static function instance() : self
+    {
+        return self::$instance ?: self::$instance = new self();
+    }
+
+    public function createPath(ByteMatrix $matrix) : Path
+    {
+        $path = new Path();
+
+        foreach (new EdgeIterator($matrix) as $edge) {
+            $points = $edge->getSimplifiedPoints();
+            $length = count($points);
+            $path = $path->move($points[0][0], $points[0][1]);
+
+            for ($i = 1; $i < $length; ++$i) {
+                $path = $path->line($points[$i][0], $points[$i][1]);
+            }
+
+            $path = $path->close();
+        }
+
+        return $path;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Path/Close.php

@@ -0,0 +1,34 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Path;
+
+final class Close implements OperationInterface
+{
+    private static ?Close $instance = null;
+
+    private function __construct()
+    {
+    }
+
+    public static function instance() : self
+    {
+        return self::$instance ?: self::$instance = new self();
+    }
+
+    /**
+     * @return self
+     */
+    public function translate(float $x, float $y) : OperationInterface
+    {
+        return $this;
+    }
+
+    /**
+     * @return self
+     */
+    public function rotate(int $degrees) : OperationInterface
+    {
+        return $this;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Path/Curve.php

@@ -0,0 +1,86 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Path;
+
+final class Curve implements OperationInterface
+{
+    public function __construct(
+        private readonly float $x1,
+        private readonly float $y1,
+        private readonly float $x2,
+        private readonly float $y2,
+        private readonly float $x3,
+        private readonly float $y3
+    ) {
+    }
+
+    public function getX1() : float
+    {
+        return $this->x1;
+    }
+
+    public function getY1() : float
+    {
+        return $this->y1;
+    }
+
+    public function getX2() : float
+    {
+        return $this->x2;
+    }
+
+    public function getY2() : float
+    {
+        return $this->y2;
+    }
+
+    public function getX3() : float
+    {
+        return $this->x3;
+    }
+
+    public function getY3() : float
+    {
+        return $this->y3;
+    }
+
+    /**
+     * @return self
+     */
+    public function translate(float $x, float $y) : OperationInterface
+    {
+        return new self(
+            $this->x1 + $x,
+            $this->y1 + $y,
+            $this->x2 + $x,
+            $this->y2 + $y,
+            $this->x3 + $x,
+            $this->y3 + $y
+        );
+    }
+
+    /**
+     * @return self
+     */
+    public function rotate(int $degrees) : OperationInterface
+    {
+        $radians = deg2rad($degrees);
+        $sin = sin($radians);
+        $cos = cos($radians);
+        $x1r = $this->x1 * $cos - $this->y1 * $sin;
+        $y1r = $this->x1 * $sin + $this->y1 * $cos;
+        $x2r = $this->x2 * $cos - $this->y2 * $sin;
+        $y2r = $this->x2 * $sin + $this->y2 * $cos;
+        $x3r = $this->x3 * $cos - $this->y3 * $sin;
+        $y3r = $this->x3 * $sin + $this->y3 * $cos;
+        return new self(
+            $x1r,
+            $y1r,
+            $x2r,
+            $y2r,
+            $x3r,
+            $y3r
+        );
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Path/EllipticArc.php

@@ -0,0 +1,264 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Path;
+
+final class EllipticArc implements OperationInterface
+{
+    private const ZERO_TOLERANCE = 1e-05;
+
+    private float $xRadius;
+    private float $yRadius;
+    private float $xAxisAngle;
+
+    public function __construct(
+        float                  $xRadius,
+        float                  $yRadius,
+        float                  $xAxisAngle,
+        private readonly bool  $largeArc,
+        private readonly bool  $sweep,
+        private readonly float $x,
+        private readonly float $y
+    ) {
+        $this->xRadius = abs($xRadius);
+        $this->yRadius = abs($yRadius);
+        $this->xAxisAngle = $xAxisAngle % 360;
+    }
+
+    public function getXRadius() : float
+    {
+        return $this->xRadius;
+    }
+
+    public function getYRadius() : float
+    {
+        return $this->yRadius;
+    }
+
+    public function getXAxisAngle() : float
+    {
+        return $this->xAxisAngle;
+    }
+
+    public function isLargeArc() : bool
+    {
+        return $this->largeArc;
+    }
+
+    public function isSweep() : bool
+    {
+        return $this->sweep;
+    }
+
+    public function getX() : float
+    {
+        return $this->x;
+    }
+
+    public function getY() : float
+    {
+        return $this->y;
+    }
+
+    /**
+     * @return self
+     */
+    public function translate(float $x, float $y) : OperationInterface
+    {
+        return new self(
+            $this->xRadius,
+            $this->yRadius,
+            $this->xAxisAngle,
+            $this->largeArc,
+            $this->sweep,
+            $this->x + $x,
+            $this->y + $y
+        );
+    }
+
+    /**
+     * @return self
+     */
+    public function rotate(int $degrees) : OperationInterface
+    {
+        $radians = deg2rad($degrees);
+        $sin = sin($radians);
+        $cos = cos($radians);
+        $xr = $this->x * $cos - $this->y * $sin;
+        $yr = $this->x * $sin + $this->y * $cos;
+        return new self(
+            $this->xRadius,
+            $this->yRadius,
+            $this->xAxisAngle,
+            $this->largeArc,
+            $this->sweep,
+            $xr,
+            $yr
+        );
+    }
+
+    /**
+     * Converts the elliptic arc to multiple curves.
+     *
+     * Since not all image back ends support elliptic arcs, this method allows to convert the arc into multiple curves
+     * resembling the same result.
+     *
+     * @see https://mortoray.com/2017/02/16/rendering-an-svg-elliptical-arc-as-bezier-curves/
+     * @return array<Curve|Line>
+     */
+    public function toCurves(float $fromX, float $fromY) : array
+    {
+        if (sqrt(($fromX - $this->x) ** 2 + ($fromY - $this->y) ** 2) < self::ZERO_TOLERANCE) {
+            return [];
+        }
+
+        if ($this->xRadius < self::ZERO_TOLERANCE || $this->yRadius < self::ZERO_TOLERANCE) {
+            return [new Line($this->x, $this->y)];
+        }
+
+        return $this->createCurves($fromX, $fromY);
+    }
+
+    /**
+     * @return Curve[]
+     */
+    private function createCurves(float $fromX, float $fromY) : array
+    {
+        $xAngle = deg2rad($this->xAxisAngle);
+        list($centerX, $centerY, $radiusX, $radiusY, $startAngle, $deltaAngle) =
+            $this->calculateCenterPointParameters($fromX, $fromY, $xAngle);
+
+        $s = $startAngle;
+        $e = $s + $deltaAngle;
+        $sign = ($e < $s) ? -1 : 1;
+        $remain = abs($e - $s);
+        $p1 = self::point($centerX, $centerY, $radiusX, $radiusY, $xAngle, $s);
+        $curves = [];
+
+        while ($remain > self::ZERO_TOLERANCE) {
+            $step = min($remain, pi() / 2);
+            $signStep = $step * $sign;
+            $p2 = self::point($centerX, $centerY, $radiusX, $radiusY, $xAngle, $s + $signStep);
+
+            $alphaT = tan($signStep / 2);
+            $alpha = sin($signStep) * (sqrt(4 + 3 * $alphaT ** 2) - 1) / 3;
+            $d1 = self::derivative($radiusX, $radiusY, $xAngle, $s);
+            $d2 = self::derivative($radiusX, $radiusY, $xAngle, $s + $signStep);
+
+            $curves[] = new Curve(
+                $p1[0] + $alpha * $d1[0],
+                $p1[1] + $alpha * $d1[1],
+                $p2[0] - $alpha * $d2[0],
+                $p2[1] - $alpha * $d2[1],
+                $p2[0],
+                $p2[1]
+            );
+
+            $s += $signStep;
+            $remain -= $step;
+            $p1 = $p2;
+        }
+
+        return $curves;
+    }
+
+    /**
+     * @return float[]
+     */
+    private function calculateCenterPointParameters(float $fromX, float $fromY, float $xAngle): array
+    {
+        $rX = $this->xRadius;
+        $rY = $this->yRadius;
+
+        // F.6.5.1
+        $dx2 = ($fromX - $this->x) / 2;
+        $dy2 = ($fromY - $this->y) / 2;
+        $x1p = cos($xAngle) * $dx2 + sin($xAngle) * $dy2;
+        $y1p = -sin($xAngle) * $dx2 + cos($xAngle) * $dy2;
+
+        // F.6.5.2
+        $rxs = $rX ** 2;
+        $rys = $rY ** 2;
+        $x1ps = $x1p ** 2;
+        $y1ps = $y1p ** 2;
+        $cr = $x1ps / $rxs + $y1ps / $rys;
+
+        if ($cr > 1) {
+            $s = sqrt($cr);
+            $rX *= $s;
+            $rY *= $s;
+            $rxs = $rX ** 2;
+            $rys = $rY ** 2;
+        }
+
+        $dq = ($rxs * $y1ps + $rys * $x1ps);
+        $pq = ($rxs * $rys - $dq) / $dq;
+        $q = sqrt(max(0, $pq));
+
+        if ($this->largeArc === $this->sweep) {
+            $q = -$q;
+        }
+
+        $cxp = $q * $rX * $y1p / $rY;
+        $cyp = -$q * $rY * $x1p / $rX;
+
+        // F.6.5.3
+        $cx = cos($xAngle) * $cxp - sin($xAngle) * $cyp + ($fromX + $this->x) / 2;
+        $cy = sin($xAngle) * $cxp + cos($xAngle) * $cyp + ($fromY + $this->y) / 2;
+
+        // F.6.5.5
+        $theta = self::angle(1, 0, ($x1p - $cxp) / $rX, ($y1p - $cyp) / $rY);
+
+        // F.6.5.6
+        $delta = self::angle(($x1p - $cxp) / $rX, ($y1p - $cyp) / $rY, (-$x1p - $cxp) / $rX, (-$y1p - $cyp) / $rY);
+        $delta = fmod($delta, pi() * 2);
+
+        if (! $this->sweep) {
+            $delta -= 2 * pi();
+        }
+
+        return [$cx, $cy, $rX, $rY, $theta, $delta];
+    }
+
+    private static function angle(float $ux, float $uy, float $vx, float $vy) : float
+    {
+        // F.6.5.4
+        $dot = $ux * $vx + $uy * $vy;
+        $length = sqrt($ux ** 2 + $uy ** 2) * sqrt($vx ** 2 + $vy ** 2);
+        $angle = acos(min(1, max(-1, $dot / $length)));
+
+        if (($ux * $vy - $uy * $vx) < 0) {
+            return -$angle;
+        }
+
+        return $angle;
+    }
+
+    /**
+     * @return float[]
+     */
+    private static function point(
+        float $centerX,
+        float $centerY,
+        float $radiusX,
+        float $radiusY,
+        float $xAngle,
+        float $angle
+    ) : array {
+        return [
+            $centerX + $radiusX * cos($xAngle) * cos($angle) - $radiusY * sin($xAngle) * sin($angle),
+            $centerY + $radiusX * sin($xAngle) * cos($angle) + $radiusY * cos($xAngle) * sin($angle),
+        ];
+    }
+
+    /**
+     * @return float[]
+     */
+    private static function derivative(float $radiusX, float $radiusY, float $xAngle, float $angle) : array
+    {
+        return [
+            -$radiusX * cos($xAngle) * sin($angle) - $radiusY * sin($xAngle) * cos($angle),
+            -$radiusX * sin($xAngle) * sin($angle) + $radiusY * cos($xAngle) * cos($angle),
+        ];
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Path/Line.php

@@ -0,0 +1,42 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Path;
+
+final class Line implements OperationInterface
+{
+    public function __construct(private readonly float $x, private readonly float $y)
+    {
+    }
+
+    public function getX() : float
+    {
+        return $this->x;
+    }
+
+    public function getY() : float
+    {
+        return $this->y;
+    }
+
+    /**
+     * @return self
+     */
+    public function translate(float $x, float $y) : OperationInterface
+    {
+        return new self($this->x + $x, $this->y + $y);
+    }
+
+    /**
+     * @return self
+     */
+    public function rotate(int $degrees) : OperationInterface
+    {
+        $radians = deg2rad($degrees);
+        $sin = sin($radians);
+        $cos = cos($radians);
+        $xr = $this->x * $cos - $this->y * $sin;
+        $yr = $this->x * $sin + $this->y * $cos;
+        return new self($xr, $yr);
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Path/Move.php

@@ -0,0 +1,42 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Path;
+
+final class Move implements OperationInterface
+{
+    public function __construct(private readonly float $x, private readonly float $y)
+    {
+    }
+
+    public function getX() : float
+    {
+        return $this->x;
+    }
+
+    public function getY() : float
+    {
+        return $this->y;
+    }
+
+    /**
+     * @return self
+     */
+    public function translate(float $x, float $y) : OperationInterface
+    {
+        return new self($this->x + $x, $this->y + $y);
+    }
+
+    /**
+     * @return self
+     */
+    public function rotate(int $degrees) : OperationInterface
+    {
+        $radians = deg2rad($degrees);
+        $sin = sin($radians);
+        $cos = cos($radians);
+        $xr = $this->x * $cos - $this->y * $sin;
+        $yr = $this->x * $sin + $this->y * $cos;
+        return new self($xr, $yr);
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/Path/OperationInterface.php

@@ -0,0 +1,17 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Path;
+
+interface OperationInterface
+{
+    /**
+     * Translates the operation's coordinates.
+     */
+    public function translate(float $x, float $y) : self;
+
+    /**
+     * Rotates the operation's coordinates.
+     */
+    public function rotate(int $degrees) : self;
+}

vendor/bacon/bacon-qr-code/src/Renderer/Path/Path.php

@@ -0,0 +1,117 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\Path;
+
+use IteratorAggregate;
+use Traversable;
+
+/**
+ * Internal Representation of a vector path.
+ */
+final class Path implements IteratorAggregate
+{
+    /**
+     * @var OperationInterface[]
+     */
+    private array $operations = [];
+
+    /**
+     * Moves the drawing operation to a certain position.
+     */
+    public function move(float $x, float $y) : self
+    {
+        $path = clone $this;
+        $path->operations[] = new Move($x, $y);
+        return $path;
+    }
+
+    /**
+     * Draws a line from the current position to another position.
+     */
+    public function line(float $x, float $y) : self
+    {
+        $path = clone $this;
+        $path->operations[] = new Line($x, $y);
+        return $path;
+    }
+
+    /**
+     * Draws an elliptic arc from the current position to another position.
+     */
+    public function ellipticArc(
+        float $xRadius,
+        float $yRadius,
+        float $xAxisRotation,
+        bool $largeArc,
+        bool $sweep,
+        float $x,
+        float $y
+    ) : self {
+        $path = clone $this;
+        $path->operations[] = new EllipticArc($xRadius, $yRadius, $xAxisRotation, $largeArc, $sweep, $x, $y);
+        return $path;
+    }
+
+    /**
+     * Draws a curve from the current position to another position.
+     */
+    public function curve(float $x1, float $y1, float $x2, float $y2, float $x3, float $y3) : self
+    {
+        $path = clone $this;
+        $path->operations[] = new Curve($x1, $y1, $x2, $y2, $x3, $y3);
+        return $path;
+    }
+
+    /**
+     * Closes a sub-path.
+     */
+    public function close() : self
+    {
+        $path = clone $this;
+        $path->operations[] = Close::instance();
+        return $path;
+    }
+
+    /**
+     * Appends another path to this one.
+     */
+    public function append(self $other) : self
+    {
+        $path = clone $this;
+        $path->operations = array_merge($this->operations, $other->operations);
+        return $path;
+    }
+
+    public function translate(float $x, float $y) : self
+    {
+        $path = new self();
+
+        foreach ($this->operations as $operation) {
+            $path->operations[] = $operation->translate($x, $y);
+        }
+
+        return $path;
+    }
+
+    public function rotate(int $degrees) : self
+    {
+        $path = new self();
+
+        foreach ($this->operations as $operation) {
+            $path->operations[] = $operation->rotate($degrees);
+        }
+
+        return $path;
+    }
+
+    /**
+     * @return Traversable<int, OperationInterface>
+     */
+    public function getIterator() : Traversable
+    {
+        foreach ($this->operations as $operation) {
+            yield $operation;
+        }
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/PlainTextRenderer.php

@@ -0,0 +1,80 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer;
+
+use BaconQrCode\Encoder\QrCode;
+use BaconQrCode\Exception\InvalidArgumentException;
+
+final class PlainTextRenderer implements RendererInterface
+{
+    /**
+     * UTF-8 full block (U+2588)
+     */
+    private const FULL_BLOCK = "\xe2\x96\x88";
+
+    /**
+     * UTF-8 upper half block (U+2580)
+     */
+    private const UPPER_HALF_BLOCK = "\xe2\x96\x80";
+
+    /**
+     * UTF-8 lower half block (U+2584)
+     */
+    private const LOWER_HALF_BLOCK = "\xe2\x96\x84";
+
+    /**
+     * UTF-8 no-break space (U+00A0)
+     */
+    private const EMPTY_BLOCK = "\xc2\xa0";
+
+    public function __construct(private readonly int $margin = 2)
+    {
+    }
+
+    /**
+     * @throws InvalidArgumentException if matrix width doesn't match height
+     */
+    public function render(QrCode $qrCode) : string
+    {
+        $matrix = $qrCode->getMatrix();
+        $matrixSize = $matrix->getWidth();
+
+        if ($matrixSize !== $matrix->getHeight()) {
+            throw new InvalidArgumentException('Matrix must have the same width and height');
+        }
+
+        $rows = $matrix->getArray()->toArray();
+
+        if (0 !== $matrixSize % 2) {
+            $rows[] = array_fill(0, $matrixSize, 0);
+        }
+
+        $horizontalMargin = str_repeat(self::EMPTY_BLOCK, $this->margin);
+        $result = str_repeat("\n", (int) ceil($this->margin / 2));
+
+        for ($i = 0; $i < $matrixSize; $i += 2) {
+            $result .= $horizontalMargin;
+
+            $upperRow = $rows[$i];
+            $lowerRow = $rows[$i + 1];
+
+            for ($j = 0; $j < $matrixSize; ++$j) {
+                $upperBit = $upperRow[$j];
+                $lowerBit = $lowerRow[$j];
+
+                if ($upperBit) {
+                    $result .= $lowerBit ? self::FULL_BLOCK : self::UPPER_HALF_BLOCK;
+                } else {
+                    $result .= $lowerBit ? self::LOWER_HALF_BLOCK : self::EMPTY_BLOCK;
+                }
+            }
+
+            $result .= $horizontalMargin . "\n";
+        }
+
+        $result .= str_repeat("\n", (int) ceil($this->margin / 2));
+
+        return $result;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/RendererInterface.php

@@ -0,0 +1,11 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer;
+
+use BaconQrCode\Encoder\QrCode;
+
+interface RendererInterface
+{
+    public function render(QrCode $qrCode) : string;
+}

vendor/bacon/bacon-qr-code/src/Renderer/RendererStyle/EyeFill.php

@@ -0,0 +1,61 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\RendererStyle;
+
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Renderer\Color\ColorInterface;
+
+final class EyeFill
+{
+    private static ?EyeFill $inherit = null;
+
+    public function __construct(
+        private readonly ?ColorInterface $externalColor,
+        private readonly ?ColorInterface $internalColor
+    ) {
+    }
+
+    public static function uniform(ColorInterface $color) : self
+    {
+        return new self($color, $color);
+    }
+
+    public static function inherit() : self
+    {
+        return self::$inherit ?: self::$inherit = new self(null, null);
+    }
+
+    public function inheritsBothColors() : bool
+    {
+        return null === $this->externalColor && null === $this->internalColor;
+    }
+
+    public function inheritsExternalColor() : bool
+    {
+        return null === $this->externalColor;
+    }
+
+    public function inheritsInternalColor() : bool
+    {
+        return null === $this->internalColor;
+    }
+
+    public function getExternalColor() : ColorInterface
+    {
+        if (null === $this->externalColor) {
+            throw new RuntimeException('External eye color inherits foreground color');
+        }
+
+        return $this->externalColor;
+    }
+
+    public function getInternalColor() : ColorInterface
+    {
+        if (null === $this->internalColor) {
+            throw new RuntimeException('Internal eye color inherits foreground color');
+        }
+
+        return $this->internalColor;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/RendererStyle/Fill.php

@@ -0,0 +1,129 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\RendererStyle;
+
+use BaconQrCode\Exception\RuntimeException;
+use BaconQrCode\Renderer\Color\ColorInterface;
+use BaconQrCode\Renderer\Color\Gray;
+
+final class Fill
+{
+    private static ?Fill $default = null;
+
+    private function __construct(
+        private readonly ColorInterface  $backgroundColor,
+        private readonly ?ColorInterface $foregroundColor,
+        private readonly ?Gradient       $foregroundGradient,
+        private readonly EyeFill         $topLeftEyeFill,
+        private readonly EyeFill         $topRightEyeFill,
+        private readonly EyeFill $bottomLeftEyeFill
+    ) {
+    }
+
+    public static function default() : self
+    {
+        return self::$default ?: self::$default = self::uniformColor(new Gray(100), new Gray(0));
+    }
+
+    public static function withForegroundColor(
+        ColorInterface $backgroundColor,
+        ColorInterface $foregroundColor,
+        EyeFill $topLeftEyeFill,
+        EyeFill $topRightEyeFill,
+        EyeFill $bottomLeftEyeFill
+    ) : self {
+        return new self(
+            $backgroundColor,
+            $foregroundColor,
+            null,
+            $topLeftEyeFill,
+            $topRightEyeFill,
+            $bottomLeftEyeFill
+        );
+    }
+
+    public static function withForegroundGradient(
+        ColorInterface $backgroundColor,
+        Gradient $foregroundGradient,
+        EyeFill $topLeftEyeFill,
+        EyeFill $topRightEyeFill,
+        EyeFill $bottomLeftEyeFill
+    ) : self {
+        return new self(
+            $backgroundColor,
+            null,
+            $foregroundGradient,
+            $topLeftEyeFill,
+            $topRightEyeFill,
+            $bottomLeftEyeFill
+        );
+    }
+
+    public static function uniformColor(ColorInterface $backgroundColor, ColorInterface $foregroundColor) : self
+    {
+        return new self(
+            $backgroundColor,
+            $foregroundColor,
+            null,
+            EyeFill::inherit(),
+            EyeFill::inherit(),
+            EyeFill::inherit()
+        );
+    }
+
+    public static function uniformGradient(ColorInterface $backgroundColor, Gradient $foregroundGradient) : self
+    {
+        return new self(
+            $backgroundColor,
+            null,
+            $foregroundGradient,
+            EyeFill::inherit(),
+            EyeFill::inherit(),
+            EyeFill::inherit()
+        );
+    }
+
+    public function hasGradientFill() : bool
+    {
+        return null !== $this->foregroundGradient;
+    }
+
+    public function getBackgroundColor() : ColorInterface
+    {
+        return $this->backgroundColor;
+    }
+
+    public function getForegroundColor() : ColorInterface
+    {
+        if (null === $this->foregroundColor) {
+            throw new RuntimeException('Fill uses a gradient, thus no foreground color is available');
+        }
+
+        return $this->foregroundColor;
+    }
+
+    public function getForegroundGradient() : Gradient
+    {
+        if (null === $this->foregroundGradient) {
+            throw new RuntimeException('Fill uses a single color, thus no foreground gradient is available');
+        }
+
+        return $this->foregroundGradient;
+    }
+
+    public function getTopLeftEyeFill() : EyeFill
+    {
+        return $this->topLeftEyeFill;
+    }
+
+    public function getTopRightEyeFill() : EyeFill
+    {
+        return $this->topRightEyeFill;
+    }
+
+    public function getBottomLeftEyeFill() : EyeFill
+    {
+        return $this->bottomLeftEyeFill;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/RendererStyle/Gradient.php

@@ -0,0 +1,31 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\RendererStyle;
+
+use BaconQrCode\Renderer\Color\ColorInterface;
+
+final class Gradient
+{
+    public function __construct(
+        private readonly ColorInterface $startColor,
+        private readonly ColorInterface $endColor,
+        private readonly GradientType   $type
+    ) {
+    }
+
+    public function getStartColor() : ColorInterface
+    {
+        return $this->startColor;
+    }
+
+    public function getEndColor() : ColorInterface
+    {
+        return $this->endColor;
+    }
+
+    public function getType() : GradientType
+    {
+        return $this->type;
+    }
+}

vendor/bacon/bacon-qr-code/src/Renderer/RendererStyle/GradientType.php

@@ -0,0 +1,22 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\RendererStyle;
+
+use DASPRiD\Enum\AbstractEnum;
+
+/**
+ * @method static self VERTICAL()
+ * @method static self HORIZONTAL()
+ * @method static self DIAGONAL()
+ * @method static self INVERSE_DIAGONAL()
+ * @method static self RADIAL()
+ */
+final class GradientType extends AbstractEnum
+{
+    protected const VERTICAL = null;
+    protected const HORIZONTAL = null;
+    protected const DIAGONAL = null;
+    protected const INVERSE_DIAGONAL = null;
+    protected const RADIAL = null;
+}

vendor/bacon/bacon-qr-code/src/Renderer/RendererStyle/RendererStyle.php

@@ -0,0 +1,69 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode\Renderer\RendererStyle;
+
+use BaconQrCode\Renderer\Eye\EyeInterface;
+use BaconQrCode\Renderer\Eye\ModuleEye;
+use BaconQrCode\Renderer\Module\ModuleInterface;
+use BaconQrCode\Renderer\Module\SquareModule;
+
+final class RendererStyle
+{
+    private ModuleInterface $module;
+
+    private EyeInterface|null $eye;
+
+    private Fill $fill;
+
+    public function __construct(
+        private int $size,
+        private int $margin = 4,
+        ?ModuleInterface $module = null,
+        ?EyeInterface $eye = null,
+        ?Fill $fill = null
+    ) {
+        $this->module = $module ?: SquareModule::instance();
+        $this->eye = $eye ?: new ModuleEye($this->module);
+        $this->fill = $fill ?: Fill::default();
+    }
+
+    public function withSize(int $size) : self
+    {
+        $style = clone $this;
+        $style->size = $size;
+        return $style;
+    }
+
+    public function withMargin(int $margin) : self
+    {
+        $style = clone $this;
+        $style->margin = $margin;
+        return $style;
+    }
+
+    public function getSize() : int
+    {
+        return $this->size;
+    }
+
+    public function getMargin() : int
+    {
+        return $this->margin;
+    }
+
+    public function getModule() : ModuleInterface
+    {
+        return $this->module;
+    }
+
+    public function getEye() : EyeInterface
+    {
+        return $this->eye;
+    }
+
+    public function getFill() : Fill
+    {
+        return $this->fill;
+    }
+}

vendor/bacon/bacon-qr-code/src/Writer.php

@@ -0,0 +1,63 @@
+<?php
+declare(strict_types = 1);
+
+namespace BaconQrCode;
+
+use BaconQrCode\Common\ErrorCorrectionLevel;
+use BaconQrCode\Common\Version;
+use BaconQrCode\Encoder\Encoder;
+use BaconQrCode\Exception\InvalidArgumentException;
+use BaconQrCode\Renderer\RendererInterface;
+
+/**
+ * QR code writer.
+ */
+final class Writer
+{
+    /**
+     * Creates a new writer with a specific renderer.
+     */
+    public function __construct(private readonly RendererInterface $renderer)
+    {
+    }
+
+    /**
+     * Writes QR code and returns it as string.
+     *
+     * Content is a string which *should* be encoded in UTF-8, in case there are
+     * non ASCII-characters present.
+     *
+     * @throws InvalidArgumentException if the content is empty
+     */
+    public function writeString(
+        string $content,
+        string $encoding = Encoder::DEFAULT_BYTE_MODE_ENCODING,
+        ?ErrorCorrectionLevel $ecLevel = null,
+        ?Version $forcedVersion = null
+    ) : string {
+        if (strlen($content) === 0) {
+            throw new InvalidArgumentException('Found empty contents');
+        }
+
+        if (null === $ecLevel) {
+            $ecLevel = ErrorCorrectionLevel::L();
+        }
+
+        return $this->renderer->render(Encoder::encode($content, $ecLevel, $encoding, $forcedVersion));
+    }
+
+    /**
+     * Writes QR code to a file.
+     *
+     * @see Writer::writeString()
+     */
+    public function writeFile(
+        string $content,
+        string $filename,
+        string $encoding = Encoder::DEFAULT_BYTE_MODE_ENCODING,
+        ?ErrorCorrectionLevel $ecLevel = null,
+        ?Version $forcedVersion = null
+    ) : void {
+        file_put_contents($filename, $this->writeString($content, $encoding, $ecLevel, $forcedVersion));
+    }
+}

vendor/bin/yaml-lint

@@ -0,0 +1,120 @@
+#!/usr/bin/env php
+<?php
+
+/**
+ * Proxy PHP file generated by Composer
+ *
+ * This file includes the referenced bin path (../symfony/yaml/Resources/bin/yaml-lint)
+ * using a stream wrapper to prevent the shebang from being output on PHP<8
+ *
+ * @generated
+ */
+
+namespace Composer;
+
+$GLOBALS['_composer_bin_dir'] = __DIR__;
+$GLOBALS['_composer_autoload_path'] = __DIR__ . '/..'.'/autoload.php';
+
+if (PHP_VERSION_ID < 80000) {
+    if (!class_exists('Composer\BinProxyWrapper')) {
+        /**
+         * @internal
+         */
+        final class BinProxyWrapper
+        {
+            private $handle;
+            private $position;
+            private $realpath;
+
+            public function stream_open($path, $mode, $options, &$opened_path)
+            {
+                // get rid of phpvfscomposer:// prefix for __FILE__ & __DIR__ resolution
+                $opened_path = substr($path, 17);
+                $this->realpath = realpath($opened_path) ?: $opened_path;
+                $opened_path = $this->realpath;
+                $this->handle = fopen($this->realpath, $mode);
+                $this->position = 0;
+
+                return (bool) $this->handle;
+            }
+
+            public function stream_read($count)
+            {
+                $data = fread($this->handle, $count);
+
+                if ($this->position === 0) {
+                    $data = preg_replace('{^#!.*\r?\n}', '', $data);
+                }
+
+                $this->position += strlen($data);
+
+                return $data;
+            }
+
+            public function stream_cast($castAs)
+            {
+                return $this->handle;
+            }
+
+            public function stream_close()
+            {
+                fclose($this->handle);
+            }
+
+            public function stream_lock($operation)
+            {
+                return $operation ? flock($this->handle, $operation) : true;
+            }
+
+            public function stream_seek($offset, $whence)
+            {
+                if (0 === fseek($this->handle, $offset, $whence)) {
+                    $this->position = ftell($this->handle);
+                    return true;
+                }
+
+                return false;
+            }
+
+            public function stream_tell()
+            {
+                return $this->position;
+            }
+
+            public function stream_eof()
+            {
+                return feof($this->handle);
+            }
+
+            public function stream_stat()
+            {
+                return array();
+            }
+
+            public function stream_set_option($option, $arg1, $arg2)
+            {
+                return true;
+            }
+
+            public function url_stat($path, $flags)
+            {
+                $path = substr($path, 17);
+                if (file_exists($path)) {
+                    return stat($path);
+                }
+
+                return false;
+            }
+        }
+    }
+
+    if (
+        (function_exists('stream_get_wrappers') && in_array('phpvfscomposer', stream_get_wrappers(), true))
+        || (function_exists('stream_wrapper_register') && stream_wrapper_register('phpvfscomposer', 'Composer\BinProxyWrapper'))
+    ) {
+        include("phpvfscomposer://" . __DIR__ . '/..'.'/symfony/yaml/Resources/bin/yaml-lint');
+        exit(0);
+    }
+}
+
+include __DIR__ . '/..'.'/symfony/yaml/Resources/bin/yaml-lint';

vendor/chillerlan/php-authenticator/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Smiley <smiley@chillerlan.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/chillerlan/php-authenticator/README.md

@@ -0,0 +1,181 @@
+# chillerlan/php-authenticator
+
+A generator for counter based ([RFC 4226](https://tools.ietf.org/html/rfc4226)) and time based ([RFC 6238](https://tools.ietf.org/html/rfc6238)) one time passwords (OTP). (a.k.a. Yet Another Google Authenticator Implementation!)
+
+[![License][license-badge]][license]
+[![GitHub actions workflow][gh-action-badge]][gh-action]
+[![Coverage][coverage-badge]][coverage]
+[![Codacy][codacy-badge]][codacy]
+
+[license-badge]: https://img.shields.io/github/license/chillerlan/php-authenticator.svg
+[license]: https://github.com/chillerlan/php-authenticator/blob/v5.x/LICENSE
+[gh-action-badge]: https://img.shields.io/github/actions/workflow/status/chillerlan/php-authenticator/ci.yml?branch=v5.x&logo=github&logoColor=fff
+[gh-action]: https://github.com/chillerlan/php-authenticator/actions?query=branch%3Av5.x
+[coverage-badge]: https://img.shields.io/codecov/c/gh/chillerlan/php-authenticator/v5.x?logo=codecov&logoColor=fff
+[coverage]: https://app.codecov.io/github/chillerlan/php-authenticator/tree/v5.x
+[codacy-badge]: https://img.shields.io/codacy/grade/a2793225b448495c9659f27f7f52380a/v5.x?logo=codacy&logoColor=fff
+[codacy]: https://www.codacy.com/gh/chillerlan/php-authenticator/dashboard?branch=v5.x
+
+# Documentation
+## Requirements
+- PHP 8.2+
+  - [`ext-curl`](https://www.php.net/manual/book.curl) for Steam Guard server time synchronization
+  - [`ext-sodium`](https://www.php.net/manual/book.sodium) for constant time implementations of base64 encode/decode and hex2bin/bin2hex
+    ([`paragonie/constant_time_encoding`](https://github.com/paragonie/constant_time_encoding) is used as fallback)
+
+## Installation
+**requires [composer](https://getcomposer.org)**
+
+via terminal: `composer require chillerlan/php-authenticator`
+
+**composer.json**
+```json
+{
+	"require": {
+		"php": "^8.2",
+		"chillerlan/php-authenticator": "dev-v5.x"
+	}
+}
+```
+Note: replace `dev-main` with a [version constraint](https://getcomposer.org/doc/articles/versions.md#writing-version-constraints), e.g. `^5.0` - see [releases](https://github.com/chillerlan/php-authenticator/releases) for valid versions
+
+Profit!
+
+## Usage
+### Create a secret
+The secret is usually being created once during the activation process in a user control panel.
+So all you need to do there is to display it to the user in a convenient way -
+as a text string and QR code for example - and save it somewhere with the user data.
+```php
+use chillerlan\Authenticator\{Authenticator, AuthenticatorOptions};
+
+$options = new AuthenticatorOptions;
+$options->secret_length = 32;
+
+$authenticator = new Authenticator($options);
+// create a secret (stored somewhere in a *safe* place on the server. safe... hahaha jk)
+$secret = $authenticator->createSecret();
+// you can also specify the length of the secret key, which overrides the options setting
+$secret = $authenticator->createSecret(20);
+// set an existing secret
+$authenticator->setSecret($secret);
+```
+
+A secret created with `Authenticator::createSecret()` will also be stored internally,
+so that you don't need to provide the secret you just created on follow-up operations with the current instance.
+
+### Verify a one time code
+Now during the login process - after the user has successfully entered their credentials - you would
+ask them for a one time code to check it against the secret from your user database.
+
+```php
+// verify the code
+if($authenticator->verify($otp)){
+	// that's it - 2FA has never been easier! :D
+}
+```
+
+#### time based (TOTP)
+Verify adjacent codes
+```php
+// try the first adjacent
+$authenticator->verify($otp, time() - $options->period); // -> true
+// try the second adjacent, default is 1
+$authenticator->verify($otp, time() + 2 * $options->period); // -> false
+// allow 2 adjacent codes
+$options->adjacent = 2;
+$authenticator->verify($otp, time() + 2 * $options->period); // -> true
+```
+
+#### counter based (HOTP)
+```php
+// switch mode to HOTP
+$options->mode = AuthenticatorInterface::HOTP;
+// user sends the OTP for code #42, which is equivalent to
+$otp = $authenticator->code(42); // -> 123456
+// verify [123456, 42]
+$authenticator->verify($otp, $counterValueFromUserDatabase) // -> true
+```
+
+### URI creation
+In order to display a QR code for a mobile authenticator you'll need an `otpauth://` URI, which can be created using the following method.
+- `$label` should be something that identifies the account to which the secret belongs
+- `$issuer` is the name of your website or company for example, so that the user is able to identify multiple accounts.
+```php
+$uri = $authenticator->getUri($label, $issuer);
+
+// -> otpauth://totp/my%20label?secret=NKSOQG7UKKID4IXW&issuer=chillerlan.net&digits=6&period=30&algorithm=SHA1
+```
+
+#### Notes
+Keep in mind that several URI settings are not (yet) recognized by all authenticators. Check [the Google Authenticator wiki](https://github.com/google/google-authenticator/wiki/Key-Uri-Format#parameters) for more info.
+
+```php
+// code length, currently 6 or 8
+$options->digits = 8;
+// valid period between 15 and 60 seconds
+$options->period = 45;
+// set the HMAC hash algorithm
+$options->algorithm = AuthenticatorInterface::ALGO_SHA512;
+```
+
+## API
+### `Authenticator`
+| method                                                                                      | return          | description                                                      |
+|---------------------------------------------------------------------------------------------|-----------------|------------------------------------------------------------------|
+| `__construct(SettingsContainerInterface $options = null, string $secret = null)`            | -               |                                                                  |
+| `setOptions(SettingsContainerInterface $options)`                                           | `Authenticator` | called internally by `__construct()`                             |
+| `setSecret(string $secret)`                                                                 | `Authenticator` | called internally by `__construct()`                             |
+| `getSecret()`                                                                               | `string`        |                                                                  |
+| `createSecret(int $length = null)`                                                          | `string`        | `$length` overrides `AuthenticatorOptions` setting               |
+| `code(int $data = null)`                                                                    | `string`        | `$data` may be a UNIX timestamp (TOTP) or a counter value (HOTP) |
+| `verify(string $otp, int $data = null)`                                                     | `bool`          | for `$data` see `Authenticator::code()`                          |
+| `getUri(string $label, string $issuer, int $hotpCounter = null, bool $omitSettings = null)` | `string`        |                                                                  |
+
+### `AuthenticatorOptions`
+#### Properties
+| property            | type     | default | allowed                                | description                                                                     |
+|---------------------|----------|---------|----------------------------------------|---------------------------------------------------------------------------------|
+| `$digits`           | `int`    | 6       | 6 or 8                                 | auth code length                                                                |
+| `$period`           | `int`    | 30      | 15 - 60                                | validation period (seconds)                                                     |
+| `$secret_length`    | `int`    | 20      | >= 16                               | length of the secret phrase (bytes, unencoded binary)                           |
+| `$algorithm`        | `string` | `SHA1`  | `SHA1`, `SHA256` or `SHA512`           | HMAC hash algorithm, see `AuthenticatorInterface::HASH_ALGOS`                   |
+| `$mode`             | `string` | `totp`  | `totp`, `hotp`, `battlenet` or `steam` | authenticator mode: time- or counter based, see `AuthenticatorInterface::MODES` |
+| `$adjacent`         | `int`    | 1       | >= 0                                | number of allowed adjacent codes                                                |
+| `$time_offset`      | `int`    | 0       | *                                      | fixed time offset that will be added to the current time value                  |
+| `$useLocalTime`     | `bool`   | true    | *                                      | whether to use local time or request server time                                |
+| `$forceTimeRefresh` | `bool`   | false   | *                                      | whether to force refreshing server time on each call                            |
+
+### `AuthenticatorInterface`
+#### Methods
+| method                                            | return                   | description |
+|---------------------------------------------------|--------------------------|-------------|
+| `setOptions(SettingsContainerInterface $options)` | `AuthenticatorInterface` |             |
+| `setSecret(string $encodedSecret)`                | `AuthenticatorInterface` |             |
+| `getSecret()`                                     | `string`                 |             |
+| `createSecret(int $length = null)`                | `string`                 |             |
+| `getServertime()`                                 | `int`                    |             |
+| `getCounter(int $data = null)`                    | `int`                    | internal    |
+| `getHMAC(int $counter)`                           | `string`                 | internal    |
+| `getCode(string $hmac)`                           | `int`                    | internal    |
+| `getOTP(int $code)`                               | `string`                 | internal    |
+| `code(int $data = null)`                          | `string`                 |             |
+| `verify(string $otp, int $data = null)`           | `bool`                   |             |
+
+#### Constants
+| constant      | type     | description                       |
+|---------------|----------|-----------------------------------|
+| `TOTP`        | `string` |                                   |
+| `HOTP`        | `string` |                                   |
+| `STEAM_GUARD` | `string` |                                   |
+| `ALGO_SHA1`   | `string` |                                   |
+| `ALGO_SHA256` | `string` |                                   |
+| `ALGO_SHA512` | `string` |                                   |
+| `MODES`       | `array`  | map of mode -> classname          |
+| `HASH_ALGOS`  | `array`  | list of available hash algorithms |
+
+<p align="center">
+  <a href="https://twofactorauth.org">
+    <img alt="2FA ALL THE THINGS!" src="https://raw.githubusercontent.com/chillerlan/php-authenticator/v5.x/.github/images/2fa-all-the-things.jpg">
+  </a>
+</p>

vendor/chillerlan/php-authenticator/composer.json

@@ -0,0 +1,71 @@
+{
+	"name": "chillerlan/php-authenticator",
+	"description": "A generator for counter- and time based 2-factor authentication codes (Google Authenticator). PHP 8.2+",
+	"homepage": "https://github.com/chillerlan/php-authenticator",
+	"license": "MIT",
+	"type": "library",
+	"keywords": [
+		"2fa", "authenticator", "google2fa", "hotp", "mfa", "otp", "rfc4226", "rfc6238", "tfa", "totp", "two factor"
+	],
+	"authors": [
+		{
+			"name": "Smiley",
+			"email": "smiley@chillerlan.net",
+			"homepage": "https://github.com/codemasher"
+		},
+		{
+			"name": "Contributors",
+			"homepage":"https://github.com/chillerlan/php-authenticator/graphs/contributors"
+		}
+	],
+	"funding": [
+		{
+			"type": "Ko-Fi",
+			"url": "https://ko-fi.com/codemasher"
+		}
+	],
+	"support": {
+		"issues": "https://github.com/chillerlan/php-authenticator/issues",
+		"source": "https://github.com/chillerlan/php-authenticator"
+	},
+	"minimum-stability": "stable",
+	"prefer-stable": true,
+	"require": {
+		"php": "^8.2",
+		"chillerlan/php-settings-container": "^3.2.1",
+		"paragonie/constant_time_encoding": "^3.0"
+	},
+	"require-dev": {
+		"ext-curl": "*",
+		"ext-json": "*",
+		"ext-sodium": "*",
+		"phpmd/phpmd": "^2.15",
+		"phpstan/phpstan": "^1.11",
+		"phpstan/phpstan-deprecation-rules": "^1.2",
+		"phpunit/phpunit": "^11.2",
+		"squizlabs/php_codesniffer": "^3.10"
+	},
+	"suggest": {
+		"chillerlan/php-qrcode": "Create QR Codes for use with an authenticator app."
+	},
+	"autoload": {
+		"psr-4": {
+			"chillerlan\\Authenticator\\": "src"
+		}
+	},
+	"autoload-dev": {
+		"psr-4": {
+			"chillerlan\\AuthenticatorTest\\": "tests"
+		}
+	},
+	"scripts": {
+		"phpcs": "@php vendor/bin/phpcs",
+		"phpunit": "@php vendor/bin/phpunit",
+		"phpstan": "@php vendor/bin/phpstan"
+	},
+	"config": {
+		"lock": false,
+		"sort-packages": true,
+		"platform-check": true
+	}
+}

vendor/chillerlan/php-authenticator/src/Authenticator.php

@@ -0,0 +1,168 @@
+<?php
+/**
+ * Class Authenticator
+ *
+ * @created      24.11.2015
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2015 Smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator;
+
+use chillerlan\Authenticator\Authenticators\AuthenticatorInterface;
+use chillerlan\Settings\SettingsContainerInterface;
+use InvalidArgumentException;
+use SensitiveParameter;
+use function http_build_query;
+use function rawurlencode;
+use function sprintf;
+use function trim;
+use const PHP_QUERY_RFC3986;
+
+/**
+ * Yet another Google authenticator implementation!
+ *
+ * @link https://tools.ietf.org/html/rfc4226
+ * @link https://tools.ietf.org/html/rfc6238
+ * @link https://github.com/google/google-authenticator
+ * @link https://openauthentication.org/specifications-technical-resources/
+ * @link https://blog.ircmaxell.com/2014/11/its-all-about-time.html
+ */
+class Authenticator{
+
+	protected SettingsContainerInterface|AuthenticatorOptions $options;
+	protected AuthenticatorInterface                          $authenticator;
+	protected string                                          $mode = AuthenticatorInterface::TOTP;
+
+	/**
+	 * Authenticator constructor
+	 */
+	public function __construct(
+		SettingsContainerInterface|AuthenticatorOptions $options = new AuthenticatorOptions,
+		string|null $secret = null
+	){
+		// phpcs:ignore
+		$this->setOptions($options);
+
+		if($secret !== null){
+			$this->setSecret($secret);
+		}
+
+	}
+
+	/**
+	 * Sets an options instance and invokes an authenticator according to the given mode
+	 *
+	 * Please note that this will reset the secret phrase stored with the authenticator instance
+	 * if a different mode than the current is given.
+	 */
+	public function setOptions(SettingsContainerInterface|AuthenticatorOptions $options):self{
+		$this->options = $options;
+
+		// invoke a new authenticator interface if necessary
+		if(!isset($this->authenticator) || $this->options->mode !== $this->mode){
+			$this->mode          = $this->options->mode;
+			$this->authenticator = new (AuthenticatorInterface::MODES[$this->options->mode])($this->options);
+		}
+
+		$this->authenticator->setOptions($this->options);
+
+		return $this;
+	}
+
+	/**
+	 * Sets a secret phrase from a Base32 representation
+	 *
+	 * @codeCoverageIgnore
+	 */
+	public function setSecret(#[SensitiveParameter] string $encodedSecret):self{
+		$this->authenticator->setSecret($encodedSecret);
+
+		return $this;
+	}
+
+	/**
+	 * Returns a Base32 representation of the current secret phrase
+	 *
+	 * @codeCoverageIgnore
+	 */
+	public function getSecret():string{
+		return $this->authenticator->getSecret();
+	}
+
+	/**
+	 * Generates a new (secure random) secret phrase
+	 *
+	 * @codeCoverageIgnore
+	 */
+	public function createSecret(int|null $length = null):string{
+		return $this->authenticator->createSecret($length);
+	}
+
+	/**
+	 * Creates a new OTP code with the given secret
+	 *
+	 * $data may be
+	 *  - a UNIX timestamp (TOTP)
+	 *  - a counter value (HOTP)
+	 *
+	 * @codeCoverageIgnore
+	 */
+	public function code(int|null $data = null):string{
+		return $this->authenticator->code($data);
+	}
+
+	/**
+	 * Checks the given $code against the secret
+	 *
+	 * $data may be
+	 *  - a UNIX timestamp (TOTP)
+	 *  - a counter value (HOTP)
+	 *
+	 * @codeCoverageIgnore
+	 */
+	public function verify(#[SensitiveParameter] string $otp, int|null $data = null):bool{
+		return $this->authenticator->verify($otp, $data);
+	}
+
+	/**
+	 * Creates a URI for use in QR codes for example
+	 *
+	 * @link https://github.com/google/google-authenticator/wiki/Key-Uri-Format#parameters
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	public function getUri(string $label, string $issuer, int|null $hotpCounter = null, bool|null $omitSettings = null):string{
+		$label  = trim($label);
+		$issuer = trim($issuer);
+
+		if(empty($label) || empty($issuer)){
+			throw new InvalidArgumentException('$label and $issuer cannot be empty');
+		}
+
+		$values = [
+			'secret' => $this->authenticator->getSecret(),
+			'issuer' => $issuer,
+		];
+
+		if($omitSettings !== true){
+			$values['digits']    = $this->options->digits;
+			$values['algorithm'] = $this->options->algorithm;
+
+			if($this->mode === AuthenticatorInterface::TOTP){
+				$values['period'] = $this->options->period;
+			}
+
+			if($this->mode === AuthenticatorInterface::HOTP && $hotpCounter !== null){
+				$values['counter'] = $hotpCounter;
+			}
+		}
+
+		$values = http_build_query($values, '', '&', PHP_QUERY_RFC3986);
+
+		return sprintf('otpauth://%s/%s?%s', $this->mode, rawurlencode($label), $values);
+	}
+
+}

vendor/chillerlan/php-authenticator/src/AuthenticatorOptions.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * Class AuthenticatorOptions
+ *
+ * @created      07.03.2019
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2019 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator;
+
+use chillerlan\Settings\SettingsContainerAbstract;
+
+/**
+ *
+ */
+class AuthenticatorOptions extends SettingsContainerAbstract{
+	use AuthenticatorOptionsTrait;
+}

vendor/chillerlan/php-authenticator/src/AuthenticatorOptionsTrait.php

@@ -0,0 +1,178 @@
+<?php
+/**
+ * Trait AuthenticatorOptionsTrait
+ *
+ * @created      07.03.2019
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2019 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator;
+
+use chillerlan\Authenticator\Authenticators\AuthenticatorInterface;
+use InvalidArgumentException;
+use function in_array;
+use function strtolower;
+use function strtoupper;
+
+/**
+ * @property int    $digits
+ * @property int    $period
+ * @property int    $secret_length
+ * @property string $algorithm
+ * @property string $mode
+ * @property int    $adjacent
+ * @property int    $time_offset
+ * @property bool   $useLocalTime
+ * @property bool   $forceTimeRefresh
+ */
+trait AuthenticatorOptionsTrait{
+
+	/**
+	 * Code length: either 6 or 8
+	 */
+	protected int $digits = 6;
+
+	/**
+	 * Validation period (seconds): 15 - 60
+	 */
+	protected int $period = 30;
+
+	/**
+	 * Length of the secret phrase (bytes, unencoded binary)
+	 *
+	 * @see \random_bytes()
+	 */
+	protected int $secret_length = 20;
+
+	/**
+	 * Hash algorithm:
+	 *
+	 *   - `AuthenticatorInterface::ALGO_SHA1`
+	 *   - `AuthenticatorInterface::ALGO_SHA256`
+	 *   - `AuthenticatorInterface::ALGO_SHA512`
+	 */
+	protected string $algorithm = AuthenticatorInterface::ALGO_SHA1;
+
+	/**
+	 * Authenticator mode:
+	 *
+	 *   - `AuthenticatorInterface::HOTP`  = counter based
+	 *   - `AuthenticatorInterface::TOTP`  = time based
+	 *   - `AuthenticatorInterface::STEAM` = time based (Steam Guard)
+	 */
+	protected string $mode = AuthenticatorInterface::TOTP;
+
+	/**
+	 * Number of allowed adjacent codes
+	 */
+	protected int $adjacent = 1;
+
+	/**
+	 * A fixed time offset that will be added to the current time value
+	 *
+	 * @see \chillerlan\Authenticator\Authenticators\AuthenticatorInterface::getCounter()
+	 */
+	protected int $time_offset = 0;
+
+	/**
+	 * Whether to use local time or request server time from the API
+	 *
+	 * This can be useful when the device time sync is unreliable.
+	 *
+	 * note: API requests needs ext-curl installed
+	 */
+	protected bool $useLocalTime = true;
+
+	/**
+	 * Whether to force refreshing server time on each call or use the time returned from the last request
+	 */
+	protected bool $forceTimeRefresh = false;
+
+	/**
+	 * Sets the code length to either 6 or 8
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	protected function set_digits(int $digits):void{
+
+		if(!in_array($digits, [6, 8], true)){
+			throw new InvalidArgumentException('Invalid code length: '.$digits);
+		}
+
+		$this->digits = $digits;
+	}
+
+	/**
+	 * Sets the period to a value between 15 and 60 seconds
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	protected function set_period(int $period):void{
+
+		if($period < 15 || $period > 60){
+			throw new InvalidArgumentException('Invalid period: '.$period);
+		}
+
+		$this->period = $period;
+	}
+
+	/**
+	 * Sets the hash algorithm
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	protected function set_algorithm(string $algorithm):void{
+		$algorithm = strtoupper($algorithm);
+
+		if(!in_array($algorithm, AuthenticatorInterface::HASH_ALGOS, true)){
+			throw new InvalidArgumentException('Invalid algorithm: '.$algorithm);
+		}
+
+		$this->algorithm = $algorithm;
+	}
+
+	/**
+	 * Sets the authenticator mode
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	protected function set_mode(string $mode):void{
+		$mode = strtolower($mode);
+
+		if(!isset(AuthenticatorInterface::MODES[$mode])){
+			throw new InvalidArgumentException('Invalid mode: '.$mode);
+		}
+
+		$this->mode = $mode;
+	}
+
+	/**
+	 * Sets the adjacent amount
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	protected function set_adjacent(int $adjacent):void{
+
+		if($adjacent < 0){
+			throw new InvalidArgumentException('Invalid adjacent: '.$adjacent);
+		}
+
+		$this->adjacent = $adjacent;
+	}
+
+	/**
+	 * @throws \InvalidArgumentException
+	 */
+	protected function set_secret_length(int $secret_length):void{
+		// ~ 80 to 640 bits
+		if($secret_length < 16 || $secret_length > 1024){
+			throw new InvalidArgumentException('Invalid secret length: '.$secret_length);
+		}
+
+		$this->secret_length = $secret_length;
+	}
+
+}

vendor/chillerlan/php-authenticator/src/Authenticators/AuthenticatorAbstract.php

@@ -0,0 +1,119 @@
+<?php
+/**
+ * Class AuthenticatorAbstract
+ *
+ * @created      25.06.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Authenticators;
+
+use chillerlan\Authenticator\AuthenticatorOptions;
+use chillerlan\Authenticator\Common\Base32;
+use chillerlan\Settings\SettingsContainerInterface;
+use InvalidArgumentException;
+use RuntimeException;
+use SensitiveParameter;
+use function random_bytes;
+use function time;
+use function trim;
+
+/**
+ *
+ */
+abstract class AuthenticatorAbstract implements AuthenticatorInterface{
+
+	protected const userAgent = 'chillerlanAuthenticator/5.0 +https://github.com/chillerlan/php-authenticator';
+
+	protected SettingsContainerInterface|AuthenticatorOptions $options;
+	protected string|null                                     $secret          = null;
+	protected int                                             $serverTime      = 0;
+	protected int                                             $lastRequestTime = 0;
+
+	/**
+	 * AuthenticatorInterface constructor
+	 */
+	public function __construct(SettingsContainerInterface|AuthenticatorOptions $options = new AuthenticatorOptions){
+		$this->setOptions($options);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function setOptions(SettingsContainerInterface $options):AuthenticatorInterface{
+		$this->options = $options;
+
+		return $this;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function setSecret(#[SensitiveParameter] string $encodedSecret):AuthenticatorInterface{
+		$this->secret = Base32::decode($this->checkEncodedSecret($encodedSecret));
+
+		return $this;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getSecret():string{
+
+		if($this->secret === null){
+			throw new RuntimeException('No secret set');
+		}
+
+		return Base32::encode($this->secret);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function createSecret(int|null $length = null):string{
+		$length ??= $this->options->secret_length;
+
+		if($length < 16){
+			throw new InvalidArgumentException('Invalid secret length: '.$length);
+		}
+
+		$this->secret = random_bytes($length);
+
+		return $this->getSecret();
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getServertime():int{
+		return time();
+	}
+
+	/**
+	 * Get an adjusted time stamp for the given server time
+	 */
+	protected function getAdjustedTime(int $serverTime, int $lastRequestTime):int{
+		$diff = (time() - $lastRequestTime);
+
+		return ($serverTime + $diff);
+	}
+
+	/**
+	 * Checks if the encoded secret is non-empty, returns the trimmed string on success
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	protected function checkEncodedSecret(string $encodedSecret):string{
+		$encodedSecret = trim($encodedSecret);
+
+		if($encodedSecret === ''){
+			throw new InvalidArgumentException('The given secret string is empty');
+		}
+
+		return $encodedSecret;
+	}
+
+}

vendor/chillerlan/php-authenticator/src/Authenticators/AuthenticatorInterface.php

@@ -0,0 +1,119 @@
+<?php
+/**
+ * Interface AuthenticatorInterface
+ *
+ * @created      15.06.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Authenticators;
+
+use chillerlan\Settings\SettingsContainerInterface;
+use SensitiveParameter;
+
+/**
+ *
+ */
+interface AuthenticatorInterface{
+
+	public const TOTP        = 'totp';
+	public const HOTP        = 'hotp';
+	public const STEAM_GUARD = 'steam';
+
+	public const ALGO_SHA1   = 'SHA1';
+	public const ALGO_SHA256 = 'SHA256';
+	public const ALGO_SHA512 = 'SHA512';
+
+	public const MODES = [
+		self::HOTP        => HOTP::class,
+		self::TOTP        => TOTP::class,
+		self::STEAM_GUARD => SteamGuard::class,
+	];
+
+	public const HASH_ALGOS = [
+		self::ALGO_SHA1,
+		self::ALGO_SHA256,
+		self::ALGO_SHA512,
+	];
+
+	/**
+	 * Sets the options
+	 */
+	public function setOptions(SettingsContainerInterface $options):AuthenticatorInterface;
+
+	/**
+	 * Sets a secret phrase from an encoded representation
+	 *
+	 * @throws \RuntimeException
+	 */
+	public function setSecret(#[SensitiveParameter] string $encodedSecret):AuthenticatorInterface;
+
+	/**
+	 * Returns an encoded representation of the current secret phrase
+	 *
+	 * @throws \RuntimeException
+	 */
+	public function getSecret():string;
+
+	/**
+	 * Generates a new (secure random) secret phrase
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	public function createSecret(int|null $length = null):string;
+
+	/**
+	 * Returns the current server time as UNIX timestamp for the given application (or `time()` if not applicable)
+	 */
+	public function getServertime():int;
+
+	/**
+	 * Prepares the given $data value and returns an integer that will be passed as counter value to the hash function
+	 *
+	 * @internal
+	 */
+	public function getCounter(int|null $data = null):int;
+
+	/**
+	 * HMAC hashes the given $data integer with the given secret
+	 *
+	 * @internal
+	 */
+	public function getHMAC(int $counter):string;
+
+	/**
+	 * Extracts the intermediate code from the given $hmac hash
+	 *
+	 * @internal
+	 */
+	public function getCode(#[SensitiveParameter] string $hmac):int;
+
+	/**
+	 * Formats the final output OTP from the given intermediate $code
+	 *
+	 * @internal
+	 */
+	public function getOTP(#[SensitiveParameter] int $code):string;
+
+	/**
+	 * Creates a new OTP code with the given secret
+	 *
+	 * $data may be
+	 *  - a UNIX timestamp (TOTP)
+	 *  - a counter value (HOTP)
+	 */
+	public function code(int|null $data = null):string;
+
+	/**
+	 * Checks the given $code against the secret
+	 *
+	 * $data may be
+	 *  - a UNIX timestamp (TOTP)
+	 *  - a counter value (HOTP)
+	 */
+	public function verify(#[SensitiveParameter] string $otp, int|null $data = null):bool;
+
+}

vendor/chillerlan/php-authenticator/src/Authenticators/HOTP.php

@@ -0,0 +1,93 @@
+<?php
+/**
+ * Class HOTP
+ *
+ * @created      15.06.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Authenticators;
+
+use RuntimeException;
+use SensitiveParameter;
+use function hash_equals;
+use function hash_hmac;
+use function pack;
+use function str_pad;
+use function strlen;
+use function unpack;
+use const PHP_INT_SIZE;
+use const STR_PAD_LEFT;
+
+/**
+ * @link https://tools.ietf.org/html/rfc4226
+ */
+class HOTP extends AuthenticatorAbstract{
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getCounter(int|null $data = null):int{
+		return ($data ?? 0);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getHMAC(int $counter):string{
+
+		if($this->secret === null){
+			throw new RuntimeException('No secret given');
+		}
+		// @codeCoverageIgnoreStart
+		$data = (PHP_INT_SIZE < 8)
+			? "\x00\x00\x00\x00".pack('N', $counter)
+			: pack('J', $counter);
+		// @codeCoverageIgnoreEnd
+		return hash_hmac($this->options->algorithm, $data, $this->secret, true);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getCode(#[SensitiveParameter] string $hmac):int{
+		$data = unpack('C*', $hmac);
+
+		if($data === false){
+			throw new RuntimeException('error while unpacking HMAC'); // @codeCoverageIgnore
+		}
+
+		$b = ($data[strlen($hmac)] & 0xF);
+		// phpcs:ignore
+		return (($data[$b + 1] & 0x7F) << 24) | ($data[$b + 2] << 16) | ($data[$b + 3] << 8) | $data[$b + 4];
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getOTP(#[SensitiveParameter] int $code):string{
+		$code %= (10 ** $this->options->digits);
+
+		return str_pad((string)$code, $this->options->digits, '0', STR_PAD_LEFT);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function code(int|null $data = null):string{
+		$hmac = $this->getHMAC($this->getCounter($data));
+
+		return $this->getOTP($this->getCode($hmac));
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function verify(#[SensitiveParameter] string $otp, int|null $data = null):bool{
+		return hash_equals($this->code($data), $otp);
+	}
+
+}

vendor/chillerlan/php-authenticator/src/Authenticators/SteamGuard.php

@@ -0,0 +1,162 @@
+<?php
+/**
+ * Class SteamGuard
+ *
+ * @created      20.06.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ *
+ * @noinspection PhpComposerExtensionStubsInspection
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Authenticators;
+
+use chillerlan\Authenticator\Common\Base64;
+use RuntimeException;
+use SensitiveParameter;
+use function curl_close;
+use function curl_exec;
+use function curl_getinfo;
+use function curl_init;
+use function curl_setopt_array;
+use function floor;
+use function intdiv;
+use function is_array;
+use function json_decode;
+use function sprintf;
+use function time;
+use const CURLOPT_HTTPHEADER;
+use const CURLOPT_POST;
+use const CURLOPT_POSTFIELDS;
+use const CURLOPT_RETURNTRANSFER;
+
+/**
+ * /data/data/com.valvesoftware.android.steam.community/f/Steamguard-STEAMID64
+ *
+ * @see https://help.steampowered.com/en/faqs/view/7EFD-3CAE-64D3-1C31
+ * @see https://github.com/SoftCreatR/php-steam-guard
+ */
+final class SteamGuard extends TOTP{
+
+	private const steamCodeChars = '23456789BCDFGHJKMNPQRTVWXY';
+	private const steamTimeURL   = 'https://api.steampowered.com/ITwoFactorService/QueryTime/v0001';
+
+	/**
+	 * @inheritDoc
+	 */
+	public function setSecret(#[SensitiveParameter] string $encodedSecret):AuthenticatorInterface{
+		$this->secret = Base64::decode($this->checkEncodedSecret($encodedSecret));
+
+		return $this;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getSecret():string{
+
+		if($this->secret === null){
+			throw new RuntimeException('No secret set');
+		}
+
+		return Base64::encode($this->secret);
+	}
+
+	/**
+	 * @inheritDoc
+	 * @codeCoverageIgnore
+	 */
+	public function createSecret(int|null $length = null):string{
+		throw new RuntimeException('Not implemented');
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getCounter(int|null $data = null):int{
+		// the period is fixed to 30 seconds for Steam Guard
+		$this->options->period = 30;
+
+		return parent::getCounter($data);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getHMAC(int $counter):string{
+		// algorithm is fixed to sha1 for Steam Guard
+		$this->options->algorithm = self::ALGO_SHA1;
+
+		return parent::getHMAC($counter);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getOTP(#[SensitiveParameter] int $code):string{
+		$str = '';
+		$len = 26; // strlen($this::steamCodeChars)
+
+		// length is fixed to 5 for Steam
+		for($i = 0; $i < 5; $i++){
+			$str  .= $this::steamCodeChars[($code % $len)];
+			$code  = intdiv($code, $len);
+		}
+
+		return $str;
+	}
+
+	/**
+	 * @inheritDoc
+	 * @throws \RuntimeException
+	 */
+	public function getServerTime():int{
+
+		if($this->options->forceTimeRefresh === false && $this->serverTime !== 0){
+			return $this->getAdjustedTime($this->serverTime, $this->lastRequestTime);
+		}
+
+		$this->serverTime      = 0;
+		$this->lastRequestTime = 0;
+
+		$options = [
+			CURLOPT_RETURNTRANSFER => true,
+			CURLOPT_POST           => true,
+			CURLOPT_POSTFIELDS     => 'steamid=0',
+			CURLOPT_HTTPHEADER     => [sprintf('User-Agent: %s', $this::userAgent)],
+		];
+
+		$ch = curl_init($this::steamTimeURL);
+
+		// it's almost impossible to run into this, but hey, phpstan happy
+		if($ch === false){
+			throw new RuntimeException('curl_init error'); // @codeCoverageIgnore
+		}
+
+		curl_setopt_array($ch, $options);
+
+		$response = curl_exec($ch);
+		$info     = curl_getinfo($ch);
+
+		curl_close($ch);
+
+		if($info['http_code'] !== 200 || $response === false){
+			// I'm not going to investigate the error further as this shouldn't happen usually
+			throw new RuntimeException(sprintf('Steam API request error: HTTP/%s', $info['http_code'])); // @codeCoverageIgnore
+		}
+
+		$json = json_decode($response, true);
+
+		if(!is_array($json) || !isset($json['response']['server_time'])){
+			throw new RuntimeException('Unable to decode Steam API response'); // @codeCoverageIgnore
+		}
+
+		$this->serverTime      = (int)$json['response']['server_time'];
+		$this->lastRequestTime = (time() - (int)floor($info['total_time']));
+
+		return $this->getAdjustedTime($this->serverTime, $this->lastRequestTime);
+	}
+
+}

vendor/chillerlan/php-authenticator/src/Authenticators/TOTP.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Class TOTP
+ *
+ * @created      15.06.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Authenticators;
+
+use SensitiveParameter;
+use function floor;
+use function hash_equals;
+use function time;
+
+/**
+ * @link https://tools.ietf.org/html/rfc6238
+ */
+class TOTP extends HOTP{
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getCounter(int|null $data = null):int{
+		$data ??= time();
+
+		if($this->options->useLocalTime === false){
+			$data = $this->getServerTime();
+		}
+
+		return (int)floor(($data + $this->options->time_offset) / $this->options->period);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function verify(#[SensitiveParameter] string $otp, int|null $data = null):bool{
+		$limit = $this->options->adjacent;
+
+		if($limit === 0){
+			return parent::verify($otp, $data); // @codeCoverageIgnore
+		}
+
+		$timeslice = $this->getCounter($data);
+		// phpcs:ignore
+		for($i = -$limit; $i <= $limit; $i++){
+			$hash = $this->getHMAC($timeslice + $i);
+			$code = $this->getOTP($this->getCode($hash));
+
+			if(hash_equals($code, $otp)){
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+}

vendor/chillerlan/php-authenticator/src/Common/Base32.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Class Base32
+ *
+ * @created      23.06.2023
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Common;
+
+use InvalidArgumentException;
+use ParagonIE\ConstantTime\Base32 as ConstantTimeBase32;
+use SensitiveParameter;
+use function preg_match;
+
+/**
+ * Class to provide base32 encoding/decoding of strings using constant time functions
+ */
+final class Base32{
+
+	/**
+	 * The Base32 character set as defined by RFC3548
+	 *
+	 * @see https://datatracker.ietf.org/doc/html/rfc3548#section-5
+	 * @see https://datatracker.ietf.org/doc/html/rfc4648#section-6
+	 *
+	 * @var string
+	 */
+	public const CHARSET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567';
+
+	/**
+	 * Encode a string to Base32
+	 */
+	public static function encode(#[SensitiveParameter] string $str):string{
+		return ConstantTimeBase32::encodeUpperUnpadded($str);
+	}
+
+	/**
+	 * Decode a string from Base32
+	 */
+	public static function decode(#[SensitiveParameter] string $base32):string{
+		self::checkCharacterSet($base32);
+
+		return ConstantTimeBase32::decodeNoPadding($base32, true);
+	}
+
+	/**
+	 * @throws \InvalidArgumentException
+	 */
+	public static function checkCharacterSet(#[SensitiveParameter] string $base32):void{
+
+		if(!preg_match('/^['.self::CHARSET.']+$/', $base32)){
+			throw new InvalidArgumentException('Base32 must match RFC3548 character set');
+		}
+
+	}
+
+}

vendor/chillerlan/php-authenticator/src/Common/Base64.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * Class Base64
+ *
+ * @created      23.06.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Common;
+
+use InvalidArgumentException;
+use ParagonIE\ConstantTime\Base64 as ConstantTimeBase64;
+use SensitiveParameter;
+use function function_exists;
+use function preg_match;
+
+/**
+ * Class to provide base64 encoding/decoding of strings using constant time functions
+ */
+class Base64{
+
+	/**
+	 * The Base64 character set as defined by RFC3548
+	 *
+	 * @see https://datatracker.ietf.org/doc/html/rfc3548#section-3
+	 * @see https://datatracker.ietf.org/doc/html/rfc4648#section-4
+	 *
+	 * @var string
+	 */
+	public const CHARSET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+
+	/**
+	 * Encode a string to Base64
+	 */
+	public static function encode(#[SensitiveParameter] string $str):string{
+
+		if(function_exists('sodium_bin2base64')){
+			return \sodium_bin2base64($str, \SODIUM_BASE64_VARIANT_ORIGINAL);
+		}
+
+		return ConstantTimeBase64::encode($str);
+	}
+
+	/**
+	 * Decode a string from Base64
+	 */
+	public static function decode(#[SensitiveParameter] string $base64):string{
+		self::checkCharacterSet($base64);
+
+		if(function_exists('sodium_base642bin')){
+			return \sodium_base642bin($base64, \SODIUM_BASE64_VARIANT_ORIGINAL);
+		}
+
+		return ConstantTimeBase64::decode($base64);
+	}
+
+	/**
+	 * @throws \InvalidArgumentException
+	 */
+	public static function checkCharacterSet(#[SensitiveParameter] string $base64):void{
+
+		if(!preg_match('#^[a-z\d/=+]+$#i', $base64)){
+			throw new InvalidArgumentException('Base64 must match RFC4648 character set');
+		}
+
+	}
+
+}

vendor/chillerlan/php-authenticator/src/Common/Hex.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * Class Hex
+ *
+ * @created      28.06.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Authenticator\Common;
+
+use InvalidArgumentException;
+use ParagonIE\ConstantTime\Hex as ConstantTimeHex;
+use SensitiveParameter;
+use function preg_match;
+
+/**
+ *
+ */
+class Hex{
+
+	/**
+	 * The allowed hex character set (either upper or lower case)
+	 *
+	 * @var string
+	 */
+	public const CHARSET = '1234567890ABCDEFabcdef';
+
+	/**
+	 * Encode a string to hexadecimal
+	 *
+	 * @codeCoverageIgnore
+	 */
+	public static function encode(#[SensitiveParameter] string $str):string{
+
+		if(function_exists('sodium_bin2hex')){
+			return \sodium_bin2hex($str);
+		}
+
+		return ConstantTimeHex::encode($str);
+	}
+
+	/**
+	 * Decode a string from hexadecimal
+	 *
+	 * @codeCoverageIgnore
+	 */
+	public static function decode(#[SensitiveParameter] string $hex):string{
+		self::checkCharacterSet($hex);
+
+		if(function_exists('sodium_hex2bin')){
+			return \sodium_hex2bin($hex);
+		}
+
+		return ConstantTimeHex::decode($hex);
+	}
+
+	/**
+	 * @throws \InvalidArgumentException
+	 */
+	public static function checkCharacterSet(#[SensitiveParameter] string $hex):void{
+
+		if(!preg_match('#^[a-f\d]+$#i', $hex)){
+			throw new InvalidArgumentException('hex string must match hexadecimal character set: 0-9, A-F, a-f');
+		}
+
+	}
+
+}

vendor/chillerlan/php-settings-container/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2018 Smiley <smiley@chillerlan.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/chillerlan/php-settings-container/README.md

@@ -0,0 +1,167 @@
+# chillerlan/php-settings-container
+
+A container class for settings objects - decouple configuration logic from your application! Not a DI container.
+- [`SettingsContainerInterface`](https://github.com/chillerlan/php-settings-container/blob/main/src/SettingsContainerInterface.php) provides immutable properties with magic getter & setter and some fancy.
+
+[![PHP Version Support][php-badge]][php]
+[![version][packagist-badge]][packagist]
+[![license][license-badge]][license]
+[![Continuous Integration][gh-action-badge]][gh-action]
+[![Coverage][coverage-badge]][coverage]
+[![Codacy][codacy-badge]][codacy]
+[![Packagist downloads][downloads-badge]][downloads]
+
+[php-badge]: https://img.shields.io/packagist/php-v/chillerlan/php-settings-container?logo=php&color=8892BF
+[php]: https://www.php.net/supported-versions.php
+[packagist-badge]: https://img.shields.io/packagist/v/chillerlan/php-settings-container.svg?logo=packagist
+[packagist]: https://packagist.org/packages/chillerlan/php-settings-container
+[license-badge]: https://img.shields.io/github/license/chillerlan/php-settings-container.svg
+[license]: https://github.com/chillerlan/php-settings-container/blob/main/LICENSE
+[coverage-badge]: https://img.shields.io/codecov/c/github/chillerlan/php-settings-container.svg?logo=codecov
+[coverage]: https://codecov.io/github/chillerlan/php-settings-container
+[codacy-badge]: https://img.shields.io/codacy/grade/bd2467799e2943d2853ce3ebad5af490/main?logo=codacy
+[codacy]: https://www.codacy.com/gh/chillerlan/php-settings-container/dashboard?branch=main
+[downloads-badge]: https://img.shields.io/packagist/dt/chillerlan/php-settings-container.svg?logo=packagist
+[downloads]: https://packagist.org/packages/chillerlan/php-settings-container/stats
+[gh-action-badge]: https://img.shields.io/github/actions/workflow/status/chillerlan/php-settings-container/ci.yml?branch=main&logo=github
+[gh-action]: https://github.com/chillerlan/php-settings-container/actions/workflows/ci.yml?query=branch%3Amain
+
+## Documentation
+
+### Installation
+**requires [composer](https://getcomposer.org)**
+
+*composer.json* (note: replace `dev-main` with a [version constraint](https://getcomposer.org/doc/articles/versions.md#writing-version-constraints), e.g. `^3.0` - see [releases](https://github.com/chillerlan/php-settings-container/releases) for valid versions)
+```json
+{
+	"require": {
+		"php": "^8.1",
+		"chillerlan/php-settings-container": "dev-main"
+	}
+}
+```
+
+Profit!
+
+## Usage
+
+The `SettingsContainerInterface` (wrapped in`SettingsContainerAbstract`) provides plug-in functionality for immutable object properties and adds some fancy, like loading/saving JSON, arrays etc.
+It takes an `iterable` as the only constructor argument and calls a method with the trait's name on invocation (`MyTrait::MyTrait()`) for each used trait.
+
+A PHPStan ruleset to exclude errors generated by accessing magic properties on `SettingsContainerInterface` can be found in `rules-magic-access.neon`.
+
+
+### Simple usage
+```php
+class MyContainer extends SettingsContainerAbstract{
+	protected string $foo;
+	protected string $bar;
+}
+```
+
+```php
+// use it just like a \stdClass (except the properties are fixed)
+$container = new MyContainer;
+$container->foo = 'what';
+$container->bar = 'foo';
+
+// which is equivalent to
+$container = new MyContainer(['bar' => 'foo', 'foo' => 'what']);
+// ...or try
+$container->fromJSON('{"foo": "what", "bar": "foo"}');
+
+
+// fetch all properties as array
+$container->toArray(); // -> ['foo' => 'what', 'bar' => 'foo']
+// or JSON
+$container->toJSON(); // -> {"foo": "what", "bar": "foo"}
+// JSON via JsonSerializable
+$json = json_encode($container); // -> {"foo": "what", "bar": "foo"}
+
+//non-existing properties will be ignored:
+$container->nope = 'what';
+
+var_dump($container->nope); // -> null
+```
+
+### Advanced usage
+```php
+// from library 1
+trait SomeOptions{
+	protected string $foo;
+	protected string $what;
+
+	// this method will be called in SettingsContainerAbstract::construct()
+	// after the properties have been set
+	protected function SomeOptions():void{
+		// just some constructor stuff...
+		$this->foo = strtoupper($this->foo);
+	}
+
+	/*
+	 * special prefixed magic setters & getters
+	 */
+
+	// this method will be called from __set() when property $what is set
+	protected function set_what(string $value):void{
+		$this->what = md5($value);
+	}
+
+	// this method is called on __get() for the property $what
+	protected function get_what():string{
+		return 'hash: '.$this->what;
+	}
+}
+
+// from library 2
+trait MoreOptions{
+	protected string $bar = 'whatever'; // provide default values
+}
+```
+
+```php
+$commonOptions = [
+	// SomeOptions
+	'foo' => 'whatever',
+	// MoreOptions
+	'bar' => 'nothing',
+];
+
+// now plug the several library options together to a single object
+$container = new class ($commonOptions) extends SettingsContainerAbstract{
+	use SomeOptions, MoreOptions;
+};
+
+var_dump($container->foo); // -> WHATEVER (constructor ran strtoupper on the value)
+var_dump($container->bar); // -> nothing
+
+$container->what = 'some value';
+var_dump($container->what); // -> hash: 5946210c9e93ae37891dfe96c3e39614 (custom getter added "hash: ")
+```
+
+### API
+
+#### [`SettingsContainerAbstract`](https://github.com/chillerlan/php-settings-container/blob/main/src/SettingsContainerAbstract.php)
+
+| method                                     | return                       | info                                                                                                                |
+|--------------------------------------------|------------------------------|---------------------------------------------------------------------------------------------------------------------|
+| `__construct(iterable $properties = null)` | -                            | calls `construct()` internally after the properties have been set                                                   |
+| (protected) `construct()`                  | void                         | calls a method with trait name as replacement constructor for each used trait                                       |
+| `__get(string $property)`                  | mixed                        | calls `$this->{'get_'.$property}()` if such a method exists                                                         |
+| `__set(string $property, $value)`          | void                         | calls `$this->{'set_'.$property}($value)` if such a method exists                                                   |
+| `__isset(string $property)`                | bool                         |                                                                                                                     |
+| `__unset(string $property)`                | void                         |                                                                                                                     |
+| `__toString()`                             | string                       | a JSON string                                                                                                       |
+| `toArray()`                                | array                        |                                                                                                                     |
+| `fromIterable(iterable $properties)`       | `SettingsContainerInterface` |                                                                                                                     |
+| `toJSON(int $jsonOptions = null)`          | string                       | accepts [JSON options constants](http://php.net/manual/json.constants.php)                                          |
+| `fromJSON(string $json)`                   | `SettingsContainerInterface` |                                                                                                                     |
+| `jsonSerialize()`                          | mixed                        | implements the [`JsonSerializable`](https://www.php.net/manual/en/jsonserializable.jsonserialize.php) interface     |
+| `serialize()`                              | string                       | implements the [`Serializable`](https://www.php.net/manual/en/serializable.serialize.php) interface                 |
+| `unserialize(string $data)`                | void                         | implements the [`Serializable`](https://www.php.net/manual/en/serializable.unserialize.php) interface               |
+| `__serialize()`                            | array                        | implements the [`Serializable`](https://www.php.net/manual/en/language.oop5.magic.php#object.serialize) interface   |
+| `__unserialize(array $data)`               | void                         | implements the [`Serializable`](https://www.php.net/manual/en/language.oop5.magic.php#object.unserialize) interface |
+
+## Disclaimer
+This might be either an utterly genius or completely stupid idea - you decide. However, i like it and it works.
+Also, this is not a dependency injection container. Stop using DI containers FFS.

vendor/chillerlan/php-settings-container/composer.json

@@ -0,0 +1,52 @@
+{
+	"name": "chillerlan/php-settings-container",
+	"description": "A container class for immutable settings objects. Not a DI container.",
+	"homepage": "https://github.com/chillerlan/php-settings-container",
+	"license": "MIT",
+	"type": "library",
+	"minimum-stability": "stable",
+	"keywords": [
+		"helper", "container", "settings", "configuration"
+	],
+	"authors": [
+		{
+			"name": "Smiley",
+			"email": "smiley@chillerlan.net",
+			"homepage": "https://github.com/codemasher"
+		}
+	],
+	"support": {
+		"issues": "https://github.com/chillerlan/php-settings-container/issues",
+		"source": "https://github.com/chillerlan/php-settings-container"
+	},
+	"require": {
+		"php": "^8.1",
+		"ext-json": "*"
+	},
+	"require-dev": {
+		"phpmd/phpmd": "^2.15",
+		"phpstan/phpstan": "^1.11",
+		"phpstan/phpstan-deprecation-rules": "^1.2",
+		"phpunit/phpunit": "^10.5",
+		"squizlabs/php_codesniffer": "^3.10"
+	},
+	"autoload": {
+		"psr-4": {
+			"chillerlan\\Settings\\": "src"
+		}
+	},
+	"autoload-dev": {
+		"psr-4": {
+			"chillerlan\\SettingsTest\\": "tests"
+		}
+	},
+	"scripts": {
+		"phpunit": "@php vendor/bin/phpunit",
+		"phpstan": "@php vendor/bin/phpstan"
+	},
+	"config": {
+		"lock": false,
+		"sort-packages": true,
+		"platform-check": true
+	}
+}

vendor/chillerlan/php-settings-container/rules-magic-access.neon

@@ -0,0 +1,4 @@
+parameters:
+	ignoreErrors:
+		# yes, these are magic
+		- message: "#^Access to an undefined property chillerlan\\\\Settings\\\\SettingsContainerInterface\\:\\:\\$[\\w]+\\.$#"

vendor/chillerlan/php-settings-container/src/SettingsContainerAbstract.php

@@ -0,0 +1,252 @@
+<?php
+/**
+ * Class SettingsContainerAbstract
+ *
+ * @created      28.08.2018
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2018 Smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Settings;
+
+use InvalidArgumentException, JsonException, ReflectionClass, ReflectionProperty;
+use function array_keys, get_object_vars, is_object, json_decode, json_encode,
+	json_last_error_msg, method_exists, property_exists, serialize, unserialize;
+use const JSON_THROW_ON_ERROR;
+
+abstract class SettingsContainerAbstract implements SettingsContainerInterface{
+
+	/**
+	 * SettingsContainerAbstract constructor.
+	 *
+	 * @phpstan-param array<string, mixed> $properties
+	 */
+	public function __construct(iterable|null $properties = null){
+
+		if(!empty($properties)){
+			$this->fromIterable($properties);
+		}
+
+		$this->construct();
+	}
+
+	/**
+	 * calls a method with trait name as replacement constructor for each used trait
+	 * (remember pre-php5 classname constructors? yeah, basically this.)
+	 */
+	protected function construct():void{
+		$traits = (new ReflectionClass($this))->getTraits();
+
+		foreach($traits as $trait){
+			$method = $trait->getShortName();
+
+			if(method_exists($this, $method)){
+				$this->{$method}();
+			}
+		}
+
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function __get(string $property):mixed{
+
+		if(!property_exists($this, $property) || $this->isPrivate($property)){
+			return null;
+		}
+
+		$method = 'get_'.$property;
+
+		if(method_exists($this, $method)){
+			return $this->{$method}();
+		}
+
+		return $this->{$property};
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function __set(string $property, mixed $value):void{
+
+		if(!property_exists($this, $property) || $this->isPrivate($property)){
+			return;
+		}
+
+		$method = 'set_'.$property;
+
+		if(method_exists($this, $method)){
+			$this->{$method}($value);
+
+			return;
+		}
+
+		$this->{$property} = $value;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function __isset(string $property):bool{
+		return isset($this->{$property}) && !$this->isPrivate($property);
+	}
+
+	/**
+	 * @internal Checks if a property is private
+	 */
+	protected function isPrivate(string $property):bool{
+		return (new ReflectionProperty($this, $property))->isPrivate();
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function __unset(string $property):void{
+
+		if($this->__isset($property)){
+			unset($this->{$property});
+		}
+
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function __toString():string{
+		return $this->toJSON();
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function toArray():array{
+		$properties = [];
+
+		foreach(array_keys(get_object_vars($this)) as $key){
+			$properties[$key] = $this->__get($key);
+		}
+
+		return $properties;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function fromIterable(iterable $properties):static{
+
+		foreach($properties as $key => $value){
+			$this->__set($key, $value);
+		}
+
+		return $this;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function toJSON(int|null $jsonOptions = null):string{
+		$json = json_encode($this, ($jsonOptions ?? 0));
+
+		if($json === false){
+			throw new JsonException(json_last_error_msg());
+		}
+
+		return $json;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function fromJSON(string $json):static{
+		/** @phpstan-var array<string, mixed> $data */
+		$data = json_decode($json, true, 512, JSON_THROW_ON_ERROR);
+
+		return $this->fromIterable($data);
+	}
+
+	/**
+	 * @inheritdoc
+	 * @return array<string, mixed>
+	 */
+	public function jsonSerialize():array{
+		return $this->toArray();
+	}
+
+	/**
+	 * Returns a serialized string representation of the object in its current state (except static/readonly properties)
+	 *
+	 * @inheritdoc
+	 * @see \chillerlan\Settings\SettingsContainerInterface::toArray()
+	 */
+	public function serialize():string{
+		return serialize($this);
+	}
+
+	/**
+	 * Restores the data (except static/readonly properties) from the given serialized object to the current instance
+	 *
+	 * @inheritdoc
+	 * @see \chillerlan\Settings\SettingsContainerInterface::fromIterable()
+	 */
+	public function unserialize(string $data):void{
+		$obj = unserialize($data);
+
+		if($obj === false || !is_object($obj)){
+			throw new InvalidArgumentException('The given serialized string is invalid');
+		}
+
+		$reflection = new ReflectionClass($obj);
+
+		if(!$reflection->isInstance($this)){
+			throw new InvalidArgumentException('The unserialized object does not match the class of this container');
+		}
+
+		$properties = $reflection->getProperties(~(ReflectionProperty::IS_STATIC | ReflectionProperty::IS_READONLY));
+
+		foreach($properties as $reflectionProperty){
+			$this->{$reflectionProperty->name} = $reflectionProperty->getValue($obj);
+		}
+
+	}
+
+	/**
+	 * Returns a serialized string representation of the object in its current state (except static/readonly properties)
+	 *
+	 * @inheritdoc
+	 * @see \chillerlan\Settings\SettingsContainerInterface::toArray()
+	 */
+	public function __serialize():array{
+
+		$properties = (new ReflectionClass($this))
+			->getProperties(~(ReflectionProperty::IS_STATIC | ReflectionProperty::IS_READONLY))
+		;
+
+		$data = [];
+
+		foreach($properties as $reflectionProperty){
+			$data[$reflectionProperty->name] = $reflectionProperty->getValue($this);
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Restores the data from the given array to the current instance
+	 *
+	 * @inheritdoc
+	 * @see \chillerlan\Settings\SettingsContainerInterface::fromIterable()
+	 *
+	 * @param array<string, mixed> $data
+	 */
+	public function __unserialize(array $data):void{
+
+		foreach($data as $key => $value){
+			$this->{$key} = $value;
+		}
+
+	}
+
+}

vendor/chillerlan/php-settings-container/src/SettingsContainerInterface.php

@@ -0,0 +1,86 @@
+<?php
+/**
+ * Interface SettingsContainerInterface
+ *
+ * @created      28.08.2018
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2018 Smiley
+ * @license      MIT
+ */
+declare(strict_types=1);
+
+namespace chillerlan\Settings;
+
+use JsonSerializable, Serializable;
+
+/**
+ * a generic container with magic getter and setter
+ */
+interface SettingsContainerInterface extends JsonSerializable, Serializable{
+
+	/**
+	 * Retrieve the value of $property
+	 *
+	 * @return mixed|null
+	 */
+	public function __get(string $property):mixed;
+
+	/**
+	 * Set $property to $value while avoiding private and non-existing properties
+	 */
+	public function __set(string $property, mixed $value):void;
+
+	/**
+	 * Checks if $property is set (aka. not null), excluding private properties
+	 */
+	public function __isset(string $property):bool;
+
+	/**
+	 * Unsets $property while avoiding private and non-existing properties
+	 */
+	public function __unset(string $property):void;
+
+	/**
+	 * @see \chillerlan\Settings\SettingsContainerInterface::toJSON()
+	 */
+	public function __toString():string;
+
+	/**
+	 * Returns an array representation of the settings object
+	 *
+	 * The values will be run through the magic __get(), which may also call custom getters.
+	 *
+	 * @return array<string, mixed>
+	 */
+	public function toArray():array;
+
+	/**
+	 * Sets properties from a given iterable
+	 *
+	 * The values will be run through the magic __set(), which may also call custom setters.
+	 *
+	 *  @phpstan-param array<string, mixed> $properties
+	 */
+	public function fromIterable(iterable $properties):static;
+
+	/**
+	 * Returns a JSON representation of the settings object
+	 *
+	 * @see \json_encode()
+	 * @see \chillerlan\Settings\SettingsContainerInterface::toArray()
+	 *
+	 * @throws \JsonException
+	 */
+	public function toJSON(int|null $jsonOptions = null):string;
+
+	/**
+	 * Sets properties from a given JSON string
+	 *
+	 * @see \chillerlan\Settings\SettingsContainerInterface::fromIterable()
+	 *
+	 * @throws \Exception
+	 * @throws \JsonException
+	 */
+	public function fromJSON(string $json):static;
+
+}

vendor/composer/ClassLoader.php

@@ -0,0 +1,585 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ * @see    https://www.php-fig.org/psr/psr-0/
+ * @see    https://www.php-fig.org/psr/psr-4/
+ */
+class ClassLoader
+{
+    /** @var \Closure(string):void */
+    private static $includeFile;
+
+    /** @var ?string */
+    private $vendorDir;
+
+    // PSR-4
+    /**
+     * @var array[]
+     * @psalm-var array<string, array<string, int>>
+     */
+    private $prefixLengthsPsr4 = array();
+    /**
+     * @var array[]
+     * @psalm-var array<string, array<int, string>>
+     */
+    private $prefixDirsPsr4 = array();
+    /**
+     * @var array[]
+     * @psalm-var array<string, string>
+     */
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    /**
+     * @var array[]
+     * @psalm-var array<string, array<string, string[]>>
+     */
+    private $prefixesPsr0 = array();
+    /**
+     * @var array[]
+     * @psalm-var array<string, string>
+     */
+    private $fallbackDirsPsr0 = array();
+
+    /** @var bool */
+    private $useIncludePath = false;
+
+    /**
+     * @var string[]
+     * @psalm-var array<string, string>
+     */
+    private $classMap = array();
+
+    /** @var bool */
+    private $classMapAuthoritative = false;
+
+    /**
+     * @var bool[]
+     * @psalm-var array<string, bool>
+     */
+    private $missingClasses = array();
+
+    /** @var ?string */
+    private $apcuPrefix;
+
+    /**
+     * @var self[]
+     */
+    private static $registeredLoaders = array();
+
+    /**
+     * @param ?string $vendorDir
+     */
+    public function __construct($vendorDir = null)
+    {
+        $this->vendorDir = $vendorDir;
+        self::initializeIncludeClosure();
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
+        }
+
+        return array();
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return array<string, array<int, string>>
+     */
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return array<string, string>
+     */
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return array<string, string>
+     */
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    /**
+     * @return string[] Array of classname => path
+     * @psalm-return array<string, string>
+     */
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param string[] $classMap Class to filename map
+     * @psalm-param array<string, string> $classMap
+     *
+     * @return void
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string          $prefix  The prefix
+     * @param string[]|string $paths   The PSR-0 root directories
+     * @param bool            $prepend Whether to prepend the directories
+     *
+     * @return void
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string          $prefix  The prefix/namespace, with trailing '\\'
+     * @param string[]|string $paths   The PSR-4 base directories
+     * @param bool            $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string          $prefix The prefix
+     * @param string[]|string $paths  The PSR-0 base directories
+     *
+     * @return void
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string          $prefix The prefix/namespace, with trailing '\\'
+     * @param string[]|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     *
+     * @return void
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     *
+     * @return void
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
+     *
+     * @param string|null $apcuPrefix
+     *
+     * @return void
+     */
+    public function setApcuPrefix($apcuPrefix)
+    {
+        $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
+    }
+
+    /**
+     * The APCu prefix in use, or null if APCu caching is not enabled.
+     *
+     * @return string|null
+     */
+    public function getApcuPrefix()
+    {
+        return $this->apcuPrefix;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     *
+     * @return void
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+
+        if (null === $this->vendorDir) {
+            return;
+        }
+
+        if ($prepend) {
+            self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
+        } else {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+            self::$registeredLoaders[$this->vendorDir] = $this;
+        }
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     *
+     * @return void
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+
+        if (null !== $this->vendorDir) {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+        }
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return true|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            $includeFile = self::$includeFile;
+            $includeFile($file);
+
+            return true;
+        }
+
+        return null;
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
+            return false;
+        }
+        if (null !== $this->apcuPrefix) {
+            $file = apcu_fetch($this->apcuPrefix.$class, $hit);
+            if ($hit) {
+                return $file;
+            }
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if (false === $file && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if (null !== $this->apcuPrefix) {
+            apcu_add($this->apcuPrefix.$class, $file);
+        }
+
+        if (false === $file) {
+            // Remember that this class does not exist.
+            $this->missingClasses[$class] = true;
+        }
+
+        return $file;
+    }
+
+    /**
+     * Returns the currently registered loaders indexed by their corresponding vendor directories.
+     *
+     * @return self[]
+     */
+    public static function getRegisteredLoaders()
+    {
+        return self::$registeredLoaders;
+    }
+
+    /**
+     * @param  string       $class
+     * @param  string       $ext
+     * @return string|false
+     */
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            $subPath = $class;
+            while (false !== $lastPos = strrpos($subPath, '\\')) {
+                $subPath = substr($subPath, 0, $lastPos);
+                $search = $subPath . '\\';
+                if (isset($this->prefixDirsPsr4[$search])) {
+                    $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
+                    foreach ($this->prefixDirsPsr4[$search] as $dir) {
+                        if (file_exists($file = $dir . $pathEnd)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+
+        return false;
+    }
+
+    /**
+     * @return void
+     */
+    private static function initializeIncludeClosure()
+    {
+        if (self::$includeFile !== null) {
+            return;
+        }
+
+        /**
+         * Scope isolated include.
+         *
+         * Prevents access to $this/self from included files.
+         *
+         * @param  string $file
+         * @return void
+         */
+        self::$includeFile = \Closure::bind(static function($file) {
+            include $file;
+        }, null, null);
+    }
+}

vendor/composer/InstalledVersions.php

@@ -0,0 +1,359 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer;
+
+use Composer\Autoload\ClassLoader;
+use Composer\Semver\VersionParser;
+
+/**
+ * This class is copied in every Composer installed project and available to all
+ *
+ * See also https://getcomposer.org/doc/07-runtime.md#installed-versions
+ *
+ * To require its presence, you can require `composer-runtime-api ^2.0`
+ *
+ * @final
+ */
+class InstalledVersions
+{
+    /**
+     * @var mixed[]|null
+     * @psalm-var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}|array{}|null
+     */
+    private static $installed;
+
+    /**
+     * @var bool|null
+     */
+    private static $canGetVendors;
+
+    /**
+     * @var array[]
+     * @psalm-var array<string, array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    private static $installedByVendor = array();
+
+    /**
+     * Returns a list of all package names which are present, either by being installed, replaced or provided
+     *
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackages()
+    {
+        $packages = array();
+        foreach (self::getInstalled() as $installed) {
+            $packages[] = array_keys($installed['versions']);
+        }
+
+        if (1 === \count($packages)) {
+            return $packages[0];
+        }
+
+        return array_keys(array_flip(\call_user_func_array('array_merge', $packages)));
+    }
+
+    /**
+     * Returns a list of all package names with a specific type e.g. 'library'
+     *
+     * @param  string   $type
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackagesByType($type)
+    {
+        $packagesByType = array();
+
+        foreach (self::getInstalled() as $installed) {
+            foreach ($installed['versions'] as $name => $package) {
+                if (isset($package['type']) && $package['type'] === $type) {
+                    $packagesByType[] = $name;
+                }
+            }
+        }
+
+        return $packagesByType;
+    }
+
+    /**
+     * Checks whether the given package is installed
+     *
+     * This also returns true if the package name is provided or replaced by another package
+     *
+     * @param  string $packageName
+     * @param  bool   $includeDevRequirements
+     * @return bool
+     */
+    public static function isInstalled($packageName, $includeDevRequirements = true)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (isset($installed['versions'][$packageName])) {
+                return $includeDevRequirements || !isset($installed['versions'][$packageName]['dev_requirement']) || $installed['versions'][$packageName]['dev_requirement'] === false;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Checks whether the given package satisfies a version constraint
+     *
+     * e.g. If you want to know whether version 2.3+ of package foo/bar is installed, you would call:
+     *
+     *   Composer\InstalledVersions::satisfies(new VersionParser, 'foo/bar', '^2.3')
+     *
+     * @param  VersionParser $parser      Install composer/semver to have access to this class and functionality
+     * @param  string        $packageName
+     * @param  string|null   $constraint  A version constraint to check for, if you pass one you have to make sure composer/semver is required by your package
+     * @return bool
+     */
+    public static function satisfies(VersionParser $parser, $packageName, $constraint)
+    {
+        $constraint = $parser->parseConstraints((string) $constraint);
+        $provided = $parser->parseConstraints(self::getVersionRanges($packageName));
+
+        return $provided->matches($constraint);
+    }
+
+    /**
+     * Returns a version constraint representing all the range(s) which are installed for a given package
+     *
+     * It is easier to use this via isInstalled() with the $constraint argument if you need to check
+     * whether a given version of a package is installed, and not just whether it exists
+     *
+     * @param  string $packageName
+     * @return string Version constraint usable with composer/semver
+     */
+    public static function getVersionRanges($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            $ranges = array();
+            if (isset($installed['versions'][$packageName]['pretty_version'])) {
+                $ranges[] = $installed['versions'][$packageName]['pretty_version'];
+            }
+            if (array_key_exists('aliases', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['aliases']);
+            }
+            if (array_key_exists('replaced', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['replaced']);
+            }
+            if (array_key_exists('provided', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['provided']);
+            }
+
+            return implode(' || ', $ranges);
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getPrettyVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['pretty_version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['pretty_version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as reference
+     */
+    public static function getReference($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['reference'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['reference'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as install path. Packages of type metapackages also have a null install path.
+     */
+    public static function getInstallPath($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            return isset($installed['versions'][$packageName]['install_path']) ? $installed['versions'][$packageName]['install_path'] : null;
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @return array
+     * @psalm-return array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}
+     */
+    public static function getRootPackage()
+    {
+        $installed = self::getInstalled();
+
+        return $installed[0]['root'];
+    }
+
+    /**
+     * Returns the raw installed.php data for custom implementations
+     *
+     * @deprecated Use getAllRawData() instead which returns all datasets for all autoloaders present in the process. getRawData only returns the first dataset loaded, which may not be what you expect.
+     * @return array[]
+     * @psalm-return array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}
+     */
+    public static function getRawData()
+    {
+        @trigger_error('getRawData only returns the first dataset loaded, which may not be what you expect. Use getAllRawData() instead which returns all datasets for all autoloaders present in the process.', E_USER_DEPRECATED);
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                self::$installed = include __DIR__ . '/installed.php';
+            } else {
+                self::$installed = array();
+            }
+        }
+
+        return self::$installed;
+    }
+
+    /**
+     * Returns the raw data of all installed.php which are currently loaded for custom implementations
+     *
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    public static function getAllRawData()
+    {
+        return self::getInstalled();
+    }
+
+    /**
+     * Lets you reload the static array from another file
+     *
+     * This is only useful for complex integrations in which a project needs to use
+     * this class but then also needs to execute another project's autoloader in process,
+     * and wants to ensure both projects have access to their version of installed.php.
+     *
+     * A typical case would be PHPUnit, where it would need to make sure it reads all
+     * the data it needs from this class, then call reload() with
+     * `require $CWD/vendor/composer/installed.php` (or similar) as input to make sure
+     * the project in which it runs can then also use this class safely, without
+     * interference between PHPUnit's dependencies and the project's dependencies.
+     *
+     * @param  array[] $data A vendor/composer/installed.php data set
+     * @return void
+     *
+     * @psalm-param array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $data
+     */
+    public static function reload($data)
+    {
+        self::$installed = $data;
+        self::$installedByVendor = array();
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    private static function getInstalled()
+    {
+        if (null === self::$canGetVendors) {
+            self::$canGetVendors = method_exists('Composer\Autoload\ClassLoader', 'getRegisteredLoaders');
+        }
+
+        $installed = array();
+
+        if (self::$canGetVendors) {
+            foreach (ClassLoader::getRegisteredLoaders() as $vendorDir => $loader) {
+                if (isset(self::$installedByVendor[$vendorDir])) {
+                    $installed[] = self::$installedByVendor[$vendorDir];
+                } elseif (is_file($vendorDir.'/composer/installed.php')) {
+                    /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                    $required = require $vendorDir.'/composer/installed.php';
+                    $installed[] = self::$installedByVendor[$vendorDir] = $required;
+                    if (null === self::$installed && strtr($vendorDir.'/composer', '\\', '/') === strtr(__DIR__, '\\', '/')) {
+                        self::$installed = $installed[count($installed) - 1];
+                    }
+                }
+            }
+        }
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                $required = require __DIR__ . '/installed.php';
+                self::$installed = $required;
+            } else {
+                self::$installed = array();
+            }
+        }
+
+        if (self::$installed !== array()) {
+            $installed[] = self::$installed;
+        }
+
+        return $installed;
+    }
+}

vendor/composer/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) Nils Adermann, Jordi Boggiano
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/composer/autoload_classmap.php

@@ -0,0 +1,123 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
+    'DateError' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateError.php',
+    'DateException' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateException.php',
+    'DateInvalidOperationException' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateInvalidOperationException.php',
+    'DateInvalidTimeZoneException' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateInvalidTimeZoneException.php',
+    'DateMalformedIntervalStringException' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateMalformedIntervalStringException.php',
+    'DateMalformedPeriodStringException' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateMalformedPeriodStringException.php',
+    'DateMalformedStringException' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateMalformedStringException.php',
+    'DateObjectError' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateObjectError.php',
+    'DateRangeError' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/DateRangeError.php',
+    'FPDF' => $vendorDir . '/setasign/fpdf/fpdf.php',
+    'Override' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/Override.php',
+    'SQLite3Exception' => $vendorDir . '/symfony/polyfill-php83/Resources/stubs/SQLite3Exception.php',
+    'ezcBase' => $vendorDir . '/zetacomponents/base/src/base.php',
+    'ezcBaseAutoloadException' => $vendorDir . '/zetacomponents/base/src/exceptions/autoload.php',
+    'ezcBaseAutoloadOptions' => $vendorDir . '/zetacomponents/base/src/options/autoload.php',
+    'ezcBaseConfigurationInitializer' => $vendorDir . '/zetacomponents/base/src/interfaces/configuration_initializer.php',
+    'ezcBaseDoubleClassRepositoryPrefixException' => $vendorDir . '/zetacomponents/base/src/exceptions/double_class_repository_prefix.php',
+    'ezcBaseException' => $vendorDir . '/zetacomponents/base/src/exceptions/exception.php',
+    'ezcBaseExportable' => $vendorDir . '/zetacomponents/base/src/interfaces/exportable.php',
+    'ezcBaseExtensionNotFoundException' => $vendorDir . '/zetacomponents/base/src/exceptions/extension_not_found.php',
+    'ezcBaseFeatures' => $vendorDir . '/zetacomponents/base/src/features.php',
+    'ezcBaseFile' => $vendorDir . '/zetacomponents/base/src/file.php',
+    'ezcBaseFileException' => $vendorDir . '/zetacomponents/base/src/exceptions/file_exception.php',
+    'ezcBaseFileFindContext' => $vendorDir . '/zetacomponents/base/src/structs/file_find_context.php',
+    'ezcBaseFileIoException' => $vendorDir . '/zetacomponents/base/src/exceptions/file_io.php',
+    'ezcBaseFileNotFoundException' => $vendorDir . '/zetacomponents/base/src/exceptions/file_not_found.php',
+    'ezcBaseFilePermissionException' => $vendorDir . '/zetacomponents/base/src/exceptions/file_permission.php',
+    'ezcBaseFunctionalityNotSupportedException' => $vendorDir . '/zetacomponents/base/src/exceptions/functionality_not_supported.php',
+    'ezcBaseInit' => $vendorDir . '/zetacomponents/base/src/init.php',
+    'ezcBaseInitCallbackConfiguredException' => $vendorDir . '/zetacomponents/base/src/exceptions/init_callback_configured.php',
+    'ezcBaseInitInvalidCallbackClassException' => $vendorDir . '/zetacomponents/base/src/exceptions/invalid_callback_class.php',
+    'ezcBaseInvalidParentClassException' => $vendorDir . '/zetacomponents/base/src/exceptions/invalid_parent_class.php',
+    'ezcBaseMetaData' => $vendorDir . '/zetacomponents/base/src/metadata.php',
+    'ezcBaseMetaDataPearReader' => $vendorDir . '/zetacomponents/base/src/metadata/pear.php',
+    'ezcBaseMetaDataTarballReader' => $vendorDir . '/zetacomponents/base/src/metadata/tarball.php',
+    'ezcBaseOptions' => $vendorDir . '/zetacomponents/base/src/options.php',
+    'ezcBasePersistable' => $vendorDir . '/zetacomponents/base/src/interfaces/persistable.php',
+    'ezcBasePropertyNotFoundException' => $vendorDir . '/zetacomponents/base/src/exceptions/property_not_found.php',
+    'ezcBasePropertyPermissionException' => $vendorDir . '/zetacomponents/base/src/exceptions/property_permission.php',
+    'ezcBaseRepositoryDirectory' => $vendorDir . '/zetacomponents/base/src/structs/repository_directory.php',
+    'ezcBaseSettingNotFoundException' => $vendorDir . '/zetacomponents/base/src/exceptions/setting_not_found.php',
+    'ezcBaseSettingValueException' => $vendorDir . '/zetacomponents/base/src/exceptions/setting_value.php',
+    'ezcBaseStruct' => $vendorDir . '/zetacomponents/base/src/struct.php',
+    'ezcBaseValueException' => $vendorDir . '/zetacomponents/base/src/exceptions/value.php',
+    'ezcBaseWhateverException' => $vendorDir . '/zetacomponents/base/src/exceptions/whatever.php',
+    'ezcMail' => $vendorDir . '/zetacomponents/mail/src/mail.php',
+    'ezcMailAddress' => $vendorDir . '/zetacomponents/mail/src/structs/mail_address.php',
+    'ezcMailCharsetConverter' => $vendorDir . '/zetacomponents/mail/src/internal/charset_convert.php',
+    'ezcMailComposer' => $vendorDir . '/zetacomponents/mail/src/composer.php',
+    'ezcMailComposerOptions' => $vendorDir . '/zetacomponents/mail/src/options/composer_options.php',
+    'ezcMailContentDispositionHeader' => $vendorDir . '/zetacomponents/mail/src/structs/content_disposition_header.php',
+    'ezcMailDeliveryStatus' => $vendorDir . '/zetacomponents/mail/src/parts/delivery_status.php',
+    'ezcMailDeliveryStatusParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/delivery_status_parser.php',
+    'ezcMailException' => $vendorDir . '/zetacomponents/mail/src/exceptions/mail_exception.php',
+    'ezcMailFile' => $vendorDir . '/zetacomponents/mail/src/parts/fileparts/disk_file.php',
+    'ezcMailFileParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/file_parser.php',
+    'ezcMailFilePart' => $vendorDir . '/zetacomponents/mail/src/parts/file.php',
+    'ezcMailFileSet' => $vendorDir . '/zetacomponents/mail/src/transports/file/file_set.php',
+    'ezcMailHeaderFolder' => $vendorDir . '/zetacomponents/mail/src/internal/header_folder.php',
+    'ezcMailHeadersHolder' => $vendorDir . '/zetacomponents/mail/src/parser/headers_holder.php',
+    'ezcMailImapSet' => $vendorDir . '/zetacomponents/mail/src/transports/imap/imap_set.php',
+    'ezcMailImapSetOptions' => $vendorDir . '/zetacomponents/mail/src/options/imap_set_options.php',
+    'ezcMailImapTransport' => $vendorDir . '/zetacomponents/mail/src/transports/imap/imap_transport.php',
+    'ezcMailImapTransportOptions' => $vendorDir . '/zetacomponents/mail/src/options/imap_options.php',
+    'ezcMailInvalidLimitException' => $vendorDir . '/zetacomponents/mail/src/exceptions/invalid_limit.php',
+    'ezcMailMboxSet' => $vendorDir . '/zetacomponents/mail/src/transports/mbox/mbox_set.php',
+    'ezcMailMboxTransport' => $vendorDir . '/zetacomponents/mail/src/transports/mbox/mbox_transport.php',
+    'ezcMailMtaTransport' => $vendorDir . '/zetacomponents/mail/src/transports/mta/mta_transport.php',
+    'ezcMailMultipart' => $vendorDir . '/zetacomponents/mail/src/parts/multipart.php',
+    'ezcMailMultipartAlternative' => $vendorDir . '/zetacomponents/mail/src/parts/multiparts/multipart_alternative.php',
+    'ezcMailMultipartAlternativeParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/multipart_alternative_parser.php',
+    'ezcMailMultipartDigest' => $vendorDir . '/zetacomponents/mail/src/parts/multiparts/multipart_digest.php',
+    'ezcMailMultipartDigestParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/multipart_digest_parser.php',
+    'ezcMailMultipartMixed' => $vendorDir . '/zetacomponents/mail/src/parts/multiparts/multipart_mixed.php',
+    'ezcMailMultipartMixedParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/multipart_mixed_parser.php',
+    'ezcMailMultipartParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/multipart_parser.php',
+    'ezcMailMultipartRelated' => $vendorDir . '/zetacomponents/mail/src/parts/multiparts/multipart_related.php',
+    'ezcMailMultipartRelatedParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/multipart_related_parser.php',
+    'ezcMailMultipartReport' => $vendorDir . '/zetacomponents/mail/src/parts/multiparts/multipart_report.php',
+    'ezcMailMultipartReportParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/multipart_report_parser.php',
+    'ezcMailNoSuchMessageException' => $vendorDir . '/zetacomponents/mail/src/exceptions/no_such_message.php',
+    'ezcMailOffsetOutOfRangeException' => $vendorDir . '/zetacomponents/mail/src/exceptions/offset_out_of_range.php',
+    'ezcMailOptions' => $vendorDir . '/zetacomponents/mail/src/options/mail_options.php',
+    'ezcMailParser' => $vendorDir . '/zetacomponents/mail/src/parser/parser.php',
+    'ezcMailParserOptions' => $vendorDir . '/zetacomponents/mail/src/options/parser_options.php',
+    'ezcMailParserSet' => $vendorDir . '/zetacomponents/mail/src/parser/interfaces/parser_set.php',
+    'ezcMailParserShutdownHandler' => $vendorDir . '/zetacomponents/mail/src/parser/shutdown_handler.php',
+    'ezcMailPart' => $vendorDir . '/zetacomponents/mail/src/interfaces/part.php',
+    'ezcMailPartParser' => $vendorDir . '/zetacomponents/mail/src/parser/interfaces/part_parser.php',
+    'ezcMailPartWalkContext' => $vendorDir . '/zetacomponents/mail/src/structs/walk_context.php',
+    'ezcMailPop3Set' => $vendorDir . '/zetacomponents/mail/src/transports/pop3/pop3_set.php',
+    'ezcMailPop3Transport' => $vendorDir . '/zetacomponents/mail/src/transports/pop3/pop3_transport.php',
+    'ezcMailPop3TransportOptions' => $vendorDir . '/zetacomponents/mail/src/options/pop3_options.php',
+    'ezcMailRfc2231Implementation' => $vendorDir . '/zetacomponents/mail/src/parser/rfc2231_implementation.php',
+    'ezcMailRfc822Digest' => $vendorDir . '/zetacomponents/mail/src/parts/rfc822_digest.php',
+    'ezcMailRfc822DigestParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/rfc822_digest_parser.php',
+    'ezcMailRfc822Parser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/rfc822_parser.php',
+    'ezcMailSmtpTransport' => $vendorDir . '/zetacomponents/mail/src/transports/smtp/smtp_transport.php',
+    'ezcMailSmtpTransportOptions' => $vendorDir . '/zetacomponents/mail/src/options/smtp_options.php',
+    'ezcMailStorageSet' => $vendorDir . '/zetacomponents/mail/src/transports/storage/storage_set.php',
+    'ezcMailStreamFile' => $vendorDir . '/zetacomponents/mail/src/parts/fileparts/stream_file.php',
+    'ezcMailText' => $vendorDir . '/zetacomponents/mail/src/parts/text.php',
+    'ezcMailTextParser' => $vendorDir . '/zetacomponents/mail/src/parser/parts/text_parser.php',
+    'ezcMailTools' => $vendorDir . '/zetacomponents/mail/src/tools.php',
+    'ezcMailTransport' => $vendorDir . '/zetacomponents/mail/src/interfaces/transport.php',
+    'ezcMailTransportConnection' => $vendorDir . '/zetacomponents/mail/src/transports/transport_connection.php',
+    'ezcMailTransportException' => $vendorDir . '/zetacomponents/mail/src/exceptions/transport_exception.php',
+    'ezcMailTransportMta' => $vendorDir . '/zetacomponents/mail/src/transports/mta/transport_mta.php',
+    'ezcMailTransportOptions' => $vendorDir . '/zetacomponents/mail/src/options/transport_options.php',
+    'ezcMailTransportSmtp' => $vendorDir . '/zetacomponents/mail/src/transports/smtp/transport_smtp.php',
+    'ezcMailTransportSmtpException' => $vendorDir . '/zetacomponents/mail/src/exceptions/transport_smtp_exception.php',
+    'ezcMailVariableSet' => $vendorDir . '/zetacomponents/mail/src/transports/variable/var_set.php',
+    'ezcMailVirtualFile' => $vendorDir . '/zetacomponents/mail/src/parts/fileparts/virtual_file.php',
+);

vendor/composer/autoload_files.php

@@ -0,0 +1,16 @@
+<?php
+
+// autoload_files.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    '6e3fae29631ef280660b3cdad06f25a8' => $vendorDir . '/symfony/deprecation-contracts/function.php',
+    '320cde22f66dd4f5d3fd621d3e88b98f' => $vendorDir . '/symfony/polyfill-ctype/bootstrap.php',
+    '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php',
+    '383eaff206634a77a1be54e64e6459c7' => $vendorDir . '/sabre/uri/lib/functions.php',
+    '662a729f963d39afe703c9d9b7ab4a8c' => $vendorDir . '/symfony/polyfill-php83/bootstrap.php',
+    '3569eecfeed3bcf0bad3c998a494ecb8' => $vendorDir . '/sabre/xml/lib/Deserializer/functions.php',
+    '93aa591bc4ca510c520999e34229ee79' => $vendorDir . '/sabre/xml/lib/Serializer/functions.php',
+);

vendor/composer/autoload_namespaces.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Smalot\\PdfParser\\' => array($vendorDir . '/smalot/pdfparser/src'),
+);

vendor/composer/autoload_psr4.php

@@ -0,0 +1,38 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'setasign\\Fpdi\\' => array($vendorDir . '/setasign/fpdi/src'),
+    'horstoeko\\zugferd\\' => array($vendorDir . '/horstoeko/zugferd/src'),
+    'horstoeko\\stringmanagement\\' => array($vendorDir . '/horstoeko/stringmanagement/src'),
+    'horstoeko\\mimedb\\' => array($vendorDir . '/horstoeko/mimedb/src'),
+    'chillerlan\\Settings\\' => array($vendorDir . '/chillerlan/php-settings-container/src'),
+    'chillerlan\\Authenticator\\' => array($vendorDir . '/chillerlan/php-authenticator/src'),
+    'Symfony\\Polyfill\\Php83\\' => array($vendorDir . '/symfony/polyfill-php83'),
+    'Symfony\\Polyfill\\Mbstring\\' => array($vendorDir . '/symfony/polyfill-mbstring'),
+    'Symfony\\Polyfill\\Ctype\\' => array($vendorDir . '/symfony/polyfill-ctype'),
+    'Symfony\\Contracts\\Translation\\' => array($vendorDir . '/symfony/translation-contracts'),
+    'Symfony\\Component\\Yaml\\' => array($vendorDir . '/symfony/yaml'),
+    'Symfony\\Component\\Validator\\' => array($vendorDir . '/symfony/validator'),
+    'Symfony\\Component\\Process\\' => array($vendorDir . '/symfony/process'),
+    'Symfony\\Component\\Finder\\' => array($vendorDir . '/symfony/finder'),
+    'Sabre\\Xml\\' => array($vendorDir . '/sabre/xml/lib'),
+    'Sabre\\Uri\\' => array($vendorDir . '/sabre/uri/lib'),
+    'ParagonIE\\ConstantTime\\' => array($vendorDir . '/paragonie/constant_time_encoding/src'),
+    'PHPStan\\PhpDocParser\\' => array($vendorDir . '/phpstan/phpdoc-parser/src'),
+    'NumNum\\UBL\\Tests\\' => array($vendorDir . '/num-num/ubl-invoice/tests'),
+    'NumNum\\UBL\\' => array($vendorDir . '/num-num/ubl-invoice/src'),
+    'Metadata\\' => array($vendorDir . '/jms/metadata/src'),
+    'JMS\\Serializer\\' => array($vendorDir . '/jms/serializer/src'),
+    'GoetasWebservices\\Xsd\\XsdToPhpRuntime\\' => array($vendorDir . '/goetas-webservices/xsd2php-runtime/src'),
+    'Endroid\\QrCode\\' => array($vendorDir . '/endroid/qr-code/src'),
+    'Doctrine\\Instantiator\\' => array($vendorDir . '/doctrine/instantiator/src/Doctrine/Instantiator'),
+    'Doctrine\\Common\\Lexer\\' => array($vendorDir . '/doctrine/lexer/src'),
+    'DASPRiD\\Enum\\' => array($vendorDir . '/dasprid/enum/src'),
+    'Curl\\' => array($vendorDir . '/php-curl-class/php-curl-class/src/Curl'),
+    'BaconQrCode\\' => array($vendorDir . '/bacon/bacon-qr-code/src'),
+);

vendor/composer/autoload_real.php

@@ -0,0 +1,50 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInit1a0e4ea3fb1d108a445b9e95a7c251ad
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    /**
+     * @return \Composer\Autoload\ClassLoader
+     */
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        require __DIR__ . '/platform_check.php';
+
+        spl_autoload_register(array('ComposerAutoloaderInit1a0e4ea3fb1d108a445b9e95a7c251ad', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(__DIR__));
+        spl_autoload_unregister(array('ComposerAutoloaderInit1a0e4ea3fb1d108a445b9e95a7c251ad', 'loadClassLoader'));
+
+        require __DIR__ . '/autoload_static.php';
+        call_user_func(\Composer\Autoload\ComposerStaticInit1a0e4ea3fb1d108a445b9e95a7c251ad::getInitializer($loader));
+
+        $loader->register(true);
+
+        $filesToLoad = \Composer\Autoload\ComposerStaticInit1a0e4ea3fb1d108a445b9e95a7c251ad::$files;
+        $requireFile = \Closure::bind(static function ($fileIdentifier, $file) {
+            if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
+                $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
+
+                require $file;
+            }
+        }, null, null);
+        foreach ($filesToLoad as $fileIdentifier => $file) {
+            $requireFile($fileIdentifier, $file);
+        }
+
+        return $loader;
+    }
+}