Asset::dataurl()   A
last analyzed

Complexity

Conditions 3
Paths 2

Size

Total Lines 7
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 3
eloc 3
c 0
b 0
f 0
nc 2
nop 0
dl 0
loc 7
rs 10
1
<?php
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/**
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 * This file is part of Cecil.
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 *
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 * (c) Arnaud Ligny <[email protected]>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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declare(strict_types=1);
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namespace Cecil\Assets;
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use Cecil\Assets\Image\Optimizer;
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use Cecil\Builder;
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use Cecil\Collection\Page\Page;
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use Cecil\Config;
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use Cecil\Exception\ConfigException;
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use Cecil\Exception\RuntimeException;
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use Cecil\Url;
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use Cecil\Util;
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use MatthiasMullie\Minify;
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use ScssPhp\ScssPhp\Compiler;
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use ScssPhp\ScssPhp\OutputStyle;
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use wapmorgan\Mp3Info\Mp3Info;
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/**
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 * Asset class.
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 *
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 * Represents an asset (file) in the Cecil project.
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 * Handles file locating, content reading, compiling, minifying, fingerprinting,
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 * resizing images, and more.
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 */
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class Asset implements \ArrayAccess
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{
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    public const IMAGE_THUMB = 'thumbnails';
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    /** @var Builder */
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    protected $builder;
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    /** @var Config */
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    protected $config;
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    /** @var array */
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    protected $data = [];
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    /** @var array Cache tags */
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    protected $cacheTags = [];
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    /**
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     * Creates an Asset from a file path, an array of files path or an URL.
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     * Options:
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     * [
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     *     'filename' => <string>,
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     *     'leading_slash' => <bool>
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     *     'ignore_missing' => <bool>,
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     *     'fingerprint' => <bool>,
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     *     'minify' => <bool>,
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     *     'optimize' => <bool>,
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     *     'fallback' => <string>,
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     *     'useragent' => <string>,
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     * ]
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     *
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     * @param Builder      $builder
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     * @param string|array $paths
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     * @param array|null   $options
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     *
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     * @throws RuntimeException
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     */
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    public function __construct(Builder $builder, string|array $paths, array|null $options = null)
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    {
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        $this->builder = $builder;
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        $this->config = $builder->getConfig();
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        $paths = \is_array($paths) ? $paths : [$paths];
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        // checks path(s)
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        array_walk($paths, function ($path) {
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            // must be a string
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            if (!\is_string($path)) {
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                throw new RuntimeException(\sprintf('The path of an asset must be a string ("%s" given).', \gettype($path)));
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            }
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            // can't be empty
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            if (empty($path)) {
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                throw new RuntimeException('The path of an asset can\'t be empty.');
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            }
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            // can't be relative
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            if (substr($path, 0, 2) == '..') {
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                throw new RuntimeException(\sprintf('The path of asset "%s" is wrong: it must be directly relative to `assets` or `static` directory, or a remote URL.', $path));
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            }
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        });
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        $this->data = [
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            'file'     => '',    // absolute file path
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            'files'    => [],    // array of absolute files path
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            'missing'  => false, // if file not found but missing allowed: 'missing' is true
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            '_path'    => '',    // original path
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            'path'     => '',    // public path
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            'url'      => null,  // URL if it's a remote file
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            'ext'      => '',    // file extension
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            'type'     => '',    // file type (e.g.: image, audio, video, etc.)
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            'subtype'  => '',    // file media type (e.g.: image/png, audio/mp3, etc.)
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            'size'     => 0,     // file size (in bytes)
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            'width'    => 0,     // image width (in pixels)
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            'height'   => 0,     // image height (in pixels)
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            'exif'     => [],    // image exif data
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            'content'  => '',    // file content
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            'hash'     => '',    // file content hash (md5)
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        ];
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        // handles options
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        $options = array_merge(
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            [
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                'filename'       => '',
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                'leading_slash'  => true,
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                'ignore_missing' => false,
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                'fingerprint'    => $this->config->isEnabled('assets.fingerprint'),
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                'minify'         => $this->config->isEnabled('assets.minify'),
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                'optimize'       => $this->config->isEnabled('assets.images.optimize'),
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                'fallback'       => '',
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                'useragent'      => (string) $this->config->get('assets.remote.useragent.default'),
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            ],
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            \is_array($options) ? $options : []
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        );
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        // cache
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        $cache = new Cache($this->builder, 'assets');
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        $locateCacheKey = \sprintf('%s_locate__%s__%s', $options['filename'] ?: implode('_', $paths), $this->builder->getBuildId(), $this->builder->getVersion());
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        // locate file(s) and get content
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        if (!$cache->has($locateCacheKey)) {
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            $pathsCount = \count($paths);
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            for ($i = 0; $i < $pathsCount; $i++) {
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                try {
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                    $this->data['missing'] = false;
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                    $locate = $this->locateFile($paths[$i], $options['fallback'], $options['useragent']);
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                    $file = $locate['file'];
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                    $path = $locate['path'];
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                    $type = Util\File::getMediaType($file)[0];
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                    if ($i > 0) { // bundle
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                        if ($type != $this->data['type']) {
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                            throw new RuntimeException(\sprintf('Asset bundle type error (%s != %s).', $type, $this->data['type']));
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                        }
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                    }
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                    $this->data['file'] = $file;
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                    $this->data['files'][] = $file;
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                    $this->data['path'] = $path;
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                    $this->data['url'] = Util\File::isRemote($paths[$i]) ? $paths[$i] : null;
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                    $this->data['ext'] = Util\File::getExtension($file);
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                    $this->data['type'] = $type;
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                    $this->data['subtype'] = Util\File::getMediaType($file)[1];
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                    $this->data['size'] += filesize($file);
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                    $this->data['content'] .= Util\File::fileGetContents($file);
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                    $this->data['hash'] = hash('md5', $this->data['content']);
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                    // bundle default filename
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                    $filename = $options['filename'];
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                    if ($pathsCount > 1 && empty($filename)) {
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                        switch ($this->data['ext']) {
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                            case 'scss':
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                            case 'css':
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                                $filename = 'styles.css';
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                                break;
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                            case 'js':
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                                $filename = 'scripts.js';
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                                break;
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                            default:
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                                throw new RuntimeException(\sprintf('Asset bundle supports %s files only.', '.scss, .css and .js'));
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                        }
168
                    }
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                    // apply bundle filename to path
170
                    if (!empty($filename)) {
171
                        $this->data['path'] = $filename;
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                    }
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                    // add leading slash
174
                    if ($options['leading_slash']) {
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                        $this->data['path'] = '/' . ltrim($this->data['path'], '/');
176
                    }
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                    $this->data['_path'] = $this->data['path'];
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                } catch (RuntimeException $e) {
179
                    if ($options['ignore_missing']) {
180
                        $this->data['missing'] = true;
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                        continue;
182
                    }
183
                    throw new RuntimeException(
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                        \sprintf('Can\'t handle asset "%s".', $paths[$i]),
185
                        previous: $e
186
                    );
187
                }
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            }
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            $cache->set($locateCacheKey, $this->data);
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        }
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        $this->data = $cache->get($locateCacheKey);
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193
        // missing
194
        if ($this->data['missing']) {
195
            return;
196
        }
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        // cache
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        $cache = new Cache($this->builder, 'assets');
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        // create cache tags from options
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        $this->cacheTags = $options;
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        // remove unnecessary cache tags
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        unset($this->cacheTags['optimize'], $this->cacheTags['ignore_missing'], $this->cacheTags['fallback'], $this->cacheTags['useragent']);
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        if (!\in_array($this->data['ext'], ['css', 'js', 'scss'])) {
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            unset($this->cacheTags['minify']);
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        }
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        // optimize image?
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        $optimize = false;
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        if ($options['optimize'] && $this->data['type'] == 'image' && !$this->isImageInCdn()) {
210
            $optimize = true;
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            $quality = (int) $this->config->get('assets.images.quality');
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            $this->cacheTags['quality'] = $quality;
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        }
214
        $cacheKey = $cache->createKeyFromAsset($this, $this->cacheTags);
215
        if (!$cache->has($cacheKey)) {
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            // fingerprinting
217
            if ($options['fingerprint']) {
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                $this->doFingerprint();
219
            }
220
            // compiling Sass files
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            $this->doCompile();
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            // minifying (CSS and JavaScript files)
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            if ($options['minify']) {
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                $this->doMinify();
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            }
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            // get image width, height and exif
227
            if ($this->data['type'] == 'image') {
228
                $this->data['width'] = $this->getWidth();
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                $this->data['height'] = $this->getHeight();
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                if ($this->data['subtype'] == 'image/jpeg') {
231
                    $this->data['exif'] = Util\File::readExif($this->data['file']);
232
                }
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            }
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            $cache->set($cacheKey, $this->data, $this->config->get('cache.assets.ttl'));
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            $this->builder->getLogger()->debug(\sprintf('Asset cached: "%s"', $this->data['path']));
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            // optimizing images files (in cache directory)
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            if ($optimize) {
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                $this->optimize($cache->getContentFilePathname($this->data['path']), $this->data['path'], $quality);
239
            }
240
        }
241
        $this->data = $cache->get($cacheKey);
242
    }
243
244
    /**
245
     * Returns path.
246
     */
247
    public function __toString(): string
248
    {
249
        $this->save();
250
251
        if ($this->isImageInCdn()) {
252
            return $this->buildImageCdnUrl();
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        }
254
255
        if ($this->builder->getConfig()->isEnabled('canonicalurl')) {
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            return (string) new Url($this->builder, $this->data['path'], ['canonical' => true]);
257
        }
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        return $this->data['path'];
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    }
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262
    /**
263
     * Compiles a SCSS + cache.
264
     *
265
     * @throws RuntimeException
266
     */
267
    public function compile(): self
268
    {
269
        $this->cacheTags['compile'] = true;
270
        $cache = new Cache($this->builder, 'assets');
271
        $cacheKey = $cache->createKeyFromAsset($this, $this->cacheTags);
272
        if (!$cache->has($cacheKey)) {
273
            $this->doCompile();
274
            $cache->set($cacheKey, $this->data, $this->config->get('cache.assets.ttl'));
275
        }
276
        $this->data = $cache->get($cacheKey);
277
278
        return $this;
279
    }
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281
    /**
282
     * Minifying a CSS or a JS.
283
     */
284
    public function minify(): self
285
    {
286
        $this->cacheTags['minify'] = true;
287
        $cache = new Cache($this->builder, 'assets');
288
        $cacheKey = $cache->createKeyFromAsset($this, $this->cacheTags);
289
        if (!$cache->has($cacheKey)) {
290
            $this->doMinify();
291
            $cache->set($cacheKey, $this->data, $this->config->get('cache.assets.ttl'));
292
        }
293
        $this->data = $cache->get($cacheKey);
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295
        return $this;
296
    }
297
298
    /**
299
     * Add hash to the file name + cache.
300
     */
301
    public function fingerprint(): self
302
    {
303
        $this->cacheTags['fingerprint'] = true;
304
        $cache = new Cache($this->builder, 'assets');
305
        $cacheKey = $cache->createKeyFromAsset($this, $this->cacheTags);
306
        if (!$cache->has($cacheKey)) {
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            $this->doFingerprint();
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            $cache->set($cacheKey, $this->data, $this->config->get('cache.assets.ttl'));
309
        }
310
        $this->data = $cache->get($cacheKey);
311
312
        return $this;
313
    }
314
315
    /**
316
     * Scales down an image to a new $width.
317
     *
318
     * @throws RuntimeException
319
     */
320
    public function resize(int $width): self
321
    {
322
        $this->checkImage();
323
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        // if the image is already smaller than the requested width, return it
325
        if ($width >= $this->data['width']) {
326
            return $this;
327
        }
328
329
        $assetResized = clone $this;
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        $assetResized->data['width'] = $width;
331
332
        if ($this->isImageInCdn()) {
333
            $assetResized->data['height'] = round($this->data['height'] / ($this->data['width'] / $width));
334
335
            return $assetResized; // returns asset with the new dimensions only: CDN do the rest of the job
336
        }
337
338
        $quality = (int) $this->config->get('assets.images.quality');
339
340
        $cache = new Cache($this->builder, 'assets');
341
        $assetResized->cacheTags['quality'] = $quality;
342
        $assetResized->cacheTags['width'] = $width;
343
        $cacheKey = $cache->createKeyFromAsset($assetResized, $assetResized->cacheTags);
344
        if (!$cache->has($cacheKey)) {
345
            $assetResized->data['content'] = Image::resize($assetResized, $width, $quality);
346
            $assetResized->data['path'] = '/' . Util::joinPath(
347
                (string) $this->config->get('assets.target'),
348
                self::IMAGE_THUMB,
349
                (string) $width,
350
                $assetResized->data['path']
351
            );
352
            $assetResized->data['path'] = $this->deduplicateThumbPath($assetResized->data['path']);
353
            $assetResized->data['height'] = $assetResized->getHeight();
354
            $assetResized->data['size'] = \strlen($assetResized->data['content']);
355
356
            $cache->set($cacheKey, $assetResized->data, $this->config->get('cache.assets.ttl'));
357
            $this->builder->getLogger()->debug(\sprintf('Asset resized: "%s" (%sx)', $assetResized->data['path'], $width));
358
        }
359
        $assetResized->data = $cache->get($cacheKey);
360
361
        return $assetResized;
362
    }
363
364
    /**
365
     * Crops the image to the specified width and height, keeping the specified position.
366
     *
367
     * @throws RuntimeException
368
     */
369
    public function cover(int $width, int $height): self
370
    {
371
        $this->checkImage();
372
373
        $assetResized = clone $this;
374
        $assetResized->data['width'] = $width;
375
        $assetResized->data['height'] = $height;
376
377
        $quality = (int) $this->config->get('assets.images.quality');
378
379
        $cache = new Cache($this->builder, 'assets');
380
        $assetResized->cacheTags['quality'] = $quality;
381
        $assetResized->cacheTags['width'] = $width;
382
        $assetResized->cacheTags['height'] = $height;
383
        $cacheKey = $cache->createKeyFromAsset($assetResized, $assetResized->cacheTags);
384
        if (!$cache->has($cacheKey)) {
385
            $assetResized->data['content'] = Image::cover($assetResized, $width, $height, $quality);
386
            $assetResized->data['path'] = '/' . Util::joinPath(
387
                (string) $this->config->get('assets.target'),
388
                self::IMAGE_THUMB,
389
                (string) $width . 'x' . (string) $height,
390
                $assetResized->data['path']
391
            );
392
            $assetResized->data['path'] = $this->deduplicateThumbPath($assetResized->data['path']);
393
            $assetResized->data['size'] = \strlen($assetResized->data['content']);
394
395
            $cache->set($cacheKey, $assetResized->data, $this->config->get('cache.assets.ttl'));
396
            $this->builder->getLogger()->debug(\sprintf('Asset resized: "%s" (%sx%s)', $assetResized->data['path'], $width, $height));
397
        }
398
        $assetResized->data = $cache->get($cacheKey);
399
400
        return $assetResized;
401
    }
402
403
    /**
404
     * Creates a maskable image (with a padding = 20%).
405
     *
406
     * @throws RuntimeException
407
     */
408
    public function maskable(?int $padding = null): self
409
    {
410
        $this->checkImage();
411
412
        if ($padding === null) {
413
            $padding = 20; // default padding
414
        }
415
416
        $assetMaskable = clone $this;
417
418
        $quality = (int) $this->config->get('assets.images.quality');
419
420
        $cache = new Cache($this->builder, 'assets');
421
        $assetMaskable->cacheTags['maskable'] = true;
422
        $cacheKey = $cache->createKeyFromAsset($assetMaskable, $assetMaskable->cacheTags);
423
        if (!$cache->has($cacheKey)) {
424
            $assetMaskable->data['content'] = Image::maskable($assetMaskable, $quality, $padding);
425
            $assetMaskable->data['path'] = '/' . Util::joinPath(
426
                (string) $this->config->get('assets.target'),
427
                'maskable',
428
                $assetMaskable->data['path']
429
            );
430
            $assetMaskable->data['size'] = \strlen($assetMaskable->data['content']);
431
432
            $cache->set($cacheKey, $assetMaskable->data, $this->config->get('cache.assets.ttl'));
433
            $this->builder->getLogger()->debug(\sprintf('Asset maskabled: "%s"', $assetMaskable->data['path']));
434
        }
435
        $assetMaskable->data = $cache->get($cacheKey);
436
437
        return $assetMaskable;
438
    }
439
440
    /**
441
     * Converts an image asset to $format format.
442
     *
443
     * @throws RuntimeException
444
     */
445
    public function convert(string $format, ?int $quality = null): self
446
    {
447
        if ($this->data['type'] != 'image') {
448
            throw new RuntimeException(\sprintf('Not able to convert "%s" (%s) to %s: not an image.', $this->data['path'], $this->data['type'], $format));
449
        }
450
451
        if ($quality === null) {
452
            $quality = (int) $this->config->get('assets.images.quality');
453
        }
454
455
        $asset = clone $this;
456
        $asset['ext'] = $format;
457
        $asset->data['subtype'] = "image/$format";
458
459
        if ($this->isImageInCdn()) {
460
            return $asset; // returns the asset with the new extension only: CDN do the rest of the job
461
        }
462
463
        $cache = new Cache($this->builder, 'assets');
464
        $this->cacheTags['quality'] = $quality;
465
        if ($this->data['width']) {
466
            $this->cacheTags['width'] = $this->data['width'];
467
        }
468
        $cacheKey = $cache->createKeyFromAsset($asset, $this->cacheTags);
469
        if (!$cache->has($cacheKey)) {
470
            $asset->data['content'] = Image::convert($asset, $format, $quality);
471
            $asset->data['path'] = preg_replace('/\.' . $this->data['ext'] . '$/m', ".$format", $this->data['path']);
472
            $asset->data['size'] = \strlen($asset->data['content']);
473
            $cache->set($cacheKey, $asset->data, $this->config->get('cache.assets.ttl'));
474
            $this->builder->getLogger()->debug(\sprintf('Asset converted: "%s" (%s -> %s)', $asset->data['path'], $this->data['ext'], $format));
475
        }
476
        $asset->data = $cache->get($cacheKey);
477
478
        return $asset;
479
    }
480
481
    /**
482
     * Converts an image asset to WebP format.
483
     *
484
     * @throws RuntimeException
485
     */
486
    public function webp(?int $quality = null): self
487
    {
488
        return $this->convert('webp', $quality);
489
    }
490
491
    /**
492
     * Converts an image asset to AVIF format.
493
     *
494
     * @throws RuntimeException
495
     */
496
    public function avif(?int $quality = null): self
497
    {
498
        return $this->convert('avif', $quality);
499
    }
500
501
    /**
502
     * Implements \ArrayAccess.
503
     */
504
    #[\ReturnTypeWillChange]
505
    public function offsetSet($offset, $value): void
506
    {
507
        if (!\is_null($offset)) {
508
            $this->data[$offset] = $value;
509
        }
510
    }
511
512
    /**
513
     * Implements \ArrayAccess.
514
     */
515
    #[\ReturnTypeWillChange]
516
    public function offsetExists($offset): bool
517
    {
518
        return isset($this->data[$offset]);
519
    }
520
521
    /**
522
     * Implements \ArrayAccess.
523
     */
524
    #[\ReturnTypeWillChange]
525
    public function offsetUnset($offset): void
526
    {
527
        unset($this->data[$offset]);
528
    }
529
530
    /**
531
     * Implements \ArrayAccess.
532
     */
533
    #[\ReturnTypeWillChange]
534
    public function offsetGet($offset)
535
    {
536
        return isset($this->data[$offset]) ? $this->data[$offset] : null;
537
    }
538
539
    /**
540
     * Hashing content of an asset with the specified algo, sha384 by default.
541
     * Used for SRI (Subresource Integrity).
542
     *
543
     * @see https://developer.mozilla.org/fr/docs/Web/Security/Subresource_Integrity
544
     */
545
    public function getIntegrity(string $algo = 'sha384'): string
546
    {
547
        return \sprintf('%s-%s', $algo, base64_encode(hash($algo, $this->data['content'], true)));
548
    }
549
550
    /**
551
     * Returns MP3 file infos.
552
     *
553
     * @see https://github.com/wapmorgan/Mp3Info
554
     */
555
    public function getAudio(): Mp3Info
556
    {
557
        if ($this->data['type'] !== 'audio') {
558
            throw new RuntimeException(\sprintf('Not able to get audio infos of "%s".', $this->data['path']));
559
        }
560
561
        return new Mp3Info($this->data['file']);
562
    }
563
564
    /**
565
     * Returns MP4 file infos.
566
     *
567
     * @see https://github.com/clwu88/php-read-mp4info
568
     */
569
    public function getVideo(): array
570
    {
571
        if ($this->data['type'] !== 'video') {
572
            throw new RuntimeException(\sprintf('Not able to get video infos of "%s".', $this->data['path']));
573
        }
574
575
        return (array) \Clwu\Mp4::getInfo($this->data['file']);
576
    }
577
578
    /**
579
     * Returns the Data URL (encoded in Base64).
580
     *
581
     * @throws RuntimeException
582
     */
583
    public function dataurl(): string
584
    {
585
        if ($this->data['type'] == 'image' && !Image::isSVG($this)) {
586
            return Image::getDataUrl($this, (int) $this->config->get('assets.images.quality'));
587
        }
588
589
        return \sprintf('data:%s;base64,%s', $this->data['subtype'], base64_encode($this->data['content']));
590
    }
591
592
    /**
593
     * Adds asset path to the list of assets to save.
594
     *
595
     * @throws RuntimeException
596
     */
597
    public function save(): void
598
    {
599
        if ($this->data['missing']) {
600
            return;
601
        }
602
603
        $cache = new Cache($this->builder, 'assets');
604
        if (empty($this->data['path']) || !Util\File::getFS()->exists($cache->getContentFilePathname($this->data['path']))) {
605
            throw new RuntimeException(
606
                \sprintf('Can\'t add "%s" to assets list. Please clear cache and retry.', $this->data['path'])
607
            );
608
        }
609
610
        $this->builder->addAsset($this->data['path']);
611
    }
612
613
    /**
614
     * Is the asset an image and is it in CDN?
615
     */
616
    public function isImageInCdn(): bool
617
    {
618
        if (
619
            $this->data['type'] == 'image'
620
            && $this->config->isEnabled('assets.images.cdn')
621
            && $this->data['ext'] != 'ico'
622
            && (Image::isSVG($this) && $this->config->isEnabled('assets.images.cdn.svg'))
623
        ) {
624
            return true;
625
        }
626
        // handle remote image?
627
        if ($this->data['url'] !== null && $this->config->isEnabled('assets.images.cdn.remote')) {
628
            return true;
629
        }
630
631
        return false;
632
    }
633
634
    /**
635
     * Builds a relative path from a URL.
636
     * Used for remote files.
637
     */
638
    public static function buildPathFromUrl(string $url): string
639
    {
640
        $host = parse_url($url, PHP_URL_HOST);
641
        $path = parse_url($url, PHP_URL_PATH);
642
        $query = parse_url($url, PHP_URL_QUERY);
643
        $ext = pathinfo(parse_url($url, PHP_URL_PATH), PATHINFO_EXTENSION);
644
645
        // Google Fonts hack
646
        if (Util\Str::endsWith($path, '/css') || Util\Str::endsWith($path, '/css2')) {
647
            $ext = 'css';
648
        }
649
650
        return Page::slugify(\sprintf('%s%s%s%s', $host, self::sanitize($path), $query ? "-$query" : '', $query && $ext ? ".$ext" : ''));
651
    }
652
653
    /**
654
     * Replaces some characters by '_'.
655
     */
656
    public static function sanitize(string $string): string
657
    {
658
        return str_replace(['<', '>', ':', '"', '\\', '|', '?', '*'], '_', $string);
659
    }
660
661
    /**
662
     * Compiles a SCSS.
663
     *
664
     * @throws RuntimeException
665
     */
666
    protected function doCompile(): self
667
    {
668
        // abort if not a SCSS file
669
        if ($this->data['ext'] != 'scss') {
670
            return $this;
671
        }
672
        $scssPhp = new Compiler();
673
        // import paths
674
        $importDir = [];
675
        $importDir[] = Util::joinPath($this->config->getStaticPath());
676
        $importDir[] = Util::joinPath($this->config->getAssetsPath());
677
        $scssDir = (array) $this->config->get('assets.compile.import');
678
        $themes = $this->config->getTheme() ?? [];
679
        foreach ($scssDir as $dir) {
680
            $importDir[] = Util::joinPath($this->config->getStaticPath(), $dir);
681
            $importDir[] = Util::joinPath($this->config->getAssetsPath(), $dir);
682
            $importDir[] = Util::joinPath(\dirname($this->data['file']), $dir);
683
            foreach ($themes as $theme) {
684
                $importDir[] = Util::joinPath($this->config->getThemeDirPath($theme, "static/$dir"));
685
                $importDir[] = Util::joinPath($this->config->getThemeDirPath($theme, "assets/$dir"));
686
            }
687
        }
688
        $scssPhp->setQuietDeps(true);
689
        $scssPhp->setImportPaths(array_unique($importDir));
690
        // adds source map
691
        if ($this->builder->isDebug() && $this->config->isEnabled('assets.compile.sourcemap')) {
692
            $importDir = [];
693
            $assetDir = (string) $this->config->get('assets.dir');
694
            $assetDirPos = strrpos($this->data['file'], DIRECTORY_SEPARATOR . $assetDir . DIRECTORY_SEPARATOR);
695
            $fileRelPath = substr($this->data['file'], $assetDirPos + 8);
696
            $filePath = Util::joinFile($this->config->getOutputPath(), $fileRelPath);
697
            $importDir[] = \dirname($filePath);
698
            foreach ($scssDir as $dir) {
699
                $importDir[] = Util::joinFile($this->config->getOutputPath(), $dir);
700
            }
701
            $scssPhp->setImportPaths(array_unique($importDir));
702
            $scssPhp->setSourceMap(Compiler::SOURCE_MAP_INLINE);
703
            $scssPhp->setSourceMapOptions([
704
                'sourceMapBasepath' => Util::joinPath($this->config->getOutputPath()),
705
                'sourceRoot'        => '/',
706
            ]);
707
        }
708
        // defines output style
709
        $outputStyles = ['expanded', 'compressed'];
710
        $outputStyle = strtolower((string) $this->config->get('assets.compile.style'));
711
        if (!\in_array($outputStyle, $outputStyles)) {
712
            throw new ConfigException(\sprintf('"%s" value must be "%s".', 'assets.compile.style', implode('" or "', $outputStyles)));
713
        }
714
        $scssPhp->setOutputStyle($outputStyle == 'compressed' ? OutputStyle::COMPRESSED : OutputStyle::EXPANDED);
715
        // set variables
716
        $variables = $this->config->get('assets.compile.variables');
717
        if (!empty($variables)) {
718
            $variables = array_map('ScssPhp\ScssPhp\ValueConverter::parseValue', $variables);
719
            $scssPhp->replaceVariables($variables);
720
        }
721
        // debug
722
        if ($this->builder->isDebug()) {
723
            $scssPhp->setQuietDeps(false);
724
            $this->builder->getLogger()->debug(\sprintf("SCSS compiler imported paths:\n%s", Util\Str::arrayToList(array_unique($importDir))));
725
        }
726
        // update data
727
        $this->data['path'] = preg_replace('/sass|scss/m', 'css', $this->data['path']);
728
        $this->data['ext'] = 'css';
729
        $this->data['type'] = 'text';
730
        $this->data['subtype'] = 'text/css';
731
        $this->data['content'] = $scssPhp->compileString($this->data['content'])->getCss();
732
        $this->data['size'] = \strlen($this->data['content']);
733
734
        $this->builder->getLogger()->debug(\sprintf('Asset compiled: "%s"', $this->data['path']));
735
736
        return $this;
737
    }
738
739
    /**
740
     * Minifying a CSS or a JS + cache.
741
     *
742
     * @throws RuntimeException
743
     */
744
    protected function doMinify(): self
745
    {
746
        // compile SCSS files
747
        if ($this->data['ext'] == 'scss') {
748
            $this->doCompile();
749
        }
750
        // abort if already minified
751
        if (substr($this->data['path'], -8) == '.min.css' || substr($this->data['path'], -7) == '.min.js') {
752
            return $this;
753
        }
754
        // abord if not a CSS or JS file
755
        if (!\in_array($this->data['ext'], ['css', 'js'])) {
756
            return $this;
757
        }
758
        // in debug mode: disable minify to preserve inline source map
759
        if ($this->builder->isDebug() && $this->config->isEnabled('assets.compile.sourcemap')) {
760
            return $this;
761
        }
762
        switch ($this->data['ext']) {
763
            case 'css':
764
                $minifier = new Minify\CSS($this->data['content']);
765
                break;
766
            case 'js':
767
                $minifier = new Minify\JS($this->data['content']);
768
                break;
769
            default:
770
                throw new RuntimeException(\sprintf('Not able to minify "%s".', $this->data['path']));
771
        }
772
        $this->data['content'] = $minifier->minify();
773
        $this->data['size'] = \strlen($this->data['content']);
774
775
        $this->builder->getLogger()->debug(\sprintf('Asset minified: "%s"', $this->data['path']));
776
777
        return $this;
778
    }
779
780
    /**
781
     * Add hash to the file name.
782
     */
783
    protected function doFingerprint(): self
784
    {
785
        $hash = hash('md5', $this->data['content']);
786
        $this->data['path'] = preg_replace(
787
            '/\.' . $this->data['ext'] . '$/m',
788
            ".$hash." . $this->data['ext'],
789
            $this->data['path']
790
        );
791
        $this->builder->getLogger()->debug(\sprintf('Asset fingerprinted: "%s"', $this->data['path']));
792
793
        return $this;
794
    }
795
796
    /**
797
     * Returns local file path and updated path, or throw an exception.
798
     * If $fallback path is set, it will be used if the remote file is not found.
799
     *
800
     * Try to locate the file in:
801
     *   (1. remote file)
802
     *   1. assets
803
     *   2. themes/<theme>/assets
804
     *   3. static
805
     *   4. themes/<theme>/static
806
     *
807
     * @throws RuntimeException
808
     */
809
    private function locateFile(string $path, ?string $fallback = null, ?string $userAgent = null): array
810
    {
811
        // remote file
812
        if (Util\File::isRemote($path)) {
813
            try {
814
                $content = $this->getRemoteFileContent($path, $userAgent);
815
                $path = self::buildPathFromUrl($path);
816
                $cache = new Cache($this->builder, 'assets/remote');
817
                if (!$cache->has($path)) {
818
                    $cache->set($path, [
819
                        'content' => $content,
820
                        'path'    => $path,
821
                    ], $this->config->get('cache.assets.remote.ttl'));
822
                }
823
                return [
824
                    'file' => $cache->getContentFilePathname($path),
825
                    'path' => $path,
826
                ];
827
            } catch (RuntimeException $e) {
828
                if (empty($fallback)) {
829
                    throw new RuntimeException($e->getMessage());
830
                }
831
                $path = $fallback;
832
            }
833
        }
834
835
        // checks in assets/
836
        $file = Util::joinFile($this->config->getAssetsPath(), $path);
837
        if (Util\File::getFS()->exists($file)) {
838
            return [
839
                'file' => $file,
840
                'path' => $path,
841
            ];
842
        }
843
844
        // checks in each themes/<theme>/assets/
845
        foreach ($this->config->getTheme() ?? [] as $theme) {
846
            $file = Util::joinFile($this->config->getThemeDirPath($theme, 'assets'), $path);
847
            if (Util\File::getFS()->exists($file)) {
848
                return [
849
                    'file' => $file,
850
                    'path' => $path,
851
                ];
852
            }
853
        }
854
855
        // checks in static/
856
        $file = Util::joinFile($this->config->getStaticPath(), $path);
857
        if (Util\File::getFS()->exists($file)) {
858
            return [
859
                'file' => $file,
860
                'path' => $path,
861
            ];
862
        }
863
864
        // checks in each themes/<theme>/static/
865
        foreach ($this->config->getTheme() ?? [] as $theme) {
866
            $file = Util::joinFile($this->config->getThemeDirPath($theme, 'static'), $path);
867
            if (Util\File::getFS()->exists($file)) {
868
                return [
869
                    'file' => $file,
870
                    'path' => $path,
871
                ];
872
            }
873
        }
874
875
        throw new RuntimeException(\sprintf('Can\'t locate file "%s".', $path));
876
    }
877
878
    /**
879
     * Try to get remote file content.
880
     * Returns file content or throw an exception.
881
     *
882
     * @throws RuntimeException
883
     */
884
    private function getRemoteFileContent(string $path, ?string $userAgent = null): string
885
    {
886
        if (!Util\File::isRemoteExists($path)) {
887
            throw new RuntimeException(\sprintf('Can\'t get remote file "%s".', $path));
888
        }
889
        if (false === $content = Util\File::fileGetContents($path, $userAgent)) {
890
            throw new RuntimeException(\sprintf('Can\'t get content of remote file "%s".', $path));
891
        }
892
        if (\strlen($content) <= 1) {
893
            throw new RuntimeException(\sprintf('Remote file "%s" is empty.', $path));
894
        }
895
896
        return $content;
897
    }
898
899
    /**
900
     * Optimizing $filepath image.
901
     * Returns the new file size.
902
     */
903
    private function optimize(string $filepath, string $path, int $quality): int
904
    {
905
        $message = \sprintf('Asset not optimized: "%s"', $path);
906
        $sizeBefore = filesize($filepath);
907
        Optimizer::create($quality)->optimize($filepath);
908
        $sizeAfter = filesize($filepath);
909
        if ($sizeAfter < $sizeBefore) {
910
            $message = \sprintf(
911
                'Asset optimized: "%s" (%s Ko -> %s Ko)',
912
                $path,
913
                ceil($sizeBefore / 1000),
914
                ceil($sizeAfter / 1000)
915
            );
916
        }
917
        $this->builder->getLogger()->debug($message);
918
919
        return $sizeAfter;
920
    }
921
922
    /**
923
     * Returns the width of an image/SVG.
924
     *
925
     * @throws RuntimeException
926
     */
927
    private function getWidth(): int
928
    {
929
        if ($this->data['type'] != 'image') {
930
            return 0;
931
        }
932
        if (Image::isSVG($this) && false !== $svg = Image::getSvgAttributes($this)) {
933
            return (int) $svg->width;
934
        }
935
        if (false === $size = $this->getImageSize()) {
936
            throw new RuntimeException(\sprintf('Not able to get width of "%s".', $this->data['path']));
937
        }
938
939
        return $size[0];
940
    }
941
942
    /**
943
     * Returns the height of an image/SVG.
944
     *
945
     * @throws RuntimeException
946
     */
947
    private function getHeight(): int
948
    {
949
        if ($this->data['type'] != 'image') {
950
            return 0;
951
        }
952
        if (Image::isSVG($this) && false !== $svg = Image::getSvgAttributes($this)) {
953
            return (int) $svg->height;
954
        }
955
        if (false === $size = $this->getImageSize()) {
956
            throw new RuntimeException(\sprintf('Not able to get height of "%s".', $this->data['path']));
957
        }
958
959
        return $size[1];
960
    }
961
962
    /**
963
     * Returns image size informations.
964
     *
965
     * @see https://www.php.net/manual/function.getimagesize.php
966
     *
967
     * @return array|false
968
     */
969
    private function getImageSize()
970
    {
971
        if (!$this->data['type'] == 'image') {
972
            return false;
973
        }
974
975
        try {
976
            if (false === $size = getimagesizefromstring($this->data['content'])) {
977
                return false;
978
            }
979
        } catch (\Exception $e) {
980
            throw new RuntimeException(\sprintf('Handling asset "%s" failed: "%s"', $this->data['path'], $e->getMessage()));
981
        }
982
983
        return $size;
984
    }
985
986
    /**
987
     * Builds CDN image URL.
988
     */
989
    private function buildImageCdnUrl(): string
990
    {
991
        return str_replace(
992
            [
993
                '%account%',
994
                '%image_url%',
995
                '%width%',
996
                '%quality%',
997
                '%format%',
998
            ],
999
            [
1000
                $this->config->get('assets.images.cdn.account') ?? '',
1001
                ltrim($this->data['url'] ?? (string) new Url($this->builder, $this->data['path'], ['canonical' => $this->config->get('assets.images.cdn.canonical') ?? true]), '/'),
1002
                $this->data['width'],
1003
                (int) $this->config->get('assets.images.quality'),
1004
                $this->data['ext'],
1005
            ],
1006
            (string) $this->config->get('assets.images.cdn.url')
1007
        );
1008
    }
1009
1010
    /**
1011
     * Checks if the asset is not missing and is typed as an image.
1012
     *
1013
     * @throws RuntimeException
1014
     */
1015
    private function checkImage(): void
1016
    {
1017
        if ($this->data['missing']) {
1018
            throw new RuntimeException(\sprintf('Not able to resize "%s": file not found.', $this->data['path']));
1019
        }
1020
        if ($this->data['type'] != 'image') {
1021
            throw new RuntimeException(\sprintf('Not able to resize "%s": not an image.', $this->data['path']));
1022
        }
1023
    }
1024
1025
    /**
1026
     * Remove redondant '/thumbnails/<width>/' in the path.
1027
     */
1028
    private function deduplicateThumbPath(string $path): string
1029
    {
1030
        // https://regex101.com/r/rDRWnL/1
1031
        $pattern = '/(' . self::IMAGE_THUMB . '\/\d+(x\d+){0,1})\/' . self::IMAGE_THUMB . '\/\d+\/(.*)/i';
1032
1033
        return preg_replace($pattern, '$1/$3', $path);
1034
    }
1035
}
1036