shopbuilder / app / Models / AssetBundler.php

AssetBundler.php in ShopBuilder – WooCommerce Builder For Elementor 3.2.6, at app/Models/AssetBundler.php

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1	<?php
2	/**
3	* AssetBundler class.
4	*
5	* Dynamically merges and minifies CSS/JS files into a single versioned file stored in uploads.
6	*
7	* @package RadiusTheme\SB
8	* @since 1.0.0
9	*/
10
11	namespace RadiusTheme\SB\Models;
12
13	use MatthiasMullie\Minify\JS;
14	use MatthiasMullie\Minify\CSS;
15
16	// Do not allow directly accessing this file.
17	if ( ! defined( 'ABSPATH' ) ) {
18	exit( 'This script cannot be accessed directly.' );
19	}
20
21	/**
22	* AssetBundler class.
23	*/
24	class AssetBundler {
25	/**
26	* Handle for this bundle (used in filename/versioning).
27	*
28	* @var string
29	*/
30	protected $handle;
31
32	/**
33	* List of source file paths to bundle.
34	*
35	* @var array
36	*/
37	protected $source_files = [];
38
39	/**
40	* Directory where a minified bundle will be saved.
41	*
42	* @var string
43	*/
44	protected $upload_dir;
45
46	/**
47	* Generated filename of the minified JS file.
48	*
49	* @var string
50	*/
51	protected $filename;
52
53	/**
54	* File type (JS or CSS).
55	*
56	* @var string
57	*/
58	protected $type;
59
60	/**
61	* AssetBundler constructor.
62	*
63	* @param string $handle Unique identifier for the bundle.
64	* @param array $files List of absolute file paths to include in the bundle.
65	* @param string $type File type (JS or CSS).
66	*
67	* @return void
68	*/
69	public function __construct( string $handle, array $files, string $type = 'js' ) {
70	$this->handle = sanitize_key( $handle );
71	$this->source_files = $files;
72	$this->type = in_array( $type, [ 'js', 'css' ], true ) ? $type : 'js';
73
74	$upload = wp_upload_dir();
75	$this->upload_dir = trailingslashit( $upload['basedir'] ) . "shopbuilder_uploads/cache/$this->type/";
76
77	$this->maybe_create_cache_dir();
78	}
79
80	/**
81	* Creates the cache directory if it doesn't exist.
82	*
83	* @return void
84	*/
85	protected function maybe_create_cache_dir() {
86	if ( ! file_exists( $this->upload_dir ) ) {
87	wp_mkdir_p( $this->upload_dir );
88	}
89	}
90
91	/**
92	* Generates the full path to the cached JS file based on handle and file hash.
93	*
94	* @return string
95	*/
96	protected function get_cache_file_path() {
97	$this->filename = $this->generate_filename();
98
99	return $this->upload_dir . $this->filename;
100	}
101
102	/**
103	* Checks if the cached version of the JS file already exists.
104	*
105	* @return bool
106	*/
107	protected function is_cached() {
108	return file_exists( $this->get_cache_file_path() );
109	}
110
111	/**
112	* Builds the minified JS bundle if not cached and returns the URL.
113	*
114	* @return string
115	*/
116	public function build() {
117	$cache_path = $this->get_cache_file_path();
118
119	if ( ! $this->is_cached() ) {
120	$minifier = ( 'css' === $this->type ) ? new CSS() : new JS();
121
122	foreach ( $this->source_files as $file ) {
123	$this->safely_add_file_to_minifier( $file, $minifier );
124	}
125
126	$minifier->minify( $cache_path );
127	}
128
129	return $this->get_url();
130	}
131
132	/**
133	* Returns the URL to the cached JS bundle.
134	*
135	* @return string
136	*/
137	public function get_url() {
138	$upload = wp_upload_dir();
139
140	return trailingslashit( $upload['baseurl'] ) . "shopbuilder_uploads/cache/$this->type/" . $this->filename;
141	}
142
143	/**
144	* Clears all cached files related to this bundle handle.
145	*
146	* @return void
147	*/
148	public function clear_cache() {
149	foreach ( glob( $this->upload_dir . "$this->handle-*.min.$this->type" ) as $file ) {
150	if ( file_exists( $file ) ) {
151	wp_delete_file( $file );
152	}
153	}
154	}
155
156	/**
157	* Generates the filename for the minified JS file.
158	*
159	* @return string
160	*/
161	protected function generate_filename() {
162	$hash = md5( $this->handle . wp_json_encode( $this->source_files ) );
163
164	return "$this->handle-$hash.min.$this->type";
165	}
166
167	/**
168	* Rewrites relative font URLs in CSS to absolute plugin URLs.
169	*
170	* @param string $css The CSS content.
171	* @param string $base_path The base URL for resolving relative paths.
172	* @return string Modified CSS content with absolute font URLs.
173	*/
174	protected function fix_font_urls( string $css, string $base_path ) {
175	$base_path = trailingslashit( $base_path );
176
177	return preg_replace_callback(
178	'/url$(["\']?)(?!https?:\/\/\|\/)([^)]+?\.(?:eot\|woff2?\|ttf\|svg\|otf))(\?[^)]+)?\1$/i',
179	function ( $matches ) use ( $base_path ) {
180	$relative_path = $matches[2];
181	$query = isset( $matches[3] ) ? $matches[3] : '';
182	$absolute_url = $base_path . ltrim( $relative_path, './\\' );
183	return 'url("' . esc_url( $absolute_url . $query ) . '")';
184	},
185	$css
186	);
187	}
188
189	/**
190	* Safely add file contents or path to the minifier.
191	*
192	* @param string $file File path.
193	* @param object $minifier Minifier instance.
194	*
195	* @return void
196	*/
197	private function safely_add_file_to_minifier( $file, $minifier ) {
198	if ( ! is_string( $file ) ) {
199	return;
200	}
201
202	if ( ! is_readable( $file ) ) {
203	error_log( "[ShopBuilder Minify] Skipping unreadable file: $file" ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
204
205	return;
206	}
207
208	if ( 'css' === $this->type ) {
209	$content = @file_get_contents( $file ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged, WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
210
211	if ( false === $content ) {
212	error_log( "[ShopBuilder Minify] Failed to read file: $file" ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
213
214	return;
215	}
216
217	$base_url = dirname( plugins_url( '', $file ), 2 );
218	$processed = $this->fix_font_urls( $content, $base_url );
219
220	$minifier->add( $processed );
221	} else {
222	$minifier->add( $file );
223	}
224	}
225	}
226