shopbuilder / app / Models / AssetBundler.php

AssetBundler.php in ShopBuilder – WooCommerce Builder For Elementor 3.3.0, 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	if ( ! wp_is_writable( $this->upload_dir ) ) {
91	global $wp_filesystem;
92
93	if ( ! function_exists( 'WP_Filesystem' ) ) {
94	require_once ABSPATH . 'wp-admin/includes/file.php';
95	}
96
97	if ( ! $wp_filesystem ) {
98	WP_Filesystem();
99	}
100
101	if ( $wp_filesystem ) {
102	$wp_filesystem->chmod( $this->upload_dir, FS_CHMOD_DIR );
103	}
104	}
105	}
106
107	/**
108	* Generates the full path to the cached JS file based on handle and file hash.
109	*
110	* @return string
111	*/
112	protected function get_cache_file_path() {
113	$this->filename = $this->generate_filename();
114
115	return $this->upload_dir . $this->filename;
116	}
117
118	/**
119	* Checks if the cached version of the JS file already exists.
120	*
121	* @return bool
122	*/
123	protected function is_cached() {
124	return file_exists( $this->get_cache_file_path() );
125	}
126
127	/**
128	* Builds the minified JS bundle if not cached and returns the URL.
129	*
130	* @return string
131	*/
132	public function build() {
133	$cache_path = $this->get_cache_file_path();
134
135	if ( ! $this->is_cached() ) {
136	if ( ! wp_is_writable( $this->upload_dir ) ) {
137	return '';
138	}
139
140	$minifier = ( 'css' === $this->type ) ? new CSS() : new JS();
141
142	foreach ( $this->source_files as $file ) {
143	$this->safely_add_file_to_minifier( $file, $minifier );
144	}
145
146	try {
147	$minifier->minify( $cache_path );
148	} catch ( \Exception $e ) {
149	error_log( '[ShopBuilder Minify] ' . $e->getMessage() ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
150
151	return '';
152	}
153	}
154
155	return $this->get_url();
156	}
157
158	/**
159	* Returns the URL to the cached JS bundle.
160	*
161	* @return string
162	*/
163	public function get_url() {
164	$upload = wp_upload_dir();
165
166	return trailingslashit( $upload['baseurl'] ) . "shopbuilder_uploads/cache/$this->type/" . $this->filename;
167	}
168
169	/**
170	* Clears all cached files related to this bundle handle.
171	*
172	* @return void
173	*/
174	public function clear_cache() {
175	foreach ( glob( $this->upload_dir . "$this->handle-*.min.$this->type" ) as $file ) {
176	if ( file_exists( $file ) ) {
177	wp_delete_file( $file );
178	}
179	}
180	}
181
182	/**
183	* Generates the filename for the minified JS file.
184	*
185	* @return string
186	*/
187	protected function generate_filename() {
188	$hash = md5( $this->handle . wp_json_encode( $this->source_files ) );
189
190	return "$this->handle-$hash.min.$this->type";
191	}
192
193	/**
194	* Rewrites relative font URLs in CSS to absolute plugin URLs.
195	*
196	* @param string $css The CSS content.
197	* @param string $base_path The base URL for resolving relative paths.
198	* @return string Modified CSS content with absolute font URLs.
199	*/
200	protected function fix_font_urls( string $css, string $base_path ) {
201	$base_path = trailingslashit( $base_path );
202
203	return preg_replace_callback(
204	'/url$(["\']?)(?!https?:\/\/\|\/)([^)]+?\.(?:eot\|woff2?\|ttf\|svg\|otf))(\?[^)]+)?\1$/i',
205	function ( $matches ) use ( $base_path ) {
206	$relative_path = $matches[2];
207	$query = isset( $matches[3] ) ? $matches[3] : '';
208	$absolute_url = $base_path . ltrim( $relative_path, './\\' );
209	return 'url("' . esc_url( $absolute_url . $query ) . '")';
210	},
211	$css
212	);
213	}
214
215	/**
216	* Safely add file contents or path to the minifier.
217	*
218	* @param string $file File path.
219	* @param object $minifier Minifier instance.
220	*
221	* @return void
222	*/
223	private function safely_add_file_to_minifier( $file, $minifier ) {
224	if ( ! is_string( $file ) ) {
225	return;
226	}
227
228	if ( ! is_readable( $file ) ) {
229	error_log( "[ShopBuilder Minify] Skipping unreadable file: $file" ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
230
231	return;
232	}
233
234	if ( 'css' === $this->type ) {
235	$content = @file_get_contents( $file ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged, WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
236
237	if ( false === $content ) {
238	error_log( "[ShopBuilder Minify] Failed to read file: $file" ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
239
240	return;
241	}
242
243	$base_url = dirname( plugins_url( '', $file ), 2 );
244	$processed = $this->fix_font_urls( $content, $base_url );
245
246	$minifier->add( $processed );
247	} else {
248	$minifier->add( $file );
249	}
250	}
251	}
252