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Jetpack – WP Security, Backup, Speed, & Growth v16.3-a.5
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jetpack / jetpack_vendor / automattic / jetpack-assets / src / class-assets.php

class-assets.php in Jetpack – WP Security, Backup, Speed, & Growth 16.3-a.5, at jetpack_vendor/automattic/jetpack-assets/src/class-assets.php

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1 <?php
2 /**
3 * Jetpack Assets package.
4 *
5 * @package automattic/jetpack-assets
6 */
7
8 namespace Automattic\Jetpack;
9
10 use Automattic\Jetpack\Assets\Semver;
11 use Automattic\Jetpack\Assets\Shared_Stores_Assets;
12 use Automattic\Jetpack\Constants as Jetpack_Constants;
13 use InvalidArgumentException;
14
15 /**
16 * Class Assets
17 */
18 class Assets {
19 /**
20 * Holds all the scripts handles that should be loaded in a deferred fashion.
21 *
22 * @var array
23 */
24 private $defer_script_handles = array();
25
26 /**
27 * The singleton instance of this class.
28 *
29 * @var Assets
30 */
31 protected static $instance;
32
33 /**
34 * The registered textdomain mappings.
35 *
36 * @var array `array( mapped_domain => array( string target_domain, string target_type, string semver ) )`.
37 */
38 private static $domain_map = array();
39
40 /**
41 * The registered package paths, by textdomain.
42 *
43 * Separate from `$domain_map` because the two answer different questions:
44 * the map says which domain a package's strings are translated under, while
45 * this says where the package's files live — the prefix WordPress hashes to
46 * name a JS translation file. A package whose textdomain is already its
47 * plugin's has nothing to alias but still needs the path.
48 *
49 * Note the entries are keyed by domain, not by script: `downloadI18n()`
50 * prepends a domain's prefix to every bundle path looked up under it. That
51 * is only ever one package's path, so a plugin must not both bundle a
52 * package whose textdomain is the plugin's own and load its own
53 * `wp-jp-i18n-loader` bundles under that same domain — the package's prefix
54 * would be applied to the plugin's catalogs too, and they would all 404. No
55 * plugin does both today. One that needs to should give the package a
56 * distinct textdomain, the way `jetpack-backup-pkg` and
57 * `jetpack-videopress-pkg` do.
58 *
59 * @var array `array( domain => array( string semver, string path_prefix ) )`.
60 */
61 private static $domain_paths = array();
62
63 /**
64 * Constructor.
65 *
66 * Static-only class, so nothing here.
67 */
68 private function __construct() {}
69
70 // ////////////////////
71 // region Async script loading
72
73 /**
74 * Get the singleton instance of the class.
75 *
76 * @return Assets
77 */
78 public static function instance() {
79 if ( ! isset( self::$instance ) ) {
80 self::$instance = new Assets();
81 }
82
83 return self::$instance;
84 }
85
86 /**
87 * A public method for adding the async script.
88 *
89 * @deprecated Since 2.1.0, the `strategy` feature should be used instead, with the "defer" setting.
90 *
91 * @param string $script_handle Script handle.
92 */
93 public static function add_async_script( $script_handle ) {
94 _deprecated_function( __METHOD__, '2.1.0' );
95
96 wp_script_add_data( $script_handle, 'strategy', 'defer' );
97 }
98
99 /**
100 * Add an async attribute to scripts that can be loaded deferred.
101 * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script
102 *
103 * @deprecated Since 2.1.0, the `strategy` feature should be used instead.
104 *
105 * @param string $tag The <script> tag for the enqueued script.
106 * @param string $handle The script's registered handle.
107 */
108 public function script_add_async( $tag, $handle ) {
109 _deprecated_function( __METHOD__, '2.1.0' );
110 if ( empty( $this->defer_script_handles ) ) {
111 return $tag;
112 }
113
114 if ( in_array( $handle, $this->defer_script_handles, true ) ) {
115 // phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedScript
116 return preg_replace( '/<script( [^>]*)? src=/i', '<script defer$1 src=', $tag );
117 }
118
119 return $tag;
120 }
121
122 /**
123 * A helper function that lets you enqueue scripts in an async fashion.
124 *
125 * @deprecated Since 2.1.0 - use the strategy feature instead.
126 *
127 * @param string $handle Name of the script. Should be unique.
128 * @param string $min_path Minimized script path.
129 * @param string $non_min_path Full Script path.
130 * @param array $deps Array of script dependencies.
131 * @param bool $ver The script version.
132 * @param bool $in_footer Should the script be included in the footer.
133 */
134 public static function enqueue_async_script( $handle, $min_path, $non_min_path, $deps = array(), $ver = false, $in_footer = true ) {
135 _deprecated_function( __METHOD__, '2.1.0' );
136 wp_enqueue_script( $handle, self::get_file_url_for_environment( $min_path, $non_min_path ), $deps, $ver, $in_footer );
137 wp_script_add_data( $handle, 'strategy', 'defer' );
138 }
139
140 // endregion .
141
142 // ////////////////////
143 // region Utils
144
145 /**
146 * Given a minified path, and a non-minified path, will return
147 * a minified or non-minified file URL based on whether SCRIPT_DEBUG is set and truthy.
148 *
149 * If $package_path is provided, then the minified or non-minified file URL will be generated
150 * relative to the root package directory.
151 *
152 * Both `$min_base` and `$non_min_base` can be either full URLs, or are expected to be relative to the
153 * root Jetpack directory.
154 *
155 * @param string $min_path minified path.
156 * @param string $non_min_path non-minified path.
157 * @param string $package_path Optional. A full path to a file inside a package directory
158 * The URL will be relative to its directory. Default empty.
159 * Typically this is done by passing __FILE__ as the argument.
160 *
161 * @return string The URL to the file
162 * @since 1.0.3
163 * @since-jetpack 5.6.0
164 */
165 public static function get_file_url_for_environment( $min_path, $non_min_path, $package_path = '' ) {
166 $path = ( Jetpack_Constants::is_defined( 'SCRIPT_DEBUG' ) && Jetpack_Constants::get_constant( 'SCRIPT_DEBUG' ) )
167 ? $non_min_path
168 : $min_path;
169
170 /*
171 * If the path is actually a full URL, keep that.
172 * We look for a host value, since enqueues are sometimes without a scheme.
173 */
174 $file_parts = wp_parse_url( $path );
175 if ( ! empty( $file_parts['host'] ) ) {
176 $url = $path;
177 } else {
178 $plugin_path = empty( $package_path ) ? Jetpack_Constants::get_constant( 'JETPACK__PLUGIN_FILE' ) : $package_path;
179
180 $url = plugins_url( $path, $plugin_path );
181 }
182
183 /**
184 * Filters the URL for a file passed through the get_file_url_for_environment function.
185 *
186 * @since 1.0.3
187 *
188 * @package assets
189 *
190 * @param string $url The URL to the file.
191 * @param string $min_path The minified path.
192 * @param string $non_min_path The non-minified path.
193 */
194 return apply_filters( 'jetpack_get_file_for_environment', $url, $min_path, $non_min_path );
195 }
196
197 /**
198 * Passes an array of URLs to wp_resource_hints.
199 *
200 * @since 1.5.0
201 *
202 * @param string|array $urls URLs to hint.
203 * @param string $type One of the supported resource types: dns-prefetch (default), preconnect, prefetch, or prerender.
204 */
205 public static function add_resource_hint( $urls, $type = 'dns-prefetch' ) {
206 add_filter(
207 'wp_resource_hints',
208 function ( $hints, $resource_type ) use ( $urls, $type ) {
209 if ( $resource_type === $type ) {
210 // Type casting to array required since the function accepts a single string.
211 foreach ( (array) $urls as $url ) {
212 $hints[] = $url;
213 }
214 }
215 return $hints;
216 },
217 10,
218 2
219 );
220 }
221
222 /**
223 * Serve a WordPress.com static resource via a randomized wp.com subdomain.
224 *
225 * @since 1.9.0
226 *
227 * @param string $url WordPress.com static resource URL.
228 *
229 * @return string $url
230 */
231 public static function staticize_subdomain( $url ) {
232 // Extract hostname from URL.
233 $host = wp_parse_url( $url, PHP_URL_HOST );
234
235 // Explode hostname on '.'.
236 $exploded_host = explode( '.', $host );
237
238 // Retrieve the name and TLD.
239 if ( count( $exploded_host ) > 1 ) {
240 $name = $exploded_host[ count( $exploded_host ) - 2 ];
241 $tld = $exploded_host[ count( $exploded_host ) - 1 ];
242 // Rebuild domain excluding subdomains.
243 $domain = $name . '.' . $tld;
244 } else {
245 $domain = $host;
246 }
247 // Array of Automattic domains.
248 $domains_allowed = array( 'wordpress.com', 'wp.com' );
249
250 // Return $url if not an Automattic domain.
251 if ( ! in_array( $domain, $domains_allowed, true ) ) {
252 return $url;
253 }
254
255 if ( \is_ssl() ) {
256 return preg_replace( '|https?://[^/]++/|', 'https://s-ssl.wordpress.com/', $url );
257 }
258
259 /*
260 * Generate a random subdomain id by taking the modulus of the crc32 value of the URL.
261 * Valid values are 0, 1, and 2.
262 */
263 $static_counter = abs( crc32( basename( $url ) ) % 3 );
264
265 return preg_replace( '|://[^/]+?/|', "://s$static_counter.wp.com/", $url );
266 }
267
268 /**
269 * Resolve '.' and '..' components in a path or URL.
270 *
271 * @since 1.12.0
272 * @param string $path Path or URL.
273 * @return string Normalized path or URL.
274 */
275 public static function normalize_path( $path ) {
276 $parts = wp_parse_url( $path );
277 if ( ! isset( $parts['path'] ) ) {
278 return $path;
279 }
280
281 $ret = '';
282 $ret .= isset( $parts['scheme'] ) ? $parts['scheme'] . '://' : '';
283 if ( isset( $parts['user'] ) || isset( $parts['pass'] ) ) {
284 $ret .= $parts['user'] ?? '';
285 $ret .= isset( $parts['pass'] ) ? ':' . $parts['pass'] : '';
286 $ret .= '@';
287 }
288 $ret .= $parts['host'] ?? '';
289 $ret .= isset( $parts['port'] ) ? ':' . $parts['port'] : '';
290
291 $pp = explode( '/', $parts['path'] );
292 if ( '' === $pp[0] ) {
293 $ret .= '/';
294 array_shift( $pp );
295 }
296 $i = 0;
297 while ( $i < count( $pp ) ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found
298 if ( '' === $pp[ $i ] || '.' === $pp[ $i ] || 0 === $i && '..' === $pp[ $i ] ) {
299 array_splice( $pp, $i, 1 );
300 } elseif ( '..' === $pp[ $i ] ) {
301 array_splice( $pp, --$i, 2 );
302 } else {
303 ++$i;
304 }
305 }
306 $ret .= implode( '/', $pp );
307
308 $ret .= isset( $parts['query'] ) ? '?' . $parts['query'] : '';
309 $ret .= isset( $parts['fragment'] ) ? '#' . $parts['fragment'] : '';
310
311 return $ret;
312 }
313
314 // endregion .
315
316 // ////////////////////
317 // region Webpack-built script registration
318
319 /**
320 * Register a Webpack-built script.
321 *
322 * Our Webpack-built scripts tend to need a bunch of boilerplate:
323 * - A call to `Assets::get_file_url_for_environment()` for possible debugging.
324 * - A call to `wp_register_style()` for extracted CSS, possibly with detection of RTL.
325 * - Loading of dependencies and version provided by `@wordpress/dependency-extraction-webpack-plugin`.
326 * - Avoiding WPCom's broken minifier.
327 *
328 * This wrapper handles all of that.
329 *
330 * @since 1.12.0
331 * @since 2.1.0 Add a new `strategy` option to leverage WP >= 6.3 script strategy feature. The `async` option is deprecated.
332 * @param string $handle Name of the script. Should be unique across both scripts and styles.
333 * @param string $path Minimized script path.
334 * @param string $relative_to File that `$path` is relative to. Pass `__FILE__`.
335 * @param array $options Additional options:
336 * - `asset_path`: (string|null) `.asset.php` to load. Default is to base it on `$path`.
337 * - `async`: (bool) Set true to register the script as deferred, like `Assets::enqueue_async_script()`. Deprecated in favor of `strategy`.
338 * - `css_dependencies`: (string[]) Additional style dependencies to queue.
339 * - `css_path`: (string|null) `.css` to load. Default is to base it on `$path`.
340 * - `dependencies`: (string[]) Additional script dependencies to queue.
341 * - `enqueue`: (bool) Set true to enqueue the script immediately.
342 * - `in_footer`: (bool) Set true to register script for the footer.
343 * - `media`: (string) Media for the css file. Default 'all'.
344 * - `minify`: (bool|null) Set true to pass `minify=true` in the query string, or `null` to suppress the normal `minify=false`.
345 * - `nonmin_path`: (string) Non-minified script path.
346 * - `strategy`: (string) Specify a script strategy to use, eg. `defer` or `async`. Default is `""`.
347 * - `textdomain`: (string) Text domain for the script. Required if the script depends on wp-i18n.
348 * - `version`: (string) Override the version from the `asset_path` file.
349 * @phan-param array{asset_path?:?string,async?:bool,css_dependencies?:string[],css_path?:?string,dependencies?:string[],enqueue?:bool,in_footer?:bool,media?:string,minify?:?bool,nonmin_path?:string,strategy?:string,textdomain?:string,version?:string} $options
350 * @throws \InvalidArgumentException If arguments are invalid.
351 */
352 public static function register_script( $handle, $path, $relative_to, array $options = array() ) {
353 if ( substr( $path, -3 ) !== '.js' ) {
354 throw new \InvalidArgumentException( '$path must end in ".js"' );
355 }
356
357 if ( isset( $options['async'] ) ) {
358 _deprecated_argument( __METHOD__, '2.1.0', 'The `async` option is deprecated in favor of `strategy`' );
359 }
360
361 $dir = dirname( $relative_to );
362 $base = substr( $path, 0, -3 );
363 $options += array(
364 'asset_path' => "$base.asset.php",
365 'async' => false,
366 'css_dependencies' => array(),
367 'css_path' => "$base.css",
368 'dependencies' => array(),
369 'enqueue' => false,
370 'in_footer' => false,
371 'media' => 'all',
372 'minify' => false,
373 'strategy' => '',
374 'textdomain' => null,
375 );
376 '@phan-var array{asset_path:?string,async:bool,css_dependencies:string[],css_path:?string,dependencies:string[],enqueue:bool,in_footer:bool,media:string,minify:?bool,nonmin_path?:string,strategy:string,textdomain:string,version?:string} $options'; // Phan gets confused by the array addition.
377
378 if ( is_string( $options['css_path'] ) && $options['css_path'] !== '' && substr( $options['css_path'], -4 ) !== '.css' ) {
379 throw new \InvalidArgumentException( '$options[\'css_path\'] must end in ".css"' );
380 }
381
382 if ( isset( $options['nonmin_path'] ) ) {
383 $url = self::get_file_url_for_environment( $path, $options['nonmin_path'], $relative_to );
384 } else {
385 $url = plugins_url( $path, $relative_to );
386 }
387 $url = self::normalize_path( $url );
388 if ( null !== $options['minify'] ) {
389 $url = add_query_arg( 'minify', $options['minify'] ? 'true' : 'false', $url );
390 }
391
392 if ( $options['asset_path'] && file_exists( "$dir/{$options['asset_path']}" ) ) {
393 $asset = require "$dir/{$options['asset_path']}"; // phpcs:ignore WordPressVIPMinimum.Files.IncludingFile.NotAbsolutePath
394 $options['dependencies'] = array_merge( $asset['dependencies'], $options['dependencies'] );
395 $options['css_dependencies'] = array_merge(
396 array_filter(
397 $asset['dependencies'],
398 function ( $d ) {
399 return wp_style_is( $d, 'registered' );
400 }
401 ),
402 $options['css_dependencies']
403 );
404 $ver = $options['version'] ?? $asset['version'];
405 } else {
406 // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
407 $ver = $options['version'] ?? @filemtime( "$dir/$path" );
408 }
409
410 if ( $options['async'] && '' === $options['strategy'] ) { // Handle the deprecated `async` option
411 $options['strategy'] = 'defer';
412 }
413 wp_register_script(
414 $handle,
415 $url,
416 $options['dependencies'],
417 $ver,
418 array(
419 'in_footer' => $options['in_footer'],
420 'strategy' => $options['strategy'],
421 )
422 );
423
424 if ( $options['textdomain'] ) {
425 // phpcs:ignore Jetpack.Functions.I18n.DomainNotLiteral
426 wp_set_script_translations( $handle, $options['textdomain'] );
427 } elseif ( in_array( 'wp-i18n', $options['dependencies'], true ) ) {
428 _doing_it_wrong(
429 __METHOD__,
430 /* translators: %s is the script handle. */
431 esc_html( sprintf( __( 'Script "%s" depends on wp-i18n but does not specify "textdomain"', 'jetpack-assets' ), $handle ) ),
432 ''
433 );
434 }
435
436 if ( is_string( $options['css_path'] ) && $options['css_path'] !== '' && file_exists( "$dir/{$options['css_path']}" ) ) {
437 $csspath = $options['css_path'];
438 if ( is_rtl() ) {
439 $rtlcsspath = substr( $csspath, 0, -4 ) . '.rtl.css';
440 if ( file_exists( "$dir/$rtlcsspath" ) ) {
441 $csspath = $rtlcsspath;
442 }
443 }
444
445 $url = self::normalize_path( plugins_url( $csspath, $relative_to ) );
446 if ( null !== $options['minify'] ) {
447 $url = add_query_arg( 'minify', $options['minify'] ? 'true' : 'false', $url );
448 }
449 wp_register_style( $handle, $url, $options['css_dependencies'], $ver, $options['media'] );
450 wp_script_add_data( $handle, 'Jetpack::Assets::hascss', true );
451 } else {
452 wp_script_add_data( $handle, 'Jetpack::Assets::hascss', false );
453 }
454
455 if ( $options['enqueue'] ) {
456 self::enqueue_script( $handle );
457 }
458 }
459
460 /**
461 * Enqueue a script registered with `Assets::register_script`.
462 *
463 * @since 1.12.0
464 * @param string $handle Name of the script. Should be unique across both scripts and styles.
465 */
466 public static function enqueue_script( $handle ) {
467 wp_enqueue_script( $handle );
468 if ( wp_scripts()->get_data( $handle, 'Jetpack::Assets::hascss' ) ) {
469 wp_enqueue_style( $handle );
470 }
471 }
472
473 /**
474 * Re-hook the bootstraps an older copy's `actions.php` did not know about. See JETPACK-2649.
475 *
476 * Static callables only: `add_action()` dedupes those, but closures and object callables would
477 * register twice. Callers must run before `wp_loaded`.
478 *
479 * @access private
480 * @since 5.0.5
481 */
482 public static function ensure_package_bootstrap() {
483 Shared_Stores_Assets::configure();
484 }
485
486 /**
487 * 'wp_default_scripts' action handler.
488 *
489 * This registers the `wp-jp-i18n-loader` script for use by Webpack bundles built with
490 * `@automattic/i18n-loader-webpack-plugin`.
491 *
492 * @since 1.14.0
493 * @param \WP_Scripts $wp_scripts WP_Scripts instance.
494 */
495 public static function wp_default_scripts_hook( $wp_scripts ) {
496 $data = array(
497 'baseUrl' => false,
498 'locale' => determine_locale(),
499 'domainMap' => array(),
500 'domainPaths' => array(),
501 );
502
503 $lang_dir = Jetpack_Constants::get_constant( 'WP_LANG_DIR' );
504 $content_dir = Jetpack_Constants::get_constant( 'WP_CONTENT_DIR' );
505 $abspath = Jetpack_Constants::get_constant( 'ABSPATH' );
506
507 // Note: str_starts_with() is not used here, as wp-includes/compat.php may not be loaded at this point.
508 if ( strpos( $lang_dir, $content_dir ) === 0 ) {
509 $data['baseUrl'] = content_url( substr( trailingslashit( $lang_dir ), strlen( trailingslashit( $content_dir ) ) ) );
510 } elseif ( strpos( $lang_dir, $abspath ) === 0 ) {
511 $data['baseUrl'] = site_url( substr( trailingslashit( $lang_dir ), strlen( untrailingslashit( $abspath ) ) ) );
512 }
513
514 foreach ( self::$domain_map as $from => list( $to, $type ) ) {
515 $data['domainMap'][ $from ] = ( 'core' === $type ? '' : "{$type}/" ) . $to;
516 }
517 foreach ( self::$domain_paths as $from => list( , $path ) ) {
518 if ( '' !== $path ) {
519 $data['domainPaths'][ $from ] = trailingslashit( $path );
520 }
521 }
522
523 /**
524 * Filters the i18n state data for use by Webpack bundles built with
525 * `@automattic/i18n-loader-webpack-plugin`.
526 *
527 * @since 1.14.0
528 * @package assets
529 * @param array $data The state data to generate. Expected fields are:
530 * - `baseUrl`: (string|false) The URL to the languages directory. False if no URL could be determined.
531 * - `locale`: (string) The locale for the page.
532 * - `domainMap`: (string[]) A mapping from Composer package textdomains to the corresponding
533 * `plugins/textdomain` or `themes/textdomain` (or core `textdomain`, but that's unlikely).
534 * - `domainPaths`: (string[]) A mapping from Composer package textdomains to the corresponding package
535 * paths.
536 */
537 $data = apply_filters( 'jetpack_i18n_state', $data );
538
539 // Can't use self::register_script(), this action is called too early.
540 if ( file_exists( __DIR__ . '/../build/i18n-loader.asset.php' ) ) {
541 $path = '../build/i18n-loader.js';
542 $asset = require __DIR__ . '/../build/i18n-loader.asset.php';
543 } else {
544 $path = 'js/i18n-loader.js';
545 $asset = array(
546 'dependencies' => array( 'wp-i18n' ),
547 'version' => filemtime( __DIR__ . "/$path" ),
548 );
549 }
550 $url = self::normalize_path( plugins_url( $path, __FILE__ ) );
551 $url = add_query_arg( 'minify', 'true', $url );
552
553 $handle = 'wp-jp-i18n-loader';
554
555 $wp_scripts->add( $handle, $url, $asset['dependencies'], $asset['version'] );
556
557 // Ensure the script is loaded in the footer and deferred.
558 $wp_scripts->add_data( $handle, 'group', 1 );
559
560 if ( ! is_array( $data ) ||
561 ! isset( $data['baseUrl'] ) || ! ( is_string( $data['baseUrl'] ) || false === $data['baseUrl'] ) ||
562 ! isset( $data['locale'] ) || ! is_string( $data['locale'] ) ||
563 ! isset( $data['domainMap'] ) || ! is_array( $data['domainMap'] ) ||
564 ! isset( $data['domainPaths'] ) || ! is_array( $data['domainPaths'] )
565 ) {
566 $wp_scripts->add_inline_script( $handle, 'console.warn( "I18n state deleted by jetpack_i18n_state hook" );' );
567 } elseif ( ! $data['baseUrl'] ) {
568 $wp_scripts->add_inline_script( $handle, 'console.warn( "Failed to determine languages base URL. Is WP_LANG_DIR in the WordPress root?" );' );
569 } else {
570 $data['domainMap'] = (object) $data['domainMap']; // Ensure it becomes a json object.
571 $data['domainPaths'] = (object) $data['domainPaths']; // Ensure it becomes a json object.
572 $wp_scripts->add_inline_script( $handle, 'wp.jpI18nLoader.state = ' . wp_json_encode( $data, JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP ) . ';' );
573 }
574
575 // Deprecated state module: Depend on wp-i18n to ensure global `wp` exists and because anything needing this will need that too.
576 $wp_scripts->add( 'wp-jp-i18n-state', false, array( 'wp-deprecated', $handle ) );
577 $wp_scripts->add_inline_script( 'wp-jp-i18n-state', 'wp.deprecated( "wp-jp-i18n-state", { alternative: "wp-jp-i18n-loader" } );' );
578 $wp_scripts->add_inline_script( 'wp-jp-i18n-state', 'wp.jpI18nState = wp.jpI18nLoader.state;' );
579 }
580
581 // endregion .
582
583 // ////////////////////
584 // region Textdomain aliasing
585
586 /**
587 * Register a textdomain alias.
588 *
589 * Composer packages included in plugins will likely not use the textdomain of the plugin, while
590 * WordPress's i18n infrastructure will include the translations in the plugin's domain. This
591 * allows for mapping the package's domain to the plugin's.
592 *
593 * Since multiple plugins may use the same package, we include the package's version here so
594 * as to choose the most recent translations (which are most likely to match the package
595 * selected by jetpack-autoloader).
596 *
597 * @since 1.15.0
598 * @param string $from Domain to alias.
599 * @param string $to Domain to alias it to.
600 * @param string $totype What is the target of the alias: 'plugins', 'themes', or 'core'.
601 * @param string $ver Version of the `$from` domain.
602 * @param string $path Path to prepend when lazy-loading from JavaScript.
603 * @throws InvalidArgumentException If arguments are invalid.
604 */
605 public static function alias_textdomain( $from, $to, $totype, $ver, $path = '' ) {
606 if ( ! in_array( $totype, array( 'plugins', 'themes', 'core' ), true ) ) {
607 throw new InvalidArgumentException( 'Type must be "plugins", "themes", or "core"' );
608 }
609
610 if (
611 did_action( 'wp_default_scripts' ) &&
612 // Don't complain during plugin activation.
613 ! defined( 'WP_SANDBOX_SCRAPING' )
614 ) {
615 _doing_it_wrong(
616 __METHOD__,
617 sprintf(
618 /* translators: 1: wp_default_scripts. 2: Name of the domain being aliased. */
619 esc_html__( 'Textdomain aliases should be registered before the %1$s hook. This notice was triggered by the %2$s domain.', 'jetpack-assets' ),
620 '<code>wp_default_scripts</code>',
621 '<code>' . esc_html( $from ) . '</code>'
622 ),
623 ''
624 );
625 }
626
627 // Where the package lives is needed for JS translation files whether or
628 // not its domain is aliased, so it is recorded before the self-alias
629 // check below.
630 if (
631 empty( self::$domain_paths[ $from ] ) ||
632 Semver::compare( $ver, self::$domain_paths[ $from ][0] ) > 0
633 ) {
634 self::$domain_paths[ $from ] = array( $ver, $path );
635 }
636
637 // A self-alias would make filter_gettext() re-translate into the same
638 // domain, recursing infinitely on any untranslated string (a package
639 // textdomain can collide with its containing plugin's slug).
640 if ( $from === $to ) {
641 return;
642 }
643
644 if ( empty( self::$domain_map[ $from ] ) ) {
645 self::init_domain_map_hooks( $from, array() === self::$domain_map );
646 self::$domain_map[ $from ] = array( $to, $totype, $ver );
647 } elseif ( Semver::compare( $ver, self::$domain_map[ $from ][2] ) > 0 ) {
648 self::$domain_map[ $from ] = array( $to, $totype, $ver );
649 }
650 }
651
652 /**
653 * Register textdomain aliases from a mapping file.
654 *
655 * The mapping file is simply a PHP file that returns an array
656 * with the following properties:
657 * - 'domain': String, `$to`
658 * - 'type': String, `$totype`
659 * - 'packages': Array, mapping `$from` to `array( 'path' => $path, 'ver' => $ver )` (or to the string `$ver` for back compat).
660 * - 'paths': Array, same shape, for packages whose textdomain is already
661 * `$to`. Those must not be aliased — that would recurse — but their
662 * paths are still needed to locate their JavaScript translations.
663 *
664 * @since 1.15.0
665 * @param string $file Mapping file.
666 */
667 public static function alias_textdomains_from_file( $file ) {
668 $data = require $file;
669 foreach ( $data['packages'] as $from => $fromdata ) {
670 if ( ! is_array( $fromdata ) ) {
671 $fromdata = array(
672 'path' => '',
673 'ver' => $fromdata,
674 );
675 }
676 self::alias_textdomain( $from, $data['domain'], $data['type'], $fromdata['ver'], $fromdata['path'] );
677 }
678 // Aliasing a domain to itself is a no-op that `alias_textdomain()`
679 // declines, leaving just the path registration these entries are for.
680 foreach ( $data['paths'] ?? array() as $from => $fromdata ) {
681 self::alias_textdomain( $from, $from, $data['type'], $fromdata['ver'], $fromdata['path'] );
682 }
683 }
684
685 /**
686 * Register the hooks for textdomain aliasing.
687 *
688 * @param string $domain Domain to alias.
689 * @param bool $firstcall If this is the first call.
690 */
691 private static function init_domain_map_hooks( $domain, $firstcall ) {
692 // If WordPress's plugin API is available already, use it. If not,
693 // drop data into `$wp_filter` for `WP_Hook::build_preinitialized_hooks()`.
694 if ( function_exists( 'add_filter' ) ) {
695 $add_filter = 'add_filter';
696 } else {
697 $add_filter = function ( $hook_name, $callback, $priority = 10, $accepted_args = 1 ) {
698 global $wp_filter;
699 // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
700 $wp_filter[ $hook_name ][ $priority ][] = array(
701 'accepted_args' => $accepted_args,
702 'function' => $callback,
703 );
704 };
705 }
706
707 $add_filter( "gettext_{$domain}", array( self::class, 'filter_gettext' ), 10, 3 );
708 $add_filter( "ngettext_{$domain}", array( self::class, 'filter_ngettext' ), 10, 5 );
709 $add_filter( "gettext_with_context_{$domain}", array( self::class, 'filter_gettext_with_context' ), 10, 4 );
710 $add_filter( "ngettext_with_context_{$domain}", array( self::class, 'filter_ngettext_with_context' ), 10, 6 );
711 if ( $firstcall ) {
712 $add_filter( 'load_script_translation_file', array( self::class, 'filter_load_script_translation_file' ), 10, 3 );
713 }
714 }
715
716 /**
717 * Filter for `gettext`.
718 *
719 * @since 1.15.0
720 * @param string $translation Translated text.
721 * @param string $text Text to translate.
722 * @param string $domain Text domain.
723 * @return string Translated text.
724 */
725 public static function filter_gettext( $translation, $text, $domain ) {
726 if ( $translation === $text ) {
727 // phpcs:ignore WordPress.WP.I18n -- This is a filter hook to map the text domains from our Composer packages to the domain for a containing plugin. See https://wp.me/p2gHKz-oRh#problem-6-text-domains-in-composer-packages
728 $newtext = __( $text, self::$domain_map[ $domain ][0] );
729 if ( $newtext !== $text ) {
730 return $newtext;
731 }
732 }
733 return $translation;
734 }
735
736 /**
737 * Filter for `ngettext`.
738 *
739 * @since 1.15.0
740 * @param string $translation Translated text.
741 * @param string $single The text to be used if the number is singular.
742 * @param string $plural The text to be used if the number is plural.
743 * @param int $number The number to compare against to use either the singular or plural form.
744 * @param string $domain Text domain.
745 * @return string Translated text.
746 */
747 public static function filter_ngettext( $translation, $single, $plural, $number, $domain ) {
748 if ( $translation === $single || $translation === $plural ) {
749 // phpcs:ignore WordPress.WP.I18n -- This is a filter hook to map the text domains from our Composer packages to the domain for a containing plugin. See https://wp.me/p2gHKz-oRh#problem-6-text-domains-in-composer-packages
750 $translation = _n( $single, $plural, $number, self::$domain_map[ $domain ][0] );
751 }
752 return $translation;
753 }
754
755 /**
756 * Filter for `gettext_with_context`.
757 *
758 * @since 1.15.0
759 * @param string $translation Translated text.
760 * @param string $text Text to translate.
761 * @param string $context Context information for the translators.
762 * @param string $domain Text domain.
763 * @return string Translated text.
764 */
765 public static function filter_gettext_with_context( $translation, $text, $context, $domain ) {
766 if ( $translation === $text ) {
767 // phpcs:ignore WordPress.WP.I18n -- This is a filter hook to map the text domains from our Composer packages to the domain for a containing plugin. See https://wp.me/p2gHKz-oRh#problem-6-text-domains-in-composer-packages
768 $translation = _x( $text, $context, self::$domain_map[ $domain ][0] );
769 }
770 return $translation;
771 }
772
773 /**
774 * Filter for `ngettext_with_context`.
775 *
776 * @since 1.15.0
777 * @param string $translation Translated text.
778 * @param string $single The text to be used if the number is singular.
779 * @param string $plural The text to be used if the number is plural.
780 * @param int $number The number to compare against to use either the singular or plural form.
781 * @param string $context Context information for the translators.
782 * @param string $domain Text domain.
783 * @return string Translated text.
784 */
785 public static function filter_ngettext_with_context( $translation, $single, $plural, $number, $context, $domain ) {
786 if ( $translation === $single || $translation === $plural ) {
787 // phpcs:ignore WordPress.WP.I18n -- This is a filter hook to map the text domains from our Composer packages to the domain for a containing plugin. See https://wp.me/p2gHKz-oRh#problem-6-text-domains-in-composer-packages
788 $translation = _nx( $single, $plural, $number, $context, self::$domain_map[ $domain ][0] );
789 }
790 return $translation;
791 }
792
793 /**
794 * Filter for `load_script_translation_file`.
795 *
796 * @since 1.15.0
797 * @param string|false $file Path to the translation file to load. False if there isn't one.
798 * @param string $handle Name of the script to register a translation domain to.
799 * @param string $domain The text domain.
800 */
801 public static function filter_load_script_translation_file( $file, $handle, $domain ) {
802 if ( false !== $file && isset( self::$domain_map[ $domain ] ) && ! is_readable( $file ) ) {
803 // Determine the part of the filename after the domain.
804 $suffix = basename( $file );
805 $l = strlen( $domain );
806 if ( substr( $suffix, 0, $l ) !== $domain || '-' !== $suffix[ $l ] ) {
807 return $file;
808 }
809 $suffix = substr( $suffix, $l );
810 $lang_dir = Jetpack_Constants::get_constant( 'WP_LANG_DIR' );
811
812 // Look for replacement files.
813 list( $newdomain, $type ) = self::$domain_map[ $domain ];
814 $newfile = $lang_dir . ( 'core' === $type ? '/' : "/{$type}/" ) . $newdomain . $suffix;
815 if ( is_readable( $newfile ) ) {
816 return $newfile;
817 }
818 }
819 return $file;
820 }
821
822 // endregion .
823 }
824
825 // Enable section folding in vim:
826 // vim: foldmarker=//\ region,//\ endregion foldmethod=marker
827 // .
828