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PHP Cross Reference of WordPress Trunk (Updated Daily) |
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1 <?php 2 /** 3 * WordPress Plugin Administration API 4 * 5 * @package WordPress 6 * @subpackage Administration 7 */ 8 9 /** 10 * Parses the plugin contents to retrieve plugin's metadata. 11 * 12 * All plugin headers must be on their own line. Plugin description must not have 13 * any newlines, otherwise only parts of the description will be displayed. 14 * The below is formatted for printing. 15 * 16 * /* 17 * Plugin Name: Name of the plugin. 18 * Plugin URI: The home page of the plugin. 19 * Description: Plugin description. 20 * Author: Plugin author's name. 21 * Author URI: Link to the author's website. 22 * Version: Plugin version. 23 * Text Domain: Optional. Unique identifier, should be same as the one used in 24 * load_plugin_textdomain(). 25 * Domain Path: Optional. Only useful if the translations are located in a 26 * folder above the plugin's base path. For example, if .mo files are 27 * located in the locale folder then Domain Path will be "/locale/" and 28 * must have the first slash. Defaults to the base folder the plugin is 29 * located in. 30 * Network: Optional. Specify "Network: true" to require that a plugin is activated 31 * across all sites in an installation. This will prevent a plugin from being 32 * activated on a single site when Multisite is enabled. 33 * Requires at least: Optional. Specify the minimum required WordPress version. 34 * Requires PHP: Optional. Specify the minimum required PHP version. 35 * * / # Remove the space to close comment. 36 * 37 * The first 8 KB of the file will be pulled in and if the plugin data is not 38 * within that first 8 KB, then the plugin author should correct their plugin 39 * and move the plugin data headers to the top. 40 * 41 * The plugin file is assumed to have permissions to allow for scripts to read 42 * the file. This is not checked however and the file is only opened for 43 * reading. 44 * 45 * @since 1.5.0 46 * @since 5.3.0 Added support for `Requires at least` and `Requires PHP` headers. 47 * @since 5.8.0 Added support for `Update URI` header. 48 * @since 6.5.0 Added support for `Requires Plugins` header. 49 * 50 * @param string $plugin_file Absolute path to the main plugin file. 51 * @param bool $markup Optional. If the returned data should have HTML markup applied. 52 * Default true. 53 * @param bool $translate Optional. If the returned data should be translated. Default true. 54 * @return array { 55 * Plugin data. Values will be empty if not supplied by the plugin. 56 * 57 * @type string $Name Name of the plugin. Should be unique. 58 * @type string $PluginURI Plugin URI. 59 * @type string $Version Plugin version. 60 * @type string $Description Plugin description. 61 * @type string $Author Plugin author's name. 62 * @type string $AuthorURI Plugin author's website address (if set). 63 * @type string $TextDomain Plugin textdomain. 64 * @type string $DomainPath Plugin's relative directory path to .mo files. 65 * @type bool $Network Whether the plugin can only be activated network-wide. 66 * @type string $RequiresWP Minimum required version of WordPress. 67 * @type string $RequiresPHP Minimum required version of PHP. 68 * @type string $UpdateURI ID of the plugin for update purposes, should be a URI. 69 * @type string $RequiresPlugins Comma separated list of dot org plugin slugs. 70 * @type string $Title Title of the plugin and link to the plugin's site (if set). 71 * @type string $AuthorName Plugin author's name. 72 * } 73 */ 74 function get_plugin_data( $plugin_file, $markup = true, $translate = true ) { 75 76 $default_headers = array( 77 'Name' => 'Plugin Name', 78 'PluginURI' => 'Plugin URI', 79 'Version' => 'Version', 80 'Description' => 'Description', 81 'Author' => 'Author', 82 'AuthorURI' => 'Author URI', 83 'TextDomain' => 'Text Domain', 84 'DomainPath' => 'Domain Path', 85 'Network' => 'Network', 86 'RequiresWP' => 'Requires at least', 87 'RequiresPHP' => 'Requires PHP', 88 'UpdateURI' => 'Update URI', 89 'RequiresPlugins' => 'Requires Plugins', 90 // Site Wide Only is deprecated in favor of Network. 91 '_sitewide' => 'Site Wide Only', 92 ); 93 94 $plugin_data = get_file_data( $plugin_file, $default_headers, 'plugin' ); 95 96 // Site Wide Only is the old header for Network. 97 if ( ! $plugin_data['Network'] && $plugin_data['_sitewide'] ) { 98 /* translators: 1: Site Wide Only: true, 2: Network: true */ 99 _deprecated_argument( __FUNCTION__, '3.0.0', sprintf( __( 'The %1$s plugin header is deprecated. Use %2$s instead.' ), '<code>Site Wide Only: true</code>', '<code>Network: true</code>' ) ); 100 $plugin_data['Network'] = $plugin_data['_sitewide']; 101 } 102 $plugin_data['Network'] = ( 'true' === strtolower( $plugin_data['Network'] ) ); 103 unset( $plugin_data['_sitewide'] ); 104 105 // If no text domain is defined fall back to the plugin slug. 106 if ( ! $plugin_data['TextDomain'] ) { 107 $plugin_slug = dirname( plugin_basename( $plugin_file ) ); 108 if ( '.' !== $plugin_slug && ! str_contains( $plugin_slug, '/' ) ) { 109 $plugin_data['TextDomain'] = $plugin_slug; 110 } 111 } 112 113 if ( $markup || $translate ) { 114 $plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate ); 115 } else { 116 $plugin_data['Title'] = $plugin_data['Name']; 117 $plugin_data['AuthorName'] = $plugin_data['Author']; 118 } 119 120 return $plugin_data; 121 } 122 123 /** 124 * Sanitizes plugin data, optionally adds markup, optionally translates. 125 * 126 * @since 2.7.0 127 * 128 * @see get_plugin_data() 129 * 130 * @access private 131 * 132 * @param string $plugin_file Path to the main plugin file. 133 * @param array $plugin_data An array of plugin data. See get_plugin_data(). 134 * @param bool $markup Optional. If the returned data should have HTML markup applied. 135 * Default true. 136 * @param bool $translate Optional. If the returned data should be translated. Default true. 137 * @return array Plugin data. Values will be empty if not supplied by the plugin. 138 * See get_plugin_data() for the list of possible values. 139 */ 140 function _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup = true, $translate = true ) { 141 142 // Sanitize the plugin filename to a WP_PLUGIN_DIR relative path. 143 $plugin_file = plugin_basename( $plugin_file ); 144 145 // Translate fields. 146 if ( $translate ) { 147 $textdomain = $plugin_data['TextDomain']; 148 if ( $textdomain ) { 149 if ( ! is_textdomain_loaded( $textdomain ) ) { 150 if ( $plugin_data['DomainPath'] ) { 151 load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) . $plugin_data['DomainPath'] ); 152 } else { 153 load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) ); 154 } 155 } 156 } elseif ( 'hello.php' === basename( $plugin_file ) ) { 157 $textdomain = 'default'; 158 } 159 if ( $textdomain ) { 160 foreach ( array( 'Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version' ) as $field ) { 161 if ( ! empty( $plugin_data[ $field ] ) ) { 162 // phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralDomain 163 $plugin_data[ $field ] = translate( $plugin_data[ $field ], $textdomain ); 164 } 165 } 166 } 167 } 168 169 // Sanitize fields. 170 $allowed_tags_in_links = array( 171 'abbr' => array( 'title' => true ), 172 'acronym' => array( 'title' => true ), 173 'code' => true, 174 'em' => true, 175 'strong' => true, 176 ); 177 178 $allowed_tags = $allowed_tags_in_links; 179 $allowed_tags['a'] = array( 180 'href' => true, 181 'title' => true, 182 ); 183 184 /* 185 * Name is marked up inside <a> tags. Don't allow these. 186 * Author is too, but some plugins have used <a> here (omitting Author URI). 187 */ 188 $plugin_data['Name'] = wp_kses( $plugin_data['Name'], $allowed_tags_in_links ); 189 $plugin_data['Author'] = wp_kses( $plugin_data['Author'], $allowed_tags ); 190 191 $plugin_data['Description'] = wp_kses( $plugin_data['Description'], $allowed_tags ); 192 $plugin_data['Version'] = wp_kses( $plugin_data['Version'], $allowed_tags ); 193 194 $plugin_data['PluginURI'] = esc_url( $plugin_data['PluginURI'] ); 195 $plugin_data['AuthorURI'] = esc_url( $plugin_data['AuthorURI'] ); 196 197 $plugin_data['Title'] = $plugin_data['Name']; 198 $plugin_data['AuthorName'] = $plugin_data['Author']; 199 200 // Apply markup. 201 if ( $markup ) { 202 if ( $plugin_data['PluginURI'] && $plugin_data['Name'] ) { 203 $plugin_data['Title'] = '<a href="' . $plugin_data['PluginURI'] . '">' . $plugin_data['Name'] . '</a>'; 204 } 205 206 if ( $plugin_data['AuthorURI'] && $plugin_data['Author'] ) { 207 $plugin_data['Author'] = '<a href="' . $plugin_data['AuthorURI'] . '">' . $plugin_data['Author'] . '</a>'; 208 } 209 210 $plugin_data['Description'] = wptexturize( $plugin_data['Description'] ); 211 212 if ( $plugin_data['Author'] ) { 213 $plugin_data['Description'] .= sprintf( 214 /* translators: %s: Plugin author. */ 215 ' <cite>' . __( 'By %s.' ) . '</cite>', 216 $plugin_data['Author'] 217 ); 218 } 219 } 220 221 return $plugin_data; 222 } 223 224 /** 225 * Gets a list of a plugin's files. 226 * 227 * @since 2.8.0 228 * 229 * @param string $plugin Path to the plugin file relative to the plugins directory. 230 * @return string[] Array of file names relative to the plugin root. 231 */ 232 function get_plugin_files( $plugin ) { 233 $plugin_file = WP_PLUGIN_DIR . '/' . $plugin; 234 $dir = dirname( $plugin_file ); 235 236 $plugin_files = array( plugin_basename( $plugin_file ) ); 237 238 if ( is_dir( $dir ) && WP_PLUGIN_DIR !== $dir ) { 239 240 /** 241 * Filters the array of excluded directories and files while scanning the folder. 242 * 243 * @since 4.9.0 244 * 245 * @param string[] $exclusions Array of excluded directories and files. 246 */ 247 $exclusions = (array) apply_filters( 'plugin_files_exclusions', array( 'CVS', 'node_modules', 'vendor', 'bower_components' ) ); 248 249 $list_files = list_files( $dir, 100, $exclusions ); 250 $list_files = array_map( 'plugin_basename', $list_files ); 251 252 $plugin_files = array_merge( $plugin_files, $list_files ); 253 $plugin_files = array_values( array_unique( $plugin_files ) ); 254 } 255 256 return $plugin_files; 257 } 258 259 /** 260 * Checks the plugins directory and retrieve all plugin files with plugin data. 261 * 262 * WordPress only supports plugin files in the base plugins directory 263 * (wp-content/plugins) and in one directory above the plugins directory 264 * (wp-content/plugins/my-plugin). The file it looks for has the plugin data 265 * and must be found in those two locations. It is recommended to keep your 266 * plugin files in their own directories. 267 * 268 * The file with the plugin data is the file that will be included and therefore 269 * needs to have the main execution for the plugin. This does not mean 270 * everything must be contained in the file and it is recommended that the file 271 * be split for maintainability. Keep everything in one file for extreme 272 * optimization purposes. 273 * 274 * @since 1.5.0 275 * 276 * @param string $plugin_folder Optional. Relative path to single plugin folder. 277 * @return array[] Array of arrays of plugin data, keyed by plugin file name. See get_plugin_data(). 278 */ 279 function get_plugins( $plugin_folder = '' ) { 280 281 $cache_plugins = wp_cache_get( 'plugins', 'plugins' ); 282 if ( ! $cache_plugins ) { 283 $cache_plugins = array(); 284 } 285 286 if ( isset( $cache_plugins[ $plugin_folder ] ) ) { 287 return $cache_plugins[ $plugin_folder ]; 288 } 289 290 $wp_plugins = array(); 291 $plugin_root = WP_PLUGIN_DIR; 292 if ( ! empty( $plugin_folder ) ) { 293 $plugin_root .= $plugin_folder; 294 } 295 296 // Files in wp-content/plugins directory. 297 $plugins_dir = @opendir( $plugin_root ); 298 $plugin_files = array(); 299 300 if ( $plugins_dir ) { 301 while ( ( $file = readdir( $plugins_dir ) ) !== false ) { 302 if ( str_starts_with( $file, '.' ) ) { 303 continue; 304 } 305 306 if ( is_dir( $plugin_root . '/' . $file ) ) { 307 $plugins_subdir = @opendir( $plugin_root . '/' . $file ); 308 309 if ( $plugins_subdir ) { 310 while ( ( $subfile = readdir( $plugins_subdir ) ) !== false ) { 311 if ( str_starts_with( $subfile, '.' ) ) { 312 continue; 313 } 314 315 if ( str_ends_with( $subfile, '.php' ) ) { 316 $plugin_files[] = "$file/$subfile"; 317 } 318 } 319 320 closedir( $plugins_subdir ); 321 } 322 } elseif ( str_ends_with( $file, '.php' ) ) { 323 $plugin_files[] = $file; 324 } 325 } 326 327 closedir( $plugins_dir ); 328 } 329 330 if ( empty( $plugin_files ) ) { 331 return $wp_plugins; 332 } 333 334 foreach ( $plugin_files as $plugin_file ) { 335 if ( ! is_readable( "$plugin_root/$plugin_file" ) ) { 336 continue; 337 } 338 339 // Do not apply markup/translate as it will be cached. 340 $plugin_data = get_plugin_data( "$plugin_root/$plugin_file", false, false ); 341 342 if ( empty( $plugin_data['Name'] ) ) { 343 continue; 344 } 345 346 $wp_plugins[ plugin_basename( $plugin_file ) ] = $plugin_data; 347 } 348 349 uasort( $wp_plugins, '_sort_uname_callback' ); 350 351 $cache_plugins[ $plugin_folder ] = $wp_plugins; 352 wp_cache_set( 'plugins', $cache_plugins, 'plugins' ); 353 354 return $wp_plugins; 355 } 356 357 /** 358 * Checks the mu-plugins directory and retrieve all mu-plugin files with any plugin data. 359 * 360 * WordPress only includes mu-plugin files in the base mu-plugins directory (wp-content/mu-plugins). 361 * 362 * @since 3.0.0 363 * @return array[] Array of arrays of mu-plugin data, keyed by plugin file name. See get_plugin_data(). 364 */ 365 function get_mu_plugins() { 366 $wp_plugins = array(); 367 $plugin_files = array(); 368 369 if ( ! is_dir( WPMU_PLUGIN_DIR ) ) { 370 return $wp_plugins; 371 } 372 373 // Files in wp-content/mu-plugins directory. 374 $plugins_dir = @opendir( WPMU_PLUGIN_DIR ); 375 if ( $plugins_dir ) { 376 while ( ( $file = readdir( $plugins_dir ) ) !== false ) { 377 if ( str_ends_with( $file, '.php' ) ) { 378 $plugin_files[] = $file; 379 } 380 } 381 } else { 382 return $wp_plugins; 383 } 384 385 closedir( $plugins_dir ); 386 387 if ( empty( $plugin_files ) ) { 388 return $wp_plugins; 389 } 390 391 foreach ( $plugin_files as $plugin_file ) { 392 if ( ! is_readable( WPMU_PLUGIN_DIR . "/$plugin_file" ) ) { 393 continue; 394 } 395 396 // Do not apply markup/translate as it will be cached. 397 $plugin_data = get_plugin_data( WPMU_PLUGIN_DIR . "/$plugin_file", false, false ); 398 399 if ( empty( $plugin_data['Name'] ) ) { 400 $plugin_data['Name'] = $plugin_file; 401 } 402 403 $wp_plugins[ $plugin_file ] = $plugin_data; 404 } 405 406 if ( isset( $wp_plugins['index.php'] ) && filesize( WPMU_PLUGIN_DIR . '/index.php' ) <= 30 ) { 407 // Silence is golden. 408 unset( $wp_plugins['index.php'] ); 409 } 410 411 uasort( $wp_plugins, '_sort_uname_callback' ); 412 413 return $wp_plugins; 414 } 415 416 /** 417 * Declares a callback to sort array by a 'Name' key. 418 * 419 * @since 3.1.0 420 * 421 * @access private 422 * 423 * @param array $a array with 'Name' key. 424 * @param array $b array with 'Name' key. 425 * @return int Return 0 or 1 based on two string comparison. 426 */ 427 function _sort_uname_callback( $a, $b ) { 428 return strnatcasecmp( $a['Name'], $b['Name'] ); 429 } 430 431 /** 432 * Checks the wp-content directory and retrieve all drop-ins with any plugin data. 433 * 434 * @since 3.0.0 435 * @return array[] Array of arrays of dropin plugin data, keyed by plugin file name. See get_plugin_data(). 436 */ 437 function get_dropins() { 438 $dropins = array(); 439 $plugin_files = array(); 440 441 $_dropins = _get_dropins(); 442 443 // Files in wp-content directory. 444 $plugins_dir = @opendir( WP_CONTENT_DIR ); 445 if ( $plugins_dir ) { 446 while ( ( $file = readdir( $plugins_dir ) ) !== false ) { 447 if ( isset( $_dropins[ $file ] ) ) { 448 $plugin_files[] = $file; 449 } 450 } 451 } else { 452 return $dropins; 453 } 454 455 closedir( $plugins_dir ); 456 457 if ( empty( $plugin_files ) ) { 458 return $dropins; 459 } 460 461 foreach ( $plugin_files as $plugin_file ) { 462 if ( ! is_readable( WP_CONTENT_DIR . "/$plugin_file" ) ) { 463 continue; 464 } 465 466 // Do not apply markup/translate as it will be cached. 467 $plugin_data = get_plugin_data( WP_CONTENT_DIR . "/$plugin_file", false, false ); 468 469 if ( empty( $plugin_data['Name'] ) ) { 470 $plugin_data['Name'] = $plugin_file; 471 } 472 473 $dropins[ $plugin_file ] = $plugin_data; 474 } 475 476 uksort( $dropins, 'strnatcasecmp' ); 477 478 return $dropins; 479 } 480 481 /** 482 * Returns drop-in plugins that WordPress uses. 483 * 484 * Includes Multisite drop-ins only when is_multisite() 485 * 486 * @since 3.0.0 487 * 488 * @return array[] { 489 * Key is file name. The value is an array of data about the drop-in. 490 * 491 * @type array ...$0 { 492 * Data about the drop-in. 493 * 494 * @type string $0 The purpose of the drop-in. 495 * @type string|true $1 Name of the constant that must be true for the drop-in 496 * to be used, or true if no constant is required. 497 * } 498 * } 499 */ 500 function _get_dropins() { 501 $dropins = array( 502 'advanced-cache.php' => array( __( 'Advanced caching plugin.' ), 'WP_CACHE' ), // WP_CACHE 503 'db.php' => array( __( 'Custom database class.' ), true ), // Auto on load. 504 'db-error.php' => array( __( 'Custom database error message.' ), true ), // Auto on error. 505 'install.php' => array( __( 'Custom installation script.' ), true ), // Auto on installation. 506 'maintenance.php' => array( __( 'Custom maintenance message.' ), true ), // Auto on maintenance. 507 'object-cache.php' => array( __( 'External object cache.' ), true ), // Auto on load. 508 'php-error.php' => array( __( 'Custom PHP error message.' ), true ), // Auto on error. 509 'fatal-error-handler.php' => array( __( 'Custom PHP fatal error handler.' ), true ), // Auto on error. 510 ); 511 512 if ( is_multisite() ) { 513 $dropins['sunrise.php'] = array( __( 'Executed before Multisite is loaded.' ), 'SUNRISE' ); // SUNRISE 514 $dropins['blog-deleted.php'] = array( __( 'Custom site deleted message.' ), true ); // Auto on deleted blog. 515 $dropins['blog-inactive.php'] = array( __( 'Custom site inactive message.' ), true ); // Auto on inactive blog. 516 $dropins['blog-suspended.php'] = array( __( 'Custom site suspended message.' ), true ); // Auto on archived or spammed blog. 517 } 518 519 return $dropins; 520 } 521 522 /** 523 * Determines whether a plugin is active. 524 * 525 * Only plugins installed in the plugins/ folder can be active. 526 * 527 * Plugins in the mu-plugins/ folder can't be "activated," so this function will 528 * return false for those plugins. 529 * 530 * For more information on this and similar theme functions, check out 531 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 532 * Conditional Tags} article in the Theme Developer Handbook. 533 * 534 * @since 2.5.0 535 * 536 * @param string $plugin Path to the plugin file relative to the plugins directory. 537 * @return bool True, if in the active plugins list. False, not in the list. 538 */ 539 function is_plugin_active( $plugin ) { 540 return in_array( $plugin, (array) get_option( 'active_plugins', array() ), true ) || is_plugin_active_for_network( $plugin ); 541 } 542 543 /** 544 * Determines whether the plugin is inactive. 545 * 546 * Reverse of is_plugin_active(). Used as a callback. 547 * 548 * For more information on this and similar theme functions, check out 549 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 550 * Conditional Tags} article in the Theme Developer Handbook. 551 * 552 * @since 3.1.0 553 * 554 * @see is_plugin_active() 555 * 556 * @param string $plugin Path to the plugin file relative to the plugins directory. 557 * @return bool True if inactive. False if active. 558 */ 559 function is_plugin_inactive( $plugin ) { 560 return ! is_plugin_active( $plugin ); 561 } 562 563 /** 564 * Determines whether the plugin is active for the entire network. 565 * 566 * Only plugins installed in the plugins/ folder can be active. 567 * 568 * Plugins in the mu-plugins/ folder can't be "activated," so this function will 569 * return false for those plugins. 570 * 571 * For more information on this and similar theme functions, check out 572 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 573 * Conditional Tags} article in the Theme Developer Handbook. 574 * 575 * @since 3.0.0 576 * 577 * @param string $plugin Path to the plugin file relative to the plugins directory. 578 * @return bool True if active for the network, otherwise false. 579 */ 580 function is_plugin_active_for_network( $plugin ) { 581 if ( ! is_multisite() ) { 582 return false; 583 } 584 585 $plugins = get_site_option( 'active_sitewide_plugins' ); 586 if ( isset( $plugins[ $plugin ] ) ) { 587 return true; 588 } 589 590 return false; 591 } 592 593 /** 594 * Checks for "Network: true" in the plugin header to see if this should 595 * be activated only as a network wide plugin. The plugin would also work 596 * when Multisite is not enabled. 597 * 598 * Checks for "Site Wide Only: true" for backward compatibility. 599 * 600 * @since 3.0.0 601 * 602 * @param string $plugin Path to the plugin file relative to the plugins directory. 603 * @return bool True if plugin is network only, false otherwise. 604 */ 605 function is_network_only_plugin( $plugin ) { 606 $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin ); 607 if ( $plugin_data ) { 608 return $plugin_data['Network']; 609 } 610 return false; 611 } 612 613 /** 614 * Attempts activation of plugin in a "sandbox" and redirects on success. 615 * 616 * A plugin that is already activated will not attempt to be activated again. 617 * 618 * The way it works is by setting the redirection to the error before trying to 619 * include the plugin file. If the plugin fails, then the redirection will not 620 * be overwritten with the success message. Also, the options will not be 621 * updated and the activation hook will not be called on plugin error. 622 * 623 * It should be noted that in no way the below code will actually prevent errors 624 * within the file. The code should not be used elsewhere to replicate the 625 * "sandbox", which uses redirection to work. 626 * {@source 13 1} 627 * 628 * If any errors are found or text is outputted, then it will be captured to 629 * ensure that the success redirection will update the error redirection. 630 * 631 * @since 2.5.0 632 * @since 5.2.0 Test for WordPress version and PHP version compatibility. 633 * 634 * @param string $plugin Path to the plugin file relative to the plugins directory. 635 * @param string $redirect Optional. URL to redirect to. 636 * @param bool $network_wide Optional. Whether to enable the plugin for all sites in the network 637 * or just the current site. Multisite only. Default false. 638 * @param bool $silent Optional. Whether to prevent calling activation hooks. Default false. 639 * @return null|WP_Error Null on success, WP_Error on invalid file. 640 */ 641 function activate_plugin( $plugin, $redirect = '', $network_wide = false, $silent = false ) { 642 $plugin = plugin_basename( trim( $plugin ) ); 643 644 if ( is_multisite() && ( $network_wide || is_network_only_plugin( $plugin ) ) ) { 645 $network_wide = true; 646 $current = get_site_option( 'active_sitewide_plugins', array() ); 647 $_GET['networkwide'] = 1; // Back compat for plugins looking for this value. 648 } else { 649 $current = get_option( 'active_plugins', array() ); 650 } 651 652 $valid = validate_plugin( $plugin ); 653 if ( is_wp_error( $valid ) ) { 654 return $valid; 655 } 656 657 $requirements = validate_plugin_requirements( $plugin ); 658 if ( is_wp_error( $requirements ) ) { 659 return $requirements; 660 } 661 662 if ( $network_wide && ! isset( $current[ $plugin ] ) 663 || ! $network_wide && ! in_array( $plugin, $current, true ) 664 ) { 665 if ( ! empty( $redirect ) ) { 666 // We'll override this later if the plugin can be included without fatal error. 667 wp_redirect( add_query_arg( '_error_nonce', wp_create_nonce( 'plugin-activation-error_' . $plugin ), $redirect ) ); 668 } 669 670 ob_start(); 671 672 // Load the plugin to test whether it throws any errors. 673 plugin_sandbox_scrape( $plugin ); 674 675 if ( ! $silent ) { 676 /** 677 * Fires before a plugin is activated. 678 * 679 * If a plugin is silently activated (such as during an update), 680 * this hook does not fire. 681 * 682 * @since 2.9.0 683 * 684 * @param string $plugin Path to the plugin file relative to the plugins directory. 685 * @param bool $network_wide Whether to enable the plugin for all sites in the network 686 * or just the current site. Multisite only. Default false. 687 */ 688 do_action( 'activate_plugin', $plugin, $network_wide ); 689 690 /** 691 * Fires as a specific plugin is being activated. 692 * 693 * This hook is the "activation" hook used internally by register_activation_hook(). 694 * The dynamic portion of the hook name, `$plugin`, refers to the plugin basename. 695 * 696 * If a plugin is silently activated (such as during an update), this hook does not fire. 697 * 698 * @since 2.0.0 699 * 700 * @param bool $network_wide Whether to enable the plugin for all sites in the network 701 * or just the current site. Multisite only. Default false. 702 */ 703 do_action( "activate_{$plugin}", $network_wide ); 704 } 705 706 if ( $network_wide ) { 707 $current = get_site_option( 'active_sitewide_plugins', array() ); 708 $current[ $plugin ] = time(); 709 update_site_option( 'active_sitewide_plugins', $current ); 710 } else { 711 $current = get_option( 'active_plugins', array() ); 712 $current[] = $plugin; 713 sort( $current ); 714 update_option( 'active_plugins', $current ); 715 } 716 717 if ( ! $silent ) { 718 /** 719 * Fires after a plugin has been activated. 720 * 721 * If a plugin is silently activated (such as during an update), 722 * this hook does not fire. 723 * 724 * @since 2.9.0 725 * 726 * @param string $plugin Path to the plugin file relative to the plugins directory. 727 * @param bool $network_wide Whether to enable the plugin for all sites in the network 728 * or just the current site. Multisite only. Default false. 729 */ 730 do_action( 'activated_plugin', $plugin, $network_wide ); 731 } 732 733 if ( ob_get_length() > 0 ) { 734 $output = ob_get_clean(); 735 return new WP_Error( 'unexpected_output', __( 'The plugin generated unexpected output.' ), $output ); 736 } 737 738 ob_end_clean(); 739 } 740 741 return null; 742 } 743 744 /** 745 * Deactivates a single plugin or multiple plugins. 746 * 747 * The deactivation hook is disabled by the plugin upgrader by using the $silent 748 * parameter. 749 * 750 * @since 2.5.0 751 * 752 * @param string|string[] $plugins Single plugin or list of plugins to deactivate. 753 * @param bool $silent Prevent calling deactivation hooks. Default false. 754 * @param bool|null $network_wide Whether to deactivate the plugin for all sites in the network. 755 * A value of null will deactivate plugins for both the network 756 * and the current site. Multisite only. Default null. 757 */ 758 function deactivate_plugins( $plugins, $silent = false, $network_wide = null ) { 759 if ( is_multisite() ) { 760 $network_current = get_site_option( 'active_sitewide_plugins', array() ); 761 } 762 $current = get_option( 'active_plugins', array() ); 763 $do_blog = false; 764 $do_network = false; 765 766 foreach ( (array) $plugins as $plugin ) { 767 $plugin = plugin_basename( trim( $plugin ) ); 768 if ( ! is_plugin_active( $plugin ) ) { 769 continue; 770 } 771 772 $network_deactivating = ( false !== $network_wide ) && is_plugin_active_for_network( $plugin ); 773 774 if ( ! $silent ) { 775 /** 776 * Fires before a plugin is deactivated. 777 * 778 * If a plugin is silently deactivated (such as during an update), 779 * this hook does not fire. 780 * 781 * @since 2.9.0 782 * 783 * @param string $plugin Path to the plugin file relative to the plugins directory. 784 * @param bool $network_deactivating Whether the plugin is deactivated for all sites in the network 785 * or just the current site. Multisite only. Default false. 786 */ 787 do_action( 'deactivate_plugin', $plugin, $network_deactivating ); 788 } 789 790 if ( false !== $network_wide ) { 791 if ( is_plugin_active_for_network( $plugin ) ) { 792 $do_network = true; 793 unset( $network_current[ $plugin ] ); 794 } elseif ( $network_wide ) { 795 continue; 796 } 797 } 798 799 if ( true !== $network_wide ) { 800 $key = array_search( $plugin, $current, true ); 801 if ( false !== $key ) { 802 $do_blog = true; 803 unset( $current[ $key ] ); 804 } 805 } 806 807 if ( $do_blog && wp_is_recovery_mode() ) { 808 list( $extension ) = explode( '/', $plugin ); 809 wp_paused_plugins()->delete( $extension ); 810 } 811 812 if ( ! $silent ) { 813 /** 814 * Fires as a specific plugin is being deactivated. 815 * 816 * This hook is the "deactivation" hook used internally by register_deactivation_hook(). 817 * The dynamic portion of the hook name, `$plugin`, refers to the plugin basename. 818 * 819 * If a plugin is silently deactivated (such as during an update), this hook does not fire. 820 * 821 * @since 2.0.0 822 * 823 * @param bool $network_deactivating Whether the plugin is deactivated for all sites in the network 824 * or just the current site. Multisite only. Default false. 825 */ 826 do_action( "deactivate_{$plugin}", $network_deactivating ); 827 828 /** 829 * Fires after a plugin is deactivated. 830 * 831 * If a plugin is silently deactivated (such as during an update), 832 * this hook does not fire. 833 * 834 * @since 2.9.0 835 * 836 * @param string $plugin Path to the plugin file relative to the plugins directory. 837 * @param bool $network_deactivating Whether the plugin is deactivated for all sites in the network 838 * or just the current site. Multisite only. Default false. 839 */ 840 do_action( 'deactivated_plugin', $plugin, $network_deactivating ); 841 } 842 } 843 844 if ( $do_blog ) { 845 update_option( 'active_plugins', $current ); 846 } 847 if ( $do_network ) { 848 update_site_option( 'active_sitewide_plugins', $network_current ); 849 } 850 } 851 852 /** 853 * Activates multiple plugins. 854 * 855 * When WP_Error is returned, it does not mean that one of the plugins had 856 * errors. It means that one or more of the plugin file paths were invalid. 857 * 858 * The execution will be halted as soon as one of the plugins has an error. 859 * 860 * @since 2.6.0 861 * 862 * @param string|string[] $plugins Single plugin or list of plugins to activate. 863 * @param string $redirect Redirect to page after successful activation. 864 * @param bool $network_wide Whether to enable the plugin for all sites in the network. 865 * Default false. 866 * @param bool $silent Prevent calling activation hooks. Default false. 867 * @return true|WP_Error True when finished or WP_Error if there were errors during a plugin activation. 868 */ 869 function activate_plugins( $plugins, $redirect = '', $network_wide = false, $silent = false ) { 870 if ( ! is_array( $plugins ) ) { 871 $plugins = array( $plugins ); 872 } 873 874 $errors = array(); 875 foreach ( $plugins as $plugin ) { 876 if ( ! empty( $redirect ) ) { 877 $redirect = add_query_arg( 'plugin', $plugin, $redirect ); 878 } 879 $result = activate_plugin( $plugin, $redirect, $network_wide, $silent ); 880 if ( is_wp_error( $result ) ) { 881 $errors[ $plugin ] = $result; 882 } 883 } 884 885 if ( ! empty( $errors ) ) { 886 return new WP_Error( 'plugins_invalid', __( 'One of the plugins is invalid.' ), $errors ); 887 } 888 889 return true; 890 } 891 892 /** 893 * Removes directory and files of a plugin for a list of plugins. 894 * 895 * @since 2.6.0 896 * 897 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. 898 * 899 * @param string[] $plugins List of plugin paths to delete, relative to the plugins directory. 900 * @param string $deprecated Not used. 901 * @return bool|null|WP_Error True on success, false if `$plugins` is empty, `WP_Error` on failure. 902 * `null` if filesystem credentials are required to proceed. 903 */ 904 function delete_plugins( $plugins, $deprecated = '' ) { 905 global $wp_filesystem; 906 907 if ( empty( $plugins ) ) { 908 return false; 909 } 910 911 $checked = array(); 912 foreach ( $plugins as $plugin ) { 913 $checked[] = 'checked[]=' . $plugin; 914 } 915 916 $url = wp_nonce_url( 'plugins.php?action=delete-selected&verify-delete=1&' . implode( '&', $checked ), 'bulk-plugins' ); 917 918 ob_start(); 919 $credentials = request_filesystem_credentials( $url ); 920 $data = ob_get_clean(); 921 922 if ( false === $credentials ) { 923 if ( ! empty( $data ) ) { 924 require_once ABSPATH . 'wp-admin/admin-header.php'; 925 echo $data; 926 require_once ABSPATH . 'wp-admin/admin-footer.php'; 927 exit; 928 } 929 return; 930 } 931 932 if ( ! WP_Filesystem( $credentials ) ) { 933 ob_start(); 934 // Failed to connect. Error and request again. 935 request_filesystem_credentials( $url, '', true ); 936 $data = ob_get_clean(); 937 938 if ( ! empty( $data ) ) { 939 require_once ABSPATH . 'wp-admin/admin-header.php'; 940 echo $data; 941 require_once ABSPATH . 'wp-admin/admin-footer.php'; 942 exit; 943 } 944 return; 945 } 946 947 if ( ! is_object( $wp_filesystem ) ) { 948 return new WP_Error( 'fs_unavailable', __( 'Could not access filesystem.' ) ); 949 } 950 951 if ( is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { 952 return new WP_Error( 'fs_error', __( 'Filesystem error.' ), $wp_filesystem->errors ); 953 } 954 955 // Get the base plugin folder. 956 $plugins_dir = $wp_filesystem->wp_plugins_dir(); 957 if ( empty( $plugins_dir ) ) { 958 return new WP_Error( 'fs_no_plugins_dir', __( 'Unable to locate WordPress plugin directory.' ) ); 959 } 960 961 $plugins_dir = trailingslashit( $plugins_dir ); 962 963 $plugin_translations = wp_get_installed_translations( 'plugins' ); 964 965 $errors = array(); 966 967 foreach ( $plugins as $plugin_file ) { 968 // Run Uninstall hook. 969 if ( is_uninstallable_plugin( $plugin_file ) ) { 970 uninstall_plugin( $plugin_file ); 971 } 972 973 /** 974 * Fires immediately before a plugin deletion attempt. 975 * 976 * @since 4.4.0 977 * 978 * @param string $plugin_file Path to the plugin file relative to the plugins directory. 979 */ 980 do_action( 'delete_plugin', $plugin_file ); 981 982 $this_plugin_dir = trailingslashit( dirname( $plugins_dir . $plugin_file ) ); 983 984 /* 985 * If plugin is in its own directory, recursively delete the directory. 986 * Base check on if plugin includes directory separator AND that it's not the root plugin folder. 987 */ 988 if ( strpos( $plugin_file, '/' ) && $this_plugin_dir !== $plugins_dir ) { 989 $deleted = $wp_filesystem->delete( $this_plugin_dir, true ); 990 } else { 991 $deleted = $wp_filesystem->delete( $plugins_dir . $plugin_file ); 992 } 993 994 /** 995 * Fires immediately after a plugin deletion attempt. 996 * 997 * @since 4.4.0 998 * 999 * @param string $plugin_file Path to the plugin file relative to the plugins directory. 1000 * @param bool $deleted Whether the plugin deletion was successful. 1001 */ 1002 do_action( 'deleted_plugin', $plugin_file, $deleted ); 1003 1004 if ( ! $deleted ) { 1005 $errors[] = $plugin_file; 1006 continue; 1007 } 1008 1009 $plugin_slug = dirname( $plugin_file ); 1010 1011 if ( 'hello.php' === $plugin_file ) { 1012 $plugin_slug = 'hello-dolly'; 1013 } 1014 1015 // Remove language files, silently. 1016 if ( '.' !== $plugin_slug && ! empty( $plugin_translations[ $plugin_slug ] ) ) { 1017 $translations = $plugin_translations[ $plugin_slug ]; 1018 1019 foreach ( $translations as $translation => $data ) { 1020 $wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.po' ); 1021 $wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.mo' ); 1022 $wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.l10n.php' ); 1023 1024 $json_translation_files = glob( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '-*.json' ); 1025 if ( $json_translation_files ) { 1026 array_map( array( $wp_filesystem, 'delete' ), $json_translation_files ); 1027 } 1028 } 1029 } 1030 } 1031 1032 // Remove deleted plugins from the plugin updates list. 1033 $current = get_site_transient( 'update_plugins' ); 1034 if ( $current ) { 1035 // Don't remove the plugins that weren't deleted. 1036 $deleted = array_diff( $plugins, $errors ); 1037 1038 foreach ( $deleted as $plugin_file ) { 1039 unset( $current->response[ $plugin_file ] ); 1040 } 1041 1042 set_site_transient( 'update_plugins', $current ); 1043 } 1044 1045 if ( ! empty( $errors ) ) { 1046 if ( 1 === count( $errors ) ) { 1047 /* translators: %s: Plugin filename. */ 1048 $message = __( 'Could not fully remove the plugin %s.' ); 1049 } else { 1050 /* translators: %s: Comma-separated list of plugin filenames. */ 1051 $message = __( 'Could not fully remove the plugins %s.' ); 1052 } 1053 1054 return new WP_Error( 'could_not_remove_plugin', sprintf( $message, implode( ', ', $errors ) ) ); 1055 } 1056 1057 return true; 1058 } 1059 1060 /** 1061 * Validates active plugins. 1062 * 1063 * Validate all active plugins, deactivates invalid and 1064 * returns an array of deactivated ones. 1065 * 1066 * @since 2.5.0 1067 * @return WP_Error[] Array of plugin errors keyed by plugin file name. 1068 */ 1069 function validate_active_plugins() { 1070 $plugins = get_option( 'active_plugins', array() ); 1071 // Validate vartype: array. 1072 if ( ! is_array( $plugins ) ) { 1073 update_option( 'active_plugins', array() ); 1074 $plugins = array(); 1075 } 1076 1077 if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) { 1078 $network_plugins = (array) get_site_option( 'active_sitewide_plugins', array() ); 1079 $plugins = array_merge( $plugins, array_keys( $network_plugins ) ); 1080 } 1081 1082 if ( empty( $plugins ) ) { 1083 return array(); 1084 } 1085 1086 $invalid = array(); 1087 1088 // Invalid plugins get deactivated. 1089 foreach ( $plugins as $plugin ) { 1090 $result = validate_plugin( $plugin ); 1091 if ( is_wp_error( $result ) ) { 1092 $invalid[ $plugin ] = $result; 1093 deactivate_plugins( $plugin, true ); 1094 } 1095 } 1096 return $invalid; 1097 } 1098 1099 /** 1100 * Validates the plugin path. 1101 * 1102 * Checks that the main plugin file exists and is a valid plugin. See validate_file(). 1103 * 1104 * @since 2.5.0 1105 * 1106 * @param string $plugin Path to the plugin file relative to the plugins directory. 1107 * @return int|WP_Error 0 on success, WP_Error on failure. 1108 */ 1109 function validate_plugin( $plugin ) { 1110 if ( validate_file( $plugin ) ) { 1111 return new WP_Error( 'plugin_invalid', __( 'Invalid plugin path.' ) ); 1112 } 1113 if ( ! file_exists( WP_PLUGIN_DIR . '/' . $plugin ) ) { 1114 return new WP_Error( 'plugin_not_found', __( 'Plugin file does not exist.' ) ); 1115 } 1116 1117 $installed_plugins = get_plugins(); 1118 if ( ! isset( $installed_plugins[ $plugin ] ) ) { 1119 return new WP_Error( 'no_plugin_header', __( 'The plugin does not have a valid header.' ) ); 1120 } 1121 return 0; 1122 } 1123 1124 /** 1125 * Validates the plugin requirements for WordPress version and PHP version. 1126 * 1127 * Uses the information from `Requires at least`, `Requires PHP` and `Requires Plugins` headers 1128 * defined in the plugin's main PHP file. 1129 * 1130 * @since 5.2.0 1131 * @since 5.3.0 Added support for reading the headers from the plugin's 1132 * main PHP file, with `readme.txt` as a fallback. 1133 * @since 5.8.0 Removed support for using `readme.txt` as a fallback. 1134 * @since 6.5.0 Added support for the 'Requires Plugins' header. 1135 * 1136 * @param string $plugin Path to the plugin file relative to the plugins directory. 1137 * @return true|WP_Error True if requirements are met, WP_Error on failure. 1138 */ 1139 function validate_plugin_requirements( $plugin ) { 1140 $plugin_headers = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin ); 1141 1142 $requirements = array( 1143 'requires' => ! empty( $plugin_headers['RequiresWP'] ) ? $plugin_headers['RequiresWP'] : '', 1144 'requires_php' => ! empty( $plugin_headers['RequiresPHP'] ) ? $plugin_headers['RequiresPHP'] : '', 1145 'requires_plugins' => ! empty( $plugin_headers['RequiresPlugins'] ) ? $plugin_headers['RequiresPlugins'] : '', 1146 ); 1147 1148 $compatible_wp = is_wp_version_compatible( $requirements['requires'] ); 1149 $compatible_php = is_php_version_compatible( $requirements['requires_php'] ); 1150 1151 $php_update_message = '</p><p>' . sprintf( 1152 /* translators: %s: URL to Update PHP page. */ 1153 __( '<a href="%s">Learn more about updating PHP</a>.' ), 1154 esc_url( wp_get_update_php_url() ) 1155 ); 1156 1157 $annotation = wp_get_update_php_annotation(); 1158 1159 if ( $annotation ) { 1160 $php_update_message .= '</p><p><em>' . $annotation . '</em>'; 1161 } 1162 1163 if ( ! $compatible_wp && ! $compatible_php ) { 1164 return new WP_Error( 1165 'plugin_wp_php_incompatible', 1166 '<p>' . sprintf( 1167 /* translators: 1: Current WordPress version, 2: Current PHP version, 3: Plugin name, 4: Required WordPress version, 5: Required PHP version. */ 1168 _x( '<strong>Error:</strong> Current versions of WordPress (%1$s) and PHP (%2$s) do not meet minimum requirements for %3$s. The plugin requires WordPress %4$s and PHP %5$s.', 'plugin' ), 1169 get_bloginfo( 'version' ), 1170 PHP_VERSION, 1171 $plugin_headers['Name'], 1172 $requirements['requires'], 1173 $requirements['requires_php'] 1174 ) . $php_update_message . '</p>' 1175 ); 1176 } elseif ( ! $compatible_php ) { 1177 return new WP_Error( 1178 'plugin_php_incompatible', 1179 '<p>' . sprintf( 1180 /* translators: 1: Current PHP version, 2: Plugin name, 3: Required PHP version. */ 1181 _x( '<strong>Error:</strong> Current PHP version (%1$s) does not meet minimum requirements for %2$s. The plugin requires PHP %3$s.', 'plugin' ), 1182 PHP_VERSION, 1183 $plugin_headers['Name'], 1184 $requirements['requires_php'] 1185 ) . $php_update_message . '</p>' 1186 ); 1187 } elseif ( ! $compatible_wp ) { 1188 return new WP_Error( 1189 'plugin_wp_incompatible', 1190 '<p>' . sprintf( 1191 /* translators: 1: Current WordPress version, 2: Plugin name, 3: Required WordPress version. */ 1192 _x( '<strong>Error:</strong> Current WordPress version (%1$s) does not meet minimum requirements for %2$s. The plugin requires WordPress %3$s.', 'plugin' ), 1193 get_bloginfo( 'version' ), 1194 $plugin_headers['Name'], 1195 $requirements['requires'] 1196 ) . '</p>' 1197 ); 1198 } 1199 1200 WP_Plugin_Dependencies::initialize(); 1201 1202 if ( WP_Plugin_Dependencies::has_unmet_dependencies( $plugin ) ) { 1203 $dependency_names = WP_Plugin_Dependencies::get_dependency_names( $plugin ); 1204 $unmet_dependencies = array(); 1205 $unmet_dependency_names = array(); 1206 1207 foreach ( $dependency_names as $dependency => $dependency_name ) { 1208 $dependency_file = WP_Plugin_Dependencies::get_dependency_filepath( $dependency ); 1209 1210 if ( false === $dependency_file ) { 1211 $unmet_dependencies['not_installed'][ $dependency ] = $dependency_name; 1212 $unmet_dependency_names[] = $dependency_name; 1213 } elseif ( is_plugin_inactive( $dependency_file ) ) { 1214 $unmet_dependencies['inactive'][ $dependency ] = $dependency_name; 1215 $unmet_dependency_names[] = $dependency_name; 1216 } 1217 } 1218 1219 $error_message = sprintf( 1220 /* translators: 1: Plugin name, 2: Number of plugins, 3: A comma-separated list of plugin names. */ 1221 _n( 1222 '<strong>Error:</strong> %1$s requires %2$d plugin to be installed and activated: %3$s.', 1223 '<strong>Error:</strong> %1$s requires %2$d plugins to be installed and activated: %3$s.', 1224 count( $unmet_dependency_names ) 1225 ), 1226 $plugin_headers['Name'], 1227 count( $unmet_dependency_names ), 1228 implode( wp_get_list_item_separator(), $unmet_dependency_names ) 1229 ); 1230 1231 if ( is_multisite() ) { 1232 if ( current_user_can( 'manage_network_plugins' ) ) { 1233 $error_message .= ' ' . sprintf( 1234 /* translators: %s: Link to the plugins page. */ 1235 __( '<a href="%s">Manage plugins</a>.' ), 1236 esc_url( network_admin_url( 'plugins.php' ) ) 1237 ); 1238 } else { 1239 $error_message .= ' ' . __( 'Please contact your network administrator.' ); 1240 } 1241 } else { 1242 $error_message .= ' ' . sprintf( 1243 /* translators: %s: Link to the plugins page. */ 1244 __( '<a href="%s">Manage plugins</a>.' ), 1245 esc_url( admin_url( 'plugins.php' ) ) 1246 ); 1247 } 1248 1249 return new WP_Error( 1250 'plugin_missing_dependencies', 1251 "<p>{$error_message}</p>", 1252 $unmet_dependencies 1253 ); 1254 } 1255 1256 return true; 1257 } 1258 1259 /** 1260 * Determines whether the plugin can be uninstalled. 1261 * 1262 * @since 2.7.0 1263 * 1264 * @param string $plugin Path to the plugin file relative to the plugins directory. 1265 * @return bool Whether plugin can be uninstalled. 1266 */ 1267 function is_uninstallable_plugin( $plugin ) { 1268 $file = plugin_basename( $plugin ); 1269 1270 $uninstallable_plugins = (array) get_option( 'uninstall_plugins' ); 1271 if ( isset( $uninstallable_plugins[ $file ] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname( $file ) . '/uninstall.php' ) ) { 1272 return true; 1273 } 1274 1275 return false; 1276 } 1277 1278 /** 1279 * Uninstalls a single plugin. 1280 * 1281 * Calls the uninstall hook, if it is available. 1282 * 1283 * @since 2.7.0 1284 * 1285 * @param string $plugin Path to the plugin file relative to the plugins directory. 1286 * @return true|void True if a plugin's uninstall.php file has been found and included. 1287 * Void otherwise. 1288 */ 1289 function uninstall_plugin( $plugin ) { 1290 $file = plugin_basename( $plugin ); 1291 1292 $uninstallable_plugins = (array) get_option( 'uninstall_plugins' ); 1293 1294 /** 1295 * Fires in uninstall_plugin() immediately before the plugin is uninstalled. 1296 * 1297 * @since 4.5.0 1298 * 1299 * @param string $plugin Path to the plugin file relative to the plugins directory. 1300 * @param array $uninstallable_plugins Uninstallable plugins. 1301 */ 1302 do_action( 'pre_uninstall_plugin', $plugin, $uninstallable_plugins ); 1303 1304 if ( file_exists( WP_PLUGIN_DIR . '/' . dirname( $file ) . '/uninstall.php' ) ) { 1305 if ( isset( $uninstallable_plugins[ $file ] ) ) { 1306 unset( $uninstallable_plugins[ $file ] ); 1307 update_option( 'uninstall_plugins', $uninstallable_plugins ); 1308 } 1309 unset( $uninstallable_plugins ); 1310 1311 define( 'WP_UNINSTALL_PLUGIN', $file ); 1312 1313 wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $file ); 1314 include_once WP_PLUGIN_DIR . '/' . dirname( $file ) . '/uninstall.php'; 1315 1316 return true; 1317 } 1318 1319 if ( isset( $uninstallable_plugins[ $file ] ) ) { 1320 $callable = $uninstallable_plugins[ $file ]; 1321 unset( $uninstallable_plugins[ $file ] ); 1322 update_option( 'uninstall_plugins', $uninstallable_plugins ); 1323 unset( $uninstallable_plugins ); 1324 1325 wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $file ); 1326 include_once WP_PLUGIN_DIR . '/' . $file; 1327 1328 add_action( "uninstall_{$file}", $callable ); 1329 1330 /** 1331 * Fires in uninstall_plugin() once the plugin has been uninstalled. 1332 * 1333 * The action concatenates the 'uninstall_' prefix with the basename of the 1334 * plugin passed to uninstall_plugin() to create a dynamically-named action. 1335 * 1336 * @since 2.7.0 1337 */ 1338 do_action( "uninstall_{$file}" ); 1339 } 1340 } 1341 1342 // 1343 // Menu. 1344 // 1345 1346 /** 1347 * Adds a top-level menu page. 1348 * 1349 * This function takes a capability which will be used to determine whether 1350 * or not a page is included in the menu. 1351 * 1352 * The function which is hooked in to handle the output of the page must check 1353 * that the user has the required capability as well. 1354 * 1355 * @since 1.5.0 1356 * 1357 * @global array $menu 1358 * @global array $admin_page_hooks 1359 * @global array $_registered_pages 1360 * @global array $_parent_pages 1361 * 1362 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1363 * @param string $menu_title The text to be used for the menu. 1364 * @param string $capability The capability required for this menu to be displayed to the user. 1365 * @param string $menu_slug The slug name to refer to this menu by. Should be unique for this menu page and only 1366 * include lowercase alphanumeric, dashes, and underscores characters to be compatible 1367 * with sanitize_key(). 1368 * @param callable $callback Optional. The function to be called to output the content for this page. 1369 * @param string $icon_url Optional. The URL to the icon to be used for this menu. 1370 * * Pass a base64-encoded SVG using a data URI, which will be colored to match 1371 * the color scheme. This should begin with 'data:image/svg+xml;base64,'. 1372 * * Pass the name of a Dashicons helper class to use a font icon, 1373 * e.g. 'dashicons-chart-pie'. 1374 * * Pass 'none' to leave div.wp-menu-image empty so an icon can be added via CSS. 1375 * @param int|float $position Optional. The position in the menu order this item should appear. 1376 * @return string The resulting page's hook_suffix. 1377 */ 1378 function add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $icon_url = '', $position = null ) { 1379 global $menu, $admin_page_hooks, $_registered_pages, $_parent_pages; 1380 1381 $menu_slug = plugin_basename( $menu_slug ); 1382 1383 $admin_page_hooks[ $menu_slug ] = sanitize_title( $menu_title ); 1384 1385 $hookname = get_plugin_page_hookname( $menu_slug, '' ); 1386 1387 if ( ! empty( $callback ) && ! empty( $hookname ) && current_user_can( $capability ) ) { 1388 add_action( $hookname, $callback ); 1389 } 1390 1391 if ( empty( $icon_url ) ) { 1392 $icon_url = 'dashicons-admin-generic'; 1393 $icon_class = 'menu-icon-generic '; 1394 } else { 1395 $icon_url = set_url_scheme( $icon_url ); 1396 $icon_class = ''; 1397 } 1398 1399 $new_menu = array( $menu_title, $capability, $menu_slug, $page_title, 'menu-top ' . $icon_class . $hookname, $hookname, $icon_url ); 1400 1401 if ( null !== $position && ! is_numeric( $position ) ) { 1402 _doing_it_wrong( 1403 __FUNCTION__, 1404 sprintf( 1405 /* translators: %s: add_menu_page() */ 1406 __( 'The seventh parameter passed to %s should be numeric representing menu position.' ), 1407 '<code>add_menu_page()</code>' 1408 ), 1409 '6.0.0' 1410 ); 1411 $position = null; 1412 } 1413 1414 if ( null === $position || ! is_numeric( $position ) ) { 1415 $menu[] = $new_menu; 1416 } elseif ( isset( $menu[ (string) $position ] ) ) { 1417 $collision_avoider = base_convert( substr( md5( $menu_slug . $menu_title ), -4 ), 16, 10 ) * 0.00001; 1418 $position = (string) ( $position + $collision_avoider ); 1419 $menu[ $position ] = $new_menu; 1420 } else { 1421 /* 1422 * Cast menu position to a string. 1423 * 1424 * This allows for floats to be passed as the position. PHP will normally cast a float to an 1425 * integer value, this ensures the float retains its mantissa (positive fractional part). 1426 * 1427 * A string containing an integer value, eg "10", is treated as a numeric index. 1428 */ 1429 $position = (string) $position; 1430 $menu[ $position ] = $new_menu; 1431 } 1432 1433 $_registered_pages[ $hookname ] = true; 1434 1435 // No parent as top level. 1436 $_parent_pages[ $menu_slug ] = false; 1437 1438 return $hookname; 1439 } 1440 1441 /** 1442 * Adds a submenu page. 1443 * 1444 * This function takes a capability which will be used to determine whether 1445 * or not a page is included in the menu. 1446 * 1447 * The function which is hooked in to handle the output of the page must check 1448 * that the user has the required capability as well. 1449 * 1450 * @since 1.5.0 1451 * @since 5.3.0 Added the `$position` parameter. 1452 * 1453 * @global array $submenu 1454 * @global array $menu 1455 * @global array $_wp_real_parent_file 1456 * @global bool $_wp_submenu_nopriv 1457 * @global array $_registered_pages 1458 * @global array $_parent_pages 1459 * 1460 * @param string $parent_slug The slug name for the parent menu (or the file name of a standard 1461 * WordPress admin page). 1462 * @param string $page_title The text to be displayed in the title tags of the page when the menu 1463 * is selected. 1464 * @param string $menu_title The text to be used for the menu. 1465 * @param string $capability The capability required for this menu to be displayed to the user. 1466 * @param string $menu_slug The slug name to refer to this menu by. Should be unique for this menu 1467 * and only include lowercase alphanumeric, dashes, and underscores characters 1468 * to be compatible with sanitize_key(). 1469 * @param callable $callback Optional. The function to be called to output the content for this page. 1470 * @param int|float $position Optional. The position in the menu order this item should appear. 1471 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1472 */ 1473 function add_submenu_page( $parent_slug, $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1474 global $submenu, $menu, $_wp_real_parent_file, $_wp_submenu_nopriv, 1475 $_registered_pages, $_parent_pages; 1476 1477 $menu_slug = plugin_basename( $menu_slug ); 1478 $parent_slug = plugin_basename( $parent_slug ); 1479 1480 if ( isset( $_wp_real_parent_file[ $parent_slug ] ) ) { 1481 $parent_slug = $_wp_real_parent_file[ $parent_slug ]; 1482 } 1483 1484 if ( ! current_user_can( $capability ) ) { 1485 $_wp_submenu_nopriv[ $parent_slug ][ $menu_slug ] = true; 1486 return false; 1487 } 1488 1489 /* 1490 * If the parent doesn't already have a submenu, add a link to the parent 1491 * as the first item in the submenu. If the submenu file is the same as the 1492 * parent file someone is trying to link back to the parent manually. In 1493 * this case, don't automatically add a link back to avoid duplication. 1494 */ 1495 if ( ! isset( $submenu[ $parent_slug ] ) && $menu_slug !== $parent_slug ) { 1496 foreach ( (array) $menu as $parent_menu ) { 1497 if ( $parent_menu[2] === $parent_slug && current_user_can( $parent_menu[1] ) ) { 1498 $submenu[ $parent_slug ][] = array_slice( $parent_menu, 0, 4 ); 1499 } 1500 } 1501 } 1502 1503 $new_sub_menu = array( $menu_title, $capability, $menu_slug, $page_title ); 1504 1505 if ( null !== $position && ! is_numeric( $position ) ) { 1506 _doing_it_wrong( 1507 __FUNCTION__, 1508 sprintf( 1509 /* translators: %s: add_submenu_page() */ 1510 __( 'The seventh parameter passed to %s should be numeric representing menu position.' ), 1511 '<code>add_submenu_page()</code>' 1512 ), 1513 '5.3.0' 1514 ); 1515 $position = null; 1516 } 1517 1518 if ( 1519 null === $position || 1520 ( ! isset( $submenu[ $parent_slug ] ) || $position >= count( $submenu[ $parent_slug ] ) ) 1521 ) { 1522 $submenu[ $parent_slug ][] = $new_sub_menu; 1523 } else { 1524 // Test for a negative position. 1525 $position = max( $position, 0 ); 1526 if ( 0 === $position ) { 1527 // For negative or `0` positions, prepend the submenu. 1528 array_unshift( $submenu[ $parent_slug ], $new_sub_menu ); 1529 } else { 1530 $position = absint( $position ); 1531 // Grab all of the items before the insertion point. 1532 $before_items = array_slice( $submenu[ $parent_slug ], 0, $position, true ); 1533 // Grab all of the items after the insertion point. 1534 $after_items = array_slice( $submenu[ $parent_slug ], $position, null, true ); 1535 // Add the new item. 1536 $before_items[] = $new_sub_menu; 1537 // Merge the items. 1538 $submenu[ $parent_slug ] = array_merge( $before_items, $after_items ); 1539 } 1540 } 1541 1542 // Sort the parent array. 1543 ksort( $submenu[ $parent_slug ] ); 1544 1545 $hookname = get_plugin_page_hookname( $menu_slug, $parent_slug ); 1546 if ( ! empty( $callback ) && ! empty( $hookname ) ) { 1547 add_action( $hookname, $callback ); 1548 } 1549 1550 $_registered_pages[ $hookname ] = true; 1551 1552 /* 1553 * Backward-compatibility for plugins using add_management_page(). 1554 * See wp-admin/admin.php for redirect from edit.php to tools.php. 1555 */ 1556 if ( 'tools.php' === $parent_slug ) { 1557 $_registered_pages[ get_plugin_page_hookname( $menu_slug, 'edit.php' ) ] = true; 1558 } 1559 1560 // No parent as top level. 1561 $_parent_pages[ $menu_slug ] = $parent_slug; 1562 1563 return $hookname; 1564 } 1565 1566 /** 1567 * Adds a submenu page to the Tools main menu. 1568 * 1569 * This function takes a capability which will be used to determine whether 1570 * or not a page is included in the menu. 1571 * 1572 * The function which is hooked in to handle the output of the page must check 1573 * that the user has the required capability as well. 1574 * 1575 * @since 1.5.0 1576 * @since 5.3.0 Added the `$position` parameter. 1577 * 1578 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1579 * @param string $menu_title The text to be used for the menu. 1580 * @param string $capability The capability required for this menu to be displayed to the user. 1581 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1582 * @param callable $callback Optional. The function to be called to output the content for this page. 1583 * @param int $position Optional. The position in the menu order this item should appear. 1584 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1585 */ 1586 function add_management_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1587 return add_submenu_page( 'tools.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1588 } 1589 1590 /** 1591 * Adds a submenu page to the Settings main menu. 1592 * 1593 * This function takes a capability which will be used to determine whether 1594 * or not a page is included in the menu. 1595 * 1596 * The function which is hooked in to handle the output of the page must check 1597 * that the user has the required capability as well. 1598 * 1599 * @since 1.5.0 1600 * @since 5.3.0 Added the `$position` parameter. 1601 * 1602 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1603 * @param string $menu_title The text to be used for the menu. 1604 * @param string $capability The capability required for this menu to be displayed to the user. 1605 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1606 * @param callable $callback Optional. The function to be called to output the content for this page. 1607 * @param int $position Optional. The position in the menu order this item should appear. 1608 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1609 */ 1610 function add_options_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1611 return add_submenu_page( 'options-general.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1612 } 1613 1614 /** 1615 * Adds a submenu page to the Appearance main menu. 1616 * 1617 * This function takes a capability which will be used to determine whether 1618 * or not a page is included in the menu. 1619 * 1620 * The function which is hooked in to handle the output of the page must check 1621 * that the user has the required capability as well. 1622 * 1623 * @since 2.0.0 1624 * @since 5.3.0 Added the `$position` parameter. 1625 * 1626 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1627 * @param string $menu_title The text to be used for the menu. 1628 * @param string $capability The capability required for this menu to be displayed to the user. 1629 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1630 * @param callable $callback Optional. The function to be called to output the content for this page. 1631 * @param int $position Optional. The position in the menu order this item should appear. 1632 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1633 */ 1634 function add_theme_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1635 return add_submenu_page( 'themes.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1636 } 1637 1638 /** 1639 * Adds a submenu page to the Plugins main menu. 1640 * 1641 * This function takes a capability which will be used to determine whether 1642 * or not a page is included in the menu. 1643 * 1644 * The function which is hooked in to handle the output of the page must check 1645 * that the user has the required capability as well. 1646 * 1647 * @since 3.0.0 1648 * @since 5.3.0 Added the `$position` parameter. 1649 * 1650 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1651 * @param string $menu_title The text to be used for the menu. 1652 * @param string $capability The capability required for this menu to be displayed to the user. 1653 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1654 * @param callable $callback Optional. The function to be called to output the content for this page. 1655 * @param int $position Optional. The position in the menu order this item should appear. 1656 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1657 */ 1658 function add_plugins_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1659 return add_submenu_page( 'plugins.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1660 } 1661 1662 /** 1663 * Adds a submenu page to the Users/Profile main menu. 1664 * 1665 * This function takes a capability which will be used to determine whether 1666 * or not a page is included in the menu. 1667 * 1668 * The function which is hooked in to handle the output of the page must check 1669 * that the user has the required capability as well. 1670 * 1671 * @since 2.1.3 1672 * @since 5.3.0 Added the `$position` parameter. 1673 * 1674 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1675 * @param string $menu_title The text to be used for the menu. 1676 * @param string $capability The capability required for this menu to be displayed to the user. 1677 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1678 * @param callable $callback Optional. The function to be called to output the content for this page. 1679 * @param int $position Optional. The position in the menu order this item should appear. 1680 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1681 */ 1682 function add_users_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1683 if ( current_user_can( 'edit_users' ) ) { 1684 $parent = 'users.php'; 1685 } else { 1686 $parent = 'profile.php'; 1687 } 1688 return add_submenu_page( $parent, $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1689 } 1690 1691 /** 1692 * Adds a submenu page to the Dashboard main menu. 1693 * 1694 * This function takes a capability which will be used to determine whether 1695 * or not a page is included in the menu. 1696 * 1697 * The function which is hooked in to handle the output of the page must check 1698 * that the user has the required capability as well. 1699 * 1700 * @since 2.7.0 1701 * @since 5.3.0 Added the `$position` parameter. 1702 * 1703 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1704 * @param string $menu_title The text to be used for the menu. 1705 * @param string $capability The capability required for this menu to be displayed to the user. 1706 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1707 * @param callable $callback Optional. The function to be called to output the content for this page. 1708 * @param int $position Optional. The position in the menu order this item should appear. 1709 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1710 */ 1711 function add_dashboard_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1712 return add_submenu_page( 'index.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1713 } 1714 1715 /** 1716 * Adds a submenu page to the Posts main menu. 1717 * 1718 * This function takes a capability which will be used to determine whether 1719 * or not a page is included in the menu. 1720 * 1721 * The function which is hooked in to handle the output of the page must check 1722 * that the user has the required capability as well. 1723 * 1724 * @since 2.7.0 1725 * @since 5.3.0 Added the `$position` parameter. 1726 * 1727 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1728 * @param string $menu_title The text to be used for the menu. 1729 * @param string $capability The capability required for this menu to be displayed to the user. 1730 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1731 * @param callable $callback Optional. The function to be called to output the content for this page. 1732 * @param int $position Optional. The position in the menu order this item should appear. 1733 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1734 */ 1735 function add_posts_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1736 return add_submenu_page( 'edit.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1737 } 1738 1739 /** 1740 * Adds a submenu page to the Media main menu. 1741 * 1742 * This function takes a capability which will be used to determine whether 1743 * or not a page is included in the menu. 1744 * 1745 * The function which is hooked in to handle the output of the page must check 1746 * that the user has the required capability as well. 1747 * 1748 * @since 2.7.0 1749 * @since 5.3.0 Added the `$position` parameter. 1750 * 1751 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1752 * @param string $menu_title The text to be used for the menu. 1753 * @param string $capability The capability required for this menu to be displayed to the user. 1754 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1755 * @param callable $callback Optional. The function to be called to output the content for this page. 1756 * @param int $position Optional. The position in the menu order this item should appear. 1757 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1758 */ 1759 function add_media_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1760 return add_submenu_page( 'upload.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1761 } 1762 1763 /** 1764 * Adds a submenu page to the Links main menu. 1765 * 1766 * This function takes a capability which will be used to determine whether 1767 * or not a page is included in the menu. 1768 * 1769 * The function which is hooked in to handle the output of the page must check 1770 * that the user has the required capability as well. 1771 * 1772 * @since 2.7.0 1773 * @since 5.3.0 Added the `$position` parameter. 1774 * 1775 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1776 * @param string $menu_title The text to be used for the menu. 1777 * @param string $capability The capability required for this menu to be displayed to the user. 1778 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1779 * @param callable $callback Optional. The function to be called to output the content for this page. 1780 * @param int $position Optional. The position in the menu order this item should appear. 1781 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1782 */ 1783 function add_links_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1784 return add_submenu_page( 'link-manager.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1785 } 1786 1787 /** 1788 * Adds a submenu page to the Pages main menu. 1789 * 1790 * This function takes a capability which will be used to determine whether 1791 * or not a page is included in the menu. 1792 * 1793 * The function which is hooked in to handle the output of the page must check 1794 * that the user has the required capability as well. 1795 * 1796 * @since 2.7.0 1797 * @since 5.3.0 Added the `$position` parameter. 1798 * 1799 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1800 * @param string $menu_title The text to be used for the menu. 1801 * @param string $capability The capability required for this menu to be displayed to the user. 1802 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1803 * @param callable $callback Optional. The function to be called to output the content for this page. 1804 * @param int $position Optional. The position in the menu order this item should appear. 1805 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1806 */ 1807 function add_pages_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1808 return add_submenu_page( 'edit.php?post_type=page', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1809 } 1810 1811 /** 1812 * Adds a submenu page to the Comments main menu. 1813 * 1814 * This function takes a capability which will be used to determine whether 1815 * or not a page is included in the menu. 1816 * 1817 * The function which is hooked in to handle the output of the page must check 1818 * that the user has the required capability as well. 1819 * 1820 * @since 2.7.0 1821 * @since 5.3.0 Added the `$position` parameter. 1822 * 1823 * @param string $page_title The text to be displayed in the title tags of the page when the menu is selected. 1824 * @param string $menu_title The text to be used for the menu. 1825 * @param string $capability The capability required for this menu to be displayed to the user. 1826 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1827 * @param callable $callback Optional. The function to be called to output the content for this page. 1828 * @param int $position Optional. The position in the menu order this item should appear. 1829 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required. 1830 */ 1831 function add_comments_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) { 1832 return add_submenu_page( 'edit-comments.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position ); 1833 } 1834 1835 /** 1836 * Removes a top-level admin menu. 1837 * 1838 * Example usage: 1839 * 1840 * - `remove_menu_page( 'tools.php' )` 1841 * - `remove_menu_page( 'plugin_menu_slug' )` 1842 * 1843 * @since 3.1.0 1844 * 1845 * @global array $menu 1846 * 1847 * @param string $menu_slug The slug of the menu. 1848 * @return array|false The removed menu on success, false if not found. 1849 */ 1850 function remove_menu_page( $menu_slug ) { 1851 global $menu; 1852 1853 foreach ( $menu as $i => $item ) { 1854 if ( $menu_slug === $item[2] ) { 1855 unset( $menu[ $i ] ); 1856 return $item; 1857 } 1858 } 1859 1860 return false; 1861 } 1862 1863 /** 1864 * Removes an admin submenu. 1865 * 1866 * Example usage: 1867 * 1868 * - `remove_submenu_page( 'themes.php', 'nav-menus.php' )` 1869 * - `remove_submenu_page( 'tools.php', 'plugin_submenu_slug' )` 1870 * - `remove_submenu_page( 'plugin_menu_slug', 'plugin_submenu_slug' )` 1871 * 1872 * @since 3.1.0 1873 * 1874 * @global array $submenu 1875 * 1876 * @param string $menu_slug The slug for the parent menu. 1877 * @param string $submenu_slug The slug of the submenu. 1878 * @return array|false The removed submenu on success, false if not found. 1879 */ 1880 function remove_submenu_page( $menu_slug, $submenu_slug ) { 1881 global $submenu; 1882 1883 if ( ! isset( $submenu[ $menu_slug ] ) ) { 1884 return false; 1885 } 1886 1887 foreach ( $submenu[ $menu_slug ] as $i => $item ) { 1888 if ( $submenu_slug === $item[2] ) { 1889 unset( $submenu[ $menu_slug ][ $i ] ); 1890 return $item; 1891 } 1892 } 1893 1894 return false; 1895 } 1896 1897 /** 1898 * Gets the URL to access a particular menu page based on the slug it was registered with. 1899 * 1900 * If the slug hasn't been registered properly, no URL will be returned. 1901 * 1902 * @since 3.0.0 1903 * 1904 * @global array $_parent_pages 1905 * 1906 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu). 1907 * @param bool $display Optional. Whether or not to display the URL. Default true. 1908 * @return string The menu page URL. 1909 */ 1910 function menu_page_url( $menu_slug, $display = true ) { 1911 global $_parent_pages; 1912 1913 if ( isset( $_parent_pages[ $menu_slug ] ) ) { 1914 $parent_slug = $_parent_pages[ $menu_slug ]; 1915 1916 if ( $parent_slug && ! isset( $_parent_pages[ $parent_slug ] ) ) { 1917 $url = admin_url( add_query_arg( 'page', $menu_slug, $parent_slug ) ); 1918 } else { 1919 $url = admin_url( 'admin.php?page=' . $menu_slug ); 1920 } 1921 } else { 1922 $url = ''; 1923 } 1924 1925 $url = esc_url( $url ); 1926 1927 if ( $display ) { 1928 echo $url; 1929 } 1930 1931 return $url; 1932 } 1933 1934 // 1935 // Pluggable Menu Support -- Private. 1936 // 1937 /** 1938 * Gets the parent file of the current admin page. 1939 * 1940 * @since 1.5.0 1941 * 1942 * @global string $parent_file 1943 * @global array $menu 1944 * @global array $submenu 1945 * @global string $pagenow The filename of the current screen. 1946 * @global string $typenow The post type of the current screen. 1947 * @global string $plugin_page 1948 * @global array $_wp_real_parent_file 1949 * @global array $_wp_menu_nopriv 1950 * @global array $_wp_submenu_nopriv 1951 * 1952 * @param string $parent_page Optional. The slug name for the parent menu (or the file name 1953 * of a standard WordPress admin page). Default empty string. 1954 * @return string The parent file of the current admin page. 1955 */ 1956 function get_admin_page_parent( $parent_page = '' ) { 1957 global $parent_file, $menu, $submenu, $pagenow, $typenow, 1958 $plugin_page, $_wp_real_parent_file, $_wp_menu_nopriv, $_wp_submenu_nopriv; 1959 1960 if ( ! empty( $parent_page ) && 'admin.php' !== $parent_page ) { 1961 if ( isset( $_wp_real_parent_file[ $parent_page ] ) ) { 1962 $parent_page = $_wp_real_parent_file[ $parent_page ]; 1963 } 1964 1965 return $parent_page; 1966 } 1967 1968 if ( 'admin.php' === $pagenow && isset( $plugin_page ) ) { 1969 foreach ( (array) $menu as $parent_menu ) { 1970 if ( $parent_menu[2] === $plugin_page ) { 1971 $parent_file = $plugin_page; 1972 1973 if ( isset( $_wp_real_parent_file[ $parent_file ] ) ) { 1974 $parent_file = $_wp_real_parent_file[ $parent_file ]; 1975 } 1976 1977 return $parent_file; 1978 } 1979 } 1980 if ( isset( $_wp_menu_nopriv[ $plugin_page ] ) ) { 1981 $parent_file = $plugin_page; 1982 1983 if ( isset( $_wp_real_parent_file[ $parent_file ] ) ) { 1984 $parent_file = $_wp_real_parent_file[ $parent_file ]; 1985 } 1986 1987 return $parent_file; 1988 } 1989 } 1990 1991 if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $pagenow ][ $plugin_page ] ) ) { 1992 $parent_file = $pagenow; 1993 1994 if ( isset( $_wp_real_parent_file[ $parent_file ] ) ) { 1995 $parent_file = $_wp_real_parent_file[ $parent_file ]; 1996 } 1997 1998 return $parent_file; 1999 } 2000 2001 foreach ( array_keys( (array) $submenu ) as $parent_page ) { 2002 foreach ( $submenu[ $parent_page ] as $submenu_array ) { 2003 if ( isset( $_wp_real_parent_file[ $parent_page ] ) ) { 2004 $parent_page = $_wp_real_parent_file[ $parent_page ]; 2005 } 2006 2007 if ( ! empty( $typenow ) && "$pagenow?post_type=$typenow" === $submenu_array[2] ) { 2008 $parent_file = $parent_page; 2009 return $parent_page; 2010 } elseif ( empty( $typenow ) && $pagenow === $submenu_array[2] 2011 && ( empty( $parent_file ) || ! str_contains( $parent_file, '?' ) ) 2012 ) { 2013 $parent_file = $parent_page; 2014 return $parent_page; 2015 } elseif ( isset( $plugin_page ) && $plugin_page === $submenu_array[2] ) { 2016 $parent_file = $parent_page; 2017 return $parent_page; 2018 } 2019 } 2020 } 2021 2022 if ( empty( $parent_file ) ) { 2023 $parent_file = ''; 2024 } 2025 return ''; 2026 } 2027 2028 /** 2029 * Gets the title of the current admin page. 2030 * 2031 * @since 1.5.0 2032 * 2033 * @global string $title The title of the current screen. 2034 * @global array $menu 2035 * @global array $submenu 2036 * @global string $pagenow The filename of the current screen. 2037 * @global string $typenow The post type of the current screen. 2038 * @global string $plugin_page 2039 * 2040 * @return string The title of the current admin page. 2041 */ 2042 function get_admin_page_title() { 2043 global $title, $menu, $submenu, $pagenow, $typenow, $plugin_page; 2044 2045 if ( ! empty( $title ) ) { 2046 return $title; 2047 } 2048 2049 $hook = get_plugin_page_hook( $plugin_page, $pagenow ); 2050 2051 $parent = get_admin_page_parent(); 2052 $parent1 = $parent; 2053 2054 if ( empty( $parent ) ) { 2055 foreach ( (array) $menu as $menu_array ) { 2056 if ( isset( $menu_array[3] ) ) { 2057 if ( $menu_array[2] === $pagenow ) { 2058 $title = $menu_array[3]; 2059 return $menu_array[3]; 2060 } elseif ( isset( $plugin_page ) && $plugin_page === $menu_array[2] && $hook === $menu_array[5] ) { 2061 $title = $menu_array[3]; 2062 return $menu_array[3]; 2063 } 2064 } else { 2065 $title = $menu_array[0]; 2066 return $title; 2067 } 2068 } 2069 } else { 2070 foreach ( array_keys( $submenu ) as $parent ) { 2071 foreach ( $submenu[ $parent ] as $submenu_array ) { 2072 if ( isset( $plugin_page ) 2073 && $plugin_page === $submenu_array[2] 2074 && ( $pagenow === $parent 2075 || $plugin_page === $parent 2076 || $plugin_page === $hook 2077 || 'admin.php' === $pagenow && $parent1 !== $submenu_array[2] 2078 || ! empty( $typenow ) && "$pagenow?post_type=$typenow" === $parent ) 2079 ) { 2080 $title = $submenu_array[3]; 2081 return $submenu_array[3]; 2082 } 2083 2084 if ( $submenu_array[2] !== $pagenow || isset( $_GET['page'] ) ) { // Not the current page. 2085 continue; 2086 } 2087 2088 if ( isset( $submenu_array[3] ) ) { 2089 $title = $submenu_array[3]; 2090 return $submenu_array[3]; 2091 } else { 2092 $title = $submenu_array[0]; 2093 return $title; 2094 } 2095 } 2096 } 2097 if ( empty( $title ) ) { 2098 foreach ( $menu as $menu_array ) { 2099 if ( isset( $plugin_page ) 2100 && $plugin_page === $menu_array[2] 2101 && 'admin.php' === $pagenow 2102 && $parent1 === $menu_array[2] 2103 ) { 2104 $title = $menu_array[3]; 2105 return $menu_array[3]; 2106 } 2107 } 2108 } 2109 } 2110 2111 return $title; 2112 } 2113 2114 /** 2115 * Gets the hook attached to the administrative page of a plugin. 2116 * 2117 * @since 1.5.0 2118 * 2119 * @param string $plugin_page The slug name of the plugin page. 2120 * @param string $parent_page The slug name for the parent menu (or the file name of a standard 2121 * WordPress admin page). 2122 * @return string|null Hook attached to the plugin page, null otherwise. 2123 */ 2124 function get_plugin_page_hook( $plugin_page, $parent_page ) { 2125 $hook = get_plugin_page_hookname( $plugin_page, $parent_page ); 2126 if ( has_action( $hook ) ) { 2127 return $hook; 2128 } else { 2129 return null; 2130 } 2131 } 2132 2133 /** 2134 * Gets the hook name for the administrative page of a plugin. 2135 * 2136 * @since 1.5.0 2137 * 2138 * @global array $admin_page_hooks 2139 * 2140 * @param string $plugin_page The slug name of the plugin page. 2141 * @param string $parent_page The slug name for the parent menu (or the file name of a standard 2142 * WordPress admin page). 2143 * @return string Hook name for the plugin page. 2144 */ 2145 function get_plugin_page_hookname( $plugin_page, $parent_page ) { 2146 global $admin_page_hooks; 2147 2148 $parent = get_admin_page_parent( $parent_page ); 2149 2150 $page_type = 'admin'; 2151 if ( empty( $parent_page ) || 'admin.php' === $parent_page || isset( $admin_page_hooks[ $plugin_page ] ) ) { 2152 if ( isset( $admin_page_hooks[ $plugin_page ] ) ) { 2153 $page_type = 'toplevel'; 2154 } elseif ( isset( $admin_page_hooks[ $parent ] ) ) { 2155 $page_type = $admin_page_hooks[ $parent ]; 2156 } 2157 } elseif ( isset( $admin_page_hooks[ $parent ] ) ) { 2158 $page_type = $admin_page_hooks[ $parent ]; 2159 } 2160 2161 $plugin_name = preg_replace( '!\.php!', '', $plugin_page ); 2162 2163 return $page_type . '_page_' . $plugin_name; 2164 } 2165 2166 /** 2167 * Determines whether the current user can access the current admin page. 2168 * 2169 * @since 1.5.0 2170 * 2171 * @global string $pagenow The filename of the current screen. 2172 * @global array $menu 2173 * @global array $submenu 2174 * @global array $_wp_menu_nopriv 2175 * @global array $_wp_submenu_nopriv 2176 * @global string $plugin_page 2177 * @global array $_registered_pages 2178 * 2179 * @return bool True if the current user can access the admin page, false otherwise. 2180 */ 2181 function user_can_access_admin_page() { 2182 global $pagenow, $menu, $submenu, $_wp_menu_nopriv, $_wp_submenu_nopriv, 2183 $plugin_page, $_registered_pages; 2184 2185 $parent = get_admin_page_parent(); 2186 2187 if ( ! isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $parent ][ $pagenow ] ) ) { 2188 return false; 2189 } 2190 2191 if ( isset( $plugin_page ) ) { 2192 if ( isset( $_wp_submenu_nopriv[ $parent ][ $plugin_page ] ) ) { 2193 return false; 2194 } 2195 2196 $hookname = get_plugin_page_hookname( $plugin_page, $parent ); 2197 2198 if ( ! isset( $_registered_pages[ $hookname ] ) ) { 2199 return false; 2200 } 2201 } 2202 2203 if ( empty( $parent ) ) { 2204 if ( isset( $_wp_menu_nopriv[ $pagenow ] ) ) { 2205 return false; 2206 } 2207 if ( isset( $_wp_submenu_nopriv[ $pagenow ][ $pagenow ] ) ) { 2208 return false; 2209 } 2210 if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $pagenow ][ $plugin_page ] ) ) { 2211 return false; 2212 } 2213 if ( isset( $plugin_page ) && isset( $_wp_menu_nopriv[ $plugin_page ] ) ) { 2214 return false; 2215 } 2216 2217 foreach ( array_keys( $_wp_submenu_nopriv ) as $key ) { 2218 if ( isset( $_wp_submenu_nopriv[ $key ][ $pagenow ] ) ) { 2219 return false; 2220 } 2221 if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $key ][ $plugin_page ] ) ) { 2222 return false; 2223 } 2224 } 2225 2226 return true; 2227 } 2228 2229 if ( isset( $plugin_page ) && $plugin_page === $parent && isset( $_wp_menu_nopriv[ $plugin_page ] ) ) { 2230 return false; 2231 } 2232 2233 if ( isset( $submenu[ $parent ] ) ) { 2234 foreach ( $submenu[ $parent ] as $submenu_array ) { 2235 if ( isset( $plugin_page ) && $submenu_array[2] === $plugin_page ) { 2236 return current_user_can( $submenu_array[1] ); 2237 } elseif ( $submenu_array[2] === $pagenow ) { 2238 return current_user_can( $submenu_array[1] ); 2239 } 2240 } 2241 } 2242 2243 foreach ( $menu as $menu_array ) { 2244 if ( $menu_array[2] === $parent ) { 2245 return current_user_can( $menu_array[1] ); 2246 } 2247 } 2248 2249 return true; 2250 } 2251 2252 /* Allowed list functions */ 2253 2254 /** 2255 * Refreshes the value of the allowed options list available via the 'allowed_options' hook. 2256 * 2257 * See the {@see 'allowed_options'} filter. 2258 * 2259 * @since 2.7.0 2260 * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`. 2261 * Please consider writing more inclusive code. 2262 * 2263 * @global array $new_allowed_options 2264 * 2265 * @param array $options 2266 * @return array 2267 */ 2268 function option_update_filter( $options ) { 2269 global $new_allowed_options; 2270 2271 if ( is_array( $new_allowed_options ) ) { 2272 $options = add_allowed_options( $new_allowed_options, $options ); 2273 } 2274 2275 return $options; 2276 } 2277 2278 /** 2279 * Adds an array of options to the list of allowed options. 2280 * 2281 * @since 5.5.0 2282 * 2283 * @global array $allowed_options 2284 * 2285 * @param array $new_options 2286 * @param string|array $options 2287 * @return array 2288 */ 2289 function add_allowed_options( $new_options, $options = '' ) { 2290 if ( '' === $options ) { 2291 global $allowed_options; 2292 } else { 2293 $allowed_options = $options; 2294 } 2295 2296 foreach ( $new_options as $page => $keys ) { 2297 foreach ( $keys as $key ) { 2298 if ( ! isset( $allowed_options[ $page ] ) || ! is_array( $allowed_options[ $page ] ) ) { 2299 $allowed_options[ $page ] = array(); 2300 $allowed_options[ $page ][] = $key; 2301 } else { 2302 $pos = array_search( $key, $allowed_options[ $page ], true ); 2303 if ( false === $pos ) { 2304 $allowed_options[ $page ][] = $key; 2305 } 2306 } 2307 } 2308 } 2309 2310 return $allowed_options; 2311 } 2312 2313 /** 2314 * Removes a list of options from the allowed options list. 2315 * 2316 * @since 5.5.0 2317 * 2318 * @global array $allowed_options 2319 * 2320 * @param array $del_options 2321 * @param string|array $options 2322 * @return array 2323 */ 2324 function remove_allowed_options( $del_options, $options = '' ) { 2325 if ( '' === $options ) { 2326 global $allowed_options; 2327 } else { 2328 $allowed_options = $options; 2329 } 2330 2331 foreach ( $del_options as $page => $keys ) { 2332 foreach ( $keys as $key ) { 2333 if ( isset( $allowed_options[ $page ] ) && is_array( $allowed_options[ $page ] ) ) { 2334 $pos = array_search( $key, $allowed_options[ $page ], true ); 2335 if ( false !== $pos ) { 2336 unset( $allowed_options[ $page ][ $pos ] ); 2337 } 2338 } 2339 } 2340 } 2341 2342 return $allowed_options; 2343 } 2344 2345 /** 2346 * Outputs nonce, action, and option_page fields for a settings page. 2347 * 2348 * @since 2.7.0 2349 * 2350 * @param string $option_group A settings group name. This should match the group name 2351 * used in register_setting(). 2352 */ 2353 function settings_fields( $option_group ) { 2354 echo "<input type='hidden' name='option_page' value='" . esc_attr( $option_group ) . "' />"; 2355 echo '<input type="hidden" name="action" value="update" />'; 2356 wp_nonce_field( "$option_group-options" ); 2357 } 2358 2359 /** 2360 * Clears the plugins cache used by get_plugins() and by default, the plugin updates cache. 2361 * 2362 * @since 3.7.0 2363 * 2364 * @param bool $clear_update_cache Whether to clear the plugin updates cache. Default true. 2365 */ 2366 function wp_clean_plugins_cache( $clear_update_cache = true ) { 2367 if ( $clear_update_cache ) { 2368 delete_site_transient( 'update_plugins' ); 2369 } 2370 wp_cache_delete( 'plugins', 'plugins' ); 2371 } 2372 2373 /** 2374 * Loads a given plugin attempt to generate errors. 2375 * 2376 * @since 3.0.0 2377 * @since 4.4.0 Function was moved into the `wp-admin/includes/plugin.php` file. 2378 * 2379 * @param string $plugin Path to the plugin file relative to the plugins directory. 2380 */ 2381 function plugin_sandbox_scrape( $plugin ) { 2382 if ( ! defined( 'WP_SANDBOX_SCRAPING' ) ) { 2383 define( 'WP_SANDBOX_SCRAPING', true ); 2384 } 2385 2386 wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin ); 2387 include_once WP_PLUGIN_DIR . '/' . $plugin; 2388 } 2389 2390 /** 2391 * Declares a helper function for adding content to the Privacy Policy Guide. 2392 * 2393 * Plugins and themes should suggest text for inclusion in the site's privacy policy. 2394 * The suggested text should contain information about any functionality that affects user privacy, 2395 * and will be shown on the Privacy Policy Guide screen. 2396 * 2397 * A plugin or theme can use this function multiple times as long as it will help to better present 2398 * the suggested policy content. For example modular plugins such as WooCommerse or Jetpack 2399 * can add or remove suggested content depending on the modules/extensions that are enabled. 2400 * For more information see the Plugin Handbook: 2401 * https://developer.wordpress.org/plugins/privacy/suggesting-text-for-the-site-privacy-policy/. 2402 * 2403 * The HTML contents of the `$policy_text` supports use of a specialized `.privacy-policy-tutorial` 2404 * CSS class which can be used to provide supplemental information. Any content contained within 2405 * HTML elements that have the `.privacy-policy-tutorial` CSS class applied will be omitted 2406 * from the clipboard when the section content is copied. 2407 * 2408 * Intended for use with the `'admin_init'` action. 2409 * 2410 * @since 4.9.6 2411 * 2412 * @param string $plugin_name The name of the plugin or theme that is suggesting content 2413 * for the site's privacy policy. 2414 * @param string $policy_text The suggested content for inclusion in the policy. 2415 */ 2416 function wp_add_privacy_policy_content( $plugin_name, $policy_text ) { 2417 if ( ! is_admin() ) { 2418 _doing_it_wrong( 2419 __FUNCTION__, 2420 sprintf( 2421 /* translators: %s: admin_init */ 2422 __( 'The suggested privacy policy content should be added only in wp-admin by using the %s (or later) action.' ), 2423 '<code>admin_init</code>' 2424 ), 2425 '4.9.7' 2426 ); 2427 return; 2428 } elseif ( ! doing_action( 'admin_init' ) && ! did_action( 'admin_init' ) ) { 2429 _doing_it_wrong( 2430 __FUNCTION__, 2431 sprintf( 2432 /* translators: %s: admin_init */ 2433 __( 'The suggested privacy policy content should be added by using the %s (or later) action. Please see the inline documentation.' ), 2434 '<code>admin_init</code>' 2435 ), 2436 '4.9.7' 2437 ); 2438 return; 2439 } 2440 2441 if ( ! class_exists( 'WP_Privacy_Policy_Content' ) ) { 2442 require_once ABSPATH . 'wp-admin/includes/class-wp-privacy-policy-content.php'; 2443 } 2444 2445 WP_Privacy_Policy_Content::add( $plugin_name, $policy_text ); 2446 } 2447 2448 /** 2449 * Determines whether a plugin is technically active but was paused while 2450 * loading. 2451 * 2452 * For more information on this and similar theme functions, check out 2453 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 2454 * Conditional Tags} article in the Theme Developer Handbook. 2455 * 2456 * @since 5.2.0 2457 * 2458 * @global WP_Paused_Extensions_Storage $_paused_plugins 2459 * 2460 * @param string $plugin Path to the plugin file relative to the plugins directory. 2461 * @return bool True, if in the list of paused plugins. False, if not in the list. 2462 */ 2463 function is_plugin_paused( $plugin ) { 2464 if ( ! isset( $GLOBALS['_paused_plugins'] ) ) { 2465 return false; 2466 } 2467 2468 if ( ! is_plugin_active( $plugin ) ) { 2469 return false; 2470 } 2471 2472 list( $plugin ) = explode( '/', $plugin ); 2473 2474 return array_key_exists( $plugin, $GLOBALS['_paused_plugins'] ); 2475 } 2476 2477 /** 2478 * Gets the error that was recorded for a paused plugin. 2479 * 2480 * @since 5.2.0 2481 * 2482 * @global WP_Paused_Extensions_Storage $_paused_plugins 2483 * 2484 * @param string $plugin Path to the plugin file relative to the plugins directory. 2485 * @return array|false Array of error information as returned by `error_get_last()`, 2486 * or false if none was recorded. 2487 */ 2488 function wp_get_plugin_error( $plugin ) { 2489 if ( ! isset( $GLOBALS['_paused_plugins'] ) ) { 2490 return false; 2491 } 2492 2493 list( $plugin ) = explode( '/', $plugin ); 2494 2495 if ( ! array_key_exists( $plugin, $GLOBALS['_paused_plugins'] ) ) { 2496 return false; 2497 } 2498 2499 return $GLOBALS['_paused_plugins'][ $plugin ]; 2500 } 2501 2502 /** 2503 * Tries to resume a single plugin. 2504 * 2505 * If a redirect was provided, we first ensure the plugin does not throw fatal 2506 * errors anymore. 2507 * 2508 * The way it works is by setting the redirection to the error before trying to 2509 * include the plugin file. If the plugin fails, then the redirection will not 2510 * be overwritten with the success message and the plugin will not be resumed. 2511 * 2512 * @since 5.2.0 2513 * 2514 * @param string $plugin Single plugin to resume. 2515 * @param string $redirect Optional. URL to redirect to. Default empty string. 2516 * @return true|WP_Error True on success, false if `$plugin` was not paused, 2517 * `WP_Error` on failure. 2518 */ 2519 function resume_plugin( $plugin, $redirect = '' ) { 2520 /* 2521 * We'll override this later if the plugin could be resumed without 2522 * creating a fatal error. 2523 */ 2524 if ( ! empty( $redirect ) ) { 2525 wp_redirect( 2526 add_query_arg( 2527 '_error_nonce', 2528 wp_create_nonce( 'plugin-resume-error_' . $plugin ), 2529 $redirect 2530 ) 2531 ); 2532 2533 // Load the plugin to test whether it throws a fatal error. 2534 ob_start(); 2535 plugin_sandbox_scrape( $plugin ); 2536 ob_clean(); 2537 } 2538 2539 list( $extension ) = explode( '/', $plugin ); 2540 2541 $result = wp_paused_plugins()->delete( $extension ); 2542 2543 if ( ! $result ) { 2544 return new WP_Error( 2545 'could_not_resume_plugin', 2546 __( 'Could not resume the plugin.' ) 2547 ); 2548 } 2549 2550 return true; 2551 } 2552 2553 /** 2554 * Renders an admin notice in case some plugins have been paused due to errors. 2555 * 2556 * @since 5.2.0 2557 * 2558 * @global string $pagenow The filename of the current screen. 2559 * @global WP_Paused_Extensions_Storage $_paused_plugins 2560 */ 2561 function paused_plugins_notice() { 2562 if ( 'plugins.php' === $GLOBALS['pagenow'] ) { 2563 return; 2564 } 2565 2566 if ( ! current_user_can( 'resume_plugins' ) ) { 2567 return; 2568 } 2569 2570 if ( ! isset( $GLOBALS['_paused_plugins'] ) || empty( $GLOBALS['_paused_plugins'] ) ) { 2571 return; 2572 } 2573 2574 $message = sprintf( 2575 '<strong>%s</strong><br>%s</p><p><a href="%s">%s</a>', 2576 __( 'One or more plugins failed to load properly.' ), 2577 __( 'You can find more details and make changes on the Plugins screen.' ), 2578 esc_url( admin_url( 'plugins.php?plugin_status=paused' ) ), 2579 __( 'Go to the Plugins screen' ) 2580 ); 2581 wp_admin_notice( 2582 $message, 2583 array( 'type' => 'error' ) 2584 ); 2585 } 2586 2587 /** 2588 * Renders an admin notice when a plugin was deactivated during an update. 2589 * 2590 * Displays an admin notice in case a plugin has been deactivated during an 2591 * upgrade due to incompatibility with the current version of WordPress. 2592 * 2593 * @since 5.8.0 2594 * @access private 2595 * 2596 * @global string $pagenow The filename of the current screen. 2597 * @global string $wp_version The WordPress version string. 2598 */ 2599 function deactivated_plugins_notice() { 2600 if ( 'plugins.php' === $GLOBALS['pagenow'] ) { 2601 return; 2602 } 2603 2604 if ( ! current_user_can( 'activate_plugins' ) ) { 2605 return; 2606 } 2607 2608 $blog_deactivated_plugins = get_option( 'wp_force_deactivated_plugins' ); 2609 $site_deactivated_plugins = array(); 2610 2611 if ( false === $blog_deactivated_plugins ) { 2612 // Option not in database, add an empty array to avoid extra DB queries on subsequent loads. 2613 update_option( 'wp_force_deactivated_plugins', array(), false ); 2614 } 2615 2616 if ( is_multisite() ) { 2617 $site_deactivated_plugins = get_site_option( 'wp_force_deactivated_plugins' ); 2618 if ( false === $site_deactivated_plugins ) { 2619 // Option not in database, add an empty array to avoid extra DB queries on subsequent loads. 2620 update_site_option( 'wp_force_deactivated_plugins', array() ); 2621 } 2622 } 2623 2624 if ( empty( $blog_deactivated_plugins ) && empty( $site_deactivated_plugins ) ) { 2625 // No deactivated plugins. 2626 return; 2627 } 2628 2629 $deactivated_plugins = array_merge( $blog_deactivated_plugins, $site_deactivated_plugins ); 2630 2631 foreach ( $deactivated_plugins as $plugin ) { 2632 if ( ! empty( $plugin['version_compatible'] ) && ! empty( $plugin['version_deactivated'] ) ) { 2633 $explanation = sprintf( 2634 /* translators: 1: Name of deactivated plugin, 2: Plugin version deactivated, 3: Current WP version, 4: Compatible plugin version. */ 2635 __( '%1$s %2$s was deactivated due to incompatibility with WordPress %3$s, please upgrade to %1$s %4$s or later.' ), 2636 $plugin['plugin_name'], 2637 $plugin['version_deactivated'], 2638 $GLOBALS['wp_version'], 2639 $plugin['version_compatible'] 2640 ); 2641 } else { 2642 $explanation = sprintf( 2643 /* translators: 1: Name of deactivated plugin, 2: Plugin version deactivated, 3: Current WP version. */ 2644 __( '%1$s %2$s was deactivated due to incompatibility with WordPress %3$s.' ), 2645 $plugin['plugin_name'], 2646 ! empty( $plugin['version_deactivated'] ) ? $plugin['version_deactivated'] : '', 2647 $GLOBALS['wp_version'], 2648 $plugin['version_compatible'] 2649 ); 2650 } 2651 2652 $message = sprintf( 2653 '<strong>%s</strong><br>%s</p><p><a href="%s">%s</a>', 2654 sprintf( 2655 /* translators: %s: Name of deactivated plugin. */ 2656 __( '%s plugin deactivated during WordPress upgrade.' ), 2657 $plugin['plugin_name'] 2658 ), 2659 $explanation, 2660 esc_url( admin_url( 'plugins.php?plugin_status=inactive' ) ), 2661 __( 'Go to the Plugins screen' ) 2662 ); 2663 wp_admin_notice( $message, array( 'type' => 'warning' ) ); 2664 } 2665 2666 // Empty the options. 2667 update_option( 'wp_force_deactivated_plugins', array(), false ); 2668 if ( is_multisite() ) { 2669 update_site_option( 'wp_force_deactivated_plugins', array() ); 2670 } 2671 }
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