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1 <?php 2 /** 3 * Upgrade API: WP_Upgrader class 4 * 5 * Requires skin classes and WP_Upgrader subclasses for backward compatibility. 6 * 7 * @package WordPress 8 * @subpackage Upgrader 9 * @since 2.8.0 10 */ 11 12 /** WP_Upgrader_Skin class */ 13 require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader-skin.php'; 14 15 /** Plugin_Upgrader_Skin class */ 16 require_once ABSPATH . 'wp-admin/includes/class-plugin-upgrader-skin.php'; 17 18 /** Theme_Upgrader_Skin class */ 19 require_once ABSPATH . 'wp-admin/includes/class-theme-upgrader-skin.php'; 20 21 /** Bulk_Upgrader_Skin class */ 22 require_once ABSPATH . 'wp-admin/includes/class-bulk-upgrader-skin.php'; 23 24 /** Bulk_Plugin_Upgrader_Skin class */ 25 require_once ABSPATH . 'wp-admin/includes/class-bulk-plugin-upgrader-skin.php'; 26 27 /** Bulk_Theme_Upgrader_Skin class */ 28 require_once ABSPATH . 'wp-admin/includes/class-bulk-theme-upgrader-skin.php'; 29 30 /** Plugin_Installer_Skin class */ 31 require_once ABSPATH . 'wp-admin/includes/class-plugin-installer-skin.php'; 32 33 /** Theme_Installer_Skin class */ 34 require_once ABSPATH . 'wp-admin/includes/class-theme-installer-skin.php'; 35 36 /** Language_Pack_Upgrader_Skin class */ 37 require_once ABSPATH . 'wp-admin/includes/class-language-pack-upgrader-skin.php'; 38 39 /** Automatic_Upgrader_Skin class */ 40 require_once ABSPATH . 'wp-admin/includes/class-automatic-upgrader-skin.php'; 41 42 /** WP_Ajax_Upgrader_Skin class */ 43 require_once ABSPATH . 'wp-admin/includes/class-wp-ajax-upgrader-skin.php'; 44 45 /** 46 * Core class used for upgrading/installing a local set of files via 47 * the Filesystem Abstraction classes from a Zip file. 48 * 49 * @since 2.8.0 50 */ 51 class WP_Upgrader { 52 53 /** 54 * The error/notification strings used to update the user on the progress. 55 * 56 * @since 2.8.0 57 * @var array $strings 58 */ 59 public $strings = array(); 60 61 /** 62 * The upgrader skin being used. 63 * 64 * @since 2.8.0 65 * @var Automatic_Upgrader_Skin|WP_Upgrader_Skin $skin 66 */ 67 public $skin = null; 68 69 /** 70 * The result of the installation. 71 * 72 * This is set by WP_Upgrader::install_package(), only when the package is installed 73 * successfully. It will then be an array, unless a WP_Error is returned by the 74 * {@see 'upgrader_post_install'} filter. In that case, the WP_Error will be assigned to 75 * it. 76 * 77 * @since 2.8.0 78 * 79 * @var array|WP_Error $result { 80 * @type string $source The full path to the source the files were installed from. 81 * @type string $source_files List of all the files in the source directory. 82 * @type string $destination The full path to the installation destination folder. 83 * @type string $destination_name The name of the destination folder, or empty if `$destination` 84 * and `$local_destination` are the same. 85 * @type string $local_destination The full local path to the destination folder. This is usually 86 * the same as `$destination`. 87 * @type string $remote_destination The full remote path to the destination folder 88 * (i.e., from `$wp_filesystem`). 89 * @type bool $clear_destination Whether the destination folder was cleared. 90 * } 91 */ 92 public $result = array(); 93 94 /** 95 * The total number of updates being performed. 96 * 97 * Set by the bulk update methods. 98 * 99 * @since 3.0.0 100 * @var int $update_count 101 */ 102 public $update_count = 0; 103 104 /** 105 * The current update if multiple updates are being performed. 106 * 107 * Used by the bulk update methods, and incremented for each update. 108 * 109 * @since 3.0.0 110 * @var int 111 */ 112 public $update_current = 0; 113 114 /** 115 * Construct the upgrader with a skin. 116 * 117 * @since 2.8.0 118 * 119 * @param WP_Upgrader_Skin $skin The upgrader skin to use. Default is a WP_Upgrader_Skin 120 * instance. 121 */ 122 public function __construct( $skin = null ) { 123 if ( null === $skin ) { 124 $this->skin = new WP_Upgrader_Skin(); 125 } else { 126 $this->skin = $skin; 127 } 128 } 129 130 /** 131 * Initialize the upgrader. 132 * 133 * This will set the relationship between the skin being used and this upgrader, 134 * and also add the generic strings to `WP_Upgrader::$strings`. 135 * 136 * @since 2.8.0 137 */ 138 public function init() { 139 $this->skin->set_upgrader( $this ); 140 $this->generic_strings(); 141 } 142 143 /** 144 * Add the generic strings to WP_Upgrader::$strings. 145 * 146 * @since 2.8.0 147 */ 148 public function generic_strings() { 149 $this->strings['bad_request'] = __( 'Invalid data provided.' ); 150 $this->strings['fs_unavailable'] = __( 'Could not access filesystem.' ); 151 $this->strings['fs_error'] = __( 'Filesystem error.' ); 152 $this->strings['fs_no_root_dir'] = __( 'Unable to locate WordPress root directory.' ); 153 $this->strings['fs_no_content_dir'] = __( 'Unable to locate WordPress content directory (wp-content).' ); 154 $this->strings['fs_no_plugins_dir'] = __( 'Unable to locate WordPress plugin directory.' ); 155 $this->strings['fs_no_themes_dir'] = __( 'Unable to locate WordPress theme directory.' ); 156 /* translators: %s: Directory name. */ 157 $this->strings['fs_no_folder'] = __( 'Unable to locate needed folder (%s).' ); 158 159 $this->strings['download_failed'] = __( 'Download failed.' ); 160 $this->strings['installing_package'] = __( 'Installing the latest version…' ); 161 $this->strings['no_files'] = __( 'The package contains no files.' ); 162 $this->strings['folder_exists'] = __( 'Destination folder already exists.' ); 163 $this->strings['mkdir_failed'] = __( 'Could not create directory.' ); 164 $this->strings['incompatible_archive'] = __( 'The package could not be installed.' ); 165 $this->strings['files_not_writable'] = __( 'The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.' ); 166 167 $this->strings['maintenance_start'] = __( 'Enabling Maintenance mode…' ); 168 $this->strings['maintenance_end'] = __( 'Disabling Maintenance mode…' ); 169 } 170 171 /** 172 * Connect to the filesystem. 173 * 174 * @since 2.8.0 175 * 176 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. 177 * 178 * @param string[] $directories Optional. Array of directories. If any of these do 179 * not exist, a WP_Error object will be returned. 180 * Default empty array. 181 * @param bool $allow_relaxed_file_ownership Whether to allow relaxed file ownership. 182 * Default false. 183 * @return bool|WP_Error True if able to connect, false or a WP_Error otherwise. 184 */ 185 public function fs_connect( $directories = array(), $allow_relaxed_file_ownership = false ) { 186 global $wp_filesystem; 187 188 $credentials = $this->skin->request_filesystem_credentials( false, $directories[0], $allow_relaxed_file_ownership ); 189 if ( false === $credentials ) { 190 return false; 191 } 192 193 if ( ! WP_Filesystem( $credentials, $directories[0], $allow_relaxed_file_ownership ) ) { 194 $error = true; 195 if ( is_object( $wp_filesystem ) && $wp_filesystem->errors->has_errors() ) { 196 $error = $wp_filesystem->errors; 197 } 198 // Failed to connect. Error and request again. 199 $this->skin->request_filesystem_credentials( $error, $directories[0], $allow_relaxed_file_ownership ); 200 return false; 201 } 202 203 if ( ! is_object( $wp_filesystem ) ) { 204 return new WP_Error( 'fs_unavailable', $this->strings['fs_unavailable'] ); 205 } 206 207 if ( is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { 208 return new WP_Error( 'fs_error', $this->strings['fs_error'], $wp_filesystem->errors ); 209 } 210 211 foreach ( (array) $directories as $dir ) { 212 switch ( $dir ) { 213 case ABSPATH: 214 if ( ! $wp_filesystem->abspath() ) { 215 return new WP_Error( 'fs_no_root_dir', $this->strings['fs_no_root_dir'] ); 216 } 217 break; 218 case WP_CONTENT_DIR: 219 if ( ! $wp_filesystem->wp_content_dir() ) { 220 return new WP_Error( 'fs_no_content_dir', $this->strings['fs_no_content_dir'] ); 221 } 222 break; 223 case WP_PLUGIN_DIR: 224 if ( ! $wp_filesystem->wp_plugins_dir() ) { 225 return new WP_Error( 'fs_no_plugins_dir', $this->strings['fs_no_plugins_dir'] ); 226 } 227 break; 228 case get_theme_root(): 229 if ( ! $wp_filesystem->wp_themes_dir() ) { 230 return new WP_Error( 'fs_no_themes_dir', $this->strings['fs_no_themes_dir'] ); 231 } 232 break; 233 default: 234 if ( ! $wp_filesystem->find_folder( $dir ) ) { 235 return new WP_Error( 'fs_no_folder', sprintf( $this->strings['fs_no_folder'], esc_html( basename( $dir ) ) ) ); 236 } 237 break; 238 } 239 } 240 return true; 241 } 242 243 /** 244 * Download a package. 245 * 246 * @since 2.8.0 247 * @since 5.5.0 Added the `$hook_extra` parameter. 248 * 249 * @param string $package The URI of the package. If this is the full path to an 250 * existing local file, it will be returned untouched. 251 * @param bool $check_signatures Whether to validate file signatures. Default false. 252 * @param array $hook_extra Extra arguments to pass to the filter hooks. Default empty array. 253 * @return string|WP_Error The full path to the downloaded package file, or a WP_Error object. 254 */ 255 public function download_package( $package, $check_signatures = false, $hook_extra = array() ) { 256 /** 257 * Filters whether to return the package. 258 * 259 * @since 3.7.0 260 * @since 5.5.0 Added the `$hook_extra` parameter. 261 * 262 * @param bool $reply Whether to bail without returning the package. 263 * Default false. 264 * @param string $package The package file name. 265 * @param WP_Upgrader $upgrader The WP_Upgrader instance. 266 * @param array $hook_extra Extra arguments passed to hooked filters. 267 */ 268 $reply = apply_filters( 'upgrader_pre_download', false, $package, $this, $hook_extra ); 269 if ( false !== $reply ) { 270 return $reply; 271 } 272 273 if ( ! preg_match( '!^(http|https|ftp)://!i', $package ) && file_exists( $package ) ) { // Local file or remote? 274 return $package; // Must be a local file. 275 } 276 277 if ( empty( $package ) ) { 278 return new WP_Error( 'no_package', $this->strings['no_package'] ); 279 } 280 281 $this->skin->feedback( 'downloading_package', $package ); 282 283 $download_file = download_url( $package, 300, $check_signatures ); 284 285 if ( is_wp_error( $download_file ) && ! $download_file->get_error_data( 'softfail-filename' ) ) { 286 return new WP_Error( 'download_failed', $this->strings['download_failed'], $download_file->get_error_message() ); 287 } 288 289 return $download_file; 290 } 291 292 /** 293 * Unpack a compressed package file. 294 * 295 * @since 2.8.0 296 * 297 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. 298 * 299 * @param string $package Full path to the package file. 300 * @param bool $delete_package Optional. Whether to delete the package file after attempting 301 * to unpack it. Default true. 302 * @return string|WP_Error The path to the unpacked contents, or a WP_Error on failure. 303 */ 304 public function unpack_package( $package, $delete_package = true ) { 305 global $wp_filesystem; 306 307 $this->skin->feedback( 'unpack_package' ); 308 309 $upgrade_folder = $wp_filesystem->wp_content_dir() . 'upgrade/'; 310 311 // Clean up contents of upgrade directory beforehand. 312 $upgrade_files = $wp_filesystem->dirlist( $upgrade_folder ); 313 if ( ! empty( $upgrade_files ) ) { 314 foreach ( $upgrade_files as $file ) { 315 $wp_filesystem->delete( $upgrade_folder . $file['name'], true ); 316 } 317 } 318 319 // We need a working directory - strip off any .tmp or .zip suffixes. 320 $working_dir = $upgrade_folder . basename( basename( $package, '.tmp' ), '.zip' ); 321 322 // Clean up working directory. 323 if ( $wp_filesystem->is_dir( $working_dir ) ) { 324 $wp_filesystem->delete( $working_dir, true ); 325 } 326 327 // Unzip package to working directory. 328 $result = unzip_file( $package, $working_dir ); 329 330 // Once extracted, delete the package if required. 331 if ( $delete_package ) { 332 unlink( $package ); 333 } 334 335 if ( is_wp_error( $result ) ) { 336 $wp_filesystem->delete( $working_dir, true ); 337 if ( 'incompatible_archive' === $result->get_error_code() ) { 338 return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], $result->get_error_data() ); 339 } 340 return $result; 341 } 342 343 return $working_dir; 344 } 345 346 /** 347 * Flatten the results of WP_Filesystem_Base::dirlist() for iterating over. 348 * 349 * @since 4.9.0 350 * @access protected 351 * 352 * @param array $nested_files Array of files as returned by WP_Filesystem_Base::dirlist(). 353 * @param string $path Relative path to prepend to child nodes. Optional. 354 * @return array A flattened array of the $nested_files specified. 355 */ 356 protected function flatten_dirlist( $nested_files, $path = '' ) { 357 $files = array(); 358 359 foreach ( $nested_files as $name => $details ) { 360 $files[ $path . $name ] = $details; 361 362 // Append children recursively. 363 if ( ! empty( $details['files'] ) ) { 364 $children = $this->flatten_dirlist( $details['files'], $path . $name . '/' ); 365 366 // Merge keeping possible numeric keys, which array_merge() will reindex from 0..n. 367 $files = $files + $children; 368 } 369 } 370 371 return $files; 372 } 373 374 /** 375 * Clears the directory where this item is going to be installed into. 376 * 377 * @since 4.3.0 378 * 379 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. 380 * 381 * @param string $remote_destination The location on the remote filesystem to be cleared 382 * @return bool|WP_Error True upon success, WP_Error on failure. 383 */ 384 public function clear_destination( $remote_destination ) { 385 global $wp_filesystem; 386 387 $files = $wp_filesystem->dirlist( $remote_destination, true, true ); 388 389 // False indicates that the $remote_destination doesn't exist. 390 if ( false === $files ) { 391 return true; 392 } 393 394 // Flatten the file list to iterate over. 395 $files = $this->flatten_dirlist( $files ); 396 397 // Check all files are writable before attempting to clear the destination. 398 $unwritable_files = array(); 399 400 // Check writability. 401 foreach ( $files as $filename => $file_details ) { 402 if ( ! $wp_filesystem->is_writable( $remote_destination . $filename ) ) { 403 // Attempt to alter permissions to allow writes and try again. 404 $wp_filesystem->chmod( $remote_destination . $filename, ( 'd' === $file_details['type'] ? FS_CHMOD_DIR : FS_CHMOD_FILE ) ); 405 if ( ! $wp_filesystem->is_writable( $remote_destination . $filename ) ) { 406 $unwritable_files[] = $filename; 407 } 408 } 409 } 410 411 if ( ! empty( $unwritable_files ) ) { 412 return new WP_Error( 'files_not_writable', $this->strings['files_not_writable'], implode( ', ', $unwritable_files ) ); 413 } 414 415 if ( ! $wp_filesystem->delete( $remote_destination, true ) ) { 416 return new WP_Error( 'remove_old_failed', $this->strings['remove_old_failed'] ); 417 } 418 419 return true; 420 } 421 422 /** 423 * Install a package. 424 * 425 * Copies the contents of a package form a source directory, and installs them in 426 * a destination directory. Optionally removes the source. It can also optionally 427 * clear out the destination folder if it already exists. 428 * 429 * @since 2.8.0 430 * 431 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. 432 * @global array $wp_theme_directories 433 * 434 * @param array|string $args { 435 * Optional. Array or string of arguments for installing a package. Default empty array. 436 * 437 * @type string $source Required path to the package source. Default empty. 438 * @type string $destination Required path to a folder to install the package in. 439 * Default empty. 440 * @type bool $clear_destination Whether to delete any files already in the destination 441 * folder. Default false. 442 * @type bool $clear_working Whether to delete the files form the working directory 443 * after copying to the destination. Default false. 444 * @type bool $abort_if_destination_exists Whether to abort the installation if 445 * the destination folder already exists. Default true. 446 * @type array $hook_extra Extra arguments to pass to the filter hooks called by 447 * WP_Upgrader::install_package(). Default empty array. 448 * } 449 * 450 * @return array|WP_Error The result (also stored in `WP_Upgrader::$result`), or a WP_Error on failure. 451 */ 452 public function install_package( $args = array() ) { 453 global $wp_filesystem, $wp_theme_directories; 454 455 $defaults = array( 456 'source' => '', // Please always pass this. 457 'destination' => '', // ...and this. 458 'clear_destination' => false, 459 'clear_working' => false, 460 'abort_if_destination_exists' => true, 461 'hook_extra' => array(), 462 ); 463 464 $args = wp_parse_args( $args, $defaults ); 465 466 // These were previously extract()'d. 467 $source = $args['source']; 468 $destination = $args['destination']; 469 $clear_destination = $args['clear_destination']; 470 471 set_time_limit( 300 ); 472 473 if ( empty( $source ) || empty( $destination ) ) { 474 return new WP_Error( 'bad_request', $this->strings['bad_request'] ); 475 } 476 $this->skin->feedback( 'installing_package' ); 477 478 /** 479 * Filters the install response before the installation has started. 480 * 481 * Returning a value that could be evaluated as a `WP_Error` will effectively 482 * short-circuit the installation, returning that value instead. 483 * 484 * @since 2.8.0 485 * 486 * @param bool|WP_Error $response Response. 487 * @param array $hook_extra Extra arguments passed to hooked filters. 488 */ 489 $res = apply_filters( 'upgrader_pre_install', true, $args['hook_extra'] ); 490 491 if ( is_wp_error( $res ) ) { 492 return $res; 493 } 494 495 // Retain the original source and destinations. 496 $remote_source = $args['source']; 497 $local_destination = $destination; 498 499 $source_files = array_keys( $wp_filesystem->dirlist( $remote_source ) ); 500 $remote_destination = $wp_filesystem->find_folder( $local_destination ); 501 502 // Locate which directory to copy to the new folder. This is based on the actual folder holding the files. 503 if ( 1 === count( $source_files ) && $wp_filesystem->is_dir( trailingslashit( $args['source'] ) . $source_files[0] . '/' ) ) { 504 // Only one folder? Then we want its contents. 505 $source = trailingslashit( $args['source'] ) . trailingslashit( $source_files[0] ); 506 } elseif ( 0 === count( $source_files ) ) { 507 // There are no files? 508 return new WP_Error( 'incompatible_archive_empty', $this->strings['incompatible_archive'], $this->strings['no_files'] ); 509 } else { 510 // It's only a single file, the upgrader will use the folder name of this file as the destination folder. 511 // Folder name is based on zip filename. 512 $source = trailingslashit( $args['source'] ); 513 } 514 515 /** 516 * Filters the source file location for the upgrade package. 517 * 518 * @since 2.8.0 519 * @since 4.4.0 The $hook_extra parameter became available. 520 * 521 * @param string $source File source location. 522 * @param string $remote_source Remote file source location. 523 * @param WP_Upgrader $upgrader WP_Upgrader instance. 524 * @param array $hook_extra Extra arguments passed to hooked filters. 525 */ 526 $source = apply_filters( 'upgrader_source_selection', $source, $remote_source, $this, $args['hook_extra'] ); 527 528 if ( is_wp_error( $source ) ) { 529 return $source; 530 } 531 532 // Has the source location changed? If so, we need a new source_files list. 533 if ( $source !== $remote_source ) { 534 $source_files = array_keys( $wp_filesystem->dirlist( $source ) ); 535 } 536 537 /* 538 * Protection against deleting files in any important base directories. 539 * Theme_Upgrader & Plugin_Upgrader also trigger this, as they pass the 540 * destination directory (WP_PLUGIN_DIR / wp-content/themes) intending 541 * to copy the directory into the directory, whilst they pass the source 542 * as the actual files to copy. 543 */ 544 $protected_directories = array( ABSPATH, WP_CONTENT_DIR, WP_PLUGIN_DIR, WP_CONTENT_DIR . '/themes' ); 545 546 if ( is_array( $wp_theme_directories ) ) { 547 $protected_directories = array_merge( $protected_directories, $wp_theme_directories ); 548 } 549 550 if ( in_array( $destination, $protected_directories, true ) ) { 551 $remote_destination = trailingslashit( $remote_destination ) . trailingslashit( basename( $source ) ); 552 $destination = trailingslashit( $destination ) . trailingslashit( basename( $source ) ); 553 } 554 555 if ( $clear_destination ) { 556 // We're going to clear the destination if there's something there. 557 $this->skin->feedback( 'remove_old' ); 558 559 $removed = $this->clear_destination( $remote_destination ); 560 561 /** 562 * Filters whether the upgrader cleared the destination. 563 * 564 * @since 2.8.0 565 * 566 * @param true|WP_Error $removed Whether the destination was cleared. true upon success, WP_Error on failure. 567 * @param string $local_destination The local package destination. 568 * @param string $remote_destination The remote package destination. 569 * @param array $hook_extra Extra arguments passed to hooked filters. 570 */ 571 $removed = apply_filters( 'upgrader_clear_destination', $removed, $local_destination, $remote_destination, $args['hook_extra'] ); 572 573 if ( is_wp_error( $removed ) ) { 574 return $removed; 575 } 576 } elseif ( $args['abort_if_destination_exists'] && $wp_filesystem->exists( $remote_destination ) ) { 577 // If we're not clearing the destination folder and something exists there already, bail. 578 // But first check to see if there are actually any files in the folder. 579 $_files = $wp_filesystem->dirlist( $remote_destination ); 580 if ( ! empty( $_files ) ) { 581 $wp_filesystem->delete( $remote_source, true ); // Clear out the source files. 582 return new WP_Error( 'folder_exists', $this->strings['folder_exists'], $remote_destination ); 583 } 584 } 585 586 // Create destination if needed. 587 if ( ! $wp_filesystem->exists( $remote_destination ) ) { 588 if ( ! $wp_filesystem->mkdir( $remote_destination, FS_CHMOD_DIR ) ) { 589 return new WP_Error( 'mkdir_failed_destination', $this->strings['mkdir_failed'], $remote_destination ); 590 } 591 } 592 593 // Copy new version of item into place. 594 $result = copy_dir( $source, $remote_destination ); 595 if ( is_wp_error( $result ) ) { 596 if ( $args['clear_working'] ) { 597 $wp_filesystem->delete( $remote_source, true ); 598 } 599 return $result; 600 } 601 602 // Clear the working folder? 603 if ( $args['clear_working'] ) { 604 $wp_filesystem->delete( $remote_source, true ); 605 } 606 607 $destination_name = basename( str_replace( $local_destination, '', $destination ) ); 608 if ( '.' === $destination_name ) { 609 $destination_name = ''; 610 } 611 612 $this->result = compact( 'source', 'source_files', 'destination', 'destination_name', 'local_destination', 'remote_destination', 'clear_destination' ); 613 614 /** 615 * Filters the installation response after the installation has finished. 616 * 617 * @since 2.8.0 618 * 619 * @param bool $response Installation response. 620 * @param array $hook_extra Extra arguments passed to hooked filters. 621 * @param array $result Installation result data. 622 */ 623 $res = apply_filters( 'upgrader_post_install', true, $args['hook_extra'], $this->result ); 624 625 if ( is_wp_error( $res ) ) { 626 $this->result = $res; 627 return $res; 628 } 629 630 // Bombard the calling function will all the info which we've just used. 631 return $this->result; 632 } 633 634 /** 635 * Run an upgrade/installation. 636 * 637 * Attempts to download the package (if it is not a local file), unpack it, and 638 * install it in the destination folder. 639 * 640 * @since 2.8.0 641 * 642 * @param array $options { 643 * Array or string of arguments for upgrading/installing a package. 644 * 645 * @type string $package The full path or URI of the package to install. 646 * Default empty. 647 * @type string $destination The full path to the destination folder. 648 * Default empty. 649 * @type bool $clear_destination Whether to delete any files already in the 650 * destination folder. Default false. 651 * @type bool $clear_working Whether to delete the files form the working 652 * directory after copying to the destination. 653 * Default false. 654 * @type bool $abort_if_destination_exists Whether to abort the installation if the destination 655 * folder already exists. When true, `$clear_destination` 656 * should be false. Default true. 657 * @type bool $is_multi Whether this run is one of multiple upgrade/installation 658 * actions being performed in bulk. When true, the skin 659 * WP_Upgrader::header() and WP_Upgrader::footer() 660 * aren't called. Default false. 661 * @type array $hook_extra Extra arguments to pass to the filter hooks called by 662 * WP_Upgrader::run(). 663 * } 664 * @return array|false|WP_Error The result from self::install_package() on success, otherwise a WP_Error, 665 * or false if unable to connect to the filesystem. 666 */ 667 public function run( $options ) { 668 669 $defaults = array( 670 'package' => '', // Please always pass this. 671 'destination' => '', // ...and this. 672 'clear_destination' => false, 673 'abort_if_destination_exists' => true, // Abort if the destination directory exists. Pass clear_destination as false please. 674 'clear_working' => true, 675 'is_multi' => false, 676 'hook_extra' => array(), // Pass any extra $hook_extra args here, this will be passed to any hooked filters. 677 ); 678 679 $options = wp_parse_args( $options, $defaults ); 680 681 /** 682 * Filters the package options before running an update. 683 * 684 * See also {@see 'upgrader_process_complete'}. 685 * 686 * @since 4.3.0 687 * 688 * @param array $options { 689 * Options used by the upgrader. 690 * 691 * @type string $package Package for update. 692 * @type string $destination Update location. 693 * @type bool $clear_destination Clear the destination resource. 694 * @type bool $clear_working Clear the working resource. 695 * @type bool $abort_if_destination_exists Abort if the Destination directory exists. 696 * @type bool $is_multi Whether the upgrader is running multiple times. 697 * @type array $hook_extra { 698 * Extra hook arguments. 699 * 700 * @type string $action Type of action. Default 'update'. 701 * @type string $type Type of update process. Accepts 'plugin', 'theme', or 'core'. 702 * @type bool $bulk Whether the update process is a bulk update. Default true. 703 * @type string $plugin Path to the plugin file relative to the plugins directory. 704 * @type string $theme The stylesheet or template name of the theme. 705 * @type string $language_update_type The language pack update type. Accepts 'plugin', 'theme', 706 * or 'core'. 707 * @type object $language_update The language pack update offer. 708 * } 709 * } 710 */ 711 $options = apply_filters( 'upgrader_package_options', $options ); 712 713 if ( ! $options['is_multi'] ) { // Call $this->header separately if running multiple times. 714 $this->skin->header(); 715 } 716 717 // Connect to the filesystem first. 718 $res = $this->fs_connect( array( WP_CONTENT_DIR, $options['destination'] ) ); 719 // Mainly for non-connected filesystem. 720 if ( ! $res ) { 721 if ( ! $options['is_multi'] ) { 722 $this->skin->footer(); 723 } 724 return false; 725 } 726 727 $this->skin->before(); 728 729 if ( is_wp_error( $res ) ) { 730 $this->skin->error( $res ); 731 $this->skin->after(); 732 if ( ! $options['is_multi'] ) { 733 $this->skin->footer(); 734 } 735 return $res; 736 } 737 738 /* 739 * Download the package (Note, This just returns the filename 740 * of the file if the package is a local file) 741 */ 742 $download = $this->download_package( $options['package'], true, $options['hook_extra'] ); 743 744 // Allow for signature soft-fail. 745 // WARNING: This may be removed in the future. 746 if ( is_wp_error( $download ) && $download->get_error_data( 'softfail-filename' ) ) { 747 748 // Don't output the 'no signature could be found' failure message for now. 749 if ( 'signature_verification_no_signature' !== $download->get_error_code() || WP_DEBUG ) { 750 // Output the failure error as a normal feedback, and not as an error. 751 $this->skin->feedback( $download->get_error_message() ); 752 753 // Report this failure back to WordPress.org for debugging purposes. 754 wp_version_check( 755 array( 756 'signature_failure_code' => $download->get_error_code(), 757 'signature_failure_data' => $download->get_error_data(), 758 ) 759 ); 760 } 761 762 // Pretend this error didn't happen. 763 $download = $download->get_error_data( 'softfail-filename' ); 764 } 765 766 if ( is_wp_error( $download ) ) { 767 $this->skin->error( $download ); 768 $this->skin->after(); 769 if ( ! $options['is_multi'] ) { 770 $this->skin->footer(); 771 } 772 return $download; 773 } 774 775 $delete_package = ( $download !== $options['package'] ); // Do not delete a "local" file. 776 777 // Unzips the file into a temporary directory. 778 $working_dir = $this->unpack_package( $download, $delete_package ); 779 if ( is_wp_error( $working_dir ) ) { 780 $this->skin->error( $working_dir ); 781 $this->skin->after(); 782 if ( ! $options['is_multi'] ) { 783 $this->skin->footer(); 784 } 785 return $working_dir; 786 } 787 788 // With the given options, this installs it to the destination directory. 789 $result = $this->install_package( 790 array( 791 'source' => $working_dir, 792 'destination' => $options['destination'], 793 'clear_destination' => $options['clear_destination'], 794 'abort_if_destination_exists' => $options['abort_if_destination_exists'], 795 'clear_working' => $options['clear_working'], 796 'hook_extra' => $options['hook_extra'], 797 ) 798 ); 799 800 /** 801 * Filters the result of WP_Upgrader::install_package(). 802 * 803 * @since 5.7.0 804 * 805 * @param array|WP_Error $result Result from WP_Upgrader::install_package(). 806 * @param array $hook_extra Extra arguments passed to hooked filters. 807 */ 808 $result = apply_filters( 'upgrader_install_package_result', $result, $options['hook_extra'] ); 809 810 $this->skin->set_result( $result ); 811 if ( is_wp_error( $result ) ) { 812 $this->skin->error( $result ); 813 814 if ( ! method_exists( $this->skin, 'hide_process_failed' ) || ! $this->skin->hide_process_failed( $result ) ) { 815 $this->skin->feedback( 'process_failed' ); 816 } 817 } else { 818 // Installation succeeded. 819 $this->skin->feedback( 'process_success' ); 820 } 821 822 $this->skin->after(); 823 824 if ( ! $options['is_multi'] ) { 825 826 /** 827 * Fires when the upgrader process is complete. 828 * 829 * See also {@see 'upgrader_package_options'}. 830 * 831 * @since 3.6.0 832 * @since 3.7.0 Added to WP_Upgrader::run(). 833 * @since 4.6.0 `$translations` was added as a possible argument to `$hook_extra`. 834 * 835 * @param WP_Upgrader $this WP_Upgrader instance. In other contexts, $this, might be a 836 * Theme_Upgrader, Plugin_Upgrader, Core_Upgrade, or Language_Pack_Upgrader instance. 837 * @param array $hook_extra { 838 * Array of bulk item update data. 839 * 840 * @type string $action Type of action. Default 'update'. 841 * @type string $type Type of update process. Accepts 'plugin', 'theme', 'translation', or 'core'. 842 * @type bool $bulk Whether the update process is a bulk update. Default true. 843 * @type array $plugins Array of the basename paths of the plugins' main files. 844 * @type array $themes The theme slugs. 845 * @type array $translations { 846 * Array of translations update data. 847 * 848 * @type string $language The locale the translation is for. 849 * @type string $type Type of translation. Accepts 'plugin', 'theme', or 'core'. 850 * @type string $slug Text domain the translation is for. The slug of a theme/plugin or 851 * 'default' for core translations. 852 * @type string $version The version of a theme, plugin, or core. 853 * } 854 * } 855 */ 856 do_action( 'upgrader_process_complete', $this, $options['hook_extra'] ); 857 858 $this->skin->footer(); 859 } 860 861 return $result; 862 } 863 864 /** 865 * Toggle maintenance mode for the site. 866 * 867 * Creates/deletes the maintenance file to enable/disable maintenance mode. 868 * 869 * @since 2.8.0 870 * 871 * @global WP_Filesystem_Base $wp_filesystem Subclass 872 * 873 * @param bool $enable True to enable maintenance mode, false to disable. 874 */ 875 public function maintenance_mode( $enable = false ) { 876 global $wp_filesystem; 877 $file = $wp_filesystem->abspath() . '.maintenance'; 878 if ( $enable ) { 879 $this->skin->feedback( 'maintenance_start' ); 880 // Create maintenance file to signal that we are upgrading. 881 $maintenance_string = '<?php $upgrading = ' . time() . '; ?>'; 882 $wp_filesystem->delete( $file ); 883 $wp_filesystem->put_contents( $file, $maintenance_string, FS_CHMOD_FILE ); 884 } elseif ( ! $enable && $wp_filesystem->exists( $file ) ) { 885 $this->skin->feedback( 'maintenance_end' ); 886 $wp_filesystem->delete( $file ); 887 } 888 } 889 890 /** 891 * Creates a lock using WordPress options. 892 * 893 * @since 4.5.0 894 * 895 * @param string $lock_name The name of this unique lock. 896 * @param int $release_timeout Optional. The duration in seconds to respect an existing lock. 897 * Default: 1 hour. 898 * @return bool False if a lock couldn't be created or if the lock is still valid. True otherwise. 899 */ 900 public static function create_lock( $lock_name, $release_timeout = null ) { 901 global $wpdb; 902 if ( ! $release_timeout ) { 903 $release_timeout = HOUR_IN_SECONDS; 904 } 905 $lock_option = $lock_name . '.lock'; 906 907 // Try to lock. 908 $lock_result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` ( `option_name`, `option_value`, `autoload` ) VALUES (%s, %s, 'no') /* LOCK */", $lock_option, time() ) ); 909 910 if ( ! $lock_result ) { 911 $lock_result = get_option( $lock_option ); 912 913 // If a lock couldn't be created, and there isn't a lock, bail. 914 if ( ! $lock_result ) { 915 return false; 916 } 917 918 // Check to see if the lock is still valid. If it is, bail. 919 if ( $lock_result > ( time() - $release_timeout ) ) { 920 return false; 921 } 922 923 // There must exist an expired lock, clear it and re-gain it. 924 WP_Upgrader::release_lock( $lock_name ); 925 926 return WP_Upgrader::create_lock( $lock_name, $release_timeout ); 927 } 928 929 // Update the lock, as by this point we've definitely got a lock, just need to fire the actions. 930 update_option( $lock_option, time() ); 931 932 return true; 933 } 934 935 /** 936 * Releases an upgrader lock. 937 * 938 * @since 4.5.0 939 * 940 * @see WP_Upgrader::create_lock() 941 * 942 * @param string $lock_name The name of this unique lock. 943 * @return bool True if the lock was successfully released. False on failure. 944 */ 945 public static function release_lock( $lock_name ) { 946 return delete_option( $lock_name . '.lock' ); 947 } 948 949 } 950 951 /** Plugin_Upgrader class */ 952 require_once ABSPATH . 'wp-admin/includes/class-plugin-upgrader.php'; 953 954 /** Theme_Upgrader class */ 955 require_once ABSPATH . 'wp-admin/includes/class-theme-upgrader.php'; 956 957 /** Language_Pack_Upgrader class */ 958 require_once ABSPATH . 'wp-admin/includes/class-language-pack-upgrader.php'; 959 960 /** Core_Upgrader class */ 961 require_once ABSPATH . 'wp-admin/includes/class-core-upgrader.php'; 962 963 /** File_Upload_Upgrader class */ 964 require_once ABSPATH . 'wp-admin/includes/class-file-upload-upgrader.php'; 965 966 /** WP_Automatic_Updater class */ 967 require_once ABSPATH . 'wp-admin/includes/class-wp-automatic-updater.php';
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| Generated: Thu Jul 29 01:00:05 2021 | Cross-referenced by PHPXref 0.7.1 |