/wpress/wp-admin/includes/update-core.php
PHP | 640 lines | 471 code | 43 blank | 126 comment | 53 complexity | a3f11666c0e202712729755445b2b039 MD5 | raw file
1<?php 2/** 3 * WordPress core upgrade functionality. 4 * 5 * @package WordPress 6 * @subpackage Administration 7 * @since 2.7.0 8 */ 9 10/** 11 * Stores files to be deleted. 12 * 13 * @since 2.7.0 14 * @global array $_old_files 15 * @var array 16 * @name $_old_files 17 */ 18global $_old_files; 19 20$_old_files = array( 21'wp-admin/bookmarklet.php', 22'wp-admin/css/upload.css', 23'wp-admin/css/upload-rtl.css', 24'wp-admin/css/press-this-ie.css', 25'wp-admin/css/press-this-ie-rtl.css', 26'wp-admin/edit-form.php', 27'wp-admin/link-import.php', 28'wp-admin/images/box-bg-left.gif', 29'wp-admin/images/box-bg-right.gif', 30'wp-admin/images/box-bg.gif', 31'wp-admin/images/box-butt-left.gif', 32'wp-admin/images/box-butt-right.gif', 33'wp-admin/images/box-butt.gif', 34'wp-admin/images/box-head-left.gif', 35'wp-admin/images/box-head-right.gif', 36'wp-admin/images/box-head.gif', 37'wp-admin/images/heading-bg.gif', 38'wp-admin/images/login-bkg-bottom.gif', 39'wp-admin/images/login-bkg-tile.gif', 40'wp-admin/images/notice.gif', 41'wp-admin/images/toggle.gif', 42'wp-admin/images/comment-stalk-classic.gif', 43'wp-admin/images/comment-stalk-fresh.gif', 44'wp-admin/images/comment-stalk-rtl.gif', 45'wp-admin/images/comment-pill.gif', 46'wp-admin/images/del.png', 47'wp-admin/images/media-button-gallery.gif', 48'wp-admin/images/media-buttons.gif', 49'wp-admin/images/tail.gif', 50'wp-admin/images/gear.png', 51'wp-admin/images/tab.png', 52'wp-admin/images/postbox-bg.gif', 53'wp-admin/includes/upload.php', 54'wp-admin/js/dbx-admin-key.js', 55'wp-admin/js/link-cat.js', 56'wp-admin/js/forms.js', 57'wp-admin/js/upload.js', 58'wp-admin/js/set-post-thumbnail-handler.js', 59'wp-admin/js/set-post-thumbnail-handler.dev.js', 60'wp-admin/js/page.js', 61'wp-admin/js/page.dev.js', 62'wp-admin/js/slug.js', 63'wp-admin/js/slug.dev.js', 64'wp-admin/profile-update.php', 65'wp-admin/templates.php', 66'wp-includes/images/audio.png', 67'wp-includes/images/css.png', 68'wp-includes/images/default.png', 69'wp-includes/images/doc.png', 70'wp-includes/images/exe.png', 71'wp-includes/images/html.png', 72'wp-includes/images/js.png', 73'wp-includes/images/pdf.png', 74'wp-includes/images/swf.png', 75'wp-includes/images/tar.png', 76'wp-includes/images/text.png', 77'wp-includes/images/video.png', 78'wp-includes/images/zip.png', 79'wp-includes/js/dbx.js', 80'wp-includes/js/fat.js', 81'wp-includes/js/list-manipulation.js', 82'wp-includes/js/jquery/jquery.dimensions.min.js', 83'wp-includes/js/tinymce/langs/en.js', 84'wp-includes/js/tinymce/plugins/autosave/editor_plugin_src.js', 85'wp-includes/js/tinymce/plugins/autosave/langs', 86'wp-includes/js/tinymce/plugins/directionality/images', 87'wp-includes/js/tinymce/plugins/directionality/langs', 88'wp-includes/js/tinymce/plugins/inlinepopups/css', 89'wp-includes/js/tinymce/plugins/inlinepopups/images', 90'wp-includes/js/tinymce/plugins/inlinepopups/jscripts', 91'wp-includes/js/tinymce/plugins/paste/images', 92'wp-includes/js/tinymce/plugins/paste/jscripts', 93'wp-includes/js/tinymce/plugins/paste/langs', 94'wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php', 95'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyGoogleSpell.class.php', 96'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspell.class.php', 97'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspellShell.class.php', 98'wp-includes/js/tinymce/plugins/spellchecker/css/spellchecker.css', 99'wp-includes/js/tinymce/plugins/spellchecker/images', 100'wp-includes/js/tinymce/plugins/spellchecker/langs', 101'wp-includes/js/tinymce/plugins/spellchecker/tinyspell.php', 102'wp-includes/js/tinymce/plugins/wordpress/images', 103'wp-includes/js/tinymce/plugins/wordpress/langs', 104'wp-includes/js/tinymce/plugins/wordpress/popups.css', 105'wp-includes/js/tinymce/plugins/wordpress/wordpress.css', 106'wp-includes/js/tinymce/plugins/wphelp', 107'wp-includes/js/tinymce/themes/advanced/css', 108'wp-includes/js/tinymce/themes/advanced/images', 109'wp-includes/js/tinymce/themes/advanced/jscripts', 110'wp-includes/js/tinymce/themes/advanced/langs', 111'wp-includes/js/tinymce/tiny_mce_gzip.php', 112'wp-includes/js/wp-ajax.js', 113'wp-admin/admin-db.php', 114'wp-admin/cat.js', 115'wp-admin/categories.js', 116'wp-admin/custom-fields.js', 117'wp-admin/dbx-admin-key.js', 118'wp-admin/edit-comments.js', 119'wp-admin/install-rtl.css', 120'wp-admin/install.css', 121'wp-admin/upgrade-schema.php', 122'wp-admin/upload-functions.php', 123'wp-admin/upload-rtl.css', 124'wp-admin/upload.css', 125'wp-admin/upload.js', 126'wp-admin/users.js', 127'wp-admin/widgets-rtl.css', 128'wp-admin/widgets.css', 129'wp-admin/xfn.js', 130'wp-includes/js/tinymce/license.html', 131'wp-admin/cat-js.php', 132'wp-admin/edit-form-ajax-cat.php', 133'wp-admin/execute-pings.php', 134'wp-admin/import/b2.php', 135'wp-admin/import/btt.php', 136'wp-admin/import/jkw.php', 137'wp-admin/inline-uploading.php', 138'wp-admin/link-categories.php', 139'wp-admin/list-manipulation.js', 140'wp-admin/list-manipulation.php', 141'wp-includes/comment-functions.php', 142'wp-includes/feed-functions.php', 143'wp-includes/functions-compat.php', 144'wp-includes/functions-formatting.php', 145'wp-includes/functions-post.php', 146'wp-includes/js/dbx-key.js', 147'wp-includes/js/tinymce/plugins/autosave/langs/cs.js', 148'wp-includes/js/tinymce/plugins/autosave/langs/sv.js', 149'wp-includes/js/tinymce/themes/advanced/editor_template_src.js', 150'wp-includes/links.php', 151'wp-includes/pluggable-functions.php', 152'wp-includes/template-functions-author.php', 153'wp-includes/template-functions-category.php', 154'wp-includes/template-functions-general.php', 155'wp-includes/template-functions-links.php', 156'wp-includes/template-functions-post.php', 157'wp-includes/wp-l10n.php', 158'wp-admin/import-b2.php', 159'wp-admin/import-blogger.php', 160'wp-admin/import-greymatter.php', 161'wp-admin/import-livejournal.php', 162'wp-admin/import-mt.php', 163'wp-admin/import-rss.php', 164'wp-admin/import-textpattern.php', 165'wp-admin/quicktags.js', 166'wp-images/fade-butt.png', 167'wp-images/get-firefox.png', 168'wp-images/header-shadow.png', 169'wp-images/smilies', 170'wp-images/wp-small.png', 171'wp-images/wpminilogo.png', 172'wp.php', 173'wp-includes/gettext.php', 174'wp-includes/streams.php', 175// MU 176'wp-admin/wpmu-admin.php', 177'wp-admin/wpmu-blogs.php', 178'wp-admin/wpmu-edit.php', 179'wp-admin/wpmu-options.php', 180'wp-admin/wpmu-themes.php', 181'wp-admin/wpmu-upgrade-site.php', 182'wp-admin/wpmu-users.php', 183'wp-includes/wpmu-default-filters.php', 184'wp-includes/wpmu-functions.php', 185'wpmu-settings.php', 186'index-install.php', 187'README.txt', 188'htaccess.dist', 189'wp-admin/css/mu-rtl.css', 190'wp-admin/css/mu.css', 191'wp-admin/images/site-admin.png', 192'wp-admin/includes/mu.php', 193'wp-includes/images/wordpress-mu.png', 194// 3.0 195'wp-admin/categories.php', 196'wp-admin/edit-category-form.php', 197'wp-admin/edit-page-form.php', 198'wp-admin/edit-pages.php', 199'wp-admin/images/wp-logo.gif', 200'wp-admin/js/wp-gears.dev.js', 201'wp-admin/js/wp-gears.js', 202'wp-admin/options-misc.php', 203'wp-admin/page-new.php', 204'wp-admin/page.php', 205'wp-admin/rtl.css', 206'wp-admin/rtl.dev.css', 207'wp-admin/update-links.php', 208'wp-admin/wp-admin.css', 209'wp-admin/wp-admin.dev.css', 210'wp-includes/js/codepress', 211'wp-includes/js/jquery/autocomplete.dev.js', 212'wp-includes/js/jquery/interface.js', 213'wp-includes/js/jquery/autocomplete.js', 214'wp-includes/js/scriptaculous/prototype.js', 215'wp-includes/js/tinymce/wp-tinymce.js', 216'wp-admin/import', 217'wp-admin/images/ico-edit.png', 218'wp-admin/images/fav-top.png', 219'wp-admin/images/ico-close.png', 220'wp-admin/images/admin-header-footer.png', 221'wp-admin/images/screen-options-left.gif', 222'wp-admin/images/ico-add.png', 223'wp-admin/images/browse-happy.gif', 224'wp-admin/images/ico-viewpage.png', 225// 3.1 226'wp-includes/js/tinymce/blank.htm', 227'wp-includes/js/tinymce/plugins/safari', 228'wp-admin/edit-link-categories.php', 229'wp-admin/edit-post-rows.php', 230'wp-admin/edit-attachment-rows.php', 231'wp-admin/link-category.php', 232'wp-admin/edit-link-category-form.php', 233'wp-admin/sidebar.php', 234'wp-admin/images/list-vs.png', 235'wp-admin/images/button-grad-vs.png', 236'wp-admin/images/button-grad-active-vs.png', 237'wp-admin/images/fav-arrow-vs.gif', 238'wp-admin/images/fav-arrow-vs-rtl.gif', 239'wp-admin/images/fav-top-vs.gif', 240'wp-admin/images/screen-options-right.gif', 241'wp-admin/images/screen-options-right-up.gif', 242'wp-admin/images/visit-site-button-grad-vs.gif', 243'wp-admin/images/visit-site-button-grad.gif', 244'wp-includes/classes.php', 245// 3.2 246'wp-includes/default-embeds.php', 247'wp-includes/js/tinymce/plugins/wordpress/img/more.gif', 248'wp-includes/js/tinymce/plugins/wordpress/img/toolbars.gif', 249'wp-includes/js/tinymce/plugins/wordpress/img/help.gif', 250'wp-includes/js/tinymce/themes/advanced/img/fm.gif', 251'wp-includes/js/tinymce/themes/advanced/img/sflogo.png', 252'wp-admin/js/list-table.js', 253'wp-admin/js/list-table.dev.js', 254'wp-admin/images/logo-login.gif', 255'wp-admin/images/star.gif', 256// 3.3 257'wp-admin/css/colors-classic-rtl.css', 258'wp-admin/css/colors-classic-rtl.dev.css', 259'wp-admin/css/colors-fresh-rtl.css', 260'wp-admin/css/colors-fresh-rtl.dev.css', 261'wp-admin/css/dashboard-rtl.css', 262'wp-admin/css/dashboard-rtl.dev.css', 263'wp-admin/css/dashboard.css', 264'wp-admin/css/dashboard.dev.css', 265'wp-admin/css/farbtastic-rtl.css', 266'wp-admin/css/global-rtl.css', 267'wp-admin/css/global-rtl.dev.css', 268'wp-admin/css/global.css', 269'wp-admin/css/global.dev.css', 270'wp-admin/css/install-rtl.css', 271'wp-admin/css/install-rtl.dev.css', 272'wp-admin/css/login-rtl.css', 273'wp-admin/css/login-rtl.dev.css', 274'wp-admin/css/login.css', 275'wp-admin/css/login.dev.css', 276'wp-admin/css/ms.css', 277'wp-admin/css/ms.dev.css', 278'wp-admin/css/nav-menu-rtl.css', 279'wp-admin/css/nav-menu-rtl.dev.css', 280'wp-admin/css/nav-menu.css', 281'wp-admin/css/nav-menu.dev.css', 282'wp-admin/css/plugin-install-rtl.css', 283'wp-admin/css/plugin-install-rtl.dev.css', 284'wp-admin/css/plugin-install.css', 285'wp-admin/css/plugin-install.dev.css', 286'wp-admin/css/press-this-rtl.css', 287'wp-admin/css/press-this-rtl.dev.css', 288'wp-admin/css/press-this.css', 289'wp-admin/css/press-this.dev.css', 290'wp-admin/css/theme-editor-rtl.css', 291'wp-admin/css/theme-editor-rtl.dev.css', 292'wp-admin/css/theme-editor.css', 293'wp-admin/css/theme-editor.dev.css', 294'wp-admin/css/theme-install-rtl.css', 295'wp-admin/css/theme-install-rtl.dev.css', 296'wp-admin/css/theme-install.css', 297'wp-admin/css/theme-install.dev.css', 298'wp-admin/css/widgets-rtl.css', 299'wp-admin/css/widgets-rtl.dev.css', 300'wp-admin/css/widgets.css', 301'wp-admin/css/widgets.dev.css', 302'wp-admin/includes/internal-linking.php', 303'wp-includes/images/admin-bar-sprite-rtl.png', 304'wp-includes/js/jquery/ui.button.js', 305'wp-includes/js/jquery/ui.core.js', 306'wp-includes/js/jquery/ui.dialog.js', 307'wp-includes/js/jquery/ui.draggable.js', 308'wp-includes/js/jquery/ui.droppable.js', 309'wp-includes/js/jquery/ui.mouse.js', 310'wp-includes/js/jquery/ui.position.js', 311'wp-includes/js/jquery/ui.resizable.js', 312'wp-includes/js/jquery/ui.selectable.js', 313'wp-includes/js/jquery/ui.sortable.js', 314'wp-includes/js/jquery/ui.tabs.js', 315'wp-includes/js/jquery/ui.widget.js', 316'wp-includes/js/l10n.dev.js', 317'wp-includes/js/l10n.js', 318'wp-includes/js/tinymce/plugins/wplink/css', 319'wp-includes/js/tinymce/plugins/wplink/img', 320'wp-includes/js/tinymce/plugins/wplink/js', 321'wp-includes/js/tinymce/themes/advanced/img/wpicons.png', 322'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/butt2.png', 323'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/button_bg.png', 324'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/down_arrow.gif', 325'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/fade-butt.png', 326'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/separator.gif', 327); 328 329/** 330 * Stores new files in wp-content to copy 331 * 332 * The contents of this array indicate any new bundled plugins/themes which 333 * should be installed with the WordPress Upgrade. These items will not be 334 * re-installed in future upgrades, this behaviour is controlled by the 335 * introduced version present here being older than the current installed version. 336 * 337 * The content of this array should follow the following format: 338 * Filename (relative to wp-content) => Introduced version 339 * Directories should be noted by suffixing it with a trailing slash (/) 340 * 341 * @since 3.2.0 342 * @global array $_new_bundled_files 343 * @var array 344 * @name $_new_bundled_files 345 */ 346global $_new_bundled_files; 347 348$_new_bundled_files = array( 349'plugins/akismet/' => '2.0', 350'themes/twentyten/' => '3.0', 351'themes/twentyeleven/' => '3.2' 352); 353 354/** 355 * Upgrade the core of WordPress. 356 * 357 * This will create a .maintenance file at the base of the WordPress directory 358 * to ensure that people can not access the web site, when the files are being 359 * copied to their locations. 360 * 361 * The files in the {@link $_old_files} list will be removed and the new files 362 * copied from the zip file after the database is upgraded. 363 * 364 * The files in the {@link $_new_bundled_files} list will be added to the installation 365 * if the version is greater than or equal to the old version being upgraded. 366 * 367 * The steps for the upgrader for after the new release is downloaded and 368 * unzipped is: 369 * 1. Test unzipped location for select files to ensure that unzipped worked. 370 * 2. Create the .maintenance file in current WordPress base. 371 * 3. Copy new WordPress directory over old WordPress files. 372 * 4. Upgrade WordPress to new version. 373 * 4.1. Copy all files/folders other than wp-content 374 * 4.2. Copy any language files to WP_LANG_DIR (which may differ from WP_CONTENT_DIR 375 * 4.3. Copy any new bundled themes/plugins to their respective locations 376 * 5. Delete new WordPress directory path. 377 * 6. Delete .maintenance file. 378 * 7. Remove old files. 379 * 8. Delete 'update_core' option. 380 * 381 * There are several areas of failure. For instance if PHP times out before step 382 * 6, then you will not be able to access any portion of your site. Also, since 383 * the upgrade will not continue where it left off, you will not be able to 384 * automatically remove old files and remove the 'update_core' option. This 385 * isn't that bad. 386 * 387 * If the copy of the new WordPress over the old fails, then the worse is that 388 * the new WordPress directory will remain. 389 * 390 * If it is assumed that every file will be copied over, including plugins and 391 * themes, then if you edit the default theme, you should rename it, so that 392 * your changes remain. 393 * 394 * @since 2.7.0 395 * 396 * @param string $from New release unzipped path. 397 * @param string $to Path to old WordPress installation. 398 * @return WP_Error|null WP_Error on failure, null on success. 399 */ 400function update_core($from, $to) { 401 global $wp_filesystem, $_old_files, $_new_bundled_files, $wpdb; 402 403 @set_time_limit( 300 ); 404 405 $php_version = phpversion(); 406 $mysql_version = $wpdb->db_version(); 407 $required_php_version = '5.2.4'; 408 $required_mysql_version = '5.0'; 409 $wp_version = '3.3.1'; 410 $php_compat = version_compare( $php_version, $required_php_version, '>=' ); 411 if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) ) 412 $mysql_compat = true; 413 else 414 $mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' ); 415 416 if ( !$mysql_compat || !$php_compat ) 417 $wp_filesystem->delete($from, true); 418 419 if ( !$mysql_compat && !$php_compat ) 420 return new WP_Error( 'php_mysql_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.'), $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version ) ); 421 elseif ( !$php_compat ) 422 return new WP_Error( 'php_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher. You are running version %3$s.'), $wp_version, $required_php_version, $php_version ) ); 423 elseif ( !$mysql_compat ) 424 return new WP_Error( 'mysql_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires MySQL version %2$s or higher. You are running version %3$s.'), $wp_version, $required_mysql_version, $mysql_version ) ); 425 426 // Sanity check the unzipped distribution 427 apply_filters('update_feedback', __('Verifying the unpacked files…')); 428 $distro = ''; 429 $roots = array( '/wordpress/', '/wordpress-mu/' ); 430 foreach( $roots as $root ) { 431 if ( $wp_filesystem->exists($from . $root . 'readme.html') && $wp_filesystem->exists($from . $root . 'wp-includes/version.php') ) { 432 $distro = $root; 433 break; 434 } 435 } 436 if ( !$distro ) { 437 $wp_filesystem->delete($from, true); 438 return new WP_Error('insane_distro', __('The update could not be unpacked') ); 439 } 440 441 apply_filters('update_feedback', __('Installing the latest version…')); 442 443 // Create maintenance file to signal that we are upgrading 444 $maintenance_string = '<?php $upgrading = ' . time() . '; ?>'; 445 $maintenance_file = $to . '.maintenance'; 446 $wp_filesystem->delete($maintenance_file); 447 $wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE); 448 449 // Copy new versions of WP files into place. 450 $result = _copy_dir($from . $distro, $to, array('wp-content') ); 451 452 // Custom Content Directory needs updating now. 453 // Copy Languages 454 if ( !is_wp_error($result) && $wp_filesystem->is_dir($from . $distro . 'wp-content/languages') ) { 455 if ( WP_LANG_DIR != ABSPATH . WPINC . '/languages' || @is_dir(WP_LANG_DIR) ) 456 $lang_dir = WP_LANG_DIR; 457 else 458 $lang_dir = WP_CONTENT_DIR . '/languages'; 459 460 if ( !@is_dir($lang_dir) && 0 === strpos($lang_dir, ABSPATH) ) { // Check the language directory exists first 461 $wp_filesystem->mkdir($to . str_replace(ABSPATH, '', $lang_dir), FS_CHMOD_DIR); // If it's within the ABSPATH we can handle it here, otherwise they're out of luck. 462 clearstatcache(); // for FTP, Need to clear the stat cache 463 } 464 465 if ( @is_dir($lang_dir) ) { 466 $wp_lang_dir = $wp_filesystem->find_folder($lang_dir); 467 if ( $wp_lang_dir ) 468 $result = copy_dir($from . $distro . 'wp-content/languages/', $wp_lang_dir); 469 } 470 } 471 472 // Copy New bundled plugins & themes 473 // This gives us the ability to install new plugins & themes bundled with future versions of WordPress whilst avoiding the re-install upon upgrade issue. 474 if ( !is_wp_error($result) && ( ! defined('CORE_UPGRADE_SKIP_NEW_BUNDLED') || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) ) { 475 $old_version = $GLOBALS['wp_version']; // $wp_version in local scope == new version 476 foreach ( (array) $_new_bundled_files as $file => $introduced_version ) { 477 // If $introduced version is greater than what the site was previously running 478 if ( version_compare($introduced_version, $old_version, '>') ) { 479 $directory = ('/' == $file[ strlen($file)-1 ]); 480 list($type, $filename) = explode('/', $file, 2); 481 482 if ( 'plugins' == $type ) 483 $dest = $wp_filesystem->wp_plugins_dir(); 484 elseif ( 'themes' == $type ) 485 $dest = trailingslashit($wp_filesystem->wp_themes_dir()); // Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2 486 else 487 continue; 488 489 if ( ! $directory ) { 490 if ( $wp_filesystem->exists($dest . $filename) ) 491 continue; 492 493 if ( ! $wp_filesystem->copy($from . $distro . 'wp-content/' . $file, $dest . $filename, FS_CHMOD_FILE) ) 494 $result = new WP_Error('copy_failed', __('Could not copy file.'), $dest . $filename); 495 } else { 496 if ( $wp_filesystem->is_dir($dest . $filename) ) 497 continue; 498 499 $wp_filesystem->mkdir($dest . $filename, FS_CHMOD_DIR); 500 $_result = copy_dir( $from . $distro . 'wp-content/' . $file, $dest . $filename); 501 if ( is_wp_error($_result) ) //If a error occurs partway through this final step, keep the error flowing through, but keep process going. 502 $result = $_result; 503 } 504 } 505 } //end foreach 506 } 507 508 // Handle $result error from the above blocks 509 if ( is_wp_error($result) ) { 510 $wp_filesystem->delete($maintenance_file); 511 $wp_filesystem->delete($from, true); 512 return $result; 513 } 514 515 // Remove old files 516 foreach ( $_old_files as $old_file ) { 517 $old_file = $to . $old_file; 518 if ( !$wp_filesystem->exists($old_file) ) 519 continue; 520 $wp_filesystem->delete($old_file, true); 521 } 522 523 // Upgrade DB with separate request 524 apply_filters('update_feedback', __('Upgrading database…')); 525 $db_upgrade_url = admin_url('upgrade.php?step=upgrade_db'); 526 wp_remote_post($db_upgrade_url, array('timeout' => 60)); 527 528 // Remove working directory 529 $wp_filesystem->delete($from, true); 530 531 // Force refresh of update information 532 if ( function_exists('delete_site_transient') ) 533 delete_site_transient('update_core'); 534 else 535 delete_option('update_core'); 536 537 // Remove maintenance file, we're done. 538 $wp_filesystem->delete($maintenance_file); 539 540 // If we made it this far: 541 do_action( '_core_updated_successfully', $wp_version ); 542 543 return $wp_version; 544} 545 546/** 547 * Copies a directory from one location to another via the WordPress Filesystem Abstraction. 548 * Assumes that WP_Filesystem() has already been called and setup. 549 * 550 * This is a temporary function for the 3.1 -> 3.2 upgrade only and will be removed in 3.3 551 * 552 * @ignore 553 * @since 3.2.0 554 * @see copy_dir() 555 * 556 * @param string $from source directory 557 * @param string $to destination directory 558 * @param array $skip_list a list of files/folders to skip copying 559 * @return mixed WP_Error on failure, True on success. 560 */ 561function _copy_dir($from, $to, $skip_list = array() ) { 562 global $wp_filesystem; 563 564 $dirlist = $wp_filesystem->dirlist($from); 565 566 $from = trailingslashit($from); 567 $to = trailingslashit($to); 568 569 $skip_regex = ''; 570 foreach ( (array)$skip_list as $key => $skip_file ) 571 $skip_regex .= preg_quote($skip_file, '!') . '|'; 572 573 if ( !empty($skip_regex) ) 574 $skip_regex = '!(' . rtrim($skip_regex, '|') . ')$!i'; 575 576 foreach ( (array) $dirlist as $filename => $fileinfo ) { 577 if ( !empty($skip_regex) ) 578 if ( preg_match($skip_regex, $from . $filename) ) 579 continue; 580 581 if ( 'f' == $fileinfo['type'] ) { 582 if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) { 583 // If copy failed, chmod file to 0644 and try again. 584 $wp_filesystem->chmod($to . $filename, 0644); 585 if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) 586 return new WP_Error('copy_failed', __('Could not copy file.'), $to . $filename); 587 } 588 } elseif ( 'd' == $fileinfo['type'] ) { 589 if ( !$wp_filesystem->is_dir($to . $filename) ) { 590 if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) ) 591 return new WP_Error('mkdir_failed', __('Could not create directory.'), $to . $filename); 592 } 593 $result = _copy_dir($from . $filename, $to . $filename, $skip_list); 594 if ( is_wp_error($result) ) 595 return $result; 596 } 597 } 598 return true; 599} 600 601/** 602 * Redirect to the About WordPress page after a successful upgrade. 603 * 604 * This function is only needed when the existing install is older than 3.3.0. 605 * 606 * @since 3.3.0 607 * 608 */ 609function _redirect_to_about_wordpress( $new_version ) { 610 global $wp_version, $pagenow, $action; 611 612 if ( version_compare( $wp_version, '3.3', '>=' ) ) 613 return; 614 615 // Ensure we only run this on the update-core.php page. wp_update_core() could be called in other contexts. 616 if ( 'update-core.php' != $pagenow ) 617 return; 618 619 if ( 'do-core-upgrade' != $action && 'do-core-reinstall' != $action ) 620 return; 621 622 // Load the updated default text localization domain for new strings 623 load_default_textdomain(); 624 625 // See do_core_upgrade() 626 show_message( __('WordPress updated successfully') ); 627 show_message( '<span class="hide-if-no-js">' . sprintf( __( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%s">here</a>.' ), $new_version, esc_url( admin_url( 'about.php?updated' ) ) ) . '</span>' ); 628 show_message( '<span class="hide-if-js">' . sprintf( __( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ), $new_version, esc_url( admin_url( 'about.php?updated' ) ) ) . '</span>' ); 629 echo '</div>'; 630 ?> 631<script type="text/javascript"> 632window.location = '<?php echo admin_url( 'about.php?updated' ); ?>'; 633</script> 634 <?php 635 636 // Include admin-footer.php and exit 637 include(ABSPATH . 'wp-admin/admin-footer.php'); 638 exit(); 639} 640add_action( '_core_updated_successfully', '_redirect_to_about_wordpress' );