/wp-admin/includes/update-core.php
PHP | 716 lines | 523 code | 45 blank | 148 comment | 53 complexity | 86a885d7ad1b79654eb40dcb8204bda5 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// 2.0 22'wp-admin/import-b2.php', 23'wp-admin/import-blogger.php', 24'wp-admin/import-greymatter.php', 25'wp-admin/import-livejournal.php', 26'wp-admin/import-mt.php', 27'wp-admin/import-rss.php', 28'wp-admin/import-textpattern.php', 29'wp-admin/quicktags.js', 30'wp-images/fade-butt.png', 31'wp-images/get-firefox.png', 32'wp-images/header-shadow.png', 33'wp-images/smilies', 34'wp-images/wp-small.png', 35'wp-images/wpminilogo.png', 36'wp.php', 37// 2.0.8 38'wp-includes/js/tinymce/plugins/inlinepopups/readme.txt', 39// 2.1 40'wp-admin/edit-form-ajax-cat.php', 41'wp-admin/execute-pings.php', 42'wp-admin/inline-uploading.php', 43'wp-admin/link-categories.php', 44'wp-admin/list-manipulation.js', 45'wp-admin/list-manipulation.php', 46'wp-includes/comment-functions.php', 47'wp-includes/feed-functions.php', 48'wp-includes/functions-compat.php', 49'wp-includes/functions-formatting.php', 50'wp-includes/functions-post.php', 51'wp-includes/js/dbx-key.js', 52'wp-includes/js/tinymce/plugins/autosave/langs/cs.js', 53'wp-includes/js/tinymce/plugins/autosave/langs/sv.js', 54'wp-includes/links.php', 55'wp-includes/pluggable-functions.php', 56'wp-includes/template-functions-author.php', 57'wp-includes/template-functions-category.php', 58'wp-includes/template-functions-general.php', 59'wp-includes/template-functions-links.php', 60'wp-includes/template-functions-post.php', 61'wp-includes/wp-l10n.php', 62// 2.2 63'wp-admin/cat-js.php', 64'wp-admin/import/b2.php', 65'wp-includes/js/autosave-js.php', 66'wp-includes/js/list-manipulation-js.php', 67'wp-includes/js/wp-ajax-js.php', 68// 2.3 69'wp-admin/admin-db.php', 70'wp-admin/cat.js', 71'wp-admin/categories.js', 72'wp-admin/custom-fields.js', 73'wp-admin/dbx-admin-key.js', 74'wp-admin/edit-comments.js', 75'wp-admin/install-rtl.css', 76'wp-admin/install.css', 77'wp-admin/upgrade-schema.php', 78'wp-admin/upload-functions.php', 79'wp-admin/upload-rtl.css', 80'wp-admin/upload.css', 81'wp-admin/upload.js', 82'wp-admin/users.js', 83'wp-admin/widgets-rtl.css', 84'wp-admin/widgets.css', 85'wp-admin/xfn.js', 86'wp-includes/js/tinymce/license.html', 87// 2.5 88'wp-admin/css/upload.css', 89'wp-admin/images/box-bg-left.gif', 90'wp-admin/images/box-bg-right.gif', 91'wp-admin/images/box-bg.gif', 92'wp-admin/images/box-butt-left.gif', 93'wp-admin/images/box-butt-right.gif', 94'wp-admin/images/box-butt.gif', 95'wp-admin/images/box-head-left.gif', 96'wp-admin/images/box-head-right.gif', 97'wp-admin/images/box-head.gif', 98'wp-admin/images/heading-bg.gif', 99'wp-admin/images/login-bkg-bottom.gif', 100'wp-admin/images/login-bkg-tile.gif', 101'wp-admin/images/notice.gif', 102'wp-admin/images/toggle.gif', 103'wp-admin/includes/upload.php', 104'wp-admin/js/dbx-admin-key.js', 105'wp-admin/js/link-cat.js', 106'wp-admin/profile-update.php', 107'wp-admin/templates.php', 108'wp-includes/images/wlw/WpComments.png', 109'wp-includes/images/wlw/WpIcon.png', 110'wp-includes/images/wlw/WpWatermark.png', 111'wp-includes/js/dbx.js', 112'wp-includes/js/fat.js', 113'wp-includes/js/list-manipulation.js', 114'wp-includes/js/tinymce/langs/en.js', 115'wp-includes/js/tinymce/plugins/autosave/editor_plugin_src.js', 116'wp-includes/js/tinymce/plugins/autosave/langs', 117'wp-includes/js/tinymce/plugins/directionality/images', 118'wp-includes/js/tinymce/plugins/directionality/langs', 119'wp-includes/js/tinymce/plugins/inlinepopups/css', 120'wp-includes/js/tinymce/plugins/inlinepopups/images', 121'wp-includes/js/tinymce/plugins/inlinepopups/jscripts', 122'wp-includes/js/tinymce/plugins/paste/images', 123'wp-includes/js/tinymce/plugins/paste/jscripts', 124'wp-includes/js/tinymce/plugins/paste/langs', 125'wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php', 126'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyGoogleSpell.class.php', 127'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspell.class.php', 128'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspellShell.class.php', 129'wp-includes/js/tinymce/plugins/spellchecker/css/spellchecker.css', 130'wp-includes/js/tinymce/plugins/spellchecker/images', 131'wp-includes/js/tinymce/plugins/spellchecker/langs', 132'wp-includes/js/tinymce/plugins/spellchecker/tinyspell.php', 133'wp-includes/js/tinymce/plugins/wordpress/images', 134'wp-includes/js/tinymce/plugins/wordpress/langs', 135'wp-includes/js/tinymce/plugins/wordpress/wordpress.css', 136'wp-includes/js/tinymce/plugins/wphelp', 137'wp-includes/js/tinymce/themes/advanced/css', 138'wp-includes/js/tinymce/themes/advanced/images', 139'wp-includes/js/tinymce/themes/advanced/jscripts', 140'wp-includes/js/tinymce/themes/advanced/langs', 141// 2.5.1 142'wp-includes/js/tinymce/tiny_mce_gzip.php', 143// 2.6 144'wp-admin/bookmarklet.php', 145'wp-includes/js/jquery/jquery.dimensions.min.js', 146'wp-includes/js/tinymce/plugins/wordpress/popups.css', 147'wp-includes/js/wp-ajax.js', 148// 2.7 149'wp-admin/css/press-this-ie-rtl.css', 150'wp-admin/css/press-this-ie.css', 151'wp-admin/css/upload-rtl.css', 152'wp-admin/edit-form.php', 153'wp-admin/images/comment-pill.gif', 154'wp-admin/images/comment-stalk-classic.gif', 155'wp-admin/images/comment-stalk-fresh.gif', 156'wp-admin/images/comment-stalk-rtl.gif', 157'wp-admin/images/del.png', 158'wp-admin/images/gear.png', 159'wp-admin/images/media-button-gallery.gif', 160'wp-admin/images/media-buttons.gif', 161'wp-admin/images/postbox-bg.gif', 162'wp-admin/images/tab.png', 163'wp-admin/images/tail.gif', 164'wp-admin/js/forms.js', 165'wp-admin/js/upload.js', 166'wp-admin/link-import.php', 167'wp-includes/images/audio.png', 168'wp-includes/images/css.png', 169'wp-includes/images/default.png', 170'wp-includes/images/doc.png', 171'wp-includes/images/exe.png', 172'wp-includes/images/html.png', 173'wp-includes/images/js.png', 174'wp-includes/images/pdf.png', 175'wp-includes/images/swf.png', 176'wp-includes/images/tar.png', 177'wp-includes/images/text.png', 178'wp-includes/images/video.png', 179'wp-includes/images/zip.png', 180'wp-includes/js/tinymce/tiny_mce_config.php', 181'wp-includes/js/tinymce/tiny_mce_ext.js', 182// 2.8 183'wp-admin/js/users.js', 184'wp-includes/js/swfupload/plugins/swfupload.documentready.js', 185'wp-includes/js/swfupload/plugins/swfupload.graceful_degradation.js', 186'wp-includes/js/swfupload/swfupload_f9.swf', 187'wp-includes/js/tinymce/plugins/autosave', 188'wp-includes/js/tinymce/plugins/paste/css', 189'wp-includes/js/tinymce/utils/mclayer.js', 190'wp-includes/js/tinymce/wordpress.css', 191// 2.8.5 192'wp-admin/import/btt.php', 193'wp-admin/import/jkw.php', 194// 2.9 195'wp-admin/js/page.dev.js', 196'wp-admin/js/page.js', 197'wp-admin/js/set-post-thumbnail-handler.dev.js', 198'wp-admin/js/set-post-thumbnail-handler.js', 199'wp-admin/js/slug.dev.js', 200'wp-admin/js/slug.js', 201'wp-includes/gettext.php', 202'wp-includes/js/tinymce/plugins/wordpress/js', 203'wp-includes/streams.php', 204// MU 205'README.txt', 206'htaccess.dist', 207'index-install.php', 208'wp-admin/css/mu-rtl.css', 209'wp-admin/css/mu.css', 210'wp-admin/images/site-admin.png', 211'wp-admin/includes/mu.php', 212'wp-admin/wpmu-admin.php', 213'wp-admin/wpmu-blogs.php', 214'wp-admin/wpmu-edit.php', 215'wp-admin/wpmu-options.php', 216'wp-admin/wpmu-themes.php', 217'wp-admin/wpmu-upgrade-site.php', 218'wp-admin/wpmu-users.php', 219'wp-includes/images/wordpress-mu.png', 220'wp-includes/wpmu-default-filters.php', 221'wp-includes/wpmu-functions.php', 222'wpmu-settings.php', 223// 3.0 224'wp-admin/categories.php', 225'wp-admin/edit-category-form.php', 226'wp-admin/edit-page-form.php', 227'wp-admin/edit-pages.php', 228'wp-admin/images/admin-header-footer.png', 229'wp-admin/images/browse-happy.gif', 230'wp-admin/images/ico-add.png', 231'wp-admin/images/ico-close.png', 232'wp-admin/images/ico-edit.png', 233'wp-admin/images/ico-viewpage.png', 234'wp-admin/images/fav-top.png', 235'wp-admin/images/screen-options-left.gif', 236'wp-admin/images/wp-logo-vs.gif', 237'wp-admin/images/wp-logo.gif', 238'wp-admin/import', 239'wp-admin/js/wp-gears.dev.js', 240'wp-admin/js/wp-gears.js', 241'wp-admin/options-misc.php', 242'wp-admin/page-new.php', 243'wp-admin/page.php', 244'wp-admin/rtl.css', 245'wp-admin/rtl.dev.css', 246'wp-admin/update-links.php', 247'wp-admin/wp-admin.css', 248'wp-admin/wp-admin.dev.css', 249'wp-includes/js/codepress', 250'wp-includes/js/codepress/engines/khtml.js', 251'wp-includes/js/codepress/engines/older.js', 252'wp-includes/js/jquery/autocomplete.dev.js', 253'wp-includes/js/jquery/autocomplete.js', 254'wp-includes/js/jquery/interface.js', 255'wp-includes/js/scriptaculous/prototype.js', 256'wp-includes/js/tinymce/wp-tinymce.js', 257// 3.1 258'wp-admin/edit-attachment-rows.php', 259'wp-admin/edit-link-categories.php', 260'wp-admin/edit-link-category-form.php', 261'wp-admin/edit-post-rows.php', 262'wp-admin/images/button-grad-active-vs.png', 263'wp-admin/images/button-grad-vs.png', 264'wp-admin/images/fav-arrow-vs-rtl.gif', 265'wp-admin/images/fav-arrow-vs.gif', 266'wp-admin/images/fav-top-vs.gif', 267'wp-admin/images/list-vs.png', 268'wp-admin/images/screen-options-right-up.gif', 269'wp-admin/images/screen-options-right.gif', 270'wp-admin/images/visit-site-button-grad-vs.gif', 271'wp-admin/images/visit-site-button-grad.gif', 272'wp-admin/link-category.php', 273'wp-admin/sidebar.php', 274'wp-includes/classes.php', 275'wp-includes/js/tinymce/blank.htm', 276'wp-includes/js/tinymce/plugins/media/css/content.css', 277'wp-includes/js/tinymce/plugins/media/img', 278'wp-includes/js/tinymce/plugins/safari', 279// 3.2 280'wp-admin/images/logo-login.gif', 281'wp-admin/images/star.gif', 282'wp-admin/js/list-table.dev.js', 283'wp-admin/js/list-table.js', 284'wp-includes/default-embeds.php', 285'wp-includes/js/tinymce/plugins/wordpress/img/help.gif', 286'wp-includes/js/tinymce/plugins/wordpress/img/more.gif', 287'wp-includes/js/tinymce/plugins/wordpress/img/toolbars.gif', 288'wp-includes/js/tinymce/themes/advanced/img/fm.gif', 289'wp-includes/js/tinymce/themes/advanced/img/sflogo.png', 290// 3.3 291'wp-admin/css/colors-classic-rtl.css', 292'wp-admin/css/colors-classic-rtl.dev.css', 293'wp-admin/css/colors-fresh-rtl.css', 294'wp-admin/css/colors-fresh-rtl.dev.css', 295'wp-admin/css/dashboard-rtl.css', 296'wp-admin/css/dashboard-rtl.dev.css', 297'wp-admin/css/dashboard.css', 298'wp-admin/css/dashboard.dev.css', 299'wp-admin/css/farbtastic-rtl.css', 300'wp-admin/css/global-rtl.css', 301'wp-admin/css/global-rtl.dev.css', 302'wp-admin/css/global.css', 303'wp-admin/css/global.dev.css', 304'wp-admin/css/install-rtl.css', 305'wp-admin/css/install-rtl.dev.css', 306'wp-admin/css/login-rtl.css', 307'wp-admin/css/login-rtl.dev.css', 308'wp-admin/css/login.css', 309'wp-admin/css/login.dev.css', 310'wp-admin/css/ms.css', 311'wp-admin/css/ms.dev.css', 312'wp-admin/css/nav-menu-rtl.css', 313'wp-admin/css/nav-menu-rtl.dev.css', 314'wp-admin/css/nav-menu.css', 315'wp-admin/css/nav-menu.dev.css', 316'wp-admin/css/plugin-install-rtl.css', 317'wp-admin/css/plugin-install-rtl.dev.css', 318'wp-admin/css/plugin-install.css', 319'wp-admin/css/plugin-install.dev.css', 320'wp-admin/css/press-this-rtl.css', 321'wp-admin/css/press-this-rtl.dev.css', 322'wp-admin/css/press-this.css', 323'wp-admin/css/press-this.dev.css', 324'wp-admin/css/theme-editor-rtl.css', 325'wp-admin/css/theme-editor-rtl.dev.css', 326'wp-admin/css/theme-editor.css', 327'wp-admin/css/theme-editor.dev.css', 328'wp-admin/css/theme-install-rtl.css', 329'wp-admin/css/theme-install-rtl.dev.css', 330'wp-admin/css/theme-install.css', 331'wp-admin/css/theme-install.dev.css', 332'wp-admin/css/widgets-rtl.css', 333'wp-admin/css/widgets-rtl.dev.css', 334'wp-admin/css/widgets.css', 335'wp-admin/css/widgets.dev.css', 336'wp-admin/includes/internal-linking.php', 337'wp-includes/images/admin-bar-sprite-rtl.png', 338'wp-includes/js/jquery/ui.button.js', 339'wp-includes/js/jquery/ui.core.js', 340'wp-includes/js/jquery/ui.dialog.js', 341'wp-includes/js/jquery/ui.draggable.js', 342'wp-includes/js/jquery/ui.droppable.js', 343'wp-includes/js/jquery/ui.mouse.js', 344'wp-includes/js/jquery/ui.position.js', 345'wp-includes/js/jquery/ui.resizable.js', 346'wp-includes/js/jquery/ui.selectable.js', 347'wp-includes/js/jquery/ui.sortable.js', 348'wp-includes/js/jquery/ui.tabs.js', 349'wp-includes/js/jquery/ui.widget.js', 350'wp-includes/js/l10n.dev.js', 351'wp-includes/js/l10n.js', 352'wp-includes/js/tinymce/plugins/wplink/css', 353'wp-includes/js/tinymce/plugins/wplink/img', 354'wp-includes/js/tinymce/plugins/wplink/js', 355'wp-includes/js/tinymce/themes/advanced/img/wpicons.png', 356'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/butt2.png', 357'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/button_bg.png', 358'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/down_arrow.gif', 359'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/fade-butt.png', 360'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/separator.gif', 361// Don't delete, yet: 'wp-rss.php', 362// Don't delete, yet: 'wp-rdf.php', 363// Don't delete, yet: 'wp-rss2.php', 364// Don't delete, yet: 'wp-commentsrss2.php', 365// Don't delete, yet: 'wp-atom.php', 366// Don't delete, yet: 'wp-feed.php', 367// 3.4 368'wp-admin/images/gray-star.png', 369'wp-admin/images/logo-login.png', 370'wp-admin/images/star.png', 371'wp-admin/index-extra.php', 372'wp-admin/network/index-extra.php', 373'wp-admin/user/index-extra.php', 374'wp-admin/images/screenshots/admin-flyouts.png', 375'wp-admin/images/screenshots/coediting.png', 376'wp-admin/images/screenshots/drag-and-drop.png', 377'wp-admin/images/screenshots/help-screen.png', 378'wp-admin/images/screenshots/media-icon.png', 379'wp-admin/images/screenshots/new-feature-pointer.png', 380'wp-admin/images/screenshots/welcome-screen.png', 381'wp-includes/css/editor-buttons.css', 382'wp-includes/css/editor-buttons.dev.css', 383'wp-includes/js/tinymce/plugins/paste/blank.htm', 384'wp-includes/js/tinymce/plugins/wordpress/css', 385'wp-includes/js/tinymce/plugins/wordpress/editor_plugin.dev.js', 386'wp-includes/js/tinymce/plugins/wordpress/img/embedded.png', 387'wp-includes/js/tinymce/plugins/wordpress/img/more_bug.gif', 388'wp-includes/js/tinymce/plugins/wordpress/img/page_bug.gif', 389'wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.dev.js', 390'wp-includes/js/tinymce/plugins/wpeditimage/css/editimage-rtl.css', 391'wp-includes/js/tinymce/plugins/wpeditimage/editor_plugin.dev.js', 392'wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin.dev.js', 393'wp-includes/js/tinymce/plugins/wpgallery/editor_plugin.dev.js', 394'wp-includes/js/tinymce/plugins/wpgallery/img/gallery.png', 395'wp-includes/js/tinymce/plugins/wplink/editor_plugin.dev.js', 396// Don't delete, yet: 'wp-pass.php', 397// Don't delete, yet: 'wp-register.php', 398); 399 400/** 401 * Stores new files in wp-content to copy 402 * 403 * The contents of this array indicate any new bundled plugins/themes which 404 * should be installed with the WordPress Upgrade. These items will not be 405 * re-installed in future upgrades, this behaviour is controlled by the 406 * introduced version present here being older than the current installed version. 407 * 408 * The content of this array should follow the following format: 409 * Filename (relative to wp-content) => Introduced version 410 * Directories should be noted by suffixing it with a trailing slash (/) 411 * 412 * @since 3.2.0 413 * @global array $_new_bundled_files 414 * @var array 415 * @name $_new_bundled_files 416 */ 417global $_new_bundled_files; 418 419$_new_bundled_files = array( 420'plugins/akismet/' => '2.0', 421'themes/twentyten/' => '3.0', 422'themes/twentyeleven/' => '3.2' 423); 424 425/** 426 * Upgrade the core of WordPress. 427 * 428 * This will create a .maintenance file at the base of the WordPress directory 429 * to ensure that people can not access the web site, when the files are being 430 * copied to their locations. 431 * 432 * The files in the {@link $_old_files} list will be removed and the new files 433 * copied from the zip file after the database is upgraded. 434 * 435 * The files in the {@link $_new_bundled_files} list will be added to the installation 436 * if the version is greater than or equal to the old version being upgraded. 437 * 438 * The steps for the upgrader for after the new release is downloaded and 439 * unzipped is: 440 * 1. Test unzipped location for select files to ensure that unzipped worked. 441 * 2. Create the .maintenance file in current WordPress base. 442 * 3. Copy new WordPress directory over old WordPress files. 443 * 4. Upgrade WordPress to new version. 444 * 4.1. Copy all files/folders other than wp-content 445 * 4.2. Copy any language files to WP_LANG_DIR (which may differ from WP_CONTENT_DIR 446 * 4.3. Copy any new bundled themes/plugins to their respective locations 447 * 5. Delete new WordPress directory path. 448 * 6. Delete .maintenance file. 449 * 7. Remove old files. 450 * 8. Delete 'update_core' option. 451 * 452 * There are several areas of failure. For instance if PHP times out before step 453 * 6, then you will not be able to access any portion of your site. Also, since 454 * the upgrade will not continue where it left off, you will not be able to 455 * automatically remove old files and remove the 'update_core' option. This 456 * isn't that bad. 457 * 458 * If the copy of the new WordPress over the old fails, then the worse is that 459 * the new WordPress directory will remain. 460 * 461 * If it is assumed that every file will be copied over, including plugins and 462 * themes, then if you edit the default theme, you should rename it, so that 463 * your changes remain. 464 * 465 * @since 2.7.0 466 * 467 * @param string $from New release unzipped path. 468 * @param string $to Path to old WordPress installation. 469 * @return WP_Error|null WP_Error on failure, null on success. 470 */ 471function update_core($from, $to) { 472 global $wp_filesystem, $_old_files, $_new_bundled_files, $wpdb; 473 474 @set_time_limit( 300 ); 475 476 $php_version = phpversion(); 477 $mysql_version = $wpdb->db_version(); 478 $required_php_version = '5.2.4'; 479 $required_mysql_version = '5.0'; 480 $wp_version = '3.4.2'; 481 $php_compat = version_compare( $php_version, $required_php_version, '>=' ); 482 if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) ) 483 $mysql_compat = true; 484 else 485 $mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' ); 486 487 if ( !$mysql_compat || !$php_compat ) 488 $wp_filesystem->delete($from, true); 489 490 if ( !$mysql_compat && !$php_compat ) 491 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, $mysql_version ) ); 492 elseif ( !$php_compat ) 493 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, $php_version ) ); 494 elseif ( !$mysql_compat ) 495 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 ) ); 496 497 // Sanity check the unzipped distribution 498 apply_filters('update_feedback', __('Verifying the unpacked files…')); 499 $distro = ''; 500 $roots = array( '/wordpress/', '/wordpress-mu/' ); 501 foreach( $roots as $root ) { 502 if ( $wp_filesystem->exists($from . $root . 'readme.html') && $wp_filesystem->exists($from . $root . 'wp-includes/version.php') ) { 503 $distro = $root; 504 break; 505 } 506 } 507 if ( !$distro ) { 508 $wp_filesystem->delete($from, true); 509 return new WP_Error('insane_distro', __('The update could not be unpacked') ); 510 } 511 512 apply_filters('update_feedback', __('Installing the latest version…')); 513 514 // Create maintenance file to signal that we are upgrading 515 $maintenance_string = '<?php $upgrading = ' . time() . '; ?>'; 516 $maintenance_file = $to . '.maintenance'; 517 $wp_filesystem->delete($maintenance_file); 518 $wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE); 519 520 // Copy new versions of WP files into place. 521 $result = _copy_dir($from . $distro, $to, array('wp-content') ); 522 523 // Custom Content Directory needs updating now. 524 // Copy Languages 525 if ( !is_wp_error($result) && $wp_filesystem->is_dir($from . $distro . 'wp-content/languages') ) { 526 if ( WP_LANG_DIR != ABSPATH . WPINC . '/languages' || @is_dir(WP_LANG_DIR) ) 527 $lang_dir = WP_LANG_DIR; 528 else 529 $lang_dir = WP_CONTENT_DIR . '/languages'; 530 531 if ( !@is_dir($lang_dir) && 0 === strpos($lang_dir, ABSPATH) ) { // Check the language directory exists first 532 $wp_filesystem->mkdir($to . str_replace(ABSPATH, '', $lang_dir), FS_CHMOD_DIR); // If it's within the ABSPATH we can handle it here, otherwise they're out of luck. 533 clearstatcache(); // for FTP, Need to clear the stat cache 534 } 535 536 if ( @is_dir($lang_dir) ) { 537 $wp_lang_dir = $wp_filesystem->find_folder($lang_dir); 538 if ( $wp_lang_dir ) 539 $result = copy_dir($from . $distro . 'wp-content/languages/', $wp_lang_dir); 540 } 541 } 542 543 // Copy New bundled plugins & themes 544 // This gives us the ability to install new plugins & themes bundled with future versions of WordPress whilst avoiding the re-install upon upgrade issue. 545 if ( !is_wp_error($result) && ( ! defined('CORE_UPGRADE_SKIP_NEW_BUNDLED') || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) ) { 546 $old_version = $GLOBALS['wp_version']; // $wp_version in local scope == new version 547 foreach ( (array) $_new_bundled_files as $file => $introduced_version ) { 548 // If $introduced version is greater than what the site was previously running 549 if ( version_compare($introduced_version, $old_version, '>') ) { 550 $directory = ('/' == $file[ strlen($file)-1 ]); 551 list($type, $filename) = explode('/', $file, 2); 552 553 if ( 'plugins' == $type ) 554 $dest = $wp_filesystem->wp_plugins_dir(); 555 elseif ( 'themes' == $type ) 556 $dest = trailingslashit($wp_filesystem->wp_themes_dir()); // Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2 557 else 558 continue; 559 560 if ( ! $directory ) { 561 if ( $wp_filesystem->exists($dest . $filename) ) 562 continue; 563 564 if ( ! $wp_filesystem->copy($from . $distro . 'wp-content/' . $file, $dest . $filename, FS_CHMOD_FILE) ) 565 $result = new WP_Error('copy_failed', __('Could not copy file.'), $dest . $filename); 566 } else { 567 if ( $wp_filesystem->is_dir($dest . $filename) ) 568 continue; 569 570 $wp_filesystem->mkdir($dest . $filename, FS_CHMOD_DIR); 571 $_result = copy_dir( $from . $distro . 'wp-content/' . $file, $dest . $filename); 572 if ( is_wp_error($_result) ) //If a error occurs partway through this final step, keep the error flowing through, but keep process going. 573 $result = $_result; 574 } 575 } 576 } //end foreach 577 } 578 579 // Handle $result error from the above blocks 580 if ( is_wp_error($result) ) { 581 $wp_filesystem->delete($maintenance_file); 582 $wp_filesystem->delete($from, true); 583 return $result; 584 } 585 586 // Remove old files 587 foreach ( $_old_files as $old_file ) { 588 $old_file = $to . $old_file; 589 if ( !$wp_filesystem->exists($old_file) ) 590 continue; 591 $wp_filesystem->delete($old_file, true); 592 } 593 594 // Upgrade DB with separate request 595 apply_filters('update_feedback', __('Upgrading database…')); 596 $db_upgrade_url = admin_url('upgrade.php?step=upgrade_db'); 597 wp_remote_post($db_upgrade_url, array('timeout' => 60)); 598 599 // Remove working directory 600 $wp_filesystem->delete($from, true); 601 602 // Force refresh of update information 603 if ( function_exists('delete_site_transient') ) 604 delete_site_transient('update_core'); 605 else 606 delete_option('update_core'); 607 608 // Remove maintenance file, we're done. 609 $wp_filesystem->delete($maintenance_file); 610 611 // If we made it this far: 612 do_action( '_core_updated_successfully', $wp_version ); 613 614 return $wp_version; 615} 616 617/** 618 * Copies a directory from one location to another via the WordPress Filesystem Abstraction. 619 * Assumes that WP_Filesystem() has already been called and setup. 620 * 621 * This is a temporary function for the 3.1 -> 3.2 upgrade only and will be removed in 3.3 622 * 623 * @ignore 624 * @since 3.2.0 625 * @see copy_dir() 626 * 627 * @param string $from source directory 628 * @param string $to destination directory 629 * @param array $skip_list a list of files/folders to skip copying 630 * @return mixed WP_Error on failure, True on success. 631 */ 632function _copy_dir($from, $to, $skip_list = array() ) { 633 global $wp_filesystem; 634 635 $dirlist = $wp_filesystem->dirlist($from); 636 637 $from = trailingslashit($from); 638 $to = trailingslashit($to); 639 640 $skip_regex = ''; 641 foreach ( (array)$skip_list as $key => $skip_file ) 642 $skip_regex .= preg_quote($skip_file, '!') . '|'; 643 644 if ( !empty($skip_regex) ) 645 $skip_regex = '!(' . rtrim($skip_regex, '|') . ')$!i'; 646 647 foreach ( (array) $dirlist as $filename => $fileinfo ) { 648 if ( !empty($skip_regex) ) 649 if ( preg_match($skip_regex, $from . $filename) ) 650 continue; 651 652 if ( 'f' == $fileinfo['type'] ) { 653 if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) { 654 // If copy failed, chmod file to 0644 and try again. 655 $wp_filesystem->chmod($to . $filename, 0644); 656 if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) 657 return new WP_Error('copy_failed', __('Could not copy file.'), $to . $filename); 658 } 659 } elseif ( 'd' == $fileinfo['type'] ) { 660 if ( !$wp_filesystem->is_dir($to . $filename) ) { 661 if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) ) 662 return new WP_Error('mkdir_failed', __('Could not create directory.'), $to . $filename); 663 } 664 $result = _copy_dir($from . $filename, $to . $filename, $skip_list); 665 if ( is_wp_error($result) ) 666 return $result; 667 } 668 } 669 return true; 670} 671 672/** 673 * Redirect to the About WordPress page after a successful upgrade. 674 * 675 * This function is only needed when the existing install is older than 3.4.0. 676 * 677 * @since 3.3.0 678 * 679 */ 680function _redirect_to_about_wordpress( $new_version ) { 681 global $wp_version, $pagenow, $action; 682 683 if ( version_compare( $wp_version, '3.5-alpha', '>=' ) ) 684 return; 685 686 // Ensure we only run this on the update-core.php page. wp_update_core() could be called in other contexts. 687 if ( 'update-core.php' != $pagenow ) 688 return; 689 690 if ( 'do-core-upgrade' != $action && 'do-core-reinstall' != $action ) 691 return; 692 693 // Load the updated default text localization domain for new strings 694 load_default_textdomain(); 695 696 // See do_core_upgrade() 697 show_message( __('WordPress updated successfully') ); 698 699 $js_message = __( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%s">here</a>.' ); 700 $js_message = str_replace( '"%s"', '"%2$s"', $js_message ); // in lieu of breaking the string. 701 702 // self_admin_url() won't exist when upgrading from <= 3.0, so relative URLs are intentional. 703 show_message( '<span class="hide-if-no-js">' . sprintf( $js_message, $new_version, 'about.php?updated' ) . '</span>' ); 704 show_message( '<span class="hide-if-js">' . sprintf( __( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ), $new_version, 'about.php?updated' ) . '</span>' ); 705 echo '</div>'; 706 ?> 707<script type="text/javascript"> 708window.location = 'about.php?updated'; 709</script> 710 <?php 711 712 // Include admin-footer.php and exit 713 include(ABSPATH . 'wp-admin/admin-footer.php'); 714 exit(); 715} 716add_action( '_core_updated_successfully', '_redirect_to_about_wordpress' );