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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 */ 18 global $_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 ); 246 247 /** 248 * Stores new files in wp-content to copy 249 * 250 * The contents of this array indicate any new bundled plugins/themes which 251 * should be installed with the WordPress Upgrade. These items will not be 252 * re-installed in future upgrades, this behaviour is controlled by the 253 * introduced version present here being older than the current installed version. 254 * 255 * The content of this array should follow the following format: 256 * Filename (relative to wp-content) => Introduced version 257 * Directories should be noted by suffixing it with a trailing slash (/) 258 * 259 * @since 3.2 260 * @global array $_new_bundled_files 261 * @var array 262 * @name $_new_bundled_files 263 */ 264 global $_new_bundled_files; 265 266 $_new_bundled_files = array( 267 'plugins/akismet/' => '2.0', 268 'themes/twentyten/' => '3.0', 269 'themes/twentyeleven/' => '3.2' 270 ); 271 272 /** 273 * Upgrade the core of WordPress. 274 * 275 * This will create a .maintenance file at the base of the WordPress directory 276 * to ensure that people can not access the web site, when the files are being 277 * copied to their locations. 278 * 279 * The files in the {@link $_old_files} list will be removed and the new files 280 * copied from the zip file after the database is upgraded. 281 * 282 * The files in the {@link $_new_bundled_files} list will be added to the installation 283 * if the version is greater than or equal to the old version being upgraded. 284 * 285 * The steps for the upgrader for after the new release is downloaded and 286 * unzipped is: 287 * 1. Test unzipped location for select files to ensure that unzipped worked. 288 * 2. Create the .maintenance file in current WordPress base. 289 * 3. Copy new WordPress directory over old WordPress files. 290 * 4. Upgrade WordPress to new version. 291 * 4.1. Copy all files/folders other than wp-content 292 * 4.2. Copy any language files to WP_LANG_DIR (which may differ from WP_CONTENT_DIR 293 * 4.3. Copy any new bundled themes/plugins to their respective locations 294 * 5. Delete new WordPress directory path. 295 * 6. Delete .maintenance file. 296 * 7. Remove old files. 297 * 8. Delete 'update_core' option. 298 * 299 * There are several areas of failure. For instance if PHP times out before step 300 * 6, then you will not be able to access any portion of your site. Also, since 301 * the upgrade will not continue where it left off, you will not be able to 302 * automatically remove old files and remove the 'update_core' option. This 303 * isn't that bad. 304 * 305 * If the copy of the new WordPress over the old fails, then the worse is that 306 * the new WordPress directory will remain. 307 * 308 * If it is assumed that every file will be copied over, including plugins and 309 * themes, then if you edit the default theme, you should rename it, so that 310 * your changes remain. 311 * 312 * @since 2.7.0 313 * 314 * @param string $from New release unzipped path. 315 * @param string $to Path to old WordPress installation. 316 * @return WP_Error|null WP_Error on failure, null on success. 317 */ 318 function update_core($from, $to) { 319 global $wp_filesystem, $_old_files, $_new_bundled_files, $wpdb; 320 321 @set_time_limit( 300 ); 322 323 $php_version = phpversion(); 324 $mysql_version = $wpdb->db_version(); 325 $required_php_version = '5.2.4'; 326 $required_mysql_version = '5.0'; 327 $wp_version = '3.2'; 328 $php_compat = version_compare( $php_version, $required_php_version, '>=' ); 329 $mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' ) || file_exists( WP_CONTENT_DIR . '/db.php' ); 330 331 if ( !$mysql_compat || !$php_compat ) 332 $wp_filesystem->delete($from, true); 333 334 if ( !$mysql_compat && !$php_compat ) 335 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, $mysql_version ) ); 336 elseif ( !$php_compat ) 337 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, $php_version ) ); 338 elseif ( !$mysql_compat ) 339 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 ) ); 340 341 // Sanity check the unzipped distribution 342 apply_filters('update_feedback', __('Verifying the unpacked files…')); 343 $distro = ''; 344 $roots = array( '/wordpress/', '/wordpress-mu/' ); 345 foreach( $roots as $root ) { 346 if ( $wp_filesystem->exists($from . $root . 'wp-settings.php') && $wp_filesystem->exists($from . $root . 'wp-admin/admin.php') && 347 $wp_filesystem->exists($from . $root . 'wp-includes/functions.php') ) { 348 $distro = $root; 349 break; 350 } 351 } 352 if ( !$distro ) { 353 $wp_filesystem->delete($from, true); 354 return new WP_Error('insane_distro', __('The update could not be unpacked') ); 355 } 356 357 apply_filters('update_feedback', __('Installing the latest version…')); 358 359 // Create maintenance file to signal that we are upgrading 360 $maintenance_string = '<?php $upgrading = ' . time() . '; ?>'; 361 $maintenance_file = $to . '.maintenance'; 362 $wp_filesystem->delete($maintenance_file); 363 $wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE); 364 365 // Copy new versions of WP files into place. 366 $result = _copy_dir($from . $distro, $to, array('wp-content') ); 367 368 // Custom Content Directory needs updating now. 369 // Copy Languages 370 if ( !is_wp_error($result) && $wp_filesystem->is_dir($from . $distro . 'wp-content/languages') ) { 371 if ( WP_LANG_DIR != ABSPATH . WPINC . '/languages' || @is_dir(WP_LANG_DIR) ) 372 $lang_dir = WP_LANG_DIR; 373 else 374 $lang_dir = WP_CONTENT_DIR . '/languages'; 375 376 if ( !@is_dir($lang_dir) && 0 === strpos($lang_dir, ABSPATH) ) { // Check the language directory exists first 377 $wp_filesystem->mkdir($to . str_replace($lang_dir, ABSPATH, ''), FS_CHMOD_DIR); // If it's within the ABSPATH we can handle it here, otherwise they're out of luck. 378 clearstatcache(); // for FTP, Need to clear the stat cache 379 } 380 381 if ( @is_dir($lang_dir) ) { 382 $wp_lang_dir = $wp_filesystem->find_folder($lang_dir); 383 if ( $wp_lang_dir ) 384 $result = copy_dir($from . $distro . 'wp-content/languages/', $wp_lang_dir); 385 } 386 } 387 388 // Copy New bundled plugins & themes 389 // This gives us the ability to install new plugins & themes bundled with future versions of WordPress whilst avoiding the re-install upon upgrade issue. 390 if ( !is_wp_error($result) && ( ! defined('CORE_UPGRADE_SKIP_NEW_BUNDLED') || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) ) { 391 $old_version = $GLOBALS['wp_version']; // $wp_version in local scope == new version 392 foreach ( (array) $_new_bundled_files as $file => $introduced_version ) { 393 // If $introduced version is greater than what the site was previously running 394 if ( version_compare($introduced_version, $old_version, '>') ) { 395 $directory = ('/' == $file[ strlen($file)-1 ]); 396 list($type, $filename) = explode('/', $file, 2); 397 398 if ( 'plugins' == $type ) 399 $dest = $wp_filesystem->wp_plugins_dir(); 400 elseif ( 'themes' == $type ) 401 $dest = trailingslashit($wp_filesystem->wp_themes_dir()); // Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2 402 else 403 continue; 404 405 if ( ! $directory ) { 406 if ( $wp_filesystem->exists($dest . $filename) ) 407 continue; 408 409 if ( ! $wp_filesystem->copy($from . $distro . 'wp-content/' . $file, $dest . $filename, FS_CHMOD_FILE) ) 410 $result = new WP_Error('copy_failed', __('Could not copy file.'), $dest . $filename); 411 } else { 412 if ( $wp_filesystem->is_dir($dest . $filename) ) 413 continue; 414 415 $wp_filesystem->mkdir($dest . $filename, FS_CHMOD_DIR); 416 $_result = copy_dir( $from . $distro . 'wp-content/' . $file, $dest . $filename); 417 if ( is_wp_error($_result) ) //If a error occurs partway through this final step, keep the error flowing through, but keep process going. 418 $result = $_result; 419 } 420 } 421 } //end foreach 422 } 423 424 // Handle $result error from the above blocks 425 if ( is_wp_error($result) ) { 426 $wp_filesystem->delete($maintenance_file); 427 $wp_filesystem->delete($from, true); 428 return $result; 429 } 430 431 // Remove old files 432 foreach ( $_old_files as $old_file ) { 433 $old_file = $to . $old_file; 434 if ( !$wp_filesystem->exists($old_file) ) 435 continue; 436 $wp_filesystem->delete($old_file, true); 437 } 438 439 // Upgrade DB with separate request 440 apply_filters('update_feedback', __('Upgrading database…')); 441 $db_upgrade_url = admin_url('upgrade.php?step=upgrade_db'); 442 wp_remote_post($db_upgrade_url, array('timeout' => 60)); 443 444 // Remove working directory 445 $wp_filesystem->delete($from, true); 446 447 // Force refresh of update information 448 if ( function_exists('delete_site_transient') ) 449 delete_site_transient('update_core'); 450 else 451 delete_option('update_core'); 452 453 // Remove maintenance file, we're done. 454 $wp_filesystem->delete($maintenance_file); 455 } 456 457 /** 458 * Copies a directory from one location to another via the WordPress Filesystem Abstraction. 459 * Assumes that WP_Filesystem() has already been called and setup. 460 * 461 * This is a temporary function for the 3.1 -> 3.2 upgrade only and will be removed in 3.3 462 * 463 * @ignore 464 * @since 3.2 465 * @see copy_dir() 466 * 467 * @param string $from source directory 468 * @param string $to destination directory 469 * @param array $skip_list a list of files/folders to skip copying 470 * @return mixed WP_Error on failure, True on success. 471 */ 472 function _copy_dir($from, $to, $skip_list = array() ) { 473 global $wp_filesystem; 474 475 $dirlist = $wp_filesystem->dirlist($from); 476 477 $from = trailingslashit($from); 478 $to = trailingslashit($to); 479 480 $skip_regex = ''; 481 foreach ( (array)$skip_list as $key => $skip_file ) 482 $skip_regex .= preg_quote($skip_file, '!') . '|'; 483 484 if ( !empty($skip_regex) ) 485 $skip_regex = '!(' . rtrim($skip_regex, '|') . ')$!i'; 486 487 foreach ( (array) $dirlist as $filename => $fileinfo ) { 488 if ( !empty($skip_regex) ) 489 if ( preg_match($skip_regex, $from . $filename) ) 490 continue; 491 492 if ( 'f' == $fileinfo['type'] ) { 493 if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) { 494 // If copy failed, chmod file to 0644 and try again. 495 $wp_filesystem->chmod($to . $filename, 0644); 496 if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) 497 return new WP_Error('copy_failed', __('Could not copy file.'), $to . $filename); 498 } 499 } elseif ( 'd' == $fileinfo['type'] ) { 500 if ( !$wp_filesystem->is_dir($to . $filename) ) { 501 if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) ) 502 return new WP_Error('mkdir_failed', __('Could not create directory.'), $to . $filename); 503 } 504 $result = _copy_dir($from . $filename, $to . $filename, $skip_list); 505 if ( is_wp_error($result) ) 506 return $result; 507 } 508 } 509 return true; 510 } 511 512 ?>
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| Generated: Wed Jun 1 08:30:02 2011 |
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