228 lines
8.0 KiB
PHP
228 lines
8.0 KiB
PHP
<?php
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/**
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* WordPress core upgrade functionality.
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*
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* @package WordPress
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* @subpackage Administration
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* @since 2.7
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*/
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/**
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* Stores files to be deleted.
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*
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* @since 2.7
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* @global array $_old_files
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* @var array
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* @name $_old_files
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*/
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global $_old_files;
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$_old_files = array(
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'wp-admin/bookmarklet.php',
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'wp-admin/css/upload.css',
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'wp-admin/images/box-bg-left.gif',
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'wp-admin/images/box-bg-right.gif',
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'wp-admin/images/box-bg.gif',
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'wp-admin/images/box-butt-left.gif',
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'wp-admin/images/box-butt-right.gif',
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'wp-admin/images/box-butt.gif',
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'wp-admin/images/box-head-left.gif',
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'wp-admin/images/box-head-right.gif',
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'wp-admin/images/box-head.gif',
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'wp-admin/images/heading-bg.gif',
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'wp-admin/images/login-bkg-bottom.gif',
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'wp-admin/images/login-bkg-tile.gif',
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'wp-admin/images/notice.gif',
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'wp-admin/images/toggle.gif',
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'wp-admin/includes/upload.php',
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'wp-admin/js/dbx-admin-key.js',
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'wp-admin/js/link-cat.js',
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'wp-admin/profile-update.php',
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'wp-admin/templates.php',
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'wp-includes/js/dbx.js',
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'wp-includes/js/fat.js',
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'wp-includes/js/list-manipulation.js',
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'wp-includes/js/jquery/jquery.dimensions.min.js',
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'wp-includes/js/tinymce/langs/en.js',
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'wp-includes/js/tinymce/plugins/autosave/editor_plugin_src.js',
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'wp-includes/js/tinymce/plugins/autosave/langs',
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'wp-includes/js/tinymce/plugins/directionality/images',
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'wp-includes/js/tinymce/plugins/directionality/langs',
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'wp-includes/js/tinymce/plugins/inlinepopups/css',
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'wp-includes/js/tinymce/plugins/inlinepopups/images',
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'wp-includes/js/tinymce/plugins/inlinepopups/jscripts',
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'wp-includes/js/tinymce/plugins/paste/images',
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'wp-includes/js/tinymce/plugins/paste/jscripts',
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'wp-includes/js/tinymce/plugins/paste/langs',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyGoogleSpell.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspell.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspellShell.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/css/spellchecker.css',
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'wp-includes/js/tinymce/plugins/spellchecker/images',
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'wp-includes/js/tinymce/plugins/spellchecker/langs',
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'wp-includes/js/tinymce/plugins/spellchecker/tinyspell.php',
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'wp-includes/js/tinymce/plugins/wordpress/images',
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'wp-includes/js/tinymce/plugins/wordpress/langs',
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'wp-includes/js/tinymce/plugins/wordpress/popups.css',
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'wp-includes/js/tinymce/plugins/wordpress/wordpress.css',
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'wp-includes/js/tinymce/plugins/wphelp',
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'wp-includes/js/tinymce/themes/advanced/css',
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'wp-includes/js/tinymce/themes/advanced/images',
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'wp-includes/js/tinymce/themes/advanced/jscripts',
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'wp-includes/js/tinymce/themes/advanced/langs',
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'wp-includes/js/tinymce/tiny_mce_gzip.php',
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'wp-includes/js/wp-ajax.js',
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'wp-admin/admin-db.php',
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'wp-admin/cat.js',
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'wp-admin/categories.js',
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'wp-admin/custom-fields.js',
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'wp-admin/dbx-admin-key.js',
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'wp-admin/edit-comments.js',
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'wp-admin/install-rtl.css',
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'wp-admin/install.css',
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'wp-admin/upgrade-schema.php',
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'wp-admin/upload-functions.php',
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'wp-admin/upload-rtl.css',
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'wp-admin/upload.css',
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'wp-admin/upload.js',
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'wp-admin/users.js',
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'wp-admin/widgets-rtl.css',
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'wp-admin/widgets.css',
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'wp-admin/xfn.js',
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'wp-includes/js/tinymce/license.html',
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'wp-admin/cat-js.php',
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'wp-admin/edit-form-ajax-cat.php',
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'wp-admin/execute-pings.php',
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'wp-admin/import/b2.php',
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'wp-admin/inline-uploading.php',
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'wp-admin/link-categories.php',
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'wp-admin/list-manipulation.js',
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'wp-admin/list-manipulation.php',
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'wp-includes/comment-functions.php',
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'wp-includes/feed-functions.php',
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'wp-includes/functions-compat.php',
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'wp-includes/functions-formatting.php',
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'wp-includes/functions-post.php',
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'wp-includes/js/dbx-key.js',
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'wp-includes/js/tinymce/plugins/autosave/langs/cs.js',
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'wp-includes/js/tinymce/plugins/autosave/langs/sv.js',
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'wp-includes/js/tinymce/themes/advanced/editor_template_src.js',
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'wp-includes/links.php',
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'wp-includes/pluggable-functions.php',
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'wp-includes/template-functions-author.php',
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'wp-includes/template-functions-category.php',
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'wp-includes/template-functions-general.php',
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'wp-includes/template-functions-links.php',
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'wp-includes/template-functions-post.php',
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'wp-includes/wp-l10n.php',
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'wp-admin/import-b2.php',
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'wp-admin/import-blogger.php',
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'wp-admin/import-greymatter.php',
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'wp-admin/import-livejournal.php',
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'wp-admin/import-mt.php',
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'wp-admin/import-rss.php',
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'wp-admin/import-textpattern.php',
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'wp-admin/quicktags.js',
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'wp-images',
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'wp.php',
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'wp-content/themes/default/attachment.php',
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'wp-content/themes/default/images/kubrickbg.jpg',
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'wp-content/plugins/markdown.php',
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'wp-content/plugins/textile1.php',
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);
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/**
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* Upgrade the core of WordPress.
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*
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* This will create a .maintenance file at the base of the WordPress directory
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* to ensure that people can not access the web site, when the files are being
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* copied to their locations.
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*
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* The files in the {@link $_old_files} list will be removed and the new files
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* copied from the zip file after the database is upgraded.
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*
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* The steps for the upgrader for after the new release is downloaded and
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* unzipped is:
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* 1. Test unzipped location for select files to ensure that unzipped worked.
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* 2. Create the .maintenance file in current WordPress base.
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* 3. Copy new WordPress directory over old WordPress files.
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* 4. Upgrade WordPress to new version.
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* 5. Delete new WordPress directory path.
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* 6. Delete .maintenance file.
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* 7. Remove old files.
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* 8. Delete 'update_core' option.
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*
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* There are several areas of failure. For instance if PHP times out before step
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* 6, then you will not be able to access any portion of your site. Also, since
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* the upgrade will not continue where it left off, you will not be able to
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* automatically remove old files and remove the 'update_core' option. This
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* isn't that bad.
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*
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* If the copy of the new WordPress over the old fails, then the worse is that
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* the new WordPress directory will remain.
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*
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* If it is assumed that every file will be copied over, including plugins and
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* themes, then if you edit the default theme, you should rename it, so that
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* your changes remain.
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*
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* @param string $from New release unzipped path.
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* @param string $to Path to old WordPress installation.
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* @return WP_Error|null WP_Error on failure, null on success.
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*/
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function update_core($from, $to) {
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global $wp_filesystem, $_old_files;
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// Sanity check the unzipped distribution
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apply_filters('update_feedback', __('Verifying the unpacked files'));
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if ( !file_exists($from . '/wordpress/wp-settings.php') || !file_exists($from . '/wordpress/wp-admin/admin.php') ||
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!file_exists($from . '/wordpress/wp-includes/functions.php') ) {
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$wp_filesystem->delete($from, true);
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return new WP_Error('insane_distro', __('The update could not be unpacked') );
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}
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apply_filters('update_feedback', __('Installing the latest version'));
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// Create maintenance file to signal that we are upgrading
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$maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
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$maintenance_file = $to . '.maintenance';
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$wp_filesystem->delete($maintenance_file);
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$wp_filesystem->put_contents($maintenance_file, $maintenance_string, 0644);
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// Copy new versions of WP files into place.
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$result = copy_dir($from . '/wordpress', $to);
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if ( is_wp_error($result) ) {
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$wp_filesystem->delete($maintenance_file);
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//$wp_filesystem->delete($working_dir, true); //TODO: Uncomment? This DOES mean that the new files are available in the upgrade folder if it fails.
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return $result;
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}
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// Might have to do upgrade in a separate step.
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apply_filters('update_feedback', __('Upgrading database'));
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// Get new db version
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global $wp_db_version;
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require (ABSPATH . WPINC . '/version.php');
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// Upgrade db
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define('WP_INSTALLING', true);
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require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
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wp_upgrade();
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// Remove working directory
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$wp_filesystem->delete($from, true);
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// Remove maintenance file, we're done.
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$wp_filesystem->delete($maintenance_file);
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// Remove old files
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foreach ( $_old_files as $old_file ) {
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$old_file = $to . $old_file;
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if ( !file_exists($old_file) )
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continue;
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$wp_filesystem->delete($old_file, true);
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}
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// Force refresh of update information
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delete_option('update_core');
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}
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?>
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