diff -r 53cff4b4a802 -r bde1974c263b web/wp-admin/includes/update-core.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-admin/includes/update-core.php	Wed Feb 03 15:37:20 2010 +0000
@@ -0,0 +1,290 @@
+<?php
+/**
+ * WordPress core upgrade functionality.
+ *
+ * @package WordPress
+ * @subpackage Administration
+ * @since 2.7.0
+ */
+
+/**
+ * Stores files to be deleted.
+ *
+ * @since 2.7.0
+ * @global array $_old_files
+ * @var array
+ * @name $_old_files
+ */
+global $_old_files;
+
+$_old_files = array(
+'wp-admin/bookmarklet.php',
+'wp-admin/css/upload.css',
+'wp-admin/css/upload-rtl.css',
+'wp-admin/css/press-this-ie.css',
+'wp-admin/css/press-this-ie-rtl.css',
+'wp-admin/edit-form.php',
+'wp-admin/link-import.php',
+'wp-admin/images/box-bg-left.gif',
+'wp-admin/images/box-bg-right.gif',
+'wp-admin/images/box-bg.gif',
+'wp-admin/images/box-butt-left.gif',
+'wp-admin/images/box-butt-right.gif',
+'wp-admin/images/box-butt.gif',
+'wp-admin/images/box-head-left.gif',
+'wp-admin/images/box-head-right.gif',
+'wp-admin/images/box-head.gif',
+'wp-admin/images/heading-bg.gif',
+'wp-admin/images/login-bkg-bottom.gif',
+'wp-admin/images/login-bkg-tile.gif',
+'wp-admin/images/notice.gif',
+'wp-admin/images/toggle.gif',
+'wp-admin/images/comment-stalk-classic.gif',
+'wp-admin/images/comment-stalk-fresh.gif',
+'wp-admin/images/comment-stalk-rtl.gif',
+'wp-admin/images/comment-pill.gif',
+'wp-admin/images/del.png',
+'wp-admin/images/media-button-gallery.gif',
+'wp-admin/images/media-buttons.gif',
+'wp-admin/images/tail.gif',
+'wp-admin/images/gear.png',
+'wp-admin/images/tab.png',
+'wp-admin/images/postbox-bg.gif',
+'wp-admin/includes/upload.php',
+'wp-admin/js/dbx-admin-key.js',
+'wp-admin/js/link-cat.js',
+'wp-admin/js/forms.js',
+'wp-admin/js/upload.js',
+'wp-admin/js/set-post-thumbnail-handler.js',
+'wp-admin/js/set-post-thumbnail-handler.dev.js',
+'wp-admin/js/page.js',
+'wp-admin/js/page.dev.js',
+'wp-admin/js/slug.js',
+'wp-admin/js/slug.dev.js',
+'wp-admin/profile-update.php',
+'wp-admin/templates.php',
+'wp-includes/images/audio.png',
+'wp-includes/images/css.png',
+'wp-includes/images/default.png',
+'wp-includes/images/doc.png',
+'wp-includes/images/exe.png',
+'wp-includes/images/html.png',
+'wp-includes/images/js.png',
+'wp-includes/images/pdf.png',
+'wp-includes/images/swf.png',
+'wp-includes/images/tar.png',
+'wp-includes/images/text.png',
+'wp-includes/images/video.png',
+'wp-includes/images/zip.png',
+'wp-includes/js/dbx.js',
+'wp-includes/js/fat.js',
+'wp-includes/js/list-manipulation.js',
+'wp-includes/js/jquery/jquery.dimensions.min.js',
+'wp-includes/js/tinymce/langs/en.js',
+'wp-includes/js/tinymce/plugins/autosave/editor_plugin_src.js',
+'wp-includes/js/tinymce/plugins/autosave/langs',
+'wp-includes/js/tinymce/plugins/directionality/images',
+'wp-includes/js/tinymce/plugins/directionality/langs',
+'wp-includes/js/tinymce/plugins/inlinepopups/css',
+'wp-includes/js/tinymce/plugins/inlinepopups/images',
+'wp-includes/js/tinymce/plugins/inlinepopups/jscripts',
+'wp-includes/js/tinymce/plugins/paste/images',
+'wp-includes/js/tinymce/plugins/paste/jscripts',
+'wp-includes/js/tinymce/plugins/paste/langs',
+'wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php',
+'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyGoogleSpell.class.php',
+'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspell.class.php',
+'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspellShell.class.php',
+'wp-includes/js/tinymce/plugins/spellchecker/css/spellchecker.css',
+'wp-includes/js/tinymce/plugins/spellchecker/images',
+'wp-includes/js/tinymce/plugins/spellchecker/langs',
+'wp-includes/js/tinymce/plugins/spellchecker/tinyspell.php',
+'wp-includes/js/tinymce/plugins/wordpress/images',
+'wp-includes/js/tinymce/plugins/wordpress/langs',
+'wp-includes/js/tinymce/plugins/wordpress/popups.css',
+'wp-includes/js/tinymce/plugins/wordpress/wordpress.css',
+'wp-includes/js/tinymce/plugins/wphelp',
+'wp-includes/js/tinymce/themes/advanced/css',
+'wp-includes/js/tinymce/themes/advanced/images',
+'wp-includes/js/tinymce/themes/advanced/jscripts',
+'wp-includes/js/tinymce/themes/advanced/langs',
+'wp-includes/js/tinymce/tiny_mce_gzip.php',
+'wp-includes/js/wp-ajax.js',
+'wp-admin/admin-db.php',
+'wp-admin/cat.js',
+'wp-admin/categories.js',
+'wp-admin/custom-fields.js',
+'wp-admin/dbx-admin-key.js',
+'wp-admin/edit-comments.js',
+'wp-admin/install-rtl.css',
+'wp-admin/install.css',
+'wp-admin/upgrade-schema.php',
+'wp-admin/upload-functions.php',
+'wp-admin/upload-rtl.css',
+'wp-admin/upload.css',
+'wp-admin/upload.js',
+'wp-admin/users.js',
+'wp-admin/widgets-rtl.css',
+'wp-admin/widgets.css',
+'wp-admin/xfn.js',
+'wp-includes/js/tinymce/license.html',
+'wp-admin/cat-js.php',
+'wp-admin/edit-form-ajax-cat.php',
+'wp-admin/execute-pings.php',
+'wp-admin/import/b2.php',
+'wp-admin/import/btt.php',
+'wp-admin/import/jkw.php',
+'wp-admin/inline-uploading.php',
+'wp-admin/link-categories.php',
+'wp-admin/list-manipulation.js',
+'wp-admin/list-manipulation.php',
+'wp-includes/comment-functions.php',
+'wp-includes/feed-functions.php',
+'wp-includes/functions-compat.php',
+'wp-includes/functions-formatting.php',
+'wp-includes/functions-post.php',
+'wp-includes/js/dbx-key.js',
+'wp-includes/js/tinymce/plugins/autosave/langs/cs.js',
+'wp-includes/js/tinymce/plugins/autosave/langs/sv.js',
+'wp-includes/js/tinymce/themes/advanced/editor_template_src.js',
+'wp-includes/links.php',
+'wp-includes/pluggable-functions.php',
+'wp-includes/template-functions-author.php',
+'wp-includes/template-functions-category.php',
+'wp-includes/template-functions-general.php',
+'wp-includes/template-functions-links.php',
+'wp-includes/template-functions-post.php',
+'wp-includes/wp-l10n.php',
+'wp-admin/import-b2.php',
+'wp-admin/import-blogger.php',
+'wp-admin/import-greymatter.php',
+'wp-admin/import-livejournal.php',
+'wp-admin/import-mt.php',
+'wp-admin/import-rss.php',
+'wp-admin/import-textpattern.php',
+'wp-admin/quicktags.js',
+'wp-images/fade-butt.png',
+'wp-images/get-firefox.png',
+'wp-images/header-shadow.png',
+'wp-images/smilies',
+'wp-images/wp-small.png',
+'wp-images/wpminilogo.png',
+'wp.php',
+'wp-includes/gettext.php',
+'wp-includes/streams.php'
+);
+
+/**
+ * Upgrade the core of WordPress.
+ *
+ * This will create a .maintenance file at the base of the WordPress directory
+ * to ensure that people can not access the web site, when the files are being
+ * copied to their locations.
+ *
+ * The files in the {@link $_old_files} list will be removed and the new files
+ * copied from the zip file after the database is upgraded.
+ *
+ * The steps for the upgrader for after the new release is downloaded and
+ * unzipped is:
+ *   1. Test unzipped location for select files to ensure that unzipped worked.
+ *   2. Create the .maintenance file in current WordPress base.
+ *   3. Copy new WordPress directory over old WordPress files.
+ *   4. Upgrade WordPress to new version.
+ *   5. Delete new WordPress directory path.
+ *   6. Delete .maintenance file.
+ *   7. Remove old files.
+ *   8. Delete 'update_core' option.
+ *
+ * There are several areas of failure. For instance if PHP times out before step
+ * 6, then you will not be able to access any portion of your site. Also, since
+ * the upgrade will not continue where it left off, you will not be able to
+ * automatically remove old files and remove the 'update_core' option. This
+ * isn't that bad.
+ *
+ * If the copy of the new WordPress over the old fails, then the worse is that
+ * the new WordPress directory will remain.
+ *
+ * If it is assumed that every file will be copied over, including plugins and
+ * themes, then if you edit the default theme, you should rename it, so that
+ * your changes remain.
+ *
+ * @since 2.7.0
+ *
+ * @param string $from New release unzipped path.
+ * @param string $to Path to old WordPress installation.
+ * @return WP_Error|null WP_Error on failure, null on success.
+ */
+function update_core($from, $to) {
+	global $wp_filesystem, $_old_files, $wpdb;
+
+	@set_time_limit( 300 );
+
+	$php_version    = phpversion();
+	$mysql_version  = $wpdb->db_version();
+	$required_php_version = '4.3';
+	$required_mysql_version = '4.1.2';
+	$wp_version = '2.9.1';
+	$php_compat     = version_compare( $php_version, $required_php_version, '>=' );
+	$mysql_compat   = version_compare( $mysql_version, $required_mysql_version, '>=' ) || file_exists( WP_CONTENT_DIR . '/db.php' );
+
+	if ( !$mysql_compat || !$php_compat )
+		$wp_filesystem->delete($from, true);
+
+	if ( !$mysql_compat && !$php_compat )
+		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, $mysql_version ) );
+	elseif ( !$php_compat )
+		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, $php_version ) );
+	elseif ( !$mysql_compat )
+		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, $mysql_version ) );
+
+	// Sanity check the unzipped distribution
+	apply_filters('update_feedback', __('Verifying the unpacked files'));
+	if ( !$wp_filesystem->exists($from . '/wordpress/wp-settings.php') || !$wp_filesystem->exists($from . '/wordpress/wp-admin/admin.php') ||
+		!$wp_filesystem->exists($from . '/wordpress/wp-includes/functions.php') ) {
+		$wp_filesystem->delete($from, true);
+		return new WP_Error('insane_distro', __('The update could not be unpacked') );
+	}
+
+	apply_filters('update_feedback', __('Installing the latest version'));
+
+	// Create maintenance file to signal that we are upgrading
+	$maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
+	$maintenance_file = $to . '.maintenance';
+	$wp_filesystem->delete($maintenance_file);
+	$wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE);
+
+	// Copy new versions of WP files into place.
+	$result = copy_dir($from . '/wordpress', $to);
+	if ( is_wp_error($result) ) {
+		$wp_filesystem->delete($maintenance_file);
+		$wp_filesystem->delete($from, true);
+		return $result;
+	}
+
+	// Remove old files
+	foreach ( $_old_files as $old_file ) {
+		$old_file = $to . $old_file;
+		if ( !$wp_filesystem->exists($old_file) )
+			continue;
+		$wp_filesystem->delete($old_file, true);
+	}
+
+	// Upgrade DB with separate request
+	apply_filters('update_feedback', __('Upgrading database'));
+	$db_upgrade_url = admin_url('upgrade.php?step=upgrade_db');
+	wp_remote_post($db_upgrade_url, array('timeout' => 60));
+
+	// Remove working directory
+	$wp_filesystem->delete($from, true);
+
+	// Force refresh of update information
+	if ( function_exists('delete_transient') )
+		delete_transient('update_core');
+	else
+		delete_option('update_core');
+
+	// Remove maintenance file, we're done.
+	$wp_filesystem->delete($maintenance_file);
+}
+
+?>