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+<?php
+
+/**
+ * @file
+ * Subclasses of the Updater class to update Drupal core knows how to update.
+ * At this time, only modules and themes are supported.
+ */
+
+/**
+ * Class for updating modules using FileTransfer classes via authorize.php.
+ */
+class ModuleUpdater extends Updater implements DrupalUpdaterInterface {
+
+ /**
+ * Return the directory where a module should be installed.
+ *
+ * If the module is already installed, drupal_get_path() will return
+ * a valid path and we should install it there (although we need to use an
+ * absolute path, so we prepend DRUPAL_ROOT). If we're installing a new
+ * module, we always want it to go into sites/all/modules, since that's
+ * where all the documentation recommends users install their modules, and
+ * there's no way that can conflict on a multi-site installation, since
+ * the Update manager won't let you install a new module if it's already
+ * found on your system, and if there was a copy in sites/all, we'd see it.
+ */
+ public function getInstallDirectory() {
+ if ($relative_path = drupal_get_path('module', $this->name)) {
+ $relative_path = dirname($relative_path);
+ }
+ else {
+ $relative_path = 'sites/all/modules';
+ }
+ return DRUPAL_ROOT . '/' . $relative_path;
+ }
+
+ public function isInstalled() {
+ return (bool) drupal_get_path('module', $this->name);
+ }
+
+ public static function canUpdateDirectory($directory) {
+ if (file_scan_directory($directory, '/.*\.module$/')) {
+ return TRUE;
+ }
+ return FALSE;
+ }
+
+ public static function canUpdate($project_name) {
+ return (bool) drupal_get_path('module', $project_name);
+ }
+
+ /**
+ * Return available database schema updates one a new version is installed.
+ */
+ public function getSchemaUpdates() {
+ require_once DRUPAL_ROOT . '/includes/install.inc';
+ require_once DRUPAL_ROOT . '/includes/update.inc';
+
+ if (_update_get_project_type($project) != 'module') {
+ return array();
+ }
+ module_load_include('install', $project);
+
+ if (!$updates = drupal_get_schema_versions($project)) {
+ return array();
+ }
+ $updates_to_run = array();
+ $modules_with_updates = update_get_update_list();
+ if ($updates = $modules_with_updates[$project]) {
+ if ($updates['start']) {
+ return $updates['pending'];
+ }
+ }
+ return array();
+ }
+
+ /**
+ * Returns a list of post install actions.
+ */
+ public function postInstallTasks() {
+ return array(
+ l(t('Install another module'), 'admin/modules/install'),
+ l(t('Enable newly added modules'), 'admin/modules'),
+ l(t('Administration pages'), 'admin'),
+ );
+ }
+
+ public function postUpdateTasks() {
+ // We don't want to check for DB updates here, we do that once for all
+ // updated modules on the landing page.
+ }
+
+}
+
+/**
+ * Class for updating themes using FileTransfer classes via authorize.php.
+ */
+class ThemeUpdater extends Updater implements DrupalUpdaterInterface {
+
+ /**
+ * Return the directory where a theme should be installed.
+ *
+ * If the theme is already installed, drupal_get_path() will return
+ * a valid path and we should install it there (although we need to use an
+ * absolute path, so we prepend DRUPAL_ROOT). If we're installing a new
+ * theme, we always want it to go into sites/all/themes, since that's
+ * where all the documentation recommends users install their themes, and
+ * there's no way that can conflict on a multi-site installation, since
+ * the Update manager won't let you install a new theme if it's already
+ * found on your system, and if there was a copy in sites/all, we'd see it.
+ */
+ public function getInstallDirectory() {
+ if ($relative_path = drupal_get_path('theme', $this->name)) {
+ $relative_path = dirname($relative_path);
+ }
+ else {
+ $relative_path = 'sites/all/themes';
+ }
+ return DRUPAL_ROOT . '/' . $relative_path;
+ }
+
+ public function isInstalled() {
+ return (bool) drupal_get_path('theme', $this->name);
+ }
+
+ static function canUpdateDirectory($directory) {
+ // This is a lousy test, but don't know how else to confirm it is a theme.
+ if (file_scan_directory($directory, '/.*\.module$/')) {
+ return FALSE;
+ }
+ return TRUE;
+ }
+
+ public static function canUpdate($project_name) {
+ return (bool) drupal_get_path('theme', $project_name);
+ }
+
+ public function postInstall() {
+ // Update the system table.
+ clearstatcache();
+ system_rebuild_theme_data();
+
+ }
+
+ public function postInstallTasks() {
+ return array(
+ l(t('Enable newly added themes'), 'admin/appearance'),
+ l(t('Administration pages'), 'admin'),
+ );
+ }
+}