/wp-admin/update.php

<?php

/**

 * Update/Install Plugin/Theme administration panel.

 *

 * @package WordPress

 * @subpackage Administration

 */



/** WordPress Administration Bootstrap */

require_once('./admin.php');



include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';



if ( isset($_GET['action']) ) {

	$plugin = isset($_REQUEST['plugin']) ? trim($_REQUEST['plugin']) : '';

	$theme = isset($_REQUEST['theme']) ? urldecode($_REQUEST['theme']) : '';

	$action = isset($_REQUEST['action']) ? $_REQUEST['action'] : '';



	if ( 'update-selected' == $action ) {

		if ( ! current_user_can( 'update_plugins' ) )

			wp_die( __( 'You do not have sufficient permissions to update plugins for this site.' ) );



		check_admin_referer( 'bulk-update-plugins' );



		if ( isset( $_GET['plugins'] ) )

			$plugins = explode( ',', stripslashes($_GET['plugins']) );

		elseif ( isset( $_POST['checked'] ) )

			$plugins = (array) $_POST['checked'];

		else

			$plugins = array();



		$plugins = array_map('urldecode', $plugins);



		$url = 'update.php?action=update-selected&amp;plugins=' . urlencode(implode(',', $plugins));

		$nonce = 'bulk-update-plugins';



		require_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );

		wp_enqueue_script('jquery');

		iframe_header();



		$upgrader = new Plugin_Upgrader( new Bulk_Plugin_Upgrader_Skin( compact( 'nonce', 'url' ) ) );

		$upgrader->bulk_upgrade( $plugins );



		iframe_footer();



	} elseif ( 'upgrade-plugin' == $action ) {

		if ( ! current_user_can('update_plugins') )

			wp_die(__('You do not have sufficient permissions to update plugins for this site.'));



		check_admin_referer('upgrade-plugin_' . $plugin);



		$title = __('Upgrade Plugin');

		$parent_file = 'plugins.php';

		$submenu_file = 'plugins.php';

		require_once('./admin-header.php');



		$nonce = 'upgrade-plugin_' . $plugin;

		$url = 'update.php?action=upgrade-plugin&plugin=' . $plugin;



		$upgrader = new Plugin_Upgrader( new Plugin_Upgrader_Skin( compact('title', 'nonce', 'url', 'plugin') ) );

		$upgrader->upgrade($plugin);



		include('./admin-footer.php');



	} elseif ('activate-plugin' == $action ) {

		if ( ! current_user_can('update_plugins') )

			wp_die(__('You do not have sufficient permissions to update plugins for this site.'));



		check_admin_referer('activate-plugin_' . $plugin);

		if ( ! isset($_GET['failure']) && ! isset($_GET['success']) ) {

			wp_redirect( 'update.php?action=activate-plugin&failure=true&plugin=' . $plugin . '&_wpnonce=' . $_GET['_wpnonce'] );

			activate_plugin( $plugin, '', ! empty( $_GET['networkwide'] ) );

			wp_redirect( 'update.php?action=activate-plugin&success=true&plugin=' . $plugin . '&_wpnonce=' . $_GET['_wpnonce'] );

			die();

		}

		iframe_header( __('Plugin Reactivation'), true );

		if ( isset($_GET['success']) )

			echo '<p>' . __('Plugin reactivated successfully.') . '</p>';



		if ( isset($_GET['failure']) ){

			echo '<p>' . __('Plugin failed to reactivate due to a fatal error.') . '</p>';



			if ( defined('E_RECOVERABLE_ERROR') )

				error_reporting(E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR);

			else

				error_reporting(E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING);



			@ini_set('display_errors', true); //Ensure that Fatal errors are displayed.

			include(WP_PLUGIN_DIR . '/' . $plugin);

		}

		iframe_footer();

	} elseif ( 'install-plugin' == $action ) {



		if ( ! current_user_can('install_plugins') )

			wp_die(__('You do not have sufficient permissions to install plugins for this site.'));



		include_once ABSPATH . 'wp-admin/includes/plugin-install.php'; //for plugins_api..



		check_admin_referer('install-plugin_' . $plugin);

		$api = plugins_api('plugin_information', array('slug' => $plugin, 'fields' => array('sections' => false) ) ); //Save on a bit of bandwidth.



		if ( is_wp_error($api) )

	 		wp_die($api);



		$title = __('Plugin Install');

		$parent_file = 'plugins.php';

		$submenu_file = 'plugin-install.php';

		require_once('./admin-header.php');



		$title = sprintf( __('Installing Plugin: %s'), $api->name . ' ' . $api->version );

		$nonce = 'install-plugin_' . $plugin;

		$url = 'update.php?action=install-plugin&plugin=' . $plugin;

		if ( isset($_GET['from']) )

			$url .= '&from=' . urlencode(stripslashes($_GET['from']));



		$type = 'web'; //Install plugin type, From Web or an Upload.



		$upgrader = new Plugin_Upgrader( new Plugin_Installer_Skin( compact('title', 'url', 'nonce', 'plugin', 'api') ) );

		$upgrader->install($api->download_link);



		include('./admin-footer.php');



	} elseif ( 'upload-plugin' == $action ) {



		if ( ! current_user_can('install_plugins') )

			wp_die(__('You do not have sufficient permissions to install plugins for this site.'));



		check_admin_referer('plugin-upload');



		$file_upload = new File_Upload_Upgrader('pluginzip', 'package');



		$title = __('Upload Plugin');

		$parent_file = 'plugins.php';

		$submenu_file = 'plugin-install.php';

		require_once('./admin-header.php');



		$title = sprintf( __('Installing Plugin from uploaded file: %s'), basename( $file_upload->filename ) );

		$nonce = 'plugin-upload';

		$url = add_query_arg(array('package' => $file_upload->filename ), 'update.php?action=upload-plugin');

		$type = 'upload'; //Install plugin type, From Web or an Upload.



		$upgrader = new Plugin_Upgrader( new Plugin_Installer_Skin( compact('type', 'title', 'nonce', 'url') ) );

		$upgrader->install( $file_upload->package );



		include('./admin-footer.php');



	} elseif ( 'upgrade-theme' == $action ) {



		if ( ! current_user_can('update_themes') )

			wp_die(__('You do not have sufficient permissions to update themes for this site.'));



		check_admin_referer('upgrade-theme_' . $theme);



		add_thickbox();

		wp_enqueue_script('theme-preview');

		$title = __('Upgrade Theme');

		$parent_file = 'themes.php';

		$submenu_file = 'themes.php';

		require_once('./admin-header.php');



		$nonce = 'upgrade-theme_' . $theme;

		$url = 'update.php?action=upgrade-theme&theme=' . $theme;



		$upgrader = new Theme_Upgrader( new Theme_Upgrader_Skin( compact('title', 'nonce', 'url', 'theme') ) );

		$upgrader->upgrade($theme);



		include('./admin-footer.php');

	} elseif ( 'update-selected-themes' == $action ) {

		if ( ! current_user_can( 'update_themes' ) )

			wp_die( __( 'You do not have sufficient permissions to update themes for this site.' ) );



		check_admin_referer( 'bulk-update-themes' );



		if ( isset( $_GET['themes'] ) )

			$themes = explode( ',', stripslashes($_GET['themes']) );

		elseif ( isset( $_POST['checked'] ) )

			$themes = (array) $_POST['checked'];

		else

			$themes = array();



		$themes = array_map('urldecode', $themes);



		$url = 'update.php?action=update-selected-themes&amp;themes=' . urlencode(implode(',', $themes));

		$nonce = 'bulk-update-themes';



		require_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );

		wp_enqueue_script('jquery');

		iframe_header();



		$upgrader = new Theme_Upgrader( new Bulk_Theme_Upgrader_Skin( compact( 'nonce', 'url' ) ) );

		$upgrader->bulk_upgrade( $themes );



		iframe_footer();

	} elseif ( 'install-theme' == $action ) {



		if ( ! current_user_can('install_themes') )

			wp_die(__('You do not have sufficient permissions to install themes for this site.'));



		include_once ABSPATH . 'wp-admin/includes/theme-install.php'; //for themes_api..



		check_admin_referer('install-theme_' . $theme);

		$api = themes_api('theme_information', array('slug' => $theme, 'fields' => array('sections' => false) ) ); //Save on a bit of bandwidth.



		if ( is_wp_error($api) )

	 		wp_die($api);



		add_thickbox();

		wp_enqueue_script('theme-preview');

		$title = __('Install Themes');

		$parent_file = 'themes.php';

		$submenu_file = 'themes.php';

		require_once('./admin-header.php');



		$title = sprintf( __('Installing Theme: %s'), $api->name . ' ' . $api->version );

		$nonce = 'install-theme_' . $theme;

		$url = 'update.php?action=install-theme&theme=' . $theme;

		$type = 'web'; //Install theme type, From Web or an Upload.



		$upgrader = new Theme_Upgrader( new Theme_Installer_Skin( compact('title', 'url', 'nonce', 'plugin', 'api') ) );

		$upgrader->install($api->download_link);



		include('./admin-footer.php');



	} elseif ( 'upload-theme' == $action ) {



		if ( ! current_user_can('install_themes') )

			wp_die(__('You do not have sufficient permissions to install themes for this site.'));



		check_admin_referer('theme-upload');



		$file_upload = new File_Upload_Upgrader('themezip', 'package');



		$title = __('Upload Theme');

		$parent_file = 'themes.php';

		$submenu_file = 'theme-install.php';

		add_thickbox();

		wp_enqueue_script('theme-preview');

		require_once('./admin-header.php');



		$title = sprintf( __('Installing Theme from uploaded file: %s'), basename( $file_upload->filename ) );

		$nonce = 'theme-upload';

		$url = add_query_arg(array('package' => $file_upload->filename), 'update.php?action=upload-theme');

		$type = 'upload'; //Install plugin type, From Web or an Upload.



		$upgrader = new Theme_Upgrader( new Theme_Installer_Skin( compact('type', 'title', 'nonce', 'url') ) );

		$upgrader->install( $file_upload->package );



		include('./admin-footer.php');



	} else {

		do_action('update-custom_' . $action);

	}

}