<?php

/**

 * Plugins administration panel.

 *

 * @package WordPress

 * @subpackage Administration

 */

/** WordPress Administration Bootstrap */

require_once('admin.php');

if ( ! current_user_can('activate_plugins') )

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

if ( isset($_POST['clear-recent-list']) )

	$action = 'clear-recent-list';

elseif ( !empty($_REQUEST['action']) )

	$action = $_REQUEST['action'];

elseif ( !empty($_REQUEST['action2']) )

	$action = $_REQUEST['action2'];

else

	$action = false;

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

$default_status = get_user_option('plugins_last_view');

if ( empty($default_status) )

	$default_status = 'all';

$status = isset($_REQUEST['plugin_status']) ? $_REQUEST['plugin_status'] : $default_status;

if ( !in_array($status, array('all', 'active', 'inactive', 'recent', 'upgrade', 'search')) )

	$status = 'all';

if ( $status != $default_status && 'search' != $status )

	update_usermeta($current_user->ID, 'plugins_last_view', $status);

$page = isset($_REQUEST['paged']) ? $_REQUEST['paged'] : 1;

//Clean up request URI from temporary args for screen options/paging uri's to work as expected.

$_SERVER['REQUEST_URI'] = remove_query_arg(array('error', 'deleted', 'activate', 'activate-multi', 'deactivate', 'deactivate-multi', '_error_nonce'), $_SERVER['REQUEST_URI']);

if ( !empty($action) ) {

	switch ( $action ) {

		case 'activate':

			if ( ! current_user_can('activate_plugins') )

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

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

			$result = activate_plugin($plugin, 'plugins.php?error=true&plugin=' . $plugin);

			if ( is_wp_error( $result ) )

				wp_die($result);

			$recent = (array)get_option('recently_activated');

			if ( isset($recent[ $plugin ]) ) {

				unset($recent[ $plugin ]);

				update_option('recently_activated', $recent);

			}

			wp_redirect("plugins.php?activate=true&plugin_status=$status&paged=$page"); // overrides the ?error=true one above

			exit;

			break;

		case 'activate-selected':

			if ( ! current_user_can('activate_plugins') )

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

			check_admin_referer('bulk-manage-plugins');

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

			$plugins = array_filter($plugins, create_function('$plugin', 'return !is_plugin_active($plugin);') ); //Only activate plugins which are not already active.

			if ( empty($plugins) ) {

				wp_redirect("plugins.php?plugin_status=$status&paged=$page");

				exit;

			}

			activate_plugins($plugins, 'plugins.php?error=true');

			$recent = (array)get_option('recently_activated');

			foreach ( $plugins as $plugin => $time)

				if ( isset($recent[ $plugin ]) )

					unset($recent[ $plugin ]);

			update_option('recently_activated', $recent);

			wp_redirect("plugins.php?activate-multi=true&plugin_status=$status&paged=$page");

			exit;

			break;

		case 'error_scrape':

			if ( ! current_user_can('activate_plugins') )

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

			check_admin_referer('plugin-activation-error_' . $plugin);

			$valid = validate_plugin($plugin);

			if ( is_wp_error($valid) )

				wp_die($valid);

			error_reporting( E_ALL ^ E_NOTICE );

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

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

			do_action('activate_' . $plugin);

			exit;

			break;

		case 'deactivate':

			if ( ! current_user_can('activate_plugins') )

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

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

			deactivate_plugins($plugin);

			update_option('recently_activated', array($plugin => time()) + (array)get_option('recently_activated'));

			wp_redirect("plugins.php?deactivate=true&plugin_status=$status&paged=$page");

			exit;

			break;

		case 'deactivate-selected':

			if ( ! current_user_can('activate_plugins') )

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

			check_admin_referer('bulk-manage-plugins');

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

			$plugins = array_filter($plugins, 'is_plugin_active'); //Do not deactivate plugins which are already deactivated.

			if ( empty($plugins) ) {

				wp_redirect("plugins.php?plugin_status=$status&paged=$page");

				exit;

			}

			deactivate_plugins($plugins);

			$deactivated = array();

			foreach ( $plugins as $plugin )

				$deactivated[ $plugin ] = time();

			update_option('recently_activated', $deactivated + (array)get_option('recently_activated'));

			wp_redirect("plugins.php?deactivate-multi=true&plugin_status=$status&paged=$page");

			exit;

			break;

		case 'delete-selected':

			if ( ! current_user_can('delete_plugins') )

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

			check_admin_referer('bulk-manage-plugins');

			$plugins = (array) $_REQUEST['checked']; //$_POST = from the plugin form; $_GET = from the FTP details screen.

			$plugins = array_filter($plugins, create_function('$plugin', 'return !is_plugin_active($plugin);') ); //Do not allow to delete Activated plugins.

			if ( empty($plugins) ) {

				wp_redirect("plugins.php?plugin_status=$status&paged=$page");

				exit;

			}

			include(ABSPATH . 'wp-admin/update.php');

			$parent_file = 'plugins.php';

			if ( ! isset($_REQUEST['verify-delete']) ) {

				wp_enqueue_script('jquery');

				require_once('admin-header.php');

				?>

			<div class="wrap">

				<h2><?php _e('Delete Plugin(s)'); ?></h2>

				<?php

					$files_to_delete = $plugin_info = array();

					foreach ( (array) $plugins as $plugin ) {

						if ( '.' == dirname($plugin) ) {

							$files_to_delete[] = WP_PLUGIN_DIR . '/' . $plugin;

							if( $data = get_plugin_data(WP_PLUGIN_DIR . '/' . $plugin) )

								$plugin_info[ $plugin ] = $data;

						} else {

							//Locate all the files in that folder:

							$files = list_files( WP_PLUGIN_DIR . '/' . dirname($plugin) );

							if( $files ) {

								$files_to_delete = array_merge($files_to_delete, $files);

							}

							//Get plugins list from that folder

							if ( $folder_plugins = get_plugins( '/' . dirname($plugin)) )

								$plugin_info = array_merge($plugin_info, $folder_plugins);

						}

					}

				?>

				<p><?php _e('Deleting the selected plugins will remove the following plugin(s) and their files:'); ?></p>

					<ul class="ul-disc">

						<?php

						foreach ( $plugin_info as $plugin )

							echo '<li>', sprintf(__('<strong>%s</strong> by <em>%s</em>'), $plugin['Name'], $plugin['Author']), '</li>';

						?>

					</ul>

				<p><?php _e('Are you sure you wish to delete these files?') ?></p>

				<form method="post" action="<?php echo esc_url($_SERVER['REQUEST_URI']); ?>" style="display:inline;">

					<input type="hidden" name="verify-delete" value="1" />

					<input type="hidden" name="action" value="delete-selected" />

					<?php

						foreach ( (array)$plugins as $plugin )

							echo '<input type="hidden" name="checked[]" value="' . esc_attr($plugin) . '" />';

					?>

					<?php wp_nonce_field('bulk-manage-plugins') ?>

					<input type="submit" name="submit" value="<?php esc_attr_e('Yes, Delete these files') ?>" class="button" />

				</form>

				<form method="post" action="<?php echo esc_url(wp_get_referer()); ?>" style="display:inline;">

					<input type="submit" name="submit" value="<?php esc_attr_e('No, Return me to the plugin list') ?>" class="button" />

				</form>

				<p><a href="#" onclick="jQuery('#files-list').toggle(); return false;"><?php _e('Click to view entire list of files which will be deleted'); ?></a></p>

				<div id="files-list" style="display:none;">

					<ul class="code">

					<?php

						foreach ( (array)$files_to_delete as $file )

							echo '<li>' . str_replace(WP_PLUGIN_DIR, '', $file) . '</li>';

					?>

					</ul>

				</div>

			</div>

				<?php

				require_once('admin-footer.php');

				exit;

			} //Endif verify-delete

			$delete_result = delete_plugins($plugins);

			set_transient('plugins_delete_result_'.$user_ID, $delete_result); //Store the result in a cache rather than a URL param due to object type & length

			wp_redirect("plugins.php?deleted=true&plugin_status=$status&paged=$page");

			exit;

			break;

		case 'clear-recent-list':

			update_option('recently_activated', array());

			break;

	}

}

wp_enqueue_script('plugin-install');

add_thickbox();

$help = '<p>' . __('Plugins extend and expand the functionality of WordPress. Once a plugin is installed, you may activate it or deactivate it here.') . '</p>';

$help .= '<p>' . sprintf(__('If something goes wrong with a plugin and you can&#8217;t use WordPress, delete or rename that file in the <code>%s</code> directory and it will be automatically deactivated.'), WP_PLUGIN_DIR) . '</p>';

$help .= '<p>' . sprintf(__('You can find additional plugins for your site by using the new <a href="%1$s">Plugin Browser/Installer</a> functionality or by browsing the <a href="http://wordpress.org/extend/plugins/">WordPress Plugin Directory</a> directly and installing manually.  To <em>manually</em> install a plugin you generally just need to upload the plugin file into your <code>%2$s</code> directory.  Once a plugin has been installed, you may activate it here.'), 'plugin-install.php', WP_PLUGIN_DIR) . '</p>';

add_contextual_help('plugins', $help);

$title = __('Manage Plugins');

require_once('admin-header.php');

$invalid = validate_active_plugins();

if ( !empty($invalid) )

	foreach ( $invalid as $plugin_file => $error )

		echo '<div id="message" class="error"><p>' . sprintf(__('The plugin <code>%s</code> has been <strong>deactivated</strong> due to an error: %s'), esc_html($plugin_file), $error->get_error_message()) . '</p></div>';

?>

<?php if ( isset($_GET['error']) ) : ?>

	<div id="message" class="updated fade"><p><?php _e('Plugin could not be activated because it triggered a <strong>fatal error</strong>.') ?></p>

	<?php

		if ( wp_verify_nonce($_GET['_error_nonce'], 'plugin-activation-error_' . $plugin) ) { ?>

	<iframe style="border:0" width="100%" height="70px" src="<?php echo admin_url('plugins.php?action=error_scrape&amp;plugin=' . esc_attr($plugin) . '&amp;_wpnonce=' . esc_attr($_GET['_error_nonce'])); ?>"></iframe>

	<?php

		}

	?>

	</div>

<?php elseif ( isset($_GET['deleted']) ) :

		$delete_result = get_transient('plugins_delete_result_'.$user_ID);

		delete_transient('plugins_delete_result'); //Delete it once we're done.

		if ( is_wp_error($delete_result) ) : ?>

		<div id="message" class="updated fade"><p><?php printf( __('Plugin could not be deleted due to an error: %s'), $delete_result->get_error_message() ); ?></p></div>

		<?php else : ?>

		<div id="message" class="updated fade"><p><?php _e('The selected plugins have been <strong>deleted</strong>.'); ?></p></div>

		<?php endif; ?>

<?php elseif ( isset($_GET['activate']) ) : ?>

	<div id="message" class="updated fade"><p><?php _e('Plugin <strong>activated</strong>.') ?></p></div>

<?php elseif (isset($_GET['activate-multi'])) : ?>

	<div id="message" class="updated fade"><p><?php _e('Selected plugins <strong>activated</strong>.'); ?></p></div>

<?php elseif ( isset($_GET['deactivate']) ) : ?>

	<div id="message" class="updated fade"><p><?php _e('Plugin <strong>deactivated</strong>.') ?></p></div>

<?php elseif (isset($_GET['deactivate-multi'])) : ?>

	<div id="message" class="updated fade"><p><?php _e('Selected plugins <strong>deactivated</strong>.'); ?></p></div>

<?php endif; ?>

<div class="wrap">

<?php screen_icon(); ?>

<h2><?php echo esc_html( $title ); ?></h2>

<?php

$all_plugins = get_plugins();

$search_plugins = array();

$active_plugins = array();

$inactive_plugins = array();

$recent_plugins = array();

$recently_activated = get_option('recently_activated', array());

$upgrade_plugins = array();

set_transient( 'plugin_slugs', array_keys($all_plugins), 86400 );

// Clean out any plugins which were deactivated over a week ago.

foreach ( $recently_activated as $key => $time )

	if ( $time + (7*24*60*60) < time() ) //1 week

		unset($recently_activated[ $key ]);

if ( $recently_activated != get_option('recently_activated') ) //If array changed, update it.

	update_option('recently_activated', $recently_activated);

$current = get_transient( 'update_plugins' );

foreach ( (array)$all_plugins as $plugin_file => $plugin_data) {

	//Translate, Apply Markup, Sanitize HTML

	$plugin_data = _get_plugin_data_markup_translate($plugin_file, $plugin_data, false, true);

	$all_plugins[ $plugin_file ] = $plugin_data;

	//Filter into individual sections

	if ( is_plugin_active($plugin_file) ) {

		$active_plugins[ $plugin_file ] = $plugin_data;

	} else {

		if ( isset( $recently_activated[ $plugin_file ] ) ) // Was the plugin recently activated?

			$recent_plugins[ $plugin_file ] = $plugin_data;

		$inactive_plugins[ $plugin_file ] = $plugin_data;

	}

    if ( isset( $current->response[ $plugin_file ] ) )

        $upgrade_plugins[ $plugin_file ] = $plugin_data;

}

$total_all_plugins = count($all_plugins);

$total_inactive_plugins = count($inactive_plugins);

$total_active_plugins = count($active_plugins);

$total_recent_plugins = count($recent_plugins);

$total_upgrade_plugins = count($upgrade_plugins);

//Searching.

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

	function _search_plugins_filter_callback($plugin) {

		static $term;

		if ( is_null($term) )

			$term = stripslashes($_GET['s']);

		if ( 	stripos($plugin['Name'], $term) !== false ||

				stripos($plugin['Description'], $term) !== false ||

				stripos($plugin['Author'], $term) !== false ||

				stripos($plugin['PluginURI'], $term) !== false ||

				stripos($plugin['AuthorURI'], $term) !== false ||

				stripos($plugin['Version'], $term) !== false )

			return true;

		else

			return false;

	}

	$status = 'search';

	$search_plugins = array_filter($all_plugins, '_search_plugins_filter_callback');

	$total_search_plugins = count($search_plugins);

}

$plugin_array_name = "${status}_plugins";

if ( empty($$plugin_array_name) && $status != 'all' ) {

	$status = 'all';

	$plugin_array_name = "${status}_plugins";

}

$plugins = &$$plugin_array_name;

//Paging.

$total_this_page = "total_{$status}_plugins";

$total_this_page = $$total_this_page;

$plugins_per_page = get_user_option('plugins_per_page');

if ( empty($plugins_per_page) )

	$plugins_per_page = 999;

$plugins_per_page = apply_filters('plugins_per_page', $plugins_per_page);

$start = ($page - 1) * $plugins_per_page;

$page_links = paginate_links( array(

	'base' => add_query_arg( 'paged', '%#%' ),

	'format' => '',

	'prev_text' => __('«'),

	'next_text' => __('»'),

	'total' => ceil($total_this_page / $plugins_per_page),

	'current' => $page

));

$page_links_text = sprintf( '<span class="displaying-num">' . __( 'Displaying %s&#8211;%s of %s' ) . '</span>%s',

	number_format_i18n( $start + 1 ),

	number_format_i18n( min( $page * $plugins_per_page, $total_this_page ) ),

	'<span class="total-type-count">' . number_format_i18n( $total_this_page ) . '</span>',

	$page_links

);

/**

 * @ignore

 *

 * @param array $plugins

 * @param string $context

 */

function print_plugins_table($plugins, $context = '') {

	global $page;

?>

<table class="widefat" cellspacing="0" id="<?php echo $context ?>-plugins-table">

	<thead>

	<tr>

		<th scope="col" class="manage-column check-column"><input type="checkbox" /></th>

		<th scope="col" class="manage-column"><?php _e('Plugin'); ?></th>

		<th scope="col" class="manage-column"><?php _e('Description'); ?></th>

	</tr>

	</thead>

	<tfoot>

	<tr>

		<th scope="col" class="manage-column check-column"><input type="checkbox" /></th>

		<th scope="col" class="manage-column"><?php _e('Plugin'); ?></th>