X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/41578db67d72562346e4dbb2a14889b23d522813..607b7e02d77e7326161e8ec15639052d2040f745:/wp-admin/plugins.php

diff --git a/wp-admin/plugins.php b/wp-admin/plugins.php
index 9c3aa457..1d462381 100644
--- a/wp-admin/plugins.php
+++ b/wp-admin/plugins.php
@@ -10,7 +10,7 @@
 require_once( dirname( __FILE__ ) . '/admin.php' );
 
 if ( ! current_user_can('activate_plugins') )
-	wp_die( __( 'You do not have sufficient permissions to manage plugins for this site.' ) );
+	wp_die( __( 'Sorry, you are not allowed to manage plugins for this site.' ) );
 
 $wp_list_table = _get_list_table('WP_Plugins_List_Table');
 $pagenum = $wp_list_table->get_pagenum();
@@ -18,17 +18,19 @@ $pagenum = $wp_list_table->get_pagenum();
 $action = $wp_list_table->current_action();
 
 $plugin = isset($_REQUEST['plugin']) ? $_REQUEST['plugin'] : '';
-$s = isset($_REQUEST['s']) ? urlencode($_REQUEST['s']) : '';
+$s = isset($_REQUEST['s']) ? urlencode( wp_unslash( $_REQUEST['s'] ) ) : '';
 
 // 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']);
 
+wp_enqueue_script( 'updates' );
+
 if ( $action ) {
 
 	switch ( $action ) {
 		case 'activate':
 			if ( ! current_user_can('activate_plugins') )
-				wp_die(__('You do not have sufficient permissions to activate plugins for this site.'));
+				wp_die(__('Sorry, you are not allowed to activate plugins for this site.'));
 
 			if ( is_multisite() && ! is_network_admin() && is_network_only_plugin( $plugin ) ) {
 				wp_redirect( self_admin_url("plugins.php?plugin_status=$status&paged=$page&s=$s") );
@@ -52,6 +54,10 @@ if ( $action ) {
 				$recent = (array) get_option( 'recently_activated' );
 				unset( $recent[ $plugin ] );
 				update_option( 'recently_activated', $recent );
+			} else {
+				$recent = (array) get_site_option( 'recently_activated' );
+				unset( $recent[ $plugin ] );
+				update_site_option( 'recently_activated', $recent );
 			}
 
 			if ( isset($_GET['from']) && 'import' == $_GET['from'] ) {
@@ -60,10 +66,10 @@ if ( $action ) {
 				wp_redirect( self_admin_url("plugins.php?activate=true&plugin_status=$status&paged=$page&s=$s") ); // 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 site.'));
+				wp_die(__('Sorry, you are not allowed to activate plugins for this site.'));
 
 			check_admin_referer('bulk-plugins');
 
@@ -94,14 +100,23 @@ if ( $action ) {
 
 			if ( ! is_network_admin() ) {
 				$recent = (array) get_option('recently_activated' );
-				foreach ( $plugins as $plugin )
-					unset( $recent[ $plugin ] );
+			} else {
+				$recent = (array) get_site_option('recently_activated' );
+			}
+
+			foreach ( $plugins as $plugin ) {
+				unset( $recent[ $plugin ] );
+			}
+
+			if ( ! is_network_admin() ) {
 				update_option( 'recently_activated', $recent );
+			} else {
+				update_site_option( 'recently_activated', $recent );
 			}
 
 			wp_redirect( self_admin_url("plugins.php?activate-multi=true&plugin_status=$status&paged=$page&s=$s") );
 			exit;
-			break;
+
 		case 'update-selected' :
 
 			check_admin_referer( 'bulk-plugins' );
@@ -120,7 +135,7 @@ if ( $action ) {
 			require_once(ABSPATH . 'wp-admin/admin-header.php');
 
 			echo '<div class="wrap">';
-			echo '<h2>' . esc_html( $title ) . '</h2>';
+			echo '<h1>' . esc_html( $title ) . '</h1>';
 
 			$url = self_admin_url('update.php?action=update-selected&amp;plugins=' . urlencode( join(',', $plugins) ));
 			$url = wp_nonce_url($url, 'bulk-update-plugins');
@@ -129,10 +144,10 @@ if ( $action ) {
 			echo '</div>';
 			require_once(ABSPATH . 'wp-admin/admin-footer.php');
 			exit;
-			break;
+
 		case 'error_scrape':
 			if ( ! current_user_can('activate_plugins') )
-				wp_die(__('You do not have sufficient permissions to activate plugins for this site.'));
+				wp_die(__('Sorry, you are not allowed to activate plugins for this site.'));
 
 			check_admin_referer('plugin-activation-error_' . $plugin);
 
@@ -146,18 +161,14 @@ if ( $action ) {
 
 			@ini_set('display_errors', true); //Ensure that Fatal errors are displayed.
 			// Go back to "sandbox" scope so we get the same errors as before
-			function plugin_sandbox_scrape( $plugin ) {
-				wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin );
-				include( WP_PLUGIN_DIR . '/' . $plugin );
-			}
 			plugin_sandbox_scrape( $plugin );
-			/** This action is documented in wp-admin/includes/plugins.php */
+			/** This action is documented in wp-admin/includes/plugin.php */
 			do_action( "activate_{$plugin}" );
 			exit;
-			break;
+
 		case 'deactivate':
 			if ( ! current_user_can('activate_plugins') )
-				wp_die(__('You do not have sufficient permissions to deactivate plugins for this site.'));
+				wp_die(__('Sorry, you are not allowed to deactivate plugins for this site.'));
 
 			check_admin_referer('deactivate-plugin_' . $plugin);
 
@@ -167,17 +178,22 @@ if ( $action ) {
 			}
 
 			deactivate_plugins( $plugin, false, is_network_admin() );
-			if ( ! is_network_admin() )
+
+			if ( ! is_network_admin() ) {
 				update_option( 'recently_activated', array( $plugin => time() ) + (array) get_option( 'recently_activated' ) );
+			} else {
+				update_site_option( 'recently_activated', array( $plugin => time() ) + (array) get_site_option( 'recently_activated' ) );
+			}
+
 			if ( headers_sent() )
 				echo "<meta http-equiv='refresh' content='" . esc_attr( "0;url=plugins.php?deactivate=true&plugin_status=$status&paged=$page&s=$s" ) . "' />";
 			else
 				wp_redirect( self_admin_url("plugins.php?deactivate=true&plugin_status=$status&paged=$page&s=$s") );
 			exit;
-			break;
+
 		case 'deactivate-selected':
 			if ( ! current_user_can('activate_plugins') )
-				wp_die(__('You do not have sufficient permissions to deactivate plugins for this site.'));
+				wp_die(__('Sorry, you are not allowed to deactivate plugins for this site.'));
 
 			check_admin_referer('bulk-plugins');
 
@@ -196,19 +212,24 @@ if ( $action ) {
 
 			deactivate_plugins( $plugins, false, is_network_admin() );
 
+			$deactivated = array();
+			foreach ( $plugins as $plugin ) {
+				$deactivated[ $plugin ] = time();
+			}
+
 			if ( ! is_network_admin() ) {
-				$deactivated = array();
-				foreach ( $plugins as $plugin )
-					$deactivated[ $plugin ] = time();
 				update_option( 'recently_activated', $deactivated + (array) get_option( 'recently_activated' ) );
+			} else {
+				update_site_option( 'recently_activated', $deactivated + (array) get_site_option( 'recently_activated' ) );
 			}
 
 			wp_redirect( self_admin_url("plugins.php?deactivate-multi=true&plugin_status=$status&paged=$page&s=$s") );
 			exit;
-			break;
+
 		case 'delete-selected':
-			if ( ! current_user_can('delete_plugins') )
-				wp_die(__('You do not have sufficient permissions to delete plugins for this site.'));
+			if ( ! current_user_can('delete_plugins') ) {
+				wp_die(__('Sorry, you are not allowed to delete plugins for this site.'));
+			}
 
 			check_admin_referer('bulk-plugins');
 
@@ -235,52 +256,58 @@ if ( $action ) {
 				?>
 			<div class="wrap">
 				<?php
-					$files_to_delete = $plugin_info = array();
+					$plugin_info = array();
 					$have_non_network_plugins = false;
 					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_slug = dirname( $plugin );
+
+						if ( '.' == $plugin_slug ) {
+							if ( $data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin ) ) {
 								$plugin_info[ $plugin ] = $data;
 								$plugin_info[ $plugin ]['is_uninstallable'] = is_uninstallable_plugin( $plugin );
-								if ( ! $plugin_info[ $plugin ]['Network'] )
+								if ( ! $plugin_info[ $plugin ]['Network'] ) {
 									$have_non_network_plugins = true;
+								}
 							}
 						} 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)) ) {
-								foreach( $folder_plugins as $plugin_file => $data ) {
+							// Get plugins list from that folder.
+							if ( $folder_plugins = get_plugins( '/' . $plugin_slug ) ) {
+								foreach ( $folder_plugins as $plugin_file => $data ) {
 									$plugin_info[ $plugin_file ] = _get_plugin_data_markup_translate( $plugin_file, $data );
 									$plugin_info[ $plugin_file ]['is_uninstallable'] = is_uninstallable_plugin( $plugin );
-									if ( ! $plugin_info[ $plugin_file ]['Network'] )
+									if ( ! $plugin_info[ $plugin_file ]['Network'] ) {
 										$have_non_network_plugins = true;
+									}
 								}
 							}
 						}
 					}
 					$plugins_to_delete = count( $plugin_info );
-					echo '<h2>' . _n( 'Delete Plugin', 'Delete Plugins', $plugins_to_delete ) . '</h2>';
 				?>
-				<?php if ( $have_non_network_plugins && is_network_admin() ) : ?>
-				<div class="error"><p><strong><?php _e( 'Caution:' ); ?></strong> <?php echo _n( 'This plugin may be active on other sites in the network.', 'These plugins may be active on other sites in the network.', $plugins_to_delete ); ?></p></div>
+				<?php if ( 1 == $plugins_to_delete ) : ?>
+					<h1><?php _e( 'Delete Plugin' ); ?></h1>
+					<?php if ( $have_non_network_plugins && is_network_admin() ) : ?>
+						<div class="error"><p><strong><?php _e( 'Caution:' ); ?></strong> <?php _e( 'This plugin may be active on other sites in the network.' ); ?></p></div>
+					<?php endif; ?>
+					<p><?php _e( 'You are about to remove the following plugin:' ); ?></p>
+				<?php else: ?>
+					<h1><?php _e( 'Delete Plugins' ); ?></h1>
+					<?php if ( $have_non_network_plugins && is_network_admin() ) : ?>
+						<div class="error"><p><strong><?php _e( 'Caution:' ); ?></strong> <?php _e( 'These plugins may be active on other sites in the network.' ); ?></p></div>
+					<?php endif; ?>
+					<p><?php _e( 'You are about to remove the following plugins:' ); ?></p>
 				<?php endif; ?>
-				<p><?php echo _n( 'You are about to remove the following plugin:', 'You are about to remove the following plugins:', $plugins_to_delete ); ?></p>
 					<ul class="ul-disc">
 						<?php
 						$data_to_delete = false;
 						foreach ( $plugin_info as $plugin ) {
 							if ( $plugin['is_uninstallable'] ) {
 								/* translators: 1: plugin name, 2: plugin author */
-								echo '<li>', sprintf( __( '<strong>%1$s</strong> by <em>%2$s</em> (will also <strong>delete its data</strong>)' ), esc_html($plugin['Name']), esc_html($plugin['AuthorName']) ), '</li>';
+								echo '<li>', sprintf( __( '%1$s by %2$s (will also <strong>delete its data</strong>)' ), '<strong>' . $plugin['Name'] . '</strong>', '<em>' . $plugin['AuthorName'] . '</em>' ), '</li>';
 								$data_to_delete = true;
 							} else {
 								/* translators: 1: plugin name, 2: plugin author */
-								echo '<li>', sprintf( __('<strong>%1$s</strong> by <em>%2$s</em>' ), esc_html($plugin['Name']), esc_html($plugin['AuthorName']) ), '</li>';
+								echo '<li>', sprintf( _x('%1$s by %2$s', 'plugin' ), '<strong>' . $plugin['Name'] . '</strong>', '<em>' . $plugin['AuthorName'] ) . '</em>', '</li>';
 							}
 						}
 						?>
@@ -295,39 +322,39 @@ if ( $action ) {
 					<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) . '" />';
+						foreach ( (array) $plugins as $plugin ) {
+							echo '<input type="hidden" name="checked[]" value="' . esc_attr( $plugin ) . '" />';
+						}
 					?>
 					<?php wp_nonce_field('bulk-plugins') ?>
-					<?php submit_button( $data_to_delete ? __( 'Yes, Delete these files and data' ) : __( 'Yes, Delete these files' ), 'button', 'submit', false ); ?>
+					<?php submit_button( $data_to_delete ? __( 'Yes, delete these files and data' ) : __( 'Yes, delete these files' ), 'button', 'submit', false ); ?>
 				</form>
-				<form method="post" action="<?php echo esc_url(wp_get_referer()); ?>" style="display:inline;">
-					<?php submit_button( __( 'No, Return me to the plugin list' ), 'button', 'submit', false ); ?>
+				<?php
+				$referer = wp_get_referer();
+				?>
+				<form method="post" action="<?php echo $referer ? esc_url( $referer ) : ''; ?>" style="display:inline;">
+					<?php submit_button( __( 'No, return me to the plugin list' ), 'button', 'submit', false ); ?>
 				</form>
-
-				<p><a href="#" onclick="jQuery('#files-list').toggle(); return false;"><?php _e('Click to view entire list of files which will be deleted'); ?></a></p>
-				<div id="files-list" style="display:none;">
-					<ul class="code">
-					<?php
-						foreach ( (array)$files_to_delete as $file )
-							echo '<li>' . esc_html(str_replace(WP_PLUGIN_DIR, '', $file)) . '</li>';
-					?>
-					</ul>
-				</div>
 			</div>
 				<?php
 				require_once(ABSPATH . 'wp-admin/admin-footer.php');
 				exit;
-			} //Endif verify-delete
-			$delete_result = delete_plugins($plugins);
+			} else {
+				$plugins_to_delete = count( $plugins );
+			} // endif verify-delete
+
+			$delete_result = delete_plugins( $plugins );
 
 			set_transient('plugins_delete_result_' . $user_ID, $delete_result); //Store the result in a cache rather than a URL param due to object type & length
-			wp_redirect( self_admin_url("plugins.php?deleted=true&plugin_status=$status&paged=$page&s=$s") );
+			wp_redirect( self_admin_url("plugins.php?deleted=$plugins_to_delete&plugin_status=$status&paged=$page&s=$s") );
 			exit;
-			break;
+
 		case 'clear-recent-list':
-			if ( ! is_network_admin() )
+			if ( ! is_network_admin() ) {
 				update_option( 'recently_activated', array() );
+			} else {
+				update_site_option( 'recently_activated', array() );
+			}
 			break;
 	}
 }
@@ -337,38 +364,61 @@ $wp_list_table->prepare_items();
 wp_enqueue_script('plugin-install');
 add_thickbox();
 
-add_screen_option( 'per_page', array('label' => _x( 'Plugins', 'plugins per page (screen options)' ), 'default' => 999 ) );
+add_screen_option( 'per_page', array( 'default' => 999 ) );
 
 get_current_screen()->add_help_tab( array(
 'id'		=> 'overview',
 'title'		=> __('Overview'),
 'content'	=>
 	'<p>' . __('Plugins extend and expand the functionality of WordPress. Once a plugin is installed, you may activate it or deactivate it here.') . '</p>' .
-	'<p>' . sprintf(__('You can find additional plugins for your site by using the <a href="%1$s">Plugin Browser/Installer</a> functionality or by browsing the <a href="%2$s" target="_blank">WordPress Plugin Directory</a> directly and installing new plugins manually. To manually install a plugin you generally just need to upload the plugin file into your <code>/wp-content/plugins</code> directory. Once a plugin has been installed, you can activate it here.'), 'plugin-install.php', 'https://wordpress.org/plugins/') . '</p>'
+	'<p>' . __( 'The search for installed plugins will search for terms in their name, description, or author.' ) . ' <span id="live-search-desc" class="hide-if-no-js">' . __( 'The search results will be updated as you type.' ) . '</span></p>' .
+	'<p>' . sprintf(
+		/* translators: %s: WordPress Plugin Directory URL */
+		__( 'If you would like to see more plugins to choose from, click on the &#8220;Add New&#8221; button and you will be able to browse or search for additional plugins from the <a href="%s" target="_blank">WordPress Plugin Directory</a>. Plugins in the WordPress Plugin Directory are designed and developed by third parties, and are compatible with the license WordPress uses. Oh, and they&#8217;re free!' ),
+		'https://wordpress.org/plugins/'
+	) . '</p>'
 ) );
 get_current_screen()->add_help_tab( array(
 'id'		=> 'compatibility-problems',
 'title'		=> __('Troubleshooting'),
 'content'	=>
 	'<p>' . __('Most of the time, plugins play nicely with the core of WordPress and with other plugins. Sometimes, though, a plugin&#8217;s code will get in the way of another plugin, causing compatibility issues. If your site starts doing strange things, this may be the problem. Try deactivating all your plugins and re-activating them in various combinations until you isolate which one(s) caused the issue.') . '</p>' .
-	'<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>'
+	'<p>' . sprintf(
+		/* translators: WP_PLUGIN_DIR constant value */
+		__( 'If something goes wrong with a plugin and you can&#8217;t use WordPress, delete or rename that file in the %s directory and it will be automatically deactivated.' ),
+		'<code>' . WP_PLUGIN_DIR . '</code>'
+	) . '</p>'
 ) );
 
 get_current_screen()->set_help_sidebar(
 	'<p><strong>' . __('For more information:') . '</strong></p>' .
-	'<p>' . __('<a href="http://codex.wordpress.org/Managing_Plugins#Plugin_Management" target="_blank">Documentation on Managing Plugins</a>') . '</p>' .
+	'<p>' . __('<a href="https://codex.wordpress.org/Managing_Plugins#Plugin_Management" target="_blank">Documentation on Managing Plugins</a>') . '</p>' .
 	'<p>' . __('<a href="https://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
 );
 
+get_current_screen()->set_screen_reader_content( array(
+	'heading_views'      => __( 'Filter plugins list' ),
+	'heading_pagination' => __( 'Plugins list navigation' ),
+	'heading_list'       => __( 'Plugins list' ),
+) );
+
 $title = __('Plugins');
 $parent_file = 'plugins.php';
 
 require_once(ABSPATH . 'wp-admin/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>';
+if ( ! empty( $invalid ) ) {
+	foreach ( $invalid as $plugin_file => $error ) {
+		echo '<div id="message" class="error"><p>';
+		printf(
+			/* translators: 1: plugin file 2: error message */
+			__( 'The plugin %1$s has been <strong>deactivated</strong> due to an error: %2$s' ),
+			'<code>' . esc_html( $plugin_file ) . '</code>',
+			$error->get_error_message() );
+		echo '</p></div>';
+	}
+}
 ?>
 
 <?php if ( isset($_GET['error']) ) :
@@ -380,10 +430,16 @@ if ( !empty($invalid) )
 	else
 		$errmsg = __('Plugin could not be activated because it triggered a <strong>fatal error</strong>.');
 	?>
-	<div id="message" class="updated"><p><?php echo $errmsg; ?></p>
+	<div id="message" class="error"><p><?php echo $errmsg; ?></p>
 	<?php
-		if ( !isset( $_GET['main'] ) && !isset($_GET['charsout']) && wp_verify_nonce($_GET['_error_nonce'], 'plugin-activation-error_' . $plugin) ) { ?>
-	<iframe style="border:0" width="100%" height="70px" src="<?php echo 'plugins.php?action=error_scrape&amp;plugin=' . esc_attr($plugin) . '&amp;_wpnonce=' . esc_attr($_GET['_error_nonce']); ?>"></iframe>
+		if ( ! isset( $_GET['main'] ) && ! isset( $_GET['charsout'] ) && wp_verify_nonce( $_GET['_error_nonce'], 'plugin-activation-error_' . $plugin ) ) {
+			$iframe_url = add_query_arg( array(
+				'action'   => 'error_scrape',
+				'plugin'   => urlencode( $plugin ),
+				'_wpnonce' => urlencode( $_GET['_error_nonce'] ),
+			), admin_url( 'plugins.php' ) );
+		?>
+		<iframe style="border:0" width="100%" height="70px" src="<?php echo esc_url( $iframe_url ); ?>"></iframe>
 	<?php
 		}
 	?>
@@ -394,30 +450,45 @@ if ( !empty($invalid) )
 		delete_transient( 'plugins_delete_result_' . $user_ID );
 
 		if ( is_wp_error($delete_result) ) : ?>
-		<div id="message" class="updated"><p><?php printf( __('Plugin could not be deleted due to an error: %s'), $delete_result->get_error_message() ); ?></p></div>
+		<div id="message" class="error notice is-dismissible"><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"><p><?php _e('The selected plugins have been <strong>deleted</strong>.'); ?></p></div>
+		<div id="message" class="updated notice is-dismissible">
+			<p>
+				<?php
+				if ( 1 == (int) $_GET['deleted'] ) {
+					_e( 'The selected plugin has been <strong>deleted</strong>.' );
+				} else {
+					_e( 'The selected plugins have been <strong>deleted</strong>.' );
+				}
+				?>
+			</p>
+		</div>
 		<?php endif; ?>
 <?php elseif ( isset($_GET['activate']) ) : ?>
-	<div id="message" class="updated"><p><?php _e('Plugin <strong>activated</strong>.') ?></p></div>
+	<div id="message" class="updated notice is-dismissible"><p><?php _e('Plugin <strong>activated</strong>.') ?></p></div>
 <?php elseif (isset($_GET['activate-multi'])) : ?>
-	<div id="message" class="updated"><p><?php _e('Selected plugins <strong>activated</strong>.'); ?></p></div>
+	<div id="message" class="updated notice is-dismissible"><p><?php _e('Selected plugins <strong>activated</strong>.'); ?></p></div>
 <?php elseif ( isset($_GET['deactivate']) ) : ?>
-	<div id="message" class="updated"><p><?php _e('Plugin <strong>deactivated</strong>.') ?></p></div>
+	<div id="message" class="updated notice is-dismissible"><p><?php _e('Plugin <strong>deactivated</strong>.') ?></p></div>
 <?php elseif (isset($_GET['deactivate-multi'])) : ?>
-	<div id="message" class="updated"><p><?php _e('Selected plugins <strong>deactivated</strong>.'); ?></p></div>
+	<div id="message" class="updated notice is-dismissible"><p><?php _e('Selected plugins <strong>deactivated</strong>.'); ?></p></div>
 <?php elseif ( 'update-selected' == $action ) : ?>
-	<div id="message" class="updated"><p><?php _e('No out of date plugins were selected.'); ?></p></div>
+	<div id="message" class="updated notice is-dismissible"><p><?php _e('All selected plugins are up to date.'); ?></p></div>
 <?php endif; ?>
 
 <div class="wrap">
-<h2><?php echo esc_html( $title );
+<h1><?php echo esc_html( $title );
 if ( ( ! is_multisite() || is_network_admin() ) && current_user_can('install_plugins') ) { ?>
- <a href="<?php echo self_admin_url( 'plugin-install.php' ); ?>" class="add-new-h2"><?php echo esc_html_x('Add New', 'plugin'); ?></a>
-<?php }
-if ( $s )
-	printf( '<span class="subtitle">' . __('Search results for &#8220;%s&#8221;') . '</span>', esc_html( $s ) ); ?>
-</h2>
+ <a href="<?php echo self_admin_url( 'plugin-install.php' ); ?>" class="page-title-action"><?php echo esc_html_x('Add New', 'plugin'); ?></a>
+<?php
+}
+
+if ( strlen( $s ) ) {
+	/* translators: %s: search keywords */
+	printf( '<span class="subtitle">' . __( 'Search results for &#8220;%s&#8221;' ) . '</span>', esc_html( urldecode( $s ) ) );
+}
+?>
+</h1>
 
 <?php
 /**
@@ -437,11 +508,11 @@ do_action( 'pre_current_active_plugins', $plugins['all'] );
 
 <?php $wp_list_table->views(); ?>
 
-<form method="get" action="">
+<form class="search-form search-plugins" method="get">
 <?php $wp_list_table->search_box( __( 'Search Installed Plugins' ), 'plugin' ); ?>
 </form>
 
-<form method="post" action="">
+<form method="post" id="bulk-action-form">
 
 <input type="hidden" name="plugin_status" value="<?php echo esc_attr($status) ?>" />
 <input type="hidden" name="paged" value="<?php echo esc_attr($page) ?>" />
@@ -449,7 +520,12 @@ do_action( 'pre_current_active_plugins', $plugins['all'] );
 <?php $wp_list_table->display(); ?>
 </form>
 
+	<span class="spinner"></span>
 </div>
 
 <?php
+wp_print_request_filesystem_credentials_modal();
+wp_print_admin_notice_templates();
+wp_print_update_row_templates();
+
 include(ABSPATH . 'wp-admin/admin-footer.php');