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<title>[31811] trunk/src/wp-admin: Request FTP and SSH credentials when needed during shiny updates</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/31811">31811</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/31811","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>jorbin</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-03-18 03:17:59 +0000 (Wed, 18 Mar 2015)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Request FTP and SSH credentials when needed during shiny updates

This is a restoration of <a href="https://core.trac.wordpress.org/changeset/31749">[31749]</a> which was reverted in <a href="https://core.trac.wordpress.org/changeset/31755">[31755]</a>.

It includes a number of enhancements from the original version.  Namely:
 * Not doing a credential check in src/wp-includes/script-loader.php
 * Add new function `wp_print_request_filesystem_credentials_modal`
 * update the version number in the list table when a plugin is updated

UI still needs further work, but this basic version should enable more testing

Props ericlewis, jorbin
See <a href="https://core.trac.wordpress.org/ticket/31528">#31528</a></pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmincssformscss">trunk/src/wp-admin/css/forms.css</a></li>
<li><a href="#trunksrcwpadminincludesajaxactionsphp">trunk/src/wp-admin/includes/ajax-actions.php</a></li>
<li><a href="#trunksrcwpadminincludesfilephp">trunk/src/wp-admin/includes/file.php</a></li>
<li><a href="#trunksrcwpadminjsupdatesjs">trunk/src/wp-admin/js/updates.js</a></li>
<li><a href="#trunksrcwpadminplugininstallphp">trunk/src/wp-admin/plugin-install.php</a></li>
<li><a href="#trunksrcwpadminpluginsphp">trunk/src/wp-admin/plugins.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmincssformscss"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/css/forms.css</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/css/forms.css  2015-03-18 02:50:17 UTC (rev 31810)
+++ trunk/src/wp-admin/css/forms.css    2015-03-18 03:17:59 UTC (rev 31811)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -848,6 +848,27 @@
</span><span class="cx" style="display: block; padding: 0 10px">        margin-bottom: 5px;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/*------------------------------------------------------------------------------
+   Credentials check dialog for Install and Updates
+------------------------------------------------------------------------------*/
+
+.request-filesystem-credentials-dialog {
+       display: none;
+}
+
+.request-filesystem-credentials-dialog .notification-dialog {
+       top: 15%;
+}
+
+.request-filesystem-credentials-dialog-content {
+       margin: 25px;
+}
+
+.request-filesystem-credentials-dialog-content input[type="text"],
+.request-filesystem-credentials-dialog-content input[type="password"] {
+       width: 85%;
+}
+
</ins><span class="cx" style="display: block; padding: 0 10px"> /* =Media Queries
</span><span class="cx" style="display: block; padding: 0 10px"> -------------------------------------------------------------- */
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span></span></pre></div>
<a id="trunksrcwpadminincludesajaxactionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/ajax-actions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/ajax-actions.php      2015-03-18 02:50:17 UTC (rev 31810)
+++ trunk/src/wp-admin/includes/ajax-actions.php        2015-03-18 03:17:59 UTC (rev 31811)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2913,6 +2913,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">        if ( is_wp_error( $result ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                $status['error'] = $result->get_error_message();
</span><span class="cx" style="display: block; padding: 0 10px">                wp_send_json_error( $status );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        } else if ( is_null( $result ) ) {
+               $status['errorCode'] = 'unable_to_connect_to_filesystem';
+               $status['error'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' );
+               wp_send_json_error( $status );
</ins><span class="cx" style="display: block; padding: 0 10px">         }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        $plugin_status = install_plugin_install_status( $api );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2933,10 +2937,16 @@
</span><span class="cx" style="display: block; padding: 0 10px">        $plugin = urldecode( $_POST['plugin'] );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        $status = array(
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                'update' => 'plugin',
-               'plugin' => $plugin,
-               'slug'   => sanitize_key( $_POST['slug'] ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         'update'     => 'plugin',
+               'plugin'     => $plugin,
+               'slug'       => sanitize_key( $_POST['slug'] ),
+               'oldVersion' => '',
+               'newVersion' => '',
</ins><span class="cx" style="display: block; padding: 0 10px">         );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
+       if ( $plugin_data['Version'] ) {
+               $status['oldVersion'] = sprintf( __( 'Version %s' ), $plugin_data['Version'] );
+       }
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        if ( ! current_user_can( 'update_plugins' ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                $status['error'] = __( 'You do not have sufficient permissions to update plugins on this site.' );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2956,15 +2966,31 @@
</span><span class="cx" style="display: block; padding: 0 10px">        $result = $upgrader->bulk_upgrade( array( $plugin ) );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        if ( is_array( $result ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $result = $result[ $plugin ];
-       }
-
-       if ( is_wp_error( $result ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $plugin_update_data = current( $result );
+               /*
+                * If the `update_plugins` site transient is empty (e.g. when you update
+                * two plugins in quick succession before the transient repopulates),
+                * this may be the return.
+                *
+                * Preferably something can be done to ensure `update_plugins` isn't empty.
+                * For now, surface some sort of error here.
+                */
+               if ( $plugin_update_data === true ) {
+                       wp_send_json_error( $status );
+               }
+               $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
+               if ( $plugin_data['Version'] ) {
+                       $status['newVersion'] = sprintf( __( 'Version %s' ), $plugin_data['Version'] );
+               }
+               wp_send_json_success( $status );
+       } else if ( is_wp_error( $result ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                 $status['error'] = $result->get_error_message();
</span><span class="cx" style="display: block; padding: 0 10px">                wp_send_json_error( $status );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        } else if ( is_bool( $result ) && ! $result ) {
+               $status['errorCode'] = 'unable_to_connect_to_filesystem';
+               $status['error'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' );
+               wp_send_json_error( $status );
</ins><span class="cx" style="display: block; padding: 0 10px">         }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
-       wp_send_json_success( $status );
</del><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span></span></pre></div>
<a id="trunksrcwpadminincludesfilephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/file.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/file.php      2015-03-18 02:50:17 UTC (rev 31810)
+++ trunk/src/wp-admin/includes/file.php        2015-03-18 03:17:59 UTC (rev 31811)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1192,3 +1192,29 @@
</span><span class="cx" style="display: block; padding: 0 10px"> <?php
</span><span class="cx" style="display: block; padding: 0 10px">        return false;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+/**
+ * Print the credentials modal when needed  
+ *
+ * @since 4.2.0
+ */
+function wp_print_request_filesystem_credentials_modal() {
+       $filesystem_method = get_filesystem_method();
+       ob_start();
+       $filesystem_credentials_are_stored = request_filesystem_credentials( self_admin_url() );
+       ob_end_clean();
+       $request_filesystem_credentials = ( $filesystem_method != 'direct' && ! $filesystem_credentials_are_stored );
+       if ( ! $request_filesystem_credentials ) {
+               return;
+       }
+       ?>
+       <div id="request-filesystem-credentials-dialog" class="notification-dialog-wrap request-filesystem-credentials-dialog">
+               <div class="notification-dialog-background"></div>
+               <div class="notification-dialog">
+                       <div class="request-filesystem-credentials-dialog-content">
+                               <?php request_filesystem_credentials( site_url() ); ?>
+                       <div>
+               </div>
+       </div>
+       <?php
+}
</ins></span></pre></div>
<a id="trunksrcwpadminjsupdatesjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/js/updates.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/js/updates.js  2015-03-18 02:50:17 UTC (rev 31810)
+++ trunk/src/wp-admin/js/updates.js    2015-03-18 03:17:59 UTC (rev 31811)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -22,6 +22,35 @@
</span><span class="cx" style="display: block; padding: 0 10px">        wp.updates.l10n = window._wpUpdatesSettings.l10n;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * Whether filesystem credentials need to be requested from the user.
+        *
+        * @since 4.2.0
+        *
+        * @var bool
+        */
+       wp.updates.shouldRequestFilesystemCredentials = null;
+
+       /**
+        * Filesystem credentials to be packaged along with the request.
+        *
+        * @since  4.2.0
+        *
+        * @var object
+        */
+       wp.updates.filesystemCredentials = {
+               ftp: {
+                       host: null,
+                       username: null,
+                       password: null,
+                       connectionType: null
+               },
+               ssh: {
+                       publicKey: null,
+                       privateKey: null
+               }
+       };
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * Flag if we're waiting for an install/update to complete.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @since 4.2.0
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -31,6 +60,15 @@
</span><span class="cx" style="display: block; padding: 0 10px">        wp.updates.updateLock = false;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * * Flag if we've done an install or update successfully.
+        *
+        * @since 4.2.0
+        *
+        * @var bool
+        */
+       wp.updates.updateDoneSuccessfully = false;
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * If the user tries to install/update a plugin while an install/update is
</span><span class="cx" style="display: block; padding: 0 10px">         * already happening, it can be placed in this queue to perform later.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -123,15 +161,20 @@
</span><span class="cx" style="display: block; padding: 0 10px">                wp.updates.updateLock = true;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                var data = {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        '_ajax_nonce': wp.updates.ajaxNonce,
-                       'plugin':      plugin,
-                       'slug':        slug
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 _ajax_nonce:     wp.updates.ajaxNonce,
+                       plugin:          plugin,
+                       slug:            slug,
+                       username:        wp.updates.filesystemCredentials.ftp.username,
+                       password:        wp.updates.filesystemCredentials.ftp.password,
+                       hostname:        wp.updates.filesystemCredentials.ftp.hostname,
+                       connection_type: wp.updates.filesystemCredentials.ftp.connectionType,
+                       public_key:      wp.updates.filesystemCredentials.ssh.publicKey,
+                       private_key:     wp.updates.filesystemCredentials.ssh.privateKey
</ins><span class="cx" style="display: block; padding: 0 10px">                 };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                wp.ajax.post( 'update-plugin', data )
</span><span class="cx" style="display: block; padding: 0 10px">                        .done( wp.updates.updateSuccess )
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        .fail( wp.updates.updateError )
-                       .always( wp.updates.updateAlways );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 .fail( wp.updates.updateError );
</ins><span class="cx" style="display: block; padding: 0 10px">         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -147,6 +190,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $message = $( '#' + response.slug ).next().find( '.update-message' );
</span><span class="cx" style="display: block; padding: 0 10px">                        $( '#' + response.slug ).addClass( 'updated' ).removeClass( 'update' );
</span><span class="cx" style="display: block; padding: 0 10px">                        $( '#' + response.slug + '-update' ).addClass( 'updated' ).removeClass( 'update' );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        // Update the version number in the row.
+                       var newText = $( '#' + response.slug ).find('.plugin-version-author-uri').html().replace( response.oldVersion, response.newVersion );
+                       $( '#' + response.slug ).find('.plugin-version-author-uri').html( newText );
</ins><span class="cx" style="display: block; padding: 0 10px">                 } else if ( 'plugin-install' === pagenow ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $message = $( '.plugin-card-' + response.slug ).find( '.update-now' );
</span><span class="cx" style="display: block; padding: 0 10px">                        $message.addClass( 'button-disabled' );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -157,6 +203,15 @@
</span><span class="cx" style="display: block; padding: 0 10px">                wp.a11y.speak( wp.updates.l10n.updatedMsg );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                wp.updates.decrementCount( 'plugin' );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+               wp.updates.updateDoneSuccessfully = true;
+
+               /*
+                * The lock can be released since the update was successful,
+                * and any other updates can commence.
+                */
+               wp.updates.updateLock = false;
+               wp.updates.queueChecker();
</ins><span class="cx" style="display: block; padding: 0 10px">         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -168,6 +223,11 @@
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><span class="cx" style="display: block; padding: 0 10px">        wp.updates.updateError = function( response ) {
</span><span class="cx" style="display: block; padding: 0 10px">                var $message;
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                wp.updates.updateDoneSuccessfully = false;
+               if ( response.errorCode && response.errorCode == 'unable_to_connect_to_filesystem' ) {
+                       wp.updates.credentialError( response, 'update-plugin' );
+                       return;
+               }
</ins><span class="cx" style="display: block; padding: 0 10px">                 if ( 'plugins' === pagenow || 'plugins-network' === pagenow ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $message = $( '#' + response.slug ).next().find( '.update-message' );
</span><span class="cx" style="display: block; padding: 0 10px">                } else if ( 'plugin-install' === pagenow ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -176,19 +236,24 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $message.removeClass( 'updating-message' );
</span><span class="cx" style="display: block; padding: 0 10px">                $message.text( wp.updates.l10n.updateFailed );
</span><span class="cx" style="display: block; padding: 0 10px">                wp.a11y.speak( wp.updates.l10n.updateFailed );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px">         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-         * After an update attempt has completed, check the queue.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+  * Show an error message in the request for credentials form.
</ins><span class="cx" style="display: block; padding: 0 10px">          *
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * @param {string} message
</ins><span class="cx" style="display: block; padding: 0 10px">          * @since 4.2.0
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        wp.updates.updateAlways = function() {
-               wp.updates.updateLock = false;
-               wp.updates.queueChecker();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ wp.updates.showErrorInCredentialsForm = function( message ) {
+               var $notificationDialog = $( '.notification-dialog' );
+
+               // Remove any existing error
+               $notificationDialog.find( '.error' ).remove();
+
+               $notificationDialog.find( 'h3' ).after( '<div class="error">' + message + '</div>' );
</ins><span class="cx" style="display: block; padding: 0 10px">         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
</del><span class="cx" style="display: block; padding: 0 10px">         /**
</span><span class="cx" style="display: block; padding: 0 10px">         * Send an Ajax request to the server to install a plugin.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -216,14 +281,19 @@
</span><span class="cx" style="display: block; padding: 0 10px">                wp.updates.updateLock = true;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                var data = {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        '_ajax_nonce': wp.updates.ajaxNonce,
-                       'slug':        slug
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 _ajax_nonce:     wp.updates.ajaxNonce,
+                       slug:            slug,
+                       username:        wp.updates.filesystemCredentials.ftp.username,
+                       password:        wp.updates.filesystemCredentials.ftp.password,
+                       hostname:        wp.updates.filesystemCredentials.ftp.hostname,
+                       connection_type: wp.updates.filesystemCredentials.ftp.connectionType,
+                       public_key:      wp.updates.filesystemCredentials.ssh.publicKey,
+                       private_key:     wp.updates.filesystemCredentials.ssh.privateKey
</ins><span class="cx" style="display: block; padding: 0 10px">                 };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                wp.ajax.post( 'install-plugin', data )
</span><span class="cx" style="display: block; padding: 0 10px">                        .done( wp.updates.installSuccess )
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        .fail( wp.updates.installError )
-                       .always( wp.updates.updateAlways );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 .fail( wp.updates.installError );
</ins><span class="cx" style="display: block; padding: 0 10px">         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -239,6 +309,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $message.removeClass( 'updating-message' ).addClass( 'updated-message button-disabled' );
</span><span class="cx" style="display: block; padding: 0 10px">                $message.text( wp.updates.l10n.installed );
</span><span class="cx" style="display: block; padding: 0 10px">                wp.a11y.speak( wp.updates.l10n.installedMsg );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                wp.updates.updateDoneSuccessfully = true;
+
+               /*
+                * The lock can be released since the update was successful,
+                * and any other updates can commence.
+                */
+               wp.updates.updateLock = false;
+               wp.updates.queueChecker();
</ins><span class="cx" style="display: block; padding: 0 10px">         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -250,11 +328,36 @@
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><span class="cx" style="display: block; padding: 0 10px">        wp.updates.installError = function( response ) {
</span><span class="cx" style="display: block; padding: 0 10px">                var $message = $( '.plugin-card-' + response.slug ).find( '.install-now' );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                wp.updates.updateDoneSuccessfully = false;
+               if ( response.errorCode && response.errorCode == 'unable_to_connect_to_filesystem' ) {
+                       wp.updates.credentialError( response, 'install-plugin' );
+                       return;
+               }
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                $message.removeClass( 'updating-message' );
</span><span class="cx" style="display: block; padding: 0 10px">                $message.text( wp.updates.l10n.installNow );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+               wp.updates.updateLock = false;
</ins><span class="cx" style="display: block; padding: 0 10px">         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        /**
+        * Events that need to happen when there is a credential error
+        *
+        * @since 4.2.0
+        */
+       wp.updates.credentialError = function( response, type ) {
+               wp.updates.updateQueue.push( {
+                       'type': type,
+                       'data': {
+                               // Not cool that we're depending on response for this data.
+                               // This would feel more whole in a view all tied together.
+                               plugin: response.plugin,
+                               slug: response.slug
+                       }
+               } );
+               wp.updates.showErrorInCredentialsForm( response.error );
+               wp.updates.requestFilesystemCredentials();
+       };
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><span class="cx" style="display: block; padding: 0 10px">         * If an install/update job has been placed in the queue, queueChecker pulls it out and runs it.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -282,9 +385,55 @@
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px">        };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+       /**
+        * Request the users filesystem credentials if we don't have them already
+        *
+        * @since 4.2.0
+        */
+       wp.updates.requestFilesystemCredentials = function() {
+               if ( wp.updates.updateDoneSuccessfully === false ) {
+                       wp.updates.updateLock = true;
+                       $( 'body' ).addClass( 'modal-open' );
+                       $( '#request-filesystem-credentials-dialog' ).show();
+               }
+       };
+
</ins><span class="cx" style="display: block; padding: 0 10px">         $( document ).ready( function() {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                /*
+                * Check whether a user needs to submit filesystem credentials based on whether
+                * the form was output on the page server-side.
+                *
+                * @see {wp_print_request_filesystem_credentials_modal() in PHP}
+                */
+               wp.updates.shouldRequestFilesystemCredentials = ( $( '#request-filesystem-credentials-dialog' ).length <= 0 ) ? false : true;
+
+               // File system credentials form submit noop-er / handler.
+               $( '#request-filesystem-credentials-dialog form' ).on( 'submit', function() {
+                       // Persist the credentials input by the user for the duration of the page load.
+                       wp.updates.filesystemCredentials.ftp.hostname = $('#hostname').val();
+                       wp.updates.filesystemCredentials.ftp.username = $('#username').val();
+                       wp.updates.filesystemCredentials.ftp.password = $('#password').val();
+                       wp.updates.filesystemCredentials.ftp.connectionType = $('input[name="connection_type"]:checked').val();
+                       wp.updates.filesystemCredentials.ssh.publicKey = $('#public_key').val();
+                       wp.updates.filesystemCredentials.ssh.privateKey = $('#private_key').val();
+
+                       $( '#request-filesystem-credentials-dialog' ).hide();
+                       $( 'body' ).removeClass( 'modal-open' );
+
+                       // Unlock and invoke the queue.
+                       wp.updates.updateLock = false;
+                       wp.updates.queueChecker();
+
+                       return false;
+               });
+
+               // Click handler for plugin updates in List Table view.
</ins><span class="cx" style="display: block; padding: 0 10px">                 $( '.plugin-update-tr .update-link' ).on( 'click', function( e ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        e.preventDefault();
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        if ( wp.updates.shouldRequestFilesystemCredentials && ! wp.updates.updateLock ) {
+                               wp.updates.requestFilesystemCredentials();
+                       }
</ins><span class="cx" style="display: block; padding: 0 10px">                         var $row = $( e.target ).parents( '.plugin-update-tr' );
</span><span class="cx" style="display: block; padding: 0 10px">                        wp.updates.updatePlugin( $row.data( 'plugin' ), $row.data( 'slug' ) );
</span><span class="cx" style="display: block; padding: 0 10px">                } );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -315,6 +464,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                $( '.plugin-card .install-now' ).on( 'click', function( e ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        e.preventDefault();
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        if ( wp.updates.shouldRequestFilesystemCredentials && ! wp.updates.updateLock ) {
+                               wp.updates.requestFilesystemCredentials();
+                       }
</ins><span class="cx" style="display: block; padding: 0 10px">                         var $button = $( e.target );
</span><span class="cx" style="display: block; padding: 0 10px">                        if ( $button.hasClass( 'button-disabled' ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                return;
</span></span></pre></div>
<a id="trunksrcwpadminplugininstallphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/plugin-install.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/plugin-install.php     2015-03-18 02:50:17 UTC (rev 31810)
+++ trunk/src/wp-admin/plugin-install.php       2015-03-18 03:17:59 UTC (rev 31811)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -128,7 +128,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">  */
</span><span class="cx" style="display: block; padding: 0 10px"> do_action( "install_plugins_$tab", $paged ); ?>
</span><span class="cx" style="display: block; padding: 0 10px"> </div>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-<?php
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+<?php 
+wp_print_request_filesystem_credentials_modal();
+
</ins><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px">  * WordPress Administration Template Footer.
</span><span class="cx" style="display: block; padding: 0 10px">  */
</span></span></pre></div>
<a id="trunksrcwpadminpluginsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/plugins.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/plugins.php    2015-03-18 02:50:17 UTC (rev 31810)
+++ trunk/src/wp-admin/plugins.php      2015-03-18 03:17:59 UTC (rev 31811)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -476,4 +476,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> </div>
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> <?php
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+wp_print_request_filesystem_credentials_modal();
+
</ins><span class="cx" style="display: block; padding: 0 10px"> include(ABSPATH . 'wp-admin/admin-footer.php');
</span></span></pre>
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