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<title>[40704] trunk/src: Customize: Igore invalid customization sessions.</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/40704">40704</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/40704","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>ocean90</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2017-05-16 12:06:32 +0000 (Tue, 16 May 2017)</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'>Customize: Igore invalid customization sessions.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmincustomizephp">trunk/src/wp-admin/customize.php</a></li>
<li><a href="#trunksrcwpadminjscustomizecontrolsjs">trunk/src/wp-admin/js/customize-controls.js</a></li>
<li><a href="#trunksrcwpincludesclasswpcustomizemanagerphp">trunk/src/wp-includes/class-wp-customize-manager.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmincustomizephp"></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/customize.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/customize.php  2017-05-16 08:53:28 UTC (rev 40703)
+++ trunk/src/wp-admin/customize.php    2017-05-16 12:06:32 UTC (rev 40704)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -155,7 +155,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        <div id="customize-info" class="accordion-section customize-info">
</span><span class="cx" style="display: block; padding: 0 10px">                                <div class="accordion-section-title">
</span><span class="cx" style="display: block; padding: 0 10px">                                        <span class="preview-notice"><?php
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                echo sprintf( __( 'You are customizing %s' ), '<strong class="panel-title site-title">' . get_bloginfo( 'name' ) . '</strong>' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                         echo sprintf( __( 'You are customizing %s' ), '<strong class="panel-title site-title">' . get_bloginfo( 'name', 'display' ) . '</strong>' );
</ins><span class="cx" style="display: block; padding: 0 10px">                                         ?></span>
</span><span class="cx" style="display: block; padding: 0 10px">                                        <button type="button" class="customize-help-toggle dashicons dashicons-editor-help" aria-expanded="false"><span class="screen-reader-text"><?php _e( 'Help' ); ?></span></button>
</span><span class="cx" style="display: block; padding: 0 10px">                                </div>
</span></span></pre></div>
<a id="trunksrcwpadminjscustomizecontrolsjs"></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/customize-controls.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/js/customize-controls.js       2017-05-16 08:53:28 UTC (rev 40703)
+++ trunk/src/wp-admin/js/customize-controls.js 2017-05-16 12:06:32 UTC (rev 40704)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4580,6 +4580,16 @@
</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">+                // Ensure preview nonce is included with every customized request, to allow post data to be read.
+               $.ajaxPrefilter( function injectPreviewNonce( options ) {
+                       if ( ! /wp_customize=on/.test( options.data ) ) {
+                               return;
+                       }
+                       options.data += '&' + $.param({
+                               customize_preview_nonce: api.settings.nonce.preview
+                       });
+               });
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 // Refresh the nonces if the preview sends updated nonces over.
</span><span class="cx" style="display: block; padding: 0 10px">                api.previewer.bind( 'nonce', function( nonce ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $.extend( this.nonce, nonce );
</span></span></pre></div>
<a id="trunksrcwpincludesclasswpcustomizemanagerphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-customize-manager.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-customize-manager.php      2017-05-16 08:53:28 UTC (rev 40703)
+++ trunk/src/wp-includes/class-wp-customize-manager.php        2017-05-16 12:06:32 UTC (rev 40704)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -487,6 +487,24 @@
</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">+                 * Clear incoming post data if the user lacks a CSRF token (nonce). Note that the customizer
+                * application will inject the customize_preview_nonce query parameter into all Ajax requests.
+                * For similar behavior elsewhere in WordPress, see rest_cookie_check_errors() which logs out
+                * a user when a valid nonce isn't present.
+                */
+               $has_post_data_nonce = (
+                       check_ajax_referer( 'preview-customize_' . $this->get_stylesheet(), 'nonce', false )
+                       ||
+                       check_ajax_referer( 'save-customize_' . $this->get_stylesheet(), 'nonce', false )
+                       ||
+                       check_ajax_referer( 'preview-customize_' . $this->get_stylesheet(), 'customize_preview_nonce', false )
+               );
+               if ( ! current_user_can( 'customize' ) || ! $has_post_data_nonce ) {
+                       unset( $_POST['customized'] );
+                       unset( $_REQUEST['customized'] );
+               }
+
+               /*
</ins><span class="cx" style="display: block; padding: 0 10px">                  * If unauthenticated then require a valid changeset UUID to load the preview.
</span><span class="cx" style="display: block; padding: 0 10px">                 * In this way, the UUID serves as a secret key. If the messenger channel is present,
</span><span class="cx" style="display: block; padding: 0 10px">                 * then send unauthenticated code to prompt re-auth.
</span></span></pre>
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