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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/44714">44714</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/44714","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>peterwilsoncc</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2019-01-29 21:28:57 +0000 (Tue, 29 Jan 2019)</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: Remove `wp_targeted_link_rel` pre-save filter from change-sets.

The pre-save filters added to links in <a href="https://core.trac.wordpress.org/changeset/43732">[43732]</a> could invalidate JSON data when saving Customizer change-sets.

This removes the filters when saving and publishing change-sets.

Props peterwilsoncc, nikeo for testing.
See <a href="https://core.trac.wordpress.org/ticket/45292">#45292</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesclasswpcustomizemanagerphp">trunk/src/wp-includes/class-wp-customize-manager.php</a></li>
<li><a href="#trunksrcwpincludesdefaultfiltersphp">trunk/src/wp-includes/default-filters.php</a></li>
<li><a href="#trunksrcwpincludesformattingphp">trunk/src/wp-includes/formatting.php</a></li>
<li><a href="#trunktestsphpunittestsformattingWPTargetedLinkRelphp">trunk/tests/phpunit/tests/formatting/WPTargetedLinkRel.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<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      2019-01-29 20:18:33 UTC (rev 44713)
+++ trunk/src/wp-includes/class-wp-customize-manager.php        2019-01-29 21:28:57 UTC (rev 44714)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2885,11 +2885,21 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $this->store_changeset_revision = $allow_revision;
</span><span class="cx" style="display: block; padding: 0 10px">                add_filter( 'wp_save_post_revision_post_has_changed', array( $this, '_filter_revision_post_has_changed' ), 5, 3 );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                // Update the changeset post. The publish_customize_changeset action will cause the settings in the changeset to be saved via WP_Customize_Setting::save().
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         /*
+                * Update the changeset post. The publish_customize_changeset action
+                * will cause the settings in the changeset to be saved via
+                * WP_Customize_Setting::save().
+                */
+
+               // Prevent content filters from corrupting JSON in post_content.
</ins><span class="cx" style="display: block; padding: 0 10px">                 $has_kses = ( false !== has_filter( 'content_save_pre', 'wp_filter_post_kses' ) );
</span><span class="cx" style="display: block; padding: 0 10px">                if ( $has_kses ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        kses_remove_filters(); // Prevent KSES from corrupting JSON in post_content.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 kses_remove_filters();
</ins><span class="cx" style="display: block; padding: 0 10px">                 }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                $has_targeted_link_rel_filters = ( false !== has_filter( 'content_save_pre', 'wp_targeted_link_rel' ) );
+               if ( $has_targeted_link_rel_filters ) {
+                       wp_remove_targeted_link_rel_filters();
+               }
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                // Note that updating a post with publish status will trigger WP_Customize_Manager::publish_changeset_values().
</span><span class="cx" style="display: block; padding: 0 10px">                if ( $changeset_post_id ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2918,9 +2928,15 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                $this->_changeset_post_id = $r; // Update cached post ID for the loaded changeset.
</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">+
+               // Restore removed content filters.
</ins><span class="cx" style="display: block; padding: 0 10px">                 if ( $has_kses ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        kses_init_filters();
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                if ( $has_targeted_link_rel_filters ) {
+                       wp_init_targeted_link_rel_filters();
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 $this->_changeset_data = null; // Reset so WP_Customize_Manager::changeset_data() will re-populate with updated contents.
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                remove_filter( 'wp_save_post_revision_post_has_changed', array( $this, '_filter_revision_post_has_changed' ) );
</span></span></pre></div>
<a id="trunksrcwpincludesdefaultfiltersphp"></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/default-filters.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/default-filters.php 2019-01-29 20:18:33 UTC (rev 44713)
+++ trunk/src/wp-includes/default-filters.php   2019-01-29 21:28:57 UTC (rev 44714)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -128,19 +128,7 @@
</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"> // Add proper rel values for links with target.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-foreach ( array(
-       'title_save_pre',
-       'content_save_pre',
-       'excerpt_save_pre',
-       'content_filtered_save_pre',
-       'pre_comment_content',
-       'pre_term_description',
-       'pre_link_description',
-       'pre_link_notes',
-       'pre_user_description',
-) as $filter ) {
-       add_filter( $filter, 'wp_targeted_link_rel' );
-};
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+add_action( 'init', 'wp_init_targeted_link_rel_filters' );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> // Format strings for display.
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( array( 'comment_author', 'term_name', 'link_name', 'link_description', 'link_notes', 'bloginfo', 'wp_title', 'widget_title' ) as $filter ) {
</span></span></pre></div>
<a id="trunksrcwpincludesformattingphp"></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/formatting.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/formatting.php      2019-01-29 20:18:33 UTC (rev 44713)
+++ trunk/src/wp-includes/formatting.php        2019-01-29 21:28:57 UTC (rev 44714)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3096,6 +3096,52 @@
</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">+ * Adds all filters modifying the rel attribute of targeted links.
+ *
+ * @since 5.1.0
+ */
+function wp_init_targeted_link_rel_filters() {
+       $filters = array(
+               'title_save_pre',
+               'content_save_pre',
+               'excerpt_save_pre',
+               'content_filtered_save_pre',
+               'pre_comment_content',
+               'pre_term_description',
+               'pre_link_description',
+               'pre_link_notes',
+               'pre_user_description',
+       );
+
+       foreach ( $filters as $filter ) {
+               add_filter( $filter, 'wp_targeted_link_rel' );
+       };
+}
+
+/**
+ * Removes all filters modifying the rel attribute of targeted links.
+ *
+ * @since 5.1.0
+ */
+function wp_remove_targeted_link_rel_filters() {
+       $filters = array(
+               'title_save_pre',
+               'content_save_pre',
+               'excerpt_save_pre',
+               'content_filtered_save_pre',
+               'pre_comment_content',
+               'pre_term_description',
+               'pre_link_description',
+               'pre_link_notes',
+               'pre_user_description',
+       );
+
+       foreach ( $filters as $filter ) {
+               remove_filter( $filter, 'wp_targeted_link_rel' );
+       };
+}
+
+/**
</ins><span class="cx" style="display: block; padding: 0 10px">  * Convert one smiley code to the icon graphic file equivalent.
</span><span class="cx" style="display: block; padding: 0 10px">  *
</span><span class="cx" style="display: block; padding: 0 10px">  * Callback handler for convert_smilies().
</span></span></pre></div>
<a id="trunktestsphpunittestsformattingWPTargetedLinkRelphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/formatting/WPTargetedLinkRel.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/formatting/WPTargetedLinkRel.php        2019-01-29 20:18:33 UTC (rev 44713)
+++ trunk/tests/phpunit/tests/formatting/WPTargetedLinkRel.php  2019-01-29 21:28:57 UTC (rev 44714)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -83,4 +83,22 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $expected = '<p>Links: <a href="/" target="_blank">Do not change me</a></p>';
</span><span class="cx" style="display: block; padding: 0 10px">                $this->assertEquals( $expected, wp_targeted_link_rel( $content ) );
</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 default content filters are added.
+        *
+        * @ticket 45292.
+        */
+       public function test_wp_targeted_link_rel_filters_run() {
+               $content  = '<p>Links: <a href="/" target="_blank">No rel</a></p>';
+               $expected = '<p>Links: <a href="/" target="_blank" rel="noopener noreferrer">No rel</a></p>';
+
+               $post = $this->factory()->post->create_and_get(
+                       array(
+                               'post_content' => $content,
+                       )
+               );
+
+               $this->assertEquals( $expected, $post->post_content );
+       }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
</div>
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