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<title>[41600] trunk: Embeds: Improve performance when embedding a post on Multisite.</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/41600">41600</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/41600","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>swissspidy</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2017-09-26 08:39:57 +0000 (Tue, 26 Sep 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'>Embeds: Improve performance when embedding a post on Multisite.

After <a href="https://core.trac.wordpress.org/changeset/37798">[37798]</a>, this fixes embeds coming from a different site in the network.

Props imath.
Fixes <a href="https://core.trac.wordpress.org/ticket/40673">#40673</a>. See <a href="https://core.trac.wordpress.org/ticket/36767">#36767</a>. </pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesembedphp">trunk/src/wp-includes/embed.php</a></li>
<li><a href="#trunktestsphpunittestsoembedwpOembedphp">trunk/tests/phpunit/tests/oembed/wpOembed.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesembedphp"></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/embed.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/embed.php   2017-09-26 08:32:21 UTC (rev 41599)
+++ trunk/src/wp-includes/embed.php     2017-09-26 08:39:57 UTC (rev 41600)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1071,6 +1071,32 @@
</span><span class="cx" style="display: block; padding: 0 10px">  *                     Null if the URL does not belong to the current site.
</span><span class="cx" style="display: block; padding: 0 10px">  */
</span><span class="cx" style="display: block; padding: 0 10px"> function wp_filter_pre_oembed_result( $result, $url, $args ) {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        if ( is_multisite() ) {
+               $url_parts = wp_parse_args( wp_parse_url( $url ), array(
+                       'host'   => '',
+                       'path'   => '/',
+               ) );
+
+               $qv = array( 'domain' => $url_parts['host'], 'path' => '/' );
+
+               // In case of subdirectory configs, set the path.
+               if ( ! is_subdomain_install() ) {
+                       $path = explode( '/', ltrim( $url_parts['path'], '/' ) );
+                       $path = reset( $path );
+
+                       if ( $path ) {
+                               $qv['path'] = get_network()->path . $path . '/';
+                       }
+               }
+
+               $sites = get_sites( $qv );
+               $site  = reset( $sites );
+
+               if ( $site && (int) $site->blog_id !== get_current_blog_id() ) {
+                       switch_to_blog( $site->blog_id );
+               }
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         $post_id = url_to_postid( $url );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /** This filter is documented in wp-includes/class-wp-oembed-controller.php */
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1085,6 +1111,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">        $data = get_oembed_response_data( $post_id, $width );
</span><span class="cx" style="display: block; padding: 0 10px">        $data = _wp_oembed_get_object()->data2html( (object) $data, $url );
</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 ( is_multisite() && ms_is_switched() ) {
+               restore_current_blog();
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         if ( ! $data ) {
</span><span class="cx" style="display: block; padding: 0 10px">                return $result;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span></span></pre></div>
<a id="trunktestsphpunittestsoembedwpOembedphp"></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/oembed/wpOembed.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/oembed/wpOembed.php     2017-09-26 08:32:21 UTC (rev 41599)
+++ trunk/tests/phpunit/tests/oembed/wpOembed.php       2017-09-26 08:39:57 UTC (rev 41600)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -69,4 +69,106 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $this->assertNotFalse( $this->pre_oembed_result_filtered );
</span><span class="cx" style="display: block; padding: 0 10px">                $this->assertFalse( $actual );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+       /**
+        * @ticket 40673
+        * @group multisite
+        * @group ms-required
+        */
+       public function test_wp_filter_pre_oembed_result_multisite_root_root() {
+               $post_id   = self::factory()->post->create();
+               $permalink = get_permalink( $post_id );
+
+               add_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+               $actual = $this->oembed->get_html( $permalink );
+               remove_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+
+               $this->assertNotNull( $this->pre_oembed_result_filtered );
+               $this->assertEquals( $this->pre_oembed_result_filtered, $actual );
+       }
+
+       /**
+        * @ticket 40673
+        * @group multisite
+        * @group ms-required
+        */
+       public function test_wp_filter_pre_oembed_result_multisite_sub_samesub() {
+               $user_id = self::factory()->user->create();
+
+               $blog_id = self::factory()->blog->create( array(
+                       'user_id' => $user_id,
+               ) );
+
+               switch_to_blog( $blog_id );
+
+               $post_id   = self::factory()->post->create();
+               $permalink = get_permalink( $post_id );
+
+               add_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+               $actual = $this->oembed->get_html( $permalink );
+               remove_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+
+               restore_current_blog();
+
+               $this->assertNotNull( $this->pre_oembed_result_filtered );
+               $this->assertEquals( $this->pre_oembed_result_filtered, $actual );
+       }
+
+       /**
+        * @ticket 40673
+        * @group multisite
+        * @group ms-required
+        */
+       public function test_wp_filter_pre_oembed_result_multisite_sub_othersub() {
+               $user_id = self::factory()->user->create();
+
+               $blog_id = self::factory()->blog->create( array(
+                       'user_id' => $user_id,
+               ) );
+
+               switch_to_blog( $blog_id );
+
+               $post_id   = self::factory()->post->create();
+               $permalink = get_permalink( $post_id );
+
+               $blog_id = self::factory()->blog->create( array(
+                       'user_id' => $user_id,
+               ) );
+
+               switch_to_blog( $blog_id );
+
+               add_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+               $actual = $this->oembed->get_html( $permalink );
+               remove_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+
+               restore_current_blog();
+
+               $this->assertNotNull( $this->pre_oembed_result_filtered );
+               $this->assertEquals( $this->pre_oembed_result_filtered, $actual );
+       }
+
+       /**
+        * @ticket 40673
+        * @group multisite
+        * @group ms-required
+        */
+       public function test_wp_filter_pre_oembed_result_multisite_sub_main() {
+               $post_id   = self::factory()->post->create();
+               $permalink = get_permalink( $post_id );
+               $user_id   = self::factory()->user->create();
+               $blog_id   = self::factory()->blog->create( array(
+                       'user_id' => $user_id,
+               ) );
+
+               switch_to_blog( $blog_id );
+
+               add_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+               $actual = $this->oembed->get_html( $permalink );
+               remove_filter( 'pre_oembed_result', array( $this, '_filter_pre_oembed_result' ) );
+
+               restore_current_blog();
+
+               $this->assertNotNull( $this->pre_oembed_result_filtered );
+               $this->assertEquals( $this->pre_oembed_result_filtered, $actual );
+       }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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