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<title>[22451] trunk/wp-includes/post-template.php: Sanity checks in get_body_class() to ensure we are operating on the type of queried object that we expect.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/22451">22451</a></dd>
<dt>Author</dt> <dd>nacin</dd>
<dt>Date</dt> <dd>2012-11-07 22:12:44 +0000 (Wed, 07 Nov 2012)</dd>
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<h3>Log Message</h3>
<pre>Sanity checks in get_body_class() to ensure we are operating on the type of queried object that we expect. props wonderboymusic. fixes <a href="http://core.trac.wordpress.org/ticket/17662">#17662</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesposttemplatephp">trunk/wp-includes/post-template.php</a></li>
</ul>

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<h3>Diff</h3>
<a id="trunkwpincludesposttemplatephp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/post-template.php (22450 => 22451)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/post-template.php        2012-11-07 22:09:05 UTC (rev 22450)
+++ trunk/wp-includes/post-template.php        2012-11-07 22:12:44 UTC (rev 22451)
</span><span class="lines">@@ -429,17 +429,19 @@
</span><span class="cx">                 $post = $wp_query-&gt;get_queried_object();
</span><span class="cx"> 
</span><span class="cx">                 $classes[] = 'single';
</span><del>-                $classes[] = 'single-' . sanitize_html_class($post-&gt;post_type, $post_id);
-                $classes[] = 'postid-' . $post_id;
</del><ins>+                if ( isset( $post-&gt;post_type ) ) {
+                        $classes[] = 'single-' . sanitize_html_class($post-&gt;post_type, $post_id);
+                        $classes[] = 'postid-' . $post_id;
</ins><span class="cx"> 
</span><del>-                // Post Format
-                if ( post_type_supports( $post-&gt;post_type, 'post-formats' ) ) {
-                        $post_format = get_post_format( $post-&gt;ID );
</del><ins>+                        // Post Format
+                        if ( post_type_supports( $post-&gt;post_type, 'post-formats' ) ) {
+                                $post_format = get_post_format( $post-&gt;ID );
</ins><span class="cx"> 
</span><del>-                        if ( $post_format &amp;&amp; !is_wp_error($post_format) )
-                                $classes[] = 'single-format-' . sanitize_html_class( $post_format );
-                        else
-                                $classes[] = 'single-format-standard';
</del><ins>+                                if ( $post_format &amp;&amp; !is_wp_error($post_format) )
+                                        $classes[] = 'single-format-' . sanitize_html_class( $post_format );
+                                else
+                                        $classes[] = 'single-format-standard';
+                        }                        
</ins><span class="cx">                 }
</span><span class="cx"> 
</span><span class="cx">                 if ( is_attachment() ) {
</span><span class="lines">@@ -455,23 +457,31 @@
</span><span class="cx">                 } else if ( is_author() ) {
</span><span class="cx">                         $author = $wp_query-&gt;get_queried_object();
</span><span class="cx">                         $classes[] = 'author';
</span><del>-                        $classes[] = 'author-' . sanitize_html_class( $author-&gt;user_nicename , $author-&gt;ID );
-                        $classes[] = 'author-' . $author-&gt;ID;
</del><ins>+                        if ( isset( $author-&gt;user_nicename ) ) {
+                                $classes[] = 'author-' . sanitize_html_class( $author-&gt;user_nicename, $author-&gt;ID );
+                                $classes[] = 'author-' . $author-&gt;ID;                                
+                        }
</ins><span class="cx">                 } elseif ( is_category() ) {
</span><span class="cx">                         $cat = $wp_query-&gt;get_queried_object();
</span><span class="cx">                         $classes[] = 'category';
</span><del>-                        $classes[] = 'category-' . sanitize_html_class( $cat-&gt;slug, $cat-&gt;term_id );
-                        $classes[] = 'category-' . $cat-&gt;term_id;
</del><ins>+                        if ( isset( $cat-&gt;term_id ) ) {
+                                $classes[] = 'category-' . sanitize_html_class( $cat-&gt;slug, $cat-&gt;term_id );
+                                $classes[] = 'category-' . $cat-&gt;term_id;                                
+                        }
</ins><span class="cx">                 } elseif ( is_tag() ) {
</span><span class="cx">                         $tags = $wp_query-&gt;get_queried_object();
</span><span class="cx">                         $classes[] = 'tag';
</span><del>-                        $classes[] = 'tag-' . sanitize_html_class( $tags-&gt;slug, $tags-&gt;term_id );
-                        $classes[] = 'tag-' . $tags-&gt;term_id;
</del><ins>+                        if ( isset( $tags-&gt;term_id ) ) {
+                                $classes[] = 'tag-' . sanitize_html_class( $tags-&gt;slug, $tags-&gt;term_id );
+                                $classes[] = 'tag-' . $tags-&gt;term_id;                                
+                        }
</ins><span class="cx">                 } elseif ( is_tax() ) {
</span><span class="cx">                         $term = $wp_query-&gt;get_queried_object();
</span><del>-                        $classes[] = 'tax-' . sanitize_html_class( $term-&gt;taxonomy );
-                        $classes[] = 'term-' . sanitize_html_class( $term-&gt;slug, $term-&gt;term_id );
-                        $classes[] = 'term-' . $term-&gt;term_id;
</del><ins>+                        if ( isset( $term-&gt;term_id ) ) {
+                                $classes[] = 'tax-' . sanitize_html_class( $term-&gt;taxonomy );
+                                $classes[] = 'term-' . sanitize_html_class( $term-&gt;slug, $term-&gt;term_id );
+                                $classes[] = 'term-' . $term-&gt;term_id;
+                        }
</ins><span class="cx">                 }
</span><span class="cx">         } elseif ( is_page() ) {
</span><span class="cx">                 $classes[] = 'page';
</span></span></pre>
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