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<title>[24902] trunk/wp-includes/class-oembed.php: Improved XML handling for oEmbed.</title>
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<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/24902">24902</a></dd>
<dt>Author</dt> <dd>mdawaffe</dd>
<dt>Date</dt> <dd>2013-07-30 21:57:27 +0000 (Tue, 30 Jul 2013)</dd>
</dl>
<h3>Log Message</h3>
<pre>Improved XML handling for oEmbed.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesclassoembedphp">trunk/wp-includes/class-oembed.php</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="trunkwpincludesclassoembedphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/class-oembed.php (24901 => 24902)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/class-oembed.php 2013-07-30 20:27:35 UTC (rev 24901)
+++ trunk/wp-includes/class-oembed.php 2013-07-30 21:57:27 UTC (rev 24902)
</span><span class="lines">@@ -221,27 +221,52 @@
</span><span class="cx"> * @access private
</span><span class="cx"> */
</span><span class="cx"> function _parse_xml( $response_body ) {
</span><del>- if ( !function_exists('simplexml_load_string') ) {
- return false;
- }
</del><span class="cx"> if ( ! function_exists( 'libxml_disable_entity_loader' ) )
</span><span class="cx"> return false;
</span><span class="cx">
</span><span class="cx"> $loader = libxml_disable_entity_loader( true );
</span><ins>+ $errors = libxml_use_internal_errors( true );
</ins><span class="cx">
</span><del>- $errors = libxml_use_internal_errors( true );
- $data = simplexml_load_string( $response_body );
</del><ins>+ $return = $this->_parse_xml_body( $response_body );
+
</ins><span class="cx"> libxml_use_internal_errors( $errors );
</span><ins>+ libxml_disable_entity_loader( $loader );
</ins><span class="cx">
</span><del>- $return = false;
- if ( is_object( $data ) ) {
- $return = new stdClass;
- foreach ( $data as $key => $value ) {
- $return->$key = (string) $value;
- }
</del><ins>+ return $return;
+ }
+
+ /**
+ * Helper function for parsing an XML response body.
+ *
+ * @since 3.6.0
+ * @access private
+ */
+ private function _parse_xml_body( $response_body ) {
+ if ( ! function_exists( 'simplexml_import_dom' ) || ! class_exists( 'DOMDocument' ) )
+ return false;
+
+ $dom = new DOMDocument;
+ $success = $dom->loadXML( $response_body );
+ if ( ! $success )
+ return false;
+
+ if ( isset( $dom->doctype ) )
+ return false;
+
+ foreach ( $dom->childNodes as $child ) {
+ if ( XML_DOCUMENT_TYPE_NODE === $child->nodeType )
+ return false;
</ins><span class="cx"> }
</span><span class="cx">
</span><del>- libxml_disable_entity_loader( $loader );
</del><ins>+ $xml = simplexml_import_dom( $dom );
+ if ( ! $xml )
+ return false;
+
+ $return = new stdClass;
+ foreach ( $xml as $key => $value ) {
+ $return->$key = (string) $value;
+ }
+
</ins><span class="cx"> return $return;
</span><span class="cx"> }
</span><span class="cx">
</span></span></pre>
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