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Improved XML handling for oEmbed.

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git-svn-id: https://develop.svn.wordpress.org/trunk@24902 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Michael Adams (mdawaffe) 2013-07-30 21:57:27 +00:00
parent 2f9c67878e
commit 755d98f7dc
1 changed files with 38 additions and 13 deletions
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51
wp-includes/class-oembed.php
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@ -221,27 +221,52 @@ class WP_oEmbed {
* @access private
*/
function _parse_xml( $response_body ) {
if ( !function_exists('simplexml_load_string') ) {
return false;
}
if ( ! function_exists( 'libxml_disable_entity_loader' ) )
return false;
$loader = libxml_disable_entity_loader( true );
$errors = libxml_use_internal_errors( true );
$data = simplexml_load_string( $response_body );
libxml_use_internal_errors( $errors );
$return = false;
if ( is_object( $data ) ) {
$return = new stdClass;
foreach ( $data as $key => $value ) {
$return->$key = (string) $value;
}
$return = $this->_parse_xml_body( $response_body );
libxml_use_internal_errors( $errors );
libxml_disable_entity_loader( $loader );
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;
}
$xml = simplexml_import_dom( $dom );
if ( ! $xml )
return false;
$return = new stdClass;
foreach ( $xml as $key => $value ) {
$return->$key = (string) $value;
}
libxml_disable_entity_loader( $loader );
return $return;
}