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Request XML from an oEmbed provider if the provider returns '501 Not Implemented' for JSON. props nbachiyski, fixes #11964.

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git-svn-id: http://svn.automattic.com/wordpress/trunk@13996 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
nacin 2010-04-04 12:30:22 +00:00
parent 791192d961
commit f181423040
1 changed files with 48 additions and 21 deletions
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69
wp-includes/class-oembed.php
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@ -165,36 +165,63 @@ class WP_oEmbed {
function fetch( $provider, $url, $args = '' ) {
$args = wp_parse_args( $args, wp_embed_defaults() );
$provider = add_query_arg( 'format', 'json', $provider ); // JSON is easier to deal with than XML
$provider = add_query_arg( 'maxwidth', $args['width'], $provider );
$provider = add_query_arg( 'maxheight', $args['height'], $provider );
$provider = add_query_arg( 'url', urlencode($url), $provider );
if ( !$result = wp_remote_retrieve_body( wp_remote_get( $provider ) ) )
return false;
$result = trim( $result );
// JSON?
// Example content: http://vimeo.com/api/oembed.json?url=http%3A%2F%2Fvimeo.com%2F240975
if ( $data = json_decode($result) ) {
return $data;
foreach( array( 'json', 'xml' ) as $format ) {
$result = $this->_fetch_with_format( $provider, $format );
if ( is_wp_error( $result ) && 'not-implemented' == $result->get_error_code() )
continue;
return ( $result && ! is_wp_error( $result ) ) ? $result : false;
}
return false;
}
// Must be XML. Only parse it if PHP5 is installed. (PHP4 isn't worth the trouble.)
// Example content: http://vimeo.com/api/oembed.xml?url=http%3A%2F%2Fvimeo.com%2F240975
elseif ( function_exists('simplexml_load_string') ) {
/**
* Fetches result from an oEmbed provider for a specific format and complete provider URL
*
* @since 3.0.0
* @access private
* @param string $provider_url_with_args URL to the provider with full arguments list (url, maxheight, etc.)
* @param string $format Format to use
* @return bool|object False on failure, otherwise the result in the form of an object.
*/
function _fetch_with_format( $provider_url_with_args, $format ) {
$provider_url_with_args = add_query_arg( 'format', $format, $provider_url_with_args );
$response = wp_remote_get( $provider_url_with_args );
if ( 501 == wp_remote_retrieve_response_code( $response ) )
return new WP_Error( 'not-implemented' );
if ( ! $body = wp_remote_retrieve_body( $response ) )
return false;
$parse_method = "_parse_$format";
return $this->$parse_method( $body );
}
/**
* Parses a json response body.
*
* @since 3.0.0
* @access private
*/
function _parse_json( $response_body ) {
return ( ( $data = json_decode( trim( $response_body ) ) ) && is_object( $data ) ) ? $data : false;
}
/**
* Parses an XML response body.
*
* @since 3.0.0
* @access private
*/
function _parse_xml( $response_body ) {
if ( function_exists('simplexml_load_string') ) {
$errors = libxml_use_internal_errors( 'true' );
$data = simplexml_load_string( $result );
$data = simplexml_load_string( $response_body );
libxml_use_internal_errors( $errors );
if ( is_object($data) )
if ( is_object( $data ) )
return $data;
}
return false;
}