gistfile1.txt

class GuildWarsForeignAPIRepo extends ForeignAPIRepo {
	function fetchImageQuery( $query ) {
		global $wgMemc;

		$query = array_merge( $query,
			array(
				'format'    => 'json',
				'action'    => 'query'
			) );
		if ( $this->mApiBase ) {
			$url = wfAppendQuery( $this->mApiBase, $query );
		} else {
			$url = $this->makeUrl( $query, 'api' );
		}

		if( !isset( $this->mQueryCache[$url] ) ) {
			$key = $this->getLocalCacheKey( 'GuildWarsForeignAPIRepo', 'Metadata', md5( $url ) );
			$data = $wgMemc->get( $key );
			
			if( !$data ) {
				$data = self::httpGet( $url );
				if ( !$data ) {
					return null;
				}
				$wgMemc->set( $key, $data, 3600 );
			}

			if( count( $this->mQueryCache ) > 100 ) {
				// Keep the cache from growing infinitely
				$this->mQueryCache = array();
			}
			
			//shifchanges - this code supports embedding images that redirect to a non-image page.
			//get the hostname of the site. this should be something like wiki.guildwars.com. we need this for the image URL.
			preg_match('@^(?:http://)?([^/]+)@i',$url, $s_matches);
			$s_host = $s_matches[1];
			
			//get the filename of the image.
			preg_match('/File:(.*?)"/i',$data, $s_filename);
			$s_file = $s_filename[1];
			
			//remove redirect data
			preg_match('/,"redirects"(.*?)\]/',$data,$s_foo);
			$s_redir = $s_foo[0];
			
			//create image url
			$s_imgurl = str_replace('/','\/',"http://" . $s_host . "/images/" . substr(md5($s_file),0,1) . "/" . substr(md5($s_file),0,2) . "/" . $s_file);
	
			//create the description url
			$s_descurl = str_replace('/','\/',"http://" . $s_host . "/wiki/File:" . $s_file);
			
			//create file url for JSON string (escapes forward slashes)
			$s_fileurl = "http://" . $s_host . "/images/" . substr(md5($s_file),0,1) . "/" . substr(md5($s_file),0,2) . "/" . $s_file;
			
			//get the sha1 hash
			$s_sha1 = sha1_file($s_fileurl);
			
			//get the file size in bytes
			$s_size = strlen(file_get_contents($s_fileurl));
			
			//get image dimensions
			$s_dim = getimagesize($s_fileurl);
			$s_width = $s_dim[0];
			$s_height = $s_dim[1];
			
			//inject the URL into the string
			$data = str_replace($s_redir,'',preg_replace('/"imagerepository":""/','"imagerepository":"local","imageinfo":[{"size":"' . $s_size . '","width":"' . $s_width . '","height":"' . $s_height . '","url":"' . $s_imgurl . '","descriptionurl":"' . $s_descurl . '","sha1":"' . $s_sha1 . '"}]',$data));
			
			$this->mQueryCache[$url] = $data;
		}
		
		return FormatJson::decode( $this->mQueryCache[$url], true );
	}
}
$wgForeignFileRepos[] = array(
   'class'                   => 'GuildWarsForeignAPIRepo',
   'name'                    => 'shared',
   'apibase'                 => 'http://wiki.guildwars.com/api.php',
   'fetchDescription'        => true, // Optional
   'descriptionCacheExpiry'  => 43200, // 12 hours, optional (values are seconds)
   'apiThumbCacheExpiry'     => 43200, // 12 hours, optional, but required for local thumb caching
);