function parser_common_syndication_feedapi_feed in FeedAPI 5

Same name and namespace in other branches

1. 6 parser_common_syndication/parser_common_syndication.module \parser_common_syndication_feedapi_feed()

Implementation of hook_feedapi_feed().

File

parser_common_syndication/parser_common_syndication.module, line 24

Parse the incoming URL with SimpleXML then provide a data structure of the feed. Requires PHP5 because of SimpleXML.

Code

function parser_common_syndication_feedapi_feed($op) {
  $args = func_get_args();
  switch ($op) {
    case 'type':
      return array(
        "XML feed",
      );
    case 'compatible':
      if (!function_exists('simplexml_load_string')) {
        return FALSE;
      }
      $url = $args[1]->url;
      $downloaded_string = _parser_common_syndication_download($url, $op);
      if (is_object($downloaded_string)) {
        return array_shift(parser_common_syndication_feedapi_feed('type'));
      }
      if (!defined('LIBXML_VERSION') || version_compare(phpversion(), '5.1.0', '<')) {
        @($xml = simplexml_load_string($downloaded_string, NULL));
      }
      else {
        @($xml = simplexml_load_string($downloaded_string, NULL, LIBXML_NOERROR | LIBXML_NOWARNING));
      }
      if (_parser_common_syndication_feed_format_detect($xml) != FALSE) {

        // The parser is compatible. Then has to parse the feed and cache it. Because in the download
        // part, the feed etag data be already saved perhaps (depends on the webserver).
        $parsed_feed = _parser_common_syndication_feedapi_parse($xml);
        if (is_object($parsed_feed) && $parsed_feed->from_cache !== TRUE) {
          _parser_common_syndication_cache_set($url, $parsed_feed);
        }

        // We don't have to choose between the types, because this module is only able to parse one.
        return array_shift(parser_common_syndication_feedapi_feed('type'));
      }
      return FALSE;
    case 'parse':
      $feed = is_object($args[1]) ? $args[1] : FALSE;
      $parsed_feed = _parser_common_syndication_feedapi_parse($feed);
      if (is_object($parsed_feed) && $parsed_feed->from_cache !== TRUE) {
        _parser_common_syndication_cache_set($feed->url, $parsed_feed);
      }
      return $parsed_feed;
  }
}