API@RTK0.NET

1. drupal
   1. 4.7
   2. 5 aggregator.module
   3. 6 aggregator.module
   4. 7 aggregator.parser.inc

Code

modules/aggregator.module, line 810

<?php
function aggregator_parse_feed(&$data, $feed) {
  global $items, $image, $channel;

  // Unset the global variables before we use them:
  unset($GLOBALS['element'], $GLOBALS['item'], $GLOBALS['tag']);
  $items = array();
  $image = array();
  $channel = array();

  // parse the data:
  $xml_parser = drupal_xml_parser_create($data);
  xml_set_element_handler($xml_parser, 'aggregator_element_start', 'aggregator_element_end');
  xml_set_character_data_handler($xml_parser, 'aggregator_element_data');

  if (!xml_parse($xml_parser, $data, 1)) {
    watchdog('aggregator', t('The RSS-feed from %site seems to be broken, due to an error "%error" on line %line.', array('%site' => theme('placeholder', $feed['title']), '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser))), WATCHDOG_WARNING);
    drupal_set_message(t('The RSS-feed from %site seems to be broken, because of error "%error" on line %line.', array('%site' => theme('placeholder', $feed['title']), '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser))), 'error');
    return 0;
  }
  xml_parser_free($xml_parser);

  /*
   ** We reverse the array such that we store the first item last,
   ** and the last item first.  In the database, the newest item
   ** should be at the top.
   */

  $items = array_reverse($items);

  foreach ($items as $item) {
    unset($title, $link, $author, $description);

    // Prepare the item:
    foreach ($item as $key => $value) {
      $item[$key] = trim($value);
    }

    /*
     ** Resolve the item's title.  If no title is found, we use
     ** up to 40 characters of the description ending at a word
     ** boundary but not splitting potential entities.
     */

    if ($item['TITLE']) {
      $title = $item['TITLE'];
    }
    else {
      $title = preg_replace('/^(.*)[^\w;&].*?$/', "\\1", truncate_utf8($item['DESCRIPTION'], 40));
    }

    /*
     ** Resolve the items link.
     */

    if ($item['LINK']) {
      $link = $item['LINK'];
    }
    elseif ($item['GUID'] && (strncmp($item['GUID'], 'http://', 7) == 0)) {
      $link = $item['GUID'];
    }
    else {
      $link = $feed['link'];
    }

    /**
     * Atom feeds have a CONTENT and/or SUMMARY tag instead of a DESCRIPTION tag
     */
    if ($item['CONTENT:ENCODED']) {
      $item['DESCRIPTION'] = $item['CONTENT:ENCODED'];
    }
    else if ($item['SUMMARY']) {
      $item['DESCRIPTION'] = $item['SUMMARY'];
    }
    else if ($item['CONTENT']) {
      $item['DESCRIPTION'] = $item['CONTENT'];
    }

    /*
     ** Try to resolve and parse the item's publication date.  If no
     ** date is found, we use the current date instead.
     */

    if ($item['PUBDATE']) {
      $date = $item['PUBDATE'];
    } // RSS 2.0
    else if ($item['DC:DATE']) {
      $date = $item['DC:DATE'];
    } // Dublin core
    else if ($item['DCTERMS:ISSUED']) {
      $date = $item['DCTERMS:ISSUED'];
    } // Dublin core
    else if ($item['DCTERMS:CREATED']) {
      $date = $item['DCTERMS:CREATED'];
    } // Dublin core
    else if ($item['DCTERMS:MODIFIED']) {
      $date = $item['DCTERMS:MODIFIED'];
    } // Dublin core
    else if ($item['ISSUED']) {
      $date = $item['ISSUED'];
    } // Atom XML
    else if ($item['CREATED']) {
      $date = $item['CREATED'];
    } // Atom XML
    else if ($item['MODIFIED']) {
      $date = $item['MODIFIED'];
    } // Atom XML
    else {
      $date = 'now';
    }

    $timestamp = strtotime($date); // As of PHP 5.1.0, strtotime returns FALSE on failure instead of -1.
    if ($timestamp <= 0) {
      $timestamp = aggregator_parse_w3cdtf($date); // Returns FALSE on failure
      if (!$timestamp) {
        $timestamp = time(); // better than nothing
      }
    }

    /*
     ** Save this item.  Try to avoid duplicate entries as much as
     ** possible.  If we find a duplicate entry, we resolve it and
     ** pass along it's ID such that we can update it if needed.
     */

    if ($link && $link != $feed['link'] && $link != $feed['url']) {
      $entry = db_fetch_object(db_query("SELECT iid FROM {aggregator_item} WHERE fid = %d AND link = '%s'", $feed['fid'], $link));
    }
    else {
      $entry = db_fetch_object(db_query("SELECT iid FROM {aggregator_item} WHERE fid = %d AND title = '%s'", $feed['fid'], $title));
    }

    aggregator_save_item(array('iid' => $entry->iid, 'fid' => $feed['fid'], 'timestamp' => $timestamp, 'title' => $title, 'link' => $link, 'author' => $item['AUTHOR'], 'description' => $item['DESCRIPTION']));
  }

  /*
   ** Remove all items that are older than flush item timer:
   */

  $age = time() - variable_get('aggregator_clear', 9676800);
  $result = db_query('SELECT iid FROM {aggregator_item} WHERE fid = %d AND timestamp < %d', $feed['fid'], $age);

  if (db_num_rows($result)) {
    $items = array();
    while ($item = db_fetch_object($result)) {
      $items[] = $item->iid;
    }
    db_query('DELETE FROM {aggregator_category_item} WHERE iid IN (' . implode(', ', $items) . ')');
    db_query('DELETE FROM {aggregator_item} WHERE fid = %d AND timestamp < %d', $feed['fid'], $age);
  }

  return 1;
}
?>