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<?php
/**
* @file
* Fetcher functions for the aggregator module.
*/
/**
* Implements hook_aggregator_fetch_info().
*/
function aggregator_aggregator_fetch_info() {
return array(
'title' => t('Default fetcher'),
'description' => t('Downloads data from a URL using Drupal\'s HTTP request handler.'),
);
}
/**
* Implements hook_aggregator_fetch().
*/
function aggregator_aggregator_fetch($feed) {
$feed->source_string = FALSE;
// Generate conditional GET headers.
$headers = array();
if ($feed->etag) {
$headers['If-None-Match'] = $feed->etag;
}
if ($feed->modified) {
$headers['If-Modified-Since'] = gmdate(DATE_RFC1123, $feed->modified);
}
// Request feed.
$result = drupal_http_request($feed->url, array('headers' => $headers));
// Process HTTP response code.
switch ($result->code) {
case 304:
break;
case 301:
$feed->url = $result->redirect_url;
// Do not break here.
case 200:
case 302:
case 307:
if (!isset($result->data)) {
$result->data = '';
}
if (!isset($result->headers)) {
$result->headers = array();
}
$feed->source_string = $result->data;
$feed->http_headers = $result->headers;
break;
default:
watchdog('aggregator', 'The feed from %site seems to be broken, due to "%error".', array('%site' => $feed->title, '%error' => $result->code . ' ' . $result->error), WATCHDOG_WARNING);
drupal_set_message(t('The feed from %site seems to be broken, because of error "%error".', array('%site' => $feed->title, '%error' => $result->code . ' ' . $result->error)));
}
return $feed->source_string === FALSE ? FALSE : TRUE;
}
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