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<?php
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/**
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* @file
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* Fetcher functions for the aggregator module.
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*/
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/**
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* Implements hook_aggregator_fetch_info().
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*/
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function aggregator_aggregator_fetch_info() {
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return array(
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'title' => t('Default fetcher'),
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'description' => t('Downloads data from a URL using Drupal\'s HTTP request handler.'),
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);
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}
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/**
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* Implements hook_aggregator_fetch().
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*/
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function aggregator_aggregator_fetch($feed) {
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$feed->source_string = FALSE;
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// Generate conditional GET headers.
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$headers = array();
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if ($feed->etag) {
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$headers['If-None-Match'] = $feed->etag;
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}
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if ($feed->modified) {
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$headers['If-Modified-Since'] = gmdate(DATE_RFC7231, $feed->modified);
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}
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// Request feed.
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$result = drupal_http_request($feed->url, array('headers' => $headers));
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// Process HTTP response code.
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switch ($result->code) {
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case 304:
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break;
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case 301:
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$feed->url = $result->redirect_url;
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// Do not break here.
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case 200:
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case 302:
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case 307:
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if (!isset($result->data)) {
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$result->data = '';
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}
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if (!isset($result->headers)) {
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$result->headers = array();
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}
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$feed->source_string = $result->data;
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$feed->http_headers = $result->headers;
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break;
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default:
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watchdog('aggregator', 'The feed from %site seems to be broken, due to "%error".', array('%site' => $feed->title, '%error' => $result->code . ' ' . $result->error), WATCHDOG_WARNING);
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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)));
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}
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return $feed->source_string === FALSE ? FALSE : TRUE;
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}
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