59 lines
2 KiB
Plaintext
59 lines
2 KiB
Plaintext
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<?php
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/**
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* Implements hook_menu().
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*/
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function aggregator_test_menu() {
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$items['aggregator/test-feed'] = array(
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'title' => 'Test feed static last modified date',
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'description' => "A cached test feed with a static last modified date.",
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'page callback' => 'aggregator_test_feed',
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'access arguments' => array('access content'),
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'type' => MENU_CALLBACK,
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);
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return $items;
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}
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/**
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* Page callback. Generates a test feed and simulates last-modified and etags.
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*
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* @param $use_last_modified
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* Set TRUE to send a last modified header.
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* @param $use_etag
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* Set TRUE to send an etag.
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*/
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function aggregator_test_feed($use_last_modified = FALSE, $use_etag = FALSE) {
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$last_modified = strtotime('Sun, 19 Nov 1978 05:00:00 GMT');
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$etag = drupal_hash_base64($last_modified);
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$if_modified_since = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) : FALSE;
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$if_none_match = isset($_SERVER['HTTP_IF_NONE_MATCH']) ? stripslashes($_SERVER['HTTP_IF_NONE_MATCH']) : FALSE;
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// Send appropriate response. We respond with a 304 not modified on either
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// etag or on last modified.
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if ($use_last_modified) {
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drupal_add_http_header('Last-Modified', gmdate(DATE_RFC7231, $last_modified));
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}
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if ($use_etag) {
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drupal_add_http_header('ETag', $etag);
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}
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// Return 304 not modified if either last modified or etag match.
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if ($last_modified == $if_modified_since || $etag == $if_none_match) {
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drupal_add_http_header('Status', '304 Not Modified');
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return;
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}
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// The following headers force validation of cache:
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drupal_add_http_header('Expires', 'Sun, 19 Nov 1978 05:00:00 GMT');
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drupal_add_http_header('Cache-Control', 'must-revalidate');
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drupal_add_http_header('Content-Type', 'application/rss+xml; charset=utf-8');
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// Read actual feed from file.
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$file_name = DRUPAL_ROOT . '/' . drupal_get_path('module', 'aggregator') . '/tests/aggregator_test_rss091.xml';
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$handle = fopen($file_name, 'r');
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$feed = fread($handle, filesize($file_name));
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fclose($handle);
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print $feed;
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}
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