/**
* Retrieve the metadata file.
*
* This function will check its cached copy, to see whether it can be used.
*
* @return SAML2_XML_md_EntityDescriptor|SAML2_XML_md_EntitiesDescriptor|NULL The downloaded metadata.
*/
public function getMetadata()
{
if ($this->metadata !== NULL) {
/* We have already downloaded the metdata. */
return $this->metadata;
}
if (!$this->aggregator->isCacheValid($this->cacheId, $this->cacheTag)) {
$this->updateCache();
if ($this->metadata !== NULL) {
return $this->metadata;
}
/* We were unable to update the cache - use cached metadata. */
}
$cacheFile = $this->aggregator->getCacheFile($this->cacheId);
if (!file_exists($cacheFile)) {
SimpleSAML\Logger::error($this->logLoc . 'No cached metadata available.');
return NULL;
}
SimpleSAML\Logger::debug($this->logLoc . 'Using cached metadata from ' . var_export($cacheFile, TRUE));
$metadata = file_get_contents($cacheFile);
if ($metadata !== NULL) {
$this->metadata = unserialize($metadata);
return $this->metadata;
}
return NULL;
}
/**
* cron hook to update aggregator2 metadata.
*
* @param array &$croninfo Output
*/
function aggregator2_hook_cron(&$croninfo)
{
assert('is_array($croninfo)');
assert('array_key_exists("summary", $croninfo)');
assert('array_key_exists("tag", $croninfo)');
$cronTag = $croninfo['tag'];
$config = SimpleSAML_Configuration::getConfig('module_aggregator2.php');
$config = $config->toArray();
foreach ($config as $id => $c) {
if (!isset($c['cron.tag'])) {
continue;
}
if ($c['cron.tag'] !== $cronTag) {
continue;
}
try {
$a = sspmod_aggregator2_Aggregator::getAggregator($id);
$a->updateCache();
} catch (Exception $e) {
$croninfo['summary'][] = 'Error during aggregator2 cacheupdate: ' . $e->getMessage();
}
}
}
<?php
if (!isset($_REQUEST['id'])) {
throw new SimpleSAML_Error_BadRequest('Missing required id-parameter.');
}
$id = (string) $_REQUEST['id'];
$aggregator = sspmod_aggregator2_Aggregator::getAggregator($id);
$xml = $aggregator->getMetadata();
header('Content-Type: application/samlmetadata+xml');
header('Content-Length: ' . strlen($xml));
/*
* At this point, if the ID was forged, getMetadata() would
* have failed to find a valid metadata set, so we can trust it.
*/
header('Content-Disposition: filename=' . $id . '.xml');
echo $xml;
