<?php
namespace Gatekeeper;
use Gatekeeper\Metrics\Metrics;
$Endpoint = $_EVENT['request']->getEndpoint();
$userIdentifier = $_EVENT['request']->getUserIdentifier();
// build identifier string for current user
$_EVENT['metrics']['endpointRequests'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/requests");
$_EVENT['metrics']['endpointUserRequests'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/users/{$userIdentifier}/requests");
<?php
namespace Gatekeeper;
use Gatekeeper\Metrics\Metrics;
$Endpoint = $_EVENT['request']->getEndpoint();
// append metrics
$_EVENT['metrics']['endpointResponsesExecuted'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/responsesExecuted");
$_EVENT['metrics']['endpointBytesExecuted'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/bytesExecuted", $_EVENT['Transaction']->ResponseBytes);
$_EVENT['metrics']['endpointResponseTime'] = Metrics::appendAverage("endpoints/{$Endpoint->ID}/responseTime", $_EVENT['Transaction']->ResponseTime, $_EVENT['metrics']['endpointResponsesExecuted']);
// drip bandwidth bucket
if ($Endpoint->GlobalBandwidthPeriod && $Endpoint->GlobalBandwidthCount) {
HitBuckets::drip("endpoints/{$Endpoint->ID}/bandwidth", function () use($Endpoint) {
return ['seconds' => $Endpoint->GlobalBandwidthPeriod, 'count' => $Endpoint->GlobalBandwidthCount];
}, $_EVENT['Transaction']->ResponseBytes);
}
<?php
namespace Gatekeeper;
use Gatekeeper\Alerts\TransactionFailed;
use Gatekeeper\Alerts\ResponseTimeLimitExceeded;
use Gatekeeper\Metrics\Metrics;
$Endpoint = $_EVENT['request']->getEndpoint();
// send email alert if response code is 500+ and alerts are enabled
if ($_EVENT['responseCode'] >= 500 and $Endpoint->AlertOnError) {
$_EVENT['metrics']['endpointResponsesFailed'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/responsesFailed");
TransactionFailed::open($Endpoint, ['transactionId' => $_EVENT['Transaction']->ID, 'request' => ['uri' => $_EVENT['request']->getUrl()], 'response' => ['status' => $_EVENT['responseCode'], 'headers' => $_EVENT['responseHeaders'], 'body' => $_EVENT['responseBody'], 'bytes' => $_EVENT['Transaction']->ResponseBytes, 'time' => $_EVENT['Transaction']->ResponseTime]]);
} elseif ($_EVENT['responseCode'] == 0 && $_EVENT['curlError'] == CURLE_OPERATION_TIMEOUTED) {
$_EVENT['metrics']['endpointResponsesTimedOut'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/responsesTimedOut");
ResponseTimeLimitExceeded::open($Endpoint, ['transactionId' => $_EVENT['Transaction']->ID, 'request' => ['uri' => $_EVENT['request']->getUrl()], 'response' => ['time' => round($_EVENT['curlInfo']['total_time'] * 1000)]]);
}
public function getAverageMetric($averageName, $counterName)
{
if (!array_key_exists($averageName, $this->_metricsCache['averages'])) {
$this->_metricsCache['averages'][$averageName] = Metrics::estimateAverage("endpoints/{$this->ID}/{$averageName}", "endpoints/{$this->ID}/{$counterName}");
}
return $this->_metricsCache['averages'][$averageName];
}
die('Host does not have a cron_key configured');
}
if (empty($_GET['cron_key'])) {
header('HTTP/1.0 401 Unauthorized');
die('cron_key required');
}
if ($_GET['cron_key'] != $cronKey) {
header('HTTP/1.0 401 Unauthorized');
die('cron_key is incorrect');
}
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
header('HTTP/1.0 405 Method Not Allowed');
die('POST method required');
}
$cacheKeyPrefix = Cache::getKeyPrefix();
$currentSampleIndex = Metrics::getCurrentSampleIndex();
$flushed = 0;
foreach (Cache::getIterator('|^metrics/|') as $cacheEntry) {
if (!preg_match('|^' . preg_quote($cacheKeyPrefix) . '(metrics/(.*)/(\\d+))$|', $cacheEntry['key'], $matches)) {
continue;
}
$cacheKey = $matches[1];
$metricKey = $matches[2];
$sampleIndex = (int) $matches[3];
// skip active and previus samples
if ($sampleIndex >= $currentSampleIndex - 1) {
continue;
}
// delete sample from cache
Cache::delete($cacheKey);
// save metric to DB
<?php
namespace Gatekeeper;
use Cache;
use Gatekeeper\Metrics\Metrics;
$Endpoint = $_EVENT['request']->getEndpoint();
$url = $_EVENT['request']->getUrl();
// attempt to load response from cache if enabled for this endpoint
if ($_SERVER['REQUEST_METHOD'] == 'GET' && $Endpoint->CachingEnabled) {
$cacheKey = "response:{$Endpoint->ID}:{$url}";
if ($cachedResponse = Cache::fetch($cacheKey)) {
if ($cachedResponse['expires'] < $_EVENT['request']->getStartTime()) {
Cache::delete($cacheKey);
$cachedResponse = false;
} else {
foreach ($cachedResponse['headers'] as $header) {
header($header);
}
print $cachedResponse['body'];
$_EVENT['metrics']['endpointResponsesCached'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/responsesCached");
$_EVENT['metrics']['endpointBytesCached'] = Metrics::appendCounter("endpoints/{$Endpoint->ID}/bytesCached", strlen($cachedResponse['body']));
\Site::finishRequest();
}
}
}
