<?php
namespace Gatekeeper;
use DB;
use HttpProxy;
use Gatekeeper\Alerts\TestFailed;
use Gatekeeper\Endpoints\Endpoint;
use Gatekeeper\Transactions\PingTransaction;
// find all endpoints that are overdue or near due for a ping
$endpoints = Endpoint::getAllByQuery('SELECT Endpoint.*' . ' FROM `%s` Endpoint' . ' WHERE' . ' Endpoint.PingFrequency IS NOT NULL AND' . ' IFNULL((' . ' SELECT Created FROM `%s` Transaction WHERE EndpointID = Endpoint.ID AND Class = "%s" ORDER BY ID DESC LIMIT 1' . ' ), 0) < DATE_SUB(CURRENT_TIMESTAMP, INTERVAL (Endpoint.PingFrequency * 0.7) MINUTE)', [Endpoint::$tableName, PingTransaction::$tableName, DB::escape(PingTransaction::class)]);
// loop through all endpoints to execute, test, and record the ping URI
foreach ($endpoints as $Endpoint) {
printf('Testing endpoint %s...', $Endpoint->getTitle());
// execute and capture request
// TODO: use curl_multi_exec somehow?
$response = HttpProxy::relayRequest(['autoAppend' => false, 'autoQuery' => false, 'url' => rtrim($Endpoint->InternalEndpoint, '/') . '/' . ltrim($Endpoint->PingURI, '/'), 'interface' => ApiRequestHandler::$sourceInterface, 'timeout' => 15, 'timeoutConnect' => 5, 'returnResponse' => true]);
// evaluate success
$testPassed = $response['info']['http_code'] == 200 && (!$Endpoint->PingTestPattern || preg_match($Endpoint->PingTestPattern, $response['body']));
// record transaction
list($path, $query) = explode('?', $Endpoint->PingURI);
$Transaction = PingTransaction::create(['Endpoint' => $Endpoint, 'ClientIP' => ip2long($response['info']['local_ip']), 'Method' => 'GET', 'Path' => $path, 'Query' => $query, 'ResponseTime' => $response['info']['starttransfer_time'] * 1000, 'ResponseCode' => $response['info']['http_code'], 'ResponseBytes' => $response['info']['size_download'], 'TestPassed' => $testPassed], true);
// open alert if necessary, or close any existing one
if (!$testPassed) {
TestFailed::open($Endpoint, ['transactionId' => $Transaction->ID, 'request' => ['uri' => $Endpoint->PingURI], 'response' => ['status' => $Transaction->ResponseCode, 'headers' => $response['headers'], 'body' => $response['body'], 'bytes' => $Transaction->ResponseBytes, 'time' => $Transaction->ResponseTime]]);
} else {
$OpenAlert = TestFailed::getByWhere(['Class' => TestFailed::class, 'EndpointID' => $Endpoint->ID, 'Status' => 'open']);
if ($OpenAlert) {
$OpenAlert->Status = 'closed';
$OpenAlert->save();
}
