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synced 2025-05-03 13:30:32 +00:00
95 lines
3 KiB
PHP
95 lines
3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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namespace OC\Profiler;
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use DateTime;
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use OCP\IConfig;
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use OCP\IRequest;
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class BuiltInProfiler {
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private \ExcimerProfiler $excimer;
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public function __construct(
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private IConfig $config,
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private IRequest $request,
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) {
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}
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public function start(): void {
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if (!extension_loaded('excimer')) {
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return;
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}
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$shouldProfileSingleRequest = $this->shouldProfileSingleRequest();
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$shouldSample = $this->config->getSystemValueBool('profiling.sample') && !$shouldProfileSingleRequest;
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if (!$shouldProfileSingleRequest && !$shouldSample) {
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return;
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}
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$requestRate = $this->config->getSystemValue('profiling.request.rate', 0.001);
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$sampleRate = $this->config->getSystemValue('profiling.sample.rate', 1.0);
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$eventType = $this->config->getSystemValue('profiling.event_type', EXCIMER_REAL);
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$this->excimer = new \ExcimerProfiler();
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$this->excimer->setPeriod($shouldProfileSingleRequest ? $requestRate : $sampleRate);
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$this->excimer->setEventType($eventType);
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$this->excimer->setMaxDepth(250);
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if ($shouldSample) {
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$this->excimer->setFlushCallback([$this, 'handleSampleFlush'], 1);
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}
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$this->excimer->start();
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register_shutdown_function([$this, 'handleShutdown']);
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}
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public function handleSampleFlush(\ExcimerLog $log): void {
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file_put_contents($this->getSampleFilename(), $log->formatCollapsed(), FILE_APPEND);
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}
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public function handleShutdown(): void {
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$this->excimer->stop();
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if (!$this->shouldProfileSingleRequest()) {
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$this->excimer->flush();
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return;
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}
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$request = \OCP\Server::get(IRequest::class);
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$data = $this->excimer->getLog()->getSpeedscopeData();
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$data['profiles'][0]['name'] = $request->getMethod() . ' ' . $request->getRequestUri() . ' ' . $request->getId();
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file_put_contents($this->getProfileFilename(), json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
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}
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private function shouldProfileSingleRequest(): bool {
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$shouldProfileSingleRequest = $this->config->getSystemValueBool('profiling.request', false);
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$profileSecret = $this->config->getSystemValueString('profiling.secret', '');
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$secretParam = $this->request->getParam('profile_secret') ?? null;
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return $shouldProfileSingleRequest || (!empty($profileSecret) && $profileSecret === $secretParam);
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}
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private function getSampleFilename(): string {
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$profilePath = $this->config->getSystemValueString('profiling.path', '/tmp');
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$sampleRotation = $this->config->getSystemValueInt('profiling.sample.rotation', 60);
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$timestamp = floor(time() / ($sampleRotation * 60)) * ($sampleRotation * 60);
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$sampleName = date('Y-m-d_Hi', (int)$timestamp);
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return $profilePath . '/sample-' . $sampleName . '.log';
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}
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private function getProfileFilename(): string {
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$profilePath = $this->config->getSystemValueString('profiling.path', '/tmp');
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$requestId = $this->request->getId();
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return $profilePath . '/profile-' . (new DateTime)->format('Y-m-d_His_v') . '-' . $requestId . '.json';
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}
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}
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