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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Sentry\Tracing; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Sentry\Tracing\SpanContext; |
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use Yiisoft\Middleware\Dispatcher\Event\AfterMiddleware; |
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use Yiisoft\Middleware\Dispatcher\Event\BeforeMiddleware; |
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use Yiisoft\Yii\Http\Event\ApplicationShutdown; |
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use Yiisoft\Yii\Sentry\Integration\Integration; |
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final class SentryTraceWebListener |
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{ |
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private ?float $prevTime = null; |
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private ?string $prevClass = null; |
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private ?bool $isFirstPopFromMiddlewareStack = true; |
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public function __construct(private SentryTraceMiddleware $traceMiddleware) |
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{ |
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} |
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/** |
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* @param array ...$params |
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*/ |
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public function listen(...$params): void |
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{ |
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/** @var false|object $event */ |
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$event = current($params); |
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if (!is_object($event)) { |
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return; |
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} |
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if ($event instanceof BeforeMiddleware) { |
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$middleware = $event->getMiddleware(); |
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$this->handleStart($middleware); |
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return; |
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} |
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if ($event instanceof AfterMiddleware) { |
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$middleware = $event->getMiddleware(); |
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$this->handleDone($middleware); |
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return; |
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} |
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if ($event instanceof ApplicationShutdown) { |
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$this->traceMiddleware->terminate(); |
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return; |
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} |
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} |
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private function handleStart(MiddlewareInterface $middleware): void |
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{ |
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$currentTime = microtime(true); |
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$currentClass = $middleware::class; |
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if (null === $this->prevTime || null === $this->prevClass) { |
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$this->prevTime = $currentTime; |
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$this->prevClass = $currentClass; |
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return; |
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} |
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$this->log('middleware in', $this->prevClass, $this->prevTime, $currentTime); |
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$this->prevTime = $currentTime; |
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$this->prevClass = $currentClass; |
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} |
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private function log( |
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string $op, |
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string $currentClass, |
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float $prevTime, |
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float $currentTime |
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): void { |
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$parentSpan = Integration::currentTracingSpan(); |
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// If there is no tracing span active there is no need to handle the event |
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if ($parentSpan === null) { |
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return; |
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} |
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$spanContext = new SpanContext(); |
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$spanContext->setOp($op); |
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$spanContext->setDescription($currentClass); |
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$spanContext->setStartTimestamp($prevTime); |
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$spanContext->setEndTimestamp($currentTime); |
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$parentSpan->startChild($spanContext); |
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} |
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private function handleDone(MiddlewareInterface $middleware): void |
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{ |
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$currentTime = microtime(true); |
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$currentClass = $middleware::class; |
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if (null === $this->prevTime) { |
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return; |
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} |
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if ($this->isFirstPopFromMiddlewareStack) { |
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$this->isFirstPopFromMiddlewareStack = false; |
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$this->log('action', $currentClass, $this->prevTime, $currentTime); |
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$this->prevTime = $currentTime; |
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return; |
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} |
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$this->log('middleware out', $currentClass, $this->prevTime, $currentTime); |
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$this->prevTime = $currentTime; |
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} |
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} |
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yiisoft /
yii-sentry
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