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<?php |
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declare(strict_types=1); |
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namespace Umbrellio\Jaravel\Middleware; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Facades\Config; |
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use OpenTelemetry\API\Trace\Propagation\TraceContextPropagator; |
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use OpenTelemetry\SDK\Trace\Span; |
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use Symfony\Component\HttpFoundation\Response; |
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use Umbrellio\Jaravel\Services\Caller; |
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use Umbrellio\Jaravel\Services\Http\TracingRequestGuard; |
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use Umbrellio\Jaravel\Services\Span\ActiveSpanTraceIdRetriever; |
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use Umbrellio\Jaravel\Services\Span\SpanCreator; |
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use Umbrellio\Jaravel\Services\Span\SpanTagHelper; |
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use Umbrellio\Jaravel\Services\TraceIdHeaderRetriever; |
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class HttpTracingMiddleware |
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{ |
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private SpanCreator $spanCreator; |
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private TracingRequestGuard $requestGuard; |
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private ActiveSpanTraceIdRetriever $activeTraceIdRetriever; |
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private TraceIdHeaderRetriever $traceIdHeaderRetriever; |
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public function __construct( |
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SpanCreator $spanCreator, |
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TracingRequestGuard $requestGuard, |
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ActiveSpanTraceIdRetriever $activeTraceIdRetriever, |
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TraceIdHeaderRetriever $traceIdHeaderRetriever |
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) { |
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$this->spanCreator = $spanCreator; |
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$this->requestGuard = $requestGuard; |
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$this->activeTraceIdRetriever = $activeTraceIdRetriever; |
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$this->traceIdHeaderRetriever = $traceIdHeaderRetriever; |
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} |
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/** @param Request $request */ |
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public function handle($request, callable $next) |
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{ |
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if (!$this->requestGuard->allowRequest($request)) { |
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return $next($request); |
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} |
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$headers = iterator_to_array($request->headers); |
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$traceIdHeader = $this->traceIdHeaderRetriever->retrieve($headers); |
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$traceStateHeader = $this->traceIdHeaderRetriever->retrieve($headers, TraceContextPropagator::TRACESTATE); |
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$this->spanCreator->create( |
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Caller::call(Config::get('jaravel.http.span_name'), [$request]), |
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$traceIdHeader, |
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$traceStateHeader |
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)->activate(); |
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/** @var Response $response */ |
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$response = $next($request); |
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return $response; |
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} |
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public function terminate($request, $response) |
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{ |
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$span = Span::getCurrent(); |
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$scope = $span->activate(); |
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$callableConfig = Config::get('jaravel.http.tags', fn () => [ |
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'type' => 'http', |
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]); |
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SpanTagHelper::setTags($span, Caller::call($callableConfig, [$request, $response])); |
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$span->end(); |
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$scope->detach(); |
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} |
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} |
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umbrellio /
jaravel
