From 865ecc87963dc3b26e66296616eef2a1cc41ac3f Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Wed, 25 Oct 2023 12:55:09 +0300
Subject: move to psr-4 autoloader

---
 classes/tracer.php | 216 -----------------------------------------------------
 1 file changed, 216 deletions(-)
 delete mode 100644 classes/tracer.php

(limited to 'classes/tracer.php')

diff --git a/classes/tracer.php b/classes/tracer.php
deleted file mode 100644
index 7163adb90..000000000
--- a/classes/tracer.php
+++ /dev/null
@@ -1,216 +0,0 @@
-<?php
-
-use OpenTelemetry\API\Trace\Propagation\TraceContextPropagator;
-use OpenTelemetry\API\Trace\SpanContextInterface;
-use OpenTelemetry\API\Trace\SpanInterface;
-use OpenTelemetry\API\Trace\SpanKind;
-use OpenTelemetry\API\Trace\TraceFlags;
-use OpenTelemetry\API\Trace\TraceStateInterface;
-use OpenTelemetry\Context\ContextInterface;
-use OpenTelemetry\Context\ContextKey;
-use OpenTelemetry\Context\ContextKeyInterface;
-use OpenTelemetry\Context\ImplicitContextKeyedInterface;
-use OpenTelemetry\Context\ScopeInterface;
-use OpenTelemetry\Contrib\Otlp\OtlpHttpTransportFactory;
-use OpenTelemetry\Contrib\Otlp\SpanExporter;
-use OpenTelemetry\SDK\Common\Attribute\Attributes;
-use OpenTelemetry\SDK\Resource\ResourceInfo;
-use OpenTelemetry\SDK\Resource\ResourceInfoFactory;
-use OpenTelemetry\SDK\Trace\Sampler\AlwaysOnSampler;
-use OpenTelemetry\SDK\Trace\Sampler\ParentBased;
-use OpenTelemetry\SDK\Trace\SpanProcessor\SimpleSpanProcessor;
-use OpenTelemetry\SDK\Trace\TracerProvider;
-use OpenTelemetry\SemConv\ResourceAttributes;
-
-class DummyContextInterface implements ContextInterface {
-
-	/** @var DummyContextInterface */
-	private static $instance;
-
-	public function __construct() {
-		self::$instance = $this;
-	}
-
-	/** @phpstan-ignore-next-line */
-	public static function createKey(string $key): ContextKeyInterface { return new ContextKey(); }
-
-	public static function getCurrent(): ContextInterface { return self::$instance; }
-
-	public function activate(): ScopeInterface { return new DummyScopeInterface(); }
-
-	public function with(ContextKeyInterface $key, $value): ContextInterface { return $this; }
-
-	public function withContextValue(ImplicitContextKeyedInterface $value): ContextInterface { return $this; }
-
-	public function get(ContextKeyInterface $key) { return new ContextKey(); }
-
-}
-
-class DummySpanContextInterface implements SpanContextInterface {
-
-	/** @var DummySpanContextInterface $instance */
-	private static $instance;
-
-	public function __construct() {
-		self::$instance = $this;
-	}
-
-	public static function createFromRemoteParent(string $traceId, string $spanId, int $traceFlags = TraceFlags::DEFAULT, ?TraceStateInterface $traceState = null): SpanContextInterface { return self::$instance; }
-
-	public static function getInvalid(): SpanContextInterface { return self::$instance; }
-
-	public static function create(string $traceId, string $spanId, int $traceFlags = TraceFlags::DEFAULT, ?TraceStateInterface $traceState = null): SpanContextInterface { return self::$instance; }
-
-	public function getTraceId(): string { return ""; }
-
-	public function getTraceIdBinary(): string { return ""; }
-
-	public function getSpanId(): string { return ""; }
-
-	public function getSpanIdBinary(): string { return ""; }
-
-	public function getTraceFlags(): int { return 0; }
-
-	public function getTraceState(): ?TraceStateInterface { return null; }
-
-	public function isValid(): bool { return false; }
-
-	public function isRemote(): bool { return false; }
-
-	public function isSampled(): bool { return false; }
-}
-
-class DummyScopeInterface implements ScopeInterface {
-	public function detach(): int { return 0; }
-}
-
-class DummySpanInterface implements SpanInterface {
-
-	/** @var DummySpanInterface $instance */
-	private static $instance;
-
-	public function __construct() {
-		self::$instance = $this;
-	}
-
-	public static function fromContext(ContextInterface $context): SpanInterface { return self::$instance; }
-
-	public static function getCurrent(): SpanInterface { return self::$instance; }
-
-	public static function getInvalid(): SpanInterface { return self::$instance; }
-
-	public static function wrap(SpanContextInterface $spanContext): SpanInterface { return self::$instance; }
-
-	public function getContext(): SpanContextInterface { return new DummySpanContextInterface(); }
-
-	public function isRecording(): bool { return false; }
-
-	/** @phpstan-ignore-next-line */
-	public function setAttribute(string $key, $value): SpanInterface { return self::$instance; }
-
-	/** @phpstan-ignore-next-line */
-	public function setAttributes(iterable $attributes): SpanInterface { return self::$instance; }
-
-	/** @phpstan-ignore-next-line */
-	public function addEvent(string $name, iterable $attributes = [], ?int $timestamp = null): SpanInterface { return $this; }
-
-	/** @phpstan-ignore-next-line */
-	public function recordException(Throwable $exception, iterable $attributes = []): SpanInterface { return $this; }
-
-	public function updateName(string $name): SpanInterface { return $this; }
-
-	public function setStatus(string $code, ?string $description = null): SpanInterface { return $this; }
-
-	public function end(?int $endEpochNanos = null): void { }
-
-	public function activate(): ScopeInterface { return new DummyScopeInterface(); }
-
-	public function storeInContext(ContextInterface $context): ContextInterface { return new DummyContextInterface(); }
-
-}
-
-class Tracer {
-	/** @var Tracer $instance */
-	private static $instance = null;
-
-	/** @var OpenTelemetry\SDK\Trace\TracerProviderInterface $tracerProvider */
-	private $tracerProvider = null;
-
-	/** @var OpenTelemetry\API\Trace\TracerInterface $tracer */
-	private $tracer = null;
-
-	public function __construct() {
-		$OPENTELEMETRY_ENDPOINT = Config::get(Config::OPENTELEMETRY_ENDPOINT);
-
-		if ($OPENTELEMETRY_ENDPOINT) {
-			$transport = (new OtlpHttpTransportFactory())->create($OPENTELEMETRY_ENDPOINT, 'application/x-protobuf');
-			$exporter = new SpanExporter($transport);
-
-			$resource = ResourceInfoFactory::emptyResource()->merge(
-				ResourceInfo::create(Attributes::create(
-					[ResourceAttributes::SERVICE_NAME => Config::get(Config::OPENTELEMETRY_SERVICE)]
-				), ResourceAttributes::SCHEMA_URL),
-			);
-
-			$this->tracerProvider = TracerProvider::builder()
-				->addSpanProcessor(new SimpleSpanProcessor($exporter))
-				->setResource($resource)
-				->setSampler(new ParentBased(new AlwaysOnSampler()))
-				->build();
-
-			$this->tracer = $this->tracerProvider->getTracer('io.opentelemetry.contrib.php');
-
-			$context = TraceContextPropagator::getInstance()->extract(getallheaders());
-
-			$span = $this->tracer->spanBuilder($_SESSION['name'] ?? 'not logged in')
-				->setParent($context)
-				->setSpanKind(SpanKind::KIND_SERVER)
-				->setAttribute('php.request', json_encode($_REQUEST))
-				->setAttribute('php.server', json_encode($_SERVER))
-				->setAttribute('php.session', json_encode($_SESSION ?? []))
-				->startSpan();
-
-			$scope = $span->activate();
-
-			register_shutdown_function(function() use ($span, $scope) {
-				$span->end();
-				$scope->detach();
-				$this->tracerProvider->shutdown();
-			});
-		}
-	}
-
-	/**
-	 * @param string $name
-	 * @return OpenTelemetry\API\Trace\SpanInterface
-	 */
-	private function _start(string $name) {
-		if ($this->tracer != null) {
-			$span = $this->tracer
-				->spanBuilder($name)
-				->setSpanKind(SpanKind::KIND_SERVER)
-				->startSpan();
-
-			$span->activate();
-		} else {
-			$span = new DummySpanInterface();
-		}
-
-		return $span;
-	}
-
-	/**
-	 * @param string $name
-	 * @return OpenTelemetry\API\Trace\SpanInterface
-	 */
-	public static function start(string $name) {
-		return self::get_instance()->_start($name);
-	}
-
-	public static function get_instance() : Tracer {
-		if (self::$instance == null)
-			self::$instance = new self();
-
-		return self::$instance;
-	}
-}
-- 
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