8000 bug #17744 Improve error reporting in router panel of web profiler (j… · symfony/symfony@9d58ad9 · GitHub
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bug #17744 Improve error reporting in router panel of web profiler (javiereguiluz)
This PR was squashed before being merged into the 2.7 branch (closes #17744). Discussion ---------- Improve error reporting in router panel of web profiler | Q | A | ------------- | --- | Bug fix? | yes | New feature? | no | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #17342 | License | MIT | Doc PR | - ### Problem If you define a route condition like this: ```yaml app: resource: '@AppBundle/Controller/' type: annotation condition: "request.server.get('HTTP_HOST') matches '/.*\.dev/'" ``` When browsing the Routing panel in the web profiler, you see an exception: ![problem](https://cloud.githubusercontent.com/assets/73419/12930027/553eeb08-cf76-11e5-90b1-ab0de6175d4e.png) #### Why? Because the route condition uses the `request` object, but the special `TraceableUrlMatcher` class doesn't get access to the real `request` object but to the special object obtained via: ```php $request = $profile->getCollector('request'); ``` These are the contents of this pseudo-request: ![cause](https://cloud.githubusercontent.com/assets/73419/12930052/804ea248-cf76-11e5-9c38-2e43e1654065.png) `request.server.get(...)` condition fails because `request.server` is `null`. The full exception message shows this: ![exception](https://cloud.githubusercontent.com/assets/73419/12930079/9c7d6058-cf76-11e5-8eeb-45f5059c824c.png) ### Solution I propose to catch all exceptions in `TraceableUrlMatcher` and display an error message with some details of the exception: ![error_message](https://cloud.githubusercontent.com/assets/73419/12930106/b29e31d2-cf76-11e5-868c-98d8b0cc4e5b.png) Commits ------- 1001554 Improve error reporting in router panel of web profiler
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‎src/Symfony/Bundle/WebProfilerBundle/Controller/RouterController.php

Lines changed: 29 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -18,6 +18,7 @@
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use Symfony\Component\Routing\RouterInterface;
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use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
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use Symfony\Component\HttpKernel\Profiler\Profiler;
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use Symfony\Component\HttpKernel\DataCollector\RequestDataCollector;
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/**
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* RouterController.
@@ -62,16 +63,39 @@ public function panelAction($token)
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$profile = $this->profiler->loadProfile($token);
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$context = $this->matcher->getContext();
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$context->setMethod($profile->getMethod());
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$matcher = new TraceableUrlMatcher($this->routes, $context);
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/** @var RequestDataCollector $request */
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$request = $profile->getCollector('request');
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return new Response($this->twig->render('@WebProfiler/Router/panel.html.twig', array(
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'request' => $request,
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'router' => $profile->getCollector('router'),
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'traces' => $matcher->getTraces($request->getPathInfo()),
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'traces' => $this->getTraces($request, $profile->getMethod()),
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)), 200, array('Content-Type' => 'text/html'));
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}
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/**
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* Returns the routing traces associated to the given request.
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*
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* @param RequestDataCollector $request
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* @param string $method
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*
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* @return array
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*/
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private function getTraces(RequestDataCollector $request, $method)
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{
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$traceRequest = Request::create(
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$request->getPathInfo(),
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$request->getRequestServer()->get('REQUEST_METHOD'),
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$request->getRequestAttributes()->all(),
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$request->getRequestCookies()->all(),
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array(),
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$request->getRequestServer()->all()
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);
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$context = $this->matcher->getContext();
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$context->setMethod($method);
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$matcher = new TraceableUrlMatcher($this->routes, $context);
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return $matcher->getTracesForRequest($traceRequest);
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}
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}

‎src/Symfony/Component/Routing/Matcher/TraceableUrlMatcher.php

Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -11,6 +11,7 @@
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namespace Symfony\Component\Routing\Matcher;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\Routing\Exception\ExceptionInterface;
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use Symfony\Component\Routing\Route;
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use Symfony\Component\Routing\RouteCollection;
@@ -40,6 +41,15 @@ public function getTraces($pathinfo)
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return $this->traces;
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}
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public function getTracesForRequest(Request $request)
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{
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$this->request = $request;
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$traces = $this->getTraces($request->getPathInfo());
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$this->request = null;
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return $traces;
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}
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protected function matchCollection($pathinfo, RouteCollection $routes)
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{
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foreach ($routes as $name => $route) {

‎src/Symfony/Component/Routing/Tests/Matcher/TraceableUrlMatcherTest.php

Lines changed: 20 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -11,6 +11,7 @@
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namespace Symfony\Component\Routing\Tests\Matcher;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\Routing\Route;
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use Symfony\Component\Routing\RouteCollection;
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use Symfony\Component\Routing\RequestContext;
@@ -98,4 +99,23 @@ public function getLevels($traces)
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return $levels;
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}
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public function testRoutesWithConditions()
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{
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$routes = new RouteCollection();
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$routes->add('foo', new Route('/foo', array(), array(), array(), 'baz', array(), array(), "request.headers.get('User-Agent') matches '/firefox/i'"));
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$context = new RequestContext();
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$context->setHost('baz');
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$matcher = new TraceableUrlMatcher($routes, $context);
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$notMatchingRequest = Request::create('/foo', 'GET');
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$traces = $matcher->getTracesForRequest($notMatchingRequest);
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$this->assertEquals("Condition \"request.headers.get('User-Agent') matches '/firefox/i'\" does not evaluate to \"true\"", $traces[0]['log']);
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$matchingRequest = Request::create('/foo', 'GET', array(), array(), array(), array('HTTP_USER_AGENT' => 'Firefox'));
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$traces = $matcher->getTracesForRequest($matchingRequest);
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$this->assertEquals('Route matches!', $traces[0]['log']);
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}
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}

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