[Security] use current request attributes to generate redirect url?

src/Symfony/Component/Security/Http/HttpUtils.php

@@ -136,15 +136,25 @@ class HttpUtils
             return $request->getUriForPath($path);
         }
 
-        return $this->generateUrl($path, true);
+        return $this->generateUrl($path, $request->attributes->all(), true);
     }
 
-    private function generateUrl($route, $absolute = false)
+    private function generateUrl($route, array $attributes = array(), $absolute = false)
     {
         if (null === $this->urlGenerator) {
             throw new \LogicException('You must provide a UrlGeneratorInterface instance to be able to use routes.');
         }
 
-        return $this->urlGenerator->generate($route, array(), $absolute);
+        $url = $this->urlGenerator->generate($route, $attributes, $absolute);
+
+        // unnecessary query string parameters must be removed from url
+        // (ie. query parameters that are presents in $attributes)
+        // fortunately, they all are, so we have to remove entire query string
+        $position = strpos($url, '?');
+        if (false !== $position) {
+            $url = substr($url, 0, $position);
+        }
+
+        return $url;
     }
 }

src/Symfony/Component/Security/Tests/Http/HttpUtilsTest.php

@@ -137,13 +137,25 @@ class HttpUtilsTest extends \PHPUnit_Framework_TestCase
         $utils->checkRequestPath($this->getRequest(), 'foobar');
     }
 
-    private function getUrlGenerator()
+    public function testGenerateUrlRemovesQueryString()
+    {
+        $method = new \ReflectionMethod('Symfony\Component\Security\Http\HttpUtils', 'generateUrl');
+        $method->setAccessible(true);
+
+        $utils = new HttpUtils($this->getUrlGenerator());
+        $this->assertEquals('/foo/bar', $method->invoke($utils, 'route_name'));
+
+        $utils = new HttpUtils($this->getUrlGenerator('/foo/bar?param=value'));
+        $this->assertEquals('/foo/bar', $method->invoke($utils, 'route_name'));
+    }
+
+    private function getUrlGenerator($generatedUrl = '/foo/bar')
     {
         $urlGenerator = $this->getMock('Symfony\Component\Routing\Generator\UrlGeneratorInterface');
         $urlGenerator
             ->expects($this->any())
             ->method('generate')
-            ->will($this->returnValue('/foo/bar'))
+            ->will($this->returnValue($generatedUrl))
         ;
 
         return $urlGenerator;