From 98fb915bfbaaa0c1029d536fdf569b848a3fbdd6 Mon Sep 17 00:00:00 2001
From: Tobias Schultze <webmaster@tubo-world.de>
Date: Mon, 6 Aug 2012 03:33:49 +0200
Subject: [PATCH] [Routing] allow disabling the requirements check on URL
 generation

---
 .../ConfigurableRequirementsInterface.php     | 19 +++++++++++++------
 .../Routing/Generator/UrlGenerator.php        |  4 ++--
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/src/Symfony/Component/Routing/Generator/ConfigurableRequirementsInterface.php b/src/Symfony/Component/Routing/Generator/ConfigurableRequirementsInterface.php
index 9a795d6aac33..89c86588eea9 100644
--- a/src/Symfony/Component/Routing/Generator/ConfigurableRequirementsInterface.php
+++ b/src/Symfony/Component/Routing/Generator/ConfigurableRequirementsInterface.php
@@ -12,25 +12,32 @@
 namespace Symfony\Component\Routing\Generator;
 
 /**
- * ConfigurableRequirementsInterface must be implemented by URL generators in order
- * to be able to configure whether an exception should be generated when the
- * parameters do not match the requirements.
+ * ConfigurableRequirementsInterface must be implemented by URL generators that
+ * can be configured whether an exception should be generated when the parameters
+ * do not match the requirements. It is also possible to disable the requirements
+ * check for URL generation completely to improve performance when you know that
+ * the parameters meet the requirements anyway (because they are from a trusted
+ * source or you validated them beforehand which should be the case in production
+ * environment as it would otherwise break your site).
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ * @author Tobias Schultze <http://tobion.de>
  */
 interface ConfigurableRequirementsInterface
 {
     /**
      * Enables or disables the exception on incorrect parameters.
+     * Passing null will deactivate the requirements check completely.
      *
-     * @param Boolean $enabled
+     * @param Boolean|null $enabled
      */
     public function setStrictRequirements($enabled);
 
     /**
-     * Gets the strict check of incorrect parameters.
+     * Returns whether to throw an exception on incorrect parameters.
+     * Null means the requirements check is deactivated completely.
      *
-     * @return Boolean
+     * @return Boolean|null
      */
     public function isStrictRequirements();
 }
diff --git a/src/Symfony/Component/Routing/Generator/UrlGenerator.php b/src/Symfony/Component/Routing/Generator/UrlGenerator.php
index 23ac3d790406..c1c1aefe8e7c 100644
--- a/src/Symfony/Component/Routing/Generator/UrlGenerator.php
+++ b/src/Symfony/Component/Routing/Generator/UrlGenerator.php
@@ -100,7 +100,7 @@ public function getContext()
      */
     public function setStrictRequirements($enabled)
     {
-        $this->strictRequirements = (Boolean) $enabled;
+        $this->strictRequirements = null === $enabled ? null : (Boolean) $enabled;
     }
 
     /**
@@ -146,7 +146,7 @@ protected function doGenerate($variables, $defaults, $requirements, $tokens, $pa
             if ('variable' === $token[0]) {
                 if (!$optional || !array_key_exists($token[3], $defaults) || (string) $mergedParams[$token[3]] !== (string) $defaults[$token[3]]) {
                     // check requirement
-                    if (!preg_match('#^'.$token[2].'$#', $mergedParams[$token[3]])) {
+                    if (null !== $this->strictRequirements && !preg_match('#^'.$token[2].'$#', $mergedParams[$token[3]])) {
                         $message = sprintf('Parameter "%s" for route "%s" must match "%s" ("%s" given).', $token[3], $name, $token[2], $mergedParams[$token[3]]);
                         if ($this->strictRequirements) {
                             throw new InvalidParameterException($message);