Support logging the impersonator user, if any

CHANGELOG.md

@@ -3,9 +3,11 @@
 ## Unreleased
 
 - Add support for tracing of the Symfony HTTP client requests (#606)
+- Support logging the impersonator user, if any (#647)
 
 ## 4.3.0 (2022-05-30)
-- Fix compatibility issue with Symfony >= 6.1.0 (#635)
+
+- Fix compatibility issue with Symfony `>= 6.1.0` (#635)
 - Add `TracingDriverConnectionInterface::getNativeConnection()` method to get the original driver connection (#597)
 - Add `options.http_timeout` and `options.http_connect_timeout` configuration options (#593)
 

phpstan-baseline.neon

@@ -160,16 +160,6 @@ parameters:
 			count: 1
 			path: src/EventListener/RequestListener.php
 
-		-
-			message: "#^Cannot call method getUser\\(\\) on Symfony\\\\Component\\\\Security\\\\Core\\\\Authentication\\\\Token\\\\TokenInterface\\|null\\.$#"
-			count: 1
-			path: src/EventListener/RequestListener.php
-
-		-
-			message: "#^Parameter \\#1 \\$user of method Sentry\\\\SentryBundle\\\\EventListener\\\\RequestListener\\:\\:getUsername\\(\\) expects object\\|string, Symfony\\\\Component\\\\Security\\\\Core\\\\User\\\\UserInterface\\|null given\\.$#"
-			count: 1
-			path: src/EventListener/RequestListener.php
-
 		-
 			message: "#^Call to an undefined method Symfony\\\\Component\\\\HttpKernel\\\\Event\\\\KernelEvent\\:\\:isMasterRequest\\(\\)\\.$#"
 			count: 1
@@ -315,6 +305,21 @@ parameters:
 			count: 1
 			path: tests/EventListener/RequestListenerTest.php
 
+		-
+			message: "#^Parameter \\#3 \\$roles of class Symfony\\\\Component\\\\Security\\\\Core\\\\Authentication\\\\Token\\\\SwitchUserToken constructor expects array\\<string\\>, string given\\.$#"
+			count: 1
+			path: tests/EventListener/RequestListenerTest.php
+
+		-
+			message: "#^Parameter \\#4 \\$originalToken of class Symfony\\\\Component\\\\Security\\\\Core\\\\Authentication\\\\Token\\\\SwitchUserToken constructor expects Symfony\\\\Component\\\\Security\\\\Core\\\\Authentication\\\\Token\\\\TokenInterface, array\\<int, string\\> given\\.$#"
+			count: 1
+			path: tests/EventListener/RequestListenerTest.php
+
+		-
+			message: "#^Parameter \\#5 \\$originatedFromUri of class Symfony\\\\Component\\\\Security\\\\Core\\\\Authentication\\\\Token\\\\SwitchUserToken constructor expects string\\|null, Sentry\\\\SentryBundle\\\\Tests\\\\EventListener\\\\AuthenticatedTokenStub given\\.$#"
+			count: 1
+			path: tests/EventListener/RequestListenerTest.php
+
 		-
 			message: "#^Call to an undefined method Symfony\\\\Component\\\\HttpKernel\\\\Event\\\\KernelEvent\\:\\:isMasterRequest\\(\\)\\.$#"
 			count: 1

src/EventListener/RequestListener.php

@@ -10,6 +10,7 @@
 use Symfony\Component\HttpKernel\Event\ControllerEvent;
 use Symfony\Component\HttpKernel\Event\RequestEvent;
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
+use Symfony\Component\Security\Core\Authentication\Token\SwitchUserToken;
 use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
 use Symfony\Component\Security\Core\User\UserInterface;
 
@@ -62,16 +63,11 @@ public function handleKernelRequestEvent(RequestEvent $event): void
             return;
         }
 
-        $token = null;
         $userData = new UserDataBag();
         $userData->setIpAddress($event->getRequest()->getClientIp());
 
         if (null !== $this->tokenStorage) {
-            $token = $this->tokenStorage->getToken();
-        }
-
-        if ($this->isTokenAuthenticated($token)) {
-            $userData->setUsername($this->getUsername($token->getUser()));
+            $this->setUserData($userData, $this->tokenStorage->getToken());
         }
 
         $this->hub->configureScope(static function (Scope $scope) use ($userData): void {
@@ -103,7 +99,7 @@ public function handleKernelControllerEvent(ControllerEvent $event): void
     }
 
     /**
-     * @param UserInterface|object|string $user
+     * @param UserInterface|object|string|null $user
      */
     private function getUsername($user): ?string
     {
@@ -128,12 +124,32 @@ private function getUsername($user): ?string
         return null;
     }
 
-    private function isTokenAuthenticated(?TokenInterface $token): bool
+    private function getImpersonatorUser(TokenInterface $token): ?string
     {
-        if (null === $token) {
-            return false;
+        if (!$token instanceof SwitchUserToken) {
+            return null;
         }
 
+        return $this->getUsername($token->getOriginalToken()->getUser());
+    }
+
+    private function setUserData(UserDataBag $userData, ?TokenInterface $token): void
+    {
+        if (null === $token || !$this->isTokenAuthenticated($token)) {
+            return;
+        }
+
+        $userData->setUsername($this->getUsername($token->getUser()));
+
+        $impersonatorUser = $this->getImpersonatorUser($token);
+
+        if (null !== $impersonatorUser) {
+            $userData->setMetadata('impersonator_username', $impersonatorUser);
+        }
+    }
+
+    private function isTokenAuthenticated(TokenInterface $token): bool
+    {
         if (method_exists($token, 'isAuthenticated') && !$token->isAuthenticated(false)) {
             return false;
         }

tests/EventListener/Fixtures/UserWithIdentifierStub.php

@@ -8,14 +8,24 @@
 
 final class UserWithIdentifierStub implements UserInterface
 {
+    /**
+     * @var string
+     */
+    private $username;
+
+    public function __construct(string $username = 'foo_user')
+    {
+        $this->username = $username;
+    }
+
     public function getUserIdentifier(): string
     {
         return $this->getUsername();
     }
 
     public function getUsername(): string
     {
-        return 'foo_user';
+        return $this->username;
     }
 
     public function getRoles(): array