exception: add attributes to email not found

Ref: #126

src/core/Directus/Authentication/Exception/UserWithEmailNotFoundException.php

@@ -10,6 +10,7 @@ class UserWithEmailNotFoundException extends NotFoundException
 
     public function __construct($email)
     {
+        $this->attributes['email'] = $email;
         $message = sprintf('User with email "%s" not found', $email);
 
         parent::__construct($message, static::ERROR_CODE);

src/core/Directus/Exception/Exception.php

@@ -6,6 +6,8 @@ class Exception extends \Exception
 {
     const ERROR_CODE = 0;
 
+    protected $attributes = [];
+
     /**
      * Allows child class to extend the error code value method
      *
@@ -15,4 +17,14 @@ public function getErrorCode()
     {
         return static::ERROR_CODE;
     }
+
+    /**
+     * Gets the error attributes
+     *
+     * @return array
+     */
+    public function getAttributes()
+    {
+        return $this->attributes;
+    }
 }

src/endpoints/Auth.php

@@ -6,6 +6,7 @@
 use Directus\Application\Http\Request;
 use Directus\Application\Http\Response;
 use Directus\Application\Route;
+use Directus\Authentication\Exception\UserWithEmailNotFoundException;
 use Directus\Authentication\Sso\Social;
 use Directus\Services\AuthService;
 use Directus\Session\Session;
@@ -220,7 +221,12 @@ public function ssoServiceCallback(Request $request, Response $response)
                 throw $e;
             }
 
-            $urlParams['error'] = $e->getMessage();
+            if ($e instanceof UserWithEmailNotFoundException) {
+                $urlParams['attributes'] = $e->getAttributes();
+            }
+
+            $urlParams['errorCode'] = $e->getErrorCode();
+            $urlParams['error'] = true;
         }
 
         if ($redirectUrl) {