Refactor authentication system (#2602)

Make auth configuration available via UI, remove FOSUserBundle and SAML-Bundle dependency

src/Validator/Constraints/User.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Validator\Constraints;
+
+use Doctrine\Common\Annotations\Annotation\Target;
+use Symfony\Component\Validator\Constraint;
+
+/**
+ * @Annotation
+ * @Target({"CLASS", "PROPERTY", "METHOD", "ANNOTATION"})
+ */
+class User extends Constraint
+{
+    public const USER_EXISTING_EMAIL = 'kimai-user-00';
+    public const USER_EXISTING_NAME = 'kimai-user-01';
+
+    protected static $errorNames = [
+        self::USER_EXISTING_EMAIL => 'The email is already used.',
+        self::USER_EXISTING_NAME => 'The username is already used.',
+    ];
+
+    public $message = 'The user has invalid settings.';
+
+    public function getTargets()
+    {
+        return self::CLASS_CONSTRAINT;
+    }
+}

src/Validator/Constraints/UserValidator.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Validator\Constraints;
+
+use App\Entity\User as UserEntity;
+use App\User\UserService;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Context\ExecutionContextInterface;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+
+class UserValidator extends ConstraintValidator
+{
+    private $userService;
+
+    public function __construct(UserService $userService)
+    {
+        $this->userService = $userService;
+    }
+
+    /**
+     * @param UserEntity $value
+     * @param Constraint $constraint
+     */
+    public function validate($value, Constraint $constraint)
+    {
+        if (!($constraint instanceof User)) {
+            throw new UnexpectedTypeException($constraint, User::class);
+        }
+
+        if (!\is_object($value) || !($value instanceof UserEntity)) {
+            return;
+        }
+
+        $this->validateUser($value, $this->context);
+    }
+
+    protected function validateUser(UserEntity $user, ExecutionContextInterface $context)
+    {
+        if ($user->getEmail() !== null) {
+            $existingByEmail = $this->userService->findUserByEmail($user->getEmail());
+
+            if (null !== $existingByEmail && $user->getId() !== $existingByEmail->getId()) {
+                $context->buildViolation(User::getErrorName(User::USER_EXISTING_EMAIL))
+                    ->atPath('email')
+                    ->setTranslationDomain('validators')
+                    ->setCode(User::USER_EXISTING_EMAIL)
+                    ->addViolation();
+            }
+        }
+
+        if ($user->getUsername() !== null) {
+            $existingByName = $this->userService->findUserByName($user->getUsername());
+
+            if (null !== $existingByName && $user->getId() !== $existingByName->getId()) {
+                $context->buildViolation(User::getErrorName(User::USER_EXISTING_NAME))
+                    ->atPath('username')
+                    ->setTranslationDomain('validators')
+                    ->setCode(User::USER_EXISTING_NAME)
+                    ->addViolation();
+            }
+        }
+    }
+}