1 files changed, 68 insertions, 0 deletions

diff --git a/plugins/UsersManager/Validators/Login.php b/plugins/UsersManager/Validators/Login.php
new file mode 100644
index 0000000000..7e3e19cda5
--- /dev/null
+++ b/plugins/UsersManager/Validators/Login.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Matomo - free/libre analytics platform
+ *
+ * @link https://matomo.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+
+namespace Piwik\Plugins\UsersManager\Validators;
+
+use Piwik\Piwik;
+use Piwik\SettingsPiwik;
+use Piwik\Plugins\UsersManager\API as APIUsersManager;
+use Piwik\Validators\BaseValidator;
+use Piwik\Validators\Exception;
+
+
+class Login extends BaseValidator
+{
+    const loginMinimumLength = 2;
+    const loginMaximumLength = 100;
+
+    private $checkUnique;
+
+    public function __construct($checkUnique = false)
+    {
+        $this->checkUnique = $checkUnique;
+    }
+
+    public function validate($value)
+    {
+        if (!SettingsPiwik::isUserCredentialsSanityCheckEnabled()
+          && !empty($value)
+        ) {
+            return;
+        }
+
+        $l = strlen($value);
+        if (!($l >= self::loginMinimumLength
+          && $l <= self::loginMaximumLength
+          && (preg_match('/^[A-Za-zÄäÖöÜüß0-9_.@+-]*$/D', $value) > 0))
+        ) {
+            throw new Exception(Piwik::translate('UsersManager_ExceptionInvalidLoginFormat',
+              array(self::loginMinimumLength, self::loginMaximumLength)));
+        }
+
+        if ($this->checkUnique) {
+            $this->isUnique($value);
+        }
+    }
+
+    /**
+     * check if login already exist in database
+     * @param $login
+     * @throws \Exception
+     */
+    private function isUnique($login)
+    {
+        if (APIUsersManager::getInstance()->userExists($login)) {
+            throw new Exception(Piwik::translate('UsersManager_ExceptionLoginExists', $login));
+        }
+
+        if (APIUsersManager::getInstance()->userEmailExists($login)) {
+            throw new Exception(Piwik::translate('UsersManager_ExceptionLoginExistsAsEmail', $login));
+        }
+    }
+}
\ No newline at end of file