Add email with IMAP backend

Author: Sebastian L.

lib/Base.php

@@ -173,7 +173,7 @@ public function setDisplayName($uid, $displayName) {
 	 *
 	 * @return void
 	 */
-	protected function storeUser($uid, $groups = []) {
+	protected function storeUser($uid, $groups = [], $email = '') {
 		if (!$this->userExists($uid)) {
 			$query = \OC::$server->getDatabaseConnection()->getQueryBuilder();
 			$query->insert('users_external')
@@ -189,6 +189,11 @@ protected function storeUser($uid, $groups = []) {
 					\OC::$server->getGroupManager()->createGroup($group)->addUser($createduser);
 				}
 			}
+			
+			if ($email) {
+				$config = \OC::$server->getConfig();
+				$config->setUserValue( $uid, 'settings', 'email', $email);
+			}
 		}
 	}
 

lib/IMAP.php

@@ -61,6 +61,9 @@ public function checkPassword($uid, $password) {
 			$uid = str_replace("%40", "@", $uid);
 		}
 
+		// Get email if uid contains @ symbol
+		if ( str_contains( $uid, '@' ) ) $email = $uid;
+		
 		$pieces = explode('@', $uid);
 		if ($this->domain !== '') {
 			if (count($pieces) === 1) {
@@ -104,7 +107,7 @@ public function checkPassword($uid, $password) {
 		if ($errorcode === 0) {
 			curl_close($ch);
 			$uid = mb_strtolower($uid);
-			$this->storeUser($uid, $groups);
+			$this->storeUser($uid, $groups, mb_strtolower($email));
 			return $uid;
 		} elseif ($errorcode === CURLE_COULDNT_CONNECT ||
 			   $errorcode === CURLE_SSL_CONNECT_ERROR ||