[Web] Fix oauth2 redirect after user login

data/web/inc/triggers.user.inc.php

@@ -66,6 +66,14 @@ if (isset($_POST["verify_tfa_login"])) {
         die();
       } else {
         set_user_loggedin_session($_SESSION['pending_mailcow_cc_username']);
+
+        if (isset($_SESSION['oauth2_request'])) {
+          $oauth2_request = $_SESSION['oauth2_request'];
+          unset($_SESSION['oauth2_request']);
+          header('Location: ' . $oauth2_request);
+          die();
+        }
+
         $user_details = mailbox("get", "mailbox_details", $_SESSION['mailcow_cc_username']);
         $is_dual = (!empty($_SESSION["dual-login"]["username"])) ? true : false;
         if (intval($user_details['attributes']['sogo_access']) == 1 && !$is_dual) {
@@ -118,6 +126,12 @@ if (isset($_POST["login_user"]) && isset($_POST["pass_user"])) {
         header("Location: /mobileconfig.php");
         die();
     }
+    if (isset($_SESSION['oauth2_request'])) {
+      $oauth2_request = $_SESSION['oauth2_request'];
+      unset($_SESSION['oauth2_request']);
+      header('Location: ' . $oauth2_request);
+      die();
+    }
 
     $user_details = mailbox("get", "mailbox_details", $login_user);
     $is_dual = (!empty($_SESSION["dual-login"]["username"])) ? true : false;