From e9d62f10a660338a3887162839997c79d719920f Mon Sep 17 00:00:00 2001
From: Roman Kelesidis <roman25052006.kelesh@gmail.com>
Date: Fri, 9 Aug 2024 15:17:56 +0700
Subject: [PATCH] Demo mode: Save user language in cookies (#1584)

* Updated

* Update User.php

* Update User.php

* Update register.php

* Update CHANGELOG.md
---
 CHANGELOG.md                      | 1 +
 library/includes/ucp/register.php | 9 ++++++++-
 src/Legacy/Common/User.php        | 5 ++++-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a49462bf..8cf90cad3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 - [CLI] TorrentPier installer ☕️ [\#1576](https://github.com/torrentpier/torrentpier/pull/1576), [\#1582](https://github.com/torrentpier/torrentpier/pull/1582) ([belomaxorka](https://github.com/belomaxorka))
 - Added some new HTML meta-tags [\#1562](https://github.com/torrentpier/torrentpier/pull/1562) ([belomaxorka](https://github.com/belomaxorka))
 - Added showing releaser stats in profile [\#1568](https://github.com/torrentpier/torrentpier/pull/1568) ([belomaxorka](https://github.com/belomaxorka))
+- Demo mode: Save user language in cookies [\#1584](https://github.com/torrentpier/torrentpier/pull/1584) ([belomaxorka](https://github.com/belomaxorka))
 - Fixed `md5()` deprecated in PHP 8.4 [\#1561](https://github.com/torrentpier/torrentpier/pull/1561) ([belomaxorka](https://github.com/belomaxorka))
 - Increased `USEREMAIL_MAX_LENGTH` [\#1566](https://github.com/torrentpier/torrentpier/pull/1566) ([belomaxorka](https://github.com/belomaxorka))
 - Minor improvements [\#1570](https://github.com/torrentpier/torrentpier/pull/1570), [\#1571](https://github.com/torrentpier/torrentpier/pull/1571), [\#1575](https://github.com/torrentpier/torrentpier/pull/1575) ([belomaxorka](https://github.com/belomaxorka))
diff --git a/library/includes/ucp/register.php b/library/includes/ucp/register.php
index 5acd7eeed..79294f627 100644
--- a/library/includes/ucp/register.php
+++ b/library/includes/ucp/register.php
@@ -142,6 +142,9 @@ switch ($mode) {
         if (!$pr_data = DB()->fetch_row($sql)) {
             bb_die($lang['PROFILE_NOT_FOUND']);
         }
+        if (IN_DEMO_MODE && isset($_COOKIE['user_lang'])) {
+            $pr_data['user_lang'] = $_COOKIE['user_lang'];
+        }
         break;
 
     default:
@@ -286,7 +289,11 @@ foreach ($profile_fields as $field => $can_edit) {
             $user_lang = isset($_POST['user_lang']) ? (string)$_POST['user_lang'] : $pr_data['user_lang'];
             if ($submit && ($user_lang != $pr_data['user_lang'] || $mode == 'register')) {
                 $pr_data['user_lang'] = $user_lang;
-                $db_data['user_lang'] = $user_lang;
+                if (IN_DEMO_MODE) {
+                    bb_setcookie('user_lang', $user_lang);
+                } else {
+                    $db_data['user_lang'] = $user_lang;
+                }
             }
             break;
 
diff --git a/src/Legacy/Common/User.php b/src/Legacy/Common/User.php
index 0b4ebe7e8..33efa5cb2 100644
--- a/src/Legacy/Common/User.php
+++ b/src/Legacy/Common/User.php
@@ -472,7 +472,7 @@ class User
     public function set_session_cookies($user_id)
     {
         if ($user_id == GUEST_UID) {
-            $delete_cookies = [COOKIE_DATA, 'torhelp'];
+            $delete_cookies = [COOKIE_DATA, 'torhelp', 'user_lang'];
 
             foreach ($delete_cookies as $cookie) {
                 if (isset($_COOKIE[$cookie])) {
@@ -579,6 +579,9 @@ class User
         define('SOURCE_LANG_DIR', LANG_ROOT_DIR . '/source/');
 
         if ($this->data['user_id'] != GUEST_UID) {
+            if (IN_DEMO_MODE && isset($_COOKIE['user_lang'])) {
+                $this->data['user_lang'] = $_COOKIE['user_lang'];
+            }
             if ($this->data['user_lang'] && $this->data['user_lang'] != $bb_cfg['default_lang']) {
                 $bb_cfg['default_lang'] = basename($this->data['user_lang']);
                 define('LANG_DIR', LANG_ROOT_DIR . '/' . $bb_cfg['default_lang'] . '/');