From 07399fc00df214d1ad863e8a893495ace26ff7fa Mon Sep 17 00:00:00 2001
From: Roman Kelesidis <roman25052006.kelesh@gmail.com>
Date: Wed, 30 Jul 2025 10:14:00 +0300
Subject: [PATCH] feat: Add option to use original torrent filenames for
 downloads (#2064)

* feat: Add option to use original torrent filenames for downloads

* Update displaying_torrent.php
---
 library/attach_mod/displaying_torrent.php | 11 ++++++++---
 library/config.php                        |  3 ++-
 src/Legacy/Torrent.php                    | 11 ++++++++---
 3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/library/attach_mod/displaying_torrent.php b/library/attach_mod/displaying_torrent.php
index ce6bf669a..10dab59af 100644
--- a/library/attach_mod/displaying_torrent.php
+++ b/library/attach_mod/displaying_torrent.php
@@ -66,6 +66,7 @@ $tracker_status = $attachments['_' . $post_id][$i]['tracker_status'];
 $download_count = declension((int)$attachments['_' . $post_id][$i]['download_count'], 'times');
 $tor_file_size = humn_size($attachments['_' . $post_id][$i]['filesize']);
 $tor_file_time = bb_date($attachments['_' . $post_id][$i]['filetime']);
+$real_filename = clean_filename(basename($attachments['_' . $post_id][$i]['real_filename']));
 
 $tor_reged = (bool)$tracker_status;
 $show_peers = (bool)$bb_cfg['bt_show_peers'];
@@ -88,10 +89,14 @@ if ($tor_auth_reg || $tor_auth_del) {
     $tracker_link = ($tor_reged) ? $unreg_tor_url : $reg_tor_url;
 }
 
-if ($bb_cfg['tracker']['use_old_torrent_name_format']) {
-    $display_name = '[' . $bb_cfg['server_name'] . '].t' . $bt_topic_id . '.' . TORRENT_EXT;
+if ($bb_cfg['tracker']['use_real_filename']) {
+    $display_name = $real_filename;
 } else {
-    $display_name = $t_data['topic_title'] . ' [' . $bb_cfg['server_name'] . '-' . $bt_topic_id . ']' . '.' . TORRENT_EXT;
+    if ($bb_cfg['tracker']['use_old_torrent_name_format']) {
+        $display_name = '[' . $bb_cfg['server_name'] . '].t' . $bt_topic_id . '.' . TORRENT_EXT;
+    } else {
+        $display_name = $t_data['topic_title'] . ' [' . $bb_cfg['server_name'] . '-' . $bt_topic_id . ']' . '.' . TORRENT_EXT;
+    }
 }
 
 if (!$tor_reged) {
diff --git a/library/config.php b/library/config.php
index 407fa2e42..02e9bb804 100644
--- a/library/config.php
+++ b/library/config.php
@@ -747,7 +747,8 @@ $bb_cfg['tracker'] = [
     'hybrid_stat_protocol' => 1, // For hybrid torrents there are two identical requests sent by clients, for counting stats we gotta choose one, you can change this to '2' in future, when v1 protocol is outdated
     'disabled_v1_torrents' => false, // disallow registration of v1-only torrents, for future implementations where client will use v2 only and there won't be need for v1, thus relieving tracker
     'disabled_v2_torrents' => false, // disallow registration of v2-only torrents
-    'use_old_torrent_name_format' => false, // when enabled, the names of torrent files will have the classic format: [yoursite.com].txxx.torrent
+    'use_real_filename' => false, // Use original torrent filename for downloads. If disabled, filename will be generated automatically
+    'use_old_torrent_name_format' => false, // Use classic filename format '[yoursite.com].txxx.torrent'. Only works when use_real_filename is disabled
 ];
 
 // Ratio settings
diff --git a/src/Legacy/Torrent.php b/src/Legacy/Torrent.php
index 98fea29ef..e1c00bb0e 100644
--- a/src/Legacy/Torrent.php
+++ b/src/Legacy/Torrent.php
@@ -644,10 +644,15 @@ class Torrent
         // Send torrent
         $output = Bencode::encode($tor);
 
-        if ($bb_cfg['tracker']['use_old_torrent_name_format']) {
-            $dl_fname = '[' . $bb_cfg['server_name'] . '].t' . $topic_id . '.' . TORRENT_EXT;
+        $real_filename = clean_filename(basename($attachment['real_filename']));
+        if ($bb_cfg['tracker']['use_real_filename']) {
+            $dl_fname = $real_filename;
         } else {
-            $dl_fname = html_ent_decode($topic_title) . ' [' . $bb_cfg['server_name'] . '-' . $topic_id . ']' . '.' . TORRENT_EXT;
+            if ($bb_cfg['tracker']['use_old_torrent_name_format']) {
+                $dl_fname = '[' . $bb_cfg['server_name'] . '].t' . $topic_id . '.' . TORRENT_EXT;
+            } else {
+                $dl_fname = html_ent_decode($topic_title) . ' [' . $bb_cfg['server_name'] . '-' . $topic_id . ']' . '.' . TORRENT_EXT;
+            }
         }
 
         if (!empty($_COOKIE['explain'])) {