add option to disable chat commands

src/Client.cc

@@ -391,6 +391,16 @@ bool Client::can_play_quest(shared_ptr<const Quest> q, uint8_t event, uint8_t di
   return ret;
 }
 
+bool Client::can_use_chat_commands() const {
+  if (!this->license) {
+    return false;
+  }
+  if (this->license->check_flag(License::Flag::ALWAYS_ENABLE_CHAT_COMMANDS)) {
+    return true;
+  }
+  return this->require_server_state()->enable_chat_commands;
+}
+
 void Client::dispatch_save_game_data(evutil_socket_t, short, void* ctx) {
   reinterpret_cast<Client*>(ctx)->save_game_data();
 }

src/Client.hh

@@ -293,6 +293,8 @@ public:
   bool can_see_quest(std::shared_ptr<const Quest> q, uint8_t event, uint8_t difficulty, size_t num_players) const;
   bool can_play_quest(std::shared_ptr<const Quest> q, uint8_t event, uint8_t difficulty, size_t num_players) const;
 
+  bool can_use_chat_commands() const;
+
   static void dispatch_save_game_data(evutil_socket_t, short, void* ctx);
   void save_game_data();
   static void dispatch_send_ping(evutil_socket_t, short, void* ctx);

src/License.hh

@@ -14,23 +14,23 @@ class License {
 public:
   enum class Flag : uint32_t {
     // clang-format off
-    KICK_USER                  = 0x00000001,
-    BAN_USER                   = 0x00000002,
-    SILENCE_USER               = 0x00000004,
-    CHANGE_EVENT               = 0x00000010,
-    ANNOUNCE                   = 0x00000020,
-    FREE_JOIN_GAMES            = 0x00000040,
-    DEBUG                      = 0x01000000,
-    CHEAT_ANYWHERE             = 0x02000000,
-    DISABLE_QUEST_REQUIREMENTS = 0x04000000,
-    MODERATOR                  = 0x00000007,
-    ADMINISTRATOR              = 0x000000FF,
-    ROOT                       = 0x7FFFFFFF,
-    IS_SHARED_SERIAL           = 0x80000000,
+    KICK_USER                   = 0x00000001,
+    BAN_USER                    = 0x00000002,
+    SILENCE_USER                = 0x00000004,
+    CHANGE_EVENT                = 0x00000010,
+    ANNOUNCE                    = 0x00000020,
+    FREE_JOIN_GAMES             = 0x00000040,
+    DEBUG                       = 0x01000000,
+    CHEAT_ANYWHERE              = 0x02000000,
+    DISABLE_QUEST_REQUIREMENTS  = 0x04000000,
+    ALWAYS_ENABLE_CHAT_COMMANDS = 0x08000000,
+    MODERATOR                   = 0x00000007,
+    ADMINISTRATOR               = 0x000000FF,
+    ROOT                        = 0x7FFFFFFF,
+    IS_SHARED_SERIAL            = 0x80000000,
     // NOTE: When adding or changing license flags, don't forget to change the
     // documentation in the shell's help text.
-
-    UNUSED_BITS                = 0x78FFFF00,
+    UNUSED_BITS                 = 0x70FFFF00,
     // clang-format on
   };
 

src/ReceiveCommands.cc

@@ -45,8 +45,10 @@ static shared_ptr<const Menu> proxy_options_menu_for_client(shared_ptr<const Cli
     add_bool_option(item_id, c->config.check_flag(flag), text, description);
   };
 
-  add_flag_option(ProxyOptionsMenuItemID::CHAT_COMMANDS, Client::Flag::PROXY_CHAT_COMMANDS_ENABLED,
-      "Chat commands", "Enable chat\ncommands");
+  if (c->can_use_chat_commands()) {
+    add_flag_option(ProxyOptionsMenuItemID::CHAT_COMMANDS, Client::Flag::PROXY_CHAT_COMMANDS_ENABLED,
+        "Chat commands", "Enable chat\ncommands");
+  }
   add_flag_option(ProxyOptionsMenuItemID::PLAYER_NOTIFICATIONS, Client::Flag::PROXY_PLAYER_NOTIFICATIONS_ENABLED,
       "Player notifs", "Show a message\nwhen other players\njoin or leave");
   static const char* item_drop_notifs_description = "Enable item drop\nnotifications:\n- No: no notifs\n- Rare: rares only\n- Item: all items\nbut not Meseta\n- Every: everything";
@@ -133,6 +135,9 @@ void send_client_to_proxy_server(shared_ptr<Client> c) {
 
   s->proxy_server->delete_session(c->license->serial_number);
   auto ses = s->proxy_server->create_licensed_session(c->license, local_port, c->version(), c->config);
+  if (!c->can_use_chat_commands()) {
+    ses->config.clear_flag(Client::Flag::PROXY_CHAT_COMMANDS_ENABLED);
+  }
   if (!s->proxy_allow_save_files) {
     ses->config.clear_flag(Client::Flag::PROXY_SAVE_FILES);
   }
@@ -2341,7 +2346,11 @@ static void on_10(shared_ptr<Client> c, uint16_t, uint32_t, string& data) {
           send_proxy_destinations_menu(c);
           break;
         case ProxyOptionsMenuItemID::CHAT_COMMANDS:
-          c->config.toggle_flag(Client::Flag::PROXY_CHAT_COMMANDS_ENABLED);
+          if (c->can_use_chat_commands()) {
+            c->config.toggle_flag(Client::Flag::PROXY_CHAT_COMMANDS_ENABLED);
+          } else {
+            c->config.clear_flag(Client::Flag::PROXY_CHAT_COMMANDS_ENABLED);
+          }
           goto resend_proxy_options_menu;
         case ProxyOptionsMenuItemID::PLAYER_NOTIFICATIONS:
           c->config.toggle_flag(Client::Flag::PROXY_PLAYER_NOTIFICATIONS_ENABLED);
@@ -3301,7 +3310,7 @@ static void on_06(shared_ptr<Client> c, uint16_t, uint32_t, string& data) {
   }
 
   char command_sentinel = (c->version() == Version::DC_V1_11_2000_PROTOTYPE) ? '@' : '$';
-  if (text[0] == command_sentinel) {
+  if ((text[0] == command_sentinel) && c->can_use_chat_commands()) {
     if (text[1] == command_sentinel) {
       text = text.substr(1);
     } else {

src/ServerShell.cc

@@ -297,6 +297,7 @@ CommandDefinition c_add_license(
       01000000 = Can use debugging commands\n\
       02000000 = Can use cheat commands even if cheat mode is disabled\n\
       04000000 = Can play any quest without progression/flags restrictions\n\
+      08000000 = Can use chat commands even if disabled in config.json\n\
       80000000 = License is a shared serial (disables Access Key and password\n\
         checks; players will get Guild Cards based on their player names)\n\
     There are also shorthands for some general privilege levels:\n\

src/ServerState.cc

@@ -886,6 +886,7 @@ void ServerState::load_config_early() {
 
   this->allow_dc_pc_games = this->config_json->get_bool("AllowDCPCGames", true);
   this->allow_gc_xb_games = this->config_json->get_bool("AllowGCXBGames", true);
+  this->enable_chat_commands = this->config_json->get_bool("EnableChatCommands", true);
 
   for (auto& order : this->public_lobby_search_orders) {
     order.clear();

src/ServerState.hh

@@ -90,6 +90,7 @@ struct ServerState : public std::enable_shared_from_this<ServerState> {
   bool use_temp_licenses_for_prototypes = true;
   bool allow_dc_pc_games = true;
   bool allow_gc_xb_games = true;
+  bool enable_chat_commands = true;
   uint8_t allowed_drop_modes_v1_v2_normal = 0x1F;
   uint8_t allowed_drop_modes_v1_v2_battle = 0x07;
   uint8_t allowed_drop_modes_v1_v2_challenge = 0x07;