]> git.lizzy.rs Git - minetest.git/blobdiff - src/server.cpp
Clientiface: remove "value is dummy" from docs
[minetest.git] / src / server.cpp
index 09675dae3afa4807d5ef2027f5cd920fd02aea25..572533146555d9d923b17aed3e52297634978773 100644 (file)
@@ -148,7 +148,8 @@ Server::Server(
                const std::string &path_world,
                const SubgameSpec &gamespec,
                bool simple_singleplayer_mode,
-               bool ipv6
+               bool ipv6,
+               ChatInterface *iface
        ):
        m_path_world(path_world),
        m_gamespec(gamespec),
@@ -175,6 +176,7 @@ Server::Server(
        m_clients(&m_con),
        m_shutdown_requested(false),
        m_shutdown_ask_reconnect(false),
+       m_admin_chat(iface),
        m_ignore_map_edit_events(false),
        m_ignore_map_edit_events_peer_id(0),
        m_next_sound_id(0)
@@ -276,11 +278,8 @@ Server::Server(
        m_script = new GameScripting(this);
 
        std::string script_path = getBuiltinLuaPath() + DIR_DELIM "init.lua";
-       std::string error_msg;
 
-       if (!m_script->loadMod(script_path, BUILTIN_MOD_NAME, &error_msg))
-               throw ModError("Failed to load and run " + script_path
-                               + "\nError from Lua:\n" + error_msg);
+       m_script->loadMod(script_path, BUILTIN_MOD_NAME);
 
        // Print mods
        infostream << "Server: Loading mods: ";
@@ -291,26 +290,18 @@ Server::Server(
        }
        infostream << std::endl;
        // Load and run "mod" scripts
-       for (std::vector<ModSpec>::iterator i = m_mods.begin();
-                       i != m_mods.end(); ++i) {
-               const ModSpec &mod = *i;
+       for (std::vector<ModSpec>::iterator it = m_mods.begin();
+                       it != m_mods.end(); ++it) {
+               const ModSpec &mod = *it;
                if (!string_allowed(mod.name, MODNAME_ALLOWED_CHARS)) {
-                       std::ostringstream err;
-                       err << "Error loading mod \"" << mod.name
-                                       << "\": mod_name does not follow naming conventions: "
-                                       << "Only chararacters [a-z0-9_] are allowed." << std::endl;
-                       errorstream << err.str().c_str();
-                       throw ModError(err.str());
+                       throw ModError("Error loading mod \"" + mod.name +
+                               "\": Mod name does not follow naming conventions: "
+                               "Only chararacters [a-z0-9_] are allowed.");
                }
-               std::string script_path = mod.path + DIR_DELIM "init.lua";
+               std::string script_path = mod.path + DIR_DELIM "init.lua";
                infostream << "  [" << padStringRight(mod.name, 12) << "] [\""
                                << script_path << "\"]" << std::endl;
-               if (!m_script->loadMod(script_path, mod.name, &error_msg)) {
-                       errorstream << "Server: Failed to load and run "
-                                       << script_path << std::endl;
-                       throw ModError("Failed to load and run " + script_path
-                                       + "\nError from Lua:\n" + error_msg);
-               }
+               m_script->loadMod(script_path, mod.name);
        }
 
        // Read Textures and calculate sha1 sums
@@ -483,7 +474,7 @@ void Server::step(float dtime)
 {
        DSTACK(FUNCTION_NAME);
        // Limit a bit
-       if(dtime > 2.0)
+       if (dtime > 2.0)
                dtime = 2.0;
        {
                MutexAutoLock lock(m_step_dtime_mutex);
@@ -491,19 +482,13 @@ void Server::step(float dtime)
        }
        // Throw if fatal error occurred in thread
        std::string async_err = m_async_fatal_error.get();
-       if(async_err != "") {
-               if (m_simple_singleplayer_mode) {
-                       throw ServerError(async_err);
-               }
-               else {
+       if (!async_err.empty()) {
+               if (!m_simple_singleplayer_mode) {
                        m_env->kickAllPlayers(SERVER_ACCESSDENIED_CRASH,
                                g_settings->get("kick_msg_crash"),
                                g_settings->getBool("ask_reconnect_on_crash"));
-                       errorstream << "UNRECOVERABLE error occurred. Stopping server. "
-                                       << "Please fix the following error:" << std::endl
-                                       << async_err << std::endl;
-                       FATAL_ERROR(async_err.c_str());
                }
+               throw ServerError(async_err);
        }
 }
 
@@ -592,6 +577,22 @@ void Server::AsyncRunStep(bool initial_step)
                        U32_MAX);
        }
 
+       /*
+               Listen to the admin chat, if available
+       */
+       if (m_admin_chat) {
+               if (!m_admin_chat->command_queue.empty()) {
+                       MutexAutoLock lock(m_env_mutex);
+                       while (!m_admin_chat->command_queue.empty()) {
+                               ChatEvent *evt = m_admin_chat->command_queue.pop_frontNoEx();
+                               handleChatInterfaceEvent(evt);
+                               delete evt;
+                       }
+               }
+               m_admin_chat->outgoing_queue.push_back(
+                       new ChatEventTimeInfo(m_env->getGameTime(), m_env->getTimeOfDay()));
+       }
+
        /*
                Do background stuff
        */
@@ -1117,16 +1118,19 @@ PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
 
                // Send information about joining in chat
                {
-                       std::wstring name = L"unknown";
+                       std::string name = "unknown";
                        Player *player = m_env->getPlayer(peer_id);
                        if(player != NULL)
-                               name = narrow_to_wide(player->getName());
+                               name = player->getName();
 
                        std::wstring message;
                        message += L"*** ";
-                       message += name;
+                       message += narrow_to_wide(name);
                        message += L" joined the game.";
                        SendChatMessage(PEER_ID_INEXISTENT,message);
+                       if (m_admin_chat)
+                               m_admin_chat->outgoing_queue.push_back(
+                                       new ChatEventNick(CET_NICK_ADD, name));
                }
        }
        Address addr = getPeerAddress(player->peer_id);
@@ -1249,11 +1253,6 @@ void Server::setTimeOfDay(u32 time)
        m_time_of_day_send_timer = 0;
 }
 
-u32 Server::getTimeOfDay()
-{
-       return m_env->getTimeOfDay();
-}
-
 void Server::onMapEditEvent(MapEditEvent *event)
 {
        if(m_ignore_map_edit_events)
@@ -1454,6 +1453,16 @@ void Server::handlePeerChanges()
        }
 }
 
+void Server::printToConsoleOnly(const std::string &text)
+{
+       if (m_admin_chat) {
+               m_admin_chat->outgoing_queue.push_back(
+                       new ChatEventChat("", utf8_to_wide(text)));
+       } else {
+               std::cout << text << std::endl;
+       }
+}
+
 void Server::Send(NetworkPacket* pkt)
 {
        m_clients.send(pkt->getPeerId(),
@@ -2687,9 +2696,13 @@ void Server::DeleteClient(u16 peer_id, ClientDeletionReason reason)
                                        os << player->getName() << " ";
                                }
 
-                               actionstream << player->getName() << " "
+                               std::string name = player->getName();
+                               actionstream << name << " "
                                                << (reason == CDR_TIMEOUT ? "times out." : "leaves game.")
                                                << " List of players: " << os.str() << std::endl;
+                               if (m_admin_chat)
+                                       m_admin_chat->outgoing_queue.push_back(
+                                               new ChatEventNick(CET_NICK_REMOVE, name));
                        }
                }
                {
@@ -2722,6 +2735,102 @@ void Server::UpdateCrafting(Player* player)
        plist->changeItem(0, preview);
 }
 
+void Server::handleChatInterfaceEvent(ChatEvent *evt)
+{
+       if (evt->type == CET_NICK_ADD) {
+               // The terminal informed us of its nick choice
+               m_admin_nick = ((ChatEventNick *)evt)->nick;
+               if (!m_script->getAuth(m_admin_nick, NULL, NULL)) {
+                       errorstream << "You haven't set up an account." << std::endl
+                               << "Please log in using the client as '"
+                               << m_admin_nick << "' with a secure password." << std::endl
+                               << "Until then, you can't execute admin tasks via the console," << std::endl
+                               << "and everybody can claim the user account instead of you," << std::endl
+                               << "giving them full control over this server." << std::endl;
+               }
+       } else {
+               assert(evt->type == CET_CHAT);
+               handleAdminChat((ChatEventChat *)evt);
+       }
+}
+
+std::wstring Server::handleChat(const std::string &name, const std::wstring &wname,
+       const std::wstring &wmessage, bool check_shout_priv,
+       u16 peer_id_to_avoid_sending)
+{
+       // If something goes wrong, this player is to blame
+       RollbackScopeActor rollback_scope(m_rollback,
+               std::string("player:") + name);
+
+       // Line to send
+       std::wstring line;
+       // Whether to send line to the player that sent the message, or to all players
+       bool broadcast_line = true;
+
+       // Run script hook
+       bool ate = m_script->on_chat_message(name,
+               wide_to_utf8(wmessage));
+       // If script ate the message, don't proceed
+       if (ate)
+               return L"";
+
+       // Commands are implemented in Lua, so only catch invalid
+       // commands that were not "eaten" and send an error back
+       if (wmessage[0] == L'/') {
+               std::wstring wcmd = wmessage.substr(1);
+               broadcast_line = false;
+               if (wcmd.length() == 0)
+                       line += L"-!- Empty command";
+               else
+                       line += L"-!- Invalid command: " + str_split(wcmd, L' ')[0];
+       } else {
+               if (check_shout_priv && !checkPriv(name, "shout")) {
+                       line += L"-!- You don't have permission to shout.";
+                       broadcast_line = false;
+               } else {
+                       line += L"<";
+                       line += wname;
+                       line += L"> ";
+                       line += wmessage;
+               }
+       }
+
+       /*
+               Tell calling method to send the message to sender
+       */
+       if (!broadcast_line) {
+               return line;
+       } else {
+               /*
+                       Send the message to others
+               */
+               actionstream << "CHAT: " << wide_to_narrow(line) << std::endl;
+
+               std::vector<u16> clients = m_clients.getClientIDs();
+
+               for (u16 i = 0; i < clients.size(); i++) {
+                       u16 cid = clients[i];
+                       if (cid != peer_id_to_avoid_sending)
+                               SendChatMessage(cid, line);
+               }
+       }
+       return L"";
+}
+
+void Server::handleAdminChat(const ChatEventChat *evt)
+{
+       std::string name = evt->nick;
+       std::wstring wname = utf8_to_wide(name);
+       std::wstring wmessage = evt->evt_msg;
+
+       std::wstring answer = handleChat(name, wname, wmessage);
+
+       // If asked to send answer to sender
+       if (!answer.empty()) {
+               m_admin_chat->outgoing_queue.push_back(new ChatEventChat("", answer));
+       }
+}
+
 RemoteClient* Server::getClient(u16 peer_id, ClientState state_min)
 {
        RemoteClient *client = getClientNoEx(peer_id,state_min);
@@ -2853,9 +2962,14 @@ void Server::notifyPlayer(const char *name, const std::wstring &msg)
        if (!m_env)
                return;
 
+       if (m_admin_nick == name && !m_admin_nick.empty()) {
+               m_admin_chat->outgoing_queue.push_back(new ChatEventChat("", msg));
+       }
+
        Player *player = m_env->getPlayer(name);
-       if (!player)
+       if (!player) {
                return;
+       }
 
        if (player->peer_id == PEER_ID_INEXISTENT)
                return;
@@ -2920,7 +3034,8 @@ bool Server::hudSetFlags(Player *player, u32 flags, u32 mask)
                return false;
 
        SendHUDSetFlags(player->peer_id, flags, mask);
-       player->hud_flags = flags;
+       player->hud_flags &= ~mask;
+       player->hud_flags |= flags;
 
        PlayerSAO* playersao = player->getPlayerSAO();
 
@@ -3268,26 +3383,24 @@ v3f Server::findSpawnPos()
                return nodeposf * BS;
        }
 
-       s16 water_level = map.getWaterLevel();
-       s16 vertical_spawn_range = g_settings->getS16("vertical_spawn_range");
        bool is_good = false;
 
        // Try to find a good place a few times
-       for(s32 i = 0; i < 1000 && !is_good; i++) {
+       for(s32 i = 0; i < 4000 && !is_good; i++) {
                s32 range = 1 + i;
                // We're going to try to throw the player to this position
                v2s16 nodepos2d = v2s16(
                                -range + (myrand() % (range * 2)),
                                -range + (myrand() % (range * 2)));
 
-               // Get ground height at point
-               s16 groundheight = map.findGroundLevel(nodepos2d);
-               // Don't go underwater or to high places
-               if (groundheight <= water_level ||
-                               groundheight > water_level + vertical_spawn_range)
+               // Get spawn level at point
+               s16 spawn_level = m_emerge->getSpawnLevelAtPoint(nodepos2d);
+               // Continue if MAX_MAP_GENERATION_LIMIT was returned by
+               // the mapgen to signify an unsuitable spawn position
+               if (spawn_level == MAX_MAP_GENERATION_LIMIT)
                        continue;
 
-               v3s16 nodepos(nodepos2d.X, groundheight, nodepos2d.Y);
+               v3s16 nodepos(nodepos2d.X, spawn_level, nodepos2d.Y);
 
                s32 air_count = 0;
                for (s32 i = 0; i < 10; i++) {