]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/server.cpp
Add core.request_insecure_environment()
[dragonfireclient.git] / src / server.cpp
index 6a1e8085b530b5c8f343239d511a30540085d5fe..778a932417f285b24edf3b80fe927068d1abba1e 100644 (file)
@@ -27,7 +27,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "environment.h"
 #include "map.h"
 #include "jthread/jmutexautolock.h"
-#include "main.h"
 #include "constants.h"
 #include "voxel.h"
 #include "config.h"
@@ -222,12 +221,9 @@ Server::Server(
        infostream<<"- world:  "<<m_path_world<<std::endl;
        infostream<<"- game:   "<<m_gamespec.path<<std::endl;
 
-       // Initialize default settings and override defaults with those provided
-       // by the game
-       set_default_settings(g_settings);
-       Settings gamedefaults;
-       getGameMinetestConfig(gamespec.path, gamedefaults);
-       override_default_settings(g_settings, &gamedefaults);
+       // Create world if it doesn't exist
+       if(!loadGameConfAndInitWorld(m_path_world, m_gamespec))
+               throw ServerError("Failed to initialize world");
 
        // Create server thread
        m_thread = new ServerThread(this);
@@ -235,10 +231,6 @@ Server::Server(
        // Create emerge manager
        m_emerge = new EmergeManager(this);
 
-       // Create world if it doesn't exist
-       if(!initializeWorld(m_path_world, m_gamespec.id))
-               throw ServerError("Failed to initialize world");
-
        // Create ban manager
        std::string ban_path = m_path_world + DIR_DELIM "ipban.txt";
        m_banmanager = new BanManager(ban_path);
@@ -303,31 +295,37 @@ Server::Server(
 
        m_script = new GameScripting(this);
 
-       std::string scriptpath = getBuiltinLuaPath() + DIR_DELIM "init.lua";
+       std::string script_path = getBuiltinLuaPath() + DIR_DELIM "init.lua";
 
-       if (!m_script->loadScript(scriptpath))
-               throw ModError("Failed to load and run " + scriptpath);
+       if (!m_script->loadMod(script_path, BUILTIN_MOD_NAME)) {
+               throw ModError("Failed to load and run " + script_path);
+       }
 
-       // Print 'em
-       infostream<<"Server: Loading mods: ";
+       // Print mods
+       infostream << "Server: Loading mods: ";
        for(std::vector<ModSpec>::iterator i = m_mods.begin();
                        i != m_mods.end(); i++){
                const ModSpec &mod = *i;
-               infostream<<mod.name<<" ";
+               infostream << mod.name << " ";
        }
-       infostream<<std::endl;
+       infostream << std::endl;
        // Load and run "mod" scripts
-       for(std::vector<ModSpec>::iterator i = m_mods.begin();
-                       i != m_mods.end(); i++){
+       for (std::vector<ModSpec>::iterator i = m_mods.begin();
+                       i != m_mods.end(); i++) {
                const ModSpec &mod = *i;
-               std::string scriptpath = mod.path + DIR_DELIM + "init.lua";
-               infostream<<"  ["<<padStringRight(mod.name, 12)<<"] [\""
-                               <<scriptpath<<"\"]"<<std::endl;
-               bool success = m_script->loadMod(scriptpath, mod.name);
-               if(!success){
-                       errorstream<<"Server: Failed to load and run "
-                                       <<scriptpath<<std::endl;
-                       throw ModError("Failed to load and run "+scriptpath);
+               if (!string_allowed(mod.name, MODNAME_ALLOWED_CHARS)) {
+                       errorstream << "Error loading mod \"" << mod.name
+                                       << "\": mod_name does not follow naming conventions: "
+                                       << "Only chararacters [a-z0-9_] are allowed." << std::endl;
+                       throw ModError("Mod \"" + mod.name + "\" does not follow naming conventions.");
+               }
+               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)) {
+                       errorstream << "Server: Failed to load and run "
+                                       << script_path << std::endl;
+                       throw ModError("Failed to load and run " + script_path);
                }
        }
 
@@ -340,7 +338,10 @@ Server::Server(
        m_nodedef->setNodeRegistrationStatus(true);
 
        // Perform pending node name resolutions
-       m_nodedef->runNodeResolverCallbacks();
+       m_nodedef->runNodeResolveCallbacks();
+
+       // init the recipe hashes to speed up crafting
+       m_craftdef->initHashes(this);
 
        // Initialize Environment
        m_env = new ServerEnvironment(servermap, m_script, this, m_path_world);
@@ -488,8 +489,16 @@ void Server::step(float dtime)
        }
        // Throw if fatal error occurred in thread
        std::string async_err = m_async_fatal_error.get();
-       if(async_err != ""){
-               throw ServerError(async_err);
+       if(async_err != "") {
+               if (m_simple_singleplayer_mode) {
+                       throw ServerError(async_err);
+               }
+               else {
+                       errorstream << "UNRECOVERABLE error occurred. Stopping server. "
+                                       << "Please fix the following error:" << std::endl
+                                       << async_err << std::endl;
+                       FATAL_ERROR(async_err.c_str());
+               }
        }
 }
 
@@ -535,23 +544,18 @@ void Server::AsyncRunStep(bool initial_step)
        /*
                Update time of day and overall game time
        */
-       {
-               JMutexAutoLock envlock(m_env_mutex);
+       m_env->setTimeOfDaySpeed(g_settings->getFloat("time_speed"));
 
-               m_env->setTimeOfDaySpeed(g_settings->getFloat("time_speed"));
-
-               /*
-                       Send to clients at constant intervals
-               */
+       /*
+               Send to clients at constant intervals
+       */
 
-               m_time_of_day_send_timer -= dtime;
-               if(m_time_of_day_send_timer < 0.0)
-               {
-                       m_time_of_day_send_timer = g_settings->getFloat("time_send_interval");
-                       u16 time = m_env->getTimeOfDay();
-                       float time_speed = g_settings->getFloat("time_speed");
-                       SendTimeOfDay(PEER_ID_INEXISTENT, time, time_speed);
-               }
+       m_time_of_day_send_timer -= dtime;
+       if(m_time_of_day_send_timer < 0.0) {
+               m_time_of_day_send_timer = g_settings->getFloat("time_send_interval");
+               u16 time = m_env->getTimeOfDay();
+               float time_speed = g_settings->getFloat("time_speed");
+               SendTimeOfDay(PEER_ID_INEXISTENT, time, time_speed);
        }
 
        {
@@ -586,56 +590,6 @@ void Server::AsyncRunStep(bool initial_step)
                Do background stuff
        */
 
-       /*
-               Handle players
-       */
-       {
-               JMutexAutoLock lock(m_env_mutex);
-
-               std::list<u16> clientids = m_clients.getClientIDs();
-
-               ScopeProfiler sp(g_profiler, "Server: handle players");
-
-               for(std::list<u16>::iterator
-                       i = clientids.begin();
-                       i != clientids.end(); ++i)
-               {
-                       PlayerSAO *playersao = getPlayerSAO(*i);
-                       if(playersao == NULL)
-                               continue;
-
-                       /*
-                               Handle player HPs (die if hp=0)
-                       */
-                       if(playersao->m_hp_not_sent && g_settings->getBool("enable_damage"))
-                       {
-                               if(playersao->getHP() == 0)
-                                       DiePlayer(*i);
-                               else
-                                       SendPlayerHP(*i);
-                       }
-
-                       /*
-                               Send player breath if changed
-                       */
-                       if(playersao->m_breath_not_sent) {
-                               SendPlayerBreath(*i);
-                       }
-
-                       /*
-                               Send player inventories if necessary
-                       */
-                       if(playersao->m_moved) {
-                               SendMovePlayer(*i);
-                               playersao->m_moved = false;
-                       }
-                       if(playersao->m_inventory_not_sent) {
-                               UpdateCrafting(*i);
-                               SendInventory(*i);
-                       }
-               }
-       }
-
        /* Transform liquids */
        m_liquid_transform_timer += dtime;
        if(m_liquid_transform_timer >= m_liquid_transform_every)
@@ -820,16 +774,11 @@ void Server::AsyncRunStep(bool initial_step)
                                        obj->m_known_by_count++;
                        }
 
-                       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD, 0, client->peer_id);
-                       pkt->putRawString(data_buffer.c_str(), data_buffer.size());
-
-
+                       u32 pktSize = SendActiveObjectRemoveAdd(client->peer_id, data_buffer);
                        verbosestream << "Server: Sent object remove/add: "
                                        << removed_objects.size() << " removed, "
                                        << added_objects.size() << " added, "
-                                       << "packet size is " << pkt->getSize() << std::endl;
-
-                       Send(pkt);
+                                       << "packet size is " << pktSize << std::endl;
                }
                m_clients.Unlock();
        }
@@ -843,25 +792,22 @@ void Server::AsyncRunStep(bool initial_step)
 
                // Key = object id
                // Value = data sent by object
-               std::map<u16, std::list<ActiveObjectMessage>* > buffered_messages;
+               std::map<u16, std::vector<ActiveObjectMessage>* > buffered_messages;
 
                // Get active object messages from environment
-               for(;;)
-               {
+               for(;;) {
                        ActiveObjectMessage aom = m_env->getActiveObjectMessage();
-                       if(aom.id == 0)
+                       if (aom.id == 0)
                                break;
 
-                       std::list<ActiveObjectMessage>* message_list = NULL;
-                       std::map<u16, std::list<ActiveObjectMessage>* >::iterator n;
+                       std::vector<ActiveObjectMessage>* message_list = NULL;
+                       std::map<u16, std::vector<ActiveObjectMessage>* >::iterator n;
                        n = buffered_messages.find(aom.id);
-                       if(n == buffered_messages.end())
-                       {
-                               message_list = new std::list<ActiveObjectMessage>;
+                       if (n == buffered_messages.end()) {
+                               message_list = new std::vector<ActiveObjectMessage>;
                                buffered_messages[aom.id] = message_list;
                        }
-                       else
-                       {
+                       else {
                                message_list = n->second;
                        }
                        message_list->push_back(aom);
@@ -870,28 +816,26 @@ void Server::AsyncRunStep(bool initial_step)
                m_clients.Lock();
                std::map<u16, RemoteClient*> clients = m_clients.getClientList();
                // Route data to every client
-               for(std::map<u16, RemoteClient*>::iterator
+               for (std::map<u16, RemoteClient*>::iterator
                        i = clients.begin();
-                       i != clients.end(); ++i)
-               {
+                       i != clients.end(); ++i) {
                        RemoteClient *client = i->second;
                        std::string reliable_data;
                        std::string unreliable_data;
                        // Go through all objects in message buffer
-                       for(std::map<u16, std::list<ActiveObjectMessage>* >::iterator
+                       for (std::map<u16, std::vector<ActiveObjectMessage>* >::iterator
                                        j = buffered_messages.begin();
-                                       j != buffered_messages.end(); ++j)
-                       {
+                                       j != buffered_messages.end(); ++j) {
                                // If object is not known by client, skip it
                                u16 id = j->first;
-                               if(client->m_known_objects.find(id) == client->m_known_objects.end())
+                               if (client->m_known_objects.find(id) == client->m_known_objects.end())
                                        continue;
+
                                // Get message list of object
-                               std::list<ActiveObjectMessage>* list = j->second;
+                               std::vector<ActiveObjectMessage>* list = j->second;
                                // Go through every message
-                               for(std::list<ActiveObjectMessage>::iterator
-                                               k = list->begin(); k != list->end(); ++k)
-                               {
+                               for (std::vector<ActiveObjectMessage>::iterator
+                                               k = list->begin(); k != list->end(); ++k) {
                                        // Compose the full new data with header
                                        ActiveObjectMessage aom = *k;
                                        std::string new_data;
@@ -913,28 +857,19 @@ void Server::AsyncRunStep(bool initial_step)
                                Send them.
                        */
                        if(reliable_data.size() > 0) {
-                               NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACTIVE_OBJECT_MESSAGES,
-                                               0, client->peer_id);
-
-                               pkt->putRawString(reliable_data.c_str(), reliable_data.size());
-                               Send(pkt);
+                               SendActiveObjectMessages(client->peer_id, reliable_data);
                        }
 
                        if(unreliable_data.size() > 0) {
-                               NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACTIVE_OBJECT_MESSAGES,
-                                               0, client->peer_id);
-
-                               pkt->putRawString(unreliable_data.c_str(), unreliable_data.size());
-                               Send(pkt);
+                               SendActiveObjectMessages(client->peer_id, unreliable_data, false);
                        }
                }
                m_clients.Unlock();
 
                // Clear buffered_messages
-               for(std::map<u16, std::list<ActiveObjectMessage>* >::iterator
+               for(std::map<u16, std::vector<ActiveObjectMessage>* >::iterator
                                i = buffered_messages.begin();
-                               i != buffered_messages.end(); ++i)
-               {
+                               i != buffered_messages.end(); ++i) {
                        delete i->second;
                }
        }
@@ -961,83 +896,67 @@ void Server::AsyncRunStep(bool initial_step)
 
                while(m_unsent_map_edit_queue.size() != 0)
                {
-                       MapEditEvent* event = m_unsent_map_edit_queue.pop_front();
+                       MapEditEvent* event = m_unsent_map_edit_queue.front();
+                       m_unsent_map_edit_queue.pop();
 
                        // Players far away from the change are stored here.
                        // Instead of sending the changes, MapBlocks are set not sent
                        // for them.
-                       std::list<u16> far_players;
+                       std::vector<u16> far_players;
 
-                       if(event->type == MEET_ADDNODE || event->type == MEET_SWAPNODE)
-                       {
-                               //infostream<<"Server: MEET_ADDNODE"<<std::endl;
+                       switch (event->type) {
+                       case MEET_ADDNODE:
+                       case MEET_SWAPNODE:
                                prof.add("MEET_ADDNODE", 1);
-                               if(disable_single_change_sending)
-                                       sendAddNode(event->p, event->n, event->already_known_by_peer,
-                                                       &far_players, 5, event->type == MEET_ADDNODE);
-                               else
-                                       sendAddNode(event->p, event->n, event->already_known_by_peer,
-                                                       &far_players, 30, event->type == MEET_ADDNODE);
-                       }
-                       else if(event->type == MEET_REMOVENODE)
-                       {
-                               //infostream<<"Server: MEET_REMOVENODE"<<std::endl;
+                               sendAddNode(event->p, event->n, event->already_known_by_peer,
+                                               &far_players, disable_single_change_sending ? 5 : 30,
+                                               event->type == MEET_ADDNODE);
+                               break;
+                       case MEET_REMOVENODE:
                                prof.add("MEET_REMOVENODE", 1);
-                               if(disable_single_change_sending)
-                                       sendRemoveNode(event->p, event->already_known_by_peer,
-                                                       &far_players, 5);
-                               else
-                                       sendRemoveNode(event->p, event->already_known_by_peer,
-                                                       &far_players, 30);
-                       }
-                       else if(event->type == MEET_BLOCK_NODE_METADATA_CHANGED)
-                       {
-                               infostream<<"Server: MEET_BLOCK_NODE_METADATA_CHANGED"<<std::endl;
-                               prof.add("MEET_BLOCK_NODE_METADATA_CHANGED", 1);
-                               setBlockNotSent(event->p);
-                       }
-                       else if(event->type == MEET_OTHER)
-                       {
-                               infostream<<"Server: MEET_OTHER"<<std::endl;
+                               sendRemoveNode(event->p, event->already_known_by_peer,
+                                               &far_players, disable_single_change_sending ? 5 : 30);
+                               break;
+                       case MEET_BLOCK_NODE_METADATA_CHANGED:
+                               infostream << "Server: MEET_BLOCK_NODE_METADATA_CHANGED" << std::endl;
+                                               prof.add("MEET_BLOCK_NODE_METADATA_CHANGED", 1);
+                                               setBlockNotSent(event->p);
+                               break;
+                       case MEET_OTHER:
+                               infostream << "Server: MEET_OTHER" << std::endl;
                                prof.add("MEET_OTHER", 1);
                                for(std::set<v3s16>::iterator
                                                i = event->modified_blocks.begin();
-                                               i != event->modified_blocks.end(); ++i)
-                               {
+                                               i != event->modified_blocks.end(); ++i) {
                                        setBlockNotSent(*i);
                                }
-                       }
-                       else
-                       {
+                               break;
+                       default:
                                prof.add("unknown", 1);
-                               infostream<<"WARNING: Server: Unknown MapEditEvent "
-                                               <<((u32)event->type)<<std::endl;
+                               infostream << "WARNING: Server: Unknown MapEditEvent "
+                                               << ((u32)event->type) << std::endl;
+                               break;
                        }
 
                        /*
                                Set blocks not sent to far players
                        */
-                       if(!far_players.empty())
-                       {
+                       if(!far_players.empty()) {
                                // Convert list format to that wanted by SetBlocksNotSent
                                std::map<v3s16, MapBlock*> modified_blocks2;
                                for(std::set<v3s16>::iterator
                                                i = event->modified_blocks.begin();
-                                               i != event->modified_blocks.end(); ++i)
-                               {
+                                               i != event->modified_blocks.end(); ++i) {
                                        modified_blocks2[*i] =
                                                        m_env->getMap().getBlockNoCreateNoEx(*i);
                                }
+
                                // Set blocks not sent
-                               for(std::list<u16>::iterator
+                               for(std::vector<u16>::iterator
                                                i = far_players.begin();
-                                               i != far_players.end(); ++i)
-                               {
-                                       u16 peer_id = *i;
-                                       RemoteClient *client = getClient(peer_id);
-                                       if(client==NULL)
-                                               continue;
-                                       client->SetBlocksNotSent(modified_blocks2);
+                                               i != far_players.end(); ++i) {
+                                       if(RemoteClient *client = getClient(*i))
+                                               client->SetBlocksNotSent(modified_blocks2);
                                }
                        }
 
@@ -1107,10 +1026,11 @@ void Server::Receive()
        DSTACK(__FUNCTION_NAME);
        SharedBuffer<u8> data;
        u16 peer_id;
-       u32 datasize;
        try {
-               datasize = m_con.Receive(peer_id,data);
-               ProcessData(*data, datasize, peer_id);
+               NetworkPacket pkt;
+               m_con.Receive(&pkt);
+               peer_id = pkt.getPeerId();
+               ProcessData(&pkt);
        }
        catch(con::InvalidIncomingDataException &e) {
                infostream<<"Server::Receive(): "
@@ -1124,7 +1044,7 @@ void Server::Receive()
        }
        catch(ClientStateError &e) {
                errorstream << "ProcessData: peer=" << peer_id  << e.what() << std::endl;
-               DenyAccess(peer_id, L"Your client sent something server didn't expect."
+               DenyAccess_Legacy(peer_id, L"Your client sent something server didn't expect."
                                L"Try reconnecting or updating your client");
        }
        catch(con::PeerNotFoundException &e) {
@@ -1157,13 +1077,13 @@ PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
                if(player && player->peer_id != 0) {
                        errorstream<<"Server: "<<playername<<": Failed to emerge player"
                                        <<" (player allocated to an another client)"<<std::endl;
-                       DenyAccess(peer_id, L"Another client is connected with this "
+                       DenyAccess_Legacy(peer_id, L"Another client is connected with this "
                                        L"name. If your client closed unexpectedly, try again in "
                                        L"a minute.");
                } else {
                        errorstream<<"Server: "<<playername<<": Failed to emerge player"
                                        <<std::endl;
-                       DenyAccess(peer_id, L"Could not allocate player.");
+                       DenyAccess_Legacy(peer_id, L"Could not allocate player.");
                }
                return NULL;
        }
@@ -1180,18 +1100,16 @@ PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
        SendPlayerInventoryFormspec(peer_id);
 
        // Send inventory
-       UpdateCrafting(peer_id);
-       SendInventory(peer_id);
+       SendInventory(playersao);
 
        // Send HP
-       if(g_settings->getBool("enable_damage"))
-               SendPlayerHP(peer_id);
+       SendPlayerHPOrDie(peer_id, playersao->getHP() == 0);
 
        // Send Breath
        SendPlayerBreath(peer_id);
 
        // Show death screen if necessary
-       if(player->hp == 0)
+       if(player->isDead())
                SendDeathscreen(peer_id, false, v3f(0,0,0));
 
        // Note things in chat if not in simple singleplayer mode
@@ -1240,13 +1158,14 @@ inline void Server::handleCommand(NetworkPacket* pkt)
        (this->*opHandle.handler)(pkt);
 }
 
-void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
+void Server::ProcessData(NetworkPacket *pkt)
 {
        DSTACK(__FUNCTION_NAME);
        // Environment is locked first.
        JMutexAutoLock envlock(m_env_mutex);
 
        ScopeProfiler sp(g_profiler, "Server::ProcessData");
+       u32 peer_id = pkt->getPeerId();
 
        try {
                Address address = getPeerAddress(peer_id);
@@ -1258,7 +1177,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                        << addr_s << "; banned name was "
                                        << ban_name << std::endl;
                        // This actually doesn't seem to transfer to the client
-                       DenyAccess(peer_id, L"Your ip is banned. Banned name was "
+                       DenyAccess_Legacy(peer_id, L"Your ip is banned. Banned name was "
                                        + narrow_to_wide(ban_name));
                        return;
                }
@@ -1270,17 +1189,12 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                 * respond for some time, your server was overloaded or
                 * things like that.
                 */
-               infostream << "Server::ProcessData(): Cancelling: peer "
+               infostream << "Server::ProcessData(): Canceling: peer "
                                << peer_id << " not found" << std::endl;
                return;
        }
 
        try {
-               if(datasize < 2)
-                       return;
-
-               NetworkPacket* pkt = new NetworkPacket(data, datasize, peer_id);
-
                ToServerCommand command = (ToServerCommand) pkt->getCommand();
 
                // Command must be handled into ToServerCommandHandler
@@ -1291,7 +1205,6 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 
                if (toServerCommandTable[command].state == TOSERVER_STATE_NOT_CONNECTED) {
                        handleCommand(pkt);
-                       delete pkt;
                        return;
                }
 
@@ -1301,15 +1214,12 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        errorstream << "Server::ProcessData(): Cancelling: Peer"
                                        " serialization format invalid or not initialized."
                                        " Skipping incoming command=" << command << std::endl;
-
-                       delete pkt;
                        return;
                }
 
                /* Handle commands related to client startup */
                if (toServerCommandTable[command].state == TOSERVER_STATE_STARTUP) {
                        handleCommand(pkt);
-                       delete pkt;
                        return;
                }
 
@@ -1319,19 +1229,18 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        errorstream << "Got packet command: " << command << " for peer id "
                                        << peer_id << " but client isn't active yet. Dropping packet "
                                        << std::endl;
-
-                       delete pkt;
                        return;
                }
 
                handleCommand(pkt);
-               delete pkt;
-
-       }
-       catch(SendFailedException &e) {
+       } catch (SendFailedException &e) {
                errorstream << "Server::ProcessData(): SendFailedException: "
                                << "what=" << e.what()
                                << std::endl;
+       } catch (PacketError &e) {
+               actionstream << "Server::ProcessData(): PacketError: "
+                               << "what=" << e.what()
+                               << std::endl;
        }
 }
 
@@ -1348,7 +1257,7 @@ void Server::onMapEditEvent(MapEditEvent *event)
        if(m_ignore_map_edit_events_area.contains(event->getArea()))
                return;
        MapEditEvent *e = event->clone();
-       m_unsent_map_edit_queue.push_back(e);
+       m_unsent_map_edit_queue.push(e);
 }
 
 Inventory* Server::getInventory(const InventoryLocation &loc)
@@ -1384,25 +1293,29 @@ Inventory* Server::getInventory(const InventoryLocation &loc)
        }
                break;
        default:
-               assert(0);
+               sanity_check(false); // abort
+               break;
        }
        return NULL;
 }
-void Server::setInventoryModified(const InventoryLocation &loc)
+void Server::setInventoryModified(const InventoryLocation &loc, bool playerSend)
 {
        switch(loc.type){
        case InventoryLocation::UNDEFINED:
                break;
        case InventoryLocation::PLAYER:
        {
+               if (!playerSend)
+                       return;
+
                Player *player = m_env->getPlayer(loc.name.c_str());
                if(!player)
                        return;
                PlayerSAO *playersao = player->getPlayerSAO();
                if(!playersao)
                        return;
-               playersao->m_inventory_not_sent = true;
-               playersao->m_wielded_item_not_sent = true;
+
+               SendInventory(playersao);
        }
                break;
        case InventoryLocation::NODEMETA:
@@ -1422,22 +1335,21 @@ void Server::setInventoryModified(const InventoryLocation &loc)
        }
                break;
        default:
-               assert(0);
+               sanity_check(false); // abort
+               break;
        }
 }
 
 void Server::SetBlocksNotSent(std::map<v3s16, MapBlock *>& block)
 {
-       std::list<u16> clients = m_clients.getClientIDs();
+       std::vector<u16> clients = m_clients.getClientIDs();
        m_clients.Lock();
        // Set the modified blocks unsent for all the clients
-       for (std::list<u16>::iterator
-                i = clients.begin();
+       for (std::vector<u16>::iterator i = clients.begin();
                 i != clients.end(); ++i) {
-                       RemoteClient *client = m_clients.lockedGetClientNoEx(*i);
-                       if (client != NULL)
+                       if (RemoteClient *client = m_clients.lockedGetClientNoEx(*i))
                                client->SetBlocksNotSent(block);
-               }
+       }
        m_clients.Unlock();
 }
 
@@ -1451,7 +1363,7 @@ void Server::peerAdded(con::Peer *peer)
        c.type = con::PEER_ADDED;
        c.peer_id = peer->id;
        c.timeout = false;
-       m_peer_change_queue.push_back(c);
+       m_peer_change_queue.push(c);
 }
 
 void Server::deletingPeer(con::Peer *peer, bool timeout)
@@ -1465,7 +1377,7 @@ void Server::deletingPeer(con::Peer *peer, bool timeout)
        c.type = con::PEER_REMOVED;
        c.peer_id = peer->id;
        c.timeout = timeout;
-       m_peer_change_queue.push_back(c);
+       m_peer_change_queue.push(c);
 }
 
 bool Server::getClientConInfo(u16 peer_id, con::rtt_stat_type type, float* retval)
@@ -1514,7 +1426,8 @@ void Server::handlePeerChanges()
 {
        while(m_peer_change_queue.size() > 0)
        {
-               con::PeerChange c = m_peer_change_queue.pop_front();
+               con::PeerChange c = m_peer_change_queue.front();
+               m_peer_change_queue.pop();
 
                verbosestream<<"Server: Handling peer change: "
                                <<"id="<<c.peer_id<<", timeout="<<c.timeout
@@ -1531,7 +1444,7 @@ void Server::handlePeerChanges()
                        break;
 
                default:
-                       assert("Invalid peer change event received!" == 0);
+                       FATAL_ERROR("Invalid peer change event received!");
                        break;
                }
        }
@@ -1550,49 +1463,62 @@ void Server::SendMovement(u16 peer_id)
        DSTACK(__FUNCTION_NAME);
        std::ostringstream os(std::ios_base::binary);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_MOVEMENT, 12 * sizeof(float), peer_id);
+       NetworkPacket pkt(TOCLIENT_MOVEMENT, 12 * sizeof(float), peer_id);
 
-       *pkt << g_settings->getFloat("movement_acceleration_default");
-       *pkt << g_settings->getFloat("movement_acceleration_air");
-       *pkt << g_settings->getFloat("movement_acceleration_fast");
-       *pkt << g_settings->getFloat("movement_speed_walk");
-       *pkt << g_settings->getFloat("movement_speed_crouch");
-       *pkt << g_settings->getFloat("movement_speed_fast");
-       *pkt << g_settings->getFloat("movement_speed_climb");
-       *pkt << g_settings->getFloat("movement_speed_jump");
-       *pkt << g_settings->getFloat("movement_liquid_fluidity");
-       *pkt << g_settings->getFloat("movement_liquid_fluidity_smooth");
-       *pkt << g_settings->getFloat("movement_liquid_sink");
-       *pkt << g_settings->getFloat("movement_gravity");
+       pkt << g_settings->getFloat("movement_acceleration_default");
+       pkt << g_settings->getFloat("movement_acceleration_air");
+       pkt << g_settings->getFloat("movement_acceleration_fast");
+       pkt << g_settings->getFloat("movement_speed_walk");
+       pkt << g_settings->getFloat("movement_speed_crouch");
+       pkt << g_settings->getFloat("movement_speed_fast");
+       pkt << g_settings->getFloat("movement_speed_climb");
+       pkt << g_settings->getFloat("movement_speed_jump");
+       pkt << g_settings->getFloat("movement_liquid_fluidity");
+       pkt << g_settings->getFloat("movement_liquid_fluidity_smooth");
+       pkt << g_settings->getFloat("movement_liquid_sink");
+       pkt << g_settings->getFloat("movement_gravity");
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendHP(u16 peer_id, u8 hp)
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HP, 1, peer_id);
-       *pkt << hp;
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_HP, 1, peer_id);
+       pkt << hp;
+       Send(&pkt);
 }
 
 void Server::SendBreath(u16 peer_id, u16 breath)
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_BREATH, 2, peer_id);
-       *pkt << (u16) breath;
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_BREATH, 2, peer_id);
+       pkt << (u16) breath;
+       Send(&pkt);
 }
 
-void Server::SendAccessDenied(u16 peer_id,const std::wstring &reason)
+void Server::SendAccessDenied(u16 peer_id, AccessDeniedCode reason, const std::string &custom_reason)
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACCESS_DENIED, 0, peer_id);
-       *pkt << reason;
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_ACCESS_DENIED, 1, peer_id);
+       pkt << (u8) reason;
+
+       if (reason == SERVER_ACCESSDENIED_CUSTOM_STRING) {
+               pkt << custom_reason;
+       }
+       Send(&pkt);
+}
+
+void Server::SendAccessDenied_Legacy(u16 peer_id,const std::wstring &reason)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       NetworkPacket pkt(TOCLIENT_ACCESS_DENIED_LEGACY, 0, peer_id);
+       pkt << reason;
+       Send(&pkt);
 }
 
 void Server::SendDeathscreen(u16 peer_id,bool set_camera_point_target,
@@ -1600,9 +1526,9 @@ void Server::SendDeathscreen(u16 peer_id,bool set_camera_point_target,
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_DEATHSCREEN, 1 + sizeof(v3f), peer_id);
-       *pkt << set_camera_point_target << camera_point_target;
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_DEATHSCREEN, 1 + sizeof(v3f), peer_id);
+       pkt << set_camera_point_target << camera_point_target;
+       Send(&pkt);
 }
 
 void Server::SendItemDef(u16 peer_id,
@@ -1610,7 +1536,7 @@ void Server::SendItemDef(u16 peer_id,
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ITEMDEF, 0, peer_id);
+       NetworkPacket pkt(TOCLIENT_ITEMDEF, 0, peer_id);
 
        /*
                u16 command
@@ -1621,13 +1547,13 @@ void Server::SendItemDef(u16 peer_id,
        itemdef->serialize(tmp_os, protocol_version);
        std::ostringstream tmp_os2(std::ios::binary);
        compressZlib(tmp_os.str(), tmp_os2);
-       pkt->putLongString(tmp_os2.str());
+       pkt.putLongString(tmp_os2.str());
 
        // Make data buffer
        verbosestream << "Server: Sending item definitions to id(" << peer_id
-                       << "): size=" << pkt->getSize() << std::endl;
+                       << "): size=" << pkt.getSize() << std::endl;
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendNodeDef(u16 peer_id,
@@ -1635,7 +1561,7 @@ void Server::SendNodeDef(u16 peer_id,
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_NODEDEF, 0, peer_id);
+       NetworkPacket pkt(TOCLIENT_NODEDEF, 0, peer_id);
 
        /*
                u16 command
@@ -1647,55 +1573,52 @@ void Server::SendNodeDef(u16 peer_id,
        std::ostringstream tmp_os2(std::ios::binary);
        compressZlib(tmp_os.str(), tmp_os2);
 
-       pkt->putLongString(tmp_os2.str());
+       pkt.putLongString(tmp_os2.str());
 
        // Make data buffer
        verbosestream << "Server: Sending node definitions to id(" << peer_id
-                       << "): size=" << pkt->getSize() << std::endl;
+                       << "): size=" << pkt.getSize() << std::endl;
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 /*
        Non-static send methods
 */
 
-void Server::SendInventory(u16 peer_id)
+void Server::SendInventory(PlayerSAO* playerSAO)
 {
        DSTACK(__FUNCTION_NAME);
 
-       PlayerSAO *playersao = getPlayerSAO(peer_id);
-       assert(playersao);
-
-       playersao->m_inventory_not_sent = false;
+       UpdateCrafting(playerSAO->getPlayer());
 
        /*
                Serialize it
        */
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_INVENTORY, 0, peer_id);
+       NetworkPacket pkt(TOCLIENT_INVENTORY, 0, playerSAO->getPeerID());
 
        std::ostringstream os;
-       playersao->getInventory()->serialize(os);
+       playerSAO->getInventory()->serialize(os);
 
        std::string s = os.str();
 
-       pkt->putRawString(s.c_str(), s.size());
-       Send(pkt);
+       pkt.putRawString(s.c_str(), s.size());
+       Send(&pkt);
 }
 
 void Server::SendChatMessage(u16 peer_id, const std::wstring &message)
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_CHAT_MESSAGE, 0, peer_id);
-       *pkt << message;
+       NetworkPacket pkt(TOCLIENT_CHAT_MESSAGE, 0, peer_id);
+       pkt << message;
 
        if (peer_id != PEER_ID_INEXISTENT) {
-               Send(pkt);
+               Send(&pkt);
        }
        else {
-               m_clients.sendToAll(0,pkt,true);
+               m_clients.sendToAll(0, &pkt, true);
        }
 }
 
@@ -1704,12 +1627,12 @@ void Server::SendShowFormspecMessage(u16 peer_id, const std::string &formspec,
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_SHOW_FORMSPEC, 0 , peer_id);
+       NetworkPacket pkt(TOCLIENT_SHOW_FORMSPEC, 0 , peer_id);
 
-       pkt->putLongString(FORMSPEC_VERSION_STRING + formspec);
-       *pkt << formname;
+       pkt.putLongString(FORMSPEC_VERSION_STRING + formspec);
+       pkt << formname;
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 // Spawns a particle on peer with peer_id
@@ -1719,18 +1642,18 @@ void Server::SendSpawnParticle(u16 peer_id, v3f pos, v3f velocity, v3f accelerat
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_SPAWN_PARTICLE, 0, peer_id);
+       NetworkPacket pkt(TOCLIENT_SPAWN_PARTICLE, 0, peer_id);
 
-       *pkt << pos << velocity << acceleration << expirationtime
+       pkt << pos << velocity << acceleration << expirationtime
                        << size << collisiondetection;
-       pkt->putLongString(texture);
-       *pkt << vertical;
+       pkt.putLongString(texture);
+       pkt << vertical;
 
        if (peer_id != PEER_ID_INEXISTENT) {
-               Send(pkt);
+               Send(&pkt);
        }
        else {
-               m_clients.sendToAll(0,pkt,true);
+               m_clients.sendToAll(0, &pkt, true);
        }
 }
 
@@ -1741,21 +1664,21 @@ void Server::SendAddParticleSpawner(u16 peer_id, u16 amount, float spawntime, v3
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ADD_PARTICLESPAWNER, 0, peer_id);
+       NetworkPacket pkt(TOCLIENT_ADD_PARTICLESPAWNER, 0, peer_id);
 
-       *pkt << amount << spawntime << minpos << maxpos << minvel << maxvel
+       pkt << amount << spawntime << minpos << maxpos << minvel << maxvel
                        << minacc << maxacc << minexptime << maxexptime << minsize
                        << maxsize << collisiondetection;
 
-       pkt->putLongString(texture);
+       pkt.putLongString(texture);
 
-       *pkt << id << vertical;
+       pkt << id << vertical;
 
        if (peer_id != PEER_ID_INEXISTENT) {
-               Send(pkt);
+               Send(&pkt);
        }
        else {
-               m_clients.sendToAll(0, pkt, true);
+               m_clients.sendToAll(0, &pkt, true);
        }
 }
 
@@ -1763,124 +1686,124 @@ void Server::SendDeleteParticleSpawner(u16 peer_id, u32 id)
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_DELETE_PARTICLESPAWNER, 2, peer_id);
+       NetworkPacket pkt(TOCLIENT_DELETE_PARTICLESPAWNER_LEGACY, 2, peer_id);
 
        // Ugly error in this packet
-       *pkt << (u16) id;
+       pkt << (u16) id;
 
        if (peer_id != PEER_ID_INEXISTENT) {
-               Send(pkt);
+               Send(&pkt);
        }
        else {
-               m_clients.sendToAll(0, pkt, true);
+               m_clients.sendToAll(0, &pkt, true);
        }
 
 }
 
 void Server::SendHUDAdd(u16 peer_id, u32 id, HudElement *form)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUDADD, 0 , peer_id);
+       NetworkPacket pkt(TOCLIENT_HUDADD, 0 , peer_id);
 
-       *pkt << id << (u8) form->type << form->pos << form->name << form->scale
+       pkt << id << (u8) form->type << form->pos << form->name << form->scale
                        << form->text << form->number << form->item << form->dir
                        << form->align << form->offset << form->world_pos << form->size;
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendHUDRemove(u16 peer_id, u32 id)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUDRM, 4, peer_id);
-       *pkt << id;
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_HUDRM, 4, peer_id);
+       pkt << id;
+       Send(&pkt);
 }
 
 void Server::SendHUDChange(u16 peer_id, u32 id, HudElementStat stat, void *value)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUDCHANGE, 0, peer_id);
-       *pkt << id << (u8) stat;
+       NetworkPacket pkt(TOCLIENT_HUDCHANGE, 0, peer_id);
+       pkt << id << (u8) stat;
 
        switch (stat) {
                case HUD_STAT_POS:
                case HUD_STAT_SCALE:
                case HUD_STAT_ALIGN:
                case HUD_STAT_OFFSET:
-                       *pkt << *(v2f *) value;
+                       pkt << *(v2f *) value;
                        break;
                case HUD_STAT_NAME:
                case HUD_STAT_TEXT:
-                       *pkt << *(std::string *) value;
+                       pkt << *(std::string *) value;
                        break;
                case HUD_STAT_WORLD_POS:
-                       *pkt << *(v3f *) value;
+                       pkt << *(v3f *) value;
                        break;
                case HUD_STAT_SIZE:
-                       *pkt << *(v2s32 *) value;
+                       pkt << *(v2s32 *) value;
                        break;
                case HUD_STAT_NUMBER:
                case HUD_STAT_ITEM:
                case HUD_STAT_DIR:
                default:
-                       *pkt << *(u32 *) value;
+                       pkt << *(u32 *) value;
                        break;
        }
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendHUDSetFlags(u16 peer_id, u32 flags, u32 mask)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUD_SET_FLAGS, 4 + 4, peer_id);
+       NetworkPacket pkt(TOCLIENT_HUD_SET_FLAGS, 4 + 4, peer_id);
 
        flags &= ~(HUD_FLAG_HEALTHBAR_VISIBLE | HUD_FLAG_BREATHBAR_VISIBLE);
 
-       *pkt << flags << mask;
+       pkt << flags << mask;
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendHUDSetParam(u16 peer_id, u16 param, const std::string &value)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUD_SET_PARAM, 0, peer_id);
-       *pkt << param << value;
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_HUD_SET_PARAM, 0, peer_id);
+       pkt << param << value;
+       Send(&pkt);
 }
 
 void Server::SendSetSky(u16 peer_id, const video::SColor &bgcolor,
                const std::string &type, const std::vector<std::string> &params)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_SET_SKY, 0, peer_id);
-       *pkt << bgcolor << type << (u16) params.size();
+       NetworkPacket pkt(TOCLIENT_SET_SKY, 0, peer_id);
+       pkt << bgcolor << type << (u16) params.size();
 
        for(size_t i=0; i<params.size(); i++)
-               *pkt << params[i];
+               pkt << params[i];
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendOverrideDayNightRatio(u16 peer_id, bool do_override,
                float ratio)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO,
+       NetworkPacket pkt(TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO,
                        1 + 2, peer_id);
 
-       *pkt << do_override << (u16) (ratio * 65535);
+       pkt << do_override << (u16) (ratio * 65535);
 
-       Send (pkt);
+       Send(&pkt);
 }
 
 void Server::SendTimeOfDay(u16 peer_id, u16 time, f32 time_speed)
 {
        DSTACK(__FUNCTION_NAME);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_TIME_OF_DAY, 0, peer_id);
-       *pkt << time << time_speed;
+       NetworkPacket pkt(TOCLIENT_TIME_OF_DAY, 0, peer_id);
+       pkt << time << time_speed;
 
        if (peer_id == PEER_ID_INEXISTENT) {
-               m_clients.sendToAll(0, pkt, true);
+               m_clients.sendToAll(0, &pkt, true);
        }
        else {
-               Send(pkt);
+               Send(&pkt);
        }
 }
 
@@ -1888,15 +1811,18 @@ void Server::SendPlayerHP(u16 peer_id)
 {
        DSTACK(__FUNCTION_NAME);
        PlayerSAO *playersao = getPlayerSAO(peer_id);
-       assert(playersao);
-       playersao->m_hp_not_sent = false;
+       // In some rare case, if the player is disconnected
+       // while Lua call l_punch, for example, this can be NULL
+       if (!playersao)
+               return;
+
        SendHP(peer_id, playersao->getHP());
        m_script->player_event(playersao,"health_changed");
 
        // Send to other clients
        std::string str = gob_cmd_punched(playersao->readDamage(), playersao->getHP());
        ActiveObjectMessage aom(playersao->getId(), true, str);
-       playersao->m_messages_out.push_back(aom);
+       playersao->m_messages_out.push(aom);
 }
 
 void Server::SendPlayerBreath(u16 peer_id)
@@ -1904,8 +1830,8 @@ void Server::SendPlayerBreath(u16 peer_id)
        DSTACK(__FUNCTION_NAME);
        PlayerSAO *playersao = getPlayerSAO(peer_id);
        assert(playersao);
-       playersao->m_breath_not_sent = false;
-       m_script->player_event(playersao,"breath_changed");
+
+       m_script->player_event(playersao, "breath_changed");
        SendBreath(peer_id, playersao->getBreath());
 }
 
@@ -1915,39 +1841,39 @@ void Server::SendMovePlayer(u16 peer_id)
        Player *player = m_env->getPlayer(peer_id);
        assert(player);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_MOVE_PLAYER, 0, peer_id);
-       *pkt << player->getPosition() << player->getPitch() << player->getYaw();
+       NetworkPacket pkt(TOCLIENT_MOVE_PLAYER, sizeof(v3f) + sizeof(f32) * 2, peer_id);
+       pkt << player->getPosition() << player->getPitch() << player->getYaw();
 
        {
                v3f pos = player->getPosition();
                f32 pitch = player->getPitch();
                f32 yaw = player->getYaw();
-               verbosestream<<"Server: Sending TOCLIENT_MOVE_PLAYER"
-                               <<" pos=("<<pos.X<<","<<pos.Y<<","<<pos.Z<<")"
-                               <<" pitch="<<pitch
-                               <<" yaw="<<yaw
-                               <<std::endl;
+               verbosestream << "Server: Sending TOCLIENT_MOVE_PLAYER"
+                               << " pos=(" << pos.X << "," << pos.Y << "," << pos.Z << ")"
+                               << " pitch=" << pitch
+                               << " yaw=" << yaw
+                               << std::endl;
        }
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendLocalPlayerAnimations(u16 peer_id, v2s32 animation_frames[4], f32 animation_speed)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_LOCAL_PLAYER_ANIMATIONS, 0,
+       NetworkPacket pkt(TOCLIENT_LOCAL_PLAYER_ANIMATIONS, 0,
                peer_id);
 
-       *pkt << animation_frames[0] << animation_frames[1] << animation_frames[2]
+       pkt << animation_frames[0] << animation_frames[1] << animation_frames[2]
                        << animation_frames[3] << animation_speed;
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendEyeOffset(u16 peer_id, v3f first, v3f third)
 {
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_EYE_OFFSET, 0, peer_id);
-       *pkt << first << third;
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_EYE_OFFSET, 0, peer_id);
+       pkt << first << third;
+       Send(&pkt);
 }
 void Server::SendPlayerPrivileges(u16 peer_id)
 {
@@ -1959,15 +1885,15 @@ void Server::SendPlayerPrivileges(u16 peer_id)
        std::set<std::string> privs;
        m_script->getAuth(player->getName(), NULL, &privs);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_PRIVILEGES, 0, peer_id);
-       *pkt << (u16) privs.size();
+       NetworkPacket pkt(TOCLIENT_PRIVILEGES, 0, peer_id);
+       pkt << (u16) privs.size();
 
        for(std::set<std::string>::const_iterator i = privs.begin();
                        i != privs.end(); i++) {
-               *pkt << (*i);
+               pkt << (*i);
        }
 
-       Send(pkt);
+       Send(&pkt);
 }
 
 void Server::SendPlayerInventoryFormspec(u16 peer_id)
@@ -1977,9 +1903,30 @@ void Server::SendPlayerInventoryFormspec(u16 peer_id)
        if(player->peer_id == PEER_ID_INEXISTENT)
                return;
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_INVENTORY_FORMSPEC, 0, peer_id);
-       pkt->putLongString(FORMSPEC_VERSION_STRING + player->inventory_formspec);
-       Send(pkt);
+       NetworkPacket pkt(TOCLIENT_INVENTORY_FORMSPEC, 0, peer_id);
+       pkt.putLongString(FORMSPEC_VERSION_STRING + player->inventory_formspec);
+       Send(&pkt);
+}
+
+u32 Server::SendActiveObjectRemoveAdd(u16 peer_id, const std::string &datas)
+{
+       NetworkPacket pkt(TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD, datas.size(), peer_id);
+       pkt.putRawString(datas.c_str(), datas.size());
+       Send(&pkt);
+       return pkt.getSize();
+}
+
+void Server::SendActiveObjectMessages(u16 peer_id, const std::string &datas, bool reliable)
+{
+       NetworkPacket pkt(TOCLIENT_ACTIVE_OBJECT_MESSAGES,
+                       datas.size(), peer_id);
+
+       pkt.putRawString(datas.c_str(), datas.size());
+
+       m_clients.send(pkt.getPeerId(),
+                       reliable ? clientCommandFactoryTable[pkt.getCommand()].channel : 1,
+                       &pkt, reliable);
+
 }
 
 s32 Server::playSound(const SimpleSoundSpec &spec,
@@ -1993,7 +1940,7 @@ s32 Server::playSound(const SimpleSoundSpec &spec,
                return -1;
 
        // Filter destination clients
-       std::list<u16> dst_clients;
+       std::vector<u16> dst_clients;
        if(params.to_player != "")
        {
                Player *player = m_env->getPlayer(params.to_player.c_str());
@@ -2009,17 +1956,16 @@ s32 Server::playSound(const SimpleSoundSpec &spec,
                }
                dst_clients.push_back(player->peer_id);
        }
-       else
-       {
-               std::list<u16> clients = m_clients.getClientIDs();
+       else {
+               std::vector<u16> clients = m_clients.getClientIDs();
 
-               for(std::list<u16>::iterator
-                               i = clients.begin(); i != clients.end(); ++i)
-               {
+               for(std::vector<u16>::iterator
+                               i = clients.begin(); i != clients.end(); ++i) {
                        Player *player = m_env->getPlayer(*i);
                        if(!player)
                                continue;
-                       if(pos_exists){
+
+                       if(pos_exists) {
                                if(player->getPosition().getDistanceFrom(pos) >
                                                params.max_hear_distance)
                                        continue;
@@ -2027,6 +1973,7 @@ s32 Server::playSound(const SimpleSoundSpec &spec,
                        dst_clients.push_back(*i);
                }
        }
+
        if(dst_clients.empty())
                return -1;
 
@@ -2036,19 +1983,16 @@ s32 Server::playSound(const SimpleSoundSpec &spec,
        m_playing_sounds[id] = ServerPlayingSound();
        ServerPlayingSound &psound = m_playing_sounds[id];
        psound.params = params;
-       for(std::list<u16>::iterator i = dst_clients.begin();
-                       i != dst_clients.end(); i++)
-               psound.clients.insert(*i);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_PLAY_SOUND, 0);
-       *pkt << id << spec.name << (float) (spec.gain * params.gain)
+       NetworkPacket pkt(TOCLIENT_PLAY_SOUND, 0);
+       pkt << id << spec.name << (float) (spec.gain * params.gain)
                        << (u8) params.type << pos << params.object << params.loop;
-       for(std::list<u16>::iterator i = dst_clients.begin();
+
+       for(std::vector<u16>::iterator i = dst_clients.begin();
                        i != dst_clients.end(); i++) {
-               // Send as reliable
-               m_clients.send(*i, 0, pkt, true, false);
+               psound.clients.insert(*i);
+               m_clients.send(*i, 0, &pkt, true);
        }
-       delete pkt;
        return id;
 }
 void Server::stopSound(s32 handle)
@@ -2060,33 +2004,31 @@ void Server::stopSound(s32 handle)
                return;
        ServerPlayingSound &psound = i->second;
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_STOP_SOUND, 4);
-       *pkt << handle;
+       NetworkPacket pkt(TOCLIENT_STOP_SOUND, 4);
+       pkt << handle;
 
        for(std::set<u16>::iterator i = psound.clients.begin();
                        i != psound.clients.end(); i++) {
                // Send as reliable
-               m_clients.send(*i, 0, pkt, true, false);
+               m_clients.send(*i, 0, &pkt, true);
        }
-       delete pkt;
        // Remove sound reference
        m_playing_sounds.erase(i);
 }
 
 void Server::sendRemoveNode(v3s16 p, u16 ignore_id,
-       std::list<u16> *far_players, float far_d_nodes)
+       std::vector<u16> *far_players, float far_d_nodes)
 {
        float maxd = far_d_nodes*BS;
        v3f p_f = intToFloat(p, BS);
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_REMOVENODE, 6);
-       *pkt << p;
+       NetworkPacket pkt(TOCLIENT_REMOVENODE, 6);
+       pkt << p;
 
-       std::list<u16> clients = m_clients.getClientIDs();
-       for(std::list<u16>::iterator
-               i = clients.begin();
+       std::vector<u16> clients = m_clients.getClientIDs();
+       for(std::vector<u16>::iterator i = clients.begin();
                i != clients.end(); ++i) {
-               if(far_players) {
+               if (far_players) {
                        // Get player
                        if(Player *player = m_env->getPlayer(*i)) {
                                // If player is far away, only set modified blocks not sent
@@ -2099,46 +2041,38 @@ void Server::sendRemoveNode(v3s16 p, u16 ignore_id,
                }
 
                // Send as reliable
-               m_clients.send(*i, 0, pkt, true, false);
+               m_clients.send(*i, 0, &pkt, true);
        }
-       // This loop needs the deletion of the packet here
-       delete pkt;
 }
 
 void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id,
-               std::list<u16> *far_players, float far_d_nodes,
+               std::vector<u16> *far_players, float far_d_nodes,
                bool remove_metadata)
 {
        float maxd = far_d_nodes*BS;
        v3f p_f = intToFloat(p, BS);
 
-       std::list<u16> clients = m_clients.getClientIDs();
-       for(std::list<u16>::iterator
-                       i = clients.begin();
-                       i != clients.end(); ++i)
-               {
+       std::vector<u16> clients = m_clients.getClientIDs();
+       for(std::vector<u16>::iterator i = clients.begin();
+                       i != clients.end(); ++i) {
 
-               if(far_players)
-               {
+               if(far_players) {
                        // Get player
-                       Player *player = m_env->getPlayer(*i);
-                       if(player)
-                       {
+                       if(Player *player = m_env->getPlayer(*i)) {
                                // If player is far away, only set modified blocks not sent
                                v3f player_pos = player->getPosition();
-                               if(player_pos.getDistanceFrom(p_f) > maxd)
-                               {
+                               if(player_pos.getDistanceFrom(p_f) > maxd) {
                                        far_players->push_back(*i);
                                        continue;
                                }
                        }
                }
 
-               NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ADDNODE, 6 + 2 + 1 + 1 + 1);
+               NetworkPacket pkt(TOCLIENT_ADDNODE, 6 + 2 + 1 + 1 + 1);
                m_clients.Lock();
                RemoteClient* client = m_clients.lockedGetClientNoEx(*i);
                if (client != 0) {
-                       *pkt << p << n.param0 << n.param1 << n.param2
+                       pkt << p << n.param0 << n.param1 << n.param2
                                        << (u8) (remove_metadata ? 0 : 1);
 
                        if (!remove_metadata) {
@@ -2152,19 +2086,17 @@ void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id,
                m_clients.Unlock();
 
                // Send as reliable
-               if (pkt->getSize() > 0)
-                       m_clients.send(*i, 0, pkt, true);
+               if (pkt.getSize() > 0)
+                       m_clients.send(*i, 0, &pkt, true);
        }
 }
 
 void Server::setBlockNotSent(v3s16 p)
 {
-       std::list<u16> clients = m_clients.getClientIDs();
+       std::vector<u16> clients = m_clients.getClientIDs();
        m_clients.Lock();
-       for(std::list<u16>::iterator
-               i = clients.begin();
-               i != clients.end(); ++i)
-       {
+       for(std::vector<u16>::iterator i = clients.begin();
+               i != clients.end(); ++i) {
                RemoteClient *client = m_clients.lockedGetClientNoEx(*i);
                client->SetBlockNotSent(p);
        }
@@ -2186,12 +2118,11 @@ void Server::SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver, u16 net_proto
        block->serializeNetworkSpecific(os, net_proto_version);
        std::string s = os.str();
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_BLOCKDATA,
-               2 + 2 + 2 + 2 + s.size(), peer_id);
+       NetworkPacket pkt(TOCLIENT_BLOCKDATA, 2 + 2 + 2 + 2 + s.size(), peer_id);
 
-       *pkt << p;
-       pkt->putRawString(s.c_str(), s.size());
-       Send(pkt);
+       pkt << p;
+       pkt.putRawString(s.c_str(), s.size());
+       Send(&pkt);
 }
 
 void Server::SendBlocks(float dtime)
@@ -2210,13 +2141,11 @@ void Server::SendBlocks(float dtime)
        {
                ScopeProfiler sp(g_profiler, "Server: selecting blocks for sending");
 
-               std::list<u16> clients = m_clients.getClientIDs();
+               std::vector<u16> clients = m_clients.getClientIDs();
 
                m_clients.Lock();
-               for(std::list<u16>::iterator
-                       i = clients.begin();
-                       i != clients.end(); ++i)
-               {
+               for(std::vector<u16>::iterator i = clients.begin();
+                       i != clients.end(); ++i) {
                        RemoteClient *client = m_clients.lockedGetClientNoEx(*i, CS_Active);
 
                        if (client == NULL)
@@ -2273,9 +2202,9 @@ void Server::fillMediaCache()
        infostream<<"Server: Calculating media file checksums"<<std::endl;
 
        // Collect all media file paths
-       std::list<std::string> paths;
+       std::vector<std::string> paths;
        for(std::vector<ModSpec>::iterator i = m_mods.begin();
-                       i != m_mods.end(); i++){
+                       i != m_mods.end(); i++) {
                const ModSpec &mod = *i;
                paths.push_back(mod.path + DIR_DELIM + "textures");
                paths.push_back(mod.path + DIR_DELIM + "sounds");
@@ -2285,19 +2214,18 @@ void Server::fillMediaCache()
        paths.push_back(porting::path_user + DIR_DELIM + "textures" + DIR_DELIM + "server");
 
        // Collect media file information from paths into cache
-       for(std::list<std::string>::iterator i = paths.begin();
-                       i != paths.end(); i++)
-       {
+       for(std::vector<std::string>::iterator i = paths.begin();
+                       i != paths.end(); i++) {
                std::string mediapath = *i;
                std::vector<fs::DirListNode> dirlist = fs::GetDirListing(mediapath);
-               for(u32 j=0; j<dirlist.size(); j++){
-                       if(dirlist[j].dir) // Ignode dirs
+               for (u32 j = 0; j < dirlist.size(); j++) {
+                       if (dirlist[j].dir) // Ignode dirs
                                continue;
                        std::string filename = dirlist[j].name;
                        // If name contains illegal characters, ignore the file
-                       if(!string_allowed(filename, TEXTURENAME_ALLOWED_CHARS)){
+                       if (!string_allowed(filename, TEXTURENAME_ALLOWED_CHARS)) {
                                infostream<<"Server: ignoring illegal file name: \""
-                                               <<filename<<"\""<<std::endl;
+                                               << filename << "\"" << std::endl;
                                continue;
                        }
                        // If name is not in a supported format, ignore it
@@ -2308,42 +2236,42 @@ void Server::fillMediaCache()
                                ".x", ".b3d", ".md2", ".obj",
                                NULL
                        };
-                       if(removeStringEnd(filename, supported_ext) == ""){
-                               infostream<<"Server: ignoring unsupported file extension: \""
-                                               <<filename<<"\""<<std::endl;
+                       if (removeStringEnd(filename, supported_ext) == ""){
+                               infostream << "Server: ignoring unsupported file extension: \""
+                                               << filename << "\"" << std::endl;
                                continue;
                        }
                        // Ok, attempt to load the file and add to cache
                        std::string filepath = mediapath + DIR_DELIM + filename;
                        // Read data
                        std::ifstream fis(filepath.c_str(), std::ios_base::binary);
-                       if(fis.good() == false){
-                               errorstream<<"Server::fillMediaCache(): Could not open \""
-                                               <<filename<<"\" for reading"<<std::endl;
+                       if (!fis.good()) {
+                               errorstream << "Server::fillMediaCache(): Could not open \""
+                                               << filename << "\" for reading" << std::endl;
                                continue;
                        }
                        std::ostringstream tmp_os(std::ios_base::binary);
                        bool bad = false;
-                       for(;;){
+                       for(;;) {
                                char buf[1024];
                                fis.read(buf, 1024);
                                std::streamsize len = fis.gcount();
                                tmp_os.write(buf, len);
-                               if(fis.eof())
+                               if (fis.eof())
                                        break;
-                               if(!fis.good()){
+                               if (!fis.good()) {
                                        bad = true;
                                        break;
                                }
                        }
-                       if(bad){
+                       if(bad) {
                                errorstream<<"Server::fillMediaCache(): Failed to read \""
-                                               <<filename<<"\""<<std::endl;
+                                               << filename << "\"" << std::endl;
                                continue;
                        }
-                       if(tmp_os.str().length() == 0){
-                               errorstream<<"Server::fillMediaCache(): Empty file \""
-                                               <<filepath<<"\""<<std::endl;
+                       if(tmp_os.str().length() == 0) {
+                               errorstream << "Server::fillMediaCache(): Empty file \""
+                                               << filepath << "\"" << std::endl;
                                continue;
                        }
 
@@ -2356,8 +2284,9 @@ void Server::fillMediaCache()
                        free(digest);
 
                        // Put in list
-                       this->m_media[filename] = MediaInfo(filepath, sha1_base64);
-                       verbosestream<<"Server: "<<sha1_hex<<" is "<<filename<<std::endl;
+                       m_media[filename] = MediaInfo(filepath, sha1_base64);
+                       verbosestream << "Server: " << sha1_hex << " is " << filename
+                                       << std::endl;
                }
        }
 }
@@ -2381,9 +2310,9 @@ void Server::sendMediaAnnouncement(u16 peer_id)
        verbosestream<<"Server: Announcing files to id("<<peer_id<<")"
                        <<std::endl;
 
-       std::list<SendableMediaAnnouncement> file_announcements;
+       std::vector<SendableMediaAnnouncement> file_announcements;
 
-       for(std::map<std::string, MediaInfo>::iterator i = m_media.begin();
+       for (std::map<std::string, MediaInfo>::iterator i = m_media.begin();
                        i != m_media.end(); i++){
                // Put in list
                file_announcements.push_back(
@@ -2393,27 +2322,17 @@ void Server::sendMediaAnnouncement(u16 peer_id)
        // Make packet
        std::ostringstream os(std::ios_base::binary);
 
-       /*
-               u32 number of files
-               for each texture {
-                       u16 length of name
-                       string name
-                       u16 length of sha1_digest
-                       string sha1_digest
-               }
-       */
-
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ANNOUNCE_MEDIA, 0, peer_id);
-       *pkt << (u16) file_announcements.size();
+       NetworkPacket pkt(TOCLIENT_ANNOUNCE_MEDIA, 0, peer_id);
+       pkt << (u16) file_announcements.size();
 
-       for(std::list<SendableMediaAnnouncement>::iterator
+       for (std::vector<SendableMediaAnnouncement>::iterator
                        j = file_announcements.begin();
                        j != file_announcements.end(); ++j) {
-               *pkt << j->name << j->sha1_digest;
+               pkt << j->name << j->sha1_digest;
        }
 
-       *pkt << g_settings->get("remote_media");
-       Send(pkt);
+       pkt << g_settings->get("remote_media");
+       Send(&pkt);
 }
 
 struct SendableMedia
@@ -2431,7 +2350,7 @@ struct SendableMedia
 };
 
 void Server::sendRequestedMedia(u16 peer_id,
-               const std::list<std::string> &tosend)
+               const std::vector<std::string> &tosend)
 {
        DSTACK(__FUNCTION_NAME);
 
@@ -2443,14 +2362,13 @@ void Server::sendRequestedMedia(u16 peer_id,
        // Put 5kB in one bunch (this is not accurate)
        u32 bytes_per_bunch = 5000;
 
-       std::vector< std::list<SendableMedia> > file_bunches;
-       file_bunches.push_back(std::list<SendableMedia>());
+       std::vector< std::vector<SendableMedia> > file_bunches;
+       file_bunches.push_back(std::vector<SendableMedia>());
 
        u32 file_size_bunch_total = 0;
 
-       for(std::list<std::string>::const_iterator i = tosend.begin();
-                       i != tosend.end(); ++i)
-       {
+       for(std::vector<std::string>::const_iterator i = tosend.begin();
+                       i != tosend.end(); ++i) {
                const std::string &name = *i;
 
                if(m_media.find(name) == m_media.end()) {
@@ -2497,7 +2415,7 @@ void Server::sendRequestedMedia(u16 peer_id,
 
                // Start next bunch if got enough data
                if(file_size_bunch_total >= bytes_per_bunch) {
-                       file_bunches.push_back(std::list<SendableMedia>());
+                       file_bunches.push_back(std::vector<SendableMedia>());
                        file_size_bunch_total = 0;
                }
 
@@ -2520,21 +2438,21 @@ void Server::sendRequestedMedia(u16 peer_id,
                        }
                */
 
-               NetworkPacket* pkt = new NetworkPacket(TOCLIENT_MEDIA, 0, peer_id);
-               *pkt << num_bunches << i << (u32) file_bunches[i].size();
+               NetworkPacket pkt(TOCLIENT_MEDIA, 4 + 0, peer_id);
+               pkt << num_bunches << i << (u32) file_bunches[i].size();
 
-               for(std::list<SendableMedia>::iterator
+               for(std::vector<SendableMedia>::iterator
                                j = file_bunches[i].begin();
                                j != file_bunches[i].end(); ++j) {
-                       *pkt << j->name;
-                       pkt->putLongString(j->data);
+                       pkt << j->name;
+                       pkt.putLongString(j->data);
                }
 
                verbosestream << "Server::sendRequestedMedia(): bunch "
                                << i << "/" << num_bunches
                                << " files=" << file_bunches[i].size()
-                               << " size="  << pkt->getSize() << std::endl;
-               Send(pkt);
+                               << " size="  << pkt.getSize() << std::endl;
+               Send(&pkt);
        }
 }
 
@@ -2553,14 +2471,14 @@ void Server::sendDetachedInventory(const std::string &name, u16 peer_id)
        // Make data buffer
        std::string s = os.str();
 
-       NetworkPacket* pkt = new NetworkPacket(TOCLIENT_DETACHED_INVENTORY, 0, peer_id);
-       pkt->putRawString(s.c_str(), s.size());
+       NetworkPacket pkt(TOCLIENT_DETACHED_INVENTORY, 0, peer_id);
+       pkt.putRawString(s.c_str(), s.size());
 
        if (peer_id != PEER_ID_INEXISTENT) {
-               Send(pkt);
+               Send(&pkt);
        }
        else {
-               m_clients.sendToAll(0, pkt, true);
+               m_clients.sendToAll(0, &pkt, true);
        }
 }
 
@@ -2588,9 +2506,9 @@ void Server::DiePlayer(u16 peer_id)
        PlayerSAO *playersao = getPlayerSAO(peer_id);
        assert(playersao);
 
-       infostream<<"Server::DiePlayer(): Player "
-                       <<playersao->getPlayer()->getName()
-                       <<" dies"<<std::endl;
+       infostream << "Server::DiePlayer(): Player "
+                       << playersao->getPlayer()->getName()
+                       << " dies" << std::endl;
 
        playersao->setHP(0);
 
@@ -2608,29 +2526,82 @@ void Server::RespawnPlayer(u16 peer_id)
        PlayerSAO *playersao = getPlayerSAO(peer_id);
        assert(playersao);
 
-       infostream<<"Server::RespawnPlayer(): Player "
-                       <<playersao->getPlayer()->getName()
-                       <<" respawns"<<std::endl;
+       infostream << "Server::RespawnPlayer(): Player "
+                       << playersao->getPlayer()->getName()
+                       << " respawns" << std::endl;
 
        playersao->setHP(PLAYER_MAX_HP);
        playersao->setBreath(PLAYER_MAX_BREATH);
 
+       SendPlayerHP(peer_id);
+       SendPlayerBreath(peer_id);
+
        bool repositioned = m_script->on_respawnplayer(playersao);
        if(!repositioned){
-               v3f pos = findSpawnPos(m_env->getServerMap());
+               v3f pos = findSpawnPos();
+               // setPos will send the new position to client
                playersao->setPos(pos);
        }
 }
+void Server::DenySudoAccess(u16 peer_id)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       NetworkPacket pkt(TOCLIENT_DENY_SUDO_MODE, 0, peer_id);
+       Send(&pkt);
+}
+
+void Server::DenyAccess(u16 peer_id, AccessDeniedCode reason, const std::string &custom_reason)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       SendAccessDenied(peer_id, reason, custom_reason);
+       m_clients.event(peer_id, CSE_SetDenied);
+       m_con.DisconnectPeer(peer_id);
+}
 
-void Server::DenyAccess(u16 peer_id, const std::wstring &reason)
+// 13/03/15: remove this function when protocol version 25 will become
+// the minimum version for MT users, maybe in 1 year
+void Server::DenyAccess_Legacy(u16 peer_id, const std::wstring &reason)
 {
        DSTACK(__FUNCTION_NAME);
 
-       SendAccessDenied(peer_id, reason);
+       SendAccessDenied_Legacy(peer_id, reason);
        m_clients.event(peer_id, CSE_SetDenied);
        m_con.DisconnectPeer(peer_id);
 }
 
+void Server::acceptAuth(u16 peer_id, bool forSudoMode)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       if (!forSudoMode) {
+               RemoteClient* client = getClient(peer_id, CS_Invalid);
+
+               NetworkPacket resp_pkt(TOCLIENT_AUTH_ACCEPT, 1 + 6 + 8 + 4, peer_id);
+
+               // Right now, the auth mechs don't change between login and sudo mode.
+               u32 sudo_auth_mechs = client->allowed_auth_mechs;
+               client->allowed_sudo_mechs = sudo_auth_mechs;
+
+               resp_pkt << v3f(0,0,0) << (u64) m_env->getServerMap().getSeed()
+                               << g_settings->getFloat("dedicated_server_step")
+                               << sudo_auth_mechs;
+
+               Send(&resp_pkt);
+               m_clients.event(peer_id, CSE_AuthAccept);
+       } else {
+               NetworkPacket resp_pkt(TOCLIENT_ACCEPT_SUDO_MODE, 1 + 6 + 8 + 4, peer_id);
+
+               // We only support SRP right now
+               u32 sudo_auth_mechs = AUTH_MECHANISM_FIRST_SRP;
+
+               resp_pkt << sudo_auth_mechs;
+               Send(&resp_pkt);
+               m_clients.event(peer_id, CSE_SudoSuccess);
+       }
+}
+
 void Server::DeleteClient(u16 peer_id, ClientDeletionReason reason)
 {
        DSTACK(__FUNCTION_NAME);
@@ -2683,26 +2654,24 @@ void Server::DeleteClient(u16 peer_id, ClientDeletionReason reason)
                        Print out action
                */
                {
-                       if(player != NULL && reason != CDR_DENY)
-                       {
+                       if(player != NULL && reason != CDR_DENY) {
                                std::ostringstream os(std::ios_base::binary);
-                               std::list<u16> clients = m_clients.getClientIDs();
+                               std::vector<u16> clients = m_clients.getClientIDs();
 
-                               for(std::list<u16>::iterator
-                                       i = clients.begin();
-                                       i != clients.end(); ++i)
-                               {
+                               for(std::vector<u16>::iterator i = clients.begin();
+                                       i != clients.end(); ++i) {
                                        // Get player
                                        Player *player = m_env->getPlayer(*i);
                                        if(!player)
                                                continue;
+
                                        // Get name of player
-                                       os<<player->getName()<<" ";
+                                       os << player->getName() << " ";
                                }
 
-                               actionstream<<player->getName()<<" "
-                                               <<(reason==CDR_TIMEOUT?"times out.":"leaves game.")
-                                               <<" List of players: "<<os.str()<<std::endl;
+                               actionstream << player->getName() << " "
+                                               << (reason == CDR_TIMEOUT ? "times out." : "leaves game.")
+                                               << " List of players: " << os.str() << std::endl;
                        }
                }
                {
@@ -2716,13 +2685,10 @@ void Server::DeleteClient(u16 peer_id, ClientDeletionReason reason)
                SendChatMessage(PEER_ID_INEXISTENT,message);
 }
 
-void Server::UpdateCrafting(u16 peer_id)
+void Server::UpdateCrafting(Player* player)
 {
        DSTACK(__FUNCTION_NAME);
 
-       Player* player = m_env->getPlayer(peer_id);
-       assert(player);
-
        // Get a preview for crafting
        ItemStack preview;
        InventoryLocation loc;
@@ -2732,8 +2698,8 @@ void Server::UpdateCrafting(u16 peer_id)
 
        // Put the new preview in
        InventoryList *plist = player->inventory.getList("craftpreview");
-       assert(plist);
-       assert(plist->getSize() >= 1);
+       sanity_check(plist);
+       sanity_check(plist->getSize() >= 1);
        plist->changeItem(0, preview);
 }
 
@@ -2771,7 +2737,7 @@ std::wstring Server::getStatusString()
        std::wostringstream os(std::ios_base::binary);
        os<<L"# Server: ";
        // Version
-       os<<L"version="<<narrow_to_wide(minetest_version_simple);
+       os<<L"version="<<narrow_to_wide(g_version_string);
        // Uptime
        os<<L", uptime="<<m_uptime.get();
        // Max lag estimate
@@ -2779,10 +2745,9 @@ std::wstring Server::getStatusString()
        // Information about clients
        bool first = true;
        os<<L", clients={";
-       std::list<u16> clients = m_clients.getClientIDs();
-       for(std::list<u16>::iterator i = clients.begin();
-               i != clients.end(); ++i)
-       {
+       std::vector<u16> clients = m_clients.getClientIDs();
+       for(std::vector<u16>::iterator i = clients.begin();
+               i != clients.end(); ++i) {
                // Get player
                Player *player = m_env->getPlayer(*i);
                // Get name of player
@@ -2791,12 +2756,12 @@ std::wstring Server::getStatusString()
                        name = narrow_to_wide(player->getName());
                // Add name to information string
                if(!first)
-                       os<<L", ";
+                       os << L", ";
                else
                        first = false;
-               os<<name;
+               os << name;
        }
-       os<<L"}";
+       os << L"}";
        if(((ServerMap*)(&m_env->getMap()))->isSavingEnabled() == false)
                os<<std::endl<<L"# Server: "<<" WARNING: Map saving is disabled.";
        if(g_settings->get("motd") != "")
@@ -2819,11 +2784,10 @@ bool Server::checkPriv(const std::string &name, const std::string &priv)
 
 void Server::reportPrivsModified(const std::string &name)
 {
-       if(name == ""){
-               std::list<u16> clients = m_clients.getClientIDs();
-               for(std::list<u16>::iterator
-                               i = clients.begin();
-                               i != clients.end(); ++i){
+       if(name == "") {
+               std::vector<u16> clients = m_clients.getClientIDs();
+               for(std::vector<u16>::iterator i = clients.begin();
+                               i != clients.end(); ++i) {
                        Player *player = m_env->getPlayer(*i);
                        reportPrivsModified(player->getName());
                }
@@ -3123,7 +3087,7 @@ Inventory* Server::createDetachedInventory(const std::string &name)
                infostream<<"Server creating detached inventory \""<<name<<"\""<<std::endl;
        }
        Inventory *inv = new Inventory(m_itemdef);
-       assert(inv);
+       sanity_check(inv);
        m_detached_inventories[name] = inv;
        //TODO find a better way to do this
        sendDetachedInventory(name,PEER_ID_INEXISTENT);
@@ -3248,9 +3212,9 @@ IWritableCraftDefManager* Server::getWritableCraftDefManager()
        return m_craftdef;
 }
 
-const ModSpec* Server::getModSpec(const std::string &modname)
+const ModSpec* Server::getModSpec(const std::string &modname) const
 {
-       for(std::vector<ModSpec>::iterator i = m_mods.begin();
+       for(std::vector<ModSpec>::const_iterator i = m_mods.begin();
                        i != m_mods.end(); i++){
                const ModSpec &mod = *i;
                if(mod.name == modname)
@@ -3258,10 +3222,9 @@ const ModSpec* Server::getModSpec(const std::string &modname)
        }
        return NULL;
 }
-void Server::getModNames(std::list<std::string> &modlist)
+void Server::getModNames(std::vector<std::string> &modlist)
 {
-       for(std::vector<ModSpec>::iterator i = m_mods.begin(); i != m_mods.end(); i++)
-       {
+       for(std::vector<ModSpec>::iterator i = m_mods.begin(); i != m_mods.end(); i++) {
                modlist.push_back(i->name);
        }
 }
@@ -3270,23 +3233,24 @@ std::string Server::getBuiltinLuaPath()
        return porting::path_share + DIR_DELIM + "builtin";
 }
 
-v3f findSpawnPos(ServerMap &map)
+v3f Server::findSpawnPos()
 {
-       //return v3f(50,50,50)*BS;
-
-       v3s16 nodepos;
+       ServerMap &map = m_env->getServerMap();
+       v3f nodeposf;
+       if (g_settings->getV3FNoEx("static_spawnpoint", nodeposf)) {
+               return nodeposf * BS;
+       }
 
-#if 0
-       nodepos = v2s16(0,0);
-       groundheight = 20;
-#endif
+       // Default position is static_spawnpoint
+       // We will return it if we don't found a good place
+       v3s16 nodepos(nodeposf.X, nodeposf.Y, nodeposf.Z);
 
-#if 1
        s16 water_level = map.getWaterLevel();
 
+       bool is_good = false;
+
        // Try to find a good place a few times
-       for(s32 i=0; i<1000; i++)
-       {
+       for(s32 i = 0; i < 1000 && !is_good; i++) {
                s32 range = 1 + i;
                // We're going to try to throw the player to this position
                v2s16 nodepos2d = v2s16(
@@ -3301,7 +3265,7 @@ v3f findSpawnPos(ServerMap &map)
                        continue;
 
                nodepos = v3s16(nodepos2d.X, groundheight, nodepos2d.Y);
-               bool is_good = false;
+
                s32 air_count = 0;
                for (s32 i = 0; i < 10; i++) {
                        v3s16 blockpos = getNodeBlockPos(nodepos);
@@ -3316,13 +3280,7 @@ v3f findSpawnPos(ServerMap &map)
                        }
                        nodepos.Y++;
                }
-               if(is_good){
-                       // Found a good place
-                       //infostream<<"Searched through "<<i<<" places."<<std::endl;
-                       break;
-               }
        }
-#endif
 
        return intToFloat(nodepos, BS);
 }
@@ -3365,7 +3323,7 @@ PlayerSAO* Server::emergePlayer(const char *name, u16 peer_id)
                // Set player position
                infostream<<"Server: Finding spawn place for player \""
                                <<name<<"\""<<std::endl;
-               v3f pos = findSpawnPos(m_env->getServerMap());
+               v3f pos = findSpawnPos();
                player->setPosition(pos);
 
                // Make sure the player is saved