3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #include "connection.h"
28 #include "serialization.h" // For SER_FMT_VER_INVALID
30 #include "inventorymanager.h"
32 #include "rollback_interface.h" // Needed for rollbackRevertActions()
33 #include "util/numeric.h"
34 #include "util/thread.h"
35 #include "environment.h"
36 #include "clientiface.h"
42 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
44 class IWritableItemDefManager;
45 class IWritableNodeDefManager;
46 class IWritableCraftDefManager;
52 class IRollbackManager;
55 class ServerEnvironment;
56 struct SimpleSoundSpec;
59 enum ClientDeletionReason {
68 v3f findSpawnPos(ServerMap &map);
70 class MapEditEventIgnorer
73 MapEditEventIgnorer(bool *flag):
82 ~MapEditEventIgnorer()
95 class MapEditEventAreaIgnorer
98 MapEditEventAreaIgnorer(VoxelArea *ignorevariable, const VoxelArea &a):
99 m_ignorevariable(ignorevariable)
101 if(m_ignorevariable->getVolume() == 0)
102 *m_ignorevariable = a;
104 m_ignorevariable = NULL;
107 ~MapEditEventAreaIgnorer()
111 assert(m_ignorevariable->getVolume() != 0);
112 *m_ignorevariable = VoxelArea();
117 VoxelArea *m_ignorevariable;
123 std::string sha1_digest;
125 MediaInfo(const std::string &path_="",
126 const std::string &sha1_digest_=""):
128 sha1_digest(sha1_digest_)
133 struct ServerSoundParams
136 std::string to_player;
144 float max_hear_distance;
153 max_hear_distance(32*BS),
157 v3f getPos(ServerEnvironment *env, bool *pos_exists) const;
160 struct ServerPlayingSound
162 ServerSoundParams params;
163 std::set<u16> clients; // peer ids
166 class Server : public con::PeerHandler, public MapEventReceiver,
167 public InventoryManager, public IGameDef
171 NOTE: Every public method should be thread-safe
175 const std::string &path_world,
176 const SubgameSpec &gamespec,
177 bool simple_singleplayer_mode
180 void start(Address bind_addr);
182 // This is mainly a way to pass the time to the server.
183 // Actual processing is done in an another thread.
184 void step(float dtime);
185 // This is run by ServerThread and does the actual processing
186 void AsyncRunStep(bool initial_step=false);
188 PlayerSAO* StageTwoClientInit(u16 peer_id);
189 void ProcessData(u8 *data, u32 datasize, u16 peer_id);
191 // Environment must be locked when called
192 void setTimeOfDay(u32 time);
195 Shall be called with the environment locked.
196 This is accessed by the map, which is inside the environment,
197 so it shouldn't be a problem.
199 void onMapEditEvent(MapEditEvent *event);
202 Shall be called with the environment and the connection locked.
204 Inventory* getInventory(const InventoryLocation &loc);
205 void setInventoryModified(const InventoryLocation &loc);
207 // Connection must be locked when called
208 std::wstring getStatusString();
210 // read shutdown state
211 inline bool getShutdownRequested()
212 { return m_shutdown_requested; }
214 // request server to shutdown
215 inline void requestShutdown(void)
216 { m_shutdown_requested = true; }
218 // Returns -1 if failed, sound handle on success
220 s32 playSound(const SimpleSoundSpec &spec, const ServerSoundParams ¶ms);
221 void stopSound(s32 handle);
224 std::set<std::string> getPlayerEffectivePrivs(const std::string &name);
225 bool checkPriv(const std::string &name, const std::string &priv);
226 void reportPrivsModified(const std::string &name=""); // ""=all
227 void reportInventoryFormspecModified(const std::string &name);
229 void setIpBanned(const std::string &ip, const std::string &name);
230 void unsetIpBanned(const std::string &ip_or_name);
231 std::string getBanDescription(const std::string &ip_or_name);
233 void notifyPlayer(const char *name, const std::wstring &msg);
234 void notifyPlayers(const std::wstring &msg);
235 void spawnParticle(const char *playername,
236 v3f pos, v3f velocity, v3f acceleration,
237 float expirationtime, float size,
238 bool collisiondetection, bool vertical, std::string texture);
240 void spawnParticleAll(v3f pos, v3f velocity, v3f acceleration,
241 float expirationtime, float size,
242 bool collisiondetection, bool vertical, std::string texture);
244 u32 addParticleSpawner(const char *playername,
245 u16 amount, float spawntime,
246 v3f minpos, v3f maxpos,
247 v3f minvel, v3f maxvel,
248 v3f minacc, v3f maxacc,
249 float minexptime, float maxexptime,
250 float minsize, float maxsize,
251 bool collisiondetection, bool vertical, std::string texture);
253 u32 addParticleSpawnerAll(u16 amount, float spawntime,
254 v3f minpos, v3f maxpos,
255 v3f minvel, v3f maxvel,
256 v3f minacc, v3f maxacc,
257 float minexptime, float maxexptime,
258 float minsize, float maxsize,
259 bool collisiondetection, bool vertical, std::string texture);
261 void deleteParticleSpawner(const char *playername, u32 id);
262 void deleteParticleSpawnerAll(u32 id);
264 // Creates or resets inventory
265 Inventory* createDetachedInventory(const std::string &name);
267 // Envlock and conlock should be locked when using scriptapi
268 GameScripting *getScriptIface(){ return m_script; }
270 // Envlock should be locked when using the rollback manager
271 IRollbackManager *getRollbackManager(){ return m_rollback; }
273 //TODO: determine what (if anything) should be locked to access EmergeManager
274 EmergeManager *getEmergeManager(){ return m_emerge; }
276 // actions: time-reversed list
277 // Return value: success/failure
278 bool rollbackRevertActions(const std::list<RollbackAction> &actions,
279 std::list<std::string> *log);
281 // IGameDef interface
283 virtual IItemDefManager* getItemDefManager();
284 virtual INodeDefManager* getNodeDefManager();
285 virtual ICraftDefManager* getCraftDefManager();
286 virtual ITextureSource* getTextureSource();
287 virtual IShaderSource* getShaderSource();
288 virtual u16 allocateUnknownNodeId(const std::string &name);
289 virtual ISoundManager* getSoundManager();
290 virtual MtEventManager* getEventManager();
291 virtual IRollbackReportSink* getRollbackReportSink();
293 IWritableItemDefManager* getWritableItemDefManager();
294 IWritableNodeDefManager* getWritableNodeDefManager();
295 IWritableCraftDefManager* getWritableCraftDefManager();
297 const ModSpec* getModSpec(const std::string &modname);
298 void getModNames(std::list<std::string> &modlist);
299 std::string getBuiltinLuaPath();
300 inline std::string getWorldPath()
301 { return m_path_world; }
303 inline bool isSingleplayer()
304 { return m_simple_singleplayer_mode; }
306 inline void setAsyncFatalError(const std::string &error)
307 { m_async_fatal_error.set(error); }
309 bool showFormspec(const char *name, const std::string &formspec, const std::string &formname);
310 Map & getMap() { return m_env->getMap(); }
311 ServerEnvironment & getEnv() { return *m_env; }
313 u32 hudAdd(Player *player, HudElement *element);
314 bool hudRemove(Player *player, u32 id);
315 bool hudChange(Player *player, u32 id, HudElementStat stat, void *value);
316 bool hudSetFlags(Player *player, u32 flags, u32 mask);
317 bool hudSetHotbarItemcount(Player *player, s32 hotbar_itemcount);
318 void hudSetHotbarImage(Player *player, std::string name);
319 void hudSetHotbarSelectedImage(Player *player, std::string name);
321 inline Address getPeerAddress(u16 peer_id)
322 { return m_con.GetPeerAddress(peer_id); }
324 bool setSky(Player *player, const video::SColor &bgcolor,
325 const std::string &type, const std::vector<std::string> ¶ms);
327 bool overrideDayNightRatio(Player *player, bool do_override,
330 /* con::PeerHandler implementation. */
331 void peerAdded(con::Peer *peer);
332 void deletingPeer(con::Peer *peer, bool timeout);
334 void DenyAccess(u16 peer_id, const std::wstring &reason);
335 bool getClientConInfo(u16 peer_id, con::rtt_stat_type type,float* retval);
336 bool getClientInfo(u16 peer_id,ClientState* state, u32* uptime,
337 u8* ser_vers, u16* prot_vers, u8* major, u8* minor, u8* patch,
338 std::string* vers_string);
342 friend class EmergeThread;
343 friend class RemoteClient;
345 void SendMovement(u16 peer_id);
346 void SendHP(u16 peer_id, u8 hp);
347 void SendBreath(u16 peer_id, u16 breath);
348 void SendAccessDenied(u16 peer_id,const std::wstring &reason);
349 void SendDeathscreen(u16 peer_id,bool set_camera_point_target, v3f camera_point_target);
350 void SendItemDef(u16 peer_id,IItemDefManager *itemdef, u16 protocol_version);
351 void SendNodeDef(u16 peer_id,INodeDefManager *nodedef, u16 protocol_version);
353 /* mark blocks not sent for all clients */
354 void SetBlocksNotSent(std::map<v3s16, MapBlock *>& block);
356 // Envlock and conlock should be locked when calling these
357 void SendInventory(u16 peer_id);
358 void SendChatMessage(u16 peer_id, const std::wstring &message);
359 void SendTimeOfDay(u16 peer_id, u16 time, f32 time_speed);
360 void SendPlayerHP(u16 peer_id);
361 void SendPlayerBreath(u16 peer_id);
362 void SendMovePlayer(u16 peer_id);
363 void SendPlayerPrivileges(u16 peer_id);
364 void SendPlayerInventoryFormspec(u16 peer_id);
365 void SendShowFormspecMessage(u16 peer_id, const std::string &formspec, const std::string &formname);
366 void SendHUDAdd(u16 peer_id, u32 id, HudElement *form);
367 void SendHUDRemove(u16 peer_id, u32 id);
368 void SendHUDChange(u16 peer_id, u32 id, HudElementStat stat, void *value);
369 void SendHUDSetFlags(u16 peer_id, u32 flags, u32 mask);
370 void SendHUDSetParam(u16 peer_id, u16 param, const std::string &value);
371 void SendSetSky(u16 peer_id, const video::SColor &bgcolor,
372 const std::string &type, const std::vector<std::string> ¶ms);
373 void SendOverrideDayNightRatio(u16 peer_id, bool do_override, float ratio);
376 Send a node removal/addition event to all clients except ignore_id.
377 Additionally, if far_players!=NULL, players further away than
378 far_d_nodes are ignored and their peer_ids are added to far_players
380 // Envlock and conlock should be locked when calling these
381 void sendRemoveNode(v3s16 p, u16 ignore_id=0,
382 std::list<u16> *far_players=NULL, float far_d_nodes=100);
383 void sendAddNode(v3s16 p, MapNode n, u16 ignore_id=0,
384 std::list<u16> *far_players=NULL, float far_d_nodes=100,
385 bool remove_metadata=true);
386 void setBlockNotSent(v3s16 p);
388 // Environment and Connection must be locked when called
389 void SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver, u16 net_proto_version);
391 // Sends blocks to clients (locks env and con on its own)
392 void SendBlocks(float dtime);
394 void fillMediaCache();
395 void sendMediaAnnouncement(u16 peer_id);
396 void sendRequestedMedia(u16 peer_id,
397 const std::list<std::string> &tosend);
399 void sendDetachedInventory(const std::string &name, u16 peer_id);
400 void sendDetachedInventories(u16 peer_id);
402 // Adds a ParticleSpawner on peer with peer_id (PEER_ID_INEXISTENT == all)
403 void SendAddParticleSpawner(u16 peer_id, u16 amount, float spawntime,
404 v3f minpos, v3f maxpos,
405 v3f minvel, v3f maxvel,
406 v3f minacc, v3f maxacc,
407 float minexptime, float maxexptime,
408 float minsize, float maxsize,
409 bool collisiondetection, bool vertical, std::string texture, u32 id);
411 void SendDeleteParticleSpawner(u16 peer_id, u32 id);
413 // Spawns particle on peer with peer_id (PEER_ID_INEXISTENT == all)
414 void SendSpawnParticle(u16 peer_id,
415 v3f pos, v3f velocity, v3f acceleration,
416 float expirationtime, float size,
417 bool collisiondetection, bool vertical, std::string texture);
423 void DiePlayer(u16 peer_id);
424 void RespawnPlayer(u16 peer_id);
425 void DeleteClient(u16 peer_id, ClientDeletionReason reason);
426 void UpdateCrafting(u16 peer_id);
428 // When called, connection mutex should be locked
429 RemoteClient* getClient(u16 peer_id,ClientState state_min=Active);
430 RemoteClient* getClientNoEx(u16 peer_id,ClientState state_min=Active);
432 // When called, environment mutex should be locked
433 std::string getPlayerName(u16 peer_id);
434 PlayerSAO* getPlayerSAO(u16 peer_id);
437 Get a player from memory or creates one.
438 If player is already connected, return NULL
439 Does not verify/modify auth info and password.
441 Call with env and con locked.
443 PlayerSAO *emergePlayer(const char *name, u16 peer_id);
445 void handlePeerChanges();
452 std::string m_path_world;
453 // Subgame specification
454 SubgameSpec m_gamespec;
455 // If true, do not allow multiple players and hide some multiplayer
457 bool m_simple_singleplayer_mode;
459 // Thread can set; step() will throw as ServerError
460 MutexedVariable<std::string> m_async_fatal_error;
463 float m_liquid_transform_timer;
464 float m_liquid_transform_every;
465 float m_print_info_timer;
466 float m_masterserver_timer;
467 float m_objectdata_timer;
468 float m_emergethread_trigger_timer;
469 float m_savemap_timer;
470 IntervalLimiter m_map_timer_and_unload_interval;
473 ServerEnvironment *m_env;
477 con::Connection m_con;
480 BanManager *m_banmanager;
482 // Rollback manager (behind m_env_mutex)
483 IRollbackManager *m_rollback;
484 bool m_rollback_sink_enabled;
485 bool m_enable_rollback_recording; // Updated once in a while
488 EmergeManager *m_emerge;
491 // Envlock and conlock should be locked when using Lua
492 GameScripting *m_script;
494 // Item definition manager
495 IWritableItemDefManager *m_itemdef;
497 // Node definition manager
498 IWritableNodeDefManager *m_nodedef;
500 // Craft definition manager
501 IWritableCraftDefManager *m_craftdef;
504 EventManager *m_event;
507 std::vector<ModSpec> m_mods;
513 // A buffer for time steps
514 // step() increments and AsyncRunStep() run by m_thread reads it.
516 JMutex m_step_dtime_mutex;
518 // current server step lag counter
521 // The server mainly operates in this thread
522 ServerThread *m_thread;
528 // Timer for sending time of day over network
529 float m_time_of_day_send_timer;
530 // Uptime of server in seconds
531 MutexedVariable<double> m_uptime;
536 ClientInterface m_clients;
540 Queues stuff from peerAdded() and deletingPeer() to
543 Queue<con::PeerChange> m_peer_change_queue;
549 // Mod parent directory paths
550 std::list<std::string> m_modspaths;
552 bool m_shutdown_requested;
555 Map edit event queue. Automatically receives all map edits.
556 The constructor of this class registers us to receive them through
559 NOTE: Should these be moved to actually be members of
564 Queue of map edits from the environment for sending to the clients
565 This is behind m_env_mutex
567 Queue<MapEditEvent*> m_unsent_map_edit_queue;
569 Set to true when the server itself is modifying the map and does
570 all sending of information by itself.
571 This is behind m_env_mutex
573 bool m_ignore_map_edit_events;
575 If a non-empty area, map edit events contained within are left
576 unsent. Done at map generation time to speed up editing of the
577 generated area, as it will be sent anyway.
578 This is behind m_env_mutex
580 VoxelArea m_ignore_map_edit_events_area;
582 If set to !=0, the incoming MapEditEvents are modified to have
583 this peed id as the disabled recipient
584 This is behind m_env_mutex
586 u16 m_ignore_map_edit_events_peer_id;
588 // media files known to server
589 std::map<std::string,MediaInfo> m_media;
594 std::map<s32, ServerPlayingSound> m_playing_sounds;
598 Detached inventories (behind m_env_mutex)
601 std::map<std::string, Inventory*> m_detached_inventories;
606 std::vector<u32> m_particlespawner_ids;
610 Runs a simple dedicated server loop.
612 Shuts down when run is set to false.
614 void dedicated_server_loop(Server &server, bool &run);