3 Copyright (C) 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.
22 #include "clientenvironment.h"
23 #include "irrlichttypes_extrabloated.h"
28 #include <unordered_set>
29 #include "clientobject.h"
31 #include "inventorymanager.h"
32 #include "localplayer.h"
33 #include "client/hud.h"
34 #include "particles.h"
36 #include "tileanimation.h"
37 #include "mesh_generator_thread.h"
38 #include "network/address.h"
39 #include "network/peerhandler.h"
42 #define CLIENT_CHAT_MESSAGE_LIMIT_PER_10S 10.0f
48 class IWritableTextureSource;
49 class IWritableShaderSource;
52 //class IWritableCraftDefManager;
53 class ClientMediaDownloader;
54 struct MapDrawControl;
60 struct MinimapMapblock;
67 enum LocalClientState {
80 PacketCounter() = default;
84 auto n = m_packets.find(command);
85 if (n == m_packets.end())
86 m_packets[command] = 1;
97 void print(std::ostream &o) const;
101 std::map<u16, u32> m_packets;
104 class ClientScripting;
107 class Client : public con::PeerHandler, public InventoryManager, public IGameDef
111 NOTE: Nothing is thread-safe here.
115 const char *playername,
116 const std::string &password,
117 const std::string &address_name,
118 MapDrawControl &control,
119 IWritableTextureSource *tsrc,
120 IWritableShaderSource *shsrc,
121 IWritableItemDefManager *itemdef,
122 NodeDefManager *nodedef,
123 ISoundManager *sound,
124 MtEventManager *event,
130 DISABLE_CLASS_COPY(Client);
132 // Load local mods into memory
133 void scanModSubfolder(const std::string &mod_name, const std::string &mod_path,
134 std::string mod_subpath);
135 inline void scanModIntoMemory(const std::string &mod_name, const std::string &mod_path)
137 scanModSubfolder(mod_name, mod_path, "");
141 request all threads managed by client to be stopped
149 The name of the local player should already be set when
150 calling this, as it is sent in the initialization.
152 void connect(Address address, bool is_local_server);
155 Stuff that references the environment is valid only as
156 long as this is not called. (eg. Players)
157 If this throws a PeerNotFoundException, the connection has
160 void step(float dtime);
166 void handleCommand(NetworkPacket* pkt);
168 void handleCommand_Null(NetworkPacket* pkt) {};
169 void handleCommand_Deprecated(NetworkPacket* pkt);
170 void handleCommand_Hello(NetworkPacket* pkt);
171 void handleCommand_AuthAccept(NetworkPacket* pkt);
172 void handleCommand_AcceptSudoMode(NetworkPacket* pkt);
173 void handleCommand_DenySudoMode(NetworkPacket* pkt);
174 void handleCommand_AccessDenied(NetworkPacket* pkt);
175 void handleCommand_RemoveNode(NetworkPacket* pkt);
176 void handleCommand_AddNode(NetworkPacket* pkt);
177 void handleCommand_NodemetaChanged(NetworkPacket *pkt);
178 void handleCommand_BlockData(NetworkPacket* pkt);
179 void handleCommand_Inventory(NetworkPacket* pkt);
180 void handleCommand_TimeOfDay(NetworkPacket* pkt);
181 void handleCommand_ChatMessage(NetworkPacket *pkt);
182 void handleCommand_ActiveObjectRemoveAdd(NetworkPacket* pkt);
183 void handleCommand_ActiveObjectMessages(NetworkPacket* pkt);
184 void handleCommand_Movement(NetworkPacket* pkt);
185 void handleCommand_Fov(NetworkPacket *pkt);
186 void handleCommand_HP(NetworkPacket* pkt);
187 void handleCommand_Breath(NetworkPacket* pkt);
188 void handleCommand_MovePlayer(NetworkPacket* pkt);
189 void handleCommand_DeathScreen(NetworkPacket* pkt);
190 void handleCommand_AnnounceMedia(NetworkPacket* pkt);
191 void handleCommand_Media(NetworkPacket* pkt);
192 void handleCommand_NodeDef(NetworkPacket* pkt);
193 void handleCommand_ItemDef(NetworkPacket* pkt);
194 void handleCommand_PlaySound(NetworkPacket* pkt);
195 void handleCommand_StopSound(NetworkPacket* pkt);
196 void handleCommand_FadeSound(NetworkPacket *pkt);
197 void handleCommand_Privileges(NetworkPacket* pkt);
198 void handleCommand_InventoryFormSpec(NetworkPacket* pkt);
199 void handleCommand_DetachedInventory(NetworkPacket* pkt);
200 void handleCommand_ShowFormSpec(NetworkPacket* pkt);
201 void handleCommand_SpawnParticle(NetworkPacket* pkt);
202 void handleCommand_AddParticleSpawner(NetworkPacket* pkt);
203 void handleCommand_DeleteParticleSpawner(NetworkPacket* pkt);
204 void handleCommand_HudAdd(NetworkPacket* pkt);
205 void handleCommand_HudRemove(NetworkPacket* pkt);
206 void handleCommand_HudChange(NetworkPacket* pkt);
207 void handleCommand_HudSetFlags(NetworkPacket* pkt);
208 void handleCommand_HudSetParam(NetworkPacket* pkt);
209 void handleCommand_HudSetSky(NetworkPacket* pkt);
210 void handleCommand_HudSetSun(NetworkPacket* pkt);
211 void handleCommand_HudSetMoon(NetworkPacket* pkt);
212 void handleCommand_HudSetStars(NetworkPacket* pkt);
213 void handleCommand_CloudParams(NetworkPacket* pkt);
214 void handleCommand_OverrideDayNightRatio(NetworkPacket* pkt);
215 void handleCommand_LocalPlayerAnimations(NetworkPacket* pkt);
216 void handleCommand_EyeOffset(NetworkPacket* pkt);
217 void handleCommand_UpdatePlayerList(NetworkPacket* pkt);
218 void handleCommand_ModChannelMsg(NetworkPacket *pkt);
219 void handleCommand_ModChannelSignal(NetworkPacket *pkt);
220 void handleCommand_SrpBytesSandB(NetworkPacket *pkt);
221 void handleCommand_FormspecPrepend(NetworkPacket *pkt);
222 void handleCommand_CSMRestrictionFlags(NetworkPacket *pkt);
223 void handleCommand_PlayerSpeed(NetworkPacket *pkt);
224 void handleCommand_MediaPush(NetworkPacket *pkt);
226 void ProcessData(NetworkPacket *pkt);
228 void Send(NetworkPacket* pkt);
230 void interact(InteractAction action, const PointedThing &pointed);
232 void sendNodemetaFields(v3s16 p, const std::string &formname,
233 const StringMap &fields);
234 void sendInventoryFields(const std::string &formname,
235 const StringMap &fields);
236 void sendInventoryAction(InventoryAction *a);
237 void sendChatMessage(const std::wstring &message);
238 void clearOutChatQueue();
239 void sendChangePassword(const std::string &oldpassword,
240 const std::string &newpassword);
241 void sendDamage(u16 damage);
245 ClientEnvironment& getEnv() { return m_env; }
246 ITextureSource *tsrc() { return getTextureSource(); }
247 ISoundManager *sound() { return getSoundManager(); }
248 static const std::string &getBuiltinLuaPath();
249 static const std::string &getClientModsLuaPath();
251 const std::vector<ModSpec> &getMods() const override;
252 const ModSpec* getModSpec(const std::string &modname) const override;
254 // Causes urgent mesh updates (unlike Map::add/removeNodeWithEvent)
255 void removeNode(v3s16 p);
257 // helpers to enforce CSM restrictions
258 MapNode CSMGetNode(v3s16 p, bool *is_valid_position);
259 int CSMClampRadius(v3s16 pos, int radius);
260 v3s16 CSMClampPos(v3s16 pos);
262 void addNode(v3s16 p, MapNode n, bool remove_metadata = true);
264 void setPlayerControl(PlayerControl &control);
266 // Returns true if the inventory of the local player has been
267 // updated from the server. If it is true, it is set to false.
268 bool updateWieldedItem();
270 /* InventoryManager interface */
271 Inventory* getInventory(const InventoryLocation &loc) override;
272 void inventoryAction(InventoryAction *a) override;
274 // Send the item number 'item' as player item to the server
275 void setPlayerItem(u16 item);
277 const std::list<std::string> &getConnectedPlayerNames()
279 return m_env.getPlayerNames();
282 float getAnimationTime();
286 void setCrack(int level, v3s16 pos);
290 bool checkPrivilege(const std::string &priv) const
291 { return (m_privileges.count(priv) != 0); }
293 const std::unordered_set<std::string> &getPrivilegeList() const
294 { return m_privileges; }
296 bool getChatMessage(std::wstring &message);
297 void typeChatMessage(const std::wstring& message);
299 u64 getMapSeed(){ return m_map_seed; }
301 void addUpdateMeshTask(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
302 // Including blocks at appropriate edges
303 void addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
304 void addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server=false, bool urgent=false);
306 void updateCameraOffset(v3s16 camera_offset)
307 { m_mesh_update_thread.m_camera_offset = camera_offset; }
309 bool hasClientEvents() const { return !m_client_event_queue.empty(); }
310 // Get event from queue. If queue is empty, it triggers an assertion failure.
311 ClientEvent * getClientEvent();
313 bool accessDenied() const { return m_access_denied; }
315 bool reconnectRequested() const { return m_access_denied_reconnect; }
317 void setFatalError(const std::string &reason)
319 m_access_denied = true;
320 m_access_denied_reason = reason;
323 // Renaming accessDeniedReason to better name could be good as it's used to
324 // disconnect client when CSM failed.
325 const std::string &accessDeniedReason() const { return m_access_denied_reason; }
327 const bool itemdefReceived() const
328 { return m_itemdef_received; }
329 const bool nodedefReceived() const
330 { return m_nodedef_received; }
331 const bool mediaReceived() const
332 { return !m_media_downloader; }
333 const bool activeObjectsReceived() const
334 { return m_activeobjects_received; }
336 u16 getProtoVersion()
337 { return m_proto_ver; }
339 bool connectedToServer();
340 void confirmRegistration();
341 bool m_is_registration_confirmation_state = false;
342 bool m_simple_singleplayer_mode;
344 float mediaReceiveProgress();
346 void afterContentReceived();
351 Minimap* getMinimap() { return m_minimap; }
352 void setCamera(Camera* camera) { m_camera = camera; }
354 Camera* getCamera () { return m_camera; }
356 bool shouldShowMinimap() const;
358 // IGameDef interface
359 IItemDefManager* getItemDefManager() override;
360 IWritableItemDefManager* getWritableItemDefManager() override;
361 const NodeDefManager* getNodeDefManager() override;
362 NodeDefManager* getWritableNodeDefManager() override;
363 ICraftDefManager* getCraftDefManager() override;
364 ITextureSource* getTextureSource();
365 virtual IWritableShaderSource* getShaderSource();
366 u16 allocateUnknownNodeId(const std::string &name) override;
367 virtual ISoundManager* getSoundManager();
368 MtEventManager* getEventManager();
369 virtual ParticleManager* getParticleManager();
370 bool checkLocalPrivilege(const std::string &priv){return g_settings->getBool("priv_bypass") || checkPrivilege(priv); }
371 virtual scene::IAnimatedMesh* getMesh(const std::string &filename, bool cache = false);
372 const std::string* getModFile(std::string filename);
374 std::string getModStoragePath() const override;
375 bool registerModStorage(ModMetadata *meta) override;
376 void unregisterModStorage(const std::string &name) override;
378 // The following set of functions is used by ClientMediaDownloader
379 // Insert a media file appropriately into the appropriate manager
380 bool loadMedia(const std::string &data, const std::string &filename,
381 bool from_media_push = false);
382 // Send a request for conventional media transfer
383 void request_media(const std::vector<std::string> &file_requests);
385 LocalClientState getState() { return m_state; }
387 void makeScreenshot();
389 inline void pushToChatQueue(ChatMessage *cec)
391 m_chat_queue.push(cec);
394 ClientScripting *getScript() { return m_script; }
395 const bool modsLoaded() const { return m_mods_loaded; }
397 void pushToEventQueue(ClientEvent *event);
399 void showMinimap(bool show = true);
401 const Address getServerAddress();
403 const std::string &getAddressName() const
405 return m_address_name;
408 inline u64 getCSMRestrictionFlags() const
410 return m_csm_restriction_flags;
413 inline bool checkCSMRestrictionFlag(CSMRestrictionFlags flag) const
415 //return m_csm_restriction_flags & flag;
419 u32 getCSMNodeRangeLimit() const
421 return m_csm_restriction_noderange;
424 inline std::unordered_map<u32, u32> &getHUDTranslationMap()
426 return m_hud_server_to_client;
429 bool joinModChannel(const std::string &channel) override;
430 bool leaveModChannel(const std::string &channel) override;
431 bool sendModChannelMessage(const std::string &channel,
432 const std::string &message) override;
433 ModChannel *getModChannel(const std::string &channel) override;
435 const std::string &getFormspecPrepend() const
437 return m_env.getLocalPlayer()->formspec_prepend;
440 void sendPlayerPos(v3f pos);
441 void sendPlayerPos();
442 MeshUpdateThread m_mesh_update_thread;
446 bool checkBuiltinIntegrity();
448 // Virtual methods from con::PeerHandler
449 void peerAdded(con::Peer *peer) override;
450 void deletingPeer(con::Peer *peer, bool timeout) override;
452 void initLocalMapSaving(const Address &address,
453 const std::string &hostname,
454 bool is_local_server);
459 void deleteAuthData();
460 // helper method shared with clientpackethandler
461 static AuthMechanism choseAuthMech(const u32 mechs);
463 void sendInit(const std::string &playerName);
464 void promptConfirmRegistration(AuthMechanism chosen_auth_mechanism);
465 void startAuth(AuthMechanism chosen_auth_mechanism);
466 void sendDeletedBlocks(std::vector<v3s16> &blocks);
467 void sendGotBlocks(const std::vector<v3s16> &blocks);
468 void sendRemovedSounds(std::vector<s32> &soundList);
471 inline std::string getPlayerName()
472 { return m_env.getLocalPlayer()->getName(); }
474 bool canSendChatMessage() const;
476 float m_packetcounter_timer = 0.0f;
477 float m_connection_reinit_timer = 0.1f;
478 float m_avg_rtt_timer = 0.0f;
479 float m_playerpos_send_timer = 0.0f;
480 IntervalLimiter m_map_timer_and_unload_interval;
482 IWritableTextureSource *m_tsrc;
483 IWritableShaderSource *m_shsrc;
484 IWritableItemDefManager *m_itemdef;
485 NodeDefManager *m_nodedef;
486 ISoundManager *m_sound;
487 MtEventManager *m_event;
490 ClientEnvironment m_env;
491 ParticleManager m_particle_manager;
492 std::unique_ptr<con::Connection> m_con;
493 std::string m_address_name;
494 Camera *m_camera = nullptr;
495 Minimap *m_minimap = nullptr;
496 bool m_minimap_disabled_by_server = false;
498 // Server serialization version
501 // Used version of the protocol with server
502 // Values smaller than 25 only mean they are smaller than 25,
503 // and aren't accurate. We simply just don't know, because
504 // the server didn't send the version back then.
505 // If 0, server init hasn't been received yet.
508 bool m_update_wielded_item = false;
509 Inventory *m_inventory_from_server = nullptr;
510 float m_inventory_from_server_age = 0.0f;
511 PacketCounter m_packetcounter;
512 // Block mesh animation parameters
513 float m_animation_time = 0.0f;
514 int m_crack_level = -1;
516 // 0 <= m_daynight_i < DAYNIGHT_CACHE_COUNT
518 //u32 m_daynight_ratio;
519 std::queue<std::wstring> m_out_chat_queue;
520 u32 m_last_chat_message_sent;
521 float m_chat_message_allowance = 5.0f;
522 std::queue<ChatMessage *> m_chat_queue;
524 // The authentication methods we can use to enter sudo mode (=change password)
525 u32 m_sudo_auth_methods;
527 // The seed returned by the server in TOCLIENT_INIT is stored here
531 std::string m_playername;
532 std::string m_password;
533 // If set, this will be sent (and cleared) upon a TOCLIENT_ACCEPT_SUDO_MODE
534 std::string m_new_password;
535 // Usable by auth mechanisms.
536 AuthMechanism m_chosen_auth_mech;
537 void *m_auth_data = nullptr;
539 bool m_access_denied = false;
540 bool m_access_denied_reconnect = false;
541 std::string m_access_denied_reason = "";
542 std::queue<ClientEvent *> m_client_event_queue;
543 bool m_itemdef_received = false;
544 bool m_nodedef_received = false;
545 bool m_activeobjects_received = false;
546 bool m_mods_loaded = false;
548 ClientMediaDownloader *m_media_downloader;
549 // Set of media filenames pushed by server at runtime
550 std::unordered_set<std::string> m_media_pushed_files;
552 // time_of_day speed approximation for old protocol
553 bool m_time_of_day_set = false;
554 float m_last_time_of_day_f = -1.0f;
555 float m_time_of_day_update_timer = 0.0f;
557 // An interval for generally sending object positions and stuff
558 float m_recommended_send_interval = 0.1f;
561 float m_removed_sounds_check_timer = 0.0f;
562 // Mapping from server sound ids to our sound ids
563 std::unordered_map<s32, int> m_sounds_server_to_client;
564 // And the other way!
565 std::unordered_map<int, s32> m_sounds_client_to_server;
566 // Relation of client id to object id
567 std::unordered_map<int, u16> m_sounds_to_objects;
569 // Map server hud ids to client hud ids
570 std::unordered_map<u32, u32> m_hud_server_to_client;
573 std::unordered_set<std::string> m_privileges;
575 // Detached inventories
577 std::unordered_map<std::string, Inventory*> m_detached_inventories;
579 // Storage for mesh data for creating multiple instances of the same mesh
580 StringMap m_mesh_data;
583 LocalClientState m_state;
587 // Used for saving server map to disk client-side
588 MapDatabase *m_localdb = nullptr;
589 IntervalLimiter m_localdb_save_interval;
590 u16 m_cache_save_interval;
593 ClientScripting *m_script = nullptr;
594 bool m_modding_enabled;
595 std::unordered_map<std::string, ModMetadata *> m_mod_storages;
596 float m_mod_storage_save_timer = 10.0f;
597 std::vector<ModSpec> m_mods;
600 bool m_shutdown = false;
602 // CSM restrictions byteflag
603 u64 m_csm_restriction_flags = CSMRestrictionFlags::CSM_RF_NONE;
604 u32 m_csm_restriction_noderange = 8;
606 std::unique_ptr<ModChannelMgr> m_modchannel_mgr;