minetest/src/client.h
Loïc Blot c7160cb629 Network cleanup (#6302)
* Cleanup network headers

* Move peerhandler to a specific header to reduce compilation times
* Move socket.cpp/h to network folder

* More work

* Network code cleanups

* Move socket.{cpp,h} to network folder
* Move Address object to network/address.{cpp,h}
* Move network exceptions to network/networkexceptions.h
* Client: use unique_ptr for Connection
* Server/ClientIface: use shared_ptr for Connection

* Format fixes

* Remove socket.cpp socket.h from clang-format whitelist

* Also fix NetworkPacket code style & make it under clang-format
2017-08-24 08:28:54 +02:00

720 lines
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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "clientenvironment.h"
#include "irrlichttypes_extrabloated.h"
#include <ostream>
#include <map>
#include <set>
#include <vector>
#include <unordered_set>
#include "clientobject.h"
#include "gamedef.h"
#include "inventorymanager.h"
#include "localplayer.h"
#include "hud.h"
#include "particles.h"
#include "mapnode.h"
#include "tileanimation.h"
#include "mesh_generator_thread.h"
#include "network/address.h"
#include "network/peerhandler.h"
#include <fstream>
#define CLIENT_CHAT_MESSAGE_LIMIT_PER_10S 10.0f
struct MeshMakeData;
struct ChatMessage;
class MapBlockMesh;
class IWritableTextureSource;
class IWritableShaderSource;
class IWritableItemDefManager;
class IWritableNodeDefManager;
//class IWritableCraftDefManager;
class ClientMediaDownloader;
struct MapDrawControl;
class MtEventManager;
struct PointedThing;
class MapDatabase;
class Minimap;
struct MinimapMapblock;
class Camera;
class NetworkPacket;
namespace con {
class Connection;
}
enum LocalClientState {
LC_Created,
LC_Init,
LC_Ready
};
enum ClientEventType
{
CE_NONE,
CE_PLAYER_DAMAGE,
CE_PLAYER_FORCE_MOVE,
CE_DEATHSCREEN,
CE_SHOW_FORMSPEC,
CE_SHOW_LOCAL_FORMSPEC,
CE_SPAWN_PARTICLE,
CE_ADD_PARTICLESPAWNER,
CE_DELETE_PARTICLESPAWNER,
CE_HUDADD,
CE_HUDRM,
CE_HUDCHANGE,
CE_SET_SKY,
CE_OVERRIDE_DAY_NIGHT_RATIO,
CE_CLOUD_PARAMS,
};
struct ClientEvent
{
ClientEventType type;
union{
//struct{
//} none;
struct{
u8 amount;
} player_damage;
struct{
f32 pitch;
f32 yaw;
} player_force_move;
struct{
bool set_camera_point_target;
f32 camera_point_target_x;
f32 camera_point_target_y;
f32 camera_point_target_z;
} deathscreen;
struct{
std::string *formspec;
std::string *formname;
} show_formspec;
//struct{
//} textures_updated;
struct{
v3f *pos;
v3f *vel;
v3f *acc;
f32 expirationtime;
f32 size;
bool collisiondetection;
bool collision_removal;
bool vertical;
std::string *texture;
struct TileAnimationParams animation;
u8 glow;
} spawn_particle;
struct{
u16 amount;
f32 spawntime;
v3f *minpos;
v3f *maxpos;
v3f *minvel;
v3f *maxvel;
v3f *minacc;
v3f *maxacc;
f32 minexptime;
f32 maxexptime;
f32 minsize;
f32 maxsize;
bool collisiondetection;
bool collision_removal;
u16 attached_id;
bool vertical;
std::string *texture;
u32 id;
struct TileAnimationParams animation;
u8 glow;
} add_particlespawner;
struct{
u32 id;
} delete_particlespawner;
struct{
u32 id;
u8 type;
v2f *pos;
std::string *name;
v2f *scale;
std::string *text;
u32 number;
u32 item;
u32 dir;
v2f *align;
v2f *offset;
v3f *world_pos;
v2s32 * size;
} hudadd;
struct{
u32 id;
} hudrm;
struct{
u32 id;
HudElementStat stat;
v2f *v2fdata;
std::string *sdata;
u32 data;
v3f *v3fdata;
v2s32 * v2s32data;
} hudchange;
struct{
video::SColor *bgcolor;
std::string *type;
std::vector<std::string> *params;
bool clouds;
} set_sky;
struct{
bool do_override;
float ratio_f;
} override_day_night_ratio;
struct {
f32 density;
u32 color_bright;
u32 color_ambient;
f32 height;
f32 thickness;
f32 speed_x;
f32 speed_y;
} cloud_params;
};
};
/*
Packet counter
*/
class PacketCounter
{
public:
PacketCounter() = default;
void add(u16 command)
{
std::map<u16, u16>::iterator n = m_packets.find(command);
if(n == m_packets.end())
{
m_packets[command] = 1;
}
else
{
n->second++;
}
}
void clear()
{
for (auto &m_packet : m_packets) {
m_packet.second = 0;
}
}
void print(std::ostream &o)
{
for (const auto &m_packet : m_packets) {
o << "cmd "<< m_packet.first <<" count "<< m_packet.second << std::endl;
}
}
private:
// command, count
std::map<u16, u16> m_packets;
};
class ClientScripting;
struct GameUIFlags;
class Client : public con::PeerHandler, public InventoryManager, public IGameDef
{
public:
/*
NOTE: Nothing is thread-safe here.
*/
Client(
const char *playername,
const std::string &password,
const std::string &address_name,
MapDrawControl &control,
IWritableTextureSource *tsrc,
IWritableShaderSource *shsrc,
IWritableItemDefManager *itemdef,
IWritableNodeDefManager *nodedef,
ISoundManager *sound,
MtEventManager *event,
bool ipv6,
GameUIFlags *game_ui_flags
);
~Client();
DISABLE_CLASS_COPY(Client);
// Load local mods into memory
void loadMods();
void scanModSubfolder(const std::string &mod_name, const std::string &mod_path,
std::string mod_subpath);
inline void scanModIntoMemory(const std::string &mod_name, const std::string &mod_path)
{
scanModSubfolder(mod_name, mod_path, "");
}
// Initizle the mods
void initMods();
/*
request all threads managed by client to be stopped
*/
void Stop();
bool isShutdown();
/*
The name of the local player should already be set when
calling this, as it is sent in the initialization.
*/
void connect(Address address, bool is_local_server);
/*
Stuff that references the environment is valid only as
long as this is not called. (eg. Players)
If this throws a PeerNotFoundException, the connection has
timed out.
*/
void step(float dtime);
/*
* Command Handlers
*/
void handleCommand(NetworkPacket* pkt);
void handleCommand_Null(NetworkPacket* pkt) {};
void handleCommand_Deprecated(NetworkPacket* pkt);
void handleCommand_Hello(NetworkPacket* pkt);
void handleCommand_AuthAccept(NetworkPacket* pkt);
void handleCommand_AcceptSudoMode(NetworkPacket* pkt);
void handleCommand_DenySudoMode(NetworkPacket* pkt);
void handleCommand_InitLegacy(NetworkPacket* pkt);
void handleCommand_AccessDenied(NetworkPacket* pkt);
void handleCommand_RemoveNode(NetworkPacket* pkt);
void handleCommand_AddNode(NetworkPacket* pkt);
void handleCommand_BlockData(NetworkPacket* pkt);
void handleCommand_Inventory(NetworkPacket* pkt);
void handleCommand_TimeOfDay(NetworkPacket* pkt);
void handleCommand_ChatMessageOld(NetworkPacket *pkt);
void handleCommand_ChatMessage(NetworkPacket *pkt);
void handleCommand_ActiveObjectRemoveAdd(NetworkPacket* pkt);
void handleCommand_ActiveObjectMessages(NetworkPacket* pkt);
void handleCommand_Movement(NetworkPacket* pkt);
void handleCommand_HP(NetworkPacket* pkt);
void handleCommand_Breath(NetworkPacket* pkt);
void handleCommand_MovePlayer(NetworkPacket* pkt);
void handleCommand_DeathScreen(NetworkPacket* pkt);
void handleCommand_AnnounceMedia(NetworkPacket* pkt);
void handleCommand_Media(NetworkPacket* pkt);
void handleCommand_NodeDef(NetworkPacket* pkt);
void handleCommand_ItemDef(NetworkPacket* pkt);
void handleCommand_PlaySound(NetworkPacket* pkt);
void handleCommand_StopSound(NetworkPacket* pkt);
void handleCommand_FadeSound(NetworkPacket *pkt);
void handleCommand_Privileges(NetworkPacket* pkt);
void handleCommand_InventoryFormSpec(NetworkPacket* pkt);
void handleCommand_DetachedInventory(NetworkPacket* pkt);
void handleCommand_ShowFormSpec(NetworkPacket* pkt);
void handleCommand_SpawnParticle(NetworkPacket* pkt);
void handleCommand_AddParticleSpawner(NetworkPacket* pkt);
void handleCommand_DeleteParticleSpawner(NetworkPacket* pkt);
void handleCommand_HudAdd(NetworkPacket* pkt);
void handleCommand_HudRemove(NetworkPacket* pkt);
void handleCommand_HudChange(NetworkPacket* pkt);
void handleCommand_HudSetFlags(NetworkPacket* pkt);
void handleCommand_HudSetParam(NetworkPacket* pkt);
void handleCommand_HudSetSky(NetworkPacket* pkt);
void handleCommand_CloudParams(NetworkPacket* pkt);
void handleCommand_OverrideDayNightRatio(NetworkPacket* pkt);
void handleCommand_LocalPlayerAnimations(NetworkPacket* pkt);
void handleCommand_EyeOffset(NetworkPacket* pkt);
void handleCommand_UpdatePlayerList(NetworkPacket* pkt);
void handleCommand_SrpBytesSandB(NetworkPacket* pkt);
void handleCommand_CSMFlavourLimits(NetworkPacket *pkt);
void ProcessData(NetworkPacket *pkt);
void Send(NetworkPacket* pkt);
void interact(u8 action, const PointedThing& pointed);
void sendNodemetaFields(v3s16 p, const std::string &formname,
const StringMap &fields);
void sendInventoryFields(const std::string &formname,
const StringMap &fields);
void sendInventoryAction(InventoryAction *a);
void sendChatMessage(const std::wstring &message);
void clearOutChatQueue();
void sendChangePassword(const std::string &oldpassword,
const std::string &newpassword);
void sendDamage(u8 damage);
void sendBreath(u16 breath);
void sendRespawn();
void sendReady();
ClientEnvironment& getEnv() { return m_env; }
ITextureSource *tsrc() { return getTextureSource(); }
ISoundManager *sound() { return getSoundManager(); }
static const std::string &getBuiltinLuaPath();
static const std::string &getClientModsLuaPath();
virtual const std::vector<ModSpec> &getMods() const;
virtual const ModSpec* getModSpec(const std::string &modname) const;
// Causes urgent mesh updates (unlike Map::add/removeNodeWithEvent)
void removeNode(v3s16 p);
/**
* Helper function for Client Side Modding
* Flavour is applied there, this should not be used for core engine
* @param p
* @param is_valid_position
* @return
*/
MapNode getNode(v3s16 p, bool *is_valid_position);
void addNode(v3s16 p, MapNode n, bool remove_metadata = true);
void setPlayerControl(PlayerControl &control);
void selectPlayerItem(u16 item);
u16 getPlayerItem() const
{ return m_playeritem; }
// Returns true if the inventory of the local player has been
// updated from the server. If it is true, it is set to false.
bool getLocalInventoryUpdated();
// Copies the inventory of the local player to parameter
void getLocalInventory(Inventory &dst);
/* InventoryManager interface */
Inventory* getInventory(const InventoryLocation &loc);
void inventoryAction(InventoryAction *a);
const std::list<std::string> &getConnectedPlayerNames()
{
return m_env.getPlayerNames();
}
float getAnimationTime();
int getCrackLevel();
v3s16 getCrackPos();
void setCrack(int level, v3s16 pos);
u16 getHP();
bool checkPrivilege(const std::string &priv) const
{ return (m_privileges.count(priv) != 0); }
const std::unordered_set<std::string> &getPrivilegeList() const
{ return m_privileges; }
bool getChatMessage(std::wstring &message);
void typeChatMessage(const std::wstring& message);
u64 getMapSeed(){ return m_map_seed; }
void addUpdateMeshTask(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
// Including blocks at appropriate edges
void addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
void addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server=false, bool urgent=false);
void updateCameraOffset(v3s16 camera_offset)
{ m_mesh_update_thread.m_camera_offset = camera_offset; }
bool hasClientEvents() const { return !m_client_event_queue.empty(); }
// Get event from queue. If queue is empty, it triggers an assertion failure.
ClientEvent getClientEvent();
bool accessDenied() const { return m_access_denied; }
bool reconnectRequested() const { return m_access_denied_reconnect; }
void setFatalError(const std::string &reason)
{
m_access_denied = true;
m_access_denied_reason = reason;
}
// Renaming accessDeniedReason to better name could be good as it's used to
// disconnect client when CSM failed.
const std::string &accessDeniedReason() const { return m_access_denied_reason; }
bool itemdefReceived()
{ return m_itemdef_received; }
bool nodedefReceived()
{ return m_nodedef_received; }
bool mediaReceived()
{ return !m_media_downloader; }
u8 getProtoVersion()
{ return m_proto_ver; }
bool connectedToServer();
float mediaReceiveProgress();
void afterContentReceived();
float getRTT();
float getCurRate();
Minimap* getMinimap() { return m_minimap; }
void setCamera(Camera* camera) { m_camera = camera; }
Camera* getCamera () { return m_camera; }
bool shouldShowMinimap() const;
// IGameDef interface
virtual IItemDefManager* getItemDefManager();
virtual INodeDefManager* getNodeDefManager();
virtual ICraftDefManager* getCraftDefManager();
ITextureSource* getTextureSource();
virtual IShaderSource* getShaderSource();
IShaderSource *shsrc() { return getShaderSource(); }
virtual u16 allocateUnknownNodeId(const std::string &name);
virtual ISoundManager* getSoundManager();
virtual MtEventManager* getEventManager();
virtual ParticleManager* getParticleManager();
bool checkLocalPrivilege(const std::string &priv)
{ return checkPrivilege(priv); }
virtual scene::IAnimatedMesh* getMesh(const std::string &filename);
const std::string* getModFile(const std::string &filename);
virtual std::string getModStoragePath() const;
virtual bool registerModStorage(ModMetadata *meta);
virtual void unregisterModStorage(const std::string &name);
// The following set of functions is used by ClientMediaDownloader
// Insert a media file appropriately into the appropriate manager
bool loadMedia(const std::string &data, const std::string &filename);
// Send a request for conventional media transfer
void request_media(const std::vector<std::string> &file_requests);
LocalClientState getState() { return m_state; }
void makeScreenshot();
inline void pushToChatQueue(ChatMessage *cec)
{
m_chat_queue.push(cec);
}
ClientScripting *getScript() { return m_script; }
const bool moddingEnabled() const { return m_modding_enabled; }
inline void pushToEventQueue(const ClientEvent &event)
{
m_client_event_queue.push(event);
}
void showGameChat(bool show = true);
void showGameHud(bool show = true);
void showMinimap(bool show = true);
void showProfiler(bool show = true);
void showGameFog(bool show = true);
void showGameDebug(bool show = true);
const Address getServerAddress();
const std::string &getAddressName() const
{
return m_address_name;
}
inline bool checkCSMFlavourLimit(CSMFlavourLimit flag) const
{
return m_csm_flavour_limits & flag;
}
u32 getCSMNodeRangeLimit() const
{
return m_csm_noderange_limit;
}
private:
// Virtual methods from con::PeerHandler
void peerAdded(con::Peer *peer);
void deletingPeer(con::Peer *peer, bool timeout);
void initLocalMapSaving(const Address &address,
const std::string &hostname,
bool is_local_server);
void ReceiveAll();
void Receive();
void sendPlayerPos();
// Send the item number 'item' as player item to the server
void sendPlayerItem(u16 item);
void deleteAuthData();
// helper method shared with clientpackethandler
static AuthMechanism choseAuthMech(const u32 mechs);
void sendLegacyInit(const char* playerName, const char* playerPassword);
void sendInit(const std::string &playerName);
void startAuth(AuthMechanism chosen_auth_mechanism);
void sendDeletedBlocks(std::vector<v3s16> &blocks);
void sendGotBlocks(v3s16 block);
void sendRemovedSounds(std::vector<s32> &soundList);
// Helper function
inline std::string getPlayerName()
{ return m_env.getLocalPlayer()->getName(); }
bool canSendChatMessage() const;
float m_packetcounter_timer = 0.0f;
float m_connection_reinit_timer = 0.1f;
float m_avg_rtt_timer = 0.0f;
float m_playerpos_send_timer = 0.0f;
float m_ignore_damage_timer = 0.0f; // Used after server moves player
IntervalLimiter m_map_timer_and_unload_interval;
IWritableTextureSource *m_tsrc;
IWritableShaderSource *m_shsrc;
IWritableItemDefManager *m_itemdef;
IWritableNodeDefManager *m_nodedef;
ISoundManager *m_sound;
MtEventManager *m_event;
MeshUpdateThread m_mesh_update_thread;
ClientEnvironment m_env;
ParticleManager m_particle_manager;
std::unique_ptr<con::Connection> m_con;
std::string m_address_name;
Camera *m_camera = nullptr;
Minimap *m_minimap = nullptr;
bool m_minimap_disabled_by_server = false;
// Server serialization version
u8 m_server_ser_ver;
// Used version of the protocol with server
// Values smaller than 25 only mean they are smaller than 25,
// and aren't accurate. We simply just don't know, because
// the server didn't send the version back then.
// If 0, server init hasn't been received yet.
u8 m_proto_ver = 0;
u16 m_playeritem = 0;
bool m_inventory_updated = false;
Inventory *m_inventory_from_server = nullptr;
float m_inventory_from_server_age = 0.0f;
PacketCounter m_packetcounter;
// Block mesh animation parameters
float m_animation_time = 0.0f;
int m_crack_level = -1;
v3s16 m_crack_pos;
// 0 <= m_daynight_i < DAYNIGHT_CACHE_COUNT
//s32 m_daynight_i;
//u32 m_daynight_ratio;
std::queue<std::wstring> m_out_chat_queue;
u32 m_last_chat_message_sent;
float m_chat_message_allowance = 5.0f;
std::queue<ChatMessage *> m_chat_queue;
// The authentication methods we can use to enter sudo mode (=change password)
u32 m_sudo_auth_methods;
// The seed returned by the server in TOCLIENT_INIT is stored here
u64 m_map_seed = 0;
// Auth data
std::string m_playername;
std::string m_password;
// If set, this will be sent (and cleared) upon a TOCLIENT_ACCEPT_SUDO_MODE
std::string m_new_password;
// Usable by auth mechanisms.
AuthMechanism m_chosen_auth_mech;
void *m_auth_data = nullptr;
bool m_access_denied = false;
bool m_access_denied_reconnect = false;
std::string m_access_denied_reason = "";
std::queue<ClientEvent> m_client_event_queue;
bool m_itemdef_received = false;
bool m_nodedef_received = false;
ClientMediaDownloader *m_media_downloader;
// time_of_day speed approximation for old protocol
bool m_time_of_day_set = false;
float m_last_time_of_day_f = -1.0f;
float m_time_of_day_update_timer = 0.0f;
// An interval for generally sending object positions and stuff
float m_recommended_send_interval = 0.1f;
// Sounds
float m_removed_sounds_check_timer = 0.0f;
// Mapping from server sound ids to our sound ids
std::unordered_map<s32, int> m_sounds_server_to_client;
// And the other way!
std::unordered_map<int, s32> m_sounds_client_to_server;
// And relations to objects
std::unordered_map<int, u16> m_sounds_to_objects;
// Privileges
std::unordered_set<std::string> m_privileges;
// Detached inventories
// key = name
std::unordered_map<std::string, Inventory*> m_detached_inventories;
// Storage for mesh data for creating multiple instances of the same mesh
StringMap m_mesh_data;
StringMap m_mod_files;
// own state
LocalClientState m_state;
// Used for saving server map to disk client-side
MapDatabase *m_localdb = nullptr;
IntervalLimiter m_localdb_save_interval;
u16 m_cache_save_interval;
ClientScripting *m_script = nullptr;
bool m_modding_enabled;
std::unordered_map<std::string, ModMetadata *> m_mod_storages;
float m_mod_storage_save_timer = 10.0f;
std::vector<ModSpec> m_mods;
GameUIFlags *m_game_ui_flags;
bool m_shutdown = false;
// CSM flavour limits byteflag
u64 m_csm_flavour_limits = CSMFlavourLimit::CSM_FL_NONE;
u32 m_csm_noderange_limit = 8;
};