OpenTTD Source  1.11.2
network_server.h
Go to the documentation of this file.
1 /*
2  * This file is part of OpenTTD.
3  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
4  * OpenTTD 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.
5  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
6  */
7 
10 #ifndef NETWORK_SERVER_H
11 #define NETWORK_SERVER_H
12 
13 #include "network_internal.h"
14 #include "core/tcp_listen.h"
15 
22 
24 class ServerNetworkGameSocketHandler : public NetworkClientSocketPool::PoolItem<&_networkclientsocket_pool>, public NetworkGameSocketHandler, public TCPListenHandler<ServerNetworkGameSocketHandler, PACKET_SERVER_FULL, PACKET_SERVER_BANNED> {
25 protected:
43 
50 
51 public:
53  enum ClientStatus {
65  };
66 
67  byte lag_test;
68  byte last_token;
73 
76 
79 
80  virtual Packet *ReceivePacket() override;
82  void GetClientName(char *client_name, const char *last) const;
83 
84  void CheckNextClientToSendMap(NetworkClientSocket *ignore_cs = nullptr);
85 
92  NetworkRecvStatus SendRConResult(uint16 colour, const char *command);
94 
96  NetworkRecvStatus SendError(NetworkErrorCode error, const char *reason = nullptr);
97  NetworkRecvStatus SendChat(NetworkAction action, ClientID client_id, bool self_send, const char *msg, int64 data);
104 
105  static void Send();
106  static void AcceptConnection(SOCKET s, const NetworkAddress &address);
107  static bool AllowConnection();
108 
113  static const char *GetName()
114  {
115  return "server";
116  }
117 
118  const char *GetClientIP();
119 
121 };
122 
123 void NetworkServer_Tick(bool send_frame);
124 void NetworkServerSetCompanyPassword(CompanyID company_id, const char *password, bool already_hashed = true);
125 void NetworkServerUpdateCompanyPassworded(CompanyID company_id, bool passworded);
126 
127 #endif /* NETWORK_SERVER_H */
ServerNetworkGameSocketHandler::Receive_CLIENT_QUIT
NetworkRecvStatus Receive_CLIENT_QUIT(Packet *p) override
The client is quitting the game.
Definition: network_server.cpp:1213
ServerNetworkGameSocketHandler::SendGameInfo
NetworkRecvStatus SendGameInfo()
Send the client information about the server.
Definition: network_server.cpp:368
ServerNetworkGameSocketHandler::STATUS_PRE_ACTIVE
@ STATUS_PRE_ACTIVE
The client is catching up the delayed frames.
Definition: network_server.h:62
NetworkAction
NetworkAction
Actions that can be used for NetworkTextMessage.
Definition: network_type.h:91
ServerNetworkGameSocketHandler::Receive_CLIENT_COMPANY_INFO
NetworkRecvStatus Receive_CLIENT_COMPANY_INFO(Packet *p) override
Request company information (in detail).
Definition: network_server.cpp:900
ServerNetworkGameSocketHandler::Receive_CLIENT_SET_PASSWORD
NetworkRecvStatus Receive_CLIENT_SET_PASSWORD(Packet *p) override
Set the password for the clients current company: string The password.
Definition: network_server.cpp:1436
ServerNetworkGameSocketHandler::last_token_frame
uint32 last_token_frame
The last frame we received the right token.
Definition: network_server.h:69
ServerNetworkGameSocketHandler::GetName
static const char * GetName()
Get the name used by the listener.
Definition: network_server.h:113
tcp_listen.h
ServerNetworkGameSocketHandler::ReceivePacket
virtual Packet * ReceivePacket() override
Receives a packet for the given client.
Definition: network_server.cpp:244
ServerNetworkGameSocketHandler::STATUS_MAP
@ STATUS_MAP
The client is downloading the map.
Definition: network_server.h:60
ServerNetworkGameSocketHandler::STATUS_MAP_WAIT
@ STATUS_MAP_WAIT
The client is waiting as someone else is downloading the map.
Definition: network_server.h:59
ServerNetworkGameSocketHandler::receive_limit
int receive_limit
Amount of bytes that we can receive at this moment.
Definition: network_server.h:72
Owner
Owner
Enum for all companies/owners.
Definition: company_type.h:18
NetworkGameSocketHandler
Base socket handler for all TCP sockets.
Definition: tcp_game.h:153
ServerNetworkGameSocketHandler::Receive_CLIENT_MAP_OK
NetworkRecvStatus Receive_CLIENT_MAP_OK(Packet *p) override
Tell the server that we are done receiving/loading the map.
Definition: network_server.cpp:1070
ServerNetworkGameSocketHandler::STATUS_ACTIVE
@ STATUS_ACTIVE
The client is active within in the game.
Definition: network_server.h:63
ServerNetworkGameSocketHandler::SendCommand
NetworkRecvStatus SendCommand(const CommandPacket *cp)
Send a command to the client to execute.
Definition: network_server.cpp:757
ServerNetworkGameSocketHandler::SendRConResult
NetworkRecvStatus SendRConResult(uint16 colour, const char *command)
Send the result of a console action.
Definition: network_server.cpp:844
ServerNetworkGameSocketHandler::Receive_CLIENT_COMPANY_PASSWORD
NetworkRecvStatus Receive_CLIENT_COMPANY_PASSWORD(Packet *p) override
Send a password to the server to authorize uint8 Password type (see NetworkPasswordType).
Definition: network_server.cpp:1027
ServerNetworkGameSocketHandler::Receive_CLIENT_NEWGRFS_CHECKED
NetworkRecvStatus Receive_CLIENT_NEWGRFS_CHECKED(Packet *p) override
Tell the server that we have the required GRFs.
Definition: network_server.cpp:905
TCPListenHandler
Template for TCP listeners.
Definition: tcp_listen.h:28
ServerNetworkGameSocketHandler::~ServerNetworkGameSocketHandler
~ServerNetworkGameSocketHandler()
Clear everything related to this client.
Definition: network_server.cpp:233
ServerNetworkGameSocketHandler::ClientStatus
ClientStatus
Status of a client.
Definition: network_server.h:53
ServerNetworkGameSocketHandler::STATUS_INACTIVE
@ STATUS_INACTIVE
The client is not connected nor active.
Definition: network_server.h:54
ServerNetworkGameSocketHandler::Send
static void Send()
Send the packets for the server sockets.
Definition: network_server.cpp:331
PacketWriter
Writing a savegame directly to a number of packets.
Definition: network_server.cpp:57
CommandPacket
Everything we need to know about a command to be able to execute it.
Definition: network_internal.h:142
ServerNetworkGameSocketHandler::SendSync
NetworkRecvStatus SendSync()
Request the client to sync.
Definition: network_server.cpp:740
ServerNetworkGameSocketHandler::SendConfigUpdate
NetworkRecvStatus SendConfigUpdate()
Send an update about the max company/spectator counts.
Definition: network_server.cpp:880
ServerNetworkGameSocketHandler::Receive_CLIENT_GAME_INFO
NetworkRecvStatus Receive_CLIENT_GAME_INFO(Packet *p) override
Request game information.
Definition: network_server.cpp:895
ClientID
ClientID
'Unique' identifier to be given to clients
Definition: network_type.h:39
ServerNetworkGameSocketHandler::SendMove
NetworkRecvStatus SendMove(ClientID client_id, CompanyID company_id)
Tell that a client moved to another company.
Definition: network_server.cpp:859
ServerNetworkGameSocketHandler::Receive_CLIENT_JOIN
NetworkRecvStatus Receive_CLIENT_JOIN(Packet *p) override
Try to join the server: string OpenTTD revision (norev000 if no revision).
Definition: network_server.cpp:926
ServerNetworkGameSocketHandler::SendJoin
NetworkRecvStatus SendJoin(ClientID client_id)
Tell that a client joined.
Definition: network_server.cpp:706
ServerNetworkGameSocketHandler::SendFrame
NetworkRecvStatus SendFrame()
Tell the client that they may run to a particular frame.
Definition: network_server.cpp:717
NetworkServerUpdateCompanyPassworded
void NetworkServerUpdateCompanyPassworded(CompanyID company_id, bool passworded)
Tell that a particular company is (not) passworded.
Definition: network_server.cpp:2044
CommandQueue
A queue of CommandPackets.
Definition: tcp_game.h:134
ServerNetworkGameSocketHandler::SendCompanyUpdate
NetworkRecvStatus SendCompanyUpdate()
Send an update about the company password states.
Definition: network_server.cpp:870
ServerNetworkGameSocketHandler::SendWelcome
NetworkRecvStatus SendWelcome()
Send the client a welcome message with some basic information.
Definition: network_server.cpp:546
ServerNetworkGameSocketHandler::Receive_CLIENT_MOVE
NetworkRecvStatus Receive_CLIENT_MOVE(Packet *p) override
Request the server to move this client into another company: uint8 ID of the company the client wants...
Definition: network_server.cpp:1504
ServerNetworkGameSocketHandler::GetByClientID
static ServerNetworkGameSocketHandler * GetByClientID(ClientID client_id)
Return the client state given it's client-identifier.
Definition: network.cpp:125
ServerNetworkGameSocketHandler::status
ClientStatus status
Status of this client.
Definition: network_server.h:70
ServerNetworkGameSocketHandler::savegame
struct PacketWriter * savegame
Writer used to write the savegame.
Definition: network_server.h:74
Packet
Internal entity of a packet.
Definition: packet.h:40
ServerNetworkGameSocketHandler::SendClientInfo
NetworkRecvStatus SendClientInfo(NetworkClientInfo *ci)
Send the client information about a client.
Definition: network_server.cpp:354
NetworkServerSetCompanyPassword
void NetworkServerSetCompanyPassword(CompanyID company_id, const char *password, bool already_hashed=true)
Set/Reset a company password on the server end.
Definition: network_server.cpp:1804
ServerNetworkGameSocketHandler::AcceptConnection
static void AcceptConnection(SOCKET s, const NetworkAddress &address)
Handle the accepting of a connection to the server.
Definition: network.cpp:492
ServerNetworkGameSocketHandler::STATUS_DONE_MAP
@ STATUS_DONE_MAP
The client has downloaded the map.
Definition: network_server.h:61
ServerNetworkGameSocketHandler::GetClientIP
const char * GetClientIP()
Get the IP address/hostname of the connected client.
Definition: network_server.cpp:1993
ServerNetworkGameSocketHandler::SendQuit
NetworkRecvStatus SendQuit(ClientID client_id)
Tell the client another client quit.
Definition: network_server.cpp:813
ServerNetworkGameSocketHandler::lag_test
byte lag_test
Byte used for lag-testing the client.
Definition: network_server.h:67
ServerNetworkGameSocketHandler::SendErrorQuit
NetworkRecvStatus SendErrorQuit(ClientID client_id, NetworkErrorCode errorno)
Tell the client another client quit with an error.
Definition: network_server.cpp:798
ServerNetworkGameSocketHandler
Class for handling the server side of the game connection.
Definition: network_server.h:24
NetworkServer_Tick
void NetworkServer_Tick(bool send_frame)
This is called every tick if this is a _network_server.
Definition: network_server.cpp:1833
ServerNetworkGameSocketHandler::Receive_CLIENT_COMMAND
NetworkRecvStatus Receive_CLIENT_COMMAND(Packet *p) override
The client has done a command and wants us to handle it.
Definition: network_server.cpp:1116
NetworkAddress
Wrapper for (un)resolved network addresses; there's no reason to transform a numeric IP to a string a...
Definition: address.h:29
Pool
Base class for all pools.
Definition: pool_type.hpp:81
ServerNetworkGameSocketHandler::Receive_CLIENT_SET_NAME
NetworkRecvStatus Receive_CLIENT_SET_NAME(Packet *p) override
Gives the client a new name: string New name of the client.
Definition: network_server.cpp:1453
ServerNetworkGameSocketHandler::SendNewGame
NetworkRecvStatus SendNewGame()
Tell the client we're starting a new game.
Definition: network_server.cpp:832
NetworkRecvStatus
NetworkRecvStatus
Status of a network client; reasons why a client has quit.
Definition: core.h:22
ServerNetworkGameSocketHandler::SendChat
NetworkRecvStatus SendChat(NetworkAction action, ClientID client_id, bool self_send, const char *msg, int64 data)
Send a chat message.
Definition: network_server.cpp:777
ServerNetworkGameSocketHandler::STATUS_NEWGRFS_CHECK
@ STATUS_NEWGRFS_CHECK
The client is checking NewGRFs.
Definition: network_server.h:55
ServerNetworkGameSocketHandler::AllowConnection
static bool AllowConnection()
Whether an connection is allowed or not at this moment.
Definition: network_server.cpp:318
ServerNetworkGameSocketHandler::Receive_CLIENT_GETMAP
NetworkRecvStatus Receive_CLIENT_GETMAP(Packet *p) override
Request the map from the server.
Definition: network_server.cpp:1049
network_internal.h
ServerNetworkGameSocketHandler::SendMap
NetworkRecvStatus SendMap()
This sends the map to the client.
Definition: network_server.cpp:621
ServerNetworkGameSocketHandler::SendNewGRFCheck
NetworkRecvStatus SendNewGRFCheck()
Send the check for the NewGRFs.
Definition: network_server.cpp:494
ServerNetworkGameSocketHandler::STATUS_AUTH_COMPANY
@ STATUS_AUTH_COMPANY
The client is authorizing with company password.
Definition: network_server.h:57
ServerNetworkGameSocketHandler::SendNeedGamePassword
NetworkRecvStatus SendNeedGamePassword()
Request the game password.
Definition: network_server.cpp:514
error
void CDECL error(const char *s,...)
Error handling for fatal non-user errors.
Definition: openttd.cpp:132
NetworkGameSocketHandler::client_id
ClientID client_id
Client identifier.
Definition: tcp_game.h:535
ServerNetworkGameSocketHandler::Receive_CLIENT_ACK
NetworkRecvStatus Receive_CLIENT_ACK(Packet *p) override
Tell the server we are done with this frame: uint32 Current frame counter of the client.
Definition: network_server.cpp:1239
NetworkClientSocketPool
Pool< NetworkClientSocket, ClientIndex, 8, MAX_CLIENT_SLOTS, PT_NCLIENT > NetworkClientSocketPool
Pool with all client sockets.
Definition: network_server.h:20
ServerNetworkGameSocketHandler::STATUS_END
@ STATUS_END
Must ALWAYS be on the end of this list!! (period).
Definition: network_server.h:64
ServerNetworkGameSocketHandler::ServerNetworkGameSocketHandler
ServerNetworkGameSocketHandler(SOCKET s)
Create a new socket for the server side of the game connection.
Definition: network_server.cpp:218
ServerNetworkGameSocketHandler::Receive_CLIENT_RCON
NetworkRecvStatus Receive_CLIENT_RCON(Packet *p) override
Send an RCon command to the server: string RCon password.
Definition: network_server.cpp:1479
ServerNetworkGameSocketHandler::client_address
NetworkAddress client_address
IP-address of the client (so he can be banned)
Definition: network_server.h:75
NetworkClientSocket
ServerNetworkGameSocketHandler NetworkClientSocket
Make the code look slightly nicer/simpler.
Definition: network_server.h:16
ServerNetworkGameSocketHandler::Receive_CLIENT_CHAT
NetworkRecvStatus Receive_CLIENT_CHAT(Packet *p) override
Sends a chat-packet to the server: uint8 ID of the action (see NetworkAction).
Definition: network_server.cpp:1407
ServerNetworkGameSocketHandler::Receive_CLIENT_GAME_PASSWORD
NetworkRecvStatus Receive_CLIENT_GAME_PASSWORD(Packet *p) override
Send a password to the server to authorize: uint8 Password type (see NetworkPasswordType).
Definition: network_server.cpp:1002
ServerNetworkGameSocketHandler::SendShutdown
NetworkRecvStatus SendShutdown()
Tell the client we're shutting down.
Definition: network_server.cpp:824
ServerNetworkGameSocketHandler::last_token
byte last_token
The last random token we did send to verify the client is listening.
Definition: network_server.h:68
ServerNetworkGameSocketHandler::SendError
NetworkRecvStatus SendError(NetworkErrorCode error, const char *reason=nullptr)
Send an error to the client, and close its connection.
Definition: network_server.cpp:447
ServerNetworkGameSocketHandler::SendCompanyInfo
NetworkRecvStatus SendCompanyInfo()
Send the client information about the companies.
Definition: network_server.cpp:382
ServerNetworkGameSocketHandler::outgoing_queue
CommandQueue outgoing_queue
The command-queue awaiting delivery.
Definition: network_server.h:71
ServerNetworkGameSocketHandler::SendNeedCompanyPassword
NetworkRecvStatus SendNeedCompanyPassword()
Request the company password.
Definition: network_server.cpp:529
Pool::PoolItem
Base class for all PoolItems.
Definition: pool_type.hpp:226
_networkclientsocket_pool
NetworkClientSocketPool _networkclientsocket_pool
Make very sure the preconditions given in network_type.h are actually followed.
ServerNetworkGameSocketHandler::GetClientName
void GetClientName(char *client_name, const char *last) const
Get the name of the client, if the user did not send it yet, Client ID is used.
Definition: network_server.cpp:2183
NetworkErrorCode
NetworkErrorCode
The error codes we send around in the protocols.
Definition: network_type.h:110
NetworkClientInfo
Container for all information known about a client.
Definition: network_base.h:24
ServerNetworkGameSocketHandler::CloseConnection
NetworkRecvStatus CloseConnection(NetworkRecvStatus status) override
Close the network connection due to the given status.
Definition: network_server.cpp:257
ServerNetworkGameSocketHandler::STATUS_AUTH_GAME
@ STATUS_AUTH_GAME
The client is authorizing with game (server) password.
Definition: network_server.h:56
ServerNetworkGameSocketHandler::SendWait
NetworkRecvStatus SendWait()
Tell the client that its put in a waiting queue.
Definition: network_server.cpp:576
ServerNetworkGameSocketHandler::STATUS_AUTHORIZED
@ STATUS_AUTHORIZED
The client is authorized.
Definition: network_server.h:58
ServerNetworkGameSocketHandler::Receive_CLIENT_ERROR
NetworkRecvStatus Receive_CLIENT_ERROR(Packet *p) override
The client made an error and is quitting the game.
Definition: network_server.cpp:1180