1 (* Copyright (C) Doom 2D: Forever Developers
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, version 3 of the License ONLY.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 {$INCLUDE ../shared/a_modes.inc}
21 e_log
, e_msg
, ENet
, Classes
, md5
, MAPDEF
{$IFDEF USE_MINIUPNPC}, miniupnpc
;{$ELSE};{$ENDIF}
24 NET_PROTOCOL_VER
= 182;
30 NET_CHAN_IMPORTANT
= 1;
33 NET_CHAN_PLAYERPOS
= 4;
35 NET_CHAN_MONSTERPOS
= 6;
36 NET_CHAN_LARGEDATA
= 7;
38 NET_CHAN_DOWNLOAD
= 9;
40 NET_CHAN_DOWNLOAD_EX
= 11;
47 NET_PING_PORT
= $DF2D;
54 NET_DISC_NONE
: enet_uint32
= 0;
55 NET_DISC_PROTOCOL
: enet_uint32
= 1;
56 NET_DISC_VERSION
: enet_uint32
= 2;
57 NET_DISC_FULL
: enet_uint32
= 3;
58 NET_DISC_KICK
: enet_uint32
= 4;
59 NET_DISC_DOWN
: enet_uint32
= 5;
60 NET_DISC_PASSWORD
: enet_uint32
= 6;
61 NET_DISC_TEMPBAN
: enet_uint32
= 7;
62 NET_DISC_BAN
: enet_uint32
= 8;
63 NET_DISC_MAX
: enet_uint32
= 8;
64 NET_DISC_FILE_TIMEOUT
: enet_uint32
= 13;
70 NET_CONNECT_TIMEOUT
= 1000 * 10;
72 BANLIST_FILENAME
= 'banlist.txt';
73 NETDUMP_FILENAME
= 'netdump';
82 TNetMapResourceInfo
= record
83 wadName
: AnsiString; // wad file name, without a path
84 size
: Integer; // wad file size (-1: size and hash are not known)
85 hash
: TMD5Digest
; // wad hash
88 TNetMapResourceInfoArray
= array of TNetMapResourceInfo
;
90 TNetFileTransfer
= record
94 size
: Integer; // file size in bytes
96 lastSentChunk
: Integer;
97 lastAckChunk
: Integer;
98 lastAckTime
: Int64; // msecs; if not "in progress", we're waiting for the first ack
100 diskBuffer
: PChar; // of `chunkSize` bytes
110 RequestedFullUpdate
: Boolean;
113 Transfer
: TNetFileTransfer
; // only one transfer may be active
114 NetOut
: array [0..1] of TMsg
;
120 pTNetClient
= ^TNetClient
;
122 AByte
= array of Byte;
125 NetInitDone
: Boolean = False;
126 NetMode
: Byte = NET_NONE
;
127 NetDump
: Boolean = False;
129 NetServerName
: string = 'Unnamed Server';
130 NetPassword
: string = '';
131 NetPort
: Word = 25666;
133 NetAllowRCON
: Boolean = False;
134 NetRCONPassword
: string = '';
136 NetTimeToUpdate
: Cardinal = 0;
137 NetTimeToReliable
: Cardinal = 0;
138 NetTimeToMaster
: Cardinal = 0;
140 NetHost
: pENetHost
= nil;
141 NetPeer
: pENetPeer
= nil;
143 NetAddr
: ENetAddress
;
145 NetPongAddr
: ENetAddress
;
146 NetPongSock
: ENetSocket
= ENET_SOCKET_NULL
;
148 NetUseMaster
: Boolean = True;
149 NetSlistAddr
: ENetAddress
;
150 NetSlistIP
: string = 'mpms.doom2d.org';
151 NetSlistPort
: Word = 25665;
153 NetClientIP
: string = '127.0.0.1';
154 NetClientPort
: Word = 25666;
157 NetBuf
: array [0..1] of TMsg
;
159 NetClients
: array of TNetClient
;
160 NetClientCount
: Byte = 0;
161 NetMaxClients
: Byte = 255;
162 NetBannedHosts
: array of TBanRecord
;
164 NetState
: Integer = NET_STATE_NONE
;
166 NetMyID
: Integer = -1;
167 NetPlrUID1
: Integer = -1;
168 NetPlrUID2
: Integer = -1;
170 NetInterpLevel
: Integer = 1;
171 NetUpdateRate
: Cardinal = 0; // as soon as possible
172 NetRelupdRate
: Cardinal = 18; // around two times a second
173 NetMasterRate
: Cardinal = 60000;
175 NetForcePlayerUpdate
: Boolean = False;
176 NetPredictSelf
: Boolean = True;
177 NetForwardPorts
: Boolean = False;
179 NetGotEverything
: Boolean = False;
180 NetGotKeys
: Boolean = False;
182 {$IFDEF USE_MINIUPNPC}
183 NetPortForwarded
: Word = 0;
184 NetPongForwarded
: Boolean = False;
185 NetIGDControl
: AnsiString;
186 NetIGDService
: TURLStr
;
189 NetPortThread
: TThreadID
= NilThreadId
;
191 NetDumpFile
: TStream
;
193 g_Res_received_map_start
: Integer = 0; // set if we received "map change" event
196 function g_Net_Init(): Boolean;
197 procedure g_Net_Cleanup();
198 procedure g_Net_Free();
199 procedure g_Net_Flush();
201 function g_Net_Host(IPAddr
: LongWord; Port
: enet_uint16
; MaxClients
: Cardinal = 16): Boolean;
202 procedure g_Net_Host_Die();
203 procedure g_Net_Host_Send(ID
: Integer; Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
204 function g_Net_Host_Update(): enet_size_t
;
206 function g_Net_Connect(IP
: string; Port
: enet_uint16
): Boolean;
207 procedure g_Net_Disconnect(Forced
: Boolean = False);
208 procedure g_Net_Client_Send(Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
209 function g_Net_Client_Update(): enet_size_t
;
210 function g_Net_Client_UpdateWhileLoading(): enet_size_t
;
212 function g_Net_Client_ByName(Name
: string): pTNetClient
;
213 function g_Net_Client_ByPlayer(PID
: Word): pTNetClient
;
214 function g_Net_ClientName_ByID(ID
: Integer): string;
216 procedure g_Net_SendData(Data
: AByte
; peer
: pENetPeer
; Reliable
: Boolean; Chan
: Byte = NET_CHAN_DOWNLOAD
);
217 //function g_Net_Wait_Event(msgId: Word): TMemoryStream;
218 //function g_Net_Wait_FileInfo (var tf: TNetFileTransfer; asMap: Boolean; out resList: TStringList): Integer;
220 function IpToStr(IP
: LongWord): string;
221 function StrToIp(IPstr
: string; var IP
: LongWord): Boolean;
223 function g_Net_IsHostBanned(IP
: LongWord; Perm
: Boolean = False): Boolean;
224 procedure g_Net_BanHost(IP
: LongWord; Perm
: Boolean = True); overload
;
225 procedure g_Net_BanHost(IP
: string; Perm
: Boolean = True); overload
;
226 function g_Net_UnbanHost(IP
: string): Boolean; overload
;
227 function g_Net_UnbanHost(IP
: LongWord): Boolean; overload
;
228 procedure g_Net_UnbanNonPermHosts();
229 procedure g_Net_SaveBanList();
231 procedure g_Net_DumpStart();
232 procedure g_Net_DumpSendBuffer();
233 procedure g_Net_DumpRecvBuffer(Buf
: penet_uint8
; Len
: LongWord);
234 procedure g_Net_DumpEnd();
236 function g_Net_ForwardPorts(ForwardPongPort
: Boolean = True): Boolean;
237 procedure g_Net_UnforwardPorts();
239 function g_Net_UserRequestExit
: Boolean;
241 function g_Net_Wait_MapInfo (var tf
: TNetFileTransfer
; var resList
: TNetMapResourceInfoArray
): Integer;
242 function g_Net_RequestResFileInfo (resIndex
: LongInt; out tf
: TNetFileTransfer
): Integer;
243 function g_Net_AbortResTransfer (var tf
: TNetFileTransfer
): Boolean;
244 function g_Net_ReceiveResourceFile (resIndex
: LongInt; var tf
: TNetFileTransfer
; strm
: TStream
): Integer;
251 e_input
, g_nethandler
, g_netmsg
, g_netmaster
, g_player
, g_window
, g_console
,
252 g_main
, g_game
, g_language
, g_weapons
, utils
, ctypes
,
256 FILE_CHUNK_SIZE
= 8192;
259 g_Net_DownloadTimeout
: Single;
263 //**************************************************************************
267 //**************************************************************************
269 procedure clearNetClientTransfers (var nc
: TNetClient
);
271 nc
.Transfer
.stream
.Free
;
272 nc
.Transfer
.diskName
:= ''; // just in case
273 if (nc
.Transfer
.diskBuffer
<> nil) then FreeMem(nc
.Transfer
.diskBuffer
);
274 nc
.Transfer
.stream
:= nil;
275 nc
.Transfer
.diskBuffer
:= nil;
279 procedure clearNetClient (var nc
: TNetClient
);
281 clearNetClientTransfers(nc
);
285 procedure clearNetClients (clearArray
: Boolean);
289 for f
:= Low(NetClients
) to High(NetClients
) do clearNetClient(NetClients
[f
]);
290 if (clearArray
) then SetLength(NetClients
, 0);
294 function g_Net_UserRequestExit (): Boolean;
296 Result
:= {e_KeyPressed(IK_SPACE) or}
297 e_KeyPressed(IK_ESCAPE
) or
298 e_KeyPressed(VK_ESCAPE
) or
299 e_KeyPressed(JOY0_JUMP
) or
300 e_KeyPressed(JOY1_JUMP
) or
301 e_KeyPressed(JOY2_JUMP
) or
302 e_KeyPressed(JOY3_JUMP
)
306 //**************************************************************************
308 // file transfer declaraions and host packet processor
310 //**************************************************************************
313 // server packet type
314 NTF_SERVER_DONE
= 10; // done with this file
315 NTF_SERVER_FILE_INFO
= 11; // sent after client request
316 NTF_SERVER_CHUNK
= 12; // next chunk; chunk number follows
317 NTF_SERVER_ABORT
= 13; // server abort
318 NTF_SERVER_MAP_INFO
= 14;
320 // client packet type
321 NTF_CLIENT_MAP_REQUEST
= 100; // map file request; also, returns list of additional wads to download
322 NTF_CLIENT_FILE_REQUEST
= 101; // resource file request (by index)
323 NTF_CLIENT_ABORT
= 102; // do not send requested file, or abort current transfer
324 NTF_CLIENT_START
= 103; // start transfer; client may resume download by sending non-zero starting chunk
325 NTF_CLIENT_ACK
= 104; // chunk ack; chunk number follows
328 // disconnect client due to some file transfer error
329 procedure killClientByFT (var nc
: TNetClient
);
331 e_LogWritefln('disconnected client #%d due to file transfer error', [nc
.ID
], TMsgType
.Warning
);
332 enet_peer_disconnect(nc
.Peer
, NET_DISC_FILE_TIMEOUT
);
333 clearNetClientTransfers(nc
);
337 // send file transfer message from server to client
338 function ftransSendServerMsg (var nc
: TNetClient
; var m
: TMsg
): Boolean;
343 if (m
.CurSize
< 1) then exit
;
344 pkt
:= enet_packet_create(m
.Data
, m
.CurSize
, ENET_PACKET_FLAG_RELIABLE
);
345 if not Assigned(pkt
) then begin killClientByFT(nc
); exit
; end;
346 if (enet_peer_send(nc
.Peer
, NET_CHAN_DOWNLOAD_EX
, pkt
) <> 0) then begin killClientByFT(nc
); exit
; end;
351 // send file transfer message from client to server
352 function ftransSendClientMsg (var m
: TMsg
): Boolean;
357 if (m
.CurSize
< 1) then exit
;
358 pkt
:= enet_packet_create(m
.Data
, m
.CurSize
, ENET_PACKET_FLAG_RELIABLE
);
359 if not Assigned(pkt
) then exit
;
360 if (enet_peer_send(NetPeer
, NET_CHAN_DOWNLOAD_EX
, pkt
) <> 0) then exit
;
366 procedure ProcessChunkSend (var nc
: TNetClient
);
368 tf
: ^TNetFileTransfer
;
374 if (tf
.stream
= nil) then exit
;
376 // arbitrary timeout number
377 if (ct
-tf
.lastAckTime
>= 5000) then
382 // check if we need to send something
383 if (not tf
.inProgress
) then exit
; // waiting for the initial ack
384 // ok, we're sending chunks
385 if (tf
.lastAckChunk
<> tf
.lastSentChunk
) then exit
;
386 Inc(tf
.lastSentChunk
);
387 // do it one chunk at a time; client ack will advance our chunk counter
388 chunks
:= (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
;
390 if (tf
.lastSentChunk
> chunks
) then
397 if (tf
.lastSentChunk
= chunks
) then
399 // we're done with this file
400 e_LogWritefln('download: client #%d, DONE sending chunks #%d/#%d', [nc
.ID
, tf
.lastSentChunk
, chunks
]);
401 trans_omsg
.Write(Byte(NTF_SERVER_DONE
));
402 clearNetClientTransfers(nc
);
407 trans_omsg
.Write(Byte(NTF_SERVER_CHUNK
));
408 trans_omsg
.Write(LongInt(tf
.lastSentChunk
));
410 rd
:= tf
.size
-(tf
.lastSentChunk
*tf
.chunkSize
);
411 if (rd
> tf
.chunkSize
) then rd
:= tf
.chunkSize
;
412 trans_omsg
.Write(LongInt(rd
));
413 //e_LogWritefln('download: client #%d, sending chunk #%d/#%d (%d bytes)', [nc.ID, tf.lastSentChunk, chunks, rd]);
414 //FIXME: check for errors here
416 tf
.stream
.Seek(tf
.lastSentChunk
*tf
.chunkSize
, soFromBeginning
);
417 tf
.stream
.ReadBuffer(tf
.diskBuffer
^, rd
);
418 trans_omsg
.WriteData(tf
.diskBuffer
, rd
);
425 ftransSendServerMsg(nc
, trans_omsg
);
429 // server file transfer packet processor
430 // received packet is in `NetEvent`
431 procedure ProcessDownloadExPacket ();
438 tf
: ^TNetFileTransfer
;
448 // find client index by peer
449 for f
:= Low(NetClients
) to High(NetClients
) do
451 if (not NetClients
[f
].Used
) then continue
;
452 if (NetClients
[f
].Peer
= NetEvent
.peer
) then
458 //e_LogWritefln('RECEIVE: dlpacket; client=%d (datalen=%u)', [nid, NetEvent.packet^.dataLength]);
460 if (nid
< 0) then exit
; // wtf?!
461 nc
:= @NetClients
[nid
];
463 if (NetEvent
.packet
^.dataLength
= 0) then
469 tf
:= @NetClients
[nid
].Transfer
;
470 tf
.lastAckTime
:= GetTimerMS();
472 cmd
:= Byte(NetEvent
.packet
^.data
^);
473 //e_LogWritefln('RECEIVE: nid=%d; cmd=%u', [nid, cmd]);
475 NTF_CLIENT_FILE_REQUEST
: // file request
477 if (tf
.stream
<> nil) then
482 if (NetEvent
.packet
^.dataLength
< 2) then
487 // new transfer request; build packet
488 if not msg
.Init(NetEvent
.packet
^.data
+1, NetEvent
.packet
^.dataLength
-1, True) then
493 // get resource index
494 ridx
:= msg
.ReadLongInt();
495 if (ridx
< -1) or (ridx
>= length(gExternalResources
)) then
497 e_LogWritefln('Invalid resource index %d', [ridx
], TMsgType
.Warning
);
501 if (ridx
< 0) then fname
:= MapsDir
+gGameSettings
.WAD
else fname
:= {GameDir+'/wads/'+}gExternalResources
[ridx
].diskName
;
502 if (length(fname
) = 0) then
504 e_WriteLog('Invalid filename: '+fname
, TMsgType
.Warning
);
508 tf
.diskName
:= findDiskWad(fname
);
509 //if (length(tf.diskName) = 0) then tf.diskName := findDiskWad(GameDir+'/wads/'+fname);
510 if (length(tf
.diskName
) = 0) then
512 e_LogWritefln('NETWORK: file "%s" not found!', [fname
], TMsgType
.Fatal
);
517 //tf.hash := MD5File(tf.diskName);
518 if (ridx
< 0) then tf
.hash
:= gWADHash
else tf
.hash
:= gExternalResources
[ridx
].hash
;
519 // create file stream
520 tf
.diskName
:= findDiskWad(fname
);
522 tf
.stream
:= openDiskFileRO(tf
.diskName
);
526 if (tf
.stream
= nil) then
528 e_WriteLog(Format('NETWORK: file "%s" not found!', [fname
]), TMsgType
.Fatal
);
532 e_LogWritefln('client #%d requested resource #%d (file is `%s` : `%s`)', [nc
.ID
, ridx
, fname
, tf
.diskName
]);
533 tf
.size
:= tf
.stream
.size
;
534 tf
.chunkSize
:= FILE_CHUNK_SIZE
; // arbitrary
535 tf
.lastSentChunk
:= -1;
536 tf
.lastAckChunk
:= -1;
537 tf
.lastAckTime
:= GetTimerMS();
538 tf
.inProgress
:= False; // waiting for the first ACK or for the cancel
539 GetMem(tf
.diskBuffer
, tf
.chunkSize
);
540 // sent file info message
542 trans_omsg
.Write(Byte(NTF_SERVER_FILE_INFO
));
543 trans_omsg
.Write(tf
.hash
);
544 trans_omsg
.Write(tf
.size
);
545 trans_omsg
.Write(tf
.chunkSize
);
546 trans_omsg
.Write(ExtractFileName(fname
));
547 if not ftransSendServerMsg(nc
^, trans_omsg
) then exit
;
549 NTF_CLIENT_ABORT
: // do not send requested file, or abort current transfer
551 e_LogWritefln('client #%d aborted file transfer', [nc
.ID
]);
552 clearNetClientTransfers(nc
^);
554 NTF_CLIENT_START
: // start transfer; client may resume download by sending non-zero starting chunk
556 if not Assigned(tf
.stream
) then
561 if (tf
.lastSentChunk
<> -1) or (tf
.lastAckChunk
<> -1) or (tf
.inProgress
) then
563 // double ack, get lost
567 if (NetEvent
.packet
^.dataLength
< 2) then
573 if not msg
.Init(NetEvent
.packet
^.data
+1, NetEvent
.packet
^.dataLength
-1, True) then
578 chunk
:= msg
.ReadLongInt();
579 if (chunk
< 0) or (chunk
> (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
) then
584 e_LogWritefln('client #%d started file transfer from chunk %d', [nc
.ID
, chunk
]);
585 // start sending chunks
586 tf
.inProgress
:= True;
587 tf
.lastSentChunk
:= chunk
-1;
588 tf
.lastAckChunk
:= chunk
-1;
589 ProcessChunkSend(nc
^);
591 NTF_CLIENT_ACK
: // chunk ack; chunk number follows
593 if not Assigned(tf
.stream
) then
598 if (tf
.lastSentChunk
< 0) or (not tf
.inProgress
) then
600 // double ack, get lost
604 if (NetEvent
.packet
^.dataLength
< 2) then
610 if not msg
.Init(NetEvent
.packet
^.data
+1, NetEvent
.packet
^.dataLength
-1, True) then
615 chunk
:= msg
.ReadLongInt();
616 if (chunk
< 0) or (chunk
> (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
) then
621 // do it this way, so client may seek, or request retransfers for some reason
622 tf
.lastAckChunk
:= chunk
;
623 tf
.lastSentChunk
:= chunk
;
624 //e_LogWritefln('client #%d acked file transfer chunk %d', [nc.ID, chunk]);
625 ProcessChunkSend(nc
^);
627 NTF_CLIENT_MAP_REQUEST
:
629 e_LogWritefln('client #%d requested map info', [nc
.ID
]);
631 dfn
:= findDiskWad(MapsDir
+gGameSettings
.WAD
);
632 if (dfn
= '') then dfn
:= '!wad_not_found!.wad'; //FIXME
633 //md5 := MD5File(dfn);
635 if (not GetDiskFileInfo(dfn
, fi
)) then
637 e_LogWritefln('client #%d requested map info, but i cannot get file info', [nc
.ID
]);
643 st := openDiskFileRO(dfn);
644 if not assigned(st) then exit; //wtf?!
649 trans_omsg
.Write(Byte(NTF_SERVER_MAP_INFO
));
651 trans_omsg
.Write(gGameSettings
.WAD
);
653 trans_omsg
.Write(md5
);
655 trans_omsg
.Write(size
);
656 // number of external resources for map
657 trans_omsg
.Write(LongInt(length(gExternalResources
)));
658 // external resource names
659 for f
:= 0 to High(gExternalResources
) do
662 //trans_omsg.Write(ExtractFileName(gExternalResources[f])); // GameDir+'/wads/'+ResList.Strings[i]
664 trans_omsg
.Write('!');
665 trans_omsg
.Write(LongInt(gExternalResources
[f
].size
));
666 trans_omsg
.Write(gExternalResources
[f
].hash
);
667 trans_omsg
.Write(ExtractFileName(gExternalResources
[f
].diskName
));
670 if not ftransSendServerMsg(nc
^, trans_omsg
) then exit
;
681 //**************************************************************************
683 // file transfer crap (both client and server)
685 //**************************************************************************
687 function getNewTimeoutEnd (): Int64;
689 result
:= GetTimerMS();
690 if (g_Net_DownloadTimeout
<= 0) then
692 result
:= result
+1000*60*3; // 3 minutes
696 result
:= result
+trunc(g_Net_DownloadTimeout
*1000);
701 // send map request to server, and wait for "map info" server reply
703 // returns `false` on error or user abort
705 // diskName: map wad file name (without a path)
706 // hash: map wad hash
707 // size: map wad size
708 // chunkSize: set too
709 // resList: list of resource wads
715 // for maps, first `tf.diskName` name will be map wad name, and `tf.hash`/`tf.size` will contain map info
716 function g_Net_Wait_MapInfo (var tf
: TNetFileTransfer
; var resList
: TNetMapResourceInfoArray
): Integer;
722 freePacket
: Boolean = false;
727 ri
: ^TNetMapResourceInfo
;
729 SetLength(resList
, 0);
733 trans_omsg
.Write(Byte(NTF_CLIENT_MAP_REQUEST
));
734 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
736 FillChar(ev
, SizeOf(ev
), 0);
739 ett
:= getNewTimeoutEnd();
741 status
:= enet_host_service(NetHost
, @ev
, 300);
744 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' network error', True);
754 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' timeout reached', True);
763 ENET_EVENT_TYPE_RECEIVE
:
766 if (ev
.channelID
<> NET_CHAN_DOWNLOAD_EX
) then
768 //e_LogWritefln('g_Net_Wait_MapInfo: skip message from non-transfer channel', []);
770 g_Net_Client_HandlePacket(ev
.packet
, g_Net_ClientLightMsgHandler
);
771 if (g_Res_received_map_start
< 0) then begin result
:= -666; exit
; end;
775 ett
:= getNewTimeoutEnd();
776 if (ev
.packet
.dataLength
< 1) then
778 e_LogWritefln('g_Net_Wait_MapInfo: invalid server packet (no data)', []);
782 Ptr
:= ev
.packet
^.data
;
783 rMsgId
:= Byte(Ptr
^);
784 e_LogWritefln('g_Net_Wait_MapInfo: got message %u from server (dataLength=%u)', [rMsgId
, ev
.packet
^.dataLength
]);
785 if (rMsgId
= NTF_SERVER_FILE_INFO
) then
787 e_LogWritefln('g_Net_Wait_MapInfo: waiting for map info reply, but got file info reply', []);
791 else if (rMsgId
= NTF_SERVER_ABORT
) then
793 e_LogWritefln('g_Net_Wait_MapInfo: server aborted transfer', []);
797 else if (rMsgId
= NTF_SERVER_MAP_INFO
) then
799 e_LogWritefln('g_Net_Wait_MapInfo: creating map info packet...', []);
800 if not msg
.Init(ev
.packet
^.data
+1, ev
.packet
^.dataLength
-1, True) then exit
;
801 e_LogWritefln('g_Net_Wait_MapInfo: parsing map info packet (rd=%d; max=%d)...', [msg
.ReadCount
, msg
.MaxSize
]);
802 SetLength(resList
, 0); // just in case
804 tf
.diskName
:= msg
.ReadString();
805 e_LogWritefln('g_Net_Wait_MapInfo: map wad is `%s`', [tf
.diskName
]);
807 tf
.hash
:= msg
.ReadMD5();
809 tf
.size
:= msg
.ReadLongInt();
810 e_LogWritefln('g_Net_Wait_MapInfo: map wad size is %d', [tf
.size
]);
811 // number of external resources for map
812 rc
:= msg
.ReadLongInt();
813 if (rc
< 0) or (rc
> 1024) then
815 e_LogWritefln('g_Net_Wait_Event: invalid number of map external resources (%d)', [rc
]);
819 e_LogWritefln('g_Net_Wait_MapInfo: map external resource count is %d', [rc
]);
820 SetLength(resList
, rc
);
821 // external resource names
822 for f
:= 0 to rc
-1 do
825 s
:= msg
.ReadString();
826 if (length(s
) = 0) then begin result
:= -1; exit
; end;
830 ri
.size
:= msg
.ReadLongInt();
831 ri
.hash
:= msg
.ReadMD5();
832 ri
.wadName
:= ExtractFileName(msg
.ReadString());
833 if (length(ri
.wadName
) = 0) or (ri
.size
< 0) then begin result
:= -1; exit
; end;
837 // old-style packet, only name
838 ri
.wadName
:= ExtractFileName(s
);
839 if (length(ri
.wadName
) = 0) then begin result
:= -1; exit
; end;
840 ri
.size
:= -1; // unknown
843 e_LogWritefln('g_Net_Wait_MapInfo: got map info', []);
844 Result
:= 0; // success
849 e_LogWritefln('g_Net_Wait_Event: invalid server packet type', []);
855 ENET_EVENT_TYPE_DISCONNECT
:
857 if (ev
.data
<= NET_DISC_MAX
) then
858 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' ' + _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + ev
.data
)], True);
864 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' unknown ENet event ' + IntToStr(Ord(ev
.kind
)), True);
869 if (freePacket
) then begin freePacket
:= false; enet_packet_destroy(ev
.packet
); end;
872 if g_Net_UserRequestExit() then
874 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' user abort', True);
880 if (freePacket
) then enet_packet_destroy(ev
.packet
);
885 // send file request to server, and wait for server reply
887 // returns `false` on error or user abort
889 // diskName (actually, base name)
898 // for maps, first `tf.diskName` name will be map wad name, and `tf.hash`/`tf.size` will contain map info
899 function g_Net_RequestResFileInfo (resIndex
: LongInt; out tf
: TNetFileTransfer
): Integer;
905 freePacket
: Boolean = false;
911 trans_omsg
.Write(Byte(NTF_CLIENT_FILE_REQUEST
));
912 trans_omsg
.Write(resIndex
);
913 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
915 FillChar(ev
, SizeOf(ev
), 0);
918 ett
:= getNewTimeoutEnd();
920 status
:= enet_host_service(NetHost
, @ev
, 300);
923 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' network error', True);
933 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' timeout reached', True);
942 ENET_EVENT_TYPE_RECEIVE
:
945 if (ev
.channelID
<> NET_CHAN_DOWNLOAD_EX
) then
947 //e_LogWriteln('g_Net_Wait_Event: skip message from non-transfer channel');
949 g_Net_Client_HandlePacket(ev
.packet
, g_Net_ClientLightMsgHandler
);
950 if (g_Res_received_map_start
< 0) then begin result
:= -666; exit
; end;
954 ett
:= getNewTimeoutEnd();
955 if (ev
.packet
.dataLength
< 1) then
957 e_LogWriteln('g_Net_Wait_Event: invalid server packet (no data)');
961 Ptr
:= ev
.packet
^.data
;
962 rMsgId
:= Byte(Ptr
^);
963 e_LogWritefln('received transfer packet with id %d (%u bytes)', [rMsgId
, ev
.packet
^.dataLength
]);
964 if (rMsgId
= NTF_SERVER_FILE_INFO
) then
966 if not msg
.Init(ev
.packet
^.data
+1, ev
.packet
^.dataLength
-1, True) then exit
;
967 tf
.hash
:= msg
.ReadMD5();
968 tf
.size
:= msg
.ReadLongInt();
969 tf
.chunkSize
:= msg
.ReadLongInt();
970 tf
.diskName
:= ExtractFileName(msg
.readString());
971 if (tf
.size
< 0) or (tf
.chunkSize
<> FILE_CHUNK_SIZE
) or (length(tf
.diskName
) = 0) then
973 e_LogWritefln('g_Net_RequestResFileInfo: invalid file info packet', []);
977 e_LogWritefln('got file info for resource #%d: size=%d; name=%s', [resIndex
, tf
.size
, tf
.diskName
]);
978 Result
:= 0; // success
981 else if (rMsgId
= NTF_SERVER_ABORT
) then
983 e_LogWriteln('g_Net_RequestResFileInfo: server aborted transfer');
987 else if (rMsgId
= NTF_SERVER_MAP_INFO
) then
989 e_LogWriteln('g_Net_RequestResFileInfo: waiting for map info reply, but got file info reply');
995 e_LogWriteln('g_Net_RequestResFileInfo: invalid server packet type');
1001 ENET_EVENT_TYPE_DISCONNECT
:
1003 if (ev
.data
<= NET_DISC_MAX
) then
1004 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' ' + _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + ev
.data
)], True);
1010 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' unknown ENet event ' + IntToStr(Ord(ev
.kind
)), True);
1015 if (freePacket
) then begin freePacket
:= false; enet_packet_destroy(ev
.packet
); end;
1018 if g_Net_UserRequestExit() then
1020 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' user abort', True);
1026 if (freePacket
) then enet_packet_destroy(ev
.packet
);
1031 // call this to cancel file transfer requested by `g_Net_RequestResFileInfo()`
1032 function g_Net_AbortResTransfer (var tf
: TNetFileTransfer
): Boolean;
1035 e_LogWritefln('aborting file transfer...', []);
1038 trans_omsg
.Write(Byte(NTF_CLIENT_ABORT
));
1039 result
:= ftransSendClientMsg(trans_omsg
);
1040 if result
then enet_host_flush(NetHost
);
1044 // call this to start file transfer requested by `g_Net_RequestResFileInfo()`
1046 // returns `false` on error or user abort
1055 // 2 on server abort
1056 // for maps, first `tf.diskName` name will be map wad name, and `tf.hash`/`tf.size` will contain map info
1057 function g_Net_ReceiveResourceFile (resIndex
: LongInt; var tf
: TNetFileTransfer
; strm
: TStream
): Integer;
1063 freePacket
: Boolean = false;
1066 nextChunk
: Integer = 0;
1067 chunkTotal
: Integer;
1074 tf
.resumed
:= false;
1075 e_LogWritefln('file `%s`, size=%d (%d)', [tf
.diskName
, Integer(strm
.size
), tf
.size
], TMsgType
.Notify
);
1076 // check if we should resume downloading
1077 resumed
:= (strm
.size
> tf
.chunkSize
) and (strm
.size
< tf
.size
);
1080 trans_omsg
.Write(Byte(NTF_CLIENT_START
));
1081 if resumed
then chunk
:= strm
.size
div tf
.chunkSize
else chunk
:= 0;
1082 trans_omsg
.Write(LongInt(chunk
));
1083 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
1085 strm
.Seek(chunk
*tf
.chunkSize
, soFromBeginning
);
1086 chunkTotal
:= (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
;
1087 e_LogWritefln('receiving file `%s` (%d chunks)', [tf
.diskName
, chunkTotal
], TMsgType
.Notify
);
1088 g_Game_SetLoadingText('downloading "'+ExtractFileName(tf
.diskName
)+'"', chunkTotal
, False);
1089 tf
.resumed
:= resumed
;
1091 if (chunk
> 0) then g_Game_StepLoading(chunk
);
1094 // wait for reply data
1095 FillChar(ev
, SizeOf(ev
), 0);
1097 GetMem(buf
, tf
.chunkSize
);
1099 ett
:= getNewTimeoutEnd();
1101 //stx := -GetTimerMS();
1102 status
:= enet_host_service(NetHost
, @ev
, 300);
1103 if (status
< 0) then
1105 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' network error', True);
1109 if (status
= 0) then
1111 // check for timeout
1115 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' timeout reached', True);
1124 ENET_EVENT_TYPE_RECEIVE
:
1127 if (ev
.channelID
<> NET_CHAN_DOWNLOAD_EX
) then
1129 //e_LogWritefln('g_Net_Wait_Event: skip message from non-transfer channel', []);
1130 freePacket
:= false;
1131 g_Net_Client_HandlePacket(ev
.packet
, g_Net_ClientLightMsgHandler
);
1132 if (g_Res_received_map_start
< 0) then begin result
:= -666; exit
; end;
1136 //stx := stx+GetTimerMS();
1137 //e_LogWritefln('g_Net_ReceiveResourceFile: stx=%d', [Integer(stx)]);
1138 //stx := -GetTimerMS();
1139 ett
:= getNewTimeoutEnd();
1140 if (ev
.packet
.dataLength
< 1) then
1142 e_LogWritefln('g_Net_ReceiveResourceFile: invalid server packet (no data)', []);
1146 Ptr
:= ev
.packet
^.data
;
1147 rMsgId
:= Byte(Ptr
^);
1148 if (rMsgId
= NTF_SERVER_DONE
) then
1150 e_LogWritefln('file transfer complete.', []);
1154 else if (rMsgId
= NTF_SERVER_CHUNK
) then
1156 if not msg
.Init(ev
.packet
^.data
+1, ev
.packet
^.dataLength
-1, True) then exit
;
1157 chunk
:= msg
.ReadLongInt();
1158 csize
:= msg
.ReadLongInt();
1159 if (chunk
<> nextChunk
) then
1161 e_LogWritefln('received chunk %d, but expected chunk %d', [chunk
, nextChunk
]);
1165 if (csize
< 0) or (csize
> tf
.chunkSize
) then
1167 e_LogWritefln('received chunk with size %d, but expected chunk size is %d', [csize
, tf
.chunkSize
]);
1171 //e_LogWritefln('got chunk #%d of #%d (csize=%d)', [chunk, (tf.size+tf.chunkSize-1) div tf.chunkSize, csize]);
1172 msg
.ReadData(buf
, csize
);
1173 strm
.WriteBuffer(buf
^, csize
);
1174 nextChunk
:= chunk
+1;
1175 g_Game_StepLoading();
1178 trans_omsg
.Write(Byte(NTF_CLIENT_ACK
));
1179 trans_omsg
.Write(LongInt(chunk
));
1180 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
1182 else if (rMsgId
= NTF_SERVER_ABORT
) then
1184 e_LogWritefln('g_Net_ReceiveResourceFile: server aborted transfer', []);
1190 e_LogWritefln('g_Net_ReceiveResourceFile: invalid server packet type', []);
1194 //stx := stx+GetTimerMS();
1195 //e_LogWritefln('g_Net_ReceiveResourceFile: process stx=%d', [Integer(stx)]);
1198 ENET_EVENT_TYPE_DISCONNECT
:
1200 if (ev
.data
<= NET_DISC_MAX
) then
1201 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' ' + _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + ev
.data
)], True);
1207 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' unknown ENet event ' + IntToStr(Ord(ev
.kind
)), True);
1212 if (freePacket
) then begin freePacket
:= false; enet_packet_destroy(ev
.packet
); end;
1215 if g_Net_UserRequestExit() then
1217 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' user abort', True);
1224 if (freePacket
) then enet_packet_destroy(ev
.packet
);
1229 //**************************************************************************
1233 //**************************************************************************
1235 function g_Net_FindSlot(): Integer;
1244 for I
:= Low(NetClients
) to High(NetClients
) do
1246 if NetClients
[I
].Used
then
1255 if C
>= NetMaxClients
then
1263 if (Length(NetClients
) >= NetMaxClients
) then
1267 SetLength(NetClients
, Length(NetClients
) + 1);
1268 N
:= High(NetClients
);
1274 NetClients
[N
].Used
:= True;
1275 NetClients
[N
].ID
:= N
;
1276 NetClients
[N
].RequestedFullUpdate
:= False;
1277 NetClients
[N
].RCONAuth
:= False;
1278 NetClients
[N
].Voted
:= False;
1279 NetClients
[N
].Player
:= 0;
1280 clearNetClientTransfers(NetClients
[N
]); // just in case
1286 function g_Net_Init(): Boolean;
1294 NetBuf
[NET_UNRELIABLE
].Clear();
1295 NetBuf
[NET_RELIABLE
].Clear();
1296 //SetLength(NetClients, 0);
1297 clearNetClients(true); // clear array
1303 NetAddr
.port
:= 25666;
1304 SetLength(NetBannedHosts
, 0);
1305 if FileExists(DataDir
+ BANLIST_FILENAME
) then
1307 Assign(F
, DataDir
+ BANLIST_FILENAME
);
1312 if StrToIp(IPstr
, IP
) then
1316 g_Net_SaveBanList();
1319 Result
:= (enet_initialize() = 0);
1322 procedure g_Net_Flush();
1326 F
, Chan
: enet_uint32
;
1330 Chan
:= NET_CHAN_GAME
;
1332 if NetMode
= NET_SERVER
then
1333 for T
:= NET_UNRELIABLE
to NET_RELIABLE
do
1335 if NetBuf
[T
].CurSize
> 0 then
1337 P
:= enet_packet_create(NetBuf
[T
].Data
, NetBuf
[T
].CurSize
, F
);
1338 if not Assigned(P
) then continue
;
1339 enet_host_broadcast(NetHost
, Chan
, P
);
1343 for I
:= Low(NetClients
) to High(NetClients
) do
1345 if not NetClients
[I
].Used
then continue
;
1346 if NetClients
[I
].NetOut
[T
].CurSize
<= 0 then continue
;
1347 P
:= enet_packet_create(NetClients
[I
].NetOut
[T
].Data
, NetClients
[I
].NetOut
[T
].CurSize
, F
);
1348 if not Assigned(P
) then continue
;
1349 enet_peer_send(NetClients
[I
].Peer
, Chan
, P
);
1350 NetClients
[I
].NetOut
[T
].Clear();
1353 // next and last iteration is always RELIABLE
1354 F
:= LongWord(ENET_PACKET_FLAG_RELIABLE
);
1355 Chan
:= NET_CHAN_IMPORTANT
;
1357 else if NetMode
= NET_CLIENT
then
1358 for T
:= NET_UNRELIABLE
to NET_RELIABLE
do
1360 if NetBuf
[T
].CurSize
> 0 then
1362 P
:= enet_packet_create(NetBuf
[T
].Data
, NetBuf
[T
].CurSize
, F
);
1363 if not Assigned(P
) then continue
;
1364 enet_peer_send(NetPeer
, Chan
, P
);
1367 // next and last iteration is always RELIABLE
1368 F
:= LongWord(ENET_PACKET_FLAG_RELIABLE
);
1369 Chan
:= NET_CHAN_IMPORTANT
;
1373 procedure g_Net_Cleanup();
1377 NetBuf
[NET_UNRELIABLE
].Clear();
1378 NetBuf
[NET_RELIABLE
].Clear();
1380 //SetLength(NetClients, 0);
1381 clearNetClients(true); // clear array
1382 NetClientCount
:= 0;
1386 g_Net_Slist_Disconnect(false); // do not spam console
1390 NetState
:= NET_STATE_NONE
;
1392 NetPongSock
:= ENET_SOCKET_NULL
;
1394 NetTimeToMaster
:= 0;
1395 NetTimeToUpdate
:= 0;
1396 NetTimeToReliable
:= 0;
1398 NetMode
:= NET_NONE
;
1400 if NetPortThread
<> NilThreadId
then
1401 WaitForThreadTerminate(NetPortThread
, 66666);
1403 NetPortThread
:= NilThreadId
;
1404 g_Net_UnforwardPorts();
1410 procedure g_Net_Free();
1414 enet_deinitialize();
1415 NetInitDone
:= False;
1419 //**************************************************************************
1423 //**************************************************************************
1425 function ForwardThread(Param
: Pointer): PtrInt
;
1428 if not g_Net_ForwardPorts() then Result
:= -1;
1431 function g_Net_Host(IPAddr
: LongWord; Port
: enet_uint16
; MaxClients
: Cardinal = 16): Boolean;
1433 if NetMode
<> NET_NONE
then
1435 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_INGAME
]);
1442 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_HOST
], [Port
]));
1443 if not NetInitDone
then
1445 if (not g_Net_Init()) then
1447 g_Console_Add(_lc
[I_NET_MSG_FERROR
] + _lc
[I_NET_ERR_ENET
]);
1452 NetInitDone
:= True;
1455 NetAddr
.host
:= IPAddr
;
1456 NetAddr
.port
:= Port
;
1458 if NetForwardPorts
then NetPortThread
:= BeginThread(ForwardThread
);
1460 NetHost
:= enet_host_create(@NetAddr
, NET_MAXCLIENTS
, NET_CHANS
, 0, 0);
1462 if (NetHost
= nil) then
1464 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + Format(_lc
[I_NET_ERR_HOST
], [Port
]));
1470 NetPongSock
:= enet_socket_create(ENET_SOCKET_TYPE_DATAGRAM
);
1471 if NetPongSock
<> ENET_SOCKET_NULL
then
1473 NetPongAddr
.host
:= IPAddr
;
1474 NetPongAddr
.port
:= NET_PING_PORT
;
1475 if enet_socket_bind(NetPongSock
, @NetPongAddr
) < 0 then
1477 enet_socket_destroy(NetPongSock
);
1478 NetPongSock
:= ENET_SOCKET_NULL
;
1481 enet_socket_set_option(NetPongSock
, ENET_SOCKOPT_NONBLOCK
, 1);
1484 NetMode
:= NET_SERVER
;
1486 NetBuf
[NET_UNRELIABLE
].Clear();
1487 NetBuf
[NET_RELIABLE
].Clear();
1493 procedure g_Net_Host_Die();
1497 if NetMode
<> NET_SERVER
then Exit
;
1499 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_DISCALL
]);
1500 for I
:= 0 to High(NetClients
) do
1501 if NetClients
[I
].Used
then
1502 enet_peer_disconnect(NetClients
[I
].Peer
, NET_DISC_DOWN
);
1504 while enet_host_service(NetHost
, @NetEvent
, 1000) > 0 do
1505 if NetEvent
.kind
= ENET_EVENT_TYPE_RECEIVE
then
1506 enet_packet_destroy(NetEvent
.packet
);
1508 for I
:= 0 to High(NetClients
) do
1509 if NetClients
[I
].Used
then
1511 FreeMemory(NetClients
[I
].Peer
^.data
);
1512 NetClients
[I
].Peer
^.data
:= nil;
1513 enet_peer_reset(NetClients
[I
].Peer
);
1514 NetClients
[I
].Peer
:= nil;
1515 NetClients
[I
].Used
:= False;
1516 NetClients
[I
].NetOut
[NET_UNRELIABLE
].Free();
1517 NetClients
[I
].NetOut
[NET_RELIABLE
].Free();
1520 clearNetClients(false); // don't clear array
1521 if (g_Net_Slist_IsConnectionActive
) then g_Net_Slist_Disconnect
;
1522 if NetPongSock
<> ENET_SOCKET_NULL
then
1523 enet_socket_destroy(NetPongSock
);
1525 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_DIE
]);
1526 enet_host_destroy(NetHost
);
1528 NetMode
:= NET_NONE
;
1531 e_WriteLog('NET: Server stopped', TMsgType
.Notify
);
1535 procedure g_Net_Host_Send(ID
: Integer; Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
1542 T
:= NET_UNRELIABLE
;
1546 if ID
> High(NetClients
) then Exit
;
1547 if NetClients
[ID
].Peer
= nil then Exit
;
1549 NetClients
[ID
].NetOut
[T
].Write(Integer(NetOut
.CurSize
));
1550 NetClients
[ID
].NetOut
[T
].Write(NetOut
);
1555 NetBuf
[T
].Write(Integer(NetOut
.CurSize
));
1556 NetBuf
[T
].Write(NetOut
);
1559 if NetDump
then g_Net_DumpSendBuffer();
1563 procedure g_Net_Host_CheckPings();
1565 ClAddr
: ENetAddress
;
1569 Ping
: array [0..9] of Byte;
1572 if NetPongSock
= ENET_SOCKET_NULL
then Exit
;
1574 Buf
.data
:= Addr(Ping
[0]);
1575 Buf
.dataLength
:= 2+8;
1579 Len
:= enet_socket_receive(NetPongSock
, @ClAddr
, @Buf
, 1);
1580 if Len
< 0 then Exit
;
1582 if (Ping
[0] = Ord('D')) and (Ping
[1] = Ord('F')) then
1584 ClTime
:= Int64(Addr(Ping
[2])^);
1587 NetOut
.Write(Byte(Ord('D')));
1588 NetOut
.Write(Byte(Ord('F')));
1589 NetOut
.Write(NetPort
);
1590 NetOut
.Write(ClTime
);
1591 g_Net_Slist_WriteInfo();
1593 if gPlayer1
<> nil then Inc(NPl
);
1594 if gPlayer2
<> nil then Inc(NPl
);
1596 NetOut
.Write(gNumBots
);
1598 Buf
.data
:= NetOut
.Data
;
1599 Buf
.dataLength
:= NetOut
.CurSize
;
1600 enet_socket_send(NetPongSock
, @ClAddr
, @Buf
, 1);
1607 function g_Net_Host_Update(): enet_size_t
;
1618 if NetUseMaster
then g_Net_Slist_Check
;
1619 g_Net_Host_CheckPings
;
1621 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1623 case (NetEvent
.kind
) of
1624 ENET_EVENT_TYPE_CONNECT
:
1626 IP
:= IpToStr(NetEvent
.Peer
^.address
.host
);
1627 Port
:= NetEvent
.Peer
^.address
.port
;
1628 g_Console_Add(_lc
[I_NET_MSG
] +
1629 Format(_lc
[I_NET_MSG_HOST_CONN
], [IP
, Port
]));
1631 if (NetEvent
.data
<> NET_PROTOCOL_VER
) then
1633 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_REJECT
] +
1634 _lc
[I_NET_DISC_PROTOCOL
]);
1635 NetEvent
.peer
^.data
:= GetMemory(SizeOf(Byte));
1636 Byte(NetEvent
.peer
^.data
^) := 255;
1637 enet_peer_disconnect(NetEvent
.peer
, NET_DISC_PROTOCOL
);
1638 enet_host_flush(NetHost
);
1642 ID
:= g_Net_FindSlot();
1646 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_REJECT
] +
1647 _lc
[I_NET_DISC_FULL
]);
1648 NetEvent
.Peer
^.data
:= GetMemory(SizeOf(Byte));
1649 Byte(NetEvent
.peer
^.data
^) := 255;
1650 enet_peer_disconnect(NetEvent
.peer
, NET_DISC_FULL
);
1651 enet_host_flush(NetHost
);
1655 NetClients
[ID
].Peer
:= NetEvent
.peer
;
1656 NetClients
[ID
].Peer
^.data
:= GetMemory(SizeOf(Byte));
1657 Byte(NetClients
[ID
].Peer
^.data
^) := ID
;
1658 NetClients
[ID
].State
:= NET_STATE_AUTH
;
1659 NetClients
[ID
].RCONAuth
:= False;
1660 NetClients
[ID
].NetOut
[NET_UNRELIABLE
].Alloc(NET_BUFSIZE
*2);
1661 NetClients
[ID
].NetOut
[NET_RELIABLE
].Alloc(NET_BUFSIZE
*2);
1662 clearNetClientTransfers(NetClients
[ID
]); // just in case
1664 enet_peer_timeout(NetEvent
.peer
, ENET_PEER_TIMEOUT_LIMIT
* 2, ENET_PEER_TIMEOUT_MINIMUM
* 2, ENET_PEER_TIMEOUT_MAXIMUM
* 2);
1666 Inc(NetClientCount
);
1667 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_HOST_ADD
], [ID
]));
1670 ENET_EVENT_TYPE_RECEIVE
:
1672 //e_LogWritefln('RECEIVE: chan=%u', [NetEvent.channelID]);
1673 if (NetEvent
.channelID
= NET_CHAN_DOWNLOAD_EX
) then
1675 ProcessDownloadExPacket();
1679 ID
:= Byte(NetEvent
.peer
^.data
^);
1680 if ID
> High(NetClients
) then Exit
;
1681 TC
:= @NetClients
[ID
];
1683 if NetDump
then g_Net_DumpRecvBuffer(NetEvent
.packet
^.data
, NetEvent
.packet
^.dataLength
);
1684 g_Net_Host_HandlePacket(TC
, NetEvent
.packet
, g_Net_HostMsgHandler
);
1688 ENET_EVENT_TYPE_DISCONNECT
:
1690 ID
:= Byte(NetEvent
.peer
^.data
^);
1691 if ID
> High(NetClients
) then Exit
;
1692 clearNetClient(NetClients
[ID
]);
1693 TC
:= @NetClients
[ID
];
1694 if TC
= nil then Exit
;
1696 if not (TC
^.Used
) then Exit
;
1698 TP
:= g_Player_Get(TC
^.Player
);
1703 TP
.Kill(K_SIMPLEKILL
, 0, HIT_DISCON
);
1704 g_Console_Add(Format(_lc
[I_PLAYER_LEAVE
], [TP
.Name
]), True);
1705 e_WriteLog('NET: Client ' + TP
.Name
+ ' [' + IntToStr(ID
) + '] disconnected.', TMsgType
.Notify
);
1706 g_Player_Remove(TP
.UID
);
1710 TC
^.State
:= NET_STATE_NONE
;
1713 TC
^.RequestedFullUpdate
:= False;
1714 TC
^.NetOut
[NET_UNRELIABLE
].Free();
1715 TC
^.NetOut
[NET_RELIABLE
].Free();
1717 FreeMemory(NetEvent
.peer
^.data
);
1718 NetEvent
.peer
^.data
:= nil;
1719 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_HOST_DISC
], [ID
]));
1720 Dec(NetClientCount
);
1722 if NetUseMaster
then g_Net_Slist_Update
;
1729 //**************************************************************************
1733 //**************************************************************************
1735 procedure g_Net_Disconnect(Forced
: Boolean = False);
1737 if NetMode
<> NET_CLIENT
then Exit
;
1738 if (NetHost
= nil) or (NetPeer
= nil) then Exit
;
1742 enet_peer_disconnect(NetPeer
, NET_DISC_NONE
);
1744 while (enet_host_service(NetHost
, @NetEvent
, 1500) > 0) do
1746 if (NetEvent
.kind
= ENET_EVENT_TYPE_DISCONNECT
) then
1752 if (NetEvent
.kind
= ENET_EVENT_TYPE_RECEIVE
) then
1753 enet_packet_destroy(NetEvent
.packet
);
1756 if NetPeer
<> nil then
1758 enet_peer_reset(NetPeer
);
1764 e_WriteLog('NET: Kicked from server: ' + IntToStr(NetEvent
.data
), TMsgType
.Notify
);
1765 if (NetEvent
.data
<= NET_DISC_MAX
) then
1766 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_KICK
] +
1767 _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + NetEvent
.data
)], True);
1770 if NetHost
<> nil then
1772 enet_host_destroy(NetHost
);
1775 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_CLIENT_DISC
]);
1778 e_WriteLog('NET: Disconnected', TMsgType
.Notify
);
1781 procedure g_Net_Client_Send(Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
1788 T
:= NET_UNRELIABLE
;
1791 NetBuf
[T
].Write(Integer(NetOut
.CurSize
));
1792 NetBuf
[T
].Write(NetOut
);
1794 if NetDump
then g_Net_DumpSendBuffer();
1796 g_Net_Flush(); // FIXME: for now, send immediately
1799 function g_Net_Client_Update(): enet_size_t
;
1802 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1804 case NetEvent
.kind
of
1805 ENET_EVENT_TYPE_RECEIVE
:
1807 if (NetEvent
.channelID
= NET_CHAN_DOWNLOAD_EX
) then continue
; // ignore all download packets, they're processed by separate code
1808 if NetDump
then g_Net_DumpRecvBuffer(NetEvent
.packet
^.data
, NetEvent
.packet
^.dataLength
);
1809 g_Net_Client_HandlePacket(NetEvent
.packet
, g_Net_ClientMsgHandler
);
1812 ENET_EVENT_TYPE_DISCONNECT
:
1814 g_Net_Disconnect(True);
1822 function g_Net_Client_UpdateWhileLoading(): enet_size_t
;
1825 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1827 case NetEvent
.kind
of
1828 ENET_EVENT_TYPE_RECEIVE
:
1830 if (NetEvent
.channelID
= NET_CHAN_DOWNLOAD_EX
) then continue
; // ignore all download packets, they're processed by separate code
1831 if NetDump
then g_Net_DumpRecvBuffer(NetEvent
.packet
^.data
, NetEvent
.packet
^.dataLength
);
1832 g_Net_Client_HandlePacket(NetEvent
.packet
, g_Net_ClientLightMsgHandler
);
1835 ENET_EVENT_TYPE_DISCONNECT
:
1837 g_Net_Disconnect(True);
1846 function g_Net_Connect(IP
: string; Port
: enet_uint16
): Boolean;
1849 TimeoutTime
, T
: Int64;
1851 if NetMode
<> NET_NONE
then
1853 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_ERR_INGAME
], True);
1860 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_CLIENT_CONN
],
1862 if not NetInitDone
then
1864 if (not g_Net_Init()) then
1866 g_Console_Add(_lc
[I_NET_MSG_FERROR
] + _lc
[I_NET_ERR_ENET
], True);
1871 NetInitDone
:= True;
1874 NetHost
:= enet_host_create(nil, 1, NET_CHANS
, 0, 0);
1876 if (NetHost
= nil) then
1878 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CLIENT
], True);
1884 enet_address_set_host(@NetAddr
, PChar(Addr(IP
[1])));
1885 NetAddr
.port
:= Port
;
1887 NetPeer
:= enet_host_connect(NetHost
, @NetAddr
, NET_CHANS
, NET_PROTOCOL_VER
);
1889 if (NetPeer
= nil) then
1891 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CLIENT
], True);
1892 enet_host_destroy(NetHost
);
1898 // предупредить что ждем слишком долго через N секунд
1899 TimeoutTime
:= GetTimer() + NET_CONNECT_TIMEOUT
;
1904 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1906 if (NetEvent
.kind
= ENET_EVENT_TYPE_CONNECT
) then
1908 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_CLIENT_DONE
]);
1909 NetMode
:= NET_CLIENT
;
1911 enet_peer_timeout(NetPeer
, ENET_PEER_TIMEOUT_LIMIT
* 2, ENET_PEER_TIMEOUT_MINIMUM
* 2, ENET_PEER_TIMEOUT_MAXIMUM
* 2);
1913 NetClientPort
:= Port
;
1921 if T
> TimeoutTime
then
1923 TimeoutTime
:= T
+ NET_CONNECT_TIMEOUT
* 100; // одного предупреждения хватит
1924 g_Console_Add(_lc
[I_NET_MSG_TIMEOUT_WARN
], True);
1925 g_Console_Add(Format(_lc
[I_NET_MSG_PORTS
], [Integer(Port
), Integer(NET_PING_PORT
)]), True);
1928 ProcessLoading(true);
1930 if e_KeyPressed(IK_SPACE
) or e_KeyPressed(IK_ESCAPE
) or e_KeyPressed(VK_ESCAPE
) or
1931 e_KeyPressed(JOY0_JUMP
) or e_KeyPressed(JOY1_JUMP
) or e_KeyPressed(JOY2_JUMP
) or e_KeyPressed(JOY3_JUMP
) then
1935 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_TIMEOUT
], True);
1936 g_Console_Add(Format(_lc
[I_NET_MSG_PORTS
], [Integer(Port
), Integer(NET_PING_PORT
)]), True);
1937 if NetPeer
<> nil then enet_peer_reset(NetPeer
);
1938 if NetHost
<> nil then
1940 enet_host_destroy(NetHost
);
1947 function IpToStr(IP
: LongWord): string;
1952 Result
:= IntToStr(PByte(Ptr
+ 0)^) + '.';
1953 Result
:= Result
+ IntToStr(PByte(Ptr
+ 1)^) + '.';
1954 Result
:= Result
+ IntToStr(PByte(Ptr
+ 2)^) + '.';
1955 Result
:= Result
+ IntToStr(PByte(Ptr
+ 3)^);
1958 function StrToIp(IPstr
: string; var IP
: LongWord): Boolean;
1962 Result
:= enet_address_set_host(@EAddr
, PChar(@IPstr
[1])) = 0;
1966 function g_Net_Client_ByName(Name
: string): pTNetClient
;
1972 for a
:= Low(NetClients
) to High(NetClients
) do
1973 if (NetClients
[a
].Used
) and (NetClients
[a
].State
= NET_STATE_GAME
) then
1975 pl
:= g_Player_Get(NetClients
[a
].Player
);
1976 if pl
= nil then continue
;
1977 if Copy(LowerCase(pl
.Name
), 1, Length(Name
)) <> LowerCase(Name
) then continue
;
1978 if NetClients
[a
].Peer
<> nil then
1980 Result
:= @NetClients
[a
];
1986 function g_Net_Client_ByPlayer(PID
: Word): pTNetClient
;
1991 for a
:= Low(NetClients
) to High(NetClients
) do
1992 if (NetClients
[a
].Used
) and (NetClients
[a
].State
= NET_STATE_GAME
) then
1993 if NetClients
[a
].Player
= PID
then
1995 Result
:= @NetClients
[a
];
2000 function g_Net_ClientName_ByID(ID
: Integer): string;
2006 if ID
= NET_EVERYONE
then
2008 for a
:= Low(NetClients
) to High(NetClients
) do
2009 if (NetClients
[a
].ID
= ID
) and (NetClients
[a
].Used
) and (NetClients
[a
].State
= NET_STATE_GAME
) then
2011 pl
:= g_Player_Get(NetClients
[a
].Player
);
2012 if pl
= nil then Exit
;
2017 procedure g_Net_SendData(Data
: AByte
; peer
: pENetPeer
; Reliable
: Boolean; Chan
: Byte = NET_CHAN_DOWNLOAD
);
2021 dataLength
: Cardinal;
2023 dataLength
:= Length(Data
);
2026 F
:= LongWord(ENET_PACKET_FLAG_RELIABLE
)
2030 if (peer
<> nil) then
2032 P
:= enet_packet_create(@Data
[0], dataLength
, F
);
2033 if not Assigned(P
) then Exit
;
2034 enet_peer_send(peer
, Chan
, P
);
2038 P
:= enet_packet_create(@Data
[0], dataLength
, F
);
2039 if not Assigned(P
) then Exit
;
2040 enet_host_broadcast(NetHost
, Chan
, P
);
2043 enet_host_flush(NetHost
);
2046 function g_Net_IsHostBanned(IP
: LongWord; Perm
: Boolean = False): Boolean;
2051 if NetBannedHosts
= nil then
2053 for I
:= 0 to High(NetBannedHosts
) do
2054 if (NetBannedHosts
[I
].IP
= IP
) and ((not Perm
) or (NetBannedHosts
[I
].Perm
)) then
2061 procedure g_Net_BanHost(IP
: LongWord; Perm
: Boolean = True); overload
;
2067 if g_Net_IsHostBanned(IP
, Perm
) then
2071 for I
:= Low(NetBannedHosts
) to High(NetBannedHosts
) do
2072 if NetBannedHosts
[I
].IP
= 0 then
2080 SetLength(NetBannedHosts
, Length(NetBannedHosts
) + 1);
2081 P
:= High(NetBannedHosts
);
2084 NetBannedHosts
[P
].IP
:= IP
;
2085 NetBannedHosts
[P
].Perm
:= Perm
;
2088 procedure g_Net_BanHost(IP
: string; Perm
: Boolean = True); overload
;
2093 b
:= StrToIp(IP
, a
);
2095 g_Net_BanHost(a
, Perm
);
2098 procedure g_Net_UnbanNonPermHosts();
2102 if NetBannedHosts
= nil then
2104 for I
:= Low(NetBannedHosts
) to High(NetBannedHosts
) do
2105 if (NetBannedHosts
[I
].IP
> 0) and not NetBannedHosts
[I
].Perm
then
2107 NetBannedHosts
[I
].IP
:= 0;
2108 NetBannedHosts
[I
].Perm
:= True;
2112 function g_Net_UnbanHost(IP
: string): Boolean; overload
;
2116 Result
:= StrToIp(IP
, a
);
2118 Result
:= g_Net_UnbanHost(a
);
2121 function g_Net_UnbanHost(IP
: LongWord): Boolean; overload
;
2128 if NetBannedHosts
= nil then
2130 for I
:= 0 to High(NetBannedHosts
) do
2131 if NetBannedHosts
[I
].IP
= IP
then
2133 NetBannedHosts
[I
].IP
:= 0;
2134 NetBannedHosts
[I
].Perm
:= True;
2136 // no break here to clear all bans of this host, perm and non-perm
2140 procedure g_Net_SaveBanList();
2145 Assign(F
, DataDir
+ BANLIST_FILENAME
);
2147 if NetBannedHosts
<> nil then
2148 for I
:= 0 to High(NetBannedHosts
) do
2149 if NetBannedHosts
[I
].Perm
and (NetBannedHosts
[I
].IP
> 0) then
2150 Writeln(F
, IpToStr(NetBannedHosts
[I
].IP
));
2154 procedure g_Net_DumpStart();
2156 if NetMode
= NET_SERVER
then
2157 NetDumpFile
:= createDiskFile(NETDUMP_FILENAME
+ '_server')
2159 NetDumpFile
:= createDiskFile(NETDUMP_FILENAME
+ '_client');
2162 procedure g_Net_DumpSendBuffer();
2164 writeInt(NetDumpFile
, gTime
);
2165 writeInt(NetDumpFile
, LongWord(NetOut
.CurSize
));
2166 writeInt(NetDumpFile
, Byte(1));
2167 NetDumpFile
.WriteBuffer(NetOut
.Data
^, NetOut
.CurSize
);
2170 procedure g_Net_DumpRecvBuffer(Buf
: penet_uint8
; Len
: LongWord);
2172 if (Buf
= nil) or (Len
= 0) then Exit
;
2173 writeInt(NetDumpFile
, gTime
);
2174 writeInt(NetDumpFile
, Len
);
2175 writeInt(NetDumpFile
, Byte(0));
2176 NetDumpFile
.WriteBuffer(Buf
^, Len
);
2179 procedure g_Net_DumpEnd();
2185 function g_Net_ForwardPorts(ForwardPongPort
: Boolean = True): Boolean;
2186 {$IFDEF USE_MINIUPNPC}
2191 LanAddr
: array [0..255] of Char;
2192 StrPort
: AnsiString;
2197 if NetPortForwarded
= NetPort
then
2203 NetPongForwarded
:= False;
2204 NetPortForwarded
:= 0;
2206 DevList
:= upnpDiscover(1000, nil, nil, 0, 0, 2, Addr(Err
));
2207 if DevList
= nil then
2209 conwritefln('port forwarding failed: upnpDiscover() failed: %d', [Err
]);
2213 I
:= UPNP_GetValidIGD(DevList
, @Urls
, @Data
, Addr(LanAddr
[0]), 256);
2217 conwriteln('port forwarding failed: could not find an IGD device on this LAN');
2218 FreeUPNPDevList(DevList
);
2219 FreeUPNPUrls(@Urls
);
2223 StrPort
:= IntToStr(NetPort
);
2224 I
:= UPNP_AddPortMapping(
2225 Urls
.controlURL
, Addr(data
.first
.servicetype
[1]),
2226 PChar(StrPort
), PChar(StrPort
), Addr(LanAddr
[0]), PChar('D2DF'),
2227 PChar('UDP'), nil, PChar('0')
2232 conwritefln('forwarding port %d failed: error %d', [NetPort
, I
]);
2233 FreeUPNPDevList(DevList
);
2234 FreeUPNPUrls(@Urls
);
2238 if ForwardPongPort
then
2240 StrPort
:= IntToStr(NET_PING_PORT
);
2241 I
:= UPNP_AddPortMapping(
2242 Urls
.controlURL
, Addr(data
.first
.servicetype
[1]),
2243 PChar(StrPort
), PChar(StrPort
), Addr(LanAddr
[0]), PChar('D2DF'),
2244 PChar('UDP'), nil, PChar('0')
2249 conwritefln('forwarding port %d failed: error %d', [NetPort
+ 1, I
]);
2250 NetPongForwarded
:= False;
2254 conwritefln('forwarded port %d successfully', [NetPort
+ 1]);
2255 NetPongForwarded
:= True;
2259 conwritefln('forwarded port %d successfully', [NetPort
]);
2260 NetIGDControl
:= AnsiString(Urls
.controlURL
);
2261 NetIGDService
:= data
.first
.servicetype
;
2262 NetPortForwarded
:= NetPort
;
2264 FreeUPNPDevList(DevList
);
2265 FreeUPNPUrls(@Urls
);
2274 procedure g_Net_UnforwardPorts();
2275 {$IFDEF USE_MINIUPNPC}
2278 StrPort
: AnsiString;
2280 if NetPortForwarded
= 0 then Exit
;
2282 conwriteln('unforwarding ports...');
2284 StrPort
:= IntToStr(NetPortForwarded
);
2285 I
:= UPNP_DeletePortMapping(
2286 PChar(NetIGDControl
), Addr(NetIGDService
[1]),
2287 PChar(StrPort
), PChar('UDP'), nil
2289 conwritefln(' port %d: %d', [NetPortForwarded
, I
]);
2291 if NetPongForwarded
then
2293 NetPongForwarded
:= False;
2294 StrPort
:= IntToStr(NetPortForwarded
+ 1);
2295 I
:= UPNP_DeletePortMapping(
2296 PChar(NetIGDControl
), Addr(NetIGDService
[1]),
2297 PChar(StrPort
), PChar('UDP'), nil
2299 conwritefln(' port %d: %d', [NetPortForwarded
+ 1, I
]);
2302 NetPortForwarded
:= 0;
2311 conRegVar('cl_downloadtimeout', @g_Net_DownloadTimeout
, 0.0, 1000000.0, '', 'timeout in seconds, 0 to disable it');
2312 SetLength(NetClients
, 0);
2313 g_Net_DownloadTimeout
:= 60;
2314 NetIn
.Alloc(NET_BUFSIZE
);
2315 NetOut
.Alloc(NET_BUFSIZE
);
2316 NetBuf
[NET_UNRELIABLE
].Alloc(NET_BUFSIZE
*2);
2317 NetBuf
[NET_RELIABLE
].Alloc(NET_BUFSIZE
*2);
2318 trans_omsg
.Alloc(NET_BUFSIZE
);
2322 NetBuf
[NET_UNRELIABLE
].Free();
2323 NetBuf
[NET_RELIABLE
].Free();