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00012 #ifdef ENABLE_NETWORK
00013
00014 #include "../stdafx.h"
00015 #include "../debug.h"
00016 #include "network_internal.h"
00017 #include "network_gui.h"
00018 #include "../saveload/saveload.h"
00019 #include "../saveload/saveload_filter.h"
00020 #include "../command_func.h"
00021 #include "../console_func.h"
00022 #include "../fileio_func.h"
00023 #include "../3rdparty/md5/md5.h"
00024 #include "../strings_func.h"
00025 #include "../window_func.h"
00026 #include "../company_func.h"
00027 #include "../company_base.h"
00028 #include "../company_gui.h"
00029 #include "../core/random_func.hpp"
00030 #include "../date_func.h"
00031 #include "../gui.h"
00032 #include "../rev.h"
00033 #include "network.h"
00034 #include "network_base.h"
00035 #include "network_client.h"
00036
00037 #include "table/strings.h"
00038
00039
00040
00041
00043 struct PacketReader : LoadFilter {
00044 static const size_t CHUNK = 32 * 1024;
00045
00046 AutoFreeSmallVector<byte *, 16> blocks;
00047 byte *buf;
00048 byte *bufe;
00049 byte **block;
00050 size_t written_bytes;
00051 size_t read_bytes;
00052
00054 PacketReader() : LoadFilter(NULL), buf(NULL), bufe(NULL), block(NULL), written_bytes(0), read_bytes(0)
00055 {
00056 }
00057
00062 void AddPacket(const Packet *p)
00063 {
00064 assert(this->read_bytes == 0);
00065
00066 size_t in_packet = p->size - p->pos;
00067 size_t to_write = min((size_t)(this->bufe - this->buf), in_packet);
00068 const byte *pbuf = p->buffer + p->pos;
00069
00070 this->written_bytes += in_packet;
00071 if (to_write != 0) {
00072 memcpy(this->buf, pbuf, to_write);
00073 this->buf += to_write;
00074 }
00075
00076
00077 if (to_write == in_packet) return;
00078
00079
00080 pbuf += to_write;
00081 to_write = in_packet - to_write;
00082 this->buf = *this->blocks.Append() = CallocT<byte>(CHUNK);
00083 this->bufe = this->buf + CHUNK;
00084
00085 memcpy(this->buf, pbuf, to_write);
00086 this->buf += to_write;
00087 }
00088
00089 size_t Read(byte *rbuf, size_t size)
00090 {
00091
00092 size_t ret_size = size = min(this->written_bytes - this->read_bytes, size);
00093 this->read_bytes += ret_size;
00094 const byte *rbufe = rbuf + ret_size;
00095
00096 while (rbuf != rbufe) {
00097 if (this->buf == this->bufe) {
00098 this->buf = *this->block++;
00099 this->bufe = this->buf + CHUNK;
00100 }
00101
00102 size_t to_write = min(this->bufe - this->buf, rbufe - rbuf);
00103 memcpy(rbuf, this->buf, to_write);
00104 rbuf += to_write;
00105 this->buf += to_write;
00106 }
00107
00108 return ret_size;
00109 }
00110
00111 void Reset()
00112 {
00113 this->read_bytes = 0;
00114
00115 this->block = this->blocks.Begin();
00116 this->buf = *this->block++;
00117 this->bufe = this->buf + CHUNK;
00118 }
00119 };
00120
00121
00126 ClientNetworkGameSocketHandler::ClientNetworkGameSocketHandler(SOCKET s) : NetworkGameSocketHandler(s), savegame(NULL), status(STATUS_INACTIVE)
00127 {
00128 assert(ClientNetworkGameSocketHandler::my_client == NULL);
00129 ClientNetworkGameSocketHandler::my_client = this;
00130 }
00131
00133 ClientNetworkGameSocketHandler::~ClientNetworkGameSocketHandler()
00134 {
00135 assert(ClientNetworkGameSocketHandler::my_client == this);
00136 ClientNetworkGameSocketHandler::my_client = NULL;
00137
00138 delete this->savegame;
00139 }
00140
00141 NetworkRecvStatus ClientNetworkGameSocketHandler::CloseConnection(NetworkRecvStatus status)
00142 {
00143 assert(status != NETWORK_RECV_STATUS_OKAY);
00144
00145
00146
00147
00148
00149
00150
00151 if (this->sock == INVALID_SOCKET) return status;
00152
00153 DEBUG(net, 1, "Closed client connection %d", this->client_id);
00154
00155 this->SendPackets(true);
00156
00157 delete this->GetInfo();
00158 delete this;
00159
00160 return status;
00161 }
00162
00167 void ClientNetworkGameSocketHandler::ClientError(NetworkRecvStatus res)
00168 {
00169
00170
00171 NetworkErrorCode errorno;
00172
00173
00174 if (res == NETWORK_RECV_STATUS_CLOSE_QUERY) {
00175 this->NetworkSocketHandler::CloseConnection();
00176 this->CloseConnection(res);
00177 _networking = false;
00178
00179 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00180 return;
00181 }
00182
00183 switch (res) {
00184 case NETWORK_RECV_STATUS_DESYNC: errorno = NETWORK_ERROR_DESYNC; break;
00185 case NETWORK_RECV_STATUS_SAVEGAME: errorno = NETWORK_ERROR_SAVEGAME_FAILED; break;
00186 case NETWORK_RECV_STATUS_NEWGRF_MISMATCH: errorno = NETWORK_ERROR_NEWGRF_MISMATCH; break;
00187 default: errorno = NETWORK_ERROR_GENERAL; break;
00188 }
00189
00190
00191 if (res != NETWORK_RECV_STATUS_SERVER_ERROR && res != NETWORK_RECV_STATUS_SERVER_FULL &&
00192 res != NETWORK_RECV_STATUS_SERVER_BANNED) {
00193 SendError(errorno);
00194 }
00195
00196 _switch_mode = SM_MENU;
00197 this->CloseConnection(res);
00198 _networking = false;
00199 }
00200
00201
00207 bool ClientNetworkGameSocketHandler::Receive()
00208 {
00209 if (my_client->CanSendReceive()) {
00210 NetworkRecvStatus res = my_client->ReceivePackets();
00211 if (res != NETWORK_RECV_STATUS_OKAY) {
00212
00213
00214 my_client->ClientError(res);
00215 return false;
00216 }
00217 }
00218 return _networking;
00219 }
00220
00222 void ClientNetworkGameSocketHandler::Send()
00223 {
00224 my_client->SendPackets();
00225 my_client->CheckConnection();
00226 }
00227
00232 bool ClientNetworkGameSocketHandler::GameLoop()
00233 {
00234 _frame_counter++;
00235
00236 NetworkExecuteLocalCommandQueue();
00237
00238 extern void StateGameLoop();
00239 StateGameLoop();
00240
00241
00242 if (_sync_frame != 0) {
00243 if (_sync_frame == _frame_counter) {
00244 #ifdef NETWORK_SEND_DOUBLE_SEED
00245 if (_sync_seed_1 != _random.state[0] || _sync_seed_2 != _random.state[1]) {
00246 #else
00247 if (_sync_seed_1 != _random.state[0]) {
00248 #endif
00249 NetworkError(STR_NETWORK_ERROR_DESYNC);
00250 DEBUG(desync, 1, "sync_err: %08x; %02x", _date, _date_fract);
00251 DEBUG(net, 0, "Sync error detected!");
00252 my_client->ClientError(NETWORK_RECV_STATUS_DESYNC);
00253 return false;
00254 }
00255
00256
00257
00258
00259 if (_network_first_time) {
00260 _network_first_time = false;
00261 SendAck();
00262 }
00263
00264 _sync_frame = 0;
00265 } else if (_sync_frame < _frame_counter) {
00266 DEBUG(net, 1, "Missed frame for sync-test (%d / %d)", _sync_frame, _frame_counter);
00267 _sync_frame = 0;
00268 }
00269 }
00270
00271 return true;
00272 }
00273
00274
00276 ClientNetworkGameSocketHandler * ClientNetworkGameSocketHandler::my_client = NULL;
00277
00278 static uint32 last_ack_frame;
00279
00281 static uint32 _password_game_seed;
00283 static char _password_server_id[NETWORK_SERVER_ID_LENGTH];
00284
00286 static uint8 _network_server_max_companies;
00288 static uint8 _network_server_max_spectators;
00289
00291 CompanyID _network_join_as;
00292
00294 const char *_network_join_server_password = NULL;
00296 const char *_network_join_company_password = NULL;
00297
00299 assert_compile(NETWORK_SERVER_ID_LENGTH == 16 * 2 + 1);
00300
00306 static const char *GenerateCompanyPasswordHash(const char *password)
00307 {
00308 if (StrEmpty(password)) return password;
00309
00310 char salted_password[NETWORK_SERVER_ID_LENGTH];
00311
00312 memset(salted_password, 0, sizeof(salted_password));
00313 snprintf(salted_password, sizeof(salted_password), "%s", password);
00314
00315 for (uint i = 0; i < NETWORK_SERVER_ID_LENGTH - 1; i++) {
00316 salted_password[i] ^= _password_server_id[i] ^ (_password_game_seed >> (i % 32));
00317 }
00318
00319 Md5 checksum;
00320 uint8 digest[16];
00321 static char hashed_password[NETWORK_SERVER_ID_LENGTH];
00322
00323
00324 checksum.Append(salted_password, sizeof(salted_password) - 1);
00325 checksum.Finish(digest);
00326
00327 for (int di = 0; di < 16; di++) sprintf(hashed_password + di * 2, "%02x", digest[di]);
00328 hashed_password[lengthof(hashed_password) - 1] = '\0';
00329
00330 return hashed_password;
00331 }
00332
00336 static void HashCurrentCompanyPassword(const char *password)
00337 {
00338 _password_game_seed = _settings_game.game_creation.generation_seed;
00339 strecpy(_password_server_id, _settings_client.network.network_id, lastof(_password_server_id));
00340
00341 const char *new_pw = GenerateCompanyPasswordHash(password);
00342 strecpy(_network_company_states[_local_company].password, new_pw, lastof(_network_company_states[_local_company].password));
00343
00344 if (_network_server) {
00345 NetworkServerUpdateCompanyPassworded(_local_company, !StrEmpty(_network_company_states[_local_company].password));
00346 }
00347 }
00348
00349
00350
00351
00352
00353
00354
00355 NetworkRecvStatus ClientNetworkGameSocketHandler::SendCompanyInformationQuery()
00356 {
00357 my_client->status = STATUS_COMPANY_INFO;
00358 _network_join_status = NETWORK_JOIN_STATUS_GETTING_COMPANY_INFO;
00359 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00360
00361 Packet *p = new Packet(PACKET_CLIENT_COMPANY_INFO);
00362 my_client->SendPacket(p);
00363 return NETWORK_RECV_STATUS_OKAY;
00364 }
00365
00366 NetworkRecvStatus ClientNetworkGameSocketHandler::SendJoin()
00367 {
00368 my_client->status = STATUS_JOIN;
00369 _network_join_status = NETWORK_JOIN_STATUS_AUTHORIZING;
00370 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00371
00372 Packet *p = new Packet(PACKET_CLIENT_JOIN);
00373 p->Send_string(_openttd_revision);
00374 p->Send_string(_settings_client.network.client_name);
00375 p->Send_uint8 (_network_join_as);
00376 p->Send_uint8 (NETLANG_ANY);
00377 my_client->SendPacket(p);
00378 return NETWORK_RECV_STATUS_OKAY;
00379 }
00380
00381 NetworkRecvStatus ClientNetworkGameSocketHandler::SendNewGRFsOk()
00382 {
00383 Packet *p = new Packet(PACKET_CLIENT_NEWGRFS_CHECKED);
00384 my_client->SendPacket(p);
00385 return NETWORK_RECV_STATUS_OKAY;
00386 }
00387
00388 NetworkRecvStatus ClientNetworkGameSocketHandler::SendGamePassword(const char *password)
00389 {
00390 Packet *p = new Packet(PACKET_CLIENT_GAME_PASSWORD);
00391 p->Send_string(password);
00392 my_client->SendPacket(p);
00393 return NETWORK_RECV_STATUS_OKAY;
00394 }
00395
00396 NetworkRecvStatus ClientNetworkGameSocketHandler::SendCompanyPassword(const char *password)
00397 {
00398 Packet *p = new Packet(PACKET_CLIENT_COMPANY_PASSWORD);
00399 p->Send_string(GenerateCompanyPasswordHash(password));
00400 my_client->SendPacket(p);
00401 return NETWORK_RECV_STATUS_OKAY;
00402 }
00403
00404 NetworkRecvStatus ClientNetworkGameSocketHandler::SendGetMap()
00405 {
00406 my_client->status = STATUS_MAP_WAIT;
00407
00408 Packet *p = new Packet(PACKET_CLIENT_GETMAP);
00409
00410
00411
00412
00413
00414
00415 if (HasBit(_openttd_newgrf_version, 19)) p->Send_uint32(_openttd_newgrf_version);
00416 my_client->SendPacket(p);
00417 return NETWORK_RECV_STATUS_OKAY;
00418 }
00419
00420 NetworkRecvStatus ClientNetworkGameSocketHandler::SendMapOk()
00421 {
00422 my_client->status = STATUS_ACTIVE;
00423
00424 Packet *p = new Packet(PACKET_CLIENT_MAP_OK);
00425 my_client->SendPacket(p);
00426 return NETWORK_RECV_STATUS_OKAY;
00427 }
00428
00429 NetworkRecvStatus ClientNetworkGameSocketHandler::SendAck()
00430 {
00431 Packet *p = new Packet(PACKET_CLIENT_ACK);
00432
00433 p->Send_uint32(_frame_counter);
00434 p->Send_uint8 (my_client->token);
00435 my_client->SendPacket(p);
00436 return NETWORK_RECV_STATUS_OKAY;
00437 }
00438
00439
00440 NetworkRecvStatus ClientNetworkGameSocketHandler::SendCommand(const CommandPacket *cp)
00441 {
00442 Packet *p = new Packet(PACKET_CLIENT_COMMAND);
00443 my_client->NetworkGameSocketHandler::SendCommand(p, cp);
00444
00445 my_client->SendPacket(p);
00446 return NETWORK_RECV_STATUS_OKAY;
00447 }
00448
00449
00450 NetworkRecvStatus ClientNetworkGameSocketHandler::SendChat(NetworkAction action, DestType type, int dest, const char *msg, int64 data)
00451 {
00452 Packet *p = new Packet(PACKET_CLIENT_CHAT);
00453
00454 p->Send_uint8 (action);
00455 p->Send_uint8 (type);
00456 p->Send_uint32(dest);
00457 p->Send_string(msg);
00458 p->Send_uint64(data);
00459
00460 my_client->SendPacket(p);
00461 return NETWORK_RECV_STATUS_OKAY;
00462 }
00463
00464
00465 NetworkRecvStatus ClientNetworkGameSocketHandler::SendError(NetworkErrorCode errorno)
00466 {
00467 Packet *p = new Packet(PACKET_CLIENT_ERROR);
00468
00469 p->Send_uint8(errorno);
00470 my_client->SendPacket(p);
00471 return NETWORK_RECV_STATUS_OKAY;
00472 }
00473
00474 NetworkRecvStatus ClientNetworkGameSocketHandler::SendSetPassword(const char *password)
00475 {
00476 Packet *p = new Packet(PACKET_CLIENT_SET_PASSWORD);
00477
00478 p->Send_string(GenerateCompanyPasswordHash(password));
00479 my_client->SendPacket(p);
00480 return NETWORK_RECV_STATUS_OKAY;
00481 }
00482
00483 NetworkRecvStatus ClientNetworkGameSocketHandler::SendSetName(const char *name)
00484 {
00485 Packet *p = new Packet(PACKET_CLIENT_SET_NAME);
00486
00487 p->Send_string(name);
00488 my_client->SendPacket(p);
00489 return NETWORK_RECV_STATUS_OKAY;
00490 }
00491
00492 NetworkRecvStatus ClientNetworkGameSocketHandler::SendQuit()
00493 {
00494 Packet *p = new Packet(PACKET_CLIENT_QUIT);
00495
00496 my_client->SendPacket(p);
00497 return NETWORK_RECV_STATUS_OKAY;
00498 }
00499
00500 NetworkRecvStatus ClientNetworkGameSocketHandler::SendRCon(const char *pass, const char *command)
00501 {
00502 Packet *p = new Packet(PACKET_CLIENT_RCON);
00503 p->Send_string(pass);
00504 p->Send_string(command);
00505 my_client->SendPacket(p);
00506 return NETWORK_RECV_STATUS_OKAY;
00507 }
00508
00509 NetworkRecvStatus ClientNetworkGameSocketHandler::SendMove(CompanyID company, const char *pass)
00510 {
00511 Packet *p = new Packet(PACKET_CLIENT_MOVE);
00512 p->Send_uint8(company);
00513 p->Send_string(GenerateCompanyPasswordHash(pass));
00514 my_client->SendPacket(p);
00515 return NETWORK_RECV_STATUS_OKAY;
00516 }
00517
00518
00519
00520
00521
00522
00523
00524 extern bool SafeLoad(const char *filename, int mode, GameMode newgm, Subdirectory subdir, struct LoadFilter *lf = NULL);
00525 extern StringID _switch_mode_errorstr;
00526
00527 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_FULL)
00528 {
00529
00530 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_FULL;
00531 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00532
00533 return NETWORK_RECV_STATUS_SERVER_FULL;
00534 }
00535
00536 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_BANNED)
00537 {
00538
00539 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_BANNED;
00540 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00541
00542 return NETWORK_RECV_STATUS_SERVER_BANNED;
00543 }
00544
00545 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_COMPANY_INFO)
00546 {
00547 if (this->status != STATUS_COMPANY_INFO) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00548
00549 byte company_info_version = p->Recv_uint8();
00550
00551 if (!this->HasClientQuit() && company_info_version == NETWORK_COMPANY_INFO_VERSION) {
00552
00553 if (!p->Recv_bool()) return NETWORK_RECV_STATUS_CLOSE_QUERY;
00554
00555 CompanyID current = (Owner)p->Recv_uint8();
00556 if (current >= MAX_COMPANIES) return NETWORK_RECV_STATUS_CLOSE_QUERY;
00557
00558 NetworkCompanyInfo *company_info = GetLobbyCompanyInfo(current);
00559 if (company_info == NULL) return NETWORK_RECV_STATUS_CLOSE_QUERY;
00560
00561 p->Recv_string(company_info->company_name, sizeof(company_info->company_name));
00562 company_info->inaugurated_year = p->Recv_uint32();
00563 company_info->company_value = p->Recv_uint64();
00564 company_info->money = p->Recv_uint64();
00565 company_info->income = p->Recv_uint64();
00566 company_info->performance = p->Recv_uint16();
00567 company_info->use_password = p->Recv_bool();
00568 for (uint i = 0; i < NETWORK_VEH_END; i++) {
00569 company_info->num_vehicle[i] = p->Recv_uint16();
00570 }
00571 for (uint i = 0; i < NETWORK_VEH_END; i++) {
00572 company_info->num_station[i] = p->Recv_uint16();
00573 }
00574 company_info->ai = p->Recv_bool();
00575
00576 p->Recv_string(company_info->clients, sizeof(company_info->clients));
00577
00578 SetWindowDirty(WC_NETWORK_WINDOW, 0);
00579
00580 return NETWORK_RECV_STATUS_OKAY;
00581 }
00582
00583 return NETWORK_RECV_STATUS_CLOSE_QUERY;
00584 }
00585
00586
00587
00588
00589 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CLIENT_INFO)
00590 {
00591 NetworkClientInfo *ci;
00592 ClientID client_id = (ClientID)p->Recv_uint32();
00593 CompanyID playas = (CompanyID)p->Recv_uint8();
00594 char name[NETWORK_NAME_LENGTH];
00595
00596 p->Recv_string(name, sizeof(name));
00597
00598 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00599 if (this->HasClientQuit()) return NETWORK_RECV_STATUS_CONN_LOST;
00600
00601 ci = NetworkFindClientInfoFromClientID(client_id);
00602 if (ci != NULL) {
00603 if (playas == ci->client_playas && strcmp(name, ci->client_name) != 0) {
00604
00605 NetworkTextMessage(NETWORK_ACTION_NAME_CHANGE, CC_DEFAULT, false, ci->client_name, name);
00606 } else if (playas != ci->client_playas) {
00607
00608
00609 }
00610
00611
00612
00613 if (client_id == _network_own_client_id) SetLocalCompany(!Company::IsValidID(playas) ? COMPANY_SPECTATOR : playas);
00614
00615 ci->client_playas = playas;
00616 strecpy(ci->client_name, name, lastof(ci->client_name));
00617
00618 SetWindowDirty(WC_CLIENT_LIST, 0);
00619
00620 return NETWORK_RECV_STATUS_OKAY;
00621 }
00622
00623
00624 ci = new NetworkClientInfo(client_id);
00625 ci->client_playas = playas;
00626 if (client_id == _network_own_client_id) this->SetInfo(ci);
00627
00628 strecpy(ci->client_name, name, lastof(ci->client_name));
00629
00630 SetWindowDirty(WC_CLIENT_LIST, 0);
00631
00632 return NETWORK_RECV_STATUS_OKAY;
00633 }
00634
00635 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_ERROR)
00636 {
00637 NetworkErrorCode error = (NetworkErrorCode)p->Recv_uint8();
00638
00639 switch (error) {
00640
00641 case NETWORK_ERROR_NOT_AUTHORIZED:
00642 case NETWORK_ERROR_NOT_EXPECTED:
00643 case NETWORK_ERROR_COMPANY_MISMATCH:
00644 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_ERROR;
00645 break;
00646 case NETWORK_ERROR_FULL:
00647 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_FULL;
00648 break;
00649 case NETWORK_ERROR_WRONG_REVISION:
00650 _switch_mode_errorstr = STR_NETWORK_ERROR_WRONG_REVISION;
00651 break;
00652 case NETWORK_ERROR_WRONG_PASSWORD:
00653 _switch_mode_errorstr = STR_NETWORK_ERROR_WRONG_PASSWORD;
00654 break;
00655 case NETWORK_ERROR_KICKED:
00656 _switch_mode_errorstr = STR_NETWORK_ERROR_KICKED;
00657 break;
00658 case NETWORK_ERROR_CHEATER:
00659 _switch_mode_errorstr = STR_NETWORK_ERROR_CHEATER;
00660 break;
00661 case NETWORK_ERROR_TOO_MANY_COMMANDS:
00662 _switch_mode_errorstr = STR_NETWORK_ERROR_TOO_MANY_COMMANDS;
00663 break;
00664 default:
00665 _switch_mode_errorstr = STR_NETWORK_ERROR_LOSTCONNECTION;
00666 }
00667
00668 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00669
00670 return NETWORK_RECV_STATUS_SERVER_ERROR;
00671 }
00672
00673 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CHECK_NEWGRFS)
00674 {
00675 if (this->status != STATUS_JOIN) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00676
00677 uint grf_count = p->Recv_uint8();
00678 NetworkRecvStatus ret = NETWORK_RECV_STATUS_OKAY;
00679
00680
00681 for (; grf_count > 0; grf_count--) {
00682 GRFIdentifier c;
00683 this->ReceiveGRFIdentifier(p, &c);
00684
00685
00686 const GRFConfig *f = FindGRFConfig(c.grfid, FGCM_EXACT, c.md5sum);
00687 if (f == NULL) {
00688
00689 char buf[sizeof(c.md5sum) * 2 + 1];
00690 md5sumToString(buf, lastof(buf), c.md5sum);
00691 DEBUG(grf, 0, "NewGRF %08X not found; checksum %s", BSWAP32(c.grfid), buf);
00692 ret = NETWORK_RECV_STATUS_NEWGRF_MISMATCH;
00693 }
00694 }
00695
00696 if (ret == NETWORK_RECV_STATUS_OKAY) {
00697
00698 return SendNewGRFsOk();
00699 }
00700
00701
00702 _switch_mode_errorstr = STR_NETWORK_ERROR_NEWGRF_MISMATCH;
00703 return ret;
00704 }
00705
00706 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_NEED_GAME_PASSWORD)
00707 {
00708 if (this->status < STATUS_JOIN || this->status >= STATUS_AUTH_GAME) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00709 this->status = STATUS_AUTH_GAME;
00710
00711 const char *password = _network_join_server_password;
00712 if (!StrEmpty(password)) {
00713 return SendGamePassword(password);
00714 }
00715
00716 ShowNetworkNeedPassword(NETWORK_GAME_PASSWORD);
00717
00718 return NETWORK_RECV_STATUS_OKAY;
00719 }
00720
00721 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_NEED_COMPANY_PASSWORD)
00722 {
00723 if (this->status < STATUS_JOIN || this->status >= STATUS_AUTH_COMPANY) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00724 this->status = STATUS_AUTH_COMPANY;
00725
00726 _password_game_seed = p->Recv_uint32();
00727 p->Recv_string(_password_server_id, sizeof(_password_server_id));
00728 if (this->HasClientQuit()) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00729
00730 const char *password = _network_join_company_password;
00731 if (!StrEmpty(password)) {
00732 return SendCompanyPassword(password);
00733 }
00734
00735 ShowNetworkNeedPassword(NETWORK_COMPANY_PASSWORD);
00736
00737 return NETWORK_RECV_STATUS_OKAY;
00738 }
00739
00740 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_WELCOME)
00741 {
00742 if (this->status < STATUS_JOIN || this->status >= STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00743 this->status = STATUS_AUTHORIZED;
00744
00745 _network_own_client_id = (ClientID)p->Recv_uint32();
00746
00747
00748 _password_game_seed = p->Recv_uint32();
00749 p->Recv_string(_password_server_id, sizeof(_password_server_id));
00750
00751
00752 return SendGetMap();
00753 }
00754
00755 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_WAIT)
00756 {
00757 if (this->status != STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00758 this->status = STATUS_MAP_WAIT;
00759
00760 _network_join_status = NETWORK_JOIN_STATUS_WAITING;
00761 _network_join_waiting = p->Recv_uint8();
00762 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00763
00764
00765 DEBUG(net, 1, "The server is currently busy sending the map to someone else, please wait..." );
00766 DEBUG(net, 1, "There are %d clients in front of you", _network_join_waiting);
00767
00768 return NETWORK_RECV_STATUS_OKAY;
00769 }
00770
00771 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_BEGIN)
00772 {
00773 if (this->status < STATUS_AUTHORIZED || this->status >= STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00774 this->status = STATUS_MAP;
00775
00776 if (this->savegame != NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00777
00778 this->savegame = new PacketReader();
00779
00780 _frame_counter = _frame_counter_server = _frame_counter_max = p->Recv_uint32();
00781
00782 _network_join_bytes = 0;
00783 _network_join_bytes_total = 0;
00784
00785 _network_join_status = NETWORK_JOIN_STATUS_DOWNLOADING;
00786 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00787
00788 return NETWORK_RECV_STATUS_OKAY;
00789 }
00790
00791 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_SIZE)
00792 {
00793 if (this->status != STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00794 if (this->savegame == NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00795
00796 _network_join_bytes_total = p->Recv_uint32();
00797 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00798
00799 return NETWORK_RECV_STATUS_OKAY;
00800 }
00801
00802 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_DATA)
00803 {
00804 if (this->status != STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00805 if (this->savegame == NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00806
00807
00808 this->savegame->AddPacket(p);
00809
00810 _network_join_bytes = (uint32)this->savegame->written_bytes;
00811 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00812
00813 return NETWORK_RECV_STATUS_OKAY;
00814 }
00815
00816 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_DONE)
00817 {
00818 if (this->status != STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00819 if (this->savegame == NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00820
00821 _network_join_status = NETWORK_JOIN_STATUS_PROCESSING;
00822 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00823
00824
00825
00826
00827
00828
00829
00830
00831 LoadFilter *lf = this->savegame;
00832 this->savegame = NULL;
00833 lf->Reset();
00834
00835
00836 bool load_success = SafeLoad(NULL, SL_LOAD, GM_NORMAL, NO_DIRECTORY, lf);
00837
00838
00839 this->last_packet = _realtime_tick;
00840
00841 if (!load_success) {
00842 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00843 _switch_mode_errorstr = STR_NETWORK_ERROR_SAVEGAMEERROR;
00844 return NETWORK_RECV_STATUS_SAVEGAME;
00845 }
00846
00847
00848
00849
00850 SendMapOk();
00851
00852
00853
00854 if (_network_join_as == COMPANY_NEW_COMPANY || !Company::IsValidID(_network_join_as)) {
00855 SetLocalCompany(COMPANY_SPECTATOR);
00856
00857 if (_network_join_as != COMPANY_SPECTATOR) {
00858
00859
00860 _network_join_status = NETWORK_JOIN_STATUS_REGISTERING;
00861 ShowJoinStatusWindow();
00862 NetworkSendCommand(0, 0, 0, CMD_COMPANY_CTRL, NULL, NULL, _local_company);
00863 }
00864 } else {
00865
00866 SetLocalCompany(_network_join_as);
00867 }
00868
00869 return NETWORK_RECV_STATUS_OKAY;
00870 }
00871
00872 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_FRAME)
00873 {
00874 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00875
00876 _frame_counter_server = p->Recv_uint32();
00877 _frame_counter_max = p->Recv_uint32();
00878 #ifdef ENABLE_NETWORK_SYNC_EVERY_FRAME
00879
00880
00881 if (p->pos + 1 < p->size) {
00882 _sync_frame = _frame_counter_server;
00883 _sync_seed_1 = p->Recv_uint32();
00884 #ifdef NETWORK_SEND_DOUBLE_SEED
00885 _sync_seed_2 = p->Recv_uint32();
00886 #endif
00887 }
00888 #endif
00889
00890 if (p->pos != p->size) this->token = p->Recv_uint8();
00891
00892 DEBUG(net, 5, "Received FRAME %d", _frame_counter_server);
00893
00894
00895
00896 if (!_network_first_time && last_ack_frame < _frame_counter) {
00897 last_ack_frame = _frame_counter + DAY_TICKS;
00898 DEBUG(net, 4, "Sent ACK at %d", _frame_counter);
00899 SendAck();
00900 }
00901
00902 return NETWORK_RECV_STATUS_OKAY;
00903 }
00904
00905 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_SYNC)
00906 {
00907 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00908
00909 _sync_frame = p->Recv_uint32();
00910 _sync_seed_1 = p->Recv_uint32();
00911 #ifdef NETWORK_SEND_DOUBLE_SEED
00912 _sync_seed_2 = p->Recv_uint32();
00913 #endif
00914
00915 return NETWORK_RECV_STATUS_OKAY;
00916 }
00917
00918 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_COMMAND)
00919 {
00920 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00921
00922 CommandPacket cp;
00923 const char *err = this->ReceiveCommand(p, &cp);
00924 cp.frame = p->Recv_uint32();
00925 cp.my_cmd = p->Recv_bool();
00926
00927 if (err != NULL) {
00928 IConsolePrintF(CC_ERROR, "WARNING: %s from server, dropping...", err);
00929 return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00930 }
00931
00932 this->incoming_queue.Append(&cp);
00933
00934 return NETWORK_RECV_STATUS_OKAY;
00935 }
00936
00937 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CHAT)
00938 {
00939 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00940
00941 char name[NETWORK_NAME_LENGTH], msg[NETWORK_CHAT_LENGTH];
00942 const NetworkClientInfo *ci = NULL, *ci_to;
00943
00944 NetworkAction action = (NetworkAction)p->Recv_uint8();
00945 ClientID client_id = (ClientID)p->Recv_uint32();
00946 bool self_send = p->Recv_bool();
00947 p->Recv_string(msg, NETWORK_CHAT_LENGTH);
00948 int64 data = p->Recv_uint64();
00949
00950 ci_to = NetworkFindClientInfoFromClientID(client_id);
00951 if (ci_to == NULL) return NETWORK_RECV_STATUS_OKAY;
00952
00953
00954 if (self_send) {
00955 switch (action) {
00956 case NETWORK_ACTION_CHAT_CLIENT:
00957
00958 snprintf(name, sizeof(name), "%s", ci_to->client_name);
00959 ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
00960 break;
00961
00962
00963 case NETWORK_ACTION_GIVE_MONEY:
00964 if (!Company::IsValidID(ci_to->client_playas)) return NETWORK_RECV_STATUS_OKAY;
00965
00966 case NETWORK_ACTION_CHAT_COMPANY: {
00967 StringID str = Company::IsValidID(ci_to->client_playas) ? STR_COMPANY_NAME : STR_NETWORK_SPECTATORS;
00968 SetDParam(0, ci_to->client_playas);
00969
00970 GetString(name, str, lastof(name));
00971 ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
00972 break;
00973 }
00974
00975 default: return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00976 }
00977 } else {
00978
00979 snprintf(name, sizeof(name), "%s", ci_to->client_name);
00980 ci = ci_to;
00981 }
00982
00983 if (ci != NULL) {
00984 NetworkTextMessage(action, GetDrawStringCompanyColour(ci->client_playas), self_send, name, msg, data);
00985 }
00986 return NETWORK_RECV_STATUS_OKAY;
00987 }
00988
00989 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_ERROR_QUIT)
00990 {
00991 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00992
00993 ClientID client_id = (ClientID)p->Recv_uint32();
00994
00995 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
00996 if (ci != NULL) {
00997 NetworkTextMessage(NETWORK_ACTION_LEAVE, CC_DEFAULT, false, ci->client_name, NULL, GetNetworkErrorMsg((NetworkErrorCode)p->Recv_uint8()));
00998 delete ci;
00999 }
01000
01001 SetWindowDirty(WC_CLIENT_LIST, 0);
01002
01003 return NETWORK_RECV_STATUS_OKAY;
01004 }
01005
01006 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_QUIT)
01007 {
01008 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01009
01010 ClientID client_id = (ClientID)p->Recv_uint32();
01011
01012 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
01013 if (ci != NULL) {
01014 NetworkTextMessage(NETWORK_ACTION_LEAVE, CC_DEFAULT, false, ci->client_name, NULL, STR_NETWORK_MESSAGE_CLIENT_LEAVING);
01015 delete ci;
01016 } else {
01017 DEBUG(net, 0, "Unknown client (%d) is leaving the game", client_id);
01018 }
01019
01020 SetWindowDirty(WC_CLIENT_LIST, 0);
01021
01022
01023 return NETWORK_RECV_STATUS_OKAY;
01024 }
01025
01026 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_JOIN)
01027 {
01028 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01029
01030 ClientID client_id = (ClientID)p->Recv_uint32();
01031
01032 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
01033 if (ci != NULL) {
01034 NetworkTextMessage(NETWORK_ACTION_JOIN, CC_DEFAULT, false, ci->client_name);
01035 }
01036
01037 SetWindowDirty(WC_CLIENT_LIST, 0);
01038
01039 return NETWORK_RECV_STATUS_OKAY;
01040 }
01041
01042 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_SHUTDOWN)
01043 {
01044
01045
01046 if (this->status >= STATUS_JOIN) {
01047 _switch_mode_errorstr = STR_NETWORK_MESSAGE_SERVER_SHUTDOWN;
01048 }
01049
01050 return NETWORK_RECV_STATUS_SERVER_ERROR;
01051 }
01052
01053 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_NEWGAME)
01054 {
01055
01056
01057 if (this->status >= STATUS_JOIN) {
01058
01059
01060
01061 _network_reconnect = _network_own_client_id % 16;
01062 _switch_mode_errorstr = STR_NETWORK_MESSAGE_SERVER_REBOOT;
01063 }
01064
01065 return NETWORK_RECV_STATUS_SERVER_ERROR;
01066 }
01067
01068 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_RCON)
01069 {
01070 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01071
01072 TextColour colour_code = (TextColour)p->Recv_uint16();
01073 if (!IsValidConsoleColour(colour_code)) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01074
01075 char rcon_out[NETWORK_RCONCOMMAND_LENGTH];
01076 p->Recv_string(rcon_out, sizeof(rcon_out));
01077
01078 IConsolePrint(colour_code, rcon_out);
01079
01080 return NETWORK_RECV_STATUS_OKAY;
01081 }
01082
01083 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MOVE)
01084 {
01085 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01086
01087
01088 ClientID client_id = (ClientID)p->Recv_uint32();
01089 CompanyID company_id = (CompanyID)p->Recv_uint8();
01090
01091 if (client_id == 0) {
01092
01093 DEBUG(net, 0, "[move] received invalid client index = 0");
01094 return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01095 }
01096
01097 const NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
01098
01099 if (ci == NULL) return NETWORK_RECV_STATUS_OKAY;
01100
01101
01102 if (!Company::IsValidID(company_id)) company_id = COMPANY_SPECTATOR;
01103
01104 if (client_id == _network_own_client_id) {
01105 SetLocalCompany(company_id);
01106 }
01107
01108 return NETWORK_RECV_STATUS_OKAY;
01109 }
01110
01111 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CONFIG_UPDATE)
01112 {
01113 if (this->status < STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01114
01115 _network_server_max_companies = p->Recv_uint8();
01116 _network_server_max_spectators = p->Recv_uint8();
01117
01118 return NETWORK_RECV_STATUS_OKAY;
01119 }
01120
01121 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_COMPANY_UPDATE)
01122 {
01123 if (this->status < STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01124
01125 _network_company_passworded = p->Recv_uint16();
01126 SetWindowClassesDirty(WC_COMPANY);
01127
01128 return NETWORK_RECV_STATUS_OKAY;
01129 }
01130
01134 void ClientNetworkGameSocketHandler::CheckConnection()
01135 {
01136
01137 if (this->status < STATUS_AUTHORIZED) return;
01138
01139
01140 if (_realtime_tick < this->last_packet) this->last_packet = _realtime_tick;
01141
01142
01143
01144 uint lag = (_realtime_tick - this->last_packet) / 1000;
01145 if (lag < 5) return;
01146
01147
01148
01149 if (lag > 20) {
01150 this->NetworkGameSocketHandler::CloseConnection();
01151 _switch_mode_errorstr = STR_NETWORK_ERROR_LOSTCONNECTION;
01152 return;
01153 }
01154
01155
01156 static uint last_lag = 0;
01157 if (last_lag == lag) return;
01158
01159 last_lag = lag;
01160 SetDParam(0, lag);
01161 ShowErrorMessage(STR_NETWORK_ERROR_CLIENT_GUI_LOST_CONNECTION_CAPTION, STR_NETWORK_ERROR_CLIENT_GUI_LOST_CONNECTION, WL_INFO);
01162 }
01163
01164
01165
01166 void NetworkClient_Connected()
01167 {
01168
01169 _frame_counter = 0;
01170 _frame_counter_server = 0;
01171 last_ack_frame = 0;
01172
01173 MyClient::SendJoin();
01174 }
01175
01176 void NetworkClientSendRcon(const char *password, const char *command)
01177 {
01178 MyClient::SendRCon(password, command);
01179 }
01180
01187 void NetworkClientRequestMove(CompanyID company_id, const char *pass)
01188 {
01189 MyClient::SendMove(company_id, pass);
01190 }
01191
01192 void NetworkClientsToSpectators(CompanyID cid)
01193 {
01194
01195 if (cid == _local_company) SetLocalCompany(COMPANY_SPECTATOR);
01196
01197 NetworkClientInfo *ci;
01198 FOR_ALL_CLIENT_INFOS(ci) {
01199 if (ci->client_playas != cid) continue;
01200 NetworkTextMessage(NETWORK_ACTION_COMPANY_SPECTATOR, CC_DEFAULT, false, ci->client_name);
01201 ci->client_playas = COMPANY_SPECTATOR;
01202 }
01203 }
01204
01205 void NetworkUpdateClientName()
01206 {
01207 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
01208
01209 if (ci == NULL) return;
01210
01211
01212 if (strcmp(ci->client_name, _settings_client.network.client_name) != 0) {
01213 if (!_network_server) {
01214 MyClient::SendSetName(_settings_client.network.client_name);
01215 } else {
01216 if (NetworkFindName(_settings_client.network.client_name)) {
01217 NetworkTextMessage(NETWORK_ACTION_NAME_CHANGE, CC_DEFAULT, false, ci->client_name, _settings_client.network.client_name);
01218 strecpy(ci->client_name, _settings_client.network.client_name, lastof(ci->client_name));
01219 NetworkUpdateClientInfo(CLIENT_ID_SERVER);
01220 }
01221 }
01222 }
01223 }
01224
01225 void NetworkClientSendChat(NetworkAction action, DestType type, int dest, const char *msg, int64 data)
01226 {
01227 MyClient::SendChat(action, type, dest, msg, data);
01228 }
01229
01230 static void NetworkClientSetPassword(const char *password)
01231 {
01232 MyClient::SendSetPassword(password);
01233 }
01234
01240 bool NetworkClientPreferTeamChat(const NetworkClientInfo *cio)
01241 {
01242
01243 if (!_settings_client.gui.prefer_teamchat || !Company::IsValidID(cio->client_playas)) return false;
01244
01245 const NetworkClientInfo *ci;
01246 FOR_ALL_CLIENT_INFOS(ci) {
01247 if (ci->client_playas == cio->client_playas && ci != cio) return true;
01248 }
01249
01250 return false;
01251 }
01252
01258 const char *NetworkChangeCompanyPassword(const char *password)
01259 {
01260 if (strcmp(password, "*") == 0) password = "";
01261
01262 if (!_network_server) {
01263 NetworkClientSetPassword(password);
01264 } else {
01265 HashCurrentCompanyPassword(password);
01266 }
01267
01268 return password;
01269 }
01270
01275 bool NetworkMaxCompaniesReached()
01276 {
01277 return Company::GetNumItems() >= (_network_server ? _settings_client.network.max_companies : _network_server_max_companies);
01278 }
01279
01284 bool NetworkMaxSpectatorsReached()
01285 {
01286 return NetworkSpectatorCount() >= (_network_server ? _settings_client.network.max_spectators : _network_server_max_spectators);
01287 }
01288
01292 void NetworkPrintClients()
01293 {
01294 NetworkClientInfo *ci;
01295 FOR_ALL_CLIENT_INFOS(ci) {
01296 IConsolePrintF(CC_INFO, "Client #%1d name: '%s' company: %1d IP: %s",
01297 ci->client_id,
01298 ci->client_name,
01299 ci->client_playas + (Company::IsValidID(ci->client_playas) ? 1 : 0),
01300 GetClientIP(ci));
01301 }
01302 }
01303
01304 #endif