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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++) salted_password[i] ^= _password_server_id[i] ^ (_password_game_seed >> i);
00316
00317 Md5 checksum;
00318 uint8 digest[16];
00319 static char hashed_password[NETWORK_SERVER_ID_LENGTH];
00320
00321
00322 checksum.Append((const uint8*)salted_password, sizeof(salted_password) - 1);
00323 checksum.Finish(digest);
00324
00325 for (int di = 0; di < 16; di++) sprintf(hashed_password + di * 2, "%02x", digest[di]);
00326 hashed_password[lengthof(hashed_password) - 1] = '\0';
00327
00328 return hashed_password;
00329 }
00330
00334 void HashCurrentCompanyPassword(const char *password)
00335 {
00336 _password_game_seed = _settings_game.game_creation.generation_seed;
00337 strecpy(_password_server_id, _settings_client.network.network_id, lastof(_password_server_id));
00338
00339 const char *new_pw = GenerateCompanyPasswordHash(password);
00340 strecpy(_network_company_states[_local_company].password, new_pw, lastof(_network_company_states[_local_company].password));
00341
00342 if (_network_server) {
00343 NetworkServerUpdateCompanyPassworded(_local_company, !StrEmpty(_network_company_states[_local_company].password));
00344 }
00345 }
00346
00347
00348
00349
00350
00351
00352
00353 NetworkRecvStatus ClientNetworkGameSocketHandler::SendCompanyInformationQuery()
00354 {
00355 my_client->status = STATUS_COMPANY_INFO;
00356 _network_join_status = NETWORK_JOIN_STATUS_GETTING_COMPANY_INFO;
00357 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00358
00359 Packet *p = new Packet(PACKET_CLIENT_COMPANY_INFO);
00360 my_client->SendPacket(p);
00361 return NETWORK_RECV_STATUS_OKAY;
00362 }
00363
00364 NetworkRecvStatus ClientNetworkGameSocketHandler::SendJoin()
00365 {
00366 my_client->status = STATUS_JOIN;
00367 _network_join_status = NETWORK_JOIN_STATUS_AUTHORIZING;
00368 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00369
00370 Packet *p = new Packet(PACKET_CLIENT_JOIN);
00371 p->Send_string(_openttd_revision);
00372 p->Send_string(_settings_client.network.client_name);
00373 p->Send_uint8 (_network_join_as);
00374 p->Send_uint8 (NETLANG_ANY);
00375 my_client->SendPacket(p);
00376 return NETWORK_RECV_STATUS_OKAY;
00377 }
00378
00379 NetworkRecvStatus ClientNetworkGameSocketHandler::SendNewGRFsOk()
00380 {
00381 Packet *p = new Packet(PACKET_CLIENT_NEWGRFS_CHECKED);
00382 my_client->SendPacket(p);
00383 return NETWORK_RECV_STATUS_OKAY;
00384 }
00385
00386 NetworkRecvStatus ClientNetworkGameSocketHandler::SendGamePassword(const char *password)
00387 {
00388 Packet *p = new Packet(PACKET_CLIENT_GAME_PASSWORD);
00389 p->Send_string(password);
00390 my_client->SendPacket(p);
00391 return NETWORK_RECV_STATUS_OKAY;
00392 }
00393
00394 NetworkRecvStatus ClientNetworkGameSocketHandler::SendCompanyPassword(const char *password)
00395 {
00396 Packet *p = new Packet(PACKET_CLIENT_COMPANY_PASSWORD);
00397 p->Send_string(GenerateCompanyPasswordHash(password));
00398 my_client->SendPacket(p);
00399 return NETWORK_RECV_STATUS_OKAY;
00400 }
00401
00402 NetworkRecvStatus ClientNetworkGameSocketHandler::SendGetMap()
00403 {
00404 my_client->status = STATUS_MAP_WAIT;
00405
00406 Packet *p = new Packet(PACKET_CLIENT_GETMAP);
00407
00408
00409
00410
00411
00412
00413 if (HasBit(_openttd_newgrf_version, 19)) p->Send_uint32(_openttd_newgrf_version);
00414 my_client->SendPacket(p);
00415 return NETWORK_RECV_STATUS_OKAY;
00416 }
00417
00418 NetworkRecvStatus ClientNetworkGameSocketHandler::SendMapOk()
00419 {
00420 my_client->status = STATUS_ACTIVE;
00421
00422 Packet *p = new Packet(PACKET_CLIENT_MAP_OK);
00423 my_client->SendPacket(p);
00424 return NETWORK_RECV_STATUS_OKAY;
00425 }
00426
00427 NetworkRecvStatus ClientNetworkGameSocketHandler::SendAck()
00428 {
00429 Packet *p = new Packet(PACKET_CLIENT_ACK);
00430
00431 p->Send_uint32(_frame_counter);
00432 p->Send_uint8 (my_client->token);
00433 my_client->SendPacket(p);
00434 return NETWORK_RECV_STATUS_OKAY;
00435 }
00436
00437
00438 NetworkRecvStatus ClientNetworkGameSocketHandler::SendCommand(const CommandPacket *cp)
00439 {
00440 Packet *p = new Packet(PACKET_CLIENT_COMMAND);
00441 my_client->NetworkGameSocketHandler::SendCommand(p, cp);
00442
00443 my_client->SendPacket(p);
00444 return NETWORK_RECV_STATUS_OKAY;
00445 }
00446
00447
00448 NetworkRecvStatus ClientNetworkGameSocketHandler::SendChat(NetworkAction action, DestType type, int dest, const char *msg, int64 data)
00449 {
00450 Packet *p = new Packet(PACKET_CLIENT_CHAT);
00451
00452 p->Send_uint8 (action);
00453 p->Send_uint8 (type);
00454 p->Send_uint32(dest);
00455 p->Send_string(msg);
00456 p->Send_uint64(data);
00457
00458 my_client->SendPacket(p);
00459 return NETWORK_RECV_STATUS_OKAY;
00460 }
00461
00462
00463 NetworkRecvStatus ClientNetworkGameSocketHandler::SendError(NetworkErrorCode errorno)
00464 {
00465 Packet *p = new Packet(PACKET_CLIENT_ERROR);
00466
00467 p->Send_uint8(errorno);
00468 my_client->SendPacket(p);
00469 return NETWORK_RECV_STATUS_OKAY;
00470 }
00471
00472 NetworkRecvStatus ClientNetworkGameSocketHandler::SendSetPassword(const char *password)
00473 {
00474 Packet *p = new Packet(PACKET_CLIENT_SET_PASSWORD);
00475
00476 p->Send_string(GenerateCompanyPasswordHash(password));
00477 my_client->SendPacket(p);
00478 return NETWORK_RECV_STATUS_OKAY;
00479 }
00480
00481 NetworkRecvStatus ClientNetworkGameSocketHandler::SendSetName(const char *name)
00482 {
00483 Packet *p = new Packet(PACKET_CLIENT_SET_NAME);
00484
00485 p->Send_string(name);
00486 my_client->SendPacket(p);
00487 return NETWORK_RECV_STATUS_OKAY;
00488 }
00489
00490 NetworkRecvStatus ClientNetworkGameSocketHandler::SendQuit()
00491 {
00492 Packet *p = new Packet(PACKET_CLIENT_QUIT);
00493
00494 my_client->SendPacket(p);
00495 return NETWORK_RECV_STATUS_OKAY;
00496 }
00497
00498 NetworkRecvStatus ClientNetworkGameSocketHandler::SendRCon(const char *pass, const char *command)
00499 {
00500 Packet *p = new Packet(PACKET_CLIENT_RCON);
00501 p->Send_string(pass);
00502 p->Send_string(command);
00503 my_client->SendPacket(p);
00504 return NETWORK_RECV_STATUS_OKAY;
00505 }
00506
00507 NetworkRecvStatus ClientNetworkGameSocketHandler::SendMove(CompanyID company, const char *pass)
00508 {
00509 Packet *p = new Packet(PACKET_CLIENT_MOVE);
00510 p->Send_uint8(company);
00511 p->Send_string(GenerateCompanyPasswordHash(pass));
00512 my_client->SendPacket(p);
00513 return NETWORK_RECV_STATUS_OKAY;
00514 }
00515
00516
00517
00518
00519
00520
00521
00522 extern bool SafeLoad(const char *filename, int mode, GameMode newgm, Subdirectory subdir, struct LoadFilter *lf = NULL);
00523 extern StringID _switch_mode_errorstr;
00524
00525 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_FULL)
00526 {
00527
00528 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_FULL;
00529 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00530
00531 return NETWORK_RECV_STATUS_SERVER_FULL;
00532 }
00533
00534 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_BANNED)
00535 {
00536
00537 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_BANNED;
00538 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00539
00540 return NETWORK_RECV_STATUS_SERVER_BANNED;
00541 }
00542
00543 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_COMPANY_INFO)
00544 {
00545 if (this->status != STATUS_COMPANY_INFO) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00546
00547 byte company_info_version = p->Recv_uint8();
00548
00549 if (!this->HasClientQuit() && company_info_version == NETWORK_COMPANY_INFO_VERSION) {
00550
00551 if (!p->Recv_bool()) return NETWORK_RECV_STATUS_CLOSE_QUERY;
00552
00553 CompanyID current = (Owner)p->Recv_uint8();
00554 if (current >= MAX_COMPANIES) return NETWORK_RECV_STATUS_CLOSE_QUERY;
00555
00556 NetworkCompanyInfo *company_info = GetLobbyCompanyInfo(current);
00557 if (company_info == NULL) return NETWORK_RECV_STATUS_CLOSE_QUERY;
00558
00559 p->Recv_string(company_info->company_name, sizeof(company_info->company_name));
00560 company_info->inaugurated_year = p->Recv_uint32();
00561 company_info->company_value = p->Recv_uint64();
00562 company_info->money = p->Recv_uint64();
00563 company_info->income = p->Recv_uint64();
00564 company_info->performance = p->Recv_uint16();
00565 company_info->use_password = p->Recv_bool();
00566 for (uint i = 0; i < NETWORK_VEH_END; i++) {
00567 company_info->num_vehicle[i] = p->Recv_uint16();
00568 }
00569 for (uint i = 0; i < NETWORK_VEH_END; i++) {
00570 company_info->num_station[i] = p->Recv_uint16();
00571 }
00572 company_info->ai = p->Recv_bool();
00573
00574 p->Recv_string(company_info->clients, sizeof(company_info->clients));
00575
00576 SetWindowDirty(WC_NETWORK_WINDOW, 0);
00577
00578 return NETWORK_RECV_STATUS_OKAY;
00579 }
00580
00581 return NETWORK_RECV_STATUS_CLOSE_QUERY;
00582 }
00583
00584
00585
00586
00587 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CLIENT_INFO)
00588 {
00589 NetworkClientInfo *ci;
00590 ClientID client_id = (ClientID)p->Recv_uint32();
00591 CompanyID playas = (CompanyID)p->Recv_uint8();
00592 char name[NETWORK_NAME_LENGTH];
00593
00594 p->Recv_string(name, sizeof(name));
00595
00596 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00597 if (this->HasClientQuit()) return NETWORK_RECV_STATUS_CONN_LOST;
00598
00599 ci = NetworkFindClientInfoFromClientID(client_id);
00600 if (ci != NULL) {
00601 if (playas == ci->client_playas && strcmp(name, ci->client_name) != 0) {
00602
00603 NetworkTextMessage(NETWORK_ACTION_NAME_CHANGE, CC_DEFAULT, false, ci->client_name, name);
00604 } else if (playas != ci->client_playas) {
00605
00606
00607 }
00608
00609
00610
00611 if (client_id == _network_own_client_id) SetLocalCompany(!Company::IsValidID(playas) ? COMPANY_SPECTATOR : playas);
00612
00613 ci->client_playas = playas;
00614 strecpy(ci->client_name, name, lastof(ci->client_name));
00615
00616 SetWindowDirty(WC_CLIENT_LIST, 0);
00617
00618 return NETWORK_RECV_STATUS_OKAY;
00619 }
00620
00621
00622 ci = new NetworkClientInfo(client_id);
00623 ci->client_playas = playas;
00624 if (client_id == _network_own_client_id) this->SetInfo(ci);
00625
00626 strecpy(ci->client_name, name, lastof(ci->client_name));
00627
00628 SetWindowDirty(WC_CLIENT_LIST, 0);
00629
00630 return NETWORK_RECV_STATUS_OKAY;
00631 }
00632
00633 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_ERROR)
00634 {
00635 NetworkErrorCode error = (NetworkErrorCode)p->Recv_uint8();
00636
00637 switch (error) {
00638
00639 case NETWORK_ERROR_NOT_AUTHORIZED:
00640 case NETWORK_ERROR_NOT_EXPECTED:
00641 case NETWORK_ERROR_COMPANY_MISMATCH:
00642 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_ERROR;
00643 break;
00644 case NETWORK_ERROR_FULL:
00645 _switch_mode_errorstr = STR_NETWORK_ERROR_SERVER_FULL;
00646 break;
00647 case NETWORK_ERROR_WRONG_REVISION:
00648 _switch_mode_errorstr = STR_NETWORK_ERROR_WRONG_REVISION;
00649 break;
00650 case NETWORK_ERROR_WRONG_PASSWORD:
00651 _switch_mode_errorstr = STR_NETWORK_ERROR_WRONG_PASSWORD;
00652 break;
00653 case NETWORK_ERROR_KICKED:
00654 _switch_mode_errorstr = STR_NETWORK_ERROR_KICKED;
00655 break;
00656 case NETWORK_ERROR_CHEATER:
00657 _switch_mode_errorstr = STR_NETWORK_ERROR_CHEATER;
00658 break;
00659 case NETWORK_ERROR_TOO_MANY_COMMANDS:
00660 _switch_mode_errorstr = STR_NETWORK_ERROR_TOO_MANY_COMMANDS;
00661 break;
00662 default:
00663 _switch_mode_errorstr = STR_NETWORK_ERROR_LOSTCONNECTION;
00664 }
00665
00666 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00667
00668 return NETWORK_RECV_STATUS_SERVER_ERROR;
00669 }
00670
00671 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CHECK_NEWGRFS)
00672 {
00673 if (this->status != STATUS_JOIN) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00674
00675 uint grf_count = p->Recv_uint8();
00676 NetworkRecvStatus ret = NETWORK_RECV_STATUS_OKAY;
00677
00678
00679 for (; grf_count > 0; grf_count--) {
00680 GRFIdentifier c;
00681 this->ReceiveGRFIdentifier(p, &c);
00682
00683
00684 const GRFConfig *f = FindGRFConfig(c.grfid, FGCM_EXACT, c.md5sum);
00685 if (f == NULL) {
00686
00687 char buf[sizeof(c.md5sum) * 2 + 1];
00688 md5sumToString(buf, lastof(buf), c.md5sum);
00689 DEBUG(grf, 0, "NewGRF %08X not found; checksum %s", BSWAP32(c.grfid), buf);
00690 ret = NETWORK_RECV_STATUS_NEWGRF_MISMATCH;
00691 }
00692 }
00693
00694 if (ret == NETWORK_RECV_STATUS_OKAY) {
00695
00696 return SendNewGRFsOk();
00697 }
00698
00699
00700 _switch_mode_errorstr = STR_NETWORK_ERROR_NEWGRF_MISMATCH;
00701 return ret;
00702 }
00703
00704 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_NEED_GAME_PASSWORD)
00705 {
00706 if (this->status < STATUS_JOIN || this->status >= STATUS_AUTH_GAME) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00707 this->status = STATUS_AUTH_GAME;
00708
00709 const char *password = _network_join_server_password;
00710 if (!StrEmpty(password)) {
00711 return SendGamePassword(password);
00712 }
00713
00714 ShowNetworkNeedPassword(NETWORK_GAME_PASSWORD);
00715
00716 return NETWORK_RECV_STATUS_OKAY;
00717 }
00718
00719 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_NEED_COMPANY_PASSWORD)
00720 {
00721 if (this->status < STATUS_JOIN || this->status >= STATUS_AUTH_COMPANY) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00722 this->status = STATUS_AUTH_COMPANY;
00723
00724 _password_game_seed = p->Recv_uint32();
00725 p->Recv_string(_password_server_id, sizeof(_password_server_id));
00726 if (this->HasClientQuit()) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00727
00728 const char *password = _network_join_company_password;
00729 if (!StrEmpty(password)) {
00730 return SendCompanyPassword(password);
00731 }
00732
00733 ShowNetworkNeedPassword(NETWORK_COMPANY_PASSWORD);
00734
00735 return NETWORK_RECV_STATUS_OKAY;
00736 }
00737
00738 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_WELCOME)
00739 {
00740 if (this->status < STATUS_JOIN || this->status >= STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00741 this->status = STATUS_AUTHORIZED;
00742
00743 _network_own_client_id = (ClientID)p->Recv_uint32();
00744
00745
00746 _password_game_seed = p->Recv_uint32();
00747 p->Recv_string(_password_server_id, sizeof(_password_server_id));
00748
00749
00750 return SendGetMap();
00751 }
00752
00753 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_WAIT)
00754 {
00755 if (this->status != STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00756 this->status = STATUS_MAP_WAIT;
00757
00758 _network_join_status = NETWORK_JOIN_STATUS_WAITING;
00759 _network_join_waiting = p->Recv_uint8();
00760 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00761
00762
00763 DEBUG(net, 1, "The server is currently busy sending the map to someone else, please wait..." );
00764 DEBUG(net, 1, "There are %d clients in front of you", _network_join_waiting);
00765
00766 return NETWORK_RECV_STATUS_OKAY;
00767 }
00768
00769 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_BEGIN)
00770 {
00771 if (this->status < STATUS_AUTHORIZED || this->status >= STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00772 this->status = STATUS_MAP;
00773
00774 if (this->savegame != NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00775
00776 this->savegame = new PacketReader();
00777
00778 _frame_counter = _frame_counter_server = _frame_counter_max = p->Recv_uint32();
00779
00780 _network_join_bytes = 0;
00781 _network_join_bytes_total = 0;
00782
00783 _network_join_status = NETWORK_JOIN_STATUS_DOWNLOADING;
00784 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00785
00786 return NETWORK_RECV_STATUS_OKAY;
00787 }
00788
00789 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_SIZE)
00790 {
00791 if (this->status != STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00792 if (this->savegame == NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00793
00794 _network_join_bytes_total = p->Recv_uint32();
00795 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00796
00797 return NETWORK_RECV_STATUS_OKAY;
00798 }
00799
00800 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_DATA)
00801 {
00802 if (this->status != STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00803 if (this->savegame == NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00804
00805
00806 this->savegame->AddPacket(p);
00807
00808 _network_join_bytes = (uint32)this->savegame->written_bytes;
00809 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00810
00811 return NETWORK_RECV_STATUS_OKAY;
00812 }
00813
00814 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MAP_DONE)
00815 {
00816 if (this->status != STATUS_MAP) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00817 if (this->savegame == NULL) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00818
00819 _network_join_status = NETWORK_JOIN_STATUS_PROCESSING;
00820 SetWindowDirty(WC_NETWORK_STATUS_WINDOW, 0);
00821
00822
00823
00824
00825
00826
00827
00828
00829 LoadFilter *lf = this->savegame;
00830 this->savegame = NULL;
00831 lf->Reset();
00832
00833
00834 bool load_success = SafeLoad(NULL, SL_LOAD, GM_NORMAL, NO_DIRECTORY, lf);
00835
00836
00837 this->last_packet = _realtime_tick;
00838
00839 if (!load_success) {
00840 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00841 _switch_mode_errorstr = STR_NETWORK_ERROR_SAVEGAMEERROR;
00842 return NETWORK_RECV_STATUS_SAVEGAME;
00843 }
00844
00845
00846
00847
00848 SendMapOk();
00849
00850
00851
00852 if (_network_join_as == COMPANY_NEW_COMPANY || !Company::IsValidID(_network_join_as)) {
00853 SetLocalCompany(COMPANY_SPECTATOR);
00854
00855 if (_network_join_as != COMPANY_SPECTATOR) {
00856
00857
00858 _network_join_status = NETWORK_JOIN_STATUS_REGISTERING;
00859 ShowJoinStatusWindow();
00860 NetworkSendCommand(0, 0, 0, CMD_COMPANY_CTRL, NULL, NULL, _local_company);
00861 }
00862 } else {
00863
00864 SetLocalCompany(_network_join_as);
00865 }
00866
00867 return NETWORK_RECV_STATUS_OKAY;
00868 }
00869
00870 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_FRAME)
00871 {
00872 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00873
00874 _frame_counter_server = p->Recv_uint32();
00875 _frame_counter_max = p->Recv_uint32();
00876 #ifdef ENABLE_NETWORK_SYNC_EVERY_FRAME
00877
00878
00879 if (p->pos + 1 < p->size) {
00880 _sync_frame = _frame_counter_server;
00881 _sync_seed_1 = p->Recv_uint32();
00882 #ifdef NETWORK_SEND_DOUBLE_SEED
00883 _sync_seed_2 = p->Recv_uint32();
00884 #endif
00885 }
00886 #endif
00887
00888 if (p->pos != p->size) this->token = p->Recv_uint8();
00889
00890 DEBUG(net, 5, "Received FRAME %d", _frame_counter_server);
00891
00892
00893
00894 if (!_network_first_time && last_ack_frame < _frame_counter) {
00895 last_ack_frame = _frame_counter + DAY_TICKS;
00896 DEBUG(net, 4, "Sent ACK at %d", _frame_counter);
00897 SendAck();
00898 }
00899
00900 return NETWORK_RECV_STATUS_OKAY;
00901 }
00902
00903 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_SYNC)
00904 {
00905 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00906
00907 _sync_frame = p->Recv_uint32();
00908 _sync_seed_1 = p->Recv_uint32();
00909 #ifdef NETWORK_SEND_DOUBLE_SEED
00910 _sync_seed_2 = p->Recv_uint32();
00911 #endif
00912
00913 return NETWORK_RECV_STATUS_OKAY;
00914 }
00915
00916 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_COMMAND)
00917 {
00918 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00919
00920 CommandPacket cp;
00921 const char *err = this->ReceiveCommand(p, &cp);
00922 cp.frame = p->Recv_uint32();
00923 cp.my_cmd = p->Recv_bool();
00924
00925 if (err != NULL) {
00926 IConsolePrintF(CC_ERROR, "WARNING: %s from server, dropping...", err);
00927 return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00928 }
00929
00930 this->incoming_queue.Append(&cp);
00931
00932 return NETWORK_RECV_STATUS_OKAY;
00933 }
00934
00935 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CHAT)
00936 {
00937 if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00938
00939 char name[NETWORK_NAME_LENGTH], msg[NETWORK_CHAT_LENGTH];
00940 const NetworkClientInfo *ci = NULL, *ci_to;
00941
00942 NetworkAction action = (NetworkAction)p->Recv_uint8();
00943 ClientID client_id = (ClientID)p->Recv_uint32();
00944 bool self_send = p->Recv_bool();
00945 p->Recv_string(msg, NETWORK_CHAT_LENGTH);
00946 int64 data = p->Recv_uint64();
00947
00948 ci_to = NetworkFindClientInfoFromClientID(client_id);
00949 if (ci_to == NULL) return NETWORK_RECV_STATUS_OKAY;
00950
00951
00952 if (self_send) {
00953 switch (action) {
00954 case NETWORK_ACTION_CHAT_CLIENT:
00955
00956 snprintf(name, sizeof(name), "%s", ci_to->client_name);
00957 ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
00958 break;
00959
00960
00961 case NETWORK_ACTION_GIVE_MONEY:
00962 if (!Company::IsValidID(ci_to->client_playas)) return NETWORK_RECV_STATUS_OKAY;
00963
00964 case NETWORK_ACTION_CHAT_COMPANY: {
00965 StringID str = Company::IsValidID(ci_to->client_playas) ? STR_COMPANY_NAME : STR_NETWORK_SPECTATORS;
00966 SetDParam(0, ci_to->client_playas);
00967
00968 GetString(name, str, lastof(name));
00969 ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
00970 break;
00971 }
00972
00973 default: return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00974 }
00975 } else {
00976
00977 snprintf(name, sizeof(name), "%s", ci_to->client_name);
00978 ci = ci_to;
00979 }
00980
00981 if (ci != NULL) {
00982 NetworkTextMessage(action, (ConsoleColour)GetDrawStringCompanyColour(ci->client_playas), self_send, name, msg, data);
00983 }
00984 return NETWORK_RECV_STATUS_OKAY;
00985 }
00986
00987 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_ERROR_QUIT)
00988 {
00989 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
00990
00991 ClientID client_id = (ClientID)p->Recv_uint32();
00992
00993 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
00994 if (ci != NULL) {
00995 NetworkTextMessage(NETWORK_ACTION_LEAVE, CC_DEFAULT, false, ci->client_name, NULL, GetNetworkErrorMsg((NetworkErrorCode)p->Recv_uint8()));
00996 delete ci;
00997 }
00998
00999 SetWindowDirty(WC_CLIENT_LIST, 0);
01000
01001 return NETWORK_RECV_STATUS_OKAY;
01002 }
01003
01004 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_QUIT)
01005 {
01006 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01007
01008 ClientID client_id = (ClientID)p->Recv_uint32();
01009
01010 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
01011 if (ci != NULL) {
01012 NetworkTextMessage(NETWORK_ACTION_LEAVE, CC_DEFAULT, false, ci->client_name, NULL, STR_NETWORK_MESSAGE_CLIENT_LEAVING);
01013 delete ci;
01014 } else {
01015 DEBUG(net, 0, "Unknown client (%d) is leaving the game", client_id);
01016 }
01017
01018 SetWindowDirty(WC_CLIENT_LIST, 0);
01019
01020
01021 return NETWORK_RECV_STATUS_OKAY;
01022 }
01023
01024 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_JOIN)
01025 {
01026 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01027
01028 ClientID client_id = (ClientID)p->Recv_uint32();
01029
01030 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
01031 if (ci != NULL) {
01032 NetworkTextMessage(NETWORK_ACTION_JOIN, CC_DEFAULT, false, ci->client_name);
01033 }
01034
01035 SetWindowDirty(WC_CLIENT_LIST, 0);
01036
01037 return NETWORK_RECV_STATUS_OKAY;
01038 }
01039
01040 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_SHUTDOWN)
01041 {
01042
01043
01044 if (this->status >= STATUS_JOIN) {
01045 _switch_mode_errorstr = STR_NETWORK_MESSAGE_SERVER_SHUTDOWN;
01046 }
01047
01048 return NETWORK_RECV_STATUS_SERVER_ERROR;
01049 }
01050
01051 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_NEWGAME)
01052 {
01053
01054
01055 if (this->status >= STATUS_JOIN) {
01056
01057
01058
01059 _network_reconnect = _network_own_client_id % 16;
01060 _switch_mode_errorstr = STR_NETWORK_MESSAGE_SERVER_REBOOT;
01061 }
01062
01063 return NETWORK_RECV_STATUS_SERVER_ERROR;
01064 }
01065
01066 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_RCON)
01067 {
01068 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01069
01070 char rcon_out[NETWORK_RCONCOMMAND_LENGTH];
01071
01072 ConsoleColour colour_code = (ConsoleColour)p->Recv_uint16();
01073 p->Recv_string(rcon_out, sizeof(rcon_out));
01074
01075 IConsolePrint(colour_code, rcon_out);
01076
01077 return NETWORK_RECV_STATUS_OKAY;
01078 }
01079
01080 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MOVE)
01081 {
01082 if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01083
01084
01085 ClientID client_id = (ClientID)p->Recv_uint32();
01086 CompanyID company_id = (CompanyID)p->Recv_uint8();
01087
01088 if (client_id == 0) {
01089
01090 DEBUG(net, 0, "[move] received invalid client index = 0");
01091 return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01092 }
01093
01094 const NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
01095
01096 if (ci == NULL) return NETWORK_RECV_STATUS_OKAY;
01097
01098
01099 if (!Company::IsValidID(company_id)) company_id = COMPANY_SPECTATOR;
01100
01101 if (client_id == _network_own_client_id) {
01102 SetLocalCompany(company_id);
01103 }
01104
01105 return NETWORK_RECV_STATUS_OKAY;
01106 }
01107
01108 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CONFIG_UPDATE)
01109 {
01110 if (this->status < STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01111
01112 _network_server_max_companies = p->Recv_uint8();
01113 _network_server_max_spectators = p->Recv_uint8();
01114
01115 return NETWORK_RECV_STATUS_OKAY;
01116 }
01117
01118 DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_COMPANY_UPDATE)
01119 {
01120 if (this->status < STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
01121
01122 _network_company_passworded = p->Recv_uint16();
01123 SetWindowClassesDirty(WC_COMPANY);
01124
01125 return NETWORK_RECV_STATUS_OKAY;
01126 }
01127
01131 void ClientNetworkGameSocketHandler::CheckConnection()
01132 {
01133
01134 if (this->status < STATUS_AUTHORIZED) return;
01135
01136
01137 if (_realtime_tick < this->last_packet) this->last_packet = _realtime_tick;
01138
01139
01140
01141 uint lag = (_realtime_tick - this->last_packet) / 1000;
01142 if (lag < 5) return;
01143
01144
01145
01146 if (lag > 20) {
01147 this->NetworkGameSocketHandler::CloseConnection();
01148 _switch_mode_errorstr = STR_NETWORK_ERROR_LOSTCONNECTION;
01149 return;
01150 }
01151
01152
01153 static uint last_lag = 0;
01154 if (last_lag == lag) return;
01155
01156 last_lag = lag;
01157 SetDParam(0, lag);
01158 ShowErrorMessage(STR_NETWORK_ERROR_CLIENT_GUI_LOST_CONNECTION_CAPTION, STR_NETWORK_ERROR_CLIENT_GUI_LOST_CONNECTION, WL_INFO);
01159 }
01160
01161
01162
01163 void NetworkClient_Connected()
01164 {
01165
01166 _frame_counter = 0;
01167 _frame_counter_server = 0;
01168 last_ack_frame = 0;
01169
01170 MyClient::SendJoin();
01171 }
01172
01173 void NetworkClientSendRcon(const char *password, const char *command)
01174 {
01175 MyClient::SendRCon(password, command);
01176 }
01177
01184 void NetworkClientRequestMove(CompanyID company_id, const char *pass)
01185 {
01186 MyClient::SendMove(company_id, pass);
01187 }
01188
01189 void NetworkClientsToSpectators(CompanyID cid)
01190 {
01191
01192 if (cid == _local_company) SetLocalCompany(COMPANY_SPECTATOR);
01193
01194 NetworkClientInfo *ci;
01195 FOR_ALL_CLIENT_INFOS(ci) {
01196 if (ci->client_playas != cid) continue;
01197 NetworkTextMessage(NETWORK_ACTION_COMPANY_SPECTATOR, CC_DEFAULT, false, ci->client_name);
01198 ci->client_playas = COMPANY_SPECTATOR;
01199 }
01200 }
01201
01202 void NetworkUpdateClientName()
01203 {
01204 NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
01205
01206 if (ci == NULL) return;
01207
01208
01209 if (strcmp(ci->client_name, _settings_client.network.client_name) != 0) {
01210 if (!_network_server) {
01211 MyClient::SendSetName(_settings_client.network.client_name);
01212 } else {
01213 if (NetworkFindName(_settings_client.network.client_name)) {
01214 NetworkTextMessage(NETWORK_ACTION_NAME_CHANGE, CC_DEFAULT, false, ci->client_name, _settings_client.network.client_name);
01215 strecpy(ci->client_name, _settings_client.network.client_name, lastof(ci->client_name));
01216 NetworkUpdateClientInfo(CLIENT_ID_SERVER);
01217 }
01218 }
01219 }
01220 }
01221
01222 void NetworkClientSendChat(NetworkAction action, DestType type, int dest, const char *msg, int64 data)
01223 {
01224 MyClient::SendChat(action, type, dest, msg, data);
01225 }
01226
01227 static void NetworkClientSetPassword(const char *password)
01228 {
01229 MyClient::SendSetPassword(password);
01230 }
01231
01237 bool NetworkClientPreferTeamChat(const NetworkClientInfo *cio)
01238 {
01239
01240 if (!_settings_client.gui.prefer_teamchat || !Company::IsValidID(cio->client_playas)) return false;
01241
01242 const NetworkClientInfo *ci;
01243 FOR_ALL_CLIENT_INFOS(ci) {
01244 if (ci->client_playas == cio->client_playas && ci != cio) return true;
01245 }
01246
01247 return false;
01248 }
01249
01255 const char *NetworkChangeCompanyPassword(const char *password)
01256 {
01257 if (strcmp(password, "*") == 0) password = "";
01258
01259 if (!_network_server) {
01260 NetworkClientSetPassword(password);
01261 } else {
01262 HashCurrentCompanyPassword(password);
01263 }
01264
01265 return password;
01266 }
01267
01272 bool NetworkMaxCompaniesReached()
01273 {
01274 return Company::GetNumItems() >= (_network_server ? _settings_client.network.max_companies : _network_server_max_companies);
01275 }
01276
01281 bool NetworkMaxSpectatorsReached()
01282 {
01283 return NetworkSpectatorCount() >= (_network_server ? _settings_client.network.max_spectators : _network_server_max_spectators);
01284 }
01285
01289 void NetworkPrintClients()
01290 {
01291 NetworkClientInfo *ci;
01292 FOR_ALL_CLIENT_INFOS(ci) {
01293 IConsolePrintF(CC_INFO, "Client #%1d name: '%s' company: %1d IP: %s",
01294 ci->client_id,
01295 ci->client_name,
01296 ci->client_playas + (Company::IsValidID(ci->client_playas) ? 1 : 0),
01297 GetClientIP(ci));
01298 }
01299 }
01300
01301 #endif