summaryrefslogtreecommitdiff
path: root/src/network/network_admin.cpp
blob: c1ca3d3bb22f7b7c8e03a4d59151de76400b4528 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
/* $Id$ */

/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file network_admin.cpp Server part of the admin network protocol. */

#ifdef ENABLE_NETWORK

#include "../stdafx.h"
#include "../strings_func.h"
#include "../date_func.h"
#include "network_admin.h"
#include "network_base.h"
#include "network_server.h"
#include "../command_func.h"
#include "../company_base.h"
#include "../console_func.h"
#include "../core/pool_func.hpp"
#include "../map_func.h"
#include "../rev.h"
#include "../game/game.hpp"

#include "../safeguards.h"


/* This file handles all the admin network commands. */

/** Redirection of the (remote) console to the admin. */
AdminIndex _redirect_console_to_admin = INVALID_ADMIN_ID;

/** The amount of admins connected. */
byte _network_admins_connected = 0;

/** The pool with sockets/clients. */
NetworkAdminSocketPool _networkadminsocket_pool("NetworkAdminSocket");
INSTANTIATE_POOL_METHODS(NetworkAdminSocket)

/** The timeout for authorisation of the client. */
static const int ADMIN_AUTHORISATION_TIMEOUT = 10000;


/** Frequencies, which may be registered for a certain update type. */
static const AdminUpdateFrequency _admin_update_type_frequencies[] = {
	ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_DAILY | ADMIN_FREQUENCY_WEEKLY | ADMIN_FREQUENCY_MONTHLY | ADMIN_FREQUENCY_QUARTERLY | ADMIN_FREQUENCY_ANUALLY, ///< ADMIN_UPDATE_DATE
	ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_AUTOMATIC,                                                                                                      ///< ADMIN_UPDATE_CLIENT_INFO
	ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_AUTOMATIC,                                                                                                      ///< ADMIN_UPDATE_COMPANY_INFO
	ADMIN_FREQUENCY_POLL |                         ADMIN_FREQUENCY_WEEKLY | ADMIN_FREQUENCY_MONTHLY | ADMIN_FREQUENCY_QUARTERLY | ADMIN_FREQUENCY_ANUALLY, ///< ADMIN_UPDATE_COMPANY_ECONOMY
	ADMIN_FREQUENCY_POLL |                         ADMIN_FREQUENCY_WEEKLY | ADMIN_FREQUENCY_MONTHLY | ADMIN_FREQUENCY_QUARTERLY | ADMIN_FREQUENCY_ANUALLY, ///< ADMIN_UPDATE_COMPANY_STATS
	                       ADMIN_FREQUENCY_AUTOMATIC,                                                                                                      ///< ADMIN_UPDATE_CHAT
	                       ADMIN_FREQUENCY_AUTOMATIC,                                                                                                      ///< ADMIN_UPDATE_CONSOLE
	ADMIN_FREQUENCY_POLL,                                                                                                                                  ///< ADMIN_UPDATE_CMD_NAMES
	                       ADMIN_FREQUENCY_AUTOMATIC,                                                                                                      ///< ADMIN_UPDATE_CMD_LOGGING
	                       ADMIN_FREQUENCY_AUTOMATIC,                                                                                                      ///< ADMIN_UPDATE_GAMESCRIPT
};
/** Sanity check. */
assert_compile(lengthof(_admin_update_type_frequencies) == ADMIN_UPDATE_END);

/**
 * Create a new socket for the server side of the admin network.
 * @param s The socket to connect with.
 */
ServerNetworkAdminSocketHandler::ServerNetworkAdminSocketHandler(SOCKET s) : NetworkAdminSocketHandler(s)
{
	_network_admins_connected++;
	this->status = ADMIN_STATUS_INACTIVE;
	this->realtime_connect = _realtime_tick;
}

/**
 * Clear everything related to this admin.
 */
ServerNetworkAdminSocketHandler::~ServerNetworkAdminSocketHandler()
{
	_network_admins_connected--;
	DEBUG(net, 1, "[admin] '%s' (%s) has disconnected", this->admin_name, this->admin_version);
	if (_redirect_console_to_admin == this->index) _redirect_console_to_admin = INVALID_ADMIN_ID;
}

/**
 * Whether a connection is allowed or not at this moment.
 * @return Whether the connection is allowed.
 */
/* static */ bool ServerNetworkAdminSocketHandler::AllowConnection()
{
	bool accept = !StrEmpty(_settings_client.network.admin_password) && _network_admins_connected < MAX_ADMINS;
	/* We can't go over the MAX_ADMINS limit here. However, if we accept
	 * the connection, there has to be space in the pool. */
	assert_compile(NetworkAdminSocketPool::MAX_SIZE == MAX_ADMINS);
	assert(!accept || ServerNetworkAdminSocketHandler::CanAllocateItem());
	return accept;
}

/** Send the packets for the server sockets. */
/* static */ void ServerNetworkAdminSocketHandler::Send()
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ADMIN_SOCKETS(as) {
		if (as->status == ADMIN_STATUS_INACTIVE && as->realtime_connect + ADMIN_AUTHORISATION_TIMEOUT < _realtime_tick) {
			DEBUG(net, 1, "[admin] Admin did not send its authorisation within %d seconds", ADMIN_AUTHORISATION_TIMEOUT / 1000);
			as->CloseConnection(true);
			continue;
		}
		if (as->writable) {
			as->SendPackets();
		}
	}
}

/**
 * Handle the acception of a connection.
 * @param s The socket of the new connection.
 * @param address The address of the peer.
 */
/* static */ void ServerNetworkAdminSocketHandler::AcceptConnection(SOCKET s, const NetworkAddress &address)
{
	ServerNetworkAdminSocketHandler *as = new ServerNetworkAdminSocketHandler(s);
	as->address = address; // Save the IP of the client
}

/***********
 * Sending functions for admin network
 ************/

/**
 * Send an error to the admin.
 * @param error The error to send.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendError(NetworkErrorCode error)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_ERROR);

	p->Send_uint8(error);
	this->SendPacket(p);

	char str[100];
	StringID strid = GetNetworkErrorMsg(error);
	GetString(str, strid, lastof(str));

	DEBUG(net, 1, "[admin] the admin '%s' (%s) made an error and has been disconnected. Reason: '%s'", this->admin_name, this->admin_version, str);

	return this->CloseConnection(true);
}

/** Send the protocol version to the admin. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendProtocol()
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_PROTOCOL);

	/* announce the protocol version */
	p->Send_uint8(NETWORK_GAME_ADMIN_VERSION);

	for (int i = 0; i < ADMIN_UPDATE_END; i++) {
		p->Send_bool  (true);
		p->Send_uint16(i);
		p->Send_uint16(_admin_update_type_frequencies[i]);
	}

	p->Send_bool(false);
	this->SendPacket(p);

	return this->SendWelcome();
}

/** Send a welcome message to the admin. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendWelcome()
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_WELCOME);

	p->Send_string(_settings_client.network.server_name);
	p->Send_string(_openttd_revision);
	p->Send_bool  (_network_dedicated);

	p->Send_string(_network_game_info.map_name);
	p->Send_uint32(_settings_game.game_creation.generation_seed);
	p->Send_uint8 (_settings_game.game_creation.landscape);
	p->Send_uint32(ConvertYMDToDate(_settings_game.game_creation.starting_year, 0, 1));
	p->Send_uint16(MapSizeX());
	p->Send_uint16(MapSizeY());

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/** Tell the admin we started a new game. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendNewGame()
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_NEWGAME);
	this->SendPacket(p);
	return NETWORK_RECV_STATUS_OKAY;
}

/** Tell the admin we're shutting down. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendShutdown()
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_SHUTDOWN);
	this->SendPacket(p);
	return NETWORK_RECV_STATUS_OKAY;
}

/** Tell the admin the date. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendDate()
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_DATE);

	p->Send_uint32(_date);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Tell the admin that a client joined.
 * @param client_id The client that joined.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientJoin(ClientID client_id)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_JOIN);

	p->Send_uint32(client_id);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Send an initial set of data from some client's information.
 * @param cs The socket of the client.
 * @param ci The information about the client.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientInfo(const NetworkClientSocket *cs, const NetworkClientInfo *ci)
{
	/* Only send data when we're a proper client, not just someone trying to query the server. */
	if (ci == NULL) return NETWORK_RECV_STATUS_OKAY;

	Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_INFO);

	p->Send_uint32(ci->client_id);
	p->Send_string(cs == NULL ? "" : const_cast<NetworkAddress &>(cs->client_address).GetHostname());
	p->Send_string(ci->client_name);
	p->Send_uint8 (ci->client_lang);
	p->Send_uint32(ci->join_date);
	p->Send_uint8 (ci->client_playas);

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}


/**
 * Send an update for some client's information.
 * @param ci The information about a client.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientUpdate(const NetworkClientInfo *ci)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_UPDATE);

	p->Send_uint32(ci->client_id);
	p->Send_string(ci->client_name);
	p->Send_uint8 (ci->client_playas);

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Tell the admin that a client quit.
 * @param client_id The client that quit.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientQuit(ClientID client_id)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_QUIT);

	p->Send_uint32(client_id);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Tell the admin that a client made an error.
 * @param client_id The client that made the error.
 * @param error The error that was made.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientError(ClientID client_id, NetworkErrorCode error)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_ERROR);

	p->Send_uint32(client_id);
	p->Send_uint8 (error);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Tell the admin that a new company was founded.
 * @param company_id The company that was founded.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyNew(CompanyID company_id)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_NEW);
	p->Send_uint8(company_id);

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Send the admin some information about a company.
 * @param c The company to send the information about.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyInfo(const Company *c)
{
	char company_name[NETWORK_COMPANY_NAME_LENGTH];
	char manager_name[NETWORK_COMPANY_NAME_LENGTH];

	SetDParam(0, c->index);
	GetString(company_name, STR_COMPANY_NAME, lastof(company_name));

	SetDParam(0, c->index);
	GetString(manager_name, STR_PRESIDENT_NAME, lastof(manager_name));

	Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_INFO);

	p->Send_uint8 (c->index);
	p->Send_string(company_name);
	p->Send_string(manager_name);
	p->Send_uint8 (c->colour);
	p->Send_bool  (NetworkCompanyIsPassworded(c->index));
	p->Send_uint32(c->inaugurated_year);
	p->Send_bool  (c->is_ai);
	p->Send_uint8 (CeilDiv(c->months_of_bankruptcy, 3)); // send as quarters_of_bankruptcy

	for (size_t i = 0; i < lengthof(c->share_owners); i++) {
		p->Send_uint8(c->share_owners[i]);
	}

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}


/**
 * Send an update about a company.
 * @param c The company to send the update of.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyUpdate(const Company *c)
{
	char company_name[NETWORK_COMPANY_NAME_LENGTH];
	char manager_name[NETWORK_COMPANY_NAME_LENGTH];

	SetDParam(0, c->index);
	GetString(company_name, STR_COMPANY_NAME, lastof(company_name));

	SetDParam(0, c->index);
	GetString(manager_name, STR_PRESIDENT_NAME, lastof(manager_name));

	Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_UPDATE);

	p->Send_uint8 (c->index);
	p->Send_string(company_name);
	p->Send_string(manager_name);
	p->Send_uint8 (c->colour);
	p->Send_bool  (NetworkCompanyIsPassworded(c->index));
	p->Send_uint8 (CeilDiv(c->months_of_bankruptcy, 3)); // send as quarters_of_bankruptcy

	for (size_t i = 0; i < lengthof(c->share_owners); i++) {
		p->Send_uint8(c->share_owners[i]);
	}

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Tell the admin that a company got removed.
 * @param company_id The company that got removed.
 * @param acrr The reason for removal, e.g. bankruptcy or merger.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyRemove(CompanyID company_id, AdminCompanyRemoveReason acrr)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_REMOVE);

	p->Send_uint8(company_id);
	p->Send_uint8(acrr);

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/** Send economic information of all companies. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyEconomy()
{
	const Company *company;
	FOR_ALL_COMPANIES(company) {
		/* Get the income. */
		Money income = 0;
		for (uint i = 0; i < lengthof(company->yearly_expenses[0]); i++) {
			income -= company->yearly_expenses[0][i];
		}

		Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_ECONOMY);

		p->Send_uint8(company->index);

		/* Current information. */
		p->Send_uint64(company->money);
		p->Send_uint64(company->current_loan);
		p->Send_uint64(income);
		p->Send_uint16(min(UINT16_MAX, company->cur_economy.delivered_cargo.GetSum<OverflowSafeInt64>()));

		/* Send stats for the last 2 quarters. */
		for (uint i = 0; i < 2; i++) {
			p->Send_uint64(company->old_economy[i].company_value);
			p->Send_uint16(company->old_economy[i].performance_history);
			p->Send_uint16(min(UINT16_MAX, company->old_economy[i].delivered_cargo.GetSum<OverflowSafeInt64>()));
		}

		this->SendPacket(p);
	}


	return NETWORK_RECV_STATUS_OKAY;
}

/** Send statistics about the companies. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyStats()
{
	/* Fetch the latest version of the stats. */
	NetworkCompanyStats company_stats[MAX_COMPANIES];
	NetworkPopulateCompanyStats(company_stats);

	const Company *company;

	/* Go through all the companies. */
	FOR_ALL_COMPANIES(company) {
		Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_STATS);

		/* Send the information. */
		p->Send_uint8(company->index);

		for (uint i = 0; i < NETWORK_VEH_END; i++) {
			p->Send_uint16(company_stats[company->index].num_vehicle[i]);
		}

		for (uint i = 0; i < NETWORK_VEH_END; i++) {
			p->Send_uint16(company_stats[company->index].num_station[i]);
		}

		this->SendPacket(p);
	}

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Send a chat message.
 * @param action The action associated with the message.
 * @param desttype The destination type.
 * @param client_id The origin of the chat message.
 * @param msg The actual message.
 * @param data Arbitrary extra data.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendChat(NetworkAction action, DestType desttype, ClientID client_id, const char *msg, int64 data)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_CHAT);

	p->Send_uint8 (action);
	p->Send_uint8 (desttype);
	p->Send_uint32(client_id);
	p->Send_string(msg);
	p->Send_uint64(data);

	this->SendPacket(p);
	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Send a notification indicating the rcon command has completed.
 * @param command The original command sent.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendRconEnd(const char *command)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_RCON_END);

	p->Send_string(command);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Send the reply of an rcon command.
 * @param colour The colour of the text.
 * @param result The result of the command.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendRcon(uint16 colour, const char *result)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_RCON);

	p->Send_uint16(colour);
	p->Send_string(result);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_RCON(Packet *p)
{
	if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);

	char command[NETWORK_RCONCOMMAND_LENGTH];

	p->Recv_string(command, sizeof(command));

	DEBUG(net, 2, "[admin] Rcon command from '%s' (%s): '%s'", this->admin_name, this->admin_version, command);

	_redirect_console_to_admin = this->index;
	IConsoleCmdExec(command);
	_redirect_console_to_admin = INVALID_ADMIN_ID;
	return this->SendRconEnd(command);
}

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_GAMESCRIPT(Packet *p)
{
	if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);

	char json[NETWORK_GAMESCRIPT_JSON_LENGTH];

	p->Recv_string(json, sizeof(json));

	DEBUG(net, 2, "[admin] GameScript JSON from '%s' (%s): '%s'", this->admin_name, this->admin_version, json);

	Game::NewEvent(new ScriptEventAdminPort(json));
	return NETWORK_RECV_STATUS_OKAY;
}

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_PING(Packet *p)
{
	if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);

	uint32 d1 = p->Recv_uint32();

	DEBUG(net, 2, "[admin] Ping from '%s' (%s): '%d'", this->admin_name, this->admin_version, d1);

	return this->SendPong(d1);
}

/**
 * Send console output of other clients.
 * @param origin The origin of the string.
 * @param string The string that's put on the console.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendConsole(const char *origin, const char *string)
{
	/* If the length of both strings, plus the 2 '\0' terminations and 3 bytes of the packet
	 * are bigger than the MTU, just ignore the message. Better safe than sorry. It should
	 * never occur though as the longest strings are chat messages, which are still 30%
	 * smaller than SEND_MTU. */
	if (strlen(origin) + strlen(string) + 2 + 3 >= SEND_MTU) return NETWORK_RECV_STATUS_OKAY;

	Packet *p = new Packet(ADMIN_PACKET_SERVER_CONSOLE);

	p->Send_string(origin);
	p->Send_string(string);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Send GameScript JSON output.
 * @param json The JSON string.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendGameScript(const char *json)
{
	/* At the moment we cannot transmit anything larger than MTU. So we limit
	 *  the maximum amount of json data that can be sent. Account also for
	 *  the trailing \0 of the string */
	if (strlen(json) + 1 >= NETWORK_GAMESCRIPT_JSON_LENGTH) return NETWORK_RECV_STATUS_OKAY;

	Packet *p = new Packet(ADMIN_PACKET_SERVER_GAMESCRIPT);

	p->Send_string(json);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/** Send ping-reply (pong) to admin **/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendPong(uint32 d1)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_PONG);

	p->Send_uint32(d1);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/** Send the names of the commands. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCmdNames()
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_CMD_NAMES);

	for (uint i = 0; i < CMD_END; i++) {
		const char *cmdname = GetCommandName(i);

		/* Should SEND_MTU be exceeded, start a new packet
		 * (magic 5: 1 bool "more data" and one uint16 "command id", one
		 * byte for string '\0' termination and 1 bool "no more data" */
		if (p->size + strlen(cmdname) + 5 >= SEND_MTU) {
			p->Send_bool(false);
			this->SendPacket(p);

			p = new Packet(ADMIN_PACKET_SERVER_CMD_NAMES);
		}

		p->Send_bool(true);
		p->Send_uint16(i);
		p->Send_string(cmdname);
	}

	/* Marker to notify the end of the packet has been reached. */
	p->Send_bool(false);
	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Send a command for logging purposes.
 * @param client_id The client executing the command.
 * @param cp The command that would be executed.
 */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCmdLogging(ClientID client_id, const CommandPacket *cp)
{
	Packet *p = new Packet(ADMIN_PACKET_SERVER_CMD_LOGGING);

	p->Send_uint32(client_id);
	p->Send_uint8 (cp->company);
	p->Send_uint16(cp->cmd & CMD_ID_MASK);
	p->Send_uint32(cp->p1);
	p->Send_uint32(cp->p2);
	p->Send_uint32(cp->tile);
	p->Send_string(cp->text);
	p->Send_uint32(cp->frame);

	this->SendPacket(p);

	return NETWORK_RECV_STATUS_OKAY;
}

/***********
 * Receiving functions
 ************/

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_JOIN(Packet *p)
{
	if (this->status != ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);

	char password[NETWORK_PASSWORD_LENGTH];
	p->Recv_string(password, sizeof(password));

	if (StrEmpty(_settings_client.network.admin_password) ||
			strcmp(password, _settings_client.network.admin_password) != 0) {
		/* Password is invalid */
		return this->SendError(NETWORK_ERROR_WRONG_PASSWORD);
	}

	p->Recv_string(this->admin_name, sizeof(this->admin_name));
	p->Recv_string(this->admin_version, sizeof(this->admin_version));

	if (StrEmpty(this->admin_name) || StrEmpty(this->admin_version)) {
		/* no name or version supplied */
		return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
	}

	this->status = ADMIN_STATUS_ACTIVE;

	DEBUG(net, 1, "[admin] '%s' (%s) has connected", this->admin_name, this->admin_version);

	return this->SendProtocol();
}

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_QUIT(Packet *p)
{
	/* The admin is leaving nothing else to do */
	return this->CloseConnection();
}

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_UPDATE_FREQUENCY(Packet *p)
{
	if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);

	AdminUpdateType type = (AdminUpdateType)p->Recv_uint16();
	AdminUpdateFrequency freq = (AdminUpdateFrequency)p->Recv_uint16();

	if (type >= ADMIN_UPDATE_END || (_admin_update_type_frequencies[type] & freq) != freq) {
		/* The server does not know of this UpdateType. */
		DEBUG(net, 3, "[admin] Not supported update frequency %d (%d) from '%s' (%s).", type, freq, this->admin_name, this->admin_version);
		return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
	}

	this->update_frequency[type] = freq;

	return NETWORK_RECV_STATUS_OKAY;
}

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_POLL(Packet *p)
{
	if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);

	AdminUpdateType type = (AdminUpdateType)p->Recv_uint8();
	uint32 d1 = p->Recv_uint32();

	switch (type) {
		case ADMIN_UPDATE_DATE:
			/* The admin is requesting the current date. */
			this->SendDate();
			break;

		case ADMIN_UPDATE_CLIENT_INFO:
			/* The admin is requesting client info. */
			const NetworkClientSocket *cs;
			if (d1 == UINT32_MAX) {
				this->SendClientInfo(NULL, NetworkClientInfo::GetByClientID(CLIENT_ID_SERVER));
				FOR_ALL_CLIENT_SOCKETS(cs) {
					this->SendClientInfo(cs, cs->GetInfo());
				}
			} else {
				if (d1 == CLIENT_ID_SERVER) {
					this->SendClientInfo(NULL, NetworkClientInfo::GetByClientID(CLIENT_ID_SERVER));
				} else {
					cs = NetworkClientSocket::GetByClientID((ClientID)d1);
					if (cs != NULL) this->SendClientInfo(cs, cs->GetInfo());
				}
			}
			break;

		case ADMIN_UPDATE_COMPANY_INFO:
			/* The admin is asking for company info. */
			const Company *company;
			if (d1 == UINT32_MAX) {
				FOR_ALL_COMPANIES(company) {
					this->SendCompanyInfo(company);
				}
			} else {
				company = Company::GetIfValid(d1);
				if (company != NULL) this->SendCompanyInfo(company);
			}
			break;

		case ADMIN_UPDATE_COMPANY_ECONOMY:
			/* The admin is requesting economy info. */
			this->SendCompanyEconomy();
			break;

		case ADMIN_UPDATE_COMPANY_STATS:
			/* the admin is requesting company stats. */
			this->SendCompanyStats();
			break;

		case ADMIN_UPDATE_CMD_NAMES:
			/* The admin is requesting the names of DoCommands. */
			this->SendCmdNames();
			break;

		default:
			/* An unsupported "poll" update type. */
			DEBUG(net, 3, "[admin] Not supported poll %d (%d) from '%s' (%s).", type, d1, this->admin_name, this->admin_version);
			return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
	}

	return NETWORK_RECV_STATUS_OKAY;
}

NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_CHAT(Packet *p)
{
	if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);

	NetworkAction action = (NetworkAction)p->Recv_uint8();
	DestType desttype = (DestType)p->Recv_uint8();
	int dest = p->Recv_uint32();

	char msg[NETWORK_CHAT_LENGTH];
	p->Recv_string(msg, NETWORK_CHAT_LENGTH);

	switch (action) {
		case NETWORK_ACTION_CHAT:
		case NETWORK_ACTION_CHAT_CLIENT:
		case NETWORK_ACTION_CHAT_COMPANY:
		case NETWORK_ACTION_SERVER_MESSAGE:
			NetworkServerSendChat(action, desttype, dest, msg, _network_own_client_id, 0, true);
			break;

		default:
			DEBUG(net, 3, "[admin] Invalid chat action %d from admin '%s' (%s).", action, this->admin_name, this->admin_version);
			return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
	}

	return NETWORK_RECV_STATUS_OKAY;
}

/*
 * Useful wrapper functions
 */

/**
 * Notify the admin network of a new client (if they did opt in for the respective update).
 * @param cs the client info.
 * @param new_client if this is a new client, send the respective packet too.
 */
void NetworkAdminClientInfo(const NetworkClientSocket *cs, bool new_client)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendClientInfo(cs, cs->GetInfo());
			if (new_client) {
				as->SendClientJoin(cs->client_id);
			}
		}
	}
}

/**
 * Notify the admin network of a client update (if they did opt in for the respective update).
 * @param ci the client info.
 */
void NetworkAdminClientUpdate(const NetworkClientInfo *ci)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendClientUpdate(ci);
		}
	}
}

/**
 * Notify the admin network that a client quit (if they have opt in for the respective update).
 * @param client_id of the client that quit.
 */
void NetworkAdminClientQuit(ClientID client_id)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendClientQuit(client_id);
		}
	}
}

/**
 * Notify the admin network of a client error (if they have opt in for the respective update).
 * @param client_id the client that made the error.
 * @param error_code the error that was caused.
 */
void NetworkAdminClientError(ClientID client_id, NetworkErrorCode error_code)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendClientError(client_id, error_code);
		}
	}
}

/**
 * Notify the admin network of company details.
 * @param company the company of which details will be sent into the admin network.
 * @param new_company whether this is a new company or not.
 */
void NetworkAdminCompanyInfo(const Company *company, bool new_company)
{
	if (company == NULL) {
		DEBUG(net, 1, "[admin] Empty company given for update");
		return;
	}

	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_COMPANY_INFO] != ADMIN_FREQUENCY_AUTOMATIC) continue;

		as->SendCompanyInfo(company);
		if (new_company) {
			as->SendCompanyNew(company->index);
		}
	}
}

/**
 * Notify the admin network of company updates.
 * @param company company of which updates are going to be sent into the admin network.
 */
void NetworkAdminCompanyUpdate(const Company *company)
{
	if (company == NULL) return;

	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_COMPANY_INFO] != ADMIN_FREQUENCY_AUTOMATIC) continue;

		as->SendCompanyUpdate(company);
	}
}

/**
 * Notify the admin network of a company to be removed (including the reason why).
 * @param company_id ID of the company that got removed.
 * @param bcrr the reason why the company got removed (e.g. bankruptcy).
 */
void NetworkAdminCompanyRemove(CompanyID company_id, AdminCompanyRemoveReason bcrr)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		as->SendCompanyRemove(company_id, bcrr);
	}
}


/**
 * Send chat to the admin network (if they did opt in for the respective update).
 */
void NetworkAdminChat(NetworkAction action, DestType desttype, ClientID client_id, const char *msg, int64 data, bool from_admin)
{
	if (from_admin) return;

	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_CHAT] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendChat(action, desttype, client_id, msg, data);
		}
	}
}

/**
 * Pass the rcon reply to the admin.
 * @param admin_index The admin to give the reply.
 * @param colour_code The colour of the string.
 * @param string      The string to show.
 */
void NetworkServerSendAdminRcon(AdminIndex admin_index, TextColour colour_code, const char *string)
{
	ServerNetworkAdminSocketHandler::Get(admin_index)->SendRcon(colour_code, string);
}

/**
 * Send console to the admin network (if they did opt in for the respective update).
 * @param origin the origin of the message.
 * @param string the message as printed on the console.
 */
void NetworkAdminConsole(const char *origin, const char *string)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_CONSOLE] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendConsole(origin, string);
		}
	}
}

/**
 * Send GameScript JSON to the admin network (if they did opt in for the respective update).
 * @param json The JSON data as received from the GameScript.
 */
void NetworkAdminGameScript(const char *json)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_GAMESCRIPT] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendGameScript(json);
		}
	}
}

/**
 * Distribute CommandPacket details over the admin network for logging purposes.
 * @param owner The owner of the CommandPacket (who sent us the CommandPacket).
 * @param cp    The CommandPacket to be distributed.
 */
void NetworkAdminCmdLogging(const NetworkClientSocket *owner, const CommandPacket *cp)
{
	ClientID client_id = owner == NULL ? _network_own_client_id : owner->client_id;

	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		if (as->update_frequency[ADMIN_UPDATE_CMD_LOGGING] & ADMIN_FREQUENCY_AUTOMATIC) {
			as->SendCmdLogging(client_id, cp);
		}
	}
}

/**
 * Send a Welcome packet to all connected admins
 */
void ServerNetworkAdminSocketHandler::WelcomeAll()
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		as->SendWelcome();
	}
}

/**
 * Send (push) updates to the admin network as they have registered for these updates.
 * @param freq the frequency to be processed.
 */
void NetworkAdminUpdate(AdminUpdateFrequency freq)
{
	ServerNetworkAdminSocketHandler *as;
	FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
		for (int i = 0; i < ADMIN_UPDATE_END; i++) {
			if (as->update_frequency[i] & freq) {
				/* Update the admin for the required details */
				switch (i) {
					case ADMIN_UPDATE_DATE:
						as->SendDate();
						break;

					case ADMIN_UPDATE_COMPANY_ECONOMY:
						as->SendCompanyEconomy();
						break;

					case ADMIN_UPDATE_COMPANY_STATS:
						as->SendCompanyStats();
						break;

					default: NOT_REACHED();
				}
			}
		}
	}
}

#endif /* ENABLE_NETWORK */