aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/mod_admin_telnet.lua
blob: ebd817b598dc745572fbf0c00c73c9195616df45 (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
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- 
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

module:set_global();

local _G = _G;

local prosody = _G.prosody;
local hosts = prosody.hosts;

local console_listener = { default_port = 5582; default_mode = "*a"; interface = "127.0.0.1" };

local hostmanager = require "core.hostmanager";
local modulemanager = require "core.modulemanager";

local iterators = require "util.iterators";
local keys, values = iterators.keys, iterators.values;
local jid = require "util.jid";
local jid_bare, jid_split = jid.bare, jid.split;
local set, array = require "util.set", require "util.array";
local cert_verify_identity = require "util.x509".verify_identity;
local envload = require "util.envload".envload;
local envloadfile = require "util.envload".envloadfile;

local commands = module:shared("commands")
local def_env = module:shared("env");
local default_env_mt = { __index = def_env };
local core_post_stanza = prosody.core_post_stanza;

local function redirect_output(_G, session)
	local env = setmetatable({ print = session.print }, { __index = function (t, k) return rawget(_G, k); end });
	env.dofile = function(name)
		local f, err = envloadfile(name, env);
		if not f then return f, err; end
		return f();
	end;
	return env;
end

console = {};

function console:new_session(conn)
	local w = function(s) conn:write(s:gsub("\n", "\r\n")); end;
	local session = { conn = conn;
			send = function (t) w(tostring(t)); end;
			print = function (...)
				local t = {};
				for i=1,select("#", ...) do
					t[i] = tostring(select(i, ...));
				end
				w("| "..table.concat(t, "\t").."\n");
			end;
			disconnect = function () conn:close(); end;
			};
	session.env = setmetatable({}, default_env_mt);
	
	-- Load up environment with helper objects
	for name, t in pairs(def_env) do
		if type(t) == "table" then
			session.env[name] = setmetatable({ session = session }, { __index = t });
		end
	end
	
	return session;
end

local sessions = {};

function console_listener.onconnect(conn)
	-- Handle new connection
	local session = console:new_session(conn);
	sessions[conn] = session;
	printbanner(session);
	session.send(string.char(0));
end

function console_listener.onincoming(conn, data)
	local session = sessions[conn];

	local partial = session.partial_data;
	if partial then
		data = partial..data;
	end

	for line in data:gmatch("[^\n]*[\n\004]") do
		-- Handle data (loop allows us to break to add \0 after response)
		repeat
			local useglobalenv;

			if line:match("^>") then
				line = line:gsub("^>", "");
				useglobalenv = true;
			elseif line == "\004" then
				commands["bye"](session, line);
				break;
			else
				local command = line:match("^%w+") or line:match("%p");
				if commands[command] then
					commands[command](session, line);
					break;
				end
			end

			session.env._ = line;
			
			local chunkname = "=console";
			local env = (useglobalenv and redirect_output(_G, session)) or session.env or nil
			local chunk, err = envload("return "..line, chunkname, env);
			if not chunk then
				chunk, err = envload(line, chunkname, env);
				if not chunk then
					err = err:gsub("^%[string .-%]:%d+: ", "");
					err = err:gsub("^:%d+: ", "");
					err = err:gsub("'<eof>'", "the end of the line");
					session.print("Sorry, I couldn't understand that... "..err);
					break;
				end
			end
		
			local ranok, taskok, message = pcall(chunk);
			
			if not (ranok or message or useglobalenv) and commands[line:lower()] then
				commands[line:lower()](session, line);
				break;
			end
			
			if not ranok then
				session.print("Fatal error while running command, it did not complete");
				session.print("Error: "..taskok);
				break;
			end
			
			if not message then
				session.print("Result: "..tostring(taskok));
				break;
			elseif (not taskok) and message then
				session.print("Command completed with a problem");
				session.print("Message: "..tostring(message));
				break;
			end
			
			session.print("OK: "..tostring(message));
		until true
		
		session.send(string.char(0));
	end
	session.partial_data = data:match("[^\n]+$");
end

function console_listener.ondisconnect(conn, err)
	local session = sessions[conn];
	if session then
		session.disconnect();
		sessions[conn] = nil;
	end
end

-- Console commands --
-- These are simple commands, not valid standalone in Lua

function commands.bye(session)
	session.print("See you! :)");
	session.disconnect();
end
commands.quit, commands.exit = commands.bye, commands.bye;

commands["!"] = function (session, data)
	if data:match("^!!") and session.env._ then
		session.print("!> "..session.env._);
		return console_listener.onincoming(session.conn, session.env._);
	end
	local old, new = data:match("^!(.-[^\\])!(.-)!$");
	if old and new then
		local ok, res = pcall(string.gsub, session.env._, old, new);
		if not ok then
			session.print(res)
			return;
		end
		session.print("!> "..res);
		return console_listener.onincoming(session.conn, res);
	end
	session.print("Sorry, not sure what you want");
end


function commands.help(session, data)
	local print = session.print;
	local section = data:match("^help (%w+)");
	if not section then
		print [[Commands are divided into multiple sections. For help on a particular section, ]]
		print [[type: help SECTION (for example, 'help c2s'). Sections are: ]]
		print [[]]
		print [[c2s - Commands to manage local client-to-server sessions]]
		print [[s2s - Commands to manage sessions between this server and others]]
		print [[module - Commands to load/reload/unload modules/plugins]]
		print [[host - Commands to activate, deactivate and list virtual hosts]]
		print [[user - Commands to create and delete users, and change their passwords]]
		print [[server - Uptime, version, shutting down, etc.]]
		print [[config - Reloading the configuration, etc.]]
		print [[console - Help regarding the console itself]]
	elseif section == "c2s" then
		print [[c2s:show(jid) - Show all client sessions with the specified JID (or all if no JID given)]]
		print [[c2s:show_insecure() - Show all unencrypted client connections]]
		print [[c2s:show_secure() - Show all encrypted client connections]]
		print [[c2s:close(jid) - Close all sessions for the specified JID]]
	elseif section == "s2s" then
		print [[s2s:show(domain) - Show all s2s connections for the given domain (or all if no domain given)]]
		print [[s2s:close(from, to) - Close a connection from one domain to another]]
		print [[s2s:closeall(host) - Close all the incoming/outgoing s2s sessions to specified host]]
	elseif section == "module" then
		print [[module:load(module, host) - Load the specified module on the specified host (or all hosts if none given)]]
		print [[module:reload(module, host) - The same, but unloads and loads the module (saving state if the module supports it)]]
		print [[module:unload(module, host) - The same, but just unloads the module from memory]]
		print [[module:list(host) - List the modules loaded on the specified host]]
	elseif section == "host" then
		print [[host:activate(hostname) - Activates the specified host]]
		print [[host:deactivate(hostname) - Disconnects all clients on this host and deactivates]]
		print [[host:list() - List the currently-activated hosts]]
	elseif section == "user" then
		print [[user:create(jid, password) - Create the specified user account]]
		print [[user:password(jid, password) - Set the password for the specified user account]]
		print [[user:delete(jid, password) - Permanently remove the specified user account]]
	elseif section == "server" then
		print [[server:version() - Show the server's version number]]
		print [[server:uptime() - Show how long the server has been running]]
		print [[server:shutdown(reason) - Shut down the server, with an optional reason to be broadcast to all connections]]
	elseif section == "config" then
		print [[config:reload() - Reload the server configuration. Modules may need to be reloaded for changes to take effect.]]
	elseif section == "console" then
		print [[Hey! Welcome to Prosody's admin console.]]
		print [[First thing, if you're ever wondering how to get out, simply type 'quit'.]]
		print [[Secondly, note that we don't support the full telnet protocol yet (it's coming)]]
		print [[so you may have trouble using the arrow keys, etc. depending on your system.]]
		print [[]]
		print [[For now we offer a couple of handy shortcuts:]]
		print [[!! - Repeat the last command]]
		print [[!old!new! - repeat the last command, but with 'old' replaced by 'new']]
		print [[]]
		print [[For those well-versed in Prosody's internals, or taking instruction from those who are,]]
		print [[you can prefix a command with > to escape the console sandbox, and access everything in]]
		print [[the running server. Great fun, but be careful not to break anything :)]]
	end
	print [[]]
end

-- Session environment --
-- Anything in def_env will be accessible within the session as a global variable

def_env.server = {};

function def_env.server:insane_reload()
	prosody.unlock_globals();
	dofile "prosody"
	prosody = _G.prosody;
	return true, "Server reloaded";
end

function def_env.server:version()
	return true, tostring(prosody.version or "unknown");
end

function def_env.server:uptime()
	local t = os.time()-prosody.start_time;
	local seconds = t%60;
	t = (t - seconds)/60;
	local minutes = t%60;
	t = (t - minutes)/60;
	local hours = t%24;
	t = (t - hours)/24;
	local days = t;
	return true, string.format("This server has been running for %d day%s, %d hour%s and %d minute%s (since %s)",
		days, (days ~= 1 and "s") or "", hours, (hours ~= 1 and "s") or "",
		minutes, (minutes ~= 1 and "s") or "", os.date("%c", prosody.start_time));
end

function def_env.server:shutdown(reason)
	prosody.shutdown(reason);
	return true, "Shutdown initiated";
end

def_env.module = {};

local function get_hosts_set(hosts, module)
	if type(hosts) == "table" then
		if hosts[1] then
			return set.new(hosts);
		elseif hosts._items then
			return hosts;
		end
	elseif type(hosts) == "string" then
		return set.new { hosts };
	elseif hosts == nil then
		local mm = require "modulemanager";
		local hosts_set = set.new(array.collect(keys(prosody.hosts)))
			/ function (host) return (prosody.hosts[host].type == "local" or module and mm.is_loaded(host, module)) and host or nil; end;
		if module and mm.get_module("*", module) then
			hosts_set:add("*");
		end
		return hosts_set;
	end
end

function def_env.module:load(name, hosts, config)
	local mm = require "modulemanager";
	
	hosts = get_hosts_set(hosts);
	
	-- Load the module for each host
	local ok, err, count, mod = true, nil, 0, nil;
	for host in hosts do
		if (not mm.is_loaded(host, name)) then
			mod, err = mm.load(host, name, config);
			if not mod then
				ok = false;
				if err == "global-module-already-loaded" then
					if count > 0 then
						ok, err, count = true, nil, 1;
					end
					break;
				end
				self.session.print(err or "Unknown error loading module");
			else
				count = count + 1;
				self.session.print("Loaded for "..mod.module.host);
			end
		end
	end
	
	return ok, (ok and "Module loaded onto "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));	
end

function def_env.module:unload(name, hosts)
	local mm = require "modulemanager";

	hosts = get_hosts_set(hosts, name);
	
	-- Unload the module for each host
	local ok, err, count = true, nil, 0;
	for host in hosts do
		if mm.is_loaded(host, name) then
			ok, err = mm.unload(host, name);
			if not ok then
				ok = false;
				self.session.print(err or "Unknown error unloading module");
			else
				count = count + 1;
				self.session.print("Unloaded from "..host);
			end
		end
	end
	return ok, (ok and "Module unloaded from "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
end

function def_env.module:reload(name, hosts)
	local mm = require "modulemanager";

	hosts = array.collect(get_hosts_set(hosts, name)):sort(function (a, b)
		if a == "*" then return true
		elseif b == "*" then return false
		else return a < b; end
	end);

	-- Reload the module for each host
	local ok, err, count = true, nil, 0;
	for _, host in ipairs(hosts) do
		if mm.is_loaded(host, name) then
			ok, err = mm.reload(host, name);
			if not ok then
				ok = false;
				self.session.print(err or "Unknown error reloading module");
			else
				count = count + 1;
				if ok == nil then
					ok = true;
				end
				self.session.print("Reloaded on "..host);
			end
		end
	end
	return ok, (ok and "Module reloaded on "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
end

function def_env.module:list(hosts)
	if hosts == nil then
		hosts = array.collect(keys(prosody.hosts));
		table.insert(hosts, 1, "*");
	end
	if type(hosts) == "string" then
		hosts = { hosts };
	end
	if type(hosts) ~= "table" then
		return false, "Please supply a host or a list of hosts you would like to see";
	end
	
	local print = self.session.print;
	for _, host in ipairs(hosts) do
		print((host == "*" and "Global" or host)..":");
		local modules = array.collect(keys(modulemanager.get_modules(host) or {})):sort();
		if #modules == 0 then
			if prosody.hosts[host] then
				print("    No modules loaded");
			else
				print("    Host not found");
			end
		else
			for _, name in ipairs(modules) do
				print("    "..name);
			end
		end
	end
end

def_env.config = {};
function def_env.config:load(filename, format)
	local config_load = require "core.configmanager".load;
	local ok, err = config_load(filename, format);
	if not ok then
		return false, err or "Unknown error loading config";
	end
	return true, "Config loaded";
end

function def_env.config:get(host, section, key)
	local config_get = require "core.configmanager".get
	return true, tostring(config_get(host, section, key));
end

function def_env.config:reload()
	local ok, err = prosody.reload_config();
	return ok, (ok and "Config reloaded (you may need to reload modules to take effect)") or tostring(err);
end

def_env.hosts = {};
function def_env.hosts:list()
	for host, host_session in pairs(hosts) do
		self.session.print(host);
	end
	return true, "Done";
end

function def_env.hosts:add(name)
end

def_env.c2s = {};

local function show_c2s(callback)
	for hostname, host in pairs(hosts) do
		for username, user in pairs(host.sessions or {}) do
			for resource, session in pairs(user.sessions or {}) do
				local jid = username.."@"..hostname.."/"..resource;
				callback(jid, session);
			end
		end
	end
end

function def_env.c2s:count(match_jid)
	local count = 0;
	show_c2s(function (jid, session)
		if (not match_jid) or jid:match(match_jid) then
			count = count + 1;
		end		
	end);
	return true, "Total: "..count.." clients";
end

function def_env.c2s:show(match_jid)
	local print, count = self.session.print, 0;
	local curr_host;
	show_c2s(function (jid, session)
		if curr_host ~= session.host then
			curr_host = session.host;
			print(curr_host);
		end
		if (not match_jid) or jid:match(match_jid) then
			count = count + 1;
			local status, priority = "unavailable", tostring(session.priority or "-");
			if session.presence then
				status = session.presence:child_with_name("show");
				if status then
					status = status:get_text() or "[invalid!]";
				else
					status = "available";
				end
			end
			print("   "..jid.." - "..status.."("..priority..")");
		end		
	end);
	return true, "Total: "..count.." clients";
end

function def_env.c2s:show_insecure(match_jid)
	local print, count = self.session.print, 0;
	show_c2s(function (jid, session)
		if ((not match_jid) or jid:match(match_jid)) and not session.secure then
			count = count + 1;
			print(jid);
		end		
	end);
	return true, "Total: "..count.." insecure client connections";
end

function def_env.c2s:show_secure(match_jid)
	local print, count = self.session.print, 0;
	show_c2s(function (jid, session)
		if ((not match_jid) or jid:match(match_jid)) and session.secure then
			count = count + 1;
			print(jid);
		end		
	end);
	return true, "Total: "..count.." secure client connections";
end

function def_env.c2s:close(match_jid)
	local print, count = self.session.print, 0;
	show_c2s(function (jid, session)
		if jid == match_jid or jid_bare(jid) == match_jid then
			count = count + 1;
			session:close();
		end
	end);
	return true, "Total: "..count.." sessions closed";
end

local function session_flags(session, line)
	if session.cert_identity_status == "valid" then
		line[#line+1] = "(secure)";
	elseif session.secure then
		line[#line+1] = "(encrypted)";
	end
	if session.compressed then
		line[#line+1] = "(compressed)";
	end
	if session.smacks then
		line[#line+1] = "(sm)";
	end
	if session.conn and session.conn:ip():match(":") then
		line[#line+1] = "(IPv6)";
	end
	return table.concat(line, " ");
end

def_env.s2s = {};
function def_env.s2s:show(match_jid)
	local _print = self.session.print;
	local print = self.session.print;
	
	local count_in, count_out = 0,0;
	
	for host, host_session in pairs(hosts) do
		print = function (...) _print(host); _print(...); print = _print; end
		for remotehost, session in pairs(host_session.s2sout) do
			if (not match_jid) or remotehost:match(match_jid) or host:match(match_jid) then
				count_out = count_out + 1;
				print(session_flags(session, {"   ", host, "->", remotehost}));
				if session.sendq then
					print("        There are "..#session.sendq.." queued outgoing stanzas for this connection");
				end
				if session.type == "s2sout_unauthed" then
					if session.connecting then
						print("        Connection not yet established");
						if not session.srv_hosts then
							if not session.conn then
								print("        We do not yet have a DNS answer for this host's SRV records");
							else
								print("        This host has no SRV records, using A record instead");
							end
						elseif session.srv_choice then
							print("        We are on SRV record "..session.srv_choice.." of "..#session.srv_hosts);
							local srv_choice = session.srv_hosts[session.srv_choice];
							print("        Using "..(srv_choice.target or ".")..":"..(srv_choice.port or 5269));
						end
					elseif session.notopen then
						print("        The <stream> has not yet been opened");
					elseif not session.dialback_key then
						print("        Dialback has not been initiated yet");
					elseif session.dialback_key then
						print("        Dialback has been requested, but no result received");
					end
				end
			end
		end	
		local subhost_filter = function (h)
				return (match_jid and h:match(match_jid));
			end
		for session in pairs(incoming_s2s) do
			if session.to_host == host and ((not match_jid) or host:match(match_jid)
				or (session.from_host and session.from_host:match(match_jid))
				-- Pft! is what I say to list comprehensions
				or (session.hosts and #array.collect(keys(session.hosts)):filter(subhost_filter)>0)) then
				count_in = count_in + 1;
				print(session_flags(session, {"   ", host, "<-", session.from_host or "(unknown)"}));
				if session.type == "s2sin_unauthed" then
						print("        Connection not yet authenticated");
				end
				for name in pairs(session.hosts) do
					if name ~= session.from_host then
						print("        also hosts "..tostring(name));
					end
				end
			end
		end
		
		print = _print;
	end
	
	for session in pairs(incoming_s2s) do
		if not session.to_host and ((not match_jid) or session.from_host and session.from_host:match(match_jid)) then
			count_in = count_in + 1;
			print("Other incoming s2s connections");
			print("    (unknown) <- "..(session.from_host or "(unknown)"));			
		end
	end
	
	return true, "Total: "..count_out.." outgoing, "..count_in.." incoming connections";
end

local function print_subject(print, subject)
	for _, entry in ipairs(subject) do
		print(
			("    %s: %q"):format(
				entry.name or entry.oid,
				entry.value:gsub("[\r\n%z%c]", " ")
			)
		);
	end
end

-- As much as it pains me to use the 0-based depths that OpenSSL does,
-- I think there's going to be more confusion among operators if we
-- break from that.
local function print_errors(print, errors)
	for depth, t in ipairs(errors) do
		print(
			("    %d: %s"):format(
				depth-1,
				table.concat(t, "\n|        ")
			)
		);
	end
end

function def_env.s2s:showcert(domain)
	local ser = require "util.serialization".serialize;
	local print = self.session.print;
	local domain_sessions = set.new(array.collect(keys(incoming_s2s)))
		/function(session) return session.from_host == domain and session or nil; end;
	for local_host in values(prosody.hosts) do
		local s2sout = local_host.s2sout;
		if s2sout and s2sout[domain] then
			domain_sessions:add(s2sout[domain]);
		end
	end
	local cert_set = {};
	for session in domain_sessions do
		local conn = session.conn;
		conn = conn and conn:socket();
		if not conn.getpeerchain then
			if conn.dohandshake then
				error("This version of LuaSec does not support certificate viewing");
			end
		else
			local certs = conn:getpeerchain();
			local cert = certs[1];
			if cert then
				local digest = cert:digest("sha1");
				if not cert_set[digest] then
					local chain_valid, chain_errors = conn:getpeerverification();
					cert_set[digest] = {
						{
						  from = session.from_host,
						  to = session.to_host,
						  direction = session.direction
						};
						chain_valid = chain_valid;
						chain_errors = chain_errors;
						certs = certs;
					};
				else
					table.insert(cert_set[digest], {
						from = session.from_host,
						to = session.to_host,
						direction = session.direction
					});
				end
			end
		end
	end
	local domain_certs = array.collect(values(cert_set));
	-- Phew. We now have a array of unique certificates presented by domain.
	local n_certs = #domain_certs;
	
	if n_certs == 0 then
		return "No certificates found for "..domain;
	end
	
	local function _capitalize_and_colon(byte)
		return string.upper(byte)..":";
	end
	local function pretty_fingerprint(hash)
		return hash:gsub("..", _capitalize_and_colon):sub(1, -2);
	end
	
	for cert_info in values(domain_certs) do
		local certs = cert_info.certs;
		local cert = certs[1];
		print("---")
		print("Fingerprint (SHA1): "..pretty_fingerprint(cert:digest("sha1")));
		print("");
		local n_streams = #cert_info;
		print("Currently used on "..n_streams.." stream"..(n_streams==1 and "" or "s")..":");
		for _, stream in ipairs(cert_info) do
			if stream.direction == "incoming" then
				print("    "..stream.to.." <- "..stream.from);
			else
				print("    "..stream.from.." -> "..stream.to);
			end
		end
		print("");
		local chain_valid, errors = cert_info.chain_valid, cert_info.chain_errors;
		local valid_identity = cert_verify_identity(domain, "xmpp-server", cert);
		if chain_valid then
			print("Trusted certificate: Yes");
		else
			print("Trusted certificate: No");
			print_errors(print, errors);
		end
		print("");
		print("Issuer: ");
		print_subject(print, cert:issuer());
		print("");
		print("Valid for "..domain..": "..(valid_identity and "Yes" or "No"));
		print("Subject:");
		print_subject(print, cert:subject());
	end
	print("---");
	return ("Showing "..n_certs.." certificate"
		..(n_certs==1 and "" or "s")
		.." presented by "..domain..".");
end

function def_env.s2s:close(from, to)
	local print, count = self.session.print, 0;
	
	if not (from and to) then
		return false, "Syntax: s2s:close('from', 'to') - Closes all s2s sessions from 'from' to 'to'";
	elseif from == to then
		return false, "Both from and to are the same... you can't do that :)";
	end
	
	if hosts[from] and not hosts[to] then
		-- Is an outgoing connection
		local session = hosts[from].s2sout[to];
		if not session then
			print("No outgoing connection from "..from.." to "..to)
		else
			(session.close or s2smanager.destroy_session)(session);
			count = count + 1;
			print("Closed outgoing session from "..from.." to "..to);
		end
	elseif hosts[to] and not hosts[from] then
		-- Is an incoming connection
		for session in pairs(incoming_s2s) do
			if session.to_host == to and session.from_host == from then
				(session.close or s2smanager.destroy_session)(session);
				count = count + 1;
			end
		end
		
		if count == 0 then
			print("No incoming connections from "..from.." to "..to);
		else
			print("Closed "..count.." incoming session"..((count == 1 and "") or "s").." from "..from.." to "..to);
		end
	elseif hosts[to] and hosts[from] then
		return false, "Both of the hostnames you specified are local, there are no s2s sessions to close";
	else
		return false, "Neither of the hostnames you specified are being used on this server";
	end
	
	return true, "Closed "..count.." s2s session"..((count == 1 and "") or "s");
end

function def_env.s2s:closeall(host)
        local count = 0;

        if not host or type(host) ~= "string" then return false, "wrong syntax: please use s2s:closeall('hostname.tld')"; end
        if hosts[host] then
                for session in pairs(incoming_s2s) do
                        if session.to_host == host then
                                (session.close or s2smanager.destroy_session)(session);
                                count = count + 1;
                        end
                end
                for _, session in pairs(hosts[host].s2sout) do
                        (session.close or s2smanager.destroy_session)(session);
                        count = count + 1;
                end
        else
                for session in pairs(incoming_s2s) do
			if session.from_host == host then
				(session.close or s2smanager.destroy_session)(session);
				count = count + 1;
			end
		end
		for _, h in pairs(hosts) do
			if h.s2sout[host] then
				(h.s2sout[host].close or s2smanager.destroy_session)(h.s2sout[host]);
				count = count + 1;
			end
		end
        end

	if count == 0 then return false, "No sessions to close.";
	else return true, "Closed "..count.." s2s session"..((count == 1 and "") or "s"); end
end

def_env.host = {}; def_env.hosts = def_env.host;

function def_env.host:activate(hostname, config)
	return hostmanager.activate(hostname, config);
end
function def_env.host:deactivate(hostname, reason)
	return hostmanager.deactivate(hostname, reason);
end

function def_env.host:list()
	local print = self.session.print;
	local i = 0;
	for host in values(array.collect(keys(prosody.hosts)):sort()) do
		i = i + 1;
		print(host);
	end
	return true, i.." hosts";
end

def_env.port = {};

function def_env.port:list()
	local print = self.session.print;
	local services = portmanager.get_active_services().data;
	local ordered_services, n_ports = {}, 0;
	for service, interfaces in pairs(services) do
		table.insert(ordered_services, service);
	end
	table.sort(ordered_services);
	for _, service in ipairs(ordered_services) do
		local ports_list = {};
		for interface, ports in pairs(services[service]) do
			for port in pairs(ports) do
				table.insert(ports_list, "["..interface.."]:"..port);
			end
		end
		n_ports = n_ports + #ports_list;
		print(service..": "..table.concat(ports_list, ", "));
	end
	return true, #ordered_services.." services listening on "..n_ports.." ports";
end

function def_env.port:close(close_port, close_interface)
	close_port = assert(tonumber(close_port), "Invalid port number");
	local n_closed = 0;
	local services = portmanager.get_active_services().data;
	for service, interfaces in pairs(services) do
		for interface, ports in pairs(interfaces) do
			if not close_interface or close_interface == interface then
				if ports[close_port] then
					self.session.print("Closing ["..interface.."]:"..close_port.."...");
					local ok, err = portmanager.close(interface, close_port)
					if not ok then
						self.session.print("Failed to close "..interface.." "..port..": "..err);
					else
						n_closed = n_closed + 1;
					end
				end
			end
		end
	end
	return true, "Closed "..n_closed.." ports";
end

def_env.muc = {};

local console_room_mt = {
	__index = function (self, k) return self.room[k]; end;
	__tostring = function (self)
		return "MUC room <"..self.room.jid..">";
	end;
};

function def_env.muc:room(room_jid)
	local room_name, host = jid_split(room_jid);
	if not hosts[host] then
		return nil, "No such host: "..host;
	elseif not hosts[host].modules.muc then
		return nil, "Host '"..host.."' is not a MUC service";
	end
	local room_obj = hosts[host].modules.muc.rooms[room_jid];
	if not room_obj then
		return nil, "No such room: "..room_jid;
	end
	return setmetatable({ room = room_obj }, console_room_mt);
end

local um = require"core.usermanager";

def_env.user = {};
function def_env.user:create(jid, password)
	local username, host = jid_split(jid);
	local ok, err = um.create_user(username, password, host);
	if ok then
		return true, "User created";
	else
		return nil, "Could not create user: "..err;
	end
end

function def_env.user:delete(jid)
	local username, host = jid_split(jid);
	local ok, err = um.delete_user(username, host);
	if ok then
		return true, "User deleted";
	else
		return nil, "Could not delete user: "..err;
	end
end

function def_env.user:passwd(jid, password)
	local username, host = jid_split(jid);
	local ok, err = um.set_password(username, password, host);
	if ok then
		return true, "User created";
	else
		return nil, "Could not change password for user: "..err;
	end
end

def_env.xmpp = {};

local st = require "util.stanza";
function def_env.xmpp:ping(localhost, remotehost)
	if hosts[localhost] then
		core_post_stanza(hosts[localhost],
			st.iq{ from=localhost, to=remotehost, type="get", id="ping" }
				:tag("ping", {xmlns="urn:xmpp:ping"}));
		return true, "Sent ping";
	else
		return nil, "No such host";
	end
end

-------------

function printbanner(session)
	local option = config.get("*", "core", "console_banner");
if option == nil or option == "full" or option == "graphic" then
session.print [[
                   ____                \   /     _       
                    |  _ \ _ __ ___  ___  _-_   __| |_   _ 
                    | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
                    |  __/| | | (_) \__ \ |_| | (_| | |_| |
                    |_|   |_|  \___/|___/\___/ \__,_|\__, |
                    A study in simplicity            |___/ 

]]
end
if option == nil or option == "short" or option == "full" then
session.print("Welcome to the Prosody administration console. For a list of commands, type: help");
session.print("You may find more help on using this console in our online documentation at ");
session.print("http://prosody.im/doc/console\n");
end
if option and option ~= "short" and option ~= "full" and option ~= "graphic" then
	if type(option) == "string" then
		session.print(option)
	elseif type(option) == "function" then
		module:log("warn", "Using functions as value for the console_banner option is no longer supported");
	end
end
end

module:add_item("net-provider", {
	name = "console";
	listener = console_listener;
	default_port = 5582;
	private = true;
});