aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/mod_console.lua
blob: feff195e2fc5b8984009f77c8b5f6ea88351bda0 (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
-- Prosody IM v0.4
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
-- 
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

module.host = "*";

local hosts = _G.hosts;
local connlisteners_register = require "net.connlisteners".register;

local console_listener = { default_port = 5582; default_mode = "*l"; };

local commands = {};
local def_env = {};
local default_env_mt = { __index = def_env };

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 (t) w("| "..tostring(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.listener(conn, data)
	local session = sessions[conn];
	
	if not session then
		-- Handle new connection
		session = console:new_session(conn);
		sessions[conn] = session;
		printbanner(session);
	end
	if data then
		-- Handle data
		(function(session, data)
			if data:match("[!.]$") then
				local command = data:lower();
				command = data:match("^%w+") or data:match("%p");
				if commands[command] then
					commands[command](session, data);
					return;
				end
			end
			
			session.env._ = data;
			
			local chunk, err = loadstring("return "..data);
			if not chunk then
				chunk, err = loadstring(data);
				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);
					return;
				end
			end
			
			setfenv(chunk, session.env);
			local ranok, taskok, message = pcall(chunk);
			
			if not ranok then
				session.print("Fatal error while running command, it did not complete");
				session.print("Error: "..taskok);
				return;
			end
			
			if not message then
				session.print("Result: "..tostring(taskok));
				return;
			elseif (not taskok) and message then
				session.print("Command completed with a problem");
				session.print("Message: "..tostring(message));
				return;
			end
			
			session.print("OK: "..tostring(message));
		end)(session, data);
	end
	session.send(string.char(0));
end

function console_listener.disconnect(conn, err)
	
end

connlisteners_register('console', console_listener);

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

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

commands["!"] = function (session, data)
	if data:match("^!!") then
		session.print("!> "..session.env._);
		return console_listener.listener(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.listener(session.conn, res);
	end
	session.print("Sorry, not sure what you want");
end

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

def_env.server = {};
function def_env.server:reload()
	dofile "prosody"
	return true, "Server reloaded";
end

def_env.module = {};
function def_env.module:load(name, host, config)
	local mm = require "modulemanager";
	local ok, err = mm.load(host or self.env.host, name, config);
	if not ok then
		return false, err or "Unknown error loading module";
	end
	return true, "Module loaded";
end

function def_env.module:unload(name, host)
	local mm = require "modulemanager";
	local ok, err = mm.unload(host or self.env.host, name);
	if not ok then
		return false, err or "Unknown error unloading module";
	end
	return true, "Module unloaded";
end

function def_env.module:reload(name, host)
	local mm = require "modulemanager";
	local ok, err = mm.reload(host or self.env.host, name);
	if not ok then
		return false, err or "Unknown error reloading module";
	end
	return true, "Module reloaded";
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

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.s2s = {};
function def_env.s2s:show()
	local _print = self.session.print;
	local print = self.session.print;
	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
			print("    "..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
		
		for session in pairs(incoming_s2s) do
			if session.to_host == host then
				print("    "..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 then
			print("Other incoming s2s connections");
			print("    (unknown) <- "..(session.from_host or "(unknown)"));			
		end
	end
end

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

function printbanner(session)
session.print [[
                   ____                \   /     _       
                    |  _ \ _ __ ___  ___  _-_   __| |_   _ 
                    | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
                    |  __/| | | (_) \__ \ |_| | (_| | |_| |
                    |_|   |_|  \___/|___/\___/ \__,_|\__, |
                    A study in simplicity            |___/ 

]]
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