aboutsummaryrefslogtreecommitdiffstats
path: root/util/prosodyctl.lua
blob: f47c54dae1ac24d815ddf1b772ae17c9562e01ea (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
-- 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.
--


local config = require "core.configmanager";
local encodings = require "util.encodings";
local stringprep = encodings.stringprep;
local storagemanager = require "core.storagemanager";
local usermanager = require "core.usermanager";
local interpolation = require "util.interpolation";
local signal = require "util.signal";
local set = require "util.set";
local lfs = require "lfs";
local type = type;

local nodeprep, nameprep = stringprep.nodeprep, stringprep.nameprep;

local io, os = io, os;
local print = print;
local tonumber = tonumber;

local _G = _G;
local prosody = prosody;

local error_messages = setmetatable({
		["invalid-username"] = "The given username is invalid in a Jabber ID";
		["invalid-hostname"] = "The given hostname is invalid";
		["no-password"] = "No password was supplied";
		["no-such-user"] = "The given user does not exist on the server";
		["no-such-host"] = "The given hostname does not exist in the config";
		["unable-to-save-data"] = "Unable to store, perhaps you don't have permission?";
		["no-pidfile"] = "There is no 'pidfile' option in the configuration file, see https://prosody.im/doc/prosodyctl#pidfile for help";
		["invalid-pidfile"] = "The 'pidfile' option in the configuration file is not a string, see https://prosody.im/doc/prosodyctl#pidfile for help";
		["no-posix"] = "The mod_posix module is not enabled in the Prosody config file, see https://prosody.im/doc/prosodyctl for more info";
		["no-such-method"] = "This module has no commands";
		["not-running"] = "Prosody is not running";
		}, { __index = function (_,k) return "Error: "..(tostring(k):gsub("%-", " "):gsub("^.", string.upper)); end });

-- UI helpers
local show_message = require "util.human.io".printf;

local function show_usage(usage, desc)
	print("Usage: ".._G.arg[0].." "..usage);
	if desc then
		print(" "..desc);
	end
end

local function show_module_configuration_help(mod_name)
	print("Done.")
	print("If you installed a prosody plugin, don't forget to add its name under the 'modules_enabled' section inside your configuration file.")
	print("Depending on the module, there might be further configuration steps required.")
	print("")
	print("More info about: ")
	print("	modules_enabled: https://prosody.im/doc/modules_enabled")
	print("	"..mod_name..": https://modules.prosody.im/"..mod_name..".html")
end

-- Server control
local function adduser(params)
	local user, host, password = nodeprep(params.user, true), nameprep(params.host), params.password;
	if not user then
		return false, "invalid-username";
	elseif not host then
		return false, "invalid-hostname";
	end

	local host_session = prosody.hosts[host];
	if not host_session then
		return false, "no-such-host";
	end

	storagemanager.initialize_host(host);
	local provider = host_session.users;
	if not(provider) or provider.name == "null" then
		usermanager.initialize_host(host);
	end

	local ok, errmsg = usermanager.create_user(user, password, host);
	if not ok then
		return false, errmsg or "creating-user-failed";
	end
	return true;
end

local function user_exists(params)
	local user, host = nodeprep(params.user), nameprep(params.host);

	storagemanager.initialize_host(host);
	local provider = prosody.hosts[host].users;
	if not(provider) or provider.name == "null" then
		usermanager.initialize_host(host);
	end

	return usermanager.user_exists(user, host);
end

local function passwd(params)
	if not user_exists(params) then
		return false, "no-such-user";
	end

	return adduser(params);
end

local function deluser(params)
	if not user_exists(params) then
		return false, "no-such-user";
	end
	local user, host = nodeprep(params.user), nameprep(params.host);

	return usermanager.delete_user(user, host);
end

local function getpid()
	local pidfile = config.get("*", "pidfile");
	if not pidfile then
		return false, "no-pidfile";
	end

	if type(pidfile) ~= "string" then
		return false, "invalid-pidfile";
	end

	pidfile = config.resolve_relative_path(prosody.paths.data, pidfile);

	local modules_disabled = set.new(config.get("*", "modules_disabled"));
	if prosody.platform ~= "posix" or modules_disabled:contains("posix") then
		return false, "no-posix";
	end

	local file, err = io.open(pidfile, "r+");
	if not file then
		return false, "pidfile-read-failed", err;
	end

	local locked, err = lfs.lock(file, "w"); -- luacheck: ignore 211/err
	if locked then
		file:close();
		return false, "pidfile-not-locked";
	end

	local pid = tonumber(file:read("*a"));
	file:close();

	if not pid then
		return false, "invalid-pid";
	end

	return true, pid;
end

local function isrunning()
	local ok, pid, err = getpid(); -- luacheck: ignore 211/err
	if not ok then
		if pid == "pidfile-read-failed" or pid == "pidfile-not-locked" then
			-- Report as not running, since we can't open the pidfile
			-- (it probably doesn't exist)
			return true, false;
		end
		return ok, pid;
	end
	return true, signal.kill(pid, 0) == 0;
end

local function start(source_dir, lua)
	lua = lua and lua .. " " or "";
	local ok, ret = isrunning();
	if not ok then
		return ok, ret;
	end
	if ret then
		return false, "already-running";
	end
	if not source_dir then
		os.execute(lua .. "./prosody -D");
	else
		os.execute(lua .. source_dir.."/../../bin/prosody -D");
	end
	return true;
end

local function stop()
	local ok, ret = isrunning();
	if not ok then
		return ok, ret;
	end
	if not ret then
		return false, "not-running";
	end

	local ok, pid = getpid()
	if not ok then return false, pid; end

	signal.kill(pid, signal.SIGTERM);
	return true;
end

local function reload()
	local ok, ret = isrunning();
	if not ok then
		return ok, ret;
	end
	if not ret then
		return false, "not-running";
	end

	local ok, pid = getpid()
	if not ok then return false, pid; end

	signal.kill(pid, signal.SIGHUP);
	return true;
end

local render_cli = interpolation.new("%b{}", function (s) return "'"..s:gsub("'","'\\''").."'" end)

local function call_luarocks(operation, mod, server)
	local dir = prosody.paths.installer;
	local ok, _, code = os.execute(render_cli("luarocks {op} --tree={dir} {server&--server={server}} {mod?}", {
				dir = dir; op = operation; mod = mod; server = server;
		}));
	if type(ok) == "number" then ok, code = ok == 0, ok; end
	return code;
end

return {
	show_message = show_message;
	show_warning = show_message;
	show_usage = show_usage;
	show_module_configuration_help = show_module_configuration_help;
	adduser = adduser;
	user_exists = user_exists;
	passwd = passwd;
	deluser = deluser;
	getpid = getpid;
	isrunning = isrunning;
	start = start;
	stop = stop;
	reload = reload;
	call_luarocks = call_luarocks;
	error_messages = error_messages;
};