aboutsummaryrefslogtreecommitdiffstats
path: root/util/prosodyctl/shell.lua
blob: 6a7313cc5ce2c13c9665262f8527c73b63ee9626 (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
local config = require "prosody.core.configmanager";
local server = require "prosody.net.server";
local st = require "prosody.util.stanza";
local path = require "prosody.util.paths";
local parse_args = require "prosody.util.argparse".parse;
local unpack = table.unpack or _G.unpack;
local tc = require "prosody.util.termcolours";
local isatty = require "prosody.util.pposix".isatty;
local term_width = require"prosody.util.human.io".term_width;

local have_readline, readline = pcall(require, "readline");

local adminstream = require "prosody.util.adminstream";

if have_readline then
	readline.set_readline_name("prosody");
	readline.set_options({
			histfile = path.join(prosody.paths.data, ".shell_history");
			ignoredups = true;
		});
end

local function read_line(prompt_string)
	if have_readline then
		return readline.readline(prompt_string);
	else
		io.write(prompt_string);
		return io.read("*line");
	end
end

local function send_line(client, line)
	client.send(st.stanza("repl-input", { width = tostring(term_width()) }):text(line));
end

local function repl(client)
	local line = read_line(client.prompt_string or "prosody> ");
	if not line or line == "quit" or line == "exit" or line == "bye" then
		if not line then
			print("");
		end
		if have_readline then
			readline.save_history();
		end
		os.exit(0, true);
	end
	send_line(client, line);
end

local function printbanner()
	local banner = config.get("*", "console_banner");
	if banner then return print(banner); end
	print([[
                     ____                \   /     _
                    |  _ \ _ __ ___  ___  _-_   __| |_   _
                    | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
                    |  __/| | | (_) \__ \ |_| | (_| | |_| |
                    |_|   |_|  \___/|___/\___/ \__,_|\__, |
                    A study in simplicity            |___/

]]);
	print("Welcome to the Prosody administration console. For a list of commands, type: help");
	print("You may find more help on using this console in our online documentation at ");
	print("https://prosody.im/doc/console\n");
end

local function start(arg) --luacheck: ignore 212/arg
	local client = adminstream.client();
	local opts, err, where = parse_args(arg);
	local ttyout = isatty(io.stdout);

	if not opts then
		if err == "param-not-found" then
			print("Unknown command-line option: "..tostring(where));
		elseif err == "missing-value" then
			print("Expected a value to follow command-line option: "..where);
		end
		os.exit(1);
	end

	if arg[1] then
		if arg[2] then
			-- prosodyctl shell module reload foo bar.com --> module:reload("foo", "bar.com")
			arg[1] = string.format("%s:%s("..string.rep("%q", #arg-2,", ")..")", unpack(arg));
		end

		client.events.add_handler("connected", function()
			send_line(client, arg[1]);
			return true;
		end, 1);

		local errors = 0; -- TODO This is weird, but works for now.
		client.events.add_handler("received", function(stanza)
			if stanza.name == "repl-output" or stanza.name == "repl-result" then
				local dest = io.stdout;
				if stanza.attr.type == "error" then
					errors = errors + 1;
					dest = io.stderr;
				end
				if stanza.attr.eol == "0" then
					dest:write(stanza:get_text());
				else
					dest:write(stanza:get_text(), "\n");
				end
			end
			if stanza.name == "repl-result" then
				os.exit(errors);
			end
			return true;
		end, 1);
	end

	client.events.add_handler("connected", function ()
		if not opts.quiet then
			printbanner();
		end
		repl(client);
	end);

	client.events.add_handler("disconnected", function ()
		print("--- session closed ---");
		os.exit(0, true);
	end);

	client.events.add_handler("received", function (stanza)
		if stanza.name == "repl-output" or stanza.name == "repl-result" then
			local result_prefix = stanza.attr.type == "error" and "!" or "|";
			local out = result_prefix.." "..stanza:get_text();
			if ttyout and stanza.attr.type == "error" then
				out = tc.getstring(tc.getstyle("red"), out);
			end
			print(out);
		end
		if stanza.name == "repl-result" then
			repl(client);
		end
	end);

	client.prompt_string = config.get("*", "admin_shell_prompt");

	local socket_path = path.resolve_relative_path(prosody.paths.data, opts.socket or config.get("*", "admin_socket") or "prosody.sock");
	local conn = adminstream.connection(socket_path, client.listeners);
	local ok, err = conn:connect();
	if not ok then
		if err == "no unix socket support" then
			print("** LuaSocket unix socket support not available or incompatible, ensure your");
			print("** version is up to date.");
		else
			print("** Unable to connect to server - is it running? Is mod_admin_shell enabled?");
			print("** Connection error: "..err);
		end
		os.exit(1);
	end
	server.loop();
end

return {
	shell = start;
};