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-- 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 signal = require "util.signal";
local set = require "util.set";
local lfs = require "lfs";
local pcall = pcall;
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;
-- UI helpers
local function show_message(msg, ...)
print(msg:format(...));
end
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
local function getchar(n)
local stty_ret = os.execute("stty raw -echo 2>/dev/null");
local ok, char;
if stty_ret == true or stty_ret == 0 then
ok, char = pcall(io.read, n or 1);
os.execute("stty sane");
else
ok, char = pcall(io.read, "*l");
if ok then
char = char:sub(1, n or 1);
end
end
if ok then
return char;
end
end
local function getline()
local ok, line = pcall(io.read, "*l");
if ok then
return line;
end
end
local function getpass()
local stty_ret, _, status_code = os.execute("stty -echo 2>/dev/null");
if status_code then -- COMPAT w/ Lua 5.1
stty_ret = status_code;
end
if stty_ret ~= 0 then
io.write("\027[08m"); -- ANSI 'hidden' text attribute
end
local ok, pass = pcall(io.read, "*l");
if stty_ret == 0 then
os.execute("stty sane");
else
io.write("\027[00m");
end
io.write("\n");
if ok then
return pass;
end
end
local function show_yesno(prompt)
io.write(prompt, " ");
local choice = getchar():lower();
io.write("\n");
if not choice:match("%a") then
choice = prompt:match("%[.-(%U).-%]$");
if not choice then return nil; end
end
return (choice == "y");
end
local function read_password()
local password;
while true do
io.write("Enter new password: ");
password = getpass();
if not password then
show_message("No password - cancelled");
return;
end
io.write("Retype new password: ");
if getpass() ~= password then
if not show_yesno [=[Passwords did not match, try again? [Y/n]]=] then
return;
end
else
break;
end
end
return password;
end
local function show_prompt(prompt)
io.write(prompt, " ");
local line = getline();
line = line and line:gsub("\n$","");
return (line and #line > 0) and line or nil;
end
-- Server control
local function adduser(params)
local user, host, password = nodeprep(params.user), 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");
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();
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");
else
os.execute(lua .. source_dir.."/../../bin/prosody");
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 function admin_operation(operation, arg)
if arg[1] == "--help" then
print(" admin-"..operation)
print(" "..operation.."plugins from a server (repository)")
return 1;
end
local modules, tree, server, refresh = "", "", "", ""
for i, _ in ipairs(arg) do
if arg[i]:sub(1, #"--tree=") == "--tree=" then
tree = arg[i].." "
elseif arg[i]:sub(1, #"--server=") == "--server=" then
server = arg[i].." "
elseif arg[i]:sub(1, #"--no-refresh") == "--no-refresh" then
refresh = arg[i].." "
else
modules=modules..arg[i].." "
end
end
os.execute("luarocks-admin "..tree..operation..server..refresh..modules)
end
return {
show_message = show_message;
show_warning = show_message;
show_usage = show_usage;
show_module_configuration_help = show_module_configuration_help;
getchar = getchar;
getline = getline;
getpass = getpass;
show_yesno = show_yesno;
read_password = read_password;
show_prompt = show_prompt;
adduser = adduser;
user_exists = user_exists;
passwd = passwd;
deluser = deluser;
getpid = getpid;
isrunning = isrunning;
start = start;
stop = stop;
reload = reload;
admin_operation = admin_operation;
};
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