--
-local want_pposix_version = "0.3.1";
+local want_pposix_version = "0.3.3";
local pposix = assert(require "util.pposix");
if pposix._VERSION ~= want_pposix_version then module:log("warn", "Unknown version (%s) of binary pposix module, expected %s", tostring(pposix._VERSION), want_pposix_version); end
module:log("warn", "Couldn't load signal library, won't respond to SIGTERM");
end
-local config_get = require "core.configmanager".get;
local logger_set = require "util.logger".setwriter;
+local lfs = require "lfs";
+local stat = lfs.attributes;
+
local prosody = _G.prosody;
module.host = "*"; -- we're a global module
+local umask = module:get_option("umask") or "027";
+pposix.umask(umask);
+
-- Allow switching away from root, some people like strange ports.
module:add_event_hook("server-started", function ()
- local uid = config_get("*", "core", "setuid");
- local gid = config_get("*", "core", "setgid");
+ local uid = module:get_option("setuid");
+ local gid = module:get_option("setgid");
if gid then
- pposix.setgid(gid);
- module:log("debug", "Change group to "..gid..".");
+ local success, msg = pposix.setgid(gid);
+ if success then
+ module:log("debug", "Changed group to "..gid.." successfully.");
+ else
+ module:log("error", "Failed to change group to "..gid..". Error: "..msg);
+ prosody.shutdown("Failed to change group to "..gid);
+ end
end
if uid then
- pposix.setuid(uid);
- module:log("debug", "Change user to "..uid..".");
+ local success, msg = pposix.setuid(uid);
+ if success then
+ module:log("debug", "Changed user to "..uid.." successfully.");
+ else
+ module:log("error", "Failed to change user to "..uid..". Error: "..msg);
+ prosody.shutdown("Failed to change user to "..uid);
+ end
end
end);
-- Don't even think about it!
module:add_event_hook("server-starting", function ()
- local suid = config_get("*", "core", "setuid");
+ local suid = module:get_option("setuid");
if not suid or suid == 0 or suid == "root" then
- if pposix.getuid() == 0 and not config_get("*", "core", "run_as_root") then
+ if pposix.getuid() == 0 and not module:get_option("run_as_root") then
module:log("error", "Danger, Will Robinson! Prosody doesn't need to be run as root, so don't do it!");
module:log("error", "For more information on running Prosody as root, see http://prosody.im/doc/root");
prosody.shutdown("Refusing to run as root");
end
end);
-local pidfile_written;
+local pidfile;
+local pidfile_handle;
local function remove_pidfile()
- if pidfile_written then
- os.remove(pidfile_written);
- pidfile_written = nil;
+ if pidfile_handle then
+ pidfile_handle:close();
+ os.remove(pidfile);
+ pidfile, pidfile_handle = nil, nil;
end
end
local function write_pidfile()
- if pidfile_written then
+ if pidfile_handle then
remove_pidfile();
end
- local pidfile = config_get("*", "core", "pidfile");
+ pidfile = module:get_option("pidfile");
if pidfile then
- local pf, err = io.open(pidfile, "w+");
- if not pf then
- module:log("error", "Couldn't write pidfile; %s", err);
+ local mode = stat(pidfile) and "r+" or "w+";
+ pidfile_handle, err = io.open(pidfile, mode);
+ if not pidfile_handle then
+ module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err);
+ prosody.shutdown("Couldn't write pidfile");
else
- pf:write(tostring(pposix.getpid()));
- pf:close();
- pidfile_written = pidfile;
+ if not lfs.lock(pidfile_handle, "w") then -- Exclusive lock
+ local other_pid = pidfile_handle:read("*a");
+ module:log("error", "Another Prosody instance seems to be running with PID %s, quitting", other_pid);
+ pidfile_handle = nil;
+ prosody.shutdown("Prosody already running");
+ else
+ pidfile_handle:write(tostring(pposix.getpid()));
+ pidfile_handle:flush();
+ end
end
end
end
end
require "core.loggingmanager".register_sink_type("syslog", syslog_sink_maker);
-if not config_get("*", "core", "no_daemonize") then
+local daemonize = module:get_option("daemonize");
+if daemonize == nil then
+ local no_daemonize = module:get_option("no_daemonize"); --COMPAT w/ 0.5
+ daemonize = not no_daemonize;
+ if no_daemonize ~= nil then
+ module:log("warn", "The 'no_daemonize' option is now replaced by 'daemonize'");
+ module:log("warn", "Update your config from 'no_daemonize = %s' to 'daemonize = %s'", tostring(no_daemonize), tostring(daemonize));
+ end
+end
+
+if daemonize then
local function daemonize_server()
local ok, ret = pposix.daemonize();
if not ok then
prosody.reload_config();
prosody.reopen_logfiles();
end);
+
+ signal.signal("SIGINT", function ()
+ module:log("info", "Received SIGINT");
+ prosody.unlock_globals();
+ prosody.shutdown("Received SIGINT");
+ prosody.lock_globals();
+ end);
end