26 local umask = module:get_option_string("umask", "027");

    11 -- TODO delete this whole concept

    27 pposix.umask(umask);

    28 

    29 -- Don't even think about it!

    30 if not prosody.start_time then -- server-starting

    31 	if pposix.getuid() == 0 and not module:get_option_boolean("run_as_root") then

    32 		module:log("error", "Danger, Will Robinson! Prosody doesn't need to be run as root, so don't do it!");

    33 		module:log("error", "For more information on running Prosody as root, see https://prosody.im/doc/root");

    34 		prosody.shutdown("Refusing to run as root", 1);

    35 	end

    36 end

    37 

    38 local pidfile;

    39 local pidfile_handle;

    40 

    41 local function remove_pidfile()

    42 	if pidfile_handle then

    43 		pidfile_handle:close();

    44 		os.remove(pidfile);

    45 		pidfile, pidfile_handle = nil, nil;

    46 	end

    47 end

    48 

    49 local function write_pidfile()

    50 	if pidfile_handle then

    51 		remove_pidfile();

    52 	end

    53 	pidfile = module:get_option_path("pidfile", nil, "data");

    54 	if pidfile then

    55 		local err;

    56 		local mode = stat(pidfile) and "r+" or "w+";

    57 		pidfile_handle, err = io.open(pidfile, mode);

    58 		if not pidfile_handle then

    59 			module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err);

    60 			prosody.shutdown("Couldn't write pidfile", 1);

    61 		else

    62 			if not lfs.lock(pidfile_handle, "w") then -- Exclusive lock

    63 				local other_pid = pidfile_handle:read("*a");

    64 				module:log("error", "Another Prosody instance seems to be running with PID %s, quitting", other_pid);

    65 				pidfile_handle = nil;

    66 				prosody.shutdown("Prosody already running", 1);

    67 			else

    68 				pidfile_handle:close();

    69 				pidfile_handle, err = io.open(pidfile, "w+");

    70 				if not pidfile_handle then

    71 					module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err);

    72 					prosody.shutdown("Couldn't write pidfile", 1);

    73 				else

    74 					if lfs.lock(pidfile_handle, "w") then

    75 						pidfile_handle:write(tostring(pposix.getpid()));

    76 						pidfile_handle:flush();

    77 					end

    78 				end

    79 			end

    80 		end

    81 	end

    82 end

    83 

    84 local daemonize = prosody.opts.daemonize;

    85 

    86 if daemonize == nil then

    87 	-- Fall back to config file if not specified on command-line

    88 	daemonize = module:get_option_boolean("daemonize", nil);

    89 	if daemonize ~= nil then

    90 		module:log("warn", "The 'daemonize' option has been deprecated, specify -D or -F on the command line instead.");

    91 		-- TODO: Write some docs and include a link in the warning.

    92 	end

    93 end

    94 

    95 local function remove_log_sinks()

    96 	local lm = require "prosody.core.loggingmanager";

    97 	lm.register_sink_type("console", nil);

    98 	lm.register_sink_type("stdout", nil);

    99 	lm.reload_logging();

   100 end

   101 

   102 if daemonize then

   103 	local function daemonize_server()

   104 		module:log("info", "Prosody is about to detach from the console, disabling further console output");

   105 		remove_log_sinks();

   106 		local ok, ret = pposix.daemonize();

   107 		if not ok then

   108 			module:log("error", "Failed to daemonize: %s", ret);

   109 		elseif ret and ret > 0 then

   110 			os.exit(0);

   111 		else

   112 			module:log("info", "Successfully daemonized to PID %d", pposix.getpid());

   113 			write_pidfile();

   114 		end

   115 	end

   116 	module:hook("server-started", daemonize_server)

   117 else

   118 	-- Not going to daemonize, so write the pid of this process

   119 	write_pidfile();

   120 end

   121 

   122 module:hook("server-stopped", remove_pidfile);