author | Matthew Wild <mwild1@gmail.com> |
Thu, 04 Nov 2010 08:41:24 +0000 | |
changeset 3555 | 6938b6153890 |
parent 3540 | bc139431830b |
child 4623 | 403b56b78018 |
child 4794 | 25ce7720555f |
permissions | -rw-r--r-- |
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-- Prosody IM |
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-- Copyright (C) 2008-2010 Matthew Wild |
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-- Copyright (C) 2008-2010 Waqas Hussain |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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local want_pposix_version = "0.3.5"; |
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local pposix = assert(require "util.pposix"); |
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735 | 13 |
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 |
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local signal = select(2, pcall(require, "util.signal")); |
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if type(signal) == "string" then |
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module:log("warn", "Couldn't load signal library, won't respond to SIGTERM"); |
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end |
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local lfs = require "lfs"; |
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local stat = lfs.attributes; |
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local prosody = _G.prosody; |
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module.host = "*"; -- we're a global module |
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||
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local umask = module:get_option("umask") or "027"; |
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pposix.umask(umask); |
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-- Allow switching away from root, some people like strange ports. |
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module:hook("server-started", function () |
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local uid = module:get_option("setuid"); |
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local gid = module:get_option("setgid"); |
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if gid then |
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local success, msg = pposix.setgid(gid); |
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if success then |
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module:log("debug", "Changed group to "..gid.." successfully."); |
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else |
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module:log("error", "Failed to change group to "..gid..". Error: "..msg); |
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prosody.shutdown("Failed to change group to "..gid); |
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end |
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end |
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if uid then |
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local success, msg = pposix.setuid(uid); |
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if success then |
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module:log("debug", "Changed user to "..uid.." successfully."); |
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else |
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module:log("error", "Failed to change user to "..uid..". Error: "..msg); |
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prosody.shutdown("Failed to change user to "..uid); |
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end |
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end |
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end); |
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|
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-- Don't even think about it! |
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if not prosody.start_time then -- server-starting |
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local suid = module:get_option("setuid"); |
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if not suid or suid == 0 or suid == "root" then |
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if pposix.getuid() == 0 and not module:get_option("run_as_root") then |
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module:log("error", "Danger, Will Robinson! Prosody doesn't need to be run as root, so don't do it!"); |
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module:log("error", "For more information on running Prosody as root, see http://prosody.im/doc/root"); |
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prosody.shutdown("Refusing to run as root"); |
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end |
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end |
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end |
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|
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local pidfile; |
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local pidfile_handle; |
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local function remove_pidfile() |
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if pidfile_handle then |
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pidfile_handle:close(); |
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os.remove(pidfile); |
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pidfile, pidfile_handle = nil, nil; |
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end |
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end |
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|
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local function write_pidfile() |
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if pidfile_handle then |
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remove_pidfile(); |
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end |
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pidfile = module:get_option("pidfile"); |
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if pidfile then |
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local err; |
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local mode = stat(pidfile) and "r+" or "w+"; |
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pidfile_handle, err = io.open(pidfile, mode); |
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if not pidfile_handle then |
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module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err); |
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prosody.shutdown("Couldn't write pidfile"); |
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else |
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if not lfs.lock(pidfile_handle, "w") then -- Exclusive lock |
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local other_pid = pidfile_handle:read("*a"); |
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module:log("error", "Another Prosody instance seems to be running with PID %s, quitting", other_pid); |
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pidfile_handle = nil; |
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prosody.shutdown("Prosody already running"); |
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else |
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pidfile_handle:close(); |
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pidfile_handle, err = io.open(pidfile, "w+"); |
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if not pidfile_handle then |
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module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err); |
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prosody.shutdown("Couldn't write pidfile"); |
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else |
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if lfs.lock(pidfile_handle, "w") then |
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103 |
pidfile_handle:write(tostring(pposix.getpid())); |
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104 |
pidfile_handle:flush(); |
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105 |
end |
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106 |
end |
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107 |
end |
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108 |
end |
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109 |
end |
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110 |
end |
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111 |
|
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112 |
local syslog_opened; |
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113 |
function syslog_sink_maker(config) |
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114 |
if not syslog_opened then |
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115 |
pposix.syslog_open("prosody"); |
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116 |
syslog_opened = true; |
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117 |
end |
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118 |
local syslog, format = pposix.syslog_log, string.format; |
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119 |
return function (name, level, message, ...) |
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120 |
if ... then |
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121 |
syslog(level, format(message, ...)); |
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122 |
else |
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123 |
syslog(level, message); |
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124 |
end |
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125 |
end; |
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126 |
end |
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127 |
require "core.loggingmanager".register_sink_type("syslog", syslog_sink_maker); |
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128 |
|
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129 |
local daemonize = module:get_option("daemonize"); |
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130 |
if daemonize == nil then |
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131 |
local no_daemonize = module:get_option("no_daemonize"); --COMPAT w/ 0.5 |
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132 |
daemonize = not no_daemonize; |
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133 |
if no_daemonize ~= nil then |
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134 |
module:log("warn", "The 'no_daemonize' option is now replaced by 'daemonize'"); |
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135 |
module:log("warn", "Update your config from 'no_daemonize = %s' to 'daemonize = %s'", tostring(no_daemonize), tostring(daemonize)); |
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136 |
end |
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137 |
end |
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changeset
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138 |
|
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parents:
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changeset
|
139 |
if daemonize then |
587 | 140 |
local function daemonize_server() |
141 |
local ok, ret = pposix.daemonize(); |
|
142 |
if not ok then |
|
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143 |
module:log("error", "Failed to daemonize: %s", ret); |
587 | 144 |
elseif ret and ret > 0 then |
145 |
os.exit(0); |
|
146 |
else |
|
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changeset
|
147 |
module:log("info", "Successfully daemonized to PID %d", pposix.getpid()); |
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|
148 |
write_pidfile(); |
587 | 149 |
end |
150 |
end |
|
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diff
changeset
|
151 |
if not prosody.start_time then -- server-starting |
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|
152 |
daemonize_server(); |
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|
153 |
end |
991
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|
154 |
else |
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diff
changeset
|
155 |
-- Not going to daemonize, so write the pid of this process |
991
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parents:
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diff
changeset
|
156 |
write_pidfile(); |
587 | 157 |
end |
991
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diff
changeset
|
158 |
|
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changeset
|
159 |
module:hook("server-stopped", remove_pidfile); |
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diff
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|
160 |
|
1118
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|
161 |
-- Set signal handlers |
991
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diff
changeset
|
162 |
if signal.signal then |
cd0d75de8345
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parents:
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|
163 |
signal.signal("SIGTERM", function () |
1118
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|
164 |
module:log("warn", "Received SIGTERM"); |
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diff
changeset
|
165 |
prosody.unlock_globals(); |
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|
166 |
prosody.shutdown("Received SIGTERM"); |
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|
167 |
prosody.lock_globals(); |
991
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|
168 |
end); |
1118
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|
169 |
|
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|
170 |
signal.signal("SIGHUP", function () |
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|
171 |
module:log("info", "Received SIGHUP"); |
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|
172 |
prosody.reload_config(); |
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|
173 |
prosody.reopen_logfiles(); |
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changeset
|
174 |
end); |
2332 | 175 |
|
176 |
signal.signal("SIGINT", function () |
|
177 |
module:log("info", "Received SIGINT"); |
|
178 |
prosody.unlock_globals(); |
|
179 |
prosody.shutdown("Received SIGINT"); |
|
180 |
prosody.lock_globals(); |
|
181 |
end); |
|
991
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parents:
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diff
changeset
|
182 |
end |