author | Kim Alvefur <zash@zash.se> |
Mon, 11 Sep 2017 19:32:12 +0200 | |
changeset 8231 | cda9db4b881d |
parent 8229 | 3463d82276de |
child 8238 | 7d9a2c200736 |
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 = "0.4.0"; |
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local pposix = assert(require "util.pposix"); |
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if pposix._VERSION ~= want_pposix_version then |
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module:log("warn", "Unknown version (%s) of binary pposix module, expected %s." |
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.. "Perhaps you need to recompile?", tostring(pposix._VERSION), want_pposix_version); |
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16 |
end |
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local have_signal, signal = pcall(require, "util.signal"); |
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if not have_signal then |
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module:log("warn", "Couldn't load signal library, won't respond to SIGTERM"); |
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21 |
end |
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loggingmanager, mod_posix: Import util.format correctly (fixes #985)
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local format = require "util.format".format; |
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local lfs = require "lfs"; |
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local stat = lfs.attributes; |
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26 |
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local prosody = _G.prosody; |
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module:set_global(); -- we're a global module |
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local umask = module:get_option_string("umask", "027"); |
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pposix.umask(umask); |
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33 |
|
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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 %s successfully.", gid); |
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else |
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module:log("error", "Failed to change group to %s. Error: %s", gid, msg); |
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prosody.shutdown("Failed to change group to %s", gid); |
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end |
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end |
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if uid then |
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48 |
local success, msg = pposix.setuid(uid); |
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if success then |
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module:log("debug", "Changed user to %s successfully.", uid); |
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51 |
else |
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module:log("error", "Failed to change user to %s. Error: %s", uid, msg); |
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prosody.shutdown("Failed to change user to %s", uid); |
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end |
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end |
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end); |
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57 |
|
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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_boolean("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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66 |
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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|
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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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81 |
local function write_pidfile() |
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if pidfile_handle then |
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83 |
remove_pidfile(); |
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84 |
end |
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pidfile = module:get_option_path("pidfile", nil, "data"); |
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if pidfile then |
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87 |
local err; |
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88 |
local mode = stat(pidfile) and "r+" or "w+"; |
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89 |
pidfile_handle, err = io.open(pidfile, mode); |
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if not pidfile_handle then |
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91 |
module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err); |
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92 |
prosody.shutdown("Couldn't write pidfile"); |
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93 |
else |
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94 |
if not lfs.lock(pidfile_handle, "w") then -- Exclusive lock |
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95 |
local other_pid = pidfile_handle:read("*a"); |
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96 |
module:log("error", "Another Prosody instance seems to be running with PID %s, quitting", other_pid); |
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97 |
pidfile_handle = nil; |
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98 |
prosody.shutdown("Prosody already running"); |
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99 |
else |
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100 |
pidfile_handle:close(); |
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101 |
pidfile_handle, err = io.open(pidfile, "w+"); |
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102 |
if not pidfile_handle then |
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103 |
module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err); |
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104 |
prosody.shutdown("Couldn't write pidfile"); |
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105 |
else |
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106 |
if lfs.lock(pidfile_handle, "w") then |
a8a3e662fea7
mod_posix: Some (perhaps temporary) changes to re-lock the pidfile after truncating, to avoid breaking prosodyctl
Matthew Wild <mwild1@gmail.com>
parents:
3340
diff
changeset
|
107 |
pidfile_handle:write(tostring(pposix.getpid())); |
a8a3e662fea7
mod_posix: Some (perhaps temporary) changes to re-lock the pidfile after truncating, to avoid breaking prosodyctl
Matthew Wild <mwild1@gmail.com>
parents:
3340
diff
changeset
|
108 |
pidfile_handle:flush(); |
a8a3e662fea7
mod_posix: Some (perhaps temporary) changes to re-lock the pidfile after truncating, to avoid breaking prosodyctl
Matthew Wild <mwild1@gmail.com>
parents:
3340
diff
changeset
|
109 |
end |
3340
0769cc5f34b6
mod_posix: Truncate the pidfile before writing to ensure that we never overwrite with a PID shorter than the previous, and end with an invalid PID in the file.
Brian Cully <bjc@junctionnetworks.com>
parents:
3029
diff
changeset
|
110 |
end |
2793
08892e3f24bd
mod_posix: Lock pidfile when in use, shut down if we can't write or lock the pidfile
Matthew Wild <mwild1@gmail.com>
parents:
2074
diff
changeset
|
111 |
end |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
112 |
end |
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
113 |
end |
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
114 |
end |
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
115 |
|
3540
bc139431830b
Monster whitespace commit (beware the whitespace monster).
Waqas Hussain <waqas20@gmail.com>
parents:
3537
diff
changeset
|
116 |
local syslog_opened; |
8170
39188851811c
mod_posix: Ignore currently unused argument [luacheck]
Kim Alvefur <zash@zash.se>
parents:
8169
diff
changeset
|
117 |
function syslog_sink_maker(config) -- luacheck: ignore 212/config |
1033
4a9f0d482028
mod_posix: Integrate with loggingmanager, register syslog sink, remove redundant logging code
Matthew Wild <mwild1@gmail.com>
parents:
1032
diff
changeset
|
118 |
if not syslog_opened then |
4794
25ce7720555f
mod_posix: Support syslog_facility config option
Matthew Wild <mwild1@gmail.com>
parents:
3555
diff
changeset
|
119 |
pposix.syslog_open("prosody", module:get_option_string("syslog_facility")); |
1033
4a9f0d482028
mod_posix: Integrate with loggingmanager, register syslog sink, remove redundant logging code
Matthew Wild <mwild1@gmail.com>
parents:
1032
diff
changeset
|
120 |
syslog_opened = true; |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
121 |
end |
8229
3463d82276de
loggingmanager, mod_posix: Replace the old inconsistent log formatting with the new util.format
Waqas Hussain <waqas20@gmail.com>
parents:
8170
diff
changeset
|
122 |
local syslog = pposix.syslog_log; |
1033
4a9f0d482028
mod_posix: Integrate with loggingmanager, register syslog sink, remove redundant logging code
Matthew Wild <mwild1@gmail.com>
parents:
1032
diff
changeset
|
123 |
return function (name, level, message, ...) |
8229
3463d82276de
loggingmanager, mod_posix: Replace the old inconsistent log formatting with the new util.format
Waqas Hussain <waqas20@gmail.com>
parents:
8170
diff
changeset
|
124 |
syslog(level, name, format(message, ...)); |
3540
bc139431830b
Monster whitespace commit (beware the whitespace monster).
Waqas Hussain <waqas20@gmail.com>
parents:
3537
diff
changeset
|
125 |
end; |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
126 |
end |
1033
4a9f0d482028
mod_posix: Integrate with loggingmanager, register syslog sink, remove redundant logging code
Matthew Wild <mwild1@gmail.com>
parents:
1032
diff
changeset
|
127 |
require "core.loggingmanager".register_sink_type("syslog", syslog_sink_maker); |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
128 |
|
6002
3547f315a1f5
mod_posix: Daemonize by default only when installed
Kim Alvefur <zash@zash.se>
parents:
5776
diff
changeset
|
129 |
local daemonize = module:get_option("daemonize", prosody.installed); |
2073
72784ce0c0e0
mod_posix: Switch config option to 'daemonize', fall back to 'no_daemonize' if not set, default behaviour remains the same... daemonize if mod_posix is loaded
Matthew Wild <mwild1@gmail.com>
parents:
1712
diff
changeset
|
130 |
|
5175
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
131 |
local function remove_log_sinks() |
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
132 |
local lm = require "core.loggingmanager"; |
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
133 |
lm.register_sink_type("console", nil); |
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
134 |
lm.register_sink_type("stdout", nil); |
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
135 |
lm.reload_logging(); |
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
136 |
end |
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
137 |
|
2073
72784ce0c0e0
mod_posix: Switch config option to 'daemonize', fall back to 'no_daemonize' if not set, default behaviour remains the same... daemonize if mod_posix is loaded
Matthew Wild <mwild1@gmail.com>
parents:
1712
diff
changeset
|
138 |
if daemonize then |
587 | 139 |
local function daemonize_server() |
5177
add9ad38208e
mod_posix: Log a message explaining that we are detaching from the console
Kim Alvefur <zash@zash.se>
parents:
5175
diff
changeset
|
140 |
module:log("info", "Prosody is about to detach from the console, disabling further console output"); |
5175
fabaed7418a6
mod_posix: Remove console and stdout logging sinks before daemonizing
Kim Alvefur <zash@zash.se>
parents:
4993
diff
changeset
|
141 |
remove_log_sinks(); |
587 | 142 |
local ok, ret = pposix.daemonize(); |
143 |
if not ok then |
|
1062
f9a1ac50782b
mod_posix: Fix calls to log() (replace with module:log) and make some global accesses explicit
Matthew Wild <mwild1@gmail.com>
parents:
1061
diff
changeset
|
144 |
module:log("error", "Failed to daemonize: %s", ret); |
587 | 145 |
elseif ret and ret > 0 then |
146 |
os.exit(0); |
|
147 |
else |
|
1062
f9a1ac50782b
mod_posix: Fix calls to log() (replace with module:log) and make some global accesses explicit
Matthew Wild <mwild1@gmail.com>
parents:
1061
diff
changeset
|
148 |
module:log("info", "Successfully daemonized to PID %d", pposix.getpid()); |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
149 |
write_pidfile(); |
587 | 150 |
end |
151 |
end |
|
3022
948d511f479c
mod_posix: Don't add a server-starting event handler while the server-starting event is being fired.
Waqas Hussain <waqas20@gmail.com>
parents:
2925
diff
changeset
|
152 |
if not prosody.start_time then -- server-starting |
948d511f479c
mod_posix: Don't add a server-starting event handler while the server-starting event is being fired.
Waqas Hussain <waqas20@gmail.com>
parents:
2925
diff
changeset
|
153 |
daemonize_server(); |
948d511f479c
mod_posix: Don't add a server-starting event handler while the server-starting event is being fired.
Waqas Hussain <waqas20@gmail.com>
parents:
2925
diff
changeset
|
154 |
end |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
155 |
else |
1032
409f22d0430f
mod_posix: Remove pidfile on exit
Matthew Wild <mwild1@gmail.com>
parents:
991
diff
changeset
|
156 |
-- Not going to daemonize, so write the pid of this process |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
157 |
write_pidfile(); |
587 | 158 |
end |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
159 |
|
3537
7bbb19804d82
mod_posix: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3481
diff
changeset
|
160 |
module:hook("server-stopped", remove_pidfile); |
1032
409f22d0430f
mod_posix: Remove pidfile on exit
Matthew Wild <mwild1@gmail.com>
parents:
991
diff
changeset
|
161 |
|
1118
239d4362a040
mod_posix: Reload the config and reopen log files on SIGHUP
Matthew Wild <mwild1@gmail.com>
parents:
1092
diff
changeset
|
162 |
-- Set signal handlers |
6878
12d68f7b1be0
mod_posix: Detect failure to load util.signal by first pcall return value not by type of the second
Kim Alvefur <zash@zash.se>
parents:
6877
diff
changeset
|
163 |
if have_signal then |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
164 |
signal.signal("SIGTERM", function () |
1118
239d4362a040
mod_posix: Reload the config and reopen log files on SIGHUP
Matthew Wild <mwild1@gmail.com>
parents:
1092
diff
changeset
|
165 |
module:log("warn", "Received SIGTERM"); |
1238
f4c08caca3e7
mod_posix: Use global prosody object
Matthew Wild <mwild1@gmail.com>
parents:
1119
diff
changeset
|
166 |
prosody.unlock_globals(); |
f4c08caca3e7
mod_posix: Use global prosody object
Matthew Wild <mwild1@gmail.com>
parents:
1119
diff
changeset
|
167 |
prosody.shutdown("Received SIGTERM"); |
f4c08caca3e7
mod_posix: Use global prosody object
Matthew Wild <mwild1@gmail.com>
parents:
1119
diff
changeset
|
168 |
prosody.lock_globals(); |
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
169 |
end); |
1118
239d4362a040
mod_posix: Reload the config and reopen log files on SIGHUP
Matthew Wild <mwild1@gmail.com>
parents:
1092
diff
changeset
|
170 |
|
239d4362a040
mod_posix: Reload the config and reopen log files on SIGHUP
Matthew Wild <mwild1@gmail.com>
parents:
1092
diff
changeset
|
171 |
signal.signal("SIGHUP", function () |
239d4362a040
mod_posix: Reload the config and reopen log files on SIGHUP
Matthew Wild <mwild1@gmail.com>
parents:
1092
diff
changeset
|
172 |
module:log("info", "Received SIGHUP"); |
1238
f4c08caca3e7
mod_posix: Use global prosody object
Matthew Wild <mwild1@gmail.com>
parents:
1119
diff
changeset
|
173 |
prosody.reload_config(); |
f4c08caca3e7
mod_posix: Use global prosody object
Matthew Wild <mwild1@gmail.com>
parents:
1119
diff
changeset
|
174 |
prosody.reopen_logfiles(); |
1118
239d4362a040
mod_posix: Reload the config and reopen log files on SIGHUP
Matthew Wild <mwild1@gmail.com>
parents:
1092
diff
changeset
|
175 |
end); |
5776
bd0ff8ae98a8
Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
5452
diff
changeset
|
176 |
|
2332 | 177 |
signal.signal("SIGINT", function () |
178 |
module:log("info", "Received SIGINT"); |
|
179 |
prosody.unlock_globals(); |
|
180 |
prosody.shutdown("Received SIGINT"); |
|
181 |
prosody.lock_globals(); |
|
182 |
end); |
|
991
cd0d75de8345
mod_posix: Allow logging and pidfile options to take effect without needing to daemonize. Add the ability to catch SIGTERM.
Matthew Wild <mwild1@gmail.com>
parents:
735
diff
changeset
|
183 |
end |