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plugins/mod_posix.lua @ 2373:13090fc6ad90
mod_bosh: Update for new connection API
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 17 Dec 2009 20:28:32 +0000 |
parent | 2342:8b20702d5b9e |
child | 2433:65b794860e1b |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2009 Matthew Wild |
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3 -- Copyright (C) 2008-2009 Waqas Hussain |
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4 -- |
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5 -- This project is MIT/X11 licensed. Please see the |
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6 -- COPYING file in the source package for more information. |
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7 -- |
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8 |
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9 |
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10 local want_pposix_version = "0.3.1"; |
587 | 11 |
12 local pposix = assert(require "util.pposix"); | |
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 |
587 | 14 |
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15 local signal = select(2, pcall(require, "util.signal")); |
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16 if type(signal) == "string" then |
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17 module:log("warn", "Couldn't load signal library, won't respond to SIGTERM"); |
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18 end |
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19 |
587 | 20 local logger_set = require "util.logger".setwriter; |
21 | |
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22 local prosody = _G.prosody; |
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23 |
587 | 24 module.host = "*"; -- we're a global module |
25 | |
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26 -- Allow switching away from root, some people like strange ports. |
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27 module:add_event_hook("server-started", function () |
1712 | 28 local uid = module:get_option("setuid"); |
29 local gid = module:get_option("setgid"); | |
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30 if gid then |
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31 local success, msg = pposix.setgid(gid); |
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32 if success then |
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33 module:log("debug", "Changed group to "..gid.." successfully."); |
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34 else |
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35 module:log("error", "Failed to change group to "..gid..". Error: "..msg); |
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36 prosody.shutdown("Failed to change group to "..gid); |
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37 end |
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38 end |
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39 if uid then |
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40 local success, msg = pposix.setuid(uid); |
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41 if success then |
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42 module:log("debug", "Changed user to "..uid.." successfully."); |
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43 else |
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44 module:log("error", "Failed to change user to "..uid..". Error: "..msg); |
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45 prosody.shutdown("Failed to change user to "..uid); |
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46 end |
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47 end |
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48 end); |
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49 |
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50 -- Don't even think about it! |
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51 module:add_event_hook("server-starting", function () |
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53 if not suid or suid == 0 or suid == "root" then |
1712 | 54 if pposix.getuid() == 0 and not module:get_option("run_as_root") then |
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55 module:log("error", "Danger, Will Robinson! Prosody doesn't need to be run as root, so don't do it!"); |
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56 module:log("error", "For more information on running Prosody as root, see http://prosody.im/doc/root"); |
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57 prosody.shutdown("Refusing to run as root"); |
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58 end |
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59 end |
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60 end); |
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61 |
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62 local pidfile_written; |
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63 |
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64 local function remove_pidfile() |
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65 if pidfile_written then |
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66 os.remove(pidfile_written); |
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67 pidfile_written = nil; |
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68 end |
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69 end |
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70 |
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71 local function write_pidfile() |
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72 if pidfile_written then |
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73 remove_pidfile(); |
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74 end |
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75 local pidfile = module:get_option("pidfile"); |
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76 if pidfile then |
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77 local pf, err = io.open(pidfile, "w+"); |
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78 if not pf then |
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79 module:log("error", "Couldn't write pidfile; %s", err); |
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80 else |
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81 pf:write(tostring(pposix.getpid())); |
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82 pf:close(); |
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83 pidfile_written = pidfile; |
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84 end |
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85 end |
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86 end |
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87 |
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88 local syslog_opened |
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89 function syslog_sink_maker(config) |
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90 if not syslog_opened then |
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91 pposix.syslog_open("prosody"); |
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92 syslog_opened = true; |
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93 end |
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94 local syslog, format = pposix.syslog_log, string.format; |
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95 return function (name, level, message, ...) |
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96 if ... then |
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97 syslog(level, format(message, ...)); |
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98 else |
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99 syslog(level, message); |
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100 end |
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101 end; |
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102 end |
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103 require "core.loggingmanager".register_sink_type("syslog", syslog_sink_maker); |
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104 |
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105 local daemonize = module:get_option("daemonize"); |
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106 if daemonize == nil then |
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107 local no_daemonize = module:get_option("no_daemonize"); --COMPAT w/ 0.5 |
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108 daemonize = not no_daemonize; |
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109 if no_daemonize ~= nil then |
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110 module:log("warn", "The 'no_daemonize' option is now replaced by 'daemonize'"); |
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111 module:log("warn", "Update your config from 'no_daemonize = %s' to 'daemonize = %s'", tostring(no_daemonize), tostring(daemonize)); |
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112 end |
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113 end |
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114 |
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115 if daemonize then |
587 | 116 local function daemonize_server() |
117 local ok, ret = pposix.daemonize(); | |
118 if not ok then | |
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119 module:log("error", "Failed to daemonize: %s", ret); |
587 | 120 elseif ret and ret > 0 then |
121 os.exit(0); | |
122 else | |
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123 module:log("info", "Successfully daemonized to PID %d", pposix.getpid()); |
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124 write_pidfile(); |
587 | 125 end |
126 end | |
127 module:add_event_hook("server-starting", daemonize_server); | |
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128 else |
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129 -- Not going to daemonize, so write the pid of this process |
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130 write_pidfile(); |
587 | 131 end |
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132 |
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133 module:add_event_hook("server-stopped", remove_pidfile); |
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134 |
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135 -- Set signal handlers |
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136 if signal.signal then |
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137 signal.signal("SIGTERM", function () |
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138 module:log("warn", "Received SIGTERM"); |
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139 signal.signal("SIGTERM", function () end); -- Fixes us getting into some kind of loop |
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140 prosody.unlock_globals(); |
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141 prosody.shutdown("Received SIGTERM"); |
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142 prosody.lock_globals(); |
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143 end); |
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144 |
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145 signal.signal("SIGHUP", function () |
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146 module:log("info", "Received SIGHUP"); |
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147 prosody.reload_config(); |
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148 prosody.reopen_logfiles(); |
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149 end); |
2332 | 150 |
151 signal.signal("SIGINT", function () | |
152 module:log("info", "Received SIGINT"); | |
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153 signal.signal("SIGINT", function () end); -- Fix to not loop |
2332 | 154 prosody.unlock_globals(); |
155 prosody.shutdown("Received SIGINT"); | |
156 prosody.lock_globals(); | |
157 end); | |
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158 end |