1 |
knops.gerd |
11 |
#!/usr/bin/perl -w |
2 |
|
|
############################################################################### |
3 |
|
|
# Meteor |
4 |
|
|
# An HTTP server for the 2.0 web |
5 |
|
|
# Copyright (c) 2006 contributing authors |
6 |
|
|
# |
7 |
|
|
# The Meteor daemon |
8 |
|
|
# |
9 |
|
|
# Main program should call Meteor::Config::setCommandLineParameters(@ARGV),. |
10 |
|
|
# Afterwards anybody can access $::CONF{<parameterName>}, where |
11 |
|
|
# <parameterName> is any valid parameter (except 'Help') listed in the |
12 |
|
|
# @DEFAULTS array below. |
13 |
|
|
# |
14 |
|
|
############################################################################### |
15 |
|
|
# |
16 |
|
|
# This program is free software; you can redistribute it and/or modify it |
17 |
|
|
# under the terms of the GNU General Public License as published by the Free |
18 |
|
|
# Software Foundation; either version 2 of the License, or (at your option) |
19 |
|
|
# any later version. |
20 |
|
|
# |
21 |
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT |
22 |
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
23 |
|
|
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
24 |
|
|
# more details. |
25 |
|
|
# |
26 |
|
|
# You should have received a copy of the GNU General Public License along |
27 |
|
|
# with this program; if not, write to the Free Software Foundation, Inc., |
28 |
|
|
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
29 |
|
|
# |
30 |
|
|
# For more information visit www.meteorserver.org |
31 |
|
|
# |
32 |
|
|
############################################################################### |
33 |
|
|
|
34 |
knops.gerd |
42 |
############################################################################### |
35 |
|
|
# meterod version |
36 |
|
|
################################################################################ |
37 |
|
|
|
38 |
andrew.betts |
52 |
$::VERSION='1.05.08'; |
39 |
knops.gerd |
45 |
$::RELEASE_DATE='not yet released'; |
40 |
knops.gerd |
11 |
|
41 |
|
|
############################################################################### |
42 |
|
|
# Configuration |
43 |
|
|
############################################################################### |
44 |
|
|
|
45 |
|
|
use strict; |
46 |
|
|
|
47 |
knops.gerd |
48 |
use Socket; |
48 |
|
|
|
49 |
knops.gerd |
11 |
use Meteor::Syslog; |
50 |
|
|
|
51 |
|
|
use Meteor::Socket; |
52 |
|
|
use Meteor::Connection; |
53 |
|
|
use Meteor::Controller; |
54 |
|
|
use Meteor::Subscriber; |
55 |
|
|
use Meteor::Channel; |
56 |
|
|
use Meteor::Document; |
57 |
|
|
use Meteor::Config; |
58 |
|
|
|
59 |
|
|
$::CRLF="\r\n"; # Line separator to be used throughout all modules |
60 |
|
|
|
61 |
|
|
our $CONTROL_QUEUE_SIZE=5; |
62 |
|
|
our $SUBSCRIBER_QUEUE_SIZE=20; |
63 |
|
|
|
64 |
|
|
our $MAIN_LOOP_TIMEOUT=60; |
65 |
|
|
our $AGE_CHECK_INTERVALL=60; |
66 |
|
|
|
67 |
|
|
our $MAX_EXIT_DELAY=120; |
68 |
knops.gerd |
48 |
|
69 |
|
|
our $UDP_MAX_MESSAGE_SIZE=8192; |
70 |
knops.gerd |
11 |
|
71 |
|
|
############################################################################### |
72 |
|
|
# Main |
73 |
|
|
############################################################################### |
74 |
|
|
|
75 |
|
|
# |
76 |
knops.gerd |
25 |
# Record startup time |
77 |
|
|
# |
78 |
|
|
$::STARTUP_TIME=time; |
79 |
|
|
$::STARTUP_TIME+=0; # avoid warning |
80 |
|
|
|
81 |
|
|
# |
82 |
knops.gerd |
11 |
# Program name |
83 |
|
|
# |
84 |
|
|
$::PGM=$0; |
85 |
|
|
$::PGM=~s/^.*\///; |
86 |
|
|
|
87 |
|
|
# |
88 |
|
|
# Handle command line options and config file |
89 |
|
|
# |
90 |
|
|
Meteor::Config->setCommandLineParameters(@ARGV); |
91 |
|
|
|
92 |
|
|
# |
93 |
|
|
# Do something about warn and die |
94 |
|
|
# |
95 |
|
|
unless($::CONF{'Debug'}) |
96 |
|
|
{ |
97 |
|
|
$SIG{'__WARN__'}=\&Meteor::Syslog::myWarn; |
98 |
|
|
$SIG{'__DIE__'}=\&Meteor::Syslog::myDie; |
99 |
|
|
} |
100 |
|
|
|
101 |
|
|
&::syslog('info',"$::PGM launched!"); |
102 |
|
|
|
103 |
|
|
# |
104 |
|
|
# Daemonize |
105 |
|
|
# |
106 |
|
|
{ |
107 |
|
|
$0="$::PGM daemon"; |
108 |
|
|
|
109 |
knops.gerd |
47 |
my $facility=$::CONF{'SyslogFacility'} || $Meteor::Syslog::DEFAULT_FACILITY; |
110 |
|
|
|
111 |
|
|
unless($::CONF{'Debug'} || $facility eq 'none') |
112 |
knops.gerd |
11 |
{ |
113 |
|
|
# close standard file descriptors |
114 |
|
|
close(STDIN); |
115 |
|
|
close(STDOUT); |
116 |
|
|
close(STDERR); |
117 |
|
|
chdir("/"); |
118 |
|
|
umask(0); |
119 |
|
|
# fork and exit parent |
120 |
|
|
exit if fork; |
121 |
|
|
setpgrp(0, $$) if defined $SIG{TTOU}; |
122 |
|
|
$SIG{TTOU}='ignore' if defined $SIG{TTOU}; |
123 |
|
|
|
124 |
|
|
# Avoid 'stdin reopened for output' warning with newer perls |
125 |
|
|
open(NULL,'/dev/null'); |
126 |
|
|
<NULL> if(0); |
127 |
|
|
|
128 |
|
|
open(OUT,">/var/run/$::PGM.pid"); |
129 |
|
|
print OUT "$$\n"; |
130 |
|
|
close(OUT); |
131 |
|
|
} |
132 |
|
|
else |
133 |
|
|
{ |
134 |
knops.gerd |
47 |
&::syslog('info',"PID\t%s",$$); |
135 |
knops.gerd |
11 |
} |
136 |
|
|
} |
137 |
|
|
|
138 |
|
|
# |
139 |
|
|
# Signal handlers |
140 |
|
|
# |
141 |
|
|
$::HUP=$::TERM=$::USR1=$::USR2=0; |
142 |
|
|
$SIG{'HUP'}=sub{$::HUP=1}; |
143 |
|
|
$SIG{'TERM'}=sub{$::TERM=1}; |
144 |
|
|
$SIG{'USR1'}=sub{$::USR1=1}; |
145 |
|
|
$SIG{'USR2'}=sub{$::USR2=1}; |
146 |
|
|
|
147 |
|
|
# |
148 |
|
|
# Run server |
149 |
|
|
# |
150 |
|
|
my $con_counter=0; |
151 |
|
|
my $con; |
152 |
|
|
|
153 |
|
|
my $controlServer=Meteor::Socket->newServer( |
154 |
|
|
$::CONF{'ControllerPort'}, |
155 |
|
|
$CONTROL_QUEUE_SIZE, |
156 |
|
|
$::CONF{'ControllerIP'} |
157 |
|
|
); |
158 |
|
|
my $controlServerFN=$controlServer->fileno(); |
159 |
|
|
|
160 |
|
|
my $subscriberServer=Meteor::Socket->newServer( |
161 |
|
|
$::CONF{'SubscriberPort'}, |
162 |
|
|
$SUBSCRIBER_QUEUE_SIZE, |
163 |
|
|
$::CONF{'SubscriberIP'} |
164 |
|
|
); |
165 |
|
|
my $subscriberServerFN=$subscriberServer->fileno(); |
166 |
|
|
|
167 |
knops.gerd |
48 |
my $udpServer=undef; |
168 |
|
|
my $udpPort=$::CONF{'UDPPort'}; |
169 |
|
|
my $udpServerFN=undef; |
170 |
|
|
if($udpPort && $udpPort>0) |
171 |
|
|
{ |
172 |
|
|
$udpServer=Meteor::Socket->newUDPServer( |
173 |
|
|
$udpPort, |
174 |
|
|
$::CONF{'UDPIP'} |
175 |
|
|
); |
176 |
|
|
$udpServerFN=$udpServer->fileno(); |
177 |
|
|
} |
178 |
|
|
|
179 |
knops.gerd |
11 |
my $serverVector=''; |
180 |
|
|
vec($serverVector,$controlServerFN,1)=1; |
181 |
|
|
vec($serverVector,$subscriberServerFN,1)=1; |
182 |
knops.gerd |
48 |
vec($serverVector,$udpServerFN,1)=1 if(defined($udpServerFN)); |
183 |
knops.gerd |
11 |
|
184 |
|
|
my $lastAgeCheck=time; |
185 |
|
|
|
186 |
|
|
my $nextPing=undef; |
187 |
|
|
if(exists($::CONF{'PingInterval'}) && $::CONF{'PingInterval'}>2) |
188 |
|
|
{ |
189 |
|
|
$nextPing=$::CONF{'PingInterval'}+$lastAgeCheck; |
190 |
|
|
} |
191 |
|
|
|
192 |
|
|
while(!$::TERM) |
193 |
|
|
{ |
194 |
|
|
eval |
195 |
|
|
{ |
196 |
|
|
while(!$::TERM) |
197 |
|
|
{ |
198 |
|
|
my $rVec=$serverVector; |
199 |
|
|
my $wVec=''; |
200 |
|
|
my $eVec=''; |
201 |
knops.gerd |
47 |
|
202 |
knops.gerd |
11 |
my $rout; |
203 |
|
|
my $wout; |
204 |
|
|
my $eout; |
205 |
knops.gerd |
47 |
|
206 |
knops.gerd |
11 |
Meteor::Connection->addAllHandleBits(\$rVec,\$wVec,\$eVec); |
207 |
|
|
|
208 |
|
|
my $timeout=$MAIN_LOOP_TIMEOUT; |
209 |
|
|
if(defined($nextPing)) |
210 |
|
|
{ |
211 |
|
|
$timeout=$nextPing-time; |
212 |
|
|
} |
213 |
|
|
|
214 |
|
|
my $result=0; |
215 |
|
|
if($timeout>0) |
216 |
|
|
{ |
217 |
|
|
$result=&Meteor::Socket::sselect($rout=$rVec,$wout=$wVec,$eout=$eVec,$timeout); |
218 |
|
|
} |
219 |
|
|
|
220 |
|
|
if($result>0) |
221 |
|
|
{ |
222 |
|
|
if(vec($rout,$controlServerFN,1)) |
223 |
|
|
{ |
224 |
|
|
Meteor::Controller->newFromServer($controlServer); |
225 |
|
|
} |
226 |
|
|
if(vec($rout,$subscriberServerFN,1)) |
227 |
|
|
{ |
228 |
|
|
Meteor::Subscriber->newFromServer($subscriberServer); |
229 |
|
|
} |
230 |
knops.gerd |
48 |
if(defined($udpServerFN) && vec($rout,$udpServerFN,1)) |
231 |
|
|
{ |
232 |
|
|
&handleUPD($udpServer); |
233 |
|
|
} |
234 |
knops.gerd |
11 |
|
235 |
|
|
Meteor::Connection->checkAllHandleBits($rout,$wout,$eout); |
236 |
|
|
} |
237 |
|
|
elsif($result<0) |
238 |
|
|
{ |
239 |
|
|
&::syslog('crit',"Select failed: $!"); |
240 |
|
|
sleep(30); |
241 |
|
|
} |
242 |
|
|
|
243 |
|
|
if($::HUP) |
244 |
|
|
{ |
245 |
|
|
$::HUP=0; |
246 |
|
|
|
247 |
|
|
&::syslog('info',"Received SIGHUP, re-reading config and clearing document cache!"); |
248 |
|
|
|
249 |
|
|
Meteor::Config->readConfig(); |
250 |
|
|
Meteor::Config->updateConfig(); |
251 |
|
|
|
252 |
|
|
Meteor::Document->clearDocuments() |
253 |
|
|
} |
254 |
|
|
|
255 |
|
|
if($::USR1) |
256 |
|
|
{ |
257 |
|
|
$::USR1=0; |
258 |
|
|
|
259 |
|
|
&::syslog('info',"Received SIGUSR1, clearing channel buffers!"); |
260 |
|
|
|
261 |
|
|
Meteor::Channel->clearAllBuffers(); |
262 |
|
|
} |
263 |
|
|
|
264 |
|
|
if($::USR2) |
265 |
|
|
{ |
266 |
|
|
$::USR2=0; |
267 |
|
|
|
268 |
|
|
&::syslog('info',"Received SIGUSR2, clearing document cache!"); |
269 |
|
|
|
270 |
|
|
Meteor::Document->clearDocuments() |
271 |
|
|
} |
272 |
|
|
|
273 |
|
|
my $t=time; |
274 |
|
|
if($t>$lastAgeCheck+$AGE_CHECK_INTERVALL) |
275 |
|
|
{ |
276 |
|
|
my $minTimeStap=time-$::CONF{'MaxMessageAge'}; |
277 |
|
|
Meteor::Channel->trimMessageStoresByTimestamp($minTimeStap); |
278 |
|
|
$lastAgeCheck=time; |
279 |
|
|
$t=$lastAgeCheck; |
280 |
|
|
|
281 |
|
|
Meteor::Subscriber->checkPersistentConnectionsForMaxTime(); |
282 |
|
|
} |
283 |
|
|
|
284 |
|
|
if(defined($nextPing) && $nextPing<=$t) |
285 |
|
|
{ |
286 |
|
|
$nextPing=undef; |
287 |
|
|
|
288 |
|
|
Meteor::Subscriber->pingPersistentConnections(); |
289 |
|
|
|
290 |
|
|
if(exists($::CONF{'MaxMessageAge'}) && $::CONF{'MaxMessageAge'}>2) |
291 |
|
|
{ |
292 |
|
|
$nextPing=$::CONF{'PingInterval'}+time; |
293 |
|
|
} |
294 |
|
|
} |
295 |
|
|
} |
296 |
|
|
}; |
297 |
|
|
unless($::TERM) |
298 |
|
|
{ |
299 |
|
|
&::syslog('alert',"$::PGM loop died (will restart in 2 seconds): $@"); |
300 |
|
|
sleep(2); |
301 |
|
|
} |
302 |
|
|
} |
303 |
|
|
|
304 |
|
|
# |
305 |
|
|
# Proper shutdown |
306 |
|
|
# |
307 |
|
|
if($::TERM) |
308 |
|
|
{ |
309 |
|
|
&::syslog('info',"Received SIGTERM, begin shutdown!"); |
310 |
|
|
|
311 |
|
|
$subscriberServer->close(); |
312 |
|
|
$controlServer->close(); |
313 |
|
|
|
314 |
|
|
unlink("/var/run/$::PGM.pid") unless($::CONF{'Debug'}); |
315 |
|
|
|
316 |
|
|
Meteor::Connection->closeAllConnections(); |
317 |
|
|
|
318 |
|
|
my $timoutAt=time+$MAX_EXIT_DELAY; |
319 |
|
|
|
320 |
|
|
while(Meteor::Connection->connectionCount() && time<$timoutAt) |
321 |
|
|
{ |
322 |
|
|
my $rVec=''; |
323 |
|
|
my $wVec=''; |
324 |
|
|
my $eVec=''; |
325 |
|
|
|
326 |
|
|
my $rout; |
327 |
|
|
my $wout; |
328 |
|
|
my $eout; |
329 |
|
|
|
330 |
|
|
Meteor::Connection->addAllHandleBits(\$rVec,\$wVec,\$eVec); |
331 |
|
|
|
332 |
|
|
my $result=&Meteor::Socket::sselect($rout=$rVec,$wout=$wVec,$eout=$eVec,$timoutAt-time); |
333 |
|
|
|
334 |
|
|
if($result>0) |
335 |
|
|
{ |
336 |
|
|
Meteor::Connection->checkAllHandleBits($rout,$wout,$eout); |
337 |
|
|
} |
338 |
|
|
} |
339 |
|
|
|
340 |
|
|
if(my $cnt=Meteor::Connection->connectionCount()) |
341 |
|
|
{ |
342 |
|
|
&::syslog('info',"$cnt client(s) unresponsive, will shutdown anyway"); |
343 |
|
|
|
344 |
|
|
exit(1); |
345 |
|
|
} |
346 |
|
|
|
347 |
|
|
&::syslog('info',"shutdown succeeded"); |
348 |
|
|
|
349 |
|
|
exit(0); |
350 |
|
|
} |
351 |
|
|
|
352 |
|
|
&::syslog('emerg',"$::PGM loop exited"); |
353 |
|
|
|
354 |
knops.gerd |
48 |
############################################################################### |
355 |
|
|
# Subroutines |
356 |
|
|
############################################################################### |
357 |
|
|
sub handleUPD { |
358 |
|
|
$udpServer=shift; |
359 |
|
|
|
360 |
|
|
my $line; |
361 |
|
|
my $hispaddr=recv($udpServer->{'handle'},$line,$::UDP_MAX_MESSAGE_SIZE,0); |
362 |
|
|
|
363 |
|
|
&::syslog('debug',"udp message received: %s",$line); |
364 |
|
|
|
365 |
|
|
return unless($line=~s/^(\S+)\s//); |
366 |
|
|
|
367 |
|
|
my $cmd=$1; |
368 |
|
|
|
369 |
|
|
if($cmd eq 'ADDMESSAGE') |
370 |
|
|
{ |
371 |
|
|
return unless($line=~s/^(\S+)\s//); |
372 |
|
|
|
373 |
|
|
my $channelName=$1; |
374 |
|
|
my $channel=Meteor::Channel->channelWithName($channelName); |
375 |
|
|
my $msg=$channel->addMessage($line); |
376 |
|
|
my $msgID=$msg->id(); |
377 |
|
|
&::syslog('debug',"udp: new message added, ID %s",$msgID); |
378 |
|
|
} |
379 |
|
|
} |
380 |
|
|
|
381 |
knops.gerd |
11 |
1; |
382 |
andrew.betts |
3 |
############################################################################EOF |