File:
[LON-CAPA] /
loncom /
init.d /
loncontrol
Revision
1.27:
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Sat Jan 28 11:21:42 2006 UTC (18 years, 6 months ago) by
albertel
Branches:
MAIN
CVS tags:
version_2_3_X,
version_2_3_2,
version_2_3_1,
version_2_3_0,
version_2_2_X,
version_2_2_99_1,
version_2_2_99_0,
version_2_2_2,
version_2_2_1,
version_2_2_0,
version_2_1_X,
version_2_1_99_3,
version_2_1_99_2,
version_2_1_99_1,
version_2_1_99_0,
version_2_1_3,
HEAD
- suse puts it in /usr/sbin
1: #!/usr/bin/perl
2: #
3: # $Id: loncontrol,v 1.27 2006/01/28 11:21:42 albertel Exp $
4: #
5: # The LearningOnline Network with CAPA
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
29: # Startup script for the LON-CAPA network processes
30: #
31:
32: # chkconfig: 345 95 5
33: # description: LON-CAPA is a "network of knowledge". It is used to \
34: # distribute knowledge resources and instructional management.
35: # processnames: lonc, lond, lonsql
36: # pidfiles: /home/httpd/perl/logs/lon*.pid
37: # config: /etc/httpd/conf/loncapa.conf
38: # config: /home/httpd/lonTabs/hosts.tab
39: # config: /home/httpd/lonTabs/spare.tab
40:
41: $command=$ARGV[0]; $command=~s/[^a-z]//g;
42:
43: $ENV{'PATH'}="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin";
44: $ENV{'BASH_ENV'}="";
45:
46: { # Firewall variable scoping
47: # Firewall code is based on the code in FC2 /etc/init.d/ntpd
48: my $fw_chain = 'RH-Firewall-1-INPUT';
49: my $iptables = '/sbin/iptables';
50: if (! -e $iptables) {
51: $iptables = '/usr/sbin/iptables';
52: if (! -e $iptables) {
53: print("Unable to find iptables command\n");
54: }
55: }
56: my $lond_port = 5663;
57: my $lonhttpd_port = 8080;
58:
59: sub firewall_open_port {
60: return if (! &firewall_is_active);
61: if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { return; }
62: # iptables is running with our chain
63: #
64: # We could restrict the servers allowed to attempt to communicate
65: # here, but the logistics of updating the /home/httpd/lonTabs/host.tab
66: # file are likely to be a problem
67: foreach my $port ($lond_port,$lonhttpd_port) {
68: print "Opening firewall access on port $port.\n";
69:
70: my $firewall_command =
71: "$iptables -I $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
72: system($firewall_command);
73: my $return_status = $?>>8;
74: if ($return_status == 1) {
75: # Error
76: print "Error opening port.\n";
77: } elsif ($return_status == 2) {
78: # Bad command
79: print "Bad command error opening port. Command was\n".
80: " ".$firewall_command."\n";
81: }
82: }
83:
84: }
85:
86: sub firewall_is_port_open {
87: # returns 1 if the firewall port is open, 0 if not.
88: #
89: # check if firewall is active or installed
90: return if (! &firewall_is_active);
91: if (`$iptables -L -n 2>/dev/null | grep "tcp dpt:$port"`) {
92: return 1;
93: } else {
94: return 0;
95: }
96: }
97:
98: sub firewall_is_active {
99: if (-e '/proc/net/ip_tables_names') {
100: return 1;
101: } else {
102: return 0;
103: }
104: }
105:
106: sub firewall_close_port {
107: return if (! &firewall_is_active);
108: foreach my $port ($lond_port,$lonhttpd_port) {
109: print "Closing firewall access on port $port.\n";
110: my $firewall_command =
111: "$iptables -D $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
112: system($firewall_command);
113: my $return_status = $?>>8;
114: if ($return_status == 1) {
115: # Error
116: print "Error closing port.\n";
117: } elsif ($return_status == 2) {
118: # Bad command
119: print "Bad command error closing port. Command was\n".
120: " ".$firewall_command."\n";
121: }
122: }
123: }
124:
125: } # End firewall variable scope
126:
127: sub stop_daemon {
128: my ($daemon,$killallname)=@_;
129: my $pidfile="/home/httpd/perl/logs/$daemon.pid";
130:
131: printf("%-15s ",$daemon);
132: if (-e $pidfile) {
133: open(PIDFILE,$pidfile);
134: my $daemonpid=<PIDFILE>;
135: chomp($daemonpid);
136: kill TERM => $daemonpid;
137: sleep 1;
138: if (kill 0 => $daemonpid) {
139: kill KILL => $daemonpid;
140: sleep 1;
141: if (kill 0 => $daemonpid) {
142: print("failed to kill");
143: } else {
144: print("killed");
145: }
146: } else {
147: print("stopped");
148: }
149: } else {
150: print("not running");
151: }
152: system("killall -q -0 $killallname");
153: if ($? == 0) {
154: system("killall -q $killallname");
155: print(", killed off extraneous processes");
156: }
157: unlink($pidfile);
158: print("\n");
159: }
160:
161:
162: if (($command eq "restartold") or ($command eq "reloadold")) {
163: print 'Restarting LON-CAPA'."\n";
164: print 'Ending LON-CAPA client and daemon processes'."\n";
165: foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached') {
166: &stop_daemon($daemon,$daemon);
167: }
168: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
169: "\n";
170: system("su www -c '/home/httpd/perl/loncron --oldlonc --justcheckdaemons'");
171: } elsif ($command eq "restart") {
172: print 'Restarting LON-CAPA'."\n";
173: print 'Ending LON-CAPA client and daemon processes'."\n";
174: foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached') {
175: my $killallname=$daemon;
176: if ($daemon eq 'lonc') { $killallname='loncnew'; }
177: &stop_daemon($daemon,$killallname);
178: }
179: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
180: "\n";
181: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
182: } elsif ($command eq "stop") {
183: print 'Stopping LON-CAPA'."\n";
184: foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached') {
185: my $killallname=$daemon;
186: if ($daemon eq 'lonc') { $killallname='loncnew'; }
187: &stop_daemon($daemon,$killallname);
188: }
189: &firewall_close_port();
190: } elsif ($command eq "startold") {
191: &firewall_open_port();
192: print 'Starting LON-CAPA'."\n";
193: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
194: "\n";
195: system("su www -c '/home/httpd/perl/loncron --oldlonc --justcheckdaemons'");
196: } elsif ($command eq "start") {
197: &firewall_open_port();
198: print 'Starting LON-CAPA'."\n";
199: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
200: "\n";
201: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
202: } elsif ($command eq "reload") {
203: print 'Reload LON-CAPA config files'."\n";
204: system("su www -c '/home/httpd/perl/loncron --justreload'");
205: } elsif ($command eq "status") {
206: $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
207: if ($response=~/No such file or directory/) {
208: print 'LON-CAPA is not running.'."\n";
209: } else {
210: print 'LON-CAPA is running.'."\n";
211: system("su www -c '/home/httpd/perl/loncron --justcheckconnections'");
212: }
213: if (! &firewall_is_active) {
214: print 'The iptables firewall is not active'."\n";
215: }
216: if (&firewall_is_port_open()) {
217: print 'The LON-CAPA port is open in firewall.'."\n";
218: } elsif (&firewall_is_active) {
219: print 'The LON-CAPA port is NOT open in running firewall!'."\n";
220: }
221: } else {
222: print 'You need to specify one of restart|stop|start|status on the command line.'."\n";
223: }
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