Annotation of loncom/init.d/loncontrol, revision 1.24
1.1 harris41 1: #!/usr/bin/perl
1.2 harris41 2: #
1.24 ! albertel 3: # $Id: loncontrol,v 1.23 2004/12/20 14:28:56 matthew Exp $
1.23 matthew 4: #
1.6 harris41 5: # The LearningOnline Network with CAPA
6: #
1.21 matthew 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: #
1.2 harris41 29: # Startup script for the LON-CAPA network processes
1.6 harris41 30: #
1.7 harris41 31:
1.3 harris41 32: # chkconfig: 345 95 5
1.21 matthew 33: # description: LON-CAPA is a "network of knowledge". It is used to \
1.6 harris41 34: # distribute knowledge resources and instructional management.
1.2 harris41 35: # processnames: lonc, lond, lonsql
36: # pidfiles: /home/httpd/perl/logs/lon*.pid
1.7 harris41 37: # config: /etc/httpd/conf/loncapa.conf
1.2 harris41 38: # config: /home/httpd/lonTabs/hosts.tab
39: # config: /home/httpd/lonTabs/spare.tab
40:
1.1 harris41 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:
1.20 matthew 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';
1.22 matthew 50: my $lond_port = 5663;
51: my $lonhttpd_port = 8080;
1.20 matthew 52:
53: sub firewall_open_port {
54: return if (! &firewall_is_active);
55: if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { return; }
56: # iptables is running with our chain
57: #
58: # We could restrict the servers allowed to attempt to communicate
59: # here, but the logistics of updating the /home/httpd/lonTabs/host.tab
60: # file are likely to be a problem
1.22 matthew 61: foreach my $port ($lond_port,$lonhttpd_port) {
62: print "Opening firewall access on port $port.\n";
63:
64: my $firewall_command =
65: "$iptables -I $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
66: system($firewall_command);
67: my $return_status = $?>>8;
68: if ($return_status == 1) {
69: # Error
70: print "Error opening port.\n";
71: } elsif ($return_status == 2) {
72: # Bad command
73: print "Bad command error opening port. Command was\n".
74: " ".$firewall_command."\n";
75: }
1.20 matthew 76: }
1.22 matthew 77:
1.20 matthew 78: }
79:
80: sub firewall_is_port_open {
81: # returns 1 if the firewall port is open, 0 if not.
82: #
83: # check if firewall is active or installed
84: return if (! &firewall_is_active);
85: if (`$iptables -L -n 2>/dev/null | grep "tcp dpt:$port"`) {
86: return 1;
87: } else {
88: return 0;
89: }
90: }
91:
92: sub firewall_is_active {
93: if (-e '/proc/net/ip_tables_names') {
94: return 1;
95: } else {
96: return 0;
97: }
98: }
99:
100: sub firewall_close_port {
101: return if (! &firewall_is_active);
1.22 matthew 102: foreach my $port ($lond_port,$lonhttpd_port) {
103: print "Closing firewall access on port $port.\n";
104: my $firewall_command =
105: "$iptables -D $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
106: system($firewall_command);
107: my $return_status = $?>>8;
108: if ($return_status == 1) {
109: # Error
110: print "Error closing port.\n";
111: } elsif ($return_status == 2) {
112: # Bad command
113: print "Bad command error closing port. Command was\n".
114: " ".$firewall_command."\n";
115: }
1.20 matthew 116: }
117: }
118:
119: } # End firewall variable scope
120:
1.11 albertel 121: sub stop_daemon {
1.19 albertel 122: my ($daemon,$killallname)=@_;
1.11 albertel 123: my $pidfile="/home/httpd/perl/logs/$daemon.pid";
124:
1.24 ! albertel 125: printf("%-15s ",$daemon);
1.11 albertel 126: if (-e $pidfile) {
127: open(PIDFILE,$pidfile);
128: my $daemonpid=<PIDFILE>;
129: chomp($daemonpid);
130: kill TERM => $daemonpid;
131: sleep 2;
132: if (kill 0 => $daemonpid) {
133: kill KILL => $daemonpid;
134: sleep 2;
135: if (kill 0 => $daemonpid) {
1.19 albertel 136: print("failed to kill");
1.11 albertel 137: } else {
1.19 albertel 138: print("killed");
1.11 albertel 139: }
140: } else {
1.19 albertel 141: print("stopped");
1.11 albertel 142: }
1.19 albertel 143: } else {
144: print("not running");
145: }
146: system("killall -q -0 $killallname");
147: if ($? == 0) {
148: system("killall -q $killallname");
149: print(", killed off extraneous processes");
1.11 albertel 150: }
1.24 ! albertel 151: unlink($pidfile);
1.19 albertel 152: print("\n");
1.11 albertel 153: }
154:
1.20 matthew 155:
1.16 albertel 156: if (($command eq "restartold") or ($command eq "reloadold")) {
1.6 harris41 157: print 'Restarting LON-CAPA'."\n";
158: print 'Ending LON-CAPA client and daemon processes'."\n";
1.24 ! albertel 159: foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached') {
1.19 albertel 160: &stop_daemon($daemon,$daemon);
1.11 albertel 161: }
1.6 harris41 162: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
163: "\n";
1.18 albertel 164: system("su www -c '/home/httpd/perl/loncron --oldlonc --justcheckdaemons'");
1.16 albertel 165: } elsif (($command eq "restart") or ($command eq "reload")) {
1.12 albertel 166: print 'Restarting LON-CAPA'."\n";
167: print 'Ending LON-CAPA client and daemon processes'."\n";
1.24 ! albertel 168: foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached') {
1.19 albertel 169: my $killallname=$daemon;
170: if ($daemon eq 'lonc') { $killallname='loncnew'; }
171: &stop_daemon($daemon,$killallname);
1.12 albertel 172: }
173: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
174: "\n";
1.18 albertel 175: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
1.16 albertel 176: } elsif ($command eq "stop") {
1.6 harris41 177: print 'Stopping LON-CAPA'."\n";
1.24 ! albertel 178: foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached') {
1.19 albertel 179: my $killallname=$daemon;
180: if ($daemon eq 'lonc') { $killallname='loncnew'; }
181: &stop_daemon($daemon,$killallname);
1.11 albertel 182: }
1.20 matthew 183: &firewall_close_port();
1.16 albertel 184: } elsif ($command eq "startold") {
1.20 matthew 185: &firewall_open_port();
1.6 harris41 186: print 'Starting LON-CAPA'."\n";
187: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
188: "\n";
1.18 albertel 189: system("su www -c '/home/httpd/perl/loncron --oldlonc --justcheckdaemons'");
1.16 albertel 190: } elsif ($command eq "start") {
1.20 matthew 191: &firewall_open_port();
1.12 albertel 192: print 'Starting LON-CAPA'."\n";
193: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
194: "\n";
1.18 albertel 195: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
1.16 albertel 196: } elsif ($command eq "status") {
1.1 harris41 197: $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
198: if ($response=~/No such file or directory/) {
1.6 harris41 199: print 'LON-CAPA is not running.'."\n";
1.18 albertel 200: } else {
1.6 harris41 201: print 'LON-CAPA is running.'."\n";
1.18 albertel 202: system("su www -c '/home/httpd/perl/loncron --justcheckconnections'");
1.1 harris41 203: }
1.20 matthew 204: if (! &firewall_is_active) {
205: print 'The iptables firewall is not active'."\n";
206: }
207: if (&firewall_is_port_open()) {
208: print 'The LON-CAPA port is open in firewall.'."\n";
209: } elsif (&firewall_is_active) {
210: print 'The LON-CAPA port is NOT open in running firewall!'."\n";
211: }
1.16 albertel 212: } else {
1.18 albertel 213: print 'You need to specify one of restart|stop|start|status on the command line.'."\n";
1.1 harris41 214: }
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