1: #!/usr/bin/perl
2: #
3: # $Id: loncontrol,v 1.44 2015/09/20 18:31:33 raeburn 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, lonmaxima, lonr
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: # SuSE chkconfig/insserv info
41: ### BEGIN INIT INFO
42: # Provides: loncapa
43: # Required-Start: SuSEfirewall2_setup mysql apache2 $network $remote_fs
44: # Should-Start: $ALL
45: # Required-Stop:
46: # Default-Start: 3 5
47: # Default-Stop:
48: # Description: Starts the LON-CAPA services
49: ### END INIT INFO
50:
51: use strict;
52: use lib '/home/httpd/lib/perl/';
53: use LONCAPA::Configuration;
54: use LONCAPA::Firewall;
55: use Apache::lonnet;
56:
57: my $command=$ARGV[0]; $command=~s/[^a-z]//g;
58:
59: $ENV{'PATH'}="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin";
60: $ENV{'BASH_ENV'}="";
61:
62: sub stop_daemon {
63: my ($daemon,$killallname)=@_;
64: my $pidfile="/home/httpd/perl/logs/$daemon.pid";
65:
66: printf("%-15s ",$daemon);
67: if (-e $pidfile) {
68: open(PIDFILE,$pidfile);
69: my $daemonpid=<PIDFILE>;
70: chomp($daemonpid);
71: kill TERM => $daemonpid;
72: my $count=0;
73: while ($count++ < 5 && kill(0 => $daemonpid)) {
74: sleep 1;
75: }
76: if (kill 0 => $daemonpid) {
77: kill KILL => $daemonpid;
78: sleep 1;
79: if (kill 0 => $daemonpid) {
80: print("failed to kill");
81: } else {
82: print("killed");
83: }
84: } else {
85: print("stopped");
86: }
87: } else {
88: print("not running");
89: }
90: system("killall -q -0 $killallname");
91: if ($? == 0) {
92: system("killall -q $killallname");
93: print(", killed off extraneous processes");
94: }
95: unlink($pidfile);
96: print("\n");
97: }
98:
99: sub clean_sockets {
100: opendir(SOCKETS,"/home/httpd/sockets/");
101: my $perlvarref=&LONCAPA::Configuration::read_conf();
102: return if (ref($perlvarref) ne 'HASH');
103: while (my $fname=readdir(SOCKETS)) {
104: next if (-d $fname
105: || $fname=~/(mysqlsock|maximasock|\Q$perlvarref->{'lonSockDir'}\E)/);
106: unlink("/home/httpd/sockets/$fname");
107: }
108: }
109:
110: if (($command eq "restart") || ($command eq 'stop') ||
111: ($command eq 'start') || ($command eq "status")) {
112: my $iptables = &LONCAPA::Firewall::get_pathto_iptables();
113: my @fw_chains = &LONCAPA::Firewall::get_fw_chains($iptables);
114: my $lond_port = &LONCAPA::Firewall::get_lond_port();
115: my %iphost;
116: if ($command eq 'restart') {
117: print 'Restarting LON-CAPA'."\n";
118: print 'Ending LON-CAPA client and daemon processes'."\n";
119: foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima','lonr') {
120: my $killallname=$daemon;
121: if ($daemon eq 'lonc') { $killallname='loncnew'; }
122: &stop_daemon($daemon,$killallname);
123: }
124: %iphost = &Apache::lonnet::get_iphost('',1);
125: my $firewall_result =
126: &LONCAPA::Firewall::firewall_close_port($iptables,\@fw_chains,
127: $lond_port,\%iphost,[$lond_port]);
128: if ($firewall_result) {
129: print "$firewall_result\n";
130: }
131: $firewall_result =
132: &LONCAPA::Firewall::firewall_open_port($iptables,\@fw_chains,
133: $lond_port, \%iphost,[$lond_port]);
134: if (($firewall_result eq 'ok') || ($firewall_result eq 'inactive firewall')) {
135: if ($firewall_result eq 'inactive firewall') {
136: print "WARNING: iptables firewall is currently inactive\n";
137: }
138: } elsif ($firewall_result) {
139: print "$firewall_result\n";
140: }
141: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
142: "\n";
143: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
144: } elsif ($command eq 'stop') {
145: print 'Stopping LON-CAPA'."\n";
146: foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima','lonr') {
147: my $killallname=$daemon;
148: if ($daemon eq 'lonc') { $killallname='loncnew'; }
149: &stop_daemon($daemon,$killallname);
150: }
151: my $firewall_result =
152: &LONCAPA::Firewall::firewall_close_port($iptables,\@fw_chains,$lond_port,\%iphost,[$lond_port]);
153: if ($firewall_result) {
154: print "$firewall_result\n";
155: }
156: &clean_sockets();
157: } elsif ($command eq "start") {
158: %iphost = &Apache::lonnet::get_iphost('',1);
159: my $firewall_result =
160: &LONCAPA::Firewall::firewall_open_port($iptables,\@fw_chains,$lond_port,\%iphost,[$lond_port]);
161: if (($firewall_result eq 'ok') || ($firewall_result eq 'inactive firewall')) {
162: if ($firewall_result eq 'inactive firewall') {
163: print "WARNING: iptables firewall is currently inactive\n";
164: }
165: print 'Starting LON-CAPA'."\n";
166: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
167: "\n";
168: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
169: } else {
170: print "Not starting LON-CAPA\n";
171: if ($firewall_result eq 'port number unknown') {
172: print "Could not check for status of LON-CAPA port in running firewall - port number unknown. \n";
173: } elsif ($firewall_result) {
174: print "$firewall_result\n";
175: }
176: }
177: } elsif ($command eq "status") {
178: %iphost = &Apache::lonnet::get_iphost();
179: my $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
180: if ($response=~/No such file or directory/) {
181: print 'LON-CAPA is not running.'."\n";
182: } else {
183: print 'LON-CAPA is running.'."\n";
184: system("su www -c '/home/httpd/perl/loncron --justcheckconnections'");
185: }
186: if (! &LONCAPA::Firewall::firewall_is_active()) {
187: print 'The iptables firewall is not active'."\n";
188: }
189: if ($lond_port) {
190: my $londopen;
191: foreach my $fw_chain (@fw_chains) {
192: my $numopen = &LONCAPA::Firewall::firewall_is_port_open($iptables,$fw_chain,$lond_port,$lond_port,\%iphost);
193: $londopen += $numopen;
194: }
195: if ($londopen) {
196: print "The LON-CAPA port ($lond_port) is open in firewall.\n";
197: } elsif (&LONCAPA::Firewall::firewall_is_active) {
198: print "The LON-CAPA port ($lond_port) is NOT open in running firewall!\n";
199: }
200: } else {
201: if (&LONCAPA::Firewall::firewall_is_active()) {
202: print "Could not check for status of LON-CAPA port in running firewall - port number unknown.\n";
203: } else {
204: print "LON-CAPA port number is unknown, and firewall is not running.\n";
205: }
206: }
207: }
208: } elsif ($command eq "reload") {
209: print 'Reload LON-CAPA config files'."\n";
210: system("su www -c '/home/httpd/perl/loncron --justreload'");
211: } else {
212: print "You need to specify one of reload|restart|stop|start|status on the command line.\n";
213: }
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