1: #!/usr/bin/perl
2: #
3: # $Id: loncontrol,v 1.45 2018/08/07 17:12:17 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: if ($killallname eq 'loncnew') {
97: &clean_nossl_loncpids();
98: }
99: print("\n");
100: }
101:
102: sub clean_sockets {
103: opendir(SOCKETS,"/home/httpd/sockets/");
104: my $perlvarref=&LONCAPA::Configuration::read_conf();
105: return if (ref($perlvarref) ne 'HASH');
106: while (my $fname=readdir(SOCKETS)) {
107: next if (-d $fname
108: || $fname=~/(mysqlsock|maximasock|\Q$perlvarref->{'lonSockDir'}\E)/);
109: unlink("/home/httpd/sockets/$fname");
110: }
111: }
112:
113: sub clean_nossl_loncpids {
114: my $childpiddir = '/home/httpd/perl/logs/loncpids';
115: my $nossldir = '/home/httpd/sockets/nosslverify';
116: foreach my $dir ($childpiddir,$nossldir) {
117: if (-d $dir) {
118: if (opendir(my $dh,$dir)) {
119: while (my $fname=readdir($dh)) {
120: next if ($fname =~ /^\./);
121: unlink("$dir/$fname");
122: }
123: closedir($dh);
124: }
125: }
126: }
127: }
128:
129: if (($command eq "restart") || ($command eq 'stop') ||
130: ($command eq 'start') || ($command eq "status")) {
131: my $iptables = &LONCAPA::Firewall::get_pathto_iptables();
132: my @fw_chains = &LONCAPA::Firewall::get_fw_chains($iptables);
133: my $lond_port = &LONCAPA::Firewall::get_lond_port();
134: my %iphost;
135: if ($command eq 'restart') {
136: print 'Restarting LON-CAPA'."\n";
137: print 'Ending LON-CAPA client and daemon processes'."\n";
138: foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima','lonr') {
139: my $killallname=$daemon;
140: if ($daemon eq 'lonc') { $killallname='loncnew'; }
141: &stop_daemon($daemon,$killallname);
142: }
143: %iphost = &Apache::lonnet::get_iphost('',1);
144: my $firewall_result =
145: &LONCAPA::Firewall::firewall_close_port($iptables,\@fw_chains,
146: $lond_port,\%iphost,[$lond_port]);
147: if ($firewall_result) {
148: print "$firewall_result\n";
149: }
150: $firewall_result =
151: &LONCAPA::Firewall::firewall_open_port($iptables,\@fw_chains,
152: $lond_port, \%iphost,[$lond_port]);
153: if (($firewall_result eq 'ok') || ($firewall_result eq 'inactive firewall')) {
154: if ($firewall_result eq 'inactive firewall') {
155: print "WARNING: iptables firewall is currently inactive\n";
156: }
157: } elsif ($firewall_result) {
158: print "$firewall_result\n";
159: }
160: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
161: "\n";
162: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
163: } elsif ($command eq 'stop') {
164: print 'Stopping LON-CAPA'."\n";
165: foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima','lonr') {
166: my $killallname=$daemon;
167: if ($daemon eq 'lonc') { $killallname='loncnew'; }
168: &stop_daemon($daemon,$killallname);
169: }
170: my $firewall_result =
171: &LONCAPA::Firewall::firewall_close_port($iptables,\@fw_chains,$lond_port,\%iphost,[$lond_port]);
172: if ($firewall_result) {
173: print "$firewall_result\n";
174: }
175: &clean_sockets();
176: } elsif ($command eq "start") {
177: %iphost = &Apache::lonnet::get_iphost('',1);
178: my $firewall_result =
179: &LONCAPA::Firewall::firewall_open_port($iptables,\@fw_chains,$lond_port,\%iphost,[$lond_port]);
180: if (($firewall_result eq 'ok') || ($firewall_result eq 'inactive firewall')) {
181: if ($firewall_result eq 'inactive firewall') {
182: print "WARNING: iptables firewall is currently inactive\n";
183: }
184: print 'Starting LON-CAPA'."\n";
185: print 'Starting LON-CAPA client and daemon processes (please be patient)'.
186: "\n";
187: system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
188: } else {
189: print "Not starting LON-CAPA\n";
190: if ($firewall_result eq 'port number unknown') {
191: print "Could not check for status of LON-CAPA port in running firewall - port number unknown. \n";
192: } elsif ($firewall_result) {
193: print "$firewall_result\n";
194: }
195: }
196: } elsif ($command eq "status") {
197: %iphost = &Apache::lonnet::get_iphost();
198: my $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
199: if ($response=~/No such file or directory/) {
200: print 'LON-CAPA is not running.'."\n";
201: } else {
202: print 'LON-CAPA is running.'."\n";
203: system("su www -c '/home/httpd/perl/loncron --justcheckconnections'");
204: }
205: if (! &LONCAPA::Firewall::firewall_is_active()) {
206: print 'The iptables firewall is not active'."\n";
207: }
208: if ($lond_port) {
209: my $londopen;
210: foreach my $fw_chain (@fw_chains) {
211: my $numopen = &LONCAPA::Firewall::firewall_is_port_open($iptables,$fw_chain,$lond_port,$lond_port,\%iphost);
212: $londopen += $numopen;
213: }
214: if ($londopen) {
215: print "The LON-CAPA port ($lond_port) is open in firewall.\n";
216: } elsif (&LONCAPA::Firewall::firewall_is_active) {
217: print "The LON-CAPA port ($lond_port) is NOT open in running firewall!\n";
218: }
219: } else {
220: if (&LONCAPA::Firewall::firewall_is_active()) {
221: print "Could not check for status of LON-CAPA port in running firewall - port number unknown.\n";
222: } else {
223: print "LON-CAPA port number is unknown, and firewall is not running.\n";
224: }
225: }
226: }
227: } elsif ($command eq "reload") {
228: print 'Reload LON-CAPA config files'."\n";
229: system("su www -c '/home/httpd/perl/loncron --justreload'");
230: } else {
231: print "You need to specify one of reload|restart|stop|start|status on the command line.\n";
232: }
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