--- loncom/init.d/loncontrol	2001/10/02 12:51:09	1.6
+++ loncom/init.d/loncontrol	2009/07/06 00:07:15	1.38
@@ -1,56 +1,187 @@
 #!/usr/bin/perl
 #
+# $Id: loncontrol,v 1.38 2009/07/06 00:07:15 raeburn Exp $
+#
 # The LearningOnline Network with CAPA
 #
-# Startup script for the LON-CAPA network processes
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
 #
-# YEAR=2000
-# 10/25 Scott Harrison
-# YEAR=2001
-# 10/2 Scott Harrison
+# http://www.lon-capa.org/
 #
+# Startup script for the LON-CAPA network processes
+#
+
 # chkconfig: 345 95 5
-# description: LON-CAPA is an knowledge network server.  It is used to
+# description: LON-CAPA is a "network of knowledge".  It is used to \
 # distribute knowledge resources and instructional management.
-# processnames: lonc, lond, lonsql
+# processnames: lonc, lond, lonsql, lonmaxima, lonr
 # pidfiles: /home/httpd/perl/logs/lon*.pid
-# config: /etc/httpd/conf/access.conf
+# config: /etc/httpd/conf/loncapa.conf
 # config: /home/httpd/lonTabs/hosts.tab
 # config: /home/httpd/lonTabs/spare.tab
+# SuSE chkconfig/insserv info
+### BEGIN INIT INFO
+# Provides:       loncapa
+# Required-Start: mysql apache2 $network $remote_fs
+# Required-Stop:
+# Default-Start:  3 4 5
+# Default-Stop:
+# Description:    Starts the LON-CAPA services
+### END INIT INFO
 
-$command=$ARGV[0]; $command=~s/[^a-z]//g;
+use strict;
+use lib '/home/httpd/lib/perl/';
+use LONCAPA::Configuration;
+use LONCAPA::Firewall;
+use Apache::lonnet;
+
+my $command=$ARGV[0]; $command=~s/[^a-z]//g;
 
 $ENV{'PATH'}="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin";
 $ENV{'BASH_ENV'}="";
 
-if (($command eq "restart") or ($command eq "reload")) {
+sub stop_daemon {
+    my ($daemon,$killallname)=@_;
+    my $pidfile="/home/httpd/perl/logs/$daemon.pid";
+    
+    printf("%-15s ",$daemon);
+    if (-e $pidfile) {
+	open(PIDFILE,$pidfile);
+	my $daemonpid=<PIDFILE>;
+	chomp($daemonpid);
+	kill TERM => $daemonpid;
+	my $count=0;
+	while ($count++ < 5 && kill(0 => $daemonpid)) {
+	    sleep 1;
+	}
+	if (kill 0 => $daemonpid) {
+	    kill KILL => $daemonpid;
+	    sleep 1;
+	    if (kill 0 => $daemonpid) {
+		print("failed to kill");
+	    } else {
+		print("killed");
+	    }
+	} else {
+	    print("stopped");
+	}
+    } else {
+	print("not running");
+    }
+    system("killall -q -0 $killallname");
+    if ($? == 0) {
+	system("killall -q $killallname");
+	print(", killed off extraneous processes");
+    }
+    unlink($pidfile);
+    print("\n");
+}
+
+sub clean_sockets {
+    opendir(SOCKETS,"/home/httpd/sockets/");
+    my $perlvarref=&LONCAPA::Configuration::read_conf();
+    return if (ref($perlvarref) ne 'HASH');
+    while (my $fname=readdir(SOCKETS)) {
+	next if (-d $fname
+		 || $fname=~/(mysqlsock|maximasock|\Q$perlvarref->{'lonSockDir'}\E)/);
+	unlink("/home/httpd/sockets/$fname");
+    }
+}
+
+if ($command eq "restart") {
     print 'Restarting LON-CAPA'."\n";
     print 'Ending LON-CAPA client and daemon processes'."\n";
-    print `su -c '/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\`' www`;
+    foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima','lonr') {
+	my $killallname=$daemon;
+	if ($daemon eq 'lonc') { $killallname='loncnew'; }
+	&stop_daemon($daemon,$killallname);
+    }
     print 'Starting LON-CAPA client and daemon processes (please be patient)'.
 	"\n";
-    system("su -c '/home/httpd/perl/loncron' www");
-}
-elsif ($command eq "stop") {
-    print 'Stopping LON-CAPA'."\n";
-    print `su -c '/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\`' www`;
-}
-elsif ($command eq "start") {
-    print 'Starting LON-CAPA'."\n";
-    print 'Starting LON-CAPA client and daemon processes (please be patient)'.
-	"\n"; 
-    system("su -c '/home/httpd/perl/loncron' www");
-}
-elsif ($command eq "status") {
-    $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
-    if ($response=~/No such file or directory/) {
-	print 'LON-CAPA is not running.'."\n";
-    }
-    else {
-	print 'LON-CAPA is running.'."\n";
+    system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
+} elsif (($command eq "stop") || ($command eq 'start') || ($command eq 'status')) {
+    my $iptables = &LONCAPA::Firewall::get_pathto_iptables();
+    my $fw_chain = &LONCAPA::Firewall::get_fw_chain($iptables);
+    my $lond_port = &LONCAPA::Firewall::get_lond_port();
+    my %iphost = &Apache::lonnet::get_iphost();
+    if ($command eq 'stop') {
+        print 'Stopping LON-CAPA'."\n";
+        foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima','lonr') {
+	    my $killallname=$daemon;
+	    if ($daemon eq 'lonc') { $killallname='loncnew'; }
+	    &stop_daemon($daemon,$killallname);
+        }
+        my $firewall_result = 
+            &LONCAPA::Firewall::firewall_close_port($iptables,$fw_chain,$lond_port,[$lond_port]);
+        if ($firewall_result) {
+            print "$firewall_result\n";
+        }
+        &clean_sockets();
+    } elsif ($command eq "start") {
+        my $firewall_result = 
+            &LONCAPA::Firewall::firewall_open_port($iptables,$fw_chain,$lond_port,\%iphost,[$lond_port]);
+        if (($firewall_result eq 'ok') || ($firewall_result eq 'inactive firewall')) {
+            if ($firewall_result eq 'inactive firewall') {
+                print "WARNING: iptables firewall is currently inactive\n";
+            }
+            print 'Starting LON-CAPA'."\n";
+            print 'Starting LON-CAPA client and daemon processes (please be patient)'.
+	          "\n";
+            system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
+        } else {
+            print "Not starting LON-CAPA\n";
+            if ($firewall_result eq 'port number unknown') {
+                print "Could not check for status of LON-CAPA port in running firewall - port number unknown.  \n";
+            } elsif ($firewall_result) {
+                print "$firewall_result\n";
+            }
+        }
+    } elsif ($command eq "status") {
+        my $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
+        if ($response=~/No such file or directory/) {
+	    print 'LON-CAPA is not running.'."\n";
+        } else {
+	    print 'LON-CAPA is running.'."\n";
+	    system("su www -c '/home/httpd/perl/loncron --justcheckconnections'");
+        }
+        if (! &LONCAPA::Firewall::firewall_is_active()) {
+            print 'The iptables firewall is not active'."\n";
+        }
+        if ($lond_port) {
+            if (&LONCAPA::Firewall::firewall_is_port_open($iptables,$fw_chain,$lond_port,$lond_port,\%iphost)) {
+                print "The LON-CAPA port ($lond_port) is open in firewall.\n";
+            } elsif (&LONCAPA::Firewall::firewall_is_active) {
+                print "The LON-CAPA port ($lond_port) is NOT open in running firewall!\n";
+            }
+        } else {
+            if (&LONCAPA::Firewall::firewall_is_active()) {
+                print "Could not check for status of LON-CAPA port in running firewall - port number unknown.\n";
+            } else {
+                print "LON-CAPA port number is unknown, and firewall is not running.\n";
+            }
+        }
     }
-}
-else {
-    print 'You need to specify restart|stop|start|status on the command line'.
-	' argument.'."\n";
+} elsif ($command eq "reload") {
+    print 'Reload LON-CAPA config files'."\n";
+    system("su www -c '/home/httpd/perl/loncron --justreload'");
+} else {
+    print "You need to specify one of reload|restart|stop|start|status on the command line.\n";
 }