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Diff for /loncom/init.d/loncontrol between versions 1.1 and 1.29

version 1.1, 2000/10/26 01:24:23 version 1.29, 2007/04/03 00:47:28
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   #
   # $Id$
   #
   # The LearningOnline Network with CAPA
   #
   # 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
   #
   # http://www.lon-capa.org/
   #
   # Startup script for the LON-CAPA network processes
   #
   
   # chkconfig: 345 95 5
   # description: LON-CAPA is a "network of knowledge".  It is used to \
   # distribute knowledge resources and instructional management.
   # processnames: lonc, lond, lonsql, lonmaxima
   # pidfiles: /home/httpd/perl/logs/lon*.pid
   # config: /etc/httpd/conf/loncapa.conf
   # config: /home/httpd/lonTabs/hosts.tab
   # config: /home/httpd/lonTabs/spare.tab
   
 $command=$ARGV[0]; $command=~s/[^a-z]//g;  $command=$ARGV[0]; $command=~s/[^a-z]//g;
   
 # ($euid,$egid,$uid,$gid)=($>,$),$<,$();  
 $ENV{'PATH'}="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin";  $ENV{'PATH'}="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin";
 $ENV{'BASH_ENV'}="";  $ENV{'BASH_ENV'}="";
   
 open (IN, "</etc/passwd");  { # Firewall variable scoping
 @lines=<IN>;      # Firewall code is based on the code in FC2 /etc/init.d/ntpd
 close IN;      my $fw_chain = 'RH-Firewall-1-INPUT';
 for $l (@lines) {      my $iptables = '/sbin/iptables';
     chop $l;      if (! -e $iptables) {
     @F=split(/\:/,$l);   $iptables = '/usr/sbin/iptables';
     if ($F[0] eq 'www') {$wwwid=$F[2];}   if (! -e $iptables) {
 }      print("Unable to find iptables command\n");
 if ($wwwid!=$<) {   }
     die("User ID mismatch.  This program must be run as user 'www'\n");      }
 }      my $lond_port = 5663;
       my $lonhttpd_port = 8080;
 if (($command eq "restart") or ($command eq "reload")) {  
     print "Restarting LON-CAPA\n";  sub firewall_open_port {
     ($<,$>)=($>,$<);      return if (! &firewall_is_active);
     print "Ending LON-CAPA client and daemon processes\n";      if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { return; }
     print `/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\``;      # iptables is running with our chain
     print "Starting LON-CAPA client and daemon processes (please be patient)\n";      #
     system("/home/httpd/perl/loncron");      # We could restrict the servers allowed to attempt to communicate
     ($<,$>)=($>,$<);      # here, but the logistics of updating the /home/httpd/lonTabs/host.tab
     print "Restarting web server\n";      # file are likely to be a problem
     print `/etc/rc.d/init.d/httpd restart`;      foreach my $port ($lond_port,$lonhttpd_port) {
 }          print "Opening firewall access on port $port.\n";
 elsif ($command eq "stop") {  
     print "Stopping LON-CAPA\n";          my $firewall_command = 
     ($<,$>)=($>,$<);              "$iptables -I $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
     print `/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\``;          system($firewall_command);
     ($<,$>)=($>,$<);          my $return_status = $?>>8;
     print "Stopping web server\n";          if ($return_status == 1) {
     print `/etc/rc.d/init.d/httpd stop`;              # Error
 }              print "Error opening port.\n";
 elsif ($command eq "start") {          } elsif ($return_status == 2) {
     print "Starting LON-CAPA\n";              # Bad command
     print "Starting LON-CAPA client and daemon processes (please be patient)\n";               print "Bad command error opening port.  Command was\n".
     ($<,$>)=($>,$<);                  "  ".$firewall_command."\n";
     system("/home/httpd/perl/loncron");          }
     ($<,$>)=($>,$<);      }
     print "Starting web server\n";      
     print `/etc/rc.d/init.d/httpd start`;  
 }  }
 elsif ($command eq "status") {  
   sub firewall_is_port_open {
       # returns 1 if the firewall port is open, 0 if not.
       #
       # check if firewall is active or installed
       return if (! &firewall_is_active);
       if (`$iptables -L -n 2>/dev/null | grep "tcp dpt:$port"`) { 
           return 1;
       } else {
           return 0;
       }
   }
   
   sub firewall_is_active {
       if (-e '/proc/net/ip_tables_names') {
           return 1;
       } else {
           return 0;
       }
   }
   
   sub firewall_close_port {
       return if (! &firewall_is_active);
       foreach my $port ($lond_port,$lonhttpd_port) {
           print "Closing firewall access on port $port.\n";
           my $firewall_command = 
               "$iptables -D $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
           system($firewall_command);
           my $return_status = $?>>8;
           if ($return_status == 1) {
               # Error
               print "Error closing port.\n";
           } elsif ($return_status == 2) {
               # Bad command
               print "Bad command error closing port.  Command was\n".
                   "  ".$firewall_command."\n";
           }
       }
   }
   
   } # End firewall variable scope
   
   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;
    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");
   }
   
   
   if ($command eq "restart") {
       print 'Restarting LON-CAPA'."\n";
       print 'Ending LON-CAPA client and daemon processes'."\n";
       foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached','lonmaxima') {
    my $killallname=$daemon;
    if ($daemon eq 'lonc') { $killallname='loncnew'; }
    &stop_daemon($daemon,$killallname);
       }
       print 'Starting LON-CAPA client and daemon processes (please be patient)'.
    "\n";
       system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
   } elsif ($command eq "stop") {
       print 'Stopping LON-CAPA'."\n";
       foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached','lonmaxima') {
    my $killallname=$daemon;
    if ($daemon eq 'lonc') { $killallname='loncnew'; }
    &stop_daemon($daemon,$killallname);
       }
       &firewall_close_port();
   } elsif ($command eq "start") {
       &firewall_open_port();
       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'");
   } elsif ($command eq "reload") {
       print 'Reload LON-CAPA config files'."\n";
       system("su www -c '/home/httpd/perl/loncron --justreload'");
   } elsif ($command eq "status") {
     $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;      $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
     if ($response=~/No such file or directory/) {      if ($response=~/No such file or directory/) {
  print "LON-CAPA is not running.\n";   print 'LON-CAPA is not running.'."\n";
       } else {
    print 'LON-CAPA is running.'."\n";
    system("su www -c '/home/httpd/perl/loncron --justcheckconnections'");
     }      }
     else {      if (! &firewall_is_active) {
  print "LON-CAPA is running.\n";          print 'The iptables firewall is not active'."\n";
     }      }
 }      if (&firewall_is_port_open()) {
 else {          print 'The LON-CAPA port is open in firewall.'."\n";
     print "You need to specify restart|stop|start on the command line argument.\n";      } elsif (&firewall_is_active) {
           print 'The LON-CAPA port is NOT open in running firewall!'."\n";
       }
   } else {
       print 'You need to specify one of restart|stop|start|status on the command line.'."\n";
 }  }
Removed from v.1.1  
changed lines
  Added in v.1.29

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