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Diff for /loncom/init.d/loncontrol between versions 1.20 and 1.34

version 1.20, 2004/12/02 18:49:55 version 1.34, 2009/02/02 17:06:55
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
 #  #
   # $Id$
   #
 # The LearningOnline Network with CAPA  # 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  # Startup script for the LON-CAPA network processes
 #  #
 # YEAR=2000  
 # YEAR=2001  
 # YEAR=2002  
   
 # chkconfig: 345 95 5  # chkconfig: 345 95 5
 # description: LON-CAPA is a "network of knowledge".  It is used to  # description: LON-CAPA is a "network of knowledge".  It is used to \
 # distribute knowledge resources and instructional management.  # distribute knowledge resources and instructional management.
 # processnames: lonc, lond, lonsql  # processnames: lonc, lond, lonsql, lonmaxima
 # pidfiles: /home/httpd/perl/logs/lon*.pid  # pidfiles: /home/httpd/perl/logs/lon*.pid
 # config: /etc/httpd/conf/loncapa.conf  # config: /etc/httpd/conf/loncapa.conf
 # config: /home/httpd/lonTabs/hosts.tab  # config: /home/httpd/lonTabs/hosts.tab
 # config: /home/httpd/lonTabs/spare.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
   
   use strict;
   use lib '/home/httpd/lib/perl/';
   use LONCAPA::Configuration;
   
 $command=$ARGV[0]; $command=~s/[^a-z]//g;  my $command=$ARGV[0]; $command=~s/[^a-z]//g;
   
 $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'}="";
Line 26  $ENV{'BASH_ENV'}=""; Line 60  $ENV{'BASH_ENV'}="";
     # Firewall code is based on the code in FC2 /etc/init.d/ntpd      # Firewall code is based on the code in FC2 /etc/init.d/ntpd
     my $fw_chain = 'RH-Firewall-1-INPUT';      my $fw_chain = 'RH-Firewall-1-INPUT';
     my $iptables = '/sbin/iptables';      my $iptables = '/sbin/iptables';
     my $port = 5663;      if (! -e $iptables) {
    $iptables = '/usr/sbin/iptables';
    if (!-e $iptables) {
       print("Unable to find iptables command\n");
    }
       }
       my $suse_config = "/etc/sysconfig/SuSEfirewall2";
       if (!-e $suse_config) {
           if (!-e '/etc/sysconfig/iptables') {
               print("Unable to find iptables file containing static definitions\n");
           }
       }
       my $lond_port = &get_lond_port();
       if (!$lond_port) {
           print("Unable to determine lond port number from LON-CAPA configuration.\n");
       }
   
 sub firewall_open_port {  sub firewall_open_port {
     return if (! &firewall_is_active);      return 'inactive firewall' if (! &firewall_is_active);
     print "Opening firewall access on port $port\n";      return 'port number unknown' if !$lond_port;
     if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { return; }      my @opened;
     # iptables is running with our chain      my $suse_config = "/etc/sysconfig/SuSEfirewall2";
     #      if (-e $suse_config) {
     # We could restrict the servers allowed to attempt to communicate          if (open(my $fh,"<$suse_config")) {
     # here, but the logistics of updating the /home/httpd/lonTabs/host.tab              while(<$fh>) {
     # file are likely to be a problem                  chomp();
     my $firewall_command =                   if (/^FW_SERVICES_EXT_TCP="([^"]+)"\s*$/) {
         "$iptables -I $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";                      my $portstr = $1;
     system($firewall_command);                      my @suseports = split(/\s+/,$portstr);
     my $return_status = $?>>8;                      foreach my $port ($lond_port) {
     if ($return_status == 1) {                          if (grep/^\Q$port\E$/,@suseports) {
         # Error                              push(@opened,$port);
         print "Error opening port.\n";                          }
     } elsif ($return_status == 2) {                      }
         # Bad command                  }
         print "Bad command error opening port.  Command was\n".              }
             "  ".$firewall_command."\n";          }
       } else {
           if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { 
               return 'chain error';
           }
           # iptables is running with our chain
           #
           # We could restrict the servers allowed to attempt to communicate
           # here, but the logistics of updating the /home/httpd/lonTabs/host.tab
           # file are likely to be a problem
           foreach my $port ($lond_port) {
               print "Opening firewall access on port $port.\n";
               my $result;
               my $firewall_command = 
                   "$iptables -I $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 opening port.\n";
               } elsif ($return_status == 2) {
                   # Bad command
                   print "Bad command error opening port.  Command was\n".
                         "  ".$firewall_command."\n";
               } elsif ($return_status == 0) {
                   push(@opened,$port);
               }
           }
       }
       foreach my $port ($lond_port) {
           if (!grep(/^\Q$port\E$/,@opened)) {
               return 'Required port not open: '.$port."\n";  
           }
     }      }
       return 'ok';
 }  }
   
 sub firewall_is_port_open {  sub firewall_is_port_open {
       my ($port) = @_;
     # returns 1 if the firewall port is open, 0 if not.      # returns 1 if the firewall port is open, 0 if not.
     #      #
     # check if firewall is active or installed      # check if firewall is active or installed
Line 72  sub firewall_is_active { Line 155  sub firewall_is_active {
 }  }
   
 sub firewall_close_port {  sub firewall_close_port {
     return if (! &firewall_is_active);      return 'inactive firewall' if (! &firewall_is_active);
     print "Closing firewall access on port $port\n";      return 'port number unknown' if !$lond_port;
     my $firewall_command =       my $suse_config = "/etc/sysconfig/SuSEfirewall2";
         "$iptables -D $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";      return if (-e $suse_config);
     system($firewall_command);      foreach my $port ($lond_port) {
     my $return_status = $?>>8;          print "Closing firewall access on port $port\n";
     if ($return_status == 1) {          my $firewall_command = 
         # Error              "$iptables -D $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
         print "Error closing port.\n";          system($firewall_command);
     } elsif ($return_status == 2) {          my $return_status = $?>>8;
         # Bad command          if ($return_status == 1) {
         print "Bad command error closing port.  Command was\n".              # Error
             "  ".$firewall_command."\n";              print "Error closing port.\n";
           } elsif ($return_status == 2) {
               # Bad command
               print "Bad command error closing port.  Command was\n".
                   "  ".$firewall_command."\n";
           } else {
               print "Port closed.\n";
           }
       }
       return;
   }
   
   sub get_lond_port {
       my $perlvarref=&LONCAPA::Configuration::read_conf();
       my $lond_port;
       if (ref($perlvarref) eq 'HASH') {
           if (defined($perlvarref->{'londPort'})) {
               $lond_port = $perlvarref->{'londPort'};
           }
     }      }
       return $lond_port;
 }  }
   
 } # End firewall variable scope  } # End firewall variable scope
Line 94  sub stop_daemon { Line 196  sub stop_daemon {
     my ($daemon,$killallname)=@_;      my ($daemon,$killallname)=@_;
     my $pidfile="/home/httpd/perl/logs/$daemon.pid";      my $pidfile="/home/httpd/perl/logs/$daemon.pid";
           
     printf("%-10s ",$daemon);      printf("%-15s ",$daemon);
     if (-e $pidfile) {      if (-e $pidfile) {
  open(PIDFILE,$pidfile);   open(PIDFILE,$pidfile);
  my $daemonpid=<PIDFILE>;   my $daemonpid=<PIDFILE>;
  chomp($daemonpid);   chomp($daemonpid);
  kill TERM => $daemonpid;   kill TERM => $daemonpid;
  sleep 2;   my $count=0;
    while ($count++ < 5 && kill(0 => $daemonpid)) {
       sleep 1;
    }
  if (kill 0 => $daemonpid) {   if (kill 0 => $daemonpid) {
     kill KILL => $daemonpid;      kill KILL => $daemonpid;
     sleep 2;      sleep 1;
     if (kill 0 => $daemonpid) {      if (kill 0 => $daemonpid) {
  print("failed to kill");   print("failed to kill");
     } else {      } else {
Line 120  sub stop_daemon { Line 225  sub stop_daemon {
  system("killall -q $killallname");   system("killall -q $killallname");
  print(", killed off extraneous processes");   print(", killed off extraneous processes");
     }      }
       unlink($pidfile);
     print("\n");      print("\n");
 }  }
   
   sub clean_sockets {
 if (($command eq "restartold") or ($command eq "reloadold")) {      opendir(SOCKETS,"/home/httpd/sockets/");
     print 'Restarting LON-CAPA'."\n";      my $perlvarref=&LONCAPA::Configuration::read_conf();
     print 'Ending LON-CAPA client and daemon processes'."\n";      return if (ref($perlvarref) ne 'HASH');
     foreach my $daemon ('lonsql','lond','lonc','lonhttpd') {      while (my $fname=readdir(SOCKETS)) {
  &stop_daemon($daemon,$daemon);   next if (-d $fname
    || $fname=~/(mysqlsock|maximasock|\Q$perlvarref->{'lonSockDir'}\E)/);
    unlink("/home/httpd/sockets/$fname");
     }      }
     print 'Starting LON-CAPA client and daemon processes (please be patient)'.  }
  "\n";  
     system("su www -c '/home/httpd/perl/loncron --oldlonc --justcheckdaemons'");  if ($command eq "restart") {
 } elsif (($command eq "restart") or ($command eq "reload")) {  
     print 'Restarting LON-CAPA'."\n";      print 'Restarting LON-CAPA'."\n";
     print 'Ending LON-CAPA client and daemon processes'."\n";      print 'Ending LON-CAPA client and daemon processes'."\n";
     foreach my $daemon ('lonsql','lond','lonc','lonhttpd') {      foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima') {
  my $killallname=$daemon;   my $killallname=$daemon;
  if ($daemon eq 'lonc') { $killallname='loncnew'; }   if ($daemon eq 'lonc') { $killallname='loncnew'; }
  &stop_daemon($daemon,$killallname);   &stop_daemon($daemon,$killallname);
Line 146  if (($command eq "restartold") or ($comm Line 253  if (($command eq "restartold") or ($comm
     system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");      system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");
 } elsif ($command eq "stop") {  } elsif ($command eq "stop") {
     print 'Stopping LON-CAPA'."\n";      print 'Stopping LON-CAPA'."\n";
     foreach my $daemon ('lonsql','lond','lonc','lonhttpd') {      foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima') {
  my $killallname=$daemon;   my $killallname=$daemon;
  if ($daemon eq 'lonc') { $killallname='loncnew'; }   if ($daemon eq 'lonc') { $killallname='loncnew'; }
  &stop_daemon($daemon,$killallname);   &stop_daemon($daemon,$killallname);
     }      }
     &firewall_close_port();      my $firewall_result = &firewall_close_port();
 } elsif ($command eq "startold") {      if ($firewall_result) {
     &firewall_open_port();          print "$firewall_result\n";
     print 'Starting LON-CAPA'."\n";      }
     print 'Starting LON-CAPA client and daemon processes (please be patient)'.      &clean_sockets();
  "\n";   
     system("su www -c '/home/httpd/perl/loncron --oldlonc --justcheckdaemons'");  
 } elsif ($command eq "start") {  } elsif ($command eq "start") {
     &firewall_open_port();      my $firewall_result = &firewall_open_port();
     print 'Starting LON-CAPA'."\n";      if (($firewall_result eq 'ok') || ($firewall_result eq 'inactive firewall')) {
     print 'Starting LON-CAPA client and daemon processes (please be patient)'.          if ($firewall_result eq 'inactive firewall') {
  "\n";               print "WARNING: iptables firewall is currently inactive\n";
     system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'");          }
           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 "reload") {
       print 'Reload LON-CAPA config files'."\n";
       system("su www -c '/home/httpd/perl/loncron --justreload'");
 } elsif ($command eq "status") {  } elsif ($command eq "status") {
     $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;      my $lond_port = &get_lond_port();
       my $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;
     if ($response=~/No such file or directory/) {      if ($response=~/No such file or directory/) {
  print 'LON-CAPA is not running.'."\n";   print 'LON-CAPA is not running.'."\n";
     } else {      } else {
Line 175  if (($command eq "restartold") or ($comm Line 296  if (($command eq "restartold") or ($comm
     if (! &firewall_is_active) {      if (! &firewall_is_active) {
         print 'The iptables firewall is not active'."\n";          print 'The iptables firewall is not active'."\n";
     }      }
     if (&firewall_is_port_open()) {      my $lond_port = &get_lond_port();
         print 'The LON-CAPA port is open in firewall.'."\n";      if ($lond_port) {
     } elsif (&firewall_is_active) {          if (&firewall_is_port_open($lond_port)) {
         print 'The LON-CAPA port is NOT open in running firewall!'."\n";              print "The LON-CAPA port ($lond_port) is open in firewall.\n";
           } elsif (&firewall_is_active) {
               print "The LON-CAPA port ($lond_port) is NOT open in running firewall!\n";
           }
       } else {
           if (&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 {  } else {
     print 'You need to specify one of restart|stop|start|status on the command line.'."\n";      print "You need to specify one of restart|stop|start|status on the command line.\n";
 }  }
Removed from v.1.20  
changed lines
  Added in v.1.34

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