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Diff for /loncom/init.d/loncontrol between versions 1.2 and 1.34.2.1

version 1.2, 2000/10/26 01:37:36 version 1.34.2.1, 2010/01/13 19:26:54
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  # Startup script for the LON-CAPA network processes
 # Scott Harrison 10/25/2000  
 #  #
 # chkconfig: 345 85 15  
 # description: Apache is a World Wide Web server.  It is used to serve \  # chkconfig: 345 95 5
 #              HTML files and CGI.  # description: LON-CAPA is a "network of knowledge".  It is used to \
 # processnames: lonc, lond, lonsql  # distribute knowledge resources and instructional management.
   # processnames: lonc, lond, lonsql, lonmaxima
 # pidfiles: /home/httpd/perl/logs/lon*.pid  # 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/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
   
 open (IN, "</etc/passwd");  use strict;
 @lines=<IN>;  use lib '/home/httpd/lib/perl/';
 close IN;  use LONCAPA::Configuration;
 for $l (@lines) {  
     chop $l;  
     @F=split(/\:/,$l);  
     if ($F[0] eq 'www') {$wwwid=$F[2];}  
 }  
 $<=$wwwid;  
   
 open (OUT, ">junk");  
 print OUT "stuff";  
 close OUT;  
 __END__  
   
 $command=$ARGV[0]; $command=~s/[^a-z]//g;  my $command=$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 $suse_config = "/etc/sysconfig/SuSEfirewall2";
       if (-e $suse_config) {
 if (($command eq "restart") or ($command eq "reload")) {          $fw_chain = 'input_ext';
     print "Restarting LON-CAPA\n";      } else {
     ($<,$>)=($>,$<);          if (!-e '/etc/sysconfig/iptables') {
     print "Ending LON-CAPA client and daemon processes\n";              print("Unable to find iptables file containing static definitions\n");
     print `/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\``;          }
     print "Starting LON-CAPA client and daemon processes (please be patient)\n";      }
     system("/home/httpd/perl/loncron");      if (-e $iptables) {
     ($<,$>)=($>,$<);          my $count = `$iptables -L -n 2>/dev/null |grep $fw_chain |wc -l`;
     print "Restarting web server\n";          chomp($count);
     print `/etc/rc.d/init.d/httpd restart`;          if (!$count) {
 }              $fw_chain ='INPUT';
 elsif ($command eq "stop") {          }
     print "Stopping LON-CAPA\n";      }
     ($<,$>)=($>,$<);      my $lond_port = &get_lond_port();
     print `/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\``;      if (!$lond_port) {
     ($<,$>)=($>,$<);          print("Unable to determine lond port number from LON-CAPA configuration.\n");
     print "Stopping web server\n";      }
     print `/etc/rc.d/init.d/httpd stop`;  
 }  sub firewall_open_port {
 elsif ($command eq "start") {      return 'inactive firewall' if (! &firewall_is_active);
     print "Starting LON-CAPA\n";      return 'port number unknown' if !$lond_port;
     print "Starting LON-CAPA client and daemon processes (please be patient)\n";       my @opened;
     ($<,$>)=($>,$<);      my $suse_config = "/etc/sysconfig/SuSEfirewall2";
     system("/home/httpd/perl/loncron");      if (-e $suse_config) {
     ($<,$>)=($>,$<);          if (open(my $fh,"<$suse_config")) {
     print "Starting web server\n";              while(<$fh>) {
     print `/etc/rc.d/init.d/httpd start`;                  chomp();
                   if (/^FW_SERVICES_EXT_TCP="([^"]+)"\s*$/) {
                       my $portstr = $1;
                       my @suseports = split(/\s+/,$portstr);
                       foreach my $port ($lond_port) {
                           if (grep/^\Q$port\E$/,@suseports) {
                               push(@opened,$port);
                           }
                       }
                   }
               }
           }
       } else {
           if (! `$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: '.$port."\n";  
           }
       }
       return 'ok';
 }  }
 elsif ($command eq "status") {  
     $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`;  sub firewall_is_port_open {
     if ($response=~/No such file or directory/) {      my ($port) = @_;
  print "LON-CAPA is not running.\n";      # returns 1 if the firewall port is open, 0 if not.
       #
       # check if firewall is active or installed
       return if (! &firewall_is_active);
       if (`$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;
     }      }
     else {  }
  print "LON-CAPA is running.\n";  
   sub firewall_close_port {
       return 'inactive firewall' if (! &firewall_is_active);
       return 'port number unknown' if !$lond_port;
       my $suse_config = "/etc/sysconfig/SuSEfirewall2";
       return if (-e $suse_config);
       foreach my $port ($lond_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";
           } 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
   
   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/$fname");
     }      }
 }  }
 else {  
     print "You need to specify restart|stop|start on the command line argument.\n";  if ($command eq "restart") {
       print 'Restarting LON-CAPA'."\n";
       print 'Ending LON-CAPA client and daemon processes'."\n";
       foreach my $daemon ('lonsql','lond','lonc','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','lonmemcached','lonmaxima') {
    my $killallname=$daemon;
    if ($daemon eq 'lonc') { $killallname='loncnew'; }
    &stop_daemon($daemon,$killallname);
       }
       my $firewall_result = &firewall_close_port();
       if ($firewall_result) {
           print "$firewall_result\n";
       }
       &clean_sockets();
   } elsif ($command eq "start") {
       my $firewall_result = &firewall_open_port();
       if (($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 "reload") {
       print 'Reload LON-CAPA config files'."\n";
       system("su www -c '/home/httpd/perl/loncron --justreload'");
   } elsif ($command eq "status") {
       my $lond_port = &get_lond_port();
       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 (! &firewall_is_active) {
           print 'The iptables firewall is not active'."\n";
       }
       my $lond_port = &get_lond_port();
       if ($lond_port) {
           if (&firewall_is_port_open($lond_port)) {
               print "The LON-CAPA port ($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 {
       print "You need to specify one of restart|stop|start|status on the command line.\n";
 }  }
Removed from v.1.2  
changed lines
  Added in v.1.34.2.1

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