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Diff for /loncom/init.d/loncontrol between versions 1.1 and 1.20

version 1.1, 2000/10/26 01:24:23 version 1.20, 2004/12/02 18:49:55
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   #
   # The LearningOnline Network with CAPA
   #
   # Startup script for the LON-CAPA network processes
   #
   # YEAR=2000
   # YEAR=2001
   # YEAR=2002
   
   # 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
   # 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;      my $port = 5663;
     @F=split(/\:/,$l);  
     if ($F[0] eq 'www') {$wwwid=$F[2];}  sub firewall_open_port {
 }      return if (! &firewall_is_active);
 if ($wwwid!=$<) {      print "Opening firewall access on port $port\n";
     die("User ID mismatch.  This program must be run as user 'www'\n");      if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { return; }
 }      # iptables is running with our chain
       #
 if (($command eq "restart") or ($command eq "reload")) {      # We could restrict the servers allowed to attempt to communicate
     print "Restarting LON-CAPA\n";      # here, but the logistics of updating the /home/httpd/lonTabs/host.tab
     ($<,$>)=($>,$<);      # file are likely to be a problem
     print "Ending LON-CAPA client and daemon processes\n";      my $firewall_command = 
     print `/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\``;          "$iptables -I $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT";
     print "Starting LON-CAPA client and daemon processes (please be patient)\n";      system($firewall_command);
     system("/home/httpd/perl/loncron");      my $return_status = $?>>8;
     ($<,$>)=($>,$<);      if ($return_status == 1) {
     print "Restarting web server\n";          # Error
     print `/etc/rc.d/init.d/httpd restart`;          print "Error opening port.\n";
 }      } elsif ($return_status == 2) {
 elsif ($command eq "stop") {          # Bad command
     print "Stopping LON-CAPA\n";          print "Bad command error opening port.  Command was\n".
     ($<,$>)=($>,$<);              "  ".$firewall_command."\n";
     print `/bin/kill \`/bin/cat /home/httpd/perl/logs/*.pid\``;      }
     ($<,$>)=($>,$<);  }
     print "Stopping web server\n";  
     print `/etc/rc.d/init.d/httpd stop`;  sub firewall_is_port_open {
 }      # returns 1 if the firewall port is open, 0 if not.
 elsif ($command eq "start") {      #
     print "Starting LON-CAPA\n";      # check if firewall is active or installed
     print "Starting LON-CAPA client and daemon processes (please be patient)\n";       return if (! &firewall_is_active);
     ($<,$>)=($>,$<);      if (`$iptables -L -n 2>/dev/null | grep "tcp dpt:$port"`) { 
     system("/home/httpd/perl/loncron");          return 1;
     ($<,$>)=($>,$<);      } else {
     print "Starting web server\n";          return 0;
     print `/etc/rc.d/init.d/httpd start`;      }
   }
   
   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);
       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("%-10s ",$daemon);
       if (-e $pidfile) {
    open(PIDFILE,$pidfile);
    my $daemonpid=<PIDFILE>;
    chomp($daemonpid);
    kill TERM => $daemonpid;
    sleep 2;
    if (kill 0 => $daemonpid) {
       kill KILL => $daemonpid;
       sleep 2;
       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 $killallname");
    print(", killed off extraneous processes");
       }
       print("\n");
 }  }
 elsif ($command eq "status") {  
   
   if (($command eq "restartold") or ($command eq "reloadold")) {
       print 'Restarting LON-CAPA'."\n";
       print 'Ending LON-CAPA client and daemon processes'."\n";
       foreach my $daemon ('lonsql','lond','lonc','lonhttpd') {
    &stop_daemon($daemon,$daemon);
       }
       print 'Starting LON-CAPA client and daemon processes (please be patient)'.
    "\n";
       system("su www -c '/home/httpd/perl/loncron --oldlonc --justcheckdaemons'");
   } elsif (($command eq "restart") or ($command eq "reload")) {
       print 'Restarting LON-CAPA'."\n";
       print 'Ending LON-CAPA client and daemon processes'."\n";
       foreach my $daemon ('lonsql','lond','lonc','lonhttpd') {
    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') {
    my $killallname=$daemon;
    if ($daemon eq 'lonc') { $killallname='loncnew'; }
    &stop_daemon($daemon,$killallname);
       }
       &firewall_close_port();
   } elsif ($command eq "startold") {
       &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 --oldlonc --justcheckdaemons'");
   } 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 "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.1.20

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