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Diff for /doc/loncapafiles/updatequery.piml between versions 1.8 and 1.56

version 1.8, 2002/05/13 17:56:29 version 1.56, 2007/04/22 16:33:28
Line 1 Line 1
 <!-- updatequery.piml -->  <!-- updatequery.piml -->
 <!-- Scott Harrison -->  
   
 <!-- $Id$ -->  <!-- $Id$ -->
   
Line 48  $|=1; Line 47  $|=1;
 *********************************************  *********************************************
   
 END  END
 sleep(3);  #sleep(3);
 </perlscript>  </perlscript>
 </file>  </file>
 <file>  <file>
 <target dist='default'>/home/httpd/lonUsers2/</target>  <target dist='default'>loncom/hosts.tab</target>
   <perlscript mode='fg'>
   unless (-l "<TARGET />") {
     print(&lt;&lt;END);
   
   ===============================================================================
   Which cluster option would you like to have installed?
   IMPORTANT: to take advantage of the cluster options 1) and 3),
   you must contact lon-capa\@lon-capa.org.
   
   1) PRODUCTION - you want to eventually connect this machine to the
                   LON-CAPA content sharing network. This setting is for
                   schools, colleges, and universities, that currently
                   are running - or in the future will run - courses
   2) STAND-ALONE - you want this machine to run in 'stand-alone' mode and
                    not be connected to other LON-CAPA machines for now
   3) DEVELOPMENT - you want to do software (not content!) development with
                    this workstation and eventually link it with the
                    workstations of other LON-CAPA software developers.
   4) RUNNING YOUR OWN CLUSTER - this machine is not in the standard LON-CAPA
                    clusters and won't be in the future and you want the existing
                    hosts.tab and domain.tab files to be left alone.
                    (This choice is unlikely what you want to select.)
   END
   # Option number 26 will install rawhide_hosts.tab, but
   # the typical user does not want to be part of an intensive
   # machine test cluster.
   
   # get input
   # if valid then process, otherwise loop
   $flag=0;
   while (!$flag) {
     print "ENTER 1, 2, 3, or 4:\n";
     my $choice=&lt;&gt;;
     chomp($choice);
     if ($choice==1) {
       $lonCluster='production'; $flag=1;
     }
     elsif ($choice==2) {
       $lonCluster='standalone'; $flag=1;
     }
     elsif ($choice==3) {
       $lonCluster='development'; $flag=1;
     }
     elsif ($choice==4) {
       $lonCluster='existing'; $flag=1;
       foreach my $file ('hosts.tab','dns_hosts.tab',
                         'domain.tab','dns_domain.tab') {
           if (-e '/home/httpd/lonTabs/'.$file) {
       `cp /home/httpd/lonTabs/$file ../existing_$file`;
           }
           else {
       print &lt;&lt;END;
   There is no existing /home/httpd/lonTabs/$file
   END
               die('');
           }
       }
     }
     elsif ($choice==26) {
       $lonCluster='rawhide'; $flag=1;
     }
   }
   }
   </perlscript>
   </file>
   <file>
   <target dist='default'>/home/httpd/lonTabs/hosts.tab</target>
 <perlscript mode='fg'>  <perlscript mode='fg'>
 $|=1;  $|=1;
   my $domainDescription;
   my $domainTabExtras;
   my $primaryLibServer;
   my @libservers = ();
 unless (-e "<TARGET />") {  unless (-e "<TARGET />") {
   print(&lt;&lt;END);    print(&lt;&lt;END);
            WELCOME TO LON-CAPA!             WELCOME TO LON-CAPA!
   
 If you have questions, please visit http://install.lon-capa.org  If you have questions, please visit http://install.lon-capa.org
 or contact sharrison\@mail.lon-capa.org.  or contact helpdesk\@lon-capa.org.
   
 ===============================================================================  ===============================================================================
 The following 4 values are needed to configure LON-CAPA:  The following 4 values are needed to configure LON-CAPA:
 * Machine Role  * Machine Role
 * LON-CAPA Domain Name  * LON-CAPA Domain Name
 * LON-CAPA Machine ID Name, and  * LON-CAPA Machine ID Name, and
 * System Administration E-mail Address.  * Server Administration E-mail Address.
   ===============================================================================
   
   In addition, a Support E-mail Address can also be included. If
   an address is included then one of the options in the LON-CAPA 
   help menu will be a link to a form that a user will complete to
   request LON-CAPA help.  
   
 END  END
   
 open(OUT,'&gt;/tmp/loncapa_updatequery.out');  open(OUT,'&gt;/tmp/loncapa_updatequery.out');
Line 115  while (!$flag) { Line 192  while (!$flag) {
 }  }
   
 # need to recommend a machine ID name (ipdomain.l.somenumber)  # need to recommend a machine ID name (ipdomain.l.somenumber)
 my $hostname=`hostname`; chomp($hostname);  my $hostname=`hostname -f`; chomp($hostname);
 my $ipdomain='';  my $ipdomain='';
 if ($hostname=~/([^\.]*)\.([^\.]*)$/) {  if ($hostname=~/([^\.]*)\.([^\.]*)$/) {
   $ipdomain=$1;    $ipdomain=$1;
Line 124  if ($hostname=~/([^\.]*)\.([^\.]*)$/) { Line 201  if ($hostname=~/([^\.]*)\.([^\.]*)$/) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
   
 **** Domain ****  **** Domain ****
 [this does NOT need to correspond to internet address domains,  [This does NOT need to correspond to internet address domains.
  examples might be "msu" or "bionet" or "vermontcc"]   Please make this name short AND descriptive of your organization.
    Domain names are close to impossible to change later!!!
    Good examples might be "msu" or "bionet" or "vermontcc".
    Bad examples are "physics" (too general)
      or "michiganstateuniversity" (too long)
      or "msuedu" (internet domain, just make it "msu")
      or "msuphysics" (only if there is a good reason to limit to department
                       - we don't know of one)
      or "mydomain" (what is that?)
    Avoid multiple domains at the same institution, even if it means that you 
    have to actually work together with your colleagues. You can still run
    multiple library servers within the same domain.
    If this domain is eventually going to be part of the main production
    cluster, you MUST contact the LON-CAPA group at MSU (loncapa@loncapa.org)
    to have a domain name assigned, and then use it exactly as given. This is
    also true for test installs that might eventually turn into production setups.
    Stop now if you didn't do so.]
 END  END
   
 # get domain name  # get domain name
Line 145  END Line 238  END
 }  }
   my $choice=&lt;&gt;;    my $choice=&lt;&gt;;
   chomp($choice);    chomp($choice);
     my $bad_domain_flag=0;
     my @bad_domain_names=('res','raw','userfiles','priv','adm','uploaded',
    'editupload');
     foreach my $bad (@bad_domain_names) {
       $bad_domain_flag=1 if $choice eq $bad;
     }
     if ($choice=~/capa/i) {
        $bad_domain_flag=1;
     }
   if ($ipdomain and $choice=~/^\s*$/) {    if ($ipdomain and $choice=~/^\s*$/) {
     $choice=$ipdomain;      $choice=$ipdomain;
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');      open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
Line 152  END Line 254  END
     close(OUT);      close(OUT);
     $lonDefDomain=$choice;      $lonDefDomain=$choice;
     $flag=1;      $flag=1;
   }    } elsif (length($choice)>35) {
   elsif ($choice!~/\_/ and $choice=~/^\w+$/) {      print "Name too long\n";
     } elsif (length($choice)<2) {
       print "Name too short\n";
     } elsif ($bad_domain_flag) {
       print "Invalid input ('$choice' conflicts with LON-CAPA namespace).\n";
       print "Please try something different than '$choice'\n";
     } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');      open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
     print(OUT 'lonDefDomain'."\t".$choice."\n");      print(OUT 'lonDefDomain'."\t".$choice."\n");
     close(OUT);      close(OUT);
     $lonDefDomain=$choice;      $lonDefDomain=$choice;
     $r='l';      $r='l';
     $flag=1;      $flag=1;
     } else {
       print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
     }
   }
   
   
   # get domain description
   # accept if valid, if not valid, tell user and repeat
   $flag=0;
   
   while (!$flag) {
     print(&lt;&lt;END);
   
   **** Domain Description ****
   String describing the domain, to be shown to users.
   [Example, msu is Michigan State University]
   ENTER DOMAIN DESCRIPTION:
   END
   
     my $choice=&lt;&gt;;
     chomp($choice);
     if ($choice!~/:/) {
       open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
       print(OUT 'domainDescription'."\t".$choice."\n");
       close(OUT);
       $domainDescription=$choice;
       $flag=1;
   }    }
   else {    else {
     print "Invalid input (only alphanumeric characters supported).\n";      print "Invalid input (no ':' allowed).\n";
   }    }
 }  }
   
Line 175  if ($lonDefDomain) { Line 310  if ($lonDefDomain) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
   
 **** Machine ID Name ****  **** Machine ID Name ****
 [this does NOT need to correspond to internet address names;  [This does NOT need to correspond to internet address names;
  this name MUST be unique to the whole LON-CAPA network;   this name MUST be unique to the whole LON-CAPA network;
  we recommend that you use a name based off of your institution;   we recommend that you use a name based off of your institution.
  good examples: "msul1" or "bionetl1";   Good examples: "msul1" or "bioneta2".
  bad examples: "loncapabox" or "studentsinside"]   Bad examples: "loncapabox" or "studentsinside".
    Note that machine names are very hard to change later.]
 END  END
 # get machine name  # get machine name
 # accept if valid, if not valid, tell user and repeat  # accept if valid, if not valid, tell user and repeat
Line 197  END Line 333  END
 }  }
   my $choice=&lt;&gt;;    my $choice=&lt;&gt;;
   chomp($choice);    chomp($choice);
   if ($lonHostID and $choice=~/^\s*$/) {    if ($choice=~/capa/i) {
       print "Invalid input (names containing 'capa' are reserved).\n";
     } elsif ($lonHostID and $choice=~/^\s*$/) {
     $choice=$lonHostID;      $choice=$lonHostID;
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');      open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
     print(OUT 'lonHostID'."\t".$choice."\n");      print(OUT 'lonHostID'."\t".$choice."\n");
     close(OUT);      close(OUT);
     $lonHostID=$choice;      $lonHostID=$choice;
     $flag=1;      $flag=1;
   }    } elsif (length($choice)>45) {
   elsif ($choice!~/\_/ and $choice=~/^\w+$/) {      print "Name too long\n";
     } elsif (length($choice)<4) {
       print "Name too short\n";
     } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');      open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
     print(OUT 'lonHostID'."\t".$choice."\n");      print(OUT 'lonHostID'."\t".$choice."\n");
     close(OUT);      close(OUT);
     $lonHostID=$choice;      $lonHostID=$choice;
     $flag=1;      $flag=1;
     } else {
       print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
   }    }
   else {  
     print "Invalid input (only alphanumeric characters supported).\n";  
   }  
 }  }
   
 # get e-mail address  # get primary library server in domain
   if ($lonRole eq 'library') {
       if (!grep/^\Q$lonHostID\E$/,@libservers) {
           push(@libservers,$lonHostID);
       } 
       if (@libservers == 1) {
           $primaryLibServer = $libservers[0];
       }
   }
   while (!$flag) {
     print(&lt;&lt;END);
   **** Domain's Primary Library Server ID ****
   This should be the LON-CAPA machine ID of a library server in your 
   domain.  If you only have a single library server in your domain, then
   the Primary Library server ID will be the machine ID of that server. 
   This server will be where domain data which are not associated with any
   specific home library server will be stored (e.g., e-mail broadcast by
   administrators to users in the domain).
   END
       if (defined($primaryLibServer)) {
           print(&lt;&lt;END);
   ENTER DOMAIN'S PRIMARY LIBRARY SERVER ID [$primaryLibServer]:
   END
       } elsif (@libservers > 0) {
           print(&lt;&lt;END);
   ENTER DOMAIN'S PRIMARY LIBRARY SERVER ID [$libservers[0]]
   END
       } else {
           print (&lt;&lt;END);
   No library servers could be identified for this domain.  If you have already installed LON-CAPA on a different server (designated as a library server) in this domain, please enter the LONCAPA MACHINE ID of that server.  If not, you will need to install a LON-CAPA library server.  Enter the MACHINE ID of the server you plan to designate as a library server.
   END
       }
   
       my $choice=&lt;&gt;;
       chomp($choice);
       if ($primaryLibServer and $choice=~/^\s*$/) {
           $choice=$primaryLibServer;
           open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
           print(OUT 'primaryLibServer'."\t".$choice."\n");
           close(OUT);
           $flag=1;
       } elsif (length($choice)>35) {
           print "Name too long\n";
       } elsif (length($choice)<4) {
           print "Name too short\n";
       } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
           open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
           print(OUT 'primaryLibServer'."\t".$choice."\n");
           close(OUT);
           $primaryLibServer=$choice;
           $flag=1;
       } else {
           print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
       }
   }
   
   
   # get admin e-mail address
 # accept if valid, if not valid, tell user and repeat  # accept if valid, if not valid, tell user and repeat
 $flag=0;  $flag=0;
 my $lonAdmEmail;  my $lonAdmEMail;
 while (!$flag) {  while (!$flag) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
   
 **** System Administrator's E-mail ****  **** Server Administrators E-mail ****
 E-mail address of the person who will manage this machine  E-mail address of the person who will manage this machine
 [should be in the form somebody\@somewhere]  [should be in the form somebody\@somewhere]
 ENTER E-MAIL ADDRESS:  ENTER ADMIN E-MAIL ADDRESS:
 END  END
   
   my $choice=&lt;&gt;;    my $choice=&lt;&gt;;
   chomp($choice);    chomp($choice);
   if ($choice=~/\@/) {    if ($choice=~/\@/) {
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');      open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
     print(OUT 'lonAdmEmail'."\t".$choice."\n");      print(OUT 'lonAdmEMail'."\t".$choice."\n");
     close(OUT);      close(OUT);
     $lonAdmEmail=$choice;      $lonAdmEMail=$choice;
     $flag=1;      $flag=1;
   }    }
   else {    else {
Line 244  END Line 441  END
   }    }
 }  }
   
   
   # get support e-mail address
   # accept if valid, if not valid, tell user and repeat
   $flag=0;
   my $lonSupportEMail;
   while (!$flag) {
     print(&lt;&lt;END);
   
   **** Support E-mail ****
   E-mail address of the person who will receive 
   help requests from LON-CAPA users who access 
   the system via this server. If the address is left blank,
   then a help support form will not be displayed 
   as part of the help menu.
   [should be in the form somebody\@somewhere]
   ENTER SUPPORT E-MAIL ADDRESS:
   END
   
     my $choice=&lt;&gt;;
     chomp($choice);
     $choice =~ s/\s//g;
     if ( ($choice=~/\@/) || $choice eq '') {
       open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
       print(OUT 'lonSupportEMail'."\t".$choice."\n");
       close(OUT);
       $lonSupportEMail=$choice;
       $flag=1;
     }
     else {
       print "Invalid input (this either needs to be blank, or look like an e-mail address!).\n";
     }
   }
   
   
 # update loncapa.conf  # update loncapa.conf
 my $confdir='/etc/httpd/conf/';  my $confdir = '/etc/httpd/conf/';
 #my $confdir='';  if ('<DIST />' eq 'sles10' || '<DIST />' eq 'suse10.1' || '<DIST />' eq 'suse10.2') {
        $confdir = '/etc/apache2/';
   }   
 my $filename='loncapa.conf';  my $filename='loncapa.conf';
 my %perlvar;  my %perlvar;
     if (-e "$confdir$filename") {      if (-e "$confdir$filename") {
Line 255  my %perlvar; Line 488  my %perlvar;
     if ($configline =~ /^[^\#]*PerlSetVar/) {      if ($configline =~ /^[^\#]*PerlSetVar/) {
  my ($unused,$varname,$varvalue)=split(/\s+/,$configline);   my ($unused,$varname,$varvalue)=split(/\s+/,$configline);
  chomp($varvalue);   chomp($varvalue);
  $perlvar{$varname}=$varvalue;   $perlvar{$varname}=$varvalue if $varvalue!~/^\{\[\[\[\[/;
     }      }
  }   }
  close(CONFIG);   close(CONFIG);
     }      }
     $perlvar{'lonHostID'}=$lonHostID;      $perlvar{'lonHostID'}=$lonHostID;
     $perlvar{'lonDefDomain'}=$lonDefDomain;      $perlvar{'lonDefDomain'}=$lonDefDomain;
     $perlvar{'lonAdmEmail'}=$lonAdmEmail;      $perlvar{'lonAdmEMail'}=$lonAdmEMail;
       $perlvar{'lonSupportEMail'}=$lonSupportEMail;
     $perlvar{'lonRole'}=$lonRole;      $perlvar{'lonRole'}=$lonRole;
     unless ($perlvar{'lonSqlAccess'}) {      unless ($perlvar{'lonLoadLim'} and $perlvar{'lonLoadLim'}!~/\{\[\[\[\[/) {
        $perlvar{'lonSqlAccess'}='localhostkey';  
     }  
     unless ($perlvar{'lonLoadLim'}) {  
        $perlvar{'lonLoadLim'}='2.00';         $perlvar{'lonLoadLim'}='2.00';
     }      }
     unless ($perlvar{'lonExpire'}) {      unless ($perlvar{'lonUserLoadLim'} and $perlvar{'lonUserLoadLim'}!~/\{\[\[\[\[/) {
          $perlvar{'lonUserLoadLim'}='0';
       }
       unless ($perlvar{'lonExpire'} and $perlvar{'lonExpire'}!~/\{\[\[\[\[/) {
        $perlvar{'lonExpire'}='86400';         $perlvar{'lonExpire'}='86400';
     }      }
     unless ($perlvar{'lonReceipt'}) {      unless ($perlvar{'lonReceipt'} and $perlvar{'lonReceipt'}!~/\{\[\[\[\[/) {
        my $lonReceipt='';         my $lonReceipt='';
        srand($$.time);         srand(time ^ $$ ^ unpack "%L*", `ps axww | gzip`);
        my @alnum=(0..9,a..z);         my @alnum=(0..9,a..z);
        foreach my $i (1..20) {         foreach my $i (1..20) {
  $lonReceipt.=$alnum[int(rand(36))];   $lonReceipt.=$alnum[int(rand(36))];
Line 286  my %perlvar; Line 520  my %perlvar;
       die("Cannot output to $confdir$filename\n");        die("Cannot output to $confdir$filename\n");
     foreach my $key (keys %perlvar) {      foreach my $key (keys %perlvar) {
       my $value=$perlvar{$key};        my $value=$perlvar{$key};
         my $line = "PerlSetVar     $key      $value"; 
         if ($value eq '') {
             $line = '#'.$line;
         }
       print(OUT &lt;&lt;END);        print(OUT &lt;&lt;END);
 PerlSetVar     $key      $value  $line
 END  END
     }      }
     close(OUT);      close(OUT);
Line 295  END Line 533  END
 </perlscript>  </perlscript>
 </file>  </file>
 <file>  <file>
 <target dist='default'>/</target>  <target dist='default'>/etc/httpd/conf/</target>
   <target dist='sles10 suse10.1 suse10.2'>/etc/apache2/</target>
 <perlscript mode='fg'>  <perlscript mode='fg'>
   sub securesetting {
       my (%perlvar)=@_;
       my $securestatus='unknown';
       my $securenum='';
       if      ( $perlvar{'loncAllowInsecure'}&&  $perlvar{'londAllowInsecure'}) {
    $securestatus='no';                  $securenum='4';
       } elsif ( $perlvar{'loncAllowInsecure'}&& !$perlvar{'londAllowInsecure'}) {
    $securestatus='lond';                $securenum='3';
       } elsif (!$perlvar{'loncAllowInsecure'}&&  $perlvar{'londAllowInsecure'}) {
    $securestatus='lonc';                $securenum='2';
       } elsif (!$perlvar{'loncAllowInsecure'}&& !$perlvar{'londAllowInsecure'}) {
    $securestatus='yes (lond and lonc)'; $securenum='1';
       }
       return ($securestatus,$securenum);
   }
 # read values from loncapa.conf  # read values from loncapa.conf
 my $confdir='/etc/httpd/conf/';  my $confdir = "<TARGET />";
 #my $confdir='';  
 my $filename='loncapa.conf';  my $filename='loncapa.conf';
 my %perlvar;  my %perlvar;
   my ($securestatus,$securenum);
     if (-e "$confdir$filename") {      if (-e "$confdir$filename") {
  open(CONFIG,'&lt;'.$confdir.$filename) or    open(CONFIG,'&lt;'.$confdir.$filename) or 
           die("Can't read $confdir$filename");            die("Can't read $confdir$filename");
Line 314  my %perlvar; Line 568  my %perlvar;
  }   }
  close(CONFIG);   close(CONFIG);
     }      }
       unless ($perlvar{'lonLoadLim'} and $perlvar{'lonLoadLim'}!~/\{\[\[\[\[/) {
          $perlvar{'lonLoadLim'}='2.00';
       }
       unless ($perlvar{'lonUserLoadLim'} and $perlvar{'lonUserLoadLim'}!~/\{\[\[\[\[/) {
          $perlvar{'lonUserLoadLim'}='0';
       }
       unless ($perlvar{'lonExpire'} and $perlvar{'lonExpire'}!~/\{\[\[\[\[/) {
          $perlvar{'lonExpire'}='86400';
       }
       unless ($perlvar{'londAllowInsecure'} and $perlvar{'londAllowInsecure'}!~/\{\[\[\[\[/) {
          $perlvar{'londAllowInsecure'}='1';
       }
       unless ($perlvar{'loncAllowInsecure'} and $perlvar{'loncAllowInsecure'}!~/\{\[\[\[\[/) {
          $perlvar{'loncAllowInsecure'}='1';
       }
       ($securestatus,$securenum)=&securesetting(%perlvar);
       unless ($perlvar{'lonReceipt'} and $perlvar{'lonReceipt'}!~/\{\[\[\[\[/) {
          my $lonReceipt='';
          srand(time ^ $$ ^ unpack "%L*", `ps axww | gzip`);
          my @alnum=(0..9,a..z);
          foreach my $i (1..20) {
    $lonReceipt.=$alnum[int(rand(36))];
          }
          $perlvar{'lonReceipt'}=$lonReceipt;
       }
 my %perlvarstatic;  my %perlvarstatic;
     if (-e "${confdir}loncapa_apache.conf") {      if (-e "${confdir}loncapa_apache.conf") {
  open(CONFIG,'&lt;'.$confdir.'loncapa_apache.conf') or    open(CONFIG,'&lt;'.$confdir.'loncapa_apache.conf') or 
Line 327  my %perlvarstatic; Line 606  my %perlvarstatic;
  }   }
  close(CONFIG);   close(CONFIG);
     }      }
   
       my (@hosts_files, @domain_files);
       if ( $lonCluster ne 'existing') {
    push(@domain_files,'../'.$lonCluster.'_domain.tab',
        '../'.$lonCluster.'_dns_domain.tab');
    push(@hosts_files,'../'.$lonCluster.'_hosts.tab',
        '../'.$lonCluster.'_dns_hosts.tab');
       }
       push(@domain_files,'/home/httpd/lonTabs/domain.tab',
            '/home/httpd/lonTabs/dns_domain.tab');
       push(@hosts_files,'/home/httpd/lonTabs/hosts.tab',
            '/home/httpd/lonTabs/dns_hosts.tab');
   
       if (!$domainDescription) {
    foreach my $file (@domain_files) {
       open(IN,'&lt;'.$file);
       while(my $line = &lt;IN&gt;) {
    if ($line =~ /^\Q$perlvar{'lonDefDomain'}\E\:/) {
       (undef,$domainDescription,$domainTabExtras)=split(/:/,$line,3);
       chomp($domainDescription);
       chomp($domainTabExtras);
       # the remianing field (primary lib server) is handled later
       $domainTabExtras = join(':',(split(/:/,$domainTabExtras))[0..5]);
       last;
    }
       }
       close(IN);
       last if ($domainDescription);
    }
       }
   
       while(!$primaryLibServ && (@hosts_file || @domain_files)) {
    my $file = shift(@domain_files);
           open(IN,'&lt;'.$file);
           while(my $line = &lt;IN&gt;) {
               if ($line =~ /^\Q$perlvar{'lonDefDomain'}\E\:/) {
    $primaryLibServer=(split(/:/,$line))[8];
                   chomp($primaryLibServer);
               }
           }
           close(IN);
    last if ($primaryLibServer);
    $file = shift(@hosts_files);
    open(IN,'&lt;'.$file);
    while(my $line = &lt;IN&gt;) {
       if ($line =~ /^([^\:]+)\:\Q$perlvar{'lonDefDomain'}\E\:library\:/) {
    push(@libservers,$1);
       }
    }
    close(IN);
    if (@libservers == 1) {
       $primaryLibServer = $libservers[0];
    }
       }
      
 # implement editing logic below, interactively  # implement editing logic below, interactively
 # update loncapa.conf until 7 is entered  # update loncapa.conf until 12 is entered
   
 $flag=0;  $flag=0;
   
 while (!$flag) {  while (!$flag) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
   
 ===============================================================================  ===============================================================================
 This is now the current configuration of your machine.  This is now the current configuration of your machine.
 1) Domain Name: $perlvar{'lonDefDomain'}   1) Domain Name: $perlvar{'lonDefDomain'}
 2) Machine Name: $perlvar{'lonHostID'}   2) Domain Description: $domainDescription
 3) System Administrator's E-mail Address: $perlvar{'lonAdmEmail'}   3) Machine Name: $perlvar{'lonHostID'}
 4) Role: $perlvar{'lonRole'}   4) ID of primary library server for domain: $primaryLibServer
 5) Cache Expiration Time: $perlvar{'lonExpire'}   5) Server Administrator's E-mail Address: $perlvar{'lonAdmEMail'}
 6) Server Load: $perlvar{'lonLoadLim'}   6) Support E-mail Address: $perlvar{'lonSupportEMail'}
 7) Everything is correct up above   7) Role: $perlvar{'lonRole'}
 END   8) Cache Expiration Time: $perlvar{'lonExpire'}
    9) Server Load: $perlvar{'lonLoadLim'}
   10) User Load: $perlvar{'lonUserLoadLim'}
   11) Allow only secure connections: $securestatus 
   12) Everything is correct up above
   END
   
   my @error;
   foreach my $v ($perlvar{'lonDefDomain'},$perlvar{'lonHostID'}) {
      if (length($v)>35) { $error.="\nName $v too long"; }
      if (length($v)<2) { $error.="\nName $v too short"; }
      if ($v=~/capa/i) {
    if ($v!~/^oucapa\d+$/ && 
       ($v!~/^capa\d+$/ && $perlvar{'lonDefDomain'} eq 'uwsp')) {
    push(@error,"Name $v contains 'capa'");
    }
      }
      foreach my $bad ('res','raw','userfiles','priv','adm','uploaded',
    'editupload') {
         push(@error,"\nName $v reserved.") if $v eq $bad;
      }
      if ($v=~/[^\w\-.]/) { push(@error,"Name $v contains special characters"); }
   }
   if ($domainDescription =~ /^\s*$/) {
      push(@error,"Domain Description is blank.");
   } elsif ($domainDescription!~/^[\(\)\-\w\s,]+$/) {
      push(@error,"Domain Description contains special characters.");
   } 
   foreach my $v ($perlvar{'lonExpire'},$perlvar{'lonLoadLim'}) {
      unless ($v=~/^[\d+\.]+$/) { push(@error,"Number expected instead of $v"); }
   }
   unless (($perlvar{'lonRole'} eq 'library') || ($perlvar{'lonRole'} eq 'access')) {
      push(@error,"Invalid Role");
   }
   
   if (!defined($primaryLibServer)) {
      if (@libservers > 0) {
          push(@error,"No primary library server ID designated. Choose from: ".join(',',sort(@libservers)));
      } else {
          push(@error,"No library servers in this domain (including current server)");
      }
   } else {
      if (length($primaryLibServer)>35) { push(@error,"Primary Library Server ID:  $primaryLibServer too long"); }
      if (length($primaryLibServer)<2) { push(@error,"Primary Library Server ID:  $primaryLibServer too short"); }
      if ($primaryLibServer =~/capa/i) {
           if ($primaryLibServer!~/^oucapa\d+$/ &&
               ($primaryLibServer!~/^capa\d+$/ && $perlvar{'lonDefDomain'} eq 'uwsp')) {
                    push(@error,"Primary library server ID $primaryLibServer contains 'capa'")
           }
      }
      foreach my $bad ('res','raw','userfiles','priv','adm','uploaded',
           'editupload') {
         push(@error,"Primary library server ID $primaryLibServer reserved.") if $primaryLibServer eq $bad;
      }
      if ($primaryLibServer=~/[^\w\-.]/) { push(@error,"Primary library server ID $primaryLibServer contains special characters"); }
   }
   
   
   if (@error) { print "\n*** ERRORS: \n\t".join("\n\t",@error)."\n"; }
   print(&lt;&lt;END);    print(&lt;&lt;END);
 ENTER A CHOICE OF 1-6 TO CHANGE, otherwise ENTER 7:  ENTER A CHOICE OF 1-11 TO CHANGE, otherwise ENTER 12:
 END  END
 my $choice=&lt;&gt;;  my $choice=&lt;&gt;;
 chomp($choice);  chomp($choice);
   if ($choice==1) {    if ($choice==1) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
 2) Domain Name: $perlvar{'lonDefDomain'}  1) Domain Name: $perlvar{'lonDefDomain'}
 ENTER NEW VALUE:  ENTER NEW VALUE (this is an internal value used to identify a group of
                    LON-CAPA machines, it must be alphanumerical, we suggest
                    using a part of your actual DNS domain. For example, for
                    the machine loncapa.msu.edu, we set the Domain to msu):
 END  END
     my $choice2=&lt;&gt;;      my $choice2=&lt;&gt;;
     chomp($choice2);      chomp($choice2);
Line 360  END Line 756  END
   }    }
   elsif ($choice==2) {    elsif ($choice==2) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
 1) Machine Name: $perlvar{'lonHostID'}  2) Domain Description: $domainDescription
 ENTER NEW VALUE:  ENTER NEW VALUE (this should be a string that describes your domain, spaces
                    and punctuation are fine except for ':'):
 END  END
     my $choice2=&lt;&gt;;      my $choice2=&lt;&gt;;
     chomp($choice2);      chomp($choice2);
     $perlvar{'lonHostID'}=$choice2;      $domainDescription=$choice2;
   }    }
   elsif ($choice==3) {    elsif ($choice==3) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
 3) System Administrator's E-mail Address: $perlvar{'lonAdmEmail'}  3) Machine Name: $perlvar{'lonHostID'}
 ENTER NEW VALUE:  ENTER NEW VALUE (this will be the name of the machine in the LON-CAPA network
                    it cannot contain any of '_' '-' '.' or ':'. We suggest that
                    if you are in the domain 'example' and are the first library
                    server you enter 'examplel1') :
 END  END
     my $choice2=&lt;&gt;;      my $choice2=&lt;&gt;;
     chomp($choice2);      chomp($choice2);
     $perlvar{'lonAdmEmail'}=$choice2;      $perlvar{'lonHostID'}=$choice2;
   }    }
   elsif ($choice==4) {    elsif ($choice==4) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
 4) Role: $perlvar{'lonRole'}  4) ID of primary library server for domain: $primaryLibServer
 ENTER NEW VALUE:  ENTER NEW VALUE (this will be the LON-CAPA Machine ID of a library server in
                    your domain; it cannot contain any of '_' '-' '.' or ':'. 
                    This server will be where domain data which are not 
                    associated with any specific home library server
                    will be stored (e.g., e-mail broadcast by Domain Coordinators
                    to users in the domain).
 END  END
     my $choice2=&lt;&gt;;      my $choice2=&lt;&gt;;
     chomp($choice2);      chomp($choice2);
     $perlvar{'lonRole'}=$choice2;      $primaryLibServer=$choice2;
   }    }
   elsif ($choice==5) {    elsif ($choice==5) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
 5) Cache Expiration Time: $perlvar{'lonExpire'}  5) Server Administrator's E-mail Address: $perlvar{'lonAdmEMail'}
 ENTER NEW VALUE:  ENTER NEW VALUE:
 END  END
     my $choice2=&lt;&gt;;      my $choice2=&lt;&gt;;
     chomp($choice2);      chomp($choice2);
     $perlvar{'lonExpire'}=$choice2;      $perlvar{'lonAdmEMail'}=$choice2;
   }    }
   elsif ($choice==6) {    elsif ($choice==6) {
   print(&lt;&lt;END);    print(&lt;&lt;END);
 6) Server Load: $perlvar{'lonLoadLim'}  6) Support E-mail Address: $perlvar{'lonSupportEMail'}
 ENTER NEW VALUE:  ENTER NEW VALUE:
 END  END
     my $choice2=&lt;&gt;;      my $choice2=&lt;&gt;;
     chomp($choice2);      chomp($choice2);
     $perlvar{'lonLoadLim'}=$choice2;      $perlvar{'lonSupportEMail'}=$choice2;
   }    }
   elsif ($choice==7) {    elsif ($choice==7) {
     print(&lt;&lt;END);
   7) Role: $perlvar{'lonRole'}
   ENTER NEW VALUE (this should be either 'access' or 'library' 
                    if in doubt select 'library'):
   END
       my $choice2=&lt;&gt;;
       chomp($choice2);
       $perlvar{'lonRole'}=$choice2;
     }
     elsif ($choice==8) {
     print(&lt;&lt;END);
   8) Cache Expiration Time: $perlvar{'lonExpire'}
   ENTER NEW VALUE (in seconds, 86400 is a reasonable value):
   END
       my $choice2=&lt;&gt;;
       chomp($choice2);
       $perlvar{'lonExpire'}=$choice2;
     }
     elsif ($choice==9) {
     print(&lt;&lt;END);
   9) Server Load: $perlvar{'lonLoadLim'}
   ENTER NEW VALUE:
   END
       my $choice2=&lt;&gt;;
       chomp($choice2);
       $perlvar{'lonLoadLim'}=$choice2;
     }
     elsif ($choice==10) {
     print(&lt;&lt;END);
   10) User Load: $perlvar{'lonUserLoadLim'}
   Numer of users that can login before machine is 'overloaded'
   ENTER NEW VALUE (integer value, 0 means there is no limit):
   END
       my $choice2=&lt;&gt;;
       chomp($choice2);
       $perlvar{'lonUserLoadLim'}=$choice2;
     }
     elsif ($choice==11) {
     print(&lt;&lt;END);
   11) Allow only secure connections: $securestatus 
   The Lon-CAPA communication daemons lonc and lond can be configured to
   allow only secure connections by default.
   
   POSSIBLE CHOICES:
   1) allow only secure connections and don't connect to machines that
       can not be connected to securely
   2) allow only secure connections but allow this machine to connect to 
       machines that don't support secure connections
   3) allow insecure connections to this machine but only allow connections
       to machines that support secure connections
   4) allow insecure connections
   ENTER NEW VALUE (currenly $securenum):
   END
       my $choice2=&lt;&gt;;
       chomp($choice2);
       if      ($choice2 eq '1') {
    $perlvar{'loncAllowInsecure'}=0;$perlvar{'londAllowInsecure'}=0;
       } elsif ($choice2 eq '2') {
    $perlvar{'loncAllowInsecure'}=0;$perlvar{'londAllowInsecure'}=1;
       } elsif ($choice2 eq '3') {
    $perlvar{'loncAllowInsecure'}=1;$perlvar{'londAllowInsecure'}=0;
       } elsif ($choice2 eq '4') {
    $perlvar{'loncAllowInsecure'}=1;$perlvar{'londAllowInsecure'}=1;
       }
       ($securestatus,$securenum)=&securesetting(%perlvar);
     }
     elsif (($choice==12) && (!$error)) {
     $flag=1;      $flag=1;
   }    }
   else {    else {
       print "Invalid input.\n";
   }    }
 }  }
     open(OUT,"&gt;$confdir$filename") or      open(OUT,"&gt;$confdir$filename") or
       die("Cannot output to $confdir$filename\n");        die("Cannot output to $confdir$filename\n");
     foreach my $key (keys %perlvar) {      foreach my $key (keys %perlvar) {
       my $value=$perlvar{$key};        my $value=$perlvar{$key};
         my $line = "PerlSetVar     $key      $value";
         if ($value eq '') {
             $line = '#'.$line;
         }
       print(OUT &lt;&lt;END) unless $perlvarstatic{$key};        print(OUT &lt;&lt;END) unless $perlvarstatic{$key};
 PerlSetVar     $key      $value  $line
 END  END
     }      }
     close(OUT);      close(OUT);
Line 425  END Line 901  END
 <target dist='default'>loncom/hosts.tab</target>  <target dist='default'>loncom/hosts.tab</target>
 <perlscript mode='fg'>  <perlscript mode='fg'>
 unless (-l "<TARGET />") {  unless (-l "<TARGET />") {
   print(&lt;&lt;END);    my $hostname=`hostname -f`;chomp($hostname);
     $date=`date -I`; chomp($date);
 ===============================================================================    $lonHostID=$perlvar{'lonHostID'};
 What hosts.tab would you like to have installed?    $lonHostID=~s/[^\w\-.]//g;
 (hosts.tab is a listing of all other internet machines    $lineexistflag=0;
 that a server system considers to be valid server systems    $hostidexistflag=0;
 on the LON-CAPA network)    $line2insert=&lt;&lt;END;
   $perlvar{'lonHostID'}:$perlvar{'lonDefDomain'}:$perlvar{'lonRole'}:$hostname
 1) PRODUCTION - you want to deliver courses today or sometime very soon  END
                 on this machine    $domaininsert="$perlvar{'lonDefDomain'}:$domainDescription:$domainTabExtras:$primaryLibServer\n";
 2) STAND-ALONE - you want this machine to run in 'stand-alone' mode and    if ($lonCluster eq 'standalone') {
                  not be connected to other LON-CAPA machines for now      open(OUT,'&gt;../'.$lonCluster.'_hosts.tab') or
 3) DEVELOPMENT - you want to play with or explore LON-CAPA        die('file generation error');
 4) PRESERVE the existing hosts.tab (/home/httpd/lonTabs/hosts.tab)        print(OUT $line2insert);
         print OUT ("^$hostname\n");
 END      close(OUT);
 # Option number 26 will install rawhide_hosts.tab, but      open(OUT,'&gt;../'.$lonCluster.'_dns_hosts.tab') or
 # the typical user does not want to be part of an intensive        die('file generation error');
 # machine test cluster.        print(OUT $line2insert);
       close(OUT);
 # get input      open(OUT,'&gt;../'.$lonCluster.'_domain.tab') or
 # if valid then process, otherwise loop        die('file generation error');
 my $hostname=`hostname`;chomp($hostname);        print(OUT $domaininsert);
 my $hostaddress=`hostname -i $hostname`;chomp($hostaddress);      close(OUT);
 $flag=0;      open(OUT,'&gt;../'.$lonCluster.'_dns_domain.tab') or
 while (!$flag) {        die('file generation error');
   print "ENTER 1, 2, 3, or 4:\n";        print(OUT $domaininsert);
   my $choice=&lt;&gt;;  
   chomp($choice);  
   if ($choice==1) {  
     $lonCluster='production';  
     `rm -f ../hosts.tab`;  
     `ln -s production_hosts.tab ../hosts.tab`;  
     $flag=1;  
   }  
   elsif ($choice==2) {  
     $lonCluster='standalone';  
     open(OUT,'&gt;../standalone_hosts.tab') or  
       die("cannot open loncom/standalone_hosts.tab for output\n");  
     print(OUT &lt;&lt;END);  
 $perlvar{'lonHostID'}:$perlvar{'lonDefDomain'}:$perlvar{'lonRole'}:$hostname:$hostaddress  
 END  
     close(OUT);      close(OUT);
     `rm -f ../hosts.tab`;  
     `ln -s standalone_hosts.tab ../hosts.tab`;  
     $flag=1;  
   }  
   elsif ($choice==3) {  
     $lonCluster='development';  
     `rm -f loncom/hosts.tab`;  
     `ln -s development_hosts.tab ../hosts.tab`;  
     $flag=1;  
   }    }
   elsif ($choice==4) {    if ($flag==1) {
     $lonCluster='existing';  
     `rm -f ../hosts.tab`;      `rm -f ../hosts.tab`;
     `touch existing_hosts.tab`;      `rm -f ../dns_hosts.tab`;
     if (-e '/home/httpd/lonTabs/hosts.tab') {      `ln -s ${lonCluster}_dns_hosts.tab ../dns_hosts.tab`;
       `cp /home/httpd/lonTabs/hosts.tab ../existing_hosts.tab`;      open(IN,'&lt;../'.$lonCluster.'_dns_hosts.tab');
       while(my $line = &lt;IN&gt;) {
         if ($line =~ /^\Q$line2insert\E$/) {
           $lineexistflag=1;
         }
         if ($line =~ /^\Q$lonHostID\E\:/) {
           $hostidexistflag=1;
         }
       }
       close(IN);
       if ($hostidexistflag and !$lineexistflag) {
         print &lt;&lt;END;
   WARNING: $lonHostID already exists inside
   loncapa/loncom/${lonCluster}_dns_hosts.tab.  The entry inside
   ${lonCluster}_dns_hosts.tab does not match your settings.
   An entry inside ${lonCluster}_hosts.tab will be made
   with your new values.
   END
         `grep -v "$lonHostID:" ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
          open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
            die("cannot open loncom/${lonCluster}_hosts.tab for output\n");
            print(OUT $line2insert);
          close(OUT);
         `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
         # email appropriate message
         `echo "REPLACE:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "REPLACE:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
       }
       elsif ($hostidexistflag and $lineexistflag) {
         print &lt;&lt;END;
   Entry exists in ${lonCluster}_dns_hosts.tab. Making duplicate entry in ${lonCluster}_hosts.tab
   END
         `grep -v "$lonHostID:" ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
          open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
            die("cannot open loncom/${lonCluster}_hosts.tab for output\n");
            print(OUT $line2insert);
          close(OUT);
         `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
         # email appropriate message
         `echo "STABLEUPDATE:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "STABLEUPDATE:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
       }
       elsif (!$hostidexistflag and !$lineexistflag) {
         print &lt;&lt;END;
   New entry for $lonCluster.
   END
         `cat ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
          open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
            die("cannot open loncom/new_${lonCluster}_hosts.tab for output\n");
            print(OUT $line2insert);
          close(OUT);
         `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
         # email appropriate message
         `echo "INSERT:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "INSERT:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
     }      }
     `ln -s existing_hosts.tab ../hosts.tab`;  
     $flag=1;  
   }  
   elsif ($choice==26) {  
     $lonCluster='rawhide';  
     `rm -f ../hosts.tab`;  
     `ln -s rawhide_hosts.tab ../hosts.tab`;  
     $flag=1;  
   }    }
   else {    $lineexistflag=0;
     if ($flag==1) {
       `rm -f ../domain.tab`;
       `rm -f ../dns_domain.tab`;
       `ln -s ${lonCluster}_dns_domain.tab ../dns_domain.tab`;
       open(IN,'&lt;../'.$lonCluster.'_dns_domain.tab');
       while(my $line = &lt;IN&gt;) {
         if ($line =~/^\Q$domaininsert\E$/) {
           $lineexistflag=1;
         }
         if ($line =~/^\Q$perlvar{'lonDefDomain'}\E\:/) {
           $domainexistflag=1;
         }
       }
       close(IN);
       if ($domainexistflag and !$lineexistflag) {
         print &lt;&lt;END;
   WARNING: $perlvar{'lonDefDomain'} already exists inside
   loncapa/loncom/${lonCluster}_dns_domain.tab.  The entry inside
   ${lonCluster}_dns_domain.tab does not match your settings.
   An entry will be made in inside ${lonCluster}_domain.tab
   with your new values.
   END
         `grep -v "$perlvar{'lonDefDomain'}:" ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
          open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
            die("cannot open loncom/${lonCluster}_domain.tab for output\n");
            print(OUT $domaininsert);
          close(OUT);
         `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
         # email appropriate message
         `echo "REPLACEdom:$lonCluster:$lonHostID:$date:$domaninsert" | mail -s "REPLACEdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
       }
       elsif ($domainexistflag and $lineexistflag) {
         `grep -v "$perlvar{'lonDefDomain'}:" ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
          open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
            die("cannot open loncom/${lonCluster}_domain.tab for output\n");
            print(OUT $domaininsert);
          close(OUT);
         print &lt;&lt;END;
   Entry exists in ${lonCluster}_dns_domain.tab. Making duplicate entry in ${lonCluster}_domain.tab
   END
         `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
         # email appropriate message
         `echo "STABLEUPDATEdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "STABLEUPDATEdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
       }
       elsif (!$domainexistflag and !$lineexistflag) {
         print &lt;&lt;END;
   New entry for $lonCluster.
   END
         `cat ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
          open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
            die("cannot open loncom/new_${lonCluster}_domain.tab for output\n");
            print(OUT $domaininsert);
          close(OUT);
         `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
         # email appropriate message
         `echo "INSERTdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "INSERTdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
       }
   }    }
 }  }
   
 }  
 </perlscript>  </perlscript>
 </file>  </file>
 </files>  </files>
Removed from v.1.8  
changed lines
  Added in v.1.56

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