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Diff for /loncom/auth/lonlogin.pm between versions 1.94.2.1 and 1.160

version 1.94.2.1, 2007/10/09 16:48:51 version 1.160, 2014/12/05 12:03:20
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # Login Screen  # Login Screen
 #  #
 # $Id$  # $Id$
 #  #
 # Copyright Michigan State University Board of Trustees  # Copyright Michigan State University Board of Trustees
 #  #
 # This file is part of the LearningOnline Network with CAPA (LON-CAPA).  # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 #  #
 # LON-CAPA is free software; you can redistribute it and/or modify  # 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  # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or  # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.  # (at your option) any later version.
 #  #
 # LON-CAPA is distributed in the hope that it will be useful,  # LON-CAPA is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of  # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.  # GNU General Public License for more details.
 #  #
 # You should have received a copy of the GNU General Public License  # You should have received a copy of the GNU General Public License
 # along with LON-CAPA; if not, write to the Free Software  # along with LON-CAPA; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #  #
 # /home/httpd/html/adm/gpl.txt  # /home/httpd/html/adm/gpl.txt
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   
 package Apache::lonlogin;  package Apache::lonlogin;
   
 use strict;  use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 use CGI::Cookie();  use Apache::File ();
 use Apache::File ();  use Apache::lonnet;
 use Apache::lonnet;  use Apache::loncommon();
 use Apache::loncommon();  use Apache::lonauth();
 use Apache::lonauth();  use Apache::lonlocal;
 use Apache::lonlocal;  use Apache::migrateuser();
 use Apache::migrateuser();  use lib '/home/httpd/lib/perl/';
 use lib '/home/httpd/lib/perl/';  use LONCAPA;
 use LONCAPA;   
    sub handler {
 sub handler {      my $r = shift;
     my $r = shift;  
       &Apache::loncommon::get_unprocessed_cgi
     &Apache::loncommon::get_unprocessed_cgi   (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
  (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},        $ENV{'REDIRECT_QUERY_STRING'}),
       $ENV{'REDIRECT_QUERY_STRING'}),   ['interface','username','domain','firsturl','localpath','localres',
  ['interface','username','domain','firsturl','localpath','localres',    'token','role','symb','iptoken']);
   'token']);      if (!defined($env{'form.firsturl'})) {
           &Apache::lonacc::get_posted_cgi($r,['firsturl']);
 # -- check if they are a migrating user      }
     if (defined($env{'form.token'})) {  
  return &Apache::migrateuser::handler($r);  # -- check if they are a migrating user
     }      if (defined($env{'form.token'})) {
    return &Apache::migrateuser::handler($r);
     &Apache::loncommon::no_cache($r);      }
     &Apache::lonlocal::get_language_handle($r);  
     &Apache::loncommon::content_type($r,'text/html');      &Apache::loncommon::no_cache($r);
     $r->send_http_header;      &Apache::lonlocal::get_language_handle($r);
     return OK if $r->header_only;      &Apache::loncommon::content_type($r,'text/html');
       $r->send_http_header;
       return OK if $r->header_only;
 # Are we re-routing?  
     if (-e '/home/httpd/html/lon-status/reroute.txt') {  
  &Apache::lonauth::reroute($r);  # Are we re-routing?
  return OK;      my $londocroot = $r->dir_config('lonDocRoot');
     }      if (-e "$londocroot/lon-status/reroute.txt") {
    &Apache::lonauth::reroute($r);
    return OK;
 # -------------------------------- Prevent users from attempting to login twice      }
     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));  
     my $lonid=$cookies{'lonID'};      $env{'form.firsturl'} =~ s/(`)/'/g;
     my $cookie;  
     if ($lonid) {  # -------------------------------- Prevent users from attempting to login twice
  my $handle=&LONCAPA::clean_handle($lonid->value);      my $handle = &Apache::lonnet::check_for_valid_session($r);
         my $lonidsdir=$r->dir_config('lonIDsDir');      if ($handle ne '') {
  if (-e "$lonidsdir/$handle.id") {          my $lonidsdir=$r->dir_config('lonIDsDir');
 # Is there an existing token file?          if ($handle=~/^publicuser\_/) {
     if ($handle=~/^publicuser\_/) {  # For "public user" - remove it, we apparently really want to login
 # For "public user" - remove it, we apparently really want to login      unlink($r->dir_config('lonIDsDir')."/$handle.id");
  unlink("$lonidsdir/$handle.id");          } else {
     } elsif ($handle ne '') {  # Indeed, a valid token is found
 # Indeed, a valid token is found              &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
  my $start_page =       my $start_page =
     &Apache::loncommon::start_page('Already logged in');          &Apache::loncommon::start_page('Already logged in');
  my $end_page =       my $end_page =
     &Apache::loncommon::end_page();          &Apache::loncommon::end_page();
  $r->print(<<ENDFAILED);              my $dest = '/adm/roles';
 $start_page              if ($env{'form.firsturl'} ne '') {
 <h1>You are already logged in</h1>                  $dest = $env{'form.firsturl'};
 <p>Please either <a href="/adm/roles">continue the current session</a> or              }
 <a href="/adm/logout">logout</a>.</p>      $r->print(
 <p>                    $start_page
 <a href="/adm/loginproblems.html">Problems?</a></p>                   .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
 $end_page                   .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
 ENDFAILED                    '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
                 return OK;                   .$end_page
      }                     );
  }              return OK;
     }          }
       }
 # ---------------------------------------------------- No valid token, continue  
   # ---------------------------------------------------- No valid token, continue
  # ---------------------------- Not possible to really login to domain "public"  
     if ($env{'form.domain'} eq 'public') {  # ---------------------------- Not possible to really login to domain "public"
  $env{'form.domain'}='';      if ($env{'form.domain'} eq 'public') {
  $env{'form.username'}='';   $env{'form.domain'}='';
     }   $env{'form.username'}='';
 # ----------------------------------------------------------- Process Interface      }
     $env{'form.interface'}=~s/\W//g;  
   # ------ Is this page requested because /adm/migrateuser detected an IP change?
     my $textbrowsers=$r->dir_config('lonTextBrowsers');      my %sessiondata;
     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};      if ($env{'form.iptoken'}) {
               %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
     foreach (split(/\:/,$textbrowsers)) {          my $delete = &Apache::lonnet::tmpdel($env{'form.token'});
  if ($httpbrowser=~/$_/i) {      }
     $env{'form.interface'}='textual';  # ----------------------------------------------------------- Process Interface
         }      $env{'form.interface'}=~s/\W//g;
     }  
       (undef,undef,undef,undef,undef,undef,my $clientmobile) =
     my $fullgraph=($env{'form.interface'} ne 'textual');          &Apache::loncommon::decode_user_agent();
   
     my $iconpath=       my $iconpath=
  &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));   &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
   
     my $domain = &Apache::lonnet::default_login_domain();      my $lonhost = $r->dir_config('lonHostID');
     if (($env{'form.domain'}) &&       my $domain = &Apache::lonnet::default_login_domain();
  (&Apache::lonnet::domain($env{'form.domain'},'description'))) {      if ($lonhost ne '') {
  $domain=$env{'form.domain'};          unless ($sessiondata{'sessionserver'}) {
     }              my $redirect = &check_loginvia($domain,$lonhost);
     my $role    = $r->dir_config('lonRole');              if ($redirect) {
     my $loadlim = $r->dir_config('lonLoadLim');                  $r->print($redirect);
     my $servadm = $r->dir_config('lonAdmEMail');                  return OK;
     my $lonhost = $r->dir_config('lonHostID');              }
     my $tabdir  = $r->dir_config('lonTabDir');          }
     my $include = $r->dir_config('lonIncludes');      }
     my $expire  = $r->dir_config('lonExpire');  
     my $version = $r->dir_config('lonVersion');      if (($sessiondata{'domain'}) &&
     my $host_name = &Apache::lonnet::hostname($lonhost);          (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
           $domain=$sessiondata{'domain'};
 # --------------------------------------------- Default values for login fields      } elsif (($env{'form.domain'}) &&
    (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
     my $authusername=($env{'form.username'}?$env{'form.username'}:'');   $domain=$env{'form.domain'};
     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);      }
   
 # ---------------------------------------------------------- Determine own load      my $role    = $r->dir_config('lonRole');
     my $loadavg;      my $loadlim = $r->dir_config('lonLoadLim');
     {      my $uloadlim= $r->dir_config('lonUserLoadLim');
  my $loadfile=Apache::File->new('/proc/loadavg');      my $servadm = $r->dir_config('lonAdmEMail');
  $loadavg=<$loadfile>;      my $tabdir  = $r->dir_config('lonTabDir');
     }      my $include = $r->dir_config('lonIncludes');
     $loadavg =~ s/\s.*//g;      my $expire  = $r->dir_config('lonExpire');
     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);      my $version = $r->dir_config('lonVersion');
     my $userloadpercent=&Apache::lonnet::userload();      my $host_name = &Apache::lonnet::hostname($lonhost);
   
 # ------------------------------------------------------- Do the load balancing  # --------------------------------------------- Default values for login fields
     my $otherserver= &Apache::lonnet::absolute_url($host_name);     
     my $firsturl=      my ($authusername,$authdomain);
     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});      if ($sessiondata{'username'}) {
 # ---------------------------------------------------------- Are we overloaded?          $authusername=$sessiondata{'username'};
     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {      } else {
         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);          $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
  if ($unloaded) { $otherserver=$unloaded; }          $authusername=($env{'form.username'}?$env{'form.username'}:'');
     }      }
       if ($sessiondata{'domain'}) {
 # ----------------------------------------------------------- Get announcements          $authdomain=$sessiondata{'domain'};
     my $announcements=&Apache::lonnet::getannounce();      } else {
 # -------------------------------------------------------- Set login parameters          $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
           $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
     my @hexstr=('0','1','2','3','4','5','6','7',      }
                 '8','9','a','b','c','d','e','f');  
     my $lkey='';  # ---------------------------------------------------------- Determine own load
     for (0..7) {      my $loadavg;
         $lkey.=$hexstr[rand(15)];      {
     }   my $loadfile=Apache::File->new('/proc/loadavg');
    $loadavg=<$loadfile>;
     my $ukey='';      }
     for (0..7) {      $loadavg =~ s/\s.*//g;
         $ukey.=$hexstr[rand(15)];  
     }      my ($loadpercent,$userloadpercent);
       if ($loadlim) {
     my $lextkey=hex($lkey);          $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
     if ($lextkey>2147483647) { $lextkey-=4294967296; }      }
       if ($uloadlim) {
     my $uextkey=hex($ukey);          $userloadpercent=&Apache::lonnet::userload();
     if ($uextkey>2147483647) { $uextkey-=4294967296; }      }
   
 # -------------------------------------------------------- Store away log token      my $firsturl=
     my $logtoken=Apache::lonnet::reply(      ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
        'tmpput:'.$ukey.$lkey.'&'.$firsturl,  
        $lonhost);  # ----------------------------------------------------------- Get announcements
       my $announcements=&Apache::lonnet::getannounce();
 # ------------------- If we cannot talk to ourselves, we are in serious trouble  # -------------------------------------------------------- Set login parameters
   
     if ($logtoken eq 'con_lost') {      my @hexstr=('0','1','2','3','4','5','6','7',
         my $spares='';                  '8','9','a','b','c','d','e','f');
  my $last;      my $lkey='';
         foreach my $hostid (sort      for (0..7) {
     {          $lkey.=$hexstr[rand(15)];
  &Apache::lonnet::hostname($a) cmp      }
     &Apache::lonnet::hostname($b);  
     }      my $ukey='';
     keys(%Apache::lonnet::spareid)) {      for (0..7) {
             next if ($hostid eq $lonhost);          $ukey.=$hexstr[rand(15)];
     my $hostname = &Apache::lonnet::hostname($hostid);      }
     next if ($last eq $hostname);  
             $spares.='<br /><font size="+1"><a href="http://'.      my $lextkey=hex($lkey);
                 $hostname.      if ($lextkey>2147483647) { $lextkey-=4294967296; }
                 '/adm/login?domain='.$authdomain.'">'.  
                 $hostname.'</a>'.      my $uextkey=hex($ukey);
                 ' (preferred)</font>'.$/;      if ($uextkey>2147483647) { $uextkey-=4294967296; }
     $last=$hostname;  
         }  # -------------------------------------------------------- Store away log token
         $spares.= '<br />';      my $tokenextras;
  my %all_hostnames = &Apache::lonnet::all_hostnames();      if ($env{'form.role'}) {
         foreach my $hostid (sort          $tokenextras = '&role='.&escape($env{'form.role'});
     {      }
  &Apache::lonnet::hostname($a) cmp      if ($env{'form.symb'}) {
     &Apache::lonnet::hostname($b);          if (!$tokenextras) {
     }              $tokenextras = '&';
     keys(%all_hostnames)) {          }
             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});          $tokenextras .= '&symb='.&escape($env{'form.symb'});
     my $hostname = &Apache::lonnet::hostname($hostid);      }
             next if ($last eq $hostname);      my $logtoken=Apache::lonnet::reply(
             $spares.='<br /><a href="http://'.         'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
                 $hostname.         $lonhost);
                 '/adm/login?domain='.$authdomain.'">'.  
                 $hostname.'</a>';  # -- If we cannot talk to ourselves, or hostID does not map to a hostname
     $last=$hostname;  #    we are in serious trouble
         }  
  $r->print(<<ENDTROUBLE);      if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
 <html>          if ($logtoken eq 'no_such_host') {
 <head><title>The LearningOnline Network with CAPA</title></head>              &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
 <body bgcolor="#FFFFFF">          }
 <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />          my $spares='';
 <h3>This LON-CAPA server is temporarily not available for login</h3>   my $last;
 <p>Please attempt to login to one of the following servers:</p>$spares          foreach my $hostid (sort
 </body>      {
 </html>   &Apache::lonnet::hostname($a) cmp
 ENDTROUBLE      &Apache::lonnet::hostname($b);
         return OK;      }
     }      keys(%Apache::lonnet::spareid)) {
               next if ($hostid eq $lonhost);
 # ----------------------------------------------- Apparently we are in business      my $hostname = &Apache::lonnet::hostname($hostid);
     $servadm=~s/\,/\<br \/\>/g;      next if (($last eq $hostname) || ($hostname eq ''));
               $spares.='<br /><font size="+1"><a href="http://'.
 # --------------------------------------------------- Print login screen header                  $hostname.
     $r->print(<<ENDHEADER);                  '/adm/login?domain='.$authdomain.'">'.
 <html>                  $hostname.'</a>'.
 <head>                  ' '.&mt('(preferred)').'</font>'.$/;
 <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />      $last=$hostname;
 <title>The LearningOnline Network with CAPA Login</title>          }
 </head>          if ($spares) {
 ENDHEADER              $spares.= '<br />';
 # ---------------------------------------------------- Serve out DES JavaScript          }
     {          my %all_hostnames = &Apache::lonnet::all_hostnames();
  my $jsh=Apache::File->new($include."/londes.js");          foreach my $hostid (sort
         $r->print(<$jsh>);      {
     }   &Apache::lonnet::hostname($a) cmp
       &Apache::lonnet::hostname($b);
 # ----------------------------------------------------------- Front page design      }
     my $pgbg=      keys(%all_hostnames)) {
       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');              next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
     my $font=              my $hostname = &Apache::lonnet::hostname($hostid);
       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');              next if (($last eq $hostname) || ($hostname eq ''));
     my $link=              $spares.='<br /><a href="http://'.
       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');               $hostname.
     my $vlink=               '/adm/login?domain='.$authdomain.'">'.
       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');               $hostname.'</a>';
     my $alink=&Apache::loncommon::designparm('login.alink',$domain);              $last=$hostname;
     my $mainbg=           }
       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');           $r->print(
     my $sidebg=     '<html>'
       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');    .'<head><title>'
     my $logo=&Apache::loncommon::designparm('login.logo',$domain);    .&mt('The LearningOnline Network with CAPA')
     my $img=&Apache::loncommon::designparm('login.img',$domain);    .'</title></head>'
     my $domainlogo=&Apache::loncommon::domainlogo($domain);    .'<body bgcolor="#FFFFFF">'
     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',                                                      $domain);    .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
     my $showcoursecat =    .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
         &Apache::loncommon::designparm('login.coursecatalog',$domain);    .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
           if ($spares) {
               $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
 # ----------------------------------------------------------------------- Texts                       .'</p>'
                        .$spares);
 my %lt=&Apache::lonlocal::texthash(          }
   'un'  => 'Username',          $r->print('</body>'
   'pw'  => 'Password',                   .'</html>'
   'dom' => 'Domain',          );
   'perc' => 'percent',          return OK;
   'load' => 'Load',      }
                   'userload' => 'User Load',  
                   'about'  => 'About LON-CAPA',  # ----------------------------------------------- Apparently we are in business
                   'access' => 'Accessibility Options',      $servadm=~s/\,/\<br \/\>/g;
                   'catalog' => 'Course Catalog',  
   'auth' => 'userauthentication.gif',  # ----------------------------------------------------------- Front page design
   'log' => 'Log in',      my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
   'help' => 'Log-in Help',      my $font=&Apache::loncommon::designparm('login.font',$domain);
   'serv' => 'Server',      my $link=&Apache::loncommon::designparm('login.link',$domain);
                   'servadm' => 'Server Administration',      my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
                   'helpdesk' => 'Contact Helpdesk',      my $alink=&Apache::loncommon::designparm('login.alink',$domain);
                   'forgotpw' => 'Forgot password?');      my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
 # -------------------------------------------------- Change password field name      my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
     my $now=time;      my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
     my $forgotpw = &forgotpwdisplay(%lt);      my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
     my $loginhelp = &loginhelpdisplay(%lt);      my $logo=&Apache::loncommon::designparm('login.logo',$domain);
 # ---------------------------------------------------------- Serve rest of page      my $img=&Apache::loncommon::designparm('login.img',$domain);
     $r->print(<<ENDSCRIPT);      my $domainlogo=&Apache::loncommon::domainlogo($domain);
       my $showbanner = 1;
 <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"      my $showmainlogo = 1;
   topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>      if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
           $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
  <script language="JavaScript">      }
     function send()      if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
     {          $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
  this.document.server.elements.uname.value      }
        =this.document.client.elements.uname.value;      my $showadminmail;
       my @possdoms = &Apache::lonnet::current_machine_domains();
         this.document.server.elements.udom.value      if (grep(/^\Q$domain\E$/,@possdoms)) {
        =this.document.client.elements.udom.value;          $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
       }
         this.document.server.elements.imagesuppress.value      my $showcoursecat =
        =this.document.client.elements.imagesuppress.checked;          &Apache::loncommon::designparm('login.coursecatalog',$domain);
       my $shownewuserlink =
         this.document.server.elements.embedsuppress.value          &Apache::loncommon::designparm('login.newuser',$domain);
        =this.document.client.elements.embedsuppress.checked;      my $showhelpdesk =
           &Apache::loncommon::designparm('login.helpdesk',$domain);
         this.document.server.elements.appletsuppress.value      my $now=time;
        =this.document.client.elements.appletsuppress.checked;      my $js = (<<ENDSCRIPT);
   
         this.document.server.elements.fontenhance.value  <script type="text/javascript" language="JavaScript">
        =this.document.client.elements.fontenhance.checked;  // <![CDATA[
   function send()
         this.document.server.elements.blackwhite.value  {
        =this.document.client.elements.blackwhite.checked;  this.document.server.elements.uname.value
   =this.document.client.elements.uname.value;
         this.document.server.elements.remember.value  
        =this.document.client.elements.remember.checked;  this.document.server.elements.udom.value
   =this.document.client.elements.udom.value;
         uextkey=this.document.client.elements.uextkey.value;  
         lextkey=this.document.client.elements.lextkey.value;  uextkey=this.document.client.elements.uextkey.value;
         initkeys();  lextkey=this.document.client.elements.lextkey.value;
   initkeys();
         this.document.server.elements.upass0.value  
     =crypted(this.document.client.elements.upass$now.value.substr(0,15));  this.document.server.elements.upass0.value
  this.document.server.elements.upass1.value      =this.document.client.elements.upass$now.value.substr(0,15);
     =crypted(this.document.client.elements.upass$now.value.substr(15,15));  this.document.server.elements.upass1.value
  this.document.server.elements.upass2.value      =this.document.client.elements.upass$now.value.substr(15,15);
     =crypted(this.document.client.elements.upass$now.value.substr(30,15));  this.document.server.elements.upass2.value
       =this.document.client.elements.upass$now.value.substr(30,15);
         this.document.client.elements.uname.value='';  
         this.document.client.elements.upass$now.value='';  if(this.document.server.action.substr(0,5) === 'http:'){
       for (var idx in [1,2,3]){
         this.document.server.submit();          this.document.server.elements['upass' + idx].value =
  return false;              crypted(this.document.server.elements['upass' + idx].value);
     }      }
  </script>  }
 ENDSCRIPT  
   this.document.client.elements.uname.value='';
     if ($fullgraph) {  this.document.client.elements.upass$now.value='';
  $r->print(  
   '<table width="100%" cellpadding=0 cellspacing=0 border=0>');  this.document.server.submit();
     }  return false;
   }
     $r->print(<<ENDSERVERFORM);  
   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">  function enableInput() {
    <input type="hidden" name="logtoken" value="$logtoken" />      this.document.client.elements.upass$now.removeAttribute("readOnly");
    <input type="hidden" name="serverid" value="$lonhost" />      this.document.client.elements.uname.removeAttribute("readOnly");
    <input type="hidden" name="interface" value="$env{'form.interface'}" />      this.document.client.elements.udom.removeAttribute("readOnly");
    <input type="hidden" name="uname" value="" />      return;
    <input type="hidden" name="upass0" value="" />  }
    <input type="hidden" name="upass1" value="" />  
    <input type="hidden" name="upass2" value="" />  // ]]>
    <input type="hidden" name="udom" value="" />  </script>
    <input type="hidden" name="imagesuppress"  value="" />  
    <input type="hidden" name="appletsuppress"  value="" />  ENDSCRIPT
    <input type="hidden" name="embedsuppress"  value="" />  
    <input type="hidden" name="fontenhance"  value="" />  # --------------------------------------------------- Print login screen header
    <input type="hidden" name="blackwhite"  value="" />  
    <input type="hidden" name="remember"  value="" />      my %add_entries = (
    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />         bgcolor      => "$mainbg",
    <input type="hidden" name="localres" value="$env{'form.localres'}" />         text         => "$font",
   </form>         link         => "$link",
 ENDSERVERFORM         vlink        => "$vlink",
     my $coursecatalog;         alink        => "$alink",
     if (($showcoursecat eq '') || ($showcoursecat)) {                 onload       => 'javascript:enableInput();',);
         $coursecatalog = &coursecatalog_link($lt{'catalog'});  
     }      $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
     if ($fullgraph) { $r->print(<<ENDTOP);         { 'redirect'       => [$expire,'/adm/roles'],
   <!-- The LON-CAPA Header -->   'add_entries' => \%add_entries,
   <tr>   'only_body'   => 1,}));
   
    <!-- Row 1 Columns 2-4 -->  # ----------------------------------------------------------------------- Texts
    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>  
   </tr>      my %lt=&Apache::lonlocal::texthash(
             'un'       => 'Username',
   <!-- The gray bar that starts the two table frames -->            'pw'       => 'Password',
   <tr>            'dom'      => 'Domain',
             'perc'     => 'percent',
    <!-- Row 2 Column 1 -->            'load'     => 'Server Load',
    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>            'userload' => 'User Load',
             'catalog'  => 'Course/Community Catalog',
    <!-- Row 2 Column 2 -->            'log'      => 'Log in',
    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>            'help'     => 'Log-in Help',
             'serv'     => 'Server',
    <!-- Row 2 Column 3 -->            'servadm'  => 'Server Administration',
    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>            'helpdesk' => 'Contact Helpdesk',
             'forgotpw' => 'Forgot password?',
    <!-- Row 2 Column 4 -->            'newuser'  => 'New User?',
    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>         );
   </tr>  # -------------------------------------------------- Change password field name
   <tr>  
          my $forgotpw = &forgotpwdisplay(%lt);
    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->      $forgotpw .= '<br />' if $forgotpw;
    <!-- Row 3 Column 1 -->      my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
    <td valign="top" height="60" align="left" bgcolor="$sidebg">      if ($loginhelp) {
     <table cellpadding="0" cellspacing="2" border="0">          $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
      <tr>      }
       <td>&nbsp;</td>  
       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>  # ---------------------------------------------------- Serve out DES JavaScript
      </tr>      {
      <tr>      my $jsh=Apache::File->new($include."/londes.js");
       <td>&nbsp;</td>      $r->print(<$jsh>);
       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>      }
      </tr>$coursecatalog  # ---------------------------------------------------------- Serve rest of page
      <tr>  
       <td colspan="2">&nbsp;</td>      $r->print(
      </tr>      '<div class="LC_Box"'
     </table>     .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
    </td>  );
    <!-- The shaded space between the two main columns -->  
    <!-- Row 3 Column 2 -->      $r->print(<<ENDSERVERFORM);
    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>  <form name="server" action="/adm/authenticate" method="post" target="_top">
      <input type="hidden" name="logtoken" value="$logtoken" />
    <!-- The right main column holding the large LON-CAPA logo-->     <input type="hidden" name="serverid" value="$lonhost" />
    <!-- Rows 3-4 Column 3 -->     <input type="hidden" name="uname" value="" />
    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">     <input type="hidden" name="upass0" value="" />
     <center>     <input type="hidden" name="upass1" value="" />
      <img src="$logo" alt="" />     <input type="hidden" name="upass2" value="" />
     </center>     <input type="hidden" name="udom" value="" />
    </td>     <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
      <input type="hidden" name="localres" value="$env{'form.localres'}" />
    <!-- Row 3 Column 4 -->    </form>
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>  ENDSERVERFORM
   </tr>      my $coursecatalog;
   <tr>      if (($showcoursecat eq '') || ($showcoursecat)) {
           $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
    <!-- The entry form -->      }
    <!-- Row 4 Column 1 -->      my $newuserlink;
    <td align="center" valign="middle" bgcolor="$sidebg">      if ($shownewuserlink) {
 ENDTOP          $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
 } else {      }
     $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);      my $logintitle =
 }          '<h2 class="LC_hcell"'
     $r->print('<form name="client" onsubmit="return(send())">');         .' style="background:'.$loginbox_header_bgcol.';'
     unless ($fullgraph) {         .' color:'.$loginbox_header_textcol.'">'
         $r->print(<<ENDACCESSOPTIONS);         .$lt{'log'}
 <h3>Select Accessibility Options</h3>         .'</h2>';
 <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />  
 <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />      my $noscript_warning='<noscript><span class="LC_warning"><b>'
 <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />                          .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
 <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />                          .'</b></span></noscript>';
 <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />      my $helpdeskscript;
 <input type="checkbox" name="remember" /> Remember these settings for next login<hr />      my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
 ENDACCESSOPTIONS                                         $authdomain,\$helpdeskscript,
 } else {                                         $showhelpdesk,\@possdoms);
     $r->print(<<ENDNOOPT);  
 <input type="hidden" name="imagesuppress"  value="" />      my $mobileargs;
 <input type="hidden" name="embedsuppress"  value="" />      if ($clientmobile) {
 <input type="hidden" name="appletsuppress"  value="" />          $mobileargs = 'autocapitalize="off" autocorrect="off"';
 <input type="hidden" name="fontenhance"  value="" />      }
 <input type="hidden" name="blackwhite"  value="" />      my $loginform=(<<LFORM);
 <input type="hidden" name="remember"  value="" />  <form name="client" action="" onsubmit="return(send())">
 ENDNOOPT    <input type="hidden" name="lextkey" value="$lextkey" />
 }    <input type="hidden" name="uextkey" value="$uextkey" />
     $r->print(<<ENDLOGIN);    <b><label for="uname">$lt{'un'}</label>:</b><br />
      <input type="hidden" name="lextkey" value="$lextkey">    <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
      <input type="hidden" name="uextkey" value="$uextkey">    <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
     <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
      <!-- Start the sub-table for text and input alignment -->    <b><label for="udom">$lt{'dom'}</label>:</b><br />
      <table border=0 cellspacing=0 cellpadding=0>    <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
       <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>    <input type="submit" value="$lt{'log'}" />
       <tr>  </form>
        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>  LFORM
        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>  
       </tr>      if ($showbanner) {
       <tr>          $r->print(<<HEADER);
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>  <!-- The LON-CAPA Header -->
        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>  <div style="background:$pgbg;margin:0;width:100%;">
       </tr>    <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
       <tr>  </div>
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>  HEADER
        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>      }
       </tr>      $r->print(<<ENDTOP);
       <tr>  <div style="float:left;margin-top:0;">
        <td bgcolor="$mainbg">&nbsp;</td>  <div class="LC_Box" style="background:$loginbox_bg;">
        <td bgcolor="$mainbg" valign="bottom" align="center">    $logintitle
         <br />    $loginform
         <input type="submit" value="$lt{'log'}" />    $noscript_warning
        </td>  </div>
       </tr>   
       <tr>  <div class="LC_Box" style="padding-top: 10px;">
        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">    $loginhelp
         $loginhelp    $forgotpw
         $forgotpw    $contactblock
        </td>    $newuserlink
       </tr>    $coursecatalog
      </table>  </div>
      <!-- End sub-table -->  </div>
     </form>  
 ENDLOGIN  <div>
     if ($fullgraph) {  ENDTOP
         my $helpdeskscript;      if ($showmainlogo) {
         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,          $r->print(' <img src="'.$logo.'" alt="" />'."\n");
                                   $version,$authdomain,\$helpdeskscript);      }
  $r->print(<<ENDDOCUMENT);  $r->print(<<ENDTOP);
    </td>  $announcements
   </div>
    <!-- Row 4 Column 2 -->  <hr style="clear:both;" />
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>  ENDTOP
       my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
    <!-- Row 4 Column 3 -->      $domainrow = <<"END";
 <td bgcolor="$mainbg">$announcements</td>        <tr>
          <td  align="left" valign="top">
    <!-- Row 4 Column 4 -->          <small><b>$lt{'dom'}:&nbsp;</b></small>
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>         </td>
   </tr>         <td  align="left" valign="top">
   <tr>          <small><tt>&nbsp;$domain</tt></small>
          </td>
    <!-- Row 5 Column 1 -->        </tr>
    <td bgcolor="$sidebg" valign="middle" align="left">  END
      <br />      $serverrow = <<"END";
      <table border=0 cellspacing=0 cellpadding=0>        <tr>
       <tr>         <td  align="left" valign="top">
        <td bgcolor="$sidebg" align="left" valign="top">          <small><b>$lt{'serv'}:&nbsp;</b></small>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>         </td>
        </td>         <td align="left" valign="top">
        <td bgcolor="$sidebg" align="left" valign="top">          <small><tt>&nbsp;$lonhost ($role)</tt></small>
         <small><tt>&nbsp;$domain</tt></small>         </td>
        </td>        </tr>
       </tr>  END
       <tr>      if ($loadlim) {
        <td bgcolor="$sidebg" align="left" valign="top">          $loadrow = <<"END";
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>        <tr>
        </td>         <td align="left" valign="top">
        <td bgcolor="$sidebg" align="left" valign="top">          <small><b>$lt{'load'}:&nbsp;</b></small>
         <small><tt>&nbsp;$lonhost ($role)</tt></small>         </td>
        </td>         <td align="left" valign="top">
       </tr>          <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
       <tr>         </td>
        <td bgcolor="$sidebg" align="left" valign="top">        </tr>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>  END
        </td>      }
        <td bgcolor="$sidebg" align="left" valign="top">      if ($uloadlim) {
         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>          $userloadrow = <<"END";
        </td>        <tr>
       </tr>         <td align="left" valign="top">
       <tr>          <small><b>$lt{'userload'}:&nbsp;</b></small>
        <td bgcolor="$sidebg" align="left" valign="top">         </td>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>         <td align="left" valign="top">
        </td>          <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
        <td bgcolor="$sidebg" align="left" valign="top">         </td>
         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>        </tr>
        </td>  END
       </tr>      }
      </table>      if (($version ne '') && ($version ne '<!-- VERSION -->')) {
      <br />          $versionrow = <<"END";
     $contactblock        <tr>
    </td>         <td colspan="2" align="left">
           <small>$version</small>
    <!-- Row 5 Column 2 -->         </td>
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>        </tr>
   END
    <!-- Row 5 Column 3 -->      }
    <td width="100%" valign="bottom" bgcolor="$mainbg">  
 $domainlogo      $r->print(<<ENDDOCUMENT);
 </td>      <div style="float: left;">
        <table border="0" cellspacing="0" cellpadding="0">
    <!-- Row 5 Column 4 -->  $domainrow
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>  $serverrow
   </tr>  $loadrow    
   <tr>  $userloadrow
   $versionrow
    <!-- Row 6 Column 1 -->       </table>
    <td bgcolor="$sidebg">&nbsp;</td>      </div>
       <div style="float: right;">
    <!-- Row 6 Column 2 -->      $domainlogo
    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>      </div>
       <br style="clear:both;" />
    <!-- Row 6 Column 3 -->   </div>
    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>  
   <script type="text/javascript">
    <!-- Row 6 Column 4 -->  // <![CDATA[
    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>  // the if prevents the script error if the browser can not handle this
   </tr>  if ( document.client.uname ) { document.client.uname.focus(); }
  </table>  // ]]>
   </script>
 <script type="text/javascript">  $helpdeskscript
 // the if prevents the script error if the browser can not handle this  
 if ( document.client.uname ) { document.client.uname.focus(); }  ENDDOCUMENT
 </script>      my %endargs = ( 'noredirectlink' => 1, );
 $helpdeskscript      $r->print(&Apache::loncommon::end_page(\%endargs));
       return OK;
 ENDDOCUMENT  }
 }  
     $r->print('</body></html>');  sub check_loginvia {
     return OK;      my ($domain,$lonhost) = @_;
 }      if ($domain eq '' || $lonhost eq '') {
           return;
 sub contactdisplay {      }
     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;      my %domconfhash = &Apache::loncommon::get_domainconf($domain);
     my $contactblock;      my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
     my $showhelpdesk = 0;      my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};      my $output;
     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {      if ($loginvia ne '') {
         $showhelpdesk = 1;          my $noredirect;
     }          my $ip = $ENV{'REMOTE_ADDR'};
     if ($servadm && $showadminmail) {          if ($ip eq '127.0.0.1') {
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.              $noredirect = 1;
                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';          } else {
     }              if ($loginvia_exempt ne '') {
     if ($showhelpdesk) {                  my @exempt = split(',',$loginvia_exempt);
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';                  if (grep(/^\Q$ip\E$/,@exempt)) {
         my $thisurl = &escape('/adm/login');                      $noredirect = 1;
         $$helpdeskscript = <<"ENDSCRIPT";                  }
 <script type="text/javascript">              }
 function helpdesk() {          }
     var codedom = document.client.udom.value;          unless ($noredirect) {
     if (codedom == '') {              my ($newhost,$path);
         codedom = "$authdomain";              if ($loginvia =~ /:/) {
     }                  ($newhost,$path) = split(':',$loginvia);
     var querystr = "origurl=$thisurl&codedom="+codedom;              } else {
     document.location.href = "/adm/helpdesk?"+querystr;                  $newhost = $loginvia;
     return;              }
 }              if ($newhost ne $lonhost) {
 </script>                  if (&Apache::lonnet::hostname($newhost) ne '') {
 ENDSCRIPT                      $output = &redirect_page($newhost,$path);
     }                  }
     $contactblock .= <<"ENDBLOCK";              }
      &nbsp;&nbsp;&nbsp;$version          }
 ENDBLOCK      }
     return $contactblock;      return $output;
 }  }
   
 sub forgotpwdisplay {  sub redirect_page {
     my (%lt) = @_;      my ($desthost,$path) = @_;
     my $prompt_for_resetpw = 1;       my $protocol = $Apache::lonnet::protocol{$desthost};
     if ($prompt_for_resetpw) {      $protocol = 'http' if ($protocol ne 'https');
         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';      unless ($path =~ m{^/}) {
     }          $path = '/'.$path;
     return;      }
 }      my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
       if ($env{'form.firsturl'} ne '') {
 sub loginhelpdisplay {          $url .='?firsturl='.$env{'form.firsturl'};
     my (%lt) = @_;      }
     my $login_help = 1;      my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
     if ($login_help) {                                                      {'redirect' => [0,$url],});
         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';      my $end_page   = &Apache::loncommon::end_page();
     }      return $start_page.$end_page;
     return;  }
 }  
   sub contactdisplay {
 sub coursecatalog_link {      my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
     my ($linkname) = @_;          $possdoms) = @_;
     return <<"END";      my $contactblock;
      <tr>      my $origmail;
       <td>&nbsp;</td>      if (ref($possdoms) eq 'ARRAY') {
       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>          if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
      </tr>              $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
 END          }
 }      }
       my $requestmail =
 1;          &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
 __END__                                                   $authdomain,$origmail);
       unless ($showhelpdesk eq '0') {
           if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
               $showhelpdesk = 1;
           } else {
               $showhelpdesk = 0;
           }
       }
       if ($servadm && $showadminmail) {
           $contactblock .= $$lt{'servadm'}.':<br />'.
                            '<tt>'.$servadm.'</tt><br />';
       }
       if ($showhelpdesk) {
           $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
           my $thisurl = &escape('/adm/login');
           $$helpdeskscript = <<"ENDSCRIPT";
   <script type="text/javascript">
   // <![CDATA[
   function helpdesk() {
       var possdom = document.client.udom.value;
       var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),'');
       if (codedom == '') {
           codedom = "$authdomain";
       }
       var querystr = "origurl=$thisurl&codedom="+codedom;
       document.location.href = "/adm/helpdesk?"+querystr;
       return;
   }
   // ]]>
   </script>
   ENDSCRIPT
       }
       return $contactblock;
   }
   
   sub forgotpwdisplay {
       my (%lt) = @_;
       my $prompt_for_resetpw = 1;
       if ($prompt_for_resetpw) {
           return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
       }
       return;
   }
   
   sub coursecatalog_link {
       my ($linkname) = @_;
       return <<"END";
         <a href="/adm/coursecatalog">$linkname</a>
   END
   }
   
   sub newuser_link {
       my ($linkname) = @_;
       return '<a href="/adm/createaccount">'.$linkname.'</a>';
   }
   
   1;
   __END__
Removed from v.1.94.2.1  
changed lines
  Added in v.1.160

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