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Diff for /loncom/auth/lonlogin.pm between versions 1.150 and 1.161

version 1.150, 2012/04/11 11:40:07 version 1.161, 2015/03/03 22:06:55
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 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'}),        $ENV{'REDIRECT_QUERY_STRING'}),
  ['interface','username','domain','firsturl','localpath','localres',   ['interface','username','domain','firsturl','localpath','localres',
   'token','role','symb']);    'token','role','symb','iptoken']);
     if (!defined($env{'form.firsturl'})) {      if (!defined($env{'form.firsturl'})) {
         &Apache::lonacc::get_posted_cgi($r,['firsturl']);          &Apache::lonacc::get_posted_cgi($r,['firsturl']);
     }      }
   
 # -- check if they are a migrating user  # -- check if they are a migrating user
     if (defined($env{'form.token'})) {      if (defined($env{'form.token'})) {
  return &Apache::migrateuser::handler($r);   return &Apache::migrateuser::handler($r);
     }      }
   
     &Apache::loncommon::no_cache($r);      &Apache::loncommon::no_cache($r);
     &Apache::lonlocal::get_language_handle($r);      &Apache::lonlocal::get_language_handle($r);
     &Apache::loncommon::content_type($r,'text/html');      &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;      $r->send_http_header;
     return OK if $r->header_only;      return OK if $r->header_only;
   
   
 # Are we re-routing?  # Are we re-routing?
     my $londocroot = $r->dir_config('lonDocRoot');       my $londocroot = $r->dir_config('lonDocRoot');
     if (-e "$londocroot/lon-status/reroute.txt") {      if (-e "$londocroot/lon-status/reroute.txt") {
  &Apache::lonauth::reroute($r);   &Apache::lonauth::reroute($r);
  return OK;   return OK;
     }      }
   
     $env{'form.firsturl'} =~ s/(`)/'/g;      $env{'form.firsturl'} =~ s/(`)/'/g;
   
 # -------------------------------- Prevent users from attempting to login twice  # -------------------------------- Prevent users from attempting to login twice
     my $handle = &Apache::lonnet::check_for_valid_session($r);      my $handle = &Apache::lonnet::check_for_valid_session($r);
     if ($handle ne '') {      if ($handle ne '') {
         my $lonidsdir=$r->dir_config('lonIDsDir');          my $lonidsdir=$r->dir_config('lonIDsDir');
         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($r->dir_config('lonIDsDir')."/$handle.id");
         } else {          } else {
 # Indeed, a valid token is found  # Indeed, a valid token is found
             &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);              &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();
             my $dest = '/adm/roles';              my $dest = '/adm/roles';
             if ($env{'form.firsturl'} ne '') {              if ($env{'form.firsturl'} ne '') {
                 $dest = $env{'form.firsturl'};                   $dest = $env{'form.firsturl'};
             }              }
     $r->print(      $r->print(
                   $start_page                    $start_page
                  .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'                   .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
                  .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',                   .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
                   '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'                    '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
                  .$end_page                   .$end_page
                  );                   );
             return OK;              return OK;
         }          }
     }      }
   
 # ---------------------------------------------------- No valid token, continue  # ---------------------------------------------------- No valid token, continue
   
  # ---------------------------- Not possible to really login to domain "public"  # ---------------------------- Not possible to really login to domain "public"
     if ($env{'form.domain'} eq 'public') {      if ($env{'form.domain'} eq 'public') {
  $env{'form.domain'}='';   $env{'form.domain'}='';
  $env{'form.username'}='';   $env{'form.username'}='';
     }      }
 # ----------------------------------------------------------- Process Interface  
     $env{'form.interface'}=~s/\W//g;  # ------ Is this page requested because /adm/migrateuser detected an IP change?
       my %sessiondata;
     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};      if ($env{'form.iptoken'}) {
           %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
     my $iconpath=           my $delete = &Apache::lonnet::tmpdel($env{'form.token'});
  &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));      }
   # ----------------------------------------------------------- Process Interface
     my $lonhost = $r->dir_config('lonHostID');      $env{'form.interface'}=~s/\W//g;
     my $domain = &Apache::lonnet::default_login_domain();  
     if ($lonhost ne '') {      (undef,undef,undef,undef,undef,undef,my $clientmobile) =
         my $redirect = &check_loginvia($domain,$lonhost);          &Apache::loncommon::decode_user_agent();
         if ($redirect) {  
             $r->print($redirect);      my $iconpath=
             return OK;   &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
         }   
     }      my $lonhost = $r->dir_config('lonHostID');
       my $domain = &Apache::lonnet::default_login_domain();
     if (($env{'form.domain'}) &&       my $defdom = $domain;
  (&Apache::lonnet::domain($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 $uloadlim= $r->dir_config('lonUserLoadLim');                  return OK;
     my $servadm = $r->dir_config('lonAdmEMail');              }
     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 $version = $r->dir_config('lonVersion');
     my ($loadpercent,$userloadpercent);      my $host_name = &Apache::lonnet::hostname($lonhost);
     if ($loadlim) {  
         $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);  # --------------------------------------------- Default values for login fields
     }     
     if ($uloadlim) {      my ($authusername,$authdomain);
         $userloadpercent=&Apache::lonnet::userload();      if ($sessiondata{'username'}) {
     }          $authusername=$sessiondata{'username'};
       } else {
     my $firsturl=          $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});          $authusername=($env{'form.username'}?$env{'form.username'}:'');
       }
 # ----------------------------------------------------------- Get announcements      if ($sessiondata{'domain'}) {
     my $announcements=&Apache::lonnet::getannounce();          $authdomain=$sessiondata{'domain'};
 # -------------------------------------------------------- Set login parameters      } else {
           $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
     my @hexstr=('0','1','2','3','4','5','6','7',          $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
                 '8','9','a','b','c','d','e','f');      }
     my $lkey='';  
     for (0..7) {  # ---------------------------------------------------------- Determine own load
         $lkey.=$hexstr[rand(15)];      my $loadavg;
     }      {
    my $loadfile=Apache::File->new('/proc/loadavg');
     my $ukey='';   $loadavg=<$loadfile>;
     for (0..7) {      }
         $ukey.=$hexstr[rand(15)];      $loadavg =~ s/\s.*//g;
     }  
       my ($loadpercent,$userloadpercent);
     my $lextkey=hex($lkey);      if ($loadlim) {
     if ($lextkey>2147483647) { $lextkey-=4294967296; }          $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
       }
     my $uextkey=hex($ukey);      if ($uloadlim) {
     if ($uextkey>2147483647) { $uextkey-=4294967296; }          $userloadpercent=&Apache::lonnet::userload();
       }
 # -------------------------------------------------------- Store away log token  
     my $tokenextras;      my $firsturl=
     if ($env{'form.role'}) {      ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
         $tokenextras = '&role='.&escape($env{'form.role'});  
     }  # ----------------------------------------------------------- Get announcements
     if ($env{'form.symb'}) {      my $announcements=&Apache::lonnet::getannounce();
         if (!$tokenextras) {  # -------------------------------------------------------- Set login parameters
             $tokenextras = '&';  
         }      my @hexstr=('0','1','2','3','4','5','6','7',
         $tokenextras .= '&symb='.&escape($env{'form.symb'});                  '8','9','a','b','c','d','e','f');
     }      my $lkey='';
     my $logtoken=Apache::lonnet::reply(      for (0..7) {
        'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,          $lkey.=$hexstr[rand(15)];
        $lonhost);      }
   
 # -- If we cannot talk to ourselves, or hostID does not map to a hostname      my $ukey='';
 #    we are in serious trouble      for (0..7) {
           $ukey.=$hexstr[rand(15)];
     if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {      }
         if ($logtoken eq 'no_such_host') {  
             &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');      my $lextkey=hex($lkey);
         }      if ($lextkey>2147483647) { $lextkey-=4294967296; }
         my $spares='';  
  my $last;      my $uextkey=hex($ukey);
         foreach my $hostid (sort      if ($uextkey>2147483647) { $uextkey-=4294967296; }
     {  
  &Apache::lonnet::hostname($a) cmp  # -------------------------------------------------------- Store away log token
     &Apache::lonnet::hostname($b);      my $tokenextras;
     }      if ($env{'form.role'}) {
     keys(%Apache::lonnet::spareid)) {          $tokenextras = '&role='.&escape($env{'form.role'});
             next if ($hostid eq $lonhost);      }
     my $hostname = &Apache::lonnet::hostname($hostid);      if ($env{'form.symb'}) {
     next if (($last eq $hostname) || ($hostname eq ''));          if (!$tokenextras) {
             $spares.='<br /><font size="+1"><a href="http://'.              $tokenextras = '&';
                 $hostname.          }
                 '/adm/login?domain='.$authdomain.'">'.          $tokenextras .= '&symb='.&escape($env{'form.symb'});
                 $hostname.'</a>'.      }
                 ' '.&mt('(preferred)').'</font>'.$/;      my $logtoken=Apache::lonnet::reply(
     $last=$hostname;         'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
         }         $lonhost);
         if ($spares) {  
             $spares.= '<br />';  # -- If we cannot talk to ourselves, or hostID does not map to a hostname
         }  #    we are in serious trouble
 my %all_hostnames = &Apache::lonnet::all_hostnames();  
 foreach my $hostid (sort      if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
     {          if ($logtoken eq 'no_such_host') {
  &Apache::lonnet::hostname($a) cmp              &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
     &Apache::lonnet::hostname($b);          }
     }          my $spares='';
     keys(%all_hostnames)) {   my $last;
     next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});          foreach my $hostid (sort
     my $hostname = &Apache::lonnet::hostname($hostid);      {
     next if (($last eq $hostname) || ($hostname eq ''));   &Apache::lonnet::hostname($a) cmp
     $spares.='<br /><a href="http://'.      &Apache::lonnet::hostname($b);
  $hostname.      }
  '/adm/login?domain='.$authdomain.'">'.      keys(%Apache::lonnet::spareid)) {
  $hostname.'</a>';              next if ($hostid eq $lonhost);
     $last=$hostname;      my $hostname = &Apache::lonnet::hostname($hostid);
 }      next if (($last eq $hostname) || ($hostname eq ''));
 $r->print(              $spares.='<br /><font size="+1"><a href="http://'.
    '<html>'                  $hostname.
   .'<head><title>'                  '/adm/login?domain='.$authdomain.'">'.
   .&mt('The LearningOnline Network with CAPA')                  $hostname.'</a>'.
   .'</title></head>'                  ' '.&mt('(preferred)').'</font>'.$/;
   .'<body bgcolor="#FFFFFF">'      $last=$hostname;
   .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'          }
   .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'          if ($spares) {
   .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');              $spares.= '<br />';
     if ($spares) {          }
         $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')          my %all_hostnames = &Apache::lonnet::all_hostnames();
                  .'</p>'          foreach my $hostid (sort
                  .$spares);      {
     }   &Apache::lonnet::hostname($a) cmp
     $r->print('</body>'      &Apache::lonnet::hostname($b);
   .'</html>'      }
     );      keys(%all_hostnames)) {
 return OK;              next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
 }              my $hostname = &Apache::lonnet::hostname($hostid);
               next if (($last eq $hostname) || ($hostname eq ''));
 # ----------------------------------------------- Apparently we are in business              $spares.='<br /><a href="http://'.
 $servadm=~s/\,/\<br \/\>/g;               $hostname.
                '/adm/login?domain='.$authdomain.'">'.
 # ----------------------------------------------------------- Front page design               $hostname.'</a>';
 my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);              $last=$hostname;
 my $font=&Apache::loncommon::designparm('login.font',$domain);           }
 my $link=&Apache::loncommon::designparm('login.link',$domain);           $r->print(
 my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);     '<html>'
 my $alink=&Apache::loncommon::designparm('login.alink',$domain);    .'<head><title>'
 my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);    .&mt('The LearningOnline Network with CAPA')
 my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);    .'</title></head>'
 my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);    .'<body bgcolor="#FFFFFF">'
 my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);    .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
 my $logo=&Apache::loncommon::designparm('login.logo',$domain);    .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
 my $img=&Apache::loncommon::designparm('login.img',$domain);    .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
 my $domainlogo=&Apache::loncommon::domainlogo($domain);          if ($spares) {
 my $showbanner = 1;              $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
 my $showmainlogo = 1;                       .'</p>'
 if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {                       .$spares);
     $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);          }
 }          $r->print('</body>'
 if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {                   .'</html>'
     $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);          );
 }          return OK;
 my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);      }
 my $showcoursecat =  
 &Apache::loncommon::designparm('login.coursecatalog',$domain);  # ----------------------------------------------- Apparently we are in business
 my $shownewuserlink =       $servadm=~s/\,/\<br \/\>/g;
 &Apache::loncommon::designparm('login.newuser',$domain);  
 my $now=time;  # ----------------------------------------------------------- Front page design
 my $js = (<<ENDSCRIPT);      my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
       my $font=&Apache::loncommon::designparm('login.font',$domain);
 <script type="text/javascript" language="JavaScript">      my $link=&Apache::loncommon::designparm('login.link',$domain);
 // <![CDATA[      my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
 function send()      my $alink=&Apache::loncommon::designparm('login.alink',$domain);
 {      my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
 this.document.server.elements.uname.value      my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
 =this.document.client.elements.uname.value;      my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
       my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
 this.document.server.elements.udom.value      my $logo=&Apache::loncommon::designparm('login.logo',$domain);
 =this.document.client.elements.udom.value;      my $img=&Apache::loncommon::designparm('login.img',$domain);
       my $domainlogo=&Apache::loncommon::domainlogo($domain);
 uextkey=this.document.client.elements.uextkey.value;      my $showbanner = 1;
 lextkey=this.document.client.elements.lextkey.value;      my $showmainlogo = 1;
 initkeys();      if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
           $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
 this.document.server.elements.upass0.value      }
     =crypted(this.document.client.elements.upass$now.value.substr(0,15));      if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
 this.document.server.elements.upass1.value          $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
     =crypted(this.document.client.elements.upass$now.value.substr(15,15));      }
 this.document.server.elements.upass2.value      my $showadminmail;
     =crypted(this.document.client.elements.upass$now.value.substr(30,15));      my @possdoms = &Apache::lonnet::current_machine_domains();
       if (grep(/^\Q$domain\E$/,@possdoms)) {
 this.document.client.elements.uname.value='';          $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
 this.document.client.elements.upass$now.value='';      }
       my $showcoursecat =
 this.document.server.submit();          &Apache::loncommon::designparm('login.coursecatalog',$domain);
 return false;      my $shownewuserlink =
 }          &Apache::loncommon::designparm('login.newuser',$domain);
       my $showhelpdesk =
 function enableInput() {          &Apache::loncommon::designparm('login.helpdesk',$domain);
     this.document.client.elements.upass$now.removeAttribute("readOnly");      my $now=time;
     this.document.client.elements.uname.removeAttribute("readOnly");      my $js = (<<ENDSCRIPT);
     this.document.client.elements.udom.removeAttribute("readOnly");  
     return;  <script type="text/javascript" language="JavaScript">
 }  // <![CDATA[
   function send()
 // ]]>  {
 </script>  this.document.server.elements.uname.value
   =this.document.client.elements.uname.value;
 ENDSCRIPT  
   this.document.server.elements.udom.value
 # --------------------------------------------------- Print login screen header  =this.document.client.elements.udom.value;
   
 my %add_entries = (  uextkey=this.document.client.elements.uextkey.value;
        bgcolor      => "$mainbg",  lextkey=this.document.client.elements.lextkey.value;
        text         => "$font",  initkeys();
        link         => "$link",  
        vlink        => "$vlink",  this.document.server.elements.upass0.value
        alink        => "$alink",      =this.document.client.elements.upass$now.value.substr(0,15);
                onload       => 'javascript:enableInput();',);  this.document.server.elements.upass1.value
       =this.document.client.elements.upass$now.value.substr(15,15);
 $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,  this.document.server.elements.upass2.value
        { 'redirect'       => [$expire,'/adm/roles'],       =this.document.client.elements.upass$now.value.substr(30,15);
  'add_entries' => \%add_entries,  
  'only_body'   => 1,}));  if(this.document.server.action.substr(0,5) === 'http:'){
       for (var idx in [1,2,3]){
 # ----------------------------------------------------------------------- Texts          this.document.server.elements['upass' + idx].value =
               crypted(this.document.server.elements['upass' + idx].value);
 my %lt=&Apache::lonlocal::texthash(      }
           'un'       => 'Username',  }
           'pw'       => 'Password',  
           'dom'      => 'Domain',  this.document.client.elements.uname.value='';
           'perc'     => 'percent',  this.document.client.elements.upass$now.value='';
           'load'     => 'Server Load',  
           'userload' => 'User Load',  this.document.server.submit();
           'catalog'  => 'Course/Community Catalog',  return false;
           'log'      => 'Log in',  }
           'help'     => 'Log-in Help',  
           'serv'     => 'Server',  function enableInput() {
           'servadm'  => 'Server Administration',      this.document.client.elements.upass$now.removeAttribute("readOnly");
           'helpdesk' => 'Contact Helpdesk',      this.document.client.elements.uname.removeAttribute("readOnly");
           'forgotpw' => 'Forgot password?',      this.document.client.elements.udom.removeAttribute("readOnly");
           'newuser'  => 'New User?',      return;
        );  }
 # -------------------------------------------------- Change password field name  
   // ]]>
 my $forgotpw = &forgotpwdisplay(%lt);  </script>
 $forgotpw .= '<br />' if $forgotpw;  
 my $loginhelp = &loginhelpdisplay($authdomain,%lt);  ENDSCRIPT
 $loginhelp .= '<br />' if $loginhelp;  
   # --------------------------------------------------- Print login screen header
 # ---------------------------------------------------- Serve out DES JavaScript  
 {      my %add_entries = (
 my $jsh=Apache::File->new($include."/londes.js");         bgcolor      => "$mainbg",
 $r->print(<$jsh>);         text         => "$font",
 }         link         => "$link",
 # ---------------------------------------------------------- Serve rest of page         vlink        => "$vlink",
          alink        => "$alink",
 $r->print(                 onload       => 'javascript:enableInput();',);
     '<div class="LC_Box"'  
    .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'      my %defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
 );      my $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost};
       my $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost};
 #      if ($headextra) {
 #  If the loadbalancing yielded just http:// because perhaps there's no loadbalancing?          my $omitextra;
 #  then just us a relative link to authenticate:          if ($headextra_exempt ne '') {
 #              my @exempt = split(',',$headextra_exempt);
               my $ip = $ENV{'REMOTE_ADDR'};
 $r->print(<<ENDSERVERFORM);              if (grep(/^\Q$ip\E$/,@exempt)) {
 <form name="server" action="/adm/authenticate" method="post" target="_top">                  $omitextra = 1;
    <input type="hidden" name="logtoken" value="$logtoken" />              }
    <input type="hidden" name="serverid" value="$lonhost" />          }
    <input type="hidden" name="uname" value="" />          unless ($omitextra) {
    <input type="hidden" name="upass0" value="" />              my $confname = $defdom.'-domainconfig';
    <input type="hidden" name="upass1" value="" />              if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost/\E}) {
    <input type="hidden" name="upass2" value="" />                  my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
    <input type="hidden" name="udom" value="" />                  unless ($extra eq '-1') {
    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />                      $js .= "\n".$extra."\n";
    <input type="hidden" name="localres" value="$env{'form.localres'}" />                  }
   </form>              }
 ENDSERVERFORM          }
 my $coursecatalog;      }
 if (($showcoursecat eq '') || ($showcoursecat)) {  
     $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';      $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
 }         { 'redirect'       => [$expire,'/adm/roles'],
 my $newuserlink;   'add_entries' => \%add_entries,
 if ($shownewuserlink) {   'only_body'   => 1,}));
     $newuserlink = &newuser_link($lt{'newuser'}).'<br />';  
 }  # ----------------------------------------------------------------------- Texts
 my $logintitle =  
     '<h2 class="LC_hcell"'      my %lt=&Apache::lonlocal::texthash(
    .' style="background:'.$loginbox_header_bgcol.';'            'un'       => 'Username',
    .' color:'.$loginbox_header_textcol.'">'            'pw'       => 'Password',
    .$lt{'log'}            'dom'      => 'Domain',
    .'</h2>';            'perc'     => 'percent',
             'load'     => 'Server Load',
 my $noscript_warning='<noscript><span class="LC_warning"><b>'            'userload' => 'User Load',
                      .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')            'catalog'  => 'Course/Community Catalog',
                     .'</b></span></noscript>';            'log'      => 'Log in',
 my $helpdeskscript;            'help'     => 'Log-in Help',
 my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,            'serv'     => 'Server',
                                    $authdomain,\$helpdeskscript);            'servadm'  => 'Server Administration',
             'helpdesk' => 'Contact Helpdesk',
 my $loginform=(<<LFORM);            'forgotpw' => 'Forgot password?',
 <form name="client" action="" onsubmit="return(send())">            'newuser'  => 'New User?',
   <input type="hidden" name="lextkey" value="$lextkey" />         );
   <input type="hidden" name="uextkey" value="$uextkey" />  # -------------------------------------------------- Change password field name
   <b><label for="uname">$lt{'un'}</label>:</b><br />  
   <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" /><br />      my $forgotpw = &forgotpwdisplay(%lt);
   <b><label for="upass$now">$lt{'pw'}</label>:</b><br />      $forgotpw .= '<br />' if $forgotpw;
   <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />      my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
   <b><label for="udom">$lt{'dom'}</label>:</b><br />      if ($loginhelp) {
   <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" /><br />          $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
   <input type="submit" value="$lt{'log'}" />      }
 </form>  
 LFORM  # ---------------------------------------------------- Serve out DES JavaScript
       {
     if ($showbanner) {      my $jsh=Apache::File->new($include."/londes.js");
         $r->print(<<HEADER);      $r->print(<$jsh>);
 <!-- The LON-CAPA Header -->      }
 <div style="background:$pgbg;margin:0;width:100%;">  # ---------------------------------------------------------- Serve rest of page
   <img src="$img" border="0" alt="The Learning Online Network with CAPA" />  
 </div>      $r->print(
 HEADER      '<div class="LC_Box"'
     }     .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
     $r->print(<<ENDTOP);  );
 <div style="float:left;margin-top:0;">  
 <div class="LC_Box" style="background:$loginbox_bg;">      $r->print(<<ENDSERVERFORM);
   $logintitle  <form name="server" action="/adm/authenticate" method="post" target="_top">
   $loginform     <input type="hidden" name="logtoken" value="$logtoken" />
   $noscript_warning     <input type="hidden" name="serverid" value="$lonhost" />
 </div>     <input type="hidden" name="uname" value="" />
        <input type="hidden" name="upass0" value="" />
 <div class="LC_Box" style="padding-top: 10px;">     <input type="hidden" name="upass1" value="" />
   $loginhelp     <input type="hidden" name="upass2" value="" />
   $forgotpw     <input type="hidden" name="udom" value="" />
   $contactblock     <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
   $newuserlink     <input type="hidden" name="localres" value="$env{'form.localres'}" />
   $coursecatalog    </form>
 </div>  ENDSERVERFORM
 </div>      my $coursecatalog;
       if (($showcoursecat eq '') || ($showcoursecat)) {
 <div>          $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
 ENDTOP      }
     if ($showmainlogo) {      my $newuserlink;
         $r->print(' <img src="'.$logo.'" alt="" />'."\n");      if ($shownewuserlink) {
     }          $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
 $r->print(<<ENDTOP);      }
 $announcements      my $logintitle =
 </div>          '<h2 class="LC_hcell"'
 <hr style="clear:both;" />         .' style="background:'.$loginbox_header_bgcol.';'
 ENDTOP         .' color:'.$loginbox_header_textcol.'">'
     my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);         .$lt{'log'}
     $domainrow = <<"END";         .'</h2>';
       <tr>  
        <td  align="left" valign="top">      my $noscript_warning='<noscript><span class="LC_warning"><b>'
         <small><b>$lt{'dom'}:&nbsp;</b></small>                          .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
        </td>                          .'</b></span></noscript>';
        <td  align="left" valign="top">      my $helpdeskscript;
         <small><tt>&nbsp;$domain</tt></small>      my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
        </td>                                         $authdomain,\$helpdeskscript,
       </tr>                                         $showhelpdesk,\@possdoms);
 END  
     $serverrow = <<"END";      my $mobileargs;
       <tr>      if ($clientmobile) {
        <td  align="left" valign="top">          $mobileargs = 'autocapitalize="off" autocorrect="off"';
         <small><b>$lt{'serv'}:&nbsp;</b></small>      }
        </td>      my $loginform=(<<LFORM);
        <td align="left" valign="top">  <form name="client" action="" onsubmit="return(send())">
         <small><tt>&nbsp;$lonhost ($role)</tt></small>    <input type="hidden" name="lextkey" value="$lextkey" />
        </td>    <input type="hidden" name="uextkey" value="$uextkey" />
       </tr>    <b><label for="uname">$lt{'un'}</label>:</b><br />
 END    <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
     if ($loadlim) {    <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
         $loadrow = <<"END";    <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
       <tr>    <b><label for="udom">$lt{'dom'}</label>:</b><br />
        <td align="left" valign="top">    <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
         <small><b>$lt{'load'}:&nbsp;</b></small>    <input type="submit" value="$lt{'log'}" />
        </td>  </form>
        <td align="left" valign="top">  LFORM
         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>  
        </td>      if ($showbanner) {
       </tr>          $r->print(<<HEADER);
 END  <!-- The LON-CAPA Header -->
     }  <div style="background:$pgbg;margin:0;width:100%;">
     if ($uloadlim) {    <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
         $userloadrow = <<"END";  </div>
       <tr>  HEADER
        <td align="left" valign="top">      }
         <small><b>$lt{'userload'}:&nbsp;</b></small>      $r->print(<<ENDTOP);
        </td>  <div style="float:left;margin-top:0;">
        <td align="left" valign="top">  <div class="LC_Box" style="background:$loginbox_bg;">
         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>    $logintitle
        </td>    $loginform
       </tr>    $noscript_warning
 END  </div>
     }   
     if (($version ne '') && ($version ne '<!-- VERSION -->')) {  <div class="LC_Box" style="padding-top: 10px;">
         $versionrow = <<"END";    $loginhelp
       <tr>    $forgotpw
        <td colspan="2" align="left">    $contactblock
         <small>$version</small>    $newuserlink
        </td>    $coursecatalog
       </tr>  </div>
 END  </div>
     }  
   <div>
 $r->print(<<ENDDOCUMENT);  ENDTOP
     <div style="float: left;">      if ($showmainlogo) {
      <table border="0" cellspacing="0" cellpadding="0">          $r->print(' <img src="'.$logo.'" alt="" />'."\n");
 $domainrow      }
 $serverrow  $r->print(<<ENDTOP);
 $loadrow      $announcements
 $userloadrow  </div>
 $versionrow  <hr style="clear:both;" />
      </table>  ENDTOP
     </div>      my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
     <div style="float: right;">      $domainrow = <<"END";
     $domainlogo        <tr>
     </div>         <td  align="left" valign="top">
     <br style="clear:both;" />          <small><b>$lt{'dom'}:&nbsp;</b></small>
  </div>         </td>
          <td  align="left" valign="top">
 <script type="text/javascript">          <small><tt>&nbsp;$domain</tt></small>
 // <![CDATA[         </td>
 // the if prevents the script error if the browser can not handle this        </tr>
 if ( document.client.uname ) { document.client.uname.focus(); }  END
 // ]]>      $serverrow = <<"END";
 </script>        <tr>
 $helpdeskscript         <td  align="left" valign="top">
           <small><b>$lt{'serv'}:&nbsp;</b></small>
 ENDDOCUMENT         </td>
     my %endargs = ( 'noredirectlink' => 1, );         <td align="left" valign="top">
     $r->print(&Apache::loncommon::end_page(\%endargs));          <small><tt>&nbsp;$lonhost ($role)</tt></small>
     return OK;         </td>
 }        </tr>
   END
 sub check_loginvia {      if ($loadlim) {
     my ($domain,$lonhost) = @_;          $loadrow = <<"END";
     if ($domain eq '' || $lonhost eq '') {        <tr>
         return;         <td align="left" valign="top">
     }          <small><b>$lt{'load'}:&nbsp;</b></small>
     my %domconfhash = &Apache::loncommon::get_domainconf($domain);         </td>
     my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};         <td align="left" valign="top">
     my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};          <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
     my $output;         </td>
     if ($loginvia ne '') {        </tr>
         my $noredirect;  END
         my $ip = $ENV{'REMOTE_ADDR'};      }
         if ($ip eq '127.0.0.1') {      if ($uloadlim) {
             $noredirect = 1;          $userloadrow = <<"END";
         } else {        <tr>
             if ($loginvia_exempt ne '') {         <td align="left" valign="top">
                 my @exempt = split(',',$loginvia_exempt);          <small><b>$lt{'userload'}:&nbsp;</b></small>
                 if (grep(/^\Q$ip\E$/,@exempt)) {         </td>
                     $noredirect = 1;         <td align="left" valign="top">
                 }          <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
             }         </td>
         }        </tr>
         unless ($noredirect) {  END
             my ($newhost,$path);      }
             if ($loginvia =~ /:/) {      if (($version ne '') && ($version ne '<!-- VERSION -->')) {
                 ($newhost,$path) = split(':',$loginvia);          $versionrow = <<"END";
             } else {        <tr>
                 $newhost = $loginvia;         <td colspan="2" align="left">
             }          <small>$version</small>
             if ($newhost ne $lonhost) {         </td>
                 if (&Apache::lonnet::hostname($newhost) ne '') {        </tr>
                     $output = &redirect_page($newhost,$path);  END
                 }      }
             }  
         }      $r->print(<<ENDDOCUMENT);
     }      <div style="float: left;">
     return $output;       <table border="0" cellspacing="0" cellpadding="0">
 }  $domainrow
   $serverrow
 sub redirect_page {  $loadrow    
     my ($desthost,$path) = @_;  $userloadrow
     my $protocol = $Apache::lonnet::protocol{$desthost};  $versionrow
     $protocol = 'http' if ($protocol ne 'https');       </table>
     unless ($path =~ m{^/}) {      </div>
         $path = '/'.$path;      <div style="float: right;">
     }      $domainlogo
     my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;      </div>
     if ($env{'form.firsturl'} ne '') {      <br style="clear:both;" />
         $url .='?firsturl='.$env{'form.firsturl'};   </div>
     }  
     my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,  <script type="text/javascript">
                                                     {'redirect' => [0,$url],});  // <![CDATA[
     my $end_page   = &Apache::loncommon::end_page();  // the if prevents the script error if the browser can not handle this
     return $start_page.$end_page;  if ( document.client.uname ) { document.client.uname.focus(); }
 }  // ]]>
   </script>
 sub contactdisplay {  $helpdeskscript
     my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript) = @_;  
     my $contactblock;  ENDDOCUMENT
     my $showhelpdesk = 0;      my %endargs = ( 'noredirectlink' => 1, );
     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};      $r->print(&Apache::loncommon::end_page(\%endargs));
     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {      return OK;
         $showhelpdesk = 1;  }
     }  
     if ($servadm && $showadminmail) {  sub check_loginvia {
         $contactblock .= $$lt{'servadm'}.':<br />'.      my ($domain,$lonhost) = @_;
                          '<tt>'.$servadm.'</tt><br />';      if ($domain eq '' || $lonhost eq '') {
     }          return;
     if ($showhelpdesk) {      }
         $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';      my %domconfhash = &Apache::loncommon::get_domainconf($domain);
         my $thisurl = &escape('/adm/login');      my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
         $$helpdeskscript = <<"ENDSCRIPT";      my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
 <script type="text/javascript">      my $output;
 // <![CDATA[      if ($loginvia ne '') {
 function helpdesk() {          my $noredirect;
     var codedom = document.client.udom.value;          my $ip = $ENV{'REMOTE_ADDR'};
     if (codedom == '') {          if ($ip eq '127.0.0.1') {
         codedom = "$authdomain";              $noredirect = 1;
     }          } else {
     var querystr = "origurl=$thisurl&codedom="+codedom;              if ($loginvia_exempt ne '') {
     document.location.href = "/adm/helpdesk?"+querystr;                  my @exempt = split(',',$loginvia_exempt);
     return;                  if (grep(/^\Q$ip\E$/,@exempt)) {
 }                      $noredirect = 1;
 // ]]>                  }
 </script>              }
 ENDSCRIPT          }
     }          unless ($noredirect) {
     return $contactblock;              my ($newhost,$path);
 }              if ($loginvia =~ /:/) {
                   ($newhost,$path) = split(':',$loginvia);
 sub forgotpwdisplay {              } else {
     my (%lt) = @_;                  $newhost = $loginvia;
     my $prompt_for_resetpw = 1;               }
     if ($prompt_for_resetpw) {              if ($newhost ne $lonhost) {
         return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';                  if (&Apache::lonnet::hostname($newhost) ne '') {
     }                      $output = &redirect_page($newhost,$path);
     return;                  }
 }              }
           }
 sub loginhelpdisplay {      }
     my ($authdomain,%lt) = @_;      return $output;
     my $login_help = 1;  }
     if ($login_help) {  
         my $dom = $authdomain;  sub redirect_page {
         if ($dom eq '') {      my ($desthost,$path) = @_;
             $dom = &Apache::lonnet::default_login_domain();      my $protocol = $Apache::lonnet::protocol{$desthost};
         }      $protocol = 'http' if ($protocol ne 'https');
         my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'],$dom);      unless ($path =~ m{^/}) {
         my $loginhelp_url = $helpconfig{'helpsettings'}{'loginhelpurl'};          $path = '/'.$path;
         if ($loginhelp_url ne '') {      }
             return '<a href="'.$loginhelp_url.'">'.$lt{'help'}.'</a>';      my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
         } else {      if ($env{'form.firsturl'} ne '') {
             return '<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a>';          $url .='?firsturl='.$env{'form.firsturl'};
         }      }
     }      my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
     return;                                                      {'redirect' => [0,$url],});
 }      my $end_page   = &Apache::loncommon::end_page();
       return $start_page.$end_page;
 sub coursecatalog_link {  }
     my ($linkname) = @_;  
     return <<"END";  sub contactdisplay {
       <a href="/adm/coursecatalog">$linkname</a>      my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
 END          $possdoms) = @_;
 }      my $contactblock;
       my $origmail;
 sub newuser_link {      if (ref($possdoms) eq 'ARRAY') {
     my ($linkname) = @_;          if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
     return '<a href="/adm/createaccount">'.$linkname.'</a>';              $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
 }          }
       }
 1;      my $requestmail =
 __END__          &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
                                                    $authdomain,$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.1.150  
changed lines
  Added in v.1.161

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