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Diff for /loncom/auth/lonlogin.pm between versions 1.106.4.2 and 1.171

version 1.106.4.2, 2009/08/12 19:44:18 version 1.171, 2017/09/25 00:36:30
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;
    use CGI::Cookie();
 sub handler {   
     my $r = shift;  sub handler {
       my $r = shift;
     &Apache::loncommon::get_unprocessed_cgi  
  (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},      &Apache::loncommon::get_unprocessed_cgi
       $ENV{'REDIRECT_QUERY_STRING'}),   (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
  ['interface','username','domain','firsturl','localpath','localres',        $ENV{'REDIRECT_QUERY_STRING'}),
   'token']);   ['interface','username','domain','firsturl','localpath','localres',
     if (!defined($env{'form.firsturl'})) {    'token','role','symb','iptoken']);
         &Apache::lonacc::get_posted_cgi($r,['firsturl']);      if (!defined($env{'form.firsturl'})) {
     }          &Apache::lonacc::get_posted_cgi($r,['firsturl']);
       }
 # -- check if they are a migrating user  
     if (defined($env{'form.token'})) {  # -- check if they are a migrating user
  return &Apache::migrateuser::handler($r);      if (defined($env{'form.token'})) {
     }   return &Apache::migrateuser::handler($r);
       }
     &Apache::loncommon::no_cache($r);  
     &Apache::lonlocal::get_language_handle($r);  # For "public user" - remove any exising "public" cookie, as user really wants to log-in
     &Apache::loncommon::content_type($r,'text/html');      my ($handle,$lonidsdir,$expirepub,$userdom);
     $r->send_http_header;      unless ($r->header_only) {
     return OK if $r->header_only;          $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom);
           if ($handle ne '') {
               $lonidsdir=$r->dir_config('lonIDsDir');
 # Are we re-routing?              if ($handle=~/^publicuser\_/) {
     if (-e '/home/httpd/html/lon-status/reroute.txt') {                  unlink($r->dir_config('lonIDsDir')."/$handle.id");
  &Apache::lonauth::reroute($r);                  undef($handle);
  return OK;                  undef($userdom);
     }                  $expirepub = 1;
               }
           }
 # -------------------------------- Prevent users from attempting to login twice      }
     my $handle = &Apache::lonnet::check_for_valid_session($r);  
     if ($handle=~/^publicuser\_/) {      &Apache::loncommon::no_cache($r);
 # For "public user" - remove it, we apparently really want to login      &Apache::lonlocal::get_language_handle($r);
  unlink($r->dir_config('lonIDsDir')."/$handle.id");      &Apache::loncommon::content_type($r,'text/html');
     } elsif ($handle ne '') {      if ($expirepub) {
 # Indeed, a valid token is found          my $c = new CGI::Cookie(-name    => 'lonPubID',
  my $start_page =                                   -value   => '',
     &Apache::loncommon::start_page('Already logged in');                                  -expires => '-10y',);
  my $end_page =           $r->header_out('Set-cookie' => $c);
     &Apache::loncommon::end_page();      } elsif (($handle eq '') && ($userdom ne '')) {
  $r->print(          my $c = new CGI::Cookie(-name    => 'lonID',
                   $start_page                                  -value   => '',
                  .'<h1>'.&mt('You are already logged in!').'</h1>'                                  -expires => '-10y',);
                  .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',          $r->headers_out->add('Set-cookie' => $c);
                   '<a href="/adm/roles">','</a>','<a href="/adm/logout">','</a>').'</p>'      }
                  .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'      $r->send_http_header;
                  .$end_page      return OK if $r->header_only;
                  );  
         return OK;  
     }  # Are we re-routing?
       my $londocroot = $r->dir_config('lonDocRoot');
 # ---------------------------------------------------- No valid token, continue      if (-e "$londocroot/lon-status/reroute.txt") {
    &Apache::lonauth::reroute($r);
  # ---------------------------- Not possible to really login to domain "public"   return OK;
     if ($env{'form.domain'} eq 'public') {      }
  $env{'form.domain'}='';  
  $env{'form.username'}='';  #
     }  # If browser sent an old cookie for which the session file had been removed
 # ----------------------------------------------------------- Process Interface  # check if configuration for user's domain has a portal URL set.  If so
     $env{'form.interface'}=~s/\W//g;  # switch user's log-in to the portal.
   #
     my $textbrowsers=$r->dir_config('lonTextBrowsers');  
     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};      if (($handle eq '') && ($userdom ne '')) {
               my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom);
     foreach (split(/\:/,$textbrowsers)) {          if ($domdefaults{'portal_def'} =~ /^https?\:/) {
  if ($httpbrowser=~/$_/i) {              my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
     $env{'form.interface'}='textual';                                            {'redirect' => [0,$domdefaults{'portal_def'}],});
         }              my $end_page   = &Apache::loncommon::end_page();
     }              $r->print($start_page.$end_page);
               return OK;
     my $fullgraph=($env{'form.interface'} ne 'textual');          }
       }
     my $iconpath=   
  &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));      $env{'form.firsturl'} =~ s/(`)/'/g;
   
     my $domain = &Apache::lonnet::default_login_domain();  # -------------------------------- Prevent users from attempting to login twice
     if (($env{'form.domain'}) &&       if ($handle ne '') {
  (&Apache::lonnet::domain($env{'form.domain'},'description'))) {          &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
  $domain=$env{'form.domain'};   my $start_page =
     }      &Apache::loncommon::start_page('Already logged in');
     my $role    = $r->dir_config('lonRole');   my $end_page =
     my $loadlim = $r->dir_config('lonLoadLim');      &Apache::loncommon::end_page();
     my $servadm = $r->dir_config('lonAdmEMail');          my $dest = '/adm/roles';
     my $lonhost = $r->dir_config('lonHostID');          if ($env{'form.firsturl'} ne '') {
     my $tabdir  = $r->dir_config('lonTabDir');              $dest = $env{'form.firsturl'};
     my $include = $r->dir_config('lonIncludes');          }
     my $expire  = $r->dir_config('lonExpire');   $r->print(
     my $version = $r->dir_config('lonVersion');                    $start_page
     my $host_name = &Apache::lonnet::hostname($lonhost);                   .'<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].',
 # --------------------------------------------- Default values for login fields                    '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
                    .$end_page
     my $authusername=($env{'form.username'}?$env{'form.username'}:'');                   );
     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);          return OK;
       }
 # ---------------------------------------------------------- Determine own load  
     my $loadavg;  # ---------------------------------------------------- No valid token, continue
     {  
  my $loadfile=Apache::File->new('/proc/loadavg');  # ---------------------------- Not possible to really login to domain "public"
  $loadavg=<$loadfile>;      if ($env{'form.domain'} eq 'public') {
     }   $env{'form.domain'}='';
     $loadavg =~ s/\s.*//g;   $env{'form.username'}='';
     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);      }
     my $userloadpercent=&Apache::lonnet::userload();  
   # ------ Is this page requested because /adm/migrateuser detected an IP change?
 # ------------------------------------------------------- Do the load balancing      my %sessiondata;
     my $otherserver= &Apache::lonnet::absolute_url($host_name);      if ($env{'form.iptoken'}) {
     my $firsturl=          %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});          unless ($sessiondata{'sessionserver'}) {
 # ---------------------------------------------------------- Are we overloaded?              my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'});
     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {              delete($env{'form.iptoken'});
         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);          }
  if ($unloaded) { $otherserver=$unloaded; }      }
     }  # ----------------------------------------------------------- Process Interface
       $env{'form.interface'}=~s/\W//g;
 # ----------------------------------------------------------- Get announcements  
     my $announcements=&Apache::lonnet::getannounce();      (undef,undef,undef,undef,undef,undef,my $clientmobile) =
 # -------------------------------------------------------- Set login parameters          &Apache::loncommon::decode_user_agent();
   
     my @hexstr=('0','1','2','3','4','5','6','7',      my $iconpath=
                 '8','9','a','b','c','d','e','f');   &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
     my $lkey='';  
     for (0..7) {      my $lonhost = $r->dir_config('lonHostID');
         $lkey.=$hexstr[rand(15)];      my $domain = &Apache::lonnet::default_login_domain();
     }      my $defdom = $domain;
       if ($lonhost ne '') {
     my $ukey='';          unless ($sessiondata{'sessionserver'}) {
     for (0..7) {              my $redirect = &check_loginvia($domain,$lonhost);
         $ukey.=$hexstr[rand(15)];              if ($redirect) {
     }                  $r->print($redirect);
                   return OK;
     my $lextkey=hex($lkey);              }
     if ($lextkey>2147483647) { $lextkey-=4294967296; }          }
       }
     my $uextkey=hex($ukey);  
     if ($uextkey>2147483647) { $uextkey-=4294967296; }      if (($sessiondata{'domain'}) &&
           (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
 # -------------------------------------------------------- Store away log token          $domain=$sessiondata{'domain'};
     my $logtoken=Apache::lonnet::reply(      } elsif (($env{'form.domain'}) &&
        'tmpput:'.$ukey.$lkey.'&'.$firsturl,   (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
        $lonhost);   $domain=$env{'form.domain'};
       }
 # ------------------- If we cannot talk to ourselves, we are in serious trouble  
       my $role    = $r->dir_config('lonRole');
     if ($logtoken eq 'con_lost') {      my $loadlim = $r->dir_config('lonLoadLim');
         my $spares='';      my $uloadlim= $r->dir_config('lonUserLoadLim');
  my $last;      my $servadm = $r->dir_config('lonAdmEMail');
         foreach my $hostid (sort      my $tabdir  = $r->dir_config('lonTabDir');
     {      my $include = $r->dir_config('lonIncludes');
  &Apache::lonnet::hostname($a) cmp      my $expire  = $r->dir_config('lonExpire');
     &Apache::lonnet::hostname($b);      my $version = $r->dir_config('lonVersion');
     }      my $host_name = &Apache::lonnet::hostname($lonhost);
     keys(%Apache::lonnet::spareid)) {  
             next if ($hostid eq $lonhost);  # --------------------------------------------- Default values for login fields
     my $hostname = &Apache::lonnet::hostname($hostid);     
     next if ($last eq $hostname);      my ($authusername,$authdomain);
             $spares.='<br /><font size="+1"><a href="http://'.      if ($sessiondata{'username'}) {
                 $hostname.          $authusername=$sessiondata{'username'};
                 '/adm/login?domain='.$authdomain.'">'.      } else {
                 $hostname.'</a>'.          $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
                 ' '.&mt('(preferred)').'</font>'.$/;          $authusername=($env{'form.username'}?$env{'form.username'}:'');
     $last=$hostname;      }
         }      if ($sessiondata{'domain'}) {
         $spares.= '<br />';          $authdomain=$sessiondata{'domain'};
  my %all_hostnames = &Apache::lonnet::all_hostnames();      } else {
         foreach my $hostid (sort          $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
     {          $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
  &Apache::lonnet::hostname($a) cmp      }
     &Apache::lonnet::hostname($b);  
     }  # ---------------------------------------------------------- Determine own load
     keys(%all_hostnames)) {      my $loadavg;
             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});      {
     my $hostname = &Apache::lonnet::hostname($hostid);   my $loadfile=Apache::File->new('/proc/loadavg');
             next if ($last eq $hostname);   $loadavg=<$loadfile>;
             $spares.='<br /><a href="http://'.      }
                 $hostname.      $loadavg =~ s/\s.*//g;
                 '/adm/login?domain='.$authdomain.'">'.  
                 $hostname.'</a>';      my ($loadpercent,$userloadpercent);
     $last=$hostname;      if ($loadlim) {
         }          $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
  $r->print(      }
            '<html>'      if ($uloadlim) {
           .'<head><title>'          $userloadpercent=&Apache::lonnet::userload();
           .&mt('The LearningOnline Network with CAPA')      }
           .'</title></head>'  
           .'<body bgcolor="#FFFFFF">'      my $firsturl=
           .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'      ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
           .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'  
           .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'  # ----------------------------------------------------------- Get announcements
           .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'      my $announcements=&Apache::lonnet::getannounce();
           .$spares  # -------------------------------------------------------- Set login parameters
           .'</body>'  
           .'</html>'      my @hexstr=('0','1','2','3','4','5','6','7',
         );                  '8','9','a','b','c','d','e','f');
         return OK;      my $lkey='';
     }      for (0..7) {
           $lkey.=$hexstr[rand(15)];
 # ----------------------------------------------- Apparently we are in business      }
     $servadm=~s/\,/\<br \/\>/g;  
       my $ukey='';
 # ----------------------------------------------------------- Front page design      for (0..7) {
     my $pgbg=          $ukey.=$hexstr[rand(15)];
       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');      }
     my $font=  
       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');      my $lextkey=hex($lkey);
     my $link=      if ($lextkey>2147483647) { $lextkey-=4294967296; }
       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');  
     my $vlink=      my $uextkey=hex($ukey);
       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');      if ($uextkey>2147483647) { $uextkey-=4294967296; }
     my $alink=&Apache::loncommon::designparm('login.alink',$domain);  
     my $mainbg=  # -------------------------------------------------------- Store away log token
       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');      my $tokenextras;
     my $sidebg=      if ($env{'form.role'}) {
       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');          $tokenextras = '&role='.&escape($env{'form.role'});
     my $textcol =       }
       ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');      if ($env{'form.symb'}) {
     my $bgcol =          if (!$tokenextras) {
       ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');              $tokenextras = '&';
     my $logo=&Apache::loncommon::designparm('login.logo',$domain);          }
     my $img=&Apache::loncommon::designparm('login.img',$domain);          $tokenextras .= '&symb='.&escape($env{'form.symb'});
     my $domainlogo=&Apache::loncommon::domainlogo($domain);      }
     my $login=&Apache::loncommon::designparm('login.login',$domain);      if ($env{'form.iptoken'}) {
     if ($login eq '') {          if (!$tokenextras) {
         $login = $iconpath.'/'.&mt('userauthentication.gif');              $tokenextras = '&&';
     }          }
     my $showbanner = 1;          $tokenextras .= '&iptoken='.&escape($env{'form.iptoken'});
     my $showmainlogo = 1;      }
     if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {      my $logtoken=Apache::lonnet::reply(
         $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);         'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
     }         $lonhost);
     if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {  
         $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);  # -- If we cannot talk to ourselves, or hostID does not map to a hostname
     }  #    we are in serious trouble
     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);  
     my $showcoursecat =      if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
         &Apache::loncommon::designparm('login.coursecatalog',$domain);          if ($logtoken eq 'no_such_host') {
     my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);              &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
     my $shownewuserlink =           }
         &Apache::loncommon::designparm('login.newuser',$domain);          my $spares='';
     my $now=time;   my $last;
     my $js = (<<ENDSCRIPT);          foreach my $hostid (sort
       {
  <script type="text/javascript">   &Apache::lonnet::hostname($a) cmp
  // <![CDATA[      &Apache::lonnet::hostname($b);
     function send()      }
     {      keys(%Apache::lonnet::spareid)) {
         this.document.server.elements.uname.value              next if ($hostid eq $lonhost);
        =this.document.client.elements.uname.value;      my $hostname = &Apache::lonnet::hostname($hostid);
       next if (($last eq $hostname) || ($hostname eq ''));
         this.document.server.elements.udom.value              $spares.='<br /><font size="+1"><a href="http://'.
        =this.document.client.elements.udom.value;                  $hostname.
                   '/adm/login?domain='.$authdomain.'">'.
         this.document.server.elements.imagesuppress.value                  $hostname.'</a>'.
        =this.document.client.elements.imagesuppress.checked;                  ' '.&mt('(preferred)').'</font>'.$/;
       $last=$hostname;
         this.document.server.elements.embedsuppress.value          }
        =this.document.client.elements.embedsuppress.checked;          if ($spares) {
               $spares.= '<br />';
         this.document.server.elements.appletsuppress.value          }
        =this.document.client.elements.appletsuppress.checked;          my %all_hostnames = &Apache::lonnet::all_hostnames();
           foreach my $hostid (sort
         this.document.server.elements.fontenhance.value      {
        =this.document.client.elements.fontenhance.checked;   &Apache::lonnet::hostname($a) cmp
       &Apache::lonnet::hostname($b);
         this.document.server.elements.blackwhite.value      }
        =this.document.client.elements.blackwhite.checked;      keys(%all_hostnames)) {
               next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
         this.document.server.elements.remember.value              my $hostname = &Apache::lonnet::hostname($hostid);
        =this.document.client.elements.remember.checked;              next if (($last eq $hostname) || ($hostname eq ''));
               $spares.='<br /><a href="http://'.
         uextkey=this.document.client.elements.uextkey.value;               $hostname.
         lextkey=this.document.client.elements.lextkey.value;               '/adm/login?domain='.$authdomain.'">'.
         initkeys();               $hostname.'</a>';
               $last=$hostname;
         this.document.server.elements.upass0.value           }
             =crypted(this.document.client.elements.upass$now.value.substr(0,15));           $r->print(
         this.document.server.elements.upass1.value     '<html>'
             =crypted(this.document.client.elements.upass$now.value.substr(15,15));    .'<head><title>'
         this.document.server.elements.upass2.value    .&mt('The LearningOnline Network with CAPA')
             =crypted(this.document.client.elements.upass$now.value.substr(30,15));    .'</title></head>'
     .'<body bgcolor="#FFFFFF">'
         this.document.client.elements.uname.value='';    .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
         this.document.client.elements.upass$now.value='';    .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
     .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
         this.document.server.submit();          if ($spares) {
         return false;              $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
     }                       .'</p>'
  // ]]>                       .$spares);
  </script>          }
           $r->print('</body>'
 ENDSCRIPT                   .'</html>'
           );
 # --------------------------------------------------- Print login screen header          return OK;
       }
     my %add_entries = (topmargin    => "0",  
                        leftmargin   => "0",  # ----------------------------------------------- Apparently we are in business
                        marginheight => "0",      $servadm=~s/\,/\<br \/\>/g;
                        marginwidth  => "0",  
                        bgcolor      => "$pgbg",  # ----------------------------------------------------------- Front page design
                        text         => "$font",      my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
                        link         => "$link",      my $font=&Apache::loncommon::designparm('login.font',$domain);
                        vlink        => "$vlink",      my $link=&Apache::loncommon::designparm('login.link',$domain);
                        alink        => "$alink",);      my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
       my $alink=&Apache::loncommon::designparm('login.alink',$domain);
     $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,      my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
                                        { 'redirect'       => [$expire,'/adm/roles'],       my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
                                          'add_entries' => \%add_entries,      my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
                                          'only_body'   => 1,}));      my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
       my $logo=&Apache::loncommon::designparm('login.logo',$domain);
 # ----------------------------------------------------------------------- Texts      my $img=&Apache::loncommon::designparm('login.img',$domain);
       my $domainlogo=&Apache::loncommon::domainlogo($domain);
 my %lt=&Apache::lonlocal::texthash(      my $showbanner = 1;
   'un'  => 'Username',      my $showmainlogo = 1;
   'pw'  => 'Password',      if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
   'dom' => 'Domain',          $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
   'load' => 'Server Load',      }
                   'userload' => 'User Load',      if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
                   'about'  => 'About LON-CAPA',          $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
                   'access' => 'Accessibility Options',      }
                   'catalog' => 'Course Catalog',      my $showadminmail;
   'log' => 'Log in',      my @possdoms = &Apache::lonnet::current_machine_domains();
   'help' => 'Log-in Help',      if (grep(/^\Q$domain\E$/,@possdoms)) {
   'serv' => 'Server',          $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
                   'servadm' => 'Server Administration',      }
                   'helpdesk' => 'Contact Helpdesk',      my $showcoursecat =
                   'forgotpw' => 'Forgot password?',          &Apache::loncommon::designparm('login.coursecatalog',$domain);
                   'newuser'  => 'New User?',      my $shownewuserlink =
                   'options_headline' => 'Select Accessibility Options',          &Apache::loncommon::designparm('login.newuser',$domain);
                   'sprs_img' => 'Suppress rendering of images',      my $showhelpdesk =
                   'sprs_applet' => 'Suppress Java applets',          &Apache::loncommon::designparm('login.helpdesk',$domain);
                   'sprs_embed' => 'Suppress rendering of embedded multimedia',      my $now=time;
                   'sprs_font' => 'Increase font size',      my $js = (<<ENDSCRIPT);
                   'sprs_blackwhite' => 'Switch to black and white mode',  
                   'remember' => 'Remember these settings for next login');  <script type="text/javascript" language="JavaScript">
 # -------------------------------------------------- Change password field name  // <![CDATA[
     my $forgotpw = &forgotpwdisplay(%lt);  function send()
     my $loginhelp = &loginhelpdisplay(%lt);  {
   this.document.server.elements.uname.value
 # ---------------------------------------------------- Serve out DES JavaScript  =this.document.client.elements.uname.value;
     {  
         my $jsh=Apache::File->new($include."/londes.js");  this.document.server.elements.udom.value
         $r->print(<$jsh>);  =this.document.client.elements.udom.value;
     }  
 # ---------------------------------------------------------- Serve rest of page  uextkey=this.document.client.elements.uextkey.value;
   lextkey=this.document.client.elements.lextkey.value;
     if ($fullgraph) {  initkeys();
  $r->print(  
   '<table width="100%" cellpadding="0" cellspacing="0" border="0">');  if(this.document.server.action.substr(0,5) === 'http:'){
     }      this.document.server.elements.upass0.value
           =getCrypted(this.document.client.elements.upass$now.value);
     $r->print(<<ENDSERVERFORM);  } else {
   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">      this.document.server.elements.upass0.value
    <input type="hidden" name="logtoken" value="$logtoken" />          =this.document.client.elements.upass$now.value;
    <input type="hidden" name="serverid" value="$lonhost" />  }
    <input type="hidden" name="interface" value="$env{'form.interface'}" />  
    <input type="hidden" name="uname" value="" />  this.document.client.elements.uname.value='';
    <input type="hidden" name="upass0" value="" />  this.document.client.elements.upass$now.value='';
    <input type="hidden" name="upass1" value="" />  
    <input type="hidden" name="upass2" value="" />  this.document.server.submit();
    <input type="hidden" name="udom" value="" />  return false;
    <input type="hidden" name="imagesuppress"  value="" />  }
    <input type="hidden" name="appletsuppress"  value="" />  
    <input type="hidden" name="embedsuppress"  value="" />  function enableInput() {
    <input type="hidden" name="fontenhance"  value="" />      this.document.client.elements.upass$now.removeAttribute("readOnly");
    <input type="hidden" name="blackwhite"  value="" />      this.document.client.elements.uname.removeAttribute("readOnly");
    <input type="hidden" name="remember"  value="" />      this.document.client.elements.udom.removeAttribute("readOnly");
    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />      return;
    <input type="hidden" name="localres" value="$env{'form.localres'}" />  }
   </form>  
 ENDSERVERFORM  // ]]>
     my $coursecatalog;  </script>
     if (($showcoursecat eq '') || ($showcoursecat)) {  
         $coursecatalog = &coursecatalog_link($lt{'catalog'});  ENDSCRIPT
     }  
     my $newuserlink;  # --------------------------------------------------- Print login screen header
     if ($shownewuserlink) {  
         $newuserlink = &newuser_link($lt{'newuser'});      my %add_entries = (
     }         bgcolor      => "$mainbg",
     if ($fullgraph) {         text         => "$font",
         $r->print(<<HEADER);         link         => "$link",
   <!-- The LON-CAPA Header -->         vlink        => "$vlink",
   <tr>         alink        => "$alink",
                  onload       => 'javascript:enableInput();',);
    <!-- Row 1 Columns 2-4 -->  
    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg">      my ($lonhost_in_use,$headextra,$headextra_exempt,@hosts,%defaultdomconf);
 HEADER      @hosts = &Apache::lonnet::current_machine_ids();
         if ($showbanner) {      $lonhost_in_use = $lonhost;
             $r->print(<<ENDBANNER);      if (@hosts > 1) {
 <img src="$img" border="0" alt="The Learning Online Network with CAPA" />          foreach my $hostid (@hosts) {
 ENDBANNER              if (&Apache::lonnet::host_domain($hostid) eq $defdom) {
         }                  $lonhost_in_use = $hostid;
         $r->print(<<ENDSTART);                  last;
    </td>              }
   </tr>          }
       }
   <!-- The gray bar that starts the two table frames -->      %defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
   <tr>      $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use};
       $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use};
    <!-- Row 2 Column 1 -->      if ($headextra) {
    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>          my $omitextra;
           if ($headextra_exempt ne '') {
    <!-- Row 2 Column 2 -->              my @exempt = split(',',$headextra_exempt);
    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>              my $ip = $ENV{'REMOTE_ADDR'};
               if (grep(/^\Q$ip\E$/,@exempt)) {
    <!-- Row 2 Column 3 -->                  $omitextra = 1;
    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>              }
           }
    <!-- Row 2 Column 4 -->          unless ($omitextra) {
    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>              my $confname = $defdom.'-domainconfig';
   </tr>              if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) {
   <tr>                  my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
                      unless ($extra eq '-1') {
    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->                      $js .= "\n".$extra."\n";
    <!-- Row 3 Column 1 -->                  }
    <td valign="top" height="60" align="left" bgcolor="$sidebg">              }
     <table cellpadding="0" cellspacing="2" border="0">          }
      <tr>      }
       <td>&nbsp;</td>  
       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>      $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
      </tr>         { 'redirect'       => [$expire,'/adm/roles'],
      <tr>   'add_entries' => \%add_entries,
       <td>&nbsp;</td>   'only_body'   => 1,}));
       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>  
      </tr>$coursecatalog  # ----------------------------------------------------------------------- Texts
      <tr>  
       <td colspan="2">&nbsp;</td>      my %lt=&Apache::lonlocal::texthash(
      </tr>            'un'       => 'Username',
     </table>            'pw'       => 'Password',
    </td>            'dom'      => 'Domain',
    <!-- The shaded space between the two main columns -->            'perc'     => 'percent',
    <!-- Row 3 Column 2 -->            'load'     => 'Server Load',
    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>            'userload' => 'User Load',
             'catalog'  => 'Course/Community Catalog',
    <!-- The right main column holding the large LON-CAPA logo-->            'log'      => 'Log in',
    <!-- Rows 3-4 Column 3 -->            'help'     => 'Log-in Help',
    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">            'serv'     => 'Server',
 ENDSTART            'servadm'  => 'Server Administration',
         if ($showmainlogo) {            'helpdesk' => 'Contact Helpdesk',
             $r->print(<<ENDLOGO);            'forgotpw' => 'Forgot password?',
     <center>            'newuser'  => 'New User?',
      <img src="$logo" alt="" />         );
     </center>  # -------------------------------------------------- Change password field name
 ENDLOGO  
         }      my $forgotpw = &forgotpwdisplay(%lt);
         $r->print(<<ENDTOP);      $forgotpw .= '<br />' if $forgotpw;
    </td>      my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
       if ($loginhelp) {
    <!-- Row 3 Column 4 -->          $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>      }
   </tr>  
   <tr>  # ---------------------------------------------------- Serve out DES JavaScript
       {
    <!-- The entry form -->      my $jsh=Apache::File->new($include."/londes.js");
    <!-- Row 4 Column 1 -->      $r->print(<$jsh>);
    <td align="center" valign="middle" bgcolor="$sidebg">      }
 ENDTOP  # ---------------------------------------------------------- Serve rest of page
     } else {  
         $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1>'      $r->print(
                  .'<h2>'.&mt('Text-based Interface Login').'</h2>'      '<div class="LC_Box"'
                  .$announcements);     .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
     }  );
     $r->print('<form name="client" action="" onsubmit="return(send())">');  
     unless ($fullgraph) {      $r->print(<<ENDSERVERFORM);
         $r->print(<<ENDACCESSOPTIONS);  <form name="server" action="/adm/authenticate" method="post" target="_top">
 <h3>$lt{'options_headline'}</h3>     <input type="hidden" name="logtoken" value="$logtoken" />
 <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />     <input type="hidden" name="serverid" value="$lonhost" />
 <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />     <input type="hidden" name="uname" value="" />
 <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />     <input type="hidden" name="upass0" value="" />
 <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />     <input type="hidden" name="udom" value="" />
 <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />     <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
 <br />     <input type="hidden" name="localres" value="$env{'form.localres'}" />
 <input type="checkbox" name="remember" /> $lt{'remember'}<hr />    </form>
 ENDACCESSOPTIONS  ENDSERVERFORM
     } else {      my $coursecatalog;
         $r->print(<<ENDNOOPT);      if (($showcoursecat eq '') || ($showcoursecat)) {
 <input type="hidden" name="imagesuppress"  value="" />          $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
 <input type="hidden" name="embedsuppress"  value="" />      }
 <input type="hidden" name="appletsuppress"  value="" />      my $newuserlink;
 <input type="hidden" name="fontenhance"  value="" />      if ($shownewuserlink) {
 <input type="hidden" name="blackwhite"  value="" />          $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
 <input type="hidden" name="remember"  value="" />      }
 ENDNOOPT      my $logintitle =
     }          '<h2 class="LC_hcell"'
     my $logintitle;         .' style="background:'.$loginbox_header_bgcol.';'
     if ($loginheader eq 'text') {         .' color:'.$loginbox_header_textcol.'">'
         $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2">&nbsp;&nbsp;&nbsp;<b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';         .$lt{'log'}
     } else {         .'</h2>';
         $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.  
                       &mt('User Authentication').'" /></td>';      my $noscript_warning='<noscript><span class="LC_warning"><b>'
     }                          .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
     my $noscript_warning='<td colspan="2" bgcolor="'.$mainbg.'">'                          .'</b></span></noscript>';
                         .'<noscript><div class="LC_warning"><font size="-1">'      my $helpdeskscript;
                         .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')      my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                         .'</font></div></noscript></td>';                                         $authdomain,\$helpdeskscript,
     $r->print(<<ENDLOGIN);                                         $showhelpdesk,\@possdoms);
      <input type="hidden" name="lextkey" value="$lextkey" />  
      <input type="hidden" name="uextkey" value="$uextkey" />      my $mobileargs;
       if ($clientmobile) {
      <!-- Start the sub-table for text and input alignment -->          $mobileargs = 'autocapitalize="off" autocorrect="off"';
      <table border="0" cellspacing="0" cellpadding="0">      }
       <tr>$logintitle</tr>      my $loginform=(<<LFORM);
       <tr>$noscript_warning</tr>  <form name="client" action="" onsubmit="return(send())">
       <tr>    <input type="hidden" name="lextkey" value="$lextkey" />
        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>    <input type="hidden" name="uextkey" value="$uextkey" />
        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>    <b><label for="uname">$lt{'un'}</label>:</b><br />
       </tr>    <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
       <tr>    <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>    <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>    <b><label for="udom">$lt{'dom'}</label>:</b><br />
       </tr>    <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
       <tr>    <input type="submit" value="$lt{'log'}" />
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>  </form>
        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>  LFORM
       </tr>  
       <tr>      if ($showbanner) {
        <td bgcolor="$mainbg">&nbsp;</td>          $r->print(<<HEADER);
        <td bgcolor="$mainbg" valign="bottom" align="center">  <!-- The LON-CAPA Header -->
         <br />  <div style="background:$pgbg;margin:0;width:100%;">
         <input type="submit" value="$lt{'log'}" />    <img src="$img" border="0" alt="The Learning Online Network with CAPA" class="LC_maxwidth" />
        </td>  </div>
       </tr>  HEADER
       <tr>      }
        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">      $r->print(<<ENDTOP);
         $loginhelp  <div style="float:left;margin-top:0;">
         $forgotpw  <div class="LC_Box" style="background:$loginbox_bg;">
         $newuserlink    $logintitle
         <br />    $loginform
        </td>    $noscript_warning
       </tr>  </div>
      </table>   
      <!-- End sub-table -->  <div class="LC_Box" style="padding-top: 10px;">
     </form>    $loginhelp
 ENDLOGIN    $forgotpw
     if ($fullgraph) {    $contactblock
         my $helpdeskscript;    $newuserlink
         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,    $coursecatalog
                                   $version,$authdomain,\$helpdeskscript);  </div>
  $r->print(<<ENDDOCUMENT);  </div>
    </td>  
   <div>
    <!-- Row 4 Column 2 -->  ENDTOP
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>      if ($showmainlogo) {
           $r->print(' <img src="'.$logo.'" alt="" class="LC_maxwidth" />'."\n");
    <!-- Row 4 Column 3 -->      }
 <td bgcolor="$mainbg">$announcements</td>  $r->print(<<ENDTOP);
   $announcements
    <!-- Row 4 Column 4 -->  </div>
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>  <hr style="clear:both;" />
   </tr>  ENDTOP
   <tr>      my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
       $domainrow = <<"END";
    <!-- Row 5 Column 1 -->        <tr>
    <td bgcolor="$sidebg" valign="middle" align="left">         <td  align="left" valign="top">
      <br />          <small><b>$lt{'dom'}:&nbsp;</b></small>
      <table border="0" cellspacing="0" cellpadding="0">         </td>
       <tr>         <td  align="left" valign="top">
        <td bgcolor="$sidebg" align="left" valign="top">          <small><tt>&nbsp;$domain</tt></small>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>         </td>
        </td>        </tr>
        <td bgcolor="$sidebg" align="left" valign="middle">  END
         <small><tt>&nbsp;$domain</tt></small>      $serverrow = <<"END";
        </td>        <tr>
       </tr>         <td  align="left" valign="top">
       <tr>          <small><b>$lt{'serv'}:&nbsp;</b></small>
        <td bgcolor="$sidebg" align="left" valign="top">         </td>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>         <td align="left" valign="top">
        </td>          <small><tt>&nbsp;$lonhost ($role)</tt></small>
        <td bgcolor="$sidebg" align="left" valign="middle">         </td>
         <small><tt>&nbsp;$lonhost ($role)</tt></small>        </tr>
        </td>  END
       </tr>      if ($loadlim) {
       <tr>          $loadrow = <<"END";
        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">        <tr>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small></span>         <td align="left" valign="top">
        </td>          <small><b>$lt{'load'}:&nbsp;</b></small>
        <td bgcolor="$sidebg" align="left" valign="middle">         </td>
         <small><tt>&nbsp;$loadpercent%</tt></small>         <td align="left" valign="top">
        </td>          <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
       </tr>         </td>
       <tr>        </tr>
        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">  END
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small></span>      }
        </td>      if ($uloadlim) {
        <td bgcolor="$sidebg" align="left" valign="middle">          $userloadrow = <<"END";
         <small><tt>&nbsp;$userloadpercent%</tt></small>        <tr>
        </td>         <td align="left" valign="top">
       </tr>          <small><b>$lt{'userload'}:&nbsp;</b></small>
      </table>         </td>
      <br />         <td align="left" valign="top">
     $contactblock          <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
    </td>         </td>
         </tr>
    <!-- Row 5 Column 2 -->  END
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>      }
       if (($version ne '') && ($version ne '<!-- VERSION -->')) {
    <!-- Row 5 Column 3 -->          $versionrow = <<"END";
    <td width="100%" valign="bottom" bgcolor="$mainbg">        <tr>
 $domainlogo         <td colspan="2" align="left">
 </td>          <small>$version</small>
          </td>
    <!-- Row 5 Column 4 -->        </tr>
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>  END
   </tr>      }
   <tr>  
       $r->print(<<ENDDOCUMENT);
    <!-- Row 6 Column 1 -->      <div style="float: left;">
    <td bgcolor="$sidebg">&nbsp;</td>       <table border="0" cellspacing="0" cellpadding="0">
   $domainrow
    <!-- Row 6 Column 2 -->  $serverrow
    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>  $loadrow    
   $userloadrow
    <!-- Row 6 Column 3 -->  $versionrow
    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>       </table>
       </div>
    <!-- Row 6 Column 4 -->      <div style="float: right;">
    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>      $domainlogo
   </tr>      </div>
  </table>      <br style="clear:both;" />
    </div>
 <script type="text/javascript">  
 // <![CDATA[  <script type="text/javascript">
 // the if prevents the script error if the browser can not handle this  // <![CDATA[
 if ( document.client.uname ) { document.client.uname.focus(); }  // the if prevents the script error if the browser can not handle this
 // ]]>  if ( document.client.uname ) { document.client.uname.focus(); }
 </script>  // ]]>
 $helpdeskscript  </script>
   $helpdeskscript
 ENDDOCUMENT  
 }  ENDDOCUMENT
     my %endargs = ( 'noredirectlink' => 1, );      my %endargs = ( 'noredirectlink' => 1, );
     $r->print(&Apache::loncommon::end_page(\%endargs));      $r->print(&Apache::loncommon::end_page(\%endargs));
     return OK;      return OK;
 }  }
   
 sub contactdisplay {  sub check_loginvia {
     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;      my ($domain,$lonhost) = @_;
     my $contactblock;      if ($domain eq '' || $lonhost eq '') {
     my $showhelpdesk = 0;          return;
     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};      }
     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {      my %domconfhash = &Apache::loncommon::get_domainconf($domain);
         $showhelpdesk = 1;      my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
     }      my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
     if ($servadm && $showadminmail) {      my $output;
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.      if ($loginvia ne '') {
                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';          my $noredirect;
     }          my $ip = $ENV{'REMOTE_ADDR'};
     if ($showhelpdesk) {          if ($ip eq '127.0.0.1') {
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';              $noredirect = 1;
         my $thisurl = &escape('/adm/login');          } else {
         $$helpdeskscript = <<"ENDSCRIPT";              if ($loginvia_exempt ne '') {
 <script type="text/javascript">                  my @exempt = split(',',$loginvia_exempt);
 // <![CDATA[                  if (grep(/^\Q$ip\E$/,@exempt)) {
 function helpdesk() {                      $noredirect = 1;
     var codedom = document.client.udom.value;                  }
     if (codedom == '') {              }
         codedom = "$authdomain";          }
     }          unless ($noredirect) {
     var querystr = "origurl=$thisurl&codedom="+codedom;              my ($newhost,$path);
     document.location.href = "/adm/helpdesk?"+querystr;              if ($loginvia =~ /:/) {
     return;                  ($newhost,$path) = split(':',$loginvia);
 }              } else {
 // ]]>                  $newhost = $loginvia;
 </script>              }
 ENDSCRIPT              if ($newhost ne $lonhost) {
     }                  if (&Apache::lonnet::hostname($newhost) ne '') {
     $contactblock .= <<"ENDBLOCK";                      $output = &redirect_page($newhost,$path);
      &nbsp;&nbsp;&nbsp;$version                  }
 ENDBLOCK              }
     return $contactblock;          }
 }      }
       return $output;
 sub forgotpwdisplay {  }
     my (%lt) = @_;  
     my $prompt_for_resetpw = 1;   sub redirect_page {
     if ($prompt_for_resetpw) {      my ($desthost,$path) = @_;
         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br />';      my $protocol = $Apache::lonnet::protocol{$desthost};
     }      $protocol = 'http' if ($protocol ne 'https');
     return;      unless ($path =~ m{^/}) {
 }          $path = '/'.$path;
       }
 sub loginhelpdisplay {      my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
     my (%lt) = @_;      if ($env{'form.firsturl'} ne '') {
     my $login_help = 1;          $url .='?firsturl='.$env{'form.firsturl'};
     if ($login_help) {      }
         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';      my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
     }                                                      {'redirect' => [0,$url],});
     return;      my $end_page   = &Apache::loncommon::end_page();
 }      return $start_page.$end_page;
   }
 sub coursecatalog_link {  
     my ($linkname) = @_;  sub contactdisplay {
     return <<"END";      my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
      <tr>          $possdoms) = @_;
       <td>&nbsp;</td>      my $contactblock;
       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>      my $origmail;
      </tr>      if (ref($possdoms) eq 'ARRAY') {
 END          if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
 }              $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
           }
 sub newuser_link {      }
     my ($linkname) = @_;      my $requestmail =
     return '&nbsp;&nbsp;&nbsp;<a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';          &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
 }                                                   $authdomain,$origmail);
       unless ($showhelpdesk eq '0') {
 1;          if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
 __END__              $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.1.106.4.2  
changed lines
  Added in v.1.171

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