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Diff for /loncom/auth/lonlogin.pm between versions 1.106.4.3 and 1.173

version 1.106.4.3, 2009/08/12 19:52:15 version 1.173, 2018/07/04 16:58:19
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',        $ENV{'REDIRECT_QUERY_STRING'}),
   'token','role','symb']);   ['interface','username','domain','firsturl','localpath','localres',
     if (!defined($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.firsturl'})) {
     if (defined($env{'form.token'})) {          if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) {
  return &Apache::migrateuser::handler($r);              $env{'form.firsturl'} = $ENV{'REDIRECT_URL'};
     }          }
       }
     &Apache::loncommon::no_cache($r);  
     &Apache::lonlocal::get_language_handle($r);  # -- check if they are a migrating user
     &Apache::loncommon::content_type($r,'text/html');      if (defined($env{'form.token'})) {
     $r->send_http_header;   return &Apache::migrateuser::handler($r);
     return OK if $r->header_only;      }
   
   # For "public user" - remove any exising "public" cookie, as user really wants to log-in
 # Are we re-routing?      my ($handle,$lonidsdir,$expirepub,$userdom);
     if (-e '/home/httpd/html/lon-status/reroute.txt') {      unless ($r->header_only) {
  &Apache::lonauth::reroute($r);          $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom);
  return OK;          if ($handle ne '') {
     }              $lonidsdir=$r->dir_config('lonIDsDir');
               if ($handle=~/^publicuser\_/) {
                   unlink($r->dir_config('lonIDsDir')."/$handle.id");
 # -------------------------------- Prevent users from attempting to login twice                  undef($handle);
     my $handle = &Apache::lonnet::check_for_valid_session($r);                  undef($userdom);
     if ($handle=~/^publicuser\_/) {                  $expirepub = 1;
 # For "public user" - remove it, we apparently really want to login              }
  unlink($r->dir_config('lonIDsDir')."/$handle.id");          }
     } elsif ($handle ne '') {      }
 # Indeed, a valid token is found  
  my $start_page =       &Apache::loncommon::no_cache($r);
     &Apache::loncommon::start_page('Already logged in');      &Apache::lonlocal::get_language_handle($r);
  my $end_page =       &Apache::loncommon::content_type($r,'text/html');
     &Apache::loncommon::end_page();      if ($expirepub) {
  $r->print(          my $c = new CGI::Cookie(-name    => 'lonPubID',
                   $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->header_out('Set-cookie' => $c);
                   '<a href="/adm/roles">','</a>','<a href="/adm/logout">','</a>').'</p>'      } elsif (($handle eq '') && ($userdom ne '')) {
                  .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'          my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
                  .$end_page          foreach my $name (keys(%cookies)) {
                  );              next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
         return OK;              my $c = new CGI::Cookie(-name    => $name,
     }                                      -value   => '',
                                       -expires => '-10y',);
 # ---------------------------------------------------- No valid token, continue              $r->headers_out->add('Set-cookie' => $c);
           }
  # ---------------------------- Not possible to really login to domain "public"      }
     if ($env{'form.domain'} eq 'public') {      $r->send_http_header;
  $env{'form.domain'}='';      return OK if $r->header_only;
  $env{'form.username'}='';  
     }  
 # ----------------------------------------------------------- Process Interface  # Are we re-routing?
     $env{'form.interface'}=~s/\W//g;      my $londocroot = $r->dir_config('lonDocRoot');
       if (-e "$londocroot/lon-status/reroute.txt") {
     my $textbrowsers=$r->dir_config('lonTextBrowsers');   &Apache::lonauth::reroute($r);
     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};   return OK;
           }
     foreach (split(/\:/,$textbrowsers)) {  
  if ($httpbrowser=~/$_/i) {  #
     $env{'form.interface'}='textual';  # If browser sent an old cookie for which the session file had been removed
         }  # check if configuration for user's domain has a portal URL set.  If so
     }  # switch user's log-in to the portal.
   #
     my $fullgraph=($env{'form.interface'} ne 'textual');  
       if (($handle eq '') && ($userdom ne '')) {
     my $iconpath=           my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom);
  &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));          if ($domdefaults{'portal_def'} =~ /^https?\:/) {
               my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
     my $domain = &Apache::lonnet::default_login_domain();                                            {'redirect' => [0,$domdefaults{'portal_def'}],});
     if (($env{'form.domain'}) &&               my $end_page   = &Apache::loncommon::end_page();
  (&Apache::lonnet::domain($env{'form.domain'},'description'))) {              $r->print($start_page.$end_page);
  $domain=$env{'form.domain'};              return OK;
     }          }
     my $role    = $r->dir_config('lonRole');      }
     my $loadlim = $r->dir_config('lonLoadLim');  
     my $servadm = $r->dir_config('lonAdmEMail');      $env{'form.firsturl'} =~ s/(`)/'/g;
     my $lonhost = $r->dir_config('lonHostID');  
     my $tabdir  = $r->dir_config('lonTabDir');  # -------------------------------- Prevent users from attempting to login twice
     my $include = $r->dir_config('lonIncludes');      if ($handle ne '') {
     my $expire  = $r->dir_config('lonExpire');          &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
     my $version = $r->dir_config('lonVersion');   my $start_page =
     my $host_name = &Apache::lonnet::hostname($lonhost);      &Apache::loncommon::start_page('Already logged in');
    my $end_page =
 # --------------------------------------------- Default values for login fields      &Apache::loncommon::end_page();
           my $dest = '/adm/roles';
     my $authusername=($env{'form.username'}?$env{'form.username'}:'');          if ($env{'form.firsturl'} ne '') {
     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);              $dest = $env{'form.firsturl'};
           }
 # ---------------------------------------------------------- Determine own load   $r->print(
     my $loadavg;                    $start_page
     {                   .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
  my $loadfile=Apache::File->new('/proc/loadavg');                   .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
  $loadavg=<$loadfile>;                    '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
     }                   .$end_page
     $loadavg =~ s/\s.*//g;                   );
     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);          return OK;
     my $userloadpercent=&Apache::lonnet::userload();      }
   
 # ------------------------------------------------------- Do the load balancing  # ---------------------------------------------------- No valid token, continue
     my $otherserver= &Apache::lonnet::absolute_url($host_name);  
     my $firsturl=  # ---------------------------- Not possible to really login to domain "public"
     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});      if ($env{'form.domain'} eq 'public') {
 # ---------------------------------------------------------- Are we overloaded?   $env{'form.domain'}='';
     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {   $env{'form.username'}='';
         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);      }
  if ($unloaded) { $otherserver=$unloaded; }  
     }  # ------ Is this page requested because /adm/migrateuser detected an IP change?
       my %sessiondata;
 # ----------------------------------------------------------- Get announcements      if ($env{'form.iptoken'}) {
     my $announcements=&Apache::lonnet::getannounce();          %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
 # -------------------------------------------------------- Set login parameters          unless ($sessiondata{'sessionserver'}) {
               my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'});
     my @hexstr=('0','1','2','3','4','5','6','7',              delete($env{'form.iptoken'});
                 '8','9','a','b','c','d','e','f');          }
     my $lkey='';      }
     for (0..7) {  # ----------------------------------------------------------- Process Interface
         $lkey.=$hexstr[rand(15)];      $env{'form.interface'}=~s/\W//g;
     }  
       (undef,undef,undef,undef,undef,undef,my $clientmobile) =
     my $ukey='';          &Apache::loncommon::decode_user_agent();
     for (0..7) {  
         $ukey.=$hexstr[rand(15)];      my $iconpath=
     }   &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
   
     my $lextkey=hex($lkey);      my $lonhost = $r->dir_config('lonHostID');
     if ($lextkey>2147483647) { $lextkey-=4294967296; }      my $domain = &Apache::lonnet::default_login_domain();
       my $defdom = $domain;
     my $uextkey=hex($ukey);      if ($lonhost ne '') {
     if ($uextkey>2147483647) { $uextkey-=4294967296; }          unless ($sessiondata{'sessionserver'}) {
               my $redirect = &check_loginvia($domain,$lonhost);
 # -------------------------------------------------------- Store away log token              if ($redirect) {
     my $tokenextras;                  $r->print($redirect);
     if ($env{'form.role'}) {                  return OK;
         $tokenextras = '&role='.&escape($env{'form.role'});              }
     }          }
     if ($env{'form.symb'}) {      }
         if (!$tokenextras) {  
             $tokenextras = '&';      if (($sessiondata{'domain'}) &&
         }          (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
         $tokenextras .= '&symb='.&escape($env{'form.symb'});          $domain=$sessiondata{'domain'};
     }      } elsif (($env{'form.domain'}) &&
     my $logtoken=Apache::lonnet::reply(   (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
        'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,   $domain=$env{'form.domain'};
        $lonhost);      }
   
 # ------------------- If we cannot talk to ourselves, we are in serious trouble      my $role    = $r->dir_config('lonRole');
       my $loadlim = $r->dir_config('lonLoadLim');
     if ($logtoken eq 'con_lost') {      my $uloadlim= $r->dir_config('lonUserLoadLim');
         my $spares='';      my $servadm = $r->dir_config('lonAdmEMail');
  my $last;      my $tabdir  = $r->dir_config('lonTabDir');
         foreach my $hostid (sort      my $include = $r->dir_config('lonIncludes');
     {      my $expire  = $r->dir_config('lonExpire');
  &Apache::lonnet::hostname($a) cmp      my $version = $r->dir_config('lonVersion');
     &Apache::lonnet::hostname($b);      my $host_name = &Apache::lonnet::hostname($lonhost);
     }  
     keys(%Apache::lonnet::spareid)) {  # --------------------------------------------- Default values for login fields
             next if ($hostid eq $lonhost);     
     my $hostname = &Apache::lonnet::hostname($hostid);      my ($authusername,$authdomain);
     next if ($last eq $hostname);      if ($sessiondata{'username'}) {
             $spares.='<br /><font size="+1"><a href="http://'.          $authusername=$sessiondata{'username'};
                 $hostname.      } else {
                 '/adm/login?domain='.$authdomain.'">'.          $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
                 $hostname.'</a>'.          $authusername=($env{'form.username'}?$env{'form.username'}:'');
                 ' '.&mt('(preferred)').'</font>'.$/;      }
     $last=$hostname;      if ($sessiondata{'domain'}) {
         }          $authdomain=$sessiondata{'domain'};
         $spares.= '<br />';      } else {
  my %all_hostnames = &Apache::lonnet::all_hostnames();          $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
         foreach my $hostid (sort          $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
     {      }
  &Apache::lonnet::hostname($a) cmp  
     &Apache::lonnet::hostname($b);  # ---------------------------------------------------------- Determine own load
     }      my $loadavg;
     keys(%all_hostnames)) {      {
             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});   my $loadfile=Apache::File->new('/proc/loadavg');
     my $hostname = &Apache::lonnet::hostname($hostid);   $loadavg=<$loadfile>;
             next if ($last eq $hostname);      }
             $spares.='<br /><a href="http://'.      $loadavg =~ s/\s.*//g;
                 $hostname.  
                 '/adm/login?domain='.$authdomain.'">'.      my ($loadpercent,$userloadpercent);
                 $hostname.'</a>';      if ($loadlim) {
     $last=$hostname;          $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
         }      }
  $r->print(      if ($uloadlim) {
            '<html>'          $userloadpercent=&Apache::lonnet::userload();
           .'<head><title>'      }
           .&mt('The LearningOnline Network with CAPA')  
           .'</title></head>'      my $firsturl=
           .'<body bgcolor="#FFFFFF">'      ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
           .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'  
           .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'  # ----------------------------------------------------------- Get announcements
           .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'      my $announcements=&Apache::lonnet::getannounce();
           .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'  # -------------------------------------------------------- Set login parameters
           .$spares  
           .'</body>'      my @hexstr=('0','1','2','3','4','5','6','7',
           .'</html>'                  '8','9','a','b','c','d','e','f');
         );      my $lkey='';
         return OK;      for (0..7) {
     }          $lkey.=$hexstr[rand(15)];
       }
 # ----------------------------------------------- Apparently we are in business  
     $servadm=~s/\,/\<br \/\>/g;      my $ukey='';
       for (0..7) {
 # ----------------------------------------------------------- Front page design          $ukey.=$hexstr[rand(15)];
     my $pgbg=      }
       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');  
     my $font=      my $lextkey=hex($lkey);
       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');      if ($lextkey>2147483647) { $lextkey-=4294967296; }
     my $link=  
       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');      my $uextkey=hex($ukey);
     my $vlink=      if ($uextkey>2147483647) { $uextkey-=4294967296; }
       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');  
     my $alink=&Apache::loncommon::designparm('login.alink',$domain);  # -------------------------------------------------------- Store away log token
     my $mainbg=      my $tokenextras;
       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');      if ($env{'form.role'}) {
     my $sidebg=          $tokenextras = '&role='.&escape($env{'form.role'});
       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');      }
     my $textcol =       if ($env{'form.symb'}) {
       ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');          if (!$tokenextras) {
     my $bgcol =              $tokenextras = '&';
       ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');          }
     my $logo=&Apache::loncommon::designparm('login.logo',$domain);          $tokenextras .= '&symb='.&escape($env{'form.symb'});
     my $img=&Apache::loncommon::designparm('login.img',$domain);      }
     my $domainlogo=&Apache::loncommon::domainlogo($domain);      if ($env{'form.iptoken'}) {
     my $login=&Apache::loncommon::designparm('login.login',$domain);          if (!$tokenextras) {
     if ($login eq '') {              $tokenextras = '&&';
         $login = $iconpath.'/'.&mt('userauthentication.gif');          }
     }          $tokenextras .= '&iptoken='.&escape($env{'form.iptoken'});
     my $showbanner = 1;      }
     my $showmainlogo = 1;      my $logtoken=Apache::lonnet::reply(
     if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {         'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
         $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);         $lonhost);
     }  
     if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {  # -- If we cannot talk to ourselves, or hostID does not map to a hostname
         $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);  #    we are in serious trouble
     }  
     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);      if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
     my $showcoursecat =          if ($logtoken eq 'no_such_host') {
         &Apache::loncommon::designparm('login.coursecatalog',$domain);              &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
     my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);          }
     my $shownewuserlink =           my $spares='';
         &Apache::loncommon::designparm('login.newuser',$domain);   my $last;
     my $now=time;          foreach my $hostid (sort
     my $js = (<<ENDSCRIPT);      {
    &Apache::lonnet::hostname($a) cmp
  <script type="text/javascript">      &Apache::lonnet::hostname($b);
  // <![CDATA[      }
     function send()      keys(%Apache::lonnet::spareid)) {
     {              next if ($hostid eq $lonhost);
         this.document.server.elements.uname.value      my $hostname = &Apache::lonnet::hostname($hostid);
        =this.document.client.elements.uname.value;      next if (($last eq $hostname) || ($hostname eq ''));
               $spares.='<br /><font size="+1"><a href="http://'.
         this.document.server.elements.udom.value                  $hostname.
        =this.document.client.elements.udom.value;                  '/adm/login?domain='.$authdomain.'">'.
                   $hostname.'</a>'.
         this.document.server.elements.imagesuppress.value                  ' '.&mt('(preferred)').'</font>'.$/;
        =this.document.client.elements.imagesuppress.checked;      $last=$hostname;
           }
         this.document.server.elements.embedsuppress.value          if ($spares) {
        =this.document.client.elements.embedsuppress.checked;              $spares.= '<br />';
           }
         this.document.server.elements.appletsuppress.value          my %all_hostnames = &Apache::lonnet::all_hostnames();
        =this.document.client.elements.appletsuppress.checked;          foreach my $hostid (sort
       {
         this.document.server.elements.fontenhance.value   &Apache::lonnet::hostname($a) cmp
        =this.document.client.elements.fontenhance.checked;      &Apache::lonnet::hostname($b);
       }
         this.document.server.elements.blackwhite.value      keys(%all_hostnames)) {
        =this.document.client.elements.blackwhite.checked;              next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
               my $hostname = &Apache::lonnet::hostname($hostid);
         this.document.server.elements.remember.value              next if (($last eq $hostname) || ($hostname eq ''));
        =this.document.client.elements.remember.checked;              $spares.='<br /><a href="http://'.
                $hostname.
         uextkey=this.document.client.elements.uextkey.value;               '/adm/login?domain='.$authdomain.'">'.
         lextkey=this.document.client.elements.lextkey.value;               $hostname.'</a>';
         initkeys();              $last=$hostname;
            }
         this.document.server.elements.upass0.value           $r->print(
             =crypted(this.document.client.elements.upass$now.value.substr(0,15));     '<html>'
         this.document.server.elements.upass1.value    .'<head><title>'
             =crypted(this.document.client.elements.upass$now.value.substr(15,15));    .&mt('The LearningOnline Network with CAPA')
         this.document.server.elements.upass2.value    .'</title></head>'
             =crypted(this.document.client.elements.upass$now.value.substr(30,15));    .'<body bgcolor="#FFFFFF">'
     .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
         this.document.client.elements.uname.value='';    .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
         this.document.client.elements.upass$now.value='';    .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
           if ($spares) {
         this.document.server.submit();              $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
         return false;                       .'</p>'
     }                       .$spares);
  // ]]>          }
  </script>          $r->print('</body>'
                    .'</html>'
 ENDSCRIPT          );
           return OK;
 # --------------------------------------------------- Print login screen header      }
   
     my %add_entries = (topmargin    => "0",  # ----------------------------------------------- Apparently we are in business
                        leftmargin   => "0",      $servadm=~s/\,/\<br \/\>/g;
                        marginheight => "0",  
                        marginwidth  => "0",  # ----------------------------------------------------------- Front page design
                        bgcolor      => "$pgbg",      my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
                        text         => "$font",      my $font=&Apache::loncommon::designparm('login.font',$domain);
                        link         => "$link",      my $link=&Apache::loncommon::designparm('login.link',$domain);
                        vlink        => "$vlink",      my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
                        alink        => "$alink",);      my $alink=&Apache::loncommon::designparm('login.alink',$domain);
       my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
     $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,      my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
                                        { 'redirect'       => [$expire,'/adm/roles'],       my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
                                          'add_entries' => \%add_entries,      my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
                                          'only_body'   => 1,}));      my $logo=&Apache::loncommon::designparm('login.logo',$domain);
       my $img=&Apache::loncommon::designparm('login.img',$domain);
 # ----------------------------------------------------------------------- Texts      my $domainlogo=&Apache::loncommon::domainlogo($domain);
       my $showbanner = 1;
 my %lt=&Apache::lonlocal::texthash(      my $showmainlogo = 1;
   'un'  => 'Username',      if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
   'pw'  => 'Password',          $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
   'dom' => 'Domain',      }
   'load' => 'Server Load',      if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
                   'userload' => 'User Load',          $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
                   'about'  => 'About LON-CAPA',      }
                   'access' => 'Accessibility Options',      my $showadminmail;
                   'catalog' => 'Course Catalog',      my @possdoms = &Apache::lonnet::current_machine_domains();
   'log' => 'Log in',      if (grep(/^\Q$domain\E$/,@possdoms)) {
   'help' => 'Log-in Help',          $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
   'serv' => 'Server',      }
                   'servadm' => 'Server Administration',      my $showcoursecat =
                   'helpdesk' => 'Contact Helpdesk',          &Apache::loncommon::designparm('login.coursecatalog',$domain);
                   'forgotpw' => 'Forgot password?',      my $shownewuserlink =
                   'newuser'  => 'New User?',          &Apache::loncommon::designparm('login.newuser',$domain);
                   'options_headline' => 'Select Accessibility Options',      my $showhelpdesk =
                   'sprs_img' => 'Suppress rendering of images',          &Apache::loncommon::designparm('login.helpdesk',$domain);
                   'sprs_applet' => 'Suppress Java applets',      my $now=time;
                   'sprs_embed' => 'Suppress rendering of embedded multimedia',      my $js = (<<ENDSCRIPT);
                   'sprs_font' => 'Increase font size',  
                   'sprs_blackwhite' => 'Switch to black and white mode',  <script type="text/javascript" language="JavaScript">
                   'remember' => 'Remember these settings for next login');  // <![CDATA[
 # -------------------------------------------------- Change password field name  function send()
     my $forgotpw = &forgotpwdisplay(%lt);  {
     my $loginhelp = &loginhelpdisplay(%lt);  this.document.server.elements.uname.value
   =this.document.client.elements.uname.value;
 # ---------------------------------------------------- Serve out DES JavaScript  
     {  this.document.server.elements.udom.value
         my $jsh=Apache::File->new($include."/londes.js");  =this.document.client.elements.udom.value;
         $r->print(<$jsh>);  
     }  uextkey=this.document.client.elements.uextkey.value;
 # ---------------------------------------------------------- Serve rest of page  lextkey=this.document.client.elements.lextkey.value;
   initkeys();
     if ($fullgraph) {  
  $r->print(  if(this.document.server.action.substr(0,5) === 'http:'){
   '<table width="100%" cellpadding="0" cellspacing="0" border="0">');      this.document.server.elements.upass0.value
     }          =getCrypted(this.document.client.elements.upass$now.value);
   } else {
     $r->print(<<ENDSERVERFORM);      this.document.server.elements.upass0.value
   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">          =this.document.client.elements.upass$now.value;
    <input type="hidden" name="logtoken" value="$logtoken" />  }
    <input type="hidden" name="serverid" value="$lonhost" />  
    <input type="hidden" name="interface" value="$env{'form.interface'}" />  this.document.client.elements.uname.value='';
    <input type="hidden" name="uname" value="" />  this.document.client.elements.upass$now.value='';
    <input type="hidden" name="upass0" value="" />  
    <input type="hidden" name="upass1" value="" />  this.document.server.submit();
    <input type="hidden" name="upass2" value="" />  return false;
    <input type="hidden" name="udom" value="" />  }
    <input type="hidden" name="imagesuppress"  value="" />  
    <input type="hidden" name="appletsuppress"  value="" />  function enableInput() {
    <input type="hidden" name="embedsuppress"  value="" />      this.document.client.elements.upass$now.removeAttribute("readOnly");
    <input type="hidden" name="fontenhance"  value="" />      this.document.client.elements.uname.removeAttribute("readOnly");
    <input type="hidden" name="blackwhite"  value="" />      this.document.client.elements.udom.removeAttribute("readOnly");
    <input type="hidden" name="remember"  value="" />      return;
    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />  }
    <input type="hidden" name="localres" value="$env{'form.localres'}" />  
   </form>  // ]]>
 ENDSERVERFORM  </script>
     my $coursecatalog;  
     if (($showcoursecat eq '') || ($showcoursecat)) {  ENDSCRIPT
         $coursecatalog = &coursecatalog_link($lt{'catalog'});  
     }  # --------------------------------------------------- Print login screen header
     my $newuserlink;  
     if ($shownewuserlink) {      my %add_entries = (
         $newuserlink = &newuser_link($lt{'newuser'});         bgcolor      => "$mainbg",
     }         text         => "$font",
     if ($fullgraph) {         link         => "$link",
         $r->print(<<HEADER);         vlink        => "$vlink",
   <!-- The LON-CAPA Header -->         alink        => "$alink",
   <tr>                 onload       => 'javascript:enableInput();',);
   
    <!-- Row 1 Columns 2-4 -->      my ($lonhost_in_use,$headextra,$headextra_exempt,@hosts,%defaultdomconf);
    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg">      @hosts = &Apache::lonnet::current_machine_ids();
 HEADER      $lonhost_in_use = $lonhost;
         if ($showbanner) {      if (@hosts > 1) {
             $r->print(<<ENDBANNER);          foreach my $hostid (@hosts) {
 <img src="$img" border="0" alt="The Learning Online Network with CAPA" />              if (&Apache::lonnet::host_domain($hostid) eq $defdom) {
 ENDBANNER                  $lonhost_in_use = $hostid;
         }                  last;
         $r->print(<<ENDSTART);              }
    </td>          }
   </tr>      }
       %defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
   <!-- The gray bar that starts the two table frames -->      $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use};
   <tr>      $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use};
       if ($headextra) {
    <!-- Row 2 Column 1 -->          my $omitextra;
    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>          if ($headextra_exempt ne '') {
               my @exempt = split(',',$headextra_exempt);
    <!-- Row 2 Column 2 -->              my $ip = $ENV{'REMOTE_ADDR'};
    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>              if (grep(/^\Q$ip\E$/,@exempt)) {
                   $omitextra = 1;
    <!-- Row 2 Column 3 -->              }
    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>          }
           unless ($omitextra) {
    <!-- Row 2 Column 4 -->              my $confname = $defdom.'-domainconfig';
    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>              if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) {
   </tr>                  my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
   <tr>                  unless ($extra eq '-1') {
                          $js .= "\n".$extra."\n";
    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->                  }
    <!-- Row 3 Column 1 -->              }
    <td valign="top" height="60" align="left" bgcolor="$sidebg">          }
     <table cellpadding="0" cellspacing="2" border="0">      }
      <tr>  
       <td>&nbsp;</td>      $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>         { 'redirect'       => [$expire,'/adm/roles'],
      </tr>   'add_entries' => \%add_entries,
      <tr>   'only_body'   => 1,}));
       <td>&nbsp;</td>  
       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>  # ----------------------------------------------------------------------- Texts
      </tr>$coursecatalog  
      <tr>      my %lt=&Apache::lonlocal::texthash(
       <td colspan="2">&nbsp;</td>            'un'       => 'Username',
      </tr>            'pw'       => 'Password',
     </table>            'dom'      => 'Domain',
    </td>            'perc'     => 'percent',
    <!-- The shaded space between the two main columns -->            'load'     => 'Server Load',
    <!-- Row 3 Column 2 -->            'userload' => 'User Load',
    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>            'catalog'  => 'Course/Community Catalog',
             'log'      => 'Log in',
    <!-- The right main column holding the large LON-CAPA logo-->            'help'     => 'Log-in Help',
    <!-- Rows 3-4 Column 3 -->            'serv'     => 'Server',
    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">            'servadm'  => 'Server Administration',
 ENDSTART            'helpdesk' => 'Contact Helpdesk',
         if ($showmainlogo) {            'forgotpw' => 'Forgot password?',
             $r->print(<<ENDLOGO);            'newuser'  => 'New User?',
     <center>         );
      <img src="$logo" alt="" />  # -------------------------------------------------- Change password field name
     </center>  
 ENDLOGO      my $forgotpw = &forgotpwdisplay(%lt);
         }      $forgotpw .= '<br />' if $forgotpw;
         $r->print(<<ENDTOP);      my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
    </td>      if ($loginhelp) {
           $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
    <!-- Row 3 Column 4 -->      }
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>  
   </tr>  # ---------------------------------------------------- Serve out DES JavaScript
   <tr>      {
       my $jsh=Apache::File->new($include."/londes.js");
    <!-- The entry form -->      $r->print(<$jsh>);
    <!-- Row 4 Column 1 -->      }
    <td align="center" valign="middle" bgcolor="$sidebg">  # ---------------------------------------------------------- Serve rest of page
 ENDTOP  
     } else {      $r->print(
         $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1>'      '<div class="LC_Box"'
                  .'<h2>'.&mt('Text-based Interface Login').'</h2>'     .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
                  .$announcements);  );
     }  
     $r->print('<form name="client" action="" onsubmit="return(send())">');      $r->print(<<ENDSERVERFORM);
     unless ($fullgraph) {  <form name="server" action="/adm/authenticate" method="post" target="_top">
         $r->print(<<ENDACCESSOPTIONS);     <input type="hidden" name="logtoken" value="$logtoken" />
 <h3>$lt{'options_headline'}</h3>     <input type="hidden" name="serverid" value="$lonhost" />
 <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />     <input type="hidden" name="uname" value="" />
 <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />     <input type="hidden" name="upass0" value="" />
 <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />     <input type="hidden" name="udom" value="" />
 <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />     <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
 <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />     <input type="hidden" name="localres" value="$env{'form.localres'}" />
 <br />    </form>
 <input type="checkbox" name="remember" /> $lt{'remember'}<hr />  ENDSERVERFORM
 ENDACCESSOPTIONS      my $coursecatalog;
     } else {      if (($showcoursecat eq '') || ($showcoursecat)) {
         $r->print(<<ENDNOOPT);          $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
 <input type="hidden" name="imagesuppress"  value="" />      }
 <input type="hidden" name="embedsuppress"  value="" />      my $newuserlink;
 <input type="hidden" name="appletsuppress"  value="" />      if ($shownewuserlink) {
 <input type="hidden" name="fontenhance"  value="" />          $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
 <input type="hidden" name="blackwhite"  value="" />      }
 <input type="hidden" name="remember"  value="" />      my $logintitle =
 ENDNOOPT          '<h2 class="LC_hcell"'
     }         .' style="background:'.$loginbox_header_bgcol.';'
     my $logintitle;         .' color:'.$loginbox_header_textcol.'">'
     if ($loginheader eq 'text') {         .$lt{'log'}
         $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2">&nbsp;&nbsp;&nbsp;<b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';         .'</h2>';
     } else {  
         $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.      my $noscript_warning='<noscript><span class="LC_warning"><b>'
                       &mt('User Authentication').'" /></td>';                          .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
     }                          .'</b></span></noscript>';
     my $noscript_warning='<td colspan="2" bgcolor="'.$mainbg.'">'      my $helpdeskscript;
                         .'<noscript><div class="LC_warning"><font size="-1">'      my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                         .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')                                         $authdomain,\$helpdeskscript,
                         .'</font></div></noscript></td>';                                         $showhelpdesk,\@possdoms);
     $r->print(<<ENDLOGIN);  
      <input type="hidden" name="lextkey" value="$lextkey" />      my $mobileargs;
      <input type="hidden" name="uextkey" value="$uextkey" />      if ($clientmobile) {
           $mobileargs = 'autocapitalize="off" autocorrect="off"';
      <!-- Start the sub-table for text and input alignment -->      }
      <table border="0" cellspacing="0" cellpadding="0">      my $loginform=(<<LFORM);
       <tr>$logintitle</tr>  <form name="client" action="" onsubmit="return(send())">
       <tr>$noscript_warning</tr>    <input type="hidden" name="lextkey" value="$lextkey" />
       <tr>    <input type="hidden" name="uextkey" value="$uextkey" />
        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>    <b><label for="uname">$lt{'un'}</label>:</b><br />
        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>    <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
       </tr>    <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
       <tr>    <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>    <b><label for="udom">$lt{'dom'}</label>:</b><br />
        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>    <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
       </tr>    <input type="submit" value="$lt{'log'}" />
       <tr>  </form>
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>  LFORM
        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>  
       </tr>      if ($showbanner) {
       <tr>          $r->print(<<HEADER);
        <td bgcolor="$mainbg">&nbsp;</td>  <!-- The LON-CAPA Header -->
        <td bgcolor="$mainbg" valign="bottom" align="center">  <div style="background:$pgbg;margin:0;width:100%;">
         <br />    <img src="$img" border="0" alt="The Learning Online Network with CAPA" class="LC_maxwidth" />
         <input type="submit" value="$lt{'log'}" />  </div>
        </td>  HEADER
       </tr>      }
       <tr>      $r->print(<<ENDTOP);
        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">  <div style="float:left;margin-top:0;">
         $loginhelp  <div class="LC_Box" style="background:$loginbox_bg;">
         $forgotpw    $logintitle
         $newuserlink    $loginform
         <br />    $noscript_warning
        </td>  </div>
       </tr>   
      </table>  <div class="LC_Box" style="padding-top: 10px;">
      <!-- End sub-table -->    $loginhelp
     </form>    $forgotpw
 ENDLOGIN    $contactblock
     if ($fullgraph) {    $newuserlink
         my $helpdeskscript;    $coursecatalog
         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,  </div>
                                   $version,$authdomain,\$helpdeskscript);  </div>
  $r->print(<<ENDDOCUMENT);  
    </td>  <div>
   ENDTOP
    <!-- Row 4 Column 2 -->      if ($showmainlogo) {
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>          $r->print(' <img src="'.$logo.'" alt="" class="LC_maxwidth" />'."\n");
       }
    <!-- Row 4 Column 3 -->  $r->print(<<ENDTOP);
 <td bgcolor="$mainbg">$announcements</td>  $announcements
   </div>
    <!-- Row 4 Column 4 -->  <hr style="clear:both;" />
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>  ENDTOP
   </tr>      my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
   <tr>      $domainrow = <<"END";
         <tr>
    <!-- Row 5 Column 1 -->         <td  align="left" valign="top">
    <td bgcolor="$sidebg" valign="middle" align="left">          <small><b>$lt{'dom'}:&nbsp;</b></small>
      <br />         </td>
      <table border="0" cellspacing="0" cellpadding="0">         <td  align="left" valign="top">
       <tr>          <small><tt>&nbsp;$domain</tt></small>
        <td bgcolor="$sidebg" align="left" valign="top">         </td>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>        </tr>
        </td>  END
        <td bgcolor="$sidebg" align="left" valign="middle">      $serverrow = <<"END";
         <small><tt>&nbsp;$domain</tt></small>        <tr>
        </td>         <td  align="left" valign="top">
       </tr>          <small><b>$lt{'serv'}:&nbsp;</b></small>
       <tr>         </td>
        <td bgcolor="$sidebg" align="left" valign="top">         <td align="left" valign="top">
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>          <small><tt>&nbsp;$lonhost ($role)</tt></small>
        </td>         </td>
        <td bgcolor="$sidebg" align="left" valign="middle">        </tr>
         <small><tt>&nbsp;$lonhost ($role)</tt></small>  END
        </td>      if ($loadlim) {
       </tr>          $loadrow = <<"END";
       <tr>        <tr>
        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">         <td align="left" valign="top">
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small></span>          <small><b>$lt{'load'}:&nbsp;</b></small>
        </td>         </td>
        <td bgcolor="$sidebg" align="left" valign="middle">         <td align="left" valign="top">
         <small><tt>&nbsp;$loadpercent%</tt></small>          <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
        </td>         </td>
       </tr>        </tr>
       <tr>  END
        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">      }
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small></span>      if ($uloadlim) {
        </td>          $userloadrow = <<"END";
        <td bgcolor="$sidebg" align="left" valign="middle">        <tr>
         <small><tt>&nbsp;$userloadpercent%</tt></small>         <td align="left" valign="top">
        </td>          <small><b>$lt{'userload'}:&nbsp;</b></small>
       </tr>         </td>
      </table>         <td align="left" valign="top">
      <br />          <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
     $contactblock         </td>
    </td>        </tr>
   END
    <!-- Row 5 Column 2 -->      }
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>      if (($version ne '') && ($version ne '<!-- VERSION -->')) {
           $versionrow = <<"END";
    <!-- Row 5 Column 3 -->        <tr>
    <td width="100%" valign="bottom" bgcolor="$mainbg">         <td colspan="2" align="left">
 $domainlogo          <small>$version</small>
 </td>         </td>
         </tr>
    <!-- Row 5 Column 4 -->  END
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>      }
   </tr>  
   <tr>      $r->print(<<ENDDOCUMENT);
       <div style="float: left;">
    <!-- Row 6 Column 1 -->       <table border="0" cellspacing="0" cellpadding="0">
    <td bgcolor="$sidebg">&nbsp;</td>  $domainrow
   $serverrow
    <!-- Row 6 Column 2 -->  $loadrow    
    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>  $userloadrow
   $versionrow
    <!-- Row 6 Column 3 -->       </table>
    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>      </div>
       <div style="float: right;">
    <!-- Row 6 Column 4 -->      $domainlogo
    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>      </div>
   </tr>      <br style="clear:both;" />
  </table>   </div>
   
 <script type="text/javascript">  <script type="text/javascript">
 // <![CDATA[  // <![CDATA[
 // the if prevents the script error if the browser can not handle this  // the if prevents the script error if the browser can not handle this
 if ( document.client.uname ) { document.client.uname.focus(); }  if ( document.client.uname ) { document.client.uname.focus(); }
 // ]]>  // ]]>
 </script>  </script>
 $helpdeskscript  $helpdeskscript
   
 ENDDOCUMENT  ENDDOCUMENT
 }      my %endargs = ( 'noredirectlink' => 1, );
     my %endargs = ( 'noredirectlink' => 1, );      $r->print(&Apache::loncommon::end_page(\%endargs));
     $r->print(&Apache::loncommon::end_page(\%endargs));      return OK;
     return OK;  }
 }  
   sub check_loginvia {
 sub contactdisplay {      my ($domain,$lonhost) = @_;
     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;      if ($domain eq '' || $lonhost eq '') {
     my $contactblock;          return;
     my $showhelpdesk = 0;      }
     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};      my %domconfhash = &Apache::loncommon::get_domainconf($domain);
     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {      my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
         $showhelpdesk = 1;      my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
     }      my $output;
     if ($servadm && $showadminmail) {      if ($loginvia ne '') {
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.          my $noredirect;
                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';          my $ip = $ENV{'REMOTE_ADDR'};
     }          if ($ip eq '127.0.0.1') {
     if ($showhelpdesk) {              $noredirect = 1;
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';          } else {
         my $thisurl = &escape('/adm/login');              if ($loginvia_exempt ne '') {
         $$helpdeskscript = <<"ENDSCRIPT";                  my @exempt = split(',',$loginvia_exempt);
 <script type="text/javascript">                  if (grep(/^\Q$ip\E$/,@exempt)) {
 // <![CDATA[                      $noredirect = 1;
 function helpdesk() {                  }
     var codedom = document.client.udom.value;              }
     if (codedom == '') {          }
         codedom = "$authdomain";          unless ($noredirect) {
     }              my ($newhost,$path);
     var querystr = "origurl=$thisurl&codedom="+codedom;              if ($loginvia =~ /:/) {
     document.location.href = "/adm/helpdesk?"+querystr;                  ($newhost,$path) = split(':',$loginvia);
     return;              } else {
 }                  $newhost = $loginvia;
 // ]]>              }
 </script>              if ($newhost ne $lonhost) {
 ENDSCRIPT                  if (&Apache::lonnet::hostname($newhost) ne '') {
     }                      $output = &redirect_page($newhost,$path);
     $contactblock .= <<"ENDBLOCK";                  }
      &nbsp;&nbsp;&nbsp;$version              }
 ENDBLOCK          }
     return $contactblock;      }
 }      return $output;
   }
 sub forgotpwdisplay {  
     my (%lt) = @_;  sub redirect_page {
     my $prompt_for_resetpw = 1;       my ($desthost,$path) = @_;
     if ($prompt_for_resetpw) {      my $protocol = $Apache::lonnet::protocol{$desthost};
         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br />';      $protocol = 'http' if ($protocol ne 'https');
     }      unless ($path =~ m{^/}) {
     return;          $path = '/'.$path;
 }      }
       my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
 sub loginhelpdisplay {      if ($env{'form.firsturl'} ne '') {
     my (%lt) = @_;          $url .='?firsturl='.$env{'form.firsturl'};
     my $login_help = 1;      }
     if ($login_help) {      my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';                                                      {'redirect' => [0,$url],});
     }      my $end_page   = &Apache::loncommon::end_page();
     return;      return $start_page.$end_page;
 }  }
   
 sub coursecatalog_link {  sub contactdisplay {
     my ($linkname) = @_;      my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
     return <<"END";          $possdoms) = @_;
      <tr>      my $contactblock;
       <td>&nbsp;</td>      my $origmail;
       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>      if (ref($possdoms) eq 'ARRAY') {
      </tr>          if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
 END              $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
 }          }
       }
 sub newuser_link {      my $requestmail =
     my ($linkname) = @_;          &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
     return '&nbsp;&nbsp;&nbsp;<a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';                                                   $authdomain,$origmail);
 }      unless ($showhelpdesk eq '0') {
           if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
 1;              $showhelpdesk = 1;
 __END__          } 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.1.106.4.3  
changed lines
  Added in v.1.173

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