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Diff for /loncom/auth/lonlogin.pm between versions 1.106.4.4 and 1.165

version 1.106.4.4, 2010/02/09 17:46:44 version 1.165, 2016/02/17 19:15:39
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # Login Screen  # Login Screen
 #  #
 # $Id$  # $Id$
 #  #
 # Copyright Michigan State University Board of Trustees  # Copyright Michigan State University Board of Trustees
 #  #
 # This file is part of the LearningOnline Network with CAPA (LON-CAPA).  # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 #  #
 # LON-CAPA is free software; you can redistribute it and/or modify  # LON-CAPA is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by  # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or  # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.  # (at your option) any later version.
 #  #
 # LON-CAPA is distributed in the hope that it will be useful,  # LON-CAPA is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of  # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.  # GNU General Public License for more details.
 #  #
 # You should have received a copy of the GNU General Public License  # You should have received a copy of the GNU General Public License
 # along with LON-CAPA; if not, write to the Free Software  # along with LON-CAPA; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #  #
 # /home/httpd/html/adm/gpl.txt  # /home/httpd/html/adm/gpl.txt
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   
 package Apache::lonlogin;  package Apache::lonlogin;
   
 use strict;  use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 use Apache::File ();  use Apache::File ();
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::loncommon();  use Apache::loncommon();
 use Apache::lonauth();  use Apache::lonauth();
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::migrateuser();  use Apache::migrateuser();
 use lib '/home/httpd/lib/perl/';  use lib '/home/httpd/lib/perl/';
 use LONCAPA;  use LONCAPA;
     
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
   
     &Apache::loncommon::get_unprocessed_cgi      &Apache::loncommon::get_unprocessed_cgi
  (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},   (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
       $ENV{'REDIRECT_QUERY_STRING'}),        $ENV{'REDIRECT_QUERY_STRING'}),
  ['interface','username','domain','firsturl','localpath','localres',   ['interface','username','domain','firsturl','localpath','localres',
   'token','role','symb']);    'token','role','symb','iptoken']);
     if (!defined($env{'form.firsturl'})) {      if (!defined($env{'form.firsturl'})) {
         &Apache::lonacc::get_posted_cgi($r,['firsturl']);          &Apache::lonacc::get_posted_cgi($r,['firsturl']);
     }      }
   
 # -- check if they are a migrating user  # -- check if they are a migrating user
     if (defined($env{'form.token'})) {      if (defined($env{'form.token'})) {
  return &Apache::migrateuser::handler($r);   return &Apache::migrateuser::handler($r);
     }      }
   
     &Apache::loncommon::no_cache($r);      &Apache::loncommon::no_cache($r);
     &Apache::lonlocal::get_language_handle($r);      &Apache::lonlocal::get_language_handle($r);
     &Apache::loncommon::content_type($r,'text/html');      &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;      $r->send_http_header;
     return OK if $r->header_only;      return OK if $r->header_only;
   
   
 # Are we re-routing?  # Are we re-routing?
     if (-e '/home/httpd/html/lon-status/reroute.txt') {      my $londocroot = $r->dir_config('lonDocRoot');
  &Apache::lonauth::reroute($r);      if (-e "$londocroot/lon-status/reroute.txt") {
  return OK;   &Apache::lonauth::reroute($r);
     }   return OK;
       }
   
 # -------------------------------- Prevent users from attempting to login twice      $env{'form.firsturl'} =~ s/(`)/'/g;
     my $handle = &Apache::lonnet::check_for_valid_session($r);  
     if ($handle=~/^publicuser\_/) {  # -------------------------------- Prevent users from attempting to login twice
 # For "public user" - remove it, we apparently really want to login      my $handle = &Apache::lonnet::check_for_valid_session($r);
  unlink($r->dir_config('lonIDsDir')."/$handle.id");      if ($handle ne '') {
     } elsif ($handle ne '') {          my $lonidsdir=$r->dir_config('lonIDsDir');
 # Indeed, a valid token is found          if ($handle=~/^publicuser\_/) {
  my $start_page =   # For "public user" - remove it, we apparently really want to login
     &Apache::loncommon::start_page('Already logged in');      unlink($r->dir_config('lonIDsDir')."/$handle.id");
  my $end_page =           } else {
     &Apache::loncommon::end_page();  # Indeed, a valid token is found
         my $dest = '/adm/roles';              &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
         if ($env{'form.firsturl'} ne '') {      my $start_page =
             $dest = $env{'form.firsturl'};          &Apache::loncommon::start_page('Already logged in');
         }      my $end_page =
  $r->print(          &Apache::loncommon::end_page();
                   $start_page              my $dest = '/adm/roles';
                  .'<h1>'.&mt('You are already logged in!').'</h1>'              if ($env{'form.firsturl'} ne '') {
                  .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',                  $dest = $env{'form.firsturl'};
                   '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'              }
                  .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'      $r->print(
                  .$end_page                    $start_page
                  );                   .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
         return OK;                   .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
     }                    '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
                    .$end_page
 # ---------------------------------------------------- No valid token, continue                   );
               return OK;
  # ---------------------------- Not possible to really login to domain "public"          }
     if ($env{'form.domain'} eq 'public') {      }
  $env{'form.domain'}='';  
  $env{'form.username'}='';  # ---------------------------------------------------- No valid token, continue
     }  
 # ----------------------------------------------------------- Process Interface  # ---------------------------- Not possible to really login to domain "public"
     $env{'form.interface'}=~s/\W//g;      if ($env{'form.domain'} eq 'public') {
    $env{'form.domain'}='';
     my $textbrowsers=$r->dir_config('lonTextBrowsers');   $env{'form.username'}='';
     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};      }
       
     foreach (split(/\:/,$textbrowsers)) {  # ------ Is this page requested because /adm/migrateuser detected an IP change?
  if ($httpbrowser=~/$_/i) {      my %sessiondata;
     $env{'form.interface'}='textual';      if ($env{'form.iptoken'}) {
         }          %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
     }          unless ($sessiondata{'sessionserver'}) {
               my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'});
     my $fullgraph=($env{'form.interface'} ne 'textual');              delete($env{'form.iptoken'});
           }
     my $iconpath=       }
  &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));  # ----------------------------------------------------------- Process Interface
       $env{'form.interface'}=~s/\W//g;
     my $domain = &Apache::lonnet::default_login_domain();  
     if (($env{'form.domain'}) &&       (undef,undef,undef,undef,undef,undef,my $clientmobile) =
  (&Apache::lonnet::domain($env{'form.domain'},'description'))) {          &Apache::loncommon::decode_user_agent();
  $domain=$env{'form.domain'};  
     }      my $iconpath=
     my $role    = $r->dir_config('lonRole');   &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
     my $loadlim = $r->dir_config('lonLoadLim');  
     my $servadm = $r->dir_config('lonAdmEMail');      my $lonhost = $r->dir_config('lonHostID');
     my $lonhost = $r->dir_config('lonHostID');      my $domain = &Apache::lonnet::default_login_domain();
     my $tabdir  = $r->dir_config('lonTabDir');      my $defdom = $domain;
     my $include = $r->dir_config('lonIncludes');      if ($lonhost ne '') {
     my $expire  = $r->dir_config('lonExpire');          unless ($sessiondata{'sessionserver'}) {
     my $version = $r->dir_config('lonVersion');              my $redirect = &check_loginvia($domain,$lonhost);
     my $host_name = &Apache::lonnet::hostname($lonhost);              if ($redirect) {
                   $r->print($redirect);
 # --------------------------------------------- Default values for login fields                  return OK;
               }
     my $authusername=($env{'form.username'}?$env{'form.username'}:'');          }
     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);      }
   
 # ---------------------------------------------------------- Determine own load      if (($sessiondata{'domain'}) &&
     my $loadavg;          (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
     {          $domain=$sessiondata{'domain'};
  my $loadfile=Apache::File->new('/proc/loadavg');      } elsif (($env{'form.domain'}) &&
  $loadavg=<$loadfile>;   (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
     }   $domain=$env{'form.domain'};
     $loadavg =~ s/\s.*//g;      }
     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);  
     my $userloadpercent=&Apache::lonnet::userload();      my $role    = $r->dir_config('lonRole');
       my $loadlim = $r->dir_config('lonLoadLim');
 # ------------------------------------------------------- Do the load balancing      my $uloadlim= $r->dir_config('lonUserLoadLim');
     my $otherserver= &Apache::lonnet::absolute_url($host_name);      my $servadm = $r->dir_config('lonAdmEMail');
     my $firsturl=      my $tabdir  = $r->dir_config('lonTabDir');
     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});      my $include = $r->dir_config('lonIncludes');
 # ---------------------------------------------------------- Are we overloaded?      my $expire  = $r->dir_config('lonExpire');
     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {      my $version = $r->dir_config('lonVersion');
         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);      my $host_name = &Apache::lonnet::hostname($lonhost);
  if ($unloaded) { $otherserver=$unloaded; }  
     }  # --------------------------------------------- Default values for login fields
      
 # ----------------------------------------------------------- Get announcements      my ($authusername,$authdomain);
     my $announcements=&Apache::lonnet::getannounce();      if ($sessiondata{'username'}) {
 # -------------------------------------------------------- Set login parameters          $authusername=$sessiondata{'username'};
       } else {
     my @hexstr=('0','1','2','3','4','5','6','7',          $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
                 '8','9','a','b','c','d','e','f');          $authusername=($env{'form.username'}?$env{'form.username'}:'');
     my $lkey='';      }
     for (0..7) {      if ($sessiondata{'domain'}) {
         $lkey.=$hexstr[rand(15)];          $authdomain=$sessiondata{'domain'};
     }      } else {
           $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
     my $ukey='';          $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
     for (0..7) {      }
         $ukey.=$hexstr[rand(15)];  
     }  # ---------------------------------------------------------- Determine own load
       my $loadavg;
     my $lextkey=hex($lkey);      {
     if ($lextkey>2147483647) { $lextkey-=4294967296; }   my $loadfile=Apache::File->new('/proc/loadavg');
    $loadavg=<$loadfile>;
     my $uextkey=hex($ukey);      }
     if ($uextkey>2147483647) { $uextkey-=4294967296; }      $loadavg =~ s/\s.*//g;
   
 # -------------------------------------------------------- Store away log token      my ($loadpercent,$userloadpercent);
     my $tokenextras;      if ($loadlim) {
     if ($env{'form.role'}) {          $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
         $tokenextras = '&role='.&escape($env{'form.role'});      }
     }      if ($uloadlim) {
     if ($env{'form.symb'}) {          $userloadpercent=&Apache::lonnet::userload();
         if (!$tokenextras) {      }
             $tokenextras = '&';  
         }      my $firsturl=
         $tokenextras .= '&symb='.&escape($env{'form.symb'});      ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
     }  
     my $logtoken=Apache::lonnet::reply(  # ----------------------------------------------------------- Get announcements
        'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,      my $announcements=&Apache::lonnet::getannounce();
        $lonhost);  # -------------------------------------------------------- Set login parameters
   
 # ------------------- If we cannot talk to ourselves, we are in serious trouble      my @hexstr=('0','1','2','3','4','5','6','7',
                   '8','9','a','b','c','d','e','f');
     if ($logtoken eq 'con_lost') {      my $lkey='';
         my $spares='';      for (0..7) {
  my $last;          $lkey.=$hexstr[rand(15)];
         foreach my $hostid (sort      }
     {  
  &Apache::lonnet::hostname($a) cmp      my $ukey='';
     &Apache::lonnet::hostname($b);      for (0..7) {
     }          $ukey.=$hexstr[rand(15)];
     keys(%Apache::lonnet::spareid)) {      }
             next if ($hostid eq $lonhost);  
     my $hostname = &Apache::lonnet::hostname($hostid);      my $lextkey=hex($lkey);
     next if ($last eq $hostname);      if ($lextkey>2147483647) { $lextkey-=4294967296; }
             $spares.='<br /><font size="+1"><a href="http://'.  
                 $hostname.      my $uextkey=hex($ukey);
                 '/adm/login?domain='.$authdomain.'">'.      if ($uextkey>2147483647) { $uextkey-=4294967296; }
                 $hostname.'</a>'.  
                 ' '.&mt('(preferred)').'</font>'.$/;  # -------------------------------------------------------- Store away log token
     $last=$hostname;      my $tokenextras;
         }      if ($env{'form.role'}) {
         $spares.= '<br />';          $tokenextras = '&role='.&escape($env{'form.role'});
  my %all_hostnames = &Apache::lonnet::all_hostnames();      }
         foreach my $hostid (sort      if ($env{'form.symb'}) {
     {          if (!$tokenextras) {
  &Apache::lonnet::hostname($a) cmp              $tokenextras = '&';
     &Apache::lonnet::hostname($b);          }
     }          $tokenextras .= '&symb='.&escape($env{'form.symb'});
     keys(%all_hostnames)) {      }
             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});      if ($env{'form.iptoken'}) {
     my $hostname = &Apache::lonnet::hostname($hostid);          if (!$tokenextras) {
             next if ($last eq $hostname);              $tokenextras = '&&';
             $spares.='<br /><a href="http://'.          }
                 $hostname.          $tokenextras .= '&iptoken='.&escape($env{'form.iptoken'});
                 '/adm/login?domain='.$authdomain.'">'.      }
                 $hostname.'</a>';      my $logtoken=Apache::lonnet::reply(
     $last=$hostname;         'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
         }         $lonhost);
  $r->print(  
            '<html>'  # -- If we cannot talk to ourselves, or hostID does not map to a hostname
           .'<head><title>'  #    we are in serious trouble
           .&mt('The LearningOnline Network with CAPA')  
           .'</title></head>'      if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
           .'<body bgcolor="#FFFFFF">'          if ($logtoken eq 'no_such_host') {
           .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'              &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
           .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'          }
           .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'          my $spares='';
           .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'   my $last;
           .$spares          foreach my $hostid (sort
           .'</body>'      {
           .'</html>'   &Apache::lonnet::hostname($a) cmp
         );      &Apache::lonnet::hostname($b);
         return OK;      }
     }      keys(%Apache::lonnet::spareid)) {
               next if ($hostid eq $lonhost);
 # ----------------------------------------------- Apparently we are in business      my $hostname = &Apache::lonnet::hostname($hostid);
     $servadm=~s/\,/\<br \/\>/g;      next if (($last eq $hostname) || ($hostname eq ''));
               $spares.='<br /><font size="+1"><a href="http://'.
 # ----------------------------------------------------------- Front page design                  $hostname.
     my $pgbg=                  '/adm/login?domain='.$authdomain.'">'.
       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');                  $hostname.'</a>'.
     my $font=                  ' '.&mt('(preferred)').'</font>'.$/;
       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');      $last=$hostname;
     my $link=          }
       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');          if ($spares) {
     my $vlink=              $spares.= '<br />';
       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');          }
     my $alink=&Apache::loncommon::designparm('login.alink',$domain);          my %all_hostnames = &Apache::lonnet::all_hostnames();
     my $mainbg=          foreach my $hostid (sort
       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');      {
     my $sidebg=   &Apache::lonnet::hostname($a) cmp
       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');      &Apache::lonnet::hostname($b);
     my $textcol =       }
       ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');      keys(%all_hostnames)) {
     my $bgcol =              next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
       ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');              my $hostname = &Apache::lonnet::hostname($hostid);
     my $logo=&Apache::loncommon::designparm('login.logo',$domain);              next if (($last eq $hostname) || ($hostname eq ''));
     my $img=&Apache::loncommon::designparm('login.img',$domain);              $spares.='<br /><a href="http://'.
     my $domainlogo=&Apache::loncommon::domainlogo($domain);               $hostname.
     my $login=&Apache::loncommon::designparm('login.login',$domain);               '/adm/login?domain='.$authdomain.'">'.
     if ($login eq '') {               $hostname.'</a>';
         $login = $iconpath.'/'.&mt('userauthentication.gif');              $last=$hostname;
     }           }
     my $showbanner = 1;           $r->print(
     my $showmainlogo = 1;     '<html>'
     if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {    .'<head><title>'
         $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);    .&mt('The LearningOnline Network with CAPA')
     }    .'</title></head>'
     if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {    .'<body bgcolor="#FFFFFF">'
         $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);    .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
     }    .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);    .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
     my $showcoursecat =          if ($spares) {
         &Apache::loncommon::designparm('login.coursecatalog',$domain);              $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
     my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);                       .'</p>'
     my $shownewuserlink =                        .$spares);
         &Apache::loncommon::designparm('login.newuser',$domain);          }
     my $now=time;          $r->print('</body>'
     my $js = (<<ENDSCRIPT);                   .'</html>'
           );
  <script type="text/javascript">          return OK;
  // <![CDATA[      }
     function send()  
     {  # ----------------------------------------------- Apparently we are in business
         this.document.server.elements.uname.value      $servadm=~s/\,/\<br \/\>/g;
        =this.document.client.elements.uname.value;  
   # ----------------------------------------------------------- Front page design
         this.document.server.elements.udom.value      my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
        =this.document.client.elements.udom.value;      my $font=&Apache::loncommon::designparm('login.font',$domain);
       my $link=&Apache::loncommon::designparm('login.link',$domain);
         this.document.server.elements.imagesuppress.value      my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
        =this.document.client.elements.imagesuppress.checked;      my $alink=&Apache::loncommon::designparm('login.alink',$domain);
       my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
         this.document.server.elements.embedsuppress.value      my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
        =this.document.client.elements.embedsuppress.checked;      my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
       my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
         this.document.server.elements.appletsuppress.value      my $logo=&Apache::loncommon::designparm('login.logo',$domain);
        =this.document.client.elements.appletsuppress.checked;      my $img=&Apache::loncommon::designparm('login.img',$domain);
       my $domainlogo=&Apache::loncommon::domainlogo($domain);
         this.document.server.elements.fontenhance.value      my $showbanner = 1;
        =this.document.client.elements.fontenhance.checked;      my $showmainlogo = 1;
       if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
         this.document.server.elements.blackwhite.value          $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
        =this.document.client.elements.blackwhite.checked;      }
       if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
         this.document.server.elements.remember.value          $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
        =this.document.client.elements.remember.checked;      }
       my $showadminmail;
         uextkey=this.document.client.elements.uextkey.value;      my @possdoms = &Apache::lonnet::current_machine_domains();
         lextkey=this.document.client.elements.lextkey.value;      if (grep(/^\Q$domain\E$/,@possdoms)) {
         initkeys();          $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
       }
         this.document.server.elements.upass0.value      my $showcoursecat =
             =crypted(this.document.client.elements.upass$now.value.substr(0,15));          &Apache::loncommon::designparm('login.coursecatalog',$domain);
         this.document.server.elements.upass1.value      my $shownewuserlink =
             =crypted(this.document.client.elements.upass$now.value.substr(15,15));          &Apache::loncommon::designparm('login.newuser',$domain);
         this.document.server.elements.upass2.value      my $showhelpdesk =
             =crypted(this.document.client.elements.upass$now.value.substr(30,15));          &Apache::loncommon::designparm('login.helpdesk',$domain);
       my $now=time;
         this.document.client.elements.uname.value='';      my $js = (<<ENDSCRIPT);
         this.document.client.elements.upass$now.value='';  
   <script type="text/javascript" language="JavaScript">
         this.document.server.submit();  // <![CDATA[
         return false;  function send()
     }  {
  // ]]>  this.document.server.elements.uname.value
  </script>  =this.document.client.elements.uname.value;
   
 ENDSCRIPT  this.document.server.elements.udom.value
   =this.document.client.elements.udom.value;
 # --------------------------------------------------- Print login screen header  
   uextkey=this.document.client.elements.uextkey.value;
     my %add_entries = (topmargin    => "0",  lextkey=this.document.client.elements.lextkey.value;
                        leftmargin   => "0",  initkeys();
                        marginheight => "0",  
                        marginwidth  => "0",  if(this.document.server.action.substr(0,5) === 'http:'){
                        bgcolor      => "$pgbg",      this.document.server.elements.upass0.value
                        text         => "$font",          =getCrypted(this.document.client.elements.upass$now.value);
                        link         => "$link",  }
                        vlink        => "$vlink",  
                        alink        => "$alink",);  this.document.client.elements.uname.value='';
   this.document.client.elements.upass$now.value='';
     $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,  
                                        { 'redirect'       => [$expire,'/adm/roles'],   this.document.server.submit();
                                          'add_entries' => \%add_entries,  return false;
                                          'only_body'   => 1,}));  }
   
 # ----------------------------------------------------------------------- Texts  function enableInput() {
       this.document.client.elements.upass$now.removeAttribute("readOnly");
 my %lt=&Apache::lonlocal::texthash(      this.document.client.elements.uname.removeAttribute("readOnly");
   'un'  => 'Username',      this.document.client.elements.udom.removeAttribute("readOnly");
   'pw'  => 'Password',      return;
   'dom' => 'Domain',  }
   'load' => 'Server Load',  
                   'userload' => 'User Load',  // ]]>
                   'about'  => 'About LON-CAPA',  </script>
                   'access' => 'Accessibility Options',  
                   'catalog' => 'Course Catalog',  ENDSCRIPT
   'log' => 'Log in',  
   'help' => 'Log-in Help',  # --------------------------------------------------- Print login screen header
   'serv' => 'Server',  
                   'servadm' => 'Server Administration',      my %add_entries = (
                   'helpdesk' => 'Contact Helpdesk',         bgcolor      => "$mainbg",
                   'forgotpw' => 'Forgot password?',         text         => "$font",
                   'newuser'  => 'New User?',         link         => "$link",
                   'options_headline' => 'Select Accessibility Options',         vlink        => "$vlink",
                   'sprs_img' => 'Suppress rendering of images',         alink        => "$alink",
                   'sprs_applet' => 'Suppress Java applets',                 onload       => 'javascript:enableInput();',);
                   'sprs_embed' => 'Suppress rendering of embedded multimedia',  
                   'sprs_font' => 'Increase font size',      my ($lonhost_in_use,$headextra,$headextra_exempt,@hosts,%defaultdomconf);
                   'sprs_blackwhite' => 'Switch to black and white mode',      @hosts = &Apache::lonnet::current_machine_ids();
                   'remember' => 'Remember these settings for next login');      $lonhost_in_use = $lonhost;
 # -------------------------------------------------- Change password field name      if (@hosts > 1) {
     my $forgotpw = &forgotpwdisplay(%lt);          foreach my $hostid (@hosts) {
     my $loginhelp = &loginhelpdisplay(%lt);              if (&Apache::lonnet::host_domain($hostid) eq $defdom) {
                   $lonhost_in_use = $hostid;
 # ---------------------------------------------------- Serve out DES JavaScript                  last;
     {              }
         my $jsh=Apache::File->new($include."/londes.js");          }
         $r->print(<$jsh>);      }
     }      %defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
 # ---------------------------------------------------------- Serve rest of page      $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use};
       $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use};
     if ($fullgraph) {      if ($headextra) {
  $r->print(          my $omitextra;
   '<table width="100%" cellpadding="0" cellspacing="0" border="0">');          if ($headextra_exempt ne '') {
     }              my @exempt = split(',',$headextra_exempt);
               my $ip = $ENV{'REMOTE_ADDR'};
     $r->print(<<ENDSERVERFORM);              if (grep(/^\Q$ip\E$/,@exempt)) {
   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">                  $omitextra = 1;
    <input type="hidden" name="logtoken" value="$logtoken" />              }
    <input type="hidden" name="serverid" value="$lonhost" />          }
    <input type="hidden" name="interface" value="$env{'form.interface'}" />          unless ($omitextra) {
    <input type="hidden" name="uname" value="" />              my $confname = $defdom.'-domainconfig';
    <input type="hidden" name="upass0" value="" />              if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) {
    <input type="hidden" name="upass1" value="" />                  my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
    <input type="hidden" name="upass2" value="" />                  unless ($extra eq '-1') {
    <input type="hidden" name="udom" value="" />                      $js .= "\n".$extra."\n";
    <input type="hidden" name="imagesuppress"  value="" />                  }
    <input type="hidden" name="appletsuppress"  value="" />              }
    <input type="hidden" name="embedsuppress"  value="" />          }
    <input type="hidden" name="fontenhance"  value="" />      }
    <input type="hidden" name="blackwhite"  value="" />  
    <input type="hidden" name="remember"  value="" />      $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />         { 'redirect'       => [$expire,'/adm/roles'],
    <input type="hidden" name="localres" value="$env{'form.localres'}" />   'add_entries' => \%add_entries,
   </form>   'only_body'   => 1,}));
 ENDSERVERFORM  
     my $coursecatalog;  # ----------------------------------------------------------------------- Texts
     if (($showcoursecat eq '') || ($showcoursecat)) {  
         $coursecatalog = &coursecatalog_link($lt{'catalog'});      my %lt=&Apache::lonlocal::texthash(
     }            'un'       => 'Username',
     my $newuserlink;            'pw'       => 'Password',
     if ($shownewuserlink) {            'dom'      => 'Domain',
         $newuserlink = &newuser_link($lt{'newuser'});            'perc'     => 'percent',
     }            'load'     => 'Server Load',
     if ($fullgraph) {            'userload' => 'User Load',
         $r->print(<<HEADER);            'catalog'  => 'Course/Community Catalog',
   <!-- The LON-CAPA Header -->            'log'      => 'Log in',
   <tr>            'help'     => 'Log-in Help',
             'serv'     => 'Server',
    <!-- Row 1 Columns 2-4 -->            'servadm'  => 'Server Administration',
    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg">            'helpdesk' => 'Contact Helpdesk',
 HEADER            'forgotpw' => 'Forgot password?',
         if ($showbanner) {            'newuser'  => 'New User?',
             $r->print(<<ENDBANNER);         );
 <img src="$img" border="0" alt="The Learning Online Network with CAPA" />  # -------------------------------------------------- Change password field name
 ENDBANNER  
         }      my $forgotpw = &forgotpwdisplay(%lt);
         $r->print(<<ENDSTART);      $forgotpw .= '<br />' if $forgotpw;
    </td>      my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
   </tr>      if ($loginhelp) {
           $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
   <!-- The gray bar that starts the two table frames -->      }
   <tr>  
   # ---------------------------------------------------- Serve out DES JavaScript
    <!-- Row 2 Column 1 -->      {
    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>      my $jsh=Apache::File->new($include."/londes.js");
       $r->print(<$jsh>);
    <!-- Row 2 Column 2 -->      }
    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>  # ---------------------------------------------------------- Serve rest of page
   
    <!-- Row 2 Column 3 -->      $r->print(
    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>      '<div class="LC_Box"'
      .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
    <!-- Row 2 Column 4 -->  );
    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>  
   </tr>      $r->print(<<ENDSERVERFORM);
   <tr>  <form name="server" action="/adm/authenticate" method="post" target="_top">
         <input type="hidden" name="logtoken" value="$logtoken" />
    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->     <input type="hidden" name="serverid" value="$lonhost" />
    <!-- Row 3 Column 1 -->     <input type="hidden" name="uname" value="" />
    <td valign="top" height="60" align="left" bgcolor="$sidebg">     <input type="hidden" name="upass0" value="" />
     <table cellpadding="0" cellspacing="2" border="0">     <input type="hidden" name="udom" value="" />
      <tr>     <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
       <td>&nbsp;</td>     <input type="hidden" name="localres" value="$env{'form.localres'}" />
       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>    </form>
      </tr>  ENDSERVERFORM
      <tr>      my $coursecatalog;
       <td>&nbsp;</td>      if (($showcoursecat eq '') || ($showcoursecat)) {
       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>          $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
      </tr>$coursecatalog      }
      <tr>      my $newuserlink;
       <td colspan="2">&nbsp;</td>      if ($shownewuserlink) {
      </tr>          $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
     </table>      }
    </td>      my $logintitle =
    <!-- The shaded space between the two main columns -->          '<h2 class="LC_hcell"'
    <!-- Row 3 Column 2 -->         .' style="background:'.$loginbox_header_bgcol.';'
    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>         .' color:'.$loginbox_header_textcol.'">'
          .$lt{'log'}
    <!-- The right main column holding the large LON-CAPA logo-->         .'</h2>';
    <!-- Rows 3-4 Column 3 -->  
    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">      my $noscript_warning='<noscript><span class="LC_warning"><b>'
 ENDSTART                          .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
         if ($showmainlogo) {                          .'</b></span></noscript>';
             $r->print(<<ENDLOGO);      my $helpdeskscript;
     <center>      my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
      <img src="$logo" alt="" />                                         $authdomain,\$helpdeskscript,
     </center>                                         $showhelpdesk,\@possdoms);
 ENDLOGO  
         }      my $mobileargs;
         $r->print(<<ENDTOP);      if ($clientmobile) {
    </td>          $mobileargs = 'autocapitalize="off" autocorrect="off"';
       }
    <!-- Row 3 Column 4 -->      my $loginform=(<<LFORM);
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>  <form name="client" action="" onsubmit="return(send())">
   </tr>    <input type="hidden" name="lextkey" value="$lextkey" />
   <tr>    <input type="hidden" name="uextkey" value="$uextkey" />
     <b><label for="uname">$lt{'un'}</label>:</b><br />
    <!-- The entry form -->    <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
    <!-- Row 4 Column 1 -->    <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
    <td align="center" valign="middle" bgcolor="$sidebg">    <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
 ENDTOP    <b><label for="udom">$lt{'dom'}</label>:</b><br />
     } else {    <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
         $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1>'    <input type="submit" value="$lt{'log'}" />
                  .'<h2>'.&mt('Text-based Interface Login').'</h2>'  </form>
                  .$announcements);  LFORM
     }  
     $r->print('<form name="client" action="" onsubmit="return(send())">');      if ($showbanner) {
     unless ($fullgraph) {          $r->print(<<HEADER);
         $r->print(<<ENDACCESSOPTIONS);  <!-- The LON-CAPA Header -->
 <h3>$lt{'options_headline'}</h3>  <div style="background:$pgbg;margin:0;width:100%;">
 <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />    <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
 <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />  </div>
 <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />  HEADER
 <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />      }
 <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />      $r->print(<<ENDTOP);
 <br />  <div style="float:left;margin-top:0;">
 <input type="checkbox" name="remember" /> $lt{'remember'}<hr />  <div class="LC_Box" style="background:$loginbox_bg;">
 ENDACCESSOPTIONS    $logintitle
     } else {    $loginform
         $r->print(<<ENDNOOPT);    $noscript_warning
 <input type="hidden" name="imagesuppress"  value="" />  </div>
 <input type="hidden" name="embedsuppress"  value="" />   
 <input type="hidden" name="appletsuppress"  value="" />  <div class="LC_Box" style="padding-top: 10px;">
 <input type="hidden" name="fontenhance"  value="" />    $loginhelp
 <input type="hidden" name="blackwhite"  value="" />    $forgotpw
 <input type="hidden" name="remember"  value="" />    $contactblock
 ENDNOOPT    $newuserlink
     }    $coursecatalog
     my $logintitle;  </div>
     if ($loginheader eq 'text') {  </div>
         $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2">&nbsp;&nbsp;&nbsp;<b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';  
     } else {  <div>
         $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.  ENDTOP
                       &mt('User Authentication').'" /></td>';      if ($showmainlogo) {
     }          $r->print(' <img src="'.$logo.'" alt="" />'."\n");
     my $noscript_warning='<td colspan="2" bgcolor="'.$mainbg.'">'      }
                         .'<noscript><div class="LC_warning"><font size="-1">'  $r->print(<<ENDTOP);
                         .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')  $announcements
                         .'</font></div></noscript></td>';  </div>
     $r->print(<<ENDLOGIN);  <hr style="clear:both;" />
      <input type="hidden" name="lextkey" value="$lextkey" />  ENDTOP
      <input type="hidden" name="uextkey" value="$uextkey" />      my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
       $domainrow = <<"END";
      <!-- Start the sub-table for text and input alignment -->        <tr>
      <table border="0" cellspacing="0" cellpadding="0">         <td  align="left" valign="top">
       <tr>$logintitle</tr>          <small><b>$lt{'dom'}:&nbsp;</b></small>
       <tr>$noscript_warning</tr>         </td>
       <tr>         <td  align="left" valign="top">
        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>          <small><tt>&nbsp;$domain</tt></small>
        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>         </td>
       </tr>        </tr>
       <tr>  END
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>      $serverrow = <<"END";
        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>        <tr>
       </tr>         <td  align="left" valign="top">
       <tr>          <small><b>$lt{'serv'}:&nbsp;</b></small>
        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>         </td>
        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>         <td align="left" valign="top">
       </tr>          <small><tt>&nbsp;$lonhost ($role)</tt></small>
       <tr>         </td>
        <td bgcolor="$mainbg">&nbsp;</td>        </tr>
        <td bgcolor="$mainbg" valign="bottom" align="center">  END
         <br />      if ($loadlim) {
         <input type="submit" value="$lt{'log'}" />          $loadrow = <<"END";
        </td>        <tr>
       </tr>         <td align="left" valign="top">
       <tr>          <small><b>$lt{'load'}:&nbsp;</b></small>
        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">         </td>
         $loginhelp         <td align="left" valign="top">
         $forgotpw          <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
         $newuserlink         </td>
         <br />        </tr>
        </td>  END
       </tr>      }
      </table>      if ($uloadlim) {
      <!-- End sub-table -->          $userloadrow = <<"END";
     </form>        <tr>
 ENDLOGIN         <td align="left" valign="top">
     if ($fullgraph) {          <small><b>$lt{'userload'}:&nbsp;</b></small>
         my $helpdeskscript;         </td>
         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,         <td align="left" valign="top">
                                   $version,$authdomain,\$helpdeskscript);          <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
  $r->print(<<ENDDOCUMENT);         </td>
    </td>        </tr>
   END
    <!-- Row 4 Column 2 -->      }
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>      if (($version ne '') && ($version ne '<!-- VERSION -->')) {
           $versionrow = <<"END";
    <!-- Row 4 Column 3 -->        <tr>
 <td bgcolor="$mainbg">$announcements</td>         <td colspan="2" align="left">
           <small>$version</small>
    <!-- Row 4 Column 4 -->         </td>
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>        </tr>
   </tr>  END
   <tr>      }
   
    <!-- Row 5 Column 1 -->      $r->print(<<ENDDOCUMENT);
    <td bgcolor="$sidebg" valign="middle" align="left">      <div style="float: left;">
      <br />       <table border="0" cellspacing="0" cellpadding="0">
      <table border="0" cellspacing="0" cellpadding="0">  $domainrow
       <tr>  $serverrow
        <td bgcolor="$sidebg" align="left" valign="top">  $loadrow    
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>  $userloadrow
        </td>  $versionrow
        <td bgcolor="$sidebg" align="left" valign="middle">       </table>
         <small><tt>&nbsp;$domain</tt></small>      </div>
        </td>      <div style="float: right;">
       </tr>      $domainlogo
       <tr>      </div>
        <td bgcolor="$sidebg" align="left" valign="top">      <br style="clear:both;" />
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>   </div>
        </td>  
        <td bgcolor="$sidebg" align="left" valign="middle">  <script type="text/javascript">
         <small><tt>&nbsp;$lonhost ($role)</tt></small>  // <![CDATA[
        </td>  // the if prevents the script error if the browser can not handle this
       </tr>  if ( document.client.uname ) { document.client.uname.focus(); }
       <tr>  // ]]>
        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">  </script>
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small></span>  $helpdeskscript
        </td>  
        <td bgcolor="$sidebg" align="left" valign="middle">  ENDDOCUMENT
         <small><tt>&nbsp;$loadpercent%</tt></small>      my %endargs = ( 'noredirectlink' => 1, );
        </td>      $r->print(&Apache::loncommon::end_page(\%endargs));
       </tr>      return OK;
       <tr>  }
        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">  
         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small></span>  sub check_loginvia {
        </td>      my ($domain,$lonhost) = @_;
        <td bgcolor="$sidebg" align="left" valign="middle">      if ($domain eq '' || $lonhost eq '') {
         <small><tt>&nbsp;$userloadpercent%</tt></small>          return;
        </td>      }
       </tr>      my %domconfhash = &Apache::loncommon::get_domainconf($domain);
      </table>      my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
      <br />      my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
     $contactblock      my $output;
    </td>      if ($loginvia ne '') {
           my $noredirect;
    <!-- Row 5 Column 2 -->          my $ip = $ENV{'REMOTE_ADDR'};
    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>          if ($ip eq '127.0.0.1') {
               $noredirect = 1;
    <!-- Row 5 Column 3 -->          } else {
    <td width="100%" valign="bottom" bgcolor="$mainbg">              if ($loginvia_exempt ne '') {
 $domainlogo                  my @exempt = split(',',$loginvia_exempt);
 </td>                  if (grep(/^\Q$ip\E$/,@exempt)) {
                       $noredirect = 1;
    <!-- Row 5 Column 4 -->                  }
    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>              }
   </tr>          }
   <tr>          unless ($noredirect) {
               my ($newhost,$path);
    <!-- Row 6 Column 1 -->              if ($loginvia =~ /:/) {
    <td bgcolor="$sidebg">&nbsp;</td>                  ($newhost,$path) = split(':',$loginvia);
               } else {
    <!-- Row 6 Column 2 -->                  $newhost = $loginvia;
    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>              }
               if ($newhost ne $lonhost) {
    <!-- Row 6 Column 3 -->                  if (&Apache::lonnet::hostname($newhost) ne '') {
    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>                      $output = &redirect_page($newhost,$path);
                   }
    <!-- Row 6 Column 4 -->              }
    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>          }
   </tr>      }
  </table>      return $output;
   }
 <script type="text/javascript">  
 // <![CDATA[  sub redirect_page {
 // the if prevents the script error if the browser can not handle this      my ($desthost,$path) = @_;
 if ( document.client.uname ) { document.client.uname.focus(); }      my $protocol = $Apache::lonnet::protocol{$desthost};
 // ]]>      $protocol = 'http' if ($protocol ne 'https');
 </script>      unless ($path =~ m{^/}) {
 $helpdeskscript          $path = '/'.$path;
       }
 ENDDOCUMENT      my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
 }      if ($env{'form.firsturl'} ne '') {
     my %endargs = ( 'noredirectlink' => 1, );          $url .='?firsturl='.$env{'form.firsturl'};
     $r->print(&Apache::loncommon::end_page(\%endargs));      }
     return OK;      my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
 }                                                      {'redirect' => [0,$url],});
       my $end_page   = &Apache::loncommon::end_page();
 sub contactdisplay {      return $start_page.$end_page;
     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;  }
     my $contactblock;  
     my $showhelpdesk = 0;  sub contactdisplay {
     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};      my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {          $possdoms) = @_;
         $showhelpdesk = 1;      my $contactblock;
     }      my $origmail;
     if ($servadm && $showadminmail) {      if (ref($possdoms) eq 'ARRAY') {
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.          if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';              $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
     }          }
     if ($showhelpdesk) {      }
         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';      my $requestmail =
         my $thisurl = &escape('/adm/login');          &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
         $$helpdeskscript = <<"ENDSCRIPT";                                                   $authdomain,$origmail);
 <script type="text/javascript">      unless ($showhelpdesk eq '0') {
 // <![CDATA[          if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
 function helpdesk() {              $showhelpdesk = 1;
     var codedom = document.client.udom.value;          } else {
     if (codedom == '') {              $showhelpdesk = 0;
         codedom = "$authdomain";          }
     }      }
     var querystr = "origurl=$thisurl&codedom="+codedom;      if ($servadm && $showadminmail) {
     document.location.href = "/adm/helpdesk?"+querystr;          $contactblock .= $$lt{'servadm'}.':<br />'.
     return;                           '<tt>'.$servadm.'</tt><br />';
 }      }
 // ]]>      if ($showhelpdesk) {
 </script>          $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
 ENDSCRIPT          my $thisurl = &escape('/adm/login');
     }          $$helpdeskscript = <<"ENDSCRIPT";
     $contactblock .= <<"ENDBLOCK";  <script type="text/javascript">
      &nbsp;&nbsp;&nbsp;$version  // <![CDATA[
 ENDBLOCK  function helpdesk() {
     return $contactblock;      var possdom = document.client.udom.value;
 }      var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),'');
       if (codedom == '') {
 sub forgotpwdisplay {          codedom = "$authdomain";
     my (%lt) = @_;      }
     my $prompt_for_resetpw = 1;       var querystr = "origurl=$thisurl&codedom="+codedom;
     if ($prompt_for_resetpw) {      document.location.href = "/adm/helpdesk?"+querystr;
         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br />';      return;
     }  }
     return;  // ]]>
 }  </script>
   ENDSCRIPT
 sub loginhelpdisplay {      }
     my (%lt) = @_;      return $contactblock;
     my $login_help = 1;  }
     if ($login_help) {  
         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';  sub forgotpwdisplay {
     }      my (%lt) = @_;
     return;      my $prompt_for_resetpw = 1;
 }      if ($prompt_for_resetpw) {
           return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
 sub coursecatalog_link {      }
     my ($linkname) = @_;      return;
     return <<"END";  }
      <tr>  
       <td>&nbsp;</td>  sub coursecatalog_link {
       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>      my ($linkname) = @_;
      </tr>      return <<"END";
 END        <a href="/adm/coursecatalog">$linkname</a>
 }  END
   }
 sub newuser_link {  
     my ($linkname) = @_;  sub newuser_link {
     return '&nbsp;&nbsp;&nbsp;<a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';      my ($linkname) = @_;
 }      return '<a href="/adm/createaccount">'.$linkname.'</a>';
   }
 1;  
 __END__  1;
   __END__
Removed from v.1.106.4.4  
changed lines
  Added in v.1.165

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