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Diff for /loncom/auth/lonlogin.pm between versions 1.1 and 1.127

version 1.1, 1999/10/13 17:48:52 version 1.127, 2009/10/06 23:43:21
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # Login Screen  # Login Screen
 # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer  
 #  #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # 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
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # 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::lonauth();
   use Apache::lonlocal;
   use Apache::migrateuser();
   use lib '/home/httpd/lib/perl/';
   use LONCAPA;
    
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
     $r->content_type('text/html');  
       &Apache::loncommon::get_unprocessed_cgi
    (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
         $ENV{'REDIRECT_QUERY_STRING'}),
    ['interface','username','domain','firsturl','localpath','localres',
     'token','role','symb']);
       if (!defined($env{'form.firsturl'})) {
           &Apache::lonacc::get_posted_cgi($r,['firsturl']);
       }
   
   # -- check if they are a migrating user
       if (defined($env{'form.token'})) {
    return &Apache::migrateuser::handler($r);
       }
   
       &Apache::loncommon::no_cache($r);
       &Apache::lonlocal::get_language_handle($r);
       &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;
   
     my $iconpath= $r->dir_config('lonIconsURL');  
     my $domain  = $r->dir_config('lonDefDomain');  # Are we re-routing?
       if (-e '/home/httpd/html/lon-status/reroute.txt') {
    &Apache::lonauth::reroute($r);
    return OK;
       }
   
   
   # -------------------------------- Prevent users from attempting to login twice
       my $handle = &Apache::lonnet::check_for_valid_session($r);
       if ($handle=~/^publicuser\_/) {
   # For "public user" - remove it, we apparently really want to login
    unlink($r->dir_config('lonIDsDir')."/$handle.id");
       } elsif ($handle ne '') {
   # Indeed, a valid token is found
    my $start_page = 
       &Apache::loncommon::start_page('Already logged in');
    my $end_page = 
       &Apache::loncommon::end_page();
           my $dest = '/adm/roles';
           if ($env{'form.firsturl'} ne '') {
               $dest = $env{'form.firsturl'}; 
           }
    $r->print(
                     $start_page
                    .'<h1>'.&mt('You are already logged in!').'</h1>'
                    .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
                     '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
                    .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
                    .$end_page
                    );
           return OK;
       }
   
   # ---------------------------------------------------- No valid token, continue
   
    # ---------------------------- Not possible to really login to domain "public"
       if ($env{'form.domain'} eq 'public') {
    $env{'form.domain'}='';
    $env{'form.username'}='';
       }
   # ----------------------------------------------------------- Process Interface
       $env{'form.interface'}=~s/\W//g;
   
       my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
   
       my $iconpath= 
    &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
   
       my $lonhost = $r->dir_config('lonHostID');
       my $domain = &Apache::lonnet::default_login_domain();
       my %domconfhash = &Apache::loncommon::get_domainconf($domain);
       if ($lonhost ne '') {
           my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
           if (($loginvia ne '') && ($loginvia ne $lonhost)) {
               my %servers = &Apache::lonnet::get_servers($domain);
               if ($servers{$loginvia} ne '') {
                   $r->print(&redirect_page($loginvia));
                   return OK;
               }
           }
       }
   
       if (($env{'form.domain'}) && 
    (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
    $domain=$env{'form.domain'};
       }
     my $role    = $r->dir_config('lonRole');      my $role    = $r->dir_config('lonRole');
     my $loadlim = $r->dir_config('lonLoadLim');      my $loadlim = $r->dir_config('lonLoadLim');
     my $servadm = $r->dir_config('lonAdmEMail');      my $servadm = $r->dir_config('lonAdmEMail');
     my $sysadm  = $r->dir_config('lonSysEMail');  
     my $lonhost = $r->dir_config('lonHostID');  
     my $tabdir  = $r->dir_config('lonTabDir');      my $tabdir  = $r->dir_config('lonTabDir');
       my $include = $r->dir_config('lonIncludes');
       my $expire  = $r->dir_config('lonExpire');
       my $version = $r->dir_config('lonVersion');
       my $host_name = &Apache::lonnet::hostname($lonhost);
   
   # --------------------------------------------- Default values for login fields
   
       my $authusername=($env{'form.username'}?$env{'form.username'}:'');
       my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
   
   # ---------------------------------------------------------- Determine own load
     my $loadavg;      my $loadavg;
    {      {
        my $loadfile=Apache::File->new('/proc/loadavg');   my $loadfile=Apache::File->new('/proc/loadavg');
        $loadavg=<$loadfile>;   $loadavg=<$loadfile>;
    }      }
     $loadavg =~ s/\s.*//g;      $loadavg =~ s/\s.*//g;
     my $loadpercent=100*$loadavg/$loadlim;      my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
       my $userloadpercent=&Apache::lonnet::userload();
   
   # ------------------------------------------------------- Do the load balancing
       my $otherserver= &Apache::lonnet::absolute_url($host_name);
       my $firsturl=
       ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
   # ---------------------------------------------------------- Are we overloaded?
       if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
           my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
    if ($unloaded) { $otherserver=$unloaded; }
       }
   
   # ----------------------------------------------------------- Get announcements
       my $announcements=&Apache::lonnet::getannounce();
   # -------------------------------------------------------- Set login parameters
   
       my @hexstr=('0','1','2','3','4','5','6','7',
                   '8','9','a','b','c','d','e','f');
       my $lkey='';
       for (0..7) {
           $lkey.=$hexstr[rand(15)];
       }
   
       my $ukey='';
       for (0..7) {
           $ukey.=$hexstr[rand(15)];
       }
   
       my $lextkey=hex($lkey);
       if ($lextkey>2147483647) { $lextkey-=4294967296; }
   
       my $uextkey=hex($ukey);
       if ($uextkey>2147483647) { $uextkey-=4294967296; }
   
   # -------------------------------------------------------- Store away log token
       my $tokenextras;
       if ($env{'form.role'}) {
           $tokenextras = '&role='.&escape($env{'form.role'});
       }
       if ($env{'form.symb'}) {
           if (!$tokenextras) {
               $tokenextras = '&';
           }
           $tokenextras .= '&symb='.&escape($env{'form.symb'});
       }
       my $logtoken=Apache::lonnet::reply(
          'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
          $lonhost);
   
   # ------------------- If we cannot talk to ourselves, we are in serious trouble
   
       if ($logtoken eq 'con_lost') {
           my $spares='';
    my $last;
           foreach my $hostid (sort
       {
    &Apache::lonnet::hostname($a) cmp
       &Apache::lonnet::hostname($b);
       }
       keys(%Apache::lonnet::spareid)) {
               next if ($hostid eq $lonhost);
       my $hostname = &Apache::lonnet::hostname($hostid);
       next if ($last eq $hostname);
               $spares.='<br /><font size="+1"><a href="http://'.
                   $hostname.
                   '/adm/login?domain='.$authdomain.'">'.
                   $hostname.'</a>'.
                   ' '.&mt('(preferred)').'</font>'.$/;
       $last=$hostname;
           }
   $spares.= '<br />';
   my %all_hostnames = &Apache::lonnet::all_hostnames();
   foreach my $hostid (sort
       {
    &Apache::lonnet::hostname($a) cmp
       &Apache::lonnet::hostname($b);
       }
       keys(%all_hostnames)) {
       next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
       my $hostname = &Apache::lonnet::hostname($hostid);
       next if ($last eq $hostname);
       $spares.='<br /><a href="http://'.
    $hostname.
    '/adm/login?domain='.$authdomain.'">'.
    $hostname.'</a>';
       $last=$hostname;
   }
   $r->print(
      '<html>'
     .'<head><title>'
     .&mt('The LearningOnline Network with CAPA')
     .'</title></head>'
     .'<body bgcolor="#FFFFFF">'
     .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
     .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
     .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'
     .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'
     .$spares
     .'</body>'
     .'</html>'
   );
   return OK;
   }
   
   # ----------------------------------------------- Apparently we are in business
   $servadm=~s/\,/\<br \/\>/g;
   
   # ----------------------------------------------------------- Front page design
   my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
   my $font=&Apache::loncommon::designparm('login.font',$domain);
   my $link=&Apache::loncommon::designparm('login.link',$domain);
   my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
   my $alink=&Apache::loncommon::designparm('login.alink',$domain);
   my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
   my $logo=&Apache::loncommon::designparm('login.logo',$domain);
   my $img=&Apache::loncommon::designparm('login.img',$domain);
   my $domainlogo=&Apache::loncommon::domainlogo($domain);
   my $login=&Apache::loncommon::designparm('login.login',$domain);
   if ($login eq '') {
   $login = $iconpath.'/'.&mt('userauthentication.gif');
   }
   my $showbanner = 1;
   my $showmainlogo = 1;
   if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
       $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
   }
   if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
       $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
   }
   my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
   my $showcoursecat =
   &Apache::loncommon::designparm('login.coursecatalog',$domain);
   my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
   my $shownewuserlink = 
   &Apache::loncommon::designparm('login.newuser',$domain);
   my $now=time;
   my $js = (<<ENDSCRIPT);
   
   <script type="text/javascript" language="JavaScript">
   // <![CDATA[
   function send()
   {
   this.document.server.elements.uname.value
   =this.document.client.elements.uname.value;
   
   this.document.server.elements.udom.value
   =this.document.client.elements.udom.value;
   
   uextkey=this.document.client.elements.uextkey.value;
   lextkey=this.document.client.elements.lextkey.value;
   initkeys();
   
   this.document.server.elements.upass0.value
       =crypted(this.document.client.elements.upass$now.value.substr(0,15));
   this.document.server.elements.upass1.value
       =crypted(this.document.client.elements.upass$now.value.substr(15,15));
   this.document.server.elements.upass2.value
       =crypted(this.document.client.elements.upass$now.value.substr(30,15));
   
   this.document.client.elements.uname.value='';
   this.document.client.elements.upass$now.value='';
   
   this.document.server.submit();
   return false;
   }
   // ]]>
   </script>
   
   ENDSCRIPT
   
   # --------------------------------------------------- Print login screen header
   
   my %add_entries = (
          bgcolor      => "$mainbg",
          text         => "$font",
          link         => "$link",
          vlink        => "$vlink",
          alink        => "$alink",);
   
   $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
          { 'redirect'       => [$expire,'/adm/roles'], 
    'add_entries' => \%add_entries,
    'only_body'   => 1,}));
   
   # ----------------------------------------------------------------------- Texts
   
   my %lt=&Apache::lonlocal::texthash(
     'un'  => 'Username',
     'pw'  => 'Password',
     'dom' => 'Domain',
     'perc' => 'percent',
     'load' => 'Server Load',
     'userload' => 'User Load',
     'catalog' => 'Course Catalog',
     'log' => 'Log in',
     'help' => 'Log-in Help',
     'serv' => 'Server',
     'servadm' => 'Server Administration',
     'helpdesk' => 'Contact Helpdesk',
     'forgotpw' => 'Forgot password?',
     'newuser'  => 'New User?',
     );
   # -------------------------------------------------- Change password field name
   my $forgotpw = &forgotpwdisplay(%lt);
   my $loginhelp = &loginhelpdisplay(%lt);
   
   # ---------------------------------------------------- Serve out DES JavaScript
   {
   my $jsh=Apache::File->new($include."/londes.js");
   $r->print(<$jsh>);
   }
   # ---------------------------------------------------------- Serve rest of page
   
   $r->print(
     '<div class="LC_loginpage_container">');
   
   #
   #  If the loadbalancing yielded just http:// because perhaps there's no loadbalancing?
   #  then just us a relative link to authenticate:
   #
   
   $r->print(<<ENDSERVERFORM);
   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
      <input type="hidden" name="logtoken" value="$logtoken" />
      <input type="hidden" name="serverid" value="$lonhost" />
      <input type="hidden" name="uname" value="" />
      <input type="hidden" name="upass0" value="" />
      <input type="hidden" name="upass1" value="" />
      <input type="hidden" name="upass2" value="" />
      <input type="hidden" name="udom" value="" />
      <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
      <input type="hidden" name="localres" value="$env{'form.localres'}" />
     </form>
   ENDSERVERFORM
   my $coursecatalog;
   if (($showcoursecat eq '') || ($showcoursecat)) {
       $coursecatalog = &coursecatalog_link($lt{'catalog'});
   }
   my $newuserlink;
   if ($shownewuserlink) {
       $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
   }
   my $logintitle;
   if ($loginheader eq 'text') {
       $logintitle ='<h2>'.$lt{'log'}.'</h2>';
   } else {
       $logintitle = '<img src="'.$login.'" alt="'.
                     &mt('User Authentication').'" />';
   }
   
   my $noscript_warning='<noscript><span class="LC_warning"><b>'
                        .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
                       .'</b></span></noscript>';
   my $helpdeskscript;
   my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                               $version,$authdomain,\$helpdeskscript);
   
     my $otherserver='';  my $loginform=(<<LFORM);
 # ---------------------------------------- Are we access server and overloaded?  <form name="client" action="" onsubmit="return(send())">
     if (($role eq 'access') && ($loadpercent>100.0)) {    <input type="hidden" name="lextkey" value="$lextkey" />
         $otherserver=Apache::lonnet::spareserver();    <input type="hidden" name="uextkey" value="$uextkey" />
     }    <b><label for="uname">$lt{'un'}</label>:</b><br />
 # ---------------------------------------------------------- Print login screen    <input type="text" name="uname" size="15" value="$authusername" /><br />
     $r->print(<<ENDDOCUMENT);    <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
 <html>    <input type="password" name="upass$now" size="15" /><br />
 <head>    <b><label for="udom">$lt{'dom'}</label>:</b><br />
 <title>The LearningOnline Network Login</title>    <input type="text" name="udom" size="15" value="$authdomain" /><br />
 </head>    <input type="submit" value="$lt{'log'}" />
 <body bgcolor="#FFFFFF">  </form>
 <table width=600>  LFORM
 <tr><td><img src="$iconpath/lonlogo.gif"></td>  
 <td bgcolor="#DDDDDD">      if ($showbanner) {
  <form action="$otherserver/adm/authenticate" method="post" target="_top">          $r->print(<<HEADER);
  <table border=2 bgcolor="#BBBBBB">  <!-- The LON-CAPA Header -->
  <tr><td>Username:</td><td><input type=text size=10 name=uname></td></tr>  <table border="0" align="left" width="100%" cellspacing="0" cellpadding="1">
  <tr><td>Password:</td><td><input type=password size=10 name=upass></td></tr>   <tr>
  <tr><td>Domain:</td><td><input type=text size=10 value=$domain name=udom></td>    <td align="left" valign="top" bgcolor="$pgbg">
         <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
     </td>
  </tr>   </tr>
  <tr><td colspan=2><input type=submit value=Login></td></tr>  </table>
  </table>  HEADER
  </form><p>      }
       $r->print(<<ENDTOP);
  <form action="$otherserver/adm/newkey" method="post" target="_top">  <div class="LC_loginpage_space">&nbsp;</div>
  <table border=2 bgcolor="#BBBBBB">  <div class="LC_loginpage_floatLeft">
  <tr><td>Key:</td><td><input type=text size=22 name=ukey></td></tr>  <div class="LC_loginpage_loginContainer">
  <tr><td>Class:</td><td><input type=password size=10 name=uclass></td></tr>    $logintitle
  <tr><td>Domain:</td><td><input type=text size=10 value=$domain name=udom></td>     <table border="0" align="left" cellspacing="1" cellpadding="2" width="100%">
  </tr><tr><td colspan=2><input type=submit value="Register New Key"></td></tr>        <tr>
  </table>     <td>
  </form>   $loginform
 </td>             </td>
 </tr><tr><td bgcolor="#DDDDDD">        </tr>
 <table border=1 bgcolor="#BBBBBB">     </table>  
 <tr><td><font size="-2"><b>Domain:</b></font></td>     $noscript_warning
     <td><font size="-2"><tt>$domain</tt></font></td>  </div>
     <td rowspan=3><font size="-2"><b>LON System Administration:</b><br>    
                   <tt>$sysadm</tt><br>  <div class="LC_loginpage_loginInfo">
                   <b>Server Administration:</b><br>          $loginhelp<br />
                   <tt>$servadm</tt></font></td></tr>          $forgotpw<br />
 <tr><td><font size="-2"><b>Server:</b></font></td>   $contactblock<br />
     <td><font size="-2"><tt>$lonhost ($role)</tt></font></td></tr>          $newuserlink
 <tr><td><font size="-2"><b>Load:</b></font></td>          $coursecatalog
     <td><font size="-2"><tt>$loadpercent</tt> percent</font></td></tr>  </div>
 </table><p><font size="-1">  </div>
 The Learning<i>Online</i> Network is a MSU College of Natural Science   ENDTOP
 collaboration involving Competency Based      if ($showmainlogo) {
 Instruction (<b>CBI</b>),           $r->print(' <img src="'.$logo.'" alt="" />'."\n");
 Lecture<i>Online</i> (<b>LOL</b>) and Computer-Assisted Personalized       }
 Approach (<b>CAPA</b>).<br>  $r->print(<<ENDTOP);
 Copyright 1999, Michigan State University Board of Trustees</font>  $announcements
 </td><td>  $domainlogo
 <table align=right><tr><td><font size="+1">  <div class="LC_loginpage_space">&nbsp;</div>
 <b>L</b>aboratory for <br><b>I</b>nstructional<br><b>T</b>echnology in<br>  ENDTOP
 <b>E</b>ducation</td><td>  
 <img src="$iconpath/liteani.gif"></font></td></tr></table></tr></table>  $r->print(<<ENDDOCUMENT);
 </body>       <table border="0" cellspacing="0" cellpadding="0">
 </html>        <tr>
          <td  align="left" valign="top">
           <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
          </td>
          <td  align="left" valign="top">
           <small><tt>&nbsp;$domain</tt></small>
          </td>
         </tr>
         <tr>
          <td  align="left" valign="top">
           <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
          </td>
          <td align="left" valign="top">
           <small><tt>&nbsp;$lonhost ($role)</tt></small>
          </td>
         </tr>
         <tr>
          <td align="left" valign="top">
           <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>
          </td>
          <td align="left" valign="top">
           <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
          </td>
         </tr>
         <tr>
          <td align="left" valign="top">
           <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>
          </td>
          <td align="left" valign="top">
           <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
          </td>
         </tr>
        </table>
    </div>
   
   <script type="text/javascript">
   // <![CDATA[
   // the if prevents the script error if the browser can not handle this
   if ( document.client.uname ) { document.client.uname.focus(); }
   // ]]>
   </script>
   $helpdeskscript
   
 ENDDOCUMENT  ENDDOCUMENT
       my %endargs = ( 'noredirectlink' => 1, );
       $r->print(&Apache::loncommon::end_page(\%endargs));
     return OK;      return OK;
 }   }
   
   sub redirect_page {
       my ($desthost) = @_;
       my $protocol = $Apache::lonnet::protocol{$desthost};
       $protocol = 'http' if ($protocol ne 'https');
       my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).'/';
       if ($env{'form.firsturl'} ne '') {
           $url .='?firsturl='.$env{'form.firsturl'};
       }
       my $start_page = &Apache::loncommon::start_page('Switching Server',undef,
                                                       {'redirect' => [0,$url],});
       my $end_page   = &Apache::loncommon::end_page();
       return $start_page.$end_page;
   }
   
   sub contactdisplay {
       my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
       my $contactblock;
       my $showhelpdesk = 0;
       my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
       if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
           $showhelpdesk = 1;
       }
       if ($servadm && $showadminmail) {
           $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                            '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
       }
       if ($showhelpdesk) {
           $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
           my $thisurl = &escape('/adm/login');
           $$helpdeskscript = <<"ENDSCRIPT";
   <script type="text/javascript">
   // <![CDATA[
   function helpdesk() {
       var codedom = document.client.udom.value;
       if (codedom == '') {
           codedom = "$authdomain";
       }
       var querystr = "origurl=$thisurl&codedom="+codedom;
       document.location.href = "/adm/helpdesk?"+querystr;
       return;
   }
   // ]]>
   </script>
   ENDSCRIPT
       }
       $contactblock .= <<"ENDBLOCK";
        &nbsp;&nbsp;&nbsp;$version
   ENDBLOCK
       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 loginhelpdisplay {
       my (%lt) = @_;
       my $login_help = 1;
       if ($login_help) {
           return '<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a>';
       }
       return;
   }
   
   sub coursecatalog_link {
       my ($linkname) = @_;
       return <<"END";
         <a href="/adm/coursecatalog">$linkname</a>
   END
   }
   
   sub newuser_link {
       my ($linkname) = @_;
       return '&nbsp;&nbsp;&nbsp;<a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';
   }
   
 1;  1;
 __END__  __END__
Removed from v.1.1  
changed lines
  Added in v.1.127

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