Annotation of loncom/auth/lonlogin.pm, revision 1.79

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.79    ! albertel    4: # $Id: lonlogin.pm,v 1.78 2006/08/18 20:24:53 albertel Exp $
1.11      www         5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.14      albertel   28: 
1.1       albertel   29: package Apache::lonlogin;
                     30: 
                     31: use strict;
                     32: use Apache::Constants qw(:common);
1.55      www        33: use CGI::Cookie();
1.1       albertel   34: use Apache::File ();
1.63      albertel   35: use Apache::lonnet;
1.12      albertel   36: use Apache::loncommon();
1.49      www        37: use Apache::lonauth();
1.50      www        38: use Apache::lonlocal;
1.71      albertel   39: use Apache::migrateuser();
1.75      www        40: use lib '/home/httpd/lib/perl/';
                     41: use LONCAPA;
                     42:  
1.1       albertel   43: 
                     44: sub handler {
                     45:     my $r = shift;
1.71      albertel   46: 
                     47:     &Apache::loncommon::get_unprocessed_cgi
1.79    ! albertel   48: 	(join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
        !            49: 	      $ENV{'REDIRECT_QUERY_STRING'}),
1.71      albertel   50: 	 ['interface','username','domain','firsturl','localpath','localres',
                     51: 	  'token']);
                     52: 
                     53: # -- check if they are a migrating user
                     54:     if (defined($env{'form.token'})) {
                     55: 	return &Apache::migrateuser::handler($r);
                     56:     }
                     57: 
1.53      www        58:     &Apache::loncommon::no_cache($r);
                     59:     &Apache::lonlocal::get_language_handle($r);
1.54      www        60:     &Apache::loncommon::content_type($r,'text/html');
1.1       albertel   61:     $r->send_http_header;
                     62:     return OK if $r->header_only;
                     63: 
1.49      www        64: 
                     65: # Are we re-routing?
                     66:     if (-e '/home/httpd/html/lon-status/reroute.txt') {
                     67: 	&Apache::lonauth::reroute($r);
                     68: 	return OK;
                     69:     }
1.55      www        70: 
1.71      albertel   71: 
1.55      www        72: # -------------------------------- Prevent users from attempting to login twice
                     73:     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
                     74:     my $lonid=$cookies{'lonID'};
                     75:     my $cookie;
                     76:     if ($lonid) {
                     77: 	my $handle=$lonid->value;
                     78:         $handle=~s/\W//g;
                     79:         my $lonidsdir=$r->dir_config('lonIDsDir');
1.70      www        80: 	if (-e "$lonidsdir/$handle.id") {
                     81: # Is there an existing token file?
                     82: 	    if ($handle=~/^publicuser\_/) {
                     83: # For "public user" - remove it, we apparently really want to login
                     84: 		unlink("$lonidsdir/$handle.id");
                     85: 	    } elsif ($handle ne '') {
1.55      www        86: # Indeed, a valid token is found
1.74      albertel   87: 		my $start_page = 
                     88: 		    &Apache::loncommon::start_page('Already logged in');
                     89: 		my $end_page = 
                     90: 		    &Apache::loncommon::end_page();
1.70      www        91: 		$r->print(<<ENDFAILED);
1.74      albertel   92: $start_page
1.55      www        93: <h1>You are already logged in</h1>
                     94: <p>Please either <a href="/adm/roles">continue the current session</a> or
                     95: <a href="/adm/logout">logout</a>.</p>
                     96: <p>
                     97: <a href="/adm/loginproblems.html">Problems?</a></p>
1.74      albertel   98: $end_page
1.55      www        99: ENDFAILED
1.70      www       100:                 return OK;
                    101:  	    }  
1.55      www       102: 	}
                    103:     }
                    104: 
                    105: # ---------------------------------------------------- No valid token, continue
1.16      www       106: 
1.70      www       107:  # ---------------------------- Not possible to really login to domain "public"
                    108:     if ($env{'form.domain'} eq 'public') {
                    109: 	$env{'form.domain'}='';
                    110: 	$env{'form.username'}='';
                    111:     }
1.32      www       112: # ----------------------------------------------------------- Process Interface
1.63      albertel  113:     $env{'form.interface'}=~s/\W//g;
1.16      www       114: 
1.32      www       115:     my $textbrowsers=$r->dir_config('lonTextBrowsers');
                    116:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
                    117:     
                    118:     foreach (split(/\:/,$textbrowsers)) {
                    119: 	if ($httpbrowser=~/$_/i) {
1.63      albertel  120: 	    $env{'form.interface'}='textual';
1.32      www       121:         }
                    122:     }
                    123: 
1.63      albertel  124:     my $fullgraph=($env{'form.interface'} ne 'textual');
1.40      albertel  125:     my $port_to_use=$r->dir_config('lonhttpdPort');
                    126:     if (!defined($port_to_use)) {
                    127: 	$port_to_use='8080';
                    128:     }
                    129:     my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use.
1.26      www       130:                   $r->dir_config('lonIconsURL');
1.1       albertel  131:     my $domain  = $r->dir_config('lonDefDomain');
1.68      albertel  132:     my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
                    133:     foreach my $posdom (&Apache::lonnet::current_machine_domains()) {
1.73      albertel  134: 	if (lc($posdom) eq lc($testdomain)) { $domain=$posdom; }
1.68      albertel  135:     }
1.63      albertel  136:     if (($env{'form.domain'}) && 
                    137: 	 ($Apache::lonnet::domaindescription{$env{'form.domain'}})) {
                    138: 	$domain=$env{'form.domain'};
1.46      www       139:     }
1.1       albertel  140:     my $role    = $r->dir_config('lonRole');
                    141:     my $loadlim = $r->dir_config('lonLoadLim');
                    142:     my $servadm = $r->dir_config('lonAdmEMail');
                    143:     my $sysadm  = $r->dir_config('lonSysEMail');
                    144:     my $lonhost = $r->dir_config('lonHostID');
                    145:     my $tabdir  = $r->dir_config('lonTabDir');
1.6       www       146:     my $include = $r->dir_config('lonIncludes');
1.37      www       147:     my $expire  = $r->dir_config('lonExpire');
1.44      www       148:     my $version = $r->dir_config('lonVersion');
1.76      albertel  149:     my $host_name = $Apache::lonnet::hostname{$lonhost};
1.1       albertel  150: 
1.30      www       151: # --------------------------------------------- Default values for login fields
                    152: 
1.63      albertel  153:     my $authusername=($env{'form.username'}?$env{'form.username'}:'');
                    154:     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30      www       155: 
                    156: # ---------------------------------------------------------- Determine own load
1.1       albertel  157:     my $loadavg;
1.41      albertel  158:     {
                    159: 	my $loadfile=Apache::File->new('/proc/loadavg');
                    160: 	$loadavg=<$loadfile>;
                    161:     }
1.1       albertel  162:     $loadavg =~ s/\s.*//g;
1.57      matthew   163:     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41      albertel  164:     my $userloadpercent=&Apache::lonnet::userload();
1.1       albertel  165: 
1.30      www       166: # ------------------------------------------------------- Do the load balancing
1.78      albertel  167:     my $otherserver= &Apache::loncommon::absolute_url($host_name);
1.31      www       168:     my $firsturl=
1.63      albertel  169:     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.1       albertel  170: # ---------------------------------------- Are we access server and overloaded?
1.41      albertel  171:     if (($role eq 'access') &&
                    172: 	(($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  173:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    174: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  175:     }
1.6       www       176: 
1.45      www       177: # ----------------------------------------------------------- Get announcements
                    178:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       179: # -------------------------------------------------------- Set login parameters
                    180: 
                    181:     my @hexstr=('0','1','2','3','4','5','6','7',
                    182:                 '8','9','a','b','c','d','e','f');
                    183:     my $lkey='';
                    184:     for (0..7) {
                    185:         $lkey.=$hexstr[rand(15)];
                    186:     }
                    187: 
                    188:     my $ukey='';
                    189:     for (0..7) {
                    190:         $ukey.=$hexstr[rand(15)];
                    191:     }
                    192: 
                    193:     my $lextkey=hex($lkey);
1.15      www       194:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    195: 
1.6       www       196:     my $uextkey=hex($ukey);
1.15      www       197:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    198: 
1.31      www       199: # -------------------------------------------------------- Store away log token
1.6       www       200:     my $logtoken=Apache::lonnet::reply(
1.7       www       201:        'tmpput:'.$ukey.$lkey.'&'.$firsturl,
1.6       www       202:        $lonhost);
1.31      www       203: 
                    204: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    205: 
                    206:     if ($logtoken eq 'con_lost') {
                    207:         my $spares='';
1.64      albertel  208: 	my $last;
                    209:         foreach my $hostid (sort
                    210: 			    {
                    211: 				$Apache::lonnet::hostname{$a} cmp
                    212: 				    $Apache::lonnet::hostname{$b};
                    213: 			    }
                    214: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   215:             next if ($hostid eq $lonhost);
1.64      albertel  216:             next if ($last eq $Apache::lonnet::hostname{$hostid});
1.58      matthew   217:             $spares.='<br /><font size="+1"><a href="http://'.
                    218:                 $Apache::lonnet::hostname{$hostid}.
                    219:                 '/adm/login?domain='.$authdomain.'">'.
                    220:                 $Apache::lonnet::hostname{$hostid}.'</a>'.
                    221:                 ' (preferred)</font>'.$/;
1.64      albertel  222: 	    $last=$Apache::lonnet::hostname{$hostid};
1.58      matthew   223:         }
                    224:         $spares.= '<br />';
1.64      albertel  225:         foreach my $hostid (sort
                    226: 			    {
                    227: 				$Apache::lonnet::hostname{$a} cmp
                    228: 				    $Apache::lonnet::hostname{$b};
                    229: 			    }
                    230: 			    keys(%Apache::lonnet::hostname)) {
1.58      matthew   231:             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.64      albertel  232:             next if ($last eq $Apache::lonnet::hostname{$hostid});
1.58      matthew   233:             $spares.='<br /><a href="http://'.
                    234:                 $Apache::lonnet::hostname{$hostid}.
                    235:                 '/adm/login?domain='.$authdomain.'">'.
                    236:                 $Apache::lonnet::hostname{$hostid}.'</a>';
1.64      albertel  237: 	    $last=$Apache::lonnet::hostname{$hostid};
1.31      www       238:         }
                    239: 	$r->print(<<ENDTROUBLE);
                    240: <html>
                    241: <head><title>The LearningOnline Network with CAPA</title></head>
                    242: <body bgcolor="#FFFFFF">
                    243: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
                    244: <h3>This LON-CAPA server is temporarily not available for login</h3>
                    245: <p>Please attempt to login to one of the following servers:</p>$spares
                    246: <p>If the problem persists, please contact <tt>$servadm</tt>.</p>
                    247: </body>
                    248: </html>
                    249: ENDTROUBLE
                    250:         return OK;
                    251:     }
                    252: 
                    253: # ----------------------------------------------- Apparently we are in business
                    254: 
1.48      albertel  255:     my $domainlogo=&Apache::loncommon::domainlogo($domain);
1.38      www       256:     $servadm=~s/\,/\<br \/\>/g;
                    257:     $sysadm=~s/\,/\<br \/\>/g;
                    258: 
1.6       www       259: # --------------------------------------------------- Print login screen header
                    260:     $r->print(<<ENDHEADER);
1.1       albertel  261: <html>
                    262: <head>
1.37      www       263: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
1.2       www       264: <title>The LearningOnline Network with CAPA Login</title>
1.1       albertel  265: </head>
1.6       www       266: ENDHEADER
                    267: # ---------------------------------------------------- Serve out DES JavaScript
                    268:     {
                    269: 	my $jsh=Apache::File->new($include."/londes.js");
                    270:         $r->print(<$jsh>);
                    271:     }
1.21      www       272: 
                    273: # ----------------------------------------------------------- Front page design
1.35      www       274:     my $pgbg=
1.46      www       275:       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35      www       276:     my $font=
1.46      www       277:       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35      www       278:     my $link=
1.46      www       279:       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35      www       280:     my $vlink=
1.46      www       281:       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
                    282:     my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35      www       283:     my $mainbg=
1.46      www       284:       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35      www       285:     my $sidebg=
1.46      www       286:       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
                    287:     my $logo=&Apache::loncommon::designparm('login.logo',$domain);
                    288:     my $img=&Apache::loncommon::designparm('login.img',$domain);
1.21      www       289: 
1.51      www       290: # ----------------------------------------------------------------------- Texts
                    291: 
                    292: my %lt=&Apache::lonlocal::texthash(
                    293: 		  'un'  => 'Username',
                    294: 		  'pw'  => 'Password',
                    295: 		  'dom' => 'Domain',
                    296: 		  'perc' => 'percent',
1.52      www       297: 		  'load' => 'Load',
                    298:                   'userload' => 'User Load',
                    299:                   'about'  => 'aboutlon.gif',
                    300:                   'access' => 'accessbutton.gif',
                    301: 		  'auth' => 'userauthentication.gif',
1.51      www       302: 		  'log' => 'Log in',
                    303: 		  'help' => 'Help',
                    304: 		  'serv' => 'Server',
                    305:                   'servadm' => 'Server Administration',
1.60      raeburn   306:                   'sysadm' => 'System Administration',
                    307:                   'helpdesk' => 'Contact Helpdesk');
1.66      www       308: # -------------------------------------------------- Change password field name
                    309:     my $now=time;
1.6       www       310: # ---------------------------------------------------------- Serve rest of page
1.16      www       311:     $r->print(<<ENDSCRIPT);
1.6       www       312: 
1.21      www       313: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
1.27      albertel  314:   topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
1.6       www       315: 
1.14      albertel  316:  <script language="JavaScript">
                    317:     function send()
                    318:     {
1.6       www       319: 	this.document.server.elements.uname.value
                    320:        =this.document.client.elements.uname.value;
                    321: 
                    322:         this.document.server.elements.udom.value
                    323:        =this.document.client.elements.udom.value;
                    324: 
1.33      www       325:         this.document.server.elements.imagesuppress.value
1.36      www       326:        =this.document.client.elements.imagesuppress.checked;
1.33      www       327: 
                    328:         this.document.server.elements.embedsuppress.value
1.36      www       329:        =this.document.client.elements.embedsuppress.checked;
1.33      www       330: 
1.34      www       331:         this.document.server.elements.appletsuppress.value
1.36      www       332:        =this.document.client.elements.appletsuppress.checked;
1.34      www       333: 
1.33      www       334:         this.document.server.elements.fontenhance.value
1.36      www       335:        =this.document.client.elements.fontenhance.checked;
1.33      www       336: 
                    337:         this.document.server.elements.blackwhite.value
1.36      www       338:        =this.document.client.elements.blackwhite.checked;
1.33      www       339: 
1.35      www       340:         this.document.server.elements.remember.value
1.36      www       341:        =this.document.client.elements.remember.checked;
1.35      www       342: 
1.6       www       343:         uextkey=this.document.client.elements.uextkey.value;
                    344:         lextkey=this.document.client.elements.lextkey.value;
                    345:         initkeys();
                    346: 
1.65      www       347:         this.document.server.elements.upass0.value
1.66      www       348: 	    =crypted(this.document.client.elements.upass$now.value.substr(0,15));
1.65      www       349: 	this.document.server.elements.upass1.value
1.66      www       350: 	    =crypted(this.document.client.elements.upass$now.value.substr(15,15));
1.65      www       351: 	this.document.server.elements.upass2.value
1.66      www       352: 	    =crypted(this.document.client.elements.upass$now.value.substr(30,15));
                    353: 
                    354:         this.document.client.elements.uname.value='';
                    355:         this.document.client.elements.upass$now.value='';
1.6       www       356: 
                    357:         this.document.server.submit();
1.19      bowersj2  358: 	return false;
1.6       www       359:     }
1.14      albertel  360:  </script>
1.16      www       361: ENDSCRIPT
1.6       www       362: 
1.16      www       363:     if ($fullgraph) {
                    364: 	$r->print(
                    365: 		  '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
                    366:     }
1.6       www       367: 
1.16      www       368:     $r->print(<<ENDSERVERFORM);
1.14      albertel  369:   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33      www       370:    <input type="hidden" name="logtoken" value="$logtoken" />
                    371:    <input type="hidden" name="serverid" value="$lonhost" />
1.63      albertel  372:    <input type="hidden" name="interface" value="$env{'form.interface'}" />
1.33      www       373:    <input type="hidden" name="uname" value="" />
1.65      www       374:    <input type="hidden" name="upass0" value="" />
                    375:    <input type="hidden" name="upass1" value="" />
                    376:    <input type="hidden" name="upass2" value="" />
1.33      www       377:    <input type="hidden" name="udom" value="" />
                    378:    <input type="hidden" name="imagesuppress"  value="" />
1.34      www       379:    <input type="hidden" name="appletsuppress"  value="" />
1.33      www       380:    <input type="hidden" name="embedsuppress"  value="" />
                    381:    <input type="hidden" name="fontenhance"  value="" />
                    382:    <input type="hidden" name="blackwhite"  value="" />
1.35      www       383:    <input type="hidden" name="remember"  value="" />
1.63      albertel  384:    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
                    385:    <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14      albertel  386:   </form>
1.16      www       387: ENDSERVERFORM
                    388:     if ($fullgraph) { $r->print(<<ENDTOP);
1.14      albertel  389:   <!-- The LON-CAPA Header -->
                    390:   <tr>
                    391: 
                    392:    <!-- Row 1 Columns 2-4 -->
1.29      www       393:    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
1.14      albertel  394:   </tr>
                    395: 
                    396:   <!-- The gray bar that starts the two table frames -->
                    397:   <tr>
                    398: 
                    399:    <!-- Row 2 Column 1 -->
1.21      www       400:    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  401: 
                    402:    <!-- Row 2 Column 2 -->
1.19      bowersj2  403:    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14      albertel  404: 
                    405:    <!-- Row 2 Column 3 -->
1.19      bowersj2  406:    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14      albertel  407: 
                    408:    <!-- Row 2 Column 4 -->
1.19      bowersj2  409:    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14      albertel  410:   </tr>
                    411:   <tr>
                    412:    
                    413:    <!-- A cell that will hold the 'access' and 'about' buttons -->
                    414:    <!-- Row 3 Column 1 -->
1.21      www       415:    <td valign="top" height=60 align="center" bgcolor="$sidebg">
1.52      www       416:     <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a>
1.14      albertel  417:     <br />
1.52      www       418:     <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a>
1.14      albertel  419:    </td>
                    420: 
                    421:    <!-- The shaded space between the two main columns -->
                    422:    <!-- Row 3 Column 2 -->
1.19      bowersj2  423:    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  424: 
                    425:    <!-- The right main column holding the large LON-CAPA logo-->
                    426:    <!-- Rows 3-4 Column 3 -->
1.45      www       427:    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
1.14      albertel  428:     <center>
1.21      www       429:      <img src="$logo" alt="" />
1.14      albertel  430:     </center>
                    431:    </td>
                    432: 
                    433:    <!-- Row 3 Column 4 -->
1.19      bowersj2  434:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  435:   </tr>
                    436:   <tr>
                    437: 
                    438:    <!-- The entry form -->
                    439:    <!-- Row 4 Column 1 -->
1.21      www       440:    <td align="center" valign="middle" bgcolor="$sidebg">
1.16      www       441: ENDTOP
1.32      www       442: } else {
1.45      www       443:     $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
1.33      www       444: }
                    445:     $r->print('<form name="client" onsubmit="return(send())">');
                    446:     unless ($fullgraph) {
                    447:         $r->print(<<ENDACCESSOPTIONS);
1.35      www       448: <h3>Select Accessibility Options</h3>
1.67      albertel  449: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
                    450: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
                    451: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
                    452: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
                    453: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
1.35      www       454: <p>If you have accessibility needs that are not addressed by this interface, 
                    455: please
                    456: contact the system administrator at <tt>$sysadm</tt>.</p><br />
                    457: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
1.33      www       458: ENDACCESSOPTIONS
                    459: } else {
                    460:     $r->print(<<ENDNOOPT);
                    461: <input type="hidden" name="imagesuppress"  value="" />
                    462: <input type="hidden" name="embedsuppress"  value="" />
1.34      www       463: <input type="hidden" name="appletsuppress"  value="" />
1.33      www       464: <input type="hidden" name="fontenhance"  value="" />
                    465: <input type="hidden" name="blackwhite"  value="" />
1.35      www       466: <input type="hidden" name="remember"  value="" />
1.33      www       467: ENDNOOPT
1.16      www       468: }
                    469:     $r->print(<<ENDLOGIN);
1.14      albertel  470:      <input type="hidden" name="lextkey" value="$lextkey">
                    471:      <input type="hidden" name="uextkey" value="$uextkey">
                    472: 
                    473:      <!-- Start the sub-table for text and input alignment -->
                    474:      <table border=0 cellspacing=0 cellpadding=0>
1.52      www       475:       <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
1.14      albertel  476:       <tr>
1.51      www       477:        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;$lt{'un'}:</b></font></td>
1.30      www       478:        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14      albertel  479:       </tr>
                    480:       <tr>
1.51      www       481:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;$lt{'pw'}:</b></font></td>
1.66      www       482:        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14      albertel  483:       </tr>
                    484:       <tr>
1.51      www       485:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:</b></font></td>
1.30      www       486:        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14      albertel  487:       </tr>
                    488:       <tr>
1.51      www       489:        <td bgcolor="$mainbg">&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">$lt{'help'}</a></td>
1.28      www       490:        <td bgcolor="$mainbg" valign="bottom" align="center">
1.14      albertel  491:         <br />
1.51      www       492:         <input type="submit" value="$lt{'log'}" />
1.14      albertel  493:        </td>
                    494:       </tr>
                    495:      </table>
                    496:      <!-- End sub-table -->
                    497:     </form>
1.16      www       498: ENDLOGIN
                    499:     if ($fullgraph) {
1.62      raeburn   500:         my $helpdeskscript;
                    501:         my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript);
1.16      www       502: 	$r->print(<<ENDDOCUMENT);
1.14      albertel  503:    </td>
                    504: 
                    505:    <!-- Row 4 Column 2 -->
1.19      bowersj2  506:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45      www       507: 
                    508:    <!-- Row 4 Column 3 -->
                    509: <td bgcolor="$mainbg">$announcements</td>
1.14      albertel  510: 
                    511:    <!-- Row 4 Column 4 -->
1.19      bowersj2  512:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  513:   </tr>
                    514:   <tr>
                    515: 
                    516:    <!-- Row 5 Column 1 -->
1.21      www       517:    <td bgcolor="$sidebg" valign="middle" align="left">
1.14      albertel  518:      <br />
                    519:      <table border=0 cellspacing=0 cellpadding=0>
                    520:       <tr>
1.21      www       521:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       522:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  523:        </td>
1.21      www       524:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  525:         <small><tt>&nbsp;$domain</tt></small>
                    526:        </td>
                    527:       </tr>
                    528:       <tr>
1.21      www       529:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       530:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  531:        </td>
1.21      www       532:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  533:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    534:        </td>
                    535:       </tr>
                    536:       <tr>
1.21      www       537:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       538:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>
1.14      albertel  539:        </td>
1.21      www       540:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       541:         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
1.42      albertel  542:        </td>
                    543:       </tr>
                    544:       <tr>
                    545:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       546:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>
1.42      albertel  547:        </td>
                    548:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       549:         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
1.14      albertel  550:        </td>
                    551:       </tr>
                    552:      </table>
                    553:      <br />
1.60      raeburn   554:     $contactblock
1.14      albertel  555:    </td>
                    556: 
                    557:    <!-- Row 5 Column 2 -->
1.19      bowersj2  558:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  559: 
                    560:    <!-- Row 5 Column 3 -->
1.21      www       561:    <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20      www       562: $domainlogo
                    563: </td>
1.14      albertel  564: 
                    565:    <!-- Row 5 Column 4 -->
1.19      bowersj2  566:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  567:   </tr>
                    568:   <tr>
                    569: 
                    570:    <!-- Row 6 Column 1 -->
1.21      www       571:    <td bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  572: 
                    573:    <!-- Row 6 Column 2 -->
1.19      bowersj2  574:    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14      albertel  575: 
                    576:    <!-- Row 6 Column 3 -->
1.19      bowersj2  577:    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14      albertel  578: 
                    579:    <!-- Row 6 Column 4 -->
1.19      bowersj2  580:    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14      albertel  581:   </tr>
1.1       albertel  582:  </table>
1.25      bowersj2  583: 
1.59      albertel  584: <script type="text/javascript">
                    585: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  586: if ( document.client.uname ) { document.client.uname.focus(); }
                    587: </script>
1.62      raeburn   588: $helpdeskscript
1.14      albertel  589: 
1.1       albertel  590: ENDDOCUMENT
1.16      www       591: }
                    592:     $r->print('</body></html>');
1.1       albertel  593:     return OK;
1.60      raeburn   594: }
                    595: 
                    596: sub contactdisplay {
1.62      raeburn   597:     my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   598:     my $contactblock;
                    599:     my $showsysadm = 1;
                    600:     my $showservadm = 1;
1.62      raeburn   601:     my $showhelpdesk = 0;
                    602:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    603:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    604:         $showhelpdesk = 1;
                    605:     }
1.60      raeburn   606:     if ($showsysadm) {
                    607:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'sysadm'}.':</b><br />'.
                    608:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$sysadm.'</tt><br />';
                    609:     }
                    610:     if ($showservadm) {
                    611:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                    612:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
                    613:     }
                    614:     if ($showhelpdesk) {
1.62      raeburn   615:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />';
1.75      www       616:         my $thisurl = &escape('/adm/login');
1.62      raeburn   617:         $$helpdeskscript = <<"ENDSCRIPT";
                    618: <script type="text/javascript">
                    619: function helpdesk() {
                    620:     var codedom = document.client.udom.value;
                    621:     if (codedom == '') {
                    622:         codedom = "$authdomain";
                    623:     }
                    624:     var querystr = "origurl=$thisurl&codedom="+codedom;
                    625:     document.location.href = "/adm/helpdesk?"+querystr;
                    626:     return;
                    627: }
                    628: </script>
                    629: ENDSCRIPT
1.60      raeburn   630:     }
                    631:     $contactblock .= <<"ENDBLOCK";
                    632:      &nbsp;&nbsp;&nbsp;$version
                    633: ENDBLOCK
                    634:     return $contactblock;
                    635: }
                    636:  
1.1       albertel  637: 
                    638: 1;
                    639: __END__

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