Annotation of loncom/auth/lonlogin.pm, revision 1.97

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.97    ! albertel    4: # $Id: lonlogin.pm,v 1.96 2007/10/02 01:09:59 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);
                     33: use Apache::File ();
1.63      albertel   34: use Apache::lonnet;
1.12      albertel   35: use Apache::loncommon();
1.49      www        36: use Apache::lonauth();
1.50      www        37: use Apache::lonlocal;
1.71      albertel   38: use Apache::migrateuser();
1.75      www        39: use lib '/home/httpd/lib/perl/';
                     40: use LONCAPA;
                     41:  
1.1       albertel   42: sub handler {
                     43:     my $r = shift;
1.71      albertel   44: 
                     45:     &Apache::loncommon::get_unprocessed_cgi
1.79      albertel   46: 	(join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
                     47: 	      $ENV{'REDIRECT_QUERY_STRING'}),
1.71      albertel   48: 	 ['interface','username','domain','firsturl','localpath','localres',
                     49: 	  'token']);
                     50: 
                     51: # -- check if they are a migrating user
                     52:     if (defined($env{'form.token'})) {
                     53: 	return &Apache::migrateuser::handler($r);
                     54:     }
                     55: 
1.53      www        56:     &Apache::loncommon::no_cache($r);
                     57:     &Apache::lonlocal::get_language_handle($r);
1.54      www        58:     &Apache::loncommon::content_type($r,'text/html');
1.1       albertel   59:     $r->send_http_header;
                     60:     return OK if $r->header_only;
                     61: 
1.49      www        62: 
                     63: # Are we re-routing?
                     64:     if (-e '/home/httpd/html/lon-status/reroute.txt') {
                     65: 	&Apache::lonauth::reroute($r);
                     66: 	return OK;
                     67:     }
1.55      www        68: 
1.71      albertel   69: 
1.55      www        70: # -------------------------------- Prevent users from attempting to login twice
1.95      albertel   71:     my $handle = &Apache::lonnet::check_for_valid_session($r);
                     72:     if ($handle=~/^publicuser\_/) {
1.70      www        73: # For "public user" - remove it, we apparently really want to login
1.95      albertel   74: 	unlink($r->dir_config('lonIDsDir')."/$handle.id");
                     75:     } elsif ($handle ne '') {
1.55      www        76: # Indeed, a valid token is found
1.95      albertel   77: 	my $start_page = 
                     78: 	    &Apache::loncommon::start_page('Already logged in');
                     79: 	my $end_page = 
                     80: 	    &Apache::loncommon::end_page();
                     81: 	$r->print(<<ENDFAILED);
1.74      albertel   82: $start_page
1.55      www        83: <h1>You are already logged in</h1>
                     84: <p>Please either <a href="/adm/roles">continue the current session</a> or
                     85: <a href="/adm/logout">logout</a>.</p>
                     86: <p>
                     87: <a href="/adm/loginproblems.html">Problems?</a></p>
1.74      albertel   88: $end_page
1.55      www        89: ENDFAILED
1.95      albertel   90:         return OK;
1.55      www        91:     }
                     92: 
                     93: # ---------------------------------------------------- No valid token, continue
1.16      www        94: 
1.70      www        95:  # ---------------------------- Not possible to really login to domain "public"
                     96:     if ($env{'form.domain'} eq 'public') {
                     97: 	$env{'form.domain'}='';
                     98: 	$env{'form.username'}='';
                     99:     }
1.32      www       100: # ----------------------------------------------------------- Process Interface
1.63      albertel  101:     $env{'form.interface'}=~s/\W//g;
1.16      www       102: 
1.32      www       103:     my $textbrowsers=$r->dir_config('lonTextBrowsers');
                    104:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
                    105:     
                    106:     foreach (split(/\:/,$textbrowsers)) {
                    107: 	if ($httpbrowser=~/$_/i) {
1.63      albertel  108: 	    $env{'form.interface'}='textual';
1.32      www       109:         }
                    110:     }
                    111: 
1.63      albertel  112:     my $fullgraph=($env{'form.interface'} ne 'textual');
1.94      albertel  113: 
                    114:     my $iconpath= 
                    115: 	&Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
                    116: 
1.87      raeburn   117:     my $domain = &Apache::lonnet::default_login_domain();
1.63      albertel  118:     if (($env{'form.domain'}) && 
1.89      albertel  119: 	(&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63      albertel  120: 	$domain=$env{'form.domain'};
1.46      www       121:     }
1.1       albertel  122:     my $role    = $r->dir_config('lonRole');
                    123:     my $loadlim = $r->dir_config('lonLoadLim');
1.90      raeburn   124:     my $servadm = $r->dir_config('lonAdmEMail');
1.1       albertel  125:     my $lonhost = $r->dir_config('lonHostID');
                    126:     my $tabdir  = $r->dir_config('lonTabDir');
1.6       www       127:     my $include = $r->dir_config('lonIncludes');
1.37      www       128:     my $expire  = $r->dir_config('lonExpire');
1.44      www       129:     my $version = $r->dir_config('lonVersion');
1.88      albertel  130:     my $host_name = &Apache::lonnet::hostname($lonhost);
1.1       albertel  131: 
1.30      www       132: # --------------------------------------------- Default values for login fields
                    133: 
1.63      albertel  134:     my $authusername=($env{'form.username'}?$env{'form.username'}:'');
                    135:     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30      www       136: 
                    137: # ---------------------------------------------------------- Determine own load
1.1       albertel  138:     my $loadavg;
1.41      albertel  139:     {
                    140: 	my $loadfile=Apache::File->new('/proc/loadavg');
                    141: 	$loadavg=<$loadfile>;
                    142:     }
1.1       albertel  143:     $loadavg =~ s/\s.*//g;
1.57      matthew   144:     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41      albertel  145:     my $userloadpercent=&Apache::lonnet::userload();
1.1       albertel  146: 
1.30      www       147: # ------------------------------------------------------- Do the load balancing
1.80      albertel  148:     my $otherserver= &Apache::lonnet::absolute_url($host_name);
1.31      www       149:     my $firsturl=
1.63      albertel  150:     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.97    ! albertel  151: # ---------------------------------------------------------- Are we overloaded?
        !           152:     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  153:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    154: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  155:     }
1.6       www       156: 
1.45      www       157: # ----------------------------------------------------------- Get announcements
                    158:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       159: # -------------------------------------------------------- Set login parameters
                    160: 
                    161:     my @hexstr=('0','1','2','3','4','5','6','7',
                    162:                 '8','9','a','b','c','d','e','f');
                    163:     my $lkey='';
                    164:     for (0..7) {
                    165:         $lkey.=$hexstr[rand(15)];
                    166:     }
                    167: 
                    168:     my $ukey='';
                    169:     for (0..7) {
                    170:         $ukey.=$hexstr[rand(15)];
                    171:     }
                    172: 
                    173:     my $lextkey=hex($lkey);
1.15      www       174:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    175: 
1.6       www       176:     my $uextkey=hex($ukey);
1.15      www       177:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    178: 
1.31      www       179: # -------------------------------------------------------- Store away log token
1.6       www       180:     my $logtoken=Apache::lonnet::reply(
1.7       www       181:        'tmpput:'.$ukey.$lkey.'&'.$firsturl,
1.6       www       182:        $lonhost);
1.31      www       183: 
                    184: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    185: 
                    186:     if ($logtoken eq 'con_lost') {
                    187:         my $spares='';
1.64      albertel  188: 	my $last;
                    189:         foreach my $hostid (sort
                    190: 			    {
1.88      albertel  191: 				&Apache::lonnet::hostname($a) cmp
                    192: 				    &Apache::lonnet::hostname($b);
1.64      albertel  193: 			    }
                    194: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   195:             next if ($hostid eq $lonhost);
1.88      albertel  196: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    197: 	    next if ($last eq $hostname);
1.58      matthew   198:             $spares.='<br /><font size="+1"><a href="http://'.
1.88      albertel  199:                 $hostname.
1.58      matthew   200:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  201:                 $hostname.'</a>'.
1.58      matthew   202:                 ' (preferred)</font>'.$/;
1.88      albertel  203: 	    $last=$hostname;
1.58      matthew   204:         }
                    205:         $spares.= '<br />';
1.88      albertel  206: 	my %all_hostnames = &Apache::lonnet::all_hostnames();
1.64      albertel  207:         foreach my $hostid (sort
                    208: 			    {
1.88      albertel  209: 				&Apache::lonnet::hostname($a) cmp
                    210: 				    &Apache::lonnet::hostname($b);
1.64      albertel  211: 			    }
1.88      albertel  212: 			    keys(%all_hostnames)) {
1.58      matthew   213:             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.88      albertel  214: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    215:             next if ($last eq $hostname);
1.58      matthew   216:             $spares.='<br /><a href="http://'.
1.88      albertel  217:                 $hostname.
1.58      matthew   218:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  219:                 $hostname.'</a>';
                    220: 	    $last=$hostname;
1.31      www       221:         }
                    222: 	$r->print(<<ENDTROUBLE);
                    223: <html>
                    224: <head><title>The LearningOnline Network with CAPA</title></head>
                    225: <body bgcolor="#FFFFFF">
                    226: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
                    227: <h3>This LON-CAPA server is temporarily not available for login</h3>
                    228: <p>Please attempt to login to one of the following servers:</p>$spares
                    229: </body>
                    230: </html>
                    231: ENDTROUBLE
                    232:         return OK;
                    233:     }
                    234: 
                    235: # ----------------------------------------------- Apparently we are in business
1.90      raeburn   236:     $servadm=~s/\,/\<br \/\>/g;
1.38      www       237: 
1.6       www       238: # --------------------------------------------------- Print login screen header
                    239:     $r->print(<<ENDHEADER);
1.1       albertel  240: <html>
                    241: <head>
1.37      www       242: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
1.2       www       243: <title>The LearningOnline Network with CAPA Login</title>
1.1       albertel  244: </head>
1.6       www       245: ENDHEADER
                    246: # ---------------------------------------------------- Serve out DES JavaScript
                    247:     {
                    248: 	my $jsh=Apache::File->new($include."/londes.js");
                    249:         $r->print(<$jsh>);
                    250:     }
1.21      www       251: 
                    252: # ----------------------------------------------------------- Front page design
1.35      www       253:     my $pgbg=
1.46      www       254:       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35      www       255:     my $font=
1.46      www       256:       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35      www       257:     my $link=
1.46      www       258:       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35      www       259:     my $vlink=
1.46      www       260:       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
                    261:     my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35      www       262:     my $mainbg=
1.46      www       263:       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35      www       264:     my $sidebg=
1.46      www       265:       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
                    266:     my $logo=&Apache::loncommon::designparm('login.logo',$domain);
                    267:     my $img=&Apache::loncommon::designparm('login.img',$domain);
1.90      raeburn   268:     my $domainlogo=&Apache::loncommon::domainlogo($domain);
                    269:     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',                                                      $domain);
                    270:     my $showcoursecat =
                    271:         &Apache::loncommon::designparm('login.coursecatalog',$domain);
                    272: 
1.21      www       273: 
1.51      www       274: # ----------------------------------------------------------------------- Texts
                    275: 
                    276: my %lt=&Apache::lonlocal::texthash(
                    277: 		  'un'  => 'Username',
                    278: 		  'pw'  => 'Password',
                    279: 		  'dom' => 'Domain',
                    280: 		  'perc' => 'percent',
1.52      www       281: 		  'load' => 'Load',
                    282:                   'userload' => 'User Load',
1.84      raeburn   283:                   'about'  => 'About LON-CAPA',
                    284:                   'access' => 'Accessibility Options',
                    285:                   'catalog' => 'Course Catalog',
1.52      www       286: 		  'auth' => 'userauthentication.gif',
1.51      www       287: 		  'log' => 'Log in',
1.84      raeburn   288: 		  'help' => 'Log-in Help',
1.51      www       289: 		  'serv' => 'Server',
1.90      raeburn   290:                   'servadm' => 'Server Administration',
1.83      raeburn   291:                   'helpdesk' => 'Contact Helpdesk',
                    292:                   'forgotpw' => 'Forgot password?');
1.66      www       293: # -------------------------------------------------- Change password field name
                    294:     my $now=time;
1.84      raeburn   295:     my $forgotpw = &forgotpwdisplay(%lt);
                    296:     my $loginhelp = &loginhelpdisplay(%lt);
1.6       www       297: # ---------------------------------------------------------- Serve rest of page
1.16      www       298:     $r->print(<<ENDSCRIPT);
1.6       www       299: 
1.21      www       300: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
1.27      albertel  301:   topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
1.6       www       302: 
1.14      albertel  303:  <script language="JavaScript">
                    304:     function send()
                    305:     {
1.6       www       306: 	this.document.server.elements.uname.value
                    307:        =this.document.client.elements.uname.value;
                    308: 
                    309:         this.document.server.elements.udom.value
                    310:        =this.document.client.elements.udom.value;
                    311: 
1.33      www       312:         this.document.server.elements.imagesuppress.value
1.36      www       313:        =this.document.client.elements.imagesuppress.checked;
1.33      www       314: 
                    315:         this.document.server.elements.embedsuppress.value
1.36      www       316:        =this.document.client.elements.embedsuppress.checked;
1.33      www       317: 
1.34      www       318:         this.document.server.elements.appletsuppress.value
1.36      www       319:        =this.document.client.elements.appletsuppress.checked;
1.34      www       320: 
1.33      www       321:         this.document.server.elements.fontenhance.value
1.36      www       322:        =this.document.client.elements.fontenhance.checked;
1.33      www       323: 
                    324:         this.document.server.elements.blackwhite.value
1.36      www       325:        =this.document.client.elements.blackwhite.checked;
1.33      www       326: 
1.35      www       327:         this.document.server.elements.remember.value
1.36      www       328:        =this.document.client.elements.remember.checked;
1.35      www       329: 
1.6       www       330:         uextkey=this.document.client.elements.uextkey.value;
                    331:         lextkey=this.document.client.elements.lextkey.value;
                    332:         initkeys();
                    333: 
1.65      www       334:         this.document.server.elements.upass0.value
1.66      www       335: 	    =crypted(this.document.client.elements.upass$now.value.substr(0,15));
1.65      www       336: 	this.document.server.elements.upass1.value
1.66      www       337: 	    =crypted(this.document.client.elements.upass$now.value.substr(15,15));
1.65      www       338: 	this.document.server.elements.upass2.value
1.66      www       339: 	    =crypted(this.document.client.elements.upass$now.value.substr(30,15));
                    340: 
                    341:         this.document.client.elements.uname.value='';
                    342:         this.document.client.elements.upass$now.value='';
1.6       www       343: 
                    344:         this.document.server.submit();
1.19      bowersj2  345: 	return false;
1.6       www       346:     }
1.14      albertel  347:  </script>
1.16      www       348: ENDSCRIPT
1.6       www       349: 
1.16      www       350:     if ($fullgraph) {
                    351: 	$r->print(
                    352: 		  '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
                    353:     }
1.6       www       354: 
1.16      www       355:     $r->print(<<ENDSERVERFORM);
1.14      albertel  356:   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33      www       357:    <input type="hidden" name="logtoken" value="$logtoken" />
                    358:    <input type="hidden" name="serverid" value="$lonhost" />
1.63      albertel  359:    <input type="hidden" name="interface" value="$env{'form.interface'}" />
1.33      www       360:    <input type="hidden" name="uname" value="" />
1.65      www       361:    <input type="hidden" name="upass0" value="" />
                    362:    <input type="hidden" name="upass1" value="" />
                    363:    <input type="hidden" name="upass2" value="" />
1.33      www       364:    <input type="hidden" name="udom" value="" />
                    365:    <input type="hidden" name="imagesuppress"  value="" />
1.34      www       366:    <input type="hidden" name="appletsuppress"  value="" />
1.33      www       367:    <input type="hidden" name="embedsuppress"  value="" />
                    368:    <input type="hidden" name="fontenhance"  value="" />
                    369:    <input type="hidden" name="blackwhite"  value="" />
1.35      www       370:    <input type="hidden" name="remember"  value="" />
1.63      albertel  371:    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
                    372:    <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14      albertel  373:   </form>
1.16      www       374: ENDSERVERFORM
1.90      raeburn   375:     my $coursecatalog;
1.92      raeburn   376:     if (($showcoursecat eq '') || ($showcoursecat)) {
1.90      raeburn   377:         $coursecatalog = &coursecatalog_link($lt{'catalog'});
                    378:     }
1.16      www       379:     if ($fullgraph) { $r->print(<<ENDTOP);
1.14      albertel  380:   <!-- The LON-CAPA Header -->
                    381:   <tr>
                    382: 
                    383:    <!-- Row 1 Columns 2-4 -->
1.29      www       384:    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
1.14      albertel  385:   </tr>
                    386: 
                    387:   <!-- The gray bar that starts the two table frames -->
                    388:   <tr>
                    389: 
                    390:    <!-- Row 2 Column 1 -->
1.21      www       391:    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  392: 
                    393:    <!-- Row 2 Column 2 -->
1.19      bowersj2  394:    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14      albertel  395: 
                    396:    <!-- Row 2 Column 3 -->
1.19      bowersj2  397:    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14      albertel  398: 
                    399:    <!-- Row 2 Column 4 -->
1.19      bowersj2  400:    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14      albertel  401:   </tr>
                    402:   <tr>
                    403:    
1.84      raeburn   404:    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
1.14      albertel  405:    <!-- Row 3 Column 1 -->
1.86      raeburn   406:    <td valign="top" height="60" align="left" bgcolor="$sidebg">
1.84      raeburn   407:     <table cellpadding="0" cellspacing="2" border="0">
                    408:      <tr>
                    409:       <td>&nbsp;</td>
                    410:       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
1.86      raeburn   411:      </tr>
                    412:      <tr>
                    413:       <td>&nbsp;</td>
                    414:       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
1.90      raeburn   415:      </tr>$coursecatalog
1.86      raeburn   416:      <tr>
1.84      raeburn   417:       <td colspan="2">&nbsp;</td>
1.86      raeburn   418:      </tr>
                    419:     </table>
                    420:    </td>
1.14      albertel  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: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
1.33      www       455: ENDACCESSOPTIONS
                    456: } else {
                    457:     $r->print(<<ENDNOOPT);
                    458: <input type="hidden" name="imagesuppress"  value="" />
                    459: <input type="hidden" name="embedsuppress"  value="" />
1.34      www       460: <input type="hidden" name="appletsuppress"  value="" />
1.33      www       461: <input type="hidden" name="fontenhance"  value="" />
                    462: <input type="hidden" name="blackwhite"  value="" />
1.35      www       463: <input type="hidden" name="remember"  value="" />
1.33      www       464: ENDNOOPT
1.16      www       465: }
                    466:     $r->print(<<ENDLOGIN);
1.14      albertel  467:      <input type="hidden" name="lextkey" value="$lextkey">
                    468:      <input type="hidden" name="uextkey" value="$uextkey">
                    469: 
                    470:      <!-- Start the sub-table for text and input alignment -->
                    471:      <table border=0 cellspacing=0 cellpadding=0>
1.52      www       472:       <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
1.14      albertel  473:       <tr>
1.93      www       474:        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>
1.30      www       475:        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14      albertel  476:       </tr>
                    477:       <tr>
1.93      www       478:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>
1.66      www       479:        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14      albertel  480:       </tr>
                    481:       <tr>
1.93      www       482:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>
1.30      www       483:        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14      albertel  484:       </tr>
                    485:       <tr>
1.84      raeburn   486:        <td bgcolor="$mainbg">&nbsp;</td>
1.28      www       487:        <td bgcolor="$mainbg" valign="bottom" align="center">
1.14      albertel  488:         <br />
1.51      www       489:         <input type="submit" value="$lt{'log'}" />
1.14      albertel  490:        </td>
                    491:       </tr>
1.83      raeburn   492:       <tr>
                    493:        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
1.84      raeburn   494:         $loginhelp
1.83      raeburn   495:         $forgotpw
                    496:        </td>
                    497:       </tr>
1.14      albertel  498:      </table>
                    499:      <!-- End sub-table -->
                    500:     </form>
1.16      www       501: ENDLOGIN
                    502:     if ($fullgraph) {
1.62      raeburn   503:         my $helpdeskscript;
1.90      raeburn   504:         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                    505:                                   $version,$authdomain,\$helpdeskscript);
1.16      www       506: 	$r->print(<<ENDDOCUMENT);
1.14      albertel  507:    </td>
                    508: 
                    509:    <!-- Row 4 Column 2 -->
1.19      bowersj2  510:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45      www       511: 
                    512:    <!-- Row 4 Column 3 -->
                    513: <td bgcolor="$mainbg">$announcements</td>
1.14      albertel  514: 
                    515:    <!-- Row 4 Column 4 -->
1.19      bowersj2  516:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  517:   </tr>
                    518:   <tr>
                    519: 
                    520:    <!-- Row 5 Column 1 -->
1.21      www       521:    <td bgcolor="$sidebg" valign="middle" align="left">
1.14      albertel  522:      <br />
                    523:      <table border=0 cellspacing=0 cellpadding=0>
                    524:       <tr>
1.21      www       525:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       526:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  527:        </td>
1.21      www       528:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  529:         <small><tt>&nbsp;$domain</tt></small>
                    530:        </td>
                    531:       </tr>
                    532:       <tr>
1.21      www       533:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       534:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  535:        </td>
1.21      www       536:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  537:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    538:        </td>
                    539:       </tr>
                    540:       <tr>
1.21      www       541:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       542:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>
1.14      albertel  543:        </td>
1.21      www       544:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       545:         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
1.42      albertel  546:        </td>
                    547:       </tr>
                    548:       <tr>
                    549:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       550:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>
1.42      albertel  551:        </td>
                    552:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       553:         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
1.14      albertel  554:        </td>
                    555:       </tr>
                    556:      </table>
                    557:      <br />
1.60      raeburn   558:     $contactblock
1.14      albertel  559:    </td>
                    560: 
                    561:    <!-- Row 5 Column 2 -->
1.19      bowersj2  562:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  563: 
                    564:    <!-- Row 5 Column 3 -->
1.21      www       565:    <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20      www       566: $domainlogo
                    567: </td>
1.14      albertel  568: 
                    569:    <!-- Row 5 Column 4 -->
1.19      bowersj2  570:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  571:   </tr>
                    572:   <tr>
                    573: 
                    574:    <!-- Row 6 Column 1 -->
1.21      www       575:    <td bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  576: 
                    577:    <!-- Row 6 Column 2 -->
1.19      bowersj2  578:    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14      albertel  579: 
                    580:    <!-- Row 6 Column 3 -->
1.19      bowersj2  581:    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14      albertel  582: 
                    583:    <!-- Row 6 Column 4 -->
1.19      bowersj2  584:    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14      albertel  585:   </tr>
1.1       albertel  586:  </table>
1.25      bowersj2  587: 
1.59      albertel  588: <script type="text/javascript">
                    589: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  590: if ( document.client.uname ) { document.client.uname.focus(); }
                    591: </script>
1.62      raeburn   592: $helpdeskscript
1.14      albertel  593: 
1.1       albertel  594: ENDDOCUMENT
1.16      www       595: }
                    596:     $r->print('</body></html>');
1.1       albertel  597:     return OK;
1.60      raeburn   598: }
                    599: 
                    600: sub contactdisplay {
1.90      raeburn   601:     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   602:     my $contactblock;
1.62      raeburn   603:     my $showhelpdesk = 0;
                    604:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    605:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    606:         $showhelpdesk = 1;
                    607:     }
1.90      raeburn   608:     if ($servadm && $showadminmail) {
                    609:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                    610:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
                    611:     }
1.60      raeburn   612:     if ($showhelpdesk) {
1.84      raeburn   613:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
1.75      www       614:         my $thisurl = &escape('/adm/login');
1.62      raeburn   615:         $$helpdeskscript = <<"ENDSCRIPT";
                    616: <script type="text/javascript">
                    617: function helpdesk() {
                    618:     var codedom = document.client.udom.value;
                    619:     if (codedom == '') {
                    620:         codedom = "$authdomain";
                    621:     }
                    622:     var querystr = "origurl=$thisurl&codedom="+codedom;
                    623:     document.location.href = "/adm/helpdesk?"+querystr;
                    624:     return;
                    625: }
                    626: </script>
                    627: ENDSCRIPT
1.60      raeburn   628:     }
                    629:     $contactblock .= <<"ENDBLOCK";
                    630:      &nbsp;&nbsp;&nbsp;$version
                    631: ENDBLOCK
                    632:     return $contactblock;
                    633: }
1.83      raeburn   634: 
                    635: sub forgotpwdisplay {
1.84      raeburn   636:     my (%lt) = @_;
1.83      raeburn   637:     my $prompt_for_resetpw = 1; 
                    638:     if ($prompt_for_resetpw) {
1.84      raeburn   639:         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
                    640:     }
                    641:     return;
                    642: }
                    643: 
                    644: sub loginhelpdisplay {
                    645:     my (%lt) = @_;
                    646:     my $login_help = 1;
                    647:     if ($login_help) {
                    648:         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
1.83      raeburn   649:     }
                    650:     return;
                    651: }
1.1       albertel  652: 
1.90      raeburn   653: sub coursecatalog_link {
                    654:     my ($linkname) = @_;
                    655:     return <<"END";
                    656:      <tr>
                    657:       <td>&nbsp;</td>
                    658:       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
                    659:      </tr>
                    660: END
                    661: }
                    662: 
1.1       albertel  663: 1;
                    664: __END__

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