Annotation of loncom/auth/lonlogin.pm, revision 1.75

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.75    ! www         4: # $Id: lonlogin.pm,v 1.74 2006/04/05 22:39:55 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 $r = shift;
1.71      albertel   46: 
                     47:     &Apache::loncommon::get_unprocessed_cgi
                     48: 	($ENV{'QUERY_STRING'}.'&'.$env{'request.querystring'},
                     49: 	 ['interface','username','domain','firsturl','localpath','localres',
                     50: 	  'token']);
                     51: 
                     52: # -- check if they are a migrating user
                     53:     if (defined($env{'form.token'})) {
                     54: 	return &Apache::migrateuser::handler($r);
                     55:     }
                     56: 
1.53      www        57:     &Apache::loncommon::no_cache($r);
                     58:     &Apache::lonlocal::get_language_handle($r);
1.54      www        59:     &Apache::loncommon::content_type($r,'text/html');
1.1       albertel   60:     $r->send_http_header;
                     61:     return OK if $r->header_only;
                     62: 
1.49      www        63: 
                     64: # Are we re-routing?
                     65:     if (-e '/home/httpd/html/lon-status/reroute.txt') {
                     66: 	&Apache::lonauth::reroute($r);
                     67: 	return OK;
                     68:     }
1.55      www        69: 
1.71      albertel   70: 
1.55      www        71: # -------------------------------- Prevent users from attempting to login twice
                     72:     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
                     73:     my $lonid=$cookies{'lonID'};
                     74:     my $cookie;
                     75:     if ($lonid) {
                     76: 	my $handle=$lonid->value;
                     77:         $handle=~s/\W//g;
                     78:         my $lonidsdir=$r->dir_config('lonIDsDir');
1.70      www        79: 	if (-e "$lonidsdir/$handle.id") {
                     80: # Is there an existing token file?
                     81: 	    if ($handle=~/^publicuser\_/) {
                     82: # For "public user" - remove it, we apparently really want to login
                     83: 		unlink("$lonidsdir/$handle.id");
                     84: 	    } elsif ($handle ne '') {
1.55      www        85: # Indeed, a valid token is found
1.74      albertel   86: 		my $start_page = 
                     87: 		    &Apache::loncommon::start_page('Already logged in');
                     88: 		my $end_page = 
                     89: 		    &Apache::loncommon::end_page();
1.70      www        90: 		$r->print(<<ENDFAILED);
1.74      albertel   91: $start_page
1.55      www        92: <h1>You are already logged in</h1>
                     93: <p>Please either <a href="/adm/roles">continue the current session</a> or
                     94: <a href="/adm/logout">logout</a>.</p>
                     95: <p>
                     96: <a href="/adm/loginproblems.html">Problems?</a></p>
1.74      albertel   97: $end_page
1.55      www        98: ENDFAILED
1.70      www        99:                 return OK;
                    100:  	    }  
1.55      www       101: 	}
                    102:     }
                    103: 
                    104: # ---------------------------------------------------- No valid token, continue
1.16      www       105: 
1.70      www       106:  # ---------------------------- Not possible to really login to domain "public"
                    107:     if ($env{'form.domain'} eq 'public') {
                    108: 	$env{'form.domain'}='';
                    109: 	$env{'form.username'}='';
                    110:     }
1.32      www       111: # ----------------------------------------------------------- Process Interface
1.63      albertel  112:     $env{'form.interface'}=~s/\W//g;
1.16      www       113: 
1.32      www       114:     my $textbrowsers=$r->dir_config('lonTextBrowsers');
                    115:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
                    116:     
                    117:     foreach (split(/\:/,$textbrowsers)) {
                    118: 	if ($httpbrowser=~/$_/i) {
1.63      albertel  119: 	    $env{'form.interface'}='textual';
1.32      www       120:         }
                    121:     }
                    122: 
1.63      albertel  123:     my $fullgraph=($env{'form.interface'} ne 'textual');
1.40      albertel  124:     my $port_to_use=$r->dir_config('lonhttpdPort');
                    125:     if (!defined($port_to_use)) {
                    126: 	$port_to_use='8080';
                    127:     }
                    128:     my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use.
1.26      www       129:                   $r->dir_config('lonIconsURL');
1.1       albertel  130:     my $domain  = $r->dir_config('lonDefDomain');
1.68      albertel  131:     my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
                    132:     foreach my $posdom (&Apache::lonnet::current_machine_domains()) {
1.73      albertel  133: 	if (lc($posdom) eq lc($testdomain)) { $domain=$posdom; }
1.68      albertel  134:     }
1.63      albertel  135:     if (($env{'form.domain'}) && 
                    136: 	 ($Apache::lonnet::domaindescription{$env{'form.domain'}})) {
                    137: 	$domain=$env{'form.domain'};
1.46      www       138:     }
1.1       albertel  139:     my $role    = $r->dir_config('lonRole');
                    140:     my $loadlim = $r->dir_config('lonLoadLim');
                    141:     my $servadm = $r->dir_config('lonAdmEMail');
                    142:     my $sysadm  = $r->dir_config('lonSysEMail');
                    143:     my $lonhost = $r->dir_config('lonHostID');
                    144:     my $tabdir  = $r->dir_config('lonTabDir');
1.6       www       145:     my $include = $r->dir_config('lonIncludes');
1.37      www       146:     my $expire  = $r->dir_config('lonExpire');
1.44      www       147:     my $version = $r->dir_config('lonVersion');
1.1       albertel  148: 
1.30      www       149: # --------------------------------------------- Default values for login fields
                    150: 
1.63      albertel  151:     my $authusername=($env{'form.username'}?$env{'form.username'}:'');
                    152:     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30      www       153: 
                    154: # ---------------------------------------------------------- Determine own load
1.1       albertel  155:     my $loadavg;
1.41      albertel  156:     {
                    157: 	my $loadfile=Apache::File->new('/proc/loadavg');
                    158: 	$loadavg=<$loadfile>;
                    159:     }
1.1       albertel  160:     $loadavg =~ s/\s.*//g;
1.57      matthew   161:     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41      albertel  162:     my $userloadpercent=&Apache::lonnet::userload();
1.1       albertel  163: 
1.30      www       164: # ------------------------------------------------------- Do the load balancing
1.10      www       165:     my $otherserver='http://'.$ENV{'SERVER_NAME'};
1.31      www       166:     my $firsturl=
1.63      albertel  167:     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.1       albertel  168: # ---------------------------------------- Are we access server and overloaded?
1.41      albertel  169:     if (($role eq 'access') &&
                    170: 	(($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  171:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    172: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  173:     }
1.6       www       174: 
1.45      www       175: # ----------------------------------------------------------- Get announcements
                    176:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       177: # -------------------------------------------------------- Set login parameters
                    178: 
                    179:     my @hexstr=('0','1','2','3','4','5','6','7',
                    180:                 '8','9','a','b','c','d','e','f');
                    181:     my $lkey='';
                    182:     for (0..7) {
                    183:         $lkey.=$hexstr[rand(15)];
                    184:     }
                    185: 
                    186:     my $ukey='';
                    187:     for (0..7) {
                    188:         $ukey.=$hexstr[rand(15)];
                    189:     }
                    190: 
                    191:     my $lextkey=hex($lkey);
1.15      www       192:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    193: 
1.6       www       194:     my $uextkey=hex($ukey);
1.15      www       195:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    196: 
1.31      www       197: # -------------------------------------------------------- Store away log token
1.6       www       198:     my $logtoken=Apache::lonnet::reply(
1.7       www       199:        'tmpput:'.$ukey.$lkey.'&'.$firsturl,
1.6       www       200:        $lonhost);
1.31      www       201: 
                    202: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    203: 
                    204:     if ($logtoken eq 'con_lost') {
                    205:         my $spares='';
1.64      albertel  206: 	my $last;
                    207:         foreach my $hostid (sort
                    208: 			    {
                    209: 				$Apache::lonnet::hostname{$a} cmp
                    210: 				    $Apache::lonnet::hostname{$b};
                    211: 			    }
                    212: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   213:             next if ($hostid eq $lonhost);
1.64      albertel  214:             next if ($last eq $Apache::lonnet::hostname{$hostid});
1.58      matthew   215:             $spares.='<br /><font size="+1"><a href="http://'.
                    216:                 $Apache::lonnet::hostname{$hostid}.
                    217:                 '/adm/login?domain='.$authdomain.'">'.
                    218:                 $Apache::lonnet::hostname{$hostid}.'</a>'.
                    219:                 ' (preferred)</font>'.$/;
1.64      albertel  220: 	    $last=$Apache::lonnet::hostname{$hostid};
1.58      matthew   221:         }
                    222:         $spares.= '<br />';
1.64      albertel  223:         foreach my $hostid (sort
                    224: 			    {
                    225: 				$Apache::lonnet::hostname{$a} cmp
                    226: 				    $Apache::lonnet::hostname{$b};
                    227: 			    }
                    228: 			    keys(%Apache::lonnet::hostname)) {
1.58      matthew   229:             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.64      albertel  230:             next if ($last eq $Apache::lonnet::hostname{$hostid});
1.58      matthew   231:             $spares.='<br /><a href="http://'.
                    232:                 $Apache::lonnet::hostname{$hostid}.
                    233:                 '/adm/login?domain='.$authdomain.'">'.
                    234:                 $Apache::lonnet::hostname{$hostid}.'</a>';
1.64      albertel  235: 	    $last=$Apache::lonnet::hostname{$hostid};
1.31      www       236:         }
                    237: 	$r->print(<<ENDTROUBLE);
                    238: <html>
                    239: <head><title>The LearningOnline Network with CAPA</title></head>
                    240: <body bgcolor="#FFFFFF">
                    241: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
                    242: <h3>This LON-CAPA server is temporarily not available for login</h3>
                    243: <p>Please attempt to login to one of the following servers:</p>$spares
                    244: <p>If the problem persists, please contact <tt>$servadm</tt>.</p>
                    245: </body>
                    246: </html>
                    247: ENDTROUBLE
                    248:         return OK;
                    249:     }
                    250: 
                    251: # ----------------------------------------------- Apparently we are in business
                    252: 
1.48      albertel  253:     my $domainlogo=&Apache::loncommon::domainlogo($domain);
1.38      www       254:     $servadm=~s/\,/\<br \/\>/g;
                    255:     $sysadm=~s/\,/\<br \/\>/g;
                    256: 
1.6       www       257: # --------------------------------------------------- Print login screen header
                    258:     $r->print(<<ENDHEADER);
1.1       albertel  259: <html>
                    260: <head>
1.37      www       261: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
1.2       www       262: <title>The LearningOnline Network with CAPA Login</title>
1.1       albertel  263: </head>
1.6       www       264: ENDHEADER
                    265: # ---------------------------------------------------- Serve out DES JavaScript
                    266:     {
                    267: 	my $jsh=Apache::File->new($include."/londes.js");
                    268:         $r->print(<$jsh>);
                    269:     }
1.21      www       270: 
                    271: # ----------------------------------------------------------- Front page design
1.35      www       272:     my $pgbg=
1.46      www       273:       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35      www       274:     my $font=
1.46      www       275:       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35      www       276:     my $link=
1.46      www       277:       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35      www       278:     my $vlink=
1.46      www       279:       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
                    280:     my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35      www       281:     my $mainbg=
1.46      www       282:       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35      www       283:     my $sidebg=
1.46      www       284:       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
                    285:     my $logo=&Apache::loncommon::designparm('login.logo',$domain);
                    286:     my $img=&Apache::loncommon::designparm('login.img',$domain);
1.21      www       287: 
1.51      www       288: # ----------------------------------------------------------------------- Texts
                    289: 
                    290: my %lt=&Apache::lonlocal::texthash(
                    291: 		  'un'  => 'Username',
                    292: 		  'pw'  => 'Password',
                    293: 		  'dom' => 'Domain',
                    294: 		  'perc' => 'percent',
1.52      www       295: 		  'load' => 'Load',
                    296:                   'userload' => 'User Load',
                    297:                   'about'  => 'aboutlon.gif',
                    298:                   'access' => 'accessbutton.gif',
                    299: 		  'auth' => 'userauthentication.gif',
1.51      www       300: 		  'log' => 'Log in',
                    301: 		  'help' => 'Help',
                    302: 		  'serv' => 'Server',
                    303:                   'servadm' => 'Server Administration',
1.60      raeburn   304:                   'sysadm' => 'System Administration',
                    305:                   'helpdesk' => 'Contact Helpdesk');
1.66      www       306: # -------------------------------------------------- Change password field name
                    307:     my $now=time;
1.6       www       308: # ---------------------------------------------------------- Serve rest of page
1.16      www       309:     $r->print(<<ENDSCRIPT);
1.6       www       310: 
1.21      www       311: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
1.27      albertel  312:   topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
1.6       www       313: 
1.14      albertel  314:  <script language="JavaScript">
                    315:     function send()
                    316:     {
1.6       www       317: 	this.document.server.elements.uname.value
                    318:        =this.document.client.elements.uname.value;
                    319: 
                    320:         this.document.server.elements.udom.value
                    321:        =this.document.client.elements.udom.value;
                    322: 
1.33      www       323:         this.document.server.elements.imagesuppress.value
1.36      www       324:        =this.document.client.elements.imagesuppress.checked;
1.33      www       325: 
                    326:         this.document.server.elements.embedsuppress.value
1.36      www       327:        =this.document.client.elements.embedsuppress.checked;
1.33      www       328: 
1.34      www       329:         this.document.server.elements.appletsuppress.value
1.36      www       330:        =this.document.client.elements.appletsuppress.checked;
1.34      www       331: 
1.33      www       332:         this.document.server.elements.fontenhance.value
1.36      www       333:        =this.document.client.elements.fontenhance.checked;
1.33      www       334: 
                    335:         this.document.server.elements.blackwhite.value
1.36      www       336:        =this.document.client.elements.blackwhite.checked;
1.33      www       337: 
1.35      www       338:         this.document.server.elements.remember.value
1.36      www       339:        =this.document.client.elements.remember.checked;
1.35      www       340: 
1.6       www       341:         uextkey=this.document.client.elements.uextkey.value;
                    342:         lextkey=this.document.client.elements.lextkey.value;
                    343:         initkeys();
                    344: 
1.65      www       345:         this.document.server.elements.upass0.value
1.66      www       346: 	    =crypted(this.document.client.elements.upass$now.value.substr(0,15));
1.65      www       347: 	this.document.server.elements.upass1.value
1.66      www       348: 	    =crypted(this.document.client.elements.upass$now.value.substr(15,15));
1.65      www       349: 	this.document.server.elements.upass2.value
1.66      www       350: 	    =crypted(this.document.client.elements.upass$now.value.substr(30,15));
                    351: 
                    352:         this.document.client.elements.uname.value='';
                    353:         this.document.client.elements.upass$now.value='';
1.6       www       354: 
                    355:         this.document.server.submit();
1.19      bowersj2  356: 	return false;
1.6       www       357:     }
1.14      albertel  358:  </script>
1.16      www       359: ENDSCRIPT
1.6       www       360: 
1.16      www       361:     if ($fullgraph) {
                    362: 	$r->print(
                    363: 		  '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
                    364:     }
1.6       www       365: 
1.16      www       366:     $r->print(<<ENDSERVERFORM);
1.14      albertel  367:   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33      www       368:    <input type="hidden" name="logtoken" value="$logtoken" />
                    369:    <input type="hidden" name="serverid" value="$lonhost" />
1.63      albertel  370:    <input type="hidden" name="interface" value="$env{'form.interface'}" />
1.33      www       371:    <input type="hidden" name="uname" value="" />
1.65      www       372:    <input type="hidden" name="upass0" value="" />
                    373:    <input type="hidden" name="upass1" value="" />
                    374:    <input type="hidden" name="upass2" value="" />
1.33      www       375:    <input type="hidden" name="udom" value="" />
                    376:    <input type="hidden" name="imagesuppress"  value="" />
1.34      www       377:    <input type="hidden" name="appletsuppress"  value="" />
1.33      www       378:    <input type="hidden" name="embedsuppress"  value="" />
                    379:    <input type="hidden" name="fontenhance"  value="" />
                    380:    <input type="hidden" name="blackwhite"  value="" />
1.35      www       381:    <input type="hidden" name="remember"  value="" />
1.63      albertel  382:    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
                    383:    <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14      albertel  384:   </form>
1.16      www       385: ENDSERVERFORM
                    386:     if ($fullgraph) { $r->print(<<ENDTOP);
1.14      albertel  387:   <!-- The LON-CAPA Header -->
                    388:   <tr>
                    389: 
                    390:    <!-- Row 1 Columns 2-4 -->
1.29      www       391:    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
1.14      albertel  392:   </tr>
                    393: 
                    394:   <!-- The gray bar that starts the two table frames -->
                    395:   <tr>
                    396: 
                    397:    <!-- Row 2 Column 1 -->
1.21      www       398:    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  399: 
                    400:    <!-- Row 2 Column 2 -->
1.19      bowersj2  401:    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14      albertel  402: 
                    403:    <!-- Row 2 Column 3 -->
1.19      bowersj2  404:    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14      albertel  405: 
                    406:    <!-- Row 2 Column 4 -->
1.19      bowersj2  407:    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14      albertel  408:   </tr>
                    409:   <tr>
                    410:    
                    411:    <!-- A cell that will hold the 'access' and 'about' buttons -->
                    412:    <!-- Row 3 Column 1 -->
1.21      www       413:    <td valign="top" height=60 align="center" bgcolor="$sidebg">
1.52      www       414:     <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a>
1.14      albertel  415:     <br />
1.52      www       416:     <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a>
1.14      albertel  417:    </td>
                    418: 
                    419:    <!-- The shaded space between the two main columns -->
                    420:    <!-- Row 3 Column 2 -->
1.19      bowersj2  421:    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  422: 
                    423:    <!-- The right main column holding the large LON-CAPA logo-->
                    424:    <!-- Rows 3-4 Column 3 -->
1.45      www       425:    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
1.14      albertel  426:     <center>
1.21      www       427:      <img src="$logo" alt="" />
1.14      albertel  428:     </center>
                    429:    </td>
                    430: 
                    431:    <!-- Row 3 Column 4 -->
1.19      bowersj2  432:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  433:   </tr>
                    434:   <tr>
                    435: 
                    436:    <!-- The entry form -->
                    437:    <!-- Row 4 Column 1 -->
1.21      www       438:    <td align="center" valign="middle" bgcolor="$sidebg">
1.16      www       439: ENDTOP
1.32      www       440: } else {
1.45      www       441:     $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
1.33      www       442: }
                    443:     $r->print('<form name="client" onsubmit="return(send())">');
                    444:     unless ($fullgraph) {
                    445:         $r->print(<<ENDACCESSOPTIONS);
1.35      www       446: <h3>Select Accessibility Options</h3>
1.67      albertel  447: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
                    448: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
                    449: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
                    450: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
                    451: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
1.35      www       452: <p>If you have accessibility needs that are not addressed by this interface, 
                    453: please
                    454: contact the system administrator at <tt>$sysadm</tt>.</p><br />
                    455: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
1.33      www       456: ENDACCESSOPTIONS
                    457: } else {
                    458:     $r->print(<<ENDNOOPT);
                    459: <input type="hidden" name="imagesuppress"  value="" />
                    460: <input type="hidden" name="embedsuppress"  value="" />
1.34      www       461: <input type="hidden" name="appletsuppress"  value="" />
1.33      www       462: <input type="hidden" name="fontenhance"  value="" />
                    463: <input type="hidden" name="blackwhite"  value="" />
1.35      www       464: <input type="hidden" name="remember"  value="" />
1.33      www       465: ENDNOOPT
1.16      www       466: }
                    467:     $r->print(<<ENDLOGIN);
1.14      albertel  468:      <input type="hidden" name="lextkey" value="$lextkey">
                    469:      <input type="hidden" name="uextkey" value="$uextkey">
                    470: 
                    471:      <!-- Start the sub-table for text and input alignment -->
                    472:      <table border=0 cellspacing=0 cellpadding=0>
1.52      www       473:       <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
1.14      albertel  474:       <tr>
1.51      www       475:        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;$lt{'un'}:</b></font></td>
1.30      www       476:        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14      albertel  477:       </tr>
                    478:       <tr>
1.51      www       479:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;$lt{'pw'}:</b></font></td>
1.66      www       480:        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14      albertel  481:       </tr>
                    482:       <tr>
1.51      www       483:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:</b></font></td>
1.30      www       484:        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14      albertel  485:       </tr>
                    486:       <tr>
1.51      www       487:        <td bgcolor="$mainbg">&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">$lt{'help'}</a></td>
1.28      www       488:        <td bgcolor="$mainbg" valign="bottom" align="center">
1.14      albertel  489:         <br />
1.51      www       490:         <input type="submit" value="$lt{'log'}" />
1.14      albertel  491:        </td>
                    492:       </tr>
                    493:      </table>
                    494:      <!-- End sub-table -->
                    495:     </form>
1.16      www       496: ENDLOGIN
                    497:     if ($fullgraph) {
1.62      raeburn   498:         my $helpdeskscript;
                    499:         my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript);
1.16      www       500: 	$r->print(<<ENDDOCUMENT);
1.14      albertel  501:    </td>
                    502: 
                    503:    <!-- Row 4 Column 2 -->
1.19      bowersj2  504:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45      www       505: 
                    506:    <!-- Row 4 Column 3 -->
                    507: <td bgcolor="$mainbg">$announcements</td>
1.14      albertel  508: 
                    509:    <!-- Row 4 Column 4 -->
1.19      bowersj2  510:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  511:   </tr>
                    512:   <tr>
                    513: 
                    514:    <!-- Row 5 Column 1 -->
1.21      www       515:    <td bgcolor="$sidebg" valign="middle" align="left">
1.14      albertel  516:      <br />
                    517:      <table border=0 cellspacing=0 cellpadding=0>
                    518:       <tr>
1.21      www       519:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       520:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  521:        </td>
1.21      www       522:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  523:         <small><tt>&nbsp;$domain</tt></small>
                    524:        </td>
                    525:       </tr>
                    526:       <tr>
1.21      www       527:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       528:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  529:        </td>
1.21      www       530:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  531:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    532:        </td>
                    533:       </tr>
                    534:       <tr>
1.21      www       535:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       536:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>
1.14      albertel  537:        </td>
1.21      www       538:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       539:         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
1.42      albertel  540:        </td>
                    541:       </tr>
                    542:       <tr>
                    543:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       544:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>
1.42      albertel  545:        </td>
                    546:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       547:         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
1.14      albertel  548:        </td>
                    549:       </tr>
                    550:      </table>
                    551:      <br />
1.60      raeburn   552:     $contactblock
1.14      albertel  553:    </td>
                    554: 
                    555:    <!-- Row 5 Column 2 -->
1.19      bowersj2  556:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  557: 
                    558:    <!-- Row 5 Column 3 -->
1.21      www       559:    <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20      www       560: $domainlogo
                    561: </td>
1.14      albertel  562: 
                    563:    <!-- Row 5 Column 4 -->
1.19      bowersj2  564:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  565:   </tr>
                    566:   <tr>
                    567: 
                    568:    <!-- Row 6 Column 1 -->
1.21      www       569:    <td bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  570: 
                    571:    <!-- Row 6 Column 2 -->
1.19      bowersj2  572:    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14      albertel  573: 
                    574:    <!-- Row 6 Column 3 -->
1.19      bowersj2  575:    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14      albertel  576: 
                    577:    <!-- Row 6 Column 4 -->
1.19      bowersj2  578:    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14      albertel  579:   </tr>
1.1       albertel  580:  </table>
1.25      bowersj2  581: 
1.59      albertel  582: <script type="text/javascript">
                    583: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  584: if ( document.client.uname ) { document.client.uname.focus(); }
                    585: </script>
1.62      raeburn   586: $helpdeskscript
1.14      albertel  587: 
1.1       albertel  588: ENDDOCUMENT
1.16      www       589: }
                    590:     $r->print('</body></html>');
1.1       albertel  591:     return OK;
1.60      raeburn   592: }
                    593: 
                    594: sub contactdisplay {
1.62      raeburn   595:     my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   596:     my $contactblock;
                    597:     my $showsysadm = 1;
                    598:     my $showservadm = 1;
1.62      raeburn   599:     my $showhelpdesk = 0;
                    600:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    601:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    602:         $showhelpdesk = 1;
                    603:     }
1.60      raeburn   604:     if ($showsysadm) {
                    605:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'sysadm'}.':</b><br />'.
                    606:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$sysadm.'</tt><br />';
                    607:     }
                    608:     if ($showservadm) {
                    609:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                    610:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
                    611:     }
                    612:     if ($showhelpdesk) {
1.62      raeburn   613:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />';
1.75    ! www       614:         my $thisurl = &escape('/adm/login');
1.62      raeburn   615:         $$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: }
                    634:  
1.1       albertel  635: 
                    636: 1;
                    637: __END__

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