Annotation of loncom/auth/lonlogin.pm, revision 1.94

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.94    ! albertel    4: # $Id: lonlogin.pm,v 1.93 2007/04/17 15:44:58 www 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: sub handler {
                     44:     my $r = shift;
1.71      albertel   45: 
                     46:     &Apache::loncommon::get_unprocessed_cgi
1.79      albertel   47: 	(join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
                     48: 	      $ENV{'REDIRECT_QUERY_STRING'}),
1.71      albertel   49: 	 ['interface','username','domain','firsturl','localpath','localres',
                     50: 	  'token']);
                     51: 
                     52: # -- check if they are a migrating user
                     53:     if (defined($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) {
1.85      albertel   76: 	my $handle=&LONCAPA::clean_handle($lonid->value);
1.55      www        77:         my $lonidsdir=$r->dir_config('lonIDsDir');
1.70      www        78: 	if (-e "$lonidsdir/$handle.id") {
                     79: # Is there an existing token file?
                     80: 	    if ($handle=~/^publicuser\_/) {
                     81: # For "public user" - remove it, we apparently really want to login
                     82: 		unlink("$lonidsdir/$handle.id");
                     83: 	    } elsif ($handle ne '') {
1.55      www        84: # Indeed, a valid token is found
1.74      albertel   85: 		my $start_page = 
                     86: 		    &Apache::loncommon::start_page('Already logged in');
                     87: 		my $end_page = 
                     88: 		    &Apache::loncommon::end_page();
1.70      www        89: 		$r->print(<<ENDFAILED);
1.74      albertel   90: $start_page
1.55      www        91: <h1>You are already logged in</h1>
                     92: <p>Please either <a href="/adm/roles">continue the current session</a> or
                     93: <a href="/adm/logout">logout</a>.</p>
                     94: <p>
                     95: <a href="/adm/loginproblems.html">Problems?</a></p>
1.74      albertel   96: $end_page
1.55      www        97: ENDFAILED
1.70      www        98:                 return OK;
                     99:  	    }  
1.55      www       100: 	}
                    101:     }
                    102: 
                    103: # ---------------------------------------------------- No valid token, continue
1.16      www       104: 
1.70      www       105:  # ---------------------------- Not possible to really login to domain "public"
                    106:     if ($env{'form.domain'} eq 'public') {
                    107: 	$env{'form.domain'}='';
                    108: 	$env{'form.username'}='';
                    109:     }
1.32      www       110: # ----------------------------------------------------------- Process Interface
1.63      albertel  111:     $env{'form.interface'}=~s/\W//g;
1.16      www       112: 
1.32      www       113:     my $textbrowsers=$r->dir_config('lonTextBrowsers');
                    114:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
                    115:     
                    116:     foreach (split(/\:/,$textbrowsers)) {
                    117: 	if ($httpbrowser=~/$_/i) {
1.63      albertel  118: 	    $env{'form.interface'}='textual';
1.32      www       119:         }
                    120:     }
                    121: 
1.63      albertel  122:     my $fullgraph=($env{'form.interface'} ne 'textual');
1.94    ! albertel  123: 
        !           124:     my $iconpath= 
        !           125: 	&Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
        !           126: 
1.87      raeburn   127:     my $domain = &Apache::lonnet::default_login_domain();
1.63      albertel  128:     if (($env{'form.domain'}) && 
1.89      albertel  129: 	(&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63      albertel  130: 	$domain=$env{'form.domain'};
1.46      www       131:     }
1.1       albertel  132:     my $role    = $r->dir_config('lonRole');
                    133:     my $loadlim = $r->dir_config('lonLoadLim');
1.90      raeburn   134:     my $servadm = $r->dir_config('lonAdmEMail');
1.1       albertel  135:     my $lonhost = $r->dir_config('lonHostID');
                    136:     my $tabdir  = $r->dir_config('lonTabDir');
1.6       www       137:     my $include = $r->dir_config('lonIncludes');
1.37      www       138:     my $expire  = $r->dir_config('lonExpire');
1.44      www       139:     my $version = $r->dir_config('lonVersion');
1.88      albertel  140:     my $host_name = &Apache::lonnet::hostname($lonhost);
1.1       albertel  141: 
1.30      www       142: # --------------------------------------------- Default values for login fields
                    143: 
1.63      albertel  144:     my $authusername=($env{'form.username'}?$env{'form.username'}:'');
                    145:     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30      www       146: 
                    147: # ---------------------------------------------------------- Determine own load
1.1       albertel  148:     my $loadavg;
1.41      albertel  149:     {
                    150: 	my $loadfile=Apache::File->new('/proc/loadavg');
                    151: 	$loadavg=<$loadfile>;
                    152:     }
1.1       albertel  153:     $loadavg =~ s/\s.*//g;
1.57      matthew   154:     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41      albertel  155:     my $userloadpercent=&Apache::lonnet::userload();
1.1       albertel  156: 
1.30      www       157: # ------------------------------------------------------- Do the load balancing
1.80      albertel  158:     my $otherserver= &Apache::lonnet::absolute_url($host_name);
1.31      www       159:     my $firsturl=
1.63      albertel  160:     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.1       albertel  161: # ---------------------------------------- Are we access server and overloaded?
1.41      albertel  162:     if (($role eq 'access') &&
                    163: 	(($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  164:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    165: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  166:     }
1.6       www       167: 
1.45      www       168: # ----------------------------------------------------------- Get announcements
                    169:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       170: # -------------------------------------------------------- Set login parameters
                    171: 
                    172:     my @hexstr=('0','1','2','3','4','5','6','7',
                    173:                 '8','9','a','b','c','d','e','f');
                    174:     my $lkey='';
                    175:     for (0..7) {
                    176:         $lkey.=$hexstr[rand(15)];
                    177:     }
                    178: 
                    179:     my $ukey='';
                    180:     for (0..7) {
                    181:         $ukey.=$hexstr[rand(15)];
                    182:     }
                    183: 
                    184:     my $lextkey=hex($lkey);
1.15      www       185:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    186: 
1.6       www       187:     my $uextkey=hex($ukey);
1.15      www       188:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    189: 
1.31      www       190: # -------------------------------------------------------- Store away log token
1.6       www       191:     my $logtoken=Apache::lonnet::reply(
1.7       www       192:        'tmpput:'.$ukey.$lkey.'&'.$firsturl,
1.6       www       193:        $lonhost);
1.31      www       194: 
                    195: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    196: 
                    197:     if ($logtoken eq 'con_lost') {
                    198:         my $spares='';
1.64      albertel  199: 	my $last;
                    200:         foreach my $hostid (sort
                    201: 			    {
1.88      albertel  202: 				&Apache::lonnet::hostname($a) cmp
                    203: 				    &Apache::lonnet::hostname($b);
1.64      albertel  204: 			    }
                    205: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   206:             next if ($hostid eq $lonhost);
1.88      albertel  207: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    208: 	    next if ($last eq $hostname);
1.58      matthew   209:             $spares.='<br /><font size="+1"><a href="http://'.
1.88      albertel  210:                 $hostname.
1.58      matthew   211:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  212:                 $hostname.'</a>'.
1.58      matthew   213:                 ' (preferred)</font>'.$/;
1.88      albertel  214: 	    $last=$hostname;
1.58      matthew   215:         }
                    216:         $spares.= '<br />';
1.88      albertel  217: 	my %all_hostnames = &Apache::lonnet::all_hostnames();
1.64      albertel  218:         foreach my $hostid (sort
                    219: 			    {
1.88      albertel  220: 				&Apache::lonnet::hostname($a) cmp
                    221: 				    &Apache::lonnet::hostname($b);
1.64      albertel  222: 			    }
1.88      albertel  223: 			    keys(%all_hostnames)) {
1.58      matthew   224:             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.88      albertel  225: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    226:             next if ($last eq $hostname);
1.58      matthew   227:             $spares.='<br /><a href="http://'.
1.88      albertel  228:                 $hostname.
1.58      matthew   229:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  230:                 $hostname.'</a>';
                    231: 	    $last=$hostname;
1.31      www       232:         }
                    233: 	$r->print(<<ENDTROUBLE);
                    234: <html>
                    235: <head><title>The LearningOnline Network with CAPA</title></head>
                    236: <body bgcolor="#FFFFFF">
                    237: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
                    238: <h3>This LON-CAPA server is temporarily not available for login</h3>
                    239: <p>Please attempt to login to one of the following servers:</p>$spares
                    240: </body>
                    241: </html>
                    242: ENDTROUBLE
                    243:         return OK;
                    244:     }
                    245: 
                    246: # ----------------------------------------------- Apparently we are in business
1.90      raeburn   247:     $servadm=~s/\,/\<br \/\>/g;
1.38      www       248: 
1.6       www       249: # --------------------------------------------------- Print login screen header
                    250:     $r->print(<<ENDHEADER);
1.1       albertel  251: <html>
                    252: <head>
1.37      www       253: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
1.2       www       254: <title>The LearningOnline Network with CAPA Login</title>
1.1       albertel  255: </head>
1.6       www       256: ENDHEADER
                    257: # ---------------------------------------------------- Serve out DES JavaScript
                    258:     {
                    259: 	my $jsh=Apache::File->new($include."/londes.js");
                    260:         $r->print(<$jsh>);
                    261:     }
1.21      www       262: 
                    263: # ----------------------------------------------------------- Front page design
1.35      www       264:     my $pgbg=
1.46      www       265:       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35      www       266:     my $font=
1.46      www       267:       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35      www       268:     my $link=
1.46      www       269:       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35      www       270:     my $vlink=
1.46      www       271:       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
                    272:     my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35      www       273:     my $mainbg=
1.46      www       274:       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35      www       275:     my $sidebg=
1.46      www       276:       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
                    277:     my $logo=&Apache::loncommon::designparm('login.logo',$domain);
                    278:     my $img=&Apache::loncommon::designparm('login.img',$domain);
1.90      raeburn   279:     my $domainlogo=&Apache::loncommon::domainlogo($domain);
                    280:     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',                                                      $domain);
                    281:     my $showcoursecat =
                    282:         &Apache::loncommon::designparm('login.coursecatalog',$domain);
                    283: 
1.21      www       284: 
1.51      www       285: # ----------------------------------------------------------------------- Texts
                    286: 
                    287: my %lt=&Apache::lonlocal::texthash(
                    288: 		  'un'  => 'Username',
                    289: 		  'pw'  => 'Password',
                    290: 		  'dom' => 'Domain',
                    291: 		  'perc' => 'percent',
1.52      www       292: 		  'load' => 'Load',
                    293:                   'userload' => 'User Load',
1.84      raeburn   294:                   'about'  => 'About LON-CAPA',
                    295:                   'access' => 'Accessibility Options',
                    296:                   'catalog' => 'Course Catalog',
1.52      www       297: 		  'auth' => 'userauthentication.gif',
1.51      www       298: 		  'log' => 'Log in',
1.84      raeburn   299: 		  'help' => 'Log-in Help',
1.51      www       300: 		  'serv' => 'Server',
1.90      raeburn   301:                   'servadm' => 'Server Administration',
1.83      raeburn   302:                   'helpdesk' => 'Contact Helpdesk',
                    303:                   'forgotpw' => 'Forgot password?');
1.66      www       304: # -------------------------------------------------- Change password field name
                    305:     my $now=time;
1.84      raeburn   306:     my $forgotpw = &forgotpwdisplay(%lt);
                    307:     my $loginhelp = &loginhelpdisplay(%lt);
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
1.90      raeburn   386:     my $coursecatalog;
1.92      raeburn   387:     if (($showcoursecat eq '') || ($showcoursecat)) {
1.90      raeburn   388:         $coursecatalog = &coursecatalog_link($lt{'catalog'});
                    389:     }
1.16      www       390:     if ($fullgraph) { $r->print(<<ENDTOP);
1.14      albertel  391:   <!-- The LON-CAPA Header -->
                    392:   <tr>
                    393: 
                    394:    <!-- Row 1 Columns 2-4 -->
1.29      www       395:    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
1.14      albertel  396:   </tr>
                    397: 
                    398:   <!-- The gray bar that starts the two table frames -->
                    399:   <tr>
                    400: 
                    401:    <!-- Row 2 Column 1 -->
1.21      www       402:    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  403: 
                    404:    <!-- Row 2 Column 2 -->
1.19      bowersj2  405:    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14      albertel  406: 
                    407:    <!-- Row 2 Column 3 -->
1.19      bowersj2  408:    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14      albertel  409: 
                    410:    <!-- Row 2 Column 4 -->
1.19      bowersj2  411:    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14      albertel  412:   </tr>
                    413:   <tr>
                    414:    
1.84      raeburn   415:    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
1.14      albertel  416:    <!-- Row 3 Column 1 -->
1.86      raeburn   417:    <td valign="top" height="60" align="left" bgcolor="$sidebg">
1.84      raeburn   418:     <table cellpadding="0" cellspacing="2" border="0">
                    419:      <tr>
                    420:       <td>&nbsp;</td>
                    421:       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
1.86      raeburn   422:      </tr>
                    423:      <tr>
                    424:       <td>&nbsp;</td>
                    425:       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
1.90      raeburn   426:      </tr>$coursecatalog
1.86      raeburn   427:      <tr>
1.84      raeburn   428:       <td colspan="2">&nbsp;</td>
1.86      raeburn   429:      </tr>
                    430:     </table>
                    431:    </td>
1.14      albertel  432:    <!-- The shaded space between the two main columns -->
                    433:    <!-- Row 3 Column 2 -->
1.19      bowersj2  434:    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  435: 
                    436:    <!-- The right main column holding the large LON-CAPA logo-->
                    437:    <!-- Rows 3-4 Column 3 -->
1.45      www       438:    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
1.14      albertel  439:     <center>
1.21      www       440:      <img src="$logo" alt="" />
1.14      albertel  441:     </center>
                    442:    </td>
                    443: 
                    444:    <!-- Row 3 Column 4 -->
1.19      bowersj2  445:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  446:   </tr>
                    447:   <tr>
                    448: 
                    449:    <!-- The entry form -->
                    450:    <!-- Row 4 Column 1 -->
1.21      www       451:    <td align="center" valign="middle" bgcolor="$sidebg">
1.16      www       452: ENDTOP
1.32      www       453: } else {
1.45      www       454:     $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
1.33      www       455: }
                    456:     $r->print('<form name="client" onsubmit="return(send())">');
                    457:     unless ($fullgraph) {
                    458:         $r->print(<<ENDACCESSOPTIONS);
1.35      www       459: <h3>Select Accessibility Options</h3>
1.67      albertel  460: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
                    461: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
                    462: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
                    463: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
                    464: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
1.35      www       465: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
1.33      www       466: ENDACCESSOPTIONS
                    467: } else {
                    468:     $r->print(<<ENDNOOPT);
                    469: <input type="hidden" name="imagesuppress"  value="" />
                    470: <input type="hidden" name="embedsuppress"  value="" />
1.34      www       471: <input type="hidden" name="appletsuppress"  value="" />
1.33      www       472: <input type="hidden" name="fontenhance"  value="" />
                    473: <input type="hidden" name="blackwhite"  value="" />
1.35      www       474: <input type="hidden" name="remember"  value="" />
1.33      www       475: ENDNOOPT
1.16      www       476: }
                    477:     $r->print(<<ENDLOGIN);
1.14      albertel  478:      <input type="hidden" name="lextkey" value="$lextkey">
                    479:      <input type="hidden" name="uextkey" value="$uextkey">
                    480: 
                    481:      <!-- Start the sub-table for text and input alignment -->
                    482:      <table border=0 cellspacing=0 cellpadding=0>
1.52      www       483:       <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
1.14      albertel  484:       <tr>
1.93      www       485:        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>
1.30      www       486:        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14      albertel  487:       </tr>
                    488:       <tr>
1.93      www       489:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>
1.66      www       490:        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14      albertel  491:       </tr>
                    492:       <tr>
1.93      www       493:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>
1.30      www       494:        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14      albertel  495:       </tr>
                    496:       <tr>
1.84      raeburn   497:        <td bgcolor="$mainbg">&nbsp;</td>
1.28      www       498:        <td bgcolor="$mainbg" valign="bottom" align="center">
1.14      albertel  499:         <br />
1.51      www       500:         <input type="submit" value="$lt{'log'}" />
1.14      albertel  501:        </td>
                    502:       </tr>
1.83      raeburn   503:       <tr>
                    504:        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
1.84      raeburn   505:         $loginhelp
1.83      raeburn   506:         $forgotpw
                    507:        </td>
                    508:       </tr>
1.14      albertel  509:      </table>
                    510:      <!-- End sub-table -->
                    511:     </form>
1.16      www       512: ENDLOGIN
                    513:     if ($fullgraph) {
1.62      raeburn   514:         my $helpdeskscript;
1.90      raeburn   515:         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                    516:                                   $version,$authdomain,\$helpdeskscript);
1.16      www       517: 	$r->print(<<ENDDOCUMENT);
1.14      albertel  518:    </td>
                    519: 
                    520:    <!-- Row 4 Column 2 -->
1.19      bowersj2  521:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45      www       522: 
                    523:    <!-- Row 4 Column 3 -->
                    524: <td bgcolor="$mainbg">$announcements</td>
1.14      albertel  525: 
                    526:    <!-- Row 4 Column 4 -->
1.19      bowersj2  527:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  528:   </tr>
                    529:   <tr>
                    530: 
                    531:    <!-- Row 5 Column 1 -->
1.21      www       532:    <td bgcolor="$sidebg" valign="middle" align="left">
1.14      albertel  533:      <br />
                    534:      <table border=0 cellspacing=0 cellpadding=0>
                    535:       <tr>
1.21      www       536:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       537:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  538:        </td>
1.21      www       539:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  540:         <small><tt>&nbsp;$domain</tt></small>
                    541:        </td>
                    542:       </tr>
                    543:       <tr>
1.21      www       544:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       545:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  546:        </td>
1.21      www       547:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  548:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    549:        </td>
                    550:       </tr>
                    551:       <tr>
1.21      www       552:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       553:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>
1.14      albertel  554:        </td>
1.21      www       555:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       556:         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
1.42      albertel  557:        </td>
                    558:       </tr>
                    559:       <tr>
                    560:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       561:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>
1.42      albertel  562:        </td>
                    563:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       564:         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
1.14      albertel  565:        </td>
                    566:       </tr>
                    567:      </table>
                    568:      <br />
1.60      raeburn   569:     $contactblock
1.14      albertel  570:    </td>
                    571: 
                    572:    <!-- Row 5 Column 2 -->
1.19      bowersj2  573:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  574: 
                    575:    <!-- Row 5 Column 3 -->
1.21      www       576:    <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20      www       577: $domainlogo
                    578: </td>
1.14      albertel  579: 
                    580:    <!-- Row 5 Column 4 -->
1.19      bowersj2  581:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  582:   </tr>
                    583:   <tr>
                    584: 
                    585:    <!-- Row 6 Column 1 -->
1.21      www       586:    <td bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  587: 
                    588:    <!-- Row 6 Column 2 -->
1.19      bowersj2  589:    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14      albertel  590: 
                    591:    <!-- Row 6 Column 3 -->
1.19      bowersj2  592:    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14      albertel  593: 
                    594:    <!-- Row 6 Column 4 -->
1.19      bowersj2  595:    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14      albertel  596:   </tr>
1.1       albertel  597:  </table>
1.25      bowersj2  598: 
1.59      albertel  599: <script type="text/javascript">
                    600: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  601: if ( document.client.uname ) { document.client.uname.focus(); }
                    602: </script>
1.62      raeburn   603: $helpdeskscript
1.14      albertel  604: 
1.1       albertel  605: ENDDOCUMENT
1.16      www       606: }
                    607:     $r->print('</body></html>');
1.1       albertel  608:     return OK;
1.60      raeburn   609: }
                    610: 
                    611: sub contactdisplay {
1.90      raeburn   612:     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   613:     my $contactblock;
1.62      raeburn   614:     my $showhelpdesk = 0;
                    615:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    616:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    617:         $showhelpdesk = 1;
                    618:     }
1.90      raeburn   619:     if ($servadm && $showadminmail) {
                    620:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                    621:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
                    622:     }
1.60      raeburn   623:     if ($showhelpdesk) {
1.84      raeburn   624:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
1.75      www       625:         my $thisurl = &escape('/adm/login');
1.62      raeburn   626:         $$helpdeskscript = <<"ENDSCRIPT";
                    627: <script type="text/javascript">
                    628: function helpdesk() {
                    629:     var codedom = document.client.udom.value;
                    630:     if (codedom == '') {
                    631:         codedom = "$authdomain";
                    632:     }
                    633:     var querystr = "origurl=$thisurl&codedom="+codedom;
                    634:     document.location.href = "/adm/helpdesk?"+querystr;
                    635:     return;
                    636: }
                    637: </script>
                    638: ENDSCRIPT
1.60      raeburn   639:     }
                    640:     $contactblock .= <<"ENDBLOCK";
                    641:      &nbsp;&nbsp;&nbsp;$version
                    642: ENDBLOCK
                    643:     return $contactblock;
                    644: }
1.83      raeburn   645: 
                    646: sub forgotpwdisplay {
1.84      raeburn   647:     my (%lt) = @_;
1.83      raeburn   648:     my $prompt_for_resetpw = 1; 
                    649:     if ($prompt_for_resetpw) {
1.84      raeburn   650:         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
                    651:     }
                    652:     return;
                    653: }
                    654: 
                    655: sub loginhelpdisplay {
                    656:     my (%lt) = @_;
                    657:     my $login_help = 1;
                    658:     if ($login_help) {
                    659:         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
1.83      raeburn   660:     }
                    661:     return;
                    662: }
1.1       albertel  663: 
1.90      raeburn   664: sub coursecatalog_link {
                    665:     my ($linkname) = @_;
                    666:     return <<"END";
                    667:      <tr>
                    668:       <td>&nbsp;</td>
                    669:       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
                    670:      </tr>
                    671: END
                    672: }
                    673: 
1.1       albertel  674: 1;
                    675: __END__

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