Annotation of loncom/auth/lonlogin.pm, revision 1.94.2.1

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.94.2.1! albertel    4: # $Id: lonlogin.pm,v 1.94 2007/08/30 22:07:45 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: 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'});
1.94.2.1! albertel  161: # ---------------------------------------------------------- Are we overloaded?
        !           162:     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  163:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    164: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  165:     }
1.6       www       166: 
1.45      www       167: # ----------------------------------------------------------- Get announcements
                    168:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       169: # -------------------------------------------------------- Set login parameters
                    170: 
                    171:     my @hexstr=('0','1','2','3','4','5','6','7',
                    172:                 '8','9','a','b','c','d','e','f');
                    173:     my $lkey='';
                    174:     for (0..7) {
                    175:         $lkey.=$hexstr[rand(15)];
                    176:     }
                    177: 
                    178:     my $ukey='';
                    179:     for (0..7) {
                    180:         $ukey.=$hexstr[rand(15)];
                    181:     }
                    182: 
                    183:     my $lextkey=hex($lkey);
1.15      www       184:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    185: 
1.6       www       186:     my $uextkey=hex($ukey);
1.15      www       187:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    188: 
1.31      www       189: # -------------------------------------------------------- Store away log token
1.6       www       190:     my $logtoken=Apache::lonnet::reply(
1.7       www       191:        'tmpput:'.$ukey.$lkey.'&'.$firsturl,
1.6       www       192:        $lonhost);
1.31      www       193: 
                    194: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    195: 
                    196:     if ($logtoken eq 'con_lost') {
                    197:         my $spares='';
1.64      albertel  198: 	my $last;
                    199:         foreach my $hostid (sort
                    200: 			    {
1.88      albertel  201: 				&Apache::lonnet::hostname($a) cmp
                    202: 				    &Apache::lonnet::hostname($b);
1.64      albertel  203: 			    }
                    204: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   205:             next if ($hostid eq $lonhost);
1.88      albertel  206: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    207: 	    next if ($last eq $hostname);
1.58      matthew   208:             $spares.='<br /><font size="+1"><a href="http://'.
1.88      albertel  209:                 $hostname.
1.58      matthew   210:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  211:                 $hostname.'</a>'.
1.58      matthew   212:                 ' (preferred)</font>'.$/;
1.88      albertel  213: 	    $last=$hostname;
1.58      matthew   214:         }
                    215:         $spares.= '<br />';
1.88      albertel  216: 	my %all_hostnames = &Apache::lonnet::all_hostnames();
1.64      albertel  217:         foreach my $hostid (sort
                    218: 			    {
1.88      albertel  219: 				&Apache::lonnet::hostname($a) cmp
                    220: 				    &Apache::lonnet::hostname($b);
1.64      albertel  221: 			    }
1.88      albertel  222: 			    keys(%all_hostnames)) {
1.58      matthew   223:             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.88      albertel  224: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    225:             next if ($last eq $hostname);
1.58      matthew   226:             $spares.='<br /><a href="http://'.
1.88      albertel  227:                 $hostname.
1.58      matthew   228:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  229:                 $hostname.'</a>';
                    230: 	    $last=$hostname;
1.31      www       231:         }
                    232: 	$r->print(<<ENDTROUBLE);
                    233: <html>
                    234: <head><title>The LearningOnline Network with CAPA</title></head>
                    235: <body bgcolor="#FFFFFF">
                    236: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
                    237: <h3>This LON-CAPA server is temporarily not available for login</h3>
                    238: <p>Please attempt to login to one of the following servers:</p>$spares
                    239: </body>
                    240: </html>
                    241: ENDTROUBLE
                    242:         return OK;
                    243:     }
                    244: 
                    245: # ----------------------------------------------- Apparently we are in business
1.90      raeburn   246:     $servadm=~s/\,/\<br \/\>/g;
1.38      www       247: 
1.6       www       248: # --------------------------------------------------- Print login screen header
                    249:     $r->print(<<ENDHEADER);
1.1       albertel  250: <html>
                    251: <head>
1.37      www       252: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
1.2       www       253: <title>The LearningOnline Network with CAPA Login</title>
1.1       albertel  254: </head>
1.6       www       255: ENDHEADER
                    256: # ---------------------------------------------------- Serve out DES JavaScript
                    257:     {
                    258: 	my $jsh=Apache::File->new($include."/londes.js");
                    259:         $r->print(<$jsh>);
                    260:     }
1.21      www       261: 
                    262: # ----------------------------------------------------------- Front page design
1.35      www       263:     my $pgbg=
1.46      www       264:       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35      www       265:     my $font=
1.46      www       266:       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35      www       267:     my $link=
1.46      www       268:       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35      www       269:     my $vlink=
1.46      www       270:       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
                    271:     my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35      www       272:     my $mainbg=
1.46      www       273:       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35      www       274:     my $sidebg=
1.46      www       275:       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
                    276:     my $logo=&Apache::loncommon::designparm('login.logo',$domain);
                    277:     my $img=&Apache::loncommon::designparm('login.img',$domain);
1.90      raeburn   278:     my $domainlogo=&Apache::loncommon::domainlogo($domain);
                    279:     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',                                                      $domain);
                    280:     my $showcoursecat =
                    281:         &Apache::loncommon::designparm('login.coursecatalog',$domain);
                    282: 
1.21      www       283: 
1.51      www       284: # ----------------------------------------------------------------------- Texts
                    285: 
                    286: my %lt=&Apache::lonlocal::texthash(
                    287: 		  'un'  => 'Username',
                    288: 		  'pw'  => 'Password',
                    289: 		  'dom' => 'Domain',
                    290: 		  'perc' => 'percent',
1.52      www       291: 		  'load' => 'Load',
                    292:                   'userload' => 'User Load',
1.84      raeburn   293:                   'about'  => 'About LON-CAPA',
                    294:                   'access' => 'Accessibility Options',
                    295:                   'catalog' => 'Course Catalog',
1.52      www       296: 		  'auth' => 'userauthentication.gif',
1.51      www       297: 		  'log' => 'Log in',
1.84      raeburn   298: 		  'help' => 'Log-in Help',
1.51      www       299: 		  'serv' => 'Server',
1.90      raeburn   300:                   'servadm' => 'Server Administration',
1.83      raeburn   301:                   'helpdesk' => 'Contact Helpdesk',
                    302:                   'forgotpw' => 'Forgot password?');
1.66      www       303: # -------------------------------------------------- Change password field name
                    304:     my $now=time;
1.84      raeburn   305:     my $forgotpw = &forgotpwdisplay(%lt);
                    306:     my $loginhelp = &loginhelpdisplay(%lt);
1.6       www       307: # ---------------------------------------------------------- Serve rest of page
1.16      www       308:     $r->print(<<ENDSCRIPT);
1.6       www       309: 
1.21      www       310: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
1.27      albertel  311:   topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
1.6       www       312: 
1.14      albertel  313:  <script language="JavaScript">
                    314:     function send()
                    315:     {
1.6       www       316: 	this.document.server.elements.uname.value
                    317:        =this.document.client.elements.uname.value;
                    318: 
                    319:         this.document.server.elements.udom.value
                    320:        =this.document.client.elements.udom.value;
                    321: 
1.33      www       322:         this.document.server.elements.imagesuppress.value
1.36      www       323:        =this.document.client.elements.imagesuppress.checked;
1.33      www       324: 
                    325:         this.document.server.elements.embedsuppress.value
1.36      www       326:        =this.document.client.elements.embedsuppress.checked;
1.33      www       327: 
1.34      www       328:         this.document.server.elements.appletsuppress.value
1.36      www       329:        =this.document.client.elements.appletsuppress.checked;
1.34      www       330: 
1.33      www       331:         this.document.server.elements.fontenhance.value
1.36      www       332:        =this.document.client.elements.fontenhance.checked;
1.33      www       333: 
                    334:         this.document.server.elements.blackwhite.value
1.36      www       335:        =this.document.client.elements.blackwhite.checked;
1.33      www       336: 
1.35      www       337:         this.document.server.elements.remember.value
1.36      www       338:        =this.document.client.elements.remember.checked;
1.35      www       339: 
1.6       www       340:         uextkey=this.document.client.elements.uextkey.value;
                    341:         lextkey=this.document.client.elements.lextkey.value;
                    342:         initkeys();
                    343: 
1.65      www       344:         this.document.server.elements.upass0.value
1.66      www       345: 	    =crypted(this.document.client.elements.upass$now.value.substr(0,15));
1.65      www       346: 	this.document.server.elements.upass1.value
1.66      www       347: 	    =crypted(this.document.client.elements.upass$now.value.substr(15,15));
1.65      www       348: 	this.document.server.elements.upass2.value
1.66      www       349: 	    =crypted(this.document.client.elements.upass$now.value.substr(30,15));
                    350: 
                    351:         this.document.client.elements.uname.value='';
                    352:         this.document.client.elements.upass$now.value='';
1.6       www       353: 
                    354:         this.document.server.submit();
1.19      bowersj2  355: 	return false;
1.6       www       356:     }
1.14      albertel  357:  </script>
1.16      www       358: ENDSCRIPT
1.6       www       359: 
1.16      www       360:     if ($fullgraph) {
                    361: 	$r->print(
                    362: 		  '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
                    363:     }
1.6       www       364: 
1.16      www       365:     $r->print(<<ENDSERVERFORM);
1.14      albertel  366:   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33      www       367:    <input type="hidden" name="logtoken" value="$logtoken" />
                    368:    <input type="hidden" name="serverid" value="$lonhost" />
1.63      albertel  369:    <input type="hidden" name="interface" value="$env{'form.interface'}" />
1.33      www       370:    <input type="hidden" name="uname" value="" />
1.65      www       371:    <input type="hidden" name="upass0" value="" />
                    372:    <input type="hidden" name="upass1" value="" />
                    373:    <input type="hidden" name="upass2" value="" />
1.33      www       374:    <input type="hidden" name="udom" value="" />
                    375:    <input type="hidden" name="imagesuppress"  value="" />
1.34      www       376:    <input type="hidden" name="appletsuppress"  value="" />
1.33      www       377:    <input type="hidden" name="embedsuppress"  value="" />
                    378:    <input type="hidden" name="fontenhance"  value="" />
                    379:    <input type="hidden" name="blackwhite"  value="" />
1.35      www       380:    <input type="hidden" name="remember"  value="" />
1.63      albertel  381:    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
                    382:    <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14      albertel  383:   </form>
1.16      www       384: ENDSERVERFORM
1.90      raeburn   385:     my $coursecatalog;
1.92      raeburn   386:     if (($showcoursecat eq '') || ($showcoursecat)) {
1.90      raeburn   387:         $coursecatalog = &coursecatalog_link($lt{'catalog'});
                    388:     }
1.16      www       389:     if ($fullgraph) { $r->print(<<ENDTOP);
1.14      albertel  390:   <!-- The LON-CAPA Header -->
                    391:   <tr>
                    392: 
                    393:    <!-- Row 1 Columns 2-4 -->
1.29      www       394:    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
1.14      albertel  395:   </tr>
                    396: 
                    397:   <!-- The gray bar that starts the two table frames -->
                    398:   <tr>
                    399: 
                    400:    <!-- Row 2 Column 1 -->
1.21      www       401:    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  402: 
                    403:    <!-- Row 2 Column 2 -->
1.19      bowersj2  404:    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14      albertel  405: 
                    406:    <!-- Row 2 Column 3 -->
1.19      bowersj2  407:    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14      albertel  408: 
                    409:    <!-- Row 2 Column 4 -->
1.19      bowersj2  410:    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14      albertel  411:   </tr>
                    412:   <tr>
                    413:    
1.84      raeburn   414:    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
1.14      albertel  415:    <!-- Row 3 Column 1 -->
1.86      raeburn   416:    <td valign="top" height="60" align="left" bgcolor="$sidebg">
1.84      raeburn   417:     <table cellpadding="0" cellspacing="2" border="0">
                    418:      <tr>
                    419:       <td>&nbsp;</td>
                    420:       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
1.86      raeburn   421:      </tr>
                    422:      <tr>
                    423:       <td>&nbsp;</td>
                    424:       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
1.90      raeburn   425:      </tr>$coursecatalog
1.86      raeburn   426:      <tr>
1.84      raeburn   427:       <td colspan="2">&nbsp;</td>
1.86      raeburn   428:      </tr>
                    429:     </table>
                    430:    </td>
1.14      albertel  431:    <!-- The shaded space between the two main columns -->
                    432:    <!-- Row 3 Column 2 -->
1.19      bowersj2  433:    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  434: 
                    435:    <!-- The right main column holding the large LON-CAPA logo-->
                    436:    <!-- Rows 3-4 Column 3 -->
1.45      www       437:    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
1.14      albertel  438:     <center>
1.21      www       439:      <img src="$logo" alt="" />
1.14      albertel  440:     </center>
                    441:    </td>
                    442: 
                    443:    <!-- Row 3 Column 4 -->
1.19      bowersj2  444:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  445:   </tr>
                    446:   <tr>
                    447: 
                    448:    <!-- The entry form -->
                    449:    <!-- Row 4 Column 1 -->
1.21      www       450:    <td align="center" valign="middle" bgcolor="$sidebg">
1.16      www       451: ENDTOP
1.32      www       452: } else {
1.45      www       453:     $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
1.33      www       454: }
                    455:     $r->print('<form name="client" onsubmit="return(send())">');
                    456:     unless ($fullgraph) {
                    457:         $r->print(<<ENDACCESSOPTIONS);
1.35      www       458: <h3>Select Accessibility Options</h3>
1.67      albertel  459: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
                    460: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
                    461: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
                    462: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
                    463: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
1.35      www       464: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
1.33      www       465: ENDACCESSOPTIONS
                    466: } else {
                    467:     $r->print(<<ENDNOOPT);
                    468: <input type="hidden" name="imagesuppress"  value="" />
                    469: <input type="hidden" name="embedsuppress"  value="" />
1.34      www       470: <input type="hidden" name="appletsuppress"  value="" />
1.33      www       471: <input type="hidden" name="fontenhance"  value="" />
                    472: <input type="hidden" name="blackwhite"  value="" />
1.35      www       473: <input type="hidden" name="remember"  value="" />
1.33      www       474: ENDNOOPT
1.16      www       475: }
                    476:     $r->print(<<ENDLOGIN);
1.14      albertel  477:      <input type="hidden" name="lextkey" value="$lextkey">
                    478:      <input type="hidden" name="uextkey" value="$uextkey">
                    479: 
                    480:      <!-- Start the sub-table for text and input alignment -->
                    481:      <table border=0 cellspacing=0 cellpadding=0>
1.52      www       482:       <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
1.14      albertel  483:       <tr>
1.93      www       484:        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>
1.30      www       485:        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14      albertel  486:       </tr>
                    487:       <tr>
1.93      www       488:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>
1.66      www       489:        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14      albertel  490:       </tr>
                    491:       <tr>
1.93      www       492:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>
1.30      www       493:        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14      albertel  494:       </tr>
                    495:       <tr>
1.84      raeburn   496:        <td bgcolor="$mainbg">&nbsp;</td>
1.28      www       497:        <td bgcolor="$mainbg" valign="bottom" align="center">
1.14      albertel  498:         <br />
1.51      www       499:         <input type="submit" value="$lt{'log'}" />
1.14      albertel  500:        </td>
                    501:       </tr>
1.83      raeburn   502:       <tr>
                    503:        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
1.84      raeburn   504:         $loginhelp
1.83      raeburn   505:         $forgotpw
                    506:        </td>
                    507:       </tr>
1.14      albertel  508:      </table>
                    509:      <!-- End sub-table -->
                    510:     </form>
1.16      www       511: ENDLOGIN
                    512:     if ($fullgraph) {
1.62      raeburn   513:         my $helpdeskscript;
1.90      raeburn   514:         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                    515:                                   $version,$authdomain,\$helpdeskscript);
1.16      www       516: 	$r->print(<<ENDDOCUMENT);
1.14      albertel  517:    </td>
                    518: 
                    519:    <!-- Row 4 Column 2 -->
1.19      bowersj2  520:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45      www       521: 
                    522:    <!-- Row 4 Column 3 -->
                    523: <td bgcolor="$mainbg">$announcements</td>
1.14      albertel  524: 
                    525:    <!-- Row 4 Column 4 -->
1.19      bowersj2  526:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  527:   </tr>
                    528:   <tr>
                    529: 
                    530:    <!-- Row 5 Column 1 -->
1.21      www       531:    <td bgcolor="$sidebg" valign="middle" align="left">
1.14      albertel  532:      <br />
                    533:      <table border=0 cellspacing=0 cellpadding=0>
                    534:       <tr>
1.21      www       535:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       536:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  537:        </td>
1.21      www       538:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  539:         <small><tt>&nbsp;$domain</tt></small>
                    540:        </td>
                    541:       </tr>
                    542:       <tr>
1.21      www       543:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       544:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  545:        </td>
1.21      www       546:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  547:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    548:        </td>
                    549:       </tr>
                    550:       <tr>
1.21      www       551:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       552:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>
1.14      albertel  553:        </td>
1.21      www       554:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       555:         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
1.42      albertel  556:        </td>
                    557:       </tr>
                    558:       <tr>
                    559:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       560:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>
1.42      albertel  561:        </td>
                    562:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       563:         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
1.14      albertel  564:        </td>
                    565:       </tr>
                    566:      </table>
                    567:      <br />
1.60      raeburn   568:     $contactblock
1.14      albertel  569:    </td>
                    570: 
                    571:    <!-- Row 5 Column 2 -->
1.19      bowersj2  572:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  573: 
                    574:    <!-- Row 5 Column 3 -->
1.21      www       575:    <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20      www       576: $domainlogo
                    577: </td>
1.14      albertel  578: 
                    579:    <!-- Row 5 Column 4 -->
1.19      bowersj2  580:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  581:   </tr>
                    582:   <tr>
                    583: 
                    584:    <!-- Row 6 Column 1 -->
1.21      www       585:    <td bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  586: 
                    587:    <!-- Row 6 Column 2 -->
1.19      bowersj2  588:    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14      albertel  589: 
                    590:    <!-- Row 6 Column 3 -->
1.19      bowersj2  591:    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14      albertel  592: 
                    593:    <!-- Row 6 Column 4 -->
1.19      bowersj2  594:    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14      albertel  595:   </tr>
1.1       albertel  596:  </table>
1.25      bowersj2  597: 
1.59      albertel  598: <script type="text/javascript">
                    599: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  600: if ( document.client.uname ) { document.client.uname.focus(); }
                    601: </script>
1.62      raeburn   602: $helpdeskscript
1.14      albertel  603: 
1.1       albertel  604: ENDDOCUMENT
1.16      www       605: }
                    606:     $r->print('</body></html>');
1.1       albertel  607:     return OK;
1.60      raeburn   608: }
                    609: 
                    610: sub contactdisplay {
1.90      raeburn   611:     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   612:     my $contactblock;
1.62      raeburn   613:     my $showhelpdesk = 0;
                    614:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    615:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    616:         $showhelpdesk = 1;
                    617:     }
1.90      raeburn   618:     if ($servadm && $showadminmail) {
                    619:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                    620:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
                    621:     }
1.60      raeburn   622:     if ($showhelpdesk) {
1.84      raeburn   623:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
1.75      www       624:         my $thisurl = &escape('/adm/login');
1.62      raeburn   625:         $$helpdeskscript = <<"ENDSCRIPT";
                    626: <script type="text/javascript">
                    627: function helpdesk() {
                    628:     var codedom = document.client.udom.value;
                    629:     if (codedom == '') {
                    630:         codedom = "$authdomain";
                    631:     }
                    632:     var querystr = "origurl=$thisurl&codedom="+codedom;
                    633:     document.location.href = "/adm/helpdesk?"+querystr;
                    634:     return;
                    635: }
                    636: </script>
                    637: ENDSCRIPT
1.60      raeburn   638:     }
                    639:     $contactblock .= <<"ENDBLOCK";
                    640:      &nbsp;&nbsp;&nbsp;$version
                    641: ENDBLOCK
                    642:     return $contactblock;
                    643: }
1.83      raeburn   644: 
                    645: sub forgotpwdisplay {
1.84      raeburn   646:     my (%lt) = @_;
1.83      raeburn   647:     my $prompt_for_resetpw = 1; 
                    648:     if ($prompt_for_resetpw) {
1.84      raeburn   649:         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
                    650:     }
                    651:     return;
                    652: }
                    653: 
                    654: sub loginhelpdisplay {
                    655:     my (%lt) = @_;
                    656:     my $login_help = 1;
                    657:     if ($login_help) {
                    658:         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
1.83      raeburn   659:     }
                    660:     return;
                    661: }
1.1       albertel  662: 
1.90      raeburn   663: sub coursecatalog_link {
                    664:     my ($linkname) = @_;
                    665:     return <<"END";
                    666:      <tr>
                    667:       <td>&nbsp;</td>
                    668:       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
                    669:      </tr>
                    670: END
                    671: }
                    672: 
1.1       albertel  673: 1;
                    674: __END__

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