Annotation of loncom/auth/lonlogin.pm, revision 1.106.4.4

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.106.4.4! raeburn     4: # $Id: lonlogin.pm,v 1.106.4.3 2009/08/12 19:52:15 raeburn Exp $
1.11      www         5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.14      albertel   28: 
1.1       albertel   29: package Apache::lonlogin;
                     30: 
                     31: use strict;
                     32: use Apache::Constants qw(:common);
                     33: use Apache::File ();
1.63      albertel   34: use Apache::lonnet;
1.12      albertel   35: use Apache::loncommon();
1.49      www        36: use Apache::lonauth();
1.50      www        37: use Apache::lonlocal;
1.71      albertel   38: use Apache::migrateuser();
1.75      www        39: use lib '/home/httpd/lib/perl/';
                     40: use LONCAPA;
                     41:  
1.1       albertel   42: sub handler {
                     43:     my $r = shift;
1.71      albertel   44: 
                     45:     &Apache::loncommon::get_unprocessed_cgi
1.79      albertel   46: 	(join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
                     47: 	      $ENV{'REDIRECT_QUERY_STRING'}),
1.71      albertel   48: 	 ['interface','username','domain','firsturl','localpath','localres',
1.106.4.3  raeburn    49: 	  'token','role','symb']);
1.102     raeburn    50:     if (!defined($env{'form.firsturl'})) {
                     51:         &Apache::lonacc::get_posted_cgi($r,['firsturl']);
                     52:     }
1.71      albertel   53: 
                     54: # -- check if they are a migrating user
                     55:     if (defined($env{'form.token'})) {
                     56: 	return &Apache::migrateuser::handler($r);
                     57:     }
                     58: 
1.53      www        59:     &Apache::loncommon::no_cache($r);
                     60:     &Apache::lonlocal::get_language_handle($r);
1.54      www        61:     &Apache::loncommon::content_type($r,'text/html');
1.1       albertel   62:     $r->send_http_header;
                     63:     return OK if $r->header_only;
                     64: 
1.49      www        65: 
                     66: # Are we re-routing?
                     67:     if (-e '/home/httpd/html/lon-status/reroute.txt') {
                     68: 	&Apache::lonauth::reroute($r);
                     69: 	return OK;
                     70:     }
1.55      www        71: 
1.71      albertel   72: 
1.55      www        73: # -------------------------------- Prevent users from attempting to login twice
1.95      albertel   74:     my $handle = &Apache::lonnet::check_for_valid_session($r);
                     75:     if ($handle=~/^publicuser\_/) {
1.70      www        76: # For "public user" - remove it, we apparently really want to login
1.95      albertel   77: 	unlink($r->dir_config('lonIDsDir')."/$handle.id");
                     78:     } elsif ($handle ne '') {
1.55      www        79: # Indeed, a valid token is found
1.95      albertel   80: 	my $start_page = 
                     81: 	    &Apache::loncommon::start_page('Already logged in');
                     82: 	my $end_page = 
                     83: 	    &Apache::loncommon::end_page();
1.106.4.4! raeburn    84:         my $dest = '/adm/roles';
        !            85:         if ($env{'form.firsturl'} ne '') {
        !            86:             $dest = $env{'form.firsturl'};
        !            87:         }
1.100     bisitz     88: 	$r->print(
                     89:                   $start_page
1.103     bisitz     90:                  .'<h1>'.&mt('You are already logged in!').'</h1>'
1.106.4.1  raeburn    91:                  .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
1.106.4.4! raeburn    92:                   '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
1.100     bisitz     93:                  .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
                     94:                  .$end_page
                     95:                  );
1.95      albertel   96:         return OK;
1.55      www        97:     }
                     98: 
                     99: # ---------------------------------------------------- No valid token, continue
1.16      www       100: 
1.70      www       101:  # ---------------------------- Not possible to really login to domain "public"
                    102:     if ($env{'form.domain'} eq 'public') {
                    103: 	$env{'form.domain'}='';
                    104: 	$env{'form.username'}='';
                    105:     }
1.32      www       106: # ----------------------------------------------------------- Process Interface
1.63      albertel  107:     $env{'form.interface'}=~s/\W//g;
1.16      www       108: 
1.32      www       109:     my $textbrowsers=$r->dir_config('lonTextBrowsers');
                    110:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
                    111:     
                    112:     foreach (split(/\:/,$textbrowsers)) {
                    113: 	if ($httpbrowser=~/$_/i) {
1.63      albertel  114: 	    $env{'form.interface'}='textual';
1.32      www       115:         }
                    116:     }
                    117: 
1.63      albertel  118:     my $fullgraph=($env{'form.interface'} ne 'textual');
1.94      albertel  119: 
                    120:     my $iconpath= 
                    121: 	&Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
                    122: 
1.87      raeburn   123:     my $domain = &Apache::lonnet::default_login_domain();
1.63      albertel  124:     if (($env{'form.domain'}) && 
1.89      albertel  125: 	(&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63      albertel  126: 	$domain=$env{'form.domain'};
1.46      www       127:     }
1.1       albertel  128:     my $role    = $r->dir_config('lonRole');
                    129:     my $loadlim = $r->dir_config('lonLoadLim');
1.90      raeburn   130:     my $servadm = $r->dir_config('lonAdmEMail');
1.1       albertel  131:     my $lonhost = $r->dir_config('lonHostID');
                    132:     my $tabdir  = $r->dir_config('lonTabDir');
1.6       www       133:     my $include = $r->dir_config('lonIncludes');
1.37      www       134:     my $expire  = $r->dir_config('lonExpire');
1.44      www       135:     my $version = $r->dir_config('lonVersion');
1.88      albertel  136:     my $host_name = &Apache::lonnet::hostname($lonhost);
1.1       albertel  137: 
1.30      www       138: # --------------------------------------------- Default values for login fields
                    139: 
1.63      albertel  140:     my $authusername=($env{'form.username'}?$env{'form.username'}:'');
                    141:     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30      www       142: 
                    143: # ---------------------------------------------------------- Determine own load
1.1       albertel  144:     my $loadavg;
1.41      albertel  145:     {
                    146: 	my $loadfile=Apache::File->new('/proc/loadavg');
                    147: 	$loadavg=<$loadfile>;
                    148:     }
1.1       albertel  149:     $loadavg =~ s/\s.*//g;
1.57      matthew   150:     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41      albertel  151:     my $userloadpercent=&Apache::lonnet::userload();
1.1       albertel  152: 
1.30      www       153: # ------------------------------------------------------- Do the load balancing
1.80      albertel  154:     my $otherserver= &Apache::lonnet::absolute_url($host_name);
1.31      www       155:     my $firsturl=
1.63      albertel  156:     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.97      albertel  157: # ---------------------------------------------------------- Are we overloaded?
                    158:     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  159:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    160: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  161:     }
1.6       www       162: 
1.45      www       163: # ----------------------------------------------------------- Get announcements
                    164:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       165: # -------------------------------------------------------- Set login parameters
                    166: 
                    167:     my @hexstr=('0','1','2','3','4','5','6','7',
                    168:                 '8','9','a','b','c','d','e','f');
                    169:     my $lkey='';
                    170:     for (0..7) {
                    171:         $lkey.=$hexstr[rand(15)];
                    172:     }
                    173: 
                    174:     my $ukey='';
                    175:     for (0..7) {
                    176:         $ukey.=$hexstr[rand(15)];
                    177:     }
                    178: 
                    179:     my $lextkey=hex($lkey);
1.15      www       180:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    181: 
1.6       www       182:     my $uextkey=hex($ukey);
1.15      www       183:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    184: 
1.31      www       185: # -------------------------------------------------------- Store away log token
1.106.4.3  raeburn   186:     my $tokenextras;
                    187:     if ($env{'form.role'}) {
                    188:         $tokenextras = '&role='.&escape($env{'form.role'});
                    189:     }
                    190:     if ($env{'form.symb'}) {
                    191:         if (!$tokenextras) {
                    192:             $tokenextras = '&';
                    193:         }
                    194:         $tokenextras .= '&symb='.&escape($env{'form.symb'});
                    195:     }
1.6       www       196:     my $logtoken=Apache::lonnet::reply(
1.106.4.3  raeburn   197:        'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
1.6       www       198:        $lonhost);
1.31      www       199: 
                    200: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    201: 
                    202:     if ($logtoken eq 'con_lost') {
                    203:         my $spares='';
1.64      albertel  204: 	my $last;
                    205:         foreach my $hostid (sort
                    206: 			    {
1.88      albertel  207: 				&Apache::lonnet::hostname($a) cmp
                    208: 				    &Apache::lonnet::hostname($b);
1.64      albertel  209: 			    }
                    210: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   211:             next if ($hostid eq $lonhost);
1.88      albertel  212: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    213: 	    next if ($last eq $hostname);
1.58      matthew   214:             $spares.='<br /><font size="+1"><a href="http://'.
1.88      albertel  215:                 $hostname.
1.58      matthew   216:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  217:                 $hostname.'</a>'.
1.106     bisitz    218:                 ' '.&mt('(preferred)').'</font>'.$/;
1.88      albertel  219: 	    $last=$hostname;
1.58      matthew   220:         }
                    221:         $spares.= '<br />';
1.88      albertel  222: 	my %all_hostnames = &Apache::lonnet::all_hostnames();
1.64      albertel  223:         foreach my $hostid (sort
                    224: 			    {
1.88      albertel  225: 				&Apache::lonnet::hostname($a) cmp
                    226: 				    &Apache::lonnet::hostname($b);
1.64      albertel  227: 			    }
1.88      albertel  228: 			    keys(%all_hostnames)) {
1.58      matthew   229:             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.88      albertel  230: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    231:             next if ($last eq $hostname);
1.58      matthew   232:             $spares.='<br /><a href="http://'.
1.88      albertel  233:                 $hostname.
1.58      matthew   234:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  235:                 $hostname.'</a>';
                    236: 	    $last=$hostname;
1.31      www       237:         }
1.103     bisitz    238: 	$r->print(
                    239:            '<html>'
                    240:           .'<head><title>'
                    241:           .&mt('The LearningOnline Network with CAPA')
                    242:           .'</title></head>'
                    243:           .'<body bgcolor="#FFFFFF">'
                    244:           .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
                    245:           .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
                    246:           .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'
                    247:           .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'
                    248:           .$spares
                    249:           .'</body>'
                    250:           .'</html>'
                    251:         );
1.31      www       252:         return OK;
                    253:     }
                    254: 
                    255: # ----------------------------------------------- Apparently we are in business
1.90      raeburn   256:     $servadm=~s/\,/\<br \/\>/g;
1.38      www       257: 
1.21      www       258: # ----------------------------------------------------------- Front page design
1.35      www       259:     my $pgbg=
1.46      www       260:       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35      www       261:     my $font=
1.46      www       262:       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35      www       263:     my $link=
1.46      www       264:       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35      www       265:     my $vlink=
1.46      www       266:       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
                    267:     my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35      www       268:     my $mainbg=
1.46      www       269:       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35      www       270:     my $sidebg=
1.46      www       271:       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
1.98      raeburn   272:     my $textcol = 
                    273:       ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');
                    274:     my $bgcol =
                    275:       ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');
1.46      www       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);
1.98      raeburn   279:     my $login=&Apache::loncommon::designparm('login.login',$domain);
                    280:     if ($login eq '') {
                    281:         $login = $iconpath.'/'.&mt('userauthentication.gif');
                    282:     }
1.106.4.1  raeburn   283:     my $showbanner = 1;
                    284:     my $showmainlogo = 1;
                    285:     if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
                    286:         $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
                    287:     }
                    288:     if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
                    289:         $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
                    290:     }
1.98      raeburn   291:     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
1.90      raeburn   292:     my $showcoursecat =
                    293:         &Apache::loncommon::designparm('login.coursecatalog',$domain);
1.98      raeburn   294:     my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
1.101     raeburn   295:     my $shownewuserlink = 
                    296:         &Apache::loncommon::designparm('login.newuser',$domain);
1.66      www       297:     my $now=time;
1.98      raeburn   298:     my $js = (<<ENDSCRIPT);
1.6       www       299: 
1.106.4.1  raeburn   300:  <script type="text/javascript">
1.106.4.2  raeburn   301:  // <![CDATA[
1.14      albertel  302:     function send()
                    303:     {
1.98      raeburn   304:         this.document.server.elements.uname.value
1.6       www       305:        =this.document.client.elements.uname.value;
                    306: 
                    307:         this.document.server.elements.udom.value
                    308:        =this.document.client.elements.udom.value;
                    309: 
1.33      www       310:         this.document.server.elements.imagesuppress.value
1.36      www       311:        =this.document.client.elements.imagesuppress.checked;
1.33      www       312: 
                    313:         this.document.server.elements.embedsuppress.value
1.36      www       314:        =this.document.client.elements.embedsuppress.checked;
1.33      www       315: 
1.34      www       316:         this.document.server.elements.appletsuppress.value
1.36      www       317:        =this.document.client.elements.appletsuppress.checked;
1.34      www       318: 
1.33      www       319:         this.document.server.elements.fontenhance.value
1.36      www       320:        =this.document.client.elements.fontenhance.checked;
1.33      www       321: 
                    322:         this.document.server.elements.blackwhite.value
1.36      www       323:        =this.document.client.elements.blackwhite.checked;
1.33      www       324: 
1.35      www       325:         this.document.server.elements.remember.value
1.36      www       326:        =this.document.client.elements.remember.checked;
1.35      www       327: 
1.6       www       328:         uextkey=this.document.client.elements.uextkey.value;
                    329:         lextkey=this.document.client.elements.lextkey.value;
                    330:         initkeys();
                    331: 
1.65      www       332:         this.document.server.elements.upass0.value
1.98      raeburn   333:             =crypted(this.document.client.elements.upass$now.value.substr(0,15));
                    334:         this.document.server.elements.upass1.value
                    335:             =crypted(this.document.client.elements.upass$now.value.substr(15,15));
                    336:         this.document.server.elements.upass2.value
                    337:             =crypted(this.document.client.elements.upass$now.value.substr(30,15));
1.66      www       338: 
                    339:         this.document.client.elements.uname.value='';
                    340:         this.document.client.elements.upass$now.value='';
1.6       www       341: 
                    342:         this.document.server.submit();
1.98      raeburn   343:         return false;
1.6       www       344:     }
1.106.4.2  raeburn   345:  // ]]>
1.14      albertel  346:  </script>
1.98      raeburn   347: 
1.16      www       348: ENDSCRIPT
1.6       www       349: 
1.98      raeburn   350: # --------------------------------------------------- Print login screen header
                    351: 
                    352:     my %add_entries = (topmargin    => "0",
                    353:                        leftmargin   => "0",
                    354:                        marginheight => "0",
                    355:                        marginwidth  => "0",
                    356:                        bgcolor      => "$pgbg",
                    357:                        text         => "$font",
                    358:                        link         => "$link",
                    359:                        vlink        => "$vlink",
                    360:                        alink        => "$alink",);
                    361: 
                    362:     $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
                    363:                                        { 'redirect'       => [$expire,'/adm/roles'], 
                    364:                                          'add_entries' => \%add_entries,
                    365:                                          'only_body'   => 1,}));
                    366: 
                    367: # ----------------------------------------------------------------------- Texts
                    368: 
                    369: my %lt=&Apache::lonlocal::texthash(
                    370: 		  'un'  => 'Username',
                    371: 		  'pw'  => 'Password',
                    372: 		  'dom' => 'Domain',
1.105     bisitz    373: 		  'load' => 'Server Load',
1.98      raeburn   374:                   'userload' => 'User Load',
                    375:                   'about'  => 'About LON-CAPA',
                    376:                   'access' => 'Accessibility Options',
                    377:                   'catalog' => 'Course Catalog',
                    378: 		  'log' => 'Log in',
                    379: 		  'help' => 'Log-in Help',
                    380: 		  'serv' => 'Server',
                    381:                   'servadm' => 'Server Administration',
                    382:                   'helpdesk' => 'Contact Helpdesk',
1.99      bisitz    383:                   'forgotpw' => 'Forgot password?',
1.101     raeburn   384:                   'newuser'  => 'New User?',
1.99      bisitz    385:                   'options_headline' => 'Select Accessibility Options',
                    386:                   'sprs_img' => 'Suppress rendering of images',
                    387:                   'sprs_applet' => 'Suppress Java applets',
                    388:                   'sprs_embed' => 'Suppress rendering of embedded multimedia',
                    389:                   'sprs_font' => 'Increase font size',
                    390:                   'sprs_blackwhite' => 'Switch to black and white mode',
                    391:                   'remember' => 'Remember these settings for next login');
1.98      raeburn   392: # -------------------------------------------------- Change password field name
                    393:     my $forgotpw = &forgotpwdisplay(%lt);
                    394:     my $loginhelp = &loginhelpdisplay(%lt);
                    395: 
                    396: # ---------------------------------------------------- Serve out DES JavaScript
                    397:     {
                    398:         my $jsh=Apache::File->new($include."/londes.js");
                    399:         $r->print(<$jsh>);
                    400:     }
                    401: # ---------------------------------------------------------- Serve rest of page
                    402: 
1.16      www       403:     if ($fullgraph) {
                    404: 	$r->print(
1.106.4.1  raeburn   405: 		  '<table width="100%" cellpadding="0" cellspacing="0" border="0">');
1.16      www       406:     }
1.6       www       407: 
1.16      www       408:     $r->print(<<ENDSERVERFORM);
1.14      albertel  409:   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33      www       410:    <input type="hidden" name="logtoken" value="$logtoken" />
                    411:    <input type="hidden" name="serverid" value="$lonhost" />
1.63      albertel  412:    <input type="hidden" name="interface" value="$env{'form.interface'}" />
1.33      www       413:    <input type="hidden" name="uname" value="" />
1.65      www       414:    <input type="hidden" name="upass0" value="" />
                    415:    <input type="hidden" name="upass1" value="" />
                    416:    <input type="hidden" name="upass2" value="" />
1.33      www       417:    <input type="hidden" name="udom" value="" />
                    418:    <input type="hidden" name="imagesuppress"  value="" />
1.34      www       419:    <input type="hidden" name="appletsuppress"  value="" />
1.33      www       420:    <input type="hidden" name="embedsuppress"  value="" />
                    421:    <input type="hidden" name="fontenhance"  value="" />
                    422:    <input type="hidden" name="blackwhite"  value="" />
1.35      www       423:    <input type="hidden" name="remember"  value="" />
1.63      albertel  424:    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
                    425:    <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14      albertel  426:   </form>
1.16      www       427: ENDSERVERFORM
1.90      raeburn   428:     my $coursecatalog;
1.92      raeburn   429:     if (($showcoursecat eq '') || ($showcoursecat)) {
1.90      raeburn   430:         $coursecatalog = &coursecatalog_link($lt{'catalog'});
                    431:     }
1.101     raeburn   432:     my $newuserlink;
                    433:     if ($shownewuserlink) {
                    434:         $newuserlink = &newuser_link($lt{'newuser'});
                    435:     }
1.106.4.1  raeburn   436:     if ($fullgraph) {
                    437:         $r->print(<<HEADER);
1.14      albertel  438:   <!-- The LON-CAPA Header -->
                    439:   <tr>
                    440: 
                    441:    <!-- Row 1 Columns 2-4 -->
1.106.4.1  raeburn   442:    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg">
                    443: HEADER
                    444:         if ($showbanner) {
                    445:             $r->print(<<ENDBANNER);
                    446: <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
                    447: ENDBANNER
                    448:         }
                    449:         $r->print(<<ENDSTART);
                    450:    </td>
1.14      albertel  451:   </tr>
                    452: 
                    453:   <!-- The gray bar that starts the two table frames -->
                    454:   <tr>
                    455: 
                    456:    <!-- Row 2 Column 1 -->
1.21      www       457:    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  458: 
                    459:    <!-- Row 2 Column 2 -->
1.19      bowersj2  460:    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14      albertel  461: 
                    462:    <!-- Row 2 Column 3 -->
1.19      bowersj2  463:    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14      albertel  464: 
                    465:    <!-- Row 2 Column 4 -->
1.19      bowersj2  466:    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14      albertel  467:   </tr>
                    468:   <tr>
                    469:    
1.84      raeburn   470:    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
1.14      albertel  471:    <!-- Row 3 Column 1 -->
1.86      raeburn   472:    <td valign="top" height="60" align="left" bgcolor="$sidebg">
1.84      raeburn   473:     <table cellpadding="0" cellspacing="2" border="0">
                    474:      <tr>
                    475:       <td>&nbsp;</td>
                    476:       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
1.86      raeburn   477:      </tr>
                    478:      <tr>
                    479:       <td>&nbsp;</td>
                    480:       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
1.90      raeburn   481:      </tr>$coursecatalog
1.86      raeburn   482:      <tr>
1.84      raeburn   483:       <td colspan="2">&nbsp;</td>
1.86      raeburn   484:      </tr>
                    485:     </table>
                    486:    </td>
1.14      albertel  487:    <!-- The shaded space between the two main columns -->
                    488:    <!-- Row 3 Column 2 -->
1.19      bowersj2  489:    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  490: 
                    491:    <!-- The right main column holding the large LON-CAPA logo-->
                    492:    <!-- Rows 3-4 Column 3 -->
1.45      www       493:    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
1.106.4.1  raeburn   494: ENDSTART
                    495:         if ($showmainlogo) {
                    496:             $r->print(<<ENDLOGO);
1.14      albertel  497:     <center>
1.21      www       498:      <img src="$logo" alt="" />
1.14      albertel  499:     </center>
1.106.4.1  raeburn   500: ENDLOGO
                    501:         }
                    502:         $r->print(<<ENDTOP);
1.14      albertel  503:    </td>
                    504: 
                    505:    <!-- Row 3 Column 4 -->
1.19      bowersj2  506:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  507:   </tr>
                    508:   <tr>
                    509: 
                    510:    <!-- The entry form -->
                    511:    <!-- Row 4 Column 1 -->
1.21      www       512:    <td align="center" valign="middle" bgcolor="$sidebg">
1.16      www       513: ENDTOP
1.106.4.1  raeburn   514:     } else {
                    515:         $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1>'
                    516:                  .'<h2>'.&mt('Text-based Interface Login').'</h2>'
                    517:                  .$announcements);
                    518:     }
1.106.4.2  raeburn   519:     $r->print('<form name="client" action="" onsubmit="return(send())">');
1.33      www       520:     unless ($fullgraph) {
                    521:         $r->print(<<ENDACCESSOPTIONS);
1.99      bisitz    522: <h3>$lt{'options_headline'}</h3>
                    523: <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />
                    524: <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />
                    525: <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />
                    526: <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />
                    527: <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />
                    528: <br />
                    529: <input type="checkbox" name="remember" /> $lt{'remember'}<hr />
1.33      www       530: ENDACCESSOPTIONS
1.106.4.1  raeburn   531:     } else {
                    532:         $r->print(<<ENDNOOPT);
1.33      www       533: <input type="hidden" name="imagesuppress"  value="" />
                    534: <input type="hidden" name="embedsuppress"  value="" />
1.34      www       535: <input type="hidden" name="appletsuppress"  value="" />
1.33      www       536: <input type="hidden" name="fontenhance"  value="" />
                    537: <input type="hidden" name="blackwhite"  value="" />
1.35      www       538: <input type="hidden" name="remember"  value="" />
1.33      www       539: ENDNOOPT
1.106.4.1  raeburn   540:     }
1.98      raeburn   541:     my $logintitle;
                    542:     if ($loginheader eq 'text') {
                    543:         $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2">&nbsp;&nbsp;&nbsp;<b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';
                    544:     } else {
                    545:         $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.
                    546:                       &mt('User Authentication').'" /></td>';
                    547:     }
1.104     bisitz    548:     my $noscript_warning='<td colspan="2" bgcolor="'.$mainbg.'">'
                    549:                         .'<noscript><div class="LC_warning"><font size="-1">'
                    550:                         .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
                    551:                         .'</font></div></noscript></td>';
1.16      www       552:     $r->print(<<ENDLOGIN);
1.106.4.1  raeburn   553:      <input type="hidden" name="lextkey" value="$lextkey" />
                    554:      <input type="hidden" name="uextkey" value="$uextkey" />
1.14      albertel  555: 
                    556:      <!-- Start the sub-table for text and input alignment -->
1.106.4.1  raeburn   557:      <table border="0" cellspacing="0" cellpadding="0">
1.98      raeburn   558:       <tr>$logintitle</tr>
1.104     bisitz    559:       <tr>$noscript_warning</tr>
1.14      albertel  560:       <tr>
1.93      www       561:        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>
1.30      www       562:        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14      albertel  563:       </tr>
                    564:       <tr>
1.93      www       565:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>
1.66      www       566:        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14      albertel  567:       </tr>
                    568:       <tr>
1.93      www       569:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>
1.30      www       570:        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14      albertel  571:       </tr>
                    572:       <tr>
1.84      raeburn   573:        <td bgcolor="$mainbg">&nbsp;</td>
1.28      www       574:        <td bgcolor="$mainbg" valign="bottom" align="center">
1.14      albertel  575:         <br />
1.51      www       576:         <input type="submit" value="$lt{'log'}" />
1.14      albertel  577:        </td>
                    578:       </tr>
1.83      raeburn   579:       <tr>
                    580:        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
1.84      raeburn   581:         $loginhelp
1.83      raeburn   582:         $forgotpw
1.101     raeburn   583:         $newuserlink
                    584:         <br />
1.83      raeburn   585:        </td>
                    586:       </tr>
1.14      albertel  587:      </table>
                    588:      <!-- End sub-table -->
                    589:     </form>
1.16      www       590: ENDLOGIN
                    591:     if ($fullgraph) {
1.62      raeburn   592:         my $helpdeskscript;
1.90      raeburn   593:         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                    594:                                   $version,$authdomain,\$helpdeskscript);
1.16      www       595: 	$r->print(<<ENDDOCUMENT);
1.14      albertel  596:    </td>
                    597: 
                    598:    <!-- Row 4 Column 2 -->
1.19      bowersj2  599:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45      www       600: 
                    601:    <!-- Row 4 Column 3 -->
                    602: <td bgcolor="$mainbg">$announcements</td>
1.14      albertel  603: 
                    604:    <!-- Row 4 Column 4 -->
1.19      bowersj2  605:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  606:   </tr>
                    607:   <tr>
                    608: 
                    609:    <!-- Row 5 Column 1 -->
1.21      www       610:    <td bgcolor="$sidebg" valign="middle" align="left">
1.14      albertel  611:      <br />
1.106.4.1  raeburn   612:      <table border="0" cellspacing="0" cellpadding="0">
1.14      albertel  613:       <tr>
1.21      www       614:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       615:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  616:        </td>
1.106.4.1  raeburn   617:        <td bgcolor="$sidebg" align="left" valign="middle">
1.14      albertel  618:         <small><tt>&nbsp;$domain</tt></small>
                    619:        </td>
                    620:       </tr>
                    621:       <tr>
1.21      www       622:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       623:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  624:        </td>
1.106.4.1  raeburn   625:        <td bgcolor="$sidebg" align="left" valign="middle">
1.14      albertel  626:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    627:        </td>
                    628:       </tr>
                    629:       <tr>
1.106.4.1  raeburn   630:        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">
                    631:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small></span>
1.14      albertel  632:        </td>
1.106.4.1  raeburn   633:        <td bgcolor="$sidebg" align="left" valign="middle">
                    634:         <small><tt>&nbsp;$loadpercent%</tt></small>
1.42      albertel  635:        </td>
                    636:       </tr>
                    637:       <tr>
1.106.4.1  raeburn   638:        <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">
                    639:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small></span>
1.42      albertel  640:        </td>
1.106.4.1  raeburn   641:        <td bgcolor="$sidebg" align="left" valign="middle">
                    642:         <small><tt>&nbsp;$userloadpercent%</tt></small>
1.14      albertel  643:        </td>
                    644:       </tr>
                    645:      </table>
                    646:      <br />
1.60      raeburn   647:     $contactblock
1.14      albertel  648:    </td>
                    649: 
                    650:    <!-- Row 5 Column 2 -->
1.19      bowersj2  651:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  652: 
                    653:    <!-- Row 5 Column 3 -->
1.21      www       654:    <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20      www       655: $domainlogo
                    656: </td>
1.14      albertel  657: 
                    658:    <!-- Row 5 Column 4 -->
1.19      bowersj2  659:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  660:   </tr>
                    661:   <tr>
                    662: 
                    663:    <!-- Row 6 Column 1 -->
1.21      www       664:    <td bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  665: 
                    666:    <!-- Row 6 Column 2 -->
1.19      bowersj2  667:    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14      albertel  668: 
                    669:    <!-- Row 6 Column 3 -->
1.19      bowersj2  670:    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14      albertel  671: 
                    672:    <!-- Row 6 Column 4 -->
1.19      bowersj2  673:    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14      albertel  674:   </tr>
1.1       albertel  675:  </table>
1.25      bowersj2  676: 
1.59      albertel  677: <script type="text/javascript">
1.106.4.2  raeburn   678: // <![CDATA[
1.59      albertel  679: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  680: if ( document.client.uname ) { document.client.uname.focus(); }
1.106.4.2  raeburn   681: // ]]>
1.25      bowersj2  682: </script>
1.62      raeburn   683: $helpdeskscript
1.14      albertel  684: 
1.1       albertel  685: ENDDOCUMENT
1.16      www       686: }
1.98      raeburn   687:     my %endargs = ( 'noredirectlink' => 1, );
                    688:     $r->print(&Apache::loncommon::end_page(\%endargs));
1.1       albertel  689:     return OK;
1.60      raeburn   690: }
                    691: 
                    692: sub contactdisplay {
1.90      raeburn   693:     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   694:     my $contactblock;
1.62      raeburn   695:     my $showhelpdesk = 0;
                    696:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    697:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    698:         $showhelpdesk = 1;
                    699:     }
1.90      raeburn   700:     if ($servadm && $showadminmail) {
                    701:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                    702:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
                    703:     }
1.60      raeburn   704:     if ($showhelpdesk) {
1.84      raeburn   705:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
1.75      www       706:         my $thisurl = &escape('/adm/login');
1.62      raeburn   707:         $$helpdeskscript = <<"ENDSCRIPT";
                    708: <script type="text/javascript">
1.106.4.2  raeburn   709: // <![CDATA[
1.62      raeburn   710: function helpdesk() {
                    711:     var codedom = document.client.udom.value;
                    712:     if (codedom == '') {
                    713:         codedom = "$authdomain";
                    714:     }
                    715:     var querystr = "origurl=$thisurl&codedom="+codedom;
                    716:     document.location.href = "/adm/helpdesk?"+querystr;
                    717:     return;
                    718: }
1.106.4.2  raeburn   719: // ]]>
1.62      raeburn   720: </script>
                    721: ENDSCRIPT
1.60      raeburn   722:     }
                    723:     $contactblock .= <<"ENDBLOCK";
                    724:      &nbsp;&nbsp;&nbsp;$version
                    725: ENDBLOCK
                    726:     return $contactblock;
                    727: }
1.83      raeburn   728: 
                    729: sub forgotpwdisplay {
1.84      raeburn   730:     my (%lt) = @_;
1.83      raeburn   731:     my $prompt_for_resetpw = 1; 
                    732:     if ($prompt_for_resetpw) {
1.101     raeburn   733:         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br />';
1.84      raeburn   734:     }
                    735:     return;
                    736: }
                    737: 
                    738: sub loginhelpdisplay {
                    739:     my (%lt) = @_;
                    740:     my $login_help = 1;
                    741:     if ($login_help) {
                    742:         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
1.83      raeburn   743:     }
                    744:     return;
                    745: }
1.1       albertel  746: 
1.90      raeburn   747: sub coursecatalog_link {
                    748:     my ($linkname) = @_;
                    749:     return <<"END";
                    750:      <tr>
                    751:       <td>&nbsp;</td>
                    752:       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
                    753:      </tr>
                    754: END
                    755: }
                    756: 
1.101     raeburn   757: sub newuser_link {
                    758:     my ($linkname) = @_;
                    759:     return '&nbsp;&nbsp;&nbsp;<a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';
                    760: }
                    761: 
1.1       albertel  762: 1;
                    763: __END__

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