Annotation of loncom/auth/lonlogin.pm, revision 1.101

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.101   ! raeburn     4: # $Id: lonlogin.pm,v 1.100 2008/01/24 15:06:21 bisitz Exp $
1.11      www         5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.14      albertel   28: 
1.1       albertel   29: package Apache::lonlogin;
                     30: 
                     31: use strict;
                     32: use Apache::Constants qw(:common);
                     33: use Apache::File ();
1.63      albertel   34: use Apache::lonnet;
1.12      albertel   35: use Apache::loncommon();
1.49      www        36: use Apache::lonauth();
1.50      www        37: use Apache::lonlocal;
1.71      albertel   38: use Apache::migrateuser();
1.75      www        39: use lib '/home/httpd/lib/perl/';
                     40: use LONCAPA;
                     41:  
1.1       albertel   42: sub handler {
                     43:     my $r = shift;
1.71      albertel   44: 
                     45:     &Apache::loncommon::get_unprocessed_cgi
1.79      albertel   46: 	(join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
                     47: 	      $ENV{'REDIRECT_QUERY_STRING'}),
1.71      albertel   48: 	 ['interface','username','domain','firsturl','localpath','localres',
                     49: 	  'token']);
                     50: 
                     51: # -- check if they are a migrating user
                     52:     if (defined($env{'form.token'})) {
                     53: 	return &Apache::migrateuser::handler($r);
                     54:     }
                     55: 
1.53      www        56:     &Apache::loncommon::no_cache($r);
                     57:     &Apache::lonlocal::get_language_handle($r);
1.54      www        58:     &Apache::loncommon::content_type($r,'text/html');
1.1       albertel   59:     $r->send_http_header;
                     60:     return OK if $r->header_only;
                     61: 
1.49      www        62: 
                     63: # Are we re-routing?
                     64:     if (-e '/home/httpd/html/lon-status/reroute.txt') {
                     65: 	&Apache::lonauth::reroute($r);
                     66: 	return OK;
                     67:     }
1.55      www        68: 
1.71      albertel   69: 
1.55      www        70: # -------------------------------- Prevent users from attempting to login twice
1.95      albertel   71:     my $handle = &Apache::lonnet::check_for_valid_session($r);
                     72:     if ($handle=~/^publicuser\_/) {
1.70      www        73: # For "public user" - remove it, we apparently really want to login
1.95      albertel   74: 	unlink($r->dir_config('lonIDsDir')."/$handle.id");
                     75:     } elsif ($handle ne '') {
1.55      www        76: # Indeed, a valid token is found
1.95      albertel   77: 	my $start_page = 
                     78: 	    &Apache::loncommon::start_page('Already logged in');
                     79: 	my $end_page = 
                     80: 	    &Apache::loncommon::end_page();
1.100     bisitz     81: 	$r->print(
                     82:                   $start_page
                     83:                  .'<h1>'.&mt('You are already logged in').'</h1>'
                     84:                  .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]logout[_4].',
                     85:                   '<a href="/adm/roles">','</a>','<a href="/adm/logout">','</a>').'</p>'
                     86:                  .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
                     87:                  .$end_page
                     88:                  );
1.95      albertel   89:         return OK;
1.55      www        90:     }
                     91: 
                     92: # ---------------------------------------------------- No valid token, continue
1.16      www        93: 
1.70      www        94:  # ---------------------------- Not possible to really login to domain "public"
                     95:     if ($env{'form.domain'} eq 'public') {
                     96: 	$env{'form.domain'}='';
                     97: 	$env{'form.username'}='';
                     98:     }
1.32      www        99: # ----------------------------------------------------------- Process Interface
1.63      albertel  100:     $env{'form.interface'}=~s/\W//g;
1.16      www       101: 
1.32      www       102:     my $textbrowsers=$r->dir_config('lonTextBrowsers');
                    103:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
                    104:     
                    105:     foreach (split(/\:/,$textbrowsers)) {
                    106: 	if ($httpbrowser=~/$_/i) {
1.63      albertel  107: 	    $env{'form.interface'}='textual';
1.32      www       108:         }
                    109:     }
                    110: 
1.63      albertel  111:     my $fullgraph=($env{'form.interface'} ne 'textual');
1.94      albertel  112: 
                    113:     my $iconpath= 
                    114: 	&Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
                    115: 
1.87      raeburn   116:     my $domain = &Apache::lonnet::default_login_domain();
1.63      albertel  117:     if (($env{'form.domain'}) && 
1.89      albertel  118: 	(&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63      albertel  119: 	$domain=$env{'form.domain'};
1.46      www       120:     }
1.1       albertel  121:     my $role    = $r->dir_config('lonRole');
                    122:     my $loadlim = $r->dir_config('lonLoadLim');
1.90      raeburn   123:     my $servadm = $r->dir_config('lonAdmEMail');
1.1       albertel  124:     my $lonhost = $r->dir_config('lonHostID');
                    125:     my $tabdir  = $r->dir_config('lonTabDir');
1.6       www       126:     my $include = $r->dir_config('lonIncludes');
1.37      www       127:     my $expire  = $r->dir_config('lonExpire');
1.44      www       128:     my $version = $r->dir_config('lonVersion');
1.88      albertel  129:     my $host_name = &Apache::lonnet::hostname($lonhost);
1.1       albertel  130: 
1.30      www       131: # --------------------------------------------- Default values for login fields
                    132: 
1.63      albertel  133:     my $authusername=($env{'form.username'}?$env{'form.username'}:'');
                    134:     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30      www       135: 
                    136: # ---------------------------------------------------------- Determine own load
1.1       albertel  137:     my $loadavg;
1.41      albertel  138:     {
                    139: 	my $loadfile=Apache::File->new('/proc/loadavg');
                    140: 	$loadavg=<$loadfile>;
                    141:     }
1.1       albertel  142:     $loadavg =~ s/\s.*//g;
1.57      matthew   143:     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41      albertel  144:     my $userloadpercent=&Apache::lonnet::userload();
1.1       albertel  145: 
1.30      www       146: # ------------------------------------------------------- Do the load balancing
1.80      albertel  147:     my $otherserver= &Apache::lonnet::absolute_url($host_name);
1.31      www       148:     my $firsturl=
1.63      albertel  149:     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.97      albertel  150: # ---------------------------------------------------------- Are we overloaded?
                    151:     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  152:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    153: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  154:     }
1.6       www       155: 
1.45      www       156: # ----------------------------------------------------------- Get announcements
                    157:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       158: # -------------------------------------------------------- Set login parameters
                    159: 
                    160:     my @hexstr=('0','1','2','3','4','5','6','7',
                    161:                 '8','9','a','b','c','d','e','f');
                    162:     my $lkey='';
                    163:     for (0..7) {
                    164:         $lkey.=$hexstr[rand(15)];
                    165:     }
                    166: 
                    167:     my $ukey='';
                    168:     for (0..7) {
                    169:         $ukey.=$hexstr[rand(15)];
                    170:     }
                    171: 
                    172:     my $lextkey=hex($lkey);
1.15      www       173:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    174: 
1.6       www       175:     my $uextkey=hex($ukey);
1.15      www       176:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    177: 
1.31      www       178: # -------------------------------------------------------- Store away log token
1.6       www       179:     my $logtoken=Apache::lonnet::reply(
1.7       www       180:        'tmpput:'.$ukey.$lkey.'&'.$firsturl,
1.6       www       181:        $lonhost);
1.31      www       182: 
                    183: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    184: 
                    185:     if ($logtoken eq 'con_lost') {
                    186:         my $spares='';
1.64      albertel  187: 	my $last;
                    188:         foreach my $hostid (sort
                    189: 			    {
1.88      albertel  190: 				&Apache::lonnet::hostname($a) cmp
                    191: 				    &Apache::lonnet::hostname($b);
1.64      albertel  192: 			    }
                    193: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   194:             next if ($hostid eq $lonhost);
1.88      albertel  195: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    196: 	    next if ($last eq $hostname);
1.58      matthew   197:             $spares.='<br /><font size="+1"><a href="http://'.
1.88      albertel  198:                 $hostname.
1.58      matthew   199:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  200:                 $hostname.'</a>'.
1.58      matthew   201:                 ' (preferred)</font>'.$/;
1.88      albertel  202: 	    $last=$hostname;
1.58      matthew   203:         }
                    204:         $spares.= '<br />';
1.88      albertel  205: 	my %all_hostnames = &Apache::lonnet::all_hostnames();
1.64      albertel  206:         foreach my $hostid (sort
                    207: 			    {
1.88      albertel  208: 				&Apache::lonnet::hostname($a) cmp
                    209: 				    &Apache::lonnet::hostname($b);
1.64      albertel  210: 			    }
1.88      albertel  211: 			    keys(%all_hostnames)) {
1.58      matthew   212:             next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.88      albertel  213: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    214:             next if ($last eq $hostname);
1.58      matthew   215:             $spares.='<br /><a href="http://'.
1.88      albertel  216:                 $hostname.
1.58      matthew   217:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  218:                 $hostname.'</a>';
                    219: 	    $last=$hostname;
1.31      www       220:         }
                    221: 	$r->print(<<ENDTROUBLE);
                    222: <html>
                    223: <head><title>The LearningOnline Network with CAPA</title></head>
                    224: <body bgcolor="#FFFFFF">
                    225: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
                    226: <h3>This LON-CAPA server is temporarily not available for login</h3>
                    227: <p>Please attempt to login to one of the following servers:</p>$spares
                    228: </body>
                    229: </html>
                    230: ENDTROUBLE
                    231:         return OK;
                    232:     }
                    233: 
                    234: # ----------------------------------------------- Apparently we are in business
1.90      raeburn   235:     $servadm=~s/\,/\<br \/\>/g;
1.38      www       236: 
1.21      www       237: # ----------------------------------------------------------- Front page design
1.35      www       238:     my $pgbg=
1.46      www       239:       ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35      www       240:     my $font=
1.46      www       241:       ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35      www       242:     my $link=
1.46      www       243:       ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35      www       244:     my $vlink=
1.46      www       245:       ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
                    246:     my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35      www       247:     my $mainbg=
1.46      www       248:       ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35      www       249:     my $sidebg=
1.46      www       250:       ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
1.98      raeburn   251:     my $textcol = 
                    252:       ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');
                    253:     my $bgcol =
                    254:       ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');
1.46      www       255:     my $logo=&Apache::loncommon::designparm('login.logo',$domain);
                    256:     my $img=&Apache::loncommon::designparm('login.img',$domain);
1.90      raeburn   257:     my $domainlogo=&Apache::loncommon::domainlogo($domain);
1.98      raeburn   258:     my $login=&Apache::loncommon::designparm('login.login',$domain);
                    259:     if ($login eq '') {
                    260:         $login = $iconpath.'/'.&mt('userauthentication.gif');
                    261:     }
                    262:     my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
1.90      raeburn   263:     my $showcoursecat =
                    264:         &Apache::loncommon::designparm('login.coursecatalog',$domain);
1.98      raeburn   265:     my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
1.101   ! raeburn   266:     my $shownewuserlink = 
        !           267:         &Apache::loncommon::designparm('login.newuser',$domain);
1.66      www       268:     my $now=time;
1.98      raeburn   269:     my $js = (<<ENDSCRIPT);
1.6       www       270: 
1.14      albertel  271:  <script language="JavaScript">
                    272:     function send()
                    273:     {
1.98      raeburn   274:         this.document.server.elements.uname.value
1.6       www       275:        =this.document.client.elements.uname.value;
                    276: 
                    277:         this.document.server.elements.udom.value
                    278:        =this.document.client.elements.udom.value;
                    279: 
1.33      www       280:         this.document.server.elements.imagesuppress.value
1.36      www       281:        =this.document.client.elements.imagesuppress.checked;
1.33      www       282: 
                    283:         this.document.server.elements.embedsuppress.value
1.36      www       284:        =this.document.client.elements.embedsuppress.checked;
1.33      www       285: 
1.34      www       286:         this.document.server.elements.appletsuppress.value
1.36      www       287:        =this.document.client.elements.appletsuppress.checked;
1.34      www       288: 
1.33      www       289:         this.document.server.elements.fontenhance.value
1.36      www       290:        =this.document.client.elements.fontenhance.checked;
1.33      www       291: 
                    292:         this.document.server.elements.blackwhite.value
1.36      www       293:        =this.document.client.elements.blackwhite.checked;
1.33      www       294: 
1.35      www       295:         this.document.server.elements.remember.value
1.36      www       296:        =this.document.client.elements.remember.checked;
1.35      www       297: 
1.6       www       298:         uextkey=this.document.client.elements.uextkey.value;
                    299:         lextkey=this.document.client.elements.lextkey.value;
                    300:         initkeys();
                    301: 
1.65      www       302:         this.document.server.elements.upass0.value
1.98      raeburn   303:             =crypted(this.document.client.elements.upass$now.value.substr(0,15));
                    304:         this.document.server.elements.upass1.value
                    305:             =crypted(this.document.client.elements.upass$now.value.substr(15,15));
                    306:         this.document.server.elements.upass2.value
                    307:             =crypted(this.document.client.elements.upass$now.value.substr(30,15));
1.66      www       308: 
                    309:         this.document.client.elements.uname.value='';
                    310:         this.document.client.elements.upass$now.value='';
1.6       www       311: 
                    312:         this.document.server.submit();
1.98      raeburn   313:         return false;
1.6       www       314:     }
1.14      albertel  315:  </script>
1.98      raeburn   316: 
1.16      www       317: ENDSCRIPT
1.6       www       318: 
1.98      raeburn   319: # --------------------------------------------------- Print login screen header
                    320: 
                    321:     my %add_entries = (topmargin    => "0",
                    322:                        leftmargin   => "0",
                    323:                        marginheight => "0",
                    324:                        marginwidth  => "0",
                    325:                        bgcolor      => "$pgbg",
                    326:                        text         => "$font",
                    327:                        link         => "$link",
                    328:                        vlink        => "$vlink",
                    329:                        alink        => "$alink",);
                    330: 
                    331:     $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
                    332:                                        { 'redirect'       => [$expire,'/adm/roles'], 
                    333:                                          'add_entries' => \%add_entries,
                    334:                                          'only_body'   => 1,}));
                    335: 
                    336: # ----------------------------------------------------------------------- Texts
                    337: 
                    338: my %lt=&Apache::lonlocal::texthash(
                    339: 		  'un'  => 'Username',
                    340: 		  'pw'  => 'Password',
                    341: 		  'dom' => 'Domain',
                    342: 		  'perc' => 'percent',
                    343: 		  'load' => 'Load',
                    344:                   'userload' => 'User Load',
                    345:                   'about'  => 'About LON-CAPA',
                    346:                   'access' => 'Accessibility Options',
                    347:                   'catalog' => 'Course Catalog',
                    348: 		  'log' => 'Log in',
                    349: 		  'help' => 'Log-in Help',
                    350: 		  'serv' => 'Server',
                    351:                   'servadm' => 'Server Administration',
                    352:                   'helpdesk' => 'Contact Helpdesk',
1.99      bisitz    353:                   'forgotpw' => 'Forgot password?',
1.101   ! raeburn   354:                   'newuser'  => 'New User?',
1.99      bisitz    355:                   'options_headline' => 'Select Accessibility Options',
                    356:                   'sprs_img' => 'Suppress rendering of images',
                    357:                   'sprs_applet' => 'Suppress Java applets',
                    358:                   'sprs_embed' => 'Suppress rendering of embedded multimedia',
                    359:                   'sprs_font' => 'Increase font size',
                    360:                   'sprs_blackwhite' => 'Switch to black and white mode',
                    361:                   'remember' => 'Remember these settings for next login');
1.98      raeburn   362: # -------------------------------------------------- Change password field name
                    363:     my $forgotpw = &forgotpwdisplay(%lt);
                    364:     my $loginhelp = &loginhelpdisplay(%lt);
                    365: 
                    366: # ---------------------------------------------------- Serve out DES JavaScript
                    367:     {
                    368:         my $jsh=Apache::File->new($include."/londes.js");
                    369:         $r->print(<$jsh>);
                    370:     }
                    371: # ---------------------------------------------------------- Serve rest of page
                    372: 
1.16      www       373:     if ($fullgraph) {
                    374: 	$r->print(
                    375: 		  '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
                    376:     }
1.6       www       377: 
1.16      www       378:     $r->print(<<ENDSERVERFORM);
1.14      albertel  379:   <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33      www       380:    <input type="hidden" name="logtoken" value="$logtoken" />
                    381:    <input type="hidden" name="serverid" value="$lonhost" />
1.63      albertel  382:    <input type="hidden" name="interface" value="$env{'form.interface'}" />
1.33      www       383:    <input type="hidden" name="uname" value="" />
1.65      www       384:    <input type="hidden" name="upass0" value="" />
                    385:    <input type="hidden" name="upass1" value="" />
                    386:    <input type="hidden" name="upass2" value="" />
1.33      www       387:    <input type="hidden" name="udom" value="" />
                    388:    <input type="hidden" name="imagesuppress"  value="" />
1.34      www       389:    <input type="hidden" name="appletsuppress"  value="" />
1.33      www       390:    <input type="hidden" name="embedsuppress"  value="" />
                    391:    <input type="hidden" name="fontenhance"  value="" />
                    392:    <input type="hidden" name="blackwhite"  value="" />
1.35      www       393:    <input type="hidden" name="remember"  value="" />
1.63      albertel  394:    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
                    395:    <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14      albertel  396:   </form>
1.16      www       397: ENDSERVERFORM
1.90      raeburn   398:     my $coursecatalog;
1.92      raeburn   399:     if (($showcoursecat eq '') || ($showcoursecat)) {
1.90      raeburn   400:         $coursecatalog = &coursecatalog_link($lt{'catalog'});
                    401:     }
1.101   ! raeburn   402:     my $newuserlink;
        !           403:     if ($shownewuserlink) {
        !           404:         $newuserlink = &newuser_link($lt{'newuser'});
        !           405:     }
1.16      www       406:     if ($fullgraph) { $r->print(<<ENDTOP);
1.14      albertel  407:   <!-- The LON-CAPA Header -->
                    408:   <tr>
                    409: 
                    410:    <!-- Row 1 Columns 2-4 -->
1.29      www       411:    <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
1.14      albertel  412:   </tr>
                    413: 
                    414:   <!-- The gray bar that starts the two table frames -->
                    415:   <tr>
                    416: 
                    417:    <!-- Row 2 Column 1 -->
1.21      www       418:    <td width=182 height=27 bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  419: 
                    420:    <!-- Row 2 Column 2 -->
1.19      bowersj2  421:    <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14      albertel  422: 
                    423:    <!-- Row 2 Column 3 -->
1.19      bowersj2  424:    <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14      albertel  425: 
                    426:    <!-- Row 2 Column 4 -->
1.19      bowersj2  427:    <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14      albertel  428:   </tr>
                    429:   <tr>
                    430:    
1.84      raeburn   431:    <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
1.14      albertel  432:    <!-- Row 3 Column 1 -->
1.86      raeburn   433:    <td valign="top" height="60" align="left" bgcolor="$sidebg">
1.84      raeburn   434:     <table cellpadding="0" cellspacing="2" border="0">
                    435:      <tr>
                    436:       <td>&nbsp;</td>
                    437:       <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
1.86      raeburn   438:      </tr>
                    439:      <tr>
                    440:       <td>&nbsp;</td>
                    441:       <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
1.90      raeburn   442:      </tr>$coursecatalog
1.86      raeburn   443:      <tr>
1.84      raeburn   444:       <td colspan="2">&nbsp;</td>
1.86      raeburn   445:      </tr>
                    446:     </table>
                    447:    </td>
1.14      albertel  448:    <!-- The shaded space between the two main columns -->
                    449:    <!-- Row 3 Column 2 -->
1.19      bowersj2  450:    <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  451: 
                    452:    <!-- The right main column holding the large LON-CAPA logo-->
                    453:    <!-- Rows 3-4 Column 3 -->
1.45      www       454:    <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
1.14      albertel  455:     <center>
1.21      www       456:      <img src="$logo" alt="" />
1.14      albertel  457:     </center>
                    458:    </td>
                    459: 
                    460:    <!-- Row 3 Column 4 -->
1.19      bowersj2  461:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  462:   </tr>
                    463:   <tr>
                    464: 
                    465:    <!-- The entry form -->
                    466:    <!-- Row 4 Column 1 -->
1.21      www       467:    <td align="center" valign="middle" bgcolor="$sidebg">
1.16      www       468: ENDTOP
1.32      www       469: } else {
1.99      bisitz    470:     $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1>'
                    471:              .'<h2>'.&mt('Text-based Interface Login').'</h2>'
                    472:              .$announcements);
1.33      www       473: }
                    474:     $r->print('<form name="client" onsubmit="return(send())">');
                    475:     unless ($fullgraph) {
                    476:         $r->print(<<ENDACCESSOPTIONS);
1.99      bisitz    477: <h3>$lt{'options_headline'}</h3>
                    478: <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />
                    479: <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />
                    480: <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />
                    481: <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />
                    482: <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />
                    483: <br />
                    484: <input type="checkbox" name="remember" /> $lt{'remember'}<hr />
1.33      www       485: ENDACCESSOPTIONS
                    486: } else {
                    487:     $r->print(<<ENDNOOPT);
                    488: <input type="hidden" name="imagesuppress"  value="" />
                    489: <input type="hidden" name="embedsuppress"  value="" />
1.34      www       490: <input type="hidden" name="appletsuppress"  value="" />
1.33      www       491: <input type="hidden" name="fontenhance"  value="" />
                    492: <input type="hidden" name="blackwhite"  value="" />
1.35      www       493: <input type="hidden" name="remember"  value="" />
1.33      www       494: ENDNOOPT
1.16      www       495: }
1.98      raeburn   496:     my $logintitle;
                    497:     if ($loginheader eq 'text') {
                    498:         $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2">&nbsp;&nbsp;&nbsp;<b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';
                    499:     } else {
                    500:         $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.
                    501:                       &mt('User Authentication').'" /></td>';
                    502:     }
1.16      www       503:     $r->print(<<ENDLOGIN);
1.14      albertel  504:      <input type="hidden" name="lextkey" value="$lextkey">
                    505:      <input type="hidden" name="uextkey" value="$uextkey">
                    506: 
                    507:      <!-- Start the sub-table for text and input alignment -->
                    508:      <table border=0 cellspacing=0 cellpadding=0>
1.98      raeburn   509:       <tr>$logintitle</tr>
1.14      albertel  510:       <tr>
1.93      www       511:        <td bgcolor="$mainbg"><br /><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="uname">$lt{'un'}</label>:</b></font></td>
1.30      www       512:        <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14      albertel  513:       </tr>
                    514:       <tr>
1.93      www       515:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="upass$now">$lt{'pw'}</label>:</b></font></td>
1.66      www       516:        <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14      albertel  517:       </tr>
                    518:       <tr>
1.93      www       519:        <td bgcolor="$mainbg"><font size=-1><b>&nbsp;&nbsp;&nbsp;<label for="udom">$lt{'dom'}</label>:</b></font></td>
1.30      www       520:        <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14      albertel  521:       </tr>
                    522:       <tr>
1.84      raeburn   523:        <td bgcolor="$mainbg">&nbsp;</td>
1.28      www       524:        <td bgcolor="$mainbg" valign="bottom" align="center">
1.14      albertel  525:         <br />
1.51      www       526:         <input type="submit" value="$lt{'log'}" />
1.14      albertel  527:        </td>
                    528:       </tr>
1.83      raeburn   529:       <tr>
                    530:        <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
1.84      raeburn   531:         $loginhelp
1.83      raeburn   532:         $forgotpw
1.101   ! raeburn   533:         $newuserlink
        !           534:         <br />
1.83      raeburn   535:        </td>
                    536:       </tr>
1.14      albertel  537:      </table>
                    538:      <!-- End sub-table -->
                    539:     </form>
1.16      www       540: ENDLOGIN
                    541:     if ($fullgraph) {
1.62      raeburn   542:         my $helpdeskscript;
1.90      raeburn   543:         my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
                    544:                                   $version,$authdomain,\$helpdeskscript);
1.16      www       545: 	$r->print(<<ENDDOCUMENT);
1.14      albertel  546:    </td>
                    547: 
                    548:    <!-- Row 4 Column 2 -->
1.19      bowersj2  549:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45      www       550: 
                    551:    <!-- Row 4 Column 3 -->
                    552: <td bgcolor="$mainbg">$announcements</td>
1.14      albertel  553: 
                    554:    <!-- Row 4 Column 4 -->
1.19      bowersj2  555:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  556:   </tr>
                    557:   <tr>
                    558: 
                    559:    <!-- Row 5 Column 1 -->
1.21      www       560:    <td bgcolor="$sidebg" valign="middle" align="left">
1.14      albertel  561:      <br />
                    562:      <table border=0 cellspacing=0 cellpadding=0>
                    563:       <tr>
1.21      www       564:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       565:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  566:        </td>
1.21      www       567:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  568:         <small><tt>&nbsp;$domain</tt></small>
                    569:        </td>
                    570:       </tr>
                    571:       <tr>
1.21      www       572:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       573:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  574:        </td>
1.21      www       575:        <td bgcolor="$sidebg" align="left" valign="top">
1.14      albertel  576:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    577:        </td>
                    578:       </tr>
                    579:       <tr>
1.21      www       580:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       581:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'load'}:&nbsp;</b></small>
1.14      albertel  582:        </td>
1.21      www       583:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       584:         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
1.42      albertel  585:        </td>
                    586:       </tr>
                    587:       <tr>
                    588:        <td bgcolor="$sidebg" align="left" valign="top">
1.52      www       589:         <small><b>&nbsp;&nbsp;&nbsp;$lt{'userload'}:&nbsp;</b></small>
1.42      albertel  590:        </td>
                    591:        <td bgcolor="$sidebg" align="left" valign="top">
1.51      www       592:         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
1.14      albertel  593:        </td>
                    594:       </tr>
                    595:      </table>
                    596:      <br />
1.60      raeburn   597:     $contactblock
1.14      albertel  598:    </td>
                    599: 
                    600:    <!-- Row 5 Column 2 -->
1.19      bowersj2  601:    <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14      albertel  602: 
                    603:    <!-- Row 5 Column 3 -->
1.21      www       604:    <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20      www       605: $domainlogo
                    606: </td>
1.14      albertel  607: 
                    608:    <!-- Row 5 Column 4 -->
1.19      bowersj2  609:    <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14      albertel  610:   </tr>
                    611:   <tr>
                    612: 
                    613:    <!-- Row 6 Column 1 -->
1.21      www       614:    <td bgcolor="$sidebg">&nbsp;</td>
1.14      albertel  615: 
                    616:    <!-- Row 6 Column 2 -->
1.19      bowersj2  617:    <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14      albertel  618: 
                    619:    <!-- Row 6 Column 3 -->
1.19      bowersj2  620:    <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14      albertel  621: 
                    622:    <!-- Row 6 Column 4 -->
1.19      bowersj2  623:    <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14      albertel  624:   </tr>
1.1       albertel  625:  </table>
1.25      bowersj2  626: 
1.59      albertel  627: <script type="text/javascript">
                    628: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  629: if ( document.client.uname ) { document.client.uname.focus(); }
                    630: </script>
1.62      raeburn   631: $helpdeskscript
1.14      albertel  632: 
1.1       albertel  633: ENDDOCUMENT
1.16      www       634: }
1.98      raeburn   635:     my %endargs = ( 'noredirectlink' => 1, );
                    636:     $r->print(&Apache::loncommon::end_page(\%endargs));
1.1       albertel  637:     return OK;
1.60      raeburn   638: }
                    639: 
                    640: sub contactdisplay {
1.90      raeburn   641:     my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   642:     my $contactblock;
1.62      raeburn   643:     my $showhelpdesk = 0;
                    644:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    645:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    646:         $showhelpdesk = 1;
                    647:     }
1.90      raeburn   648:     if ($servadm && $showadminmail) {
                    649:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;'.$$lt{'servadm'}.':</b><br />'.
                    650:                          '<tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$servadm.'</tt><br />&nbsp;<br />';
                    651:     }
1.60      raeburn   652:     if ($showhelpdesk) {
1.84      raeburn   653:         $contactblock .= '<b>&nbsp;&nbsp;&nbsp;<a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
1.75      www       654:         my $thisurl = &escape('/adm/login');
1.62      raeburn   655:         $$helpdeskscript = <<"ENDSCRIPT";
                    656: <script type="text/javascript">
                    657: function helpdesk() {
                    658:     var codedom = document.client.udom.value;
                    659:     if (codedom == '') {
                    660:         codedom = "$authdomain";
                    661:     }
                    662:     var querystr = "origurl=$thisurl&codedom="+codedom;
                    663:     document.location.href = "/adm/helpdesk?"+querystr;
                    664:     return;
                    665: }
                    666: </script>
                    667: ENDSCRIPT
1.60      raeburn   668:     }
                    669:     $contactblock .= <<"ENDBLOCK";
                    670:      &nbsp;&nbsp;&nbsp;$version
                    671: ENDBLOCK
                    672:     return $contactblock;
                    673: }
1.83      raeburn   674: 
                    675: sub forgotpwdisplay {
1.84      raeburn   676:     my (%lt) = @_;
1.83      raeburn   677:     my $prompt_for_resetpw = 1; 
                    678:     if ($prompt_for_resetpw) {
1.101   ! raeburn   679:         return '<br />&nbsp;&nbsp;&nbsp;<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br />';
1.84      raeburn   680:     }
                    681:     return;
                    682: }
                    683: 
                    684: sub loginhelpdisplay {
                    685:     my (%lt) = @_;
                    686:     my $login_help = 1;
                    687:     if ($login_help) {
                    688:         return '&nbsp;&nbsp;&nbsp;<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
1.83      raeburn   689:     }
                    690:     return;
                    691: }
1.1       albertel  692: 
1.90      raeburn   693: sub coursecatalog_link {
                    694:     my ($linkname) = @_;
                    695:     return <<"END";
                    696:      <tr>
                    697:       <td>&nbsp;</td>
                    698:       <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
                    699:      </tr>
                    700: END
                    701: }
                    702: 
1.101   ! raeburn   703: sub newuser_link {
        !           704:     my ($linkname) = @_;
        !           705:     return '&nbsp;&nbsp;&nbsp;<a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';
        !           706: }
        !           707: 
1.1       albertel  708: 1;
                    709: __END__

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