Annotation of loncom/auth/lonlogin.pm, revision 1.134

1.1       albertel    1: # The LearningOnline Network
                      2: # Login Screen
1.11      www         3: #
1.134   ! raeburn     4: # $Id: lonlogin.pm,v 1.133 2010/03/03 17:00:01 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: 	      $ENV{'REDIRECT_QUERY_STRING'}),
1.71      albertel   48: 	 ['interface','username','domain','firsturl','localpath','localres',
1.123     raeburn    49: 	  'token','role','symb']);
1.102     raeburn    50:     if (!defined($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();
1.125     raeburn    84:         my $dest = '/adm/roles';
                     85:         if ($env{'form.firsturl'} ne '') {
                     86:             $dest = $env{'form.firsturl'}; 
                     87:         }
1.131     jms        88:         
                     89:     my $dom = &Apache::lonnet::default_login_domain();
                     90:     my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'],$dom);
                     91:     
                     92:     my $loginhelp_page = $helpconfig{'helpsettings'}{'loginhelpurl'};
                     93:     if ($loginhelp_page eq '') {
                     94: 		$loginhelp_page = '/adm/loginproblems.html';
                     95:     }
1.100     bisitz     96: 	$r->print(
                     97:                   $start_page
1.103     bisitz     98:                  .'<h1>'.&mt('You are already logged in!').'</h1>'
1.117     hauer      99:                  .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
1.125     raeburn   100:                   '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
1.131     jms       101:                  .'<p><a href="'.$loginhelp_page.'">'.&mt('Login problems?').'</a></p>'
                    102:                  .$dom.' '.$end_page
1.100     bisitz    103:                  );
1.95      albertel  104:         return OK;
1.55      www       105:     }
                    106: 
                    107: # ---------------------------------------------------- No valid token, continue
1.16      www       108: 
1.70      www       109:  # ---------------------------- Not possible to really login to domain "public"
                    110:     if ($env{'form.domain'} eq 'public') {
                    111: 	$env{'form.domain'}='';
                    112: 	$env{'form.username'}='';
                    113:     }
1.32      www       114: # ----------------------------------------------------------- Process Interface
1.63      albertel  115:     $env{'form.interface'}=~s/\W//g;
1.16      www       116: 
1.32      www       117:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1.94      albertel  118: 
                    119:     my $iconpath= 
                    120: 	&Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
                    121: 
1.126     raeburn   122:     my $lonhost = $r->dir_config('lonHostID');
1.87      raeburn   123:     my $domain = &Apache::lonnet::default_login_domain();
1.126     raeburn   124:     if ($lonhost ne '') {
1.133     raeburn   125:         my $redirect = &check_loginvia($domain,$lonhost);
                    126:         if ($redirect) {
                    127:             $r->print($redirect);
                    128:             return OK;
                    129:         } 
1.126     raeburn   130:     }
                    131: 
1.63      albertel  132:     if (($env{'form.domain'}) && 
1.89      albertel  133: 	(&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63      albertel  134: 	$domain=$env{'form.domain'};
1.46      www       135:     }
1.1       albertel  136:     my $role    = $r->dir_config('lonRole');
                    137:     my $loadlim = $r->dir_config('lonLoadLim');
1.90      raeburn   138:     my $servadm = $r->dir_config('lonAdmEMail');
1.1       albertel  139:     my $tabdir  = $r->dir_config('lonTabDir');
1.6       www       140:     my $include = $r->dir_config('lonIncludes');
1.37      www       141:     my $expire  = $r->dir_config('lonExpire');
1.44      www       142:     my $version = $r->dir_config('lonVersion');
1.88      albertel  143:     my $host_name = &Apache::lonnet::hostname($lonhost);
1.1       albertel  144: 
1.30      www       145: # --------------------------------------------- Default values for login fields
                    146: 
1.63      albertel  147:     my $authusername=($env{'form.username'}?$env{'form.username'}:'');
                    148:     my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30      www       149: 
                    150: # ---------------------------------------------------------- Determine own load
1.1       albertel  151:     my $loadavg;
1.41      albertel  152:     {
                    153: 	my $loadfile=Apache::File->new('/proc/loadavg');
                    154: 	$loadavg=<$loadfile>;
                    155:     }
1.1       albertel  156:     $loadavg =~ s/\s.*//g;
1.57      matthew   157:     my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41      albertel  158:     my $userloadpercent=&Apache::lonnet::userload();
1.1       albertel  159: 
1.30      www       160: # ------------------------------------------------------- Do the load balancing
1.80      albertel  161:     my $otherserver= &Apache::lonnet::absolute_url($host_name);
1.31      www       162:     my $firsturl=
1.63      albertel  163:     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.97      albertel  164: # ---------------------------------------------------------- Are we overloaded?
                    165:     if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47      albertel  166:         my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
                    167: 	if ($unloaded) { $otherserver=$unloaded; }
1.1       albertel  168:     }
1.6       www       169: 
1.45      www       170: # ----------------------------------------------------------- Get announcements
                    171:     my $announcements=&Apache::lonnet::getannounce();
1.6       www       172: # -------------------------------------------------------- Set login parameters
                    173: 
                    174:     my @hexstr=('0','1','2','3','4','5','6','7',
                    175:                 '8','9','a','b','c','d','e','f');
                    176:     my $lkey='';
                    177:     for (0..7) {
                    178:         $lkey.=$hexstr[rand(15)];
                    179:     }
                    180: 
                    181:     my $ukey='';
                    182:     for (0..7) {
                    183:         $ukey.=$hexstr[rand(15)];
                    184:     }
                    185: 
                    186:     my $lextkey=hex($lkey);
1.15      www       187:     if ($lextkey>2147483647) { $lextkey-=4294967296; }
                    188: 
1.6       www       189:     my $uextkey=hex($ukey);
1.15      www       190:     if ($uextkey>2147483647) { $uextkey-=4294967296; }
                    191: 
1.31      www       192: # -------------------------------------------------------- Store away log token
1.123     raeburn   193:     my $tokenextras;
                    194:     if ($env{'form.role'}) {
                    195:         $tokenextras = '&role='.&escape($env{'form.role'});
                    196:     }
                    197:     if ($env{'form.symb'}) {
1.124     raeburn   198:         if (!$tokenextras) {
                    199:             $tokenextras = '&';
                    200:         }
1.123     raeburn   201:         $tokenextras .= '&symb='.&escape($env{'form.symb'});
                    202:     }
1.6       www       203:     my $logtoken=Apache::lonnet::reply(
1.123     raeburn   204:        'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
1.6       www       205:        $lonhost);
1.31      www       206: 
                    207: # ------------------- If we cannot talk to ourselves, we are in serious trouble
                    208: 
                    209:     if ($logtoken eq 'con_lost') {
                    210:         my $spares='';
1.64      albertel  211: 	my $last;
                    212:         foreach my $hostid (sort
                    213: 			    {
1.88      albertel  214: 				&Apache::lonnet::hostname($a) cmp
                    215: 				    &Apache::lonnet::hostname($b);
1.64      albertel  216: 			    }
                    217: 			    keys(%Apache::lonnet::spareid)) {
1.58      matthew   218:             next if ($hostid eq $lonhost);
1.88      albertel  219: 	    my $hostname = &Apache::lonnet::hostname($hostid);
                    220: 	    next if ($last eq $hostname);
1.58      matthew   221:             $spares.='<br /><font size="+1"><a href="http://'.
1.88      albertel  222:                 $hostname.
1.58      matthew   223:                 '/adm/login?domain='.$authdomain.'">'.
1.88      albertel  224:                 $hostname.'</a>'.
1.106     bisitz    225:                 ' '.&mt('(preferred)').'</font>'.$/;
1.88      albertel  226: 	    $last=$hostname;
1.58      matthew   227:         }
1.107     tempelho  228: $spares.= '<br />';
                    229: my %all_hostnames = &Apache::lonnet::all_hostnames();
                    230: foreach my $hostid (sort
                    231: 		    {
                    232: 			&Apache::lonnet::hostname($a) cmp
                    233: 			    &Apache::lonnet::hostname($b);
                    234: 		    }
                    235: 		    keys(%all_hostnames)) {
                    236:     next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
                    237:     my $hostname = &Apache::lonnet::hostname($hostid);
                    238:     next if ($last eq $hostname);
                    239:     $spares.='<br /><a href="http://'.
                    240: 	$hostname.
                    241: 	'/adm/login?domain='.$authdomain.'">'.
                    242: 	$hostname.'</a>';
                    243:     $last=$hostname;
                    244: }
                    245: $r->print(
                    246:    '<html>'
                    247:   .'<head><title>'
                    248:   .&mt('The LearningOnline Network with CAPA')
                    249:   .'</title></head>'
                    250:   .'<body bgcolor="#FFFFFF">'
                    251:   .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
                    252:   .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
                    253:   .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'
                    254:   .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'
                    255:   .$spares
                    256:   .'</body>'
                    257:   .'</html>'
                    258: );
                    259: return OK;
                    260: }
1.31      www       261: 
                    262: # ----------------------------------------------- Apparently we are in business
1.107     tempelho  263: $servadm=~s/\,/\<br \/\>/g;
1.38      www       264: 
1.21      www       265: # ----------------------------------------------------------- Front page design
1.119     tempelho  266: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
                    267: my $font=&Apache::loncommon::designparm('login.font',$domain);
                    268: my $link=&Apache::loncommon::designparm('login.link',$domain);
                    269: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
1.107     tempelho  270: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.119     tempelho  271: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
1.107     tempelho  272: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
                    273: my $img=&Apache::loncommon::designparm('login.img',$domain);
1.132     bisitz    274: my $domainlogo='<div>'.&Apache::loncommon::domainlogo($domain).'</div>';
1.107     tempelho  275: my $login=&Apache::loncommon::designparm('login.login',$domain);
                    276: if ($login eq '') {
                    277: $login = $iconpath.'/'.&mt('userauthentication.gif');
                    278: }
1.109     raeburn   279: my $showbanner = 1;
                    280: my $showmainlogo = 1;
                    281: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
                    282:     $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
                    283: }
                    284: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
                    285:     $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
                    286: }
1.107     tempelho  287: my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
                    288: my $showcoursecat =
                    289: &Apache::loncommon::designparm('login.coursecatalog',$domain);
                    290: my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
                    291: my $shownewuserlink = 
                    292: &Apache::loncommon::designparm('login.newuser',$domain);
                    293: my $now=time;
                    294: my $js = (<<ENDSCRIPT);
                    295: 
1.116     bisitz    296: <script type="text/javascript" language="JavaScript">
1.122     bisitz    297: // <![CDATA[
1.107     tempelho  298: function send()
                    299: {
                    300: this.document.server.elements.uname.value
                    301: =this.document.client.elements.uname.value;
                    302: 
                    303: this.document.server.elements.udom.value
                    304: =this.document.client.elements.udom.value;
                    305: 
                    306: uextkey=this.document.client.elements.uextkey.value;
                    307: lextkey=this.document.client.elements.lextkey.value;
                    308: initkeys();
                    309: 
                    310: this.document.server.elements.upass0.value
                    311:     =crypted(this.document.client.elements.upass$now.value.substr(0,15));
                    312: this.document.server.elements.upass1.value
                    313:     =crypted(this.document.client.elements.upass$now.value.substr(15,15));
                    314: this.document.server.elements.upass2.value
                    315:     =crypted(this.document.client.elements.upass$now.value.substr(30,15));
1.6       www       316: 
1.107     tempelho  317: this.document.client.elements.uname.value='';
                    318: this.document.client.elements.upass$now.value='';
1.6       www       319: 
1.107     tempelho  320: this.document.server.submit();
                    321: return false;
                    322: }
1.122     bisitz    323: // ]]>
1.107     tempelho  324: </script>
1.98      raeburn   325: 
1.16      www       326: ENDSCRIPT
1.6       www       327: 
1.98      raeburn   328: # --------------------------------------------------- Print login screen header
                    329: 
1.118     tempelho  330: my %add_entries = (
1.108     tempelho  331: 	       bgcolor      => "$mainbg",
1.107     tempelho  332: 	       text         => "$font",
                    333: 	       link         => "$link",
                    334: 	       vlink        => "$vlink",
                    335: 	       alink        => "$alink",);
                    336: 
                    337: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
                    338: 			       { 'redirect'       => [$expire,'/adm/roles'], 
                    339: 				 'add_entries' => \%add_entries,
                    340: 				 'only_body'   => 1,}));
1.98      raeburn   341: 
                    342: # ----------------------------------------------------------------------- Texts
                    343: 
                    344: my %lt=&Apache::lonlocal::texthash(
1.129     bisitz    345:           'un'       => 'Username',
                    346:           'pw'       => 'Password',
                    347:           'dom'      => 'Domain',
                    348:           'perc'     => 'percent',
                    349:           'load'     => 'Server Load',
                    350:           'userload' => 'User Load',
                    351:           'catalog'  => 'Course/Community Catalog',
                    352:           'log'      => 'Log in',
                    353:           'help'     => 'Log-in Help',
                    354:           'serv'     => 'Server',
                    355:           'servadm'  => 'Server Administration',
                    356:           'helpdesk' => 'Contact Helpdesk',
                    357:           'forgotpw' => 'Forgot password?',
                    358:           'newuser'  => 'New User?',
                    359:        );
1.98      raeburn   360: # -------------------------------------------------- Change password field name
1.131     jms       361: 
1.107     tempelho  362: my $forgotpw = &forgotpwdisplay(%lt);
1.132     bisitz    363: $forgotpw .= '<br />' if $forgotpw;
1.107     tempelho  364: my $loginhelp = &loginhelpdisplay(%lt);
1.132     bisitz    365: $loginhelp .= '<br />' if $loginhelp;
1.98      raeburn   366: 
                    367: # ---------------------------------------------------- Serve out DES JavaScript
1.107     tempelho  368: {
                    369: my $jsh=Apache::File->new($include."/londes.js");
                    370: $r->print(<$jsh>);
                    371: }
1.98      raeburn   372: # ---------------------------------------------------------- Serve rest of page
                    373: 
1.107     tempelho  374: $r->print(
                    375: 	  '<div class="LC_loginpage_container">');
1.6       www       376: 
1.120     foxr      377: #
                    378: #  If the loadbalancing yielded just http:// because perhaps there's no loadbalancing?
                    379: #  then just us a relative link to authenticate:
                    380: #
                    381: 
1.107     tempelho  382: $r->print(<<ENDSERVERFORM);
                    383: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33      www       384:    <input type="hidden" name="logtoken" value="$logtoken" />
                    385:    <input type="hidden" name="serverid" value="$lonhost" />
                    386:    <input type="hidden" name="uname" value="" />
1.65      www       387:    <input type="hidden" name="upass0" value="" />
                    388:    <input type="hidden" name="upass1" value="" />
                    389:    <input type="hidden" name="upass2" value="" />
1.33      www       390:    <input type="hidden" name="udom" value="" />
1.63      albertel  391:    <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
                    392:    <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14      albertel  393:   </form>
1.16      www       394: ENDSERVERFORM
1.108     tempelho  395: my $coursecatalog;
                    396: if (($showcoursecat eq '') || ($showcoursecat)) {
1.132     bisitz    397:     $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
1.108     tempelho  398: }
                    399: my $newuserlink;
                    400: if ($shownewuserlink) {
1.132     bisitz    401:     $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
1.108     tempelho  402: }
                    403: my $logintitle;
                    404: if ($loginheader eq 'text') {
1.113     tempelho  405:     $logintitle ='<h2>'.$lt{'log'}.'</h2>';
1.108     tempelho  406: } else {
                    407:     $logintitle = '<img src="'.$login.'" alt="'.
                    408:                   &mt('User Authentication').'" />';
                    409: }
                    410: 
                    411: my $noscript_warning='<noscript><span class="LC_warning"><b>'
                    412:                      .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
                    413:                     .'</b></span></noscript>';
                    414: my $helpdeskscript;
                    415: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
1.132     bisitz    416:                                    $authdomain,\$helpdeskscript);
1.107     tempelho  417: 
1.108     tempelho  418: my $loginform=(<<LFORM);
1.122     bisitz    419: <form name="client" action="" onsubmit="return(send())">
1.115     bisitz    420:   <input type="hidden" name="lextkey" value="$lextkey" />
                    421:   <input type="hidden" name="uextkey" value="$uextkey" />
1.108     tempelho  422:   <b><label for="uname">$lt{'un'}</label>:</b><br />
1.130     bisitz    423:   <input type="text" name="uname" id="uname" size="15" value="$authusername" /><br />
1.108     tempelho  424:   <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
1.130     bisitz    425:   <input type="password" name="upass$now" id="upass$now" size="15" /><br />
1.108     tempelho  426:   <b><label for="udom">$lt{'dom'}</label>:</b><br />
1.130     bisitz    427:   <input type="text" name="udom" id="udom" size="15" value="$authdomain" /><br />
1.108     tempelho  428:   <input type="submit" value="$lt{'log'}" />
                    429: </form>
                    430: LFORM
                    431: 
1.109     raeburn   432:     if ($showbanner) {
                    433:         $r->print(<<HEADER);
                    434: <!-- The LON-CAPA Header -->
1.132     bisitz    435: <div style="background:$pgbg;margin:0;width:100%;">
                    436:   <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
                    437: </div>
1.109     raeburn   438: HEADER
                    439:     }
                    440:     $r->print(<<ENDTOP);
1.118     tempelho  441: <div class="LC_loginpage_space">&nbsp;</div>
                    442: <div class="LC_loginpage_floatLeft">
1.108     tempelho  443: <div class="LC_loginpage_loginContainer">
1.112     muellerd  444:   $logintitle
                    445:    <table border="0" align="left" cellspacing="1" cellpadding="2" width="100%">
1.108     tempelho  446:       <tr>
                    447: 	   <td>
                    448: 		$loginform
                    449:            </td>
                    450:       </tr>
                    451:    </table>   	
                    452:    $noscript_warning
                    453: </div>
1.107     tempelho  454:   
                    455: <div class="LC_loginpage_loginInfo">
1.132     bisitz    456:   $loginhelp
                    457:   $forgotpw
                    458:   $contactblock
                    459:   $newuserlink
1.130     bisitz    460:   $coursecatalog
1.107     tempelho  461: </div>
1.118     tempelho  462: </div>
                    463: ENDTOP
                    464:     if ($showmainlogo) {
                    465:         $r->print(' <img src="'.$logo.'" alt="" />'."\n");
                    466:     }
                    467: $r->print(<<ENDTOP);
                    468: $announcements
                    469: $domainlogo
1.107     tempelho  470: <div class="LC_loginpage_space">&nbsp;</div>
1.108     tempelho  471: ENDTOP
                    472: 
                    473: $r->print(<<ENDDOCUMENT);
1.115     bisitz    474:      <table border="0" cellspacing="0" cellpadding="0">
1.14      albertel  475:       <tr>
1.110     muellerd  476:        <td  align="left" valign="top">
1.132     bisitz    477:         <small><b>$lt{'dom'}:&nbsp;</b></small>
1.14      albertel  478:        </td>
1.110     muellerd  479:        <td  align="left" valign="top">
1.14      albertel  480:         <small><tt>&nbsp;$domain</tt></small>
                    481:        </td>
                    482:       </tr>
                    483:       <tr>
1.110     muellerd  484:        <td  align="left" valign="top">
1.132     bisitz    485:         <small><b>$lt{'serv'}:&nbsp;</b></small>
1.14      albertel  486:        </td>
1.110     muellerd  487:        <td align="left" valign="top">
1.14      albertel  488:         <small><tt>&nbsp;$lonhost ($role)</tt></small>
                    489:        </td>
                    490:       </tr>
                    491:       <tr>
1.110     muellerd  492:        <td align="left" valign="top">
1.132     bisitz    493:         <small><b>$lt{'load'}:&nbsp;</b></small>
1.14      albertel  494:        </td>
1.110     muellerd  495:        <td align="left" valign="top">
1.51      www       496:         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
1.42      albertel  497:        </td>
                    498:       </tr>
                    499:       <tr>
1.110     muellerd  500:        <td align="left" valign="top">
1.132     bisitz    501:         <small><b>$lt{'userload'}:&nbsp;</b></small>
1.42      albertel  502:        </td>
1.110     muellerd  503:        <td align="left" valign="top">
1.51      www       504:         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
1.14      albertel  505:        </td>
                    506:       </tr>
1.132     bisitz    507:       <tr>
                    508:        <td colspan="2" align="left">
                    509:         <small>$version</small>
                    510:        </td>
                    511:       </tr>
1.14      albertel  512:      </table>
1.107     tempelho  513:  </div>
1.25      bowersj2  514: 
1.59      albertel  515: <script type="text/javascript">
1.122     bisitz    516: // <![CDATA[
1.59      albertel  517: // the if prevents the script error if the browser can not handle this
1.25      bowersj2  518: if ( document.client.uname ) { document.client.uname.focus(); }
1.122     bisitz    519: // ]]>
1.25      bowersj2  520: </script>
1.62      raeburn   521: $helpdeskscript
1.14      albertel  522: 
1.1       albertel  523: ENDDOCUMENT
1.98      raeburn   524:     my %endargs = ( 'noredirectlink' => 1, );
                    525:     $r->print(&Apache::loncommon::end_page(\%endargs));
1.1       albertel  526:     return OK;
1.60      raeburn   527: }
                    528: 
1.133     raeburn   529: sub check_loginvia {
                    530:     my ($domain,$lonhost) = @_;
                    531:     if ($domain eq '' || $lonhost eq '') {
                    532:         return;
                    533:     }
                    534:     my %domconfhash = &Apache::loncommon::get_domainconf($domain);
                    535:     my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
                    536:     my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
                    537:     my $output;
                    538:     if ($loginvia ne '') {
                    539:         my $noredirect;
                    540:         my $ip = $ENV{'REMOTE_ADDR'};
                    541:         if ($ip eq '127.0.0.1') {
                    542:             $noredirect = 1;
                    543:         } else {
                    544:             if ($loginvia_exempt ne '') {
                    545:                 my @exempt = split(',',$loginvia_exempt);
                    546:                 if (grep(/^\Q$ip\E$/,@exempt)) {
                    547:                     $noredirect = 1;
                    548:                 }
                    549:             }
                    550:         }
                    551:         unless ($noredirect) {
                    552:             my ($newhost,$path);
                    553:             if ($loginvia =~ /:/) {
                    554:                 ($newhost,$path) = split(':',$loginvia);
                    555:             } else {
                    556:                 $newhost = $loginvia;
                    557:             }
                    558:             if ($newhost ne $lonhost) {
                    559:                 if (&Apache::lonnet::hostname($newhost) ne '') {
                    560:                     $output = &redirect_page($newhost,$path);
                    561:                 }
                    562:             }
                    563:         }
                    564:     }
                    565:     return $output;
                    566: }
                    567: 
1.126     raeburn   568: sub redirect_page {
1.133     raeburn   569:     my ($desthost,$path) = @_;
1.126     raeburn   570:     my $protocol = $Apache::lonnet::protocol{$desthost};
                    571:     $protocol = 'http' if ($protocol ne 'https');
1.133     raeburn   572:     unless ($path =~ m{^/}) {
                    573:         $path = '/'.$path;
                    574:     }
                    575:     my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
1.126     raeburn   576:     if ($env{'form.firsturl'} ne '') {
                    577:         $url .='?firsturl='.$env{'form.firsturl'};
                    578:     }
                    579:     my $start_page = &Apache::loncommon::start_page('Switching Server',undef,
                    580:                                                     {'redirect' => [0,$url],});
                    581:     my $end_page   = &Apache::loncommon::end_page();
                    582:     return $start_page.$end_page;
                    583: }
                    584: 
1.60      raeburn   585: sub contactdisplay {
1.132     bisitz    586:     my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript) = @_;
1.60      raeburn   587:     my $contactblock;
1.62      raeburn   588:     my $showhelpdesk = 0;
                    589:     my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                    590:     if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
                    591:         $showhelpdesk = 1;
                    592:     }
1.90      raeburn   593:     if ($servadm && $showadminmail) {
1.130     bisitz    594:         $contactblock .= $$lt{'servadm'}.':<br />'.
                    595:                          '<tt>'.$servadm.'</tt><br />';
1.90      raeburn   596:     }
1.60      raeburn   597:     if ($showhelpdesk) {
1.114     tempelho  598:         $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
1.75      www       599:         my $thisurl = &escape('/adm/login');
1.62      raeburn   600:         $$helpdeskscript = <<"ENDSCRIPT";
                    601: <script type="text/javascript">
1.122     bisitz    602: // <![CDATA[
1.62      raeburn   603: function helpdesk() {
                    604:     var codedom = document.client.udom.value;
                    605:     if (codedom == '') {
                    606:         codedom = "$authdomain";
                    607:     }
                    608:     var querystr = "origurl=$thisurl&codedom="+codedom;
                    609:     document.location.href = "/adm/helpdesk?"+querystr;
                    610:     return;
                    611: }
1.122     bisitz    612: // ]]>
1.62      raeburn   613: </script>
                    614: ENDSCRIPT
1.60      raeburn   615:     }
                    616:     return $contactblock;
                    617: }
1.83      raeburn   618: 
                    619: sub forgotpwdisplay {
1.84      raeburn   620:     my (%lt) = @_;
1.83      raeburn   621:     my $prompt_for_resetpw = 1; 
                    622:     if ($prompt_for_resetpw) {
1.107     tempelho  623:         return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
1.84      raeburn   624:     }
                    625:     return;
                    626: }
                    627: 
                    628: sub loginhelpdisplay {
                    629:     my (%lt) = @_;
                    630:     my $login_help = 1;
                    631:     if ($login_help) {
1.131     jms       632:     	my $dom = &Apache::lonnet::default_login_domain();
                    633: 		my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'],$dom);
                    634: 		my $loginhelp_url = $helpconfig{'helpsettings'}{'loginhelpurl'};
                    635: 		if ($loginhelp_url ne '') {
                    636:         	return '<a href="'.$loginhelp_url.'">'.$lt{'help'}.'</a>';
                    637:         } else {
                    638:         	return '<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a>';
                    639:        	}
1.83      raeburn   640:     }
                    641:     return;
                    642: }
1.1       albertel  643: 
1.90      raeburn   644: sub coursecatalog_link {
                    645:     my ($linkname) = @_;
                    646:     return <<"END";
1.134   ! raeburn   647:       <span class="LC_nobreak"><a href="/adm/coursecatalog">$linkname</a></span>
1.90      raeburn   648: END
                    649: }
                    650: 
1.101     raeburn   651: sub newuser_link {
                    652:     my ($linkname) = @_;
1.130     bisitz    653:     return '<a href="/adm/createaccount">'.$linkname.'</a>';
1.101     raeburn   654: }
                    655: 
1.1       albertel  656: 1;
                    657: __END__

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