# The LearningOnline Network
# Login Screen
#
# $Id: lonlogin.pm,v 1.17 2024/04/15 23:57:21 gci Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package Apache::lonlogin;
use strict;
use Apache::Constants qw(:common);
use Apache::File();
use Apache::lonnet;
use Apache::loncommon();
use Apache::lonauth();
use Apache::lonlocal;
use Apache::migrateuser();
use lib '/home/httpd/lib/perl/';
use LONCAPA;
use HTML::Entities();
sub handler {
my $r = shift;
&Apache::loncommon::get_unprocessed_cgi
(join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
$ENV{'REDIRECT_QUERY_STRING'}),
['interface','username','domain','firsturl','localpath','localres',
'token','role','symb']);
if (!defined($env{'form.firsturl'})) {
&Apache::lonacc::get_posted_cgi($r,['firsturl']);
}
# -- check if they are a migrating user
if (defined($env{'form.token'})) {
return &Apache::migrateuser::handler($r);
}
&Apache::loncommon::no_cache($r);
&Apache::lonlocal::get_language_handle($r);
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK if $r->header_only;
# Are we re-routing?
if (-e '/home/httpd/html/lon-status/reroute.txt') {
&Apache::lonauth::reroute($r);
return OK;
}
# -------------------------------- Prevent users from attempting to login twice
my $handle = &Apache::lonnet::check_for_valid_session($r);
if ($handle=~/^publicuser\_/) {
# For "public user" - remove it, we apparently really want to login
unlink($r->dir_config('lonIDsDir')."/$handle.id");
} elsif ($handle ne '') {
# Indeed, a valid token is found
my $start_page =
&Apache::loncommon::start_page('Already logged in');
my $end_page =
&Apache::loncommon::end_page();
my $dest = '/adm/roles';
if ($env{'form.role'}) {
$dest .= '?selectrole=1&'.$env{'form.role'}.'=1';
}
if ($env{'form.symb'}) {
$dest .= ($dest =~ /\?/) ? '&' : '?';
$dest .= 'destinationurl='.&HTML::Entities::encode($env{'form.symb'},'"&<>');
}
if ($env{'form.firsturl'} ne '') {
$dest = $env{'form.firsturl'};
}
$r->print(
$start_page
.'<h1>'.&mt('You are already logged in!').'</h1>'
.'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
'<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
.'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
.$end_page
);
return OK;
}
# ---------------------------------------------------- No valid token, continue
# ---------------------------- Not possible to really login to domain "public"
if ($env{'form.domain'} eq 'public') {
$env{'form.domain'}='';
$env{'form.username'}='';
}
# ----------------------------------------------------------- Process Interface
$env{'form.interface'}=~s/\W//g;
my $textbrowsers=$r->dir_config('lonTextBrowsers');
my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
foreach (split(/\:/,$textbrowsers)) {
if ($httpbrowser=~/$_/i) {
$env{'form.interface'}='textual';
}
}
my $fullgraph=($env{'form.interface'} ne 'textual');
my $iconpath=
&Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
my $domain = &Apache::lonnet::default_login_domain();
if (($env{'form.domain'}) &&
(&Apache::lonnet::domain($env{'form.domain'},'description'))) {
$domain=$env{'form.domain'};
}
my %longname = (
GCI => 'Geoscience Concept Inventory',
SLCI => 'Science Literacy Concept Inventory',
);
my %allnums = &Apache::loncommon::get_faculty_cnums();
my ($inventory,$uc_inventory,$testdom);
if ($domain =~ /^(\w+ci)test$/) {
$inventory = $1;
$testdom = $domain;
} else {
$inventory = $domain;
$testdom = $domain.'test';
}
$uc_inventory = uc($inventory);
my $sitename; = $uc_inventory.' WebCenter';
my $shortsitename = 'WebCenter';
my $existing = 'Existing WebCenter user?';
my $sitedesc = &mt('The [_1]WebCenter[_2] is a place to comment on existing concept questions, or submit new ones, and is also a place to build and manage Concept Tests which your students will complete via the [_3]Testing Center[_2].',$longname{$inventory}.' ('.$uc_inventory.') <a href="http://'.$inventory.'.lite.msu.edu/">','</a>','<a href="http://'.$testdom.'.lite.msu.edu/adm/login">');
my $role = $r->dir_config('lonRole');
my $loadlim = $r->dir_config('lonLoadLim');
my $servadm = $r->dir_config('lonAdmEMail');
my $lonhost = $r->dir_config('lonHostID');
my $tabdir = $r->dir_config('lonTabDir');
my $include = $r->dir_config('lonIncludes');
my $expire = $r->dir_config('lonExpire');
my $version = $r->dir_config('lonVersion');
my $host_name = &Apache::lonnet::hostname($lonhost);
if ($domain =~ /^(\w+ci)test$/) {
$lonhost = $domain.'l1';
$host_name = $domain.'.lite.msu.edu';
$sitename = $inventory.' Testing Center';
$shortsitename = 'Testing Center';
$existing = 'Student with Testing Center account?';
$sitedesc = &mt('The [_1] Testing Center is used by [_2]students[_3] to complete online concept tests created by their instructors using questions available in the [_4].',$inventory,'<i>','</i>',$longname{$inventory});
}
# --------------------------------------------- Default values for login fields
my $authusername=($env{'form.username'}?$env{'form.username'}:'');
my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
# ---------------------------------------------------------- Determine own load
my $loadavg;
{
my $loadfile=Apache::File->new('/proc/loadavg');
$loadavg=<$loadfile>;
}
$loadavg =~ s/\s.*//g;
my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
my $userloadpercent=&Apache::lonnet::userload();
# ------------------------------------------------------- Do the load balancing
my $otherserver= &Apache::lonnet::absolute_url($host_name);
my $firsturl=
($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
# ---------------------------------------------------------- Are we overloaded?
if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
if ($unloaded) { $otherserver=$unloaded; }
}
# ----------------------------------------------------------- Get announcements
my $announcements=&Apache::lonnet::getannounce();
# -------------------------------------------------------- Set login parameters
my @hexstr=('0','1','2','3','4','5','6','7',
'8','9','a','b','c','d','e','f');
my $lkey='';
for (0..7) {
$lkey.=$hexstr[rand(15)];
}
my $ukey='';
for (0..7) {
$ukey.=$hexstr[rand(15)];
}
my $lextkey=hex($lkey);
if ($lextkey>2147483647) { $lextkey-=4294967296; }
my $uextkey=hex($ukey);
if ($uextkey>2147483647) { $uextkey-=4294967296; }
# -------------------------------------------------------- Store away log token
my $tokenextras;
if ($env{'form.role'}) {
$tokenextras = '&role='.&escape($env{'form.role'});
}
if ($domain !~ /^\w+citest$/) {
unless ($env{'form.symb'} eq '/adm/statistics') {
$env{'form.symb'} = '/adm/ci_info';
}
}
if ($env{'form.symb'}) {
if (!$tokenextras) {
$tokenextras = '&';
}
$tokenextras .= '&symb='.&escape($env{'form.symb'});
}
my $logtoken=Apache::lonnet::reply(
'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
$lonhost);
# ------------------- If we cannot talk to ourselves, we are in serious trouble
if ($logtoken eq 'con_lost') {
my $spares='';
my $last;
foreach my $hostid (sort
{
&Apache::lonnet::hostname($a) cmp
&Apache::lonnet::hostname($b);
}
keys(%Apache::lonnet::spareid)) {
next if ($hostid eq $lonhost);
my $hostname = &Apache::lonnet::hostname($hostid);
next if ($last eq $hostname);
$spares.='<br /><font size="+1"><a href="http://'.
$hostname.
'/adm/login?domain='.$authdomain.'">'.
$hostname.'</a>'.
' '.&mt('(preferred)').'</font>'.$/;
$last=$hostname;
}
$spares.= '<br />';
my %all_hostnames = &Apache::lonnet::all_hostnames();
foreach my $hostid (sort
{
&Apache::lonnet::hostname($a) cmp
&Apache::lonnet::hostname($b);
}
keys(%all_hostnames)) {
next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
my $hostname = &Apache::lonnet::hostname($hostid);
next if ($last eq $hostname);
$spares.='<br /><a href="http://'.
$hostname.
'/adm/login?domain='.$authdomain.'">'.
$hostname.'</a>';
$last=$hostname;
}
$r->print(
'<html>'
.'<head><title>'
.&mt('The LearningOnline Network with CAPA')
.'</title></head>'
.'<body bgcolor="#FFFFFF">'
.'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
.'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
.'<h3>'.&mt("The $sitename server is temporarily not available for login.").'</h3>'
.'</body>'
.'</html>'
);
return OK;
}
# ----------------------------------------------- Apparently we are in business
$servadm=~s/\,/\<br \/\>/g;
# ----------------------------------------------------------- Front page design
my $pgbg=
($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
my $font=
($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
my $link=
($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
my $vlink=
($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
my $alink=&Apache::loncommon::designparm('login.alink',$domain);
my $mainbg=
($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
my $sidebg=
($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
my $textcol =
($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');
my $bgcol =
($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');
my $logo=&Apache::loncommon::designparm('login.logo',$domain);
my $img=&Apache::loncommon::designparm('login.img',$domain);
my $domainlogo=&Apache::loncommon::domainlogo($domain);
my $login=&Apache::loncommon::designparm('login.login',$domain);
if ($login eq '') {
$login = $iconpath.'/'.&mt('userauthentication.gif');
}
my $showbanner = 1;
my $showmainlogo = 1;
if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
$showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
}
if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
$showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
}
my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
my $showcoursecat =
&Apache::loncommon::designparm('login.coursecatalog',$domain);
my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
my $shownewuserlink =
&Apache::loncommon::designparm('login.newuser',$domain);
my $now=time;
my $js = (<<ENDSCRIPT);
<script type="text/javascript" language="JavaScript">
// <![CDATA[
function send(caller)
{
if (caller == "newaccount") {
this.document.signup.submit();
return false;
}
if (document.client.uname.value == "" || !document.client.uname.value) {
alert("You must provide a username ");
return false;
}
if (document.client.upass$now.value == "" || !document.client.upass$now.value) {
alert("You must provide a password");
return false;
}
this.document.server.elements.uname.value
=this.document.client.elements.uname.value;
this.document.server.elements.udom.value
=this.document.client.elements.udom.value;
this.document.server.elements.imagesuppress.value
=this.document.client.elements.imagesuppress.checked;
this.document.server.elements.embedsuppress.value
=this.document.client.elements.embedsuppress.checked;
this.document.server.elements.appletsuppress.value
=this.document.client.elements.appletsuppress.checked;
this.document.server.elements.fontenhance.value
=this.document.client.elements.fontenhance.checked;
this.document.server.elements.blackwhite.value
=this.document.client.elements.blackwhite.checked;
this.document.server.elements.remember.value
=this.document.client.elements.remember.checked;
uextkey=this.document.client.elements.uextkey.value;
lextkey=this.document.client.elements.lextkey.value;
initkeys();
this.document.server.elements.upass0.value
=crypted(this.document.client.elements.upass$now.value.substr(0,15));
this.document.server.elements.upass1.value
=crypted(this.document.client.elements.upass$now.value.substr(15,15));
this.document.server.elements.upass2.value
=crypted(this.document.client.elements.upass$now.value.substr(30,15));
this.document.client.elements.uname.value='';
this.document.client.elements.upass$now.value='';
this.document.server.submit();
return false;
}
// ]]>
</script>
ENDSCRIPT
# --------------------------------------------------- Print login screen header
my %add_entries = (topmargin => "0",
leftmargin => "0",
marginheight => "0",
marginwidth => "0",
bgcolor => "$pgbg",
text => "$font",
link => "$link",
vlink => "$vlink",
alink => "$alink",
onload => "if ( document.client.uname ) { document.client.uname.focus(); }",
marginheight => "0",);
my $css_url = "/css/$domain/login.css";
$js .= "\n".'<link type="text/css" rel="stylesheet" href="'.$css_url.'">'."\n";
$r->print(&Apache::loncommon::start_page($uc_inventory.' WebCenter Login',$js,
{ 'redirect' => [$expire,'/adm/roles'],
'add_entries' => \%add_entries,
'only_body' => 1,}));
# ----------------------------------------------------------------------- Texts
my %lt=&Apache::lonlocal::texthash(
'un' => 'Username',
'pw' => 'Password',
'dom' => 'Domain',
'load' => 'Server Load',
'userload' => 'User Load',
'about' => 'About LON-CAPA',
'access' => 'Accessibility Options',
'catalog' => 'Course Catalog',
'log' => 'Log in',
'help' => 'Log-in Help',
'serv' => 'Server',
'servadm' => 'Server Administration',
'helpdesk' => 'Contact Helpdesk',
'forgotpw' => 'Forgot password?',
'newuser' => 'New User?',
'options_headline' => 'Select Accessibility Options',
'sprs_img' => 'Suppress rendering of images',
'sprs_applet' => 'Suppress Java applets',
'sprs_embed' => 'Suppress rendering of embedded multimedia',
'sprs_font' => 'Increase font size',
'sprs_blackwhite' => 'Switch to black and white mode',
'remember' => 'Remember these settings for next login',
'tbli' => 'Text-based Interface Login');
# -------------------------------------------------- Change password field name
my $forgotpw = &forgotpwdisplay(%lt);
my $loginhelp = &loginhelpdisplay(%lt);
# ---------------------------------------------------- Serve out DES JavaScript
{
my $jsh=Apache::File->new($include."/londes.js");
$r->print(<$jsh>);
}
# ---------------------------------------------------------- Serve rest of page
my $coursecatalog;
if (($showcoursecat eq '') || ($showcoursecat)) {
$coursecatalog = &coursecatalog_link($lt{'catalog'},$fullgraph);
}
my $newuserlink;
if ($shownewuserlink) {
$newuserlink = &newuser_link($lt{'newuser'});
}
if ($fullgraph) {
$r->print(<<"END_OF_BLOCK1");
<br />
<div align="center">
<table class="LC_loginbox">
<tr>
<td align="left" valign="top" width="11">
<img name="login_r1_c1" src="/images/login/$domain/r1_c1.png" width="11" height="11" border="0" alt="">
</td>
<td width="450" valign="top">
<table class="LC_loginbox_left">
<tr>
<td width="411" align="left"><br /><img src="/images/login/$domain/logo_smrnd.png" width="411" height="51" alt="$uc_inventory" align="left"></td>
</tr>
<tr>
<td>
<div align="left" style="display:block; margin-top:5px; margin-bottom:5px; margin-left:0px; margin-right:0px; width:440px; height:5px;">
<div class="divider">
</div>
</div>
</td>
</tr>
</table>
<table class="LC_loginbox_left">
<tr>
<td height="10" colspan="4"> </td>
</tr>
<tr>
<td width="10"> </td>
<td valign="top" class="bodyblue" width="430" align="left">
<span style="font-size: 18px; line-height: 22px; "><font style="font-size: 18px; line-height: 22px;"><br />New to the $sitename?</font></span><br />
<font class="bodyblue">$sitedesc<br /><br />The $shortsitename runs on <a href="http://loncapa.org/">LON-CAPA</a> - an open source freeware distributed learning content management and assessment system.</font><br /><br />
END_OF_BLOCK1
if ($domain !~ /^\w+citest$/) {
my $review;
if (ref($allnums{$domain}) eq 'HASH') {
$review = $domain.'_'.$allnums{$domain}{'review'};
}
$r->print(<<"END_OF_BLOCK2");
<font class="bodyblue"><b>Create a $uc_inventory WebCenter ID</b> – use your ID to submit comments or new content, or to create a new test. If you are already a $uc_inventory WebCenter user, please log-in.</font><br /><br /><br />
<form name="signup" method="post" action="/adm/createaccount?courseid=$review"><input type="hidden" name="process" value="signup"/>
<table class="LC_signup">
<tr>
<td align="left" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c4.png" width="11" height="11" border="0" alt=""></td>
<td> </td>
<td align="right" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c6.png" width="11" height="11" border="0" alt=""></td>
</tr>
<tr>
<td> </td>
<td align="center" valign="middle"><span style="white-space: nowrap;">New to $uc_inventory WebCenter: <a href="javascript:send('newaccount')" style="color: #ffffff">Click here to sign up</a></span></td>
<td> </td>
</tr>
<tr>
<td align="left" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c4.png" width="11" height="11" border="0" alt=""></td>
<td> </td>
<td align="right" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c6.png" width="11" height="11" border="0" alt=""></td>
</tr>
</table>
</form>
END_OF_BLOCK2
} else {
$r->print('<font class="bodyblue">'.
&mt("If you are already a $sitename user, please log-in.").' '.&mt('If not, contact your instructor to request a username and password.').
'</font><br /><br /><br />');
}
$r->print(<<"END_OF_BLOCK3");
</td>
</tr>
</table>
</td>
<td width="10"> </td>
<td valign="top">
<form name="client" method="post" onsubmit="return(send());">
<table class="LC_loginbox_right">
<tr>
<td colspan="3" height="23" class="LC_loginbox_strip"> </td>
</tr>
<tr>
<td align="left" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c4.png" width="11" height="11" border="0" alt=""></td>
<td> </td>
<td align="right" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c6.png" width="11" height="11" border="0" alt=""></td>
</tr>
<tr>
<td width="10"> </td>
<td>
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td align="right" class="bodywhite" height=50><br>
<span style="font-size: 15px; line-height: 17px; font-weight: bold;">
$existing</span>
<br />Please log-in.<br>
<hr class="login"><br /><br />
</td>
</tr>
<tr>
<td>
<table border="0" cellpadding="2" cellspacing="0">
<tr>
<td align="right" class="bodywhite"><label for="uname">$lt{'un'}</label>:</td>
<td align="right"><input type="text" name="uname" size="17" value="$authusername" /></td>
</tr>
<tr>
<td align="right" class="bodywhite"><label for="upass$now">$lt{'pw'}</label>:</td>
<td align="right"><input name="upass$now" size="17" value="" type="password"><input type="hidden" name="udom" value="$domain" /></td>
</tr>
<tr><td> </td></tr>
<tr>
<td colspan="2" align="right"><input name="signin" type="submit" value="Log-in" class=buttonwhite /></td>
</tr>
</table>
</td>
</tr>
<tr>
<td align="right" valign="top" class="bodywhite">
<br />
<br /><br />
<hr class="login" />
<br />
<a href="/adm/resetpw" style="color: #ffffff">Forgot your password?</a><br>
<br />
</td>
</tr>
</table>
</td>
<td width="9"> </td>
</tr>
<tr>
<td align="left" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c4.png" width="11" height="11" border="0" alt=""></td>
<td> </td>
<td align="right" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c6.png" width="11" height="11" border="0" alt=""></td>
</tr>
<tr>
<td colspan="3" height="10" class="LC_loginbox_strip"> </td>
</tr>
</table>
</td>
<td align="right" valign="top" width="11"><img src="/images/login/$domain/r1_c7.png" width="11" height="11" border="0" alt=""></td>
</tr>
<tr>
<td colspan="4">
<div align="left">
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="10"> </td>
<td><font size="-1">
<b>Note</b>:<br />
If log-in fails, it may be because your browser is not accepting session cookies, or javascript is disabled. <a href="http://loncapa.msu.edu/student/cookies.html">Learn more</a>.
</font>
</td>
<td width="10"> </td>
</tr>
</table>
</div>
</td>
</tr>
<tr>
<td align="left" valign="bottom" width="11"><img src="/images/login/$domain/r9_c1.png" width="11" height="11" border="0" alt=""></td>
<td colspan="3" width="698"> </td>
<td align="right" valign="bottom" width="11"><img src="/images/login/$domain/r9_c7.png" width="11" height="11" border="0" alt=""></td>
</tr>
</table>
</div>
<p> </p>
<noscript><font size='3'> <b>Please Note:</b>
Javascript must be enabled in your web browser in order to use this web site.
</font></noscript>
<p> </p>
<input type="hidden" name="imagesuppress" value="" />
<input type="hidden" name="embedsuppress" value="" />
<input type="hidden" name="appletsuppress" value="" />
<input type="hidden" name="fontenhance" value="" />
<input type="hidden" name="blackwhite" value="" />
<input type="hidden" name="remember" value="" />
END_OF_BLOCK3
} else {
$r->print(<<ENDACCESSOPTIONS);
<h1>The Learning<i>Online</i> Network with CAPA</h1>
<h2>$lt{'tbli'}</h2>$announcements
<h3>$lt{'options_headline'}</h3>
<form name="client" action="" onsubmit="return(send())">
<label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />
<label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />
<label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />
<label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />
<label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />
<br />
<input type="checkbox" name="remember" /> $lt{'remember'}
ENDACCESSOPTIONS
}
$r->print('
<input type="hidden" name="lextkey" value="'.$lextkey.'" />
<input type="hidden" name="uextkey" value="'.$uextkey.'" />
');
unless ($fullgraph) {
my $logintitle;
if ($loginheader eq 'text') {
$logintitle = '<td bgcolor="'.$bgcol.'" colspan="2"> <b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';
} else {
$logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.
&mt('User Authentication').'" /></td>';
}
my $noscript_warning='<td colspan="2" bgcolor="'.$mainbg.'">'
.'<noscript><div class="LC_warning"><font size="-1">'
.&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
.'</font></div></noscript></td>';
$r->print(<<ENDTEXTUAL);
<hr />
<table border="0" cellspacing="0" cellpadding="0">
<tr>$logintitle</tr>
<tr>$noscript_warning</tr>
<tr>
<td bgcolor="$mainbg"><br /><font size=-1><b> <label for="uname">$lt{'un'}</label>:</b></font></td>
<td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
</tr>
<tr>
<td bgcolor="$mainbg"><font size=-1><b> <label for="upass$now">$lt{'pw'}</label>:</b></font></td>
<td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
</tr>
<tr>
<td bgcolor="$mainbg"> </td>
<td bgcolor="$mainbg" valign="bottom" align="center">
<br />
<input type="submit" value="$lt{'log'}" />
<input type="hidden" name="udom" value="$domain" />
</td>
</tr>
<tr>
<td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
$loginhelp
$forgotpw
$newuserlink
$coursecatalog
<br />
</td>
</tr>
</table>
ENDTEXTUAL
}
$r->print(<<"ENDLOGIN");
</form>
<form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
<input type="hidden" name="logtoken" value="$logtoken" />
<input type="hidden" name="serverid" value="$lonhost" />
<input type="hidden" name="interface" value="$env{'form.interface'}" />
<input type="hidden" name="uname" value="" />
<input type="hidden" name="upass0" value="" />
<input type="hidden" name="upass1" value="" />
<input type="hidden" name="upass2" value="" />
<input type="hidden" name="udom" value="" />
<input type="hidden" name="imagesuppress" value="" />
<input type="hidden" name="appletsuppress" value="" />
<input type="hidden" name="embedsuppress" value="" />
<input type="hidden" name="fontenhance" value="" />
<input type="hidden" name="blackwhite" value="" />
<input type="hidden" name="remember" value="" />
<input type="hidden" name="localpath" value="$env{'form.localpath'}" />
<input type="hidden" name="localres" value="$env{'form.localres'}" />
</form>
ENDLOGIN
if ($fullgraph) {
my $helpdeskscript;
my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
$version,$authdomain,\$helpdeskscript);
}
my %endargs = ( 'noredirectlink' => 1, );
$r->print(&Apache::loncommon::end_page(\%endargs));
return OK;
}
sub contactdisplay {
my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
my $contactblock;
my $showhelpdesk = 0;
my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
$showhelpdesk = 1;
}
if ($servadm && $showadminmail) {
$contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
'<tt> '.$servadm.'</tt><br /> <br />';
}
if ($showhelpdesk) {
$contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
my $thisurl = &escape('/adm/login');
$$helpdeskscript = <<"ENDSCRIPT";
<script type="text/javascript">
// <![CDATA[
function helpdesk() {
var codedom = document.client.udom.value;
if (codedom == '') {
codedom = "$authdomain";
}
var querystr = "origurl=$thisurl&codedom="+codedom;
document.location.href = "/adm/helpdesk?"+querystr;
return;
}
// ]]>
</script>
ENDSCRIPT
}
$contactblock .= <<"ENDBLOCK";
$version
ENDBLOCK
return $contactblock;
}
sub forgotpwdisplay {
my (%lt) = @_;
my $prompt_for_resetpw = 1;
if ($prompt_for_resetpw) {
return '<br /> <a href="/adm/resetpw"><b>'.$lt{'forgotpw'}.'</b></a><br />';
}
return;
}
sub loginhelpdisplay {
my (%lt) = @_;
my $login_help = 1;
if ($login_help) {
return ' <a href="/adm/loginproblems.html"><b>'.$lt{'help'}.'</b></a>';
}
return;
}
sub coursecatalog_link {
my ($linkname,$fullgraph) = @_;
my $link = '/adm/coursecatalog';
if (!$fullgraph) {
$link.= '?interface=textual';
}
return ' <a href="/adm/coursecatalog"><b>'.$linkname.'</b></a><br />';
END
}
sub newuser_link {
my ($linkname) = @_;
return ' <a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';
}
1;
__END__
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