version 1.20, 2002/08/26 12:47:28
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version 1.176, 2018/12/05 03:29:05
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# The LearningOnline Network |
# The LearningOnline Network
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# Login Screen |
# Login Screen
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# |
#
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# $Id$ |
# $Id$
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# |
#
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# Copyright Michigan State University Board of Trustees |
# Copyright Michigan State University Board of Trustees
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# |
#
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
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# |
#
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# LON-CAPA is free software; you can redistribute it and/or modify |
# LON-CAPA is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by |
# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or |
# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version. |
# (at your option) any later version.
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# |
#
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# LON-CAPA is distributed in the hope that it will be useful, |
# LON-CAPA is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details. |
# GNU General Public License for more details.
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# |
#
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# You should have received a copy of the GNU General Public License |
# You should have received a copy of the GNU General Public License
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# along with LON-CAPA; if not, write to the Free Software |
# along with LON-CAPA; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# |
#
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# /home/httpd/html/adm/gpl.txt |
# /home/httpd/html/adm/gpl.txt
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# |
#
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/
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# |
#
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# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14, |
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# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9, |
package Apache::lonlogin;
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# 1/17/01 Gerd Kortemeyer |
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# |
use strict;
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# 2/7/02,2/8,2/12,2/14,2/15,2/19 Josh Brunskole |
use Apache::Constants qw(:common);
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# |
use Apache::File ();
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# 7/10/02 Jeremy Bowers |
use Apache::lonnet;
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use Apache::loncommon();
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package Apache::lonlogin; |
use Apache::lonauth();
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use Apache::lonlocal;
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use strict; |
use Apache::migrateuser();
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use Apache::Constants qw(:common); |
use lib '/home/httpd/lib/perl/';
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use Apache::File (); |
use LONCAPA qw(:DEFAULT :match);
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use Apache::lonnet(); |
use CGI::Cookie();
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use Apache::loncommon(); |
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sub handler {
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sub handler { |
my $r = shift;
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my $r = shift; |
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$r->content_type('text/html'); |
&Apache::loncommon::get_unprocessed_cgi
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&Apache::loncommon::no_cache($r); |
(join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
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$r->send_http_header; |
$ENV{'REDIRECT_QUERY_STRING'}),
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return OK if $r->header_only; |
['interface','username','domain','firsturl','localpath','localres',
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'token','role','symb','iptoken','btoken']);
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if (!defined($env{'form.firsturl'})) {
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&Apache::loncommon::get_unprocessed_cgi |
&Apache::lonacc::get_posted_cgi($r,['firsturl']);
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($ENV{'QUERY_STRING'},['interface']); |
}
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if (!defined($env{'form.firsturl'})) {
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$ENV{'form.interface'}=~s/\W//g; |
if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) {
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$env{'form.firsturl'} = $ENV{'REDIRECT_URL'};
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my $fullgraph=($ENV{'form.interface'} ne 'textual'); |
}
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}
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my $iconpath= $r->dir_config('lonIconsURL'); |
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my $domain = $r->dir_config('lonDefDomain'); |
# -- check if they are a migrating user
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my $role = $r->dir_config('lonRole'); |
if (defined($env{'form.token'})) {
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my $loadlim = $r->dir_config('lonLoadLim'); |
return &Apache::migrateuser::handler($r);
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my $servadm = $r->dir_config('lonAdmEMail'); |
}
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my $sysadm = $r->dir_config('lonSysEMail'); |
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my $lonhost = $r->dir_config('lonHostID'); |
# For "public user" - remove any exising "public" cookie, as user really wants to log-in
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my $tabdir = $r->dir_config('lonTabDir'); |
my ($handle,$lonidsdir,$expirepub,$userdom);
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my $include = $r->dir_config('lonIncludes'); |
$lonidsdir=$r->dir_config('lonIDsDir');
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unless ($r->header_only) {
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my $loadavg; |
$handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom);
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{ |
if ($handle ne '') {
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my $loadfile=Apache::File->new('/proc/loadavg'); |
if ($handle=~/^publicuser\_/) {
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$loadavg=<$loadfile>; |
unlink($r->dir_config('lonIDsDir')."/$handle.id");
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} |
undef($handle);
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$loadavg =~ s/\s.*//g; |
undef($userdom);
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my $loadpercent=100*$loadavg/$loadlim; |
$expirepub = 1;
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}
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my $otherserver='http://'.$ENV{'SERVER_NAME'}; |
}
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my $firsturl=$ENV{'request.firsturl'}; |
}
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# ---------------------------------------- Are we access server and overloaded? |
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if (($role eq 'access') && ($loadpercent>100.0)) { |
&Apache::loncommon::no_cache($r);
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$otherserver=Apache::lonnet::spareserver(); |
&Apache::lonlocal::get_language_handle($r);
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} |
&Apache::loncommon::content_type($r,'text/html');
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if ($expirepub) {
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# -------------------------------------------------------- Set login parameters |
my $c = new CGI::Cookie(-name => 'lonPubID',
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-value => '',
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my @hexstr=('0','1','2','3','4','5','6','7', |
-expires => '-10y',);
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'8','9','a','b','c','d','e','f'); |
$r->header_out('Set-cookie' => $c);
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my $lkey=''; |
} elsif (($handle eq '') && ($userdom ne '')) {
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for (0..7) { |
my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
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$lkey.=$hexstr[rand(15)]; |
foreach my $name (keys(%cookies)) {
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} |
next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
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my $c = new CGI::Cookie(-name => $name,
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my $ukey=''; |
-value => '',
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for (0..7) { |
-expires => '-10y',);
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$ukey.=$hexstr[rand(15)]; |
$r->headers_out->add('Set-cookie' => $c);
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} |
}
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}
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my $lextkey=hex($lkey); |
$r->send_http_header;
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if ($lextkey>2147483647) { $lextkey-=4294967296; } |
return OK if $r->header_only;
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my $uextkey=hex($ukey); |
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if ($uextkey>2147483647) { $uextkey-=4294967296; } |
# Are we re-routing?
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my $londocroot = $r->dir_config('lonDocRoot');
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my $logtoken=Apache::lonnet::reply( |
if (-e "$londocroot/lon-status/reroute.txt") {
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'tmpput:'.$ukey.$lkey.'&'.$firsturl, |
&Apache::lonauth::reroute($r);
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$lonhost); |
return OK;
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my $domainlogo=&Apache::loncommon::domainlogo(); |
}
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# --------------------------------------------------- Print login screen header |
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$r->print(<<ENDHEADER); |
my $lonhost = $r->dir_config('lonHostID');
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<html> |
$env{'form.firsturl'} =~ s/(`)/'/g;
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<head> |
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<title>The LearningOnline Network with CAPA Login</title> |
# Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
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</head> |
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ENDHEADER |
my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1);
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# ---------------------------------------------------- Serve out DES JavaScript |
if ($found_server) {
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{ |
my $hostname = &Apache::lonnet::hostname($found_server);
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my $jsh=Apache::File->new($include."/londes.js"); |
if ($hostname ne '') {
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$r->print(<$jsh>); |
my $protocol = $Apache::lonnet::protocol{$found_server};
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} |
$protocol = 'http' if ($protocol ne 'https');
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# ---------------------------------------------------------- Serve rest of page |
my $dest = '/adm/roles';
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$r->print(<<ENDSCRIPT); |
if ($env{'form.firsturl'} ne '') {
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$dest = $env{'form.firsturl'};
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<body bgcolor="#006600" text="#000000" link="#999999" vlink="#999999" |
}
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onLoad="init();" topmargin=0 leftmargin=0 marginwidth=0 marginheight=0> |
my %info = (
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balcookie => $lonhost.':'.$balancer_cookie,
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<script language="JavaScript"> |
);
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function send() |
my $balancer_token = &Apache::lonnet::tmpput(\%info,$found_server);
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{ |
if ($balancer_token) {
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this.document.server.elements.uname.value |
$dest .= (($dest=~/\?/)?'&;':'?') . 'btoken='.$balancer_token;
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=this.document.client.elements.uname.value; |
}
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my $url = $protocol.'://'.$hostname.$dest;
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this.document.server.elements.udom.value |
my $start_page =
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=this.document.client.elements.udom.value; |
&Apache::loncommon::start_page('Switching Server ...',undef,
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{'redirect' => [0,$url],});
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uextkey=this.document.client.elements.uextkey.value; |
my $end_page = &Apache::loncommon::end_page();
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lextkey=this.document.client.elements.lextkey.value; |
$r->print($start_page.$end_page);
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initkeys(); |
return OK;
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}
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this.document.server.elements.upass.value |
}
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=crypted(this.document.client.elements.upass.value); |
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#
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this.document.server.submit(); |
# Check if a LON-CAPA load balancer sent user here because user's browser sent
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return false; |
# it a balancer cookie for an active session on this server.
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} |
#
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</script> |
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ENDSCRIPT |
my $balcookie;
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if ($env{'form.btoken'}) {
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if ($fullgraph) { |
my %info = &Apache::lonnet::tmpget($env{'form.btoken'});
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$r->print( |
$balcookie = $info{'balcookie'};
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'<table width="100%" cellpadding=0 cellspacing=0 border=0>'); |
&Apache::lonnet::tmpdel($env{'form.btoken'});
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} |
delete($env{'form.btoken'});
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}
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$r->print(<<ENDSERVERFORM); |
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<form name="server" action="$otherserver/adm/authenticate" method="post" target="_top"> |
#
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<input type=hidden name=logtoken value="$logtoken"> |
# If browser sent an old cookie for which the session file had been removed
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<input type=hidden name=serverid value="$lonhost"> |
# check if configuration for user's domain has a portal URL set. If so
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<input type=hidden name=interface value="$ENV{'form.interface'}"> |
# switch user's log-in to the portal.
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<input type=hidden name=uname value=""> |
#
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<input type=hidden name=upass value=""> |
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<input type=hidden name=udom value=""> |
if (($handle eq '') && ($userdom ne '')) {
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</form> |
my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom);
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ENDSERVERFORM |
if ($domdefaults{'portal_def'} =~ /^https?\:/) {
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if ($fullgraph) { $r->print(<<ENDTOP); |
my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
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<!-- The LON-CAPA Header --> |
{'redirect' => [0,$domdefaults{'portal_def'}],});
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<tr> |
my $end_page = &Apache::loncommon::end_page();
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$r->print($start_page.$end_page);
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<!-- Row 1 Columns 2-4 --> |
return OK;
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<td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="#006600"><img src="$iconpath/header.gif" border=0 alt="The Learning Online Network with CAPA" /></td> |
}
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</tr> |
}
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<!-- The gray bar that starts the two table frames --> |
# -------------------------------- Prevent users from attempting to login twice
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<tr> |
if ($handle ne '') {
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&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
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<!-- Row 2 Column 1 --> |
my $start_page =
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<td width=182 height=27 bgcolor="#cccccc"> </td> |
&Apache::loncommon::start_page('Already logged in');
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my $end_page =
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<!-- Row 2 Column 2 --> |
&Apache::loncommon::end_page();
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<td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td> |
my $dest = '/adm/roles';
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if ($env{'form.firsturl'} ne '') {
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<!-- Row 2 Column 3 --> |
$dest = $env{'form.firsturl'};
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<td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td> |
}
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$r->print(
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<!-- Row 2 Column 4 --> |
$start_page
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<td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td> |
.'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
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</tr> |
.'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
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<tr> |
'<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
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.$end_page
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<!-- A cell that will hold the 'access' and 'about' buttons --> |
);
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<!-- Row 3 Column 1 --> |
return OK;
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<td valign="top" height=60 align="center" bgcolor="#cccccc"> |
}
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<a href="/adm/login?interface=textual"><img src="$iconpath/accessbutton.gif" border=0 alt="Accessibility Options" /></a> |
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<br /> |
# ---------------------------------------------------- No valid token, continue
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<a href="/adm/about.html"><img src="$iconpath/aboutlon.gif" border=0 alt="About LON-CAPA" /></a> |
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</td> |
# ---------------------------- Not possible to really login to domain "public"
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if ($env{'form.domain'} eq 'public') {
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<!-- The shaded space between the two main columns --> |
$env{'form.domain'}='';
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<!-- Row 3 Column 2 --> |
$env{'form.username'}='';
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<td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> |
}
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<!-- The right main column holding the large LON-CAPA logo--> |
# ------ Is this page requested because /adm/migrateuser detected an IP change?
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<!-- Rows 3-4 Column 3 --> |
my %sessiondata;
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<td align="center" valign="top" width="100%" height="100%" rowspan=2 bgcolor="#ffffff"> |
if ($env{'form.iptoken'}) {
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<center> |
%sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
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<img src="$iconpath/loncapalogo.gif" alt="" /> |
unless ($sessiondata{'sessionserver'}) {
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</center> |
my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'});
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</td> |
delete($env{'form.iptoken'});
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}
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<!-- Row 3 Column 4 --> |
}
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<td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> |
# ----------------------------------------------------------- Process Interface
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</tr> |
$env{'form.interface'}=~s/\W//g;
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<tr> |
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(undef,undef,undef,undef,undef,undef,my $clientmobile) =
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<!-- The entry form --> |
&Apache::loncommon::decode_user_agent();
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<!-- Row 4 Column 1 --> |
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<td align="center" valign="middle" bgcolor="#cccccc"> |
my $iconpath=
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ENDTOP |
&Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
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} |
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$r->print(<<ENDLOGIN); |
my $domain = &Apache::lonnet::default_login_domain();
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<form name="client" onsubmit="return(send())"> |
my $defdom = $domain;
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<input type="hidden" name="lextkey" value="$lextkey"> |
if ($lonhost ne '') {
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<input type="hidden" name="uextkey" value="$uextkey"> |
unless ($sessiondata{'sessionserver'}) {
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my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie);
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<!-- Start the sub-table for text and input alignment --> |
if ($redirect) {
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<table border=0 cellspacing=0 cellpadding=0> |
$r->print($redirect);
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<tr><td bgcolor="#cccccc" colspan=2><img src="$iconpath/userauthentication.gif" alt="User Authentication" /></td></tr> |
return OK;
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<tr> |
}
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<td bgcolor="#ffffff"><br /><font size=-1><b> User Name:</b></font></td> |
}
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<td bgcolor="#ffffff"><br /><input type="text" name="uname" size="10" /></td> |
}
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</tr> |
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<tr> |
if (($sessiondata{'domain'}) &&
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<td bgcolor="#ffffff"><font size=-1><b> Password:</b></font></td> |
(&Apache::lonnet::domain($sessiondata{'domain'},'description'))) {
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<td bgcolor="#ffffff"><input type="password" name="upass" size="10" /></td> |
$domain=$sessiondata{'domain'};
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</tr> |
} elsif (($env{'form.domain'}) &&
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<tr> |
(&Apache::lonnet::domain($env{'form.domain'},'description'))) {
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<td bgcolor="#ffffff"><font size=-1><b> Domain:</b></font></td> |
$domain=$env{'form.domain'};
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<td bgcolor="#ffffff"><input type="text" name="udom" size="10" value=$domain /></td> |
}
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</tr> |
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<tr> |
my $role = $r->dir_config('lonRole');
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<td bgcolor="#ffffff" valign="bottom" align="center" colspan=2> |
my $loadlim = $r->dir_config('lonLoadLim');
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<br /> |
my $uloadlim= $r->dir_config('lonUserLoadLim');
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<input type="submit" value="Log In" /> |
my $servadm = $r->dir_config('lonAdmEMail');
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</td> |
my $tabdir = $r->dir_config('lonTabDir');
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</tr> |
my $include = $r->dir_config('lonIncludes');
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</table> |
my $expire = $r->dir_config('lonExpire');
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<!-- End sub-table --> |
my $version = $r->dir_config('lonVersion');
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</form> |
my $host_name = &Apache::lonnet::hostname($lonhost);
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ENDLOGIN |
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if ($fullgraph) { |
# --------------------------------------------- Default values for login fields
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$r->print(<<ENDDOCUMENT); |
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</td> |
my ($authusername,$authdomain);
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if ($sessiondata{'username'}) {
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<!-- Row 4 Column 2 --> |
$authusername=$sessiondata{'username'};
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<td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> |
} else {
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$env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
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<!-- Row 4 Column 4 --> |
$authusername=($env{'form.username'}?$env{'form.username'}:'');
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<td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> |
}
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</tr> |
if ($sessiondata{'domain'}) {
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<tr> |
$authdomain=$sessiondata{'domain'};
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} else {
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<!-- Row 5 Column 1 --> |
$env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
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<td bgcolor="#cccccc" valign="middle" align="left"> |
$authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
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<br /> |
}
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<table border=0 cellspacing=0 cellpadding=0> |
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<tr> |
# ---------------------------------------------------------- Determine own load
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<td bgcolor="#cccccc" align="left" valign="top"> |
my $loadavg;
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<small><b> Domain: </b></small> |
{
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</td> |
my $loadfile=Apache::File->new('/proc/loadavg');
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<td bgcolor="#cccccc" align="left" valign="top"> |
$loadavg=<$loadfile>;
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<small><tt> $domain</tt></small> |
}
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</td> |
$loadavg =~ s/\s.*//g;
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</tr> |
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<tr> |
my ($loadpercent,$userloadpercent);
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<td bgcolor="#cccccc" align="left" valign="top"> |
if ($loadlim) {
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<small><b> Server: </b></small> |
$loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
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</td> |
}
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<td bgcolor="#cccccc" align="left" valign="top"> |
if ($uloadlim) {
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<small><tt> $lonhost ($role)</tt></small> |
$userloadpercent=&Apache::lonnet::userload();
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</td> |
}
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</tr> |
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<tr> |
my $firsturl=
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<td bgcolor="#cccccc" align="left" valign="top"> |
($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
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<small><b> Load: </b></small> |
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</td> |
# ----------------------------------------------------------- Get announcements
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<td bgcolor="#cccccc" align="left" valign="top"> |
my $announcements=&Apache::lonnet::getannounce();
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<small><tt> $loadpercent percent</tt></small> |
# -------------------------------------------------------- Set login parameters
|
</td> |
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</tr> |
my @hexstr=('0','1','2','3','4','5','6','7',
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</table> |
'8','9','a','b','c','d','e','f');
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<br /> |
my $lkey='';
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<small> |
for (0..7) {
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<b> System Administration:</b><br /> |
$lkey.=$hexstr[rand(15)];
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<tt> $sysadm</tt><br /> |
}
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<b> Server Administration:</b><br /> |
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<tt> $servadm<br /> </tt> |
my $ukey='';
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</small> |
for (0..7) {
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</td> |
$ukey.=$hexstr[rand(15)];
|
|
}
|
<!-- Row 5 Column 2 --> |
|
<td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> |
my $lextkey=hex($lkey);
|
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if ($lextkey>2147483647) { $lextkey-=4294967296; }
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<!-- Row 5 Column 3 --> |
|
<td width="100%" valign="bottom" bgcolor="#ffffff"> |
my $uextkey=hex($ukey);
|
$domainlogo |
if ($uextkey>2147483647) { $uextkey-=4294967296; }
|
</td> |
|
|
# -------------------------------------------------------- Store away log token
|
<!-- Row 5 Column 4 --> |
my $tokenextras;
|
<td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> |
if ($env{'form.role'}) {
|
</tr> |
$tokenextras = '&role='.&escape($env{'form.role'});
|
<tr> |
}
|
|
if ($env{'form.symb'}) {
|
<!-- Row 6 Column 1 --> |
if (!$tokenextras) {
|
<td bgcolor="#cccccc"> </td> |
$tokenextras = '&';
|
|
}
|
<!-- Row 6 Column 2 --> |
$tokenextras .= '&symb='.&escape($env{'form.symb'});
|
<td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td> |
}
|
|
if ($env{'form.iptoken'}) {
|
<!-- Row 6 Column 3 --> |
if (!$tokenextras) {
|
<td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td> |
$tokenextras = '&&';
|
|
}
|
<!-- Row 6 Column 4 --> |
$tokenextras .= '&iptoken='.&escape($env{'form.iptoken'});
|
<td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td> |
}
|
</tr> |
my $logtoken=Apache::lonnet::reply(
|
</table> |
'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
|
|
$lonhost);
|
ENDDOCUMENT |
|
} |
# -- If we cannot talk to ourselves, or hostID does not map to a hostname
|
$r->print('</body></html>'); |
# we are in serious trouble
|
return OK; |
|
} |
if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
|
|
if ($logtoken eq 'no_such_host') {
|
1; |
&Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
|
__END__ |
}
|
|
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 $hostname) || ($hostname eq ''));
|
|
$spares.='<br /><font size="+1"><a href="http://'.
|
|
$hostname.
|
|
'/adm/login?domain='.$authdomain.'">'.
|
|
$hostname.'</a>'.
|
|
' '.&mt('(preferred)').'</font>'.$/;
|
|
$last=$hostname;
|
|
}
|
|
if ($spares) {
|
|
$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 $hostname) || ($hostname eq ''));
|
|
$spares.='<br /><a href="http://'.
|
|
$hostname.
|
|
'/adm/login?domain='.$authdomain.'">'.
|
|
$hostname.'</a>';
|
|
$last=$hostname;
|
|
}
|
|
$r->print(
|
|
'<html>'
|
|
.'<head><title>'
|
|
.&mt('The LearningOnline Network with CAPA')
|
|
.'</title></head>'
|
|
.'<body bgcolor="#FFFFFF">'
|
|
.'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
|
|
.'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
|
|
.'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
|
|
if ($spares) {
|
|
$r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
|
|
.'</p>'
|
|
.$spares);
|
|
}
|
|
$r->print('</body>'
|
|
.'</html>'
|
|
);
|
|
return OK;
|
|
}
|
|
|
|
# ----------------------------------------------- Apparently we are in business
|
|
$servadm=~s/\,/\<br \/\>/g;
|
|
|
|
# ----------------------------------------------------------- Front page design
|
|
my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
|
|
my $font=&Apache::loncommon::designparm('login.font',$domain);
|
|
my $link=&Apache::loncommon::designparm('login.link',$domain);
|
|
my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
|
|
my $alink=&Apache::loncommon::designparm('login.alink',$domain);
|
|
my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
|
|
my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
|
|
my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
|
|
my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
|
|
my $logo=&Apache::loncommon::designparm('login.logo',$domain);
|
|
my $img=&Apache::loncommon::designparm('login.img',$domain);
|
|
my $domainlogo=&Apache::loncommon::domainlogo($domain);
|
|
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 $showadminmail;
|
|
my @possdoms = &Apache::lonnet::current_machine_domains();
|
|
if (grep(/^\Q$domain\E$/,@possdoms)) {
|
|
$showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
|
|
}
|
|
my $showcoursecat =
|
|
&Apache::loncommon::designparm('login.coursecatalog',$domain);
|
|
my $shownewuserlink =
|
|
&Apache::loncommon::designparm('login.newuser',$domain);
|
|
my $showhelpdesk =
|
|
&Apache::loncommon::designparm('login.helpdesk',$domain);
|
|
my $now=time;
|
|
my $js = (<<ENDSCRIPT);
|
|
|
|
<script type="text/javascript" language="JavaScript">
|
|
// <![CDATA[
|
|
function send()
|
|
{
|
|
this.document.server.elements.uname.value
|
|
=this.document.client.elements.uname.value;
|
|
|
|
this.document.server.elements.udom.value
|
|
=this.document.client.elements.udom.value;
|
|
|
|
uextkey=this.document.client.elements.uextkey.value;
|
|
lextkey=this.document.client.elements.lextkey.value;
|
|
initkeys();
|
|
|
|
if(this.document.server.action.substr(0,5) === 'http:'){
|
|
this.document.server.elements.upass0.value
|
|
=getCrypted(this.document.client.elements.upass$now.value);
|
|
} else {
|
|
this.document.server.elements.upass0.value
|
|
=this.document.client.elements.upass$now.value;
|
|
}
|
|
|
|
this.document.client.elements.uname.value='';
|
|
this.document.client.elements.upass$now.value='';
|
|
|
|
this.document.server.submit();
|
|
return false;
|
|
}
|
|
|
|
function enableInput() {
|
|
this.document.client.elements.upass$now.removeAttribute("readOnly");
|
|
this.document.client.elements.uname.removeAttribute("readOnly");
|
|
this.document.client.elements.udom.removeAttribute("readOnly");
|
|
return;
|
|
}
|
|
|
|
// ]]>
|
|
</script>
|
|
|
|
ENDSCRIPT
|
|
|
|
# --------------------------------------------------- Print login screen header
|
|
|
|
my %add_entries = (
|
|
bgcolor => "$mainbg",
|
|
text => "$font",
|
|
link => "$link",
|
|
vlink => "$vlink",
|
|
alink => "$alink",
|
|
onload => 'javascript:enableInput();',);
|
|
|
|
my ($lonhost_in_use,$headextra,$headextra_exempt,@hosts,%defaultdomconf);
|
|
@hosts = &Apache::lonnet::current_machine_ids();
|
|
$lonhost_in_use = $lonhost;
|
|
if (@hosts > 1) {
|
|
foreach my $hostid (@hosts) {
|
|
if (&Apache::lonnet::host_domain($hostid) eq $defdom) {
|
|
$lonhost_in_use = $hostid;
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
%defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
|
|
$headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use};
|
|
$headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use};
|
|
if ($headextra) {
|
|
my $omitextra;
|
|
if ($headextra_exempt ne '') {
|
|
my @exempt = split(',',$headextra_exempt);
|
|
my $ip = $ENV{'REMOTE_ADDR'};
|
|
if (grep(/^\Q$ip\E$/,@exempt)) {
|
|
$omitextra = 1;
|
|
}
|
|
}
|
|
unless ($omitextra) {
|
|
my $confname = $defdom.'-domainconfig';
|
|
if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) {
|
|
my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
|
|
unless ($extra eq '-1') {
|
|
$js .= "\n".$extra."\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
|
|
{ 'redirect' => [$expire,'/adm/roles'],
|
|
'add_entries' => \%add_entries,
|
|
'only_body' => 1,}));
|
|
|
|
# ----------------------------------------------------------------------- Texts
|
|
|
|
my %lt=&Apache::lonlocal::texthash(
|
|
'un' => 'Username',
|
|
'pw' => 'Password',
|
|
'dom' => 'Domain',
|
|
'perc' => 'percent',
|
|
'load' => 'Server Load',
|
|
'userload' => 'User Load',
|
|
'catalog' => 'Course/Community Catalog',
|
|
'log' => 'Log in',
|
|
'help' => 'Log-in Help',
|
|
'serv' => 'Server',
|
|
'servadm' => 'Server Administration',
|
|
'helpdesk' => 'Contact Helpdesk',
|
|
'forgotpw' => 'Forgot password?',
|
|
'newuser' => 'New User?',
|
|
);
|
|
# -------------------------------------------------- Change password field name
|
|
|
|
my $forgotpw = &forgotpwdisplay(%lt);
|
|
$forgotpw .= '<br />' if $forgotpw;
|
|
my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
|
|
if ($loginhelp) {
|
|
$loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
|
|
}
|
|
|
|
# ---------------------------------------------------- Serve out DES JavaScript
|
|
{
|
|
my $jsh=Apache::File->new($include."/londes.js");
|
|
$r->print(<$jsh>);
|
|
}
|
|
# ---------------------------------------------------------- Serve rest of page
|
|
|
|
$r->print(
|
|
'<div class="LC_Box"'
|
|
.' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
|
|
);
|
|
|
|
$r->print(<<ENDSERVERFORM);
|
|
<form name="server" action="/adm/authenticate" method="post" target="_top">
|
|
<input type="hidden" name="logtoken" value="$logtoken" />
|
|
<input type="hidden" name="serverid" value="$lonhost" />
|
|
<input type="hidden" name="uname" value="" />
|
|
<input type="hidden" name="upass0" value="" />
|
|
<input type="hidden" name="udom" value="" />
|
|
<input type="hidden" name="localpath" value="$env{'form.localpath'}" />
|
|
<input type="hidden" name="localres" value="$env{'form.localres'}" />
|
|
</form>
|
|
ENDSERVERFORM
|
|
my $coursecatalog;
|
|
if (($showcoursecat eq '') || ($showcoursecat)) {
|
|
$coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
|
|
}
|
|
my $newuserlink;
|
|
if ($shownewuserlink) {
|
|
$newuserlink = &newuser_link($lt{'newuser'}).'<br />';
|
|
}
|
|
my $logintitle =
|
|
'<h2 class="LC_hcell"'
|
|
.' style="background:'.$loginbox_header_bgcol.';'
|
|
.' color:'.$loginbox_header_textcol.'">'
|
|
.$lt{'log'}
|
|
.'</h2>';
|
|
|
|
my $noscript_warning='<noscript><span class="LC_warning"><b>'
|
|
.&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
|
|
.'</b></span></noscript>';
|
|
my $helpdeskscript;
|
|
my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
|
|
$authdomain,\$helpdeskscript,
|
|
$showhelpdesk,\@possdoms);
|
|
|
|
my $mobileargs;
|
|
if ($clientmobile) {
|
|
$mobileargs = 'autocapitalize="off" autocorrect="off"';
|
|
}
|
|
my $loginform=(<<LFORM);
|
|
<form name="client" action="" onsubmit="return(send())">
|
|
<input type="hidden" name="lextkey" value="$lextkey" />
|
|
<input type="hidden" name="uextkey" value="$uextkey" />
|
|
<b><label for="uname">$lt{'un'}</label>:</b><br />
|
|
<input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
|
|
<b><label for="upass$now">$lt{'pw'}</label>:</b><br />
|
|
<input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
|
|
<b><label for="udom">$lt{'dom'}</label>:</b><br />
|
|
<input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
|
|
<input type="submit" value="$lt{'log'}" />
|
|
</form>
|
|
LFORM
|
|
|
|
if ($showbanner) {
|
|
$r->print(<<HEADER);
|
|
<!-- The LON-CAPA Header -->
|
|
<div style="background:$pgbg;margin:0;width:100%;">
|
|
<img src="$img" border="0" alt="The Learning Online Network with CAPA" class="LC_maxwidth" />
|
|
</div>
|
|
HEADER
|
|
}
|
|
$r->print(<<ENDTOP);
|
|
<div style="float:left;margin-top:0;">
|
|
<div class="LC_Box" style="background:$loginbox_bg;">
|
|
$logintitle
|
|
$loginform
|
|
$noscript_warning
|
|
</div>
|
|
|
|
<div class="LC_Box" style="padding-top: 10px;">
|
|
$loginhelp
|
|
$forgotpw
|
|
$contactblock
|
|
$newuserlink
|
|
$coursecatalog
|
|
</div>
|
|
</div>
|
|
|
|
<div>
|
|
ENDTOP
|
|
if ($showmainlogo) {
|
|
$r->print(' <img src="'.$logo.'" alt="" class="LC_maxwidth" />'."\n");
|
|
}
|
|
$r->print(<<ENDTOP);
|
|
$announcements
|
|
</div>
|
|
<hr style="clear:both;" />
|
|
ENDTOP
|
|
my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
|
|
$domainrow = <<"END";
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<small><b>$lt{'dom'}: </b></small>
|
|
</td>
|
|
<td align="left" valign="top">
|
|
<small><tt> $domain</tt></small>
|
|
</td>
|
|
</tr>
|
|
END
|
|
$serverrow = <<"END";
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<small><b>$lt{'serv'}: </b></small>
|
|
</td>
|
|
<td align="left" valign="top">
|
|
<small><tt> $lonhost ($role)</tt></small>
|
|
</td>
|
|
</tr>
|
|
END
|
|
if ($loadlim) {
|
|
$loadrow = <<"END";
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<small><b>$lt{'load'}: </b></small>
|
|
</td>
|
|
<td align="left" valign="top">
|
|
<small><tt> $loadpercent $lt{'perc'}</tt></small>
|
|
</td>
|
|
</tr>
|
|
END
|
|
}
|
|
if ($uloadlim) {
|
|
$userloadrow = <<"END";
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<small><b>$lt{'userload'}: </b></small>
|
|
</td>
|
|
<td align="left" valign="top">
|
|
<small><tt> $userloadpercent $lt{'perc'}</tt></small>
|
|
</td>
|
|
</tr>
|
|
END
|
|
}
|
|
if (($version ne '') && ($version ne '<!-- VERSION -->')) {
|
|
$versionrow = <<"END";
|
|
<tr>
|
|
<td colspan="2" align="left">
|
|
<small>$version</small>
|
|
</td>
|
|
</tr>
|
|
END
|
|
}
|
|
|
|
$r->print(<<ENDDOCUMENT);
|
|
<div style="float: left;">
|
|
<table border="0" cellspacing="0" cellpadding="0">
|
|
$domainrow
|
|
$serverrow
|
|
$loadrow
|
|
$userloadrow
|
|
$versionrow
|
|
</table>
|
|
</div>
|
|
<div style="float: right;">
|
|
$domainlogo
|
|
</div>
|
|
<br style="clear:both;" />
|
|
</div>
|
|
|
|
<script type="text/javascript">
|
|
// <![CDATA[
|
|
// the if prevents the script error if the browser can not handle this
|
|
if ( document.client.uname ) { document.client.uname.focus(); }
|
|
// ]]>
|
|
</script>
|
|
$helpdeskscript
|
|
|
|
ENDDOCUMENT
|
|
my %endargs = ( 'noredirectlink' => 1, );
|
|
$r->print(&Apache::loncommon::end_page(\%endargs));
|
|
return OK;
|
|
}
|
|
|
|
sub check_loginvia {
|
|
my ($domain,$lonhost,$lonidsdir,$balcookie) = @_;
|
|
if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') {
|
|
return;
|
|
}
|
|
my %domconfhash = &Apache::loncommon::get_domainconf($domain);
|
|
my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
|
|
my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
|
|
my $output;
|
|
if ($loginvia ne '') {
|
|
my $noredirect;
|
|
my $ip = $ENV{'REMOTE_ADDR'};
|
|
if ($ip eq '127.0.0.1') {
|
|
$noredirect = 1;
|
|
} else {
|
|
if ($loginvia_exempt ne '') {
|
|
my @exempt = split(',',$loginvia_exempt);
|
|
if (grep(/^\Q$ip\E$/,@exempt)) {
|
|
$noredirect = 1;
|
|
}
|
|
}
|
|
}
|
|
unless ($noredirect) {
|
|
my ($newhost,$path);
|
|
if ($loginvia =~ /:/) {
|
|
($newhost,$path) = split(':',$loginvia);
|
|
} else {
|
|
$newhost = $loginvia;
|
|
}
|
|
if ($newhost ne $lonhost) {
|
|
if (&Apache::lonnet::hostname($newhost) ne '') {
|
|
if ($balcookie) {
|
|
my ($balancer,$cookie) = split(/:/,$balcookie);
|
|
if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) {
|
|
my ($udom,$uname,$cookieid) = ($1,$2,$3);
|
|
unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') {
|
|
if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) {
|
|
while (my $filename=readdir($dh)) {
|
|
if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) {
|
|
my $handle = $1;
|
|
my %hash =
|
|
&Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir,
|
|
['request.balancercookie',
|
|
'user.linkedenv']);
|
|
if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") {
|
|
if (unlink("$lonidsdir/$filename")) {
|
|
if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) &&
|
|
(-l "$lonidsdir/$hash{'user.linkedenv'}.id") &&
|
|
(readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) {
|
|
unlink("$lonidsdir/$hash{'user.linkedenv'}.id");
|
|
}
|
|
}
|
|
}
|
|
last;
|
|
}
|
|
}
|
|
closedir($dh);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
$output = &redirect_page($newhost,$path);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
sub redirect_page {
|
|
my ($desthost,$path) = @_;
|
|
my $protocol = $Apache::lonnet::protocol{$desthost};
|
|
$protocol = 'http' if ($protocol ne 'https');
|
|
unless ($path =~ m{^/}) {
|
|
$path = '/'.$path;
|
|
}
|
|
my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
|
|
if ($env{'form.firsturl'} ne '') {
|
|
$url .='?firsturl='.$env{'form.firsturl'};
|
|
}
|
|
my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
|
|
{'redirect' => [0,$url],});
|
|
my $end_page = &Apache::loncommon::end_page();
|
|
return $start_page.$end_page;
|
|
}
|
|
|
|
sub contactdisplay {
|
|
my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
|
|
$possdoms) = @_;
|
|
my $contactblock;
|
|
my $origmail;
|
|
if (ref($possdoms) eq 'ARRAY') {
|
|
if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
|
|
$origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
|
|
}
|
|
}
|
|
my $requestmail =
|
|
&Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
|
|
$authdomain,$origmail);
|
|
unless ($showhelpdesk eq '0') {
|
|
if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
|
|
$showhelpdesk = 1;
|
|
} else {
|
|
$showhelpdesk = 0;
|
|
}
|
|
}
|
|
if ($servadm && $showadminmail) {
|
|
$contactblock .= $$lt{'servadm'}.':<br />'.
|
|
'<tt>'.$servadm.'</tt><br />';
|
|
}
|
|
if ($showhelpdesk) {
|
|
$contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
|
|
my $thisurl = &escape('/adm/login');
|
|
$$helpdeskscript = <<"ENDSCRIPT";
|
|
<script type="text/javascript">
|
|
// <![CDATA[
|
|
function helpdesk() {
|
|
var possdom = document.client.udom.value;
|
|
var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),'');
|
|
if (codedom == '') {
|
|
codedom = "$authdomain";
|
|
}
|
|
var querystr = "origurl=$thisurl&codedom="+codedom;
|
|
document.location.href = "/adm/helpdesk?"+querystr;
|
|
return;
|
|
}
|
|
// ]]>
|
|
</script>
|
|
ENDSCRIPT
|
|
}
|
|
return $contactblock;
|
|
}
|
|
|
|
sub forgotpwdisplay {
|
|
my (%lt) = @_;
|
|
my $prompt_for_resetpw = 1;
|
|
if ($prompt_for_resetpw) {
|
|
return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
|
|
}
|
|
return;
|
|
}
|
|
|
|
sub coursecatalog_link {
|
|
my ($linkname) = @_;
|
|
return <<"END";
|
|
<a href="/adm/coursecatalog">$linkname</a>
|
|
END
|
|
}
|
|
|
|
sub newuser_link {
|
|
my ($linkname) = @_;
|
|
return '<a href="/adm/createaccount">'.$linkname.'</a>';
|
|
}
|
|
|
|
1;
|
|
__END__
|