version 1.29, 2002/05/06 14:20:27
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version 1.124, 2012/12/18 20:52:18
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# |
# |
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15 |
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# 16/11,12/16, |
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# 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29, |
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# 7/1,7/10,10/2,10/5,10/9,10/26,10/30,11/10, |
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# 05/28,05/29 Gerd Kortemeyer |
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# 07/24 Scott Harrison |
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# 07/28,08/03 Gerd Kortemeyer |
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# 8/15 Scott Harrison |
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# 8/20 Gerd Kortemeyer |
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package Apache::lonauth; |
package Apache::lonauth; |
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use strict; |
use strict; |
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use LONCAPA; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
use Apache::File; |
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use CGI qw(:standard); |
use CGI qw(:standard); |
use CGI::Cookie(); |
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use DynaLoader; # for Crypt::DES version |
use DynaLoader; # for Crypt::DES version |
use Crypt::DES; |
use Crypt::DES; |
use Apache::lonnet(); |
use Apache::loncommon(); |
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use Apache::lonnet; |
use Apache::lonmenu(); |
use Apache::lonmenu(); |
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use Apache::createaccount; |
use Fcntl qw(:flock); |
use Fcntl qw(:flock); |
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use Apache::lonlocal; |
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use Apache::File(); |
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use HTML::Entities; |
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# ------------------------------------------------------------ Successful login |
# ------------------------------------------------------------ Successful login |
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sub success { |
sub success { |
my ($r, $username, $domain, $authhost,$lowerurl) = @_; |
my ($r, $username, $domain, $authhost, $lowerurl, $extra_env, |
my $lonids=$r->dir_config('lonIDsDir'); |
$form) = @_; |
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# See if old ID present, if so, remove |
# ------------------------------------------------------------ Get cookie ready |
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my $cookie = |
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&Apache::loncommon::init_user_environment($r, $username, $domain, |
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$authhost, $form, |
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{'extra_env' => $extra_env,}); |
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my $public=($username eq 'public' && $domain eq 'public'); |
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if ($public or $lowerurl eq 'noredirect') { return $cookie; } |
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my $filename; |
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opendir(DIR,$lonids); |
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while ($filename=readdir(DIR)) { |
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if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) { |
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unlink($lonids.'/'.$filename); |
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} |
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} |
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closedir(DIR); |
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# Give them a new cookie |
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my $cookie; |
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my $now=time; |
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$cookie="$username\_$now\_$domain\_$authhost"; |
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# Initialize roles |
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my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost); |
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# ------------------------------------ Check browser type and MathML capability |
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my @browsertype=split(/\&/,$r->dir_config("lonBrowsDet")); |
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my %mathcap=split(/\&/,$r->dir_config("lonMathML")); |
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my $httpbrowser=$ENV{"HTTP_USER_AGENT"}; |
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my $i; |
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my $clientbrowser='unknown'; |
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my $clientversion='0'; |
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my $clientmathml=''; |
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for ($i=0;$i<=$#browsertype;$i++) { |
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my ($bname,$match,$notmatch,$vreg,$minv)=split(/\:/,$browsertype[$i]); |
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if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) { |
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$clientbrowser=$bname; |
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$httpbrowser=~/$vreg/i; |
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$clientversion=$1; |
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$clientmathml=($clientversion>=$minv); |
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} |
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} |
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my $clientos='unknown'; |
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if (($httpbrowser=~/linux/i) || |
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($httpbrowser=~/unix/i) || |
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($httpbrowser=~/ux/i) || |
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($httpbrowser=~/solaris/i)) { $clientos='unix'; } |
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if (($httpbrowser=~/vax/i) || |
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($httpbrowser=~/vms/i)) { $clientos='vms'; } |
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if ($httpbrowser=~/next/i) { $clientos='next'; } |
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if (($httpbrowser=~/mac/i) || |
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($httpbrowser=~/powerpc/i)) { $clientos='mac'; } |
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if ($httpbrowser=~/win/i) { $clientos='win'; } |
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# ------------------------------------------------------------- Get environment |
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my $userenv=Apache::lonnet::reply("dump:$domain:$username:environment", |
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$authhost); |
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if (($userenv eq 'con_lost') || |
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($userenv =~ /^error\:/)) { |
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$userenv=''; |
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} |
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$userenv=~s/\&/\nenvironment\./g; |
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if ($userenv ne '') { |
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$userenv='environment.'.$userenv; |
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} |
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# --------------------------------------------------------- Write first profile |
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{ |
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my $idf=Apache::File->new(">$lonids/$cookie.id"); |
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unless (flock($idf,LOCK_EX)) { |
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&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
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'Could not obtain exclusive lock in lonauth: '.$!); |
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$idf->close(); |
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return 'error: '.$!; |
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} |
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if ($userenv ne '') { print $idf "$userenv\n"; } |
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print $idf "user.name=$username\n"; |
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print $idf "user.domain=$domain\n"; |
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print $idf "user.home=$authhost\n"; |
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print $idf "browser.type=$clientbrowser\n"; |
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print $idf "browser.version=$clientversion\n"; |
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print $idf "browser.mathml=$clientmathml\n"; |
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print $idf "browser.os=$clientos\n"; |
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print $idf "request.course.fn=\n"; |
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print $idf "request.course.uri=\n"; |
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print $idf "request.course.sec=\n"; |
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print $idf "request.role=cm\n"; |
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print $idf "request.host=$ENV{'HTTP_HOST'}\n"; |
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if ($userroles ne '') { print $idf "$userroles"; } |
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$idf->close(); |
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} |
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$ENV{'request.role'}='cm'; |
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$ENV{'browser.type'}=$clientbrowser; |
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# -------------------------------------------------------------------- Log this |
# -------------------------------------------------------------------- Log this |
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&Apache::lonnet::log($domain,$username,$authhost, |
&Apache::lonnet::log($domain,$username,$authhost, |
Line 159 sub success {
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Line 73 sub success {
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} |
} |
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# ------------------------------------------------------------ Get cookie ready |
# ------------------------------------------------------------ Get cookie ready |
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$cookie="lonID=$cookie; path=/"; |
$cookie="lonID=$cookie; path=/"; |
# -------------------------------------------------------- Menu script and info |
# -------------------------------------------------------- Menu script and info |
my $windowinfo=&Apache::lonmenu::open(); |
my $destination = $lowerurl; |
# ------------------------------------------------------------- Info for Remote |
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my $configmenu=&Apache::lonmenu::rawconfig($r); |
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# ------------------------------------------------- Output for successful login |
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$r->send_cgi_header(<<ENDHEADER); |
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Content-type: text/html |
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Set-cookie: $cookie |
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ENDHEADER |
if (defined($form->{role})) { |
$r->print(<<ENDSUCCESS); |
my $envkey = 'user.role.'.$form->{role}; |
<html> |
my $now=time; |
<head> |
my $then=$env{'user.login.time'}; |
<title>Successful Login to the LearningOnline Network with CAPA</title> |
my $refresh=$env{'user.refresh.time'}; |
<script> |
my $update=$env{'user.update.time'}; |
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if (!$update) { |
// --------------------------------------------- Checks if server frame defined |
$update = $then; |
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} |
function checkdef() { |
if (exists($env{$envkey})) { |
if ((menuloaded==0) && (tim==0)) { setTimeout('checkdef()',100); } |
my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus); |
} |
&Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where, |
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\$trolecode,\$tstatus,\$tstart,\$tend); |
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if ($tstatus eq 'is') { |
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$destination .= ($destination =~ /\?/) ? '&' : '?'; |
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my $newrole = &HTML::Entities::encode($form->{role},'"<>&'); |
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$destination .= 'selectrole=1&'.$newrole.'=1'; |
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} |
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} |
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} |
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if (defined($form->{symb})) { |
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my $destsymb = $form->{symb}; |
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$destination .= ($destination =~ /\?/) ? '&' : '?'; |
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if ($destsymb =~ /___/) { |
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# FIXME Need to deal with encrypted symbs and urls as needed. |
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my ($map,$resid,$desturl)=split(/___/,$destsymb); |
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unless ($desturl=~/^(adm|editupload|public)/) { |
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$desturl = &Apache::lonnet::clutter($desturl); |
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} |
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$desturl = &HTML::Entities::encode($desturl,'"<>&'); |
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$destsymb = &HTML::Entities::encode($destsymb,'"<>&'); |
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$destination .= '&destinationurl='.$desturl. |
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'&destsymb='.$destsymb; |
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} else { |
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$destsymb = &HTML::Entities::encode($destsymb,'"<>&'); |
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$destination .= '&destinationurl='.$destsymb; |
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} |
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} |
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if ($destination =~ m{^/adm/roles}) { |
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$destination .= ($destination =~ /\?/) ? '&' : '?'; |
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$destination .= 'source=login'; |
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} |
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// ---------------------------------------------------------- The wait function |
my $windowinfo = Apache::lonhtmlcommon::scripttag('self.name="loncapaclient";'); |
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my $header = '<meta HTTP-EQUIV="Refresh" CONTENT="0; url='.$destination.'" />'; |
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my $brcrum = [{'href' => '', |
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'text' => 'Successful Login'},]; |
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my $start_page=&Apache::loncommon::start_page('Successful Login', |
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$header, |
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{'bread_crumbs' => $brcrum,}); |
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my $end_page =&Apache::loncommon::end_page(); |
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function wait() { |
my $continuelink='<a href="'.$destination.'">'.&mt('Continue').'</a>'; |
if ((menuloaded==1) || (tim==1)) { |
# ------------------------------------------------- Output for successful login |
if (tim==0) { |
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clearTimeout(canceltim); |
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$configmenu |
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window.location='$lowerurl'; |
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} else { |
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alert("Remote Control Timed Out."); |
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} |
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} else { |
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setTimeout('wait();',100); |
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} |
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} |
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function main() { |
&Apache::loncommon::content_type($r,'text/html'); |
canceltim=setTimeout('tim=1;',80000); |
$r->header_out('Set-cookie' => $cookie); |
checkdef(); |
$r->send_http_header; |
wait(); |
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} |
my %lt=&Apache::lonlocal::texthash( |
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'wel' => 'Welcome', |
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'pro' => 'Login problems?', |
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); |
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my $loginhelp = &loginhelpdisplay($domain); |
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if ($loginhelp) { |
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$loginhelp = '<p><a href="'.$loginhelp.'">'.$lt{'pro'}.'</a></p>'; |
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} |
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</script> |
my $welcome = &mt('Welcome to the Learning[_1]Online[_2] Network with CAPA. Please wait while your session is being set up.','<i>','</i>'); |
</head> |
$r->print(<<ENDSUCCESS); |
<body bgcolor="#FFFFFF"> |
$start_page |
<script> |
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menuloaded=0; |
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tim=0; |
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</script> |
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$windowinfo |
$windowinfo |
<h1>Welcome!</h1> |
<h1>$lt{'wel'}</h1> |
<script> |
$welcome |
main(); |
$loginhelp |
</script> |
$continuelink |
</body> |
$end_page |
</html> |
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ENDSUCCESS |
ENDSUCCESS |
} |
} |
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# --------------------------------------------------------------- Failed login! |
# --------------------------------------------------------------- Failed login! |
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sub failed { |
sub failed { |
my ($r,$message) = @_; |
my ($r,$message,$form) = @_; |
$r->send_cgi_header(<<ENDFHEADER); |
my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef); |
Content-type: text/html |
my $retry = '/adm/login?username='.$form->{'uname'}. |
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'&domain='.$form->{'udom'}; |
ENDFHEADER |
if (exists($form->{role})) { |
$r->print(<<ENDFAILED); |
$retry .= '&role='.$form->{role}; |
<html> |
} |
<head> |
if (exists($form->{symb})) { |
<title>Unsuccessful Login to the LearningOnline Network with CAPA</title> |
$retry .= '&symb='.$form->{symb}; |
</head> |
} |
<html> |
my $end_page = &Apache::loncommon::end_page(); |
<body bgcolor="#FFFFFF"> |
&Apache::loncommon::content_type($r,'text/html'); |
<h1>Sorry ...</h1> |
$r->send_http_header; |
<h2>$message to use the Learning<i>Online</i> Network with CAPA</h2> |
my $loginhelp = &loginhelpdisplay($form->{'udom'}); |
</body> |
if ($loginhelp) { |
</html> |
$loginhelp = '<p><a href="'.$loginhelp.'">'.&mt('Login problems?').'</a></p>'; |
ENDFAILED |
} |
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$r->print( |
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$start_page |
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.'<h1>'.&mt('Sorry ...').'</h1>' |
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.'<p class="LC_warning">'.&mt($message).'</p>' |
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.'<p>'.&mt('Please [_1]log in again[_2].','<a href="'.$retry.'">','</a>') |
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.'</p>' |
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.$loginhelp |
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.$end_page |
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); |
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} |
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# ------------------------------------------------------------------ Rerouting! |
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sub reroute { |
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my ($r) = @_; |
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&Apache::loncommon::content_type($r,'text/html'); |
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$r->send_http_header; |
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my $msg='<h1>'.&mt('Sorry ...').'</h1>' |
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.&mt('Please [_1]log in again[_2].'); |
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&Apache::loncommon::simple_error_page($r,'Rerouting',$msg); |
} |
} |
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# ---------------------------------------------------------------- Main handler |
# ---------------------------------------------------------------- Main handler |
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sub handler { |
sub handler { |
my $r = shift; |
my $r = shift; |
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my $londocroot = $r->dir_config('lonDocRoot'); |
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my $form; |
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# Are we re-routing? |
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if (-e "$londocroot/lon-status/reroute.txt") { |
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&reroute($r); |
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return OK; |
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} |
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&Apache::lonlocal::get_language_handle($r); |
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# -------------------------------- Prevent users from attempting to login twice |
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my $handle = &Apache::lonnet::check_for_valid_session($r); |
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if ($handle ne '') { |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
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if ($handle=~/^publicuser\_/) { |
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# For "public user" - remove it, we apparently really want to login |
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unlink($r->dir_config('lonIDsDir')."/$handle.id"); |
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} else { |
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# Indeed, a valid token is found |
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&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
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&Apache::loncommon::content_type($r,'text/html'); |
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$r->send_http_header; |
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my $start_page = |
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&Apache::loncommon::start_page('Already logged in'); |
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my $end_page = |
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&Apache::loncommon::end_page(); |
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my $dest = '/adm/roles'; |
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if ($env{'form.firsturl'} ne '') { |
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$dest = $env{'form.firsturl'}; |
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} |
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$r->print( |
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$start_page |
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.'<p class="LC_warning>"'.&mt('You are already logged in!').'</p>' |
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.'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].' |
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,'<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>') |
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.'</p>' |
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.$end_page |
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); |
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return OK; |
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} |
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} |
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# ---------------------------------------------------- No valid token, continue |
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my $buffer; |
my $buffer; |
$r->read($buffer,$r->header_in('Content-length')); |
if ($r->header_in('Content-length') > 0) { |
my @pairs=split(/&/,$buffer); |
$r->read($buffer,$r->header_in('Content-length'),0); |
my $pair; my $name; my $value; my %FORM; |
} |
foreach $pair (@pairs) { |
my %form; |
($name,$value) = split(/=/,$pair); |
foreach my $pair (split(/&/,$buffer)) { |
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my ($name,$value) = split(/=/,$pair); |
$value =~ tr/+/ /; |
$value =~ tr/+/ /; |
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
$FORM{$name}=$value; |
$form{$name}=$value; |
} |
} |
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if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) { |
if ((!$form{'uname'}) || (!$form{'upass0'}) || (!$form{'udom'})) { |
failed($r,'Username, password and domain need to be specified'); |
&failed($r,'Username, password and domain need to be specified.', |
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\%form); |
return OK; |
return OK; |
} |
} |
$FORM{'uname'} =~ s/\W//g; |
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$FORM{'udom'} =~ s/\W//g; |
# split user logging in and "su"-user |
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($form{'uname'},$form{'suname'})=split(/\:/,$form{'uname'}); |
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$form{'uname'} = &LONCAPA::clean_username($form{'uname'}); |
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$form{'suname'}= &LONCAPA::clean_username($form{'suname'}); |
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$form{'udom'} = &LONCAPA::clean_domain( $form{'udom'}); |
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my $role = $r->dir_config('lonRole'); |
my $role = $r->dir_config('lonRole'); |
my $domain = $r->dir_config('lonDefDomain'); |
my $domain = $r->dir_config('lonDefDomain'); |
my $prodir = $r->dir_config('lonUsersDir'); |
my $prodir = $r->dir_config('lonUsersDir'); |
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my $contact_name = &mt('LON-CAPA helpdesk'); |
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# ---------------------------------------- Get the information from login token |
# ---------------------------------------- Get the information from login token |
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my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'}, |
my $tmpinfo=Apache::lonnet::reply('tmpget:'.$form{'logtoken'}, |
$FORM{'serverid'}); |
$form{'serverid'}); |
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if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) { |
if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') || |
failed($r,'Login token missing, inaccessible or expired'); |
($tmpinfo eq 'no_such_host')) { |
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&failed($r,'Information needed to verify your login information is missing, inaccessible or expired.',\%form); |
return OK; |
return OK; |
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} else { |
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my $reply = &Apache::lonnet::reply('tmpdel:'.$form{'logtoken'}, |
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$form{'serverid'}); |
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if ( $reply ne 'ok' ) { |
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&failed($r,'Session could not be opened.',\%form); |
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&Apache::lonnet::logthis("ERROR got a reply of $reply when trying to contact ". $form{'serverid'}." to get login token"); |
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return OK; |
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} |
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} |
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|
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if (!&Apache::lonnet::domain($form{'udom'})) { |
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&failed($r,'The domain you provided is not a valid LON-CAPA domain.',\%form); |
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return OK; |
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} |
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my ($key,$firsturl,$rolestr,$symbstr)=split(/&/,$tmpinfo); |
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if ($rolestr) { |
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$rolestr = &unescape($rolestr); |
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} |
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if ($symbstr) { |
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$symbstr= &unescape($symbstr); |
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} |
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if ($rolestr =~ /^role=/) { |
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(undef,$form{'role'}) = split('=',$rolestr); |
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} |
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if ($symbstr =~ /^symb=/) { |
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(undef,$form{'symb'}) = split('=',$symbstr); |
} |
} |
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my ($key,$firsturl)=split(/&/,$tmpinfo); |
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|
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my $keybin=pack("H16",$key); |
my $keybin=pack("H16",$key); |
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Line 293 sub handler {
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Line 326 sub handler {
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else { |
else { |
$cipher=new DES $keybin; |
$cipher=new DES $keybin; |
} |
} |
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my $upass=''; |
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for (my $i=0;$i<=2;$i++) { |
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my $chunk= |
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$cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},0,16)))); |
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my $upass=$cipher->decrypt( |
$chunk.= |
unpack("a8",pack("H16",substr($FORM{'upass'},0,16)))); |
$cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},16,16)))); |
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$upass.=$cipher->decrypt( |
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unpack("a8",pack("H16",substr($FORM{'upass'},16,16)))); |
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|
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$upass=substr($upass,1,ord(substr($upass,0,1))); |
$chunk=substr($chunk,1,ord(substr($chunk,0,1))); |
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$upass.=$chunk; |
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} |
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# ---------------------------------------------------------------- Authenticate |
# ---------------------------------------------------------------- Authenticate |
my $authhost=Apache::lonnet::authenticate($FORM{'uname'}, |
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$upass, |
my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$form{'udom'}); |
$FORM{'udom'}); |
my ($cancreate,$statustocreate) = |
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&Apache::createaccount::get_creation_controls($form{'udom'},$domconfig{'usercreation'}); |
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my $defaultauth; |
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if (ref($cancreate) eq 'ARRAY') { |
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if (grep(/^login$/,@{$cancreate})) { |
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$defaultauth = 1; |
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} |
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} |
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my $clientcancheckhost = 1; |
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my $authhost=Apache::lonnet::authenticate($form{'uname'},$upass, |
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$form{'udom'},$defaultauth, |
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$clientcancheckhost); |
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# --------------------------------------------------------------------- Failed? |
# --------------------------------------------------------------------- Failed? |
|
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if ($authhost eq 'no_host') { |
if ($authhost eq 'no_host') { |
failed($r,'Username and/or password could not be authenticated'); |
&failed($r,'Username and/or password could not be authenticated.', |
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\%form); |
return OK; |
return OK; |
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} elsif ($authhost eq 'no_account_on_host') { |
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if ($defaultauth) { |
|
my $domdesc = &Apache::lonnet::domain($form{'udom'},'description'); |
|
unless (&check_can_host($r,\%form,'no_account_on_host',$domdesc)) { |
|
return OK; |
|
} |
|
my $start_page = |
|
&Apache::loncommon::start_page('Create a user account in LON-CAPA'); |
|
my $lonhost = $r->dir_config('lonHostID'); |
|
my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; |
|
my $contacts = |
|
&Apache::loncommon::build_recipient_list(undef,'helpdeskmail', |
|
$form{'udom'},$origmail); |
|
my ($contact_email) = split(',',$contacts); |
|
my $output = |
|
&Apache::createaccount::username_check($form{'uname'},$form{'udom'}, |
|
$domdesc,'',$lonhost, |
|
$contact_email,$contact_name, |
|
undef,$statustocreate); |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->send_http_header; |
|
&Apache::createaccount::print_header($r,$start_page); |
|
$r->print('<h3>'.&mt('Account creation').'</h3>'. |
|
&mt('Although your username and password were authenticated, you do not currently have a LON-CAPA account at this institution.').'<br />'. |
|
$output.&Apache::loncommon::end_page()); |
|
return OK; |
|
} else { |
|
&failed($r,'Although your username and password were authenticated, you do not currently have a LON-CAPA account in this domain, and you are not permitted to create one.',\%form); |
|
return OK; |
|
} |
} |
} |
|
|
if (($firsturl eq '') || ($firsturl eq '/adm/logout')) { |
if (($firsturl eq '') || |
|
($firsturl=~/^\/adm\/(logout|remote)/)) { |
$firsturl='/adm/roles'; |
$firsturl='/adm/roles'; |
} |
} |
|
# --------------------------------- Are we attempting to login as somebody else? |
|
if ($form{'suname'}) { |
|
# ------------ see if the original user has enough privileges to pull this stunt |
|
if (&Apache::lonnet::privileged($form{'uname'},$form{'udom'})) { |
|
# ---------------------------------------------------- see if the su-user exists |
|
unless (&Apache::lonnet::homeserver($form{'suname'},$form{'udom'}) |
|
eq 'no_host') { |
|
&Apache::lonnet::logthis(&Apache::lonnet::homeserver($form{'suname'},$form{'udom'})); |
|
# ------------------------------ see if the su-user is not too highly privileged |
|
unless (&Apache::lonnet::privileged($form{'suname'},$form{'udom'})) { |
|
# -------------------------------------------------------- actually switch users |
|
&Apache::lonnet::logperm('User '.$form{'uname'}.' at '.$form{'udom'}. |
|
' logging in as '.$form{'suname'}); |
|
$form{'uname'}=$form{'suname'}; |
|
} else { |
|
&Apache::lonnet::logthis('Attempted switch user to privileged user'); |
|
} |
|
} |
|
} else { |
|
&Apache::lonnet::logthis('Non-privileged user attempting switch user'); |
|
} |
|
} |
|
|
|
my ($is_balancer,$otherserver) = |
|
&Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'}); |
|
|
|
if ($is_balancer) { |
|
if (!$otherserver) { |
|
($otherserver) = &Apache::lonnet::choose_server($form{'udom'}); |
|
} |
|
if ($otherserver) { |
|
&success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef, |
|
\%form); |
|
$r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl); |
|
} else { |
|
$r->print(&noswitch()); |
|
} |
|
return OK; |
|
} else { |
|
if (!&check_can_host($r,\%form,$authhost)) { |
|
my ($otherserver) = &Apache::lonnet::choose_server($form{'udom'}); |
|
if ($otherserver) { |
|
&success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef, |
|
\%form); |
|
$r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl); |
|
} else { |
|
$r->print(&noswitch()); |
|
} |
|
return OK; |
|
} |
|
|
|
# ------------------------------------------------------- Do the load balancing |
|
|
|
# ---------------------------------------------------------- Determine own load |
|
my $loadlim = $r->dir_config('lonLoadLim'); |
|
my $loadavg; |
|
{ |
|
my $loadfile=Apache::File->new('/proc/loadavg'); |
|
$loadavg=<$loadfile>; |
|
} |
|
$loadavg =~ s/\s.*//g; |
|
my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); |
|
my $userloadpercent=&Apache::lonnet::userload(); |
|
|
|
# ---------------------------------------------------------- Are we overloaded? |
|
if ((($userloadpercent>100.0)||($loadpercent>100.0))) { |
|
my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent,1,$form{'udom'}); |
|
if (!$unloaded) { |
|
($unloaded) = &Apache::lonnet::choose_server($form{'udom'}); |
|
} |
|
if ($unloaded) { |
|
&success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect', |
|
undef,\%form); |
|
$r->internal_redirect('/adm/switchserver?otherserver='.$unloaded.'&origurl='.$firsturl); |
|
return OK; |
|
} |
|
} |
|
&success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef, |
|
\%form); |
|
return OK; |
|
} |
|
} |
|
|
|
sub check_can_host { |
|
my ($r,$form,$authhost,$domdesc) = @_; |
|
return unless (ref($form) eq 'HASH'); |
|
my $canhost = 1; |
|
my $lonhost = $r->dir_config('lonHostID'); |
|
my $udom = $form->{'udom'}; |
|
my @intdoms; |
|
my $internet_names = &Apache::lonnet::get_internet_names($lonhost); |
|
if (ref($internet_names) eq 'ARRAY') { |
|
@intdoms = @{$internet_names}; |
|
} |
|
my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); |
|
my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); |
|
unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) { |
|
my $machine_dom = &Apache::lonnet::host_domain($lonhost); |
|
my $hostname = &Apache::lonnet::hostname($lonhost); |
|
my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname); |
|
my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID); |
|
my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom); |
|
my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom); |
|
my $loncaparev; |
|
if ($authhost eq 'no_account_on_host') { |
|
$loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom); |
|
} else { |
|
$loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom,$lonhost); |
|
} |
|
$canhost = &Apache::lonnet::can_host_session($udom,$lonhost,$loncaparev, |
|
$udomdefaults{'remotesessions'}, |
|
$defdomdefaults{'hostedsessions'}); |
|
} |
|
unless ($canhost) { |
|
if ($authhost eq 'no_account_on_host') { |
|
my $checkloginvia = 1; |
|
my ($login_host,$hostname) = |
|
&Apache::lonnet::choose_server($udom,$checkloginvia); |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->send_http_header; |
|
if ($login_host ne '') { |
|
my $protocol = $Apache::lonnet::protocol{$login_host}; |
|
$protocol = 'http' if ($protocol ne 'https'); |
|
my $newurl = $protocol.'://'.$hostname.'/adm/createaccount'; |
|
$r->print(&Apache::loncommon::start_page('Create a user account in LON-CAPA'). |
|
'<h3>'.&mt('Account creation').'</h3>'. |
|
&mt('You do not currently have a LON-CAPA account at this institution.').'<br />'. |
|
'<p>'.&mt('You will be able to create one by logging into a LON-CAPA server within the [_1] domain.',$domdesc).'</p>'. |
|
'<p>'.&mt('[_1]Log in[_2]','<a href="'.$newurl.'">','</a>'). |
|
&Apache::loncommon::end_page()); |
|
} else { |
|
$r->print(&Apache::loncommon::start_page('Access to LON-CAPA unavailable'). |
|
'<h3>'.&mt('Account creation unavailable').'</h3>'. |
|
&mt('You do not currently have a LON-CAPA account at this institution.').'<br />'. |
|
'<p>'.&mt('Currently a LON-CAPA server is not available within the [_1] domain for you to log-in to, to create an account.',$domdesc).'</p>'. |
|
&Apache::loncommon::end_page()); |
|
} |
|
} else { |
|
&success($r,$form->{'uname'},$udom,$authhost,'noredirect',undef, |
|
$form); |
|
my ($otherserver) = &Apache::lonnet::choose_server($udom); |
|
$r->internal_redirect('/adm/switchserver?otherserver='.$otherserver); |
|
} |
|
} |
|
return $canhost; |
|
} |
|
|
|
sub noswitch { |
|
my $result = &Apache::loncommon::start_page('Access to LON-CAPA unavailable'). |
|
'<h3>'.&mt('Session unavailable').'</h3>'. |
|
&mt('This LON-CAPA server is unable to host your session.').'<br />'. |
|
'<p>'.&mt('Currently no other LON-CAPA server is available to host your session either.').'</p>'. |
|
&Apache::loncommon::end_page(); |
|
return $result; |
|
} |
|
|
success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl); |
sub loginhelpdisplay { |
return OK; |
my ($authdomain) = @_; |
|
my $login_help = 1; |
|
my $lang = &Apache::lonlocal::current_language(); |
|
if ($login_help) { |
|
my $dom = $authdomain; |
|
if ($dom eq '') { |
|
$dom = &Apache::lonnet::default_login_domain(); |
|
} |
|
my %domconfhash = &Apache::loncommon::get_domainconf($dom); |
|
my $loginhelp_url; |
|
if ($lang) { |
|
$loginhelp_url = $domconfhash{$dom.'.login.helpurl_'.$lang}; |
|
if ($loginhelp_url ne '') { |
|
return $loginhelp_url; |
|
} |
|
} |
|
$loginhelp_url = $domconfhash{$dom.'.login.helpurl_nolang'}; |
|
if ($loginhelp_url ne '') { |
|
return $loginhelp_url; |
|
} else { |
|
return '/adm/loginproblems.html'; |
|
} |
|
} |
|
return; |
} |
} |
|
|
1; |
1; |