--- loncom/auth/lonlogout.pm 2000/10/05 15:31:42 1.2 +++ loncom/auth/lonlogout.pm 2009/09/15 00:06:28 1.32.2.1 @@ -1,9 +1,30 @@ # The LearningOnline Network # Logout Handler -# (Cookie Based Access Handler -# 5/21/99,5/22,5/29,5/31,6/15,16/11,22/11, -# 01/06,01/13 Gerd Kortemeyer) -# 05/31 Gerd Kortemeyer +# +# $Id: lonlogout.pm,v 1.32.2.1 2009/09/15 00:06:28 raeburn Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# package Apache::lonlogout; @@ -13,58 +34,115 @@ use Apache::File; use Apache::lonnet; use Apache::lonmenu; use CGI::Cookie(); +use Apache::lonlocal; sub handler { my $r = shift; + #Check for cookie my $requrl=$r->uri; - my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); - my $lonid=$cookies{'lonID'}; - my $cookie; - if ($lonid) { - my $handle=$lonid->value; - $handle=~s/\W//g; - my $lonidsdir=$r->dir_config('lonIDsDir'); - if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) { - my @profile; - my %sessionhash; - { - my $idf=Apache::File->new("$lonidsdir/$handle.id"); - @profile=<$idf>; - } - my $envi; - for ($envi=0;$envi<=$#profile;$envi++) { - chomp($profile[$envi]); - my ($envname,$envvalue)=split(/=/,$profile[$envi]); - $sessionhash{$envname}=$envvalue; - } - unlink("$lonidsdir/$handle.id"); - &Apache::lonnet::log($sessionhash{'user.domain'}, - $sessionhash{'user.name'}, - $sessionhash{'user.home'}, - "Logout $ENV{'REMOTE_ADDR'}"); - $r->content_type('text/html'); - $r->send_http_header; - return OK if $r->header_only; + my $handle = &Apache::lonnet::check_for_valid_session($r); + #check if cookie still valid + if ($handle eq '') { + $r->log_reason("Cookie $handle not valid", $r->filename); + return FORBIDDEN; + } + + #we've got a valid user + #any locks in place? + my $locknum=&Apache::lonnet::get_locks(); + if ($locknum) { return 409; } + #nope, go ahead + my @profile; + my $lonidsdir=$r->dir_config('lonIDsDir'); + &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); + unlink("$lonidsdir/$handle.id"); + my %temp=('logout' => time); + &Apache::lonnet::put('email_status',\%temp); + &Apache::lonnet::log($env{'user.domain'}, + $env{'user.name'}, + $env{'user.home'}, + "Logout $ENV{'REMOTE_ADDR'}"); + + &Apache::loncommon::content_type($r,'text/html'); + + #expire the cookie + my $c = new CGI::Cookie(-name => 'lonID', + -value => '', + -expires => '-10y',); + $r->header_out('Set-cookie' => $c); + + $r->send_http_header; + return OK if $r->header_only; # -------------------------------------------------------- Menu script and info my $windowinfo=&Apache::lonmenu::close(); + $windowinfo.=&Apache::lonnavmaps::close(); +# ---------------------------------------------------------------- Get handover + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']); + my $switch=''; + my $start_page=''; + my $relogmessage=''; + if ($env{'form.handover'}) { + $switch=''; + $start_page=&Apache::loncommon::start_page('Switching Server ...', + $switch); + } else { + $start_page=&Apache::loncommon::start_page('Logged Out',undef, + {'no_inline_link' => 1,}); + + $relogmessage.='

'.&mt('Goodbye').'

' + .'

'.&mt('Thank you for using LON-CAPA.').'

'; + + if (!$env{'request.sso.norelogin'}) { + my $relogin_server; + if ($env{'request.sso.reloginserver'}) { + $relogin_server = $env{'request.sso.reloginserver'}; + } + my $login_url = $relogin_server.'/adm/'. + ($env{'request.sso.login'} ? 'roles': 'login'); + + $relogmessage.='

'.&mt('You have been successfully logged out.').' ' + .&mt('You can [_1]close this window[_2] now.' + ,'','') +# ,'',''); +# Due to security reasons in new web browsers a window could only be closed with java script, if this window has also been opend with javascript. This is not done here which means that in most cases the close link will not work. Unless we find another solution, this link should not be offered. (Stefan Bisitz, 2008-08-01) + .'

' + .'

'.&mt('[_1]Log in again[_2]' + ,'',''). + (' 'x6).&mt('[_1]Return to WebCenter front page[_2]', + '','') + .'

'; + } + my $domain = $env{'user.domain'}; + if ($env{'request.sso.login'} + && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) { + open(my $fh,$r->dir_config("lonSSOUserLogoutMessageFile_$domain")); + $relogmessage.= join('',<$fh>); + } + if ($env{'request.sso.login'} + && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) { + open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile')); + $relogmessage.= join('',<$fh>); + } + } + my $end_page=&Apache::loncommon::end_page(); # --------------------------------------------------------------- Screen Output - $r->print(< -The LearningOnline Network with CAPA Logout - + $r->print(<Goodbye! - +$relogmessage +$end_page ENDDOCUMENT - return OK; - } else { - $r->log_reason("Cookie $handle not valid", $r->filename); - } - } - return FORBIDDEN; + $r->register_cleanup(\&flush_course_logs); + return OK; +} + +sub flush_course_logs { + &Apache::lonnet::flushcourselogs(); + return OK; } 1;