opac/opac-logout.pl

   1 #!/usr/bin/perl
   2
   3 # This file is part of Koha.
   4 #
   5 # Koha is free software; you can redistribute it and/or modify it under the
   6 # terms of the GNU General Public License as published by the Free Software
   7 # Foundation; either version 2 of the License, or (at your option) any later
   8 # version.
   9 #
  10 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  11 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  12 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along with
  15 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  16 # Suite 330, Boston, MA  02111-1307 USA
  17
  18 use CGI;
  19 use C4::Context;
  20 use C4::Output;
  21
  22 my $query     = new CGI;
  23 my $sessionID = $query->cookie('sessionID');
  24 my $dbh       = C4::Context->dbh;
  25
  26 # Check that this is the ip that created the session before deleting it
  27 my $sth = $dbh->prepare("select userid,ip from sessions where sessionID=?");
  28 $sth->execute($sessionID);
  29 my ( $userid, $ip );
  30 if ( $sth->rows ) {
  31     ( $userid, $ip ) = $sth->fetchrow;
  32     if ( $ip ne $ENV{'REMOTE_ADDR'} ) {
  33
  34         # attempt to logout from a different ip than cookie was created at
  35         exit;
  36     }
  37 }
  38
  39 $sth = $dbh->prepare("delete from sessions where sessionID=?");
  40 $sth->execute($sessionID);
  41 open L, ">>/tmp/sessionlog";
  42 my $time = localtime( time() );
  43 printf L "%20s from %16s logged out at %30s (manual log out).\n", $userid, $ip,
  44   $time;
  45 close L;
  46
  47 my $cookie = $query->cookie(
  48     -name    => 'sessionID',
  49     -value   => '',
  50     -expires => '+1y'
  51 );
  52
  53 # Should redirect to opac home page after logging out
  54
  55 print $query->redirect("/cgi-bin/koha/opac-main.pl");
  56
  57 exit;
  58