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- Apache2 caches finfo and needs finfo explicitly updated if one is touching
  $r->filename after the PerlMapToStorageHandler phase

    1: # The LearningOnline Network
    2: # Replication Manager
    3: #
    4: # $Id: lonrep.pm,v 1.11 2006/08/21 15:21:31 albertel Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: package Apache::lonrep;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common :http);
   33: use Apache::lonnet;
   34: use Apache::File();
   35: use CGI::Cookie();
   36: 
   37: sub update_filename {
   38:     my ($r,$filename) = @_;
   39:     my $oldfile = $r->filename($filename);
   40:     if ($ENV{'MOD_PERL_API_VERSION'} == 2) {
   41: 	require APR::Finfo;
   42: 	require APR::Const;
   43: 	$r->finfo(APR::Finfo::stat($filename, 
   44: 				   &APR::Const::FINFO_NORM(),
   45: 				   $r->pool));
   46:     }
   47:     return $oldfile;
   48: }
   49: 
   50: sub handler {
   51:     my $r = shift;
   52:     if (-e $r->finfo) {
   53:       return OK;
   54:     } else {
   55:       my $filename=$r->filename.$r->path_info;
   56:       if ($filename=~/\/$/) { return OK; }
   57:       if (-e "$filename.in.transfer") {
   58: 	sleep 10;
   59: 	&update_filename($r,$filename);
   60:         if (-e $r->finfo) {
   61: 	   return OK;
   62:         } else {
   63: 	   $r->log_reason("Waiting for file transfer timed out",$filename);
   64: 	   return HTTP_SERVICE_UNAVAILABLE;
   65:         }
   66:       } else {
   67:           my $response=Apache::lonnet::repcopy($filename);
   68:           if ($response eq 'ok') {
   69: 	      $r->path_info('');
   70: 	      &update_filename($r,$filename);
   71:               return OK;
   72:           }
   73:           my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
   74:           my $lonid=$cookies{'lonID'};
   75:           if ($lonid) {
   76: 	     $r->log_reason('Replication failed for '.$lonid->value);
   77:              return $response;
   78: 	  } else {
   79: 	     $r->log_reason('Replication failed for unknown user'); 
   80:              return FORBIDDEN;
   81:           } 
   82:       }
   83:     }
   84: }
   85: 
   86: 1;
   87: __END__
   88: 
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   95: