# The LearningOnline Network with CAPA # Handler to upload files into construction space # # $Id: lonupload.pm,v 1.21 2003/11/08 10:58:30 albertel 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::lonupload; use strict; use Apache::File; use File::Copy; use File::Basename; use Apache::Constants qw(:common :http :methods); use Apache::loncacc; use Apache::loncommon(); use Apache::Log(); use Apache::lonnet; use HTML::Entities(); use Apache::lonlocal; my $DEBUG=0; sub Debug { # Marshall the parameters. my $r = shift; my $log = $r->log; my $message = shift; # Put out the indicated message butonly if DEBUG is false. if ($DEBUG) { $log->debug($message); } } sub upfile_store { my $r=shift; my $fname=$ENV{'form.upfile.filename'}; $fname=~s/\W//g; chomp($ENV{'form.upfile'}); my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}. '_upload_'.$fname.'_'.time.'_'.$$; { my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons'). '/tmp/'.$datatoken.'.tmp'); print $fh $ENV{'form.upfile'}; } return $datatoken; } sub phaseone { my ($r,$fn,$uname,$udom)=@_; $ENV{'form.upfile.filename'}=~s/\\/\//g; $ENV{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/; if ($ENV{'form.upfile.filename'}) { $fn=~s/\/[^\/]+$//; $fn=~s/([^\/])$/$1\//; $fn.=$ENV{'form.upfile.filename'}; $fn=~s/^\///; $fn=~s/(\/)+/\//g; # Fn is the full path to the destination filename. # &Debug($r, "Filename for upload: $fn"); if (($fn) && ($fn!~/\/$/)) { $r->print( '
'); # Check for bad extension and warn user if ($fn=~/\.(\w+)$/ && (&Apache::loncommon::fileembstyle($1) eq 'hdn')) { $r->print( ''. &mt('The extension on this file,').' "'.$1. '"'.&mt(', is reserved internally by LON-CAPA.').''.&mt('Back to Directory').'');
} elsif ($fn=~/\.(\w+)$/ &&
!defined(&Apache::loncommon::fileembstyle($1))) {
$r->print(
&mt('File').' '.$fn.' '.&mt('could not be copied.').'
'.
''.
&mt('The extension on this file is not recognized by LON-CAPA.').
'');
$r->print('
'.&mt('Back to Directory').'');
} elsif (-d $target) {
$r->print(
'File '.$fn.' could not be copied.
'.
''.
&mt('The target is an existing directory.').
'');
$r->print('
'.&mt('Back to Directory').''); } elsif (copy($source,$target)) { chmod(0660, $target); # Set permissions to rw-rw---. $r->print(&mt('File copied.')); $r->print('
'.&mt('View file').''); $r->print('
'.&mt('Back to Directory').''); } else { $r->print('Failed to copy: '.$!); $r->print('
'.&mt('Back to Directory').''); } } } else { $r->print( ''. &mt('Please use browser "Back" button and pick a filename').'
'); } } else { $r->print( ''.&mt('Please use browser "Back" button and pick a filename').'
'); } } # ---------------------------------------------------------------- Main Handler sub handler { my $r=shift; my $uname; my $udom; # # phase two: re-attach user # if ($ENV{'form.uploaduname'}) { $ENV{'form.filename'}='/priv/'.$ENV{'form.uploaduname'}.'/'. $ENV{'form.filename'}; } # ($uname,$udom)= &Apache::loncacc::constructaccess( $ENV{'form.filename'},$r->dir_config('lonDefDomain')); unless (($uname) && ($udom)) { $r->log_reason($uname.' at '.$udom. ' trying to publish file '.$ENV{'form.filename'}. ' - not authorized', $r->filename); return HTTP_NOT_ACCEPTABLE; } my $fn; if ($ENV{'form.filename'}) { $fn=$ENV{'form.filename'}; $fn=~s/^http\:\/\/[^\/]+\///; $fn=~s/^\///; $fn=~s/(\~|priv\/)(\w+)//; $fn=~s/\/+/\//g; } else { $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. ' unspecified filename for upload', $r->filename); return HTTP_NOT_FOUND; } # ----------------------------------------------------------- Start page output &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; $r->print('