--- loncom/publisher/lonupload.pm 2001/05/25 16:36:36 1.3
+++ loncom/publisher/lonupload.pm 2006/07/05 22:23:09 1.33
@@ -1,158 +1,401 @@
+
# The LearningOnline Network with CAPA
# Handler to upload files into construction space
#
-# (Handler to retrieve an old version of a file
+# $Id: lonupload.pm,v 1.33 2006/07/05 22:23:09 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.
#
-# (Publication Handler
-#
-# (TeX Content Handler
+# 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.
#
-# 05/29/00,05/30,10/11 Gerd Kortemeyer)
+# 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
#
-# 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
-# 03/23 Guy Albertelli
-# 03/24,03/29 Gerd Kortemeyer)
+# /home/httpd/html/adm/gpl.txt
#
-# 03/31,04/03 Gerd Kortemeyer)
+# http://www.lon-capa.org/
#
-# 04/05,04/09,05/25 Gerd Kortemeyer
+###
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::lonnet;
+use HTML::Entities();
+use Apache::lonlocal;
+use Apache::lonnet;
+
+my $DEBUG=0;
+
+sub Debug {
+ # Put out the indicated message but only if DEBUG is true.
+ if ($DEBUG) {
+ my ($r,$message) = @_;
+ $r->log_reason($message);
+ }
+}
sub upfile_store {
my $r=shift;
- my $fname=$ENV{'form.upfile.filename'};
+ my $fname=$env{'form.upfile.filename'};
$fname=~s/\W//g;
- chop($ENV{'form.upfile'});
+ chomp($env{'form.upfile'});
- my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
+ 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'};
+ print $fh $env{'form.upfile'};
}
return $datatoken;
}
sub phaseone {
- my ($r,$fn,$uname,$udom)=@_;
- $fn=~s/\/[^\/]+$//;
- $fn=~s/([^\/])$/$1\//;
- $fn.=$ENV{'form.upfile.filename'};
- $fn=~s/^\///;
- $fn=~s/(\/)+/\//g;
-
- if (($fn) && ($fn!~/\/$/)) {
- $r->print(
- '<form action=/adm/upload method=post>'.
- '<input type=hidden name=phase value=two>'.
- '<input type=hidden name=datatoken value="'.&upfile_store.'">'.
- 'Store uploaded file as '.
- '<input type=text size=50 name=filename value="/priv/'.
- $uname.'/'.$fn.'"><br>'.
- '<input type=submit value="Store"></form>');
- } else {
- $r->print('<font color=red>Illegal filename.</font>');
- }
+ my ($r,$fn,$uname,$udom,$mode)=@_;
+ my $action = '/adm/upload';
+ if ($mode eq 'testbank') {
+ $action = '/adm/testbank';
+ } elsif ($mode eq 'imsimport') {
+ $action = '/adm/imsimport';
+ }
+ $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) && ($fn!~/\/$/)) {
+ $r->print('<form action="'.$action.'" method="post" name="fileupload">'.
+ '<input type="hidden" name="phase" value="two" />'.
+ '<input type="hidden" name="datatoken" value="'.
+ &upfile_store.'" />'.
+ '<input type="hidden" name="uploaduname" value="'.$uname.
+ '" />'.&mt('Store uploaded file as ').
+ "<span class='LC_filename'>/priv/$uname/</span>".
+ '<input type="text" size="50" name="filename" value="'.$fn.
+ '" /><br />'.
+ '<br />'.&mt('Choose file type:').'
+<select name="filetype">
+ <option value="standard" selected>'.&mt('Regular file').'
+ <option value="testbank">'.&mt('Testbank file').'
+ <option value="imsimport">'.&mt('IMS package').'
+</select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options").'
+<br />
+<br />
+');
+ $r->print('<input type="button" value="'.&mt('Store').'" onClick="javascript:verifyForm()"/></form>');
+ # Check for bad extension and warn user
+ if ($fn=~/\.(\w+)$/ &&
+ (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
+ $r->print('<span class="LC_error">'.&mt('The extension on this file,').
+ ' "'.$1.'"'.&mt(', is reserved internally by LON-CAPA.').
+ ' <br />'.&mt('Please change the extension.').'</span>');
+ } elsif($fn=~/\.(\w+)$/ &&
+ !defined(&Apache::loncommon::fileembstyle($1))) {
+ $r->print('<span class="LC_error">'.&mt('The extension on this file,').
+ ' "'.$1.'"'.&mt(', is not recognized by LON-CAPA.').
+ ' <br />'.&mt('Please change the extension.').
+ '</span>');
+ }
+ } else {
+ $r->print('<span class="LC_error">'.&mt('Illegal filename.').'</span>');
+ }
+ } else {
+ $r->print('<span class="LC_error">'.&mt('No upload file specified.').'</span>');
+ }
}
sub phasetwo {
- my ($r,$fn,$uname,$udom)=@_;
- my $tfn=$fn;
- $tfn=~s/^\/(\~|priv)\/(\w+)//;
- my $target='/home/'.$uname.'/public_html'.$tfn;
- my $datatoken=$ENV{'form.datatoken'};
- if (($fn) && ($datatoken)) {
- if ((-e $target) && ($ENV{'form.override'} ne 'Yes')) {
- $r->print(
- '<form action=/adm/upload method=post>'.
- 'File <tt>'.$fn.'</tt> exists. Overwrite? '.
- '<input type=hidden name=phase value=two>'.
- '<input type=hidden name=filename value="'.$fn.'">'.
- '<input type=hidden name=datatoken value="'.$datatoken.'">'.
- '<input type=submit name=override value="Yes"></form>');
- } else {
- my $source=$r->dir_config('lonDaemons').
- '/tmp/'.$datatoken.'.tmp';
- if (copy($source,$target)) {
- $r->print('File copied.');
- $r->print('<p><font size=+2><a href="'.$fn.
- '">View file</a></font>');
- } else {
- $r->print('Failed to copy: '.$!);
- }
- }
+ my ($r,$tfn,$uname,$udom,$mode)=@_;
+ my $action = '/adm/upload';
+ my $returnflag = '';
+ if ($mode eq 'testbank') {
+ $action = '/adm/testbank';
+ } elsif ($mode eq 'imsimport') {
+ $action = '/adm/imsimport';
+ }
+ my $fn='/priv/'.$uname.'/'.$tfn;
+ $fn=~s/\/+/\//g;
+ &Debug($r, "Filename is ".$tfn);
+ if ($tfn) {
+ &Debug($r, "Filename for tfn = ".$tfn);
+ my $target='/home/'.$uname.'/public_html'.$tfn;
+ &Debug($r, "target -> ".$target);
+# target is the full filesystem path of the destination file.
+ my $base = &File::Basename::basename($fn);
+ my $path = &File::Basename::dirname($fn);
+ $base = &HTML::Entities::encode($base,'<>&"');
+ my $url = $path."/".$base;
+ &Debug($r, "URL is now ".$url);
+ my $datatoken=$env{'form.datatoken'};
+ if (($fn) && ($datatoken)) {
+ if ((-e $target) && ($env{'form.override'} ne 'Yes')) {
+ $r->print('<form action="'.$action.'" method="post">'.
+ &mt('File').' <span class="LC_filename">'.$fn.'</span> '.
+ &mt('exists. Overwrite?').' '.
+ '<input type="hidden" name="phase" value="two" />'.
+ '<input type="hidden" name="filename" value="'."$url".'" />'.
+ '<input type="hidden" name="datatoken" value="'.$datatoken.'" />'.
+ '<input type="submit" name="override" value="'.&mt('Yes').'" /></form>');
+ } else {
+ my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
+ my $dirpath=$path.'/';
+ $dirpath=~s/\/+/\//g;
+ # Check for bad extension and disallow upload
+ if ($fn=~/\.(\w+)$/ &&
+ (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
+ $r->print(&mt('File').' <span class="LC_filename">'.$fn.'</span> '.
+ &mt('could not be copied.').'<br />'.
+ '<span class="LC_error">'.
+ &mt('The extension on this file is reserved internally by LON-CAPA.').
+ '</span>');
+ $r->print('<br /><font size=+2><a href="'.$dirpath.'">'.
+ &mt('Back to Directory').'</a></font>');
+ } elsif ($fn=~/\.(\w+)$/ &&
+ !defined(&Apache::loncommon::fileembstyle($1))) {
+ $r->print(&mt('File').' <span class="LC_filename">'.$fn.'</span> '.
+ &mt('could not be copied.').'<br />'.
+ '<span class="LC_error">'.
+ &mt('The extension on this file is not recognized by LON-CAPA.').
+ '</span>');
+ $r->print('<br /><font size="+2"><a href="'.$dirpath.'">'.
+ &mt('Back to Directory').'</a></font>');
+ } elsif (-d $target) {
+ $r->print('File <span class="LC_filename">'.$fn.'</span> could not be copied.<br />'.
+ '<span class="LC_error">'.
+ &mt('The target is an existing directory.').
+ '</span><br />');
+ $r->print('<font size="+2"><a href="'.$dirpath.'">'.
+ &mt('Back to Directory').'</a></font>');
+ } elsif (copy($source,$target)) {
+ chmod(0660, $target); # Set permissions to rw-rw---.
+ if ($mode eq 'testbank' || $mode eq 'imsimport') {
+ $r->print(&mt("Your file - $fn - was uploaded successfully")."<br /><br />");
+ $returnflag = 'ok';
+ } else {
+ $r->print(&mt('File copied.'));
+ $r->print('<br /><font size="+2"><a href="'.$url.'">'.
+ &mt('View file').'</a></font>');
+ $r->print('<br /><font size="+2"><a href="'.$dirpath.'">'.
+ &mt('Back to Directory').'</a></font><br />');
+ }
+ } else {
+ $r->print('Failed to copy: '.$!);
+ $r->print('<br /><font size="+2"><a href="'.$path.'">'.
+ &mt('Back to Directory').'</a></font>');
+ }
+ }
+ } else {
+ $r->print('<span class="LC_error">'.
+ &mt('Please use browser "Back" button and pick a filename').
+ '</span><br />');
+ }
} else {
- $r->print(
- '<font size=+1 color=red>Please pick a filename</font><p>');
- &phaseone($r,$fn,$uname,$udom);
+ $r->print('<span class="LC_error">'.
+ &mt('Please use browser "Back" button and pick a filename').
+ '</span><br />>');
}
+ return $returnflag;
}
+# ---------------------------------------------------------------- Main Handler
sub handler {
- my $r=shift;
+ my $r=shift;
- my $uname;
- my $udom;
+ my $uname;
+ my $udom;
+ my $javascript = '';
+#
+# phase two: re-attach user
+#
+ if ($env{'form.uploaduname'}) {
+ $env{'form.filename'}='/priv/'.$env{'form.uploaduname'}.'/'.
+ $env{'form.filename'};
+ }
- unless (($uname,$udom)=
- &Apache::loncacc::constructaccess(
- $ENV{'form.filename'},$r->dir_config('lonDefDomain'))) {
- $r->log_reason($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\:\/\/[^\/]+\/(\~|priv\/)(\w+)//;
- } else {
- $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
- ' unspecified filename for upload', $r->filename);
- return HTTP_NOT_FOUND;
- }
+ unless ($env{'form.phase'} eq 'two') {
+ my %body_layout = ('rightmargin' => "0",
+ 'leftmargin' => "0",
+ 'marginwidth' => "0",
+ 'topmargin' => "0",
+ 'marginheight' => "0");
+ my $start_page =
+ &Apache::loncommon::start_page('Importing a Testbank file into LON-CAPA',
+ undef,
+ {'only_body' => 1,
+ 'add_entries' => \%body_layout,
+ 'js_ready' => 1,});
+ my $end_page =
+ &Apache::loncommon::end_page({'js_ready' => 1,});
+
+ $javascript = qq|
+function verifyForm() {
+ var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value
+ if (mode == "testbank") {
+ document.fileupload.action = "/adm/testbank";
+ }
+ if (mode == "imsimport") {
+ document.fileupload.action = "/adm/imsimport";
+ }
+ if (mode == "standard") {
+ document.fileupload.action = "/adm/upload";
+ }
+ document.fileupload.submit();
+}
+ |;
+ }
+ ($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
- $r->content_type('text/html');
- $r->send_http_header;
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
- $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
+ $javascript = "<script type=\"text/javascript\">\n//<!--\n".
+ $javascript."\n// --></script>\n";
- $r->print(
- '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
-
-
- $r->print('<h1>Upload file to Construction Space</h1>');
+ $r->print(&Apache::loncommon::start_page('Upload file to Construction Space',
+ $javascript));
- if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
- $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
- '</font></h3>');
- }
-
+ if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
+ $r->print('<h3><font color=red>'.&mt('Co-Author').': '.$uname.
+ &mt(' at ').$udom.'</font></h3>');
+ }
- if ($ENV{'form.phase'} eq 'two') {
- &phasetwo($r,$fn,$uname,$udom);
- } else {
- &phaseone($r,$fn,$uname,$udom);
- }
+ if ($env{'form.phase'} eq 'two') {
+ &phasetwo($r,$fn,$uname,$udom);
+ } else {
+ &phaseone($r,$fn,$uname,$udom);
+ }
- $r->print('</body></html>');
- return OK;
+ $r->print(&Apache::loncommon::end_page());
+ return OK;
}
+
+1;
+__END__
+
+=head1 NAME
+
+Apache::lonupload - upload files into construction space
+
+=head1 SYNOPSIS
+
+Invoked by /etc/httpd/conf/srm.conf:
+
+ <Location /adm/upload>
+ PerlAccessHandler Apache::lonacc
+ SetHandler perl-script
+ PerlHandler Apache::lonupload
+ ErrorDocument 403 /adm/login
+ ErrorDocument 404 /adm/notfound.html
+ ErrorDocument 406 /adm/unauthorized.html
+ ErrorDocument 500 /adm/errorhandler
+ </Location>
+
+=head1 INTRODUCTION
+
+This module uploads a file sitting on a client computer into
+library server construction space.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 HANDLER SUBROUTINE
+
+This routine is called by Apache and mod_perl.
+
+=over 4
+
+=item *
+
+Initialize variables
+
+=item *
+
+Start page output
+
+=item *
+
+output relevant interface phase (phaseone or phasetwo)
+
+=item *
+
+(phase one is to specify upload file; phase two is to handle conditions
+subsequent to specification--like overwriting an existing file)
+
+=back
+
+=head1 OTHER SUBROUTINES
+
+=over 4
+
+=item *
+
+phaseone() : Interface for specifying file to upload.
+
+=item *
+
+phasetwo() : Interface for handling post-conditions about uploading (such
+as overwriting an existing file).
+
+=item *
+
+upfile_store() : Store contents of uploaded file into temporary space. Invoked
+by phaseone subroutine.
+
+=back
+
+=cut