--- loncom/publisher/lonupload.pm 2002/08/05 02:22:56 1.11
+++ loncom/publisher/lonupload.pm 2008/12/12 02:32:27 1.42
@@ -1,7 +1,8 @@
+
# The LearningOnline Network with CAPA
# Handler to upload files into construction space
#
-# $Id: lonupload.pm,v 1.11 2002/08/05 02:22:56 foxr Exp $
+# $Id: lonupload.pm,v 1.42 2008/12/12 02:32:27 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,220 +26,8 @@
#
# http://www.lon-capa.org/
#
-# (Handler to retrieve an old version of a file
-#
-# (Publication Handler
-#
-# (TeX Content Handler
-#
-# YEAR=2000
-# 05/29/00,05/30,10/11 Gerd Kortemeyer)
-#
-# 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
-# YEAR=2001
-# 03/23 Guy Albertelli
-# 03/24,03/29 Gerd Kortemeyer)
-#
-# 03/31,04/03 Gerd Kortemeyer)
-#
-# 04/05,04/09,05/25,06/23,06/24,08/22 Gerd Kortemeyer
-# 11/29 Matthew Hall
-# 12/16 Scott Harrison
-#
###
-package Apache::lonupload;
-
-use strict;
-use Apache::File;
-use File::Copy;
-use Apache::Constants qw(:common :http :methods);
-use Apache::loncacc;
-use Apache::loncommon();
-
-sub upfile_store {
- my $r=shift;
-
- my $fname=$ENV{'form.upfile.filename'};
- $fname=~s/\W//g;
-
- chop($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;
-
- if (($fn) && ($fn!~/\/$/)) {
- $r->print(
- '');
- # Check for bad extension and warn user
- if ($fn=~/\.(\w+)$/ &&
- (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
- $r->print(
- ''.
- 'The extension on this file, "'.$1.
- '", is reserved internally by LON-CAPA.
'.
- 'Please change the extension.'.
- '');
- } elsif($fn=~/\.(\w+)$/ &&
- !defined(&Apache::loncommon::fileembstyle($1))) {
- $r->print(
- ''.
- 'The extension on this file, "'.$1.
- '", is not recognized by LON-CAPA.
'.
- 'Please change the extension.'.
- '');
- }
- } else {
- $r->print('Illegal filename.');
- }
- } else {
- $r->print('No upload file specified.');
- }
-}
-
-sub phasetwo {
- my ($r,$fn,$uname,$udom)=@_;
- if ($fn=~/^\/priv\/$uname\//) {
- 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(
- '');
- } else {
- my $source=$r->dir_config('lonDaemons').
- '/tmp/'.$datatoken.'.tmp';
- # Check for bad extension and disallow upload
- if ($fn=~/\.(\w+)$/ &&
- (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
- $r->print(
- 'File '.$fn.' could not be copied.
'.
- ''.
- 'The extension on this file is reserved internally by LON-CAPA.'.
- '');
- } elsif ($fn=~/\.(\w+)$/ &&
- !defined(&Apache::loncommon::fileembstyle($1))) {
- $r->print(
- 'File '.$fn.' could not be copied.
'.
- ''.
- 'The extension on this file is not recognized by LON-CAPA.'.
- '');
- } elsif (copy($source,$target)) {
- chmod(0660, $target); # Set permissions to rw-rw---.
- $r->print('File copied.');
- $r->print('View file');
- } else {
- $r->print('Failed to copy: '.$!);
- }
- }
- } else {
- $r->print(
- 'Please pick a filename
');
- &phaseone($r,$fn,$uname,$udom);
- }
- } else {
- $r->print(
- 'Please pick a filename
');
- &phaseone($r,$fn,$uname,$udom);
- }
-}
-
-# ---------------------------------------------------------------- Main Handler
-sub handler {
-
- my $r=shift;
-
- my $uname;
- my $udom;
-
- ($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\:\/\/[^\/]+\/(\~|priv\/)(\w+)//;
- } 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;
-
- $r->print('
LON-CAPA Construction Space');
-
- $r->print(
- '
');
-
-
- $r->print('Upload file to Construction Space
');
-
- if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
- $r->print('Co-Author: '.$uname.' at '.$udom.
- '
');
- }
-
-
- if ($ENV{'form.phase'} eq 'two') {
- &phasetwo($r,$fn,$uname,$udom);
- } else {
- &phaseone($r,$fn,$uname,$udom);
- }
-
- $r->print('');
- return OK;
-}
-
-1;
-__END__
-
=head1 NAME
Apache::lonupload - upload files into construction space
@@ -281,33 +70,399 @@ Start page output
=item *
-output relevant interface phase (phaseone or phasetwo)
+output relevant interface phase (phaseone or phasetwo or phasethree)
=item *
(phase one is to specify upload file; phase two is to handle conditions
-subsequent to specification--like overwriting an existing file)
+subsequent to specification--like overwriting an existing file; phase three
+is to handle processing of secondary uploads - of embedded objects in an
+html file).
=back
=head1 OTHER SUBROUTINES
-=over 4
+=over
-=item *
+=item phaseone()
-phaseone() : Interface for specifying file to upload.
+Interface for specifying file to upload.
-=item *
+=item phasetwo()
-phasetwo() : Interface for handling post-conditions about uploading (such
+Interface for handling post-conditions about uploading (such
as overwriting an existing file).
-=item *
+=item phasethree()
+
+Interface for handling secondary uploads of embedded objects
+in an html file.
-upfile_store() : Store contents of uploaded file into temporary space. Invoked
+=item upfile_store()
+
+Store contents of uploaded file into temporary space. Invoked
by phaseone subroutine.
+=item check_extension()
+
+Checks if filename extension is permitted and checks type
+ of file - if html file, calls parser to check for embedded objects.
+ Invoked by phasetwo subroutine.
+
=back
=cut
+
+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;
+use LONCAPA();
+
+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'};
+ $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,$udom,$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) && ($fn!~/\/$/)) {
+ $r->print('');
+ # Check for bad extension and warn user
+ if ($fn=~/\.(\w+)$/ &&
+ (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
+ $r->print(''
+ .&mt('The extension on this file, [_1], is reserved internally by LON-CAPA.','"'.$1.'"')
+ .'
'.&mt('Please change the extension.')
+ .'
');
+ } elsif($fn=~/\.(\w+)$/ &&
+ !defined(&Apache::loncommon::fileembstyle($1))) {
+ $r->print(''
+ .&mt('The extension on this file, [_1], is not recognized by LON-CAPA.','"'.$1.'"')
+ .'
'.&mt('Please change the extension.')
+ .'
');
+ }
+ } else {
+ $r->print(''.&mt('Illegal filename.').'');
+ }
+ } else {
+ $r->print(''.&mt('No upload file specified.').'');
+ }
+}
+
+sub phasetwo {
+ my ($r,$tfn,$uname,$udom,$mode)=@_;
+ my $output;
+ 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 ($env{'form.cancel'}) {
+ my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
+ my $dirpath=$path.'/';
+ $dirpath=~s/\/+/\//g;
+ $output .= &mt('Upload cancelled.').'
'.
+ &mt('Back to Directory').'';
+ } elsif ((-e $target) && (!$env{'form.override'})) {
+ $output .= '';
+ } else {
+ my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
+ my $dirpath=$path.'/';
+ $dirpath=~s/\/+/\//g;
+ # Check for bad extension and disallow upload
+ my $result;
+ ($result,$returnflag) = &check_extension($fn,$mode,$source,$target,$action,$dirpath,$url);
+ $output .= $result;
+ }
+ } else {
+ $output .= ''.
+ &mt('Please use browser "Back" button and pick a filename').
+ '
';
+ }
+ } else {
+ $output .= ''.
+ &mt('Please use browser "Back" button and pick a filename').
+ '
';
+ }
+ return ($output,$returnflag);
+}
+
+sub check_extension {
+ my ($fn,$mode,$source,$target,$action,$dirpath,$url) = @_;
+ my ($result,$returnflag);
+ # Check for bad extension and disallow upload
+ if ($fn=~/\.(\w+)$/ &&
+ (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
+ $result .= &mt('File [_1] could not be copied.',
+ ''.$fn.' ').
+ ''.
+ &mt('The extension on this file is reserved internally by LON-CAPA.').
+ '
';
+ } elsif ($fn=~/\.(\w+)$/ &&
+ !defined(&Apache::loncommon::fileembstyle($1))) {
+ $result .= &mt('File [_1] could not be copied.',
+ ''.$fn.' ').
+ ''.
+ &mt('The extension on this file is not recognized by LON-CAPA.').
+ '
';
+ } elsif (-d $target) {
+ $result .= &mt('File [_1] could not be copied.',
+ ''.$fn.'').
+ ''.
+ &mt('The target is an existing directory.').
+ '
';
+ } elsif (copy($source,$target)) {
+ chmod(0660, $target); # Set permissions to rw-rw---.
+ if ($mode eq 'testbank' || $mode eq 'imsimport') {
+ $returnflag = 'ok';
+ $result .= &mt('Your file - [_1] - was uploaded successfully',$fn).'
';
+ } else {
+ $result .= &mt('File copied.').'
';
+ }
+ # Check for embedded objects.
+ my (%allfiles,%codebase);
+ my ($text,$header,$css,$js);
+ if (($mode ne 'imsimport') && ($target =~ /\.(htm|html|shtml)$/i)) {
+ my (%allfiles,%codebase);
+ &Apache::lonnet::extract_embedded_items($target,\%allfiles,\%codebase);
+ if (keys(%allfiles) > 0) {
+ my $state = <
+
+
+
+
+STATE
+ $result .= "".&mt("Reference Warning")."
".
+ "".&mt("Completed upload of the file. This file contained references to other files.")."
".
+ "".&mt("Please select the locations from which the referenced files are to be uploaded.")."
".
+ &Apache::loncommon::ask_for_embedded_content($action,$state,\%allfiles,\%codebase,
+ {'error_on_invalid_names' => 1,
+ 'ignore_remote_references' => 1,});
+ if ($mode eq 'testbank') {
+ $returnflag = 'embedded';
+ $result .= ''.&mt('Or [_1]continue[_2] the testbank import without these files','','').'
';
+ }
+ }
+ }
+ if (($mode ne 'imsimport') && ($mode ne 'testbank')) {
+ $result .= '
'.
+ &mt('View file').'';
+ }
+ } else {
+ $result .= &mt('Failed to copy: [_1].',$!);
+ }
+ if ($mode ne 'imsimport' && $mode ne 'testbank') {
+ $result .= '
'.
+ &mt('Back to Directory').'
';
+ }
+ return ($result,$returnflag);
+}
+
+sub phasethree {
+ my ($r,$fn,$uname,$udom,$mode) = @_;
+ my $result;
+ my $dir_root = '/home/'.$uname.'/public_html';
+ my $url_root = '/priv/'.$uname;
+ my $base = &File::Basename::basename($fn);
+ my $path = &File::Basename::dirname($fn);
+ $result = &Apache::loncommon::upload_embedded($mode,$path,$uname,$udom,
+ $dir_root,$url_root);
+ if ($mode ne 'imsimport' && $mode ne 'testbank') {
+ $result = '
'.
+ &mt('View main file').''.
+ '
'.
+ &mt('Back to Directory').'
';
+ }
+ return $result;
+}
+
+# ---------------------------------------------------------------- Main Handler
+sub handler {
+
+ my $r=shift;
+
+ my $uname;
+ my $udom;
+ my $javascript = '';
+#
+# phase two: re-attach user
+#
+ if ($env{'form.uploaduname'}) {
+ $env{'form.filename'}='/priv/'.$env{'form.uploaduname'}.'/'.
+ $env{'form.filename'};
+ }
+
+ unless ($env{'form.phase'} eq 'two') {
+ $javascript = qq|
+function verifyForm() {
+ var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value
+ if (mode == "testbank") {
+ document.fileupload.action = "/adm/testbank";
+ }
+ if (mode == "imsimport") {
+ document.fileupload.action = "/adm/imsimport";
+ }
+ if (mode == "standard") {
+ document.fileupload.action = "/adm/upload";
+ }
+ document.fileupload.submit();
+}
+ |;
+ }
+ ($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/^\///;
+ $fn=~s{(~|priv/)($LONCAPA::username_re)}{};
+ $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;
+
+ $javascript = "\n";
+
+ $r->print(&Apache::loncommon::start_page('Upload file to Construction Space',
+ $javascript));
+
+ if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
+ $r->print(''.&mt('Co-Author').': '.$uname.
+ &mt(' at ').$udom.'
');
+ }
+
+ if ($env{'form.phase'} eq 'three') {
+ my $output = &phasethree($r,$fn,$uname,$udom,'author');
+ $r->print($output);
+ } elsif ($env{'form.phase'} eq 'two') {
+ my ($output,$returnflag) = &phasetwo($r,$fn,$uname,$udom);
+ $r->print($output);
+ } else {
+ &phaseone($r,$fn,$uname,$udom);
+ }
+
+ $r->print(&Apache::loncommon::end_page());
+ return OK;
+}
+
+1;
+__END__
+
+