version 1.1, 2001/04/05 19:35:15
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version 1.55, 2011/10/26 22:38:49
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Handler to upload files into construction space |
# Handler to upload files into construction space |
# |
# |
# (Handler to retrieve an old version of a file |
# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
# |
# |
# (Publication Handler |
# 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 |
# (TeX Content Handler |
# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
# |
# |
# 05/29/00,05/30,10/11 Gerd Kortemeyer) |
# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
# |
# |
# 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer |
# You should have received a copy of the GNU General Public License |
# 03/23 Guy Albertelli |
# along with LON-CAPA; if not, write to the Free Software |
# 03/24,03/29 Gerd Kortemeyer) |
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
# |
# |
# 03/31,04/03 Gerd Kortemeyer) |
# /home/httpd/html/adm/gpl.txt |
# |
# |
# 04/05 Gerd Kortemeyer |
# http://www.lon-capa.org/ |
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# |
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### |
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=head1 NAME |
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Apache::lonupload - upload files into construction space |
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=head1 SYNOPSIS |
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Invoked by /etc/httpd/conf/srm.conf: |
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<Location /adm/upload> |
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PerlAccessHandler Apache::lonacc |
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SetHandler perl-script |
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PerlHandler Apache::lonupload |
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ErrorDocument 403 /adm/login |
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ErrorDocument 404 /adm/notfound.html |
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ErrorDocument 406 /adm/unauthorized.html |
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ErrorDocument 500 /adm/errorhandler |
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</Location> |
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=head1 INTRODUCTION |
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This module uploads a file sitting on a client computer into |
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library server construction space. |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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=head1 HANDLER SUBROUTINE |
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This routine is called by Apache and mod_perl. |
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=over 4 |
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=item * |
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Initialize variables |
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=item * |
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Start page output |
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=item * |
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output relevant interface phase (phaseone, phasetwo, phasethree or phasefour) |
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=item * |
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(phase one is to specify upload file; phase two is to handle conditions |
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subsequent to specification--like overwriting an existing file; phase three |
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is to handle processing of secondary uploads - of embedded objects in an |
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html file). |
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=back |
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=head1 OTHER SUBROUTINES |
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=over |
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=item phaseone() |
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Interface for specifying file to upload. |
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=item phasetwo() |
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Interface for handling post-conditions about uploading (such |
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as overwriting an existing file). |
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=item phasethree() |
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Interface for handling secondary uploads of embedded objects |
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in an html file. |
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=item phasefour() |
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Interface for handling optional renaming of links to embedded |
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objects. |
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=item upfile_store() |
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Store contents of uploaded file into temporary space. Invoked |
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by phaseone subroutine. |
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=item check_extension() |
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Checks if filename extension is permitted and checks type |
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of file - if html file, calls parser to check for embedded objects. |
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Invoked by phasetwo subroutine. |
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=back |
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=cut |
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package Apache::lonupload; |
package Apache::lonupload; |
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use strict; |
use strict; |
use Apache::File; |
use Apache::File; |
use File::Copy; |
use File::Copy; |
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use File::Basename; |
use Apache::Constants qw(:common :http :methods); |
use Apache::Constants qw(:common :http :methods); |
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use Apache::loncacc; |
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use Apache::loncommon(); |
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use Apache::lonnet; |
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use HTML::Entities(); |
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use Apache::lonlocal; |
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use Apache::lonnet; |
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use LONCAPA(); |
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my $DEBUG=0; |
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sub Debug { |
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# Put out the indicated message but only if DEBUG is true. |
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if ($DEBUG) { |
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my ($r,$message) = @_; |
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$r->log_reason($message); |
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} |
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} |
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sub upfile_store { |
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my $r=shift; |
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my $fname=$env{'form.upfile.filename'}; |
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$fname=~s/\W//g; |
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chomp($env{'form.upfile'}); |
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my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}. |
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'_upload_'.$fname.'_'.time.'_'.$$; |
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{ |
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my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons'). |
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'/tmp/'.$datatoken.'.tmp'); |
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print $fh $env{'form.upfile'}; |
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} |
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return $datatoken; |
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} |
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sub phaseone { |
sub phaseone { |
my ($r,$fn,$uname,$udom)=@_; |
my ($r,$fn,$uname,$udom,$mode)=@_; |
my $docroot=$r->dir_config('lonDocRoot'); |
my $action = '/adm/upload'; |
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if ($mode eq 'testbank') { |
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$action = '/adm/testbank'; |
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} elsif ($mode eq 'imsimport') { |
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$action = '/adm/imsimport'; |
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} |
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my $urldir='/res/'.$udom.'/'.$uname.$fn; |
# Check for file to be uploaded |
$urldir=~s/\/[^\/]+$/\//; |
$env{'form.upfile.filename'}=~s/\\/\//g; |
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$env{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/; |
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if (!$env{'form.upfile.filename'}) { |
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$r->print('<p class="LC_warning">'.&mt('No upload file specified.').'</p>'); |
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return; |
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} |
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my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn; |
# Append the name of the uploaded file |
my $resdir=$resfn; |
$fn.=$env{'form.upfile.filename'}; |
$resdir=~s/\/[^\/]+$/\//; |
$fn=~s/(\/)+/\//g; |
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$fn=~/^\/(.+)\.(\w+)$/; |
# Check for illegal filename |
my $main=$1; |
&Debug($r, "Filename for upload: $fn"); |
my $suffix=$2; |
if (!(($fn) && ($fn!~/\/$/))) { |
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$r->print('<p class="LC_warning">'.&mt('Illegal filename.').'</p>'); |
$r->print('<form action=/adm/retrieve method=post>'. |
return; |
'<input type=hidden name=filename value="'.$fn.'">'. |
} |
'<input type=hidden name=phase value=two>'. |
# Split part that I can change from the part that I cannot change |
'<table border=2><tr><th>Select</th><th>Version</th>'. |
my ($fn1,$fn2)=($fn=~/^(\/priv\/[^\/]+\/[^\/]+\/)(.*)$/); |
'<th>Became this version on ...</th>'. |
# Display additional options for upload |
'<th>Metadata</th></tr>'); |
# and upload button |
my $filename; |
$r->print( |
opendir(DIR,$resdir); |
'<form action="'.$action.'" method="post" name="fileupload">' |
while ($filename=readdir(DIR)) { |
.'<input type="hidden" name="phase" value="two" />' |
if ($filename=~/^$main\.(\d+)\.$suffix$/) { |
.'<input type="hidden" name="datatoken" value="'.&upfile_store.'" />' |
my $version=$1; |
); |
my ($rdev,$rino,$rmode,$rnlink, |
$r->print( |
$ruid,$rgid,$rrdev,$rsize, |
&Apache::lonhtmlcommon::start_pick_box() |
$ratime,$rmtime,$rctime, |
.&Apache::lonhtmlcommon::row_title(&mt('Save uploaded file as')) |
$rblksize,$rblocks)=stat($resdir.'/'.$filename); |
.'<span class="LC_filename">'.$fn1.'</span>' |
$r->print('<tr><td><input type=radio name=version value="'. |
.'<input type="hidden" name="filename1" value="'.$fn1.'" />' |
$version.'"></td><th>'.$version.'</th><td>'. |
.'<input type="text" size="50" name="filename2" value="'.$fn2.'" />' |
localtime($rmtime).'</td><td>'. |
.&Apache::lonhtmlcommon::row_closure() |
'<a href="'.$urldir.$filename.'.meta" target=cat>'. |
.&Apache::lonhtmlcommon::row_title(&mt('File Type')) |
'Metadata Version '.$version.'</a></td></tr>'); |
.'<select name="filetype">' |
} |
.'<option value="standard" selected="selected">'.&mt('Regular file').'</option>' |
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.'<option value="testbank">'.&mt('Testbank file').'</option>' |
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.'<option value="imsimport">'.&mt('IMS package').'</option>' |
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.'</select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options") |
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.&Apache::lonhtmlcommon::row_closure(1) |
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.&Apache::lonhtmlcommon::end_pick_box() |
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); |
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$r->print( |
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'<p>' |
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.'<input type="button" value="'.&mt('Upload').'" onclick="javascript:verifyForm()"/>' |
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.'</p>' |
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.'</form>' |
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); |
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# Check for bad extension and warn user |
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if ($fn=~/\.(\w+)$/ && |
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(&Apache::loncommon::fileembstyle($1) eq 'hdn')) { |
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$r->print('<p class="LC_error">' |
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.&mt('The extension on this file, [_1], is reserved internally by LON-CAPA.', |
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'<span class="LC_filename">'.$1.'</span>') |
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.' <br />'.&mt('Please change the extension.') |
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.'</p>'); |
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} elsif($fn=~/\.(\w+)$/ && |
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!defined(&Apache::loncommon::fileembstyle($1))) { |
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$r->print('<p class="LC_error">' |
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.&mt('The extension on this file, [_1], is not recognized by LON-CAPA.', |
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'<span class="LC_filename">'.$1.'</span>') |
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.' <br />'.&mt('Please change the extension.') |
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.'</p>'); |
} |
} |
closedir(DIR); |
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my ($rdev,$rino,$rmode,$rnlink, |
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$ruid,$rgid,$rrdev,$rsize, |
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$ratime,$rmtime,$rctime, |
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$rblksize,$rblocks)=stat($resfn); |
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$r->print('<tr><td><input type=radio name=version value="new"></td>'. |
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'<th>Current</th><td>'.localtime($rmtime). |
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'</td><td><a href="'.$urldir.$main.'.'.$suffix.'.meta" target=cat>'. |
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'Metadata current version</a></td></tr></table><p>'. |
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'<font size=+1 color=red>Retrieval of an old version will '. |
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'overwrite the file currently in construction space</font><p>'. |
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'<input type=submit value="Retrieve version"></form>'); |
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} |
} |
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sub phasetwo { |
sub phasetwo { |
my ($r,$fn,$uname,$udom)=@_; |
my ($r,$fn,$uname,$udom,$mode)=@_; |
if ($ENV{'form.version'}) { |
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my $version=$ENV{'form.version'}; |
my $output; |
if ($version eq 'new') { |
my $action = '/adm/upload'; |
$r->print('<h3>Retrieving current (most recent) version</h3>'); |
my $returnflag = ''; |
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if ($mode eq 'testbank') { |
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$action = '/adm/testbank'; |
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} elsif ($mode eq 'imsimport') { |
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$action = '/adm/imsimport'; |
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} |
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$fn=~s/\/+/\//g; |
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if ($fn) { |
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my $target='/home/httpd/html/'.$fn; |
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&Debug($r, "target -> ".$target); |
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# target is the full filesystem path of the destination file. |
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my $base = &File::Basename::basename($fn); |
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my $path = &File::Basename::dirname($fn); |
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$base = &HTML::Entities::encode($base,'<>&"'); |
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my $url = $path."/".$base; |
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&Debug($r, "URL is now ".$url); |
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my $datatoken=$env{'form.datatoken'}; |
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if (($fn) && ($datatoken)) { |
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if ($env{'form.cancel'}) { |
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my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp'; |
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my $dirpath=$path.'/'; |
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$dirpath=~s/\/+/\//g; |
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$output .= '<p class="LC_warning">'.&mt('Upload cancelled.').'</p>' |
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.'<p><a href="'.$dirpath.'">'. |
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&mt('Back to Directory').'</a></p>'; |
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} elsif ((-e $target) && (!$env{'form.override'})) { |
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$output .= '<form action="'.$action.'" method="post">' |
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.'<p class="LC_warning">' |
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.&mt('File [_1] already exists.', |
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'<span class="LC_filename">'.$fn.'</span>') |
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.'<input type="hidden" name="phase" value="two" />' |
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.'<input type="hidden" name="filename" value="'.$url.'" />' |
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.'<input type="hidden" name="datatoken" value="'.$datatoken.'" />' |
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.'<p>' |
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.'<input type="submit" name="cancel" value="'.&mt('Cancel').'" />' |
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.' <input type="submit" name="override" value="'.&mt('Overwrite').'" />' |
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.'</p>' |
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.'</form>'; |
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} else { |
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my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp'; |
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my $dirpath=$path.'/'; |
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$dirpath=~s/\/+/\//g; |
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# Check for bad extension and disallow upload |
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my $result; |
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($result,$returnflag) = &check_extension($fn,$mode,$source,$target,$action,$dirpath,$url); |
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$output .= $result; |
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} |
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} else { |
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$output .= '<span class="LC_error">'. |
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&mt('Please use browser "Back" button and pick a filename'). |
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'</span><br />'; |
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} |
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} else { |
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$output .= '<span class="LC_error">'. |
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&mt('Please use browser "Back" button and pick a filename'). |
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'</span><br />'; |
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} |
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return ($output,$returnflag); |
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} |
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sub check_extension { |
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my ($fn,$mode,$source,$target,$action,$dirpath,$url) = @_; |
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my ($result,$returnflag); |
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# Check for bad extension and disallow upload |
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if ($fn=~/\.(\w+)$/ && |
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(&Apache::loncommon::fileembstyle($1) eq 'hdn')) { |
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$result .= '<p class="LC_warning">'. |
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&mt('File [_1] could not be copied.', |
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'<span class="LC_filename">'.$fn.'</span> '). |
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'<br />'. |
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&mt('The extension on this file is reserved internally by LON-CAPA.'). |
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'</p>'; |
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} elsif ($fn=~/\.(\w+)$/ && |
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!defined(&Apache::loncommon::fileembstyle($1))) { |
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$result .= '<p class="LC_warning">'. |
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&mt('File [_1] could not be copied.', |
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'<span class="LC_filename">'.$fn.'</span> '). |
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'<br />'. |
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&mt('The extension on this file is not recognized by LON-CAPA.'). |
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'</p>'; |
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} elsif (-d $target) { |
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$result .= '<p class="LC_warning">'. |
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&mt('File [_1] could not be copied.', |
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'<span class="LC_filename">'.$fn.'</span>'). |
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'<br />'. |
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&mt('The target is an existing directory.'). |
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'</p>'; |
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} elsif (copy($source,$target)) { |
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chmod(0660, $target); # Set permissions to rw-rw---. |
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if ($mode eq 'testbank' || $mode eq 'imsimport') { |
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$returnflag = 'ok'; |
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$result .= '<p class="LC_success">' |
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.&mt('Your file - [_1] - was uploaded successfully.', |
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'<span class="LC_filename">'.$fn.'<span>') |
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.'</p>'; |
} else { |
} else { |
$r->print('<h3>Retrieving old version '.$version.'</h3>'); |
$result .= '<p class="LC_success">' |
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.&mt('File copied.') |
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.'</p>'; |
} |
} |
my $logfile; |
# Check for embedded objects. |
my $ctarget='/home/'.$uname.'/public_html'.$fn; |
my (%allfiles,%codebase); |
my $vfn=$fn; |
my ($text,$header,$css,$js); |
if ($version ne 'new') { |
if (($mode ne 'imsimport') && ($target =~ /\.(htm|html|shtml)$/i)) { |
$vfn=~s/\.(\w+)$/\.$version\.$1/; |
my (%allfiles,%codebase); |
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&Apache::lonnet::extract_embedded_items($target,\%allfiles,\%codebase); |
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if (keys(%allfiles) > 0) { |
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my ($currentpath) = ($url =~ m{^(.+)/[^/]+$}); |
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my $state = &embedded_form_elems('upload_embedded',$url,$mode); |
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my ($embedded,$num,$pathchg) = |
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&Apache::loncommon::ask_for_embedded_content($action,$state,\%allfiles, |
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\%codebase, |
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{'error_on_invalid_names' => 1, |
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'ignore_remote_references' => 1, |
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'current_path' => $currentpath}); |
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if ($embedded) { |
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$result .= '<h3>'.&mt('Reference Warning').'</h3>'; |
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if ($num) { |
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$result .= '<p>'.&mt('Completed upload of the file.').' '.&mt('This file contained references to other files.').'</p>'. |
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'<p>'.&mt('Please select the locations from which the referenced files are to be uploaded.').'</p>'. |
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$embedded; |
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if ($mode eq 'testbank') { |
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$returnflag = 'embedded'; |
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$result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without these files.','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>'; |
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} |
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} else { |
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$result .= '<p>'.&mt('Completed upload of the file.').'</p>'.$embedded; |
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if ($pathchg) { |
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if ($mode eq 'testbank') { |
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$returnflag = 'embedded'; |
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$result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the references(s).','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>'; |
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} |
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} |
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} |
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} |
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} |
} |
} |
my $csource=$r->dir_config('lonDocRoot').'/res/'.$udom.'/'.$uname.$vfn; |
if (($mode ne 'imsimport') && ($mode ne 'testbank')) { |
unless ($logfile=Apache::File->new('>>'.$ctarget.'.log')) { |
$result .= '<br /><a href="'.$url.'">'. |
$r->print( |
&mt('View file').'</a>'; |
'<font color=red>No write permission to user directory, FAIL</font>'); |
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} |
} |
print $logfile |
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"\n\n================= Retrieve ".localtime()." ================\n". |
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"Version: $version\nSource: $csource\nTarget: $ctarget\n"; |
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$r->print('<p>Copying file: '); |
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if (copy($csource,$ctarget)) { |
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$r->print('ok<p>'); |
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print $logfile "Copied sucessfully.\n\n"; |
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} else { |
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my $error=$!; |
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$r->print('fail, '.$error.'<p>'); |
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print $logfile "Copy failed: $error\n\n"; |
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} |
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$r->print('<font size=+2><a href="/priv/'.$uname.$fn. |
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'">Back to '.$fn.'</a></font>'); |
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} else { |
} else { |
$r->print( |
$result .= &mt('Failed to copy: [_1].',$!); |
'<font size=+1 color=red>Please pick a version to retrieve</font><p>'); |
} |
&phaseone($r,$fn,$uname,$udom); |
if ($mode ne 'imsimport' && $mode ne 'testbank') { |
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$result .= '<br /><a href="'.$dirpath.'">'. |
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&mt('Back to Directory').'</a><br />'; |
} |
} |
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return ($result,$returnflag); |
} |
} |
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sub phasethree { |
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my ($r,$fn,$uname,$udom,$mode) = @_; |
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my $action = '/adm/upload'; |
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if ($mode eq 'testbank') { |
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$action = '/adm/testbank'; |
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} elsif ($mode eq 'imsimport') { |
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$action = '/adm/imsimport'; |
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} |
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my $dir_root = '/home/httpd/html/priv/'.$udom.'/'.$uname; |
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my $url_root = '/priv/'.$udom.'/'.$uname; |
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my $path = &File::Basename::dirname($fn); |
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my $filename = &HTML::Entities::encode($env{'form.filename'},'<>&"'); |
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my $state = &embedded_form_elems('modify_orightml',$filename,$mode). |
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'<input type="hidden" name="phase" value="four" />'; |
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my ($result,$returnflag) = |
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&Apache::loncommon::upload_embedded($mode,$path,$uname,$udom, |
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$dir_root,$url_root,undef, |
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undef,undef,$state,$action); |
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if ($mode ne 'imsimport' && $mode ne 'testbank') { |
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$result .= '<br /><h3><a href="'.$url_root.$fn.'">'. |
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&mt('View main file').'</a></h3>'. |
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'<h3><a href="'.$url_root.$path.'">'. |
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&mt('Back to Directory').'</a></h3><br />'; |
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} |
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return ($result,$returnflag); |
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} |
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sub embedded_form_elems { |
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my ($action,$filename,$mode) = @_; |
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return <<STATE; |
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<input type="hidden" name="action" value="$action" /> |
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<input type="hidden" name="mode" value="$mode" /> |
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<input type="hidden" name="filename" value="$filename" /> |
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STATE |
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} |
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sub phasefour { |
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my ($r,$fn,$uname,$udom,$mode) = @_; |
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my $action = '/adm/upload'; |
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if ($mode eq 'testbank') { |
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$action = '/adm/testbank'; |
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} elsif ($mode eq 'imsimport') { |
|
$action = '/adm/imsimport'; |
|
} |
|
my $result; |
|
my $dir_root = '/home/httpd/html/priv/'.$udom.'/'.$uname; |
|
my $url_root = '/priv/'.$udom.'/'.$uname; |
|
my $path = &File::Basename::dirname($fn); |
|
$result .= &Apache::loncommon::modify_html_refs($mode,$path, |
|
$uname,$udom,$dir_root); |
|
if ($mode ne 'imsimport' && $mode ne 'testbank') { |
|
$result .= '<br /><h3><a href="'.$url_root.$fn.'">'. |
|
&mt('View main file').'</a></h3>'. |
|
'<h3><a href="'.$url_root.$path.'">'. |
|
&mt('Back to Directory').'</a></h3><br />'; |
|
} |
|
return $result; |
|
} |
|
|
|
# ---------------------------------------------------------------- Main Handler |
sub handler { |
sub handler { |
|
|
my $r=shift; |
my $r=shift; |
|
|
my $fn; |
my $uname; |
|
my $udom; |
|
my $javascript = ''; |
|
|
if ($ENV{'form.filename'}) { |
my $fn=$env{'form.filename'}; |
$fn=$ENV{'form.filename'}; |
|
$fn=~s/^http\:\/\/[^\/]+\/\~(\w+)//; |
|
} else { |
|
$r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. |
|
' unspecified filename for retrieval', $r->filename); |
|
return HTTP_NOT_FOUND; |
|
} |
|
|
|
unless ($fn) { |
|
$r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. |
|
' trying to retrieve non-existing file', $r->filename); |
|
return HTTP_NOT_FOUND; |
|
} |
|
|
|
# ----------------------------------------------------------- Start page output |
if ($env{'form.filename1'}) { |
|
$fn=$env{'form.filename1'}.$env{'form.filename2'}; |
|
} |
|
$fn=~s/\/+/\//g; |
|
|
|
unless ($fn) { |
|
$r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}. |
|
' unspecified filename for upload', $r->filename); |
|
return HTTP_NOT_FOUND; |
|
} |
|
|
|
unless ($env{'form.phase'} eq 'two') { |
|
$javascript = qq| |
|
function verifyForm() { |
|
var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value |
|
if (mode == "testbank") { |
|
document.fileupload.action = "/adm/testbank"; |
|
} |
|
if (mode == "imsimport") { |
|
document.fileupload.action = "/adm/imsimport"; |
|
} |
|
if (mode == "standard") { |
|
document.fileupload.action = "/adm/upload"; |
|
} |
|
document.fileupload.submit(); |
|
} |
|
|; |
|
} |
|
($uname,$udom)=&Apache::loncacc::constructaccess($fn); |
|
|
my $uname=$ENV{'user.name'}; |
unless (($uname) && ($udom)) { |
my $udom=$ENV{'user.domain'}; |
$r->log_reason($uname.' at '.$udom. |
|
' trying to publish file '.$env{'form.filename'}. |
|
' - not authorized', |
|
$r->filename); |
|
return HTTP_NOT_ACCEPTABLE; |
|
} |
|
|
|
# ----------------------------------------------------------- Start page output |
|
|
$r->content_type('text/html'); |
|
$r->send_http_header; |
|
|
|
$r->print('<html><head><title>LON-CAPA Construction Space</title></head>'); |
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->send_http_header; |
|
|
$r->print( |
$javascript = "<script type=\"text/javascript\">\n//<!--\n". |
'<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>'); |
$javascript."\n// --></script>\n"; |
|
|
|
# Breadcrumbs |
|
my $brcrum = [{'href' => &Apache::loncommon::authorspace(), |
|
'text' => 'Construction Space'}, |
|
{'href' => '/adm/upload', |
|
'text' => 'Upload file to Construction Space'}]; |
|
$r->print(&Apache::loncommon::start_page('Upload file to Construction Space', |
|
$javascript, |
|
{'bread_crumbs' => $brcrum,}) |
|
.&Apache::loncommon::head_subbox( |
|
&Apache::loncommon::CSTR_pageheader()) |
|
); |
|
|
$r->print('<h1>Retrieve previous versions of <tt>'.$fn.'</tt></h1>'); |
if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) { |
|
$r->print('<p class="LC_info">' |
if ($ENV{'form.phase'} eq 'two') { |
.&mt('Co-Author [_1]',$uname.':'.$udom) |
&phasetwo($r,$fn,$uname,$udom); |
.'</p>' |
} else { |
); |
&phaseone($r,$fn,$uname,$udom); |
} |
} |
if ($env{'form.phase'} eq 'four') { |
|
my $output = &phasefour($r,$fn,$uname,$udom,'author'); |
|
$r->print($output); |
|
} elsif ($env{'form.phase'} eq 'three') { |
|
my ($output,$rtnflag) = &phasethree($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('</body></html>'); |
$r->print(&Apache::loncommon::end_page()); |
return OK; |
return OK; |
} |
} |
|
|
|
1; |
|
__END__ |
|
|
|
|