File:
[LON-CAPA] /
loncom /
publisher /
lonpubdir.pm
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1.18:
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Mon Dec 17 00:57:59 2001 UTC (22 years, 8 months ago) by
harris41
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adding in POD documentation; changing void context map statements to
foreach statements; removing references to Apache::lonnet::fileembstyle
and using Apache::loncommon::fileembstyle -Scott Harrison
# The LearningOnline Network with CAPA
# (Publication Handler
#
# $Id: lonpubdir.pm,v 1.18 2001/12/17 00:57:59 harris41 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/
#
#
# (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)
# 03/31,04/03,05/09,06/23,08/18,08/20 Gerd Kortemeyer
# 12/15 Scott Harrison
#
###
package Apache::lonpubdir;
use strict;
use Apache::File;
use File::Copy;
use Apache::Constants qw(:common :http :methods);
use Apache::loncacc;
use Apache::loncommon();
sub handler {
my $r=shift;
my $fn;
if ($ENV{'form.filename'}) {
$fn=$ENV{'form.filename'};
$fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
$fn=~s/\/[^\/]+$//;
} else {
$fn=$r->filename();
}
my $uname;
my $udom;
($uname,$udom)=
&Apache::loncacc::constructaccess(
$fn,$r->dir_config('lonDefDomain'));
unless (($uname) && ($udom)) {
$r->log_reason($uname.' at '.$udom.
' trying to publish file '.$ENV{'form.filename'}.
' ('.$fn.') - not authorized',
$r->filename);
return HTTP_NOT_ACCEPTABLE;
}
$fn=~s/\/$//;
unless ($fn) {
$r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
' trying to list empty directory', $r->filename);
return HTTP_NOT_FOUND;
}
# ----------------------------------------------------------- Start page output
$r->content_type('text/html');
$r->send_http_header;
$r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
$r->print(
'<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
my $thisdisfn=$fn;
$thisdisfn=~s/^\/home\/$uname\/public_html//;
$r->print('<h1>Construction Space Directory <tt>'.$thisdisfn.'/</tt></h1>');
if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
$r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
'</font></h3>');
}
my $docroot=$r->dir_config('lonDocRoot');
my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn;
my $linkdir='/~'.$uname.$thisdisfn;
$r->print('<table border=2>'.
'<tr><th>Filename</th><th>Modified</th><th>Status</th><th> </th></tr>');
my $filename;
my $dirptr=16384;
opendir(DIR,$fn);
my @files=sort(readdir(DIR));
foreach my $filename (@files) {
my ($cdev,$cino,$cmode,$cnlink,
$cuid,$cgid,$crdev,$csize,
$catime,$cmtime,$cctime,
$cblksize,$cblocks)=stat($fn.'/'.$filename);
my $extension='';
if ($filename=~/\.(\w+)$/) { $extension=$1; }
if ($cmode&$dirptr) {
my $disfilename=$filename;
if ($filename eq '..') {
$disfilename='<i>Parent Directory</i>';
}
unless ((($filename eq '..') && ($thisdisfn eq '')) ||
($filename eq '.')) {
$r->print('<tr bgcolor=#BBBBFF'.
'><td><a href="'.$linkdir.'/'.$filename.'">'.$disfilename.
'</a></td><td>'.localtime($cmtime).'</td><td> </td><td> </td></tr>'
);
}
} elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') {
my $status='Unpublished';
my $bgcol='#FFBBBB';
if (-e $resdir.'/'.$filename) {
my ($rdev,$rino,$rmode,$rnlink,
$ruid,$rgid,$rrdev,$rsize,
$ratime,$rmtime,$rctime,
$rblksize,$rblocks)=stat($resdir.'/'.$filename);
if ($rmtime>=$cmtime) {
$status='Published';
$bgcol='#BBFFBB';
} else {
$status='Modified';
$bgcol='#FFFFBB';
if
(&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
$status.='<br><a href="/adm/diff?filename=/~'.$uname.
$thisdisfn.'/'.$filename.
'&versionone=priv" target=cat>Diffs</a>';
}
}
$status.='<br><a href="/adm/retrieve?filename=/~'.$uname.
$thisdisfn.'/'.$filename.'" target=cat>Retrieve</a>';
}
$r->print('<tr bgcolor='.$bgcol.
'><td><a href="'.$linkdir.'/'.$filename.'">'.$filename.
'</a></td><td>'.localtime($cmtime).'</td><td>'.$status.'</td>'.
'<td><a target="_parent" href="/adm/publish?filename=/~'.$uname.
$thisdisfn.'/'.$filename.'">'.
'Publish</a></td></tr>');
} else {
# "hidden" extension and not a directory, so hide it away.
}
}
closedir(DIR);
$r->print('</table></body></html>');
return OK;
}
1;
__END__
=head1 NAME
Apache::lonpubdir - Publication Handler for Directories
=head1 SYNOPSIS
Invoked (for various locations) by /etc/httpd/conf/srm.conf:
<LocationMatch "^/\~.*/$">
PerlAccessHandler Apache::loncacc
SetHandler perl-script
PerlHandler Apache::lonpubdir
ErrorDocument 403 /adm/login
ErrorDocument 404 /adm/notfound.html
ErrorDocument 406 /adm/unauthorized.html
ErrorDocument 500 /adm/errorhandler
</LocationMatch>
<Location /adm/pubdir>
PerlAccessHandler Apache::lonacc
SetHandler perl-script
PerlHandler Apache::lonpubdir
ErrorDocument 403 /adm/login
ErrorDocument 404 /adm/notfound.html
ErrorDocument 406 /adm/unauthorized.html
ErrorDocument 500 /adm/errorhandler
</Location>
=head1 INTRODUCTION
This module publishes a directory of files.
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 *
read in information
=item *
start page output
=item *
run through list of files and attempt to publish unhidden files
=back
=cut
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