# The LearningOnline Network
# Documents
#
# $Id: londocs.pm,v 1.18 2002/09/04 19:24:46 www 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::londocs;
use strict;
use Apache::Constants qw(:common);
use Apache::lonnet;
use Apache::loncommon;
use Apache::lonratedt;
use Apache::lonratsrv;
use Apache::lonxml;
my $iconpath;
# Mapread read maps into lonratedt::global arrays
# @order and @resources, determines status
# sets @order - pointer to resources in right order
# sets @resources - array with the resources with correct idx
#
sub mapread {
my ($coursenum,$coursedom,$map)=@_;
return
&Apache::lonratedt::mapread('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
$map);
}
sub storemap {
my ($coursenum,$coursedom,$map)=@_;
return
&Apache::lonratedt::storemap('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
$map,1);
}
sub editor {
my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
if ($ENV{'form.foldername'}) {
$r->print('
Folder: '.$ENV{'form.foldername'}.'
');
}
my $errtext='';
my $fatal=0;
($errtext,$fatal)=
&mapread($coursenum,$coursedom,$folder.'.sequence');
if ($#Apache::lonratedt::order<1) {
$Apache::lonratedt::order[0]=1;
$Apache::lonratedt::resources[1]='';
}
if ($fatal) {
$r->print('
'.$errtext.'
');
} else {
# ------------------------------------------------------------ Process commands
# ---------------- if they are for this folder and user allowed to make changes
if (($allowed) && ($ENV{'form.folder'} eq $folder)) {
# upload a file, if present
if (($ENV{'form.uploaddoc.filename'}) &&
($ENV{'form.cmd'}=~/^upload_(\w+)/)) {
if ($folder=~/^$1/) {
# this is for a course, not a user, so set coursedoc flag
# probably the only place in the system where this should be "1"
my $url=&Apache::lonnet::userfileupload('uploaddoc',1);
my $ext='false';
if ($url=~/^http\:\/\//) { $ext='true'; }
$url=~s/\:/\:/g;
my $comment=$ENV{'form.comment'};
$comment=~s/\\<\;/g;
$comment=~s/\>/\>\;/g;
$comment=~s/\:/\:/g;
if ($folder=~/^supplemental/) {
$comment=time.'___&&&___'.$ENV{'user.name'}.'___&&&___'.
$ENV{'user.domain'}.'___&&&___'.$comment;
}
my $newidx=$#Apache::lonratedt::resources+1;
$Apache::lonratedt::resources[$newidx]=
$comment.':'.$url.':'.$ext.':normal:res';
$Apache::lonratedt::order[$#Apache::lonratedt::order+1]=
$newidx;
&storemap($coursenum,$coursedom,$folder.'.sequence');
}
}
if ($ENV{'form.cmd'}) {
my ($cmd,$idx)=split(/\_/,$ENV{'form.cmd'});
if ($cmd eq 'del') {
for (my $i=$idx;$i<$#Apache::lonratedt::order;$i++) {
$Apache::lonratedt::order[$i]=
$Apache::lonratedt::order[$i+1];
}
$#Apache::lonratedt::order--;
} elsif ($cmd eq 'up') {
my $i=$Apache::lonratedt::order[$idx-1];
$Apache::lonratedt::order[$idx-1]=
$Apache::lonratedt::order[$idx];
$Apache::lonratedt::order[$idx]=$i;
} elsif ($cmd eq 'down') {
my $i=$Apache::lonratedt::order[$idx+1];
$Apache::lonratedt::order[$idx+1]=
$Apache::lonratedt::order[$idx];
$Apache::lonratedt::order[$idx]=$i;
}
# Store the changed version
&storemap($coursenum,$coursedom,$folder.'.sequence');
}
# Group import/search
if ($ENV{'form.importdetail'}) {
foreach (split(/\&/,$ENV{'form.importdetail'})) {
if (defined($_)) {
my ($name,$url)=split(/\=/,$_);
$name=&Apache::lonnet::unescape($name);
$url=&Apache::lonnet::unescape($url);
if ($url) {
my $idx=$#Apache::lonratedt::resources+1;
$Apache::lonratedt::order
[$#Apache::lonratedt::order+1]=$idx;
my $ext='false';
if ($url=~/^http\:\/\//) { $ext='true'; }
$url=~s/\:/\:/g;
$Apache::lonratedt::resources[$idx]=
$name.':'.$url.':'.$ext.':normal:res';
}
}
}
# Store the changed version
&storemap($coursenum,$coursedom,$folder.'.sequence');
}
}
# ---------------------------------------------------------------- End commands
# ---------------------------------------------------------------- Print screen
my $idx=0;
$r->print('
');
}
}
# --------------------------------------------------------------- An entry line
sub entryline {
my ($index,$title,$url,$folder,$allowed)=@_;
my $line='
END
}
# Figure out what kind of a resource this is
my ($extension)=($url=~/\.(\w+)$/);
my $uploaded=($url=~/^\/*uploaded\//);
my $icon='unknown';
if (-e "/home/httpd/html/adm/lonIcons/$extension.gif") {
$icon=$extension;
}
my $isfolder=0;
if ($uploaded) {
if ($extension eq 'sequence') {
$icon='folder_closed';
$url=~/\/(\w+)\.sequence/;
$url='/adm/coursedocs?folder='.$1;
$isfolder=1;
} else {
$url=&Apache::lonnet::tokenwrapper($url);
}
}
$url=~s/^http\&colon\;\/\//\/adm\/wrapper\/ext\//;
# Title
$title=&Apache::lonnet::unescape($title);
my $foldertitle=$title;
if ($title=~
/^(\d+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(.*)$/
) {
$foldertitle=&Apache::lontexconvert::msgtexconverted($4);
$title=''.localtime($1).' '.
&Apache::loncommon::plainname($2,$3).': '.
$foldertitle;
}
if ($isfolder) { $url.='&foldername='.$foldertitle; }
$line.='
";
return $line;
}
# ================================================================ Main Handler
sub handler {
my $r = shift;
$r->content_type('text/html');
$r->send_http_header;
return OK if $r->header_only;
# is this a standard course?
my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
my $forcestandard;
my $forcesupplement;
my $script='';
my $allowed;
my $events='';
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['folder','foldername','showdoc']);
unless ($ENV{'form.showdoc'}) { # got called from remote
$forcestandard=($ENV{'form.folder'}=~/^default_/);
$forcesupplement=($ENV{'form.folder'}=~/^supplemental_/);
# does this user have privileges to post, etc?
$allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
if ($allowed) {
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
$script=&Apache::lonratedt::editscript('simple');
}
} else { # got called in sequence from course
$allowed=0;
$forcestandard=1;
$forcesupplement=0;
$script=&Apache::lonxml::registerurl(1,undef);
$events='onLoad="'.&Apache::lonxml::loadevents.
'" onUnload="'.&Apache::lonxml::unloadevents.'"';
}
# get course data
my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
# get personal data
my $uname=$ENV{'user.name'};
my $udom=$ENV{'user.domain'};
my $plainname=&Apache::lonnet::escape(
&Apache::loncommon::plainname($uname,$udom));
# graphics settings
$iconpath = $r->dir_config('lonIconsURL') . "/";
# print screen
$r->print(<The LearningOnline Network with CAPA
ENDDOCUMENT
$r->print(&Apache::loncommon::bodytag('Course Documents','',$events));
# --------------------------------------------------------- Standard documents
if (($standard) && ($allowed) && (!$forcesupplement)) {
$r->print('
Main Course Documents
');
my $folder=$ENV{'form.folder'};
unless ($folder=~/^default/) { $folder='default'; }
&editor($r,$coursenum,$coursedom,$folder,$allowed);
my $folderseq='/uploaded/'.$coursedom.'/'.$coursenum.'/default_'.time.
'.sequence';
$r->print(<