--- loncom/interface/londocs.pm	2002/07/24 20:40:58	1.2
+++ loncom/interface/londocs.pm	2002/08/27 12:18:13	1.11
@@ -1,39 +1,300 @@
 # The LearningOnline Network
 # Documents
 #
-# (Internal Server Error Handler
+# $Id: londocs.pm,v 1.11 2002/08/27 12:18:13 www Exp $
 #
-# (Login Screen
-# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
-# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
+# Copyright Michigan State University Board of Trustees
 #
-# 3/1/1 Gerd Kortemeyer)
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 #
-# 3/1 Gerd Kortemeyer
+# 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;
+
+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);
+}
 
+sub editor {
+    my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
+    my $errtext='';
+    my $fatal=0;
+    ($errtext,$fatal)=
+          &mapread($coursenum,$coursedom,$folder.'.sequence');
+    if ($fatal) {
+	   $r->print('<p><font color="red">'.$errtext.'</font></p>');
+    } else {
+# ------------------------------------------------------------ Process commands
+	if ($allowed) {
+# upload a file, if present
+           if (($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/\:/\&colon;/g;
+	      my $comment=$ENV{'form.comment'};
+              $comment=~s/\</\&lt\;/g;
+              $comment=~s/\>/\&gt\;/g;
+              $comment=~s/\:/\&colon;/g;
+              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/\:/\&colon;/g;
+                        $Apache::lonratedt::resources[$idx]=
+                           $name.':'.$url.':'.$ext.':normal:res';
+	             }
+                 }
+	      }
+# Store the changed version
+		&storemap($coursenum,$coursedom,$folder.'.sequence');
+            }
+	}
+# ---------------------------------------------------------------- Print screen
+        my $idx=0;
+        $r->print('<table>');
+        foreach (@Apache::lonratedt::order) {
+           my ($name,$url)=split(/\:/,$Apache::lonratedt::resources[$_]);
+           unless ($name) {  $name=(split(/\//,$url))[-1]; }
+           unless ($name) { $name='EMPTY'; }
+           $r->print(&entryline($idx,$name,$url,$folder,$allowed));
+           $idx++;
+        }
+        $r->print('</table>');
+    }
+}
+
+# --------------------------------------------------------------- An entry line
+
+sub entryline {
+    my ($index,$title,$url,$folder,$allowed)=@_;
+    my $line='<tr>';
+# Edit commands
+    if ($allowed) {
+       $line.=(<<END);
+<td><table border='0' cellspacing='0' cellpadding='0'>
+<tr><td><a href='/adm/coursedocs?folder=$folder&cmd=up_$index'>
+<img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
+<tr><td><a href='/adm/coursedocs?folder=$folder&cmd=down_$index'>
+<img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
+</table></td><td>
+<a href='/adm/coursedocs?folder=$folder&cmd=del_$index'>Remove</td>
+END
+    }
+# URL
+    if ($url=~/^\/*uploaded\//) {
+	$url=&Apache::lonnet::tokenwrapper($url);
+    }
+    $line.='<td><a href="'.$url.'">View</a></td>';
+# Title
+    $title=&Apache::lonnet::unescape($title);
+    if ($title=~
+ /^(\d+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(.*)$/
+	) { $title='<i>'.localtime($1).'</i> '.$2.' at '.$3.': <br>'.
+		&Apache::lontexconvert::msgtexconverted($4);
+	}
+    $line.="<td>$title</td>";
+    $line.='</tr>';
+    return $line;
+}
+
+# ================================================================ Main Handler
 sub handler {
     my $r = shift;
     $r->content_type('text/html');
     $r->send_http_header;
     return OK if $r->header_only;
 
-# --------------------------------------------------- Print login screen header
+# is this a standard course?
+
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['folder']);
+    my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
+    my $forcestandard=($ENV{'form.folder'}=~/^default_/);
+    my $forcesupplement=($ENV{'form.folder'}=~/^supplemental_/);
+
+# does this user have privileges to post, etc?
+    my $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
+    my $script='';
+    if ($allowed) { 
+       &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
+       $script=&Apache::lonratedt::editscript('simple'); 
+    }
+
+# get course data
+    my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
+    my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
+
+# graphics settings
+
+    $iconpath = $r->dir_config('lonIconsURL') . "/";
+
+# print screen
     $r->print(<<ENDDOCUMENT);
 <html>
 <head>
 <title>The LearningOnline Network with CAPA</title>
+<script>$script</script>
 </head>
-<body bgcolor="#FFFFFF">
-<h1>Printout</h1>
-<img src="/adm/lonKaputt/lonconstruct.gif">
-</body>
-</html>
 ENDDOCUMENT
+$r->print(&Apache::loncommon::bodytag('Course Documents'));
+# --------------------------------------------------0------ Standard documents
+    if (($standard) && ($allowed) && (!$forcesupplement)) {
+       $r->print('<h2>Main Course Documents</h2>');
+       my $folder=$ENV{'form.folder'};
+       unless ($folder=~/^default/) { $folder='default'; }
+       &editor($r,$coursenum,$coursedom,$folder,$allowed);
+       $r->print(<<ENDFORM);
+<table><tr>
+<th>Upload a new main course document</th>
+<th>Import a published document</th>
+<th>Special documents</th>
+</tr>
+<tr><td>
+File:<br />
+<form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
+<input type="file" name="uploaddoc" size="50">
+<br />
+Title:<br /> 
+<input type="text" size="50" name="comment">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="cmd" value="upload_default">
+<input type="submit" value="Upload Document">
+</form>
+</td>
+<td>
+<form action="/adm/coursedocs" method="post" name="simpleedit">
+<input type=hidden name="importdetail" value="">
+<input type=button onClick=
+"javascript:groupsearch()" value="Group Search">
+<input type=button onClick=
+"javascript:groupimport();" value="Group Import">
+</form>
+</td><td>
+<form action="/adm/coursedocs" method="post" name="newfolder">
+<input name="newfolder" type="button" onClick="javascript:newfolder();"
+value="New Folder" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newext">
+<input name="newext" type="button" onClick="javascript:newext();"
+value="External Resource" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newsyl">
+<input name="newsyl" type="button" onClick="javascript:newsyl();"
+value="Syllabus" />
+</form>
+</td></tr>
+</table>
+ENDFORM
+       $r->print('<hr />');
+    }
+# ----------------------------------------------------- Supplemental documents
+    if (!$forcestandard) {
+       $r->print('<h2>Supplemental Course Documents</h2>');
+       my $folder=$ENV{'form.folder'};
+       unless ($folder=~/supplemental/) { $folder='supplemental'; }
+       &editor($r,$coursenum,$coursedom,$folder,$allowed);
+       if ($allowed) {
+          $r->print(<<ENDSUPFORM);
+<h3>Post a new supplemental course document</h3>
+<form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
+<input type="file" name="uploaddoc" size="50">
+<br />Comment:<br />
+<textarea cols=50 rows=4 name='comment'>
+</textarea>
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="cmd" value="upload_supplemental">
+<input type="submit" value="Upload Document">
+</form>
+ENDSUPFORM
+       }
+    }
+
+    $r->print('</body></html>');
     return OK;
 }