--- loncom/interface/londocs.pm	2002/07/24 20:40:58	1.2
+++ loncom/interface/londocs.pm	2002/09/04 20:33:38	1.19
@@ -1,40 +1,472 @@
 # The LearningOnline Network
 # Documents
 #
-# (Internal Server Error Handler
+# $Id: londocs.pm,v 1.19 2002/09/04 20:33:38 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;
+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'}) {
+	$r->print('<h3>Folder: '.$ENV{'form.foldername'}.'</h3>');
+    }
+    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) {
+	   $r->print('<p><font color="red">'.$errtext.'</font></p>');
+    } 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/\:/\&colon;/g;
+	      my $comment=$ENV{'form.comment'};
+              $comment=~s/\</\&lt\;/g;
+              $comment=~s/\>/\&gt\;/g;
+              $comment=~s/\:/\&colon;/g;
+              if ($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/\:/\&colon;/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;
+        $r->print('<table>');
+        foreach (@Apache::lonratedt::order) {
+           my ($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_$index'>Remove</td>
+END
+    }
+# Figure out what kind of a resource this is
+    my ($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='<i>'.localtime($1).'</i> '.
+                &Apache::loncommon::plainname($2,$3).': <br>'.
+		$foldertitle;
+	}
+    if ($isfolder) { $url.='&foldername='.$foldertitle; }
+    $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'"><img src="/adm/lonIcons/'.
+        $icon.'.gif" border="0"></a></td>'.
+        "<td bgcolor='#FFFFBB'><a href='$url'>$title</a></td></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?
+
+    my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
+    my $forcestandard;
+    my $forcesupplement;
+    my $script='';
+    my $allowed;
+    my $events='';
+    my $showdoc=0;
+    &Apache::loncommon::get_unprocessed_cgi($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;
+       $showdoc=1;
+       $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
     $r->print(<<ENDDOCUMENT);
 <html>
 <head>
 <title>The LearningOnline Network with CAPA</title>
+<script>
+$script
 </head>
-<body bgcolor="#FFFFFF">
-<h1>Printout</h1>
-<img src="/adm/lonKaputt/lonconstruct.gif">
-</body>
-</html>
 ENDDOCUMENT
-    return OK;
+   if ($allowed) {
+    $r->print(<<ENDNEWSCRIPT);
+
+function makenewfolder(targetform,folderseq) {
+    var foldername=prompt('Name of New Folder','New Folder');
+    if (foldername) {
+	targetform.importdetail.value=foldername+"="+folderseq;
+        targetform.submit();
+    }
+}
+
+function makenewext(targetname) {
+    this.document.forms.extimport.useform.value=targetname;
+    window.open('/adm/rat/extpickframe.html');
+}
+
+function finishpick() {
+    var title=this.document.forms.extimport.title.value;
+    var url=this.document.forms.extimport.url.value;
+    var form=this.document.forms.extimport.useform.value;
+    eval
+     ('this.document.forms.'+form+'.importdetail.value="'+title+'='+url+
+    '";this.document.forms.'+form+'.submit();');
+}
+</script>
+ENDNEWSCRIPT
+  }
+# -------------------------------------------------------------------- Body tag
+  $r->print(&Apache::loncommon::bodytag('Course Documents','',$events));
+  unless ($showdoc) {
+# --------------------------------------------------------- Standard documents
+    if (($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);
+       my $folderseq='/uploaded/'.$coursedom.'/'.$coursenum.'/default_'.time.
+                     '.sequence';
+       $r->print(<<ENDFORM);
+<table cellspacing=2><tr>
+<th bgcolor="#DDDDDD">Upload a new main course document</th>
+<th bgcolor="#DDDDDD">Import a published document</th>
+<th bgcolor="#DDDDDD">Special documents</th>
+</tr>
+<tr><td bgcolor="#DDDDDD">
+File:<br />
+<form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
+<input type="file" name="uploaddoc" size="50">
+<br />
+Title:<br /> 
+<input type="text" size="50" name="comment">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type="hidden" name="cmd" value="upload_default">
+<input type="submit" value="Upload Document">
+</form>
+</td>
+<td bgcolor="#DDDDDD">
+<form action="/adm/coursedocs" method="post" name="simpleedit">
+<input type="hidden" name="folder" value="$folder">
+<input type=hidden name="importdetail" value="">
+<input type=button onClick=
+"javascript:groupsearch()" value="Search">
+<input type=button onClick=
+"javascript:groupimport();" value="Import">
+</form>
+</td><td bgcolor="#DDDDDD">
+<form action="/adm/coursedocs" method="post" name="newfolder">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" value="">
+<input name="newfolder" type="button"
+onClick="javascript:makenewfolder(this.form,'$folderseq');"
+value="New Folder" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newext">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" value="">
+<input name="newext" type="button" onClick="javascript:makenewext('newext');"
+value="External Resource" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newsyl">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" 
+value="Syllabus=/public/$coursedom/$coursenum/syllabus">
+<input name="newsyl" type="submit" value="Syllabus" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newnav">
+<input type=hidden name="importdetail" 
+value="Navigate Content=/adm/navmaps">
+<input name="newsyl" type="submit" value="Navigate Content" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newaboutme">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" 
+value="$plainname=/adm/$udom/$uname/aboutme">
+<input name="newaboutme" type="submit" value="My Personal Info" />
+</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) {
+       my $folderseq=
+                  '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_'.time.
+                     '.sequence';
+
+          $r->print(<<ENDSUPFORM);
+<table cellspacing=2><tr>
+<th bgcolor="#DDDDDD">Upload a new supplemental course document</th>
+<th bgcolor="#DDDDDD">Import a published document</th>
+<th bgcolor="#DDDDDD">Special documents</th>
+</tr>
+<tr><td bgcolor="#DDDDDD">
+<form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
+<input type="file" name="uploaddoc" size="50">
+<br />Comment:<br />
+<textarea cols=50 rows=4 name='comment'>
+</textarea>
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type="hidden" name="cmd" value="upload_supplemental">
+<input type="submit" value="Upload Document">
+</form>
+</td>
+<td bgcolor="#DDDDDD">
+<form action="/adm/coursedocs" method="post" name="simpleedit">
+<input type="hidden" name="folder" value="$folder">
+<input type=hidden name="importdetail" value="">
+<input type=button onClick=
+"javascript:groupsearch()" value="Search">
+<input type=button onClick=
+"javascript:groupimport();" value="Import">
+</form>
+</td><td bgcolor="#DDDDDD">
+<form action="/adm/coursedocs" method="post" name="supnewfolder">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" value="">
+<input name="newfolder" type="button"
+onClick="javascript:makenewfolder(this.form,'$folderseq');"
+value="New Folder" />
+</form>
+<form action="/adm/coursedocs" method="post" name="supnewext">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" value="">
+<input name="newext" type="button" 
+onClick="javascript:makenewext('supnewext');"
+value="External Resource" />
+</form>
+<form action="/adm/coursedocs" method="post" name="supnewsyl">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" 
+value="Syllabus=/public/$coursedom/$coursenum/syllabus">
+<input name="newsyl" type="submit" value="Syllabus" />
+</form>
+<form action="/adm/coursedocs" method="post" name="subnewaboutme">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" 
+value="$plainname=/adm/$udom/$uname/aboutme">
+<input name="newaboutme" type="submit" value="My Personal Info" />
+</form>
+</td></tr>
+</table>
+ENDSUPFORM
+       }
+    }
+    if ($allowed) {
+	$r->print('<form name="extimport"><input type="hidden" name="title"><input type="hidden" name="url"><input type="hidden" name="useform"></form>');
+    }
+  } else {
+# -------------------------------------------------------- This is showdoc mode
+      $r->print("<h1>Uploaded Document</h1><p>It is recommended that you use an up-to-date virus scanner before handling this file.</p><p><table>".
+         &entryline(0,"Click to download or use your browser's Save Link function",$ENV{'form.showdoc'}).'</table></p>');
+  }
+  $r->print('</body></html>');
+  return OK;
 } 
 
 1;