--- loncom/interface/portfolio.pm	2004/06/18 20:42:16	1.2
+++ loncom/interface/portfolio.pm	2006/03/15 19:41:26	1.95
@@ -1,3 +1,26 @@
+# 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::portfolio;
 use strict;
 use Apache::Constants qw(:common :http);
@@ -6,38 +29,729 @@ use Apache::lonnet;
 use Apache::lontexconvert;
 use Apache::lonfeedback;
 use Apache::lonlocal;
+use Apache::lonnet;
 
-sub handler {
-	my $r=@_[0];
-	$r->content_type('text/html');
-	$r->send_http_header;
-	return OK if $r->header_only;
-	my $file=&Apache::lonnet::filelocation("",$r->uri);	
-	my $contents=&Apache::lonnet::getfile($file);
-	$r->print ('<br />Current contents of your portfolio directory: <br />');
-	$r->print (&Apache::lonnet::portfoliolist($r->uri, $ENV{'user.domain'}, $ENV{'user.name'}, udef ));
-	$r->print ('<br /> call to dirlist precedes <br />');
-	if ($ENV{'form.uploaddoc.filename'}){
-		$r->print ('<br /> call to userfileupload follows <br />');
-		$r->print (&Apache::lonnet::userfileupload('uploaddoc',undef,'portfolio').'<br />');	
-		$r->print ('<br /> call to userfileupload precedes <br />');
+# receives a file name and path stub from username/userfiles/portfolio/
+# returns an anchor tag consisting encoding filename and currentpath
+sub make_anchor {
+    my ($url, $filename, $current_path, $current_mode, $field_name,
+        $continue_select,$group) = @_;
+    if ($continue_select ne 'true') {$continue_select = 'false'};
+    my $anchor = '<a href="'.$url.'?selectfile='.$filename.'&currentpath='.$current_path.'&mode='.$current_mode.'&continue='.$continue_select.'&fieldname='.$field_name;
+    if (defined($group)) {
+        $anchor .= '&group='.$group;
+    }
+    $anchor .= '">'.$filename.'</a>';
+    return $anchor;
+}
+my $dirptr=16384;
+sub display_common {
+    my ($r,$url,$current_path,$is_empty,$dir_list,$group)=@_;
+    my $groupitem;
+    my $namespace = &get_namespace($group);
+    my $port_path = &get_port_path($group);
+    if (defined($group)) {
+        $groupitem = '<input type="hidden" name="group" value="'.$group.'" />';
+    } 
+    my $iconpath= $r->dir_config('lonIconsURL') . "/";
+    my %text=&Apache::lonlocal::texthash('upload' => 'Upload',
+					 'upload_label' =>  
+					 'Upload file to current directory:',
+					 'createdir' => 'Create Subdirectory',
+					 'createdir_label' => 
+					 'Create subdirectory in current directory:');
+    $r->print(<<"TABLE"); 
+<table border="0" cellspacing="2" cellpadding="2">
+  <form method="post" enctype="multipart/form-data">
+    <tr valign="middle">
+      <td bgcolor="#ccddaa" align="right">
+        $text{'upload_label'}
+      </td>
+      <td bgcolor="#ccddaa" align="left">$groupitem
+        <input name="uploaddoc" type="file" />
+	<input type="hidden" name="currentpath" value="$current_path" />
+	<input type="hidden" name="action" value="$env{"form.action"}" />
+	<input type="hidden" name="fieldname" value="$env{"form.fieldname"}" />
+	<input type="hidden" name="mode" value="$env{"form.mode"}" />
+	<input type="submit" name="storeupl" value="$text{'upload'}" />
+      </td>
+    </tr>
+  </form>
+  <form method="post">
+    <tr>
+      <td bgcolor="#ccddaa" align="right">
+        $text{'createdir_label'}
+      </td>
+      <td bgcolor="#ccddaa" align="left">
+        <input name="newdir" type="input" />$groupitem
+        <input type="hidden" name="currentpath" value="$current_path" />
+        <input type="hidden" name="action" value="$env{"form.action"}" />
+        <input type="hidden" name="fieldname" value="$env{"form.fieldname"}" />
+        <input type="hidden" name="mode" value="$env{"form.mode"}" />
+        <input type="submit" name="createdir" value="$text{'createdir'}" />
+      </td>
+    </tr>
+  </form>
+</table>
+TABLE
+    my @tree = split (/\//,$current_path);
+    $r->print('<font size="+2">'.&make_anchor($url,$port_path,'/',$env{"form.mode"},$env{"form.fieldname"},$env{"form.continue"},$group).'/');
+    if (@tree > 1){
+        my $newCurrentPath = '';
+        for (my $i = 1; $i< @tree; $i++){
+            $newCurrentPath .= $tree[$i].'/';
+            $r->print(&make_anchor($url,$tree[$i],'/'.$newCurrentPath, $env{"form.mode"},$env{"form.fieldname"}, $env{"form.continue"},$group).'/');
+        }
+    }
+    $r->print('</font>');
+    &Apache::lonhtmlcommon::store_recent($namespace,$current_path,$current_path);
+    $r->print('<br /><form method=post action="'.$url.'?mode='.$env{"form.mode"}.'&fieldname='.$env{"form.fieldname"});
+    if (defined($group)) {
+        $r->print('&group='.$group);
+    }
+    $r->print('">'.
+	      &Apache::lonhtmlcommon::select_recent($namespace,'currentpath',
+						    'this.form.submit();'));
+    $r->print("</form>");
+}
+sub display_directory {
+    my ($r,$url,$current_path,$is_empty,$dir_list,$group)=@_;
+    my $iconpath= $r->dir_config('lonIconsURL') . "/";
+    my ($groupitem,$groupecho);
+    my $display_out;
+    my $select_mode;
+    my $checked_files;
+    my $port_path = &get_port_path($group);
+    my ($uname,$udom) = &get_name_dom($group);
+    my $namespace = &get_namespace($group); 
+    if (defined($group)) {
+       $groupitem = '<input type="hidden" name="group" value="'.$group.'" />'; 
+       $groupecho = '&amp;group='.$group;
+    }
+    my %locked_files = &Apache::lonnet::get_marked_as_readonly_hash ($namespace,$udom,$uname);
+    if ($env{"form.mode"} eq 'selectfile'){
+	&select_files($r);
+	$checked_files =&Apache::lonnet::files_in_path($uname,$env{'form.currentpath'});
+	$select_mode = 'true';
+    } 
+    if ($is_empty && ($current_path ne '/')) {
+        $display_out = '<form method="post" action="'.$url.'">'.$groupitem.
+        '<input type="hidden" name="action" value="deletedir" />'.
+        '<input type="submit" name="deletedir" value="'.&mt("Delete Directory").'" />'.
+        '<input type="hidden" name="selectfile" value="" />'.
+        '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
+        '</form>';
+        
+        $r->print($display_out);
+	return;
+    }
+    if ($select_mode eq 'true') {
+        $r->print('<table border="0" cellspacing="2" cellpadding="2">'.
+            '<tr><th>Select</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
+        $r->print('<form method="post" name="checkselect" action="'.$url.'">');
+    } else {
+        $r->print('<table border="0" cellspacing="2" cellpadding="2">'.
+            '<tr><th colspan="2">Actions</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
+        $r->print('<form method="post" action="'.$url.'">');
+    }
+    if (defined($group)) {
+        $r->print("\n".$groupitem."\n");
+    }
+    my $href_location="/uploaded/$udom/$uname/$port_path".$current_path;
+    my $href_edit_location="/editupload/$udom/$uname/$port_path".$current_path;
+    foreach my $line (sort 
+		      { 
+			  my ($afile)=split('&',$a,2);
+			  my ($bfile)=split('&',$b,2);
+			  return (lc($afile) cmp lc($bfile));
+		      } (@$dir_list)) {
+    	#$strip holds directory/file name
+    	#$dom 
+    	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
+    	$filename =~ s/\s+$//;
+    	if (($filename ne '.') && ($filename ne '..') && ($filename !~ /\.meta$/ ) && ($filename !~ /(.*)\.(\d+)\.([^\.]*)$/)) {
+            if ($dirptr&$testdir) {
+                if ($select_mode eq 'true'){
+                    $r->print('<tr bgcolor="#FFAA99"><td><img src="'.$iconpath.'folder_closed.gif"></td>');
+                } else {
+                    $r->print('<tr bgcolor="#FFAA99"><td colspan="2"><img src="'.$iconpath.'folder_closed.gif"></td>');
+                }
+                $r->print('<td>Go to ...</td>');
+                $r->print('<td>'.&make_anchor($url,$filename.'/',$current_path.$filename.'/',$env{'form.mode'},$env{"form.fieldname"},$env{'form.continue'},$group).'</td>'); 
+                $r->print('</tr>'); 
+            } else {
+                $r->print('<tr bgcolor="#CCCCFF">');
+                if ($select_mode eq 'true'){
+                    $r->print('<td><input type="checkbox" name="checkfile" value="'.$filename.'"'); 
+                    if ($$checked_files{$filename} eq 'selected') {
+                        $r->print("CHECKED");
+                    }
+                    $r->print('></td>');
+                } else {
+                    if (exists $locked_files{$current_path.$filename}){
+                        $r->print('<td colspan="2"><a href="'.$url.'?lockinfo='.$current_path.$filename.$groupecho.'">Locked</a></td>');
+                    } else {
+			my $cat='<img alt="'.&mt('Catalog Information').
+			    '" src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').'" />';
+                        $r->print('<td><input type="checkbox" name="selectfile" value="'.$filename.'" />
+                            <a href="'.$url.'?rename='.$filename.'&amp;currentpath='.$current_path.$groupecho.'">Rename</a></td>
+                            <td><a href="'.$href_edit_location.$filename.'.meta">'.$cat.'</a>
+                            </td>');
+                    }
+                }
+                $r->print('<td><img src="'.&Apache::loncommon::icon($filename).'"></td>');
+                $r->print('<td><a href="'.$href_location.$filename.'">'.
+			    $filename.'</a></td>'); 
+                $r->print('<td>'.$size.'</td>');
+                $r->print('<td>'.&Apache::lonlocal::locallocaltime($mtime).'</td>');
+                $r->print('</tr>'); 
+            }
+        }
+    }
+    if ($select_mode eq 'true') {
+        $r->print('</table>
+            <input type="hidden" name="continue" value="true">
+            <input type="hidden" name="fieldname" value="'.$env{'form.fieldname'}.'">
+            <input type="hidden" name="mode" value="selectfile">
+            <input type="submit" name="submit" value="Select checked files, and continue selecting." /><br />
+            <input type="button" name="doit" onClick= "finishSelect();" value="Select checked files, and close window" />
+            <input type="hidden" name="currentpath" value="'.$current_path.'" />
+        </form>');        
+    } else {
+        $r->print('</table>
+        <input type="submit" name="doit" value="Delete Checked Files" />
+        <input type="hidden" name="action" value="delete" />
+        <input type="hidden" name="currentpath" value="'.$current_path.'" />
+        </form>');
+    }
+}
+
+sub open_form {
+    my ($r,$url)=@_;
+    my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
+    $r->print('<form method="post" action="'.$url.'">');
+    $r->print('<input type="hidden" name="action" value="'.
+	      $env{'form.action'}.'" />');
+    $r->print('<input type="hidden" name="confirmed" value="1" />');
+    foreach (@files) {
+        $r->print('<input type="hidden" name="selectfile" value="'.
+	      $_.'" />');
+    }
+    $r->print('<input type="hidden" name="currentpath" value="'.
+	      $env{'form.currentpath'}.'" />');
+}
+
+sub close_form {
+    my ($r,$url,$group)=@_;
+    $r->print('<p><input type="submit" value="'.&mt('Continue').'" />');
+    if (defined($group)) {
+       $r->print("\n".'<input type="hidden" name="group" value="'.
+              $group.'" />');
+    }
+    $r->print('</p></form>');
+    $r->print('<form action="'.$url.'" method="POST">
+               <p>
+              <input type="hidden" name="currentpath" value="'.
+	      $env{'form.currentpath'}.'" />');
+    if (defined($group)) {
+       $r->print("\n".'<input type="hidden" name="group" value="'.
+              $group.'" />');
+    }
+    $r->print("\n".'   <input type="submit" value="'.&mt('Cancel').'" />
+               </p></form>'); 
+}
+
+sub display_file {
+    my ($path,$filename)=@_;
+    my $display_file_text;
+    if (!defined($path)) { $path=$env{'form.currentpath'}; }
+    if (!defined($filename)) { 
+        $filename=$env{'form.selectfile'};
+        $display_file_text = '<tt>'.$path.$filename.'</tt>';
+    } elsif (ref($filename) eq "ARRAY") {
+        foreach (@$filename) {
+            $display_file_text .= '<tt>'.$path.$_.'</tt><br />';
+        }
+    } elsif (ref($filename) eq "SCALAR") {
+        $display_file_text = '<tt>'.$path.$filename.'</tt>';        
+    }
+    return $display_file_text;
+}
+
+sub done {
+    my ($message,$url,$group)=@_;
+    unless (defined $message) {
+        $message='Done';
+    }
+    my $result = '<h3><a href="'.$url.'?currentpath='.
+	         $env{'form.currentpath'}.
+	         '&fieldname='.$env{'form.fieldname'}.
+	         '&mode='.$env{'form.mode'};
+    if (defined($group)) {
+        $result .= '&group='.$group;
+    }
+    $result .= '">'.&mt($message).'</a></h3>';
+    return $result;
+}
+
+sub delete {
+    my ($r,$url,$group)=@_;
+    my @check;
+    my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
+    my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
+    my ($uname,$udom) = &get_name_dom($group);
+    if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
+        $r->print ("The file is locked and cannot be deleted.<br />");
+        $r->print(&done('Back',$url,$group));
+    } else {
+        if (scalar(@files)) {
+            &open_form($r,$url);
+            $r->print('<p>'.&mt('Delete').' '.&display_file(undef,\@files).'?</p>');
+            &close_form($r,$url,$group);
+        } else {
+            $r->print("No file was checked to delete.<br />");
+            $r->print(&done(undef,$url,$group));
+        }
+    }
+} 
+
+sub delete_confirmed {
+    my ($r,$url,$group)=@_;
+    my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
+    my $result;
+    my ($uname,$udom) = &get_name_dom($group);
+    my $port_path = &get_port_path($group);
+    foreach my $delete_file (@files) {
+        $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
+					       $env{'form.currentpath'}.
+					       $delete_file);
+        if ($result ne 'ok') {
+	$r->print('<font color="red"> An error occured ('.$result.
+		  ') while trying to delete '.&display_file(undef, $delete_file).'</font><br />');
+        }
+    }
+    $r->print(&done(undef,$url,$group));
+}
+
+sub delete_dir {
+    my ($r,$url,$group)=@_;
+    &open_form($r,$url);
+    $r->print('<p>'.&mt('Delete').' '.&display_file().'?</p>');
+    &close_form($r,$url,$group);
+} 
+
+sub delete_dir_confirmed {
+    my ($r,$url,$group)=@_;
+    my $directory_name = $env{'form.currentpath'};
+    $directory_name =~ s|/$||; # remove any trailing slash
+    my ($uname,$udom) = &get_name_dom($group);
+    my $namespace = &get_namespace($group);
+    my $port_path = &get_port_path($group);
+    my $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
+					       $directory_name);
+					       
+    if ($result ne 'ok') {
+	$r->print('<font color="red"> An error occured (dir) ('.$result.
+		  ') while trying to delete '.$directory_name.'</font><br />');
+    } else {
+        # now remove from recent
+#        $r->print('<br /> removing '.$directory_name.'<br /');
+        &Apache::lonhtmlcommon::remove_recent($namespace,[$directory_name.'/']);
+        my @dirs = split m!/!, $directory_name;
+        
+#        $directory_name =~ m/^(\/*\/)(\/*.)$/;
+        $directory_name='/';
+        for (my $i=1; $i < (@dirs - 1); $i ++){
+            $directory_name .= $dirs[$i].'/';
+        }
+        $env{'form.currentpath'} = $directory_name;
+    }
+    $r->print(&done(undef,$url,$group));
+}
+
+sub rename {
+    my ($r,$url,$group)=@_;
+    my $file_name = $env{'form.currentpath'}.$env{'form.rename'};
+    my ($uname,$udom) = &get_name_dom($group);
+    if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
+        $r->print ("The file is locked and cannot be renamed.<br />");
+        $r->print(&done(undef,$url,$group));
+    } else {
+        &open_form($r,$url);
+        $r->print('<p>'.&mt('Rename').' '.&display_file().' to 
+                   <input name="filenewname" type="input" size="50" />?</p>');
+        &close_form($r,$url,$group);
+    }
+}
+
+sub rename_confirmed {
+    my ($r,$url,$group)=@_;
+    my $filenewname=&Apache::lonnet::clean_filename($env{'form.filenewname'});
+    my ($uname,$udom) = &get_name_dom($group);
+    my $port_path = &get_port_path($group);
+    if ($filenewname eq '') {
+	$r->print('<font color="red">'.
+		  &mt("Error: no valid filename was provided to rename to.").
+		  '</font><br />');
+	$r->print(&done(undef,$url,$group));
+	return;
+    } 
+    my $result=
+	&Apache::lonnet::renameuserfile($uname,$udom,
+            $port_path.$env{'form.currentpath'}.$env{'form.selectfile'},
+            $port_path.$env{'form.currentpath'}.$filenewname);
+    if ($result ne 'ok') {
+	$r->print('<font color="red"> An errror occured ('.$result.
+		  ') while trying to rename '.&display_file().' to '.
+		  &display_file(undef,$filenewname).'</font><br />');
+    }
+    if ($filenewname ne $env{'form.filenewname'}) {
+        $r->print("The new file name was changed from:<br /><strong>".$env{'form.filenewname'}."</strong> to <strong>$filenewname </strong>");
+    }
+    $r->print(&done(undef,$url,$group));
+}
+sub select_files {
+    my ($r,$group)=@_;
+    if ($env{'form.continue'} eq 'true') {
+        # here we update the selections for the currentpath
+        # eventually, have to handle removing those not checked, but . . . 
+        my @items=&Apache::loncommon::get_env_multiple('form.checkfile');
+        if (scalar(@items)){
+             &Apache::lonnet::save_selected_files($env{'user.name'}, $env{'form.currentpath'}, @items);
+        }
+    } else {
+            #empty the file for a fresh start
+            &Apache::lonnet::clear_selected_files($env{'user.name'});
+    }
+    my @files = &Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
+    my $java_files = join ",", @files;
+    if ($java_files) {
+        $java_files.=',';
+    }
+    my $javascript =(<<ENDSMP);
+        <script language='javascript'>
+        function finishSelect() {
+ENDSMP
+    $javascript .= 'fileList = "'.$java_files.'";';
+    $javascript .= (<<ENDSMP);
+            for (i=0;i<document.forms.checkselect.length;i++) { 
+                if (document.forms.checkselect[i].checked){
+                    fileList = fileList + document.forms.checkselect.currentpath.value + document.forms.checkselect[i].value + "," ;
+                }
+            }
+            opener.document.forms.lonhomework.
+ENDSMP
+    $javascript .= $env{'form.fieldname'};
+    $javascript .= (<<ENDSMP);
+        .value=fileList;
+            self.close();
+        }
+        </script>
+ENDSMP
+    $r->print($javascript);
+    $r->print("<h1>Select portfolio files</h1>
+                Check as many as you wish in response to the problem.<br />");
+    my @otherfiles=&Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
+    if (@otherfiles) {
+	$r->print("<strong>Files selected from other directories:</strong><br />");
+	foreach my $file (@otherfiles) {
+	    $r->print($file."<br />");
 	}
+    }
+}
+sub upload {
+    my ($r,$url,$group)=@_;
+    my $fname=$env{'form.uploaddoc.filename'};
+    my $filesize = (length($env{'form.uploaddoc'})) / 1000; #express in k (1024?)
+    my $disk_quota = 20000; # expressed in k
+    $fname=&Apache::lonnet::clean_filename($fname);
 
-	$r->print ($ENV{'form.uploaddoc.filename'}.'<br />');
-	$r->print ($ENV{'form.storeupl'}.'<br />');
-	$r->print ($ENV{'form.saywhat'}.'<br />');
-
-	$r->print("here's the form<br />");
-	# file upload form 
-	$r->print('<form method="post" enctype="multipart/form-data">');
-	$r->print('<input name="uploaddoc" type="file">'.
-	
-		'<input type="submit" name="storeupl" value="Upload">'
-		);
-	$r->print('</form>');
-	return OK;
+    my $portfolio_root=&get_portfolio_root($group);
+    my ($uname,$udom) = &get_name_dom($group);
+    my $port_path = &get_port_path($group);
+    # Fixme --- Move the checking for existing file to LOND error return
+    my @dir_list=&get_dir_list($portfolio_root,$group);
+    my $found_file = 0;
+    my $locked_file = 0;
+    foreach my $line (@dir_list) {
+        my ($file_name)=split(/\&/,$line,2);
+        if ($file_name eq $fname){
+            $found_file = 1;
+            if (&Apache::lonnet::is_locked($env{'form.currentpath'}.$file_name,$udom,$uname) eq 'true') {
+                $locked_file = 1;
+            } 
+        }
+    }
+    my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,$portfolio_root);
+    if (($current_disk_usage + $filesize) > $disk_quota){
+        $r->print('<font color="red">Unable to upload <strong>'.$fname.' (size = '.$filesize.' kilobytes)</strong>. Disk quota will be exceeded.'.
+                  '<br />Disk quota is '.$disk_quota.' kilobytes. Your current disk usage is '.$current_disk_usage.' kilobytes.');
+        $r->print(&done('Back',$url,$group));
+    } 
+    elsif ($found_file){
+        if ($locked_file){
+            $r->print('<font color="red">Unable to upload <strong>'.$fname.'</strong>, a <strong>locked</strong> file by that name was found in <strong>'.$port_path.$env{'form.currentpath'}.'</strong></font>'.
+                  '<br />You will be able to rename or delete existing '.$fname.' after a grade has been assigned.');
+            $r->print(&done('Back',$url,$group));      
+        } else {   
+            $r->print('<font color="red">Unable to upload <strong>'.$fname.'</strong>, a file by that name was found in <strong>'.$port_path.$env{'form.currentpath'}.'</strong></font>'.
+                  '<br />To upload, rename or delete existing '.$fname.' in '.$port_path.$env{'form.currentpath'});
+            $r->print(&done('Back',$url,$group));
+        }
+    } else {
+        my $result=&Apache::lonnet::userfileupload('uploaddoc','',
+	        	 $port_path.$env{'form.currentpath'});
+        print STDERR "result was $result for $port_path.$env{'form.currentpath'}\n";
+        if ($result !~ m|^/uploaded/|) {
+            $r->print('<font color="red"> An errror occured ('.$result.
+	              ') while trying to upload '.&display_file().'</font><br />');
+	    $r->print(&done('Back',$url,$group));
+        } else {
+            $r->print(&done(undef,$url,$group));
+        }
+    }
+}
+sub lock_info {
+    my ($r,$url,$group) = @_;
+    my ($uname,$udom) = &get_name_dom($group);
+    my %current_permissions = &Apache::lonnet::dump('file_permissions',$udom,$uname);
+    my $file_name = $env{'form.lockinfo'};
+    foreach my $key(keys(%current_permissions)) {
+        if ($file_name eq $key) {
+            foreach my $array_item (@{$current_permissions{$key}}) {
+                if (ref($array_item)) {
+                    $r->print('<strong>'.$key.'</strong> was submitted in response to problem: <strong>'.
+                            &Apache::lonnet::gettitle($$array_item[0]).'</strong><br />');
+                    my %course_description = &Apache::lonnet::coursedescription($$array_item[1]);
+                    $r->print('In the course: <strong>'.$course_description{'description'}.'</strong><br />');
+                    # $r->print('the third is '.$$array_item[2].'<br>');
+                    # $r->print("item is $$array_item[0]<br> and $$array_item[0]");
+                }
+            }
+        }    
+    }
+    $r->print(&done('Back',$url,$group));
+    return 'ok';
+}
+sub createdir {
+    my ($r,$url,$group)=@_;
+    my $newdir=&Apache::lonnet::clean_filename($env{'form.newdir'});
+    if ($newdir eq '') {
+    	$r->print('<font color="red">'.
+	    	  &mt("Error: no directory name was provided.").
+		      '</font><br />');
+	    $r->print(&done(undef,$url,$group));
+	    return;
+    }
+    my $portfolio_root = &get_portfolio_root($group); 
+    my @dir_list=&get_dir_list($portfolio_root,$group);
+    my $found_file = 0;
+    foreach my $line (@dir_list) {
+        my ($filename)=split(/\&/,$line,2);
+        if ($filename eq $newdir){
+            $found_file = 1;
+        }
+    }
+    if ($found_file){
+    	    $r->print('<font color="red"> Unable to create a directory named <strong>'.$newdir.
+    	            ' </strong>a file or directory by that name already exists.</font><br />');
+    } else {
+        my ($uname,$udom) = &get_name_dom($group);
+        my $port_path = &get_port_path($group);
+        my $result=&Apache::lonnet::mkdiruserfile($uname,$udom,
+	         $port_path.$env{'form.currentpath'}.$newdir);
+        if ($result ne 'ok') {
+    	    $r->print('<font color="red"> An errror occured ('.$result.
+	    	      ') while trying to create a new directory '.&display_file().'</font><br />');
+        }
+    }
+    if ($newdir ne $env{'form.newdir'}) {
+        $r->print("The new directory name was changed from:<br /><strong>".$env{'form.newdir'}."</strong> to <strong>$newdir </strong>");  
+    }
+    $r->print(&done(undef,$url,$group));
+}
+
+sub get_portfolio_root {
+    my ($group) = @_;
+    my ($portfolio_root,$udom,$uname,$path);
+    ($uname,$udom) = &get_name_dom($group);
+    if (defined($group)) {
+        $path = '/userfiles/groups/'.$group.'/portfolio';
+    } else {
+        $path = '/userfiles/portfolio';
+    }
+    return (&Apache::loncommon::propath($udom,$uname).$path);
+}
+
+sub get_dir_list {
+    my ($portfolio_root,$group) = @_;
+    my ($uname,$udom) = &get_name_dom($group);
+    return &Apache::lonnet::dirlist($env{'form.currentpath'},
+                                          $udom,$uname,$portfolio_root);
+}
 
+sub get_name_dom {
+    my ($group) = @_;
+    my ($uname,$udom);
+    if (defined($group)) {
+        $udom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+        $uname = $env{'course.'.$env{'request.course.id'}.'.num'};
+    } else {
+        $udom = $env{'user.domain'};
+        $uname = $env{'user.name'};
+    }
+    return ($uname,$udom);
 }
 
+sub get_namespace {
+    my ($group) = @_;
+    my $namespace = 'portfolio';
+    if (defined($group)) {
+        my ($uname,$udom) = &get_name_dom($group);
+        $namespace .= '_'.$udom.'_'.$uname.'_'.$group;
+    }
+    return $namespace;
+}
+
+sub get_port_path {
+    my ($group) = @_;
+    my $port_path;
+    if (defined($group)) {
+       $port_path = "groups/$group/portfolio";
+    } else {
+       $port_path = 'portfolio';
+    }
+    return $port_path;
+}
+
+sub handler {
+    # this handles file management
+    my $r = shift;
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+         ['selectfile','currentpath','meta','lockinfo','currentfile',
+	    'action','fieldname','mode','rename','continue','group']);
+    my ($uname,$udom,$portfolio_root,$url,$group,$caller,$title);
+    if ($r->uri =~ m|^(/adm/)([^/]+)|) {
+        $url = $1.$2;
+        $caller = $2;
+    }
+    if ($caller eq 'coursegrp_portfolio') {
+    #  Needs to be in a course
+        if (! ($env{'request.course.fn'})) {
+        # Not in a course
+            $env{'user.error.msg'}=
+     "/adm/coursegrp_portfolio:rgf:0:0:Cannot view group portfolio";
+            return HTTP_NOT_ACCEPTABLE;
+        }
+        my $earlyout = 0;
+        my $view_permission = &Apache::lonnet::allowed('vcg',
+                                                $env{'request.course.id'});
+        $group = $env{'form.group'};
+        $group =~ s/\W//g;
+        if ($group) {
+            my %curr_groups = ();
+            ($uname,$udom) = &get_name_dom($group);
+            if (&Apache::loncommon::coursegroups(\%curr_groups,$udom,$uname,
+                                                       $group)) {
+                if (($view_permission) || (&Apache::lonnet::allowed('rgf',
+                                      $env{'request.course.id'}.'/'.$group))) {
+                    $portfolio_root = &get_portfolio_root($group);
+                } else {
+                    $r->print('You do not have the privileges required to access the shared files space for this group');
+                    $earlyout = 1;
+                }
+            } else {
+                $r->print('Not a valid group for this course');
+                $earlyout = 1;
+            }
+            $title = &mt('Group files').' for '.$group; 
+        } else {
+            $r->print('Invalid group');
+            $earlyout = 1;
+        }
+        if ($earlyout) { return OK; }
+    } else {
+        ($uname,$udom) = &get_name_dom();
+        $portfolio_root = &get_portfolio_root();
+        $title = &mt('Portfolio Manager');
+    }
+
+    &Apache::loncommon::no_cache($r);
+    &Apache::loncommon::content_type($r,'text/html');
+    $r->send_http_header;
+    # Give the LON-CAPA page header
+    my $html=&Apache::lonxml::xmlbegin();
+    $r->print($html.&Apache::loncommon::head($title)."\n");
+    if ($env{"form.mode"} eq 'selectfile'){
+        $r->print(&Apache::loncommon::bodytag($title,undef,undef,1));
+    } else {
+        $r->print(&Apache::loncommon::bodytag($title));
+    }
+    $r->rflush();
+	if (($env{'form.storeupl'}) & (!$env{'form.uploaddoc.filename'})){
+   	    $r->print('<font color="red"> No file was selected to upload.'.
+   	            'To upload a file, click <strong>Browse...</strong>'.
+   	            ', select a file, then click <strong>Upload</strong>,</font>');
+	}
+    if ($env{'form.meta'}) {
+        &open_form($r,$url);
+#        $r->print(&edit_meta_data($r, $env{'form.currentpath'}.$env{'form.selectfile'}));
+        $r->print('Edit the meta data<br />');
+        &close_form($r,$url,$group);
+    }
+    if ($env{'form.store'}) {
+    }
+
+    if ($env{'form.uploaddoc.filename'}) {
+	&upload($r,$url,$group);
+    } elsif ($env{'form.action'} eq 'delete' && $env{'form.confirmed'}) {
+	&delete_confirmed($r,$url,$group);
+    } elsif ($env{'form.action'} eq 'delete') {
+	&delete($r,$url,$group);
+    } elsif ($env{'form.action'} eq 'deletedir' && $env{'form.confirmed'}) {
+	&delete_dir_confirmed($r,$url,$group);
+    } elsif ($env{'form.action'} eq 'deletedir'){
+	&delete_dir($r,$url,$group);
+    } elsif ($env{'form.action'} eq 'rename' && $env{'form.confirmed'}) {
+	&rename_confirmed($r,$url,$group);
+    } elsif ($env{'form.rename'}) {
+        $env{'form.selectfile'} = $env{'form.rename'};
+        $env{'form.action'} = 'rename';
+	&rename($r,$url,$group);
+    } elsif ($env{'form.createdir'}) {
+	&createdir($r,$url,$group);
+    } elsif ($env{'form.lockinfo'}) {
+        &lock_info($r,$url,$group);
+    } else {
+	my $current_path='/';
+	if ($env{'form.currentpath'}) {
+	    $current_path = $env{'form.currentpath'};
+	}
+        my @dir_list=&get_dir_list($portfolio_root,$group);
+	if ($dir_list[0] eq 'no_such_dir'){
+	    # two main reasons for this:
+            #    1) never been here, so directory structure not created
+	    #    2) back-button navigation after deleting a directory
+	    if ($current_path eq '/'){
+	        &Apache::lonnet::mkdiruserfile($uname,$udom,'portfolio');
+	    } else {
+                # some directory that snuck in get rid of the directory
+                # from the recent pulldown, just in case
+		&Apache::lonhtmlcommon::remove_recent('portfolio',
+						      [$current_path]);
+		$current_path = '/'; # force it back to the root        
+	    }
+	    # now grab the directory list again, for the first time
+	    @dir_list=&Apache::lonnet::dirlist($current_path,
+					    $udom,$uname,$portfolio_root);
+        }
+	# need to know if directory is empty so it can be removed if desired
+	my $is_empty=(@dir_list == 2);
+	&display_common($r,$url,$current_path,$is_empty,\@dir_list,$group);
+        &display_directory($r,$url,$current_path,$is_empty,\@dir_list,$group);
+	$r->print(&Apache::loncommon::end_page());
+    }
+    return OK;
+}
 1;
 __END__