--- loncom/interface/portfolio.pm	2004/06/18 20:42:16	1.2
+++ loncom/interface/portfolio.pm	2004/08/25 18:48:26	1.33
@@ -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);
@@ -7,37 +30,467 @@ use Apache::lontexconvert;
 use Apache::lonfeedback;
 use Apache::lonlocal;
 
-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 />');	
-		$r->print ('<br /> call to userfileupload precedes <br />');
-	}
+# receives a file name and path stub from username/userfiles/portfolio/
+# returns an anchor tag consisting encoding filename and currentpath
+sub make_anchor {
+    my ($filename, $current_path) = @_;
+    my $anchor = '<a href="/adm/portfolio?selectfile='.$filename.'&currentpath='.$current_path.'">'.$filename.'</a>';
+    return $anchor;
+}
 
-	$r->print ($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">'
-		);
-	$r->print('</form>');
-	return OK;
+# returns html with <br /> separated contents of the directory
+# returns a <strong>currentFile</strong> (bolds the selected file/dir)
+sub display_directory_old {
+    my ($currentPath, $currentFile, @dirList,) = @_;
+    my $displayOut='';  
+    my $filename;
+    my $upPath;
+    if ($currentPath ne '/') {
+        $displayOut = 'Listing of '.$currentPath.'<br /><hr />';
+        # provides the "up one directory level" function
+        # it means shortening the currentpath to the parent directory
+        $currentPath =~ m:(^/.*)(/.*/$):;
+        if ($1 ne '/') {
+            $upPath = $1.'/';
+        } else {
+            $upPath = $1;
+        }
+        
+        # $displayOut = $displayOut.'<a href="/adm/portfolio?selectfile='.$upPath.'&currentpath='.$upPath.'">..</a><br />';
+    } else {
+        # $displayOut = $displayOut.'at root '.$currentPath.'<br />';
+    }
+    foreach my $line (@dirList) {
+    	#$strip holds directory/file name
+    	#$dom 
+    	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
+        if (($filename ne '.') && ($filename ne '..')) {
+            if ($testdir =~ m:^1:) {
+                # handle directories different from files
+                if ($filename eq $currentFile) {
+		    #checks to bold the selected file
+                    $displayOut.= '<strong>'.(&make_anchor($filename.'/', $filename.'/').'</strong><br />'."\n");
+                } else {
+                    $displayOut.= (&make_anchor($filename.'/', $filename.'/').'<br />'."\n");
+                }
+            } else {
+                if ($filename eq $currentFile) {
+		    #checks to bold the selected file
+                    $displayOut.='<strong>'.(&make_anchor($filename, $currentPath).'</strong><br />'."\n");
+                } else {
+                    $displayOut.=(&make_anchor($filename, $currentPath).'<br />'."\n");
+                }
+            }
+            
+        }
+    	
+    }
+    return $displayOut;
+}
+
+sub displayActions {
+    # returns html to offer user appropriate actions depending on selected file/directory
+    my $displayOut;
+    my ($currentPath, $currentFile, $isEmpty) = @_;
+#   $displayOut = 'here are actions for '.$currentFile;
+    if ($currentFile =~ m:/$:) {
+        # if the selected file is a directory, these are the options
+        # offer the chance to delete the directory only if it is empty
+        if ($isEmpty && ($currentPath ne '/')) {
+            $displayOut =   $displayOut.'<form method="POST">
+            <input type="hidden" name="selectfile" 
+            value="'.$currentFile.'" />
+            <input type="hidden" name="fileaction" value="delete" /> 
+            <input type="hidden" name="currentpath" value="'.$currentPath.'" /> 
+            <center>
+            <input type="submit" 
+            value="Delete '.$currentFile.'" />
+            </center>
+            </form>';
+        } 
+        if ($currentPath ne '/') {
+            $displayOut = $displayOut.'<hr />
+            <form method="POST">
+            <input type="hidden" name="selectfile" 
+            value="'.$currentFile.'" />
+            <input type="hidden" name="fileaction" value="rename" /> 
+            <input type="hidden" name="currentpath" value="'.$currentPath.'" /> 
+            <input type="input" name="filenewname" value="Type new name here" /> 
+            <input type="submit" 
+            value="Rename '.$currentFile.'" />
+            </form>';
+        }
+    } else {  #action options offered for files
+        $displayOut = $displayOut.'<form method="POST">';
+        $displayOut = $displayOut.'<input type="hidden" name="selectfile"';
+        $displayOut = $displayOut.'value="'.$currentFile;
+        $displayOut = $displayOut.'" /><input type="hidden" name="fileaction" value="delete" /> 
+        <input type="hidden" name="currentpath" value="'.$currentPath.'" /> 
+        <center>
+        <input type="submit"
+        value="Delete '.$currentFile.'" />
+        </center>
+        </form>';
+    
+        $displayOut = $displayOut.'<hr />
+        <form method="POST">
+        <input type="hidden" name="selectfile" 
+        value="'.$currentFile.'" />
+        <input type="hidden" name="fileaction" value="rename" /> 
+        <input type="hidden" name="currentpath" value="'.$currentPath.'" /> 
+        <input type="input" name="filenewname" value="Type new name here" /> 
+        <input type="submit" 
+        value="Rename '.$currentFile.'" />
+        </form>
+        <hr />';
+    }
+    $displayOut = $displayOut.'<hr />Add a file to '.$currentPath;
+    # file upload form 
+    $displayOut = $displayOut.'<form method="post" enctype="multipart/form-data">';
+    $displayOut = $displayOut.'<input name="uploaddoc" type="file" />'.
+        '<input type="hidden" name="currentpath" value="'.$currentPath.'" />'.
+        '<input type="submit" name="storeupl" value="Upload" />'.
+        '</form><hr />';
+    $displayOut = $displayOut.'<form method="POST">
+        <input name="subdir" type="text" />
+        <input type="submit" value="Create Subdirectory" />
+        </form>
+            ';
+    return $displayOut;
+}
+
+my $dirptr=16384;
+sub display_directory {
+    my ($r,$current_path,$is_empty,$dir_list)=@_;
+    my $iconpath= $r->dir_config('lonIconsURL') . "/";
+    $r->print('<table border="0" cellspacing="2" cellpadding="2"><tr valign="middle">');
+    $r->print('<td bgcolor="#ccddaa" align="center">');
+    my $displayOut = '<form method="post" enctype="multipart/form-data">';
+    $displayOut = $displayOut.'<input name="uploaddoc" type="file" />'.
+        '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
+        '<input type="submit" name="storeupl" value="Upload" />'.
+        '</form>';
+    $r->print($displayOut);
+    $r->print('</td></tr><tr><td bgcolor="#ccddaa" align="center">');
+    $displayOut = '<form method="post">';
+    $displayOut .= '<input name="newdir" type="input" />'.
+        '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
+        '<input type="submit" name="createdir" value="'.&mt("Create Directory").'" />'.
+        '</form>';
+    $r->print($displayOut);
+    $r->print('</td></tr></table>');
+    my @tree = split (/\//,$current_path);
+    $r->print('<font size="+2">'.&make_anchor('portfolio','/').'/');
+    if (@tree > 1){
+        my $newCurrentPath = '';
+        for (my $i = 1; $i< @tree; $i++){
+            $newCurrentPath .= $tree[$i].'/';
+            $r->print(&make_anchor($tree[$i],'/'.$newCurrentPath).'/');
+        }
+    }
+    $r->print('</font>');
+    &Apache::lonhtmlcommon::store_recent('portfolio',$current_path,$current_path);
+    $r->print('<br /><form method=post action="/adm/portfolio">'.
+	      &Apache::lonhtmlcommon::select_recent('portfolio','currentpath',
+						    'this.form.submit();'));
+    $r->print("</form>");
+    if ($is_empty) {
+        $displayOut = '<form method="post" action="/adm/portfolio">'.
+        '<input type="hidden" name="action" value="deletedir" />'.
+        '<input type="submit" name="deletedir" value="'.&mt("Delete Directory").'" />'.
+        '<input type="hidden" name="selectfile" value="" />'.
+        '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
+        '</form>';
+        
+        $r->print($displayOut);
+	return;
+    }
+    $r->print('<table border="0" cellspacing="2" cellpadding="2">'.
+            '<tr><th>Actions</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
+    my $href_location="/uploaded/$ENV{'user.domain'}/$ENV{'user.name'}/portfolio/$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(/\&/,$line,16); 
+    	if (($filename ne '.') && ($filename ne '..')) {
+            if ($dirptr&$testdir) {
+                $r->print('<tr bgcolor="#FFAA99"><td><img src="'.$iconpath.'folder_closed.gif"></td>');
+                $r->print('<td>Go to ...</td>');
+                $r->print('<td>'.&make_anchor($filename.'/',$current_path.$filename.'/').'</td>'); 
+                $r->print('</tr>'); 
+            } else {
+                $r->print('<tr bgcolor="#CCCCFF">');
+                $r->print('<td>
+<form method="post" action="/adm/portfolio">
+<select name="action">
+  <option value=""></option>
+  <option value="delete">'.&mt("Delete").'</option>
+  <option value="rename">'.&mt("Rename").'</option>
+</select>
+<input type="submit" name="doit" value="Go" />
+<input type="hidden" name="selectfile" value="'.$filename.'" />
+<input type="hidden" name="currentpath" value="'.$current_path.'" />
+</form>
+</td>');
+                $r->print('<td><img src="'.$iconpath.'unknown.gif"></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>'); 
+            }
+        }
+    }
+#   <tr bgcolor="#FFAA99"> pink bg 
+#   <tr bgcolor="#CCCCFF"> blue bg            
+#   $r->print(&display_directory($current_path, $currentFile, @dir_list));
+#    $r->print('</td>><td>');
+#   $r->print(&display_actions($current_path, $currentFile, $isEmpty));
+    $r->print('</table></form>');
+}
+
+sub open_form {
+    my ($r)=@_;
+    $r->print('<form method="post" action="/adm/portfolio">');
+    $r->print('<input type="hidden" name="action" value="'.
+	      $ENV{'form.action'}.'" />');
+    $r->print('<input type="hidden" name="confirmed" value="1" />');
+    $r->print('<input type="hidden" name="selectfile" value="'.
+	      $ENV{'form.selectfile'}.'" />');
+    $r->print('<input type="hidden" name="currentpath" value="'.
+	      $ENV{'form.currentpath'}.'" />');
+}
+
+sub clean_filename {
+    my ($fname)=@_;
+# Replace Windows backslashes by forward slashes
+    $fname=~s/\\/\//g;
+# Get rid of everything but the actual filename
+    $fname=~s/^.*\/([^\/]+)$/$1/;
+# Replace spaces by underscores
+    $fname=~s/\s+/\_/g;
+# Replace all other weird characters by nothing
+    $fname=~s/[^\w\.\-]//g;
+    return $fname;
+}
+
+sub close_form {
+    my ($r)=@_;
+    $r->print('<p><input type="submit" value="'.&mt('Continue').
+	      '" /></p></form>');
+    $r->print('<form action="/adm/portfolio" method="POST">
+               <p>
+              <input type="hidden" name="currentpath" value="'.
+	      $ENV{'form.currentpath'}.'" />
+                 <input type="submit" value="'.&mt('Cancel').'" />
+               </p></form>');
+
+}
+
+sub display_file {
+    my ($path,$filename)=@_;
+    if (!defined($path)) { $path=$ENV{'form.currentpath'}; }
+    if (!defined($filename)) { $filename=$ENV{'form.selectfile'}; }
+    return '<tt>'.$path.$filename.'</tt>';
+}
 
+sub done {
+    return ('<h3><a href="/adm/portfolio?currentpath='.
+	    $ENV{'form.currentpath'}.'">'.&mt('Done').'</a></h3>');
 }
 
+sub delete {
+    my ($r)=@_;
+    &open_form($r);
+    $r->print('<p>'.&mt('Delete').' '.&display_file().'?</p>');
+    &close_form($r);
+} 
+
+sub delete_confirmed {
+    my ($r)=@_;
+    my $result=&Apache::lonnet::removeuserfile($ENV{'user.name'},
+					       $ENV{'user.domain'},'portfolio'.
+					       $ENV{'form.currentpath'}.
+					       $ENV{'form.selectfile'});
+    if ($result ne 'ok') {
+	$r->print('<font color="red"> An error occured ('.$result.
+		  ') while trying to delete '.&display_file().'</font><br />');
+    }
+    $r->print(&done());
+}
+
+sub delete_dir {
+    my ($r)=@_;
+    &open_form($r);
+    $r->print('<p>'.&mt('Delete').' '.&display_file().'?</p>');
+    &close_form($r);
+} 
+
+sub delete_dir_confirmed {
+    my ($r)=@_;
+    my $directory_name = $ENV{'form.currentpath'};
+    $directory_name =~ m/\/$/;
+    $directory_name = $`;
+    my $result=&Apache::lonnet::removeuserfile($ENV{'user.name'},
+					       $ENV{'user.domain'},'portfolio'.
+					       $directory_name);
+					       
+    if ($result ne 'ok') {
+	$r->print('<font color="red"> An error occured (dir) ('.$result.
+		  ') while trying to delete '.$directory_name.'</font><br />');
+    } else {
+        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;
+    }
+    $r->print(&done());
+}
+
+sub rename {
+    my ($r)=@_;
+    &open_form($r);
+    $r->print('<p>'.&mt('Rename').' '.&display_file().' to 
+               <input name="filenewname" type="input" size="50" />?</p>');
+    &close_form($r);
+}
+
+sub rename_confirmed {
+    my ($r)=@_;
+    my $filenewname=&Apache::lonnet::clean_filename($ENV{'form.filenewname'});
+    if ($filenewname eq '') {
+	$r->print('<font color="red">'.
+		  &mt("Error: no valid filename was provided to rename to.").
+		  '</font><br />');
+	$r->print(&done());
+	return;
+    } 
+    my $result=
+	&Apache::lonnet::renameuserfile($ENV{'user.name'},$ENV{'user.domain'},
+            'portfolio'.$ENV{'form.currentpath'}.$ENV{'form.selectfile'},
+            'portfolio'.$ENV{'form.currentpath'}.$ENV{'form.filenewname'});
+    if ($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 />');
+    }
+    $r->print(&done());
+}
+
+sub upload {
+    my ($r)=@_;
+    #FIXME if the file already exists we need to do a confirmation pass 
+    #before overwriting
+    my $fname=$ENV{'form.uploaddoc.filename'};
+    $fname=&clean_filename($fname);
+   	my $portfolio_root = &Apache::loncommon::propath($ENV{'user.domain'},
+						 $ENV{'user.name'}).
+						'/userfiles/portfolio';
+	my @dir_list=&Apache::lonnet::dirlist($ENV{'form.currentpath'},
+					    $ENV{'user.domain'},
+					    $ENV{'user.name'},$portfolio_root);
+  	my $found_file = 0;
+    foreach my $line (@dir_list) {
+    	#$strip holds directory/file name
+    	#$dom 
+    	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
+        if ($filename eq $fname){
+            $found_file = 1;
+        }
+    }
+    if ($found_file){   
+        $r->print('<font color="red">Unable to upload <strong>'.$fname.'</strong>, a file by that name was found in <strong>'.$ENV{'form.currentpath'}.'</strong></font>'.
+                  '<br />To upload, rename or delete existing '.$fname.' in '.$ENV{'form.currentpath'});
+    } else {
+        my $result=&Apache::lonnet::userfileupload('uploaddoc','',
+	        	 'portfolio'.$ENV{'form.currentpath'});
+        if ($result !~ m|^/uploaded/|) {
+        	$r->print('<font color="red"> An errror occured ('.$result.
+		              ') while trying to upload '.&display_file().'</font><br />');
+        }
+    }
+    $r->print(&done());
+}
+
+sub createdir {
+    my ($r)=@_;
+    #FIXME 1) file exists in place of dir (errormessage needs improvement)
+    my $newdir=&Apache::lonnet::clean_filename($ENV{'form.newdir'});
+    if ($newdir eq '') {
+	$r->print('<font color="red">'.
+		  &mt("Error: no valid directory name was provided.").
+		  '</font><br />');
+	$r->print(&done());
+	return;
+    } 
+    my $result=&Apache::lonnet::mkdiruserfile($ENV{'user.name'},
+	     $ENV{'user.domain'},'portfolio'.$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 />');
+    }
+    $r->print(&done());
+}
+
+sub handler {
+    # this handles file management
+    my $r = shift;
+	my $portfolio_root = &Apache::loncommon::propath($ENV{'user.domain'},
+							 $ENV{'user.name'}).
+							'/userfiles/portfolio';
+    &Apache::loncommon::no_cache($r);
+    &Apache::loncommon::content_type($r,'text/html');
+    $r->send_http_header;
+    # Give the LON-CAPA page header
+    $r->print('<html><head><title>'.
+              &mt('Portfolio Manager').
+              "</title></head>\n".
+              &Apache::loncommon::bodytag('Portfolio Manager'));
+    $r->rflush();
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+                                            ['selectfile','currentpath',
+					     'currentfile']);
+
+    if ($ENV{'form.uploaddoc.filename'}) {
+	&upload($r);
+    } elsif ($ENV{'form.action'} eq 'delete' && $ENV{'form.confirmed'}) {
+	&delete_confirmed($r);
+    } elsif ($ENV{'form.action'} eq 'delete') {
+	&delete($r);
+    } elsif ($ENV{'form.action'} eq 'deletedir' && $ENV{'form.confirmed'}) {
+	&delete_dir_confirmed($r);
+    } elsif ($ENV{'form.action'} eq 'deletedir'){
+	&delete_dir($r);
+    } elsif ($ENV{'form.action'} eq 'rename' && $ENV{'form.confirmed'}) {
+	&rename_confirmed($r);
+    } elsif ($ENV{'form.action'} eq 'rename') {
+	&rename($r);
+    } elsif ($ENV{'form.createdir'}) {
+	&createdir($r);
+    } else {
+	my $current_path='/';
+	if ($ENV{'form.currentpath'}) {
+	    $current_path = $ENV{'form.currentpath'};
+	}
+	my @dir_list=&Apache::lonnet::dirlist($current_path,
+					    $ENV{'user.domain'},
+					    $ENV{'user.name'},$portfolio_root);
+    
+	# need to know if directory is empty so it can be removed if desired
+	my $is_empty=(@dir_list == 2);
+	&display_directory($r,$current_path,$is_empty,\@dir_list);
+	$r->print("</body>\n</html>\n");
+	return OK;
+    }
+}
 1;
 __END__