*grr*

[devedit.git] / modules / Command.pm

diff --git a/modules/Command.pm b/modules/Command.pm
index 44419ba7eeb5cd5c59d2ddd62727a564c07f97a7..71193493f08f0c961939770e0f8fe61242ec57cf 100644 (file)
--- a/modules/Command.pm
+++ b/modules/Command.pm
@@ -5,39 +5,79 @@ package Command;
 #
 # Execute Dev-Editor's commands
 #
 #
 # Execute Dev-Editor's commands
 #

-# Author:        Patrick Canterino <patshaping@gmx.net>
-# Last modified: 2003-10-30
+# Author:        Patrick Canterino <patrick@patshaping.de>
+# Last modified: 2005-04-10

 #
 
 use strict;
 
 #
 
 use strict;
 

-use vars qw(@EXPORT
-            $script);
+use vars qw(@EXPORT);

 
 

+use Fcntl;

 use File::Access;
 use File::Copy;
 use File::Access;
 use File::Copy;

+use File::Path;

 
 

-use HTML::Entities;
-use Output;
+use Digest::MD5 qw(md5_hex);

 use POSIX qw(strftime);
 use Tool;
 
 use POSIX qw(strftime);
 use Tool;
 

-$script = $ENV{'SCRIPT_NAME'};
+use CGI qw(header
+           escape);
+
+use HTML::Entities;
+use Output;
+use Template;
+
+use Data::Dumper;
+
+my $script = encode_entities($ENV{'SCRIPT_NAME'});
+my $users  = eval('getpwuid(0)') && eval('getgrgid(0)');
+
+my %dispatch = ('show'       => \&exec_show,
+                'beginedit'  => \&exec_beginedit,
+                'endedit'    => \&exec_endedit,
+                'mkdir'      => \&exec_mkdir,
+                'mkfile'     => \&exec_mkfile,
+                'upload'     => \&exec_upload,
+                'copy'       => \&exec_copy,
+                'rename'     => \&exec_rename,
+                'remove'     => \&exec_remove,
+                'chprop'     => \&exec_chprop,
+                'about'      => \&exec_about
+               );

 
 ### Export ###
 
 use base qw(Exporter);
 
 
 ### Export ###
 
 use base qw(Exporter);
 

-@EXPORT = qw(exec_show
-             exec_beginedit
-             exec_endedit
-             exec_mkfile
-             exec_mkdir
-             exec_workwithfile
-             exec_copy
-             exec_rename
-             exec_remove
-             exec_unlock);
+@EXPORT = qw(exec_command);
+
+# exec_command()
+#
+# Execute the specified command
+#
+# Params: 1. Command to execute
+#         2. Reference to user input hash
+#         3. Reference to config hash
+#
+# Return: Output of the command (Scalar Reference)
+
+sub exec_command($$$)
+{
+ my ($command,$data,$config) = @_;
+
+ foreach(keys(%dispatch))
+ {
+  if(lc($_) eq lc($command))
+  {
+   my $output = &{$dispatch{$_}}($data,$config);
+   return $output;
+  }
+ }
+
+ return error($config->{'errors'}->{'command_unknown'},'/',{COMMAND => encode_entities($command)});
+}

 
 # exec_show()
 #
 
 # exec_show()
 #


@@ -48,157 +88,178 @@ use base qw(Exporter);
 #
 # Return: Output of the command (Scalar Reference)
 
 #
 # Return: Output of the command (Scalar Reference)
 

-sub exec_show($$$)
+sub exec_show($$)

 {
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};
 {
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};

- my $output;
+ my $upper_path     = encode_entities(upper_path($virtual));

 
 

- if(-d $physical)
+ my $tpl = new Template;
+
+ if(-d $physical && not -l $physical)

  {
   # Create directory listing
 
  {
   # Create directory listing
 

+  return error($config->{'errors'}->{'no_dir_access'},$upper_path) unless(-r $physical && -x $physical);
+

   my $direntries = dir_read($physical);
   my $direntries = dir_read($physical);

-  return error("Reading of directory $virtual failed.",upper_path($virtual)) unless($direntries);
+  return error($config->{'dir_read_fail'},$upper_path,{DIR => encode_entities($virtual)}) unless($direntries);

 
   my $files = $direntries->{'files'};
   my $dirs  = $direntries->{'dirs'};
 
 
   my $files = $direntries->{'files'};
   my $dirs  = $direntries->{'dirs'};
 

-  $output .= htmlhead("Directory listing of $virtual");
-  $output .= equal_url($config->{'httproot'},$virtual);
-  $output .= "<hr>\n\n<pre>\n";
+  my $dir_writeable = -w $physical;
+
+  my $dirlist = '';
+
+  my $filter1 = $data->{'cgi'}->param('filter') || '*';        # The real wildcard
+  my $filter2 = ($filter1 && $filter1 ne '*') ? $filter1 : ''; # Wildcard for output

 
   # Create the link to the upper directory
 
   # Create the link to the upper directory

-  # (only if we are not in the root directory)
+  # (only if the current directory is not the root directory)

 
 

-  unless($virtual eq "/")
+  unless($virtual eq '/')

   {
   {

-   my $upper = $physical."/..";
-   my @stat  = stat($upper);
-
-   $output .= "  [SUBDIR]  ";
-   $output .= strftime("%d.%m.%Y %H:%M",localtime($stat[9]));
-   $output .= " " x 10;
-   $output .= "<a href=\"$script?command=show&file=".encode_entities(upper_path($virtual))."\">../</a>\n";
-  }
+   my @stat  = stat($physical.'/..');

 
 

-  # Get the length of the longest file/directory name
+   my $udtpl = new Template;
+   $udtpl->read_file($config->{'templates'}->{'dirlist_up'});

 
 

-  my $max_name_len = 0;
+   $udtpl->fillin('UPPER_DIR',$upper_path);
+   $udtpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));

 
 

-  foreach(@$dirs,@$files)
-  {
-   my $length    = length($_);
-   $max_name_len = $length if($length > $max_name_len);
+   $dirlist .= $udtpl->get_template;

   }
 
   # Directories
 
   foreach my $dir(@$dirs)
   {
   }
 
   # Directories
 
   foreach my $dir(@$dirs)
   {

-   my @stat = stat($physical."/".$dir);
+   next unless(dos_wildcard_match($filter1,$dir));
+
+   my $phys_path = $physical.'/'.$dir;
+   my $virt_path = encode_entities($virtual.$dir.'/');
+
+   my @stat      = stat($phys_path);

 
 

-   $output .= "  ";
-   $output .= "[SUBDIR]  ";
-   $output .= strftime($config->{'timeformat'},localtime($stat[9]));
-   $output .= " " x 10;
-   $output .= "<a href=\"$script?command=show&file=".encode_entities($virtual.$dir)."/\">".encode_entities($dir)."/</a>\n";
+   my $dtpl = new Template;
+   $dtpl->read_file($config->{'templates'}->{'dirlist_dir'});
+
+   $dtpl->fillin('DIR',$virt_path);
+   $dtpl->fillin('DIR_NAME',encode_entities($dir));
+   $dtpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
+   $dtpl->fillin('URL',equal_url(encode_entities($config->{'httproot'}),$virt_path));
+
+   $dtpl->parse_if_block('readable',-r $phys_path && -x $phys_path);
+   $dtpl->parse_if_block('users',$users && -o $phys_path);
+
+   $dirlist .= $dtpl->get_template;

   }
 
   # Files
 
   foreach my $file(@$files)
   {
   }
 
   # Files
 
   foreach my $file(@$files)
   {

-   my $phys_path = $physical."/".$file;
+   next unless(dos_wildcard_match($filter1,$file));
+
+   my $phys_path = $physical.'/'.$file;

    my $virt_path = encode_entities($virtual.$file);
 
    my $virt_path = encode_entities($virtual.$file);
 

-   my @stat      = stat($phys_path);
-   my $in_use    = $data->{'uselist'}->in_use($virtual.$file);
+   my @stat      = lstat($phys_path);
+   my $too_large = $config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'};
+
+   my $ftpl = new Template;
+   $ftpl->read_file($config->{'templates'}->{'dirlist_file'});
+
+   $ftpl->fillin('FILE',$virt_path);
+   $ftpl->fillin('FILE_NAME',encode_entities($file));
+   $ftpl->fillin('SIZE',$stat[7]);
+   $ftpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
+   $ftpl->fillin('URL',equal_url(encode_entities($config->{'httproot'}),$virt_path));

 
 

-   $output .= " " x (10 - length($stat[7]));
-   $output .= $stat[7];
-   $output .= "  ";
-   $output .= strftime($config->{'timeformat'},localtime($stat[9]));
-   $output .= ($in_use) ? " (IN USE) " : (not -T $phys_path) ? " (BINARY) " : " " x 10;
-   $output .= encode_entities($file);
-   $output .= " " x ($max_name_len - length($file))."\t  (";
+   $ftpl->parse_if_block('link',-l $phys_path);
+   $ftpl->parse_if_block('no_link',not -l $phys_path);
+   $ftpl->parse_if_block('not_readable',not -r $phys_path);
+   $ftpl->parse_if_block('binary',-B $phys_path);
+   $ftpl->parse_if_block('readonly',not -w $phys_path);

 
 

-   $output .= (-r $phys_path && -T $phys_path)
-              ? "<a href=\"$script?command=show&file=$virt_path\">View</a>"
-              : '<span style="color:#C0C0C0">View</span>';
+   $ftpl->parse_if_block('viewable',(-r $phys_path && -T $phys_path && not $too_large) || -l $phys_path);
+   $ftpl->parse_if_block('editable',(-r $phys_path && -w $phys_path && -T $phys_path && not $too_large) && not -l $phys_path);

 
 

-   $output .= " | ";
+   $ftpl->parse_if_block('too_large',$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});

 
 

-   $output .= (-w $phys_path && -r $phys_path && -T $phys_path && not $in_use)
-              ? "<a href=\"$script?command=beginedit&file=$virt_path\">Edit</a>"
-              : '<span style="color:#C0C0C0">Edit</span>';
+   $ftpl->parse_if_block('users',$users && -o $phys_path);

 
 

-   $output .= " | <a href=\"$script?command=workwithfile&file=$virt_path\">Do other stuff</a>)\n";
+   $dirlist .= $ftpl->get_template;

   }
 
   }
 

-  $output .= "</pre>\n\n<hr>\n\n";
-
-  # Bottom of directory listing
-  # (Fields for creating files and directories)
-
-  $output .= <<END;
-<table border="0">
-<tr>
-<form action="$script">
-<input type="hidden" name="command" value="mkdir">
-<input type="hidden" name="curdir" value="$virtual">
-<td>Create new directory:</td>
-<td>$virtual <input type="text" name="newfile"> <input type="submit" value="Create!"></td>
-</form>
-</tr>
-<tr>
-<td>Create new file:</td>
-<form action="$script">
-<input type="hidden" name="command" value="mkfile">
-<input type="hidden" name="curdir" value="$virtual">
-<td>$virtual <input type="text" name="newfile"> <input type="submit" value="Create!"></td>
-</form>
-</tr>
-</table>
-
-<hr>
-END
-  $output .= htmlfoot;
+  $tpl->read_file($config->{'templates'}->{'dirlist'});
+
+  $tpl->fillin('DIRLIST',$dirlist);
+  $tpl->fillin('DIR',encode_entities($virtual));
+  $tpl->fillin('SCRIPT',$script);
+  $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
+
+  $tpl->fillin('FILTER',encode_entities($filter2));
+  $tpl->fillin('FILTER_URL',escape($filter2));
+
+  $tpl->parse_if_block('empty',$dirlist eq '');
+  $tpl->parse_if_block('dir_writeable',$dir_writeable);
+  $tpl->parse_if_block('filter',$filter2);
+  $tpl->parse_if_block('gmt',$config->{'use_gmt'});
+ }
+ elsif(-l $physical)
+ {
+  # Show the target of a symbolic link
+
+  my $link_target = readlink($physical);
+
+  $tpl->read_file($config->{'templates'}->{'viewlink'});
+
+  $tpl->fillin('FILE',encode_entities($virtual));
+  $tpl->fillin('DIR',$upper_path);
+  $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
+  $tpl->fillin('SCRIPT',$script);
+
+  $tpl->fillin('LINK_TARGET',encode_entities($link_target));

  }
  else
  {
   # View a file
 
  }
  else
  {
   # View a file
 

-  return error("You have not enough permissions to view this file.",upper_path($virtual)) unless(-r $physical);
+  return error($config->{'errors'}->{'no_view'},$upper_path) unless(-r $physical);

 
   # Check on binary files
 
   # Check on binary files

-  # We have to do it in this way, or empty files
-  # will be recognized as binary files
+  # We have to do it in this way or empty files will be recognized
+  # as binary files

 
 

-  unless(-T $physical)
-  {
-   # Binary file
+  return error($config->{'errors'}->{'binary_file'},$upper_path) unless(-T $physical);

 
 

-   return error("This editor is not able to view/edit binary files.",upper_path($virtual));
-  }
-  else
-  {
-   # Text file
+  # Is the file too large?

 
 

-   $output  = htmlhead("Contents of file ".encode_entities($virtual));
-   $output .= equal_url($config->{'httproot'},$virtual);
-   $output .= dir_link($virtual);
+  return error($config->{'errors'}->{'file_too_large'},$upper_path,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});

 
 

-   $output .= '<div style="background-color:#FFFFE0;border:1px solid black;margin-top:10px;width:100%">'."\n";
-   $output .= '<pre style="color:#0000C0;">'."\n";
-   $output .= encode_entities(${file_read($physical)});
-   $output .= "\n</pre>\n</div>";
+  # View the file

 
 

-   $output .= htmlfoot;
-  }
+  my $content =  file_read($physical);
+  $$content   =~ s/\015\012|\012|\015/\n/g;
+
+  $tpl->read_file($config->{'templates'}->{'viewfile'});
+
+  $tpl->fillin('FILE',encode_entities($virtual));
+  $tpl->fillin('DIR',$upper_path);
+  $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
+  $tpl->fillin('SCRIPT',$script);
+
+  $tpl->parse_if_block('editable',-w $physical);
+
+  $tpl->fillin('CONTENT',encode_entities($$content));

  }
 
  }
 

+ my $output  = header(-type => 'text/html');
+ $output    .= $tpl->get_template;
+

  return \$output;
 }
 
  return \$output;
 }
 


@@ -216,70 +277,43 @@ sub exec_beginedit($$)
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};

- my $uselist        = $data->{'uselist'};
+ my $dir            = upper_path($virtual);
+ my $cgi            = $data->{'cgi'};

 
 

- return error("You cannot edit directories.",upper_path($virtual)) if(-d $physical);
- return error_in_use($virtual) if($uselist->in_use($virtual));
- return error("You have not enough permissions to edit this file.",upper_path($virtual)) unless(-r $physical && -w $physical);
+ return error($config->{'errors'}->{'link_edit'},$dir) if(-l $physical);
+ return error($config->{'errors'}->{'dir_edit'}, $dir) if(-d $physical);
+ return error($config->{'errors'}->{'no_edit'},  $dir) unless(-r $physical && -w $physical);

 
  # Check on binary files
 
 
  # Check on binary files
 

- unless(-T $physical)
- {
-  # Binary file
+ return error($config->{'errors'}->{'binary_file'},$dir) unless(-T $physical);

 
 

-  return error("This editor is not able to view/edit binary files.",upper_path($virtual));
- }
- else
- {
-  # Text file
+ # Is the file too large?

 
 

-  $uselist->add_file($virtual);
-  $uselist->save;
+ return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});

 
 

-  my $dir       = upper_path($virtual);
-  my $content   = encode_entities(${file_read($physical)});
+ # ... and show the editing form

 
 

-  my $equal_url = equal_url($config->{'httproot'},$virtual);
+ my $content =  file_read($physical,1);
+ my $md5sum  =  md5_hex($$content);
+ $$content   =~ s/\015\012|\012|\015/\n/g;

 
 

-  $virtual   = encode_entities($virtual);
+ my $tpl = new Template;
+ $tpl->read_file($config->{'templates'}->{'editfile'});

 
 

-  my $output = htmlhead("Edit file $virtual");
-  $output   .= $equal_url;
-  $output   .= <<END;
-<p><b style="color:#FF0000">Caution!</b> This file is locked for other users while you are editing it. To unlock it, click <i>Save and exit</i> or <i>Exit WITHOUT saving</i>. Please <b>don't</b> click the <i>Reload</i> button in your browser! This will confuse the editor.</p>
+ $tpl->fillin('FILE',$virtual);
+ $tpl->fillin('DIR',$dir);
+ $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+ $tpl->fillin('SCRIPT',$script);
+ $tpl->fillin('MD5SUM',$md5sum);
+ $tpl->fillin('CONTENT',encode_entities($$content));

 
 

-<form action="$script" method="get">
-<input type="hidden" name="command" value="canceledit">
-<input type="hidden" name="file" value="$virtual">
-<p><input type="submit" value="Exit WITHOUT saving"></p>
-</form>
+ $tpl->parse_if_block('error',0);

 
 

-<form action="$script" method="post">
-<input type="hidden" name="command" value="endedit">
-<input type="hidden" name="file" value="$virtual">
+ my $output = header(-type => 'text/html');
+ $output   .= $tpl->get_template;

 
 

-<table width="100%" border="1">
-<tr>
-<td width="50%" align="center">
-<input type="hidden" name="file" value="$virtual">
-<input type="checkbox" name="saveas" value="1"> Save as new file: $dir <input type=text name="newfile" value=""></td>
-<td width="50%" align="center"><input type="checkbox" name="encode_iso" value="1"> Encode ISO-8859-1 special chars</td>
-</tr>
-<tr>
-<td align="center"><input type="reset" value="Reset form"></td>
-<td align="center"><input type="submit" value="Save and exit"></td>
-</tr>
-</table>
-
-<textarea name="filecontent" rows="25" cols="120">$content</textarea>
-</form>
-END
-
-  $output .= htmlfoot;
-
-  return \$output;
- }
+ return \$output;

 }
 
 # exec_endedit()
 }
 
 # exec_endedit()


@@ -296,40 +330,88 @@ sub exec_endedit($$)
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};

- my $content        = $data->{'cgi'}->param('filecontent');
+ my $dir            = upper_path($virtual);
+ my $cgi            = $data->{'cgi'};
+ my $content        = $cgi->param('filecontent');
+ my $md5sum         = $cgi->param('md5sum');
+ my $output;

 
 

- return error("You cannot edit directories.") if(-d $physical);
- return error("You have not enough permissions to edit this file.",upper_path($virtual)) unless(-r $physical && -w $physical);
+ if(defined $content && $md5sum)
+ {
+  # Normalize newlines

 
 

- # Normalize newlines
+  $content =~ s/\015\012|\012|\015/\n/g;

 
 

- $content =~ s/\015\012|\012|\015/\n/g;
+  if($cgi->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
+  {
+   # Create the new filename

 
 

- if($data->{'cgi'}->param('encode_iso'))
- {
-  # Encode all ISO-8859-1 special chars
+   $physical = $data->{'new_physical'};
+   $virtual  = $data->{'new_virtual'};
+  }

 
 

-  $content = encode_entities($content,"\200-\377");
- }
+  return error($config->{'errors'}->{'link_edit'},$dir)      if(-l $physical);
+  return error($config->{'errors'}->{'dir_edit'},$dir)       if(-d $physical);
+  return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
+  return error($config->{'errors'}->{'text_to_binary'},$dir) if(-e $physical && not -T $physical);

 
 

- if($data->{'cgi'}->param('saveas'))
- {
-  # Create the new filename
+  # For technical reasons, we can't use file_save() for
+  # saving the file...

 
 

-  $physical = $data->{'new_physical'};
-  $virtual  = $data->{'new_virtual'};
- }
+  local *FILE;

 
 

- if(file_save($physical,\$content))
- {
-  # Saving of the file was successful - so unlock it!
+  sysopen(FILE,$physical,O_RDWR | O_CREAT) or return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
+  file_lock(*FILE,LOCK_EX)                 or do { close(FILE); return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual}) };
+  binmode(FILE);

 
 

-  return exec_unlock($data,$config);
- }
- else
- {
-  return error("Saving of file '".encode_entities($virtual)."' failed'.",upper_path($virtual));
+  my $md5 = new Digest::MD5;
+  $md5->addfile(*FILE);
+
+  my $md5_new = $md5->hexdigest;
+
+  if($md5_new ne $md5sum && not $cgi->param('saveas'))
+  {
+   # The file changed meanwhile
+
+   my $tpl = new Template;
+   $tpl->read_file($config->{'templates'}->{'editfile'});
+
+   $tpl->fillin('ERROR',$config->{'errors'}->{'edit_file_changed'});
+
+   $tpl->fillin('FILE',$virtual);
+   $tpl->fillin('DIR',$dir);
+   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+   $tpl->fillin('SCRIPT',$script);
+   $tpl->fillin('MD5SUM',$md5_new);
+   $tpl->fillin('CONTENT',encode_entities($content));
+
+   $tpl->parse_if_block('error',1);
+
+   my $data = header(-type => 'text/html');
+   $data   .= $tpl->get_template;
+
+   $output  = \$data;
+  }
+  else
+  {
+   # The file was saved successfully!
+
+   seek(FILE,0,0);
+   truncate(FILE,0);
+
+   print FILE $content;
+
+   $output = devedit_reload({command => 'show', file => $dir});
+
+   #return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
+  }
+
+  close(FILE);
+
+  return $output;

  }
  }

+
+ return devedit_reload({command => 'beginedit', file => $virtual});

 }
 
 # exec_mkfile()
 }
 
 # exec_mkfile()


@@ -349,10 +431,26 @@ sub exec_mkfile($$)
  my $dir            = upper_path($new_virtual);
  $new_virtual       = encode_entities($new_virtual);
 
  my $dir            = upper_path($new_virtual);
  $new_virtual       = encode_entities($new_virtual);
 

- return error("A file or directory called '$new_virtual' already exists.",$dir) if(-e $new_physical);
+ if($new_physical)
+ {
+  return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);

 
 

- file_create($new_physical) or return error("Could not create file '$new_virtual'.",$dir);
- return devedit_reload({command => 'show', file => $dir});
+  file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
+  return devedit_reload({command => 'show', file => $dir});
+ }
+ else
+ {
+  my $tpl = new Template;
+  $tpl->read_file($config->{'templates'}->{'mkfile'});
+
+  $tpl->fillin('DIR','/');
+  $tpl->fillin('SCRIPT',$script);
+
+  my $output = header(-type => 'text/html');
+  $output   .= $tpl->get_template;
+
+  return \$output;
+ }

 }
 
 # exec_mkdir()
 }
 
 # exec_mkdir()


@@ -372,107 +470,90 @@ sub exec_mkdir($$)
  my $dir            = upper_path($new_virtual);
  $new_virtual       = encode_entities($new_virtual);
 
  my $dir            = upper_path($new_virtual);
  $new_virtual       = encode_entities($new_virtual);
 

- return error("A file or directory called '$new_virtual' already exists.",$dir) if(-e $new_physical);
+ if($new_physical)
+ {
+  return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);

 
 

- mkdir($new_physical) or return error("Could not create directory '$new_virtual'.",$dir);
- return devedit_reload({command => 'show', file => $dir});
+  mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
+  return devedit_reload({command => 'show', file => $dir});
+ }
+ else
+ {
+  my $tpl = new Template;
+  $tpl->read_file($config->{'templates'}->{'mkdir'});
+
+  $tpl->fillin('DIR','/');
+  $tpl->fillin('SCRIPT',$script);
+
+  my $output = header(-type => 'text/html');
+  $output   .= $tpl->get_template;
+
+  return \$output;
+ }

 }
 
 }
 

-# exec_workwithfile()
+# exec_upload()

 #
 #

-# Display a form for renaming/copying/deleting/unlocking a file
+# Process a file upload

 #
 # Params: 1. Reference to user input hash
 #         2. Reference to config hash
 #
 # Return: Output of the command (Scalar Reference)
 
 #
 # Params: 1. Reference to user input hash
 #         2. Reference to config hash
 #
 # Return: Output of the command (Scalar Reference)
 

-sub exec_workwithfile($$)
+sub exec_upload($$)

 {
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};
 {
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};

- my $unused         = $data->{'uselist'}->unused($virtual);
-
- my $dir = encode_entities(upper_path($virtual));
-
- my $output = htmlhead("Work with file ".encode_entities($virtual));
- $output   .= equal_url($config->{'httproot'},$virtual);
-
- $virtual   = encode_entities($virtual);
+ my $cgi            = $data->{'cgi'};

 
 

- $output   .= dir_link($virtual);
- $output   .= "<p><b>Note:</b> On UNIX systems, filenames are <b>case-sensitive</b>!</p>\n\n";
+ return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical && not -l $physical);
+ return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);

 
 

- $output .= "<p>Someone else is currently editing this file. So not all features are available.</p>\n\n" unless($unused);
-
- $output .= "<hr>\n\n";
-
- # Copying of the file is always allowed - but we need read access
-
- if(-r $physical)
+ if(my $uploaded_file = $cgi->param('uploaded_file'))

  {
  {

-  $output .= <<END;
-<h2>Copy</h2>
-
-<form action="$script">
-<input type="hidden" name="command" value="copy">
-<input type="hidden" name="file" value="$virtual">
-<p>Copy file '$virtual' to: $dir <input type="text" name="newfile" size="50"> <input type="submit" value="Copy!"></p>
-</form>
+  # Process file upload

 
 

-<hr>
+  my $filename  = file_name($uploaded_file);
+  my $file_phys = $physical.'/'.$filename;
+  my $file_virt = $virtual.$filename;

 
 

-END
- }
-
- if($unused)
- {
-  # File is not locked
-  # Allow renaming and deleting the file
+  if(-e $file_phys)
+  {
+   return error($config->{'errors'}->{'link_replace'},$virtual)                        if(-l $file_phys);
+   return error($config->{'errors'}->{'dir_replace'},$virtual)                         if(-d $file_phys);
+   return error($config->{'errors'}->{'exist_no_write'},$virtual,{FILE => $file_virt}) unless(-w $file_phys);
+   return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt})    unless($cgi->param('overwrite'));
+  }

 
 

-  $output .= <<END;
-<h2>Move/rename</h2>
+  my $ascii     = $cgi->param('ascii');
+  my $handle    = $cgi->upload('uploaded_file');

 
 

-<form action="$script">
-<input type="hidden" name="command" value="rename">
-<input type="hidden" name="file" value="$virtual">
-<p>Move/Rename file '$virtual' to: $dir <input type="text" name="newfile" size="50"> <input type="submit" value="Move/Rename!"></p>
-</form>
+  return error($config->{'errors'}->{'invalid_upload'},$virtual) unless($handle);

 
 

-<hr>
+  # Read transferred file and write it to disk

 
 

-<h2>Delete</h2>
+  read($handle, my $data, -s $handle);
+  $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
+  file_save($file_phys,\$data,not $ascii) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});

 
 

-<form action="$script" method="get">
-<input type="hidden" name="file" value="$virtual">
-<input type="hidden" name="command" value="remove">
-<p><input type="submit" value="Delete file '$virtual'!"></p>
-</form>
-END
+  return devedit_reload({command => 'show', file => $virtual});

  }
  else
  {
  }
  else
  {

-  # File is locked
-  # Just display a button for unlocking it
+  my $tpl = new Template;
+  $tpl->read_file($config->{'templates'}->{'upload'});

 
 

-  $output .= <<END;
-<h2>Unlock file</h2>
+  $tpl->fillin('DIR',$virtual);
+  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+  $tpl->fillin('SCRIPT',$script);

 
 

-<p>Someone else is currently editing this file. At least, the file is marked so. Maybe, someone who was editing the file has forgotten to unlock it. In this case (and <b>only</b> in this case) you can unlock the file using this button:</p>
+  my $output = header(-type => 'text/html');
+  $output   .= $tpl->get_template;

 
 

-<form action="$script" method="get">
-<input type="hidden" name="file" value="$virtual">
-<input type="hidden" name="command" value="unlock">
-<p><input type="submit" value="Unlock file '$virtual'"></p>
-</form>
-END
+  return \$output;

  }
  }

-
- $output .= "\n<hr>";
- $output .= htmlfoot;
-
- return \$output;

 }
 
 # exec_copy()
 }
 
 # exec_copy()


@@ -489,21 +570,65 @@ sub exec_copy($$)
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = encode_entities($data->{'virtual'});
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = encode_entities($data->{'virtual'});

+ my $dir            = upper_path($virtual);

  my $new_physical   = $data->{'new_physical'};
  my $new_physical   = $data->{'new_physical'};

- my $new_virtual    = $data->{'new_virtual'};
- my $dir            = upper_path($new_virtual);
- $new_virtual       = encode_entities($new_virtual);

 
 

- return error("This editor is not able to copy directories.") if(-d $physical);
- return error("You have not enough permissions to copy this file.") unless(-r $physical);
+ return error($config->{'errors'}->{'link_copy'},$dir) if(-l $physical);
+ return error($config->{'errors'}->{'dir_copy'},$dir)  if(-d $physical);
+ return error($config->{'errors'}->{'no_copy'},$dir)   unless(-r $physical);

 
 

- if(-e $new_physical)
+ if($new_physical)

  {
  {

-  return error("A file or directory called '$new_virtual' already exists and this editor is currently not able to ask to overwrite the existing file or directory.",upper_path($virtual));
+  my $new_virtual = $data->{'new_virtual'};
+  my $new_dir     = upper_path($new_virtual);
+  $new_virtual    = encode_entities($new_virtual);
+
+  if(-e $new_physical)
+  {
+   return error($config->{'errors'}->{'link_replace'},$new_dir)                          if(-l $new_physical);
+   return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical);
+   return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
+
+   if(not $data->{'cgi'}->param('confirmed'))
+   {
+    my $tpl = new Template;
+    $tpl->read_file($config->{'templates'}->{'confirm_replace'});
+
+    $tpl->fillin('FILE',$virtual);
+    $tpl->fillin('NEW_FILE',$new_virtual);
+    $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
+    $tpl->fillin('NEW_DIR',$new_dir);
+    $tpl->fillin('DIR',$dir);
+
+    $tpl->fillin('COMMAND','copy');
+    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+    $tpl->fillin('SCRIPT',$script);
+
+    my $output = header(-type => 'text/html');
+    $output   .= $tpl->get_template;
+
+    return \$output;
+   }
+  }
+
+  copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
+  return devedit_reload({command => 'show', file => $new_dir});

  }
  }

+ else
+ {
+  my $tpl = new Template;
+  $tpl->read_file($config->{'templates'}->{'copyfile'});
+
+  $tpl->fillin('FILE',$virtual);
+  $tpl->fillin('DIR',$dir);
+  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+  $tpl->fillin('SCRIPT',$script);

 
 

- copy($physical,$new_physical) or return error("Could not copy '$virtual' to '$new_virtual'",upper_path($virtual));
- return devedit_reload({command => 'show', file => $dir});
+  my $output = header(-type => 'text/html');
+  $output   .= $tpl->get_template;
+
+  return \$output;
+ }

 }
 
 # exec_rename()
 }
 
 # exec_rename()


@@ -520,25 +645,68 @@ sub exec_rename($$)
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};

+ my $dir            = upper_path($virtual);

  my $new_physical   = $data->{'new_physical'};
  my $new_physical   = $data->{'new_physical'};

- my $new_virtual    = $data->{'new_virtual'};
- my $dir            = upper_path($new_virtual);
- $new_virtual       = encode_entities($new_virtual);

 
 

- return error_in_use($virtual) if($data->{'uselist'}->in_use($virtual));
+ return error($config->{'errors'}->{'rename_root'},'/')                if($virtual eq '/');
+ return error($config->{'errors'}->{'no_rename'},$dir)                 unless(-w upper_path($physical));

 
 

- if(-e $new_physical)
+ if($new_physical)

  {
  {

-  return error("A file or directory called '$new_virtual' already exists and this editor is currently not able to ask to overwrite the existing file or directory.",upper_path($virtual));
+  my $new_virtual = $data->{'new_virtual'};
+  my $new_dir     = upper_path($new_virtual);
+  $new_virtual    = encode_entities($new_virtual);
+
+  if(-e $new_physical)
+  {
+   return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical && not -l $new_physical);
+   return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
+
+   if(not $data->{'cgi'}->param('confirmed'))
+   {
+    my $tpl = new Template;
+    $tpl->read_file($config->{'templates'}->{'confirm_replace'});
+
+    $tpl->fillin('FILE',$virtual);
+    $tpl->fillin('NEW_FILE',$new_virtual);
+    $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
+    $tpl->fillin('NEW_DIR',$new_dir);
+    $tpl->fillin('DIR',$dir);
+
+    $tpl->fillin('COMMAND','rename');
+    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+    $tpl->fillin('SCRIPT',$script);
+
+    my $output = header(-type => 'text/html');
+    $output   .= $tpl->get_template;
+
+    return \$output;
+   }
+  }
+
+  move($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
+  return devedit_reload({command => 'show', file => $new_dir});

  }
  }

+ else
+ {
+  my $tpl = new Template;
+  $tpl->read_file($config->{'templates'}->{'renamefile'});
+
+  $tpl->fillin('FILE',$virtual);
+  $tpl->fillin('DIR',$dir);
+  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+  $tpl->fillin('SCRIPT',$script);
+
+  my $output = header(-type => 'text/html');
+  $output   .= $tpl->get_template;

 
 

- rename($physical,$new_physical) or return error("Could not move/rename '".encode_entities($virtual)."' to '$new_virtual'.",upper_path($virtual));
- return devedit_reload({command => 'show', file => $dir});
+  return \$output;
+ }

 }
 
 # exec_remove()
 #
 }
 
 # exec_remove()
 #

-# Remove a file and return to directory view
+# Remove a file or a directory and return to directory view

 #
 # Params: 1. Reference to user input hash
 #         2. Reference to config hash
 #
 # Params: 1. Reference to user input hash
 #         2. Reference to config hash


@@ -550,34 +718,247 @@ sub exec_remove($$)
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};
  my ($data,$config) = @_;
  my $physical       = $data->{'physical'};
  my $virtual        = $data->{'virtual'};

+ my $dir            = upper_path($virtual);

 
 

- return error("Deleting directories is currently unsupported.",upper_path($virtual)) if(-d $physical);
- return error_in_use($virtual) if($data->{'uselist'}->in_use($virtual));
+ return error($config->{'errors'}->{'remove_root'},'/') if($virtual eq '/');
+ return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
+
+ if(-d $physical && not -l $physical)
+ {
+  # Remove a directory

 
 

- unlink($physical) or return error("Could not delete file '".encode_entities($virtual)."'.",upper_path($virtual));
- return devedit_reload({command => 'show', file => upper_path($virtual)});
+  if($data->{'cgi'}->param('confirmed'))
+  {
+   rmtree($physical);
+   return devedit_reload({command => 'show', file => $dir});
+  }
+  else
+  {
+   my $tpl = new Template;
+   $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
+
+   $tpl->fillin('DIR',$virtual);
+   $tpl->fillin('UPPER_DIR',$dir);
+   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+   $tpl->fillin('SCRIPT',$script);
+
+   my $output = header(-type => 'text/html');
+   $output   .= $tpl->get_template;
+
+   return \$output;
+  }
+ }
+ else
+ {
+  # Remove a file
+
+  if($data->{'cgi'}->param('confirmed'))
+  {
+   unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
+   return devedit_reload({command => 'show', file => $dir});
+  }
+  else
+  {
+   my $tpl = new Template;
+   $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
+
+   $tpl->fillin('FILE',$virtual);
+   $tpl->fillin('DIR',$dir);
+   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+   $tpl->fillin('SCRIPT',$script);
+
+   my $output = header(-type => 'text/html');
+   $output   .= $tpl->get_template;
+
+   return \$output;
+  }
+ }

 }
 
 }
 

-# exec_unlock()
+# exec_chprop()

 #
 #

-# Remove a file from the list of used files and
-# return to directory view
+# Change the mode and the group of a file or a directory

 #
 # Params: 1. Reference to user input hash
 #         2. Reference to config hash
 #
 # Return: Output of the command (Scalar Reference)
 
 #
 # Params: 1. Reference to user input hash
 #         2. Reference to config hash
 #
 # Return: Output of the command (Scalar Reference)
 

-sub exec_unlock($$)
+sub exec_chprop($$)

 {
  my ($data,$config) = @_;
 {
  my ($data,$config) = @_;

+ my $physical       = $data->{'physical'};

  my $virtual        = $data->{'virtual'};
  my $virtual        = $data->{'virtual'};

- my $uselist        = $data->{'uselist'};
+ my $dir            = upper_path($virtual);
+
+ return error($config->{'errors'}->{'no_users'},$dir,{FILE => $virtual})  unless($users);
+ return error($config->{'errors'}->{'chprop_root'},'/')                   if($virtual eq '/');
+ return error($config->{'errors'}->{'not_owner'},$dir,{FILE => $virtual}) unless(-o $physical);
+ return error($config->{'errors'}->{'chprop_link'},$dir)                  if(-l $physical);
+
+ my $cgi   = $data->{'cgi'};
+ my $mode  = $cgi->param('mode');
+ my $group = $cgi->param('group');
+
+ if($mode || $group)
+ {
+  if($mode)
+  {
+   # Change the mode
+
+   chmod(oct($mode),$physical);
+  }
+
+  if($group)
+  {
+   # Change the group using the `chgrp` system command
+
+   return error($config->{'errors'}->{'invalid_group'},$dir,{GROUP => encode_entities($group)}) unless($group =~ /^[a-z0-9_]+[a-z0-9_-]*$/i);
+   system('chgrp',$group,$physical);
+  }
+
+  return devedit_reload({command => 'show', file => $dir});
+ }
+ else
+ {
+  # Display the form

 
 

- $uselist->remove_file($virtual);
- $uselist->save;
+  my @stat = stat($physical);
+  my $mode = $stat[2];
+  my $gid  = $stat[5];

 
 

- return devedit_reload({command => 'show', file => upper_path($virtual)});
+  my $tpl = new Template;
+  $tpl->read_file($config->{'templates'}->{'chprop'});
+
+  # Insert file properties into the template
+
+  $tpl->fillin('MODE_OCTAL',substr(sprintf('%04o',$mode),-4));
+  $tpl->fillin('MODE_STRING',mode_string($mode));
+  $tpl->fillin('GID',$gid);
+
+  if(my $group = getgrgid($gid))
+  {
+   $tpl->fillin('GROUP',encode_entities($group));
+   $tpl->parse_if_block('group_detected',1);
+  }
+  else
+  {
+   $tpl->parse_if_block('group_detected',0);
+  }
+
+  # Insert other information
+
+  $tpl->fillin('FILE',$virtual);
+  $tpl->fillin('DIR',$dir);
+  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
+  $tpl->fillin('SCRIPT',$script);
+
+  my $output = header(-type => 'text/html');
+  $output   .= $tpl->get_template;
+
+  return \$output;
+ }
+}
+
+# exec_about()
+#
+# Display some information about Dev-Editor
+#
+# Params: 1. Reference to user input hash
+#         2. Reference to config hash
+#
+# Return: Output of the command (Scalar Reference)
+
+sub exec_about($$)
+{
+ my ($data,$config) = @_;
+
+ my $tpl = new Template;
+ $tpl->read_file($config->{'templates'}->{'about'});
+
+ $tpl->fillin('SCRIPT',$script);
+
+ # Dev-Editor's version number
+
+ $tpl->fillin('VERSION',$data->{'version'});
+
+ # Some path information
+
+ $tpl->fillin('SCRIPT_PHYS',encode_entities($ENV{'SCRIPT_FILENAME'}));
+ $tpl->fillin('CONFIG_PATH',encode_entities($data->{'configfile'}));
+ $tpl->fillin('FILE_ROOT',  encode_entities($config->{'fileroot'}));
+ $tpl->fillin('HTTP_ROOT',  encode_entities($config->{'httproot'}));
+
+ # Perl
+
+ $tpl->fillin('PERL_PROG',encode_entities($^X));
+ $tpl->fillin('PERL_VER', sprintf('%vd',$^V));
+
+ # Information about the server
+
+ $tpl->fillin('HTTPD',encode_entities($ENV{'SERVER_SOFTWARE'}));
+ $tpl->fillin('OS',   encode_entities($^O));
+ $tpl->fillin('TIME', encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime : localtime)));
+
+ $tpl->parse_if_block('gmt',$config->{'use_gmt'});
+
+ # Process information
+
+ $tpl->fillin('PID',$$);
+
+ # The following information is only available on systems supporting
+ # users and groups
+
+ if($users)
+ {
+  # Dev-Editor is running on a system which allows users and groups
+  # So we display the user and the group of our process
+
+  my $uid = POSIX::getuid;
+  my $gid = POSIX::getgid;
+
+  $tpl->parse_if_block('users',1);
+
+  # ID's of user and group
+
+  $tpl->fillin('UID',$uid);
+  $tpl->fillin('GID',$gid);
+
+  # Names of user and group
+
+  if(my $user = getpwuid($uid))
+  {
+   $tpl->fillin('USER',encode_entities($user));
+   $tpl->parse_if_block('user_detected',1);
+  }
+  else
+  {
+   $tpl->parse_if_block('user_detected',0);
+  }
+
+  if(my $group = getgrgid($gid))
+  {
+   $tpl->fillin('GROUP',encode_entities($group));
+   $tpl->parse_if_block('group_detected',1);
+  }
+  else
+  {
+   $tpl->parse_if_block('group_detected',0);
+  }
+
+  # Process umask
+
+  $tpl->fillin('UMASK',sprintf('%04o',umask));
+ }
+ else
+ {
+  $tpl->parse_if_block('users',0);
+ }
+
+ my $output = header(-type => 'text/html');
+ $output   .= $tpl->get_template;
+
+ return \$output;

 }
 
 # it's true, baby ;-)
 }
 
 # it's true, baby ;-)