devedit.pl

   1 #!C:/Programme/Perl/bin/perl.exe -w
   2
   3 #
   4 # Dev-Editor 3.1
   5 #
   6 # Dev-Editor's main program
   7 #
   8 # Author:        Patrick Canterino <patrick@patshaping.de>
   9 # Last modified: 2011-02-11
  10 #
  11 # Copyright (C) 1999-2000 Roland Bluethgen, Frank Schoenmann
  12 # Copyright (C) 2003-2011 Patrick Canterino
  13 # All Rights Reserved.
  14 #
  15 # This file can be distributed and/or modified under the terms of
  16 # of the Artistic License 2.0 (see also the LICENSE file found at
  17 # the top level of the Dev-Editor distribution).
  18 #
  19
  20 use strict;
  21 use CGI::Carp qw(fatalsToBrowser);
  22
  23 use vars qw($VERSION);
  24 use lib 'modules';
  25
  26 use CGI;
  27 use Config::DevEdit;
  28
  29 use Command;
  30 use Output;
  31 use Tool;
  32
  33 $VERSION = '3.2-dev';
  34
  35 # Path to configuration file
  36 # Change if necessary!
  37
  38 use constant CONFIGFILE => 'devedit.conf';
  39
  40 # Read the configuration file
  41
  42 my $config = read_config(CONFIGFILE);
  43 error_template($config->{'templates'}->{'error'}); # Yes, I'm lazy...
  44
  45 # Check if the root directory exists
  46
  47 abort($config->{'errors'}->{'no_root_dir'}) unless(-d $config->{'fileroot'} && not -l $config->{'fileroot'});
  48
  49 # Check if we are able to access the root directory
  50
  51 abort($config->{'errors'}->{'no_root_access'}) unless(-r $config->{'fileroot'} && -x $config->{'fileroot'});
  52
  53 # Read the most important form data
  54
  55 my $cgi = new CGI;
  56
  57 my $command = $cgi->param('command') || 'show';
  58 my $file    = $cgi->param('file')    || $config->{'startdir'} || '/';
  59 my $curdir  = $cgi->param('curdir')  || '';
  60 my $newfile = $cgi->param('newfile') || '';
  61
  62 # Check if the command is disabled
  63
  64 if(is_disabled_command($config->{'disable_commands'},$command))
  65 {
  66  abort($config->{'errors'}->{'command_disabled'},'/',{COMMAND => encode_html($command)});
  67 }
  68
  69 # Create physical and virtual path for the new file
  70
  71 my $new_physical = '';
  72 my $new_virtual  = '';
  73
  74 if($newfile ne '' && $newfile !~ /^\s+$/)
  75 {
  76  my $path = $curdir.'/'.$newfile;
  77
  78  # Extract file and directory name...
  79
  80  my $file = file_name($path);
  81  my $dir  = upper_path($path);
  82
  83  # ... check if the directory exists ...
  84
  85  my $temp_path = clean_path($config->{'fileroot'}.'/'.$dir);
  86
  87  unless(-d $temp_path && not -l $temp_path)
  88  {
  89   abort($config->{'errors'}->{'dir_not_exist'},'/');
  90  }
  91
  92  # ... and check if the path is above the root directory
  93
  94  unless(($new_physical,$new_virtual) = check_path($config->{'fileroot'},$dir))
  95  {
  96   abort($config->{'errors'}->{'create_above_root'},'/');
  97  }
  98
  99  # Check if we have enough permissions to create a file
 100  # in this directory
 101
 102  unless(-r $new_physical && -w $new_physical && -x $new_physical)
 103  {
 104   abort($config->{'errors'}->{'dir_no_create'},'/',{DIR => encode_html($new_virtual)});
 105  }
 106
 107  # Create the physical and the virtual path
 108
 109  $new_physical = File::Spec->canonpath($new_physical.'/'.$file);
 110  $new_virtual .= $file;
 111
 112  # Check if accessing this file is forbidden
 113
 114  if(is_forbidden_file($config->{'forbidden'},$new_virtual))
 115  {
 116   abort($config->{'errors'}->{'forbidden_file'},'/');
 117  }
 118 }
 119
 120 # This check has to be performed first or abs_path() will be confused
 121
 122 my $temp_path = clean_path($config->{'fileroot'}.'/'.$file);
 123
 124 if(-e $temp_path || -l $temp_path)
 125 {
 126  if(my ($physical,$virtual) = check_path($config->{'fileroot'},$file))
 127  {
 128   if(is_forbidden_file($config->{'forbidden'},$virtual))
 129   {
 130    abort($config->{'errors'}->{'forbidden_file'},'/');
 131   }
 132   else
 133   {
 134    # Create a hash containing data submitted by the user
 135    # (some other necessary information are also included)
 136
 137    my %data = (physical     => $physical,
 138                virtual      => $virtual,
 139                new_physical => $new_physical,
 140                new_virtual  => $new_virtual,
 141                cgi          => $cgi,
 142                version      => $VERSION,
 143                configfile   => CONFIGFILE);
 144
 145    # Execute the command...
 146
 147    my $output = exec_command($command,\%data,$config);
 148
 149    # ... and show its output
 150
 151    print $$output;
 152   }
 153  }
 154  else
 155  {
 156   abort($config->{'errors'}->{'above_root'},'/');
 157  }
 158 }
 159 else
 160 {
 161  abort($config->{'errors'}->{'not_found'},'/');
 162 }
 163
 164 #
 165 ### End ###