devedit.pl

   1 #!C:/Programme/Perl/bin/perl.exe -w
   2
   3 #
   4 # Dev-Editor 2.1a
   5 #
   6 # Dev-Editor's main program
   7 #
   8 # Author:        Patrick Canterino <patrick@patshaping.de>
   9 # Last modified: 2004-11-26
  10 #
  11
  12 use strict;
  13 use CGI::Carp qw(fatalsToBrowser);
  14
  15 use vars qw($VERSION);
  16 use lib 'modules';
  17
  18 use CGI;
  19 use Config::DevEdit;
  20 use File::UseList;
  21
  22 use Command;
  23 use Output;
  24 use Tool;
  25
  26 $VERSION = '2.1a';
  27
  28 # Path to configuration file
  29 # Change if necessary!
  30
  31 use constant CONFIGFILE => 'devedit.dat';
  32
  33 # Read the configuration file
  34
  35 my $config = read_config(CONFIGFILE);
  36 error_template($config->{'templates'}->{'error'}); # Yes, I'm lazy...
  37
  38 # Check if the root directory exists
  39
  40 abort($config->{'errors'}->{'no_root_dir'}) unless(-d $config->{'fileroot'});
  41
  42 # Check if we are able to access the root directory
  43
  44 abort($config->{'errors'}->{'no_root_access'}) unless(-r $config->{'fileroot'} && -x $config->{'fileroot'});
  45
  46 # Read the most important form data
  47
  48 my $cgi = new CGI;
  49
  50 my $command = $cgi->param('command') || 'show';
  51 my $file    = $cgi->param('file')    || '/';
  52 my $curdir  = $cgi->param('curdir')  || '';
  53 my $newfile = $cgi->param('newfile') || '';
  54
  55 # Create physical and virtual path for the new file
  56 # This section has to be optimized - ugh!
  57
  58 my $new_physical = '';
  59 my $new_virtual  = '';
  60
  61 if($newfile ne '' && $newfile !~ /^\s+$/)
  62 {
  63  $curdir  = upper_path($file) if($curdir eq '');
  64  my $path = clean_path($curdir.$newfile);
  65
  66  # Extract file and directory name...
  67
  68  my $file = file_name($path);
  69  my $dir  = upper_path($path);
  70
  71  # ... check if the directory exists ...
  72
  73  unless(-d clean_path($config->{'fileroot'}."/".$dir))
  74  {
  75   abort($config->{'errors'}->{'dir_not_exist'},"/");
  76  }
  77
  78  # ... and check if the path is above the root directory
  79
  80  unless(($new_physical,$new_virtual) = check_path($config->{'fileroot'},$dir))
  81  {
  82   abort($config->{'errors'}->{'create_ar'},"/");
  83  }
  84
  85  # Check if we have enough permissions to create a file
  86  # in this directory
  87
  88  unless(-r $new_physical && -w $new_physical && -x $new_physical)
  89  {
  90   abort($config->{'errors'}->{'dir_no_create'},"/",{DIR => $new_virtual});
  91  }
  92
  93  # Create the physical and the virtual path
  94
  95  $new_physical = File::Spec->canonpath($new_physical."/".$file);
  96  $new_virtual .= $file;
  97 }
  98
  99 # This check has to be performed first or abs_path() will be confused
 100
 101 if(-e clean_path($config->{'fileroot'}."/".$file))
 102 {
 103  if(my ($physical,$virtual) = check_path($config->{'fileroot'},$file))
 104  {
 105   # Create a File::UseList object and load the list
 106
 107   my $uselist = new File::UseList(listfile => $config->{'uselist_file'},
 108                                   lockfile => $config->{'lock_file'},
 109                                   timeout  => $config->{'lock_timeout'});
 110
 111   $uselist->lock or abort($config->{'errors'}->{'lock_failed'},undef,{USELIST => $config->{'uselist_file'}, LOCK_FILE => $config->{'lock_file'}});
 112   $uselist->load;
 113
 114   # Create a hash with data submitted by user
 115   # (some other necessary information will also be included)
 116
 117   my %data = (physical     => $physical,
 118               virtual      => $virtual,
 119               new_physical => $new_physical,
 120               new_virtual  => $new_virtual,
 121               uselist      => $uselist,
 122               cgi          => $cgi,
 123               version      => $VERSION,
 124               configfile   => CONFIGFILE);
 125
 126   my $output = exec_command($command,\%data,$config); # Execute the command...
 127
 128   $uselist->unlock; # ... unlock the list with files in use...
 129   print $$output;   # ... and show the output of the command
 130  }
 131  else
 132  {
 133   abort($config->{'errors'}->{'above_root'},"/");
 134  }
 135 }
 136 else
 137 {
 138  abort($config->{'errors'}->{'not_exist'},"/");
 139 }
 140
 141 #
 142 ### End ###