devedit.pl

   1 #!C:/Programme/Perl/bin/perl.exe -w
   2
   3 #
   4 # Dev-Editor 1.2
   5 #
   6 # Dev-Editor's main program
   7 #
   8 # Author:        Patrick Canterino <patshaping@gmx.net>
   9 # Last modified: 2004-01-16
  10 #
  11
  12 use strict;
  13 use CGI::Carp qw(fatalsToBrowser);
  14
  15 use lib 'modules';
  16
  17 use CGI;
  18 use Config::DevEdit;
  19 use File::UseList;
  20
  21 use Command;
  22 use Output;
  23 use Tool;
  24
  25 use constant CONFIGFILE => 'devedit.dat';
  26
  27 # Read the configuration file
  28
  29 my $config = read_config(CONFIGFILE);
  30
  31 # Read the most important form data
  32
  33 my $cgi = new CGI;
  34
  35 my $command = $cgi->param('command') || 'show';
  36 my $file    = $cgi->param('file')    || '/';
  37 my $curdir  = $cgi->param('curdir')  || '';
  38 my $newfile = $cgi->param('newfile') || '';
  39
  40 # Create physical and virtual path for the new file
  41 # This section has to be optimized - ugh!
  42
  43 my $new_physical = '';
  44 my $new_virtual  = '';
  45
  46 if($newfile ne '')
  47 {
  48  $curdir  = upper_path($file) if($curdir eq '');
  49  my $path = clean_path($curdir.$newfile);
  50
  51  # Extract file and directory name...
  52
  53  my $file = file_name($path);
  54  my $dir  = upper_path($path);
  55
  56  # ... check if the directory exists ...
  57
  58  unless(-d clean_path($config->{'fileroot'}."/".$dir))
  59  {
  60   abort("The directory where you want to create this file or directory doesn't exist.");
  61  }
  62
  63  # ... and check if the path is above the root directory
  64
  65  unless(($new_physical,$new_virtual) = check_path($config->{'fileroot'},$dir))
  66  {
  67   abort("You aren't allowed to create files and directories above the virtual root directory.");
  68  }
  69
  70  # Create the physical and the virtual path
  71
  72  $new_physical = File::Spec->canonpath($new_physical."/".$file);
  73  $new_virtual .= $file;
  74 }
  75
  76 # This check has to be performed first, or abs_path() will be confused
  77
  78 if(-e clean_path($config->{'fileroot'}."/".$file))
  79 {
  80  if(my ($physical,$virtual) = check_path($config->{'fileroot'},$file))
  81  {
  82   # Create a File::UseList object and load the list
  83
  84   my $uselist = new File::UseList(listfile => $config->{'uselist_file'},
  85                                   lockfile => $config->{'lock_file'},
  86                                   timeout  => $config->{'lock_timeout'});
  87
  88   $uselist->lock or abort("Locking of $config->{'uselist_file'} failed. Try it again in a moment. If the problem persists, ask someone to recreate the lock file ($config->{'lock_file'}).");
  89   $uselist->load;
  90
  91   # Create a hash with data submitted by user
  92   # (the CGI and the File::UseList object will also be included)
  93
  94   my %data = (physical     => $physical,
  95               virtual      => $virtual,
  96               new_physical => $new_physical,
  97               new_virtual  => $new_virtual,
  98               uselist      => $uselist,
  99               cgi          => $cgi);
 100
 101   my $output = exec_command($command,\%data,$config); # Execute the command...
 102
 103   $uselist->unlock; # ... unlock the list with files in use...
 104   print $$output;   # ... and print the output of the command
 105  }
 106  else
 107  {
 108   abort("Accessing files and directories above the virtual root directory is forbidden.");
 109  }
 110 }
 111 else
 112 {
 113  abort("File/directory does not exist.");
 114 }
 115
 116 #
 117 ### End ###