Class: Rex::Exploitation::Js::Network

Inherits:
Object
  • Object
show all
Defined in:
lib/rex/exploitation/js/network.rb

Overview

Provides networking functions in JavaScript

Class Method Summary collapse

Class Method Details

.ajax_download(opts = {}) ⇒ String

Returns javascript code to perform a synchronous ajax request to the remote and returns the response.

Parameters:

  • opts (Hash) (defaults to: {}) —

    the options hash

Options Hash (opts):

  • :obfuscate (Boolean) —

    toggles js obfuscation. defaults to true.

  • :inject_xhr_shim (Boolean) —

    automatically stubs XHR to use ActiveXObject when needed. defaults to true.

Returns:

  • (String) —

    javascript code to perform a synchronous ajax request to the remote and returns the response



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'lib/rex/exploitation/js/network.rb', line 19

def self.ajax_download(opts={})
  should_obfuscate = opts.fetch(:obfuscate, true)
  js = ::File.read(::File.join(Rex::Exploitation::DATA_DIR, "js", "network", "ajax_download.js"))

  if should_obfuscate
    js = ::Rex::Exploitation::ObfuscateJS.new(js,
      {
        'Symbols' => {
          'Variables' => %w{ xmlHttp oArg }
        }
    }).obfuscate
  end

  xhr_shim(opts) + js
end

.ajax_post(opts = {}) ⇒ String

Returns javascript code to perform a synchronous or asynchronous ajax request to the remote with the data specified.

Parameters:

  • opts (Hash) (defaults to: {}) —

    the options hash

Options Hash (opts):

  • :obfuscate (Boolean) —

    toggles js obfuscation. defaults to true.

  • :inject_xhr_shim (Boolean) —

    automatically stubs XHR to use ActiveXObject when needed. defaults to true.

Returns:

  • (String) —

    javascript code to perform a synchronous or asynchronous ajax request to the remote with the data specified.



41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
 
# File 'lib/rex/exploitation/js/network.rb', line 41

def self.ajax_post(opts={})
  should_obfuscate = opts.fetch(:obfuscate, true)
  js = ::File.read(::File.join(Rex::Exploitation::DATA_DIR, "js", "network", "ajax_post.js"))

  if should_obfuscate
    js = ::Rex::Exploitation::ObfuscateJS.new(js,
      {
        'Symbols' => {
          'Variables' => %w{ xmlHttp cb path data }
        }
      }).obfuscate
  end

  xhr_shim(opts) + js
end

.xhr_shim(opts = {}) ⇒ String

Returns javascript code that adds XMLHttpRequest to the global scope if it does not exist (e.g. on IE6, where you have to use the ActiveXObject constructor).

Parameters:

  • opts (Hash) (defaults to: {}) —

    the options hash

Options Hash (opts):

  • :obfuscate (Boolean) —

    toggles js obfuscation. defaults to true.

  • :inject_xhr_shim (Boolean) —

    false causes this method to return ". defaults to true.

Returns:

  • (String) —

    javascript code that adds XMLHttpRequest to the global scope if it does not exist (e.g. on IE6, where you have to use the ActiveXObject constructor)



62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
 
# File 'lib/rex/exploitation/js/network.rb', line 62

def self.xhr_shim(opts={})
  return '' unless opts.fetch(:inject_xhr_shim, true)

  should_obfuscate = opts.fetch(:obfuscate, true)
  js = ::File.read(::File.join(Rex::Exploitation::DATA_DIR, "js", "network", "xhr_shim.js"))

  if should_obfuscate
    js = ::Rex::Exploitation::ObfuscateJS.new(js,
      {
        'Symbols' => {
          'Variables' => %w{ activeObjs idx }
        }
      }
    ).obfuscate
  end
  js
end