Class: Msf::Ui::Console::CommandDispatcher::Developer

Inherits:
Object
  • Object
show all
Includes:
Msf::Ui::Console::CommandDispatcher
Defined in:
lib/msf/ui/console/command_dispatcher/developer.rb

Constant Summary collapse

@@irb_opts =
Rex::Parser::Arguments.new(
  '-h' => [false, 'Help menu.'             ],
  '-e' => [true,  'Expression to evaluate.']
)
@@time_opts =
Rex::Parser::Arguments.new(
  ['-h', '--help'] => [ false, 'Help banner.' ],
  '--cpu' => [false, 'Profile the CPU usage.'],
  '--memory' => [false,  'Profile the memory usage.']
)
@@_servicemanager_opts =
Rex::Parser::Arguments.new(
  ['-l', '--list'] => [false, 'View the currently running services' ]
)

Instance Attribute Summary

Attributes included from Msf::Ui::Console::CommandDispatcher

#driver

Attributes included from Rex::Ui::Text::DispatcherShell::CommandDispatcher

#shell, #tab_complete_items

Instance Method Summary collapse

Methods included from Msf::Ui::Console::CommandDispatcher

#active_module, #active_module=, #active_session, #active_session=, #build_range_array, #docs_dir, #framework, #load_config, #log_error, #remove_lines

Methods included from Rex::Ui::Text::DispatcherShell::CommandDispatcher

#cmd_help, #cmd_help_help, #cmd_help_tabs, #deprecated_cmd, #deprecated_commands, #deprecated_help, #docs_dir, #help_to_s, included, #print, #print_error, #print_good, #print_line, #print_status, #print_warning, #tab_complete_directory, #tab_complete_filenames, #tab_complete_generic, #tab_complete_source_address, #unknown_command, #update_prompt

Constructor Details

#initialize(driver) ⇒ Developer

Returns a new instance of Developer.



22
23
24
25
26
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 22

def initialize(driver)
  super
  output, is_success = modified_files
  @modified_files = is_success ? output : []
end

Instance Method Details

#cmd__servicemanager(*args) ⇒ Object

Interact with framework's service manager



330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 330

def cmd__servicemanager(*args)
  if args.include?('-h') || args.include?('--help')
    cmd__servicemanager_help
    return false
  end

  opts = {}
  @@_servicemanager_opts.parse(args) do |opt, idx, val|
    case opt
    when '-l', '--list'
      opts[:list] = true
    end
  end

  if opts.empty?
    opts[:list] = true
  end

  if opts[:list]
    table = Rex::Text::Table.new(
      'Header'  => 'Services',
      'Indent'  => 1,
      'Columns' => ['Id', 'Name', 'References']
    )
    Rex::ServiceManager.instance.each.with_index do |(name, instance), id|
      # TODO: Update rex-core to support querying the reference count
      table << [id, name, instance.instance_variable_get(:@_references)]
    end

    if table.rows.empty?
      print_status("No framework services are currently running.")
    else
      print_line(table.to_s)
    end
  end
end

#cmd__servicemanager_helpObject



376
377
378
379
380
381
382
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 376

def cmd__servicemanager_help
  print_line 'Usage: servicemanager'
  print_line
  print_line 'Manage running framework services'
  print @@_servicemanager_opts.usage
  print_line
end

#cmd__servicemanager_tabs(_str, words) ⇒ Object

Tab completion for the _servicemanager command



370
371
372
373
374
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 370

def cmd__servicemanager_tabs(_str, words)
  return [] if words.length > 1

  @@_servicemanager_opts.option_keys
end

#cmd_edit(*args) ⇒ Object

Edit the current module or a file with the preferred editor



211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 211

def cmd_edit(*args)
  editing_module = false

  if args.length > 0
    path = File.expand_path(args[0])
  elsif active_module
    editing_module = true
    path = active_module.file_path
  end

  unless path
    print_error('Nothing to edit. Try using a module first or specifying a library file to edit.')
    return
  end

  editor = local_editor

  unless editor
    # ed(1) is the standard editor
    editor = 'ed'
    print_warning("LocalEditor or $VISUAL/$EDITOR should be set. Falling back on #{editor}.")
  end

  # XXX: No vprint_status in this context?
  # XXX: VERBOSE is a string instead of Bool??
  print_status("Launching #{editor} #{path}") if framework.datastore['VERBOSE'].to_s == 'true'

  unless system(*editor.split, path)
    print_error("Could not execute #{editor} #{path}")
    return
  end

  return if editing_module

  reload_file(path)
end

#cmd_edit_helpObject



199
200
201
202
203
204
205
206
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 199

def cmd_edit_help
  print_line 'Usage: edit [file/to/edit]'
  print_line
  print_line "Edit the currently active module or a local file with #{local_editor}."
  print_line 'If a library file is specified, it will automatically be reloaded after editing.'
  print_line 'Otherwise, you can reload the active module with "reload" or "rerun".'
  print_line
end

#cmd_edit_tabs(str, words) ⇒ Object

Tab completion for the edit command



251
252
253
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 251

def cmd_edit_tabs(str, words)
  tab_complete_filenames(str, words)
end

#cmd_irb(*args) ⇒ Object

Open an interactive Ruby shell in the current context



108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 108

def cmd_irb(*args)
  expressions = []

  # Parse the command options
  @@irb_opts.parse(args) do |opt, idx, val|
    case opt
    when '-e'
      expressions << val
    when '-h'
      cmd_irb_help
      return false
    end
  end

  if expressions.empty?
    print_status('Starting IRB shell...')

    Rex::Ui::Text::Shell::HistoryManager.with_context(name: :irb) do
      begin
        if active_module
          print_status("You are in #{active_module.fullname}\n")
          Rex::Ui::Text::IrbShell.new(active_module).run
        else
          print_status("You are in the \"framework\" object\n")
          Rex::Ui::Text::IrbShell.new(framework).run
        end
      rescue
        print_error("Error during IRB: #{$!}\n\n#{$@.join("\n")}")
      end
    end

    # Reset tab completion
    if (driver.input.supports_readline)
      driver.input.reset_tab_completion
    end
  else
    # XXX: No vprint_status here either
    if framework.datastore['VERBOSE'].to_s == 'true'
      print_status("You are executing expressions in #{binding.receiver}")
    end

    expressions.each { |expression| eval(expression, binding) }
  end
end

#cmd_irb_helpObject



98
99
100
101
102
103
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 98

def cmd_irb_help
  print_line 'Usage: irb'
  print_line
  print_line 'Open an interactive Ruby shell in the current context.'
  print @@irb_opts.usage
end

#cmd_irb_tabs(_str, words) ⇒ Object

Tab completion for the irb command



156
157
158
159
160
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 156

def cmd_irb_tabs(_str, words)
  return [] if words.length > 1

  @@irb_opts.option_keys
end

#cmd_log(*args) ⇒ Object

Display framework.log paged to the end if possible



307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 307

def cmd_log(*args)
  path = File.join(Msf::Config.log_directory, 'framework.log')

  # XXX: +G isn't portable and may hang on large files
  pager = local_pager.to_s.include?('less') ? "#{local_pager} +G" : local_pager

  unless pager
    pager = 'tail -n 50'
    print_warning("LocalPager or $PAGER/$MANPAGER should be set. Falling back on #{pager}.")
  end

  # XXX: No vprint_status in this context?
  # XXX: VERBOSE is a string instead of Bool??
  print_status("Launching #{pager} #{path}") if framework.datastore['VERBOSE'].to_s == 'true'

  unless system(*pager.split, path)
    print_error("Could not execute #{pager} #{path}")
  end
end

#cmd_log_helpObject



294
295
296
297
298
299
300
301
302
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 294

def cmd_log_help
  print_line 'Usage: log'
  print_line
  print_line 'Display framework.log paged to the end if possible.'
  print_line 'For full effect, "setg LogLevel 3" before running modules.'
  print_line
  print_line "Log location: #{File.join(Msf::Config.log_directory, 'framework.log')}"
  print_line
end

#cmd_pry(*args) ⇒ Object

Open the Pry debugger on the current module or Framework



172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 172

def cmd_pry(*args)
  if args.include?('-h')
    cmd_pry_help
    return
  end

  begin
    require 'pry'
  rescue LoadError
    print_error('Failed to load Pry, try "gem install pry"')
    return
  end

  print_status('Starting Pry shell...')

  Pry.config.history_load = false
  Rex::Ui::Text::Shell::HistoryManager.with_context(history_file: Msf::Config.pry_history, name: :pry) do
    if active_module
      print_status("You are in the \"#{active_module.fullname}\" module object\n")
      active_module.pry
    else
      print_status("You are in the \"framework\" object\n")
      framework.pry
    end
  end
end

#cmd_pry_helpObject



162
163
164
165
166
167
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 162

def cmd_pry_help
  print_line 'Usage: pry'
  print_line
  print_line 'Open the Pry debugger on the current module or Framework.'
  print_line
end

#cmd_reload_lib(*args) ⇒ Object

Reload Ruby library files from specified paths



262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 262

def cmd_reload_lib(*args)
  options = OptionParser.new do |opts|
    opts.banner = 'Usage: reload_lib lib/to/reload.rb [...]'
    opts.separator ''
    opts.separator 'Reload Ruby library files from specified paths.'
    opts.separator ''

    opts.on '-h', '--help', 'Help banner.' do
      return print(opts.help)
    end

    opts.on '-a', '--all', 'Reload all* changed files in your current Git working tree.
                                   *Excludes modules and non-Ruby files.' do
      return reload_changed_files
    end
  end

  # The remaining unparsed arguments are files
  files = options.order(args)

  return print(options.help) if files.empty?

  files.each { |file| reload_file(file) }
end

#cmd_reload_lib_helpObject



255
256
257
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 255

def cmd_reload_lib_help
  cmd_reload_lib('-h')
end

#cmd_reload_lib_tabs(str, words) ⇒ Object

Tab completion for the reload_lib command



290
291
292
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 290

def cmd_reload_lib_tabs(str, words)
  tab_complete_filenames(str, words)
end

#cmd_time(*args) ⇒ Object

Time how long in seconds a command takes to execute



387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 387

def cmd_time(*args)
  if args.empty? || args.first == '-h' || args.first == '--help'
    cmd_time_help
    return true
  end

  profiler = nil
  while args.first == '--cpu' || args.first == '--memory'
    profiler = args.shift
  end

  begin
    start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC)
    command = args.join(' ')

    case profiler
    when '--cpu'
      Metasploit::Framework::Profiler.record_cpu do
        driver.run_single(command)
      end
    when '--memory'
      Metasploit::Framework::Profiler.record_memory do
        driver.run_single(command)
      end
    else
      driver.run_single(command)
    end
  ensure
    end_time = Process.clock_gettime(Process::CLOCK_MONOTONIC)
    elapsed_time = end_time - start_time
    print_good("Command #{command.inspect} completed in #{elapsed_time} seconds")
  end
end

#cmd_time_helpObject



421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 421

def cmd_time_help
  print_line 'Usage: time [options] [command]'
  print_line
  print_line 'Time how long a command takes to execute in seconds. Also supports profiling options.'
  print_line
  print_line '   Usage:'
  print_line '      * time db_import ./db_import.html'
  print_line '      * time show exploits'
  print_line '      * time reload_all'
  print_line '      * time missing_command'
  print_line '      * time --cpu db_import ./db_import.html'
  print_line '      * time --memory db_import ./db_import.html'
  print @@time_opts.usage
  print_line
end

#commandsObject



32
33
34
35
36
37
38
39
40
41
42
43
44
45
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 32

def commands
  commands = {
    'irb'        => 'Open an interactive Ruby shell in the current context',
    'pry'        => 'Open the Pry debugger on the current module or Framework',
    'edit'       => 'Edit the current module or a file with the preferred editor',
    'reload_lib' => 'Reload Ruby library files from specified paths',
    'log'        => 'Display framework.log paged to the end if possible',
    'time'       => 'Time how long it takes to run a particular command'
  }
  if framework.features.enabled?(Msf::FeatureManager::SERVICEMANAGER_COMMAND)
    commands['_servicemanager'] = 'Interact with the Rex::ServiceManager'
  end
  commands
end

#local_editorObject



47
48
49
50
51
52
53
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 47

def local_editor
  framework.datastore['LocalEditor'] ||
  Rex::Compat.getenv('VISUAL')       ||
  Rex::Compat.getenv('EDITOR')       ||
  Msf::Util::Helper.which('vim')     ||
  Msf::Util::Helper.which('vi')
end

#local_pagerObject



55
56
57
58
59
60
61
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 55

def local_pager
  framework.datastore['LocalPager'] ||
  Rex::Compat.getenv('PAGER')       ||
  Rex::Compat.getenv('MANPAGER')    ||
  Msf::Util::Helper.which('less')   ||
  Msf::Util::Helper.which('more')
end

#nameObject



28
29
30
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 28

def name
  'Developer'
end

#reload_changed_filesObject



82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 82

def reload_changed_files
  files, is_success = modified_files

  unless is_success
    print_error("Git is not available")
    return
  end

  @modified_files |= files
  @modified_files.each do |file|
    next if file.end_with?('_spec.rb') || file.end_with?("spec_helper.rb")
    f = File.join(Msf::Config.install_root, file)
    reload_file(f, print_errors: false)
  end
end

#reload_file(path, print_errors: true) ⇒ Object

XXX: This will try to reload any .rb and break on modules



64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
# File 'lib/msf/ui/console/command_dispatcher/developer.rb', line 64

def reload_file(path, print_errors: true)
  full_path = File.expand_path(path)

  unless File.exist?(full_path) && full_path.end_with?('.rb')
    print_error("#{full_path} must exist and be a .rb file") if print_errors
    return
  end

  # The file must exist to reach this, so we try our best here
  if full_path.start_with?(Msf::Config.module_directory, Msf::Config.user_module_directory)
    print_error('Reloading Metasploit modules is not supported (try "reload")') if print_errors
    return
  end

  print_status("Reloading #{full_path}")
  load full_path
end