Class: Rex::Ui::Text::IrbShell

Inherits:
Object
  • Object
show all
Defined in:
lib/rex/ui/text/irb_shell.rb

Overview

This class wraps the creation of an IRB shell.

Constant Summary collapse

@@IrbInitialized = 
false

Instance Method Summary collapse

Constructor Details

#initialize(binding) ⇒ IrbShell

Returns a new instance of IrbShell.



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# File 'lib/rex/ui/text/irb_shell.rb', line 14

def initialize(binding)
	@binding_ctx = binding
end

Instance Method Details

#run ⇒ Object

Runs the IRB shell until completion. The binding parameter initializes IRB to the appropriate binding context.



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# File 'lib/rex/ui/text/irb_shell.rb', line 22

def run
	# Initialize IRB by setting up its internal configuration hash and
	# stuff.
	if (@@IrbInitialized == false)
		load('irb.rb')

		IRB.setup(nil)
		IRB.conf[:PROMPT_MODE]  = :SIMPLE

		@@IrbInitialized = true
	end

	# Create a new IRB instance
	irb = IRB::Irb.new(IRB::WorkSpace.new(@binding_ctx))

	# Set the primary irb context so that exit and other intrinsic
	# commands will work.
	IRB.conf[:MAIN_CONTEXT] = irb.context

	# Trap interrupt
	old_sigint = trap("SIGINT") do
		irb.signal_handle
	end

	# Keep processing input until the cows come home...
	catch(:IRB_EXIT) do
		irb.eval_input
	end

	trap("SIGINT", old_sigint)
end