152 lines
2.1 KiB
Ruby
152 lines
2.1 KiB
Ruby
module Rex
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module IO
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require 'rex/ui/text/output'
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require 'rex/ui/text/output/buffer'
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require 'rex/ui/text/input/buffer'
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class BidirectionalPipe < Rex::Ui::Text::Input
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def initialize
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@subscribers_out = {}
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@subscribers_ref = {}
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@subscribers_idx = 0
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@pipe_input = Rex::Ui::Text::Input::Buffer.new
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# We are the shell, the input, and the output
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self.output = self
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self.input = self
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end
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def pipe_input
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@pipe_input
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end
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def close
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@pipe_input.close
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end
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def has_subscriber?(id)
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@subscribers_out.has_key?(id)
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end
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def create_subscriber(id=nil)
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id ||= (@subscribers_idx += 1).to_s
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@subscribers_out[id] = Rex::Ui::Text::Output::Buffer.new
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return id
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end
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def create_subscriber_proc(id=nil, &block)
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id = create_subscriber(id)
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@subscribers_ref[id] = block
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end
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def remove_subscriber(id)
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@subscribers_out.delete(id)
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@subscribers_ref.delete(id)
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end
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def write_input(buf)
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@pipe_input.put(buf)
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end
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def read_subscriber(id)
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output = @subscribers_out[id]
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return '' if output.nil?
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buf = output.buf
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output.reset
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buf
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end
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def print(msg='')
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@subscribers_out.each_pair { |id, buf|
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begin
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@subscribers_ref[id] ? @subscribers_ref[id].call(msg) : buf.print(msg)
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rescue ::Exception => e
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# $stderr.puts "Error handling subscriber #{id}: #{e} #{e.backtrace.inspect}"
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raise e
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end
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}
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msg
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end
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def print_error(msg='')
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print_line('[-] ' + msg)
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end
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def print_line(msg='')
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print(msg + "\n")
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end
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def print_good(msg='')
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print_line('[+] ' + msg)
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end
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def flush
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end
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def print_status(msg='')
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print_line('[*] ' + msg)
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end
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#
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# Wrappers for the pipe_input methods
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#
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def close
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@pipe_input.close
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end
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def sysread(len = 1)
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@pipe_input.sysread(len)
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end
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def put(msg)
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@pipe_input.put(msg)
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end
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def gets
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@pipe_input.gets
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end
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def eof?
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@pipe_input.eof?
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end
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def fd
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@pipe_input.fd
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end
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#
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# Wrappers for shell methods
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#
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attr_accessor :output, :prompt, :input
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def intrinsic_shell?
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true
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end
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def supports_readline
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false
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end
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def supports_color?
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false
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end
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def pgets
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gets
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end
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protected
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end
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end
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end |