Class: Rbkb::Cli::Blit

Inherits:
Executable show all
Defined in:
lib/rbkb/cli/blit.rb

Overview

Copyright 2009 emonti at matasano.com See README.rdoc for license information

blit is for use with any of the "plug" tools such as telson, feed, blitplug. It is used to send data over a socket via their OOB blit listener.

Instance Attribute Summary collapse

Attributes inherited from Executable

#argv, #exit_status, #oparse, #opts, #stderr, #stdin, #stdout

Instance Method Summary collapse

Methods inherited from Executable

#bail, #bail_args, #exit, run

Constructor Details

#initialize(*args) ⇒ Blit

Returns a new instance of Blit.



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# File 'lib/rbkb/cli/blit.rb', line 12

def initialize(*args)
  super(*args)
  {
    b_addr: Plug::Blit::DEFAULT_IPADDR,
    b_port: Plug::Blit::DEFAULT_PORT,
    bp_proto: :TCP,
    b_peeridx: 0
  }.each { |k, v| @opts[k] ||= v }
end

Instance Attribute Details

#blit_msg ⇒ Object

Returns the value of attribute blit_msg.



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# File 'lib/rbkb/cli/blit.rb', line 10

def blit_msg
  @blit_msg
end

Instance Method Details

#go(*args) ⇒ Object 



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# File 'lib/rbkb/cli/blit.rb', line 74

def go(*args)
  super(*args)

  begin
    Plug::Blit.blit_init(
      addr: @opts[:b_addr],
      port: @opts[:b_port],
      protocol: @opts[:b_proto]
    )

    Plug::Blit.blit_raw(@blit_msg)
  rescue StandardError
    bail($!)
  end

  self.exit(0)
end

#make_parser ⇒ Object 



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# File 'lib/rbkb/cli/blit.rb', line 22

def make_parser
  super()
  add_std_file_opt(:indat)
  arg = @oparse

  arg.banner += ' <data | blank for stdin>'

  arg.on('-t', '--trans-protocol=PROTO',
         'Blit transport protocol TCP/UDP') do |t|
    @opts[:b_proto] = t.upcase.to_sym
  end

  arg.on('-S', '--starttls', 'Start TLS handshake for the peer index (-i)') do |_s|
    @blit_msg = Plug::Blit.make_starttls(@opts[:b_peeridx])
  end

  arg.on('-b', '--blitsrv=ADDR:PORT',
         'Where to send blit messages') do |b|
    unless (m = /^(?:([\w.]+):)?(\d+)$/.match(b))
      bail 'invalid blit address/port'
    end
    @opts[:b_port] = m[2].to_i
    @opts[:b_port] = m[1] if m[1]
  end

  arg.on('-i', '--peer-index=IDX', Numeric,
         'Index for remote peer to receive') do |i|
    @opts[:b_peeridx] = i
  end

  arg.on('-l', '--list-peers', 'Lists the peer array for the target') do
    @blit_msg = Plug::Blit.make_list_peers
  end

  arg.on('-k', '--kill', 'Stops the remote event loop.') do
    @blit_msg = Plug::Blit.make_kill
  end

  arg
end

#parse(*args) ⇒ Object 



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# File 'lib/rbkb/cli/blit.rb', line 63

def parse(*args)
  super(*args)

  return if @blit_msg

  if @opts[:indat].nil?
    @opts[:indat] = @argv.length > 0 ? @argv.join(' ') : @stdin.read
  end
  @blit_msg = Plug::Blit.make_sendmsg(@opts[:b_peeridx], @opts[:indat])
end