Class: Msf::Aggregator::Http::Responder

Inherits:
Object
  • Object
show all
Defined in:
lib/msf/aggregator/http/responder.rb

Direct Known Subclasses

SslResponder

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uri) ⇒ Responder

Returns a new instance of Responder.



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# File 'lib/msf/aggregator/http/responder.rb', line 13

def initialize(uri)
  @uri = uri
  @queue = Queue.new
  @thread = Thread.new { process_requests }
  @time = Time.now
  @router = Router.instance
end

Instance Attribute Details

#log_messages ⇒ Object

Returns the value of attribute log_messages.



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# File 'lib/msf/aggregator/http/responder.rb', line 10

def log_messages
  @log_messages
end

#queue ⇒ Object

Returns the value of attribute queue.



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# File 'lib/msf/aggregator/http/responder.rb', line 8

def queue
  @queue
end

#time ⇒ Object

Returns the value of attribute time.



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# File 'lib/msf/aggregator/http/responder.rb', line 9

def time
  @time
end

#uri ⇒ Object (readonly)

Returns the value of attribute uri.



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# File 'lib/msf/aggregator/http/responder.rb', line 11

def uri
  @uri
end

Class Method Details

.get_data(connection, guaranteed_length) ⇒ Object 



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# File 'lib/msf/aggregator/http/responder.rb', line 105

def self.get_data(connection, guaranteed_length)
  checked_first = has_length = guaranteed_length
  content_length = 0
  request_lines = []

  while (input = connection.gets)
    request_lines << input
    # break for body read
    break if (input.inspect.gsub /^"|"$/, '').eql? '\r\n'

    if !checked_first && !has_length
      has_length = input.include?('POST')
      checked_first = true
    end

    if has_length && input.include?('Content-Length')
      content_length = input[(input.index(':') + 1)..input.length].to_i
    end

  end
  body = ''
  if has_length
    while body.length < content_length
      body += connection.read(content_length - body.length)
    end
  end
  Request.new request_lines, body, connection
end

Instance Method Details

#close_connection(connection) ⇒ Object 



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# File 'lib/msf/aggregator/http/responder.rb', line 138

def close_connection(connection)
  connection.close
end

#get_connection(host, port) ⇒ Object 



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# File 'lib/msf/aggregator/http/responder.rb', line 134

def get_connection(host, port)
  TCPSocket.new host, port
end

#process_requests ⇒ Object 



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# File 'lib/msf/aggregator/http/responder.rb', line 21

def process_requests

  while true do
    begin
      request_task = @queue.pop
      connection = request_task.socket
      request_task.headers

      # peer_addr = connection.io.peeraddr[3]

      host, port = @router.get_forward(@uri)
      if host.nil?
        # when no forward found park the connection for now
        # in the future this may get smarter and return a 404 or something
        send_parked_response(connection)
        next
      end

      client = nil

      begin
        client = get_connection(host, port)
      rescue StandardError => e
        log 'error on console connect ' + e.to_s
        send_parked_response(connection)
        next
      end

      log 'connected to console'

      request_task.headers.each do |line|
        client.write line
      end
      unless request_task.body.nil?
        client.write request_task.body
      end
      client.flush
      # log "From victim: \n" + request_lines.join()

      begin
        response = ''
        request_obj = Responder.get_data(client, true)
        request_obj.headers.each do |line|
          connection.write line
          response += line
        end
        unless request_obj.body.nil?
          connection.write request_obj.body
        end
        connection.flush
          # log "From console: \n" + response
      rescue
        log $!
      end
      close_connection(client)
      close_connection(connection)
    rescue Exception => e
      log "an error occurred processing request from #{@uri}"
    end
  end

end

#stop_processing ⇒ Object 



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# File 'lib/msf/aggregator/http/responder.rb', line 84

def stop_processing
  @thread.exit
end