lib/ronin/masscan.rb
# frozen_string_literal: true
#
# ronin-masscan - A Ruby library and CLI for working with masscan.
#
# Copyright (c) 2023-2024 Hal Brodigan (postmodern.mod3@gmail.com)
#
# ronin-masscan is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# ronin-masscan is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with ronin-masscan. If not, see <https://www.gnu.org/licenses/>.
#
require_relative 'masscan/exceptions'
require_relative 'masscan/importer'
require 'ronin/core/home'
require 'masscan/command'
require 'masscan/output_file'
require 'tempfile'
require 'fileutils'
module Ronin
#
# Top-level methods for `ronin-masscan`.
#
module Masscan
# The `~/.cache/ronin-masscan` cache directory.
#
# @api private
CACHE_DIR = Core::Home.cache_dir('ronin-masscan')
#
# Runs `masscan` and parses the saved output data.
#
# @param [Array<#to_s>] ips
# The IP addresses to scan.
#
# @param [Hash{Symbol => Object}] kwargs
# Additional keyword arguments for `masscan`.
#
# @return [::Masscan::OutputFile]
# If the `masscan` command was sucessful, the parsed masscan data will be
# returned.
#
# @raise [NotInstalled]
# The `masscan` command is not installed.
#
# @raise [ScanFailed]
# The `masscan` scan failed.
#
# @see https://rubydoc.info/gems/ruby-masscan/Masscan/OutputFile
#
# @api public
#
def self.scan(*ips,**kwargs,&block)
masscan = ::Masscan::Command.new(ips: ips, **kwargs,&block)
masscan.ips ||= ips
unless masscan.output_file
FileUtils.mkdir_p(CACHE_DIR)
tempfile = Tempfile.new(['masscan', '.json'], CACHE_DIR)
masscan.output_file = tempfile.path
end
status = masscan.run_command
case status
when nil
raise(NotInstalled,"the masscan command is not installed")
when false
raise(ScanFailed,"masscan scan failed: #{masscan.command_argv.join(' ')}")
else
parse(masscan.output_file)
end
end
#
# Parses a masscan output file.
#
# @param [String] path
# The path to the output file.
#
# @param [Hash{Symbol => Object}] kwargs
# Additional keyword arguments for `::Masscan::OutputFile.new`.
#
# @option kwargs [:binary, :list, :json, :ndjson] :format
# The format of the output file. If not specified, the format will be
# inferred from the path's file extension.
#
# @return [::Masscan::OutputFile]
# The parsed masscan output file.
#
# @raise [ArgumentError]
# The output format was not given and it cannot be inferred.
#
# @see https://rubydoc.info/gems/ruby-masscan/Masscan/OutputFile
#
# @api public
#
def self.parse(path,**kwargs)
::Masscan::OutputFile.new(path,**kwargs)
end
end
end