hammackj/risu

# Copyright (c) 2010-2020 Jacob Hammack.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.


module Risu
    module Parsers
        module Nessus

            # A Object to represents the Nessus XML file in memory
            class NessusDocument
                attr_accessor :new_tags

                # Creates a instance of the NessusDocument class
                def initialize document
                    @document = document
                    @new_tags = Array.new
                end

                # Checks the validness of a NessusDocument
                #
                # @return [Boolean] True if valid, False if invalid
                def valid?
                    parser = nil

                    if File.exist?(@document)
                        parser = LibXML::XML::Parser.file @document
                    elsif @document.class == "String"
                        parser = LibXML::XML::Parser.string @document
                    else
                        return false
                    end

                    doc = parser.parse

                    if doc.root.name == nil
                        return false
                    end

                    if doc.root.name == "NessusClientData_v2" #.nessus v2
                        return true
                    elsif doc.root.name == "NessusClientData" #.nessus v1
                        return false
                    else
                        return false
                    end
                end

                # Invokes the SAX parser on the XML document
                def parse
                    @parser = LibXML::XML::SaxParser.file @document
                    @parser.callbacks = NessusSaxListener.new
                    @parser.parse

                    #require 'pry'
                    #binding.pry
                    @new_tags == @parser.callbacks.new_tags
                end

                # Fixes the ip field if nil and replaces it with the name if its an ip
                def fix_ips
                    @hosts = Host.all

                    @hosts.each do |host|
                        if host.ip == nil
                            begin
                                ip = IPAddr.new host.name
                                host.ip = ip.to_string
                                host.save
                            rescue ArgumentError
                                next
                            end
                        end
                    end
                end
            end
        end
    end
end