Class: Component::Firewall

Inherits:
Object
  • Object
show all
Defined in:
lib/component/firewall.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Firewall

Returns a new instance of Firewall.



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# File 'lib/component/firewall.rb', line 8

def initialize
  @rules = []
  @count = 0
end

Instance Attribute Details

#rules ⇒ Object (readonly)

Returns the value of attribute rules.



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# File 'lib/component/firewall.rb', line 6

def rules
  @rules
end

Class Method Details

.generate_xml(interfaces) ⇒ Object 



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# File 'lib/component/firewall.rb', line 38

def self.generate_xml interfaces
  return if Firewall.instance.rules.nil? or Firewall.instance.rules.empty?
  Nokogiri::XML::Builder.new(:encoding => 'UTF-8') do |xml|
    xml.EdgeGatewayServiceConfiguration('xmlns' => "http://www.vmware.com/vcloud/v1.5", 'xmlns:xsi' => "http://www.w3.org/2001/XMLSchema-instance", 'xsi:schemaLocation' => "http://www.vmware.com/vcloud/v1.5 http://vendor-api-url.net/v1.5/schema/master.xsd") {
      xml.FirewallService {
        xml.IsEnabled "true"
        xml.DefaultAction "drop"
        xml.LogDefaultAction "false"

        Firewall.instance.rules.each do |rule|
          xml.FirewallRule {
            xml.Id rule[:id]
            xml.IsEnabled rule[:enabled]
            xml.MatchOnTranslate "false"
            xml.Description rule[:description]
            xml.Policy "allow"

            xml.Protocols {
              rule[:protocols].each do |protocol|
                xml.send(protocol.to_s.capitalize, true)
              end
            }

            if rule[:protocols].first == :icmp
              xml.IcmpSubType "any"
            end

            xml.Port rule[:destination][:port] == "Any" ? "-1" : rule[:destination][:port]
            xml.DestinationPortRange rule[:destination][:port]
            xml.DestinationIp rule[:destination][:ip]
            xml.SourcePort rule[:source][:port] == "Any" ? "-1" : rule[:source][:port]
            xml.SourcePortRange rule[:source][:port]
            xml.SourceIp rule[:source][:ip]
            xml.EnableLogging "false"
          }
        end
      }
    }
  end
end

.instance ⇒ Object 



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# File 'lib/component/firewall.rb', line 34

def self.instance
  @firewall ||= Firewall.new
end

.reset ⇒ Object 



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# File 'lib/component/firewall.rb', line 30

def self.reset
  @firewall = nil
end

Instance Method Details

#destination(options) ⇒ Object 



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# File 'lib/component/firewall.rb', line 26

def destination(options)
  @current_rule[:destination] = { :port => options[:port], :ip => options[:ip] }
end

#rule(description, options = {}, &block) ⇒ Object 



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# File 'lib/component/firewall.rb', line 13

def rule(description, options = {}, &block)
  defaults = { :enabled => true, :protocols => [:tcp], :id => @count+=1, :description => description}
  @current_rule = defaults.merge(options)
  rules << @current_rule
  yield
ensure
  @current_rule = nil
end

#source(options) ⇒ Object 



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# File 'lib/component/firewall.rb', line 22

def source(options)
  @current_rule[:source] = { :port => options[:port] || "Any", :ip => options[:ip] }
end