Class: Wafoo::Run

Inherits:
Object
  • Object
show all
Includes:
Helper
Defined in:
lib/wafoo/run.rb

Instance Method Summary collapse

Methods included from Helper

#added_print, #info_print, #output_table, #removed_print, #split_cidr

Constructor Details

#initialize(options = nil) ⇒ Run

Returns a new instance of Run.



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# File 'lib/wafoo/run.rb', line 7

def initialize(options = nil)
  @waf_regional = Aws::WAFRegional::Client.new
  @waf = Aws::WAF::Client.new
  @regional = options[:regional] unless options.nil?
end

Instance Method Details

#apply_ipsets(ipsets, ip_set_id) ⇒ Object 



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# File 'lib/wafoo/run.rb', line 68

def apply_ipsets(ipsets, ip_set_id)
  waf = @regional ? @waf_regional : @waf
  puts 'Applying IP List...'
  change_token = waf.get_change_token.change_token
  begin
    waf.update_ip_set(
      ip_set_id: ip_set_id,
      change_token: change_token,
      updates: ipsets
    )
    puts 'Apply Finished.'
    exit 0
  rescue => ex
    puts error_print(ex.message)
    exit 1
  end
end

#export_ipsets(ip_set_id) ⇒ Object 



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# File 'lib/wafoo/run.rb', line 58

def export_ipsets(ip_set_id)
  ipsets = read_ipsets_from_api(ip_set_id)
  puts 'Exporting IP List...'
  ipsets.sort.each { |ipset| puts info_print(ipset) }
  File.open(ip_set_id, 'w') do |f|
    ipsets.sort.each { |ipset| f.puts(ipset) }
  end
  puts 'Exported to ' + added_print(ip_set_id)
end

#generate_delete_hash(ipset) ⇒ Object 



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# File 'lib/wafoo/run.rb', line 86

def generate_delete_hash(ipset)
  ipset.slice!(0)
  # p ipset
  h = {
    action: 'DELETE',
    ip_set_descriptor: {
      type: 'IPV4',
      value: ipset
    }
  }

  # unless %w(8 16 24 33).include?(ipset.split('/').last)
  #   ips = split_cidr(ipset)
  #   ipsets_array = []
  #   ips.each do |ip|
  #     ipsets_array << {
  #                        action: 'DELETE',
  #                        ip_set_descriptor: {
  #                          type: 'IPV4',
  #                          value: ip + '/32'
  #                        }
  #                     }
  #   end
  #   return ipsets_array
  # end

  ipsets_hash = {
                   action: 'DELETE',
                   ip_set_descriptor: {
                     type: 'IPV4',
                     value: ipset
                   }
                }
  ipsets_hash
end

#generate_insert_hash(ipset) ⇒ Object 



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# File 'lib/wafoo/run.rb', line 122

def generate_insert_hash(ipset)
  ipset.slice!(0)
  # unless %w(8 16 24 33).include?(ipset.split('/').last)
  #   ips = split_cidr(ipset)
  #   ipsets_array = []
  #   ips.each do |ip|
  #     ipsets_array << {
  #                        action: 'INSERT',
  #                        ip_set_descriptor: {
  #                          type: 'IPV4',
  #                          value: ip + '/32'
  #                        }
  #                     }
  #   end
  #   return ipsets_array
  # end

  ipsets_hash = {
                   action: 'INSERT',
                   ip_set_descriptor: {
                     type: 'IPV4',
                     value: ipset
                   }
                }
  ipsets_hash
end

#list_ipsets ⇒ Object 



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# File 'lib/wafoo/run.rb', line 38

def list_ipsets
  ip_sets = []
  params = {}
  [ @waf_regional, @waf ].each do |w|
    loop do
      res = w.list_ip_sets(params)
      res.ip_sets.each do |set|
        ipset = []
        ipset << w.class.to_s.split('::')[1]
        ipset << set.ip_set_id
        ipset << set.name
        ip_sets << ipset
      end
      break if res.next_marker.nil?
      params[:next_marker] = res.next_marker
    end
  end
  output_table(ip_sets)
end

#read_ipsets_from_api(ip_set_id) ⇒ Object 



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# File 'lib/wafoo/run.rb', line 13

def read_ipsets_from_api(ip_set_id)
  waf = @regional ? @waf_regional : @waf
  resp = waf.get_ip_set({
    ip_set_id: ip_set_id
  })
  ipsets = []
  sorted_ipsets = resp.ip_set.ip_set_descriptors.sort {|a,b| a[:value] <=> b[:value]}
  sorted_ipsets.each do |ipset|
    ipsets << ipset.value
  end

  ipsets
end

#read_ipsets_from_file(ip_set_id) ⇒ Object 



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# File 'lib/wafoo/run.rb', line 27

def read_ipsets_from_file(ip_set_id)
  ipsets = []
  File.open(ip_set_id, 'r') do |file|
    file.read.split("\n").each do |ipset|
      ipsets << ipset
    end
  end

  ipsets.sort
end

#update_ipsets(ip_set_id, dry_run) ⇒ Object 



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# File 'lib/wafoo/run.rb', line 149

def update_ipsets(ip_set_id, dry_run)
  _old = read_ipsets_from_api(ip_set_id).join("\n")
  _new = read_ipsets_from_file(ip_set_id).join("\n")
  ipsets = []
  Diffy::Diff.new(_old, _new).each do |line|
    case line
      when /^\+/ then
        puts 'Add Line: ' + added_print(line.chomp)
        ipsets << generate_insert_hash(line.chomp)
      when /^-/ then
        puts 'Remove Line: ' + removed_print(line.chomp)
        ipsets << generate_delete_hash(line.chomp)
    end
  end

  if !dry_run and ipsets.length > 0 then
    apply_ipsets(ipsets.flatten, ip_set_id)
    export_ipsets(ip_set_id)
  elsif dry_run and ipsets.length > 0 then
    puts 'Above IP list will be changed.'
    exit 0
  else
    puts 'No IP list changed.'
    exit 0
  end
end