Class: Ec2UltraDNSUpdater::UltraDNS

Inherits:
Object
  • Object
show all
Includes:
Preconditions
Defined in:
lib/ec2_ultradns_updater/ultradns.rb

Defined Under Namespace

Modules: TYPE

Constant Summary collapse

ULTRADNS_WSDL_URL = 
"http://ultra-api.ultradns.com:8008/UltraDNS_WS/v01?wsdl"
DEFAULT_TTL = 
60

Instance Method Summary collapse

Methods included from Preconditions

#precondition, #str_not_empty

Constructor Details

#initialize(opts = {}) ⇒ UltraDNS

Returns a new instance of UltraDNS.



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 29

def initialize(opts = {})
  @logger = opts[:logger] || Logger.new(STDOUT)
  
  Savon.configure do |config|
    config.logger = @logger
    config.raise_errors = false
  end
  # also configure HTTPI
  HTTPI.logger = @logger

  @username = opts[:username]
  @password = opts[:password]
  @zone = fix_zone_name(opts[:zone] || '')
  
  precondition.str_not_empty(@username)
  precondition.str_not_empty(@password)
  precondition.str_not_empty(@zone)
end

Instance Method Details

#client ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 198

def client
  soap_username = @username
  soap_password = @password
  
  @client ||= Savon::Client.new do
    wsdl.document = ULTRADNS_WSDL_URL
    wsse.credentials soap_username, soap_password
  end

  @client
end

#create_or_update_a(node_label, to_ip) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 61

def create_or_update_a(node_label, to_ip)
  create_or_update_info1(TYPE::A, node_label, to_ip)
end

#create_or_update_cname(cname, to_hostname) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 53

def create_or_update_cname(cname, to_hostname)
  create_or_update_info1(TYPE::CNAME, cname, fix_zone_name(to_hostname))
end

#create_or_update_info1(type, label, to_value) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 109

def create_or_update_info1(type, label, to_value)
  precondition.str_not_empty(label)
  precondition.str_not_empty(to_value)
  
  zone = @zone
  fixed_label = fix_zone_name(label)
  
  guid = get_guid_by_label_and_type(label, type) || ''

  change_method = :create_resource_record
  record_opts = {'Type' => type, 'DName' => fixed_label, 'TTL' => DEFAULT_TTL}

  if guid != ''
    @logger.info "Updating Record Mapping: #{fixed_label} => #{to_value}"
    change_method = :update_resource_record # update it
    record_opts['Guid'] = guid;
  else
    # make sure there isn't another record at this label of a different type
    delete_record_by_label_not_matching_type(label, type)
    @logger.info "Creating Record Mapping: #{fixed_label} => #{to_value}"
    record_opts['ZoneName'] = zone;
  end

  begin
    resp = client.request(change_method) {
      ns = ''
      soap.namespaces.each do |k, v|
        ns = k.gsub(/xmlns:/,'') if v =~ /schema\.ultraservice\.neustar\.com/
      end
      soap.body do |xml|
        xml.transactionID()
        xml.resourceRecord(record_opts) {
          xml.tag!("#{ns}:InfoValues", {"Info1Value" => to_value})
        }
      end
    }
  
    log_error(resp)
    resp.success?
  rescue
    false
  end
end

#delete_record_by_guid(guid) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 72

def delete_record_by_guid(guid)
  resp = client.request(:delete_resource_record) {
    soap.body do |xml|
      xml.transactionID()
      xml.guid(guid)
    end
  }
  log_error(resp)
  resp.success?
end

#delete_record_by_label(label) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 88

def delete_record_by_label(label)
  recs = get_records_by_label(label)
  unless recs.nil?
    guid = (recs[:resource_record][:@guid] rescue '') || ''
    delete_record_by_guid(guid) unless guid == ''
  end
end

#delete_record_by_label_not_matching_type(label, type) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 96

def delete_record_by_label_not_matching_type(label, type)
  recs = get_records_by_label(label)
  unless recs.nil?
    guid = (recs[:resource_record][:@guid] rescue '') || ''
    rec_type = (recs[:resource_record][:@type] rescue '') || ''
    if guid != '' && rec_type != type
      delete_record_by_guid(guid)
    end
  end
end

#fix_zone_name(name) ⇒ Object

..Must end with a '.'



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 215

def fix_zone_name(name)
  (name != nil && name.strip != '' && name[-1] != '.') ? "#{name}." : name
end

#get_a_guid(node_label) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 57

def get_a_guid(node_label)
  get_guid_by_label_and_type(node_label, TYPE::A)
end

#get_cname_guid(cname) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 49

def get_cname_guid(cname)
  get_guid_by_label_and_type(cname, TYPE::CNAME)
end

#get_guid_by_label_and_type(label, type) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 153

def get_guid_by_label_and_type(label, type)
  zone = @zone
  fixed_label = fix_zone_name(label)

  guids_resp = client.request(:get_resource_record_guid_list) {
    soap.body do |xml|
      xml.resourceRecord({
        "ZoneName" => zone, 'Type' => type, 'DName' => fixed_label
      }) 
    end
  }

  log_error(guids_resp)
  
  begin
    guid = guids_resp[:get_resource_record_guid_list_response][:resource_record_guid_list][:guid]
    @logger.debug("guid found: #{guid}")
  rescue
    @logger.debug("guid not found")
  end
  guid
end

#get_record_by_label_and_type(label, type) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 177

def get_record_by_label_and_type(label, type)
  zone = @zone
  fixed_label = fix_zone_name(label)
  
  begin
    records_resp = client.request('getResourceRecordsOfDNameByType'.snakecase.to_sym) {
      soap.body do |xml|
        xml.zoneName(zone)
        xml.rrType(type)
        xml.hostName(fixed_label)
      end
    }
    log_error(records_resp)  
  
    records_resp.to_hash[:get_resource_records_of_d_name_by_type_response][:resource_record_list]
  rescue
    @logger.debug("Resource Record list is empty")
  end
end

#get_records_by_label(label) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 84

def get_records_by_label(label)
  get_record_by_label_and_type(label, TYPE::ALL)
end

#log_error(response) ⇒ Object 



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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 210

def log_error(response)
  @logger.error {response.to_xml} unless response.success?
end

#network_status? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ec2_ultradns_updater/ultradns.rb', line 65

def network_status?    
  resp = client.request(:get_neustar_network_status) 
  @logger.debug(resp)
  log_error(resp)
  resp.success?
end