Contents

module Suj
  module Pusher
    class ApnNotification
      include Suj::Pusher::Logger
      MAX_SIZE = 256

      class InvalidToken < StandardError; end
      class PayloadTooLarge < StandardError; end

      def initialize(options = {})
        @token = options[:token]
        @id  = options[:id]
        @ttl = options[:time_to_live] || 0
        @options = options
        raise InvalidToken if @token.nil? || (@token.length != 64)
        raise PayloadTooLarge if data.size > MAX_SIZE
      end

      def payload
        @payload ||= MultiJson.dump(@options[:data] || {})
      end

      def data
        @data ||= encode_data
      end

      def to_s
        data
      end

      private

      def get_expiry
        if @ttl.to_i == 0
          return 0
        else
          return Time.now.to_i + @ttl.to_i
        end
      end

      def encode_data
        items = [
          [1, 32,               @token ],                           # token
          [2, payload.bytesize, payload ],                          # payload
          [3, 4,                @id],                               # id identifier
          [4, 4,                get_expiry ],                       # expiration date
          [5, 1,                10 ]                                # high priority
        ]

        info("PAYLOAD: #{items}")

        frame_data = 
          items[0].pack("CnH*") +
          items[1].pack("CnA*") +
          items[2].pack("CnN") +
          items[3].pack("CnN")  +
          items[4].pack("CnC")

        [2,frame_data.bytesize,frame_data].pack("CNA*")
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
suj-pusher-0.2.5	lib/suj/pusher/apn_notification.rb