Skype API example in Ruby

ruby_skype_api_example.rb

require 'dbus'

MYNAME  = 'com.example.skype_api_client'

class SkypeAPI
  def initialize(name = MYNAME)
    bus = DBus.session_bus
    service = bus.service("com.Skype.API")
    objs = service.object("/com/Skype")
    objs.introspect
    @api = objs["com.Skype.API"]

    invoke("NAME #{name}")
    invoke("PROTOCOL 5")
  end

  def run
    loop = DBus::Main.new
    loop << DBus::SessionBus.instance
    loop.run
  end

  def invoke(cmd)
    r = @api.Invoke(cmd)
    r[0]
  end
end

class SkypeClient < DBus::Object
  dbus_interface "com.Skype.API.Client" do
    dbus_method :Notify, "in msg:s" do |msg|
      proc_message(msg)
    end
  end

  def initialize(name = MYNAME)
    super("/com/Skype/Client")

    bus = DBus.session_bus
    service = bus.request_service(name)
    service.export(self)
    @api = SkypeAPI.new
  end

  def run
    @api.run
  end

  private
  def proc_message(msg)
    a = msg.split(" ")
    case a[0]
    when "CHATMESSAGE"
      proc_chat_message(msg)
    end
  end

  def proc_chat_message(msg)
    a = msg.split(" ")
    if a[2] == "STATUS" && a[3] == "RECEIVED"
      skypemsg = SkypeMessage.new(@api, a[1])

      # XXX dispatch skyemsg to somewhere you want

    end
  end
end

class SkypeMessage
  def initialize(api, msgid)
    @api = api
    @msgid = msgid
  end

  def body
    get_cmsg("BODY")
  end

  def from_handle
    get_cmsg("FROM_HANDLE")
  end

  def from_dispname
    get_cmsg("FROM_DISPNAME")
  end

  def chatname
    get_cmsg("CHATNAME")
  end

  private
  def get_cmsg(prop)
    cmd = "CHATMESSAGE #{@msgid} #{prop}"
    r = @api.invoke("GET #{cmd}")
    r.sub("#{cmd} ", "")
  end
end