Class: Jabber::Version::Responder

Inherits:
Object
  • Object
show all
Defined in:
lib/gems/xmpp4r-0.4/lib/xmpp4r/version/helper/responder.rb

Overview

A class to answer version requests using IqQueryVersion

If you don’t need the flexibility of dynamic responses with the callback you can register with add_version_callback, take a look at SimpleResponder

Direct Known Subclasses

SimpleResponder

Instance Method Summary collapse

Constructor Details

#initialize(stream) ⇒ Responder

Initialize a new version responder

Registers it’s callback (prio = 180, ref = self)

stream
Stream

Where to register callback handlers



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# File 'lib/gems/xmpp4r-0.4/lib/xmpp4r/version/helper/responder.rb', line 22

def initialize(stream)
  @stream = stream
  @versioncbs = CallbackList.new

  stream.add_iq_callback(180, self) { |iq|
    iq_callback(iq)
  }
end

Instance Method Details

#add_version_callback(priority = 0, ref = nil, &block) ⇒ Object

Add a callback for Iq stanzas with IqQueryVersion

First argument passed to block is the Iq stanza, second argument is a block, which can be called with software name, version and os

Example:

my_version_helper.add_version_callback { |iq,block|
  block.call('Cool client', '6.0', 'Cool OS')
}



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# File 'lib/gems/xmpp4r-0.4/lib/xmpp4r/version/helper/responder.rb', line 42

def add_version_callback(priority = 0, ref = nil, &block)
  @versioncbs.add(priority, ref, block)
end

#iq_callback(iq) ⇒ Object

<iq/> callback handler to answer Software Version queries (registered by constructor and used internally only)

Used internally



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# File 'lib/gems/xmpp4r-0.4/lib/xmpp4r/version/helper/responder.rb', line 51

def iq_callback(iq)
  if iq.type == :get
    if iq.query.kind_of?(IqQueryVersion)
      replyblock = lambda { |name,version,os|
        answer = iq.answer
        answer.type = :result
        answer.query.set_iname(name).set_version(version).set_os(os)

        @stream.send(answer)
        true
      }
      @versioncbs.process(iq, replyblock)
    else
      false
    end
  else
    false
  end
end