Method: Smpp::Base#process_pdu

Defined in:
lib/smpp/base.rb

#process_pdu(pdu) ⇒ Object

process common PDUs returns true if no further processing necessary



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# File 'lib/smpp/base.rb', line 137

def process_pdu(pdu)      
  case pdu
  when Pdu::EnquireLinkResponse
    # nop
  when Pdu::EnquireLink
    write_pdu(Pdu::EnquireLinkResponse.new(pdu.sequence_number))
  when Pdu::Unbind
    @state = :unbound
    write_pdu(Pdu::UnbindResponse.new(pdu.sequence_number, Pdu::Base::ESME_ROK))
    close_connection
  when Pdu::UnbindResponse      
    logger.info "Unbound OK. Closing connection."
    close_connection
  when Pdu::GenericNack
    logger.warn "Received NACK! (error code #{pdu.error_code})."
    # we don't take this lightly: close the connection
    close_connection
  when Pdu::DeliverSm
    logger.debug "ESM CLASS #{pdu.esm_class}"
    if pdu.esm_class != 4
      # MO message
      begin
        if @delegate.respond_to?(:mo_received)
          @delegate.mo_received(self, pdu)
        end
        write_pdu(Pdu::DeliverSmResponse.new(pdu.sequence_number))
      rescue => e
        logger.warn "Send Receiver Temporary App Error due to #{e.inspect} raised in delegate"
        write_pdu(Pdu::DeliverSmResponse.new(pdu.sequence_number, Pdu::Base::ESME_RX_T_APPN))
      end
    else
      # Delivery report
      if @delegate.respond_to?(:delivery_report_received)
        @delegate.delivery_report_received(self, pdu)
      end
    end     
  when Pdu::BindTransceiverResponse
    case pdu.command_status
    when Pdu::Base::ESME_ROK
      logger.debug "Bound OK."
      @state = :bound
      if @delegate.respond_to?(:bound)
        @delegate.bound(self)
      end
    when Pdu::Base::ESME_RINVPASWD
      logger.warn "Invalid password."
      # scheduele the connection to close, which eventually will cause the unbound() delegate 
      # method to be invoked.
      close_connection
    when Pdu::Base::ESME_RINVSYSID
      logger.warn "Invalid system id."
      close_connection
    else
      logger.warn "Unexpected BindTransceiverResponse. Command status: #{pdu.command_status}"
      close_connection
    end
  when Pdu::SubmitSmResponse
    mt_message_id = @ack_ids.delete(pdu.sequence_number)
    if !mt_message_id
      raise "Got SubmitSmResponse for unknown sequence_number: #{pdu.sequence_number}"
    end
    if pdu.command_status != Pdu::Base::ESME_ROK
      logger.error "Error status in SubmitSmResponse: #{pdu.command_status}"
      if @delegate.respond_to?(:message_rejected)
        @delegate.message_rejected(self, mt_message_id, pdu)
      end
    else
      logger.info "Got OK SubmitSmResponse (#{pdu.message_id} -> #{mt_message_id})"
      if @delegate.respond_to?(:message_accepted)
        @delegate.message_accepted(self, mt_message_id, pdu)
      end        
    end
    # Now we got the SMSC message id; create pending delivery report.
    @pdr_storage[pdu.message_id] = mt_message_id            
  when Pdu::SubmitMultiResponse
    mt_message_id = @ack_ids[pdu.sequence_number]
    if !mt_message_id
      raise "Got SubmitMultiResponse for unknown sequence_number: #{pdu.sequence_number}"
    end
    if pdu.command_status != Pdu::Base::ESME_ROK
      logger.error "Error status in SubmitMultiResponse: #{pdu.command_status}"
      if @delegate.respond_to?(:message_rejected)
        @delegate.message_rejected(self, mt_message_id, pdu)
      end
    else
      logger.info "Got OK SubmitMultiResponse (#{pdu.message_id} -> #{mt_message_id})"
      if @delegate.respond_to?(:message_accepted)
        @delegate.message_accepted(self, mt_message_id, pdu)
      end
    end
  when Pdu::BindReceiverResponse
    case pdu.command_status
    when Pdu::Base::ESME_ROK
      logger.debug "Bound OK."
      @state = :bound
      if @delegate.respond_to?(:bound)
        @delegate.bound(self)
      end
    when Pdu::Base::ESME_RINVPASWD
      logger.warn "Invalid password."
      # scheduele the connection to close, which eventually will cause the unbound() delegate 
      # method to be invoked.
      close_connection
    when Pdu::Base::ESME_RINVSYSID
      logger.warn "Invalid system id."
      close_connection
    else
      logger.warn "Unexpected BindReceiverResponse. Command status: #{pdu.command_status}"
      close_connection
    end
  else
    logger.warn "(#{self.class.name}) Received unexpected PDU: #{pdu.to_human}."
    close_connection
  end
end