zammad/lib/sessions/event/chat_status_customer.rb

class Sessions::Event::ChatStatusCustomer < Sessions::Event::ChatBase

  def run
    return super if super
    return if !check_chat_exists
    return if !check_chat_block_by_ip
    return if !check_chat_block_by_country

    # check if it's a chat sessin reconnect
    session_id = nil
    if @payload['data']['session_id']
      session_id = @payload['data']['session_id']

      # update recipients of existing sessions
      chat_session = Chat::Session.find_by(session_id: session_id)
      if chat_session
        chat_session.add_recipient(@client_id, true)

        # sent url update to agent
        if @payload['data']['url']
          message = {
            event: 'chat_session_notice',
            data:  {
              session_id: chat_session.session_id,
              message:    @payload['data']['url'],
            },
          }
          chat_session.send_to_recipients(message, @client_id)
        end
      end
    end

    {
      event: 'chat_status_customer',
      data:  current_chat.customer_state(session_id),
    }
  end

  def check_chat_block_by_ip
    chat = current_chat
    return true if !chat.blocked_ip?(@remote_ip)

    error = {
      event: 'chat_error',
      data:  {
        state: 'chat_unavailable',
      },
    }
    Sessions.send(@client_id, error)
    false
  end

  def check_chat_block_by_country
    chat = current_chat
    return true if !chat.blocked_country?(@remote_ip)

    error = {
      event: 'chat_error',
      data:  {
        state: 'chat_unavailable',
      },
    }
    Sessions.send(@client_id, error)
    false
  end

end