zammad/lib/sessions/event/maintenance.rb

# Copyright (C) 2012-2022 Zammad Foundation, https://zammad-foundation.org/

class Sessions::Event::Maintenance < Sessions::Event::Base
  database_connection_required

=begin

Event module to broadcast maintenance messages to all client connections.

To execute this manually, just paste the following into the browser console

  App.WebSocket.send({event:'maintenance', data: {some: 'key'}})

=end

  def run

    # check if sender is admin
    return if !permission_check('admin.maintenance', 'maintenance')

    Sessions.broadcast(@payload, 'public', @session['id'])

    # Maintenance mode start/stop messages are not needed for GraphQL, as clients
    #   watch on changes of the config settings.
    data = @payload['data']
    return if data['type'] != 'message'

    Gql::ZammadSchema.subscriptions.trigger(
      Gql::Subscriptions::PushMessages.field_name,
      {},
      {
        title: data['head'],
        text:  data['message'],
      }
    )
    false
  end

end