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module ActionCable
module Connection
module InternalChannel
extend ActiveSupport::Concern
def subscribe_to_internal_channel
if connection_identifier.present?
callback = -> (message) { process_internal_message(message) }
@_internal_redis_subscriptions ||= []
@_internal_redis_subscriptions << [ internal_redis_channel, callback ]
pubsub.subscribe(internal_redis_channel, &callback)
logger.info "Registered connection (#{connection_identifier})"
end
end
def unsubscribe_from_internal_channel
if @_internal_redis_subscriptions.present?
@_internal_redis_subscriptions.each { |channel, callback| pubsub.unsubscribe_proc(channel, callback) }
end
end
private
def process_internal_message(message)
message = ActiveSupport::JSON.decode(message)
case message['type']
when 'disconnect'
logger.info "Removing connection (#{connection_identifier})"
@websocket.close
end
rescue Exception => e
logger.error "There was an exception - #{e.class}(#{e.message})"
logger.error e.backtrace.join("\n")
handle_exception
end
end
end
end
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