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module ActionCable
module Connection
# Makes it possible for the RemoteConnection to disconnect a specific connection.
module InternalChannel
extend ActiveSupport::Concern
private
def internal_channel
"action_cable/#{connection_identifier}"
end
def subscribe_to_internal_channel
if connection_identifier.present?
callback = -> (message) { process_internal_message decode(message) }
@_internal_subscriptions ||= []
@_internal_subscriptions << [ internal_channel, callback ]
server.event_loop.post { pubsub.subscribe(internal_channel, callback) }
logger.info "Registered connection (#{connection_identifier})"
end
end
def unsubscribe_from_internal_channel
if @_internal_subscriptions.present?
@_internal_subscriptions.each { |channel, callback| server.event_loop.post { pubsub.unsubscribe(channel, callback) } }
end
end
def process_internal_message(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")
close
end
end
end
end
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