Forward input as raw_event to runner

* Also, rename #send to #send_data in order to prevent debugging issues in RubyMine

app/controllers/submissions_controller.rb

@@ -95,21 +95,23 @@ class SubmissionsController < ApplicationController
         runner_socket&.close(:terminated_by_client)
       end
 
-      client_socket.onmessage do |event|
+      client_socket.onmessage do |raw_event|
-        event = JSON.parse(event).deep_symbolize_keys
+        event = JSON.parse(raw_event).deep_symbolize_keys
         case event[:cmd].to_sym
           when :client_kill
             close_client_connection(client_socket)
             Rails.logger.debug('Client exited container.')
-          when :result
+          when :result, :canvasevent, :exception
             # The client cannot send something before the runner connection is established.
             if runner_socket.present?
-              runner_socket.send event[:data]
+              runner_socket.send_data raw_event
             else
               Rails.logger.info("Could not forward data from client because runner connection was not established yet: #{event[:data].inspect}")
             end
           else
             Rails.logger.info("Unknown command from client: #{event[:cmd]}")
+            Sentry.set_extras(event: event)
+            Sentry.capture_message("Unknown command from client: #{event[:cmd]}")
         end
       rescue JSON::ParserError => e
         Rails.logger.info("Data received from client is not valid json: #{data.inspect}")

lib/runner/connection.rb

@@ -43,7 +43,7 @@ class Runner::Connection
   end
 
   # Send arbitrary data in the WebSocket connection
-  def send(raw_data)
+  def send_data(raw_data)
     encoded_message = encode(raw_data)
     Rails.logger.debug { "#{Time.zone.now.getutc}: Sending to #{@socket.url}: #{encoded_message.inspect}" }
     @socket.send(encoded_message)

lib/runner/strategy/docker_container_pool.rb

@@ -64,7 +64,7 @@ class Runner::Strategy::DockerContainerPool < Runner::Strategy
     socket = Connection.new(websocket_url, self, event_loop)
     begin
       Timeout.timeout(@execution_environment.permitted_execution_time) do
-        socket.send(command)
+        socket.send_data(command)
         yield(socket)
         event_loop.wait
         event_loop.stop