diff options
Diffstat (limited to 'actioncable')
46 files changed, 3939 insertions, 534 deletions
diff --git a/actioncable/.babelrc b/actioncable/.babelrc new file mode 100644 index 0000000000..4f0c469c60 --- /dev/null +++ b/actioncable/.babelrc @@ -0,0 +1,8 @@ +{ + "presets": [ + ["env", { "modules": false, "loose": true } ] + ], + "plugins": [ + "external-helpers" + ] +} diff --git a/actioncable/.eslintrc b/actioncable/.eslintrc new file mode 100644 index 0000000000..3d9ecd4bce --- /dev/null +++ b/actioncable/.eslintrc @@ -0,0 +1,19 @@ +{ + "extends": "eslint:recommended", + "rules": { + "semi": ["error", "never"], + "quotes": ["error", "double"], + "no-unused-vars": ["error", { "vars": "all", "args": "none" }] + }, + "plugins": [ + "import" + ], + "env": { + "browser": true, + "es6": true + }, + "parserOptions": { + "ecmaVersion": 6, + "sourceType": "module" + } +} diff --git a/actioncable/.gitignore b/actioncable/.gitignore index f514e58c16..5d5c867f2d 100644 --- a/actioncable/.gitignore +++ b/actioncable/.gitignore @@ -1,2 +1,3 @@ +/app/javascript/action_cable/internal.js /lib/assets/compiled/ /tmp/ diff --git a/actioncable/CHANGELOG.md b/actioncable/CHANGELOG.md index 959943016f..17c7e9a3b7 100644 --- a/actioncable/CHANGELOG.md +++ b/actioncable/CHANGELOG.md @@ -1,3 +1,21 @@ +* Add `id` option to redis adapter so now you can distinguish + ActionCable's redis connections among others. Also, you can set + custom id in options. + + Before: + ``` + $ redis-cli client list + id=669 addr=127.0.0.1:46442 fd=8 name= age=18 ... + ``` + + After: + ``` + $ redis-cli client list + id=673 addr=127.0.0.1:46516 fd=8 name=ActionCable-PID-19413 age=2 ... + ``` + + *Ilia Kasianenko* + * Rails 6 requires Ruby 2.4.1 or newer. *Jeremy Daer* diff --git a/actioncable/README.md b/actioncable/README.md index a05ef1dd20..a2783d6f45 100644 --- a/actioncable/README.md +++ b/actioncable/README.md @@ -425,7 +425,7 @@ The above will start a cable server on port 28080. ### In app -If you are using a server that supports the [Rack socket hijacking API](http://www.rubydoc.info/github/rack/rack/file/SPEC#Hijacking), Action Cable can run alongside your Rails application. For example, to listen for WebSocket requests on `/websocket`, specify that path to `config.action_cable.mount_path`: +If you are using a server that supports the [Rack socket hijacking API](https://www.rubydoc.info/github/rack/rack/file/SPEC#label-Hijacking), Action Cable can run alongside your Rails application. For example, to listen for WebSocket requests on `/websocket`, specify that path to `config.action_cable.mount_path`: ```ruby # config/application.rb @@ -442,7 +442,7 @@ Beware that currently, the cable server will _not_ auto-reload any changes in th We'll get all this abstracted properly when the framework is integrated into Rails. -The WebSocket server doesn't have access to the session, but it has access to the cookies. This can be used when you need to handle authentication. You can see one way of doing that with Devise in this [article](http://www.rubytutorial.io/actioncable-devise-authentication). +The WebSocket server doesn't have access to the session, but it has access to the cookies. This can be used when you need to handle authentication. You can see one way of doing that with Devise in this [article](https://greg.molnar.io/blog/actioncable-devise-authentication/). ## Dependencies @@ -459,7 +459,7 @@ support, which means you can use all your regular Rails models with no problems as long as you haven't committed any thread-safety sins. The Action Cable server does _not_ need to be a multi-threaded application server. -This is because Action Cable uses the [Rack socket hijacking API](http://www.rubydoc.info/github/rack/rack/file/SPEC#Hijacking) +This is because Action Cable uses the [Rack socket hijacking API](https://www.rubydoc.info/github/rack/rack/file/SPEC#label-Hijacking) to take over control of connections from the application server. Action Cable then manages connections internally, in a multithreaded manner, regardless of whether the application server is multi-threaded or not. So Action Cable works diff --git a/actioncable/Rakefile b/actioncable/Rakefile index fb75d14363..52c86eb5d7 100644 --- a/actioncable/Rakefile +++ b/actioncable/Rakefile @@ -7,7 +7,7 @@ require "action_cable" task default: :test -task package: %w( assets:compile assets:verify ) +task :package Rake::TestTask.new do |t| t.libs << "test" @@ -35,42 +35,13 @@ namespace :test do end namespace :assets do - desc "Compile Action Cable assets" - task :compile do - require "blade" - require "sprockets" - require "sprockets/export" - Blade.build - end - - desc "Verify compiled Action Cable assets" - task :verify do - file = "lib/assets/compiled/action_cable.js" - pathname = Pathname.new("#{__dir__}/#{file}") - - print "[verify] #{file} exists " - if pathname.exist? - puts "[OK]" - else - $stderr.puts "[FAIL]" - fail - end + desc "Generate ActionCable::INTERNAL JS module" + task :codegen do + require "json" + require "action_cable" - print "[verify] #{file} is a UMD module " - if /module\.exports.*define\.amd/m.match?(pathname.read) - puts "[OK]" - else - $stderr.puts "[FAIL]" - fail - end - - print "[verify] #{__dir__} can be required as a module " - _, stderr, status = Open3.capture3("node", "--print", "window = {}; require('#{__dir__}');") - if status.success? - puts "[OK]" - else - $stderr.puts "[FAIL]\n#{stderr}" - fail + File.open(File.join(__dir__, "app/javascript/action_cable/internal.js").to_s, "w+") do |file| + file.write("export default #{JSON.generate(ActionCable::INTERNAL)}") end end end diff --git a/actioncable/actioncable.gemspec b/actioncable/actioncable.gemspec index d946d0797f..31c6fb41f2 100644 --- a/actioncable/actioncable.gemspec +++ b/actioncable/actioncable.gemspec @@ -17,7 +17,7 @@ Gem::Specification.new do |s| s.email = ["pratiknaik@gmail.com", "david@loudthinking.com"] s.homepage = "http://rubyonrails.org" - s.files = Dir["CHANGELOG.md", "MIT-LICENSE", "README.md", "lib/**/*"] + s.files = Dir["CHANGELOG.md", "MIT-LICENSE", "README.md", "lib/**/*", "app/assets/javascripts/action_cable.js"] s.require_path = "lib" s.metadata = { @@ -25,6 +25,9 @@ Gem::Specification.new do |s| "changelog_uri" => "https://github.com/rails/rails/blob/v#{version}/actioncable/CHANGELOG.md" } + # NOTE: Please read our dependency guidelines before updating versions: + # https://edgeguides.rubyonrails.org/security.html#dependency-management-and-cves + s.add_dependency "actionpack", version s.add_dependency "nio4r", "~> 2.0" diff --git a/actioncable/app/assets/javascripts/action_cable.coffee.erb b/actioncable/app/assets/javascripts/action_cable.coffee.erb deleted file mode 100644 index e0758dae72..0000000000 --- a/actioncable/app/assets/javascripts/action_cable.coffee.erb +++ /dev/null @@ -1,38 +0,0 @@ -#= export ActionCable -#= require_self -#= require ./action_cable/consumer - -@ActionCable = - INTERNAL: <%= ActionCable::INTERNAL.to_json %> - WebSocket: window.WebSocket - logger: window.console - - createConsumer: (url) -> - url ?= @getConfig("url") ? @INTERNAL.default_mount_path - new ActionCable.Consumer @createWebSocketURL(url) - - getConfig: (name) -> - element = document.head.querySelector("meta[name='action-cable-#{name}']") - element?.getAttribute("content") - - createWebSocketURL: (url) -> - if url and not /^wss?:/i.test(url) - a = document.createElement("a") - a.href = url - # Fix populating Location properties in IE. Otherwise, protocol will be blank. - a.href = a.href - a.protocol = a.protocol.replace("http", "ws") - a.href - else - url - - startDebugging: -> - @debugging = true - - stopDebugging: -> - @debugging = null - - log: (messages...) -> - if @debugging - messages.push(Date.now()) - @logger.log("[ActionCable]", messages...) diff --git a/actioncable/app/assets/javascripts/action_cable.js b/actioncable/app/assets/javascripts/action_cable.js new file mode 100644 index 0000000000..df60b1fc24 --- /dev/null +++ b/actioncable/app/assets/javascripts/action_cable.js @@ -0,0 +1,475 @@ +(function(global, factory) { + typeof exports === "object" && typeof module !== "undefined" ? module.exports = factory() : typeof define === "function" && define.amd ? define(factory) : global.ActionCable = factory(); +})(this, function() { + "use strict"; + var INTERNAL = { + message_types: { + welcome: "welcome", + ping: "ping", + confirmation: "confirm_subscription", + rejection: "reject_subscription" + }, + default_mount_path: "/cable", + protocols: [ "actioncable-v1-json", "actioncable-unsupported" ] + }; + var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function(obj) { + return typeof obj; + } : function(obj) { + return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; + }; + var classCallCheck = function(instance, Constructor) { + if (!(instance instanceof Constructor)) { + throw new TypeError("Cannot call a class as a function"); + } + }; + var message_types = INTERNAL.message_types, protocols = INTERNAL.protocols; + var supportedProtocols = protocols.slice(0, protocols.length - 1); + var indexOf = [].indexOf; + var Connection = function() { + function Connection(consumer) { + classCallCheck(this, Connection); + this.open = this.open.bind(this); + this.consumer = consumer; + this.subscriptions = this.consumer.subscriptions; + this.monitor = new ActionCable.ConnectionMonitor(this); + this.disconnected = true; + } + Connection.prototype.send = function send(data) { + if (this.isOpen()) { + this.webSocket.send(JSON.stringify(data)); + return true; + } else { + return false; + } + }; + Connection.prototype.open = function open() { + if (this.isActive()) { + ActionCable.log("Attempted to open WebSocket, but existing socket is " + this.getState()); + return false; + } else { + ActionCable.log("Opening WebSocket, current state is " + this.getState() + ", subprotocols: " + protocols); + if (this.webSocket) { + this.uninstallEventHandlers(); + } + this.webSocket = new ActionCable.WebSocket(this.consumer.url, protocols); + this.installEventHandlers(); + this.monitor.start(); + return true; + } + }; + Connection.prototype.close = function close() { + var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : { + allowReconnect: true + }, allowReconnect = _ref.allowReconnect; + if (!allowReconnect) { + this.monitor.stop(); + } + if (this.isActive()) { + return this.webSocket ? this.webSocket.close() : undefined; + } + }; + Connection.prototype.reopen = function reopen() { + ActionCable.log("Reopening WebSocket, current state is " + this.getState()); + if (this.isActive()) { + try { + return this.close(); + } catch (error) { + ActionCable.log("Failed to reopen WebSocket", error); + } finally { + ActionCable.log("Reopening WebSocket in " + this.constructor.reopenDelay + "ms"); + setTimeout(this.open, this.constructor.reopenDelay); + } + } else { + return this.open(); + } + }; + Connection.prototype.getProtocol = function getProtocol() { + return this.webSocket ? this.webSocket.protocol : undefined; + }; + Connection.prototype.isOpen = function isOpen() { + return this.isState("open"); + }; + Connection.prototype.isActive = function isActive() { + return this.isState("open", "connecting"); + }; + Connection.prototype.isProtocolSupported = function isProtocolSupported() { + return indexOf.call(supportedProtocols, this.getProtocol()) >= 0; + }; + Connection.prototype.isState = function isState() { + for (var _len = arguments.length, states = Array(_len), _key = 0; _key < _len; _key++) { + states[_key] = arguments[_key]; + } + return indexOf.call(states, this.getState()) >= 0; + }; + Connection.prototype.getState = function getState() { + if (this.webSocket) { + for (var state in WebSocket) { + if (WebSocket[state] === this.webSocket.readyState) { + return state.toLowerCase(); + } + } + } + return null; + }; + Connection.prototype.installEventHandlers = function installEventHandlers() { + for (var eventName in this.events) { + var handler = this.events[eventName].bind(this); + this.webSocket["on" + eventName] = handler; + } + }; + Connection.prototype.uninstallEventHandlers = function uninstallEventHandlers() { + for (var eventName in this.events) { + this.webSocket["on" + eventName] = function() {}; + } + }; + return Connection; + }(); + Connection.reopenDelay = 500; + Connection.prototype.events = { + message: function message(event) { + if (!this.isProtocolSupported()) { + return; + } + var _JSON$parse = JSON.parse(event.data), identifier = _JSON$parse.identifier, message = _JSON$parse.message, type = _JSON$parse.type; + switch (type) { + case message_types.welcome: + this.monitor.recordConnect(); + return this.subscriptions.reload(); + + case message_types.ping: + return this.monitor.recordPing(); + + case message_types.confirmation: + return this.subscriptions.notify(identifier, "connected"); + + case message_types.rejection: + return this.subscriptions.reject(identifier); + + default: + return this.subscriptions.notify(identifier, "received", message); + } + }, + open: function open() { + ActionCable.log("WebSocket onopen event, using '" + this.getProtocol() + "' subprotocol"); + this.disconnected = false; + if (!this.isProtocolSupported()) { + ActionCable.log("Protocol is unsupported. Stopping monitor and disconnecting."); + return this.close({ + allowReconnect: false + }); + } + }, + close: function close(event) { + ActionCable.log("WebSocket onclose event"); + if (this.disconnected) { + return; + } + this.disconnected = true; + this.monitor.recordDisconnect(); + return this.subscriptions.notifyAll("disconnected", { + willAttemptReconnect: this.monitor.isRunning() + }); + }, + error: function error() { + ActionCable.log("WebSocket onerror event"); + } + }; + var now = function now() { + return new Date().getTime(); + }; + var secondsSince = function secondsSince(time) { + return (now() - time) / 1e3; + }; + var clamp = function clamp(number, min, max) { + return Math.max(min, Math.min(max, number)); + }; + var ConnectionMonitor = function() { + function ConnectionMonitor(connection) { + classCallCheck(this, ConnectionMonitor); + this.visibilityDidChange = this.visibilityDidChange.bind(this); + this.connection = connection; + this.reconnectAttempts = 0; + } + ConnectionMonitor.prototype.start = function start() { + if (!this.isRunning()) { + this.startedAt = now(); + delete this.stoppedAt; + this.startPolling(); + document.addEventListener("visibilitychange", this.visibilityDidChange); + ActionCable.log("ConnectionMonitor started. pollInterval = " + this.getPollInterval() + " ms"); + } + }; + ConnectionMonitor.prototype.stop = function stop() { + if (this.isRunning()) { + this.stoppedAt = now(); + this.stopPolling(); + document.removeEventListener("visibilitychange", this.visibilityDidChange); + ActionCable.log("ConnectionMonitor stopped"); + } + }; + ConnectionMonitor.prototype.isRunning = function isRunning() { + return this.startedAt && !this.stoppedAt; + }; + ConnectionMonitor.prototype.recordPing = function recordPing() { + this.pingedAt = now(); + }; + ConnectionMonitor.prototype.recordConnect = function recordConnect() { + this.reconnectAttempts = 0; + this.recordPing(); + delete this.disconnectedAt; + ActionCable.log("ConnectionMonitor recorded connect"); + }; + ConnectionMonitor.prototype.recordDisconnect = function recordDisconnect() { + this.disconnectedAt = now(); + ActionCable.log("ConnectionMonitor recorded disconnect"); + }; + ConnectionMonitor.prototype.startPolling = function startPolling() { + this.stopPolling(); + this.poll(); + }; + ConnectionMonitor.prototype.stopPolling = function stopPolling() { + clearTimeout(this.pollTimeout); + }; + ConnectionMonitor.prototype.poll = function poll() { + var _this = this; + this.pollTimeout = setTimeout(function() { + _this.reconnectIfStale(); + _this.poll(); + }, this.getPollInterval()); + }; + ConnectionMonitor.prototype.getPollInterval = function getPollInterval() { + var _constructor$pollInte = this.constructor.pollInterval, min = _constructor$pollInte.min, max = _constructor$pollInte.max; + var interval = 5 * Math.log(this.reconnectAttempts + 1); + return Math.round(clamp(interval, min, max) * 1e3); + }; + ConnectionMonitor.prototype.reconnectIfStale = function reconnectIfStale() { + if (this.connectionIsStale()) { + ActionCable.log("ConnectionMonitor detected stale connection. reconnectAttempts = " + this.reconnectAttempts + ", pollInterval = " + this.getPollInterval() + " ms, time disconnected = " + secondsSince(this.disconnectedAt) + " s, stale threshold = " + this.constructor.staleThreshold + " s"); + this.reconnectAttempts++; + if (this.disconnectedRecently()) { + ActionCable.log("ConnectionMonitor skipping reopening recent disconnect"); + } else { + ActionCable.log("ConnectionMonitor reopening"); + this.connection.reopen(); + } + } + }; + ConnectionMonitor.prototype.connectionIsStale = function connectionIsStale() { + return secondsSince(this.pingedAt ? this.pingedAt : this.startedAt) > this.constructor.staleThreshold; + }; + ConnectionMonitor.prototype.disconnectedRecently = function disconnectedRecently() { + return this.disconnectedAt && secondsSince(this.disconnectedAt) < this.constructor.staleThreshold; + }; + ConnectionMonitor.prototype.visibilityDidChange = function visibilityDidChange() { + var _this2 = this; + if (document.visibilityState === "visible") { + setTimeout(function() { + if (_this2.connectionIsStale() || !_this2.connection.isOpen()) { + ActionCable.log("ConnectionMonitor reopening stale connection on visibilitychange. visbilityState = " + document.visibilityState); + _this2.connection.reopen(); + } + }, 200); + } + }; + return ConnectionMonitor; + }(); + ConnectionMonitor.pollInterval = { + min: 3, + max: 30 + }; + ConnectionMonitor.staleThreshold = 6; + var Consumer = function() { + function Consumer(url) { + classCallCheck(this, Consumer); + this.url = url; + this.subscriptions = new ActionCable.Subscriptions(this); + this.connection = new ActionCable.Connection(this); + } + Consumer.prototype.send = function send(data) { + return this.connection.send(data); + }; + Consumer.prototype.connect = function connect() { + return this.connection.open(); + }; + Consumer.prototype.disconnect = function disconnect() { + return this.connection.close({ + allowReconnect: false + }); + }; + Consumer.prototype.ensureActiveConnection = function ensureActiveConnection() { + if (!this.connection.isActive()) { + return this.connection.open(); + } + }; + return Consumer; + }(); + var extend = function extend(object, properties) { + if (properties != null) { + for (var key in properties) { + var value = properties[key]; + object[key] = value; + } + } + return object; + }; + var Subscription = function() { + function Subscription(consumer) { + var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; + var mixin = arguments[2]; + classCallCheck(this, Subscription); + this.consumer = consumer; + this.identifier = JSON.stringify(params); + extend(this, mixin); + } + Subscription.prototype.perform = function perform(action) { + var data = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; + data.action = action; + return this.send(data); + }; + Subscription.prototype.send = function send(data) { + return this.consumer.send({ + command: "message", + identifier: this.identifier, + data: JSON.stringify(data) + }); + }; + Subscription.prototype.unsubscribe = function unsubscribe() { + return this.consumer.subscriptions.remove(this); + }; + return Subscription; + }(); + var Subscriptions = function() { + function Subscriptions(consumer) { + classCallCheck(this, Subscriptions); + this.consumer = consumer; + this.subscriptions = []; + } + Subscriptions.prototype.create = function create(channelName, mixin) { + var channel = channelName; + var params = (typeof channel === "undefined" ? "undefined" : _typeof(channel)) === "object" ? channel : { + channel: channel + }; + var subscription = new ActionCable.Subscription(this.consumer, params, mixin); + return this.add(subscription); + }; + Subscriptions.prototype.add = function add(subscription) { + this.subscriptions.push(subscription); + this.consumer.ensureActiveConnection(); + this.notify(subscription, "initialized"); + this.sendCommand(subscription, "subscribe"); + return subscription; + }; + Subscriptions.prototype.remove = function remove(subscription) { + this.forget(subscription); + if (!this.findAll(subscription.identifier).length) { + this.sendCommand(subscription, "unsubscribe"); + } + return subscription; + }; + Subscriptions.prototype.reject = function reject(identifier) { + var _this = this; + return this.findAll(identifier).map(function(subscription) { + _this.forget(subscription); + _this.notify(subscription, "rejected"); + return subscription; + }); + }; + Subscriptions.prototype.forget = function forget(subscription) { + this.subscriptions = this.subscriptions.filter(function(s) { + return s !== subscription; + }); + return subscription; + }; + Subscriptions.prototype.findAll = function findAll(identifier) { + return this.subscriptions.filter(function(s) { + return s.identifier === identifier; + }); + }; + Subscriptions.prototype.reload = function reload() { + var _this2 = this; + return this.subscriptions.map(function(subscription) { + return _this2.sendCommand(subscription, "subscribe"); + }); + }; + Subscriptions.prototype.notifyAll = function notifyAll(callbackName) { + var _this3 = this; + for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + args[_key - 1] = arguments[_key]; + } + return this.subscriptions.map(function(subscription) { + return _this3.notify.apply(_this3, [ subscription, callbackName ].concat(args)); + }); + }; + Subscriptions.prototype.notify = function notify(subscription, callbackName) { + for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) { + args[_key2 - 2] = arguments[_key2]; + } + var subscriptions = void 0; + if (typeof subscription === "string") { + subscriptions = this.findAll(subscription); + } else { + subscriptions = [ subscription ]; + } + return subscriptions.map(function(subscription) { + return typeof subscription[callbackName] === "function" ? subscription[callbackName].apply(subscription, args) : undefined; + }); + }; + Subscriptions.prototype.sendCommand = function sendCommand(subscription, command) { + var identifier = subscription.identifier; + return this.consumer.send({ + command: command, + identifier: identifier + }); + }; + return Subscriptions; + }(); + var ActionCable = { + Connection: Connection, + ConnectionMonitor: ConnectionMonitor, + Consumer: Consumer, + INTERNAL: INTERNAL, + Subscription: Subscription, + Subscriptions: Subscriptions, + WebSocket: window.WebSocket, + logger: window.console, + createConsumer: function createConsumer(url) { + if (url == null) { + var urlConfig = this.getConfig("url"); + url = urlConfig ? urlConfig : this.INTERNAL.default_mount_path; + } + return new Consumer(this.createWebSocketURL(url)); + }, + getConfig: function getConfig(name) { + var element = document.head.querySelector("meta[name='action-cable-" + name + "']"); + return element ? element.getAttribute("content") : undefined; + }, + createWebSocketURL: function createWebSocketURL(url) { + if (url && !/^wss?:/i.test(url)) { + var a = document.createElement("a"); + a.href = url; + a.href = a.href; + a.protocol = a.protocol.replace("http", "ws"); + return a.href; + } else { + return url; + } + }, + startDebugging: function startDebugging() { + this.debugging = true; + }, + stopDebugging: function stopDebugging() { + this.debugging = null; + }, + log: function log() { + if (this.debugging) { + var _logger; + for (var _len = arguments.length, messages = Array(_len), _key = 0; _key < _len; _key++) { + messages[_key] = arguments[_key]; + } + messages.push(Date.now()); + (_logger = this.logger).log.apply(_logger, [ "[ActionCable]" ].concat(messages)); + } + } + }; + return ActionCable; +}); diff --git a/actioncable/app/assets/javascripts/action_cable/connection.coffee b/actioncable/app/assets/javascripts/action_cable/connection.coffee deleted file mode 100644 index 7fd68cad2f..0000000000 --- a/actioncable/app/assets/javascripts/action_cable/connection.coffee +++ /dev/null @@ -1,116 +0,0 @@ -#= require ./connection_monitor - -# Encapsulate the cable connection held by the consumer. This is an internal class not intended for direct user manipulation. - -{message_types, protocols} = ActionCable.INTERNAL -[supportedProtocols..., unsupportedProtocol] = protocols - -class ActionCable.Connection - @reopenDelay: 500 - - constructor: (@consumer) -> - {@subscriptions} = @consumer - @monitor = new ActionCable.ConnectionMonitor this - @disconnected = true - - send: (data) -> - if @isOpen() - @webSocket.send(JSON.stringify(data)) - true - else - false - - open: => - if @isActive() - ActionCable.log("Attempted to open WebSocket, but existing socket is #{@getState()}") - false - else - ActionCable.log("Opening WebSocket, current state is #{@getState()}, subprotocols: #{protocols}") - @uninstallEventHandlers() if @webSocket? - @webSocket = new ActionCable.WebSocket(@consumer.url, protocols) - @installEventHandlers() - @monitor.start() - true - - close: ({allowReconnect} = {allowReconnect: true}) -> - @monitor.stop() unless allowReconnect - @webSocket?.close() if @isActive() - - reopen: -> - ActionCable.log("Reopening WebSocket, current state is #{@getState()}") - if @isActive() - try - @close() - catch error - ActionCable.log("Failed to reopen WebSocket", error) - finally - ActionCable.log("Reopening WebSocket in #{@constructor.reopenDelay}ms") - setTimeout(@open, @constructor.reopenDelay) - else - @open() - - getProtocol: -> - @webSocket?.protocol - - isOpen: -> - @isState("open") - - isActive: -> - @isState("open", "connecting") - - # Private - - isProtocolSupported: -> - @getProtocol() in supportedProtocols - - isState: (states...) -> - @getState() in states - - getState: -> - return state.toLowerCase() for state, value of WebSocket when value is @webSocket?.readyState - null - - installEventHandlers: -> - for eventName of @events - handler = @events[eventName].bind(this) - @webSocket["on#{eventName}"] = handler - return - - uninstallEventHandlers: -> - for eventName of @events - @webSocket["on#{eventName}"] = -> - return - - events: - message: (event) -> - return unless @isProtocolSupported() - {identifier, message, type} = JSON.parse(event.data) - switch type - when message_types.welcome - @monitor.recordConnect() - @subscriptions.reload() - when message_types.ping - @monitor.recordPing() - when message_types.confirmation - @subscriptions.notify(identifier, "connected") - when message_types.rejection - @subscriptions.reject(identifier) - else - @subscriptions.notify(identifier, "received", message) - - open: -> - ActionCable.log("WebSocket onopen event, using '#{@getProtocol()}' subprotocol") - @disconnected = false - if not @isProtocolSupported() - ActionCable.log("Protocol is unsupported. Stopping monitor and disconnecting.") - @close(allowReconnect: false) - - close: (event) -> - ActionCable.log("WebSocket onclose event") - return if @disconnected - @disconnected = true - @monitor.recordDisconnect() - @subscriptions.notifyAll("disconnected", {willAttemptReconnect: @monitor.isRunning()}) - - error: -> - ActionCable.log("WebSocket onerror event") diff --git a/actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee b/actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee deleted file mode 100644 index 0cc675fa94..0000000000 --- a/actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee +++ /dev/null @@ -1,95 +0,0 @@ -# Responsible for ensuring the cable connection is in good health by validating the heartbeat pings sent from the server, and attempting -# revival reconnections if things go astray. Internal class, not intended for direct user manipulation. -class ActionCable.ConnectionMonitor - @pollInterval: - min: 3 - max: 30 - - @staleThreshold: 6 # Server::Connections::BEAT_INTERVAL * 2 (missed two pings) - - constructor: (@connection) -> - @reconnectAttempts = 0 - - start: -> - unless @isRunning() - @startedAt = now() - delete @stoppedAt - @startPolling() - document.addEventListener("visibilitychange", @visibilityDidChange) - ActionCable.log("ConnectionMonitor started. pollInterval = #{@getPollInterval()} ms") - - stop: -> - if @isRunning() - @stoppedAt = now() - @stopPolling() - document.removeEventListener("visibilitychange", @visibilityDidChange) - ActionCable.log("ConnectionMonitor stopped") - - isRunning: -> - @startedAt? and not @stoppedAt? - - recordPing: -> - @pingedAt = now() - - recordConnect: -> - @reconnectAttempts = 0 - @recordPing() - delete @disconnectedAt - ActionCable.log("ConnectionMonitor recorded connect") - - recordDisconnect: -> - @disconnectedAt = now() - ActionCable.log("ConnectionMonitor recorded disconnect") - - # Private - - startPolling: -> - @stopPolling() - @poll() - - stopPolling: -> - clearTimeout(@pollTimeout) - - poll: -> - @pollTimeout = setTimeout => - @reconnectIfStale() - @poll() - , @getPollInterval() - - getPollInterval: -> - {min, max} = @constructor.pollInterval - interval = 5 * Math.log(@reconnectAttempts + 1) - Math.round(clamp(interval, min, max) * 1000) - - reconnectIfStale: -> - if @connectionIsStale() - ActionCable.log("ConnectionMonitor detected stale connection. reconnectAttempts = #{@reconnectAttempts}, pollInterval = #{@getPollInterval()} ms, time disconnected = #{secondsSince(@disconnectedAt)} s, stale threshold = #{@constructor.staleThreshold} s") - @reconnectAttempts++ - if @disconnectedRecently() - ActionCable.log("ConnectionMonitor skipping reopening recent disconnect") - else - ActionCable.log("ConnectionMonitor reopening") - @connection.reopen() - - connectionIsStale: -> - secondsSince(@pingedAt ? @startedAt) > @constructor.staleThreshold - - disconnectedRecently: -> - @disconnectedAt and secondsSince(@disconnectedAt) < @constructor.staleThreshold - - visibilityDidChange: => - if document.visibilityState is "visible" - setTimeout => - if @connectionIsStale() or not @connection.isOpen() - ActionCable.log("ConnectionMonitor reopening stale connection on visibilitychange. visbilityState = #{document.visibilityState}") - @connection.reopen() - , 200 - - now = -> - new Date().getTime() - - secondsSince = (time) -> - (now() - time) / 1000 - - clamp = (number, min, max) -> - Math.max(min, Math.min(max, number)) diff --git a/actioncable/app/assets/javascripts/action_cable/consumer.coffee b/actioncable/app/assets/javascripts/action_cable/consumer.coffee deleted file mode 100644 index 3298be717f..0000000000 --- a/actioncable/app/assets/javascripts/action_cable/consumer.coffee +++ /dev/null @@ -1,46 +0,0 @@ -#= require ./connection -#= require ./subscriptions -#= require ./subscription - -# The ActionCable.Consumer establishes the connection to a server-side Ruby Connection object. Once established, -# the ActionCable.ConnectionMonitor will ensure that its properly maintained through heartbeats and checking for stale updates. -# The Consumer instance is also the gateway to establishing subscriptions to desired channels through the #createSubscription -# method. -# -# The following example shows how this can be setup: -# -# @App = {} -# App.cable = ActionCable.createConsumer "ws://example.com/accounts/1" -# App.appearance = App.cable.subscriptions.create "AppearanceChannel" -# -# For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription. -# -# When a consumer is created, it automatically connects with the server. -# -# To disconnect from the server, call -# -# App.cable.disconnect() -# -# and to restart the connection: -# -# App.cable.connect() -# -# Any channel subscriptions which existed prior to disconnecting will -# automatically resubscribe. -class ActionCable.Consumer - constructor: (@url) -> - @subscriptions = new ActionCable.Subscriptions this - @connection = new ActionCable.Connection this - - send: (data) -> - @connection.send(data) - - connect: -> - @connection.open() - - disconnect: -> - @connection.close(allowReconnect: false) - - ensureActiveConnection: -> - unless @connection.isActive() - @connection.open() diff --git a/actioncable/app/assets/javascripts/action_cable/subscription.coffee b/actioncable/app/assets/javascripts/action_cable/subscription.coffee deleted file mode 100644 index 8e0805a174..0000000000 --- a/actioncable/app/assets/javascripts/action_cable/subscription.coffee +++ /dev/null @@ -1,72 +0,0 @@ -# A new subscription is created through the ActionCable.Subscriptions instance available on the consumer. -# It provides a number of callbacks and a method for calling remote procedure calls on the corresponding -# Channel instance on the server side. -# -# An example demonstrates the basic functionality: -# -# App.appearance = App.cable.subscriptions.create "AppearanceChannel", -# connected: -> -# # Called once the subscription has been successfully completed -# -# disconnected: ({ willAttemptReconnect: boolean }) -> -# # Called when the client has disconnected with the server. -# # The object will have an `willAttemptReconnect` property which -# # says whether the client has the intention of attempting -# # to reconnect. -# -# appear: -> -# @perform 'appear', appearing_on: @appearingOn() -# -# away: -> -# @perform 'away' -# -# appearingOn: -> -# $('main').data 'appearing-on' -# -# The methods #appear and #away forward their intent to the remote AppearanceChannel instance on the server -# by calling the `@perform` method with the first parameter being the action (which maps to AppearanceChannel#appear/away). -# The second parameter is a hash that'll get JSON encoded and made available on the server in the data parameter. -# -# This is how the server component would look: -# -# class AppearanceChannel < ApplicationActionCable::Channel -# def subscribed -# current_user.appear -# end -# -# def unsubscribed -# current_user.disappear -# end -# -# def appear(data) -# current_user.appear on: data['appearing_on'] -# end -# -# def away -# current_user.away -# end -# end -# -# The "AppearanceChannel" name is automatically mapped between the client-side subscription creation and the server-side Ruby class name. -# The AppearanceChannel#appear/away public methods are exposed automatically to client-side invocation through the @perform method. -class ActionCable.Subscription - constructor: (@consumer, params = {}, mixin) -> - @identifier = JSON.stringify(params) - extend(this, mixin) - - # Perform a channel action with the optional data passed as an attribute - perform: (action, data = {}) -> - data.action = action - @send(data) - - send: (data) -> - @consumer.send(command: "message", identifier: @identifier, data: JSON.stringify(data)) - - unsubscribe: -> - @consumer.subscriptions.remove(this) - - extend = (object, properties) -> - if properties? - for key, value of properties - object[key] = value - object diff --git a/actioncable/app/assets/javascripts/action_cable/subscriptions.coffee b/actioncable/app/assets/javascripts/action_cable/subscriptions.coffee deleted file mode 100644 index aa052bf5d8..0000000000 --- a/actioncable/app/assets/javascripts/action_cable/subscriptions.coffee +++ /dev/null @@ -1,66 +0,0 @@ -# Collection class for creating (and internally managing) channel subscriptions. The only method intended to be triggered by the user -# us ActionCable.Subscriptions#create, and it should be called through the consumer like so: -# -# @App = {} -# App.cable = ActionCable.createConsumer "ws://example.com/accounts/1" -# App.appearance = App.cable.subscriptions.create "AppearanceChannel" -# -# For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription. -class ActionCable.Subscriptions - constructor: (@consumer) -> - @subscriptions = [] - - create: (channelName, mixin) -> - channel = channelName - params = if typeof channel is "object" then channel else {channel} - subscription = new ActionCable.Subscription @consumer, params, mixin - @add(subscription) - - # Private - - add: (subscription) -> - @subscriptions.push(subscription) - @consumer.ensureActiveConnection() - @notify(subscription, "initialized") - @sendCommand(subscription, "subscribe") - subscription - - remove: (subscription) -> - @forget(subscription) - unless @findAll(subscription.identifier).length - @sendCommand(subscription, "unsubscribe") - subscription - - reject: (identifier) -> - for subscription in @findAll(identifier) - @forget(subscription) - @notify(subscription, "rejected") - subscription - - forget: (subscription) -> - @subscriptions = (s for s in @subscriptions when s isnt subscription) - subscription - - findAll: (identifier) -> - s for s in @subscriptions when s.identifier is identifier - - reload: -> - for subscription in @subscriptions - @sendCommand(subscription, "subscribe") - - notifyAll: (callbackName, args...) -> - for subscription in @subscriptions - @notify(subscription, callbackName, args...) - - notify: (subscription, callbackName, args...) -> - if typeof subscription is "string" - subscriptions = @findAll(subscription) - else - subscriptions = [subscription] - - for subscription in subscriptions - subscription[callbackName]?(args...) - - sendCommand: (subscription, command) -> - {identifier} = subscription - @consumer.send({command, identifier}) diff --git a/actioncable/app/javascript/action_cable/connection.js b/actioncable/app/javascript/action_cable/connection.js new file mode 100644 index 0000000000..4ad436f2c0 --- /dev/null +++ b/actioncable/app/javascript/action_cable/connection.js @@ -0,0 +1,156 @@ +import ActionCable from "./index" +import INTERNAL from "./internal" + +// Encapsulate the cable connection held by the consumer. This is an internal class not intended for direct user manipulation. + +const {message_types, protocols} = INTERNAL +const supportedProtocols = protocols.slice(0, protocols.length - 1) + +const indexOf = [].indexOf + +class Connection { + constructor(consumer) { + this.open = this.open.bind(this) + this.consumer = consumer + this.subscriptions = this.consumer.subscriptions + this.monitor = new ActionCable.ConnectionMonitor(this) + this.disconnected = true + } + + send(data) { + if (this.isOpen()) { + this.webSocket.send(JSON.stringify(data)) + return true + } else { + return false + } + } + + open() { + if (this.isActive()) { + ActionCable.log(`Attempted to open WebSocket, but existing socket is ${this.getState()}`) + return false + } else { + ActionCable.log(`Opening WebSocket, current state is ${this.getState()}, subprotocols: ${protocols}`) + if (this.webSocket) { this.uninstallEventHandlers() } + this.webSocket = new ActionCable.WebSocket(this.consumer.url, protocols) + this.installEventHandlers() + this.monitor.start() + return true + } + } + + close({allowReconnect} = {allowReconnect: true}) { + if (!allowReconnect) { this.monitor.stop() } + if (this.isActive()) { return (this.webSocket ? this.webSocket.close() : undefined) } + } + + reopen() { + ActionCable.log(`Reopening WebSocket, current state is ${this.getState()}`) + if (this.isActive()) { + try { + return this.close() + } catch (error) { + ActionCable.log("Failed to reopen WebSocket", error) + } + finally { + ActionCable.log(`Reopening WebSocket in ${this.constructor.reopenDelay}ms`) + setTimeout(this.open, this.constructor.reopenDelay) + } + } else { + return this.open() + } + } + + getProtocol() { + return (this.webSocket ? this.webSocket.protocol : undefined) + } + + isOpen() { + return this.isState("open") + } + + isActive() { + return this.isState("open", "connecting") + } + + // Private + + isProtocolSupported() { + return indexOf.call(supportedProtocols, this.getProtocol()) >= 0 + } + + isState(...states) { + return indexOf.call(states, this.getState()) >= 0 + } + + getState() { + if (this.webSocket) { + for (let state in WebSocket) { + if (WebSocket[state] === this.webSocket.readyState) { + return state.toLowerCase() + } + } + } + return null + } + + installEventHandlers() { + for (let eventName in this.events) { + const handler = this.events[eventName].bind(this) + this.webSocket[`on${eventName}`] = handler + } + } + + uninstallEventHandlers() { + for (let eventName in this.events) { + this.webSocket[`on${eventName}`] = function() {} + } + } + +} + +Connection.reopenDelay = 500 + +Connection.prototype.events = { + message(event) { + if (!this.isProtocolSupported()) { return } + const {identifier, message, type} = JSON.parse(event.data) + switch (type) { + case message_types.welcome: + this.monitor.recordConnect() + return this.subscriptions.reload() + case message_types.ping: + return this.monitor.recordPing() + case message_types.confirmation: + return this.subscriptions.notify(identifier, "connected") + case message_types.rejection: + return this.subscriptions.reject(identifier) + default: + return this.subscriptions.notify(identifier, "received", message) + } + }, + + open() { + ActionCable.log(`WebSocket onopen event, using '${this.getProtocol()}' subprotocol`) + this.disconnected = false + if (!this.isProtocolSupported()) { + ActionCable.log("Protocol is unsupported. Stopping monitor and disconnecting.") + return this.close({allowReconnect: false}) + } + }, + + close(event) { + ActionCable.log("WebSocket onclose event") + if (this.disconnected) { return } + this.disconnected = true + this.monitor.recordDisconnect() + return this.subscriptions.notifyAll("disconnected", {willAttemptReconnect: this.monitor.isRunning()}) + }, + + error() { + ActionCable.log("WebSocket onerror event") + } +} + +export default Connection diff --git a/actioncable/app/javascript/action_cable/connection_monitor.js b/actioncable/app/javascript/action_cable/connection_monitor.js new file mode 100644 index 0000000000..8d6ac1f682 --- /dev/null +++ b/actioncable/app/javascript/action_cable/connection_monitor.js @@ -0,0 +1,125 @@ +import ActionCable from "./index" + +// Responsible for ensuring the cable connection is in good health by validating the heartbeat pings sent from the server, and attempting +// revival reconnections if things go astray. Internal class, not intended for direct user manipulation. + +const now = () => new Date().getTime() + +const secondsSince = time => (now() - time) / 1000 + +const clamp = (number, min, max) => Math.max(min, Math.min(max, number)) + +class ConnectionMonitor { + constructor(connection) { + this.visibilityDidChange = this.visibilityDidChange.bind(this) + this.connection = connection + this.reconnectAttempts = 0 + } + + start() { + if (!this.isRunning()) { + this.startedAt = now() + delete this.stoppedAt + this.startPolling() + document.addEventListener("visibilitychange", this.visibilityDidChange) + ActionCable.log(`ConnectionMonitor started. pollInterval = ${this.getPollInterval()} ms`) + } + } + + stop() { + if (this.isRunning()) { + this.stoppedAt = now() + this.stopPolling() + document.removeEventListener("visibilitychange", this.visibilityDidChange) + ActionCable.log("ConnectionMonitor stopped") + } + } + + isRunning() { + return this.startedAt && !this.stoppedAt + } + + recordPing() { + this.pingedAt = now() + } + + recordConnect() { + this.reconnectAttempts = 0 + this.recordPing() + delete this.disconnectedAt + ActionCable.log("ConnectionMonitor recorded connect") + } + + recordDisconnect() { + this.disconnectedAt = now() + ActionCable.log("ConnectionMonitor recorded disconnect") + } + + // Private + + startPolling() { + this.stopPolling() + this.poll() + } + + stopPolling() { + clearTimeout(this.pollTimeout) + } + + poll() { + this.pollTimeout = setTimeout(() => { + this.reconnectIfStale() + this.poll() + } + , this.getPollInterval()) + } + + getPollInterval() { + const {min, max} = this.constructor.pollInterval + const interval = 5 * Math.log(this.reconnectAttempts + 1) + return Math.round(clamp(interval, min, max) * 1000) + } + + reconnectIfStale() { + if (this.connectionIsStale()) { + ActionCable.log(`ConnectionMonitor detected stale connection. reconnectAttempts = ${this.reconnectAttempts}, pollInterval = ${this.getPollInterval()} ms, time disconnected = ${secondsSince(this.disconnectedAt)} s, stale threshold = ${this.constructor.staleThreshold} s`) + this.reconnectAttempts++ + if (this.disconnectedRecently()) { + ActionCable.log("ConnectionMonitor skipping reopening recent disconnect") + } else { + ActionCable.log("ConnectionMonitor reopening") + this.connection.reopen() + } + } + } + + connectionIsStale() { + return secondsSince(this.pingedAt ? this.pingedAt : this.startedAt) > this.constructor.staleThreshold + } + + disconnectedRecently() { + return this.disconnectedAt && (secondsSince(this.disconnectedAt) < this.constructor.staleThreshold) + } + + visibilityDidChange() { + if (document.visibilityState === "visible") { + setTimeout(() => { + if (this.connectionIsStale() || !this.connection.isOpen()) { + ActionCable.log(`ConnectionMonitor reopening stale connection on visibilitychange. visbilityState = ${document.visibilityState}`) + this.connection.reopen() + } + } + , 200) + } + } + +} + +ConnectionMonitor.pollInterval = { + min: 3, + max: 30 +} + +ConnectionMonitor.staleThreshold = 6 // Server::Connections::BEAT_INTERVAL * 2 (missed two pings) + +export default ConnectionMonitor diff --git a/actioncable/app/javascript/action_cable/consumer.js b/actioncable/app/javascript/action_cable/consumer.js new file mode 100644 index 0000000000..c484ceebbd --- /dev/null +++ b/actioncable/app/javascript/action_cable/consumer.js @@ -0,0 +1,53 @@ +import ActionCable from "./index" + +// The ActionCable.Consumer establishes the connection to a server-side Ruby Connection object. Once established, +// the ActionCable.ConnectionMonitor will ensure that its properly maintained through heartbeats and checking for stale updates. +// The Consumer instance is also the gateway to establishing subscriptions to desired channels through the #createSubscription +// method. +// +// The following example shows how this can be setup: +// +// App = {} +// App.cable = ActionCable.createConsumer("ws://example.com/accounts/1") +// App.appearance = App.cable.subscriptions.create("AppearanceChannel") +// +// For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription. +// +// When a consumer is created, it automatically connects with the server. +// +// To disconnect from the server, call +// +// App.cable.disconnect() +// +// and to restart the connection: +// +// App.cable.connect() +// +// Any channel subscriptions which existed prior to disconnecting will +// automatically resubscribe. + +export default class Consumer { + constructor(url) { + this.url = url + this.subscriptions = new ActionCable.Subscriptions(this) + this.connection = new ActionCable.Connection(this) + } + + send(data) { + return this.connection.send(data) + } + + connect() { + return this.connection.open() + } + + disconnect() { + return this.connection.close({allowReconnect: false}) + } + + ensureActiveConnection() { + if (!this.connection.isActive()) { + return this.connection.open() + } + } +} diff --git a/actioncable/app/javascript/action_cable/index.js b/actioncable/app/javascript/action_cable/index.js new file mode 100644 index 0000000000..eb0c4844df --- /dev/null +++ b/actioncable/app/javascript/action_cable/index.js @@ -0,0 +1,58 @@ +import Connection from "./connection" +import ConnectionMonitor from "./connection_monitor" +import Consumer from "./consumer" +import INTERNAL from "./internal" +import Subscription from "./subscription" +import Subscriptions from "./subscriptions" + +export default { + Connection, + ConnectionMonitor, + Consumer, + INTERNAL, + Subscription, + Subscriptions, + WebSocket: window.WebSocket, + logger: window.console, + + createConsumer(url) { + if (url == null) { + const urlConfig = this.getConfig("url") + url = (urlConfig ? urlConfig : this.INTERNAL.default_mount_path) + } + return new Consumer(this.createWebSocketURL(url)) + }, + + getConfig(name) { + const element = document.head.querySelector(`meta[name='action-cable-${name}']`) + return (element ? element.getAttribute("content") : undefined) + }, + + createWebSocketURL(url) { + if (url && !/^wss?:/i.test(url)) { + const a = document.createElement("a") + a.href = url + // Fix populating Location properties in IE. Otherwise, protocol will be blank. + a.href = a.href + a.protocol = a.protocol.replace("http", "ws") + return a.href + } else { + return url + } + }, + + startDebugging() { + this.debugging = true + }, + + stopDebugging() { + this.debugging = null + }, + + log(...messages) { + if (this.debugging) { + messages.push(Date.now()) + this.logger.log("[ActionCable]", ...messages) + } + } +} diff --git a/actioncable/app/javascript/action_cable/subscription.js b/actioncable/app/javascript/action_cable/subscription.js new file mode 100644 index 0000000000..7de08f93b3 --- /dev/null +++ b/actioncable/app/javascript/action_cable/subscription.js @@ -0,0 +1,89 @@ +// A new subscription is created through the ActionCable.Subscriptions instance available on the consumer. +// It provides a number of callbacks and a method for calling remote procedure calls on the corresponding +// Channel instance on the server side. +// +// An example demonstrates the basic functionality: +// +// App.appearance = App.cable.subscriptions.create("AppearanceChannel", { +// connected() { +// // Called once the subscription has been successfully completed +// }, +// +// disconnected({ willAttemptReconnect: boolean }) { +// // Called when the client has disconnected with the server. +// // The object will have an `willAttemptReconnect` property which +// // says whether the client has the intention of attempting +// // to reconnect. +// }, +// +// appear() { +// this.perform('appear', {appearing_on: this.appearingOn()}) +// }, +// +// away() { +// this.perform('away') +// }, +// +// appearingOn() { +// $('main').data('appearing-on') +// } +// }) +// +// The methods #appear and #away forward their intent to the remote AppearanceChannel instance on the server +// by calling the `perform` method with the first parameter being the action (which maps to AppearanceChannel#appear/away). +// The second parameter is a hash that'll get JSON encoded and made available on the server in the data parameter. +// +// This is how the server component would look: +// +// class AppearanceChannel < ApplicationActionCable::Channel +// def subscribed +// current_user.appear +// end +// +// def unsubscribed +// current_user.disappear +// end +// +// def appear(data) +// current_user.appear on: data['appearing_on'] +// end +// +// def away +// current_user.away +// end +// end +// +// The "AppearanceChannel" name is automatically mapped between the client-side subscription creation and the server-side Ruby class name. +// The AppearanceChannel#appear/away public methods are exposed automatically to client-side invocation through the perform method. + +const extend = function(object, properties) { + if (properties != null) { + for (let key in properties) { + const value = properties[key] + object[key] = value + } + } + return object +} + +export default class Subscription { + constructor(consumer, params = {}, mixin) { + this.consumer = consumer + this.identifier = JSON.stringify(params) + extend(this, mixin) + } + + // Perform a channel action with the optional data passed as an attribute + perform(action, data = {}) { + data.action = action + return this.send(data) + } + + send(data) { + return this.consumer.send({command: "message", identifier: this.identifier, data: JSON.stringify(data)}) + } + + unsubscribe() { + return this.consumer.subscriptions.remove(this) + } +} diff --git a/actioncable/app/javascript/action_cable/subscriptions.js b/actioncable/app/javascript/action_cable/subscriptions.js new file mode 100644 index 0000000000..712ff50d28 --- /dev/null +++ b/actioncable/app/javascript/action_cable/subscriptions.js @@ -0,0 +1,86 @@ +import ActionCable from "./index" + +// Collection class for creating (and internally managing) channel subscriptions. The only method intended to be triggered by the user +// us ActionCable.Subscriptions#create, and it should be called through the consumer like so: +// +// App = {} +// App.cable = ActionCable.createConsumer("ws://example.com/accounts/1") +// App.appearance = App.cable.subscriptions.create("AppearanceChannel") +// +// For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription. + +export default class Subscriptions { + constructor(consumer) { + this.consumer = consumer + this.subscriptions = [] + } + + create(channelName, mixin) { + const channel = channelName + const params = typeof channel === "object" ? channel : {channel} + const subscription = new ActionCable.Subscription(this.consumer, params, mixin) + return this.add(subscription) + } + + // Private + + add(subscription) { + this.subscriptions.push(subscription) + this.consumer.ensureActiveConnection() + this.notify(subscription, "initialized") + this.sendCommand(subscription, "subscribe") + return subscription + } + + remove(subscription) { + this.forget(subscription) + if (!this.findAll(subscription.identifier).length) { + this.sendCommand(subscription, "unsubscribe") + } + return subscription + } + + reject(identifier) { + return this.findAll(identifier).map((subscription) => { + this.forget(subscription) + this.notify(subscription, "rejected") + return subscription + }) + } + + forget(subscription) { + this.subscriptions = (this.subscriptions.filter((s) => s !== subscription)) + return subscription + } + + findAll(identifier) { + return this.subscriptions.filter((s) => s.identifier === identifier) + } + + reload() { + return this.subscriptions.map((subscription) => + this.sendCommand(subscription, "subscribe")) + } + + notifyAll(callbackName, ...args) { + return this.subscriptions.map((subscription) => + this.notify(subscription, callbackName, ...args)) + } + + notify(subscription, callbackName, ...args) { + let subscriptions + if (typeof subscription === "string") { + subscriptions = this.findAll(subscription) + } else { + subscriptions = [subscription] + } + + return subscriptions.map((subscription) => + (typeof subscription[callbackName] === "function" ? subscription[callbackName](...args) : undefined)) + } + + sendCommand(subscription, command) { + const {identifier} = subscription + return this.consumer.send({command, identifier}) + } +} diff --git a/actioncable/blade.yml b/actioncable/blade.yml index e38e9b2f1d..54d13a2ba2 100644 --- a/actioncable/blade.yml +++ b/actioncable/blade.yml @@ -6,12 +6,6 @@ load_paths: logical_paths: - test.js -build: - logical_paths: - - action_cable.js - path: lib/assets/compiled - clean: true - plugins: sauce_labs: browsers: diff --git a/actioncable/lib/action_cable.rb b/actioncable/lib/action_cable.rb index e7456e3c1b..d261d4112e 100644 --- a/actioncable/lib/action_cable.rb +++ b/actioncable/lib/action_cable.rb @@ -32,13 +32,13 @@ module ActionCable INTERNAL = { message_types: { - welcome: "welcome".freeze, - ping: "ping".freeze, - confirmation: "confirm_subscription".freeze, - rejection: "reject_subscription".freeze + welcome: "welcome", + ping: "ping", + confirmation: "confirm_subscription", + rejection: "reject_subscription" }, - default_mount_path: "/cable".freeze, - protocols: ["actioncable-v1-json".freeze, "actioncable-unsupported".freeze].freeze + default_mount_path: "/cable", + protocols: ["actioncable-v1-json", "actioncable-unsupported"].freeze } # Singleton instance of the server @@ -51,4 +51,6 @@ module ActionCable autoload :Channel autoload :RemoteConnections autoload :SubscriptionAdapter + autoload :TestHelper + autoload :TestCase end diff --git a/actioncable/lib/action_cable/channel.rb b/actioncable/lib/action_cable/channel.rb index d2f6fbbbc7..d5118b9dc9 100644 --- a/actioncable/lib/action_cable/channel.rb +++ b/actioncable/lib/action_cable/channel.rb @@ -11,6 +11,7 @@ module ActionCable autoload :Naming autoload :PeriodicTimers autoload :Streams + autoload :TestCase end end end diff --git a/actioncable/lib/action_cable/channel/base.rb b/actioncable/lib/action_cable/channel/base.rb index c5ad749bfe..70c93ec0f3 100644 --- a/actioncable/lib/action_cable/channel/base.rb +++ b/actioncable/lib/action_cable/channel/base.rb @@ -270,7 +270,7 @@ module ActionCable end def action_signature(action, data) - "#{self.class.name}##{action}".dup.tap do |signature| + (+"#{self.class.name}##{action}").tap do |signature| if (arguments = data.except("action")).any? signature << "(#{arguments.inspect})" end diff --git a/actioncable/lib/action_cable/channel/test_case.rb b/actioncable/lib/action_cable/channel/test_case.rb new file mode 100644 index 0000000000..dd2762ccd0 --- /dev/null +++ b/actioncable/lib/action_cable/channel/test_case.rb @@ -0,0 +1,271 @@ +# frozen_string_literal: true + +require "active_support" +require "active_support/test_case" +require "active_support/core_ext/hash/indifferent_access" +require "json" + +module ActionCable + module Channel + class NonInferrableChannelError < ::StandardError + def initialize(name) + super "Unable to determine the channel to test from #{name}. " + + "You'll need to specify it using `tests YourChannel` in your " + + "test case definition." + end + end + + # Stub `stream_from` to track streams for the channel. + # Add public aliases for `subscription_confirmation_sent?` and + # `subscription_rejected?`. + module ChannelStub + def confirmed? + subscription_confirmation_sent? + end + + def rejected? + subscription_rejected? + end + + def stream_from(broadcasting, *) + streams << broadcasting + end + + def stop_all_streams + @_streams = [] + end + + def streams + @_streams ||= [] + end + + # Make periodic timers no-op + def start_periodic_timers; end + alias stop_periodic_timers start_periodic_timers + end + + class ConnectionStub + attr_reader :transmissions, :identifiers, :subscriptions, :logger + + def initialize(identifiers = {}) + @transmissions = [] + + identifiers.each do |identifier, val| + define_singleton_method(identifier) { val } + end + + @subscriptions = ActionCable::Connection::Subscriptions.new(self) + @identifiers = identifiers.keys + @logger = ActiveSupport::TaggedLogging.new ActiveSupport::Logger.new(StringIO.new) + end + + def transmit(cable_message) + transmissions << cable_message.with_indifferent_access + end + end + + # Superclass for Action Cable channel functional tests. + # + # == Basic example + # + # Functional tests are written as follows: + # 1. First, one uses the +subscribe+ method to simulate subscription creation. + # 2. Then, one asserts whether the current state is as expected. "State" can be anything: + # transmitted messages, subscribed streams, etc. + # + # For example: + # + # class ChatChannelTest < ActionCable::Channel::TestCase + # def test_subscribed_with_room_number + # # Simulate a subscription creation + # subscribe room_number: 1 + # + # # Asserts that the subscription was successfully created + # assert subscription.confirmed? + # + # # Asserts that the channel subscribes connection to a stream + # assert_equal "chat_1", streams.last + # end + # + # def test_does_not_subscribe_without_room_number + # subscribe + # + # # Asserts that the subscription was rejected + # assert subscription.rejected? + # end + # end + # + # You can also perform actions: + # def test_perform_speak + # subscribe room_number: 1 + # + # perform :speak, message: "Hello, Rails!" + # + # assert_equal "Hello, Rails!", transmissions.last["text"] + # end + # + # == Special methods + # + # ActionCable::Channel::TestCase will also automatically provide the following instance + # methods for use in the tests: + # + # <b>connection</b>:: + # An ActionCable::Channel::ConnectionStub, representing the current HTTP connection. + # <b>subscription</b>:: + # An instance of the current channel, created when you call `subscribe`. + # <b>transmissions</b>:: + # A list of all messages that have been transmitted into the channel. + # <b>streams</b>:: + # A list of all created streams subscriptions (as identifiers) for the subscription. + # + # + # == Channel is automatically inferred + # + # ActionCable::Channel::TestCase will automatically infer the channel under test + # from the test class name. If the channel cannot be inferred from the test + # class name, you can explicitly set it with +tests+. + # + # class SpecialEdgeCaseChannelTest < ActionCable::Channel::TestCase + # tests SpecialChannel + # end + # + # == Specifying connection identifiers + # + # You need to set up your connection manually to provide values for the identifiers. + # To do this just use: + # + # stub_connection(user: users[:john]) + # + # == Testing broadcasting + # + # ActionCable::Channel::TestCase enhances ActionCable::TestHelper assertions (e.g. + # +assert_broadcasts+) to handle broadcasting to models: + # + # + # # in your channel + # def speak(data) + # broadcast_to room, text: data["message"] + # end + # + # def test_speak + # subscribe room_id: rooms[:chat].id + # + # assert_broadcasts_on(rooms[:chat], text: "Hello, Rails!") do + # perform :speak, message: "Hello, Rails!" + # end + # end + class TestCase < ActiveSupport::TestCase + module Behavior + extend ActiveSupport::Concern + + include ActiveSupport::Testing::ConstantLookup + include ActionCable::TestHelper + + CHANNEL_IDENTIFIER = "test_stub" + + included do + class_attribute :_channel_class + + attr_reader :connection, :subscription + delegate :streams, to: :subscription + + ActiveSupport.run_load_hooks(:action_cable_channel_test_case, self) + end + + module ClassMethods + def tests(channel) + case channel + when String, Symbol + self._channel_class = channel.to_s.camelize.constantize + when Module + self._channel_class = channel + else + raise NonInferrableChannelError.new(channel) + end + end + + def channel_class + if channel = self._channel_class + channel + else + tests determine_default_channel(name) + end + end + + def determine_default_channel(name) + channel = determine_constant_from_test_name(name) do |constant| + Class === constant && constant < ActionCable::Channel::Base + end + raise NonInferrableChannelError.new(name) if channel.nil? + channel + end + end + + # Setup test connection with the specified identifiers: + # + # class ApplicationCable < ActionCable::Connection::Base + # identified_by :user, :token + # end + # + # stub_connection(user: users[:john], token: 'my-secret-token') + def stub_connection(identifiers = {}) + @connection = ConnectionStub.new(identifiers) + end + + # Subscribe to the channel under test. Optionally pass subscription parameters as a Hash. + def subscribe(params = {}) + @connection ||= stub_connection + @subscription = self.class.channel_class.new(connection, CHANNEL_IDENTIFIER, params.with_indifferent_access) + @subscription.singleton_class.include(ChannelStub) + @subscription.subscribe_to_channel + @subscription + end + + # Unsubscribe the subscription under test. + def unsubscribe + check_subscribed! + subscription.unsubscribe_from_channel + end + + # Perform action on a channel. + # + # NOTE: Must be subscribed. + def perform(action, data = {}) + check_subscribed! + subscription.perform_action(data.stringify_keys.merge("action" => action.to_s)) + end + + # Returns messages transmitted into channel + def transmissions + # Return only directly sent message (via #transmit) + connection.transmissions.map { |data| data["message"] }.compact + end + + # Enhance TestHelper assertions to handle non-String + # broadcastings + def assert_broadcasts(stream_or_object, *args) + super(broadcasting_for(stream_or_object), *args) + end + + def assert_broadcast_on(stream_or_object, *args) + super(broadcasting_for(stream_or_object), *args) + end + + private + def check_subscribed! + raise "Must be subscribed!" if subscription.nil? || subscription.rejected? + end + + def broadcasting_for(stream_or_object) + return stream_or_object if stream_or_object.is_a?(String) + + self.class.channel_class.broadcasting_for( + [self.class.channel_class.channel_name, stream_or_object] + ) + end + end + + include Behavior + end + end +end diff --git a/actioncable/lib/action_cable/connection/authorization.rb b/actioncable/lib/action_cable/connection/authorization.rb index a22179d988..aef3386f71 100644 --- a/actioncable/lib/action_cable/connection/authorization.rb +++ b/actioncable/lib/action_cable/connection/authorization.rb @@ -5,7 +5,7 @@ module ActionCable module Authorization class UnauthorizedError < StandardError; end - # Closes the \WebSocket connection if it is open and returns a 404 "File not Found" response. + # Closes the WebSocket connection if it is open and returns a 404 "File not Found" response. def reject_unauthorized_connection logger.error "An unauthorized connection attempt was rejected" raise UnauthorizedError diff --git a/actioncable/lib/action_cable/subscription_adapter.rb b/actioncable/lib/action_cable/subscription_adapter.rb index bcece8d33b..6a9d5c2080 100644 --- a/actioncable/lib/action_cable/subscription_adapter.rb +++ b/actioncable/lib/action_cable/subscription_adapter.rb @@ -5,6 +5,7 @@ module ActionCable extend ActiveSupport::Autoload autoload :Base + autoload :Test autoload :SubscriberMap autoload :ChannelPrefix end diff --git a/actioncable/lib/action_cable/subscription_adapter/redis.rb b/actioncable/lib/action_cable/subscription_adapter/redis.rb index c28951608f..ad8fa52760 100644 --- a/actioncable/lib/action_cable/subscription_adapter/redis.rb +++ b/actioncable/lib/action_cable/subscription_adapter/redis.rb @@ -13,7 +13,8 @@ module ActionCable # Overwrite this factory method for Redis connections if you want to use a different Redis library than the redis gem. # This is needed, for example, when using Makara proxies for distributed Redis. cattr_accessor :redis_connector, default: ->(config) do - ::Redis.new(config.slice(:url, :host, :port, :db, :password)) + config[:id] ||= "ActionCable-PID-#{$$}" + ::Redis.new(config.slice(:url, :host, :port, :db, :password, :id)) end def initialize(*) diff --git a/actioncable/lib/action_cable/subscription_adapter/test.rb b/actioncable/lib/action_cable/subscription_adapter/test.rb new file mode 100644 index 0000000000..ce604cc88e --- /dev/null +++ b/actioncable/lib/action_cable/subscription_adapter/test.rb @@ -0,0 +1,40 @@ +# frozen_string_literal: true + +require_relative "async" + +module ActionCable + module SubscriptionAdapter + # == Test adapter for Action Cable + # + # The test adapter should be used only in testing. Along with + # <tt>ActionCable::TestHelper</tt> it makes a great tool to test your Rails application. + # + # To use the test adapter set +adapter+ value to +test+ in your +config/cable.yml+ file. + # + # NOTE: Test adapter extends the <tt>ActionCable::SubscriptionsAdapter::Async</tt> adapter, + # so it could be used in system tests too. + class Test < Async + def broadcast(channel, payload) + broadcasts(channel) << payload + super + end + + def broadcasts(channel) + channels_data[channel] ||= [] + end + + def clear_messages(channel) + channels_data[channel] = [] + end + + def clear + @channels_data = nil + end + + private + def channels_data + @channels_data ||= {} + end + end + end +end diff --git a/actioncable/lib/action_cable/test_case.rb b/actioncable/lib/action_cable/test_case.rb new file mode 100644 index 0000000000..d153259bf6 --- /dev/null +++ b/actioncable/lib/action_cable/test_case.rb @@ -0,0 +1,11 @@ +# frozen_string_literal: true + +require "active_support/test_case" + +module ActionCable + class TestCase < ActiveSupport::TestCase + include ActionCable::TestHelper + + ActiveSupport.run_load_hooks(:action_cable_test_case, self) + end +end diff --git a/actioncable/lib/action_cable/test_helper.rb b/actioncable/lib/action_cable/test_helper.rb new file mode 100644 index 0000000000..7bc877663c --- /dev/null +++ b/actioncable/lib/action_cable/test_helper.rb @@ -0,0 +1,133 @@ +# frozen_string_literal: true + +module ActionCable + # Provides helper methods for testing Action Cable broadcasting + module TestHelper + def before_setup # :nodoc: + server = ActionCable.server + test_adapter = ActionCable::SubscriptionAdapter::Test.new(server) + + @old_pubsub_adapter = server.pubsub + + server.instance_variable_set(:@pubsub, test_adapter) + super + end + + def after_teardown # :nodoc: + super + ActionCable.server.instance_variable_set(:@pubsub, @old_pubsub_adapter) + end + + # Asserts that the number of broadcasted messages to the stream matches the given number. + # + # def test_broadcasts + # assert_broadcasts 'messages', 0 + # ActionCable.server.broadcast 'messages', { text: 'hello' } + # assert_broadcasts 'messages', 1 + # ActionCable.server.broadcast 'messages', { text: 'world' } + # assert_broadcasts 'messages', 2 + # end + # + # If a block is passed, that block should cause the specified number of + # messages to be broadcasted. + # + # def test_broadcasts_again + # assert_broadcasts('messages', 1) do + # ActionCable.server.broadcast 'messages', { text: 'hello' } + # end + # + # assert_broadcasts('messages', 2) do + # ActionCable.server.broadcast 'messages', { text: 'hi' } + # ActionCable.server.broadcast 'messages', { text: 'how are you?' } + # end + # end + # + def assert_broadcasts(stream, number) + if block_given? + original_count = broadcasts_size(stream) + yield + new_count = broadcasts_size(stream) + actual_count = new_count - original_count + else + actual_count = broadcasts_size(stream) + end + + assert_equal number, actual_count, "#{number} broadcasts to #{stream} expected, but #{actual_count} were sent" + end + + # Asserts that no messages have been sent to the stream. + # + # def test_no_broadcasts + # assert_no_broadcasts 'messages' + # ActionCable.server.broadcast 'messages', { text: 'hi' } + # assert_broadcasts 'messages', 1 + # end + # + # If a block is passed, that block should not cause any message to be sent. + # + # def test_broadcasts_again + # assert_no_broadcasts 'messages' do + # # No job messages should be sent from this block + # end + # end + # + # Note: This assertion is simply a shortcut for: + # + # assert_broadcasts 'messages', 0, &block + # + def assert_no_broadcasts(stream, &block) + assert_broadcasts stream, 0, &block + end + + # Asserts that the specified message has been sent to the stream. + # + # def test_assert_transmited_message + # ActionCable.server.broadcast 'messages', text: 'hello' + # assert_broadcast_on('messages', text: 'hello') + # end + # + # If a block is passed, that block should cause a message with the specified data to be sent. + # + # def test_assert_broadcast_on_again + # assert_broadcast_on('messages', text: 'hello') do + # ActionCable.server.broadcast 'messages', text: 'hello' + # end + # end + # + def assert_broadcast_on(stream, data) + # Encode to JSON and back–we want to use this value to compare + # with decoded JSON. + # Comparing JSON strings doesn't work due to the order if the keys. + serialized_msg = + ActiveSupport::JSON.decode(ActiveSupport::JSON.encode(data)) + + new_messages = broadcasts(stream) + if block_given? + old_messages = new_messages + clear_messages(stream) + + yield + new_messages = broadcasts(stream) + clear_messages(stream) + + # Restore all sent messages + (old_messages + new_messages).each { |m| pubsub_adapter.broadcast(stream, m) } + end + + message = new_messages.find { |msg| ActiveSupport::JSON.decode(msg) == serialized_msg } + + assert message, "No messages sent with #{data} to #{stream}" + end + + def pubsub_adapter # :nodoc: + ActionCable.server.pubsub + end + + delegate :broadcasts, :clear_messages, to: :pubsub_adapter + + private + def broadcasts_size(channel) + broadcasts(channel).size + end + end +end diff --git a/actioncable/lib/rails/generators/channel/USAGE b/actioncable/lib/rails/generators/channel/USAGE index dd109fda80..ea9662436c 100644 --- a/actioncable/lib/rails/generators/channel/USAGE +++ b/actioncable/lib/rails/generators/channel/USAGE @@ -1,14 +1,12 @@ Description: ============ - Stubs out a new cable channel for the server (in Ruby) and client (in CoffeeScript). + Stubs out a new cable channel for the server (in Ruby) and client (in JavaScript). Pass the channel name, either CamelCased or under_scored, and an optional list of channel actions as arguments. - Note: Turn on the cable connection in app/assets/javascripts/cable.js after generating any channels. - Example: ======== rails generate channel Chat speak - creates a Chat channel class and CoffeeScript asset: + creates a Chat channel class and JavaScript asset: Channel: app/channels/chat_channel.rb - Assets: app/assets/javascripts/channels/chat.coffee + Assets: app/javascript/channels/chat_channel.js diff --git a/actioncable/lib/rails/generators/channel/channel_generator.rb b/actioncable/lib/rails/generators/channel/channel_generator.rb index 427eef1f55..ef51981e89 100644 --- a/actioncable/lib/rails/generators/channel/channel_generator.rb +++ b/actioncable/lib/rails/generators/channel/channel_generator.rb @@ -16,10 +16,11 @@ module Rails if options[:assets] if behavior == :invoke - template "assets/cable.js", "app/assets/javascripts/cable.js" + template "javascript/index.js", "app/javascript/channels/index.js" + template "javascript/consumer.js", "app/javascript/channels/consumer.js" end - js_template "assets/channel", File.join("app/assets/javascripts/channels", class_path, "#{file_name}") + js_template "javascript/channel", File.join("app/javascript/channels", class_path, "#{file_name}_channel") end generate_application_cable_files diff --git a/actioncable/lib/rails/generators/channel/templates/assets/channel.coffee.tt b/actioncable/lib/rails/generators/channel/templates/assets/channel.coffee.tt deleted file mode 100644 index 5467811aba..0000000000 --- a/actioncable/lib/rails/generators/channel/templates/assets/channel.coffee.tt +++ /dev/null @@ -1,14 +0,0 @@ -App.<%= class_name.underscore %> = App.cable.subscriptions.create "<%= class_name %>Channel", - connected: -> - # Called when the subscription is ready for use on the server - - disconnected: -> - # Called when the subscription has been terminated by the server - - received: (data) -> - # Called when there's incoming data on the websocket for this channel -<% actions.each do |action| -%> - - <%= action %>: -> - @perform '<%= action %>' -<% end -%> diff --git a/actioncable/lib/rails/generators/channel/templates/assets/channel.js.tt b/actioncable/lib/rails/generators/channel/templates/javascript/channel.js.tt index ab0e68b11a..33baaa5a22 100644 --- a/actioncable/lib/rails/generators/channel/templates/assets/channel.js.tt +++ b/actioncable/lib/rails/generators/channel/templates/javascript/channel.js.tt @@ -1,4 +1,6 @@ -App.<%= class_name.underscore %> = App.cable.subscriptions.create("<%= class_name %>Channel", { +import consumer from "./consumer" + +consumer.subscriptions.create("<%= class_name %>Channel", { connected: function() { // Called when the subscription is ready for use on the server }, diff --git a/actioncable/lib/rails/generators/channel/templates/assets/cable.js.tt b/actioncable/lib/rails/generators/channel/templates/javascript/consumer.js.tt index 739aa5f022..76ca3d0f2f 100644 --- a/actioncable/lib/rails/generators/channel/templates/assets/cable.js.tt +++ b/actioncable/lib/rails/generators/channel/templates/javascript/consumer.js.tt @@ -1,13 +1,6 @@ // Action Cable provides the framework to deal with WebSockets in Rails. // You can generate new channels where WebSocket features live using the `rails generate channel` command. -// -//= require action_cable -//= require_self -//= require_tree ./channels -(function() { - this.App || (this.App = {}); +import ActionCable from "actioncable" - App.cable = ActionCable.createConsumer(); - -}).call(this); +export default ActionCable.createConsumer() diff --git a/actioncable/lib/rails/generators/channel/templates/javascript/index.js.tt b/actioncable/lib/rails/generators/channel/templates/javascript/index.js.tt new file mode 100644 index 0000000000..0cfcf74919 --- /dev/null +++ b/actioncable/lib/rails/generators/channel/templates/javascript/index.js.tt @@ -0,0 +1,5 @@ +// Load all the channels within this directory and all subdirectories. +// Channel files must be named *_channel.js. + +const channels = require.context('.', true, /_channel\.js$/) +channels.keys().forEach(channels) diff --git a/actioncable/package.json b/actioncable/package.json index d9df46043d..5d5105a6d5 100644 --- a/actioncable/package.json +++ b/actioncable/package.json @@ -2,9 +2,9 @@ "name": "actioncable", "version": "6.0.0-alpha", "description": "WebSocket framework for Ruby on Rails.", - "main": "lib/assets/compiled/action_cable.js", + "main": "app/assets/javascripts/action_cable.js", "files": [ - "lib/assets/compiled/*.js" + "app/assets/javascripts/*.js" ], "repository": { "type": "git", @@ -20,5 +20,22 @@ "bugs": { "url": "https://github.com/rails/rails/issues" }, - "homepage": "http://rubyonrails.org/" + "homepage": "http://rubyonrails.org/", + "devDependencies": { + "babel-core": "^6.25.0", + "babel-plugin-external-helpers": "^6.22.0", + "babel-preset-env": "^1.6.0", + "eslint": "^4.3.0", + "eslint-plugin-import": "^2.7.0", + "rollup": "^0.58.2", + "rollup-plugin-babel": "^3.0.4", + "rollup-plugin-commonjs": "^9.1.0", + "rollup-plugin-node-resolve": "^3.3.0", + "rollup-plugin-uglify": "^3.0.0" + }, + "scripts": { + "prebuild": "yarn lint && bundle exec rake assets:codegen", + "build": "rollup --config rollup.config.js", + "lint": "eslint app/javascript" + } } diff --git a/actioncable/rollup.config.js b/actioncable/rollup.config.js new file mode 100644 index 0000000000..03046526aa --- /dev/null +++ b/actioncable/rollup.config.js @@ -0,0 +1,28 @@ +import resolve from "rollup-plugin-node-resolve" +import commonjs from "rollup-plugin-commonjs" +import babel from "rollup-plugin-babel" +import uglify from "rollup-plugin-uglify" + +const uglifyOptions = { + mangle: false, + compress: false, + output: { + beautify: true, + indent_level: 2 + } +} + +export default { + input: "app/javascript/action_cable/index.js", + output: { + file: "app/assets/javascripts/action_cable.js", + format: "umd", + name: "ActionCable" + }, + plugins: [ + resolve(), + commonjs(), + babel(), + uglify(uglifyOptions) + ] +} diff --git a/actioncable/test/channel/stream_test.rb b/actioncable/test/channel/stream_test.rb index bfe1f92946..9ad2213d47 100644 --- a/actioncable/test/channel/stream_test.rb +++ b/actioncable/test/channel/stream_test.rb @@ -26,16 +26,17 @@ module ActionCable::StreamTests transmit_subscription_confirmation end - private def pick_coder(coder) - case coder - when nil, "json" - ActiveSupport::JSON - when "custom" - DummyEncoder - when "none" - nil + private + def pick_coder(coder) + case coder + when nil, "json" + ActiveSupport::JSON + when "custom" + DummyEncoder + when "none" + nil + end end - end end module DummyEncoder @@ -192,7 +193,7 @@ module ActionCable::StreamTests end end - test "subscription confirmation should only be sent out once with muptiple stream_from" do + test "subscription confirmation should only be sent out once with multiple stream_from" do run_in_eventmachine do connection = open_connection expected = { "identifier" => { "channel" => MultiChatChannel.name }.to_json, "type" => "confirm_subscription" } diff --git a/actioncable/test/channel/test_case_test.rb b/actioncable/test/channel/test_case_test.rb new file mode 100644 index 0000000000..63d0d6207e --- /dev/null +++ b/actioncable/test/channel/test_case_test.rb @@ -0,0 +1,188 @@ +# frozen_string_literal: true + +require "test_helper" + +class TestTestChannel < ActionCable::Channel::Base +end + +class NonInferrableExplicitClassChannelTest < ActionCable::Channel::TestCase + tests TestTestChannel + + def test_set_channel_class_manual + assert_equal TestTestChannel, self.class.channel_class + end +end + +class NonInferrableSymbolNameChannelTest < ActionCable::Channel::TestCase + tests :test_test_channel + + def test_set_channel_class_manual_using_symbol + assert_equal TestTestChannel, self.class.channel_class + end +end + +class NonInferrableStringNameChannelTest < ActionCable::Channel::TestCase + tests "test_test_channel" + + def test_set_channel_class_manual_using_string + assert_equal TestTestChannel, self.class.channel_class + end +end + +class SubscriptionsTestChannel < ActionCable::Channel::Base +end + +class SubscriptionsTestChannelTest < ActionCable::Channel::TestCase + def setup + stub_connection + end + + def test_no_subscribe + assert_nil subscription + end + + def test_subscribe + subscribe + + assert subscription.confirmed? + assert_not subscription.rejected? + assert_equal 1, connection.transmissions.size + assert_equal ActionCable::INTERNAL[:message_types][:confirmation], + connection.transmissions.last["type"] + end +end + +class StubConnectionTest < ActionCable::Channel::TestCase + tests SubscriptionsTestChannel + + def test_connection_identifiers + stub_connection username: "John", admin: true + + subscribe + + assert_equal "John", subscription.username + assert subscription.admin + end +end + +class RejectionTestChannel < ActionCable::Channel::Base + def subscribed + reject + end +end + +class RejectionTestChannelTest < ActionCable::Channel::TestCase + def test_rejection + subscribe + + assert_not subscription.confirmed? + assert subscription.rejected? + assert_equal 1, connection.transmissions.size + assert_equal ActionCable::INTERNAL[:message_types][:rejection], + connection.transmissions.last["type"] + end +end + +class StreamsTestChannel < ActionCable::Channel::Base + def subscribed + stream_from "test_#{params[:id] || 0}" + end +end + +class StreamsTestChannelTest < ActionCable::Channel::TestCase + def test_stream_without_params + subscribe + + assert_equal "test_0", streams.last + end + + def test_stream_with_params + subscribe id: 42 + + assert_equal "test_42", streams.last + end +end + +class PerformTestChannel < ActionCable::Channel::Base + def echo(data) + data.delete("action") + transmit data + end + + def ping + transmit type: "pong" + end +end + +class PerformTestChannelTest < ActionCable::Channel::TestCase + def setup + stub_connection user_id: 2016 + subscribe id: 5 + end + + def test_perform_with_params + perform :echo, text: "You are man!" + + assert_equal({ "text" => "You are man!" }, transmissions.last) + end + + def test_perform_and_transmit + perform :ping + + assert_equal "pong", transmissions.last["type"] + end +end + +class PerformUnsubscribedTestChannelTest < ActionCable::Channel::TestCase + tests PerformTestChannel + + def test_perform_when_unsubscribed + assert_raises do + perform :echo + end + end +end + +class BroadcastsTestChannel < ActionCable::Channel::Base + def broadcast(data) + ActionCable.server.broadcast( + "broadcast_#{params[:id]}", + text: data["message"], user_id: user_id + ) + end + + def broadcast_to_user(data) + user = User.new user_id + + self.class.broadcast_to user, text: data["message"] + end +end + +class BroadcastsTestChannelTest < ActionCable::Channel::TestCase + def setup + stub_connection user_id: 2017 + subscribe id: 5 + end + + def test_broadcast_matchers_included + assert_broadcast_on("broadcast_5", user_id: 2017, text: "SOS") do + perform :broadcast, message: "SOS" + end + end + + def test_broadcast_to_object + user = User.new(2017) + + assert_broadcasts(user, 1) do + perform :broadcast_to_user, text: "SOS" + end + end + + def test_broadcast_to_object_with_data + user = User.new(2017) + + assert_broadcast_on(user, text: "SOS") do + perform :broadcast_to_user, message: "SOS" + end + end +end diff --git a/actioncable/test/subscription_adapter/redis_test.rb b/actioncable/test/subscription_adapter/redis_test.rb index 3dc995331a..ac2d8ef724 100644 --- a/actioncable/test/subscription_adapter/redis_test.rb +++ b/actioncable/test/subscription_adapter/redis_test.rb @@ -30,14 +30,22 @@ class RedisAdapterTest::AlternateConfiguration < RedisAdapterTest end class RedisAdapterTest::Connector < ActionCable::TestCase - test "slices url, host, port, db, and password from config" do - config = { url: 1, host: 2, port: 3, db: 4, password: 5 } + test "slices url, host, port, db, password and id from config" do + config = { url: 1, host: 2, port: 3, db: 4, password: 5, id: "Some custom ID" } assert_called_with ::Redis, :new, [ config ] do connect config.merge(other: "unrelated", stuff: "here") end end + test "adds default id if it is not specified" do + config = { url: 1, host: 2, port: 3, db: 4, password: 5, id: "ActionCable-PID-#{$$}" } + + assert_called_with ::Redis, :new, [ config ] do + connect config.except(:id) + end + end + def connect(config) ActionCable::SubscriptionAdapter::Redis.redis_connector.call(config) end diff --git a/actioncable/test/subscription_adapter/test_adapter_test.rb b/actioncable/test/subscription_adapter/test_adapter_test.rb new file mode 100644 index 0000000000..3fe07adb4a --- /dev/null +++ b/actioncable/test/subscription_adapter/test_adapter_test.rb @@ -0,0 +1,47 @@ +# frozen_string_literal: true + +require "test_helper" +require_relative "common" + +class ActionCable::SubscriptionAdapter::TestTest < ActionCable::TestCase + include CommonSubscriptionAdapterTest + + def setup + super + + @tx_adapter.shutdown + @tx_adapter = @rx_adapter + end + + def cable_config + { adapter: "test" } + end + + test "#broadcast stores messages for streams" do + @tx_adapter.broadcast("channel", "payload") + @tx_adapter.broadcast("channel2", "payload2") + + assert_equal ["payload"], @tx_adapter.broadcasts("channel") + assert_equal ["payload2"], @tx_adapter.broadcasts("channel2") + end + + test "#clear_messages deletes recorded broadcasts for the channel" do + @tx_adapter.broadcast("channel", "payload") + @tx_adapter.broadcast("channel2", "payload2") + + @tx_adapter.clear_messages("channel") + + assert_equal [], @tx_adapter.broadcasts("channel") + assert_equal ["payload2"], @tx_adapter.broadcasts("channel2") + end + + test "#clear deletes all recorded broadcasts" do + @tx_adapter.broadcast("channel", "payload") + @tx_adapter.broadcast("channel2", "payload2") + + @tx_adapter.clear + + assert_equal [], @tx_adapter.broadcasts("channel") + assert_equal [], @tx_adapter.broadcasts("channel2") + end +end diff --git a/actioncable/test/test_helper.rb b/actioncable/test/test_helper.rb index ac7881c950..c924f1e475 100644 --- a/actioncable/test/test_helper.rb +++ b/actioncable/test/test_helper.rb @@ -15,6 +15,10 @@ end # Require all the stubs and models Dir[File.expand_path("stubs/*.rb", __dir__)].each { |file| require file } +# Set test adapter and logger +ActionCable.server.config.cable = { "adapter" => "test" } +ActionCable.server.config.logger = Logger.new(nil) + class ActionCable::TestCase < ActiveSupport::TestCase include ActiveSupport::Testing::MethodCallAssertions diff --git a/actioncable/test/test_helper_test.rb b/actioncable/test/test_helper_test.rb new file mode 100644 index 0000000000..90e3dbf01f --- /dev/null +++ b/actioncable/test/test_helper_test.rb @@ -0,0 +1,116 @@ +# frozen_string_literal: true + +require "test_helper" + +class BroadcastChannel < ActionCable::Channel::Base +end + +class TransmissionsTest < ActionCable::TestCase + def test_assert_broadcasts + assert_nothing_raised do + assert_broadcasts("test", 1) do + ActionCable.server.broadcast "test", "message" + end + end + end + + def test_assert_broadcasts_with_no_block + assert_nothing_raised do + ActionCable.server.broadcast "test", "message" + assert_broadcasts "test", 1 + end + + assert_nothing_raised do + ActionCable.server.broadcast "test", "message 2" + ActionCable.server.broadcast "test", "message 3" + assert_broadcasts "test", 3 + end + end + + def test_assert_no_broadcasts_with_no_block + assert_nothing_raised do + assert_no_broadcasts "test" + end + end + + def test_assert_no_broadcasts + assert_nothing_raised do + assert_no_broadcasts("test") do + ActionCable.server.broadcast "test2", "message" + end + end + end + + def test_assert_broadcasts_message_too_few_sent + ActionCable.server.broadcast "test", "hello" + error = assert_raises Minitest::Assertion do + assert_broadcasts("test", 2) do + ActionCable.server.broadcast "test", "world" + end + end + + assert_match(/2 .* but 1/, error.message) + end + + def test_assert_broadcasts_message_too_many_sent + error = assert_raises Minitest::Assertion do + assert_broadcasts("test", 1) do + ActionCable.server.broadcast "test", "hello" + ActionCable.server.broadcast "test", "world" + end + end + + assert_match(/1 .* but 2/, error.message) + end + + def test_assert_no_broadcasts_failure + error = assert_raises Minitest::Assertion do + assert_no_broadcasts "test" do + ActionCable.server.broadcast "test", "hello" + end + end + + assert_match(/0 .* but 1/, error.message) + end +end + +class TransmitedDataTest < ActionCable::TestCase + include ActionCable::TestHelper + + def test_assert_broadcast_on + assert_nothing_raised do + assert_broadcast_on("test", "message") do + ActionCable.server.broadcast "test", "message" + end + end + end + + def test_assert_broadcast_on_with_hash + assert_nothing_raised do + assert_broadcast_on("test", text: "hello") do + ActionCable.server.broadcast "test", text: "hello" + end + end + end + + def test_assert_broadcast_on_with_no_block + assert_nothing_raised do + ActionCable.server.broadcast "test", "hello" + assert_broadcast_on "test", "hello" + end + + assert_nothing_raised do + ActionCable.server.broadcast "test", "world" + assert_broadcast_on "test", "world" + end + end + + def test_assert_broadcast_on_message + ActionCable.server.broadcast "test", "hello" + error = assert_raises Minitest::Assertion do + assert_broadcast_on("test", "world") + end + + assert_match(/No messages sent/, error.message) + end +end diff --git a/actioncable/yarn.lock b/actioncable/yarn.lock new file mode 100644 index 0000000000..8b4fcaebd6 --- /dev/null +++ b/actioncable/yarn.lock @@ -0,0 +1,1928 @@ +# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY. +# yarn lockfile v1 + + +"@types/estree@0.0.38": + version "0.0.38" + resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.38.tgz#c1be40aa933723c608820a99a373a16d215a1ca2" + +"@types/node@*": + version "10.11.6" + resolved "https://registry.yarnpkg.com/@types/node/-/node-10.11.6.tgz#ce5690df6cd917a9178439a1013e39a7e565c46e" + +acorn-jsx@^3.0.0: + version "3.0.1" + resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b" + dependencies: + acorn "^3.0.4" + +acorn@^3.0.4: + version "3.3.0" + resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a" + +acorn@^5.2.1: + version "5.3.0" + resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.3.0.tgz#7446d39459c54fb49a80e6ee6478149b940ec822" + +ajv-keywords@^2.1.0: + version "2.1.1" + resolved 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