From 7b83c00861165c7174ea247544bc5a7fdcb66aa3 Mon Sep 17 00:00:00 2001 From: sviik Date: Fri, 8 Dec 2023 13:48:58 +0200 Subject: [PATCH 1/2] Prune access tokens in "connected to" logs ENG-484 When a connection is opened, then a message is logged with endpoint URL which contains access token. Prune the access token part of the URL. --- assets/js/phoenix/socket.js | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/assets/js/phoenix/socket.js b/assets/js/phoenix/socket.js index 48de25649d..32e4b030db 100644 --- a/assets/js/phoenix/socket.js +++ b/assets/js/phoenix/socket.js @@ -325,7 +325,11 @@ export default class Socket { } onConnOpen(){ - if(this.hasLogger()) this.log("transport", `connected to ${this.endPointURL()}`) + if(this.hasLogger()) { + const endPointURL = this.endPointURL() + const prunedURL = endPointURL.replace(/access_token=([^&#/]+)/, 'access_token=-pruned-') + this.log("transport", `connected to ${prunedURL}`) + } this.closeWasClean = false this.establishedConnections++ this.flushSendBuffer() From 9d2d91e7bc039285e381f68ee870120a4bab968b Mon Sep 17 00:00:00 2001 From: sviik Date: Fri, 8 Dec 2023 13:51:49 +0200 Subject: [PATCH 2/2] Build assets Build assets with `mix assets.build`. --- priv/static/phoenix.cjs.js | 7 +++++-- priv/static/phoenix.cjs.js.map | 4 ++-- priv/static/phoenix.js | 7 +++++-- priv/static/phoenix.min.js | 2 +- priv/static/phoenix.mjs | 7 +++++-- priv/static/phoenix.mjs.map | 4 ++-- 6 files changed, 20 insertions(+), 11 deletions(-) diff --git a/priv/static/phoenix.cjs.js b/priv/static/phoenix.cjs.js index a944c6fd6a..7ce82a57d8 100644 --- a/priv/static/phoenix.cjs.js +++ b/priv/static/phoenix.cjs.js @@ -1030,8 +1030,11 @@ var Socket = class { clearTimeout(this.heartbeatTimeoutTimer); } onConnOpen() { - if (this.hasLogger()) - this.log("transport", `connected to ${this.endPointURL()}`); + if (this.hasLogger()) { + const endPointURL = this.endPointURL(); + const prunedURL = endPointURL.replace(/access_token=([^&#/]+)/, "access_token=-pruned-"); + this.log("transport", `connected to ${prunedURL}`); + } this.closeWasClean = false; this.establishedConnections++; this.flushSendBuffer(); diff --git a/priv/static/phoenix.cjs.js.map b/priv/static/phoenix.cjs.js.map index 4ab42ec63d..11ed12eae3 100644 --- a/priv/static/phoenix.cjs.js.map +++ b/priv/static/phoenix.cjs.js.map @@ -1,7 +1,7 @@ { "version": 3, "sources": ["../../assets/js/phoenix/index.js", "../../assets/js/phoenix/utils.js", "../../assets/js/phoenix/constants.js", "../../assets/js/phoenix/push.js", "../../assets/js/phoenix/timer.js", "../../assets/js/phoenix/channel.js", "../../assets/js/phoenix/ajax.js", "../../assets/js/phoenix/longpoll.js", "../../assets/js/phoenix/presence.js", "../../assets/js/phoenix/serializer.js", "../../assets/js/phoenix/socket.js"], - "sourcesContent": ["/**\n * Phoenix Channels JavaScript client\n *\n * ## Socket Connection\n *\n * A single connection is established to the server and\n * channels are multiplexed over the connection.\n * Connect to the server using the `Socket` class:\n *\n * ```javascript\n * let socket = new Socket(\"/socket\", {params: {userToken: \"123\"}})\n * socket.connect()\n * ```\n *\n * The `Socket` constructor takes the mount point of the socket,\n * the authentication params, as well as options that can be found in\n * the Socket docs, such as configuring the `LongPoll` transport, and\n * heartbeat.\n *\n * ## Channels\n *\n * Channels are isolated, concurrent processes on the server that\n * subscribe to topics and broker events between the client and server.\n * To join a channel, you must provide the topic, and channel params for\n * authorization. Here's an example chat room example where `\"new_msg\"`\n * events are listened for, messages are pushed to the server, and\n * the channel is joined with ok/error/timeout matches:\n *\n * ```javascript\n * let channel = socket.channel(\"room:123\", {token: roomToken})\n * channel.on(\"new_msg\", msg => console.log(\"Got message\", msg) )\n * $input.onEnter( e => {\n * channel.push(\"new_msg\", {body: e.target.val}, 10000)\n * .receive(\"ok\", (msg) => console.log(\"created message\", msg) )\n * .receive(\"error\", (reasons) => console.log(\"create failed\", reasons) )\n * .receive(\"timeout\", () => console.log(\"Networking issue...\") )\n * })\n *\n * channel.join()\n * .receive(\"ok\", ({messages}) => console.log(\"catching up\", messages) )\n * .receive(\"error\", ({reason}) => console.log(\"failed join\", reason) )\n * .receive(\"timeout\", () => console.log(\"Networking issue. Still waiting...\"))\n *```\n *\n * ## Joining\n *\n * Creating a channel with `socket.channel(topic, params)`, binds the params to\n * `channel.params`, which are sent up on `channel.join()`.\n * Subsequent rejoins will send up the modified params for\n * updating authorization params, or passing up last_message_id information.\n * Successful joins receive an \"ok\" status, while unsuccessful joins\n * receive \"error\".\n *\n * With the default serializers and WebSocket transport, JSON text frames are\n * used for pushing a JSON object literal. If an `ArrayBuffer` instance is provided,\n * binary encoding will be used and the message will be sent with the binary\n * opcode.\n *\n * *Note*: binary messages are only supported on the WebSocket transport.\n *\n * ## Duplicate Join Subscriptions\n *\n * While the client may join any number of topics on any number of channels,\n * the client may only hold a single subscription for each unique topic at any\n * given time. When attempting to create a duplicate subscription,\n * the server will close the existing channel, log a warning, and\n * spawn a new channel for the topic. The client will have their\n * `channel.onClose` callbacks fired for the existing channel, and the new\n * channel join will have its receive hooks processed as normal.\n *\n * ## Pushing Messages\n *\n * From the previous example, we can see that pushing messages to the server\n * can be done with `channel.push(eventName, payload)` and we can optionally\n * receive responses from the push. Additionally, we can use\n * `receive(\"timeout\", callback)` to abort waiting for our other `receive` hooks\n * and take action after some period of waiting. The default timeout is 10000ms.\n *\n *\n * ## Socket Hooks\n *\n * Lifecycle events of the multiplexed connection can be hooked into via\n * `socket.onError()` and `socket.onClose()` events, ie:\n *\n * ```javascript\n * socket.onError( () => console.log(\"there was an error with the connection!\") )\n * socket.onClose( () => console.log(\"the connection dropped\") )\n * ```\n *\n *\n * ## Channel Hooks\n *\n * For each joined channel, you can bind to `onError` and `onClose` events\n * to monitor the channel lifecycle, ie:\n *\n * ```javascript\n * channel.onError( () => console.log(\"there was an error!\") )\n * channel.onClose( () => console.log(\"the channel has gone away gracefully\") )\n * ```\n *\n * ### onError hooks\n *\n * `onError` hooks are invoked if the socket connection drops, or the channel\n * crashes on the server. In either case, a channel rejoin is attempted\n * automatically in an exponential backoff manner.\n *\n * ### onClose hooks\n *\n * `onClose` hooks are invoked only in two cases. 1) the channel explicitly\n * closed on the server, or 2). The client explicitly closed, by calling\n * `channel.leave()`\n *\n *\n * ## Presence\n *\n * The `Presence` object provides features for syncing presence information\n * from the server with the client and handling presences joining and leaving.\n *\n * ### Syncing state from the server\n *\n * To sync presence state from the server, first instantiate an object and\n * pass your channel in to track lifecycle events:\n *\n * ```javascript\n * let channel = socket.channel(\"some:topic\")\n * let presence = new Presence(channel)\n * ```\n *\n * Next, use the `presence.onSync` callback to react to state changes\n * from the server. For example, to render the list of users every time\n * the list changes, you could write:\n *\n * ```javascript\n * presence.onSync(() => {\n * myRenderUsersFunction(presence.list())\n * })\n * ```\n *\n * ### Listing Presences\n *\n * `presence.list` is used to return a list of presence information\n * based on the local state of metadata. By default, all presence\n * metadata is returned, but a `listBy` function can be supplied to\n * allow the client to select which metadata to use for a given presence.\n * For example, you may have a user online from different devices with\n * a metadata status of \"online\", but they have set themselves to \"away\"\n * on another device. In this case, the app may choose to use the \"away\"\n * status for what appears on the UI. The example below defines a `listBy`\n * function which prioritizes the first metadata which was registered for\n * each user. This could be the first tab they opened, or the first device\n * they came online from:\n *\n * ```javascript\n * let listBy = (id, {metas: [first, ...rest]}) => {\n * first.count = rest.length + 1 // count of this user's presences\n * first.id = id\n * return first\n * }\n * let onlineUsers = presence.list(listBy)\n * ```\n *\n * ### Handling individual presence join and leave events\n *\n * The `presence.onChange` callback can be used to react to individual\n * presences joining and leaving the app. onChange can only be used when\n * deprecated onJoin and onLeave functions are not used.\n * For example:\n *\n * ```javascript\n * let presence = new Presence(channel)\n *\n * // detect if user has joined for the 1st time or from another tab/device\n * presence.onChange((id, oldPresence, newPresence) => {\n * if(!oldPresence){\n * console.log(\"user has entered for the first time\", newPresence)\n * } else if (newPresence.metas.length === 0){\n * console.log(\"user has left from all devices\", newPresence)\n * } else {\n * console.log(\"old presence\", oldPresence\");\n * console.log(\"new presence\", newPresence\");\n * }\n * })\n *\n * // receive presence data from server\n * presence.onSync(() => {\n * displayUsers(presence.list())\n * })\n * ```\n * @module phoenix\n */\n\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Presence from \"./presence\"\nimport Serializer from \"./serializer\"\nimport Socket from \"./socket\"\n\nexport {\n Channel,\n LongPoll,\n Presence,\n Serializer,\n Socket\n}\n", "// wraps value in closure or returns closure\nexport let closure = (value) => {\n if(typeof value === \"function\"){\n return value\n } else {\n let closure = function (){ return value }\n return closure\n }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n closed: \"closed\",\n errored: \"errored\",\n joined: \"joined\",\n joining: \"joining\",\n leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n close: \"phx_close\",\n error: \"phx_error\",\n join: \"phx_join\",\n reply: \"phx_reply\",\n leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n longpoll: \"longpoll\",\n websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n constructor(channel, event, payload, timeout){\n this.channel = channel\n this.event = event\n this.payload = payload || function (){ return {} }\n this.receivedResp = null\n this.timeout = timeout\n this.timeoutTimer = null\n this.recHooks = []\n this.sent = false\n }\n\n /**\n *\n * @param {number} timeout\n */\n resend(timeout){\n this.timeout = timeout\n this.reset()\n this.send()\n }\n\n /**\n *\n */\n send(){\n if(this.hasReceived(\"timeout\")){ return }\n this.startTimeout()\n this.sent = true\n this.channel.socket.push({\n topic: this.channel.topic,\n event: this.event,\n payload: this.payload(),\n ref: this.ref,\n join_ref: this.channel.joinRef()\n })\n }\n\n /**\n *\n * @param {*} status\n * @param {*} callback\n */\n receive(status, callback){\n if(this.hasReceived(status)){\n callback(this.receivedResp.response)\n }\n\n this.recHooks.push({status, callback})\n return this\n }\n\n /**\n * @private\n */\n reset(){\n this.cancelRefEvent()\n this.ref = null\n this.refEvent = null\n this.receivedResp = null\n this.sent = false\n }\n\n /**\n * @private\n */\n matchReceive({status, response, _ref}){\n this.recHooks.filter(h => h.status === status)\n .forEach(h => h.callback(response))\n }\n\n /**\n * @private\n */\n cancelRefEvent(){\n if(!this.refEvent){ return }\n this.channel.off(this.refEvent)\n }\n\n /**\n * @private\n */\n cancelTimeout(){\n clearTimeout(this.timeoutTimer)\n this.timeoutTimer = null\n }\n\n /**\n * @private\n */\n startTimeout(){\n if(this.timeoutTimer){ this.cancelTimeout() }\n this.ref = this.channel.socket.makeRef()\n this.refEvent = this.channel.replyEventName(this.ref)\n\n this.channel.on(this.refEvent, payload => {\n this.cancelRefEvent()\n this.cancelTimeout()\n this.receivedResp = payload\n this.matchReceive(payload)\n })\n\n this.timeoutTimer = setTimeout(() => {\n this.trigger(\"timeout\", {})\n }, this.timeout)\n }\n\n /**\n * @private\n */\n hasReceived(status){\n return this.receivedResp && this.receivedResp.status === status\n }\n\n /**\n * @private\n */\n trigger(status, response){\n this.channel.trigger(this.refEvent, {status, response})\n }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n * return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n constructor(callback, timerCalc){\n this.callback = callback\n this.timerCalc = timerCalc\n this.timer = null\n this.tries = 0\n }\n\n reset(){\n this.tries = 0\n clearTimeout(this.timer)\n }\n\n /**\n * Cancels any previous scheduleTimeout and schedules callback\n */\n scheduleTimeout(){\n clearTimeout(this.timer)\n\n this.timer = setTimeout(() => {\n this.tries = this.tries + 1\n this.callback()\n }, this.timerCalc(this.tries + 1))\n }\n}\n", "import {closure} from \"./utils\"\nimport {\n CHANNEL_EVENTS,\n CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n constructor(topic, params, socket){\n this.state = CHANNEL_STATES.closed\n this.topic = topic\n this.params = closure(params || {})\n this.socket = socket\n this.bindings = []\n this.bindingRef = 0\n this.timeout = this.socket.timeout\n this.joinedOnce = false\n this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n this.pushBuffer = []\n this.stateChangeRefs = []\n\n this.rejoinTimer = new Timer(() => {\n if(this.socket.isConnected()){ this.rejoin() }\n }, this.socket.rejoinAfterMs)\n this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n this.stateChangeRefs.push(this.socket.onOpen(() => {\n this.rejoinTimer.reset()\n if(this.isErrored()){ this.rejoin() }\n })\n )\n this.joinPush.receive(\"ok\", () => {\n this.state = CHANNEL_STATES.joined\n this.rejoinTimer.reset()\n this.pushBuffer.forEach(pushEvent => pushEvent.send())\n this.pushBuffer = []\n })\n this.joinPush.receive(\"error\", () => {\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.onClose(() => {\n this.rejoinTimer.reset()\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n this.state = CHANNEL_STATES.closed\n this.socket.remove(this)\n })\n this.onError(reason => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n if(this.isJoining()){ this.joinPush.reset() }\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.joinPush.receive(\"timeout\", () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n leavePush.send()\n this.state = CHANNEL_STATES.errored\n this.joinPush.reset()\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n this.trigger(this.replyEventName(ref), payload)\n })\n }\n\n /**\n * Join the channel\n * @param {integer} timeout\n * @returns {Push}\n */\n join(timeout = this.timeout){\n if(this.joinedOnce){\n throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n } else {\n this.timeout = timeout\n this.joinedOnce = true\n this.rejoin()\n return this.joinPush\n }\n }\n\n /**\n * Hook into channel close\n * @param {Function} callback\n */\n onClose(callback){\n this.on(CHANNEL_EVENTS.close, callback)\n }\n\n /**\n * Hook into channel errors\n * @param {Function} callback\n */\n onError(callback){\n return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n }\n\n /**\n * Subscribes on channel events\n *\n * Subscription returns a ref counter, which can be used later to\n * unsubscribe the exact event listener\n *\n * @example\n * const ref1 = channel.on(\"event\", do_stuff)\n * const ref2 = channel.on(\"event\", do_other_stuff)\n * channel.off(\"event\", ref1)\n * // Since unsubscription, do_stuff won't fire,\n * // while do_other_stuff will keep firing on the \"event\"\n *\n * @param {string} event\n * @param {Function} callback\n * @returns {integer} ref\n */\n on(event, callback){\n let ref = this.bindingRef++\n this.bindings.push({event, ref, callback})\n return ref\n }\n\n /**\n * Unsubscribes off of channel events\n *\n * Use the ref returned from a channel.on() to unsubscribe one\n * handler, or pass nothing for the ref to unsubscribe all\n * handlers for the given event.\n *\n * @example\n * // Unsubscribe the do_stuff handler\n * const ref1 = channel.on(\"event\", do_stuff)\n * channel.off(\"event\", ref1)\n *\n * // Unsubscribe all handlers from event\n * channel.off(\"event\")\n *\n * @param {string} event\n * @param {integer} ref\n */\n off(event, ref){\n this.bindings = this.bindings.filter((bind) => {\n return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n })\n }\n\n /**\n * @private\n */\n canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n /**\n * Sends a message `event` to phoenix with the payload `payload`.\n * Phoenix receives this in the `handle_in(event, payload, socket)`\n * function. if phoenix replies or it times out (default 10000ms),\n * then optionally the reply can be received.\n *\n * @example\n * channel.push(\"event\")\n * .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n * .receive(\"error\", err => console.log(\"phoenix errored\", err))\n * .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n * @param {string} event\n * @param {Object} payload\n * @param {number} [timeout]\n * @returns {Push}\n */\n push(event, payload, timeout = this.timeout){\n payload = payload || {}\n if(!this.joinedOnce){\n throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n }\n let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n if(this.canPush()){\n pushEvent.send()\n } else {\n pushEvent.startTimeout()\n this.pushBuffer.push(pushEvent)\n }\n\n return pushEvent\n }\n\n /** Leaves the channel\n *\n * Unsubscribes from server events, and\n * instructs channel to terminate on server\n *\n * Triggers onClose() hooks\n *\n * To receive leave acknowledgements, use the `receive`\n * hook to bind to the server ack, ie:\n *\n * @example\n * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n *\n * @param {integer} timeout\n * @returns {Push}\n */\n leave(timeout = this.timeout){\n this.rejoinTimer.reset()\n this.joinPush.cancelTimeout()\n\n this.state = CHANNEL_STATES.leaving\n let onClose = () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n this.trigger(CHANNEL_EVENTS.close, \"leave\")\n }\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n leavePush.receive(\"ok\", () => onClose())\n .receive(\"timeout\", () => onClose())\n leavePush.send()\n if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n return leavePush\n }\n\n /**\n * Overridable message hook\n *\n * Receives all events for specialized message handling\n * before dispatching to the channel callbacks.\n *\n * Must return the payload, modified or unmodified\n * @param {string} event\n * @param {Object} payload\n * @param {integer} ref\n * @returns {Object}\n */\n onMessage(_event, payload, _ref){ return payload }\n\n /**\n * @private\n */\n isMember(topic, event, payload, joinRef){\n if(this.topic !== topic){ return false }\n\n if(joinRef && joinRef !== this.joinRef()){\n if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n return false\n } else {\n return true\n }\n }\n\n /**\n * @private\n */\n joinRef(){ return this.joinPush.ref }\n\n /**\n * @private\n */\n rejoin(timeout = this.timeout){\n if(this.isLeaving()){ return }\n this.socket.leaveOpenTopic(this.topic)\n this.state = CHANNEL_STATES.joining\n this.joinPush.resend(timeout)\n }\n\n /**\n * @private\n */\n trigger(event, payload, ref, joinRef){\n let handledPayload = this.onMessage(event, payload, ref, joinRef)\n if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n for(let i = 0; i < eventBindings.length; i++){\n let bind = eventBindings[i]\n bind.callback(handledPayload, ref, joinRef || this.joinRef())\n }\n }\n\n /**\n * @private\n */\n replyEventName(ref){ return `chan_reply_${ref}` }\n\n /**\n * @private\n */\n isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n /**\n * @private\n */\n isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n /**\n * @private\n */\n isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n /**\n * @private\n */\n isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n /**\n * @private\n */\n isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n global,\n XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n if(global.XDomainRequest){\n let req = new global.XDomainRequest() // IE8, IE9\n return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n } else {\n let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n }\n }\n\n static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n req.timeout = timeout\n req.open(method, endPoint)\n req.onload = () => {\n let response = this.parseJSON(req.responseText)\n callback && callback(response)\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n // Work around bug in IE9 that requires an attached onprogress handler\n req.onprogress = () => { }\n\n req.send(body)\n return req\n }\n\n static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n req.open(method, endPoint, true)\n req.timeout = timeout\n req.setRequestHeader(\"Content-Type\", accept)\n req.onerror = () => callback && callback(null)\n req.onreadystatechange = () => {\n if(req.readyState === XHR_STATES.complete && callback){\n let response = this.parseJSON(req.responseText)\n callback(response)\n }\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n req.send(body)\n return req\n }\n\n static parseJSON(resp){\n if(!resp || resp === \"\"){ return null }\n\n try {\n return JSON.parse(resp)\n } catch (e){\n console && console.log(\"failed to parse JSON response\", resp)\n return null\n }\n }\n\n static serialize(obj, parentKey){\n let queryStr = []\n for(var key in obj){\n if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n let paramKey = parentKey ? `${parentKey}[${key}]` : key\n let paramVal = obj[key]\n if(typeof paramVal === \"object\"){\n queryStr.push(this.serialize(paramVal, paramKey))\n } else {\n queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n }\n }\n return queryStr.join(\"&\")\n }\n\n static appendParams(url, params){\n if(Object.keys(params).length === 0){ return url }\n\n let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n return `${url}${prefix}${this.serialize(params)}`\n }\n}\n", "import {\n SOCKET_STATES,\n TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nexport default class LongPoll {\n\n constructor(endPoint){\n this.endPoint = null\n this.token = null\n this.skipHeartbeat = true\n this.reqs = new Set()\n this.onopen = function (){ } // noop\n this.onerror = function (){ } // noop\n this.onmessage = function (){ } // noop\n this.onclose = function (){ } // noop\n this.pollEndpoint = this.normalizeEndpoint(endPoint)\n this.readyState = SOCKET_STATES.connecting\n this.poll()\n }\n\n normalizeEndpoint(endPoint){\n return (endPoint\n .replace(\"ws://\", \"http://\")\n .replace(\"wss://\", \"https://\")\n .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n }\n\n endpointURL(){\n return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n }\n\n closeAndRetry(code, reason, wasClean){\n this.close(code, reason, wasClean)\n this.readyState = SOCKET_STATES.connecting\n }\n\n ontimeout(){\n this.onerror(\"timeout\")\n this.closeAndRetry(1005, \"timeout\", false)\n }\n\n isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n poll(){\n this.ajax(\"GET\", null, () => this.ontimeout(), resp => {\n if(resp){\n var {status, token, messages} = resp\n this.token = token\n } else {\n status = 0\n }\n\n switch(status){\n case 200:\n messages.forEach(msg => {\n // Tasks are what things like event handlers, setTimeout callbacks,\n // promise resolves and more are run within.\n // In modern browsers, there are two different kinds of tasks,\n // microtasks and macrotasks.\n // Microtasks are mainly used for Promises, while macrotasks are\n // used for everything else.\n // Microtasks always have priority over macrotasks. If the JS engine\n // is looking for a task to run, it will always try to empty the\n // microtask queue before attempting to run anything from the\n // macrotask queue.\n //\n // For the WebSocket transport, messages always arrive in their own\n // event. This means that if any promises are resolved from within,\n // their callbacks will always finish execution by the time the\n // next message event handler is run.\n //\n // In order to emulate this behaviour, we need to make sure each\n // onmessage handler is run within it's own macrotask.\n setTimeout(() => this.onmessage({data: msg}), 0)\n })\n this.poll()\n break\n case 204:\n this.poll()\n break\n case 410:\n this.readyState = SOCKET_STATES.open\n this.onopen({})\n this.poll()\n break\n case 403:\n this.onerror(403)\n this.close(1008, \"forbidden\", false)\n break\n case 0:\n case 500:\n this.onerror(500)\n this.closeAndRetry(1011, \"internal server error\", 500)\n break\n default:\n this.onerror(status)\n this.close()\n break\n }\n })\n }\n\n send(body){\n this.ajax(\"POST\", body, () => this.onerror(\"timeout\"), resp => {\n if(!resp || resp.status !== 200){\n this.onerror(resp && resp.status)\n this.closeAndRetry(1011, \"internal server error\", false)\n }\n })\n }\n\n close(code, reason, wasClean){\n for(let req of this.reqs){ req.abort() }\n this.readyState = SOCKET_STATES.closed\n let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n if(typeof(CloseEvent) !== \"undefined\"){\n this.onclose(new CloseEvent(\"close\", opts))\n } else {\n this.onclose(opts)\n }\n }\n\n ajax(method, body, onCallerTimeout, callback){\n let req\n let ontimeout = () => {\n this.reqs.delete(req)\n onCallerTimeout()\n }\n req = Ajax.request(method, this.endpointURL(), \"application/json\", body, this.timeout, ontimeout, resp => {\n this.reqs.delete(req)\n if(this.isActive()){ callback(resp) }\n })\n this.reqs.add(req)\n }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n * for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n constructor(channel, opts = {}){\n let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n this.state = {}\n this.pendingDiffs = []\n this.channel = channel\n this.joinRef = null\n this.caller = {\n onChange: null,\n onJoin: null,\n onLeave: null,\n onSync: function (){ }\n }\n\n this.channel.on(events.state, newState => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n this.joinRef = this.channel.joinRef()\n if (onJoin || onLeave) {\n Presence.syncState(this.state, newState, onJoin, onLeave)\n } else {\n Presence.synchronizeState(this.state, newState, onChange)\n }\n\n this.pendingDiffs.forEach(diff => {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n })\n this.pendingDiffs = []\n onSync()\n })\n\n this.channel.on(events.diff, diff => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n if(this.inPendingSyncState()){\n this.pendingDiffs.push(diff)\n } else {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n onSync()\n }\n })\n }\n\n // @deprecated Please use onChange instead\n onJoin(callback){\n console && console.warn && console.warn('onJoin is deprecated, use onChange instead')\n this.caller.onJoin = callback\n }\n\n // @deprecated Please use onChange instead\n onLeave(callback){\n console && console.warn && console.warn('onLeave is deprecated, use onChange instead')\n this.caller.onLeave = callback\n }\n\n onChange(callback){ this.caller.onChange = callback }\n\n onSync(callback){ this.caller.onSync = callback }\n\n list(by){ return Presence.list(this.state, by) }\n\n inPendingSyncState(){\n return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n }\n\n // lower-level public static API\n\n /**\n * Used to sync the list of presences on the server with the client's state.\n * An optional `onChange` callback can be provided to react to changes in the\n * client's local presences across disconnects and reconnects with the\n * server.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeState(state, newState, onChange){\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n if(joinedMetas.length > 0){\n leaves[key] = {metas: leftMetas}\n } else {\n leaves[key] = newPresence;\n leaves[key].metas = leftMetas\n }\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.synchronizeDiff(state, {joins: joins, leaves: leaves}, onChange)\n }\n\n /**\n * Used to sync the list of presences on the server\n * with the client's state. An optional `onJoin` and `onLeave` callback can\n * be provided to react to changes in the client's local presences across\n * disconnects and reconnects with the server.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeState function instead\n */\n static syncState(currentState, newState, onJoin, onLeave){\n let state = this.clone(currentState)\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n leaves[key] = this.clone(currentPresence)\n leaves[key].metas = leftMetas\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave events from the server, as\n * they happen. Like `syncState`, `syncDiff` accepts optional `onChange`\n * callback to react to a user joining or leaving from a device.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeDiff(state, {joins, leaves}, onChange){\n const changes = {}\n this.map(joins, (key, newPresence) => {\n changes[key] = {joinedMetas: newPresence.metas, leftMetas: [], update: newPresence}\n })\n this.map(leaves, (key, leftPresence) => {\n if (changes[key]) {\n changes[key].leftMetas = leftPresence.metas;\n } else {\n changes[key] = {joinedMetas: [], leftMetas: leftPresence.metas, update: leftPresence}\n }\n })\n\n this.map(changes, (key, {joinedMetas, leftMetas, update}) => {\n const joinedRefs = joinedMetas.map(m => m.phx_ref)\n const refsToRemove = leftMetas.map(m => m.phx_ref)\n const oldPresence = state[key];\n\n const newPresence = {metas: oldPresence ? oldPresence.metas : []};\n newPresence.metas = newPresence.metas\n .filter(m => joinedRefs.indexOf(m.phx_ref) === -1)\n .concat(joinedMetas)\n .filter(p => refsToRemove.indexOf(p.phx_ref) === -1)\n\n Object.keys(update).forEach(key => {\n // metas is already handled above separately\n if (key !== \"metas\") newPresence[key] = update[key];\n })\n\n if (newPresence.metas.length === 0) {\n // Delete the presence from the state when the metas are empty\n delete state[key]\n } else {\n // Update the old presence with the new presence in one atomic\n // operation\n state[key] = newPresence;\n }\n\n // Only notify onChange when there were any changes. If there were\n // changes but the old metas and new betas are still empty then there's\n // no reason to notify onChange callback.\n if (onChange) onChange(key, oldPresence, newPresence)\n });\n\n return state;\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave\n * events from the server, as they happen. Like `syncState`, `syncDiff`\n * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n * joining or leaving from a device.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeDiff function instead\n */\n static syncDiff(state, diff, onJoin, onLeave){\n let {joins, leaves} = this.clone(diff)\n if(!onJoin){ onJoin = function (){ } }\n if(!onLeave){ onLeave = function (){ } }\n\n this.map(joins, (key, newPresence) => {\n let currentPresence = state[key]\n state[key] = this.clone(newPresence)\n if(currentPresence){\n let joinedRefs = state[key].metas.map(m => m.phx_ref)\n let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n state[key].metas.unshift(...curMetas)\n }\n onJoin(key, currentPresence, newPresence)\n })\n this.map(leaves, (key, leftPresence) => {\n let currentPresence = state[key]\n if(!currentPresence){ return }\n let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n currentPresence.metas = currentPresence.metas.filter(p => {\n return refsToRemove.indexOf(p.phx_ref) < 0\n })\n onLeave(key, currentPresence, leftPresence)\n if(currentPresence.metas.length === 0){\n delete state[key]\n }\n })\n return state\n }\n\n /**\n * Returns the array of presences, with selected metadata.\n *\n * @param {Object} presences\n * @param {Function} chooser\n *\n * @returns {Presence}\n */\n static list(presences, chooser){\n if(!chooser){ chooser = function (key, pres){ return pres } }\n\n return this.map(presences, (key, presence) => {\n return chooser(key, presence)\n })\n }\n\n // private\n\n static map(obj, func){\n return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n }\n\n static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n HEADER_LENGTH: 1,\n META_LENGTH: 4,\n KINDS: {push: 0, reply: 1, broadcast: 2},\n\n encode(msg, callback){\n if(msg.payload.constructor === ArrayBuffer){\n return callback(this.binaryEncode(msg))\n } else {\n let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n return callback(JSON.stringify(payload))\n }\n },\n\n decode(rawPayload, callback){\n if(rawPayload.constructor === ArrayBuffer){\n return callback(this.binaryDecode(rawPayload))\n } else {\n let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n return callback({join_ref, ref, topic, event, payload})\n }\n },\n\n // private\n\n binaryEncode(message){\n let {join_ref, ref, event, topic, payload} = message\n let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n let view = new DataView(header)\n let offset = 0\n\n view.setUint8(offset++, this.KINDS.push) // kind\n view.setUint8(offset++, join_ref.length)\n view.setUint8(offset++, ref.length)\n view.setUint8(offset++, topic.length)\n view.setUint8(offset++, event.length)\n Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n var combined = new Uint8Array(header.byteLength + payload.byteLength)\n combined.set(new Uint8Array(header), 0)\n combined.set(new Uint8Array(payload), header.byteLength)\n\n return combined.buffer\n },\n\n binaryDecode(buffer){\n let view = new DataView(buffer)\n let kind = view.getUint8(0)\n let decoder = new TextDecoder()\n switch(kind){\n case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n }\n },\n\n decodePush(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let topicSize = view.getUint8(2)\n let eventSize = view.getUint8(3)\n let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n },\n\n decodeReply(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let refSize = view.getUint8(2)\n let topicSize = view.getUint8(3)\n let eventSize = view.getUint8(4)\n let offset = this.HEADER_LENGTH + this.META_LENGTH\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n offset = offset + refSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n let payload = {status: event, response: data}\n return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n },\n\n decodeBroadcast(buffer, view, decoder){\n let topicSize = view.getUint8(1)\n let eventSize = view.getUint8(2)\n let offset = this.HEADER_LENGTH + 2\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n\n return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n }\n}\n", "import {\n global,\n phxWindow,\n CHANNEL_EVENTS,\n DEFAULT_TIMEOUT,\n DEFAULT_VSN,\n SOCKET_STATES,\n TRANSPORTS,\n WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n * `\"wss://example.com\"`\n * `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback.\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millsec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n * return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millsec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n * return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n * console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n*/\nexport default class Socket {\n constructor(endPoint, opts = {}){\n this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n this.channels = []\n this.sendBuffer = []\n this.ref = 0\n this.timeout = opts.timeout || DEFAULT_TIMEOUT\n this.transport = opts.transport || global.WebSocket || LongPoll\n this.establishedConnections = 0\n this.defaultEncoder = Serializer.encode.bind(Serializer)\n this.defaultDecoder = Serializer.decode.bind(Serializer)\n this.closeWasClean = false\n this.binaryType = opts.binaryType || \"arraybuffer\"\n this.connectClock = 1\n if(this.transport !== LongPoll){\n this.encode = opts.encode || this.defaultEncoder\n this.decode = opts.decode || this.defaultDecoder\n } else {\n this.encode = this.defaultEncoder\n this.decode = this.defaultDecoder\n }\n let awaitingConnectionOnPageShow = null\n if(phxWindow && phxWindow.addEventListener){\n phxWindow.addEventListener(\"pagehide\", _e => {\n if(this.conn){\n this.disconnect()\n awaitingConnectionOnPageShow = this.connectClock\n }\n })\n phxWindow.addEventListener(\"pageshow\", _e => {\n if(awaitingConnectionOnPageShow === this.connectClock){\n awaitingConnectionOnPageShow = null\n this.connect()\n }\n })\n }\n this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n this.rejoinAfterMs = (tries) => {\n if(opts.rejoinAfterMs){\n return opts.rejoinAfterMs(tries)\n } else {\n return [1000, 2000, 5000][tries - 1] || 10000\n }\n }\n this.reconnectAfterMs = (tries) => {\n if(opts.reconnectAfterMs){\n return opts.reconnectAfterMs(tries)\n } else {\n return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n }\n }\n this.logger = opts.logger || null\n this.longpollerTimeout = opts.longpollerTimeout || 20000\n this.params = closure(opts.params || {})\n this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n this.vsn = opts.vsn || DEFAULT_VSN\n this.heartbeatTimeoutTimer = null\n this.heartbeatTimer = null\n this.pendingHeartbeatRef = null\n this.reconnectTimer = new Timer(() => {\n this.teardown(() => this.connect())\n }, this.reconnectAfterMs)\n }\n\n /**\n * Returns the LongPoll transport reference\n */\n getLongPollTransport(){ return LongPoll }\n\n /**\n * Disconnects and replaces the active transport\n *\n * @param {Function} newTransport - The new transport class to instantiate\n *\n */\n replaceTransport(newTransport){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.sendBuffer = []\n if(this.conn){\n this.conn.close()\n this.conn = null\n }\n this.transport = newTransport\n }\n\n /**\n * Returns the socket protocol\n *\n * @returns {string}\n */\n protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n /**\n * The fully qualifed socket url\n *\n * @returns {string}\n */\n endPointURL(){\n let uri = Ajax.appendParams(\n Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n if(uri.charAt(0) !== \"/\"){ return uri }\n if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n return `${this.protocol()}://${location.host}${uri}`\n }\n\n /**\n * Disconnects the socket\n *\n * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n *\n * @param {Function} callback - Optional callback which is called after socket is disconnected.\n * @param {integer} code - A status code for disconnection (Optional).\n * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n */\n disconnect(callback, code, reason){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.teardown(callback, code, reason)\n }\n\n /**\n *\n * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n *\n * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n */\n connect(params){\n if(params){\n console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n this.params = closure(params)\n }\n if(this.conn){ return }\n\n this.connectClock++\n this.closeWasClean = false\n this.conn = new this.transport(this.endPointURL())\n this.conn.binaryType = this.binaryType\n this.conn.timeout = this.longpollerTimeout\n this.conn.onopen = () => this.onConnOpen()\n this.conn.onerror = error => this.onConnError(error)\n this.conn.onmessage = event => this.onConnMessage(event)\n this.conn.onclose = event => this.onConnClose(event)\n }\n\n /**\n * Logs the message. Override `this.logger` for specialized logging. noops by default\n * @param {string} kind\n * @param {string} msg\n * @param {Object} data\n */\n log(kind, msg, data){ this.logger(kind, msg, data) }\n\n /**\n * Returns true if a logger has been set on this socket.\n */\n hasLogger(){ return this.logger !== null }\n\n /**\n * Registers callbacks for connection open events\n *\n * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n *\n * @param {Function} callback\n */\n onOpen(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.open.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection close events\n * @param {Function} callback\n */\n onClose(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.close.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection error events\n *\n * @example socket.onError(function(error){ alert(\"An error occurred\") })\n *\n * @param {Function} callback\n */\n onError(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.error.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection message events\n * @param {Function} callback\n */\n onMessage(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.message.push([ref, callback])\n return ref\n }\n\n /**\n * Pings the server and invokes the callback with the RTT in milliseconds\n * @param {Function} callback\n *\n * Returns true if the ping was pushed or false if unable to be pushed.\n */\n ping(callback){\n if(!this.isConnected()){ return false }\n let ref = this.makeRef()\n let startTime = Date.now()\n this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n let onMsgRef = this.onMessage(msg => {\n if(msg.ref === ref){\n this.off([onMsgRef])\n callback(Date.now() - startTime)\n }\n })\n return true\n }\n\n /**\n * @private\n */\n\n clearHeartbeats(){\n clearTimeout(this.heartbeatTimer)\n clearTimeout(this.heartbeatTimeoutTimer)\n }\n\n onConnOpen(){\n if(this.hasLogger()) this.log(\"transport\", `connected to ${this.endPointURL()}`)\n this.closeWasClean = false\n this.establishedConnections++\n this.flushSendBuffer()\n this.reconnectTimer.reset()\n this.resetHeartbeat()\n this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n }\n\n /**\n * @private\n */\n\n heartbeatTimeout(){\n if(this.pendingHeartbeatRef){\n this.pendingHeartbeatRef = null\n if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n this.triggerChanError()\n this.closeWasClean = false\n this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n }\n }\n\n resetHeartbeat(){\n if(this.conn && this.conn.skipHeartbeat){ return }\n this.pendingHeartbeatRef = null\n this.clearHeartbeats()\n this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n }\n\n teardown(callback, code, reason){\n if(!this.conn){\n return callback && callback()\n }\n\n this.waitForBufferDone(() => {\n if(this.conn){\n if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n }\n\n this.waitForSocketClosed(() => {\n if(this.conn){\n this.conn.onopen = function (){ } // noop\n this.conn.onerror = function (){ } // noop\n this.conn.onmessage = function (){ } // noop\n this.conn.onclose = function (){ } // noop\n this.conn = null\n }\n\n callback && callback()\n })\n })\n }\n\n waitForBufferDone(callback, tries = 1){\n if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForBufferDone(callback, tries + 1)\n }, 150 * tries)\n }\n\n waitForSocketClosed(callback, tries = 1){\n if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForSocketClosed(callback, tries + 1)\n }, 150 * tries)\n }\n\n onConnClose(event){\n if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n this.triggerChanError()\n this.clearHeartbeats()\n if(!this.closeWasClean){\n this.reconnectTimer.scheduleTimeout()\n }\n this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n }\n\n /**\n * @private\n */\n onConnError(error){\n if(this.hasLogger()) this.log(\"transport\", error)\n let transportBefore = this.transport\n let establishedBefore = this.establishedConnections\n this.stateChangeCallbacks.error.forEach(([, callback]) => {\n callback(error, transportBefore, establishedBefore)\n })\n if(transportBefore === this.transport || establishedBefore > 0){\n this.triggerChanError()\n }\n }\n\n /**\n * @private\n */\n triggerChanError(){\n this.channels.forEach(channel => {\n if(!(channel.isErrored() || channel.isLeaving() || channel.isClosed())){\n channel.trigger(CHANNEL_EVENTS.error)\n }\n })\n }\n\n /**\n * @returns {string}\n */\n connectionState(){\n switch(this.conn && this.conn.readyState){\n case SOCKET_STATES.connecting: return \"connecting\"\n case SOCKET_STATES.open: return \"open\"\n case SOCKET_STATES.closing: return \"closing\"\n default: return \"closed\"\n }\n }\n\n /**\n * @returns {boolean}\n */\n isConnected(){ return this.connectionState() === \"open\" }\n\n /**\n * @private\n *\n * @param {Channel}\n */\n remove(channel){\n this.off(channel.stateChangeRefs)\n this.channels = this.channels.filter(c => c.joinRef() !== channel.joinRef())\n }\n\n /**\n * Removes `onOpen`, `onClose`, `onError,` and `onMessage` registrations.\n *\n * @param {refs} - list of refs returned by calls to\n * `onOpen`, `onClose`, `onError,` and `onMessage`\n */\n off(refs){\n for(let key in this.stateChangeCallbacks){\n this.stateChangeCallbacks[key] = this.stateChangeCallbacks[key].filter(([ref]) => {\n return refs.indexOf(ref) === -1\n })\n }\n }\n\n /**\n * Initiates a new channel for the given topic\n *\n * @param {string} topic\n * @param {Object} chanParams - Parameters for the channel\n * @returns {Channel}\n */\n channel(topic, chanParams = {}){\n let chan = new Channel(topic, chanParams, this)\n this.channels.push(chan)\n return chan\n }\n\n /**\n * @param {Object} data\n */\n push(data){\n if(this.hasLogger()){\n let {topic, event, payload, ref, join_ref} = data\n this.log(\"push\", `${topic} ${event} (${join_ref}, ${ref})`, payload)\n }\n\n if(this.isConnected()){\n this.encode(data, result => this.conn.send(result))\n } else {\n this.sendBuffer.push(() => this.encode(data, result => this.conn.send(result)))\n }\n }\n\n /**\n * Return the next message ref, accounting for overflows\n * @returns {string}\n */\n makeRef(){\n let newRef = this.ref + 1\n if(newRef === this.ref){ this.ref = 0 } else { this.ref = newRef }\n\n return this.ref.toString()\n }\n\n sendHeartbeat(){\n if(this.pendingHeartbeatRef && !this.isConnected()){ return }\n this.pendingHeartbeatRef = this.makeRef()\n this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: this.pendingHeartbeatRef})\n this.heartbeatTimeoutTimer = setTimeout(() => this.heartbeatTimeout(), this.heartbeatIntervalMs)\n }\n\n flushSendBuffer(){\n if(this.isConnected() && this.sendBuffer.length > 0){\n this.sendBuffer.forEach(callback => callback())\n this.sendBuffer = []\n }\n }\n\n onConnMessage(rawMessage){\n this.decode(rawMessage.data, msg => {\n let {topic, event, payload, ref, join_ref} = msg\n if(ref && ref === this.pendingHeartbeatRef){\n this.clearHeartbeats()\n this.pendingHeartbeatRef = null\n this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n }\n\n if(this.hasLogger()) this.log(\"receive\", `${payload.status || \"\"} ${topic} ${event} ${ref && \"(\" + ref + \")\" || \"\"}`, payload)\n\n for(let i = 0; i < this.channels.length; i++){\n const channel = this.channels[i]\n if(!channel.isMember(topic, event, payload, join_ref)){ continue }\n channel.trigger(event, payload, ref, join_ref)\n }\n\n for(let i = 0; i < this.stateChangeCallbacks.message.length; i++){\n let [, callback] = this.stateChangeCallbacks.message[i]\n callback(msg)\n }\n })\n }\n\n leaveOpenTopic(topic){\n let dupChannel;\n for(let i = 0; i < this.channels.length; i++){\n let c = this.channels[i];\n if (c.topic === topic && (c.isJoined() || c.isJoining())) {\n dupChannel = c;\n break;\n }\n }\n\n if(dupChannel){\n if(this.hasLogger()) this.log(\"transport\", `leaving duplicate topic \"${topic}\"`)\n dupChannel.leave()\n }\n }\n}\n"], - "mappings": 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+ "sourcesContent": ["/**\n * Phoenix Channels JavaScript client\n *\n * ## Socket Connection\n *\n * A single connection is established to the server and\n * channels are multiplexed over the connection.\n * Connect to the server using the `Socket` class:\n *\n * ```javascript\n * let socket = new Socket(\"/socket\", {params: {userToken: \"123\"}})\n * socket.connect()\n * ```\n *\n * The `Socket` constructor takes the mount point of the socket,\n * the authentication params, as well as options that can be found in\n * the Socket docs, such as configuring the `LongPoll` transport, and\n * heartbeat.\n *\n * ## Channels\n *\n * Channels are isolated, concurrent processes on the server that\n * subscribe to topics and broker events between the client and server.\n * To join a channel, you must provide the topic, and channel params for\n * authorization. Here's an example chat room example where `\"new_msg\"`\n * events are listened for, messages are pushed to the server, and\n * the channel is joined with ok/error/timeout matches:\n *\n * ```javascript\n * let channel = socket.channel(\"room:123\", {token: roomToken})\n * channel.on(\"new_msg\", msg => console.log(\"Got message\", msg) )\n * $input.onEnter( e => {\n * channel.push(\"new_msg\", {body: e.target.val}, 10000)\n * .receive(\"ok\", (msg) => console.log(\"created message\", msg) )\n * .receive(\"error\", (reasons) => console.log(\"create failed\", reasons) )\n * .receive(\"timeout\", () => console.log(\"Networking issue...\") )\n * })\n *\n * channel.join()\n * .receive(\"ok\", ({messages}) => console.log(\"catching up\", messages) )\n * .receive(\"error\", ({reason}) => console.log(\"failed join\", reason) )\n * .receive(\"timeout\", () => console.log(\"Networking issue. Still waiting...\"))\n *```\n *\n * ## Joining\n *\n * Creating a channel with `socket.channel(topic, params)`, binds the params to\n * `channel.params`, which are sent up on `channel.join()`.\n * Subsequent rejoins will send up the modified params for\n * updating authorization params, or passing up last_message_id information.\n * Successful joins receive an \"ok\" status, while unsuccessful joins\n * receive \"error\".\n *\n * With the default serializers and WebSocket transport, JSON text frames are\n * used for pushing a JSON object literal. If an `ArrayBuffer` instance is provided,\n * binary encoding will be used and the message will be sent with the binary\n * opcode.\n *\n * *Note*: binary messages are only supported on the WebSocket transport.\n *\n * ## Duplicate Join Subscriptions\n *\n * While the client may join any number of topics on any number of channels,\n * the client may only hold a single subscription for each unique topic at any\n * given time. When attempting to create a duplicate subscription,\n * the server will close the existing channel, log a warning, and\n * spawn a new channel for the topic. The client will have their\n * `channel.onClose` callbacks fired for the existing channel, and the new\n * channel join will have its receive hooks processed as normal.\n *\n * ## Pushing Messages\n *\n * From the previous example, we can see that pushing messages to the server\n * can be done with `channel.push(eventName, payload)` and we can optionally\n * receive responses from the push. Additionally, we can use\n * `receive(\"timeout\", callback)` to abort waiting for our other `receive` hooks\n * and take action after some period of waiting. The default timeout is 10000ms.\n *\n *\n * ## Socket Hooks\n *\n * Lifecycle events of the multiplexed connection can be hooked into via\n * `socket.onError()` and `socket.onClose()` events, ie:\n *\n * ```javascript\n * socket.onError( () => console.log(\"there was an error with the connection!\") )\n * socket.onClose( () => console.log(\"the connection dropped\") )\n * ```\n *\n *\n * ## Channel Hooks\n *\n * For each joined channel, you can bind to `onError` and `onClose` events\n * to monitor the channel lifecycle, ie:\n *\n * ```javascript\n * channel.onError( () => console.log(\"there was an error!\") )\n * channel.onClose( () => console.log(\"the channel has gone away gracefully\") )\n * ```\n *\n * ### onError hooks\n *\n * `onError` hooks are invoked if the socket connection drops, or the channel\n * crashes on the server. In either case, a channel rejoin is attempted\n * automatically in an exponential backoff manner.\n *\n * ### onClose hooks\n *\n * `onClose` hooks are invoked only in two cases. 1) the channel explicitly\n * closed on the server, or 2). The client explicitly closed, by calling\n * `channel.leave()`\n *\n *\n * ## Presence\n *\n * The `Presence` object provides features for syncing presence information\n * from the server with the client and handling presences joining and leaving.\n *\n * ### Syncing state from the server\n *\n * To sync presence state from the server, first instantiate an object and\n * pass your channel in to track lifecycle events:\n *\n * ```javascript\n * let channel = socket.channel(\"some:topic\")\n * let presence = new Presence(channel)\n * ```\n *\n * Next, use the `presence.onSync` callback to react to state changes\n * from the server. For example, to render the list of users every time\n * the list changes, you could write:\n *\n * ```javascript\n * presence.onSync(() => {\n * myRenderUsersFunction(presence.list())\n * })\n * ```\n *\n * ### Listing Presences\n *\n * `presence.list` is used to return a list of presence information\n * based on the local state of metadata. By default, all presence\n * metadata is returned, but a `listBy` function can be supplied to\n * allow the client to select which metadata to use for a given presence.\n * For example, you may have a user online from different devices with\n * a metadata status of \"online\", but they have set themselves to \"away\"\n * on another device. In this case, the app may choose to use the \"away\"\n * status for what appears on the UI. The example below defines a `listBy`\n * function which prioritizes the first metadata which was registered for\n * each user. This could be the first tab they opened, or the first device\n * they came online from:\n *\n * ```javascript\n * let listBy = (id, {metas: [first, ...rest]}) => {\n * first.count = rest.length + 1 // count of this user's presences\n * first.id = id\n * return first\n * }\n * let onlineUsers = presence.list(listBy)\n * ```\n *\n * ### Handling individual presence join and leave events\n *\n * The `presence.onChange` callback can be used to react to individual\n * presences joining and leaving the app. onChange can only be used when\n * deprecated onJoin and onLeave functions are not used.\n * For example:\n *\n * ```javascript\n * let presence = new Presence(channel)\n *\n * // detect if user has joined for the 1st time or from another tab/device\n * presence.onChange((id, oldPresence, newPresence) => {\n * if(!oldPresence){\n * console.log(\"user has entered for the first time\", newPresence)\n * } else if (newPresence.metas.length === 0){\n * console.log(\"user has left from all devices\", newPresence)\n * } else {\n * console.log(\"old presence\", oldPresence\");\n * console.log(\"new presence\", newPresence\");\n * }\n * })\n *\n * // receive presence data from server\n * presence.onSync(() => {\n * displayUsers(presence.list())\n * })\n * ```\n * @module phoenix\n */\n\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Presence from \"./presence\"\nimport Serializer from \"./serializer\"\nimport Socket from \"./socket\"\n\nexport {\n Channel,\n LongPoll,\n Presence,\n Serializer,\n Socket\n}\n", "// wraps value in closure or returns closure\nexport let closure = (value) => {\n if(typeof value === \"function\"){\n return value\n } else {\n let closure = function (){ return value }\n return closure\n }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n closed: \"closed\",\n errored: \"errored\",\n joined: \"joined\",\n joining: \"joining\",\n leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n close: \"phx_close\",\n error: \"phx_error\",\n join: \"phx_join\",\n reply: \"phx_reply\",\n leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n longpoll: \"longpoll\",\n websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n constructor(channel, event, payload, timeout){\n this.channel = channel\n this.event = event\n this.payload = payload || function (){ return {} }\n this.receivedResp = null\n this.timeout = timeout\n this.timeoutTimer = null\n this.recHooks = []\n this.sent = false\n }\n\n /**\n *\n * @param {number} timeout\n */\n resend(timeout){\n this.timeout = timeout\n this.reset()\n this.send()\n }\n\n /**\n *\n */\n send(){\n if(this.hasReceived(\"timeout\")){ return }\n this.startTimeout()\n this.sent = true\n this.channel.socket.push({\n topic: this.channel.topic,\n event: this.event,\n payload: this.payload(),\n ref: this.ref,\n join_ref: this.channel.joinRef()\n })\n }\n\n /**\n *\n * @param {*} status\n * @param {*} callback\n */\n receive(status, callback){\n if(this.hasReceived(status)){\n callback(this.receivedResp.response)\n }\n\n this.recHooks.push({status, callback})\n return this\n }\n\n /**\n * @private\n */\n reset(){\n this.cancelRefEvent()\n this.ref = null\n this.refEvent = null\n this.receivedResp = null\n this.sent = false\n }\n\n /**\n * @private\n */\n matchReceive({status, response, _ref}){\n this.recHooks.filter(h => h.status === status)\n .forEach(h => h.callback(response))\n }\n\n /**\n * @private\n */\n cancelRefEvent(){\n if(!this.refEvent){ return }\n this.channel.off(this.refEvent)\n }\n\n /**\n * @private\n */\n cancelTimeout(){\n clearTimeout(this.timeoutTimer)\n this.timeoutTimer = null\n }\n\n /**\n * @private\n */\n startTimeout(){\n if(this.timeoutTimer){ this.cancelTimeout() }\n this.ref = this.channel.socket.makeRef()\n this.refEvent = this.channel.replyEventName(this.ref)\n\n this.channel.on(this.refEvent, payload => {\n this.cancelRefEvent()\n this.cancelTimeout()\n this.receivedResp = payload\n this.matchReceive(payload)\n })\n\n this.timeoutTimer = setTimeout(() => {\n this.trigger(\"timeout\", {})\n }, this.timeout)\n }\n\n /**\n * @private\n */\n hasReceived(status){\n return this.receivedResp && this.receivedResp.status === status\n }\n\n /**\n * @private\n */\n trigger(status, response){\n this.channel.trigger(this.refEvent, {status, response})\n }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n * return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n constructor(callback, timerCalc){\n this.callback = callback\n this.timerCalc = timerCalc\n this.timer = null\n this.tries = 0\n }\n\n reset(){\n this.tries = 0\n clearTimeout(this.timer)\n }\n\n /**\n * Cancels any previous scheduleTimeout and schedules callback\n */\n scheduleTimeout(){\n clearTimeout(this.timer)\n\n this.timer = setTimeout(() => {\n this.tries = this.tries + 1\n this.callback()\n }, this.timerCalc(this.tries + 1))\n }\n}\n", "import {closure} from \"./utils\"\nimport {\n CHANNEL_EVENTS,\n CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n constructor(topic, params, socket){\n this.state = CHANNEL_STATES.closed\n this.topic = topic\n this.params = closure(params || {})\n this.socket = socket\n this.bindings = []\n this.bindingRef = 0\n this.timeout = this.socket.timeout\n this.joinedOnce = false\n this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n this.pushBuffer = []\n this.stateChangeRefs = []\n\n this.rejoinTimer = new Timer(() => {\n if(this.socket.isConnected()){ this.rejoin() }\n }, this.socket.rejoinAfterMs)\n this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n this.stateChangeRefs.push(this.socket.onOpen(() => {\n this.rejoinTimer.reset()\n if(this.isErrored()){ this.rejoin() }\n })\n )\n this.joinPush.receive(\"ok\", () => {\n this.state = CHANNEL_STATES.joined\n this.rejoinTimer.reset()\n this.pushBuffer.forEach(pushEvent => pushEvent.send())\n this.pushBuffer = []\n })\n this.joinPush.receive(\"error\", () => {\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.onClose(() => {\n this.rejoinTimer.reset()\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n this.state = CHANNEL_STATES.closed\n this.socket.remove(this)\n })\n this.onError(reason => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n if(this.isJoining()){ this.joinPush.reset() }\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.joinPush.receive(\"timeout\", () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n leavePush.send()\n this.state = CHANNEL_STATES.errored\n this.joinPush.reset()\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n this.trigger(this.replyEventName(ref), payload)\n })\n }\n\n /**\n * Join the channel\n * @param {integer} timeout\n * @returns {Push}\n */\n join(timeout = this.timeout){\n if(this.joinedOnce){\n throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n } else {\n this.timeout = timeout\n this.joinedOnce = true\n this.rejoin()\n return this.joinPush\n }\n }\n\n /**\n * Hook into channel close\n * @param {Function} callback\n */\n onClose(callback){\n this.on(CHANNEL_EVENTS.close, callback)\n }\n\n /**\n * Hook into channel errors\n * @param {Function} callback\n */\n onError(callback){\n return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n }\n\n /**\n * Subscribes on channel events\n *\n * Subscription returns a ref counter, which can be used later to\n * unsubscribe the exact event listener\n *\n * @example\n * const ref1 = channel.on(\"event\", do_stuff)\n * const ref2 = channel.on(\"event\", do_other_stuff)\n * channel.off(\"event\", ref1)\n * // Since unsubscription, do_stuff won't fire,\n * // while do_other_stuff will keep firing on the \"event\"\n *\n * @param {string} event\n * @param {Function} callback\n * @returns {integer} ref\n */\n on(event, callback){\n let ref = this.bindingRef++\n this.bindings.push({event, ref, callback})\n return ref\n }\n\n /**\n * Unsubscribes off of channel events\n *\n * Use the ref returned from a channel.on() to unsubscribe one\n * handler, or pass nothing for the ref to unsubscribe all\n * handlers for the given event.\n *\n * @example\n * // Unsubscribe the do_stuff handler\n * const ref1 = channel.on(\"event\", do_stuff)\n * channel.off(\"event\", ref1)\n *\n * // Unsubscribe all handlers from event\n * channel.off(\"event\")\n *\n * @param {string} event\n * @param {integer} ref\n */\n off(event, ref){\n this.bindings = this.bindings.filter((bind) => {\n return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n })\n }\n\n /**\n * @private\n */\n canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n /**\n * Sends a message `event` to phoenix with the payload `payload`.\n * Phoenix receives this in the `handle_in(event, payload, socket)`\n * function. if phoenix replies or it times out (default 10000ms),\n * then optionally the reply can be received.\n *\n * @example\n * channel.push(\"event\")\n * .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n * .receive(\"error\", err => console.log(\"phoenix errored\", err))\n * .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n * @param {string} event\n * @param {Object} payload\n * @param {number} [timeout]\n * @returns {Push}\n */\n push(event, payload, timeout = this.timeout){\n payload = payload || {}\n if(!this.joinedOnce){\n throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n }\n let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n if(this.canPush()){\n pushEvent.send()\n } else {\n pushEvent.startTimeout()\n this.pushBuffer.push(pushEvent)\n }\n\n return pushEvent\n }\n\n /** Leaves the channel\n *\n * Unsubscribes from server events, and\n * instructs channel to terminate on server\n *\n * Triggers onClose() hooks\n *\n * To receive leave acknowledgements, use the `receive`\n * hook to bind to the server ack, ie:\n *\n * @example\n * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n *\n * @param {integer} timeout\n * @returns {Push}\n */\n leave(timeout = this.timeout){\n this.rejoinTimer.reset()\n this.joinPush.cancelTimeout()\n\n this.state = CHANNEL_STATES.leaving\n let onClose = () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n this.trigger(CHANNEL_EVENTS.close, \"leave\")\n }\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n leavePush.receive(\"ok\", () => onClose())\n .receive(\"timeout\", () => onClose())\n leavePush.send()\n if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n return leavePush\n }\n\n /**\n * Overridable message hook\n *\n * Receives all events for specialized message handling\n * before dispatching to the channel callbacks.\n *\n * Must return the payload, modified or unmodified\n * @param {string} event\n * @param {Object} payload\n * @param {integer} ref\n * @returns {Object}\n */\n onMessage(_event, payload, _ref){ return payload }\n\n /**\n * @private\n */\n isMember(topic, event, payload, joinRef){\n if(this.topic !== topic){ return false }\n\n if(joinRef && joinRef !== this.joinRef()){\n if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n return false\n } else {\n return true\n }\n }\n\n /**\n * @private\n */\n joinRef(){ return this.joinPush.ref }\n\n /**\n * @private\n */\n rejoin(timeout = this.timeout){\n if(this.isLeaving()){ return }\n this.socket.leaveOpenTopic(this.topic)\n this.state = CHANNEL_STATES.joining\n this.joinPush.resend(timeout)\n }\n\n /**\n * @private\n */\n trigger(event, payload, ref, joinRef){\n let handledPayload = this.onMessage(event, payload, ref, joinRef)\n if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n for(let i = 0; i < eventBindings.length; i++){\n let bind = eventBindings[i]\n bind.callback(handledPayload, ref, joinRef || this.joinRef())\n }\n }\n\n /**\n * @private\n */\n replyEventName(ref){ return `chan_reply_${ref}` }\n\n /**\n * @private\n */\n isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n /**\n * @private\n */\n isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n /**\n * @private\n */\n isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n /**\n * @private\n */\n isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n /**\n * @private\n */\n isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n global,\n XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n if(global.XDomainRequest){\n let req = new global.XDomainRequest() // IE8, IE9\n return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n } else {\n let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n }\n }\n\n static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n req.timeout = timeout\n req.open(method, endPoint)\n req.onload = () => {\n let response = this.parseJSON(req.responseText)\n callback && callback(response)\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n // Work around bug in IE9 that requires an attached onprogress handler\n req.onprogress = () => { }\n\n req.send(body)\n return req\n }\n\n static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n req.open(method, endPoint, true)\n req.timeout = timeout\n req.setRequestHeader(\"Content-Type\", accept)\n req.onerror = () => callback && callback(null)\n req.onreadystatechange = () => {\n if(req.readyState === XHR_STATES.complete && callback){\n let response = this.parseJSON(req.responseText)\n callback(response)\n }\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n req.send(body)\n return req\n }\n\n static parseJSON(resp){\n if(!resp || resp === \"\"){ return null }\n\n try {\n return JSON.parse(resp)\n } catch (e){\n console && console.log(\"failed to parse JSON response\", resp)\n return null\n }\n }\n\n static serialize(obj, parentKey){\n let queryStr = []\n for(var key in obj){\n if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n let paramKey = parentKey ? `${parentKey}[${key}]` : key\n let paramVal = obj[key]\n if(typeof paramVal === \"object\"){\n queryStr.push(this.serialize(paramVal, paramKey))\n } else {\n queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n }\n }\n return queryStr.join(\"&\")\n }\n\n static appendParams(url, params){\n if(Object.keys(params).length === 0){ return url }\n\n let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n return `${url}${prefix}${this.serialize(params)}`\n }\n}\n", "import {\n SOCKET_STATES,\n TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nexport default class LongPoll {\n\n constructor(endPoint){\n this.endPoint = null\n this.token = null\n this.skipHeartbeat = true\n this.reqs = new Set()\n this.onopen = function (){ } // noop\n this.onerror = function (){ } // noop\n this.onmessage = function (){ } // noop\n this.onclose = function (){ } // noop\n this.pollEndpoint = this.normalizeEndpoint(endPoint)\n this.readyState = SOCKET_STATES.connecting\n this.poll()\n }\n\n normalizeEndpoint(endPoint){\n return (endPoint\n .replace(\"ws://\", \"http://\")\n .replace(\"wss://\", \"https://\")\n .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n }\n\n endpointURL(){\n return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n }\n\n closeAndRetry(code, reason, wasClean){\n this.close(code, reason, wasClean)\n this.readyState = SOCKET_STATES.connecting\n }\n\n ontimeout(){\n this.onerror(\"timeout\")\n this.closeAndRetry(1005, \"timeout\", false)\n }\n\n isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n poll(){\n this.ajax(\"GET\", null, () => this.ontimeout(), resp => {\n if(resp){\n var {status, token, messages} = resp\n this.token = token\n } else {\n status = 0\n }\n\n switch(status){\n case 200:\n messages.forEach(msg => {\n // Tasks are what things like event handlers, setTimeout callbacks,\n // promise resolves and more are run within.\n // In modern browsers, there are two different kinds of tasks,\n // microtasks and macrotasks.\n // Microtasks are mainly used for Promises, while macrotasks are\n // used for everything else.\n // Microtasks always have priority over macrotasks. If the JS engine\n // is looking for a task to run, it will always try to empty the\n // microtask queue before attempting to run anything from the\n // macrotask queue.\n //\n // For the WebSocket transport, messages always arrive in their own\n // event. This means that if any promises are resolved from within,\n // their callbacks will always finish execution by the time the\n // next message event handler is run.\n //\n // In order to emulate this behaviour, we need to make sure each\n // onmessage handler is run within it's own macrotask.\n setTimeout(() => this.onmessage({data: msg}), 0)\n })\n this.poll()\n break\n case 204:\n this.poll()\n break\n case 410:\n this.readyState = SOCKET_STATES.open\n this.onopen({})\n this.poll()\n break\n case 403:\n this.onerror(403)\n this.close(1008, \"forbidden\", false)\n break\n case 0:\n case 500:\n this.onerror(500)\n this.closeAndRetry(1011, \"internal server error\", 500)\n break\n default:\n this.onerror(status)\n this.close()\n break\n }\n })\n }\n\n send(body){\n this.ajax(\"POST\", body, () => this.onerror(\"timeout\"), resp => {\n if(!resp || resp.status !== 200){\n this.onerror(resp && resp.status)\n this.closeAndRetry(1011, \"internal server error\", false)\n }\n })\n }\n\n close(code, reason, wasClean){\n for(let req of this.reqs){ req.abort() }\n this.readyState = SOCKET_STATES.closed\n let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n if(typeof(CloseEvent) !== \"undefined\"){\n this.onclose(new CloseEvent(\"close\", opts))\n } else {\n this.onclose(opts)\n }\n }\n\n ajax(method, body, onCallerTimeout, callback){\n let req\n let ontimeout = () => {\n this.reqs.delete(req)\n onCallerTimeout()\n }\n req = Ajax.request(method, this.endpointURL(), \"application/json\", body, this.timeout, ontimeout, resp => {\n this.reqs.delete(req)\n if(this.isActive()){ callback(resp) }\n })\n this.reqs.add(req)\n }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n * for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n constructor(channel, opts = {}){\n let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n this.state = {}\n this.pendingDiffs = []\n this.channel = channel\n this.joinRef = null\n this.caller = {\n onChange: null,\n onJoin: null,\n onLeave: null,\n onSync: function (){ }\n }\n\n this.channel.on(events.state, newState => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n this.joinRef = this.channel.joinRef()\n if (onJoin || onLeave) {\n Presence.syncState(this.state, newState, onJoin, onLeave)\n } else {\n Presence.synchronizeState(this.state, newState, onChange)\n }\n\n this.pendingDiffs.forEach(diff => {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n })\n this.pendingDiffs = []\n onSync()\n })\n\n this.channel.on(events.diff, diff => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n if(this.inPendingSyncState()){\n this.pendingDiffs.push(diff)\n } else {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n onSync()\n }\n })\n }\n\n // @deprecated Please use onChange instead\n onJoin(callback){\n console && console.warn && console.warn('onJoin is deprecated, use onChange instead')\n this.caller.onJoin = callback\n }\n\n // @deprecated Please use onChange instead\n onLeave(callback){\n console && console.warn && console.warn('onLeave is deprecated, use onChange instead')\n this.caller.onLeave = callback\n }\n\n onChange(callback){ this.caller.onChange = callback }\n\n onSync(callback){ this.caller.onSync = callback }\n\n list(by){ return Presence.list(this.state, by) }\n\n inPendingSyncState(){\n return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n }\n\n // lower-level public static API\n\n /**\n * Used to sync the list of presences on the server with the client's state.\n * An optional `onChange` callback can be provided to react to changes in the\n * client's local presences across disconnects and reconnects with the\n * server.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeState(state, newState, onChange){\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n if(joinedMetas.length > 0){\n leaves[key] = {metas: leftMetas}\n } else {\n leaves[key] = newPresence;\n leaves[key].metas = leftMetas\n }\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.synchronizeDiff(state, {joins: joins, leaves: leaves}, onChange)\n }\n\n /**\n * Used to sync the list of presences on the server\n * with the client's state. An optional `onJoin` and `onLeave` callback can\n * be provided to react to changes in the client's local presences across\n * disconnects and reconnects with the server.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeState function instead\n */\n static syncState(currentState, newState, onJoin, onLeave){\n let state = this.clone(currentState)\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n leaves[key] = this.clone(currentPresence)\n leaves[key].metas = leftMetas\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave events from the server, as\n * they happen. Like `syncState`, `syncDiff` accepts optional `onChange`\n * callback to react to a user joining or leaving from a device.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeDiff(state, {joins, leaves}, onChange){\n const changes = {}\n this.map(joins, (key, newPresence) => {\n changes[key] = {joinedMetas: newPresence.metas, leftMetas: [], update: newPresence}\n })\n this.map(leaves, (key, leftPresence) => {\n if (changes[key]) {\n changes[key].leftMetas = leftPresence.metas;\n } else {\n changes[key] = {joinedMetas: [], leftMetas: leftPresence.metas, update: leftPresence}\n }\n })\n\n this.map(changes, (key, {joinedMetas, leftMetas, update}) => {\n const joinedRefs = joinedMetas.map(m => m.phx_ref)\n const refsToRemove = leftMetas.map(m => m.phx_ref)\n const oldPresence = state[key];\n\n const newPresence = {metas: oldPresence ? oldPresence.metas : []};\n newPresence.metas = newPresence.metas\n .filter(m => joinedRefs.indexOf(m.phx_ref) === -1)\n .concat(joinedMetas)\n .filter(p => refsToRemove.indexOf(p.phx_ref) === -1)\n\n Object.keys(update).forEach(key => {\n // metas is already handled above separately\n if (key !== \"metas\") newPresence[key] = update[key];\n })\n\n if (newPresence.metas.length === 0) {\n // Delete the presence from the state when the metas are empty\n delete state[key]\n } else {\n // Update the old presence with the new presence in one atomic\n // operation\n state[key] = newPresence;\n }\n\n // Only notify onChange when there were any changes. If there were\n // changes but the old metas and new betas are still empty then there's\n // no reason to notify onChange callback.\n if (onChange) onChange(key, oldPresence, newPresence)\n });\n\n return state;\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave\n * events from the server, as they happen. Like `syncState`, `syncDiff`\n * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n * joining or leaving from a device.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeDiff function instead\n */\n static syncDiff(state, diff, onJoin, onLeave){\n let {joins, leaves} = this.clone(diff)\n if(!onJoin){ onJoin = function (){ } }\n if(!onLeave){ onLeave = function (){ } }\n\n this.map(joins, (key, newPresence) => {\n let currentPresence = state[key]\n state[key] = this.clone(newPresence)\n if(currentPresence){\n let joinedRefs = state[key].metas.map(m => m.phx_ref)\n let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n state[key].metas.unshift(...curMetas)\n }\n onJoin(key, currentPresence, newPresence)\n })\n this.map(leaves, (key, leftPresence) => {\n let currentPresence = state[key]\n if(!currentPresence){ return }\n let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n currentPresence.metas = currentPresence.metas.filter(p => {\n return refsToRemove.indexOf(p.phx_ref) < 0\n })\n onLeave(key, currentPresence, leftPresence)\n if(currentPresence.metas.length === 0){\n delete state[key]\n }\n })\n return state\n }\n\n /**\n * Returns the array of presences, with selected metadata.\n *\n * @param {Object} presences\n * @param {Function} chooser\n *\n * @returns {Presence}\n */\n static list(presences, chooser){\n if(!chooser){ chooser = function (key, pres){ return pres } }\n\n return this.map(presences, (key, presence) => {\n return chooser(key, presence)\n })\n }\n\n // private\n\n static map(obj, func){\n return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n }\n\n static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n HEADER_LENGTH: 1,\n META_LENGTH: 4,\n KINDS: {push: 0, reply: 1, broadcast: 2},\n\n encode(msg, callback){\n if(msg.payload.constructor === ArrayBuffer){\n return callback(this.binaryEncode(msg))\n } else {\n let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n return callback(JSON.stringify(payload))\n }\n },\n\n decode(rawPayload, callback){\n if(rawPayload.constructor === ArrayBuffer){\n return callback(this.binaryDecode(rawPayload))\n } else {\n let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n return callback({join_ref, ref, topic, event, payload})\n }\n },\n\n // private\n\n binaryEncode(message){\n let {join_ref, ref, event, topic, payload} = message\n let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n let view = new DataView(header)\n let offset = 0\n\n view.setUint8(offset++, this.KINDS.push) // kind\n view.setUint8(offset++, join_ref.length)\n view.setUint8(offset++, ref.length)\n view.setUint8(offset++, topic.length)\n view.setUint8(offset++, event.length)\n Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n var combined = new Uint8Array(header.byteLength + payload.byteLength)\n combined.set(new Uint8Array(header), 0)\n combined.set(new Uint8Array(payload), header.byteLength)\n\n return combined.buffer\n },\n\n binaryDecode(buffer){\n let view = new DataView(buffer)\n let kind = view.getUint8(0)\n let decoder = new TextDecoder()\n switch(kind){\n case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n }\n },\n\n decodePush(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let topicSize = view.getUint8(2)\n let eventSize = view.getUint8(3)\n let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n },\n\n decodeReply(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let refSize = view.getUint8(2)\n let topicSize = view.getUint8(3)\n let eventSize = view.getUint8(4)\n let offset = this.HEADER_LENGTH + this.META_LENGTH\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n offset = offset + refSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n let payload = {status: event, response: data}\n return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n },\n\n decodeBroadcast(buffer, view, decoder){\n let topicSize = view.getUint8(1)\n let eventSize = view.getUint8(2)\n let offset = this.HEADER_LENGTH + 2\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n\n return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n }\n}\n", "import {\n global,\n phxWindow,\n CHANNEL_EVENTS,\n DEFAULT_TIMEOUT,\n DEFAULT_VSN,\n SOCKET_STATES,\n TRANSPORTS,\n WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n * `\"wss://example.com\"`\n * `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback.\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millsec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n * return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millsec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n * return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n * console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n*/\nexport default class Socket {\n constructor(endPoint, opts = {}){\n this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n this.channels = []\n this.sendBuffer = []\n this.ref = 0\n this.timeout = opts.timeout || DEFAULT_TIMEOUT\n this.transport = opts.transport || global.WebSocket || LongPoll\n this.establishedConnections = 0\n this.defaultEncoder = Serializer.encode.bind(Serializer)\n this.defaultDecoder = Serializer.decode.bind(Serializer)\n this.closeWasClean = false\n this.binaryType = opts.binaryType || \"arraybuffer\"\n this.connectClock = 1\n if(this.transport !== LongPoll){\n this.encode = opts.encode || this.defaultEncoder\n this.decode = opts.decode || this.defaultDecoder\n } else {\n this.encode = this.defaultEncoder\n this.decode = this.defaultDecoder\n }\n let awaitingConnectionOnPageShow = null\n if(phxWindow && phxWindow.addEventListener){\n phxWindow.addEventListener(\"pagehide\", _e => {\n if(this.conn){\n this.disconnect()\n awaitingConnectionOnPageShow = this.connectClock\n }\n })\n phxWindow.addEventListener(\"pageshow\", _e => {\n if(awaitingConnectionOnPageShow === this.connectClock){\n awaitingConnectionOnPageShow = null\n this.connect()\n }\n })\n }\n this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n this.rejoinAfterMs = (tries) => {\n if(opts.rejoinAfterMs){\n return opts.rejoinAfterMs(tries)\n } else {\n return [1000, 2000, 5000][tries - 1] || 10000\n }\n }\n this.reconnectAfterMs = (tries) => {\n if(opts.reconnectAfterMs){\n return opts.reconnectAfterMs(tries)\n } else {\n return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n }\n }\n this.logger = opts.logger || null\n this.longpollerTimeout = opts.longpollerTimeout || 20000\n this.params = closure(opts.params || {})\n this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n this.vsn = opts.vsn || DEFAULT_VSN\n this.heartbeatTimeoutTimer = null\n this.heartbeatTimer = null\n this.pendingHeartbeatRef = null\n this.reconnectTimer = new Timer(() => {\n this.teardown(() => this.connect())\n }, this.reconnectAfterMs)\n }\n\n /**\n * Returns the LongPoll transport reference\n */\n getLongPollTransport(){ return LongPoll }\n\n /**\n * Disconnects and replaces the active transport\n *\n * @param {Function} newTransport - The new transport class to instantiate\n *\n */\n replaceTransport(newTransport){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.sendBuffer = []\n if(this.conn){\n this.conn.close()\n this.conn = null\n }\n this.transport = newTransport\n }\n\n /**\n * Returns the socket protocol\n *\n * @returns {string}\n */\n protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n /**\n * The fully qualifed socket url\n *\n * @returns {string}\n */\n endPointURL(){\n let uri = Ajax.appendParams(\n Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n if(uri.charAt(0) !== \"/\"){ return uri }\n if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n return `${this.protocol()}://${location.host}${uri}`\n }\n\n /**\n * Disconnects the socket\n *\n * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n *\n * @param {Function} callback - Optional callback which is called after socket is disconnected.\n * @param {integer} code - A status code for disconnection (Optional).\n * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n */\n disconnect(callback, code, reason){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.teardown(callback, code, reason)\n }\n\n /**\n *\n * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n *\n * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n */\n connect(params){\n if(params){\n console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n this.params = closure(params)\n }\n if(this.conn){ return }\n\n this.connectClock++\n this.closeWasClean = false\n this.conn = new this.transport(this.endPointURL())\n this.conn.binaryType = this.binaryType\n this.conn.timeout = this.longpollerTimeout\n this.conn.onopen = () => this.onConnOpen()\n this.conn.onerror = error => this.onConnError(error)\n this.conn.onmessage = event => this.onConnMessage(event)\n this.conn.onclose = event => this.onConnClose(event)\n }\n\n /**\n * Logs the message. Override `this.logger` for specialized logging. noops by default\n * @param {string} kind\n * @param {string} msg\n * @param {Object} data\n */\n log(kind, msg, data){ this.logger(kind, msg, data) }\n\n /**\n * Returns true if a logger has been set on this socket.\n */\n hasLogger(){ return this.logger !== null }\n\n /**\n * Registers callbacks for connection open events\n *\n * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n *\n * @param {Function} callback\n */\n onOpen(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.open.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection close events\n * @param {Function} callback\n */\n onClose(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.close.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection error events\n *\n * @example socket.onError(function(error){ alert(\"An error occurred\") })\n *\n * @param {Function} callback\n */\n onError(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.error.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection message events\n * @param {Function} callback\n */\n onMessage(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.message.push([ref, callback])\n return ref\n }\n\n /**\n * Pings the server and invokes the callback with the RTT in milliseconds\n * @param {Function} callback\n *\n * Returns true if the ping was pushed or false if unable to be pushed.\n */\n ping(callback){\n if(!this.isConnected()){ return false }\n let ref = this.makeRef()\n let startTime = Date.now()\n this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n let onMsgRef = this.onMessage(msg => {\n if(msg.ref === ref){\n this.off([onMsgRef])\n callback(Date.now() - startTime)\n }\n })\n return true\n }\n\n /**\n * @private\n */\n\n clearHeartbeats(){\n clearTimeout(this.heartbeatTimer)\n clearTimeout(this.heartbeatTimeoutTimer)\n }\n\n onConnOpen(){\n if(this.hasLogger()) {\n const endPointURL = this.endPointURL()\n const prunedURL = endPointURL.replace(/access_token=([^&#/]+)/, 'access_token=-pruned-')\n this.log(\"transport\", `connected to ${prunedURL}`)\n }\n this.closeWasClean = false\n this.establishedConnections++\n this.flushSendBuffer()\n this.reconnectTimer.reset()\n this.resetHeartbeat()\n this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n }\n\n /**\n * @private\n */\n\n heartbeatTimeout(){\n if(this.pendingHeartbeatRef){\n this.pendingHeartbeatRef = null\n if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n this.triggerChanError()\n this.closeWasClean = false\n this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n }\n }\n\n resetHeartbeat(){\n if(this.conn && this.conn.skipHeartbeat){ return }\n this.pendingHeartbeatRef = null\n this.clearHeartbeats()\n this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n }\n\n teardown(callback, code, reason){\n if(!this.conn){\n return callback && callback()\n }\n\n this.waitForBufferDone(() => {\n if(this.conn){\n if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n }\n\n this.waitForSocketClosed(() => {\n if(this.conn){\n this.conn.onopen = function (){ } // noop\n this.conn.onerror = function (){ } // noop\n this.conn.onmessage = function (){ } // noop\n this.conn.onclose = function (){ } // noop\n this.conn = null\n }\n\n callback && callback()\n })\n })\n }\n\n waitForBufferDone(callback, tries = 1){\n if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForBufferDone(callback, tries + 1)\n }, 150 * tries)\n }\n\n waitForSocketClosed(callback, tries = 1){\n if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForSocketClosed(callback, tries + 1)\n }, 150 * tries)\n }\n\n onConnClose(event){\n if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n this.triggerChanError()\n this.clearHeartbeats()\n if(!this.closeWasClean){\n this.reconnectTimer.scheduleTimeout()\n }\n this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n }\n\n /**\n * @private\n */\n onConnError(error){\n if(this.hasLogger()) this.log(\"transport\", error)\n let transportBefore = this.transport\n let establishedBefore = this.establishedConnections\n this.stateChangeCallbacks.error.forEach(([, callback]) => {\n callback(error, 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Use channel.join() before pushing events`);let s=new b(this,e,function(){return t},i);return this.canPush()?s.send():(s.startTimeout(),this.pushBuffer.push(s)),s}leave(e=this.timeout){this.rejoinTimer.reset(),this.joinPush.cancelTimeout(),this.state=m.leaving;let t=()=>{this.socket.hasLogger()&&this.socket.log("channel",`leave ${this.topic}`),this.trigger(T.close,"leave")},i=new b(this,T.leave,S({}),e);return i.receive("ok",()=>t()).receive("timeout",()=>t()),i.send(),this.canPush()||i.trigger("ok",{}),i}onMessage(e,t,i){return t}isMember(e,t,i,s){return this.topic!==e?!1:s&&s!==this.joinRef()?(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:i,joinRef:s}),!1):!0}joinRef(){return this.joinPush.ref}rejoin(e=this.timeout){this.isLeaving()||(this.socket.leaveOpenTopic(this.topic),this.state=m.joining,this.joinPush.resend(e))}trigger(e,t,i,s){let r=this.onMessage(e,t,i,s);if(t&&!r)throw new Error("channel onMessage callbacks must return the payload, modified or unmodified");let o=this.bindings.filter(n=>n.event===e);for(let n=0;n{let h=this.parseJSON(e.responseText);n&&n(h)},o&&(e.ontimeout=o),e.onprogress=()=>{},e.send(s),e}static xhrRequest(e,t,i,s,r,o,n,h){return e.open(t,i,!0),e.timeout=o,e.setRequestHeader("Content-Type",s),e.onerror=()=>h&&h(null),e.onreadystatechange=()=>{if(e.readyState===D.complete&&h){let l=this.parseJSON(e.responseText);h(l)}},n&&(e.ontimeout=n),e.send(r),e}static parseJSON(e){if(!e||e==="")return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}static serialize(e,t){let i=[];for(var s in e){if(!Object.prototype.hasOwnProperty.call(e,s))continue;let r=t?`${t}[${s}]`:s,o=e[s];typeof o=="object"?i.push(this.serialize(o,r)):i.push(encodeURIComponent(r)+"="+encodeURIComponent(o))}return i.join("&")}static appendParams(e,t){if(Object.keys(t).length===0)return e;let i=e.match(/\?/)?"&":"?";return`${e}${i}${this.serialize(t)}`}};var v=class{constructor(e){this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.reqs=new Set,this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(e),this.readyState=g.connecting,this.poll()}normalizeEndpoint(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+_.websocket),"$1/"+_.longpoll)}endpointURL(){return E.appendParams(this.pollEndpoint,{token:this.token})}closeAndRetry(e,t,i){this.close(e,t,i),this.readyState=g.connecting}ontimeout(){this.onerror("timeout"),this.closeAndRetry(1005,"timeout",!1)}isActive(){return this.readyState===g.open||this.readyState===g.connecting}poll(){this.ajax("GET",null,()=>this.ontimeout(),e=>{if(e){var{status:t,token:i,messages:s}=e;this.token=i}else t=0;switch(t){case 200:s.forEach(r=>{setTimeout(()=>this.onmessage({data:r}),0)}),this.poll();break;case 204:this.poll();break;case 410:this.readyState=g.open,this.onopen({}),this.poll();break;case 403:this.onerror(403),this.close(1008,"forbidden",!1);break;case 0:case 500:this.onerror(500),this.closeAndRetry(1011,"internal server error",500);break;default:this.onerror(t),this.close();break}})}send(e){this.ajax("POST",e,()=>this.onerror("timeout"),t=>{(!t||t.status!==200)&&(this.onerror(t&&t.status),this.closeAndRetry(1011,"internal server error",!1))})}close(e,t,i){for(let r of this.reqs)r.abort();this.readyState=g.closed;let s=Object.assign({code:1e3,reason:void 0,wasClean:!0},{code:e,reason:t,wasClean:i});typeof CloseEvent!="undefined"?this.onclose(new CloseEvent("close",s)):this.onclose(s)}ajax(e,t,i,s){let r,o=()=>{this.reqs.delete(r),i()};r=E.request(e,this.endpointURL(),"application/json",t,this.timeout,o,n=>{this.reqs.delete(r),this.isActive()&&s(n)}),this.reqs.add(r)}};var C=class{constructor(e,t={}){let i=t.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=e,this.joinRef=null,this.caller={onChange:null,onJoin:null,onLeave:null,onSync:function(){}},this.channel.on(i.state,s=>{let{onChange:r,onJoin:o,onLeave:n,onSync:h}=this.caller;this.joinRef=this.channel.joinRef(),o||n?C.syncState(this.state,s,o,n):C.synchronizeState(this.state,s,r),this.pendingDiffs.forEach(l=>{o||n?C.syncDiff(this.state,l,o,n):C.synchronizeDiff(this.state,l,r)}),this.pendingDiffs=[],h()}),this.channel.on(i.diff,s=>{let{onChange:r,onJoin:o,onLeave:n,onSync:h}=this.caller;this.inPendingSyncState()?this.pendingDiffs.push(s):(o||n?C.syncDiff(this.state,s,o,n):C.synchronizeDiff(this.state,s,r),h())})}onJoin(e){console&&console.warn&&console.warn("onJoin is deprecated, use onChange instead"),this.caller.onJoin=e}onLeave(e){console&&console.warn&&console.warn("onLeave is deprecated, use onChange instead"),this.caller.onLeave=e}onChange(e){this.caller.onChange=e}onSync(e){this.caller.onSync=e}list(e){return C.list(this.state,e)}inPendingSyncState(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}static synchronizeState(e,t,i){let s={},r={};return this.map(e,(o,n)=>{t[o]||(r[o]=n)}),this.map(t,(o,n)=>{let h=e[o];if(h){let l=n.metas.map(u=>u.phx_ref),f=h.metas.map(u=>u.phx_ref),c=n.metas.filter(u=>f.indexOf(u.phx_ref)<0),d=h.metas.filter(u=>l.indexOf(u.phx_ref)<0);c.length>0&&(s[o]=n,s[o].metas=c),d.length>0&&(c.length>0?r[o]={metas:d}:(r[o]=n,r[o].metas=d))}else s[o]=n}),this.synchronizeDiff(e,{joins:s,leaves:r},i)}static syncState(e,t,i,s){let r=this.clone(e),o={},n={};return this.map(r,(h,l)=>{t[h]||(n[h]=l)}),this.map(t,(h,l)=>{let f=r[h];if(f){let c=l.metas.map(R=>R.phx_ref),d=f.metas.map(R=>R.phx_ref),u=l.metas.filter(R=>d.indexOf(R.phx_ref)<0),p=f.metas.filter(R=>c.indexOf(R.phx_ref)<0);u.length>0&&(o[h]=l,o[h].metas=u),p.length>0&&(n[h]=this.clone(f),n[h].metas=p)}else o[h]=l}),this.syncDiff(r,{joins:o,leaves:n},i,s)}static synchronizeDiff(e,{joins:t,leaves:i},s){let r={};return this.map(t,(o,n)=>{r[o]={joinedMetas:n.metas,leftMetas:[],update:n}}),this.map(i,(o,n)=>{r[o]?r[o].leftMetas=n.metas:r[o]={joinedMetas:[],leftMetas:n.metas,update:n}}),this.map(r,(o,{joinedMetas:n,leftMetas:h,update:l})=>{let f=n.map(p=>p.phx_ref),c=h.map(p=>p.phx_ref),d=e[o],u={metas:d?d.metas:[]};u.metas=u.metas.filter(p=>f.indexOf(p.phx_ref)===-1).concat(n).filter(p=>c.indexOf(p.phx_ref)===-1),Object.keys(l).forEach(p=>{p!=="metas"&&(u[p]=l[p])}),u.metas.length===0?delete e[o]:e[o]=u,s&&s(o,d,u)}),e}static syncDiff(e,t,i,s){let{joins:r,leaves:o}=this.clone(t);return i||(i=function(){}),s||(s=function(){}),this.map(r,(n,h)=>{let l=e[n];if(e[n]=this.clone(h),l){let f=e[n].metas.map(d=>d.phx_ref),c=l.metas.filter(d=>f.indexOf(d.phx_ref)<0);e[n].metas.unshift(...c)}i(n,l,h)}),this.map(o,(n,h)=>{let l=e[n];if(!l)return;let f=h.metas.map(c=>c.phx_ref);l.metas=l.metas.filter(c=>f.indexOf(c.phx_ref)<0),s(n,l,h),l.metas.length===0&&delete e[n]}),e}static list(e,t){return t||(t=function(i,s){return s}),this.map(e,(i,s)=>t(i,s))}static map(e,t){return Object.getOwnPropertyNames(e).map(i=>t(i,e[i]))}static clone(e){return JSON.parse(JSON.stringify(e))}};var y={HEADER_LENGTH:1,META_LENGTH:4,KINDS:{push:0,reply:1,broadcast:2},encode(a,e){if(a.payload.constructor===ArrayBuffer)return e(this.binaryEncode(a));{let t=[a.join_ref,a.ref,a.topic,a.event,a.payload];return e(JSON.stringify(t))}},decode(a,e){if(a.constructor===ArrayBuffer)return e(this.binaryDecode(a));{let[t,i,s,r,o]=JSON.parse(a);return e({join_ref:t,ref:i,topic:s,event:r,payload:o})}},binaryEncode(a){let{join_ref:e,ref:t,event:i,topic:s,payload:r}=a,o=this.META_LENGTH+e.length+t.length+s.length+i.length,n=new ArrayBuffer(this.HEADER_LENGTH+o),h=new DataView(n),l=0;h.setUint8(l++,this.KINDS.push),h.setUint8(l++,e.length),h.setUint8(l++,t.length),h.setUint8(l++,s.length),h.setUint8(l++,i.length),Array.from(e,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(t,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(s,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(i,c=>h.setUint8(l++,c.charCodeAt(0)));var f=new Uint8Array(n.byteLength+r.byteLength);return f.set(new Uint8Array(n),0),f.set(new Uint8Array(r),n.byteLength),f.buffer},binaryDecode(a){let e=new DataView(a),t=e.getUint8(0),i=new TextDecoder;switch(t){case this.KINDS.push:return this.decodePush(a,e,i);case this.KINDS.reply:return this.decodeReply(a,e,i);case this.KINDS.broadcast:return this.decodeBroadcast(a,e,i)}},decodePush(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),r=e.getUint8(3),o=this.HEADER_LENGTH+this.META_LENGTH-1,n=t.decode(a.slice(o,o+i));o=o+i;let h=t.decode(a.slice(o,o+s));o=o+s;let l=t.decode(a.slice(o,o+r));o=o+r;let f=a.slice(o,a.byteLength);return{join_ref:n,ref:null,topic:h,event:l,payload:f}},decodeReply(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),r=e.getUint8(3),o=e.getUint8(4),n=this.HEADER_LENGTH+this.META_LENGTH,h=t.decode(a.slice(n,n+i));n=n+i;let l=t.decode(a.slice(n,n+s));n=n+s;let f=t.decode(a.slice(n,n+r));n=n+r;let c=t.decode(a.slice(n,n+o));n=n+o;let d=a.slice(n,a.byteLength),u={status:c,response:d};return{join_ref:h,ref:l,topic:f,event:T.reply,payload:u}},decodeBroadcast(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),r=this.HEADER_LENGTH+2,o=t.decode(a.slice(r,r+i));r=r+i;let n=t.decode(a.slice(r,r+s));r=r+s;let h=a.slice(r,a.byteLength);return{join_ref:null,ref:null,topic:o,event:n,payload:h}}};var w=class{constructor(e,t={}){this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=t.timeout||k,this.transport=t.transport||j.WebSocket||v,this.establishedConnections=0,this.defaultEncoder=y.encode.bind(y),this.defaultDecoder=y.decode.bind(y),this.closeWasClean=!1,this.binaryType=t.binaryType||"arraybuffer",this.connectClock=1,this.transport!==v?(this.encode=t.encode||this.defaultEncoder,this.decode=t.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder);let i=null;x&&x.addEventListener&&(x.addEventListener("pagehide",s=>{this.conn&&(this.disconnect(),i=this.connectClock)}),x.addEventListener("pageshow",s=>{i===this.connectClock&&(i=null,this.connect())})),this.heartbeatIntervalMs=t.heartbeatIntervalMs||3e4,this.rejoinAfterMs=s=>t.rejoinAfterMs?t.rejoinAfterMs(s):[1e3,2e3,5e3][s-1]||1e4,this.reconnectAfterMs=s=>t.reconnectAfterMs?t.reconnectAfterMs(s):[10,50,100,150,200,250,500,1e3,2e3][s-1]||5e3,this.logger=t.logger||null,this.longpollerTimeout=t.longpollerTimeout||2e4,this.params=S(t.params||{}),this.endPoint=`${e}/${_.websocket}`,this.vsn=t.vsn||O,this.heartbeatTimeoutTimer=null,this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new A(()=>{this.teardown(()=>this.connect())},this.reconnectAfterMs)}getLongPollTransport(){return v}replaceTransport(e){this.connectClock++,this.closeWasClean=!0,this.reconnectTimer.reset(),this.sendBuffer=[],this.conn&&(this.conn.close(),this.conn=null),this.transport=e}protocol(){return location.protocol.match(/^https/)?"wss":"ws"}endPointURL(){let e=E.appendParams(E.appendParams(this.endPoint,this.params()),{vsn:this.vsn});return e.charAt(0)!=="/"?e:e.charAt(1)==="/"?`${this.protocol()}:${e}`:`${this.protocol()}://${location.host}${e}`}disconnect(e,t,i){this.connectClock++,this.closeWasClean=!0,this.reconnectTimer.reset(),this.teardown(e,t,i)}connect(e){e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=S(e)),!this.conn&&(this.connectClock++,this.closeWasClean=!1,this.conn=new this.transport(this.endPointURL()),this.conn.binaryType=this.binaryType,this.conn.timeout=this.longpollerTimeout,this.conn.onopen=()=>this.onConnOpen(),this.conn.onerror=t=>this.onConnError(t),this.conn.onmessage=t=>this.onConnMessage(t),this.conn.onclose=t=>this.onConnClose(t))}log(e,t,i){this.logger(e,t,i)}hasLogger(){return this.logger!==null}onOpen(e){let t=this.makeRef();return this.stateChangeCallbacks.open.push([t,e]),t}onClose(e){let t=this.makeRef();return this.stateChangeCallbacks.close.push([t,e]),t}onError(e){let t=this.makeRef();return this.stateChangeCallbacks.error.push([t,e]),t}onMessage(e){let t=this.makeRef();return this.stateChangeCallbacks.message.push([t,e]),t}ping(e){if(!this.isConnected())return!1;let t=this.makeRef(),i=Date.now();this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:t});let s=this.onMessage(r=>{r.ref===t&&(this.off([s]),e(Date.now()-i))});return!0}clearHeartbeats(){clearTimeout(this.heartbeatTimer),clearTimeout(this.heartbeatTimeoutTimer)}onConnOpen(){this.hasLogger()&&this.log("transport",`connected to ${this.endPointURL()}`),this.closeWasClean=!1,this.establishedConnections++,this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.stateChangeCallbacks.open.forEach(([,e])=>e())}heartbeatTimeout(){this.pendingHeartbeatRef&&(this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),this.triggerChanError(),this.closeWasClean=!1,this.teardown(()=>this.reconnectTimer.scheduleTimeout(),H,"heartbeat timeout"))}resetHeartbeat(){this.conn&&this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,this.clearHeartbeats(),this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs))}teardown(e,t,i){if(!this.conn)return e&&e();this.waitForBufferDone(()=>{this.conn&&(t?this.conn.close(t,i||""):this.conn.close()),this.waitForSocketClosed(()=>{this.conn&&(this.conn.onopen=function(){},this.conn.onerror=function(){},this.conn.onmessage=function(){},this.conn.onclose=function(){},this.conn=null),e&&e()})})}waitForBufferDone(e,t=1){if(t===5||!this.conn||!this.conn.bufferedAmount){e();return}setTimeout(()=>{this.waitForBufferDone(e,t+1)},150*t)}waitForSocketClosed(e,t=1){if(t===5||!this.conn||this.conn.readyState===g.closed){e();return}setTimeout(()=>{this.waitForSocketClosed(e,t+1)},150*t)}onConnClose(e){this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),this.clearHeartbeats(),this.closeWasClean||this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(([,t])=>t(e))}onConnError(e){this.hasLogger()&&this.log("transport",e);let t=this.transport,i=this.establishedConnections;this.stateChangeCallbacks.error.forEach(([,s])=>{s(e,t,i)}),(t===this.transport||i>0)&&this.triggerChanError()}triggerChanError(){this.channels.forEach(e=>{e.isErrored()||e.isLeaving()||e.isClosed()||e.trigger(T.error)})}connectionState(){switch(this.conn&&this.conn.readyState){case g.connecting:return"connecting";case g.open:return"open";case g.closing:return"closing";default:return"closed"}}isConnected(){return this.connectionState()==="open"}remove(e){this.off(e.stateChangeRefs),this.channels=this.channels.filter(t=>t.joinRef()!==e.joinRef())}off(e){for(let t in this.stateChangeCallbacks)this.stateChangeCallbacks[t]=this.stateChangeCallbacks[t].filter(([i])=>e.indexOf(i)===-1)}channel(e,t={}){let i=new L(e,t,this);return this.channels.push(i),i}push(e){if(this.hasLogger()){let{topic:t,event:i,payload:s,ref:r,join_ref:o}=e;this.log("push",`${t} ${i} (${o}, ${r})`,s)}this.isConnected()?this.encode(e,t=>this.conn.send(t)):this.sendBuffer.push(()=>this.encode(e,t=>this.conn.send(t)))}makeRef(){let e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}sendHeartbeat(){this.pendingHeartbeatRef&&!this.isConnected()||(this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef}),this.heartbeatTimeoutTimer=setTimeout(()=>this.heartbeatTimeout(),this.heartbeatIntervalMs))}flushSendBuffer(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(e=>e()),this.sendBuffer=[])}onConnMessage(e){this.decode(e.data,t=>{let{topic:i,event:s,payload:r,ref:o,join_ref:n}=t;o&&o===this.pendingHeartbeatRef&&(this.clearHeartbeats(),this.pendingHeartbeatRef=null,this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs)),this.hasLogger()&&this.log("receive",`${r.status||""} ${i} ${s} ${o&&"("+o+")"||""}`,r);for(let h=0;h{var N=Object.defineProperty;var M=Object.getOwnPropertyDescriptor;var U=Object.getOwnPropertyNames;var $=Object.prototype.hasOwnProperty;var P=(a,e)=>{for(var t in e)N(a,t,{get:e[t],enumerable:!0})},B=(a,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let s of U(e))!$.call(a,s)&&s!==t&&N(a,s,{get:()=>e[s],enumerable:!(i=M(e,s))||i.enumerable});return a};var z=a=>B(N({},"__esModule",{value:!0}),a);var I={};P(I,{Channel:()=>x,LongPoll:()=>v,Presence:()=>g,Serializer:()=>A,Socket:()=>w});var j=a=>typeof a=="function"?a:function(){return a};var J=typeof self!="undefined"?self:null,L=typeof window!="undefined"?window:null,b=J||L||b,k="2.0.0",T={connecting:0,open:1,closing:2,closed:3},O=1e4,H=1e3,m={closed:"closed",errored:"errored",joined:"joined",joining:"joining",leaving:"leaving"},C={close:"phx_close",error:"phx_error",join:"phx_join",reply:"phx_reply",leave:"phx_leave"},_={longpoll:"longpoll",websocket:"websocket"},D={complete:4};var R=class{constructor(e,t,i,s){this.channel=e,this.event=t,this.payload=i||function(){return{}},this.receivedResp=null,this.timeout=s,this.timeoutTimer=null,this.recHooks=[],this.sent=!1}resend(e){this.timeout=e,this.reset(),this.send()}send(){this.hasReceived("timeout")||(this.startTimeout(),this.sent=!0,this.channel.socket.push({topic:this.channel.topic,event:this.event,payload:this.payload(),ref:this.ref,join_ref:this.channel.joinRef()}))}receive(e,t){return this.hasReceived(e)&&t(this.receivedResp.response),this.recHooks.push({status:e,callback:t}),this}reset(){this.cancelRefEvent(),this.ref=null,this.refEvent=null,this.receivedResp=null,this.sent=!1}matchReceive({status:e,response:t,_ref:i}){this.recHooks.filter(s=>s.status===e).forEach(s=>s.callback(t))}cancelRefEvent(){!this.refEvent||this.channel.off(this.refEvent)}cancelTimeout(){clearTimeout(this.timeoutTimer),this.timeoutTimer=null}startTimeout(){this.timeoutTimer&&this.cancelTimeout(),this.ref=this.channel.socket.makeRef(),this.refEvent=this.channel.replyEventName(this.ref),this.channel.on(this.refEvent,e=>{this.cancelRefEvent(),this.cancelTimeout(),this.receivedResp=e,this.matchReceive(e)}),this.timeoutTimer=setTimeout(()=>{this.trigger("timeout",{})},this.timeout)}hasReceived(e){return this.receivedResp&&this.receivedResp.status===e}trigger(e,t){this.channel.trigger(this.refEvent,{status:e,response:t})}};var y=class{constructor(e,t){this.callback=e,this.timerCalc=t,this.timer=null,this.tries=0}reset(){this.tries=0,clearTimeout(this.timer)}scheduleTimeout(){clearTimeout(this.timer),this.timer=setTimeout(()=>{this.tries=this.tries+1,this.callback()},this.timerCalc(this.tries+1))}};var x=class{constructor(e,t,i){this.state=m.closed,this.topic=e,this.params=j(t||{}),this.socket=i,this.bindings=[],this.bindingRef=0,this.timeout=this.socket.timeout,this.joinedOnce=!1,this.joinPush=new R(this,C.join,this.params,this.timeout),this.pushBuffer=[],this.stateChangeRefs=[],this.rejoinTimer=new y(()=>{this.socket.isConnected()&&this.rejoin()},this.socket.rejoinAfterMs),this.stateChangeRefs.push(this.socket.onError(()=>this.rejoinTimer.reset())),this.stateChangeRefs.push(this.socket.onOpen(()=>{this.rejoinTimer.reset(),this.isErrored()&&this.rejoin()})),this.joinPush.receive("ok",()=>{this.state=m.joined,this.rejoinTimer.reset(),this.pushBuffer.forEach(s=>s.send()),this.pushBuffer=[]}),this.joinPush.receive("error",()=>{this.state=m.errored,this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.onClose(()=>{this.rejoinTimer.reset(),this.socket.hasLogger()&&this.socket.log("channel",`close ${this.topic} ${this.joinRef()}`),this.state=m.closed,this.socket.remove(this)}),this.onError(s=>{this.socket.hasLogger()&&this.socket.log("channel",`error ${this.topic}`,s),this.isJoining()&&this.joinPush.reset(),this.state=m.errored,this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.joinPush.receive("timeout",()=>{this.socket.hasLogger()&&this.socket.log("channel",`timeout ${this.topic} (${this.joinRef()})`,this.joinPush.timeout),new R(this,C.leave,j({}),this.timeout).send(),this.state=m.errored,this.joinPush.reset(),this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.on(C.reply,(s,r)=>{this.trigger(this.replyEventName(r),s)})}join(e=this.timeout){if(this.joinedOnce)throw new Error("tried to join multiple times. 'join' can only be called a single time per channel instance");return this.timeout=e,this.joinedOnce=!0,this.rejoin(),this.joinPush}onClose(e){this.on(C.close,e)}onError(e){return this.on(C.error,t=>e(t))}on(e,t){let i=this.bindingRef++;return this.bindings.push({event:e,ref:i,callback:t}),i}off(e,t){this.bindings=this.bindings.filter(i=>!(i.event===e&&(typeof t=="undefined"||t===i.ref)))}canPush(){return this.socket.isConnected()&&this.isJoined()}push(e,t,i=this.timeout){if(t=t||{},!this.joinedOnce)throw new Error(`tried to push '${e}' to '${this.topic}' before joining. Use channel.join() before pushing events`);let s=new R(this,e,function(){return t},i);return this.canPush()?s.send():(s.startTimeout(),this.pushBuffer.push(s)),s}leave(e=this.timeout){this.rejoinTimer.reset(),this.joinPush.cancelTimeout(),this.state=m.leaving;let t=()=>{this.socket.hasLogger()&&this.socket.log("channel",`leave ${this.topic}`),this.trigger(C.close,"leave")},i=new R(this,C.leave,j({}),e);return i.receive("ok",()=>t()).receive("timeout",()=>t()),i.send(),this.canPush()||i.trigger("ok",{}),i}onMessage(e,t,i){return t}isMember(e,t,i,s){return this.topic!==e?!1:s&&s!==this.joinRef()?(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:i,joinRef:s}),!1):!0}joinRef(){return this.joinPush.ref}rejoin(e=this.timeout){this.isLeaving()||(this.socket.leaveOpenTopic(this.topic),this.state=m.joining,this.joinPush.resend(e))}trigger(e,t,i,s){let r=this.onMessage(e,t,i,s);if(t&&!r)throw new Error("channel onMessage callbacks must return the payload, modified or unmodified");let o=this.bindings.filter(n=>n.event===e);for(let n=0;n{let h=this.parseJSON(e.responseText);n&&n(h)},o&&(e.ontimeout=o),e.onprogress=()=>{},e.send(s),e}static xhrRequest(e,t,i,s,r,o,n,h){return e.open(t,i,!0),e.timeout=o,e.setRequestHeader("Content-Type",s),e.onerror=()=>h&&h(null),e.onreadystatechange=()=>{if(e.readyState===D.complete&&h){let l=this.parseJSON(e.responseText);h(l)}},n&&(e.ontimeout=n),e.send(r),e}static parseJSON(e){if(!e||e==="")return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}static serialize(e,t){let i=[];for(var s in e){if(!Object.prototype.hasOwnProperty.call(e,s))continue;let r=t?`${t}[${s}]`:s,o=e[s];typeof o=="object"?i.push(this.serialize(o,r)):i.push(encodeURIComponent(r)+"="+encodeURIComponent(o))}return i.join("&")}static appendParams(e,t){if(Object.keys(t).length===0)return e;let i=e.match(/\?/)?"&":"?";return`${e}${i}${this.serialize(t)}`}};var v=class{constructor(e){this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.reqs=new Set,this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(e),this.readyState=T.connecting,this.poll()}normalizeEndpoint(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+_.websocket),"$1/"+_.longpoll)}endpointURL(){return E.appendParams(this.pollEndpoint,{token:this.token})}closeAndRetry(e,t,i){this.close(e,t,i),this.readyState=T.connecting}ontimeout(){this.onerror("timeout"),this.closeAndRetry(1005,"timeout",!1)}isActive(){return this.readyState===T.open||this.readyState===T.connecting}poll(){this.ajax("GET",null,()=>this.ontimeout(),e=>{if(e){var{status:t,token:i,messages:s}=e;this.token=i}else t=0;switch(t){case 200:s.forEach(r=>{setTimeout(()=>this.onmessage({data:r}),0)}),this.poll();break;case 204:this.poll();break;case 410:this.readyState=T.open,this.onopen({}),this.poll();break;case 403:this.onerror(403),this.close(1008,"forbidden",!1);break;case 0:case 500:this.onerror(500),this.closeAndRetry(1011,"internal server error",500);break;default:this.onerror(t),this.close();break}})}send(e){this.ajax("POST",e,()=>this.onerror("timeout"),t=>{(!t||t.status!==200)&&(this.onerror(t&&t.status),this.closeAndRetry(1011,"internal server error",!1))})}close(e,t,i){for(let r of this.reqs)r.abort();this.readyState=T.closed;let s=Object.assign({code:1e3,reason:void 0,wasClean:!0},{code:e,reason:t,wasClean:i});typeof CloseEvent!="undefined"?this.onclose(new CloseEvent("close",s)):this.onclose(s)}ajax(e,t,i,s){let r,o=()=>{this.reqs.delete(r),i()};r=E.request(e,this.endpointURL(),"application/json",t,this.timeout,o,n=>{this.reqs.delete(r),this.isActive()&&s(n)}),this.reqs.add(r)}};var g=class{constructor(e,t={}){let i=t.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=e,this.joinRef=null,this.caller={onChange:null,onJoin:null,onLeave:null,onSync:function(){}},this.channel.on(i.state,s=>{let{onChange:r,onJoin:o,onLeave:n,onSync:h}=this.caller;this.joinRef=this.channel.joinRef(),o||n?g.syncState(this.state,s,o,n):g.synchronizeState(this.state,s,r),this.pendingDiffs.forEach(l=>{o||n?g.syncDiff(this.state,l,o,n):g.synchronizeDiff(this.state,l,r)}),this.pendingDiffs=[],h()}),this.channel.on(i.diff,s=>{let{onChange:r,onJoin:o,onLeave:n,onSync:h}=this.caller;this.inPendingSyncState()?this.pendingDiffs.push(s):(o||n?g.syncDiff(this.state,s,o,n):g.synchronizeDiff(this.state,s,r),h())})}onJoin(e){console&&console.warn&&console.warn("onJoin is deprecated, use onChange instead"),this.caller.onJoin=e}onLeave(e){console&&console.warn&&console.warn("onLeave is deprecated, use onChange instead"),this.caller.onLeave=e}onChange(e){this.caller.onChange=e}onSync(e){this.caller.onSync=e}list(e){return g.list(this.state,e)}inPendingSyncState(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}static synchronizeState(e,t,i){let s={},r={};return this.map(e,(o,n)=>{t[o]||(r[o]=n)}),this.map(t,(o,n)=>{let h=e[o];if(h){let l=n.metas.map(u=>u.phx_ref),f=h.metas.map(u=>u.phx_ref),c=n.metas.filter(u=>f.indexOf(u.phx_ref)<0),d=h.metas.filter(u=>l.indexOf(u.phx_ref)<0);c.length>0&&(s[o]=n,s[o].metas=c),d.length>0&&(c.length>0?r[o]={metas:d}:(r[o]=n,r[o].metas=d))}else s[o]=n}),this.synchronizeDiff(e,{joins:s,leaves:r},i)}static syncState(e,t,i,s){let r=this.clone(e),o={},n={};return this.map(r,(h,l)=>{t[h]||(n[h]=l)}),this.map(t,(h,l)=>{let f=r[h];if(f){let c=l.metas.map(S=>S.phx_ref),d=f.metas.map(S=>S.phx_ref),u=l.metas.filter(S=>d.indexOf(S.phx_ref)<0),p=f.metas.filter(S=>c.indexOf(S.phx_ref)<0);u.length>0&&(o[h]=l,o[h].metas=u),p.length>0&&(n[h]=this.clone(f),n[h].metas=p)}else o[h]=l}),this.syncDiff(r,{joins:o,leaves:n},i,s)}static synchronizeDiff(e,{joins:t,leaves:i},s){let r={};return this.map(t,(o,n)=>{r[o]={joinedMetas:n.metas,leftMetas:[],update:n}}),this.map(i,(o,n)=>{r[o]?r[o].leftMetas=n.metas:r[o]={joinedMetas:[],leftMetas:n.metas,update:n}}),this.map(r,(o,{joinedMetas:n,leftMetas:h,update:l})=>{let f=n.map(p=>p.phx_ref),c=h.map(p=>p.phx_ref),d=e[o],u={metas:d?d.metas:[]};u.metas=u.metas.filter(p=>f.indexOf(p.phx_ref)===-1).concat(n).filter(p=>c.indexOf(p.phx_ref)===-1),Object.keys(l).forEach(p=>{p!=="metas"&&(u[p]=l[p])}),u.metas.length===0?delete e[o]:e[o]=u,s&&s(o,d,u)}),e}static syncDiff(e,t,i,s){let{joins:r,leaves:o}=this.clone(t);return i||(i=function(){}),s||(s=function(){}),this.map(r,(n,h)=>{let l=e[n];if(e[n]=this.clone(h),l){let f=e[n].metas.map(d=>d.phx_ref),c=l.metas.filter(d=>f.indexOf(d.phx_ref)<0);e[n].metas.unshift(...c)}i(n,l,h)}),this.map(o,(n,h)=>{let l=e[n];if(!l)return;let f=h.metas.map(c=>c.phx_ref);l.metas=l.metas.filter(c=>f.indexOf(c.phx_ref)<0),s(n,l,h),l.metas.length===0&&delete e[n]}),e}static list(e,t){return t||(t=function(i,s){return s}),this.map(e,(i,s)=>t(i,s))}static map(e,t){return Object.getOwnPropertyNames(e).map(i=>t(i,e[i]))}static clone(e){return JSON.parse(JSON.stringify(e))}};var A={HEADER_LENGTH:1,META_LENGTH:4,KINDS:{push:0,reply:1,broadcast:2},encode(a,e){if(a.payload.constructor===ArrayBuffer)return e(this.binaryEncode(a));{let t=[a.join_ref,a.ref,a.topic,a.event,a.payload];return e(JSON.stringify(t))}},decode(a,e){if(a.constructor===ArrayBuffer)return e(this.binaryDecode(a));{let[t,i,s,r,o]=JSON.parse(a);return e({join_ref:t,ref:i,topic:s,event:r,payload:o})}},binaryEncode(a){let{join_ref:e,ref:t,event:i,topic:s,payload:r}=a,o=this.META_LENGTH+e.length+t.length+s.length+i.length,n=new ArrayBuffer(this.HEADER_LENGTH+o),h=new DataView(n),l=0;h.setUint8(l++,this.KINDS.push),h.setUint8(l++,e.length),h.setUint8(l++,t.length),h.setUint8(l++,s.length),h.setUint8(l++,i.length),Array.from(e,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(t,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(s,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(i,c=>h.setUint8(l++,c.charCodeAt(0)));var f=new Uint8Array(n.byteLength+r.byteLength);return f.set(new Uint8Array(n),0),f.set(new Uint8Array(r),n.byteLength),f.buffer},binaryDecode(a){let e=new DataView(a),t=e.getUint8(0),i=new TextDecoder;switch(t){case this.KINDS.push:return this.decodePush(a,e,i);case this.KINDS.reply:return this.decodeReply(a,e,i);case this.KINDS.broadcast:return this.decodeBroadcast(a,e,i)}},decodePush(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),r=e.getUint8(3),o=this.HEADER_LENGTH+this.META_LENGTH-1,n=t.decode(a.slice(o,o+i));o=o+i;let h=t.decode(a.slice(o,o+s));o=o+s;let l=t.decode(a.slice(o,o+r));o=o+r;let f=a.slice(o,a.byteLength);return{join_ref:n,ref:null,topic:h,event:l,payload:f}},decodeReply(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),r=e.getUint8(3),o=e.getUint8(4),n=this.HEADER_LENGTH+this.META_LENGTH,h=t.decode(a.slice(n,n+i));n=n+i;let l=t.decode(a.slice(n,n+s));n=n+s;let f=t.decode(a.slice(n,n+r));n=n+r;let c=t.decode(a.slice(n,n+o));n=n+o;let d=a.slice(n,a.byteLength),u={status:c,response:d};return{join_ref:h,ref:l,topic:f,event:C.reply,payload:u}},decodeBroadcast(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),r=this.HEADER_LENGTH+2,o=t.decode(a.slice(r,r+i));r=r+i;let n=t.decode(a.slice(r,r+s));r=r+s;let h=a.slice(r,a.byteLength);return{join_ref:null,ref:null,topic:o,event:n,payload:h}}};var w=class{constructor(e,t={}){this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=t.timeout||O,this.transport=t.transport||b.WebSocket||v,this.establishedConnections=0,this.defaultEncoder=A.encode.bind(A),this.defaultDecoder=A.decode.bind(A),this.closeWasClean=!1,this.binaryType=t.binaryType||"arraybuffer",this.connectClock=1,this.transport!==v?(this.encode=t.encode||this.defaultEncoder,this.decode=t.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder);let i=null;L&&L.addEventListener&&(L.addEventListener("pagehide",s=>{this.conn&&(this.disconnect(),i=this.connectClock)}),L.addEventListener("pageshow",s=>{i===this.connectClock&&(i=null,this.connect())})),this.heartbeatIntervalMs=t.heartbeatIntervalMs||3e4,this.rejoinAfterMs=s=>t.rejoinAfterMs?t.rejoinAfterMs(s):[1e3,2e3,5e3][s-1]||1e4,this.reconnectAfterMs=s=>t.reconnectAfterMs?t.reconnectAfterMs(s):[10,50,100,150,200,250,500,1e3,2e3][s-1]||5e3,this.logger=t.logger||null,this.longpollerTimeout=t.longpollerTimeout||2e4,this.params=j(t.params||{}),this.endPoint=`${e}/${_.websocket}`,this.vsn=t.vsn||k,this.heartbeatTimeoutTimer=null,this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new y(()=>{this.teardown(()=>this.connect())},this.reconnectAfterMs)}getLongPollTransport(){return v}replaceTransport(e){this.connectClock++,this.closeWasClean=!0,this.reconnectTimer.reset(),this.sendBuffer=[],this.conn&&(this.conn.close(),this.conn=null),this.transport=e}protocol(){return location.protocol.match(/^https/)?"wss":"ws"}endPointURL(){let e=E.appendParams(E.appendParams(this.endPoint,this.params()),{vsn:this.vsn});return e.charAt(0)!=="/"?e:e.charAt(1)==="/"?`${this.protocol()}:${e}`:`${this.protocol()}://${location.host}${e}`}disconnect(e,t,i){this.connectClock++,this.closeWasClean=!0,this.reconnectTimer.reset(),this.teardown(e,t,i)}connect(e){e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=j(e)),!this.conn&&(this.connectClock++,this.closeWasClean=!1,this.conn=new this.transport(this.endPointURL()),this.conn.binaryType=this.binaryType,this.conn.timeout=this.longpollerTimeout,this.conn.onopen=()=>this.onConnOpen(),this.conn.onerror=t=>this.onConnError(t),this.conn.onmessage=t=>this.onConnMessage(t),this.conn.onclose=t=>this.onConnClose(t))}log(e,t,i){this.logger(e,t,i)}hasLogger(){return this.logger!==null}onOpen(e){let t=this.makeRef();return this.stateChangeCallbacks.open.push([t,e]),t}onClose(e){let t=this.makeRef();return this.stateChangeCallbacks.close.push([t,e]),t}onError(e){let t=this.makeRef();return this.stateChangeCallbacks.error.push([t,e]),t}onMessage(e){let t=this.makeRef();return this.stateChangeCallbacks.message.push([t,e]),t}ping(e){if(!this.isConnected())return!1;let t=this.makeRef(),i=Date.now();this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:t});let s=this.onMessage(r=>{r.ref===t&&(this.off([s]),e(Date.now()-i))});return!0}clearHeartbeats(){clearTimeout(this.heartbeatTimer),clearTimeout(this.heartbeatTimeoutTimer)}onConnOpen(){if(this.hasLogger()){let t=this.endPointURL().replace(/access_token=([^&#/]+)/,"access_token=-pruned-");this.log("transport",`connected to ${t}`)}this.closeWasClean=!1,this.establishedConnections++,this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.stateChangeCallbacks.open.forEach(([,e])=>e())}heartbeatTimeout(){this.pendingHeartbeatRef&&(this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),this.triggerChanError(),this.closeWasClean=!1,this.teardown(()=>this.reconnectTimer.scheduleTimeout(),H,"heartbeat timeout"))}resetHeartbeat(){this.conn&&this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,this.clearHeartbeats(),this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs))}teardown(e,t,i){if(!this.conn)return e&&e();this.waitForBufferDone(()=>{this.conn&&(t?this.conn.close(t,i||""):this.conn.close()),this.waitForSocketClosed(()=>{this.conn&&(this.conn.onopen=function(){},this.conn.onerror=function(){},this.conn.onmessage=function(){},this.conn.onclose=function(){},this.conn=null),e&&e()})})}waitForBufferDone(e,t=1){if(t===5||!this.conn||!this.conn.bufferedAmount){e();return}setTimeout(()=>{this.waitForBufferDone(e,t+1)},150*t)}waitForSocketClosed(e,t=1){if(t===5||!this.conn||this.conn.readyState===T.closed){e();return}setTimeout(()=>{this.waitForSocketClosed(e,t+1)},150*t)}onConnClose(e){this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),this.clearHeartbeats(),this.closeWasClean||this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(([,t])=>t(e))}onConnError(e){this.hasLogger()&&this.log("transport",e);let t=this.transport,i=this.establishedConnections;this.stateChangeCallbacks.error.forEach(([,s])=>{s(e,t,i)}),(t===this.transport||i>0)&&this.triggerChanError()}triggerChanError(){this.channels.forEach(e=>{e.isErrored()||e.isLeaving()||e.isClosed()||e.trigger(C.error)})}connectionState(){switch(this.conn&&this.conn.readyState){case T.connecting:return"connecting";case T.open:return"open";case T.closing:return"closing";default:return"closed"}}isConnected(){return this.connectionState()==="open"}remove(e){this.off(e.stateChangeRefs),this.channels=this.channels.filter(t=>t.joinRef()!==e.joinRef())}off(e){for(let t in this.stateChangeCallbacks)this.stateChangeCallbacks[t]=this.stateChangeCallbacks[t].filter(([i])=>e.indexOf(i)===-1)}channel(e,t={}){let i=new x(e,t,this);return this.channels.push(i),i}push(e){if(this.hasLogger()){let{topic:t,event:i,payload:s,ref:r,join_ref:o}=e;this.log("push",`${t} ${i} (${o}, ${r})`,s)}this.isConnected()?this.encode(e,t=>this.conn.send(t)):this.sendBuffer.push(()=>this.encode(e,t=>this.conn.send(t)))}makeRef(){let e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}sendHeartbeat(){this.pendingHeartbeatRef&&!this.isConnected()||(this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef}),this.heartbeatTimeoutTimer=setTimeout(()=>this.heartbeatTimeout(),this.heartbeatIntervalMs))}flushSendBuffer(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(e=>e()),this.sendBuffer=[])}onConnMessage(e){this.decode(e.data,t=>{let{topic:i,event:s,payload:r,ref:o,join_ref:n}=t;o&&o===this.pendingHeartbeatRef&&(this.clearHeartbeats(),this.pendingHeartbeatRef=null,this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs)),this.hasLogger()&&this.log("receive",`${r.status||""} ${i} ${s} ${o&&"("+o+")"||""}`,r);for(let h=0;h {\n if(typeof value === \"function\"){\n return value\n } else {\n let closure = function (){ return value }\n return closure\n }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n closed: \"closed\",\n errored: \"errored\",\n joined: \"joined\",\n joining: \"joining\",\n leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n close: \"phx_close\",\n error: \"phx_error\",\n join: \"phx_join\",\n reply: \"phx_reply\",\n leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n longpoll: \"longpoll\",\n websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n constructor(channel, event, payload, timeout){\n this.channel = channel\n this.event = event\n this.payload = payload || function (){ return {} }\n this.receivedResp = null\n this.timeout = timeout\n this.timeoutTimer = null\n this.recHooks = []\n this.sent = false\n }\n\n /**\n *\n * @param {number} timeout\n */\n resend(timeout){\n this.timeout = timeout\n this.reset()\n this.send()\n }\n\n /**\n *\n */\n send(){\n if(this.hasReceived(\"timeout\")){ return }\n this.startTimeout()\n this.sent = true\n this.channel.socket.push({\n topic: this.channel.topic,\n event: this.event,\n payload: this.payload(),\n ref: this.ref,\n join_ref: this.channel.joinRef()\n })\n }\n\n /**\n *\n * @param {*} status\n * @param {*} callback\n */\n receive(status, callback){\n if(this.hasReceived(status)){\n callback(this.receivedResp.response)\n }\n\n this.recHooks.push({status, callback})\n return this\n }\n\n /**\n * @private\n */\n reset(){\n this.cancelRefEvent()\n this.ref = null\n this.refEvent = null\n this.receivedResp = null\n this.sent = false\n }\n\n /**\n * @private\n */\n matchReceive({status, response, _ref}){\n this.recHooks.filter(h => h.status === status)\n .forEach(h => h.callback(response))\n }\n\n /**\n * @private\n */\n cancelRefEvent(){\n if(!this.refEvent){ return }\n this.channel.off(this.refEvent)\n }\n\n /**\n * @private\n */\n cancelTimeout(){\n clearTimeout(this.timeoutTimer)\n this.timeoutTimer = null\n }\n\n /**\n * @private\n */\n startTimeout(){\n if(this.timeoutTimer){ this.cancelTimeout() }\n this.ref = this.channel.socket.makeRef()\n this.refEvent = this.channel.replyEventName(this.ref)\n\n this.channel.on(this.refEvent, payload => {\n this.cancelRefEvent()\n this.cancelTimeout()\n this.receivedResp = payload\n this.matchReceive(payload)\n })\n\n this.timeoutTimer = setTimeout(() => {\n this.trigger(\"timeout\", {})\n }, this.timeout)\n }\n\n /**\n * @private\n */\n hasReceived(status){\n return this.receivedResp && this.receivedResp.status === status\n }\n\n /**\n * @private\n */\n trigger(status, response){\n this.channel.trigger(this.refEvent, {status, response})\n }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n * return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n constructor(callback, timerCalc){\n this.callback = callback\n this.timerCalc = timerCalc\n this.timer = null\n this.tries = 0\n }\n\n reset(){\n this.tries = 0\n clearTimeout(this.timer)\n }\n\n /**\n * Cancels any previous scheduleTimeout and schedules callback\n */\n scheduleTimeout(){\n clearTimeout(this.timer)\n\n this.timer = setTimeout(() => {\n this.tries = this.tries + 1\n this.callback()\n }, this.timerCalc(this.tries + 1))\n }\n}\n", "import {closure} from \"./utils\"\nimport {\n CHANNEL_EVENTS,\n CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n constructor(topic, params, socket){\n this.state = CHANNEL_STATES.closed\n this.topic = topic\n this.params = closure(params || {})\n this.socket = socket\n this.bindings = []\n this.bindingRef = 0\n this.timeout = this.socket.timeout\n this.joinedOnce = false\n this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n this.pushBuffer = []\n this.stateChangeRefs = []\n\n this.rejoinTimer = new Timer(() => {\n if(this.socket.isConnected()){ this.rejoin() }\n }, this.socket.rejoinAfterMs)\n this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n this.stateChangeRefs.push(this.socket.onOpen(() => {\n this.rejoinTimer.reset()\n if(this.isErrored()){ this.rejoin() }\n })\n )\n this.joinPush.receive(\"ok\", () => {\n this.state = CHANNEL_STATES.joined\n this.rejoinTimer.reset()\n this.pushBuffer.forEach(pushEvent => pushEvent.send())\n this.pushBuffer = []\n })\n this.joinPush.receive(\"error\", () => {\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.onClose(() => {\n this.rejoinTimer.reset()\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n this.state = CHANNEL_STATES.closed\n this.socket.remove(this)\n })\n this.onError(reason => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n if(this.isJoining()){ this.joinPush.reset() }\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.joinPush.receive(\"timeout\", () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n leavePush.send()\n this.state = CHANNEL_STATES.errored\n this.joinPush.reset()\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n this.trigger(this.replyEventName(ref), payload)\n })\n }\n\n /**\n * Join the channel\n * @param {integer} timeout\n * @returns {Push}\n */\n join(timeout = this.timeout){\n if(this.joinedOnce){\n throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n } else {\n this.timeout = timeout\n this.joinedOnce = true\n this.rejoin()\n return this.joinPush\n }\n }\n\n /**\n * Hook into channel close\n * @param {Function} callback\n */\n onClose(callback){\n this.on(CHANNEL_EVENTS.close, callback)\n }\n\n /**\n * Hook into channel errors\n * @param {Function} callback\n */\n onError(callback){\n return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n }\n\n /**\n * Subscribes on channel events\n *\n * Subscription returns a ref counter, which can be used later to\n * unsubscribe the exact event listener\n *\n * @example\n * const ref1 = channel.on(\"event\", do_stuff)\n * const ref2 = channel.on(\"event\", do_other_stuff)\n * channel.off(\"event\", ref1)\n * // Since unsubscription, do_stuff won't fire,\n * // while do_other_stuff will keep firing on the \"event\"\n *\n * @param {string} event\n * @param {Function} callback\n * @returns {integer} ref\n */\n on(event, callback){\n let ref = this.bindingRef++\n this.bindings.push({event, ref, callback})\n return ref\n }\n\n /**\n * Unsubscribes off of channel events\n *\n * Use the ref returned from a channel.on() to unsubscribe one\n * handler, or pass nothing for the ref to unsubscribe all\n * handlers for the given event.\n *\n * @example\n * // Unsubscribe the do_stuff handler\n * const ref1 = channel.on(\"event\", do_stuff)\n * channel.off(\"event\", ref1)\n *\n * // Unsubscribe all handlers from event\n * channel.off(\"event\")\n *\n * @param {string} event\n * @param {integer} ref\n */\n off(event, ref){\n this.bindings = this.bindings.filter((bind) => {\n return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n })\n }\n\n /**\n * @private\n */\n canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n /**\n * Sends a message `event` to phoenix with the payload `payload`.\n * Phoenix receives this in the `handle_in(event, payload, socket)`\n * function. if phoenix replies or it times out (default 10000ms),\n * then optionally the reply can be received.\n *\n * @example\n * channel.push(\"event\")\n * .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n * .receive(\"error\", err => console.log(\"phoenix errored\", err))\n * .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n * @param {string} event\n * @param {Object} payload\n * @param {number} [timeout]\n * @returns {Push}\n */\n push(event, payload, timeout = this.timeout){\n payload = payload || {}\n if(!this.joinedOnce){\n throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n }\n let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n if(this.canPush()){\n pushEvent.send()\n } else {\n pushEvent.startTimeout()\n this.pushBuffer.push(pushEvent)\n }\n\n return pushEvent\n }\n\n /** Leaves the channel\n *\n * Unsubscribes from server events, and\n * instructs channel to terminate on server\n *\n * Triggers onClose() hooks\n *\n * To receive leave acknowledgements, use the `receive`\n * hook to bind to the server ack, ie:\n *\n * @example\n * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n *\n * @param {integer} timeout\n * @returns {Push}\n */\n leave(timeout = this.timeout){\n this.rejoinTimer.reset()\n this.joinPush.cancelTimeout()\n\n this.state = CHANNEL_STATES.leaving\n let onClose = () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n this.trigger(CHANNEL_EVENTS.close, \"leave\")\n }\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n leavePush.receive(\"ok\", () => onClose())\n .receive(\"timeout\", () => onClose())\n leavePush.send()\n if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n return leavePush\n }\n\n /**\n * Overridable message hook\n *\n * Receives all events for specialized message handling\n * before dispatching to the channel callbacks.\n *\n * Must return the payload, modified or unmodified\n * @param {string} event\n * @param {Object} payload\n * @param {integer} ref\n * @returns {Object}\n */\n onMessage(_event, payload, _ref){ return payload }\n\n /**\n * @private\n */\n isMember(topic, event, payload, joinRef){\n if(this.topic !== topic){ return false }\n\n if(joinRef && joinRef !== this.joinRef()){\n if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n return false\n } else {\n return true\n }\n }\n\n /**\n * @private\n */\n joinRef(){ return this.joinPush.ref }\n\n /**\n * @private\n */\n rejoin(timeout = this.timeout){\n if(this.isLeaving()){ return }\n this.socket.leaveOpenTopic(this.topic)\n this.state = CHANNEL_STATES.joining\n this.joinPush.resend(timeout)\n }\n\n /**\n * @private\n */\n trigger(event, payload, ref, joinRef){\n let handledPayload = this.onMessage(event, payload, ref, joinRef)\n if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n for(let i = 0; i < eventBindings.length; i++){\n let bind = eventBindings[i]\n bind.callback(handledPayload, ref, joinRef || this.joinRef())\n }\n }\n\n /**\n * @private\n */\n replyEventName(ref){ return `chan_reply_${ref}` }\n\n /**\n * @private\n */\n isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n /**\n * @private\n */\n isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n /**\n * @private\n */\n isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n /**\n * @private\n */\n isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n /**\n * @private\n */\n isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n global,\n XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n if(global.XDomainRequest){\n let req = new global.XDomainRequest() // IE8, IE9\n return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n } else {\n let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n }\n }\n\n static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n req.timeout = timeout\n req.open(method, endPoint)\n req.onload = () => {\n let response = this.parseJSON(req.responseText)\n callback && callback(response)\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n // Work around bug in IE9 that requires an attached onprogress handler\n req.onprogress = () => { }\n\n req.send(body)\n return req\n }\n\n static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n req.open(method, endPoint, true)\n req.timeout = timeout\n req.setRequestHeader(\"Content-Type\", accept)\n req.onerror = () => callback && callback(null)\n req.onreadystatechange = () => {\n if(req.readyState === XHR_STATES.complete && callback){\n let response = this.parseJSON(req.responseText)\n callback(response)\n }\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n req.send(body)\n return req\n }\n\n static parseJSON(resp){\n if(!resp || resp === \"\"){ return null }\n\n try {\n return JSON.parse(resp)\n } catch (e){\n console && console.log(\"failed to parse JSON response\", resp)\n return null\n }\n }\n\n static serialize(obj, parentKey){\n let queryStr = []\n for(var key in obj){\n if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n let paramKey = parentKey ? `${parentKey}[${key}]` : key\n let paramVal = obj[key]\n if(typeof paramVal === \"object\"){\n queryStr.push(this.serialize(paramVal, paramKey))\n } else {\n queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n }\n }\n return queryStr.join(\"&\")\n }\n\n static appendParams(url, params){\n if(Object.keys(params).length === 0){ return url }\n\n let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n return `${url}${prefix}${this.serialize(params)}`\n }\n}\n", "import {\n SOCKET_STATES,\n TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nexport default class LongPoll {\n\n constructor(endPoint){\n this.endPoint = null\n this.token = null\n this.skipHeartbeat = true\n this.reqs = new Set()\n this.onopen = function (){ } // noop\n this.onerror = function (){ } // noop\n this.onmessage = function (){ } // noop\n this.onclose = function (){ } // noop\n this.pollEndpoint = this.normalizeEndpoint(endPoint)\n this.readyState = SOCKET_STATES.connecting\n this.poll()\n }\n\n normalizeEndpoint(endPoint){\n return (endPoint\n .replace(\"ws://\", \"http://\")\n .replace(\"wss://\", \"https://\")\n .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n }\n\n endpointURL(){\n return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n }\n\n closeAndRetry(code, reason, wasClean){\n this.close(code, reason, wasClean)\n this.readyState = SOCKET_STATES.connecting\n }\n\n ontimeout(){\n this.onerror(\"timeout\")\n this.closeAndRetry(1005, \"timeout\", false)\n }\n\n isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n poll(){\n this.ajax(\"GET\", null, () => this.ontimeout(), resp => {\n if(resp){\n var {status, token, messages} = resp\n this.token = token\n } else {\n status = 0\n }\n\n switch(status){\n case 200:\n messages.forEach(msg => {\n // Tasks are what things like event handlers, setTimeout callbacks,\n // promise resolves and more are run within.\n // In modern browsers, there are two different kinds of tasks,\n // microtasks and macrotasks.\n // Microtasks are mainly used for Promises, while macrotasks are\n // used for everything else.\n // Microtasks always have priority over macrotasks. If the JS engine\n // is looking for a task to run, it will always try to empty the\n // microtask queue before attempting to run anything from the\n // macrotask queue.\n //\n // For the WebSocket transport, messages always arrive in their own\n // event. This means that if any promises are resolved from within,\n // their callbacks will always finish execution by the time the\n // next message event handler is run.\n //\n // In order to emulate this behaviour, we need to make sure each\n // onmessage handler is run within it's own macrotask.\n setTimeout(() => this.onmessage({data: msg}), 0)\n })\n this.poll()\n break\n case 204:\n this.poll()\n break\n case 410:\n this.readyState = SOCKET_STATES.open\n this.onopen({})\n this.poll()\n break\n case 403:\n this.onerror(403)\n this.close(1008, \"forbidden\", false)\n break\n case 0:\n case 500:\n this.onerror(500)\n this.closeAndRetry(1011, \"internal server error\", 500)\n break\n default:\n this.onerror(status)\n this.close()\n break\n }\n })\n }\n\n send(body){\n this.ajax(\"POST\", body, () => this.onerror(\"timeout\"), resp => {\n if(!resp || resp.status !== 200){\n this.onerror(resp && resp.status)\n this.closeAndRetry(1011, \"internal server error\", false)\n }\n })\n }\n\n close(code, reason, wasClean){\n for(let req of this.reqs){ req.abort() }\n this.readyState = SOCKET_STATES.closed\n let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n if(typeof(CloseEvent) !== \"undefined\"){\n this.onclose(new CloseEvent(\"close\", opts))\n } else {\n this.onclose(opts)\n }\n }\n\n ajax(method, body, onCallerTimeout, callback){\n let req\n let ontimeout = () => {\n this.reqs.delete(req)\n onCallerTimeout()\n }\n req = Ajax.request(method, this.endpointURL(), \"application/json\", body, this.timeout, ontimeout, resp => {\n this.reqs.delete(req)\n if(this.isActive()){ callback(resp) }\n })\n this.reqs.add(req)\n }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n * for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n constructor(channel, opts = {}){\n let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n this.state = {}\n this.pendingDiffs = []\n this.channel = channel\n this.joinRef = null\n this.caller = {\n onChange: null,\n onJoin: null,\n onLeave: null,\n onSync: function (){ }\n }\n\n this.channel.on(events.state, newState => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n this.joinRef = this.channel.joinRef()\n if (onJoin || onLeave) {\n Presence.syncState(this.state, newState, onJoin, onLeave)\n } else {\n Presence.synchronizeState(this.state, newState, onChange)\n }\n\n this.pendingDiffs.forEach(diff => {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n })\n this.pendingDiffs = []\n onSync()\n })\n\n this.channel.on(events.diff, diff => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n if(this.inPendingSyncState()){\n this.pendingDiffs.push(diff)\n } else {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n onSync()\n }\n })\n }\n\n // @deprecated Please use onChange instead\n onJoin(callback){\n console && console.warn && console.warn('onJoin is deprecated, use onChange instead')\n this.caller.onJoin = callback\n }\n\n // @deprecated Please use onChange instead\n onLeave(callback){\n console && console.warn && console.warn('onLeave is deprecated, use onChange instead')\n this.caller.onLeave = callback\n }\n\n onChange(callback){ this.caller.onChange = callback }\n\n onSync(callback){ this.caller.onSync = callback }\n\n list(by){ return Presence.list(this.state, by) }\n\n inPendingSyncState(){\n return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n }\n\n // lower-level public static API\n\n /**\n * Used to sync the list of presences on the server with the client's state.\n * An optional `onChange` callback can be provided to react to changes in the\n * client's local presences across disconnects and reconnects with the\n * server.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeState(state, newState, onChange){\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n if(joinedMetas.length > 0){\n leaves[key] = {metas: leftMetas}\n } else {\n leaves[key] = newPresence;\n leaves[key].metas = leftMetas\n }\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.synchronizeDiff(state, {joins: joins, leaves: leaves}, onChange)\n }\n\n /**\n * Used to sync the list of presences on the server\n * with the client's state. An optional `onJoin` and `onLeave` callback can\n * be provided to react to changes in the client's local presences across\n * disconnects and reconnects with the server.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeState function instead\n */\n static syncState(currentState, newState, onJoin, onLeave){\n let state = this.clone(currentState)\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n leaves[key] = this.clone(currentPresence)\n leaves[key].metas = leftMetas\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave events from the server, as\n * they happen. Like `syncState`, `syncDiff` accepts optional `onChange`\n * callback to react to a user joining or leaving from a device.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeDiff(state, {joins, leaves}, onChange){\n const changes = {}\n this.map(joins, (key, newPresence) => {\n changes[key] = {joinedMetas: newPresence.metas, leftMetas: [], update: newPresence}\n })\n this.map(leaves, (key, leftPresence) => {\n if (changes[key]) {\n changes[key].leftMetas = leftPresence.metas;\n } else {\n changes[key] = {joinedMetas: [], leftMetas: leftPresence.metas, update: leftPresence}\n }\n })\n\n this.map(changes, (key, {joinedMetas, leftMetas, update}) => {\n const joinedRefs = joinedMetas.map(m => m.phx_ref)\n const refsToRemove = leftMetas.map(m => m.phx_ref)\n const oldPresence = state[key];\n\n const newPresence = {metas: oldPresence ? oldPresence.metas : []};\n newPresence.metas = newPresence.metas\n .filter(m => joinedRefs.indexOf(m.phx_ref) === -1)\n .concat(joinedMetas)\n .filter(p => refsToRemove.indexOf(p.phx_ref) === -1)\n\n Object.keys(update).forEach(key => {\n // metas is already handled above separately\n if (key !== \"metas\") newPresence[key] = update[key];\n })\n\n if (newPresence.metas.length === 0) {\n // Delete the presence from the state when the metas are empty\n delete state[key]\n } else {\n // Update the old presence with the new presence in one atomic\n // operation\n state[key] = newPresence;\n }\n\n // Only notify onChange when there were any changes. If there were\n // changes but the old metas and new betas are still empty then there's\n // no reason to notify onChange callback.\n if (onChange) onChange(key, oldPresence, newPresence)\n });\n\n return state;\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave\n * events from the server, as they happen. Like `syncState`, `syncDiff`\n * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n * joining or leaving from a device.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeDiff function instead\n */\n static syncDiff(state, diff, onJoin, onLeave){\n let {joins, leaves} = this.clone(diff)\n if(!onJoin){ onJoin = function (){ } }\n if(!onLeave){ onLeave = function (){ } }\n\n this.map(joins, (key, newPresence) => {\n let currentPresence = state[key]\n state[key] = this.clone(newPresence)\n if(currentPresence){\n let joinedRefs = state[key].metas.map(m => m.phx_ref)\n let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n state[key].metas.unshift(...curMetas)\n }\n onJoin(key, currentPresence, newPresence)\n })\n this.map(leaves, (key, leftPresence) => {\n let currentPresence = state[key]\n if(!currentPresence){ return }\n let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n currentPresence.metas = currentPresence.metas.filter(p => {\n return refsToRemove.indexOf(p.phx_ref) < 0\n })\n onLeave(key, currentPresence, leftPresence)\n if(currentPresence.metas.length === 0){\n delete state[key]\n }\n })\n return state\n }\n\n /**\n * Returns the array of presences, with selected metadata.\n *\n * @param {Object} presences\n * @param {Function} chooser\n *\n * @returns {Presence}\n */\n static list(presences, chooser){\n if(!chooser){ chooser = function (key, pres){ return pres } }\n\n return this.map(presences, (key, presence) => {\n return chooser(key, presence)\n })\n }\n\n // private\n\n static map(obj, func){\n return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n }\n\n static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n HEADER_LENGTH: 1,\n META_LENGTH: 4,\n KINDS: {push: 0, reply: 1, broadcast: 2},\n\n encode(msg, callback){\n if(msg.payload.constructor === ArrayBuffer){\n return callback(this.binaryEncode(msg))\n } else {\n let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n return callback(JSON.stringify(payload))\n }\n },\n\n decode(rawPayload, callback){\n if(rawPayload.constructor === ArrayBuffer){\n return callback(this.binaryDecode(rawPayload))\n } else {\n let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n return callback({join_ref, ref, topic, event, payload})\n }\n },\n\n // private\n\n binaryEncode(message){\n let {join_ref, ref, event, topic, payload} = message\n let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n let view = new DataView(header)\n let offset = 0\n\n view.setUint8(offset++, this.KINDS.push) // kind\n view.setUint8(offset++, join_ref.length)\n view.setUint8(offset++, ref.length)\n view.setUint8(offset++, topic.length)\n view.setUint8(offset++, event.length)\n Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n var combined = new Uint8Array(header.byteLength + payload.byteLength)\n combined.set(new Uint8Array(header), 0)\n combined.set(new Uint8Array(payload), header.byteLength)\n\n return combined.buffer\n },\n\n binaryDecode(buffer){\n let view = new DataView(buffer)\n let kind = view.getUint8(0)\n let decoder = new TextDecoder()\n switch(kind){\n case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n }\n },\n\n decodePush(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let topicSize = view.getUint8(2)\n let eventSize = view.getUint8(3)\n let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n },\n\n decodeReply(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let refSize = view.getUint8(2)\n let topicSize = view.getUint8(3)\n let eventSize = view.getUint8(4)\n let offset = this.HEADER_LENGTH + this.META_LENGTH\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n offset = offset + refSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n let payload = {status: event, response: data}\n return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n },\n\n decodeBroadcast(buffer, view, decoder){\n let topicSize = view.getUint8(1)\n let eventSize = view.getUint8(2)\n let offset = this.HEADER_LENGTH + 2\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n\n return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n }\n}\n", "import {\n global,\n phxWindow,\n CHANNEL_EVENTS,\n DEFAULT_TIMEOUT,\n DEFAULT_VSN,\n SOCKET_STATES,\n TRANSPORTS,\n WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n * `\"wss://example.com\"`\n * `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback.\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millsec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n * return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millsec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n * return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n * console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n*/\nexport default class Socket {\n constructor(endPoint, opts = {}){\n this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n this.channels = []\n this.sendBuffer = []\n this.ref = 0\n this.timeout = opts.timeout || DEFAULT_TIMEOUT\n this.transport = opts.transport || global.WebSocket || LongPoll\n this.establishedConnections = 0\n this.defaultEncoder = Serializer.encode.bind(Serializer)\n this.defaultDecoder = Serializer.decode.bind(Serializer)\n this.closeWasClean = false\n this.binaryType = opts.binaryType || \"arraybuffer\"\n this.connectClock = 1\n if(this.transport !== LongPoll){\n this.encode = opts.encode || this.defaultEncoder\n this.decode = opts.decode || this.defaultDecoder\n } else {\n this.encode = this.defaultEncoder\n this.decode = this.defaultDecoder\n }\n let awaitingConnectionOnPageShow = null\n if(phxWindow && phxWindow.addEventListener){\n phxWindow.addEventListener(\"pagehide\", _e => {\n if(this.conn){\n this.disconnect()\n awaitingConnectionOnPageShow = this.connectClock\n }\n })\n phxWindow.addEventListener(\"pageshow\", _e => {\n if(awaitingConnectionOnPageShow === this.connectClock){\n awaitingConnectionOnPageShow = null\n this.connect()\n }\n })\n }\n this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n this.rejoinAfterMs = (tries) => {\n if(opts.rejoinAfterMs){\n return opts.rejoinAfterMs(tries)\n } else {\n return [1000, 2000, 5000][tries - 1] || 10000\n }\n }\n this.reconnectAfterMs = (tries) => {\n if(opts.reconnectAfterMs){\n return opts.reconnectAfterMs(tries)\n } else {\n return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n }\n }\n this.logger = opts.logger || null\n this.longpollerTimeout = opts.longpollerTimeout || 20000\n this.params = closure(opts.params || {})\n this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n this.vsn = opts.vsn || DEFAULT_VSN\n this.heartbeatTimeoutTimer = null\n this.heartbeatTimer = null\n this.pendingHeartbeatRef = null\n this.reconnectTimer = new Timer(() => {\n this.teardown(() => this.connect())\n }, this.reconnectAfterMs)\n }\n\n /**\n * Returns the LongPoll transport reference\n */\n getLongPollTransport(){ return LongPoll }\n\n /**\n * Disconnects and replaces the active transport\n *\n * @param {Function} newTransport - The new transport class to instantiate\n *\n */\n replaceTransport(newTransport){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.sendBuffer = []\n if(this.conn){\n this.conn.close()\n this.conn = null\n }\n this.transport = newTransport\n }\n\n /**\n * Returns the socket protocol\n *\n * @returns {string}\n */\n protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n /**\n * The fully qualifed socket url\n *\n * @returns {string}\n */\n endPointURL(){\n let uri = Ajax.appendParams(\n Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n if(uri.charAt(0) !== \"/\"){ return uri }\n if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n return `${this.protocol()}://${location.host}${uri}`\n }\n\n /**\n * Disconnects the socket\n *\n * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n *\n * @param {Function} callback - Optional callback which is called after socket is disconnected.\n * @param {integer} code - A status code for disconnection (Optional).\n * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n */\n disconnect(callback, code, reason){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.teardown(callback, code, reason)\n }\n\n /**\n *\n * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n *\n * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n */\n connect(params){\n if(params){\n console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n this.params = closure(params)\n }\n if(this.conn){ return }\n\n this.connectClock++\n this.closeWasClean = false\n this.conn = new this.transport(this.endPointURL())\n this.conn.binaryType = this.binaryType\n this.conn.timeout = this.longpollerTimeout\n this.conn.onopen = () => this.onConnOpen()\n this.conn.onerror = error => this.onConnError(error)\n this.conn.onmessage = event => this.onConnMessage(event)\n this.conn.onclose = event => this.onConnClose(event)\n }\n\n /**\n * Logs the message. Override `this.logger` for specialized logging. noops by default\n * @param {string} kind\n * @param {string} msg\n * @param {Object} data\n */\n log(kind, msg, data){ this.logger(kind, msg, data) }\n\n /**\n * Returns true if a logger has been set on this socket.\n */\n hasLogger(){ return this.logger !== null }\n\n /**\n * Registers callbacks for connection open events\n *\n * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n *\n * @param {Function} callback\n */\n onOpen(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.open.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection close events\n * @param {Function} callback\n */\n onClose(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.close.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection error events\n *\n * @example socket.onError(function(error){ alert(\"An error occurred\") })\n *\n * @param {Function} callback\n */\n onError(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.error.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection message events\n * @param {Function} callback\n */\n onMessage(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.message.push([ref, callback])\n return ref\n }\n\n /**\n * Pings the server and invokes the callback with the RTT in milliseconds\n * @param {Function} callback\n *\n * Returns true if the ping was pushed or false if unable to be pushed.\n */\n ping(callback){\n if(!this.isConnected()){ return false }\n let ref = this.makeRef()\n let startTime = Date.now()\n this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n let onMsgRef = this.onMessage(msg => {\n if(msg.ref === ref){\n this.off([onMsgRef])\n callback(Date.now() - startTime)\n }\n })\n return true\n }\n\n /**\n * @private\n */\n\n clearHeartbeats(){\n clearTimeout(this.heartbeatTimer)\n clearTimeout(this.heartbeatTimeoutTimer)\n }\n\n onConnOpen(){\n if(this.hasLogger()) this.log(\"transport\", `connected to ${this.endPointURL()}`)\n this.closeWasClean = false\n this.establishedConnections++\n this.flushSendBuffer()\n this.reconnectTimer.reset()\n this.resetHeartbeat()\n this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n }\n\n /**\n * @private\n */\n\n heartbeatTimeout(){\n if(this.pendingHeartbeatRef){\n this.pendingHeartbeatRef = null\n if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n this.triggerChanError()\n this.closeWasClean = false\n this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n }\n }\n\n resetHeartbeat(){\n if(this.conn && this.conn.skipHeartbeat){ return }\n this.pendingHeartbeatRef = null\n this.clearHeartbeats()\n this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n }\n\n teardown(callback, code, reason){\n if(!this.conn){\n return callback && callback()\n }\n\n this.waitForBufferDone(() => {\n if(this.conn){\n if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n }\n\n this.waitForSocketClosed(() => {\n if(this.conn){\n this.conn.onopen = function (){ } // noop\n this.conn.onerror = function (){ } // noop\n this.conn.onmessage = function (){ } // noop\n this.conn.onclose = function (){ } // noop\n this.conn = null\n }\n\n callback && callback()\n })\n })\n }\n\n waitForBufferDone(callback, tries = 1){\n if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForBufferDone(callback, tries + 1)\n }, 150 * tries)\n }\n\n waitForSocketClosed(callback, tries = 1){\n if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForSocketClosed(callback, tries + 1)\n }, 150 * tries)\n }\n\n onConnClose(event){\n if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n this.triggerChanError()\n this.clearHeartbeats()\n if(!this.closeWasClean){\n this.reconnectTimer.scheduleTimeout()\n }\n this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n }\n\n /**\n * @private\n */\n onConnError(error){\n if(this.hasLogger()) this.log(\"transport\", error)\n let transportBefore = this.transport\n let establishedBefore = this.establishedConnections\n this.stateChangeCallbacks.error.forEach(([, callback]) => {\n callback(error, 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+ "sourcesContent": ["// wraps value in closure or returns closure\nexport let closure = (value) => {\n if(typeof value === \"function\"){\n return value\n } else {\n let closure = function (){ return value }\n return closure\n }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n closed: \"closed\",\n errored: \"errored\",\n joined: \"joined\",\n joining: \"joining\",\n leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n close: \"phx_close\",\n error: \"phx_error\",\n join: \"phx_join\",\n reply: \"phx_reply\",\n leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n longpoll: \"longpoll\",\n websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n constructor(channel, event, payload, timeout){\n this.channel = channel\n this.event = event\n this.payload = payload || function (){ return {} }\n this.receivedResp = null\n this.timeout = timeout\n this.timeoutTimer = null\n this.recHooks = []\n this.sent = false\n }\n\n /**\n *\n * @param {number} timeout\n */\n resend(timeout){\n this.timeout = timeout\n this.reset()\n this.send()\n }\n\n /**\n *\n */\n send(){\n if(this.hasReceived(\"timeout\")){ return }\n this.startTimeout()\n this.sent = true\n this.channel.socket.push({\n topic: this.channel.topic,\n event: this.event,\n payload: this.payload(),\n ref: this.ref,\n join_ref: this.channel.joinRef()\n })\n }\n\n /**\n *\n * @param {*} status\n * @param {*} callback\n */\n receive(status, callback){\n if(this.hasReceived(status)){\n callback(this.receivedResp.response)\n }\n\n this.recHooks.push({status, callback})\n return this\n }\n\n /**\n * @private\n */\n reset(){\n this.cancelRefEvent()\n this.ref = null\n this.refEvent = null\n this.receivedResp = null\n this.sent = false\n }\n\n /**\n * @private\n */\n matchReceive({status, response, _ref}){\n this.recHooks.filter(h => h.status === status)\n .forEach(h => h.callback(response))\n }\n\n /**\n * @private\n */\n cancelRefEvent(){\n if(!this.refEvent){ return }\n this.channel.off(this.refEvent)\n }\n\n /**\n * @private\n */\n cancelTimeout(){\n clearTimeout(this.timeoutTimer)\n this.timeoutTimer = null\n }\n\n /**\n * @private\n */\n startTimeout(){\n if(this.timeoutTimer){ this.cancelTimeout() }\n this.ref = this.channel.socket.makeRef()\n this.refEvent = this.channel.replyEventName(this.ref)\n\n this.channel.on(this.refEvent, payload => {\n this.cancelRefEvent()\n this.cancelTimeout()\n this.receivedResp = payload\n this.matchReceive(payload)\n })\n\n this.timeoutTimer = setTimeout(() => {\n this.trigger(\"timeout\", {})\n }, this.timeout)\n }\n\n /**\n * @private\n */\n hasReceived(status){\n return this.receivedResp && this.receivedResp.status === status\n }\n\n /**\n * @private\n */\n trigger(status, response){\n this.channel.trigger(this.refEvent, {status, response})\n }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n * return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n constructor(callback, timerCalc){\n this.callback = callback\n this.timerCalc = timerCalc\n this.timer = null\n this.tries = 0\n }\n\n reset(){\n this.tries = 0\n clearTimeout(this.timer)\n }\n\n /**\n * Cancels any previous scheduleTimeout and schedules callback\n */\n scheduleTimeout(){\n clearTimeout(this.timer)\n\n this.timer = setTimeout(() => {\n this.tries = this.tries + 1\n this.callback()\n }, this.timerCalc(this.tries + 1))\n }\n}\n", "import {closure} from \"./utils\"\nimport {\n CHANNEL_EVENTS,\n CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n constructor(topic, params, socket){\n this.state = CHANNEL_STATES.closed\n this.topic = topic\n this.params = closure(params || {})\n this.socket = socket\n this.bindings = []\n this.bindingRef = 0\n this.timeout = this.socket.timeout\n this.joinedOnce = false\n this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n this.pushBuffer = []\n this.stateChangeRefs = []\n\n this.rejoinTimer = new Timer(() => {\n if(this.socket.isConnected()){ this.rejoin() }\n }, this.socket.rejoinAfterMs)\n this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n this.stateChangeRefs.push(this.socket.onOpen(() => {\n this.rejoinTimer.reset()\n if(this.isErrored()){ this.rejoin() }\n })\n )\n this.joinPush.receive(\"ok\", () => {\n this.state = CHANNEL_STATES.joined\n this.rejoinTimer.reset()\n this.pushBuffer.forEach(pushEvent => pushEvent.send())\n this.pushBuffer = []\n })\n this.joinPush.receive(\"error\", () => {\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.onClose(() => {\n this.rejoinTimer.reset()\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n this.state = CHANNEL_STATES.closed\n this.socket.remove(this)\n })\n this.onError(reason => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n if(this.isJoining()){ this.joinPush.reset() }\n this.state = CHANNEL_STATES.errored\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.joinPush.receive(\"timeout\", () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n leavePush.send()\n this.state = CHANNEL_STATES.errored\n this.joinPush.reset()\n if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n })\n this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n this.trigger(this.replyEventName(ref), payload)\n })\n }\n\n /**\n * Join the channel\n * @param {integer} timeout\n * @returns {Push}\n */\n join(timeout = this.timeout){\n if(this.joinedOnce){\n throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n } else {\n this.timeout = timeout\n this.joinedOnce = true\n this.rejoin()\n return this.joinPush\n }\n }\n\n /**\n * Hook into channel close\n * @param {Function} callback\n */\n onClose(callback){\n this.on(CHANNEL_EVENTS.close, callback)\n }\n\n /**\n * Hook into channel errors\n * @param {Function} callback\n */\n onError(callback){\n return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n }\n\n /**\n * Subscribes on channel events\n *\n * Subscription returns a ref counter, which can be used later to\n * unsubscribe the exact event listener\n *\n * @example\n * const ref1 = channel.on(\"event\", do_stuff)\n * const ref2 = channel.on(\"event\", do_other_stuff)\n * channel.off(\"event\", ref1)\n * // Since unsubscription, do_stuff won't fire,\n * // while do_other_stuff will keep firing on the \"event\"\n *\n * @param {string} event\n * @param {Function} callback\n * @returns {integer} ref\n */\n on(event, callback){\n let ref = this.bindingRef++\n this.bindings.push({event, ref, callback})\n return ref\n }\n\n /**\n * Unsubscribes off of channel events\n *\n * Use the ref returned from a channel.on() to unsubscribe one\n * handler, or pass nothing for the ref to unsubscribe all\n * handlers for the given event.\n *\n * @example\n * // Unsubscribe the do_stuff handler\n * const ref1 = channel.on(\"event\", do_stuff)\n * channel.off(\"event\", ref1)\n *\n * // Unsubscribe all handlers from event\n * channel.off(\"event\")\n *\n * @param {string} event\n * @param {integer} ref\n */\n off(event, ref){\n this.bindings = this.bindings.filter((bind) => {\n return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n })\n }\n\n /**\n * @private\n */\n canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n /**\n * Sends a message `event` to phoenix with the payload `payload`.\n * Phoenix receives this in the `handle_in(event, payload, socket)`\n * function. if phoenix replies or it times out (default 10000ms),\n * then optionally the reply can be received.\n *\n * @example\n * channel.push(\"event\")\n * .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n * .receive(\"error\", err => console.log(\"phoenix errored\", err))\n * .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n * @param {string} event\n * @param {Object} payload\n * @param {number} [timeout]\n * @returns {Push}\n */\n push(event, payload, timeout = this.timeout){\n payload = payload || {}\n if(!this.joinedOnce){\n throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n }\n let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n if(this.canPush()){\n pushEvent.send()\n } else {\n pushEvent.startTimeout()\n this.pushBuffer.push(pushEvent)\n }\n\n return pushEvent\n }\n\n /** Leaves the channel\n *\n * Unsubscribes from server events, and\n * instructs channel to terminate on server\n *\n * Triggers onClose() hooks\n *\n * To receive leave acknowledgements, use the `receive`\n * hook to bind to the server ack, ie:\n *\n * @example\n * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n *\n * @param {integer} timeout\n * @returns {Push}\n */\n leave(timeout = this.timeout){\n this.rejoinTimer.reset()\n this.joinPush.cancelTimeout()\n\n this.state = CHANNEL_STATES.leaving\n let onClose = () => {\n if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n this.trigger(CHANNEL_EVENTS.close, \"leave\")\n }\n let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n leavePush.receive(\"ok\", () => onClose())\n .receive(\"timeout\", () => onClose())\n leavePush.send()\n if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n return leavePush\n }\n\n /**\n * Overridable message hook\n *\n * Receives all events for specialized message handling\n * before dispatching to the channel callbacks.\n *\n * Must return the payload, modified or unmodified\n * @param {string} event\n * @param {Object} payload\n * @param {integer} ref\n * @returns {Object}\n */\n onMessage(_event, payload, _ref){ return payload }\n\n /**\n * @private\n */\n isMember(topic, event, payload, joinRef){\n if(this.topic !== topic){ return false }\n\n if(joinRef && joinRef !== this.joinRef()){\n if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n return false\n } else {\n return true\n }\n }\n\n /**\n * @private\n */\n joinRef(){ return this.joinPush.ref }\n\n /**\n * @private\n */\n rejoin(timeout = this.timeout){\n if(this.isLeaving()){ return }\n this.socket.leaveOpenTopic(this.topic)\n this.state = CHANNEL_STATES.joining\n this.joinPush.resend(timeout)\n }\n\n /**\n * @private\n */\n trigger(event, payload, ref, joinRef){\n let handledPayload = this.onMessage(event, payload, ref, joinRef)\n if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n for(let i = 0; i < eventBindings.length; i++){\n let bind = eventBindings[i]\n bind.callback(handledPayload, ref, joinRef || this.joinRef())\n }\n }\n\n /**\n * @private\n */\n replyEventName(ref){ return `chan_reply_${ref}` }\n\n /**\n * @private\n */\n isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n /**\n * @private\n */\n isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n /**\n * @private\n */\n isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n /**\n * @private\n */\n isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n /**\n * @private\n */\n isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n global,\n XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n if(global.XDomainRequest){\n let req = new global.XDomainRequest() // IE8, IE9\n return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n } else {\n let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n }\n }\n\n static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n req.timeout = timeout\n req.open(method, endPoint)\n req.onload = () => {\n let response = this.parseJSON(req.responseText)\n callback && callback(response)\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n // Work around bug in IE9 that requires an attached onprogress handler\n req.onprogress = () => { }\n\n req.send(body)\n return req\n }\n\n static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n req.open(method, endPoint, true)\n req.timeout = timeout\n req.setRequestHeader(\"Content-Type\", accept)\n req.onerror = () => callback && callback(null)\n req.onreadystatechange = () => {\n if(req.readyState === XHR_STATES.complete && callback){\n let response = this.parseJSON(req.responseText)\n callback(response)\n }\n }\n if(ontimeout){ req.ontimeout = ontimeout }\n\n req.send(body)\n return req\n }\n\n static parseJSON(resp){\n if(!resp || resp === \"\"){ return null }\n\n try {\n return JSON.parse(resp)\n } catch (e){\n console && console.log(\"failed to parse JSON response\", resp)\n return null\n }\n }\n\n static serialize(obj, parentKey){\n let queryStr = []\n for(var key in obj){\n if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n let paramKey = parentKey ? `${parentKey}[${key}]` : key\n let paramVal = obj[key]\n if(typeof paramVal === \"object\"){\n queryStr.push(this.serialize(paramVal, paramKey))\n } else {\n queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n }\n }\n return queryStr.join(\"&\")\n }\n\n static appendParams(url, params){\n if(Object.keys(params).length === 0){ return url }\n\n let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n return `${url}${prefix}${this.serialize(params)}`\n }\n}\n", "import {\n SOCKET_STATES,\n TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nexport default class LongPoll {\n\n constructor(endPoint){\n this.endPoint = null\n this.token = null\n this.skipHeartbeat = true\n this.reqs = new Set()\n this.onopen = function (){ } // noop\n this.onerror = function (){ } // noop\n this.onmessage = function (){ } // noop\n this.onclose = function (){ } // noop\n this.pollEndpoint = this.normalizeEndpoint(endPoint)\n this.readyState = SOCKET_STATES.connecting\n this.poll()\n }\n\n normalizeEndpoint(endPoint){\n return (endPoint\n .replace(\"ws://\", \"http://\")\n .replace(\"wss://\", \"https://\")\n .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n }\n\n endpointURL(){\n return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n }\n\n closeAndRetry(code, reason, wasClean){\n this.close(code, reason, wasClean)\n this.readyState = SOCKET_STATES.connecting\n }\n\n ontimeout(){\n this.onerror(\"timeout\")\n this.closeAndRetry(1005, \"timeout\", false)\n }\n\n isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n poll(){\n this.ajax(\"GET\", null, () => this.ontimeout(), resp => {\n if(resp){\n var {status, token, messages} = resp\n this.token = token\n } else {\n status = 0\n }\n\n switch(status){\n case 200:\n messages.forEach(msg => {\n // Tasks are what things like event handlers, setTimeout callbacks,\n // promise resolves and more are run within.\n // In modern browsers, there are two different kinds of tasks,\n // microtasks and macrotasks.\n // Microtasks are mainly used for Promises, while macrotasks are\n // used for everything else.\n // Microtasks always have priority over macrotasks. If the JS engine\n // is looking for a task to run, it will always try to empty the\n // microtask queue before attempting to run anything from the\n // macrotask queue.\n //\n // For the WebSocket transport, messages always arrive in their own\n // event. This means that if any promises are resolved from within,\n // their callbacks will always finish execution by the time the\n // next message event handler is run.\n //\n // In order to emulate this behaviour, we need to make sure each\n // onmessage handler is run within it's own macrotask.\n setTimeout(() => this.onmessage({data: msg}), 0)\n })\n this.poll()\n break\n case 204:\n this.poll()\n break\n case 410:\n this.readyState = SOCKET_STATES.open\n this.onopen({})\n this.poll()\n break\n case 403:\n this.onerror(403)\n this.close(1008, \"forbidden\", false)\n break\n case 0:\n case 500:\n this.onerror(500)\n this.closeAndRetry(1011, \"internal server error\", 500)\n break\n default:\n this.onerror(status)\n this.close()\n break\n }\n })\n }\n\n send(body){\n this.ajax(\"POST\", body, () => this.onerror(\"timeout\"), resp => {\n if(!resp || resp.status !== 200){\n this.onerror(resp && resp.status)\n this.closeAndRetry(1011, \"internal server error\", false)\n }\n })\n }\n\n close(code, reason, wasClean){\n for(let req of this.reqs){ req.abort() }\n this.readyState = SOCKET_STATES.closed\n let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n if(typeof(CloseEvent) !== \"undefined\"){\n this.onclose(new CloseEvent(\"close\", opts))\n } else {\n this.onclose(opts)\n }\n }\n\n ajax(method, body, onCallerTimeout, callback){\n let req\n let ontimeout = () => {\n this.reqs.delete(req)\n onCallerTimeout()\n }\n req = Ajax.request(method, this.endpointURL(), \"application/json\", body, this.timeout, ontimeout, resp => {\n this.reqs.delete(req)\n if(this.isActive()){ callback(resp) }\n })\n this.reqs.add(req)\n }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n * for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n constructor(channel, opts = {}){\n let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n this.state = {}\n this.pendingDiffs = []\n this.channel = channel\n this.joinRef = null\n this.caller = {\n onChange: null,\n onJoin: null,\n onLeave: null,\n onSync: function (){ }\n }\n\n this.channel.on(events.state, newState => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n this.joinRef = this.channel.joinRef()\n if (onJoin || onLeave) {\n Presence.syncState(this.state, newState, onJoin, onLeave)\n } else {\n Presence.synchronizeState(this.state, newState, onChange)\n }\n\n this.pendingDiffs.forEach(diff => {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n })\n this.pendingDiffs = []\n onSync()\n })\n\n this.channel.on(events.diff, diff => {\n let {onChange, onJoin, onLeave, onSync} = this.caller\n\n if(this.inPendingSyncState()){\n this.pendingDiffs.push(diff)\n } else {\n if (onJoin || onLeave) {\n Presence.syncDiff(this.state, diff, onJoin, onLeave)\n } else {\n Presence.synchronizeDiff(this.state, diff, onChange)\n }\n onSync()\n }\n })\n }\n\n // @deprecated Please use onChange instead\n onJoin(callback){\n console && console.warn && console.warn('onJoin is deprecated, use onChange instead')\n this.caller.onJoin = callback\n }\n\n // @deprecated Please use onChange instead\n onLeave(callback){\n console && console.warn && console.warn('onLeave is deprecated, use onChange instead')\n this.caller.onLeave = callback\n }\n\n onChange(callback){ this.caller.onChange = callback }\n\n onSync(callback){ this.caller.onSync = callback }\n\n list(by){ return Presence.list(this.state, by) }\n\n inPendingSyncState(){\n return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n }\n\n // lower-level public static API\n\n /**\n * Used to sync the list of presences on the server with the client's state.\n * An optional `onChange` callback can be provided to react to changes in the\n * client's local presences across disconnects and reconnects with the\n * server.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeState(state, newState, onChange){\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n if(joinedMetas.length > 0){\n leaves[key] = {metas: leftMetas}\n } else {\n leaves[key] = newPresence;\n leaves[key].metas = leftMetas\n }\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.synchronizeDiff(state, {joins: joins, leaves: leaves}, onChange)\n }\n\n /**\n * Used to sync the list of presences on the server\n * with the client's state. An optional `onJoin` and `onLeave` callback can\n * be provided to react to changes in the client's local presences across\n * disconnects and reconnects with the server.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeState function instead\n */\n static syncState(currentState, newState, onJoin, onLeave){\n let state = this.clone(currentState)\n let joins = {}\n let leaves = {}\n\n this.map(state, (key, presence) => {\n if(!newState[key]){\n leaves[key] = presence\n }\n })\n this.map(newState, (key, newPresence) => {\n let currentPresence = state[key]\n if(currentPresence){\n let newRefs = newPresence.metas.map(m => m.phx_ref)\n let curRefs = currentPresence.metas.map(m => m.phx_ref)\n let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n if(joinedMetas.length > 0){\n joins[key] = newPresence\n joins[key].metas = joinedMetas\n }\n if(leftMetas.length > 0){\n leaves[key] = this.clone(currentPresence)\n leaves[key].metas = leftMetas\n }\n } else {\n joins[key] = newPresence\n }\n })\n return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave events from the server, as\n * they happen. Like `syncState`, `syncDiff` accepts optional `onChange`\n * callback to react to a user joining or leaving from a device.\n *\n * onChange callback will be invoked with three arguments:\n * 1. key - presence key (e.g. user-5)\n * 2. oldPresence - presence object before the sync\n * 3. newPresence - presence object after the sync\n *\n * **NOTE**: This function mutates the state object that is passed to this\n * function as the first argument.\n *\n * @returns {Presence}\n */\n static synchronizeDiff(state, {joins, leaves}, onChange){\n const changes = {}\n this.map(joins, (key, newPresence) => {\n changes[key] = {joinedMetas: newPresence.metas, leftMetas: [], update: newPresence}\n })\n this.map(leaves, (key, leftPresence) => {\n if (changes[key]) {\n changes[key].leftMetas = leftPresence.metas;\n } else {\n changes[key] = {joinedMetas: [], leftMetas: leftPresence.metas, update: leftPresence}\n }\n })\n\n this.map(changes, (key, {joinedMetas, leftMetas, update}) => {\n const joinedRefs = joinedMetas.map(m => m.phx_ref)\n const refsToRemove = leftMetas.map(m => m.phx_ref)\n const oldPresence = state[key];\n\n const newPresence = {metas: oldPresence ? oldPresence.metas : []};\n newPresence.metas = newPresence.metas\n .filter(m => joinedRefs.indexOf(m.phx_ref) === -1)\n .concat(joinedMetas)\n .filter(p => refsToRemove.indexOf(p.phx_ref) === -1)\n\n Object.keys(update).forEach(key => {\n // metas is already handled above separately\n if (key !== \"metas\") newPresence[key] = update[key];\n })\n\n if (newPresence.metas.length === 0) {\n // Delete the presence from the state when the metas are empty\n delete state[key]\n } else {\n // Update the old presence with the new presence in one atomic\n // operation\n state[key] = newPresence;\n }\n\n // Only notify onChange when there were any changes. If there were\n // changes but the old metas and new betas are still empty then there's\n // no reason to notify onChange callback.\n if (onChange) onChange(key, oldPresence, newPresence)\n });\n\n return state;\n }\n\n /**\n *\n * Used to sync a diff of presence join and leave\n * events from the server, as they happen. Like `syncState`, `syncDiff`\n * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n * joining or leaving from a device.\n *\n * @returns {Presence}\n *\n * @deprecated Use synchronizeDiff function instead\n */\n static syncDiff(state, diff, onJoin, onLeave){\n let {joins, leaves} = this.clone(diff)\n if(!onJoin){ onJoin = function (){ } }\n if(!onLeave){ onLeave = function (){ } }\n\n this.map(joins, (key, newPresence) => {\n let currentPresence = state[key]\n state[key] = this.clone(newPresence)\n if(currentPresence){\n let joinedRefs = state[key].metas.map(m => m.phx_ref)\n let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n state[key].metas.unshift(...curMetas)\n }\n onJoin(key, currentPresence, newPresence)\n })\n this.map(leaves, (key, leftPresence) => {\n let currentPresence = state[key]\n if(!currentPresence){ return }\n let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n currentPresence.metas = currentPresence.metas.filter(p => {\n return refsToRemove.indexOf(p.phx_ref) < 0\n })\n onLeave(key, currentPresence, leftPresence)\n if(currentPresence.metas.length === 0){\n delete state[key]\n }\n })\n return state\n }\n\n /**\n * Returns the array of presences, with selected metadata.\n *\n * @param {Object} presences\n * @param {Function} chooser\n *\n * @returns {Presence}\n */\n static list(presences, chooser){\n if(!chooser){ chooser = function (key, pres){ return pres } }\n\n return this.map(presences, (key, presence) => {\n return chooser(key, presence)\n })\n }\n\n // private\n\n static map(obj, func){\n return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n }\n\n static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n HEADER_LENGTH: 1,\n META_LENGTH: 4,\n KINDS: {push: 0, reply: 1, broadcast: 2},\n\n encode(msg, callback){\n if(msg.payload.constructor === ArrayBuffer){\n return callback(this.binaryEncode(msg))\n } else {\n let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n return callback(JSON.stringify(payload))\n }\n },\n\n decode(rawPayload, callback){\n if(rawPayload.constructor === ArrayBuffer){\n return callback(this.binaryDecode(rawPayload))\n } else {\n let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n return callback({join_ref, ref, topic, event, payload})\n }\n },\n\n // private\n\n binaryEncode(message){\n let {join_ref, ref, event, topic, payload} = message\n let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n let view = new DataView(header)\n let offset = 0\n\n view.setUint8(offset++, this.KINDS.push) // kind\n view.setUint8(offset++, join_ref.length)\n view.setUint8(offset++, ref.length)\n view.setUint8(offset++, topic.length)\n view.setUint8(offset++, event.length)\n Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n var combined = new Uint8Array(header.byteLength + payload.byteLength)\n combined.set(new Uint8Array(header), 0)\n combined.set(new Uint8Array(payload), header.byteLength)\n\n return combined.buffer\n },\n\n binaryDecode(buffer){\n let view = new DataView(buffer)\n let kind = view.getUint8(0)\n let decoder = new TextDecoder()\n switch(kind){\n case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n }\n },\n\n decodePush(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let topicSize = view.getUint8(2)\n let eventSize = view.getUint8(3)\n let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n },\n\n decodeReply(buffer, view, decoder){\n let joinRefSize = view.getUint8(1)\n let refSize = view.getUint8(2)\n let topicSize = view.getUint8(3)\n let eventSize = view.getUint8(4)\n let offset = this.HEADER_LENGTH + this.META_LENGTH\n let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n offset = offset + joinRefSize\n let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n offset = offset + refSize\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n let payload = {status: event, response: data}\n return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n },\n\n decodeBroadcast(buffer, view, decoder){\n let topicSize = view.getUint8(1)\n let eventSize = view.getUint8(2)\n let offset = this.HEADER_LENGTH + 2\n let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n offset = offset + topicSize\n let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n offset = offset + eventSize\n let data = buffer.slice(offset, buffer.byteLength)\n\n return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n }\n}\n", "import {\n global,\n phxWindow,\n CHANNEL_EVENTS,\n DEFAULT_TIMEOUT,\n DEFAULT_VSN,\n SOCKET_STATES,\n TRANSPORTS,\n WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n * `\"wss://example.com\"`\n * `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback.\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millsec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n * return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millsec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n * return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n * console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n*/\nexport default class Socket {\n constructor(endPoint, opts = {}){\n this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n this.channels = []\n this.sendBuffer = []\n this.ref = 0\n this.timeout = opts.timeout || DEFAULT_TIMEOUT\n this.transport = opts.transport || global.WebSocket || LongPoll\n this.establishedConnections = 0\n this.defaultEncoder = Serializer.encode.bind(Serializer)\n this.defaultDecoder = Serializer.decode.bind(Serializer)\n this.closeWasClean = false\n this.binaryType = opts.binaryType || \"arraybuffer\"\n this.connectClock = 1\n if(this.transport !== LongPoll){\n this.encode = opts.encode || this.defaultEncoder\n this.decode = opts.decode || this.defaultDecoder\n } else {\n this.encode = this.defaultEncoder\n this.decode = this.defaultDecoder\n }\n let awaitingConnectionOnPageShow = null\n if(phxWindow && phxWindow.addEventListener){\n phxWindow.addEventListener(\"pagehide\", _e => {\n if(this.conn){\n this.disconnect()\n awaitingConnectionOnPageShow = this.connectClock\n }\n })\n phxWindow.addEventListener(\"pageshow\", _e => {\n if(awaitingConnectionOnPageShow === this.connectClock){\n awaitingConnectionOnPageShow = null\n this.connect()\n }\n })\n }\n this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n this.rejoinAfterMs = (tries) => {\n if(opts.rejoinAfterMs){\n return opts.rejoinAfterMs(tries)\n } else {\n return [1000, 2000, 5000][tries - 1] || 10000\n }\n }\n this.reconnectAfterMs = (tries) => {\n if(opts.reconnectAfterMs){\n return opts.reconnectAfterMs(tries)\n } else {\n return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n }\n }\n this.logger = opts.logger || null\n this.longpollerTimeout = opts.longpollerTimeout || 20000\n this.params = closure(opts.params || {})\n this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n this.vsn = opts.vsn || DEFAULT_VSN\n this.heartbeatTimeoutTimer = null\n this.heartbeatTimer = null\n this.pendingHeartbeatRef = null\n this.reconnectTimer = new Timer(() => {\n this.teardown(() => this.connect())\n }, this.reconnectAfterMs)\n }\n\n /**\n * Returns the LongPoll transport reference\n */\n getLongPollTransport(){ return LongPoll }\n\n /**\n * Disconnects and replaces the active transport\n *\n * @param {Function} newTransport - The new transport class to instantiate\n *\n */\n replaceTransport(newTransport){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.sendBuffer = []\n if(this.conn){\n this.conn.close()\n this.conn = null\n }\n this.transport = newTransport\n }\n\n /**\n * Returns the socket protocol\n *\n * @returns {string}\n */\n protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n /**\n * The fully qualifed socket url\n *\n * @returns {string}\n */\n endPointURL(){\n let uri = Ajax.appendParams(\n Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n if(uri.charAt(0) !== \"/\"){ return uri }\n if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n return `${this.protocol()}://${location.host}${uri}`\n }\n\n /**\n * Disconnects the socket\n *\n * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n *\n * @param {Function} callback - Optional callback which is called after socket is disconnected.\n * @param {integer} code - A status code for disconnection (Optional).\n * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n */\n disconnect(callback, code, reason){\n this.connectClock++\n this.closeWasClean = true\n this.reconnectTimer.reset()\n this.teardown(callback, code, reason)\n }\n\n /**\n *\n * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n *\n * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n */\n connect(params){\n if(params){\n console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n this.params = closure(params)\n }\n if(this.conn){ return }\n\n this.connectClock++\n this.closeWasClean = false\n this.conn = new this.transport(this.endPointURL())\n this.conn.binaryType = this.binaryType\n this.conn.timeout = this.longpollerTimeout\n this.conn.onopen = () => this.onConnOpen()\n this.conn.onerror = error => this.onConnError(error)\n this.conn.onmessage = event => this.onConnMessage(event)\n this.conn.onclose = event => this.onConnClose(event)\n }\n\n /**\n * Logs the message. Override `this.logger` for specialized logging. noops by default\n * @param {string} kind\n * @param {string} msg\n * @param {Object} data\n */\n log(kind, msg, data){ this.logger(kind, msg, data) }\n\n /**\n * Returns true if a logger has been set on this socket.\n */\n hasLogger(){ return this.logger !== null }\n\n /**\n * Registers callbacks for connection open events\n *\n * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n *\n * @param {Function} callback\n */\n onOpen(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.open.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection close events\n * @param {Function} callback\n */\n onClose(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.close.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection error events\n *\n * @example socket.onError(function(error){ alert(\"An error occurred\") })\n *\n * @param {Function} callback\n */\n onError(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.error.push([ref, callback])\n return ref\n }\n\n /**\n * Registers callbacks for connection message events\n * @param {Function} callback\n */\n onMessage(callback){\n let ref = this.makeRef()\n this.stateChangeCallbacks.message.push([ref, callback])\n return ref\n }\n\n /**\n * Pings the server and invokes the callback with the RTT in milliseconds\n * @param {Function} callback\n *\n * Returns true if the ping was pushed or false if unable to be pushed.\n */\n ping(callback){\n if(!this.isConnected()){ return false }\n let ref = this.makeRef()\n let startTime = Date.now()\n this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n let onMsgRef = this.onMessage(msg => {\n if(msg.ref === ref){\n this.off([onMsgRef])\n callback(Date.now() - startTime)\n }\n })\n return true\n }\n\n /**\n * @private\n */\n\n clearHeartbeats(){\n clearTimeout(this.heartbeatTimer)\n clearTimeout(this.heartbeatTimeoutTimer)\n }\n\n onConnOpen(){\n if(this.hasLogger()) {\n const endPointURL = this.endPointURL()\n const prunedURL = endPointURL.replace(/access_token=([^&#/]+)/, 'access_token=-pruned-')\n this.log(\"transport\", `connected to ${prunedURL}`)\n }\n this.closeWasClean = false\n this.establishedConnections++\n this.flushSendBuffer()\n this.reconnectTimer.reset()\n this.resetHeartbeat()\n this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n }\n\n /**\n * @private\n */\n\n heartbeatTimeout(){\n if(this.pendingHeartbeatRef){\n this.pendingHeartbeatRef = null\n if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n this.triggerChanError()\n this.closeWasClean = false\n this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n }\n }\n\n resetHeartbeat(){\n if(this.conn && this.conn.skipHeartbeat){ return }\n this.pendingHeartbeatRef = null\n this.clearHeartbeats()\n this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n }\n\n teardown(callback, code, reason){\n if(!this.conn){\n return callback && callback()\n }\n\n this.waitForBufferDone(() => {\n if(this.conn){\n if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n }\n\n this.waitForSocketClosed(() => {\n if(this.conn){\n this.conn.onopen = function (){ } // noop\n this.conn.onerror = function (){ } // noop\n this.conn.onmessage = function (){ } // noop\n this.conn.onclose = function (){ } // noop\n this.conn = null\n }\n\n callback && callback()\n })\n })\n }\n\n waitForBufferDone(callback, tries = 1){\n if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForBufferDone(callback, tries + 1)\n }, 150 * tries)\n }\n\n waitForSocketClosed(callback, tries = 1){\n if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n callback()\n return\n }\n\n setTimeout(() => {\n this.waitForSocketClosed(callback, tries + 1)\n }, 150 * tries)\n }\n\n onConnClose(event){\n if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n this.triggerChanError()\n this.clearHeartbeats()\n if(!this.closeWasClean){\n this.reconnectTimer.scheduleTimeout()\n }\n this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n }\n\n /**\n * @private\n */\n onConnError(error){\n if(this.hasLogger()) this.log(\"transport\", error)\n let transportBefore = this.transport\n let establishedBefore = this.establishedConnections\n this.stateChangeCallbacks.error.forEach(([, callback]) => {\n callback(error, transportBefore, establishedBefore)\n })\n if(transportBefore === this.transport || establishedBefore > 0){\n this.triggerChanError()\n }\n }\n\n /**\n * @private\n */\n triggerChanError(){\n this.channels.forEach(channel => {\n if(!(channel.isErrored() || channel.isLeaving() || channel.isClosed())){\n channel.trigger(CHANNEL_EVENTS.error)\n }\n })\n }\n\n /**\n * @returns {string}\n */\n connectionState(){\n switch(this.conn && this.conn.readyState){\n case SOCKET_STATES.connecting: return \"connecting\"\n case SOCKET_STATES.open: return \"open\"\n case SOCKET_STATES.closing: return \"closing\"\n default: return \"closed\"\n }\n }\n\n /**\n * @returns {boolean}\n */\n isConnected(){ return this.connectionState() === \"open\" }\n\n /**\n * @private\n *\n * @param {Channel}\n */\n remove(channel){\n this.off(channel.stateChangeRefs)\n this.channels = this.channels.filter(c => c.joinRef() !== channel.joinRef())\n }\n\n /**\n * Removes `onOpen`, `onClose`, `onError,` and `onMessage` registrations.\n *\n * @param {refs} - list of refs returned by calls to\n * `onOpen`, `onClose`, `onError,` and `onMessage`\n */\n off(refs){\n for(let key in this.stateChangeCallbacks){\n this.stateChangeCallbacks[key] = this.stateChangeCallbacks[key].filter(([ref]) => {\n return refs.indexOf(ref) === -1\n })\n }\n }\n\n /**\n * Initiates a new channel for the given topic\n *\n * @param {string} topic\n * @param {Object} chanParams - Parameters for the channel\n * @returns {Channel}\n */\n channel(topic, chanParams = {}){\n let chan = new Channel(topic, chanParams, this)\n this.channels.push(chan)\n return chan\n }\n\n /**\n * @param {Object} data\n */\n push(data){\n if(this.hasLogger()){\n let {topic, event, payload, ref, join_ref} = data\n this.log(\"push\", `${topic} ${event} (${join_ref}, ${ref})`, payload)\n }\n\n if(this.isConnected()){\n this.encode(data, result => this.conn.send(result))\n } else {\n this.sendBuffer.push(() => this.encode(data, result => this.conn.send(result)))\n }\n }\n\n /**\n * Return the next message ref, accounting for overflows\n * @returns {string}\n */\n makeRef(){\n let newRef = this.ref + 1\n if(newRef === this.ref){ this.ref = 0 } else { this.ref = newRef }\n\n return this.ref.toString()\n }\n\n sendHeartbeat(){\n if(this.pendingHeartbeatRef && !this.isConnected()){ return }\n this.pendingHeartbeatRef = this.makeRef()\n this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: this.pendingHeartbeatRef})\n this.heartbeatTimeoutTimer = setTimeout(() => this.heartbeatTimeout(), this.heartbeatIntervalMs)\n }\n\n flushSendBuffer(){\n if(this.isConnected() && this.sendBuffer.length > 0){\n this.sendBuffer.forEach(callback => callback())\n this.sendBuffer = []\n }\n }\n\n onConnMessage(rawMessage){\n this.decode(rawMessage.data, msg => {\n let {topic, event, payload, ref, join_ref} = msg\n if(ref && ref === this.pendingHeartbeatRef){\n this.clearHeartbeats()\n this.pendingHeartbeatRef = null\n this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n }\n\n if(this.hasLogger()) this.log(\"receive\", `${payload.status || \"\"} ${topic} ${event} ${ref && \"(\" + ref + \")\" || \"\"}`, payload)\n\n for(let i = 0; i < this.channels.length; i++){\n const channel = this.channels[i]\n if(!channel.isMember(topic, event, payload, join_ref)){ continue }\n channel.trigger(event, payload, ref, join_ref)\n }\n\n for(let i = 0; i < this.stateChangeCallbacks.message.length; i++){\n let [, callback] = this.stateChangeCallbacks.message[i]\n callback(msg)\n }\n })\n }\n\n leaveOpenTopic(topic){\n let dupChannel;\n for(let i = 0; i < this.channels.length; i++){\n let c = this.channels[i];\n if (c.topic === topic && (c.isJoined() || c.isJoining())) {\n dupChannel = c;\n break;\n }\n }\n\n if(dupChannel){\n if(this.hasLogger()) this.log(\"transport\", `leaving duplicate topic \"${topic}\"`)\n dupChannel.leave()\n }\n }\n}\n"], + "mappings": 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