diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ccb89c8..498de2a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,25 @@
+# [4.3.0](https://github.com/socketio/socket.io-client/compare/4.2.0...4.3.0) (2021-10-14)
+
+An ESM bundle is now provided:
+
+```html
+
+```
+
+### Features
+
+* **typings:** add missing types for some emitter methods ([#1502](https://github.com/socketio/socket.io-client/issues/1502)) ([a9e5b85](https://github.com/socketio/socket.io-client/commit/a9e5b85580e8edca0b0fd2850c3741d3d86a96e2))
+* provide an ESM build with and without debug ([16b6569](https://github.com/socketio/socket.io-client/commit/16b65698aed766e1e645c78847f2e91bfc5b6f56))
+* migrate to rollup ([0661564](https://github.com/socketio/socket.io-client/commit/0661564dc2005b95843ddb65621b7e89af702bc0))
+
+
+
# [4.2.0](https://github.com/socketio/socket.io-client/compare/4.1.3...4.2.0) (2021-08-30)
diff --git a/dist/socket.io.esm.min.js b/dist/socket.io.esm.min.js
new file mode 100644
index 00000000..55f123d6
--- /dev/null
+++ b/dist/socket.io.esm.min.js
@@ -0,0 +1,7 @@
+/*!
+ * Socket.IO v4.3.0
+ * (c) 2014-2021 Guillermo Rauch
+ * Released under the MIT License.
+ */
+var t=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,e=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"],s=function(s){var n=s,r=s.indexOf("["),i=s.indexOf("]");-1!=r&&-1!=i&&(s=s.substring(0,r)+s.substring(r,i).replace(/:/g,";")+s.substring(i,s.length));for(var o,a,h=t.exec(s||""),c={},p=14;p--;)c[e[p]]=h[p]||"";return-1!=r&&-1!=i&&(c.source=n,c.host=c.host.substring(1,c.host.length-1).replace(/;/g,":"),c.authority=c.authority.replace("[","").replace("]","").replace(/;/g,":"),c.ipv6uri=!0),c.pathNames=function(t,e){var s=/\/{2,9}/g,n=e.replace(s,"/").split("/");"/"!=e.substr(0,1)&&0!==e.length||n.splice(0,1);"/"==e.substr(e.length-1,1)&&n.splice(n.length-1,1);return 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close"),this.transport.close()},e=()=>{this.off("upgrade",e),this.off("upgradeError",e),t()},s=()=>{this.once("upgrade",e),this.once("upgradeError",e)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(()=>{this.upgrading?s():t()})):this.upgrading?s():t()),this}onError(t){$.priorWebsocketSuccess=!1,this.emitReserved("error",t),this.onClose("transport error",t)}onClose(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),"function"==typeof removeEventListener&&removeEventListener("offline",this.offlineEventListener,!1),this.readyState="closed",this.id=null,this.emitReserved("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(t){const e=[];let s=0;const n=t.length;for(;s"function"==typeof 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t.type!==ot.BINARY_EVENT&&t.type!==ot.BINARY_ACK||(e+=t.attachments+"-"),t.nsp&&"/"!==t.nsp&&(e+=t.nsp+","),null!=t.id&&(e+=t.id),null!=t.data&&(e+=JSON.stringify(t.data)),e}encodeAsBinary(t){const e=et(t),s=this.encodeAsString(e.packet),n=e.buffers;return n.unshift(s),n}},Decoder:at});function pt(t,e,s){return t.on(e,s),function(){t.off(e,s)}}const ut=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1});class dt extends u{constructor(t,e,s){super(),this.connected=!1,this.disconnected=!0,this.receiveBuffer=[],this.sendBuffer=[],this.ids=0,this.acks={},this.flags={},this.io=t,this.nsp=e,s&&s.auth&&(this.auth=s.auth),this.io._autoConnect&&this.open()}subEvents(){if(this.subs)return;const t=this.io;this.subs=[pt(t,"open",this.onopen.bind(this)),pt(t,"packet",this.onpacket.bind(this)),pt(t,"error",this.onerror.bind(this)),pt(t,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}open(){return this.connect()}send(...t){return t.unshift("message"),this.emit.apply(this,t),this}emit(t,...e){if(ut.hasOwnProperty(t))throw new Error('"'+t+'" is a reserved event name');e.unshift(t);const s={type:ot.EVENT,data:e,options:{}};s.options.compress=!1!==this.flags.compress,"function"==typeof e[e.length-1]&&(this.acks[this.ids]=e.pop(),s.id=this.ids++);const n=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!n||!this.connected)||(this.connected?this.packet(s):this.sendBuffer.push(s)),this.flags={},this}packet(t){t.nsp=this.nsp,this.io._packet(t)}onopen(){"function"==typeof this.auth?this.auth((t=>{this.packet({type:ot.CONNECT,data:t})})):this.packet({type:ot.CONNECT,data:this.auth})}onerror(t){this.connected||this.emitReserved("connect_error",t)}onclose(t){this.connected=!1,this.disconnected=!0,delete this.id,this.emitReserved("disconnect",t)}onpacket(t){if(t.nsp===this.nsp)switch(t.type){case ot.CONNECT:if(t.data&&t.data.sid){const e=t.data.sid;this.onconnect(e)}else this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case ot.EVENT:case ot.BINARY_EVENT:this.onevent(t);break;case ot.ACK:case ot.BINARY_ACK:this.onack(t);break;case ot.DISCONNECT:this.ondisconnect();break;case ot.CONNECT_ERROR:const e=new Error(t.data.message);e.data=t.data.data,this.emitReserved("connect_error",e)}}onevent(t){const e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}emitEvent(t){if(this._anyListeners&&this._anyListeners.length){const e=this._anyListeners.slice();for(const s of e)s.apply(this,t)}super.emit.apply(this,t)}ack(t){const e=this;let s=!1;return function(...n){s||(s=!0,e.packet({type:ot.ACK,id:t,data:n}))}}onack(t){const e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}onconnect(t){this.id=t,this.connected=!0,this.disconnected=!1,this.emitBuffered(),this.emitReserved("connect")}emitBuffered(){this.receiveBuffer.forEach((t=>this.emitEvent(t))),this.receiveBuffer=[],this.sendBuffer.forEach((t=>this.packet(t))),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach((t=>t())),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:ot.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(t){return this.flags.compress=t,this}get volatile(){return this.flags.volatile=!0,this}onAny(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}prependAny(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}offAny(t){if(!this._anyListeners)return this;if(t){const e=this._anyListeners;for(let s=0;s0&&t.jitter<=1?t.jitter:0,this.attempts=0}ft.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),s=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-s:t+s}return 0|Math.min(t,this.max)},ft.prototype.reset=function(){this.attempts=0},ft.prototype.setMin=function(t){this.ms=t},ft.prototype.setMax=function(t){this.max=t},ft.prototype.setJitter=function(t){this.jitter=t};class yt extends u{constructor(t,e){var s;super(),this.nsps={},this.subs=[],t&&"object"==typeof t&&(e=t,t=void 0),(e=e||{}).path=e.path||"/socket.io",this.opts=e,p(this,e),this.reconnection(!1!==e.reconnection),this.reconnectionAttempts(e.reconnectionAttempts||1/0),this.reconnectionDelay(e.reconnectionDelay||1e3),this.reconnectionDelayMax(e.reconnectionDelayMax||5e3),this.randomizationFactor(null!==(s=e.randomizationFactor)&&void 0!==s?s:.5),this.backoff=new lt({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(null==e.timeout?2e4:e.timeout),this._readyState="closed",this.uri=t;const n=e.parser||ct;this.encoder=new n.Encoder,this.decoder=new n.Decoder,this._autoConnect=!1!==e.autoConnect,this._autoConnect&&this.open()}reconnection(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection}reconnectionAttempts(t){return void 0===t?this._reconnectionAttempts:(this._reconnectionAttempts=t,this)}reconnectionDelay(t){var e;return void 0===t?this._reconnectionDelay:(this._reconnectionDelay=t,null===(e=this.backoff)||void 0===e||e.setMin(t),this)}randomizationFactor(t){var e;return void 0===t?this._randomizationFactor:(this._randomizationFactor=t,null===(e=this.backoff)||void 0===e||e.setJitter(t),this)}reconnectionDelayMax(t){var e;return void 0===t?this._reconnectionDelayMax:(this._reconnectionDelayMax=t,null===(e=this.backoff)||void 0===e||e.setMax(t),this)}timeout(t){return arguments.length?(this._timeout=t,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}open(t){if(~this._readyState.indexOf("open"))return this;this.engine=new $(this.uri,this.opts);const e=this.engine,s=this;this._readyState="opening",this.skipReconnect=!1;const n=pt(e,"open",(function(){s.onopen(),t&&t()})),r=pt(e,"error",(e=>{s.cleanup(),s._readyState="closed",this.emitReserved("error",e),t?t(e):s.maybeReconnectOnOpen()}));if(!1!==this._timeout){const t=this._timeout;0===t&&n();const s=this.setTimeoutFn((()=>{n(),e.close(),e.emit("error",new Error("timeout"))}),t);this.opts.autoUnref&&s.unref(),this.subs.push((function(){clearTimeout(s)}))}return this.subs.push(n),this.subs.push(r),this}connect(t){return this.open(t)}onopen(){this.cleanup(),this._readyState="open",this.emitReserved("open");const t=this.engine;this.subs.push(pt(t,"ping",this.onping.bind(this)),pt(t,"data",this.ondata.bind(this)),pt(t,"error",this.onerror.bind(this)),pt(t,"close",this.onclose.bind(this)),pt(this.decoder,"decoded",this.ondecoded.bind(this)))}onping(){this.emitReserved("ping")}ondata(t){this.decoder.add(t)}ondecoded(t){this.emitReserved("packet",t)}onerror(t){this.emitReserved("error",t)}socket(t,e){let s=this.nsps[t];return s||(s=new dt(this,t,e),this.nsps[t]=s),s}_destroy(t){const e=Object.keys(this.nsps);for(const t of e){if(this.nsps[t].active)return}this._close()}_packet(t){const e=this.encoder.encode(t);for(let s=0;st())),this.subs.length=0,this.decoder.destroy()}_close(){this.skipReconnect=!0,this._reconnecting=!1,"opening"===this._readyState&&this.cleanup(),this.backoff.reset(),this._readyState="closed",this.engine&&this.engine.close()}disconnect(){return this._close()}onclose(t){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",t),this._reconnection&&!this.skipReconnect&&this.reconnect()}reconnect(){if(this._reconnecting||this.skipReconnect)return this;const t=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{const e=this.backoff.duration();this._reconnecting=!0;const s=this.setTimeoutFn((()=>{t.skipReconnect||(this.emitReserved("reconnect_attempt",t.backoff.attempts),t.skipReconnect||t.open((e=>{e?(t._reconnecting=!1,t.reconnect(),this.emitReserved("reconnect_error",e)):t.onreconnect()})))}),e);this.opts.autoUnref&&s.unref(),this.subs.push((function(){clearTimeout(s)}))}}onreconnect(){const t=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",t)}}const mt={};function gt(t,e){"object"==typeof t&&(e=t,t=void 0);const n=function(t,e="",n){let r=t;n=n||"undefined"!=typeof location&&location,null==t&&(t=n.protocol+"//"+n.host),"string"==typeof t&&("/"===t.charAt(0)&&(t="/"===t.charAt(1)?n.protocol+t:n.host+t),/^(https?|wss?):\/\//.test(t)||(t=void 0!==n?n.protocol+"//"+t:"https://"+t),r=s(t)),r.port||(/^(http|ws)$/.test(r.protocol)?r.port="80":/^(http|ws)s$/.test(r.protocol)&&(r.port="443")),r.path=r.path||"/";const i=-1!==r.host.indexOf(":")?"["+r.host+"]":r.host;return r.id=r.protocol+"://"+i+":"+r.port+e,r.href=r.protocol+"://"+i+(n&&n.port===r.port?"":":"+r.port),r}(t,(e=e||{}).path||"/socket.io"),r=n.source,i=n.id,o=n.path,a=mt[i]&&o in mt[i].nsps;let h;return e.forceNew||e["force new connection"]||!1===e.multiplex||a?h=new yt(r,e):(mt[i]||(mt[i]=new yt(r,e)),h=mt[i]),n.query&&!e.query&&(e.query=n.queryKey),h.socket(n.path,e)}export{yt as Manager,dt as Socket,gt as connect,gt as io,it as protocol};
+//# sourceMappingURL=socket.io.esm.min.js.map
diff --git a/dist/socket.io.esm.min.js.map b/dist/socket.io.esm.min.js.map
new file mode 100644
index 00000000..7e8df964
--- /dev/null
+++ b/dist/socket.io.esm.min.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"socket.io.esm.min.js","sources":["../node_modules/parseuri/index.js","../node_modules/has-cors/index.js","../node_modules/engine.io-client/build/esm/globalThis.browser.js","../node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js","../node_modules/engine.io-client/build/esm/util.js","../node_modules/@socket.io/component-emitter/index.js","../node_modules/engine.io-client/node_modules/engine.io-parser/build/esm/commons.js","../node_modules/engine.io-client/node_modules/engine.io-parser/build/esm/encodePacket.browser.js","../node_modules/engine.io-client/node_modules/base64-arraybuffer/dist/base64-arraybuffer.es5.js","../node_modules/engine.io-client/node_modules/engine.io-parser/build/esm/decodePacket.browser.js","../node_modules/engine.io-client/node_modules/engine.io-parser/build/esm/index.js","../node_modules/engine.io-client/build/esm/transport.js","../node_modules/yeast/index.js","../node_modules/parseqs/index.js","../node_modules/engine.io-client/build/esm/transports/polling.js","../node_modules/engine.io-client/build/esm/transports/polling-xhr.js","../node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js","../node_modules/engine.io-client/build/esm/transports/websocket.js","../node_modules/engine.io-client/build/esm/transports/index.js","../node_modules/engine.io-client/build/esm/socket.js","../node_modules/engine.io-client/build/esm/index.js","../node_modules/socket.io-parser/build/esm/is-binary.js","../node_modules/socket.io-parser/build/esm/binary.js","../node_modules/socket.io-parser/build/esm/index.js","../build/esm/on.js","../build/esm/socket.js","../node_modules/backo2/index.js","../build/esm/manager.js","../build/esm/index.js","../build/esm/url.js"],"sourcesContent":["/**\n * Parses an URI\n *\n * @author Steven Levithan (MIT license)\n * @api private\n */\n\nvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\n\nvar parts = [\n 'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\n\nmodule.exports = function parseuri(str) {\n var src = str,\n b = str.indexOf('['),\n e = str.indexOf(']');\n\n if (b != -1 && e != -1) {\n str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n }\n\n var m = re.exec(str || ''),\n uri = {},\n i = 14;\n\n while (i--) {\n uri[parts[i]] = m[i] || '';\n }\n\n if (b != -1 && e != -1) {\n uri.source = src;\n uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n uri.ipv6uri = true;\n }\n\n uri.pathNames = pathNames(uri, uri['path']);\n uri.queryKey = queryKey(uri, uri['query']);\n\n return uri;\n};\n\nfunction pathNames(obj, path) {\n var regx = /\\/{2,9}/g,\n names = path.replace(regx, \"/\").split(\"/\");\n\n if (path.substr(0, 1) == '/' || path.length === 0) {\n names.splice(0, 1);\n }\n if (path.substr(path.length - 1, 1) == '/') {\n names.splice(names.length - 1, 1);\n }\n\n return names;\n}\n\nfunction queryKey(uri, query) {\n var data = {};\n\n query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n if ($1) {\n data[$1] = $2;\n }\n });\n\n return data;\n}\n","\n/**\n * Module exports.\n *\n * Logic borrowed from Modernizr:\n *\n * - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n */\n\ntry {\n module.exports = typeof XMLHttpRequest !== 'undefined' &&\n 'withCredentials' in new XMLHttpRequest();\n} catch (err) {\n // if XMLHttp support is disabled in IE then it will throw\n // when trying to create\n module.exports = false;\n}\n","export default (() => {\n if (typeof self !== \"undefined\") {\n return self;\n }\n else if (typeof window !== \"undefined\") {\n return window;\n }\n else {\n return Function(\"return this\")();\n }\n})();\n","// browser shim for xmlhttprequest module\nimport hasCORS from \"has-cors\";\nimport globalThis from \"../globalThis.js\";\nexport default function (opts) {\n const xdomain = opts.xdomain;\n // XMLHttpRequest can be disabled on IE\n try {\n if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n return new XMLHttpRequest();\n }\n }\n catch (e) { }\n if (!xdomain) {\n try {\n return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n }\n catch (e) { }\n }\n}\n","import globalThis from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n return attr.reduce((acc, k) => {\n if (obj.hasOwnProperty(k)) {\n acc[k] = obj[k];\n }\n return acc;\n }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n if (opts.useNativeTimers) {\n obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n }\n else {\n obj.setTimeoutFn = setTimeout.bind(globalThis);\n obj.clearTimeoutFn = clearTimeout.bind(globalThis);\n }\n}\n","\n/**\n * Expose `Emitter`.\n */\n\nexports.Emitter = Emitter;\n\n/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nfunction Emitter(obj) {\n if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n for (var key in Emitter.prototype) {\n obj[key] = Emitter.prototype[key];\n }\n return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n this._callbacks = this._callbacks || {};\n (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n .push(fn);\n return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n function on() {\n this.off(event, on);\n fn.apply(this, arguments);\n }\n\n on.fn = fn;\n this.on(event, on);\n return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n this._callbacks = this._callbacks || {};\n\n // all\n if (0 == arguments.length) {\n this._callbacks = {};\n return this;\n }\n\n // specific event\n var callbacks = this._callbacks['$' + event];\n if (!callbacks) return this;\n\n // remove all handlers\n if (1 == arguments.length) {\n delete this._callbacks['$' + event];\n return this;\n }\n\n // remove specific handler\n var cb;\n for (var i = 0; i < callbacks.length; i++) {\n cb = callbacks[i];\n if (cb === fn || cb.fn === fn) {\n callbacks.splice(i, 1);\n break;\n }\n }\n\n // Remove event specific arrays for event types that no\n // one is subscribed for to avoid memory leak.\n if (callbacks.length === 0) {\n delete this._callbacks['$' + event];\n }\n\n return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n this._callbacks = this._callbacks || {};\n\n var args = new Array(arguments.length - 1)\n , callbacks = this._callbacks['$' + event];\n\n for (var i = 1; i < arguments.length; i++) {\n args[i - 1] = arguments[i];\n }\n\n if (callbacks) {\n callbacks = callbacks.slice(0);\n for (var i = 0, len = callbacks.length; i < len; ++i) {\n callbacks[i].apply(this, args);\n }\n }\n\n return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n this._callbacks = this._callbacks || {};\n return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n return !! this.listeners(event).length;\n};\n","const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n","import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n (typeof Blob !== \"undefined\" &&\n Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n return typeof ArrayBuffer.isView === \"function\"\n ? ArrayBuffer.isView(obj)\n : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n if (withNativeBlob && data instanceof Blob) {\n if (supportsBinary) {\n return callback(data);\n }\n else {\n return encodeBlobAsBase64(data, callback);\n }\n }\n else if (withNativeArrayBuffer &&\n (data instanceof ArrayBuffer || isView(data))) {\n if (supportsBinary) {\n return callback(data);\n }\n else {\n return encodeBlobAsBase64(new Blob([data]), callback);\n }\n }\n // plain string\n return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n const fileReader = new FileReader();\n fileReader.onload = function () {\n const content = fileReader.result.split(\",\")[1];\n callback(\"b\" + content);\n };\n return fileReader.readAsDataURL(data);\n};\nexport default encodePacket;\n","/*\n * base64-arraybuffer 1.0.1 \n * Copyright (c) 2021 Niklas von Hertzen \n * Released under MIT License\n */\nvar chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nvar lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (var i = 0; i < chars.length; i++) {\n lookup[chars.charCodeAt(i)] = i;\n}\nvar encode = function (arraybuffer) {\n var bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n for (i = 0; i < len; i += 3) {\n base64 += chars[bytes[i] >> 2];\n base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n base64 += chars[bytes[i + 2] & 63];\n }\n if (len % 3 === 2) {\n base64 = base64.substring(0, base64.length - 1) + '=';\n }\n else if (len % 3 === 1) {\n base64 = base64.substring(0, base64.length - 2) + '==';\n }\n return base64;\n};\nvar decode = function (base64) {\n var bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n if (base64[base64.length - 1] === '=') {\n bufferLength--;\n if (base64[base64.length - 2] === '=') {\n bufferLength--;\n }\n }\n var arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n for (i = 0; i < len; i += 4) {\n encoded1 = lookup[base64.charCodeAt(i)];\n encoded2 = lookup[base64.charCodeAt(i + 1)];\n encoded3 = lookup[base64.charCodeAt(i + 2)];\n encoded4 = lookup[base64.charCodeAt(i + 3)];\n bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n }\n return arraybuffer;\n};\n\nexport { decode, encode };\n//# sourceMappingURL=base64-arraybuffer.es5.js.map\n","import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"base64-arraybuffer\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst decodePacket = (encodedPacket, binaryType) => {\n if (typeof encodedPacket !== \"string\") {\n return {\n type: \"message\",\n data: mapBinary(encodedPacket, binaryType)\n };\n }\n const type = encodedPacket.charAt(0);\n if (type === \"b\") {\n return {\n type: \"message\",\n data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n };\n }\n const packetType = PACKET_TYPES_REVERSE[type];\n if (!packetType) {\n return ERROR_PACKET;\n }\n return encodedPacket.length > 1\n ? {\n type: PACKET_TYPES_REVERSE[type],\n data: encodedPacket.substring(1)\n }\n : {\n type: PACKET_TYPES_REVERSE[type]\n };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n if (withNativeArrayBuffer) {\n const decoded = decode(data);\n return mapBinary(decoded, binaryType);\n }\n else {\n return { base64: true, data }; // fallback for old browsers\n }\n};\nconst mapBinary = (data, binaryType) => {\n switch (binaryType) {\n case \"blob\":\n return data instanceof ArrayBuffer ? new Blob([data]) : data;\n case \"arraybuffer\":\n default:\n return data; // assuming the data is already an ArrayBuffer\n }\n};\nexport default decodePacket;\n","import encodePacket from \"./encodePacket.js\";\nimport decodePacket from \"./decodePacket.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n // some packets may be added to the array while encoding, so the initial length must be saved\n const length = packets.length;\n const encodedPackets = new Array(length);\n let count = 0;\n packets.forEach((packet, i) => {\n // force base64 encoding for binary packets\n encodePacket(packet, false, encodedPacket => {\n encodedPackets[i] = encodedPacket;\n if (++count === length) {\n callback(encodedPackets.join(SEPARATOR));\n }\n });\n });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n const encodedPackets = encodedPayload.split(SEPARATOR);\n const packets = [];\n for (let i = 0; i < encodedPackets.length; i++) {\n const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n packets.push(decodedPacket);\n if (decodedPacket.type === \"error\") {\n break;\n }\n }\n return packets;\n};\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n","import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nexport class Transport extends Emitter {\n /**\n * Transport abstract constructor.\n *\n * @param {Object} options.\n * @api private\n */\n constructor(opts) {\n super();\n this.writable = false;\n installTimerFunctions(this, opts);\n this.opts = opts;\n this.query = opts.query;\n this.readyState = \"\";\n this.socket = opts.socket;\n }\n /**\n * Emits an error.\n *\n * @param {String} str\n * @return {Transport} for chaining\n * @api protected\n */\n onError(msg, desc) {\n const err = new Error(msg);\n // @ts-ignore\n err.type = \"TransportError\";\n // @ts-ignore\n err.description = desc;\n super.emit(\"error\", err);\n return this;\n }\n /**\n * Opens the transport.\n *\n * @api public\n */\n open() {\n if (\"closed\" === this.readyState || \"\" === this.readyState) {\n this.readyState = \"opening\";\n this.doOpen();\n }\n return this;\n }\n /**\n * Closes the transport.\n *\n * @api public\n */\n close() {\n if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n this.doClose();\n this.onClose();\n }\n return this;\n }\n /**\n * Sends multiple packets.\n *\n * @param {Array} packets\n * @api public\n */\n send(packets) {\n if (\"open\" === this.readyState) {\n this.write(packets);\n }\n else {\n // this might happen if the transport was silently closed in the beforeunload event handler\n }\n }\n /**\n * Called upon open\n *\n * @api protected\n */\n onOpen() {\n this.readyState = \"open\";\n this.writable = true;\n super.emit(\"open\");\n }\n /**\n * Called with data.\n *\n * @param {String} data\n * @api protected\n */\n onData(data) {\n const packet = decodePacket(data, this.socket.binaryType);\n this.onPacket(packet);\n }\n /**\n * Called with a decoded packet.\n *\n * @api protected\n */\n onPacket(packet) {\n super.emit(\"packet\", packet);\n }\n /**\n * Called upon close.\n *\n * @api protected\n */\n onClose() {\n this.readyState = \"closed\";\n super.emit(\"close\");\n }\n}\n","'use strict';\n\nvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n , length = 64\n , map = {}\n , seed = 0\n , i = 0\n , prev;\n\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nfunction encode(num) {\n var encoded = '';\n\n do {\n encoded = alphabet[num % length] + encoded;\n num = Math.floor(num / length);\n } while (num > 0);\n\n return encoded;\n}\n\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nfunction decode(str) {\n var decoded = 0;\n\n for (i = 0; i < str.length; i++) {\n decoded = decoded * length + map[str.charAt(i)];\n }\n\n return decoded;\n}\n\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nfunction yeast() {\n var now = encode(+new Date());\n\n if (now !== prev) return seed = 0, prev = now;\n return now +'.'+ encode(seed++);\n}\n\n//\n// Map each character to its index.\n//\nfor (; i < length; i++) map[alphabet[i]] = i;\n\n//\n// Expose the `yeast`, `encode` and `decode` functions.\n//\nyeast.encode = encode;\nyeast.decode = decode;\nmodule.exports = yeast;\n","/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\n\nexports.encode = function (obj) {\n var str = '';\n\n for (var i in obj) {\n if (obj.hasOwnProperty(i)) {\n if (str.length) str += '&';\n str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n }\n }\n\n return str;\n};\n\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\n\nexports.decode = function(qs){\n var qry = {};\n var pairs = qs.split('&');\n for (var i = 0, l = pairs.length; i < l; i++) {\n var pair = pairs[i].split('=');\n qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n }\n return qry;\n};\n","import { Transport } from \"../transport.js\";\nimport yeast from \"yeast\";\nimport parseqs from \"parseqs\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nexport class Polling extends Transport {\n constructor() {\n super(...arguments);\n this.polling = false;\n }\n /**\n * Transport name.\n */\n get name() {\n return \"polling\";\n }\n /**\n * Opens the socket (triggers polling). We write a PING message to determine\n * when the transport is open.\n *\n * @api private\n */\n doOpen() {\n this.poll();\n }\n /**\n * Pauses polling.\n *\n * @param {Function} callback upon buffers are flushed and transport is paused\n * @api private\n */\n pause(onPause) {\n this.readyState = \"pausing\";\n const pause = () => {\n this.readyState = \"paused\";\n onPause();\n };\n if (this.polling || !this.writable) {\n let total = 0;\n if (this.polling) {\n total++;\n this.once(\"pollComplete\", function () {\n --total || pause();\n });\n }\n if (!this.writable) {\n total++;\n this.once(\"drain\", function () {\n --total || pause();\n });\n }\n }\n else {\n pause();\n }\n }\n /**\n * Starts polling cycle.\n *\n * @api public\n */\n poll() {\n this.polling = true;\n this.doPoll();\n this.emit(\"poll\");\n }\n /**\n * Overloads onData to detect payloads.\n *\n * @api private\n */\n onData(data) {\n const callback = packet => {\n // if its the first message we consider the transport open\n if (\"opening\" === this.readyState && packet.type === \"open\") {\n this.onOpen();\n }\n // if its a close packet, we close the ongoing requests\n if (\"close\" === packet.type) {\n this.onClose();\n return false;\n }\n // otherwise bypass onData and handle the message\n this.onPacket(packet);\n };\n // decode payload\n decodePayload(data, this.socket.binaryType).forEach(callback);\n // if an event did not trigger closing\n if (\"closed\" !== this.readyState) {\n // if we got data we're not polling\n this.polling = false;\n this.emit(\"pollComplete\");\n if (\"open\" === this.readyState) {\n this.poll();\n }\n else {\n }\n }\n }\n /**\n * For polling, send a close packet.\n *\n * @api private\n */\n doClose() {\n const close = () => {\n this.write([{ type: \"close\" }]);\n };\n if (\"open\" === this.readyState) {\n close();\n }\n else {\n // in case we're trying to close while\n // handshaking is in progress (GH-164)\n this.once(\"open\", close);\n }\n }\n /**\n * Writes a packets payload.\n *\n * @param {Array} data packets\n * @param {Function} drain callback\n * @api private\n */\n write(packets) {\n this.writable = false;\n encodePayload(packets, data => {\n this.doWrite(data, () => {\n this.writable = true;\n this.emit(\"drain\");\n });\n });\n }\n /**\n * Generates uri for connection.\n *\n * @api private\n */\n uri() {\n let query = this.query || {};\n const schema = this.opts.secure ? \"https\" : \"http\";\n let port = \"\";\n // cache busting is forced\n if (false !== this.opts.timestampRequests) {\n query[this.opts.timestampParam] = yeast();\n }\n if (!this.supportsBinary && !query.sid) {\n query.b64 = 1;\n }\n // avoid port if default for schema\n if (this.opts.port &&\n ((\"https\" === schema && Number(this.opts.port) !== 443) ||\n (\"http\" === schema && Number(this.opts.port) !== 80))) {\n port = \":\" + this.opts.port;\n }\n const encodedQuery = parseqs.encode(query);\n const ipv6 = this.opts.hostname.indexOf(\":\") !== -1;\n return (schema +\n \"://\" +\n (ipv6 ? \"[\" + this.opts.hostname + \"]\" : this.opts.hostname) +\n port +\n this.opts.path +\n (encodedQuery.length ? \"?\" + encodedQuery : \"\"));\n }\n}\n","/* global attachEvent */\nimport XMLHttpRequest from \"./xmlhttprequest.js\";\nimport globalThis from \"../globalThis.js\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { Polling } from \"./polling.js\";\n/**\n * Empty function\n */\nfunction empty() { }\nconst hasXHR2 = (function () {\n const xhr = new XMLHttpRequest({\n xdomain: false\n });\n return null != xhr.responseType;\n})();\nexport class XHR extends Polling {\n /**\n * XHR Polling constructor.\n *\n * @param {Object} opts\n * @api public\n */\n constructor(opts) {\n super(opts);\n if (typeof location !== \"undefined\") {\n const isSSL = \"https:\" === location.protocol;\n let port = location.port;\n // some user agents have empty `location.port`\n if (!port) {\n port = isSSL ? \"443\" : \"80\";\n }\n this.xd =\n (typeof location !== \"undefined\" &&\n opts.hostname !== location.hostname) ||\n port !== opts.port;\n this.xs = opts.secure !== isSSL;\n }\n /**\n * XHR supports binary\n */\n const forceBase64 = opts && opts.forceBase64;\n this.supportsBinary = hasXHR2 && !forceBase64;\n }\n /**\n * Creates a request.\n *\n * @param {String} method\n * @api private\n */\n request(opts = {}) {\n Object.assign(opts, { xd: this.xd, xs: this.xs }, this.opts);\n return new Request(this.uri(), opts);\n }\n /**\n * Sends data.\n *\n * @param {String} data to send.\n * @param {Function} called upon flush.\n * @api private\n */\n doWrite(data, fn) {\n const req = this.request({\n method: \"POST\",\n data: data\n });\n req.on(\"success\", fn);\n req.on(\"error\", err => {\n this.onError(\"xhr post error\", err);\n });\n }\n /**\n * Starts a poll cycle.\n *\n * @api private\n */\n doPoll() {\n const req = this.request();\n req.on(\"data\", this.onData.bind(this));\n req.on(\"error\", err => {\n this.onError(\"xhr poll error\", err);\n });\n this.pollXhr = req;\n }\n}\nexport class Request extends Emitter {\n /**\n * Request constructor\n *\n * @param {Object} options\n * @api public\n */\n constructor(uri, opts) {\n super();\n installTimerFunctions(this, opts);\n this.opts = opts;\n this.method = opts.method || \"GET\";\n this.uri = uri;\n this.async = false !== opts.async;\n this.data = undefined !== opts.data ? opts.data : null;\n this.create();\n }\n /**\n * Creates the XHR object and sends the request.\n *\n * @api private\n */\n create() {\n const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n opts.xdomain = !!this.opts.xd;\n opts.xscheme = !!this.opts.xs;\n const xhr = (this.xhr = new XMLHttpRequest(opts));\n try {\n xhr.open(this.method, this.uri, this.async);\n try {\n if (this.opts.extraHeaders) {\n xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n for (let i in this.opts.extraHeaders) {\n if (this.opts.extraHeaders.hasOwnProperty(i)) {\n xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n }\n }\n }\n }\n catch (e) { }\n if (\"POST\" === this.method) {\n try {\n xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n }\n catch (e) { }\n }\n try {\n xhr.setRequestHeader(\"Accept\", \"*/*\");\n }\n catch (e) { }\n // ie6 check\n if (\"withCredentials\" in xhr) {\n xhr.withCredentials = this.opts.withCredentials;\n }\n if (this.opts.requestTimeout) {\n xhr.timeout = this.opts.requestTimeout;\n }\n xhr.onreadystatechange = () => {\n if (4 !== xhr.readyState)\n return;\n if (200 === xhr.status || 1223 === xhr.status) {\n this.onLoad();\n }\n else {\n // make sure the `error` event handler that's user-set\n // does not throw in the same tick and gets caught here\n this.setTimeoutFn(() => {\n this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n }, 0);\n }\n };\n xhr.send(this.data);\n }\n catch (e) {\n // Need to defer since .create() is called directly from the constructor\n // and thus the 'error' event can only be only bound *after* this exception\n // occurs. Therefore, also, we cannot throw here at all.\n this.setTimeoutFn(() => {\n this.onError(e);\n }, 0);\n return;\n }\n if (typeof document !== \"undefined\") {\n this.index = Request.requestsCount++;\n Request.requests[this.index] = this;\n }\n }\n /**\n * Called upon successful response.\n *\n * @api private\n */\n onSuccess() {\n this.emit(\"success\");\n this.cleanup();\n }\n /**\n * Called if we have data.\n *\n * @api private\n */\n onData(data) {\n this.emit(\"data\", data);\n this.onSuccess();\n }\n /**\n * Called upon error.\n *\n * @api private\n */\n onError(err) {\n this.emit(\"error\", err);\n this.cleanup(true);\n }\n /**\n * Cleans up house.\n *\n * @api private\n */\n cleanup(fromError) {\n if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n return;\n }\n this.xhr.onreadystatechange = empty;\n if (fromError) {\n try {\n this.xhr.abort();\n }\n catch (e) { }\n }\n if (typeof document !== \"undefined\") {\n delete Request.requests[this.index];\n }\n this.xhr = null;\n }\n /**\n * Called upon load.\n *\n * @api private\n */\n onLoad() {\n const data = this.xhr.responseText;\n if (data !== null) {\n this.onData(data);\n }\n }\n /**\n * Aborts the request.\n *\n * @api public\n */\n abort() {\n this.cleanup();\n }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n // @ts-ignore\n if (typeof attachEvent === \"function\") {\n // @ts-ignore\n attachEvent(\"onunload\", unloadHandler);\n }\n else if (typeof addEventListener === \"function\") {\n const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n addEventListener(terminationEvent, unloadHandler, false);\n }\n}\nfunction unloadHandler() {\n for (let i in Request.requests) {\n if (Request.requests.hasOwnProperty(i)) {\n Request.requests[i].abort();\n }\n }\n}\n","import globalThis from \"../globalThis.js\";\nexport const nextTick = (() => {\n const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n if (isPromiseAvailable) {\n return cb => Promise.resolve().then(cb);\n }\n else {\n return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n","import { Transport } from \"../transport.js\";\nimport parseqs from \"parseqs\";\nimport yeast from \"yeast\";\nimport { pick } from \"../util.js\";\nimport { defaultBinaryType, nextTick, usingBrowserWebSocket, WebSocket } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n typeof navigator.product === \"string\" &&\n navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n /**\n * WebSocket transport constructor.\n *\n * @api {Object} connection options\n * @api public\n */\n constructor(opts) {\n super(opts);\n this.supportsBinary = !opts.forceBase64;\n }\n /**\n * Transport name.\n *\n * @api public\n */\n get name() {\n return \"websocket\";\n }\n /**\n * Opens socket.\n *\n * @api private\n */\n doOpen() {\n if (!this.check()) {\n // let probe timeout\n return;\n }\n const uri = this.uri();\n const protocols = this.opts.protocols;\n // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n const opts = isReactNative\n ? {}\n : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n if (this.opts.extraHeaders) {\n opts.headers = this.opts.extraHeaders;\n }\n try {\n this.ws =\n usingBrowserWebSocket && !isReactNative\n ? protocols\n ? new WebSocket(uri, protocols)\n : new WebSocket(uri)\n : new WebSocket(uri, protocols, opts);\n }\n catch (err) {\n return this.emit(\"error\", err);\n }\n this.ws.binaryType = this.socket.binaryType || defaultBinaryType;\n this.addEventListeners();\n }\n /**\n * Adds event listeners to the socket\n *\n * @api private\n */\n addEventListeners() {\n this.ws.onopen = () => {\n if (this.opts.autoUnref) {\n this.ws._socket.unref();\n }\n this.onOpen();\n };\n this.ws.onclose = this.onClose.bind(this);\n this.ws.onmessage = ev => this.onData(ev.data);\n this.ws.onerror = e => this.onError(\"websocket error\", e);\n }\n /**\n * Writes data to socket.\n *\n * @param {Array} array of packets.\n * @api private\n */\n write(packets) {\n this.writable = false;\n // encodePacket efficient as it uses WS framing\n // no need for encodePayload\n for (let i = 0; i < packets.length; i++) {\n const packet = packets[i];\n const lastPacket = i === packets.length - 1;\n encodePacket(packet, this.supportsBinary, data => {\n // always create a new object (GH-437)\n const opts = {};\n if (!usingBrowserWebSocket) {\n if (packet.options) {\n opts.compress = packet.options.compress;\n }\n if (this.opts.perMessageDeflate) {\n const len = \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n if (len < this.opts.perMessageDeflate.threshold) {\n opts.compress = false;\n }\n }\n }\n // Sometimes the websocket has already been closed but the browser didn't\n // have a chance of informing us about it yet, in that case send will\n // throw an error\n try {\n if (usingBrowserWebSocket) {\n // TypeError is thrown when passing the second argument on Safari\n this.ws.send(data);\n }\n else {\n this.ws.send(data, opts);\n }\n }\n catch (e) {\n }\n if (lastPacket) {\n // fake drain\n // defer to next tick to allow Socket to clear writeBuffer\n nextTick(() => {\n this.writable = true;\n this.emit(\"drain\");\n }, this.setTimeoutFn);\n }\n });\n }\n }\n /**\n * Closes socket.\n *\n * @api private\n */\n doClose() {\n if (typeof this.ws !== \"undefined\") {\n this.ws.close();\n this.ws = null;\n }\n }\n /**\n * Generates uri for connection.\n *\n * @api private\n */\n uri() {\n let query = this.query || {};\n const schema = this.opts.secure ? \"wss\" : \"ws\";\n let port = \"\";\n // avoid port if default for schema\n if (this.opts.port &&\n ((\"wss\" === schema && Number(this.opts.port) !== 443) ||\n (\"ws\" === schema && Number(this.opts.port) !== 80))) {\n port = \":\" + this.opts.port;\n }\n // append timestamp to URI\n if (this.opts.timestampRequests) {\n query[this.opts.timestampParam] = yeast();\n }\n // communicate binary support capabilities\n if (!this.supportsBinary) {\n query.b64 = 1;\n }\n const encodedQuery = parseqs.encode(query);\n const ipv6 = this.opts.hostname.indexOf(\":\") !== -1;\n return (schema +\n \"://\" +\n (ipv6 ? \"[\" + this.opts.hostname + \"]\" : this.opts.hostname) +\n port +\n this.opts.path +\n (encodedQuery.length ? \"?\" + encodedQuery : \"\"));\n }\n /**\n * Feature detection for WebSocket.\n *\n * @return {Boolean} whether this transport is available.\n * @api public\n */\n check() {\n return (!!WebSocket &&\n !(\"__initialize\" in WebSocket && this.name === WS.prototype.name));\n }\n}\n","import { XHR } from \"./polling-xhr.js\";\nimport { WS } from \"./websocket.js\";\nexport const transports = {\n websocket: WS,\n polling: XHR\n};\n","import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions } from \"./util.js\";\nimport parseqs from \"parseqs\";\nimport parseuri from \"parseuri\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nexport class Socket extends Emitter {\n /**\n * Socket constructor.\n *\n * @param {String|Object} uri or options\n * @param {Object} opts - options\n * @api public\n */\n constructor(uri, opts = {}) {\n super();\n if (uri && \"object\" === typeof uri) {\n opts = uri;\n uri = null;\n }\n if (uri) {\n uri = parseuri(uri);\n opts.hostname = uri.host;\n opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n opts.port = uri.port;\n if (uri.query)\n opts.query = uri.query;\n }\n else if (opts.host) {\n opts.hostname = parseuri(opts.host).host;\n }\n installTimerFunctions(this, opts);\n this.secure =\n null != opts.secure\n ? opts.secure\n : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n if (opts.hostname && !opts.port) {\n // if no port is specified manually, use the protocol default\n opts.port = this.secure ? \"443\" : \"80\";\n }\n this.hostname =\n opts.hostname ||\n (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n this.port =\n opts.port ||\n (typeof location !== \"undefined\" && location.port\n ? location.port\n : this.secure\n ? \"443\"\n : \"80\");\n this.transports = opts.transports || [\"polling\", \"websocket\"];\n this.readyState = \"\";\n this.writeBuffer = [];\n this.prevBufferLen = 0;\n this.opts = Object.assign({\n path: \"/engine.io\",\n agent: false,\n withCredentials: false,\n upgrade: true,\n timestampParam: \"t\",\n rememberUpgrade: false,\n rejectUnauthorized: true,\n perMessageDeflate: {\n threshold: 1024\n },\n transportOptions: {},\n closeOnBeforeunload: true\n }, opts);\n this.opts.path = this.opts.path.replace(/\\/$/, \"\") + \"/\";\n if (typeof this.opts.query === \"string\") {\n this.opts.query = parseqs.decode(this.opts.query);\n }\n // set on handshake\n this.id = null;\n this.upgrades = null;\n this.pingInterval = null;\n this.pingTimeout = null;\n // set on heartbeat\n this.pingTimeoutTimer = null;\n if (typeof addEventListener === \"function\") {\n if (this.opts.closeOnBeforeunload) {\n // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n // closed/reloaded)\n addEventListener(\"beforeunload\", () => {\n if (this.transport) {\n // silently close the transport\n this.transport.removeAllListeners();\n this.transport.close();\n }\n }, false);\n }\n if (this.hostname !== \"localhost\") {\n this.offlineEventListener = () => {\n this.onClose(\"transport close\");\n };\n addEventListener(\"offline\", this.offlineEventListener, false);\n }\n }\n this.open();\n }\n /**\n * Creates transport of the given type.\n *\n * @param {String} transport name\n * @return {Transport}\n * @api private\n */\n createTransport(name) {\n const query = clone(this.opts.query);\n // append engine.io protocol identifier\n query.EIO = protocol;\n // transport name\n query.transport = name;\n // session id if we already have one\n if (this.id)\n query.sid = this.id;\n const opts = Object.assign({}, this.opts.transportOptions[name], this.opts, {\n query,\n socket: this,\n hostname: this.hostname,\n secure: this.secure,\n port: this.port\n });\n return new transports[name](opts);\n }\n /**\n * Initializes transport to use and starts probe.\n *\n * @api private\n */\n open() {\n let transport;\n if (this.opts.rememberUpgrade &&\n Socket.priorWebsocketSuccess &&\n this.transports.indexOf(\"websocket\") !== -1) {\n transport = \"websocket\";\n }\n else if (0 === this.transports.length) {\n // Emit error on next tick so it can be listened to\n this.setTimeoutFn(() => {\n this.emitReserved(\"error\", \"No transports available\");\n }, 0);\n return;\n }\n else {\n transport = this.transports[0];\n }\n this.readyState = \"opening\";\n // Retry with the next transport if the transport is disabled (jsonp: false)\n try {\n transport = this.createTransport(transport);\n }\n catch (e) {\n this.transports.shift();\n this.open();\n return;\n }\n transport.open();\n this.setTransport(transport);\n }\n /**\n * Sets the current transport. Disables the existing one (if any).\n *\n * @api private\n */\n setTransport(transport) {\n if (this.transport) {\n this.transport.removeAllListeners();\n }\n // set up transport\n this.transport = transport;\n // set up transport listeners\n transport\n .on(\"drain\", this.onDrain.bind(this))\n .on(\"packet\", this.onPacket.bind(this))\n .on(\"error\", this.onError.bind(this))\n .on(\"close\", () => {\n this.onClose(\"transport close\");\n });\n }\n /**\n * Probes a transport.\n *\n * @param {String} transport name\n * @api private\n */\n probe(name) {\n let transport = this.createTransport(name);\n let failed = false;\n Socket.priorWebsocketSuccess = false;\n const onTransportOpen = () => {\n if (failed)\n return;\n transport.send([{ type: \"ping\", data: \"probe\" }]);\n transport.once(\"packet\", msg => {\n if (failed)\n return;\n if (\"pong\" === msg.type && \"probe\" === msg.data) {\n this.upgrading = true;\n this.emitReserved(\"upgrading\", transport);\n if (!transport)\n return;\n Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n this.transport.pause(() => {\n if (failed)\n return;\n if (\"closed\" === this.readyState)\n return;\n cleanup();\n this.setTransport(transport);\n transport.send([{ type: \"upgrade\" }]);\n this.emitReserved(\"upgrade\", transport);\n transport = null;\n this.upgrading = false;\n this.flush();\n });\n }\n else {\n const err = new Error(\"probe error\");\n // @ts-ignore\n err.transport = transport.name;\n this.emitReserved(\"upgradeError\", err);\n }\n });\n };\n function freezeTransport() {\n if (failed)\n return;\n // Any callback called by transport should be ignored since now\n failed = true;\n cleanup();\n transport.close();\n transport = null;\n }\n // Handle any error that happens while probing\n const onerror = err => {\n const error = new Error(\"probe error: \" + err);\n // @ts-ignore\n error.transport = transport.name;\n freezeTransport();\n this.emitReserved(\"upgradeError\", error);\n };\n function onTransportClose() {\n onerror(\"transport closed\");\n }\n // When the socket is closed while we're probing\n function onclose() {\n onerror(\"socket closed\");\n }\n // When the socket is upgraded while we're probing\n function onupgrade(to) {\n if (transport && to.name !== transport.name) {\n freezeTransport();\n }\n }\n // Remove all listeners on the transport and on self\n const cleanup = () => {\n transport.removeListener(\"open\", onTransportOpen);\n transport.removeListener(\"error\", onerror);\n transport.removeListener(\"close\", onTransportClose);\n this.off(\"close\", onclose);\n this.off(\"upgrading\", onupgrade);\n };\n transport.once(\"open\", onTransportOpen);\n transport.once(\"error\", onerror);\n transport.once(\"close\", onTransportClose);\n this.once(\"close\", onclose);\n this.once(\"upgrading\", onupgrade);\n transport.open();\n }\n /**\n * Called when connection is deemed open.\n *\n * @api private\n */\n onOpen() {\n this.readyState = \"open\";\n Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n this.emitReserved(\"open\");\n this.flush();\n // we check for `readyState` in case an `open`\n // listener already closed the socket\n if (\"open\" === this.readyState &&\n this.opts.upgrade &&\n this.transport.pause) {\n let i = 0;\n const l = this.upgrades.length;\n for (; i < l; i++) {\n this.probe(this.upgrades[i]);\n }\n }\n }\n /**\n * Handles a packet.\n *\n * @api private\n */\n onPacket(packet) {\n if (\"opening\" === this.readyState ||\n \"open\" === this.readyState ||\n \"closing\" === this.readyState) {\n this.emitReserved(\"packet\", packet);\n // Socket is live - any packet counts\n this.emitReserved(\"heartbeat\");\n switch (packet.type) {\n case \"open\":\n this.onHandshake(JSON.parse(packet.data));\n break;\n case \"ping\":\n this.resetPingTimeout();\n this.sendPacket(\"pong\");\n this.emitReserved(\"ping\");\n this.emitReserved(\"pong\");\n break;\n case \"error\":\n const err = new Error(\"server error\");\n // @ts-ignore\n err.code = packet.data;\n this.onError(err);\n break;\n case \"message\":\n this.emitReserved(\"data\", packet.data);\n this.emitReserved(\"message\", packet.data);\n break;\n }\n }\n else {\n }\n }\n /**\n * Called upon handshake completion.\n *\n * @param {Object} data - handshake obj\n * @api private\n */\n onHandshake(data) {\n this.emitReserved(\"handshake\", data);\n this.id = data.sid;\n this.transport.query.sid = data.sid;\n this.upgrades = this.filterUpgrades(data.upgrades);\n this.pingInterval = data.pingInterval;\n this.pingTimeout = data.pingTimeout;\n this.onOpen();\n // In case open handler closes socket\n if (\"closed\" === this.readyState)\n return;\n this.resetPingTimeout();\n }\n /**\n * Sets and resets ping timeout timer based on server pings.\n *\n * @api private\n */\n resetPingTimeout() {\n this.clearTimeoutFn(this.pingTimeoutTimer);\n this.pingTimeoutTimer = this.setTimeoutFn(() => {\n this.onClose(\"ping timeout\");\n }, this.pingInterval + this.pingTimeout);\n if (this.opts.autoUnref) {\n this.pingTimeoutTimer.unref();\n }\n }\n /**\n * Called on `drain` event\n *\n * @api private\n */\n onDrain() {\n this.writeBuffer.splice(0, this.prevBufferLen);\n // setting prevBufferLen = 0 is very important\n // for example, when upgrading, upgrade packet is sent over,\n // and a nonzero prevBufferLen could cause problems on `drain`\n this.prevBufferLen = 0;\n if (0 === this.writeBuffer.length) {\n this.emitReserved(\"drain\");\n }\n else {\n this.flush();\n }\n }\n /**\n * Flush write buffers.\n *\n * @api private\n */\n flush() {\n if (\"closed\" !== this.readyState &&\n this.transport.writable &&\n !this.upgrading &&\n this.writeBuffer.length) {\n this.transport.send(this.writeBuffer);\n // keep track of current length of writeBuffer\n // splice writeBuffer and callbackBuffer on `drain`\n this.prevBufferLen = this.writeBuffer.length;\n this.emitReserved(\"flush\");\n }\n }\n /**\n * Sends a message.\n *\n * @param {String} message.\n * @param {Function} callback function.\n * @param {Object} options.\n * @return {Socket} for chaining.\n * @api public\n */\n write(msg, options, fn) {\n this.sendPacket(\"message\", msg, options, fn);\n return this;\n }\n send(msg, options, fn) {\n this.sendPacket(\"message\", msg, options, fn);\n return this;\n }\n /**\n * Sends a packet.\n *\n * @param {String} packet type.\n * @param {String} data.\n * @param {Object} options.\n * @param {Function} callback function.\n * @api private\n */\n sendPacket(type, data, options, fn) {\n if (\"function\" === typeof data) {\n fn = data;\n data = undefined;\n }\n if (\"function\" === typeof options) {\n fn = options;\n options = null;\n }\n if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n return;\n }\n options = options || {};\n options.compress = false !== options.compress;\n const packet = {\n type: type,\n data: data,\n options: options\n };\n this.emitReserved(\"packetCreate\", packet);\n this.writeBuffer.push(packet);\n if (fn)\n this.once(\"flush\", fn);\n this.flush();\n }\n /**\n * Closes the connection.\n *\n * @api public\n */\n close() {\n const close = () => {\n this.onClose(\"forced close\");\n this.transport.close();\n };\n const cleanupAndClose = () => {\n this.off(\"upgrade\", cleanupAndClose);\n this.off(\"upgradeError\", cleanupAndClose);\n close();\n };\n const waitForUpgrade = () => {\n // wait for upgrade to finish since we can't send packets while pausing a transport\n this.once(\"upgrade\", cleanupAndClose);\n this.once(\"upgradeError\", cleanupAndClose);\n };\n if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n this.readyState = \"closing\";\n if (this.writeBuffer.length) {\n this.once(\"drain\", () => {\n if (this.upgrading) {\n waitForUpgrade();\n }\n else {\n close();\n }\n });\n }\n else if (this.upgrading) {\n waitForUpgrade();\n }\n else {\n close();\n }\n }\n return this;\n }\n /**\n * Called upon transport error\n *\n * @api private\n */\n onError(err) {\n Socket.priorWebsocketSuccess = false;\n this.emitReserved(\"error\", err);\n this.onClose(\"transport error\", err);\n }\n /**\n * Called upon transport close.\n *\n * @api private\n */\n onClose(reason, desc) {\n if (\"opening\" === this.readyState ||\n \"open\" === this.readyState ||\n \"closing\" === this.readyState) {\n // clear timers\n this.clearTimeoutFn(this.pingTimeoutTimer);\n // stop event from firing again for transport\n this.transport.removeAllListeners(\"close\");\n // ensure transport won't stay open\n this.transport.close();\n // ignore further transport communication\n this.transport.removeAllListeners();\n if (typeof removeEventListener === \"function\") {\n removeEventListener(\"offline\", this.offlineEventListener, false);\n }\n // set ready state\n this.readyState = \"closed\";\n // clear session id\n this.id = null;\n // emit close event\n this.emitReserved(\"close\", reason, desc);\n // clean buffers after, so users can still\n // grab the buffers on `close` event\n this.writeBuffer = [];\n this.prevBufferLen = 0;\n }\n }\n /**\n * Filters upgrades, returning only those matching client transports.\n *\n * @param {Array} server upgrades\n * @api private\n *\n */\n filterUpgrades(upgrades) {\n const filteredUpgrades = [];\n let i = 0;\n const j = upgrades.length;\n for (; i < j; i++) {\n if (~this.transports.indexOf(upgrades[i]))\n filteredUpgrades.push(upgrades[i]);\n }\n return filteredUpgrades;\n }\n}\nSocket.protocol = protocol;\nfunction clone(obj) {\n const o = {};\n for (let i in obj) {\n if (obj.hasOwnProperty(i)) {\n o[i] = obj[i];\n }\n }\n return o;\n}\n","import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\n","const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n return typeof ArrayBuffer.isView === \"function\"\n ? ArrayBuffer.isView(obj)\n : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n (typeof Blob !== \"undefined\" &&\n toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n (typeof File !== \"undefined\" &&\n toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n (withNativeBlob && obj instanceof Blob) ||\n (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n if (!obj || typeof obj !== \"object\") {\n return false;\n }\n if (Array.isArray(obj)) {\n for (let i = 0, l = obj.length; i < l; i++) {\n if (hasBinary(obj[i])) {\n return true;\n }\n }\n return false;\n }\n if (isBinary(obj)) {\n return true;\n }\n if (obj.toJSON &&\n typeof obj.toJSON === \"function\" &&\n arguments.length === 1) {\n return hasBinary(obj.toJSON(), true);\n }\n for (const key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n return true;\n }\n }\n return false;\n}\n","import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n const buffers = [];\n const packetData = packet.data;\n const pack = packet;\n pack.data = _deconstructPacket(packetData, buffers);\n pack.attachments = buffers.length; // number of binary 'attachments'\n return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n if (!data)\n return data;\n if (isBinary(data)) {\n const placeholder = { _placeholder: true, num: buffers.length };\n buffers.push(data);\n return placeholder;\n }\n else if (Array.isArray(data)) {\n const newData = new Array(data.length);\n for (let i = 0; i < data.length; i++) {\n newData[i] = _deconstructPacket(data[i], buffers);\n }\n return newData;\n }\n else if (typeof data === \"object\" && !(data instanceof Date)) {\n const newData = {};\n for (const key in data) {\n if (data.hasOwnProperty(key)) {\n newData[key] = _deconstructPacket(data[key], buffers);\n }\n }\n return newData;\n }\n return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n packet.data = _reconstructPacket(packet.data, buffers);\n packet.attachments = undefined; // no longer useful\n return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n if (!data)\n return data;\n if (data && data._placeholder) {\n return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n }\n else if (Array.isArray(data)) {\n for (let i = 0; i < data.length; i++) {\n data[i] = _reconstructPacket(data[i], buffers);\n }\n }\n else if (typeof data === \"object\") {\n for (const key in data) {\n if (data.hasOwnProperty(key)) {\n data[key] = _reconstructPacket(data[key], buffers);\n }\n }\n }\n return data;\n}\n","import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n /**\n * Encode a packet as a single string if non-binary, or as a\n * buffer sequence, depending on packet type.\n *\n * @param {Object} obj - packet object\n */\n encode(obj) {\n if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n if (hasBinary(obj)) {\n obj.type =\n obj.type === PacketType.EVENT\n ? PacketType.BINARY_EVENT\n : PacketType.BINARY_ACK;\n return this.encodeAsBinary(obj);\n }\n }\n return [this.encodeAsString(obj)];\n }\n /**\n * Encode packet as string.\n */\n encodeAsString(obj) {\n // first is type\n let str = \"\" + obj.type;\n // attachments if we have them\n if (obj.type === PacketType.BINARY_EVENT ||\n obj.type === PacketType.BINARY_ACK) {\n str += obj.attachments + \"-\";\n }\n // if we have a namespace other than `/`\n // we append it followed by a comma `,`\n if (obj.nsp && \"/\" !== obj.nsp) {\n str += obj.nsp + \",\";\n }\n // immediately followed by the id\n if (null != obj.id) {\n str += obj.id;\n }\n // json data\n if (null != obj.data) {\n str += JSON.stringify(obj.data);\n }\n return str;\n }\n /**\n * Encode packet as 'buffer sequence' by removing blobs, and\n * deconstructing packet into object with placeholders and\n * a list of buffers.\n */\n encodeAsBinary(obj) {\n const deconstruction = deconstructPacket(obj);\n const pack = this.encodeAsString(deconstruction.packet);\n const buffers = deconstruction.buffers;\n buffers.unshift(pack); // add packet info to beginning of data list\n return buffers; // write all the buffers\n }\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n constructor() {\n super();\n }\n /**\n * Decodes an encoded packet string into packet JSON.\n *\n * @param {String} obj - encoded packet\n */\n add(obj) {\n let packet;\n if (typeof obj === \"string\") {\n packet = this.decodeString(obj);\n if (packet.type === PacketType.BINARY_EVENT ||\n packet.type === PacketType.BINARY_ACK) {\n // binary packet's json\n this.reconstructor = new BinaryReconstructor(packet);\n // no attachments, labeled binary but no binary data to follow\n if (packet.attachments === 0) {\n super.emitReserved(\"decoded\", packet);\n }\n }\n else {\n // non-binary full packet\n super.emitReserved(\"decoded\", packet);\n }\n }\n else if (isBinary(obj) || obj.base64) {\n // raw binary data\n if (!this.reconstructor) {\n throw new Error(\"got binary data when not reconstructing a packet\");\n }\n else {\n packet = this.reconstructor.takeBinaryData(obj);\n if (packet) {\n // received final buffer\n this.reconstructor = null;\n super.emitReserved(\"decoded\", packet);\n }\n }\n }\n else {\n throw new Error(\"Unknown type: \" + obj);\n }\n }\n /**\n * Decode a packet String (JSON data)\n *\n * @param {String} str\n * @return {Object} packet\n */\n decodeString(str) {\n let i = 0;\n // look up type\n const p = {\n type: Number(str.charAt(0)),\n };\n if (PacketType[p.type] === undefined) {\n throw new Error(\"unknown packet type \" + p.type);\n }\n // look up attachments if type binary\n if (p.type === PacketType.BINARY_EVENT ||\n p.type === PacketType.BINARY_ACK) {\n const start = i + 1;\n while (str.charAt(++i) !== \"-\" && i != str.length) { }\n const buf = str.substring(start, i);\n if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n throw new Error(\"Illegal attachments\");\n }\n p.attachments = Number(buf);\n }\n // look up namespace (if any)\n if (\"/\" === str.charAt(i + 1)) {\n const start = i + 1;\n while (++i) {\n const c = str.charAt(i);\n if (\",\" === c)\n break;\n if (i === str.length)\n break;\n }\n p.nsp = str.substring(start, i);\n }\n else {\n p.nsp = \"/\";\n }\n // look up id\n const next = str.charAt(i + 1);\n if (\"\" !== next && Number(next) == next) {\n const start = i + 1;\n while (++i) {\n const c = str.charAt(i);\n if (null == c || Number(c) != c) {\n --i;\n break;\n }\n if (i === str.length)\n break;\n }\n p.id = Number(str.substring(start, i + 1));\n }\n // look up json data\n if (str.charAt(++i)) {\n const payload = tryParse(str.substr(i));\n if (Decoder.isPayloadValid(p.type, payload)) {\n p.data = payload;\n }\n else {\n throw new Error(\"invalid payload\");\n }\n }\n return p;\n }\n static isPayloadValid(type, payload) {\n switch (type) {\n case PacketType.CONNECT:\n return typeof payload === \"object\";\n case PacketType.DISCONNECT:\n return payload === undefined;\n case PacketType.CONNECT_ERROR:\n return typeof payload === \"string\" || typeof payload === \"object\";\n case PacketType.EVENT:\n case PacketType.BINARY_EVENT:\n return Array.isArray(payload) && payload.length > 0;\n case PacketType.ACK:\n case PacketType.BINARY_ACK:\n return Array.isArray(payload);\n }\n }\n /**\n * Deallocates a parser's resources\n */\n destroy() {\n if (this.reconstructor) {\n this.reconstructor.finishedReconstruction();\n }\n }\n}\nfunction tryParse(str) {\n try {\n return JSON.parse(str);\n }\n catch (e) {\n return false;\n }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n constructor(packet) {\n this.packet = packet;\n this.buffers = [];\n this.reconPack = packet;\n }\n /**\n * Method to be called when binary data received from connection\n * after a BINARY_EVENT packet.\n *\n * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n * @return {null | Object} returns null if more binary data is expected or\n * a reconstructed packet object if all buffers have been received.\n */\n takeBinaryData(binData) {\n this.buffers.push(binData);\n if (this.buffers.length === this.reconPack.attachments) {\n // done with buffer list\n const packet = reconstructPacket(this.reconPack, this.buffers);\n this.finishedReconstruction();\n return packet;\n }\n return null;\n }\n /**\n * Cleans up binary packet reconstruction variables.\n */\n finishedReconstruction() {\n this.reconPack = null;\n this.buffers = [];\n }\n}\n","export function on(obj, ev, fn) {\n obj.on(ev, fn);\n return function subDestroy() {\n obj.off(ev, fn);\n };\n}\n","import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n connect: 1,\n connect_error: 1,\n disconnect: 1,\n disconnecting: 1,\n // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n newListener: 1,\n removeListener: 1,\n});\nexport class Socket extends Emitter {\n /**\n * `Socket` constructor.\n *\n * @public\n */\n constructor(io, nsp, opts) {\n super();\n this.connected = false;\n this.disconnected = true;\n this.receiveBuffer = [];\n this.sendBuffer = [];\n this.ids = 0;\n this.acks = {};\n this.flags = {};\n this.io = io;\n this.nsp = nsp;\n if (opts && opts.auth) {\n this.auth = opts.auth;\n }\n if (this.io._autoConnect)\n this.open();\n }\n /**\n * Subscribe to open, close and packet events\n *\n * @private\n */\n subEvents() {\n if (this.subs)\n return;\n const io = this.io;\n this.subs = [\n on(io, \"open\", this.onopen.bind(this)),\n on(io, \"packet\", this.onpacket.bind(this)),\n on(io, \"error\", this.onerror.bind(this)),\n on(io, \"close\", this.onclose.bind(this)),\n ];\n }\n /**\n * Whether the Socket will try to reconnect when its Manager connects or reconnects\n */\n get active() {\n return !!this.subs;\n }\n /**\n * \"Opens\" the socket.\n *\n * @public\n */\n connect() {\n if (this.connected)\n return this;\n this.subEvents();\n if (!this.io[\"_reconnecting\"])\n this.io.open(); // ensure open\n if (\"open\" === this.io._readyState)\n this.onopen();\n return this;\n }\n /**\n * Alias for connect()\n */\n open() {\n return this.connect();\n }\n /**\n * Sends a `message` event.\n *\n * @return self\n * @public\n */\n send(...args) {\n args.unshift(\"message\");\n this.emit.apply(this, args);\n return this;\n }\n /**\n * Override `emit`.\n * If the event is in `events`, it's emitted normally.\n *\n * @return self\n * @public\n */\n emit(ev, ...args) {\n if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n throw new Error('\"' + ev + '\" is a reserved event name');\n }\n args.unshift(ev);\n const packet = {\n type: PacketType.EVENT,\n data: args,\n };\n packet.options = {};\n packet.options.compress = this.flags.compress !== false;\n // event ack callback\n if (\"function\" === typeof args[args.length - 1]) {\n this.acks[this.ids] = args.pop();\n packet.id = this.ids++;\n }\n const isTransportWritable = this.io.engine &&\n this.io.engine.transport &&\n this.io.engine.transport.writable;\n const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n if (discardPacket) {\n }\n else if (this.connected) {\n this.packet(packet);\n }\n else {\n this.sendBuffer.push(packet);\n }\n this.flags = {};\n return this;\n }\n /**\n * Sends a packet.\n *\n * @param packet\n * @private\n */\n packet(packet) {\n packet.nsp = this.nsp;\n this.io._packet(packet);\n }\n /**\n * Called upon engine `open`.\n *\n * @private\n */\n onopen() {\n if (typeof this.auth == \"function\") {\n this.auth((data) => {\n this.packet({ type: PacketType.CONNECT, data });\n });\n }\n else {\n this.packet({ type: PacketType.CONNECT, data: this.auth });\n }\n }\n /**\n * Called upon engine or manager `error`.\n *\n * @param err\n * @private\n */\n onerror(err) {\n if (!this.connected) {\n this.emitReserved(\"connect_error\", err);\n }\n }\n /**\n * Called upon engine `close`.\n *\n * @param reason\n * @private\n */\n onclose(reason) {\n this.connected = false;\n this.disconnected = true;\n delete this.id;\n this.emitReserved(\"disconnect\", reason);\n }\n /**\n * Called with socket packet.\n *\n * @param packet\n * @private\n */\n onpacket(packet) {\n const sameNamespace = packet.nsp === this.nsp;\n if (!sameNamespace)\n return;\n switch (packet.type) {\n case PacketType.CONNECT:\n if (packet.data && packet.data.sid) {\n const id = packet.data.sid;\n this.onconnect(id);\n }\n else {\n this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n }\n break;\n case PacketType.EVENT:\n this.onevent(packet);\n break;\n case PacketType.BINARY_EVENT:\n this.onevent(packet);\n break;\n case PacketType.ACK:\n this.onack(packet);\n break;\n case PacketType.BINARY_ACK:\n this.onack(packet);\n break;\n case PacketType.DISCONNECT:\n this.ondisconnect();\n break;\n case PacketType.CONNECT_ERROR:\n const err = new Error(packet.data.message);\n // @ts-ignore\n err.data = packet.data.data;\n this.emitReserved(\"connect_error\", err);\n break;\n }\n }\n /**\n * Called upon a server event.\n *\n * @param packet\n * @private\n */\n onevent(packet) {\n const args = packet.data || [];\n if (null != packet.id) {\n args.push(this.ack(packet.id));\n }\n if (this.connected) {\n this.emitEvent(args);\n }\n else {\n this.receiveBuffer.push(Object.freeze(args));\n }\n }\n emitEvent(args) {\n if (this._anyListeners && this._anyListeners.length) {\n const listeners = this._anyListeners.slice();\n for (const listener of listeners) {\n listener.apply(this, args);\n }\n }\n super.emit.apply(this, args);\n }\n /**\n * Produces an ack callback to emit with an event.\n *\n * @private\n */\n ack(id) {\n const self = this;\n let sent = false;\n return function (...args) {\n // prevent double callbacks\n if (sent)\n return;\n sent = true;\n self.packet({\n type: PacketType.ACK,\n id: id,\n data: args,\n });\n };\n }\n /**\n * Called upon a server acknowlegement.\n *\n * @param packet\n * @private\n */\n onack(packet) {\n const ack = this.acks[packet.id];\n if (\"function\" === typeof ack) {\n ack.apply(this, packet.data);\n delete this.acks[packet.id];\n }\n else {\n }\n }\n /**\n * Called upon server connect.\n *\n * @private\n */\n onconnect(id) {\n this.id = id;\n this.connected = true;\n this.disconnected = false;\n this.emitBuffered();\n this.emitReserved(\"connect\");\n }\n /**\n * Emit buffered events (received and emitted).\n *\n * @private\n */\n emitBuffered() {\n this.receiveBuffer.forEach((args) => this.emitEvent(args));\n this.receiveBuffer = [];\n this.sendBuffer.forEach((packet) => this.packet(packet));\n this.sendBuffer = [];\n }\n /**\n * Called upon server disconnect.\n *\n * @private\n */\n ondisconnect() {\n this.destroy();\n this.onclose(\"io server disconnect\");\n }\n /**\n * Called upon forced client/server side disconnections,\n * this method ensures the manager stops tracking us and\n * that reconnections don't get triggered for this.\n *\n * @private\n */\n destroy() {\n if (this.subs) {\n // clean subscriptions to avoid reconnections\n this.subs.forEach((subDestroy) => subDestroy());\n this.subs = undefined;\n }\n this.io[\"_destroy\"](this);\n }\n /**\n * Disconnects the socket manually.\n *\n * @return self\n * @public\n */\n disconnect() {\n if (this.connected) {\n this.packet({ type: PacketType.DISCONNECT });\n }\n // remove socket from pool\n this.destroy();\n if (this.connected) {\n // fire events\n this.onclose(\"io client disconnect\");\n }\n return this;\n }\n /**\n * Alias for disconnect()\n *\n * @return self\n * @public\n */\n close() {\n return this.disconnect();\n }\n /**\n * Sets the compress flag.\n *\n * @param compress - if `true`, compresses the sending data\n * @return self\n * @public\n */\n compress(compress) {\n this.flags.compress = compress;\n return this;\n }\n /**\n * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n * ready to send messages.\n *\n * @returns self\n * @public\n */\n get volatile() {\n this.flags.volatile = true;\n return this;\n }\n /**\n * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n * callback.\n *\n * @param listener\n * @public\n */\n onAny(listener) {\n this._anyListeners = this._anyListeners || [];\n this._anyListeners.push(listener);\n return this;\n }\n /**\n * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n * callback. The listener is added to the beginning of the listeners array.\n *\n * @param listener\n * @public\n */\n prependAny(listener) {\n this._anyListeners = this._anyListeners || [];\n this._anyListeners.unshift(listener);\n return this;\n }\n /**\n * Removes the listener that will be fired when any event is emitted.\n *\n * @param listener\n * @public\n */\n offAny(listener) {\n if (!this._anyListeners) {\n return this;\n }\n if (listener) {\n const listeners = this._anyListeners;\n for (let i = 0; i < listeners.length; i++) {\n if (listener === listeners[i]) {\n listeners.splice(i, 1);\n return this;\n }\n }\n }\n else {\n this._anyListeners = [];\n }\n return this;\n }\n /**\n * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n * e.g. to remove listeners.\n *\n * @public\n */\n listenersAny() {\n return this._anyListeners || [];\n }\n}\n","\n/**\n * Expose `Backoff`.\n */\n\nmodule.exports = Backoff;\n\n/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction Backoff(opts) {\n opts = opts || {};\n this.ms = opts.min || 100;\n this.max = opts.max || 10000;\n this.factor = opts.factor || 2;\n this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n this.attempts = 0;\n}\n\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\n\nBackoff.prototype.duration = function(){\n var ms = this.ms * Math.pow(this.factor, this.attempts++);\n if (this.jitter) {\n var rand = Math.random();\n var deviation = Math.floor(rand * this.jitter * ms);\n ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n }\n return Math.min(ms, this.max) | 0;\n};\n\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\n\nBackoff.prototype.reset = function(){\n this.attempts = 0;\n};\n\n/**\n * Set the minimum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMin = function(min){\n this.ms = min;\n};\n\n/**\n * Set the maximum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMax = function(max){\n this.max = max;\n};\n\n/**\n * Set the jitter\n *\n * @api public\n */\n\nBackoff.prototype.setJitter = function(jitter){\n this.jitter = jitter;\n};\n\n","import { Socket as Engine, installTimerFunctions, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport Backoff from \"backo2\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n constructor(uri, opts) {\n var _a;\n super();\n this.nsps = {};\n this.subs = [];\n if (uri && \"object\" === typeof uri) {\n opts = uri;\n uri = undefined;\n }\n opts = opts || {};\n opts.path = opts.path || \"/socket.io\";\n this.opts = opts;\n installTimerFunctions(this, opts);\n this.reconnection(opts.reconnection !== false);\n this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n this.reconnectionDelay(opts.reconnectionDelay || 1000);\n this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n this.backoff = new Backoff({\n min: this.reconnectionDelay(),\n max: this.reconnectionDelayMax(),\n jitter: this.randomizationFactor(),\n });\n this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n this._readyState = \"closed\";\n this.uri = uri;\n const _parser = opts.parser || parser;\n this.encoder = new _parser.Encoder();\n this.decoder = new _parser.Decoder();\n this._autoConnect = opts.autoConnect !== false;\n if (this._autoConnect)\n this.open();\n }\n reconnection(v) {\n if (!arguments.length)\n return this._reconnection;\n this._reconnection = !!v;\n return this;\n }\n reconnectionAttempts(v) {\n if (v === undefined)\n return this._reconnectionAttempts;\n this._reconnectionAttempts = v;\n return this;\n }\n reconnectionDelay(v) {\n var _a;\n if (v === undefined)\n return this._reconnectionDelay;\n this._reconnectionDelay = v;\n (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n return this;\n }\n randomizationFactor(v) {\n var _a;\n if (v === undefined)\n return this._randomizationFactor;\n this._randomizationFactor = v;\n (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n return this;\n }\n reconnectionDelayMax(v) {\n var _a;\n if (v === undefined)\n return this._reconnectionDelayMax;\n this._reconnectionDelayMax = v;\n (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n return this;\n }\n timeout(v) {\n if (!arguments.length)\n return this._timeout;\n this._timeout = v;\n return this;\n }\n /**\n * Starts trying to reconnect if reconnection is enabled and we have not\n * started reconnecting yet\n *\n * @private\n */\n maybeReconnectOnOpen() {\n // Only try to reconnect if it's the first time we're connecting\n if (!this._reconnecting &&\n this._reconnection &&\n this.backoff.attempts === 0) {\n // keeps reconnection from firing twice for the same reconnection loop\n this.reconnect();\n }\n }\n /**\n * Sets the current transport `socket`.\n *\n * @param {Function} fn - optional, callback\n * @return self\n * @public\n */\n open(fn) {\n if (~this._readyState.indexOf(\"open\"))\n return this;\n this.engine = new Engine(this.uri, this.opts);\n const socket = this.engine;\n const self = this;\n this._readyState = \"opening\";\n this.skipReconnect = false;\n // emit `open`\n const openSubDestroy = on(socket, \"open\", function () {\n self.onopen();\n fn && fn();\n });\n // emit `error`\n const errorSub = on(socket, \"error\", (err) => {\n self.cleanup();\n self._readyState = \"closed\";\n this.emitReserved(\"error\", err);\n if (fn) {\n fn(err);\n }\n else {\n // Only do this if there is no fn to handle the error\n self.maybeReconnectOnOpen();\n }\n });\n if (false !== this._timeout) {\n const timeout = this._timeout;\n if (timeout === 0) {\n openSubDestroy(); // prevents a race condition with the 'open' event\n }\n // set timer\n const timer = this.setTimeoutFn(() => {\n openSubDestroy();\n socket.close();\n // @ts-ignore\n socket.emit(\"error\", new Error(\"timeout\"));\n }, timeout);\n if (this.opts.autoUnref) {\n timer.unref();\n }\n this.subs.push(function subDestroy() {\n clearTimeout(timer);\n });\n }\n this.subs.push(openSubDestroy);\n this.subs.push(errorSub);\n return this;\n }\n /**\n * Alias for open()\n *\n * @return self\n * @public\n */\n connect(fn) {\n return this.open(fn);\n }\n /**\n * Called upon transport open.\n *\n * @private\n */\n onopen() {\n // clear old subs\n this.cleanup();\n // mark as open\n this._readyState = \"open\";\n this.emitReserved(\"open\");\n // add new subs\n const socket = this.engine;\n this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n }\n /**\n * Called upon a ping.\n *\n * @private\n */\n onping() {\n this.emitReserved(\"ping\");\n }\n /**\n * Called with data.\n *\n * @private\n */\n ondata(data) {\n this.decoder.add(data);\n }\n /**\n * Called when parser fully decodes a packet.\n *\n * @private\n */\n ondecoded(packet) {\n this.emitReserved(\"packet\", packet);\n }\n /**\n * Called upon socket error.\n *\n * @private\n */\n onerror(err) {\n this.emitReserved(\"error\", err);\n }\n /**\n * Creates a new socket for the given `nsp`.\n *\n * @return {Socket}\n * @public\n */\n socket(nsp, opts) {\n let socket = this.nsps[nsp];\n if (!socket) {\n socket = new Socket(this, nsp, opts);\n this.nsps[nsp] = socket;\n }\n return socket;\n }\n /**\n * Called upon a socket close.\n *\n * @param socket\n * @private\n */\n _destroy(socket) {\n const nsps = Object.keys(this.nsps);\n for (const nsp of nsps) {\n const socket = this.nsps[nsp];\n if (socket.active) {\n return;\n }\n }\n this._close();\n }\n /**\n * Writes a packet.\n *\n * @param packet\n * @private\n */\n _packet(packet) {\n const encodedPackets = this.encoder.encode(packet);\n for (let i = 0; i < encodedPackets.length; i++) {\n this.engine.write(encodedPackets[i], packet.options);\n }\n }\n /**\n * Clean up transport subscriptions and packet buffer.\n *\n * @private\n */\n cleanup() {\n this.subs.forEach((subDestroy) => subDestroy());\n this.subs.length = 0;\n this.decoder.destroy();\n }\n /**\n * Close the current socket.\n *\n * @private\n */\n _close() {\n this.skipReconnect = true;\n this._reconnecting = false;\n if (\"opening\" === this._readyState) {\n // `onclose` will not fire because\n // an open event never happened\n this.cleanup();\n }\n this.backoff.reset();\n this._readyState = \"closed\";\n if (this.engine)\n this.engine.close();\n }\n /**\n * Alias for close()\n *\n * @private\n */\n disconnect() {\n return this._close();\n }\n /**\n * Called upon engine close.\n *\n * @private\n */\n onclose(reason) {\n this.cleanup();\n this.backoff.reset();\n this._readyState = \"closed\";\n this.emitReserved(\"close\", reason);\n if (this._reconnection && !this.skipReconnect) {\n this.reconnect();\n }\n }\n /**\n * Attempt a reconnection.\n *\n * @private\n */\n reconnect() {\n if (this._reconnecting || this.skipReconnect)\n return this;\n const self = this;\n if (this.backoff.attempts >= this._reconnectionAttempts) {\n this.backoff.reset();\n this.emitReserved(\"reconnect_failed\");\n this._reconnecting = false;\n }\n else {\n const delay = this.backoff.duration();\n this._reconnecting = true;\n const timer = this.setTimeoutFn(() => {\n if (self.skipReconnect)\n return;\n this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n // check again for the case socket closed in above events\n if (self.skipReconnect)\n return;\n self.open((err) => {\n if (err) {\n self._reconnecting = false;\n self.reconnect();\n this.emitReserved(\"reconnect_error\", err);\n }\n else {\n self.onreconnect();\n }\n });\n }, delay);\n if (this.opts.autoUnref) {\n timer.unref();\n }\n this.subs.push(function subDestroy() {\n clearTimeout(timer);\n });\n }\n }\n /**\n * Called upon successful reconnect.\n *\n * @private\n */\n onreconnect() {\n const attempt = this.backoff.attempts;\n this._reconnecting = false;\n this.backoff.reset();\n this.emitReserved(\"reconnect\", attempt);\n }\n}\n","import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n if (typeof uri === \"object\") {\n opts = uri;\n uri = undefined;\n }\n opts = opts || {};\n const parsed = url(uri, opts.path || \"/socket.io\");\n const source = parsed.source;\n const id = parsed.id;\n const path = parsed.path;\n const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n const newConnection = opts.forceNew ||\n opts[\"force new connection\"] ||\n false === opts.multiplex ||\n sameNamespace;\n let io;\n if (newConnection) {\n io = new Manager(source, opts);\n }\n else {\n if (!cache[id]) {\n cache[id] = new Manager(source, opts);\n }\n io = cache[id];\n }\n if (parsed.query && !opts.query) {\n opts.query = parsed.queryKey;\n }\n return io.socket(parsed.path, opts);\n}\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, };\n","import parseuri from \"parseuri\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n * Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n let obj = uri;\n // default to window.location\n loc = loc || (typeof location !== \"undefined\" && location);\n if (null == uri)\n uri = loc.protocol + \"//\" + loc.host;\n // relative path support\n if (typeof uri === \"string\") {\n if (\"/\" === uri.charAt(0)) {\n if (\"/\" === uri.charAt(1)) {\n uri = loc.protocol + uri;\n }\n else {\n uri = loc.host + uri;\n }\n }\n if (!/^(https?|wss?):\\/\\//.test(uri)) {\n if (\"undefined\" !== typeof loc) {\n uri = loc.protocol + \"//\" + uri;\n }\n else {\n uri = \"https://\" + uri;\n }\n }\n // parse\n obj = parseuri(uri);\n }\n // make sure we treat `localhost:80` and `localhost` equally\n if (!obj.port) {\n if (/^(http|ws)$/.test(obj.protocol)) {\n obj.port = \"80\";\n }\n else if (/^(http|ws)s$/.test(obj.protocol)) 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\ No newline at end of file
diff --git a/dist/socket.io.js b/dist/socket.io.js
index 1faa1a13..ad8bc830 100644
--- a/dist/socket.io.js
+++ b/dist/socket.io.js
@@ -1,6115 +1,4172 @@
/*!
- * Socket.IO v4.2.0
+ * Socket.IO v4.3.0
* (c) 2014-2021 Guillermo Rauch
* Released under the MIT License.
*/
-(function webpackUniversalModuleDefinition(root, factory) {
- if(typeof exports === 'object' && typeof module === 'object')
- module.exports = factory();
- else if(typeof define === 'function' && define.amd)
- define([], factory);
- else if(typeof exports === 'object')
- exports["io"] = factory();
- else
- root["io"] = factory();
-})(self, function() {
-return /******/ (function(modules) { // webpackBootstrap
-/******/ // The module cache
-/******/ var installedModules = {};
-/******/
-/******/ // The require function
-/******/ function __webpack_require__(moduleId) {
-/******/
-/******/ // Check if module is in cache
-/******/ if(installedModules[moduleId]) {
-/******/ return installedModules[moduleId].exports;
-/******/ }
-/******/ // Create a new module (and put it into the cache)
-/******/ var module = installedModules[moduleId] = {
-/******/ i: moduleId,
-/******/ l: false,
-/******/ exports: {}
-/******/ };
-/******/
-/******/ // Execute the module function
-/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
-/******/
-/******/ // Flag the module as loaded
-/******/ module.l = true;
-/******/
-/******/ // Return the exports of the module
-/******/ return module.exports;
-/******/ }
-/******/
-/******/
-/******/ // expose the modules object (__webpack_modules__)
-/******/ __webpack_require__.m = modules;
-/******/
-/******/ // expose the module cache
-/******/ __webpack_require__.c = installedModules;
-/******/
-/******/ // define getter function for harmony exports
-/******/ __webpack_require__.d = function(exports, name, getter) {
-/******/ if(!__webpack_require__.o(exports, name)) {
-/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
-/******/ }
-/******/ };
-/******/
-/******/ // define __esModule on exports
-/******/ __webpack_require__.r = function(exports) {
-/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
-/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
-/******/ }
-/******/ Object.defineProperty(exports, '__esModule', { value: true });
-/******/ };
-/******/
-/******/ // create a fake namespace object
-/******/ // mode & 1: value is a module id, require it
-/******/ // mode & 2: merge all properties of value into the ns
-/******/ // mode & 4: return value when already ns object
-/******/ // mode & 8|1: behave like require
-/******/ __webpack_require__.t = function(value, mode) {
-/******/ if(mode & 1) value = __webpack_require__(value);
-/******/ if(mode & 8) return value;
-/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
-/******/ var ns = Object.create(null);
-/******/ __webpack_require__.r(ns);
-/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
-/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
-/******/ return ns;
-/******/ };
-/******/
-/******/ // getDefaultExport function for compatibility with non-harmony modules
-/******/ __webpack_require__.n = function(module) {
-/******/ var getter = module && module.__esModule ?
-/******/ function getDefault() { return module['default']; } :
-/******/ function getModuleExports() { return module; };
-/******/ __webpack_require__.d(getter, 'a', getter);
-/******/ return getter;
-/******/ };
-/******/
-/******/ // Object.prototype.hasOwnProperty.call
-/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
-/******/
-/******/ // __webpack_public_path__
-/******/ __webpack_require__.p = "";
-/******/
-/******/
-/******/ // Load entry module and return exports
-/******/ return __webpack_require__(__webpack_require__.s = "./build/index.js");
-/******/ })
-/************************************************************************/
-/******/ ({
-
-/***/ "./build/index.js":
-/*!************************!*\
- !*** ./build/index.js ***!
- \************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.io = exports.Socket = exports.Manager = exports.protocol = void 0;
-
-var url_1 = __webpack_require__(/*! ./url */ "./build/url.js");
-
-var manager_1 = __webpack_require__(/*! ./manager */ "./build/manager.js");
-
-var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client");
-/**
- * Module exports.
- */
-
-
-module.exports = exports = lookup;
-/**
- * Managers cache.
- */
-
-var cache = exports.managers = {};
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.io = factory());
+})(this, (function () { 'use strict';
+
+ function _typeof(obj) {
+ "@babel/helpers - typeof";
+
+ if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
+ _typeof = function (obj) {
+ return typeof obj;
+ };
+ } else {
+ _typeof = function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+ };
+ }
-function lookup(uri, opts) {
- if (_typeof(uri) === "object") {
- opts = uri;
- uri = undefined;
+ return _typeof(obj);
}
- opts = opts || {};
- var parsed = (0, url_1.url)(uri, opts.path || "/socket.io");
- var source = parsed.source;
- var id = parsed.id;
- var path = parsed.path;
- var sameNamespace = cache[id] && path in cache[id]["nsps"];
- var newConnection = opts.forceNew || opts["force new connection"] || false === opts.multiplex || sameNamespace;
- var io;
-
- if (newConnection) {
- debug("ignoring socket cache for %s", source);
- io = new manager_1.Manager(source, opts);
- } else {
- if (!cache[id]) {
- debug("new io instance for %s", source);
- cache[id] = new manager_1.Manager(source, opts);
+ function _classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
}
+ }
- io = cache[id];
+ function _defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
}
- if (parsed.query && !opts.query) {
- opts.query = parsed.queryKey;
+ function _createClass(Constructor, protoProps, staticProps) {
+ if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) _defineProperties(Constructor, staticProps);
+ return Constructor;
}
- return io.socket(parsed.path, opts);
-}
+ function _extends() {
+ _extends = Object.assign || function (target) {
+ for (var i = 1; i < arguments.length; i++) {
+ var source = arguments[i];
-exports.io = lookup;
-/**
- * Protocol version.
- *
- * @public
- */
+ for (var key in source) {
+ if (Object.prototype.hasOwnProperty.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
-var socket_io_parser_1 = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-parser/dist/index.js");
+ return target;
+ };
-Object.defineProperty(exports, "protocol", {
- enumerable: true,
- get: function get() {
- return socket_io_parser_1.protocol;
+ return _extends.apply(this, arguments);
}
-});
-/**
- * `connect`.
- *
- * @param {String} uri
- * @public
- */
-exports.connect = lookup;
-/**
- * Expose constructors for standalone build.
- *
- * @public
- */
+ function _inherits(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function");
+ }
-var manager_2 = __webpack_require__(/*! ./manager */ "./build/manager.js");
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) _setPrototypeOf(subClass, superClass);
+ }
-Object.defineProperty(exports, "Manager", {
- enumerable: true,
- get: function get() {
- return manager_2.Manager;
+ function _getPrototypeOf(o) {
+ _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
+ return o.__proto__ || Object.getPrototypeOf(o);
+ };
+ return _getPrototypeOf(o);
}
-});
-var socket_1 = __webpack_require__(/*! ./socket */ "./build/socket.js");
+ function _setPrototypeOf(o, p) {
+ _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
+ o.__proto__ = p;
+ return o;
+ };
-Object.defineProperty(exports, "Socket", {
- enumerable: true,
- get: function get() {
- return socket_1.Socket;
+ return _setPrototypeOf(o, p);
}
-});
-exports["default"] = lookup;
-/***/ }),
+ function _isNativeReflectConstruct() {
+ if (typeof Reflect === "undefined" || !Reflect.construct) return false;
+ if (Reflect.construct.sham) return false;
+ if (typeof Proxy === "function") return true;
-/***/ "./build/manager.js":
-/*!**************************!*\
- !*** ./build/manager.js ***!
- \**************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
+ try {
+ Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+ return true;
+ } catch (e) {
+ return false;
+ }
+ }
+ function _assertThisInitialized(self) {
+ if (self === void 0) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+ return self;
+ }
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+ function _possibleConstructorReturn(self, call) {
+ if (call && (typeof call === "object" || typeof call === "function")) {
+ return call;
+ } else if (call !== void 0) {
+ throw new TypeError("Derived constructors may only return object or undefined");
+ }
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+ return _assertThisInitialized(self);
+ }
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+ function _createSuper(Derived) {
+ var hasNativeReflectConstruct = _isNativeReflectConstruct();
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
+ return function _createSuperInternal() {
+ var Super = _getPrototypeOf(Derived),
+ result;
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+ if (hasNativeReflectConstruct) {
+ var NewTarget = _getPrototypeOf(this).constructor;
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
+ result = Reflect.construct(Super, arguments, NewTarget);
+ } else {
+ result = Super.apply(this, arguments);
+ }
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+ return _possibleConstructorReturn(this, result);
+ };
+ }
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+ function _superPropBase(object, property) {
+ while (!Object.prototype.hasOwnProperty.call(object, property)) {
+ object = _getPrototypeOf(object);
+ if (object === null) break;
+ }
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
+ return object;
+ }
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+ function _get(target, property, receiver) {
+ if (typeof Reflect !== "undefined" && Reflect.get) {
+ _get = Reflect.get;
+ } else {
+ _get = function _get(target, property, receiver) {
+ var base = _superPropBase(target, property);
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.Manager = void 0;
+ if (!base) return;
+ var desc = Object.getOwnPropertyDescriptor(base, property);
-var eio = __webpack_require__(/*! engine.io-client */ "./node_modules/engine.io-client/lib/index.js");
+ if (desc.get) {
+ return desc.get.call(receiver);
+ }
-var util_1 = __webpack_require__(/*! engine.io-client/lib/util */ "./node_modules/engine.io-client/lib/util.js");
+ return desc.value;
+ };
+ }
-var socket_1 = __webpack_require__(/*! ./socket */ "./build/socket.js");
+ return _get(target, property, receiver || target);
+ }
-var parser = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-parser/dist/index.js");
+ function _unsupportedIterableToArray(o, minLen) {
+ if (!o) return;
+ if (typeof o === "string") return _arrayLikeToArray(o, minLen);
+ var n = Object.prototype.toString.call(o).slice(8, -1);
+ if (n === "Object" && o.constructor) n = o.constructor.name;
+ if (n === "Map" || n === "Set") return Array.from(o);
+ if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
+ }
-var on_1 = __webpack_require__(/*! ./on */ "./build/on.js");
+ function _arrayLikeToArray(arr, len) {
+ if (len == null || len > arr.length) len = arr.length;
-var Backoff = __webpack_require__(/*! backo2 */ "./node_modules/backo2/index.js");
+ for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
-var typed_events_1 = __webpack_require__(/*! ./typed-events */ "./build/typed-events.js");
+ return arr2;
+ }
-var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client:manager");
+ function _createForOfIteratorHelper(o, allowArrayLike) {
+ var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
-var Manager = /*#__PURE__*/function (_typed_events_1$Stric) {
- _inherits(Manager, _typed_events_1$Stric);
+ if (!it) {
+ if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
+ if (it) o = it;
+ var i = 0;
- var _super = _createSuper(Manager);
+ var F = function () {};
+
+ return {
+ s: F,
+ n: function () {
+ if (i >= o.length) return {
+ done: true
+ };
+ return {
+ done: false,
+ value: o[i++]
+ };
+ },
+ e: function (e) {
+ throw e;
+ },
+ f: F
+ };
+ }
- function Manager(uri, opts) {
- var _this;
+ throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+ }
- _classCallCheck(this, Manager);
+ var normalCompletion = true,
+ didErr = false,
+ err;
+ return {
+ s: function () {
+ it = it.call(o);
+ },
+ n: function () {
+ var step = it.next();
+ normalCompletion = step.done;
+ return step;
+ },
+ e: function (e) {
+ didErr = true;
+ err = e;
+ },
+ f: function () {
+ try {
+ if (!normalCompletion && it.return != null) it.return();
+ } finally {
+ if (didErr) throw err;
+ }
+ }
+ };
+ }
- var _a;
+ /**
+ * Parses an URI
+ *
+ * @author Steven Levithan (MIT license)
+ * @api private
+ */
+ var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+ var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'];
- _this = _super.call(this);
- _this.nsps = {};
- _this.subs = [];
+ var parseuri = function parseuri(str) {
+ var src = str,
+ b = str.indexOf('['),
+ e = str.indexOf(']');
- if (uri && "object" === _typeof(uri)) {
- opts = uri;
- uri = undefined;
+ if (b != -1 && e != -1) {
+ str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
}
- opts = opts || {};
- opts.path = opts.path || "/socket.io";
- _this.opts = opts;
- (0, util_1.installTimerFunctions)(_assertThisInitialized(_this), opts);
-
- _this.reconnection(opts.reconnection !== false);
-
- _this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
-
- _this.reconnectionDelay(opts.reconnectionDelay || 1000);
+ var m = re.exec(str || ''),
+ uri = {},
+ i = 14;
- _this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+ while (i--) {
+ uri[parts[i]] = m[i] || '';
+ }
- _this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);
+ if (b != -1 && e != -1) {
+ uri.source = src;
+ uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+ uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+ uri.ipv6uri = true;
+ }
- _this.backoff = new Backoff({
- min: _this.reconnectionDelay(),
- max: _this.reconnectionDelayMax(),
- jitter: _this.randomizationFactor()
- });
+ uri.pathNames = pathNames(uri, uri['path']);
+ uri.queryKey = queryKey(uri, uri['query']);
+ return uri;
+ };
- _this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+ function pathNames(obj, path) {
+ var regx = /\/{2,9}/g,
+ names = path.replace(regx, "/").split("/");
- _this._readyState = "closed";
- _this.uri = uri;
+ if (path.substr(0, 1) == '/' || path.length === 0) {
+ names.splice(0, 1);
+ }
- var _parser = opts.parser || parser;
+ if (path.substr(path.length - 1, 1) == '/') {
+ names.splice(names.length - 1, 1);
+ }
- _this.encoder = new _parser.Encoder();
- _this.decoder = new _parser.Decoder();
- _this._autoConnect = opts.autoConnect !== false;
- if (_this._autoConnect) _this.open();
- return _this;
+ return names;
}
- _createClass(Manager, [{
- key: "reconnection",
- value: function reconnection(v) {
- if (!arguments.length) return this._reconnection;
- this._reconnection = !!v;
- return this;
- }
- }, {
- key: "reconnectionAttempts",
- value: function reconnectionAttempts(v) {
- if (v === undefined) return this._reconnectionAttempts;
- this._reconnectionAttempts = v;
- return this;
- }
- }, {
- key: "reconnectionDelay",
- value: function reconnectionDelay(v) {
- var _a;
+ function queryKey(uri, query) {
+ var data = {};
+ query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {
+ if ($1) {
+ data[$1] = $2;
+ }
+ });
+ return data;
+ }
- if (v === undefined) return this._reconnectionDelay;
- this._reconnectionDelay = v;
- (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);
- return this;
- }
- }, {
- key: "randomizationFactor",
- value: function randomizationFactor(v) {
- var _a;
+ /**
+ * URL parser.
+ *
+ * @param uri - url
+ * @param path - the request path of the connection
+ * @param loc - An object meant to mimic window.location.
+ * Defaults to window.location.
+ * @public
+ */
- if (v === undefined) return this._randomizationFactor;
- this._randomizationFactor = v;
- (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);
- return this;
- }
- }, {
- key: "reconnectionDelayMax",
- value: function reconnectionDelayMax(v) {
- var _a;
+ function url(uri) {
+ var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "";
+ var loc = arguments.length > 2 ? arguments[2] : undefined;
+ var obj = uri; // default to window.location
- if (v === undefined) return this._reconnectionDelayMax;
- this._reconnectionDelayMax = v;
- (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);
- return this;
- }
- }, {
- key: "timeout",
- value: function timeout(v) {
- if (!arguments.length) return this._timeout;
- this._timeout = v;
- return this;
- }
- /**
- * Starts trying to reconnect if reconnection is enabled and we have not
- * started reconnecting yet
- *
- * @private
- */
+ loc = loc || typeof location !== "undefined" && location;
+ if (null == uri) uri = loc.protocol + "//" + loc.host; // relative path support
- }, {
- key: "maybeReconnectOnOpen",
- value: function maybeReconnectOnOpen() {
- // Only try to reconnect if it's the first time we're connecting
- if (!this._reconnecting && this._reconnection && this.backoff.attempts === 0) {
- // keeps reconnection from firing twice for the same reconnection loop
- this.reconnect();
+ if (typeof uri === "string") {
+ if ("/" === uri.charAt(0)) {
+ if ("/" === uri.charAt(1)) {
+ uri = loc.protocol + uri;
+ } else {
+ uri = loc.host + uri;
+ }
}
- }
- /**
- * Sets the current transport `socket`.
- *
- * @param {Function} fn - optional, callback
- * @return self
- * @public
- */
- }, {
- key: "open",
- value: function open(fn) {
- var _this2 = this;
-
- debug("readyState %s", this._readyState);
- if (~this._readyState.indexOf("open")) return this;
- debug("opening %s", this.uri);
- this.engine = eio(this.uri, this.opts);
- var socket = this.engine;
- var self = this;
- this._readyState = "opening";
- this.skipReconnect = false; // emit `open`
-
- var openSubDestroy = (0, on_1.on)(socket, "open", function () {
- self.onopen();
- fn && fn();
- }); // emit `error`
-
- var errorSub = (0, on_1.on)(socket, "error", function (err) {
- debug("error");
- self.cleanup();
- self._readyState = "closed";
-
- _this2.emitReserved("error", err);
-
- if (fn) {
- fn(err);
+ if (!/^(https?|wss?):\/\//.test(uri)) {
+ if ("undefined" !== typeof loc) {
+ uri = loc.protocol + "//" + uri;
} else {
- // Only do this if there is no fn to handle the error
- self.maybeReconnectOnOpen();
+ uri = "https://" + uri;
}
- });
+ } // parse
- if (false !== this._timeout) {
- var timeout = this._timeout;
- debug("connect attempt will timeout after %d", timeout);
- if (timeout === 0) {
- openSubDestroy(); // prevents a race condition with the 'open' event
- } // set timer
+ obj = parseuri(uri);
+ } // make sure we treat `localhost:80` and `localhost` equally
- var timer = this.setTimeoutFn(function () {
- debug("connect attempt timed out after %d", timeout);
- openSubDestroy();
- socket.close();
- socket.emit("error", new Error("timeout"));
- }, timeout);
+ if (!obj.port) {
+ if (/^(http|ws)$/.test(obj.protocol)) {
+ obj.port = "80";
+ } else if (/^(http|ws)s$/.test(obj.protocol)) {
+ obj.port = "443";
+ }
+ }
- if (this.opts.autoUnref) {
- timer.unref();
- }
+ obj.path = obj.path || "/";
+ var ipv6 = obj.host.indexOf(":") !== -1;
+ var host = ipv6 ? "[" + obj.host + "]" : obj.host; // define unique id
- this.subs.push(function subDestroy() {
- clearTimeout(timer);
- });
- }
+ obj.id = obj.protocol + "://" + host + ":" + obj.port + path; // define href
- this.subs.push(openSubDestroy);
- this.subs.push(errorSub);
- return this;
- }
- /**
- * Alias for open()
- *
- * @return self
- * @public
- */
+ obj.href = obj.protocol + "://" + host + (loc && loc.port === obj.port ? "" : ":" + obj.port);
+ return obj;
+ }
- }, {
- key: "connect",
- value: function connect(fn) {
- return this.open(fn);
- }
- /**
- * Called upon transport open.
- *
- * @private
- */
+ var hasCors = {exports: {}};
- }, {
- key: "onopen",
- value: function onopen() {
- debug("open"); // clear old subs
+ /**
+ * Module exports.
+ *
+ * Logic borrowed from Modernizr:
+ *
+ * - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
+ */
- this.cleanup(); // mark as open
+ try {
+ hasCors.exports = typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest();
+ } catch (err) {
+ // if XMLHttp support is disabled in IE then it will throw
+ // when trying to create
+ hasCors.exports = false;
+ }
- this._readyState = "open";
- this.emitReserved("open"); // add new subs
+ var hasCORS = hasCors.exports;
- var socket = this.engine;
- this.subs.push((0, on_1.on)(socket, "ping", this.onping.bind(this)), (0, on_1.on)(socket, "data", this.ondata.bind(this)), (0, on_1.on)(socket, "error", this.onerror.bind(this)), (0, on_1.on)(socket, "close", this.onclose.bind(this)), (0, on_1.on)(this.decoder, "decoded", this.ondecoded.bind(this)));
+ var globalThis = (function () {
+ if (typeof self !== "undefined") {
+ return self;
+ } else if (typeof window !== "undefined") {
+ return window;
+ } else {
+ return Function("return this")();
}
- /**
- * Called upon a ping.
- *
- * @private
- */
+ })();
- }, {
- key: "onping",
- value: function onping() {
- this.emitReserved("ping");
- }
- /**
- * Called with data.
- *
- * @private
- */
+ // browser shim for xmlhttprequest module
+ function XMLHttpRequest$1 (opts) {
+ var xdomain = opts.xdomain; // XMLHttpRequest can be disabled on IE
- }, {
- key: "ondata",
- value: function ondata(data) {
- this.decoder.add(data);
- }
- /**
- * Called when parser fully decodes a packet.
- *
- * @private
- */
+ try {
+ if ("undefined" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+ return new XMLHttpRequest();
+ }
+ } catch (e) {}
- }, {
- key: "ondecoded",
- value: function ondecoded(packet) {
- this.emitReserved("packet", packet);
+ if (!xdomain) {
+ try {
+ return new globalThis[["Active"].concat("Object").join("X")]("Microsoft.XMLHTTP");
+ } catch (e) {}
}
- /**
- * Called upon socket error.
- *
- * @private
- */
+ }
- }, {
- key: "onerror",
- value: function onerror(err) {
- debug("error", err);
- this.emitReserved("error", err);
+ function pick(obj) {
+ for (var _len = arguments.length, attr = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ attr[_key - 1] = arguments[_key];
}
- /**
- * Creates a new socket for the given `nsp`.
- *
- * @return {Socket}
- * @public
- */
-
- }, {
- key: "socket",
- value: function socket(nsp, opts) {
- var socket = this.nsps[nsp];
- if (!socket) {
- socket = new socket_1.Socket(this, nsp, opts);
- this.nsps[nsp] = socket;
+ return attr.reduce(function (acc, k) {
+ if (obj.hasOwnProperty(k)) {
+ acc[k] = obj[k];
}
- return socket;
- }
- /**
- * Called upon a socket close.
- *
- * @param socket
- * @private
- */
+ return acc;
+ }, {});
+ } // Keep a reference to the real timeout functions so they can be used when overridden
- }, {
- key: "_destroy",
- value: function _destroy(socket) {
- var nsps = Object.keys(this.nsps);
+ var NATIVE_SET_TIMEOUT = setTimeout;
+ var NATIVE_CLEAR_TIMEOUT = clearTimeout;
+ function installTimerFunctions(obj, opts) {
+ if (opts.useNativeTimers) {
+ obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);
+ obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);
+ } else {
+ obj.setTimeoutFn = setTimeout.bind(globalThis);
+ obj.clearTimeoutFn = clearTimeout.bind(globalThis);
+ }
+ }
- for (var _i = 0, _nsps = nsps; _i < _nsps.length; _i++) {
- var nsp = _nsps[_i];
- var _socket = this.nsps[nsp];
+ /**
+ * Expose `Emitter`.
+ */
- if (_socket.active) {
- debug("socket %s is still active, skipping close", nsp);
- return;
- }
- }
+ var Emitter_1 = Emitter;
+ /**
+ * Initialize a new `Emitter`.
+ *
+ * @api public
+ */
- this._close();
- }
- /**
- * Writes a packet.
- *
- * @param packet
- * @private
- */
+ function Emitter(obj) {
+ if (obj) return mixin(obj);
+ }
+ /**
+ * Mixin the emitter properties.
+ *
+ * @param {Object} obj
+ * @return {Object}
+ * @api private
+ */
- }, {
- key: "_packet",
- value: function _packet(packet) {
- debug("writing packet %j", packet);
- var encodedPackets = this.encoder.encode(packet);
- for (var i = 0; i < encodedPackets.length; i++) {
- this.engine.write(encodedPackets[i], packet.options);
- }
+ function mixin(obj) {
+ for (var key in Emitter.prototype) {
+ obj[key] = Emitter.prototype[key];
}
- /**
- * Clean up transport subscriptions and packet buffer.
- *
- * @private
- */
- }, {
- key: "cleanup",
- value: function cleanup() {
- debug("cleanup");
- this.subs.forEach(function (subDestroy) {
- return subDestroy();
- });
- this.subs.length = 0;
- this.decoder.destroy();
- }
- /**
- * Close the current socket.
- *
- * @private
- */
+ return obj;
+ }
+ /**
+ * Listen on the given `event` with `fn`.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
- }, {
- key: "_close",
- value: function _close() {
- debug("disconnect");
- this.skipReconnect = true;
- this._reconnecting = false;
- if ("opening" === this._readyState) {
- // `onclose` will not fire because
- // an open event never happened
- this.cleanup();
- }
+ Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
+ this._callbacks = this._callbacks || {};
+ (this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
+ return this;
+ };
+ /**
+ * Adds an `event` listener that will be invoked a single
+ * time then automatically removed.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
- this.backoff.reset();
- this._readyState = "closed";
- if (this.engine) this.engine.close();
- }
- /**
- * Alias for close()
- *
- * @private
- */
- }, {
- key: "disconnect",
- value: function disconnect() {
- return this._close();
+ Emitter.prototype.once = function (event, fn) {
+ function on() {
+ this.off(event, on);
+ fn.apply(this, arguments);
}
- /**
- * Called upon engine close.
- *
- * @private
- */
- }, {
- key: "onclose",
- value: function onclose(reason) {
- debug("onclose");
- this.cleanup();
- this.backoff.reset();
- this._readyState = "closed";
- this.emitReserved("close", reason);
+ on.fn = fn;
+ this.on(event, on);
+ return this;
+ };
+ /**
+ * Remove the given callback for `event` or all
+ * registered callbacks.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
- if (this._reconnection && !this.skipReconnect) {
- this.reconnect();
- }
- }
- /**
- * Attempt a reconnection.
- *
- * @private
- */
- }, {
- key: "reconnect",
- value: function reconnect() {
- var _this3 = this;
+ Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
+ this._callbacks = this._callbacks || {}; // all
- if (this._reconnecting || this.skipReconnect) return this;
- var self = this;
+ if (0 == arguments.length) {
+ this._callbacks = {};
+ return this;
+ } // specific event
- if (this.backoff.attempts >= this._reconnectionAttempts) {
- debug("reconnect failed");
- this.backoff.reset();
- this.emitReserved("reconnect_failed");
- this._reconnecting = false;
- } else {
- var delay = this.backoff.duration();
- debug("will wait %dms before reconnect attempt", delay);
- this._reconnecting = true;
- var timer = this.setTimeoutFn(function () {
- if (self.skipReconnect) return;
- debug("attempting reconnect");
- _this3.emitReserved("reconnect_attempt", self.backoff.attempts); // check again for the case socket closed in above events
+ var callbacks = this._callbacks['$' + event];
+ if (!callbacks) return this; // remove all handlers
+ if (1 == arguments.length) {
+ delete this._callbacks['$' + event];
+ return this;
+ } // remove specific handler
- if (self.skipReconnect) return;
- self.open(function (err) {
- if (err) {
- debug("reconnect attempt error");
- self._reconnecting = false;
- self.reconnect();
- _this3.emitReserved("reconnect_error", err);
- } else {
- debug("reconnect success");
- self.onreconnect();
- }
- });
- }, delay);
+ var cb;
- if (this.opts.autoUnref) {
- timer.unref();
- }
+ for (var i = 0; i < callbacks.length; i++) {
+ cb = callbacks[i];
- this.subs.push(function subDestroy() {
- clearTimeout(timer);
- });
+ if (cb === fn || cb.fn === fn) {
+ callbacks.splice(i, 1);
+ break;
}
- }
- /**
- * Called upon successful reconnect.
- *
- * @private
- */
+ } // Remove event specific arrays for event types that no
+ // one is subscribed for to avoid memory leak.
- }, {
- key: "onreconnect",
- value: function onreconnect() {
- var attempt = this.backoff.attempts;
- this._reconnecting = false;
- this.backoff.reset();
- this.emitReserved("reconnect", attempt);
- }
- }]);
- return Manager;
-}(typed_events_1.StrictEventEmitter);
+ if (callbacks.length === 0) {
+ delete this._callbacks['$' + event];
+ }
-exports.Manager = Manager;
+ return this;
+ };
+ /**
+ * Emit `event` with the given args.
+ *
+ * @param {String} event
+ * @param {Mixed} ...
+ * @return {Emitter}
+ */
+
+
+ Emitter.prototype.emit = function (event) {
+ this._callbacks = this._callbacks || {};
+ var args = new Array(arguments.length - 1),
+ callbacks = this._callbacks['$' + event];
+
+ for (var i = 1; i < arguments.length; i++) {
+ args[i - 1] = arguments[i];
+ }
-/***/ }),
+ if (callbacks) {
+ callbacks = callbacks.slice(0);
-/***/ "./build/on.js":
-/*!*********************!*\
- !*** ./build/on.js ***!
- \*********************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ for (var i = 0, len = callbacks.length; i < len; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
-"use strict";
+ return this;
+ }; // alias used for reserved events (protected method)
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.on = void 0;
+ Emitter.prototype.emitReserved = Emitter.prototype.emit;
+ /**
+ * Return array of callbacks for `event`.
+ *
+ * @param {String} event
+ * @return {Array}
+ * @api public
+ */
-function on(obj, ev, fn) {
- obj.on(ev, fn);
- return function subDestroy() {
- obj.off(ev, fn);
+ Emitter.prototype.listeners = function (event) {
+ this._callbacks = this._callbacks || {};
+ return this._callbacks['$' + event] || [];
};
-}
+ /**
+ * Check if this emitter has `event` handlers.
+ *
+ * @param {String} event
+ * @return {Boolean}
+ * @api public
+ */
-exports.on = on;
-/***/ }),
+ Emitter.prototype.hasListeners = function (event) {
+ return !!this.listeners(event).length;
+ };
-/***/ "./build/socket.js":
-/*!*************************!*\
- !*** ./build/socket.js ***!
- \*************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ var PACKET_TYPES = Object.create(null); // no Map = no polyfill
+
+ PACKET_TYPES["open"] = "0";
+ PACKET_TYPES["close"] = "1";
+ PACKET_TYPES["ping"] = "2";
+ PACKET_TYPES["pong"] = "3";
+ PACKET_TYPES["message"] = "4";
+ PACKET_TYPES["upgrade"] = "5";
+ PACKET_TYPES["noop"] = "6";
+ var PACKET_TYPES_REVERSE = Object.create(null);
+ Object.keys(PACKET_TYPES).forEach(function (key) {
+ PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
+ });
+ var ERROR_PACKET = {
+ type: "error",
+ data: "parser error"
+ };
-"use strict";
+ var withNativeBlob$1 = typeof Blob === "function" || typeof Blob !== "undefined" && Object.prototype.toString.call(Blob) === "[object BlobConstructor]";
+ var withNativeArrayBuffer$2 = typeof ArrayBuffer === "function"; // ArrayBuffer.isView method is not defined in IE10
+ var isView$1 = function isView(obj) {
+ return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj && obj.buffer instanceof ArrayBuffer;
+ };
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+ var encodePacket = function encodePacket(_ref, supportsBinary, callback) {
+ var type = _ref.type,
+ data = _ref.data;
-function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
+ if (withNativeBlob$1 && data instanceof Blob) {
+ if (supportsBinary) {
+ return callback(data);
+ } else {
+ return encodeBlobAsBase64(data, callback);
+ }
+ } else if (withNativeArrayBuffer$2 && (data instanceof ArrayBuffer || isView$1(data))) {
+ if (supportsBinary) {
+ return callback(data);
+ } else {
+ return encodeBlobAsBase64(new Blob([data]), callback);
+ }
+ } // plain string
-function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
-function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
+ return callback(PACKET_TYPES[type] + (data || ""));
+ };
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+ var encodeBlobAsBase64 = function encodeBlobAsBase64(data, callback) {
+ var fileReader = new FileReader();
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+ fileReader.onload = function () {
+ var content = fileReader.result.split(",")[1];
+ callback("b" + content);
+ };
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+ return fileReader.readAsDataURL(data);
+ };
-function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
+ /*
+ * base64-arraybuffer 1.0.1
+ * Copyright (c) 2021 Niklas von Hertzen
+ * Released under MIT License
+ */
+ var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; // Use a lookup table to find the index.
-function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
+ var lookup$1 = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
+ for (var i$1 = 0; i$1 < chars.length; i$1++) {
+ lookup$1[chars.charCodeAt(i$1)] = i$1;
+ }
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+ var decode$1 = function decode(base64) {
+ var bufferLength = base64.length * 0.75,
+ len = base64.length,
+ i,
+ p = 0,
+ encoded1,
+ encoded2,
+ encoded3,
+ encoded4;
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
+ if (base64[base64.length - 1] === '=') {
+ bufferLength--;
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+ if (base64[base64.length - 2] === '=') {
+ bufferLength--;
+ }
+ }
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+ var arraybuffer = new ArrayBuffer(bufferLength),
+ bytes = new Uint8Array(arraybuffer);
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
+ for (i = 0; i < len; i += 4) {
+ encoded1 = lookup$1[base64.charCodeAt(i)];
+ encoded2 = lookup$1[base64.charCodeAt(i + 1)];
+ encoded3 = lookup$1[base64.charCodeAt(i + 2)];
+ encoded4 = lookup$1[base64.charCodeAt(i + 3)];
+ bytes[p++] = encoded1 << 2 | encoded2 >> 4;
+ bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
+ bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
+ }
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+ return arraybuffer;
+ };
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.Socket = void 0;
+ var withNativeArrayBuffer$1 = typeof ArrayBuffer === "function";
-var socket_io_parser_1 = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-parser/dist/index.js");
+ var decodePacket = function decodePacket(encodedPacket, binaryType) {
+ if (typeof encodedPacket !== "string") {
+ return {
+ type: "message",
+ data: mapBinary(encodedPacket, binaryType)
+ };
+ }
-var on_1 = __webpack_require__(/*! ./on */ "./build/on.js");
+ var type = encodedPacket.charAt(0);
-var typed_events_1 = __webpack_require__(/*! ./typed-events */ "./build/typed-events.js");
+ if (type === "b") {
+ return {
+ type: "message",
+ data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
+ };
+ }
-var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client:socket");
-/**
- * Internal events.
- * These events can't be emitted by the user.
- */
+ var packetType = PACKET_TYPES_REVERSE[type];
+ if (!packetType) {
+ return ERROR_PACKET;
+ }
-var RESERVED_EVENTS = Object.freeze({
- connect: 1,
- connect_error: 1,
- disconnect: 1,
- disconnecting: 1,
- // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
- newListener: 1,
- removeListener: 1
-});
+ return encodedPacket.length > 1 ? {
+ type: PACKET_TYPES_REVERSE[type],
+ data: encodedPacket.substring(1)
+ } : {
+ type: PACKET_TYPES_REVERSE[type]
+ };
+ };
-var Socket = /*#__PURE__*/function (_typed_events_1$Stric) {
- _inherits(Socket, _typed_events_1$Stric);
+ var decodeBase64Packet = function decodeBase64Packet(data, binaryType) {
+ if (withNativeArrayBuffer$1) {
+ var decoded = decode$1(data);
+ return mapBinary(decoded, binaryType);
+ } else {
+ return {
+ base64: true,
+ data: data
+ }; // fallback for old browsers
+ }
+ };
- var _super = _createSuper(Socket);
+ var mapBinary = function mapBinary(data, binaryType) {
+ switch (binaryType) {
+ case "blob":
+ return data instanceof ArrayBuffer ? new Blob([data]) : data;
- /**
- * `Socket` constructor.
- *
- * @public
- */
- function Socket(io, nsp, opts) {
- var _this;
-
- _classCallCheck(this, Socket);
-
- _this = _super.call(this);
- _this.connected = false;
- _this.disconnected = true;
- _this.receiveBuffer = [];
- _this.sendBuffer = [];
- _this.ids = 0;
- _this.acks = {};
- _this.flags = {};
- _this.io = io;
- _this.nsp = nsp;
-
- if (opts && opts.auth) {
- _this.auth = opts.auth;
+ case "arraybuffer":
+ default:
+ return data;
+ // assuming the data is already an ArrayBuffer
}
+ };
- if (_this.io._autoConnect) _this.open();
- return _this;
- }
- /**
- * Subscribe to open, close and packet events
- *
- * @private
- */
+ var SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
+ var encodePayload = function encodePayload(packets, callback) {
+ // some packets may be added to the array while encoding, so the initial length must be saved
+ var length = packets.length;
+ var encodedPackets = new Array(length);
+ var count = 0;
+ packets.forEach(function (packet, i) {
+ // force base64 encoding for binary packets
+ encodePacket(packet, false, function (encodedPacket) {
+ encodedPackets[i] = encodedPacket;
- _createClass(Socket, [{
- key: "subEvents",
- value: function subEvents() {
- if (this.subs) return;
- var io = this.io;
- this.subs = [(0, on_1.on)(io, "open", this.onopen.bind(this)), (0, on_1.on)(io, "packet", this.onpacket.bind(this)), (0, on_1.on)(io, "error", this.onerror.bind(this)), (0, on_1.on)(io, "close", this.onclose.bind(this))];
- }
- /**
- * Whether the Socket will try to reconnect when its Manager connects or reconnects
- */
+ if (++count === length) {
+ callback(encodedPackets.join(SEPARATOR));
+ }
+ });
+ });
+ };
- }, {
- key: "active",
- get: function get() {
- return !!this.subs;
- }
- /**
- * "Opens" the socket.
- *
- * @public
- */
+ var decodePayload = function decodePayload(encodedPayload, binaryType) {
+ var encodedPackets = encodedPayload.split(SEPARATOR);
+ var packets = [];
- }, {
- key: "connect",
- value: function connect() {
- if (this.connected) return this;
- this.subEvents();
- if (!this.io["_reconnecting"]) this.io.open(); // ensure open
+ for (var i = 0; i < encodedPackets.length; i++) {
+ var decodedPacket = decodePacket(encodedPackets[i], binaryType);
+ packets.push(decodedPacket);
- if ("open" === this.io._readyState) this.onopen();
- return this;
+ if (decodedPacket.type === "error") {
+ break;
+ }
}
- /**
- * Alias for connect()
- */
- }, {
- key: "open",
- value: function open() {
- return this.connect();
- }
+ return packets;
+ };
+
+ var protocol$1 = 4;
+
+ var Transport = /*#__PURE__*/function (_Emitter) {
+ _inherits(Transport, _Emitter);
+
+ var _super = _createSuper(Transport);
+
/**
- * Sends a `message` event.
+ * Transport abstract constructor.
*
- * @return self
- * @public
+ * @param {Object} options.
+ * @api private
*/
+ function Transport(opts) {
+ var _this;
- }, {
- key: "send",
- value: function send() {
- for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
- args[_key] = arguments[_key];
- }
+ _classCallCheck(this, Transport);
- args.unshift("message");
- this.emit.apply(this, args);
- return this;
+ _this = _super.call(this);
+ _this.writable = false;
+ installTimerFunctions(_assertThisInitialized(_this), opts);
+ _this.opts = opts;
+ _this.query = opts.query;
+ _this.readyState = "";
+ _this.socket = opts.socket;
+ return _this;
}
/**
- * Override `emit`.
- * If the event is in `events`, it's emitted normally.
+ * Emits an error.
*
- * @return self
- * @public
+ * @param {String} str
+ * @return {Transport} for chaining
+ * @api protected
*/
- }, {
- key: "emit",
- value: function emit(ev) {
- if (RESERVED_EVENTS.hasOwnProperty(ev)) {
- throw new Error('"' + ev + '" is a reserved event name');
- }
- for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
- args[_key2 - 1] = arguments[_key2];
- }
+ _createClass(Transport, [{
+ key: "onError",
+ value: function onError(msg, desc) {
+ var err = new Error(msg); // @ts-ignore
- args.unshift(ev);
- var packet = {
- type: socket_io_parser_1.PacketType.EVENT,
- data: args
- };
- packet.options = {};
- packet.options.compress = this.flags.compress !== false; // event ack callback
+ err.type = "TransportError"; // @ts-ignore
- if ("function" === typeof args[args.length - 1]) {
- debug("emitting packet with ack id %d", this.ids);
- this.acks[this.ids] = args.pop();
- packet.id = this.ids++;
+ err.description = desc;
+
+ _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "error", err);
+
+ return this;
}
+ /**
+ * Opens the transport.
+ *
+ * @api public
+ */
+
+ }, {
+ key: "open",
+ value: function open() {
+ if ("closed" === this.readyState || "" === this.readyState) {
+ this.readyState = "opening";
+ this.doOpen();
+ }
- var isTransportWritable = this.io.engine && this.io.engine.transport && this.io.engine.transport.writable;
- var discardPacket = this.flags["volatile"] && (!isTransportWritable || !this.connected);
+ return this;
+ }
+ /**
+ * Closes the transport.
+ *
+ * @api public
+ */
+
+ }, {
+ key: "close",
+ value: function close() {
+ if ("opening" === this.readyState || "open" === this.readyState) {
+ this.doClose();
+ this.onClose();
+ }
- if (discardPacket) {
- debug("discard packet as the transport is not currently writable");
- } else if (this.connected) {
- this.packet(packet);
- } else {
- this.sendBuffer.push(packet);
+ return this;
+ }
+ /**
+ * Sends multiple packets.
+ *
+ * @param {Array} packets
+ * @api public
+ */
+
+ }, {
+ key: "send",
+ value: function send(packets) {
+ if ("open" === this.readyState) {
+ this.write(packets);
+ }
}
+ /**
+ * Called upon open
+ *
+ * @api protected
+ */
+
+ }, {
+ key: "onOpen",
+ value: function onOpen() {
+ this.readyState = "open";
+ this.writable = true;
+
+ _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "open");
+ }
+ /**
+ * Called with data.
+ *
+ * @param {String} data
+ * @api protected
+ */
+
+ }, {
+ key: "onData",
+ value: function onData(data) {
+ var packet = decodePacket(data, this.socket.binaryType);
+ this.onPacket(packet);
+ }
+ /**
+ * Called with a decoded packet.
+ *
+ * @api protected
+ */
+
+ }, {
+ key: "onPacket",
+ value: function onPacket(packet) {
+ _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "packet", packet);
+ }
+ /**
+ * Called upon close.
+ *
+ * @api protected
+ */
+
+ }, {
+ key: "onClose",
+ value: function onClose() {
+ this.readyState = "closed";
+
+ _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "close");
+ }
+ }]);
- this.flags = {};
- return this;
- }
- /**
- * Sends a packet.
- *
- * @param packet
- * @private
- */
+ return Transport;
+ }(Emitter_1);
- }, {
- key: "packet",
- value: function packet(_packet) {
- _packet.nsp = this.nsp;
+ var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''),
+ length = 64,
+ map = {},
+ seed = 0,
+ i = 0,
+ prev;
+ /**
+ * Return a string representing the specified number.
+ *
+ * @param {Number} num The number to convert.
+ * @returns {String} The string representation of the number.
+ * @api public
+ */
- this.io._packet(_packet);
- }
- /**
- * Called upon engine `open`.
- *
- * @private
- */
+ function encode(num) {
+ var encoded = '';
- }, {
- key: "onopen",
- value: function onopen() {
- var _this2 = this;
+ do {
+ encoded = alphabet[num % length] + encoded;
+ num = Math.floor(num / length);
+ } while (num > 0);
- debug("transport is open - connecting");
+ return encoded;
+ }
+ /**
+ * Return the integer value specified by the given string.
+ *
+ * @param {String} str The string to convert.
+ * @returns {Number} The integer value represented by the string.
+ * @api public
+ */
- if (typeof this.auth == "function") {
- this.auth(function (data) {
- _this2.packet({
- type: socket_io_parser_1.PacketType.CONNECT,
- data: data
- });
- });
- } else {
- this.packet({
- type: socket_io_parser_1.PacketType.CONNECT,
- data: this.auth
- });
- }
- }
- /**
- * Called upon engine or manager `error`.
- *
- * @param err
- * @private
- */
- }, {
- key: "onerror",
- value: function onerror(err) {
- if (!this.connected) {
- this.emitReserved("connect_error", err);
- }
- }
- /**
- * Called upon engine `close`.
- *
- * @param reason
- * @private
- */
+ function decode(str) {
+ var decoded = 0;
- }, {
- key: "onclose",
- value: function onclose(reason) {
- debug("close (%s)", reason);
- this.connected = false;
- this.disconnected = true;
- delete this.id;
- this.emitReserved("disconnect", reason);
+ for (i = 0; i < str.length; i++) {
+ decoded = decoded * length + map[str.charAt(i)];
}
- /**
- * Called with socket packet.
- *
- * @param packet
- * @private
- */
- }, {
- key: "onpacket",
- value: function onpacket(packet) {
- var sameNamespace = packet.nsp === this.nsp;
- if (!sameNamespace) return;
-
- switch (packet.type) {
- case socket_io_parser_1.PacketType.CONNECT:
- if (packet.data && packet.data.sid) {
- var id = packet.data.sid;
- this.onconnect(id);
- } else {
- this.emitReserved("connect_error", new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));
- }
+ return decoded;
+ }
+ /**
+ * Yeast: A tiny growing id generator.
+ *
+ * @returns {String} A unique id.
+ * @api public
+ */
- break;
- case socket_io_parser_1.PacketType.EVENT:
- this.onevent(packet);
- break;
+ function yeast() {
+ var now = encode(+new Date());
+ if (now !== prev) return seed = 0, prev = now;
+ return now + '.' + encode(seed++);
+ } //
+ // Map each character to its index.
+ //
- case socket_io_parser_1.PacketType.BINARY_EVENT:
- this.onevent(packet);
- break;
- case socket_io_parser_1.PacketType.ACK:
- this.onack(packet);
- break;
+ for (; i < length; i++) {
+ map[alphabet[i]] = i;
+ } //
+ // Expose the `yeast`, `encode` and `decode` functions.
+ //
- case socket_io_parser_1.PacketType.BINARY_ACK:
- this.onack(packet);
- break;
- case socket_io_parser_1.PacketType.DISCONNECT:
- this.ondisconnect();
- break;
+ yeast.encode = encode;
+ yeast.decode = decode;
+ var yeast_1 = yeast;
- case socket_io_parser_1.PacketType.CONNECT_ERROR:
- var err = new Error(packet.data.message); // @ts-ignore
+ var parseqs = {};
- err.data = packet.data.data;
- this.emitReserved("connect_error", err);
- break;
+ /**
+ * Compiles a querystring
+ * Returns string representation of the object
+ *
+ * @param {Object}
+ * @api private
+ */
+
+ parseqs.encode = function (obj) {
+ var str = '';
+
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) {
+ if (str.length) str += '&';
+ str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
}
}
- /**
- * Called upon a server event.
- *
- * @param packet
- * @private
- */
- }, {
- key: "onevent",
- value: function onevent(packet) {
- var args = packet.data || [];
- debug("emitting event %j", args);
+ return str;
+ };
+ /**
+ * Parses a simple querystring into an object
+ *
+ * @param {String} qs
+ * @api private
+ */
+
- if (null != packet.id) {
- debug("attaching ack callback to event");
- args.push(this.ack(packet.id));
- }
+ parseqs.decode = function (qs) {
+ var qry = {};
+ var pairs = qs.split('&');
- if (this.connected) {
- this.emitEvent(args);
- } else {
- this.receiveBuffer.push(Object.freeze(args));
- }
+ for (var i = 0, l = pairs.length; i < l; i++) {
+ var pair = pairs[i].split('=');
+ qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
}
- }, {
- key: "emitEvent",
- value: function emitEvent(args) {
- if (this._anyListeners && this._anyListeners.length) {
- var listeners = this._anyListeners.slice();
- var _iterator = _createForOfIteratorHelper(listeners),
- _step;
+ return qry;
+ };
+
+ var Polling = /*#__PURE__*/function (_Transport) {
+ _inherits(Polling, _Transport);
- try {
- for (_iterator.s(); !(_step = _iterator.n()).done;) {
- var listener = _step.value;
- listener.apply(this, args);
- }
- } catch (err) {
- _iterator.e(err);
- } finally {
- _iterator.f();
- }
- }
+ var _super = _createSuper(Polling);
- _get(_getPrototypeOf(Socket.prototype), "emit", this).apply(this, args);
- }
- /**
- * Produces an ack callback to emit with an event.
- *
- * @private
- */
+ function Polling() {
+ var _this;
- }, {
- key: "ack",
- value: function ack(id) {
- var self = this;
- var sent = false;
- return function () {
- // prevent double callbacks
- if (sent) return;
- sent = true;
-
- for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
- args[_key3] = arguments[_key3];
- }
+ _classCallCheck(this, Polling);
- debug("sending ack %j", args);
- self.packet({
- type: socket_io_parser_1.PacketType.ACK,
- id: id,
- data: args
- });
- };
+ _this = _super.apply(this, arguments);
+ _this.polling = false;
+ return _this;
}
/**
- * Called upon a server acknowlegement.
- *
- * @param packet
- * @private
+ * Transport name.
*/
- }, {
- key: "onack",
- value: function onack(packet) {
- var ack = this.acks[packet.id];
- if ("function" === typeof ack) {
- debug("calling ack %s with %j", packet.id, packet.data);
- ack.apply(this, packet.data);
- delete this.acks[packet.id];
- } else {
- debug("bad ack %s", packet.id);
+ _createClass(Polling, [{
+ key: "name",
+ get: function get() {
+ return "polling";
}
- }
- /**
- * Called upon server connect.
- *
- * @private
- */
+ /**
+ * Opens the socket (triggers polling). We write a PING message to determine
+ * when the transport is open.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "doOpen",
+ value: function doOpen() {
+ this.poll();
+ }
+ /**
+ * Pauses polling.
+ *
+ * @param {Function} callback upon buffers are flushed and transport is paused
+ * @api private
+ */
+
+ }, {
+ key: "pause",
+ value: function pause(onPause) {
+ var _this2 = this;
+
+ this.readyState = "pausing";
+
+ var pause = function pause() {
+ _this2.readyState = "paused";
+ onPause();
+ };
- }, {
- key: "onconnect",
- value: function onconnect(id) {
- debug("socket connected with id %s", id);
- this.id = id;
- this.connected = true;
- this.disconnected = false;
- this.emitBuffered();
- this.emitReserved("connect");
- }
- /**
- * Emit buffered events (received and emitted).
- *
- * @private
- */
+ if (this.polling || !this.writable) {
+ var total = 0;
- }, {
- key: "emitBuffered",
- value: function emitBuffered() {
- var _this3 = this;
+ if (this.polling) {
+ total++;
+ this.once("pollComplete", function () {
+ --total || pause();
+ });
+ }
- this.receiveBuffer.forEach(function (args) {
- return _this3.emitEvent(args);
- });
- this.receiveBuffer = [];
- this.sendBuffer.forEach(function (packet) {
- return _this3.packet(packet);
- });
- this.sendBuffer = [];
- }
- /**
- * Called upon server disconnect.
- *
- * @private
- */
+ if (!this.writable) {
+ total++;
+ this.once("drain", function () {
+ --total || pause();
+ });
+ }
+ } else {
+ pause();
+ }
+ }
+ /**
+ * Starts polling cycle.
+ *
+ * @api public
+ */
+
+ }, {
+ key: "poll",
+ value: function poll() {
+ this.polling = true;
+ this.doPoll();
+ this.emit("poll");
+ }
+ /**
+ * Overloads onData to detect payloads.
+ *
+ * @api private
+ */
- }, {
- key: "ondisconnect",
- value: function ondisconnect() {
- debug("server disconnect (%s)", this.nsp);
- this.destroy();
- this.onclose("io server disconnect");
- }
- /**
- * Called upon forced client/server side disconnections,
- * this method ensures the manager stops tracking us and
- * that reconnections don't get triggered for this.
- *
- * @private
- */
+ }, {
+ key: "onData",
+ value: function onData(data) {
+ var _this3 = this;
- }, {
- key: "destroy",
- value: function destroy() {
- if (this.subs) {
- // clean subscriptions to avoid reconnections
- this.subs.forEach(function (subDestroy) {
- return subDestroy();
- });
- this.subs = undefined;
- }
+ var callback = function callback(packet) {
+ // if its the first message we consider the transport open
+ if ("opening" === _this3.readyState && packet.type === "open") {
+ _this3.onOpen();
+ } // if its a close packet, we close the ongoing requests
- this.io["_destroy"](this);
- }
- /**
- * Disconnects the socket manually.
- *
- * @return self
- * @public
- */
- }, {
- key: "disconnect",
- value: function disconnect() {
- if (this.connected) {
- debug("performing disconnect (%s)", this.nsp);
- this.packet({
- type: socket_io_parser_1.PacketType.DISCONNECT
- });
- } // remove socket from pool
+ if ("close" === packet.type) {
+ _this3.onClose();
+ return false;
+ } // otherwise bypass onData and handle the message
- this.destroy();
- if (this.connected) {
- // fire events
- this.onclose("io client disconnect");
- }
+ _this3.onPacket(packet);
+ }; // decode payload
- return this;
- }
- /**
- * Alias for disconnect()
- *
- * @return self
- * @public
- */
- }, {
- key: "close",
- value: function close() {
- return this.disconnect();
- }
- /**
- * Sets the compress flag.
- *
- * @param compress - if `true`, compresses the sending data
- * @return self
- * @public
- */
+ decodePayload(data, this.socket.binaryType).forEach(callback); // if an event did not trigger closing
- }, {
- key: "compress",
- value: function compress(_compress) {
- this.flags.compress = _compress;
- return this;
- }
- /**
- * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not
- * ready to send messages.
- *
- * @returns self
- * @public
- */
+ if ("closed" !== this.readyState) {
+ // if we got data we're not polling
+ this.polling = false;
+ this.emit("pollComplete");
- }, {
- key: "volatile",
- get: function get() {
- this.flags["volatile"] = true;
- return this;
- }
- /**
- * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
- * callback.
- *
- * @param listener
- * @public
- */
+ if ("open" === this.readyState) {
+ this.poll();
+ }
+ }
+ }
+ /**
+ * For polling, send a close packet.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "doClose",
+ value: function doClose() {
+ var _this4 = this;
+
+ var close = function close() {
+ _this4.write([{
+ type: "close"
+ }]);
+ };
+
+ if ("open" === this.readyState) {
+ close();
+ } else {
+ // in case we're trying to close while
+ // handshaking is in progress (GH-164)
+ this.once("open", close);
+ }
+ }
+ /**
+ * Writes a packets payload.
+ *
+ * @param {Array} data packets
+ * @param {Function} drain callback
+ * @api private
+ */
+
+ }, {
+ key: "write",
+ value: function write(packets) {
+ var _this5 = this;
+
+ this.writable = false;
+ encodePayload(packets, function (data) {
+ _this5.doWrite(data, function () {
+ _this5.writable = true;
+
+ _this5.emit("drain");
+ });
+ });
+ }
+ /**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "uri",
+ value: function uri() {
+ var query = this.query || {};
+ var schema = this.opts.secure ? "https" : "http";
+ var port = ""; // cache busting is forced
+
+ if (false !== this.opts.timestampRequests) {
+ query[this.opts.timestampParam] = yeast_1();
+ }
- }, {
- key: "onAny",
- value: function onAny(listener) {
- this._anyListeners = this._anyListeners || [];
+ if (!this.supportsBinary && !query.sid) {
+ query.b64 = 1;
+ } // avoid port if default for schema
- this._anyListeners.push(listener);
- return this;
- }
+ if (this.opts.port && ("https" === schema && Number(this.opts.port) !== 443 || "http" === schema && Number(this.opts.port) !== 80)) {
+ port = ":" + this.opts.port;
+ }
+
+ var encodedQuery = parseqs.encode(query);
+ var ipv6 = this.opts.hostname.indexOf(":") !== -1;
+ return schema + "://" + (ipv6 ? "[" + this.opts.hostname + "]" : this.opts.hostname) + port + this.opts.path + (encodedQuery.length ? "?" + encodedQuery : "");
+ }
+ }]);
+
+ return Polling;
+ }(Transport);
+
+ /**
+ * Empty function
+ */
+
+ function empty() {}
+
+ var hasXHR2 = function () {
+ var xhr = new XMLHttpRequest$1({
+ xdomain: false
+ });
+ return null != xhr.responseType;
+ }();
+
+ var XHR = /*#__PURE__*/function (_Polling) {
+ _inherits(XHR, _Polling);
+
+ var _super = _createSuper(XHR);
+
/**
- * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
- * callback. The listener is added to the beginning of the listeners array.
+ * XHR Polling constructor.
*
- * @param listener
- * @public
+ * @param {Object} opts
+ * @api public
*/
+ function XHR(opts) {
+ var _this;
- }, {
- key: "prependAny",
- value: function prependAny(listener) {
- this._anyListeners = this._anyListeners || [];
+ _classCallCheck(this, XHR);
- this._anyListeners.unshift(listener);
+ _this = _super.call(this, opts);
- return this;
+ if (typeof location !== "undefined") {
+ var isSSL = "https:" === location.protocol;
+ var port = location.port; // some user agents have empty `location.port`
+
+ if (!port) {
+ port = isSSL ? "443" : "80";
+ }
+
+ _this.xd = typeof location !== "undefined" && opts.hostname !== location.hostname || port !== opts.port;
+ _this.xs = opts.secure !== isSSL;
+ }
+ /**
+ * XHR supports binary
+ */
+
+
+ var forceBase64 = opts && opts.forceBase64;
+ _this.supportsBinary = hasXHR2 && !forceBase64;
+ return _this;
}
/**
- * Removes the listener that will be fired when any event is emitted.
+ * Creates a request.
*
- * @param listener
- * @public
+ * @param {String} method
+ * @api private
*/
- }, {
- key: "offAny",
- value: function offAny(listener) {
- if (!this._anyListeners) {
- return this;
- }
- if (listener) {
- var listeners = this._anyListeners;
+ _createClass(XHR, [{
+ key: "request",
+ value: function request() {
+ var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
- for (var i = 0; i < listeners.length; i++) {
- if (listener === listeners[i]) {
- listeners.splice(i, 1);
- return this;
- }
- }
- } else {
- this._anyListeners = [];
+ _extends(opts, {
+ xd: this.xd,
+ xs: this.xs
+ }, this.opts);
+
+ return new Request(this.uri(), opts);
+ }
+ /**
+ * Sends data.
+ *
+ * @param {String} data to send.
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+ }, {
+ key: "doWrite",
+ value: function doWrite(data, fn) {
+ var _this2 = this;
+
+ var req = this.request({
+ method: "POST",
+ data: data
+ });
+ req.on("success", fn);
+ req.on("error", function (err) {
+ _this2.onError("xhr post error", err);
+ });
}
+ /**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "doPoll",
+ value: function doPoll() {
+ var _this3 = this;
+
+ var req = this.request();
+ req.on("data", this.onData.bind(this));
+ req.on("error", function (err) {
+ _this3.onError("xhr poll error", err);
+ });
+ this.pollXhr = req;
+ }
+ }]);
+
+ return XHR;
+ }(Polling);
+ var Request = /*#__PURE__*/function (_Emitter) {
+ _inherits(Request, _Emitter);
+
+ var _super2 = _createSuper(Request);
- return this;
- }
/**
- * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
- * e.g. to remove listeners.
+ * Request constructor
*
- * @public
+ * @param {Object} options
+ * @api public
*/
+ function Request(uri, opts) {
+ var _this4;
- }, {
- key: "listenersAny",
- value: function listenersAny() {
- return this._anyListeners || [];
- }
- }]);
-
- return Socket;
-}(typed_events_1.StrictEventEmitter);
+ _classCallCheck(this, Request);
-exports.Socket = Socket;
+ _this4 = _super2.call(this);
+ installTimerFunctions(_assertThisInitialized(_this4), opts);
+ _this4.opts = opts;
+ _this4.method = opts.method || "GET";
+ _this4.uri = uri;
+ _this4.async = false !== opts.async;
+ _this4.data = undefined !== opts.data ? opts.data : null;
-/***/ }),
+ _this4.create();
-/***/ "./build/typed-events.js":
-/*!*******************************!*\
- !*** ./build/typed-events.js ***!
- \*******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ return _this4;
+ }
+ /**
+ * Creates the XHR object and sends the request.
+ *
+ * @api private
+ */
-"use strict";
+ _createClass(Request, [{
+ key: "create",
+ value: function create() {
+ var _this5 = this;
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+ var opts = pick(this.opts, "agent", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "autoUnref");
+ opts.xdomain = !!this.opts.xd;
+ opts.xscheme = !!this.opts.xs;
+ var xhr = this.xhr = new XMLHttpRequest$1(opts);
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+ try {
+ xhr.open(this.method, this.uri, this.async);
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+ try {
+ if (this.opts.extraHeaders) {
+ xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+ for (var i in this.opts.extraHeaders) {
+ if (this.opts.extraHeaders.hasOwnProperty(i)) {
+ xhr.setRequestHeader(i, this.opts.extraHeaders[i]);
+ }
+ }
+ }
+ } catch (e) {}
-function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
+ if ("POST" === this.method) {
+ try {
+ xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
+ } catch (e) {}
+ }
-function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
+ try {
+ xhr.setRequestHeader("Accept", "*/*");
+ } catch (e) {} // ie6 check
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+ if ("withCredentials" in xhr) {
+ xhr.withCredentials = this.opts.withCredentials;
+ }
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
+ if (this.opts.requestTimeout) {
+ xhr.timeout = this.opts.requestTimeout;
+ }
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+ xhr.onreadystatechange = function () {
+ if (4 !== xhr.readyState) return;
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+ if (200 === xhr.status || 1223 === xhr.status) {
+ _this5.onLoad();
+ } else {
+ // make sure the `error` event handler that's user-set
+ // does not throw in the same tick and gets caught here
+ _this5.setTimeoutFn(function () {
+ _this5.onError(typeof xhr.status === "number" ? xhr.status : 0);
+ }, 0);
+ }
+ };
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
+ xhr.send(this.data);
+ } catch (e) {
+ // Need to defer since .create() is called directly from the constructor
+ // and thus the 'error' event can only be only bound *after* this exception
+ // occurs. Therefore, also, we cannot throw here at all.
+ this.setTimeoutFn(function () {
+ _this5.onError(e);
+ }, 0);
+ return;
+ }
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+ if (typeof document !== "undefined") {
+ this.index = Request.requestsCount++;
+ Request.requests[this.index] = this;
+ }
+ }
+ /**
+ * Called upon successful response.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onSuccess",
+ value: function onSuccess() {
+ this.emit("success");
+ this.cleanup();
+ }
+ /**
+ * Called if we have data.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onData",
+ value: function onData(data) {
+ this.emit("data", data);
+ this.onSuccess();
+ }
+ /**
+ * Called upon error.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onError",
+ value: function onError(err) {
+ this.emit("error", err);
+ this.cleanup(true);
+ }
+ /**
+ * Cleans up house.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "cleanup",
+ value: function cleanup(fromError) {
+ if ("undefined" === typeof this.xhr || null === this.xhr) {
+ return;
+ }
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.StrictEventEmitter = void 0;
+ this.xhr.onreadystatechange = empty;
-var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
-/**
- * Strictly typed version of an `EventEmitter`. A `TypedEventEmitter` takes type
- * parameters for mappings of event names to event data types, and strictly
- * types method calls to the `EventEmitter` according to these event maps.
- *
- * @typeParam ListenEvents - `EventsMap` of user-defined events that can be
- * listened to with `on` or `once`
- * @typeParam EmitEvents - `EventsMap` of user-defined events that can be
- * emitted with `emit`
- * @typeParam ReservedEvents - `EventsMap` of reserved events, that can be
- * emitted by socket.io with `emitReserved`, and can be listened to with
- * `listen`.
- */
+ if (fromError) {
+ try {
+ this.xhr.abort();
+ } catch (e) {}
+ }
+ if (typeof document !== "undefined") {
+ delete Request.requests[this.index];
+ }
-var StrictEventEmitter = /*#__PURE__*/function (_Emitter) {
- _inherits(StrictEventEmitter, _Emitter);
+ this.xhr = null;
+ }
+ /**
+ * Called upon load.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onLoad",
+ value: function onLoad() {
+ var data = this.xhr.responseText;
+
+ if (data !== null) {
+ this.onData(data);
+ }
+ }
+ /**
+ * Aborts the request.
+ *
+ * @api public
+ */
+
+ }, {
+ key: "abort",
+ value: function abort() {
+ this.cleanup();
+ }
+ }]);
- var _super = _createSuper(StrictEventEmitter);
+ return Request;
+ }(Emitter_1);
+ Request.requestsCount = 0;
+ Request.requests = {};
+ /**
+ * Aborts pending requests when unloading the window. This is needed to prevent
+ * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+ * emitted.
+ */
- function StrictEventEmitter() {
- _classCallCheck(this, StrictEventEmitter);
+ if (typeof document !== "undefined") {
+ // @ts-ignore
+ if (typeof attachEvent === "function") {
+ // @ts-ignore
+ attachEvent("onunload", unloadHandler);
+ } else if (typeof addEventListener === "function") {
+ var terminationEvent = "onpagehide" in globalThis ? "pagehide" : "unload";
+ addEventListener(terminationEvent, unloadHandler, false);
+ }
+ }
- return _super.apply(this, arguments);
+ function unloadHandler() {
+ for (var i in Request.requests) {
+ if (Request.requests.hasOwnProperty(i)) {
+ Request.requests[i].abort();
+ }
+ }
}
- _createClass(StrictEventEmitter, [{
- key: "on",
- value:
- /**
- * Adds the `listener` function as an event listener for `ev`.
- *
- * @param ev Name of the event
- * @param listener Callback function
- */
- function on(ev, listener) {
- _get(_getPrototypeOf(StrictEventEmitter.prototype), "on", this).call(this, ev, listener);
+ var nextTick = function () {
+ var isPromiseAvailable = typeof Promise === "function" && typeof Promise.resolve === "function";
- return this;
+ if (isPromiseAvailable) {
+ return function (cb) {
+ return Promise.resolve().then(cb);
+ };
+ } else {
+ return function (cb, setTimeoutFn) {
+ return setTimeoutFn(cb, 0);
+ };
}
+ }();
+ var WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;
+ var usingBrowserWebSocket = true;
+ var defaultBinaryType = "arraybuffer";
+
+ var isReactNative = typeof navigator !== "undefined" && typeof navigator.product === "string" && navigator.product.toLowerCase() === "reactnative";
+ var WS = /*#__PURE__*/function (_Transport) {
+ _inherits(WS, _Transport);
+
+ var _super = _createSuper(WS);
+
/**
- * Adds a one-time `listener` function as an event listener for `ev`.
+ * WebSocket transport constructor.
*
- * @param ev Name of the event
- * @param listener Callback function
+ * @api {Object} connection options
+ * @api public
*/
+ function WS(opts) {
+ var _this;
- }, {
- key: "once",
- value: function once(ev, listener) {
- _get(_getPrototypeOf(StrictEventEmitter.prototype), "once", this).call(this, ev, listener);
+ _classCallCheck(this, WS);
- return this;
+ _this = _super.call(this, opts);
+ _this.supportsBinary = !opts.forceBase64;
+ return _this;
}
/**
- * Emits an event.
+ * Transport name.
*
- * @param ev Name of the event
- * @param args Values to send to listeners of this event
+ * @api public
*/
- }, {
- key: "emit",
- value: function emit(ev) {
- var _get2;
- for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
- args[_key - 1] = arguments[_key];
+ _createClass(WS, [{
+ key: "name",
+ get: function get() {
+ return "websocket";
}
+ /**
+ * Opens socket.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "doOpen",
+ value: function doOpen() {
+ if (!this.check()) {
+ // let probe timeout
+ return;
+ }
- (_get2 = _get(_getPrototypeOf(StrictEventEmitter.prototype), "emit", this)).call.apply(_get2, [this, ev].concat(args));
-
- return this;
- }
- /**
- * Emits a reserved event.
- *
- * This method is `protected`, so that only a class extending
- * `StrictEventEmitter` can emit its own reserved events.
- *
- * @param ev Reserved event name
- * @param args Arguments to emit along with the event
- */
+ var uri = this.uri();
+ var protocols = this.opts.protocols; // React Native only supports the 'headers' option, and will print a warning if anything else is passed
- }, {
- key: "emitReserved",
- value: function emitReserved(ev) {
- var _get3;
+ var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress", "protocolVersion", "origin", "maxPayload", "family", "checkServerIdentity");
- for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
- args[_key2 - 1] = arguments[_key2];
- }
+ if (this.opts.extraHeaders) {
+ opts.headers = this.opts.extraHeaders;
+ }
- (_get3 = _get(_getPrototypeOf(StrictEventEmitter.prototype), "emit", this)).call.apply(_get3, [this, ev].concat(args));
+ try {
+ this.ws = usingBrowserWebSocket && !isReactNative ? protocols ? new WebSocket(uri, protocols) : new WebSocket(uri) : new WebSocket(uri, protocols, opts);
+ } catch (err) {
+ return this.emit("error", err);
+ }
- return this;
- }
- /**
- * Returns the listeners listening to an event.
- *
- * @param event Event name
- * @returns Array of listeners subscribed to `event`
- */
+ this.ws.binaryType = this.socket.binaryType || defaultBinaryType;
+ this.addEventListeners();
+ }
+ /**
+ * Adds event listeners to the socket
+ *
+ * @api private
+ */
+
+ }, {
+ key: "addEventListeners",
+ value: function addEventListeners() {
+ var _this2 = this;
+
+ this.ws.onopen = function () {
+ if (_this2.opts.autoUnref) {
+ _this2.ws._socket.unref();
+ }
- }, {
- key: "listeners",
- value: function listeners(event) {
- return _get(_getPrototypeOf(StrictEventEmitter.prototype), "listeners", this).call(this, event);
- }
- }]);
+ _this2.onOpen();
+ };
- return StrictEventEmitter;
-}(Emitter);
+ this.ws.onclose = this.onClose.bind(this);
-exports.StrictEventEmitter = StrictEventEmitter;
+ this.ws.onmessage = function (ev) {
+ return _this2.onData(ev.data);
+ };
-/***/ }),
+ this.ws.onerror = function (e) {
+ return _this2.onError("websocket error", e);
+ };
+ }
+ /**
+ * Writes data to socket.
+ *
+ * @param {Array} array of packets.
+ * @api private
+ */
+
+ }, {
+ key: "write",
+ value: function write(packets) {
+ var _this3 = this;
+
+ this.writable = false; // encodePacket efficient as it uses WS framing
+ // no need for encodePayload
+
+ var _loop = function _loop(i) {
+ var packet = packets[i];
+ var lastPacket = i === packets.length - 1;
+ encodePacket(packet, _this3.supportsBinary, function (data) {
+ // always create a new object (GH-437)
+ var opts = {};
+ // have a chance of informing us about it yet, in that case send will
+ // throw an error
+
+
+ try {
+ if (usingBrowserWebSocket) {
+ // TypeError is thrown when passing the second argument on Safari
+ _this3.ws.send(data);
+ }
+ } catch (e) {}
-/***/ "./build/url.js":
-/*!**********************!*\
- !*** ./build/url.js ***!
- \**********************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ if (lastPacket) {
+ // fake drain
+ // defer to next tick to allow Socket to clear writeBuffer
+ nextTick(function () {
+ _this3.writable = true;
-"use strict";
+ _this3.emit("drain");
+ }, _this3.setTimeoutFn);
+ }
+ });
+ };
+ for (var i = 0; i < packets.length; i++) {
+ _loop(i);
+ }
+ }
+ /**
+ * Closes socket.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "doClose",
+ value: function doClose() {
+ if (typeof this.ws !== "undefined") {
+ this.ws.close();
+ this.ws = null;
+ }
+ }
+ /**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.url = void 0;
+ }, {
+ key: "uri",
+ value: function uri() {
+ var query = this.query || {};
+ var schema = this.opts.secure ? "wss" : "ws";
+ var port = ""; // avoid port if default for schema
-var parseuri = __webpack_require__(/*! parseuri */ "./node_modules/parseuri/index.js");
+ if (this.opts.port && ("wss" === schema && Number(this.opts.port) !== 443 || "ws" === schema && Number(this.opts.port) !== 80)) {
+ port = ":" + this.opts.port;
+ } // append timestamp to URI
-var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client:url");
-/**
- * URL parser.
- *
- * @param uri - url
- * @param path - the request path of the connection
- * @param loc - An object meant to mimic window.location.
- * Defaults to window.location.
- * @public
- */
+ if (this.opts.timestampRequests) {
+ query[this.opts.timestampParam] = yeast_1();
+ } // communicate binary support capabilities
-function url(uri) {
- var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "";
- var loc = arguments.length > 2 ? arguments[2] : undefined;
- var obj = uri; // default to window.location
- loc = loc || typeof location !== "undefined" && location;
- if (null == uri) uri = loc.protocol + "//" + loc.host; // relative path support
+ if (!this.supportsBinary) {
+ query.b64 = 1;
+ }
- if (typeof uri === "string") {
- if ("/" === uri.charAt(0)) {
- if ("/" === uri.charAt(1)) {
- uri = loc.protocol + uri;
- } else {
- uri = loc.host + uri;
+ var encodedQuery = parseqs.encode(query);
+ var ipv6 = this.opts.hostname.indexOf(":") !== -1;
+ return schema + "://" + (ipv6 ? "[" + this.opts.hostname + "]" : this.opts.hostname) + port + this.opts.path + (encodedQuery.length ? "?" + encodedQuery : "");
}
- }
+ /**
+ * Feature detection for WebSocket.
+ *
+ * @return {Boolean} whether this transport is available.
+ * @api public
+ */
+
+ }, {
+ key: "check",
+ value: function check() {
+ return !!WebSocket && !("__initialize" in WebSocket && this.name === WS.prototype.name);
+ }
+ }]);
- if (!/^(https?|wss?):\/\//.test(uri)) {
- debug("protocol-less url %s", uri);
+ return WS;
+ }(Transport);
- if ("undefined" !== typeof loc) {
- uri = loc.protocol + "//" + uri;
- } else {
- uri = "https://" + uri;
- }
- } // parse
+ var transports = {
+ websocket: WS,
+ polling: XHR
+ };
+ var Socket$1 = /*#__PURE__*/function (_Emitter) {
+ _inherits(Socket, _Emitter);
- debug("parse %s", uri);
- obj = parseuri(uri);
- } // make sure we treat `localhost:80` and `localhost` equally
+ var _super = _createSuper(Socket);
+ /**
+ * Socket constructor.
+ *
+ * @param {String|Object} uri or options
+ * @param {Object} opts - options
+ * @api public
+ */
+ function Socket(uri) {
+ var _this;
- if (!obj.port) {
- if (/^(http|ws)$/.test(obj.protocol)) {
- obj.port = "80";
- } else if (/^(http|ws)s$/.test(obj.protocol)) {
- obj.port = "443";
- }
- }
+ var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
- obj.path = obj.path || "/";
- var ipv6 = obj.host.indexOf(":") !== -1;
- var host = ipv6 ? "[" + obj.host + "]" : obj.host; // define unique id
+ _classCallCheck(this, Socket);
- obj.id = obj.protocol + "://" + host + ":" + obj.port + path; // define href
+ _this = _super.call(this);
- obj.href = obj.protocol + "://" + host + (loc && loc.port === obj.port ? "" : ":" + obj.port);
- return obj;
-}
+ if (uri && "object" === _typeof(uri)) {
+ opts = uri;
+ uri = null;
+ }
-exports.url = url;
+ if (uri) {
+ uri = parseuri(uri);
+ opts.hostname = uri.host;
+ opts.secure = uri.protocol === "https" || uri.protocol === "wss";
+ opts.port = uri.port;
+ if (uri.query) opts.query = uri.query;
+ } else if (opts.host) {
+ opts.hostname = parseuri(opts.host).host;
+ }
-/***/ }),
+ installTimerFunctions(_assertThisInitialized(_this), opts);
+ _this.secure = null != opts.secure ? opts.secure : typeof location !== "undefined" && "https:" === location.protocol;
-/***/ "./node_modules/backo2/index.js":
-/*!**************************************!*\
- !*** ./node_modules/backo2/index.js ***!
- \**************************************/
-/*! no static exports found */
-/***/ (function(module, exports) {
+ if (opts.hostname && !opts.port) {
+ // if no port is specified manually, use the protocol default
+ opts.port = _this.secure ? "443" : "80";
+ }
-/**
- * Expose `Backoff`.
- */
-module.exports = Backoff;
-/**
- * Initialize backoff timer with `opts`.
- *
- * - `min` initial timeout in milliseconds [100]
- * - `max` max timeout [10000]
- * - `jitter` [0]
- * - `factor` [2]
- *
- * @param {Object} opts
- * @api public
- */
+ _this.hostname = opts.hostname || (typeof location !== "undefined" ? location.hostname : "localhost");
+ _this.port = opts.port || (typeof location !== "undefined" && location.port ? location.port : _this.secure ? "443" : "80");
+ _this.transports = opts.transports || ["polling", "websocket"];
+ _this.readyState = "";
+ _this.writeBuffer = [];
+ _this.prevBufferLen = 0;
+ _this.opts = _extends({
+ path: "/engine.io",
+ agent: false,
+ withCredentials: false,
+ upgrade: true,
+ timestampParam: "t",
+ rememberUpgrade: false,
+ rejectUnauthorized: true,
+ perMessageDeflate: {
+ threshold: 1024
+ },
+ transportOptions: {},
+ closeOnBeforeunload: true
+ }, opts);
+ _this.opts.path = _this.opts.path.replace(/\/$/, "") + "/";
+
+ if (typeof _this.opts.query === "string") {
+ _this.opts.query = parseqs.decode(_this.opts.query);
+ } // set on handshake
+
+
+ _this.id = null;
+ _this.upgrades = null;
+ _this.pingInterval = null;
+ _this.pingTimeout = null; // set on heartbeat
+
+ _this.pingTimeoutTimer = null;
+
+ if (typeof addEventListener === "function") {
+ if (_this.opts.closeOnBeforeunload) {
+ // Firefox closes the connection when the "beforeunload" event is emitted but not Chrome. This event listener
+ // ensures every browser behaves the same (no "disconnect" event at the Socket.IO level when the page is
+ // closed/reloaded)
+ addEventListener("beforeunload", function () {
+ if (_this.transport) {
+ // silently close the transport
+ _this.transport.removeAllListeners();
+
+ _this.transport.close();
+ }
+ }, false);
+ }
-function Backoff(opts) {
- opts = opts || {};
- this.ms = opts.min || 100;
- this.max = opts.max || 10000;
- this.factor = opts.factor || 2;
- this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
- this.attempts = 0;
-}
-/**
- * Return the backoff duration.
- *
- * @return {Number}
- * @api public
- */
+ if (_this.hostname !== "localhost") {
+ _this.offlineEventListener = function () {
+ _this.onClose("transport close");
+ };
+ addEventListener("offline", _this.offlineEventListener, false);
+ }
+ }
-Backoff.prototype.duration = function () {
- var ms = this.ms * Math.pow(this.factor, this.attempts++);
+ _this.open();
- if (this.jitter) {
- var rand = Math.random();
- var deviation = Math.floor(rand * this.jitter * ms);
- ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;
- }
+ return _this;
+ }
+ /**
+ * Creates transport of the given type.
+ *
+ * @param {String} transport name
+ * @return {Transport}
+ * @api private
+ */
- return Math.min(ms, this.max) | 0;
-};
-/**
- * Reset the number of attempts.
- *
- * @api public
- */
+ _createClass(Socket, [{
+ key: "createTransport",
+ value: function createTransport(name) {
+ var query = clone(this.opts.query); // append engine.io protocol identifier
-Backoff.prototype.reset = function () {
- this.attempts = 0;
-};
-/**
- * Set the minimum duration
- *
- * @api public
- */
+ query.EIO = protocol$1; // transport name
+ query.transport = name; // session id if we already have one
-Backoff.prototype.setMin = function (min) {
- this.ms = min;
-};
-/**
- * Set the maximum duration
- *
- * @api public
- */
+ if (this.id) query.sid = this.id;
+ var opts = _extends({}, this.opts.transportOptions[name], this.opts, {
+ query: query,
+ socket: this,
+ hostname: this.hostname,
+ secure: this.secure,
+ port: this.port
+ });
-Backoff.prototype.setMax = function (max) {
- this.max = max;
-};
-/**
- * Set the jitter
- *
- * @api public
- */
+ return new transports[name](opts);
+ }
+ /**
+ * Initializes transport to use and starts probe.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "open",
+ value: function open() {
+ var _this2 = this;
+
+ var transport;
+
+ if (this.opts.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1) {
+ transport = "websocket";
+ } else if (0 === this.transports.length) {
+ // Emit error on next tick so it can be listened to
+ this.setTimeoutFn(function () {
+ _this2.emitReserved("error", "No transports available");
+ }, 0);
+ return;
+ } else {
+ transport = this.transports[0];
+ }
+ this.readyState = "opening"; // Retry with the next transport if the transport is disabled (jsonp: false)
-Backoff.prototype.setJitter = function (jitter) {
- this.jitter = jitter;
-};
+ try {
+ transport = this.createTransport(transport);
+ } catch (e) {
+ this.transports.shift();
+ this.open();
+ return;
+ }
-/***/ }),
+ transport.open();
+ this.setTransport(transport);
+ }
+ /**
+ * Sets the current transport. Disables the existing one (if any).
+ *
+ * @api private
+ */
-/***/ "./node_modules/component-emitter/index.js":
-/*!*************************************************!*\
- !*** ./node_modules/component-emitter/index.js ***!
- \*************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ }, {
+ key: "setTransport",
+ value: function setTransport(transport) {
+ var _this3 = this;
-/**
- * Expose `Emitter`.
- */
-if (true) {
- module.exports = Emitter;
-}
-/**
- * Initialize a new `Emitter`.
- *
- * @api public
- */
+ if (this.transport) {
+ this.transport.removeAllListeners();
+ } // set up transport
-function Emitter(obj) {
- if (obj) return mixin(obj);
-}
+ this.transport = transport; // set up transport listeners
-;
-/**
- * Mixin the emitter properties.
- *
- * @param {Object} obj
- * @return {Object}
- * @api private
- */
+ transport.on("drain", this.onDrain.bind(this)).on("packet", this.onPacket.bind(this)).on("error", this.onError.bind(this)).on("close", function () {
+ _this3.onClose("transport close");
+ });
+ }
+ /**
+ * Probes a transport.
+ *
+ * @param {String} transport name
+ * @api private
+ */
+
+ }, {
+ key: "probe",
+ value: function probe(name) {
+ var _this4 = this;
+
+ var transport = this.createTransport(name);
+ var failed = false;
+ Socket.priorWebsocketSuccess = false;
+
+ var onTransportOpen = function onTransportOpen() {
+ if (failed) return;
+ transport.send([{
+ type: "ping",
+ data: "probe"
+ }]);
+ transport.once("packet", function (msg) {
+ if (failed) return;
-function mixin(obj) {
- for (var key in Emitter.prototype) {
- obj[key] = Emitter.prototype[key];
- }
+ if ("pong" === msg.type && "probe" === msg.data) {
+ _this4.upgrading = true;
- return obj;
-}
-/**
- * Listen on the given `event` with `fn`.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
+ _this4.emitReserved("upgrading", transport);
+ if (!transport) return;
+ Socket.priorWebsocketSuccess = "websocket" === transport.name;
-Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
- this._callbacks = this._callbacks || {};
- (this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
- return this;
-};
-/**
- * Adds an `event` listener that will be invoked a single
- * time then automatically removed.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
+ _this4.transport.pause(function () {
+ if (failed) return;
+ if ("closed" === _this4.readyState) return;
+ cleanup();
+ _this4.setTransport(transport);
-Emitter.prototype.once = function (event, fn) {
- function on() {
- this.off(event, on);
- fn.apply(this, arguments);
- }
+ transport.send([{
+ type: "upgrade"
+ }]);
- on.fn = fn;
- this.on(event, on);
- return this;
-};
-/**
- * Remove the given callback for `event` or all
- * registered callbacks.
- *
- * @param {String} event
- * @param {Function} fn
- * @return {Emitter}
- * @api public
- */
+ _this4.emitReserved("upgrade", transport);
+ transport = null;
+ _this4.upgrading = false;
-Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
- this._callbacks = this._callbacks || {}; // all
+ _this4.flush();
+ });
+ } else {
+ var err = new Error("probe error"); // @ts-ignore
- if (0 == arguments.length) {
- this._callbacks = {};
- return this;
- } // specific event
+ err.transport = transport.name;
+ _this4.emitReserved("upgradeError", err);
+ }
+ });
+ };
- var callbacks = this._callbacks['$' + event];
- if (!callbacks) return this; // remove all handlers
+ function freezeTransport() {
+ if (failed) return; // Any callback called by transport should be ignored since now
- if (1 == arguments.length) {
- delete this._callbacks['$' + event];
- return this;
- } // remove specific handler
+ failed = true;
+ cleanup();
+ transport.close();
+ transport = null;
+ } // Handle any error that happens while probing
- var cb;
+ var onerror = function onerror(err) {
+ var error = new Error("probe error: " + err); // @ts-ignore
- for (var i = 0; i < callbacks.length; i++) {
- cb = callbacks[i];
+ error.transport = transport.name;
+ freezeTransport();
- if (cb === fn || cb.fn === fn) {
- callbacks.splice(i, 1);
- break;
- }
- } // Remove event specific arrays for event types that no
- // one is subscribed for to avoid memory leak.
+ _this4.emitReserved("upgradeError", error);
+ };
+ function onTransportClose() {
+ onerror("transport closed");
+ } // When the socket is closed while we're probing
- if (callbacks.length === 0) {
- delete this._callbacks['$' + event];
- }
- return this;
-};
-/**
- * Emit `event` with the given args.
- *
- * @param {String} event
- * @param {Mixed} ...
- * @return {Emitter}
- */
+ function onclose() {
+ onerror("socket closed");
+ } // When the socket is upgraded while we're probing
-Emitter.prototype.emit = function (event) {
- this._callbacks = this._callbacks || {};
- var args = new Array(arguments.length - 1),
- callbacks = this._callbacks['$' + event];
+ function onupgrade(to) {
+ if (transport && to.name !== transport.name) {
+ freezeTransport();
+ }
+ } // Remove all listeners on the transport and on self
- for (var i = 1; i < arguments.length; i++) {
- args[i - 1] = arguments[i];
- }
- if (callbacks) {
- callbacks = callbacks.slice(0);
+ var cleanup = function cleanup() {
+ transport.removeListener("open", onTransportOpen);
+ transport.removeListener("error", onerror);
+ transport.removeListener("close", onTransportClose);
- for (var i = 0, len = callbacks.length; i < len; ++i) {
- callbacks[i].apply(this, args);
- }
- }
-
- return this;
-};
-/**
- * Return array of callbacks for `event`.
- *
- * @param {String} event
- * @return {Array}
- * @api public
- */
+ _this4.off("close", onclose);
+ _this4.off("upgrading", onupgrade);
+ };
-Emitter.prototype.listeners = function (event) {
- this._callbacks = this._callbacks || {};
- return this._callbacks['$' + event] || [];
-};
-/**
- * Check if this emitter has `event` handlers.
- *
- * @param {String} event
- * @return {Boolean}
- * @api public
- */
-
+ transport.once("open", onTransportOpen);
+ transport.once("error", onerror);
+ transport.once("close", onTransportClose);
+ this.once("close", onclose);
+ this.once("upgrading", onupgrade);
+ transport.open();
+ }
+ /**
+ * Called when connection is deemed open.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onOpen",
+ value: function onOpen() {
+ this.readyState = "open";
+ Socket.priorWebsocketSuccess = "websocket" === this.transport.name;
+ this.emitReserved("open");
+ this.flush(); // we check for `readyState` in case an `open`
+ // listener already closed the socket
+
+ if ("open" === this.readyState && this.opts.upgrade && this.transport.pause) {
+ var i = 0;
+ var l = this.upgrades.length;
+
+ for (; i < l; i++) {
+ this.probe(this.upgrades[i]);
+ }
+ }
+ }
+ /**
+ * Handles a packet.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onPacket",
+ value: function onPacket(packet) {
+ if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
+ this.emitReserved("packet", packet); // Socket is live - any packet counts
+
+ this.emitReserved("heartbeat");
+
+ switch (packet.type) {
+ case "open":
+ this.onHandshake(JSON.parse(packet.data));
+ break;
+
+ case "ping":
+ this.resetPingTimeout();
+ this.sendPacket("pong");
+ this.emitReserved("ping");
+ this.emitReserved("pong");
+ break;
+
+ case "error":
+ var err = new Error("server error"); // @ts-ignore
+
+ err.code = packet.data;
+ this.onError(err);
+ break;
+
+ case "message":
+ this.emitReserved("data", packet.data);
+ this.emitReserved("message", packet.data);
+ break;
+ }
+ }
+ }
+ /**
+ * Called upon handshake completion.
+ *
+ * @param {Object} data - handshake obj
+ * @api private
+ */
+
+ }, {
+ key: "onHandshake",
+ value: function onHandshake(data) {
+ this.emitReserved("handshake", data);
+ this.id = data.sid;
+ this.transport.query.sid = data.sid;
+ this.upgrades = this.filterUpgrades(data.upgrades);
+ this.pingInterval = data.pingInterval;
+ this.pingTimeout = data.pingTimeout;
+ this.onOpen(); // In case open handler closes socket
+
+ if ("closed" === this.readyState) return;
+ this.resetPingTimeout();
+ }
+ /**
+ * Sets and resets ping timeout timer based on server pings.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "resetPingTimeout",
+ value: function resetPingTimeout() {
+ var _this5 = this;
+
+ this.clearTimeoutFn(this.pingTimeoutTimer);
+ this.pingTimeoutTimer = this.setTimeoutFn(function () {
+ _this5.onClose("ping timeout");
+ }, this.pingInterval + this.pingTimeout);
-Emitter.prototype.hasListeners = function (event) {
- return !!this.listeners(event).length;
-};
+ if (this.opts.autoUnref) {
+ this.pingTimeoutTimer.unref();
+ }
+ }
+ /**
+ * Called on `drain` event
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onDrain",
+ value: function onDrain() {
+ this.writeBuffer.splice(0, this.prevBufferLen); // setting prevBufferLen = 0 is very important
+ // for example, when upgrading, upgrade packet is sent over,
+ // and a nonzero prevBufferLen could cause problems on `drain`
-/***/ }),
+ this.prevBufferLen = 0;
-/***/ "./node_modules/debug/src/browser.js":
-/*!*******************************************!*\
- !*** ./node_modules/debug/src/browser.js ***!
- \*******************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ if (0 === this.writeBuffer.length) {
+ this.emitReserved("drain");
+ } else {
+ this.flush();
+ }
+ }
+ /**
+ * Flush write buffers.
+ *
+ * @api private
+ */
+
+ }, {
+ key: "flush",
+ value: function flush() {
+ if ("closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
+ this.transport.send(this.writeBuffer); // keep track of current length of writeBuffer
+ // splice writeBuffer and callbackBuffer on `drain`
+
+ this.prevBufferLen = this.writeBuffer.length;
+ this.emitReserved("flush");
+ }
+ }
+ /**
+ * Sends a message.
+ *
+ * @param {String} message.
+ * @param {Function} callback function.
+ * @param {Object} options.
+ * @return {Socket} for chaining.
+ * @api public
+ */
+
+ }, {
+ key: "write",
+ value: function write(msg, options, fn) {
+ this.sendPacket("message", msg, options, fn);
+ return this;
+ }
+ }, {
+ key: "send",
+ value: function send(msg, options, fn) {
+ this.sendPacket("message", msg, options, fn);
+ return this;
+ }
+ /**
+ * Sends a packet.
+ *
+ * @param {String} packet type.
+ * @param {String} data.
+ * @param {Object} options.
+ * @param {Function} callback function.
+ * @api private
+ */
+
+ }, {
+ key: "sendPacket",
+ value: function sendPacket(type, data, options, fn) {
+ if ("function" === typeof data) {
+ fn = data;
+ data = undefined;
+ }
-/* eslint-env browser */
+ if ("function" === typeof options) {
+ fn = options;
+ options = null;
+ }
-/**
- * This is the web browser implementation of `debug()`.
- */
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-exports.storage = localstorage();
-
-exports.destroy = function () {
- var warned = false;
- return function () {
- if (!warned) {
- warned = true;
- console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
- }
- };
-}();
-/**
- * Colors.
- */
+ if ("closing" === this.readyState || "closed" === this.readyState) {
+ return;
+ }
+ options = options || {};
+ options.compress = false !== options.compress;
+ var packet = {
+ type: type,
+ data: data,
+ options: options
+ };
+ this.emitReserved("packetCreate", packet);
+ this.writeBuffer.push(packet);
+ if (fn) this.once("flush", fn);
+ this.flush();
+ }
+ /**
+ * Closes the connection.
+ *
+ * @api public
+ */
-exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
-/**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
-// eslint-disable-next-line complexity
+ }, {
+ key: "close",
+ value: function close() {
+ var _this6 = this;
-function useColors() {
- // NB: In an Electron preload script, document will be defined but not fully
- // initialized. Since we know we're in Chrome, we'll just detect this case
- // explicitly
- if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
- return true;
- } // Internet Explorer and Edge do not support colors.
+ var close = function close() {
+ _this6.onClose("forced close");
+ _this6.transport.close();
+ };
- if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
- return false;
- } // Is webkit? http://stackoverflow.com/a/16459606/376773
- // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+ var cleanupAndClose = function cleanupAndClose() {
+ _this6.off("upgrade", cleanupAndClose);
+ _this6.off("upgradeError", cleanupAndClose);
- return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
-}
-/**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
+ close();
+ };
+ var waitForUpgrade = function waitForUpgrade() {
+ // wait for upgrade to finish since we can't send packets while pausing a transport
+ _this6.once("upgrade", cleanupAndClose);
-function formatArgs(args) {
- args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
+ _this6.once("upgradeError", cleanupAndClose);
+ };
- if (!this.useColors) {
- return;
- }
+ if ("opening" === this.readyState || "open" === this.readyState) {
+ this.readyState = "closing";
- var c = 'color: ' + this.color;
- args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
- // arguments passed either before or after the %c, so we need to
- // figure out the correct index to insert the CSS into
+ if (this.writeBuffer.length) {
+ this.once("drain", function () {
+ if (_this6.upgrading) {
+ waitForUpgrade();
+ } else {
+ close();
+ }
+ });
+ } else if (this.upgrading) {
+ waitForUpgrade();
+ } else {
+ close();
+ }
+ }
- var index = 0;
- var lastC = 0;
- args[0].replace(/%[a-zA-Z%]/g, function (match) {
- if (match === '%%') {
- return;
- }
+ return this;
+ }
+ /**
+ * Called upon transport error
+ *
+ * @api private
+ */
+
+ }, {
+ key: "onError",
+ value: function onError(err) {
+ Socket.priorWebsocketSuccess = false;
+ this.emitReserved("error", err);
+ this.onClose("transport error", err);
+ }
+ /**
+ * Called upon transport close.
+ *
+ * @api private
+ */
- index++;
+ }, {
+ key: "onClose",
+ value: function onClose(reason, desc) {
+ if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
+ // clear timers
+ this.clearTimeoutFn(this.pingTimeoutTimer); // stop event from firing again for transport
- if (match === '%c') {
- // We only are interested in the *last* %c
- // (the user may have provided their own)
- lastC = index;
- }
- });
- args.splice(lastC, 0, c);
-}
-/**
- * Invokes `console.debug()` when available.
- * No-op when `console.debug` is not a "function".
- * If `console.debug` is not available, falls back
- * to `console.log`.
- *
- * @api public
- */
+ this.transport.removeAllListeners("close"); // ensure transport won't stay open
+ this.transport.close(); // ignore further transport communication
-exports.log = console.debug || console.log || function () {};
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
+ this.transport.removeAllListeners();
+ if (typeof removeEventListener === "function") {
+ removeEventListener("offline", this.offlineEventListener, false);
+ } // set ready state
-function save(namespaces) {
- try {
- if (namespaces) {
- exports.storage.setItem('debug', namespaces);
- } else {
- exports.storage.removeItem('debug');
- }
- } catch (error) {// Swallow
- // XXX (@Qix-) should we be logging these?
- }
-}
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
+ this.readyState = "closed"; // clear session id
-function load() {
- var r;
+ this.id = null; // emit close event
- try {
- r = exports.storage.getItem('debug');
- } catch (error) {// Swallow
- // XXX (@Qix-) should we be logging these?
- } // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+ this.emitReserved("close", reason, desc); // clean buffers after, so users can still
+ // grab the buffers on `close` event
+ this.writeBuffer = [];
+ this.prevBufferLen = 0;
+ }
+ }
+ /**
+ * Filters upgrades, returning only those matching client transports.
+ *
+ * @param {Array} server upgrades
+ * @api private
+ *
+ */
+
+ }, {
+ key: "filterUpgrades",
+ value: function filterUpgrades(upgrades) {
+ var filteredUpgrades = [];
+ var i = 0;
+ var j = upgrades.length;
- if (!r && typeof process !== 'undefined' && 'env' in process) {
- r = process.env.DEBUG;
- }
+ for (; i < j; i++) {
+ if (~this.transports.indexOf(upgrades[i])) filteredUpgrades.push(upgrades[i]);
+ }
- return r;
-}
-/**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
+ return filteredUpgrades;
+ }
+ }]);
+ return Socket;
+ }(Emitter_1);
+ Socket$1.protocol = protocol$1;
-function localstorage() {
- try {
- // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
- // The Browser also has localStorage in the global context.
- return localStorage;
- } catch (error) {// Swallow
- // XXX (@Qix-) should we be logging these?
- }
-}
+ function clone(obj) {
+ var o = {};
-module.exports = __webpack_require__(/*! ./common */ "./node_modules/debug/src/common.js")(exports);
-var formatters = module.exports.formatters;
-/**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) {
+ o[i] = obj[i];
+ }
+ }
-formatters.j = function (v) {
- try {
- return JSON.stringify(v);
- } catch (error) {
- return '[UnexpectedJSONParseError]: ' + error.message;
+ return o;
}
-};
-
-/***/ }),
-/***/ "./node_modules/debug/src/common.js":
-/*!******************************************!*\
- !*** ./node_modules/debug/src/common.js ***!
- \******************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ var withNativeArrayBuffer = typeof ArrayBuffer === "function";
-function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
-
-function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
+ var isView = function isView(obj) {
+ return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj.buffer instanceof ArrayBuffer;
+ };
-function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
+ var toString = Object.prototype.toString;
+ var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && toString.call(Blob) === "[object BlobConstructor]";
+ var withNativeFile = typeof File === "function" || typeof File !== "undefined" && toString.call(File) === "[object FileConstructor]";
+ /**
+ * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.
+ *
+ * @private
+ */
-function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }
+ function isBinary(obj) {
+ return withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)) || withNativeBlob && obj instanceof Blob || withNativeFile && obj instanceof File;
+ }
+ function hasBinary(obj, toJSON) {
+ if (!obj || _typeof(obj) !== "object") {
+ return false;
+ }
-function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
+ if (Array.isArray(obj)) {
+ for (var i = 0, l = obj.length; i < l; i++) {
+ if (hasBinary(obj[i])) {
+ return true;
+ }
+ }
-function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
+ return false;
+ }
-/**
- * This is the common logic for both the Node.js and web browser
- * implementations of `debug()`.
- */
-function setup(env) {
- createDebug.debug = createDebug;
- createDebug["default"] = createDebug;
- createDebug.coerce = coerce;
- createDebug.disable = disable;
- createDebug.enable = enable;
- createDebug.enabled = enabled;
- createDebug.humanize = __webpack_require__(/*! ms */ "./node_modules/ms/index.js");
- createDebug.destroy = destroy;
- Object.keys(env).forEach(function (key) {
- createDebug[key] = env[key];
- });
- /**
- * The currently active debug mode names, and names to skip.
- */
+ if (isBinary(obj)) {
+ return true;
+ }
- createDebug.names = [];
- createDebug.skips = [];
- /**
- * Map of special "%n" handling functions, for the debug "format" argument.
- *
- * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
- */
+ if (obj.toJSON && typeof obj.toJSON === "function" && arguments.length === 1) {
+ return hasBinary(obj.toJSON(), true);
+ }
- createDebug.formatters = {};
- /**
- * Selects a color for a debug namespace
- * @param {String} namespace The namespace string for the for the debug instance to be colored
- * @return {Number|String} An ANSI color code for the given namespace
- * @api private
- */
-
- function selectColor(namespace) {
- var hash = 0;
-
- for (var i = 0; i < namespace.length; i++) {
- hash = (hash << 5) - hash + namespace.charCodeAt(i);
- hash |= 0; // Convert to 32bit integer
+ for (var key in obj) {
+ if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
+ return true;
+ }
}
- return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+ return false;
}
- createDebug.selectColor = selectColor;
/**
- * Create a debugger with the given `namespace`.
- *
- * @param {String} namespace
- * @return {Function}
- * @api public
- */
-
- function createDebug(namespace) {
- var prevTime;
- var enableOverride = null;
- var namespacesCache;
- var enabledCache;
-
- function debug() {
- for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
- args[_key] = arguments[_key];
- }
-
- // Disabled?
- if (!debug.enabled) {
- return;
- }
-
- var self = debug; // Set `diff` timestamp
-
- var curr = Number(new Date());
- var ms = curr - (prevTime || curr);
- self.diff = ms;
- self.prev = prevTime;
- self.curr = curr;
- prevTime = curr;
- args[0] = createDebug.coerce(args[0]);
-
- if (typeof args[0] !== 'string') {
- // Anything else let's inspect with %O
- args.unshift('%O');
- } // Apply any `formatters` transformations
-
-
- var index = 0;
- args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
- // If we encounter an escaped % then don't increase the array index
- if (match === '%%') {
- return '%';
- }
-
- index++;
- var formatter = createDebug.formatters[format];
+ * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.
+ *
+ * @param {Object} packet - socket.io event packet
+ * @return {Object} with deconstructed packet and list of buffers
+ * @public
+ */
- if (typeof formatter === 'function') {
- var val = args[index];
- match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`
+ function deconstructPacket(packet) {
+ var buffers = [];
+ var packetData = packet.data;
+ var pack = packet;
+ pack.data = _deconstructPacket(packetData, buffers);
+ pack.attachments = buffers.length; // number of binary 'attachments'
- args.splice(index, 1);
- index--;
- }
+ return {
+ packet: pack,
+ buffers: buffers
+ };
+ }
- return match;
- }); // Apply env-specific formatting (colors, etc.)
+ function _deconstructPacket(data, buffers) {
+ if (!data) return data;
- createDebug.formatArgs.call(self, args);
- var logFn = self.log || createDebug.log;
- logFn.apply(self, args);
- }
+ if (isBinary(data)) {
+ var placeholder = {
+ _placeholder: true,
+ num: buffers.length
+ };
+ buffers.push(data);
+ return placeholder;
+ } else if (Array.isArray(data)) {
+ var newData = new Array(data.length);
- debug.namespace = namespace;
- debug.useColors = createDebug.useColors();
- debug.color = createDebug.selectColor(namespace);
- debug.extend = extend;
- debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+ for (var i = 0; i < data.length; i++) {
+ newData[i] = _deconstructPacket(data[i], buffers);
+ }
- Object.defineProperty(debug, 'enabled', {
- enumerable: true,
- configurable: false,
- get: function get() {
- if (enableOverride !== null) {
- return enableOverride;
- }
+ return newData;
+ } else if (_typeof(data) === "object" && !(data instanceof Date)) {
+ var _newData = {};
- if (namespacesCache !== createDebug.namespaces) {
- namespacesCache = createDebug.namespaces;
- enabledCache = createDebug.enabled(namespace);
+ for (var key in data) {
+ if (data.hasOwnProperty(key)) {
+ _newData[key] = _deconstructPacket(data[key], buffers);
}
-
- return enabledCache;
- },
- set: function set(v) {
- enableOverride = v;
}
- }); // Env-specific initialization logic for debug instances
- if (typeof createDebug.init === 'function') {
- createDebug.init(debug);
+ return _newData;
}
- return debug;
- }
-
- function extend(namespace, delimiter) {
- var newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
- newDebug.log = this.log;
- return newDebug;
+ return data;
}
/**
- * Enables a debug mode by namespaces. This can include modes
- * separated by a colon and wildcards.
- *
- * @param {String} namespaces
- * @api public
- */
+ * Reconstructs a binary packet from its placeholder packet and buffers
+ *
+ * @param {Object} packet - event packet with placeholders
+ * @param {Array} buffers - binary buffers to put in placeholder positions
+ * @return {Object} reconstructed packet
+ * @public
+ */
- function enable(namespaces) {
- createDebug.save(namespaces);
- createDebug.namespaces = namespaces;
- createDebug.names = [];
- createDebug.skips = [];
- var i;
- var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
- var len = split.length;
+ function reconstructPacket(packet, buffers) {
+ packet.data = _reconstructPacket(packet.data, buffers);
+ packet.attachments = undefined; // no longer useful
- for (i = 0; i < len; i++) {
- if (!split[i]) {
- // ignore empty strings
- continue;
- }
+ return packet;
+ }
- namespaces = split[i].replace(/\*/g, '.*?');
+ function _reconstructPacket(data, buffers) {
+ if (!data) return data;
- if (namespaces[0] === '-') {
- createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
- } else {
- createDebug.names.push(new RegExp('^' + namespaces + '$'));
+ if (data && data._placeholder) {
+ return buffers[data.num]; // appropriate buffer (should be natural order anyway)
+ } else if (Array.isArray(data)) {
+ for (var i = 0; i < data.length; i++) {
+ data[i] = _reconstructPacket(data[i], buffers);
+ }
+ } else if (_typeof(data) === "object") {
+ for (var key in data) {
+ if (data.hasOwnProperty(key)) {
+ data[key] = _reconstructPacket(data[key], buffers);
+ }
}
}
+
+ return data;
}
+
/**
- * Disable debug output.
- *
- * @return {String} namespaces
- * @api public
- */
-
-
- function disable() {
- var namespaces = [].concat(_toConsumableArray(createDebug.names.map(toNamespace)), _toConsumableArray(createDebug.skips.map(toNamespace).map(function (namespace) {
- return '-' + namespace;
- }))).join(',');
- createDebug.enable('');
- return namespaces;
- }
- /**
- * Returns true if the given mode name is enabled, false otherwise.
- *
- * @param {String} name
- * @return {Boolean}
- * @api public
- */
+ * Protocol version.
+ *
+ * @public
+ */
+ var protocol = 5;
+ var PacketType;
+
+ (function (PacketType) {
+ PacketType[PacketType["CONNECT"] = 0] = "CONNECT";
+ PacketType[PacketType["DISCONNECT"] = 1] = "DISCONNECT";
+ PacketType[PacketType["EVENT"] = 2] = "EVENT";
+ PacketType[PacketType["ACK"] = 3] = "ACK";
+ PacketType[PacketType["CONNECT_ERROR"] = 4] = "CONNECT_ERROR";
+ PacketType[PacketType["BINARY_EVENT"] = 5] = "BINARY_EVENT";
+ PacketType[PacketType["BINARY_ACK"] = 6] = "BINARY_ACK";
+ })(PacketType || (PacketType = {}));
+ /**
+ * A socket.io Encoder instance
+ */
- function enabled(name) {
- if (name[name.length - 1] === '*') {
- return true;
- }
- var i;
- var len;
+ var Encoder = /*#__PURE__*/function () {
+ function Encoder() {
+ _classCallCheck(this, Encoder);
+ }
+
+ _createClass(Encoder, [{
+ key: "encode",
+ value:
+ /**
+ * Encode a packet as a single string if non-binary, or as a
+ * buffer sequence, depending on packet type.
+ *
+ * @param {Object} obj - packet object
+ */
+ function encode(obj) {
+ if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {
+ if (hasBinary(obj)) {
+ obj.type = obj.type === PacketType.EVENT ? PacketType.BINARY_EVENT : PacketType.BINARY_ACK;
+ return this.encodeAsBinary(obj);
+ }
+ }
- for (i = 0, len = createDebug.skips.length; i < len; i++) {
- if (createDebug.skips[i].test(name)) {
- return false;
+ return [this.encodeAsString(obj)];
}
- }
+ /**
+ * Encode packet as string.
+ */
- for (i = 0, len = createDebug.names.length; i < len; i++) {
- if (createDebug.names[i].test(name)) {
- return true;
- }
- }
+ }, {
+ key: "encodeAsString",
+ value: function encodeAsString(obj) {
+ // first is type
+ var str = "" + obj.type; // attachments if we have them
- return false;
- }
- /**
- * Convert regexp to namespace
- *
- * @param {RegExp} regxep
- * @return {String} namespace
- * @api private
- */
+ if (obj.type === PacketType.BINARY_EVENT || obj.type === PacketType.BINARY_ACK) {
+ str += obj.attachments + "-";
+ } // if we have a namespace other than `/`
+ // we append it followed by a comma `,`
- function toNamespace(regexp) {
- return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
- }
- /**
- * Coerce `val`.
- *
- * @param {Mixed} val
- * @return {Mixed}
- * @api private
- */
+ if (obj.nsp && "/" !== obj.nsp) {
+ str += obj.nsp + ",";
+ } // immediately followed by the id
- function coerce(val) {
- if (val instanceof Error) {
- return val.stack || val.message;
- }
+ if (null != obj.id) {
+ str += obj.id;
+ } // json data
- return val;
- }
- /**
- * XXX DO NOT USE. This is a temporary stub function.
- * XXX It WILL be removed in the next major release.
- */
+ if (null != obj.data) {
+ str += JSON.stringify(obj.data);
+ }
- function destroy() {
- console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
- }
+ return str;
+ }
+ /**
+ * Encode packet as 'buffer sequence' by removing blobs, and
+ * deconstructing packet into object with placeholders and
+ * a list of buffers.
+ */
+
+ }, {
+ key: "encodeAsBinary",
+ value: function encodeAsBinary(obj) {
+ var deconstruction = deconstructPacket(obj);
+ var pack = this.encodeAsString(deconstruction.packet);
+ var buffers = deconstruction.buffers;
+ buffers.unshift(pack); // add packet info to beginning of data list
+
+ return buffers; // write all the buffers
+ }
+ }]);
- createDebug.enable(createDebug.load());
- return createDebug;
-}
+ return Encoder;
+ }();
+ /**
+ * A socket.io Decoder instance
+ *
+ * @return {Object} decoder
+ */
-module.exports = setup;
+ var Decoder = /*#__PURE__*/function (_Emitter) {
+ _inherits(Decoder, _Emitter);
-/***/ }),
+ var _super = _createSuper(Decoder);
-/***/ "./node_modules/engine.io-client/lib/globalThis.browser.js":
-/*!*****************************************************************!*\
- !*** ./node_modules/engine.io-client/lib/globalThis.browser.js ***!
- \*****************************************************************/
-/*! no static exports found */
-/***/ (function(module, exports) {
+ function Decoder() {
+ _classCallCheck(this, Decoder);
-module.exports = function () {
- if (typeof self !== "undefined") {
- return self;
- } else if (typeof window !== "undefined") {
- return window;
- } else {
- return Function("return this")();
- }
-}();
+ return _super.call(this);
+ }
+ /**
+ * Decodes an encoded packet string into packet JSON.
+ *
+ * @param {String} obj - encoded packet
+ */
-/***/ }),
-/***/ "./node_modules/engine.io-client/lib/index.js":
-/*!****************************************************!*\
- !*** ./node_modules/engine.io-client/lib/index.js ***!
- \****************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
+ _createClass(Decoder, [{
+ key: "add",
+ value: function add(obj) {
+ var packet;
-var Socket = __webpack_require__(/*! ./socket */ "./node_modules/engine.io-client/lib/socket.js");
+ if (typeof obj === "string") {
+ packet = this.decodeString(obj);
-module.exports = function (uri, opts) {
- return new Socket(uri, opts);
-};
-/**
- * Expose deps for legacy compatibility
- * and standalone browser access.
- */
+ if (packet.type === PacketType.BINARY_EVENT || packet.type === PacketType.BINARY_ACK) {
+ // binary packet's json
+ this.reconstructor = new BinaryReconstructor(packet); // no attachments, labeled binary but no binary data to follow
+ if (packet.attachments === 0) {
+ _get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
+ }
+ } else {
+ // non-binary full packet
+ _get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
+ }
+ } else if (isBinary(obj) || obj.base64) {
+ // raw binary data
+ if (!this.reconstructor) {
+ throw new Error("got binary data when not reconstructing a packet");
+ } else {
+ packet = this.reconstructor.takeBinaryData(obj);
-module.exports.Socket = Socket;
-module.exports.protocol = Socket.protocol; // this is an int
+ if (packet) {
+ // received final buffer
+ this.reconstructor = null;
-module.exports.Transport = __webpack_require__(/*! ./transport */ "./node_modules/engine.io-client/lib/transport.js");
-module.exports.transports = __webpack_require__(/*! ./transports/index */ "./node_modules/engine.io-client/lib/transports/index.js");
-module.exports.parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
+ _get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
+ }
+ }
+ } else {
+ throw new Error("Unknown type: " + obj);
+ }
+ }
+ /**
+ * Decode a packet String (JSON data)
+ *
+ * @param {String} str
+ * @return {Object} packet
+ */
+
+ }, {
+ key: "decodeString",
+ value: function decodeString(str) {
+ var i = 0; // look up type
+
+ var p = {
+ type: Number(str.charAt(0))
+ };
-/***/ }),
+ if (PacketType[p.type] === undefined) {
+ throw new Error("unknown packet type " + p.type);
+ } // look up attachments if type binary
-/***/ "./node_modules/engine.io-client/lib/socket.js":
-/*!*****************************************************!*\
- !*** ./node_modules/engine.io-client/lib/socket.js ***!
- \*****************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
+ if (p.type === PacketType.BINARY_EVENT || p.type === PacketType.BINARY_ACK) {
+ var start = i + 1;
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+ while (str.charAt(++i) !== "-" && i != str.length) {}
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+ var buf = str.substring(start, i);
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+ if (buf != Number(buf) || str.charAt(i) !== "-") {
+ throw new Error("Illegal attachments");
+ }
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+ p.attachments = Number(buf);
+ } // look up namespace (if any)
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+ if ("/" === str.charAt(i + 1)) {
+ var _start = i + 1;
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
+ while (++i) {
+ var c = str.charAt(i);
+ if ("," === c) break;
+ if (i === str.length) break;
+ }
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+ p.nsp = str.substring(_start, i);
+ } else {
+ p.nsp = "/";
+ } // look up id
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
+ var next = str.charAt(i + 1);
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+ if ("" !== next && Number(next) == next) {
+ var _start2 = i + 1;
-var transports = __webpack_require__(/*! ./transports/index */ "./node_modules/engine.io-client/lib/transports/index.js");
+ while (++i) {
+ var _c = str.charAt(i);
-var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
+ if (null == _c || Number(_c) != _c) {
+ --i;
+ break;
+ }
-var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("engine.io-client:socket");
+ if (i === str.length) break;
+ }
-var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
+ p.id = Number(str.substring(_start2, i + 1));
+ } // look up json data
-var parseuri = __webpack_require__(/*! parseuri */ "./node_modules/parseuri/index.js");
-var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");
+ if (str.charAt(++i)) {
+ var payload = tryParse(str.substr(i));
-var _require = __webpack_require__(/*! ./util */ "./node_modules/engine.io-client/lib/util.js"),
- installTimerFunctions = _require.installTimerFunctions;
+ if (Decoder.isPayloadValid(p.type, payload)) {
+ p.data = payload;
+ } else {
+ throw new Error("invalid payload");
+ }
+ }
-var Socket = /*#__PURE__*/function (_Emitter) {
- _inherits(Socket, _Emitter);
+ return p;
+ }
+ }, {
+ key: "destroy",
+ value:
+ /**
+ * Deallocates a parser's resources
+ */
+ function destroy() {
+ if (this.reconstructor) {
+ this.reconstructor.finishedReconstruction();
+ }
+ }
+ }], [{
+ key: "isPayloadValid",
+ value: function isPayloadValid(type, payload) {
+ switch (type) {
+ case PacketType.CONNECT:
+ return _typeof(payload) === "object";
+
+ case PacketType.DISCONNECT:
+ return payload === undefined;
+
+ case PacketType.CONNECT_ERROR:
+ return typeof payload === "string" || _typeof(payload) === "object";
+
+ case PacketType.EVENT:
+ case PacketType.BINARY_EVENT:
+ return Array.isArray(payload) && payload.length > 0;
+
+ case PacketType.ACK:
+ case PacketType.BINARY_ACK:
+ return Array.isArray(payload);
+ }
+ }
+ }]);
- var _super = _createSuper(Socket);
+ return Decoder;
+ }(Emitter_1);
+ function tryParse(str) {
+ try {
+ return JSON.parse(str);
+ } catch (e) {
+ return false;
+ }
+ }
/**
- * Socket constructor.
+ * A manager of a binary event's 'buffer sequence'. Should
+ * be constructed whenever a packet of type BINARY_EVENT is
+ * decoded.
*
- * @param {String|Object} uri or options
- * @param {Object} options
- * @api public
+ * @param {Object} packet
+ * @return {BinaryReconstructor} initialized reconstructor
*/
- function Socket(uri) {
- var _this;
-
- var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
- _classCallCheck(this, Socket);
- _this = _super.call(this);
+ var BinaryReconstructor = /*#__PURE__*/function () {
+ function BinaryReconstructor(packet) {
+ _classCallCheck(this, BinaryReconstructor);
- if (uri && "object" === _typeof(uri)) {
- opts = uri;
- uri = null;
+ this.packet = packet;
+ this.buffers = [];
+ this.reconPack = packet;
}
+ /**
+ * Method to be called when binary data received from connection
+ * after a BINARY_EVENT packet.
+ *
+ * @param {Buffer | ArrayBuffer} binData - the raw binary data received
+ * @return {null | Object} returns null if more binary data is expected or
+ * a reconstructed packet object if all buffers have been received.
+ */
- if (uri) {
- uri = parseuri(uri);
- opts.hostname = uri.host;
- opts.secure = uri.protocol === "https" || uri.protocol === "wss";
- opts.port = uri.port;
- if (uri.query) opts.query = uri.query;
- } else if (opts.host) {
- opts.hostname = parseuri(opts.host).host;
- }
- installTimerFunctions(_assertThisInitialized(_this), opts);
- _this.secure = null != opts.secure ? opts.secure : typeof location !== "undefined" && "https:" === location.protocol;
+ _createClass(BinaryReconstructor, [{
+ key: "takeBinaryData",
+ value: function takeBinaryData(binData) {
+ this.buffers.push(binData);
- if (opts.hostname && !opts.port) {
- // if no port is specified manually, use the protocol default
- opts.port = _this.secure ? "443" : "80";
- }
+ if (this.buffers.length === this.reconPack.attachments) {
+ // done with buffer list
+ var packet = reconstructPacket(this.reconPack, this.buffers);
+ this.finishedReconstruction();
+ return packet;
+ }
- _this.hostname = opts.hostname || (typeof location !== "undefined" ? location.hostname : "localhost");
- _this.port = opts.port || (typeof location !== "undefined" && location.port ? location.port : _this.secure ? 443 : 80);
- _this.transports = opts.transports || ["polling", "websocket"];
- _this.readyState = "";
- _this.writeBuffer = [];
- _this.prevBufferLen = 0;
- _this.opts = _extends({
- path: "/engine.io",
- agent: false,
- withCredentials: false,
- upgrade: true,
- jsonp: true,
- timestampParam: "t",
- rememberUpgrade: false,
- rejectUnauthorized: true,
- perMessageDeflate: {
- threshold: 1024
- },
- transportOptions: {},
- closeOnBeforeunload: true
- }, opts);
- _this.opts.path = _this.opts.path.replace(/\/$/, "") + "/";
-
- if (typeof _this.opts.query === "string") {
- _this.opts.query = parseqs.decode(_this.opts.query);
- } // set on handshake
-
-
- _this.id = null;
- _this.upgrades = null;
- _this.pingInterval = null;
- _this.pingTimeout = null; // set on heartbeat
-
- _this.pingTimeoutTimer = null;
-
- if (typeof addEventListener === "function") {
- if (_this.opts.closeOnBeforeunload) {
- // Firefox closes the connection when the "beforeunload" event is emitted but not Chrome. This event listener
- // ensures every browser behaves the same (no "disconnect" event at the Socket.IO level when the page is
- // closed/reloaded)
- addEventListener("beforeunload", function () {
- if (_this.transport) {
- // silently close the transport
- _this.transport.removeAllListeners();
-
- _this.transport.close();
- }
- }, false);
+ return null;
}
-
- if (_this.hostname !== "localhost") {
- _this.offlineEventListener = function () {
- _this.onClose("transport close");
- };
-
- addEventListener("offline", _this.offlineEventListener, false);
+ /**
+ * Cleans up binary packet reconstruction variables.
+ */
+
+ }, {
+ key: "finishedReconstruction",
+ value: function finishedReconstruction() {
+ this.reconPack = null;
+ this.buffers = [];
}
- }
+ }]);
- _this.open();
+ return BinaryReconstructor;
+ }();
- return _this;
+ var parser = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ protocol: protocol,
+ get PacketType () { return PacketType; },
+ Encoder: Encoder,
+ Decoder: Decoder
+ });
+
+ function on(obj, ev, fn) {
+ obj.on(ev, fn);
+ return function subDestroy() {
+ obj.off(ev, fn);
+ };
}
+
/**
- * Creates transport of the given type.
- *
- * @param {String} transport name
- * @return {Transport}
- * @api private
+ * Internal events.
+ * These events can't be emitted by the user.
*/
+ var RESERVED_EVENTS = Object.freeze({
+ connect: 1,
+ connect_error: 1,
+ disconnect: 1,
+ disconnecting: 1,
+ // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
+ newListener: 1,
+ removeListener: 1
+ });
+ var Socket = /*#__PURE__*/function (_Emitter) {
+ _inherits(Socket, _Emitter);
- _createClass(Socket, [{
- key: "createTransport",
- value: function createTransport(name) {
- debug('creating transport "%s"', name);
- var query = clone(this.opts.query); // append engine.io protocol identifier
-
- query.EIO = parser.protocol; // transport name
-
- query.transport = name; // session id if we already have one
-
- if (this.id) query.sid = this.id;
-
- var opts = _extends({}, this.opts.transportOptions[name], this.opts, {
- query: query,
- socket: this,
- hostname: this.hostname,
- secure: this.secure,
- port: this.port
- });
+ var _super = _createSuper(Socket);
- debug("options: %j", opts);
- return new transports[name](opts);
- }
/**
- * Initializes transport to use and starts probe.
+ * `Socket` constructor.
*
- * @api private
+ * @public
*/
-
- }, {
- key: "open",
- value: function open() {
- var _this2 = this;
-
- var transport;
-
- if (this.opts.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1) {
- transport = "websocket";
- } else if (0 === this.transports.length) {
- // Emit error on next tick so it can be listened to
- this.setTimeoutFn(function () {
- _this2.emit("error", "No transports available");
- }, 0);
- return;
- } else {
- transport = this.transports[0];
- }
-
- this.readyState = "opening"; // Retry with the next transport if the transport is disabled (jsonp: false)
-
- try {
- transport = this.createTransport(transport);
- } catch (e) {
- debug("error while creating transport: %s", e);
- this.transports.shift();
- this.open();
- return;
+ function Socket(io, nsp, opts) {
+ var _this;
+
+ _classCallCheck(this, Socket);
+
+ _this = _super.call(this);
+ _this.connected = false;
+ _this.disconnected = true;
+ _this.receiveBuffer = [];
+ _this.sendBuffer = [];
+ _this.ids = 0;
+ _this.acks = {};
+ _this.flags = {};
+ _this.io = io;
+ _this.nsp = nsp;
+
+ if (opts && opts.auth) {
+ _this.auth = opts.auth;
}
- transport.open();
- this.setTransport(transport);
+ if (_this.io._autoConnect) _this.open();
+ return _this;
}
/**
- * Sets the current transport. Disables the existing one (if any).
+ * Subscribe to open, close and packet events
*
- * @api private
+ * @private
*/
- }, {
- key: "setTransport",
- value: function setTransport(transport) {
- var _this3 = this;
- debug("setting transport %s", transport.name);
+ _createClass(Socket, [{
+ key: "subEvents",
+ value: function subEvents() {
+ if (this.subs) return;
+ var io = this.io;
+ this.subs = [on(io, "open", this.onopen.bind(this)), on(io, "packet", this.onpacket.bind(this)), on(io, "error", this.onerror.bind(this)), on(io, "close", this.onclose.bind(this))];
+ }
+ /**
+ * Whether the Socket will try to reconnect when its Manager connects or reconnects
+ */
- if (this.transport) {
- debug("clearing existing transport %s", this.transport.name);
- this.transport.removeAllListeners();
- } // set up transport
+ }, {
+ key: "active",
+ get: function get() {
+ return !!this.subs;
+ }
+ /**
+ * "Opens" the socket.
+ *
+ * @public
+ */
+
+ }, {
+ key: "connect",
+ value: function connect() {
+ if (this.connected) return this;
+ this.subEvents();
+ if (!this.io["_reconnecting"]) this.io.open(); // ensure open
+
+ if ("open" === this.io._readyState) this.onopen();
+ return this;
+ }
+ /**
+ * Alias for connect()
+ */
+
+ }, {
+ key: "open",
+ value: function open() {
+ return this.connect();
+ }
+ /**
+ * Sends a `message` event.
+ *
+ * @return self
+ * @public
+ */
+
+ }, {
+ key: "send",
+ value: function send() {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+ args.unshift("message");
+ this.emit.apply(this, args);
+ return this;
+ }
+ /**
+ * Override `emit`.
+ * If the event is in `events`, it's emitted normally.
+ *
+ * @return self
+ * @public
+ */
+
+ }, {
+ key: "emit",
+ value: function emit(ev) {
+ if (RESERVED_EVENTS.hasOwnProperty(ev)) {
+ throw new Error('"' + ev + '" is a reserved event name');
+ }
- this.transport = transport; // set up transport listeners
+ for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+ args[_key2 - 1] = arguments[_key2];
+ }
- transport.on("drain", this.onDrain.bind(this)).on("packet", this.onPacket.bind(this)).on("error", this.onError.bind(this)).on("close", function () {
- _this3.onClose("transport close");
- });
- }
- /**
- * Probes a transport.
- *
- * @param {String} transport name
- * @api private
- */
+ args.unshift(ev);
+ var packet = {
+ type: PacketType.EVENT,
+ data: args
+ };
+ packet.options = {};
+ packet.options.compress = this.flags.compress !== false; // event ack callback
- }, {
- key: "probe",
- value: function probe(name) {
- var _this4 = this;
+ if ("function" === typeof args[args.length - 1]) {
+ this.acks[this.ids] = args.pop();
+ packet.id = this.ids++;
+ }
- debug('probing transport "%s"', name);
- var transport = this.createTransport(name, {
- probe: 1
- });
- var failed = false;
- Socket.priorWebsocketSuccess = false;
-
- var onTransportOpen = function onTransportOpen() {
- if (failed) return;
- debug('probe transport "%s" opened', name);
- transport.send([{
- type: "ping",
- data: "probe"
- }]);
- transport.once("packet", function (msg) {
- if (failed) return;
-
- if ("pong" === msg.type && "probe" === msg.data) {
- debug('probe transport "%s" pong', name);
- _this4.upgrading = true;
-
- _this4.emit("upgrading", transport);
-
- if (!transport) return;
- Socket.priorWebsocketSuccess = "websocket" === transport.name;
- debug('pausing current transport "%s"', _this4.transport.name);
-
- _this4.transport.pause(function () {
- if (failed) return;
- if ("closed" === _this4.readyState) return;
- debug("changing transport and sending upgrade packet");
- cleanup();
-
- _this4.setTransport(transport);
-
- transport.send([{
- type: "upgrade"
- }]);
-
- _this4.emit("upgrade", transport);
-
- transport = null;
- _this4.upgrading = false;
-
- _this4.flush();
- });
- } else {
- debug('probe transport "%s" failed', name);
- var err = new Error("probe error");
- err.transport = transport.name;
-
- _this4.emit("upgradeError", err);
- }
- });
- };
-
- function freezeTransport() {
- if (failed) return; // Any callback called by transport should be ignored since now
-
- failed = true;
- cleanup();
- transport.close();
- transport = null;
- } // Handle any error that happens while probing
-
-
- var onerror = function onerror(err) {
- var error = new Error("probe error: " + err);
- error.transport = transport.name;
- freezeTransport();
- debug('probe transport "%s" failed because of error: %s', name, err);
-
- _this4.emit("upgradeError", error);
- };
-
- function onTransportClose() {
- onerror("transport closed");
- } // When the socket is closed while we're probing
-
-
- function onclose() {
- onerror("socket closed");
- } // When the socket is upgraded while we're probing
-
-
- function onupgrade(to) {
- if (transport && to.name !== transport.name) {
- debug('"%s" works - aborting "%s"', to.name, transport.name);
- freezeTransport();
- }
- } // Remove all listeners on the transport and on self
-
-
- var cleanup = function cleanup() {
- transport.removeListener("open", onTransportOpen);
- transport.removeListener("error", onerror);
- transport.removeListener("close", onTransportClose);
+ var isTransportWritable = this.io.engine && this.io.engine.transport && this.io.engine.transport.writable;
+ var discardPacket = this.flags["volatile"] && (!isTransportWritable || !this.connected);
- _this4.removeListener("close", onclose);
-
- _this4.removeListener("upgrading", onupgrade);
- };
-
- transport.once("open", onTransportOpen);
- transport.once("error", onerror);
- transport.once("close", onTransportClose);
- this.once("close", onclose);
- this.once("upgrading", onupgrade);
- transport.open();
- }
- /**
- * Called when connection is deemed open.
- *
- * @api public
- */
-
- }, {
- key: "onOpen",
- value: function onOpen() {
- debug("socket open");
- this.readyState = "open";
- Socket.priorWebsocketSuccess = "websocket" === this.transport.name;
- this.emit("open");
- this.flush(); // we check for `readyState` in case an `open`
- // listener already closed the socket
-
- if ("open" === this.readyState && this.opts.upgrade && this.transport.pause) {
- debug("starting upgrade probes");
- var i = 0;
- var l = this.upgrades.length;
-
- for (; i < l; i++) {
- this.probe(this.upgrades[i]);
- }
- }
- }
- /**
- * Handles a packet.
- *
- * @api private
- */
-
- }, {
- key: "onPacket",
- value: function onPacket(packet) {
- if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
- debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
- this.emit("packet", packet); // Socket is live - any packet counts
-
- this.emit("heartbeat");
-
- switch (packet.type) {
- case "open":
- this.onHandshake(JSON.parse(packet.data));
- break;
-
- case "ping":
- this.resetPingTimeout();
- this.sendPacket("pong");
- this.emit("ping");
- this.emit("pong");
- break;
-
- case "error":
- var err = new Error("server error");
- err.code = packet.data;
- this.onError(err);
- break;
-
- case "message":
- this.emit("data", packet.data);
- this.emit("message", packet.data);
- break;
+ if (discardPacket) ; else if (this.connected) {
+ this.packet(packet);
+ } else {
+ this.sendBuffer.push(packet);
}
- } else {
- debug('packet received with socket readyState "%s"', this.readyState);
- }
- }
- /**
- * Called upon handshake completion.
- *
- * @param {Object} handshake obj
- * @api private
- */
-
- }, {
- key: "onHandshake",
- value: function onHandshake(data) {
- this.emit("handshake", data);
- this.id = data.sid;
- this.transport.query.sid = data.sid;
- this.upgrades = this.filterUpgrades(data.upgrades);
- this.pingInterval = data.pingInterval;
- this.pingTimeout = data.pingTimeout;
- this.onOpen(); // In case open handler closes socket
-
- if ("closed" === this.readyState) return;
- this.resetPingTimeout();
- }
- /**
- * Sets and resets ping timeout timer based on server pings.
- *
- * @api private
- */
-
- }, {
- key: "resetPingTimeout",
- value: function resetPingTimeout() {
- var _this5 = this;
-
- this.clearTimeoutFn(this.pingTimeoutTimer);
- this.pingTimeoutTimer = this.setTimeoutFn(function () {
- _this5.onClose("ping timeout");
- }, this.pingInterval + this.pingTimeout);
-
- if (this.opts.autoUnref) {
- this.pingTimeoutTimer.unref();
- }
- }
- /**
- * Called on `drain` event
- *
- * @api private
- */
-
- }, {
- key: "onDrain",
- value: function onDrain() {
- this.writeBuffer.splice(0, this.prevBufferLen); // setting prevBufferLen = 0 is very important
- // for example, when upgrading, upgrade packet is sent over,
- // and a nonzero prevBufferLen could cause problems on `drain`
-
- this.prevBufferLen = 0;
-
- if (0 === this.writeBuffer.length) {
- this.emit("drain");
- } else {
- this.flush();
- }
- }
- /**
- * Flush write buffers.
- *
- * @api private
- */
-
- }, {
- key: "flush",
- value: function flush() {
- if ("closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
- debug("flushing %d packets in socket", this.writeBuffer.length);
- this.transport.send(this.writeBuffer); // keep track of current length of writeBuffer
- // splice writeBuffer and callbackBuffer on `drain`
- this.prevBufferLen = this.writeBuffer.length;
- this.emit("flush");
- }
- }
- /**
- * Sends a message.
- *
- * @param {String} message.
- * @param {Function} callback function.
- * @param {Object} options.
- * @return {Socket} for chaining.
- * @api public
- */
-
- }, {
- key: "write",
- value: function write(msg, options, fn) {
- this.sendPacket("message", msg, options, fn);
- return this;
- }
- }, {
- key: "send",
- value: function send(msg, options, fn) {
- this.sendPacket("message", msg, options, fn);
- return this;
- }
- /**
- * Sends a packet.
- *
- * @param {String} packet type.
- * @param {String} data.
- * @param {Object} options.
- * @param {Function} callback function.
- * @api private
- */
-
- }, {
- key: "sendPacket",
- value: function sendPacket(type, data, options, fn) {
- if ("function" === typeof data) {
- fn = data;
- data = undefined;
- }
-
- if ("function" === typeof options) {
- fn = options;
- options = null;
+ this.flags = {};
+ return this;
}
-
- if ("closing" === this.readyState || "closed" === this.readyState) {
- return;
+ /**
+ * Sends a packet.
+ *
+ * @param packet
+ * @private
+ */
+
+ }, {
+ key: "packet",
+ value: function packet(_packet) {
+ _packet.nsp = this.nsp;
+
+ this.io._packet(_packet);
}
-
- options = options || {};
- options.compress = false !== options.compress;
- var packet = {
- type: type,
- data: data,
- options: options
- };
- this.emit("packetCreate", packet);
- this.writeBuffer.push(packet);
- if (fn) this.once("flush", fn);
- this.flush();
- }
- /**
- * Closes the connection.
- *
- * @api private
- */
-
- }, {
- key: "close",
- value: function close() {
- var _this6 = this;
-
- var close = function close() {
- _this6.onClose("forced close");
-
- debug("socket closing - telling transport to close");
-
- _this6.transport.close();
- };
-
- var cleanupAndClose = function cleanupAndClose() {
- _this6.removeListener("upgrade", cleanupAndClose);
-
- _this6.removeListener("upgradeError", cleanupAndClose);
-
- close();
- };
-
- var waitForUpgrade = function waitForUpgrade() {
- // wait for upgrade to finish since we can't send packets while pausing a transport
- _this6.once("upgrade", cleanupAndClose);
-
- _this6.once("upgradeError", cleanupAndClose);
- };
-
- if ("opening" === this.readyState || "open" === this.readyState) {
- this.readyState = "closing";
-
- if (this.writeBuffer.length) {
- this.once("drain", function () {
- if (_this6.upgrading) {
- waitForUpgrade();
- } else {
- close();
- }
+ /**
+ * Called upon engine `open`.
+ *
+ * @private
+ */
+
+ }, {
+ key: "onopen",
+ value: function onopen() {
+ var _this2 = this;
+
+ if (typeof this.auth == "function") {
+ this.auth(function (data) {
+ _this2.packet({
+ type: PacketType.CONNECT,
+ data: data
+ });
});
- } else if (this.upgrading) {
- waitForUpgrade();
} else {
- close();
+ this.packet({
+ type: PacketType.CONNECT,
+ data: this.auth
+ });
}
}
+ /**
+ * Called upon engine or manager `error`.
+ *
+ * @param err
+ * @private
+ */
+
+ }, {
+ key: "onerror",
+ value: function onerror(err) {
+ if (!this.connected) {
+ this.emitReserved("connect_error", err);
+ }
+ }
+ /**
+ * Called upon engine `close`.
+ *
+ * @param reason
+ * @private
+ */
+
+ }, {
+ key: "onclose",
+ value: function onclose(reason) {
+ this.connected = false;
+ this.disconnected = true;
+ delete this.id;
+ this.emitReserved("disconnect", reason);
+ }
+ /**
+ * Called with socket packet.
+ *
+ * @param packet
+ * @private
+ */
+
+ }, {
+ key: "onpacket",
+ value: function onpacket(packet) {
+ var sameNamespace = packet.nsp === this.nsp;
+ if (!sameNamespace) return;
- return this;
- }
- /**
- * Called upon transport error
- *
- * @api private
- */
-
- }, {
- key: "onError",
- value: function onError(err) {
- debug("socket error %j", err);
- Socket.priorWebsocketSuccess = false;
- this.emit("error", err);
- this.onClose("transport error", err);
- }
- /**
- * Called upon transport close.
- *
- * @api private
- */
-
- }, {
- key: "onClose",
- value: function onClose(reason, desc) {
- if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
- debug('socket close with reason: "%s"', reason); // clear timers
-
- this.clearTimeoutFn(this.pingIntervalTimer);
- this.clearTimeoutFn(this.pingTimeoutTimer); // stop event from firing again for transport
-
- this.transport.removeAllListeners("close"); // ensure transport won't stay open
-
- this.transport.close(); // ignore further transport communication
-
- this.transport.removeAllListeners();
-
- if (typeof removeEventListener === "function") {
- removeEventListener("offline", this.offlineEventListener, false);
- } // set ready state
-
-
- this.readyState = "closed"; // clear session id
-
- this.id = null; // emit close event
-
- this.emit("close", reason, desc); // clean buffers after, so users can still
- // grab the buffers on `close` event
-
- this.writeBuffer = [];
- this.prevBufferLen = 0;
- }
- }
- /**
- * Filters upgrades, returning only those matching client transports.
- *
- * @param {Array} server upgrades
- * @api private
- *
- */
-
- }, {
- key: "filterUpgrades",
- value: function filterUpgrades(upgrades) {
- var filteredUpgrades = [];
- var i = 0;
- var j = upgrades.length;
-
- for (; i < j; i++) {
- if (~this.transports.indexOf(upgrades[i])) filteredUpgrades.push(upgrades[i]);
- }
-
- return filteredUpgrades;
- }
- }]);
-
- return Socket;
-}(Emitter);
-
-Socket.priorWebsocketSuccess = false;
-/**
- * Protocol version.
- *
- * @api public
- */
-
-Socket.protocol = parser.protocol; // this is an int
-
-function clone(obj) {
- var o = {};
-
- for (var i in obj) {
- if (obj.hasOwnProperty(i)) {
- o[i] = obj[i];
- }
- }
-
- return o;
-}
-
-module.exports = Socket;
-
-/***/ }),
-
-/***/ "./node_modules/engine.io-client/lib/transport.js":
-/*!********************************************************!*\
- !*** ./node_modules/engine.io-client/lib/transport.js ***!
- \********************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
-
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
-
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
-
-var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
-
-var _require = __webpack_require__(/*! ./util */ "./node_modules/engine.io-client/lib/util.js"),
- installTimerFunctions = _require.installTimerFunctions;
-
-var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("engine.io-client:transport");
-
-var Transport = /*#__PURE__*/function (_Emitter) {
- _inherits(Transport, _Emitter);
-
- var _super = _createSuper(Transport);
-
- /**
- * Transport abstract constructor.
- *
- * @param {Object} options.
- * @api private
- */
- function Transport(opts) {
- var _this;
-
- _classCallCheck(this, Transport);
-
- _this = _super.call(this);
- installTimerFunctions(_assertThisInitialized(_this), opts);
- _this.opts = opts;
- _this.query = opts.query;
- _this.readyState = "";
- _this.socket = opts.socket;
- return _this;
- }
- /**
- * Emits an error.
- *
- * @param {String} str
- * @return {Transport} for chaining
- * @api public
- */
-
-
- _createClass(Transport, [{
- key: "onError",
- value: function onError(msg, desc) {
- var err = new Error(msg);
- err.type = "TransportError";
- err.description = desc;
- this.emit("error", err);
- return this;
- }
- /**
- * Opens the transport.
- *
- * @api public
- */
-
- }, {
- key: "open",
- value: function open() {
- if ("closed" === this.readyState || "" === this.readyState) {
- this.readyState = "opening";
- this.doOpen();
- }
-
- return this;
- }
- /**
- * Closes the transport.
- *
- * @api private
- */
-
- }, {
- key: "close",
- value: function close() {
- if ("opening" === this.readyState || "open" === this.readyState) {
- this.doClose();
- this.onClose();
- }
-
- return this;
- }
- /**
- * Sends multiple packets.
- *
- * @param {Array} packets
- * @api private
- */
-
- }, {
- key: "send",
- value: function send(packets) {
- if ("open" === this.readyState) {
- this.write(packets);
- } else {
- // this might happen if the transport was silently closed in the beforeunload event handler
- debug("transport is not open, discarding packets");
- }
- }
- /**
- * Called upon open
- *
- * @api private
- */
-
- }, {
- key: "onOpen",
- value: function onOpen() {
- this.readyState = "open";
- this.writable = true;
- this.emit("open");
- }
- /**
- * Called with data.
- *
- * @param {String} data
- * @api private
- */
-
- }, {
- key: "onData",
- value: function onData(data) {
- var packet = parser.decodePacket(data, this.socket.binaryType);
- this.onPacket(packet);
- }
- /**
- * Called with a decoded packet.
- */
-
- }, {
- key: "onPacket",
- value: function onPacket(packet) {
- this.emit("packet", packet);
- }
- /**
- * Called upon close.
- *
- * @api private
- */
-
- }, {
- key: "onClose",
- value: function onClose() {
- this.readyState = "closed";
- this.emit("close");
- }
- }]);
-
- return Transport;
-}(Emitter);
-
-module.exports = Transport;
-
-/***/ }),
-
-/***/ "./node_modules/engine.io-client/lib/transports/index.js":
-/*!***************************************************************!*\
- !*** ./node_modules/engine.io-client/lib/transports/index.js ***!
- \***************************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/engine.io-client/lib/xmlhttprequest.js");
-
-var XHR = __webpack_require__(/*! ./polling-xhr */ "./node_modules/engine.io-client/lib/transports/polling-xhr.js");
-
-var JSONP = __webpack_require__(/*! ./polling-jsonp */ "./node_modules/engine.io-client/lib/transports/polling-jsonp.js");
-
-var websocket = __webpack_require__(/*! ./websocket */ "./node_modules/engine.io-client/lib/transports/websocket.js");
-
-exports.polling = polling;
-exports.websocket = websocket;
-/**
- * Polling transport polymorphic constructor.
- * Decides on xhr vs jsonp based on feature detection.
- *
- * @api private
- */
-
-function polling(opts) {
- var xhr;
- var xd = false;
- var xs = false;
- var jsonp = false !== opts.jsonp;
-
- if (typeof location !== "undefined") {
- var isSSL = "https:" === location.protocol;
- var port = location.port; // some user agents have empty `location.port`
-
- if (!port) {
- port = isSSL ? 443 : 80;
- }
-
- xd = opts.hostname !== location.hostname || port !== opts.port;
- xs = opts.secure !== isSSL;
- }
-
- opts.xdomain = xd;
- opts.xscheme = xs;
- xhr = new XMLHttpRequest(opts);
-
- if ("open" in xhr && !opts.forceJSONP) {
- return new XHR(opts);
- } else {
- if (!jsonp) throw new Error("JSONP disabled");
- return new JSONP(opts);
- }
-}
-
-/***/ }),
-
-/***/ "./node_modules/engine.io-client/lib/transports/polling-jsonp.js":
-/*!***********************************************************************!*\
- !*** ./node_modules/engine.io-client/lib/transports/polling-jsonp.js ***!
- \***********************************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
-
-function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
-
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
-
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-var Polling = __webpack_require__(/*! ./polling */ "./node_modules/engine.io-client/lib/transports/polling.js");
-
-var globalThis = __webpack_require__(/*! ../globalThis */ "./node_modules/engine.io-client/lib/globalThis.browser.js");
-
-var rNewline = /\n/g;
-var rEscapedNewline = /\\n/g;
-/**
- * Global JSONP callbacks.
- */
-
-var callbacks;
-
-var JSONPPolling = /*#__PURE__*/function (_Polling) {
- _inherits(JSONPPolling, _Polling);
-
- var _super = _createSuper(JSONPPolling);
-
- /**
- * JSONP Polling constructor.
- *
- * @param {Object} opts.
- * @api public
- */
- function JSONPPolling(opts) {
- var _this;
-
- _classCallCheck(this, JSONPPolling);
-
- _this = _super.call(this, opts);
- _this.query = _this.query || {}; // define global callbacks array if not present
- // we do this here (lazily) to avoid unneeded global pollution
-
- if (!callbacks) {
- // we need to consider multiple engines in the same page
- callbacks = globalThis.___eio = globalThis.___eio || [];
- } // callback identifier
-
-
- _this.index = callbacks.length; // add callback to jsonp global
-
- callbacks.push(_this.onData.bind(_assertThisInitialized(_this))); // append to query string
-
- _this.query.j = _this.index;
- return _this;
- }
- /**
- * JSONP only supports binary as base64 encoded strings
- */
-
-
- _createClass(JSONPPolling, [{
- key: "supportsBinary",
- get: function get() {
- return false;
- }
- /**
- * Closes the socket.
- *
- * @api private
- */
-
- }, {
- key: "doClose",
- value: function doClose() {
- if (this.script) {
- // prevent spurious errors from being emitted when the window is unloaded
- this.script.onerror = function () {};
-
- this.script.parentNode.removeChild(this.script);
- this.script = null;
- }
-
- if (this.form) {
- this.form.parentNode.removeChild(this.form);
- this.form = null;
- this.iframe = null;
- }
-
- _get(_getPrototypeOf(JSONPPolling.prototype), "doClose", this).call(this);
- }
- /**
- * Starts a poll cycle.
- *
- * @api private
- */
-
- }, {
- key: "doPoll",
- value: function doPoll() {
- var _this2 = this;
-
- var script = document.createElement("script");
-
- if (this.script) {
- this.script.parentNode.removeChild(this.script);
- this.script = null;
- }
-
- script.async = true;
- script.src = this.uri();
-
- script.onerror = function (e) {
- _this2.onError("jsonp poll error", e);
- };
-
- var insertAt = document.getElementsByTagName("script")[0];
-
- if (insertAt) {
- insertAt.parentNode.insertBefore(script, insertAt);
- } else {
- (document.head || document.body).appendChild(script);
- }
-
- this.script = script;
- var isUAgecko = "undefined" !== typeof navigator && /gecko/i.test(navigator.userAgent);
-
- if (isUAgecko) {
- this.setTimeoutFn(function () {
- var iframe = document.createElement("iframe");
- document.body.appendChild(iframe);
- document.body.removeChild(iframe);
- }, 100);
- }
- }
- /**
- * Writes with a hidden iframe.
- *
- * @param {String} data to send
- * @param {Function} called upon flush.
- * @api private
- */
-
- }, {
- key: "doWrite",
- value: function doWrite(data, fn) {
- var _this3 = this;
-
- var iframe;
-
- if (!this.form) {
- var form = document.createElement("form");
- var area = document.createElement("textarea");
- var id = this.iframeId = "eio_iframe_" + this.index;
- form.className = "socketio";
- form.style.position = "absolute";
- form.style.top = "-1000px";
- form.style.left = "-1000px";
- form.target = id;
- form.method = "POST";
- form.setAttribute("accept-charset", "utf-8");
- area.name = "d";
- form.appendChild(area);
- document.body.appendChild(form);
- this.form = form;
- this.area = area;
- }
-
- this.form.action = this.uri();
-
- function complete() {
- initIframe();
- fn();
- }
-
- var initIframe = function initIframe() {
- if (_this3.iframe) {
- try {
- _this3.form.removeChild(_this3.iframe);
- } catch (e) {
- _this3.onError("jsonp polling iframe removal error", e);
- }
- }
-
- try {
- // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
- var html = '