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socket.io.min.js

socket.io.min.js 49 KB
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  1. /*!
    2. 

  2.  * Socket.IO v4.7.5
    3. 

  3.  * (c) 2014-2024 Guillermo Rauch
    4. 

  4.  * Released under the MIT License.
    5. 

  5.  */
    6. 

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error",t)})),this.transport.ready.then((function(){e.transport.createBidirectionalStream().then((function(t){var n=function(e,t){B||(B=new TextDecoder);var n=[],r=0,i=-1,o=!1;return new TransformStream({transform:function(s,a){for(n.push(s);;){if(0===r){if(q(n)<1)break;var c=D(n,1);o=128==(128&c[0]),i=127&c[0],r=i<126?3:126===i?1:2}else if(1===r){if(q(n)<2)break;var u=D(n,2);i=new DataView(u.buffer,u.byteOffset,u.length).getUint16(0),r=3}else if(2===r){if(q(n)<8)break;var h=D(n,8),f=new DataView(h.buffer,h.byteOffset,h.length),l=f.getUint32(0);if(l>Math.pow(2,21)-1){a.enqueue(b);break}i=l*Math.pow(2,32)+f.getUint32(4),r=3}else{if(q(n)<i)break;var p=D(n,i);a.enqueue(N(o?p:B.decode(p),t)),r=0}if(0===i||i>e){a.enqueue(b);break}}}})}(Number.MAX_SAFE_INTEGER,e.socket.binaryType),r=t.readable.pipeThrough(n).getReader(),i=j();i.readable.pipeTo(t.writable),e.writer=i.writable.getWriter();!function t(){r.read().then((function(n){var r=n.done,i=n.value;r||(e.onPacket(i),t())})).catch((function(e){}))}();var o={type:"open"};e.query.sid&&(o.data='{"sid":"'.concat(e.query.sid,'"}')),e.writer.write(o).then((function(){return e.onOpen()}))}))})))}},{key:"write",value:function(e){var t=this;this.writable=!1;for(var n=function(){var n=e[r],i=r===e.length-1;t.writer.write(n).then((function(){i&&ce((function(){t.writable=!0,t.emitReserved("drain")}),t.setTimeoutFn)}))},r=0;r<e.length;r++)n()}},{key:"doClose",value:function(){var e;null===(e=this.transport)||void 0===e||e.close()}}]),i}(W),pe={websocket:fe,webtransport:le,polling:oe},de=/^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,ye=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function ve(e){var t=e,n=e.indexOf("["),r=e.indexOf("]");-1!=n&&-1!=r&&(e=e.substring(0,n)+e.substring(n,r).replace(/:/g,";")+e.substring(r,e.length));for(var i,o,s=de.exec(e||""),a={},c=14;c--;)a[ye[c]]=s[c]||"";return-1!=n&&-1!=r&&(a.source=t,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a.pathNames=function(e,t){var n=/\/{2,9}/g,r=t.replace(n,"/").split("/");"/"!=t.slice(0,1)&&0!==t.length||r.splice(0,1);"/"==t.slice(-1)&&r.splice(r.length-1,1);return r}(0,a.path),a.queryKey=(i=a.query,o={},i.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(function(e,t,n){t&&(o[t]=n)})),o),a}var ge=function(n){o(a,n);var s=l(a);function a(n){var r,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return t(this,a),(r=s.call(this)).binaryType="arraybuffer",r.writeBuffer=[],n&&"object"===e(n)&&(o=n,n=null),n?(n=ve(n),o.hostname=n.host,o.secure="https"===n.protocol||"wss"===n.protocol,o.port=n.port,n.query&&(o.query=n.query)):o.host&&(o.hostname=ve(o.host).host),H(f(r),o),r.secure=null!=o.secure?o.secure:"undefined"!=typeof location&&"https:"===location.protocol,o.hostname&&!o.port&&(o.port=r.secure?"443":"80"),r.hostname=o.hostname||("undefined"!=typeof location?location.hostname:"localhost"),r.port=o.port||("undefined"!=typeof location&&location.port?location.port:r.secure?"443":"80"),r.transports=o.transports||["polling","websocket","webtransport"],r.writeBuffer=[],r.prevBufferLen=0,r.opts=i({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,addTrailingSlash:!0,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!1},o),r.opts.path=r.opts.path.replace(/\/$/,"")+(r.opts.addTrailingSlash?"/":""),"string"==typeof r.opts.query&&(r.opts.query=function(e){for(var t={},n=e.split("&"),r=0,i=n.length;r<i;r++){var o=n[r].split("=");t[decodeURIComponent(o[0])]=decodeURIComponent(o[1])}return t}(r.opts.query)),r.id=null,r.upgrades=null,r.pingInterval=null,r.pingTimeout=null,r.pingTimeoutTimer=null,"function"==typeof addEventListener&&(r.opts.closeOnBeforeunload&&(r.beforeunloadEventListener=function(){r.transport&&(r.transport.removeAllListeners(),r.transport.close())},addEventListener("beforeunload",r.beforeunloadEventListener,!1)),"localhost"!==r.hostname&&(r.offlineEventListener=function(){r.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",r.offlineEventListener,!1))),r.open(),r}return r(a,[{key:"createTransport",value:function(e){var t=i({},this.opts.query);t.EIO=4,t.transport=e,this.id&&(t.sid=this.id);var n=i({},this.opts,{query:t,socket:this,hostname:this.hostname,secure:this.secure,port:this.port},this.opts.transportOptions[e]);return new pe[e](n)}},{key:"open",value:function(){var e,t=this;if(this.opts.rememberUpgrade&&a.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))e="websocket";else{if(0===this.transports.length)return void this.setTimeoutFn((function(){t.emitReserved("error","No transports available")}),0);e=this.transports[0]}this.readyState="opening";try{e=this.createTransport(e)}catch(e){return this.transports.shift(),void this.open()}e.open(),this.setTransport(e)}},{key:"setTransport",value:function(e){var t=this;this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",(function(e){return t.onClose("transport close",e)}))}},{key:"probe",value:function(e){var t=this,n=this.createTransport(e),r=!1;a.priorWebsocketSuccess=!1;var i=function(){r||(n.send([{type:"ping",data:"probe"}]),n.once("packet",(function(e){if(!r)if("pong"===e.type&&"probe"===e.data){if(t.upgrading=!0,t.emitReserved("upgrading",n),!n)return;a.priorWebsocketSuccess="websocket"===n.name,t.transport.pause((function(){r||"closed"!==t.readyState&&(f(),t.setTransport(n),n.send([{type:"upgrade"}]),t.emitReserved("upgrade",n),n=null,t.upgrading=!1,t.flush())}))}else{var i=new Error("probe error");i.transport=n.name,t.emitReserved("upgradeError",i)}})))};function o(){r||(r=!0,f(),n.close(),n=null)}var s=function(e){var r=new Error("probe error: "+e);r.transport=n.name,o(),t.emitReserved("upgradeError",r)};function c(){s("transport closed")}function u(){s("socket closed")}function h(e){n&&e.name!==n.name&&o()}var f=function(){n.removeListener("open",i),n.removeListener("error",s),n.removeListener("close",c),t.off("close",u),t.off("upgrading",h)};n.once("open",i),n.once("error",s),n.once("close",c),this.once("close",u),this.once("upgrading",h),-1!==this.upgrades.indexOf("webtransport")&&"webtransport"!==e?this.setTimeoutFn((function(){r||n.open()}),200):n.open()}},{key:"onOpen",value:function(){if(this.readyState="open",a.priorWebsocketSuccess="websocket"===this.transport.name,this.emitReserved("open"),this.flush(),"open"===this.readyState&&this.opts.upgrade)for(var e=0,t=this.upgrades.length;e<t;e++)this.probe(this.upgrades[e])}},{key:"onPacket",value:function(e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":var t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data)}}},{key:"onHandshake",value:function(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),"closed"!==this.readyState&&this.resetPingTimeout()}},{key:"resetPingTimeout",value:function(){var e=this;this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn((function(){e.onClose("ping timeout")}),this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}},{key:"onDrain",value:function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emitReserved("drain"):this.flush()}},{key:"flush",value:function(){if("closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){var e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}},{key:"getWritablePackets",value:function(){if(!(this.maxPayload&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;for(var e,t=1,n=0;n<this.writeBuffer.length;n++){var r=this.writeBuffer[n].data;if(r&&(t+="string"==typeof(e=r)?function(e){for(var t=0,n=0,r=0,i=e.length;r<i;r++)(t=e.charCodeAt(r))<128?n+=1:t<2048?n+=2:t<55296||t>=57344?n+=3:(r++,n+=4);return n}(e):Math.ceil(1.33*(e.byteLength||e.size))),n>0&&t>this.maxPayload)return this.writeBuffer.slice(0,n);t+=2}return this.writeBuffer}},{key:"write",value:function(e,t,n){return this.sendPacket("message",e,t,n),this}},{key:"send",value:function(e,t,n){return this.sendPacket("message",e,t,n),this}},{key:"sendPacket",value:function(e,t,n,r){if("function"==typeof t&&(r=t,t=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){(n=n||{}).compress=!1!==n.compress;var i={type:e,data:t,options:n};this.emitReserved("packetCreate",i),this.writeBuffer.push(i),r&&this.once("flush",r),this.flush()}}},{key:"close",value:function(){var e=this,t=function(){e.onClose("forced close"),e.transport.close()},n=function n(){e.off("upgrade",n),e.off("upgradeError",n),t()},r=function(){e.once("upgrade",n),e.once("upgradeError",n)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(function(){e.upgrading?r():t()})):this.upgrading?r():t()),this}},{key:"onError",value:function(e){a.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}},{key:"onClose",value:function(e,t){"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("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}},{key:"filterUpgrades",value:function(e){for(var t=[],n=0,r=e.length;n<r;n++)~this.transports.indexOf(e[n])&&t.push(e[n]);return t}}]),a}(U);ge.protocol=4,ge.protocol;var me="function"==typeof ArrayBuffer,be=function(e){return"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(e):e.buffer instanceof ArrayBuffer},ke=Object.prototype.toString,we="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===ke.call(Blob),_e="function"==typeof File||"undefined"!=typeof File&&"[object FileConstructor]"===ke.call(File);function Ee(e){return me&&(e instanceof ArrayBuffer||be(e))||we&&e instanceof Blob||_e&&e instanceof File}function Ae(t,n){if(!t||"object"!==e(t))return!1;if(Array.isArray(t)){for(var r=0,i=t.length;r<i;r++)if(Ae(t[r]))return!0;return!1}if(Ee(t))return!0;if(t.toJSON&&"function"==typeof t.toJSON&&1===arguments.length)return Ae(t.toJSON(),!0);for(var o in t)if(Object.prototype.hasOwnProperty.call(t,o)&&Ae(t[o]))return!0;return!1}function Oe(e){var t=[],n=e.data,r=e;return r.data=Te(n,t),r.attachments=t.length,{packet:r,buffers:t}}function Te(t,n){if(!t)return t;if(Ee(t)){var r={_placeholder:!0,num:n.length};return n.push(t),r}if(Array.isArray(t)){for(var i=new Array(t.length),o=0;o<t.length;o++)i[o]=Te(t[o],n);return i}if("object"===e(t)&&!(t instanceof Date)){var s={};for(var a in t)Object.prototype.hasOwnProperty.call(t,a)&&(s[a]=Te(t[a],n));return s}return t}function Re(e,t){return e.data=Ce(e.data,t),delete e.attachments,e}function Ce(t,n){if(!t)return t;if(t&&!0===t._placeholder){if("number"==typeof t.num&&t.num>=0&&t.num<n.length)return n[t.num];throw new Error("illegal attachments")}if(Array.isArray(t))for(var r=0;r<t.length;r++)t[r]=Ce(t[r],n);else if("object"===e(t))for(var i in t)Object.prototype.hasOwnProperty.call(t,i)&&(t[i]=Ce(t[i],n));return t}var Be,Se=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"];!function(e){e[e.CONNECT=0]="CONNECT",e[e.DISCONNECT=1]="DISCONNECT",e[e.EVENT=2]="EVENT",e[e.ACK=3]="ACK",e[e.CONNECT_ERROR=4]="CONNECT_ERROR",e[e.BINARY_EVENT=5]="BINARY_EVENT",e[e.BINARY_ACK=6]="BINARY_ACK"}(Be||(Be={}));var Ne=function(){function e(n){t(this,e),this.replacer=n}return r(e,[{key:"encode",value:function(e){return e.type!==Be.EVENT&&e.type!==Be.ACK||!Ae(e)?[this.encodeAsString(e)]:this.encodeAsBinary({type:e.type===Be.EVENT?Be.BINARY_EVENT:Be.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id})}},{key:"encodeAsString",value:function(e){var t=""+e.type;return e.type!==Be.BINARY_EVENT&&e.type!==Be.BINARY_ACK||(t+=e.attachments+"-"),e.nsp&&"/"!==e.nsp&&(t+=e.nsp+","),null!=e.id&&(t+=e.id),null!=e.data&&(t+=JSON.stringify(e.data,this.replacer)),t}},{key:"encodeAsBinary",value:function(e){var t=Oe(e),n=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(n),r}}]),e}();function Le(e){return"[object Object]"===Object.prototype.toString.call(e)}var xe=function(e){o(i,e);var n=l(i);function i(e){var r;return t(this,i),(r=n.call(this)).reviver=e,r}return r(i,[{key:"add",value:function(e){var t;if("string"==typeof e){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");var n=(t=this.decodeString(e)).type===Be.BINARY_EVENT;n||t.type===Be.BINARY_ACK?(t.type=n?Be.EVENT:Be.ACK,this.reconstructor=new Pe(t),0===t.attachments&&p(s(i.prototype),"emitReserved",this).call(this,"decoded",t)):p(s(i.prototype),"emitReserved",this).call(this,"decoded",t)}else{if(!Ee(e)&&!e.base64)throw new Error("Unknown type: "+e);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");(t=this.reconstructor.takeBinaryData(e))&&(this.reconstructor=null,p(s(i.prototype),"emitReserved",this).call(this,"decoded",t))}}},{key:"decodeString",value:function(e){var t=0,n={type:Number(e.charAt(0))};if(void 0===Be[n.type])throw new Error("unknown packet type "+n.type);if(n.type===Be.BINARY_EVENT||n.type===Be.BINARY_ACK){for(var r=t+1;"-"!==e.charAt(++t)&&t!=e.length;);var o=e.substring(r,t);if(o!=Number(o)||"-"!==e.charAt(t))throw new Error("Illegal attachments");n.attachments=Number(o)}if("/"===e.charAt(t+1)){for(var s=t+1;++t;){if(","===e.charAt(t))break;if(t===e.length)break}n.nsp=e.substring(s,t)}else n.nsp="/";var a=e.charAt(t+1);if(""!==a&&Number(a)==a){for(var c=t+1;++t;){var u=e.charAt(t);if(null==u||Number(u)!=u){--t;break}if(t===e.length)break}n.id=Number(e.substring(c,t+1))}if(e.charAt(++t)){var h=this.tryParse(e.substr(t));if(!i.isPayloadValid(n.type,h))throw new Error("invalid payload");n.data=h}return n}},{key:"tryParse",value:function(e){try{return JSON.parse(e,this.reviver)}catch(e){return!1}}},{key:"destroy",value:function(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}}],[{key:"isPayloadValid",value:function(e,t){switch(e){case Be.CONNECT:return Le(t);case Be.DISCONNECT:return void 0===t;case Be.CONNECT_ERROR:return"string"==typeof t||Le(t);case Be.EVENT:case Be.BINARY_EVENT:return Array.isArray(t)&&("number"==typeof t[0]||"string"==typeof t[0]&&-1===Se.indexOf(t[0]));case Be.ACK:case Be.BINARY_ACK:return Array.isArray(t)}}}]),i}(U),Pe=function(){function e(n){t(this,e),this.packet=n,this.buffers=[],this.reconPack=n}return r(e,[{key:"takeBinaryData",value:function(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){var t=Re(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}},{key:"finishedReconstruction",value:function(){this.reconPack=null,this.buffers=[]}}]),e}(),je=Object.freeze({__proto__:null,protocol:5,get PacketType(){return Be},Encoder:Ne,Decoder:xe});function qe(e,t,n){return e.on(t,n),function(){e.off(t,n)}}var De=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),Ue=function(e){o(a,e);var n=l(a);function a(e,r,o){var s;return t(this,a),(s=n.call(this)).connected=!1,s.recovered=!1,s.receiveBuffer=[],s.sendBuffer=[],s._queue=[],s._queueSeq=0,s.ids=0,s.acks={},s.flags={},s.io=e,s.nsp=r,o&&o.auth&&(s.auth=o.auth),s._opts=i({},o),s.io._autoConnect&&s.open(),s}return r(a,[{key:"disconnected",get:function(){return!this.connected}},{key:"subEvents",value:function(){if(!this.subs){var e=this.io;this.subs=[qe(e,"open",this.onopen.bind(this)),qe(e,"packet",this.onpacket.bind(this)),qe(e,"error",this.onerror.bind(this)),qe(e,"close",this.onclose.bind(this))]}}},{key:"active",get:function(){return!!this.subs}},{key:"connect",value:function(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}},{key:"open",value:function(){return this.connect()}},{key:"send",value:function(){for(var e=arguments.length,t=new Array(e),n=0;n<e;n++)t[n]=arguments[n];return t.unshift("message"),this.emit.apply(this,t),this}},{key:"emit",value:function(e){if(De.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');for(var t=arguments.length,n=new Array(t>1?t-1:0),r=1;r<t;r++)n[r-1]=arguments[r];if(n.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(n),this;var i={type:Be.EVENT,data:n,options:{}};if(i.options.compress=!1!==this.flags.compress,"function"==typeof n[n.length-1]){var o=this.ids++,s=n.pop();this._registerAckCallback(o,s),i.id=o}var a=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!a||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}},{key:"_registerAckCallback",value:function(e,t){var n,r=this,i=null!==(n=this.flags.timeout)&&void 0!==n?n:this._opts.ackTimeout;if(void 0!==i){var o=this.io.setTimeoutFn((function(){delete r.acks[e];for(var n=0;n<r.sendBuffer.length;n++)r.sendBuffer[n].id===e&&r.sendBuffer.splice(n,1);t.call(r,new Error("operation has timed out"))}),i),s=function(){r.io.clearTimeoutFn(o);for(var e=arguments.length,n=new Array(e),i=0;i<e;i++)n[i]=arguments[i];t.apply(r,n)};s.withError=!0,this.acks[e]=s}else this.acks[e]=t}},{key:"emitWithAck",value:function(e){for(var t=this,n=arguments.length,r=new Array(n>1?n-1:0),i=1;i<n;i++)r[i-1]=arguments[i];return new Promise((function(n,i){var o=function(e,t){return e?i(e):n(t)};o.withError=!0,r.push(o),t.emit.apply(t,[e].concat(r))}))}},{key:"_addToQueue",value:function(e){var t,n=this;"function"==typeof e[e.length-1]&&(t=e.pop());var r={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:i({fromQueue:!0},this.flags)};e.push((function(e){if(r===n._queue[0]){if(null!==e)r.tryCount>n._opts.retries&&(n._queue.shift(),t&&t(e));else if(n._queue.shift(),t){for(var i=arguments.length,o=new Array(i>1?i-1:0),s=1;s<i;s++)o[s-1]=arguments[s];t.apply(void 0,[null].concat(o))}return r.pending=!1,n._drainQueue()}})),this._queue.push(r),this._drainQueue()}},{key:"_drainQueue",value:function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0];if(this.connected&&0!==this._queue.length){var t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}}},{key:"packet",value:function(e){e.nsp=this.nsp,this.io._packet(e)}},{key:"onopen",value:function(){var e=this;"function"==typeof this.auth?this.auth((function(t){e._sendConnectPacket(t)})):this._sendConnectPacket(this.auth)}},{key:"_sendConnectPacket",value:function(e){this.packet({type:Be.CONNECT,data:this._pid?i({pid:this._pid,offset:this._lastOffset},e):e})}},{key:"onerror",value:function(e){this.connected||this.emitReserved("connect_error",e)}},{key:"onclose",value:function(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t),this._clearAcks()}},{key:"_clearAcks",value:function(){var e=this;Object.keys(this.acks).forEach((function(t){if(!e.sendBuffer.some((function(e){return String(e.id)===t}))){var n=e.acks[t];delete e.acks[t],n.withError&&n.call(e,new Error("socket has been disconnected"))}}))}},{key:"onpacket",value:function(e){if(e.nsp===this.nsp)switch(e.type){case Be.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):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 Be.EVENT:case Be.BINARY_EVENT:this.onevent(e);break;case Be.ACK:case Be.BINARY_ACK:this.onack(e);break;case Be.DISCONNECT:this.ondisconnect();break;case Be.CONNECT_ERROR:this.destroy();var t=new Error(e.data.message);t.data=e.data.data,this.emitReserved("connect_error",t)}}},{key:"onevent",value:function(e){var t=e.data||[];null!=e.id&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}},{key:"emitEvent",value:function(e){if(this._anyListeners&&this._anyListeners.length){var t,n=y(this._anyListeners.slice());try{for(n.s();!(t=n.n()).done;){t.value.apply(this,e)}}catch(e){n.e(e)}finally{n.f()}}p(s(a.prototype),"emit",this).apply(this,e),this._pid&&e.length&&"string"==typeof e[e.length-1]&&(this._lastOffset=e[e.length-1])}},{key:"ack",value:function(e){var t=this,n=!1;return function(){if(!n){n=!0;for(var r=arguments.length,i=new Array(r),o=0;o<r;o++)i[o]=arguments[o];t.packet({type:Be.ACK,id:e,data:i})}}}},{key:"onack",value:function(e){var t=this.acks[e.id];"function"==typeof t&&(delete this.acks[e.id],t.withError&&e.data.unshift(null),t.apply(this,e.data))}},{key:"onconnect",value:function(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}},{key:"emitBuffered",value:function(){var e=this;this.receiveBuffer.forEach((function(t){return e.emitEvent(t)})),this.receiveBuffer=[],this.sendBuffer.forEach((function(t){e.notifyOutgoingListeners(t),e.packet(t)})),this.sendBuffer=[]}},{key:"ondisconnect",value:function(){this.destroy(),this.onclose("io server disconnect")}},{key:"destroy",value:function(){this.subs&&(this.subs.forEach((function(e){return e()})),this.subs=void 0),this.io._destroy(this)}},{key:"disconnect",value:function(){return this.connected&&this.packet({type:Be.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}},{key:"close",value:function(){return this.disconnect()}},{key:"compress",value:function(e){return this.flags.compress=e,this}},{key:"volatile",get:function(){return this.flags.volatile=!0,this}},{key:"timeout",value:function(e){return this.flags.timeout=e,this}},{key:"onAny",value:function(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}},{key:"prependAny",value:function(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}},{key:"offAny",value:function(e){if(!this._anyListeners)return this;if(e){for(var t=this._anyListeners,n=0;n<t.length;n++)if(e===t[n])return t.splice(n,1),this}else this._anyListeners=[];return this}},{key:"listenersAny",value:function(){return this._anyListeners||[]}},{key:"onAnyOutgoing",value:function(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}},{key:"prependAnyOutgoing",value:function(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}},{key:"offAnyOutgoing",value:function(e){if(!this._anyOutgoingListeners)return this;if(e){for(var t=this._anyOutgoingListeners,n=0;n<t.length;n++)if(e===t[n])return t.splice(n,1),this}else this._anyOutgoingListeners=[];return this}},{key:"listenersAnyOutgoing",value:function(){return this._anyOutgoingListeners||[]}},{key:"notifyOutgoingListeners",value:function(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){var t,n=y(this._anyOutgoingListeners.slice());try{for(n.s();!(t=n.n()).done;){t.value.apply(this,e.data)}}catch(e){n.e(e)}finally{n.f()}}}}]),a}(U);function Ie(e){e=e||{},this.ms=e.min||100,this.max=e.max||1e4,this.factor=e.factor||2,this.jitter=e.jitter>0&&e.jitter<=1?e.jitter:0,this.attempts=0}Ie.prototype.duration=function(){var e=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var t=Math.random(),n=Math.floor(t*this.jitter*e);e=0==(1&Math.floor(10*t))?e-n:e+n}return 0|Math.min(e,this.max)},Ie.prototype.reset=function(){this.attempts=0},Ie.prototype.setMin=function(e){this.ms=e},Ie.prototype.setMax=function(e){this.max=e},Ie.prototype.setJitter=function(e){this.jitter=e};var Fe=function(n){o(s,n);var i=l(s);function s(n,r){var o,a;t(this,s),(o=i.call(this)).nsps={},o.subs=[],n&&"object"===e(n)&&(r=n,n=void 0),(r=r||{}).path=r.path||"/socket.io",o.opts=r,H(f(o),r),o.reconnection(!1!==r.reconnection),o.reconnectionAttempts(r.reconnectionAttempts||1/0),o.reconnectionDelay(r.reconnectionDelay||1e3),o.reconnectionDelayMax(r.reconnectionDelayMax||5e3),o.randomizationFactor(null!==(a=r.randomizationFactor)&&void 0!==a?a:.5),o.backoff=new Ie({min:o.reconnectionDelay(),max:o.reconnectionDelayMax(),jitter:o.randomizationFactor()}),o.timeout(null==r.timeout?2e4:r.timeout),o._readyState="closed",o.uri=n;var c=r.parser||je;return o.encoder=new c.Encoder,o.decoder=new c.Decoder,o._autoConnect=!1!==r.autoConnect,o._autoConnect&&o.open(),o}return r(s,[{key:"reconnection",value:function(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection}},{key:"reconnectionAttempts",value:function(e){return void 0===e?this._reconnectionAttempts:(this._reconnectionAttempts=e,this)}},{key:"reconnectionDelay",value:function(e){var t;return void 0===e?this._reconnectionDelay:(this._reconnectionDelay=e,null===(t=this.backoff)||void 0===t||t.setMin(e),this)}},{key:"randomizationFactor",value:function(e){var t;return void 0===e?this._randomizationFactor:(this._randomizationFactor=e,null===(t=this.backoff)||void 0===t||t.setJitter(e),this)}},{key:"reconnectionDelayMax",value:function(e){var t;return void 0===e?this._reconnectionDelayMax:(this._reconnectionDelayMax=e,null===(t=this.backoff)||void 0===t||t.setMax(e),this)}},{key:"timeout",value:function(e){return arguments.length?(this._timeout=e,this):this._timeout}},{key:"maybeReconnectOnOpen",value:function(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}},{key:"open",value:function(e){var t=this;if(~this._readyState.indexOf("open"))return this;this.engine=new ge(this.uri,this.opts);var n=this.engine,r=this;this._readyState="opening",this.skipReconnect=!1;var i=qe(n,"open",(function(){r.onopen(),e&&e()})),o=function(n){t.cleanup(),t._readyState="closed",t.emitReserved("error",n),e?e(n):t.maybeReconnectOnOpen()},s=qe(n,"error",o);if(!1!==this._timeout){var a=this._timeout,c=this.setTimeoutFn((function(){i(),o(new Error("timeout")),n.close()}),a);this.opts.autoUnref&&c.unref(),this.subs.push((function(){t.clearTimeoutFn(c)}))}return this.subs.push(i),this.subs.push(s),this}},{key:"connect",value:function(e){return this.open(e)}},{key:"onopen",value:function(){this.cleanup(),this._readyState="open",this.emitReserved("open");var e=this.engine;this.subs.push(qe(e,"ping",this.onping.bind(this)),qe(e,"data",this.ondata.bind(this)),qe(e,"error",this.onerror.bind(this)),qe(e,"close",this.onclose.bind(this)),qe(this.decoder,"decoded",this.ondecoded.bind(this)))}},{key:"onping",value:function(){this.emitReserved("ping")}},{key:"ondata",value:function(e){try{this.decoder.add(e)}catch(e){this.onclose("parse error",e)}}},{key:"ondecoded",value:function(e){var t=this;ce((function(){t.emitReserved("packet",e)}),this.setTimeoutFn)}},{key:"onerror",value:function(e){this.emitReserved("error",e)}},{key:"socket",value:function(e,t){var n=this.nsps[e];return n?this._autoConnect&&!n.active&&n.connect():(n=new Ue(this,e,t),this.nsps[e]=n),n}},{key:"_destroy",value:function(e){for(var t=0,n=Object.keys(this.nsps);t<n.length;t++){var r=n[t];if(this.nsps[r].active)return}this._close()}},{key:"_packet",value:function(e){for(var t=this.encoder.encode(e),n=0;n<t.length;n++)this.engine.write(t[n],e.options)}},{key:"cleanup",value:function(){this.subs.forEach((function(e){return e()})),this.subs.length=0,this.decoder.destroy()}},{key:"_close",value:function(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}},{key:"disconnect",value:function(){return this._close()}},{key:"onclose",value:function(e,t){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",e,t),this._reconnection&&!this.skipReconnect&&this.reconnect()}},{key:"reconnect",value:function(){var e=this;if(this._reconnecting||this.skipReconnect)return this;var t=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{var n=this.backoff.duration();this._reconnecting=!0;var r=this.setTimeoutFn((function(){t.skipReconnect||(e.emitReserved("reconnect_attempt",t.backoff.attempts),t.skipReconnect||t.open((function(n){n?(t._reconnecting=!1,t.reconnect(),e.emitReserved("reconnect_error",n)):t.onreconnect()})))}),n);this.opts.autoUnref&&r.unref(),this.subs.push((function(){e.clearTimeoutFn(r)}))}}},{key:"onreconnect",value:function(){var e=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",e)}}]),s}(U),Me={};function Ve(t,n){"object"===e(t)&&(n=t,t=void 0);var r,i=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",n=arguments.length>2?arguments[2]:void 0,r=e;n=n||"undefined"!=typeof location&&location,null==e&&(e=n.protocol+"//"+n.host),"string"==typeof e&&("/"===e.charAt(0)&&(e="/"===e.charAt(1)?n.protocol+e:n.host+e),/^(https?|wss?):\/\//.test(e)||(e=void 0!==n?n.protocol+"//"+e:"https://"+e),r=ve(e)),r.port||(/^(http|ws)$/.test(r.protocol)?r.port="80":/^(http|ws)s$/.test(r.protocol)&&(r.port="443")),r.path=r.path||"/";var i=-1!==r.host.indexOf(":")?"["+r.host+"]":r.host;return r.id=r.protocol+"://"+i+":"+r.port+t,r.href=r.protocol+"://"+i+(n&&n.port===r.port?"":":"+r.port),r}(t,(n=n||{}).path||"/socket.io"),o=i.source,s=i.id,a=i.path,c=Me[s]&&a in Me[s].nsps;return n.forceNew||n["force new connection"]||!1===n.multiplex||c?r=new Fe(o,n):(Me[s]||(Me[s]=new Fe(o,n)),r=Me[s]),i.query&&!n.query&&(n.query=i.queryKey),r.socket(i.path,n)}return i(Ve,{Manager:Fe,Socket:Ue,io:Ve,connect:Ve}),Ve}));
    7. 

  7. //# sourceMappingURL=socket.io.min.js.map
    8.