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this.id,a(h(f.prototype),"emit",this).call(this,"disconnect",t)}},{key:"onpacket",value:function(t){if(t.nsp===this.nsp)switch(t.type){case p.PacketType.CONNECT:if(t.data&&t.data.sid){var e=t.data.sid;this.onconnect(e)}else a(h(f.prototype),"emit",this).call(this,"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 p.PacketType.EVENT:case p.PacketType.BINARY_EVENT:this.onevent(t);break;case p.PacketType.ACK:case p.PacketType.BINARY_ACK:this.onack(t);break;case p.PacketType.DISCONNECT:this.ondisconnect();break;case p.PacketType.CONNECT_ERROR:var n=new Error(t.data.message);n.data=t.data.data,a(h(f.prototype),"emit",this).call(this,"connect_error",n)}}},{key:"onevent",value:function(t){var e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}},{key:"emitEvent",value:function(t){if(this._anyListeners&&this._anyListeners.length){var e,n=o(this._anyListeners.slice());try{for(n.s();!(e=n.n()).done;)e.value.apply(this,t)}catch(t){n.e(t)}finally{n.f()}}a(h(f.prototype),"emit",this).apply(this,t)}},{key:"ack",value:function(t){var e=this,n=!1;return function(){if(!n){n=!0;for(var r=arguments.length,o=new Array(r),i=0;i<r;i++)o[i]=arguments[i];e.packet({type:p.PacketType.ACK,id:t,data:o})}}}},{key:"onack",value:function(t){var e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}},{key:"onconnect",value:function(t){this.id=t,this.connected=!0,this.disconnected=!1,a(h(f.prototype),"emit",this).call(this,"connect"),this.emitBuffered()}},{key:"emitBuffered",value:function(){var t=this;this.receiveBuffer.forEach((function(e){return t.emitEvent(e)})),this.receiveBuffer=[],this.sendBuffer.forEach((function(e){return t.packet(e)})),this.sendBuffer=[]}},{key:"ondisconnect",value:function(){this.destroy(),this.onclose("io server disconnect")}},{key:"destroy",value:function(){this.subs&&(this.subs.forEach((function(t){return t()})),this.subs=void 0),this.io._destroy(this)}},{key:"disconnect",value:function(){return this.connected&&this.packet({type:p.PacketType.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}},{key:"close",value:function(){return this.disconnect()}},{key:"compress",value:function(t){return this.flags.compress=t,this}},{key:"onAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}},{key:"prependAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}},{key:"offAny",value:function(t){if(!this._anyListeners)return this;if(t){for(var 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location&&location.port?location.port:e.secure?443:80),e.transports=n.transports||["polling","websocket"],e.readyState="",e.writeBuffer=[],e.prevBufferLen=0,e.opts=r({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,jsonp:!0,timestampParam:"t",rememberUpgrade:!1,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{}},n),e.opts.path=e.opts.path.replace(/\/$/,"")+"/","string"==typeof e.opts.query&&(e.opts.query=d.decode(e.opts.query)),e.id=null,e.upgrades=null,e.pingInterval=null,e.pingTimeout=null,e.pingTimeoutTimer=null,"function"==typeof addEventListener&&addEventListener("beforeunload",(function(){e.transport&&(e.transport.removeAllListeners(),e.transport.close())}),!1),e.open(),e}return e=p,(n=[{key:"createTransport",value:function(t){var e=function(t){var e={};for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e}(this.opts.query);e.EIO=l.protocol,e.transport=t,this.id&&(e.sid=this.id);var n=r({},this.opts.transportOptions[t],this.opts,{query:e,socket:this,hostname:this.hostname,secure:this.secure,port:this.port});return new h[t](n)}},{key:"open",value:function(){var t;if(this.opts.rememberUpgrade&&p.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))t="websocket";else{if(0===this.transports.length){var e=this;return void setTimeout((function(){e.emit("error","No transports available")}),0)}t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)}},{key:"setTransport",value:function(t){var e=this;this.transport&&this.transport.removeAllListeners(),this.transport=t,t.on("drain",(function(){e.onDrain()})).on("packet",(function(t){e.onPacket(t)})).on("error",(function(t){e.onError(t)})).on("close",(function(){e.onClose("transport close")}))}},{key:"probe",value:function(t){var e=this.createTransport(t,{probe:1}),n=!1,r=this;function o(){if(r.onlyBinaryUpgrades){var t=!this.supportsBinary&&r.transport.supportsBinary;n=n||t}n||(e.send([{type:"ping",data:"probe"}]),e.once("packet",(function(t){if(!n)if("pong"===t.type&&"probe"===t.data){if(r.upgrading=!0,r.emit("upgrading",e),!e)return;p.priorWebsocketSuccess="websocket"===e.name,r.transport.pause((function(){n||"closed"!==r.readyState&&(f(),r.setTransport(e),e.send([{type:"upgrade"}]),r.emit("upgrade",e),e=null,r.upgrading=!1,r.flush())}))}else{var o=new Error("probe error");o.transport=e.name,r.emit("upgradeError",o)}})))}function i(){n||(n=!0,f(),e.close(),e=null)}function s(t){var n=new Error("probe error: "+t);n.transport=e.name,i(),r.emit("upgradeError",n)}function a(){s("transport closed")}function c(){s("socket closed")}function u(t){e&&t.name!==e.name&&i()}function f(){e.removeListener("open",o),e.removeListener("error",s),e.removeListener("close",a),r.removeListener("close",c),r.removeListener("upgrading",u)}p.priorWebsocketSuccess=!1,e.once("open",o),e.once("error",s),e.once("close",a),this.once("close",c),this.once("upgrading",u),e.open()}},{key:"onOpen",value:function(){if(this.readyState="open",p.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.opts.upgrade&&this.transport.pause)for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},{key:"onPacket",value:function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"ping":this.resetPingTimeout(),this.sendPacket("pong"),this.emit("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}}},{key:"onHandshake",value:function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!==this.readyState&&this.resetPingTimeout()}},{key:"resetPingTimeout",value:function(){var t=this;clearTimeout(this.pingTimeoutTimer),this.pingTimeoutTimer=setTimeout((function(){t.onClose("ping 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c=Math.floor(p/Math.pow(2,32)),u=p>>>0,e.push(215,0,c>>24,c>>16,c>>8,c,u>>24,u>>16,u>>8,u),10}if(o instanceof ArrayBuffer){if((f=o.byteLength)<256)e.push(196,f),h=2;else if(f<65536)e.push(197,f>>8,f),h=3;else{if(!(f<4294967296))throw new Error("Buffer too large");e.push(198,f>>24,f>>16,f>>8,f),h=5}return n.push({_bin:o,_length:f,_offset:e.length}),h+f}if("function"==typeof o.toJSON)return t(e,n,o.toJSON());var l=[],y="",d=Object.keys(o);for(s=0,a=d.length;s<a;s++)"function"!=typeof o[y=d[s]]&&l.push(y);if((f=l.length)<16)e.push(128|f),h=1;else if(f<65536)e.push(222,f>>8,f),h=3;else{if(!(f<4294967296))throw new Error("Object too large");e.push(223,f>>24,f>>16,f>>8,f),h=5}for(s=0;s<f;s++)h+=t(e,n,y=l[s]),h+=t(e,n,o[y]);return h}if("boolean"===i)return e.push(o?195:194),1;if("undefined"===i)return e.push(212,0,0),3;throw new Error("Could not encode")}(e,n,t),s=new ArrayBuffer(i),a=new DataView(s),c=0,u=0,f=-1;n.length>0&&(f=n[0]._offset);for(var h,p=0,l=0,y=0,d=e.length;y<d;y++)if(a.setUint8(u+y,e[y]),y+1===f){if(p=(h=n[c])._length,l=u+f,h._bin)for(var v=new Uint8Array(h._bin),b=0;b<p;b++)a.setUint8(l+b,v[b]);else h._str?o(a,l,h._str):void 0!==h._float&&a.setFloat64(l,h._float);u+=p,n[++c]&&(f=n[c]._offset)}return s}},function(t,e,n){"use strict";function r(t){if(this._offset=0,t instanceof ArrayBuffer)this._buffer=t,this._view=new DataView(this._buffer);else{if(!ArrayBuffer.isView(t))throw new Error("Invalid argument");this._buffer=t.buffer,this._view=new DataView(this._buffer,t.byteOffset,t.byteLength)}}r.prototype._array=function(t){for(var e=new Array(t),n=0;n<t;n++)e[n]=this._parse();return e},r.prototype._map=function(t){for(var e={},n=0;n<t;n++)e[this._parse()]=this._parse();return e},r.prototype._str=function(t){var e=function(t,e,n){for(var r="",o=0,i=e,s=e+n;i<s;i++){var a=t.getUint8(i);if(0!=(128&a))if(192!=(224&a))if(224!=(240&a)){if(240!=(248&a))throw new Error("Invalid byte "+a.toString(16));(o=(7&a)<<18|(63&t.getUint8(++i))<<12|(63&t.getUint8(++i))<<6|(63&t.getUint8(++i))<<0)>=65536?(o-=65536,r+=String.fromCharCode(55296+(o>>>10),56320+(1023&o))):r+=String.fromCharCode(o)}else r+=String.fromCharCode((15&a)<<12|(63&t.getUint8(++i))<<6|(63&t.getUint8(++i))<<0);else r+=String.fromCharCode((31&a)<<6|63&t.getUint8(++i));else r+=String.fromCharCode(a)}return r}(this._view,this._offset,t);return this._offset+=t,e},r.prototype._bin=function(t){var e=this._buffer.slice(this._offset,this._offset+t);return this._offset+=t,e},r.prototype._parse=function(){var t,e=this._view.getUint8(this._offset++),n=0,r=0,o=0,i=0;if(e<192)return e<128?e:e<144?this._map(15&e):e<160?this._array(15&e):this._str(31&e);if(e>223)return-1*(255-e+1);switch(e){case 192:return null;case 194:return!1;case 195:return!0;case 196:return n=this._view.getUint8(this._offset),this._offset+=1,this._bin(n);case 197:return n=this._view.getUint16(this._offset),this._offset+=2,this._bin(n);case 198:return n=this._view.getUint32(this._offset),this._offset+=4,this._bin(n);case 199:return n=this._view.getUint8(this._offset),r=this._view.getInt8(this._offset+1),this._offset+=2,[r,this._bin(n)];case 200:return n=this._view.getUint16(this._offset),r=this._view.getInt8(this._offset+2),this._offset+=3,[r,this._bin(n)];case 201:return n=this._view.getUint32(this._offset),r=this._view.getInt8(this._offset+4),this._offset+=5,[r,this._bin(n)];case 202:return t=this._view.getFloat32(this._offset),this._offset+=4,t;case 203:return t=this._view.getFloat64(this._offset),this._offset+=8,t;case 204:return t=this._view.getUint8(this._offset),this._offset+=1,t;case 205:return t=this._view.getUint16(this._offset),this._offset+=2,t;case 206:return t=this._view.getUint32(this._offset),this._offset+=4,t;case 207:return o=this._view.getUint32(this._offset)*Math.pow(2,32),i=this._view.getUint32(this._offset+4),this._offset+=8,o+i;case 208:return t=this._view.getInt8(this._offset),this._offset+=1,t;case 209:return t=this._view.getInt16(this._offset),this._offset+=2,t;case 210:return t=this._view.getInt32(this._offset),this._offset+=4,t;case 211:return o=this._view.getInt32(this._offset)*Math.pow(2,32),i=this._view.getUint32(this._offset+4),this._offset+=8,o+i;case 212:return r=this._view.getInt8(this._offset),this._offset+=1,0===r?void(this._offset+=1):[r,this._bin(1)];case 213:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(2)];case 214:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(4)];case 215:return r=this._view.getInt8(this._offset),this._offset+=1,0===r?(o=this._view.getInt32(this._offset)*Math.pow(2,32),i=this._view.getUint32(this._offset+4),this._offset+=8,new Date(o+i)):[r,this._bin(8)];case 216:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(16)];case 217:return n=this._view.getUint8(this._offset),this._offset+=1,this._str(n);case 218:return n=this._view.getUint16(this._offset),this._offset+=2,this._str(n);case 219:return n=this._view.getUint32(this._offset),this._offset+=4,this._str(n);case 220:return n=this._view.getUint16(this._offset),this._offset+=2,this._array(n);case 221:return n=this._view.getUint32(this._offset),this._offset+=4,this._array(n);case 222:return n=this._view.getUint16(this._offset),this._offset+=2,this._map(n);case 223:return n=this._view.getUint32(this._offset),this._offset+=4,this._map(n)}throw new Error("Could not parse")},t.exports=function(t){var e=new r(t),n=e._parse();if(e._offset!==t.byteLength)throw new Error(t.byteLength-e._offset+" trailing bytes");return n}},function(t,e){function n(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}t.exports=n,n.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},n.prototype.reset=function(){this.attempts=0},n.prototype.setMin=function(t){this.ms=t},n.prototype.setMax=function(t){this.max=t},n.prototype.setJitter=function(t){this.jitter=t}}])}));
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