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7 lines
20 KiB
7 lines
20 KiB
/*! |
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* Engine.IO v6.2.3 |
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* (c) 2014-2022 Guillermo Rauch |
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* Released under the MIT License. |
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*/ |
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const t=Object.create(null);t.open="0",t.close="1",t.ping="2",t.pong="3",t.message="4",t.upgrade="5",t.noop="6";const e=Object.create(null);Object.keys(t).forEach((s=>{e[t[s]]=s}));const s={type:"error",data:"parser error"},r="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===Object.prototype.toString.call(Blob),o="function"==typeof ArrayBuffer,i=({type:e,data:s},i,a)=>{return r&&s instanceof Blob?i?a(s):n(s,a):o&&(s instanceof ArrayBuffer||(h=s,"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(h):h&&h.buffer instanceof ArrayBuffer))?i?a(s):n(new Blob([s]),a):a(t[e]+(s||""));var h},n=(t,e)=>{const s=new FileReader;return s.onload=function(){const t=s.result.split(",")[1];e("b"+t)},s.readAsDataURL(t)};for(var a="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",h="undefined"==typeof Uint8Array?[]:new Uint8Array(256),p=0;p<a.length;p++)h[a.charCodeAt(p)]=p;const c="function"==typeof ArrayBuffer,l=(t,r)=>{if("string"!=typeof 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t=this.getWritablePackets();this.transport.send(t),this.prevBufferLen=t.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let s=0;s<this.writeBuffer.length;s++){const r=this.writeBuffer[s].data;if(r&&(t+="string"==typeof(e=r)?function(t){let e=0,s=0;for(let r=0,o=t.length;r<o;r++)e=t.charCodeAt(r),e<128?s+=1:e<2048?s+=2:e<55296||e>=57344?s+=3:(r++,s+=4);return s}(e):Math.ceil(1.33*(e.byteLength||e.size))),s>0&&t>this.maxPayload)return this.writeBuffer.slice(0,s);t+=2}var e;return this.writeBuffer}write(t,e,s){return this.sendPacket("message",t,e,s),this}send(t,e,s){return this.sendPacket("message",t,e,s),this}sendPacket(t,e,s,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof s&&(r=s,s=null),"closing"===this.readyState||"closed"===this.readyState)return;(s=s||{}).compress=!1!==s.compress;const o={type:t,data:e,options:s};this.emitReserved("packetCreate",o),this.writeBuffer.push(o),r&&this.once("flush",r),this.flush()}close(){const t=()=>{this.onClose("forced 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){$.priorWebsocketSuccess=!1,this.emitReserved("error",t),this.onClose("transport error",t)}onClose(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),"function"==typeof removeEventListener&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(t){const e=[];let s=0;const r=t.length;for(;s<r;s++)~this.transports.indexOf(t[s])&&e.push(t[s]);return e}}$.protocol=4;const z=$.protocol;export{$ as Socket,x as Transport,w as installTimerFunctions,F as nextTick,X as parse,z as protocol,M as transports}; |
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