"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var t=require("../transport.js"),e=require("../contrib/yeast.js"),s=require("../../../../engine.io-parser/build/esm/index.js"),i=require("./xmlhttprequest.browser.js"),o=require("../../../../@socket.io/component-emitter/lib/esm/index.js"),r=require("../util.js"),n=require("../globalThis.browser.js");function a(){}const h=null!=new i.XHR({xdomain:!1}).responseType;class d extends t.Transport{constructor(t){if(super(t),this.polling=!1,"undefined"!=typeof location){const e="https:"===location.protocol;let s=location.port;s||(s=e?"443":"80"),this.xd="undefined"!=typeof location&&t.hostname!==location.hostname||s!==t.port}const e=t&&t.forceBase64;this.supportsBinary=h&&!e,this.opts.withCredentials&&(this.cookieJar=i.createCookieJar())}get name(){return"polling"}doOpen(){this.poll()}pause(t){this.readyState="pausing";const e=()=>{this.readyState="paused",t()};if(this.polling||!this.writable){let t=0;this.polling&&(t++,this.once("pollComplete",(function(){--t||e()}))),this.writable||(t++,this.once("drain",(function(){--t||e()})))}else e()}poll(){this.polling=!0,this.doPoll(),this.emitReserved("poll")}onData(t){s.decodePayload(t,this.socket.binaryType).forEach((t=>{if("opening"===this.readyState&&"open"===t.type&&this.onOpen(),"close"===t.type)return this.onClose({description:"transport closed by the server"}),!1;this.onPacket(t)})),"closed"!==this.readyState&&(this.polling=!1,this.emitReserved("pollComplete"),"open"===this.readyState&&this.poll())}doClose(){const t=()=>{this.write([{type:"close"}])};"open"===this.readyState?t():this.once("open",t)}write(t){this.writable=!1,s.encodePayload(t,(t=>{this.doWrite(t,(()=>{this.writable=!0,this.emitReserved("drain")}))}))}uri(){const t=this.opts.secure?"https":"http",s=this.query||{};return!1!==this.opts.timestampRequests&&(s[this.opts.timestampParam]=e.yeast()),this.supportsBinary||s.sid||(s.b64=1),this.createUri(t,s)}request(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return Object.assign(t,{xd:this.xd,cookieJar:this.cookieJar},this.opts),new l(this.uri(),t)}doWrite(t,e){const s=this.request({method:"POST",data:t});s.on("success",e),s.on("error",((t,e)=>{this.onError("xhr post error",t,e)}))}doPoll(){const t=this.request();t.on("data",this.onData.bind(this)),t.on("error",((t,e)=>{this.onError("xhr poll error",t,e)})),this.pollXhr=t}}class l extends o.Emitter{constructor(t,e){super(),r.installTimerFunctions(this,e),this.opts=e,this.method=e.method||"GET",this.uri=t,this.data=void 0!==e.data?e.data:null,this.create()}create(){var t;const e=r.pick(this.opts,"agent","pfx","key","passphrase","cert","ca","ciphers","rejectUnauthorized","autoUnref");e.xdomain=!!this.opts.xd;const s=this.xhr=new i.XHR(e);try{s.open(this.method,this.uri,!0);try{if(this.opts.extraHeaders){s.setDisableHeaderCheck&&s.setDisableHeaderCheck(!0);for(let t in this.opts.extraHeaders)this.opts.extraHeaders.hasOwnProperty(t)&&s.setRequestHeader(t,this.opts.extraHeaders[t])}}catch(t){}if("POST"===this.method)try{s.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(t){}try{s.setRequestHeader("Accept","*/*")}catch(t){}null===(t=this.opts.cookieJar)||void 0===t||t.addCookies(s),"withCredentials"in s&&(s.withCredentials=this.opts.withCredentials),this.opts.requestTimeout&&(s.timeout=this.opts.requestTimeout),s.onreadystatechange=()=>{var t;3===s.readyState&&(null===(t=this.opts.cookieJar)||void 0===t||t.parseCookies(s)),4===s.readyState&&(200===s.status||1223===s.status?this.onLoad():this.setTimeoutFn((()=>{this.onError("number"==typeof s.status?s.status:0)}),0))},s.send(this.data)}catch(t){return void this.setTimeoutFn((()=>{this.onError(t)}),0)}"undefined"!=typeof document&&(this.index=l.requestsCount++,l.requests[this.index]=this)}onError(t){this.emitReserved("error",t,this.xhr),this.cleanup(!0)}cleanup(t){if(void 0!==this.xhr&&null!==this.xhr){if(this.xhr.onreadystatechange=a,t)try{this.xhr.abort()}catch(t){}"undefined"!=typeof document&&delete l.requests[this.index],this.xhr=null}}onLoad(){const t=this.xhr.responseText;null!==t&&(this.emitReserved("data",t),this.emitReserved("success"),this.cleanup())}abort(){this.cleanup()}}if(l.requestsCount=0,l.requests={},"undefined"!=typeof document)if("function"==typeof attachEvent)attachEvent("onunload",p);else if("function"==typeof addEventListener){const t="onpagehide"in n.globalThisShim?"pagehide":"unload";addEventListener(t,p,!1)}function p(){for(let t in l.requests)l.requests.hasOwnProperty(t)&&l.requests[t].abort()}exports.Polling=d,exports.Request=l;
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