4 lines
67 KiB
JavaScript
4 lines
67 KiB
JavaScript
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i=t("./transports"),s=t("component-emitter"),a=t("debug")("engine.io-client:socket"),c=t("indexof"),u=t("engine.io-parser"),p=t("parseuri"),f=t("parsejson"),h=t("parseqs");e.exports=r,r.priorWebsocketSuccess=!1,s(r.prototype),r.protocol=u.protocol,r.Socket=r,r.Transport=t("./transport"),r.transports=t("./transports"),r.parser=t("engine.io-parser"),r.prototype.createTransport=function(t){a('creating transport "%s"',t);var e=o(this.query);e.EIO=u.protocol,e.transport=t,this.id&&(e.sid=this.id);var n=new i[t]({agent:this.agent,hostname:this.hostname,port:this.port,secure:this.secure,path:this.path,query:e,forceJSONP:this.forceJSONP,jsonp:this.jsonp,forceBase64:this.forceBase64,enablesXDR:this.enablesXDR,timestampRequests:this.timestampRequests,timestampParam:this.timestampParam,policyPort:this.policyPort,socket:this,pfx:this.pfx,key:this.key,passphrase:this.passphrase,cert:this.cert,ca:this.ca,ciphers:this.ciphers,rejectUnauthorized:this.rejectUnauthorized});return n},r.prototype.open=function(){var t;if(this.rememberUpgrade&&r.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";var t;try{t=this.createTransport(t)}catch(n){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},r.prototype.setTransport=function(t){a("setting transport %s",t.name);var e=this;this.transport&&(a("clearing existing transport %s",this.transport.name),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")})},r.prototype.probe=function(t){function e(){if(h.onlyBinaryUpgrades){var e=!this.supportsBinary&&h.transport.supportsBinary;f=f||e}f||(a('probe transport "%s" opened',t),p.send([{type:"ping",data:"probe"}]),p.once("packet",function(e){if(!f)if("pong"==e.type&&"probe"==e.data){if(a('probe transport "%s" pong',t),h.upgrading=!0,h.emit("upgrading",p),!p)return;r.priorWebsocketSuccess="websocket"==p.name,a('pausing current transport "%s"',h.transport.name),h.transport.pause(function(){f||"closed"!=h.readyState&&(a("changing transport and sending upgrade packet"),u(),h.setTransport(p),p.send([{type:"upgrade"}]),h.emit("upgrade",p),p=null,h.upgrading=!1,h.flush())})}else{a('probe transport "%s" failed',t);var n=new Error("probe error");n.transport=p.name,h.emit("upgradeError",n)}}))}function n(){f||(f=!0,u(),p.close(),p=null)}function o(e){var r=new Error("probe error: "+e);r.transport=p.name,n(),a('probe transport "%s" failed because of error: %s',t,e),h.emit("upgradeError",r)}function i(){o("transport closed")}function s(){o("socket closed")}function c(t){p&&t.name!=p.name&&(a('"%s" works - aborting "%s"',t.name,p.name),n())}function u(){p.removeListener("open",e),p.removeListener("error",o),p.removeListener("close",i),h.removeListener("close",s),h.removeListener("upgrading",c)}a('probing transport "%s"',t);var p=this.createTransport(t,{probe:1}),f=!1,h=this;r.priorWebsocketSuccess=!1,p.once("open",e),p.once("error",o),p.once("close",i),this.once("close",s),this.once("upgrading",c),p.open()},r.prototype.onOpen=function(){if(a("socket open"),this.readyState="open",r.priorWebsocketSuccess="websocket"==this.transport.name,this.emit("open"),this.flush(),"open"==this.readyState&&this.upgrade&&this.transport.pause){a("starting upgrade probes");for(var t=0,e=this.upgrades.length;e>t;t++)this.probe(this.upgrades[t])}},r.prototype.onPacket=function(t){if("opening"==this.readyState||"open"==this.readyState)switch(a('socket receive: type "%s", data "%s"',t.type,t.data),this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(f(t.data));break;case"pong":this.setPing();break;case"error":var e=new Error("server error");e.code=t.data,this.emit("error",e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}else a('packet received with socket readyState "%s"',this.readyState)},r.prototype.onHandshake=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.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},r.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!=e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},r.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){a("writing ping packet - expecting pong within 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r={type:t,data:e};this.emit("packetCreate",r),this.writeBuffer.push(r),this.callbackBuffer.push(n),this.flush()}},r.prototype.close=function(){function t(){r.onClose("forced close"),a("socket closing - telling transport to close"),r.transport.close()}function e(){r.removeListener("upgrade",e),r.removeListener("upgradeError",e),t()}function n(){r.once("upgrade",e),r.once("upgradeError",e)}if("opening"==this.readyState||"open"==this.readyState){this.readyState="closing";var r=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?n():t()}):this.upgrading?n():t()}return this},r.prototype.onError=function(t){a("socket error %j",t),r.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},r.prototype.onClose=function(t,e){if("opening"==this.readyState||"open"==this.readyState||"closing"==this.readyState){a('socket close with reason: "%s"',t);var n=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),setTimeout(function(){n.writeBuffer=[],n.callbackBuffer=[],n.prevBufferLen=0},0),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e)}},r.prototype.filterUpgrades=function(t){for(var e=[],n=0,r=t.length;r>n;n++)~c(this.transports,t[n])&&e.push(t[n]);return e}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./transport":13,"./transports":14,"component-emitter":7,debug:20,"engine.io-parser":23,indexof:28,parsejson:33,parseqs:34,parseuri:22}],13:[function(t,e,n){function r(t){this.path=t.path,this.hostname=t.hostname,this.port=t.port,this.secure=t.secure,this.query=t.query,this.timestampParam=t.timestampParam,this.timestampRequests=t.timestampRequests,this.readyState="",this.agent=t.agent||!1,this.socket=t.socket,this.enablesXDR=t.enablesXDR,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized}var o=t("engine.io-parser"),i=t("component-emitter");e.exports=r,i(r.prototype),r.timestamps=0,r.prototype.onError=function(t,e){var n=new Error(t);return n.type="TransportError",n.description=e,this.emit("error",n),this},r.prototype.open=function(){return("closed"==this.readyState||""==this.readyState)&&(this.readyState="opening",this.doOpen()),this},r.prototype.close=function(){return("opening"==this.readyState||"open"==this.readyState)&&(this.doClose(),this.onClose()),this},r.prototype.send=function(t){if("open"!=this.readyState)throw new Error("Transport 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t=this,e=document.createElement("script");this.script&&(this.script.parentNode.removeChild(this.script),this.script=null),e.async=!0,e.src=this.uri(),e.onerror=function(e){t.onError("jsonp poll error",e)};var n=document.getElementsByTagName("script")[0];n.parentNode.insertBefore(e,n),this.script=e;var r="undefined"!=typeof navigator&&/gecko/i.test(navigator.userAgent);r&&setTimeout(function(){var t=document.createElement("iframe");document.body.appendChild(t),document.body.removeChild(t)},100)},o.prototype.doWrite=function(t,e){function n(){r(),e()}function r(){if(o.iframe)try{o.form.removeChild(o.iframe)}catch(t){o.onError("jsonp polling iframe removal error",t)}try{var e='<iframe src="javascript:0" name="'+o.iframeId+'">';i=document.createElement(e)}catch(t){i=document.createElement("iframe"),i.name=o.iframeId,i.src="javascript:0"}i.id=o.iframeId,o.form.appendChild(i),o.iframe=i}var o=this;if(!this.form){var i,s=document.createElement("form"),a=document.createElement("textarea"),p=this.iframeId="eio_iframe_"+this.index;s.className="socketio",s.style.position="absolute",s.style.top="-1000px",s.style.left="-1000px",s.target=p,s.method="POST",s.setAttribute("accept-charset","utf-8"),a.name="d",s.appendChild(a),document.body.appendChild(s),this.form=s,this.area=a}this.form.action=this.uri(),r(),t=t.replace(u,"\\\n"),this.area.value=t.replace(c,"\\n");try{this.form.submit()}catch(f){}this.iframe.attachEvent?this.iframe.onreadystatechange=function(){"complete"==o.iframe.readyState&&n()}:this.iframe.onload=n}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./polling":17,"component-inherit":8}],16:[function(t,e,n){(function(n){function r(){}function o(t){if(c.call(this,t),n.location){var e="https:"==location.protocol,r=location.port;r||(r=e?443:80),this.xd=t.hostname!=n.location.hostname||r!=t.port,this.xs=t.secure!=e}}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!=t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=t("xmlhttprequest"),c=t("./polling"),u=t("component-emitter"),p=t("component-inherit"),f=t("debug")("engine.io-client:polling-xhr");e.exports=o,e.exports.Request=i,p(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return 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e=this.xhr=new a(t),r=this;try{if(f("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async),this.supportsBinary&&(e.responseType="arraybuffer"),"POST"==this.method)try{this.isBinary?e.setRequestHeader("Content-type","application/octet-stream"):e.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(o){}"withCredentials"in e&&(e.withCredentials=!0),this.hasXDR()?(e.onload=function(){r.onLoad()},e.onerror=function(){r.onError(e.responseText)}):e.onreadystatechange=function(){4==e.readyState&&(200==e.status||1223==e.status?r.onLoad():setTimeout(function(){r.onError(e.status)},0))},f("xhr data %s",this.data),e.send(this.data)}catch(o){return void 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e=this;"open"==this.readyState?(c("transport open - closing"),t()):(c("transport not open - deferring close"),this.once("open",t))},r.prototype.write=function(t){var e=this;this.writable=!1;var n=function(){e.writable=!0,e.emit("drain")},e=this;s.encodePayload(t,this.supportsBinary,function(t){e.doWrite(t,n)})},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"https":"http",n="";return!1!==this.timestampRequests&&(t[this.timestampParam]=+new Date+"-"+o.timestamps++),this.supportsBinary||t.sid||(t.b64=1),t=i.encode(t),this.port&&("https"==e&&443!=this.port||"http"==e&&80!=this.port)&&(n=":"+this.port),t.length&&(t="?"+t),e+"://"+this.hostname+n+this.path+t}},{"../transport":13,"component-inherit":8,debug:20,"engine.io-parser":23,parseqs:34,xmlhttprequest:19}],18:[function(t,e,n){function r(t){var e=t&&t.forceBase64;e&&(this.supportsBinary=!1),o.call(this,t)}var o=t("../transport"),i=t("engine.io-parser"),s=t("parseqs"),a=t("component-inherit"),c=t("debug")("engine.io-client:websocket"),u=t("ws");e.exports=r,a(r,o),r.prototype.name="websocket",r.prototype.supportsBinary=!0,r.prototype.doOpen=function(){if(this.check()){var t=this.uri(),e=void 0,n={agent:this.agent};n.pfx=this.pfx,n.key=this.key,n.passphrase=this.passphrase,n.cert=this.cert,n.ca=this.ca,n.ciphers=this.ciphers,n.rejectUnauthorized=this.rejectUnauthorized,this.ws=new u(t,e,n),void 0===this.ws.binaryType&&(this.supportsBinary=!1),this.ws.binaryType="arraybuffer",this.addEventListeners()}},r.prototype.addEventListeners=function(){var t=this;this.ws.onopen=function(){t.onOpen()},this.ws.onclose=function(){t.onClose()},this.ws.onmessage=function(e){t.onData(e.data)},this.ws.onerror=function(e){t.onError("websocket error",e)}},"undefined"!=typeof navigator&&/iPad|iPhone|iPod/i.test(navigator.userAgent)&&(r.prototype.onData=function(t){var e=this;setTimeout(function(){o.prototype.onData.call(e,t)},0)}),r.prototype.write=function(t){function e(){n.writable=!0,n.emit("drain")}var n=this;this.writable=!1;for(var r=0,o=t.length;o>r;r++)i.encodePacket(t[r],this.supportsBinary,function(t){try{n.ws.send(t)}catch(e){c("websocket closed before onclose event")}});setTimeout(e,0)},r.prototype.onClose=function(){o.prototype.onClose.call(this)},r.prototype.doClose=function(){"undefined"!=typeof this.ws&&this.ws.close()},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"wss":"ws",n="";return this.port&&("wss"==e&&443!=this.port||"ws"==e&&80!=this.port)&&(n=":"+this.port),this.timestampRequests&&(t[this.timestampParam]=+new Date),this.supportsBinary||(t.b64=1),t=s.encode(t),t.length&&(t="?"+t),e+"://"+this.hostname+n+this.path+t},r.prototype.check=function(){return!(!u||"__initialize"in u&&this.name===r.prototype.name)}},{"../transport":13,"component-inherit":8,debug:20,"engine.io-parser":23,parseqs:34,ws:47}],19:[function(t,e,n){var r=t("has-cors");e.exports=function(t){var e=t.xdomain,n=t.xscheme,o=t.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!e||r))return new XMLHttpRequest}catch(i){}try{if("undefined"!=typeof XDomainRequest&&!n&&o)return new XDomainRequest}catch(i){}if(!e)try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(i){}}},{"has-cors":27}],20:[function(t,e,n){function r(){return"WebkitAppearance"in document.documentElement.style||window.console&&(console.firebug||console.exception&&console.table)||navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)&&parseInt(RegExp.$1,10)>=31}function o(){var t=arguments,e=this.useColors;if(t[0]=(e?"%c":"")+this.namespace+(e?" %c":" ")+t[0]+(e?"%c ":" ")+"+"+n.humanize(this.diff),!e)return t;var r="color: "+this.color;t=[t[0],r,"color: inherit"].concat(Array.prototype.slice.call(t,1));var 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u,p=0},{ms:31}],22:[function(t,e,n){var r=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,o=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];e.exports=function(t){var e=t,n=t.indexOf("["),i=t.indexOf("]");-1!=n&&-1!=i&&(t=t.substring(0,n)+t.substring(n,i).replace(/:/g,";")+t.substring(i,t.length));for(var s=r.exec(t||""),a={},c=14;c--;)a[o[c]]=s[c]||"";return-1!=n&&-1!=i&&(a.source=e,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a}},{}],23:[function(t,e,n){(function(e){function r(t,e){var r="b"+n.packets[t.type]+t.data.data;return e(r)}function o(t,e,r){if(!e)return n.encodeBase64Packet(t,r);var o=t.data,i=new Uint8Array(o),s=new Uint8Array(1+o.byteLength);s[0]=m[t.type];for(var a=0;a<i.length;a++)s[a+1]=i[a];return r(s.buffer)}function i(t,e,r){if(!e)return n.encodeBase64Packet(t,r);var o=new FileReader;return o.onload=function(){t.data=o.result,n.encodePacket(t,e,!0,r)},o.readAsArrayBuffer(t.data)}function s(t,e,r){if(!e)return n.encodeBase64Packet(t,r);if(g)return i(t,e,r);var o=new Uint8Array(1);o[0]=m[t.type];var s=new w([o.buffer,t.data]);return r(s)}function a(t,e,n){for(var r=new Array(t.length),o=h(t.length,n),i=function(t,n,o){
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e(n,function(e,n){r[t]=n,o(e,r)})},s=0;s<t.length;s++)i(s,t[s],o)}var c=t("./keys"),u=t("has-binary"),p=t("arraybuffer.slice"),f=t("base64-arraybuffer"),h=t("after"),l=t("utf8"),d=navigator.userAgent.match(/Android/i),y=/PhantomJS/i.test(navigator.userAgent),g=d||y;n.protocol=3;var m=n.packets={open:0,close:1,ping:2,pong:3,message:4,upgrade:5,noop:6},v=c(m),b={type:"error",data:"parser error"},w=t("blob");n.encodePacket=function(t,n,i,a){"function"==typeof n&&(a=n,n=!1),"function"==typeof i&&(a=i,i=null);var c=void 0===t.data?void 0:t.data.buffer||t.data;if(e.ArrayBuffer&&c instanceof ArrayBuffer)return o(t,n,a);if(w&&c instanceof e.Blob)return s(t,n,a);if(c&&c.base64)return r(t,a);var u=m[t.type];return void 0!==t.data&&(u+=i?l.encode(String(t.data)):String(t.data)),a(""+u)},n.encodeBase64Packet=function(t,r){var o="b"+n.packets[t.type];if(w&&t.data instanceof w){var i=new FileReader;return i.onload=function(){var t=i.result.split(",")[1];r(o+t)},i.readAsDataURL(t.data)}var s;try{s=String.fromCharCode.apply(null,new Uint8Array(t.data))}catch(a){for(var c=new Uint8Array(t.data),u=new Array(c.length),p=0;p<c.length;p++)u[p]=c[p];s=String.fromCharCode.apply(null,u)}return o+=e.btoa(s),r(o)},n.decodePacket=function(t,e,r){if("string"==typeof t||void 0===t){if("b"==t.charAt(0))return n.decodeBase64Packet(t.substr(1),e);if(r)try{t=l.decode(t)}catch(o){return b}var i=t.charAt(0);return Number(i)==i&&v[i]?t.length>1?{type:v[i],data:t.substring(1)}:{type:v[i]}:b}var s=new Uint8Array(t),i=s[0],a=p(t,1);return w&&"blob"===e&&(a=new w([a])),{type:v[i],data:a}},n.decodeBase64Packet=function(t,n){var r=v[t.charAt(0)];if(!e.ArrayBuffer)return{type:r,data:{base64:!0,data:t.substr(1)}};var o=f.decode(t.substr(1));return"blob"===n&&w&&(o=new w([o])),{type:r,data:o}},n.encodePayload=function(t,e,r){function o(t){return t.length+":"+t}function i(t,r){n.encodePacket(t,s?e:!1,!0,function(t){r(null,o(t))})}"function"==typeof e&&(r=e,e=null);var s=u(t);return e&&s?w&&!g?n.encodePayloadAsBlob(t,r):n.encodePayloadAsArrayBuffer(t,r):t.length?void a(t,i,function(t,e){return r(e.join(""))}):r("0:")},n.decodePayload=function(t,e,r){if("string"!=typeof t)return n.decodePayloadAsBinary(t,e,r);"function"==typeof e&&(r=e,e=null);var o;if(""==t)return r(b,0,1);for(var i,s,a="",c=0,u=t.length;u>c;c++){var p=t.charAt(c);if(":"!=p)a+=p;else{if(""==a||a!=(i=Number(a)))return r(b,0,1);if(s=t.substr(c+1,i),a!=s.length)return r(b,0,1);if(s.length){if(o=n.decodePacket(s,e,!0),b.type==o.type&&b.data==o.data)return r(b,0,1);var f=r(o,c+i,u);if(!1===f)return}c+=i,a=""}}return""!=a?r(b,0,1):void 0},n.encodePayloadAsArrayBuffer=function(t,e){function r(t,e){n.encodePacket(t,!0,!0,function(t){return e(null,t)})}return t.length?void a(t,r,function(t,n){var r=n.reduce(function(t,e){var n;return n="string"==typeof e?e.length:e.byteLength,t+n.toString().length+n+2},0),o=new Uint8Array(r),i=0;return n.forEach(function(t){var e="string"==typeof t,n=t;if(e){for(var r=new 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arguments.length?(this._randomizationFactor=t,this.backoff&&this.backoff.setJitter(t),this):this._randomizationFactor},r.prototype.reconnectionDelayMax=function(t){return arguments.length?(this._reconnectionDelayMax=t,this.backoff&&this.backoff.setMax(t),this):this._reconnectionDelayMax},r.prototype.timeout=function(t){return arguments.length?(this._timeout=t,this):this._timeout},r.prototype.maybeReconnectOnOpen=function(){!this.reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()},r.prototype.open=r.prototype.connect=function(t){if(p("readyState %s",this.readyState),~this.readyState.indexOf("open"))return this;p("opening %s",this.uri),this.engine=o(this.uri,this.opts);var e=this.engine,n=this;this.readyState="opening",this.skipReconnect=!1;var r=c(e,"open",function(){n.onopen(),t&&t()}),i=c(e,"error",function(e){if(p("connect_error"),n.cleanup(),n.readyState="closed",n.emitAll("connect_error",e),t){var r=new Error("Connection error");r.data=e,t(r)}else 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n=this;e.on("connect",function(){e.id=n.engine.id,~f(n.connected,e)||n.connected.push(e)})}return e},r.prototype.destroy=function(t){var e=f(this.connected,t);~e&&this.connected.splice(e,1),this.connected.length||this.close()},r.prototype.packet=function(t){p("writing packet %j",t);var e=this;e.encoding?e.packetBuffer.push(t):(e.encoding=!0,this.encoder.encode(t,function(t){for(var n=0;n<t.length;n++)e.engine.write(t[n]);e.encoding=!1,e.processPacketQueue()}))},r.prototype.processPacketQueue=function(){if(this.packetBuffer.length>0&&!this.encoding){var t=this.packetBuffer.shift();this.packet(t)}},r.prototype.cleanup=function(){for(var t;t=this.subs.shift();)t.destroy();this.packetBuffer=[],this.encoding=!1,this.decoder.destroy()},r.prototype.close=r.prototype.disconnect=function(){this.skipReconnect=!0,this.backoff.reset(),this.readyState="closed",this.engine&&this.engine.close()},r.prototype.onclose=function(t){p("close"),this.cleanup(),this.backoff.reset(),this.readyState="closed",this.emit("close",t),this._reconnection&&!this.skipReconnect&&this.reconnect()},r.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var t=this;if(this.backoff.attempts>=this._reconnectionAttempts)p("reconnect failed"),this.backoff.reset(),this.emitAll("reconnect_failed"),this.reconnecting=!1;else{var e=this.backoff.duration();p("will wait %dms before reconnect attempt",e),this.reconnecting=!0;var n=setTimeout(function(){t.skipReconnect||(p("attempting reconnect"),t.emitAll("reconnect_attempt",t.backoff.attempts),t.emitAll("reconnecting",t.backoff.attempts),t.skipReconnect||t.open(function(e){e?(p("reconnect attempt error"),t.reconnecting=!1,t.reconnect(),t.emitAll("reconnect_error",e.data)):(p("reconnect success"),t.onreconnect())}))},e);this.subs.push({destroy:function(){clearTimeout(n)}})}},r.prototype.onreconnect=function(){var t=this.backoff.attempts;this.reconnecting=!1,this.backoff.reset(),this.updateSocketIds(),this.emitAll("reconnect",t)}},{"./on":39,"./socket":40,"./url":41,backo2:3,"component-bind":6,"component-emitter":7,debug:9,"engine.io-client":10,indexof:28,"object-component":32,"socket.io-parser":43}],39:[function(t,e,n){function r(t,e,n){return t.on(e,n),{destroy:function(){t.removeListener(e,n)}}}e.exports=r},{}],40:[function(t,e,n){function r(t,e){this.io=t,this.nsp=e,this.json=this,this.ids=0,this.acks={},this.io.autoConnect&&this.open(),this.receiveBuffer=[],this.sendBuffer=[],this.connected=!1,this.disconnected=!0}var o=t("socket.io-parser"),i=t("component-emitter"),s=t("to-array"),a=t("./on"),c=t("component-bind"),u=t("debug")("socket.io-client:socket"),p=t("has-binary");e.exports=n=r;var f={connect:1,connect_error:1,connect_timeout:1,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1},h=i.prototype.emit;i(r.prototype),r.prototype.subEvents=function(){if(!this.subs){var t=this.io;this.subs=[a(t,"open",c(this,"onopen")),a(t,"packet",c(this,"onpacket")),a(t,"close",c(this,"onclose"))]}},r.prototype.open=r.prototype.connect=function(){return this.connected?this:(this.subEvents(),this.io.open(),"open"==this.io.readyState&&this.onopen(),this)},r.prototype.send=function(){var t=s(arguments);return t.unshift("message"),this.emit.apply(this,t),this},r.prototype.emit=function(t){if(f.hasOwnProperty(t))return h.apply(this,arguments),this;var e=s(arguments),n=o.EVENT;p(e)&&(n=o.BINARY_EVENT);var r={type:n,data:e};return"function"==typeof e[e.length-1]&&(u("emitting packet with ack id %d",this.ids),this.acks[this.ids]=e.pop(),r.id=this.ids++),this.connected?this.packet(r):this.sendBuffer.push(r),this},r.prototype.packet=function(t){t.nsp=this.nsp,this.io.packet(t)},r.prototype.onopen=function(){u("transport is open - connecting"),"/"!=this.nsp&&this.packet({type:o.CONNECT})},r.prototype.onclose=function(t){u("close (%s)",t),this.connected=!1,this.disconnected=!0,delete this.id,this.emit("disconnect",t)},r.prototype.onpacket=function(t){if(t.nsp==this.nsp)switch(t.type){case o.CONNECT:this.onconnect();break;case o.EVENT:this.onevent(t);break;case o.BINARY_EVENT:this.onevent(t);break;case o.ACK:this.onack(t);break;case o.BINARY_ACK:this.onack(t);break;case o.DISCONNECT:this.ondisconnect();break;case o.ERROR:this.emit("error",t.data)}},r.prototype.onevent=function(t){var e=t.data||[];u("emitting event %j",e),null!=t.id&&(u("attaching ack callback to event"),e.push(this.ack(t.id))),this.connected?h.apply(this,e):this.receiveBuffer.push(e)},r.prototype.ack=function(t){var e=this,n=!1;return function(){if(!n){n=!0;var r=s(arguments);u("sending ack %j",r);var i=p(r)?o.BINARY_ACK:o.ACK;e.packet({type:i,id:t,data:r})}}},r.prototype.onack=function(t){u("calling ack %s with %j",t.id,t.data);var e=this.acks[t.id];e.apply(this,t.data),delete this.acks[t.id]},r.prototype.onconnect=function(){this.connected=!0,this.disconnected=!1,this.emit("connect"),this.emitBuffered()},r.prototype.emitBuffered=function(){var t;for(t=0;t<this.receiveBuffer.length;t++)h.apply(this,this.receiveBuffer[t]);for(this.receiveBuffer=[],t=0;t<this.sendBuffer.length;t++)this.packet(this.sendBuffer[t]);this.sendBuffer=[]},r.prototype.ondisconnect=function(){u("server disconnect (%s)",this.nsp),this.destroy(),this.onclose("io server disconnect")},r.prototype.destroy=function(){if(this.subs){for(var t=0;t<this.subs.length;t++)this.subs[t].destroy();this.subs=null}this.io.destroy(this)},r.prototype.close=r.prototype.disconnect=function(){return this.connected&&(u("performing disconnect (%s)",this.nsp),this.packet({type:o.DISCONNECT})),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}},{"./on":39,"component-bind":6,"component-emitter":7,debug:9,"has-binary":26,"socket.io-parser":43,"to-array":45}],41:[function(t,e,n){(function(n){function r(t,e){var r=t,e=e||n.location;return null==t&&(t=e.protocol+"//"+e.host),"string"==typeof t&&("/"==t.charAt(0)&&(t="/"==t.charAt(1)?e.protocol+t:e.hostname+t),/^(https?|wss?):\/\//.test(t)||(i("protocol-less url %s",t),t="undefined"!=typeof e?e.protocol+"//"+t:"https://"+t),i("parse %s",t),r=o(t)),r.port||(/^(http|ws)$/.test(r.protocol)?r.port="80":/^(http|ws)s$/.test(r.protocol)&&(r.port="443")),r.path=r.path||"/",r.id=r.protocol+"://"+r.host+":"+r.port,r.href=r.protocol+"://"+r.host+(e&&e.port==r.port?"":":"+r.port),r}var o=t("parseuri"),i=t("debug")("socket.io-client:url");e.exports=r}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{debug:9,parseuri:35}],42:[function(t,e,n){(function(e){var r=t("isarray"),o=t("./is-buffer");n.deconstructPacket=function(t){function e(t){if(!t)return t;if(o(t)){var i={_placeholder:!0,num:n.length};return n.push(t),i}if(r(t)){for(var s=new Array(t.length),a=0;a<t.length;a++)s[a]=e(t[a]);return s}if("object"==typeof t&&!(t instanceof Date)){var s={};for(var c in t)s[c]=e(t[c]);return s}return t}var n=[],i=t.data,s=t;return s.data=e(i),s.attachments=n.length,{packet:s,buffers:n}},n.reconstructPacket=function(t,e){function n(t){if(t&&t._placeholder){var o=e[t.num];return o}if(r(t)){for(var i=0;i<t.length;i++)t[i]=n(t[i]);return t}if(t&&"object"==typeof t){for(var s in t)t[s]=n(t[s]);return t}return t}return t.data=n(t.data),t.attachments=void 0,t},n.removeBlobs=function(t,n){function i(t,c,u){if(!t)return t;if(e.Blob&&t instanceof Blob||e.File&&t instanceof File){s++;var p=new FileReader;p.onload=function(){u?u[c]=this.result:a=this.result,--s||n(a)},p.readAsArrayBuffer(t)}else if(r(t))for(var f=0;f<t.length;f++)i(t[f],f,t);else if(t&&"object"==typeof t&&!o(t))for(var h in t)i(t[h],h,t)}var s=0,a=t;i(a),s||n(a)}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./is-buffer":44,isarray:29}],43:[function(t,e,n){function r(){}function o(t){var e="",r=!1;return e+=t.type,(n.BINARY_EVENT==t.type||n.BINARY_ACK==t.type)&&(e+=t.attachments,e+="-"),t.nsp&&"/"!=t.nsp&&(r=!0,e+=t.nsp),null!=t.id&&(r&&(e+=",",r=!1),e+=t.id),null!=t.data&&(r&&(e+=","),e+=f.stringify(t.data)),p("encoded %j as %s",t,e),e}function i(t,e){function n(t){var n=l.deconstructPacket(t),r=o(n.packet),i=n.buffers;i.unshift(r),e(i)}l.removeBlobs(t,n)}function s(){this.reconstructor=null}function a(t){var e={},r=0;if(e.type=Number(t.charAt(0)),null==n.types[e.type])return u();if(n.BINARY_EVENT==e.type||n.BINARY_ACK==e.type){for(var o="";"-"!=t.charAt(++r)&&(o+=t.charAt(r),r!=t.length););if(o!=Number(o)||"-"!=t.charAt(r))throw new Error("Illegal attachments");e.attachments=Number(o)}if("/"==t.charAt(r+1))for(e.nsp="";++r;){var i=t.charAt(r);if(","==i)break;if(e.nsp+=i,r==t.length)break}else e.nsp="/";var s=t.charAt(r+1);if(""!==s&&Number(s)==s){for(e.id="";++r;){var i=t.charAt(r);if(null==i||Number(i)!=i){--r;break}if(e.id+=t.charAt(r),r==t.length)break}e.id=Number(e.id)}if(t.charAt(++r))try{e.data=f.parse(t.substr(r))}catch(a){return u()}return p("decoded %s as %j",t,e),e}function c(t){this.reconPack=t,this.buffers=[]}function u(t){return{type:n.ERROR,data:"parser error"}}var p=t("debug")("socket.io-parser"),f=t("json3"),h=(t("isarray"),t("component-emitter")),l=t("./binary"),d=t("./is-buffer");n.protocol=4,n.types=["CONNECT","DISCONNECT","EVENT","BINARY_EVENT","ACK","BINARY_ACK","ERROR"],n.CONNECT=0,n.DISCONNECT=1,n.EVENT=2,n.ACK=3,n.ERROR=4,n.BINARY_EVENT=5,n.BINARY_ACK=6,n.Encoder=r,n.Decoder=s,r.prototype.encode=function(t,e){if(p("encoding packet %j",t),n.BINARY_EVENT==t.type||n.BINARY_ACK==t.type)i(t,e);else{var r=o(t);e([r])}},h(s.prototype),s.prototype.add=function(t){var e;if("string"==typeof t)e=a(t),n.BINARY_EVENT==e.type||n.BINARY_ACK==e.type?(this.reconstructor=new c(e),0===this.reconstructor.reconPack.attachments&&this.emit("decoded",e)):this.emit("decoded",e);else{if(!d(t)&&!t.base64)throw new Error("Unknown type: "+t);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");e=this.reconstructor.takeBinaryData(t),e&&(this.reconstructor=null,this.emit("decoded",e))}},s.prototype.destroy=function(){this.reconstructor&&this.reconstructor.finishedReconstruction()},c.prototype.takeBinaryData=function(t){if(this.buffers.push(t),this.buffers.length==this.reconPack.attachments){var e=l.reconstructPacket(this.reconPack,this.buffers);return this.finishedReconstruction(),e}return null},c.prototype.finishedReconstruction=function(){this.reconPack=null,this.buffers=[]}},{"./binary":42,"./is-buffer":44,"component-emitter":7,debug:9,isarray:29,json3:30}],44:[function(t,e,n){(function(t){function n(e){return t.Buffer&&t.Buffer.isBuffer(e)||t.ArrayBuffer&&e instanceof ArrayBuffer}e.exports=n}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{}],45:[function(t,e,n){function r(t,e){var n=[];e=e||0;for(var r=e||0;r<t.length;r++)n[r-e]=t[r];return n}e.exports=r},{}],46:[function(t,e,n){(function(t){!function(r){function o(t){for(var e,n,r=[],o=0,i=t.length;i>o;)e=t.charCodeAt(o++),e>=55296&&56319>=e&&i>o?(n=t.charCodeAt(o++),56320==(64512&n)?r.push(((1023&e)<<10)+(1023&n)+65536):(r.push(e),o--)):r.push(e);return r}function i(t){for(var e,n=t.length,r=-1,o="";++r<n;)e=t[r],e>65535&&(e-=65536,o+=b(e>>>10&1023|55296),e=56320|1023&e),o+=b(e);return o}function s(t){if(t>=55296&&57343>=t)throw Error("Lone surrogate U+"+t.toString(16).toUpperCase()+" is not a scalar value")}function a(t,e){return b(t>>e&63|128)}function c(t){if(0==(4294967168&t))return b(t);var e="";return 0==(4294965248&t)?e=b(t>>6&31|192):0==(4294901760&t)?(s(t),e=b(t>>12&15|224),e+=a(t,6)):0==(4292870144&t)&&(e=b(t>>18&7|240),e+=a(t,12),e+=a(t,6)),e+=b(63&t|128)}function u(t){for(var e,n=o(t),r=n.length,i=-1,s="";++i<r;)e=n[i],s+=c(e);return s}function p(){if(v>=m)throw Error("Invalid byte index");var t=255&g[v];if(v++,128==(192&t))return 63&t;throw Error("Invalid continuation byte")}function f(){var t,e,n,r,o;if(v>m)throw Error("Invalid byte index");if(v==m)return!1;if(t=255&g[v],
|
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v++,0==(128&t))return t;if(192==(224&t)){var e=p();if(o=(31&t)<<6|e,o>=128)return o;throw Error("Invalid continuation byte")}if(224==(240&t)){if(e=p(),n=p(),o=(15&t)<<12|e<<6|n,o>=2048)return s(o),o;throw Error("Invalid continuation byte")}if(240==(248&t)&&(e=p(),n=p(),r=p(),o=(15&t)<<18|e<<12|n<<6|r,o>=65536&&1114111>=o))return o;throw Error("Invalid UTF-8 detected")}function h(t){g=o(t),m=g.length,v=0;for(var e,n=[];(e=f())!==!1;)n.push(e);return i(n)}var l="object"==typeof n&&n,d="object"==typeof e&&e&&e.exports==l&&e,y="object"==typeof t&&t;(y.global===y||y.window===y)&&(r=y);var g,m,v,b=String.fromCharCode,w={version:"2.0.0",encode:u,decode:h};if("function"==typeof define&&"object"==typeof define.amd&&define.amd)define(function(){return w});else if(l&&!l.nodeType)if(d)d.exports=w;else{var k={},x=k.hasOwnProperty;for(var A in w)x.call(w,A)&&(l[A]=w[A])}else r.utf8=w}(this)}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{}],47:[function(t,e,n){function r(t,e,n){var r;return r=e?new i(t,e):new i(t)}var o=function(){return this}(),i=o.WebSocket||o.MozWebSocket;e.exports=i?r:null,i&&(r.prototype=i.prototype)},{}],48:[function(t,e,n){(function(n){"use strict";function r(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function o(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function i(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}function s(t){var e=function(t){function e(t,n){if(r(this,e),void 0===n)throw new Error("Options must not be undefined!");if(null==n.room)throw new Error("You must define a room name!");n.role="slave";var i=o(this,Object.getPrototypeOf(e).call(this,t,n));i.options=n,n.url=n.url||"https://yjs.dbis.rwth-aachen.de:5074";var s=p(n.url);i.socket=s;var a=i;return i._onConnect=function(){s.emit("joinRoom",n.room),a.userJoined("server","master")},s.on("connect",i._onConnect),s.connected?i._onConnect():s.connect(),i._onYjsEvent=function(t){null!=t.type&&("sync done"===t.type&&a.setUserId(s.id),t.room===n.room&&a.receiveMessage("server",t))},s.on("yjsEvent",i._onYjsEvent),i._onDisconnect=function(t){a.userLeft("server")},s.on("disconnect",i._onDisconnect),i}return i(e,t),a(e,[{key:"disconnect",value:function(){this.socket.emit("leaveRoom",this.options.room),this.socket.disconnect(),c(Object.getPrototypeOf(e.prototype),"disconnect",this).call(this)}},{key:"destroy",value:function(){this.disconnect(),this.socket.off("disconnect",this._onDisconnect),this.socket.off("yjsEvent",this._onYjsEvent),this.socket.off("connect",this._onConnect),this.socket.destroy(),this.socket=null}},{key:"reconnect",value:function(){this.socket.connect(),c(Object.getPrototypeOf(e.prototype),"reconnect",this).call(this)}},{key:"send",value:function(t,e){e.room=this.options.room,this.socket.emit("yjsEvent",e)}},{key:"broadcast",value:function(t){t.room=this.options.room,this.socket.emit("yjsEvent",t)}},{key:"isDisconnected",value:function(){return this.socket.disconnected}}]),e}(t.AbstractConnector);t.extend("websockets-client",e)}var a=function(){function t(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}return function(e,n,r){return n&&t(e.prototype,n),r&&t(e,r),e}}(),c=function f(t,e,n){null===t&&(t=Function.prototype);var r=Object.getOwnPropertyDescriptor(t,e);if(void 0===r){var o=Object.getPrototypeOf(t);return null===o?void 0:f(o,e,n)}if("value"in r)return r.value;var i=r.get;if(void 0!==i)return i.call(n)},u=n.define;n.define=null;var p=t("socket.io-client");n.define=u,e.exports=s,"undefined"!=typeof Y&&s(Y)}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"socket.io-client":36}]},{},[48]);
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