roomrtc/dist/roomrtc.min.js

RoomRTC enables quick development of webRTC

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function Backoff(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}module.exports=Backoff,Backoff.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var o=Math.random(),i=Math.floor(o*this.jitter*t);t=0==(1&Math.floor(10*o))?t-i:t+i}return 0|Math.min(t,this.max)},Backoff.prototype.reset=function(){this.attempts=0},Backoff.prototype.setMin=function(t){this.ms=t},Backoff.prototype.setMax=function(t){this.max=t},Backoff.prototype.setJitter=function(t){this.jitter=t};
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},{"ms":33}],15:[function(require,module,exports){
module.exports=require("./lib/index");
},{"./lib/index":16}],16:[function(require,module,exports){
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},{"./socket":17,"engine.io-parser":25}],17:[function(require,module,exports){
(function (global){
function Socket(e,t){if(!(this instanceof Socket))return new Socket(e,t);t=t||{},e&&"object"==typeof e&&(t=e,e=null),e?(e=parseuri(e),t.hostname=e.host,t.secure="https"===e.protocol||"wss"===e.protocol,t.port=e.port,e.query&&(t.query=e.query)):t.host&&(t.hostname=parseuri(t.host).host),this.secure=null!=t.secure?t.secure:global.location&&"https:"===location.protocol,t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.agent=t.agent||!1,this.hostname=t.hostname||(global.location?location.hostname:"localhost"),this.port=t.port||(global.location&&location.port?location.port:this.secure?443:80),this.query=t.query||{},"string"==typeof this.query&&(this.query=parseqs.decode(this.query)),this.upgrade=!1!==t.upgrade,this.path=(t.path||"/engine.io").replace(/\/$/,"")+"/",this.forceJSONP=!!t.forceJSONP,this.jsonp=!1!==t.jsonp,this.forceBase64=!!t.forceBase64,this.enablesXDR=!!t.enablesXDR,this.timestampParam=t.timestampParam||"t",this.timestampRequests=t.timestampRequests,this.transports=t.transports||["polling","websocket"],this.readyState="",this.writeBuffer=[],this.prevBufferLen=0,this.policyPort=t.policyPort||843,this.rememberUpgrade=t.rememberUpgrade||!1,this.binaryType=null,this.onlyBinaryUpgrades=t.onlyBinaryUpgrades,this.perMessageDeflate=!1!==t.perMessageDeflate&&(t.perMessageDeflate||{}),!0===this.perMessageDeflate&&(this.perMessageDeflate={}),this.perMessageDeflate&&null==this.perMessageDeflate.threshold&&(this.perMessageDeflate.threshold=1024),this.pfx=t.pfx||null,this.key=t.key||null,this.passphrase=t.passphrase||null,this.cert=t.cert||null,this.ca=t.ca||null,this.ciphers=t.ciphers||null,this.rejectUnauthorized=void 0===t.rejectUnauthorized?null:t.rejectUnauthorized,this.forceNode=!!t.forceNode;var r="object"==typeof global&&global;r.global===r&&(t.extraHeaders&&Object.keys(t.extraHeaders).length>0&&(this.extraHeaders=t.extraHeaders),t.localAddress&&(this.localAddress=t.localAddress)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingIntervalTimer=null,this.pingTimeoutTimer=null,this.open()}function clone(e){var t={};for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);return t}var transports=require("./transports/index"),Emitter=require("component-emitter"),debug=require("debug")("engine.io-client:socket"),index=require("indexof"),parser=require("engine.io-parser"),parseuri=require("parseuri"),parsejson=require("parsejson"),parseqs=require("parseqs");module.exports=Socket,Socket.priorWebsocketSuccess=!1,Emitter(Socket.prototype),Socket.protocol=parser.protocol,Socket.Socket=Socket,Socket.Transport=require("./transport"),Socket.transports=require("./transports/index"),Socket.parser=require("engine.io-parser"),Socket.prototype.createTransport=function(e){debug('creating transport "%s"',e);var t=clone(this.query);t.EIO=parser.protocol,t.transport=e,this.id&&(t.sid=this.id);var r=new transports[e]({agent:this.agent,hostname:this.hostname,port:this.port,secure:this.secure,path:this.path,query:t,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,perMessageDeflate:this.perMessageDeflate,extraHeaders:this.extraHeaders,forceNode:this.forceNode,localAddress:this.localAddress});return r},Socket.prototype.open=function(){var e;if(this.rememberUpgrade&&Socket.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)e="websocket";else{if(0===this.transports.length){var t=this;return void setTimeout(function(){t.emit("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)},Socket.prototype.setTransport=function(e){debug("setting transport %s",e.name);var t=this;this.transport&&(debug("clearing existing transport %s",this.transport.name),this.transport.removeAllListeners()),this.transport=e,e.on("drain",function(){t.onDrain()}).on("packet",function(e){t.onPacket(e)}).on("error",function(e){t.onError(e)}).on("close",function(){t.onClose("transport close")})},Socket.prototype.probe=function(e){function t(){if(h.onlyBinaryUpgrades){var t=!this.supportsBinary&&h.transport.supportsBinary;c=c||t}c||(debug('probe transport "%s" opened',e),p.send([{type:"ping",data:"probe"}]),p.once("packet",function(t){if(!c)if("pong"===t.type&&"probe"===t.data){if(debug('probe transport "%s" pong',e),h.upgrading=!0,h.emit("upgrading",p),!p)return;Socket.priorWebsocketSuccess="websocket"===p.name,debug('pausing current transport "%s"',h.transport.name),h.transport.pause(function(){c||"closed"!==h.readyState&&(debug("changing transport and sending upgrade packet"),a(),h.setTransport(p),p.send([{type:"upgrade"}]),h.emit("upgrade",p),p=null,h.upgrading=!1,h.flush())})}else{debug('probe transport "%s" failed',e);var r=new Error("probe error");r.transport=p.name,h.emit("upgradeError",r)}}))}function r(){c||(c=!0,a(),p.close(),p=null)}function s(t){var s=new Error("probe error: "+t);s.transport=p.name,r(),debug('probe transport "%s" failed because of error: %s',e,t),h.emit("upgradeError",s)}function o(){s("transport closed")}function i(){s("socket closed")}function n(e){p&&e.name!==p.name&&(debug('"%s" works - aborting "%s"',e.name,p.name),r())}function a(){p.removeListener("open",t),p.removeListener("error",s),p.removeListener("close",o),h.removeListener("close",i),h.removeListener("upgrading",n)}debug('probing transport "%s"',e);var p=this.createTransport(e,{probe:1}),c=!1,h=this;Socket.priorWebsocketSuccess=!1,p.once("open",t),p.once("error",s),p.once("close",o),this.once("close",i),this.once("upgrading",n),p.open()},Socket.prototype.onOpen=function(){if(debug("socket open"),this.readyState="open",Socket.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause){debug("starting upgrade probes");for(var e=0,t=this.upgrades.length;e<t;e++)this.probe(this.upgrades[e])}},Socket.prototype.onPacket=function(e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(debug('socket receive: type "%s", data "%s"',e.type,e.data),this.emit("packet",e),this.emit("heartbeat"),e.type){case"open":this.onHandshake(parsejson(e.data));break;case"pong":this.setPing(),this.emit("pong");break;case"error":var t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emit("data",e.data),this.emit("message",e.data)}else debug('packet received with socket readyState "%s"',this.readyState)},Socket.prototype.onHandshake=function(e){this.emit("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.onOpen(),"closed"!==this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},Socket.prototype.onHeartbeat=function(e){clearTimeout(this.pingTimeoutTimer);var t=this;t.pingTimeoutTimer=setTimeout(function(){"closed"!==t.readyState&&t.onClose("ping timeout")},e||t.pingInterval+t.pingTimeout)},Socket.prototype.setPing=function(){var e=this;clearTimeout(e.pingIntervalTimer),e.pingIntervalTimer=setTimeout(function(){debug("writing ping packet - expecting pong within %sms",e.pingTimeout),e.ping(),e.onHeartbeat(e.pingTimeout)},e.pingInterval)},Socket.prototype.ping=function(){var e=this;this.sendPacket("ping",function(){e.emit("ping")})},Socket.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},Socket.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(debug("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},Socket.prototype.write=Socket.prototype.send=function(e,t,r){return this.sendPacket("message",e,t,r),this},Socket.prototype.sendPacket=function(e,t,r,s){if("function"==typeof t&&(s=t,t=void 0),"function"==typeof r&&(s=r,r=null),"closing"!==this.readyState&&"closed"!==this.readyState){r=r||{},r.compress=!1!==r.compress;var o={type:e,data:t,options:r};this.emit("packetCreate",o),this.writeBuffer.push(o),s&&this.once("flush",s),this.flush()}},Socket.prototype.close=function(){function e(){s.onClose("forced close"),debug("socket closing - telling transport to close"),s.transport.close()}function t(){s.removeListener("upgrade",t),s.removeListener("upgradeError",t),e()}function r(){s.once("upgrade",t),s.once("upgradeError",t)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var s=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?r():e()}):this.upgrading?r():e()}return this},Socket.prototype.onError=function(e){debug("socket error %j",e),Socket.priorWebsocketSuccess=!1,this.emit("error",e),this.onClose("transport error",e)},Socket.prototype.onClose=function(e,t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){debug('socket close with reason: "%s"',e);var r=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",e,t),r.writeBuffer=[],r.prevBufferLen=0}},Socket.prototype.filterUpgrades=function(e){for(var t=[],r=0,s=e.length;r<s;r++)~index(this.transports,e[r])&&t.push(e[r]);return t};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./transport":18,"./transports/index":19,"component-emitter":11,"debug":13,"engine.io-parser":25,"indexof":31,"parsejson":34,"parseqs":35,"parseuri":36}],18:[function(require,module,exports){
function Transport(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,this.forceNode=t.forceNode,this.extraHeaders=t.extraHeaders,this.localAddress=t.localAddress}var parser=require("engine.io-parser"),Emitter=require("component-emitter");module.exports=Transport,Emitter(Transport.prototype),Transport.prototype.onError=function(t,e){var r=new Error(t);return r.type="TransportError",r.description=e,this.emit("error",r),this},Transport.prototype.open=function(){return"closed"!==this.readyState&&""!==this.readyState||(this.readyState="opening",this.doOpen()),this},Transport.prototype.close=function(){return"opening"!==this.readyState&&"open"!==this.readyState||(this.doClose(),this.onClose()),this},Transport.prototype.send=function(t){if("open"!==this.readyState)throw new Error("Transport not open");this.write(t)},Transport.prototype.onOpen=function(){this.readyState="open",this.writable=!0,this.emit("open")},Transport.prototype.onData=function(t){var e=parser.decodePacket(t,this.socket.binaryType);this.onPacket(e)},Transport.prototype.onPacket=function(t){this.emit("packet",t)},Transport.prototype.onClose=function(){this.readyState="closed",this.emit("close")};
},{"component-emitter":11,"engine.io-parser":25}],19:[function(require,module,exports){
(function (global){
function polling(e){var o,t=!1,r=!1,n=!1!==e.jsonp;if(global.location){var i="https:"===location.protocol,l=location.port;l||(l=i?443:80),t=e.hostname!==location.hostname||l!==e.port,r=e.secure!==i}if(e.xdomain=t,e.xscheme=r,o=new XMLHttpRequest(e),"open"in o&&!e.forceJSONP)return new XHR(e);if(!n)throw new Error("JSONP disabled");return new JSONP(e)}var XMLHttpRequest=require("xmlhttprequest-ssl"),XHR=require("./polling-xhr"),JSONP=require("./polling-jsonp"),websocket=require("./websocket");exports.polling=polling,exports.websocket=websocket;
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./polling-jsonp":20,"./polling-xhr":21,"./websocket":23,"xmlhttprequest-ssl":24}],20:[function(require,module,exports){
(function (global){
function empty(){}function JSONPPolling(e){Polling.call(this,e),this.query=this.query||{},callbacks||(global.___eio||(global.___eio=[]),callbacks=global.___eio),this.index=callbacks.length;var t=this;callbacks.push(function(e){t.onData(e)}),this.query.j=this.index,global.document&&global.addEventListener&&global.addEventListener("beforeunload",function(){t.script&&(t.script.onerror=empty)},!1)}var Polling=require("./polling"),inherit=require("component-inherit");module.exports=JSONPPolling;var rNewline=/\n/g,rEscapedNewline=/\\n/g,callbacks;inherit(JSONPPolling,Polling),JSONPPolling.prototype.supportsBinary=!1,JSONPPolling.prototype.doClose=function(){this.script&&(this.script.parentNode.removeChild(this.script),this.script=null),this.form&&(this.form.parentNode.removeChild(this.form),this.form=null,this.iframe=null),Polling.prototype.doClose.call(this)},JSONPPolling.prototype.doPoll=function(){var e=this,t=document.createElement("script");this.script&&(this.script.parentNode.removeChild(this.script),this.script=null),t.async=!0,t.src=this.uri(),t.onerror=function(t){e.onError("jsonp poll error",t)};var i=document.getElementsByTagName("script")[0];i?i.parentNode.insertBefore(t,i):(document.head||document.body).appendChild(t),this.script=t;var r="undefined"!=typeof navigator&&/gecko/i.test(navigator.userAgent);r&&setTimeout(function(){var e=document.createElement("iframe");document.body.appendChild(e),document.body.removeChild(e)},100)},JSONPPolling.prototype.doWrite=function(e,t){function i(){r(),t()}function r(){if(o.iframe)try{o.form.removeChild(o.iframe)}catch(e){o.onError("jsonp polling iframe removal error",e)}try{var e='<iframe src="javascript:0" name="'+o.iframeId+'">';n=document.createElement(e)}catch(e){n=document.createElement("iframe"),n.name=o.iframeId,n.src="javascript:0"}n.id=o.iframeId,o.form.appendChild(n),o.iframe=n}var o=this;if(!this.form){var n,a=document.createElement("form"),l=document.createElement("textarea"),s=this.iframeId="eio_iframe_"+this.index;a.className="socketio",a.style.position="absolute",a.style.top="-1000px",a.style.left="-1000px",a.target=s,a.method="POST",a.setAttribute("accept-charset","utf-8"),l.name="d",a.appendChild(l),document.body.appendChild(a),this.form=a,this.area=l}this.form.action=this.uri(),r(),e=e.replace(rEscapedNewline,"\\\n"),this.area.value=e.replace(rNewline,"\\n");try{this.form.submit()}catch(e){}this.iframe.attachEvent?this.iframe.onreadystatechange=function(){"complete"===o.iframe.readyState&&i()}:this.iframe.onload=i};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./polling":22,"component-inherit":12}],21:[function(require,module,exports){
(function (global){
function empty(){}function XHR(t){if(Polling.call(this,t),this.requestTimeout=t.requestTimeout,global.location){var e="https:"===location.protocol,s=location.port;s||(s=e?443:80),this.xd=t.hostname!==global.location.hostname||s!==t.port,this.xs=t.secure!==e}else this.extraHeaders=t.extraHeaders}function Request(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.requestTimeout=t.requestTimeout,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.extraHeaders=t.extraHeaders,this.create()}function unloadHandler(){for(var t in Request.requests)Request.requests.hasOwnProperty(t)&&Request.requests[t].abort()}var XMLHttpRequest=require("xmlhttprequest-ssl"),Polling=require("./polling"),Emitter=require("component-emitter"),inherit=require("component-inherit"),debug=require("debug")("engine.io-client:polling-xhr");module.exports=XHR,module.exports.Request=Request,inherit(XHR,Polling),XHR.prototype.supportsBinary=!0,XHR.prototype.request=function(t){return t=t||{},t.uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,t.requestTimeout=this.requestTimeout,t.extraHeaders=this.extraHeaders,new Request(t)},XHR.prototype.doWrite=function(t,e){var s="string"!=typeof t&&void 0!==t,r=this.request({method:"POST",data:t,isBinary:s}),i=this;r.on("success",e),r.on("error",function(t){i.onError("xhr post error",t)}),this.sendXhr=r},XHR.prototype.doPoll=function(){debug("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},Emitter(Request.prototype),Request.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var e=this.xhr=new XMLHttpRequest(t),s=this;try{debug("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async);try{if(this.extraHeaders){e.setDisableHeaderCheck(!0);for(var r in this.extraHeaders)this.extraHeaders.hasOwnProperty(r)&&e.setRequestHeader(r,this.extraHeaders[r])}}catch(t){}if(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(t){}try{e.setRequestHeader("Accept","*/*")}catch(t){}"withCredentials"in e&&(e.withCredentials=!0),this.requestTimeout&&(e.timeout=this.requestTimeout),this.hasXDR()?(e.onload=function(){s.onLoad()},e.onerror=function(){s.onError(e.responseText)}):e.onreadystatechange=function(){4===e.readyState&&(200===e.status||1223===e.status?s.onLoad():setTimeout(function(){s.onError(e.status)},0))},debug("xhr data %s",this.data),e.send(this.data)}catch(t){return void setTimeout(function(){s.onError(t)},0)}global.document&&(this.index=Request.requestsCount++,Request.requests[this.index]=this)},Request.prototype.onSuccess=function(){this.emit("success"),this.cleanup()},Request.prototype.onData=function(t){this.emit("data",t),this.onSuccess()},Request.prototype.onError=function(t){this.emit("error",t),this.cleanup(!0)},Request.prototype.cleanup=function(t){if("undefined"!=typeof this.xhr&&null!==this.xhr){if(this.hasXDR()?this.xhr.onload=this.xhr.onerror=empty:this.xhr.onreadystatechange=empty,t)try{this.xhr.abort()}catch(t){}global.document&&delete Request.requests[this.index],this.xhr=null}},Request.prototype.onLoad=function(){var t;try{var e;try{e=this.xhr.getResponseHeader("Content-Type").split(";")[0]}catch(t){}if("application/octet-stream"===e)t=this.xhr.response||this.xhr.responseText;else if(this.supportsBinary)try{t=String.fromCharCode.apply(null,new Uint8Array(this.xhr.response))}catch(e){for(var s=new Uint8Array(this.xhr.response),r=[],i=0,o=s.length;i<o;i++)r.push(s[i]);t=String.fromCharCode.apply(null,r)}else t=this.xhr.responseText}catch(t){this.onError(t)}null!=t&&this.onData(t)},Request.prototype.hasXDR=function(){return"undefined"!=typeof global.XDomainRequest&&!this.xs&&this.enablesXDR},Request.prototype.abort=function(){this.cleanup()},Request.requestsCount=0,Request.requests={},global.document&&(global.attachEvent?global.attachEvent("onunload",unloadHandler):global.addEventListener&&global.addEventListener("beforeunload",unloadHandler,!1));
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./polling":22,"component-emitter":11,"component-inherit":12,"debug":13,"xmlhttprequest-ssl":24}],22:[function(require,module,exports){
function Polling(t){var e=t&&t.forceBase64;hasXHR2&&!e||(this.supportsBinary=!1),Transport.call(this,t)}var Transport=require("../transport"),parseqs=require("parseqs"),parser=require("engine.io-parser"),inherit=require("component-inherit"),yeast=require("yeast"),debug=require("debug")("engine.io-client:polling");module.exports=Polling;var hasXHR2=function(){var t=require("xmlhttprequest-ssl"),e=new t({xdomain:!1});return null!=e.responseType}();inherit(Polling,Transport),Polling.prototype.name="polling",Polling.prototype.doOpen=function(){this.poll()},Polling.prototype.pause=function(t){function e(){debug("paused"),i.readyState="paused",t()}var i=this;if(this.readyState="pausing",this.polling||!this.writable){var o=0;this.polling&&(debug("we are currently polling - waiting to pause"),o++,this.once("pollComplete",function(){debug("pre-pause polling complete"),--o||e()})),this.writable||(debug("we are currently writing - waiting to pause"),o++,this.once("drain",function(){debug("pre-pause writing complete"),--o||e()}))}else e()},Polling.prototype.poll=function(){debug("polling"),this.polling=!0,this.doPoll(),this.emit("poll")},Polling.prototype.onData=function(t){var e=this;debug("polling got data %s",t);var i=function(t,i,o){return"opening"===e.readyState&&e.onOpen(),"close"===t.type?(e.onClose(),!1):void e.onPacket(t)};parser.decodePayload(t,this.socket.binaryType,i),"closed"!==this.readyState&&(this.polling=!1,this.emit("pollComplete"),"open"===this.readyState?this.poll():debug('ignoring poll - transport state "%s"',this.readyState))},Polling.prototype.doClose=function(){function t(){debug("writing close packet"),e.write([{type:"close"}])}var e=this;"open"===this.readyState?(debug("transport open - closing"),t()):(debug("transport not open - deferring close"),this.once("open",t))},Polling.prototype.write=function(t){var e=this;this.writable=!1;var i=function(){e.writable=!0,e.emit("drain")};parser.encodePayload(t,this.supportsBinary,function(t){e.doWrite(t,i)})},Polling.prototype.uri=function(){var t=this.query||{},e=this.secure?"https":"http",i="";!1!==this.timestampRequests&&(t[this.timestampParam]=yeast()),this.supportsBinary||t.sid||(t.b64=1),t=parseqs.encode(t),this.port&&("https"===e&&443!==Number(this.port)||"http"===e&&80!==Number(this.port))&&(i=":"+this.port),t.length&&(t="?"+t);var o=this.hostname.indexOf(":")!==-1;return e+"://"+(o?"["+this.hostname+"]":this.hostname)+i+this.path+t};
},{"../transport":18,"component-inherit":12,"debug":13,"engine.io-parser":25,"parseqs":35,"xmlhttprequest-ssl":24,"yeast":71}],23:[function(require,module,exports){
(function (global){
function WS(e){var t=e&&e.forceBase64;t&&(this.supportsBinary=!1),this.perMessageDeflate=e.perMessageDeflate,this.usingBrowserWebSocket=BrowserWebSocket&&!e.forceNode,this.usingBrowserWebSocket||(WebSocket=NodeWebSocket),Transport.call(this,e)}var Transport=require("../transport"),parser=require("engine.io-parser"),parseqs=require("parseqs"),inherit=require("component-inherit"),yeast=require("yeast"),debug=require("debug")("engine.io-client:websocket"),BrowserWebSocket=global.WebSocket||global.MozWebSocket,NodeWebSocket;if("undefined"==typeof window)try{NodeWebSocket=require("ws")}catch(e){}var WebSocket=BrowserWebSocket;WebSocket||"undefined"!=typeof window||(WebSocket=NodeWebSocket),module.exports=WS,inherit(WS,Transport),WS.prototype.name="websocket",WS.prototype.supportsBinary=!0,WS.prototype.doOpen=function(){if(this.check()){var e=this.uri(),t=void 0,s={agent:this.agent,perMessageDeflate:this.perMessageDeflate};s.pfx=this.pfx,s.key=this.key,s.passphrase=this.passphrase,s.cert=this.cert,s.ca=this.ca,s.ciphers=this.ciphers,s.rejectUnauthorized=this.rejectUnauthorized,this.extraHeaders&&(s.headers=this.extraHeaders),this.localAddress&&(s.localAddress=this.localAddress);try{this.ws=this.usingBrowserWebSocket?new WebSocket(e):new WebSocket(e,t,s)}catch(e){return this.emit("error",e)}void 0===this.ws.binaryType&&(this.supportsBinary=!1),this.ws.supports&&this.ws.supports.binary?(this.supportsBinary=!0,this.ws.binaryType="nodebuffer"):this.ws.binaryType="arraybuffer",this.addEventListeners()}},WS.prototype.addEventListeners=function(){var e=this;this.ws.onopen=function(){e.onOpen()},this.ws.onclose=function(){e.onClose()},this.ws.onmessage=function(t){e.onData(t.data)},this.ws.onerror=function(t){e.onError("websocket error",t)}},WS.prototype.write=function(e){function t(){s.emit("flush"),setTimeout(function(){s.writable=!0,s.emit("drain")},0)}var s=this;this.writable=!1;for(var r=e.length,o=0,i=r;o<i;o++)!function(e){parser.encodePacket(e,s.supportsBinary,function(o){if(!s.usingBrowserWebSocket){var i={};if(e.options&&(i.compress=e.options.compress),s.perMessageDeflate){var n="string"==typeof o?global.Buffer.byteLength(o):o.length;n<s.perMessageDeflate.threshold&&(i.compress=!1)}}try{s.usingBrowserWebSocket?s.ws.send(o):s.ws.send(o,i)}catch(e){debug("websocket closed before onclose event")}--r||t()})}(e[o])},WS.prototype.onClose=function(){Transport.prototype.onClose.call(this)},WS.prototype.doClose=function(){"undefined"!=typeof this.ws&&this.ws.close()},WS.prototype.uri=function(){var e=this.query||{},t=this.secure?"wss":"ws",s="";this.port&&("wss"===t&&443!==Number(this.port)||"ws"===t&&80!==Number(this.port))&&(s=":"+this.port),this.timestampRequests&&(e[this.timestampParam]=yeast()),this.supportsBinary||(e.b64=1),e=parseqs.encode(e),e.length&&(e="?"+e);var r=this.hostname.indexOf(":")!==-1;return t+"://"+(r?"["+this.hostname+"]":this.hostname)+s+this.path+e},WS.prototype.check=function(){return!(!WebSocket||"__initialize"in WebSocket&&this.name===WS.prototype.name)};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../transport":18,"component-inherit":12,"debug":13,"engine.io-parser":25,"parseqs":35,"ws":9,"yeast":71}],24:[function(require,module,exports){
(function (global){
var hasCORS=require("has-cors");module.exports=function(e){var t=e.xdomain,n=e.xscheme,r=e.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!t||hasCORS))return new XMLHttpRequest}catch(e){}try{if("undefined"!=typeof XDomainRequest&&!n&&r)return new XDomainRequest}catch(e){}if(!t)try{return new(global[["Active"].concat("Object").join("X")])("Microsoft.XMLHTTP")}catch(e){}};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"has-cors":30}],25:[function(require,module,exports){
(function (global){
function encodeBase64Object(e,r){var t="b"+exports.packets[e.type]+e.data.data;return r(t)}function encodeArrayBuffer(e,r,t){if(!r)return exports.encodeBase64Packet(e,t);var n=e.data,a=new Uint8Array(n),o=new Uint8Array(1+n.byteLength);o[0]=packets[e.type];for(var f=0;f<a.length;f++)o[f+1]=a[f];return t(o.buffer)}function encodeBlobAsArrayBuffer(e,r,t){if(!r)return exports.encodeBase64Packet(e,t);var n=new FileReader;return n.onload=function(){e.data=n.result,exports.encodePacket(e,r,!0,t)},n.readAsArrayBuffer(e.data)}function encodeBlob(e,r,t){if(!r)return exports.encodeBase64Packet(e,t);if(dontSendBlobs)return encodeBlobAsArrayBuffer(e,r,t);var n=new Uint8Array(1);n[0]=packets[e.type];var a=new Blob([n.buffer,e.data]);return t(a)}function tryDecode(e){try{e=utf8.decode(e)}catch(e){return!1}return e}function map(e,r,t){for(var n=new Array(e.length),a=after(e.length,t),o=function(e,t,a){r(t,function(r,t){n[e]=t,a(r,n)})},f=0;f<e.length;f++)o(f,e[f],a)}var keys=require("./keys"),hasBinary=require("has-binary"),sliceBuffer=require("arraybuffer.slice"),after=require("after"),utf8=require("wtf-8"),base64encoder;global&&global.ArrayBuffer&&(base64encoder=require("base64-arraybuffer"));var isAndroid="undefined"!=typeof navigator&&/Android/i.test(navigator.userAgent),isPhantomJS="undefined"!=typeof navigator&&/PhantomJS/i.test(navigator.userAgent),dontSendBlobs=isAndroid||isPhantomJS;exports.protocol=3;var packets=exports.packets={open:0,close:1,ping:2,pong:3,message:4,upgrade:5,noop:6},packetslist=keys(packets),err={type:"error",data:"parser error"},Blob=require("blob");exports.encodePacket=function(e,r,t,n){"function"==typeof r&&(n=r,r=!1),"function"==typeof t&&(n=t,t=null);var a=void 0===e.data?void 0:e.data.buffer||e.data;if(global.ArrayBuffer&&a instanceof ArrayBuffer)return encodeArrayBuffer(e,r,n);if(Blob&&a instanceof global.Blob)return encodeBlob(e,r,n);if(a&&a.base64)return encodeBase64Object(e,n);var o=packets[e.type];return void 0!==e.data&&(o+=t?utf8.encode(String(e.data)):String(e.data)),n(""+o)},exports.encodeBase64Packet=function(e,r){var t="b"+exports.packets[e.type];if(Blob&&e.data instanceof global.Blob){var n=new FileReader;return n.onload=function(){var e=n.result.split(",")[1];r(t+e)},n.readAsDataURL(e.data)}var a;try{a=String.fromCharCode.apply(null,new Uint8Array(e.data))}catch(r){for(var o=new Uint8Array(e.data),f=new Array(o.length),i=0;i<o.length;i++)f[i]=o[i];a=String.fromCharCode.apply(null,f)}return t+=global.btoa(a),r(t)},exports.decodePacket=function(e,r,t){if(void 0===e)return err;if("string"==typeof e){if("b"==e.charAt(0))return exports.decodeBase64Packet(e.substr(1),r);if(t&&(e=tryDecode(e),e===!1))return err;var n=e.charAt(0);return Number(n)==n&&packetslist[n]?e.length>1?{type:packetslist[n],data:e.substring(1)}:{type:packetslist[n]}:err}var a=new Uint8Array(e),n=a[0],o=sliceBuffer(e,1);return Blob&&"blob"===r&&(o=new Blob([o])),{type:packetslist[n],data:o}},exports.decodeBase64Packet=function(e,r){var t=packetslist[e.charAt(0)];if(!base64encoder)return{type:t,data:{base64:!0,data:e.substr(1)}};var n=base64encoder.decode(e.substr(1));return"blob"===r&&Blob&&(n=new Blob([n])),{type:t,data:n}},exports.encodePayload=function(e,r,t){function n(e){return e.length+":"+e}function a(e,t){exports.encodePacket(e,!!o&&r,!0,function(e){t(null,n(e))})}"function"==typeof r&&(t=r,r=null);var o=hasBinary(e);return r&&o?Blob&&!dontSendBlobs?exports.encodePayloadAsBlob(e,t):exports.encodePayloadAsArrayBuffer(e,t):e.length?void map(e,a,function(e,r){return t(r.join(""))}):t("0:")},exports.decodePayload=function(e,r,t){if("string"!=typeof e)return exports.decodePayloadAsBinary(e,r,t);"function"==typeof r&&(t=r,r=null);var n;if(""==e)return t(err,0,1);for(var a,o,f="",i=0,u=e.length;i<u;i++){var c=e.charAt(i);if(":"!=c)f+=c;else{if(""==f||f!=(a=Number(f)))return t(err,0,1);if(o=e.substr(i+1,a),f!=o.length)return t(err,0,1);if(o.length){if(n=exports.decodePacket(o,r,!0),err.type==n.type&&err.data==n.data)return t(err,0,1);var s=t(n,i+a,u);if(!1===s)return}i+=a,f=""}}return""!=f?t(err,0,1):void 0},exports.encodePayloadAsA