gritty
Version:
Web terminal emulator
7 lines • 372 kB
JavaScript
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r(){~u(n.connecting,i)||n.connecting.push(i)}var i=this.nsps[e];if(!i){i=new o(this,e,t),this.nsps[e]=i;var n=this;i.on("connecting",r),i.on("connect",(function(){i.id=n.generateId(e)})),this.autoConnect&&r()}return i},i.prototype.destroy=function(e){var t=u(this.connecting,e);~t&&this.connecting.splice(t,1),this.connecting.length||this.close()},i.prototype.packet=function(e){l("writing packet %j",e);var t=this;e.query&&0===e.type&&(e.nsp+="?"+e.query),t.encoding?t.packetBuffer.push(e):(t.encoding=!0,this.encoder.encode(e,(function(r){for(var i=0;i<r.length;i++)t.engine.write(r[i],e.options);t.encoding=!1,t.processPacketQueue()})))},i.prototype.processPacketQueue=function(){if(this.packetBuffer.length>0&&!this.encoding){var e=this.packetBuffer.shift();this.packet(e)}},i.prototype.cleanup=function(){l("cleanup");for(var e=this.subs.length,t=0;t<e;t++)this.subs.shift().destroy();this.packetBuffer=[],this.encoding=!1,this.lastPing=null,this.decoder.destroy()},i.prototype.close=i.prototype.disconnect=function(){l("disconnect"),this.skipReconnect=!0,this.reconnecting=!1,"opening"===this.readyState&&this.cleanup(),this.backoff.reset(),this.readyState="closed",this.engine&&this.engine.close()},i.prototype.onclose=function(e){l("onclose"),this.cleanup(),this.backoff.reset(),this.readyState="closed",this.emit("close",e),this._reconnection&&!this.skipReconnect&&this.reconnect()},i.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var e=this;if(this.backoff.attempts>=this._reconnectionAttempts)l("reconnect failed"),this.backoff.reset(),this.emitAll("reconnect_failed"),this.reconnecting=!1;else{var t=this.backoff.duration();l("will wait %dms before reconnect attempt",t),this.reconnecting=!0;var r=setTimeout((function(){e.skipReconnect||(l("attempting reconnect"),e.emitAll("reconnect_attempt",e.backoff.attempts),e.emitAll("reconnecting",e.backoff.attempts),e.skipReconnect||e.open((function(t){t?(l("reconnect attempt error"),e.reconnecting=!1,e.reconnect(),e.emitAll("reconnect_error",t.data)):(l("reconnect success"),e.onreconnect())})))}),t);this.subs.push({destroy:function(){clearTimeout(r)}})}},i.prototype.onreconnect=function(){var e=this.backoff.attempts;this.reconnecting=!1,this.backoff.reset(),this.updateSocketIds(),this.emitAll("reconnect",e)}},function(e,t,r){e.exports=r(17),e.exports.parser=r(24)},function(e,t,r){function i(e,t){return this instanceof i?(t=t||{},e&&"object"==typeof e&&(t=e,e=null),e?(e=h(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=h(t.host).host),this.secure=null!=t.secure?t.secure:"undefined"!=typeof location&&"https:"===location.protocol,t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.agent=t.agent||!1,this.hostname=t.hostname||("undefined"!=typeof location?location.hostname:"localhost"),this.port=t.port||("undefined"!=typeof location&&location.port?location.port:this.secure?443:80),this.query=t.query||{},"string"==typeof this.query&&(this.query=l.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.withCredentials=!1!==t.withCredentials,this.timestampParam=t.timestampParam||"t",this.timestampRequests=t.timestampRequests,this.transports=t.transports||["polling","websocket"],this.transportOptions=t.transportOptions||{},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||t.rejectUnauthorized,this.forceNode=!!t.forceNode,this.isReactNative="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),("undefined"==typeof self||this.isReactNative)&&(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,void this.open()):new i(e,t)}var n=r(18),o=r(11),s=r(3)("engine.io-client:socket"),a=r(38),c=r(24),h=r(2),l=r(32);e.exports=i,i.priorWebsocketSuccess=!1,o(i.prototype),i.protocol=c.protocol,i.Socket=i,i.Transport=r(23),i.transports=r(18),i.parser=r(24),i.prototype.createTransport=function(e){s('creating transport "%s"',e);var t=function(e){var t={};for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);return t}(this.query);t.EIO=c.protocol,t.transport=e;var r=this.transportOptions[e]||{};return this.id&&(t.sid=this.id),new n[e]({query:t,socket:this,agent:r.agent||this.agent,hostname:r.hostname||this.hostname,port:r.port||this.port,secure:r.secure||this.secure,path:r.path||this.path,forceJSONP:r.forceJSONP||this.forceJSONP,jsonp:r.jsonp||this.jsonp,forceBase64:r.forceBase64||this.forceBase64,enablesXDR:r.enablesXDR||this.enablesXDR,withCredentials:r.withCredentials||this.withCredentials,timestampRequests:r.timestampRequests||this.timestampRequests,timestampParam:r.timestampParam||this.timestampParam,policyPort:r.policyPort||this.policyPort,pfx:r.pfx||this.pfx,key:r.key||this.key,passphrase:r.passphrase||this.passphrase,cert:r.cert||this.cert,ca:r.ca||this.ca,ciphers:r.ciphers||this.ciphers,rejectUnauthorized:r.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:r.perMessageDeflate||this.perMessageDeflate,extraHeaders:r.extraHeaders||this.extraHeaders,forceNode:r.forceNode||this.forceNode,localAddress:r.localAddress||this.localAddress,requestTimeout:r.requestTimeout||this.requestTimeout,protocols:r.protocols||void 0,isReactNative:this.isReactNative})},i.prototype.open=function(){var e;if(this.rememberUpgrade&&i.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))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)},i.prototype.setTransport=function(e){s("setting transport %s",e.name);var t=this;this.transport&&(s("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")}))},i.prototype.probe=function(e){function t(){if(f.onlyBinaryUpgrades){var t=!this.supportsBinary&&f.transport.supportsBinary;u=u||t}u||(s('probe transport "%s" opened',e),l.send([{type:"ping",data:"probe"}]),l.once("packet",(function(t){if(!u)if("pong"===t.type&&"probe"===t.data){if(s('probe transport "%s" pong',e),f.upgrading=!0,f.emit("upgrading",l),!l)return;i.priorWebsocketSuccess="websocket"===l.name,s('pausing current transport "%s"',f.transport.name),f.transport.pause((function(){u||"closed"!==f.readyState&&(s("changing transport and sending upgrade packet"),h(),f.setTransport(l),l.send([{type:"upgrade"}]),f.emit("upgrade",l),l=null,f.upgrading=!1,f.flush())}))}else{s('probe transport "%s" failed',e);var r=new Error("probe error");r.transport=l.name,f.emit("upgradeError",r)}})))}function r(){u||(u=!0,h(),l.close(),l=null)}function n(t){var i=new Error("probe error: "+t);i.transport=l.name,r(),s('probe transport "%s" failed because of error: %s',e,t),f.emit("upgradeError",i)}function o(){n("transport closed")}function a(){n("socket closed")}function c(e){l&&e.name!==l.name&&(s('"%s" works - aborting "%s"',e.name,l.name),r())}function h(){l.removeListener("open",t),l.removeListener("error",n),l.removeListener("close",o),f.removeListener("close",a),f.removeListener("upgrading",c)}s('probing transport "%s"',e);var l=this.createTransport(e,{probe:1}),u=!1,f=this;i.priorWebsocketSuccess=!1,l.once("open",t),l.once("error",n),l.once("close",o),this.once("close",a),this.once("upgrading",c),l.open()},i.prototype.onOpen=function(){if(s("socket open"),this.readyState="open",i.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause){s("starting upgrade probes");for(var e=0,t=this.upgrades.length;e<t;e++)this.probe(this.upgrades[e])}},i.prototype.onPacket=function(e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(s('socket receive: type "%s", data "%s"',e.type,e.data),this.emit("packet",e),this.emit("heartbeat"),e.type){case"open":this.onHandshake(JSON.parse(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 s('packet received with socket readyState "%s"',this.readyState)},i.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))},i.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)},i.prototype.setPing=function(){var e=this;clearTimeout(e.pingIntervalTimer),e.pingIntervalTimer=setTimeout((function(){s("writing ping packet - expecting pong within %sms",e.pingTimeout),e.ping(),e.onHeartbeat(e.pingTimeout)}),e.pingInterval)},i.prototype.ping=function(){var e=this;this.sendPacket("ping",(function(){e.emit("ping")}))},i.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},i.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(s("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},i.prototype.write=i.prototype.send=function(e,t,r){return this.sendPacket("message",e,t,r),this},i.prototype.sendPacket=function(e,t,r,i){if("function"==typeof t&&(i=t,t=void 0),"function"==typeof r&&(i=r,r=null),"closing"!==this.readyState&&"closed"!==this.readyState){(r=r||{}).compress=!1!==r.compress;var n={type:e,data:t,options:r};this.emit("packetCreate",n),this.writeBuffer.push(n),i&&this.once("flush",i),this.flush()}},i.prototype.close=function(){function e(){i.onClose("forced close"),s("socket closing - telling transport to close"),i.transport.close()}function t(){i.removeListener("upgrade",t),i.removeListener("upgradeError",t),e()}function r(){i.once("upgrade",t),i.once("upgradeError",t)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var i=this;this.writeBuffer.length?this.once("drain",(function(){this.upgrading?r():e()})):this.upgrading?r():e()}return this},i.prototype.onError=function(e){s("socket error %j",e),i.priorWebsocketSuccess=!1,this.emit("error",e),this.onClose("transport error",e)},i.prototype.onClose=function(e,t){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(s('socket close with reason: "%s"',e),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),this.writeBuffer=[],this.prevBufferLen=0)},i.prototype.filterUpgrades=function(e){for(var t=[],r=0,i=e.length;r<i;r++)~a(this.transports,e[r])&&t.push(e[r]);return t}},function(e,t,r){var i=r(19),n=r(21),o=r(35),s=r(36);t.polling=function(e){var t=!1,r=!1,s=!1!==e.jsonp;if("undefined"!=typeof location){var a="https:"===location.protocol,c=location.port;c||(c=a?443:80),t=e.hostname!==location.hostname||c!==e.port,r=e.secure!==a}if(e.xdomain=t,e.xscheme=r,"open"in new i(e)&&!e.forceJSONP)return new n(e);if(!s)throw new Error("JSONP disabled");return new o(e)},t.websocket=s},function(e,t,r){var i=r(20);e.exports=function(e){var t=e.xdomain,r=e.xscheme,n=e.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!t||i))return new XMLHttpRequest}catch(e){}try{if("undefined"!=typeof XDomainRequest&&!r&&n)return new XDomainRequest}catch(e){}if(!t)try{return new(self[["Active"].concat("Object").join("X")])("Microsoft.XMLHTTP")}catch(e){}}},function(e,t){try{e.exports="undefined"!=typeof XMLHttpRequest&&"withCredentials"in new XMLHttpRequest}catch(t){e.exports=!1}},function(e,t,r){function i(){}function n(e){if(c.call(this,e),this.requestTimeout=e.requestTimeout,this.extraHeaders=e.extraHeaders,"undefined"!=typeof location){var t="https:"===location.protocol,r=location.port;r||(r=t?443:80),this.xd="undefined"!=typeof location&&e.hostname!==location.hostname||r!==e.port,this.xs=e.secure!==t}}function o(e){this.method=e.method||"GET",this.uri=e.uri,this.xd=!!e.xd,this.xs=!!e.xs,this.async=!1!==e.async,this.data=void 0!==e.data?e.data:null,this.agent=e.agent,this.isBinary=e.isBinary,this.supportsBinary=e.sup