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Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach((function(t){Object.assign(e,t)})),e};0===this._pc.getStats.length?this._pc.getStats().then((function(t){var r=[];t.forEach((function(e){r.push(n(e))})),e(null,r)}),(function(t){return e(t)})):this._pc.getStats.length>0?this._pc.getStats((function(r){if(!t.destroyed){var i=[];r.result().forEach((function(e){var t={};e.names().forEach((function(n){t[n]=e.stat(n)})),t.id=e.id,t.type=e.type,t.timestamp=e.timestamp,i.push(n(t))})),e(null,i)}}),(function(t){return e(t)})):e(null,[])}},{key:"_maybeReady",value:function(){var e=this;if(!this._connected&&!this._connecting&&this._pcReady&&this._channelReady){this._connecting=!0;!function t(){e.destroyed||e.getStats((function(n,r){if(!e.destroyed){n&&(r=[]);var i={},o={},s={},a=!1;r.forEach((function(e){"remotecandidate"!==e.type&&"remote-candidate"!==e.type||(i[e.id]=e),"localcandidate"!==e.type&&"local-candidate"!==e.type||(o[e.id]=e),"candidatepair"!==e.type&&"candidate-pair"!==e.type||(s[e.id]=e)}));var u=function(t){a=!0;var n=o[t.localCandidateId];n&&(n.ip||n.address)?(e.localAddress=n.ip||n.address,e.localPort=Number(n.port)):n&&n.ipAddress?(e.localAddress=n.ipAddress,e.localPort=Number(n.portNumber)):"string"==typeof t.googLocalAddress&&(n=t.googLocalAddress.split(":"),e.localAddress=n[0],e.localPort=Number(n[1])),e.localAddress&&(e.localFamily=e.localAddress.includes(":")?"IPv6":"IPv4");var r=i[t.remoteCandidateId];r&&(r.ip||r.address)?(e.remoteAddress=r.ip||r.address,e.remotePort=Number(r.port)):r&&r.ipAddress?(e.remoteAddress=r.ipAddress,e.remotePort=Number(r.portNumber)):"string"==typeof t.googRemoteAddress&&(r=t.googRemoteAddress.split(":"),e.remoteAddress=r[0],e.remotePort=Number(r[1])),e.remoteAddress&&(e.remoteFamily=e.remoteAddress.includes(":")?"IPv6":"IPv4")};if(r.forEach((function(e){"transport"===e.type&&e.selectedCandidatePairId&&u(s[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&u(e)})),a||Object.keys(s).length&&!Object.keys(o).length){if(e._connecting=!1,e._connected=!0,e._chunk){try{e.send(e._chunk)}catch(n){return e.destroy(n)}e._chunk=null;var l=e._cb;e._cb=null,l(null)}"number"!=typeof e._channel.bufferedAmountLowThreshold&&(e._interval=setInterval((function(){return e._onInterval()}),150),e._interval.unref&&e._interval.unref()),e.emit("connect");var c=!0,f=!1,d=void 0;try{for(var h,g=e._pendingData[Symbol.iterator]();!(c=(h=g.next()).done);c=!0){var p=h.value;e.emit("data",p)}}catch(n){f=!0,d=n}finally{try{!c&&g.return&&g.return()}finally{if(f)throw d}}e._pendingData=[]}else setTimeout(t,100)}}))}()}}},{key:"_onInterval",value:function(){!this._cb||!this._channel||this._channel.bufferedAmount>f||this._onChannelBufferedAmountLow()}},{key:"_onSignalingStateChange",value:function(){this.destroyed||("stable"===this._pc.signalingState&&(this._isNegotiating=!1,this._queuedNegotiation?(this._queuedNegotiation=!1,this._needsNegotiation()):this.emit("negotiated")),this.emit("signalingStateChange",this._pc.signalingState))}},{key:"_onIceCandidate",value:function(e){this.destroyed||(e.candidate&&this.trickle?this.emit("signal",{type:"candidate",candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}}):e.candidate||this._iceComplete||(this._iceComplete=!0,this.emit("_iceComplete")),e.candidate&&this._startIceCompleteTimeout())}},{key:"_onChannelMessage",value:function(e){if(!this.destroyed){var t=e.data;t instanceof ArrayBuffer&&(t=u.Buffer.from(t)),this._connected?this.emit("data",t):this._pendingData.length<10&&this._pendingData.push(t)}}},{key:"_onChannelBufferedAmountLow",value:function(){if(!this.destroyed&&this._cb){var e=this._cb;this._cb=null,e(null)}}},{key:"_onChannelOpen",value:function(){this._connected||this.destroyed||(this._channelReady=!0,this._maybeReady())}},{key:"_onChannelClose",value:function(){this.destroyed||this.destroy()}},{key:"bufferSize",get:function(){return this._channel&&this._channel.bufferedAmount||0}},{key:"connected",get:function(){return this._connected&&"open"===this._channel.readyState}},{key:"isBufferedAmountHigh",get:function(){return this._channel.bufferedAmount>f}}]),t}(s.default);h.config={iceServers:[{urls:["stun:stun.l.google.com:19302","stun:global.stun.twilio.com:3478"]}],sdpSemantics:"unified-plan"},h.channelConfig={},t.default=h,e.exports=t.default},831:(e,t)=>{Object.defineProperty(t,"__esModule",{value:!0});var n=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}();function r(e){if(Array.isArray(e)){for(var t=0,n=Array(e.length);t<e.length;t++)n[t]=e[t];return n}return Array.from(e)}var i=function(){function e(){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.peerMap=new Map}return n(e,[{key:"isEmpty",value:function(){return 0===this.peerMap.size}},{key:"size",value:function(){return this.peerMap.size}},{key:"clear",value:function(){this.peerMap.clear()}},{key:"getPeers",value:function(){return[].concat(r(this.peerMap.values()))}},{key:"getPeerValues",value:function(){return this.peerMap.values()}},{key:"hasPeer",value:function(e){return this.peerMap.has(e)}},{key:"addPeer",value:function(e,t){this.peerMap.set(e,t)}},{key:"getPeerIds",value:function(){return[].concat(r(this.peerMap.keys()))}},{key:"removePeer",value:function(e){this.peerMap.delete(e)}},{key:"getPeersOrderByWeight",value:function(){var e=this.getAvailablePeers();return e.sort((function(e,t){return 0===t.weight?1:0===e.weight?-1:t.weight-e.weight})),e}},{key:"getPeer",value:function(e){return this.peerMap.get(e)}},{key:"getAvailablePeers",value:function(){return this.getPeers().filter((function(e){return e.isAvailableUrgently}))}}]),e}();t.default=i,e.exports=t.default},468:(e,t,n)=>{Object.defineProperty(t,"__esModule",{value:!0});var r,i=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),o=n(297),s=(r=o)&&r.__esModule?r:{default:r};var a=function(){function e(t,n){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:10;!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.engine=t,this.config=n,this.trickle=n.trickleICE,this.poolSize=r,this.pool=[],n.ICEPreflight&&this.reset(),this.trickle=!1}return i(e,[{key:"reset",value:function(){this.destroy();for(var e=0;e<this.poolSize;e++)this.pool.push(this._createPeer())}},{key:"_createPeer",value:function(){return new s.default(this.engine,void 0,void 0,!0,this.config,{trickle:this.trickle})}},{key:"getPeer",value:function(){if(0===this.pool.length)return this._createPeer();var e=this.pool.shift();return this.pool.length<5&&this.pool.push(this._createPeer()),e}},{key:"destroy",value:function(){var e=!0,t=!1,n=void 0;try{for(var r,i=this.pool[Symbol.iterator]();!(e=(r=i.next()).done);e=!0){r.value.destroy(!0)}}catch(e){t=!0,n=e}finally{try{!e&&i.return&&i.return()}finally{if(t)throw n}}this.pool=[]}},{key:"available",get:function(){return 0!==this.pool.length&&this.pool[0].signalMsgs.length>0}}]),e}();t.default=a,e.exports=t.default},89:(e,t,n)=>{Object.defineProperty(t,"__esModule",{value:!0});var r=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var r in n)Object.prototype.hasOwnProperty.call(n,r)&&(e[r]=n[r])}return e},i=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),o=d(n(911)),s=d(n(648)),a=d(n(816)),u=n(408),l=d(n(308)),c=d(n(524)),f=n(921);function d(e){return e&&e.__esModule?e:{default:e}}var h=function(e){function t(e,n,i,o,s){var a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:{};!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var l=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));l.channel=e.fetcher.channelId,l.logger=e.logger,l.config=s,l.isInitiator=o,l.options=a,l.intermediator=a.intermediator||null,l.signalMsgs=[],l.assignPeerId(n,i),l.platform="unknown",l.super=!1,l.mobile=!1,l.mobileWeb=!1,l.mobileNet=!1,l.connected=!1,l.msgQueue=[],l.miss=0,l.notifySet=new Set,l.bufArr=[],l.packetSize=u.DEFAULT_PACKET_SIZE,l.sendReqQueue=[],l.downloading=!1,l.uploading=!1,l.choked=!1,l.streamListeners=[],l.pieceMsg={},l.datasToSend=[],l.bytesUploaded=0,l.dataWriting=!1,l.timeSendRequest=0,l.timeReceivePiece=0,l.timeSendPiece=0,l.weight=0,l.peersConnected=1,l.uploadSpeed=0,l.currentLevel=0,l.currentPos=0,l.useBackupSignal=!1,l.gotPeersTS=0,l.webRTCConfig={};var c=l.options.stuns;if(c&&c.length>0){var f=[];c.forEach((function(e){l.logger.info("use stun "+e),f.push({urls:e})})),l.webRTCConfig.iceServers=f}return l.config.webRTCConfig&&(l.webRTCConfig=r({},l.config.webRTCConfig,l.webRTCConfig)),l.playlistMap=new Map,l._initPeerChannel(),l.notFatalClosed=!1,l.startSN=Number.MAX_SAFE_INTEGER,l.endSN=-1,l._loadedBytes=0,l}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,e),i(t,null,[{key:"defaultPacketSize",get:function(){return u.DEFAULT_PACKET_SIZE}},{key:"VERSION",get:function(){return"5"}}]),i(t,[{key:"assignPeerId",value:function(e,t){var n=this;this.remotePeerId=t,this.channelId=this.isInitiator?e+"-"+t:t+"-"+e,t&&(this.timeJoin=(0,u.getCurrentTs)(),this.dataExchangeTs=this.timeJoin,this.gotStatsTs=this.timeJoin,this._startTimer()),setTimeout((function(){n.signalMsgs.length>0&&n.emit(a.default.DC_SIGNAL_BATCH,n.signalMsgs)}),0)}},{key:"_startTimer",value:function(){var e=this;this.connTimeout=setTimeout((function(){e.logger.warn("dc "+e.channelId+" connection timeout"),e.emit(a.default.DC_TIMEOUT)}),15e3)}},{key:"cancelDownload",value:function(e,t,n){return!(!n||!this.downloading)&&(!(this.bufSN>e)&&(!(this.streamListeners.length>0)&&(this.logger.info("cancel download "+n+" to "+this.remotePeerId+" remain packets "+this.remainAttachments),this.timeReceivePiece=0,this.sendJson({event:a.default.DC_PIECE_CANCEL,sn:e,level:t,seg_id:n}))))}},{key:"addStreamListener",value:function(e,t,n){this.streamListeners.push({handler:n,peerId:t})}},{key:"removeStreamListener",value:function(e){this.streamListeners=this.streamListeners.filter((function(t){return t.peerId!==e||(t.handler(void 0,void 0,!0,"aborted by cancel"),!1)}))}},{key:"_initPeerChannel",value:function(){var e=this,t=new o.default({initiator:this.isInitiator,trickle:this.options.trickle||!1,config:this.webRTCConfig});this._datachannel=t,t.on("error",(function(t){var n=!0;(e.connected||e.notFatalClosed)&&(n=!1),e.emit(a.default.DC_ERROR,n)})),t.on("signal",(function(t){!e.useBackupSignal&&e.signalMsgs.length<10&&e.signalMsgs.push(t),e.emit(a.default.DC_SIGNAL,t)}));t.on("connect",(function(){for(e.logger.info("datachannel CONNECTED from "+(e.intermediator?"peer":"server")+" to "+e.remotePeerId),e.connected=!0,clearTimeout(e.connTimeout),e.signalMsgs=[],e.emit(a.default.DC_OPEN);e.msgQueue.length>0;){var t=e.msgQueue.shift();e.emit(t.event,t)}})),t.on("data",(function(t){var n=e.logger;if("string"==typeof t){var r=JSON.parse(t);if(!r)return void n.error("dc received string is null");if(!e.connected)return void e.msgQueue.push(r);var i=r.event,o=void 0;switch(o=i!==a.default.DC_PLAYLIST&&i!==a.default.DC_PEER_SIGNAL?"string: "+t:"event: "+i,n.debug("datachannel receive "+o+" from "+e.remotePeerId),i){case a.default.DC_HAVE:if(e.emit(r.event,r),!r.sn)return;e.config.live||(r.sn<e.startSN&&(e.startSN=r.sn),r.sn>e.endSN&&(e.endSN=r.sn));break;case a.default.DC_PIECE:e.downloading=!0,e.dataExchangeTs=(0,u.getCurrentTs)(),e.timeReceivePiece=performance.now(),e.pieceMsg=r,e._prepareForBinary(r.attachments,r.seg_id,r.sn,r.size),e.emit(r.event,r);break;case a.default.DC_PIECE_CANCEL:n.info("send queue "+e.datasToSend.length+", uploading "+e.uploading),e.emit(r.event,r),e.sendMsgPieceAbort("transfer canceled",r.seg_id);break;case a.default.DC_PIECE_NOT_FOUND:e._sendNextReq()||(e.downloading=!1),e.emit(r.event,r);break;case a.default.DC_REQUEST:e._handleRequestMsg(r);break;case a.default.DC_PIECE_ACK:e._handlePieceAck(r.seg_id,r.size,r.miss);break;case a.default.DC_STATS:e._handleStats(r);break;case a.default.DC_PLAYLIST:e.config.sharePlaylist&&e._handlePlaylist(r);break;case a.default.DC_METADATA:e._handleMetadata(r);break;case a.default.DC_PIECE_ABORT:e.downloading&&(e._notifyDownloadListenersAbort("aborted by upstream peer"),e.emit(a.default.DC_PIECE_ABORT,r)),e.downloading=!1;break;case a.default.DC_CHOKE:n.info("choke peer "+e.remotePeerId),e.choked=!0;break;case a.default.DC_UNCHOKE:n.info("unchoke peer "+e.remotePeerId),e.choked=!1;break;case a.default.DC_CLOSE:e.emit(r.event,r.fatal||!1);break;default:e.emit(r.event,r)}}else{if(!t)return void n.error("datachannel on data is undefined!");if(!e.downloading)return void n.warn("peer "+e.remotePeerId+" not downloading, data size "+t.byteLength+" pieceMsg "+JSON.stringify(e.pieceMsg));e._handleBinaryMsg(t)}})),t.once("close",(function(){e.emit(a.default.DC_CLOSE,!1)})),t.on("iceStateChange",(function(t,n){e.connected&&"disconnected"===t&&(e.logger.warn(e.remotePeerId+" disconnected"),e.emit(a.default.DC_DISCONNECT))}))}},{key:"sendJson",value:function(e){if(!this.remotePeerId)return!1;e.event!==a.default.DC_PLAYLIST&&e.event!==a.default.DC_PEER_SIGNAL?this.logger.debug("dc bufferSize "+this._datachannel.bufferSize+" send "+JSON.stringify(e)+" to "+this.remotePeerId):this.logger.debug("dc send event "+e.event+" to "+this.remotePeerId);var t=JSON.stringify(e);return t.length>u.DEFAULT_PACKET_SIZE?(this.logger.error("string to send is too large"),!1):this.send(t,!1)}},{key:"send",value:function(e){return!(arguments.length>1&&void 0!==arguments[1])||arguments[1]?(this.datasToSend.push(e),this.dataWriting||this._sendDataSync(),!0):this.sendImmediately(e)}},{key:"_sendDataSync",value:function(){var e=this;if(this._datachannel.connected&&0!==this.datasToSend.length){this.dataWriting=!0;var t=this.datasToSend.shift();t?("string"!=typeof t&&(this.bytesUploaded+=t.byteLength),this._datachannel.write(t,(function(t){if(t)return e.dataWriting=!1,e.logger.warn(t.message),void e.emit(a.default.DC_ERROR,!1);e._sendDataSync()}))):this.logger.error("sendDataSync data is undefined!")}else this.dataWriting=!1}},{key:"sendImmediately",value:function(e){if(this._datachannel.connected)try{return this._datachannel.send(e),!0}catch(e){this.logger.warn("datachannel "+this.channelId+" send data failed, close it"),this.emit(a.default.DC_ERROR,!1)}return!1}},{key:"sendMsgHave",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},i=n.reverse||void 0;delete n.reverse,this.sendJson(r({event:i?a.default.DC_HAVE_REVERSE:a.default.DC_HAVE,sn:e,seg_id:t},n))}},{key:"sendPieceNotFound",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};this.uploading=!1,this.sendJson(r({event:a.default.DC_PIECE_NOT_FOUND,seg_id:t||void 0,sn:e},n))}},{key:"sendPeers",value:function(e){this.sendJson({event:a.default.DC_PEERS,peers:e})}},{key:"sendPeersRequest",value:function(){this.sendJson({event:a.default.DC_GET_PEERS})}},{key:"sendMsgStats",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=r({event:a.default.DC_STATS,total_conns:e},t);this.sendJson(n)}},{key:"sendMsgPlaylist",value:function(e,t,n){var r=this.playlistMap.get(e);if(!(r&&r.seq>=n)){var i={event:a.default.DC_PLAYLIST,url:e,data:t,seq:n};this.playlistMap.set(e,{data:t,seq:n}),this.sendJson(i)}}},{key:"sendMsgSignal",value:function(e,t,n){return this.sendJson({event:a.default.DC_PEER_SIGNAL,action:"signal",to_peer_id:e,from_peer_id:t,data:n})}},{key:"sendMsgSignalReject",value:function(e,t,n){var r=arguments.length>3&&void 0!==arguments[3]&&arguments[3];return this.sendJson({event:a.default.DC_PEER_SIGNAL,action:"reject",to_peer_id:e,from_peer_id:t,reason:n,fatal:r})}},{key:"sendMetaData",value:function(e,t,n,r){var i=arguments.length>4&&void 0!==arguments[4]&&arguments[4];this.isInitiator&&(this.timeSendRequest=performance.now()),this.sendJson({event:a.default.DC_METADATA,field:e,platform:a.default.DC_PLAT_WEB,mobile:!!c.default.isMobile(),mobile_net:i,channel:this.channel,version:"1.22.1",sequential:t,peers:n,region:r})}},{key:"sendPartialBuffer",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};this.sendMsgPiece(e,n);for(var r=0;r<t.length;r++)this.send(t[r])}},{key:"sendMsgPiece",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.uploading){this.datasToSend=[],this.bytesUploaded=0,e.ext||(e.ext={}),e.ext.from&&t.from&&(t.from=e.ext.from+"->"+t.from),t.incompletes&&e.ext.incompletes&&(t.incompletes+=e.ext.incompletes),t=Object.assign({},e.ext,t);var n=r({},e,{ext:t});this.sendJson(n)}}},{key:"sendBuffer",value:function(e,t,n){var r=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{},i=r.reverse||void 0;if(delete r.reverse,n){var o=n.byteLength,s=0,u=0;o%this.packetSize==0?u=o/this.packetSize:(u=Math.floor(o/this.packetSize)+1,s=o%this.packetSize);var l={event:a.default.DC_PIECE,attachments:u,seg_id:t,sn:e,level:r.level,size:o,reverse:i};delete r.level,this.sendMsgPiece(l,r);var c=function(e,t,n,r){var i=[];if(r){for(var o=void 0,s=0;s<n-1;s++)o=e.slice(s*t,(s+1)*t),i.push(o);o=e.slice(e.byteLength-r,e.byteLength),i.push(o)}else for(var a=void 0,u=0;u<n;u++)a=e.slice(u*t,(u+1)*t),i.push(a);return i}(n,this.packetSize,u,s);this._sendBufferArray(c,i),this.uploading=!1,this.timeSendPiece=performance.now()}else this.logger.error("sendBuffer payload is undefined!")}},{key:"requestDataById",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]&&arguments[2],i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{},o=r({event:a.default.DC_REQUEST,seg_id:e,sn:t},i,{urgent:n});this.downloading?(this.logger.info(this.remotePeerId+" add req "+e+" in queue"),n?this.sendReqQueue.unshift(o):this.sendReqQueue.push(o)):this._realRequestData(o)}},{key:"requestDataBySN",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},i=r({event:a.default.DC_REQUEST,sn:e},n,{urgent:t});this.downloading?(this.logger.info("add req "+e+" in queue"),t?this.sendReqQueue.unshift(i):this.sendReqQueue.push(i)):this._realRequestData(i)}},{key:"_sendBufferArray",value:function(e){for(var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1]?e.reverse():e,n=0;n<t.length;n++)this.send(t[n])}},{key:"_realRequestData",value:function(e){this.sendJson(e),this.timeSendRequest=performance.now(),this.downloading=!0}},{key:"shouldWaitForRemain",value:function(e){return 0!==this.bufArrSize&&(0!==this.timeReceivePiece&&this.currentLoadSpeed()>=this.minRequiredSpeed(e))}},{key:"close",value:function(e){e||(this.notFatalClosed=!0),this.emit(a.default.DC_CLOSE,e)}},{key:"receiveSignal",value:function(e){e&&this._datachannel.signal(e)}},{key:"_notifyDownloadListenersAbort",value:function(e){var t=!0,n=!1,r=void 0;try{for(var i,o=this.streamListeners[Symbol.iterator]();!(t=(i=o.next()).done);t=!0){(0,i.value.handler)(void 0,void 0,!0,e)}}catch(e){n=!0,r=e}finally{try{!t&&o.return&&o.return()}finally{if(n)throw r}}this.streamListeners=[]}},{key:"destroy",value:function(){var e=!(arguments.length>0&&void 0!==arguments[0])||arguments[0];this.logger.info("destroy datachannel "+this.channelId),clearTimeout(this.chokeTimer),clearTimeout(this.connTimeout),this._notifyDownloadListenersAbort("upstream peer is closed");var t={event:a.default.DC_CLOSE,fatal:e};this.sendJson(t),this._datachannel.removeAllListeners(),this.removeAllListeners(),this._datachannel.destroy()}},{key:"_handleBinaryMsg",value:function(e){var t=this.pieceMsg,n=t.attachments,r=t.reverse;this.listenerCount(a.default.DC_RESPONSE)>0&&this.bufArr.push(e),this._loadedBytes+=e.byteLength,this.remainAttachments--;var i=r?this.remainAttachments+1:n-this.remainAttachments,o=0===this.remainAttachments;if(this.emit(a.default.DC_PIECE_DATA,this.bufSN,this.segId,e,i,o,this.pieceMsg),this.streamListeners.length>0){var s=!0,u=!1,l=void 0;try{for(var c,f=this.streamListeners[Symbol.iterator]();!(s=(c=f.next()).done);s=!0){(0,c.value.handler)(this.bufSN,this.segId,!1,e,o)}}catch(e){u=!0,l=e}finally{try{!s&&f.return&&f.return()}finally{if(u)throw l}}}if(o){if(this.streamListeners=[],this.timeSendRequest>0)if(this.super)this.weight=1;else{var d=this.expectedSize/(performance.now()-this.timeSendRequest);this.weight=this.weight>0?.6*this.weight+.4*d:d}this.sendJson({event:a.default.DC_PIECE_ACK,seg_id:this.segId,size:this.expectedSize,miss:this.miss||void 0}),this.timeSendRequest=0,this.timeReceivePiece=0,this._sendNextReq()||(this.downloading=!1),this._handleBinaryData(r)}}},{key:"_sendNextReq",value:function(){if(this.sendReqQueue.length>0){var e=this.sendReqQueue.shift();return this.logger.info("get msg from sendReqQueue "+JSON.stringify(e)),this._realRequestData(e),!0}return!1}},{key:"_handlePlaylist",value:function(e){var t=e.url,n=e.data,r=e.seq;this.playlistMap.set(t,{data:n,seq:r})}},{key:"getLatestPlaylist",value:function(e,t){if(!this.playlistMap.has(e))return null;var n=this.playlistMap.get(e);return n.seq<=t||n.seq>t+2?null:n}},{key:"_handleMetadata",value:function(e){var t=this.logger;if(this.isInitiator){var n=performance.now()-this.timeSendRequest;n>0&&(this.weight=1e5/n,t.info("handle Metadata from "+this.remotePeerId+" initial weight "+this.weight)),this.timeSendRequest=0}var r=e.channel;if(this.channel!==r)return t.error("peer channel "+r+" not matched!"),void this.emit(a.default.DC_ERROR,!0);if(e.super){t.info("got super peer "+this.remotePeerId),this.super=!0;var i=this.config.token;if(i&&e.token!==i)return t.warn("super peer token "+e.token+" not matched!"),void this.emit(a.default.DC_ERROR,!0)}switch(e.region&&(this.region=e.region),e.platform){case a.default.DC_PLAT_ANDROID:this.platform=a.default.DC_PLAT_ANDROID;break;case a.default.DC_PLAT_IOS:this.platform=a.default.DC_PLAT_IOS;break;case a.default.DC_PLAT_WEB:this.platform=a.default.DC_PLAT_WEB}if(this.mobile=e.mobile||!1,this.mobileNet=e.mobile_net||!1,this.mobileWeb=this.mobile&&this.platform===a.default.DC_PLAT_WEB||!1,this.sequential=e.sequential,t.info(this.remotePeerId+" platform "+this.platform+" sequential "+this.sequential),e.peers&&(this.peersConnected+=e.peers,t.info(this.remotePeerId+" now has "+this.peersConnected+" peers")),this.emit(a.default.DC_METADATA,e),e.field&&!this.config.live&&e.sequential){var o=e.field;if(Array.isArray(o))this._handleField(o);else for(var s in o)this._handleField(o[s])}}},{key:"_handleField",value:function(e){var t=this;e.forEach((function(e){e>=0&&(e<t.startSN&&(t.startSN=e),e>t.endSN&&(t.endSN=e))}))}},{key:"_handleStats",value:function(e){this.gotStatsTs=(0,u.getCurrentTs)();var t=e.total_conns;t>0&&this.peersConnected!==t&&(this.peersConnected=t,this.logger.info(this.remotePeerId+" now has "+this.peersConnected+" peers")),e.level&&(this.currentLevel=e.level),e.pos&&(this.currentPos=e.pos)}},{key:"_handleRequestMsg",value:function(e){if(this.dataExchangeTs=(0,u.getCurrentTs)(),this.uploading)return this.logger.warn(this.remotePeerId+" is uploading when receive request"),void this.sendPieceNotFound(e.sn,e.seg_id,{level:e.level});this.uploading=!0,this.emit(a.default.DC_REQUEST,e)}},{key:"_handlePieceAck",value:function(e,t,n){0!==this.timeSendPiece&&(this.uploadSpeed=Math.round(t/(performance.now()-this.timeSendPiece)*2),this.timeSendPiece=0,this.logger.info(this.remotePeerId+" uploadSpeed is "+this.uploadSpeed)),n>0&&this.logger.warn("peer "+this.remotePeerId+" miss "+n),this.bytesUploaded>0&&this.emit(a.default.DC_PIECE_ACK,{seg_id:e,size:t})}},{key:"_prepareForBinary",value:function(e,t,n,r){this.bufArr=[],this._loadedBytes=0,this.remainAttachments=e,this.segId=t,this.bufSN=n,this.expectedSize=r}},{key:"_handleBinaryData",value:function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0];if(this.listenerCount(a.default.DC_RESPONSE)>0){e&&this.bufArr.reverse();var t=f.Buffer.concat(this.bufArr),n=t.byteLength;if(n===this.expectedSize){var r=t.buffer,i=new l.default(this.bufSN,this.segId,r,this.remotePeerId,this.pieceMsg.level);this.emit(a.default.DC_RESPONSE,i,this.weight)}else this.logger.error(this.segId+" expectedSize "+this.expectedSize+" != byteLength "+n)}this.bufArr=[]}},{key:"checkIfNeedChoke",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]&&arguments[0],n=this.logger,r=performance.now()-this.timeSendRequest;if((t||!(r<1500))&&(this.miss++,n.info(this.remotePeerId+" miss "+this.miss),this.miss>2&&!this.choked)){this.choked=!0;var i=30*this.miss;i<=150?(n.warn("datachannel "+this.channelId+" is choked"),this.chokeTimer=setTimeout((function(){e.choked=!1,n.warn("datachannel "+e.channelId+" is unchoked")}),1e3*i)):n.warn("datachannel "+this.channelId+" is choked permanently")}}},{key:"loadtimeout",value:function(){var e=this.logger,t=this.pieceMsg;return e.warn("timeout while downloading from "+this.remotePeerId+", "+this.bufArrSize+" of "+t.attachments+" packets loaded"),this.checkIfNeedChoke(),!0}},{key:"sendMsgPieceAbort",value:function(e,t){if(arguments.length>2&&void 0!==arguments[2]&&arguments[2]||this.uploading||0!==this.datasToSend.length){this.uploading=!1,this.datasToSend=[],this._handlePieceAck(t,this.bytesUploaded,0),this.bytesUploaded=0;var n={event:a.default.DC_PIECE_ABORT,reason:e};return this.sendJson(n)}}},{key:"loadedBytes",value:function(){return this._loadedBytes}},{key:"currentLoadSpeed",value:function(){return 0===this.timeReceivePiece?0:this.loadedBytes()/(performance.now()-this.timeReceivePiece)}},{key:"minRequiredSpeed",value:function(e){return(this.pieceMsg.size-this.loadedBytes())/e}},{key:"isAvailable",get:function(){return this.downloadNum<2&&!this.choked}},{key:"isAvailableUrgently",get:function(){return!this.downloading&&!this.choked}},{key:"downloadNum",get:function(){return this.downloading?this.sendReqQueue.length+1:0}},{key:"bufArrSize",get:function(){return this.downloading?this.pieceMsg.attachments-this.remainAttachments:0}}]),t}(s.default);t.default=h,e.exports=t.default},9:(e,t)=>{Object.defineProperty(t,"__esModule",{value:!0});var n=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}();var r=function(){function e(){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.internalMap=new Map}return n(e,[{key:"has",value:function(e){return this.internalMap.has(e)}},{key:"set",value:function(e,t){if(this.internalMap.has(e)){var n=this.internalMap.get(e);if(n&&!n.includes(t))return void n.push(t)}this.internalMap.set(e,[t])}},{key:"setPeerUnknown",value:function(e){this.internalMap.set(e,null)}},{key:"checkIfPeerUnknown",value:function(e){return this.internalMap.has(e)&&!this.internalMap.get(e)}},{key:"getAllPeerIds",value:function(e){var t=this.internalMap.get(e);return t||[]}},{key:"get",value:function(e){return this.getOnePeerId(e)}},{key:"getOnePeerId",value:function(e){if(this.internalMap.has(e)&&this.internalMap.get(e))return this.internalMap.get(e)[0];return null}},{key:"delete",value:function(e){this.internalMap.delete(e)}},{key:"clear",value:function(){this.internalMap.clear()}}]),e}();t.default=r,e.exports=t.default},540:(e,t,n)=>{Object.defineProperty(t,"__esModule",{value:!0});var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=u(n(648)),o=u(n(816)),s=u(n(831)),a=n(408);function u(e){return e&&e.__esModule?e:{default:e}}var l=Symbol("shareOnly"),c=function(e){function t(e,n){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var r=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return r.engine=e,r.config=n,r.logger=e.logger,r.bufMgr=null,r.peerManager=new s.default,r.fragLoading=!1,r._setupEngine&&r._setupEngine(),r.startCheckConnsTimer(),r.dcDownloadTimeout=n.dcDownloadTimeout,r[l]=!1,r.downloadOnly=!1,r.loadedPeerNum=0,r.minConns=5,r}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,e),r(t,[{key:"startCheckConnsTimer",value:function(){var e=this;this.checkConnsTimer=setInterval((function(){e.logger.info("start check conns");var t=e.getStatsForPeer(),n=e.peersNum,r=(0,a.getCurrentTs)();e.getPeers().forEach((function(i){n>e.minConns+1&&(r-i.dataExchangeTs>120||r-i.gotStatsTs>=83)?(e.logger.warn("close dead peer "+i.remotePeerId+" level "+i.currentLevel),i.close(!1),n--):i.connected&&i.sendMsgStats(n,t)}))}),4e4)}},{key:"getStatsForPeer",value:function(){return{}}},{key:"_handlePieceAborted",value:function(){}},{key:"requestPeers",value:function(){var e=(0,a.getCurrentTs)(),t=0,n=!0,r=!1,i=void 0;try{for(var o,s=this.getPeers()[Symbol.iterator]();!(n=(o=s.next()).done);n=!0){var u=o.value;u.mobileNet||u.super||(e-u.gotPeersTS<60?this.logger.warn(u.remotePeerId+" just got peers, ignored"):(u.sendPeersRequest(),u.gotPeersTS=e,t++))}}catch(e){r=!0,i=e}finally{try{!n&&s.return&&s.return()}finally{if(r)throw i}}return t}},{key:"chokePeerRequest",value:function(e){var t={event:o.default.DC_CHOKE};e?e.sendJson(t):this._broadcastToPeers(t)}},{key:"unchokePeerRequest",value:function(e){var t={event:o.default.DC_UNCHOKE};e?e.sendJson(t):this._broadcastToPeers(t)}},{key:"stopRequestFromPeers",value:function(){var e=!0,t=!1,n=void 0;try{for(var r,i=this.getPeers()[Symbol.iterator]();!(e=(r=i.next()).done);e=!0){r.value.choked=!0}}catch(e){t=!0,n=e}finally{try{!e&&i.return&&i.return()}finally{if(t)throw n}}}},{key:"resumeRequestFromPeers",value:function(){var e=!0,t=!1,n=void 0;try{for(var r,i=this.getPeers()[Symbol.iterator]();!(e=(r=i.next()).done);e=!0){r.value.choked=!1}}catch(e){t=!0,n=e}finally{try{!e&&i.return&&i.return()}finally{if(t)throw n}}}},{key:"setShareOnly",value:function(){this[l]=!0}},{key:"deletePeer",value:function(e){e.downloading&&this._handlePieceAborted(e.remotePeerId),this.peerManager.hasPeer(e.remotePeerId)&&this.peerManager.removePeer(e.remotePeerId),this._peersStats(this.peerManager.getPeerIds())}},{key:"getPeers",value:function(){return[].concat(function(e){if(Array.isArray(e)){for(var t=0,n=Array(e.length);t<e.length;t++)n[t]=e[t];return n}return Array.from(e)}(this.peerManager.getPeerValues()))}},{key:"addPeer",value:function(e){var t=this.logger;this.peerManager.addPeer(e.remotePeerId,e),this[l]&&(e.choked=!0);var n=this.peerManager.getPeerIds();this._peersStats(n);var r=e.region||{},i=r.asn,o=r.country;t.info("add peer "+e.remotePeerId+" country "+(o||"")+" asn "+(i||"")+", now has "+n.length+" peers")}},{key:"hasPeer",value:function(e){return this.peerManager.hasPeer(e)}},{key:"getIdlePeer",value:function(){return this.peerManager.getAvailablePeers()}},{key:"onBufferManagerSegAdded",value:function(e){}},{key:"_broadcastLost",value:function(e,t,n,r){this.config.live||this._broadcastToPeers({event:o.default.DC_LOST,sn:e,seg_id:t||void 0,level:n},r)}},{key:"destroy",value:function(){var e=this.logger;this.peersNum>0&&this.peerManager.clear(),this.removeAllListeners(),clearInterval(this.checkConnsTimer),clearTimeout(this.checkTimer),e.warn("destroy BtScheduler")}},{key:"notifyPeersLoaded",value:function(e){}},{key:"_setupDC",value:function(e){var t=this,n=this.logger;e.on(o.default.DC_PIECE_ACK,(function(r){r.size&&(t.engine.fetcher.reportUploaded(r.size),n.info("uploaded "+r.seg_id+" size "+r.size+" to "+e.remotePeerId))})).on(o.default.DC_PIECE_ABORT,(function(r){n.warn("peer "+e.remotePeerId+" download aborted, reason "+r.reason),t._handlePieceAborted(e.remotePeerId)})).on(o.default.DC_DISCONNECT,(function(){t.peersNum>=t.minConns&&(t.logger.warn("close disconnected peer "+e.remotePeerId),e.close(!1))}))}},{key:"_broadcastToPeers",value:function(e,t){var n=!0,r=!1,i=void 0;try{for(var o,s=this.getPeers()[Symbol.iterator]();!(n=(o=s.next()).done);n=!0){var a=o.value;t&&a===t||a.sendJson(e)}}catch(e){r=!0,i=e}finally{try{!n&&s.return&&s.return()}finally{if(r)throw i}}}},{key:"_peersStats",value:function(e){this.engine.emitEvent("peers",e);var t=this.engine.config.getPeersInfo;(0,a.isFunction)(t)&&t(e)}},{key:"startCheckPeersTimer",value:function(){var e=this;this.logger.info("startCheckPeersTimer");this.checkTimer=setTimeout((function t(){e.checkPeers();var n=1e3*(0,a.calCheckPeersDelay)(e.loadedPeerNum);e.loadedPeerNum=0,e.checkTimer=setTimeout(t,n)}),2e4)}},{key:"removeStreamListener",value:function(e,t){var n=this.requestingMap.get(e);if(n)n.removeStreamListener(t);else{var r=this.segmentBuilderMap.get(e);r&&r.removeStreamListener(t)}}},{key:"setTargetPeersFromGroup",value:function(e,t,n,r){if(e.hasReversePeer){if((n=t.concat(n)).length>0)return this.targetPeers.forwardPeer=n[0],!0}else if(e.hasForwardPeer&&(r=t.concat(r)).length>0)return this.targetPeers.reversePeer=r[0],!0;return t.length>0?(e.hasForwardBuffer?this.targetPeers.reversePeer=t[0]:this.targetPeers.forwardPeer=t[0],!0):(this.targetPeers=(0,a.getBestTargetPair)(t,n,r),this.targetPeers.some((function(e){return!!e})))}},{key:"isMobileNet",get:function(){return this.engine.isMobileNet}},{key:"hasPeers",get:function(){return this.peersNum>0}},{key:"peersNum",get:function(){return this.peerManager.size()}},{key:"hasIdlePeers",get:function(){var e=this.logger,t=this.getIdlePeer().length;if(e.info("peers: "+this.peersNum+" idle peers: "+t),t<this.peersNum){var n=this.peerManager.getPeers(),r=n.filter((function(e){return e.downloading}));e.warn("downloading: "+r.length+" choked: "+n.filter((function(e){return e.choked})).length);var i=!0,o=!1,s=void 0;try{for(var a,u=r[Symbol.iterator]();!(i=(a=u.next()).done);i=!0){var l=a.value;e.warn(l.remotePeerId+" loading "+l.segId+" remains "+l.remainAttachments+" total "+l.pieceMsg.attachments)}}catch(e){o=!0,s=e}finally{try{!i&&u.return&&u.return()}finally{if(o)throw s}}}return t>0}},{key:"bufferManager",set:function(e){var t=this;this.bufMgr=e,e.on(o.default.BM_LOST,(function(e){var n=e.sn,r=e.segId,i=e.next,o=e.level;t._broadcastLost(n,r,o),t.onBufferManagerLost(n,r,i,o)})).on(o.default.BM_SEG_ADDED,(function(e){t.onBufferManagerSegAdded(e)}))}}]),t}(i.default);t.default=c,e.exports=t.default},555:(e,t,n)=>{Object.defineProperty(t,"__esModule",{value:!0});var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=a(n(648)),o=a(n(816)),s=a(n(524));function a(e){return e&&e.__esModule?e:{default:e}}function u(e){if(Array.isArray(e)){for(var t=0,n=Array(e.length);t<e.length;t++)n[t]=e[t];return n}return Array.from(e)}var l=function(e){function t(e,n){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var i=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));i.isSequential=r,i.logger=n.logger;var o=e.browserInfo.device;return i.maxBufSize=o===s.default.device.PC_WEB||o===s.default.device.PC_NATIVE?n.memoryCacheLimit.pc:n.memoryCacheLimit.mobile,n.live&&(i.maxBufSize=36700160),i._segPool=new Map,i._currBufSize=0,i.id2Sn=new Map,i.overflowed=!1,i}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,e),r(t,[{key:"hasSegOfId",value:function(e){if(this.isSequential){var t=this.id2Sn.get(e);return this._segPool.has(t)}return this._segPool.has(e)}},{key:"hasSegOfSN",value:function(e){return!!this.isSequential&&this._segPool.has(e)}},{key:"_calSegPoolSize",value:function(){var e=0;return this._segPool.forEach((function(t){e+=t.size})),e}},{key:"putSeg",value:function(e){if(this._currBufSize>=1.5*this.maxBufSize&&(this._currBufSize=this._calSegPoolSize(),this._currBufSize>=1.5*this.maxBufSize&&(this.clear(),this.overflowed=!1)),this.isSequential){if(this._segPool.has(e.sn))return;this._addSequentialSeg(e)}else{if(this._segPool.has(e.segId))return;this._addUnsequentialSeg(e)}}},{key:"_addSequentialSeg",value:function(e){var t=this.logger,n=e.segId,r=e.sn,i=e.size;this.id2Sn.set(n,r),this._segPool.set(r,e),this._currBufSize+=parseInt(i);var s=this._segPool.size;if(this.emit(""+o.default.BM_ADDED_SN_+e.sn,e),this.emit(o.default.BM_SEG_ADDED,e),!(this._currBufSize<this.maxBufSize||s<=5)){var a=Array.from(this._segPool.keys()).sort((function(e,t){return e-t})),u=0;do{if(u++>10){console.error("too much loops in SegmentCache");break}var l=a.shift();if(void 0!==l){var c=a[0],f=this._segPool.get(l);if(f){var d=f.size;this._currBufSize-=parseInt(d),this._segPool.delete(l),this.id2Sn.delete(f.segId),t.info("pop seg "+l+" size "+d+" currBufSize "+this._currBufSize),this.overflowed||(this.overflowed=!0),this.emit(o.default.BM_LOST,{sn:l,segId:f.segId,next:c,level:f.level})}else t.error("lastSeg not found")}else t.error("lastSN not found")}while(this._currBufSize>=this.maxBufSize&&this._segPool.size>5)}}},{key:"_addUnsequentialSeg",value:function(e){var t=this.logger,n=e.segId,r=e.size;this._segPool.set(n,e),this._currBufSize+=parseInt(r),this.emit(""+o.default.BM_ADDED_SEG_+e.segId,e),this.emit(o.default.BM_SEG_ADDED,e);for(var i=0;this._currBufSize>=this.maxBufSize&&this._segPool.size>5;){if(i++>10){console.error("too much loops in SegmentCache");break}var s=[].concat(u(this._segPool.values())).shift(),a=s.segId,l=s.size;this._currBufSize-=parseInt(l),t.info("pop seg "+a+" size "+l),this._segPool.delete(a),this.overflowed||(this.overflowed=!0),this.emit(o.default.BM_LOST,{sn:-1,segId:a,level:s.level})}}},{key:"getSegById",value:function(e){if(this.isSequential){var t=this.id2Sn.get(e);return this._segPool.get(t)}return this._segPool.get(e)}},{key:"getSegIdBySN",value:function(e){var t=this._segPool.get(e);return t?t.segId:null}},{key:"getSegBySN",value:function(e){if(this.isSequential)return this._segPool.get(e);throw new Error("fatal error in SegmentCache")}},{key:"clear",value:function(){this.logger.warn("clear segment cache"),this._segPool.clear(),this.id2Sn.clear(),this._currBufSize=0}},{key:"destroy",value:function(){this.clear(),this.removeAllListeners()}},{key:"currBufSize",get:function(){return this._currBufSize}}]),t}(i.default);t.default=l,e.exports=t.default},308:(e,t)=>{Object.defineProperty(t,"__esModule",{value:!0});var n=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in 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r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),o=h(n(648)),s=h(n(431)),a=h(n(299)),u=h(n(816)),l=n(408),c=h(n(828)),f=n(406),d=h(n(148));function h(e){return e&&e.__esModule?e:{default:e}}var g="SW_GEOIP_KEY",p=2592e5,v=432e5,y="TRACKER_EXPT",m="IPAPI_ERROR",_="ZXU",b="uY2R",P="LmNv",S="uYnll",w="bQ==",C="aGsuc3d",E="hcm1j",k="bG91ZC",I="5uZXQ=",T=Symbol("httpDownloaded"),O=Symbol("p2pDownloaded"),R=Symbol("p2pUploaded"),A=function(e){function t(e,n,i,o,u){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var c=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this)),f=void 0;c.config=e.config;var h=c.config.announceLocation;switch(c.config.trackerZone&&(h=c.config.trackerZone),h){case"hk":f=C+E+k+I;break;case"us":f="dXMuaGR0dmNsb3VkLmNvbQ==";break;default:f=_+b+S+P+w}c.engine=e,c.key=n||void 0,c.baseUrl=o||"https://"+self.atob(f)+"/v1",c.channelId=self.btoa(i),c.timestamp=(0,l.getCurrentTs)(),c.health=new d.default;var g=a.default.parseURL(c.baseUrl).netLoc;c.announce=g.replace(/\/\//,"");var p=function(e,t,n,r,i,o){var a=location.hostname;"localhost"===a&&o&&(a=o+"."+a);function u(e,t,n,r,i,o){return(0,s.default)(e+t+n+r+i,o)}var l=u(a,t,n,r,i,e).substr(0,8);return l}(c.timestamp,"1.22.1",c.announce,c.channelId,u.type,c.key);return c.native=!!u.bundle,c.announceInfo=r({},u,{channel:c.channelId,ts:c.timestamp,version:"1.22.1",v:p,announce:c.announce,k:L(c.key)}),c.announceURL=c.baseUrl+"/channel",c.reportFails=0,c.statsRequesting=!1,c.forbidden=!1,c.failConns=0,c.totalHTTPDownloaded=0,c.totalP2PDownloaded=0,c.totalP2PUploaded=0,c[T]=0,c[O]=0,c[R]=0,c.speed=0,c.offline=!1,c.errsBufStalled=0,c.mediaRequests=0,c.errsInternalExpt=0,c}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,e),i(t,[{key:"geoipRequest",value:function(){var e=this.engine.logger;return new Promise((function(t,n){if((0,f.hasItemUnexpired)(g)){var r=(0,f.getItem)(g);e.info("found local geo data"),t(r)}else fetch(self.atob("aHR0cHM6Ly9wcm8uaXAtYXBpLmNvbS9qc29uP2ZpZWxkcz0yMTgxODI2JmtleT1YT3BpYW5zUmdZeEdUaG8=")).then((function(e){return e.json()})).then((function(e){if("success"!==e.status){var n=new Error("preflight status "+e.status);throw(0,c.default)(n,m)}var r=e.mobile?v:p;(0,f.setItemWithExpiration)(g,e,r),t(e)})).catch((function(e){n(e)}))}))}},{key:"btAnnouncePreflight",value:function(){var e=this,t=this.engine.logger;return this.announceInfo.asn?this.btAnnounce():(t.info("preflight ip-api"),Promise.race([this.geoipRequest(),new Promise((function(e,t){setTimeout((function(){t((0,c.default)(new Error("request timeout"),m))}),600)}))]).then((function(t){return e._parseGeoResponse(t),e.btAnnounce()})).catch((function(n){if(n.code!==y){var r=(0,f.getItem)(g);return r&&(t.info("use expired ipData"),e._parseGeoResponse(r)),e.btAnnounce()}throw n})))}},{key:"_parseGeoResponse",value:function(e){var t=e.lat,n=e.lon,i=e.isp,o=e.as,s=e.mobile,a=e.countryCode;e.continentCode;s&&(this.announceInfo.netType="cellular");var u=o.split(" ")[0].substr(2);this.announceInfo=r({},this.announceInfo,{lat:t,lon:n,isp:i,asn:u,country:a})}},{key:"btAnnounce",value:function(){var e=this,t=this.engine.logger;return new Promise((function(n,i){fetch(e.announceURL,{headers:e._requestHeader,method:"POST",body:JSON.stringify(e.announceInfo)}).then((function(e){if(!e.ok){var t=e.status>=500&&e.status<600;throw(0,c.default)(new Error("server response code is "+e.status),y,{retry:t})}return e.json()})).then((function(t){if(!e.engine)throw(0,c.default)(new Error("runtime error"),y,{retry:!1});var i=t.data;if(i.f&&(e.forbidden=!0),-1===t.ret){var o=t.data,s=o.code,a=o.msg;throw(0,c.default)(new Error(a),y,{retry:s>=5e3})}if(i.info&&console.info(""+i.info),i.warn&&console.warn(""+i.warn),i.min_conns||(i.min_conns=8),(!i.rejected||i.rejected&&i.share_only)&&i.id&&i.report_interval&&i.peers){if(e.peerId=e.id=i.id,i.report_interval<20&&(i.report_interval=20),e.btStats(i.report_interval),e.getPeersURL=e.baseUrl+"/channel/"+e.channelId+"/node/"+e.peerId+"/peers",e.statsURL=e.baseUrl+"/channel/"+e.channelId+"/node/"+e.peerId+"/stats",!e.announceInfo.asn&&i.asn){var u=i.country,l=i.asn,d=i.mobile,h=i.isp,m=i.lat,_=i.lon;e.announceInfo=r({},e.announceInfo,{country:u,asn:l}),(0,f.setItemWithExpiration)(g,{countryCode:u,as:"AS"+l,mobile:d,isp:h,lat:m,lon:_,status:"success"},d?v:p)}n(i)}else e.engine&&(e.engine.p2pEnabled=!1)})).catch((function(e){t.error("btAnnounce error "+e);var n=e.code||y,r=!e.code||e.retry;i((0,c.default)(e,n,{retry:r}))}))}))}},{key:"btStats",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:10;this.heartbeater=setInterval((function(){e.postStats()}),1e3*t)}},{key:"postStatsWithBeacon",value:function(){if(!this.offline){this.offline=!0;var e={off:!0};this.statsRequesting||(e=r({},e,this._makeStatsBody())),this.statsURL&&navigator.sendBeacon&&navigator.sendBeacon(this.statsURL,JSON.stringify(e))}}},{key:"postStats",value:function(){var e=this,t=this.engine.logger;this.statsRequesting=!0,fetch(this.statsURL,{method:"POST",body:JSON.stringify(this._makeStatsBody())}).then((function(t){return e.statsRequesting=!1,e.reportFails=0,t.text()})).then((function(n){var r=void 0;if(-1===(r=n?JSON.parse(n):{ret:0,data:{}}).ret)clearInterval(e.heartbeater),t.error(r.data.msg+" code "+r.data.code),e.engine.emit(u.default.RESTART_P2P);else{var i=e.lastStats||{},o=i.http,s=void 0===o?0:o,a=i.p2p,l=void 0===a?0:a,c=i.share,f=void 0===c?0:c,d=i.failConns,h=void 0===d?0:d,g=i.rebuffers,p=void 0===g?0:g,v=i.requests,y=void 0===v?0:v,m=i.errsInternalExpt,_=void 0===m?0:m;e[T]>=s&&(e[T]-=s),e[O]>=l&&(e[O]-=l),e[R]>=f&&(e[R]-=f),e.failConns>=h&&(e.failConns-=h),e.errsBufStalled>=p&&(e.errsBufStalled-=p),e.mediaRequests>=y&&(e.mediaRequests-=y),e.errsInternalExpt>=_&&(e.errsInternalExpt-=_),e.exptMsg&&(e.exptMsg=void 0)}})).catch((function(n){t.error("btStats error "+n),e.statsRequesting=!1,e.reportFails++,e.reportFails>=3&&clearInterval(e.heartbeater)}))}},{key:"btGetPeers",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]&&arguments[1],r=this.engine.logger,i=this.announceInfo,o={exclusions:e,asn:i.asn,country:i.country,ratio:this.health.healthRatio,urgent:n||void 0},s={};return this.engine.getExtraForPeersRequest&&(s=this.engine.getExtraForPeersRequest()),o=Object.assign({},o,s),new Promise((function(e,n){t.reportFails>=3?n(new Error("reportFails >= 3")):fetch(t.getPeersURL,{headers:t._requestHeader,method:"POST",body:JSON.stringify(o)}).then((function(e){return e.json()})).then((function(t){-1===t.ret?n(t.data.msg):e(t.data)})).catch((function(e){r.error("btGetPeers error "+e),n(e)})).finally((function(){t.health.resetTraffic()}))}))}},{key:"increFailConns",value:function(){this.failConns++}},{key:"increRebuffers",value:function(){this.errsBufStalled++}},{key:"increMediaRequests",value:function(){this.mediaRequests++,this.engine.emit(u.default.MEDIA_REBUFFER,this.errsBufStalled>=2)}},{key:"reportFlow",value:function(e){var t=Math.round(e/1024);this.engine.emitEvent("httpDownloaded",t),this[T]+=t,this.totalHTTPDownloaded+=t,this.health.recordHttp(t),this._emitStats()}},{key:"reportDCTraffic",value:function(e,t){var n=Math.round(e/1024);this[O]+=n,this.totalP2PDownloaded+=n,this.health.recordP2p(n),this.speed=Math.round(t),this.engine.emitEvent("p2pDownloaded",n,this.speed),this._emitStats()}},{key:"reportUploaded",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,t=Math.round(e/1024);this.engine.emitEvent("p2pUploaded",t),this.totalP2PUploaded+=t,this.health.recordShare(t),this[R]+=t,this._emitStats()}},{key:"destroy",value:function(){this.engine.logger.warn("destroy fetcher"),this.removeAllListeners(),clearInterval(this.heartbeater)}},{key:"_emitStats",value:function(){var e=this.totalHTTPDownloaded,t=this.totalP2PDownloaded,n=this.totalP2PUploaded;this.engine.emit("stats",{totalHTTPDownloaded:e,totalP2PDownloaded:t,totalP2PUploaded:n,p2pDownloadSpeed:this.speed});var r=this.config.getStats;(0,l.isFunction)(r)&&r(t,n,e,this.speed)}},{key:"_makeStatsBody",value:function(){var e=this.announceInfo,t=e.asn,n=e.country,r={totalConns:this.engine.tracker.totalConns,failConns:this.failConns,rebuffers:this.errsBufStalled||void 0,requests:this.mediaRequests||void 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t=this.engine,n=this.config,r=this.fetcher,i=r.btAnnounce,o=r.btAnnouncePreflight,s=n.wsSignalerAddr,a=n.wifiOnly;(n.geoIpPreflight?o:i).call(r).then((function(n){if(e.scheduler){t.peerId=e.peerId=n.id,e.minConns=n.min_conns,e.scheduler.minConns=e.minConns;var i=n.peers;e.scheduler.notifyPeersLoaded(i.length),t.netType=r.announceInfo.netType,(n.wifi_only||a)&&t.isMobileNet&&(e.scheduler.downloadOnly=!0,e.logger.info("downloadOnly mode"));var o=s.main,u=s.backup;n.signal&&!n.signal2&&(u=void 0),e.signalerWs=e._initSignalerWs(n.signal||o,n.signal2||u,n.token,n.token2),0===i.length?e.requestMorePeers():e.peers=e._filterPeers(i),t.emitEvent("peerId",e.peerId),n.stun&&n.stun.length>0&&(e.stuns=n.stun),n.debug&&(e.logger.enableDebug(),n.log_url&&(e.logUploader=new p.default(n.log_url,e.fetcher.key||location.hostname,e.peerId,"1.22.1"),e.logger.setUploader(e.logUploader))),t.onTrackerResume&&t.onTrackerResume(n),n.fuse_rate&&(e.fuseRate=n.fuse_rate),n.overload&&(e.overloaded=!0,e.logger.warn("server overloaded, degrade signaling")),e.logger.info("announce request response "+JSON.stringify(n,null,2))}})).catch((function(n){if(e.scheduler&&("TRACKER_EXPT"===n.code&&t.emitEvent(c.default.EXCEPTION,n),e.scheduler.notifyPeersLoaded(0),n.retry)){var r=(0,l.randomNum)(15e3,4e4);e.logger.warn("announce retry after "+r+"ms"),e.announceTimer=setTimeout((function(){e.resumeP2P()}),r)}}))}}},{key:"stopP2P",value:function(){this.fetcher.postStatsWithBeacon(),this.fetcher.destroy(),this.fetcher=null,this.requestMorePeers(!0),this.scheduler.destroy(),this.scheduler=null,this.signalerWs&&(this.signalerWs.destroy(),this.signalerWs=null),this.peers=[];var e=!0,t=!1,n=void 0;try{for(var r,i=this.DCMap.values()[Symbol.iterator]();!(e=(r=i.next()).done);e=!0){r.value.destroy(!0)}}catch(e){t=!0,n=e}finally{try{!e&&i.return&&i.return()}finally{if(t)throw n}}this.DCMap.clear(),this.peerPool.destroy(),this.peerPool=null,this.failedDCSet.clear(),this.notFoundDCSet.clear(),this.logUploader&&(this.logUploader.destroy(),this.logUploader=null),this.logger.warn("tracker stop p2p")}},{key:"destroy",value:function(){this.stopP2P(),this.removeAllListeners(),clearTimeout(this.announceTimer),clearTimeout(this.requestPeersTimer);var e=this.config;e.getStats=e.getPeerId=e.getPeersInfo=null,this.logger.warn("destroy tracker")}},{key:"_filterPeers",value:function(e){var t=[],n=[].concat(y(this.DCMap.keys()),y(this.failedDCSet.keys()),[this.peerId]);return e.filter((function(e){return!n.includes(e.id)})).forEach((function(e){t.push({id:e.id,intermediator:e.intermediator})})),t}},{key:"_tryConnectToAllPeers",value:function(){var e=this.logger;if(0!==this.peers.length)for(e.info("try connect to "+this.peers.length+" peers, map size "+this.DCMap.size+" limit "+this.maxConnsActive+" peersNum "+this.scheduler.peersNum);this.peers.length>0&&!(this.DCMap.size>=this.maxConnsActive);){var t=this.peers.shift(),n=t.intermediator;this.signalerWs.connected||n&&this.DCMap.has(n)?(e.debug("create DataChannel "+t.id+" intermediator "+n),this._createDatachannel(t.id,!0,n)):e.info("skip peer "+t.id+" without intermediator")}else e.info("no peers after filter")}},{key:"_handleSendSignal",value:function(e,t){var n=e.remotePeerId;if(e.intermediator){var r=this.DCMap.get(e.intermediator);if(r){var i=!0,o=!0,s=!1,a=void 0;try{for(var u,l=t[Symbol.iterator]();!(o=(u=l.next()).done);o=!0){var c=u.value;r.sendMsgSignal(n,this.peerId,c)||(i=!1)}}catch(e){s=!0,a=e}finally{try{!o&&l.return&&l.return()}finally{if(s)throw a}}if(i)return;this.logger.warn("intermediator "+e.intermediator+" relay failed")}}e.intermediator=void 0,this.signalerWs.sendSignalBatch(n,t,e.signalName)}},{key:"_setupDC",value:function(e){var t=this;e.on(c.default.DC_SIGNAL,(function(n){t._handleSendSignal(e,[n])})).on(c.default.DC_SIGNAL_BATCH,(function(n){t._handleSendSignal(e,n)})).on(c.default.DC_PEER_SIGNAL,(function(n){var r=n.to_peer_id,i=n.from_peer_id,o=n.action;if(r&&i&&o)if(r!==t.peerId){t.logger.info("relay signal for "+i);var s=t.DCMap.get(r);if(s){if("signal"!==o)return void s.sendMsgSignalReject(r,i,n.reason,n.fatal);if(s.sendMsgSignal(r,i,n.data))return}e.sendMsgSignal(i,r)}else"signal"===o?t._handleSignalMsg(i,n,e.remotePeerId):t._handSignalRejected(i,n)})).on(c.default.DC_GET_PEERS,(function(){var n=(0,l.getCurrentTs)(),i=t.scheduler.getPeers().filter((function(e){return e.peersConnected<(e.mobileWeb?15:22)&&!e.super}));if(i&&i.length>0){var o=[];i.forEach((function(i){i.remotePeerId!==e.remotePeerId&&i.remotePeerId!==t.peerId&&(!t.config.live&&(i.currentPos-e.currentPos>600||i.currentPos<e.currentPos)||n-i.timeJoin>50&&o.push(r({id:i.remotePeerId},i.region)))})),t.logger.info("send "+o.length+" peers to "+e.remotePeerId),e.sendPeers(o)}})).on(c.default.DC_PEERS,(function(n){var r,i=n.peers;(t.logger.info("receive "+i.length+" peers from "+e.remotePeerId),i&&i.length>0)&&(i.forEach((function(t){t.intermediator=e.remotePeerId,t.region||(t.region={})})),(r=t.requestPeersQueue).push.apply(r,y(i)));t.requestPeersWaitCount--,t.requestPeersWaitCount<=0&&t._handleRequestedPeers()})).once(c.default.DC_ERROR,(function(n){t.logger.info("datachannel "+e.channelId+" failed fatal "+n),t.scheduler&&(t.scheduler.deletePeer(e),t._destroyAndDeletePeer(e.remotePeerId,n),t.fetcher&&(e.connected||n&&t.fetcher.increFailConns(),n&&t.failedDCSet.add(e.remotePeerId),t._doSignalFusing(t.scheduler.peersNum),t._doPeersRequest()))})).once(c.default.DC_TIMEOUT,(function(){e.intermediator||(t.failedDCSet.add(e.remotePeerId),t.fetcher&&t.fetcher.increFailConns()),t._destroyAndDeletePeer(e.remotePeerId,!1),t._doPeersRequest()})).once(c.default.DC_CLOSE,(function(n){t.logger.info("datachannel "+e.channelId+" closed fatal "+n),t.scheduler&&(t.scheduler.deletePeer(e),t._doSignalFusing(t.scheduler.peersNum)),t._destroyAndDeletePeer(e.remotePeerId,n),n&&t.failedDCSet.add(e.remotePeerId),t._doPeersRequest()})).once(c.default.DC_OPEN,(function(){e.isInitiator&&t.scheduler.handshakePeer(e)})).once(c.default.DC_METADATA,(function(n){var r=t.scheduler;e.isInitiator||r.handshakePeer(e),r.handleMetaData(e,n);var i=t.DCMap.size>=t.maxConnsActive;t.requestMorePeers(i),e.intermediator&&t.peersIncrement++,t._doSignalFusing(r.peersNum)}))}},{key:"_doPeersRequest",value:function(){var e=this.scheduler.peersNum;!this.signalerWs.connected||this.overloaded&&e>this.minConns?this._requestPeersFromPeers(e):this.requestMorePeers(),this._tryConnectToAllPeers()}},{key:"_doSignalFusing",value:function(e){if(!(this.fuseRate<=0)){var t=this.signalerWs.connected;t&&e>=this.fuseRate?(this.logger.warn("reach fuseRate, report stats close signaler"),this.totalConns-1>0&&this.fetcher.postStats(),this.signalerWs.close()):!t&&e<=this.minConns&&this.signalerWs.normalClosed&&(this.logger.warn("low conns "+e+", reconnect signaler"),this.signalerWs.reconnect())}}},{key:"_initSignalerWs",value:function(e,t,n,r){var i=this,o=function(e,t){var n=e+"?id="+i.peerId+"&p=web&v=1.22.1";return t&&(n=n+"&token="+t),n},l=void 0,f=o(e,n);if(t&&t!==e){var d=o(t,r);l=new a.default(this.logger,this.config,f,d)}else l=new s.default(this.logger,this.config,f);return l.onopen=function(){i.connected=!0,i.engine.emitEvent("serverConnected",!0),i._tryConnectToAllPeers()},l.onmessage=function(e,t){var n=e.action,r=e.from_peer_id||e.from;if(r)switch(n){case"signal":i._handleSignalMsg(r,e,null,t);break;case"reject":i._handSignalRejected(r,e);break;default:i.logger.warn("Signal websocket unknown action "+n)}else i.logger.warn("fromPeerId is missed")},l.onclose=function(){i.connected=!1,i.engine.emitEvent("serverConnected",!1)},l.onerror=function(e){e.message&&i.logger.warn("signal err: "+e.message),e.message&&i.engine.emitEvent(c.default.EXCEPTION,(0,u.default)(e,"SIGNAL_EXPT"))},l}},{key:"_handSignalRejected",value:function(e,t){this.logger.warn("signaling "+e+" rejected, reason "+t.reason);var n=this.DCMap.get(e);n&&!n.connected&&(n.destroy(t.fatal),this.DCMap.delete(e)),this.requestMorePeers(),t.fatal&&this.failedDCSet.add(e),this._tryConnectToAllPeers()}},{key:"_handleSignalMsg",value:function(e,t,n,r){if(this.scheduler){var i=this.logger;if(t.data){if(this.failedDCSet.has(e))return void this._sendSignalReject(e,e+" blocked",n,r,!0);this._handleSignal(e,t.data,n,r)}else{var o=this.DCMap.get(e);if(!o)return;if(this.signalerWs.backupConnected&&o&&o.signalMsgs.length>0&&"main"===r&&!o.useBackupSignal)return o.useBackupSignal=!0,o.signalName="backup",i.warn(e+" not found from main, try backup signal"),o.intermediator=void 0,void this.signalerWs.sendSignalBatch(e,o.signalMsgs,"backup");if(o.useBackupSignal)return;this._destroyAndDeletePeer(e),i.info("signaling "+e+" not found");var s=this.scheduler;s.waitForPeer&&(s.waitingPeers--,0===s.waitingPeers&&s.notifyPeersLoaded(0)),this.requestMorePeers(),this._tryConnectToAllPeers(),n||this.notFoundDCSet.add(e)}}}},{key:"_handleSignal",value:function(e,t,n,r){var i=t.type,o=this.logger,s=this.DCMap.get(e);if(s){if(s.connected)return void o.info("datachannel had connected, signal ignored");if("offer"===i){if(!(this.peerId>e))return void o.warn("signal type wrong "+i+", ignored");this._destroyAndDeletePeer(e,!1),o.warn("signal type wrong "+i+", convert to non initiator"),s=this._createDatachannel(e,!1,n)}}else{if("answer"===i){var a="type wrong "+i;return o.warn(a),this._sendSignalReject(e,a,n,r),void this._destroyAndDeletePeer(e,!1)}if(o.debug("receive node "+e+" connection request"),this.DCMap.size>=this.maxConns){var u="reach limit "+this.maxConns;return o.warn(u),void this._sendSignalReject(e,u,n,r)}s=this._createDatachannel(e,!1,n)}s&&(r&&(s.signalName=r),s.receiveSignal(t))}},{key:"_createDatachannel",value:function(e,t,n){if(this.fetcher){var r=void 0;if(t&&this.peerPool.available)r=this.peerPool.getPeer(),this.logger.info("get peer from pool, signal size "+r.signalMsgs.length),r.intermediator=n,r.assignPeerId(this.peerId,e);else{var i=this.config.trickleICE;this.overloaded&&(i=!1),r=new d.default(this.engine,this.peerId,e,t,this.config,{stuns:this.stuns,intermediator:n,trickle:!n&&i})}return this.DCMap.set(e,r),this._setupDC(r),r}}},{key:"_sendSignalReject",value:function(e,t,n,r,i){if(n){var o=this.DCMap.get(n);if(o&&o.sendMsgSignalReject(e,this.peerId,t,i))return}this.signalerWs.sendReject(e,t,i,r)}},{key:"_requestMorePeers",value:function(e){if(this.fetcher){var t=this.logger,n=this.scheduler.peersNum;n>=this.maxConnsActive||(t.info("requestMorePeers after delay "+e+", peersIncrement 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r=t.seg_id;e.bitset.has(r)&&(e.bitset.delete(r),n._decreBitCounts(r))}})).on(s.default.DC_PIECE,(function(e){e.ext&&e.ext.incompletes>=2||n.notifyAllPeers(e.sn,e.seg_id)})).on(s.default.DC_PIECE_NOT_FOUND,(function(t){var i=t.seg_id;n.criticalSeg&&n.criticalSeg.segId===i&&(1===n.criticalSeg.targetPeers.length?(clearTimeout(n.criticaltimeouter),r.info("DC_PIECE_NOT_FOUND"),n.criticalSeg=null,n.callbacks.onTimeout(n.stats,n.context,null)):n.criticalSeg.targetPeers=n.criticalSeg.targetPeers.filter((function(t){return t!==e.remotePeerId}))),e.bitset.delete(i),n.requestingMap.delete(i),n._decreBitCounts(i),e.checkIfNeedChoke(!0)})).on(s.default.DC_RESPONSE,(function(s,a){var u=s.segId,l=s.sn,c=s.data,f=n.criticalSeg&&n.criticalSeg.segId===u;if(n.config.validateSegment(u,c))if(n.notifyAllPeers(l,u),i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"reportDCTraffic",n).call(n,u,s.size,a),f){r.info("receive criticalSeg seg_id 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l,c=this.getPeers()[Symbol.iterator]();!(o=(l=c.next()).done);o=!0){var f=l.value;if(!f.notifySet.has(i)&&!f.bitset.has(i)){if(r&&(this.subscribers.includes(f.remotePeerId)||this.subscribeParent&&f.remotePeerId===this.subscribeParent.remotePeerId))continue;if(!n.includes(f.remotePeerId)&&(f.sendMsgHave(e,t),f.notifySet.add(i),r)){if(this.sequential){var d=e-20;d>0&&f.notifySet.delete(d)}else(0,a.trimSet)(f.notifySet,20)}}}}catch(e){s=!0,u=e}finally{try{!o&&c.return&&c.return()}finally{if(s)throw u}}}}}},{key:"updateLoaded",value:function(e){this.bitset.has(e)||(this.bitset.add(e),this.bitCounts.has(e)&&this.bitCounts.delete(e))}},{key:"deletePeer",value:function(e){var n=this;this.peerManager.hasPeer(e.remotePeerId)&&e.bitset.forEach((function(e){n._decreBitCounts(e)})),this.cleanRequestingMap(e.remotePeerId),i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"deletePeer",this).call(this,e)}},{key:"_setupDC",value:function(e){var n=this;i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"_setupDC",this).call(this,e);this.logger;e.on(s.default.DC_PIECE,(function(e){n.criticalSeg&&n.criticalSeg.segId===e.seg_id&&(n.stats.tfirst=Math.max(performance.now(),n.stats.trequest))})).on(s.default.DC_PIECE_DATA,(function(t,r,i,o,s){1===o&&e.pieceMsg.ext&&e.pieceMsg.ext.incompletes>=2&&n.notifyAllPeers(t,r)}))}},{key:"loadRemainBufferByHttp",value:function(e,n){var r=this,o=this.context.frag.url,s=this.config.xhrSetup,l=u.Buffer.concat(e.bufArr);i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"reportDCTraffic",this).call(this,n,l.byteLength,0);var c="bytes=";if(this.context.rangeEnd){var f=Number(this.context.rangeStart),d=Number(this.context.rangeEnd);c=""+c+(f+l.byteLength)+"-"+(d-1)}else c=""+c+l.byteLength+"-";this.logger.info("continue download from "+o+" range: "+c),(0,a.performRangeRequest)(o,c,s).then((function(t){var n=u.Buffer.from(t);r.engine.fetcher.reportFlow(n.byteLength);var i=u.Buffer.concat([l,n]),o=new Uint8Array(i).buffer,s=r.stats;s.tfirst=s.loading.first=Math.max(s.trequest,performance.now()),s.tload=s.loading.end=s.tfirst,s.loaded=s.total=i.byteLength;var a=r.context.frag;a.fromPeerId=e.remotePeerId,a.loadByP2P=!0,r.callbacks.onSuccess({data:o},s,r.context)})).catch((function(e){r.logger.error("http partial download error "+e),r.callbacks.onTimeout(r.stats,r.context,null)}))}},{key:"broadcastPlaylist",value:function(e,t){if(this.config.live){var n=(0,a.getMaxSequence)(t),r=!0,i=!1,o=void 0;try{for(var s,u=this.getPeers()[Symbol.iterator]();!(r=(s=u.next()).done);r=!0){s.value.sendMsgPlaylist(e,t,n)}}catch(e){i=!0,o=e}finally{try{!r&&u.return&&u.return()}finally{if(i)throw o}}this.playlistInfo.set(e,{seq:n})}}},{key:"getPlaylistFromPeer",value:function(e){if(!this.config.live)return null;var t=this.playlistInfo.get(e).seq,n=!0,r=!1,i=void 0;try{for(var o,s=this.getPeers()[Symbol.iterator]();!(n=(o=s.next()).done);n=!0){var a=o.value.getLatestPlaylist(e,t);if(a)return a}}catch(e){r=!0,i=e}finally{try{!n&&s.return&&s.return()}finally{if(r)throw i}}return null}},{key:"_handlePieceAborted",value:function(e){this.criticalSeg&&this.criticalSeg.targetPeers.includes(e)?1===this.criticalSeg.targetPeers.length?(clearTimeout(this.criticaltimeouter),this.criticaltimeout(),this.cleanRequestingMap(e)):this.criticalSeg.targetPeers=this.criticalSeg.targetPeers.filter((function(t){return t!==e})):this.cleanRequestingMap(e)}},{key:"criticaltimeout",value:function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0],t=this.logger,n=this.config;if(this.waitForPeer&&(this.waitForPeer=!1),this.criticalSeg){var r=this.criticalSeg.sn,i=this.criticalSeg.segId;this.sequential&&(i=r),t.info("critical request sn "+i+" timeout");var o=void 0;this.subscribeMode?o=this.subscribeParent:this.requestingMap.has(i)&&(o=this.getPeerLoadedMore(i));var s=!1;if(o&&(s=!o.loadtimeout()),s)t.info("p2p download completed");else{var a=1e3*n.httpLoadTime-500;if(e&&o&&o.shouldWaitForRemain(a))return t.info("wait for peer load remain of "+r),void(this.criticaltimeouter=setTimeout(this.criticaltimeout.bind(this),a+200));n.httpRangeSupported&&o&&o.bufArr.length>0&&o.segId===this.criticalSeg.segId?this.loadRemainBufferByHttp(o,i):this.callbacks.onTimeout(this.stats,this.context,null),this.requestingMap.delete(i),n.live&&o&&o.resetContinuousHits(),this.subscribeParent&&this._unsubscribe("subscribe timeout for "+r),this.criticalSeg=null,this.criticaltimeouter=null}}}},{key:"shouldWaitForNextSeg",value:function(){var e=void 0;return e=!(this.subscribers.length>0||this.isUploader)&&(!!this.isReceiver||(0,a.randomNum)(0,100)>20),this.isReceiver=this.isUploader=!1,e}},{key:"getStatsForPeer",value:function(){var e=this.subscribers,t=e.length>0?e.length:void 0,n=this.engine.currentLevel,r=this.engine.media.currentTime;return{children:t,pos:this.config.live?void 0:Math.round(r),level:n}}},{key:"bufferedDuration",get:function(){for(var e=this.engine.media,t=0,n=e.currentTime,r=e.buffered,i=r.length-1;i>=0;i--)if(n>=r.start(i)&&n<=r.end(i)){t=r.end(i)-n;break}return this.logger.info("bufferedDuration "+t),this.mBufferedDuration=t,t>0?t:0}}]),t}(o.default);t.default=c,e.exports=t.default},39:(e,t,n)=>{Object.defineProperty(t,"__esModule",{value:!0});var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=function e(t,n,r){null===t&&(t=Function.prototype);var i=Object.getOwnPropertyDescriptor(t,n);if(void 0===i){var o=Object.getPrototypeOf(t);return null===o?void 0:e(o,n,r)}if("value"in i)return i.value;var s=i.get;return void 0!==s?s.call(r):void 0},o=f(n(308)),s=f(n(327)),a=f(n(461)),u=f(n(140)),l=n(389),c=f(n(824));function f(e){return e&&e.__esModule?e:{default:e}}function d(e){if(Array.isArray(e)){for(var t=0,n=Array(e.length);t<e.length;t++)n[t]=e[t];return n}return Array.from(e)}var h=function(e){function t(e,n){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var r=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this,e,n));return r.logger.info("use SnScheduler"),r.sequential=!0,r.currPlaySN=0,r.currLostSN=-1,r.nextLostSN=-1,r.config.live?r.maxPrefetchCount=3:(r.maxPrefetchCount=150,r.startCheckPeersTimer()),r.waitForPeer=n.waitForPeer||!1,r.waitingPeers=0,r.waitForPeer&&(r.waitForPeerTimer=setTimeout((function(){r.waitForPeer=!1}),1e3*(n.waitForPeerTimeout+2))),r.estimatedSize=1e6,r}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,e),r(t,[{key:"notifySubscribeLevel",value:function(){var e=this;this.subscribers.forEach((function(t){var n=e.peerManager.getPeer(t);n&&n.sendSubscribeLevel(e.subscribeLevel)}))}},{key:"updatePlaySN",value:function(e){this.currPlaySN=e}},{key:"checkPeers",value:function(){var e=this.logger,t=this.config,n=t.live;if(!this.waitForPeer&&0!==this.bitCounts.size&&!(!n&&this.nextLostSN>=0&&this.nextLostSN>=this.currPlaySN-10)&&this.hasPeers)if(this.mBufferedDuration<this.allowP2pLimit)e.info("low buffer time, skip prefetch");else{var r=this.peerManager.getPeersOrderByWeight();if(0!==r.length){var i=[],o=t.prefetchNum,s=t.endSN,a=t.startSN;n&&(o=1);var u=0,l=n?this.loadingSN+1:this.loadingSN+2;if(!n)if(this.loadingSN>=s&&!this.bufMgr.overflowed)l=a;else{var c=Math.min.apply(Math,d(r.filter((function(e){return e.endSN>=l})).map((function(e){return e?e.startSN:1/0}))));if(!isFinite(c))return;l<c&&(l=c)}for(;i.length<o&&i.length<r.length&&u<this.maxPrefetchCount;){if(!n&&l>s)return;if(this.bitset.has(l))l++;else{if(l!==this.loadingSN&&this.bitCounts.has(l)&&!this.requestingMap.has(l)){var f=!0,h=!1,g=void 0;try{for(var p,v=r[Symbol.iterator]();!(f=(p=v.next()).done);f=!0){var y=p.value;if(!i.includes(y)&&y.bitset.has(l)){y.requestDataBySN(l,!1),e.info("request prefetch "+l+" from peer "+y.remotePeerId+" downloadNum "+y.downloadNum),i.push(y),this.requestingMap.set(l,y.remotePeerId);break}}}catch(e){h=!0,g=e}finally{try{!f&&v.return&&v.return()}finally{if(h)throw g}}}u++,l++}}this.loadedPeerNum=i.length}}}},{key:"addPeer",value:function(e){if(i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"addPeer",this).call(this,e),this.waitForPeer&&this.criticalSeg){var n=this.criticalSeg.segId,r=this.criticalSeg.sn,o=e.remotePeerId,s=this.requestingMap;s.checkIfPeerUnknown(r)&&(e.bitset.has(r)?(this.logger.info("found initial seg "+r+" from peer "+o),s.set(r,o),e.requestDataById(n,r,!0)):this.waitingPeers===this.peersNum&&this.criticaltimeout())}}},{key:"deletePeer",value:function(e){if(i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"deletePeer",this).call(this,e),this.subscribeMode&&e.remotePeerId===this.subscribeParent.remotePeerId){var n="subscribe parent is leaved";this.logger.warn(n),this._unsubscribe(n),this.criticaltimeout()}}},{key:"load",value:function(e,t,n){this.isReceiver=!0;var r=this.logger,i=this.config;this.context=e;var o=e.frag,s=o.segId,a=o.sn;this.callbacks=n,this.stats=(0,l.createLoadStats)(),this.criticalSeg={sn:a,segId:s},this.targetPeers.length>0?this.criticalSeg.targetPeers=[].concat(d(this.targetPeers.map((function(e){return e.remotePeerId})))):this.criticalSeg.targetPeers=[].concat(d(this.requestingMap.getAllPeerIds(a)));var u=this.mBufferedDuration-i.httpLoadTime;if(this.waitForPeer?u=i.waitForPeerTimeout:u>this.dcDownloadTimeout&&(u=this.dcDownloadTimeout),this.requestingMap.has(a))r.info("wait for criticalSeg segId "+s+" at "+a+" timeout "+u);else{var c=!0,f=!1,h=void 0;try{for(var g,p=this.targetPeers[Symbol.iterator]();!(c=(g=p.next()).done);c=!0){var v=g.value;v.downloading||(r.info("request criticalSeg segId "+s+" at "+a+" from "+v.remotePeerId+" timeout "+u),v.requestDataById(s,a,!0)),this.requestingMap.set(a,v.remotePeerId)}}catch(e){f=!0,h=e}finally{try{!c&&p.return&&p.return()}finally{if(f)throw h}}}this.criticaltimeouter=setTimeout(this.criticaltimeout.bind(this,!0),1e3*u),this.targetPeers=[]}},{key:"onBufferManagerSegAdded",value:function(e){this._sendSegmentToSubscribers(e)}},{key:"onBufferManagerLost",value:function(e,t,n){this.currLostSN=e,n&&(this.nextLostSN=n),this.bitset.delete(e),this.bitCounts.delete(e)}},{key:"destroy",value:function(){i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"destroy",this).call(this),clearTimeout(this.waitForPeerTimer),this.logger.warn("destroy SnScheduler")}},{key:"_setupDC",value:function(e){var n=this;i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"_setupDC",this).call(this,e);var r=this.logger,a=this.config;e.on(s.default.DC_HAVE,(function(t){if(t.sn&&e.bitset&&t.sn&&t.sn>=0){var r=t.sn;if(e.bitset.has(r)||(e.bitset.add(r),n.bitset.has(r)||n._increBitCounts(r)),a.live){var i=r-20;i>0&&e.bitset.delete(i)}n.emit(s.default.SCH_DCHAVE,t.seg_id),(0,c.default)((function(){!a.live||n.criticalSeg||n.subscribeMode||n.checkPeers()}))}})).on(s.default.DC_LOST,(function(t){if(t.sn&&e.bitset){var r=t.sn;e.bitset.has(r)&&(e.bitset.delete(r),n._decreBitCounts(r))}})).on(s.default.DC_PIECE,(function(t){n.subscribers.length>0&&t.sn>n.subscriberEdgeSN&&(n._sendPieceToSubscribers(t.sn,t.seg_id,!1,!1,t),e.addStreamListener(!1,void 0,(function(e,t,r,i,o){r?n._sendPieceToSubscribers(e,t,!1,!0,i):n._sendPieceToSubscribers(e,t,!0,!1,i,o)})),n.subscriberEdgeSN=t.sn),t.ext&&t.ext.incompletes>=2||n.notifyAllPeers(t.sn,t.seg_id)})).on(s.default.DC_PIECE_NOT_FOUND,(function(t){var i=t.sn;n.criticalSeg&&n.criticalSeg.sn===i&&(1===n.criticalSeg.targetPeers.length?(clearTimeout(n.criticaltimeouter),r.info("DC_PIECE_NOT_FOUND "+i),n.criticalSeg=null,n.callbacks.onTimeout(n.stats,n.context,null)):n.criticalSeg.targetPeers=n.criticalSeg.targetPeers.filter((function(t){return t!==e.remotePeerId}))),e.bitset.delete(i),a.live&&e.resetContinuousHits(),n.requestingMap.delete(i),n._decreBitCounts(i),e.checkIfNeedChoke(!0)})).on(s.default.DC_RESPONSE,(function(s,a){var u=n.config,l=s.segId,c=s.sn,f=s.data,d=n.criticalSeg&&n.criticalSeg.segId===l;if(u.validateSegment(l,f))if(n.notifyAllPeers(c,l),i(t.prototype.__proto__||Object.getPrototypeOf(t.prototype),"reportDCTraffic",n).call(n,c,s.size,a),d){r.info("receive criticalSeg seg_id "+l),clearTimeout(n.criticaltimeouter),n.criticaltimeouter=null,e.miss=0;var h=n.stats;h.tfirst=h.loading.first=Math.max(h.trequest,performance.now()),h.tload=h.loading.end=h.tfirst,h.loaded=h.total=f.byteLength,n.criticalSeg=null;var g=n.context.frag;g.fromPeerId=e.remotePeerId,g.loadByP2P=!0,n.callbacks.onSuccess({data:f,url:n.context.url},h,n.context),e.increContinuousHits(),u.maxSubscribeLevel&&u.live&&!n.subscribeMode&&e.continuousHits>7&&e.sendSubscribe()}else{if(n.bitset.has(c))return;var p=new o.default(c,l,f,e.remotePeerId);n.bufMgr.putSeg(p),n.updateLoaded(c)}else r.warn("segment "+l+" validate failed"),d&&(clearTimeout(n.criticaltimeouter),n.criticaltimeout());n.requestingMap.delete(c),!u.live||n.criticalSeg||n.subscribeMode||n.checkPeers()})).on(s.default.DC_REQUEST,(function(t){var i=t.sn;n.isUploader=!0,n.subscribers.includes(e.remotePeerId)&&(e.subscribeEdgeSN=i);var o=t.seg_id;o||(o=n.bufMgr.getSegIdBySN(i));var a=null;if(n.requestingMap.has(i)?a=n.getPeerLoadedMore(i):n.subscribeMode&&(a=n.subscribeParent),n.bufMgr.hasSegOfId(o)){r.info("found seg from bufMgr");var u=n.bufMgr.getSegById(o);e.sendBuffer(u.sn,u.segId,u.data,{from:"SegmentFromCache"})}else a&&a.downloading&&a.pieceMsg.sn===i?(r.info("target had "+a.bufArr.length+" packets, wait for remain from upstream "+a.remotePeerId),e.sendPartialBuffer(a.pieceMsg,a.bufArr,{from:"WaitForPartial",incompletes:1}),function(e,t){e.addStreamListener(!1,t.remotePeerId,(function(e,n,r,i,o){r?t.sendMsgPieceAbort(i,n,!0):t.send(i),o&&(t.uploading=!1)}))}(a,e)):i>=n.loadingSN?(r.info("peer request "+i+" wait for seg"),n.bufMgr.once(""+s.default.BM_ADDED_SN_+i,(function(t){t?(r.info("peer request notify seg "+t.sn),e.sendBuffer(t.sn,t.segId,t.data,{from:"NotifySegment"})):e.sendPieceNotFound(i,o)}))):e.sendPieceNotFound(i,o)})).on(s.default.DC_SUBSCRIBE,(function(){if(n.config.live){var t=n.subscribers.length,i=n.config.maxSubscribeLevel;if(0===i)e.sendSubscribeReject("subscribe disabled");else if(t>=25)e.sendSubscribeReject("too many subscribers");else if(n.subscribeLevel>=i)e.sendSubscribeReject("subscribe level reach "+n.subscribeLevel);else if(n.subscribers.indexOf(e.remotePeerId)>=0)e.sendSubscribeReject("subscriber already exist");else{if(t>=2){var o=[];if(n.subscribers.forEach((function(e){var t=n.peerManager.getPeer(e).uploadSpeed;t&&o.push(t)})),!u.default.evaluatePeersSpeed(o,n.estimatedSize))return void e.sendSubscribeReject("Insufficient upload capability")}n.subscribers.push(e.remotePeerId),r.info("subscribers add "+e.remotePeerId),e.sendSubscribeAccept(n.subscribeLevel)}}})).on(s.default.DC_UNSUBSCRIBE,(function(t){var i=n.subscribers.indexOf(e.remotePeerId);-1!==i&&(r.info("subscribers remove "+e.remotePeerId+" reason "+t.reason),n.subscribers.splice(i,1))})).on(s.default.DC_SUBSCRIBE_ACCEPT,(function(t){if(!n.subscribeMode){var r=t.level||0;n.subscribeMode=!0,n.subscribeLevel=r+1,n.subscribeParent=e,n.notifySubscribeLevel()}})).on(s.default.DC_SUBSCRIBE_REJECT,(function(t){r.warn("subscribe rejected, reason "+t.reason),e.resetContinuousHits()})).on(s.default.DC_SUBSCRIBE_LEVEL,(function(e){if(n.subscribeMode){var t=e.level||0;n.subscribeLevel=t+1,r.info("set subscribe level to "+n.subscribeLevel),n.notifySubscribeLevel()}}))}},{key:"_setupEngine",value:function(){var e=this;this.engine.on(s.default.FRAG_LOADING,(function(t,n,r){e.loadingSN=t,e.loadingSegId=n,e.isHlsV0&&r&&e.notifyAllPeers(t,n)})).on(s.default.FRAG_LOADED,(function(t,n,r,i,o){e.config.live&&(e.estimatedSize=r),!e.isHlsV0&&o&&e.notifyAllPeers(t,n),e.updateLoaded(t)})).on(s.default.FRAG_CHANGED,(function(t,n){e.updatePlaySN(t)}))}},{key:"notifyPeersLoaded",value:function(e){this.logger.info("notifyPeersLoaded "+e),this.waitForPeer&&(0===e?this.criticaltimeout():this.waitingPeers=e)}},{key:"_unsubscribe",value:function(e){this.logger.warn("unsubscribe to "+this.subscribeParent.remotePeerId),this.subscribeParent.sendUnsubscribe(e),this.subscribeParent=null,this.subscribeLevel=0,this.subscribeMode=!1,this.notifySubscribeLevel()}},{key:"_sendSegmentToSubscribers",value:function(e){var t=this,n=e.sn,r=e.segId,i=e.data;this.subscribers=this.subscribers.filter((function(e){var o=t.peerManager.getPeer(e);return o?(o.uploading||o.bitset.has(n)||(t.logger.info("send seg "+r+" to subscriber "+e),o.uploading=!0,o.sendBuffer(n,r,i,{from:"SegmentToSubscribers"}),o.bitset.add(n)),!0):(t.logger.info("subscribers remove "+e),!1)}))}},{key:"_sendPieceToSubscribers",value:function(e,t,n,r,i,o){var s=this;this.subscribers=this.subscribers.filter((function(a){var u=s.peerManager.getPeer(a);if(u){if(n&&e===u.pieceMsg.sn)u.send(i),o&&(u.uploading=!1,u.bitset.add(e));else if(!n)if(r)u.sendMsgPieceAbort(i,t,!0);else{if(u.uploading||e<=u.subscribeEdgeSN)return!0;u.subscribeEdgeSN=e,u.uploading=!0,u.pieceMsg=i,s.logger.info("downstream msg "+JSON.stringify(i)+" to subscriber "+a),u.sendMsgPiece(i,{from:"PieceToSubscribers",incompletes:1})}return!0}return s.logger.info("subscribers remove "+a),!1}))}}]),t}(a.default);t.default=h,e.exports=t.default},478:(e,t,n)=>{Object.defineProperty(t,"__esModule",{value:!0});var r=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var r in n)Object.prototype.hasOwnProperty.call(n,r)&&(e[r]=n[r])}return e},i=function e(t,n,r){null===t&&(t=Function.prototype);var i=Object.getOwnPropertyDescriptor(t,n);if(void 0===i){var o=Object.getPrototypeOf(t);return null===o?void 0:e(o,n,r)}if("value"in i)return i.value;var s=i.get;return void 0!==s?s.call(r):void 0},o=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),s=S(n(299)),a=S(n(680)),u=S(n(788)),l=S(n(946)),c=S(n(277)),f=S(n(555)),d=S(n(327)),h=S(n(89)),g=S(n(578)),p=S(n(745)),v=S(n(828)),y=n(524),m=n(408),_=n(389),b=S(n(39)),P=S(n(91));function S(e){return e&&e.__esModule?e:{default:e}}if(window){if(window.p2ploadedHls)throw new Error("You are loading the p2p library multiple times. Please load it only once.");window.p2ploadedHls=!0}var w=function(e){function t(e){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var i=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this,n));i.config=Object.assign({},a.default,n),i.rangeTested=!1,i.lastLevel=0,i.hlsjs=e,i.config.waitForPeer&&(i.config.trickleICE=!0),i.HLSEvents=e.constructor.Events,i.config.isHlsV0="0"===e.constructor.version.split(".")[0],i.config.xhrSetup=e.config.xhrSetup;var o=i.config,u=o.token,l=o.channelId,c=o.segmentId,f=function(e){var t=s.default.parseURL(e);return""+(t.netLoc.substr(2)+t.path.substring(0,t.path.lastIndexOf(".")))},d=function(e,t,n,r){var i=n.split("?")[0];return i.startsWith("http")&&(i=i.split("://")[1]),r?i+"|"+r:""+i};l&&(f=i.makeChannelId(u,l),c||(d=function(e,t,n,r){return e+"-"+t})),c||(i.config.segmentId=d),e.config.segmentId=i.config.segmentId;var g=i.makeSignalId();e.on(i.HLSEvents.LEVEL_LOADED,(function t(n,o){var s=i.config,a=o.details,u=a.live;s.live=i.hlsjs.config.live=u,i.browserInfo=r({},i.commonBrowserInfo,{abr:i.multiBitrate||void 0,tag:s.tag||void 0,live:u,type:"hls"}),i.channel=f(e.url)+"|"+g+"["+h.default.VERSION+"]",i.browserInfo.device===y.device.PC_NATIVE&&(i.browserInfo=r({},i.browserInfo,{app:s.appName,bundle:s.appId}));var l=i.initLogger();i.hlsjs.config.logger=l,l.info("channel "+i.channel),u||(s.startSN=a.startSN,s.endSN=a.endSN,l.info("startSN "+a.startSN+" endSN "+a.endSN)),i.eventListened=!1,i._init(i.channel,i.browserInfo),e.off(i.HLSEvents.LEVEL_LOADED,t)}));return e.on(i.HLSEvents.MANIFEST_PARSED,(function t(n,r){var o=r.levels.length;i.multiBitrate=o>1,e.off(i.HLSEvents.MANIFEST_PARSED,t)})),i}return 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