@swarmcloud/theoplayer/theoplayer-p2p-engine.hls.min.js

Let your viewers become your unlimitedly scalable CDN.

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t=this._pc.localDescription||e;this.emit("signal",{type:t.type,sdp:t.sdp})};this._pc.setLocalDescription(e).then((()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))})).catch((e=>{this.destroy(e)}))})).catch((e=>{this.destroy(e)}))}_onConnectionStateChange(){this.destroyed||"failed"===this._pc.connectionState&&this.destroy(new Error("Connection failed."))}_onIceStateChange(){if(this.destroyed)return;const e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this.emit("iceStateChange",e,t),"connected"!==e&&"completed"!==e||(this._pcReady=!0,this._maybeReady()),"failed"===e&&this.destroy(new Error("Ice connection failed.")),"closed"===e&&this.destroy(new Error("Ice connection closed."))}getStats(e){const t=e=>("[object Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach((t=>{Object.assign(e,t)})),e);0===this._pc.getStats.length?this._pc.getStats().then((s=>{const i=[];s.forEach((e=>{i.push(t(e))})),e(null,i)}),(t=>e(t))):this._pc.getStats.length>0?this._pc.getStats((s=>{if(this.destroyed)return;const i=[];s.result().forEach((e=>{const s={};e.names().forEach((t=>{s[t]=e.stat(t)})),s.id=e.id,s.type=e.type,s.timestamp=e.timestamp,i.push(t(s))})),e(null,i)}),(t=>e(t))):e(null,[])}_maybeReady(){if(this._connected||this._connecting||!this._pcReady||!this._channelReady)return;this._connecting=!0;const e=()=>{this.destroyed||this.getStats(((t,s)=>{if(this.destroyed)return;t&&(s=[]);const i={},r={},n={};let o=!1;s.forEach((e=>{"remotecandidate"!==e.type&&"remote-candidate"!==e.type||(i[e.id]=e),"localcandidate"!==e.type&&"local-candidate"!==e.type||(r[e.id]=e),"candidatepair"!==e.type&&"candidate-pair"!==e.type||(n[e.id]=e)}));const a=e=>{o=!0;let t=r[e.localCandidateId];t&&(t.ip||t.address)?(this.localAddress=t.ip||t.address,this.localPort=Number(t.port)):t&&t.ipAddress?(this.localAddress=t.ipAddress,this.localPort=Number(t.portNumber)):"string"==typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),this.localAddress=t[0],this.localPort=Number(t[1])),this.localAddress&&(this.localFamily=this.localAddress.includes(":")?"IPv6":"IPv4");let s=i[e.remoteCandidateId];s&&(s.ip||s.address)?(this.remoteAddress=s.ip||s.address,this.remotePort=Number(s.port)):s&&s.ipAddress?(this.remoteAddress=s.ipAddress,this.remotePort=Number(s.portNumber)):"string"==typeof e.googRemoteAddress&&(s=e.googRemoteAddress.split(":"),this.remoteAddress=s[0],this.remotePort=Number(s[1])),this.remoteAddress&&(this.remoteFamily=this.remoteAddress.includes(":")?"IPv6":"IPv4")};if(s.forEach((e=>{"transport"===e.type&&e.selectedCandidatePairId&&a(n[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&a(e)})),o||Object.keys(n).length&&!Object.keys(r).length){if(this._connecting=!1,this._connected=!0,this._chunk){try{this.send(this._chunk)}catch(t){return this.destroy(t)}this._chunk=null;const e=this._cb;this._cb=null,e(null)}"number"!=typeof this._channel.bufferedAmountLowThreshold&&(this._interval=setInterval((()=>this._onInterval()),150),this._interval.unref&&this._interval.unref()),this.emit("connect");for(let e of this._pendingData)this.emit("data",e);this._pendingData=[]}else setTimeout(e,100)}))};e()}_onInterval(){!this._cb||!this._channel||this._channel.bufferedAmount>L||this._onChannelBufferedAmountLow()}_onSignalingStateChange(){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))}_onIceCandidate(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())}_onChannelMessage(t){if(this.destroyed)return;let s=t.data;s instanceof ArrayBuffer&&(s=e.h.from(s)),this._connected?this.emit("data",s):this._pendingData.length<10&&this._pendingData.push(s)}_onChannelBufferedAmountLow(){if(this.destroyed||!this._cb)return;const e=this._cb;this._cb=null,e(null)}_onChannelOpen(){this._connected||this.destroyed||(this._channelReady=!0,this._maybeReady())}_onChannelClose(){this.destroyed||this.destroy()}}D.config={iceServers:[{urls:["stun:stun.l.google.com:19302","stun:global.stun.twilio.com:3478"]}],sdpSemantics:"unified-plan"},D.channelConfig={};const M=D,N={DC_SIGNAL:"SIGNAL",DC_SIGNAL_BATCH:"SIGNAL_BATCH",DC_OPEN:"OPEN",DC_REQUEST:"REQUEST",DC_PIECE_NOT_FOUND:"PIECE_NOT_FOUND",DC_PIECE_ABORT:"PIECE_ABORT",DC_PIECE_CANCEL:"PIECE_CANCEL",DC_CLOSE:"CLOSE",DC_DISCONNECT:"DISCONNECT",DC_RESPONSE:"RESPONSE",DC_ERROR:"ERROR",DC_PIECE:"PIECE",DC_PIECE_DATA:"PIECE_DATA",DC_TIMEOUT:"TIMEOUT",DC_PIECE_ACK:"PIECE_ACK",DC_METADATA:"METADATA",DC_PLAT_ANDROID:"ANDROID",DC_PLAT_IOS:"IOS",DC_PLAT_WEB:"WEB",DC_CHOKE:"CHOKE",DC_UNCHOKE:"UNCHOKE",DC_HAVE:"HAVE",DC_HAVE_REVERSE:"HAVE_REVERSE",DC_LOST:"LOST",DC_GET_PEERS:"GET_PEERS",DC_PEERS:"PEERS",DC_STATS:"STATS",DC_PEER_SIGNAL:"PEER_SIGNAL",DC_PLAYLIST:"PLAYLIST",BM_LOST:"lost",BM_ADDED_SEG_:"BM_ADDED_SEG_",BM_ADDED_SN_:"BM_ADDED_SN_",BM_SEG_ADDED:"BM_SEG_ADDED",BM_FATAL_ERROR:"BM_FATAL_ERROR",FRAG_CHANGED:"FRAG_CHANGED",FRAG_LOADED:"FRAG_LOADED",FRAG_LOADING:"FRAG_LOADING",RESTART_P2P:"RESTART_P2P",EXCEPTION:"exception",SYN_OUTPUT:"SYN_OUTPUT",SYN_ERROR:"SYN_ERROR",SYN_PROGRESS:"SYN_PROGRESS",MEDIA_REBUFFER:"MEDIA_REBUFFER"};class k{constructor(e,t,s,i,r=0,n=void 0){this.sn=e,this.segId=t,this.data=s,this.fromPeerId=i,this.level=r||0,this.ext=n}static fromSegment(e){const t=new k(e.sn,e.segId,e.data,e.fromPeerId,e.level,e.ext);return t.from=e.from,t}get size(){return this.data.byteLength}get isSequential(){return this.sn>=0}}var O=s(365),$=s.n(O);class B extends(T()){static get defaultPacketSize(){return o}static get VERSION(){return"8"}constructor(e,t,s,i,r,n={}){super(),this.channel=e.fetcher.channelId,this.logger=e.logger,this.config=r,this.isInitiator=i,this.options=n,this.intermediator=n.intermediator||null,this.signalMsgs=[],this.assignPeerId(t,s),this.platform="unknown",this.super=!1,this.mobile=!1,this.mobileWeb=!1,this.mobileNet=!1,this.connected=!1,this.msgQueue=[],this.miss=0,this.notifySet=new Set,this.bufArr=[],this.packetSize=o,this.sendReqQueue=[],this.downloading=!1,this.uploading=!1,this.choked=!1,this.streamListeners=[],this.pieceMsg={},this.datasToSend=[],this.bytesUploaded=0,this.dataWriting=!1,this.timeSendRequest=0,this.timeReceivePiece=0,this.timeSendPiece=0,this.weight=0,this.peersConnected=1,this.uploadSpeed=0,this.currentLevel=0,this.currentPos=0,this.useBackupSignal=!1,this.gotPeersTS=0,this.gotAnswer=!1,this.gotOffer=!1,this.gotSignal=!1,this.sentSignal=!1,this.incomingSignal=[],this.webRTCConfig={};const{stuns:a}=this.options;if(a&&a.length>0){const e=[];a.forEach((t=>{this.logger.info(`use stun ${t}`),e.push({urls:t})})),this.webRTCConfig.iceServers=e}this.config.webRTCConfig&&(this.webRTCConfig={...this.config.webRTCConfig,...this.webRTCConfig}),this.playlistMap=new Map,this._initPeerChannel(),this.notFatalClosed=!1,this.startSN=Number.MAX_SAFE_INTEGER,this.endSN=-1,this._loadedBytes=0}assignPeerId(e,t){this.remotePeerId=t,this.channelId=this.isInitiator?`${e}-${t}`:`${t}-${e}`,t&&this._startTimer(),setTimeout((()=>{this.signalMsgs.length>0&&this.emit(N.DC_SIGNAL_BATCH,this.signalMsgs)}),0)}_startTimer(){this.timeJoin=l(),this.dataExchangeTs=this.timeJoin,this.gotStatsTs=this.timeJoin,this.connTimeout=setTimeout((()=>{const{gotSignal:e,sentSignal:t,signalName:s}=this;this.logger.warn(`dc ${this.channelId} connection timeout, gotSignal ${e} sentSignal ${t} signalName ${s}`),this.emit(N.DC_TIMEOUT,{gotSignal:e,sentSignal:t,data:this.signalMsgs})}),this.isInitiator?15e3:12e3)}get isAvailable(){return this.downloadNum<2&&!this.choked}get isAvailableUrgently(){return!this.downloading&&!this.choked}cancelDownload(e,t,s){return!!this.downloading&&(!(this.bufSN>e)&&(!(this.streamListeners.length>0)&&(this.logger.info(`cancel download ${s} to ${this.remotePeerId} remain packets ${this.remainAttachments}`),this.timeReceivePiece=0,this.sendJson({event:N.DC_PIECE_CANCEL,sn:e,level:t,seg_id:s}))))}addStreamListener(e,t,s){this.streamListeners.push({handler:s,peerId:t})}removeStreamListener(e){this.streamListeners=this.streamListeners.filter((t=>t.peerId!==e||(t.handler(void 0,void 0,!0,"aborted by cancel"),!1)))}_initPeerChannel(){const e=new M({initiator:this.isInitiator,trickle:this.options.trickle||!1,config:this.webRTCConfig});this._datachannel=e,e.on("error",(e=>{let t=!0;(this.connected||this.notFatalClosed)&&(t=!1);let s=e.message;e.debug&&(s=`${s} raw: ${JSON.stringify(this.incomingSignal)}`),this.emit(N.DC_ERROR,t,s)})),e.on("signal",(e=>{e.candidate&&!e.candidate.candidate||(!this.useBackupSignal&&this.signalMsgs.length<10&&this.signalMsgs.push(e),this.sentSignal=!0,this.emit(N.DC_SIGNAL,e))}));e.on("connect",(()=>{for(this.logger.info(`datachannel CONNECTED from ${this.intermediator?"peer":"server "+this.signalName} to ${this.remotePeerId}`),this.connected=!0,this.incomingSignal=[],clearTimeout(this.connTimeout),this.signalMsgs=[],this.emit(N.DC_OPEN);this.msgQueue.length>0;){let e=this.msgQueue.shift();this.emit(e.event,e)}})),e.on("data",(e=>{const{logger:t}=this;if("string"==typeof e){let s=JSON.parse(e);if(!s)return void t.error("dc received string is null");if(!this.connected)return void this.msgQueue.push(s);let i,r=s.event;switch(i=r!==N.DC_PLAYLIST&&r!==N.DC_PEER_SIGNAL?`string: ${e}`:`event: ${r}`,t.debug(`datachannel receive ${i} from ${this.remotePeerId}`),r){case N.DC_HAVE:if(this.emit(s.event,s),!s.sn)return;this.config.live||(s.sn<this.startSN&&(this.startSN=s.sn),s.sn>this.endSN&&(this.endSN=s.sn));break;case N.DC_PIECE:this.downloading=!0,this.dataExchangeTs=l(),this.timeReceivePiece=performance.now(),this.pieceMsg=s,this._prepareForBinary(s.attachments,s.seg_id,s.sn,s.size),this.emit(s.event,s);break;case N.DC_PIECE_CANCEL:t.info(`send queue ${this.datasToSend.length}, uploading ${this.uploading}`),this.emit(s.event,s),this.sendMsgPieceAbort("transfer canceled",s.seg_id);break;case N.DC_PIECE_NOT_FOUND:this._sendNextReq()||(this.downloading=!1),this.emit(s.event,s);break;case N.DC_REQUEST:this._handleRequestMsg(s);break;case N.DC_PIECE_ACK:this._handlePieceAck(s.seg_id,s.size,s.miss);break;case N.DC_STATS:this._handleStats(s);break;case N.DC_PLAYLIST:this.config.sharePlaylist&&this._handlePlaylist(s);break;case N.DC_METADATA:this._handleMetadata(s);break;case N.DC_PIECE_ABORT:this.downloading&&(this._notifyDownloadListenersAbort("aborted by upstream peer"),this.emit(N.DC_PIECE_ABORT,s)),this.downloading=!1,this.segId=void 0;break;case N.DC_CHOKE:t.info(`choke peer ${this.remotePeerId}`),this.choked=!0;break;case N.DC_UNCHOKE:t.info(`unchoke peer ${this.remotePeerId}`),this.choked=!1;break;case N.DC_CLOSE:this.emit(s.event,s.fatal||!1);break;default:this.emit(s.event,s)}}else{if(!e)return void t.error("datachannel on data is undefined!");if(!this.downloading){const s=`peer ${this.remotePeerId} not downloading, data size ${e.byteLength} pieceMsg ${JSON.stringify(this.pieceMsg)}`;return t.warn(s),void this.emit(N.DC_ERROR,!1,s)}this._handleBinaryMsg(e)}})),e.once("close",(()=>{this.emit(N.DC_CLOSE,!1)})),e.on("iceStateChange",((e,t)=>{this.connected&&"disconnected"===e&&(this.logger.warn(`${this.remotePeerId} disconnected`),this.emit(N.DC_DISCONNECT))}))}sendJson(e){if(!this.remotePeerId)return!1;e.event!==N.DC_PLAYLIST&&e.event!==N.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}`);const t=JSON.stringify(e);return t.length>o?(this.logger.error("string to send is too large"),!1):this.send(t,!1)}send(e,t=!0){return t?(this.datasToSend.push(e),this.dataWriting||this._sendDataSync(),!0):this.sendImmediately(e)}_sendDataSync(){if(!this._datachannel.connected||0===this.datasToSend.length)return void(this.dataWriting=!1);this.dataWriting=!0;const e=this.datasToSend.shift();e?("string"!=typeof e&&(this.bytesUploaded+=e.byteLength),this._datachannel.write(e,(e=>{if(e)return this.dataWriting=!1,void this.emit(N.DC_ERROR,!1,e.message);this._sendDataSync()}))):this.logger.error("sendDataSync data is undefined!")}sendImmediately(e){if(this._datachannel.connected)try{return this._datachannel.send(e),!0}catch(e){const t=`datachannel ${this.channelId} send data failed, close it`;this.emit(N.DC_ERROR,!1,t)}return!1}sendMsgHave(e,t,s={}){const i=s.reverse||void 0;delete s.reverse,this.sendJson({event:i?N.DC_HAVE_REVERSE:N.DC_HAVE,sn:e,seg_id:t,...s})}sendPieceNotFound(e,t,s={}){this.uploading=!1,this.sendJson({event:N.DC_PIECE_NOT_FOUND,seg_id:t||void 0,sn:e,...s})}sendPeers(e){this.sendJson({event:N.DC_PEERS,peers:e})}sendPeersRequest(){this.sendJson({event:N.DC_GET_PEERS})}sendMsgStats(e,t={}){const s={event:N.DC_STATS,total_conns:e,...t};this.sendJson(s)}sendMsgPlaylist(e,t,s){const i=this.playlistMap.get(e);if(i&&i.seq>=s)return;const r={event:N.DC_PLAYLIST,url:e,data:t,seq:s};this.playlistMap.set(e,{data:t,seq:s}),this.sendJson(r)}sendMsgSignal(e,t,s){return this.sendJson({event:N.DC_PEER_SIGNAL,action:"signal",to_peer_id:e,from_peer_id:t,data:s})}sendMsgSignalReject(e,t,s,i=!1){return this.sendJson({event:N.DC_PEER_SIGNAL,action:"reject",to_peer_id:e,from_peer_id:t,reason:s,fatal:i})}sendMetaData(e,t,s,i,r=!1){this.isInitiator&&(this.timeSendRequest=performance.now()),this.sendJson({event:N.DC_METADATA,field:e,platform:N.DC_PLAT_WEB,mobile:!!$().isMobile(),mobile_net:r,channel:this.channel,version:"0.3.1",sequential:t,peers:s,region:i})}sendPartialBuffer(e,t,s={}){if(!this.sendMsgPiece(e,s))return!1;for(let e=0;e<t.length;e++)this.send(t[e]);return!0}sendMsgPiece(e,t={}){if(!this.uploading)return this.logger.info("not uploading, cancel send buffer"),!1;this.datasToSend=[],this.bytesUploaded=0,e.ext||(e.ext={}),e.ext.from&&t.from&&t.from.length<2500&&(t.from=`${e.ext.from}-${t.from}`),t.incompletes&&e.ext.incompletes&&(t.incompletes+=e.ext.incompletes),t=Object.assign({},e.ext,t);const s={...e,ext:t};return this.sendJson(s)}sendBuffer(e,t,s,i={}){const r=i.reverse||void 0;if(delete i.reverse,!s)return void this.logger.error("sendBuffer payload is undefined!");let n=s.byteLength,o=0,a=0;n%this.packetSize==0?a=n/this.packetSize:(a=Math.floor(n/this.packetSize)+1,o=n%this.packetSize);let h={event:N.DC_PIECE,attachments:a,seg_id:t,sn:e,level:i.level,size:n,reverse:r};if(delete i.level,!this.sendMsgPiece(h,i))return;const l=function(e,t,s,i){let r=[];if(i){let n;for(let i=0;i<s-1;i++)n=e.slice(i*t,(i+1)*t),r.push(n);n=e.slice(e.byteLength-i,e.byteLength),r.push(n)}else{let i;for(let n=0;n<s;n++)i=e.slice(n*t,(n+1)*t),r.push(i)}return r}(s,this.packetSize,a,o);this._sendBufferArray(l,r),this.uploading=!1,this.timeSendPiece=performance.now()}get downloadNum(){return this.downloading?this.sendReqQueue.length+1:0}requestDataById(e,t,s=!1,i={}){const r={event:N.DC_REQUEST,seg_id:e,sn:t,...i,urgent:s};this.downloading?(this.logger.info(`${this.remotePeerId} add req ${e} in queue`),s?this.sendReqQueue.unshift(r):this.sendReqQueue.push(r)):this._realRequestData(r)}requestDataBySN(e,t=!1,s={}){const i={event:N.DC_REQUEST,sn:e,...s,urgent:t};this.downloading?(this.logger.info(`add req ${e} in queue`),t?this.sendReqQueue.unshift(i):this.sendReqQueue.push(i)):this._realRequestData(i)}_sendBufferArray(e,t=!1){const s=t?e.reverse():e;for(let e=0;e<s.length;e++)this.send(s[e])}_realRequestData(e){this.sendJson(e),this.timeSendRequest=performance.now(),this.downloading=!0,this._loadedBytes=0}shouldWaitForRemain(e){return 0!==this.bufArrSize&&(0!==this.timeReceivePiece&&this.currentLoadSpeed()>=this.minRequiredSpeed(e))}close(e){e||(this.notFatalClosed=!0),this.emit(N.DC_CLOSE,e)}receiveSignal(e,t){if("answer"===e.type){if(this.gotAnswer||this.gotOffer)return;this.gotAnswer=!0}else if("offer"===e.type){if(this.gotOffer||this.gotAnswer)return;this.gotOffer=!0}this.gotSignal=!0,t&&this.incomingSignal.push(t),e&&this._datachannel.signal(e)}_notifyDownloadListenersAbort(e){for(let t of this.streamListeners){const{handler:s}=t;s(void 0,void 0,!0,e)}this.streamListeners=[]}destroy(e=!0){this.logger.info(`destroy datachannel ${this.channelId}`),clearTimeout(this.chokeTimer),clearTimeout(this.connTimeout),this._notifyDownloadListenersAbort("upstream peer is closed");let t={event:N.DC_CLOSE,fatal:e};this.sendJson(t),this._datachannel.removeAllListeners(),this.removeAllListeners(),this._datachannel.destroy()}_handleBinaryMsg(e){const{attachments:t,reverse:s}=this.pieceMsg;this.listenerCount(N.DC_RESPONSE)>0&&this.bufArr.push(e),this._loadedBytes+=e.byteLength,this.remainAttachments--;let i=s?this.remainAttachments+1:t-this.remainAttachments;const r=0===this.remainAttachments;if(this.emit(N.DC_PIECE_DATA,this.bufSN,this.segId,e,i,r,this.pieceMsg),this.streamListeners.length>0)for(let t of this.streamListeners){const{handler:s}=t;s(this.bufSN,this.segId,!1,e,r)}if(r){if(this.streamListeners=[],this.timeSendRequest>0)if(this.super)this.weight=1;else{const e=this.expectedSize/(performance.now()-this.timeSendRequest);this.weight=this.weight>0?.6*this.weight+.4*e:e}this.sendJson({event:N.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(s)}}_sendNextReq(){if(this.sendReqQueue.length>0){const e=this.sendReqQueue.shift();return this.logger.info(`get msg from sendReqQueue ${JSON.stringify(e)}`),this._realRequestData(e),!0}return!1}_handlePlaylist(e){const{url:t,data:s,seq:i}=e;this.playlistMap.set(t,{data:s,seq:i})}getLatestPlaylist(e,t){if(!this.playlistMap.has(e))return null;const s=this.playlistMap.get(e);return s.seq<=t||s.seq>t+2?null:s}_handleMetadata(e){const{logger:t}=this;if(this.isInitiator){const e=performance.now()-this.timeSendRequest;e>0&&(this.weight=1e5/e,t.info(`handle Metadata from ${this.remotePeerId} initial weight ${this.weight}`)),this.timeSendRequest=0}const s=e.channel;if(this.channel!==s){const e=`peer channel ${s} not matched!`;return t.error(e),void this.emit(N.DC_ERROR,!0,e)}if(e.super){t.info(`got super peer ${this.remotePeerId}`),this.super=!0;const{token:s}=this.config;if(s&&e.token!==s)return void this.emit(N.DC_ERROR,!0,`super peer token ${e.token} not matched!`)}e.region&&(this.region=e.region);switch(e.platform){case N.DC_PLAT_ANDROID:this.platform=N.DC_PLAT_ANDROID;break;case N.DC_PLAT_IOS:this.platform=N.DC_PLAT_IOS;break;case N.DC_PLAT_WEB:this.platform=N.DC_PLAT_WEB}if(this.mobile=e.mobile||!1,this.mobileNet=e.mobile_net||!1,this.mobileWeb=this.mobile&&this.platform===N.DC_PLAT_WEB||!1,this.sequential=e.sequential,t.info(`${this.remotePeerId} platform ${this.platform} sequential ${this.sequential}`),e.peers&&(this.peersConnected+=e.peers,t.info(`${this.remotePeerId} now has ${this.peersConnected} peers`)),this.emit(N.DC_METADATA,e),e.field&&!this.config.live&&e.sequential){const{field:t}=e;if(Array.isArray(t))this._handleField(t);else for(let e in t)this._handleField(t[e])}}_handleField(e){e.forEach((e=>{e>=0&&(e<this.startSN&&(this.startSN=e),e>this.endSN&&(this.endSN=e))}))}_handleStats(e){this.gotStatsTs=l();const t=e.total_conns;t>0&&this.peersConnected!==t&&(this.peersConnected=t,this.logger.info(`${this.remotePeerId} now has ${this.peersConnected} peers`)),e.level&&(this.currentLevel=e.level),e.pos&&(this.currentPo