UNPKG

@masvio/uploader

Version:

A simple, lightweight library to easily share files using MASV

2 lines (1 loc) 28.4 kB
var MASV=function(d){"use strict";var o=(i=>(i.Created="uploader:create",i.Start="upload:start",i.Progress="upload:progress",i.Chunk="upload:chunk",i.File="upload:file",i.Error="upload:error",i.Finished="upload:finish",i.Finalize="upload:finalize",i.FileQueued="upload:file_queued",i.Abort="upload:abort",i.Retry="upload:retry",i.Stalled="upload:stalled",i.FileUnreadable="upload:file_unreadable",i))(o||{}),h=(i=>(i.Created="worker:create",i.Execute="worker:execute",i.Finish="worker:finish",i.Error="worker:error",i.Retry="worker:retry",i.Progress="worker:progress",i.Terminate="worker:terminate",i.Abort="worker:abort",i))(h||{});class c{constructor(){this.handlers={}}on(e,t){this.handlers[e]||(this.handlers[e]=[]),this.handlers[e].push(t)}off(e,t){if(t==null){this.handlers[e]=[];return}this.handlers[e]&&(this.handlers[e]=this.handlers[e].filter(s=>s!==t))}clearHandlers(){this.handlers={}}emit(e,t){const s={time:Date.now(),event:e,target:this,data:{},...t};this.handlers[e]&&this.handlers[e].forEach(r=>{r(s)}),this.handlers.emit!=null&&this.handlers.emit.forEach(r=>{r(s)})}bubbleEmit(e){"event"in e&&this.emit(e.event,{...e})}}const 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self<"u"&&self.Blob&&new Blob(["URL.revokeObjectURL(import.meta.url);",W(B)],{type:"text/javascript;charset=utf-8"});function y(i){let e;try{if(e=f&&(self.URL||self.webkitURL).createObjectURL(f),!e)throw"";const t=new Worker(e,{type:"module",name:i?.name});return t.addEventListener("error",()=>{(self.URL||self.webkitURL).revokeObjectURL(e)}),t}catch{return new Worker("data:text/javascript;base64,"+B,{type:"module",name:i?.name})}}class F extends c{constructor(e,t,s,r,n){super(),this.apiBaseUrl=e,this.chunkSize=t,this.packageID=s,this.packageToken=r,this.masvUserAgent=n,this.terminated=!1,this.onNativeWorkerMessage=u=>{const{name:a,data:g}=u.data;this.emit(a,{data:g})},this.emit(h.Created),this.startWorker()}startWorker(){this.nativeWorker=new y,this.nativeWorker.onmessage=this.onNativeWorkerMessage,this.nativeWorker.postMessage({name:"Init",input:{packageToken:this.packageToken,apiBaseUrl:this.apiBaseUrl,packageID:this.packageID,masvUserAgent:this.masvUserAgent,chunkSize:this.chunkSize}})}stopWorker(){this.nativeWorker.onmessage=null,this.nativeWorker.terminate()}createFile(e,t){if(this.terminated)throw new Error("Can't use a terminated worker");this.nativeWorker.postMessage({name:"Chunk",input:e,spec:t})}abort(){this.stopWorker(),this.startWorker()}terminate(){this.terminated=!0,this.emit(h.Terminate),this.clearHandlers(),this.nativeWorker.terminate()}}class V extends c{constructor(e,t,s,r,n=6,u){super(),this.workers=new Array,this.counter=0,this.terminated=!1;let a;for(let g=0;g<n;g++)a=new F(e,t,s,r,u),a.on("emit",this.bubbleEmit.bind(this)),this.workers.push(a)}createFile(e,t){const s=this.workers[this.counter%this.workers.length];if(this.terminated)throw new m;this.counter++,s.createFile(e,t)}abort(){this.workers.forEach(e=>e.abort())}terminate(){this.terminated=!0,this.workers.forEach(e=>e.terminate()),this.clearHandlers()}}const 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self<"u"&&self.Blob&&new Blob(["URL.revokeObjectURL(import.meta.url);",H(k)],{type:"text/javascript;charset=utf-8"});function X(i){let e;try{if(e=Z&&(self.URL||self.webkitURL).createObjectURL(Z),!e)throw"";const t=new Worker(e,{type:"module",name:i?.name});return t.addEventListener("error",()=>{(self.URL||self.webkitURL).revokeObjectURL(e)}),t}catch{return new Worker("data:text/javascript;base64,"+k,{type:"module",name:i?.name})}}var l=(i=>(i.AddChunk="add_chunk",i.UploadFile="upload_file",i.FinalizeFile="finalize_file",i.FinalizePackage="finalize_package",i.CancelPackage="cancel_package",i.Error="error",i))(l||{});class v extends c{constructor(e=!1){super(),this.terminated=!1,this.onNativeWorkerMessage=t=>{const{name:s,payload:r}=t.data;this.emit(s,{data:r})},this.startWorker(e),this.emit(h.Created)}startWorker(e=!1){this.nativeWorker=new X,this.nativeWorker.onmessage=this.onNativeWorkerMessage,this.nativeWorker.postMessage({message:"config",retry400:e})}execute(e){if(this.terminated)throw new Error("Can't run a terminated worker");this.emit(h.Execute,{data:e}),this.nativeWorker.postMessage({message:"request",...e})}abort(){this.nativeWorker.postMessage({message:"abort"})}terminate(){this.terminated=!0,this.emit(h.Terminate),this.clearHandlers(),this.nativeWorker.terminate()}}const z=1600*1e3;class K extends c{constructor(e,t,s,r,n,u=6,a){super(),this.apiBaseUrl=e,this.packageID=r,this.packageToken=n,this.poolSize=u,this.masvUserAgent=a,this.apiXhrExecutor=t,this.storageXhrExecutor=s,this.emit(o.Created),this.storageXhrExecutor.on(h.Progress,g=>this.onStorageProgress(g)),this.storageXhrExecutor.on(h.Abort,g=>this.onStorageAbort(g)),this.storageXhrExecutor.on(h.Retry,g=>this.onStorageRetry(g)),this.storageXhrExecutor.on(h.Finish,g=>this.onStorageFinish(g)),this.storageXhrExecutor.on(h.Error,g=>this.onStorageError(g))}upload(e){const t=e.chunks.filter(s=>!s.isFinished).map(s=>({fileId:e.id,sequence:s.index,timeout:z,...s.chunk,type:l.UploadFile}));return this.emit(o.Start,{data:e}),e.running=!0,this.storageXhrExecutor.execute(...t),e}abort(){this.storageXhrExecutor.abort(),this.apiXhrExecutor.abort()}onStorageProgress(e){const t=e.data;e.data.input.type===l.UploadFile&&this.bubbleEmit({event:o.Progress,target:e.target,data:t})}onStorageFinish(e){const t=e.data;t.req.type===l.UploadFile&&this.bubbleEmit({event:o.Chunk,target:e.target,data:t})}onStorageAbort(e){const t=e.data;t.type===l.UploadFile&&this.bubbleEmit({event:o.Abort,target:e.target,data:t})}onStorageRetry(e){const t=e.data;t.input.type===l.UploadFile&&this.bubbleEmit({event:o.Retry,target:e.target,data:t})}onStorageError(e){const t=e.data;this.bubbleEmit({event:o.Error,target:e.target,data:t})}}class w extends c{constructor(e=6,t=!1){super(),this.workers=new Array,this.counter=0,this.retry400Errors=!1,this.terminated=!1,this.retry400Errors=t,this.initWorkerPool(e)}initWorkerPool(e=6){for(let t=0;t<e;t++){let s=new v(this.retry400Errors);s.on("emit",this.bubbleEmit.bind(this)),this.workers.push(s)}}stopWorkerPool(){this.workers.forEach(e=>{e.terminate()})}abort(){this.workers.forEach(e=>e.abort())}execute(...e){if(this.terminated)throw new m;for(let t of e)this.workers[this.counter++%this.workers.length].execute(t)}terminate(){this.terminated=!0,this.clearHandlers(),this.stopWorkerPool()}}let L=0;const N=Date.now();function U(){return"randomUUID"in crypto?crypto.randomUUID():`${N}_${L++}`}class Y{constructor(){this.queue={}}getFile(e){return this.queue[e]}addFile(e){const t=new x(e);return this.queue[e.fileId]=t,t}removeFile(e){delete this.queue[e]}setProgress(e,t,s){const r=this.getFile(e);if(!r)return;const n=r.getChunk(t);if(n)return n.setProgress(s),n}get length(){return Object.keys(this.queue).length}get totalChunks(){return Object.values(this.queue).reduce((e,t)=>e+t.chunks.length,0)}get totalChunksInProgress(){return Object.values(this.queue).reduce((e,t)=>e+t.chunksInProgress,0)}}class x{constructor({fileId:e,req:t,file:s,chunks:r,storageType:n,fileExtras:u}){this.chunks=[],this.running=!1,this.finalized=!1,this.id=e,this.req=t,this.file=s,this.chunks=r.map((a,g)=>new P(a,g)),this.chunkSize=t.chunkSize>s.file.size?s.file.size:t.chunkSize,this.storageType=n,this.fileExtras=u}setChunkExtras({headers:e,req:t}){const s=t.sequence||0,r=this.chunks.find(u=>u.index===s);if(!r)return;const n=e.etag||e.ETag||e.Etag;r.setExtras({partNumber:String(s+1),etag:n})}getChunk(e){return this.chunks[e]}validateMissingEtags(){return this.chunks.filter(e=>e.extras==null||e.extras.etag==null)}get isFinished(){return this.chunks.every(e=>e.isFinished)}get inProgress(){return this.chunks.some(e=>e.currentBytes>0)&&!this.isFinished}get currentBytes(){return this.chunks.reduce((e,t)=>e+t.currentBytes,0)}get totalBytes(){return this.chunks.reduce((e,t)=>e+t.totalBytes,0)}get chunksInProgress(){return this.chunks.filter(e=>!e.isFinished).length}}class P{constructor(e,t){this._currentBytes=0,this.extras=null,this.index=t,this.chunk=e}setProgress(e){this._currentBytes=e}setExtras(e){this.extras=e}get etag(){return this.extras?.etag}get currentBytes(){return this._currentBytes}get totalBytes(){return this.chunk.body.size}get inProgress(){return this.currentBytes>0&&!this.isFinished}get isFinished(){return this.currentBytes>=this.totalBytes&&this.extras!=null}}class T{constructor(e){if(this.ma=0,this.v=0,this.d=0,this.f=0,this.previousTime=0,e<=0)throw new Error("must provide a timespan > 0 to the moving average constructor");this.timespan=e}alpha(e,t){return 1-Math.exp(-(e-t)/this.timespan)}push(e,t){if(this.previousTime>0){const s=this.alpha(e,this.previousTime),r=t-this.ma,n=s*r;this.ma=s*t+(1-s)*this.ma,this.v=(1-s)*(this.v+r*n),this.d=Math.sqrt(this.v),this.f=this.ma+s*r}else this.ma=t;this.previousTime=e}movingAverage(){return this.ma}variance(){return this.v}deviation(){return this.d}forecast(){return this.f}}var I=(i=>(i.Start="upload_start",i.Stop="upload_stop",i.Pause="upload_pause",i.Finish="upload_finish",i.Continue="upload_continue",i))(I||{});const A=500;class R{constructor(){this.transferred=0,this.received=0,this.finalized=0,this.finalizedFiles=0,this.total=0,this.totalFiles=0,this.marks={upload_start:[],upload_pause:[],upload_continue:[],upload_finish:[],upload_stop:[]},this.moving=new T(A),this.debounceAverage=!1,this.lastSampleAmount=0,this.progress=0,this.instantSpeed=0,this.movingSpeed=0,this.duration=0,this.timer=-1}mark(e){this.marks[e]&&(e==="upload_start"||e==="upload_continue"?this.record(performance.now()):this.stopTimer(),this.marks[e].push(Date.now()))}record(e){this.timer=requestAnimationFrame(t=>{this.duration+=t-e,this.record(t)})}stopTimer(){cancelAnimationFrame(this.timer)}clear(e){this.marks[e]=[]}setTotal(e){this.total=e}setTotalFiles(e){this.totalFiles=e}addData(e=0){const t=Date.now();if(this.transferred+=e,this.progress+=e,this.debounceAverage)return;this.debounceAverage=!0;const s=this.transferred-this.lastSampleAmount;this.instantSpeed=s/(A/1e3),this.lastSampleAmount=this.transferred,this.moving.push(t,this.instantSpeed),this.movingSpeed=this.moving.movingAverage(),setTimeout(()=>{this.debounceAverage=!1},A)}addReceived(e=0){this.received+=e}addFinalizedFile(e=0){this.finalized+=e,this.finalizedFiles++}subtractProgress(e=0){this.progress-=e}getStats(){return{duration:this.duration,speed:this.averageSpeed,instant:this.instantSpeed,moving:this.movingSpeed,transferred:this.transferred,total:this.total,totalFiles:this.totalFiles,progress:this.progress,received:this.received,finalized:this.finalized,finalizedFiles:this.finalizedFiles}}get averageSpeed(){return this.transferred/(this.duration/1e3)}}const C=6,E="masv-web",Q="masv-web-uploader",D="dev";var G=(i=>(i.Idle="idle",i.Uploading="uploading",i.Processing="processing",i.Ready="ready",i.Paused="paused",i.Finished="finished",i.Terminated="terminated",i.Cancelled="cancelled",i))(G||{});const p=class p extends c{constructor(e,t,s="https://api.massive.app",r=104857600,n=`${E}/${D}`,u=6e4){super(),this.packageID=e,this.packageToken=t,this.apiBaseUrl=s,this.stallTimeout=u,this.stallTimer=-1,this.performanceStats=new R,this.version="2.2.5",this.uploadState=new Y,this.fileQueue=[],this.createQueue=new Set,this.unreadableFiles=new Set,this.status="idle",this.spec={max_chunk_count:1e4,max_chunk_size:5368709120,min_chunk_size:5242880},this.masvUserAgent=`${n}+${Q}/${this.version}`,this.apiXhrExecutor=new w(C),this.storageXhrExecutor=new w(C,!0),this.fchunker=new V(s,r,e,t,C,this.masvUserAgent),this.fuploader=new K(s,this.apiXhrExecutor,this.storageXhrExecutor,e,t,C,this.masvUserAgent),this.fchunker.on(h.Finish,a=>this.onChunkFinish(a)),this.fuploader.on(o.Progress,a=>{this.onUploadProgress(a)}),this.fuploader.on(o.Chunk,a=>this.onChunkUploadFinish(a)),this.fuploader.on(o.Abort,a=>this.onUploadAbort(a)),this.fuploader.on(o.Retry,a=>this.onUploadRetry(a)),this.fuploader.on(o.Error,a=>this.onUploadError(a)),this.fchunker.on("emit",this.bubbleEmit.bind(this)),this.fuploader.on("emit",this.bubbleEmit.bind(this)),this.apiXhrExecutor.on(h.Finish,a=>this.onAPIFinish(a))}resetStallTimer(){clearTimeout(this.stallTimer),this.stallTimer=setTimeout(()=>{this.emit(o.Stalled)},this.stallTimeout)}popNextFile(){return this.fileQueue.pop()}get nextFile(){return this.fileQueue[this.fileQueue.length-1]}get canUploadFile(){return this.nextFile==null||this.uploadState.totalChunksInProgress+this.createQueue.size>=C?!1:this.status==="ready"||this.status==="uploading"}get hasFinished(){return this.nextFile===void 0&&this.uploadState.length===0&&this.fileQueue.length===0&&this.createQueue.size===0}onUploadProgress({data:e}){this.resetStallTimer(),e.input.fileId&&this.uploadState.setProgress(e.input.fileId,e.input.sequence||0,e.loaded),this.performanceStats.addData(e.transferred)}onChunkFinish({data:e}){this.emit(o.FileQueued,{data:e});const t=this.uploadState.addFile(e);this.resetStallTimer(),this.createQueue.delete(e.file.id),t.totalBytes===0?t.file.file.stream().getReader().read().then(()=>{t.running=!0,this.finalizeFile(t)}).catch(n=>{this.setUnreadableFile(t,n.message)}):this.fuploader.upload(t),this.uploadNext()}onUploadAbort({data:e}){const{fileId:t="",sequence:s=0}=e,r=this.uploadState.getFile(t)?.getChunk(s).currentBytes??0;this.performanceStats.subtractProgress(r),this.uploadState.setProgress(t,s,0)}onUploadRetry({data:e}){const{fileId:t="",sequence:s=0}=e.input,r=this.uploadState.getFile(t)?.getChunk(s).currentBytes??0;this.performanceStats.subtractProgress(r),this.uploadState.setProgress(t,s,0)}onUploadError({data:e}){const{fileId:t=""}=e.input;let{message:s="generic upload error"}=e.error;const r=this.uploadState.getFile(t);r!=null&&this.setUnreadableFile(r,s)}onChunkUploadFinish({data:e}){const{fileId:t="",sequence:s=0}=e.req,r=this.uploadState.getFile(t);if(r){const n=r.getChunk(s);this.performanceStats.addReceived(n.totalBytes),r.setChunkExtras(e),r.isFinished&&(this.emit(o.File,{data:r}),this.finalizeFile(r))}this.uploadNext()}onAPIFinish({data:e}){const t=[200,201,204];if(e.req.type===l.FinalizeFile){const s=this.uploadState.getFile(e.req.fileId);if(s)if(t.includes(e.statusCode))s.finalized=!0,s.running=!1,this.performanceStats.addFinalizedFile(s.file.file.size),this.uploadState.removeFile(s.id),this.emit(o.Finalize,{data:s});else{this.setUnreadableFile(s,`unexpected status code for finalize file request: ${e.statusCode}`),this.hasFinished&&this.stop();return}this.uploadNext(),this.hasFinished&&(this.stop(),this.unreadableFiles.size>0?this.markAsStalled():this.finalize())}e.req.type===l.FinalizePackage&&(t.includes(e.statusCode)?(this.performanceStats.mark(I.Finish),this.emit(o.Finished,{data:this.getPerformanceStats()}),this.status="finished",this.terminate()):(this.markAsStalled(`unexpected status code for finalize package request: ${e.statusCode}`),this.stop())),e.req.type===l.CancelPackage&&this.terminate()}setUnreadableFile(e,t){this.emit(o.FileUnreadable,{data:e}),t==="network error"&&(t="file is unreadable (network error)"),this.unreadableFiles.add({id:e.id,name:e.file?.file?.name,path:e.file?.path,size:e.file?.file?.size,errorMessage:t,errorTimestamp:new Date().toISOString()}),this.uploadState.removeFile(e.id),this.hasFinished&&this.markAsStalled(),this.uploadNext()}markAsStalled(e="Upload has become stalled due to unreadable files"){this.unreadableFiles.size>0&&(e=[...this.unreadableFiles.values()][0].errorMessage);const t={error_code:"upload_stalled",error_message:e,event_time:new Date().toISOString(),extras:this.getProgressSummary()};this.apiXhrExecutor.execute({url:`${this.apiBaseUrl}/v1/packages/${this.packageID}/error`,method:"POST",headers:{"Content-Type":"application/json","X-Package-Token":this.packageToken,"Masv-User-Agent":this.masvUserAgent},body:JSON.stringify(t),timeout:1e4,type:l.Error}),this.emit(o.Stalled),clearTimeout(this.stallTimer)}async addFiles(...e){this.status="processing",this.performanceStats.setTotalFiles(e.length),this.performanceStats.setTotal(e.reduce((t,s)=>t+s.file.size,0)),this.status="ready",this.fileQueue=e,this.spec=await this.getSpec(),this.start()}start(){if(this.status==="uploading")return;this.resetStallTimer(),this.status="uploading";const{transferred:e}=this.performanceStats.getStats();if(e>0?this.performanceStats.mark(I.Continue):this.performanceStats.mark(I.Start),this.uploadState.totalChunksInProgress>0){const t=Object.values(this.uploadState.queue);for(let s of t)this.fuploader.upload(s)}else this.uploadNext()}async getSpec(e=0){let t;try{t=await fetch(`${this.apiBaseUrl}/v1/system/packages/spec`,{method:"GET",headers:{"Content-Type":"application/json","Masv-User-Agent":this.masvUserAgent}})}catch{}if(t){const s=await t.json();if(t.ok)return s;if(t.status>=500&&e<5)return this.getSpec(e++)}return{max_chunk_count:1e4,max_chunk_size:5368709120,min_chunk_size:5242880}}uploadNext(){if(!this.canUploadFile)return;const e=this.popNextFile();e&&(e.id==null&&(e.id=U()),this.createQueue.add(e.id),this.fchunker.createFile(e,this.spec))}stop(){this.status="idle",this.performanceStats.mark(I.Stop)}pause(){this.status!=="paused"&&(clearTimeout(this.stallTimer),this.status="paused",this.performanceStats.mark(I.Pause),this.fuploader.abort())}terminate(){this.status!=="terminated"&&(this.status="terminated",this.clearHandlers(),this.storageXhrExecutor.terminate(),this.apiXhrExecutor.terminate(),this.fchunker.terminate())}cancel(){this.pause(),this.status="cancelled",this.apiXhrExecutor.execute({url:`${this.apiBaseUrl}/v1/packages/${this.packageID}`,method:"DELETE",headers:{"X-Package-Token":this.packageToken,"Masv-User-Agent":this.masvUserAgent},timeout:1e4,type:l.CancelPackage})}finalizeFile(e){if(e.validateMissingEtags().length>0){this.fuploader.upload(e);return}const{id:s,fileExtras:r,chunkSize:n,file:u,chunks:a}=e,g=a.map(J=>J.extras);this.apiXhrExecutor.execute({url:`${this.apiBaseUrl}/v1/packages/${this.packageID}/files/${s}/finalize`,method:"POST",headers:{"Content-Type":"application/json","X-Package-Token":this.packageToken,"Masv-User-Agent":this.masvUserAgent},body:JSON.stringify({fileExtras:r,chunk_size:n,size:u.file.size,chunkExtras:g}),timeout:6e4,fileId:s,type:l.FinalizeFile})}getIncompleteFiles(){return{queued:this.fileQueue,creating:[...this.createQueue],uploading:Object.values(this.uploadState.queue),unreadable:[...this.unreadableFiles]}}finalize(){clearTimeout(this.stallTimer),this.apiXhrExecutor.execute({url:`${this.apiBaseUrl}/v1/packages/${this.packageID}/finalize`,method:"POST",headers:{"Content-Type":"application/json","X-Package-Token":this.packageToken,"Masv-User-Agent":this.masvUserAgent},timeout:6e4,type:l.FinalizePackage})}getPerformanceStats(){return this.performanceStats.getStats()}getProgressSummary(){const e=this.performanceStats.getStats();return{finalizedBytes:String(e.finalized),finalizedFiles:String(e.finalizedFiles),totalBytes:String(e.total),totalFiles:String(e.totalFiles),unreadableFiles:String(this.unreadableFiles.size)}}};p.UploaderEvents=o,p.States=G;let b=p;class S extends Error{constructor(e,t){super("HTTP error "+e),this.statusCode=e,this.bytesTransferred=t,Object.setPrototypeOf(this,S.prototype)}getStatusCode(){return this.statusCode}getBytesTransferred(){return this.bytesTransferred}}class m extends Error{constructor(){super("Terminated"),Object.setPrototypeOf(this,m.prototype)}}return d.HttpError=S,d.TerminatedError=m,d.Uploader=b,Object.defineProperty(d,Symbol.toStringTag,{value:"Module"}),d}({});