fix(fe/worker): refactor fe uploading functions to improve robustness

src/client/web/src/i18n/en_US.ts

@@ -114,7 +114,7 @@ export const msgs: Map<string, string> = Map({
   "upload.add.fail": "Some files conflict with uploading files, please check.",
   "server.fail": "The operation failed in the server",
   "err.updater": "updater error",
-  "err.uploadMgr": "upload Manager error",
+  "err.uploadMgr": "Upload Manager error",
   "err.server": "The operation failed in the server",
   "err.script.cors": "script error with CORS",
   "err.unknown": "unknown error",

src/client/web/src/worker/chunk_uploader.ts

@@ -7,7 +7,7 @@ import { UploadStatus, UploadState } from "./interface";
 const defaultChunkLen = 1024 * 1024 * 1;
 const speedDownRatio = 0.5;
 const speedUpRatio = 1.1;
-const speedLimit = 1024 * 1024 * 10; // 10MB
+const chunkLimit = 1024 * 1024 * 50; // 50MB
 const createRetryLimit = 512;
 const uploadRetryLimit = 1024;
 const backoffMax = 2000;
@@ -70,8 +70,8 @@ export class ChunkUploader {
   ): Promise<UploadStatus> => {
     if (this.chunkLen === 0) {
       this.chunkLen = 1; // reset it to 1B
-    } else if (this.chunkLen > speedLimit) {
-      this.chunkLen = speedLimit;
+    } else if (this.chunkLen > chunkLimit) {
+      this.chunkLen = chunkLimit;
     } else if (uploaded > file.size) {
       return {
         filePath,
@@ -143,7 +143,9 @@ export class ChunkUploader {
           filePath,
           uploaded,
           state: UploadState.Error,
-          err: `failed to upload chunk: ${uploadResp.statusText}, ${JSON.stringify(uploadResp.data)}`,
+          err: `failed to upload chunk: ${
+            uploadResp.statusText
+          }, ${JSON.stringify(uploadResp.data)}`,
         };
       }
 

src/client/web/src/worker/interface.ts

@@ -31,7 +31,7 @@ export interface IChunkUploader {
   ) => Promise<UploadStatus>;
 }
 
-export type eventKind = SyncReqKind | ErrKind | UploadInfoKind;
+export type eventKind = SyncReqKind | ErrKind | UploadInfoKind | ImIdleKind;
 export interface WorkerEvent {
   kind: eventKind;
 }
@@ -41,7 +41,7 @@ export const syncReqKind: SyncReqKind = "worker.req.sync";
 
 export interface SyncReq extends WorkerEvent {
   kind: SyncReqKind;
-  file: File,
+  file: File;
   filePath: string;
   size: number;
   uploaded: number;
@@ -69,7 +69,13 @@ export interface UploadInfoResp extends WorkerEvent {
   err: string;
 }
 
-export type FileWorkerResp = ErrResp | UploadInfoResp;
+export type ImIdleKind = "worker.resp.idle";
+export const imIdleKind: ImIdleKind = "worker.resp.idle";
+export interface ImIdleResp extends WorkerEvent {
+  kind: ImIdleKind;
+}
+
+export type FileWorkerResp = ErrResp | UploadInfoResp | ImIdleResp;
 
 export class MockWorker {
   constructor() {}

src/client/web/src/worker/upload.baseworker.ts

@@ -5,7 +5,9 @@ import {
   SyncReq,
   errKind,
   ErrResp,
+  ImIdleResp,
   uploadInfoKind,
+  imIdleKind,
   UploadInfoResp,
   FileWorkerResp,
   UploadStatus,
@@ -13,14 +15,32 @@ import {
   IChunkUploader,
 } from "./interface";
 
+const win: Window = self as any;
+
 export class UploadWorker {
   private uploader: IChunkUploader = new ChunkUploader();
+  private cycle: number = 100;
+  private working: boolean = false;
+
   sendEvent = (resp: FileWorkerResp): void => {
     // TODO: make this abstract
     throw new Error("not implemented");
   };
 
-  constructor() {}
+  constructor() {
+    win.setInterval(this.checkIdle, this.cycle);
+  }
+
+  checkIdle = () => {
+    if (this.working) {
+      return;
+    }
+
+    const resp: ImIdleResp = {
+      kind: imIdleKind,
+    };
+    this.sendEvent(resp);
+  };
 
   setUploader = (uploader: IChunkUploader) => {
     this.uploader = uploader;
@@ -46,7 +66,8 @@ export class UploadWorker {
     }
   };
 
-  onMsg = (event: MessageEvent) => {
+  onMsg = async (event: MessageEvent) => {
+    this.working = true;
     const req = event.data as FileWorkerReq;
 
     switch (req.kind) {
@@ -54,19 +75,25 @@ export class UploadWorker {
         const syncReq = req as SyncReq;
 
         if (syncReq.created) {
-          this.uploader
-            .upload(syncReq.filePath, syncReq.file, syncReq.uploaded)
-            .then(this.handleUploadStatus);
+          const status = await this.uploader.upload(
+            syncReq.filePath,
+            syncReq.file,
+            syncReq.uploaded
+          );
+          await this.handleUploadStatus(status);
         } else {
-          this.uploader
-            .create(syncReq.filePath, syncReq.file)
-            .then(this.handleUploadStatus);
+          const status = await this.uploader.create(
+            syncReq.filePath,
+            syncReq.file
+          );
+          await this.handleUploadStatus(status);
         }
-
         break;
       default:
         console.error(`unknown worker request(${JSON.stringify(req)})`);
     }
+
+    this.working = false;
   };
 
   onError = (ev: ErrorEvent) => {

src/client/web/src/worker/upload_mgr.ts

@@ -9,6 +9,7 @@ import {
   syncReqKind,
   errKind,
   uploadInfoKind,
+  imIdleKind,
   UploadState,
 } from "./interface";
 import { errUploadMgr } from "../common/errors";
@@ -35,8 +36,9 @@ export class UploadMgr {
   constructor(worker: IWorker) {
     this.worker = worker;
     this.worker.onmessage = this.respHandler;
+  }
 
-    const syncing = () => {
+  syncing = () => {
     if (this.infos.size === 0) {
       return;
     }
@@ -73,12 +75,6 @@ export class UploadMgr {
 
     this.idx++;
   };
-    this.intervalID = win.setInterval(syncing, this.cycle);
-  }
-
-  destory = () => {
-    win.clearInterval(this.intervalID);
-  };
 
   _setInfos = (infos: OrderedMap<string, UploadEntry>) => {
     this.infos = infos;
@@ -187,6 +183,9 @@ export class UploadMgr {
     const resp = event.data as FileWorkerResp;
 
     switch (resp.kind) {
+      case imIdleKind:
+        this.syncing();
+        break;
       case errKind:
         const errResp = resp as ErrResp;
         const errEntry = this.infos.get(errResp.filePath);

src/handlers/fileshdr/handlers.go

@@ -18,9 +18,9 @@ import (
 	"github.com/ihexxa/gocfg"
 	"github.com/ihexxa/multipart"
 
+	"github.com/ihexxa/quickshare/src/db/userstore"
 	"github.com/ihexxa/quickshare/src/depidx"
 	q "github.com/ihexxa/quickshare/src/handlers"
-	"github.com/ihexxa/quickshare/src/db/userstore"
 	"github.com/ihexxa/quickshare/src/worker/localworker"
 )
 
@@ -793,11 +793,21 @@ func (h *FileHandlers) DelUploading(c *gin.Context) {
 			return
 		}
 
+		_, err = h.deps.FS().Stat(tmpFilePath)
+		if err != nil {
+			if os.IsNotExist(err) {
+				// no op
+			} else {
+				c.JSON(q.ErrResp(c, 500, err))
+				return
+			}
+		} else {
 			err = h.deps.FS().Remove(tmpFilePath)
 			if err != nil {
 				c.JSON(q.ErrResp(c, 500, err))
 				return
 			}
+		}
 
 		err = h.uploadMgr.DelInfo(userID, tmpFilePath)
 		if err != nil {