fix(ui): fix file loading, fix network request status display

frontend/app/player/web/MessageManager.ts

@@ -30,7 +30,7 @@ import type {
   MouseClick,
 } from './messages';
 
-import { loadFiles, requestEFSDom, requestEFSDevtools } from './network/loadFiles';
+import { loadFiles, requestEFSDom, requestEFSDevtools, NO_FILE_OK } from './network/loadFiles';
 import { decryptSessionBytes } from './network/crypto';
 
 import Lists, { INITIAL_STATE as LISTS_INITIAL_STATE, State as ListsState } from './Lists';
@@ -220,20 +220,21 @@ export default class MessageManager {
 
     this.waitingForFiles = true
 
-    let fileReadPromise = this.session.domURL && this.session.domURL.length > 0
-      ? loadFiles(this.session.domURL, createNewParser())
-      : Promise.reject()
-    fileReadPromise
+    const loadMethod = this.session.domURL && this.session.domURL.length > 0
+      ? { url: this.session.domURL, parser: createNewParser }
+      : { url: this.session.mobsUrl, parser: () => createNewParser(false)}
+
+    loadFiles(loadMethod.url, loadMethod.parser())
     // EFS fallback
-    .catch(() => requestEFSDom(this.session.sessionId).then(createNewParser(false)))
-    // old url fallback
-    .catch(e => {
-      logger.error('Can not get normal session replay file:', e)
-      // back compat fallback to an old mobsUrl
-      return loadFiles(this.session.mobsUrl, createNewParser(false))
+    .catch((e) => {
+      if (e === NO_FILE_OK) {
+        console.log(e, 'getting unprocessed file')
+        requestEFSDom(this.session.sessionId).then(createNewParser(false))
+      } else {
+        this.onFileReadFailed(e)
+      }
     })
     .then(this.onFileReadSuccess)
-    .catch(this.onFileReadFailed)
     .finally(this.onFileReadFinally)
 
     // load devtools

frontend/app/player/web/network/loadFiles.ts

@@ -1,31 +1,20 @@
 import APIClient from 'App/api_client';
 
-const NO_FILE_OK = "No-file-but-this-is-ok"
+export const NO_FILE_OK = "No-file-but-this-is-ok"
 const NO_BACKUP_FILE = "No-efs-file"
 
-export const loadFiles = (
+export const loadFiles = async (
   urls: string[],
   onData: (data: Uint8Array) => void,
 ): Promise<void> => {
   if (!urls.length) {
     return Promise.reject("No urls provided")
   }
-  return urls.reduce((p, url, index) =>
-    p.then(() =>
-      window.fetch(url)
-      .then(r => {
-        return processAPIStreamResponse(r, index===0)
-      })
-      .then(onData)
-    ),
-    Promise.resolve(),
-  )
-  .catch(e => {
-    if (e === NO_FILE_OK) {
-      return
-    }
-    throw e
-  })
+  for (let url of urls) {
+    const stream = await window.fetch(url)
+    const data = await processAPIStreamResponse(stream, url === urls[0])
+    onData(data)
+  }
 }
 
 export async function requestEFSDom(sessionId: string) {
@@ -47,8 +36,10 @@ async function requestEFSMobFile(filename: string) {
 
 const processAPIStreamResponse = (response: Response, canBeMissed: boolean) => {
   return new Promise<ArrayBuffer>((res, rej) => {
-    if (response.status === 404 && canBeMissed) {
-      return rej(NO_FILE_OK)
+    if (response.status === 404) {
+      if (canBeMissed) return rej(NO_FILE_OK)
+        // ignoring if 2nd mob file is missing
+      else return;
     }
     if (response.status >= 400) {
       return rej(`Bad file status code ${response.status}. Url: ${response.url}`)

frontend/app/types/session/resource.ts

@@ -10,7 +10,7 @@ const MEDIA = 'media' as const;
 const OTHER = 'other' as const;
 
 function getResourceStatus(status: number, success: boolean) {
-  if (status != null) return String(status);
+  if (status !== undefined) return String(status);
   if (typeof success === 'boolean' || typeof success === 'number') {
     return !!success
       ? '2xx-3xx'
@@ -19,16 +19,6 @@ function getResourceStatus(status: number, success: boolean) {
   return '2xx-3xx';
 }
 
-function getResourceSuccess(success: boolean, status: number) {
-  if (success != null) {
-    return !!success
-  }
-  if (status != null) {
-    return status < 400
-  }
-  return true
-}
-
 export const TYPES = {
   XHR,
   FETCH,
@@ -94,16 +84,18 @@ export default class Resource {
 
   constructor({ status, success, time, datetime, timestamp, timings, ...resource }: IResource) {
 
+    // adjusting for 201, 202 etc
+    const reqSuccess = 300 > status || success
     Object.assign(this, {
       ...resource,
       name: getResourceName(resource.url),
       status: getResourceStatus(status, success),
-      success: getResourceSuccess(success, status),
+      success: reqSuccess,
       time: typeof time === 'number' ? time : datetime || timestamp,
       ttfb: timings && timings.ttfb,
       timewidth: timings && timings.timewidth,
       timings,
-      isRed: !success || resource.score >= RED_BOUND,
+      isRed: !reqSuccess || resource.score >= RED_BOUND,
       isYellow: resource.score < RED_BOUND && resource.score >= YELLOW_BOUND,
     })
   }