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don't run afterSyncCompleted and next sync request in parallel

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as the otk count the next sync request reports will be outdated
if afterSyncCompleted uploaded OTKs, and the next afterSyncCompleted
, having the wrong server OTK count, will again upload OTKs.

This will overwrite existing OTK keys which will
throw BAD_MESSAGE_KEY_ID when creating new sessions with those OTKs
This commit is contained in:
Bruno Windels 2020-09-21 17:53:29 +02:00
parent a86b25736c
commit 4dfbd3f3cd
1 changed files with 3 additions and 7 deletions
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10
src/matrix/Sync.js
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@ -93,14 +93,13 @@ export class Sync {
} }
async _syncLoop(syncToken) { async _syncLoop(syncToken) {
let afterSyncCompletedPromise = Promise.resolve();
// if syncToken is falsy, it will first do an initial sync ... // if syncToken is falsy, it will first do an initial sync ...
while(this._status.get() !== SyncStatus.Stopped) { while(this._status.get() !== SyncStatus.Stopped) {
let roomStates; let roomStates;
try { try {
console.log(`starting sync request with since ${syncToken} ...`); console.log(`starting sync request with since ${syncToken} ...`);
const timeout = syncToken ? INCREMENTAL_TIMEOUT : undefined; const timeout = syncToken ? INCREMENTAL_TIMEOUT : undefined;
const syncResult = await this._syncRequest(syncToken, timeout, afterSyncCompletedPromise); const syncResult = await this._syncRequest(syncToken, timeout);
syncToken = syncResult.syncToken; syncToken = syncResult.syncToken;
roomStates = syncResult.roomStates; roomStates = syncResult.roomStates;
this._status.set(SyncStatus.Syncing); this._status.set(SyncStatus.Syncing);
@ -113,7 +112,7 @@ export class Sync {
} }
} }
if (this._status.get() !== SyncStatus.Stopped) { if (this._status.get() !== SyncStatus.Stopped) {
afterSyncCompletedPromise = this._runAfterSyncCompleted(roomStates); await this._runAfterSyncCompleted(roomStates);
} }
} }
} }
@ -144,7 +143,7 @@ export class Sync {
await Promise.all(roomsPromises.concat(sessionPromise)); await Promise.all(roomsPromises.concat(sessionPromise));
} }
async _syncRequest(syncToken, timeout, prevAfterSyncCompletedPromise) { async _syncRequest(syncToken, timeout) {
let {syncFilterId} = this._session; let {syncFilterId} = this._session;
if (typeof syncFilterId !== "string") { if (typeof syncFilterId !== "string") {
this._currentRequest = this._hsApi.createFilter(this._session.user.id, {room: {state: {lazy_load_members: true}}}); this._currentRequest = this._hsApi.createFilter(this._session.user.id, {room: {state: {lazy_load_members: true}}});
@ -153,9 +152,6 @@ export class Sync {
const totalRequestTimeout = timeout + (80 * 1000); // same as riot-web, don't get stuck on wedged long requests const totalRequestTimeout = timeout + (80 * 1000); // same as riot-web, don't get stuck on wedged long requests
this._currentRequest = this._hsApi.sync(syncToken, syncFilterId, timeout, {timeout: totalRequestTimeout}); this._currentRequest = this._hsApi.sync(syncToken, syncFilterId, timeout, {timeout: totalRequestTimeout});
const response = await this._currentRequest.response(); const response = await this._currentRequest.response();
// wait here for the afterSyncCompleted step of the previous sync to complete
// before we continue processing this sync response
await prevAfterSyncCompletedPromise;
const isInitialSync = !syncToken; const isInitialSync = !syncToken;
syncToken = response.next_batch; syncToken = response.next_batch;