mirrors/vector-im-hydrogen-web
1
0
Fork 0
mirror of https://github.com/vector-im/hydrogen-web.git synced 2024-12-23 11:35:04 +01:00
Code Issues Projects Releases Wiki Activity

remove isTimelineOpen flag and rather do the check to verify in Room

Browse Source 
flags are ugly, let's avoid them where we can
This commit is contained in:
Bruno Windels 2021-03-01 23:14:14 +01:00
parent e191880379
commit 3fa2d22015
2 changed files with 26 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
src/matrix/e2ee/RoomEncryption.js
View File

@ -93,7 +93,7 @@ export class RoomEncryption {
// this happens before entries exists, as they are created by the syncwriter // this happens before entries exists, as they are created by the syncwriter
// but we want to be able to map it back to something in the timeline easily // but we want to be able to map it back to something in the timeline easily
// when retrying decryption. // when retrying decryption.
async prepareDecryptAll(events, newKeys, source, isTimelineOpen, txn) { async prepareDecryptAll(events, newKeys, source, txn) {
const errors = new Map(); const errors = new Map();
const validEvents = []; const validEvents = [];
for (const event of events) { for (const event of events) {
@ -126,7 +126,7 @@ export class RoomEncryption {
if (customCache) { if (customCache) {
customCache.dispose(); customCache.dispose();
} }
return new DecryptionPreparation(preparation, errors, {isTimelineOpen, source}, this, events); return new DecryptionPreparation(preparation, errors, source, this, events);
} }
async _processDecryptionResults(events, results, errors, flags, txn) { async _processDecryptionResults(events, results, errors, flags, txn) {
@ -139,11 +139,6 @@ export class RoomEncryption {
this._missingSessionCandidates.removeEvent(event); this._missingSessionCandidates.removeEvent(event);
} }
} }
if (flags.isTimelineOpen) {
for (const result of results.values()) {
await this._verifyDecryptionResult(result, txn);
}
}
} }
async _verifyDecryptionResult(result, txn) { async _verifyDecryptionResult(result, txn) {
@ -424,10 +419,10 @@ export class RoomEncryption {
* the decryption results before turning them * the decryption results before turning them
*/ */
class DecryptionPreparation { class DecryptionPreparation {
constructor(megolmDecryptionPreparation, extraErrors, flags, roomEncryption, events) { constructor(megolmDecryptionPreparation, extraErrors, source, roomEncryption, events) {
this._megolmDecryptionPreparation = megolmDecryptionPreparation; this._megolmDecryptionPreparation = megolmDecryptionPreparation;
this._extraErrors = extraErrors; this._extraErrors = extraErrors;
this._flags = flags; this._source = source;
this._roomEncryption = roomEncryption; this._roomEncryption = roomEncryption;
this._events = events; this._events = events;
} }
@ -436,7 +431,7 @@ class DecryptionPreparation {
return new DecryptionChanges( return new DecryptionChanges(
await this._megolmDecryptionPreparation.decrypt(), await this._megolmDecryptionPreparation.decrypt(),
this._extraErrors, this._extraErrors,
this._flags, this._source,
this._roomEncryption, this._roomEncryption,
this._events); this._events);
} }
@ -447,10 +442,10 @@ class DecryptionPreparation {
} }
class DecryptionChanges { class DecryptionChanges {
constructor(megolmDecryptionChanges, extraErrors, flags, roomEncryption, events) { constructor(megolmDecryptionChanges, extraErrors, source, roomEncryption, events) {
this._megolmDecryptionChanges = megolmDecryptionChanges; this._megolmDecryptionChanges = megolmDecryptionChanges;
this._extraErrors = extraErrors; this._extraErrors = extraErrors;
this._flags = flags; this._source = source;
this._roomEncryption = roomEncryption; this._roomEncryption = roomEncryption;
this._events = events; this._events = events;
} }
@ -458,15 +453,16 @@ class DecryptionChanges {
async write(txn) { async write(txn) {
const {results, errors} = await this._megolmDecryptionChanges.write(txn); const {results, errors} = await this._megolmDecryptionChanges.write(txn);
mergeMap(this._extraErrors, errors); mergeMap(this._extraErrors, errors);
await this._roomEncryption._processDecryptionResults(this._events, results, errors, this._flags, txn); await this._roomEncryption._processDecryptionResults(this._events, results, errors, this._source, txn);
return new BatchDecryptionResult(results, errors); return new BatchDecryptionResult(results, errors, this._roomEncryption);
} }
} }
class BatchDecryptionResult { class BatchDecryptionResult {
constructor(results, errors) { constructor(results, errors, roomEncryption) {
this.results = results; this.results = results;
this.errors = errors; this.errors = errors;
this._roomEncryption = roomEncryption;
} }
applyToEntries(entries) { applyToEntries(entries) {
@ -482,6 +478,12 @@ class BatchDecryptionResult {
} }
} }
} }
verifySenders(txn) {
return Promise.all(Array.from(this.results.values()).map(result => {
return this._roomEncryption._verifyDecryptionResult(result, txn);
}));
}
} }
class SessionToEventIdsMap { class SessionToEventIdsMap {

12
src/matrix/room/Room.js
View File

@ -147,13 +147,13 @@ export class Room extends EventEmitter {
const events = entries.filter(entry => { const events = entries.filter(entry => {
return entry.eventType === EVENT_ENCRYPTED_TYPE; return entry.eventType === EVENT_ENCRYPTED_TYPE;
}).map(entry => entry.event); }).map(entry => entry.event);
const isTimelineOpen = this._isTimelineOpen; r.preparation = await this._roomEncryption.prepareDecryptAll(events, null, source, inboundSessionTxn);
r.preparation = await this._roomEncryption.prepareDecryptAll(events, null, source, isTimelineOpen, inboundSessionTxn);
if (r.cancelled) return; if (r.cancelled) return;
const changes = await r.preparation.decrypt(); const changes = await r.preparation.decrypt();
r.preparation = null; r.preparation = null;
if (r.cancelled) return; if (r.cancelled) return;
const stores = [this._storage.storeNames.groupSessionDecryptions]; const stores = [this._storage.storeNames.groupSessionDecryptions];
const isTimelineOpen = this._isTimelineOpen;
if (isTimelineOpen) { if (isTimelineOpen) {
// read to fetch devices if timeline is open // read to fetch devices if timeline is open
stores.push(this._storage.storeNames.deviceIdentities); stores.push(this._storage.storeNames.deviceIdentities);
@ -162,6 +162,9 @@ export class Room extends EventEmitter {
let decryption; let decryption;
try { try {
decryption = await changes.write(writeTxn); decryption = await changes.write(writeTxn);
if (isTimelineOpen) {
await decryption.verifySenders(writeTxn);
}
} catch (err) { } catch (err) {
writeTxn.abort(); writeTxn.abort();
throw err; throw err;
@ -210,7 +213,7 @@ export class Room extends EventEmitter {
return event?.type === EVENT_ENCRYPTED_TYPE; return event?.type === EVENT_ENCRYPTED_TYPE;
}); });
decryptPreparation = await roomEncryption.prepareDecryptAll( decryptPreparation = await roomEncryption.prepareDecryptAll(
eventsToDecrypt, newKeys, DecryptionSource.Sync, this._isTimelineOpen, txn); eventsToDecrypt, newKeys, DecryptionSource.Sync, txn);
} }
} }
@ -240,6 +243,9 @@ export class Room extends EventEmitter {
await log.wrap("syncWriter", log => this._syncWriter.writeSync(roomResponse, txn, log), log.level.Detail); await log.wrap("syncWriter", log => this._syncWriter.writeSync(roomResponse, txn, log), log.level.Detail);
if (decryptChanges) { if (decryptChanges) {
const decryption = await decryptChanges.write(txn); const decryption = await decryptChanges.write(txn);
if (this._isTimelineOpen) {
await decryption.verifySenders(txn);
}
if (retryEntries?.length) { if (retryEntries?.length) {
// TODO: this will modify existing timeline entries (which we should not do in writeSync), // TODO: this will modify existing timeline entries (which we should not do in writeSync),
// but it is a temporary way of reattempting decryption while timeline is open // but it is a temporary way of reattempting decryption while timeline is open