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Persist tracked event ID hash using localStorage

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This commit is contained in:
Luke Barnard 2018-06-15 15:26:53 +01:00
parent 011154396c
commit f08274585e
3 changed files with 45 additions and 4 deletions
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18
src/DecryptionFailureTracker.js
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@ -36,7 +36,7 @@ export default class DecryptionFailureTracker {
failuresToTrack = [];
// Event IDs of failures that were tracked previously
eventTrackedPreviously = {
trackedEventHashMap = {
// [eventIdHash(eventId)]: true
};
@ -59,6 +59,14 @@ export default class DecryptionFailureTracker {
this.trackDecryptionFailure = fn;
}
loadTrackedEventHashMap() {
this.trackedEventHashMap = JSON.parse(localStorage.getItem('mx-decryption-failure-event-id-hashes'));
}
saveTrackedEventHashMap() {
localStorage.setItem('mx-decryption-failure-event-id-hashes', JSON.stringify(this.trackedEventHashMap));
}
eventDecrypted(e) {
if (e.isDecryptionFailure()) {
this.addDecryptionFailureForEvent(e);
@ -122,7 +130,7 @@ export default class DecryptionFailureTracker {
// Only track one failure per event
const dedupedFailuresMap = failuresGivenGrace.reduce(
(result, failure) => {
if (!this.eventTrackedPreviously[eventIdHash(failure.failedEventId)]) {
if (!this.trackedEventHashMap[eventIdHash(failure.failedEventId)]) {
return {...result, [failure.failedEventId]: failure};
} else {
return result;
@ -133,11 +141,13 @@ export default class DecryptionFailureTracker {
const trackedEventIds = Object.keys(dedupedFailuresMap);
this.eventTrackedPreviously = trackedEventIds.reduce(
this.trackedEventHashMap = trackedEventIds.reduce(
(result, eventId) => ({...result, [eventIdHash(eventId)]: true}),
this.eventTrackedPreviously,
this.trackedEventHashMap,
);
this.saveTrackedEventHashMap();
const dedupedFailures = trackedEventIds.map((k) => dedupedFailuresMap[k]);
this.failuresToTrack = [...this.failuresToTrack, ...dedupedFailures];