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Merge pull request from vector-im/feature/bca/crypto_olm_faster_decrypt

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olm try to decrypt with recent session first
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Benoit Marty 2022-04-29 11:49:22 +02:00 • committed by GitHub
commit cbc29d0699
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3 changed files with 4 additions and 1 deletions
changelog.d
5872.misc
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto
OlmSessionStore.kt
store/db
RealmCryptoStore.kt

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changelog.d/5872.misc Normal file
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@ -0,0 +1 @@
Faster Olm decrypt when there is a lot of existing sessions

3
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/OlmSessionStore.kt
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@ -66,7 +66,8 @@ internal class OlmSessionStore @Inject constructor(private val store: IMXCryptoS
olmSessions.getOrPut(deviceKey) { mutableListOf() }.forEach { cached -> olmSessions.getOrPut(deviceKey) { mutableListOf() }.forEach { cached ->
getSafeSessionIdentifier(cached.olmSession)?.let { cachedSessionId -> getSafeSessionIdentifier(cached.olmSession)?.let { cachedSessionId ->
if (!persistedKnownSessions.contains(cachedSessionId)) { if (!persistedKnownSessions.contains(cachedSessionId)) {
persistedKnownSessions.add(cachedSessionId) // as it's in cache put in on top
persistedKnownSessions.add(0, cachedSessionId)
} }
} }
} }

1
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/store/db/RealmCryptoStore.kt
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@ -715,6 +715,7 @@ internal class RealmCryptoStore @Inject constructor(
return doWithRealm(realmConfiguration) { return doWithRealm(realmConfiguration) {
it.where<OlmSessionEntity>() it.where<OlmSessionEntity>()
.equalTo(OlmSessionEntityFields.DEVICE_KEY, deviceKey) .equalTo(OlmSessionEntityFields.DEVICE_KEY, deviceKey)
.sort(OlmSessionEntityFields.LAST_RECEIVED_MESSAGE_TS, Sort.DESCENDING)
.findAll() .findAll()
.mapNotNull { sessionEntity -> .mapNotNull { sessionEntity ->
sessionEntity.sessionId sessionEntity.sessionId