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Merge pull request #1133 from vector-im/feature/quick_fix_redecrypt_remote_echo 

Fix Message transitions in encrypted rooms
This commit is contained in:
Valere 2020-03-13 12:18:59 +01:00 committed by GitHub
parent 54eca7525e 7c1428e097
commit 642651a069
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3 changed files with 45 additions and 0 deletions
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19
matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/send/EncryptEventWorker.kt
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@ -23,7 +23,10 @@ import com.squareup.moshi.JsonClass
import im.vector.matrix.android.api.failure.Failure
import im.vector.matrix.android.api.session.crypto.CryptoService
import im.vector.matrix.android.api.session.events.model.Event
import im.vector.matrix.android.api.session.events.model.toContent
import im.vector.matrix.android.api.session.room.send.SendState
import im.vector.matrix.android.internal.crypto.MXCRYPTO_ALGORITHM_MEGOLM
import im.vector.matrix.android.internal.crypto.MXEventDecryptionResult
import im.vector.matrix.android.internal.crypto.model.MXEncryptEventContentResult
import im.vector.matrix.android.internal.util.awaitCallback
import im.vector.matrix.android.internal.worker.SessionWorkerParams
@ -96,6 +99,22 @@ internal class EncryptEventWorker(context: Context, params: WorkerParameters)
type = safeResult.eventType,
content = safeResult.eventContent
)
// Better handling of local echo, to avoid decrypting transition on remote echo
// Should I only do it for text messages?
if (result.eventContent["algorithm"] == MXCRYPTO_ALGORITHM_MEGOLM) {
val decryptionLocalEcho = MXEventDecryptionResult(
clearEvent = Event(
type = localEvent.type,
content = localEvent.content,
roomId = localEvent.roomId
).toContent(),
forwardingCurve25519KeyChain = emptyList(),
senderCurve25519Key = result.eventContent["sender_key"] as? String,
claimedEd25519Key = crypto.getMyDevice().fingerprint()
)
localEchoUpdater.updateEncryptedEcho(localEvent.eventId, safeResult.eventContent, decryptionLocalEcho)
}
val nextWorkerParams = SendEventWorker.Params(params.sessionId, encryptedEvent)
return Result.success(WorkerParamsFactory.toData(nextWorkerParams))
} else {

15
matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/send/LocalEchoUpdater.kt
View File

@ -17,7 +17,11 @@
package im.vector.matrix.android.internal.session.room.send
import com.zhuinden.monarchy.Monarchy
import im.vector.matrix.android.api.session.events.model.Content
import im.vector.matrix.android.api.session.events.model.EventType
import im.vector.matrix.android.api.session.room.send.SendState
import im.vector.matrix.android.internal.crypto.MXEventDecryptionResult
import im.vector.matrix.android.internal.database.mapper.ContentMapper
import im.vector.matrix.android.internal.database.model.EventEntity
import im.vector.matrix.android.internal.database.query.where
import timber.log.Timber
@ -38,4 +42,15 @@ internal class LocalEchoUpdater @Inject constructor(private val monarchy: Monarc
}
}
}
fun updateEncryptedEcho(eventId: String, encryptedContent: Content, mxEventDecryptionResult: MXEventDecryptionResult) {
monarchy.writeAsync { realm ->
val sendingEventEntity = EventEntity.where(realm, eventId).findFirst()
if (sendingEventEntity != null) {
sendingEventEntity.type = EventType.ENCRYPTED
sendingEventEntity.content = ContentMapper.map(encryptedContent)
sendingEventEntity.setDecryptionResult(mxEventDecryptionResult)
}
}
}
}

11
matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomSyncHandler.kt
View File

@ -25,6 +25,8 @@ import im.vector.matrix.android.api.session.room.model.RoomMemberContent
import im.vector.matrix.android.api.session.room.model.tag.RoomTagContent
import im.vector.matrix.android.api.session.room.send.SendState
import im.vector.matrix.android.internal.crypto.DefaultCryptoService
import im.vector.matrix.android.internal.crypto.MXCRYPTO_ALGORITHM_MEGOLM
import im.vector.matrix.android.internal.crypto.algorithms.olm.OlmDecryptionResult
import im.vector.matrix.android.internal.database.helper.addOrUpdate
import im.vector.matrix.android.internal.database.helper.addTimelineEvent
import im.vector.matrix.android.internal.database.mapper.ContentMapper
@ -38,6 +40,7 @@ import im.vector.matrix.android.internal.database.query.findLastLiveChunkFromRoo
import im.vector.matrix.android.internal.database.query.getOrCreate
import im.vector.matrix.android.internal.database.query.getOrNull
import im.vector.matrix.android.internal.database.query.where
import im.vector.matrix.android.internal.di.MoshiProvider
import im.vector.matrix.android.internal.session.DefaultInitialSyncProgressService
import im.vector.matrix.android.internal.session.mapWithProgress
import im.vector.matrix.android.internal.session.room.RoomSummaryUpdater
@ -260,6 +263,14 @@ internal class RoomSyncHandler @Inject constructor(private val readReceiptHandle
if (sendingEventEntity != null) {
Timber.v("Remove local echo for tx:$it")
roomEntity.sendingTimelineEvents.remove(sendingEventEntity)
if (event.isEncrypted() && event.content?.get("algorithm") as? String == MXCRYPTO_ALGORITHM_MEGOLM) {
// updated with echo decryption, to avoid seeing it decrypt again
val adapter = MoshiProvider.providesMoshi().adapter<OlmDecryptionResult>(OlmDecryptionResult::class.java)
sendingEventEntity.root?.decryptionResultJson?.let { json ->
eventEntity.decryptionResultJson = json
event.mxDecryptionResult = adapter.fromJson(json)
}
}
} else {
Timber.v("Can't find corresponding local echo for tx:$it")
}