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catching ensureOlmSessionsForDevicesAction errors during the event decryption flow

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- we currently can't do much but log here as we've asynchronously start the fallback flow, catching the error at least stops a hard crash
This commit is contained in:
Adam Brown 2021-10-12 16:37:40 +01:00
parent 7338982030
commit 256cb7093d
1 changed files with 28 additions and 21 deletions
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49
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/EventDecryptor.kt
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@ -28,6 +28,7 @@ import org.matrix.android.sdk.api.session.events.model.toModel
import org.matrix.android.sdk.internal.crypto.actions.EnsureOlmSessionsForDevicesAction
import org.matrix.android.sdk.internal.crypto.actions.MessageEncrypter
import org.matrix.android.sdk.internal.crypto.model.CryptoDeviceInfo
import org.matrix.android.sdk.internal.crypto.model.MXOlmSessionResult
import org.matrix.android.sdk.internal.crypto.model.MXUsersDevicesMap
import org.matrix.android.sdk.internal.crypto.model.event.OlmEventContent
import org.matrix.android.sdk.internal.crypto.store.IMXCryptoStore
@ -36,7 +37,6 @@ import org.matrix.android.sdk.internal.extensions.foldToCallback
import org.matrix.android.sdk.internal.session.SessionScope
import timber.log.Timber
import javax.inject.Inject
import kotlin.jvm.Throws
@SessionScope
internal class EventDecryptor @Inject constructor(
@ -146,29 +146,36 @@ internal class EventDecryptor @Inject constructor(
// offload this from crypto thread (?)
cryptoCoroutineScope.launch(coroutineDispatchers.computation) {
val ensured = ensureOlmSessionsForDevicesAction.handle(mapOf(senderId to listOf(deviceInfo)), force = true)
runCatching { ensureOlmSessionsForDevicesAction.handle(mapOf(senderId to listOf(deviceInfo)), force = true) }.fold(
onSuccess = { sendDummyToDevice(ensured = it, deviceInfo, senderId) },
onFailure = {
Timber.e("## CRYPTO | markOlmSessionForUnwedging() : failed to ensure device info ${senderId}${deviceInfo.deviceId}")
}
)
}
}
Timber.i("## CRYPTO | markOlmSessionForUnwedging() : ensureOlmSessionsForDevicesAction isEmpty:${ensured.isEmpty}")
private suspend fun sendDummyToDevice(ensured: MXUsersDevicesMap<MXOlmSessionResult>, deviceInfo: CryptoDeviceInfo, senderId: String) {
Timber.i("## CRYPTO | markOlmSessionForUnwedging() : ensureOlmSessionsForDevicesAction isEmpty:${ensured.isEmpty}")
// Now send a blank message on that session so the other side knows about it.
// (The keyshare request is sent in the clear so that won't do)
// We send this first such that, as long as the toDevice messages arrive in the
// same order we sent them, the other end will get this first, set up the new session,
// then get the keyshare request and send the key over this new session (because it
// is the session it has most recently received a message on).
val payloadJson = mapOf<String, Any>("type" to EventType.DUMMY)
// Now send a blank message on that session so the other side knows about it.
// (The keyshare request is sent in the clear so that won't do)
// We send this first such that, as long as the toDevice messages arrive in the
// same order we sent them, the other end will get this first, set up the new session,
// then get the keyshare request and send the key over this new session (because it
// is the session it has most recently received a message on).
val payloadJson = mapOf<String, Any>("type" to EventType.DUMMY)
val encodedPayload = messageEncrypter.encryptMessage(payloadJson, listOf(deviceInfo))
val sendToDeviceMap = MXUsersDevicesMap<Any>()
sendToDeviceMap.setObject(senderId, deviceInfo.deviceId, encodedPayload)
Timber.i("## CRYPTO | markOlmSessionForUnwedging() : sending dummy to $senderId:${deviceInfo.deviceId}")
withContext(coroutineDispatchers.io) {
val sendToDeviceParams = SendToDeviceTask.Params(EventType.ENCRYPTED, sendToDeviceMap)
try {
sendToDeviceTask.execute(sendToDeviceParams)
} catch (failure: Throwable) {
Timber.e(failure, "## CRYPTO | markOlmSessionForUnwedging() : failed to send dummy to $senderId:${deviceInfo.deviceId}")
}
val encodedPayload = messageEncrypter.encryptMessage(payloadJson, listOf(deviceInfo))
val sendToDeviceMap = MXUsersDevicesMap<Any>()
sendToDeviceMap.setObject(senderId, deviceInfo.deviceId, encodedPayload)
Timber.i("## CRYPTO | markOlmSessionForUnwedging() : sending dummy to $senderId:${deviceInfo.deviceId}")
withContext(coroutineDispatchers.io) {
val sendToDeviceParams = SendToDeviceTask.Params(EventType.ENCRYPTED, sendToDeviceMap)
try {
sendToDeviceTask.execute(sendToDeviceParams)
} catch (failure: Throwable) {
Timber.e(failure, "## CRYPTO | markOlmSessionForUnwedging() : failed to send dummy to $senderId:${deviceInfo.deviceId}")
}
}
}