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crypto: Notify the rest of the code about received room keys

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This commit is contained in:
Damir Jelić 2021-04-14 12:16:46 +02:00
parent 3ba29b4ea9
commit 2805772d0a
1 changed files with 47 additions and 4 deletions
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51
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/DefaultCryptoService.kt
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@ -68,9 +68,11 @@ import org.matrix.android.sdk.internal.crypto.model.ImportRoomKeysResult
import org.matrix.android.sdk.internal.crypto.model.MXDeviceInfo
import org.matrix.android.sdk.internal.crypto.model.MXEncryptEventContentResult
import org.matrix.android.sdk.internal.crypto.model.MXUsersDevicesMap
import org.matrix.android.sdk.internal.crypto.model.event.RoomKeyContent
import org.matrix.android.sdk.internal.crypto.model.event.RoomKeyWithHeldContent
import org.matrix.android.sdk.internal.crypto.model.rest.DeviceInfo
import org.matrix.android.sdk.internal.crypto.model.rest.DevicesListResponse
import org.matrix.android.sdk.internal.crypto.model.rest.ForwardedRoomKeyContent
import org.matrix.android.sdk.internal.crypto.model.rest.KeysUploadResponse
import org.matrix.android.sdk.internal.crypto.model.rest.KeysClaimResponse
import org.matrix.android.sdk.internal.crypto.model.rest.KeysQueryResponse
@ -161,6 +163,9 @@ internal class DefaultCryptoService @Inject constructor(
private val outgointRequestsLock: Mutex = Mutex()
private val roomKeyShareLocks: ConcurrentHashMap<String, Mutex> = ConcurrentHashMap()
// TODO does this need to be concurrent?
private val newSessionListeners = ArrayList<NewSessionListener>()
suspend fun onStateEvent(roomId: String, event: Event) {
when (event.getClearType()) {
EventType.STATE_ROOM_ENCRYPTION -> onRoomEncryptionEvent(roomId, event)
@ -643,11 +648,50 @@ internal class DefaultCryptoService @Inject constructor(
}
}
private fun notifyRoomKeyReceival(
roomId: String,
sessionId: String,
) {
// The sender key is actually unused since it's unimportant for megolm
// Our events don't contain the info so pass an empty string until we
// change the listener definition
val senderKey = ""
newSessionListeners.forEach {
try {
it.onNewSession(roomId, senderKey, sessionId)
} catch (e: Throwable) {
}
}
}
suspend fun receiveSyncChanges(
toDevice: ToDeviceSyncResponse?,
deviceChanges: DeviceListResponse?,
keyCounts: DeviceOneTimeKeysCountSyncResponse?) {
olmMachine!!.receiveSyncChanges(toDevice, deviceChanges, keyCounts)
// Decrypt and handle our to-device events
val toDeviceEvents = olmMachine!!.receiveSyncChanges(toDevice, deviceChanges, keyCounts)
// Notify the our listeners about room keys so decryption is retried.
if (toDeviceEvents.events != null) {
for (event in toDeviceEvents.events) {
if (event.type == "m.room_key") {
val content = event.getClearContent().toModel<RoomKeyContent>() ?: continue
val roomId = content.sessionId ?: continue
val sessionId = content.sessionId
notifyRoomKeyReceival(roomId, sessionId)
} else if (event.type == "m.forwarded_room_key") {
val content = event.getClearContent().toModel<ForwardedRoomKeyContent>() ?: continue
val roomId = content.sessionId ?: continue
val sessionId = content.sessionId
notifyRoomKeyReceival(roomId, sessionId)
}
}
}
}
private suspend fun preshareGroupSession(roomId: String, roomMembers: List<String>) {
@ -946,12 +990,11 @@ internal class DefaultCryptoService @Inject constructor(
}
override fun addNewSessionListener(newSessionListener: NewSessionListener) {
// TODO we need to notify the listener when we receive a new inbound
// group session
if (!newSessionListeners.contains(newSessionListener)) newSessionListeners.add(newSessionListener)
}
override fun removeSessionListener(listener: NewSessionListener) {
// TODO
newSessionListeners.remove(listener)
}
/* ==========================================================================================
* DEBUG INFO