BayernMessenger/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/EnsureOlmSessionsForUsersAc...

64 lines
2.5 KiB
Kotlin

/*
* Copyright 2019 New Vector Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package im.vector.matrix.android.internal.crypto.actions
import android.text.TextUtils
import im.vector.matrix.android.internal.crypto.MXOlmDevice
import im.vector.matrix.android.internal.crypto.model.MXDeviceInfo
import im.vector.matrix.android.internal.crypto.model.MXOlmSessionResult
import im.vector.matrix.android.internal.crypto.model.MXUsersDevicesMap
import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
import timber.log.Timber
import java.util.*
import javax.inject.Inject
internal class EnsureOlmSessionsForUsersAction @Inject constructor(private val olmDevice: MXOlmDevice,
private val cryptoStore: IMXCryptoStore,
private val ensureOlmSessionsForDevicesAction: EnsureOlmSessionsForDevicesAction) {
/**
* Try to make sure we have established olm sessions for the given users.
* @param users a list of user ids.
*/
suspend fun handle(users: List<String>) : MXUsersDevicesMap<MXOlmSessionResult> {
Timber.v("## ensureOlmSessionsForUsers() : ensureOlmSessionsForUsers $users")
val devicesByUser = HashMap<String /* userId */, MutableList<MXDeviceInfo>>()
for (userId in users) {
devicesByUser[userId] = ArrayList()
val devices = cryptoStore.getUserDevices(userId)?.values ?: emptyList()
for (device in devices) {
val key = device.identityKey()
if (TextUtils.equals(key, olmDevice.deviceCurve25519Key)) {
// Don't bother setting up session to ourself
continue
}
if (device.isVerified) {
// Don't bother setting up sessions with blocked users
continue
}
devicesByUser[userId]!!.add(device)
}
}
return ensureOlmSessionsForDevicesAction.handle(devicesByUser)
}
}