KeysBackup: Avoid using `!!`, should fix #2262
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Benoit Marty
Benoit Marty
parent
0bcf42dbb8
commit
fca0aa2cc4
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@ -21,6 +21,7 @@ Improvements 🙌:
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Bugfix 🐛:
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- Messages encrypted with no way to decrypt after SDK update from 0.18 to 1.0.0 (#2252)
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- Search Result | scroll jumps after pagination (#2238)
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- KeysBackup: Avoid using `!!` (#2262)
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Translations 🗣:
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-
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@ -257,14 +257,14 @@ class KeysBackupTest : InstrumentedTest {
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// - Check encryptGroupSession() returns stg
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val keyBackupData = keysBackup.encryptGroupSession(session)
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assertNotNull(keyBackupData)
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assertNotNull(keyBackupData.sessionData)
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assertNotNull(keyBackupData!!.sessionData)
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// - Check pkDecryptionFromRecoveryKey() is able to create a OlmPkDecryption
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val decryption = keysBackup.pkDecryptionFromRecoveryKey(keyBackupCreationInfo.recoveryKey)
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assertNotNull(decryption)
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// - Check decryptKeyBackupData() returns stg
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val sessionData = keysBackup
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.decryptKeyBackupData(keyBackupData,
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.decryptKeyBackupData(keyBackupData!!,
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session.olmInboundGroupSession!!.sessionIdentifier(),
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cryptoTestData.roomId,
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decryption!!)
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@ -1212,22 +1212,19 @@ internal class DefaultKeysBackupService @Inject constructor(
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// Gather data to send to the homeserver
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// roomId -> sessionId -> MXKeyBackupData
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val keysBackupData = KeysBackupData(
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roomIdToRoomKeysBackupData = HashMap()
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)
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val keysBackupData = KeysBackupData()
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for (olmInboundGroupSessionWrapper in olmInboundGroupSessionWrappers) {
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val keyBackupData = encryptGroupSession(olmInboundGroupSessionWrapper)
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if (keysBackupData.roomIdToRoomKeysBackupData[olmInboundGroupSessionWrapper.roomId] == null) {
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val roomKeysBackupData = RoomKeysBackupData(
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sessionIdToKeyBackupData = HashMap()
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)
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keysBackupData.roomIdToRoomKeysBackupData[olmInboundGroupSessionWrapper.roomId!!] = roomKeysBackupData
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}
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olmInboundGroupSessionWrappers.forEach { olmInboundGroupSessionWrapper ->
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val roomId = olmInboundGroupSessionWrapper.roomId ?: return@forEach
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val olmInboundGroupSession = olmInboundGroupSessionWrapper.olmInboundGroupSession ?: return@forEach
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try {
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keysBackupData.roomIdToRoomKeysBackupData[olmInboundGroupSessionWrapper.roomId]!!
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.sessionIdToKeyBackupData[olmInboundGroupSessionWrapper.olmInboundGroupSession!!.sessionIdentifier()] = keyBackupData
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encryptGroupSession(olmInboundGroupSessionWrapper)
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?.let {
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keysBackupData.roomIdToRoomKeysBackupData
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.getOrPut(roomId) { RoomKeysBackupData() }
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.sessionIdToKeyBackupData[olmInboundGroupSession.sessionIdentifier()] = it
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}
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} catch (e: OlmException) {
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Timber.e(e, "OlmException")
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}
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@ -1235,71 +1232,71 @@ internal class DefaultKeysBackupService @Inject constructor(
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Timber.v("backupKeys: 4 - Sending request")
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val sendingRequestCallback = object : MatrixCallback<BackupKeysResult> {
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override fun onSuccess(data: BackupKeysResult) {
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uiHandler.post {
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Timber.v("backupKeys: 5a - Request complete")
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// Make the request
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val version = keysBackupVersion?.version ?: return@withContext
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// Mark keys as backed up
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cryptoStore.markBackupDoneForInboundGroupSessions(olmInboundGroupSessionWrappers)
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storeSessionDataTask
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.configureWith(StoreSessionsDataTask.Params(version, keysBackupData)) {
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this.callback = object : MatrixCallback<BackupKeysResult> {
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override fun onSuccess(data: BackupKeysResult) {
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uiHandler.post {
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Timber.v("backupKeys: 5a - Request complete")
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if (olmInboundGroupSessionWrappers.size < KEY_BACKUP_SEND_KEYS_MAX_COUNT) {
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Timber.v("backupKeys: All keys have been backed up")
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onServerDataRetrieved(data.count, data.hash)
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// Mark keys as backed up
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cryptoStore.markBackupDoneForInboundGroupSessions(olmInboundGroupSessionWrappers)
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// Note: Changing state will trigger the call to backupAllGroupSessionsCallback.onSuccess()
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keysBackupStateManager.state = KeysBackupState.ReadyToBackUp
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} else {
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Timber.v("backupKeys: Continue to back up keys")
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keysBackupStateManager.state = KeysBackupState.WillBackUp
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if (olmInboundGroupSessionWrappers.size < KEY_BACKUP_SEND_KEYS_MAX_COUNT) {
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Timber.v("backupKeys: All keys have been backed up")
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onServerDataRetrieved(data.count, data.hash)
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backupKeys()
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}
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}
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}
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// Note: Changing state will trigger the call to backupAllGroupSessionsCallback.onSuccess()
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keysBackupStateManager.state = KeysBackupState.ReadyToBackUp
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} else {
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Timber.v("backupKeys: Continue to back up keys")
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keysBackupStateManager.state = KeysBackupState.WillBackUp
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override fun onFailure(failure: Throwable) {
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if (failure is Failure.ServerError) {
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uiHandler.post {
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Timber.e(failure, "backupKeys: backupKeys failed.")
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when (failure.error.code) {
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MatrixError.M_NOT_FOUND,
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MatrixError.M_WRONG_ROOM_KEYS_VERSION -> {
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// Backup has been deleted on the server, or we are not using the last backup version
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keysBackupStateManager.state = KeysBackupState.WrongBackUpVersion
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backupAllGroupSessionsCallback?.onFailure(failure)
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resetBackupAllGroupSessionsListeners()
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resetKeysBackupData()
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keysBackupVersion = null
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// Do not stay in KeysBackupState.WrongBackUpVersion but check what is available on the homeserver
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checkAndStartKeysBackup()
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backupKeys()
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}
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}
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}
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override fun onFailure(failure: Throwable) {
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if (failure is Failure.ServerError) {
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uiHandler.post {
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Timber.e(failure, "backupKeys: backupKeys failed.")
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when (failure.error.code) {
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MatrixError.M_NOT_FOUND,
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MatrixError.M_WRONG_ROOM_KEYS_VERSION -> {
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// Backup has been deleted on the server, or we are not using the last backup version
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keysBackupStateManager.state = KeysBackupState.WrongBackUpVersion
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backupAllGroupSessionsCallback?.onFailure(failure)
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resetBackupAllGroupSessionsListeners()
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resetKeysBackupData()
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keysBackupVersion = null
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// Do not stay in KeysBackupState.WrongBackUpVersion but check what is available on the homeserver
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checkAndStartKeysBackup()
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}
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else ->
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// Come back to the ready state so that we will retry on the next received key
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keysBackupStateManager.state = KeysBackupState.ReadyToBackUp
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}
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}
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} else {
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uiHandler.post {
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backupAllGroupSessionsCallback?.onFailure(failure)
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resetBackupAllGroupSessionsListeners()
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Timber.e("backupKeys: backupKeys failed.")
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// Retry a bit later
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keysBackupStateManager.state = KeysBackupState.ReadyToBackUp
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maybeBackupKeys()
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}
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}
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else ->
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// Come back to the ready state so that we will retry on the next received key
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keysBackupStateManager.state = KeysBackupState.ReadyToBackUp
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}
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}
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} else {
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uiHandler.post {
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backupAllGroupSessionsCallback?.onFailure(failure)
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resetBackupAllGroupSessionsListeners()
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Timber.e("backupKeys: backupKeys failed.")
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// Retry a bit later
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keysBackupStateManager.state = KeysBackupState.ReadyToBackUp
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maybeBackupKeys()
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}
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}
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}
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}
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// Make the request
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storeSessionDataTask
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.configureWith(StoreSessionsDataTask.Params(keysBackupVersion!!.version, keysBackupData)) {
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this.callback = sendingRequestCallback
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}
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.executeBy(taskExecutor)
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}
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@ -1308,46 +1305,45 @@ internal class DefaultKeysBackupService @Inject constructor(
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@VisibleForTesting
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@WorkerThread
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fun encryptGroupSession(olmInboundGroupSessionWrapper: OlmInboundGroupSessionWrapper2): KeyBackupData {
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fun encryptGroupSession(olmInboundGroupSessionWrapper: OlmInboundGroupSessionWrapper2): KeyBackupData? {
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// Gather information for each key
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val device = cryptoStore.deviceWithIdentityKey(olmInboundGroupSessionWrapper.senderKey!!)
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val device = olmInboundGroupSessionWrapper.senderKey?.let { cryptoStore.deviceWithIdentityKey(it) }
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// Build the m.megolm_backup.v1.curve25519-aes-sha2 data as defined at
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// https://github.com/uhoreg/matrix-doc/blob/e2e_backup/proposals/1219-storing-megolm-keys-serverside.md#mmegolm_backupv1curve25519-aes-sha2-key-format
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val sessionData = olmInboundGroupSessionWrapper.exportKeys()
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val sessionData = olmInboundGroupSessionWrapper.exportKeys() ?: return null
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val sessionBackupData = mapOf(
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"algorithm" to sessionData!!.algorithm,
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"algorithm" to sessionData.algorithm,
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"sender_key" to sessionData.senderKey,
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"sender_claimed_keys" to sessionData.senderClaimedKeys,
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"forwarding_curve25519_key_chain" to (sessionData.forwardingCurve25519KeyChain.orEmpty()),
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"session_key" to sessionData.sessionKey)
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var encryptedSessionBackupData: OlmPkMessage? = null
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val json = MoshiProvider.providesMoshi()
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.adapter(Map::class.java)
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.toJson(sessionBackupData)
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val moshi = MoshiProvider.providesMoshi()
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val adapter = moshi.adapter(Map::class.java)
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try {
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val json = adapter.toJson(sessionBackupData)
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encryptedSessionBackupData = backupOlmPkEncryption?.encrypt(json)
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val encryptedSessionBackupData = try {
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backupOlmPkEncryption?.encrypt(json)
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} catch (e: OlmException) {
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Timber.e(e, "OlmException")
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null
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}
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?: return null
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// Build backup data for that key
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return KeyBackupData(
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firstMessageIndex = try {
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olmInboundGroupSessionWrapper.olmInboundGroupSession!!.firstKnownIndex
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olmInboundGroupSessionWrapper.olmInboundGroupSession?.firstKnownIndex ?: 0
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} catch (e: OlmException) {
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Timber.e(e, "OlmException")
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0L
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},
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forwardedCount = olmInboundGroupSessionWrapper.forwardingCurve25519KeyChain!!.size,
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forwardedCount = olmInboundGroupSessionWrapper.forwardingCurve25519KeyChain.orEmpty().size,
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isVerified = device?.isVerified == true,
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sessionData = mapOf(
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"ciphertext" to encryptedSessionBackupData!!.mCipherText,
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"ciphertext" to encryptedSessionBackupData.mCipherText,
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"mac" to encryptedSessionBackupData.mMac,
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"ephemeral" to encryptedSessionBackupData.mEphemeralKey)
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)
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