Browse Source
* Replace SessionData DataStore with an encrypted SQLite DB. --------- Co-authored-by: Benoit Marty <benoit@matrix.org>misc/jme/add-logging-to-state-machine
Jorge Martin Espinosa
2 years ago
committed by
GitHub
38 changed files with 600 additions and 199 deletions
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/* |
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* Copyright (c) 2023 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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plugins { |
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id("io.element.android-library") |
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} |
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android { |
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namespace = "io.element.android.libraries.encrypteddb" |
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} |
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dependencies { |
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implementation(libs.sqldelight.driver.android) |
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implementation(libs.sqlcipher) |
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implementation(libs.sqlite) |
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implementation(libs.androidx.security.crypto) |
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} |
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/* |
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* Copyright (c) 2023 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package io.element.encrypteddb |
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import android.content.Context |
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import com.squareup.sqldelight.android.AndroidSqliteDriver |
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import com.squareup.sqldelight.db.SqlDriver |
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import io.element.encrypteddb.passphrase.PassphraseProvider |
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import net.sqlcipher.database.SupportFactory |
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/** |
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* Creates an encrypted version of the [SqlDriver] using SQLCipher's [SupportFactory]. |
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* @param passphraseProvider Provides the passphrase needed to use the SQLite database with SQLCipher. |
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*/ |
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class SqlCipherDriverFactory( |
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private val passphraseProvider: PassphraseProvider, |
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) { |
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/** |
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* Returns a valid [SqlDriver] with SQLCipher support. |
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* @param schema The SQLite DB schema. |
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* @param name The name of the database to create. |
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* @param context Android [Context], used to instantiate the driver. |
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*/ |
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fun create(schema: SqlDriver.Schema, name: String, context: Context): SqlDriver { |
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val passphrase = passphraseProvider.getPassphrase() |
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val factory = SupportFactory(passphrase) |
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return AndroidSqliteDriver(schema = schema, context = context, name = name, factory = factory) |
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} |
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} |
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/* |
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* Copyright (c) 2023 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package io.element.encrypteddb.passphrase |
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import android.content.Context |
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import androidx.security.crypto.EncryptedFile |
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import java.io.File |
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import java.security.SecureRandom |
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/** |
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* Provides a secure passphrase for SQLCipher by generating a random secret and storing it into an [EncryptedFile]. |
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* @param context Android [Context], used by [EncryptedFile] for cryptographic operations. |
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* @param file Destination file where the key will be stored. |
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* @param alias Alias of the key used to encrypt & decrypt the [EncryptedFile]'s contents. |
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* @param secretSize Length of the generated secret. |
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*/ |
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class RandomSecretPassphraseProvider( |
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private val context: Context, |
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private val file: File, |
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private val alias: String, |
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private val secretSize: Int = 256, |
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) : PassphraseProvider { |
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override fun getPassphrase(): ByteArray { |
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val encryptedFile = EncryptedFile.Builder( |
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file, |
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context, |
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alias, |
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EncryptedFile.FileEncryptionScheme.AES256_GCM_HKDF_4KB |
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).build() |
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return if (!file.exists()) { |
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val secret = generateSecret() |
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encryptedFile.openFileOutput().use { it.write(secret) } |
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secret |
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} else { |
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encryptedFile.openFileInput().use { it.readBytes() } |
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} |
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} |
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private fun generateSecret(): ByteArray { |
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val buffer = ByteArray(size = secretSize) |
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SecureRandom().nextBytes(buffer) |
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return buffer |
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} |
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} |
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@ -1,109 +0,0 @@ |
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/* |
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* Copyright (c) 2022 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package io.element.android.libraries.matrix.session |
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import android.content.Context |
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import androidx.datastore.core.DataStore |
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import androidx.datastore.preferences.core.Preferences |
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import androidx.datastore.preferences.core.edit |
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import androidx.datastore.preferences.core.stringPreferencesKey |
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import androidx.datastore.preferences.preferencesDataStore |
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import com.squareup.anvil.annotations.ContributesBinding |
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import io.element.android.libraries.di.AppScope |
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import io.element.android.libraries.di.ApplicationContext |
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import io.element.android.libraries.di.SingleIn |
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import io.element.android.libraries.matrix.core.SessionId |
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import kotlinx.coroutines.flow.Flow |
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import kotlinx.coroutines.flow.firstOrNull |
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import kotlinx.coroutines.flow.map |
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import kotlinx.serialization.Serializable |
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import kotlinx.serialization.decodeFromString |
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import kotlinx.serialization.encodeToString |
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import kotlinx.serialization.json.Json |
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import org.matrix.rustcomponents.sdk.Session |
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import javax.inject.Inject |
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private val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "elementx_sessions") |
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// TODO It contains the access token, so it has to be stored in a more secured storage. |
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private val sessionKey = stringPreferencesKey("session") |
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@SingleIn(AppScope::class) |
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@ContributesBinding(AppScope::class) |
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class PreferencesSessionStore @Inject constructor( |
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@ApplicationContext context: Context |
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) : SessionStore { |
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@Serializable |
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data class SessionData( |
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val accessToken: String, |
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val deviceId: String, |
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val homeserverUrl: String, |
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val isSoftLogout: Boolean, |
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val refreshToken: String?, |
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val userId: String, |
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val slidingSyncProxy: String? |
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) |
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private val store = context.dataStore |
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override fun isLoggedIn(): Flow<Boolean> { |
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return store.data.map { prefs -> |
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prefs[sessionKey] != null |
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} |
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} |
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override suspend fun storeData(session: Session) { |
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store.edit { prefs -> |
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val sessionData = SessionData( |
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accessToken = session.accessToken, |
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deviceId = session.deviceId, |
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homeserverUrl = session.homeserverUrl, |
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isSoftLogout = session.isSoftLogout, |
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refreshToken = session.refreshToken, |
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userId = session.userId, |
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slidingSyncProxy = session.slidingSyncProxy |
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) |
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val encodedSession = Json.encodeToString(sessionData) |
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prefs[sessionKey] = encodedSession |
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} |
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} |
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override suspend fun getLatestSession(): Session? { |
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return store.data.firstOrNull()?.let { prefs -> |
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val encodedSession = prefs[sessionKey] ?: return@let null |
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val sessionData = Json.decodeFromString<SessionData>(encodedSession) |
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Session( |
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accessToken = sessionData.accessToken, |
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deviceId = sessionData.deviceId, |
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homeserverUrl = sessionData.homeserverUrl, |
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isSoftLogout = sessionData.isSoftLogout, |
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refreshToken = sessionData.refreshToken, |
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userId = sessionData.userId, |
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slidingSyncProxy = sessionData.slidingSyncProxy |
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) |
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} |
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} |
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override suspend fun getSession(sessionId: SessionId): Session? { |
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//TODO we should have a proper session management |
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return getLatestSession() |
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} |
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override suspend fun reset() { |
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store.edit { it.clear() } |
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} |
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} |
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/* |
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* Copyright (c) 2023 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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plugins { |
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id("io.element.android-library") |
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alias(libs.plugins.anvil) |
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alias(libs.plugins.sqldelight) |
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} |
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android { |
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namespace = "io.element.android.libraries.sessionstorage" |
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} |
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anvil { |
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generateDaggerFactories.set(true) |
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} |
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dependencies { |
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implementation(libs.dagger) |
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implementation(projects.libraries.core) |
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implementation(projects.libraries.encryptedDb) |
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implementation(libs.sqldelight.driver.android) |
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implementation(libs.sqlcipher) |
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implementation(libs.sqlite) |
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implementation(libs.androidx.security.crypto) |
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implementation(projects.libraries.di) |
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implementation(libs.sqldelight.coroutines) |
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testImplementation(libs.test.junit) |
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testImplementation(libs.test.truth) |
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testImplementation(libs.test.turbine) |
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testImplementation(libs.coroutines.test) |
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testImplementation(libs.sqldelight.driver.jvm) |
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} |
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sqldelight { |
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database("SessionDatabase") {} |
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} |
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/* |
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* Copyright (c) 2023 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package io.element.android.libraries.sessionstorage |
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import com.squareup.anvil.annotations.ContributesBinding |
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import com.squareup.sqldelight.runtime.coroutines.asFlow |
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import com.squareup.sqldelight.runtime.coroutines.mapToOneOrNull |
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import io.element.android.libraries.di.AppScope |
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import io.element.android.libraries.di.SingleIn |
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import io.element.android.libraries.matrix.session.SessionData |
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import kotlinx.coroutines.flow.Flow |
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import kotlinx.coroutines.flow.map |
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import javax.inject.Inject |
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@SingleIn(AppScope::class) |
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@ContributesBinding(AppScope::class) |
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class DatabaseSessionStore @Inject constructor( |
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private val database: SessionDatabase, |
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) : SessionStore { |
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override fun isLoggedIn(): Flow<Boolean> { |
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return database.sessionDataQueries.selectFirst().asFlow().mapToOneOrNull().map { it != null } |
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} |
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override suspend fun storeData(sessionData: SessionData) { |
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database.sessionDataQueries.insertSessionData(sessionData) |
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} |
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override suspend fun getLatestSession(): SessionData? { |
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return database.sessionDataQueries.selectFirst() |
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.executeAsOneOrNull() |
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} |
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override suspend fun getSession(sessionId: String): SessionData? { |
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return database.sessionDataQueries.selectByUserId(sessionId) |
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.executeAsOneOrNull() |
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} |
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override suspend fun removeSession(sessionId: String) { |
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database.sessionDataQueries.removeSession(sessionId) |
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} |
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} |
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@ -0,0 +1,43 @@ |
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/* |
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* Copyright (c) 2023 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package io.element.android.libraries.sessionstorage.di |
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import android.content.Context |
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import com.squareup.anvil.annotations.ContributesTo |
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import dagger.Module |
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import dagger.Provides |
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import io.element.android.libraries.di.AppScope |
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import io.element.android.libraries.di.ApplicationContext |
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import io.element.android.libraries.di.SingleIn |
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import io.element.android.libraries.sessionstorage.SessionDatabase |
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import io.element.encrypteddb.SqlCipherDriverFactory |
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import io.element.encrypteddb.passphrase.RandomSecretPassphraseProvider |
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@Module |
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@ContributesTo(AppScope::class) |
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object SessionStorageModule { |
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@Provides |
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@SingleIn(AppScope::class) |
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fun provideMatrixDatabase(@ApplicationContext context: Context): SessionDatabase { |
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val name = "session_database" |
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val secretFile = context.getDatabasePath("$name.key") |
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val passphraseProvider = RandomSecretPassphraseProvider(context, secretFile, name) |
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val driver = SqlCipherDriverFactory(passphraseProvider) |
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.create(SessionDatabase.Schema, "$name.db", context) |
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return SessionDatabase(driver) |
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} |
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} |
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@ -0,0 +1,21 @@ |
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CREATE TABLE SessionData ( |
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userId TEXT NOT NULL PRIMARY KEY, |
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deviceId TEXT NOT NULL, |
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accessToken TEXT NOT NULL, |
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refreshToken TEXT, |
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homeserverUrl TEXT NOT NULL, |
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isSoftLogout INTEGER AS Boolean NOT NULL DEFAULT 0, |
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slidingSyncProxy TEXT |
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); |
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selectFirst: |
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SELECT * FROM SessionData LIMIT 1; |
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selectByUserId: |
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SELECT * FROM SessionData WHERE userId = ?; |
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insertSessionData: |
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INSERT INTO SessionData(userId, deviceId, accessToken, refreshToken, homeserverUrl, isSoftLogout, slidingSyncProxy) VALUES ?; |
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removeSession: |
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DELETE FROM SessionData WHERE userId = ?; |
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@ -0,0 +1,112 @@ |
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/* |
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* Copyright (c) 2023 New Vector Ltd |
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|
* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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|
* you may not use this file except in compliance with the License. |
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|
* You may obtain a copy of the License at |
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|
* |
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|
* 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 io.element.android.libraries.sessionstorage |
||||||
|
|
||||||
|
import app.cash.turbine.test |
||||||
|
import com.google.common.truth.Truth.assertThat |
||||||
|
import com.squareup.sqldelight.sqlite.driver.JdbcSqliteDriver |
||||||
|
import io.element.android.libraries.matrix.session.SessionData |
||||||
|
import kotlinx.coroutines.ExperimentalCoroutinesApi |
||||||
|
import kotlinx.coroutines.test.runTest |
||||||
|
import org.junit.Before |
||||||
|
import org.junit.Test |
||||||
|
|
||||||
|
@OptIn(ExperimentalCoroutinesApi::class) |
||||||
|
class DatabaseSessionStoreTests { |
||||||
|
|
||||||
|
private lateinit var database: SessionDatabase |
||||||
|
private lateinit var databaseSessionStore: DatabaseSessionStore |
||||||
|
|
||||||
|
private val aSessionData = SessionData( |
||||||
|
userId = "userId", |
||||||
|
deviceId = "deviceId", |
||||||
|
accessToken = "accessToken", |
||||||
|
refreshToken = "refreshToken", |
||||||
|
homeserverUrl = "homeserverUrl", |
||||||
|
isSoftLogout = false, |
||||||
|
slidingSyncProxy = null |
||||||
|
) |
||||||
|
|
||||||
|
@Before |
||||||
|
fun setup() { |
||||||
|
// Initialise in memory SQLite driver |
||||||
|
val driver = JdbcSqliteDriver(JdbcSqliteDriver.IN_MEMORY) |
||||||
|
SessionDatabase.Schema.create(driver) |
||||||
|
|
||||||
|
database = SessionDatabase(driver) |
||||||
|
databaseSessionStore = DatabaseSessionStore(database) |
||||||
|
} |
||||||
|
|
||||||
|
@Test |
||||||
|
fun `storeData persists the SessionData into the DB`() = runTest { |
||||||
|
assertThat(database.sessionDataQueries.selectFirst().executeAsOneOrNull()).isNull() |
||||||
|
|
||||||
|
databaseSessionStore.storeData(aSessionData) |
||||||
|
|
||||||
|
assertThat(database.sessionDataQueries.selectFirst().executeAsOneOrNull()).isEqualTo(aSessionData) |
||||||
|
} |
||||||
|
|
||||||
|
@Test |
||||||
|
fun `isLoggedIn emits true while there are sessions in the DB`() = runTest { |
||||||
|
databaseSessionStore.isLoggedIn().test { |
||||||
|
assertThat(awaitItem()).isFalse() |
||||||
|
database.sessionDataQueries.insertSessionData(aSessionData) |
||||||
|
assertThat(awaitItem()).isTrue() |
||||||
|
database.sessionDataQueries.removeSession(aSessionData.userId) |
||||||
|
assertThat(awaitItem()).isFalse() |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
@Test |
||||||
|
fun `getLatestSession gets the first session in the DB`() = runTest { |
||||||
|
database.sessionDataQueries.insertSessionData(aSessionData) |
||||||
|
database.sessionDataQueries.insertSessionData(aSessionData.copy(userId = "otherUserId")) |
||||||
|
|
||||||
|
val latestSession = databaseSessionStore.getLatestSession() |
||||||
|
|
||||||
|
assertThat(latestSession).isEqualTo(aSessionData) |
||||||
|
} |
||||||
|
|
||||||
|
@Test |
||||||
|
fun `getSession returns a matching session in DB if exists`() = runTest { |
||||||
|
database.sessionDataQueries.insertSessionData(aSessionData) |
||||||
|
database.sessionDataQueries.insertSessionData(aSessionData.copy(userId = "otherUserId")) |
||||||
|
|
||||||
|
val foundSession = databaseSessionStore.getSession(aSessionData.userId) |
||||||
|
|
||||||
|
assertThat(foundSession).isEqualTo(aSessionData) |
||||||
|
} |
||||||
|
|
||||||
|
@Test |
||||||
|
fun `getSession returns null if a no matching session exists in DB`() = runTest { |
||||||
|
database.sessionDataQueries.insertSessionData(aSessionData.copy(userId = "otherUserId")) |
||||||
|
|
||||||
|
val foundSession = databaseSessionStore.getSession(aSessionData.userId) |
||||||
|
|
||||||
|
assertThat(foundSession).isNull() |
||||||
|
} |
||||||
|
|
||||||
|
@Test |
||||||
|
fun `removeSession removes the associated session in DB`() = runTest { |
||||||
|
database.sessionDataQueries.insertSessionData(aSessionData) |
||||||
|
|
||||||
|
databaseSessionStore.removeSession(aSessionData.userId) |
||||||
|
|
||||||
|
assertThat(database.sessionDataQueries.selectByUserId(aSessionData.userId).executeAsOneOrNull()).isNull() |
||||||
|
} |
||||||
|
|
||||||
|
} |
||||||
@ -0,0 +1,50 @@ |
|||||||
|
/* |
||||||
|
* Copyright (c) 2023 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 io.element.android.samples.minimal |
||||||
|
|
||||||
|
import io.element.android.libraries.matrix.session.SessionData |
||||||
|
import io.element.android.libraries.sessionstorage.SessionStore |
||||||
|
import kotlinx.coroutines.flow.Flow |
||||||
|
import kotlinx.coroutines.flow.MutableStateFlow |
||||||
|
import kotlinx.coroutines.flow.map |
||||||
|
|
||||||
|
class InMemorySessionStore : SessionStore { |
||||||
|
|
||||||
|
private var sessionData = MutableStateFlow<SessionData?>(null) |
||||||
|
|
||||||
|
override fun isLoggedIn(): Flow<Boolean> { |
||||||
|
return sessionData.map { it != null } |
||||||
|
} |
||||||
|
|
||||||
|
override suspend fun storeData(session: SessionData) { |
||||||
|
sessionData.value = session |
||||||
|
} |
||||||
|
|
||||||
|
override suspend fun getSession(sessionId: String): SessionData? { |
||||||
|
return sessionData.value.takeIf { it?.userId == sessionId } |
||||||
|
} |
||||||
|
|
||||||
|
override suspend fun getLatestSession(): SessionData? { |
||||||
|
return sessionData.value |
||||||
|
} |
||||||
|
|
||||||
|
override suspend fun removeSession(sessionId: String) { |
||||||
|
if (sessionData.value?.userId == sessionId) { |
||||||
|
sessionData.value = null |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
@ -0,0 +1,20 @@ |
|||||||
|
<?xml version="1.0" encoding="utf-8"?> |
||||||
|
<!-- |
||||||
|
~ Copyright (c) 2023 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. |
||||||
|
--> |
||||||
|
|
||||||
|
<resources> |
||||||
|
<style name="Theme.ElementX" parent="android:Theme.Material.NoActionBar" /> |
||||||
|
</resources> |
||||||
Loading…
Reference in new issue