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Fix simultaneous session request bug

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This commit is contained in:
nielsandriesse 2020-05-22 10:41:31 +10:00
parent 06883cc3ef
commit f015339fc5
5 changed files with 40 additions and 8 deletions
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1
src/org/thoughtcrime/securesms/ApplicationContext.java
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@ -567,6 +567,7 @@ public class ApplicationContext extends MultiDexApplication implements Dependenc
@Override
public void sendSessionRequest(@NotNull String publicKey) {
DatabaseFactory.getLokiAPIDatabase(this).setSessionRequestTimestamp(publicKey, new Date().getTime());
EphemeralMessage sessionRequest = EphemeralMessage.createSessionRequest(publicKey);
jobManager.add(new PushEphemeralMessageSendJob(sessionRequest));
}

12
src/org/thoughtcrime/securesms/database/helpers/SQLCipherOpenHelper.java
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@ -35,11 +35,11 @@ import org.thoughtcrime.securesms.database.StickerDatabase;
import org.thoughtcrime.securesms.database.ThreadDatabase;
import org.thoughtcrime.securesms.jobs.RefreshPreKeysJob;
import org.thoughtcrime.securesms.logging.Log;
import org.thoughtcrime.securesms.loki.database.LokiMessageDatabase;
import org.thoughtcrime.securesms.loki.database.LokiThreadDatabase;
import org.thoughtcrime.securesms.loki.database.LokiAPIDatabase;
import org.thoughtcrime.securesms.loki.database.LokiMessageDatabase;
import org.thoughtcrime.securesms.loki.database.LokiPreKeyBundleDatabase;
import org.thoughtcrime.securesms.loki.database.LokiPreKeyRecordDatabase;
import org.thoughtcrime.securesms.loki.database.LokiThreadDatabase;
import org.thoughtcrime.securesms.loki.database.LokiUserDatabase;
import org.thoughtcrime.securesms.notifications.NotificationChannels;
import org.thoughtcrime.securesms.service.KeyCachingService;
@ -81,8 +81,9 @@ public class SQLCipherOpenHelper extends SQLiteOpenHelper {
private static final int lokiV5 = 26;
private static final int lokiV6 = 27;
private static final int lokiV7 = 28;
private static final int lokiV8 = 29;
private static final int DATABASE_VERSION = lokiV7; // Loki - onUpgrade(...) must be updated to use Loki version numbers if Signal makes any database changes
private static final int DATABASE_VERSION = lokiV8; // Loki - onUpgrade(...) must be updated to use Loki version numbers if Signal makes any database changes
private static final String DATABASE_NAME = "signal.db";
private final Context context;
@ -138,6 +139,7 @@ public class SQLCipherOpenHelper extends SQLiteOpenHelper {
db.execSQL(LokiAPIDatabase.getCreateLastDeletionServerIDTableCommand());
db.execSQL(LokiAPIDatabase.getCreateDeviceLinkTableCommand());
db.execSQL(LokiAPIDatabase.getCreateUserCountTableCommand());
db.execSQL(LokiAPIDatabase.getCreateSessionRequestTimestampTableCommand());
db.execSQL(LokiPreKeyBundleDatabase.getCreateTableCommand());
db.execSQL(LokiPreKeyRecordDatabase.getCreateTableCommand());
db.execSQL(LokiMessageDatabase.getCreateMessageFriendRequestTableCommand());
@ -576,6 +578,10 @@ public class SQLCipherOpenHelper extends SQLiteOpenHelper {
db.execSQL(LokiMessageDatabase.getCreateErrorMessageTableCommand());
}
if (oldVersion < lokiV8) {
db.execSQL(LokiAPIDatabase.getCreateSessionRequestTimestampTableCommand());
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();

28
src/org/thoughtcrime/securesms/loki/database/LokiAPIDatabase.kt
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@ -32,10 +32,10 @@ class LokiAPIDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(
private val receivedMessageHashValues = "received_message_hash_values"
@JvmStatic val createReceivedMessageHashValuesTableCommand = "CREATE TABLE $receivedMessageHashValuesCache ($userID TEXT PRIMARY KEY, $receivedMessageHashValues TEXT);"
// Group chat auth token cache
private val groupChatAuthTokenTable = "loki_api_group_chat_auth_token_database"
private val groupChatAuthTokenCache = "loki_api_group_chat_auth_token_database"
private val server = "server"
private val token = "token"
@JvmStatic val createGroupChatAuthTokenTableCommand = "CREATE TABLE $groupChatAuthTokenTable ($server TEXT PRIMARY KEY, $token TEXT);"
@JvmStatic val createGroupChatAuthTokenTableCommand = "CREATE TABLE $groupChatAuthTokenCache ($server TEXT PRIMARY KEY, $token TEXT);"
// Last message server ID cache
private val lastMessageServerIDCache = "loki_api_last_message_server_id_cache"
private val lastMessageServerIDCacheIndex = "loki_api_last_message_server_id_cache_index"
@ -59,6 +59,11 @@ class LokiAPIDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(
private val publicChatID = "public_chat_id"
private val userCount = "user_count"
@JvmStatic val createUserCountTableCommand = "CREATE TABLE $userCountCache ($publicChatID STRING PRIMARY KEY, $userCount INTEGER DEFAULT 0);"
// Session request timestamp cache
private val sessionRequestTimestampCache = "session_request_timestamp_cache"
private val publicKey = "public_key"
private val timestamp = "timestamp"
@JvmStatic val createSessionRequestTimestampTableCommand = "CREATE TABLE $sessionRequestTimestampCache ($publicKey STRING PRIMARY KEY, $timestamp INTEGER DEFAULT 0);"
}
override fun getSwarmCache(hexEncodedPublicKey: String): Set<LokiAPITarget>? {
@ -120,7 +125,7 @@ class LokiAPIDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(
override fun getAuthToken(server: String): String? {
val database = databaseHelper.readableDatabase
return database.get(groupChatAuthTokenTable, "${Companion.server} = ?", wrap(server)) { cursor ->
return database.get(groupChatAuthTokenCache, "${Companion.server} = ?", wrap(server)) { cursor ->
cursor.getString(cursor.getColumnIndexOrThrow(token))
}
}
@ -129,9 +134,9 @@ class LokiAPIDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(
val database = databaseHelper.writableDatabase
if (newValue != null) {
val row = wrap(mapOf(Companion.server to server, token to newValue))
database.insertOrUpdate(groupChatAuthTokenTable, row, "${Companion.server} = ?", wrap(server))
database.insertOrUpdate(groupChatAuthTokenCache, row, "${Companion.server} = ?", wrap(server))
} else {
database.delete(groupChatAuthTokenTable, "${Companion.server} = ?", wrap(server))
database.delete(groupChatAuthTokenCache, "${Companion.server} = ?", wrap(server))
}
}
@ -222,6 +227,19 @@ class LokiAPIDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(
val row = wrap(mapOf(publicChatID to index, Companion.userCount to userCount.toString()))
database.insertOrUpdate(userCountCache, row, "$publicChatID = ?", wrap(index))
}
fun getSessionRequestTimestamp(publicKey: String): Long? {
val database = databaseHelper.readableDatabase
return database.get(sessionRequestTimestampCache, "$LokiAPIDatabase.publicKey = ?", wrap(publicKey)) { cursor ->
cursor.getInt(LokiAPIDatabase.timestamp)
}?.toLong()
}
fun setSessionRequestTimestamp(publicKey: String, timestamp: Long) {
val database = databaseHelper.writableDatabase
val row = wrap(mapOf(LokiAPIDatabase.publicKey to publicKey, LokiAPIDatabase.timestamp to timestamp.toString()))
database.insertOrUpdate(sessionRequestTimestampCache, row, "${LokiAPIDatabase.publicKey} = ?", wrap(publicKey))
}
}
// region Convenience

2
src/org/thoughtcrime/securesms/loki/protocol/ClosedGroupsProtocol.kt
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@ -15,6 +15,7 @@ import org.whispersystems.signalservice.api.messages.SignalServiceContent
import org.whispersystems.signalservice.api.messages.SignalServiceGroup
import org.whispersystems.signalservice.api.push.SignalServiceAddress
import org.whispersystems.signalservice.loki.protocol.multidevice.MultiDeviceProtocol
import java.util.*
object ClosedGroupsProtocol {
@ -96,6 +97,7 @@ object ClosedGroupsProtocol {
val deviceAsAddress = SignalProtocolAddress(device, SignalServiceAddress.DEFAULT_DEVICE_ID)
val hasSession = TextSecureSessionStore(context).containsSession(deviceAsAddress)
if (hasSession) { continue }
DatabaseFactory.getLokiAPIDatabase(context).setSessionRequestTimestamp(device, Date().time)
val sessionRequest = EphemeralMessage.createSessionRequest(device)
ApplicationContext.getInstance(context).jobManager.add(PushEphemeralMessageSendJob(sessionRequest))
}

5
src/org/thoughtcrime/securesms/loki/protocol/SessionManagementProtocol.kt
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@ -76,6 +76,11 @@ object SessionManagementProtocol {
@JvmStatic
fun handleSessionRequestIfNeeded(context: Context, content: SignalServiceContent) {
if (!content.dataMessage.isPresent || !content.dataMessage.get().isSessionRequest) { return }
val sentSessionRequestTimestamp = DatabaseFactory.getLokiAPIDatabase(context).getSessionRequestTimestamp(content.sender)
if (sentSessionRequestTimestamp != null && content.timestamp < sentSessionRequestTimestamp) {
// We sent a session request after this one was sent
return
}
// Auto-accept all session requests
val ephemeralMessage = EphemeralMessage.create(content.sender)
ApplicationContext.getInstance(context).jobManager.add(PushEphemeralMessageSendJob(ephemeralMessage))