fluffychat/lib/utils/sqflite_store.dart

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/*
* Copyright (c) 2019 Zender & Kurtz GbR.
*
* Authors:
* Christian Pauly <krille@famedly.com>
* Marcel Radzio <mtrnord@famedly.com>
*
* This file is part of famedlysdk_store_sqflite.
*
* famedlysdk_store_sqflite is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* famedlysdk_store_sqflite is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with famedlysdk_store_sqflite. If not, see <http://www.gnu.org/licenses/>.
*/
library famedlysdk_store_sqflite;
import 'dart:async';
import 'dart:convert';
import 'dart:core';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:path/path.dart' as p;
import 'package:sqflite/sqflite.dart';
/// Responsible to store all data persistent and to query objects from the
/// database.
class Store extends StoreAPI {
final Client client;
Store(this.client) {
_init();
}
Database _db;
/// SQLite database for all persistent data. It is recommended to extend this
/// SDK instead of writing direct queries to the database.
//Database get db => _db;
_init() async {
var databasePath = await getDatabasesPath();
String path = p.join(databasePath, "FluffyMatrix.db");
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_db = await openDatabase(path, version: 15,
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onCreate: (Database db, int version) async {
await createTables(db);
}, onUpgrade: (Database db, int oldVersion, int newVersion) async {
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print("[Store] Migrate databse from version $oldVersion to $newVersion");
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if (oldVersion != newVersion) {
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schemes.forEach((String name, String scheme) async {
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if (name != "Clients") await db.execute("DROP TABLE IF EXISTS $name");
});
await createTables(db);
await db.rawUpdate("UPDATE Clients SET prev_batch='' WHERE client=?",
[client.clientName]);
}
});
await _db.rawUpdate("UPDATE Events SET status=-1 WHERE status=0");
List<Map> list = await _db
.rawQuery("SELECT * FROM Clients WHERE client=?", [client.clientName]);
if (list.length == 1) {
var clientList = list[0];
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print("[Store] Previous batch: '${clientList["prev_batch"].toString()}'");
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client.connect(
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newToken: clientList["token"],
newHomeserver: clientList["homeserver"],
newUserID: clientList["matrix_id"],
newDeviceID: clientList["device_id"],
newDeviceName: clientList["device_name"],
newLazyLoadMembers: clientList["lazy_load_members"] == 1,
newMatrixVersions: clientList["matrix_versions"].toString().split(","),
newPrevBatch: clientList["prev_batch"].toString().isEmpty
? null
: clientList["prev_batch"],
);
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if (client.debug) {
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print("[Store] Restore client credentials of ${client.userID}");
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}
} else {
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client.onLoginStateChanged.add(LoginState.loggedOut);
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}
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}
Future<void> createTables(Database db) async {
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schemes.forEach((String name, String scheme) async {
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await db.execute(scheme);
});
}
Future<String> queryPrevBatch() async {
List<Map> list = await txn.rawQuery(
"SELECT prev_batch FROM Clients WHERE client=?", [client.clientName]);
return list[0]["prev_batch"];
}
/// Will be automatically called when the client is logged in successfully.
Future<void> storeClient() async {
await _db
.rawInsert('INSERT OR IGNORE INTO Clients VALUES(?,?,?,?,?,?,?,?,?)', [
client.clientName,
client.accessToken,
client.homeserver,
client.userID,
client.deviceID,
client.deviceName,
client.prevBatch,
client.matrixVersions.join(","),
client.lazyLoadMembers,
]);
return;
}
/// Clears all tables from the database.
Future<void> clear() async {
await _db
.rawDelete("DELETE FROM Clients WHERE client=?", [client.clientName]);
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schemes.forEach((String name, String scheme) async {
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if (name != "Clients") await _db.rawDelete("DELETE FROM $name");
});
return;
}
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Future<void> transaction(Function queries) async {
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return _db.transaction((txnObj) async {
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txn = txnObj.batch();
queries();
await txn.commit(noResult: true);
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});
}
/// Will be automatically called on every synchronisation. Must be called inside of
// /// [transaction].
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void storePrevBatch(String prevBatch) {
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txn.rawUpdate("UPDATE Clients SET prev_batch=? WHERE client=?",
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[prevBatch, client.clientName]);
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}
Future<void> storeRoomPrevBatch(Room room) async {
await _db.rawUpdate("UPDATE Rooms SET prev_batch=? WHERE room_id=?",
[room.prev_batch, room.id]);
return null;
}
/// Stores a RoomUpdate object in the database. Must be called inside of
/// [transaction].
Future<void> storeRoomUpdate(RoomUpdate roomUpdate) {
if (txn == null) return null;
// Insert the chat into the database if not exists
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if (roomUpdate.membership != Membership.leave) {
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txn.rawInsert(
"INSERT OR IGNORE INTO Rooms " + "VALUES(?, ?, 0, 0, '', 0, 0, '') ",
[roomUpdate.id, roomUpdate.membership.toString().split('.').last]);
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} else {
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txn.rawDelete("DELETE FROM Rooms WHERE room_id=? ", [roomUpdate.id]);
return null;
}
// Update the notification counts and the limited timeline boolean and the summary
String updateQuery =
"UPDATE Rooms SET highlight_count=?, notification_count=?, membership=?";
List<dynamic> updateArgs = [
roomUpdate.highlight_count,
roomUpdate.notification_count,
roomUpdate.membership.toString().split('.').last
];
if (roomUpdate.summary?.mJoinedMemberCount != null) {
updateQuery += ", joined_member_count=?";
updateArgs.add(roomUpdate.summary.mJoinedMemberCount);
}
if (roomUpdate.summary?.mInvitedMemberCount != null) {
updateQuery += ", invited_member_count=?";
updateArgs.add(roomUpdate.summary.mInvitedMemberCount);
}
if (roomUpdate.summary?.mHeroes != null) {
updateQuery += ", heroes=?";
updateArgs.add(roomUpdate.summary.mHeroes.join(","));
}
updateQuery += " WHERE room_id=?";
updateArgs.add(roomUpdate.id);
txn.rawUpdate(updateQuery, updateArgs);
// Is the timeline limited? Then all previous messages should be
// removed from the database!
if (roomUpdate.limitedTimeline) {
txn.rawDelete("DELETE FROM Events WHERE room_id=?", [roomUpdate.id]);
txn.rawUpdate("UPDATE Rooms SET prev_batch=? WHERE room_id=?",
[roomUpdate.prev_batch, roomUpdate.id]);
}
return null;
}
/// Stores an UserUpdate object in the database. Must be called inside of
/// [transaction].
Future<void> storeUserEventUpdate(UserUpdate userUpdate) {
if (txn == null) return null;
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if (userUpdate.type == "account_data") {
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txn.rawInsert("INSERT OR REPLACE INTO AccountData VALUES(?, ?)", [
userUpdate.eventType,
json.encode(userUpdate.content["content"]),
]);
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} else if (userUpdate.type == "presence") {
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txn.rawInsert("INSERT OR REPLACE INTO Presences VALUES(?, ?, ?)", [
userUpdate.eventType,
userUpdate.content["sender"],
json.encode(userUpdate.content["content"]),
]);
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}
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return null;
}
Future<dynamic> redactMessage(EventUpdate eventUpdate) async {
List<Map<String, dynamic>> res = await _db.rawQuery(
"SELECT * FROM Events WHERE event_id=?",
[eventUpdate.content["redacts"]]);
if (res.length == 1) {
Event event = Event.fromJson(res[0], null);
event.setRedactionEvent(Event.fromJson(eventUpdate.content, null));
final int changes1 = await _db.rawUpdate(
"UPDATE Events SET unsigned=?, content=?, prev_content=? WHERE event_id=?",
[
json.encode(event.unsigned ?? ""),
json.encode(event.content ?? ""),
json.encode(event.prevContent ?? ""),
event.eventId,
],
);
final int changes2 = await _db.rawUpdate(
"UPDATE RoomStates SET unsigned=?, content=?, prev_content=? WHERE event_id=?",
[
json.encode(event.unsigned ?? ""),
json.encode(event.content ?? ""),
json.encode(event.prevContent ?? ""),
event.eventId,
],
);
if (changes1 == 1 && changes2 == 1) return true;
}
return false;
}
/// Stores an EventUpdate object in the database. Must be called inside of
/// [transaction].
Future<void> storeEventUpdate(EventUpdate eventUpdate) {
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if (txn == null || eventUpdate.type == "ephemeral") return null;
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Map<String, dynamic> eventContent = eventUpdate.content;
String type = eventUpdate.type;
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String chatId = eventUpdate.roomID;
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// Get the state_key for m.room.member events
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String stateKey = "";
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if (eventContent["state_key"] is String) {
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stateKey = eventContent["state_key"];
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}
if (eventUpdate.eventType == "m.room.redaction") {
redactMessage(eventUpdate);
}
if (type == "timeline" || type == "history") {
// calculate the status
num status = 2;
if (eventContent["status"] is num) status = eventContent["status"];
// Save the event in the database
if ((status == 1 || status == -1) &&
eventContent["unsigned"] is Map<String, dynamic> &&
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eventContent["unsigned"]["transaction_id"] is String) {
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txn.rawUpdate(
"UPDATE Events SET status=?, event_id=? WHERE event_id=?", [
status,
eventContent["event_id"],
eventContent["unsigned"]["transaction_id"]
]);
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} else {
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txn.rawInsert(
"INSERT OR REPLACE INTO Events VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
[
eventContent["event_id"],
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chatId,
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eventContent["origin_server_ts"],
eventContent["sender"],
eventContent["type"],
json.encode(eventContent["unsigned"] ?? ""),
json.encode(eventContent["content"]),
json.encode(eventContent["prevContent"]),
eventContent["state_key"],
status
]);
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}
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// Is there a transaction id? Then delete the event with this id.
if (status != -1 &&
eventUpdate.content.containsKey("unsigned") &&
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eventUpdate.content["unsigned"]["transaction_id"] is String) {
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txn.rawDelete("DELETE FROM Events WHERE event_id=?",
[eventUpdate.content["unsigned"]["transaction_id"]]);
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}
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}
if (type == "history") return null;
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if (type != "account_data" && eventUpdate.content["event_id"] != null ||
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eventUpdate.content["state_key"] != null) {
final String now = DateTime.now().millisecondsSinceEpoch.toString();
txn.rawInsert(
"INSERT OR REPLACE INTO RoomStates VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?)",
[
eventContent["event_id"] ?? now,
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chatId,
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eventContent["origin_server_ts"] ?? now,
eventContent["sender"],
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stateKey,
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json.encode(eventContent["unsigned"] ?? ""),
json.encode(eventContent["prev_content"] ?? ""),
eventContent["type"],
json.encode(eventContent["content"]),
]);
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} else if (type == "account_data") {
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txn.rawInsert("INSERT OR REPLACE INTO RoomAccountData VALUES(?, ?, ?)", [
eventContent["type"],
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chatId,
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json.encode(eventContent["content"]),
]);
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}
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return null;
}
/// Returns a User object by a given Matrix ID and a Room.
Future<User> getUser({String matrixID, Room room}) async {
List<Map<String, dynamic>> res = await _db.rawQuery(
"SELECT * FROM RoomStates WHERE state_key=? AND room_id=?",
[matrixID, room.id]);
if (res.length != 1) return null;
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return Event.fromJson(res[0], room).asUser;
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}
/// Loads all Users in the database to provide a contact list
/// except users who are in the Room with the ID [exceptRoomID].
Future<List<User>> loadContacts({String exceptRoomID = ""}) async {
List<Map<String, dynamic>> res = await _db.rawQuery(
"SELECT * FROM RoomStates WHERE state_key LIKE '@%:%' AND state_key!=? AND room_id!=? GROUP BY state_key ORDER BY state_key",
[client.userID, exceptRoomID]);
List<User> userList = [];
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for (int i = 0; i < res.length; i++) {
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userList.add(Event.fromJson(res[i], Room(id: "", client: client)).asUser);
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}
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return userList;
}
/// Returns all users of a room by a given [roomID].
Future<List<User>> loadParticipants(Room room) async {
List<Map<String, dynamic>> res = await _db.rawQuery(
"SELECT * " +
" FROM RoomStates " +
" WHERE room_id=? " +
" AND type='m.room.member'",
[room.id]);
List<User> participants = [];
for (num i = 0; i < res.length; i++) {
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participants.add(Event.fromJson(res[i], room).asUser);
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}
return participants;
}
/// Returns a list of events for the given room and sets all participants.
Future<List<Event>> getEventList(Room room) async {
List<Map<String, dynamic>> eventRes = await _db.rawQuery(
"SELECT * " +
" FROM Events " +
" WHERE room_id=?" +
" GROUP BY event_id " +
" ORDER BY origin_server_ts DESC",
[room.id]);
List<Event> eventList = [];
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for (num i = 0; i < eventRes.length; i++) {
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eventList.add(Event.fromJson(eventRes[i], room));
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}
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return eventList;
}
/// Returns all rooms, the client is participating. Excludes left rooms.
Future<List<Room>> getRoomList({bool onlyLeft = false}) async {
List<Map<String, dynamic>> res = await _db.rawQuery("SELECT * " +
" FROM Rooms" +
" WHERE membership" +
(onlyLeft ? "=" : "!=") +
"'leave' " +
" GROUP BY room_id ");
List<Room> roomList = [];
for (num i = 0; i < res.length; i++) {
Room room = await Room.getRoomFromTableRow(
res[i],
client,
states: getStatesFromRoomId(res[i]["room_id"]),
roomAccountData: getAccountDataFromRoomId(res[i]["room_id"]),
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);
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roomList.add(room);
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}
return roomList;
}
/// Returns a room without events and participants.
@deprecated
Future<Room> getRoomById(String id) async {
List<Map<String, dynamic>> res =
await _db.rawQuery("SELECT * FROM Rooms WHERE room_id=?", [id]);
if (res.length != 1) return null;
return Room.getRoomFromTableRow(res[0], client,
roomAccountData: getAccountDataFromRoomId(id),
states: getStatesFromRoomId(id));
}
Future<List<Map<String, dynamic>>> getStatesFromRoomId(String id) async {
return _db.rawQuery("SELECT * FROM RoomStates WHERE room_id=?", [id]);
}
Future<List<Map<String, dynamic>>> getAccountDataFromRoomId(String id) async {
return _db.rawQuery("SELECT * FROM RoomAccountData WHERE room_id=?", [id]);
}
Future<void> resetNotificationCount(String roomID) async {
await _db.rawDelete(
"UPDATE Rooms SET notification_count=0, highlight_count=0 WHERE room_id=?",
[roomID]);
return;
}
Future<void> forgetRoom(String roomID) async {
await _db.rawDelete("DELETE FROM Rooms WHERE room_id=?", [roomID]);
return;
}
/// Searches for the event in the store.
Future<Event> getEventById(String eventID, Room room) async {
List<Map<String, dynamic>> res = await _db.rawQuery(
"SELECT * FROM Events WHERE event_id=? AND room_id=?",
[eventID, room.id]);
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if (res.isEmpty) return null;
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return Event.fromJson(res[0], room);
}
Future<Map<String, AccountData>> getAccountData() async {
Map<String, AccountData> newAccountData = {};
List<Map<String, dynamic>> rawAccountData =
await _db.rawQuery("SELECT * FROM AccountData");
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for (int i = 0; i < rawAccountData.length; i++) {
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newAccountData[rawAccountData[i]["type"]] =
AccountData.fromJson(rawAccountData[i]);
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}
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return newAccountData;
}
Future<Map<String, Presence>> getPresences() async {
Map<String, Presence> newPresences = {};
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List<Map<String, dynamic>> rawPresences =
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await _db.rawQuery("SELECT * FROM Presences");
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for (int i = 0; i < rawPresences.length; i++) {
Map<String, dynamic> rawPresence = {
"sender": rawPresences[i]["sender"],
"content": json.decode(rawPresences[i]["content"]),
};
newPresences[rawPresences[i]["type"]] = Presence.fromJson(rawPresence);
}
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return newPresences;
}
Future removeEvent(String eventId) async {
assert(eventId != "");
await _db.rawDelete("DELETE FROM Events WHERE event_id=?", [eventId]);
return;
}
Future forgetNotification(String roomID) async {
assert(roomID != "");
await _db
.rawDelete("DELETE FROM NotificationsCache WHERE chat_id=?", [roomID]);
return;
}
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Future addNotification(String roomID, String eventId, int uniqueID) async {
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assert(roomID != "");
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assert(eventId != "");
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await _db.rawInsert(
"INSERT OR REPLACE INTO NotificationsCache(id, chat_id, event_id) VALUES (?, ?, ?)",
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[uniqueID, roomID, eventId]);
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// Make sure we got the same unique ID everywhere
await _db.rawUpdate("UPDATE NotificationsCache SET id=? WHERE chat_id=?",
[uniqueID, roomID]);
return;
}
Future<List<Map<String, dynamic>>> getNotificationByRoom(
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String roomId) async {
assert(roomId != "");
List<Map<String, dynamic>> res = await _db
.rawQuery("SELECT * FROM NotificationsCache WHERE chat_id=?", [roomId]);
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if (res.isEmpty) return null;
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return res;
}
static final Map<String, String> schemes = {
/// The database scheme for the Client class.
"Clients": 'CREATE TABLE IF NOT EXISTS Clients(' +
'client TEXT PRIMARY KEY, ' +
'token TEXT, ' +
'homeserver TEXT, ' +
'matrix_id TEXT, ' +
'device_id TEXT, ' +
'device_name TEXT, ' +
'prev_batch TEXT, ' +
'matrix_versions TEXT, ' +
'lazy_load_members INTEGER, ' +
'UNIQUE(client))',
/// The database scheme for the Room class.
'Rooms': 'CREATE TABLE IF NOT EXISTS Rooms(' +
'room_id TEXT PRIMARY KEY, ' +
'membership TEXT, ' +
'highlight_count INTEGER, ' +
'notification_count INTEGER, ' +
'prev_batch TEXT, ' +
'joined_member_count INTEGER, ' +
'invited_member_count INTEGER, ' +
'heroes TEXT, ' +
'UNIQUE(room_id))',
/// The database scheme for the TimelineEvent class.
'Events': 'CREATE TABLE IF NOT EXISTS Events(' +
'event_id TEXT PRIMARY KEY, ' +
'room_id TEXT, ' +
'origin_server_ts INTEGER, ' +
'sender TEXT, ' +
'type TEXT, ' +
'unsigned TEXT, ' +
'content TEXT, ' +
'prev_content TEXT, ' +
'state_key TEXT, ' +
"status INTEGER, " +
'UNIQUE(event_id))',
/// The database scheme for room states.
'RoomStates': 'CREATE TABLE IF NOT EXISTS RoomStates(' +
'event_id TEXT PRIMARY KEY, ' +
'room_id TEXT, ' +
'origin_server_ts INTEGER, ' +
'sender TEXT, ' +
'state_key TEXT, ' +
'unsigned TEXT, ' +
'prev_content TEXT, ' +
'type TEXT, ' +
'content TEXT, ' +
'UNIQUE(room_id,state_key,type))',
/// The database scheme for room states.
'AccountData': 'CREATE TABLE IF NOT EXISTS AccountData(' +
'type TEXT PRIMARY KEY, ' +
'content TEXT, ' +
'UNIQUE(type))',
/// The database scheme for room states.
'RoomAccountData': 'CREATE TABLE IF NOT EXISTS RoomAccountData(' +
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'type TEXT, ' +
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'room_id TEXT, ' +
'content TEXT, ' +
'UNIQUE(type,room_id))',
/// The database scheme for room states.
'Presences': 'CREATE TABLE IF NOT EXISTS Presences(' +
'type TEXT PRIMARY KEY, ' +
'sender TEXT, ' +
'content TEXT, ' +
'UNIQUE(sender))',
/// The database scheme for the NotificationsCache class.
"NotificationsCache": 'CREATE TABLE IF NOT EXISTS NotificationsCache(' +
'id int, ' +
'chat_id TEXT, ' + // The chat id
'event_id TEXT, ' + // The matrix id of the Event
'UNIQUE(event_id))',
};
}