Files
letro-ios/ElementX/Sources/Services/Client/ClientProxy.swift
2022-11-21 19:37:13 +03:00

311 lines
11 KiB
Swift

//
// Copyright 2022 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.
//
import Combine
import Foundation
import MatrixRustSDK
import UIKit
private class WeakClientProxyWrapper: ClientDelegate, SlidingSyncObserver {
private weak var clientProxy: ClientProxy?
init(clientProxy: ClientProxy) {
self.clientProxy = clientProxy
}
// MARK: - ClientDelegate
func didReceiveSyncUpdate() { }
func didReceiveAuthError(isSoftLogout: Bool) {
clientProxy?.didReceiveAuthError(isSoftLogout: isSoftLogout)
}
func didUpdateRestoreToken() {
clientProxy?.didUpdateRestoreToken()
}
// MARK: - SlidingSyncDelegate
func didReceiveSyncUpdate(summary: UpdateSummary) {
clientProxy?.didReceiveSlidingSyncUpdate(summary: summary)
}
}
class ClientProxy: ClientProxyProtocol {
/// The maximum number of timeline events required during a sync request.
static let syncLimit: UInt16 = 50
private let client: ClientProtocol
private let backgroundTaskService: BackgroundTaskServiceProtocol
private var sessionVerificationControllerProxy: SessionVerificationControllerProxy?
private let mediaProxy: MediaProxyProtocol
private let clientQueue: DispatchQueue
private var slidingSyncObserverToken: StoppableSpawn?
private var slidingSync: SlidingSync?
var roomSummaryProvider: RoomSummaryProviderProtocol?
deinit {
// These need to be inlined instead of using stopSync()
// as we can't call async methods safely from deinit
client.setDelegate(delegate: nil)
slidingSyncObserverToken?.cancel()
slidingSync?.setObserver(observer: nil)
}
let callbacks = PassthroughSubject<ClientProxyCallback, Never>()
init(client: ClientProtocol,
backgroundTaskService: BackgroundTaskServiceProtocol) async {
self.client = client
self.backgroundTaskService = backgroundTaskService
clientQueue = .init(label: "ClientProxyQueue",
attributes: .concurrent)
mediaProxy = MediaProxy(client: client,
clientQueue: clientQueue)
await Task.dispatch(on: clientQueue) {
do {
let slidingSyncBuilder = try client.slidingSync().homeserver(url: ElementSettings.shared.slidingSyncProxyBaseURLString)
let slidingSyncView = try SlidingSyncViewBuilder()
.timelineLimit(limit: 10)
.requiredState(requiredState: [RequiredState(key: "m.room.avatar", value: ""),
RequiredState(key: "m.room.encryption", value: "")])
.name(name: "HomeScreenView")
.syncMode(mode: .fullSync)
.build()
let slidingSync = try slidingSyncBuilder
.addView(v: slidingSyncView)
.withCommonExtensions()
.build()
self.roomSummaryProvider = RoomSummaryProvider(slidingSyncController: slidingSync,
slidingSyncView: slidingSyncView,
roomMessageFactory: RoomMessageFactory())
self.slidingSync = slidingSync
} catch {
MXLog.error("Failed configuring sliding sync with error: \(error)")
}
}
client.setDelegate(delegate: WeakClientProxyWrapper(clientProxy: self))
}
var userIdentifier: String {
do {
return try client.userId()
} catch {
MXLog.error("Failed retrieving room info with error: \(error)")
return "Unknown user identifier"
}
}
var isSoftLogout: Bool {
client.isSoftLogout()
}
var deviceId: String? {
do {
return try client.deviceId()
} catch {
MXLog.error("Failed retrieving device id with error: \(error)")
return nil
}
}
var homeserver: String {
client.homeserver()
}
var restorationToken: RestorationToken? {
do {
return try RestorationToken(session: client.session())
} catch {
MXLog.error("Failed retrieving restore token with error: \(error)")
return nil
}
}
func startSync() {
guard !client.isSoftLogout() else {
return
}
slidingSync?.setObserver(observer: WeakClientProxyWrapper(clientProxy: self))
slidingSyncObserverToken = slidingSync?.sync()
}
func stopSync() {
client.setDelegate(delegate: nil)
slidingSyncObserverToken?.cancel()
slidingSync?.setObserver(observer: nil)
}
func roomForIdentifier(_ identifier: String) async -> RoomProxyProtocol? {
let (slidingSyncRoom, room) = await Task.dispatch(on: clientQueue) {
self.roomTupleForIdentifier(identifier)
}
guard let slidingSyncRoom, let room else {
return nil
}
return await RoomProxy(slidingSyncRoom: slidingSyncRoom,
room: room,
backgroundTaskService: backgroundTaskService)
}
func loadUserDisplayName() async -> Result<String, ClientProxyError> {
await Task.dispatch(on: clientQueue) {
do {
let displayName = try self.client.displayName()
return .success(displayName)
} catch {
return .failure(.failedRetrievingDisplayName)
}
}
}
func loadUserAvatarURLString() async -> Result<String, ClientProxyError> {
await Task.dispatch(on: clientQueue) {
do {
let avatarURL = try self.client.avatarUrl()
return .success(avatarURL)
} catch {
return .failure(.failedRetrievingAvatarURL)
}
}
}
func accountDataEvent<Content>(type: String) async -> Result<Content?, ClientProxyError> where Content: Decodable {
await Task.dispatch(on: clientQueue) {
.failure(.failedRetrievingAccountData)
}
}
func setAccountData<Content: Encodable>(content: Content, type: String) async -> Result<Void, ClientProxyError> {
await Task.dispatch(on: clientQueue) {
.failure(.failedSettingAccountData)
}
}
func sessionVerificationControllerProxy() async -> Result<SessionVerificationControllerProxyProtocol, ClientProxyError> {
await Task.dispatch(on: clientQueue) {
do {
let sessionVerificationController = try self.client.getSessionVerificationController()
return .success(SessionVerificationControllerProxy(sessionVerificationController: sessionVerificationController))
} catch {
return .failure(.failedRetrievingSessionVerificationController)
}
}
}
func logout() async {
await Task.dispatch(on: clientQueue) {
do {
try self.client.logout()
} catch {
MXLog.error("Failed logging out with error: \(error)")
}
}
}
// swiftlint:disable:next function_parameter_count
func setPusher(pushkey: String,
kind: PusherKind?,
appId: String,
appDisplayName: String,
deviceDisplayName: String,
profileTag: String?,
lang: String,
url: String?,
format: PushFormat?,
defaultPayload: [AnyHashable: Any]?) async throws {
// let defaultPayloadString = jsonString(from: defaultPayload)
// try await Task.dispatch(on: .global()) {
// try self.client.setPusher(pushkey: pushkey,
// kind: kind?.rustValue,
// appId: appId,
// appDisplayName: appDisplayName,
// deviceDisplayName: deviceDisplayName,
// profileTag: profileTag,
// lang: lang,
// url: url,
// format: format?.rustValue,
// defaultPayload: defaultPayloadString)
// }
}
// MARK: Private
private func roomTupleForIdentifier(_ identifier: String) -> (SlidingSyncRoom?, Room?) {
do {
let slidingSyncRoom = try slidingSync?.getRoom(roomId: identifier)
let fullRoom = slidingSyncRoom?.fullRoom()
return (slidingSyncRoom, fullRoom)
} catch {
MXLog.error("Failed retrieving room with identifier: \(identifier)")
return (nil, nil)
}
}
fileprivate func didReceiveAuthError(isSoftLogout: Bool) {
callbacks.send(.receivedAuthError(isSoftLogout: isSoftLogout))
}
fileprivate func didUpdateRestoreToken() {
callbacks.send(.updatedRestoreToken)
}
fileprivate func didReceiveSlidingSyncUpdate(summary: UpdateSummary) {
roomSummaryProvider?.updateRoomsWithIdentifiers(summary.rooms)
callbacks.send(.receivedSyncUpdate)
}
/// Convenience method to get the json string of an Encodable
private func jsonString(from dictionary: [AnyHashable: Any]?) -> String? {
guard let dictionary,
let data = try? JSONSerialization.data(withJSONObject: dictionary,
options: [.fragmentsAllowed]) else {
return nil
}
return String(data: data, encoding: .utf8)
}
}
extension ClientProxy: MediaProxyProtocol {
func mediaSourceForURLString(_ urlString: String) -> MediaSourceProxy {
mediaProxy.mediaSourceForURLString(urlString)
}
func loadMediaContentForSource(_ source: MediaSourceProxy) async throws -> Data {
try await mediaProxy.loadMediaContentForSource(source)
}
func loadMediaThumbnailForSource(_ source: MediaSourceProxy, width: UInt, height: UInt) async throws -> Data {
try await mediaProxy.loadMediaThumbnailForSource(source, width: width, height: height)
}
}