element-x-ios/ElementX/Sources/Services/Notification/Proxy/NotificationItemProxy.swift

324 lines
12 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 CryptoKit
import Foundation
import UserNotifications
import MatrixRustSDK
protocol NotificationItemProxyProtocol {
var event: TimelineEventProxyProtocol { get }
var roomID: String { get }
var receiverID: String { get }
var senderDisplayName: String? { get }
var senderAvatarMediaSource: MediaSourceProxy? { get }
var roomDisplayName: String { get }
var roomAvatarMediaSource: MediaSourceProxy? { get }
var isNoisy: Bool { get }
var isDirect: Bool { get }
var isEncrypted: Bool { get }
}
extension NotificationItemProxyProtocol {
var id: String? {
let identifiers = receiverID + roomID + event.eventID
guard let data = identifiers.data(using: .utf8) else {
return nil
}
let digest = SHA256.hash(data: data)
return digest.compactMap { String(format: "%02x", $0) }.joined()
}
}
struct NotificationItemProxy: NotificationItemProxyProtocol {
let notificationItem: NotificationItem
let receiverID: String
var event: TimelineEventProxyProtocol {
TimelineEventProxy(timelineEvent: notificationItem.event)
}
var roomID: String {
notificationItem.roomId
}
var senderDisplayName: String? {
notificationItem.senderDisplayName
}
var roomDisplayName: String {
notificationItem.roomDisplayName
}
var isNoisy: Bool {
notificationItem.isNoisy
}
var isDirect: Bool {
notificationItem.isDirect
}
var isEncrypted: Bool {
notificationItem.isEncrypted
}
var senderAvatarMediaSource: MediaSourceProxy? {
if let senderAvatarURLString = notificationItem.senderAvatarUrl,
let senderAvatarURL = URL(string: senderAvatarURLString) {
return MediaSourceProxy(url: senderAvatarURL, mimeType: nil)
}
return nil
}
var roomAvatarMediaSource: MediaSourceProxy? {
if let roomAvatarURLString = notificationItem.roomAvatarUrl,
let roomAvatarURL = URL(string: roomAvatarURLString) {
return MediaSourceProxy(url: roomAvatarURL, mimeType: nil)
}
return nil
}
}
struct EmptyNotificationItemProxy: NotificationItemProxyProtocol {
let eventID: String
var event: TimelineEventProxyProtocol {
MockTimelineEventProxy(eventID: eventID)
}
let roomID: String
let receiverID: String
var senderDisplayName: String? { nil }
var senderAvatarURL: String? { nil }
var roomDisplayName: String { "" }
var roomAvatarURL: String? { nil }
var isNoisy: Bool { false }
var isDirect: Bool { false }
var isEncrypted: Bool { false }
var senderAvatarMediaSource: MediaSourceProxy? { nil }
var roomAvatarMediaSource: MediaSourceProxy? { nil }
var notificationIdentifier: String { "" }
}
extension NotificationItemProxyProtocol {
var requiresMediaProvider: Bool {
if senderAvatarMediaSource != nil || roomAvatarMediaSource != nil {
return true
}
switch event.type {
case .state, .none:
return false
case let .messageLike(content):
switch content {
case let .roomMessage(messageType):
switch messageType {
case .image, .video, .audio:
return true
default:
return false
}
default:
return false
}
}
}
// swiftlint: disable cyclomatic_complexity
/// Process the receiver item proxy
/// - Parameters:
/// - receiverId: identifier of the user that has received the notification
/// - roomId: Room identifier
/// - mediaProvider: Media provider to process also media. May be passed nil to ignore media operations.
/// - Returns: A notification content object if the notification should be displayed. Otherwise nil.
func process(mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
if self is EmptyNotificationItemProxy {
return processEmpty()
} else {
switch event.type {
case .none, .state:
return processEmpty()
case let .messageLike(content):
switch content {
case .roomMessage(messageType: let messageType):
switch messageType {
case .emote(content: let content):
return try await processEmote(content: content, mediaProvider: mediaProvider)
case .image(content: let content):
return try await processImage(content: content, mediaProvider: mediaProvider)
case .audio(content: let content):
return try await processAudio(content: content, mediaProvider: mediaProvider)
case .video(content: let content):
return try await processVideo(content: content, mediaProvider: mediaProvider)
case .file(content: let content):
return try await processFile(content: content, mediaProvider: mediaProvider)
case .notice(content: let content):
return try await processNotice(content: content, mediaProvider: mediaProvider)
case .text(content: let content):
return try await processText(content: content, mediaProvider: mediaProvider)
}
default:
return processEmpty()
}
}
}
}
// swiftlint: enable cyclomatic_complexity
// MARK: - Private
private func processEmpty() -> UNMutableNotificationContent {
let notification = UNMutableNotificationContent()
notification.receiverID = receiverID
notification.roomID = roomID
notification.eventID = event.eventID
notification.notificationID = id
notification.title = InfoPlistReader(bundle: .app).bundleDisplayName
notification.body = L10n.notification
notification.threadIdentifier = roomID
notification.categoryIdentifier = NotificationConstants.Category.reply
notification.sound = isNoisy ? UNNotificationSound(named: UNNotificationSoundName(rawValue: "message.caf")) : nil
return notification
}
private func processCommon(mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
var notification = UNMutableNotificationContent()
notification.receiverID = receiverID
notification.roomID = roomID
notification.eventID = event.eventID
notification.notificationID = id
notification.title = senderDisplayName ?? roomDisplayName
if notification.title != roomDisplayName {
notification.subtitle = roomDisplayName
}
// We can store the room identifier into the thread identifier since it's used for notifications
// that belong to the same group
notification.threadIdentifier = roomID
notification.categoryIdentifier = NotificationConstants.Category.reply
notification.sound = isNoisy ? UNNotificationSound(named: UNNotificationSoundName(rawValue: "message.caf")) : nil
let senderName = senderDisplayName ?? roomDisplayName
var groupName: String?
var mediaSource: MediaSourceProxy?
if !isDirect {
groupName = senderName != roomDisplayName ? roomDisplayName : nil
mediaSource = roomAvatarMediaSource
} else {
mediaSource = senderAvatarMediaSource
}
notification = try await notification.addSenderIcon(using: mediaProvider,
senderId: event.senderID,
receiverId: receiverID,
senderName: senderName,
groupName: groupName,
mediaSource: mediaSource,
roomId: roomID)
return notification
}
// MARK: Message Types
private func processText(content: TextMessageContent,
mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
let notification = try await processCommon(mediaProvider: mediaProvider)
notification.body = content.body
return notification
}
private func processImage(content: ImageMessageContent,
mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
var notification = try await processCommon(mediaProvider: mediaProvider)
notification.body = "📷 " + content.body
notification = await notification.addMediaAttachment(using: mediaProvider,
mediaSource: .init(source: content.source,
mimeType: content.info?.mimetype))
return notification
}
private func processVideo(content: VideoMessageContent,
mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
var notification = try await processCommon(mediaProvider: mediaProvider)
notification.body = "📹 " + content.body
notification = await notification.addMediaAttachment(using: mediaProvider,
mediaSource: .init(source: content.source,
mimeType: content.info?.mimetype))
return notification
}
private func processFile(content: FileMessageContent,
mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
let notification = try await processCommon(mediaProvider: mediaProvider)
notification.body = "📄 " + content.body
return notification
}
private func processNotice(content: NoticeMessageContent,
mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
let notification = try await processCommon(mediaProvider: mediaProvider)
notification.body = "" + content.body
return notification
}
private func processEmote(content: EmoteMessageContent,
mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
let notification = try await processCommon(mediaProvider: mediaProvider)
notification.body = "🫥 " + content.body
return notification
}
private func processAudio(content: AudioMessageContent,
mediaProvider: MediaProviderProtocol?) async throws -> UNMutableNotificationContent {
var notification = try await processCommon(mediaProvider: mediaProvider)
notification.body = "🔊 " + content.body
notification = await notification.addMediaAttachment(using: mediaProvider,
mediaSource: .init(source: content.source,
mimeType: content.info?.mimetype))
return notification
}
}