110 lines
3.9 KiB
Swift
110 lines
3.9 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import Kingfisher
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import Mastodon
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import ServiceLayer
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import UserNotifications
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final class NotificationService: UNNotificationServiceExtension {
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private let environment = AppEnvironment.live(
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userNotificationCenter: .current(),
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reduceMotion: { false })
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override init() {
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super.init()
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}
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var contentHandler: ((UNNotificationContent) -> Void)?
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var bestAttemptContent: UNMutableNotificationContent?
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override func didReceive(
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_ request: UNNotificationRequest,
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withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
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self.contentHandler = contentHandler
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bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)
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guard let bestAttemptContent = bestAttemptContent else { return }
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let parsingService = PushNotificationParsingService(environment: environment)
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let decryptedJSON: Data
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let identityId: Identity.Id
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let pushNotification: PushNotification
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do {
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(decryptedJSON, identityId) = try parsingService.extractAndDecrypt(userInfo: request.content.userInfo)
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pushNotification = try MastodonDecoder().decode(PushNotification.self, from: decryptedJSON)
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} catch {
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contentHandler(bestAttemptContent)
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return
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}
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bestAttemptContent.title = pushNotification.title
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bestAttemptContent.body = XMLUnescaper(string: pushNotification.body).unescape()
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let appPreferences = AppPreferences(environment: environment)
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if appPreferences.notificationSounds.contains(pushNotification.notificationType) {
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bestAttemptContent.sound = .default
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}
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if appPreferences.notificationAccountName,
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let accountName = try? AllIdentitiesService(environment: environment).identity(id: identityId)?.handle {
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bestAttemptContent.subtitle = accountName
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}
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if appPreferences.notificationPictures {
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Self.addImage(pushNotification: pushNotification,
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bestAttemptContent: bestAttemptContent,
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contentHandler: contentHandler)
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} else {
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contentHandler(bestAttemptContent)
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}
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}
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override func serviceExtensionTimeWillExpire() {
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if let contentHandler = contentHandler, let bestAttemptContent = bestAttemptContent {
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contentHandler(bestAttemptContent)
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}
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}
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}
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private extension NotificationService {
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static func addImage(pushNotification: PushNotification,
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bestAttemptContent: UNMutableNotificationContent,
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contentHandler: @escaping (UNNotificationContent) -> Void) {
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let fileName = pushNotification.icon.lastPathComponent
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let fileURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
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.appendingPathComponent(fileName)
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KingfisherManager.shared.retrieveImage(with: pushNotification.icon) {
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switch $0 {
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case let .success(result):
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let format: ImageFormat
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switch fileURL.pathExtension.lowercased() {
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case "jpg", "jpeg":
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format = .JPEG
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case "gif":
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format = .GIF
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case "png":
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format = .PNG
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default:
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format = .unknown
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}
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do {
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try result.image.kf.data(format: format)?.write(to: fileURL)
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bestAttemptContent.attachments =
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[try UNNotificationAttachment(identifier: fileName, url: fileURL)]
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contentHandler(bestAttemptContent)
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} catch {
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contentHandler(bestAttemptContent)
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}
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case .failure:
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contentHandler(bestAttemptContent)
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}
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}
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}
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}
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