session-ios/SessionNotificationServiceE.../NSENotificationPresenter.swift

275 lines
12 KiB
Swift

// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
import Foundation
import GRDB
import UserNotifications
import SignalUtilitiesKit
import SessionMessagingKit
import SessionUtilitiesKit
public class NSENotificationPresenter: NSObject, NotificationsProtocol {
private var notifications: [String: UNNotificationRequest] = [:]
public func notifyUser(_ db: Database, for interaction: Interaction, in thread: SessionThread, applicationState: UIApplication.State) {
let isMessageRequest: Bool = thread.isMessageRequest(db, includeNonVisible: true)
// Ensure we should be showing a notification for the thread
guard thread.shouldShowNotification(db, for: interaction, isMessageRequest: isMessageRequest) else {
return
}
let senderName: String = Profile.displayName(db, id: interaction.authorId, threadVariant: thread.variant)
let groupName: String = SessionThread.displayName(
threadId: thread.id,
variant: thread.variant,
closedGroupName: (try? thread.closedGroup.fetchOne(db))?.name,
openGroupName: (try? thread.openGroup.fetchOne(db))?.name
)
var notificationTitle: String = senderName
if thread.variant == .legacyGroup || thread.variant == .group || thread.variant == .community {
if thread.onlyNotifyForMentions && !interaction.hasMention {
// Ignore PNs if the group is set to only notify for mentions
return
}
notificationTitle = String(
format: NotificationStrings.incomingGroupMessageTitleFormat,
senderName,
groupName
)
}
let snippet: String = (interaction.previewText(db)
.filterForDisplay?
.replacingMentions(for: thread.id))
.defaulting(to: "APN_Message".localized())
let userInfo: [String: Any] = [
NotificationServiceExtension.isFromRemoteKey: true,
NotificationServiceExtension.threadIdKey: thread.id,
NotificationServiceExtension.threadVariantRaw: thread.variant.rawValue
]
let notificationContent = UNMutableNotificationContent()
notificationContent.userInfo = userInfo
notificationContent.sound = thread.notificationSound
.defaulting(to: db[.defaultNotificationSound] ?? Preferences.Sound.defaultNotificationSound)
.notificationSound(isQuiet: false)
notificationContent.badge = (try? Interaction.fetchUnreadCount(db))
.map { NSNumber(value: $0) }
.defaulting(to: NSNumber(value: 0))
// Title & body
let previewType: Preferences.NotificationPreviewType = db[.preferencesNotificationPreviewType]
.defaulting(to: .defaultPreviewType)
switch previewType {
case .nameAndPreview:
notificationContent.title = notificationTitle
notificationContent.body = snippet
case .nameNoPreview:
notificationContent.title = notificationTitle
notificationContent.body = NotificationStrings.incomingMessageBody
case .noNameNoPreview:
notificationContent.title = "Session"
notificationContent.body = NotificationStrings.incomingMessageBody
}
// If it's a message request then overwrite the body to be something generic (only show a notification
// when receiving a new message request if there aren't any others or the user had hidden them)
if isMessageRequest {
notificationContent.title = "Session"
notificationContent.body = "MESSAGE_REQUESTS_NOTIFICATION".localized()
}
// Add request (try to group notifications for interactions from open groups)
let identifier: String = interaction.notificationIdentifier(
shouldGroupMessagesForThread: (thread.variant == .community)
)
var trigger: UNNotificationTrigger?
if thread.variant == .community {
trigger = UNTimeIntervalNotificationTrigger(
timeInterval: Notifications.delayForGroupedNotifications,
repeats: false
)
let numberExistingNotifications: Int? = notifications[identifier]?
.content
.userInfo[NotificationServiceExtension.threadNotificationCounter]
.asType(Int.self)
var numberOfNotifications: Int = (numberExistingNotifications ?? 1)
if numberExistingNotifications != nil {
numberOfNotifications += 1 // Add one for the current notification
notificationContent.title = (previewType == .noNameNoPreview ?
notificationContent.title :
groupName
)
notificationContent.body = String(
format: NotificationStrings.incomingCollapsedMessagesBody,
"\(numberOfNotifications)"
)
}
notificationContent.userInfo[NotificationServiceExtension.threadNotificationCounter] = numberOfNotifications
}
addNotifcationRequest(
identifier: identifier,
notificationContent: notificationContent,
trigger: trigger
)
}
public func notifyUser(_ db: Database, forIncomingCall interaction: Interaction, in thread: SessionThread, applicationState: UIApplication.State) {
// No call notifications for muted or group threads
guard Date().timeIntervalSince1970 > (thread.mutedUntilTimestamp ?? 0) else { return }
guard
thread.variant != .legacyGroup &&
thread.variant != .group &&
thread.variant != .community
else { return }
guard
interaction.variant == .infoCall,
let infoMessageData: Data = (interaction.body ?? "").data(using: .utf8),
let messageInfo: CallMessage.MessageInfo = try? JSONDecoder().decode(
CallMessage.MessageInfo.self,
from: infoMessageData
)
else { return }
// Only notify missed calls
guard messageInfo.state == .missed || messageInfo.state == .permissionDenied else { return }
let userInfo: [String: Any] = [
NotificationServiceExtension.isFromRemoteKey: true,
NotificationServiceExtension.threadIdKey: thread.id,
NotificationServiceExtension.threadVariantRaw: thread.variant.rawValue
]
let notificationContent = UNMutableNotificationContent()
notificationContent.userInfo = userInfo
notificationContent.sound = thread.notificationSound
.defaulting(to: db[.defaultNotificationSound] ?? Preferences.Sound.defaultNotificationSound)
.notificationSound(isQuiet: false)
notificationContent.badge = (try? Interaction.fetchUnreadCount(db))
.map { NSNumber(value: $0) }
.defaulting(to: NSNumber(value: 0))
notificationContent.title = "Session"
notificationContent.body = ""
let senderName: String = Profile.displayName(db, id: interaction.authorId, threadVariant: thread.variant)
if messageInfo.state == .permissionDenied {
notificationContent.body = String(
format: "modal_call_missed_tips_explanation".localized(),
senderName
)
}
addNotifcationRequest(
identifier: UUID().uuidString,
notificationContent: notificationContent,
trigger: nil
)
}
public func notifyUser(_ db: Database, forReaction reaction: Reaction, in thread: SessionThread, applicationState: UIApplication.State) {
let isMessageRequest: Bool = thread.isMessageRequest(db, includeNonVisible: true)
// No reaction notifications for muted, group threads or message requests
guard Date().timeIntervalSince1970 > (thread.mutedUntilTimestamp ?? 0) else { return }
guard
thread.variant != .legacyGroup &&
thread.variant != .group &&
thread.variant != .community
else { return }
guard !isMessageRequest else { return }
let senderName: String = Profile.displayName(db, id: reaction.authorId, threadVariant: thread.variant)
let notificationTitle = "Session"
var notificationBody = String(format: "EMOJI_REACTS_NOTIFICATION".localized(), senderName, reaction.emoji)
// Title & body
let previewType: Preferences.NotificationPreviewType = db[.preferencesNotificationPreviewType]
.defaulting(to: .nameAndPreview)
switch previewType {
case .nameAndPreview: break
default: notificationBody = NotificationStrings.incomingMessageBody
}
let userInfo: [String: Any] = [
NotificationServiceExtension.isFromRemoteKey: true,
NotificationServiceExtension.threadIdKey: thread.id,
NotificationServiceExtension.threadVariantRaw: thread.variant.rawValue
]
let notificationContent = UNMutableNotificationContent()
notificationContent.userInfo = userInfo
notificationContent.sound = thread.notificationSound
.defaulting(to: db[.defaultNotificationSound] ?? Preferences.Sound.defaultNotificationSound)
.notificationSound(isQuiet: false)
notificationContent.title = notificationTitle
notificationContent.body = notificationBody
addNotifcationRequest(identifier: UUID().uuidString, notificationContent: notificationContent, trigger: nil)
}
public func cancelNotifications(identifiers: [String]) {
let notificationCenter = UNUserNotificationCenter.current()
notificationCenter.removePendingNotificationRequests(withIdentifiers: identifiers)
notificationCenter.removeDeliveredNotifications(withIdentifiers: identifiers)
}
public func clearAllNotifications() {
let notificationCenter = UNUserNotificationCenter.current()
notificationCenter.removeAllPendingNotificationRequests()
notificationCenter.removeAllDeliveredNotifications()
}
private func addNotifcationRequest(identifier: String, notificationContent: UNNotificationContent, trigger: UNNotificationTrigger?) {
let request = UNNotificationRequest(identifier: identifier, content: notificationContent, trigger: trigger)
SNLog("Add remote notification request: \(notificationContent.body)")
let semaphore = DispatchSemaphore(value: 0)
UNUserNotificationCenter.current().add(request) { error in
if let error = error {
SNLog("Failed to add notification request due to error:\(error)")
}
semaphore.signal()
}
semaphore.wait()
SNLog("Finish adding remote notification request")
}
}
private extension String {
func replacingMentions(for threadID: String) -> String {
var result = self
let regex = try! NSRegularExpression(pattern: "@[0-9a-fA-F]{66}", options: [])
var mentions: [(range: NSRange, publicKey: String)] = []
var m0 = regex.firstMatch(in: result, options: .withoutAnchoringBounds, range: NSRange(location: 0, length: result.utf16.count))
while let m1 = m0 {
let publicKey = String((result as NSString).substring(with: m1.range).dropFirst()) // Drop the @
var matchEnd = m1.range.location + m1.range.length
if let displayName: String = Profile.displayNameNoFallback(id: publicKey) {
result = (result as NSString).replacingCharacters(in: m1.range, with: "@\(displayName)")
mentions.append((range: NSRange(location: m1.range.location, length: displayName.utf16.count + 1), publicKey: publicKey)) // + 1 to include the @
matchEnd = m1.range.location + displayName.utf16.count
}
m0 = regex.firstMatch(in: result, options: .withoutAnchoringBounds, range: NSRange(location: matchEnd, length: result.utf16.count - matchEnd))
}
return result
}
}