Supports refreshing apps with Siri on iOS 14

AltStore/AltStore.entitlements

@@ -4,6 +4,8 @@
 <dict>
 	<key>aps-environment</key>
 	<string>development</string>
+	<key>com.apple.developer.siri</key>
+	<true/>
 	<key>com.apple.security.application-groups</key>
 	<array>
 		<string>group.com.rileytestut.AltStore</string>

AltStore/AppDelegate.swift

@@ -9,47 +9,12 @@
 import UIKit
 import UserNotifications
 import AVFoundation
+import Intents
 
 import AltStoreCore
 import AltSign
 import Roxas
 
-private enum RefreshError: LocalizedError
-{
-    case noInstalledApps
-    
-    var errorDescription: String? {
-        switch self
-        {
-        case .noInstalledApps: return NSLocalizedString("No active apps require refreshing.", comment: "")
-        }
-    }
-}
-
-private extension CFNotificationName
-{
-    static let requestAppState = CFNotificationName("com.altstore.RequestAppState" as CFString)
-    static let appIsRunning = CFNotificationName("com.altstore.AppState.Running" as CFString)
-    
-    static func requestAppState(for appID: String) -> CFNotificationName
-    {
-        let name = String(CFNotificationName.requestAppState.rawValue) + "." + appID
-        return CFNotificationName(name as CFString)
-    }
-    
-    static func appIsRunning(for appID: String) -> CFNotificationName
-    {
-        let name = String(CFNotificationName.appIsRunning.rawValue) + "." + appID
-        return CFNotificationName(name as CFString)
-    }
-}
-
-private let ReceivedApplicationState: @convention(c) (CFNotificationCenter?, UnsafeMutableRawPointer?, CFNotificationName?, UnsafeRawPointer?, CFDictionary?) -> Void =
-{ (center, observer, name, object, userInfo) in
-    guard let appDelegate = UIApplication.shared.delegate as? AppDelegate, let name = name else { return }
-    appDelegate.receivedApplicationState(notification: name)
-}
-
 extension AppDelegate
 {
     static let openPatreonSettingsDeepLinkNotification = Notification.Name("com.rileytestut.AltStore.OpenPatreonSettingsDeepLinkNotification")
@@ -68,8 +33,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
     var window: UIWindow?
     
-    private var runningApplications: Set<String>?
-    private var backgroundRefreshContext: NSManagedObjectContext? // Keep context alive until finished refreshing.
+    private lazy var intentHandler = IntentHandler()
 
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
     {
@@ -128,6 +92,12 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     {
         return self.open(url)
     }
+    
+    func application(_ application: UIApplication, handlerFor intent: INIntent) -> Any?
+    {
+        guard intent is RefreshAllIntent else { return nil }
+        return self.intentHandler
+    }
 }
 
 @available(iOS 13, *)
@@ -263,93 +233,92 @@ extension AppDelegate
     
     func application(_ application: UIApplication, performFetchWithCompletionHandler backgroundFetchCompletionHandler: @escaping (UIBackgroundFetchResult) -> Void)
     {
-        if UserDefaults.standard.isBackgroundRefreshEnabled
+        if UserDefaults.standard.isBackgroundRefreshEnabled && !UserDefaults.standard.presentedLaunchReminderNotification
         {
-            ServerManager.shared.startDiscovering()
+            let threeHours: TimeInterval = 3 * 60 * 60
+            let trigger = UNTimeIntervalNotificationTrigger(timeInterval: threeHours, repeats: false)
             
-            if !UserDefaults.standard.presentedLaunchReminderNotification
-            {
-                let threeHours: TimeInterval = 3 * 60 * 60
-                let trigger = UNTimeIntervalNotificationTrigger(timeInterval: threeHours, repeats: false)
-                
-                let content = UNMutableNotificationContent()
-                content.title = NSLocalizedString("App Refresh Tip", comment: "")
-                content.body = NSLocalizedString("The more you open AltStore, the more chances it's given to refresh apps in the background.", comment: "")
-                
-                let request = UNNotificationRequest(identifier: "background-refresh-reminder5", content: content, trigger: trigger)
-                UNUserNotificationCenter.current().add(request)
-                
-                UserDefaults.standard.presentedLaunchReminderNotification = true
-            }
+            let content = UNMutableNotificationContent()
+            content.title = NSLocalizedString("App Refresh Tip", comment: "")
+            content.body = NSLocalizedString("The more you open AltStore, the more chances it's given to refresh apps in the background.", comment: "")
+            
+            let request = UNNotificationRequest(identifier: "background-refresh-reminder5", content: content, trigger: trigger)
+            UNUserNotificationCenter.current().add(request)
+            
+            UserDefaults.standard.presentedLaunchReminderNotification = true
         }
         
-        let refreshIdentifier = UUID().uuidString
-        
         BackgroundTaskManager.shared.performExtendedBackgroundTask { (taskResult, taskCompletionHandler) in
-            
-            func finish(_ result: Result<[String: Result<InstalledApp, Error>], Error>)
-            {
-                // If finish is actually called, that means an error occured during installation.
-                
-                if UserDefaults.standard.isBackgroundRefreshEnabled
-                {
-                    ServerManager.shared.stopDiscovering()
-                    self.scheduleFinishedRefreshingNotification(for: result, identifier: refreshIdentifier, delay: 0)
-                }
-                
-                taskCompletionHandler()
-                
-                self.backgroundRefreshContext = nil
-            }
-            
             if let error = taskResult.error
             {
                 print("Error starting extended background task. Aborting.", error)
                 backgroundFetchCompletionHandler(.failed)
-                finish(.failure(error))
+                taskCompletionHandler()
                 return
             }
             
             if !DatabaseManager.shared.isStarted
             {
                 DatabaseManager.shared.start() { (error) in
-                    if let error = error
+                    if error != nil
                     {
                         backgroundFetchCompletionHandler(.failed)
-                        finish(.failure(error))
+                        taskCompletionHandler()
                     }
                     else
                     {
-                        self.refreshApps(identifier: refreshIdentifier, backgroundFetchCompletionHandler: backgroundFetchCompletionHandler, completionHandler: finish(_:))
+                        self.performBackgroundFetch { (backgroundFetchResult) in
+                            backgroundFetchCompletionHandler(backgroundFetchResult)
+                        } refreshAppsCompletionHandler: { (refreshAppsResult) in
+                            taskCompletionHandler()
+                        }
                     }
                 }
             }
             else
             {
-                self.refreshApps(identifier: refreshIdentifier, backgroundFetchCompletionHandler: backgroundFetchCompletionHandler, completionHandler: finish(_:))
+                self.performBackgroundFetch { (backgroundFetchResult) in
+                    backgroundFetchCompletionHandler(backgroundFetchResult)
+                } refreshAppsCompletionHandler: { (refreshAppsResult) in
+                    taskCompletionHandler()
+                }
             }
         }
     }
+    
+    func performBackgroundFetch(backgroundFetchCompletionHandler: @escaping (UIBackgroundFetchResult) -> Void,
+                                refreshAppsCompletionHandler: @escaping (Result<[String: Result<InstalledApp, Error>], Error>) -> Void)
+    {
+        self.fetchSources { (result) in
+            switch result
+            {
+            case .failure: backgroundFetchCompletionHandler(.failed)
+            case .success: backgroundFetchCompletionHandler(.newData)
+            }
+            
+            if !UserDefaults.standard.isBackgroundRefreshEnabled
+            {
+                refreshAppsCompletionHandler(.success([:]))
+            }
+        }
+        
+        guard UserDefaults.standard.isBackgroundRefreshEnabled else { return }
+        
+        DatabaseManager.shared.persistentContainer.performBackgroundTask { (context) in
+            let installedApps = InstalledApp.fetchAppsForBackgroundRefresh(in: context)
+            AppManager.shared.backgroundRefresh(installedApps, completionHandler: refreshAppsCompletionHandler)
+        }
+    }
 }
 
 private extension AppDelegate
 {
-    func refreshApps(identifier: String,
-                     backgroundFetchCompletionHandler: @escaping (UIBackgroundFetchResult) -> Void,
-                     completionHandler: @escaping (Result<[String: Result<InstalledApp, Error>], Error>) -> Void)
+    func fetchSources(completionHandler: @escaping (Result<Set<Source>, Error>) -> Void)
     {
-        var fetchSourcesResult: Result<Set<Source>, Error>?
-        var serversResult: Result<Void, Error>?
-        
-        let dispatchGroup = DispatchGroup()
-        dispatchGroup.enter()
-        
         AppManager.shared.fetchSources() { (result) in
-            fetchSourcesResult = result.map { $0.0 }.mapError { $0 as Error }
-            
             do
             {
-                let (_, context) = try result.get()
+                let (sources, context) = try result.get()
                 
                 let previousUpdatesFetchRequest = InstalledApp.updatesFetchRequest() as! NSFetchRequest<NSFetchRequestResult>
                 previousUpdatesFetchRequest.includesPendingChanges = false
@@ -412,223 +381,14 @@ private extension AppDelegate
                 DispatchQueue.main.async {
                     UIApplication.shared.applicationIconBadgeNumber = updates.count
                 }
+                
+                completionHandler(.success(sources))
             }
             catch
             {
                 print("Error fetching apps:", error)
-                
-                fetchSourcesResult = .failure(error)
-            }
-            
-            dispatchGroup.leave()
-        }
-        
-        if UserDefaults.standard.isBackgroundRefreshEnabled
-        {
-            dispatchGroup.enter()
-            
-            DatabaseManager.shared.persistentContainer.performBackgroundTask { (context) in
-                let installedApps = InstalledApp.fetchAppsForBackgroundRefresh(in: context)
-                guard !installedApps.isEmpty else {
-                    serversResult = .success(())
-                    dispatchGroup.leave()
-                    
-                    completionHandler(.failure(RefreshError.noInstalledApps))
-                    
-                    return
-                }
-                
-                self.runningApplications = []
-                self.backgroundRefreshContext = context
-                
-                let identifiers = installedApps.compactMap { $0.bundleIdentifier }
-                print("Apps to refresh:", identifiers)
-                
-                DispatchQueue.global().async {
-                    let notificationCenter = CFNotificationCenterGetDarwinNotifyCenter()
-                    
-                    for identifier in identifiers
-                    {
-                        let appIsRunningNotification = CFNotificationName.appIsRunning(for: identifier)
-                        CFNotificationCenterAddObserver(notificationCenter, nil, ReceivedApplicationState, appIsRunningNotification.rawValue, nil, .deliverImmediately)
-                        
-                        let requestAppStateNotification = CFNotificationName.requestAppState(for: identifier)
-                        CFNotificationCenterPostNotification(notificationCenter, requestAppStateNotification, nil, nil, true)
-                    }
-                }
-                
-                // Wait for three seconds to:
-                // a) give us time to discover AltServers
-                // b) give other processes a chance to respond to requestAppState notification
-                DispatchQueue.main.asyncAfter(deadline: .now() + 3.0) {
-                    context.perform {
-                        if ServerManager.shared.discoveredServers.isEmpty
-                        {
-                            serversResult = .failure(ConnectionError.serverNotFound)
-                        }
-                        else
-                        {
-                            serversResult = .success(())
-                        }
-                        
-                        dispatchGroup.leave()
-                        
-                        let filteredApps = installedApps.filter { !(self.runningApplications?.contains($0.bundleIdentifier) ?? false) }
-                        print("Filtered Apps to Refresh:", filteredApps.map { $0.bundleIdentifier })
-                        
-                        let group = AppManager.shared.refresh(filteredApps, presentingViewController: nil)
-                        group.beginInstallationHandler = { (installedApp) in
-                            guard installedApp.bundleIdentifier == StoreApp.altstoreAppID else { return }
-                            
-                            // We're starting to install AltStore, which means the app is about to quit.
-                            // So, we schedule a "refresh successful" local notification to be displayed after a delay,
-                            // but if the app is still running, we cancel the notification.
-                            // Then, we schedule another notification and repeat the process.
-                            
-                            // Also since AltServer has already received the app, it can finish installing even if we're no longer running in background.
-                            
-                            if let error = group.context.error
-                            {
-                                self.scheduleFinishedRefreshingNotification(for: .failure(error), identifier: identifier)
-                            }
-                            else
-                            {
-                                var results = group.results
-                                results[installedApp.bundleIdentifier] = .success(installedApp)
-                                
-                                self.scheduleFinishedRefreshingNotification(for: .success(results), identifier: identifier)
-                            }
-                        }
-                        group.completionHandler = { (results) in
-                            completionHandler(.success(results))
-                        }
-                    }
-                }
+                completionHandler(.failure(error))
             }
         }
-        
-        dispatchGroup.notify(queue: .main) {
-            if !UserDefaults.standard.isBackgroundRefreshEnabled
-            {
-                guard let fetchSourcesResult = fetchSourcesResult else {
-                    backgroundFetchCompletionHandler(.failed)
-                    return
-                }
-                
-                switch fetchSourcesResult
-                {
-                case .failure: backgroundFetchCompletionHandler(.failed)
-                case .success: backgroundFetchCompletionHandler(.newData)
-                }
-                
-                completionHandler(.success([:]))
-            }
-            else
-            {
-                guard let fetchSourcesResult = fetchSourcesResult, let serversResult = serversResult else {
-                    backgroundFetchCompletionHandler(.failed)
-                    return
-                }
-                
-                // Call completionHandler early to improve chances of refreshing in the background again.
-                switch (fetchSourcesResult, serversResult)
-                {
-                case (.success, .success): backgroundFetchCompletionHandler(.newData)
-                case (.success, .failure(ConnectionError.serverNotFound)): backgroundFetchCompletionHandler(.newData)
-                case (.failure, _), (_, .failure): backgroundFetchCompletionHandler(.failed)
-                }
-            }
-        }
-    }
-    
-    func receivedApplicationState(notification: CFNotificationName)
-    {
-        let baseName = String(CFNotificationName.appIsRunning.rawValue)
-        
-        let appID = String(notification.rawValue).replacingOccurrences(of: baseName + ".", with: "")
-        self.runningApplications?.insert(appID)
-    }
-    
-    func scheduleFinishedRefreshingNotification(for result: Result<[String: Result<InstalledApp, Error>], Error>, identifier: String, delay: TimeInterval = 5)
-    {
-        func scheduleFinishedRefreshingNotification()
-        {
-            self.cancelFinishedRefreshingNotification(identifier: identifier)
-            
-            let content = UNMutableNotificationContent()
-            
-            var shouldPresentAlert = true
-            
-            do
-            {
-                let results = try result.get()
-                shouldPresentAlert = !results.isEmpty
-                
-                for (_, result) in results
-                {
-                    guard case let .failure(error) = result else { continue }
-                    throw error
-                }
-                
-                content.title = NSLocalizedString("Refreshed Apps", comment: "")
-                content.body = NSLocalizedString("All apps have been refreshed.", comment: "")
-            }
-            catch ConnectionError.serverNotFound
-            {
-                shouldPresentAlert = false
-            }
-            catch RefreshError.noInstalledApps
-            {
-                shouldPresentAlert = false
-            }
-            catch
-            {
-                print("Failed to refresh apps in background.", error)
-                
-                content.title = NSLocalizedString("Failed to Refresh Apps", comment: "")
-                content.body = error.localizedDescription
-                
-                shouldPresentAlert = true
-            }
-            
-            if shouldPresentAlert
-            {
-                let trigger = UNTimeIntervalNotificationTrigger(timeInterval: delay + 1, repeats: false)
-                
-                let request = UNNotificationRequest(identifier: identifier, content: content, trigger: trigger)
-                UNUserNotificationCenter.current().add(request)
-                
-                if delay > 0
-                {
-                    DispatchQueue.global().asyncAfter(deadline: .now() + delay) {
-                        UNUserNotificationCenter.current().getPendingNotificationRequests() { (requests) in
-                            // If app is still running at this point, we schedule another notification with same identifier.
-                            // This prevents the currently scheduled notification from displaying, and starts another countdown timer.
-                            // First though, make sure there _is_ still a pending request, otherwise it's been cancelled
-                            // and we should stop polling.
-                            guard requests.contains(where: { $0.identifier == identifier }) else { return }
-                            
-                            scheduleFinishedRefreshingNotification()
-                        }
-                    }
-                }
-            }
-        }
-        
-        scheduleFinishedRefreshingNotification()
-        
-        // Perform synchronously to ensure app doesn't quit before we've finishing saving to disk.
-        let context = DatabaseManager.shared.persistentContainer.newBackgroundContext()
-        context.performAndWait {
-            _ = RefreshAttempt(identifier: identifier, result: result, context: context)
-            
-            do { try context.save() }
-            catch { print("Failed to save refresh attempt.", error) }
-        }
-    }
-    
-    func cancelFinishedRefreshingNotification(identifier: String)
-    {
-        UNUserNotificationCenter.current().removePendingNotificationRequests(withIdentifiers: [identifier])
     }
 }

AltStore/Extensions/INInteraction+AltStore.swift

@@ -0,0 +1,23 @@
+//
+//  INInteraction+AltStore.swift
+//  AltStore
+//
+//  Created by Riley Testut on 9/4/20.
+//  Copyright © 2020 Riley Testut. All rights reserved.
+//
+
+import Intents
+
+// Requires iOS 14 in-app intent handling.
+@available(iOS 14, *)
+extension INInteraction
+{
+    static func refreshAllApps() -> INInteraction
+    {
+        let refreshAllIntent = RefreshAllIntent()
+        refreshAllIntent.suggestedInvocationPhrase = NSString.deferredLocalizedIntentsString(with: "Refresh my apps") as String
+        
+        let interaction = INInteraction(intent: refreshAllIntent, response: nil)
+        return interaction
+    }
+}

AltStore/Info.plist

@@ -66,6 +66,10 @@
 	</array>
 	<key>CFBundleVersion</key>
 	<string>1</string>
+	<key>INIntentsSupported</key>
+	<array>
+		<string>RefreshAllIntent</string>
+	</array>
 	<key>LSApplicationQueriesSchemes</key>
 	<array>
 		<string>altstore-com.rileytestut.AltStore</string>
@@ -85,6 +89,10 @@
 	</array>
 	<key>NSLocalNetworkUsageDescription</key>
 	<string>AltStore uses the local network to find and communicate with AltServer.</string>
+	<key>NSUserActivityTypes</key>
+	<array>
+		<string>RefreshAllIntent</string>
+	</array>
 	<key>UIApplicationSceneManifest</key>
 	<dict>
 		<key>UIApplicationSupportsMultipleScenes</key>

AltStore/Intents/IntentHandler.swift

@@ -0,0 +1,118 @@
+//
+//  IntentHandler.swift
+//  AltStore
+//
+//  Created by Riley Testut on 7/6/20.
+//  Copyright © 2020 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+import AltStoreCore
+
+class IntentHandler: NSObject, RefreshAllIntentHandling
+{
+    private let queue = DispatchQueue(label: "io.altstore.IntentHandler")
+    
+    private var completionHandlers = [RefreshAllIntent: (RefreshAllIntentResponse) -> Void]()
+    private var queuedResponses = [RefreshAllIntent: RefreshAllIntentResponse]()
+    
+    func confirm(intent: RefreshAllIntent, completion: @escaping (RefreshAllIntentResponse) -> Void)
+    {
+        // Refreshing apps usually, but not always, completes within alotted time.
+        // As a workaround, we'll start refreshing apps in confirm() so we can
+        // take advantage of some extra time before starting handle() timeout timer.
+
+        self.completionHandlers[intent] = { (response) in
+            if response.code != .ready
+            {
+                // Operation finished before confirmation "timeout".
+                // Cache response to return it when handle() is called.
+                self.queuedResponses[intent] = response
+            }
+            
+            completion(RefreshAllIntentResponse(code: .ready, userActivity: nil))
+        }
+        
+        // Give ourselves 5 extra seconds before starting timeout timer.
+        self.queue.asyncAfter(deadline: .now() + 5.0) {
+            self.finish(intent, response: RefreshAllIntentResponse(code: .ready, userActivity: nil))
+        }
+        
+        if !DatabaseManager.shared.isStarted
+        {
+            DatabaseManager.shared.start() { (error) in
+                if let error = error
+                {
+                    self.finish(intent, response: RefreshAllIntentResponse.failure(localizedDescription: error.localizedDescription))
+                }
+                else
+                {
+                    self.refreshApps(intent: intent)
+                }
+            }
+        }
+        else
+        {
+            self.refreshApps(intent: intent)
+        }
+    }
+    
+    func handle(intent: RefreshAllIntent, completion: @escaping (RefreshAllIntentResponse) -> Void)
+    {
+        self.completionHandlers[intent] = { (response) in
+            // Ignore .ready response from confirm() timeout.
+            guard response.code != .ready else { return }
+            completion(response)
+        }
+
+        if let response = self.queuedResponses[intent]
+        {
+            self.queuedResponses[intent] = nil
+            self.finish(intent, response: response)
+        }
+    }
+}
+
+private extension IntentHandler
+{
+    func finish(_ intent: RefreshAllIntent, response: RefreshAllIntentResponse)
+    {
+        self.queue.async {
+            guard let completionHandler = self.completionHandlers[intent] else { return }
+            self.completionHandlers[intent] = nil
+            
+            completionHandler(response)
+        }
+    }
+    
+    func refreshApps(intent: RefreshAllIntent)
+    {
+        DatabaseManager.shared.persistentContainer.performBackgroundTask { (context) in
+            let installedApps = InstalledApp.fetchActiveApps(in: context)
+            AppManager.shared.backgroundRefresh(installedApps, presentsNotifications: false) { (result) in
+                do
+                {
+                    let results = try result.get()
+                    
+                    for (_, result) in results
+                    {
+                        guard case let .failure(error) = result else { continue }
+                        throw error
+                    }
+                    
+                    self.finish(intent, response: RefreshAllIntentResponse(code: .success, userActivity: nil))
+                }
+                catch RefreshError.noInstalledApps
+                {
+                    self.finish(intent, response: RefreshAllIntentResponse(code: .success, userActivity: nil))
+                }
+                catch let error as NSError
+                {
+                    print("Failed to refresh apps in background.", error)
+                    self.finish(intent, response: RefreshAllIntentResponse.failure(localizedDescription: error.localizedFailureReason ?? error.localizedDescription))
+                }
+            }
+        }
+    }
+}

AltStore/Intents/Intents.intentdefinition

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>INEnums</key>
+	<array/>
+	<key>INIntentDefinitionModelVersion</key>
+	<string>1.2</string>
+	<key>INIntentDefinitionNamespace</key>
+	<string>KyhEWE</string>
+	<key>INIntentDefinitionSystemVersion</key>
+	<string>20A5354i</string>
+	<key>INIntentDefinitionToolsBuildVersion</key>
+	<string>12A8189n</string>
+	<key>INIntentDefinitionToolsVersion</key>
+	<string>12.0</string>
+	<key>INIntents</key>
+	<array>
+		<dict>
+			<key>INIntentCategory</key>
+			<string>generic</string>
+			<key>INIntentConfigurable</key>
+			<true/>
+			<key>INIntentDescriptionID</key>
+			<string>62S1rm</string>
+			<key>INIntentLastParameterTag</key>
+			<integer>3</integer>
+			<key>INIntentManagedParameterCombinations</key>
+			<dict>
+				<key></key>
+				<dict>
+					<key>INIntentParameterCombinationSupportsBackgroundExecution</key>
+					<true/>
+					<key>INIntentParameterCombinationTitle</key>
+					<string>Refresh All Apps</string>
+					<key>INIntentParameterCombinationTitleID</key>
+					<string>cJxa2I</string>
+					<key>INIntentParameterCombinationUpdatesLinked</key>
+					<true/>
+				</dict>
+			</dict>
+			<key>INIntentName</key>
+			<string>RefreshAll</string>
+			<key>INIntentParameterCombinations</key>
+			<dict>
+				<key></key>
+				<dict>
+					<key>INIntentParameterCombinationSupportsBackgroundExecution</key>
+					<true/>
+					<key>INIntentParameterCombinationTitle</key>
+					<string>Refresh All Apps</string>
+					<key>INIntentParameterCombinationTitleID</key>
+					<string>DKTGdO</string>
+				</dict>
+			</dict>
+			<key>INIntentResponse</key>
+			<dict>
+				<key>INIntentResponseCodes</key>
+				<array>
+					<dict>
+						<key>INIntentResponseCodeConciseFormatString</key>
+						<string>All apps have been refreshed.</string>
+						<key>INIntentResponseCodeConciseFormatStringID</key>
+						<string>3WMWsJ</string>
+						<key>INIntentResponseCodeFormatString</key>
+						<string>All apps have been refreshed.</string>
+						<key>INIntentResponseCodeFormatStringID</key>
+						<string>BjInD3</string>
+						<key>INIntentResponseCodeName</key>
+						<string>success</string>
+						<key>INIntentResponseCodeSuccess</key>
+						<true/>
+					</dict>
+					<dict>
+						<key>INIntentResponseCodeConciseFormatString</key>
+						<string>${localizedDescription}</string>
+						<key>INIntentResponseCodeConciseFormatStringID</key>
+						<string>GJdShK</string>
+						<key>INIntentResponseCodeFormatString</key>
+						<string>${localizedDescription}</string>
+						<key>INIntentResponseCodeFormatStringID</key>
+						<string>oXAiOU</string>
+						<key>INIntentResponseCodeName</key>
+						<string>failure</string>
+					</dict>
+				</array>
+				<key>INIntentResponseLastParameterTag</key>
+				<integer>3</integer>
+				<key>INIntentResponseParameters</key>
+				<array>
+					<dict>
+						<key>INIntentResponseParameterDisplayName</key>
+						<string>Localized Description</string>
+						<key>INIntentResponseParameterDisplayNameID</key>
+						<string>wdy22v</string>
+						<key>INIntentResponseParameterDisplayPriority</key>
+						<integer>1</integer>
+						<key>INIntentResponseParameterName</key>
+						<string>localizedDescription</string>
+						<key>INIntentResponseParameterTag</key>
+						<integer>3</integer>
+						<key>INIntentResponseParameterType</key>
+						<string>String</string>
+					</dict>
+				</array>
+			</dict>
+			<key>INIntentTitle</key>
+			<string>Refresh All Apps</string>
+			<key>INIntentTitleID</key>
+			<string>2b6Xto</string>
+			<key>INIntentType</key>
+			<string>Custom</string>
+			<key>INIntentVerb</key>
+			<string>Do</string>
+		</dict>
+	</array>
+	<key>INTypes</key>
+	<array/>
+</dict>
+</plist>

AltStore/Managing Apps/AppManager.swift

@@ -499,6 +499,17 @@ extension AppManager
     }
 }
 
+extension AppManager
+{
+    func backgroundRefresh(_ installedApps: [InstalledApp], presentsNotifications: Bool = true, completionHandler: @escaping (Result<[String: Result<InstalledApp, Error>], Error>) -> Void)
+    {
+        let backgroundRefreshAppsOperation = BackgroundRefreshAppsOperation(installedApps: installedApps)
+        backgroundRefreshAppsOperation.resultHandler = completionHandler
+        backgroundRefreshAppsOperation.presentsFinishedNotification = presentsNotifications
+        self.run([backgroundRefreshAppsOperation], context: nil)
+    }
+}
+
 private extension AppManager
 {
     enum AppOperation

AltStore/My Apps/MyAppsViewController.swift

@@ -8,6 +8,7 @@
 
 import UIKit
 import MobileCoreServices
+import Intents
 
 import AltStoreCore
 import AltSign
@@ -653,6 +654,15 @@ private extension MyAppsViewController
                 self.collectionView.reloadSections([Section.activeApps.rawValue, Section.inactiveApps.rawValue])
             }
         }
+        
+        if #available(iOS 14, *)
+        {
+            let interaction = INInteraction.refreshAllApps()
+            interaction.donate { (error) in
+                guard let error = error else { return }
+                print("Failed to donate intent \(interaction.intent).", error)
+            }
+        }
     }
     
     @IBAction func updateApp(_ sender: UIButton)

AltStore/Operations/BackgroundRefreshAppsOperation.swift

@@ -0,0 +1,272 @@
+//
+//  BackgroundRefreshAppsOperation.swift
+//  AltStore
+//
+//  Created by Riley Testut on 7/6/20.
+//  Copyright © 2020 Riley Testut. All rights reserved.
+//
+
+import UIKit
+import CoreData
+
+import AltStoreCore
+
+enum RefreshError: LocalizedError
+{
+    case noInstalledApps
+    
+    var errorDescription: String? {
+        switch self
+        {
+        case .noInstalledApps: return NSLocalizedString("No active apps require refreshing.", comment: "")
+        }
+    }
+}
+
+private extension CFNotificationName
+{
+    static let requestAppState = CFNotificationName("com.altstore.RequestAppState" as CFString)
+    static let appIsRunning = CFNotificationName("com.altstore.AppState.Running" as CFString)
+    
+    static func requestAppState(for appID: String) -> CFNotificationName
+    {
+        let name = String(CFNotificationName.requestAppState.rawValue) + "." + appID
+        return CFNotificationName(name as CFString)
+    }
+    
+    static func appIsRunning(for appID: String) -> CFNotificationName
+    {
+        let name = String(CFNotificationName.appIsRunning.rawValue) + "." + appID
+        return CFNotificationName(name as CFString)
+    }
+}
+
+private let ReceivedApplicationState: @convention(c) (CFNotificationCenter?, UnsafeMutableRawPointer?, CFNotificationName?, UnsafeRawPointer?, CFDictionary?) -> Void =
+{ (center, observer, name, object, userInfo) in
+    guard let name = name, let observer = observer else { return }
+    
+    let operation = unsafeBitCast(observer, to: BackgroundRefreshAppsOperation.self)
+    operation.receivedApplicationState(notification: name)
+}
+
+@objc(BackgroundRefreshAppsOperation)
+class BackgroundRefreshAppsOperation: ResultOperation<[String: Result<InstalledApp, Error>]>
+{
+    let installedApps: [InstalledApp]
+    private let managedObjectContext: NSManagedObjectContext
+    
+    var presentsFinishedNotification: Bool = true
+    
+    private let refreshIdentifier: String = UUID().uuidString
+    private var runningApplications: Set<String> = []
+    
+    init(installedApps: [InstalledApp])
+    {
+        self.installedApps = installedApps
+        self.managedObjectContext = installedApps.compactMap({ $0.managedObjectContext }).first ?? DatabaseManager.shared.persistentContainer.newBackgroundContext()
+        
+        super.init()
+    }
+    
+    override func finish(_ result: Result<[String: Result<InstalledApp, Error>], Error>)
+    {
+        super.finish(result)
+        
+        self.scheduleFinishedRefreshingNotification(for: result, delay: 0)
+        
+        self.managedObjectContext.perform {
+            self.stopListeningForRunningApps()
+        }
+        
+        DispatchQueue.main.async {
+            if UIApplication.shared.applicationState == .background
+            {
+                ServerManager.shared.stopDiscovering()
+            }
+        }        
+    }
+    
+    override func main()
+    {
+        super.main()
+        
+        guard !self.installedApps.isEmpty else {
+            self.finish(.failure(RefreshError.noInstalledApps))
+            return
+        }
+        
+        if !ServerManager.shared.isDiscovering
+        {
+            ServerManager.shared.startDiscovering()
+        }
+        
+        self.managedObjectContext.perform {
+            print("Apps to refresh:", self.installedApps.map(\.bundleIdentifier))
+            
+            self.startListeningForRunningApps()
+            
+            // Wait for three seconds to:
+            // a) give us time to discover AltServers
+            // b) give other processes a chance to respond to requestAppState notification
+            DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
+                self.managedObjectContext.perform {
+                    guard !ServerManager.shared.discoveredServers.isEmpty else { return self.finish(.failure(ConnectionError.serverNotFound)) }
+                    
+                    let filteredApps = self.installedApps.filter { !self.runningApplications.contains($0.bundleIdentifier) }
+                    print("Filtered Apps to Refresh:", filteredApps.map { $0.bundleIdentifier })
+                    
+                    let group = AppManager.shared.refresh(filteredApps, presentingViewController: nil)
+                    group.beginInstallationHandler = { (installedApp) in
+                        guard installedApp.bundleIdentifier == StoreApp.altstoreAppID else { return }
+                        
+                        // We're starting to install AltStore, which means the app is about to quit.
+                        // So, we schedule a "refresh successful" local notification to be displayed after a delay,
+                        // but if the app is still running, we cancel the notification.
+                        // Then, we schedule another notification and repeat the process.
+                        
+                        // Also since AltServer has already received the app, it can finish installing even if we're no longer running in background.
+                        
+                        if let error = group.context.error
+                        {
+                            self.scheduleFinishedRefreshingNotification(for: .failure(error))
+                        }
+                        else
+                        {
+                            var results = group.results
+                            results[installedApp.bundleIdentifier] = .success(installedApp)
+                            
+                            self.scheduleFinishedRefreshingNotification(for: .success(results))
+                        }
+                    }
+                    group.completionHandler = { (results) in
+                        self.finish(.success(results))
+                    }
+                }
+            }
+        }
+    }
+}
+
+private extension BackgroundRefreshAppsOperation
+{
+    func startListeningForRunningApps()
+    {
+        let notificationCenter = CFNotificationCenterGetDarwinNotifyCenter()
+        let observer = Unmanaged.passUnretained(self).toOpaque()
+        
+        for installedApp in self.installedApps
+        {
+            let appIsRunningNotification = CFNotificationName.appIsRunning(for: installedApp.bundleIdentifier)
+            CFNotificationCenterAddObserver(notificationCenter, observer, ReceivedApplicationState, appIsRunningNotification.rawValue, nil, .deliverImmediately)
+            
+            let requestAppStateNotification = CFNotificationName.requestAppState(for: installedApp.bundleIdentifier)
+            CFNotificationCenterPostNotification(notificationCenter, requestAppStateNotification, nil, nil, true)
+        }
+    }
+    
+    func stopListeningForRunningApps()
+    {
+        let notificationCenter = CFNotificationCenterGetDarwinNotifyCenter()
+        let observer = Unmanaged.passUnretained(self).toOpaque()
+        
+        for installedApp in self.installedApps
+        {
+            let appIsRunningNotification = CFNotificationName.appIsRunning(for: installedApp.bundleIdentifier)
+            CFNotificationCenterRemoveObserver(notificationCenter, observer, appIsRunningNotification, nil)
+        }
+    }
+    
+    func receivedApplicationState(notification: CFNotificationName)
+    {
+        let baseName = String(CFNotificationName.appIsRunning.rawValue)
+        
+        let appID = String(notification.rawValue).replacingOccurrences(of: baseName + ".", with: "")
+        self.runningApplications.insert(appID)
+    }
+    
+    func scheduleFinishedRefreshingNotification(for result: Result<[String: Result<InstalledApp, Error>], Error>, delay: TimeInterval = 5)
+    {
+        func scheduleFinishedRefreshingNotification()
+        {
+            self.cancelFinishedRefreshingNotification()
+            
+            let content = UNMutableNotificationContent()
+            
+            var shouldPresentAlert = true
+            
+            do
+            {
+                let results = try result.get()
+                shouldPresentAlert = !results.isEmpty
+                
+                for (_, result) in results
+                {
+                    guard case let .failure(error) = result else { continue }
+                    throw error
+                }
+                
+                content.title = NSLocalizedString("Refreshed Apps", comment: "")
+                content.body = NSLocalizedString("All apps have been refreshed.", comment: "")
+            }
+            catch ConnectionError.serverNotFound
+            {
+                shouldPresentAlert = false
+            }
+            catch RefreshError.noInstalledApps
+            {
+                shouldPresentAlert = false
+            }
+            catch
+            {
+                print("Failed to refresh apps in background.", error)
+                
+                content.title = NSLocalizedString("Failed to Refresh Apps", comment: "")
+                content.body = error.localizedDescription
+                
+                shouldPresentAlert = true
+            }
+            
+            if shouldPresentAlert
+            {
+                let trigger = UNTimeIntervalNotificationTrigger(timeInterval: delay + 1, repeats: false)
+                
+                let request = UNNotificationRequest(identifier: self.refreshIdentifier, content: content, trigger: trigger)
+                UNUserNotificationCenter.current().add(request)
+                
+                if delay > 0
+                {
+                    DispatchQueue.global().asyncAfter(deadline: .now() + delay) {
+                        UNUserNotificationCenter.current().getPendingNotificationRequests() { (requests) in
+                            // If app is still running at this point, we schedule another notification with same identifier.
+                            // This prevents the currently scheduled notification from displaying, and starts another countdown timer.
+                            // First though, make sure there _is_ still a pending request, otherwise it's been cancelled
+                            // and we should stop polling.
+                            guard requests.contains(where: { $0.identifier == self.refreshIdentifier }) else { return }
+                            
+                            scheduleFinishedRefreshingNotification()
+                        }
+                    }
+                }
+            }
+        }
+        
+        if self.presentsFinishedNotification
+        {
+            scheduleFinishedRefreshingNotification()
+        }        
+        
+        // Perform synchronously to ensure app doesn't quit before we've finishing saving to disk.
+        let context = DatabaseManager.shared.persistentContainer.newBackgroundContext()
+        context.performAndWait {
+            _ = RefreshAttempt(identifier: self.refreshIdentifier, result: result, context: context)
+            
+            do { try context.save() }
+            catch { print("Failed to save refresh attempt.", error) }
+        }
+    }
+    
+    func cancelFinishedRefreshingNotification()
+    {
+        UNUserNotificationCenter.current().removePendingNotificationRequests(withIdentifiers: [self.refreshIdentifier])
+    }
+}