Deactivates apps by backing up + deleting them on iOS 13.5+

Deactivating apps by removing their profiles no longer works on iOS 13.5. Instead, AltStore will now back up the app by temporarily replacing it with AltBackup, then remove the app from the phone.
This commit is contained in:
Riley Testut
2020-05-16 16:17:18 -07:00
parent 19bf19350e
commit 2d87c396f1
9 changed files with 293 additions and 46 deletions

View File

@@ -51,6 +51,7 @@
BF44CC6C232AEB90004DA9C3 /* LaunchAtLogin.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BF44CC6A232AEB74004DA9C3 /* LaunchAtLogin.framework */; };
BF44CC6D232AEB90004DA9C3 /* LaunchAtLogin.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = BF44CC6A232AEB74004DA9C3 /* LaunchAtLogin.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
BF44EEF0246B08BA002A52F2 /* BackupController.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF44EEEF246B08BA002A52F2 /* BackupController.swift */; };
BF44EEF3246B3A17002A52F2 /* AltBackup.ipa in Resources */ = {isa = PBXBuildFile; fileRef = BF44EEF2246B3A17002A52F2 /* AltBackup.ipa */; };
BF44EEFC246B4550002A52F2 /* RemoveAppOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF44EEFB246B4550002A52F2 /* RemoveAppOperation.swift */; };
BF458690229872EA00BD7491 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF45868F229872EA00BD7491 /* AppDelegate.swift */; };
BF458694229872EA00BD7491 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = BF458693229872EA00BD7491 /* Assets.xcassets */; };
@@ -375,6 +376,7 @@
BF43002F22A71C960051E2BC /* UserDefaults+AltStore.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UserDefaults+AltStore.swift"; sourceTree = "<group>"; };
BF44CC6A232AEB74004DA9C3 /* LaunchAtLogin.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = LaunchAtLogin.framework; path = Carthage/Build/Mac/LaunchAtLogin.framework; sourceTree = "<group>"; };
BF44EEEF246B08BA002A52F2 /* BackupController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BackupController.swift; sourceTree = "<group>"; };
BF44EEF2246B3A17002A52F2 /* AltBackup.ipa */ = {isa = PBXFileReference; lastKnownFileType = file; path = AltBackup.ipa; sourceTree = "<group>"; };
BF44EEFB246B4550002A52F2 /* RemoveAppOperation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RemoveAppOperation.swift; sourceTree = "<group>"; };
BF45868D229872EA00BD7491 /* AltServer.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = AltServer.app; sourceTree = BUILT_PRODUCTS_DIR; };
BF45868F229872EA00BD7491 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
@@ -1171,6 +1173,7 @@
BFD247962284D7C100981D42 /* Resources */ = {
isa = PBXGroup;
children = (
BF44EEF2246B3A17002A52F2 /* AltBackup.ipa */,
BFB1169C22932DB100BB457C /* apps.json */,
BFD247762284B9A700981D42 /* Assets.xcassets */,
BF770E6822BD57DD002A40FE /* Silence.m4a */,
@@ -1588,6 +1591,7 @@
BFB4323F22DE852000B7F8BC /* UpdateCollectionViewCell.xib in Resources */,
BFE60738231ADF49002B0E8E /* Settings.storyboard in Resources */,
BFD2477A2284B9A700981D42 /* LaunchScreen.storyboard in Resources */,
BF44EEF3246B3A17002A52F2 /* AltBackup.ipa in Resources */,
BF770E6922BD57DD002A40FE /* Silence.m4a in Resources */,
BFD247772284B9A700981D42 /* Assets.xcassets in Resources */,
BFF0B6922321A305007A79E1 /* AboutPatreonHeaderView.xib in Resources */,

View File

@@ -53,6 +53,16 @@
<string>altstore</string>
</array>
</dict>
<dict>
<key>CFBundleTypeRole</key>
<string>Editor</string>
<key>CFBundleURLName</key>
<string>AltStore Backup</string>
<key>CFBundleURLSchemes</key>
<array>
<string>altstore-com.rileytestut.AltStore</string>
</array>
</dict>
</array>
<key>CFBundleVersion</key>
<string>1</string>

View File

@@ -74,6 +74,15 @@ extension AppManager
guard !self.isActivelyManagingApp(withBundleID: app.bundleIdentifier) else { continue }
if !UserDefaults.standard.isLegacyDeactivationSupported
{
// We can't (ab)use provisioning profiles to deactivate apps,
// which means we must delete apps to free up active slots.
// So, only check if active apps are installed to prevent
// false positives when checking inactive apps.
guard app.isActive else { continue }
}
let uti = UTTypeCopyDeclaration(app.installedAppUTI as CFString)?.takeRetainedValue() as NSDictionary?
if uti == nil && !legacySideloadedApps.contains(app.bundleIdentifier)
{
@@ -329,8 +338,13 @@ extension AppManager
}
}
func deactivate(_ installedApp: InstalledApp, completionHandler: @escaping (Result<InstalledApp, Error>) -> Void)
func deactivate(_ installedApp: InstalledApp, presentingViewController: UIViewController?, completionHandler: @escaping (Result<InstalledApp, Error>) -> Void)
{
if UserDefaults.standard.isLegacyDeactivationSupported
{
// Normally we pipe everything down into perform(),
// but the pre-iOS 13.5 deactivation method doesn't require
// authentication, so we keep it separate.
let context = OperationContext()
let findServerOperation = self.findServer(context: context) { _ in }
@@ -343,6 +357,31 @@ extension AppManager
self.run([deactivateAppOperation], context: context, requiresSerialQueue: true)
}
else
{
let group = RefreshGroup()
group.completionHandler = { (results) in
do
{
guard let result = results.values.first else { throw OperationError.unknown }
let installedApp = try result.get()
assert(installedApp.managedObjectContext != nil)
installedApp.managedObjectContext?.perform {
completionHandler(.success(installedApp))
}
}
catch
{
completionHandler(.failure(error))
}
}
let operation = AppOperation.deactivate(installedApp)
self.perform([operation], presentingViewController: presentingViewController, group: group)
}
}
func remove(_ installedApp: InstalledApp, completionHandler: @escaping (Result<Void, Error>) -> Void)
{
@@ -405,12 +444,15 @@ private extension AppManager
{
case install(AppProtocol)
case update(AppProtocol)
case refresh(AppProtocol)
case refresh(InstalledApp)
case deactivate(InstalledApp)
var app: AppProtocol {
switch self
{
case .install(let app), .update(let app), .refresh(let app): return app
case .install(let app), .update(let app),
.refresh(let app as AppProtocol), .deactivate(let app as AppProtocol):
return app
}
}
@@ -485,23 +527,44 @@ private extension AppManager
switch operation
{
case .refresh(let installedApp as InstalledApp) where installedApp.certificateSerialNumber == group.context.certificate?.serialNumber:
// Refreshing apps, but using same certificate as last time, so we can just refresh provisioning profiles.
case .install(let app), .update(let app):
let installProgress = self._install(app, operation: operation, group: group) { (result) in
self.finish(operation, result: result, group: group, progress: progress)
}
progress?.addChild(installProgress, withPendingUnitCount: 80)
let refreshProgress = self._refresh(installedApp, operation: operation, group: group) { (result) in
case .activate(let app): fallthrough
case .refresh(let app):
// Check if backup app is installed in place of real app.
let uti = UTTypeCopyDeclaration(app.installedBackupAppUTI as CFString)?.takeRetainedValue() as NSDictionary?
if app.certificateSerialNumber == group.context.certificate?.serialNumber && uti == nil
{
// Refreshing with same certificate as last time, and backup app isn't still installed,
// so we can just refresh provisioning profiles.
let refreshProgress = self._refresh(app, operation: operation, group: group) { (result) in
self.finish(operation, result: result, group: group, progress: progress)
}
progress?.addChild(refreshProgress, withPendingUnitCount: 80)
case .refresh(let app), .install(let app), .update(let app):
// Either installing for first time, or refreshing with a different signing certificate,
// so we need to resign the app then install it.
}
else
{
// Refreshing using different certificate or backup app is still installed,
// so we need to resign + install.
let installProgress = self._install(app, operation: operation, group: group) { (result) in
self.finish(operation, result: result, group: group, progress: progress)
}
progress?.addChild(installProgress, withPendingUnitCount: 80)
}
case .deactivate(let app):
let deactivateProgress = self._deactivate(app, operation: operation, group: group) { (result) in
self.finish(operation, result: result, group: group, progress: progress)
}
progress?.addChild(deactivateProgress, withPendingUnitCount: 80)
}
}
}
@@ -528,11 +591,13 @@ private extension AppManager
return group
}
private func _install(_ app: AppProtocol, operation: AppOperation, group: RefreshGroup, additionalEntitlements: [ALTEntitlement: Any]? = nil, cacheApp: Bool = true, completionHandler: @escaping (Result<InstalledApp, Error>) -> Void) -> Progress
private func _install(_ app: AppProtocol, operation: AppOperation, group: RefreshGroup, context: InstallAppOperationContext? = nil, additionalEntitlements: [ALTEntitlement: Any]? = nil, cacheApp: Bool = true, completionHandler: @escaping (Result<InstalledApp, Error>) -> Void) -> Progress
{
let progress = Progress.discreteProgress(totalUnitCount: 100)
let context = InstallAppOperationContext(bundleIdentifier: app.bundleIdentifier, authenticatedContext: group.context)
let context = context ?? InstallAppOperationContext(bundleIdentifier: app.bundleIdentifier, authenticatedContext: group.context)
assert(context.authenticatedContext === group.context)
context.beginInstallationHandler = { (installedApp) in
switch operation
{
@@ -578,6 +643,7 @@ private extension AppManager
}
progress.addChild(downloadOperation.progress, withPendingUnitCount: 25)
/* Verify App */
let verifyOperation = VerifyAppOperation(context: context)
verifyOperation.resultHandler = { (result) in
@@ -589,6 +655,7 @@ private extension AppManager
}
verifyOperation.addDependency(downloadOperation)
/* Refresh Anisette Data */
let refreshAnisetteDataOperation = FetchAnisetteDataOperation(context: group.context)
refreshAnisetteDataOperation.resultHandler = { (result) in
@@ -648,6 +715,8 @@ private extension AppManager
{
case .failure(let error): completionHandler(.failure(error))
case .success(let installedApp):
context.installedApp = installedApp
if let app = app as? StoreApp, let storeApp = installedApp.managedObjectContext?.object(with: app.objectID) as? StoreApp
{
installedApp.storeApp = storeApp
@@ -722,6 +791,140 @@ private extension AppManager
return progress
}
private func _deactivate(_ app: InstalledApp, operation appOperation: AppOperation, group: RefreshGroup, completionHandler: @escaping (Result<InstalledApp, Error>) -> Void) -> Progress
{
let progress = Progress.discreteProgress(totalUnitCount: 100)
let context = InstallAppOperationContext(bundleIdentifier: app.bundleIdentifier, authenticatedContext: group.context)
let installBackupAppProgress = Progress.discreteProgress(totalUnitCount: 100)
let installBackupAppOperation = RSTAsyncBlockOperation { [weak self] (operation) in
app.managedObjectContext?.perform {
guard let self = self else { return }
let progress = self._installBackupApp(for: app, operation: appOperation, group: group, context: context) { (result) in
switch result
{
case .success(let installedApp): context.installedApp = installedApp
case .failure(let error): context.error = error
}
operation.finish()
}
installBackupAppProgress.addChild(progress, withPendingUnitCount: 100)
}
}
progress.addChild(installBackupAppProgress, withPendingUnitCount: 70)
let backupAppOperation = BackupAppOperation(action: .backup, context: context)
backupAppOperation.resultHandler = { (result) in
switch result
{
case .failure(let error): context.error = error
case .success: break
}
}
backupAppOperation.addDependency(installBackupAppOperation)
progress.addChild(backupAppOperation.progress, withPendingUnitCount: 15)
let removeAppOperation = RemoveAppOperation(context: context)
removeAppOperation.resultHandler = { (result) in
completionHandler(result)
}
removeAppOperation.addDependency(backupAppOperation)
progress.addChild(removeAppOperation.progress, withPendingUnitCount: 15)
group.add([installBackupAppOperation, backupAppOperation, removeAppOperation])
self.run([installBackupAppOperation, backupAppOperation, removeAppOperation], context: group.context)
return progress
}
private func _installBackupApp(for app: InstalledApp, operation appOperation: AppOperation, group: RefreshGroup, context: InstallAppOperationContext, completionHandler: @escaping (Result<InstalledApp, Error>) -> Void) -> Progress
{
let progress = Progress.discreteProgress(totalUnitCount: 100)
guard let application = ALTApplication(fileURL: app.fileURL) else {
completionHandler(.failure(OperationError.appNotFound))
return progress
}
let prepareProgress = Progress.discreteProgress(totalUnitCount: 1)
let prepareOperation = RSTAsyncBlockOperation { (operation) in
app.managedObjectContext?.perform {
do
{
let temporaryDirectoryURL = context.temporaryDirectory.appendingPathComponent("AltBackup-" + UUID().uuidString)
try FileManager.default.createDirectory(at: temporaryDirectoryURL, withIntermediateDirectories: true, attributes: nil)
guard let altbackupFileURL = Bundle.main.url(forResource: "AltBackup", withExtension: "ipa") else { throw OperationError.appNotFound }
let unzippedAppBundleURL = try FileManager.default.unzipAppBundle(at: altbackupFileURL, toDirectory: temporaryDirectoryURL)
guard let unzippedAppBundle = Bundle(url: unzippedAppBundleURL) else { throw OperationError.invalidApp }
if var infoDictionary = unzippedAppBundle.infoDictionary
{
// Replace name + bundle identifier so AltStore treats it as the same app.
infoDictionary["CFBundleDisplayName"] = app.name
infoDictionary[kCFBundleIdentifierKey as String] = app.bundleIdentifier
// Add app-specific exported UTI so we can check later if this temporary backup app is still installed or not.
let installedAppUTI = ["UTTypeConformsTo": [],
"UTTypeDescription": "AltStore Backup App",
"UTTypeIconFiles": [],
"UTTypeIdentifier": app.installedBackupAppUTI,
"UTTypeTagSpecification": [:]] as [String : Any]
var exportedUTIs = infoDictionary[Bundle.Info.exportedUTIs] as? [[String: Any]] ?? []
exportedUTIs.append(installedAppUTI)
infoDictionary[Bundle.Info.exportedUTIs] = exportedUTIs
try (infoDictionary as NSDictionary).write(to: unzippedAppBundle.infoPlistURL)
}
guard let backupApp = ALTApplication(fileURL: unzippedAppBundleURL) else { throw OperationError.invalidApp }
context.app = backupApp
prepareProgress.completedUnitCount += 1
}
catch
{
print(error)
}
operation.finish()
}
}
progress.addChild(prepareProgress, withPendingUnitCount: 20)
let installProgress = Progress.discreteProgress(totalUnitCount: 100)
let installOperation = RSTAsyncBlockOperation { [weak self] (operation) in
guard let self = self else { return }
guard let backupApp = context.app else {
context.error = OperationError.invalidApp
operation.finish()
return
}
var appGroups = application.entitlements[.appGroups] as? [String] ?? []
appGroups.append(Bundle.baseAltStoreAppGroupID)
let additionalEntitlements: [ALTEntitlement: Any] = [.appGroups: appGroups]
let progress = self._install(backupApp, operation: appOperation, group: group, context: context, additionalEntitlements: additionalEntitlements, cacheApp: false) { (result) in
completionHandler(result)
operation.finish()
}
installProgress.addChild(progress, withPendingUnitCount: 100)
}
installOperation.addDependency(prepareOperation)
progress.addChild(installProgress, withPendingUnitCount: 80)
group.add([prepareOperation, installOperation])
self.run([prepareOperation, installOperation], context: group.context)
return progress
}
func finish(_ operation: AppOperation, result: Result<InstalledApp, Error>, group: RefreshGroup, progress: Progress?)
{
let result = result.mapError { (resultError) -> Error in
@@ -775,6 +978,7 @@ private extension AppManager
event = nil
case .update: event = .updatedApp(installedApp)
case .deactivate: event = nil
}
if let event = event
@@ -819,17 +1023,8 @@ private extension AppManager
switch operation
{
case _ where requiresSerialQueue: fallthrough
case is InstallAppOperation, is RefreshAppOperation:
if let context = context, let previousOperation = self.serialOperationQueue.operations.last(where: { context.operations.contains($0) })
{
// Ensure operations execute in the order they're added (in same context), since they may become ready at different points.
operation.addDependency(previousOperation)
}
self.serialOperationQueue.addOperation(operation)
default:
self.operationQueue.addOperation(operation)
case is InstallAppOperation, is RefreshAppOperation, is BackupAppOperation: self.serialOperationQueue.addOperation(operation)
default: self.operationQueue.addOperation(operation)
}
context?.operations.add(operation)
@@ -841,7 +1036,7 @@ private extension AppManager
switch operation
{
case .install, .update: return self.installationProgress[operation.bundleIdentifier]
case .refresh: return self.refreshProgress[operation.bundleIdentifier]
case .refresh, .deactivate: return self.refreshProgress[operation.bundleIdentifier]
}
}
@@ -850,7 +1045,7 @@ private extension AppManager
switch operation
{
case .install, .update: self.installationProgress[operation.bundleIdentifier] = progress
case .refresh: self.refreshProgress[operation.bundleIdentifier] = progress
case .refresh, .deactivate: self.refreshProgress[operation.bundleIdentifier] = progress
}
}
}

View File

@@ -247,6 +247,12 @@ extension InstalledApp
return installedAppUTI
}
class func installedBackupAppUTI(forBundleIdentifier bundleIdentifier: String) -> String
{
let installedBackupAppUTI = InstalledApp.installedAppUTI(forBundleIdentifier: bundleIdentifier) + ".backup"
return installedBackupAppUTI
}
var directoryURL: URL {
return InstalledApp.directoryURL(for: self)
}
@@ -262,4 +268,8 @@ extension InstalledApp
var installedAppUTI: String {
return InstalledApp.installedAppUTI(forBundleIdentifier: self.resignedBundleIdentifier)
}
var installedBackupAppUTI: String {
return InstalledApp.installedBackupAppUTI(forBundleIdentifier: self.resignedBundleIdentifier)
}
}

View File

@@ -404,6 +404,15 @@ private extension MyAppsViewController
// Ensure no leftover progress from active apps cell reuse.
cell.bannerView.button.progress = nil
if let progress = AppManager.shared.refreshProgress(for: installedApp), progress.fractionCompleted < 1.0
{
cell.bannerView.button.progress = progress
}
else
{
cell.bannerView.button.progress = nil
}
}
dataSource.prefetchHandler = { (item, indexPath, completion) in
let fileURL = item.fileURL
@@ -887,7 +896,7 @@ private extension MyAppsViewController
guard installedApp.isActive else { return }
installedApp.isActive = false
AppManager.shared.deactivate(installedApp) { (result) in
AppManager.shared.deactivate(installedApp, presentingViewController: self) { (result) in
do
{
let app = try result.get()

View File

@@ -63,7 +63,7 @@ class AuthenticatedOperationContext: OperationContext
class AppOperationContext
{
let bundleIdentifier: String
private let authenticatedContext: AuthenticatedOperationContext
let authenticatedContext: AuthenticatedOperationContext
var app: ALTApplication?
var provisioningProfiles: [String: ALTProvisioningProfile]?

View File

@@ -21,6 +21,10 @@ class RefreshGroup: NSObject
private(set) var results = [String: Result<InstalledApp, Error>]()
// Keep strong references to managed object contexts
// so they don't die out from under us.
private(set) var _contexts = Set<NSManagedObjectContext>()
private var isFinished = false
private let dispatchGroup = DispatchGroup()
@@ -33,6 +37,8 @@ class RefreshGroup: NSObject
super.init()
}
/// Used to keep track of which operations belong to this group.
/// This does _not_ add them to any operation queue.
func add(_ operations: [Foundation.Operation])
{
for operation in operations
@@ -57,6 +63,14 @@ class RefreshGroup: NSObject
func set(_ result: Result<InstalledApp, Error>, forAppWithBundleIdentifier bundleIdentifier: String)
{
self.results[bundleIdentifier] = result
switch result
{
case .failure: break
case .success(let installedApp):
guard let context = installedApp.managedObjectContext else { break }
self._contexts.insert(context)
}
}
func cancel()

View File

@@ -89,8 +89,13 @@ private extension SendAppOperation
connection.send(appData, prependSize: false) { (result) in
switch result
{
case .failure(let error): completionHandler(.failure(error))
case .success: completionHandler(.success(()))
case .failure(let error):
print("Failed to send app data (\(appData.count) bytes)")
completionHandler(.failure(error))
case .success:
print("Successfully sent app data (\(appData.count) bytes)")
completionHandler(.success(()))
}
}
}

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