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Force-enables “Enforce 3-App Limit” if iOS version does not support MacDirtyCow exploit

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Prevents “Enforce 3-App Limit” remaining enabled after updating iOS version without a way to disable it.
This commit is contained in:
Riley Testut
2023-02-07 16:35:15 -06:00
committed by Magesh K
parent 2cfc307359
commit f9c22ff617
2 changed files with 14 additions and 5 deletions
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6
AltStore/Settings/SettingsViewController.swift
View File

@@ -302,10 +302,8 @@ private extension SettingsViewController
switch section
{
case .macDirtyCow:
let ios16_2 = OperatingSystemVersion(majorVersion: 16, minorVersion: 2, patchVersion: 0)
let isMacDirtyCowExploitSupported = !ProcessInfo.processInfo.isOperatingSystemAtLeast(ios16_2)
return !(isMacDirtyCowExploitSupported && UserDefaults.standard.isDebugModeEnabled)
let isHidden = !(UserDefaults.standard.isMacDirtyCowSupported && UserDefaults.standard.isDebugModeEnabled)
return isHidden
default: return false
}

13
AltStoreCore/Extensions/UserDefaults+AltStore.swift
View File

@@ -71,6 +71,7 @@ public extension UserDefaults
@NSManaged @objc(activeAppsLimit) private var _activeAppsLimit: NSNumber?
@NSManaged var ignoreActiveAppsLimit: Bool
@NSManaged var isMacDirtyCowSupported: Bool
class func registerDefaults()
{
@@ -81,6 +82,9 @@ public extension UserDefaults
let ios14 = OperatingSystemVersion(majorVersion: 14, minorVersion: 0, patchVersion: 0)
let localServerSupportsRefreshing = !ProcessInfo.processInfo.isOperatingSystemAtLeast(ios14)
let ios16_2 = OperatingSystemVersion(majorVersion: 16, minorVersion: 2, patchVersion: 0)
let isMacDirtyCowSupported = ProcessInfo.processInfo.isOperatingSystemAtLeast(ios14) && !ProcessInfo.processInfo.isOperatingSystemAtLeast(ios16_2) // MacDirtyCow supports iOS 14.0 - 16.1.2
let defaults = [
#keyPath(UserDefaults.isAppLimitDisabled): false,
#keyPath(UserDefaults.isBackgroundRefreshEnabled): true,
@@ -92,10 +96,17 @@ public extension UserDefaults
#keyPath(UserDefaults.requiresAppGroupMigration): true,
#keyPath(UserDefaults.menuAnisetteList): "https://servers.sidestore.io/servers.json",
#keyPath(UserDefaults.menuAnisetteURL): "https://ani.sidestore.io",
#keyPath(UserDefaults.ignoreActiveAppsLimit): false
#keyPath(UserDefaults.ignoreActiveAppsLimit): false,
#keyPath(UserDefaults.isMacDirtyCowSupported): isMacDirtyCowSupported
] as [String : Any]
UserDefaults.standard.register(defaults: defaults)
UserDefaults.shared.register(defaults: defaults)
if !isMacDirtyCowSupported
{
// Disable ignoreActiveAppsLimit if running iOS version that doesn't support MacDirtyCow.
UserDefaults.standard.ignoreActiveAppsLimit = false
}
}
}