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Add screen lock feature.

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pull/1/head
Matthew Chen 7 years ago
parent b62736d7d4
commit 1f82891024
1 changed files with 0 additions and 102 deletions
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102
Signal/src/util/OWSScreenLock.swift
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@ -82,37 +82,6 @@ import LocalAuthentication
// MARK: - Methods
// @objc public func isScreenLockSupported() -> Bool {
// AssertIsOnMainThread()
//
// let context = screenLockContext()
//
// var authError: NSError?
// let result = context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &authError)
// guard authError == nil else {
// Logger.error("\(TAG) could not determine if screen lock is supported: \(String(describing: authError))")
// return false
// }
// return result
// }
// @objc public func supportedBiometryType() -> LABiometryType {
// AssertIsOnMainThread()
//
// let context = screenLockContext()
//
// var authError: NSError?
// let result = context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &authError)
// guard authError == nil else {
// Logger.error("\(TAG) could not determine if screen lock is supported: \(String(describing: authError))")
// return .none
// }
// guard let biometryType = context.biometryType else {
// return .none
// }
// return biometryType
// }
// On failure, completion is called with an error argument.
// On success or cancel, completion is called with nil argument.
// Success and cancel can be differentiated by consulting
@ -269,7 +238,6 @@ import LocalAuthentication
return .failure(error:defaultErrorDescription)
}
// TODO: I'm not sure this is necessary.
if #available(iOS 11.0, *) {
switch laError.code {
case .biometryNotAvailable:
@ -321,7 +289,6 @@ import LocalAuthentication
owsFail("\(self.TAG) context not interactive.")
break
}
// This switch may fall through.
}
return .failure(error:defaultErrorDescription)
}
@ -351,73 +318,4 @@ import LocalAuthentication
return context
}
//
// typedef NS_ENUM(NSInteger, LAAccessControlOperation)
// {
// /// Access control will be used for item creation.
// LAAccessControlOperationCreateItem,
//
// /// Access control will be used for accessing existing item.
// LAAccessControlOperationUseItem,
//
// /// Access control will be used for key creation.
// LAAccessControlOperationCreateKey,
//
// /// Access control will be used for sign operation with existing key.
// LAAccessControlOperationUseKeySign,
//
// /// Access control will be used for data decryption using existing key.
// LAAccessControlOperationUseKeyDecrypt NS_ENUM_AVAILABLE(10_12, 10_0),
//
// /// Access control will be used for key exchange.
// LAAccessControlOperationUseKeyKeyExchange NS_ENUM_AVAILABLE(10_12, 10_0),
// } NS_ENUM_AVAILABLE(10_11, 9_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0);
//
//
//
// typedef NS_ENUM(NSInteger, LAPolicy)
// {
// /// Device owner is going to be authenticated using a biometric method (Touch ID or Face ID).
// ///
// /// @discussion Biometric authentication is required. If the biometry is not available, not enrolled,
// /// or locked out, then the evaluation of this policy will fail with LAErrorBiometryNotAvailable,
// /// LAErrorBiometryNotEnrolled or LAErrorBiometryLockout. Biometry can't be used without a passcode,
// /// i.e. when biometry is available, enrolled and not locked out but passcode is not set, then
// /// the evaluation will fail with LAErrorPasscodeNotSet.
// ///
// /// Touch ID authentication dialog contains a cancel button with default title "Cancel"
// /// which can be customized using localizedCancelTitle property, and a fallback button with
// /// default title "Enter Password" which can be customized using localizedFallbackTitle
// /// property. Fallback button is initially hidden and shows up after first unsuccessful
// /// Touch ID attempt. Tapping either button causes evaluatePolicy call to fail, returning
// /// a distinct error code: LAErrorUserCancel or LAErrorUserFallback.
// ///
// /// Face ID authentication begins with animating HUD. If it succeeds at first attempt,
// /// the HUD will disappear and no other UI is shown. If the first attempt fails, then
// /// LocalAuthentication will show a dialog with two buttons: "Cancel" and "Try Face ID Again".
// /// After second failure, the buttons are "Cancel" and "Enter Password" with the same
// // semantics as in the case of Touch ID.
// ///
// /// Biometric authentication will get locked after 5 unsuccessful attempts. After that,
// /// users have to unlock it by entering passcode. The passcode can be entered either at
// /// Lock Screen or even in app by the means of LAPolicyDeviceOwnerAuthentication.
// /// The Lock Screen unlock is preferred user experience because we generaly don't want users to
// /// enter their passcode at app's request.
// LAPolicyDeviceOwnerAuthenticationWithBiometrics NS_ENUM_AVAILABLE(10_12_2, 8_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0) = kLAPolicyDeviceOwnerAuthenticationWithBiometrics,
//
// /// Device owner is going to be authenticated by biometry or device passcode.
// ///
// /// @discussion Biometric or passcode authentication is required. If the biometry is available, enrolled and
// /// not locked out, users are asked for it first. Otherwise they are asked to enter device
// /// passcode. If passcode is not enabled, policy evaluation will fail with LAErrorPasscodeNotSet.
// ///
// /// Biometric authentication dialog behaves similarly as the one used by
// /// LAPolicyDeviceOwnerAuthenticationWithBiometrics. However, instead of "Enter Password"
// /// button there is "Enter Passcode" button which, when tapped, switches the authentication
// /// method and allows users to enter device passcode.
// ///
// /// Passcode authentication will get locked after 6 unsuccessful attempts with progressively
// /// increased backoff delay.
// LAPolicyDeviceOwnerAuthentication NS_ENUM_AVAILABLE(10_11, 9_0) = kLAPolicyDeviceOwnerAuthentication
}

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