/*
|
* Copyright 2019 Google
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*/
|
|
#import <Foundation/Foundation.h>
|
|
@class FBLPromise<ValueType>;
|
|
NS_ASSUME_NONNULL_BEGIN
|
|
/// The class provides a convenient, multiplatform abstraction of the Keychain.
|
///
|
/// When using this API on macOS, the corresponding target must be signed with a provisioning
|
/// profile that has the Keychain Sharing capability enabled.
|
@interface GULKeychainStorage : NSObject
|
|
- (instancetype)init NS_UNAVAILABLE;
|
|
/** Initializes the keychain storage with Keychain Service name.
|
* @param service A Keychain Service name that will be used to store and retrieve objects. See also
|
* `kSecAttrService`.
|
*/
|
- (instancetype)initWithService:(NSString *)service;
|
|
/**
|
* Get an object by key.
|
* @param key The key.
|
* @param objectClass The expected object class required by `NSSecureCoding`.
|
* @param accessGroup The Keychain Access Group.
|
*
|
* @return Returns a promise. It is resolved with an object stored by key if exists. It is resolved
|
* with `nil` when the object not found. It fails on a Keychain error.
|
*/
|
- (FBLPromise<id<NSSecureCoding>> *)getObjectForKey:(NSString *)key
|
objectClass:(Class)objectClass
|
accessGroup:(nullable NSString *)accessGroup;
|
|
/**
|
* Saves the given object by the given key.
|
* @param object The object to store.
|
* @param key The key to store the object. If there is an existing object by the key, it will be
|
* overridden.
|
* @param accessGroup The Keychain Access Group.
|
*
|
* @return Returns which is resolved with `[NSNull null]` on success.
|
*/
|
- (FBLPromise<NSNull *> *)setObject:(id<NSSecureCoding>)object
|
forKey:(NSString *)key
|
accessGroup:(nullable NSString *)accessGroup;
|
|
/**
|
* Removes the object by the given key.
|
* @param key The key to store the object. If there is an existing object by the key, it will be
|
* overridden.
|
* @param accessGroup The Keychain Access Group.
|
*
|
* @return Returns which is resolved with `[NSNull null]` on success.
|
*/
|
- (FBLPromise<NSNull *> *)removeObjectForKey:(NSString *)key
|
accessGroup:(nullable NSString *)accessGroup;
|
|
#if TARGET_OS_OSX
|
/// If not `nil`, then only this keychain will be used to save and read data (see
|
/// `kSecMatchSearchList` and `kSecUseKeychain`. It is mostly intended to be used by unit tests.
|
@property(nonatomic, nullable) SecKeychainRef keychainRef;
|
#endif // TARGET_OS_OSX
|
|
@end
|
|
NS_ASSUME_NONNULL_END
|