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62 lines
2.6 KiB
62 lines
2.6 KiB
4 years ago
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/*
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* Copyright 2019 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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FOUNDATION_EXPORT NSString *const kGULKeychainUtilsErrorDomain;
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/// Helper functions to access Keychain.
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@interface GULKeychainUtils : NSObject
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/** Fetches a keychain item data matching to the provided query.
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* @param query A dictionary with Keychain query parameters. See docs for `SecItemCopyMatching` for
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* details.
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* @param outError A pointer to `NSError` instance or `NULL`. The instance at `outError` will be
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* assigned with an error if there is.
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* @returns Data for the first Keychain Item matching the provided query or `nil` if there is not
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* such an item (`outError` will be `nil` in this case) or an error occurred.
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*/
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+ (nullable NSData *)getItemWithQuery:(NSDictionary *)query
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error:(NSError *_Nullable *_Nullable)outError;
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/** Stores data to a Keychain Item matching to the provided query. An existing Keychain Item
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* matching the query parameters will be updated or a new will be created.
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* @param item A Keychain Item data to store.
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* @param query A dictionary with Keychain query parameters. See docs for `SecItemAdd` and
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* `SecItemUpdate` for details.
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* @param outError A pointer to `NSError` instance or `NULL`. The instance at `outError` will be
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* assigned with an error if there is.
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* @returns `YES` when data was successfully stored, `NO` otherwise.
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*/
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+ (BOOL)setItem:(NSData *)item
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withQuery:(NSDictionary *)query
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error:(NSError *_Nullable *_Nullable)outError;
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/** Removes a Keychain Item matching to the provided query.
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* @param query A dictionary with Keychain query parameters. See docs for `SecItemDelete` for
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* details.
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* @param outError A pointer to `NSError` instance or `NULL`. The instance at `outError` will be
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* assigned with an error if there is.
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* @returns `YES` if the item was removed successfully or doesn't exist, `NO` otherwise.
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*/
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+ (BOOL)removeItemWithQuery:(NSDictionary *)query error:(NSError *_Nullable *_Nullable)outError;
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@end
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NS_ASSUME_NONNULL_END
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