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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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/* The Keychain error domain */
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extern NSString *const kFIRMessagingKeychainErrorDomain;
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/*
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* Wrapping the keychain operations in a serialize queue. This is to avoid keychain operation
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* blocking main queue.
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*/
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@interface FIRMessagingKeychain : NSObject
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/**
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* FIRMessagingKeychain.
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*
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* @return A shared instance of FIRMessagingKeychain.
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*/
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+ (instancetype)sharedInstance;
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/**
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* Get keychain items matching the given a query.
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*
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* @param keychainQuery The keychain query.
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*
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* @return An CFTypeRef result matching the provided inputs.
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*/
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- (CFTypeRef)itemWithQuery:(NSDictionary *)keychainQuery;
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/**
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* Remove the cached items from the keychain matching the query.
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*
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* @param keychainQuery The keychain query.
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* @param handler The callback handler which is invoked when the remove operation is
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* complete, with an error if there is any.
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*/
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- (void)removeItemWithQuery:(NSDictionary *)keychainQuery handler:(void (^)(NSError *error))handler;
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/**
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* Add the item with a given query.
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*
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* @param keychainQuery The keychain query.
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* @param handler The callback handler which is invoked when the add operation is
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* complete, with an error if there is any.
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*/
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- (void)addItemWithQuery:(NSDictionary *)keychainQuery handler:(void (^)(NSError *))handler;
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@end
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