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/*
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* Copyright 2020 Google LLC
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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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/** A class with methods to help with gzipped data. */
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@interface GDTCCTCompressionHelper : NSObject
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/** Compresses the given data and returns a new data object.
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*
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* @note Reduced version from GULNSData+zlib.m of GoogleUtilities.
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* @return Compressed data, or nil if there was an error.
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*/
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+ (nullable NSData *)gzippedData:(NSData *)data;
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/** Returns YES if the data looks like it was gzip compressed by checking for the gzip magic number.
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*
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* @note: From https://en.wikipedia.org/wiki/Gzip, gzip's magic number is 1f 8b.
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* @return YES if the data appears gzipped, NO otherwise.
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*/
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+ (BOOL)isGzipped:(NSData *)data;
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@end
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NS_ASSUME_NONNULL_END
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