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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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extern NSString *const OWSMimeTypeApplicationOctetStream;
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extern NSString *const OWSMimeTypeApplicationZip;
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extern NSString *const OWSMimeTypeApplicationPdf;
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extern NSString *const OWSMimeTypeImagePng;
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extern NSString *const OWSMimeTypeImageJpeg;
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extern NSString *const OWSMimeTypeImageGif;
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extern NSString *const OWSMimeTypeImageTiff1;
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extern NSString *const OWSMimeTypeImageTiff2;
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extern NSString *const OWSMimeTypeImageBmp1;
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extern NSString *const OWSMimeTypeImageBmp2;
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extern NSString *const OWSMimeTypeOversizeTextMessage;
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extern NSString *const OWSMimeTypeUnknownForTests;
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extern NSString *const kOversizeTextAttachmentUTI;
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extern NSString *const kOversizeTextAttachmentFileExtension;
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extern NSString *const kUnknownTestAttachmentUTI;
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extern NSString *const kSyncMessageFileExtension;
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@interface MIMETypeUtil : NSObject
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+ (BOOL)isSupportedVideoMIMEType:(NSString *)contentType;
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+ (BOOL)isSupportedAudioMIMEType:(NSString *)contentType;
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+ (BOOL)isSupportedImageMIMEType:(NSString *)contentType;
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+ (BOOL)isSupportedAnimatedMIMEType:(NSString *)contentType;
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+ (BOOL)isSupportedVideoFile:(NSString *)filePath;
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+ (BOOL)isSupportedAudioFile:(NSString *)filePath;
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+ (BOOL)isSupportedImageFile:(NSString *)filePath;
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+ (BOOL)isSupportedAnimatedFile:(NSString *)filePath;
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+ (nullable NSString *)getSupportedExtensionFromVideoMIMEType:(NSString *)supportedMIMEType;
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+ (nullable NSString *)getSupportedExtensionFromAudioMIMEType:(NSString *)supportedMIMEType;
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+ (nullable NSString *)getSupportedExtensionFromImageMIMEType:(NSString *)supportedMIMEType;
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+ (nullable NSString *)getSupportedExtensionFromAnimatedMIMEType:(NSString *)supportedMIMEType;
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+ (BOOL)isAnimated:(NSString *)contentType;
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+ (BOOL)isImage:(NSString *)contentType;
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+ (BOOL)isVideo:(NSString *)contentType;
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+ (BOOL)isAudio:(NSString *)contentType;
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+ (BOOL)isText:(NSString *)contentType;
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+ (BOOL)isMicrosoftDoc:(NSString *)contentType;
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+ (BOOL)isVisualMedia:(NSString *)contentType;
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// filename is optional and should not be trusted.
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+ (nullable NSString *)filePathForAttachment:(NSString *)uniqueId
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ofMIMEType:(NSString *)contentType
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sourceFilename:(nullable NSString *)sourceFilename
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inFolder:(NSString *)folder;
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+ (NSSet<NSString *> *)supportedVideoUTITypes;
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+ (NSSet<NSString *> *)supportedAudioUTITypes;
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+ (NSSet<NSString *> *)supportedImageUTITypes;
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+ (NSSet<NSString *> *)supportedAnimatedImageUTITypes;
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+ (nullable NSString *)utiTypeForMIMEType:(NSString *)mimeType;
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+ (nullable NSString *)utiTypeForFileExtension:(NSString *)fileExtension;
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+ (nullable NSString *)fileExtensionForUTIType:(NSString *)utiType;
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+ (nullable NSString *)fileExtensionForMIMEType:(NSString *)mimeType;
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+ (nullable NSString *)mimeTypeForFileExtension:(NSString *)fileExtension;
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@end
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NS_ASSUME_NONNULL_END
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