sl@0: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: 
sl@0: #ifndef _ZIP_FILE_H_
sl@0: #define _ZIP_FILE_H_
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include <s32file.h>
sl@0: #include <charconv.h>
sl@0: 
sl@0: #include <localtypes.h>
sl@0: #include <ziparchive.h>
sl@0: #include <zipfilememberinputstream.h>
sl@0: #include <zipfilememberiterator.h>
sl@0: #include <zipfilemember.h>
sl@0: 
sl@0: // Forward Class Declaration(s)
sl@0: 
sl@0: class CFileInputStream;
sl@0: class CZipFileMemberIterator;
sl@0: class CZipFileMember;
sl@0: namespace ContentAccess
sl@0: 	{
sl@0: 	class CData;
sl@0: 	}
sl@0: 
sl@0: // End of Forward Class Declaration(s)
sl@0: 
sl@0: 
sl@0: /** 
sl@0: A CZipFile represents a ZIP archive contained in a single file. 
sl@0: Multi file zip archives are not supported.
sl@0: 
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class CZipFile : public CZipArchive
sl@0: 	{
sl@0: 	friend class RZipFileMemberReaderStream;
sl@0: 	friend class CZipFileMemberIterator;
sl@0: 
sl@0: 	public:
sl@0: 		/**	ZipFile error enumeration.
sl@0: 		*/
sl@0: 		enum
sl@0: 			{
sl@0: 			/** Cannot read file directory in the archive file*/
sl@0: 			KZipFileError 		= KZipArchiveMinError - 1,
sl@0: 			
sl@0: 			/** File not found error. It is not used in current implemenation*/
sl@0: 			KZipFileNotFound	= KZipFileError - 1,
sl@0: 			
sl@0: 			/** File IO error.Any error occurs during a archive file is readed. 
sl@0: 			For examples, any error about reading number of disk,
sl@0: 			an offset of signature, or the content of file is non-readable.
sl@0: 			*/
sl@0: 			KZipFileIOError 	= KZipFileError - 2
sl@0: 			};
sl@0: 
sl@0: 	public:
sl@0: 		IMPORT_C static CZipFile* NewL(RFs& aFs, RFile& aFile);	
sl@0: 		IMPORT_C static CZipFile* NewL(RFs& aFs, const TDesC& aFileName);
sl@0: 		IMPORT_C CZipFile(RFs& aFs, const TDesC& aFileName);
sl@0: 		IMPORT_C TInt OpenL(void);
sl@0: 		IMPORT_C void Close(void);
sl@0: 		IMPORT_C virtual ~CZipFile();
sl@0: 
sl@0: 	protected:
sl@0: 		IMPORT_C void ConstructL(const TDesC& aFileName);
sl@0: 		
sl@0: 		IMPORT_C void ConstructL(RFile& aFile);
sl@0: 
sl@0: 	public:
sl@0: 		IMPORT_C TInt Size(TInt& aSize) const;
sl@0:     
sl@0: 		IMPORT_C CZipFileMember* MemberL(const TDesC& aName);
sl@0: 		IMPORT_C CZipFileMember* CaseInsensitiveMemberL(const TDesC& aName);
sl@0: 		IMPORT_C CZipFileMember* CaseSensitiveOrCaseInsensitiveMemberL(const TDesC& aName);
sl@0: 		IMPORT_C TInt GetInputStreamL(const CZipFileMember* aMember, RZipFileMemberReaderStream*& aStream);
sl@0: 
sl@0:   		IMPORT_C CZipFileMemberIterator* GetMembersL(void);
sl@0: 	
sl@0:     
sl@0: protected:
sl@0: 
sl@0: 	/** 
sl@0: 	Internal representation of a compressed file in a zipfile
sl@0: 	@publishedAll
sl@0: 	@released
sl@0: 	*/
sl@0: 	struct TMemberPointer
sl@0: 		{
sl@0: 		/** the name of a compressed file*/
sl@0: 		TFileName*  iName;
sl@0: 		
sl@0: 		/** Not used in current implementation*/
sl@0: 		TUint32		iCentralHeaderOffset;
sl@0: 		
sl@0: 		/** The local offset of header in a compressed file*/
sl@0: 		TUint32	iLocalHeaderOffset;
sl@0: 		
sl@0: 		/** CRC with 32 bits length in a compressed file*/
sl@0: 		TUint32 iCRC32;
sl@0: 		
sl@0: 		/** The size of compressed file */	
sl@0: 		TUint32	iCompressedSize;
sl@0: 		
sl@0: 		/** The size of file without compressed*/
sl@0: 		TUint32	iUncompressedSize;
sl@0: 		};
sl@0: 		
sl@0: protected:
sl@0: 	TInt FindCentralDirectoryTrailer(TUint32& offset);
sl@0:     TInt ReadCentralDirectoryTrailer(TUint32 offset, TCentralDirectoryTrailer&);
sl@0:     TInt ReadCentralDirectoryHeaderL(TCentralDirectoryHeader&, TMemberPointer&,
sl@0:     	CCnvCharacterSetConverter* aConverter, TInt aConverterState);
sl@0: 
sl@0: 	TInt ReadLocalHeader(TUint32, TLocalHeader&);
sl@0: 	
sl@0: 	const TMemberPointer* FindMemberPointer(const TDesC&, TBool);
sl@0: 	
sl@0:     TInt LoadMemberPointersL(void);
sl@0:     
sl@0: 	RZipFileMemberReaderStream*   MakeInputStreamL(TUint32, TUint32, TUint32, TUint32);
sl@0:     CZipFileMember* MakeMemberL(TInt);
sl@0:     CZipFileMember* MakeMemberL(const TMemberPointer&, const TLocalHeader&);
sl@0:     
sl@0:     // File I/O Support
sl@0:     void OpenFileL(const TDesC& aFileName);
sl@0:   
sl@0:     TInt Read(TByte*, TUint32);
sl@0:     TInt Read(TUint16&);
sl@0:     TInt Read(TUint32&);
sl@0:     
sl@0:     TInt Seek(TInt);
sl@0: 
sl@0: 	// Misc
sl@0: 	void DeleteMemberPointers(void);
sl@0: 
sl@0: private:
sl@0:     const TDesC&				iFileName;
sl@0:     TUint32 iFileLength;
sl@0: 	
sl@0: 	/** The central directory of ZIP File Trailer*/
sl@0: 	TCentralDirectoryTrailer iTrailer;
sl@0: 	
sl@0: 	/** The pointer to a a compressed file in a zipfile*/
sl@0: 	TMemberPointer*	iMemberPointers;
sl@0: 	
sl@0: 	RFs& iFs;
sl@0: 	
sl@0: 	/** The pointer to CData object created from a zip file*/
sl@0: 	ContentAccess::CData* iData;
sl@0: 	};
sl@0: 
sl@0: #endif /* !_ZIP_FILE_H_ */