williamr@2: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: // All rights reserved.
williamr@2: // This component and the accompanying materials are made available
williamr@4: // under the terms of "Eclipse Public License v1.0"
williamr@2: // which accompanies this distribution, and is available
williamr@4: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@2: //
williamr@2: // Initial Contributors:
williamr@2: // Nokia Corporation - initial contribution.
williamr@2: //
williamr@2: // Contributors:
williamr@2: //
williamr@2: // Description:
williamr@2: //
williamr@2: 
williamr@4: 
williamr@2: #ifndef _ZIP_FILE_H_
williamr@2: #define _ZIP_FILE_H_
williamr@2: 
williamr@2: #include <e32std.h>
williamr@2: #include <s32file.h>
williamr@2: #include <charconv.h>
williamr@2: 
williamr@4: #include <localtypes.h>
williamr@4: #include <ziparchive.h>
williamr@4: #include <zipfilememberinputstream.h>
williamr@2: #include <zipfilememberiterator.h>
williamr@2: #include <zipfilemember.h>
williamr@2: 
williamr@2: // Forward Class Declaration(s)
williamr@2: 
williamr@2: class CFileInputStream;
williamr@2: class CZipFileMemberIterator;
williamr@2: class CZipFileMember;
williamr@2: namespace ContentAccess
williamr@2: 	{
williamr@2: 	class CData;
williamr@2: 	}
williamr@2: 
williamr@2: // End of Forward Class Declaration(s)
williamr@2: 
williamr@2: 
williamr@2: /** 
williamr@2: A CZipFile represents a ZIP archive contained in a single file. 
williamr@2: Multi file zip archives are not supported.
williamr@2: 
williamr@2: @publishedAll
williamr@2: @released
williamr@2: */
williamr@2: class CZipFile : public CZipArchive
williamr@2: 	{
williamr@2: 	friend class RZipFileMemberReaderStream;
williamr@2: 	friend class CZipFileMemberIterator;
williamr@2: 
williamr@2: 	public:
williamr@2: 		/**	ZipFile error enumeration.
williamr@2: 		*/
williamr@2: 		enum
williamr@2: 			{
williamr@2: 			/** Cannot read file directory in the archive file*/
williamr@2: 			KZipFileError 		= KZipArchiveMinError - 1,
williamr@2: 			
williamr@2: 			/** File not found error. It is not used in current implemenation*/
williamr@2: 			KZipFileNotFound	= KZipFileError - 1,
williamr@2: 			
williamr@2: 			/** File IO error.Any error occurs during a archive file is readed. 
williamr@2: 			For examples, any error about reading number of disk,
williamr@2: 			an offset of signature, or the content of file is non-readable.
williamr@2: 			*/
williamr@2: 			KZipFileIOError 	= KZipFileError - 2
williamr@2: 			};
williamr@2: 
williamr@2: 	public:
williamr@2: 		IMPORT_C static CZipFile* NewL(RFs& aFs, RFile& aFile);	
williamr@2: 		IMPORT_C static CZipFile* NewL(RFs& aFs, const TDesC& aFileName);
williamr@2: 		IMPORT_C CZipFile(RFs& aFs, const TDesC& aFileName);
williamr@2: 		IMPORT_C TInt OpenL(void);
williamr@2: 		IMPORT_C void Close(void);
williamr@2: 		IMPORT_C virtual ~CZipFile();
williamr@2: 
williamr@2: 	protected:
williamr@2: 		IMPORT_C void ConstructL(const TDesC& aFileName);
williamr@2: 		
williamr@2: 		IMPORT_C void ConstructL(RFile& aFile);
williamr@2: 
williamr@2: 	public:
williamr@2: 		IMPORT_C TInt Size(TInt& aSize) const;
williamr@2:     
williamr@2: 		IMPORT_C CZipFileMember* MemberL(const TDesC& aName);
williamr@2: 		IMPORT_C CZipFileMember* CaseInsensitiveMemberL(const TDesC& aName);
williamr@2: 		IMPORT_C CZipFileMember* CaseSensitiveOrCaseInsensitiveMemberL(const TDesC& aName);
williamr@2: 		IMPORT_C TInt GetInputStreamL(const CZipFileMember* aMember, RZipFileMemberReaderStream*& aStream);
williamr@2: 
williamr@2:   		IMPORT_C CZipFileMemberIterator* GetMembersL(void);
williamr@2: 	
williamr@2:     
williamr@2: protected:
williamr@2: 
williamr@2: 	/** 
williamr@2: 	Internal representation of a compressed file in a zipfile
williamr@2: 	@publishedAll
williamr@2: 	@released
williamr@2: 	*/
williamr@2: 	struct TMemberPointer
williamr@2: 		{
williamr@2: 		/** the name of a compressed file*/
williamr@2: 		TFileName*  iName;
williamr@2: 		
williamr@2: 		/** Not used in current implementation*/
williamr@2: 		TUint32		iCentralHeaderOffset;
williamr@2: 		
williamr@2: 		/** The local offset of header in a compressed file*/
williamr@2: 		TUint32	iLocalHeaderOffset;
williamr@2: 		
williamr@2: 		/** CRC with 32 bits length in a compressed file*/
williamr@2: 		TUint32 iCRC32;
williamr@2: 		
williamr@2: 		/** The size of compressed file */	
williamr@2: 		TUint32	iCompressedSize;
williamr@2: 		
williamr@2: 		/** The size of file without compressed*/
williamr@2: 		TUint32	iUncompressedSize;
williamr@2: 		};
williamr@2: 		
williamr@2: protected:
williamr@2: 	TInt FindCentralDirectoryTrailer(TUint32& offset);
williamr@2:     TInt ReadCentralDirectoryTrailer(TUint32 offset, TCentralDirectoryTrailer&);
williamr@2:     TInt ReadCentralDirectoryHeaderL(TCentralDirectoryHeader&, TMemberPointer&,
williamr@2:     	CCnvCharacterSetConverter* aConverter, TInt aConverterState);
williamr@2: 
williamr@2: 	TInt ReadLocalHeader(TUint32, TLocalHeader&);
williamr@2: 	
williamr@2: 	const TMemberPointer* FindMemberPointer(const TDesC&, TBool);
williamr@2: 	
williamr@2:     TInt LoadMemberPointersL(void);
williamr@2:     
williamr@2: 	RZipFileMemberReaderStream*   MakeInputStreamL(TUint32, TUint32, TUint32, TUint32);
williamr@2:     CZipFileMember* MakeMemberL(TInt);
williamr@2:     CZipFileMember* MakeMemberL(const TMemberPointer&, const TLocalHeader&);
williamr@2:     
williamr@2:     // File I/O Support
williamr@2:     void OpenFileL(const TDesC& aFileName);
williamr@2:   
williamr@2:     TInt Read(TByte*, TUint32);
williamr@2:     TInt Read(TUint16&);
williamr@2:     TInt Read(TUint32&);
williamr@2:     
williamr@2:     TInt Seek(TInt);
williamr@2: 
williamr@2: 	// Misc
williamr@2: 	void DeleteMemberPointers(void);
williamr@2: 
williamr@2: private:
williamr@2:     const TDesC&				iFileName;
williamr@2:     TUint32 iFileLength;
williamr@2: 	
williamr@2: 	/** The central directory of ZIP File Trailer*/
williamr@2: 	TCentralDirectoryTrailer iTrailer;
williamr@2: 	
williamr@2: 	/** The pointer to a a compressed file in a zipfile*/
williamr@2: 	TMemberPointer*	iMemberPointers;
williamr@2: 	
williamr@2: 	RFs& iFs;
williamr@2: 	
williamr@2: 	/** The pointer to CData object created from a zip file*/
williamr@2: 	ContentAccess::CData* iData;
williamr@2: 	};
williamr@2: 
williamr@2: #endif /* !_ZIP_FILE_H_ */