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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef _nsZipHeader_h_
#define _nsZipHeader_h_
#include "nsString.h"
#include "nsIOutputStream.h"
#include "nsIInputStream.h"
#include "nsIZipReader.h"
#include "mozilla/Attributes.h"
#include "mozilla/UniquePtr.h"
// High word is S_IFREG, low word is DOS file attribute
#define ZIP_ATTRS_FILE 0x80000000
// High word is S_IFDIR, low word is DOS dir attribute
#define ZIP_ATTRS_DIRECTORY 0x40000010
#define PERMISSIONS_FILE 0644
#define PERMISSIONS_DIR 0755
// Combine file type attributes with unix style permissions
#define ZIP_ATTRS(p, a) ((p & 0xfff) << 16) | a
class nsZipHeader final : public nsIZipEntry
{
~nsZipHeader()
{
mExtraField = nullptr;
mLocalExtraField = nullptr;
}
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIZIPENTRY
nsZipHeader() :
mCRC(0),
mCSize(0),
mUSize(0),
mEAttr(0),
mOffset(0),
mFieldLength(0),
mLocalFieldLength(0),
mVersionMade(0x0300 + 23), // Generated on Unix by v2.3 (matches infozip)
mVersionNeeded(20), // Requires v2.0 to extract
mFlags(0),
mMethod(0),
mTime(0),
mDate(0),
mDisk(0),
mIAttr(0),
mInited(false),
mWriteOnClose(false),
mExtraField(nullptr),
mLocalExtraField(nullptr)
{
}
uint32_t mCRC;
uint32_t mCSize;
uint32_t mUSize;
uint32_t mEAttr;
uint32_t mOffset;
uint32_t mFieldLength;
uint32_t mLocalFieldLength;
uint16_t mVersionMade;
uint16_t mVersionNeeded;
uint16_t mFlags;
uint16_t mMethod;
uint16_t mTime;
uint16_t mDate;
uint16_t mDisk;
uint16_t mIAttr;
bool mInited;
bool mWriteOnClose;
nsCString mName;
nsCString mComment;
mozilla::UniquePtr<uint8_t[]> mExtraField;
mozilla::UniquePtr<uint8_t[]> mLocalExtraField;
void Init(const nsACString & aPath, PRTime aDate, uint32_t aAttr,
uint32_t aOffset);
uint32_t GetFileHeaderLength();
nsresult WriteFileHeader(nsIOutputStream *aStream);
uint32_t GetCDSHeaderLength();
nsresult WriteCDSHeader(nsIOutputStream *aStream);
nsresult ReadCDSHeader(nsIInputStream *aStream);
const uint8_t * GetExtraField(uint16_t aTag, bool aLocal, uint16_t *aBlockSize);
nsresult PadExtraField(uint32_t aOffset, uint16_t aAlignSize);
};
#endif
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