modules/libjar/zipwriter/src/nsZipHeader.h

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is Zip Writer Component.
  15  *
  16  * The Initial Developer of the Original Code is
  17  * Dave Townsend <dtownsend@oxymoronical.com>.
  18  *
  19  * Portions created by the Initial Developer are Copyright (C) 2007
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK *****
  37  */
  38
  39 #ifndef _nsZipHeader_h_
  40 #define _nsZipHeader_h_
  41
  42 #include "nsString.h"
  43 #include "nsIOutputStream.h"
  44 #include "nsIInputStream.h"
  45 #include "nsIZipReader.h"
  46 #include "nsAutoPtr.h"
  47
  48 // High word is S_IFREG, low word is DOS file attribute
  49 #define ZIP_ATTRS_FILE 0x80000000
  50 // High word is S_IFDIR, low word is DOS dir attribute
  51 #define ZIP_ATTRS_DIRECTORY 0x40000010
  52 #define PERMISSIONS_FILE 0644
  53 #define PERMISSIONS_DIR 0755
  54
  55 // Combine file type attributes with unix style permissions
  56 #define ZIP_ATTRS(p, a) ((p & 0xfff) << 16) | a
  57
  58 class nsZipHeader : public nsIZipEntry
  59 {
  60 public:
  61     NS_DECL_ISUPPORTS
  62     NS_DECL_NSIZIPENTRY
  63
  64     nsZipHeader() :
  65         mCRC(0),
  66         mCSize(0),
  67         mUSize(0),
  68         mEAttr(0),
  69         mOffset(0),
  70         mFieldLength(0),
  71         mVersionMade(0x0300 + 23), // Generated on Unix by v2.3 (matches infozip)
  72         mVersionNeeded(20), // Requires v2.0 to extract
  73         mFlags(0),
  74         mMethod(0),
  75         mTime(0),
  76         mDate(0),
  77         mDisk(0),
  78         mIAttr(0),
  79         mInited(PR_FALSE),
  80         mExtraField(NULL)
  81     {
  82     }
  83
  84     ~nsZipHeader()
  85     {
  86         mExtraField = NULL;
  87     }
  88
  89     PRUint32 mCRC;
  90     PRUint32 mCSize;
  91     PRUint32 mUSize;
  92     PRUint32 mEAttr;
  93     PRUint32 mOffset;
  94     PRUint32 mFieldLength;
  95     PRUint16 mVersionMade;
  96     PRUint16 mVersionNeeded;
  97     PRUint16 mFlags;
  98     PRUint16 mMethod;
  99     PRUint16 mTime;
 100     PRUint16 mDate;
 101     PRUint16 mDisk;
 102     PRUint16 mIAttr;
 103     PRPackedBool mInited;
 104     nsCString mName;
 105     nsCString mComment;
 106     nsAutoArrayPtr<char> mExtraField;
 107
 108     void Init(const nsACString & aPath, PRTime aDate, PRUint32 aAttr,
 109               PRUint32 aOffset);
 110     PRUint32 GetFileHeaderLength();
 111     nsresult WriteFileHeader(nsIOutputStream *aStream);
 112     PRUint32 GetCDSHeaderLength();
 113     nsresult WriteCDSHeader(nsIOutputStream *aStream);
 114     nsresult ReadCDSHeader(nsIInputStream *aStream);
 115 };
 116
 117 #endif