зеркало из https://github.com/mozilla/pjs.git
106 строки
4.0 KiB
C++
106 строки
4.0 KiB
C++
/* nsJARInputStream.h
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Netscape Communicator source code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Mitch Stoltz <mstoltz@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsJARINPUTSTREAM_h__
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#define nsJARINPUTSTREAM_h__
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#include "nsIInputStream.h"
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#include "nsJAR.h"
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#include "nsTArray.h"
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/*-------------------------------------------------------------------------
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* Class nsJARInputStream declaration. This class defines the type of the
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* object returned by calls to nsJAR::GetInputStream(filename) for the
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* purpose of reading a file item out of a JAR file.
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*------------------------------------------------------------------------*/
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class nsJARInputStream : public nsIInputStream
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{
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public:
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nsJARInputStream() :
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mOutSize(0), mInCrc(0), mOutCrc(0), mCurPos(0),
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mMode(MODE_NOTINITED)
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{
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memset(&mZs, 0, sizeof(z_stream));
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}
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~nsJARInputStream() { Close(); }
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NS_DECL_ISUPPORTS
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NS_DECL_NSIINPUTSTREAM
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// takes ownership of |fd|, even on failure
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nsresult InitFile(nsJAR *aJar, nsZipItem *item);
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nsresult InitDirectory(nsJAR *aJar,
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const nsACString& aJarDirSpec,
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const char* aDir);
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private:
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nsRefPtr<nsZipHandle> mFd; // handle for reading
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PRUint32 mOutSize; // inflated size
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PRUint32 mInCrc; // CRC as provided by the zipentry
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PRUint32 mOutCrc; // CRC as calculated by me
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z_stream mZs; // zip data structure
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/* For directory reading */
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nsRefPtr<nsJAR> mJar; // string reference to zipreader
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PRUint32 mNameLen; // length of dirname
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nsCString mBuffer; // storage for generated text of stream
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PRUint32 mCurPos; // Current position in buffer
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PRUint32 mArrPos; // current position within mArray
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nsTArray<nsCString> mArray; // array of names in (zip) directory
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typedef enum {
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MODE_NOTINITED,
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MODE_CLOSED,
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MODE_DIRECTORY,
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MODE_INFLATE,
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MODE_COPY
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} JISMode;
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JISMode mMode; // Modus of the stream
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nsresult ContinueInflate(char* aBuf, PRUint32 aCount, PRUint32* aBytesRead);
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nsresult ReadDirectory(char* aBuf, PRUint32 aCount, PRUint32* aBytesRead);
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PRUint32 CopyDataToBuffer(char* &aBuffer, PRUint32 &aCount);
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};
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#endif /* nsJARINPUTSTREAM_h__ */
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