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115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 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 Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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 mozilla.org 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) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#if !defined (__nsHTTPCompressConv__h__)
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#define __nsHTTPCompressConv__h__ 1
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#include "nsIStreamConverter.h"
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#include "nsIFactory.h"
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#include "nsCOMPtr.h"
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#include "zlib.h"
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#define NS_HTTPCOMPRESSCONVERTER_CID \
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{ \
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/* 66230b2b-17fa-4bd3-abf4-07986151022d */ \
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0x66230b2b, \
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0x17fa, \
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0x4bd3, \
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{0xab, 0xf4, 0x07, 0x98, 0x61, 0x51, 0x02, 0x2d}\
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}
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static NS_DEFINE_CID(kHTTPCompressConverterCID, NS_HTTPCOMPRESSCONVERTER_CID);
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#define HTTP_DEFLATE_TYPE "deflate"
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#define HTTP_GZIP_TYPE "gzip"
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#define HTTP_X_GZIP_TYPE "x-gzip"
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#define HTTP_COMPRESS_TYPE "compress"
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#define HTTP_X_COMPRESS_TYPE "x-compress"
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#define HTTP_IDENTITY_TYPE "identity"
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#define HTTP_UNCOMPRESSED_TYPE "uncompressed"
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typedef enum {
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HTTP_COMPRESS_GZIP,
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HTTP_COMPRESS_DEFLATE,
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HTTP_COMPRESS_COMPRESS,
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HTTP_COMPRESS_IDENTITY
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} CompressMode;
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class nsHTTPCompressConv : public nsIStreamConverter {
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public:
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// nsISupports methods
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NS_DECL_ISUPPORTS
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NS_DECL_NSIREQUESTOBSERVER
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NS_DECL_NSISTREAMLISTENER
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// nsIStreamConverter methods
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NS_DECL_NSISTREAMCONVERTER
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nsHTTPCompressConv ();
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virtual ~nsHTTPCompressConv ();
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private:
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nsIStreamListener *mListener; // this guy gets the converted data via his OnDataAvailable ()
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CompressMode mMode;
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unsigned char *mOutBuffer;
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unsigned char *mInpBuffer;
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PRUint32 mOutBufferLen;
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PRUint32 mInpBufferLen;
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nsCOMPtr<nsISupports> mAsyncConvContext;
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nsresult do_OnDataAvailable (nsIRequest *request, nsISupports *aContext, PRUint32 aSourceOffset, char *buffer, PRUint32 aCount);
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PRBool mCheckHeaderDone;
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PRBool mGzipStreamEnded;
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PRBool mGzipStreamInitialized;
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z_stream d_stream;
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unsigned mLen, hMode, mSkipCount, mFlags;
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PRUint32 check_header (nsIInputStream *iStr, PRUint32 streamLen, nsresult *rv);
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};
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#endif
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