gecko/netwerk/streamconv/converters/nsHTTPCompressConv.h
2012-05-21 12:12:37 +01:00

86 lines
2.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#if !defined (__nsHTTPCompressConv__h__)
#define __nsHTTPCompressConv__h__ 1
#include "nsIStreamConverter.h"
#include "nsIStringStream.h"
#include "nsCOMPtr.h"
#include "zlib.h"
#define NS_HTTPCOMPRESSCONVERTER_CID \
{ \
/* 66230b2b-17fa-4bd3-abf4-07986151022d */ \
0x66230b2b, \
0x17fa, \
0x4bd3, \
{0xab, 0xf4, 0x07, 0x98, 0x61, 0x51, 0x02, 0x2d}\
}
#define HTTP_DEFLATE_TYPE "deflate"
#define HTTP_GZIP_TYPE "gzip"
#define HTTP_X_GZIP_TYPE "x-gzip"
#define HTTP_COMPRESS_TYPE "compress"
#define HTTP_X_COMPRESS_TYPE "x-compress"
#define HTTP_IDENTITY_TYPE "identity"
#define HTTP_UNCOMPRESSED_TYPE "uncompressed"
typedef enum {
HTTP_COMPRESS_GZIP,
HTTP_COMPRESS_DEFLATE,
HTTP_COMPRESS_COMPRESS,
HTTP_COMPRESS_IDENTITY
} CompressMode;
class nsHTTPCompressConv : public nsIStreamConverter {
public:
// nsISupports methods
NS_DECL_ISUPPORTS
NS_DECL_NSIREQUESTOBSERVER
NS_DECL_NSISTREAMLISTENER
// nsIStreamConverter methods
NS_DECL_NSISTREAMCONVERTER
nsHTTPCompressConv ();
virtual ~nsHTTPCompressConv ();
private:
nsIStreamListener *mListener; // this guy gets the converted data via his OnDataAvailable ()
CompressMode mMode;
unsigned char *mOutBuffer;
unsigned char *mInpBuffer;
PRUint32 mOutBufferLen;
PRUint32 mInpBufferLen;
nsCOMPtr<nsISupports> mAsyncConvContext;
nsCOMPtr<nsIStringInputStream> mStream;
nsresult do_OnDataAvailable (nsIRequest *request, nsISupports *aContext,
PRUint32 aSourceOffset, const char *buffer,
PRUint32 aCount);
bool mCheckHeaderDone;
bool mStreamEnded;
bool mStreamInitialized;
bool mDummyStreamInitialised;
z_stream d_stream;
unsigned mLen, hMode, mSkipCount, mFlags;
PRUint32 check_header (nsIInputStream *iStr, PRUint32 streamLen, nsresult *rv);
};
#endif