144 lines
5.2 KiB
C++
144 lines
5.2 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1995.
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//
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// File: CMimeFt.hxx
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//
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// Contents:
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//
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// Classes:
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//
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// Functions:
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//
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// History: 04-16-97 DanpoZ (Danpo Zhang) Created
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//
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//----------------------------------------------------------------------------
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#ifndef _CMIMEFT_HXX_
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#define _CMIMEFT_HXX_
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#include <urlmon.hxx>
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#define FT_IBUF_SIZE 8192+2 // input buffer size default to 8K
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#define FT_OBUF_SIZE 6*8192 // output buffer size default to 6*IN
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//+---------------------------------------------------------------------------
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//
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// Class: CMimeFt
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//
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// Purpose: Decompressor MIME filter
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//
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// Interface: [support all IOInetProtocol interfaces]
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// [support all IOInetProtocolSink interfaces]
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//
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// History: 04-16-97 DanpoZ (Danpo Zhang) Created
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// 11-24-97 DanpoZ (Danpo Zhang) Added Stackable interface
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//
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//----------------------------------------------------------------------------
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class CMimeFt : public IOInetProtocol,
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public IOInetProtocolSink,
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public IOInetProtocolSinkStackable
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{
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public:
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// IUnknown methods
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STDMETHODIMP QueryInterface(REFIID iid, void **ppvObj);
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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// IOInetProtocol
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STDMETHODIMP Start(
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LPCWSTR szUrl,
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IOInetProtocolSink *pProtSink,
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IOInetBindInfo *pOIBindInfo,
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DWORD grfSTI,
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DWORD_PTR dwReserved
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);
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STDMETHODIMP Continue( PROTOCOLDATA *pStateInfo);
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STDMETHODIMP Abort( HRESULT hrReason, DWORD dwOptions);
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STDMETHODIMP Terminate( DWORD dwOptions);
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STDMETHODIMP Suspend();
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STDMETHODIMP Resume();
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STDMETHODIMP Read(void *pv, ULONG cb, ULONG *pcbRead);
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STDMETHODIMP Seek(
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LARGE_INTEGER dlibMove,
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DWORD dwOrigin,
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ULARGE_INTEGER *plibNewPosition
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);
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STDMETHODIMP LockRequest(DWORD dwOptions);
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STDMETHODIMP UnlockRequest();
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// IOInetProtocolSink
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STDMETHODIMP Switch( PROTOCOLDATA *pStateInfo);
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STDMETHODIMP ReportProgress( ULONG ulStatusCode, LPCWSTR szStatusText);
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STDMETHODIMP ReportData(
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DWORD grfBSCF,
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ULONG ulProgress,
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ULONG ulProgressMax
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);
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STDMETHODIMP ReportResult(
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HRESULT hrResult,
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DWORD dwError,
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LPCWSTR wzResult
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);
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// IOInetProtocolSinkStackable
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STDMETHODIMP SwitchSink(IOInetProtocolSink* pSink);
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STDMETHODIMP CommitSwitch();
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STDMETHODIMP RollbackSwitch();
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// static create method
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static HRESULT Create(
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CMimeFt** ppMft
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);
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virtual ~CMimeFt();
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private:
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// CMimeFt
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CMimeFt();
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HRESULT CreateBuffer();
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HRESULT SmartRead(void *pv, ULONG cb, ULONG *pcbRead, BOOL fSniff);
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private:
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CRefCount _CRefs; // ref count
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ULONG _ulCurSizeFmtIn; // processed incoming data
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ULONG _ulCurSizeFmtOut; // generated outgoing data
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ULONG _ulTotalSizeFmtIn; // total expected incoming data
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ULONG _ulTotalSizeFmtOut; // total expected outgoing data
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ULONG _ulOutAvailable; // available for outgoing
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ULONG _ulInBufferLeft; // left data in the compress buf
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ULONG _ulContentLength; // today bytes uncompressed
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BYTE* _pOutBuf; // holds incoming data
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BYTE* _pInBuf; // holds outgoing data
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IOInetProtocol* _pProt; // incoming
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IOInetProtocolSink* _pProtSink; // outgoing
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IDataFilter* _pDF; // filter
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IOInetProtocolSink* _pProtSinkOld; // for Commit-Rollback
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DWORD _grfBindF; // binding flags
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DWORD _grfBSCF; // status
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BOOL _bEncoding; // encoding or decoding?
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BOOL _bMimeReported; // mime type reported?
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BOOL _bMimeVerified; // mime type verified?
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BOOL _bCanCache; // No-cache?
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CHAR _szFileName[MAX_PATH]; // cache file name
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CHAR _szURL[MAX_PATH]; // url name
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LPWSTR _pwzMimeSuggested; // server content type
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CHAR _szSuggestedFileName[MAX_PATH]; // Suggested cache file name from headers
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HANDLE _hFile; // File Handle
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BOOL _fDelayReport; // delay report result?
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BOOL _fSniffed; // data sniff done?
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BOOL _fSniffInProgress; // sniff in progress?
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HRESULT _hrResult; // hr (delay report result)
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DWORD _dwError; // Err(delay report result)
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LPCWSTR _wzResult; // stt(delay report result)
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BOOL _fReadInProgress; // guards re-entrancy during Read
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};
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#endif
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