666 lines
14 KiB
C++
666 lines
14 KiB
C++
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#ifndef W3RESPONSE_HXX_INCLUDED
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#define W3RESPONSE_HXX_INCLUDED
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//
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// SEND_RAW_BUFFER
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//
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// Stupid little helper class which wraps a buffer which is acached
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//
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class SEND_RAW_BUFFER
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{
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public:
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SEND_RAW_BUFFER()
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: _buffSendRaw( _abBuffer, sizeof( _abBuffer ) ),
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_cbLen( 0 )
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{
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}
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virtual ~SEND_RAW_BUFFER()
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{
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}
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VOID *
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operator new(
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size_t size
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)
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{
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DBG_ASSERT( size == sizeof( SEND_RAW_BUFFER ) );
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DBG_ASSERT( sm_pachSendRawBuffers != NULL );
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return sm_pachSendRawBuffers->Alloc();
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}
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VOID
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operator delete(
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VOID * pSendRawBuffer
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)
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{
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DBG_ASSERT( pSendRawBuffer != NULL );
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DBG_ASSERT( sm_pachSendRawBuffers != NULL );
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DBG_REQUIRE( sm_pachSendRawBuffers->Free( pSendRawBuffer ) );
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}
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VOID *
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QueryPtr(
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VOID
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)
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{
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return _buffSendRaw.QueryPtr();
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}
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DWORD
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QueryCB(
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VOID
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)
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{
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return _cbLen;
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}
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DWORD
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QuerySize(
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VOID
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)
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{
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return _buffSendRaw.QuerySize();
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}
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VOID
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SetLen(
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DWORD cbLen
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)
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{
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_cbLen = cbLen;
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}
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HRESULT
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Resize(
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DWORD cbLen
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)
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{
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if ( !_buffSendRaw.Resize( cbLen ) )
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{
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return HRESULT_FROM_WIN32( GetLastError() );
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}
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else
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{
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return NO_ERROR;
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}
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}
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static
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HRESULT
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Initialize(
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VOID
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);
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static
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VOID
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Terminate(
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VOID
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);
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LIST_ENTRY _listEntry;
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private:
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BUFFER _buffSendRaw;
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BYTE _abBuffer[ 8192 ];
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DWORD _cbLen;
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static ALLOC_CACHE_HANDLER* sm_pachSendRawBuffers;
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};
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//
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// HTTP status codes
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//
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#define REASON(x) (x),sizeof(x)-sizeof(CHAR)
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struct HTTP_STATUS
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{
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USHORT statusCode;
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PCHAR pszReason;
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DWORD cbReason;
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};
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extern HTTP_STATUS HttpStatusOk;
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extern HTTP_STATUS HttpStatusPartialContent;
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extern HTTP_STATUS HttpStatusMultiStatus;
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extern HTTP_STATUS HttpStatusMovedPermanently;
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extern HTTP_STATUS HttpStatusRedirect;
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extern HTTP_STATUS HttpStatusMovedTemporarily;
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extern HTTP_STATUS HttpStatusNotModified;
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extern HTTP_STATUS HttpStatusBadRequest;
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extern HTTP_STATUS HttpStatusUnauthorized;
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extern HTTP_STATUS HttpStatusForbidden;
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extern HTTP_STATUS HttpStatusNotFound;
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extern HTTP_STATUS HttpStatusMethodNotAllowed;
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extern HTTP_STATUS HttpStatusNotAcceptable;
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extern HTTP_STATUS HttpStatusProxyAuthRequired;
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extern HTTP_STATUS HttpStatusPreconditionFailed;
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extern HTTP_STATUS HttpStatusUrlTooLong;
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extern HTTP_STATUS HttpStatusRangeNotSatisfiable;
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extern HTTP_STATUS HttpStatusLockedError;
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extern HTTP_STATUS HttpStatusServerError;
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extern HTTP_STATUS HttpStatusNotImplemented;
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extern HTTP_STATUS HttpStatusBadGateway;
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extern HTTP_STATUS HttpStatusServiceUnavailable;
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extern HTTP_STATUS HttpStatusGatewayTimeout;
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//
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// HTTP Sub Errors
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//
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struct HTTP_SUB_ERROR
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{
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USHORT mdSubError;
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DWORD dwStringId;
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};
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extern HTTP_SUB_ERROR HttpNoSubError;
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extern HTTP_SUB_ERROR Http401BadLogon;
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extern HTTP_SUB_ERROR Http401Config;
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extern HTTP_SUB_ERROR Http401Resource;
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extern HTTP_SUB_ERROR Http401Filter;
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extern HTTP_SUB_ERROR Http401Application;
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extern HTTP_SUB_ERROR Http403ExecAccessDenied;
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extern HTTP_SUB_ERROR Http403ReadAccessDenied;
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extern HTTP_SUB_ERROR Http403WriteAccessDenied;
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extern HTTP_SUB_ERROR Http403SSLRequired;
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extern HTTP_SUB_ERROR Http403SSL128Required;
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extern HTTP_SUB_ERROR Http403IPAddressReject;
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extern HTTP_SUB_ERROR Http403CertRequired;
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extern HTTP_SUB_ERROR Http403SiteAccessDenied;
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extern HTTP_SUB_ERROR Http403TooManyUsers;
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extern HTTP_SUB_ERROR Http403InvalidateConfig;
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extern HTTP_SUB_ERROR Http403PasswordChange;
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extern HTTP_SUB_ERROR Http403MapperDenyAccess;
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extern HTTP_SUB_ERROR Http403CertRevoked;
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extern HTTP_SUB_ERROR Http403DirBrowsingDenied;
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extern HTTP_SUB_ERROR Http403CertInvalid;
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extern HTTP_SUB_ERROR Http403CertTimeInvalid;
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extern HTTP_SUB_ERROR Http404SiteNotFound;
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extern HTTP_SUB_ERROR Http502Timeout;
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extern HTTP_SUB_ERROR Http502PrematureExit;
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#define W3_RESPONSE_INLINE_HEADERS 10
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#define W3_RESPONSE_INLINE_CHUNKS 5
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#define W3_RESPONSE_SIGNATURE ((DWORD) 'PR3W')
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#define W3_RESPONSE_SIGNATURE_FREE ((DWORD) 'pr3w')
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#define W3_RESPONSE_ASYNC 0x01
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#define W3_RESPONSE_MORE_DATA 0x02
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#define W3_RESPONSE_DISCONNECT 0x04
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#define W3_RESPONSE_UL_CACHEABLE 0x08
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#define W3_RESPONSE_SUPPRESS_ENTITY 0x10
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#define W3_RESPONSE_SUPPRESS_HEADERS 0x20
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enum W3_RESPONSE_MODE
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{
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RESPONSE_MODE_PARSED,
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RESPONSE_MODE_RAW
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};
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class W3_RESPONSE
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{
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private:
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DWORD _dwSignature;
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HTTP_RESPONSE _ulHttpResponse;
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HTTP_SUB_ERROR _subError;
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//
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// Buffer to store any strings for header values/names which are
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// referenced in the _ulHttpResponse
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//
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CHUNK_BUFFER _HeaderBuffer;
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HTTP_UNKNOWN_HEADER _rgUnknownHeaders[ W3_RESPONSE_INLINE_HEADERS ];
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BUFFER _bufUnknownHeaders;
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//
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// Buffer to store chunk data structures referenced in calls
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// to UlSendHttpResponse or UlSendEntityBody
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//
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HTTP_DATA_CHUNK _rgChunks[ W3_RESPONSE_INLINE_CHUNKS ];
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BUFFER _bufChunks;
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DWORD _cChunks;
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ULONGLONG _cbContentLength;
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//
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// Has this response been touched at all?
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//
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BOOL _fResponseTouched;
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//
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// Has a response been sent
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//
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BOOL _fResponseSent;
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//
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// Some buffers used when in raw mode
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//
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STRA _strRawCoreHeaders;
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//
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// Are we in raw mode or parsed mode?
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//
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W3_RESPONSE_MODE _responseMode;
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//
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// Does an ISAPI expect to complete headers with WriteClient()
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//
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BOOL _fIncompleteHeaders;
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//
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// Which chunk is the first of actual entity
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//
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DWORD _cFirstEntityChunk;
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//
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// List of send raw buffers that need to be freed on reset
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//
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LIST_ENTRY _SendRawBufferHead;
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HRESULT
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BuildRawCoreHeaders(
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W3_CONTEXT * pW3Context
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);
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HRESULT
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SwitchToRawMode(
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W3_CONTEXT * pW3Context,
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CHAR * pszAdditionalHeaders,
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DWORD cchAdditionalHeaders
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);
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HRESULT
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SwitchToParsedMode(
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VOID
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);
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HRESULT
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ParseHeadersFromStream(
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CHAR * pszStream
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);
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HRESULT
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InsertDataChunk(
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HTTP_DATA_CHUNK * pNewChunk,
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LONG cPosition
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);
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HTTP_DATA_CHUNK *
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QueryChunks(
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VOID
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)
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{
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return (HTTP_DATA_CHUNK*) _bufChunks.QueryPtr();
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}
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VOID
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Reset(
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VOID
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);
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public:
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W3_RESPONSE()
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: _bufUnknownHeaders( (BYTE*) _rgUnknownHeaders,
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sizeof( _rgUnknownHeaders ) ),
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_bufChunks( (BYTE*) _rgChunks,
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sizeof( _rgChunks ) )
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{
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InitializeListHead( &_SendRawBufferHead );
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Reset();
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_dwSignature = W3_RESPONSE_SIGNATURE;
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}
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~W3_RESPONSE()
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{
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SEND_RAW_BUFFER * pBuffer;
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while ( !IsListEmpty( &_SendRawBufferHead ) )
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{
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pBuffer = CONTAINING_RECORD( _SendRawBufferHead.Flink,
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SEND_RAW_BUFFER,
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_listEntry );
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RemoveEntryList( &( pBuffer->_listEntry ) );
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delete pBuffer;
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}
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_dwSignature = W3_RESPONSE_SIGNATURE_FREE;
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}
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static
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HRESULT
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Initialize(
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VOID
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);
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static
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VOID
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Terminate(
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VOID
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);
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static
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HRESULT
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ReadFileIntoBuffer(
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HANDLE hFile,
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SEND_RAW_BUFFER * pSendBuffer,
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ULONGLONG cbCurrentFileOffset
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);
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BOOL
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CheckSignature(
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VOID
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) const
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{
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return _dwSignature == W3_RESPONSE_SIGNATURE;
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}
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//
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// Core header adding/deleting functions
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//
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HRESULT
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DeleteHeader(
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CHAR * pszHeaderName
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);
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HRESULT
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SetHeader(
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DWORD headerIndex,
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CHAR * pszHeaderValue,
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DWORD cchHeaderValue,
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BOOL fAppend = FALSE
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);
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HRESULT
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SetHeaderByReference(
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DWORD headerIndex,
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CHAR * pszHeaderValue,
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DWORD cchHeaderValue,
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BOOL fForceParsedMode = FALSE
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);
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HRESULT
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SetHeader(
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CHAR * pszHeaderName,
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DWORD cchHeaderName,
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CHAR * pszHeaderValue,
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DWORD cchHeaderValue,
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BOOL fAppend = FALSE,
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BOOL fForceParsedMode = FALSE,
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BOOL fAlwaysAddUnknown = FALSE
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);
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//
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// Some friendly SetHeader helpers
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//
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CHAR *
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GetHeader(
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DWORD headerIndex
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)
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{
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HRESULT hr;
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|
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if ( _responseMode == RESPONSE_MODE_RAW )
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{
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hr = SwitchToParsedMode();
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if ( FAILED( hr ) )
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{
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return NULL;
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}
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}
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DBG_ASSERT( _responseMode == RESPONSE_MODE_PARSED );
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|
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DBG_ASSERT(headerIndex < HttpHeaderResponseMaximum);
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return _ulHttpResponse.Headers.pKnownHeaders[headerIndex].pRawValue;
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}
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|
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|
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HRESULT
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|
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GetHeader(
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|
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CHAR * pszHeaderName,
|
||
|
|
STRA * pstrHeaderValue
|
||
|
|
);
|
||
|
|
|
||
|
|
VOID
|
||
|
|
ClearHeaders(
|
||
|
|
VOID
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Chunk management
|
||
|
|
//
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
AddFileHandleChunk(
|
||
|
|
HANDLE hFile,
|
||
|
|
ULONGLONG cbOffset,
|
||
|
|
ULONGLONG cbLength
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
AddMemoryChunkByReference(
|
||
|
|
PVOID pvBuffer,
|
||
|
|
DWORD cbBuffer
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
GetChunks(
|
||
|
|
OUT BUFFER *chunkBuffer,
|
||
|
|
OUT DWORD *pdwNumChunks
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
Clear(
|
||
|
|
BOOL fClearEntityOnly = FALSE
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
GenerateAutomaticHeaders(
|
||
|
|
W3_CONTEXT * pW3Context,
|
||
|
|
DWORD dwFlags
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// ULATQ send APIs
|
||
|
|
//
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
SendResponse(
|
||
|
|
W3_CONTEXT * pW3Context,
|
||
|
|
DWORD dwResponseFlags,
|
||
|
|
DWORD * pcbSent,
|
||
|
|
HTTP_LOG_FIELDS_DATA * pUlLogData
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
SendEntity(
|
||
|
|
W3_CONTEXT * pW3Context,
|
||
|
|
DWORD dwResponseFlags,
|
||
|
|
DWORD * pcbSent,
|
||
|
|
HTTP_LOG_FIELDS_DATA * pUlLogData
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
ProcessRawChunks(
|
||
|
|
W3_CONTEXT * pW3Context,
|
||
|
|
BOOL * pfFinished
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Setup and send an ISAPI response
|
||
|
|
//
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
FilterWriteClient(
|
||
|
|
W3_CONTEXT * pW3Context,
|
||
|
|
PVOID pvData,
|
||
|
|
DWORD cbData
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BuildResponseFromIsapi(
|
||
|
|
W3_CONTEXT * pW3Context,
|
||
|
|
LPSTR pszStatusLine,
|
||
|
|
LPSTR pszHeaderStream,
|
||
|
|
DWORD cchHeaderStream
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BuildStatusFromIsapi(
|
||
|
|
LPSTR pszStatusLine
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
AppendResponseHeaders(
|
||
|
|
STRA & strHeaders
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Get the raw response stream for use by raw data filter
|
||
|
|
//
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
GetRawResponseStream(
|
||
|
|
STRA * pstrResponseStream
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Status code and reason
|
||
|
|
//
|
||
|
|
|
||
|
|
VOID
|
||
|
|
SetStatus(
|
||
|
|
HTTP_STATUS & httpStatus,
|
||
|
|
HTTP_SUB_ERROR & httpSubError = HttpNoSubError
|
||
|
|
)
|
||
|
|
{
|
||
|
|
_ulHttpResponse.StatusCode = httpStatus.statusCode;
|
||
|
|
_ulHttpResponse.pReason = httpStatus.pszReason;
|
||
|
|
_ulHttpResponse.ReasonLength = httpStatus.cbReason;
|
||
|
|
_subError = httpSubError;
|
||
|
|
|
||
|
|
_fResponseTouched = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID
|
||
|
|
GetStatus(
|
||
|
|
HTTP_STATUS *phttpStatus
|
||
|
|
)
|
||
|
|
{
|
||
|
|
phttpStatus->statusCode = _ulHttpResponse.StatusCode;
|
||
|
|
phttpStatus->pszReason = _ulHttpResponse.pReason;
|
||
|
|
phttpStatus->cbReason = _ulHttpResponse.ReasonLength;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
SetStatus(
|
||
|
|
USHORT StatusCode,
|
||
|
|
STRA & strReason,
|
||
|
|
HTTP_SUB_ERROR & subError = HttpNoSubError
|
||
|
|
);
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
GetStatusLine(
|
||
|
|
STRA * pstrStatusLine
|
||
|
|
);
|
||
|
|
|
||
|
|
USHORT
|
||
|
|
QueryStatusCode(
|
||
|
|
VOID
|
||
|
|
) const
|
||
|
|
{
|
||
|
|
return _ulHttpResponse.StatusCode;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
QuerySubError(
|
||
|
|
HTTP_SUB_ERROR * pSubError
|
||
|
|
)
|
||
|
|
{
|
||
|
|
if ( pSubError == NULL )
|
||
|
|
{
|
||
|
|
DBG_ASSERT( FALSE );
|
||
|
|
return HRESULT_FROM_WIN32( ERROR_INVALID_PARAMETER );
|
||
|
|
}
|
||
|
|
|
||
|
|
pSubError->mdSubError = _subError.mdSubError;
|
||
|
|
pSubError->dwStringId = _subError.dwStringId;
|
||
|
|
return NO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID
|
||
|
|
SetSubError(
|
||
|
|
HTTP_SUB_ERROR * pSubError
|
||
|
|
)
|
||
|
|
{
|
||
|
|
if ( pSubError == NULL )
|
||
|
|
{
|
||
|
|
DBG_ASSERT( FALSE );
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
_subError.mdSubError = pSubError->mdSubError;
|
||
|
|
_subError.dwStringId = pSubError->dwStringId;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Touched state. Used to determine whether the system needs to send
|
||
|
|
// an error (500) response due to not state handler creating a response
|
||
|
|
//
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
QueryResponseTouched(
|
||
|
|
VOID
|
||
|
|
) const
|
||
|
|
{
|
||
|
|
return _fResponseTouched;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
QueryResponseSent(
|
||
|
|
VOID
|
||
|
|
) const
|
||
|
|
{
|
||
|
|
return _fResponseSent;
|
||
|
|
}
|
||
|
|
|
||
|
|
ULONGLONG
|
||
|
|
QueryContentLength(
|
||
|
|
VOID
|
||
|
|
) const
|
||
|
|
{
|
||
|
|
return _cbContentLength;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Is there any entity in this response (used by custom error logic)
|
||
|
|
//
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
QueryEntityExists(
|
||
|
|
VOID
|
||
|
|
)
|
||
|
|
{
|
||
|
|
return _cChunks > 0 && _cChunks > _cFirstEntityChunk;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|