1008 lines
28 KiB
C++
1008 lines
28 KiB
C++
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//* Microsoft Windows **
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//* Copyright(c) Microsoft Corp., 1996 **
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// the CStubBindStatusCallback implements IBindStatusCallback,
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// IHttpNegotiate. We use it to make a "fake" bind status callback
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// object when we have headers and post data we would like to apply
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// to a navigation. We supply this IBindStatusCallback object, and
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// the URL moniker asks us for headers and post data and use those in
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// the transaction.
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#include "priv.h"
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#include "sccls.h"
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#include "bindcb.h"
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CStubBindStatusCallback::CStubBindStatusCallback(LPCWSTR pwzHeaders,LPCBYTE pPostData,
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DWORD cbPostData, VARIANT_BOOL bOfflineProperty, VARIANT_BOOL bSilentProperty, BOOL bHyperlink,
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DWORD grBindFlags) : _cRef(1)
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// _pszHeaders(NULL), _hszPostData(NULL), _cbPostData(0) (don't need to zero-init)
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{
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// this is a standalone COM object; need to maintain ref count on our
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// DLL to ensure it doesn't unload
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DllAddRef();
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if (pwzHeaders) {
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_pszHeaders = StrDup(pwzHeaders); // allocate for a permanent copy
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}
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if (pPostData && cbPostData) {
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// make a copy of post data and store it
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_hszPostData = GlobalAlloc(GPTR,cbPostData);
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if (_hszPostData) {
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memcpy((LPVOID) _hszPostData,pPostData,cbPostData);
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_cbPostData = cbPostData;
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}
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}
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_bFrameIsOffline = bOfflineProperty ? TRUE : FALSE;
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_bFrameIsSilent = bSilentProperty ? TRUE : FALSE;
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_bHyperlink = bHyperlink ? TRUE : FALSE;
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_grBindFlags = grBindFlags;
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TraceMsg(TF_SHDLIFE, "ctor CStubBindStatusCallback %x", this);
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}
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HRESULT CStubBSC_CreateInstance(IUnknown* pUnkOuter, IUnknown** ppunk, LPCOBJECTINFO poi)
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{
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// aggregation checking is handled in class factory
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CStubBindStatusCallback * pbsc = new CStubBindStatusCallback(NULL, NULL, 0, FALSE, FALSE, TRUE, 0);
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if (pbsc) {
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*ppunk = (IBindStatusCallback *)pbsc;
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return S_OK;
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}
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return E_OUTOFMEMORY;
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}
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CStubBindStatusCallback::~CStubBindStatusCallback()
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{
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TraceMsg(TF_SHDLIFE, "dtor CBindStatusCallback %x", this);
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_FreeHeadersAndPostData(); // free any data we still have in this object
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// release ref count on DLL
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DllRelease();
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}
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STDMETHODIMP CStubBindStatusCallback::QueryInterface(REFIID riid,
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LPVOID * ppvObj)
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{
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if (IsEqualIID(riid, IID_IUnknown) ||
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IsEqualIID(riid, IID_IBindStatusCallback)) {
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*ppvObj = SAFECAST(this, IBindStatusCallback*);
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} else if (IsEqualIID(riid, IID_IHttpNegotiate)) {
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*ppvObj = SAFECAST(this, IHttpNegotiate*);
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} else if (IsEqualIID(riid, IID_IMarshal)) {
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*ppvObj = SAFECAST(this, IMarshal*);
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}
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else
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{
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*ppvObj = NULL;
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return E_NOINTERFACE;
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}
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AddRef(); // handing out an interface on ourselves; bump up ref count
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return S_OK;
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}
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STDMETHODIMP_(ULONG) CStubBindStatusCallback::AddRef(void)
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{
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_cRef++;
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TraceMsg(TF_SHDREF, "CStubBindStatusCallback(%x)::AddRef called, new _cRef=%d", this, _cRef);
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return _cRef;
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}
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STDMETHODIMP_(ULONG) CStubBindStatusCallback::Release(void)
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{
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_cRef--;
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TraceMsg(TF_SHDREF, "CStubBindStatusCallback(%x)::Release called, new _cRef=%d", this, _cRef);
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if (_cRef > 0)
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return _cRef;
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delete this;
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return 0;
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}
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// Implementation of IBindStatusCallback begins here
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// implements IBindStatusCallback::OnStartBinding
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STDMETHODIMP CStubBindStatusCallback::OnStartBinding(DWORD grfBSCOption,IBinding *pib)
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{
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return S_OK; // we don't care
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}
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// implements IBindStatusCallback::GetPriority
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STDMETHODIMP CStubBindStatusCallback::GetPriority(LONG *pnPriority)
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{
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*pnPriority = NORMAL_PRIORITY_CLASS;
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return S_OK;
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}
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// implements IBindStatusCallback::OnLowResource
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STDMETHODIMP CStubBindStatusCallback::OnLowResource(DWORD reserved)
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{
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return S_OK; // we don't care
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}
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// implements IBindStatusCallback::OnProgress
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STDMETHODIMP CStubBindStatusCallback::OnProgress(ULONG ulProgress,ULONG ulProgressMax,
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ULONG ulStatusCode,LPCWSTR szStatusText)
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{
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return S_OK; // we don't care
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}
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// implements IBindStatusCallback::OnStopBinding
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STDMETHODIMP CStubBindStatusCallback::OnStopBinding(HRESULT hresult,LPCWSTR szError)
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{
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return S_OK; // we don't care
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}
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// implements IBindStatusCallback::GetBindInfo
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STDMETHODIMP CStubBindStatusCallback::GetBindInfo(DWORD *grfBINDF,BINDINFO *pbindinfo)
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{
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HRESULT hr;
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if ( !grfBINDF || !pbindinfo || !pbindinfo->cbSize )
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return E_INVALIDARG;
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// call helper function to do fill in BINDINFO struct with appropriate
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// binding data
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*grfBINDF = _grBindFlags;
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hr = BuildBindInfo(grfBINDF,pbindinfo,_hszPostData,_cbPostData, _bFrameIsOffline, _bFrameIsSilent, _bHyperlink,
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(IBindStatusCallback *) this);
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return hr;
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}
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// implements IBindStatusCallback::OnDataAvailable
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STDMETHODIMP CStubBindStatusCallback::OnDataAvailable(DWORD grfBSCF, DWORD dwSize,
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FORMATETC *pformatetc, STGMEDIUM *pstgmed)
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{
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ASSERT(FALSE); // should never get called here!
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return S_OK;
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}
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STDMETHODIMP CStubBindStatusCallback::OnObjectAvailable(REFIID riid,IUnknown *punk)
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{
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return S_OK;
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}
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// Implementation of IHttpNegotiate begins here
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// implements IHttpNegotiate::BeginningTransaction
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STDMETHODIMP CStubBindStatusCallback::BeginningTransaction(LPCWSTR szURL, LPCWSTR szHeaders,
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DWORD dwReserved, LPWSTR *ppwzAdditionalHeaders)
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{
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// call helper function
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return BuildAdditionalHeaders(_pszHeaders,(LPCWSTR *) ppwzAdditionalHeaders);
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}
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// implements IHttpNegotiate::OnResponse
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STDMETHODIMP CStubBindStatusCallback::OnResponse(DWORD dwResponseCode, LPCWSTR szResponseHeaders,
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LPCWSTR szRequestHeaders, LPWSTR *pszAdditionalRequestHeaders)
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{
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return S_OK;
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}
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// Additional methods on our class begin here
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STDMETHODIMP CStubBindStatusCallback::_FreeHeadersAndPostData()
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{
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if (_pszHeaders) {
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LocalFree((HGLOBAL) _pszHeaders);
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_pszHeaders = NULL;
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}
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if (_hszPostData) {
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GlobalFree(_hszPostData);
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_hszPostData = NULL;
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_cbPostData = 0;
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}
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return S_OK;
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}
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// Method: CStubBindStatusCallback::_CanMarshalIID
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// Synopsis: Checks whether this object supports marshalling this IID.
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// Arguments: [riid] --
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// Returns:
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// History: 1-19-96 JohannP (Johann Posch) Created
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// Notes:
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inline BOOL CStubBindStatusCallback::_CanMarshalIID(REFIID riid)
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{
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// keep this in sync with the QueryInterface
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return (BOOL) (IsEqualIID(riid,IID_IBindStatusCallback) ||
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IsEqualIID(riid,IID_IUnknown) ||
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IsEqualIID(riid, IID_IHttpNegotiate));
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}
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// Method: CStubBindStatusCallback::_ValidateMarshalParams
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// Synopsis: Validates the standard set parameters that are passed into most
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// of the IMarshal methods
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// Arguments: [riid] --
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// [pvInterface] --
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// [dwDestContext] --
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// [pvDestContext] --
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// [mshlflags] --
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// Returns:
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// History: 1-19-96 JohannP (Johann Posch) Created
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// Notes:
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HRESULT CStubBindStatusCallback::_ValidateMarshalParams(REFIID riid,void *pvInterface,
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DWORD dwDestContext,void *pvDestContext,DWORD mshlflags)
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{
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HRESULT hr = NOERROR;
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if (_CanMarshalIID(riid))
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{
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// BUGBUG 10/02/96 chrisfra: ask johannp, should we be supporting future contexts
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// via CoGetStandardMarshal?
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ASSERT((dwDestContext == MSHCTX_INPROC || dwDestContext == MSHCTX_LOCAL || dwDestContext == MSHCTX_NOSHAREDMEM));
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ASSERT((mshlflags == MSHLFLAGS_NORMAL || mshlflags == MSHLFLAGS_TABLESTRONG));
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if ( (dwDestContext != MSHCTX_INPROC && dwDestContext != MSHCTX_LOCAL && dwDestContext != MSHCTX_NOSHAREDMEM)
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|| (mshlflags != MSHLFLAGS_NORMAL && mshlflags != MSHLFLAGS_TABLESTRONG))
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{
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hr = E_INVALIDARG;
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}
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}
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else
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{
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hr = E_NOINTERFACE;
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}
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return hr;
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}
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// IMarshal methods
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// Method: CStubBindStatusCallback::GetUnmarshalClass
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// Synopsis:
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// Arguments: [riid] --
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// [pvInterface] --
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// [dwDestContext] --
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// [pvDestContext] --
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// [mshlflags] --
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// [pCid] --
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// Returns:
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// History: 1-19-96 JohannP (Johann Posch) Created
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// Notes:
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STDMETHODIMP CStubBindStatusCallback::GetUnmarshalClass(REFIID riid,void *pvInterface,
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DWORD dwDestContext,void *pvDestContext,DWORD mshlflags,CLSID *pCid)
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{
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HRESULT hr;
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hr = _ValidateMarshalParams(riid, pvInterface, dwDestContext,pvDestContext, mshlflags);
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if (hr == NOERROR)
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{
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*pCid = (CLSID) CLSID_CStubBindStatusCallback;
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}
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return hr;
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}
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// Method: CStubBindStatusCallback::GetMarshalSizeMax
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// Synopsis:
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// Arguments: [void] --
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// [pvInterface] --
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// [dwDestContext] --
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// [pvDestContext] --
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// [mshlflags] --
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// [pSize] --
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// Returns:
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// History: 1-19-96 JohannP (Johann Posch) Created
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// Notes:
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STDMETHODIMP CStubBindStatusCallback::GetMarshalSizeMax(REFIID riid,void *pvInterface,
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DWORD dwDestContext,void *pvDestContext,DWORD mshlflags,DWORD *pSize)
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{
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HRESULT hr;
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if (pSize == NULL)
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{
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hr = E_INVALIDARG;
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}
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else
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{
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hr = _ValidateMarshalParams(riid, pvInterface, dwDestContext,pvDestContext, mshlflags);
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if (hr == NOERROR)
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{
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// size of fBSCBFlags, grBindFlags, postdata, headers.
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*pSize = (sizeof(DWORD) + 3 * sizeof(DWORD)) + _cbPostData ;
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if (_pszHeaders)
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*pSize += lstrlen(_pszHeaders) + 1;
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}
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}
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return hr;
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}
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// Method: CStubBindStatusCallback::MarshalInterface
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// Synopsis:
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// Arguments: [REFIID] --
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// [riid] --
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// [DWORD] --
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// [void] --
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// [DWORD] --
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// [mshlflags] --
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// Returns:
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// History: 1-19-96 JohannP (Johann Posch) Created
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// Notes:
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STDMETHODIMP CStubBindStatusCallback::MarshalInterface(IStream *pistm,REFIID riid,
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void *pvInterface,DWORD dwDestContext,
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void *pvDestContext,DWORD mshlflags)
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{
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HRESULT hr;
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DWORD cbLen;
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DWORD fBSCBFlags;
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hr = _ValidateMarshalParams(riid, pvInterface, dwDestContext,pvDestContext, mshlflags);
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if (hr != NOERROR) goto exitPoint;
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// Write _grBindFlags
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hr = pistm->Write(&_grBindFlags, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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// Write fBSCBFlags
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fBSCBFlags = (_bFrameIsOffline ? 1 : 0) + (_bFrameIsSilent ? 2 : 0) ;
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hr = pistm->Write(&fBSCBFlags, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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// Write headers
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cbLen = (_pszHeaders ? (lstrlen(_pszHeaders) + 1) * sizeof(TCHAR) : 0);
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hr = pistm->Write(&cbLen, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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if (cbLen != 0)
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{
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hr = pistm->Write(_pszHeaders, cbLen, NULL);
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if (hr != NOERROR) goto exitPoint;
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}
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// Write PostData
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hr = pistm->Write(&_cbPostData, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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if (_cbPostData != 0)
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{
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hr = pistm->Write(_hszPostData, _cbPostData, NULL);
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if (hr != NOERROR) goto exitPoint;
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}
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exitPoint:
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return hr;
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}
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// Method: CStubBindStatusCallback::UnmarshalInterface
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// Synopsis: Unmarshals an Urlmon interface out of a stream
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// Arguments: [REFIID] --
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// [void] --
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// [ppvObj] --
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// Returns:
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// History: 1-19-96 JohannP (Johann Posch) Created
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// Notes:
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STDMETHODIMP CStubBindStatusCallback::UnmarshalInterface(IStream *pistm,REFIID riid,void ** ppvObj)
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{
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HRESULT hr = NOERROR;
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DWORD fBSCBFlags;
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if (ppvObj == NULL)
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{
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hr = E_INVALIDARG;
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}
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else if (! _CanMarshalIID(riid))
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{
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*ppvObj = NULL;
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hr = E_NOINTERFACE;
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}
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else
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{
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*ppvObj = NULL;
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DWORD cbLen;
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// Free old values, if any
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_FreeHeadersAndPostData();
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// Read _grBindFlags
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hr = pistm->Read(&fBSCBFlags, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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_grBindFlags = fBSCBFlags;
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// Read m_fBSCBFlags
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hr = pistm->Read(&fBSCBFlags, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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_bFrameIsOffline = fBSCBFlags & 1 ? 1:0;
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_bFrameIsSilent = fBSCBFlags & 2 ? 1:0;
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// Read headers
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hr = pistm->Read(&cbLen, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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if (cbLen != 0)
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{
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LPTSTR pszData;
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pszData = (LPTSTR) LocalAlloc(LPTR, cbLen);
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if (pszData == NULL)
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{
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hr = E_OUTOFMEMORY;
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goto exitPoint;
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}
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hr = pistm->Read(pszData, cbLen, 0);
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if (hr != NOERROR)
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{
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LocalFree(pszData);
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goto exitPoint;
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}
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_pszHeaders = pszData;
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}
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// Read PostData
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hr = pistm->Read(&cbLen, sizeof(DWORD), NULL);
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if (hr != NOERROR) goto exitPoint;
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if (cbLen != 0)
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{
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HGLOBAL hszData;
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// POST data must be HGLOBAL because the StgMedium requires it
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// see bindcb.cpp ::GetBindInfo()
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// This will be freed by the Moniker when it's done with it.
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hszData = GlobalAlloc(GPTR,cbLen);
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if (hszData == NULL)
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{
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hr = E_OUTOFMEMORY;
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goto exitPoint;
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}
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hr = pistm->Read(hszData, cbLen, 0);
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if (hr != NOERROR)
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{
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GlobalFree(hszData);
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goto exitPoint;
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}
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_hszPostData = hszData;
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_cbPostData = cbLen;
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}
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// call QI to get the requested interface
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hr = QueryInterface(riid, ppvObj);
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}
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exitPoint:
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return hr;
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}
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STDMETHODIMP CStubBindStatusCallback::ReleaseMarshalData(IStream *pStm)
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{
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// BUGBUG: 10/02/96 chrisfra: ask Johannp if this should be seeking past EOD
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return NOERROR;
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}
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STDMETHODIMP CStubBindStatusCallback::DisconnectObject(DWORD dwReserved)
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{
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return NOERROR;
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}
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// Global helper functions
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|
|
|
|
|
BOOL fOnProxy()
|
|
/*
|
|
NAME: fOnProxy
|
|
SYNOPSIS: returns TRUE if we are have proxy enabled
|
|
*/
|
|
{
|
|
// are we on a proxy?
|
|
BOOL fRetOnProxy = FALSE;
|
|
DWORD dwValue;
|
|
DWORD dwSize = SIZEOF(dwValue);
|
|
BOOL fDefault = FALSE;
|
|
|
|
SHRegGetUSValue(TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings"),
|
|
TEXT("ProxyEnable"), NULL, (LPBYTE)&dwValue, &dwSize, FALSE, (LPVOID) &fDefault, SIZEOF(fDefault));
|
|
fRetOnProxy = dwValue;
|
|
|
|
return fRetOnProxy;
|
|
}
|
|
|
|
/*
|
|
NAME: SetBindfFlagsBasedOnAmbient
|
|
|
|
SYNOPSIS: sets BINDF_OFFLINE if ambient offline and
|
|
not-connected and sets BINDF_GETFROMCACHE_IF_NET_FAIL
|
|
if ambient offline and connected
|
|
*/
|
|
void SetBindfFlagsBasedOnAmbient(BOOL fAmbientOffline, DWORD *grfBINDF)
|
|
{
|
|
if(fAmbientOffline)
|
|
{
|
|
DWORD dwConnectedStateFlags;
|
|
|
|
// We want to set the offline bindf flag if the ambient flag is set
|
|
// and we're currently not connected.
|
|
|
|
// If either of these conditions is not true, clear the offline flag
|
|
// as mshtml may have previously set it.
|
|
if(FALSE == InternetGetConnectedState(&dwConnectedStateFlags, 0))
|
|
{
|
|
*grfBINDF |= BINDF_OFFLINEOPERATION;
|
|
*grfBINDF &= ~BINDF_GETFROMCACHE_IF_NET_FAIL;
|
|
}
|
|
else
|
|
{
|
|
*grfBINDF |= BINDF_GETFROMCACHE_IF_NET_FAIL;
|
|
*grfBINDF &= ~BINDF_OFFLINEOPERATION;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*grfBINDF &= ~BINDF_OFFLINEOPERATION;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
|
|
NAME: BuildBindInfo
|
|
|
|
SYNOPSIS: Fills out a BINDINFO structure for a URL moniker
|
|
|
|
NOTES: The point of having this in a global helper function is
|
|
so we don't have to duplicate this code in multiple
|
|
implementations of IBindStatusCallback.
|
|
|
|
The caller must pass in an IUnknown to be used as the
|
|
pUnkForRelease in the STGMEDIUM for post data. If there
|
|
is post data, this function will AddRef the passed-in
|
|
IUnknown and return it in the STGMEDIUM structure. The
|
|
caller (or someone else, if the caller hands it off) must
|
|
ultimately call Release on pbindinfo->stgmediumData.pUnkForRelease.
|
|
|
|
*/
|
|
HRESULT BuildBindInfo(DWORD *grfBINDF,BINDINFO *pbindinfo,HGLOBAL hszPostData,
|
|
DWORD cbPostData, BOOL bFrameIsOffline, BOOL bFrameIsSilent, BOOL bHyperlink, LPUNKNOWN pUnkForRelease)
|
|
{
|
|
DWORD dwConnectedStateFlags = 0;
|
|
ASSERT(grfBINDF);
|
|
ASSERT(pbindinfo);
|
|
ASSERT(pUnkForRelease);
|
|
|
|
HRESULT hres=S_OK;
|
|
|
|
if ( !grfBINDF || !pbindinfo || !pbindinfo->cbSize )
|
|
return E_INVALIDARG;
|
|
|
|
// clear BINDINFO except cbSize
|
|
ASSERT(sizeof(*pbindinfo) == pbindinfo->cbSize);
|
|
DWORD cbSize = pbindinfo->cbSize;
|
|
ZeroMemory( pbindinfo, cbSize );
|
|
pbindinfo->cbSize = cbSize;
|
|
|
|
*grfBINDF |= BINDF_ASYNCHRONOUS;
|
|
|
|
if (bHyperlink)
|
|
*grfBINDF |= BINDF_HYPERLINK;
|
|
|
|
|
|
SetBindfFlagsBasedOnAmbient(bFrameIsOffline, grfBINDF);
|
|
|
|
if(bFrameIsSilent)
|
|
*grfBINDF |= BINDF_NO_UI;
|
|
|
|
// default method is GET. Valid ones are _GET, _PUT, _POST, _CUSTOM
|
|
pbindinfo->dwBindVerb = BINDVERB_GET;
|
|
|
|
// get IE-wide UTF-8 policy by calling urlmon
|
|
DWORD dwIE = URL_ENCODING_NONE;
|
|
DWORD dwOutLen = sizeof(DWORD);
|
|
if( S_OK == UrlMkGetSessionOption(
|
|
URLMON_OPTION_URL_ENCODING,
|
|
&dwIE,
|
|
sizeof(DWORD),
|
|
&dwOutLen,
|
|
NULL ) )
|
|
{
|
|
if( dwIE == URL_ENCODING_ENABLE_UTF8 )
|
|
{
|
|
pbindinfo->dwOptions |= BINDINFO_OPTIONS_ENABLE_UTF8;
|
|
}
|
|
else
|
|
if( dwIE == URL_ENCODING_DISABLE_UTF8 )
|
|
{
|
|
pbindinfo->dwOptions |= BINDINFO_OPTIONS_DISABLE_UTF8;
|
|
}
|
|
}
|
|
|
|
// if we have postdata set, then we assume this is a POST verb
|
|
|
|
if (hszPostData)
|
|
{
|
|
pbindinfo->dwBindVerb = BINDVERB_POST;
|
|
pbindinfo->stgmedData.tymed = TYMED_HGLOBAL;
|
|
pbindinfo->stgmedData.hGlobal = hszPostData;
|
|
// this count should *NOT* include the terminating NULL
|
|
pbindinfo->cbstgmedData = cbPostData;
|
|
pbindinfo->stgmedData.pUnkForRelease = pUnkForRelease;
|
|
// addref on the IUnknown that's holding onto this data so
|
|
// it knows to stick around; caller must call Release
|
|
// on the pUnkForRelease when done.
|
|
pUnkForRelease->AddRef();
|
|
|
|
// We will still cache the response, but we do not want to
|
|
// read from cache for a POST transaction. This will keep us
|
|
// from reading from the cache.
|
|
*grfBINDF |= BINDF_GETNEWESTVERSION | BINDF_CONTAINER_NOWRITECACHE;
|
|
} else {
|
|
ASSERT(pbindinfo->stgmedData.tymed == TYMED_NULL);
|
|
ASSERT(pbindinfo->stgmedData.hGlobal == NULL);
|
|
ASSERT(pbindinfo->stgmedData.pUnkForRelease == NULL);
|
|
}
|
|
|
|
return hres;
|
|
}
|
|
|
|
#define HDR_LANGUAGE TEXT("Accept-Language:")
|
|
#define CRLF TEXT("\x0D\x0A")
|
|
#define HDR_LANGUAGE_CRLF TEXT("Accept-Language: %s\x0D\x0A")
|
|
|
|
/*
|
|
|
|
NAME: BuildAdditionalHeaders
|
|
|
|
SYNOPSIS: Builds HTTP headers to be given to URL moniker
|
|
|
|
ENTRY: pszOurExtraHeaders - headers that we explicitly want to add
|
|
*ppwzCombinedHeadersOut - on exit, filled in with
|
|
buffer of default headers plus pszOurExtraHeaders.
|
|
|
|
NOTES: The point of having this in a global helper function is
|
|
so we don't have to duplicate this code in multiple
|
|
implementations of IBindStatusCallback.
|
|
|
|
The caller must free *ppwzCombinedHeaders by passing
|
|
to URLMON, or calling OleFree
|
|
|
|
*/
|
|
HRESULT BuildAdditionalHeaders(LPCTSTR pszOurExtraHeaders,LPCWSTR * ppwzCombinedHeadersOut)
|
|
{
|
|
|
|
TCHAR szLanguage[80]; // BUGBUG: what limit on language?
|
|
DWORD dwLanguage = ARRAYSIZE(szLanguage);
|
|
static const TCHAR hdr_language[] = HDR_LANGUAGE_CRLF;
|
|
TCHAR szHeader[ARRAYSIZE(hdr_language) + ARRAYSIZE(szLanguage)]; // NOTE format string length > wnsprintf length
|
|
int cchHeaders = 0;
|
|
int cchAddedHeaders = 1; // implied '\0'
|
|
HRESULT hres = NOERROR;
|
|
|
|
if (!ppwzCombinedHeadersOut)
|
|
return E_FAIL;
|
|
|
|
*ppwzCombinedHeadersOut = NULL;
|
|
|
|
// If there is no language in the registry, *WE DO NOT SEND THIS HEADER*
|
|
|
|
// S_OK means szLanguage filled in and returned
|
|
// S_FALSE means call succeeded, but there was no language set
|
|
// E_* is an error
|
|
// We treat S_FALSE and E_* the same, no language header sent.
|
|
if (GetAcceptLanguages(szLanguage, &dwLanguage) == S_OK)
|
|
{
|
|
wnsprintf(szHeader, ARRAYSIZE(szHeader), hdr_language, szLanguage);
|
|
cchHeaders = lstrlen(szHeader) + 1;
|
|
}
|
|
|
|
if (pszOurExtraHeaders)
|
|
{
|
|
cchAddedHeaders = lstrlen(pszOurExtraHeaders) + 1;
|
|
}
|
|
|
|
// If we have headers we added or were sent in, we need to Wide 'em and
|
|
// give 'em back
|
|
if (cchAddedHeaders > 1 || cchHeaders > 0)
|
|
{
|
|
WCHAR *pwzHeadersForUrlmon = (WCHAR *)CoTaskMemAlloc(sizeof(WCHAR) * (cchHeaders + cchAddedHeaders - 1));
|
|
if (pwzHeadersForUrlmon)
|
|
{
|
|
if (cchHeaders)
|
|
{
|
|
StrCpyN(pwzHeadersForUrlmon, szHeader, cchHeaders);
|
|
}
|
|
if (pszOurExtraHeaders)
|
|
{
|
|
if (cchHeaders)
|
|
{
|
|
StrCpyN(pwzHeadersForUrlmon + cchHeaders - 1,
|
|
pszOurExtraHeaders, cchAddedHeaders);
|
|
}
|
|
else
|
|
{
|
|
StrCpyN(pwzHeadersForUrlmon, pszOurExtraHeaders, cchAddedHeaders - 1);
|
|
}
|
|
}
|
|
if (cchHeaders || pszOurExtraHeaders)
|
|
*ppwzCombinedHeadersOut = pwzHeadersForUrlmon;
|
|
}
|
|
else
|
|
hres = E_OUTOFMEMORY;
|
|
}
|
|
else
|
|
hres = pszOurExtraHeaders == NULL ? S_OK : E_FAIL;
|
|
|
|
return hres;
|
|
}
|
|
|
|
/*
|
|
|
|
NAME: GetHeadersAndPostData
|
|
|
|
SYNOPSIS: Gets HTTP headers and post data from an IBindStatusCallback
|
|
|
|
ENTRY: IBindStatusCallback - object to ask for headers and post data
|
|
ppszHeaders - on exit, filled in with pointer to headers,
|
|
or NULL if none
|
|
pstgPostData - pointer to a STGMEDIUM to be filled in with post
|
|
data, if any.
|
|
|
|
|
|
NOTES: The caller is responsible for:
|
|
- calling LocalFree on *ppszHeaders when done with them
|
|
- calling ReleaseStgMedium on pstgPostData when done
|
|
with it
|
|
|
|
*/
|
|
HRESULT GetHeadersAndPostData(IBindStatusCallback * pBindStatusCallback,
|
|
LPTSTR * ppszHeaders, STGMEDIUM * pstgPostData, DWORD * pdwPostData, BOOL* pfIsPost)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
ASSERT(pBindStatusCallback);
|
|
ASSERT(ppszHeaders);
|
|
ASSERT(pstgPostData);
|
|
ASSERT(pdwPostData);
|
|
|
|
// clear the out parameters
|
|
*ppszHeaders = NULL;
|
|
|
|
DWORD grfBINDF;
|
|
IHttpNegotiate *pinegotiate;
|
|
BINDINFO binfo;
|
|
binfo.cbSize = sizeof(binfo);
|
|
ZeroMemory(pstgPostData,sizeof(*pstgPostData));
|
|
*pdwPostData = 0;
|
|
|
|
hr=pBindStatusCallback->GetBindInfo(&grfBINDF, &binfo);
|
|
|
|
if (SUCCEEDED(hr)) {
|
|
// copy STGMEDIUM with post data to caller
|
|
*pstgPostData = binfo.stgmedData;
|
|
*pdwPostData = binfo.cbstgmedData;
|
|
|
|
// clear these so ReleaseBindInfo won't wack it since we are giving it to the caller
|
|
ZeroMemory(&binfo.stgmedData, sizeof(STGMEDIUM));
|
|
binfo.cbstgmedData = 0;
|
|
|
|
if (pfIsPost)
|
|
{
|
|
if(*pdwPostData)
|
|
*pfIsPost = TRUE;
|
|
else
|
|
*pfIsPost = FALSE;
|
|
}
|
|
|
|
hr = pBindStatusCallback->QueryInterface(IID_IHttpNegotiate, (LPVOID *)&pinegotiate);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
WCHAR *pwzAdditionalHeaders = NULL;
|
|
WCHAR wzNull[1];
|
|
|
|
wzNull[0] = 0;
|
|
hr=pinegotiate->BeginningTransaction(wzNull, wzNull, 0, &pwzAdditionalHeaders);
|
|
if (SUCCEEDED(hr) && pwzAdditionalHeaders)
|
|
{
|
|
DWORD cchHeaders;
|
|
|
|
cchHeaders = lstrlen(pwzAdditionalHeaders) + 1;
|
|
|
|
// they should *NEVER* be specifying more than a few hundred
|
|
// bytes or they're going to fail with a number of HTTP servers!
|
|
|
|
LPTSTR pszHeaders = (TCHAR *)LocalAlloc(LPTR, cchHeaders*sizeof(TCHAR));
|
|
if (pszHeaders)
|
|
{
|
|
LPTSTR pszNext;
|
|
LPTSTR pszLine;
|
|
LPTSTR pszLast;
|
|
|
|
StrCpyN(pszHeaders, pwzAdditionalHeaders, cchHeaders);
|
|
pszLine = pszHeaders;
|
|
pszLast = pszHeaders + lstrlen(pszHeaders);
|
|
while (pszLine < pszLast)
|
|
{
|
|
pszNext = StrStrI(pszLine, CRLF);
|
|
if (pszNext == NULL)
|
|
{
|
|
// All Headers must be terminated in CRLF!
|
|
pszLine[0] = '\0';
|
|
break;
|
|
}
|
|
pszNext += 2;
|
|
if (!StrCmpNI(pszLine,HDR_LANGUAGE,16))
|
|
{
|
|
MoveMemory(pszLine, pszNext, ((pszLast - pszNext) + 1)*sizeof(TCHAR));
|
|
break;
|
|
}
|
|
pszLine = pszNext;
|
|
}
|
|
// Don't include empty headers
|
|
if (pszHeaders[0] == '\0')
|
|
{
|
|
LocalFree(pszHeaders);
|
|
pszHeaders = NULL;
|
|
}
|
|
}
|
|
OleFree(pwzAdditionalHeaders);
|
|
*ppszHeaders = pszHeaders;
|
|
}
|
|
pinegotiate->Release();
|
|
}
|
|
|
|
ReleaseBindInfo(&binfo);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
/*
|
|
|
|
NAME: GetTopLevelBindStatusCallback
|
|
|
|
ENTRY: psp - IServiceProvider of ShellBrowser container to query
|
|
ppBindStatusCallback - if successful, filled in with
|
|
an IBindStatusCallback on exit
|
|
|
|
SYNOPSIS: Gets the IBindStatusCallback associated with this top
|
|
level browser. This works from within nested frames.
|
|
|
|
*/
|
|
HRESULT GetTopLevelBindStatusCallback(IServiceProvider * psp,
|
|
IBindStatusCallback ** ppBindStatusCallback)
|
|
{
|
|
HRESULT hr;
|
|
|
|
IHlinkFrame *phf;
|
|
hr = psp->QueryService(SID_SHlinkFrame, IID_IHlinkFrame, (LPVOID*)&phf);
|
|
if (SUCCEEDED(hr)) {
|
|
hr = IUnknown_QueryService(phf, IID_IHlinkFrame, IID_IBindStatusCallback, (LPVOID*)ppBindStatusCallback);
|
|
phf->Release();
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
/*
|
|
|
|
NAME: GetTopLevelPendingBindStatusCallback
|
|
|
|
ENTRY: psp - IServiceProvider of ShellBrowser container to query
|
|
ppBindStatusCallback - if successful, filled in with
|
|
an IBindStatusCallback on exit
|
|
|
|
SYNOPSIS: Gets the IBindStatusCallback associated with this top
|
|
level browser. This works from within nested frames.
|
|
|
|
*/
|
|
HRESULT GetTopLevelPendingBindStatusCallback(IServiceProvider * psp,
|
|
IBindStatusCallback ** ppBindStatusCallback)
|
|
{
|
|
HRESULT hr;
|
|
|
|
IHlinkFrame *phf;
|
|
hr = psp->QueryService(SID_SHlinkFrame, IID_IHlinkFrame, (LPVOID*)&phf);
|
|
if (SUCCEEDED(hr)) {
|
|
hr = IUnknown_QueryService(phf, SID_PendingBindStatusCallback, IID_IBindStatusCallback, (LPVOID*)ppBindStatusCallback);
|
|
phf->Release();
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
// Global helper function to create a CStubBindStatusCallback
|
|
HRESULT CStubBindStatusCallback_Create(LPCWSTR pwzHeaders, LPCBYTE pPostData,
|
|
DWORD cbPostData, VARIANT_BOOL bFrameIsOffline, VARIANT_BOOL bFrameIsSilent, BOOL bHyperlink,
|
|
DWORD grBindFlags,
|
|
CStubBindStatusCallback ** ppBindStatusCallback)
|
|
{
|
|
ASSERT(ppBindStatusCallback);
|
|
|
|
*ppBindStatusCallback = new CStubBindStatusCallback(pwzHeaders,pPostData,
|
|
cbPostData, bFrameIsOffline, bFrameIsSilent, bHyperlink, grBindFlags);
|
|
|
|
return (*ppBindStatusCallback ? S_OK : E_OUTOFMEMORY);
|
|
}
|