592 lines
17 KiB
C++
592 lines
17 KiB
C++
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// webgate.cpp : Implementation of CWebGate
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#include "stdafx.h"
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#include "icwhelp.h"
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#include "webgate.h"
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#include "appdefs.h"
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#include <wininet.h>
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#define MAX_DOWNLOAD_BLOCK 1024
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extern BOOL MinimizeRNAWindowEx();
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// ===========================================================================
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// CWebGateBindStatusCallback Definition
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//
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// This class will be use to indicate download progress
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//
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// ===========================================================================
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class CWebGateBindStatusCallback : public IBindStatusCallback
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{
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public:
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// IUnknown methods
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STDMETHODIMP QueryInterface(REFIID riid,void ** ppv);
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STDMETHODIMP_(ULONG) AddRef() { return m_cRef++; }
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STDMETHODIMP_(ULONG) Release() { if (--m_cRef == 0) { delete this; return 0; } return m_cRef; }
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// IBindStatusCallback methods
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STDMETHODIMP OnStartBinding(DWORD dwReserved, IBinding* pbinding);
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STDMETHODIMP GetPriority(LONG* pnPriority);
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STDMETHODIMP OnLowResource(DWORD dwReserved);
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STDMETHODIMP OnProgress(ULONG ulProgress, ULONG ulProgressMax, ULONG ulStatusCode,
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LPCWSTR pwzStatusText);
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STDMETHODIMP OnStopBinding(HRESULT hrResult, LPCWSTR szError);
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STDMETHODIMP GetBindInfo(DWORD* pgrfBINDF, BINDINFO* pbindinfo);
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STDMETHODIMP OnDataAvailable(DWORD grfBSCF, DWORD dwSize, FORMATETC *pfmtetc,
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STGMEDIUM* pstgmed);
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STDMETHODIMP OnObjectAvailable(REFIID riid, IUnknown* punk);
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// constructors/destructors
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CWebGateBindStatusCallback(CWebGate * lpWebGate);
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~CWebGateBindStatusCallback();
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// data members
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BOOL m_bDoneNotification;
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DWORD m_cRef;
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IBinding* m_pbinding;
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IStream* m_pstm;
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DWORD m_cbOld;
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CWebGate *m_lpWebGate;
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private:
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void ProcessBuffer(void);
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};
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UINT g_nICWFileCount = 0;
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BOOL CALLBACK DisconnectDlgProc (HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
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VOID CALLBACK IdleTimerProc (HWND hWnd, UINT uMsg, UINT idEvent, DWORD dwTime);
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// ===========================================================================
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// CBindStatusCallback Implementation
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// ===========================================================================
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// ---------------------------------------------------------------------------
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// %%Function: CBindStatusCallback::CBindStatusCallback
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// ---------------------------------------------------------------------------
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CWebGateBindStatusCallback::CWebGateBindStatusCallback
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(
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CWebGate *lpWebGate
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)
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{
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m_pbinding = NULL;
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m_pstm = NULL;
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m_cRef = 1;
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m_cbOld = 0;
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m_lpWebGate = lpWebGate;
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} // CWebGateBindStatusCallback
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::~CWebGateBindStatusCallback
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// ---------------------------------------------------------------------------
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CWebGateBindStatusCallback::~CWebGateBindStatusCallback()
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{
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} // ~CWebGateBindStatusCallback
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::QueryInterface
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::QueryInterface
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(
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REFIID riid,
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void** ppv
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)
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{
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*ppv = NULL;
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if (riid==IID_IUnknown || riid==IID_IBindStatusCallback)
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{
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*ppv = this;
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AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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} // CWebGateBindStatusCallback::QueryInterface
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::OnStartBinding
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::OnStartBinding
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(
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DWORD dwReserved,
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IBinding* pbinding
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)
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{
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if (m_pbinding != NULL)
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m_pbinding->Release();
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m_pbinding = pbinding;
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if (m_pbinding != NULL)
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{
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m_pbinding->AddRef();
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}
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return S_OK;
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} // CWebGateBindStatusCallback::OnStartBinding
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::GetPriority
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::GetPriority
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(
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LONG* pnPriority
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)
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{
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return E_NOTIMPL;
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} // CWebGateBindStatusCallback::GetPriority
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::OnLowResource
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::OnLowResource
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(
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DWORD dwReserved
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)
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{
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return E_NOTIMPL;
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} // CWebGateBindStatusCallback::OnLowResource
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::OnProgress
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::OnProgress
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(
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ULONG ulProgress,
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ULONG ulProgressMax,
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ULONG ulStatusCode,
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LPCWSTR szStatusText
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)
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{
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// If no progress, check for valid connection
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if (0 == ulProgress)
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m_lpWebGate->Fire_WebGateDownloadProgress(TRUE);
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return(NOERROR);
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} // CWebGateBindStatusCallback::OnProgress
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void CWebGateBindStatusCallback::ProcessBuffer(void)
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{
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m_bDoneNotification = TRUE;
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if (m_pstm)
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m_pstm->Release();
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m_lpWebGate->m_cbBuffer = m_cbOld;
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// Create a file, and copy the donwloaded content into it
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if (m_lpWebGate->m_bKeepFile)
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{
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TCHAR szTempFileFullName[MAX_PATH];
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TCHAR szTempFileName[MAX_PATH];
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HANDLE hFile;
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DWORD cbRet;
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// Make sure it is an htm extension, otherwise, IE will promp for download
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GetTempPath(MAX_PATH, szTempFileFullName);
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wsprintf( szTempFileName, TEXT("ICW%x.htm"), g_nICWFileCount++);
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lstrcat(szTempFileFullName, szTempFileName);
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hFile = CreateFile(szTempFileFullName,
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GENERIC_WRITE,
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0,
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NULL,
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OPEN_ALWAYS,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if (hFile)
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{
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WriteFile(hFile, m_lpWebGate->m_lpdata, m_cbOld, (LPDWORD)&cbRet, NULL);
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CloseHandle(hFile);
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}
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// Copy the created file name into the webgate control
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m_lpWebGate->m_bstrCacheFileName = A2BSTR(szTempFileFullName);
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}
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// If the WebGate object has a complete event, then signal it, otherwise
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// fire an event
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if (m_lpWebGate->m_hEventComplete)
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SetEvent(m_lpWebGate->m_hEventComplete);
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else
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{
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// Notify the caller that we are done
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m_lpWebGate->Fire_WebGateDownloadComplete(TRUE);
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}
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}
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::OnStopBinding
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::OnStopBinding
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(
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HRESULT hrStatus,
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LPCWSTR pszError
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)
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{
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if (m_pbinding)
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{
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m_pbinding->Release();
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m_pbinding = NULL;
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}
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if (!m_bDoneNotification)
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{
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ProcessBuffer();
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}
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m_lpWebGate->Fire_WebGateDownloadProgress(TRUE);
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return S_OK;
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} // CWebGateBindStatusCallback::OnStopBinding
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::GetBindInfo
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::GetBindInfo
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(
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DWORD* pgrfBINDF,
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BINDINFO* pbindInfo
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)
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{
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*pgrfBINDF = BINDF_ASYNCHRONOUS | BINDF_ASYNCSTORAGE |
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BINDF_PULLDATA | BINDF_GETNEWESTVERSION |
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BINDF_NOWRITECACHE;
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pbindInfo->cbSize = sizeof(BINDINFO);
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pbindInfo->szExtraInfo = NULL;
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memset(&pbindInfo->stgmedData, 0, sizeof(STGMEDIUM));
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pbindInfo->grfBindInfoF = 0;
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pbindInfo->dwBindVerb = BINDVERB_GET;
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pbindInfo->szCustomVerb = NULL;
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return S_OK;
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} // CWebGateBindStatusCallback::GetBindInfo
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::OnDataAvailable
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::OnDataAvailable
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(
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DWORD grfBSCF,
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DWORD dwSize,
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FORMATETC* pfmtetc,
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STGMEDIUM* pstgmed
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)
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{
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HRESULT hr = E_FAIL; //don't assume success
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// verify we have a read buffer
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if (!m_lpWebGate->m_lpdata)
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return(S_FALSE);
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// Get the Stream passed
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if (BSCF_FIRSTDATANOTIFICATION & grfBSCF)
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{
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m_bDoneNotification = FALSE;
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if (!m_pstm && pstgmed->tymed == TYMED_ISTREAM)
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{
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m_pstm = pstgmed->pstm;
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if (m_pstm)
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m_pstm->AddRef();
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}
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}
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// If there is some data to be read then go ahead and read them
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if (m_pstm && dwSize)
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{
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DWORD dwActuallyRead = 0; // Placeholder for amount read during this pull
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do
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{
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if (MAX_DOWNLOAD_BLOCK + m_cbOld > m_lpWebGate->m_cbdata)
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{
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m_lpWebGate->m_cbdata += READ_BUFFER_SIZE;
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// ::MessageBox(NULL, TEXT("reallov DumpBufferToFile"), TEXT("E R R O R"), MB_OK);
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LPSTR pBuffer = (LPSTR)GlobalReAllocPtr(m_lpWebGate->m_lpdata, m_lpWebGate->m_cbdata , GHND);
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if (pBuffer)
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m_lpWebGate->m_lpdata = pBuffer;
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else
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return S_FALSE;
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}
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// Read what we can
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hr = m_pstm->Read(m_lpWebGate->m_lpdata+m_cbOld, MAX_DOWNLOAD_BLOCK, &dwActuallyRead);
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// keep track of the running total
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m_cbOld += dwActuallyRead;
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} while (hr == E_PENDING || hr != S_FALSE);
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}
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if (BSCF_LASTDATANOTIFICATION & grfBSCF)
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{
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if (!m_bDoneNotification)
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{
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ProcessBuffer();
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}
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}
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return S_OK;
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} // CWebGateBindStatusCallback::OnDataAvailable
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// ---------------------------------------------------------------------------
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// %%Function: CWebGateBindStatusCallback::OnObjectAvailable
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// ---------------------------------------------------------------------------
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STDMETHODIMP CWebGateBindStatusCallback::OnObjectAvailable
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(
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REFIID riid,
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IUnknown* punk
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)
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{
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return E_NOTIMPL;
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} // CWebGateBindStatusCallback::OnObjectAvailable
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/////////////////////////////////////////////////////////////////////////////
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// CWebGate
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HRESULT CWebGate::OnDraw(ATL_DRAWINFO& di)
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{
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return S_OK;
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}
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STDMETHODIMP CWebGate::put_Path(BSTR newVal)
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{
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// TODO: Add your implementation code here
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USES_CONVERSION;
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m_bstrPath = newVal;
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return S_OK;
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}
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STDMETHODIMP CWebGate::put_FormData(BSTR newVal)
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{
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// TODO: Add your implementation code here
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USES_CONVERSION;
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m_bstrFormData = newVal;
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return S_OK;
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}
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STDMETHODIMP CWebGate::FetchPage(DWORD dwKeepFile, DWORD dwDoWait, BOOL *pbRetVal)
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{
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USES_CONVERSION;
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IStream *pstm = NULL;
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HRESULT hr;
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// Empty the buffer.
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m_bstrBuffer.Empty();
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// Clear the cache file name
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m_bstrCacheFileName.Empty();
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// Release the binding context callback
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if (m_pbsc && m_pbc)
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{
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RevokeBindStatusCallback(m_pbc, m_pbsc);
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m_pbsc->Release();
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m_pbsc = 0;
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}
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// Release the binding context
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if (m_pbc)
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{
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m_pbc->Release();
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m_pbc = 0;
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}
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// release the monikor
|
||
|
|
if (m_pmk)
|
||
|
|
{
|
||
|
|
m_pmk->Release();
|
||
|
|
m_pmk = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
*pbRetVal = FALSE;
|
||
|
|
|
||
|
|
if (dwDoWait)
|
||
|
|
m_hEventComplete = CreateEvent(NULL, TRUE, FALSE, NULL);
|
||
|
|
|
||
|
|
m_bKeepFile = (BOOL) dwKeepFile;
|
||
|
|
hr = CreateURLMoniker(NULL, m_bstrPath, &m_pmk);
|
||
|
|
if (FAILED(hr))
|
||
|
|
goto LErrExit;
|
||
|
|
|
||
|
|
m_pbsc = new CWebGateBindStatusCallback(this);
|
||
|
|
if (m_pbsc == NULL)
|
||
|
|
{
|
||
|
|
hr = E_OUTOFMEMORY;
|
||
|
|
goto LErrExit;
|
||
|
|
}
|
||
|
|
|
||
|
|
hr = CreateBindCtx(0, &m_pbc);
|
||
|
|
if (FAILED(hr))
|
||
|
|
goto LErrExit;
|
||
|
|
|
||
|
|
hr = RegisterBindStatusCallback(m_pbc,
|
||
|
|
m_pbsc,
|
||
|
|
0,
|
||
|
|
0L);
|
||
|
|
if (FAILED(hr))
|
||
|
|
goto LErrExit;
|
||
|
|
|
||
|
|
hr = m_pmk->BindToStorage(m_pbc, 0, IID_IStream, (void**)&pstm);
|
||
|
|
if (FAILED(hr))
|
||
|
|
goto LErrExit;
|
||
|
|
|
||
|
|
// If we were requested to wait, then we wait for the m_hEventComplete to be
|
||
|
|
// signaled
|
||
|
|
if (dwDoWait && m_hEventComplete)
|
||
|
|
{
|
||
|
|
MSG msg;
|
||
|
|
BOOL bGotFile = FALSE;
|
||
|
|
DWORD dwRetCode;
|
||
|
|
HANDLE hEventList[1];
|
||
|
|
hEventList[0] = m_hEventComplete;
|
||
|
|
|
||
|
|
while (TRUE)
|
||
|
|
{
|
||
|
|
// We will wait on window messages and also the named event.
|
||
|
|
dwRetCode = MsgWaitForMultipleObjects(1,
|
||
|
|
&hEventList[0],
|
||
|
|
FALSE,
|
||
|
|
300000, // 5 minutes
|
||
|
|
QS_ALLINPUT);
|
||
|
|
|
||
|
|
// Determine why we came out of MsgWaitForMultipleObjects(). If
|
||
|
|
// we timed out then let's do some TrialWatcher work. Otherwise
|
||
|
|
// process the message that woke us up.
|
||
|
|
if (WAIT_TIMEOUT == dwRetCode)
|
||
|
|
{
|
||
|
|
bGotFile = FALSE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else if (WAIT_OBJECT_0 == dwRetCode)
|
||
|
|
{
|
||
|
|
bGotFile = TRUE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else if (WAIT_OBJECT_0 + 1 == dwRetCode)
|
||
|
|
{
|
||
|
|
// 0 is returned if no message retrieved.
|
||
|
|
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
|
||
|
|
{
|
||
|
|
if (WM_QUIT == msg.message)
|
||
|
|
{
|
||
|
|
bGotFile = FALSE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
TranslateMessage(&msg);
|
||
|
|
DispatchMessage(&msg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
*pbRetVal = bGotFile;
|
||
|
|
CloseHandle(m_hEventComplete);
|
||
|
|
m_hEventComplete = 0;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
*pbRetVal = TRUE;
|
||
|
|
}
|
||
|
|
return S_OK;
|
||
|
|
|
||
|
|
LErrExit:
|
||
|
|
if (m_pbc != NULL)
|
||
|
|
{
|
||
|
|
m_pbc->Release();
|
||
|
|
m_pbc = NULL;
|
||
|
|
}
|
||
|
|
if (m_pbsc != NULL)
|
||
|
|
{
|
||
|
|
m_pbsc->Release();
|
||
|
|
m_pbsc = NULL;
|
||
|
|
}
|
||
|
|
if (m_pmk != NULL)
|
||
|
|
{
|
||
|
|
m_pmk->Release();
|
||
|
|
m_pmk = NULL;
|
||
|
|
}
|
||
|
|
if (pstm)
|
||
|
|
{
|
||
|
|
pstm->Release();
|
||
|
|
pstm = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
*pbRetVal = FALSE;
|
||
|
|
return S_OK;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
STDMETHODIMP CWebGate::get_Buffer(BSTR * pVal)
|
||
|
|
{
|
||
|
|
if (pVal == NULL)
|
||
|
|
return E_POINTER;
|
||
|
|
*pVal = m_bstrBuffer.Copy();
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP CWebGate::DumpBufferToFile(BSTR *pFileName, BOOL *pbRetVal)
|
||
|
|
{
|
||
|
|
USES_CONVERSION;
|
||
|
|
|
||
|
|
TCHAR szTempFileFullName[MAX_PATH];
|
||
|
|
TCHAR szTempFileName[MAX_PATH];
|
||
|
|
DWORD cbRet;
|
||
|
|
HANDLE hFile;
|
||
|
|
|
||
|
|
if (pFileName == NULL)
|
||
|
|
return(E_POINTER);
|
||
|
|
|
||
|
|
// Delete the previous temp file it it exists
|
||
|
|
if (m_bstrDumpFileName)
|
||
|
|
{
|
||
|
|
DeleteFile(OLE2A(m_bstrDumpFileName));
|
||
|
|
m_bstrDumpFileName.Empty();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure it is an htm extension, otherwise, IE will promp for download
|
||
|
|
GetTempPath(MAX_PATH, szTempFileFullName);
|
||
|
|
wsprintf( szTempFileName, TEXT("ICW%x.htm"), g_nICWFileCount++);
|
||
|
|
lstrcat(szTempFileFullName, szTempFileName);
|
||
|
|
|
||
|
|
hFile = CreateFile(szTempFileFullName,
|
||
|
|
GENERIC_WRITE,
|
||
|
|
0,
|
||
|
|
NULL,
|
||
|
|
OPEN_ALWAYS,
|
||
|
|
FILE_ATTRIBUTE_NORMAL,
|
||
|
|
NULL);
|
||
|
|
if (hFile)
|
||
|
|
{
|
||
|
|
WriteFile(hFile, m_lpdata, m_cbBuffer, (LPDWORD)&cbRet, NULL);
|
||
|
|
CloseHandle(hFile);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Copy the created file name into the webgate control
|
||
|
|
m_bstrDumpFileName = A2BSTR(szTempFileFullName);
|
||
|
|
*pFileName = m_bstrDumpFileName.Copy();
|
||
|
|
|
||
|
|
*pbRetVal = TRUE;
|
||
|
|
|
||
|
|
MinimizeRNAWindowEx();
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP CWebGate::get_DownloadFname(BSTR *pVal)
|
||
|
|
{
|
||
|
|
if (pVal == NULL)
|
||
|
|
return(E_POINTER);
|
||
|
|
|
||
|
|
*pVal = m_bstrCacheFileName.Copy();
|
||
|
|
return(S_OK);
|
||
|
|
}
|