利用VC得到当前IE的Cookie

最新推荐文章于 2019-05-20 10:16:34 发布

原创最新推荐文章于 2019-05-20 10:16:34 发布 · 1.3k 阅读

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本文介绍了一种使用COM接口从已打开的Internet Explorer窗口中获取网页Cookies的方法。通过创建ShellWindows实例并遍历所有打开的IE窗口，可以进一步获取到每个窗口对应的WebBrowser对象，并最终调用其Document属性来得到IHTMLDocument2接口，进而读取Cookies。

// by sojoo
#define UNICODE
#define _UNICODE

#include < tchar.h >
#include < stdio.h >
#include < Windows.h >
#include < mshtml.h >
#include < ExDisp.h >

int main( int argc, char * argv[])
{
  HRESULT hr;
  CoInitialize(NULL);

  IShellWindows * lpShellWindows;

  hr = CoCreateInstance(CLSID_ShellWindows, NULL, 1 , IID_IShellWindows, (PVOID * ) & lpShellWindows);
   if ( hr == S_OK )
  {
    IDispatch * lpDispatch;
     long nCount;

    lpShellWindows -> get_Count( & nCount);
     for ( long i = 0 ; i < nCount; i ++ )
    {
      VARIANT varIndex;

      varIndex.vt = VT_I4;
      varIndex.intVal = i;

      hr = lpShellWindows -> Item(varIndex, & lpDispatch);
       if ( hr == S_OK )
      {
        IWebBrowser2 * lpWebBrowser2;

        hr = lpDispatch -> QueryInterface(IID_IWebBrowser2, (PVOID * ) & lpWebBrowser2);
         if ( hr == S_OK )
        {
          IDispatch * lpDispatch;

           // lpWebBrowser2->get_HWND();

          hr = lpWebBrowser2 -> get_Document( & lpDispatch);
           if ( hr == S_OK )
          {
            IHTMLDocument2 * lpDocument2;

            hr = lpDispatch -> QueryInterface(IID_IHTMLDocument2, (PVOID * ) & lpDocument2);
             if ( hr == S_OK )
            {
              BSTR bstrCookie;

              hr = lpDocument2 -> get_cookie( & bstrCookie);
               if ( hr == S_OK )
              {
                MessageBox(NULL, bstrCookie, NULL, 0 );
                SysFreeString(bstrCookie);
              }

              lpDocument2 -> Release();
            }

            lpDispatch -> Release();
          }

          lpWebBrowser2 -> Release();
        }

        lpDispatch -> Release();
      }
    }

    lpShellWindows -> Release();
  }

  CoUninitialize();
   return 0 ;
}