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FriendFeedDetermining URL from ActiveX Control
Posted
by Ravishankar.R Ravishankar.R
on January 14th, 2001
Introduction
I had to develop ActiveX controls for web based applications. Some of these controls were manipulating the local resources. To disable malicious use of these control by others through scripting, I had to implement security check. I decided to implement a simple security scheme where I determine the url in which the control is hosted. If the url comes from our domain, I enabled its functionality.
I used GetMoniker method of IOleClientSite Interface.The IMoniker interface has GetDisplayName() method,
which returns a user-readable representation of the moniker.
Code:
HRESULT hrResult = S_FALSE; IOleClientSite *pClientSite = NULL; IMoniker* pMoniker = NULL; LPOLESTR sDisplayName; // If using ATL to develop, use the m_spClientSite data // member of CComControl class. // If using MFC, use the following code: // (member function of COleControl class // - don't forget to call release) // pClientSite = GetClientSite(); hrResult = m_spClientSite->GetMoniker(OLEGETMONIKER_TEMPFORUSER, OLEWHICHMK_CONTAINER, &pMoniker); if(SUCCEEDED(hrResult)) { hrResult = pMoniker->GetDisplayName(NULL, NULL, &sDisplayName); pMoniker->Release(); } //TODO : relevant processing with sDisplayName and //free sDisplayName using SysFreeString()
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