private void Dispose(bool disposing)
{
if (dwUnionChoice == UnionChoice.File)
{
WintrustFileInfo info = new WintrustFileInfo();
Marshal.PtrToStructure(pInfoStruct, info);
info.Dispose();
Marshal.DestroyStructure(pInfoStruct, typeof(WintrustFileInfo));
}
Marshal.FreeHGlobal(pInfoStruct);
}
public WintrustData(WintrustFileInfo fileInfo)
{
this.cbStruct = (uint)Marshal.SizeOf(typeof(WintrustData));
pInfoStruct = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(WintrustFileInfo)));
Marshal.StructureToPtr(fileInfo, pInfoStruct, false);
this.dwUnionChoice = UnionChoice.File;
pPolicyCallbackData = IntPtr.Zero;
pSIPCallbackData = IntPtr.Zero;
dwUIChoice = UiChoice.NoUI;
fdwRevocationChecks = RevocationCheckFlags.None;
dwStateAction = StateAction.Ignore;
hWVTStateData = IntPtr.Zero;
pwszURLReference = IntPtr.Zero;
dwProvFlags = TrustProviderFlags.Safer;
dwUIContext = UiContext.Execute;
}
private static uint WinVerifyTrust(string fileName)
{
uint result = 1;
if (!System.IO.File.Exists(fileName))
{
return(result);
}
var wintrustActionGenericVerifyV2 = new Guid("{00AAC56B-CD44-11d0-8CC2-00C04FC295EE}");
using (var fileInfo = new WintrustFileInfo(fileName, Guid.Empty))
using (var guidPtr = new UnmanagedPointer(Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Guid))), AllocMethod.HGlobal))
using (var wvtDataPtr = new UnmanagedPointer(Marshal.AllocHGlobal(Marshal.SizeOf(typeof(WintrustData))), AllocMethod.HGlobal))
{
var data = new WintrustData(fileInfo);
IntPtr pGuid = guidPtr;
IntPtr pData = wvtDataPtr;
Marshal.StructureToPtr(wintrustActionGenericVerifyV2, pGuid, true);
Marshal.StructureToPtr(data, pData, true);
result = WinVerifyTrust(IntPtr.Zero, pGuid, pData);
}
return(result);
}
