private ADObject[] ProcessSelections(IDataObject dataObj)
{
if (dataObj == null)
{
return(null);
}
using (logX.loggerX.InfoCall())
{
ADObject[] selections = null;
// The STGMEDIUM structure is a generalized global memory handle used for data transfer operations
STGMEDIUM stg = new STGMEDIUM();
stg.tymed = (uint)TYMED.TYMED_HGLOBAL;
stg.hGlobal = IntPtr.Zero;
stg.pUnkForRelease = IntPtr.Zero;
// The FORMATETC structure is a generalized Clipboard format.
FORMATETC fe = new FORMATETC();
fe.cfFormat = (short)System.Windows.Forms.DataFormats.GetFormat("CFSTR_DSOP_DS_SELECTION_LIST").Id;
//The CFSTR_DSOP_DS_SELECTION_LIST clipboard format is provided by the IDataObject obtained by calling IDsObjectPicker::InvokeDialog
fe.ptd = IntPtr.Zero;
fe.dwAspect = (uint)DVASPECT.DVASPECT_CONTENT;
fe.lindex = -1; // all of the data
fe.tymed = (uint)TYMED.TYMED_HGLOBAL; //The storage medium is a global memory handle (HGLOBAL)
dataObj.GetData(ref fe, ref stg);
IntPtr pDsSL = PInvoke.GlobalLock(stg.hGlobal);
try
{
// the start of our structure
IntPtr current = pDsSL;
// get the # of items selected
logX.loggerX.Debug("Start Read Int 32");
int cnt = (int)Marshal.ReadInt32(current);
logX.loggerX.Debug("Finish Read Int 32");
// if we selected at least 1 object
if (cnt > 0)
{
selections = new ADObject[cnt];
logX.loggerX.Debug("Line: 1");
// increment the pointer so we can read the DS_SELECTION structure
current = (IntPtr)((Int64)current + (Marshal.SizeOf(typeof(uint)) * 2)); //SQLsecure 3.1 (Tushar)--Fix for issue SQLSECU-1972
logX.loggerX.Debug("Line: 2");
// now loop through the structures
for (int i = 0; i < cnt; i++)
{
// marshal the pointer to the structure
DS_SELECTION s = (DS_SELECTION)Marshal.PtrToStructure(current, typeof(DS_SELECTION));
logX.loggerX.Debug("Line: 3");
// Marshal.DestroyStructure(current, typeof (DS_SELECTION));
logX.loggerX.Debug("Line: 4");
// increment the position of our pointer by the size of the structure
current = (IntPtr)((Int64)current + Marshal.SizeOf(typeof(DS_SELECTION))); //SQLsecure 3.1 (Tushar)--Fix for issue SQLSECU-1972
logX.loggerX.Debug("Line: 5");
selections[i] = new ADObject();
selections[i].Name = s.pwzName;
selections[i].AdsPath = s.pwzADsPath;
selections[i].UPN = s.pwzUPN;
selections[i].ClassName = s.pwzClass;
IntPtr ptrFetched = s.pvarFetchedAttributes;
logX.loggerX.Debug("Line: 6");
VARIANT vr = (VARIANT)Marshal.PtrToStructure(ptrFetched, typeof(VARIANT));
logX.loggerX.Debug("Line: 7");
string str = Marshal.PtrToStringUni(vr.bstrVal);
logX.loggerX.Debug("Line: 8");
selections[i].SamAccountName = str;
int vt = vr.vt;
IntPtr ptrSid = (IntPtr)((Int64)ptrFetched + (Marshal.SizeOf(typeof(VARIANT)))); //SQLsecure 3.1 (Tushar)--Fix for issue SQLSECU-1972
logX.loggerX.Debug("Line: 9");
vr = (VARIANT)Marshal.PtrToStructure(ptrSid, typeof(VARIANT));
logX.loggerX.Debug("Line: 10");
IntPtr pSids = IntPtr.Zero;
IntPtr pUBound = IntPtr.Zero;
int hr = PInvoke.SafeArrayAccessData(vr.pArray, out pSids);
logX.loggerX.Debug("Line: 11");
hr = PInvoke.SafeArrayGetUBound(vr.pArray, 1, out pUBound);
logX.loggerX.Debug("Line: 12");
Byte[] sid = new Byte[pUBound.ToInt32() + 1];
logX.loggerX.Debug("Line: 13");
for (int nBytes = 0; nBytes <= pUBound.ToInt32(); nBytes++)
{
sid.SetValue(Marshal.ReadByte(pSids, nBytes), nBytes);
}
logX.loggerX.Debug("Line: 14");
selections[i].Sid = new Sid(sid);
////This is how to obtain the Sid manually via lookup instead of by attribute
////Binding to the User object
//DirectoryEntry dr = new DirectoryEntry(selections[i].AdsPath);
//dr.RefreshCache();
////To get ObjectSid
//selections[i].Sid = new Sid((byte[])dr.Properties["objectSid"].Value);
//This will get another string value
//ptrNext = (IntPtr)((int)ptrSid + (Marshal.SizeOf(typeof(VARIANT))));
//vr = (VARIANT)Marshal.PtrToStructure(ptrNext, typeof(VARIANT));
//str = Marshal.PtrToStringUni(vr.bstrVal);
//build the SamAccount string with domain\SamAccountName
string domain;
bool isFlat;
if (Path.IsWinntPath(s.pwzADsPath))
{
// the browser doesn't return a SamAccountName for winnt paths
// so process the path for it
string samPath;
Path.GetSamPathFromWinNTPath(s.pwzADsPath, out samPath);
selections[i].SamAccountName = samPath;
}
else
{
//Get Domain Name and build it on to the SamAccountName
Path.ExtractDomainFromPath(s.pwzADsPath, out domain, out isFlat);
DOMAIN_CONTROLLER_INFO dcInfo;
if (!isFlat)
{
uint nameInFlag = (uint)DsGetDcFlags.DS_IS_DNS_NAME;
// Call DsGetDcName to get the flat domain info.
uint flags = ((uint)DsGetDcFlags.DS_RETURN_FLAT_NAME | nameInFlag);
uint rc = DS.DsGetDcName("", domain, flags, out dcInfo);
if (rc != Win32Errors.ERROR_SUCCESS)
{
logX.loggerX.Error("ERROR - Failed to get flat name DC info for the domain",
domain);
return(null);
}
else
{
domain = dcInfo.DomainName;
}
}
logX.loggerX.Debug("Line: 100");
selections[i].SamAccountName = Path.MakeSamPath(domain, selections[i].SamAccountName);
}
}
}
}
finally
{
PInvoke.GlobalUnlock(pDsSL);
}
return(selections);
}
}