davidrickey
asked on
I need a way to programmaticly retrieve a sid when given a users full nt login by querying AD.
I have a database that is populated with user names "domain\user"
I need a way to query AD and select a users SID based on their login name.
I am then going to take the SID given by AD and write that information back to the database.
I need a way to query AD and select a users SID based on their login name.
I am then going to take the SID given by AD and write that information back to the database.
ASKER CERTIFIED SOLUTION
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SOLUTION
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ASKER
jkr,
Before your last post I found this on the internet. Slightly modified, I was able to use it to do exactly what I needed. Thanks for responding.
Before your last post I found this on the internet. Slightly modified, I was able to use it to do exactly what I needed. Thanks for responding.
private void button1_Click(object sender, EventArgs e)
{
SqlDataReader dr;
string qry = "select ntaccount from tiuser where (sid = '' or sid is null) and (not ntaccount is null and not ntaccount = '') order by ntaccount";
SqlConnection con = new SqlConnection("ConnectionString");
SqlCommand cmd = new SqlCommand(qry, con);
try
{
con.Open();
dr = cmd.ExecuteReader();
while (dr.Read())
{
writeData(GetSid(dr.GetString(0)), dr.GetString(0));
}
}
catch { }
}
private string GetSid(string strLogin)
{
string str = "";
// Parse the string to check if domain name is present.
int idx = strLogin.IndexOf('\\');
if (idx == -1)
{
idx = strLogin.IndexOf('@');
}
string strDomain;
string strName;
if (idx != -1)
{
strDomain = strLogin.Substring(0, idx);
strName = strLogin.Substring(idx + 1);
}
else
{
strDomain = Environment.MachineName;
strName = strLogin;
}
DirectoryEntry obDirEntry = null;
try
{
Int64 iBigVal = 5;
Byte[] bigArr = BitConverter.GetBytes(iBigVal);
obDirEntry = new DirectoryEntry("WinNT://" +
strDomain + "/" + strName);
System.DirectoryServices.PropertyCollection
coll = obDirEntry.Properties;
object obVal = coll["objectSid"].Value;
if (null != obVal)
{
str = this.ConvertByteToStringSid((Byte[])obVal);
}
}
catch (Exception ex)
{
str = "";
//Trace.Write(ex.Message);
}
return str;
}
private string ConvertByteToStringSid(Byte[] sidBytes)
{
StringBuilder strSid = new StringBuilder();
strSid.Append("S-");
try
{
// Add SID revision.
strSid.Append(sidBytes[0].ToString());
// Next six bytes are SID authority value.
if (sidBytes[6] != 0 || sidBytes[5] != 0)
{
string strAuth = String.Format
("0x{0:2x}{1:2x}{2:2x}{3:2x}{4:2x}{5:2x}",
(Int16)sidBytes[1],
(Int16)sidBytes[2],
(Int16)sidBytes[3],
(Int16)sidBytes[4],
(Int16)sidBytes[5],
(Int16)sidBytes[6]);
strSid.Append("-");
strSid.Append(strAuth);
}
else
{
Int64 iVal = (Int32)(sidBytes[1]) +
(Int32)(sidBytes[2] << 8) +
(Int32)(sidBytes[3] << 16) +
(Int32)(sidBytes[4] << 24);
strSid.Append("-");
strSid.Append(iVal.ToString());
}
// Get sub authority count...
int iSubCount = Convert.ToInt32(sidBytes[7]);
int idxAuth = 0;
for (int i = 0; i < iSubCount; i++)
{
idxAuth = 8 + i * 4;
UInt32 iSubAuth = BitConverter.ToUInt32(sidBytes, idxAuth);
strSid.Append("-");
strSid.Append(iSubAuth.ToString());
}
}
catch (Exception ex)
{
//Trace.Warn(ex.Message);
return "";
}
return strSid.ToString();
}
private void writeData(string SID, string user)
{
SqlDataAdapter da = new SqlDataAdapter();
SqlConnection con = new SqlConnection("ConnectionString");
string qry = "UPDATE TIUSER SET SID = '" + SID + "' WHERE (NTACCOUNT = '" + user + "')";
da.UpdateCommand = new SqlCommand(qry, con);
try
{
con.Open();
da.UpdateCommand.ExecuteNonQuery();
}
catch{}
con.Close();
}
ASKER
Is there an easy way to interface psgetsid with my application?