ICollection <SPUserInfo> EnumerateLocalGroup(SPUser group)
{
int entriesRead;
int totalEntries;
int resume;
IntPtr bufPtr;
DomainAndName names = new DomainAndName(group.LoginName);
List <SPUserInfo> users = new List <SPUserInfo>();
NetLocalGroupGetMembers(names.Domain, names.LoginName, 3, out bufPtr, -1, out entriesRead, out totalEntries, out resume);
try
{
if (entriesRead > 0)
{
LOCALGROUP_MEMBERS_INFO_3[] members = new LOCALGROUP_MEMBERS_INFO_3[entriesRead];
IntPtr pointer = bufPtr;
for (int i = 0; i < entriesRead; i++)
{
TimeSpan remaining = RemainingTime;
members[i] = (LOCALGROUP_MEMBERS_INFO_3)Marshal.PtrToStructure(pointer, typeof(LOCALGROUP_MEMBERS_INFO_3));
pointer = (IntPtr)((int)pointer + Marshal.SizeOf(typeof(LOCALGROUP_MEMBERS_INFO_3)));
ProcessLocalGroupMember(users, names.Domain, members[i].lgrmi3_domainandname);
}
}
}
finally
{
NetApiBufferFree(bufPtr);
}
return(users);
}
void ProcessLocalGroupMember(List <SPUserInfo> users, string machineName, string domainAndName)
{
DomainAndName names = new DomainAndName(domainAndName);
if (string.Compare(names.Domain, machineName, true, CultureInfo.InvariantCulture) == 0)
{
// Same machine so is a local group
IntPtr bufPtr = IntPtr.Zero;
try
{
if (NetUserGetInfo(names.Domain, names.LoginName, 2, out bufPtr) == 0)
{
USER_INFO_2 user = new USER_INFO_2();
user = (USER_INFO_2)Marshal.PtrToStructure(bufPtr, typeof(USER_INFO_2));
SPUserInfo spUser = new SPUserInfo();
spUser.LoginName = domainAndName;
spUser.Name = user.usri2_full_name;
users.Add(spUser);
}
}
finally
{
if (bufPtr != IntPtr.Zero)
{
NetApiBufferFree(bufPtr);
}
}
}
else
{
// Domain user
try
{
using (DirectoryEntry root = new DirectoryEntry("LDAP://" + names.Domain))
{
string filter = string.Format(CultureInfo.InvariantCulture, "(sAMAccountname={0})", names.LoginName);
using (DirectorySearcher searcher = new DirectorySearcher(root, filter, searchAttributes, SearchScope.Subtree))
{
ProcessSearchResults(searcher, users);
}
}
}
catch (COMException ex)
{
throw new DomainGroupEnumerationException(String.Format(culture.Culture, culture.Resources.DomainGroupEnumFailed, "LDAP://" + names.Domain), ex);
}
}
}