public static bool IsUserMemberOfGroups(PrincipalContext context, string samaccountname, List <string> groups)
{
using (UserPrincipal user = UserPrincipal.FindByIdentity(context, IdentityType.SamAccountName, samaccountname))
{
if (user != null)
{
GroupPrincipal prigroup = GetPrimaryGroup(context, user);
PrincipalSearchResult <Principal> usergroups = user.GetAuthorizationGroups();
if (groups == null)
{
return(true);
}
foreach (string groupname in groups)
{
using (GroupPrincipal group = GroupPrincipal.FindByIdentity(context, groupname))
{
if (group == null)
{
LoggerFacade.Warn("Group not found: " + groupname);
}
else
{
//work around issue where IsMemherOf always returns false on users primary group
if (group.Equals(prigroup))
{
return(true);
}
//now do normal processing
bool ismember = user.IsMemberOf(group);
if (ismember == false)
{
return(false);
}
}
}
}
return(true);
}
else
{
throw new NoMatchingPrincipalException("User not found: " + samaccountname);
}
}
}