private async Task <bool> ValidateCredentialsAsync(string uid, TTenant tenant)
{
_logger.Info("ValidateCredentialsAsync against ldap host");
int ldapPort = await _settings.GetLdapServerPort(tenant?.Id);
string ldapHost = await _settings.GetLdapHost(tenant?.Id);
var loginDN = await _settings.GetLdapLoginDn(tenant?.Id);
var loginPassword = await _settings.GetPassword(tenant?.Id);
var ldapSearchBase = await _settings.GetLdapUserSearchBase(tenant?.Id);
string searchLdapUser = uid;
string searchFilter = "(objectclass=*)";
string searchBase = $"uid={searchLdapUser}, {ldapSearchBase}"; // "ou = scientists, dc = example, dc = com"; //"uid=gauss, dc=example, dc=com";
LdapSearchConstraints constraints = new LdapSearchConstraints {
};
try
{
using (var cn = new LdapConnection())
{
// connect
cn.Connect(ldapHost, ldapPort);
cn.Bind(loginDN, loginPassword);
LdapSearchResults searchResults = cn.Search(
searchBase,
LdapConnection.SCOPE_SUB,
searchFilter,
null, // no specified attributes
false, // false = return attr and value
constraints);
while (searchResults.HasMore())
{
if (searchResults.Count == 1)
{
LdapEntry nextEntry = null;
try
{
nextEntry = searchResults.Next();
}
catch (LdapException e)
{
_logger.Error("Error: " + e.LdapErrorMessage);
//Exception is thrown, go for next entry
continue;
}
LdapEntries = new Dictionary <string, string>();
_logger.Debug(nextEntry.DN);
// Get the attribute set of the entry
LdapAttributeSet attributeSet = nextEntry.getAttributeSet();
System.Collections.IEnumerator ienum = attributeSet.GetEnumerator();
// Parse through the attribute set to get the attributes and the corresponding values
while (ienum.MoveNext())
{
LdapAttribute attribute = (LdapAttribute)ienum.Current;
string attributeName = attribute.Name;
string attributeVal = attribute.StringValue;
_logger.Debug(attributeName + "value:" + attributeVal);
LdapEntries.Add(attributeName, attributeVal);
}
return(true);
}
}
}
}
catch (LdapException ldapEx)
{
throw new AbpException(ldapEx.ToString()); // ocassional time outs
}
catch (Exception ex)
{
throw new AbpException(ex.ToString());
}
return(false);
}
