/** {@inheritDoc} */
@Override
public Response<Void> bind(final BindRequest request) throws LdapException {
Response<Void> response;
if (request.getSaslConfig() != null) {
response = saslBind(request);
} else if (request.getDn() == null && request.getCredential() == null) {
response = anonymousBind(request);
} else {
response = simpleBind(request);
}
return response;
}
/**
* Performs a simple bind.
*
* @param request to bind with
* @return bind response
* @throws LdapException if an error occurs
*/
protected Response<Void> simpleBind(final BindRequest request) throws LdapException {
Response<Void> response = null;
try {
final LDAPResponseQueue queue =
connection.bind(
LDAPConnection.LDAP_V3,
request.getDn(),
request.getCredential().getBytes(),
(LDAPResponseQueue) null,
getLDAPConstraints(request));
final LDAPResponse lr = (LDAPResponse) queue.getResponse();
response = createResponse(request, null, lr);
} catch (LDAPException e) {
processLDAPException(e);
}
return response;
}
/**
* Performs a sasl bind.
*
* @param request to bind with
* @return bind response
* @throws LdapException if an error occurs
*/
protected Response<Void> saslBind(final BindRequest request) throws LdapException {
try {
final SaslConfig sc = request.getSaslConfig();
switch (sc.getMechanism()) {
case EXTERNAL:
throw new UnsupportedOperationException("SASL External not supported");
/* current implementation appears to be broken
* see http://tinyurl.com/7ojdzlz
* connection.bind(
* (String) null,
* sc.getAuthorizationId(),
* new String[] {"EXTERNAL"},
* null,
* (Object) null);
* break;
*/
case DIGEST_MD5:
connection.bind(
(String) null,
request.getDn(),
new String[] {"DIGEST-MD5"},
null,
new SaslCallbackHandler(
null,
request.getCredential() != null ? request.getCredential().getString() : null));
break;
case CRAM_MD5:
throw new UnsupportedOperationException("CRAM-MD5 not supported");
case GSSAPI:
throw new UnsupportedOperationException("GSSAPI not supported");
default:
throw new IllegalArgumentException(
"Unknown SASL authentication mechanism: " + sc.getMechanism());
}
} catch (LDAPException e) {
processLDAPException(e);
}
return new Response<Void>(null, ResultCode.SUCCESS);
}