/**
* Validates a number of password policy state constraints for the user. This will be called
* before the offered credentials are checked.
*
* @param userEntry The entry for the user that is authenticating.
* @param saslHandler The SASL mechanism handler if this is a SASL bind, or {@code null} for a
* simple bind.
* @throws DirectoryException If a problem occurs that should cause the bind to fail.
*/
protected void checkUnverifiedPasswordPolicyState(
Entry userEntry, SASLMechanismHandler<?> saslHandler) throws DirectoryException {
PasswordPolicyState pwPolicyState = (PasswordPolicyState) authPolicyState;
PasswordPolicy policy = pwPolicyState.getAuthenticationPolicy();
boolean isSASLBind = saslHandler != null;
// If the password policy is configured to track authentication failures or
// keep the last login time and the associated backend is disabled, then we
// may need to reject the bind immediately.
if ((policy.getStateUpdateFailurePolicy()
== PasswordPolicyCfgDefn.StateUpdateFailurePolicy.PROACTIVE)
&& ((policy.getLockoutFailureCount() > 0)
|| ((policy.getLastLoginTimeAttribute() != null)
&& (policy.getLastLoginTimeFormat() != null)))
&& ((DirectoryServer.getWritabilityMode() == WritabilityMode.DISABLED)
|| (backend.getWritabilityMode() == WritabilityMode.DISABLED))) {
// This policy isn't applicable to root users, so if it's a root
// user then ignore it.
if (!DirectoryServer.isRootDN(userEntry.getName())) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS,
ERR_BIND_OPERATION_WRITABILITY_DISABLED.get(userEntry.getName()));
}
}
// Check to see if the authentication must be done in a secure
// manner. If so, then the client connection must be secure.
if (policy.isRequireSecureAuthentication() && !clientConnection.isSecure()) {
if (isSASLBind) {
if (!saslHandler.isSecure(saslMechanism)) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS,
ERR_BIND_OPERATION_INSECURE_SASL_BIND.get(saslMechanism, userEntry.getName()));
}
} else {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS, ERR_BIND_OPERATION_INSECURE_SIMPLE_BIND.get());
}
}
}
private Integer getIntegerUserAttribute(
Entry userEntry,
String attributeTypeName,
Arg1<Object> nonUniqueAttributeMessage,
Arg2<Object, Object> cannotProcessAttributeMessage) {
AttributeType attrType = DirectoryServer.getAttributeTypeOrDefault(attributeTypeName);
List<Attribute> attrList = userEntry.getAttribute(attrType);
if (attrList != null && attrList.size() == 1) {
Attribute a = attrList.get(0);
if (a.size() == 1) {
ByteString v = a.iterator().next();
try {
return Integer.valueOf(v.toString());
} catch (Exception e) {
logger.traceException(e);
logger.error(cannotProcessAttributeMessage.get(v, userEntry.getName()));
}
} else if (a.size() > 1) {
logger.error(nonUniqueAttributeMessage.get(userEntry.getName()));
}
}
return null;
}
/** {@inheritDoc} */
@Override
public void processSASLBind(BindOperation bindOperation) {
ExternalSASLMechanismHandlerCfg config = currentConfig;
AttributeType certificateAttributeType = this.certificateAttributeType;
CertificateValidationPolicy validationPolicy = this.validationPolicy;
// Get the client connection used for the bind request, and get the
// security manager for that connection. If either are null, then fail.
ClientConnection clientConnection = bindOperation.getClientConnection();
if (clientConnection == null) {
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message = ERR_SASLEXTERNAL_NO_CLIENT_CONNECTION.get();
bindOperation.setAuthFailureReason(message);
return;
}
if (!(clientConnection instanceof LDAPClientConnection)) {
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message = ERR_SASLEXTERNAL_NOT_LDAP_CLIENT_INSTANCE.get();
bindOperation.setAuthFailureReason(message);
return;
}
LDAPClientConnection lc = (LDAPClientConnection) clientConnection;
Certificate[] clientCertChain = lc.getClientCertificateChain();
if ((clientCertChain == null) || (clientCertChain.length == 0)) {
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message = ERR_SASLEXTERNAL_NO_CLIENT_CERT.get();
bindOperation.setAuthFailureReason(message);
return;
}
// Get the certificate mapper to use to map the certificate to a user entry.
DN certificateMapperDN = config.getCertificateMapperDN();
CertificateMapper<?> certificateMapper =
DirectoryServer.getCertificateMapper(certificateMapperDN);
// Use the Directory Server certificate mapper to map the client certificate
// chain to a single user DN.
Entry userEntry;
try {
userEntry = certificateMapper.mapCertificateToUser(clientCertChain);
} catch (DirectoryException de) {
logger.traceException(de);
bindOperation.setResponseData(de);
return;
}
// If the user DN is null, then we couldn't establish a mapping and
// therefore the authentication failed.
if (userEntry == null) {
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message = ERR_SASLEXTERNAL_NO_MAPPING.get();
bindOperation.setAuthFailureReason(message);
return;
} else {
bindOperation.setSASLAuthUserEntry(userEntry);
}
// Get the userCertificate attribute from the user's entry for use in the
// validation process.
List<Attribute> certAttrList = userEntry.getAttribute(certificateAttributeType);
switch (validationPolicy) {
case ALWAYS:
if (certAttrList == null) {
if (validationPolicy == CertificateValidationPolicy.ALWAYS) {
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message = ERR_SASLEXTERNAL_NO_CERT_IN_ENTRY.get(userEntry.getName());
bindOperation.setAuthFailureReason(message);
return;
}
} else {
try {
ByteString certBytes = ByteString.wrap(clientCertChain[0].getEncoded());
if (!find(certAttrList, certBytes)) {
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message =
ERR_SASLEXTERNAL_PEER_CERT_NOT_FOUND.get(userEntry.getName());
bindOperation.setAuthFailureReason(message);
return;
}
} catch (Exception e) {
logger.traceException(e);
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message =
ERR_SASLEXTERNAL_CANNOT_VALIDATE_CERT.get(
userEntry.getName(), getExceptionMessage(e));
bindOperation.setAuthFailureReason(message);
return;
}
}
break;
case IFPRESENT:
if (certAttrList != null) {
try {
ByteString certBytes = ByteString.wrap(clientCertChain[0].getEncoded());
if (!find(certAttrList, certBytes)) {
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message =
ERR_SASLEXTERNAL_PEER_CERT_NOT_FOUND.get(userEntry.getName());
bindOperation.setAuthFailureReason(message);
return;
}
} catch (Exception e) {
logger.traceException(e);
bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
LocalizableMessage message =
ERR_SASLEXTERNAL_CANNOT_VALIDATE_CERT.get(
userEntry.getName(), getExceptionMessage(e));
bindOperation.setAuthFailureReason(message);
return;
}
}
}
AuthenticationInfo authInfo =
new AuthenticationInfo(
userEntry, SASL_MECHANISM_EXTERNAL, DirectoryServer.isRootDN(userEntry.getName()));
bindOperation.setAuthenticationInfo(authInfo);
bindOperation.setResultCode(ResultCode.SUCCESS);
}
/**
* Performs the processing necessary for a SASL bind operation.
*
* @return {@code true} if processing should continue for the operation, or {@code false} if not.
* @throws DirectoryException If a problem occurs that should cause the bind operation to fail.
*/
private boolean processSASLBind() throws DirectoryException {
// Get the appropriate authentication handler for this request based
// on the SASL mechanism. If there is none, then fail.
SASLMechanismHandler<?> saslHandler = DirectoryServer.getSASLMechanismHandler(saslMechanism);
if (saslHandler == null) {
throw new DirectoryException(
ResultCode.AUTH_METHOD_NOT_SUPPORTED,
ERR_BIND_OPERATION_UNKNOWN_SASL_MECHANISM.get(saslMechanism));
}
// Check to see if the client has sufficient permission to perform the bind.
// NYI
// Invoke pre-operation plugins.
if (!invokePreOpPlugins()) {
return false;
}
// Actually process the SASL bind.
saslHandler.processSASLBind(this);
// If the server is operating in lockdown mode, then we will need to
// ensure that the authentication was successful and performed as a
// root user to continue.
Entry saslAuthUserEntry = getSASLAuthUserEntry();
if (DirectoryServer.lockdownMode()) {
ResultCode resultCode = getResultCode();
if (resultCode != ResultCode.SASL_BIND_IN_PROGRESS
&& (resultCode != ResultCode.SUCCESS
|| saslAuthUserEntry == null
|| !ClientConnection.hasPrivilege(saslAuthUserEntry, BYPASS_LOCKDOWN))) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS, ERR_BIND_REJECTED_LOCKDOWN_MODE.get());
}
}
// Create the password policy state object.
if (saslAuthUserEntry != null) {
setUserEntryDN(saslAuthUserEntry.getName());
// FIXME -- Need to have a way to enable debugging.
authPolicyState = AuthenticationPolicyState.forUser(saslAuthUserEntry, false);
if (authPolicyState.isPasswordPolicy()) {
// Account is managed locally: perform password policy checks that can
// be completed before we have checked authentication was successful.
checkUnverifiedPasswordPolicyState(saslAuthUserEntry, saslHandler);
}
}
// Determine whether the authentication was successful and perform
// any remaining password policy processing accordingly.
ResultCode resultCode = getResultCode();
if (resultCode == ResultCode.SUCCESS) {
if (authPolicyState != null && authPolicyState.isPasswordPolicy()) {
checkVerifiedPasswordPolicyState(saslAuthUserEntry, saslHandler);
PasswordPolicyState pwPolicyState = (PasswordPolicyState) authPolicyState;
if (saslHandler.isPasswordBased(saslMechanism) && pwPolicyState.mustChangePassword()) {
mustChangePassword = true;
}
if (isFirstWarning) {
pwPolicyState.setWarnedTime();
int numSeconds = pwPolicyState.getSecondsUntilExpiration();
LocalizableMessage m = WARN_BIND_PASSWORD_EXPIRING.get(secondsToTimeString(numSeconds));
pwPolicyState.generateAccountStatusNotification(
AccountStatusNotificationType.PASSWORD_EXPIRING,
saslAuthUserEntry,
m,
AccountStatusNotification.createProperties(
pwPolicyState, false, numSeconds, null, null));
}
if (isGraceLogin) {
pwPolicyState.updateGraceLoginTimes();
}
pwPolicyState.setLastLoginTime();
}
// Set appropriate resource limits for the user (note that SASL ANONYMOUS
// does not have a user).
if (saslAuthUserEntry != null) {
setResourceLimits(saslAuthUserEntry);
}
} else if (resultCode == ResultCode.SASL_BIND_IN_PROGRESS) {
// FIXME -- Is any special processing needed here?
return false;
} else {
if (authPolicyState != null && authPolicyState.isPasswordPolicy()) {
PasswordPolicyState pwPolicyState = (PasswordPolicyState) authPolicyState;
if (saslHandler.isPasswordBased(saslMechanism)
&& pwPolicyState.getAuthenticationPolicy().getLockoutFailureCount() > 0) {
generateAccountStatusNotificationForLockedBindAccount(saslAuthUserEntry, pwPolicyState);
}
}
}
return true;
}
/**
* Performs the processing necessary for a simple bind operation.
*
* @return {@code true} if processing should continue for the operation, or {@code false} if not.
* @throws DirectoryException If a problem occurs that should cause the bind operation to fail.
*/
protected boolean processSimpleBind() throws DirectoryException {
// See if this is an anonymous bind. If so, then determine whether
// to allow it.
ByteString simplePassword = getSimplePassword();
if (simplePassword == null || simplePassword.length() == 0) {
return processAnonymousSimpleBind();
}
// See if the bind DN is actually one of the alternate root DNs
// defined in the server. If so, then replace it with the actual DN
// for that user.
DN actualRootDN = DirectoryServer.getActualRootBindDN(bindDN);
if (actualRootDN != null) {
bindDN = actualRootDN;
}
Entry userEntry;
try {
userEntry = backend.getEntry(bindDN);
} catch (DirectoryException de) {
logger.traceException(de);
userEntry = null;
if (de.getResultCode() == ResultCode.REFERRAL) {
// Re-throw referral exceptions - these should be passed back
// to the client.
throw de;
} else {
// Replace other exceptions in case they expose any sensitive
// information.
throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, de.getMessageObject());
}
}
if (userEntry == null) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS, ERR_BIND_OPERATION_UNKNOWN_USER.get());
} else {
setUserEntryDN(userEntry.getName());
}
// Check to see if the user has a password. If not, then fail.
// FIXME -- We need to have a way to enable/disable debugging.
authPolicyState = AuthenticationPolicyState.forUser(userEntry, false);
if (authPolicyState.isPasswordPolicy()) {
// Account is managed locally.
PasswordPolicyState pwPolicyState = (PasswordPolicyState) authPolicyState;
PasswordPolicy policy = pwPolicyState.getAuthenticationPolicy();
AttributeType pwType = policy.getPasswordAttribute();
List<Attribute> pwAttr = userEntry.getAttribute(pwType);
if (pwAttr == null || pwAttr.isEmpty()) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS, ERR_BIND_OPERATION_NO_PASSWORD.get());
}
// Perform a number of password policy state checks for the
// non-authenticated user.
checkUnverifiedPasswordPolicyState(userEntry, null);
// Invoke pre-operation plugins.
if (!invokePreOpPlugins()) {
return false;
}
// Determine whether the provided password matches any of the stored
// passwords for the user.
if (pwPolicyState.passwordMatches(simplePassword)) {
setResultCode(ResultCode.SUCCESS);
checkVerifiedPasswordPolicyState(userEntry, null);
if (DirectoryServer.lockdownMode()
&& !ClientConnection.hasPrivilege(userEntry, BYPASS_LOCKDOWN)) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS, ERR_BIND_REJECTED_LOCKDOWN_MODE.get());
}
setAuthenticationInfo(
new AuthenticationInfo(
userEntry, getBindDN(), DirectoryServer.isRootDN(userEntry.getName())));
// Set resource limits for the authenticated user.
setResourceLimits(userEntry);
// Perform any remaining processing for a successful simple
// authentication.
pwPolicyState.handleDeprecatedStorageSchemes(simplePassword);
pwPolicyState.clearFailureLockout();
if (isFirstWarning) {
pwPolicyState.setWarnedTime();
int numSeconds = pwPolicyState.getSecondsUntilExpiration();
LocalizableMessage m = WARN_BIND_PASSWORD_EXPIRING.get(secondsToTimeString(numSeconds));
pwPolicyState.generateAccountStatusNotification(
AccountStatusNotificationType.PASSWORD_EXPIRING,
userEntry,
m,
AccountStatusNotification.createProperties(
pwPolicyState, false, numSeconds, null, null));
}
if (isGraceLogin) {
pwPolicyState.updateGraceLoginTimes();
}
pwPolicyState.setLastLoginTime();
} else {
setResultCode(ResultCode.INVALID_CREDENTIALS);
setAuthFailureReason(ERR_BIND_OPERATION_WRONG_PASSWORD.get());
if (policy.getLockoutFailureCount() > 0) {
generateAccountStatusNotificationForLockedBindAccount(userEntry, pwPolicyState);
}
}
} else {
// Check to see if the user is administratively disabled or locked.
if (authPolicyState.isDisabled()) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS, ERR_BIND_OPERATION_ACCOUNT_DISABLED.get());
}
// Invoke pre-operation plugins.
if (!invokePreOpPlugins()) {
return false;
}
if (authPolicyState.passwordMatches(simplePassword)) {
setResultCode(ResultCode.SUCCESS);
if (DirectoryServer.lockdownMode()
&& !ClientConnection.hasPrivilege(userEntry, BYPASS_LOCKDOWN)) {
throw new DirectoryException(
ResultCode.INVALID_CREDENTIALS, ERR_BIND_REJECTED_LOCKDOWN_MODE.get());
}
setAuthenticationInfo(
new AuthenticationInfo(
userEntry, getBindDN(), DirectoryServer.isRootDN(userEntry.getName())));
// Set resource limits for the authenticated user.
setResourceLimits(userEntry);
} else {
setResultCode(ResultCode.INVALID_CREDENTIALS);
setAuthFailureReason(ERR_BIND_OPERATION_WRONG_PASSWORD.get());
}
}
return true;
}