Examples with SaslExtensions org.apache.kafka.common.security.auth.SaslExtensions used on opensource projects

Example 11 with SaslExtensions

use of org.apache.kafka.common.security.auth.SaslExtensions in project kafka by apache.

the class OAuthBearerSaslClient method evaluateChallenge.

@Override
public byte[] evaluateChallenge(byte[] challenge) throws SaslException {
    try {
        OAuthBearerTokenCallback callback = new OAuthBearerTokenCallback();
        switch(state) {
            case SEND_CLIENT_FIRST_MESSAGE:
                if (challenge != null && challenge.length != 0)
                    throw new SaslException("Expected empty challenge");
                callbackHandler().handle(new Callback[] { callback });
                SaslExtensions extensions = retrieveCustomExtensions();
                setState(State.RECEIVE_SERVER_FIRST_MESSAGE);
                return new OAuthBearerClientInitialResponse(callback.token().value(), extensions).toBytes();
            case RECEIVE_SERVER_FIRST_MESSAGE:
                if (challenge != null && challenge.length != 0) {
                    String jsonErrorResponse = new String(challenge, StandardCharsets.UTF_8);
                    if (log.isDebugEnabled())
                        log.debug("Sending %%x01 response to server after receiving an error: {}", jsonErrorResponse);
                    setState(State.RECEIVE_SERVER_MESSAGE_AFTER_FAILURE);
                    return new byte[] { BYTE_CONTROL_A };
                }
                callbackHandler().handle(new Callback[] { callback });
                if (log.isDebugEnabled())
                    log.debug("Successfully authenticated as {}", callback.token().principalName());
                setState(State.COMPLETE);
                return null;
            default:
                throw new IllegalSaslStateException("Unexpected challenge in Sasl client state " + state);
        }
    } catch (SaslException e) {
        setState(State.FAILED);
        throw e;
    } catch (IOException | UnsupportedCallbackException e) {
        setState(State.FAILED);
        throw new SaslException(e.getMessage(), e);
    }
}

Example 12 with SaslExtensions

use of org.apache.kafka.common.security.auth.SaslExtensions in project kafka by apache.

the class SaslClientCallbackHandler method handle.

@Override
public void handle(Callback[] callbacks) throws UnsupportedCallbackException {
    Subject subject = Subject.getSubject(AccessController.getContext());
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            NameCallback nc = (NameCallback) callback;
            if (subject != null && !subject.getPublicCredentials(String.class).isEmpty()) {
                nc.setName(subject.getPublicCredentials(String.class).iterator().next());
            } else
                nc.setName(nc.getDefaultName());
        } else if (callback instanceof PasswordCallback) {
            if (subject != null && !subject.getPrivateCredentials(String.class).isEmpty()) {
                char[] password = subject.getPrivateCredentials(String.class).iterator().next().toCharArray();
                ((PasswordCallback) callback).setPassword(password);
            } else {
                String errorMessage = "Could not login: the client is being asked for a password, but the Kafka" + " client code does not currently support obtaining a password from the user.";
                throw new UnsupportedCallbackException(callback, errorMessage);
            }
        } else if (callback instanceof RealmCallback) {
            RealmCallback rc = (RealmCallback) callback;
            rc.setText(rc.getDefaultText());
        } else if (callback instanceof AuthorizeCallback) {
            AuthorizeCallback ac = (AuthorizeCallback) callback;
            String authId = ac.getAuthenticationID();
            String authzId = ac.getAuthorizationID();
            ac.setAuthorized(authId.equals(authzId));
            if (ac.isAuthorized())
                ac.setAuthorizedID(authzId);
        } else if (callback instanceof ScramExtensionsCallback) {
            if (ScramMechanism.isScram(mechanism) && subject != null && !subject.getPublicCredentials(Map.class).isEmpty()) {
                @SuppressWarnings("unchecked") Map<String, String> extensions = (Map<String, String>) subject.getPublicCredentials(Map.class).iterator().next();
                ((ScramExtensionsCallback) callback).extensions(extensions);
            }
        } else if (callback instanceof SaslExtensionsCallback) {
            if (!SaslConfigs.GSSAPI_MECHANISM.equals(mechanism) && subject != null && !subject.getPublicCredentials(SaslExtensions.class).isEmpty()) {
                SaslExtensions extensions = subject.getPublicCredentials(SaslExtensions.class).iterator().next();
                ((SaslExtensionsCallback) callback).extensions(extensions);
            }
        } else {
            throw new UnsupportedCallbackException(callback, "Unrecognized SASL ClientCallback");
        }
    }
}

Example 13 with SaslExtensions

use of org.apache.kafka.common.security.auth.SaslExtensions in project kafka by apache.

the class OAuthBearerUnsecuredLoginCallbackHandler method handleExtensionsCallback.

/**
 *  Add and validate all the configured extensions.
 *  Token keys, apart from passing regex validation, must not be equal to the reserved key {@link OAuthBearerClientInitialResponse#AUTH_KEY}
 */
private void handleExtensionsCallback(SaslExtensionsCallback callback) {
    Map<String, String> extensions = new HashMap<>();
    for (Map.Entry<String, String> configEntry : this.moduleOptions.entrySet()) {
        String key = configEntry.getKey();
        if (!key.startsWith(EXTENSION_PREFIX))
            continue;
        extensions.put(key.substring(EXTENSION_PREFIX.length()), configEntry.getValue());
    }
    SaslExtensions saslExtensions = new SaslExtensions(extensions);
    try {
        OAuthBearerClientInitialResponse.validateExtensions(saslExtensions);
    } catch (SaslException e) {
        throw new ConfigException(e.getMessage());
    }
    callback.extensions(saslExtensions);
}

Example 14 with SaslExtensions

use of org.apache.kafka.common.security.auth.SaslExtensions in project kafka by apache.

the class OAuthBearerLoginCallbackHandler method handleExtensionsCallback.

private void handleExtensionsCallback(SaslExtensionsCallback callback) {
    checkInitialized();
    Map<String, String> extensions = new HashMap<>();
    for (Map.Entry<String, Object> configEntry : this.moduleOptions.entrySet()) {
        String key = configEntry.getKey();
        if (!key.startsWith(EXTENSION_PREFIX))
            continue;
        Object valueRaw = configEntry.getValue();
        String value;
        if (valueRaw instanceof String)
            value = (String) valueRaw;
        else
            value = String.valueOf(valueRaw);
        extensions.put(key.substring(EXTENSION_PREFIX.length()), value);
    }
    SaslExtensions saslExtensions = new SaslExtensions(extensions);
    try {
        OAuthBearerClientInitialResponse.validateExtensions(saslExtensions);
    } catch (SaslException e) {
        throw new ConfigException(e.getMessage());
    }
    callback.extensions(saslExtensions);
}

Example 15 with SaslExtensions

use of org.apache.kafka.common.security.auth.SaslExtensions in project kafka by apache.

the class OAuthBearerExtensionsValidatorCallbackTest method testCannotValidateExtensionWhichWasNotGiven.

@Test
public void testCannotValidateExtensionWhichWasNotGiven() {
    Map<String, String> extensions = new HashMap<>();
    extensions.put("hello", "bye");
    OAuthBearerExtensionsValidatorCallback callback = new OAuthBearerExtensionsValidatorCallback(TOKEN, new SaslExtensions(extensions));
    assertThrows(IllegalArgumentException.class, () -> callback.valid("???"));
}