org.apache.coheigea.cxf.syncope.authentication.SyncopeUTValidator.java Source code

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Here is the source code for org.apache.coheigea.cxf.syncope.authentication.SyncopeUTValidator.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.coheigea.cxf.syncope.authentication;

import java.util.Collections;

import org.apache.cxf.common.util.Base64Utility;
import org.apache.cxf.jaxrs.client.WebClient;
import org.apache.syncope.common.lib.to.UserTO;
import org.apache.wss4j.common.ext.WSSecurityException;
import org.apache.wss4j.dom.WSConstants;
import org.apache.wss4j.dom.handler.RequestData;
import org.apache.wss4j.dom.message.token.UsernameToken;
import org.apache.wss4j.dom.validate.Credential;
import org.apache.wss4j.dom.validate.Validator;
import com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider;

/**
 * This is a custom Validator that authenticates to a Syncope IDM and checks to see whether the
 * supplied username and password are in the system.
 */
public class SyncopeUTValidator implements Validator {

    private static org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory
            .getLog(SyncopeUTValidator.class);

    private String address;

    public Credential validate(Credential credential, RequestData data) throws WSSecurityException {
        if (credential == null || credential.getUsernametoken() == null) {
            throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "noCredential");
        }

        // Validate the UsernameToken
        UsernameToken usernameToken = credential.getUsernametoken();
        String pwType = usernameToken.getPasswordType();
        if (log.isDebugEnabled()) {
            log.debug("UsernameToken user " + usernameToken.getName());
            log.debug("UsernameToken password type " + pwType);
        }
        if (!WSConstants.PASSWORD_TEXT.equals(pwType)) {
            if (log.isDebugEnabled()) {
                log.debug("Authentication failed - digest passwords are not accepted");
            }
            throw new WSSecurityException(WSSecurityException.ErrorCode.FAILED_AUTHENTICATION);
        }
        if (usernameToken.getPassword() == null) {
            if (log.isDebugEnabled()) {
                log.debug("Authentication failed - no password was provided");
            }
            throw new WSSecurityException(WSSecurityException.ErrorCode.FAILED_AUTHENTICATION);
        }

        // Send it off to Syncope for validation
        WebClient client = WebClient.create(address, Collections.singletonList(new JacksonJsonProvider()));

        String authorizationHeader = "Basic "
                + Base64Utility.encode((usernameToken.getName() + ":" + usernameToken.getPassword()).getBytes());

        client.header("Authorization", authorizationHeader);
        if (log.isDebugEnabled()) {
            log.debug("Authenticating user " + usernameToken.getName() + " to Syncope server");
        }

        client = client.path("users/self");
        try {
            UserTO user = client.get(UserTO.class);
            if (user == null) {
                throw new WSSecurityException(WSSecurityException.ErrorCode.FAILED_AUTHENTICATION);
            }
        } catch (RuntimeException ex) {
            if (log.isDebugEnabled()) {
                log.debug(ex.getMessage(), ex);
            }
            throw new WSSecurityException(WSSecurityException.ErrorCode.FAILED_AUTHENTICATION);
        }

        return credential;
    }

    public void setAddress(String newAddress) {
        address = newAddress;
    }

    public String getAddress() {
        return address;
    }

}