org.apache.juddi.v3.auth.CryptedXMLDocAuthenticator.java Source code

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Here is the source code for org.apache.juddi.v3.auth.CryptedXMLDocAuthenticator.java

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/*
 * Copyright 2001-2008 The Apache Software Foundation.
 * 
 * Licensed 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.juddi.v3.auth;

import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

import javax.crypto.BadPaddingException;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.xml.bind.JAXBException;

import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.juddi.config.AppConfig;
import org.apache.juddi.config.Property;
import org.apache.juddi.v3.client.cryptor.Cryptor;
import org.apache.juddi.cryptor.CryptorFactory;
import org.apache.juddi.v3.error.AuthenticationException;
import org.apache.juddi.v3.error.ErrorMessage;
import org.apache.juddi.v3.error.FatalErrorException;
import org.apache.juddi.v3.error.RegistryException;
import org.apache.juddi.v3.error.UnknownUserException;

/**
 * @author Anou Manavalan
 */
public class CryptedXMLDocAuthenticator extends XMLDocAuthenticator {

    private Log logger = LogFactory.getLog(this.getClass());

    /**
     * @throws IOException
     * @throws JAXBException
     * @throws ConfigurationException 
     * 
     */
    public CryptedXMLDocAuthenticator() throws JAXBException, IOException, ConfigurationException {
        super();
    }

    private CryptedXMLDocAuthenticator(boolean b) {
        super(b);
    }

    @Override
    protected String getFilename() throws ConfigurationException {
        return AppConfig.getConfiguration().getString(Property.JUDDI_USERSFILE,
                Property.DEFAULT_ENCRYPTED_XML_USERSFILE);
    }

    /**
     *
     */
    public String authenticate(String userID, String credential)
            throws AuthenticationException, FatalErrorException {
        preProcess(userID, credential);
        String encryptedCredential = encrypt(credential);
        return postProcess(userID, encryptedCredential);
    }

    /**
     *
     */
    private String encrypt(String str) throws FatalErrorException {
        try {
            Cryptor cryptor = (Cryptor) CryptorFactory.getCryptor();
            return cryptor.encrypt(str);
        } catch (InvalidKeyException e) {
            logger.error("Invalid Key Exception in crypting the password", e);
            throw new FatalErrorException(new ErrorMessage("errors.auth.cryptor.InvalidKey", e.getMessage()));
        } catch (NoSuchPaddingException e) {
            logger.error("Padding Exception in crypting the password", e);
            throw new FatalErrorException(new ErrorMessage("errors.auth.cryptor.Padding", e.getMessage()));
        } catch (NoSuchAlgorithmException e) {
            logger.error("Algorithm Exception in crypting the password", e);
            throw new FatalErrorException(new ErrorMessage("errors.auth.cryptor.Algorithm", e.getMessage()));
        } catch (InvalidAlgorithmParameterException e) {
            logger.error("Algorithm parameter Exception in crypting the password", e);
            throw new FatalErrorException(new ErrorMessage("errors.auth.cryptor.AlgorithmParam", e.getMessage()));
        } catch (IllegalBlockSizeException e) {
            logger.error("Block size Exception in crypting the password", e);
            throw new FatalErrorException(new ErrorMessage("errors.auth.cryptor.BlockSize", e.getMessage()));
        } catch (BadPaddingException e) {
            logger.error("Bad Padding Exception in crypting the password", e);
            throw new FatalErrorException(new ErrorMessage("errors.auth.cryptor.BadPadding", e.getMessage()));
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
            throw new FatalErrorException(new ErrorMessage("errors.auth.cryptor.BlockSize", e.getMessage()));
        }
    }

    /**
     * @param userID
     * @param credential
     * @throws RegistryException
     */
    private void preProcess(String userID, String credential) throws AuthenticationException {
        // a userID must be specified.
        if (userID == null) {
            throw new UnknownUserException(new ErrorMessage("errors.auth.InvalidUserId"));
        }
        // credential (password) must be specified.
        if (credential == null) {
            throw new UnknownUserException(new ErrorMessage("errors.auth.InvalidCredentials"));
        }
    }

    /**
     * @param userID
     * @param encryptedCredential
     * @return user id
     * @throws AuthenticationException
     */
    private String postProcess(String userID, String encryptedCredential) throws AuthenticationException {
        if (userTable.containsKey(userID)) {
            User user = (User) userTable.get(userID);
            if ((user.getPassword() == null) || (!encryptedCredential.equals(user.getPassword()))) {
                throw new UnknownUserException(new ErrorMessage("errors.auth.InvalidCredentials", userID));
            }
        } else {
            throw new UnknownUserException(new ErrorMessage("errors.auth.InvalidUserId", userID));
        }
        return userID;
    }
}