io.kodokojo.endpoint.BasicAuthenticator.java Source code

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Here is the source code for io.kodokojo.endpoint.BasicAuthenticator.java

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/**
 * Kodo Kojo - Software factory done right
 * Copyright  2016 Kodo Kojo (infos@kodokojo.io)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package io.kodokojo.endpoint;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import spark.Filter;
import spark.Request;
import spark.Response;

import java.util.Base64;

import static org.apache.commons.lang.StringUtils.isNotBlank;

public class BasicAuthenticator implements Filter {

    private static final Logger LOGGER = LoggerFactory.getLogger(BasicAuthenticator.class);

    private String username;

    private String password;

    @Override
    public void handle(Request request, Response response) throws Exception {
        String authorization = request.headers("Authorization");
        if (StringUtils.isNotBlank(authorization) && authorization.startsWith("Basic ")) {
            String encoded = authorization.substring("Basic ".length());
            String decoded = new String(Base64.getDecoder().decode(encoded));
            String[] split = decoded.split(":");
            username = split[0];
            password = split[1];
        } else if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Basic Authorization header not found.");
            if (LOGGER.isTraceEnabled()) {
                LOGGER.trace("List of Header of current request {}", StringUtils.join(request.headers(), ","));
                LOGGER.trace("List of attribute : {}", StringUtils.join(request.attributes(), ","));
                LOGGER.trace("List of params : {}", StringUtils.join(request.queryParams(), ","));
            }
        }
    }

    public boolean isProvideCredentials() {
        return isNotBlank(username) && isNotBlank(password);
    }

    public String getUsername() {
        return username;
    }

    public String getPassword() {
        return password;
    }
}