com.springsource.hq.plugin.tcserver.serverconfig.web.support.HqAuthenticationEntryPoint.java Source code

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Here is the source code for com.springsource.hq.plugin.tcserver.serverconfig.web.support.HqAuthenticationEntryPoint.java

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/*
 * Copyright (C) 2010-2015  Pivotal Software, Inc
 *
 * This program is is free software; you can redistribute it and/or modify
 * it under the terms version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package com.springsource.hq.plugin.tcserver.serverconfig.web.support;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint;
import org.springframework.security.web.util.RedirectUrlBuilder;

/**
 * This alternative authentication entry point is created to allow going to a login page outside the current web app.
 * The entire path isn't provided, because it is assumed that the plugin is a sub-app of HQ.
 * 
 */
public class HqAuthenticationEntryPoint extends LoginUrlAuthenticationEntryPoint {

    private static final Log logger = LogFactory.getLog(HqAuthenticationEntryPoint.class);

    @Override
    protected String buildRedirectUrlToLoginPage(HttpServletRequest request, HttpServletResponse response,
            AuthenticationException authException) {
        String loginForm = determineUrlToUseForThisRequest(request, response, authException);
        int serverPort = getPortResolver().getServerPort(request);
        String scheme = request.getScheme();

        RedirectUrlBuilder urlBuilder = new RedirectUrlBuilder();

        urlBuilder.setScheme(scheme);
        urlBuilder.setServerName(request.getServerName());
        urlBuilder.setPort(serverPort);

        logger.debug("contextPath = " + request.getContextPath());

        urlBuilder.setPathInfo(loginForm);

        if (isForceHttps() && "http".equals(scheme)) {
            Integer httpsPort = getPortMapper().lookupHttpsPort(Integer.valueOf(serverPort));

            if (httpsPort != null) {
                // Overwrite scheme and port in the redirect URL
                urlBuilder.setScheme("https");
                urlBuilder.setPort(httpsPort.intValue());
            } else {
                logger.warn("Unable to redirect to HTTPS as no port mapping found for HTTP port " + serverPort);
            }
        }

        logger.debug("Redirecting to " + urlBuilder.getUrl());

        return urlBuilder.getUrl();
    }
}