cec.easyshop.storefront.security.impl.WebHttpSessionRequestCache.java Source code

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Here is the source code for cec.easyshop.storefront.security.impl.WebHttpSessionRequestCache.java

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/*
 * [y] hybris Platform
 *
 * Copyright (c) 2000-2015 hybris AG
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of hybris
 * ("Confidential Information"). You shall not disclose such Confidential
 * Information and shall use it only in accordance with the terms of the
 * license agreement you entered into with hybris.
 *
 *
 */
package cec.easyshop.storefront.security.impl;

import de.hybris.platform.acceleratorstorefrontcommons.constants.WebConstants;
import de.hybris.platform.servicelayer.session.SessionService;

import java.io.Serializable;

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

import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Required;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.PortResolver;
import org.springframework.security.web.PortResolverImpl;
import org.springframework.security.web.savedrequest.DefaultSavedRequest;
import org.springframework.security.web.savedrequest.HttpSessionRequestCache;
import org.springframework.security.web.savedrequest.SavedRequest;
import org.springframework.security.web.util.UrlUtils;
import org.springframework.security.web.util.matcher.AnyRequestMatcher;
import org.springframework.security.web.util.matcher.RequestMatcher;

/**
 * Extension of HttpSessionRequestCache that allows pass through of cookies from the current request. This is required
 * to allow the GUIDInterceptor to see the secure cookie written during authentication.
 * 
 * The <tt>RequestCache</tt> stores the <tt>SavedRequest</tt> in the HttpSession, this is then restored perfectly.
 * Unfortunately the saved request also hides new cookies that have been written since the saved request was created.
 * This implementation allows the current request's cookie values to override the cookies within the saved request.
 */
public class WebHttpSessionRequestCache extends HttpSessionRequestCache implements Serializable {
    private static final long serialVersionUID = 1L;
    private static final String REFERER = "referer";

    static final String SAVED_REQUEST = "SPRING_SECURITY_SAVED_REQUEST";

    private transient PortResolver portResolver = new PortResolverImpl();
    private transient RequestMatcher requestMatcher = AnyRequestMatcher.INSTANCE;
    private boolean createSessionAllowed = true;

    private SessionService sessionService;

    @Required
    public void setSessionService(final SessionService sessionService) {
        this.sessionService = sessionService;
    }

    public SessionService getSessionService() {
        return sessionService;
    }

    @Override
    public void setRequestMatcher(final RequestMatcher requestMatcher) {
        this.requestMatcher = requestMatcher;
        super.setRequestMatcher(requestMatcher);
    }

    @Override
    public void setPortResolver(final PortResolver portResolver) {
        this.portResolver = portResolver;
        super.setPortResolver(portResolver);
    }

    @Override
    public void setCreateSessionAllowed(final boolean createSessionAllowed) {
        this.createSessionAllowed = createSessionAllowed;
    }

    @Override
    public void saveRequest(final HttpServletRequest request, final HttpServletResponse response) {
        //this might be called while in ExceptionTranslationFilter#handleSpringSecurityException in this case base implementation
        if (SecurityContextHolder.getContext().getAuthentication() == null) {
            super.saveRequest(request, response);
        } else {
            final SavedRequest savedBefore = getRequest(request, response);
            if (savedBefore != null)//to not override request saved by ExceptionTranslationFilter#handleSpringSecurityException
            {
                return;
            }

            if (getRequestMatcher().matches(request)) {
                final DefaultSavedRequest savedRequest = new DefaultSavedRequest(request, getPortResolver()) {
                    private final String referer = request.getHeader(REFERER);
                    private final String contextPath = request.getContextPath();

                    @Override
                    public String getRedirectUrl() {
                        return calculateRelativeRedirectUrl(contextPath, referer);
                    }
                };

                if (isCreateSessionAllowed() || request.getSession(false) != null) {
                    request.getSession().setAttribute(SAVED_REQUEST, savedRequest);
                    logger.debug("DefaultSavedRequest added to Session: " + savedRequest);
                }
            } else {
                logger.debug("Request not saved as configured RequestMatcher did not match");
            }
        }
    }

    protected boolean isCreateSessionAllowed() {
        return createSessionAllowed;
    }

    protected PortResolver getPortResolver() {
        return portResolver;
    }

    protected RequestMatcher getRequestMatcher() {
        return requestMatcher;
    }

    @Override
    public HttpServletRequest getMatchingRequest(final HttpServletRequest request,
            final HttpServletResponse response) {
        HttpServletRequest result = super.getMatchingRequest(request, response);
        if (result != null) {
            result = new CookieMergingHttpServletRequestWrapper(result, request);
        }
        return result;
    }

    protected String calculateRelativeRedirectUrl(final String contextPath, final String url) {
        if (UrlUtils.isAbsoluteUrl(url)) {
            String relUrl = url.substring(url.indexOf("://") + 3);
            String modifiedContextPath = (StringUtils.isNotEmpty(contextPath)) ? contextPath : "/";
            final String urlEncodingAttributes = getSessionService()
                    .getAttribute(WebConstants.URL_ENCODING_ATTRIBUTES);
            if (urlEncodingAttributes != null && !url.contains(urlEncodingAttributes)
                    && modifiedContextPath.contains(urlEncodingAttributes)) {
                modifiedContextPath = StringUtils.remove(modifiedContextPath, urlEncodingAttributes);
            }

            relUrl = relUrl.substring(relUrl.indexOf(modifiedContextPath) + modifiedContextPath.length());

            return (StringUtils.isEmpty(relUrl)) ? "/" : relUrl;
        } else {
            return url;
        }
    }

}