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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.fe.filters;
import org.apache.commons.lang3.StringUtils;
import org.onap.portalsdk.core.onboarding.util.PortalApiProperties;
import org.openecomp.sdc.common.log.wrappers.Logger;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.NoSuchElementException;
public class SecurityFilter implements Filter {
private static final Logger log = Logger.getLogger(SecurityFilter.class.getName());
private static final String PORTAL_COOKIE_NAME_IS_NOT_SET = "Portal cookie name is not set in portal.properties file";
private List<String> excludedUrls;
static final String PORTAL_COOKIE_NAME_KEY = "portal_cookie_name";
static final String PORTAL_REDIRECT_URL_KEY = "ecomp_redirect_url";
static final String FILTER_EXLUDED_URLS_KEY ="excludedUrls";
@Override
public void init(FilterConfig filterConfig) throws ServletException {
excludedUrls = Arrays.asList(filterConfig.getInitParameter(FILTER_EXLUDED_URLS_KEY).split(","));
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
final HttpServletRequest httpRequest = (HttpServletRequest) servletRequest;
final HttpServletResponse httpResponse = (HttpServletResponse) servletResponse;
log.debug("SecurityFilter received request with URL {}", httpRequest.getRequestURL());
//add redirecting to Portal if cookie is not provided
if (!excludedUrls.contains(httpRequest.getServletPath()) && !isRequestFromPortal(httpRequest.getCookies())) {
//redirect to portal app
log.debug("Request {} is not from Portal, redirecting there", httpRequest.getServletPath());
httpResponse.sendRedirect(PortalApiProperties.getProperty(PORTAL_REDIRECT_URL_KEY));
}
else {
filterChain.doFilter(servletRequest, servletResponse);
}
}
@Override
public void destroy() {
}
private boolean isRequestFromPortal(Cookie[] cookies) {
String portalCookieValue = PortalApiProperties.getProperty(PORTAL_COOKIE_NAME_KEY);
if (StringUtils.isEmpty(portalCookieValue)) {
log.error(PORTAL_COOKIE_NAME_IS_NOT_SET);
throw new NoSuchElementException(PORTAL_COOKIE_NAME_IS_NOT_SET);
}
return cookies != null && Arrays.stream(cookies)
.anyMatch(c->StringUtils.equals(c.getName(), portalCookieValue));
}
}
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