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/*-
* ================================================================================
* ECOMP Portal SDK
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property
* ================================================================================
* 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.onap.portalapp.login;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.onap.portalsdk.core.auth.LoginStrategy;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.onap.portalsdk.core.onboarding.exception.PortalAPIException;
import org.onap.portalsdk.core.onboarding.util.CipherUtil;
import org.onap.portalsdk.core.util.SystemProperties;
import org.springframework.web.servlet.ModelAndView;
/**
* Implements basic single-signon login strategy for open-source applications
* when users start at Portal. Extracts an encrypted user ID sent by Portal.
*/
public class LoginStrategyImpl extends LoginStrategy {
private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(LoginStrategyImpl.class);
/**
* login for open source is same as external login in the non-open-source
* version.
*/
@Override
public ModelAndView doLogin(HttpServletRequest request, HttpServletResponse response) throws Exception {
return doExternalLogin(request, response);
}
@Override
public String getUserId(HttpServletRequest request) throws PortalAPIException {
// Check ECOMP Portal cookie
Cookie ep = getCookie(request, EP_SERVICE);
if (ep == null) {
logger.debug(EELFLoggerDelegate.debugLogger, "getUserId: no EP_SERVICE cookie, returning null");
return null;
}
String userid = null;
try {
userid = getUserIdFromCookie(request);
} catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "getUserId failed", e);
}
return userid;
}
/**
* Searches the request for the user-ID cookie and decrypts the value using a
* key configured in properties
*
* @param request
* HttpServletRequest
* @return User ID
* @throws Exception
* On any failure
*/
private String getUserIdFromCookie(HttpServletRequest request) throws Exception {
String userId = "";
Cookie userIdCookie = getCookie(request, USER_ID);
if (userIdCookie != null) {
final String cookieValue = userIdCookie.getValue();
if (!SystemProperties.containsProperty(SystemProperties.Decryption_Key))
throw new Exception("Failed to find property " + SystemProperties.Decryption_Key);
final String decryptionKey = SystemProperties.getProperty(SystemProperties.Decryption_Key);
userId = CipherUtil.decrypt(cookieValue, decryptionKey);
logger.debug(EELFLoggerDelegate.debugLogger, "getUserIdFromCookie: decrypted as {}", userId);
}
return userId;
}
/**
* Searches the request for the named cookie.
*
* @param request
* HttpServletRequest
* @param cookieName
* Name of desired cookie
* @return Cookie if found; otherwise null.
*/
private Cookie getCookie(HttpServletRequest request, String cookieName) {
Cookie[] cookies = request.getCookies();
if (cookies != null)
for (Cookie cookie : cookies)
if (cookie.getName().equals(cookieName))
return cookie;
return null;
}
}
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