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/*
* Copyright (C) 2008-2017, Juick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.juick.service.security;
import com.juick.User;
import com.juick.service.security.entities.JuickUser;
import com.juick.service.UserService;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.authentication.RememberMeAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.RememberMeServices;
import org.springframework.security.web.authentication.rememberme.AbstractRememberMeServices;
import org.springframework.util.Assert;
import org.springframework.web.filter.OncePerRequestFilter;
import org.springframework.web.util.WebUtils;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* Created by aalexeev on 4/5/17.
*/
public class HashParamAuthenticationFilter extends OncePerRequestFilter {
public static final String PARAM_NAME = "hash";
private final UserService userService;
private final RememberMeServices rememberMeServices;
public HashParamAuthenticationFilter(
final UserService userService,
final RememberMeServices rememberMeServices) {
Assert.notNull(userService, "userService should not be null");
Assert.notNull(rememberMeServices, "rememberMeServices should not be null");
this.userService = userService;
this.rememberMeServices = rememberMeServices;
}
@Override
protected void doFilterInternal(
HttpServletRequest request,
HttpServletResponse response,
FilterChain filterChain) throws ServletException, IOException {
String hash = getHashFromRequest(request);
if (hash != null && authenticationIsRequired()) {
User user = userService.getUserByHash(hash);
if (!user.isAnonymous()) {
User userWithPassword = userService.getFullyUserByName(user.getName());
userWithPassword.setAuthHash(userService.getHashByUID(userWithPassword.getUid()));
Authentication authentication = new RememberMeAuthenticationToken(
((AbstractRememberMeServices)rememberMeServices).getKey(), new JuickUser(userWithPassword), JuickUser.USER_AUTHORITY);
SecurityContextHolder.getContext().setAuthentication(authentication);
rememberMeServices.loginSuccess(request, response, authentication);
}
}
filterChain.doFilter(request, response);
}
private boolean authenticationIsRequired() {
Authentication existingAuth = SecurityContextHolder.getContext().getAuthentication();
return existingAuth == null ||
!existingAuth.isAuthenticated() ||
existingAuth instanceof AnonymousAuthenticationToken;
}
private String getHashFromRequest(HttpServletRequest request) {
String paramHash = request.getParameter(PARAM_NAME);
Cookie cookieHash = WebUtils.getCookie(request, PARAM_NAME);
if (paramHash == null && cookieHash != null) {
return cookieHash.getValue();
}
return paramHash;
}
}
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