com.predic8.membrane.core.interceptor.oauth2.flows.CodeFlow Maven / Gradle / Ivy
/*
* Copyright 2016 predic8 GmbH, www.predic8.com
* 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 com.predic8.membrane.core.interceptor.oauth2.flows;
import com.predic8.membrane.core.exchange.Exchange;
import com.predic8.membrane.core.http.Response;
import com.predic8.membrane.core.interceptor.Outcome;
import com.predic8.membrane.core.interceptor.authentication.session.SessionManager;
import com.predic8.membrane.core.interceptor.oauth2.OAuth2AuthorizationServerInterceptor;
import com.predic8.membrane.core.interceptor.oauth2.ParamNames;
import com.predic8.membrane.core.util.URLUtil;
import java.math.BigInteger;
import java.security.SecureRandom;
public class CodeFlow extends OAuth2Flow{
public CodeFlow(OAuth2AuthorizationServerInterceptor authServer, Exchange exc, SessionManager.Session s) {
super(authServer, exc, s);
}
public Outcome getResponse() throws Exception {
String code = generateAuthorizationCode();
synchronized(session){
session.getUserAttributes().put(ParamNames.CODE,code);
}
authServer.getSessionFinder().addSessionForCode(code,session);
return respondWithAuthorizationCodeAndRedirect(exc, code, session);
}
protected static String generateAuthorizationCode() {
return new BigInteger(130, new SecureRandom()).toString(32);
}
protected Outcome respondWithAuthorizationCodeAndRedirect(Exchange exc, String code, SessionManager.Session s) throws Exception {
String state = null;
String redirectUrl;
String rawQuery = URLUtil.getPathQuery(authServer.getRouter().getUriFactory(),exc.getRequestURI());
if(rawQuery.startsWith("/"))
rawQuery = rawQuery.substring(1);
if(rawQuery.startsWith("?"))
rawQuery = rawQuery.substring(1);
if(!rawQuery.isEmpty())
state = rawQuery;
synchronized (s) {
if(state == null) // TODO: always get state through query and not like this
state = s.getUserAttributes().get(ParamNames.STATE);
redirectUrl = s.getUserAttributes().get("redirect_uri");
}
exc.setResponse(Response.
redirect(redirectUrl + "?code=" + code + stateQuery(state),false).
dontCache().
body("").
build());
return Outcome.RETURN;
}
}