com.tremolosecurity.unison.proxy.auth.openidconnect.loadUser.LoadJWTFromAccessToken.java Source code

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Here is the source code for com.tremolosecurity.unison.proxy.auth.openidconnect.loadUser.LoadJWTFromAccessToken.java

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/*******************************************************************************
 * Copyright 2015, 2016 Tremolo Security, Inc.
 * 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.tremolosecurity.unison.proxy.auth.openidconnect.loadUser;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

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

import org.apache.commons.codec.binary.Base64;
import org.apache.logging.log4j.Logger;

import com.tremolosecurity.config.util.ConfigManager;
import com.tremolosecurity.saml.Attribute;
import com.tremolosecurity.unison.proxy.auth.openidconnect.sdk.LoadUserData;

public class LoadJWTFromAccessToken implements LoadUserData {

    static Logger logger = org.apache.logging.log4j.LogManager.getLogger(LoadJWTFromAccessToken.class.getName());

    public Map loadUserAttributesFromIdP(HttpServletRequest request, HttpServletResponse response,
            ConfigManager cfg, HashMap<String, Attribute> authParams, Map accessToken) throws Exception {

        String tokenName = authParams.get("jwtTokenAttributeName").getValues().get(0);

        String hd = authParams.get("hd").getValues().get(0);

        if (logger.isDebugEnabled()) {
            logger.debug("access token : '" + accessToken + "'");
        }

        //"id_token"
        String jwt = (String) accessToken.get(tokenName);

        Map jwtNVP = null;

        //Since we are getting the token from a valid source, no need to check the signature? (probably not really true, need to figure out what sig to check against)
        int firstPeriod = jwt.indexOf('.');
        int lastPeriod = jwt.lastIndexOf('.');

        String json = new String(Base64.decodeBase64(jwt.substring(firstPeriod + 1, lastPeriod)));

        if (logger.isDebugEnabled()) {
            logger.info("json : '" + json + "'");
        }

        jwtNVP = com.cedarsoftware.util.io.JsonReader.jsonToMaps(json);

        if (hd != null && !hd.isEmpty()) {
            String emailAddress = (String) jwtNVP.get("email");
            if (emailAddress != null && !emailAddress.isEmpty()) {
                if (!emailAddress.endsWith(hd)) {
                    return null;
                }
            } else {
                return null;
            }
        }

        return jwtNVP;
    }

}