com.tremolosecurity.proxy.auth.persistentCookie.PersistentCookieResult.java Source code

Introduction

Here is the source code for com.tremolosecurity.proxy.auth.persistentCookie.PersistentCookieResult.java

Source

/*
Copyright 2015 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.proxy.auth.persistentCookie;

import java.net.URISyntaxException;
import java.util.HashSet;

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

import org.apache.commons.codec.binary.Base64;
import org.joda.time.DateTime;

import com.tremolosecurity.config.util.ConfigManager;
import com.tremolosecurity.config.util.UrlHolder;
import com.tremolosecurity.config.xml.AuthChainType;
import com.tremolosecurity.config.xml.AuthMechType;
import com.tremolosecurity.config.xml.MechanismType;
import com.tremolosecurity.config.xml.ParamType;
import com.tremolosecurity.proxy.auth.AuthController;
import com.tremolosecurity.proxy.results.CustomResult;
import com.tremolosecurity.proxy.util.ProxyConstants;
import com.tremolosecurity.saml.Attribute;

public class PersistentCookieResult implements CustomResult {

    @Override
    public String getResultValue(HttpServletRequest request, HttpServletResponse response) throws ServletException {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void createResultCookie(Cookie cookie, HttpServletRequest request, HttpServletResponse response)
            throws ServletException {

        UrlHolder holder = (UrlHolder) request.getAttribute(ProxyConstants.AUTOIDM_CFG);
        ConfigManager mgr = holder.getConfig();

        HashSet<String> mechs = new HashSet<String>();

        for (String mechName : mgr.getAuthMechs().keySet()) {
            MechanismType mech = mgr.getAuthMechs().get(mechName);
            if (mech.getClassName()
                    .equalsIgnoreCase("com.tremolosecurity.proxy.auth.persistentCookie.PersistentCookie")) {
                mechs.add(mechName);
            }
        }

        AuthController authCtl = (AuthController) request.getSession().getAttribute(ProxyConstants.AUTH_CTL);
        String chainName = authCtl.getAuthInfo().getAuthChain();

        AuthChainType chain = mgr.getAuthChains().get(chainName);

        int millisToLive = 0;
        String keyAlias = "";

        boolean useSSLSession = false;

        for (AuthMechType amt : chain.getAuthMech()) {
            if (mechs.contains(amt.getName())) {
                for (ParamType pt : amt.getParams().getParam()) {
                    if (pt.getName().equalsIgnoreCase("millisToLive")) {
                        millisToLive = Integer.parseInt(pt.getValue());
                    }
                    if (pt.getName().equalsIgnoreCase("useSSLSessionID")
                            && pt.getValue().equalsIgnoreCase("true")) {
                        useSSLSession = true;
                    } else if (pt.getName().equalsIgnoreCase("keyAlias")) {
                        keyAlias = pt.getValue();
                    }
                }
            }
        }

        DateTime now = new DateTime();
        DateTime expires = now.plusMillis(millisToLive);

        com.tremolosecurity.lastmile.LastMile lastmile = null;

        try {
            lastmile = new com.tremolosecurity.lastmile.LastMile("/", now, expires, 0, "NONE");
        } catch (URISyntaxException e) {
            //not possible
        }

        lastmile.getAttributes().add(new Attribute("DN", authCtl.getAuthInfo().getUserDN()));
        lastmile.getAttributes().add(new Attribute("CLIENT_IP", request.getRemoteAddr()));

        if (useSSLSession) {

            Object sessionID = request.getAttribute("javax.servlet.request.ssl_session_id");
            if (sessionID instanceof byte[]) {
                sessionID = new String(Base64.encodeBase64((byte[]) sessionID));
            }

            lastmile.getAttributes().add(new Attribute("SSL_SESSION_ID", (String) sessionID));
        }

        try {
            cookie.setValue(new StringBuilder().append('"')
                    .append(lastmile.generateLastMileToken(mgr.getSecretKey(keyAlias))).append('"').toString());
        } catch (Exception e) {
            throw new ServletException("Could not encrypt persistent cookie", e);
        }

        cookie.setMaxAge(millisToLive / 1000);

    }

}