com.stackmob.sdk.util.StackMobCookieManager Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of stackmob-java-client-sdk Show documentation
The Stackmob Java SDK.
The newest version!
/**
 * Copyright 2012 StackMob
 *
 * 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.stackmob.sdk.util;

import com.stackmob.sdk.util.Pair;
import org.scribe.model.Response;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * Used internally by the sdk to manage OAuth1 cookies.
 */
public class StackMobCookieManager {

    protected static final String SetCookieHeaderKey = "Set-Cookie";
    protected static final String EXPIRES = "Expires";
    protected static final String SESSION_PREFIX = "session_";

    protected final ConcurrentHashMap> cookies = new ConcurrentHashMap>();


    public Map> getCookies() {
        return cookies;
    }

    public Map.Entry getSessionCookie() {
       for(String cookieName : cookies.keySet()) {
           if(cookieName.startsWith(SESSION_PREFIX)) return cookies.get(cookieName);
       }
       return null;
    }

    public void storeCookies(Response resp) {
        storeCookie(resp.getHeaders().get(SetCookieHeaderKey));
    }
    
    protected void storeCookie(String cookieString) {
        addToCookieMap(cookies, cookieString);
    }
    
    protected void addToCookieMap(Map> map, String cookieString) {
        if(cookieString != null) {
            String session = null;
            String expires = null;
            for(String cookie : cookieString.split(";")) {
                if(cookie.startsWith(SESSION_PREFIX)) session = cookie;
                if(cookie.startsWith(EXPIRES)) expires = cookie;
            }
            if(session != null) {
                String[] sessionSplit = session.split("=");
                if(sessionSplit.length == 2) {
                    Date expiryDate = null;
                    if(expires != null) {
                        String[] expiresSplit = expires.split("=");
                        if(expiresSplit.length == 2) {
                            try {
                                expiryDate = new SimpleDateFormat("EEE, dd-MMM-yyyy hh:mm:ss z").parse(expiresSplit[1]);
                            } catch (ParseException e) {
                                //do nothing
                            }
                        }
                    }
                    map.put(sessionSplit[0], new Pair(sessionSplit[1], expiryDate));
                }
            }
        }
    }
    
    protected String cookieMapToHeaderString(Map> map) {
        //build cookie header
        StringBuilder cookieBuilder = new StringBuilder();
        boolean first = true;
        for(Map.Entry> c : cookies.entrySet()) {
            //only use unexpired cookies
            if (isUnexpired(c.getValue())) {
                if(!first) {
                    cookieBuilder.append("; ");
                }
                first = false;
                cookieBuilder.append(c.getKey()).append("=").append(c.getValue().getKey());
            }
        }
        return cookieBuilder.toString();
    }

    private boolean isUnexpired(Map.Entry values) {
        Date expires = values.getValue();
        return expires == null || new Date().compareTo(expires) == 1;
    }

    public void clear() {
        cookies.clear();
    }

    public String cookieHeader() {
        return cookieMapToHeaderString(cookies);
    }
}