Android basic persistent cookie manager for Volley. This cookie store wraps the default CookieManager store to store the session cookie. It use's Gson to json serialize the cookie and store it as a json string in SharedPreferences.

PersistentCookieStore.java

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Lukas Zorich
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import android.content.Context;
import android.content.SharedPreferences;

import com.google.gson.Gson;

import java.net.CookieManager;
import java.net.CookieStore;
import java.net.HttpCookie;
import java.net.URI;
import java.util.List;

/**
 * Repository for cookies. CookieManager will store cookies of every incoming HTTP response into
 * CookieStore, and retrieve cookies for every outgoing HTTP request.
 * <p/>
 * Cookies are stored in {@link android.content.SharedPreferences} and will persist on the
 * user's device between application session. {@link com.google.gson.Gson} is used to serialize
 * the cookies into a json string in order to be able to save the cookie to
 * {@link android.content.SharedPreferences}
 * <p/>
 * Created by lukas on 17-11-14.
 */
public class PersistentCookieStore implements CookieStore {

    /**
     * The default preferences string.
     */
    private final static String PREF_DEFAULT_STRING = "";

    /**
     * The preferences name.
     */
    private final static String PREFS_NAME = PersistentCookieStore.class.getName();

    /**
     * The preferences session cookie key.
     */
    private final static String PREF_SESSION_COOKIE = "session_cookie";

    private CookieStore mStore;
    private Context mContext;

    /**
     * @param context The application context
     */
    public PersistentCookieStore(Context context) {
        // prevent context leaking by getting the application context
        mContext = context.getApplicationContext();

        // get the default in memory store and if there is a cookie stored in shared preferences,
        // we added it to the cookie store
        mStore = new CookieManager().getCookieStore();
        String jsonSessionCookie = getJsonSessionCookieString();
        if (!jsonSessionCookie.equals(PREF_DEFAULT_STRING)) {
            Gson gson = new Gson();
            HttpCookie cookie = gson.fromJson(jsonSessionCookie, HttpCookie.class);
            mStore.add(URI.create(cookie.getDomain()), cookie);
        }
    }

    @Override
    public void add(URI uri, HttpCookie cookie) {
        if (cookie.getName().equals("sessionid")) {
            // if the cookie that the cookie store attempt to add is a session cookie,
            // we remove the older cookie and save the new one in shared preferences
            remove(URI.create(cookie.getDomain()), cookie);
            saveSessionCookie(cookie);
        }

        mStore.add(URI.create(cookie.getDomain()), cookie);
    }

    @Override
    public List<HttpCookie> get(URI uri) {
        return mStore.get(uri);
    }

    @Override
    public List<HttpCookie> getCookies() {
        return mStore.getCookies();
    }

    @Override
    public List<URI> getURIs() {
        return mStore.getURIs();
    }

    @Override
    public boolean remove(URI uri, HttpCookie cookie) {
        return mStore.remove(uri, cookie);
    }

    @Override
    public boolean removeAll() {
        return mStore.removeAll();
    }

    private String getJsonSessionCookieString() {
        return getPrefs().getString(PREF_SESSION_COOKIE, PREF_DEFAULT_STRING);
    }

    /**
     * Saves the HttpCookie to SharedPreferences as a json string.
     *
     * @param cookie The cookie to save in SharedPreferences.
     */
    private void saveSessionCookie(HttpCookie cookie) {
        Gson gson = new Gson();
        String jsonSessionCookieString = gson.toJson(cookie);
        SharedPreferences.Editor editor = getPrefs().edit();
        editor.putString(PREF_SESSION_COOKIE, jsonSessionCookieString);
        editor.apply();
    }

    private SharedPreferences getPrefs() {
        return mContext.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
    }
}

Where are you removing cookies from SharedPreferences? It looks like you remove cookies from the CookieStore but only from SharedPreferences when adding a new cookie.

This also works for OKHTTP3 + Retrofit 2.

For some reason, other solutions specific to Retrofit is giving me issues with a nodejs using passportjs. The socket.handshake.session does not store passport user even if user is already logged in. I TRIED THIS AND IT WORKED! Session is persistent and can now retrieve passport object from socket session :)

        PersistentCookieStore cookieStore = new PersistentCookieStore(context);
        CookieManager cookieManager = new CookieManager(cookieStore, CookiePolicy.ACCEPT_ORIGINAL_SERVER);
        CookieHandler.setDefault(cookieManager);

        return new OkHttpClient.Builder()
                .sslSocketFactory(getSslSocketFactory(caInput), getTrustManager())
                .addNetworkInterceptor(new StethoInterceptor())
                .addInterceptor(loggingInterceptor)
                .cookieJar(new JavaNetCookieJar(cookieManager))
                .build();

@lezorich, i get a cookie when i login to a website and i need to send that cookie with each request i make. can you please post a sample code for doing the same ?

This is my current code:

    RequestQueue queue = VolleySingleton.getInstance(this.getApplicationContext()).
            getRequestQueue();

    String url = "https://my_api_url";

    JsonObjectRequest jsObjRequest = new JsonObjectRequest
            (Request.Method.POST, url, null, new Response.Listener<JSONObject>() {

                @Override
                public void onResponse(JSONObject response) {
                    Log.i(">>>>>resp: ", "Response: " + response.toString());
                }
            }, new Response.ErrorListener() {

                @Override
                public void onErrorResponse(VolleyError error) {
                    // TODO Auto-generated method stub
                    Log.i(">>>>>resp: ", "Error: " + error.toString());
                }
            }) {
        @Override
        protected Map<String, String> getParams() {
            Map<String, String> params = new HashMap<String, String>();
            params.put("aaaa", "dddd");
            return params;
        }

    };
    
    VolleySingleton.getInstance(this).addToRequestQueue(jsObjRequest);

Volley is giving ServorError when this CookieStore is bieng used, If I remove the line to set this, Volley works file but the response returns invalid session.
Do you have any idea why this happens like this?

@lezorich what happens when cookies are removed? Won't it still be stored in the persistent storage?

Hey Lukas,
Thank you for this!
I am facing one issue, though. If I kill the app, and then restart it, I am being logged out. Is this the expected behaviour?
Thank you, again!

@lezorich Hello Lukas,
I have the same problem as @ab5y: if I kill the application and restart it, I am logged out. However, if I only "quit" by pressing back, I am still logged in.
Do you have any idea why it behaves like that?
Thanks for this gist!

Hello, there is another easy way to maintain cookies session and that is to add this line in a class that is extended with APPLICATION class: CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));

Hello, there is another easy way to maintain cookies session and that is to add this line in a class that is extended with APPLICATION class: CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));

@asadullah06 did it work for you ? so cookies are stored automatic and no need to explicitly send them in subsequent requests