package com.doumee.lib_coremodel.http.cookie.store;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.text.TextUtils;
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import android.util.Log;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.Set;
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import java.util.concurrent.ConcurrentHashMap;
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import okhttp3.Cookie;
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import okhttp3.HttpUrl;
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/**
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* Created by goldze on 2017/5/13.
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*/
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public class PersistentCookieStore implements CookieStore {
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private static final String LOG_TAG = "PersistentCookieStore";
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//cookie使用prefs保存
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private static final String COOKIE_PREFS = "habit_cookie";
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//cookie持久化的统一前缀
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private static final String COOKIE_NAME_PREFIX = "cookie_";
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private final HashMap<String, ConcurrentHashMap<String, Cookie>> cookies;
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private final SharedPreferences cookiePrefs;
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public PersistentCookieStore(Context context) {
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cookiePrefs = context.getSharedPreferences(COOKIE_PREFS, Context.MODE_PRIVATE);
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cookies = new HashMap<>();
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//将持久化的cookies缓存到内存中,数据结构为 Map<Url.host, Map<Cookie.name, Cookie>>
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Map<String, ?> prefsMap = cookiePrefs.getAll();
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for (Map.Entry<String, ?> entry : prefsMap.entrySet()) {
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if ((entry.getValue()) != null && !entry.getKey().startsWith(COOKIE_NAME_PREFIX)) {
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//获取url对应的所有cookie的key,用","分割
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String[] cookieNames = TextUtils.split((String) entry.getValue(), ",");
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for (String name : cookieNames) {
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//根据对应cookie的Key,从xml中获取cookie的真实值
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String encodedCookie = cookiePrefs.getString(COOKIE_NAME_PREFIX + name, null);
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if (encodedCookie != null) {
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Cookie decodedCookie = decodeCookie(encodedCookie);
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if (decodedCookie != null) {
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if (!cookies.containsKey(entry.getKey())) cookies.put(entry.getKey(), new ConcurrentHashMap<String, Cookie>());
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cookies.get(entry.getKey()).put(name, decodedCookie);
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}
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}
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}
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}
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}
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}
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private String getCookieToken(Cookie cookie) {
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return cookie.name() + "@" + cookie.domain();
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}
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/** 当前cookie是否过期 */
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private static boolean isCookieExpired(Cookie cookie) {
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return cookie.expiresAt() < System.currentTimeMillis();
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}
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/** 根据当前url获取所有需要的cookie,只返回没有过期的cookie */
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@Override
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public List<Cookie> loadCookie(HttpUrl url) {
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ArrayList<Cookie> ret = new ArrayList<>();
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if (cookies.containsKey(url.host())) {
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Collection<Cookie> urlCookies = cookies.get(url.host()).values();
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for (Cookie cookie : urlCookies) {
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if (isCookieExpired(cookie)) {
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removeCookie(url, cookie);
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} else {
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ret.add(cookie);
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}
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}
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}
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return ret;
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}
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/** 将url的所有Cookie保存在本地 */
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@Override
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public void saveCookie(HttpUrl url, List<Cookie> urlCookies) {
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if (!cookies.containsKey(url.host())) {
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cookies.put(url.host(), new ConcurrentHashMap<String, Cookie>());
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}
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for (Cookie cookie : urlCookies) {
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//当前cookie是否过期
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if (isCookieExpired(cookie)) {
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removeCookie(url, cookie);
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} else {
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saveCookie(url, cookie, getCookieToken(cookie));
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}
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}
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}
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@Override
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public void saveCookie(HttpUrl url, Cookie cookie) {
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if (!cookies.containsKey(url.host())) {
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cookies.put(url.host(), new ConcurrentHashMap<String, Cookie>());
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}
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//当前cookie是否过期
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if (isCookieExpired(cookie)) {
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removeCookie(url, cookie);
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} else {
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saveCookie(url, cookie, getCookieToken(cookie));
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}
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}
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/**
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* 保存cookie，并将cookies持久化到本地,数据结构为
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* Url.host -> Cookie1.name,Cookie2.name,Cookie3.name
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* cookie_Cookie1.name -> CookieString
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* cookie_Cookie2.name -> CookieString
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*/
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private void saveCookie(HttpUrl url, Cookie cookie, String name) {
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//内存缓存
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cookies.get(url.host()).put(name, cookie);
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//文件缓存
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SharedPreferences.Editor prefsWriter = cookiePrefs.edit();
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prefsWriter.putString(url.host(), TextUtils.join(",", cookies.get(url.host()).keySet()));
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prefsWriter.putString(COOKIE_NAME_PREFIX + name, encodeCookie(new SerializableHttpCookie(cookie)));
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prefsWriter.apply();
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}
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/** 根据url移除当前的cookie */
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@Override
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public boolean removeCookie(HttpUrl url, Cookie cookie) {
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String name = getCookieToken(cookie);
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if (cookies.containsKey(url.host()) && cookies.get(url.host()).containsKey(name)) {
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//内存移除
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cookies.get(url.host()).remove(name);
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//文件移除
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SharedPreferences.Editor prefsWriter = cookiePrefs.edit();
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if (cookiePrefs.contains(COOKIE_NAME_PREFIX + name)) {
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prefsWriter.remove(COOKIE_NAME_PREFIX + name);
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}
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prefsWriter.putString(url.host(), TextUtils.join(",", cookies.get(url.host()).keySet()));
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prefsWriter.apply();
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return true;
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} else {
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return false;
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}
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}
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@Override
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public boolean removeCookie(HttpUrl url) {
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if (cookies.containsKey(url.host())) {
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//文件移除
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Set<String> cookieNames = cookies.get(url.host()).keySet();
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SharedPreferences.Editor prefsWriter = cookiePrefs.edit();
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for (String cookieName : cookieNames) {
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if (cookiePrefs.contains(COOKIE_NAME_PREFIX + cookieName)) {
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prefsWriter.remove(COOKIE_NAME_PREFIX + cookieName);
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}
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}
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prefsWriter.remove(url.host()).apply();
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//内存移除
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cookies.remove(url.host());
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return true;
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} else {
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return false;
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}
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}
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@Override
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public boolean removeAllCookie() {
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SharedPreferences.Editor prefsWriter = cookiePrefs.edit();
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prefsWriter.clear().apply();
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cookies.clear();
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return true;
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}
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/** 获取所有的cookie */
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@Override
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public List<Cookie> getAllCookie() {
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List<Cookie> ret = new ArrayList<>();
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for (String key : cookies.keySet()){
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ret.addAll(cookies.get(key).values());
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}
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return ret;
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}
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@Override
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public List<Cookie> getCookie(HttpUrl url) {
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List<Cookie> ret = new ArrayList<>();
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Map<String, Cookie> mapCookie = cookies.get(url.host());
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if (mapCookie != null) {
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ret.addAll(mapCookie.values());
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}
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return ret;
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}
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/**
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* cookies 序列化成 string
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*
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* @param cookie 要序列化的cookie
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* @return 序列化之后的string
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*/
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private String encodeCookie(SerializableHttpCookie cookie) {
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if (cookie == null) {
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return null;
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}
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ByteArrayOutputStream os = new ByteArrayOutputStream();
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try {
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ObjectOutputStream outputStream = new ObjectOutputStream(os);
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outputStream.writeObject(cookie);
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} catch (IOException e) {
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Log.d(LOG_TAG, "IOException in encodeCookie", e);
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return null;
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}
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return byteArrayToHexString(os.toByteArray());
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}
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/**
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* 将字符串反序列化成cookies
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*
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* @param cookieString cookies string
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* @return cookie object
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*/
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private Cookie decodeCookie(String cookieString) {
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byte[] bytes = hexStringToByteArray(cookieString);
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ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
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Cookie cookie = null;
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try {
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ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream);
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cookie = ((SerializableHttpCookie) objectInputStream.readObject()).getCookie();
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} catch (IOException e) {
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Log.d(LOG_TAG, "IOException in decodeCookie", e);
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} catch (ClassNotFoundException e) {
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Log.d(LOG_TAG, "ClassNotFoundException in decodeCookie", e);
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}
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return cookie;
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}
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/**
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* 二进制数组转十六进制字符串
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*
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* @param bytes byte array to be converted
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* @return string containing hex values
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*/
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private String byteArrayToHexString(byte[] bytes) {
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StringBuilder sb = new StringBuilder(bytes.length * 2);
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for (byte element : bytes) {
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int v = element & 0xff;
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if (v < 16) {
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sb.append('0');
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}
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sb.append(Integer.toHexString(v));
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}
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return sb.toString().toUpperCase(Locale.US);
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}
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/**
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* 十六进制字符串转二进制数组
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*
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* @param hexString string of hex-encoded values
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* @return decoded byte array
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*/
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private byte[] hexStringToByteArray(String hexString) {
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int len = hexString.length();
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byte[] data = new byte[len / 2];
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for (int i = 0; i < len; i += 2) {
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data[i / 2] = (byte) ((Character.digit(hexString.charAt(i), 16) << 4) + Character.digit(hexString.charAt(i + 1), 16));
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}
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return data;
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}
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}
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