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@ -0,0 +1,807 @@
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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.gtask.remote;
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import android.accounts.Account;
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import android.accounts.AccountManager;
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import android.accounts.AccountManagerFuture;
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import android.app.Activity;
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import android.os.Bundle;
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import android.text.TextUtils;
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import android.util.Log;
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import net.micode.notes.gtask.data.Node;
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import net.micode.notes.gtask.data.Task;
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import net.micode.notes.gtask.data.TaskList;
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import net.micode.notes.gtask.exception.ActionFailureException;
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import net.micode.notes.gtask.exception.NetworkFailureException;
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import net.micode.notes.tool.GTaskStringUtils;
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import net.micode.notes.ui.NotesPreferenceActivity;
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import org.apache.http.HttpEntity;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.ClientProtocolException;
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import org.apache.http.client.entity.UrlEncodedFormEntity;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.cookie.Cookie;
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import org.apache.http.impl.client.BasicCookieStore;
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import org.apache.http.impl.client.DefaultHttpClient;
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import org.apache.http.message.BasicNameValuePair;
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import org.apache.http.params.BasicHttpParams;
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import org.apache.http.params.HttpConnectionParams;
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import org.apache.http.params.HttpParams;
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import org.apache.http.params.HttpProtocolParams;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.Inflater;
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import java.util.zip.InflaterInputStream;
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/*
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* GTaskClient类是一个用于与Google任务服务进行交互的客户端类。
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* 该类提供了登录、创建任务、创建任务列表、更新任务、移动任务、删除任务等功能。
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*/
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public class GTaskClient {
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private static final String TAG = GTaskClient.class.getSimpleName();
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private static final String GTASK_URL = "https://mail.google.com/tasks/";
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private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig";
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private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig";
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private static GTaskClient mInstance = null;
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private DefaultHttpClient mHttpClient;
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private String mGetUrl;
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private String mPostUrl;
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private long mClientVersion;
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private boolean mLoggedin;
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private long mLastLoginTime;
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private int mActionId;
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private Account mAccount;
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private JSONArray mUpdateArray;
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/*
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* 私有构造函数,初始化成员变量。
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*/
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private GTaskClient() {
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mHttpClient = null; // 初始化HttpClient为null
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mGetUrl = GTASK_GET_URL; // 初始化GET和POST请求的URL
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mPostUrl = GTASK_POST_URL;
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mClientVersion = -1; // 初始化客户端版本号为-1
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mLoggedin = false; // 初始化登录状态为false
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mLastLoginTime = 0; // 初始化最后一次登录时间为0
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mActionId = 1; // 初始化操作ID为1
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mAccount = null; // 初始化账户为null
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mUpdateArray = null; // 初始化更新数组为null
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}
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/*
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* 获取GTaskClient的单例实例。
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* @return GTaskClient的单例实例
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*/
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public static synchronized GTaskClient getInstance() {
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// 如果mInstance为null,创建一个新的GTaskClient实例
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if (mInstance == null) {
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mInstance = new GTaskClient();
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}
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// 返回GTaskClient的单例实例
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return mInstance;
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}
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/*
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* 登录Google任务服务。
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* @param activity 当前活动
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* @return 是否登录成功
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*/
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public boolean login(Activity activity) {
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// we suppose that the cookie would expire after 5 minutes
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// 假设cookie在5分钟后过期,需要重新登录
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// then we need to re-login
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final long interval = 1000 * 60 * 5;
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if (mLastLoginTime + interval < System.currentTimeMillis()) {
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mLoggedin = false;
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}
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// need to re-login after account switch
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// 需要重新登录以切换账户
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if (mLoggedin
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&& !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity
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.getSyncAccountName(activity))) {
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mLoggedin = false;
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}
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// 如果已经登录,直接返回true
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if (mLoggedin) {
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Log.d(TAG, "already logged in");
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return true;
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}
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// 更新最后一次登录时间
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mLastLoginTime = System.currentTimeMillis();
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// 登录Google账户
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String authToken = loginGoogleAccount(activity, false);
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if (authToken == null) {
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Log.e(TAG, "login google account failed");
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return false;
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}
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// login with custom domain if necessary
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// 如果账户不是gmail.com或googlemail.com,尝试使用自定义域名登录
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if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase()
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.endsWith("googlemail.com"))) {
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StringBuilder url = new StringBuilder(GTASK_URL).append("a/");
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int index = mAccount.name.indexOf('@') + 1;
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String suffix = mAccount.name.substring(index);
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url.append(suffix + "/");
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mGetUrl = url.toString() + "ig";
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mPostUrl = url.toString() + "r/ig";
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if (tryToLoginGtask(activity, authToken)) {
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mLoggedin = true;
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}
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}
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// try to login with google official url
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// 尝试使用Google官方URL登录
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if (!mLoggedin) {
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mGetUrl = GTASK_GET_URL;
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mPostUrl = GTASK_POST_URL;
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if (!tryToLoginGtask(activity, authToken)) {
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return false;
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}
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}
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// 登录成功
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mLoggedin = true;
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return true;
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}
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/*
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* 登录Google账户并获取授权令牌。
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* @param activity 当前活动
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* @param invalidateToken 是否使授权令牌失效
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* @return 授权令牌,如果登录失败则返回null
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*/
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private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
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String authToken;
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// 获取AccountManager实例
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AccountManager accountManager = AccountManager.get(activity);
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// 获取所有Google账户
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Account[] accounts = accountManager.getAccountsByType("com.google");
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// 如果没有可用的Google账户,记录错误日志并返回null
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if (accounts.length == 0) {
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Log.e(TAG, "there is no available google account");
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return null;
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}
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// 获取设置中的同步账户名称
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String accountName = NotesPreferenceActivity.getSyncAccountName(activity);
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Account account = null;
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// 遍历所有Google账户,查找与设置中同步账户名称匹配的账户
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for (Account a : accounts) {
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if (a.name.equals(accountName)) {
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account = a;
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break;
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}
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}
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// 如果找到匹配的账户,将其赋值给mAccount
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if (account != null) {
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mAccount = account;
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} else {
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// 如果没有找到匹配的账户,记录错误日志并返回null
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Log.e(TAG, "unable to get an account with the same name in the settings");
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return null;
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}
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// get the token now
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// 获取授权令牌
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AccountManagerFuture<Bundle> accountManagerFuture = accountManager.getAuthToken(account,
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"goanna_mobile", null, activity, null, null);
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try {
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// 获取授权令牌的Bundle
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Bundle authTokenBundle = accountManagerFuture.getResult();
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// 从Bundle中获取授权令牌
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authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN);
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// 如果需要使授权令牌失效,使令牌失效并重新获取
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if (invalidateToken) {
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accountManager.invalidateAuthToken("com.google", authToken);
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loginGoogleAccount(activity, false);
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}
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} catch (Exception e) {
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// 如果获取授权令牌失败,记录错误日志并返回null
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Log.e(TAG, "get auth token failed");
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authToken = null;
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}
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return authToken; // 返回授权令牌
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}
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/*
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* 尝试登录Google任务服务。
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* @param activity 当前活动
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* @param authToken 授权令牌
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* @return 是否登录成功
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*/
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private boolean tryToLoginGtask(Activity activity, String authToken) {
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// 尝试使用当前授权令牌登录Google任务服务
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if (!loginGtask(authToken)) {
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// maybe the auth token is out of date, now let's invalidate the
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// token and try again
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// 如果登录失败,可能是授权令牌已过期,使令牌失效并重新获取
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authToken = loginGoogleAccount(activity, true);
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if (authToken == null) {
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Log.e(TAG, "login google account failed");
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return false;
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}
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// 使用新的授权令牌再次尝试登录Google任务服务
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if (!loginGtask(authToken)) {
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Log.e(TAG, "login gtask failed");
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return false;
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}
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}
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return true;
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}
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/*
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* 使用授权令牌登录Google任务服务。
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* @param authToken 授权令牌
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* @return 是否登录成功
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*/
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private boolean loginGtask(String authToken) {
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// 设置连接超时和套接字超时
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int timeoutConnection = 10000;
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int timeoutSocket = 15000;
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HttpParams httpParameters = new BasicHttpParams();
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HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
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HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
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// 创建DefaultHttpClient实例
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mHttpClient = new DefaultHttpClient(httpParameters);
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// 创建BasicCookieStore实例并设置到HttpClient中
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BasicCookieStore localBasicCookieStore = new BasicCookieStore();
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mHttpClient.setCookieStore(localBasicCookieStore);
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// 设置HttpClient不使用Expect-Continue
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HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false);
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// login gtask
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// 登录Google任务服务
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try {
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// 构建登录URL
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String loginUrl = mGetUrl + "?auth=" + authToken;
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HttpGet httpGet = new HttpGet(loginUrl);
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HttpResponse response = null;
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response = mHttpClient.execute(httpGet);
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// get the cookie now
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// 获取cookie
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List<Cookie> cookies = mHttpClient.getCookieStore().getCookies();
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boolean hasAuthCookie = false;
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for (Cookie cookie : cookies) {
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if (cookie.getName().contains("GTL")) {
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hasAuthCookie = true;
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}
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}
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if (!hasAuthCookie) {
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Log.w(TAG, "it seems that there is no auth cookie");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// get the client version
|
|
|
|
|
// 获取客户端版本
|
|
|
|
|
String resString = getResponseContent(response.getEntity());
|
|
|
|
|
String jsBegin = "_setup(";
|
|
|
|
|
String jsEnd = ")}</script>";
|
|
|
|
|
int begin = resString.indexOf(jsBegin);
|
|
|
|
|
int end = resString.lastIndexOf(jsEnd);
|
|
|
|
|
String jsString = null;
|
|
|
|
|
if (begin != -1 && end != -1 && begin < end) {
|
|
|
|
|
jsString = resString.substring(begin + jsBegin.length(), end);
|
|
|
|
|
}
|
|
|
|
|
JSONObject js = new JSONObject(jsString);
|
|
|
|
|
mClientVersion = js.getLong("v");
|
|
|
|
|
} catch (JSONException e) {
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
return false;
|
|
|
|
|
} catch (Exception e) {
|
|
|
|
|
// simply catch all exceptions
|
|
|
|
|
// 捕获所有异常
|
|
|
|
|
Log.e(TAG, "httpget gtask_url failed");
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 获取操作ID并递增。
|
|
|
|
|
* @return 当前操作ID
|
|
|
|
|
*/
|
|
|
|
|
private int getActionId() {
|
|
|
|
|
// 返回当前操作ID并递增
|
|
|
|
|
return mActionId++;
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 创建HttpPost请求。
|
|
|
|
|
* @return 创建的HttpPost请求
|
|
|
|
|
*/
|
|
|
|
|
private HttpPost createHttpPost() {
|
|
|
|
|
// 创建HttpPost请求,设置请求URL
|
|
|
|
|
HttpPost httpPost = new HttpPost(mPostUrl);
|
|
|
|
|
// 设置请求头,指定Content-Type为application/x-www-form-urlencoded,字符集为UTF-8
|
|
|
|
|
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
|
|
|
|
|
httpPost.setHeader("AT", "1");
|
|
|
|
|
// 设置请求头,指定AT为1
|
|
|
|
|
return httpPost;
|
|
|
|
|
// 返回创建的HttpPost请求
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 从HttpEntity中获取响应内容并返回字符串形式。
|
|
|
|
|
* 支持处理gzip和deflate压缩编码。
|
|
|
|
|
* @param entity HTTP响应实体
|
|
|
|
|
* @return 响应内容的字符串形式
|
|
|
|
|
* @throws IOException 如果读取输入流时发生错误
|
|
|
|
|
*/
|
|
|
|
|
private String getResponseContent(HttpEntity entity) throws IOException {
|
|
|
|
|
String contentEncoding = null;
|
|
|
|
|
// 检查HttpEntity是否包含Content-Encoding头部
|
|
|
|
|
if (entity.getContentEncoding() != null) {
|
|
|
|
|
// 获取Content-Encoding的值
|
|
|
|
|
contentEncoding = entity.getContentEncoding().getValue();
|
|
|
|
|
// 记录日志,显示当前的Content-Encoding
|
|
|
|
|
Log.d(TAG, "encoding: " + contentEncoding);
|
|
|
|
|
}
|
|
|
|
|
// 获取HttpEntity的原始输入流
|
|
|
|
|
InputStream input = entity.getContent();
|
|
|
|
|
// 如果Content-Encoding是gzip,则使用GZIPInputStream解压缩
|
|
|
|
|
if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
|
|
|
|
|
input = new GZIPInputStream(entity.getContent());
|
|
|
|
|
} else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {
|
|
|
|
|
// 如果Content-Encoding是deflate,则使用InflaterInputStream解压缩
|
|
|
|
|
Inflater inflater = new Inflater(true);
|
|
|
|
|
input = new InflaterInputStream(entity.getContent(), inflater);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
try {
|
|
|
|
|
// 创建InputStreamReader,用于将字节流转换为字符流
|
|
|
|
|
InputStreamReader isr = new InputStreamReader(input);
|
|
|
|
|
// 创建BufferedReader,用于逐行读取字符流
|
|
|
|
|
BufferedReader br = new BufferedReader(isr);
|
|
|
|
|
// 创建StringBuilder,用于存储读取到的内容
|
|
|
|
|
StringBuilder sb = new StringBuilder();
|
|
|
|
|
// 循环读取输入流中的每一行
|
|
|
|
|
while (true) {
|
|
|
|
|
String buff = br.readLine();
|
|
|
|
|
// 如果读取到null,表示已经到达流的末尾,返回StringBuilder中的内容
|
|
|
|
|
if (buff == null) {
|
|
|
|
|
return sb.toString();
|
|
|
|
|
}
|
|
|
|
|
// 将读取到的行追加到StringBuilder中
|
|
|
|
|
sb = sb.append(buff);
|
|
|
|
|
}
|
|
|
|
|
} finally {
|
|
|
|
|
// 确保输入流在方法结束时被关闭
|
|
|
|
|
input.close();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 发送POST请求并返回响应的JSONObject。
|
|
|
|
|
* @param js 要发送的请求数据,以JSONObject形式表示
|
|
|
|
|
* @return 服务器响应的JSONObject
|
|
|
|
|
* @throws NetworkFailureException 如果网络请求失败
|
|
|
|
|
* @throws ActionFailureException 如果操作失败(例如未登录或响应内容无法转换为JSONObject)
|
|
|
|
|
*/
|
|
|
|
|
private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
|
|
|
|
|
// 检查用户是否已登录,如果未登录则抛出异常
|
|
|
|
|
if (!mLoggedin) {
|
|
|
|
|
Log.e(TAG, "please login first");
|
|
|
|
|
throw new ActionFailureException("not logged in");
|
|
|
|
|
}
|
|
|
|
|
// 创建HttpPost对象
|
|
|
|
|
HttpPost httpPost = createHttpPost();
|
|
|
|
|
try {
|
|
|
|
|
// 创建一个LinkedList来存储请求参数
|
|
|
|
|
LinkedList<BasicNameValuePair> list = new LinkedList<BasicNameValuePair>();
|
|
|
|
|
// 将请求数据(JSONObject)转换为字符串,并添加到请求参数列表中
|
|
|
|
|
list.add(new BasicNameValuePair("r", js.toString()));
|
|
|
|
|
// 创建UrlEncodedFormEntity对象,用于将请求参数编码为表单格式
|
|
|
|
|
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8");
|
|
|
|
|
// 将请求实体设置到HttpPost对象中
|
|
|
|
|
httpPost.setEntity(entity);
|
|
|
|
|
// execute the post
|
|
|
|
|
// 执行POST请求
|
|
|
|
|
HttpResponse response = mHttpClient.execute(httpPost);
|
|
|
|
|
// 获取响应内容并转换为字符串
|
|
|
|
|
String jsString = getResponseContent(response.getEntity());
|
|
|
|
|
// 将响应内容字符串转换为JSONObject并返回
|
|
|
|
|
return new JSONObject(jsString);
|
|
|
|
|
|
|
|
|
|
} catch (ClientProtocolException e) {
|
|
|
|
|
// 捕获并记录HTTP协议异常
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
throw new NetworkFailureException("postRequest failed");
|
|
|
|
|
} catch (IOException e) {
|
|
|
|
|
// 捕获并记录IO异常
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
throw new NetworkFailureException("postRequest failed");
|
|
|
|
|
} catch (JSONException e) {
|
|
|
|
|
// 捕获并记录JSON解析异常
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
throw new ActionFailureException("unable to convert response content to jsonobject");
|
|
|
|
|
} catch (Exception e) {
|
|
|
|
|
// 捕获并记录其他异常
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
throw new ActionFailureException("error occurs when posting request");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 创建一个新的任务,并将其上传到服务器。
|
|
|
|
|
* @param task 要创建的任务对象
|
|
|
|
|
* @throws NetworkFailureException 如果网络请求失败
|
|
|
|
|
* @throws ActionFailureException 如果操作失败(例如JSON处理失败)
|
|
|
|
|
*/
|
|
|
|
|
public void createTask(Task task) throws NetworkFailureException {
|
|
|
|
|
// 提交更新操作
|
|
|
|
|
commitUpdate();
|
|
|
|
|
try {
|
|
|
|
|
// 创建一个新的JSONObject,用于存储POST请求的数据
|
|
|
|
|
JSONObject jsPost = new JSONObject();
|
|
|
|
|
// 创建一个JSONArray,用于存储任务的创建操作
|
|
|
|
|
JSONArray actionList = new JSONArray();
|
|
|
|
|
|
|
|
|
|
// action_list
|
|
|
|
|
// 将任务的创建操作添加到actionList中
|
|
|
|
|
actionList.put(task.getCreateAction(getActionId()));
|
|
|
|
|
// 将actionList添加到jsPost中
|
|
|
|
|
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
|
|
|
|
|
|
|
|
|
|
// client_version
|
|
|
|
|
// 添加客户端版本信息到jsPost中
|
|
|
|
|
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
|
|
|
|
|
|
|
|
|
|
// post
|
|
|
|
|
// 发送POST请求,并将响应内容转换为JSONObject
|
|
|
|
|
JSONObject jsResponse = postRequest(jsPost);
|
|
|
|
|
// 从响应中获取结果数组,并获取第一个结果
|
|
|
|
|
JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
|
|
|
|
|
GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
|
|
|
|
|
// 从结果中获取新创建任务的ID,并设置到任务对象中
|
|
|
|
|
task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
|
|
|
|
|
|
|
|
|
|
} catch (JSONException e) {、
|
|
|
|
|
// 捕获并记录JSON解析异常
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
throw new ActionFailureException("create task: handing jsonobject failed");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 创建一个新的任务列表,并将其上传到服务器。
|
|
|
|
|
* @param tasklist 要创建的任务列表对象
|
|
|
|
|
* @throws NetworkFailureException 如果网络请求失败
|
|
|
|
|
* @throws ActionFailureException 如果操作失败(例如JSON处理失败)
|
|
|
|
|
*/
|
|
|
|
|
public void createTaskList(TaskList tasklist) throws NetworkFailureException {
|
|
|
|
|
// 提交更新操作
|
|
|
|
|
commitUpdate();
|
|
|
|
|
try {
|
|
|
|
|
// 创建一个新的JSONObject,用于存储POST请求的数据
|
|
|
|
|
JSONObject jsPost = new JSONObject();
|
|
|
|
|
// 创建一个JSONArray,用于存储任务列表的创建操作
|
|
|
|
|
JSONArray actionList = new JSONArray();
|
|
|
|
|
|
|
|
|
|
// action_list
|
|
|
|
|
// 将任务列表的创建操作添加到actionList中
|
|
|
|
|
actionList.put(tasklist.getCreateAction(getActionId()));
|
|
|
|
|
// 将actionList添加到jsPost中
|
|
|
|
|
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
|
|
|
|
|
|
|
|
|
|
// client version
|
|
|
|
|
// 添加客户端版本信息到jsPost中
|
|
|
|
|
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
|
|
|
|
|
|
|
|
|
|
// post
|
|
|
|
|
// 发送POST请求,并将响应内容转换为JSONObject
|
|
|
|
|
JSONObject jsResponse = postRequest(jsPost);
|
|
|
|
|
// 从响应中获取结果数组,并获取第一个结果
|
|
|
|
|
JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
|
|
|
|
|
GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
|
|
|
|
|
// 从结果中获取新创建任务列表的ID,并设置到任务列表对象中
|
|
|
|
|
tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
|
|
|
|
|
|
|
|
|
|
} catch (JSONException e) {
|
|
|
|
|
// 捕获并记录JSON解析异常
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
throw new ActionFailureException("create tasklist: handing jsonobject failed");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 提交所有未完成的更新操作到服务器。
|
|
|
|
|
* @throws NetworkFailureException 如果网络请求失败
|
|
|
|
|
* @throws ActionFailureException 如果操作失败(例如JSON处理失败)
|
|
|
|
|
*/
|
|
|
|
|
public void commitUpdate() throws NetworkFailureException {
|
|
|
|
|
// 检查是否有未完成的更新操作
|
|
|
|
|
if (mUpdateArray != null) {
|
|
|
|
|
try {
|
|
|
|
|
// 创建一个新的JSONObject,用于存储POST请求的数据
|
|
|
|
|
JSONObject jsPost = new JSONObject();
|
|
|
|
|
|
|
|
|
|
// action_list
|
|
|
|
|
// 将未完成的更新操作数组添加到jsPost中
|
|
|
|
|
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray);
|
|
|
|
|
|
|
|
|
|
// client_version
|
|
|
|
|
// 添加客户端版本信息到jsPost中
|
|
|
|
|
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
|
|
|
|
|
// 发送POST请求
|
|
|
|
|
postRequest(jsPost);
|
|
|
|
|
// 提交成功后,清空更新操作数组
|
|
|
|
|
mUpdateArray = null;
|
|
|
|
|
} catch (JSONException e) {
|
|
|
|
|
// 捕获并记录JSON解析异常
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
throw new ActionFailureException("commit update: handing jsonobject failed");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 将一个节点添加到更新操作数组中,并在必要时提交更新操作。
|
|
|
|
|
* @param node 要添加的节点对象
|
|
|
|
|
* @throws NetworkFailureException 如果网络请求失败
|
|
|
|
|
*/
|
|
|
|
|
public void addUpdateNode(Node node) throws NetworkFailureException {
|
|
|
|
|
// 检查节点是否为空
|
|
|
|
|
if (node != null) {
|
|
|
|
|
// too many update items may result in an error
|
|
|
|
|
// set max to 10 items
|
|
|
|
|
// 如果更新操作数组中已经有超过10个项目,则提交更新操作
|
|
|
|
|
// 避免过多的更新操作导致错误
|
|
|
|
|
if (mUpdateArray != null && mUpdateArray.length() > 10) {
|
|
|
|
|
commitUpdate();
|
|
|
|
|
}
|
|
|
|
|
// 如果更新操作数组为空,则创建一个新的JSONArray
|
|
|
|
|
if (mUpdateArray == null)
|
|
|
|
|
mUpdateArray = new JSONArray();
|
|
|
|
|
// 将节点的更新操作添加到更新操作数组中
|
|
|
|
|
mUpdateArray.put(node.getUpdateAction(getActionId()));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
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* 将任务从一个任务列表移动到另一个任务列表。
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* @param task 要移动的任务对象
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* @param preParent 任务的原始父任务列表
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* @param curParent 任务的新父任务列表
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* @throws NetworkFailureException 如果网络请求失败
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* @throws ActionFailureException 如果操作失败(例如JSON处理失败)
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*/
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public void moveTask(Task task, TaskList preParent, TaskList curParent)
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throws NetworkFailureException {
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// 提交更新操作
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commitUpdate();
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try {
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// 创建一个新的JSONObject,用于存储POST请求的数据
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JSONObject jsPost = new JSONObject();
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// 创建一个JSONArray,用于存储任务的移动操作
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JSONArray actionList = new JSONArray();
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// 创建一个JSONObject,用于存储具体的移动操作
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JSONObject action = new JSONObject();
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// action_list
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// 设置移动操作的类型为"move"
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action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
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GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE);
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// 设置移动操作的ID
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action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
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// 设置要移动的任务的ID
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action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid());
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// 如果任务在同一个任务列表中移动,并且不是第一个任务,则设置前一个兄弟任务的ID
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if (preParent == curParent && task.getPriorSibling() != null) {
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// put prioring_sibing_id only if moving within the tasklist and
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// it is not the first one
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action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling());
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}
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// 设置任务的原始父任务列表的ID
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action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid());
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// 设置任务的新父任务列表的ID
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action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid());
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// 如果任务在不同的任务列表之间移动,则设置目标任务列表的ID
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if (preParent != curParent) {
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// put the dest_list only if moving between tasklists
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action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid());
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}
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// 将移动操作添加到actionList中
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actionList.put(action);
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// 将actionList添加到jsPost中
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jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
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// client_version
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// 添加客户端版本信息到jsPost中
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jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
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// 发送POST请求
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postRequest(jsPost);
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} catch (JSONException e) {
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// 捕获并记录JSON解析异常
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("move task: handing jsonobject failed");
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}
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}
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/*
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* 删除一个节点,并将其标记为已删除状态。
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* @param node 要删除的节点对象
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* @throws NetworkFailureException 如果网络请求失败
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* @throws ActionFailureException 如果操作失败(例如JSON处理失败)
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*/
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public void deleteNode(Node node) throws NetworkFailureException {
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// 提交更新操作
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commitUpdate();
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try {
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// 创建一个新的JSONObject,用于存储POST请求的数据
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JSONObject jsPost = new JSONObject();
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// 创建一个JSONArray,用于存储节点的删除操作
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JSONArray actionList = new JSONArray();
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// action_list
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// 将节点标记为已删除
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node.setDeleted(true);
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// 获取节点的更新操作,并将其添加到actionList中
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actionList.put(node.getUpdateAction(getActionId()));
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// 将actionList添加到jsPost中
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jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
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// client_version
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// 添加客户端版本信息到jsPost中
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jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
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// 发送POST请求
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postRequest(jsPost);
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// 提交成功后,清空更新操作数组
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mUpdateArray = null;
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} catch (JSONException e) {
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// 捕获并记录JSON解析异常
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("delete node: handing jsonobject failed");
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}
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}
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/*
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* 获取所有任务列表,并返回一个包含任务列表的JSONArray。
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* @return 包含任务列表的JSONArray
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* @throws NetworkFailureException 如果网络请求失败
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* @throws ActionFailureException 如果操作失败(例如未登录或JSON处理失败)
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*/
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public JSONArray getTaskLists() throws NetworkFailureException {
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// 检查用户是否已登录,如果未登录则抛出异常
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if (!mLoggedin) {
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Log.e(TAG, "please login first");
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throw new ActionFailureException("not logged in");
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}
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try {
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// 创建一个HttpGet对象,用于发送GET请求
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HttpGet httpGet = new HttpGet(mGetUrl);
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HttpResponse response = null;
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// 执行GET请求,并获取响应
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response = mHttpClient.execute(httpGet);
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// get the task list
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// 获取响应内容并转换为字符串
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String resString = getResponseContent(response.getEntity());
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// 从响应内容中提取包含任务列表的JSON字符串
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String jsBegin = "_setup(";
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String jsEnd = ")}</script>";
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int begin = resString.indexOf(jsBegin);
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int end = resString.lastIndexOf(jsEnd);
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String jsString = null;
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if (begin != -1 && end != -1 && begin < end) {
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jsString = resString.substring(begin + jsBegin.length(), end);
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}
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// 将提取的JSON字符串转换为JSONObject
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JSONObject js = new JSONObject(jsString);
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// 从JSONObject中获取任务列表的JSONArray并返回
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return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS);
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} catch (ClientProtocolException e) {
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// 捕获并记录HTTP协议异常
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new NetworkFailureException("gettasklists: httpget failed");
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} catch (IOException e) {
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// 捕获并记录IO异常
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new NetworkFailureException("gettasklists: httpget failed");
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} catch (JSONException e) {
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// 捕获并记录JSON解析异常
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("get task lists: handing jasonobject failed");
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}
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}
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/*
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* 获取指定任务列表中的所有任务,并返回一个包含任务的JSONArray。
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* @param listGid 任务列表的ID
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* @return 包含任务的JSONArray
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* @throws NetworkFailureException 如果网络请求失败
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|
|
|
|
* @throws ActionFailureException 如果操作失败(例如JSON处理失败)
|
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*/
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public JSONArray getTaskList(String listGid) throws NetworkFailureException {
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// 提交更新操作
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commitUpdate();
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|
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try {
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|
|
|
// 创建一个新的JSONObject,用于存储POST请求的数据
|
|
|
|
|
JSONObject jsPost = new JSONObject();
|
|
|
|
|
// 创建一个JSONArray,用于存储获取任务列表的操作
|
|
|
|
|
JSONArray actionList = new JSONArray();
|
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|
|
|
// 创建一个JSONObject,用于存储具体的获取操作
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JSONObject action = new JSONObject();
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// action_list
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// 设置获取操作的类型为"getall"
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action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
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GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL);
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// 设置获取操作的ID
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action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
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// 设置要获取的任务列表的ID
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action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid);
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// 设置是否获取已删除的任务,这里设置为false
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action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false);
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// 将获取操作添加到actionList中
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actionList.put(action);
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// 将actionList添加到jsPost中
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jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
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// client_version
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// 添加客户端版本信息到jsPost中
|
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jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
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// 发送POST请求,并将响应内容转换为JSONObject
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JSONObject jsResponse = postRequest(jsPost);
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// 从响应中获取任务列表的JSONArray并返回
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return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS);
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} catch (JSONException e) {
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// 捕获并记录JSON解析异常
|
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("get task list: handing jsonobject failed");
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}
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}
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/*
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* 获取当前同步的账户。
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* @return 当前同步的账户对象
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*/
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public Account getSyncAccount() {
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return mAccount;
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}
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/*
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* 重置更新操作数组。
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*/
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public void resetUpdateArray() {
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mUpdateArray = null;
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}
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}
|