com.wms.ezyoukuuploader.sdk.task.FetchYoukuAccessTokenTask.java Source code

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Here is the source code for com.wms.ezyoukuuploader.sdk.task.FetchYoukuAccessTokenTask.java

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/*
 * Copyright 2016 Waterloo Mobile Studio
 *
 * 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.wms.ezyoukuuploader.sdk.task;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Handler;

import com.wms.ezyoukuuploader.sdk.R;
import com.wms.ezyoukuuploader.sdk.handler.HandlerMessage;
import com.wms.ezyoukuuploader.sdk.util.DialogUtil;
import com.wms.ezyoukuuploader.sdk.util.MessageUtil;
import com.wms.ezyoukuuploader.sdk.util.SharedPreferenceUtil;
import com.wms.ezyoukuuploader.sdk.youku.YoukuConstants;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.List;

/**
 * Fetch Youku OAuth2 access token.
 */
public class FetchYoukuAccessTokenTask extends AsyncTask<String, Void, String> {

    private Context context = null;
    private Handler handler = null;

    private ProgressDialog progressDialog = null;

    public FetchYoukuAccessTokenTask(Context context, Handler handler) {
        this.context = context;
        this.handler = handler;
    }

    protected void onPreExecute() {
        progressDialog = DialogUtil.showWaitingProgressDialog(context, ProgressDialog.STYLE_SPINNER,
                context.getString(R.string.authorizingUser), false);
    }

    @SuppressWarnings("deprecation")
    @Override
    protected String doInBackground(String... params) {
        // params[0] is refresh token
        String refreshToken = params[0];

        String accessToken = null;

        HttpPost httpPost = new HttpPost(YoukuConstants.YOUKU_OAUTH2_URL);
        List<NameValuePair> parameters = new ArrayList<NameValuePair>();
        parameters.add(new BasicNameValuePair(YoukuConstants.PARAM_CLIENT_ID,
                context.getString(R.string.YOUKU_APP_CLIENT_ID)));
        parameters.add(new BasicNameValuePair(YoukuConstants.PARAM_CLIENT_SECRET,
                context.getString(R.string.YOUKU_APP_CLIENT_SECRET)));
        parameters.add(
                new BasicNameValuePair(YoukuConstants.PARAM_GRANT_TYPE, YoukuConstants.GRANT_TYPE_REFRESH_TOKEN));
        parameters.add(new BasicNameValuePair(YoukuConstants.PARAM_REFRESH_TOKEN, refreshToken));
        try {
            httpPost.setEntity(new UrlEncodedFormEntity(parameters, HTTP.UTF_8));
            HttpResponse httpResponse = new DefaultHttpClient().execute(httpPost);
            if (httpResponse.getStatusLine().getStatusCode() == 200) {
                String result = EntityUtils.toString(httpResponse.getEntity());
                JSONObject object = new JSONObject(result);
                accessToken = object.getString(YoukuConstants.PARAM_ACCESS_TOKEN);
                String newRefreshToken = object.getString(YoukuConstants.PARAM_REFRESH_TOKEN);
                SharedPreferenceUtil.savePreferenceItemByName(context, SharedPreferenceUtil.YoukuRefreshToken,
                        newRefreshToken);
                SharedPreferenceUtil.savePreferenceItemByName(context, SharedPreferenceUtil.YoukuAccessToken,
                        accessToken);
            }
        } catch (Exception e) {
            // accessToken will remain null
        }
        ;
        return accessToken;
    }

    protected void onPostExecute(String result) {
        progressDialog.dismiss();
        if (result == null) {
            MessageUtil.sendHandlerMessage(handler, HandlerMessage.YOUKU_ACCESS_TOKEN_REFRESH_FAILED);
        } else {
            MessageUtil.sendHandlerMessage(handler, HandlerMessage.YOUKU_ACCESS_TOKEN_REFRESH_SUCCESS);
        }
    }
}