tokyo.ryogo.dropkick.sns.twitter.DKTwitter.java Source code

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Here is the source code for tokyo.ryogo.dropkick.sns.twitter.DKTwitter.java

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/*
* Copyright (C) 2016 Ryogo Amamiya ( http://ryogo.tokyo/ )
*
* 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 tokyo.ryogo.dropkick.sns.twitter;

/* Twitter4J?????????????
 *
 * ?:
 * http://android.roof-balcony.com/shori/strage/preference/
 */

import tokyo.ryogo.dropkick.R;

import tokyo.ryogo.dropkick.util.Utility;
import twitter4j.Twitter;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;

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

public class DKTwitter {

    private static final String TOKEN = "token";
    private static final String TOKEN_SECRET = "token_secret";
    private static final String PREF_NAME = "twitter_access_token";

    // Twitter??????????????
    public static Twitter getTwitterInstance(Context context) {
        String consumerKey = TwitterSecret.getTwitterConsumerKey(context.getString(R.string.cryption));
        String consumerSecret = TwitterSecret.getTwitterConsumerKeySecret(context.getString(R.string.cryption));

        TwitterFactory factory = new TwitterFactory();
        Twitter twitter = factory.getInstance();
        twitter.setOAuthConsumer(consumerKey, consumerSecret);

        if (hasAccessToken(context)) {
            twitter.setOAuthAccessToken(loadAccessToken(context));
        }
        return twitter;
    }

    // ?????
    public static void storeAccessToken(Context context, AccessToken accessToken) {
        String TokenSecretEncrypted = null;

        SharedPreferences preferences = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
        Editor editor = preferences.edit();
        editor.putString(TOKEN, accessToken.getToken());

        if (!Utility.isNullOrEmpty(accessToken.getTokenSecret())) {
            try {
                TokenSecretEncrypted = Utility.encrypt(context.getString(R.string.cryption),
                        accessToken.getTokenSecret());
                editor.putString(TOKEN_SECRET, TokenSecretEncrypted);
            } catch (Exception e) {
                editor.putString(TOKEN_SECRET, "");
            }
        }

        editor.apply(); // commit?????
    }

    // ?????
    public static AccessToken loadAccessToken(Context context) {
        String tokenSecret = null;

        SharedPreferences preferences = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
        String token = preferences.getString(TOKEN, null);
        String tokenSecretEncrypted = preferences.getString(TOKEN_SECRET, null);

        if (!Utility.isNullOrEmpty(tokenSecretEncrypted)) {
            try {
                tokenSecret = Utility.decrypt(context.getString(R.string.cryption), tokenSecretEncrypted);
            } catch (Exception e) {
                tokenSecret = null;
            }
        }

        if (token != null && tokenSecret != null) {
            return new AccessToken(token, tokenSecret);
        } else {
            return null;
        }
    }

    // ?
    public static void ClearAccessToken(Context context) {
        SharedPreferences preferences = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
        Editor editor = preferences.edit();
        editor.remove(TOKEN);
        editor.remove(TOKEN_SECRET);
        editor.apply(); // commit?????
    }

    // ????true?
    public static boolean hasAccessToken(Context context) {
        return loadAccessToken(context) != null;
    }

}