jp.co.yahoo.yconnect.core.oauth2.RefreshTokenClient.java Source code

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Here is the source code for jp.co.yahoo.yconnect.core.oauth2.RefreshTokenClient.java

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/**
 * The MIT License (MIT)
 *
 * Copyright (C) 2016 Yahoo Japan Corporation. All Rights Reserved.
 *
 * 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.
 */

package jp.co.yahoo.yconnect.core.oauth2;

import java.io.StringReader;

import javax.json.Json;
import javax.json.JsonObject;
import javax.json.JsonReader;

import jp.co.yahoo.yconnect.core.http.HttpHeaders;
import jp.co.yahoo.yconnect.core.http.HttpParameters;
import jp.co.yahoo.yconnect.core.http.YHttpClient;
import jp.co.yahoo.yconnect.core.util.YConnectLogger;

import org.apache.commons.codec.binary.Base64;

/**
 * Refresh Token Client Class
 *
 * @author Copyright (C) 2016 Yahoo Japan Corporation. All Rights Reserved.
 *
 */
public class RefreshTokenClient extends AbstractTokenClient {

    private final static String TAG = RefreshTokenClient.class.getSimpleName();

    private YHttpClient client;

    private String refreshToken;

    private BearerToken accessToken;

    public RefreshTokenClient(String endpointUrl, String refreshToken, String clientId, String clientSecret) {
        super(endpointUrl, clientId, clientSecret);
        this.refreshToken = refreshToken;
    }

    public void fetch() throws TokenException, Exception {

        HttpParameters parameters = new HttpParameters();
        parameters.put("grant_type", OAuth2GrantType.REFRESH_TOKEN);
        parameters.put("refresh_token", refreshToken);

        String credential = clientId + ":" + clientSecret;
        String basic = new String(Base64.encodeBase64(credential.getBytes()));

        HttpHeaders requestHeaders = new HttpHeaders();
        requestHeaders.put("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
        requestHeaders.put("Authorization", "Basic " + basic);

        client = new YHttpClient();
        client.requestPost(endpointUrl, parameters, requestHeaders);

        YConnectLogger.debug(TAG, client.getResponseHeaders().toString());
        YConnectLogger.debug(TAG, client.getResponseBody().toString());

        String json = client.getResponseBody();
        JsonReader jsonReader = Json.createReader(new StringReader(json));
        JsonObject jsonObject = jsonReader.readObject();
        jsonReader.close();

        int statusCode = client.getStatusCode();

        checkErrorResponse(statusCode, jsonObject);

        String accessTokenString = (String) jsonObject.getString("access_token");
        long expiresIn = Long.parseLong((String) jsonObject.getString("expires_in"));
        accessToken = new BearerToken(accessTokenString, expiresIn, refreshToken);

    }

    public BearerToken getAccessToken() {
        return accessToken;
    }

}