org.springframework.social.yahoo.connect.YahooOAuth2Template.java Source code

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Here is the source code for org.springframework.social.yahoo.connect.YahooOAuth2Template.java

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/*
 * Copyright 2015 the original author or authors.
 *
 * 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 org.springframework.social.yahoo.connect;

import java.nio.charset.Charset;
import java.util.Map;

import org.apache.commons.codec.binary.Base64;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.social.oauth2.AccessGrant;
import org.springframework.social.oauth2.OAuth2Template;
import org.springframework.util.MultiValueMap;

/**
 * @author Pedro Abalo
 */
public class YahooOAuth2Template extends OAuth2Template {

    public YahooOAuth2Template(String clientId, String clientSecret) {

        super(clientId, clientSecret, "https://api.login.yahoo.com/oauth2/request_auth",
                "https://api.login.yahoo.com/oauth2/get_token");

        setUseParametersForClientAuthentication(true);
    }

    @Override
    @SuppressWarnings({ "unchecked", "rawtypes" })
    protected AccessGrant postForAccessGrant(String accessTokenUrl, MultiValueMap<String, String> parameters) {
        HttpHeaders headers = new HttpHeaders();
        String auth = parameters.getFirst("client_id") + ":" + parameters.getFirst("client_secret");
        byte[] encodedAuth = Base64.encodeBase64(auth.getBytes(Charset.forName("US-ASCII")));
        String authHeader = "Basic " + new String(encodedAuth);
        headers.set("Authorization", authHeader);
        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
        HttpEntity<MultiValueMap<String, String>> requestEntity = new HttpEntity<MultiValueMap<String, String>>(
                parameters, headers);
        ResponseEntity<Map> responseEntity = getRestTemplate().exchange(accessTokenUrl, HttpMethod.POST,
                requestEntity, Map.class);
        Map<String, Object> responseMap = responseEntity.getBody();
        return extractAccessGrant(responseMap);
    }

    @SuppressWarnings("unused")
    private AccessGrant extractAccessGrant(Map<String, Object> result) {
        String accessToken = (String) result.get("access_token");
        String scope = (String) result.get("scope");
        String tokenType = (String) result.get("token_type");
        // result.get("expires_in") may be an Integer, so cast it to Number first.    
        Number expiresInNumber = (Number) result.get("expires_in");
        Long expiresIn = (expiresInNumber == null) ? null : expiresInNumber.longValue();
        String refreshToken = (String) result.get("refresh_token");
        String xoauthYahooGuid = (String) result.get("xoauth_yahoo_guid");

        return createAccessGrant(accessToken, scope, refreshToken, expiresIn, result);
    }
}