やりたいこと
- JAX-RSでyouRoom APIにOAtuthでアクセスする
前提条件
- RIにはJersey 2.xを使用
- OAuth1を使用
- youRoom APIはこちら
- Cosumer Key/Consumer Secretは取得済み
実装してみる
- お試しでUser/verify_credentialsを呼び出してみる
依存関係の解決
- 下記のように依存性を定義する(Gradleの場合)
build.gradle
compile group: 'org.glassfish.jersey.core', name: 'jersey-client', version: '2.+'
// これがOAuth1用
compile group: 'org.glassfish.jersey.security', name: 'oauth1-client', version: '2.+'
PINコード取得しての認証
Demo.java
public class Demo {
private static final String CONSUMER_KEY = "*****";
private static final String CONSUMER_SECRET = "*****";
private static final BufferedReader IN = new BufferedReader(new InputStreamReader(System.in));
public static void main(String[] args) {
ConsumerCredentials consumerCredentials = new ConsumerCredentials(CONSUMER_KEY, CONSUMER_SECRET);
OAuth1AuthorizationFlow authFlow = OAuth1ClientSupport.builder(consumerCredentials)
.authorizationFlow(
"https://www.youroom.in/oauth/request_token",
"https://www.youroom.in/oauth/access_token",
"https://www.youroom.in/oauth/authorize")
.build();
String authorizationUri = authFlow.start();
System.out.println("Enter the following URI into a web browser and authorize me:");
System.out.println(authorizationUri);
System.out.print("Enter the authorization code: ");
String verifier = null;
try {
verifier = IN.readLine();
} catch (IOException ex) {
throw new RuntimeException(ex);
}
AccessToken accessTokne = authFlow.finish(verifier);
Feature filterFeature = authFlow.getOAuth1Feature();
Client client = ClientBuilder.newBuilder()
.register(filterFeature)
.build();
String response = client.target("https://www.youroom.in/verify_credentials").request(MediaType.APPLICATION_JSON).get(String.class);
System.out.println(response);
}
}
-
System.out.println(authorizationUri);で表示されたURLにブラウザ等でアクセスし、認証してPINを取得します。 - 取得したPINを標準入力に入力します。
Access TokenおよびAccess Token Secreetが取得済みの場合
Demo.java
public class Demo {
private static final String CONSUMER_KEY = "*****";
private static final String CONSUMER_SECRET = "*****";
private static final String ACCESS_TOKEN = "*****";
private static final String ACCESS_TOKEN_SECRET = "*****";
public static void main(String[] args) {
ConsumerCredentials consumerCredentials = new ConsumerCredentials(CONSUMER_KEY, CONSUMER_SECRET);
AccessToken accessToken = new AccessToken(ACCESS_TOKEN, ACCESS_TOKEN_SECRET);
Feature feature = OAuth1ClientSupport.builder(consumerCredentials).feature().accessToken(accessToken).build();
Client client = ClientBuilder.newBuilder()
.register(feature)
.build();
String response = client.target("https://www.youroom.in/verify_credentials").request(MediaType.APPLICATION_JSON).get(String.class);
System.out.println(response);
}
}
参考
https://github.com/jersey/jersey/tree/2.11/examples/oauth-client-twitter
（このexampleそのまま試した感じです）