ca.bitcoco.jsk.google.GoogleClient Maven / Gradle / Ivy

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Common service for bitcoco usage
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package ca.bitcoco.jsk.google;

import com.google.api.client.googleapis.auth.oauth2.GoogleIdToken;
import com.google.api.client.googleapis.auth.oauth2.GoogleIdTokenVerifier;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

public class GoogleClient {

    // Set up the HTTP transport and JSON factory
    private String GOOGLE_CLIENT_ID;

    public GoogleClient(String GOOGLE_CLIENT_ID) {
           this.GOOGLE_CLIENT_ID = GOOGLE_CLIENT_ID;
    }

    private static final JacksonFactory jacksonFactory = new JacksonFactory();


    public Map authToken(String idTokenString) throws Exception {
        try {
            Map response = new HashMap();
            GoogleIdTokenVerifier GoogleIdTokenVerifier = new GoogleIdTokenVerifier.Builder(new NetHttpTransport(), jacksonFactory)
                    .setAudience(Collections.singletonList(GOOGLE_CLIENT_ID))
                    // .setIssuer("https://accounts.google.com")
                    .build();

            GoogleIdToken idToken = GoogleIdTokenVerifier.verify(idTokenString);
            if (idToken != null) {
                GoogleIdToken.Payload payload = idToken.getPayload();
                // Print user identifier
                String authId = payload.getSubject();
                // Get profile information from payload
                boolean emailVerified = Boolean.valueOf(payload.getEmailVerified());
                String email = payload.getEmail();
                String name = (String) payload.get("name");
                String pictureUrl = (String) payload.get("picture");
                String locale = (String) payload.get("locale");
                String familyName = (String) payload.get("family_name");
                String givenName = (String) payload.get("given_name");
                response.put("openId", authId);
                response.put("email", email);
                response.put("name", name);
                response.put("pictureUrl", pictureUrl);
                response.put("locale", locale);
                response.put("lastName", familyName);
                response.put("firstName", givenName);
                return response;
            } else {
                return null;
            }
        } catch (Exception e) {
            throw new Exception("Google auth failed, " + e.getLocalizedMessage());
        }
    }
}