001/* 002 * (C) Copyright 2015-2016 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nelson Silva 018 */ 019package org.nuxeo.ecm.liveconnect.google.drive; 020 021import java.io.IOException; 022 023import org.nuxeo.ecm.liveconnect.core.AbstractLiveConnectOAuth2ServiceProvider; 024 025import com.google.api.client.http.GenericUrl; 026import com.google.api.client.http.HttpRequestFactory; 027import com.google.api.client.http.HttpResponse; 028import com.google.api.client.json.GenericJson; 029import com.google.api.client.json.JsonObjectParser; 030 031/** 032 * @since 7.3 033 */ 034public class GoogleOAuth2ServiceProvider extends AbstractLiveConnectOAuth2ServiceProvider { 035 036 private static final String TOKEN_INFO_URL = "https://www.googleapis.com/oauth2/v1/tokeninfo"; 037 038 private static final HttpRequestFactory requestFactory = 039 HTTP_TRANSPORT.createRequestFactory(request -> request.setParser(new JsonObjectParser(JSON_FACTORY))); 040 041 @Override 042 protected String getUserEmail(String accessToken) throws IOException { 043 GenericUrl url = new GenericUrl(TOKEN_INFO_URL); 044 url.set("access_token", accessToken); 045 046 HttpResponse response = requestFactory.buildGetRequest(url).execute(); 047 GenericJson json = response.parseAs(GenericJson.class); 048 return (String) json.get("email"); 049 } 050 051}