001/* 002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl-2.1.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * 016 * Nelson Silva 017 */ 018 019package org.nuxeo.ecm.liveconnect.google.drive.credential; 020 021import com.google.api.client.auth.oauth2.Credential; 022import com.google.api.client.googleapis.auth.oauth2.GoogleCredential; 023import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport; 024import com.google.api.client.http.HttpTransport; 025import com.google.api.client.json.JsonFactory; 026import com.google.api.client.json.jackson2.JacksonFactory; 027import com.google.api.services.drive.DriveScopes; 028 029import java.io.File; 030import java.io.IOException; 031import java.security.GeneralSecurityException; 032import java.util.Collections; 033 034/** 035 * Credential factory for Service Accounts. 036 * 037 * @since 7.3 038 */ 039public class ServiceAccountCredentialFactory implements CredentialFactory { 040 041 private final String accountId; 042 043 private final File p12File; 044 045 public ServiceAccountCredentialFactory(String accountId, File p12File) { 046 this.accountId = accountId; 047 this.p12File = p12File; 048 } 049 050 @Override 051 public Credential build(String user) throws IOException { 052 try { 053 return new GoogleCredential.Builder() // 054 .setTransport(getHttpTransport()) // 055 .setJsonFactory(getJsonFactory()) // 056 .setServiceAccountId(accountId) // 057 .setServiceAccountPrivateKeyFromP12File(p12File) // 058 .setServiceAccountScopes(Collections.singleton(DriveScopes.DRIVE)) // 059 .setServiceAccountUser(user).build(); 060 } catch (GeneralSecurityException e) { 061 throw new IOException(e); 062 } 063 } 064 065 protected static JsonFactory getJsonFactory() { 066 return JacksonFactory.getDefaultInstance(); 067 } 068 069 protected static HttpTransport getHttpTransport() throws IOException { 070 try { 071 return GoogleNetHttpTransport.newTrustedTransport(); 072 } catch (GeneralSecurityException e) { 073 throw new IOException(e); 074 } 075 } 076}