Java tutorial
/* * Copyright (C) 2009 Google Inc. * * 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 com.google.sites.liberation.export; import java.io.File; import java.io.IOException; import java.io.InputStreamReader; import java.security.GeneralSecurityException; import java.util.Arrays; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import org.kohsuke.args4j.CmdLineException; import org.kohsuke.args4j.CmdLineParser; import org.kohsuke.args4j.Option; import com.google.api.client.auth.oauth2.Credential; import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp; import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver; import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow; import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets; import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport; import com.google.api.client.http.HttpTransport; import com.google.api.client.json.JsonFactory; import com.google.api.client.json.jackson2.JacksonFactory; import com.google.api.client.util.store.DataStoreFactory; import com.google.api.client.util.store.FileDataStoreFactory; import com.google.api.services.oauth2.Oauth2; import com.google.gdata.client.sites.SitesService; import com.google.inject.Guice; import com.google.inject.Injector; import com.google.sites.liberation.util.StdOutProgressListener; /** * Processes command line arguments for exporting a site and then * calls SiteExporter accordingly. * * @author bsimon@google.com (Benjamin Simon) */ public class Main { private static final Logger LOGGER = Logger.getLogger(Main.class.getCanonicalName()); @Option(name = "-d", usage = "domain of site") private String domain = null; @Option(name = "-w", usage = "webspace of site") private String webspace = null; @Option(name = "-r", usage = "export revisions as well as current content") private boolean exportRevisions = false; @Option(name = "-f", usage = "directory in which to export") private File directory = new File(""); @Option(name = "-h", usage = "host") private String host = "sites.google.com"; /** * Be sure to specify the name of your application. If the application name is {@code null} or * blank, the application will log a warning. Suggested format is "MyCompany-ProductName/1.0". */ private static final String APPLICATION_NAME = "sElaiassi-GoogleSiteLiberation/1.0"; /** Directory to store user credentials. */ private static final java.io.File DATA_STORE_DIR = new java.io.File(System.getProperty("user.home"), ".store/GoogleSiteLiberation"); /** * Global instance of the {@link DataStoreFactory}. The best practice is to make it a single * globally shared instance across your application. */ private static FileDataStoreFactory dataStoreFactory; /** Global instance of the HTTP transport. */ private static HttpTransport httpTransport; private static Oauth2 oauth2; /** Global instance of the JSON factory. */ private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance(); private static GoogleClientSecrets clientSecrets; /** Scope Authorization. */ private static List<String> SCOPES = Arrays.asList("https://sites.google.com/feeds"); /** Authorizes the installed application to access user's protected data. * @throws Exception */ private static Credential authorize() throws Exception { // load client secrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(Main.class.getResourceAsStream("/client_secrets.json"))); if (clientSecrets.getDetails().getClientId().startsWith("Enter") || clientSecrets.getDetails().getClientSecret().startsWith("Enter")) { System.out.println("Enter Client ID and Secret from https://code.google.com/apis/console/ " + "into google-sites-liberation/src/main/resources/client_secrets.json"); System.exit(1); } // set up authorization code flow GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(httpTransport, JSON_FACTORY, clientSecrets, SCOPES).setDataStoreFactory(dataStoreFactory).setAccessType("offline").build(); //Loading receiver on 8080 port (you can change this if already in use) LocalServerReceiver localServerReceiver = new LocalServerReceiver.Builder().setPort(8080).build(); // authorize return new AuthorizationCodeInstalledApp(flow, localServerReceiver).authorize("user"); } private void doMain(String[] args) { CmdLineParser parser = new CmdLineParser(this); Injector injector = Guice.createInjector(new SiteExporterModule()); SiteExporter siteExporter = injector.getInstance(SiteExporter.class); try { parser.parseArgument(args); if (webspace == null) { throw new CmdLineException("Webspace of site not specified!"); } SitesService sitesService = new SitesService("google-sites-liberation"); httpTransport = GoogleNetHttpTransport.newTrustedTransport(); dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR); Credential credential = authorize(); oauth2 = new Oauth2.Builder(httpTransport, JSON_FACTORY, credential) .setApplicationName(APPLICATION_NAME).build(); sitesService.setOAuth2Credentials(credential); siteExporter.exportSite(host, domain, webspace, exportRevisions, sitesService, directory, new StdOutProgressListener()); } catch (CmdLineException e) { LOGGER.log(Level.SEVERE, e.getMessage()); parser.printUsage(System.err); return; } catch (GeneralSecurityException e) { LOGGER.log(Level.SEVERE, "Error while setting up the security"); } catch (IOException e) { LOGGER.log(Level.SEVERE, "Error handling resources files"); } catch (Exception e) { LOGGER.log(Level.SEVERE, "Error while getting the AccesToken"); } } /** * Exports a Site. */ public static void main(String[] args) { new Main().doMain(args); } }