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import com.flickr4java.flickr.Flickr;

import com.flickr4java.flickr.FlickrException;

import com.flickr4java.flickr.REST;

import com.flickr4java.flickr.RequestContext;

import com.flickr4java.flickr.auth.Auth;

import com.flickr4java.flickr.auth.AuthInterface;

import com.flickr4java.flickr.auth.Permission;

import com.flickr4java.flickr.photos.Photo;

import com.flickr4java.flickr.photos.PhotoList;

import com.flickr4java.flickr.photos.PhotosInterface;

import com.flickr4java.flickr.photos.Size;

import com.flickr4java.flickr.photosets.Photoset;

import com.flickr4java.flickr.photosets.PhotosetsInterface;

import com.flickr4java.flickr.util.AuthStore;

import com.flickr4java.flickr.util.FileAuthStore;

import org.scribe.model.Token;

import org.scribe.model.Verifier;

import org.xml.sax.SAXException;

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.net.URL;

import java.util.ArrayList;

import java.util.Collection;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Map;

import java.util.Scanner;

/**

* A simple program to backup all of a users private and public photos in a photoset aware manner. If photos are classified in multiple photosets, they will be

* copied. Its a sample, its not perfect :-)

*

* This sample also uses the AuthStore interface, so users will only be asked to authorize on the first run.

*

* @author Matthew MacKenzie

* @version $Id: Backup.java,v 1.6 2009/01/01 16:44:57 x-mago Exp $

*/

public class Backup {

private final String nsid;

private final Flickr flickr;

private AuthStore authStore;

public Backup(String apiKey, String nsid, String sharedSecret, File authsDir) throws FlickrException {

flickr = new Flickr(apiKey, sharedSecret, new REST());

this.nsid = nsid;

if (authsDir != null) {

this.authStore = new FileAuthStore(authsDir);

}

}

private void authorize() throws IOException, SAXException, FlickrException {

AuthInterface authInterface = flickr.getAuthInterface();

Token accessToken = authInterface.getRequestToken();

String url = authInterface.getAuthorizationUrl(accessToken, Permission.READ);

System.out.println("Follow this URL to authorise yourself on Flickr");

System.out.println(url);

System.out.println("Paste in the token it gives you:");

System.out.print(">>");

String tokenKey = new Scanner(System.in).nextLine();

Token requestToken = authInterface.getAccessToken(accessToken, new Verifier(tokenKey));

Auth auth = authInterface.checkToken(requestToken);

RequestContext.getRequestContext().setAuth(auth);

this.authStore.store(auth);

System.out.println("Thanks. You probably will not have to do this every time. Now starting backup.");

}

public void doBackup(File directory) throws Exception {

if (!directory.exists()) {

directory.mkdir();

}

RequestContext rc = RequestContext.getRequestContext();

if (this.authStore != null) {

Auth auth = this.authStore.retrieve(this.nsid);

if (auth == null) {

this.authorize();

} else {

rc.setAuth(auth);

}

}

PhotosetsInterface pi = flickr.getPhotosetsInterface();

PhotosInterface photoInt = flickr.getPhotosInterface();

Map<String, Collection> allPhotos = new HashMap<String, Collection>();

Iterator sets = pi.getList(this.nsid).getPhotosets().iterator();

while (sets.hasNext()) {

Photoset set = (Photoset) sets.next();

PhotoList photos = pi.getPhotos(set.getId(), 500, 1);

allPhotos.put(set.getTitle(), photos);

}

int notInSetPage = 1;

Collection notInASet = new ArrayList();

while (true) {

Collection nis = photoInt.getNotInSet(50, notInSetPage);

notInASet.addAll(nis);

if (nis.size() < 50) {

break;

}

notInSetPage++;

}

allPhotos.put("NotInASet", notInASet);

Iterator allIter = allPhotos.keySet().iterator();

while (allIter.hasNext()) {

String setTitle = (String) allIter.next();

String setDirectoryName = makeSafeFilename(setTitle);

Collection currentSet = allPhotos.get(setTitle);

Iterator setIterator = currentSet.iterator();

File setDirectory = new File(directory, setDirectoryName);

setDirectory.mkdir();

while (setIterator.hasNext()) {

Photo p = (Photo) setIterator.next();

String url = p.getLargeUrl();

URL u = new URL(url);

String filename = u.getFile();

filename = filename.substring(filename.lastIndexOf("/") + 1, filename.length());

System.out.println("Now writing " + filename + " to " + setDirectory.getCanonicalPath());

BufferedInputStream inStream = new BufferedInputStream(photoInt.getImageAsStream(p, Size.LARGE));

File newFile = new File(setDirectory, filename);

FileOutputStream fos = new FileOutputStream(newFile);

int read;

while ((read = inStream.read()) != -1) {

fos.write(read);

}

fos.flush();

fos.close();

inStream.close();

}

}

}

private String makeSafeFilename(String input) {

byte[] fname = input.getBytes();

byte[] bad = new byte[] { '\\', '/', '"' };

byte replace = '_';

for (int i = 0; i < fname.length; i++) {

for (byte element : bad) {

if (fname[i] == element) {

fname[i] = replace;

}

}

}

return new String(fname);

}

public static void main(String[] args) throws Exception {

if (args.length < 4) {

System.out.println("Usage: java " + Backup.class.getName() + " api_key nsid shared_secret output_dir");

System.exit(1);

}

Backup bf = new Backup(args[0], args[1], args[2], new File(System.getProperty("user.home") + File.separatorChar + ".flickrAuth"));

bf.doBackup(new File(args[3]));

}

}