Android Open Source - prim-ftpd Android Prefs User Manager

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Back to project page prim-ftpd.
License

The source code is released under:
Apache License
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Java Source Code

package org.primftpd;
// w ww  . j  a  v a2 s. com
import java.util.ArrayList;
import java.util.List;

import org.apache.ftpserver.ftplet.Authentication;
import org.apache.ftpserver.ftplet.AuthenticationFailedException;
import org.apache.ftpserver.ftplet.Authority;
import org.apache.ftpserver.ftplet.FtpException;
import org.apache.ftpserver.ftplet.User;
import org.apache.ftpserver.ftplet.UserManager;
import org.apache.ftpserver.usermanager.UsernamePasswordAuthentication;
import org.apache.ftpserver.usermanager.impl.BaseUser;
import org.apache.ftpserver.usermanager.impl.ConcurrentLoginPermission;
import org.apache.ftpserver.usermanager.impl.TransferRatePermission;
import org.apache.ftpserver.usermanager.impl.WritePermission;
import org.primftpd.util.EncryptionUtil;
import org.primftpd.util.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import android.os.Environment;

public class AndroidPrefsUserManager implements UserManager {

  protected final Logger logger = LoggerFactory.getLogger(getClass());

  private final PrefsBean prefsBean;

  public AndroidPrefsUserManager(PrefsBean prefsBean) {
    this.prefsBean = prefsBean;
  }

  protected List<Authority> buildAuthorities() {
    List<Authority> authorities = new ArrayList<Authority>();

    WritePermission writePerm = new WritePermission();
    authorities.add(writePerm);

    //TransferRatePermission ratePerm = new TransferRatePermission(100, 100);
    TransferRatePermission ratePerm = new TransferRatePermission(0, 0);
    authorities.add(ratePerm);

    ConcurrentLoginPermission concurLoginPerm = new ConcurrentLoginPermission(10, 10);
    authorities.add(concurLoginPerm);

    return authorities;
  }

  protected User buildUser() {
    BaseUser user = new BaseUser();
    user.setEnabled(true);

    String rootDir = Environment.getExternalStorageDirectory().getAbsolutePath();
    logger.debug("rootDir: {}", rootDir);
    user.setHomeDirectory(rootDir);

    user.setMaxIdleTime(60);
    user.setName(prefsBean.getUserName());
    user.setPassword(prefsBean.getPassword());
    user.setAuthorities(buildAuthorities());
    return user;
  }

  @Override
  public User getUserByName(String username) throws FtpException {
    if (doesExist(username)) {
      return buildUser();
    }
    return null;
  }

  @Override
  public String[] getAllUserNames() throws FtpException {
    return new String[]{prefsBean.getUserName()};
  }

  @Override
  public void delete(String username) throws FtpException {
  }

  @Override
  public void save(User user) throws FtpException {
  }

  @Override
  public boolean doesExist(String username) {
    return prefsBean.getUserName().equals(username);
  }

  @Override
  public User authenticate(Authentication authentication)
      throws AuthenticationFailedException
  {
    if (authentication instanceof UsernamePasswordAuthentication) {
      UsernamePasswordAuthentication auth = (UsernamePasswordAuthentication) authentication;

      if (doesExist(auth.getUsername())) {
        String pw = auth.getPassword();
        if (!StringUtils.isBlank(pw)) {
          String encryptedPW = EncryptionUtil.encrypt(pw);
          String storedPW = prefsBean.getPassword();
          if (storedPW.equals(encryptedPW)) {
            return buildUser();
          }
        }
      }
    }
    throw new AuthenticationFailedException();
  }

  @Override
  public String getAdminName() throws FtpException {
    return prefsBean.getUserName();
  }

  @Override
  public boolean isAdmin(String username) throws FtpException {
    return doesExist(username);
  }

}
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