hopsworks-master/hopsworks-common/src/main/java/io/hops/hopsworks/common/dao/certificates/CertsFacade.java
/*
 * Changes to this file committed after and not including commit-id: ccc0d2c5f9a5ac661e60e6eaf138de7889928b8b
 * are released under the following license:
 *
 * This file is part of Hopsworks
 * Copyright (C) 2018, Logical Clocks AB. All rights reserved
 *
 * Hopsworks is free software: you can redistribute it and/or modify it under the terms of
 * the GNU Affero General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * Hopsworks is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License along with this program.
 * If not, see <https://www.gnu.org/licenses/>.
 *
 * Changes to this file committed before and including commit-id: ccc0d2c5f9a5ac661e60e6eaf138de7889928b8b
 * are released under the following license:
 *
 * Copyright (C) 2013 - 2018, Logical Clocks AB and RISE SICS AB. All rights reserved
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the "Software"), to deal in the Software
 * without restriction, including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package io.hops.hopsworks.common.dao.certificates;

import io.hops.hopsworks.persistence.entity.certificates.UserCerts;

import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.EntityNotFoundException;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;

@Stateless
public class CertsFacade {

  private final Logger LOG = Logger.getLogger(CertsFacade.class.getName());
  
  @PersistenceContext(unitName = "kthfsPU")
  private EntityManager em;
  
  protected EntityManager getEntityManager() {
    return em;
  }

  public CertsFacade() throws Exception {
  }

  public UserCerts findUserCert(String projectName, String username) {
    TypedQuery<UserCerts> query = em.createNamedQuery(
        "UserCerts.findUserProjectCert", UserCerts.class);
    query.setParameter("projectname", projectName);
    query.setParameter("username", username);
    try {
      UserCerts res = query.getSingleResult();
      return res;
    } catch (NoResultException e) {
      Logger.getLogger(CertsFacade.class.getName()).log(Level.SEVERE, null,
          e);
    }
    return new UserCerts();
  }

  public List<UserCerts> findAllUserCerts() {
    TypedQuery<UserCerts> query = em.createNamedQuery(
        "UserCerts.findAll", UserCerts.class);
    try {
      List<UserCerts> res = query.getResultList();
      return res;
    } catch (EntityNotFoundException e) {
      Logger.getLogger(CertsFacade.class.getName()).log(Level.SEVERE, null,
          e);
    }
    return new ArrayList<>();
  }

  public List<UserCerts> findUserCertsByProjectId(String projectname) {
    TypedQuery<UserCerts> query = em.createNamedQuery(
        "UserCerts.findByProjectname", UserCerts.class);
    query.setParameter("projectname", projectname);
    try {
      List<UserCerts> res = query.getResultList();
      return res;
    } catch (EntityNotFoundException e) {
      Logger.getLogger(CertsFacade.class.getName()).log(Level.SEVERE, null,
          e);
    }
    return new ArrayList<>();
  }

  public List<UserCerts> findUserCertsByUid(String username) {
    TypedQuery<UserCerts> query = em.createNamedQuery(
        "UserCerts.findByUsername", UserCerts.class);
    query.setParameter("username", username);
    try {
      List<UserCerts> res = query.getResultList();
      return res;
    } catch (EntityNotFoundException e) {
      Logger.getLogger(CertsFacade.class.getName()).log(Level.SEVERE, null,
          e);
    }
    return new ArrayList<>();
  }

  public void persist(UserCerts uc) {
    em.persist(uc);
  }
  

  public UserCerts putUserCerts(String projectname, String username, byte[] kStoreBlob,
                                byte[] tStoreBlob, String userKeyPwd) {

    UserCerts uc = new UserCerts(projectname, username);
    uc.setUserKey(kStoreBlob);
    uc.setUserCert(tStoreBlob);
    uc.setUserKeyPwd(userKeyPwd);
    em.persist(uc);
    em.flush();

    return uc;
  }

  public void update(UserCerts uc) {
    em.merge(uc);
  }

  public <T> void remove(T uc) {
    if (uc != null) {
      em.remove(uc);
    }
  }

  public void removeUserProjectCerts(String projectname, String username) {
    UserCerts item = findUserCert(projectname, username);
    if (item != null) {
      UserCerts tmp = em.merge(item);
      remove(tmp);
    }
  }

  public void removeAllCertsOfAUser(String username) {
    List<UserCerts> items = findUserCertsByUid(username);
    if (items != null) {
      for (UserCerts uc : items) {
        UserCerts tmp = em.merge(uc);
        remove(tmp);
      }
    }
  }

  public void removeAllCertsOfAProject(String projectname) {
    List<UserCerts> items = findUserCertsByProjectId(projectname);
    removeCerts(items);
  }

  private <T> void removeCerts(List<T> items) {
    if (items != null) {
      for (T item : items) {
        T tmp = em.merge(item);
        remove(tmp);
      }
    }
  }
}
