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   1 /**
   2  *  This document is a part of the source code and related artifacts
   3  *  for CollectionSpace, an open source collections management system
   4  *  for museums and related institutions:
   5
   6  *  http://www.collectionspace.org
   7  *  http://wiki.collectionspace.org
   8
   9  *  Copyright 2009 University of California at Berkeley
  10
  11  *  Licensed under the Educational Community License (ECL), Version 2.0.
  12  *  You may not use this file except in compliance with this License.
  13
  14  *  You may obtain a copy of the ECL 2.0 License at
  15
  16  *  https://source.collectionspace.org/collection-space/LICENSE.txt
  17
  18  *  Unless required by applicable law or agreed to in writing, software
  19  *  distributed under the License is distributed on an "AS IS" BASIS,
  20  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  21  *  See the License for the specific language governing permissions and
  22  *  limitations under the License.
  23  */
  24 package org.collectionspace.services.account.storage;
  25
  26 import java.util.Date;
  27 import javax.persistence.EntityManager;
  28 import javax.persistence.EntityManagerFactory;
  29 import javax.persistence.Query;
  30 import org.collectionspace.services.account.AccountsCommon;
  31 import org.collectionspace.services.authentication.User;
  32 import org.collectionspace.services.common.context.ServiceContext;
  33 import org.collectionspace.services.common.document.BadRequestException;
  34 import org.collectionspace.services.common.document.DocumentException;
  35 import org.collectionspace.services.common.document.DocumentHandler;
  36 import org.collectionspace.services.common.document.DocumentHandler.Action;
  37 import org.collectionspace.services.common.document.DocumentNotFoundException;
  38 import org.collectionspace.services.common.document.DocumentWrapper;
  39 import org.collectionspace.services.common.document.DocumentWrapperImpl;
  40 import org.collectionspace.services.common.security.SecurityUtils;
  41 import org.collectionspace.services.common.storage.jpa.JpaStorageClientImpl;
  42 import org.collectionspace.services.common.storage.jpa.JpaStorageUtils;
  43
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 /**
  48  * AccountStorageClient deals with both Account and Default Identity Provider's
  49  * state in persistent storage
  50  * @author
  51  */
  52 public class AccountStorageClient extends JpaStorageClientImpl {
  53
  54     private final Logger logger = LoggerFactory.getLogger(AccountStorageClient.class);
  55
  56     public AccountStorageClient() {
  57     }
  58
  59     @Override
  60     public String create(ServiceContext ctx,
  61             DocumentHandler handler) throws BadRequestException,
  62             DocumentException {
  63
  64         if (ctx == null) {
  65             throw new IllegalArgumentException(
  66                     "AccountStorageClient.create : ctx is missing");
  67         }
  68         if (handler == null) {
  69             throw new IllegalArgumentException(
  70                     "AccountStorageClient.create: handler is missing");
  71         }
  72         EntityManagerFactory emf = null;
  73         EntityManager em = null;
  74         try {
  75             handler.prepare(Action.CREATE);
  76             AccountsCommon account = (AccountsCommon) handler.getCommonPart();
  77             DocumentWrapper<AccountsCommon> wrapDoc =
  78                     new DocumentWrapperImpl<AccountsCommon>(account);
  79             handler.handle(Action.CREATE, wrapDoc);
  80             emf = JpaStorageUtils.getEntityManagerFactory();
  81             em = emf.createEntityManager();
  82             em.getTransaction().begin();
  83             //if userid and password are given, add to default id provider
  84             if (account.getUserId() != null && account.getPassword() != null) {
  85                 User user = createUser(account);
  86                 em.persist(user);
  87             }
  88 //            if (account.getTenant() != null) {
  89 //                UserTenant ut = createTenantAssoc(account);
  90 //                em.persist(ut);
  91 //            }
  92             account.setCreatedAtItem(new Date());
  93             em.persist(account);
  94             em.getTransaction().commit();
  95             handler.complete(Action.CREATE, wrapDoc);
  96             return (String) getValue(account, "getCsid");
  97         } catch (BadRequestException bre) {
  98             if (em != null && em.getTransaction().isActive()) {
  99                 em.getTransaction().rollback();
 100             }
 101             throw bre;
 102         } catch (Exception e) {
 103             if (em != null && em.getTransaction().isActive()) {
 104                 em.getTransaction().rollback();
 105             }
 106             if (logger.isDebugEnabled()) {
 107                 logger.debug("Caught exception ", e);
 108             }
 109             throw new DocumentException(e);
 110         } finally {
 111             if (em != null) {
 112                 JpaStorageUtils.releaseEntityManagerFactory(emf);
 113             }
 114         }
 115     }
 116
 117     @Override
 118     public void update(ServiceContext ctx, String id, DocumentHandler handler)
 119             throws BadRequestException, DocumentNotFoundException,
 120             DocumentException {
 121         if (ctx == null) {
 122             throw new IllegalArgumentException(
 123                     "AccountStorageClient.update : ctx is missing");
 124         }
 125         if (handler == null) {
 126             throw new IllegalArgumentException(
 127                     "AccountStorageClient.update: handler is missing");
 128         }
 129         EntityManagerFactory emf = null;
 130         EntityManager em = null;
 131         try {
 132             handler.prepare(Action.UPDATE);
 133             AccountsCommon account = (AccountsCommon) handler.getCommonPart();
 134             DocumentWrapper<AccountsCommon> wrapDoc =
 135                     new DocumentWrapperImpl<AccountsCommon>(account);
 136             setCsid(account, id); //set id just in case it was not populated by consumer
 137             handler.handle(Action.UPDATE, wrapDoc);
 138             emf = JpaStorageUtils.getEntityManagerFactory();
 139             em = emf.createEntityManager();
 140             em.getTransaction().begin();
 141             AccountsCommon accountFound = getAccount(em, id);
 142             Date now = new Date();
 143             checkAllowedUpdates(account, accountFound);
 144             //if userid and password are given, add to default id provider
 145             if (account.getUserId() != null && hasPassword(account.getPassword())) {
 146                 updateUser(em, account);
 147             }
 148             account = em.merge(account);
 149             account.setUpdatedAtItem(now);
 150             if (logger.isDebugEnabled()) {
 151                 logger.debug("merged account=" + account.toString());
 152             }
 153             em.getTransaction().commit();
 154             handler.complete(Action.UPDATE, wrapDoc);
 155         } catch (BadRequestException bre) {
 156             if (em != null && em.getTransaction().isActive()) {
 157                 em.getTransaction().rollback();
 158             }
 159             throw bre;
 160         } catch (DocumentException de) {
 161             if (em != null && em.getTransaction().isActive()) {
 162                 em.getTransaction().rollback();
 163             }
 164             throw de;
 165         } catch (Exception e) {
 166             if (logger.isDebugEnabled()) {
 167                 logger.debug("Caught exception ", e);
 168             }
 169             throw new DocumentException(e);
 170         } finally {
 171             if (emf != null) {
 172                 JpaStorageUtils.releaseEntityManagerFactory(emf);
 173             }
 174         }
 175     }
 176
 177     @Override
 178     public void delete(ServiceContext ctx, String id)
 179             throws DocumentNotFoundException,
 180             DocumentException {
 181
 182         if (logger.isDebugEnabled()) {
 183             logger.debug("deleting entity with id=" + id);
 184         }
 185         if (ctx == null) {
 186             throw new IllegalArgumentException(
 187                     "AccountStorageClient.delete : ctx is missing");
 188         }
 189         EntityManagerFactory emf = null;
 190         EntityManager em = null;
 191         try {
 192             emf = JpaStorageUtils.getEntityManagerFactory();
 193             em = emf.createEntityManager();
 194             //TODO investigate if deep delete is possible
 195             //query an delete is inefficient
 196             AccountsCommon accountFound = getAccount(em, id);
 197
 198             //TODO: add tenant id
 199
 200             //if userid gives any indication about the id provider, it should
 201             //be used to avoid the following approach
 202             Query usrDel = null;
 203             User userLocal = getUser(em, accountFound);
 204             if (userLocal != null) {
 205                 StringBuilder usrDelStr = new StringBuilder("DELETE FROM ");
 206                 usrDelStr.append(User.class.getCanonicalName());
 207                 usrDelStr.append(" WHERE username = :username");
 208                 //TODO: add tenant id
 209                 usrDel = em.createQuery(usrDelStr.toString());
 210                 usrDel.setParameter("username", accountFound.getUserId());
 211             }
 212             em.getTransaction().begin();
 213
 214             if (userLocal != null) {
 215                 int usrDelCount = usrDel.executeUpdate();
 216                 if (usrDelCount != 1) {
 217                     if (em != null && em.getTransaction().isActive()) {
 218                         em.getTransaction().rollback();
 219                     }
 220                     String msg = "could not find user with username=" + accountFound.getUserId();
 221                     logger.error(msg);
 222                     throw new DocumentNotFoundException(msg);
 223                 }
 224             }
 225             em.remove(accountFound);
 226             em.getTransaction().commit();
 227
 228         } catch (DocumentException de) {
 229             if (em != null && em.getTransaction().isActive()) {
 230                 em.getTransaction().rollback();
 231             }
 232             throw de;
 233         } catch (Exception e) {
 234             if (logger.isDebugEnabled()) {
 235                 logger.debug("Caught exception ", e);
 236             }
 237             if (em != null && em.getTransaction().isActive()) {
 238                 em.getTransaction().rollback();
 239             }
 240             throw new DocumentException(e);
 241         } finally {
 242             if (emf != null) {
 243                 JpaStorageUtils.releaseEntityManagerFactory(emf);
 244             }
 245         }
 246     }
 247
 248     private AccountsCommon getAccount(EntityManager em, String id) throws DocumentNotFoundException {
 249         AccountsCommon accountFound = em.find(AccountsCommon.class, id);
 250         if (accountFound == null) {
 251             if (em != null && em.getTransaction().isActive()) {
 252                 em.getTransaction().rollback();
 253             }
 254             String msg = "could not find account with id=" + id;
 255             logger.error(msg);
 256             throw new DocumentNotFoundException(msg);
 257         }
 258         return accountFound;
 259     }
 260
 261     private boolean checkAllowedUpdates(AccountsCommon toAccount, AccountsCommon fromAccount) throws BadRequestException {
 262         if (!fromAccount.getUserId().equals(toAccount.getUserId())) {
 263             String msg = "User id " + toAccount.getUserId() + " does not match "
 264                     + "for given account with csid=" + fromAccount.getCsid();
 265             logger.error(msg);
 266             logger.debug(msg + " found userid=" + fromAccount.getUserId());
 267             throw new BadRequestException(msg);
 268         }
 269         return true;
 270     }
 271
 272     private User createUser(AccountsCommon account) throws Exception {
 273         User user = new User();
 274         user.setUsername(account.getUserId());
 275         if (hasPassword(account.getPassword())) {
 276             user.setPasswd(getEncPassword(account));
 277         }
 278         user.setCreatedAtItem(new Date());
 279         return user;
 280     }
 281
 282     private User getUser(EntityManager em, AccountsCommon account) throws DocumentNotFoundException {
 283         User userFound = em.find(User.class, account.getUserId());
 284         if (userFound == null) {
 285             if (em != null && em.getTransaction().isActive()) {
 286                 em.getTransaction().rollback();
 287             }
 288             String msg = "could not find user with id=" + account.getUserId();
 289             logger.error(msg);
 290             throw new DocumentNotFoundException(msg);
 291         }
 292         return userFound;
 293     }
 294
 295     private void updateUser(EntityManager em, AccountsCommon account) throws Exception {
 296         User userFound = getUser(em, account);
 297         if (userFound != null) {
 298             userFound.setPasswd(getEncPassword(account));
 299             userFound.setUpdatedAtItem(new Date());
 300             if (logger.isDebugEnabled()) {
 301                 logger.debug("updated user=" + userFound.toString());
 302             }
 303             em.persist(userFound);
 304         }
 305     }
 306
 307     private String getEncPassword(AccountsCommon account) throws BadRequestException {
 308         //jaxb unmarshaller already unmarshal xs:base64Binary, no need to b64 decode
 309         //byte[] bpass = Base64.decodeBase64(account.getPassword());
 310         try {
 311             SecurityUtils.validatePassword(new String(account.getPassword()));
 312         } catch (Exception e) {
 313             throw new BadRequestException(e.getMessage());
 314         }
 315         String secEncPasswd = SecurityUtils.createPasswordHash(
 316                 account.getUserId(), new String(account.getPassword()));
 317         return secEncPasswd;
 318     }
 319
 320     private boolean hasPassword(byte[] bpass) {
 321         return bpass != null && bpass.length > 0;
 322     }
 323 //    private UserTenant createTenantAssoc(AccountsCommon account) {
 324 //        UserTenant userTenant = new UserTenant();
 325 //        userTenant.setUserId(account.getUserId());
 326 //        List<AccountsCommon.Tenant> atl = account.getTenant();
 327 //        List<UserTenant.Tenant> utl =
 328 //                new ArrayList<UserTenant.Tenant>();
 329 //        for (AccountsCommon.Tenant at : atl) {
 330 //            UserTenant.Tenant ut = new UserTenant.Tenant();
 331 //            ut.setId(at.getId());
 332 //            ut.setName(at.getName());
 333 //            utl.add(ut);
 334 //        }
 335 //        userTenant.setTenant(utl);
 336 //        return userTenant;
 337 //    }
 338 }