CmsSessionImpl.java

   1 package org.argeo.cms.internal.auth;
   2
   3 import java.security.AccessControlContext;
   4 import java.security.AccessController;
   5 import java.security.PrivilegedAction;
   6 import java.security.PrivilegedExceptionAction;
   7 import java.time.ZonedDateTime;
   8 import java.util.Collection;
   9 import java.util.HashMap;
  10 import java.util.HashSet;
  11 import java.util.Hashtable;
  12 import java.util.LinkedHashSet;
  13 import java.util.Locale;
  14 import java.util.Map;
  15 import java.util.Set;
  16 import java.util.UUID;
  17
  18 import javax.crypto.SecretKey;
  19 import javax.jcr.Repository;
  20 import javax.jcr.Session;
  21 import javax.naming.InvalidNameException;
  22 import javax.naming.ldap.LdapName;
  23 import javax.security.auth.Subject;
  24 import javax.security.auth.login.LoginContext;
  25 import javax.security.auth.login.LoginException;
  26
  27 import org.apache.commons.logging.Log;
  28 import org.apache.commons.logging.LogFactory;
  29 import org.argeo.cms.CmsException;
  30 import org.argeo.cms.auth.CmsSession;
  31 import org.argeo.jcr.JcrUtils;
  32 import org.argeo.node.NodeConstants;
  33 import org.argeo.node.security.NodeSecurityUtils;
  34 import org.osgi.framework.BundleContext;
  35 import org.osgi.framework.FrameworkUtil;
  36 import org.osgi.framework.InvalidSyntaxException;
  37 import org.osgi.framework.ServiceReference;
  38 import org.osgi.framework.ServiceRegistration;
  39 import org.osgi.service.useradmin.Authorization;
  40
  41 public class CmsSessionImpl implements CmsSession {
  42         private final static BundleContext bc = FrameworkUtil.getBundle(CmsSessionImpl.class).getBundleContext();
  43         private final static Log log = LogFactory.getLog(CmsSessionImpl.class);
  44
  45         // private final Subject initialSubject;
  46         private final AccessControlContext initialContext;
  47         private final UUID uuid;
  48         private final String localSessionId;
  49         private final Authorization authorization;
  50         private final LdapName userDn;
  51         private final boolean anonymous;
  52
  53         private final ZonedDateTime creationTime;
  54         private ZonedDateTime end;
  55         private final Locale locale;
  56
  57         private ServiceRegistration<CmsSession> serviceRegistration;
  58
  59         private Map<String, Session> dataSessions = new HashMap<>();
  60         private Set<String> dataSessionsInUse = new HashSet<>();
  61         private LinkedHashSet<Session> additionalDataSessions = new LinkedHashSet<>();
  62
  63         public CmsSessionImpl(Subject initialSubject, Authorization authorization, Locale locale, String localSessionId) {
  64                 this.creationTime = ZonedDateTime.now();
  65                 this.locale = locale;
  66                 this.initialContext = Subject.doAs(initialSubject, new PrivilegedAction<AccessControlContext>() {
  67
  68                         @Override
  69                         public AccessControlContext run() {
  70                                 return AccessController.getContext();
  71                         }
  72
  73                 });
  74                 // this.initialSubject = initialSubject;
  75                 this.localSessionId = localSessionId;
  76                 this.authorization = authorization;
  77                 if (authorization.getName() != null)
  78                         try {
  79                                 this.userDn = new LdapName(authorization.getName());
  80                                 this.anonymous = false;
  81                         } catch (InvalidNameException e) {
  82                                 throw new CmsException("Invalid user name " + authorization.getName(), e);
  83                         }
  84                 else {
  85                         this.userDn = NodeSecurityUtils.ROLE_ANONYMOUS_NAME;
  86                         this.anonymous = true;
  87                 }
  88                 this.uuid = UUID.randomUUID();
  89                 // register as service
  90                 Hashtable<String, String> props = new Hashtable<>();
  91                 props.put(CmsSession.USER_DN, userDn.toString());
  92                 props.put(CmsSession.SESSION_UUID, uuid.toString());
  93                 props.put(CmsSession.SESSION_LOCAL_ID, localSessionId);
  94                 serviceRegistration = bc.registerService(CmsSession.class, this, props);
  95         }
  96
  97         public void close() {
  98                 end = ZonedDateTime.now();
  99                 serviceRegistration.unregister();
 100
 101                 synchronized (this) {
 102                         // TODO check data session in use ?
 103                         for (String path : dataSessions.keySet())
 104                                 JcrUtils.logoutQuietly(dataSessions.get(path));
 105                         for (Session session : additionalDataSessions)
 106                                 JcrUtils.logoutQuietly(session);
 107                 }
 108
 109                 try {
 110                         LoginContext lc;
 111                         if (isAnonymous()) {
 112                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_ANONYMOUS, getSubject());
 113                         } else {
 114                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, getSubject());
 115                         }
 116                         lc.logout();
 117                 } catch (LoginException e) {
 118                         log.warn("Could not logout " + getSubject() + ": " + e);
 119                 }
 120                 log.debug("Closed " + this);
 121         }
 122
 123         private Subject getSubject() {
 124                 return Subject.getSubject(initialContext);
 125         }
 126
 127         public Set<SecretKey> getSecretKeys() {
 128                 return getSubject().getPrivateCredentials(SecretKey.class);
 129         }
 130
 131         public synchronized Session getDataSession(String cn, String workspace, Repository repository) {
 132                 // FIXME make it more robust
 133                 if (workspace == null)
 134                         workspace = "main";
 135                 String path = cn + '/' + workspace;
 136                 if (dataSessionsInUse.contains(path)) {
 137                         try {
 138                                 wait(1000);
 139                                 if (dataSessionsInUse.contains(path)) {
 140                                         Session session = login(repository, workspace);
 141                                         additionalDataSessions.add(session);
 142                                         if (log.isTraceEnabled())
 143                                                 log.trace("Additional data session " + path + " for " + userDn);
 144                                         return session;
 145                                 }
 146                         } catch (InterruptedException e) {
 147                                 // silent
 148                         }
 149                 }
 150
 151                 Session session = null;
 152                 if (dataSessions.containsKey(path)) {
 153                         session = dataSessions.get(path);
 154                 } else {
 155                         session = login(repository, workspace);
 156                         dataSessions.put(path, session);
 157                         if (log.isTraceEnabled())
 158                                 log.trace("New data session " + path + " for " + userDn);
 159                 }
 160                 dataSessionsInUse.add(path);
 161                 return session;
 162         }
 163
 164         private Session login(Repository repository, String workspace) {
 165                 try {
 166                         return Subject.doAs(getSubject(), new PrivilegedExceptionAction<Session>() {
 167                                 @Override
 168                                 public Session run() throws Exception {
 169                                         return repository.login(workspace);
 170                                 }
 171                         });
 172                 } catch (Exception e) {
 173                         throw new CmsException("Cannot log in " + userDn + " to JCR", e);
 174                 }
 175         }
 176
 177         public synchronized void releaseDataSession(String cn, Session session) {
 178                 if (additionalDataSessions.contains(session)) {
 179                         JcrUtils.logoutQuietly(session);
 180                         additionalDataSessions.remove(session);
 181                         if (log.isTraceEnabled())
 182                                 log.trace("Remove additional data session " + session);
 183                         return;
 184                 }
 185                 String path = cn + '/' + session.getWorkspace().getName();
 186                 if (!dataSessionsInUse.contains(path))
 187                         log.warn("Data session " + path + " was not in use for " + userDn);
 188                 dataSessionsInUse.remove(path);
 189                 Session registeredSession = dataSessions.get(path);
 190                 if (session != registeredSession)
 191                         log.warn("Data session " + path + " not consistent for " + userDn);
 192                 if (log.isTraceEnabled())
 193                         log.trace("Released data session " + session + " for " + path);
 194                 notifyAll();
 195         }
 196
 197         @Override
 198         public boolean isValid() {
 199                 return !isClosed();
 200         }
 201
 202         protected boolean isClosed() {
 203                 return getEnd() != null;
 204         }
 205
 206         @Override
 207         public Authorization getAuthorization() {
 208                 return authorization;
 209         }
 210
 211         @Override
 212         public UUID getUuid() {
 213                 return uuid;
 214         }
 215
 216         @Override
 217         public LdapName getUserDn() {
 218                 return userDn;
 219         }
 220
 221         @Override
 222         public String getLocalId() {
 223                 return localSessionId;
 224         }
 225
 226         @Override
 227         public boolean isAnonymous() {
 228                 return anonymous;
 229         }
 230
 231         @Override
 232         public Locale getLocale() {
 233                 return locale;
 234         }
 235
 236         @Override
 237         public ZonedDateTime getCreationTime() {
 238                 return creationTime;
 239         }
 240
 241         @Override
 242         public ZonedDateTime getEnd() {
 243                 return end;
 244         }
 245
 246         public String toString() {
 247                 return "CMS Session " + userDn + " local=" + localSessionId + ", uuid=" + uuid;
 248         }
 249
 250         public static CmsSessionImpl getByLocalId(String localId) {
 251                 Collection<ServiceReference<CmsSession>> sr;
 252                 try {
 253                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_LOCAL_ID + "=" + localId + ")");
 254                 } catch (InvalidSyntaxException e) {
 255                         throw new CmsException("Cannot get CMS session for id " + localId, e);
 256                 }
 257                 ServiceReference<CmsSession> cmsSessionRef;
 258                 if (sr.size() == 1) {
 259                         cmsSessionRef = sr.iterator().next();
 260                         return (CmsSessionImpl) bc.getService(cmsSessionRef);
 261                 } else if (sr.size() == 0) {
 262                         return null;
 263                 } else
 264                         throw new CmsException(sr.size() + " CMS sessions registered for " + localId);
 265
 266         }
 267
 268         public static CmsSessionImpl getByUuid(Object uuid) {
 269                 Collection<ServiceReference<CmsSession>> sr;
 270                 try {
 271                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_UUID + "=" + uuid + ")");
 272                 } catch (InvalidSyntaxException e) {
 273                         throw new CmsException("Cannot get CMS session for uuid " + uuid, e);
 274                 }
 275                 ServiceReference<CmsSession> cmsSessionRef;
 276                 if (sr.size() == 1) {
 277                         cmsSessionRef = sr.iterator().next();
 278                         return (CmsSessionImpl) bc.getService(cmsSessionRef);
 279                 } else if (sr.size() == 0) {
 280                         return null;
 281                 } else
 282                         throw new CmsException(sr.size() + " CMS sessions registered for " + uuid);
 283
 284         }
 285
 286         public static void closeInvalidSessions() {
 287                 Collection<ServiceReference<CmsSession>> srs;
 288                 try {
 289                         srs = bc.getServiceReferences(CmsSession.class, null);
 290                         for (ServiceReference<CmsSession> sr : srs) {
 291                                 CmsSession cmsSession = bc.getService(sr);
 292                                 if (!cmsSession.isValid()) {
 293                                         ((CmsSessionImpl) cmsSession).close();
 294                                         if (log.isDebugEnabled())
 295                                                 log.debug("Closed expired CMS session " + cmsSession);
 296                                 }
 297                         }
 298                 } catch (InvalidSyntaxException e) {
 299                         throw new CmsException("Cannot get CMS sessions", e);
 300                 }
 301         }
 302 }