org.argeo.cms/src/org/argeo/cms/internal/auth/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.RepositoryException;
  21 import javax.jcr.Session;
  22 import javax.naming.InvalidNameException;
  23 import javax.naming.ldap.LdapName;
  24 import javax.security.auth.Subject;
  25 import javax.security.auth.login.LoginContext;
  26 import javax.security.auth.login.LoginException;
  27
  28 import org.apache.commons.logging.Log;
  29 import org.apache.commons.logging.LogFactory;
  30 import org.argeo.cms.CmsException;
  31 import org.argeo.cms.auth.CmsSession;
  32 import org.argeo.jcr.JcrUtils;
  33 import org.argeo.node.NodeConstants;
  34 import org.argeo.node.security.NodeSecurityUtils;
  35 import org.osgi.framework.BundleContext;
  36 import org.osgi.framework.FrameworkUtil;
  37 import org.osgi.framework.InvalidSyntaxException;
  38 import org.osgi.framework.ServiceReference;
  39 import org.osgi.framework.ServiceRegistration;
  40 import org.osgi.service.useradmin.Authorization;
  41
  42 public class CmsSessionImpl implements CmsSession {
  43         private final static BundleContext bc = FrameworkUtil.getBundle(CmsSessionImpl.class).getBundleContext();
  44         private final static Log log = LogFactory.getLog(CmsSessionImpl.class);
  45
  46         // private final Subject initialSubject;
  47         private final AccessControlContext initialContext;
  48         private final UUID uuid;
  49         private final String localSessionId;
  50         private final Authorization authorization;
  51         private final LdapName userDn;
  52         private final boolean anonymous;
  53
  54         private final ZonedDateTime creationTime;
  55         private ZonedDateTime end;
  56         private final Locale locale;
  57
  58         private ServiceRegistration<CmsSession> serviceRegistration;
  59
  60         private Map<String, Session> dataSessions = new HashMap<>();
  61         private Set<String> dataSessionsInUse = new HashSet<>();
  62         private LinkedHashSet<Session> additionalDataSessions = new LinkedHashSet<>();
  63
  64         public CmsSessionImpl(Subject initialSubject, Authorization authorization, Locale locale, String localSessionId) {
  65                 this.creationTime = ZonedDateTime.now();
  66                 this.locale = locale;
  67                 this.initialContext = Subject.doAs(initialSubject, new PrivilegedAction<AccessControlContext>() {
  68
  69                         @Override
  70                         public AccessControlContext run() {
  71                                 return AccessController.getContext();
  72                         }
  73
  74                 });
  75                 // this.initialSubject = initialSubject;
  76                 this.localSessionId = localSessionId;
  77                 this.authorization = authorization;
  78                 if (authorization.getName() != null)
  79                         try {
  80                                 this.userDn = new LdapName(authorization.getName());
  81                                 this.anonymous = false;
  82                         } catch (InvalidNameException e) {
  83                                 throw new CmsException("Invalid user name " + authorization.getName(), e);
  84                         }
  85                 else {
  86                         this.userDn = NodeSecurityUtils.ROLE_ANONYMOUS_NAME;
  87                         this.anonymous = true;
  88                 }
  89                 this.uuid = UUID.randomUUID();
  90                 // register as service
  91                 Hashtable<String, String> props = new Hashtable<>();
  92                 props.put(CmsSession.USER_DN, userDn.toString());
  93                 props.put(CmsSession.SESSION_UUID, uuid.toString());
  94                 props.put(CmsSession.SESSION_LOCAL_ID, localSessionId);
  95                 serviceRegistration = bc.registerService(CmsSession.class, this, props);
  96         }
  97
  98         public void close() {
  99                 end = ZonedDateTime.now();
 100                 serviceRegistration.unregister();
 101
 102                 synchronized (this) {
 103                         // TODO check data session in use ?
 104                         for (String path : dataSessions.keySet())
 105                                 JcrUtils.logoutQuietly(dataSessions.get(path));
 106                         for (Session session : additionalDataSessions)
 107                                 JcrUtils.logoutQuietly(session);
 108                 }
 109
 110                 try {
 111                         LoginContext lc;
 112                         if (isAnonymous()) {
 113                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_ANONYMOUS, getSubject());
 114                         } else {
 115                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, getSubject());
 116                         }
 117                         lc.logout();
 118                 } catch (LoginException e) {
 119                         log.warn("Could not logout " + getSubject() + ": " + e);
 120                 }
 121                 log.debug("Closed " + this);
 122         }
 123
 124         private Subject getSubject() {
 125                 return Subject.getSubject(initialContext);
 126         }
 127
 128         public Set<SecretKey> getSecretKeys() {
 129                 return getSubject().getPrivateCredentials(SecretKey.class);
 130         }
 131
 132         public synchronized Session getDataSession(String cn, String workspace, Repository repository) {
 133                 // FIXME make it more robust
 134                 if (workspace == null)
 135                         workspace = "main";
 136                 String path = cn + '/' + workspace;
 137                 if (dataSessionsInUse.contains(path)) {
 138                         try {
 139                                 wait(1000);
 140                                 if (dataSessionsInUse.contains(path)) {
 141                                         Session session = login(repository, workspace);
 142                                         additionalDataSessions.add(session);
 143                                         if (log.isTraceEnabled())
 144                                                 log.trace("Additional data session " + path + " for " + userDn);
 145                                         return session;
 146                                 }
 147                         } catch (InterruptedException e) {
 148                                 // silent
 149                         }
 150                 }
 151
 152                 Session session = null;
 153                 if (dataSessions.containsKey(path)) {
 154                         session = dataSessions.get(path);
 155                 } else {
 156                         session = login(repository, workspace);
 157                         dataSessions.put(path, session);
 158                         if (log.isTraceEnabled())
 159                                 log.trace("New data session " + path + " for " + userDn);
 160                 }
 161                 dataSessionsInUse.add(path);
 162                 return session;
 163         }
 164
 165         private Session login(Repository repository, String workspace) {
 166                 try {
 167                         return Subject.doAs(getSubject(), new PrivilegedExceptionAction<Session>() {
 168                                 @Override
 169                                 public Session run() throws Exception {
 170                                         return repository.login(workspace);
 171                                 }
 172                         });
 173                 } catch (Exception e) {
 174                         throw new CmsException("Cannot log in " + userDn + " to JCR", e);
 175                 }
 176         }
 177
 178         public synchronized void releaseDataSession(String cn, Session session) {
 179                 if (additionalDataSessions.contains(session)) {
 180                         JcrUtils.logoutQuietly(session);
 181                         additionalDataSessions.remove(session);
 182                         if (log.isTraceEnabled())
 183                                 log.trace("Remove additional data session " + session);
 184                         return;
 185                 }
 186                 String path = cn + '/' + session.getWorkspace().getName();
 187                 if (!dataSessionsInUse.contains(path))
 188                         log.warn("Data session " + path + " was not in use for " + userDn);
 189                 dataSessionsInUse.remove(path);
 190                 Session registeredSession = dataSessions.get(path);
 191                 if (session != registeredSession)
 192                         log.warn("Data session " + path + " not consistent for " + userDn);
 193                 if (log.isTraceEnabled())
 194                         log.trace("Released data session " + session + " for " + path);
 195                 notifyAll();
 196         }
 197
 198         @Override
 199         public boolean isValid() {
 200                 return !isClosed();
 201         }
 202
 203         protected boolean isClosed() {
 204                 return getEnd() != null;
 205         }
 206
 207         @Override
 208         public Authorization getAuthorization() {
 209                 return authorization;
 210         }
 211
 212         @Override
 213         public UUID getUuid() {
 214                 return uuid;
 215         }
 216
 217         @Override
 218         public LdapName getUserDn() {
 219                 return userDn;
 220         }
 221
 222         @Override
 223         public String getLocalId() {
 224                 return localSessionId;
 225         }
 226
 227         @Override
 228         public boolean isAnonymous() {
 229                 return anonymous;
 230         }
 231
 232         @Override
 233         public Locale getLocale() {
 234                 return locale;
 235         }
 236
 237         @Override
 238         public ZonedDateTime getCreationTime() {
 239                 return creationTime;
 240         }
 241
 242         @Override
 243         public ZonedDateTime getEnd() {
 244                 return end;
 245         }
 246
 247         public String toString() {
 248                 return "CMS Session " + userDn + " local=" + localSessionId + ", uuid=" + uuid;
 249         }
 250
 251         public static CmsSessionImpl getByLocalId(String localId) {
 252                 Collection<ServiceReference<CmsSession>> sr;
 253                 try {
 254                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_LOCAL_ID + "=" + localId + ")");
 255                 } catch (InvalidSyntaxException e) {
 256                         throw new CmsException("Cannot get CMS session for id " + localId, e);
 257                 }
 258                 ServiceReference<CmsSession> cmsSessionRef;
 259                 if (sr.size() == 1) {
 260                         cmsSessionRef = sr.iterator().next();
 261                         return (CmsSessionImpl) bc.getService(cmsSessionRef);
 262                 } else if (sr.size() == 0) {
 263                         return null;
 264                 } else
 265                         throw new CmsException(sr.size() + " CMS sessions registered for " + localId);
 266
 267         }
 268
 269         public static CmsSessionImpl getByUuid(Object uuid) {
 270                 Collection<ServiceReference<CmsSession>> sr;
 271                 try {
 272                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_UUID + "=" + uuid + ")");
 273                 } catch (InvalidSyntaxException e) {
 274                         throw new CmsException("Cannot get CMS session for uuid " + uuid, e);
 275                 }
 276                 ServiceReference<CmsSession> cmsSessionRef;
 277                 if (sr.size() == 1) {
 278                         cmsSessionRef = sr.iterator().next();
 279                         return (CmsSessionImpl) bc.getService(cmsSessionRef);
 280                 } else if (sr.size() == 0) {
 281                         return null;
 282                 } else
 283                         throw new CmsException(sr.size() + " CMS sessions registered for " + uuid);
 284
 285         }
 286
 287         public static void closeInvalidSessions() {
 288                 Collection<ServiceReference<CmsSession>> srs;
 289                 try {
 290                         srs = bc.getServiceReferences(CmsSession.class, null);
 291                         for (ServiceReference<CmsSession> sr : srs) {
 292                                 CmsSession cmsSession = bc.getService(sr);
 293                                 if (!cmsSession.isValid()) {
 294                                         ((CmsSessionImpl) cmsSession).close();
 295                                         if (log.isDebugEnabled())
 296                                                 log.debug("Closed expired CMS session " + cmsSession);
 297                                 }
 298                         }
 299                 } catch (InvalidSyntaxException e) {
 300                         throw new CmsException("Cannot get CMS sessions", e);
 301                 }
 302         }
 303 }