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.PrivilegedActionException;
   7 import java.security.PrivilegedExceptionAction;
   8 import java.time.ZonedDateTime;
   9 import java.util.Collection;
  10 import java.util.HashMap;
  11 import java.util.HashSet;
  12 import java.util.Hashtable;
  13 import java.util.LinkedHashSet;
  14 import java.util.Locale;
  15 import java.util.Map;
  16 import java.util.Set;
  17 import java.util.UUID;
  18
  19 import javax.crypto.SecretKey;
  20 import javax.jcr.Repository;
  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 import javax.security.auth.x500.X500Principal;
  28
  29 import org.apache.commons.logging.Log;
  30 import org.apache.commons.logging.LogFactory;
  31 import org.argeo.api.NodeConstants;
  32 import org.argeo.api.security.NodeSecurityUtils;
  33 import org.argeo.cms.auth.CmsSession;
  34 import org.argeo.jcr.JcrUtils;
  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         private Map<String, Object> views = new HashMap<>();
  65
  66         public CmsSessionImpl(Subject initialSubject, Authorization authorization, Locale locale, String localSessionId) {
  67                 this.creationTime = ZonedDateTime.now();
  68                 this.locale = locale;
  69                 this.initialContext = Subject.doAs(initialSubject, new PrivilegedAction<AccessControlContext>() {
  70
  71                         @Override
  72                         public AccessControlContext run() {
  73                                 return AccessController.getContext();
  74                         }
  75
  76                 });
  77                 // this.initialSubject = initialSubject;
  78                 this.localSessionId = localSessionId;
  79                 this.authorization = authorization;
  80                 if (authorization.getName() != null)
  81                         try {
  82                                 this.userDn = new LdapName(authorization.getName());
  83                                 this.anonymous = false;
  84                         } catch (InvalidNameException e) {
  85                                 throw new IllegalArgumentException("Invalid user name " + authorization.getName(), e);
  86                         }
  87                 else {
  88                         this.userDn = NodeSecurityUtils.ROLE_ANONYMOUS_NAME;
  89                         this.anonymous = true;
  90                 }
  91                 this.uuid = UUID.randomUUID();
  92                 // register as service
  93                 Hashtable<String, String> props = new Hashtable<>();
  94                 props.put(CmsSession.USER_DN, userDn.toString());
  95                 props.put(CmsSession.SESSION_UUID, uuid.toString());
  96                 props.put(CmsSession.SESSION_LOCAL_ID, localSessionId);
  97                 serviceRegistration = bc.registerService(CmsSession.class, this, props);
  98         }
  99
 100         public void close() {
 101                 end = ZonedDateTime.now();
 102                 serviceRegistration.unregister();
 103
 104                 synchronized (this) {
 105                         // TODO check data session in use ?
 106                         for (String path : dataSessions.keySet())
 107                                 JcrUtils.logoutQuietly(dataSessions.get(path));
 108                         for (Session session : additionalDataSessions)
 109                                 JcrUtils.logoutQuietly(session);
 110                 }
 111
 112                 try {
 113                         LoginContext lc;
 114                         if (isAnonymous()) {
 115                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_ANONYMOUS, getSubject());
 116                         } else {
 117                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, getSubject());
 118                         }
 119                         lc.logout();
 120                 } catch (LoginException e) {
 121                         log.warn("Could not logout " + getSubject() + ": " + e);
 122                 }
 123                 log.debug("Closed " + this);
 124         }
 125
 126         private Subject getSubject() {
 127                 return Subject.getSubject(initialContext);
 128         }
 129
 130         public Set<SecretKey> getSecretKeys() {
 131                 return getSubject().getPrivateCredentials(SecretKey.class);
 132         }
 133
 134         public Session newDataSession(String cn, String workspace, Repository repository) {
 135                 return login(repository, workspace);
 136         }
 137
 138         public synchronized Session getDataSession(String cn, String workspace, Repository repository) {
 139                 // FIXME make it more robust
 140                 if (workspace == null)
 141                         workspace = NodeConstants.SYS_WORKSPACE;
 142                 String path = cn + '/' + workspace;
 143                 if (dataSessionsInUse.contains(path)) {
 144                         try {
 145                                 wait(1000);
 146                                 if (dataSessionsInUse.contains(path)) {
 147                                         Session session = login(repository, workspace);
 148                                         additionalDataSessions.add(session);
 149                                         if (log.isTraceEnabled())
 150                                                 log.trace("Additional data session " + path + " for " + userDn);
 151                                         return session;
 152                                 }
 153                         } catch (InterruptedException e) {
 154                                 // silent
 155                         }
 156                 }
 157
 158                 Session session = null;
 159                 if (dataSessions.containsKey(path)) {
 160                         session = dataSessions.get(path);
 161                 } else {
 162                         session = login(repository, workspace);
 163                         dataSessions.put(path, session);
 164                         if (log.isTraceEnabled())
 165                                 log.trace("New data session " + path + " for " + userDn);
 166                 }
 167                 dataSessionsInUse.add(path);
 168                 return session;
 169         }
 170
 171         private Session login(Repository repository, String workspace) {
 172                 try {
 173                         return Subject.doAs(getSubject(), new PrivilegedExceptionAction<Session>() {
 174                                 @Override
 175                                 public Session run() throws Exception {
 176                                         return repository.login(workspace);
 177                                 }
 178                         });
 179                 } catch (PrivilegedActionException e) {
 180                         throw new IllegalStateException("Cannot log in " + userDn + " to JCR", e);
 181                 }
 182         }
 183
 184         public synchronized void releaseDataSession(String cn, Session session) {
 185                 if (additionalDataSessions.contains(session)) {
 186                         JcrUtils.logoutQuietly(session);
 187                         additionalDataSessions.remove(session);
 188                         if (log.isTraceEnabled())
 189                                 log.trace("Remove additional data session " + session);
 190                         return;
 191                 }
 192                 String path = cn + '/' + session.getWorkspace().getName();
 193                 if (!dataSessionsInUse.contains(path))
 194                         log.warn("Data session " + path + " was not in use for " + userDn);
 195                 dataSessionsInUse.remove(path);
 196                 Session registeredSession = dataSessions.get(path);
 197                 if (session != registeredSession)
 198                         log.warn("Data session " + path + " not consistent for " + userDn);
 199                 if (log.isTraceEnabled())
 200                         log.trace("Released data session " + session + " for " + path);
 201                 notifyAll();
 202         }
 203
 204         @Override
 205         public boolean isValid() {
 206                 return !isClosed();
 207         }
 208
 209         protected boolean isClosed() {
 210                 return getEnd() != null;
 211         }
 212
 213         @Override
 214         public Authorization getAuthorization() {
 215                 return authorization;
 216         }
 217
 218         @Override
 219         public UUID getUuid() {
 220                 return uuid;
 221         }
 222
 223         @Override
 224         public LdapName getUserDn() {
 225                 return userDn;
 226         }
 227
 228         @Override
 229         public String getUserRole() {
 230                 return new X500Principal(authorization.getName()).getName();
 231         }
 232
 233         @Override
 234         public String getLocalId() {
 235                 return localSessionId;
 236         }
 237
 238         @Override
 239         public boolean isAnonymous() {
 240                 return anonymous;
 241         }
 242
 243         @Override
 244         public Locale getLocale() {
 245                 return locale;
 246         }
 247
 248         @Override
 249         public ZonedDateTime getCreationTime() {
 250                 return creationTime;
 251         }
 252
 253         @Override
 254         public ZonedDateTime getEnd() {
 255                 return end;
 256         }
 257
 258         @Override
 259         public void registerView(String uid, Object view) {
 260                 if (views.containsKey(uid))
 261                         throw new IllegalArgumentException("View " + uid + " is already registered.");
 262                 views.put(uid, view);
 263         }
 264
 265         public String toString() {
 266                 return "CMS Session " + userDn + " local=" + localSessionId + ", uuid=" + uuid;
 267         }
 268
 269         public static CmsSessionImpl getByLocalId(String localId) {
 270                 Collection<ServiceReference<CmsSession>> sr;
 271                 try {
 272                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_LOCAL_ID + "=" + localId + ")");
 273                 } catch (InvalidSyntaxException e) {
 274                         throw new IllegalArgumentException("Cannot get CMS session for id " + localId, 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 IllegalStateException(sr.size() + " CMS sessions registered for " + localId);
 284
 285         }
 286
 287         public static CmsSessionImpl getByUuid(Object uuid) {
 288                 Collection<ServiceReference<CmsSession>> sr;
 289                 try {
 290                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_UUID + "=" + uuid + ")");
 291                 } catch (InvalidSyntaxException e) {
 292                         throw new IllegalArgumentException("Cannot get CMS session for uuid " + uuid, e);
 293                 }
 294                 ServiceReference<CmsSession> cmsSessionRef;
 295                 if (sr.size() == 1) {
 296                         cmsSessionRef = sr.iterator().next();
 297                         return (CmsSessionImpl) bc.getService(cmsSessionRef);
 298                 } else if (sr.size() == 0) {
 299                         return null;
 300                 } else
 301                         throw new IllegalStateException(sr.size() + " CMS sessions registered for " + uuid);
 302
 303         }
 304
 305         public static void closeInvalidSessions() {
 306                 Collection<ServiceReference<CmsSession>> srs;
 307                 try {
 308                         srs = bc.getServiceReferences(CmsSession.class, null);
 309                         for (ServiceReference<CmsSession> sr : srs) {
 310                                 CmsSession cmsSession = bc.getService(sr);
 311                                 if (!cmsSession.isValid()) {
 312                                         ((CmsSessionImpl) cmsSession).close();
 313                                         if (log.isDebugEnabled())
 314                                                 log.debug("Closed expired CMS session " + cmsSession);
 315                                 }
 316                         }
 317                 } catch (InvalidSyntaxException e) {
 318                         throw new IllegalArgumentException("Cannot get CMS sessions", e);
 319                 }
 320         }
 321 }