CmsSessionImpl.java

   1 package org.argeo.cms.internal.auth;
   2
   3 import java.io.Serializable;
   4 import java.security.AccessControlContext;
   5 import java.security.AccessController;
   6 import java.security.PrivilegedAction;
   7 import java.time.ZonedDateTime;
   8 import java.util.Collection;
   9 import java.util.HashMap;
  10 import java.util.Hashtable;
  11 import java.util.Locale;
  12 import java.util.Map;
  13 import java.util.Set;
  14 import java.util.UUID;
  15
  16 import javax.crypto.SecretKey;
  17 import javax.naming.InvalidNameException;
  18 import javax.naming.ldap.LdapName;
  19 import javax.security.auth.Subject;
  20 import javax.security.auth.login.LoginContext;
  21 import javax.security.auth.login.LoginException;
  22 import javax.security.auth.x500.X500Principal;
  23
  24 import org.apache.commons.logging.Log;
  25 import org.apache.commons.logging.LogFactory;
  26 import org.argeo.api.NodeConstants;
  27 import org.argeo.api.security.NodeSecurityUtils;
  28 import org.argeo.cms.auth.CmsSession;
  29 import org.osgi.framework.BundleContext;
  30 import org.osgi.framework.FrameworkUtil;
  31 import org.osgi.framework.InvalidSyntaxException;
  32 import org.osgi.framework.ServiceReference;
  33 import org.osgi.framework.ServiceRegistration;
  34 import org.osgi.service.useradmin.Authorization;
  35
  36 /** Default CMS session implementation. */
  37 public class CmsSessionImpl implements CmsSession, Serializable {
  38         private static final long serialVersionUID = 1867719354246307225L;
  39         private final static BundleContext bc = FrameworkUtil.getBundle(CmsSessionImpl.class).getBundleContext();
  40         private final static Log log = LogFactory.getLog(CmsSessionImpl.class);
  41
  42         // private final Subject initialSubject;
  43         private transient AccessControlContext accessControlContext;
  44         private final UUID uuid;
  45         private final String localSessionId;
  46         private Authorization authorization;
  47         private final LdapName userDn;
  48         private final boolean anonymous;
  49
  50         private final ZonedDateTime creationTime;
  51         private ZonedDateTime end;
  52         private final Locale locale;
  53
  54         private ServiceRegistration<CmsSession> serviceRegistration;
  55
  56         private Map<String, Object> views = new HashMap<>();
  57
  58         public CmsSessionImpl(Subject initialSubject, Authorization authorization, Locale locale, String localSessionId) {
  59                 this.creationTime = ZonedDateTime.now();
  60                 this.locale = locale;
  61                 this.accessControlContext = Subject.doAs(initialSubject, new PrivilegedAction<AccessControlContext>() {
  62
  63                         @Override
  64                         public AccessControlContext run() {
  65                                 return AccessController.getContext();
  66                         }
  67
  68                 });
  69                 // this.initialSubject = initialSubject;
  70                 this.localSessionId = localSessionId;
  71                 this.authorization = authorization;
  72                 if (authorization.getName() != null)
  73                         try {
  74                                 this.userDn = new LdapName(authorization.getName());
  75                                 this.anonymous = false;
  76                         } catch (InvalidNameException e) {
  77                                 throw new IllegalArgumentException("Invalid user name " + authorization.getName(), e);
  78                         }
  79                 else {
  80                         this.userDn = NodeSecurityUtils.ROLE_ANONYMOUS_NAME;
  81                         this.anonymous = true;
  82                 }
  83                 this.uuid = UUID.randomUUID();
  84                 // register as service
  85                 Hashtable<String, String> props = new Hashtable<>();
  86                 props.put(CmsSession.USER_DN, userDn.toString());
  87                 props.put(CmsSession.SESSION_UUID, uuid.toString());
  88                 props.put(CmsSession.SESSION_LOCAL_ID, localSessionId);
  89                 serviceRegistration = bc.registerService(CmsSession.class, this, props);
  90         }
  91
  92         public void close() {
  93                 end = ZonedDateTime.now();
  94                 serviceRegistration.unregister();
  95
  96
  97                 try {
  98                         LoginContext lc;
  99                         if (isAnonymous()) {
 100                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_ANONYMOUS, getSubject());
 101                         } else {
 102                                 lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, getSubject());
 103                         }
 104                         lc.logout();
 105                 } catch (LoginException e) {
 106                         log.warn("Could not logout " + getSubject() + ": " + e);
 107                 } finally {
 108                         accessControlContext = null;
 109                 }
 110                 log.debug("Closed " + this);
 111         }
 112
 113         public Subject getSubject() {
 114                 return Subject.getSubject(accessControlContext);
 115         }
 116
 117         public Set<SecretKey> getSecretKeys() {
 118                 checkValid();
 119                 return getSubject().getPrivateCredentials(SecretKey.class);
 120         }
 121
 122         @Override
 123         public boolean isValid() {
 124                 return !isClosed();
 125         }
 126
 127         private void checkValid() {
 128                 if (!isValid())
 129                         throw new IllegalStateException("CMS session " + uuid + " is not valid since " + end);
 130         }
 131
 132         final protected boolean isClosed() {
 133                 return getEnd() != null;
 134         }
 135
 136         @Override
 137         public Authorization getAuthorization() {
 138                 checkValid();
 139                 return authorization;
 140         }
 141
 142         @Override
 143         public UUID getUuid() {
 144                 return uuid;
 145         }
 146
 147         @Override
 148         public LdapName getUserDn() {
 149                 return userDn;
 150         }
 151
 152         @Override
 153         public String getUserRole() {
 154                 return new X500Principal(authorization.getName()).getName();
 155         }
 156
 157         @Override
 158         public String getLocalId() {
 159                 return localSessionId;
 160         }
 161
 162         @Override
 163         public boolean isAnonymous() {
 164                 return anonymous;
 165         }
 166
 167         @Override
 168         public Locale getLocale() {
 169                 return locale;
 170         }
 171
 172         @Override
 173         public ZonedDateTime getCreationTime() {
 174                 return creationTime;
 175         }
 176
 177         @Override
 178         public ZonedDateTime getEnd() {
 179                 return end;
 180         }
 181
 182         @Override
 183         public void registerView(String uid, Object view) {
 184                 checkValid();
 185                 if (views.containsKey(uid))
 186                         throw new IllegalArgumentException("View " + uid + " is already registered.");
 187                 views.put(uid, view);
 188         }
 189
 190         public String toString() {
 191                 return "CMS Session " + userDn + " local=" + localSessionId + ", uuid=" + uuid;
 192         }
 193
 194         public static CmsSessionImpl getByLocalId(String localId) {
 195                 Collection<ServiceReference<CmsSession>> sr;
 196                 try {
 197                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_LOCAL_ID + "=" + localId + ")");
 198                 } catch (InvalidSyntaxException e) {
 199                         throw new IllegalArgumentException("Cannot get CMS session for id " + localId, e);
 200                 }
 201                 ServiceReference<CmsSession> cmsSessionRef;
 202                 if (sr.size() == 1) {
 203                         cmsSessionRef = sr.iterator().next();
 204                         return (CmsSessionImpl) bc.getService(cmsSessionRef);
 205                 } else if (sr.size() == 0) {
 206                         return null;
 207                 } else
 208                         throw new IllegalStateException(sr.size() + " CMS sessions registered for " + localId);
 209
 210         }
 211
 212         public static CmsSessionImpl getByUuid(Object uuid) {
 213                 Collection<ServiceReference<CmsSession>> sr;
 214                 try {
 215                         sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_UUID + "=" + uuid + ")");
 216                 } catch (InvalidSyntaxException e) {
 217                         throw new IllegalArgumentException("Cannot get CMS session for uuid " + uuid, e);
 218                 }
 219                 ServiceReference<CmsSession> cmsSessionRef;
 220                 if (sr.size() == 1) {
 221                         cmsSessionRef = sr.iterator().next();
 222                         return (CmsSessionImpl) bc.getService(cmsSessionRef);
 223                 } else if (sr.size() == 0) {
 224                         return null;
 225                 } else
 226                         throw new IllegalStateException(sr.size() + " CMS sessions registered for " + uuid);
 227
 228         }
 229
 230         public static void closeInvalidSessions() {
 231                 Collection<ServiceReference<CmsSession>> srs;
 232                 try {
 233                         srs = bc.getServiceReferences(CmsSession.class, null);
 234                         for (ServiceReference<CmsSession> sr : srs) {
 235                                 CmsSession cmsSession = bc.getService(sr);
 236                                 if (!cmsSession.isValid()) {
 237                                         ((CmsSessionImpl) cmsSession).close();
 238                                         if (log.isDebugEnabled())
 239                                                 log.debug("Closed expired CMS session " + cmsSession);
 240                                 }
 241                         }
 242                 } catch (InvalidSyntaxException e) {
 243                         throw new IllegalArgumentException("Cannot get CMS sessions", e);
 244                 }
 245         }
 246 }