org.argeo.cms/src/org/argeo/cms/auth/CmsAuthUtils.java

   1 package org.argeo.cms.auth;
   2
   3 import static org.argeo.api.cms.CmsConstants.ROLE_ADMIN;
   4 import static org.argeo.api.cms.CmsConstants.ROLE_ANONYMOUS;
   5 import static org.argeo.api.cms.CmsConstants.ROLE_USER;
   6 import static org.argeo.api.cms.CmsConstants.ROLE_USER_ADMIN;
   7
   8 import java.security.Principal;
   9 import java.util.Arrays;
  10 import java.util.Collections;
  11 import java.util.List;
  12 import java.util.Locale;
  13 import java.util.Set;
  14 import java.util.UUID;
  15
  16 //import javax.naming.InvalidNameException;
  17 //import javax.naming.ldap.LdapName;
  18 import javax.security.auth.Subject;
  19 import javax.security.auth.x500.X500Principal;
  20
  21 import org.argeo.api.cms.AnonymousPrincipal;
  22 import org.argeo.api.cms.CmsConstants;
  23 import org.argeo.api.cms.CmsSessionId;
  24 import org.argeo.api.cms.DataAdminPrincipal;
  25 import org.argeo.cms.internal.auth.CmsSessionImpl;
  26 import org.argeo.cms.internal.auth.ImpliedByPrincipal;
  27 import org.argeo.cms.internal.http.WebCmsSessionImpl;
  28 import org.argeo.cms.internal.runtime.CmsContextImpl;
  29 import org.argeo.osgi.useradmin.AuthenticatingUser;
  30 import org.osgi.service.http.HttpContext;
  31 import org.osgi.service.useradmin.Authorization;
  32
  33 /** Centralises security related registrations. */
  34 class CmsAuthUtils {
  35         // Standard
  36         final static String SHARED_STATE_NAME = AuthenticatingUser.SHARED_STATE_NAME;
  37         final static String SHARED_STATE_PWD = AuthenticatingUser.SHARED_STATE_PWD;
  38         final static String HEADER_AUTHORIZATION = "Authorization";
  39         final static String HEADER_WWW_AUTHENTICATE = "WWW-Authenticate";
  40
  41         // Argeo specific
  42         final static String SHARED_STATE_HTTP_REQUEST = "org.argeo.cms.auth.http.request";
  43         final static String SHARED_STATE_SPNEGO_TOKEN = "org.argeo.cms.auth.spnegoToken";
  44         final static String SHARED_STATE_SPNEGO_OUT_TOKEN = "org.argeo.cms.auth.spnegoOutToken";
  45         final static String SHARED_STATE_CERTIFICATE_CHAIN = "org.argeo.cms.auth.certificateChain";
  46         final static String SHARED_STATE_REMOTE_ADDR = "org.argeo.cms.auth.remote.addr";
  47         final static String SHARED_STATE_REMOTE_PORT = "org.argeo.cms.auth.remote.port";
  48
  49         final static String SINGLE_USER_LOCAL_ID = "single-user";
  50
  51         private final static List<String> RESERVED_ROLES = Collections
  52                         .unmodifiableList(Arrays.asList(new String[] { ROLE_ADMIN, ROLE_ANONYMOUS, ROLE_USER, ROLE_USER_ADMIN }));
  53
  54         static void addAuthorization(Subject subject, Authorization authorization) {
  55                 assert subject != null;
  56                 checkSubjectEmpty(subject);
  57                 assert authorization != null;
  58
  59                 // required for display name:
  60                 subject.getPrivateCredentials().add(authorization);
  61
  62                 boolean singleUser = authorization instanceof SingleUserAuthorization;
  63
  64                 Set<Principal> principals = subject.getPrincipals();
  65 //              try {
  66                 String authName = authorization.getName();
  67
  68                 // determine user's principal
  69 //                      final LdapName name;
  70                 final Principal userPrincipal;
  71                 if (authName == null) {
  72 //                              name = NodeSecurityUtils.ROLE_ANONYMOUS_NAME;
  73                         userPrincipal = new AnonymousPrincipal();
  74                         principals.add(userPrincipal);
  75                 } else {
  76 //                              name = new LdapName(authName);
  77                         checkUserName(authName);
  78                         userPrincipal = new X500Principal(authName.toString());
  79                         principals.add(userPrincipal);
  80
  81                         if (singleUser) {
  82                                 principals.add(new ImpliedByPrincipal(CmsConstants.ROLE_ADMIN, userPrincipal));
  83                                 principals.add(new DataAdminPrincipal());
  84                         }
  85                 }
  86
  87                 // Add roles provided by authorization
  88                 for (String role : authorization.getRoles()) {
  89 //                              LdapName roleName = new LdapName(role);
  90                         if (role.equals(authName)) {
  91                                 // skip
  92                         } else if (role.equals(CmsConstants.ROLE_ANONYMOUS)) {
  93                                 // skip
  94                         } else {
  95 //                                      NodeSecurityUtils.checkImpliedPrincipalName(role);
  96                                 principals.add(new ImpliedByPrincipal(role, userPrincipal));
  97                                 if (role.equals(CmsConstants.ROLE_ADMIN))
  98                                         principals.add(new DataAdminPrincipal());
  99                         }
 100                 }
 101
 102 //              } catch (InvalidNameException e) {
 103 //                      throw new IllegalArgumentException("Cannot commit", e);
 104 //              }
 105         }
 106
 107         private static void checkSubjectEmpty(Subject subject) {
 108                 if (!subject.getPrincipals(AnonymousPrincipal.class).isEmpty())
 109                         throw new IllegalStateException("Already logged in as anonymous: " + subject);
 110                 if (!subject.getPrincipals(X500Principal.class).isEmpty())
 111                         throw new IllegalStateException("Already logged in as user: " + subject);
 112                 if (!subject.getPrincipals(DataAdminPrincipal.class).isEmpty())
 113                         throw new IllegalStateException("Already logged in as data admin: " + subject);
 114                 if (!subject.getPrincipals(ImpliedByPrincipal.class).isEmpty())
 115                         throw new IllegalStateException("Already authorized: " + subject);
 116         }
 117
 118         static void cleanUp(Subject subject) {
 119                 // Argeo
 120                 subject.getPrincipals().removeAll(subject.getPrincipals(X500Principal.class));
 121                 subject.getPrincipals().removeAll(subject.getPrincipals(ImpliedByPrincipal.class));
 122                 subject.getPrincipals().removeAll(subject.getPrincipals(AnonymousPrincipal.class));
 123                 subject.getPrincipals().removeAll(subject.getPrincipals(DataAdminPrincipal.class));
 124
 125                 subject.getPrivateCredentials().removeAll(subject.getPrivateCredentials(CmsSessionId.class));
 126                 subject.getPrivateCredentials().removeAll(subject.getPrivateCredentials(Authorization.class));
 127                 // Jackrabbit
 128                 // subject.getPrincipals().removeAll(subject.getPrincipals(AdminPrincipal.class));
 129                 // subject.getPrincipals().removeAll(subject.getPrincipals(AnonymousPrincipal.class));
 130         }
 131
 132         @SuppressWarnings("unused")
 133         synchronized static void registerSessionAuthorization(RemoteAuthRequest request, Subject subject,
 134                         Authorization authorization, Locale locale) {
 135                 // synchronized in order to avoid multiple registrations
 136                 // TODO move it to a service in order to avoid static synchronization
 137                 if (request != null) {
 138                         RemoteAuthSession httpSession = request.getSession();
 139                         assert httpSession != null;
 140                         String httpSessId = httpSession.getId();
 141                         boolean anonymous = authorization.getName() == null;
 142                         String remoteUser = !anonymous ? authorization.getName() : CmsConstants.ROLE_ANONYMOUS;
 143                         request.setAttribute(HttpContext.REMOTE_USER, remoteUser);
 144                         request.setAttribute(HttpContext.AUTHORIZATION, authorization);
 145
 146                         CmsSessionImpl cmsSession;
 147                         CmsSessionImpl currentLocalSession = CmsContextImpl.getCmsContext().getCmsSessionByLocalId(httpSessId);
 148                         if (currentLocalSession != null) {
 149                                 boolean currentLocalSessionAnonymous = currentLocalSession.getAuthorization().getName() == null;
 150                                 if (!anonymous) {
 151                                         if (currentLocalSessionAnonymous) {
 152                                                 currentLocalSession.close();
 153                                                 // new CMS session
 154                                                 UUID cmsSessionUuid = CmsContextImpl.getCmsContext().getUuidFactory().timeUUID();
 155                                                 cmsSession = new WebCmsSessionImpl(cmsSessionUuid, subject, authorization, locale, request);
 156                                                 CmsContextImpl.getCmsContext().registerCmsSession(cmsSession);
 157                                         } else if (!authorization.getName().equals(currentLocalSession.getAuthorization().getName())) {
 158                                                 throw new IllegalStateException("Inconsistent user " + authorization.getName()
 159                                                                 + " for existing CMS session " + currentLocalSession);
 160                                         } else {
 161                                                 // keep current session
 162                                                 cmsSession = currentLocalSession;
 163                                                 // keyring
 164                                                 subject.getPrivateCredentials().addAll(cmsSession.getSecretKeys());
 165                                         }
 166                                 } else {// anonymous
 167                                         if (!currentLocalSessionAnonymous) {
 168                                                 currentLocalSession.close();
 169                                                 throw new IllegalStateException(
 170                                                                 "Existing CMS session " + currentLocalSession + " was not logged out properly.");
 171                                         }
 172                                         // keep current session
 173                                         cmsSession = currentLocalSession;
 174                                 }
 175                         } else {
 176                                 // new CMS session
 177                                 UUID cmsSessionUuid = CmsContextImpl.getCmsContext().getUuidFactory().timeUUID();
 178                                 cmsSession = new WebCmsSessionImpl(cmsSessionUuid, subject, authorization, locale, request);
 179                                 CmsContextImpl.getCmsContext().registerCmsSession(cmsSession);
 180                         }
 181
 182                         if (cmsSession == null)// should be dead code (cf. SuppressWarning of the method)
 183                                 throw new IllegalStateException("CMS session cannot be null");
 184
 185                         CmsSessionId nodeSessionId = new CmsSessionId(cmsSession.getUuid());
 186                         if (subject.getPrivateCredentials(CmsSessionId.class).size() == 0) {
 187                                 subject.getPrivateCredentials().add(nodeSessionId);
 188                         } else {
 189                                 UUID storedSessionId = subject.getPrivateCredentials(CmsSessionId.class).iterator().next().getUuid();
 190                                 // if (storedSessionId.equals(httpSessionId.getValue()))
 191                                 throw new IllegalStateException(
 192                                                 "Subject already logged with session " + storedSessionId + " (not " + nodeSessionId + ")");
 193                         }
 194                 } else {
 195                         CmsSessionImpl cmsSession = CmsContextImpl.getCmsContext().getCmsSessionByLocalId(SINGLE_USER_LOCAL_ID);
 196                         if (cmsSession == null) {
 197                                 UUID cmsSessionUuid = CmsContextImpl.getCmsContext().getUuidFactory().timeUUID();
 198                                 cmsSession = new CmsSessionImpl(cmsSessionUuid, subject, authorization, locale, SINGLE_USER_LOCAL_ID);
 199                                 CmsContextImpl.getCmsContext().registerCmsSession(cmsSession);
 200                         }
 201                         CmsSessionId nodeSessionId = new CmsSessionId(cmsSession.getUuid());
 202                         subject.getPrivateCredentials().add(nodeSessionId);
 203                 }
 204         }
 205
 206 //      public static CmsSessionImpl cmsSessionFromHttpSession(BundleContext bc, String httpSessionId) {
 207 //              Authorization authorization = null;
 208 //              Collection<ServiceReference<CmsSession>> sr;
 209 //              try {
 210 //                      sr = bc.getServiceReferences(CmsSession.class,
 211 //                                      "(" + CmsSession.SESSION_LOCAL_ID + "=" + httpSessionId + ")");
 212 //              } catch (InvalidSyntaxException e) {
 213 //                      throw new IllegalArgumentException("Cannot get CMS session for id " + httpSessionId, e);
 214 //              }
 215 //              CmsSessionImpl cmsSession;
 216 //              if (sr.size() == 1) {
 217 //                      cmsSession = (CmsSessionImpl) bc.getService(sr.iterator().next());
 218 ////                    locale = cmsSession.getLocale();
 219 //                      authorization = cmsSession.getAuthorization();
 220 //                      if (authorization.getName() == null)
 221 //                              return null;// anonymous is not sufficient
 222 //              } else if (sr.size() == 0)
 223 //                      return null;
 224 //              else
 225 //                      throw new IllegalStateException(sr.size() + ">1 web sessions detected for http session " + httpSessionId);
 226 //              return cmsSession;
 227 //      }
 228
 229         public static <T extends Principal> T getSinglePrincipal(Subject subject, Class<T> clss) {
 230                 Set<T> principals = subject.getPrincipals(clss);
 231                 if (principals.isEmpty())
 232                         return null;
 233                 if (principals.size() > 1)
 234                         throw new IllegalStateException("Only one " + clss + " principal expected in " + subject);
 235                 return principals.iterator().next();
 236         }
 237
 238         private static void checkUserName(String name) throws IllegalArgumentException {
 239                 if (RESERVED_ROLES.contains(name))
 240                         throw new IllegalArgumentException(name + " is a reserved name");
 241         }
 242
 243         private CmsAuthUtils() {
 244
 245         }
 246
 247 }