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

   1 package org.argeo.cms.auth;
   2
   3 import java.security.Principal;
   4 import java.util.Collection;
   5 import java.util.Locale;
   6 import java.util.Set;
   7 import java.util.UUID;
   8
   9 import javax.naming.InvalidNameException;
  10 import javax.naming.ldap.LdapName;
  11 import javax.security.auth.Subject;
  12 import javax.security.auth.x500.X500Principal;
  13 import javax.servlet.http.HttpServletRequest;
  14 import javax.servlet.http.HttpSession;
  15
  16 //import org.apache.jackrabbit.core.security.AnonymousPrincipal;
  17 //import org.apache.jackrabbit.core.security.SecurityConstants;
  18 //import org.apache.jackrabbit.core.security.principal.AdminPrincipal;
  19 import org.argeo.cms.CmsException;
  20 import org.argeo.cms.internal.auth.CmsSessionImpl;
  21 import org.argeo.cms.internal.auth.ImpliedByPrincipal;
  22 import org.argeo.cms.internal.http.WebCmsSessionImpl;
  23 import org.argeo.cms.internal.kernel.Activator;
  24 import org.argeo.node.NodeConstants;
  25 import org.argeo.node.security.AnonymousPrincipal;
  26 import org.argeo.node.security.DataAdminPrincipal;
  27 import org.argeo.node.security.NodeSecurityUtils;
  28 import org.argeo.osgi.useradmin.AuthenticatingUser;
  29 import org.osgi.framework.BundleContext;
  30 import org.osgi.framework.InvalidSyntaxException;
  31 import org.osgi.framework.ServiceReference;
  32 import org.osgi.service.http.HttpContext;
  33 import org.osgi.service.useradmin.Authorization;
  34
  35 class CmsAuthUtils {
  36         // Standard
  37         final static String SHARED_STATE_NAME = AuthenticatingUser.SHARED_STATE_NAME;
  38         final static String SHARED_STATE_PWD = AuthenticatingUser.SHARED_STATE_PWD;
  39         final static String HEADER_AUTHORIZATION = "Authorization";
  40         final static String HEADER_WWW_AUTHENTICATE = "WWW-Authenticate";
  41
  42         // Argeo specific
  43         final static String SHARED_STATE_HTTP_REQUEST = "org.argeo.cms.auth.http.request";
  44         final static String SHARED_STATE_SPNEGO_TOKEN = "org.argeo.cms.auth.spnegoToken";
  45         final static String SHARED_STATE_SPNEGO_OUT_TOKEN = "org.argeo.cms.auth.spnegoOutToken";
  46         final static String SHARED_STATE_CERTIFICATE_CHAIN = "org.argeo.cms.auth.certificateChain";
  47         final static String SHARED_STATE_REMOTE_ADDR = "org.argeo.cms.auth.remote.addr";
  48         final static String SHARED_STATE_REMOTE_PORT = "org.argeo.cms.auth.remote.port";
  49
  50         static void addAuthorization(Subject subject, Authorization authorization) {
  51                 assert subject != null;
  52                 checkSubjectEmpty(subject);
  53                 assert authorization != null;
  54
  55                 // required for display name:
  56                 subject.getPrivateCredentials().add(authorization);
  57
  58                 if (Activator.isSingleUser()) {
  59                         subject.getPrincipals().add(new DataAdminPrincipal());
  60                 }
  61
  62                 Set<Principal> principals = subject.getPrincipals();
  63                 try {
  64                         String authName = authorization.getName();
  65
  66                         // determine user's principal
  67                         final LdapName name;
  68                         final Principal userPrincipal;
  69                         if (authName == null) {
  70                                 name = NodeSecurityUtils.ROLE_ANONYMOUS_NAME;
  71                                 userPrincipal = new AnonymousPrincipal();
  72                                 principals.add(userPrincipal);
  73                         } else {
  74                                 name = new LdapName(authName);
  75                                 NodeSecurityUtils.checkUserName(name);
  76                                 userPrincipal = new X500Principal(name.toString());
  77                                 principals.add(userPrincipal);
  78                                 // principals.add(new ImpliedByPrincipal(NodeSecurityUtils.ROLE_USER_NAME,
  79                                 // userPrincipal));
  80                         }
  81
  82                         // Add roles provided by authorization
  83                         for (String role : authorization.getRoles()) {
  84                                 LdapName roleName = new LdapName(role);
  85                                 if (roleName.equals(name)) {
  86                                         // skip
  87                                 } else if (roleName.equals(NodeSecurityUtils.ROLE_ANONYMOUS_NAME)) {
  88                                         // skip
  89                                 } else {
  90                                         NodeSecurityUtils.checkImpliedPrincipalName(roleName);
  91                                         principals.add(new ImpliedByPrincipal(roleName.toString(), userPrincipal));
  92                                         if (roleName.equals(NodeSecurityUtils.ROLE_ADMIN_NAME))
  93                                                 principals.add(new DataAdminPrincipal());
  94                                 }
  95                         }
  96
  97                 } catch (InvalidNameException e) {
  98                         throw new CmsException("Cannot commit", e);
  99                 }
 100
 101                 // registerSessionAuthorization(request, subject, authorization, locale);
 102         }
 103
 104         private static void checkSubjectEmpty(Subject subject) {
 105                 if (!subject.getPrincipals(AnonymousPrincipal.class).isEmpty())
 106                         throw new IllegalStateException("Already logged in as anonymous: " + subject);
 107                 if (!subject.getPrincipals(X500Principal.class).isEmpty())
 108                         throw new IllegalStateException("Already logged in as user: " + subject);
 109                 if (!subject.getPrincipals(DataAdminPrincipal.class).isEmpty())
 110                         throw new IllegalStateException("Already logged in as data admin: " + subject);
 111                 if (!subject.getPrincipals(ImpliedByPrincipal.class).isEmpty())
 112                         throw new IllegalStateException("Already authorized: " + subject);
 113         }
 114
 115         static void cleanUp(Subject subject) {
 116                 // Argeo
 117                 subject.getPrincipals().removeAll(subject.getPrincipals(X500Principal.class));
 118                 subject.getPrincipals().removeAll(subject.getPrincipals(ImpliedByPrincipal.class));
 119                 subject.getPrincipals().removeAll(subject.getPrincipals(AnonymousPrincipal.class));
 120                 subject.getPrincipals().removeAll(subject.getPrincipals(DataAdminPrincipal.class));
 121
 122                 subject.getPrivateCredentials().removeAll(subject.getPrivateCredentials(CmsSessionId.class));
 123                 subject.getPrivateCredentials().removeAll(subject.getPrivateCredentials(Authorization.class));
 124                 // Jackrabbit
 125                 // subject.getPrincipals().removeAll(subject.getPrincipals(AdminPrincipal.class));
 126                 // subject.getPrincipals().removeAll(subject.getPrincipals(AnonymousPrincipal.class));
 127         }
 128
 129         synchronized static void registerSessionAuthorization(HttpServletRequest request, Subject subject,
 130                         Authorization authorization, Locale locale) {
 131                 // synchronized in order to avoid multiple registrations
 132                 // TODO move it to a service in order to avoid static synchronization
 133                 if (request != null) {
 134                         HttpSession httpSession = request.getSession(false);
 135                         assert httpSession != null;
 136                         String httpSessId = httpSession.getId();
 137                         String remoteUser = authorization.getName() != null ? authorization.getName()
 138                                         : NodeConstants.ROLE_ANONYMOUS;
 139                         request.setAttribute(HttpContext.REMOTE_USER, remoteUser);
 140                         request.setAttribute(HttpContext.AUTHORIZATION, authorization);
 141
 142                         CmsSessionImpl cmsSession = CmsSessionImpl.getByLocalId(httpSessId);
 143                         if (cmsSession != null) {
 144                                 if (authorization.getName() != null) {
 145                                         if (cmsSession.getAuthorization().getName() == null) {
 146                                                 cmsSession.close();
 147                                                 cmsSession = null;
 148                                         } else if (!authorization.getName().equals(cmsSession.getAuthorization().getName())) {
 149                                                 throw new CmsException("Inconsistent user " + authorization.getName()
 150                                                                 + " for existing CMS session " + cmsSession);
 151                                         }
 152                                         // keyring
 153                                         if (cmsSession != null)
 154                                                 subject.getPrivateCredentials().addAll(cmsSession.getSecretKeys());
 155                                 } else {// anonymous
 156                                         if (cmsSession.getAuthorization().getName() != null) {
 157                                                 cmsSession.close();
 158                                                 // TODO rather throw an exception ? log a warning ?
 159                                                 cmsSession = null;
 160                                         }
 161                                 }
 162                         } else if (cmsSession == null) {
 163                                 cmsSession = new WebCmsSessionImpl(subject, authorization, locale, request);
 164                         }
 165                         // request.setAttribute(CmsSession.class.getName(), cmsSession);
 166                         if (cmsSession != null) {
 167                                 CmsSessionId nodeSessionId = new CmsSessionId(cmsSession.getUuid());
 168                                 if (subject.getPrivateCredentials(CmsSessionId.class).size() == 0)
 169                                         subject.getPrivateCredentials().add(nodeSessionId);
 170                                 else {
 171                                         UUID storedSessionId = subject.getPrivateCredentials(CmsSessionId.class).iterator().next()
 172                                                         .getUuid();
 173                                         // if (storedSessionId.equals(httpSessionId.getValue()))
 174                                         throw new CmsException(
 175                                                         "Subject already logged with session " + storedSessionId + " (not " + nodeSessionId + ")");
 176                                 }
 177                         }
 178                 } else {
 179                         // TODO desktop, CLI
 180                 }
 181         }
 182
 183         public static CmsSession cmsSessionFromHttpSession(BundleContext bc, String httpSessionId) {
 184                 Authorization authorization = null;
 185                 Collection<ServiceReference<CmsSession>> sr;
 186                 try {
 187                         sr = bc.getServiceReferences(CmsSession.class,
 188                                         "(" + CmsSession.SESSION_LOCAL_ID + "=" + httpSessionId + ")");
 189                 } catch (InvalidSyntaxException e) {
 190                         throw new CmsException("Cannot get CMS session for id " + httpSessionId, e);
 191                 }
 192                 CmsSession cmsSession;
 193                 if (sr.size() == 1) {
 194                         cmsSession = bc.getService(sr.iterator().next());
 195 //                      locale = cmsSession.getLocale();
 196                         authorization = cmsSession.getAuthorization();
 197                         if (authorization.getName() == null)
 198                                 return null;// anonymous is not sufficient
 199                 } else if (sr.size() == 0)
 200                         return null;
 201                 else
 202                         throw new CmsException(sr.size() + ">1 web sessions detected for http session " + httpSessionId);
 203                 return cmsSession;
 204         }
 205
 206         public static <T extends Principal> T getSinglePrincipal(Subject subject, Class<T> clss) {
 207                 Set<T> principals = subject.getPrincipals(clss);
 208                 if (principals.isEmpty())
 209                         return null;
 210                 if (principals.size() > 1)
 211                         throw new IllegalStateException("Only one " + clss + " principal expected in " + subject);
 212                 return principals.iterator().next();
 213         }
 214
 215         private CmsAuthUtils() {
 216
 217         }
 218
 219 }