CmsAuthUtils.java

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