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