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