CmsAuthUtils.java

   1 package org.argeo.cms.auth;
   2
   3 import java.security.Principal;
   4 import java.util.Collection;
   5 import java.util.Set;
   6
   7 import javax.naming.InvalidNameException;
   8 import javax.naming.ldap.LdapName;
   9 import javax.security.auth.Subject;
  10 import javax.security.auth.x500.X500Principal;
  11 import javax.servlet.http.HttpServletRequest;
  12 import javax.servlet.http.HttpSession;
  13
  14 import org.apache.commons.logging.Log;
  15 import org.apache.commons.logging.LogFactory;
  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.ImpliedByPrincipal;
  21 import org.argeo.cms.internal.kernel.WebCmsSessionImpl;
  22 import org.argeo.node.security.AnonymousPrincipal;
  23 import org.argeo.node.security.DataAdminPrincipal;
  24 import org.argeo.node.security.NodeSecurityUtils;
  25 import org.osgi.framework.BundleContext;
  26 import org.osgi.framework.InvalidSyntaxException;
  27 import org.osgi.framework.ServiceReference;
  28 import org.osgi.service.http.HttpContext;
  29 import org.osgi.service.useradmin.Authorization;
  30
  31 class CmsAuthUtils {
  32         private final static Log log = LogFactory.getLog(CmsAuthUtils.class);
  33
  34         /** Shared HTTP request */
  35         static final String SHARED_STATE_HTTP_REQUEST = "org.argeo.cms.auth.http.request";
  36         /** From org.osgi.service.http.HttpContext */
  37         static final String SHARED_STATE_AUTHORIZATION = "org.osgi.service.useradmin.authorization";
  38         /** From com.sun.security.auth.module.*LoginModule */
  39         static final String SHARED_STATE_NAME = "javax.security.auth.login.name";
  40         /** From com.sun.security.auth.module.*LoginModule */
  41         static final String SHARED_STATE_PWD = "javax.security.auth.login.password";
  42
  43         static void addAuthentication(Subject subject, Authorization authorization) {
  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
  89         private static void checkSubjectEmpty(Subject subject) {
  90                 if (!subject.getPrincipals(AnonymousPrincipal.class).isEmpty())
  91                         throw new IllegalStateException("Already logged in as anonymous: " + subject);
  92                 if (!subject.getPrincipals(X500Principal.class).isEmpty())
  93                         throw new IllegalStateException("Already logged in as user: " + subject);
  94                 if (!subject.getPrincipals(DataAdminPrincipal.class).isEmpty())
  95                         throw new IllegalStateException("Already logged in as data admin: " + subject);
  96                 if (!subject.getPrincipals(ImpliedByPrincipal.class).isEmpty())
  97                         throw new IllegalStateException("Already authorized: " + subject);
  98         }
  99
 100         static void cleanUp(Subject subject) {
 101                 // Argeo
 102                 subject.getPrincipals().removeAll(subject.getPrincipals(X500Principal.class));
 103                 subject.getPrincipals().removeAll(subject.getPrincipals(ImpliedByPrincipal.class));
 104                 // Jackrabbit
 105                 // subject.getPrincipals().removeAll(subject.getPrincipals(AdminPrincipal.class));
 106                 // subject.getPrincipals().removeAll(subject.getPrincipals(AnonymousPrincipal.class));
 107         }
 108
 109         // SHARED STATE KEYS
 110         // compatible with com.sun.security.auth.module.*LoginModule
 111         // public static final String SHARED_STATE_USERNAME =
 112         // "javax.security.auth.login.name";
 113         // public static final String SHARED_STATE_PASSWORD =
 114         // "javax.security.auth.login.password";
 115
 116         static void registerSessionAuthorization(BundleContext bc, HttpServletRequest request, Subject subject,
 117                         Authorization authorization) {
 118                 String httpSessId = request.getSession().getId();
 119                 if (authorization.getName() != null) {
 120                         request.setAttribute(HttpContext.REMOTE_USER, authorization.getName());
 121                         request.setAttribute(HttpContext.AUTHORIZATION, authorization);
 122
 123                         HttpSession httpSession = request.getSession();
 124                         if (httpSession.getAttribute(HttpContext.AUTHORIZATION) == null) {
 125
 126                                 Collection<ServiceReference<WebCmsSession>> sr;
 127                                 try {
 128                                         sr = bc.getServiceReferences(WebCmsSession.class,
 129                                                         "(" + WebCmsSession.CMS_SESSION_ID + "=" + httpSessId + ")");
 130                                 } catch (InvalidSyntaxException e) {
 131                                         throw new CmsException("Cannot get CMS session for id " + httpSessId, e);
 132                                 }
 133                                 ServiceReference<WebCmsSession> cmsSessionRef;
 134                                 if (sr.size() == 1) {
 135                                         cmsSessionRef = sr.iterator().next();
 136                                 } else if (sr.size() == 0) {
 137                                         WebCmsSessionImpl cmsSessionImpl = new WebCmsSessionImpl(httpSessId, authorization);
 138                                         cmsSessionRef = cmsSessionImpl.getServiceRegistration().getReference();
 139                                         if (log.isDebugEnabled())
 140                                                 log.debug("Initialized " + cmsSessionImpl + " for " + authorization.getName());
 141                                 } else
 142                                         throw new CmsException(sr.size() + " CMS sessions registered for " + httpSessId);
 143
 144                                 WebCmsSessionImpl cmsSession = (WebCmsSessionImpl) bc.getService(cmsSessionRef);
 145                                 cmsSession.addHttpSession(request);
 146                                 if (log.isTraceEnabled())
 147                                         log.trace("Added " + request.getServletPath() + " to " + cmsSession + " (" + request.getRequestURI()
 148                                                         + ")");
 149                                 // httpSession.setAttribute(HttpContext.REMOTE_USER,
 150                                 // authorization.getName());
 151                                 // httpSession.setAttribute(HttpContext.AUTHORIZATION,
 152                                 // authorization);
 153                         }
 154                 }
 155                 HttpSessionId httpSessionId = new HttpSessionId(httpSessId);
 156                 if (subject.getPrivateCredentials(HttpSessionId.class).size() == 0)
 157                         subject.getPrivateCredentials().add(httpSessionId);
 158                 else {
 159                         String storedSessionId = subject.getPrivateCredentials(HttpSessionId.class).iterator().next().getValue();
 160                         // if (storedSessionId.equals(httpSessionId.getValue()))
 161                         throw new CmsException(
 162                                         "Subject already logged with session " + storedSessionId + " (not " + httpSessionId + ")");
 163                 }
 164         }
 165
 166         static boolean logoutSession(BundleContext bc, Subject subject) {
 167                 String httpSessionId;
 168                 if (subject.getPrivateCredentials(HttpSessionId.class).size() == 1)
 169                         httpSessionId = subject.getPrivateCredentials(HttpSessionId.class).iterator().next().getValue();
 170                 else
 171                         return false;
 172                 Collection<ServiceReference<WebCmsSession>> srs;
 173                 try {
 174                         srs = bc.getServiceReferences(WebCmsSession.class,
 175                                         "(" + WebCmsSession.CMS_SESSION_ID + "=" + httpSessionId + ")");
 176                 } catch (InvalidSyntaxException e) {
 177                         throw new CmsException("Cannot retrieve CMS session #" + httpSessionId, e);
 178                 }
 179
 180                 if (srs.size() == 0) {
 181                         if (log.isTraceEnabled())
 182                                 log.warn("No CMS web session found for http session " + httpSessionId);
 183                         return false;
 184                 } else if (srs.size() > 1)
 185                         throw new CmsException(srs.size() + " CMS web sessions found for http session " + httpSessionId);
 186
 187                 WebCmsSessionImpl cmsSession = (WebCmsSessionImpl) bc.getService(srs.iterator().next());
 188                 cmsSession.cleanUp();
 189                 subject.getPrivateCredentials().removeAll(subject.getPrivateCredentials(HttpSessionId.class));
 190                 if (log.isDebugEnabled())
 191                         log.debug("Cleaned up " + cmsSession);
 192                 return true;
 193         }
 194
 195         private CmsAuthUtils() {
 196
 197         }
 198
 199 }