--- /dev/null
+package org.argeo.cms.internal.osgi;
+
+import java.io.IOException;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Dictionary;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+
+import javax.naming.ldap.LdapName;
+import javax.security.auth.Subject;
+import javax.security.auth.callback.Callback;
+import javax.security.auth.callback.CallbackHandler;
+import javax.security.auth.callback.NameCallback;
+import javax.security.auth.callback.UnsupportedCallbackException;
+import javax.security.auth.kerberos.KerberosPrincipal;
+import javax.security.auth.login.LoginContext;
+import javax.security.auth.login.LoginException;
+
+import org.apache.commons.httpclient.auth.AuthPolicy;
+import org.apache.commons.httpclient.auth.CredentialsProvider;
+import org.apache.commons.httpclient.params.DefaultHttpParams;
+import org.apache.commons.httpclient.params.HttpMethodParams;
+import org.apache.commons.httpclient.params.HttpParams;
+import org.argeo.api.cms.CmsAuth;
+import org.argeo.api.cms.CmsConstants;
+import org.argeo.api.cms.CmsLog;
+import org.argeo.cms.internal.http.client.HttpCredentialProvider;
+import org.argeo.cms.internal.http.client.SpnegoAuthScheme;
+import org.argeo.cms.internal.runtime.KernelConstants;
+import org.argeo.cms.internal.runtime.KernelUtils;
+import org.argeo.osgi.transaction.WorkControl;
+import org.argeo.osgi.transaction.WorkTransaction;
+import org.argeo.osgi.useradmin.AbstractUserDirectory;
+import org.argeo.osgi.useradmin.AggregatingUserAdmin;
+import org.argeo.osgi.useradmin.LdapUserAdmin;
+import org.argeo.osgi.useradmin.LdifUserAdmin;
+import org.argeo.osgi.useradmin.OsUserDirectory;
+import org.argeo.osgi.useradmin.UserAdminConf;
+import org.argeo.osgi.useradmin.UserDirectory;
+import org.argeo.util.naming.DnsBrowser;
+import org.ietf.jgss.GSSCredential;
+import org.ietf.jgss.GSSException;
+import org.ietf.jgss.GSSManager;
+import org.ietf.jgss.GSSName;
+import org.ietf.jgss.Oid;
+import org.osgi.framework.Constants;
+import org.osgi.service.cm.ConfigurationException;
+import org.osgi.service.cm.ManagedServiceFactory;
+import org.osgi.service.useradmin.Authorization;
+import org.osgi.service.useradmin.Group;
+import org.osgi.service.useradmin.Role;
+import org.osgi.service.useradmin.UserAdmin;
+
+/**
+ * Aggregates multiple {@link UserDirectory} and integrates them with system
+ * roles.
+ */
+public class NodeUserAdmin extends AggregatingUserAdmin implements ManagedServiceFactory, KernelConstants {
+ private final static CmsLog log = CmsLog.getLog(NodeUserAdmin.class);
+
+ // OSGi
+ private Map<String, LdapName> pidToBaseDn = new HashMap<>();
+// private Map<String, ServiceRegistration<UserDirectory>> pidToServiceRegs = new HashMap<>();
+// private ServiceRegistration<UserAdmin> userAdminReg;
+
+ // JTA
+// private final ServiceTracker<WorkControl, WorkControl> tmTracker;
+ // private final String cacheName = UserDirectory.class.getName();
+
+ // GSS API
+ private Path nodeKeyTab = KernelUtils.getOsgiInstancePath(KernelConstants.NODE_KEY_TAB_PATH);
+ private GSSCredential acceptorCredentials;
+
+ private boolean singleUser = false;
+// private boolean systemRolesAvailable = false;
+
+// CmsUserManagerImpl userManager;
+ private WorkControl transactionManager;
+ private WorkTransaction userTransaction;
+
+ public NodeUserAdmin() {
+ super(CmsConstants.ROLES_BASEDN, CmsConstants.TOKENS_BASEDN);
+// BundleContext bc = Activator.getBundleContext();
+// if (bc != null) {
+// tmTracker = new ServiceTracker<>(bc, WorkControl.class, null) {
+//
+// @Override
+// public WorkControl addingService(ServiceReference<WorkControl> reference) {
+// WorkControl workControl = super.addingService(reference);
+// userManager = new CmsUserManagerImpl();
+// userManager.setUserAdmin(NodeUserAdmin.this);
+// // FIXME make it more robust
+// userManager.setUserTransaction((WorkTransaction) workControl);
+// bc.registerService(CmsUserManager.class, userManager, null);
+// return workControl;
+// }
+// };
+// tmTracker.open();
+// } else {
+// tmTracker = null;
+// }
+ }
+
+ public void init() {
+ }
+
+ public void destroy() {
+ }
+
+ @Override
+ public void updated(String pid, Dictionary<String, ?> properties) throws ConfigurationException {
+ String uri = (String) properties.get(UserAdminConf.uri.name());
+ Object realm = properties.get(UserAdminConf.realm.name());
+ URI u;
+ try {
+ if (uri == null) {
+ String baseDn = (String) properties.get(UserAdminConf.baseDn.name());
+ u = KernelUtils.getOsgiInstanceUri(KernelConstants.DIR_NODE + '/' + baseDn + ".ldif");
+ } else if (realm != null) {
+ u = null;
+ } else {
+ u = new URI(uri);
+ }
+ } catch (URISyntaxException e) {
+ throw new IllegalArgumentException("Badly formatted URI " + uri, e);
+ }
+
+ // Create
+ AbstractUserDirectory userDirectory;
+ if (realm != null || UserAdminConf.SCHEME_LDAP.equals(u.getScheme())
+ || UserAdminConf.SCHEME_LDAPS.equals(u.getScheme())) {
+ userDirectory = new LdapUserAdmin(properties);
+ } else if (UserAdminConf.SCHEME_FILE.equals(u.getScheme())) {
+ userDirectory = new LdifUserAdmin(u, properties);
+ } else if (UserAdminConf.SCHEME_OS.equals(u.getScheme())) {
+ userDirectory = new OsUserDirectory(u, properties);
+ singleUser = true;
+ } else {
+ throw new IllegalArgumentException("Unsupported scheme " + u.getScheme());
+ }
+ addUserDirectory(userDirectory);
+
+ // OSGi
+ LdapName baseDn = userDirectory.getBaseDn();
+ Hashtable<String, Object> regProps = new Hashtable<>();
+ regProps.put(Constants.SERVICE_PID, pid);
+ if (isSystemRolesBaseDn(baseDn))
+ regProps.put(Constants.SERVICE_RANKING, Integer.MAX_VALUE);
+ regProps.put(UserAdminConf.baseDn.name(), baseDn);
+ // ServiceRegistration<UserDirectory> reg =
+ // bc.registerService(UserDirectory.class, userDirectory, regProps);
+ CmsActivator.getBundleContext().registerService(UserDirectory.class, userDirectory, regProps);
+// userManager.addUserDirectory(userDirectory, regProps);
+ pidToBaseDn.put(pid, baseDn);
+ // pidToServiceRegs.put(pid, reg);
+
+ if (log.isDebugEnabled()) {
+ log.debug("User directory " + userDirectory.getBaseDn() + (u != null ? " [" + u.getScheme() + "]" : "")
+ + " enabled." + (realm != null ? " " + realm + " realm." : ""));
+ }
+
+ if (isSystemRolesBaseDn(baseDn)) {
+ addStandardSystemRoles();
+
+ // publishes itself as user admin only when system roles are available
+ Dictionary<String, Object> userAdminregProps = new Hashtable<>();
+ userAdminregProps.put(CmsConstants.CN, CmsConstants.DEFAULT);
+ userAdminregProps.put(Constants.SERVICE_RANKING, Integer.MAX_VALUE);
+ CmsActivator.getBundleContext().registerService(UserAdmin.class, this, userAdminregProps);
+ }
+
+// if (isSystemRolesBaseDn(baseDn))
+// systemRolesAvailable = true;
+//
+// // start publishing only when system roles are available
+// if (systemRolesAvailable) {
+// // The list of baseDns is published as properties
+// // TODO clients should rather reference USerDirectory services
+// if (userAdminReg != null)
+// userAdminReg.unregister();
+// // register self as main user admin
+// Dictionary<String, Object> userAdminregProps = currentState();
+// userAdminregProps.put(NodeConstants.CN, NodeConstants.DEFAULT);
+// userAdminregProps.put(Constants.SERVICE_RANKING, Integer.MAX_VALUE);
+// userAdminReg = bc.registerService(UserAdmin.class, this, userAdminregProps);
+// }
+ }
+
+ private void addStandardSystemRoles() {
+ // we assume UserTransaction is already available (TODO make it more robust)
+ try {
+ userTransaction.begin();
+ Role adminRole = getRole(CmsConstants.ROLE_ADMIN);
+ if (adminRole == null) {
+ adminRole = createRole(CmsConstants.ROLE_ADMIN, Role.GROUP);
+ }
+ if (getRole(CmsConstants.ROLE_USER_ADMIN) == null) {
+ Group userAdminRole = (Group) createRole(CmsConstants.ROLE_USER_ADMIN, Role.GROUP);
+ userAdminRole.addMember(adminRole);
+ }
+ userTransaction.commit();
+ } catch (Exception e) {
+ try {
+ userTransaction.rollback();
+ } catch (Exception e1) {
+ // silent
+ }
+ throw new IllegalStateException("Cannot add standard system roles", e);
+ }
+ }
+
+ @Override
+ public void deleted(String pid) {
+ // assert pidToServiceRegs.get(pid) != null;
+ assert pidToBaseDn.get(pid) != null;
+ // pidToServiceRegs.remove(pid).unregister();
+ LdapName baseDn = pidToBaseDn.remove(pid);
+ removeUserDirectory(baseDn);
+ }
+
+ @Override
+ public String getName() {
+ return "Node User Admin";
+ }
+
+ @Override
+ protected void addAbstractSystemRoles(Authorization rawAuthorization, Set<String> sysRoles) {
+ if (rawAuthorization.getName() == null) {
+ sysRoles.add(CmsConstants.ROLE_ANONYMOUS);
+ } else {
+ sysRoles.add(CmsConstants.ROLE_USER);
+ }
+ }
+
+ protected void postAdd(AbstractUserDirectory userDirectory) {
+ // JTA
+// WorkControl tm = tmTracker != null ? tmTracker.getService() : null;
+// if (tm == null)
+// throw new IllegalStateException("A JTA transaction manager must be available.");
+ userDirectory.setTransactionControl(transactionManager);
+// if (tmTracker.getService() instanceof BitronixTransactionManager)
+// EhCacheXAResourceProducer.registerXAResource(cacheName, userDirectory.getXaResource());
+
+ Object realm = userDirectory.getProperties().get(UserAdminConf.realm.name());
+ if (realm != null) {
+ if (Files.exists(nodeKeyTab)) {
+ String servicePrincipal = getKerberosServicePrincipal(realm.toString());
+ if (servicePrincipal != null) {
+ CallbackHandler callbackHandler = new CallbackHandler() {
+ @Override
+ public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
+ for (Callback callback : callbacks)
+ if (callback instanceof NameCallback)
+ ((NameCallback) callback).setName(servicePrincipal);
+
+ }
+ };
+ try {
+ LoginContext nodeLc = new LoginContext(CmsAuth.LOGIN_CONTEXT_NODE, callbackHandler);
+ nodeLc.login();
+ acceptorCredentials = logInAsAcceptor(nodeLc.getSubject(), servicePrincipal);
+ } catch (LoginException e) {
+ throw new IllegalStateException("Cannot log in kernel", e);
+ }
+ }
+ }
+
+ // Register client-side SPNEGO auth scheme
+ AuthPolicy.registerAuthScheme(SpnegoAuthScheme.NAME, SpnegoAuthScheme.class);
+ HttpParams params = DefaultHttpParams.getDefaultParams();
+ ArrayList<String> schemes = new ArrayList<>();
+ schemes.add(SpnegoAuthScheme.NAME);// SPNEGO preferred
+ // schemes.add(AuthPolicy.BASIC);// incompatible with Basic
+ params.setParameter(AuthPolicy.AUTH_SCHEME_PRIORITY, schemes);
+ params.setParameter(CredentialsProvider.PROVIDER, new HttpCredentialProvider());
+ params.setParameter(HttpMethodParams.COOKIE_POLICY, KernelConstants.COOKIE_POLICY_BROWSER_COMPATIBILITY);
+ // params.setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
+ }
+ }
+
+ protected void preDestroy(AbstractUserDirectory userDirectory) {
+// if (tmTracker.getService() instanceof BitronixTransactionManager)
+// EhCacheXAResourceProducer.unregisterXAResource(cacheName, userDirectory.getXaResource());
+
+ Object realm = userDirectory.getProperties().get(UserAdminConf.realm.name());
+ if (realm != null) {
+ if (acceptorCredentials != null) {
+ try {
+ acceptorCredentials.dispose();
+ } catch (GSSException e) {
+ // silent
+ }
+ acceptorCredentials = null;
+ }
+ }
+ }
+
+ private String getKerberosServicePrincipal(String realm) {
+ String hostname;
+ try (DnsBrowser dnsBrowser = new DnsBrowser()) {
+ InetAddress localhost = InetAddress.getLocalHost();
+ hostname = localhost.getHostName();
+ String dnsZone = hostname.substring(hostname.indexOf('.') + 1);
+ String ipfromDns = dnsBrowser.getRecord(hostname, localhost instanceof Inet6Address ? "AAAA" : "A");
+ boolean consistentIp = localhost.getHostAddress().equals(ipfromDns);
+ String kerberosDomain = dnsBrowser.getRecord("_kerberos." + dnsZone, "TXT");
+ if (consistentIp && kerberosDomain != null && kerberosDomain.equals(realm) && Files.exists(nodeKeyTab)) {
+ return KernelConstants.DEFAULT_KERBEROS_SERVICE + "/" + hostname + "@" + kerberosDomain;
+ } else
+ return null;
+ } catch (Exception e) {
+ log.warn("Exception when determining kerberos principal", e);
+ return null;
+ }
+ }
+
+ private GSSCredential logInAsAcceptor(Subject subject, String servicePrincipal) {
+ // GSS
+ Iterator<KerberosPrincipal> krb5It = subject.getPrincipals(KerberosPrincipal.class).iterator();
+ if (!krb5It.hasNext())
+ return null;
+ KerberosPrincipal krb5Principal = null;
+ while (krb5It.hasNext()) {
+ KerberosPrincipal principal = krb5It.next();
+ if (principal.getName().equals(servicePrincipal))
+ krb5Principal = principal;
+ }
+
+ if (krb5Principal == null)
+ return null;
+
+ GSSManager manager = GSSManager.getInstance();
+ try {
+ GSSName gssName = manager.createName(krb5Principal.getName(), null);
+ GSSCredential serverCredentials = Subject.doAs(subject, new PrivilegedExceptionAction<GSSCredential>() {
+
+ @Override
+ public GSSCredential run() throws GSSException {
+ return manager.createCredential(gssName, GSSCredential.INDEFINITE_LIFETIME, KERBEROS_OID,
+ GSSCredential.ACCEPT_ONLY);
+
+ }
+
+ });
+ if (log.isDebugEnabled())
+ log.debug("GSS acceptor configured for " + krb5Principal);
+ return serverCredentials;
+ } catch (Exception gsse) {
+ throw new IllegalStateException("Cannot create acceptor credentials for " + krb5Principal, gsse);
+ }
+ }
+
+ public GSSCredential getAcceptorCredentials() {
+ return acceptorCredentials;
+ }
+
+ public boolean hasAcceptorCredentials() {
+ return acceptorCredentials != null;
+ }
+
+ public boolean isSingleUser() {
+ return singleUser;
+ }
+
+ public void setTransactionManager(WorkControl transactionManager) {
+ this.transactionManager = transactionManager;
+ }
+
+ public void setUserTransaction(WorkTransaction userTransaction) {
+ this.userTransaction = userTransaction;
+ }
+
+ /*
+ * STATIC
+ */
+
+ public final static Oid KERBEROS_OID;
+ static {
+ try {
+ KERBEROS_OID = new Oid("1.3.6.1.5.5.2");
+ } catch (GSSException e) {
+ throw new IllegalStateException("Cannot create Kerberos OID", e);
+ }
+ }
+}
projects / lgpl / argeo-commons.git / blobdiff