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/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
* Copyright (c) 2006, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.enterprise.naming.impl;
import java.lang.System.Logger;
import java.lang.System.Logger.Level;
import java.util.Hashtable;
import java.util.Objects;
import javax.naming.Binding;
import javax.naming.CompositeName;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NameClassPair;
import javax.naming.NameNotFoundException;
import javax.naming.NameParser;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.NotContextException;
import org.glassfish.api.admin.ProcessEnvironment;
import org.glassfish.api.admin.ProcessEnvironment.ProcessType;
import org.glassfish.api.naming.ComponentNamingUtil;
import org.glassfish.api.naming.SimpleJndiName;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.internal.api.Globals;
import static org.glassfish.api.naming.SimpleJndiName.JNDI_CTX_JAVA;
import static org.glassfish.api.naming.SimpleJndiName.JNDI_CTX_JAVA_APP;
import static org.glassfish.api.naming.SimpleJndiName.JNDI_CTX_JAVA_APP_ENV;
import static org.glassfish.api.naming.SimpleJndiName.JNDI_CTX_JAVA_COMPONENT_ENV;
import static org.glassfish.api.naming.SimpleJndiName.JNDI_CTX_JAVA_GLOBAL;
import static org.glassfish.api.naming.SimpleJndiName.JNDI_CTX_JAVA_MODULE_ENV;
/**
* This class is a context implementation for the java:* namespaces.
* The context determines the component id from the invocation manager
* of the component that is invoking the method and then looks up the
* object in that component's local namespace.
*/
public final class JavaURLContext implements Context, Cloneable {
private static final Logger LOG = System.getLogger(JavaURLContext.class.getName());
private static GlassfishNamingManagerImpl namingManager;
private final SimpleJndiName myName;
private final Hashtable myEnv;
// FIXME: Should not be here, causes cyclic dependency directly between these two classes.
// When something goes wrong, tryNamingManager can result in StackOverflowError
private final SerialContext serialContext;
static void setNamingManager(GlassfishNamingManagerImpl mgr) {
namingManager = mgr;
}
/**
* Create a context with the specified environment.
*/
public JavaURLContext(SimpleJndiName name) {
this.myName = Objects.requireNonNull(name, "name");
this.myEnv = getMyEnv(null);
this.serialContext = null;
}
/**
* Create a context with the specified name+environment.
*/
public JavaURLContext(SimpleJndiName name, Hashtable environment) {
this.myName = Objects.requireNonNull(name, "name");
this.myEnv = getMyEnv(environment);
this.serialContext = null;
}
public JavaURLContext(Hashtable environment, SerialContext serialContext) {
this.myName = new SimpleJndiName("");
this.myEnv = getMyEnv(environment);
this.serialContext = serialContext;
}
/**
* Create a context with the same name and env.
*/
public JavaURLContext(JavaURLContext ctx) {
this.myName = ctx.myName;
this.myEnv = ctx.myEnv;
this.serialContext = null;
}
public JavaURLContext(JavaURLContext ctx, SerialContext serialContext) {
this.myName = ctx.myName;
this.myEnv = ctx.myEnv;
this.serialContext = serialContext;
}
/**
* Lookup an object in the serial context.
*
* @return the object that is being looked up.
* @throws NamingException if there is a naming exception.
*/
@Override
public Object lookup(String name) throws NamingException {
LOG.log(Level.TRACE, "lookup(name={0}); this={1}", name, this);
if (name.isEmpty()) {
// javadocs for Context.lookup: If name is empty, returns a new
// instance of this context (which represents the same naming
// context as this context, but its environment may be modified
// independently and it may be accessed concurrently).
return new JavaURLContext(myName, myEnv);
}
// Preconstructed exception collecting all tries which ended with an exception.
final NamingException e = new NameNotFoundException("No object bound for " + name);
final SimpleJndiName fullName = toFullName(name);
LOG.log(Level.DEBUG, "Computed fullname={0} for name={1}", fullName, name);
if (fullName == null) {
// if this fails, there is no reason trying another.
throw e;
}
{
// If we know for sure it's an entry within an environment namespace it might be a proxy.
if (!isAnyJavaEnvJndiName(fullName)) {
// FIXME: if we move those java: prefixes in the middle of resource names,
// this block will become unreachable!
Object obj = lookupOrCollectException(SimpleJndiName.of(name), e,
NamedNamingObjectManager::tryNamedProxies);
if (obj != null) {
return obj;
}
}
Object obj = lookupOrCollectException(fullName, e, n -> namingManager.lookup(n, serialContext));
if (obj != null) {
return obj;
}
}
final ServiceLocator services = Globals.getDefaultHabitat();
final ProcessEnvironment processEnv = services.getService(ProcessEnvironment.class);
if (fullName.isJavaApp() && processEnv.getProcessType() == ProcessType.ACC) {
// This could either be an attempt by an app client to access a portable
// remote session bean JNDI name via the java:app namespace or a lookup of
// an application-defined java:app environment dependency. Try them in
// that order.
final Context context = namingManager.getInitialContext();
String appName = (String) context.lookup(JNDI_CTX_JAVA_APP + "AppName");
if (!fullName.hasPrefix(JNDI_CTX_JAVA_APP_ENV) || !"java:app/env".equals(fullName.toString())) {
// Translate the java:app name into the equivalent java:global name so that
// the lookup will be resolved by the server.
String globalName = JNDI_CTX_JAVA_GLOBAL + appName + '/' + fullName.removePrefix();
Object obj = lookupOrCollectException(globalName, e, context::lookup);
if (obj != null) {
return obj;
}
}
ComponentNamingUtil util = services.getService(ComponentNamingUtil.class);
SimpleJndiName internalGlobalJavaAppName = util.composeInternalGlobalJavaAppName(appName, fullName);
Object obj = lookupOrCollectException(internalGlobalJavaAppName.toString(), e, context::lookup);
if (obj != null) {
return obj;
}
}
throw e;
}
/**
* Lookup a name in either the cosnaming or serial context.
*
* @return the object that is being looked up.
* @throws NamingException if there is a naming exception.
*/
@Override
public Object lookup(Name name) throws NamingException {
// Flat namespace; no federation; just call string version
return lookup(name.toString());
}
/**
* Bind an object in the namespace. Binds the reference to the
* actual object in either the cosnaming or serial context.
*
* @throws NamingException if there is a naming exception.
*/
@Override
public void bind(String name, Object obj) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* Bind an object in the namespace. Binds the reference to the
* actual object in either the cosnaming or serial context.
*
* @throws NamingException if there is a naming exception.
*/
@Override
public void bind(Name name, Object obj) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* Rebind an object in the namespace. Rebinds the reference to the
* actual object in either the cosnaming or serial context.
*
* @throws NamingException if there is a naming exception.
*/
@Override
public void rebind(String name, Object obj) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* Rebind an object in the namespace. Rebinds the reference to the
* actual object in either the cosnaming or serial context.
*
* @throws NamingException if there is a naming exception.
*/
@Override
public void rebind(Name name, Object obj) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* Unbind an object from the namespace.
*
* @throws NamingException if there is a naming exception.
*/
@Override
public void unbind(String name) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* Unbind an object from the namespace.
*
* @throws NamingException if there is a naming exception.
*/
@Override
public void unbind(Name name) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* The rename operation is not supported by this context. It throws
* an OperationNotSupportedException.
*/
@Override
public void rename(String oldname, String newname) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + oldname + " and " + newname);
}
/**
* The rename operation is not supported by this context. It throws
* an OperationNotSupportedException.
*/
@Override
public void rename(Name oldname, Name newname) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + oldname + " and " + newname);
}
/**
* The destroySubcontext operation is not supported by this context.
* It throws an OperationNotSupportedException.
*/
@Override
public void destroySubcontext(String name) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* The destroySubcontext operation is not supported by this context.
* It throws an OperationNotSupportedException.
*/
@Override
public void destroySubcontext(Name name) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
@Override
public Context createSubcontext(String name) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
@Override
public Context createSubcontext(Name name) throws NamingException {
throw new NamingException("The namespace '" + myName + "' cannot be modified. Called for " + name);
}
/**
* Lists the contents of a context or subcontext. The operation is
* delegated to the serial context.
*
* @return an enumeration of the contents of the context.
* @throws NamingException if there is a naming exception.
*/
@Override
public NamingEnumeration list(String name) throws NamingException {
if (name.isEmpty()) {
// listing this context
if (namingManager == null) {
throw new NamingException();
}
return namingManager.list(myName);
}
// Check if 'name' names a context
Object target = lookup(name);
if (target instanceof Context) {
return ((Context) target).list("");
}
throw new NotContextException(name + " cannot be listed");
}
/**
* Lists the contents of a context or subcontext. The operation is
* delegated to the serial context.
*
* @return an enumeration of the contents of the context.
* @throws NamingException if there is a naming exception.
*/
@Override
public NamingEnumeration list(Name name) throws NamingException {
// Flat namespace; no federation; just call string version
return list(name.toString());
}
/**
* Lists the bindings of a context or subcontext. The operation is
* delegated to the serial context.
*
* @return an enumeration of the bindings of the context.
* @throws NamingException if there is a naming exception.
*/
@Override
public NamingEnumeration listBindings(String name) throws NamingException {
if (name.isEmpty()) {
// listing this context
if (namingManager == null) {
throw new NamingException();
}
return namingManager.listBindings(myName);
}
// Perhaps 'name' names a context
Object target = lookup(name);
if (target instanceof Context) {
return ((Context) target).listBindings("");
}
throw new NotContextException(name + " cannot be listed");
}
/**
* Lists the bindings of a context or subcontext. The operation is
* delegated to the serial context.
*
* @return an enumeration of the bindings of the context.
* @throws NamingException if there is a naming exception.
*/
@Override
public NamingEnumeration listBindings(Name name) throws NamingException {
// Flat namespace; no federation; just call string version
return listBindings(name.toString());
}
/**
* This context does not treat links specially. A lookup operation is
* performed.
*/
@Override
public Object lookupLink(String name) throws NamingException {
// This flat context does not treat links specially
return lookup(name);
}
/**
* This context does not treat links specially. A lookup operation is
* performed.
*/
@Override
public Object lookupLink(Name name) throws NamingException {
// Flat namespace; no federation; just call string version
return lookupLink(name.toString());
}
/**
* Return the name parser for the specified name.
*
* @return the NameParser instance.
* @throws NamingException if there is an exception.
*/
@Override
public NameParser getNameParser(String name) throws NamingException {
if (namingManager == null) {
throw new NamingException("Naming manager wasn't set!");
}
return namingManager.getNameParser();
}
/**
* Return the name parser for the specified name.
*
* @return the NameParser instance.
* @throws NamingException if there is an exception.
*/
@Override
public NameParser getNameParser(Name name) throws NamingException {
// Flat namespace; no federation; just call string version
return getNameParser(name.toString());
}
@Override
public String composeName(String name, String prefix) throws NamingException {
Name result = composeName(new CompositeName(name), new CompositeName(prefix));
return result.toString();
}
@Override
public Name composeName(Name name, Name prefix) throws NamingException {
Name result = (Name) prefix.clone();
result.addAll(name);
return result;
}
/**
* Add a property to the environment.
*/
@Override
public Object addToEnvironment(String propName, Object propVal) throws NamingException {
return myEnv.put(propName, propVal);
}
/**
* Remove a property from the environment.
*/
@Override
public Object removeFromEnvironment(String propName) throws NamingException {
return myEnv.remove(propName);
}
/**
* Get the context's environment.
*/
@Override
public Hashtable getEnvironment() throws NamingException {
return myEnv;
}
/**
* New JNDI 1.2 operation.
*/
@Override
public void close() throws NamingException {
this.myEnv.clear();
}
/**
* @return my name, never null.
*/
public SimpleJndiName getName() {
return this.myName;
}
/**
* Return the name of this context within the namespace.
* The name can be passed as an argument to new InitialContext().lookup() to retrieve this
* context.
*/
@Override
public String getNameInNamespace() throws NamingException {
return myName.toString();
}
@Override
public String toString() {
return getClass().getSimpleName() + '[' + myName + ']';
}
private SimpleJndiName toFullName(String name) {
if (!SimpleJndiName.isValidJndiName(name)) {
// this is probably some generic JNDI name like jdbc:derby: or http://... etc.,
// not compatible with java contexts.
return null;
}
if (myName.isEmpty()) {
return new SimpleJndiName(name);
} else if (myName.toString().equals(JNDI_CTX_JAVA)) {
return new SimpleJndiName(myName + name);
} else {
return new SimpleJndiName(myName + "/" + name);
}
}
private static boolean isAnyJavaEnvJndiName(SimpleJndiName jndiName) {
if (jndiName == null || jndiName.isEmpty()) {
return false;
}
if (jndiName.hasPrefix(JNDI_CTX_JAVA_COMPONENT_ENV) || jndiName.hasPrefix(JNDI_CTX_JAVA_MODULE_ENV)
|| jndiName.hasPrefix(JNDI_CTX_JAVA_APP_ENV)) {
return true;
} else if (jndiName.toString().equals("java:comp/env") || jndiName.toString().equals("java:module/env")
|| jndiName.toString().equals("java:app/env")) {
return true;
}
return false;
}
@SuppressWarnings("unchecked")
private static Hashtable getMyEnv(Hashtable environment) {
return environment == null ? new Hashtable<>() : (Hashtable) environment.clone();
}
private static Object lookupOrCollectException(final N jndiName, final NamingException collector,
final NamingFunction lookup) {
try {
return lookup.applyName(jndiName);
} catch (NamingException e) {
collector.addSuppressed(e);
return null;
}
}
@FunctionalInterface
private interface NamingFunction {
Object applyName(N jndiName) throws NamingException;
}
}
