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/*
* JBoss, Home of Professional Open Source.
* Copyright 2015, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.naming.client;
import static java.security.AccessController.doPrivileged;
import static org.wildfly.naming.client.util.EnvironmentUtils.CONNECT_OPTIONS;
import static org.wildfly.naming.client.util.EnvironmentUtils.EJB_HOST_KEY;
import static org.wildfly.naming.client.util.EnvironmentUtils.EJB_PORT_KEY;
import static org.wildfly.naming.client.util.EnvironmentUtils.EJB_REMOTE_CONNECTIONS;
import static org.wildfly.naming.client.util.EnvironmentUtils.EJB_REMOTE_CONNECTION_PREFIX;
import static org.wildfly.naming.client.util.EnvironmentUtils.EJB_REMOTE_CONNECTION_PROVIDER_PREFIX;
import java.net.URI;
import java.net.URISyntaxException;
import java.security.PrivilegedAction;
import java.util.Iterator;
import java.util.ServiceConfigurationError;
import java.util.ServiceLoader;
import javax.naming.Binding;
import javax.naming.CompositeName;
import javax.naming.Context;
import javax.naming.InvalidNameException;
import javax.naming.Name;
import javax.naming.NameClassPair;
import javax.naming.NameParser;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.spi.NamingManager;
import org.wildfly.common.Assert;
import org.wildfly.common.expression.Expression;
import org.wildfly.naming.client._private.Messages;
import org.wildfly.naming.client.util.FastHashtable;
import org.wildfly.naming.client.util.NamingUtils;
import org.xnio.Options;
/**
* A root context which locates providers based on the {@link Context#PROVIDER_URL} environment property as well as any
* URL scheme which appears as a part of the JNDI name in the first segment.
*
* @author David M. Lloyd
* @author Tomasz Adamski
*/
public final class WildFlyRootContext implements Context {
static {
Version.getVersion();
}
private static final NameParser NAME_PARSER = CompositeName::new;
private final FastHashtable environment;
private final Object loaderLock = new Object();
private final ServiceLoader namingProviderServiceLoader;
private final ServiceLoader namingContextServiceLoader;
/**
* Construct a new instance, searching the thread context class loader for providers. If no context class loader is
* set when this constructor is called, the class loader of this class is used.
*
* @param environment the environment to use (not copied)
*/
public WildFlyRootContext(final FastHashtable environment) {
this(environment, secureGetContextClassLoader());
}
/**
* Construct a new instance, searching the given class loader for providers.
*
* @param environment the environment to use (not copied)
* @param classLoader the class loader to search for providers
*/
public WildFlyRootContext(final FastHashtable environment, final ClassLoader classLoader) {
this.environment = environment;
namingProviderServiceLoader = ServiceLoader.load(NamingProviderFactory.class, classLoader);
namingContextServiceLoader = ServiceLoader.load(NamingContextFactory.class, classLoader);
}
private WildFlyRootContext(final FastHashtable environment, final ServiceLoader namingProviderServiceLoader, final ServiceLoader namingContextServiceLoader) {
this.environment = environment;
this.namingProviderServiceLoader = namingProviderServiceLoader;
this.namingContextServiceLoader = namingContextServiceLoader;
}
private static ClassLoader secureGetContextClassLoader() {
final ClassLoader contextClassLoader;
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
contextClassLoader = doPrivileged((PrivilegedAction) WildFlyRootContext::getContextClassLoader);
} else {
contextClassLoader = getContextClassLoader();
}
return contextClassLoader == null ? WildFlyRootContext.class.getClassLoader() : contextClassLoader;
}
private static ClassLoader getContextClassLoader() {
return Thread.currentThread().getContextClassLoader();
}
@Override
public Object lookup(final String name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
if (reparsedName.isEmpty()) {
return new WildFlyRootContext(environment.clone(), namingProviderServiceLoader, namingContextServiceLoader);
}
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return result.context.lookup(name);
} else {
return result.context.lookup(reparsedName.getName());
}
}
@Override
public Object lookup(Name name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
if (reparsedName.isEmpty()) {
return new WildFlyRootContext(environment.clone(), namingProviderServiceLoader, namingContextServiceLoader);
}
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return result.context.lookup(name);
} else {
return result.context.lookup(reparsedName.getName());
}
}
@Override
public void bind(final String name, final Object obj) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.bind(name, obj);
} else {
result.context.bind(reparsedName.getName(), obj);
}
}
@Override
public void bind(final Name name, final Object obj) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.bind(name, obj);
} else {
result.context.bind(reparsedName.getName(), obj);
}
}
@Override
public void rebind(final String name, final Object obj) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.rebind(name, obj);
} else {
result.context.rebind(reparsedName.getName(), obj);
}
}
@Override
public void rebind(final Name name, final Object obj) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.rebind(name, obj);
} else {
result.context.rebind(reparsedName.getName(), obj);
}
}
@Override
public void unbind(final String name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.unbind(name);
} else {
result.context.unbind(reparsedName.getName());
}
}
@Override
public void unbind(final Name name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.unbind(name);
} else {
result.context.unbind(reparsedName.getName());
}
}
@Override
public void rename(final String oldName, final String newName) throws NamingException {
Assert.checkNotNullParam("oldName", oldName);
Assert.checkNotNullParam("newName", newName);
final ReparsedName oldReparsedName = reparse(getNameParser().parse(oldName));
final ReparsedName newReparsedName = reparse(getNameParser().parse(newName));
ContextResult result = getProviderContext(oldReparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.rename(oldName, newName);
} else {
result.context.rename(oldReparsedName.getName(), newReparsedName.getName());
}
}
@Override
public void rename(final Name oldName, final Name newName) throws NamingException {
Assert.checkNotNullParam("oldName", oldName);
Assert.checkNotNullParam("newName", newName);
final ReparsedName oldReparsedName = reparse(oldName);
final ReparsedName newReparsedName = reparse(newName);
ContextResult result = getProviderContext(oldReparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.rename(oldName, newName);
} else {
result.context.rename(oldReparsedName.getName(), newReparsedName.getName());
}
}
@Override
public NamingEnumeration list(final String name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.list(
name));
} else {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.list(
reparsedName.getName()));
}
}
@Override
public NamingEnumeration list(final Name name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.list(
name));
} else {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.list(
reparsedName.getName()));
}
}
@Override
public NamingEnumeration listBindings(final String name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.listBindings(
name));
} else {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.listBindings(
reparsedName.getName()));
}
}
@Override
public NamingEnumeration listBindings(final Name name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.listBindings(
name));
} else {
return CloseableNamingEnumeration.fromEnumeration(getProviderContext(reparsedName.getUrlScheme()).context.listBindings(
reparsedName.getName()));
}
}
@Override
public void destroySubcontext(final String name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.destroySubcontext(name);
} else {
result.context.destroySubcontext(reparsedName.getName());
}
}
@Override
public void destroySubcontext(final Name name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
result.context.destroySubcontext(name);
} else {
result.context.destroySubcontext(reparsedName.getName());
}
}
@Override
public Context createSubcontext(final String name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return result.context.createSubcontext(name);
} else {
return result.context.createSubcontext(reparsedName.getName());
}
}
@Override
public Context createSubcontext(final Name name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return result.context.createSubcontext(name);
} else {
return result.context.createSubcontext(reparsedName.getName());
}
}
@Override
public Object lookupLink(final String name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(getNameParser().parse(name));
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return result.context.lookupLink(name);
} else {
return result.context.lookupLink(reparsedName.getName());
}
}
@Override
public Object lookupLink(final Name name) throws NamingException {
Assert.checkNotNullParam("name", name);
final ReparsedName reparsedName = reparse(name);
ContextResult result = getProviderContext(reparsedName.getUrlScheme());
if(result.oldStyle) {
return result.context.lookupLink(name);
} else {
return result.context.lookupLink(reparsedName.getName());
}
}
@Override
public NameParser getNameParser(Name name) throws NamingException {
return getNameParser();
}
@Override
public NameParser getNameParser(String s) throws NamingException {
return getNameParser();
}
private NameParser getNameParser(){
return NAME_PARSER;
}
public String composeName(final String name, final String prefix) throws NamingException {
Assert.checkNotNullParam("name", name);
Assert.checkNotNullParam("prefix", prefix);
return composeName(getNameParser().parse(name), getNameParser().parse(prefix)).toString();
}
public Name composeName(final Name name, final Name prefix) throws NamingException {
return prefix.addAll(name);
}
public Object addToEnvironment(final String propName, final Object propVal) {
return environment.put(propName, propVal);
}
public Object removeFromEnvironment(final String propName) {
return environment.remove(propName);
}
@Override
public FastHashtable getEnvironment() throws NamingException {
return environment;
}
public void close() throws NamingException {
}
public String getNameInNamespace() throws NamingException {
// always root
return "";
}
private ContextResult getProviderContext(final String nameScheme) throws NamingException {
// get provider scheme
final Object urlString = getProviderUrl(getEnvironment());
URI providerUri;
try {
providerUri = urlString == null ? null : new URI(urlString.toString());
} catch (URISyntaxException e) {
throw Messages.log.invalidProviderUri(e, urlString);
}
final String providerScheme = providerUri == null ? null : providerUri.getScheme();
// check for empty
if (providerScheme == null || providerScheme.isEmpty()) {
// search for context factories which support a null provider
synchronized (loaderLock) {
final Iterator contextIterator = namingContextServiceLoader.iterator();
for (;;) try {
if (! contextIterator.hasNext()) break;
final NamingContextFactory contextFactory = contextIterator.next();
if (contextFactory.supportsUriScheme(null, nameScheme)) {
return new ContextResult(contextFactory.createRootContext(null, nameScheme, getEnvironment()), false);
}
} catch (ServiceConfigurationError error) {
Messages.log.serviceConfigFailed(error);
}
}
if (nameScheme != null) {
// there is a name scheme to resolve; try the old-fashioned way
final Context context = NamingManager.getURLContext(nameScheme, environment);
if (context != null) {
return new ContextResult(context, true);
}
}
// by default, support an empty local root context
return new ContextResult(NamingUtils.emptyContext(getEnvironment()), false);
}
// get active naming providers
final ServiceLoader providerLoader = this.namingProviderServiceLoader;
synchronized (providerLoader) {
final Iterator providerIterator = providerLoader.iterator();
for (;;) try {
if (! providerIterator.hasNext()) break;
final NamingProviderFactory providerFactory = providerIterator.next();
if (providerFactory.supportsUriScheme(providerScheme, getEnvironment())) {
final NamingProvider provider = providerFactory.createProvider(providerUri, getEnvironment());
final Iterator contextIterator = namingContextServiceLoader.iterator();
for (;;) try {
if (! contextIterator.hasNext()) break;
final NamingContextFactory contextFactory = contextIterator.next();
if (contextFactory.supportsUriScheme(provider, nameScheme)) {
return new ContextResult(contextFactory.createRootContext(provider, nameScheme, getEnvironment()), false);
}
} catch (ServiceConfigurationError error) {
Messages.log.serviceConfigFailed(error);
}
}
} catch (ServiceConfigurationError error) {
Messages.log.serviceConfigFailed(error);
}
if (nameScheme != null) {
// there is a name scheme to resolve; try the old-fashioned way
final Context context = NamingManager.getURLContext(nameScheme, environment);
if (context != null) {
return new ContextResult(context, true);
}
}
throw Messages.log.noProviderForUri(nameScheme);
}
}
/**
* Get the provider URL. If a provider URL has not been specified but properties for an EJB remote connection have
* been specified, attempt to determine the provider URL from the EJB remote connection host and port properties.
*
* @param env the environment (must not be {@code null})
* @return the provider URL, or {@code null} if there is none or if it cannot be determined from other properties
*/
private Object getProviderUrl(final FastHashtable env) {
Object urlString= env.get(Context.PROVIDER_URL);
if (urlString != null) {
return Expression.compile(urlString.toString(), Expression.Flag.LENIENT_SYNTAX).evaluateWithPropertiesAndEnvironment(false);
}
final String connectionName = (String) env.getOrDefault(EJB_REMOTE_CONNECTIONS, "");
if (connectionName.isEmpty() || connectionName.contains(",")) {
// either no EJB connection properties were specified or multiple EJB connections were specified,
// cannot directly convert to equivalent naming properties
return null;
}
// only one EJB connection was specified, attempt to determine the PROVIDER_URL from the EJB HOST and PORT properties
final String ejbPrefix = EJB_REMOTE_CONNECTION_PREFIX + connectionName + ".";
final String host = getStringProperty(ejbPrefix + EJB_HOST_KEY, env);
final String port = getStringProperty(ejbPrefix + EJB_PORT_KEY, env);
String sslEnabled = getStringProperty(ejbPrefix + CONNECT_OPTIONS + Options.SSL_ENABLED, env);
if (sslEnabled == null) {
sslEnabled = getStringProperty(EJB_REMOTE_CONNECTION_PROVIDER_PREFIX + Options.SSL_ENABLED, env);
}
final String protocol;
if (Boolean.parseBoolean(sslEnabled)) {
protocol = "remote+https";
} else {
protocol = "remote+http";
}
if ((host != null) && (port != null)) {
urlString = protocol + "://" + host + ":" + port;
return Expression.compile(urlString.toString(), Expression.Flag.LENIENT_SYNTAX).evaluateWithPropertiesAndEnvironment(false);
}
return null;
}
private String getStringProperty(final String propertyName, final FastHashtable env) {
final Object propertyValue = env.get(propertyName);
return propertyValue == null ? null : (String) propertyValue;
}
ReparsedName reparse(final Name origName) throws InvalidNameException {
final Name name = (Name) origName.clone();
if (name.isEmpty()) {
return new ReparsedName(null, name);
}
final String first = name.get(0);
final int idx = first.indexOf(':');
final String urlScheme;
if (idx != -1) {
urlScheme = first.substring(0, idx);
final String segment = first.substring(idx+1);
name.remove(0);
if(segment.length()>0 || (origName.size()>1 && origName.get(1).length()>0)){
name.add(0, segment);
}
return new ReparsedName(urlScheme.isEmpty() ? null : urlScheme, name);
} else {
return new ReparsedName(null, name);
}
}
class ReparsedName {
final String urlScheme;
final Name name;
ReparsedName(final String urlScheme, final Name name){
this.urlScheme = urlScheme;
this.name = name;
}
public String getUrlScheme() {
return urlScheme;
}
public Name getName() {
return name;
}
boolean isEmpty(){
return urlScheme == null && name.isEmpty();
}
}
private class ContextResult {
final Context context;
final boolean oldStyle;
private ContextResult(Context context, boolean oldStyle) {
this.context = context;
this.oldStyle = oldStyle;
}
}
}
