/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.openejb.server.httpd.util;
import org.apache.openejb.OpenEJBRuntimeException;
import org.apache.openejb.core.WebContext;
import org.apache.openejb.loader.SystemInstance;
import org.apache.openejb.server.httpd.FilterListener;
import org.apache.openejb.server.httpd.HttpListener;
import org.apache.openejb.server.httpd.HttpListenerRegistry;
import org.apache.openejb.server.httpd.ServletListener;
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.Servlet;
import java.util.Collection;
import java.util.List;
public final class HttpUtil {
private static final String WILDCARD = SystemInstance.get().getProperty("openejb.http.wildcard", ".*");
private HttpUtil() {
// no-op
}
public static String selectSingleAddress(final List<String> addresses) {
if (addresses == null || addresses.isEmpty()) {
return null;
}
// return the first http address
for (final String address : addresses) {
if (address.startsWith("http:")) {
return address;
}
}
// return the first https address
for (final String address : addresses) {
if (address.startsWith("https:")) {
return address;
}
}
// just return the first address
return addresses.iterator().next();
}
public static boolean addServlet(final String classname, final WebContext wc, final String mapping) {
final HttpListenerRegistry registry = SystemInstance.get().getComponent(HttpListenerRegistry.class);
if (registry == null || mapping == null) {
return false;
}
final ServletListener listener;
try {
listener = new ServletListener((Servlet) wc.newInstance(wc.getClassLoader().loadClass(classname)), wc.getContextRoot());
listener.getDelegate().init(null);
} catch (final Exception e) {
throw new OpenEJBRuntimeException(e);
}
registry.addHttpListener(listener, pattern(wc.getContextRoot(), mapping));
return true;
}
public static void removeServlet(final String mapping, final WebContext wc) {
final HttpListenerRegistry registry = SystemInstance.get().getComponent(HttpListenerRegistry.class);
if (registry == null || mapping == null) {
return;
}
final Servlet servlet = ((ServletListener) registry.removeHttpListener(pattern(wc.getContextRoot(), mapping))).getDelegate();
servlet.destroy();
wc.destroy(servlet);
}
public static boolean addFilter(final String classname, final WebContext wc, final String mapping, final FilterConfig config) {
final HttpListenerRegistry registry = SystemInstance.get().getComponent(HttpListenerRegistry.class);
if (registry == null || mapping == null) {
return false;
}
final FilterListener listener;
try {
listener = new FilterListener((Filter) wc.newInstance(wc.getClassLoader().loadClass(classname)), wc.getContextRoot());
listener.getDelegate().init(config);
} catch (final Exception e) {
throw new OpenEJBRuntimeException(e);
}
registry.addHttpFilter(listener, pattern(wc.getContextRoot(), mapping));
return true;
}
public static void removeFilter(final String mapping, final WebContext wc) {
final HttpListenerRegistry registry = SystemInstance.get().getComponent(HttpListenerRegistry.class);
if (registry == null || mapping == null) {
return;
}
final Collection<HttpListener> filters = registry.removeHttpFilter(pattern(wc.getContextRoot(), mapping));
for (final HttpListener listener : filters) {
final Filter filter = ((FilterListener) listener).getDelegate();
filter.destroy();
wc.destroy(filter);
}
filters.clear();
}
private static String pattern(final String contextRoot, final String mapping) {
String path = "";
if (contextRoot != null) {
path = contextRoot;
}
if (!path.startsWith("/")) {
path = '/' + path;
}
if (!mapping.startsWith("/") && !path.endsWith("/")) {
path += '/';
}
path += mapping;
if (path.endsWith("*")) {
path = path.substring(0, path.length()) + WILDCARD;
}
return path;
}
}