/*
* 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.ParentClassLoaderFinder;
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 org.apache.webbeans.container.InjectableBeanManager;
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import java.util.Collection;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
public final class HttpUtil {
private static final String WILDCARD = SystemInstance.get().getProperty("openejb.http.wildcard", ".*");
static {
setJspFactory();
}
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 void addDefaultsIfAvailable(final WebContext wc) {
try {
final Class<?> servlet = wc.getClassLoader().loadClass("org.apache.jasper.servlet.JspServlet");
SystemInstance.get().getComponent(ServletContext.class).setAttribute("org.apache.tomcat.InstanceManager",
wc.getClassLoader().loadClass("org.apache.tomee.catalina.JavaeeInstanceManager").getConstructor(WebContext.class).newInstance(wc));
addServlet(servlet.getName(), wc, "*.jsp");
} catch (final Exception e) {
// no-op
}
}
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 {
ServletContext servletContext = wc.getServletContext();
if (servletContext == null) {
servletContext = SystemInstance.get().getComponent(ServletContext.class);
}
if ("javax.faces.webapp.FacesServlet".equals(classname)) {
try {
// faking it to let the FacesServlet starting
// NOTE: needs myfaces-impl + tomcat-jasper (JspFactory)
// TODO: handle the whole lifecycle (cleanup mainly) + use myfaces SPI to make scanning really faster (take care should work in tomee were we already have it impl)
final Class<?> mfListenerClass = wc.getClassLoader().loadClass("org.apache.myfaces.webapp.StartupServletContextListener");
final ServletContextListener servletContextListener = ServletContextListener.class.cast(mfListenerClass.newInstance());
servletContext.setAttribute("javax.enterprise.inject.spi.BeanManager", new InjectableBeanManager(wc.getWebBeansContext().getBeanManagerImpl()));
final Thread thread = Thread.currentThread();
final ClassLoader old = setClassLoader(wc, thread);
try {
servletContextListener.contextInitialized(new ServletContextEvent(servletContext));
} finally {
thread.setContextClassLoader(old);
}
servletContext.removeAttribute("javax.enterprise.inject.spi.BeanManager");
} catch (final Exception e) {
// no-op
}
}
final Thread thread = Thread.currentThread();
final ClassLoader old = setClassLoader(wc, thread);
try {
listener = new ServletListener((Servlet) wc.newInstance(wc.getClassLoader().loadClass(classname)), wc.getContextRoot());
final ServletContext sc = servletContext;
listener.getDelegate().init(new ServletConfig() {
@Override
public String getServletName() {
return classname;
}
@Override
public ServletContext getServletContext() {
return sc;
}
@Override
public String getInitParameter(final String s) {
return sc.getInitParameter(s);
}
@Override
public Enumeration<String> getInitParameterNames() {
final Enumeration<String> parameterNames = sc.getInitParameterNames();
return parameterNames == null ? Collections.<String>emptyEnumeration() : parameterNames;
}
});
} finally {
thread.setContextClassLoader(old);
}
} catch (final Exception e) {
throw new OpenEJBRuntimeException(e);
}
registry.addHttpListener(listener, pattern(wc.getContextRoot(), "/".equals(mapping) ? "/*" : mapping));
return true;
}
private static void setJspFactory() {
try {
final ClassLoader classLoader = ParentClassLoaderFinder.Helper.get();
final Class<?> jspFactory = classLoader.loadClass("org.apache.jasper.runtime.JspFactoryImpl");
final Class<?> jspFactoryApi = classLoader.loadClass("javax.servlet.jsp.JspFactory");
jspFactoryApi.getMethod("setDefaultFactory", jspFactoryApi).invoke(null, jspFactory.newInstance());
} catch (final Throwable t) {
// no-op
}
}
private static ClassLoader setClassLoader(final WebContext wc, final Thread thread) {
final ClassLoader old = thread.getContextClassLoader();
thread.setContextClassLoader(wc.getClassLoader() == null ? wc.getAppContext().getClassLoader() : wc.getClassLoader());
return old;
}
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);
if (servlet.getClass().equals("org.apache.jasper.servlet.JspServlet")) {
SystemInstance.get().getComponent(ServletContext.class).removeAttribute("org.apache.tomcat.InstanceManager");
}
}
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 (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 (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.startsWith("*.") ? WILDCARD + "\\" + mapping.substring(1) : mapping;
if (path.endsWith("*")) {
path = path.substring(0, path.length() - 1) + WILDCARD;
}
return path;
}
}