org.eclipse.jetty.server.handler.ContextHandler Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.server.handler;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import java.util.EventListener;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextAttributeEvent;
import javax.servlet.ServletContextAttributeListener;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletException;
import javax.servlet.ServletRequestAttributeListener;
import javax.servlet.ServletRequestEvent;
import javax.servlet.ServletRequestListener;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.http.HttpException;
import org.eclipse.jetty.http.MimeTypes;
import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.server.AbstractHttpConnection;
import org.eclipse.jetty.server.Dispatcher;
import org.eclipse.jetty.server.DispatcherType;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.HandlerContainer;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.Attributes;
import org.eclipse.jetty.util.AttributesMap;
import org.eclipse.jetty.util.LazyList;
import org.eclipse.jetty.util.Loader;
import org.eclipse.jetty.util.StringUtil;
import org.eclipse.jetty.util.TypeUtil;
import org.eclipse.jetty.util.URIUtil;
import org.eclipse.jetty.util.component.AggregateLifeCycle;
import org.eclipse.jetty.util.component.Dumpable;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.resource.Resource;
/* ------------------------------------------------------------ */
/**
* ContextHandler.
*
* This handler wraps a call to handle by setting the context and servlet path, plus setting the context classloader.
*
*
* If the context init parameter "org.eclipse.jetty.server.context.ManagedAttributes" is set to a comma separated list of names, then they are treated as
* context attribute names, which if set as attributes are passed to the servers Container so that they may be managed with JMX.
*
* The maximum size of a form that can be processed by this context is controlled by the system properties org.eclipse.jetty.server.Request.maxFormKeys
* and org.eclipse.jetty.server.Request.maxFormContentSize. These can also be configured with {@link #setMaxFormContentSize(int)} and {@link #setMaxFormKeys(int)}
*
* @org.apache.xbean.XBean description="Creates a basic HTTP context"
*/
public class ContextHandler extends ScopedHandler implements Attributes, Server.Graceful
{
private static final Logger LOG = Log.getLogger(ContextHandler.class);
private static final ThreadLocal __context = new ThreadLocal();
/**
* If a context attribute with this name is set, it is interpreted as a comma separated list of attribute name. Any other context attributes that are set
* with a name from this list will result in a call to {@link #setManagedAttribute(String, Object)}, which typically initiates the creation of a JMX MBean
* for the attribute value.
*/
public static final String MANAGED_ATTRIBUTES = "org.eclipse.jetty.server.context.ManagedAttributes";
/* ------------------------------------------------------------ */
/**
* Get the current ServletContext implementation.
*
* @return ServletContext implementation
*/
public static Context getCurrentContext()
{
return __context.get();
}
protected Context _scontext;
private final AttributesMap _attributes;
private final AttributesMap _contextAttributes;
private final Map _initParams;
private ClassLoader _classLoader;
private String _contextPath = "/";
private String _displayName;
private Resource _baseResource;
private MimeTypes _mimeTypes;
private Map _localeEncodingMap;
private String[] _welcomeFiles;
private ErrorHandler _errorHandler;
private String[] _vhosts;
private Set _connectors;
private EventListener[] _eventListeners;
private Logger _logger;
private boolean _allowNullPathInfo;
private int _maxFormKeys = Integer.getInteger("org.eclipse.jetty.server.Request.maxFormKeys",-1).intValue();
private int _maxFormContentSize = Integer.getInteger("org.eclipse.jetty.server.Request.maxFormContentSize",-1).intValue();
private boolean _compactPath = false;
private boolean _aliasesAllowed = false;
private Object _contextListeners;
private Object _contextAttributeListeners;
private Object _requestListeners;
private Object _requestAttributeListeners;
private Map _managedAttributes;
private String[] _protectedTargets;
private final CopyOnWriteArrayList _aliasChecks = new CopyOnWriteArrayList();
private boolean _shutdown = false;
private boolean _available = true;
private volatile int _availability; // 0=STOPPED, 1=AVAILABLE, 2=SHUTDOWN, 3=UNAVAILABLE
private final static int __STOPPED = 0, __AVAILABLE = 1, __SHUTDOWN = 2, __UNAVAILABLE = 3;
/* ------------------------------------------------------------ */
/**
*
*/
public ContextHandler()
{
super();
_scontext = new Context();
_attributes = new AttributesMap();
_contextAttributes = new AttributesMap();
_initParams = new HashMap();
addAliasCheck(new ApproveNonExistentDirectoryAliases());
}
/* ------------------------------------------------------------ */
/**
*
*/
protected ContextHandler(Context context)
{
super();
_scontext = context;
_attributes = new AttributesMap();
_contextAttributes = new AttributesMap();
_initParams = new HashMap();
addAliasCheck(new ApproveNonExistentDirectoryAliases());
}
/* ------------------------------------------------------------ */
/**
*
*/
public ContextHandler(String contextPath)
{
this();
setContextPath(contextPath);
}
/* ------------------------------------------------------------ */
/**
*
*/
public ContextHandler(HandlerContainer parent, String contextPath)
{
this();
setContextPath(contextPath);
if (parent instanceof HandlerWrapper)
((HandlerWrapper)parent).setHandler(this);
else if (parent instanceof HandlerCollection)
((HandlerCollection)parent).addHandler(this);
}
/* ------------------------------------------------------------ */
@Override
public void dump(Appendable out, String indent) throws IOException
{
dumpThis(out);
dump(out,indent,Collections.singletonList(new CLDump(getClassLoader())),TypeUtil.asList(getHandlers()),getBeans(),_initParams.entrySet(),
_attributes.getAttributeEntrySet(),_contextAttributes.getAttributeEntrySet());
}
/* ------------------------------------------------------------ */
public Context getServletContext()
{
return _scontext;
}
/* ------------------------------------------------------------ */
/**
* @return the allowNullPathInfo true if /context is not redirected to /context/
*/
public boolean getAllowNullPathInfo()
{
return _allowNullPathInfo;
}
/* ------------------------------------------------------------ */
/**
* @param allowNullPathInfo
* true if /context is not redirected to /context/
*/
public void setAllowNullPathInfo(boolean allowNullPathInfo)
{
_allowNullPathInfo = allowNullPathInfo;
}
/* ------------------------------------------------------------ */
@Override
public void setServer(Server server)
{
if (_errorHandler != null)
{
Server old_server = getServer();
if (old_server != null && old_server != server)
old_server.getContainer().update(this,_errorHandler,null,"error",true);
super.setServer(server);
if (server != null && server != old_server)
server.getContainer().update(this,null,_errorHandler,"error",true);
_errorHandler.setServer(server);
}
else
super.setServer(server);
}
/* ------------------------------------------------------------ */
/**
* Set the virtual hosts for the context. Only requests that have a matching host header or fully qualified URL will be passed to that context with a
* virtual host name. A context with no virtual host names or a null virtual host name is available to all requests that are not served by a context with a
* matching virtual host name.
*
* @param vhosts
* Array of virtual hosts that this context responds to. A null host name or null/empty array means any hostname is acceptable. Host names may be
* String representation of IP addresses. Host names may start with '*.' to wildcard one level of names.
*/
public void setVirtualHosts(String[] vhosts)
{
if (vhosts == null)
{
_vhosts = vhosts;
}
else
{
_vhosts = new String[vhosts.length];
for (int i = 0; i < vhosts.length; i++)
_vhosts[i] = normalizeHostname(vhosts[i]);
}
}
/* ------------------------------------------------------------ */
/** Either set virtual hosts or add to an existing set of virtual hosts.
*
* @param virtualHosts
* Array of virtual hosts that this context responds to. A null host name or null/empty array means any hostname is acceptable. Host names may be
* String representation of IP addresses. Host names may start with '*.' to wildcard one level of names.
*/
public void addVirtualHosts(String[] virtualHosts)
{
if (virtualHosts == null) // since this is add, we don't null the old ones
{
return;
}
else
{
List currentVirtualHosts = null;
if (_vhosts != null)
{
currentVirtualHosts = new ArrayList(Arrays.asList(_vhosts));
}
else
{
currentVirtualHosts = new ArrayList();
}
for (int i = 0; i < virtualHosts.length; i++)
{
String normVhost = normalizeHostname(virtualHosts[i]);
if (!currentVirtualHosts.contains(normVhost))
{
currentVirtualHosts.add(normVhost);
}
}
_vhosts = currentVirtualHosts.toArray(new String[0]);
}
}
/* ------------------------------------------------------------ */
/**
* Removes an array of virtual host entries, if this removes all entries the _vhosts will be set to null
*
* @param virtualHosts
* Array of virtual hosts that this context responds to. A null host name or null/empty array means any hostname is acceptable. Host names may be
* String representation of IP addresses. Host names may start with '*.' to wildcard one level of names.
*/
public void removeVirtualHosts(String[] virtualHosts)
{
if (virtualHosts == null)
{
return; // do nothing
}
else if ( _vhosts == null || _vhosts.length == 0)
{
return; // do nothing
}
else
{
List existingVirtualHosts = new ArrayList(Arrays.asList(_vhosts));
for (int i = 0; i < virtualHosts.length; i++)
{
String toRemoveVirtualHost = normalizeHostname(virtualHosts[i]);
if (existingVirtualHosts.contains(toRemoveVirtualHost))
{
existingVirtualHosts.remove(toRemoveVirtualHost);
}
}
if (existingVirtualHosts.isEmpty())
{
_vhosts = null; // if we ended up removing them all, just null out _vhosts
}
else
{
_vhosts = existingVirtualHosts.toArray(new String[0]);
}
}
}
/* ------------------------------------------------------------ */
/**
* Get the virtual hosts for the context. Only requests that have a matching host header or fully qualified URL will be passed to that context with a
* virtual host name. A context with no virtual host names or a null virtual host name is available to all requests that are not served by a context with a
* matching virtual host name.
*
* @return Array of virtual hosts that this context responds to. A null host name or empty array means any hostname is acceptable. Host names may be String
* representation of IP addresses. Host names may start with '*.' to wildcard one level of names.
*/
public String[] getVirtualHosts()
{
return _vhosts;
}
/* ------------------------------------------------------------ */
/**
* @return an array of connector names that this context will accept a request from.
*/
public String[] getConnectorNames()
{
if (_connectors == null || _connectors.size() == 0)
return null;
return _connectors.toArray(new String[_connectors.size()]);
}
/* ------------------------------------------------------------ */
/**
* Set the names of accepted connectors.
*
* Names are either "host:port" or a specific configured name for a connector.
*
* @param connectors
* If non null, an array of connector names that this context will accept a request from.
*/
public void setConnectorNames(String[] connectors)
{
if (connectors == null || connectors.length == 0)
_connectors = null;
else
_connectors = new HashSet(Arrays.asList(connectors));
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getAttribute(java.lang.String)
*/
public Object getAttribute(String name)
{
return _attributes.getAttribute(name);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getAttributeNames()
*/
@SuppressWarnings("unchecked")
public Enumeration getAttributeNames()
{
return AttributesMap.getAttributeNamesCopy(_attributes);
}
/* ------------------------------------------------------------ */
/**
* @return Returns the attributes.
*/
public Attributes getAttributes()
{
return _attributes;
}
/* ------------------------------------------------------------ */
/**
* @return Returns the classLoader.
*/
public ClassLoader getClassLoader()
{
return _classLoader;
}
/* ------------------------------------------------------------ */
/**
* Make best effort to extract a file classpath from the context classloader
*
* @return Returns the classLoader.
*/
public String getClassPath()
{
if (_classLoader == null || !(_classLoader instanceof URLClassLoader))
return null;
URLClassLoader loader = (URLClassLoader)_classLoader;
URL[] urls = loader.getURLs();
StringBuilder classpath = new StringBuilder();
for (int i = 0; i < urls.length; i++)
{
try
{
Resource resource = newResource(urls[i]);
File file = resource.getFile();
if (file != null && file.exists())
{
if (classpath.length() > 0)
classpath.append(File.pathSeparatorChar);
classpath.append(file.getAbsolutePath());
}
}
catch (IOException e)
{
LOG.debug(e);
}
}
if (classpath.length() == 0)
return null;
return classpath.toString();
}
/* ------------------------------------------------------------ */
/**
* @return Returns the _contextPath.
*/
public String getContextPath()
{
return _contextPath;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getInitParameter(java.lang.String)
*/
public String getInitParameter(String name)
{
return _initParams.get(name);
}
/* ------------------------------------------------------------ */
/*
*/
public String setInitParameter(String name, String value)
{
return _initParams.put(name,value);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getInitParameterNames()
*/
@SuppressWarnings("rawtypes")
public Enumeration getInitParameterNames()
{
return Collections.enumeration(_initParams.keySet());
}
/* ------------------------------------------------------------ */
/**
* @return Returns the initParams.
*/
public Map getInitParams()
{
return _initParams;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getServletContextName()
*/
public String getDisplayName()
{
return _displayName;
}
/* ------------------------------------------------------------ */
public EventListener[] getEventListeners()
{
return _eventListeners;
}
/* ------------------------------------------------------------ */
/**
* Set the context event listeners.
*
* @param eventListeners
* the event listeners
* @see ServletContextListener
* @see ServletContextAttributeListener
* @see ServletRequestListener
* @see ServletRequestAttributeListener
*/
public void setEventListeners(EventListener[] eventListeners)
{
_contextListeners = null;
_contextAttributeListeners = null;
_requestListeners = null;
_requestAttributeListeners = null;
_eventListeners = eventListeners;
for (int i = 0; eventListeners != null && i < eventListeners.length; i++)
{
EventListener listener = _eventListeners[i];
if (listener instanceof ServletContextListener)
_contextListeners = LazyList.add(_contextListeners,listener);
if (listener instanceof ServletContextAttributeListener)
_contextAttributeListeners = LazyList.add(_contextAttributeListeners,listener);
if (listener instanceof ServletRequestListener)
_requestListeners = LazyList.add(_requestListeners,listener);
if (listener instanceof ServletRequestAttributeListener)
_requestAttributeListeners = LazyList.add(_requestAttributeListeners,listener);
}
}
/* ------------------------------------------------------------ */
/**
* Add a context event listeners.
*
* @see ServletContextListener
* @see ServletContextAttributeListener
* @see ServletRequestListener
* @see ServletRequestAttributeListener
*/
public void addEventListener(EventListener listener)
{
setEventListeners((EventListener[])LazyList.addToArray(getEventListeners(),listener,EventListener.class));
}
/* ------------------------------------------------------------ */
/**
* @return true if this context is accepting new requests
*/
public boolean isShutdown()
{
synchronized (this)
{
return !_shutdown;
}
}
/* ------------------------------------------------------------ */
/**
* Set shutdown status. This field allows for graceful shutdown of a context. A started context may be put into non accepting state so that existing
* requests can complete, but no new requests are accepted.
*
* @param shutdown
* true if this context is (not?) accepting new requests
*/
public void setShutdown(boolean shutdown)
{
synchronized (this)
{
_shutdown = shutdown;
_availability = isRunning()?(_shutdown?__SHUTDOWN:_available?__AVAILABLE:__UNAVAILABLE):__STOPPED;
}
}
/* ------------------------------------------------------------ */
/**
* @return false if this context is unavailable (sends 503)
*/
public boolean isAvailable()
{
synchronized (this)
{
return _available;
}
}
/* ------------------------------------------------------------ */
/**
* Set Available status.
*/
public void setAvailable(boolean available)
{
synchronized (this)
{
_available = available;
_availability = isRunning()?(_shutdown?__SHUTDOWN:_available?__AVAILABLE:__UNAVAILABLE):__STOPPED;
}
}
/* ------------------------------------------------------------ */
public Logger getLogger()
{
return _logger;
}
/* ------------------------------------------------------------ */
public void setLogger(Logger logger)
{
_logger = logger;
}
/* ------------------------------------------------------------ */
/*
* @see org.eclipse.thread.AbstractLifeCycle#doStart()
*/
@Override
protected void doStart() throws Exception
{
_availability = __STOPPED;
if (_contextPath == null)
throw new IllegalStateException("Null contextPath");
_logger = Log.getLogger(getDisplayName() == null?getContextPath():getDisplayName());
ClassLoader old_classloader = null;
Thread current_thread = null;
Context old_context = null;
try
{
// Set the classloader
if (_classLoader != null)
{
current_thread = Thread.currentThread();
old_classloader = current_thread.getContextClassLoader();
current_thread.setContextClassLoader(_classLoader);
}
if (_mimeTypes == null)
_mimeTypes = new MimeTypes();
old_context = __context.get();
__context.set(_scontext);
// defers the calling of super.doStart()
startContext();
synchronized(this)
{
_availability = _shutdown?__SHUTDOWN:_available?__AVAILABLE:__UNAVAILABLE;
}
}
finally
{
__context.set(old_context);
// reset the classloader
if (_classLoader != null)
{
current_thread.setContextClassLoader(old_classloader);
}
}
}
/* ------------------------------------------------------------ */
/**
* Extensible startContext. this method is called from {@link ContextHandler#doStart()} instead of a call to super.doStart(). This allows derived classes to
* insert additional handling (Eg configuration) before the call to super.doStart by this method will start contained handlers.
*
* @see org.eclipse.jetty.server.handler.ContextHandler.Context
*/
protected void startContext() throws Exception
{
String managedAttributes = _initParams.get(MANAGED_ATTRIBUTES);
if (managedAttributes != null)
{
_managedAttributes = new HashMap();
String[] attributes = managedAttributes.split(",");
for (String attribute : attributes)
_managedAttributes.put(attribute,null);
Enumeration e = _scontext.getAttributeNames();
while (e.hasMoreElements())
{
String name = (String)e.nextElement();
Object value = _scontext.getAttribute(name);
checkManagedAttribute(name,value);
}
}
super.doStart();
if (_errorHandler != null)
_errorHandler.start();
// Context listeners
if (_contextListeners != null)
{
ServletContextEvent event = new ServletContextEvent(_scontext);
for (int i = 0; i < LazyList.size(_contextListeners); i++)
{
((ServletContextListener)LazyList.get(_contextListeners,i)).contextInitialized(event);
}
}
LOG.info("started {}",this);
}
/* ------------------------------------------------------------ */
/*
* @see org.eclipse.thread.AbstractLifeCycle#doStop()
*/
@Override
protected void doStop() throws Exception
{
_availability = __STOPPED;
ClassLoader old_classloader = null;
Thread current_thread = null;
Context old_context = __context.get();
__context.set(_scontext);
try
{
// Set the classloader
if (_classLoader != null)
{
current_thread = Thread.currentThread();
old_classloader = current_thread.getContextClassLoader();
current_thread.setContextClassLoader(_classLoader);
}
super.doStop();
// Context listeners
if (_contextListeners != null)
{
ServletContextEvent event = new ServletContextEvent(_scontext);
for (int i = LazyList.size(_contextListeners); i-- > 0;)
{
((ServletContextListener)LazyList.get(_contextListeners,i)).contextDestroyed(event);
}
}
if (_errorHandler != null)
_errorHandler.stop();
Enumeration e = _scontext.getAttributeNames();
while (e.hasMoreElements())
{
String name = (String)e.nextElement();
checkManagedAttribute(name,null);
}
}
finally
{
LOG.info("stopped {}",this);
__context.set(old_context);
// reset the classloader
if (_classLoader != null)
current_thread.setContextClassLoader(old_classloader);
}
_contextAttributes.clearAttributes();
}
/* ------------------------------------------------------------ */
/*
* @see org.eclipse.jetty.server.Handler#handle(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
public boolean checkContext(final String target, final Request baseRequest, final HttpServletResponse response) throws IOException, ServletException
{
DispatcherType dispatch = baseRequest.getDispatcherType();
switch (_availability)
{
case __STOPPED:
case __SHUTDOWN:
return false;
case __UNAVAILABLE:
baseRequest.setHandled(true);
response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
return false;
default:
if ((DispatcherType.REQUEST.equals(dispatch) && baseRequest.isHandled()))
return false;
}
// Check the vhosts
if (_vhosts != null && _vhosts.length > 0)
{
String vhost = normalizeHostname(baseRequest.getServerName());
boolean match = false;
// TODO non-linear lookup
for (int i = 0; !match && i < _vhosts.length; i++)
{
String contextVhost = _vhosts[i];
if (contextVhost == null)
continue;
if (contextVhost.startsWith("*."))
{
// wildcard only at the beginning, and only for one additional subdomain level
match = contextVhost.regionMatches(true,2,vhost,vhost.indexOf(".") + 1,contextVhost.length() - 2);
}
else
match = contextVhost.equalsIgnoreCase(vhost);
}
if (!match)
return false;
}
// Check the connector
if (_connectors != null && _connectors.size() > 0)
{
String connector = AbstractHttpConnection.getCurrentConnection().getConnector().getName();
if (connector == null || !_connectors.contains(connector))
return false;
}
// Are we not the root context?
if (_contextPath.length() > 1)
{
// reject requests that are not for us
if (!target.startsWith(_contextPath))
return false;
if (target.length() > _contextPath.length() && target.charAt(_contextPath.length()) != '/')
return false;
// redirect null path infos
if (!_allowNullPathInfo && _contextPath.length() == target.length())
{
// context request must end with /
baseRequest.setHandled(true);
if (baseRequest.getQueryString() != null)
response.sendRedirect(URIUtil.addPaths(baseRequest.getRequestURI(),URIUtil.SLASH) + "?" + baseRequest.getQueryString());
else
response.sendRedirect(URIUtil.addPaths(baseRequest.getRequestURI(),URIUtil.SLASH));
return false;
}
}
return true;
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.server.handler.ScopedHandler#doScope(java.lang.String, org.eclipse.jetty.server.Request, javax.servlet.http.HttpServletRequest,
* javax.servlet.http.HttpServletResponse)
*/
@Override
public void doScope(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
if (LOG.isDebugEnabled())
LOG.debug("scope {}|{}|{} @ {}",baseRequest.getContextPath(),baseRequest.getServletPath(),baseRequest.getPathInfo(),this);
Context old_context = null;
String old_context_path = null;
String old_servlet_path = null;
String old_path_info = null;
ClassLoader old_classloader = null;
Thread current_thread = null;
String pathInfo = target;
DispatcherType dispatch = baseRequest.getDispatcherType();
old_context = baseRequest.getContext();
// Are we already in this context?
if (old_context != _scontext)
{
// check the target.
if (DispatcherType.REQUEST.equals(dispatch) || DispatcherType.ASYNC.equals(dispatch))
{
if (_compactPath)
target = URIUtil.compactPath(target);
if (!checkContext(target,baseRequest,response))
return;
if (target.length() > _contextPath.length())
{
if (_contextPath.length() > 1)
target = target.substring(_contextPath.length());
pathInfo = target;
}
else if (_contextPath.length() == 1)
{
target = URIUtil.SLASH;
pathInfo = URIUtil.SLASH;
}
else
{
target = URIUtil.SLASH;
pathInfo = null;
}
}
// Set the classloader
if (_classLoader != null)
{
current_thread = Thread.currentThread();
old_classloader = current_thread.getContextClassLoader();
current_thread.setContextClassLoader(_classLoader);
}
}
try
{
old_context_path = baseRequest.getContextPath();
old_servlet_path = baseRequest.getServletPath();
old_path_info = baseRequest.getPathInfo();
// Update the paths
baseRequest.setContext(_scontext);
__context.set(_scontext);
if (!DispatcherType.INCLUDE.equals(dispatch) && target.startsWith("/"))
{
if (_contextPath.length() == 1)
baseRequest.setContextPath("");
else
baseRequest.setContextPath(_contextPath);
baseRequest.setServletPath(null);
baseRequest.setPathInfo(pathInfo);
}
if (LOG.isDebugEnabled())
LOG.debug("context={}|{}|{} @ {}",baseRequest.getContextPath(),baseRequest.getServletPath(), baseRequest.getPathInfo(),this);
// start manual inline of nextScope(target,baseRequest,request,response);
if (never())
nextScope(target,baseRequest,request,response);
else if (_nextScope != null)
_nextScope.doScope(target,baseRequest,request,response);
else if (_outerScope != null)
_outerScope.doHandle(target,baseRequest,request,response);
else
doHandle(target,baseRequest,request,response);
// end manual inline (pathentic attempt to reduce stack depth)
}
finally
{
if (old_context != _scontext)
{
// reset the classloader
if (_classLoader != null)
{
current_thread.setContextClassLoader(old_classloader);
}
// reset the context and servlet path.
baseRequest.setContext(old_context);
__context.set(old_context);
baseRequest.setContextPath(old_context_path);
baseRequest.setServletPath(old_servlet_path);
baseRequest.setPathInfo(old_path_info);
}
}
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.server.handler.ScopedHandler#doHandle(java.lang.String, org.eclipse.jetty.server.Request, javax.servlet.http.HttpServletRequest,
* javax.servlet.http.HttpServletResponse)
*/
@Override
public void doHandle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
final DispatcherType dispatch = baseRequest.getDispatcherType();
final boolean new_context = baseRequest.takeNewContext();
try
{
if (new_context)
{
// Handle the REALLY SILLY request events!
if (_requestAttributeListeners != null)
{
final int s = LazyList.size(_requestAttributeListeners);
for (int i = 0; i < s; i++)
baseRequest.addEventListener(((EventListener)LazyList.get(_requestAttributeListeners,i)));
}
if (_requestListeners != null)
{
final int s = LazyList.size(_requestListeners);
final ServletRequestEvent sre = new ServletRequestEvent(_scontext,request);
for (int i = 0; i < s; i++)
((ServletRequestListener)LazyList.get(_requestListeners,i)).requestInitialized(sre);
}
}
if (DispatcherType.REQUEST.equals(dispatch) && isProtectedTarget(target))
throw new HttpException(HttpServletResponse.SC_NOT_FOUND);
// start manual inline of nextHandle(target,baseRequest,request,response);
// noinspection ConstantIfStatement
if (never())
nextHandle(target,baseRequest,request,response);
else if (_nextScope != null && _nextScope == _handler)
_nextScope.doHandle(target,baseRequest,request,response);
else if (_handler != null)
_handler.handle(target,baseRequest,request,response);
// end manual inline
}
catch (HttpException e)
{
LOG.debug(e);
baseRequest.setHandled(true);
response.sendError(e.getStatus(),e.getReason());
}
finally
{
// Handle more REALLY SILLY request events!
if (new_context)
{
if (_requestListeners != null)
{
final ServletRequestEvent sre = new ServletRequestEvent(_scontext,request);
for (int i = LazyList.size(_requestListeners); i-- > 0;)
((ServletRequestListener)LazyList.get(_requestListeners,i)).requestDestroyed(sre);
}
if (_requestAttributeListeners != null)
{
for (int i = LazyList.size(_requestAttributeListeners); i-- > 0;)
baseRequest.removeEventListener(((EventListener)LazyList.get(_requestAttributeListeners,i)));
}
}
}
}
/* ------------------------------------------------------------ */
/*
* Handle a runnable in this context
*/
public void handle(Runnable runnable)
{
ClassLoader old_classloader = null;
Thread current_thread = null;
Context old_context = null;
try
{
old_context = __context.get();
__context.set(_scontext);
// Set the classloader
if (_classLoader != null)
{
current_thread = Thread.currentThread();
old_classloader = current_thread.getContextClassLoader();
current_thread.setContextClassLoader(_classLoader);
}
runnable.run();
}
finally
{
__context.set(old_context);
if (old_classloader != null)
{
current_thread.setContextClassLoader(old_classloader);
}
}
}
/* ------------------------------------------------------------ */
/**
* Check the target. Called by {@link #handle(String, Request, HttpServletRequest, HttpServletResponse)} when a target within a context is determined. If
* the target is protected, 404 is returned.
*/
/* ------------------------------------------------------------ */
public boolean isProtectedTarget(String target)
{
if (target == null || _protectedTargets == null)
return false;
while (target.startsWith("//"))
target=URIUtil.compactPath(target);
boolean isProtected = false;
int i=0;
while (!isProtected && i<_protectedTargets.length)
{
isProtected = StringUtil.startsWithIgnoreCase(target, _protectedTargets[i++]);
}
return isProtected;
}
public void setProtectedTargets (String[] targets)
{
if (targets == null)
{
_protectedTargets = null;
return;
}
_protectedTargets = new String[targets.length];
System.arraycopy(targets, 0, _protectedTargets, 0, targets.length);
}
public String[] getProtectedTargets ()
{
if (_protectedTargets == null)
return null;
String[] tmp = new String[_protectedTargets.length];
System.arraycopy(_protectedTargets, 0, tmp, 0, _protectedTargets.length);
return tmp;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#removeAttribute(java.lang.String)
*/
public void removeAttribute(String name)
{
checkManagedAttribute(name,null);
_attributes.removeAttribute(name);
}
/* ------------------------------------------------------------ */
/*
* Set a context attribute. Attributes set via this API cannot be overriden by the ServletContext.setAttribute API. Their lifecycle spans the stop/start of
* a context. No attribute listener events are triggered by this API.
*
* @see javax.servlet.ServletContext#setAttribute(java.lang.String, java.lang.Object)
*/
public void setAttribute(String name, Object value)
{
checkManagedAttribute(name,value);
_attributes.setAttribute(name,value);
}
/* ------------------------------------------------------------ */
/**
* @param attributes
* The attributes to set.
*/
public void setAttributes(Attributes attributes)
{
_attributes.clearAttributes();
_attributes.addAll(attributes);
Enumeration e = _attributes.getAttributeNames();
while (e.hasMoreElements())
{
String name = (String)e.nextElement();
checkManagedAttribute(name,attributes.getAttribute(name));
}
}
/* ------------------------------------------------------------ */
public void clearAttributes()
{
Enumeration e = _attributes.getAttributeNames();
while (e.hasMoreElements())
{
String name = (String)e.nextElement();
checkManagedAttribute(name,null);
}
_attributes.clearAttributes();
}
/* ------------------------------------------------------------ */
public void checkManagedAttribute(String name, Object value)
{
if (_managedAttributes != null && _managedAttributes.containsKey(name))
{
setManagedAttribute(name,value);
}
}
/* ------------------------------------------------------------ */
public void setManagedAttribute(String name, Object value)
{
Object old = _managedAttributes.put(name,value);
getServer().getContainer().update(this,old,value,name,true);
}
/* ------------------------------------------------------------ */
/**
* @param classLoader
* The classLoader to set.
*/
public void setClassLoader(ClassLoader classLoader)
{
_classLoader = classLoader;
}
/* ------------------------------------------------------------ */
/**
* @param contextPath
* The _contextPath to set.
*/
public void setContextPath(String contextPath)
{
if (contextPath != null && contextPath.length() > 1 && contextPath.endsWith("/"))
throw new IllegalArgumentException("ends with /");
_contextPath = contextPath;
if (getServer() != null && (getServer().isStarting() || getServer().isStarted()))
{
Handler[] contextCollections = getServer().getChildHandlersByClass(ContextHandlerCollection.class);
for (int h = 0; contextCollections != null && h < contextCollections.length; h++)
((ContextHandlerCollection)contextCollections[h]).mapContexts();
}
}
/* ------------------------------------------------------------ */
/**
* @param servletContextName
* The servletContextName to set.
*/
public void setDisplayName(String servletContextName)
{
_displayName = servletContextName;
}
/* ------------------------------------------------------------ */
/**
* @return Returns the resourceBase.
*/
public Resource getBaseResource()
{
if (_baseResource == null)
return null;
return _baseResource;
}
/* ------------------------------------------------------------ */
/**
* @return Returns the base resource as a string.
*/
public String getResourceBase()
{
if (_baseResource == null)
return null;
return _baseResource.toString();
}
/* ------------------------------------------------------------ */
/**
* @param base
* The resourceBase to set.
*/
public void setBaseResource(Resource base)
{
_baseResource = base;
}
/* ------------------------------------------------------------ */
/**
* @param resourceBase
* The base resource as a string.
*/
public void setResourceBase(String resourceBase)
{
try
{
setBaseResource(newResource(resourceBase));
}
catch (Exception e)
{
LOG.warn(e.toString());
LOG.debug(e);
throw new IllegalArgumentException(resourceBase);
}
}
/* ------------------------------------------------------------ */
/**
* @return True if aliases are allowed
*/
public boolean isAliases()
{
return _aliasesAllowed;
}
/* ------------------------------------------------------------ */
/**
* @param aliases
* aliases are allowed
*/
public void setAliases(boolean aliases)
{
_aliasesAllowed = aliases;
}
/* ------------------------------------------------------------ */
/**
* @return Returns the mimeTypes.
*/
public MimeTypes getMimeTypes()
{
if (_mimeTypes == null)
_mimeTypes = new MimeTypes();
return _mimeTypes;
}
/* ------------------------------------------------------------ */
/**
* @param mimeTypes
* The mimeTypes to set.
*/
public void setMimeTypes(MimeTypes mimeTypes)
{
_mimeTypes = mimeTypes;
}
/* ------------------------------------------------------------ */
/**
*/
public void setWelcomeFiles(String[] files)
{
_welcomeFiles = files;
}
/* ------------------------------------------------------------ */
/**
* @return The names of the files which the server should consider to be welcome files in this context.
* @see The Servlet Specification
* @see #setWelcomeFiles
*/
public String[] getWelcomeFiles()
{
return _welcomeFiles;
}
/* ------------------------------------------------------------ */
/**
* @return Returns the errorHandler.
*/
public ErrorHandler getErrorHandler()
{
return _errorHandler;
}
/* ------------------------------------------------------------ */
/**
* @param errorHandler
* The errorHandler to set.
*/
public void setErrorHandler(ErrorHandler errorHandler)
{
if (errorHandler != null)
errorHandler.setServer(getServer());
if (getServer() != null)
getServer().getContainer().update(this,_errorHandler,errorHandler,"errorHandler",true);
_errorHandler = errorHandler;
}
/* ------------------------------------------------------------ */
public int getMaxFormContentSize()
{
return _maxFormContentSize;
}
/* ------------------------------------------------------------ */
/**
* Set the maximum size of a form post, to protect against DOS attacks from large forms.
* @param maxSize
*/
public void setMaxFormContentSize(int maxSize)
{
_maxFormContentSize = maxSize;
}
/* ------------------------------------------------------------ */
public int getMaxFormKeys()
{
return _maxFormKeys;
}
/* ------------------------------------------------------------ */
/**
* Set the maximum number of form Keys to protect against DOS attack from crafted hash keys.
* @param max
*/
public void setMaxFormKeys(int max)
{
_maxFormKeys = max;
}
/* ------------------------------------------------------------ */
/**
* @return True if URLs are compacted to replace multiple '/'s with a single '/'
*/
public boolean isCompactPath()
{
return _compactPath;
}
/* ------------------------------------------------------------ */
/**
* @param compactPath
* True if URLs are compacted to replace multiple '/'s with a single '/'
*/
public void setCompactPath(boolean compactPath)
{
_compactPath = compactPath;
}
/* ------------------------------------------------------------ */
@Override
public String toString()
{
String[] vhosts = getVirtualHosts();
StringBuilder b = new StringBuilder();
Package pkg = getClass().getPackage();
if (pkg != null)
{
String p = pkg.getName();
if (p != null && p.length() > 0)
{
String[] ss = p.split("\\.");
for (String s : ss)
b.append(s.charAt(0)).append('.');
}
}
b.append(getClass().getSimpleName());
b.append('{').append(getContextPath()).append(',').append(getBaseResource());
if (vhosts != null && vhosts.length > 0)
b.append(',').append(vhosts[0]);
b.append('}');
return b.toString();
}
/* ------------------------------------------------------------ */
public synchronized Class loadClass(String className) throws ClassNotFoundException
{
if (className == null)
return null;
if (_classLoader == null)
return Loader.loadClass(this.getClass(),className);
return _classLoader.loadClass(className);
}
/* ------------------------------------------------------------ */
public void addLocaleEncoding(String locale, String encoding)
{
if (_localeEncodingMap == null)
_localeEncodingMap = new HashMap();
_localeEncodingMap.put(locale,encoding);
}
public String getLocaleEncoding(String locale)
{
if (_localeEncodingMap == null)
return null;
String encoding = _localeEncodingMap.get(locale);
return encoding;
}
/* ------------------------------------------------------------ */
/**
* Get the character encoding for a locale. The full locale name is first looked up in the map of encodings. If no encoding is found, then the locale
* language is looked up.
*
* @param locale
* a Locale value
* @return a String representing the character encoding for the locale or null if none found.
*/
public String getLocaleEncoding(Locale locale)
{
if (_localeEncodingMap == null)
return null;
String encoding = _localeEncodingMap.get(locale.toString());
if (encoding == null)
encoding = _localeEncodingMap.get(locale.getLanguage());
return encoding;
}
/* ------------------------------------------------------------ */
/*
*/
public Resource getResource(String path) throws MalformedURLException
{
if (path == null || !path.startsWith(URIUtil.SLASH))
throw new MalformedURLException(path);
if (_baseResource == null)
return null;
try
{
path = URIUtil.canonicalPath(path);
Resource resource = _baseResource.addPath(path);
if (checkAlias(path,resource))
return resource;
return null;
}
catch (Exception e)
{
LOG.ignore(e);
}
return null;
}
/* ------------------------------------------------------------ */
public boolean checkAlias(String path, Resource resource)
{
// Is the resource aliased?
if (!_aliasesAllowed && resource.getAlias() != null)
{
if (LOG.isDebugEnabled())
LOG.debug("Aliased resource: " + resource + "~=" + resource.getAlias());
// alias checks
for (Iterator i=_aliasChecks.iterator();i.hasNext();)
{
AliasCheck check = i.next();
if (check.check(path,resource))
{
if (LOG.isDebugEnabled())
LOG.debug("Aliased resource: " + resource + " approved by " + check);
return true;
}
}
return false;
}
return true;
}
/* ------------------------------------------------------------ */
/**
* Convert URL to Resource wrapper for {@link Resource#newResource(URL)} enables extensions to provide alternate resource implementations.
*/
public Resource newResource(URL url) throws IOException
{
return Resource.newResource(url);
}
/* ------------------------------------------------------------ */
/**
* Convert a URL or path to a Resource. The default implementation is a wrapper for {@link Resource#newResource(String)}.
*
* @param urlOrPath
* The URL or path to convert
* @return The Resource for the URL/path
* @throws IOException
* The Resource could not be created.
*/
public Resource newResource(String urlOrPath) throws IOException
{
return Resource.newResource(urlOrPath);
}
/* ------------------------------------------------------------ */
/*
*/
public Set getResourcePaths(String path)
{
try
{
path = URIUtil.canonicalPath(path);
Resource resource = getResource(path);
if (resource != null && resource.exists())
{
if (!path.endsWith(URIUtil.SLASH))
path = path + URIUtil.SLASH;
String[] l = resource.list();
if (l != null)
{
HashSet set = new HashSet();
for (int i = 0; i < l.length; i++)
set.add(path + l[i]);
return set;
}
}
}
catch (Exception e)
{
LOG.ignore(e);
}
return Collections.emptySet();
}
/* ------------------------------------------------------------ */
private String normalizeHostname(String host)
{
if (host == null)
return null;
if (host.endsWith("."))
return host.substring(0,host.length() - 1);
return host;
}
/* ------------------------------------------------------------ */
/**
* Add an AliasCheck instance to possibly permit aliased resources
* @param check The alias checker
*/
public void addAliasCheck(AliasCheck check)
{
_aliasChecks.add(check);
}
/* ------------------------------------------------------------ */
/**
* @return Mutable list of Alias checks
*/
public List getAliasChecks()
{
return _aliasChecks;
}
/* ------------------------------------------------------------ */
/**
* Context.
*
* A partial implementation of {@link javax.servlet.ServletContext}. A complete implementation is provided by the derived {@link ContextHandler}.
*
*
*
*/
public class Context implements ServletContext
{
/* ------------------------------------------------------------ */
protected Context()
{
}
/* ------------------------------------------------------------ */
public ContextHandler getContextHandler()
{
// TODO reduce visibility of this method
return ContextHandler.this;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getContext(java.lang.String)
*/
public ServletContext getContext(String uripath)
{
List contexts = new ArrayList();
Handler[] handlers = getServer().getChildHandlersByClass(ContextHandler.class);
String matched_path = null;
for (Handler handler : handlers)
{
if (handler == null)
continue;
ContextHandler ch = (ContextHandler)handler;
String context_path = ch.getContextPath();
if (uripath.equals(context_path) || (uripath.startsWith(context_path) && uripath.charAt(context_path.length()) == '/')
|| "/".equals(context_path))
{
// look first for vhost matching context only
if (getVirtualHosts() != null && getVirtualHosts().length > 0)
{
if (ch.getVirtualHosts() != null && ch.getVirtualHosts().length > 0)
{
for (String h1 : getVirtualHosts())
for (String h2 : ch.getVirtualHosts())
if (h1.equals(h2))
{
if (matched_path == null || context_path.length() > matched_path.length())
{
contexts.clear();
matched_path = context_path;
}
if (matched_path.equals(context_path))
contexts.add(ch);
}
}
}
else
{
if (matched_path == null || context_path.length() > matched_path.length())
{
contexts.clear();
matched_path = context_path;
}
if (matched_path.equals(context_path))
contexts.add(ch);
}
}
}
if (contexts.size() > 0)
return contexts.get(0)._scontext;
// try again ignoring virtual hosts
matched_path = null;
for (Handler handler : handlers)
{
if (handler == null)
continue;
ContextHandler ch = (ContextHandler)handler;
String context_path = ch.getContextPath();
if (uripath.equals(context_path) || (uripath.startsWith(context_path) && uripath.charAt(context_path.length()) == '/')
|| "/".equals(context_path))
{
if (matched_path == null || context_path.length() > matched_path.length())
{
contexts.clear();
matched_path = context_path;
}
if (matched_path.equals(context_path))
contexts.add(ch);
}
}
if (contexts.size() > 0)
return contexts.get(0)._scontext;
return null;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getMajorVersion()
*/
public int getMajorVersion()
{
return 2;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getMimeType(java.lang.String)
*/
public String getMimeType(String file)
{
if (_mimeTypes == null)
return null;
Buffer mime = _mimeTypes.getMimeByExtension(file);
if (mime != null)
return mime.toString();
return null;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getMinorVersion()
*/
public int getMinorVersion()
{
return 5;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getNamedDispatcher(java.lang.String)
*/
public RequestDispatcher getNamedDispatcher(String name)
{
return null;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getRequestDispatcher(java.lang.String)
*/
public RequestDispatcher getRequestDispatcher(String uriInContext)
{
if (uriInContext == null)
return null;
if (!uriInContext.startsWith("/"))
return null;
try
{
String query = null;
int q = 0;
if ((q = uriInContext.indexOf('?')) > 0)
{
query = uriInContext.substring(q + 1);
uriInContext = uriInContext.substring(0,q);
}
// if ((q = uriInContext.indexOf(';')) > 0)
// uriInContext = uriInContext.substring(0,q);
String pathInContext = URIUtil.canonicalPath(URIUtil.decodePath(uriInContext));
String uri = URIUtil.addPaths(getContextPath(),uriInContext);
ContextHandler context = ContextHandler.this;
return new Dispatcher(context,uri,pathInContext,query);
}
catch (Exception e)
{
LOG.ignore(e);
}
return null;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getRealPath(java.lang.String)
*/
public String getRealPath(String path)
{
if (path == null)
return null;
if (path.length() == 0)
path = URIUtil.SLASH;
else if (path.charAt(0) != '/')
path = URIUtil.SLASH + path;
try
{
Resource resource = ContextHandler.this.getResource(path);
if (resource != null)
{
File file = resource.getFile();
if (file != null)
return file.getCanonicalPath();
}
}
catch (Exception e)
{
LOG.ignore(e);
}
return null;
}
/* ------------------------------------------------------------ */
public URL getResource(String path) throws MalformedURLException
{
Resource resource = ContextHandler.this.getResource(path);
if (resource != null && resource.exists())
return resource.getURL();
return null;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getResourceAsStream(java.lang.String)
*/
public InputStream getResourceAsStream(String path)
{
try
{
URL url = getResource(path);
if (url == null)
return null;
Resource r = Resource.newResource(url);
return r.getInputStream();
}
catch (Exception e)
{
LOG.ignore(e);
return null;
}
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getResourcePaths(java.lang.String)
*/
public Set getResourcePaths(String path)
{
return ContextHandler.this.getResourcePaths(path);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getServerInfo()
*/
public String getServerInfo()
{
return "jetty/" + Server.getVersion();
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getServlet(java.lang.String)
*/
public Servlet getServlet(String name) throws ServletException
{
return null;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getServletNames()
*/
@SuppressWarnings("unchecked")
public Enumeration getServletNames()
{
return Collections.enumeration(Collections.EMPTY_LIST);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getServlets()
*/
@SuppressWarnings("unchecked")
public Enumeration getServlets()
{
return Collections.enumeration(Collections.EMPTY_LIST);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#log(java.lang.Exception, java.lang.String)
*/
public void log(Exception exception, String msg)
{
_logger.warn(msg,exception);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#log(java.lang.String)
*/
public void log(String msg)
{
_logger.info(msg);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#log(java.lang.String, java.lang.Throwable)
*/
public void log(String message, Throwable throwable)
{
_logger.warn(message,throwable);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getInitParameter(java.lang.String)
*/
public String getInitParameter(String name)
{
return ContextHandler.this.getInitParameter(name);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getInitParameterNames()
*/
@SuppressWarnings("unchecked")
public Enumeration getInitParameterNames()
{
return ContextHandler.this.getInitParameterNames();
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getAttribute(java.lang.String)
*/
public synchronized Object getAttribute(String name)
{
Object o = ContextHandler.this.getAttribute(name);
if (o == null && _contextAttributes != null)
o = _contextAttributes.getAttribute(name);
return o;
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getAttributeNames()
*/
@SuppressWarnings("unchecked")
public synchronized Enumeration getAttributeNames()
{
HashSet set = new HashSet();
if (_contextAttributes != null)
{
Enumeration e = _contextAttributes.getAttributeNames();
while (e.hasMoreElements())
set.add(e.nextElement());
}
Enumeration e = _attributes.getAttributeNames();
while (e.hasMoreElements())
set.add(e.nextElement());
return Collections.enumeration(set);
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#setAttribute(java.lang.String, java.lang.Object)
*/
public synchronized void setAttribute(String name, Object value)
{
checkManagedAttribute(name,value);
Object old_value = _contextAttributes.getAttribute(name);
if (value == null)
_contextAttributes.removeAttribute(name);
else
_contextAttributes.setAttribute(name,value);
if (_contextAttributeListeners != null)
{
ServletContextAttributeEvent event = new ServletContextAttributeEvent(_scontext,name,old_value == null?value:old_value);
for (int i = 0; i < LazyList.size(_contextAttributeListeners); i++)
{
ServletContextAttributeListener l = (ServletContextAttributeListener)LazyList.get(_contextAttributeListeners,i);
if (old_value == null)
l.attributeAdded(event);
else if (value == null)
l.attributeRemoved(event);
else
l.attributeReplaced(event);
}
}
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#removeAttribute(java.lang.String)
*/
public synchronized void removeAttribute(String name)
{
checkManagedAttribute(name,null);
if (_contextAttributes == null)
{
// Set it on the handler
_attributes.removeAttribute(name);
return;
}
Object old_value = _contextAttributes.getAttribute(name);
_contextAttributes.removeAttribute(name);
if (old_value != null)
{
if (_contextAttributeListeners != null)
{
ServletContextAttributeEvent event = new ServletContextAttributeEvent(_scontext,name,old_value);
for (int i = 0; i < LazyList.size(_contextAttributeListeners); i++)
((ServletContextAttributeListener)LazyList.get(_contextAttributeListeners,i)).attributeRemoved(event);
}
}
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletContext#getServletContextName()
*/
public String getServletContextName()
{
String name = ContextHandler.this.getDisplayName();
if (name == null)
name = ContextHandler.this.getContextPath();
return name;
}
/* ------------------------------------------------------------ */
public String getContextPath()
{
if ((_contextPath != null) && _contextPath.equals(URIUtil.SLASH))
return "";
return _contextPath;
}
/* ------------------------------------------------------------ */
@Override
public String toString()
{
return "ServletContext@" + ContextHandler.this.toString();
}
/* ------------------------------------------------------------ */
public boolean setInitParameter(String name, String value)
{
if (ContextHandler.this.getInitParameter(name) != null)
return false;
ContextHandler.this.getInitParams().put(name,value);
return true;
}
}
private static class CLDump implements Dumpable
{
final ClassLoader _loader;
CLDump(ClassLoader loader)
{
_loader = loader;
}
public String dump()
{
return AggregateLifeCycle.dump(this);
}
public void dump(Appendable out, String indent) throws IOException
{
out.append(String.valueOf(_loader)).append("\n");
if (_loader != null)
{
Object parent = _loader.getParent();
if (parent != null)
{
if (!(parent instanceof Dumpable))
parent = new CLDump((ClassLoader)parent);
if (_loader instanceof URLClassLoader)
AggregateLifeCycle.dump(out,indent,TypeUtil.asList(((URLClassLoader)_loader).getURLs()),Collections.singleton(parent));
else
AggregateLifeCycle.dump(out,indent,Collections.singleton(parent));
}
}
}
}
/* ------------------------------------------------------------ */
/** Interface to check aliases
*/
public interface AliasCheck
{
/* ------------------------------------------------------------ */
/** Check an alias
* @param path The path the aliased resource was created for
* @param resource The aliased resourced
* @return True if the resource is OK to be served.
*/
boolean check(String path, Resource resource);
}
/* ------------------------------------------------------------ */
/** Approve Aliases with same suffix.
* Eg. a symbolic link from /foobar.html to /somewhere/wibble.html would be
* approved because both the resource and alias end with ".html".
*/
@Deprecated
public static class ApproveSameSuffixAliases implements AliasCheck
{
{
LOG.warn("ApproveSameSuffixAlias is not safe for production");
}
public boolean check(String path, Resource resource)
{
int dot = path.lastIndexOf('.');
if (dot<0)
return false;
String suffix=path.substring(dot);
return resource.toString().endsWith(suffix);
}
}
/* ------------------------------------------------------------ */
/** Approve Aliases with a path prefix.
* Eg. a symbolic link from /dirA/foobar.html to /dirB/foobar.html would be
* approved because both the resource and alias end with "/foobar.html".
*/
@Deprecated
public static class ApprovePathPrefixAliases implements AliasCheck
{
{
LOG.warn("ApprovePathPrefixAliases is not safe for production");
}
public boolean check(String path, Resource resource)
{
int slash = path.lastIndexOf('/');
if (slash<0 || slash==path.length()-1)
return false;
String suffix=path.substring(slash);
return resource.toString().endsWith(suffix);
}
}
/* ------------------------------------------------------------ */
/** Approve Aliases of a non existent directory.
* If a directory "/foobar/" does not exist, then the resource is
* aliased to "/foobar". Accept such aliases.
*/
public static class ApproveNonExistentDirectoryAliases implements AliasCheck
{
public boolean check(String path, Resource resource)
{
if (resource.exists())
return false;
String a=resource.getAlias().toString();
String r=resource.getURL().toString();
if (a.length()>r.length())
return a.startsWith(r) && a.length()==r.length()+1 && a.endsWith("/");
else
return r.startsWith(a) && r.length()==a.length()+1 && r.endsWith("/");
}
}
}