/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jsp;
import com.caucho.el.EL;
import com.caucho.el.ExprEnv;
import com.caucho.jsp.cfg.JspPropertyGroup;
import com.caucho.jsp.el.*;
import com.caucho.jstl.JstlPageContext;
import com.caucho.server.http.AbstractHttpRequest;
import com.caucho.server.http.AbstractResponseStream;
import com.caucho.server.http.CauchoRequest;
import com.caucho.server.http.CauchoResponse;
import com.caucho.server.http.RequestAdapter;
import com.caucho.server.http.ToCharResponseAdapter;
import com.caucho.server.webapp.RequestDispatcherImpl;
import com.caucho.server.webapp.WebApp;
import com.caucho.util.CharBuffer;
import com.caucho.util.DisplayableException;
import com.caucho.util.HashMapImpl;
import com.caucho.util.L10N;
import com.caucho.util.NullEnumeration;
import com.caucho.vfs.ClientDisconnectException;
import com.caucho.vfs.FlushBuffer;
import com.caucho.vfs.Path;
import com.caucho.vfs.TempCharBuffer;
import com.caucho.xpath.VarEnv;
import org.w3c.dom.Node;
import javax.el.ELContext;
import javax.el.ELContextEvent;
import javax.el.ELContextListener;
import javax.el.ELResolver;
import javax.el.ValueExpression;
import javax.servlet.*;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.ErrorData;
import javax.servlet.jsp.JspContext;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.SkipPageException;
import javax.servlet.jsp.el.ExpressionEvaluator;
import javax.servlet.jsp.el.VariableResolver;
import javax.servlet.jsp.jstl.core.Config;
import javax.servlet.jsp.jstl.fmt.LocalizationContext;
import javax.servlet.jsp.tagext.BodyContent;
import javax.servlet.jsp.tagext.JspFragment;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.Writer;
import java.lang.reflect.Method;
import java.text.MessageFormat;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
public class PageContextImpl extends PageContext
implements ExprEnv, JstlPageContext, VariableResolver {
private static final Logger log
= Logger.getLogger(PageContextImpl.class.getName());
private static final L10N L = new L10N(PageContextImpl.class);
private WebApp _webApp;
private JspWriterAdapter _jspAdapter = new JspWriterAdapter();
private JspServletOutputStream _jspOutputStream
= new JspServletOutputStream(this);
private Map<String,Object> _attributes;
private Servlet _servlet;
private HttpServletRequest _request;
private ServletResponse _servletResponse;
private CauchoResponse _response;
private ToCharResponseAdapter _responseAdapter;
private HttpSession _session;
private JspWriter _topOut;
private JspWriter _out;
private String _errorPage;
protected boolean _isFilled;
private AbstractResponseStream _responseStream;
private BodyResponseStream _bodyResponseStream;
private JspPrintWriter _jspPrintWriter;
private int _bufferSize = 8192;
private boolean autoFlush;
private BodyContentImpl _bodyOut;
private Locale _locale;
private BundleManager _bundleManager;
private VarEnv _varEnv;
private Node _nodeEnv;
private final CharBuffer _cb = new CharBuffer();
private VariableResolver _varResolver;
private PageELContext _elContextValue;
private PageELContext _elContext;
private ELResolver _elResolver;
private javax.el.FunctionMapper _functionMapper;
private PageVariableMapper _variableMapper;
private boolean _hasException;
private HashMap<String,Method> _functionMap;
private ExpressionEvaluatorImpl _expressionEvaluator;
private ELContextListener[] _elContextListeners;
PageContextImpl()
{
_attributes = new HashMapImpl<String,Object>();
_bodyResponseStream = new BodyResponseStream();
_bodyResponseStream.start();
_jspPrintWriter = new JspPrintWriter();
}
public PageContextImpl(WebApp webApp, Servlet servlet)
{
this();
if (webApp == null)
throw new NullPointerException();
_webApp = webApp;
_servlet = servlet;
if (servlet instanceof Page) {
Page page = (Page) servlet;
_functionMap = page._caucho_getFunctionMap();
}
else
_functionMap = null;
}
public PageContextImpl(WebApp webApp, HashMap<String,Method> functionMap)
{
_webApp = webApp;
_functionMap = functionMap;
}
public void initialize(Servlet servlet,
ServletRequest request,
ServletResponse response,
String errorPage,
boolean needsSession,
int bufferSize,
boolean autoFlush)
{
HttpSession session = null;
if (needsSession)
session = ((HttpServletRequest) request).getSession(true);
ServletConfig config = servlet.getServletConfig();
WebApp app = (WebApp) request.getServletContext();
_webApp = app;
initialize(servlet, app, request, response,
errorPage, session, bufferSize, autoFlush,
false);
}
public void initialize(Servlet servlet,
WebApp app,
ServletRequest request,
ServletResponse response,
String errorPage,
HttpSession session,
int bufferSize,
boolean autoFlush,
boolean isPrintNullAsBlank)
{
_webApp = app;
_servlet = servlet;
_request = (HttpServletRequest) request;
_servletResponse = response;
if (response instanceof CauchoResponse
&& bufferSize <= TempCharBuffer.SIZE) {
_response = (CauchoResponse) response;
_responseAdapter = null;
}
else {
// JSP.12.2.3 - JSP must use PrintWriter
_responseAdapter = ToCharResponseAdapter.create((HttpServletResponse) response);
_response = _responseAdapter;
try {
// jsp/017m
response.setBufferSize(bufferSize);
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
_responseStream = _response.getResponseStream();
_topOut = _jspAdapter;
_responseStream.setAutoFlush(autoFlush);
_jspAdapter.init(null, _responseStream);
_jspAdapter.setPrintNullAsBlank(isPrintNullAsBlank);
if (bufferSize != TempCharBuffer.SIZE) {
try {
_responseStream.setBufferSize(bufferSize);
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
// needed for includes from static pages
_bufferSize = bufferSize;
this.autoFlush = autoFlush;
_session = session;
_out = _topOut;
_errorPage = errorPage;
_locale = null;
// jsp/1059, jsp/3147
// XXX: recycling is important for performance reasons
_elContext = null;
if (_elContextValue != null)
_elContextValue.clear();
_hasException = false;
//if (_attributes.size() > 0)
// _attributes.clear();
_isFilled = false;
_nodeEnv = null;
if (servlet instanceof Page) {
Page page = (Page) servlet;
_functionMap = page._caucho_getFunctionMap();
}
else
_functionMap = null;
}
protected void init()
{
// XXX: important for performance reasons
// jsp/1059, jsp/3147
_elContext = null;
if (_elContextValue != null)
_elContextValue.clear();
}
protected void setOut(JspWriter out)
{
_out = out;
}
protected void clearAttributes()
{
_attributes.clear();
}
/**
* Returns the page attribute with the given name.
*
* @param name the attribute name.
*
* @return the attribute's value.
*/
public Object getAttribute(String name)
{
if (name == null)
throw new NullPointerException(L.l("getAttribute must have a non-null name"));
Object value = _attributes.get(name);
if (value != null)
return value;
else if (! _isFilled) {
fillAttribute();
value = _attributes.get(name);
}
if (value != null) {
}
else if (name.equals(OUT)) {
// jsp/162d
return _out;
}
return value;
}
/**
* Sets the page attribute with the given name.
*
* @param name the attribute name.
* @param attribute the new value
*/
public void setAttribute(String name, Object attribute)
{
if (name == null)
throw new NullPointerException(L.l("setAttribute must have a non-null name"));
if (attribute != null)
_attributes.put(name, attribute);
else
_attributes.remove(name);
}
/**
* Sets the page attribute with the given name.
*
* @param name the attribute name.
* @param attribute the new value
*/
public Object putAttribute(String name, Object attribute)
{
if (name == null)
throw new NullPointerException(L.l("putAttribute must have a non-null name"));
if (attribute != null)
return _attributes.put(name, attribute);
else
return _attributes.remove(name);
}
/**
* Removes a named attribute from the page context.
*
* @param name the name of the attribute to remove
*/
public void removeAttribute(String name)
{
if (name == null)
throw new NullPointerException(L.l("removeAttribute must have a non-null name"));
_attributes.remove(name);
// jsp/162b
if (_request != null)
_request.removeAttribute(name);
if (_session != null) {
try {
_session.removeAttribute(name);
} catch (IllegalStateException e) {
// jsp/162f
log.log(Level.FINE, e.toString(), e);
}
}
if (_webApp != null)
_webApp.removeAttribute(name);
}
private Enumeration<String> getAttributeNames()
{
if (! _isFilled)
fillAttribute();
return Collections.enumeration(_attributes.keySet());
}
/**
* Fills the predefined page content _attributes with their values.
*/
protected void fillAttribute()
{
_isFilled = true;
_attributes.put(PAGE, _servlet);
_attributes.put(PAGECONTEXT, this);
_attributes.put(REQUEST, getCauchoRequest());
_attributes.put(RESPONSE, getCauchoResponse());
if (_servlet != null)
_attributes.put(CONFIG, _servlet.getServletConfig());
if (getSession() != null)
_attributes.put(SESSION, getSession());
_attributes.put(APPLICATION, getApplication());
}
public Object getAttribute(String name, int scope)
{
switch (scope) {
case PAGE_SCOPE:
return getAttribute(name);
case REQUEST_SCOPE:
return getCauchoRequest().getAttribute(name);
case SESSION_SCOPE:
{
HttpSession session = getSession();
return session != null ? session.getValue(name) : null;
}
case APPLICATION_SCOPE:
return getApplication().getAttribute(name);
default:
throw new IllegalArgumentException();
}
}
public void setAttribute(String name, Object value, int scope)
{
switch (scope) {
case PAGE_SCOPE:
setAttribute(name, value);
break;
case REQUEST_SCOPE:
getCauchoRequest().setAttribute(name, value);
break;
case SESSION_SCOPE:
if (getSession() != null)
getSession().putValue(name, value);
break;
case APPLICATION_SCOPE:
getApplication().setAttribute(name, value);
break;
default:
throw new IllegalArgumentException();
}
}
public void removeAttribute(String name, int scope)
{
if (name == null)
throw new NullPointerException(L.l("removeAttribute must have a non-null name"));
switch (scope) {
case PAGE_SCOPE:
if (name != null)
_attributes.remove(name);
break;
case REQUEST_SCOPE:
getCauchoRequest().removeAttribute(name);
break;
case SESSION_SCOPE:
if (getSession() != null)
getSession().removeValue(name);
break;
case APPLICATION_SCOPE:
getApplication().removeAttribute(name);
break;
default:
throw new IllegalArgumentException();
}
}
public Enumeration getAttributeNames(int scope)
{
switch (scope) {
case PAGE_SCOPE:
return getAttributeNames();
case REQUEST_SCOPE:
return getCauchoRequest().getAttributeNames();
case SESSION_SCOPE:
if (getSession() != null)
return new StringArrayEnum(getSession().getValueNames());
else
return NullEnumeration.create();
case APPLICATION_SCOPE:
return getApplication().getAttributeNames();
default:
throw new IllegalArgumentException();
}
}
public Enumeration getAttributeNamesInScope(int scope)
{
return getAttributeNames(scope);
}
/**
* Finds an attribute in any of the scopes from page to webApp.
*
* @param name the attribute name.
*
* @return the attribute value
*/
public Object findAttribute(String name)
{
Object value;
if ((value = getAttribute(name)) != null)
return value;
HttpServletRequest req = getCauchoRequest();
if (req != null &&
(value = getCauchoRequest().getAttribute(name)) != null)
return value;
HttpSession session = getSession();
if (session != null) {
try {
value = session.getAttribute(name);
} catch (IllegalStateException e) {
// jsp/162e
log.log(Level.FINE, e.toString(), e);
}
if (value != null)
return value;
}
return getServletContext().getAttribute(name);
}
/**
* Return the scope of the named attribute.
*
* @param name the name of the attribute.
*
* @return the scope of the attribute
*/
public int getAttributesScope(String name)
{
if (getAttribute(name) != null)
return PAGE_SCOPE;
if (getCauchoRequest().getAttribute(name) != null)
return REQUEST_SCOPE;
HttpSession session = getSession();
if (session != null && session.getValue(name) != null)
return SESSION_SCOPE;
if (getApplication().getAttribute(name) != null)
return APPLICATION_SCOPE;
return 0;
}
/**
* Sets the attribute map.
*/
public Map<String,Object> setMap(Map<String,Object> map)
{
Map<String,Object> oldMap = _attributes;
_attributes = map;
return oldMap;
}
/**
* Returns the current writer.
*/
public JspWriter getOut()
{
return _out;
}
/**
* Pushes a new BodyContent onto the JspWriter stack.
*/
public BodyContent pushBody()
{
BodyContentImpl body;
if (_bodyOut != null) {
body = _bodyOut;
_bodyOut = null;
}
else
body = BodyContentImpl.allocate();
CauchoResponse response = getCauchoResponse();
body.init(_out);
_out = body;
response.setForbidForward(true);
try {
_bodyResponseStream.flushBuffer();
} catch (IOException e) {
}
_bodyResponseStream.start();
_bodyResponseStream.setWriter(body);
_bodyResponseStream.setEncoding(response.getCharacterEncoding());
response.setResponseStream(_bodyResponseStream);
return body;
}
/**
* Pushes a new writer onto the JspWriter stack.
*/
public JspWriter pushBody(Writer writer)
{
if (writer == _out)
return null;
JspWriter oldWriter = _out;
StreamJspWriter jspWriter;
jspWriter = new StreamJspWriter();
jspWriter.init(_out, writer);
_out = jspWriter;
getCauchoResponse().setForbidForward(true);
_bodyResponseStream.setWriter(writer);
getCauchoResponse().setResponseStream(_bodyResponseStream);
return oldWriter;
}
/**
* Pops the BodyContent from the JspWriter stack.
*
* @return the enclosing writer
*/
@Override
public JspWriter popBody()
{
BodyContentImpl bodyOut = (BodyContentImpl) _out;
_out = bodyOut.getEnclosingWriter();
try {
_bodyResponseStream.flushBuffer();
//if (_writeStream != null)
// _writeStream.flushBuffer();
} catch (IOException e) {
log.log(Level.WARNING, e.toString(), e);
}
if (_out instanceof StreamJspWriter) {
StreamJspWriter writer = (StreamJspWriter) _out;
_bodyResponseStream.setWriter(writer.getWriter());
if (_response != null)
_bodyResponseStream.setEncoding(_response.getCharacterEncoding());
}
else if (_out instanceof JspWriterAdapter) {
if (getCauchoResponse() != null) {
getCauchoResponse().setResponseStream(_responseStream);
getCauchoResponse().setForbidForward(false);
}
}
else if (_out instanceof BodyContentImpl) {
BodyContentImpl body = (BodyContentImpl) _out;
_bodyResponseStream.setWriter(body.getWriter());
if (_response != null)
_bodyResponseStream.setEncoding(_response.getCharacterEncoding());
}
return _out;
}
/**
* Pops the BodyContent from the JspWriter stack.
*
* @return the enclosing writer
*/
public JspWriter popAndReleaseBody()
throws IOException
{
BodyContentImpl body = (BodyContentImpl) getOut();
JspWriter out = popBody();
releaseBody(body);
return out;
}
public void releaseBody(BodyContentImpl out)
throws IOException
{
if (_bodyOut == null) {
out.releaseNoFree();
_bodyOut = out;
}
else
out.release();
}
/**
* Pops the BodyContent from the JspWriter stack.
*
* @param oldWriter the old writer
*/
public JspWriter setWriter(JspWriter oldWriter)
{
if (_out == oldWriter)
return oldWriter;
/*
if (_out instanceof FlushBuffer) {
try {
((FlushBuffer) _out).flushBuffer();
} catch (IOException e) {
}
}
*/
try {
if (_out instanceof FlushBuffer)
((FlushBuffer) _out).flushBuffer();
} catch (IOException e) {
}
_out = oldWriter;
// jsp/18eg
if (_out instanceof StreamJspWriter) {
StreamJspWriter writer = (StreamJspWriter) _out;
_bodyResponseStream.setWriter(writer.getWriter());
}
else if (_out instanceof JspWriterAdapter) {
if (getCauchoResponse() != null) {
getCauchoResponse().setResponseStream(_responseStream);
getCauchoResponse().setForbidForward(false);
}
}
else if (_out instanceof BodyContentImpl) {
BodyContentImpl body = (BodyContentImpl) _out;
_bodyResponseStream.setWriter(body.getWriter());
}
return oldWriter;
// getCauchoResponse().setWriter(_os);
}
/**
* Returns the top writer.
*/
public PrintWriter getTopWriter()
throws IOException
{
CauchoResponse response = getCauchoResponse();
AbstractResponseStream currentStream = response.getResponseStream();
response.setResponseStream(_responseStream);
try {
return response.getWriter();
} finally {
response.setResponseStream(currentStream);
}
}
/**
* Returns the response output stream.
*/
ServletOutputStream getOutputStream()
{
try {
return getCauchoResponse().getOutputStream();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* Returns the underlying servlet for the page.
*/
public Object getPage()
{
return _servlet;
}
/**
* Returns the servlet request for the page.
*/
@Override
public HttpServletRequest getRequest()
{
return _request;
}
/**
* Returns the servlet response for the page.
*/
@Override
public HttpServletResponse getResponse()
{
return getCauchoResponse();
}
/**
* Returns the servlet response for the page.
*/
public CauchoResponse getCauchoResponse()
{
return _response;
}
/**
* Returns the servlet response for the page.
*/
public HttpServletRequest getCauchoRequest()
{
return _request;
}
public HttpSession getSession()
{
if (_session == null) {
HttpServletRequest req = getCauchoRequest();
if (req != null)
_session = req.getSession(false);
}
return _session;
}
/**
* Returns the session, throwing an IllegalStateException if it's
* not available.
*/
public HttpSession getSessionScope()
{
if (_session == null)
_session = getCauchoRequest().getSession(false);
if (_session == null)
throw new IllegalStateException(L.l("session is not available"));
return _session;
}
public ServletConfig getServletConfig()
{
return _servlet.getServletConfig();
}
/**
* Returns the page's servlet context.
*/
public ServletContext getServletContext()
{
return _webApp;
}
/**
* Returns the page's webApp.
*/
public WebApp getApplication()
{
return _webApp;
}
/**
* Returns the page's error page.
*/
public String getErrorPage()
{
return _errorPage;
}
/**
* Sets the page's error page.
*/
public void setErrorPage(String errorPage)
{
_errorPage = errorPage;
}
public Exception getException()
{
return (Exception) getThrowable();
}
/**
* Returns the Throwable stored by the error page.
*/
public Throwable getThrowable()
{
Throwable exn = (Throwable) getCauchoRequest().getAttribute(EXCEPTION);
if (exn == null)
exn = (Throwable) getCauchoRequest().getAttribute("javax.servlet.error.exception_type");
if (exn == null)
exn = (Throwable) getCauchoRequest().getAttribute("javax.servlet.jsp:jspException");
return exn;
}
public void include(String relativeUrl)
throws ServletException, IOException
{
include(relativeUrl, false);
}
/**
* Include another servlet into the current output stream.
*
* @param relativeUrl url relative to the current request.
*/
public void include(String relativeUrl, String query, boolean flush)
throws ServletException, IOException
{
if (! "".equals(query)) {
relativeUrl = encode(relativeUrl, query);
}
include(relativeUrl, flush);
}
public StringBuilder encode(String relativeUrl)
{
StringBuilder sb = new StringBuilder();
sb.append(relativeUrl);
if (relativeUrl.indexOf('?') >= 0)
sb.append('&');
else
sb.append('?');
return sb;
}
private String encode(String relativeUrl, String query)
{
StringBuilder sb = new StringBuilder();
sb.append(relativeUrl);
sb = encode(sb, query);
return sb.toString();
}
public StringBuilder encode(StringBuilder sb, String query)
{
int len = query.length();
for (int i = 0; i < len; i++) {
char ch = query.charAt(i);
switch (ch) {
case ' ':
sb.append('+');
break;
case '+':
sb.append("%2b");
break;
case '%':
sb.append("%25");
break;
case '&':
sb.append("%3D");
break;
default:
sb.append(ch);
break;
}
}
return sb;
}
/**
* Include another servlet into the current output stream.
*
* @param relativeUrl url relative to the current request.
*/
public void include(String relativeUrl, boolean flush)
throws ServletException, IOException
{
RequestDispatcher rd = null;
HttpServletRequest req = (HttpServletRequest) getCauchoRequest();
HttpServletResponse res = (HttpServletResponse) getResponse();
if (relativeUrl != null && ! relativeUrl.startsWith("/")) {
String path = RequestAdapter.getPageServletPath(req);
String pathInfo = RequestAdapter.getPagePathInfo(req);
String servletPath = req.getServletPath();
if (path != null) {
// jsp/15du vs jsp/15lk (tck)
if (pathInfo != null && ! path.equals(servletPath))
path += pathInfo;
}
else if (pathInfo != null)
path = pathInfo;
else
path = "/";
int p = path.lastIndexOf('/');
if (p >= 0) {
_cb.clear();
_cb.append(path, 0, p + 1);
_cb.append(relativeUrl);
rd = getServletContext().getRequestDispatcher(_cb.toString());
}
}
if (rd == null)
rd = req.getRequestDispatcher(relativeUrl);
if (rd == null)
throw new ServletException(L.l("unknown including page `{0}'.",
relativeUrl));
// the FlushBuffer needs to happen to deal with OpenSymphony (Bug#1710)
// jsp/17e9, 15lc, 15m4
if (! flush) {
}
else if (_out instanceof FlushBuffer)
((FlushBuffer) _out).flushBuffer();
else if (flush)
_out.flush();
rd.include(req, res);
}
/**
* Include another servlet into the current output stream.
*
* @param relativeUrl url relative to the current request.
*/
public void forward(String relativeUrl, String query)
throws ServletException, IOException
{
if (! "".equals(query))
relativeUrl = encode(relativeUrl, query);
forward(relativeUrl);
}
/**
* Forward a subrequest relative to the current url. Absolute URLs
* are relative to the context root.
*
* @param relativeUrl url relative to the current file
*/
public void forward(String relativeUrl)
throws ServletException, IOException
{
if (_bufferSize == 0) {
// jsp/15m3, tck
if (_out instanceof FlushBuffer)
((FlushBuffer) _out).flushBuffer();
else
_out.flush();
}
RequestDispatcher rd = null;
HttpServletRequest req = (HttpServletRequest) getCauchoRequest();
HttpServletResponse res = (HttpServletResponse) getResponse();
if (res.isCommitted() && ! _webApp.isAllowForwardAfterFlush())
throw new IllegalStateException(L.l("can't forward after writing HTTP headers"));
else if (! _webApp.isAllowForwardAfterFlush())
_out.clear();
//jsp/183n jsp/18kl jsp/1625
while (_out instanceof BodyContentImpl) {
popBody();
}
if (relativeUrl != null && ! relativeUrl.startsWith("/")) {
String servletPath = RequestAdapter.getPageServletPath(req);
int p = servletPath.lastIndexOf('/');
if (p >= 0) {
_cb.clear();
_cb.append(servletPath, 0, p + 1);
_cb.append(relativeUrl);
rd = getServletContext().getRequestDispatcher(_cb.toString());
}
}
if (rd == null)
rd = req.getRequestDispatcher(relativeUrl);
if (rd == null)
throw new ServletException(L.l("unknown forwarding page: `{0}'",
relativeUrl));
// rd.forward(req, res);
rd.forward(req, _servletResponse);
//_out.close();
_responseStream.close();
}
/**
* Handles an exception caught in the JSP page.
*
* @param e the caught exception
*/
public void handlePageException(Exception e)
throws ServletException, IOException
{
handlePageException((Throwable) e);
}
/**
* Handles an exception caught in the JSP page.
*
* @param e the caught exception
*/
public void handlePageException(Throwable e)
throws ServletException, IOException
{
if (e instanceof SkipPageException)
return;
HttpServletRequest request = getCauchoRequest();
request.setAttribute("javax.servlet.jsp.jspException", e);
CauchoResponse response = getCauchoResponse();
response.setForbidForward(false);
response.setResponseStream(_responseStream);
response.killCache();
response.setNoCache(true);
_hasException = true;
if (e instanceof ClientDisconnectException)
throw (ClientDisconnectException) e;
if (! (_servlet instanceof Page)) {
}
else if (getApplication() == null
|| getApplication().getJsp() == null
|| ! getApplication().getJsp().isRecompileOnError()) {
}
else if (e instanceof OutOfMemoryError) {
}
else if (e instanceof Error) {
try {
Path workDir = getApplication().getAppDir().lookup("WEB-INF/work");
String className = _servlet.getClass().getName();
Path path = workDir.lookup(className.replace('.', '/') + ".class");
log.warning("Removing " + path + " due to " + e);
path.remove();
} catch (Exception e1) {
}
Page page = (Page) _servlet;
page._caucho_unload();
if (! page.isDead()) {
page.setDead();
page.destroy();
}
}
_topOut.clearBuffer();
if (_errorPage != null) {
if (log.isLoggable(Level.FINER)) {
log.log(Level.FINER, e.toString(), e);
}
else if (e instanceof DisplayableException) {
log.warning(e.getMessage());
}
else {
log.log(Level.WARNING, e.toString(), e);
}
getCauchoRequest().setAttribute(EXCEPTION, e);
getCauchoRequest().setAttribute("javax.servlet.error.exception", e);
getCauchoRequest().setAttribute("javax.servlet.error.exception_type", e);
getCauchoRequest().setAttribute("javax.servlet.error.request_uri",
getCauchoRequest().getRequestURI());
try {
RequestDispatcher rd = getCauchoRequest().getRequestDispatcher(_errorPage);
if (rd instanceof RequestDispatcherImpl) {
getCauchoResponse().setHasError(true);
((RequestDispatcherImpl) rd).error(getCauchoRequest(), getCauchoResponse());
}
else {
if (rd != null) {
getCauchoResponse().killCache();
getCauchoResponse().setNoCache(true);
rd.forward(getCauchoRequest(), getCauchoResponse());
}
else {
log.log(Level.FINE, e.toString(), e);
throw new ServletException(L.l("`{0}' is an unknown error page. The JSP errorPage directive must refer to a valid URL relative to the current web-app.",
_errorPage));
}
}
} catch (FileNotFoundException e2) {
log.log(Level.WARNING, e.toString(), e2);
throw new ServletException(L.l("`{0}' is an unknown error page. The JSP errorPage directive must refer to a valid URL relative to the current web-app.",
_errorPage));
} catch (IOException e2) {
log.log(Level.FINE, e.toString(), e2);
}
return;
}
/*
if (_servlet instanceof Page && ! (e instanceof LineMapException)) {
LineMap lineMap = ((Page) _servlet)._caucho_getLineMap();
if (lineMap != null)
e = new JspLineException(e, lineMap);
}
*/
if (e instanceof ServletException) {
throw (ServletException) e;
}
else if (e instanceof IOException) {
throw (IOException) e;
}
else if (e instanceof RuntimeException) {
throw (RuntimeException) e;
}
else if (e instanceof Error) {
throw (Error) e;
}
else {
throw new ServletException(e);
}
}
/**
* Returns the error data
*/
public ErrorData getErrorData()
{
String uri = (String) getCauchoRequest().getAttribute(AbstractHttpRequest.ERROR_URI);
if (uri == null)
return null;
Integer status = (Integer) getCauchoRequest().getAttribute(AbstractHttpRequest.STATUS_CODE);
return new ErrorData(getThrowable(),
status == null ? 0 : status.intValue(),
(String) getCauchoRequest().getAttribute(AbstractHttpRequest.ERROR_URI),
(String) getCauchoRequest().getAttribute(AbstractHttpRequest.SERVLET_NAME));
}
/**
* Returns the variable resolver
*/
public javax.servlet.jsp.el.VariableResolver getVariableResolver()
{
return this;
}
/**
* Returns the expression evaluator
*/
public ExpressionEvaluator getExpressionEvaluator()
{
if (_expressionEvaluator == null)
_expressionEvaluator = new ExpressionEvaluatorImpl(getELContext());
return _expressionEvaluator;
}
/**
* Returns the expression evaluator
*/
public ELContext getELContext()
{
if (_elContext != null)
return _elContext;
if (_elContextValue == null) {
WebApp webApp = getApplication();
JspApplicationContextImpl jspContext = webApp.getJspApplicationContext();
if (_elResolver == null) {
ELResolver[] resolverArray = jspContext.getELResolverArray();
_elResolver = new PageContextELResolver(this, resolverArray);
}
if (_functionMapper == null)
_functionMapper = new PageFunctionMapper();
if (_variableMapper == null)
_variableMapper = new PageVariableMapper();
_elContextValue = new PageELContext();
if (_elContextListeners == null)
_elContextListeners = jspContext.getELListenerArray();
}
_elContext = _elContextValue;
if (_elContextListeners.length > 0) {
ELContextEvent event = new ELContextEvent(_elContext);
for (int i = 0; i < _elContextListeners.length; i++) {
_elContextListeners[i].contextCreated(event);
}
}
return _elContext;
}
/**
* Given a relative url, return the absolute url.
*
* @param value the relative url
*
* @return the absolute url.
*/
private String getRelativeUrl(String value)
{
if (value.length() > 0 && value.charAt(0) == '/')
return value;
ServletContext context = getServletContext();
String contextPath = RequestAdapter.getPageContextPath(getCauchoRequest());
String uri = RequestAdapter.getPageURI(getCauchoRequest());
String relPath = uri.substring(contextPath.length());
int p = relPath.lastIndexOf('/');
String urlPwd = p <= 0 ? "/" : relPath.substring(0, p + 1);
return urlPwd + value;
}
/**
* Releases the context.
*/
public void release()
{
try {
_servlet = null;
if (_attributes.size() > 0)
_attributes.clear();
/* XXX:
if (! autoFlush && response instanceof Response)
((Response) response).setDisableAutoFlush(false);
*/
getCauchoResponse().setResponseStream(_responseStream);
// getCauchoResponse().setFlushBuffer(null);
_request = null;
_webApp = null;
_session = null;
while (_out instanceof AbstractJspWriter) {
if (_out instanceof AbstractJspWriter)
_out = ((AbstractJspWriter) _out).popWriter();
}
JspWriter out = _out;
_out = null;
_topOut = null;
_nodeEnv = null;
if (_elContext != null)
_elContext.clear();
_jspOutputStream.release();
AbstractResponseStream responseStream = _responseStream;
_responseStream = null;
ToCharResponseAdapter resAdapt = _responseAdapter;
_responseAdapter = null;
if (resAdapt != null) {
// jsp/15l3
resAdapt.finish();
//_responseAdapter.close();
ToCharResponseAdapter.free(resAdapt);
}
/*
// server/137q
if (! _hasException && responseStream != null)
responseStream.close();
*/
_servletResponse = null;
_response = null;
} catch (IOException e) {
_out = null;
}
}
/**
* Returns the localized message appropriate for the current context.
*/
public String getLocalizedMessage(String key,
Object []args,
String basename)
{
Object lc = basename;
if (lc == null)
lc = getAttribute("caucho.bundle");
if (lc == null)
lc = Config.find(this, Config.FMT_LOCALIZATION_CONTEXT);
return getLocalizedMessage(lc, key, args, basename);
}
/**
* Returns the localized message appropriate for the current context.
*/
public String getLocalizedMessage(Object lc,
String key,
Object []args,
String basename)
{
String bundleString = null;
// jsp/1c51, jsp/1c54
String prefix = (String) getAttribute("caucho.bundle.prefix");
// jsp/1c3x
if (key == null)
key = "";
if (prefix != null)
key = prefix + key;
if (lc == null) {
lc = basename;
if (lc == null || "".equals(lc))
lc = getAttribute("caucho.bundle");
if (lc == null)
lc = Config.find(this, Config.FMT_LOCALIZATION_CONTEXT);
}
Locale locale = null;
if (lc instanceof LocalizationContext) {
ResourceBundle bundle = ((LocalizationContext) lc).getResourceBundle();
locale = ((LocalizationContext) lc).getLocale();
try {
if (bundle != null)
bundleString = bundle.getString(key);
} catch (Exception e) {
}
}
else if (lc instanceof String) {
LocalizationContext loc = getBundle((String) lc);
locale = loc.getLocale();
ResourceBundle bundle = loc.getResourceBundle();
try {
if (bundle != null)
bundleString = bundle.getString(key);
} catch (Exception e) {
}
}
if (bundleString == null)
return "???" + key + "???";
else if (args == null || args.length == 0)
return bundleString;
if (locale == null)
locale = getLocale();
if (locale != null)
return new MessageFormat(bundleString, locale).format(args);
else
return new MessageFormat(bundleString).format(args);
}
/**
* Returns the localized message appropriate for the current context.
*/
public LocalizationContext getBundle(String name)
{
Object localeObj = Config.find(this, Config.FMT_LOCALE);
LocalizationContext bundle = null;
BundleManager manager = getBundleManager();
if (localeObj instanceof Locale) {
Locale locale = (Locale) localeObj;
bundle = manager.getBundle(name, locale);
}
else if (localeObj instanceof String) {
Locale locale = getLocale((String) localeObj, null);
bundle = manager.getBundle(name, locale);
}
else {
String acceptLanguage = getCauchoRequest().getHeader("Accept-Language");
if (acceptLanguage != null) {
String cacheKey = name + acceptLanguage;
bundle = manager.getBundle(name, cacheKey, getCauchoRequest().getLocales());
}
}
if (bundle != null)
return bundle;
Object fallback = Config.find(this, Config.FMT_FALLBACK_LOCALE);
if (fallback instanceof Locale) {
Locale locale = (Locale) fallback;
bundle = manager.getBundle(name, locale);
}
else if (fallback instanceof String) {
String localeName = (String) fallback;
Locale locale = getLocale(localeName, null);
bundle = manager.getBundle(name, locale);
}
if (bundle != null)
return bundle;
bundle = manager.getBundle(name);
if (bundle != null)
return bundle;
else {
return BundleManager.NULL_BUNDLE;
}
}
/**
* Returns the currently active locale.
*/
public Locale getLocale()
{
if (_locale != null)
return _locale;
_locale = getLocaleImpl();
if (_locale != null)
getResponse().setLocale(_locale);
return _locale;
}
/**
* Returns the currently active locale.
*/
private Locale getLocaleImpl()
{
Object localeObj = Config.find(this, Config.FMT_LOCALIZATION_CONTEXT);
LocalizationContext lc;
Locale locale = null;
if (localeObj instanceof LocalizationContext) {
lc = (LocalizationContext) localeObj;
locale = lc.getLocale();
if (locale != null)
return locale;
}
localeObj = Config.find(this, Config.FMT_LOCALE);
if (localeObj instanceof Locale)
return (Locale) localeObj;
else if (localeObj instanceof String)
return getLocale((String) localeObj, null);
lc = (LocalizationContext) getAttribute("caucho.bundle");
if (lc != null)
locale = lc.getLocale();
if (locale != null)
return locale;
String acceptLanguage = getCauchoRequest().getHeader("Accept-Language");
if (acceptLanguage != null) {
Enumeration e = getCauchoRequest().getLocales();
if (e != null && e.hasMoreElements())
locale = (Locale) e.nextElement();
}
localeObj = Config.find(this, Config.FMT_FALLBACK_LOCALE);
if (localeObj instanceof Locale)
return (Locale) localeObj;
else if (localeObj instanceof String)
return getLocale((String) localeObj, null);
else
return null;
}
public static Locale getLocale(String value, String variant)
{
Locale locale = null;
int len = value.length();
CharBuffer cb = new CharBuffer();
int i = 0;
char ch = 0;
for (; i < len && (ch = value.charAt(i)) != '_' && ch != '-'; i++)
cb.append(ch);
String language = cb.toString();
if (ch == '_' || ch == '-') {
cb.clear();
for (i++; i < len && (ch = value.charAt(i)) != '_' && ch != '-'; i++)
cb.append(ch);
String country = cb.toString();
if (variant != null && ! variant.equals(""))
return new Locale(language, country, variant);
else
return new Locale(language, country);
}
else if (variant != null && ! variant.equals(""))
return new Locale(language, "", variant);
else
return new Locale(language, "");
}
public static void printBody(BodyContentImpl body, boolean isEscaped)
throws IOException
{
JspWriter out = body.getEnclosingWriter();
CharBuffer string = body.getCharBuffer();
char []cBuf = string.getBuffer();
int length = string.length() - 1;
for (; length >= 0; length--) {
char ch = cBuf[length];
if (ch != ' ' && ch != '\n' && ch != '\t' && ch != '\r')
break;
}
length++;
int i;
for (i = 0; i < length; i++) {
char ch = cBuf[i];
if (ch != ' ' && ch != '\n' && ch != '\t' && ch != '\r')
break;
}
if (! isEscaped) {
out.write(cBuf, i, length - i);
return;
}
for (; i < length; i++) {
char ch = cBuf[i];
switch (ch) {
case '<':
out.write("<");
break;
case '>':
out.write(">");
break;
case '&':
out.write("&");
break;
case '\'':
out.write("'");
break;
case '"':
out.write(""");
break;
default:
out.write((char) ch);
break;
}
}
}
/**
* Evaluates the fragment, returing the string value.
*/
public String invoke(JspFragment fragment)
throws JspException, IOException
{
if (fragment == null)
return "";
BodyContentImpl body = (BodyContentImpl) pushBody();
try {
fragment.invoke(body);
return body.getString();
} finally {
popBody();
body.release();
}
}
/**
* Evaluates the fragment, returing the string value.
*/
public String invokeTrim(JspFragment fragment)
throws JspException, IOException
{
if (fragment == null)
return "";
BodyContentImpl body = (BodyContentImpl) pushBody();
try {
fragment.invoke(body);
return body.getTrimString();
} finally {
popBody();
body.release();
}
}
/**
* Evaluates the fragment, returing a reader
*/
public Reader invokeReader(JspFragment fragment)
throws JspException, IOException
{
if (fragment == null)
return null;
BodyContentImpl body = (BodyContentImpl) pushBody();
try {
fragment.invoke(body);
return body.getReader();
} finally {
popBody();
body.release();
}
}
/**
* Parses a boolean value.
*/
static public boolean toBoolean(String value)
{
if (value == null)
return false;
else if (value.equalsIgnoreCase("true"))
return true;
else if (value.equalsIgnoreCase("false"))
return false;
else
return value.trim().equalsIgnoreCase("true");
}
/**
* Set/Remove a page attribute.
*/
public void defaultSetOrRemove(String var, Object value)
{
if (value != null)
putAttribute(var, value);
else
removeAttribute(var);
}
/**
* Set/Remove a page attribute.
*/
public void pageSetOrRemove(String var, Object value)
{
if (value != null)
_attributes.put(var, value);
else
_attributes.remove(var);
}
/**
* Set/Remove a request attribute.
*/
public void requestSetOrRemove(String var, Object value)
{
if (value != null)
getCauchoRequest().setAttribute(var, value);
else
getCauchoRequest().removeAttribute(var);
}
/**
* Set/Remove a session attribute.
*/
public void sessionSetOrRemove(String var, Object value)
{
if (value != null)
getSession().setAttribute(var, value);
else
getSession().removeAttribute(var);
}
/**
* Set/Remove an webApp attribute.
*/
public void applicationSetOrRemove(String var, Object value)
{
if (value != null)
getApplication().setAttribute(var, value);
else
getApplication().removeAttribute(var);
}
/**
* Returns true if the EL ignores exceptions
*/
public boolean isIgnoreException()
{
JspPropertyGroup jsp = getApplication().getJsp();
return (jsp == null || jsp.isIgnoreELException());
}
/**
* Returns the XPath variable environment corresponding to this page
*/
public VarEnv getVarEnv()
{
if (_varEnv == null)
_varEnv = new PageVarEnv();
return _varEnv;
}
/**
* Returns the XPath node environment corresponding to this page
*/
public Node getNodeEnv()
{
return _nodeEnv;
}
/**
* Returns the XPath node environment corresponding to this page
*/
public void setNodeEnv(Node node)
{
_nodeEnv = node;
}
/**
* Creates an expression.
*/
public ValueExpression createExpr(ValueExpression expr,
String exprString,
Class type)
{
if (_variableMapper == null || _variableMapper.isConstant())
return expr;
return JspUtil.createValueExpression(getELContext(), type, exprString);
}
/**
* Finds an attribute in any of the scopes from page to webApp.
*
* @param name the attribute name.
*
* @return the attribute value
*/
public Object resolveVariable(String name)
throws javax.el.ELException
{
Object value = findAttribute(name);
if (value != null)
return value;
ELContext elContext = getELContext();
/*
if (_elContext == null)
_elContext = EL.getEnvironment();
*/
return elContext.getELResolver().getValue(elContext, null, name);
}
/**
* Returns the bundle manager.
*/
private BundleManager getBundleManager()
{
if (_bundleManager == null)
_bundleManager = BundleManager.create();
return _bundleManager;
}
/**
* Represents the XPath environment for this page.
*/
public class PageVarEnv extends VarEnv {
/**
* Returns the value corresponding to the name.
*/
public Object getValue(String name)
{
Object value = findAttribute(name);
if (value != null)
return value;
int p = name.indexOf(':');
if (p < 0) {
// jsp/1m43, TCK
throw new javax.el.ELException(L.l("'{0}' is an unknown variable", name));
}
String prefix = name.substring(0, p);
String suffix = name.substring(p + 1);
if (prefix.equals("param"))
return getCauchoRequest().getParameter(suffix);
else if (prefix.equals("header"))
return ((HttpServletRequest) getCauchoRequest()).getHeader(suffix);
else if (prefix.equals("cookie")) {
Cookie cookie;
HttpServletRequest request = (HttpServletRequest) getCauchoRequest();
if (request instanceof CauchoRequest)
cookie = ((CauchoRequest) request).getCookie(suffix);
else
cookie = null;
if (cookie != null)
return cookie.getValue();
else
return null;
}
else if (prefix.equals("initParam"))
return getApplication().getInitParameter(suffix);
else if (prefix.equals("pageScope")) {
return getAttribute(suffix);
}
else if (prefix.equals("requestScope"))
return getCauchoRequest().getAttribute(suffix);
else if (prefix.equals("sessionScope"))
return getSession().getAttribute(suffix);
else if (prefix.equals("applicationScope"))
return getApplication().getAttribute(suffix);
else
return null;
}
}
static class StringArrayEnum implements Enumeration
{
private int _index;
private String []_values;
StringArrayEnum(String []values)
{
_values = values;
}
public boolean hasMoreElements()
{
return _index < _values.length;
}
public Object nextElement()
{
return _values[_index++];
}
}
public class PageELContext extends ServletELContext {
private HashMap<Class,Object> _contextMap;
public PageELContext()
{
}
@Override
public Object getContext(Class key)
{
if (key == JspContext.class)
return PageContextImpl.this;
if (key == null)
throw new NullPointerException();
else if (_contextMap != null)
return _contextMap.get(key);
else
return null;
}
@Override
public void putContext(Class key, Object contextObject)
{
if (key == null)
throw new NullPointerException();
if (_contextMap == null)
_contextMap = new HashMap<Class,Object>(8);
_contextMap.put(key, contextObject);
}
public void clear()
{
if (_contextMap != null)
_contextMap.clear();
setLocale(null);
}
public PageContextImpl getPageContext()
{
return PageContextImpl.this;
}
@Override
public ServletContext getApplication()
{
return PageContextImpl.this.getApplication();
}
@Override
public Object getApplicationScope()
{
return new PageContextAttributeMap(PageContextImpl.this,
APPLICATION_SCOPE);
}
@Override
public HttpServletRequest getRequest()
{
return (HttpServletRequest) PageContextImpl.this.getRequest();
}
@Override
public Object getRequestScope()
{
return new PageContextAttributeMap(PageContextImpl.this,
REQUEST_SCOPE);
}
@Override
public Object getSessionScope()
{
return new PageContextAttributeMap(PageContextImpl.this,
SESSION_SCOPE);
}
public ELResolver getELResolver()
{
return _elResolver;
}
public javax.el.FunctionMapper getFunctionMapper()
{
return _functionMapper;
}
public javax.el.VariableMapper getVariableMapper()
{
return _variableMapper;
}
public String toString()
{
return getClass().getSimpleName() + "[" + PageContextImpl.this + "]";
}
}
public class PageFunctionMapper extends javax.el.FunctionMapper {
public Method resolveFunction(String prefix, String localName)
{
if (_functionMap != null)
return _functionMap.get(prefix + ":" + localName);
else
return null;
}
}
public class PageVariableMapper extends ImplicitVariableMapper {
private HashMap<String,ValueExpression> _map;
final boolean isConstant()
{
return _map == null || _map.size() == 0;
}
public ValueExpression resolveVariable(String var)
{
if (_map != null) {
ValueExpression expr = _map.get(var);
if (expr != null)
return expr;
}
Object value = PageContextImpl.this.resolveVariable(var);
if (value instanceof ValueExpression)
return (ValueExpression) value;
ValueExpression expr;
expr = super.resolveVariable(var);
return expr;
}
public ValueExpression setVariable(String var,
ValueExpression expr)
{
// ValueExpression oldValue = getVariable(var);
if (_map == null) {
_map = new HashMap<String,ValueExpression>();
}
_map.put(var, expr);
return expr;
}
public String toString()
{
return getClass().getSimpleName() + "[" + PageContextImpl.this + "]";
}
}
}