/*
* Copyright (c) 1998-2008 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.quercus.servlet;
import com.caucho.quercus.Quercus;
import com.caucho.quercus.QuercusDieException;
import com.caucho.quercus.QuercusErrorException;
import com.caucho.quercus.QuercusExitException;
import com.caucho.quercus.QuercusLineRuntimeException;
import com.caucho.quercus.QuercusRequestAdapter;
import com.caucho.quercus.QuercusRuntimeException;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.QuercusValueException;
import com.caucho.quercus.env.StringValue;
import com.caucho.quercus.page.QuercusPage;
import com.caucho.util.L10N;
import com.caucho.vfs.FilePath;
import com.caucho.vfs.Path;
import com.caucho.vfs.StreamImpl;
import com.caucho.vfs.VfsStream;
import com.caucho.vfs.WriteStream;
import com.caucho.vfs.WriterStreamImpl;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Servlet to call PHP through javax.script.
*/
public class QuercusServletImpl
{
private static final L10N L = new L10N(QuercusServletImpl.class);
private static final Logger log
= Logger.getLogger(QuercusServletImpl.class.getName());
protected Quercus _quercus;
protected ServletConfig _config;
protected ServletContext _servletContext;
/**
* initialize the script manager.
*/
public void setServletConfig(ServletConfig config)
throws ServletException
{
_config = config;
_servletContext = config.getServletContext();
}
public void init()
{
checkServletAPIVersion();
getQuercus().setPwd(new FilePath(_servletContext.getRealPath("/")));
getQuercus().init();
}
/**
* Sets the profiling mode
*/
public void setProfileProbability(double probability)
{
}
/*
* Makes sure the servlet container supports Servlet API 2.4+.
*/
protected void checkServletAPIVersion()
{
int major = _servletContext.getMajorVersion();
int minor = _servletContext.getMinorVersion();
if (major < 2 || major == 2 && minor < 4)
throw new QuercusRuntimeException(L.l("Quercus requires Servlet API 2.4+."));
}
/**
* Service.
*/
public void service(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
Env env = null;
WriteStream ws = null;
try {
Path path = getPath(request);
QuercusPage page;
try {
page = getQuercus().parse(path);
}
catch (FileNotFoundException ex) {
// php/2001
log.log(Level.FINER, ex.toString(), ex);
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
StreamImpl out;
try {
out = new VfsStream(null, response.getOutputStream());
}
catch (IllegalStateException e) {
WriterStreamImpl writer = new WriterStreamImpl();
writer.setWriter(response.getWriter());
out = writer;
}
ws = new WriteStream(out);
ws.setNewlineString("\n");
Quercus quercus = getQuercus();
quercus.setServletContext(_servletContext);
env = quercus.createEnv(page, ws, request, response);
try {
env.start();
env.setScriptGlobal("request", request);
env.setScriptGlobal("response", response);
env.setScriptGlobal("servletContext", _servletContext);
StringValue prepend
= quercus.getIniValue("auto_prepend_file").toStringValue(env);
if (prepend.length() > 0) {
Path prependPath = env.lookup(prepend);
if (prependPath == null)
env.error(L.l("auto_prepend_file '{0}' not found.", prepend));
else {
QuercusPage prependPage = getQuercus().parse(prependPath);
prependPage.executeTop(env);
}
}
env.executeTop();
StringValue append
= quercus.getIniValue("auto_append_file").toStringValue(env);
if (append.length() > 0) {
Path appendPath = env.lookup(append);
if (appendPath == null)
env.error(L.l("auto_append_file '{0}' not found.", append));
else {
QuercusPage appendPage = getQuercus().parse(appendPath);
appendPage.executeTop(env);
}
}
// return;
}
catch (QuercusExitException e) {
throw e;
}
catch (QuercusErrorException e) {
throw e;
}
catch (QuercusLineRuntimeException e) {
log.log(Level.FINE, e.toString(), e);
// return;
}
catch (QuercusValueException e) {
log.log(Level.FINE, e.toString(), e);
ws.println(e.toString());
// return;
}
catch (Throwable e) {
if (response.isCommitted())
e.printStackTrace(ws.getPrintWriter());
ws = null;
throw e;
}
finally {
if (env != null)
env.close();
// don't want a flush for a thrown exception
if (ws != null)
ws.close();
}
}
catch (QuercusDieException e) {
// normal exit
log.log(Level.FINE, e.toString(), e);
}
catch (QuercusExitException e) {
// normal exit
log.log(Level.FINER, e.toString(), e);
}
catch (QuercusErrorException e) {
// error exit
log.log(Level.FINE, e.toString(), e);
}
catch (RuntimeException e) {
throw e;
}
catch (Throwable e) {
throw new ServletException(e);
}
}
Path getPath(HttpServletRequest req)
{
String scriptPath = QuercusRequestAdapter.getPageServletPath(req);
String pathInfo = QuercusRequestAdapter.getPagePathInfo(req);
Path pwd = new FilePath(System.getProperty("user.dir"));
Path path = pwd.lookup(_config.getServletContext().getRealPath(scriptPath));
if (path.isFile())
return path;
// XXX: include
String fullPath;
if (pathInfo != null)
fullPath = scriptPath + pathInfo;
else
fullPath = scriptPath;
return pwd.lookup(_config.getServletContext().getRealPath(fullPath));
}
/**
* Returns true when under the production environment
* Appengine specific.
*/
private boolean isProduction()
{
return _servletContext.getServerInfo().indexOf("Development") < 0;
}
/**
* Returns the Quercus instance.
*/
protected Quercus getQuercus()
{
synchronized (this) {
if (_quercus == null)
_quercus = new Quercus(isProduction());
}
return _quercus;
}
/**
* Gets the script manager.
*/
public void destroy()
{
_quercus.close();
}
}