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/*
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
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* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
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*
*/
package com.sun.grizzly.tcp;
import com.sun.grizzly.util.LoggerUtils;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import com.sun.grizzly.util.buf.ByteChunk;
import com.sun.grizzly.util.http.MimeType;
import java.util.concurrent.locks.ReentrantLock;
import java.util.logging.Logger;
/**
* Simple HTTP based Web Server. Part of this class is from Tomcat sandbox code
* from Costin Manolache.
*
* @author Jeanfrancois Arcand
*/
public class StaticResourcesAdapter implements Adapter {
protected String rootFolder = ".";
protected File webDir = null;
protected ConcurrentHashMap cache
= new ConcurrentHashMap();
protected Logger logger = LoggerUtils.getLogger();
/**
* Commit the 404 response automatically.
*/
protected boolean commitErrorResponse = true;
private ReentrantLock initializedLock = new ReentrantLock();
public StaticResourcesAdapter() {
this(".");
}
public StaticResourcesAdapter(String rootFolder) {
this.rootFolder = rootFolder;
}
public void service(Request req, final Response res) throws Exception {
String uri = req.requestURI().toString();
if (uri.indexOf("..") >= 0) {
res.setStatus(404);
customizedErrorPage(req,res);
return;
}
service(uri, req, res);
}
/**
* Lookup a resource based on the request URI.
* @param uri The request URI
* @param req The request objects
* @param res The response object
* @throws java.lang.Exception
*/
protected void service(String uri, Request req, final Response res)
throws Exception {
FileInputStream fis = null;
try{
if (webDir == null){
try{
initializedLock.lock();
webDir = new File(rootFolder);
try {
rootFolder = webDir.getCanonicalPath();
} catch (IOException e) {
logger.log(Level.WARNING,"service()",e);
}
} finally {
initializedLock.unlock();
}
}
// local file
File resource = cache.get(uri);
if (resource == null){
resource = new File(webDir, uri);
cache.put(uri,resource);
}
if (resource.isDirectory()) {
req.action( ActionCode.ACTION_REQ_LOCAL_ADDR_ATTRIBUTE , null);
res.setStatus(302);
res.setMessage("Moved Temporarily");
res.setHeader("Location", req.scheme() + "://" + req.serverName() + ":" + req.getServerPort()
+ "/index.html");
res.setHeader("Connection", "close");
res.setHeader("Cache-control", "private");
res.sendHeaders();
return;
}
if (!resource.exists()) {
if (getLogger().isLoggable(Level.FINE)){
getLogger().log(Level.FINE,"File not found " + resource);
}
res.setStatus(404);
customizedErrorPage(req,res);
return;
}
res.setStatus(200);
int dot=uri.lastIndexOf(".");
if( dot > 0 ) {
String ext=uri.substring(dot+1);
String ct= MimeType.get(ext);
if( ct!=null) {
res.setContentType(ct);
}
} else {
res.setContentType(MimeType.get("html"));
}
res.setContentLength((int)resource.length());
res.sendHeaders();
/* Workaround Linux NIO bug
* 6427312: (fc) FileChannel.transferTo() throws IOException "system call interrupted"
* 5103988: (fc) FileChannel.transferTo should return -1 for EAGAIN instead throws IOException
* 6253145: (fc) FileChannel.transferTo on Linux fails when going beyond 2GB boundary
* 6470086: (fc) FileChannel.transferTo(2147483647, 1, channel) cause "Value too large" exception
*/
fis = new FileInputStream(resource);
byte b[] = new byte[8192];
ByteChunk chunk = new ByteChunk();
int rd = 0;
while ((rd = fis.read(b)) > 0) {
chunk.setBytes(b, 0, rd);
res.doWrite(chunk);
}
} finally {
if (fis != null){
try{
fis.close();
} catch (IOException ex){}
}
}
}
/**
* Customize the error pahe
* @param req The {@link Request} object
* @param res The {@link Response} object
* @throws java.lang.Exception
*/
protected void customizedErrorPage(Request req,
Response res) throws Exception {
/**
* With Grizzly, we just return a 404 with a simple error message.
*/
res.setMessage("Not Found");
}
public void afterService(Request req, Response res) throws Exception {
if (res.getStatus() == 404 && !commitErrorResponse){
return;
}
try{
req.action( ActionCode.ACTION_POST_REQUEST , null);
}catch (Throwable t) {
logger.log(Level.WARNING,"afterService()",t);
}
res.finish();
req.recycle();
res.recycle();
}
/**
* Not Used.
* @param string
* @param object
*/
public void fireAdapterEvent(String string, Object object) {
}
public String getRootFolder() {
return rootFolder;
}
public void setRootFolder(String newRoot) {
this.rootFolder = newRoot;
webDir = new File(rootFolder);
}
public Logger getLogger() {
return logger;
}
public void setLogger(Logger logger) {
this.logger = logger;
}
}
