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/*
* Copyright 1999-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
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package com.sun.enterprise.web.connector.grizzly;
import java.io.IOException;
import java.io.InputStream;
import java.io.InterruptedIOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.nio.channels.SocketChannel;
import java.nio.channels.spi.AbstractSelectableChannel;
import java.util.logging.Level;
import org.apache.coyote.ActionCode;
import org.apache.coyote.ActionHook;
import org.apache.coyote.Adapter;
import org.apache.coyote.Processor;
import org.apache.coyote.Request;
import org.apache.coyote.RequestInfo;
import org.apache.coyote.Response;
import org.apache.coyote.http11.InternalInputBuffer;
import org.apache.coyote.http11.InternalOutputBuffer;
import org.apache.coyote.http11.InputFilter;
import org.apache.coyote.http11.OutputFilter;
import org.apache.coyote.http11.filters.ChunkedInputFilter;
import org.apache.coyote.http11.filters.ChunkedOutputFilter;
import org.apache.coyote.http11.filters.GzipOutputFilter;
import org.apache.coyote.http11.filters.IdentityInputFilter;
import org.apache.coyote.http11.filters.IdentityOutputFilter;
import org.apache.coyote.http11.filters.VoidInputFilter;
import org.apache.coyote.http11.filters.VoidOutputFilter;
import org.apache.coyote.http11.filters.BufferedInputFilter;
import org.apache.tomcat.util.buf.Ascii;
import org.apache.tomcat.util.buf.ByteChunk;
import org.apache.tomcat.util.buf.HexUtils;
import org.apache.tomcat.util.buf.MessageBytes;
import org.apache.tomcat.util.http.FastHttpDateFormat;
import org.apache.tomcat.util.http.MimeHeaders;
import org.apache.tomcat.util.net.SSLSupport;
import javax.management.ObjectName;
/**
* Process HTTP request. This class is based on
* <code>org.apache.coyote.http11.Http11Processor</code>
*
* @author Jean-Francois Arcand
*/
public class DefaultProcessorTask extends TaskBase implements Processor,
ActionHook, ProcessorTask {
/**
* Associated adapter.
*/
protected Adapter adapter = null;
/**
* Request object.
*/
protected Request request = null;
/**
* Response object.
*/
protected Response response = null;
/**
* Input.
*/
protected InternalInputBuffer inputBuffer = null;
/**
* Output.
*/
protected InternalOutputBuffer outputBuffer = null;
/**
* State flag.
*/
protected boolean started = false;
/**
* Error flag.
*/
protected boolean error = false;
/**
* Keep-alive.
*/
protected boolean keepAlive = true;
/**
* Connection: value
*/
protected boolean connectionHeaderValueSet = false;
/**
* HTTP/1.1 flag.
*/
protected boolean http11 = true;
/**
* HTTP/0.9 flag.
*/
protected boolean http09 = false;
/**
* Content delimitator for the request (if false, the connection will
* be closed at the end of the request).
*/
protected boolean contentDelimitation = true;
/**
* SSL information.
*/
protected SSLSupport sslSupport;
/**
* Socket associated with the current connection.
*/
protected Socket socket;
/**
* Remote Address associated with the current connection.
*/
protected String remoteAddr = null;
/**
* Remote Host associated with the current connection.
*/
protected String remoteHost = null;
/**
* Local Host associated with the current connection.
*/
protected String localName = null;
/**
* Local port to which the socket is connected
*/
protected int localPort = -1;
/**
* Remote port to which the socket is connected
*/
protected int remotePort = -1;
/**
* The local Host address.
*/
protected String localAddr = null;
/**
* Maximum timeout on uploads. 5 minutes as in Apache HTTPD server.
*/
protected int uploadTimeout = 300000;
/**
* Max post size.
*/
protected int maxPostSize = 2 * 1024 * 1024;
/**
* Host name (used to avoid useless B2C conversion on the host name).
*/
protected char[] hostNameC = new char[0];
/**
* The <code>taskContext</code> associated with this object. The
* <code>taskContext</code> contains information about the current
* connection.
*/
protected TaskContext taskContext;
/**
* The <code>TaskEvent</code> associated with this task.
*/
protected TaskEvent<TaskContext> taskEvent;
/**
* Has the request associated with this <code>ProcessorTask</code> been
* registered with the <code>RequestGroupInfo</code>
*/
protected boolean hasRequestInfoRegistered = false;
/**
* Default HTTP header buffer size.
*/
protected int maxHttpHeaderSize = Constants.DEFAULT_HEADER_SIZE;
/**
* The number of requests <code>ProcessorTask</code> has proceeded.
*/
protected static int requestCount;
/**
* The input request buffer size.
*/
protected int requestBufferSize = Constants.DEFAULT_REQUEST_BUFFER_SIZE;
/**
* ObjectName under which this <code>ProcessorTask</code> will be
* JMX-registered if monitoring has been turned on
*/
protected ObjectName oname;
/**
* Allow client of this class to force connection closing.
*/
protected boolean dropConnection = false;
/**
* The current keep-alive count left before closing the connection.
*/
protected int keepAliveLeft;
/**
* The handler used by this <code>Task</code> to manipulate the request.
*/
protected Handler handler;
/**
* The default response-type
*/
protected String defaultResponseType = Constants.DEFAULT_RESPONSE_TYPE;
/**
* The forced request-type
*/
protected String forcedRequestType = Constants.FORCED_REQUEST_TYPE;
/**
* Is asynchronous mode enabled?
*/
protected boolean asyncExecution = false;
/**
* The code>RequestInfo</code> used to gather stats.
*/
protected RequestInfo requestInfo;
/**
* When the asynchronous mode is enabled, the execution of this object
* will be delegated to the <code>AsyncHandler</code>
*/
protected AsyncHandler asyncHandler;
// ----------------------------------------------- Compression Support ---//
/**
* List of user agents to not use gzip with
*/
protected String[] noCompressionUserAgents = null;
/**
* List of MIMES which could be gzipped
*/
protected String[] compressableMimeTypes
= { "text/html", "text/xml", "text/plain" };
/**
* Allowed compression level.
*/
protected int compressionLevel = 0;
/**
* Minimum contentsize to make compression.
*/
protected int compressionMinSize = 2048;
/**
* List of restricted user agents.
*/
protected String[] restrictedUserAgents = null;
/**
* Buffer the response until the buffer is full.
*/
protected boolean bufferResponse = true;
/**
* Flag to disable setting a different time-out on uploads.
*/
protected boolean disableUploadTimeout = true;
// ----------------------------------------------------- Constructor ---- //
public DefaultProcessorTask(){
this(true);
}
public DefaultProcessorTask(boolean init){
type = PROCESSOR_TASK;
if (init) {
initialize();
}
}
public DefaultProcessorTask(boolean init, boolean bufferResponse){
this.bufferResponse = bufferResponse;
type = PROCESSOR_TASK;
if (init) {
initialize();
}
}
/**
* Initialize the stream and the buffer used to parse the request.
*/
public void initialize(){
started = true;
request = new Request();
response = new Response();
response.setHook(this);
inputBuffer = new InternalInputBuffer(request,requestBufferSize);
outputBuffer = new SocketChannelOutputBuffer(response,
maxHttpHeaderSize,
bufferResponse);
request.setInputBuffer(inputBuffer);
response.setOutputBuffer(outputBuffer);
request.setResponse(response);
initializeFilters();
}
// ----------------------------------------------------- Thread run ---- //
/**
* Execute the HTTP request by parsing the header/body,
* and then by delegating the process to the Catalina container.
*/
public void doTask() throws IOException{
try {
process(taskContext.getInputStream(),
taskContext.getOutputStream());
} catch(Throwable ex){
SelectorThread.logger().log(Level.FINE,
"processorTask.errorProcessingRequest", ex);
} finally {
terminateProcess();
}
}
// --------------------------------------------------------- TaskEvent ---//
public void taskEvent(TaskEvent event){
if ( event.getStatus() == TaskEvent.START) {
taskContext = (TaskContext)event.attachement();
if (taskEvent == null) {
taskEvent = new TaskEvent<TaskContext>();
}
taskEvent.attach(taskContext);
if ( !asyncExecution ) {
execute();
} else {
asyncHandler.handle(this);
}
}
}
// -------------------------------------------------------------------- //
/**
* Pre process the request by decoding the request line and the header.
*/
public void preProcess() throws Exception {
preProcess(taskContext.getInputStream(),
taskContext.getOutputStream());
}
/**
* Pre process the request by decoding the request line and the header.
* @param input the InputStream to read bytes
* @param output the OutputStream to write bytes
*/
public void preProcess(InputStream input, OutputStream output)
throws Exception {
// Make sure this object has been initialized.
if ( !started ){
initialize();
}
// Setting up the I/O
inputBuffer.setInputStream(input);
if ( key != null ) {
SocketChannelOutputBuffer channelOutputBuffer =
((SocketChannelOutputBuffer)outputBuffer);
channelOutputBuffer.setChannel((SocketChannel)key.channel());
}
configPreProcess();
}
/**
* Prepare this object before parsing the request.
*/
protected void configPreProcess() throws Exception {
if (isMonitoringEnabled()){
adapter.
fireAdapterEvent(Adapter.CONNECTION_PROCESSING_STARTED,
request.getRequestProcessor());
}
if( selectorThread.getDomain() != null
&& isMonitoringEnabled()
&& !hasRequestInfoRegistered ) {
registerMonitoring();
} else if (!isMonitoringEnabled() && hasRequestInfoRegistered) {
unregisterMonitoring();
}
if (isMonitoringEnabled()) {
requestInfo = request.getRequestProcessor();
requestInfo.setWorkerThreadID(Thread.currentThread().getId());
}
// Set the remote address
remoteAddr = null;
remoteHost = null;
localName = null;
localAddr = null;
remotePort = -1;
localPort = -1;
connectionHeaderValueSet = false;
// Error flag
error = false;
keepAlive = true;
if (request.getServerPort() == 0) {
request.setServerPort(selectorThread.getPort());
}
}
/**
* Process an HTTP request using a non blocking <code>socket</code>
*/
protected boolean doProcess() throws Exception {
return doProcess(taskContext.getInputStream(),
taskContext.getOutputStream());
}
/**
* Process an HTTP request using a non blocking <code>socket</code>
* @param input the InputStream to read bytes
* @param output the OutputStream to write bytes
*/
protected boolean doProcess(InputStream input, OutputStream output)
throws Exception{
boolean exitWhile = parseRequest(input,output,false);
if ( exitWhile ) return exitWhile;
invokeAdapter();
postResponse();
return error;
}
/**
* Prepare and post the response.
* @param input the InputStream to read bytes
* @param output the OutputStream to write bytes
*/
public void postResponse() throws Exception{
try {
adapter.afterService(request,response);
} catch (Exception ex) {
error = true;
SelectorThread.logger().log(Level.FINEST,
"processorTask.errorFinishingRequest", ex);
}
// Finish the handling of the request
try {
inputBuffer.endRequest();
} catch (IOException e) {
error = true;
} catch (Throwable t) {
SelectorThread.logger().log(Level.SEVERE,
"processorTask.errorFinishingRequest", t);
// 500 - Internal Server Error
response.setStatus(500);
error = true;
}
try {
outputBuffer.endRequest();
} catch (IOException e) {
error = true;
} catch (Throwable t) {
SelectorThread.logger().log(Level.SEVERE,
"processorTask.errorFinishingResponse", t);
error = true;
}
// If there was an error, make sure the request is counted as
// and error, and update the statistics counter
if (error) {
response.setStatus(500);
}
if (isMonitoringEnabled()) {
request.updateCounters();
adapter.fireAdapterEvent(Adapter.REQUEST_PROCESSING_COMPLETED,
request.getRequestProcessor());
}
// Next request
inputBuffer.nextRequest();
outputBuffer.nextRequest();
}
/**
* Invoke the <code>Adapter</code>, which usualy invoke the Servlet
* Container.
*/
public void invokeAdapter(){
// Process the request in the adapter
if (!error) {
try {
adapter.service(request, response);
// Handle when the response was committed before a serious
// error occurred. Throwing a ServletException should both
// set the status to 500 and set the errorException.
// If we fail here, then the response is likely already
// committed, so we can't try and set headers.
if(keepAlive && !error) { // Avoid checking twice.
error = response.getErrorException() != null ||
statusDropsConnection(response.getStatus());
}
} catch (InterruptedIOException e) {
error = true;
} catch (Throwable t) {
SelectorThread.logger().log(Level.SEVERE,
"processorTask.serviceError", t);
// 500 - Internal Server Error
response.setStatus(500);
error = true;
}
}
}
/**
* Parse the request line and the http header.
*/
public void parseRequest() throws Exception {
parseRequest(taskContext.getInputStream(),
taskContext.getOutputStream(), true);
}
/**
* Parse the request line and the http header.
* @param input the InputStream to read bytes
* @param output the OutputStream to write bytes
*/
public boolean parseRequest(InputStream input, OutputStream output,
boolean keptAlive) throws Exception {
// Parsing the request header
try {
if (isMonitoringEnabled()){
adapter.fireAdapterEvent(Adapter.REQUEST_PROCESSING_STARTED,
request.getRequestProcessor());
}
inputBuffer.parseRequestLine();
if (isMonitoringEnabled()) {
request.getRequestProcessor().setRequestCompletionTime(0);
}
request.setStartTime(System.currentTimeMillis());
if ( handler != null &&
handler.handle(request,Handler.REQUEST_LINE_PARSED)
== Handler.BREAK){
return true;
}
if (!disableUploadTimeout && getSelectionKey() != null) {
((ByteBufferInputStream)input).setReadTimeout(uploadTimeout);
}
keptAlive = true;
inputBuffer.parseHeaders();
if ( selectorThread.isEnableNioLogging() ){
SelectorThread.logger().log(Level.INFO,
"SocketChannel request line" + key.channel() + " is: "
+ request);
SelectorThread.logger().log(Level.INFO, "SocketChannel headers"
+ key.channel() + " are: "
+ request.getMimeHeaders());
}
} catch (IOException e) {
SelectorThread.logger().log(Level.FINEST,
"processorTask.nonBlockingError", e);
error = true;
keepAlive = false;
return true;
} catch (Throwable t) {
SelectorThread.logger().log(Level.SEVERE,
"processorTask.nonBlockingError", t);
// 400 - Bad Request
response.setStatus(400);
error = true;
}
// Setting up filters, and parse some request headers
try {
prepareRequest();
} catch (Throwable t) {
SelectorThread.logger().log(Level.FINE,
"processorTask.createRequestError", t);
// 400 - Internal Server Error
response.setStatus(400);
error = true;
}
return false;
}
/**
* Post process the http request, after the response has been
* commited.
*/
public void postProcess() throws Exception {
postProcess(taskContext.getInputStream(),
taskContext.getOutputStream());
}
/**
* Post process the http request, after the response has been
* commited.
*/
public void postProcess(InputStream input, OutputStream output)
throws Exception {
if (!recycle){
started = false;
inputBuffer = null;
outputBuffer = null;
response = null;
if (isMonitoringEnabled()) {
request.getRequestProcessor().setWorkerThreadID(0);
adapter.fireAdapterEvent(Adapter.CONNECTION_PROCESSING_COMPLETED,
request.getRequestProcessor());
}
request = null;
} else {
inputBuffer.recycle();
outputBuffer.recycle();
}
// Recycle ssl info
sslSupport = null;
if (error){
keepAlive = false;
connectionHeaderValueSet = false;
}
}
/**
* Notify the <code>TaskListener</code> that the request has been
* fully processed.
*/
public void terminateProcess(){
if ( error ) {
taskEvent.setStatus(TaskEvent.ERROR);
} else {
taskEvent.setStatus(TaskEvent.COMPLETED);
}
fireTaskEvent(taskEvent);
}
// -------------------------------------------------------------------- //
/**
* Process pipelined HTTP requests using the specified input and output
* streams.
*
* @param input stream from which the HTTP requests will be read
* @param output stream which will be used to output the HTTP
* responses
* @return true if the connection needs to be keep-alived.
* @throws Exception error during an I/O operation
*/
public boolean process(InputStream input, OutputStream output)
throws Exception {
preProcess(input,output);
doProcess(input,output);
postProcess(input,output);
return keepAlive;
}
/**
* Get the request URI associated with this processor.
*/
public String getRequestURI() {
return request.requestURI().toString();
}
// ----------------------------------------------------- ActionHook Methods
/**
* Send an action to the connector.
*
* @param actionCode Type of the action
* @param param Action parameter
*/
public void action(ActionCode actionCode, Object param) {
if (actionCode == ActionCode.ACTION_COMMIT) {
// Commit current response
if (response.isCommitted())
return;
// Validate and write response headers
prepareResponse();
try {
outputBuffer.commit();
} catch (IOException ex) {
SelectorThread.logger().log(Level.FINEST,
"processorTask.nonBlockingError", ex);
// Set error flag
error = true;
}
} else if (actionCode == ActionCode.ACTION_ACK) {
// Acknowlege request
// Send a 100 status back if it makes sense (response not committed
// yet, and client specified an expectation for 100-continue)
if ((response.isCommitted()) || (!http11))
return;
MessageBytes expectMB = request.getMimeHeaders().getValue("expect");
if ((expectMB != null)
&& (expectMB.indexOfIgnoreCase("100-continue", 0) != -1)) {
try {
outputBuffer.sendAck();
} catch (IOException e) {
// Set error flag
error = true;
}
}
} else if (actionCode == ActionCode.ACTION_CLOSE) {
// Close
// End the processing of the current request, and stop any further
// transactions with the client
try {
outputBuffer.endRequest();
} catch (IOException e) {
SelectorThread.logger().log(Level.FINEST,
"processorTask.nonBlockingError", e);
// Set error flag
error = true;
}
if (key != null) {
try {
((SocketChannelOutputBuffer) outputBuffer).flushBuffer();
} catch (IOException ioe) {
if(SelectorThread.logger().isLoggable(Level.FINEST))
SelectorThread.logger().log(Level.FINEST, "ACTION_POST_REQUEST", ioe);
error = true;
}
}
} else if (actionCode == ActionCode.ACTION_RESET) {
// Reset response
// Note: This must be called before the response is committed
outputBuffer.reset();
} else if (actionCode == ActionCode.ACTION_CUSTOM) {
// Do nothing
} else if (actionCode == ActionCode.ACTION_START) {
started = true;
} else if (actionCode == ActionCode.ACTION_STOP) {
started = false;
} else if (actionCode == ActionCode.ACTION_REQ_SSL_ATTRIBUTE ) {
try {
if (sslSupport != null) {
Object sslO = sslSupport.getCipherSuite();
if (sslO != null)
request.setAttribute
(SSLSupport.CIPHER_SUITE_KEY, sslO);
sslO = sslSupport.getPeerCertificateChain(false);
if (sslO != null)
request.setAttribute
(SSLSupport.CERTIFICATE_KEY, sslO);
sslO = sslSupport.getKeySize();
if (sslO != null)
request.setAttribute
(SSLSupport.KEY_SIZE_KEY, sslO);
sslO = sslSupport.getSessionId();
if (sslO != null)
request.setAttribute
(SSLSupport.SESSION_ID_KEY, sslO);
}
} catch (Exception e) {
SelectorThread.logger().log(Level.WARNING,
"processorTask.errorSSL" ,e);
}
} else if (actionCode == ActionCode.ACTION_REQ_HOST_ADDR_ATTRIBUTE) {
if ((remoteAddr == null) && (socket != null)) {
InetAddress inetAddr = socket.getInetAddress();
if (inetAddr != null) {
remoteAddr = inetAddr.getHostAddress();
}
}
request.remoteAddr().setString(remoteAddr);
} else if (actionCode == ActionCode.ACTION_REQ_LOCAL_NAME_ATTRIBUTE) {
if ((localName == null) && (socket != null)) {
InetAddress inetAddr = socket.getLocalAddress();
if (inetAddr != null) {
localName = inetAddr.getHostName();
}
}
request.localName().setString(localName);
} else if (actionCode == ActionCode.ACTION_REQ_HOST_ATTRIBUTE) {
if ((remoteHost == null) && (socket != null)) {
InetAddress inetAddr = socket.getInetAddress();
if (inetAddr != null) {
remoteHost = inetAddr.getHostName();
}
if(remoteHost == null) {
if(remoteAddr != null) {
remoteHost = remoteAddr;
} else { // all we can do is punt
request.remoteHost().recycle();
}
}
}
request.remoteHost().setString(remoteHost);
} else if (actionCode == ActionCode.ACTION_REQ_LOCAL_ADDR_ATTRIBUTE) {
if (localAddr == null)
localAddr = socket.getLocalAddress().getHostAddress();
request.localAddr().setString(localAddr);
} else if (actionCode == ActionCode.ACTION_REQ_REMOTEPORT_ATTRIBUTE) {
if ((remotePort == -1 ) && (socket !=null)) {
remotePort = socket.getPort();
}
request.setRemotePort(remotePort);
} else if (actionCode == ActionCode.ACTION_REQ_LOCALPORT_ATTRIBUTE) {
if ((localPort == -1 ) && (socket !=null)) {
localPort = socket.getLocalPort();
}
request.setLocalPort(localPort);
} else if (actionCode == ActionCode.ACTION_REQ_SSL_CERTIFICATE) {
if( sslSupport != null) {
/*
* Consume and buffer the request body, so that it does not
* interfere with the client's handshake messages
*/
InputFilter[] inputFilters = inputBuffer.getFilters();
((BufferedInputFilter) inputFilters[Constants.BUFFERED_FILTER])
.setLimit(maxPostSize);
inputBuffer.addActiveFilter
(inputFilters[Constants.BUFFERED_FILTER]);
try {
Object sslO = sslSupport.getPeerCertificateChain(true);
if( sslO != null) {
request.setAttribute
(SSLSupport.CERTIFICATE_KEY, sslO);
}
} catch (Exception e) {
SelectorThread.logger().log(Level.WARNING,
"processorTask.exceptionSSLcert",e);
}
}
} else if ( actionCode == ActionCode.ACTION_POST_REQUEST ) {
if (response.getStatus() == 200 && compressionLevel == 0){
try{
handler.handle(request,Handler.RESPONSE_PROCEEDED);
} catch(IOException ex){
SelectorThread.logger().log(Level.FINEST,
"Handler exception",ex);
}
}
} else if (actionCode == ActionCode.ACTION_CLIENT_FLUSH ) {
if (key != null) {
SocketChannelOutputBuffer channelOutputBuffer =
((SocketChannelOutputBuffer)outputBuffer);
try{
channelOutputBuffer.flush();
} catch (IOException ex){
if (SelectorThread.logger().isLoggable(Level.FINEST)){
SelectorThread.logger().log(Level.FINEST,
"ACTION_CLIENT_FLUSH",ex);
}
error = true;
}
}
}
}
// ------------------------------------------------------ Connector Methods
/**
* Set the associated adapter.
*
* @param adapter the new adapter
*/
public void setAdapter(Adapter adapter) {
this.adapter = adapter;
}
/**
* Get the associated adapter.
*
* @return the associated adapter
*/
public Adapter getAdapter() {
return adapter;
}
// ------------------------------------------------------ Protected Methods
/**
* After reading the request headers, we have to setup the request filters.
*/
protected void prepareRequest() {
http11 = true;
http09 = false;
contentDelimitation = false;
if (sslSupport != null) {
request.scheme().setString("https");
}
MessageBytes protocolMB = request.protocol();
if (protocolMB.equals(Constants.HTTP_11)) {
http11 = true;
protocolMB.setString(Constants.HTTP_11);
} else if (protocolMB.equals(Constants.HTTP_10)) {
http11 = false;
keepAlive = false;
protocolMB.setString(Constants.HTTP_10);
} else if (protocolMB.equals("")) {
// HTTP/0.9
http09 = true;
http11 = false;
keepAlive = false;
} else {
// Unsupported protocol
http11 = false;
error = true;
// Send 505; Unsupported HTTP version
response.setStatus(505);
}
MessageBytes methodMB = request.method();
if (methodMB.equals(Constants.GET)) {
methodMB.setString(Constants.GET);
} else if (methodMB.equals(Constants.POST)) {
methodMB.setString(Constants.POST);
}
MimeHeaders headers = request.getMimeHeaders();
// Check connection header
MessageBytes connectionValueMB = headers.getValue("connection");
if (connectionValueMB != null) {
ByteChunk connectionValueBC = connectionValueMB.getByteChunk();
if (findBytes(connectionValueBC, Constants.CLOSE_BYTES) != -1) {
keepAlive = false;
connectionHeaderValueSet = false;
} else if (findBytes(connectionValueBC,
Constants.KEEPALIVE_BYTES) != -1) {
keepAlive = true;
connectionHeaderValueSet = true;
}
}
// Check user-agent header
if ((restrictedUserAgents != null) && ((http11) || (keepAlive))) {
MessageBytes userAgentValueMB =
request.getMimeHeaders().getValue("user-agent");
// Check in the restricted list, and adjust the http11
// and keepAlive flags accordingly
String userAgentValue = userAgentValueMB.toString();
for (int i = 0; i < restrictedUserAgents.length; i++) {
if (restrictedUserAgents[i].equals(userAgentValue)) {
http11 = false;
keepAlive = false;
}
}
}
// Check for a full URI (including protocol://host:port/)
ByteChunk uriBC = request.requestURI().getByteChunk();
if (uriBC.startsWithIgnoreCase("http", 0)) {
int pos = uriBC.indexOf("://", 0, 3, 4);
int uriBCStart = uriBC.getStart();
int slashPos = -1;
if (pos != -1) {
byte[] uriB = uriBC.getBytes();
slashPos = uriBC.indexOf('/', pos + 3);
if (slashPos == -1) {
slashPos = uriBC.getLength();
// Set URI as "/"
request.requestURI().setBytes
(uriB, uriBCStart + pos + 1, 1);
} else {
request.requestURI().setBytes
(uriB, uriBCStart + slashPos,
uriBC.getLength() - slashPos);
}
MessageBytes hostMB = headers.setValue("host");
hostMB.setBytes(uriB, uriBCStart + pos + 3,
slashPos - pos - 3);
}
}
// Input filter setup
InputFilter[] inputFilters = inputBuffer.getFilters();
// Parse content-length header
long contentLength = request.getContentLengthLong();
if (contentLength >= 0) {
inputBuffer.addActiveFilter
(inputFilters[Constants.IDENTITY_FILTER]);
contentDelimitation = true;
}
// Parse transfer-encoding header
MessageBytes transferEncodingValueMB = null;
if (http11)
transferEncodingValueMB = headers.getValue("transfer-encoding");
if (transferEncodingValueMB != null) {
String transferEncodingValue = transferEncodingValueMB.toString();
// Parse the comma separated list. "identity" codings are ignored
int startPos = 0;
int commaPos = transferEncodingValue.indexOf(',');
String encodingName = null;
while (commaPos != -1) {
encodingName = transferEncodingValue.substring
(startPos, commaPos).toLowerCase().trim();
if (!addInputFilter(inputFilters, encodingName)) {
// Unsupported transfer encoding
error = true;
// 501 - Unimplemented
response.setStatus(501);
}
startPos = commaPos + 1;
commaPos = transferEncodingValue.indexOf(',', startPos);
}
encodingName = transferEncodingValue.substring(startPos)
.toLowerCase().trim();
if (!addInputFilter(inputFilters, encodingName)) {
// Unsupported transfer encoding
error = true;
// 501 - Unimplemented
response.setStatus(501);
}
}
MessageBytes valueMB = headers.getValue("host");
// Check host header
if (http11 && (valueMB == null)) {
error = true;
// 400 - Bad request
response.setStatus(400);
}
parseHost(valueMB);
if (!contentDelimitation) {
// If there's no content length
// (broken HTTP/1.0 or HTTP/1.1), assume
// the client is not broken and didn't send a body
inputBuffer.addActiveFilter
(inputFilters[Constants.VOID_FILTER]);
contentDelimitation = true;
}
}
/**
* Parse host.
*/
public void parseHost(MessageBytes valueMB) {
if (valueMB == null || valueMB.isNull()) {
// HTTP/1.0
// Default is what the socket tells us. Overriden if a host is
// found/parsed
request.setServerPort(socket.getLocalPort());
InetAddress localAddress = socket.getLocalAddress();
// Setting the socket-related fields. The adapter doesn't know
// about socket.
request.setLocalHost(localAddress.getHostName());
request.serverName().setString(localAddress.getHostName());
return;
}
ByteChunk valueBC = valueMB.getByteChunk();
byte[] valueB = valueBC.getBytes();
int valueL = valueBC.getLength();
int valueS = valueBC.getStart();
int colonPos = -1;
if (hostNameC.length < valueL) {
hostNameC = new char[valueL];
}
boolean ipv6 = (valueB[valueS] == '[');
boolean bracketClosed = false;
for (int i = 0; i < valueL; i++) {
char b = (char) valueB[i + valueS];
hostNameC[i] = b;
if (b == ']') {
bracketClosed = true;
} else if (b == ':') {
if (!ipv6 || bracketClosed) {
colonPos = i;
break;
}
}
}
if (colonPos < 0) {
if (sslSupport == null) {
// 80 - Default HTTTP port
request.setServerPort(80);
} else {
// 443 - Default HTTPS port
request.setServerPort(443);
}
request.serverName().setChars(hostNameC, 0, valueL);
} else {
request.serverName().setChars(hostNameC, 0, colonPos);
int port = 0;
int mult = 1;
for (int i = valueL - 1; i > colonPos; i--) {
int charValue = HexUtils.DEC[(int) valueB[i + valueS]];
if (charValue == -1) {
// Invalid character
error = true;
// 400 - Bad request
response.setStatus(400);
break;
}
port = port + (charValue * mult);
mult = 10 * mult;
}
request.setServerPort(port);
}
}
/**
* When committing the response, we have to validate the set of headers, as
* well as setup the response filters.
*/
protected void prepareResponse() {
boolean entityBody = true;
contentDelimitation = false;
OutputFilter[] outputFilters = outputBuffer.getFilters();
if (http09 == true) {
// HTTP/0.9
outputBuffer.addActiveFilter
(outputFilters[Constants.IDENTITY_FILTER]);
return;
}
int statusCode = response.getStatus();
if ((statusCode == 204) || (statusCode == 205)
|| (statusCode == 304)) {
// No entity body
outputBuffer.addActiveFilter
(outputFilters[Constants.VOID_FILTER]);
entityBody = false;
contentDelimitation = true;
}
// Check for compression
boolean useCompression = false;
if (entityBody && (compressionLevel > 0)) {
useCompression = isCompressable();
// Change content-length to -1 to force chunking
if (useCompression) {
response.setContentLength(-1);
}
}
MessageBytes methodMB = request.method();
if (methodMB.equals("HEAD")) {
// No entity body
outputBuffer.addActiveFilter
(outputFilters[Constants.VOID_FILTER]);
contentDelimitation = true;
}
MimeHeaders headers = response.getMimeHeaders();
if (!entityBody) {
response.setContentLength(-1);
} else {
String contentType = response.getContentType();
if (contentType != null) {
headers.setValue("Content-Type").setString(contentType);
} else {
headers.setValue("Content-Type").setString(defaultResponseType);
}
String contentLanguage = response.getContentLanguage();
if (contentLanguage != null) {
headers.setValue("Content-Language")
.setString(contentLanguage);
}
}
int contentLength = response.getContentLength();
if (contentLength != -1) {
headers.setValue("Content-Length").setInt(contentLength);
outputBuffer.addActiveFilter
(outputFilters[Constants.IDENTITY_FILTER]);
contentDelimitation = true;
} else {
if (entityBody && http11 && keepAlive) {
outputBuffer.addActiveFilter
(outputFilters[Constants.CHUNKED_FILTER]);
contentDelimitation = true;
response.addHeader("Transfer-Encoding", "chunked");
} else {
outputBuffer.addActiveFilter
(outputFilters[Constants.IDENTITY_FILTER]);
}
}
if (useCompression) {
outputBuffer.addActiveFilter(outputFilters[Constants.GZIP_FILTER]);
// FIXME: Make content-encoding generation dynamic
response.setHeader("Content-Encoding", "gzip");
// Make Proxies happy via Vary (from mod_deflate)
response.setHeader("Vary", "Accept-Encoding");
}
// Add date header
if (! response.containsHeader("Date")){
String date = FastHttpDateFormat.getCurrentDate();
response.addHeader("Date", date);
}
// Add transfer encoding header
// FIXME
if ((entityBody) && (!contentDelimitation)) {
// Mark as close the connection after the request, and add the
// connection: close header
keepAlive = false;
}
// If we know that the request is bad this early, add the
// Connection: close header.
keepAlive = keepAlive && !statusDropsConnection(statusCode)
&& !dropConnection;
if (!keepAlive ) {
headers.setValue("Connection").setString("close");
connectionHeaderValueSet = false;
} else if (!http11 && !error) {
headers.setValue("Connection").setString("Keep-Alive");
}
// Build the response header
outputBuffer.sendStatus();
int size = headers.size();
for (int i = 0; i < size; i++) {
outputBuffer.sendHeader(headers.getName(i), headers.getValue(i));
}
outputBuffer.endHeaders();
}
/**
* Initialize standard input and output filters.
*/
protected void initializeFilters() {
// Create and add the identity filters.
inputBuffer.addFilter(new IdentityInputFilter());
outputBuffer.addFilter(new IdentityOutputFilter());
// Create and add the chunked filters.
inputBuffer.addFilter(new ChunkedInputFilter());
outputBuffer.addFilter(new ChunkedOutputFilter());
// Create and add the void filters.
inputBuffer.addFilter(new VoidInputFilter());
outputBuffer.addFilter(new VoidOutputFilter());
// Create and add buffered input filter
inputBuffer.addFilter(new BufferedInputFilter());
// Create and add the chunked filters.
//inputBuffer.addFilter(new GzipInputFilter());
outputBuffer.addFilter(new GzipOutputFilter());
}
/**
* Add an input filter to the current request.
*
* @return false if the encoding was not found (which would mean it is
* unsupported)
*/
protected boolean addInputFilter(InputFilter[] inputFilters,
String encodingName) {
if (encodingName.equals("identity")) {
// Skip
} else if (encodingName.equals("chunked")) {
inputBuffer.addActiveFilter
(inputFilters[Constants.CHUNKED_FILTER]);
contentDelimitation = true;
} else {
for (int i = 2; i < inputFilters.length; i++) {
if (inputFilters[i].getEncodingName()
.toString().equals(encodingName)) {
inputBuffer.addActiveFilter(inputFilters[i]);
return true;
}
}
return false;
}
return true;
}
/**
* Specialized utility method: find a sequence of lower case bytes inside
* a ByteChunk.
*/
protected int findBytes(ByteChunk bc, byte[] b) {
byte first = b[0];
byte[] buff = bc.getBuffer();
int start = bc.getStart();
int end = bc.getEnd();
// Look for first char
int srcEnd = b.length;
for (int i = start; i <= (end - srcEnd); i++) {
if (Ascii.toLower(buff[i]) != first) continue;
// found first char, now look for a match
int myPos = i+1;
for (int srcPos = 1; srcPos < srcEnd; ) {
if (Ascii.toLower(buff[myPos++]) != b[srcPos++])
break;
if (srcPos == srcEnd) return i - start; // found it
}
}
return -1;
}
/**
* Determine if we must drop the connection because of the HTTP status
* code. Use the same list of codes as Apache/httpd.
*/
protected boolean statusDropsConnection(int status) {
return status == 400 /* SC_BAD_REQUEST */ ||
status == 408 /* SC_REQUEST_TIMEOUT */ ||
status == 411 /* SC_LENGTH_REQUIRED */ ||
status == 413 /* SC_REQUEST_ENTITY_TOO_LARGE */ ||
status == 414 /* SC_REQUEST_URI_TOO_LARGE */ ||
status == 500 /* SC_INTERNAL_SERVER_ERROR */ ||
status == 503 /* SC_SERVICE_UNAVAILABLE */ ||
status == 501 /* SC_NOT_IMPLEMENTED */;
}
/**
* Add input or output filter.
*
* @param className class name of the filter
*/
protected void addFilter(String className) {
try {
Class clazz = Class.forName(className);
Object obj = clazz.newInstance();
if (obj instanceof InputFilter) {
inputBuffer.addFilter((InputFilter) obj);
} else if (obj instanceof OutputFilter) {
outputBuffer.addFilter((OutputFilter) obj);
} else {
SelectorThread.logger().log(Level.WARNING,
"processorTask.unknownFilter" ,className);
}
} catch (Exception e) {
SelectorThread.logger().log(Level.SEVERE,"processorTask.errorFilter",
new Object[]{className, e});
}
}
/**
* Set the maximum size of a POST which will be buffered in SSL mode.
*/
public void setMaxPostSize(int mps) {
maxPostSize = mps;
}
/**
* Return the maximum size of a POST which will be buffered in SSL mode.
*/
public int getMaxPostSize() {
return maxPostSize;
}
/**
* Set the socket associated with this HTTP connection.
*/
public void setSocket(Socket socket){
this.socket = socket;
}
/**
* Set the upload timeout.
*/
public void setTimeout(int uploadTimeout) {
this.uploadTimeout = uploadTimeout ;
}
/**
* Get the upload timeout.
*/
public int getTimeout() {
return uploadTimeout;
}
/**
* Register a new <code>RequestProcessor</code> instance.
*/
private void registerMonitoring(){
if ( selectorThread.getManagement() == null ) return;
RequestInfo requestInfo = request.getRequestProcessor();
// Add RequestInfo to RequestGroupInfo
requestInfo.setGlobalProcessor(getRequestGroupInfo());
try {
oname = new ObjectName(selectorThread.getDomain()
+ ":type=RequestProcessor,worker=http"
+ selectorThread.getPort()
+ ",name=HttpRequest"
+ requestCount++ );
selectorThread.getManagement().
registerComponent(requestInfo, oname,null);
} catch( Exception ex ) {
SelectorThread.logger().log(Level.WARNING,
"processorTask.errorRegisteringRequest",
ex);
}
hasRequestInfoRegistered = true;
}
/**
* Unregisters the MBean corresponding to this
* <code>ProcessorTask</code>.
*/
private void unregisterMonitoring() {
if ( selectorThread.getManagement() == null ) return;
RequestInfo requestInfo = request.getRequestProcessor();
/*
* Remove 'requestInfo' from 'requestGroupInfo'.
* This will also update 'requestGroupInfo' with the current stats
* of 'requestInfo', which is why we need to reset 'requestInfo' so
* its current stats will not be considered when it is added back to
* 'requestGroupInfo' next time registerMonitoring() is called.
*/
requestInfo.setGlobalProcessor(null);
requestInfo.reset();
if (oname != null) {
try {
selectorThread.getManagement().unregisterComponent(oname);
} catch (Exception ex) {
SelectorThread.logger().log(Level.WARNING,
"processorTask.errorUnregisteringRequest",
ex);
}
}
hasRequestInfoRegistered = false;
}
public int getMaxHttpHeaderSize() {
return maxHttpHeaderSize;
}
public void setMaxHttpHeaderSize(int maxHttpHeaderSize) {
this.maxHttpHeaderSize = maxHttpHeaderSize;
}
/**
* Set the request input buffer size
*/
public void setBufferSize(int requestBufferSize){
this.requestBufferSize = requestBufferSize;
}
/**
* Return the request input buffer size
*/
public int getBufferSize(){
return requestBufferSize;
}
/**
* Return the current <code>Socket</code> used by this instance
* @return socket the current <code>Socket</code> used by this instance
*/
public Socket getSocket(){
return socket;
}
/**
* Enable or disable the keep-alive mechanism. Setting this value
* to <code>false</code> will automatically add the following header to the
* response ' Connection: close '
*/
public void setDropConnection(boolean dropConnection){
this.dropConnection = dropConnection;
}
/**
* Is the keep-alive mechanism enabled or disabled.
*/
public boolean getDropConnection(){
return dropConnection;
}
/**
* Set the <code>Handler</code> used by this class.
*/
public void setHandler(Handler handler){
this.handler = handler;
}
/**
* Return the <code>Handler</code> used by this instance.
*/
public Handler getHandler(){
return handler;
}
/**
* Set the default response type used. Specified as a semi-colon
* delimited string consisting of content-type, encoding,
* language, charset
*/
public void setDefaultResponseType(String defaultResponseType){
this.defaultResponseType = defaultResponseType;
}
/**
* Return the default response type used
*/
public String getDefaultResponseType(){
return defaultResponseType;
}
/**
* Sets the forced request type, which is forced onto requests that
* do not already specify any MIME type.
*/
public void setForcedRequestType(String forcedRequestType){
this.forcedRequestType = forcedRequestType;
}
/**
* Return the default request type used
*/
public String getForcedRequestType(){
return forcedRequestType;
}
// ------------------------------------------------------- Asynch call ---//
/**
* Enable/disable asynchronous execution of this object.
*/
public void setEnableAsyncExecution(boolean asyncExecution){
this.asyncExecution = asyncExecution;
}
/**
* Is asynchronous execution enabled?
*/
public boolean isAsyncExecutionEnabled(){
return asyncExecution;
}
/**
* Set the <code>AsyncHandler</code> used when asynchronous execution is
* enabled.
*/
public void setAsyncHandler(AsyncHandler asyncHandler){
this.asyncHandler = asyncHandler;
}
/**
* Return the <code>AsyncHandler</code> used when asynchronous execution is
* enabled.
*/
public AsyncHandler getAsyncHandler(){
return asyncHandler;
}
/**
* Return the internal <code>Request</code> object.
*/
public Request getRequest(){
return request;
}
/**
* Recyle this object.
*/
public void recycle(){
if ( taskEvent != null ){
taskEvent.setStatus(TaskEvent.START);
}
if ( listeners!= null && listeners.size() > 0)
clearTaskListeners();
socket = null;
dropConnection = false;
key = null;
}
// ----------------------------------------------------- Compression ----//
/**
* Return compression level.
*/
public String getCompression() {
switch (compressionLevel) {
case 0:
return "off";
case 1:
return "on";
case 2:
return "force";
}
return "off";
}
/**
* Set compression level.
*/
public void setCompression(String compression) {
if (compression.equals("on")) {
this.compressionLevel = 1;
} else if (compression.equals("force")) {
this.compressionLevel = 2;
} else if (compression.equals("off")) {
this.compressionLevel = 0;
} else {
try {
// Try to parse compression as an int, which would give the
// minimum compression size
compressionMinSize = Integer.parseInt(compression);
this.compressionLevel = 1;
} catch (Exception e) {
this.compressionLevel = 0;
}
}
}
/**
* Add user-agent for which gzip compression didn't works
* The user agent String given will be exactly matched
* to the user-agent header submitted by the client.
*
* @param userAgent user-agent string
*/
public void addNoCompressionUserAgent(String userAgent) {
addStringArray(noCompressionUserAgents, userAgent);
}
/**
* Set no compression user agent list (this method is best when used with
* a large number of connectors, where it would be better to have all of
* them referenced a single array).
*/
public void setNoCompressionUserAgents(String[] noCompressionUserAgents) {
this.noCompressionUserAgents = noCompressionUserAgents;
}
/**
* Return the list of no compression user agents.
*/
public String[] findNoCompressionUserAgents() {
return (noCompressionUserAgents);
}
/**
* Add a mime-type which will be compressable
* The mime-type String will be exactly matched
* in the response mime-type header .
*
* @param userAgent user-agent string
*/
public void addCompressableMimeType(String mimeType) {
addStringArray(compressableMimeTypes, mimeType);
}
/**
* Set compressable mime-type list (this method is best when used with
* a large number of connectors, where it would be better to have all of
* them referenced a single array).
*/
public void setCompressableMimeType(String[] compressableMimeTypes) {
this.compressableMimeTypes = compressableMimeTypes;
}
/**
* Return the list of restricted user agents.
*/
public String[] findCompressableMimeTypes() {
return (compressableMimeTypes);
}
/**
* General use method
*
* @param sArray the StringArray
* @param value string
*/
private void addStringArray(String sArray[], String value) {
if (sArray == null)
sArray = new String[0];
String[] results = new String[sArray.length + 1];
for (int i = 0; i < sArray.length; i++)
results[i] = sArray[i];
results[sArray.length] = value;
sArray = results;
}
/**
* General use method
*
* @param sArray the StringArray
* @param value string
*/
private boolean inStringArray(String sArray[], String value) {
for (int i = 0; i < sArray.length; i++) {
if (sArray[i].equals(value)) {
return true;
}
}
return false;
}
/**
* Check for compression
*
*/
private boolean isCompressable(){
// Compression only since HTTP 1.1
if (! http11)
return false;
// Check if browser support gzip encoding
MessageBytes acceptEncodingMB =
request.getMimeHeaders().getValue("accept-encoding");
if ((acceptEncodingMB == null)
|| (acceptEncodingMB.indexOf("gzip") == -1))
return false;
// Check if content is not allready gzipped
MessageBytes contentEncodingMB =
response.getMimeHeaders().getValue("Content-Encoding");
if ((contentEncodingMB != null)
&& (contentEncodingMB.indexOf("gzip") != -1))
return false;
// If force mode, allways compress (test purposes only)
if (compressionLevel == 2)
return true;
// Check for incompatible Browser
if (noCompressionUserAgents != null) {
MessageBytes userAgentValueMB =
request.getMimeHeaders().getValue("user-agent");
String userAgentValue = userAgentValueMB.toString();
if (inStringArray(noCompressionUserAgents, userAgentValue))
return false;
}
// Check if suffisant len to trig the compression
int contentLength = response.getContentLength();
if ((contentLength == -1)
|| (contentLength > compressionMinSize)) {
// Check for compatible MIME-TYPE
if (compressableMimeTypes != null)
return (inStringArray(compressableMimeTypes,
response.getContentType()));
}
return false;
}
public int getCompressionMinSize() {
return compressionMinSize;
}
public void setCompressionMinSize(int compressionMinSize) {
this.compressionMinSize = compressionMinSize;
}
/**
* Add restricted user-agent (which will downgrade the connector
* to HTTP/1.0 mode). The user agent String given will be exactly matched
* to the user-agent header submitted by the client.
*
* @param userAgent user-agent string
*/
public void addRestrictedUserAgent(String userAgent) {
addStringArray(restrictedUserAgents, userAgent);
}
/**
* Set restricted user agent list (this method is best when used with
* a large number of connectors, where it would be better to have all of
* them referenced a single array).
*/
public void setRestrictedUserAgents(String[] restrictedUserAgents) {
this.restrictedUserAgents = restrictedUserAgents;
}
/**
* Return the list of restricted user agents.
*/
public String[] findRestrictedUserAgents() {
return (restrictedUserAgents);
}
/**
* Return the SSLSupport object used by this instance.
*/
public SSLSupport getSSLSupport() {
return sslSupport;
}
/**
* Set the SSLSupport object used by this instance.
*/
public void setSSLSupport(SSLSupport sslSupport) {
this.sslSupport = sslSupport;
}
/**
* Return the current WorkerThread ID associated with this instance.
*/
public long getWorkerThreadID(){
return request.getRequestProcessor().getWorkerThreadID();
}
public boolean isKeepAlive() {
return keepAlive;
}
public void setConnectionHeaderValueSet(boolean connectionHeaderValueSet) {
this.connectionHeaderValueSet = connectionHeaderValueSet;
}
public boolean isError() {
return error;
}
public void setError(boolean error) {
this.error = error;
}
/**
* Set the flag to control upload time-outs.
*/
public void setDisableUploadTimeout(boolean isDisabled) {
disableUploadTimeout = isDisabled;
}
/**
* Get the flag that controls upload time-outs.
*/
public boolean getDisableUploadTimeout() {
return disableUploadTimeout;
}
}
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