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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.coyote.http11;
import java.net.InetAddress;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.Executor;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import javax.management.MBeanRegistration;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import org.apache.coyote.ActionCode;
import org.apache.coyote.Adapter;
import org.apache.coyote.ProtocolHandler;
import org.apache.coyote.RequestGroupInfo;
import org.apache.coyote.RequestInfo;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.modeler.Registry;
import org.apache.tomcat.util.net.AprEndpoint;
import org.apache.tomcat.util.net.SocketStatus;
import org.apache.tomcat.util.net.AprEndpoint.Handler;
import org.apache.tomcat.util.res.StringManager;
/**
* Abstract the protocol implementation, including threading, etc.
* Processor is single threaded and specific to stream-based protocols,
* will not fit Jk protocols like JNI.
*
* @author Remy Maucherat
* @author Costin Manolache
*/
public class Http11AprProtocol implements ProtocolHandler, MBeanRegistration {
private static final Log log = LogFactory.getLog(Http11AprProtocol.class);
/**
* The string manager for this package.
*/
protected static final StringManager sm =
StringManager.getManager(Constants.Package);
public Http11AprProtocol() {
setSoLinger(Constants.DEFAULT_CONNECTION_LINGER);
setSoTimeout(Constants.DEFAULT_CONNECTION_TIMEOUT);
//setServerSoTimeout(Constants.DEFAULT_SERVER_SOCKET_TIMEOUT);
setTcpNoDelay(Constants.DEFAULT_TCP_NO_DELAY);
}
/** Pass config info
*/
public void setAttribute( String name, Object value ) {
if( log.isTraceEnabled())
log.trace(sm.getString("http11protocol.setattribute", name, value));
attributes.put(name, value);
}
public Object getAttribute( String key ) {
if( log.isTraceEnabled())
log.trace(sm.getString("http11protocol.getattribute", key));
return attributes.get(key);
}
public Iterator getAttributeNames() {
return attributes.keySet().iterator();
}
/**
* The adapter, used to call the connector.
*/
protected Adapter adapter;
public void setAdapter(Adapter adapter) { this.adapter = adapter; }
public Adapter getAdapter() { return adapter; }
/** Start the protocol
*/
public void init() throws Exception {
endpoint.setName(getName());
endpoint.setHandler(cHandler);
try {
endpoint.init();
} catch (Exception ex) {
log.error(sm.getString("http11protocol.endpoint.initerror"), ex);
throw ex;
}
if(log.isInfoEnabled())
log.info(sm.getString("http11protocol.init", getName()));
}
ObjectName tpOname;
ObjectName rgOname;
public void start() throws Exception {
if( this.domain != null ) {
try {
tpOname=new ObjectName
(domain + ":" + "type=ThreadPool,name=" + getName());
Registry.getRegistry(null, null)
.registerComponent(endpoint, tpOname, null );
} catch (Exception e) {
log.error("Can't register threadpool" );
}
rgOname=new ObjectName
(domain + ":type=GlobalRequestProcessor,name=" + getName());
Registry.getRegistry(null, null).registerComponent
( cHandler.global, rgOname, null );
}
try {
endpoint.start();
} catch (Exception ex) {
log.error(sm.getString("http11protocol.endpoint.starterror"), ex);
throw ex;
}
if(log.isInfoEnabled())
log.info(sm.getString("http11protocol.start", getName()));
}
public void pause() throws Exception {
try {
endpoint.pause();
} catch (Exception ex) {
log.error(sm.getString("http11protocol.endpoint.pauseerror"), ex);
throw ex;
}
if(log.isInfoEnabled())
log.info(sm.getString("http11protocol.pause", getName()));
}
public void resume() throws Exception {
try {
endpoint.resume();
} catch (Exception ex) {
log.error(sm.getString("http11protocol.endpoint.resumeerror"), ex);
throw ex;
}
if(log.isInfoEnabled())
log.info(sm.getString("http11protocol.resume", getName()));
}
public void destroy() throws Exception {
if(log.isInfoEnabled())
log.info(sm.getString("http11protocol.stop", getName()));
endpoint.destroy();
if( tpOname!=null )
Registry.getRegistry(null, null).unregisterComponent(tpOname);
if( rgOname != null )
Registry.getRegistry(null, null).unregisterComponent(rgOname);
}
public String getName() {
String encodedAddr = "";
if (getAddress() != null) {
encodedAddr = "" + getAddress();
if (encodedAddr.startsWith("/"))
encodedAddr = encodedAddr.substring(1);
encodedAddr = URLEncoder.encode(encodedAddr) + "-";
}
return ("http-" + encodedAddr + endpoint.getPort());
}
protected AprEndpoint endpoint=new AprEndpoint();
protected HashMap attributes = new HashMap();
private Http11ConnectionHandler cHandler = new Http11ConnectionHandler(this);
/**
* Processor cache.
*/
protected int processorCache = -1;
public int getProcessorCache() { return this.processorCache; }
public void setProcessorCache(int processorCache) { this.processorCache = processorCache; }
public Executor getExecutor() { return endpoint.getExecutor(); }
public void setExecutor(Executor executor) { endpoint.setExecutor(executor); }
public int getMaxThreads() { return endpoint.getMaxThreads(); }
public void setMaxThreads(int maxThreads) { endpoint.setMaxThreads(maxThreads); }
public int getThreadPriority() { return endpoint.getThreadPriority(); }
public void setThreadPriority(int threadPriority) { endpoint.setThreadPriority(threadPriority); }
public int getBacklog() { return endpoint.getBacklog(); }
public void setBacklog(int backlog) { endpoint.setBacklog(backlog); }
public int getPort() { return endpoint.getPort(); }
public void setPort(int port) { endpoint.setPort(port); }
public InetAddress getAddress() { return endpoint.getAddress(); }
public void setAddress(InetAddress ia) { endpoint.setAddress(ia); }
public boolean getTcpNoDelay() { return endpoint.getTcpNoDelay(); }
public void setTcpNoDelay(boolean tcpNoDelay) { endpoint.setTcpNoDelay(tcpNoDelay); }
public int getSoLinger() { return endpoint.getSoLinger(); }
public void setSoLinger(int soLinger) { endpoint.setSoLinger(soLinger); }
public int getSoTimeout() { return endpoint.getSoTimeout(); }
public void setSoTimeout(int soTimeout) { endpoint.setSoTimeout(soTimeout); }
/**
* The number of seconds Tomcat will wait for a subsequent request
* before closing the connection.
*/
public int getKeepAliveTimeout() { return endpoint.getKeepAliveTimeout(); }
public void setKeepAliveTimeout(int timeout) { endpoint.setKeepAliveTimeout(timeout); }
public boolean getUseSendfile() { return endpoint.getUseSendfile(); }
public void setUseSendfile(boolean useSendfile) { endpoint.setUseSendfile(useSendfile); }
public int getPollTime() { return endpoint.getPollTime(); }
public void setPollTime(int pollTime) { endpoint.setPollTime(pollTime); }
public void setPollerSize(int pollerSize) { endpoint.setPollerSize(pollerSize); }
public int getPollerSize() { return endpoint.getPollerSize(); }
public void setPollerThreadCount(int pollerThreadCount) { endpoint.setPollerThreadCount(pollerThreadCount); }
public int getPollerThreadCount() { return endpoint.getPollerThreadCount(); }
public int getSendfileSize() { return endpoint.getSendfileSize(); }
public void setSendfileSize(int sendfileSize) { endpoint.setSendfileSize(sendfileSize); }
public void setSendfileThreadCount(int sendfileThreadCount) { endpoint.setSendfileThreadCount(sendfileThreadCount); }
public int getSendfileThreadCount() { return endpoint.getSendfileThreadCount(); }
public boolean getDeferAccept() { return endpoint.getDeferAccept(); }
public void setDeferAccept(boolean deferAccept) { endpoint.setDeferAccept(deferAccept); }
protected int socketBuffer = 9000;
public int getSocketBuffer() { return socketBuffer; }
public void setSocketBuffer(int socketBuffer) { this.socketBuffer = socketBuffer; }
/**
* Maximum size of the post which will be saved when processing certain
* requests, such as a POST.
*/
protected int maxSavePostSize = 4 * 1024;
public int getMaxSavePostSize() { return maxSavePostSize; }
public void setMaxSavePostSize(int valueI) { maxSavePostSize = valueI; }
// HTTP
/**
* Maximum size of the HTTP message header.
*/
protected int maxHttpHeaderSize = 8 * 1024;
public int getMaxHttpHeaderSize() { return maxHttpHeaderSize; }
public void setMaxHttpHeaderSize(int valueI) { maxHttpHeaderSize = valueI; }
// HTTP
/**
* If true, the regular socket timeout will be used for the full duration
* of the connection.
*/
protected boolean disableUploadTimeout = true;
public boolean getDisableUploadTimeout() { return disableUploadTimeout; }
public void setDisableUploadTimeout(boolean isDisabled) { disableUploadTimeout = isDisabled; }
// HTTP
/**
* Integrated compression support.
*/
protected String compression = "off";
public String getCompression() { return compression; }
public void setCompression(String valueS) { compression = valueS; }
// HTTP
protected String noCompressionUserAgents = null;
public String getNoCompressionUserAgents() { return noCompressionUserAgents; }
public void setNoCompressionUserAgents(String valueS) { noCompressionUserAgents = valueS; }
// HTTP
protected String compressableMimeTypes = "text/html,text/xml,text/plain";
public String getCompressableMimeType() { return compressableMimeTypes; }
public void setCompressableMimeType(String valueS) { compressableMimeTypes = valueS; }
// HTTP
protected int compressionMinSize = 2048;
public int getCompressionMinSize() { return compressionMinSize; }
public void setCompressionMinSize(int valueI) { compressionMinSize = valueI; }
// HTTP
/**
* User agents regular expressions which should be restricted to HTTP/1.0 support.
*/
protected String restrictedUserAgents = null;
public String getRestrictedUserAgents() { return restrictedUserAgents; }
public void setRestrictedUserAgents(String valueS) { restrictedUserAgents = valueS; }
protected String protocol = null;
public String getProtocol() { return protocol; }
public void setProtocol(String protocol) { setSecure(true); this.protocol = protocol; }
/**
* Maximum number of requests which can be performed over a keepalive
* connection. The default is the same as for Apache HTTP Server.
*/
protected int maxKeepAliveRequests = 100;
public int getMaxKeepAliveRequests() { return maxKeepAliveRequests; }
public void setMaxKeepAliveRequests(int mkar) { maxKeepAliveRequests = mkar; }
/**
* Return the Keep-Alive policy for the connection.
*/
public boolean getKeepAlive() {
return ((maxKeepAliveRequests != 0) && (maxKeepAliveRequests != 1));
}
/**
* Set the keep-alive policy for this connection.
*/
public void setKeepAlive(boolean keepAlive) {
if (!keepAlive) {
setMaxKeepAliveRequests(1);
}
}
/**
* Server header.
*/
protected String server;
public void setServer( String server ) { this.server = server; }
public String getServer() { return server; }
/**
* This timeout represents the socket timeout which will be used while
* the adapter execution is in progress, unless disableUploadTimeout
* is set to true. The default is the same as for Apache HTTP Server
* (300 000 milliseconds).
*/
protected int timeout = 300000;
public int getTimeout() { return timeout; }
public void setTimeout(int timeout) { this.timeout = timeout; }
/**
* This field indicates if the protocol is secure from the perspective of
* the client (= https is used).
*/
protected boolean secure;
public boolean getSecure() { return secure; }
public void setSecure(boolean b) { secure = b; }
// -------------------- SSL related properties --------------------
/**
* SSL engine.
*/
public boolean isSSLEnabled() { return endpoint.isSSLEnabled(); }
public void setSSLEnabled(boolean SSLEnabled) { endpoint.setSSLEnabled(SSLEnabled); }
/**
* SSL protocol.
*/
public String getSSLProtocol() { return endpoint.getSSLProtocol(); }
public void setSSLProtocol(String SSLProtocol) { endpoint.setSSLProtocol(SSLProtocol); }
/**
* SSL password (if a cert is encrypted, and no password has been provided, a callback
* will ask for a password).
*/
public String getSSLPassword() { return endpoint.getSSLPassword(); }
public void setSSLPassword(String SSLPassword) { endpoint.setSSLPassword(SSLPassword); }
/**
* SSL cipher suite.
*/
public String getSSLCipherSuite() { return endpoint.getSSLCipherSuite(); }
public void setSSLCipherSuite(String SSLCipherSuite) { endpoint.setSSLCipherSuite(SSLCipherSuite); }
/**
* SSL certificate file.
*/
public String getSSLCertificateFile() { return endpoint.getSSLCertificateFile(); }
public void setSSLCertificateFile(String SSLCertificateFile) { endpoint.setSSLCertificateFile(SSLCertificateFile); }
/**
* SSL certificate key file.
*/
public String getSSLCertificateKeyFile() { return endpoint.getSSLCertificateKeyFile(); }
public void setSSLCertificateKeyFile(String SSLCertificateKeyFile) { endpoint.setSSLCertificateKeyFile(SSLCertificateKeyFile); }
/**
* SSL certificate chain file.
*/
public String getSSLCertificateChainFile() { return endpoint.getSSLCertificateChainFile(); }
public void setSSLCertificateChainFile(String SSLCertificateChainFile) { endpoint.setSSLCertificateChainFile(SSLCertificateChainFile); }
/**
* SSL CA certificate path.
*/
public String getSSLCACertificatePath() { return endpoint.getSSLCACertificatePath(); }
public void setSSLCACertificatePath(String SSLCACertificatePath) { endpoint.setSSLCACertificatePath(SSLCACertificatePath); }
/**
* SSL CA certificate file.
*/
public String getSSLCACertificateFile() { return endpoint.getSSLCACertificateFile(); }
public void setSSLCACertificateFile(String SSLCACertificateFile) { endpoint.setSSLCACertificateFile(SSLCACertificateFile); }
/**
* SSL CA revocation path.
*/
public String getSSLCARevocationPath() { return endpoint.getSSLCARevocationPath(); }
public void setSSLCARevocationPath(String SSLCARevocationPath) { endpoint.setSSLCARevocationPath(SSLCARevocationPath); }
/**
* SSL CA revocation file.
*/
public String getSSLCARevocationFile() { return endpoint.getSSLCARevocationFile(); }
public void setSSLCARevocationFile(String SSLCARevocationFile) { endpoint.setSSLCARevocationFile(SSLCARevocationFile); }
/**
* SSL verify client.
*/
public String getSSLVerifyClient() { return endpoint.getSSLVerifyClient(); }
public void setSSLVerifyClient(String SSLVerifyClient) { endpoint.setSSLVerifyClient(SSLVerifyClient); }
/**
* SSL verify depth.
*/
public int getSSLVerifyDepth() { return endpoint.getSSLVerifyDepth(); }
public void setSSLVerifyDepth(int SSLVerifyDepth) { endpoint.setSSLVerifyDepth(SSLVerifyDepth); }
// -------------------- Connection handler --------------------
static class Http11ConnectionHandler implements Handler {
protected Http11AprProtocol proto;
protected AtomicLong registerCount = new AtomicLong(0);
protected RequestGroupInfo global = new RequestGroupInfo();
protected ConcurrentHashMap connections =
new ConcurrentHashMap();
protected ConcurrentLinkedQueue recycledProcessors =
new ConcurrentLinkedQueue() {
protected AtomicInteger size = new AtomicInteger(0);
@Override
public boolean offer(Http11AprProcessor processor) {
boolean offer = (proto.processorCache == -1) ? true : (size.get() < proto.processorCache);
//avoid over growing our cache or add after we have stopped
boolean result = false;
if ( offer ) {
result = super.offer(processor);
if ( result ) {
size.incrementAndGet();
}
}
if (!result) unregister(processor);
return result;
}
@Override
public Http11AprProcessor poll() {
Http11AprProcessor result = super.poll();
if ( result != null ) {
size.decrementAndGet();
}
return result;
}
@Override
public void clear() {
Http11AprProcessor next = poll();
while ( next != null ) {
unregister(next);
next = poll();
}
super.clear();
size.set(0);
}
};
Http11ConnectionHandler(Http11AprProtocol proto) {
this.proto = proto;
}
public SocketState event(long socket, SocketStatus status) {
Http11AprProcessor result = connections.get(Long.valueOf(socket));
SocketState state = SocketState.CLOSED;
if (result != null) {
// Call the appropriate event
try {
state = result.event(status);
} catch (java.net.SocketException e) {
// SocketExceptions are normal
Http11AprProtocol.log.debug
(sm.getString
("http11protocol.proto.socketexception.debug"), e);
} catch (java.io.IOException e) {
// IOExceptions are normal
Http11AprProtocol.log.debug
(sm.getString
("http11protocol.proto.ioexception.debug"), e);
}
// Future developers: if you discover any other
// rare-but-nonfatal exceptions, catch them here, and log as
// above.
catch (Throwable e) {
// any other exception or error is odd. Here we log it
// with "ERROR" level, so it will show up even on
// less-than-verbose logs.
Http11AprProtocol.log.error
(sm.getString("http11protocol.proto.error"), e);
} finally {
if (state != SocketState.LONG) {
connections.remove(Long.valueOf(socket));
recycledProcessors.offer(result);
if (state == SocketState.OPEN) {
proto.endpoint.getPoller().add(socket);
}
} else {
proto.endpoint.getCometPoller().add(socket);
}
}
}
return state;
}
public SocketState process(long socket) {
Http11AprProcessor processor = recycledProcessors.poll();
try {
if (processor == null) {
processor = createProcessor();
}
processor.action(ActionCode.ACTION_START, null);
SocketState state = processor.process(socket);
if (state == SocketState.LONG) {
// Associate the connection with the processor. The next request
// processed by this thread will use either a new or a recycled
// processor.
connections.put(Long.valueOf(socket), processor);
proto.endpoint.getCometPoller().add(socket);
} else {
recycledProcessors.offer(processor);
}
return state;
} catch (java.net.SocketException e) {
// SocketExceptions are normal
Http11AprProtocol.log.debug
(sm.getString
("http11protocol.proto.socketexception.debug"), e);
} catch (java.io.IOException e) {
// IOExceptions are normal
Http11AprProtocol.log.debug
(sm.getString
("http11protocol.proto.ioexception.debug"), e);
}
// Future developers: if you discover any other
// rare-but-nonfatal exceptions, catch them here, and log as
// above.
catch (Throwable e) {
// any other exception or error is odd. Here we log it
// with "ERROR" level, so it will show up even on
// less-than-verbose logs.
Http11AprProtocol.log.error
(sm.getString("http11protocol.proto.error"), e);
}
recycledProcessors.offer(processor);
return SocketState.CLOSED;
}
public SocketState asyncDispatch(long socket, SocketStatus status) {
Http11AprProcessor result = connections.get(Long.valueOf(socket));
SocketState state = SocketState.CLOSED;
if (result != null) {
// Call the appropriate event
try {
state = result.asyncDispatch(socket, status);
} catch (java.net.SocketException e) {
// SocketExceptions are normal
Http11AprProtocol.log.debug
(sm.getString
("http11protocol.proto.socketexception.debug"), e);
} catch (java.io.IOException e) {
// IOExceptions are normal
Http11AprProtocol.log.debug
(sm.getString
("http11protocol.proto.ioexception.debug"), e);
}
// Future developers: if you discover any other
// rare-but-nonfatal exceptions, catch them here, and log as
// above.
catch (Throwable e) {
// any other exception or error is odd. Here we log it
// with "ERROR" level, so it will show up even on
// less-than-verbose logs.
Http11AprProtocol.log.error
(sm.getString("http11protocol.proto.error"), e);
} finally {
if (state != SocketState.LONG) {
connections.remove(Long.valueOf(socket));
recycledProcessors.offer(result);
if (state == SocketState.OPEN) {
proto.endpoint.getPoller().add(socket);
}
}
}
}
return state;
}
protected Http11AprProcessor createProcessor() {
Http11AprProcessor processor =
new Http11AprProcessor(proto.maxHttpHeaderSize, proto.endpoint);
processor.setAdapter(proto.adapter);
processor.setMaxKeepAliveRequests(proto.maxKeepAliveRequests);
processor.setTimeout(proto.timeout);
processor.setDisableUploadTimeout(proto.disableUploadTimeout);
processor.setCompressionMinSize(proto.compressionMinSize);
processor.setCompression(proto.compression);
processor.setNoCompressionUserAgents(proto.noCompressionUserAgents);
processor.setCompressableMimeTypes(proto.compressableMimeTypes);
processor.setRestrictedUserAgents(proto.restrictedUserAgents);
processor.setSocketBuffer(proto.socketBuffer);
processor.setMaxSavePostSize(proto.maxSavePostSize);
processor.setServer(proto.server);
register(processor);
return processor;
}
protected void register(Http11AprProcessor processor) {
if (proto.getDomain() != null) {
synchronized (this) {
try {
long count = registerCount.incrementAndGet();
RequestInfo rp = processor.getRequest().getRequestProcessor();
rp.setGlobalProcessor(global);
ObjectName rpName = new ObjectName
(proto.getDomain() + ":type=RequestProcessor,worker="
+ proto.getName() + ",name=HttpRequest" + count);
if (log.isDebugEnabled()) {
log.debug("Register " + rpName);
}
Registry.getRegistry(null, null).registerComponent(rp, rpName, null);
rp.setRpName(rpName);
} catch (Exception e) {
log.warn("Error registering request");
}
}
}
}
protected void unregister(Http11AprProcessor processor) {
if (proto.getDomain() != null) {
synchronized (this) {
try {
RequestInfo rp = processor.getRequest().getRequestProcessor();
rp.setGlobalProcessor(null);
ObjectName rpName = rp.getRpName();
if (log.isDebugEnabled()) {
log.debug("Unregister " + rpName);
}
Registry.getRegistry(null, null).unregisterComponent(rpName);
rp.setRpName(null);
} catch (Exception e) {
log.warn("Error unregistering request", e);
}
}
}
}
}
// -------------------- Various implementation classes --------------------
protected String domain;
protected ObjectName oname;
protected MBeanServer mserver;
public ObjectName getObjectName() {
return oname;
}
public String getDomain() {
return domain;
}
public ObjectName preRegister(MBeanServer server,
ObjectName name) throws Exception {
oname=name;
mserver=server;
domain=name.getDomain();
return name;
}
public void postRegister(Boolean registrationDone) {
}
public void preDeregister() throws Exception {
}
public void postDeregister() {
}
}
