/*
* 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.ajp;
import java.net.InetAddress;
import java.util.regex.Pattern;
import org.apache.coyote.AbstractProtocol;
import org.apache.coyote.Processor;
import org.apache.coyote.UpgradeProtocol;
import org.apache.coyote.UpgradeToken;
import org.apache.tomcat.util.net.AbstractEndpoint;
import org.apache.tomcat.util.net.SSLHostConfig;
import org.apache.tomcat.util.net.SocketWrapperBase;
import org.apache.tomcat.util.res.StringManager;
/**
* This the base implementation for the AJP protocol handlers. Implementations typically extend this base class rather
* than implement {@link org.apache.coyote.ProtocolHandler}. All of the implementations that ship with Tomcat are
* implemented this way.
*
* @param <S> The type of socket used by the implementation
*/
public abstract class AbstractAjpProtocol<S> extends AbstractProtocol<S> {
/**
* The string manager for this package.
*/
protected static final StringManager sm = StringManager.getManager(AbstractAjpProtocol.class);
public AbstractAjpProtocol(AbstractEndpoint<S,?> endpoint) {
super(endpoint);
setConnectionTimeout(Constants.DEFAULT_CONNECTION_TIMEOUT);
// AJP does not use Send File
getEndpoint().setUseSendfile(false);
// AJP listens on loopback by default
getEndpoint().setAddress(InetAddress.getLoopbackAddress());
}
@Override
protected String getProtocolName() {
return "Ajp";
}
/**
* {@inheritDoc} Overridden to make getter accessible to other classes in this package.
*/
@Override
protected AbstractEndpoint<S,?> getEndpoint() {
return super.getEndpoint();
}
/**
* {@inheritDoc} AJP does not support protocol negotiation so this always returns null.
*/
@Override
protected UpgradeProtocol getNegotiatedProtocol(String name) {
return null;
}
/**
* {@inheritDoc} AJP does not support protocol upgrade so this always returns null.
*/
@Override
protected UpgradeProtocol getUpgradeProtocol(String name) {
return null;
}
// ------------------------------------------------- AJP specific properties
// ------------------------------------------ managed in the ProtocolHandler
private boolean ajpFlush = true;
public boolean getAjpFlush() {
return ajpFlush;
}
/**
* Configure whether to aend an AJP flush packet when flushing. A flush packet is a zero byte AJP13 SEND_BODY_CHUNK
* packet. mod_jk and mod_proxy_ajp interpret this as a request to flush data to the client. AJP always does flush
* at the end of the response, so if it is not important, that the packets get streamed up to the client, do not use
* extra flush packets. For compatibility and to stay on the safe side, flush packets are enabled by default.
*
* @param ajpFlush The new flush setting
*/
public void setAjpFlush(boolean ajpFlush) {
this.ajpFlush = ajpFlush;
}
private boolean tomcatAuthentication = true;
/**
* Should authentication be done in the native web server layer, or in the Servlet container ?
*
* @return {@code true} if authentication should be performed by Tomcat, otherwise {@code false}
*/
public boolean getTomcatAuthentication() {
return tomcatAuthentication;
}
public void setTomcatAuthentication(boolean tomcatAuthentication) {
this.tomcatAuthentication = tomcatAuthentication;
}
private boolean tomcatAuthorization = false;
/**
* Should authentication be done in the native web server layer and authorization in the Servlet container?
*
* @return {@code true} if authorization should be performed by Tomcat, otherwise {@code false}
*/
public boolean getTomcatAuthorization() {
return tomcatAuthorization;
}
public void setTomcatAuthorization(boolean tomcatAuthorization) {
this.tomcatAuthorization = tomcatAuthorization;
}
private String secret = null;
/**
* Set the secret that must be included with every request.
*
* @param secret The required secret
*/
public void setSecret(String secret) {
this.secret = secret;
}
protected String getSecret() {
return secret;
}
private boolean secretRequired = true;
public void setSecretRequired(boolean secretRequired) {
this.secretRequired = secretRequired;
}
public boolean getSecretRequired() {
return secretRequired;
}
private Pattern allowedRequestAttributesPattern;
public void setAllowedRequestAttributesPattern(String allowedRequestAttributesPattern) {
this.allowedRequestAttributesPattern = Pattern.compile(allowedRequestAttributesPattern);
}
public String getAllowedRequestAttributesPattern() {
return allowedRequestAttributesPattern.pattern();
}
protected Pattern getAllowedRequestAttributesPatternInternal() {
return allowedRequestAttributesPattern;
}
/**
* AJP packet size.
*/
private int packetSize = Constants.MAX_PACKET_SIZE;
public int getPacketSize() {
return packetSize;
}
public void setPacketSize(int packetSize) {
this.packetSize = Math.max(packetSize, Constants.MAX_PACKET_SIZE);
}
@Override
public int getDesiredBufferSize() {
return getPacketSize() - Constants.SEND_HEAD_LEN;
}
// --------------------------------------------- SSL is not supported in AJP
@Override
public void addSslHostConfig(SSLHostConfig sslHostConfig) {
getLog().warn(sm.getString("ajpprotocol.noSSL", sslHostConfig.getHostName()));
}
@Override
public void addSslHostConfig(SSLHostConfig sslHostConfig, boolean replace) {
getLog().warn(sm.getString("ajpprotocol.noSSL", sslHostConfig.getHostName()));
}
@Override
public SSLHostConfig[] findSslHostConfigs() {
return new SSLHostConfig[0];
}
@Override
public void addUpgradeProtocol(UpgradeProtocol upgradeProtocol) {
getLog().warn(sm.getString("ajpprotocol.noUpgrade", upgradeProtocol.getClass().getName()));
}
@Override
public UpgradeProtocol[] findUpgradeProtocols() {
return new UpgradeProtocol[0];
}
@Override
protected Processor createProcessor() {
return new AjpProcessor(this, getAdapter());
}
@Override
protected Processor createUpgradeProcessor(SocketWrapperBase<?> socket, UpgradeToken upgradeToken) {
throw new IllegalStateException(
sm.getString("ajpprotocol.noUpgradeHandler", upgradeToken.httpUpgradeHandler().getClass().getName()));
}
@Override
public void start() throws Exception {
if (getSecretRequired()) {
String secret = getSecret();
if (secret == null || secret.isEmpty()) {
throw new IllegalArgumentException(sm.getString("ajpprotocol.noSecret"));
}
}
super.start();
}
}