ajp12connectionhandler.java

低版本的tomcat 对于有些老版本的应用还真的需要老版的中间件

/*
 *
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact [e-mail].
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 * 5. Products derived from this software may not be called "Apache"
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * [Additional notices, if required by prior licensing conditions]
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 */


/*
  Based on Ajp11ConnectionHandler and Ajp12 implementation of JServ
*/

package org.apache.tomcat.service.connector;

import java.io.*;
import java.net.*;
import java.util.*;
import org.apache.tomcat.core.*;
import org.apache.tomcat.util.*;
import org.apache.tomcat.service.http.*;
import org.apache.tomcat.service.http.HttpResponseAdapter;
import org.apache.tomcat.service.http.HttpRequestAdapter;
import org.apache.tomcat.service.*;
import javax.servlet.*;
import javax.servlet.http.*;

/* Deprecated - must be rewriten to the connector model.
 */
public class Ajp12ConnectionHandler implements  TcpConnectionHandler {
    static StringManager sm = StringManager.getManager("org.apache.tomcat.service");

    ContextManager contextM;

    public Ajp12ConnectionHandler() {
    }

    public Object[] init() {
	Object thData[]=new Object[2];
	AJP12RequestAdapter reqA=new AJP12RequestAdapter();
	AJP12ResponseAdapter resA=new AJP12ResponseAdapter();
	contextM.initRequest( reqA, resA );
	thData[0]=reqA;
	thData[1]=resA;

	return  thData;
    }

    public void setAttribute(String name, Object value ) {
	if("context.manager".equals(name) ) {
	    contextM=(ContextManager)value;
	}
    }

    public void setServer( Object contextM ) {
	this.contextM=(ContextManager )contextM;
    }

    public void processConnection(TcpConnection connection, Object[] thData) {
        try {
	    // XXX - Add workarounds for the fact that the underlying
	    // serverSocket.accept() call can now time out.  This whole
	    // architecture needs some serious review.
	    if (connection == null)
		return;
	    Socket socket=connection.getSocket();
	    if (socket == null)
		return;

	    socket.setSoLinger( true, 100);
	    //	    socket.setSoTimeout( 1000); // or what ?

	    AJP12RequestAdapter reqA=null;
	    AJP12ResponseAdapter resA=null;
	    
	    if( thData != null ) {
		reqA=(AJP12RequestAdapter)thData[0];
		resA=(AJP12ResponseAdapter)thData[1];
		if( reqA!=null ) reqA.recycle();
		if( resA!=null ) resA.recycle();
	    }

	    if( reqA==null || resA==null ) {
		reqA = new AJP12RequestAdapter();
		resA=new AJP12ResponseAdapter();
		contextM.initRequest( reqA, resA );
	    }

	    InputStream in=socket.getInputStream();
	    OutputStream out=socket.getOutputStream();

	    reqA.setSocket( socket);
	    resA.setOutputStream(out);

	    reqA.readNextRequest();
	    if( reqA.isPing )
		return;
	    if( reqA.shutdown )
		return;
	    if (resA.getStatus() >= 400) {
		resA.finish();
		socket.close();
		return;
	    }

	    // resolve the server that we are for
	    int contentLength = reqA.getMimeHeaders().getIntHeader("content-length");
	    if (contentLength != -1) {
		BufferedServletInputStream sis =
		    (BufferedServletInputStream)reqA.getInputStream();
		sis.setLimit(contentLength);
	    }

	    contextM.service( reqA, resA );
	    //resA.finish(); // is part of contextM !
	    socket.close();
	} catch (Exception e) {
            // XXX
	    // this isn't what we want, we want to log the problem somehow
	    System.out.println("HANDLER THREAD PROBLEM: " + e);
	    e.printStackTrace();
	}
    }

}

class AJP12RequestAdapter extends RequestImpl {
    static StringManager sm = StringManager.getManager("org.apache.tomcat.service");
    Socket socket;
    InputStream sin;
    Ajpv12InputStream ajpin;
    boolean shutdown=false;
    boolean isPing=false;
    boolean doLog;

    public int doRead() throws IOException {
	return ajpin.read();
    }

    public  int doRead( byte b[], int off, int len ) throws IOException {
	return ajpin.read(b,off,len);
    }

    void log( String s ) {
	contextM.log( s );
    }
    
    public AJP12RequestAdapter() {
    }

    public void setContextManager(ContextManager cm ) {
	contextM=cm;
	doLog=contextM.getDebug() > 10;
    }

    public void setSocket( Socket s ) throws IOException {
	this.socket = s;
	sin = s.getInputStream();
	in = new BufferedServletInputStream( this );
	ajpin = new Ajpv12InputStream(sin);
    }
    
    public AJP12RequestAdapter(ContextManager cm, Socket s) throws IOException {
	this.socket = s;
	this.contextM=cm;
	sin = s.getInputStream();
	in = new BufferedServletInputStream( this );
	ajpin = new Ajpv12InputStream(sin);
	doLog=contextM.getDebug() > 10;
    }

    protected void readNextRequest() throws IOException {
	String dummy,token1,token2;
	int marker;
	int signal;
//      Hashtable env_vars=new Hashtable();

	try {
	    boolean more=true;
            while (more) {
		marker = ajpin.read();
		switch (marker) {
		case 0:       //NOP marker useful for testing if stream is OK
		    break;
		    
		case 1: //beginning of request
		    method = ajpin.readString(null);              //Method
		    
		    contextPath = ajpin.readString(null);               //Zone
		    // GS, the following commented line causes the Apache + Jserv + Tomcat
		    // combination to hang with a 404!!!
		    // if("ROOT".equals( contextPath ) ) contextPath="";
		    if("ROOT".equalsIgnoreCase( contextPath ) ) contextPath=null;
		    if( doLog ) log("AJP: CP=" + contextPath);
		    
		    if( contextPath!= null )
			context=contextM.getContext( contextPath );
		    if( doLog ) log("AJP: context=" + context );
		    
		    servletName = ajpin.readString(null);         //Servlet
		    if( doLog ) log("AJP: servlet=" + servletName );
		    
		    serverName = ajpin.readString(null);            //Server hostname
		    if( doLog ) log("AJP: serverName=" + serverName );
		    
		    dummy = ajpin.readString(null);               //Apache document root
		    
		    pathInfo = ajpin.readString(null);               //Apache parsed path-info
		    if( doLog ) log("AJP: PI=" + pathInfo );
		    
		    // XXX Bug in mod_jserv !!!!!
		    pathTranslated = ajpin.readString(null);               //Apache parsed path-translated
		    if( doLog ) log("AJP: PT=" + pathTranslated );
		    
		    queryString = ajpin.readString(null);         //query string
		    if( doLog ) log("AJP: QS=" + queryString );
		    
		    remoteAddr = ajpin.readString("");            //remote address
		    if( doLog ) log("AJP: RA=" + remoteAddr );
		    
		    remoteHost = ajpin.readString("");            //remote host
            if( doLog ) log("AJP: RH=" + remoteHost );
		    
		    remoteUser = ajpin.readString(null);                 //remote user
		    if( doLog ) log("AJP: RU=" + remoteUser);
		    
		    authType = ajpin.readString(null);                 //auth type
		    if( doLog ) log("AJP: AT=" + authType);
		    
		    dummy = ajpin.readString(null);                 //remote port
		    
		    method = ajpin.readString(null);                //request method
		    if( doLog ) log("AJP: Meth=" + method );
		    
		    requestURI = ajpin.readString("");             //request uri
		    if( doLog ) log("AJP: URI: " + requestURI + " CP:" + contextPath + " LP: " + lookupPath);

		    // XXX don't set lookup path - problems with URL rewriting.