Any way to turn off quips in OOWeb?

Posted by Misha Koshelev on Stack Overflow See other posts from Stack Overflow or by Misha Koshelev
Published on 2010-06-03T00:03:14Z Indexed on 2010/06/03 0:04 UTC
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http://ooweb.sourceforge.net/tutorial.html

Not really a question, but I can't seem to stop writing stuff like this. Maybe someone will find it useful.

I know rewriting an HTTP server is not the way to turn off the quips ;)

/* Copyright 2010 Misha Koshelev. All Rights Reserved. */
package com.mksoft.common;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;

import java.net.URLDecoder;

import java.text.SimpleDateFormat;

import java.util.Date;
import java.util.LinkedHashMap;

import java.net.ServerSocket;
import java.net.Socket;

/**
 * Simple HTTP Server.
 *
 * @author Misha Koshelev
 */
public class HttpServer extends Thread {
    /*
     * Constants
     */

    /**
     * 404 Not Found Result
     */
    protected final static String result404NotFound="<html><head><title>404 Not Found</title></head><body bgcolor='#ffffff'><h1>404 Not Found</h1></body></html>";

    /*
     * Variables
     */

    /** 
     * Port on which HTTP server handles requests.
     */
    protected int port;
    public int getPort() { return port; }
    public void setPort(int _port) { port=_port; }

    /*
     * Constructors
     */
    public HttpServer(int _port) {
 setPort(_port);
    }

    /*
     * Helpers
     */

    /**
     * Errors
     */
    protected void error(String message) {
 System.err.println(message);
 System.err.flush();
    }

    /**
     * Debugging
     */
    protected boolean debugOutput=true;
    protected void debug(String message) {
 if (debugOutput) {
     error(message);
 }
    }

    /**
     * Lock object 
     */
    private Object lock=new Object();

    /**
     * Should we quit?
     */
    protected boolean doQuit=false;    

    /**
     * Are we done?
     */
    protected boolean areWeDone=false;

    /**
     * Process POST request headers
     */
    protected String processPostRequest(String url,LinkedHashMap<String,String> headers,String inputLine) {
 debug("HttpServer.processPostRequest: url=\""+url);
 if (debugOutput) {
     for (String key: headers.keySet()) {
  debug("HttpServer.processPostRequest: headers."+key+"=\""+headers.get(key)+"\"");
     }
 }
 debug("HttpServer.processPostRequest: inputLine=\""+inputLine+"\"");
 try {
     inputLine=new URLDecoder().decode(inputLine,"UTF-8");
 } catch (UnsupportedEncodingException uee) {
     uee.printStackTrace();
 }

 String[] keyValues=inputLine.split("&");
 LinkedHashMap<String,String> post=new LinkedHashMap<String,String>();
 for (int i=0;i<keyValues.length;i++) {
     String keyValue=keyValues[i];
     int equals=keyValue.indexOf('=');
     String key=keyValue.substring(0,equals);
     String value=keyValue.substring(equals+1);
     post.put(key,value);
 }
 return post(url,headers,post);
    }

    /**
     * Server loop (here for exception handling purposes)
     */
    protected void serverLoop() throws IOException {
 /* Start server socket */
 ServerSocket serverSocket=null;
 try {
     serverSocket=new ServerSocket(getPort());
 } catch (IOException ioe) {
     ioe.printStackTrace();
     System.exit(1);
 }

 Socket clientSocket=null;
 while (true) {
     /* Quit if necessary */
     if (doQuit) {
  break;
     }

     /* Accept incoming connections */
     try {
  clientSocket=serverSocket.accept();
     } catch (IOException ioe) {
  ioe.printStackTrace();
  System.exit(1);
     }

     /* Read request */
     BufferedReader in=null;
     String inputLine=null;
     String firstLine=null;
     String blankLine=null;
     LinkedHashMap<String,String> headers=new LinkedHashMap<String,String>();
     try {
  in=new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
  while (true) {
      if (blankLine==null) {
   inputLine=in.readLine();
      } else {
   /* POST request, read Content-length bytes */
   int contentLength=new Integer(headers.get("Content-Length")).intValue();
   StringBuilder sb=new StringBuilder(contentLength);
   for (int i=0;i<contentLength;i++) {
       sb.append((char)in.read());
   }
   inputLine=sb.toString();
   break;
      }
      if (firstLine==null) {
   firstLine=inputLine;
      } else if (blankLine==null) {
   if (inputLine.equals("")) {
       if (firstLine.startsWith("GET ")) {
    break;
       }
       blankLine=inputLine;
   } else {
       int colon=inputLine.indexOf(": ");
       String key=inputLine.substring(0,colon);
       String value=inputLine.substring(colon+2);
       headers.put(key,value);
   }
      }
  }
     } catch (IOException ioe) {
  ioe.printStackTrace();
     }

     /* Process request */
     String result=null;
     firstLine=firstLine.replaceAll(" HTTP/.*","");
     if (firstLine.startsWith("GET ")) {
  result=get(firstLine.replaceFirst("GET ",""),headers);  
     } else if (firstLine.startsWith("POST ")) {
  result=processPostRequest(firstLine.replaceFirst("POST ",""),headers,inputLine);
     } else {
  error("HttpServer.ServerLoop: Unhandled request \""+firstLine+"\"");
     }
     debug("HttpServer.ServerLoop: result=\""+result+"\"");

     /* Send response */
     PrintWriter out=null;
     try {
  out=new PrintWriter(clientSocket.getOutputStream(),true);
     } catch (IOException ioe) {
  ioe.printStackTrace();
     }
     if (result!=null) {
  out.println("HTTP/1.1 200 OK");
     } else {
  out.println("HTTP/1.0 404 Not Found");
  result=result404NotFound;
     }
     Date now=new Date();
     out.println("Date: "+new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss z").format(now));
     out.println("Content-Type: text/html; charset=UTF-8");
     out.println("Content-Length: "+result.length());
     out.println("");
     out.print(result);

     /* Clean up */
     out.close();
     if (in!=null) {
  in.close();
     }
     clientSocket.close();
 }

 serverSocket.close();
 areWeDone=true;
 synchronized(lock) {
     lock.notifyAll();
 }
    } 

    /*
     * Methods
     */

    /**
     * Run server on port specified in constructor.
     */
    public void run() {
 try {
     serverLoop();
 } catch (IOException ioe) {
     ioe.printStackTrace();
     System.exit(1);
 }
    } 

    /**
     * Process GET request (should be overwritten).
     */
    public String get(String url,LinkedHashMap<String,String> headers) {
 debug("HttpServer.get: url=\""+url+"\"");
 if (debugOutput) {
     for (String key: headers.keySet()) {
  debug("HttpServer.get: headers."+key+"=\""+headers.get(key)+"\"");
     }
 }
 if (url.equals("/")) {
     return "<html><head><title>HttpServer GET Test Page</title></head>\r\n"+
  "<body bgcolor='#ffffff'>\r\n"+
  "<center><h1>HttpServer GET Test Page</h1></center>\r\n"+
  "<hr />\r\n"+
  "<center><table>\r\n"+
  "<form method='post' action='/'>\r\n"+
  "<tr><td align=right>Test 1:</td>\r\n"+
  "    <td><input type='text' name='text 1' value='test me !!! !@#$'></td></tr>\r\n"+
  "<tr><td align=right>Test 2:</td>\r\n"+
  "    <td><input type='text' name='text 2' value='type smthng'></td></tr>\r\n"+
  "<tr><td>&nbsp;</td>\r\n"+
  "    <td align=right><input type='submit' value='Submit'></td></tr>\r\n"+
  "</form>\r\n"+
  "</table></center>\r\n"+
  "<hr />\r\n"+
  "<center><a href='/quit'>Shutdown Server</a></center>\r\n"+
  "</html>";
 } else if (url.equals("/quit")) {
     quit();
     return "";
 } else {
     return null;
 }
    }

    /**
     * Process POST request (should be overwritten).
     */
    public String post(String url,LinkedHashMap<String,String> headers,LinkedHashMap<String,String> post) {
 debug("HttpServer.post: url=\""+url+"\"");
 if (debugOutput) {
     for (String key: headers.keySet()) {
  debug("HttpServer.post: headers."+key+"=\""+headers.get(key)+"\"");
     }
 }
 if (url.equals("/")) {
     String result="<html><head><title>HttpServer Post Test Page</title></head>\r\n"+
  "<body bgcolor='#ffffff'>\r\n"+
  "<center><h1>HttpServer Post Test Page</h1></center>\r\n"+
  "<hr />\r\n"+
  "<center><table>\r\n"+
  "<tr><th>Key</th><th>Value</th></tr>\r\n";     
     for (String key: post.keySet()) {
  result+="<tr><td align=right>"+key+"</td><td align=left>"+post.get(key)+"</td></tr>\r\n";
     }
     result+="</table></center>\r\n"+
  "</html>";
     return result;
 } else {
     return null;
 }
    }

    /**
     * Wait for server to quit.
     */
    public void waitForCompletion() {
 while (areWeDone==false) {
     synchronized(lock) {
  try {
      lock.wait();
  } catch (InterruptedException ie) {
  }
     }
 }
    }

    /**
     * Shutdown server.
     */
    public void quit() {
 doQuit=true;
    }
}

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