import java.net.*;
import java.io.*;
import java.util.*;
public class Redirector extends Thread {
Socket theConnection;
static String theSite;
public Redirector(Socket s) {
theConnection = s;
}
public static void main(String[] args) {
int thePort;
ServerSocket ss;
try {
theSite = args[0];
}
catch (Exception e) {
theSite = "http://www.ora.com";
}
// trim trailing slash
if (theSite.endsWith("/")) {
theSite = theSite.substring(0, theSite.length()-1);
}
try {
thePort = Integer.parseInt(args[1]);
}
catch (Exception e) {
thePort = 80;
}
try {
ss = new ServerSocket(thePort);
System.out.println("Redirecting connections on port " + ss.getLocalPort()
+ " to " + theSite);
while (true) {
Redirector rd = new Redirector(ss.accept());
rd.start();
}
}
catch (IOException e) {
}
} // end main
public void run() {
try {
PrintStream os = new PrintStream(theConnection.getOutputStream());
DataInputStream is = new DataInputStream(theConnection.getInputStream());
String get = is.readLine();
// The StringTokenizer parses out the requested document
// so a proper URL can be built for the document at
// the new site
StringTokenizer st = new StringTokenizer(get);
st.nextToken(); // the method, e.g. "GET" or "POST"
String theFile = st.nextToken();
// Does the client understand HTTP/1.0 or later?
try {
if (st.nextToken().startsWith("HTTP/")) {
// wait for a blank line
while (true) {
String thisLine = is.readLine();
if (thisLine.trim().equals("")) break;
}
// Send the HTTP 1.0 Header
os.print("HTTP/1.0 302 FOUND\r\n");
Date now = new Date();
os.print("Date: " + now + "\r\n");
os.print("Server: MiniRedirector 1.0\r\n");
os.print("Location: " + theSite + theFile + "\r\n");
os.print("Content-type: text/html\r\n\r\n");
} // end if
} // end try
catch (NoSuchElementException e) {
// No big deal. This client
// doesn't understand HTTP/1.0
// so don't send a MIME header
}
// Not all browsers support redirection so we need to
// produce HTML that says where the document has moved to.
os.println("<HTML><HEAD><TITLE>Document moved</TITLE></HEAD>");
os.println("<BODY><H1>Document moved</H1>");
os.println("The document " + theFile +
" has moved to <A HREF=\"" + theSite + "\">" + theSite +
"</A>. Please update your bookmarks<P>");
os.println("</BODY></HTML>");
theConnection.close();
}
catch (IOException e) {
}
} // end run
}
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