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src/Acme/Serve/ServeUtils.java Normal file
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// ServeUtils - static utilities for minimal Java HTTP server
//
// Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>. 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.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// Visit the ACME Labs Java page for up-to-date versions of this and other
// fine Java utilities: http://www.acme.com/java/
package Acme.Serve;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
/// Static utilities for minimal Java HTTP server.
// <P>
// <A HREF="/resources/classes/Acme/Serve/ServeUtils.java">Fetch the software.</A><BR>
// <A HREF="/resources/classes/Acme.tar.gz">Fetch the entire Acme package.</A>
public class ServeUtils
{
// Server identification.
public static final String serverName = "Hop";
public static final String serverVersion = "1.1 p1";
public static final String serverUrl = "http://helma.org/";
/// Write a standard-format HTML address for this server.
public static void writeAddress( OutputStream o ) throws IOException
{
PrintStream p = new PrintStream( o );
p.println(
"<ADDRESS><A HREF=\"" + serverUrl + "\">" +
serverName + " " + serverVersion + "</A></ADDRESS>" );
}
/// Get a cookie of a given name.
public static String getCookie( HttpServletRequest req, String name )
{
String h = req.getHeader( "Cookie" );
if ( h == null )
return null;
StringTokenizer st = new StringTokenizer( h, "; " );
while ( st.hasMoreTokens() )
{
String tk = st.nextToken();
int eq = tk.indexOf( '=' );
String n, v;
if ( eq == -1 )
{
n = tk;
v = "";
}
else
{
n = tk.substring( 0, eq );
v = tk.substring( eq + 1 );
}
if ( name.equals( n ) )
return v;
}
return null;
}
/// Set a cookie.
public static void setCookie( HttpServletResponse res, String name, String value )
{
res.setHeader( "Set-Cookie", name + "=" + value );
}
}