93 lines
3.1 KiB
Java
93 lines
3.1 KiB
Java
// ServeUtils - static utilities for minimal Java HTTP server
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//
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// Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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// SUCH DAMAGE.
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//
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// Visit the ACME Labs Java page for up-to-date versions of this and other
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// fine Java utilities: http://www.acme.com/java/
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package Acme.Serve;
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import java.io.*;
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import java.util.*;
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import javax.servlet.*;
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import javax.servlet.http.*;
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/// Static utilities for minimal Java HTTP server.
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// <P>
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// <A HREF="/resources/classes/Acme/Serve/ServeUtils.java">Fetch the software.</A><BR>
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// <A HREF="/resources/classes/Acme.tar.gz">Fetch the entire Acme package.</A>
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public class ServeUtils
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{
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// Server identification.
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public static final String serverName = "Hop";
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public static final String serverVersion = "1.1 p1";
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public static final String serverUrl = "http://helma.org/";
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/// Write a standard-format HTML address for this server.
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public static void writeAddress( OutputStream o ) throws IOException
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{
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PrintStream p = new PrintStream( o );
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p.println(
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"<ADDRESS><A HREF=\"" + serverUrl + "\">" +
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serverName + " " + serverVersion + "</A></ADDRESS>" );
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}
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/// Get a cookie of a given name.
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public static String getCookie( HttpServletRequest req, String name )
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{
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String h = req.getHeader( "Cookie" );
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if ( h == null )
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return null;
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StringTokenizer st = new StringTokenizer( h, "; " );
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while ( st.hasMoreTokens() )
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{
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String tk = st.nextToken();
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int eq = tk.indexOf( '=' );
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String n, v;
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if ( eq == -1 )
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{
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n = tk;
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v = "";
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}
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else
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{
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n = tk.substring( 0, eq );
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v = tk.substring( eq + 1 );
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}
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if ( name.equals( n ) )
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return v;
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}
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return null;
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}
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/// Set a cookie.
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public static void setCookie( HttpServletResponse res, String name, String value )
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{
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res.setHeader( "Set-Cookie", name + "=" + value );
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}
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}
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