/*
* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.net.httpserver;
import com.sun.net.httpserver.*;
import java.io.*;
import java.nio.*;
import java.nio.channels.*;
import sun.net.www.MessageHeader;
import java.util.*;
import javax.security.auth.*;
import javax.security.auth.callback.*;
import javax.security.auth.login.*;
public class AuthFilter extends Filter {
private Authenticator authenticator;
public AuthFilter (Authenticator authenticator) {
this.authenticator = authenticator;
}
public String description () {
return "Authentication filter";
}
public void setAuthenticator (Authenticator a) {
authenticator = a;
}
public void consumeInput (HttpExchange t) throws IOException {
InputStream i = t.getRequestBody();
byte[] b = new byte [4096];
while (i.read (b) != -1);
i.close ();
}
/**
* The filter's implementation, which is invoked by the server
*/
public void doFilter (HttpExchange t, Filter.Chain chain) throws IOException
{
if (authenticator != null) {
Authenticator.Result r = authenticator.authenticate (t);
if (r instanceof Authenticator.Success) {
Authenticator.Success s = (Authenticator.Success)r;
ExchangeImpl e = ExchangeImpl.get (t);
e.setPrincipal (s.getPrincipal());
chain.doFilter (t);
} else if (r instanceof Authenticator.Retry) {
Authenticator.Retry ry = (Authenticator.Retry)r;
consumeInput (t);
t.sendResponseHeaders (ry.getResponseCode(), -1);
} else if (r instanceof Authenticator.Failure) {
Authenticator.Failure f = (Authenticator.Failure)r;
consumeInput (t);
t.sendResponseHeaders (f.getResponseCode(), -1);
}
} else {
chain.doFilter (t);
}
}
}