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