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-rw-r--r--src/org/apache/http/impl/auth/AuthSchemeBase.java128
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diff --git a/src/org/apache/http/impl/auth/AuthSchemeBase.java b/src/org/apache/http/impl/auth/AuthSchemeBase.java
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--- a/src/org/apache/http/impl/auth/AuthSchemeBase.java
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-/*
- * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/auth/AuthSchemeBase.java $
- * $Revision: 653867 $
- * $Date: 2008-05-06 11:17:29 -0700 (Tue, 06 May 2008) $
- *
- * ====================================================================
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- *
- */
-
-package org.apache.http.impl.auth;
-
-import org.apache.http.FormattedHeader;
-import org.apache.http.Header;
-import org.apache.http.auth.AUTH;
-import org.apache.http.auth.AuthScheme;
-import org.apache.http.auth.MalformedChallengeException;
-import org.apache.http.protocol.HTTP;
-import org.apache.http.util.CharArrayBuffer;
-
-/**
- * Abstract authentication scheme class that serves as a basis
- * for all authentication schemes supported by HttpClient. This class
- * defines the generic way of parsing an authentication challenge. It
- * does not make any assumptions regarding the format of the challenge
- * nor does it impose any specific way of responding to that challenge.
- *
- * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
-*/
-public abstract class AuthSchemeBase implements AuthScheme {
-
- /**
- * Flag whether authenticating against a proxy.
- */
- private boolean proxy;
-
- public AuthSchemeBase() {
- super();
- }
-
- /**
- * Processes the given challenge token. Some authentication schemes
- * may involve multiple challenge-response exchanges. Such schemes must be able
- * to maintain the state information when dealing with sequential challenges
- *
- * @param header the challenge header
- *
- * @throws MalformedChallengeException is thrown if the authentication challenge
- * is malformed
- */
- public void processChallenge(final Header header) throws MalformedChallengeException {
- if (header == null) {
- throw new IllegalArgumentException("Header may not be null");
- }
- String authheader = header.getName();
- if (authheader.equalsIgnoreCase(AUTH.WWW_AUTH)) {
- this.proxy = false;
- } else if (authheader.equalsIgnoreCase(AUTH.PROXY_AUTH)) {
- this.proxy = true;
- } else {
- throw new MalformedChallengeException("Unexpected header name: " + authheader);
- }
-
- CharArrayBuffer buffer;
- int pos;
- if (header instanceof FormattedHeader) {
- buffer = ((FormattedHeader) header).getBuffer();
- pos = ((FormattedHeader) header).getValuePos();
- } else {
- String s = header.getValue();
- if (s == null) {
- throw new MalformedChallengeException("Header value is null");
- }
- buffer = new CharArrayBuffer(s.length());
- buffer.append(s);
- pos = 0;
- }
- while (pos < buffer.length() && HTTP.isWhitespace(buffer.charAt(pos))) {
- pos++;
- }
- int beginIndex = pos;
- while (pos < buffer.length() && !HTTP.isWhitespace(buffer.charAt(pos))) {
- pos++;
- }
- int endIndex = pos;
- String s = buffer.substring(beginIndex, endIndex);
- if (!s.equalsIgnoreCase(getSchemeName())) {
- throw new MalformedChallengeException("Invalid scheme identifier: " + s);
- }
-
- parseChallenge(buffer, pos, buffer.length());
- }
-
- protected abstract void parseChallenge(
- CharArrayBuffer buffer, int pos, int len) throws MalformedChallengeException;
-
- /**
- * Returns <code>true</code> if authenticating against a proxy, <code>false</code>
- * otherwise.
- *
- * @return <code>true</code> if authenticating against a proxy, <code>false</code>
- * otherwise
- */
- public boolean isProxy() {
- return this.proxy;
- }
-
-}