1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.hc.client5.testing.auth;
29
30 import java.nio.charset.StandardCharsets;
31
32 import org.apache.commons.codec.BinaryDecoder;
33 import org.apache.commons.codec.DecoderException;
34 import org.apache.commons.codec.binary.Base64;
35 import org.apache.hc.client5.http.auth.StandardAuthScheme;
36 import org.apache.hc.core5.http.HttpException;
37 import org.apache.hc.core5.http.ProtocolException;
38
39 public class BasicAuthTokenExtractor {
40
41 public String extract(final String challengeResponse) throws HttpException {
42 if (challengeResponse != null) {
43 final int i = challengeResponse.indexOf(' ');
44 if (i == -1) {
45 throw new ProtocolException("Invalid challenge response: " + challengeResponse);
46 }
47 final String schemeName = challengeResponse.substring(0, i);
48 if (schemeName.equalsIgnoreCase(StandardAuthScheme.BASIC)) {
49 final String s = challengeResponse.substring(i + 1).trim();
50 try {
51 final byte[] credsRaw = s.getBytes(StandardCharsets.US_ASCII);
52 final BinaryDecoder codec = new Base64();
53 return new String(codec.decode(credsRaw), StandardCharsets.US_ASCII);
54 } catch (final DecoderException ex) {
55 throw new ProtocolException("Malformed Basic credentials");
56 }
57 }
58 }
59 return null;
60 }
61
62 }