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 package org.apache.hc.client5.http.impl;
28
29 import java.net.URISyntaxException;
30 import java.nio.charset.StandardCharsets;
31 import java.util.List;
32
33 import org.apache.hc.core5.annotation.Internal;
34 import org.apache.hc.core5.http.HttpRequest;
35 import org.apache.hc.core5.net.PercentCodec;
36 import org.apache.hc.core5.net.URIBuilder;
37
38 /**
39 * Protocol support methods. For internal use only.
40 *
41 * @since 5.2
42 */
43 @Internal
44 public final class RequestSupport {
45
46 public static String extractPathPrefix(final HttpRequest request) {
47 final String path = request.getPath();
48 try {
49 final URIBuilder uriBuilder = new URIBuilder(path);
50 uriBuilder.setFragment(null);
51 uriBuilder.clearParameters();
52 uriBuilder.normalizeSyntax();
53 final List<String> pathSegments = uriBuilder.getPathSegments();
54
55 if (!pathSegments.isEmpty()) {
56 pathSegments.remove(pathSegments.size() - 1);
57 }
58 if (pathSegments.isEmpty()) {
59 return "/";
60 } else {
61 final StringBuilder buf = new StringBuilder();
62 buf.append('/');
63 for (final String pathSegment : pathSegments) {
64 PercentCodec.encode(buf, pathSegment, StandardCharsets.US_ASCII);
65 buf.append('/');
66 }
67 return buf.toString();
68 }
69 } catch (final URISyntaxException ex) {
70 return path;
71 }
72 }
73
74 }