2 * ============LICENSE_START=======================================================
3 * oom-certservice-client
4 * ================================================================================
5 * Copyright (C) 2020 Nokia. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 package org.onap.oom.certservice.client.configuration.validation.csr;
23 * Compliant with the RFC3986
25 final class UriValidator {
27 private static final String SCHEME = "([A-Za-z][A-Za-z0-9+\\-.]*):";
29 private static final String OR = "|";
31 private static final String AUTHORITY_WITH_PATH = "?:(//)(?:((?:[A-Za-z0-9\\-._~!$&'()*+,;=:]|%[0-9A-Fa-f]{2})*)"
32 + "@)?((?:\\[(?:(?:(?:(?:[0-9A-Fa-f]{1,4}:){6}|::(?:[0-9A-Fa-f]{1,4}:){5}|(?:[0-9A-Fa-f]{1,4})?::"
33 + "(?:[0-9A-Fa-f]{1,4}:){4}|(?:(?:[0-9A-Fa-f]{1,4}:){0,1}[0-9A-Fa-f]{1,4})?::(?:[0-9A-Fa-f]{1,4}:){3}|(?:"
34 + "(?:[0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})?::(?:[0-9A-Fa-f]{1,4}:){2}|(?:(?:[0-9A-Fa-f]{1,4}:){0,"
35 + "3}[0-9A-Fa-f]{1,4})?::[0-9A-Fa-f]{1,4}:|(?:(?:[0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})?::)"
36 + "(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{1,4}|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}"
37 + "(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))|(?:(?:[0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})?::[0-9A-Fa-f]{1,"
38 + "4}|(?:(?:[0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})?::)|[Vv][0-9A-Fa-f]+\\.[A-Za-z0-9\\-._~!$&'()*+,;=:]+)"
39 + "\\]|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|"
40 + "(?:[A-Za-z0-9\\-._~!$&'()*+,;=]|%[0-9A-Fa-f]{2})*))(?::([0-9]*))?((?:/(?:[A-Za-z0-9\\-._~!$&'()*+,;"
41 + "=:@]|%[0-9A-Fa-f]{2})*)*)";
43 private static final String PATH_BEGIN_WITH_SLASH = "/((?:(?:[A-Za-z0-9\\-._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})+(?:/"
44 + "(?:[A-Za-z0-9\\-._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})*)*)?)";
46 private static final String PATH_WITHOUT_SLASH = "((?:[A-Za-z0-9\\-._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})+(?:/"
47 + "(?:[A-Za-z0-9\\-._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})*)*)";
49 private static final String QUERY = "(?:\\?((?:[A-Za-z0-9\\-._~!$&'()*+,;=:@/?]|%[0-9A-Fa-f]{2})*))?";
51 private static final String FRAGMENT = "(?:\\#((?:[A-Za-z0-9\\-._~!$&'()*+,;=:@/?]|%[0-9A-Fa-f]{2})*))?";
54 * URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
56 * hier-part = "//" authority path-abempty / path-absolute / path-rootless / path-empty
58 private static final String RFC3986_URI_MATCH_PATTERN =
59 SCHEME + "(" + AUTHORITY_WITH_PATH + OR + PATH_BEGIN_WITH_SLASH + OR + PATH_WITHOUT_SLASH + OR + "" + ")"
62 private UriValidator() {
65 static boolean isValid(String uri) {
66 return uri.matches(RFC3986_URI_MATCH_PATTERN);