mirror of
https://github.com/alibaba/druid.git
synced 2023-03-04 19:17:16 +00:00
74 lines
2.2 KiB
Java
74 lines
2.2 KiB
Java
/*
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* Copyright 1999-2101 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.druid.util;
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public class ServletPathMatcher implements PatternMatcher {
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private final static ServletPathMatcher INSTANCE = new ServletPathMatcher();
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public static ServletPathMatcher getInstance() {
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return INSTANCE;
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}
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/**
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* <p>
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* three type: endsWithMatch(eg. /xxx*=/xxx/xyz), startsWithMatch(eg.
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* *.xxx=abc.xxx), equals(eg. /xxx=/xxx).
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* </p>
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* <b>Notice</b>: *xxx* will match *xxxyyyy. endsWithMatch first.
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*/
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@Override
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public boolean matches(String pattern, String source) {
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if (pattern == null || source == null) {
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return false;
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}
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pattern = pattern.trim();
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source = source.trim();
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if (pattern.endsWith("*")) {
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// pattern: /druid* source:/druid/index.html
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int length = pattern.length() - 1;
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if (source.length() >= length) {
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if (pattern.substring(0, length).equals(
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source.substring(0, length))) {
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return true;
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}
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}
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} else if (pattern.startsWith("*")) {
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// pattern: *.html source:/xx/xx.html
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int length = pattern.length() - 1;
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if (source.length() >= length
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&& source.endsWith(pattern.substring(1))) {
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return true;
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}
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} else if (pattern.contains("*")) {
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// pattern: /druid/*/index.html source:/druid/admin/index.html
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int start = pattern.indexOf("*");
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int end = pattern.lastIndexOf("*");
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if (source.startsWith(pattern.substring(0, start))
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&& source.endsWith(pattern.substring(end + 1))) {
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return true;
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}
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} else {
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// pattern: /druid/index.html source:/druid/index.html
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if (pattern.equals(source)) {
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return true;
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}
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}
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return false;
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}
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}
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