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/*
* Copyright (c) 2018, enoa ([email protected])
*
* Licensed 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.
*/
package io.vtom.vertx.pipeline.component.web.client.enoa;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.util.HashMap;
import java.util.Map;
public class SafeURL {
private static Map SYMBOLMAPPING = new HashMap<>();
static {
initSymbolMapping();
}
private static String encodeUrl(String url, Charset charset) {
try {
return URLEncoder.encode(url, charset.name());
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e.getMessage(), e);
}
}
private static void initSymbolMapping() {
// not support utf-16 utf-32
Charset utf8 = Charset.forName("UTF-8");
String[] symbols = {
"~", "!", "@", "#", "$", "^", "&", "*", "(", ")",
"=", "[", "]", "{", "}", "|", "\\", ";", ":",
"'", "\"", ",", "<", ".", ">", "?", "/"
};
for (String symbol : symbols) {
String esym = encodeUrl(symbol, utf8);
SYMBOLMAPPING.put(esym, symbol);
}
}
private static String reductionSymbol(String encodeUrl) {
for (String k : SYMBOLMAPPING.keySet()) {
encodeUrl = encodeUrl.replace(k, SYMBOLMAPPING.get(k));
}
return encodeUrl;
}
public static String encode(String url, Charset charset) {
if (url == null)
throw new IllegalArgumentException("Encode url can not be null.");
return reductionSymbol(encodeUrl(url, charset));
}
public static String decode(String url, Charset charset) {
if (url == null)
throw new IllegalArgumentException("Decode url can not be null.");
try {
return URLDecoder.decode(url, charset.name());
} catch (UnsupportedEncodingException e) {
return url;
}
}
}
