mirror of
https://github.com/google/nomulus.git
synced 2025-04-30 12:07:51 +02:00
81 lines
3 KiB
Java
81 lines
3 KiB
Java
// Copyright 2016 The Nomulus Authors. All Rights Reserved.
|
|
//
|
|
// 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 google.registry.testing;
|
|
|
|
import static com.google.common.base.Preconditions.checkNotNull;
|
|
import static java.nio.charset.StandardCharsets.UTF_8;
|
|
|
|
import com.google.common.collect.ArrayListMultimap;
|
|
import com.google.common.collect.ListMultimap;
|
|
import java.io.UnsupportedEncodingException;
|
|
import java.net.URLDecoder;
|
|
|
|
/**
|
|
* Utility class for working with <a href="http://goo.gl/OQEc8">application/x-www-form-urlencoded
|
|
* content type</a> data.
|
|
*/
|
|
public final class UriParameters {
|
|
|
|
/**
|
|
* Constructs a new parameter map populated with parameters parsed from the specified query string
|
|
* using the specified encoding.
|
|
*
|
|
* @param query the query string, e.g., {@code "q=flowers&n=20"}
|
|
* @return a mutable parameter map representing the query string
|
|
*/
|
|
public static ListMultimap<String, String> parse(String query) {
|
|
checkNotNull(query);
|
|
ArrayListMultimap<String, String> map = ArrayListMultimap.create();
|
|
if (!query.isEmpty()) {
|
|
int start = 0;
|
|
while (start <= query.length()) {
|
|
// Find the end of the current parameter.
|
|
int ampersandIndex = query.indexOf('&', start);
|
|
if (ampersandIndex == -1) {
|
|
ampersandIndex = query.length();
|
|
}
|
|
int equalsIndex = query.indexOf('=', start);
|
|
if (equalsIndex > ampersandIndex) {
|
|
// Equal is in the next parameter, so this parameter has no value.
|
|
equalsIndex = -1;
|
|
}
|
|
int paramNameEndIndex = (equalsIndex == -1) ? ampersandIndex : equalsIndex;
|
|
String name = decodeString(query, start, paramNameEndIndex);
|
|
String value = (equalsIndex == -1)
|
|
? ""
|
|
: decodeString(query, equalsIndex + 1, ampersandIndex);
|
|
map.put(name, value);
|
|
start = ampersandIndex + 1;
|
|
}
|
|
}
|
|
return map;
|
|
}
|
|
|
|
private static String decodeString(String str, int start, int end) {
|
|
try {
|
|
return URLDecoder.decode(str.substring(start, end), UTF_8.name());
|
|
} catch (IllegalArgumentException iae) {
|
|
// According to the javadoc of URLDecoder, when the input string is
|
|
// illegal, it could either leave the illegal characters alone or throw
|
|
// an IllegalArgumentException! To deal with both consistently, we
|
|
// ignore IllegalArgumentException and just return the original string.
|
|
return str.substring(start, end);
|
|
} catch (UnsupportedEncodingException e) {
|
|
throw new RuntimeException(e);
|
|
}
|
|
}
|
|
|
|
private UriParameters() {}
|
|
}
|