com.aliyuncs.auth.RpcSignatureComposer Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 com.aliyuncs.auth;
import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import com.aliyuncs.http.FormatType;
import com.aliyuncs.http.MethodType;
import com.aliyuncs.utils.ParameterHelper;
public class RpcSignatureComposer implements ISignatureComposer {
private static ISignatureComposer composer = null;
private final static String SEPARATOR = "&";
private RpcSignatureComposer() {
}
public Map refreshSignParameters(Map parameters,
ISigner signer, String accessKeyId, FormatType format) {
Map immutableMap = new HashMap(parameters);
immutableMap.put("Timestamp", ParameterHelper.getISO8601Time(null));
immutableMap.put("SignatureMethod", signer.getSignerName());
immutableMap.put("SignatureVersion",signer.getSignerVersion());
immutableMap.put("SignatureNonce", ParameterHelper.getUniqueNonce());
immutableMap.put("AccessKeyId", accessKeyId);
if (null != format)
immutableMap.put("Format", format.toString());
return immutableMap;
}
public String composeStringToSign(MethodType method, String uriPattern,
ISigner signer, Map queries,
Map headers, Map paths) {
String[] sortedKeys = queries.keySet().toArray(new String[]{});
Arrays.sort(sortedKeys);
StringBuilder canonicalizedQueryString = new StringBuilder();
try {
for(String key : sortedKeys) {
canonicalizedQueryString.append("&")
.append(AcsURLEncoder.percentEncode(key)).append("=")
.append(AcsURLEncoder.percentEncode(queries.get(key)));
}
StringBuilder stringToSign = new StringBuilder();
stringToSign.append(method.toString());
stringToSign.append(SEPARATOR);
stringToSign.append(AcsURLEncoder.percentEncode("/"));
stringToSign.append(SEPARATOR);
stringToSign.append(AcsURLEncoder.percentEncode(
canonicalizedQueryString.toString().substring(1)));
return stringToSign.toString();
} catch (UnsupportedEncodingException exp) {
throw new RuntimeException("UTF-8 encoding is not supported.");
}
}
public static ISignatureComposer getComposer() {
if (null == composer)
composer = new RpcSignatureComposer();
return composer;
}
}