阿里云域名解析api调用：签名机制中数据字典ascii编码排序 C#版本

后台方法：

string AccessKeyId = ""; //密钥ID
string AccessKeySecret = "";
string Format = "JSON"; //返回值的类型
string Version = "2015-01-09"; //API版本号
string Signature = ""; //签名结果串
string SignatureMethod = "HMAC-SHA1"; //签名方式，目前支持HMAC-SHA1
string Timestamp = DateTime.UtcNow.ToString("yyyy-MM-ddThh:mm:ssZ"); //请求的时间戳日期格式按照ISO8601标准表示，并需要使用UTC时间 YYYY-MM-DDThh:mm:ssZ;
string SignatureVersion = "1.0"; //签名算法版本
string SignatureNonce = Guid.NewGuid().ToString(); //唯一随机数，用于防止网络重放攻击。用户在不同请求间要使用不同的随机数值

string InterFaceUrl = "http://alidns.aliyuncs.com/"; //请求路径

/// <summary>
/// 计算签名
/// </summary>
public void ComputeSignature( Dictionary<string, string> ditParam,string method = "GET")
{
BuildParameters(ditParam);

//按ascii码排序
Dictionary<string, string> asciiDit = new Dictionary<string, string>();
string[] KeyArr = ditParam.Keys.ToArray();
Array.Sort(KeyArr, string.CompareOrdinal);
foreach (var key in KeyArr)
{
string value = ditParam[key];
asciiDit.Add(key, value);
}

//计算签名
var canonicalizedQueryString = string.Join("&",
asciiDit.Select(x => PercentEncode(x.Key) + "=" + PercentEncode(x.Value)));

var stringToSign = method.ToString().ToUpper() + "&" + PercentEncode("/") + "&" + PercentEncode(canonicalizedQueryString);
var keyBytes = Encoding.UTF8.GetBytes(AccessKeySecret + "&");
var hmac = new HMACSHA1(keyBytes);
var hashBytes = hmac.ComputeHash(Encoding.UTF8.GetBytes(stringToSign));
Signature = Convert.ToBase64String(hashBytes);

ditParam.Add("Signature", Signature);
}

//获取公共参数和相关方法中的参数
private void BuildParameters(Dictionary<string, string> ditParam)
{
ditParam.Add("Format", Format.ToUpper());
ditParam.Add("Version", Version);
ditParam.Add("AccessKeyId", AccessKeyId);
ditParam.Add("Timestamp", Timestamp);
ditParam.Add("SignatureMethod", SignatureMethod);
ditParam.Add("SignatureVersion", SignatureVersion);
ditParam.Add("SignatureNonce", SignatureNonce);

}

private static string PercentEncode(string value)
{
return UpperCaseUrlEncode(value)
.Replace("/", "%2F")
.Replace("+", "%20")
.Replace("*", "%2A")
.Replace("%7E", "~")
.Replace("!", "%21")
.Replace("'", "%27")
.Replace("(", "%28")
.Replace(")", "%29");
}

private static string UpperCaseUrlEncode(string s)

{

// C# 的 HttpUtility.UrlEncode() 编码得到的形如 %xx%xx的内容是小写的，Java 的是大写的。

char[] temp = HttpUtility.UrlEncode(s).ToCharArray();

for (int i = 0; i < temp.Length - 2; i++)
{
if (temp[i] == '%')
{
temp[i + 1] = char.ToUpper(temp[i + 1]);
temp[i + 2] = char.ToUpper(temp[i + 2]);
}
}
return new string(temp);

}

public static string HttpGetUrl(string Url, string postDataStr)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);
request.Method = "GET";
request.ContentType = "text/html;charset=UTF-8";

HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
string retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();

return retString;
}

方法调用：

/// <summary>
/// 修改域名解析记录值
/// </summary>
/// <param name="RRKeyWordValue">主机记录的关键字</param>
/// <returns></returns>
public void UpdateByRecordId(string RecordId)
{
Dictionary<string, string> ditParam = new Dictionary<string, string>();
ditParam.Add("Action", "UpdateDomainRecord");
ditParam.Add("RecordId", RecordId);
ditParam.Add("RR", "www");//主机记录的关键字
ditParam.Add("Type", "A");//解析类型的关键字
ditParam.Add("Value", "192.168.0.130");//记录值的关键字

ComputeSignature(ditParam);
string param = string.Join("&", ditParam.Select(x => x.Key + "=" + HttpUtility.UrlEncode(x.Value)));
string url = InterFaceUrl + "?" + param;
string result = HttpHelper.HttpGetUrl(InterFaceUrl, param);

HttpContext.Current.Response.Write(result);
HttpContext.Current.Response.End();
}

阿里云域名解析api调用：签名机制中数据字典ascii编码排序 C#版本

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