private string ComposeStringToSign(MethodType?method, Dictionary <string, string> queries)
{
//排序
var sortedDictionary = SortDictionary(queries);
StringBuilder canonicalizedQueryString = new StringBuilder();
foreach (var p in sortedDictionary)
{
canonicalizedQueryString.Append("&")
.Append(AcsURLEncoder.PercentEncode(p.Key)).Append("=")
.Append(AcsURLEncoder.PercentEncode(p.Value));
}
var t = canonicalizedQueryString.ToString().Substring(1);
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());
}
/// <summary>
/// 构造键值参数字符串UTF-8
/// </summary>
/// <param name="parameters"></param>
/// <returns></returns>
private static string ConcatQueryString(Dictionary <string, string> parameters)
{
if (null == parameters)
{
return(null);
}
StringBuilder sb = new StringBuilder();
foreach (var entry in parameters)
{
string key = entry.Key;
string val = entry.Value;
sb.Append(AcsURLEncoder.Encode(key));
if (val != null)
{
sb.Append("=").Append(AcsURLEncoder.Encode(val));
}
sb.Append("&");
}
int strIndex = sb.Length;
if (parameters.Count > 0)
{
sb.Remove(strIndex - 1, 1);
}
return(sb.ToString());
}