/// <summary>
/// 生成预签名头信息
/// </summary>
/// <param name="builder">http 请求信息</param>
/// <param name="contentSha256">http content 计算过 hmac sha256 的内容信息</param>
/// <returns>预签名头信息字符串</returns>
private string CreateCanonicalRequest(SdkHttpFullRequestBuilder builder, string contentSha256)
{
string parameters = builder.GetParameters();
#if NET35
if (!string.IsNullOrEmpty(parameters) && !string.IsNullOrEmpty(parameters.Trim()))
#else
if (!string.IsNullOrWhiteSpace(parameters))
#endif
{
if (parameters.StartsWith("?"))
{
parameters = parameters.Substring(1);
}
}
string path = SdkHttpUtils.AppendUri(builder.GetEndpoint().AbsolutePath, builder.GetResourcePath());
string canonicalRequest = new StringBuilder(builder.GetHttpMethod().ToString().ToUpper())
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(GetCanonicalizedResourcePath(path, _doubleUrlEncode))
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(parameters)
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(GetCanonicalizedHeaderString(builder))
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(GetSignedHeadersString(builder))
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(contentSha256)
.ToString();
return(canonicalRequest);
}
/// <summary>
/// 添加头信息
/// </summary>
/// <param name="builder">http请求信息</param>
private void AddHostHeader(ref SdkHttpFullRequestBuilder builder)
{
var endPoint = builder.GetEndpoint();
if (endPoint == null)
{
throw new ArgumentNullException(" can not get the uri from de SdkHttpFullRequestBuilder , please check the param set ");
}
StringBuilder hostHeaderBuilder = new StringBuilder(endPoint.Host);
if (SdkHttpUtils.IsUsingNonDefaultPort(endPoint))
{
hostHeaderBuilder.Append(":").Append(endPoint.Port);
}
builder.Header(ParameterConstant.HOST, hostHeaderBuilder.ToString());
string contentSha256 = CalculateContentHash(builder);
}