/// <summary>
/// 获取添加密钥签名后的查询字符串。
/// </summary>
/// <param name="uri"></param>
/// <param name="accessKeyStorage">AccessKeyId / AccessKeySecret 存储器。</param>
/// <param name="algorithmName">签名 HMAC 哈希算法名称。</param>
/// <returns></returns>
public static string GetKeyedSignedQueryString(Uri uri, IAccessKeyStorage accessKeyStorage, string algorithmName)
{
if (accessKeyStorage == null)
{
throw new ArgumentNullException(nameof(accessKeyStorage));
}
IDictionary <string, string> sortedQueryStrings = GetSortedQueries(uri);
if (!sortedQueryStrings.ContainsKey(QUERY_NAME_ACCESSKEYID))
{
throw new InvalidOperationException("AccessKeyId field is not found.");
}
string accessKeyId = sortedQueryStrings[QUERY_NAME_ACCESSKEYID];
string accessKeySecret = accessKeyStorage.GetAccessKeySecret(accessKeyId);
return(GetKeyedSignedQueryString(uri, accessKeyId, accessKeySecret, algorithmName));
}
public static IHttpClientBuilder UseKeyedQuerySignatureInterceptor(this IHttpClientBuilder httpClientBuilder, IAccessKeyStorage accessKeyStorage, string algorithmName = "HMACSHA1")
{
return(httpClientBuilder.AddRequestInterceptor(request =>
{
request.RequestUri = UriHelper.GetRelativeUri(request.RequestUri, string.Empty, (builder) =>
{
builder.Query = QuerySignatureHelper.GetKeyedSignedQueryString(builder.Uri, accessKeyStorage, algorithmName);
});
}));
}
