protected override Uri ProcessRequestUrl(UriBuilder url, Dictionary <string, object> payload, string method)
{
if (CanMakeAuthenticatedRequest(payload))
{
// must sort case sensitive
var dict = new SortedDictionary <string, object>(StringComparer.Ordinal)
{
["Timestamp"] = CryptoUtility.UnixTimeStampToDateTimeMilliseconds(payload["nonce"].ConvertInvariant <long>()).ToString("s"),
["AccessKeyId"] = PublicApiKey.ToUnsecureString(),
["SignatureMethod"] = "HmacSHA256",
["SignatureVersion"] = "2"
};
if (method == "GET")
{
foreach (var kv in payload)
{
dict.Add(kv.Key, kv.Value);
}
}
string msg = CryptoUtility.GetFormForPayload(dict, false, false, false);
string toSign = $"{method}\n{url.Host}\n{url.Path}\n{msg}";
// calculate signature
var sign = CryptoUtility.SHA256SignBase64(toSign, PrivateApiKey.ToBytesUTF8()).UrlEncode();
// append signature to end of message
msg += $"&Signature={sign}";
url.Query = msg;
}
return(url.Uri);
}
protected override async Task ProcessRequestAsync(IHttpWebRequest request, Dictionary <string, object> payload)
{
if (CanMakeAuthenticatedRequest(payload))
{
string payloadForm = CryptoUtility.GetFormForPayload(payload, false);
request.AddHeader("API-Key", PublicApiKey.ToUnsecureString());
request.AddHeader("Sign", CryptoUtility.SHA256Sign(payloadForm, PrivateApiKey.ToBytesUTF8()).ToUpperInvariant());
await request.WriteToRequestAsync(payloadForm);
}
}
protected override Uri ProcessRequestUrl(UriBuilder url, Dictionary <string, object> payload, string method)
{
if (CanMakeAuthenticatedRequest(payload))
{
if (!payload.ContainsKey("method"))
{
return(url.Uri);
}
method = payload["method"].ToStringInvariant();
payload.Remove("method");
var dict = new Dictionary <string, object>
{
["Timestamp"] = DateTime.UtcNow.ToString("s"),
["AccessKeyId"] = PublicApiKey.ToUnsecureString(),
["SignatureMethod"] = "HmacSHA256",
["SignatureVersion"] = "2"
};
string msg = null;
if (method == "GET")
{
dict = dict.Concat(payload).ToDictionary(x => x.Key, x => x.Value);
}
msg = CryptoUtility.GetFormForPayload(dict, false);
// must sort case sensitive
msg = string.Join("&", new SortedSet <string>(msg.Split('&'), StringComparer.Ordinal));
StringBuilder sb = new StringBuilder();
sb.Append(method).Append("\n")
.Append(url.Host).Append("\n")
.Append(url.Path).Append("\n")
.Append(msg);
var sign = CryptoUtility.SHA256SignBase64(sb.ToString(), PrivateApiKey.ToBytesUTF8());
var signUrl = sign.UrlEncode();
msg += $"&Signature={signUrl}";
/*
* // Huobi rolled this back, it is no longer needed. Leaving it here in case they change their minds again.
* // https://github.com/huobiapi/API_Docs_en/wiki/Signing_API_Requests
* // API Authentication Change
* var privateSign = GetPrivateSignatureStr(Passphrase.ToUnsecureString(), sign);
* var privateSignUrl = privateSign.UrlEncode();
* msg += $"&PrivateSignature={privateSignUrl}";
*/
url.Query = msg;
}
return(url.Uri);
}