private Dictionary <string, string> BuildHeaders(string contentType, string requestPayload, string canonicalQueryString)
{
string endpoint = this.Endpoint;
if (!string.IsNullOrEmpty(this.Profile.HttpProfile.Endpoint))
{
endpoint = this.Profile.HttpProfile.Endpoint;
}
string httpRequestMethod = this.Profile.HttpProfile.ReqMethod;
string canonicalURI = "/";
string canonicalHeaders = "content-type:" + contentType + "; charset=utf-8\nhost:" + endpoint + "\n";
string signedHeaders = "content-type;host";
string hashedRequestPayload = SignHelper.SHA256Hex(requestPayload);
string canonicalRequest = httpRequestMethod + "\n"
+ canonicalURI + "\n"
+ canonicalQueryString + "\n"
+ canonicalHeaders + "\n"
+ signedHeaders + "\n"
+ hashedRequestPayload;
string algorithm = "TC3-HMAC-SHA256";
long timestamp = ToTimestamp() / 1000;
string requestTimestamp = timestamp.ToString();
string date = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc).AddSeconds(timestamp).ToString("yyyy-MM-dd");
string service = endpoint.Split('.')[0];
string credentialScope = date + "/" + service + "/" + "tc3_request";
string hashedCanonicalRequest = SignHelper.SHA256Hex(canonicalRequest);
string stringToSign = algorithm + "\n"
+ requestTimestamp + "\n"
+ credentialScope + "\n"
+ hashedCanonicalRequest;
byte[] tc3SecretKey = Encoding.UTF8.GetBytes("TC3" + Credential.SecretKey);
byte[] secretDate = SignHelper.HmacSHA256(tc3SecretKey, Encoding.UTF8.GetBytes(date));
byte[] secretService = SignHelper.HmacSHA256(secretDate, Encoding.UTF8.GetBytes(service));
byte[] secretSigning = SignHelper.HmacSHA256(secretService, Encoding.UTF8.GetBytes("tc3_request"));
byte[] signatureBytes = SignHelper.HmacSHA256(secretSigning, Encoding.UTF8.GetBytes(stringToSign));
string signature = BitConverter.ToString(signatureBytes).Replace("-", "").ToLower();
string authorization = algorithm + " "
+ "Credential=" + Credential.SecretId + "/" + credentialScope + ", "
+ "SignedHeaders=" + signedHeaders + ", "
+ "Signature=" + signature;
Dictionary <string, string> headers = new Dictionary <string, string>();
headers.Add("Authorization", authorization);
headers.Add("Host", endpoint);
headers.Add("Content-Type", contentType);
headers.Add("X-TC-Timestamp", requestTimestamp);
headers.Add("X-TC-Version", this.ApiVersion);
headers.Add("X-TC-Region", this.Region);
headers.Add("X-TC-RequestClient", this.SdkVersion);
if (!string.IsNullOrEmpty(this.Credential.Token))
{
headers.Add("X-TC-Token", this.Credential.Token);
}
return(headers);
}
private async Task <IResponse> RequestV3(AbstractModel request, string actionName)
{
string endpoint = this.Endpoint;
if (!string.IsNullOrEmpty(this.Profile.HttpProfile.Endpoint))
{
endpoint = this.Profile.HttpProfile.Endpoint;
}
string httpRequestMethod = this.Profile.HttpProfile.ReqMethod;
string canonicalURI = "/";
string canonicalQueryString = "";
string requestPayload = "";
string contentType = "application/x-www-form-urlencoded";
if (HttpProfile.REQ_GET.Equals(httpRequestMethod))
{
Dictionary <string, string> param = new Dictionary <string, string>();
request.ToMap(param, "");
StringBuilder urlBuilder = new StringBuilder();
foreach (KeyValuePair <string, string> kvp in param)
{
urlBuilder.Append($"{WebUtility.UrlEncode(kvp.Key)}={WebUtility.UrlEncode(kvp.Value)}&");
}
canonicalQueryString = urlBuilder.ToString().TrimEnd('&');
}
else
{
requestPayload = JsonConvert.SerializeObject(request,
Newtonsoft.Json.Formatting.None,
new JsonSerializerSettings {
NullValueHandling = NullValueHandling.Ignore
});
contentType = "application/json";
}
// HttpContent->StringContent will add charset to utf-8 in content-type,
// which leads to authentication failure in API...
string canonicalHeaders = "content-type:" + contentType + "; charset=utf-8\nhost:" + endpoint + "\n";
string signedHeaders = "content-type;host";
string hashedRequestPayload = SignHelper.SHA256Hex(requestPayload);
string canonicalRequest = httpRequestMethod + "\n"
+ canonicalURI + "\n"
+ canonicalQueryString + "\n"
+ canonicalHeaders + "\n"
+ signedHeaders + "\n"
+ hashedRequestPayload;
//Console.WriteLine(canonicalRequest);
string algorithm = "TC3-HMAC-SHA256";
long timestamp = ToTimestamp() / 1000;
string requestTimestamp = timestamp.ToString();
string date = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc).AddSeconds(timestamp).ToString("yyyy-MM-dd");
string service = endpoint.Split('.')[0];
string credentialScope = date + "/" + service + "/" + "tc3_request";
string hashedCanonicalRequest = SignHelper.SHA256Hex(canonicalRequest);
string stringToSign = algorithm + "\n"
+ requestTimestamp + "\n"
+ credentialScope + "\n"
+ hashedCanonicalRequest;
//Console.WriteLine(stringToSign);
byte[] tc3SecretKey = Encoding.UTF8.GetBytes("TC3" + Credential.SecretKey);
byte[] secretDate = SignHelper.HmacSHA256(tc3SecretKey, Encoding.UTF8.GetBytes(date));
byte[] secretService = SignHelper.HmacSHA256(secretDate, Encoding.UTF8.GetBytes(service));
byte[] secretSigning = SignHelper.HmacSHA256(secretService, Encoding.UTF8.GetBytes("tc3_request"));
byte[] signatureBytes = SignHelper.HmacSHA256(secretSigning, Encoding.UTF8.GetBytes(stringToSign));
string signature = BitConverter.ToString(signatureBytes).Replace("-", "").ToLower();
//Console.WriteLine(signature);
string authorization = algorithm + " "
+ "Credential=" + Credential.SecretId + "/" + credentialScope + ", "
+ "SignedHeaders=" + signedHeaders + ", "
+ "Signature=" + signature;
//Console.WriteLine(authorization);
Dictionary <string, string> headers = new Dictionary <string, string>();
headers.Add("Authorization", authorization);
headers.Add("Host", endpoint);
headers.Add("Content-Type", contentType);
headers.Add("X-TC-Action", actionName);
headers.Add("X-TC-Timestamp", requestTimestamp);
headers.Add("X-TC-Version", this.ApiVersion);
headers.Add("X-TC-Region", this.Region);
headers.Add("X-TC-RequestClient", this.SdkVersion);
if (!string.IsNullOrEmpty(this.Credential.Token))
{
headers.Add("X-TC-Token", this.Credential.Token);
}
HttpConnection conn = new HttpConnection(
$"{this.Profile.HttpProfile.Protocol }{endpoint}",
this.Profile.HttpProfile.Timeout,
this.Profile.HttpProfile.WebProxy);
try
{
if (this.Profile.HttpProfile.ReqMethod == HttpProfile.REQ_GET)
{
return(await conn.GetRequest(this.Path, canonicalQueryString, headers));
}
else
{
return(await conn.PostRequest(this.Path, requestPayload, headers));
}
}
catch (Exception e)
{
throw new TencentCloudSDKException($"The request with exception: {e.Message}");
}
}