public new void Sign <T>(IRequest <T> request, ICredentials credentials)
{
var sanitizedCredentials = this.SanitizeCredentials(credentials);
var signerParams = new SignerRequestParams <T>(request, this.regionName, this.serviceName, "SDK-HMAC-SHA256");
this.AddHostHeader(request);
request.AddHeader("X-Sdk-Date", signerParams.GetFormattedSigningDateTime());
String contentSha256 = this.CalculateContentHash(request);
/* Not support for now
* String contentSha256 = this.calculateContentHash(request);
* if ("required".equals(request.getHeaders().get("x-sdk-content-sha256")))
* {
* request.addHeader("x-sdk-content-sha256", contentSha256);
* }
*
* String canonicalRequest = this.createCanonicalRequest(request, contentSha256);
* string stringToSign = this.CreateStringToSign(canonicalRequest, signerParams);
* byte[] signingKey = this.deriveSigningKey(sanitizedCredentials, signerParams);
* byte[] signature = this.computeSignature(stringToSign, signingKey, signerParams);
*/
//byte[] signature = this.computeSignature(stringToSign, signingKey, signerParams);
request.AddHeader("Authorization", this.BuildAuthorizationHeader(request, null, sanitizedCredentials, signerParams));
}
protected string CreateStringToSign <T>(string canonicalRequest, SignerRequestParams <T> signerParams)
{
var stringToSignBuilder = new StringBuilder(signerParams.GetSigningAlgorithm());
stringToSignBuilder.Append("\n")
.Append(signerParams.GetFormattedSigningDateTime())
.Append("\n")
.Append(signerParams.GetScope())
.Append("\n")
.Append(BinaryUtils.ToHex(this.Hash(canonicalRequest)));
var stringToSign = stringToSignBuilder.ToString();
return(stringToSign);
}
private string BuildAuthorizationHeader <T>(IRequest <T> request, byte[] signature, ICredentials credentials, SignerRequestParams <T> signerParams)
{
var signingCredentials = credentials.GetAccessKeyId() + "/" + signerParams.GetScope();
var credential = "Credential=" + signingCredentials;
var signerHeaders = "SignedHeaders=" + this.GetSignedHeadersString(request);
var signatureHeader = "Signature=" + BinaryUtils.ToHex(signature);
var authHeaderBuilder = new StringBuilder();
authHeaderBuilder.Append("SDK-HMAC-SHA256")
.Append(" ")
.Append(credential)
.Append(", ")
.Append(signerHeaders)
.Append(", ")
.Append(signatureHeader);
return(authHeaderBuilder.ToString());
}
