public static void SignRequest(IRequest request, byte[] body, AwsCredentials credentials, string region, string service)
{
var date = DateTime.UtcNow;
var dateStamp = date.ToString("yyyyMMdd");
var amzDate = date.ToString("yyyyMMddTHHmmssZ");
request.Headers.XAmzDate = amzDate;
var signingKey = GetSigningKey(credentials.SecretKey, dateStamp, region, service);
var stringToSign = GetStringToSign(request, body, region, service);
Debug.Write("========== String to Sign ==========\r\n{0}\r\n========== String to Sign ==========\r\n", stringToSign);
var signature = signingKey.GetHmacSha256Hash(stringToSign).ToLowercaseHex();
var auth = string.Format(
"AWS4-HMAC-SHA256 Credential={0}/{1}, SignedHeaders={2}, Signature={3}",
credentials.AccessKey,
GetCredentialScope(dateStamp, region, service),
GetSignedHeaders(request),
signature);
request.Headers.Authorization = auth;
if (!String.IsNullOrWhiteSpace(credentials.Token))
{
request.Headers.XAmzSecurityToken = credentials.Token;
}
}
public StaticCredentialsProvider(AwsCredentials credentials)
{
if (credentials == null)
{
throw new ArgumentNullException(nameof(credentials));
}
if (string.IsNullOrEmpty(credentials.AccessKey))
{
throw new ArgumentException("AccessKey is required.", nameof(credentials));
}
if (string.IsNullOrEmpty(credentials.SecretKey))
{
throw new ArgumentException("SecretKey is required.", nameof(credentials));
}
_credentials = credentials;
}
public AwsCredentials GetCredentials()
{
var chain = new CredentialProfileStoreChain();
var profiles = chain.ListProfiles();
CredentialProfile profile = profiles.FirstOrDefault();
if (profile == null)
{
return(null);
}
var credentials = profile.GetAWSCredentials(chain).GetCredentials();
var credential = new AwsCredentials {
AccessKey = credentials.AccessKey, SecretKey = credentials.SecretKey, Token = credentials.Token
};
return(new AwsCredentials
{
AccessKey = credential.AccessKey,
SecretKey = credential.SecretKey,
Token = credential.Token
});
}
