public TClass ExecuteSymKeyEncryption <TClass>(RestRequest request, string body) where TClass : new()
{
request.AddHeader("client", DtoGobalSettings.ClientIdentity.Name);
request.AddHeader("identifier", DtoGobalSettings.ClientIdentity.Guid);
var serviceSetting = new ServiceSetting();
var entropy = serviceSetting.GetSetting("entropy");
var encryptedKey = serviceSetting.GetSetting("encryption_key");
var decryptedKey = ServiceDP.DecryptData(Convert.FromBase64String(encryptedKey.Value), true,
Convert.FromBase64String(entropy.Value));
if (!string.IsNullOrEmpty(body))
{
var encryptedContent = new ServiceSymmetricEncryption().EncryptData(decryptedKey, body);
request.AddParameter("text/xml", encryptedContent, ParameterType.RequestBody);
}
var deviceThumbprint = new ServiceSetting().GetSetting("device_thumbprint");
var deviceCert = ServiceCertificate.GetCertificateFromStore(deviceThumbprint.Value, StoreName.My);
if (deviceCert == null)
{
return(default(TClass));
}
var encryptedCert = new ServiceSymmetricEncryption().EncryptData(decryptedKey,
Convert.ToBase64String(deviceCert.RawData));
request.AddHeader("device_cert", Convert.ToBase64String(encryptedCert));
return(SubmitRequest <TClass>(request, decryptedKey));
}
public bool DownloadFile(RestRequest request, string body, string destination)
{
if (string.IsNullOrEmpty(body))
{
throw new ArgumentException("body");
}
request.AddHeader("client", DtoGobalSettings.ClientIdentity.Name);
request.AddHeader("identifier", DtoGobalSettings.ClientIdentity.Guid);
var serviceSetting = new ServiceSetting();
var entropy = serviceSetting.GetSetting("entropy");
var encryptedKey = serviceSetting.GetSetting("encryption_key");
var decryptedKey = ServiceDP.DecryptData(Convert.FromBase64String(encryptedKey.Value), true,
Convert.FromBase64String(entropy.Value));
var encryptedContent = new ServiceSymmetricEncryption().EncryptData(decryptedKey, body);
request.AddParameter("text/xml", encryptedContent, ParameterType.RequestBody);
var deviceThumbprint = new ServiceSetting().GetSetting("device_thumbprint");
var deviceCert = ServiceCertificate.GetCertificateFromStore(deviceThumbprint.Value, StoreName.My);
if (deviceCert == null)
{
return(false);
}
var encryptedCert = new ServiceSymmetricEncryption().EncryptData(decryptedKey,
Convert.ToBase64String(deviceCert.RawData));
request.AddHeader("device_cert", Convert.ToBase64String(encryptedCert));
try
{
_log.Debug(request.Resource);
using (var stream = File.Create(destination, 4096))
{
request.ResponseWriter = (responseStream) => responseStream.CopyTo(stream);
_client.DownloadData(request);
if (stream.Length == 0)
{
//something went wrong, rest sharp can't display any other info with downloaddata, so we don't know why
return(false);
}
}
return(true);
}
catch (Exception ex)
{
_log.Error("Could Not Save File: " + destination);
_log.Error(ex.Message);
return(false);
}
}
public TClass ExecuteHMAC <TClass>(RestRequest request, string computerName) where TClass : new()
{
//Calculate UNIX time
var epochStart = new DateTime(1970, 01, 01, 0, 0, 0, 0, DateTimeKind.Utc);
var timeSpan = DateTime.UtcNow - epochStart;
var requestTimeStamp = Convert.ToUInt64(timeSpan.TotalSeconds).ToString();
var nonce = Guid.NewGuid().ToString("N");
var url =
HttpUtility.UrlEncode(_client.BaseUrl + request.Resource).ToLower();
var body = request.Parameters.FirstOrDefault(p => p.Type == ParameterType.RequestBody);
var requestContentBase64String = string.Empty;
if (body != null)
{
var content = Encoding.ASCII.GetBytes(body.Value.ToString());
var md5 = MD5.Create();
var requestContentHash = md5.ComputeHash(content);
requestContentBase64String = Convert.ToBase64String(requestContentHash);
}
var signatureRawData = string.Format("{0}{1}{2}{3}{4}{5}", computerName, request.Method, url,
requestTimeStamp, nonce, requestContentBase64String);
var serviceSetting = new ServiceSetting();
var serverKeyEntropy = serviceSetting.GetSetting("server_key_entropy");
var encryptedServerKey = serviceSetting.GetSetting("server_key");
var decryptedServerKey = ServiceDP.DecryptData(Convert.FromBase64String(encryptedServerKey.Value), true,
Convert.FromBase64String(serverKeyEntropy.Value));
var signature = Encoding.UTF8.GetBytes(signatureRawData);
string requestSignatureBase64String;
using (var hmac = new HMACSHA256(decryptedServerKey))
{
var signatureBytes = hmac.ComputeHash(signature);
requestSignatureBase64String = Convert.ToBase64String(signatureBytes);
}
request.AddHeader("Authorization",
"amx " +
string.Format("{0}:{1}:{2}:{3}", computerName, requestSignatureBase64String, nonce, requestTimeStamp));
return(SubmitRequest <TClass>(request));
}