public async Task RequestJwtAsync(UserAuthenticationModel userData, bool forceRefresh)
{
var fileExists = await _keyStorageContainer.PublicKeyExists(_deviceId);
if (forceRefresh || !fileExists || fileExists && string.IsNullOrEmpty(await _storageContainer.ReadFileAsStringAsync(_jwtFilePath)))
{
var key = _cryptoService.RetrieveMergedKey("server");
var cryptedData = await _cryptoService.EncryptTripleDESAsync(JsonConvert.SerializeObject(userData), key);
var jwtRequest = new SecureAuthenticationModel()
{
Id = _deviceId,
Content = Convert.ToBase64String(cryptedData)
};
var content = new StringContent(JsonConvert.SerializeObject(jwtRequest), Encoding.UTF8, "application/json");
var response = await _httpClient.PostAsync("api/jwt/requestjwt", content);
if (response.IsSuccessStatusCode)
{
var responseString = await response.Content.ReadAsStringAsync();
var responseModel = JsonConvert.DeserializeObject <SecureJwtModel>(responseString);
await _storageContainer.WriteFileAsync(_jwtFilePath, JsonConvert.SerializeObject(responseModel.TokenModel));
}
else if (response.StatusCode == HttpStatusCode.Unauthorized)
{
throw new UnauthorizedAccessException();
}
else
{
await _storageContainer.WriteFileAsync(_jwtFilePath, "");
throw new Exception(response.ReasonPhrase);
}
}
}
private async Task <bool> RSAKeysExists(string id)
{
return(await _keyStorageContainer.PublicKeyExists(id) &&
await _keyStorageContainer.PrivateKeyExists(id));
}