/// <summary>
/// Gets the access token.
/// </summary>
/// <returns>Task<System.String>.</returns>
/// <exception cref="CommunicationException"></exception>
public async Task <AuthenticationHeaderValue> GetAuthenticationHeader()
{
if (_userName == null)
{
// no point in looking if the username hasn't been set up
return(null);
}
if (_cachedAuthenticationHeader != null && DateTime.UtcNow < _tokenExpiryDateUtc)
{
// used the cached token;
return(_cachedAuthenticationHeader);
}
else
{
Dictionary <string, string> postValues = new Dictionary <string, string>();
postValues["grant_type"] = "password";
postValues["username"] = _userName;
postValues["password"] = _password;
var timeoutSeconds = _settingsService.Setting <int?>("Communication.TimeoutSeconds");
var timeout = (timeoutSeconds.HasValue)
? (TimeSpan?)TimeSpan.FromSeconds(timeoutSeconds.Value)
: null;
var communicationHelper = new CommunicationHelper <LoginResponse, LoginErrorResponse> {
Timeout = timeout
};
var loginResponse = await communicationHelper.PostRequest(_urlHelper.BuildUrl("oauth2/token"), postValues);
if (loginResponse == null)
{
throw new CommunicationException(communicationHelper.ErrorResponse?.ToString());
}
else
{
_cachedAuthenticationHeader = new AuthenticationHeaderValue("Bearer", loginResponse.AccessToken);
// remember the expiry date, but give ourselves a bit of leeway with the time
_tokenExpiryDateUtc = DateTime.UtcNow + TimeSpan.FromSeconds(loginResponse.ExpiresInSeconds.Value) - TimeSpan.FromMinutes(2);
return(_cachedAuthenticationHeader);
}
}
}
public async Task <SessionUpdateResponse> PostSessionUpdateRequestToServer(SessionUpdateRequest sessionUpdateRequest)
{
var communicationHelper = new CommunicationHelper <SessionUpdateResponse, ErrorResponse> {
Timeout = GetTimeout()
};
var authenticationHeader = await _accountService.GetAuthenticationHeader();
var response = await communicationHelper.PostRequest(_urlHelper.BuildUrl("api/Cases/SessionUpdate"), JsonConvert.SerializeObject(sessionUpdateRequest), authenticationHeader);
if (response == null)
{
throw new CommunicationException(communicationHelper.ErrorResponse?.ToStringList());
}
return(response);
}
public async Task <ValidationResponse> ValidateRequest(ValidatedSession caseAuthorizationRequest, bool save = true)
{
try
{
var communicationHelper = new CommunicationHelper <ValidationResponse, ErrorResponse> {
Timeout = GetTimeout()
};
var authenticationHeader = await _accountService.GetAuthenticationHeader();
var validationRequest = new ValidationRequest {
RequestedValidatedSession = caseAuthorizationRequest
};
var queryStringValues = new Dictionary <string, string>();
queryStringValues["save"] = save.ToString();
var response = await communicationHelper.PostRequest(_urlHelper.BuildUrl("api/Cases/Validate", queryStringValues), JsonConvert.SerializeObject(validationRequest), authenticationHeader);
if (response == null)
{
throw new CommunicationException(communicationHelper.ErrorResponse?.ToStringList());
}
return(response);
}
catch (Exception ex)
{
var validationResponse = new ValidationResponse()
{
Errors = new List <string>()
};
#if DEBUG
string errorMessage = "Unable to validate request : " + ex.GetType().Name + " " + ex.Message;
#else
string errorMessage = "Unable to validate request.";
#endif
validationResponse.Errors.Add(errorMessage);
return(validationResponse);
}
}