private string _UpdateToken(NetworkCredential credentials)
{
Debug.Assert(credentials != null);
string tokenString;
try
{
// Get token from token service.
Token token;
switch (TokenType)
{
case Services.TokenType.Default:
token = AgsHelper.GetServerToken(_tokenServiceUrl, credentials);
break;
case Services.TokenType.Arcgis_com:
token = AgsHelper.GetServerTokenUsingReferer(_tokenServiceUrl, credentials);
break;
default:
// New token type was added.
Debug.Assert(false);
token = AgsHelper.GetServerToken(_tokenServiceUrl, credentials);
break;
}
lock (_tokenLocker)
{
_lastToken = token.Value;
_expirationTime = token.Expires;
tokenString = _lastToken;
}
}
catch (WebException e)
{
// TODO: Server returns "Forbidden" status on incorrect username/password,
// but it's too ambiguous status, we need more specific info to determine
// if the error is related to authentication problem
// HTTP_STATUS_FORBIDDEN (403): The server understood
// the request, but cannot fulfill it.
if (e.Response != null &&
((HttpWebResponse)e.Response).StatusCode == HttpStatusCode.Forbidden)
{
throw new AuthenticationException();
}
else
{
throw;
}
}
return(tokenString);
}
private string _MakeServiceUrl()
{
Debug.Assert(_baseUrl != null);
Debug.Assert(_connection != null);
string url = _baseUrl;
if (_connection.RequiresTokens)
{
url = AgsHelper.FormatTokenUrl(url, _connection.LastToken);
}
return(url);
}