public VkAuthenticationMiddleware(OwinMiddleware next, AppBuilder app, VkAuthenticationOptions options)
: base(next, options)
{
if (string.IsNullOrWhiteSpace(Options.ClientId))
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture,
"The '{0}' option must be provided.", "AppId"));
}
if (string.IsNullOrWhiteSpace(Options.ClientSecret))
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture,
"The '{0}' option must be provided.", "AppSecret"));
}
_logger = app.CreateLogger <VkAuthenticationMiddleware>();
if (Options.Provider == null)
{
Options.Provider = new VkAuthenticationProvider();
}
if (Options.StateDataFormat == null)
{
IDataProtector dataProtector = app.CreateDataProtector(
typeof(VkAuthenticationMiddleware).FullName,
Options.AuthenticationType, "v1.0.2");
Options.StateDataFormat = new PropertiesDataFormat(dataProtector);
}
if (String.IsNullOrEmpty(Options.SignInAsAuthenticationType))
{
Options.SignInAsAuthenticationType = app.GetDefaultSignInAsAuthenticationType();
}
_httpClient = new HttpClient(ResolveHttpMessageHandler(Options));
_httpClient.Timeout = Options.BackchannelTimeout;
_httpClient.MaxResponseContentBufferSize = 1024 * 1024 * 10; // 10 MB
}
