public IdentityServerRecaptchaMiddlewareBase(OwinMiddleware next, IdentityServerRecaptchaOptions options)
: base(next)
{
_options = options;
}
public IdentityServerRecaptchaMiddlewareBase(OwinMiddleware next, IdentityServerRecaptchaOptions options)
: base(next)
{
_options = options;
_logger = NLog.LogManager.GetCurrentClassLogger();
}
public ChallengeByIp(OwinMiddleware next, IdentityServerRecaptchaOptions options) : base(next, options)
{
}
public ValidateRecaptchaChallenge(OwinMiddleware next, IdentityServerRecaptchaOptions options) : base(next, options)
{
}
protected IdentityServerRecaptchaMiddlewareBase(OwinMiddleware next, IdentityServerRecaptchaOptions options)
: base(next)
{
Options = options;
}
public async Task <RecaptchaVerificationResponse> Validate(string recaptchaResponse, IdentityServerRecaptchaOptions options)
{
using (var client = new HttpClient())
{
var recaptchaValidationUri = string.Format(
options.VerifyUri + "?secret={0}&response={1}",
options.PrivateKey,
recaptchaResponse);
var httpResponse = await client.GetAsync(recaptchaValidationUri);
if (httpResponse.IsSuccessStatusCode)
{
using (var responseStream = await httpResponse.Content.ReadAsStreamAsync())
{
using (var jsonStream = new StreamReader(responseStream))
{
var json = jsonStream.ReadToEnd();
return(JsonConvert.DeserializeObject <RecaptchaVerificationResponse>(json));
}
}
}
var succeeded = httpResponse.StatusCode == HttpStatusCode.InternalServerError ||
httpResponse.StatusCode == HttpStatusCode.ServiceUnavailable;
_logger.ExtendedInfo("Recaptcha Challenge Validated", new { succeeded, RecaptchaServiceStatus = httpResponse.StatusCode });
return(new RecaptchaVerificationResponse
{
Succeeded = succeeded
});
}
}
