/// <summary>
/// Verifies reCAPTCHA response token and checks score (for v3) and action.
/// </summary>
/// <param name="context">A context for executing action.</param>
/// <param name="next">A delegate that contains next action.</param>
/// <returns></returns>
public override async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
{
var recaptchaService = context.HttpContext.RequestServices.GetService <IRecaptchaService>();
var recaptchaOptions = context.HttpContext.RequestServices.GetService <IOptions <RecaptchaOptions> >().Value;
var remoteIp = context.HttpContext.Connection.RemoteIpAddress.MapToIPv4().ToString();
var cancellationToken = recaptchaOptions.AttributeOptions.UseCancellationToken ?
context.HttpContext.RequestAborted : CancellationToken.None;
CheckResult checkResult = null;
try
{
var recaptchaToken = context.GetResponseToken(recaptchaOptions.AttributeOptions);
if (_score.HasValue)
{
checkResult = await recaptchaService.VerifyAndCheckAsync(
new VerifyRequest()
{
Secret = recaptchaOptions.SecretKey,
Response = recaptchaToken,
RemoteIp = remoteIp
},
_action,
_score.Value,
cancellationToken);
}
else
{
checkResult = await recaptchaService.VerifyAndCheckAsync(
new VerifyRequest()
{
Secret = recaptchaOptions.SecretKey,
Response = recaptchaToken,
RemoteIp = remoteIp
},
_action,
cancellationToken);
}
}
catch (RecaptchaServiceException e)
{
HandleBadResult(context, recaptchaOptions, checkResult, e, null);
return;
}
catch (Exception e)
{
HandleBadResult(context, recaptchaOptions, checkResult, null, e);
return;
}
if (!checkResult.Success)
{
HandleBadResult(context, recaptchaOptions, checkResult, null, null);
return;
}
await base.OnActionExecutionAsync(context, next);
}
