/// <summary>
/// 执行Action时
/// </summary>
/// <param name="filterContext"></param>
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (CaptchaUtility.UseCaptcha(scenarios, true))
{
try
{
ICaptchaManager captchaManager = DIContainer.Resolve <ICaptchaManager>();
ControllerBase controllerBase = filterContext.Controller;
if (!captchaManager.IsCaptchaValid(filterContext))
{
controllerBase.ViewData.ModelState.AddModelError("Captcha", CaptchaVerifyError);
}
else if (controllerBase.ViewData.ModelState.IsValid)
{
//表单通过验证时，重设计数
CaptchaUtility.ResetLimitTryCount(scenarios);
}
}
catch
{
throw new ExceptionFacade("检查验证码时，出现异常");
}
}
base.OnActionExecuting(filterContext);
}
/// <summary>
/// 输出验证码
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="htmlHelper"></param>
/// <param name="scenarios">使用场景</param>
/// <param name="showCaptchaImage">默认是否显示验证码图片(仅针对验证码图片可以不立即显示的情况)</param>
/// <param name="templateName">模板名称</param>
/// <returns></returns>
public static MvcHtmlString Captcha <TModel>(this HtmlHelper <TModel> htmlHelper, VerifyScenarios scenarios = VerifyScenarios.Post, bool showCaptchaImage = false, string templateName = "Captcha")
{
if (!CaptchaUtility.UseCaptcha(scenarios))
{
return(MvcHtmlString.Empty);
}
ICaptchaManager captchaManager = DIContainer.Resolve <ICaptchaManager>();
MvcHtmlString captchaText = captchaManager.GenerateCaptcha(htmlHelper, showCaptchaImage);
return(htmlHelper.EditorForModel(templateName, new { CaptchaText = captchaText }));
}