/// <summary>
/// <see cref="IHtmlHelper"/> implementation for creating reCAPTCHA components.
/// </summary>
/// <typeparam name="TModel">The type of the model.</typeparam>
/// <param name="htmlHelper">The <see cref="IHtmlHelper"/> instance this method extends.</param>
/// <param name="expression">An expression to be evaluated against the current model.</param>
/// <param name="type">Type of reCAPTCHA component to be created.</param>
/// <param name="siteKey">Site Key of the required type. Get keys from the admin console.</param>
/// <param name="theme">The color theme of the widget.</param>
/// <param name="size">The size of the widget.</param>
/// <param name="tabIndex">The tabindex of the widget and challenge. If other elements in your page use tabindex, it should be set to make user navigation easier.</param>
/// <param name="callback">The name of your Javascript callback function, executed when the user submits a successful response. Response token will be passed to this function.</param>
/// <param name="expiredCallback">The name of your callback function, executed when the reCAPTCHA response expires and the user needs to re-verify.</param>
/// <param name="errorCallback">The name of your callback function, executed when reCAPTCHA encounters an error (usually network connectivity) and cannot continue until connectivity is restored. If you specify a function here, you are responsible for informing the user that they should retry.</param>
/// <param name="action">A name used to provide a detailed break-down of data for your top ten actions in the admin console.</param>
/// <param name="badge">Controls position and visibility of the reCAPTCHA badge on the page.</param>
/// <returns>Html and script content to render and execute the reCAPTCHA component.</returns>
public static IHtmlContent Recaptcha <TModel>(
this IHtmlHelper <TModel> htmlHelper,
string expression,
RecaptchaType type,
string siteKey,
ThemeType?theme = null,
SizeType?size = null,
int?tabIndex = null,
string callback = null,
string expiredCallback = null,
string errorCallback = null,
string action = null,
BadgeType?badge = null)
{
if (htmlHelper is null)
{
throw new ArgumentNullException(nameof(htmlHelper));
}
TagBuilder input = null;
if (!string.IsNullOrWhiteSpace(expression))
{
input = (TagBuilder)htmlHelper.Hidden(expression);
}
var props = new RecaptchaProps(
type,
siteKey,
callback: callback,
expiredCallback: expiredCallback,
errorCallback: errorCallback,
theme: theme,
tabIndex: tabIndex,
size: size,
badge: badge,
action: action);
return(props.GenerateHtml(input));
}
public static IHtmlContent RecaptchaV3 <TModel>(
this IHtmlHelper <TModel> htmlHelper,
string siteKey,
string expression = null,
string callback = null,
string action = null,
bool?isBadgeVisible = true,
BadgeType?badge = null)
{
if (htmlHelper is null)
{
throw new ArgumentNullException(nameof(htmlHelper));
}
// todo: 'IsBadgeVisible' property is obsolete and should be removed in a future version.
if (isBadgeVisible.HasValue && !isBadgeVisible.Value)
{
// if IsBadgeVisible has been set to false then override Badge property
badge = BadgeType.None;
}
TagBuilder input = null;
if (!string.IsNullOrWhiteSpace(expression))
{
input = (TagBuilder)htmlHelper.Hidden(expression);
}
var props = new RecaptchaProps(
RecaptchaType.V3,
siteKey,
callback: callback,
badge: badge,
action: action);
return(props.GenerateHtml(input));
}
public static IHtmlContent RecaptchaV2Checkbox <TModel>(
this IHtmlHelper <TModel> htmlHelper,
string siteKey,
string expression = null,
ThemeType?theme = null,
SizeType?size = null,
int?tabIndex = null,
string callback = null,
string expiredCallback = null,
string errorCallback = null)
{
if (htmlHelper is null)
{
throw new ArgumentNullException(nameof(htmlHelper));
}
TagBuilder input = null;
if (!string.IsNullOrWhiteSpace(expression))
{
// Generate an <input> element using Model or Id property details.
input = (TagBuilder)htmlHelper.Hidden(expression);
}
var props = new RecaptchaProps(
RecaptchaType.V2Checkbox,
siteKey,
callback: callback,
expiredCallback: expiredCallback,
errorCallback: errorCallback,
theme: theme,
tabIndex: tabIndex,
size: size);
return(props.GenerateHtml(input));
}