/// <summary>
/// Creates a hidden field. Do not pass null for value.
/// </summary>
public static void Create(string value, Action <string> postBackValueHandler, ValidationList vl, out Func <PostBackValueDictionary, string> valueGetter,
out Func <string> clientIdGetter)
{
var control = new EwfHiddenField(value);
EwfPage.Instance.AddEtherealControl(control);
new EwfValidation((postBackValues, validator) => postBackValueHandler(control.getPostBackValue(postBackValues)), vl);
valueGetter = control.getPostBackValue;
clientIdGetter = () => control.ClientID;
}
/// <summary>
/// Returns a JavaScript function call getter that opens a Stripe Checkout modal window. If the window's submit button is clicked, the credit card is
/// charged or otherwise used. Do not execute the getter before all controls have IDs.
/// </summary>
/// <param name="testPublishableKey">Your test publishable API key. Will be used in non-live installations. Do not pass null.</param>
/// <param name="livePublishableKey">Your live publishable API key. Will be used in live installations. Do not pass null.</param>
/// <param name="name">See https://stripe.com/docs/checkout. Do not pass null.</param>
/// <param name="description">See https://stripe.com/docs/checkout. Do not pass null.</param>
/// <param name="amountInDollars">See https://stripe.com/docs/checkout, but note that this parameter is in dollars, not cents</param>
/// <param name="testSecretKey">Your test secret API key. Will be used in non-live installations. Do not pass null.</param>
/// <param name="liveSecretKey">Your live secret API key. Will be used in live installations. Do not pass null.</param>
/// <param name="successHandler">A method that executes if the credit-card submission is successful. The first parameter is the charge ID and the second
/// parameter is the amount of the charge, in dollars.</param>
/// <param name="prefilledEmailAddressOverride">By default, the email will be prefilled with AppTools.User.Email if AppTools.User is not null. You can
/// override this with either a specified email address (if user is paying on behalf of someone else) or the empty string (to force the user to type in the
/// email address).</param>
public static Func <string> GetCreditCardCollectionJsFunctionCall(
string testPublishableKey, string livePublishableKey, string name, string description, decimal?amountInDollars, string testSecretKey, string liveSecretKey,
Func <string, decimal, StatusMessageAndDestination> successHandler, string prefilledEmailAddressOverride = null)
{
if (!EwfApp.Instance.RequestIsSecure(HttpContext.Current.Request))
{
throw new ApplicationException("Credit-card collection can only be done from secure pages.");
}
EwfPage.Instance.ClientScript.RegisterClientScriptInclude(
typeof(PaymentProcessingStatics),
"Stripe Checkout",
"https://checkout.stripe.com/v2/checkout.js");
if (amountInDollars.HasValue && amountInDollars.Value.DollarValueHasFractionalCents())
{
throw new ApplicationException("Amount must not include fractional cents.");
}
ResourceInfo successDestination = null;
var postBack = PostBack.CreateFull(
id: PostBack.GetCompositeId("ewfCreditCardCollection", description),
actionGetter: () => new PostBackAction(successDestination));
var token = new DataValue <string>();
Func <PostBackValueDictionary, string> tokenHiddenFieldValueGetter; // unused
Func <string> tokenHiddenFieldClientIdGetter;
EwfHiddenField.Create("", postBackValue => token.Value = postBackValue, postBack, out tokenHiddenFieldValueGetter, out tokenHiddenFieldClientIdGetter);
postBack.AddModificationMethod(
() => {
// We can add support later for customer creation, subscriptions, etc. as needs arise.
if (!amountInDollars.HasValue)
{
throw new ApplicationException("Only simple charges are supported at this time.");
}
var apiKey = AppTools.IsLiveInstallation ? liveSecretKey : testSecretKey;
dynamic response = new StripeClient(apiKey).CreateCharge(
amountInDollars.Value,
"usd",
new CreditCardToken(token.Value),
description: description.Any() ? description : null);
if (response.IsError)
{
if (response.error.type == "card_error")
{
throw new DataModificationException(response.error.message);
}
throw new ApplicationException("Stripe error: " + response);
}
try {
var messageAndDestination = successHandler((string)response.id, amountInDollars.Value);
if (messageAndDestination.Message.Any())
{
EwfPage.AddStatusMessage(StatusMessageType.Info, messageAndDestination.Message);
}
successDestination = messageAndDestination.Destination;
}
catch (Exception e) {
throw new ApplicationException("An exception occurred after a credit card was charged.", e);
}
});
EwfPage.Instance.AddPostBack(postBack);
return(() => {
var jsTokenHandler = "function( res ) { $( '#" + tokenHiddenFieldClientIdGetter() + "' ).val( res.id ); " +
PostBackButton.GetPostBackScript(postBack, includeReturnFalse: false) + "; }";
return "StripeCheckout.open( { key: '" + (AppTools.IsLiveInstallation ? livePublishableKey : testPublishableKey) + "', name: '" + name +
"', description: '" + description + "', " + (amountInDollars.HasValue ? "amount: " + amountInDollars.Value * 100 + ", " : "") + "token: " +
jsTokenHandler + ", email: '" + (prefilledEmailAddressOverride ?? (AppTools.User == null ? "" : AppTools.User.Email)) + "' } )";
});
}
