/// <summary>
/// Used to set IPN values with date and time information.
/// </summary>
/// <remarks>
/// This method should not be used directly. Instead use
/// <see cref="SetIpnTransactionProperties"/>.
/// </remarks>
/// <param name="key">The key used to find the property.</param>
/// <param name="val">The value to set to the property.</param>
/// <param name="ipn">The <see cref="IpnTransaction"/> to set to.</param>
/// <returns>TRUE if a property was set, otherwise returns FALSE.</returns>
private bool SetIpnTransactionProperties_Date(string key, string val, IpnTransaction ipn)
{
if (key == "payment_date")
{
ipn.PaymentDate = ConvertIpnDate(val);
}
else if (key == "auction_closing_date")
{
ipn.PaymentDate = ConvertIpnDate(val);
}
else
{
return false;
}
return true;
}
private bool ProcessTransaction(IpnTransaction ipnTx)
{
// TODO: Determine what you want todo with the IPN transaction message.
// For example, typically an ecommerce site would verify the order details with
// the database to verify that the price was not changed and that the order was
// actually placed by the original customer.
// The following code will check for an existing shopping cart order
// and update it's payment information. If the order was not found,
// then this IPN is ignored. Also note that "Buy Now" purchases will
// not have a corresponding order and thus IPN messages will be ignored.
// Verify that the order is valid
if (ipnTx.Custom == null || ipnTx.Custom == string.Empty)
{
return false;
}
//else
//{
// if (!Config.Credits.Required)
// {
// // Try converting to int, should be an int and convertable if
// // original order was placed by PayPalCommerce
// try
// {
// subscriptionID = Int32.Parse(ipnTx.Custom);
// }
// catch (Exception)
// {
// throw new Exception(String.Format("Invalid subscription id - {0}", ipnTx.Custom));
// }
// }
//}
//if (Config.Credits.Required)
//{
if (ipnTx.TransactionType == TransactionType.Web_Accept)
{
int packageId;
try
{
packageId = Int32.Parse(ipnTx.Items[0].ItemNumber);
}
catch (Exception)
{
throw new Exception(String.Format("Invalid package id - {0}", ipnTx.Items[0].ItemNumber));
}
CreditsPackage package = CreditsPackage.Fetch(packageId);
if (package == null)
{
throw new Exception(String.Format("There is no package with id = {0}", packageId));
}
if (package.Price != (decimal)ipnTx.McGross)
throw new Exception(String.Format("Invalid amount! The amount from the package {0} differs from the value {1} ",
package.Price, (decimal)ipnTx.McGross));
User user;
try
{
user = ezFixUp.Classes.User.Load(ipnTx.Custom);
}
catch (NotFoundException)
{
throw new Exception(String.Format("There is no user with username {0}", ipnTx.Custom));
}
user.Credits += package.Quantity;
user.Update(true);
#region Apply affiliate commission
string description = String.Format("Credits fee ({0}, {1})", package.Price, DateTime.Now);
string notes = Config.AdminSettings.Payments.PayPalSandbox ? "SANDBOX" : "LIVEMODE";
int paymentHistoryID = Payments.SavePaymentHistory(user.Username, "PayPal", package.Price, description, notes, 1);
AffiliateCommission.ApplyCommission(user.Username, paymentHistoryID, package.Price, notes);
#endregion
}
//}
else
{
int subscriptionID;
try
{
subscriptionID = Int32.Parse(ipnTx.Custom);
}
catch (Exception)
{
throw new Exception(String.Format("Invalid subscription id - {0}", ipnTx.Custom));
}
if (ipnTx.TransactionType == TransactionType.Subscr_Signup)
{
float amount = ipnTx.MC_AMOUNT3;//ipnTx.SubscriptionItems[2].Amount;
int cycle = ipnTx.SubscriptionItems[2].Period;
int cycleUnits = Convert.ToInt32(ipnTx.SubscriptionItems[2].TimeUnits);
//some validations
BillingPlan plan = BillingPlan.FetchBySubscriptionID(subscriptionID);
if (amount != plan.Amount)
{
return false;
}
if (cycle != plan.Cycle ||
cycleUnits !=
Convert.ToInt32(plan.CycleUnit)
)
{
return false;
}
if (Config.AdminSettings.Payments.PayPalEmail.ToLower() != ipnTx.ReceiverEmail.ToLower())
{
LogIPN(String.Format("The paypal email in the web.config file '{0}' is different from '{1}' that is configured in the merchant account",
Config.AdminSettings.Payments.PayPalEmail.ToLower(), ipnTx.ReceiverEmail.ToLower()));
return false;
}
//activate subscription
Subscription subscription = Subscription.Fetch(subscriptionID);
subscription.Activate(ipnTx.SubscrDate, plan);
string description = String.Format("Subscription fee ({0}, {1})", plan.Amount, DateTime.Now);
string notes = Config.AdminSettings.Payments.PayPalSandbox ? "SANDBOX" : "LIVEMODE";
int paymentHistoryID = Payments.SavePaymentHistory(subscription.Username, "PayPal", (decimal)plan.Amount, description, notes, 1);
#region Apply affiliate commission
AffiliateCommission.ApplyCommission(subscription.Username, paymentHistoryID, (decimal)plan.Amount, notes);
#endregion
}
if (ipnTx.TransactionType == TransactionType.Subscr_Payment && ipnTx.PaymentStatus == PaymentStatus.Completed)
{
Subscription subscription = Subscription.Fetch(subscriptionID);
BillingPlan plan = BillingPlan.FetchBySubscriptionID(subscriptionID);
if (!subscription.Confirmed || subscription.RenewDate >= DateTime.Now.AddDays(3))
return true;
subscription.Renew(plan);
string description = String.Format("Subscription fee ({0}, {1})", plan.Amount, DateTime.Now);
string notes = Config.AdminSettings.Payments.PayPalSandbox ? "SANDBOX" : "LIVEMODE";
int paymentHistoryID = Payments.SavePaymentHistory(subscription.Username, "PayPal", (decimal)plan.Amount, description, notes, 1);
#region Apply affiliate commission
AffiliateCommission.ApplyCommission(subscription.Username, paymentHistoryID, (decimal)plan.Amount, notes);
#endregion
}
if (ipnTx.TransactionType == TransactionType.Subscr_Modify)
{
float amount = ipnTx.MC_AMOUNT3;//ipnTx.SubscriptionItems[2].Amount;
int cycle = ipnTx.SubscriptionItems[2].Period;
int cycleUnits = Convert.ToInt32(ipnTx.SubscriptionItems[2].TimeUnits);
BillingPlan plan = BillingPlan.FetchByPlanData(amount, cycle, cycleUnits);
Subscription subscription = Subscription.Fetch(subscriptionID);
subscription.RenewDate = ipnTx.SubscrEffectiveDate;
DateTime effectiveDate = ipnTx.SubscrEffectiveDate;
switch (plan.CycleUnit)
{
case CycleUnits.Days:
subscription.RenewDate = subscription.RenewDate.AddDays(plan.Cycle);
break;
case CycleUnits.Weeks:
subscription.RenewDate = subscription.RenewDate.AddDays(plan.Cycle * 7);
break;
case CycleUnits.Months:
subscription.RenewDate = subscription.RenewDate.AddMonths(plan.Cycle);
break;
case CycleUnits.Years:
subscription.RenewDate = subscription.RenewDate.AddYears(plan.Cycle);
break;
}
subscription.PlanID = plan.ID;
subscription.Update();
}
switch (ipnTx.TransactionType)
{
case TransactionType.Subscr_Cancel:
Subscription.RequestCancellation(subscriptionID);
break;
case TransactionType.Subscr_Eot:
//case TransactionType.Subscr_Cancel:
//change the user's status to INACTIVE
Subscription.Cancel(subscriptionID);
ezFixUp.Classes.User.SetAsPaidUser(subscriptionID, false);
break;
}
}
return true;
}
/// <summary>
/// Used to set IPN values related to a product.
/// </summary>
/// <remarks>
/// This method should not be used directly. Instead use
/// <see cref="SetIpnTransactionProperties"/>.
/// </remarks>
/// <param name="key">The key used to find the property.</param>
/// <param name="val">The value to set to the property.</param>
/// <param name="ipn">The <see cref="IpnTransaction"/> to set to.</param>
/// <returns>TRUE if a property was set, otherwise returns FALSE.</returns>
private bool SetIpnTransactionProperties_Product(string key, string val, IpnTransaction ipn)
{
if (key.StartsWith("item_name"))
{
int itemIndex;
try
{
itemIndex = Int32.Parse(key.Substring(9)); // 9 is itemIndex after "item_name"
}
catch (Exception)
{
// If no itemIndex, then just single item
itemIndex = 1;
}
if (ipn.Items.Count < itemIndex)
{
for (int i = ipn.Items.Count; i < itemIndex; i++)
{
ipn.Items.Add(new CartItem());
}
}
ShoppingItem item = ipn.Items[itemIndex - 1];
item.ItemName = val;
}
else if (key.StartsWith("item_number"))
{
int itemIndex;
try
{
itemIndex = Int32.Parse(key.Substring(11)); // 11 is itemIndex after "item_number"
}
catch (Exception)
{
// If no itemIndex, then just single item
itemIndex = 1;
}
if (ipn.Items.Count < itemIndex)
{
for (int i = ipn.Items.Count; i < itemIndex; i++)
{
ipn.Items.Add(new CartItem());
}
}
ShoppingItem item = ipn.Items[itemIndex - 1];
item.ItemNumber = val;
}
else if (key.StartsWith("quantity"))
{
int itemIndex;
try
{
itemIndex = Int32.Parse(key.Substring(8)); // 8 is itemIndex after "quantity"
}
catch (Exception)
{
// If no itemIndex, then just single item
itemIndex = 1;
}
if (ipn.Items.Count < itemIndex)
{
for (int i = ipn.Items.Count; i < itemIndex; i++)
{
ipn.Items.Add(new CartItem());
}
}
CartItem item = (CartItem)ipn.Items[itemIndex - 1];
item.Quantity = Int32.Parse(val);
}
else
{
return false;
}
return true;
}
/// <summary>
/// Used to set IPN values related to a customer.
/// </summary>
/// <remarks>
/// This method should not be used directly. Instead use
/// <see cref="SetIpnTransactionProperties"/>.
/// </remarks>
/// <param name="key">The key used to find the property.</param>
/// <param name="val">The value to set to the property.</param>
/// <param name="ipn">The <see cref="IpnTransaction"/> to set to.</param>
/// <returns>TRUE if a property was set, otherwise returns FALSE.</returns>
private bool SetIpnTransactionProperties_Customer(string key, string val, IpnTransaction ipn)
{
// Only want to set these values
switch (key)
{
case "first_name":
ipn.CustomerInfo.FirstName = val;
break;
case "last_name":
ipn.CustomerInfo.LastName = val;
break;
case "payer_business_name":
ipn.CustomerInfo.BusinessName = val;
break;
case "address_name":
ipn.CustomerInfo.AddressName = val;
break;
case "address_street":
ipn.CustomerInfo.Address1 = val;
break;
case "address_city":
ipn.CustomerInfo.City = val;
break;
case "address_state":
ipn.CustomerInfo.State = val;
break;
case "address_zip":
ipn.CustomerInfo.Zip = val;
break;
case "address_country":
ipn.CustomerInfo.Country = val;
break;
case "address_status":
ipn.SetProperty("address_status", val);
break;
case "payer_email":
ipn.CustomerInfo.Email = val;
break;
case "payer_id":
ipn.CustomerInfo.PayerID = val;
break;
case "payer_status":
ipn.SetProperty("payer_status", val);
break;
default:
return false;
}
return true;
}
/// <summary>
/// Used to set IPN values related to a subscription.
/// </summary>
/// <remarks>
/// This method should not be used directly. Instead use
/// <see cref="SetIpnTransactionProperties"/>.
/// </remarks>
/// <param name="key">The key used to find the property.</param>
/// <param name="val">The value to set to the property.</param>
/// <param name="ipn">The <see cref="IpnTransaction"/> to set to.</param>
/// <returns>TRUE if a property was set, otherwise returns FALSE.</returns>
private bool SetIpnTransactionProperties_SubscriptionItem(string key, string val, IpnTransaction ipn)
{
// Only want to set these values
int nSubItemIndex;
switch (key)
{
case "amount1":
case "amount2":
case "amount3":
nSubItemIndex = Int32.Parse(key.Substring(6)) - 1;
ipn.SubscriptionItems[nSubItemIndex].Amount = Convert.ToSingle(val);
break;
case "period1":
case "period2":
case "period3":
nSubItemIndex = Int32.Parse(key.Substring(6)) - 1;
// Parse the period IPN variable into it's parts
string strPeriod, strTimeUnit;
strPeriod = val.Substring(0, val.IndexOf(' '));
strTimeUnit = val.Substring(val.IndexOf(' ') + 1);
// Set corresponding SubscriptionItems properties
ipn.SubscriptionItems[nSubItemIndex].Period = Convert.ToInt32(strPeriod);
switch (strTimeUnit.ToUpper())
{
case "D":
ipn.SubscriptionItems[nSubItemIndex].TimeUnits = SubscriptionPeriodUnits.Days;
break;
case "W":
ipn.SubscriptionItems[nSubItemIndex].TimeUnits = SubscriptionPeriodUnits.Weeks;
break;
case "M":
ipn.SubscriptionItems[nSubItemIndex].TimeUnits = SubscriptionPeriodUnits.Months;
break;
case "Y":
ipn.SubscriptionItems[nSubItemIndex].TimeUnits = SubscriptionPeriodUnits.Years;
break;
}
break;
default:
return false;
}
return true;
}
/// <summary>
/// Helper function used to set the property value for an <see cref="IpnTransaction"/> object
/// for the given key.
/// </summary>
/// <param name="key">The key used to find the property.</param>
/// <param name="val">The value to set to the property.</param>
/// <param name="ipn">The <see cref="IpnTransaction"/> to set to.</param>
private void SetIpnTransactionProperties(string key, string val, IpnTransaction ipn)
{
Debug.Assert(key != null, "Cannot find property with key == null!");
Debug.Assert(val != null, "Cannot set property with val == null!");
Debug.Assert(ipn != null, "Cannot set property with ipn == null!");
// Set Date/Time Properties
if (SetIpnTransactionProperties_Date(key, val, ipn))
{
return;
}
// Set Buyer Information Properties
else if (SetIpnTransactionProperties_Customer(key, val, ipn))
{
return;
}
// Set Product Information Properties
else if (SetIpnTransactionProperties_Product(key, val, ipn))
{
return;
}
// Set Subscriptions Information Properties
else if (SetIpnTransactionProperties_SubscriptionItem(key, val, ipn))
{
return;
}
// Set Generically
else
{
ipn.SetProperty(key, val);
}
}
/// <summary>
/// Creates an <see cref="IpnTransaction"/> based on the current instance of the IPN message.
/// </summary>
/// <remarks>
/// This will use the current <see cref="HttpRequest.Form"/> values.
/// </remarks>
/// <returns>An instance of <see cref="IpnTransaction"/> that represents the current IPN.</returns>
private IpnTransaction CreateIpnTransaction()
{
IpnTransaction ipn = new IpnTransaction();
// Do some preprocessing first
if (Request.Form["txn_type"] == "cart")
{
// Figure out how many items in the cart
int cartCount = Int32.Parse(Request.Form["num_cart_items"] ?? "1");
for (int i = 0; i < cartCount; i++)
{
ipn.Items.Add(new CartItem());
}
}
// Loop through all the keys in the Form
Debug.Assert(Request.Form != null, "Form was null!");
Debug.Assert(Request.Form.Keys != null, "Form Keys was null!");
foreach (string key in Request.Form.Keys)
{
try
{
SetIpnTransactionProperties(key, Request.Form[key], ipn);
}
catch (Exception)
{
// An error in parsing the key/value will be skipped
continue;
}
}
ipn.RawIPN = Request.Form.ToString();
return ipn;
}
