美好的一天 我一直在尝试为 PayPal 运行 IPN 处理程序；我已遵循所有可能的说明(我希望)，但是在 paypal IPN 测试工具上我不断收到代码 500 的错误。 我使用的代码是 johnmendez00 作为开源提供的代码；通过创建实例来调用该类，如下所示
PPIPN objPP = new PPIPN("TEST");
objPP.FromEmail = "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d5b0b8b4bcb995acbaa0a7b1bab8b4bcbbfbb6bab8" rel="noreferrer noopener nofollow">[email protected]</a>";
objPP.FromEmailPassword = "yourpassword";
objPP.SmtpHost = "yourSMTPHost";
objPP.SmtpPort = "SMTPHostPort";
objPP.ToEmail = "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="84fdebf1f6e1e9e5ede8e5f0d4e5fdd4e5e8c4e0ebe9e5edeaaae7ebe9" rel="noreferrer noopener nofollow">[email protected]</a>";/
objPP.MakeHttpPost();
objPP.CheckStatus();
实例的类如下:
/// <summary>
/// Project can be found in http://paypalipnclass.codeplex.com/
/// </summary>
using System.Net;
using System.Net.Mail;
using System.IO;
using System.Text;
using System.Web;
using System.Data;
using System.Data.SqlClient;
using System;
using System.Configuration;
public class PPIPN
{
string _txnID, _txnType, _paymentStatus, _receiverEmail, _itemName, _itemNumber, _quantity, _invoice, _custom,
_paymentGross, _payerEmail, _pendingReason, _paymentDate, _paymentFee, _firstName, _lastName, _address,
_city, _state, _zip, _country, _countryCode, _addressStatus, _payerStatus, _payerID, _paymentType, _notifyVersion,
_verifySign, _response, _payerPhone, _payerBusinessName, _business, _receiverID, _memo, _tax, _qtyCartItems,
_shippingMethod, _shipping;
private string _postUrl = "";
private string _strRequest = "";
private string _smtpHost, _fromEmail, _toEmail, _fromEmailPassword, _smtpPort;
/// <summary>
/// valid strings are "TEST" for sandbox use
/// "LIVE" for production use
/// "ELITE" for test use off of PayPal...avoid having to be logged into PayPal Developer
/// </summary>
/// <param name="mode"></param>
public PPIPN(string mode)
{
if (mode.ToLower() == "test")
this.PostUrl = "https://www.sandbox.paypal.com/cgi-bin/webscr";
else if (mode.ToLower() == "live")
this.PostUrl = "https://www.paypal.com/cgi-bin/webscr";
else if (mode.ToLower() == "elite")
this.PostUrl = "http://www.eliteweaver.co.uk/testing/ipntest.php";
else
this.PostUrl = "";
//this.fillProperties();
}
#region "Properties"
private string PostUrl
{
get { return _postUrl; }
set { _postUrl = value; }
}
/// <summary>
/// This is the reponse back from the http post back to PayPal.
/// Possible values are "VERIFIED" or "INVALID"
/// </summary>
private string Response
{
get { return _response; }
set { _response = value; }
}
private string RequestLength
{
get { return _strRequest; }
set { _strRequest = value; }
}
/// <summary>
/// Provide your outgoing email server to use are your SMTP host
/// </summary>
public string SmtpHost
{
get { return _smtpHost; }
set { _smtpHost = value; }
}
/// <summary>
/// Provide the port your outgoing SMTP host uses
/// </summary>
public string SmtpPort
{
get { return _smtpPort; }
set { _smtpPort = value; }
}
/// <summary>
/// This is the email address that will show to the customer and you. This most likely
/// needs to be a valid email address that your SMTP server will accept
/// Examples would be something like <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="2a444507584f5a46536a53455f584e45474b434404494547" rel="noreferrer noopener nofollow">[email protected]</a>
/// </summary>
public string FromEmail
{
get { return _fromEmail; }
set { _fromEmail = value; }
}
/// <summary>
/// This is the password that the FromEmail property will use. This needs to be the password
/// for the email account itself
/// </summary>
public string FromEmailPassword
{
get { return _fromEmailPassword; }
set { _fromEmailPassword = value; }
}
/// <summary>
/// This is the email address that you use for yourself. This should be set to
/// the email that is registered for your PayPal account.
/// </summary>
public string ToEmail
{
get { return _toEmail; }
set { _toEmail = value; }
}
/// <summary>
/// Email address or Account ID of the payment recipient. This is equivalent
/// to the value of receiver_email if the payment is sent to the primary account
/// , which is most cases it is. This value is that value of what is set in the button html
/// markup. This value also get normalized to lowercase when coming back from PayPal
/// </summary>
private string Business
{
get { return _business; }
set { _business = value; }
}
/// <summary>
/// Unique transaction ID generated by PayPal. Helpful to use for checking
/// against fraud to make sure the transaction hasn't already occured.
/// </summary>
private string TXN_ID
{
get { return _txnID; }
set { _txnID = value; }
}
/// <summary>
/// Type of transaction from the customer. Possible values are
/// "cart", "express_checkout", "send_money", "virtual_terminal", "web-accept"
/// </summary>
private string TXN_Type
{
get { return _txnType; }
set { _txnType = value; }
}
/// <summary>
/// This is the status of the payment from the Customer.Possible values are:
/// "Canceled_Reversal", "Completed", "Denied", "Expired", "Failed", "Pending",
/// "Processed", "Refunded", "Reversed", "Voided"
/// </summary>
private string PaymentStatus
{
get { return _paymentStatus; }
set { _paymentStatus = value; }
}
/// <summary>
/// Primary email address of you, the recipient, of the payment.
/// </summary>
private string ReceiverEmail
{
get { return _receiverEmail; }
set { _receiverEmail = value; }
}
/// <summary>
/// unique account ID of the payment recipient, which is most likely yourself.
/// </summary>
private string ReceiverID
{
get { return _receiverID; }
set { _receiverID = value; }
}
/// <summary>
/// This is the item name passed by yourself or if the customer if you let them enter in an item name
/// </summary>
private string ItemName
{
get { return _itemName; }
set { _itemName = value; }
}
/// <summary>
/// This is the item number you set for your own tracking purposes. It is not required by PayPal
/// so if you didn't set it most likely will come back blank.
/// </summary>
private string ItemNumber
{
get { return _itemNumber; }
set { _itemNumber = value; }
}
/// <summary>
/// Quantity of the item ordered by the customer
/// </summary>
private string Quantity
{
get { return _quantity; }
set { _quantity = value; }
}
/// <summary>
/// Quantity of the items in the shopping cart from the Customer
/// </summary>
private string QuantityCartItems
{
get { return _qtyCartItems; }
set { _qtyCartItems = value; }
}
/// <summary>
/// Invoice number passed by yourself, if you didn't pass it to PayPal then this is omitted.
/// </summary>
private string Invoice
{
get { return _invoice; }
set { _invoice = value; }
}
/// <summary>
/// Custom value passed by yourself with the item.
/// </summary>
private string Custom
{
get { return _custom; }
set { _custom = value; }
}
/// <summary>
/// Memo entered in by the customer on PayPal website note field
/// </summary>
private string Memo
{
get { return _memo; }
set { _memo = value; }
}
/// <summary>
/// Amount of tax charged on the payment
/// </summary>
private string Tax
{
get { return _tax; }
set { _tax = value; }
}
/// <summary>
/// Full USD amount of customer's payment before the PayPal fee is subtracted
/// </summary>
private string PaymentGross
{
get { return _paymentGross; }
set { _paymentGross = value; }
}
/// <summary>
/// Date Time stamp created by PayPal in the following format:
/// HH:MM:SS DD Mmm YY, YYYY PST
/// </summary>
private string PaymentDate
{
get { return _paymentDate; }
set { _paymentDate = value; }
}
/// <summary>
/// PayPal's transaction fees associated with purchase.
/// </summary>
private string PaymentFee
{
get { return _paymentFee; }
set { _paymentFee = value; }
}
/// <summary>
/// This is the email that the customer used on PayPal or that
/// is registered with PayPal
/// </summary>
private string PayerEmail
{
get { return _payerEmail; }
set { _payerEmail = value; }
}
/// <summary>
/// Customer's phone number
/// </summary>
private string PayerPhone
{
get { return _payerPhone; }
set { _payerPhone = value; }
}
/// <summary>
/// Customer's company name if they represent a business
/// </summary>
private string PayerBusinessName
{
get { return _payerBusinessName; }
set { _payerBusinessName = value; }
}
/// <summary>
/// This variable is only set if the payment_status=Pending. Possible values are the following:
/// "address", "authorization", "echeck", "intl", "multi-currency", "unilateral", "upgrade",
/// "verify", other"
/// </summary>
private string PendingReason
{
get { return _pendingReason; }
set { _pendingReason = value; }
}
/// <summary>
/// This is indicated from what is set in your PayPal profile settings
/// </summary>
private string ShippingMethod
{
get { return _shippingMethod; }
set { _shippingMethod = value; }
}
/// <summary>
/// Shipping charges associated with the order.
/// </summary>
private string Shipping
{
get { return _shipping; }
set { _shipping = value; }
}
/// <summary>
/// Customer's First Name
/// </summary>
private string PayerFirstName
{
get { return _firstName; }
set { _firstName = value; }
}
/// <summary>
/// Customer's Last Name
/// </summary>
private string PayerLastName
{
get { return _lastName; }
set { _lastName = value; }
}
/// <summary>
/// Customer's street address
/// </summary>
private string PayerAddress
{
get { return _address; }
set { _address = value; }
}
/// <summary>
/// Customer's city
/// </summary>
private string PayerCity
{
get { return _city; }
set { _city = value; }
}
/// <summary>
/// Customer state of address
/// </summary>
private string PayerState
{
get { return _state; }
set { _state = value; }
}
/// <summary>
/// Zip code of customer's address
/// </summary>
private string PayerZipCode
{
get { return _zip; }
set { _zip = value; }
}
/// <summary>
/// Customer's country
/// </summary>
private string PayerCountry
{
get { return _country; }
set { _country = value; }
}
/// <summary>
/// Customer's 2 character country code
/// </summary>
private string PayerCountryCode
{
get { return _countryCode; }
set { _countryCode = value; }
}
/// <summary>
/// The the address provided is either confirmed or uncomfirmed from PayaPal. Possible values from PayPal
/// are going to be "confirmed" or "unconfirmed"
/// </summary>
private string PayerAddressStatus
{
get { return _addressStatus; }
set { _addressStatus = value; }
}
/// <summary>
/// Customer either had a verified or unverified account with PayPal.
/// Possible return values from PayPal are "verified" or "unverified"
/// </summary>
private string PayerStatus
{
get { return _payerStatus; }
set { _payerStatus = value; }
}
/// <summary>
/// Customer's unique ID
/// </summary>
private string PayerID
{
get { return _payerID; }
set { _payerID = value; }
}
/// <summary>
/// Type of payment from Customer. Possible values from PayPal are "echeck" and "instant"
/// </summary>
private string PaymentType
{
get { return _paymentType; }
set { _paymentType = value; }
}
/// <summary>
/// This is the version number of the IPN that makes the post.
/// </summary>
private string NotifyVersion
{
get { return _notifyVersion; }
set { _notifyVersion = value; }
}
/// <summary>
/// An encrypted string that is used to validate the transaction. You don't have to use this for anything
/// unless you want to keep it and store it for your records.
/// </summary>
private string VerifySign
{
get { return _verifySign; }
set { _verifySign = value; }
}
#endregion
#region "Make HTTP POST"
/// <summary>
/// This makes the post back to PayPal to verify the order.
/// </summary>
public void MakeHttpPost()
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(this.PostUrl);
req.Method = "POST";
req.ContentLength = this.RequestLength.Length + 21;
req.ContentType = "application/x-www-form-urlencoded";
byte[] param = HttpContext.Current.Request.BinaryRead(HttpContext.Current.Request.ContentLength);
this.RequestLength = Encoding.ASCII.GetString(param);
this.RequestLength += "&cmd=_notify-validate";
req.ContentLength = this.RequestLength.Length;
StreamWriter streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
streamOut.Write(this.RequestLength);
streamOut.Close();
StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
this.Response = streamIn.ReadToEnd();
streamIn.Close();
}
#endregion
#region "Check Status of Order"
/// <summary>
/// This checks the status of the order and notifies you via email the status.
/// </summary>
public void CheckStatus()
{
this.fillProperties();
switch (this.Response)
{
case "VERIFIED":
switch (this.PaymentStatus)
{
case "Completed": //If statement to check and verify the business email and that the script was triggered from the buy_now button.
if (this.ReceiverEmail == this.ToEmail)
{
switch (this.TXN_Type)
{
case "cart":
this.EmailUs("PayPal: Successful Order from Cart");
break;
case "express_checkout":
this.EmailUs("PayPal: Successful Order from Express Checkout");
break;
case "send_money":
this.EmailUs("PayPal: Successful Order from Send Money");
break;
case "virtual_terminal":
this.EmailUs("PayPal: Successful Order from Virtual Terminal");
break;
case "web_accept":
this.EmailUs("PayPal: Successful Order from Web_Accept");
break;
default:
this.EmailUs("PayPal: Order has been placed");
break;
}
}
else
{
this.EmailUs("PayPal: Unknown order...please check your paypal account");
}
break;
case "Pending":
switch (this.PendingReason)
{
case "address":
this.EmailUs("PayPal: Pending Order because of address");
break;
case "authorization":
this.EmailUs("PayPal: Pending Order because of authorization");
break;
case "echeck":
this.EmailUs("PayPal: Pending Order because of echeck");
break;
case "intl":
this.EmailUs("PayPal: Pending Order because of non-US Acccount");
break;
case "multi-currency":
this.EmailUs("PayPal: Pending Order because of multi-currency");
break;
case "unilateral":
this.EmailUs("PayPal: Pending Order because of Unilateral");
break;
case "upgrade":
this.EmailUs("PayPal: Pending Order because of Upgrade");
break;
case "verify":
this.EmailUs("PayPal: Pending Order because of Verification needed");
break;
case "other":
this.EmailUs("PayPal: Pending Order because of other reason");
break;
default:
this.EmailUs(string.Format("PayPal: Pending Order because of unknown reason of {0}", this.PendingReason));
break;
}
break;
case "Failed":
this.EmailUs("PayPal: Failed order");
break;
case "Denied":
this.EmailUs("PayPal: Denied order");
break;
}
this.EmailBuyer("Order Received", "Your order has been received and will begin processing shortly.");
break;
case "INVALID":
this.EmailUs("PayPal: Invalid order, please review and investigate");
break;
default:
this.EmailUs("PayPal: ERROR, response is " + this.Response);
break;
}
}
#endregion
#region "Mail Company the Order"
/// <summary>
/// Email yourself/company the order. This requires a subject line. Make sure to set SMTP properties of the PayPal object
/// and the FromEmail and ToEmail properties as well.
/// </summary>
/// <param name="subject"></param>
private void EmailUs(string subject)
{
MailMessage mailObj = new MailMessage();
mailObj.From = new MailAddress(this.FromEmail);
mailObj.Subject = subject;
mailObj.To.Add(new MailAddress(this.ToEmail));
mailObj.IsBodyHtml = true;
mailObj.Body = "<br />"
+ "Transaction ID: " + this.TXN_ID + "<br />"
+ "Transaction Type:" + this.TXN_Type + "<br />"
+ "Payment Type: " + this.PaymentType + "<br />"
+ "Payment Status: " + this.PaymentStatus + "<br />"
+ "Pending Reason: " + this.PendingReason + "<br />"
+ "Payment Date: " + this.PaymentDate + "<br />"
+ "Receiver Email: " + this.ReceiverEmail + "<br />"
+ "Invoice: " + this.Invoice + "<br />"
+ "Item Number: " + this.ItemNumber + "<br />"
+ "Item Name: " + this.ItemName + "<br />"
+ "Quantity: " + this.Quantity + "<br />"
+ "Custom: " + this.Custom + "<br />"
+ "Payment Gross: " + this.PaymentGross + "<br />"
+ "Payment Fee: " + this.PaymentFee + "<br />"
+ "Payer Email: " + this.PayerEmail + "<br />"
+ "First Name: " + this.PayerFirstName + "<br />"
+ "Last Name: " + this.PayerLastName + "<br />"
+ "Street Address: " + this.PayerAddress + "<br />"
+ "City: " + this.PayerCity + "<br />"
+ "State: " + this.PayerState + "<br />"
+ "Zip Code: " + this.PayerZipCode + "<br />"
+ "Country: " + this.PayerCountry + "<br />"
+ "Address Status: " + this.PayerAddressStatus + "<br />"
+ "Payer Status: " + this.PayerStatus + "<br />"
+ "Verify Sign: " + this.VerifySign + "<br />"
+ "Notify Version: " + this.NotifyVersion + "<br />";
SmtpClient objSmtp = new SmtpClient();
objSmtp.Host = this.SmtpHost;
objSmtp.Port = System.Int32.Parse(this.SmtpPort);
objSmtp.UseDefaultCredentials = false;
objSmtp.Credentials = new System.Net.NetworkCredential(this.FromEmail, this.FromEmailPassword);
objSmtp.DeliveryMethod = SmtpDeliveryMethod.Network;
objSmtp.Send(mailObj);
}
#endregion
#region "Mail the Customer the Order details"
private void EmailBuyer(string subject, string message)
{
MailMessage mailObj = new MailMessage();
mailObj.From = new MailAddress(this.FromEmail);
mailObj.Subject = subject;
mailObj.Body = message;
mailObj.To.Add(new MailAddress(this.PayerEmail));
mailObj.IsBodyHtml = true;
SmtpClient objSmtp = new SmtpClient();
objSmtp.Host = this.SmtpHost;
objSmtp.Port = System.Int32.Parse(this.SmtpPort);
objSmtp.UseDefaultCredentials = false;
objSmtp.Credentials = new System.Net.NetworkCredential(this.FromEmail, this.FromEmailPassword);
objSmtp.DeliveryMethod = SmtpDeliveryMethod.Network;
objSmtp.Send(mailObj);
}
#endregion
#region "Fill Properties"
private void fillProperties()
{
this.RequestLength = HttpContext.Current.Request.Form.ToString();
this.PayerCity = HttpContext.Current.Request.Form["address_city"];
this.PayerCountry = HttpContext.Current.Request.Form["address_country"];
this.PayerCountryCode = HttpContext.Current.Request.Form["address_country_code"];
this.PayerState = HttpContext.Current.Request.Form["address_state"];
this.PayerAddressStatus = HttpContext.Current.Request.Form["address_status"];
this.PayerAddress = HttpContext.Current.Request.Form["address_street"];
this.PayerZipCode = HttpContext.Current.Request.Form["address_zip"];
this.PayerFirstName = HttpContext.Current.Request.Form["first_name"];
this.PayerLastName = HttpContext.Current.Request.Form["last_name"];
this.PayerBusinessName = HttpContext.Current.Request.Form["payer_business_name"];
this.PayerEmail = HttpContext.Current.Request.Form["payer_email"];
this.PayerID = HttpContext.Current.Request.Form["payer_id"];
this.PayerStatus = HttpContext.Current.Request.Form["payer_status"];
// this.PayerPhone = HttpContext.Current.Request.Form["contact_phone"];
this.Business = HttpContext.Current.Request.Form["business"];
this.ItemName = HttpContext.Current.Request.Form["item_name"];
this.ItemNumber = HttpContext.Current.Request.Form["item_number"];
this.Quantity = HttpContext.Current.Request.Form["quantity"];
this.ReceiverEmail = HttpContext.Current.Request.Form["receiver_email"];
this.ReceiverID = HttpContext.Current.Request.Form["receiver_id"];
this.Custom = HttpContext.Current.Request.Form["custom"];
// this.Memo = HttpContext.Current.Request.Form["memo"];
this.Invoice = HttpContext.Current.Request.Form["invoice"];
this.Tax = HttpContext.Current.Request.Form["tax"];
this.QuantityCartItems = HttpContext.Current.Request.Form["num_cart_items"];
this.PaymentDate = HttpContext.Current.Request.Form["payment_date"];
this.PaymentStatus = HttpContext.Current.Request.Form["payment_status"];
this.PaymentType = HttpContext.Current.Request.Form["payment_type"];
this.PendingReason = HttpContext.Current.Request.Form["pending_reason"];
this.TXN_ID = HttpContext.Current.Request.Form["txn_id"];
this.TXN_Type = HttpContext.Current.Request.Form["txn_type"];
this.PaymentFee = HttpContext.Current.Request.Form["mc_fee"];
this.PaymentGross = HttpContext.Current.Request.Form["mc_gross"];
this.NotifyVersion = HttpContext.Current.Request.Form["notify_version"];
// this.VerifySign = HttpContext.Current.Request.Form["verify_sign"];
}
#endregion
}
对这里可能出现的问题有什么想法吗？
最佳答案
PayPal 网站的按钮 HTML 嵌入在表单标记中。 ASP.NET 页面上只能有一种表单，ASP.NET 提供了自己的表单。如果您有一个母版页，那么表单标签就在那里，并且当它们在运行时与母版合并时，它会应用于站点中的每个页面。
我发现了一个elegant solution Jeremy Schneider 的博客上包含一个自定义 HtmlForm 类，可以打开和关闭表单标记渲染。该类称为 GhostForm，并具有一个属性 RenderFormTag。当 RenderFormTag 设置为 false 时，它不会呈现开始或结束标记，但会呈现所有内容。引用自定义 GhostForm 类，并在放置按钮的表单的代码隐藏中，将以下内容放入 Page_Load 中以禁用母版页表单标记:
用法:
public partial class Products : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
GhostForm mainForm = new GhostForm();
mainForm.RenderFormTag = false;
.....
}
// Send your data to PayPal :-)
.....
}
重要提示:在发送此请求之前，请确保您已登录沙箱。
和您一样，我也使用了 John Mendez 提供的 IPN 代码。这是我从 PayPal 发送和接收的位置:
string strSandbox = "https://www.sandbox.paypal.com/cgi-bin/webscr";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strLive);
//Set values for the request back to PayPal
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
byte[] param = Request.BinaryRead(HttpContext.Current.Request.ContentLength);
string strRequest = Encoding.ASCII.GetString(param);
strRequest += "&cmd=_notify-validate";
req.ContentLength = strRequest.Length;
//Send the request to PayPal
StreamWriter streamOut =
new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
streamOut.Write(strRequest);
streamOut.Close();
// Get the response from PayPal
StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
string strResponse = streamIn.ReadToEnd();
streamIn.Close();
希望这有帮助。 500 个错误可能是什么......
关于c# - 无法通过Paypal测试工具测试IPN(HTTP错误代码500)_Asp.net，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/12884549/