PayPal IPN 监听器——使用 CURL 发送响应

Question

我正在尝试使用 CURL 设置我的 PayPal IPN Listener。我从 Paypal 收到的 POST 数据很好，但在发回回复时我遇到了困难。

这是我试图发送回 Paypal 的测试，寻找预期的“已验证”或“无效”响应。

    $string = 'cmd=_notify-validate&test_ipn=1&payment_type=instant&payment_date=13%3A49%3A46+Dec+01%2C+2010+PST&payment_status=Completed&address_status=confirmed&payer_status=verified&first_name=John&last_name=Smith&payer_email=buyer%40paypalsandbox.com&payer_id=TESTBUYERID01&address_name=John+Smith&address_country=United+States&address_country_code=US&address_zip=95131&address_state=CA&address_city=San+Jose&address_street=123%2C+any+street&business=seller%40paypalsandbox.com&receiver_email=seller%40paypalsandbox.com&receiver_id=TESTSELLERID1&residence_country=US&item_name=something&item_number=AK-1234&quantity=1&shipping=3.04&tax=2.02&mc_currency=USD&mc_fee=0.44&mc_gross=12.34&mc_gross_1=9.34&txn_type=web_accept&txn_id=461212149&notify_version=2.1&custom=xyz123&charset=windows-1252&verify_sign=AHaXyf3zaDTb0y4MveMg3L5zjpqNAElZcXU6rvpq5jsGR30FGG6OehkN';

    $endpoint = 'https://www.sandbox.paypal.com/';

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $endpoint);
    curl_setopt($ch, CURLOPT_HEADER, TRUE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $string);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_TIMEOUT, 30);
    $result = curl_exec($ch);
    curl_close($ch);

    echo $result;

我正在使用沙盒 IPN 测试模拟器向我的听众发送 IPN 信号。我正在将回复发送至 https://www.sandbox.paypal.com/。

无论我向 Paypal 发送什么数据，我都会收到这样的响应：

HTTP/1.1 301 Moved Permanently
Date: Wed, 01 Dec 2010 23:34:30 GMT
Server: Apache
Set-Cookie: c9MWDuvPtT9GIMyPc3jwol1VSlO=%7cPwtfdnvWZ1WVsa34w2F4FnUT4lXZCFSynqbMXEb4n-DLVEWN-dbmDX86YMRj6lgQyDfDGW%7cgeDqSysrRWP1DZZKq9pFf2j5ZBlu0nORtDS4-uXC_YGN8BtbwSBf1d6vq-77_078ySZeRG%7c; domain=.paypal.com; path=/
Set-Cookie: -1ILhdyICORs4hS4xTUr41S8iP0=cH14qDWDhwMs_KbBH2sE-6AG-wKvoQqYPWtsICHmeL1gU49_4McpLl14aXD3KVyvQsmhfiPzKd-Ekiwm; expires=Tue, 26-Nov-2030 23:34:31 GMT; domain=.paypal.com; path=/
Set-Cookie: cookie_check=yes; expires=Sat, 28-Nov-2020 23:34:31 GMT; domain=.paypal.com; path=/
Set-Cookie: Apache=10.191.196.11.135781291246470532; path=/; expires=Tue, 18-Oct-04 17:06:14 GMT
Location: https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_home&country_lang.x=true
Cneonction: close
Transfer-Encoding: chunked
Content-Type: text/plain; charset=ISO-8859-1

这让我觉得我只是简单地发布到错误的网址，但这就是我应该使用的网址。

Answer 1

Paypal 的沙盒 URL 是：

https://www.sandbox.paypal.com/cgi-bin/webscr