那些遇到过的问题

PHP Paypal Auth/Capture NVP集成故障

Mar*_*arc 18 php payment curl paypal express-checkout

背景:

我们使用NVP集成和php-curl实现了Paypal授权和捕获流程.
完整的流程在PayPal开发者网站上有描述:https://developer.paypal.com/webapps/developer/docs/classic/express-checkout/ht_ec-singleAuthPayment-curl-etc/

在我们的网站上,当前的支付方案是:
- 首先,用户点击按钮发起支付授权,在PayPal网站上重定向他(具有payaction =授权的SetExpressCheckout)
- 如果用户成功确认PayPal网站上的付款,他被重定向到我们网站的特定成功页面
- 这个"成功页面" 从PayPal网站获取一个令牌和一个PayerID,然后我们调用GetExpressCheckoutDetails来检查状态和这个授权的数量
- 如果一切正常,我们告诉PayPal确认此授权(DoExpressCheckoutPayment with paymentaction = Authorization),我们获得一个授权ID存储到我们的数据库中
- 稍后,其他人可以使用我们存储的授权ID点击按钮来解决交易(DoCapture)

其他信息:

根据PayPal文档:

PayPal三天授予100%的授权资金
如果有未决的(未结算的)授权,买家和商家的账户将无法关闭
https://developer.paypal.com/docs/classic/paypal-payments-standard/integration-导向/ authcapture /

在我们的网站上,如果授权在24小时内未得到解决,则授权将自动失效.(使用crontab)

问题:

最后一部分出现问题(当我们调用"确认"功能时):当用户点击"确认"按钮时,似乎有时卷曲请求花费时间从PayPal返回交易ID.
当发生这种情况时,用户通常关闭网页,PayPal确认授权(从而转账)但我们的网站没有得到通知,因为下面的代码(来自下面的"源代码"部分)尚未执行或达成:

if ($transaction_id) {
    /*
     * [...]
     * Everything is ok, payment has been performed
     * so we do everything to give our user what he asked for
     */
} else {
    // Error : No transaction id
}
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因为脚本在获得curl响应之前停止了.
此外,如果我们再次尝试点击该按钮,PayPal会告诉我们授权ID不存在(因为已经执行).

但有时候一切顺利,没有任何问题或滞后.

源代码:

/*
 * This is our main function, called when
 * we have to settle our transaction 
 * when an user click on a "confirm" button
**/
public function confirm($cart_id) {
    /*
     * [...]
     * We check lot of stuff to be sure this user 
     * can perform this action
     */

    // We get theses values from the database
    authorization_id = "lorem ipsum";
    $amount = 10; 

    // We tell PayPal to settle the transaction
    $transaction_id = $this->settle_transaction($authorization_id, $amount);
    if ($transaction_id) {
        /*
         * [...]
         * Everything is ok, payment has been performed
         * so we do everything to give our user what he asked for
         */
    } else {
        // Error : No transaction id
    }
}

private function settle_transaction($authorization_id, $amount) {
    // Our credentials
    $params = array(
        "USER" => $this->paypal_user,
        "PWD" => $this->paypal_pwd,
        "SIGNATURE" => $this->paypal_signature,
        "VERSION" => 95
    );
    $params["METHOD"] = "DoCapture";
    $params["AUTHORIZATIONID"] = $authorization_id;
    $params["AMT"] = $amount;
    $params["CURRENCYCODE"] = "EUR";
    $params["COMPLETETYPE"] = "Complete";

    $result = $this->curl($params);
    if ($result) {
        // We check that this PayPal request has been successful
        if ($result["ACK"] == "Success") {
            $transaction_id = $result["TRANSACTIONID"];
            if ($result["PAYMENTSTATUS"] == "Completed") {
                return $transaction_id;
            }
        }
    }
    return NULL;
}


private function curl($params) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $this->paypal_endpoint);
    curl_setopt($ch, CURLOPT_POST, count($params));
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    parse_str(curl_exec($ch), $result);
    curl_close($ch);
    return $result;
}
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你有任何想法解决这个问题吗？
我正在考虑在脚本结束时解决交易问题,因为PayPal会在三天内将100%的授权资金用于奖励,而我只需要将它们保留1天,但我无论如何都不确定...

编辑1:

发生此问题时,我的apache2 error.log报告了此情况:

[Mon Aug 08 20:42:55.959330 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:42:56.960453 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:42:57.961188 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:42:58.962230 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:42:59.963297 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:00.964384 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:01.965476 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:02.966478 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:03.967595 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:04.968713 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:05.969783 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:06.970877 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:07.972002 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:08.972749 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:09.973847 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:10.974926 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:11.976080 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:12.977168 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:13.978244 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:14.979320 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:15.980414 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:16.981493 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:17.982578 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:18.983673 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:19.984762 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:20.985841 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:21.986650 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:22.987725 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:23.988826 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:24.989939 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:25.991061 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:26.992181 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:27.993305 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:28.994422 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:29.995556 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:30.996661 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:31.997774 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:32.998905 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:34.000089 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:35.001202 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:36.002326 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:37.003424 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:38.004551 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:39.005677 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:40.006799 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:41.007902 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:42.009021 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:43.010132 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:44.011245 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:45.012361 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:46.013479 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:47.014577 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:48.015685 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:49.016801 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:50.017906 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:51.018980 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:52.020049 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:53.021158 2016] [mpm_event:error] [pid 141:tid 3779940374400] AH00485: scoreboard is full, not at MaxRequestWorkers
[Mon Aug 08 20:43:53.391316 2016] [:error] [pid 980:tid 3779386513152] (104)Connection reset by peer: [client MY-IP:55236] FastCGI: failed to read from backend server, referer: http://####
[Mon Aug 08 21:18:04.748237 2016] [:error] [pid 1287:tid 3779782977280] (104)Connection reset by peer: [client MY-IP:37196] FastCGI: failed to read from backend server
Run Code Online (Sandbox Code Playgroud)

编辑2:

我发现这个话题似乎有类似的问题:

特别奇怪的是付款已正确处理.

而现在我似乎无法重现这个错误.
你认为它可能是PayPal问题还是类似的问题？
即使是这样,我也不确定这个问题不会再次发生,但我怎么能测试我是否无法重现这个问题？

han*_*rik 7

你需要了解ignore_user_abort(true);(并且可能set_time_limit(0);),使用它来避免脚本在代码中途退出的问题.第二,我可以建议在卷曲调用之前更新最近确认的令牌的数据库,这样如果用户退出,那么尝试再次按"确认",你就会知道它已经是一个已确认的令牌,并且不会重新 - 运行curl代码,可以立即通知用户吗？- http://php.net/manual/en/function.ignore-user-abort.php

  • 预警,一些共享的托管基础提供DOES NOT ALLOW ignore_user_abort /的set_time_limit进行修改,在运行时

Ama*_*tap 2

注意：并非所有付款都是即时的。如果买家只有一个与其 PayPal 帐户关联的银行帐户，则转账不会即时进行。因此，如果需要自动通知所有付款和相关活动，最好使用。IPN

根据 PayPal 官方文档：

即时付款通知(IPN) 是一种消息服务，用于通知您与 PayPal 交易相关的事件。您可以使用 IPN 消息来自动化后台和管理功能，例如履行订单、跟踪客户或提供状态和其他交易相关信息。

作为最佳实践，在您的IPN Listener. 有关集成指南，您可以参考此处：https ://developer.paypal.com/docs/classic/ipn/integration-guide/IPNImplementation/

几个月前我已经延长了PayPal 的PHP class期限。希望它可以作为起点有所帮助。请随意分叉：https ://github.com/datumradix/PayPal-IPN-PHP-Class- IPN Listener

编辑：(PayPal Documentation is not clear at many places and seems confusing to many first time readers)

IPN 可以作为辅助机制来确认 DoCapture 是否成功。IPN 变量如txn_type、txn_id、auth_id、auth_amount和payer_id均通过 IPN 通知。请参阅此处获取完整列表：https ://developer.paypal.com/docs/classic/ipn/integration-guide/IPNandPDTVariables/

注意：我们可以NOTIFYURL在每次调用中指定，也可以从 paypal 后端进行相同的设置。有关从 PayPal 配置文件设置进行相同设置的步骤，请参考：https://developer.paypal.com/docs/classic/ipn/integration-guide/IPNSetup/

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