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为什么Paypal在我运行订阅表单时出错?

  •  0
  • ShoeLace1291  · 技术社区  · 6 年前

    我从来没有能够成功地设置定期贝宝订阅按钮在我的网站上,因为贝宝总是给我的错误 Paypal cannot process this transaction because of a problem with the seller's website. 我已经在本地和IPN模拟器中测试了脚本,一切都很好。但是每当我尝试在沙盒模式下进行测试时,它都会给我这个错误。是我的代码有问题还是我的Paypal帐户有问题?我正试着在wordpress中设置这个。

    这是我的表格:

    if(get_option('jz_payment_environment') == 'local'){
        $form_action = site_url('gateway/paypal');
    } else if(get_option('jz_payment_environment') == 'sandbox'){
        $form_action = 'https://www.sandbox.paypal.com/cgi-bin/webscr';
    } else if(get_option('jz_payment_environment') == 'production'){
        $form_action = 'https://ipnpb.paypal.com/cgi-bin/webscr';
    }?>
    <form action="<?php echo $form_action;?>" method="post" target="_top">
    <input type="hidden" name="cmd" value="_s-xclick">
    <input type="hidden" name="hosted_button_id" value="">
    <input type="hidden" name="custom" value="<?php echo get_current_user_id();?>">
    <input type="hidden" name="business" value="<?php echo get_option('jz_paypal_email');?>">
    <?php if(get_option('jz_payment_environment') == 'local'):?>
    <input type="hidden" name="t3" value="M">
    <input type="hidden" name="p3" value="1">
    <input type="hidden" name="src" value="1">
    <input type="hidden" name="srt" value="52">
    <input type="hidden" name="currency_code" value="USD">
    <?php endif;?>
    

    以下是我的IPN短代码:

    public static function paypal_ipn(){
            global $wpdb;
            ob_start();
            if($_SERVER['REQUEST_METHOD'] == 'POST'){
                $ipn = new PaypalIPN();
                if(get_option('jz_payment_environment') == 'sandbox'){
                    $ipn->useSandbox();
                    $verified = $ipn->verifyIPN();
                } else if(get_option('jz_payment_environment') == 'local'){
                    $verified = true;
                } else if(get_option('jz_payment_environment') == 'production'){
                    $ipn->usePHPCerts();
                    $verified = $ipn->verifyIPN();
                }
                if($verified){
    
                   $payment = array(
                       'post_author' => $_POST['custom'],
                       'post_type' => 'payment',
                       'post_status' => 'publish',
                       'meta_input' => array(
                           'payment_amount' => $_POST['a3'],
                           'payment_expiration' => ($_POST['t3'] == 'M') ? time() + (60 * 60 * 24 * 30 * $_POST['p3']) : time() + (60 * 60 * 24 * 365),
                           'payment_currency' => $_POST['currency_code'],
                           'payment_status' => 'pending',
                           'payment_tpt_no' => (!empty($_POST['txn_id'])) ? $_POST['txn_id'] : 'N/A'
                       )
                   );
                   $payment_post = wp_insert_post($payment);
                   if(!is_wp_error($payment_post)){
                       $subscriber = get_userdata($_POST['custom']);
                       if($subscriber){
                           update_user_meta($subscriber, 'subscription_expiration', $payment['meta_input']['payment_expiration']);
                           $plan = $wpdb->get_row("
                               SELECT p.ID, pm1.meta_value as plan_monthly, pm2.meta_value as plan_quarterly, pm3.meta_value as plan_yearly
                               FROM {$wpdb->prefix}posts AS p
                               LEFT JOIN {$wpdb->prefix}postmeta AS pm1 ON p.ID = pm1.post_id AND pm1.meta_key = 'plan_monthly'
                               LEFT JOIN {$wpdb->prefix}postmeta AS pm2 ON p.ID = pm2.post_id AND pm2.meta_key = 'plan_quarterly'
                               LEFT JOIN {$wpdb->prefix}postmeta AS pm3 ON p.ID = pm3.post_id AND pm3.meta_key = 'plan_yearly'
                               WHERE post_type = 'plan'
                                   AND pm1.meta_value = '{$_POST['a3']}'
                                   OR pm2.meta_value = '{$_POST['a3']}'
                                   OR pm3.meta_value = {$_POST['a3']}
                               LIMIT 1
                               ");
                           update_user_meta($subscriber, 'subscription_plan', $plan->ID);
                       }
                   }
                }
            }
            header("HTTP/1.1 200 OK");
            $out = ob_get_contents();
            ob_end_clean();
            return $out;
        }
    

    下面是我在Paypal开发者网站上使用的Paypal IPN类:

    <?php
    class PaypalIPN
    {
        /** @var bool Indicates if the sandbox endpoint is used. */
        private $use_sandbox = false;
        /** @var bool Indicates if the local certificates are used. */
        private $use_local_certs = true;
        /** Production Postback URL */
        const VERIFY_URI = 'https://www.paypal.com/cgi-bin/webscr';
        /** Sandbox Postback URL */
        const SANDBOX_VERIFY_URI = 'https://www.sandbox.paypal.com/cgi-bin/webscr';
        /** Response from PayPal indicating validation was successful */
        const VALID = 'VERIFIED';
        /** Response from PayPal indicating validation failed */
        const INVALID = 'INVALID';
        const RESULT = '';
        /**
         * Sets the IPN verification to sandbox mode (for use when testing,
         * should not be enabled in production).
         * @return void
         */
        public function useSandbox()
        {
            $this->use_sandbox = true;
        }
        /**
         * Sets curl to use php curl's built in certs (may be required in some
         * environments).
         * @return void
         */
        public function usePHPCerts()
        {
            $this->use_local_certs = false;
        }
        /**
         * Determine endpoint to post the verification data to.
         *
         * @return string
         */
    
        public function getResult(){
            return self::RESULT;
        }
        public function getPaypalUri()
        {
            if ($this->use_sandbox) {
                return self::SANDBOX_VERIFY_URI;
            } else {
                return self::VERIFY_URI;
            }
        }
        /**
         * Verification Function
         * Sends the incoming post data back to PayPal using the cURL library.
         *
         * @return bool
         * @throws Exception
         */
        public function verifyIPN()
        {
            if ( ! count($_POST)) {
                throw new Exception("Missing POST Data");
            }
            $raw_post_data = file_get_contents('php://input');
            $raw_post_array = explode('&', $raw_post_data);
            $myPost = array();
            foreach ($raw_post_array as $keyval) {
                $keyval = explode('=', $keyval);
                if (count($keyval) == 2) {
                    // Since we do not want the plus in the datetime string to be encoded to a space, we manually encode it.
                    if ($keyval[0] === 'payment_date') {
                        if (substr_count($keyval[1], '+') === 1) {
                            $keyval[1] = str_replace('+', '%2B', $keyval[1]);
                        }
                    }
                    $myPost[$keyval[0]] = urldecode($keyval[1]);
                }
            }
            // Build the body of the verification post request, adding the _notify-validate command.
            $req = 'cmd=_notify-validate';
            $get_magic_quotes_exists = false;
            if (function_exists('get_magic_quotes_gpc')) {
                $get_magic_quotes_exists = true;
            }
            foreach ($myPost as $key => $value) {
                if ($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1) {
                    $value = urlencode(stripslashes($value));
                } else {
                    $value = urlencode($value);
                }
                $req .= "&$key=$value";
            }
            // Post the data back to PayPal, using curl. Throw exceptions if errors occur.
            $ch = curl_init($this->getPaypalUri());
            curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
            curl_setopt($ch, CURLOPT_SSLVERSION, 6);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
            // This is often required if the server is missing a global cert bundle, or is using an outdated one.
            if ($this->use_local_certs) {
                curl_setopt($ch, CURLOPT_CAINFO, 'W:/laragon/etc/ssl/cacert.pem');
            }
            curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'User-Agent: PHP-IPN-Verification-Script',
                'Connection: Close',
            ));
            if ( ! ($res = curl_exec($ch))) {
                $errno = curl_errno($ch);
                $errstr = curl_error($ch);
                curl_close($ch);
                throw new Exception("cURL error: [$errno] $errstr");
            }
            $info = curl_getinfo($ch);
            $http_code = $info['http_code'];
            if ($http_code != 200) {
                throw new Exception("PayPal responded with http code $http_code");
            }
            curl_close($ch);
            // Check if PayPal verifies the IPN data, and if so, return true.
            if ($res == self::VALID) {
                return true;
            } else {
                return false;
            }
        }
    }
    

    here . 我做错什么了?

    2 回复  |  直到 6 年前
        1
  •  0
  •   Preston PHX    6 年前

    如果要更改值,请不要使用托管按钮。使用未隐藏的按钮。在PayPal上创建一个新的示例按钮,在第2步中取消选中“保存”按钮的选项,一旦生成代码,单击以删除代码保护。然后你就有了可以用动态代码修改的东西。

        2
  •  0
  •   Ivan Skalauh    6 年前

    托管\u按钮\u id 参数为空。考虑删除它吗?

    您不应该为保存的按钮编写HTML按钮代码。始终使用贝宝生成的代码。但是,可以通过添加不影响事务量的隐藏HTML变量来增强为保存的按钮生成的代码。例如,可以使用自动填充变量增强保存的按钮。

    资料来源: https://developer.paypal.com/docs/classic/paypal-payments-standard/integration-guide/formbasics/#using-html-variables-with-saved-payment-buttons