163 lines
6.9 KiB
PHP
163 lines
6.9 KiB
PHP
<?php
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require_once(__DIR__ . '/includes/config.inc.php');
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if (is_file(__DIR__ . '/includes/log.php')) require_once(__DIR__ . '/includes/log.php');
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$config = [
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'sandbox' => true,
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'client_id' => 'AfvY_C2zA_hTHxHq7TIhtOeub4xBdySYrt_Hjj3d_WYQwjWI9NfOAVOTeResx2rgZ_nP5tOoxQSAHw8c',
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'client_secret' => 'EJ216np9cAj9n7KSddez3fLVxGe-zi4oKKKl1YGqPp88XIikr4Qzbxh0XW2as-V6LgdX-upjtQAg9dC0',
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'webhook_id' => '6N620673281740730',
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'data_dir' => rtrim(
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(defined('SITE_DATA_DIR') ? SITE_DATA_DIR : '') ?: ($SITE_DATA_DIR ?? ''),
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DIRECTORY_SEPARATOR
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),
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'log_file' => __DIR__ . '/data/webhook.log',
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];
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if (!$config['data_dir']) {
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$config['data_dir'] = realpath(__DIR__ . '/') . DIRECTORY_SEPARATOR . 'data';
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}
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function log_line($m){global $config; @file_put_contents($config['log_file'],'['.date('c')."] $m\n",FILE_APPEND);}
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function api_base(){global $config; return $config['sandbox'] ? 'https://api-m.sandbox.paypal.com' : 'https://api-m.paypal.com';}
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http_response_code(200);
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@mkdir($config['data_dir'], 0775, true);
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$raw = file_get_contents('php://input');
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$headers = array_change_key_case(getallheaders() ?: [], CASE_UPPER);
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if (function_exists('site_log_info')) site_log_info('webhook_hit', ['ip'=>($_SERVER['REMOTE_ADDR']??''),'bytes'=>strlen($raw)]);
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else log_line("HIT ip=".($_SERVER['REMOTE_ADDR']??'') ." bytes=".strlen($raw));
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if (!$raw) { log_line("NO_BODY"); exit; }
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// 1) OAuth2
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$ch = curl_init(api_base().'/v1/oauth2/token');
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER=>true,
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CURLOPT_POST=>true,
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CURLOPT_POSTFIELDS=>'grant_type=client_credentials',
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CURLOPT_HTTPHEADER=>['Accept: application/json'],
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CURLOPT_USERPWD=>$config['client_id'].':'.$config['client_secret'],
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]);
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$tokenResp = curl_exec($ch);
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$http = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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$o = ['http'=>$http,'resp'=>substr($tokenResp,0,400)];
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if ($http!==200){ if (function_exists('site_log_warn')) site_log_warn('oauth_fail',$o); else log_line("OAUTH_FAIL http=$http resp=$tokenResp"); exit; }
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$access_token = json_decode($tokenResp, true)['access_token'] ?? null;
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if (!$access_token){ if (function_exists('site_log_warn')) site_log_warn('oauth_no_token', []); else log_line("OAUTH_NO_TOKEN"); exit; }
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// 2) Verify webhook signature
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$verifyPayload = [
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'transmission_id' => $headers['PAYPAL-TRANSMISSION-ID'] ?? '',
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'transmission_time' => $headers['PAYPAL-TRANSMISSION-TIME'] ?? '',
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'cert_url' => $headers['PAYPAL-CERT-URL'] ?? '',
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'auth_algo' => $headers['PAYPAL-AUTH-ALGO'] ?? '',
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'transmission_sig' => $headers['PAYPAL-TRANSMISSION-SIG'] ?? '',
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'webhook_id' => $config['webhook_id'],
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'webhook_event' => json_decode($raw, true),
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];
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$ch = curl_init(api_base().'/v1/notifications/verify-webhook-signature');
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER=>true,
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CURLOPT_POST=>true,
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CURLOPT_POSTFIELDS=>json_encode($verifyPayload),
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CURLOPT_HTTPHEADER=>[
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'Content-Type: application/json',
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'Authorization: Bearer '.$access_token
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],
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]);
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$verifyResp = curl_exec($ch);
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$http = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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$verifyJson = json_decode($verifyResp, true);
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if ($http!==200 || ($verifyJson['verification_status'] ?? '') !== 'SUCCESS'){
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if (function_exists('site_log_warn')) site_log_warn('verify_fail', ['http'=>$http,'status'=>($verifyJson['verification_status']??'NONE')]);
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else log_line("VERIFY_FAIL http=$http status=".($verifyJson['verification_status']??'NONE'));
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exit;
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}
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if (function_exists('site_log_info')) site_log_info('verify_ok', ['http'=>$http]);
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else log_line("VERIFY_OK");
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// 3) Parse and persist
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$evt = json_decode($raw, true);
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$type = $evt['event_type'] ?? '';
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$res = $evt['resource'] ?? [];
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$invoice = $res['invoice_id'] ?? ($res['invoice_number'] ?? null);
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$custom = $res['custom_id'] ?? ($res['custom'] ?? null);
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$amount = $res['amount']['value'] ?? ($res['amount']['total'] ?? null);
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$currency = $res['amount']['currency_code'] ?? ($res['amount']['currency'] ?? null);
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$payer = $res['payer']['email_address'] ?? ($res['payer']['payer_info']['email'] ?? null);
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$items = [];
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if (isset($res['purchase_units'][0]['items']) && is_array($res['purchase_units'][0]['items'])) {
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$items = $res['purchase_units'][0]['items'];
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}
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if (!$items && $type === 'PAYMENT.CAPTURE.COMPLETED') {
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$orderId = $res['supplementary_data']['related_ids']['order_id'] ?? null;
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if (!$orderId && isset($res['links']) && is_array($res['links'])) {
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foreach ($res['links'] as $lnk) {
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if (!empty($lnk['href']) && !empty($lnk['rel']) && stripos($lnk['href'], '/v2/checkout/orders/') !== false) {
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$orderId = basename(parse_url($lnk['href'], PHP_URL_PATH));
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break;
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}
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}
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}
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if ($orderId) {
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$ch = curl_init(api_base()."/v2/checkout/orders/".urlencode($orderId));
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_HTTPHEADER => [ 'Authorization: Bearer '.$access_token, 'Content-Type: application/json' ],
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]);
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$orderJson = curl_exec($ch);
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$httpOrder = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($httpOrder === 200) {
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$order = json_decode($orderJson, true);
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if (isset($order['purchase_units'][0]['items']) && is_array($order['purchase_units'][0]['items'])) {
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$items = $order['purchase_units'][0]['items'];
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}
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if (!$invoice) { $invoice = $order['purchase_units'][0]['invoice_id'] ?? $invoice; }
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if (!$custom) { $custom = $order['purchase_units'][0]['custom_id'] ?? $custom; }
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} else {
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if (function_exists('site_log_warn')) site_log_warn('order_fetch_fail', ['orderId'=>$orderId,'http'=>$httpOrder]);
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else log_line("ORDER_FETCH_FAIL id=$orderId http=$httpOrder");
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}
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}
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}
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$status = 'IGNORED';
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if (in_array($type, ['PAYMENT.CAPTURE.COMPLETED','PAYMENT.SALE.COMPLETED'], true)) {
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$record = [
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'event_type' => $type,
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'status' => 'PAID',
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'amount' => $amount,
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'currency' => $currency,
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'payer' => $payer,
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'invoice' => $invoice,
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'custom' => $custom,
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'resource_id' => $res['id'] ?? null,
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'items' => $items,
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'ts' => date('c'),
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];
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$name = $invoice ?: 'NO-INVOICE-'.bin2hex(random_bytes(4));
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@file_put_contents($config['data_dir']."/".$name.".json", json_encode($record, JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES));
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$status = 'WROTE_FILE';
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// Attempt to mark order paid in DB
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require_once(__DIR__ . '/includes/payment_processor.php');
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try {
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process_payment_record($record);
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} catch (Exception $e) {
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if (function_exists('site_log_error')) site_log_error('process_payment_fail',['err'=>$e->getMessage()]);
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else log_line('PROC_FAIL '.$e->getMessage());
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}
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}
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if (function_exists('site_log_info')) site_log_info('webhook_event',['type'=>$type,'invoice'=>($invoice ?: 'none'),'items_count'=>count($items),'status'=>$status]);
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else log_line("EVENT $type invoice=".($invoice ?: 'none')." items_count=".count($items)." status=$status");
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?>
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