160 lines
5.9 KiB
PHP
160 lines
5.9 KiB
PHP
<?php
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namespace App\Services;
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use App\Exceptions\RepositoryException;
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use Illuminate\Support\Facades\Http;
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use Illuminate\Support\Facades\Log;
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/**
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* 旺铺支付网关服务（统一下单B-JSAPI / 交易查询 / 后台通知验签）
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*
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* 加签规则（请求与回调一致）：
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* 除 sign 外所有非空参数按参数名 ASCII 码升序排列，以 key=value 形式用 & 拼接成 Str，
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* 在 Str 后拼接 &key={SignKey} 得到 SignStr，对其做 MD5（utf-8）并转大写即为签名值。
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*
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* 配置优先级：后台「系统设置 → 支付配置」(site_config pay.wangpu_*) > config/services.php（env）
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*/
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class WangpuPayService
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{
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/** 网关应答成功码 */
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public const string CODE_SUCCESS = '0000';
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/** 通知应答码：成功（网关收到 {"code":"00"} 才认为通知成功） */
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public const string NOTIFY_ACK_OK = '00';
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/** 订单状态：支付成功（交易查询 / 后台通知的 order_status） */
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public const int ORDER_STATUS_PAID = 1;
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/**
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* 统一下单B-JSAPI（微信公众号/小程序、支付宝服务窗/生活号、银联二维码）
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*
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* @param array<string, mixed> $params 业务参数（mer_order_id/order_amt/open_id/notifyurl 等）
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* @return array<string, mixed> 网关 data 节点（含 order_id/trade_no/调起支付参数）
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* @throws RepositoryException 网关应答失败
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*/
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public function createOrder(array $params): array
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{
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return $this->request('/industrial/payment/order', array_merge([
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'mer_code' => $this->config('mer_code'),
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'term_code' => $this->config('term_code'),
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'payway_code' => $this->config('payway_code'),
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], $params));
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}
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/**
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* 交易查询（单笔订单支付状态同步）
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*
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* @param string $merOrderId 商户唯一订单号（本系统 payment_no）
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* @param string $orderId 旺铺订单号（可选，与 mer_order_id 同时上送时网关以 order_id 为准）
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* @return array<string, mixed> 网关 data 节点
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* @throws RepositoryException 网关应答失败
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*/
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public function queryOrder(string $merOrderId, string $orderId = ''): array
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{
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$params = ['mer_order_id' => $merOrderId];
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if ($orderId !== '') {
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$params['order_id'] = $orderId;
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}
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return $this->request('/industrial/query/order', $params);
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}
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/**
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* 校验后台通知签名（支付成功/退款成功通知通用）
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*
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* @param array<string, mixed> $params 通知报文全量参数（含 sign）
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*/
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public function verifyNotifySign(array $params): bool
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{
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$sign = (string) ($params['sign'] ?? '');
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if ($sign === '') {
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return false;
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}
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return hash_equals($this->sign($params), strtoupper($sign));
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}
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/**
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* MD5 加签：非空参数（sign 除外）按参数名 ASCII 升序 key=value 以 & 拼接，
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* 末尾拼接 &key={SignKey} 后 MD5 转大写
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*
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* @param array<string, mixed> $params
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*/
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public function sign(array $params): string
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{
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unset($params['sign']);
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$pairs = [];
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foreach ($params as $key => $value) {
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if ($value === null || $value === '') {
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continue;
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}
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if (is_array($value) || is_object($value)) {
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$value = json_encode($value, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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}
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$pairs[(string) $key] = (string) $key . '=' . (string) $value;
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}
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ksort($pairs, SORT_STRING);
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$signStr = implode('&', $pairs) . '&key=' . $this->config('sign_key');
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return strtoupper(md5($signStr));
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}
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/**
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* 支付结果后台通知地址（统一下单时上送的 notifyurl）
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*/
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public function notifyUrl(): string
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{
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return rtrim((string) config('app.url'), '/') . '/mini/payment/notify';
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}
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/**
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* 网关 POST 请求（表单方式）：公共参数 + 加签 → 发送 → 校验应答码
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*
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* @param array<string, mixed> $params 接口业务参数
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* @return array<string, mixed> 应答 data 节点
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* @throws RepositoryException 通讯失败或应答码非成功
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*/
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protected function request(string $path, array $params): array
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{
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$baseUrl = rtrim($this->config('base_url'), '/');
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if ($baseUrl === '') {
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throw new RepositoryException('旺铺支付未配置网关地址，请联系管理员');
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}
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$body = array_merge([
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'organiz_no' => $this->config('organiz_no'),
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'mer_no' => $this->config('mer_no'),
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], $params);
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// 空值参数不下送（与网关签名口径一致）
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$body = array_filter($body, static fn ($value): bool => $value !== null && $value !== '');
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$body['sign'] = $this->sign($body);
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$response = Http::asForm()->timeout(15)->post($baseUrl . $path, $body);
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$result = $response->json();
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if (! is_array($result)) {
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Log::error('旺铺网关应答异常', ['path' => $path, 'status' => $response->status(), 'body' => $response->body()]);
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throw new RepositoryException('支付网关通讯异常，请稍后重试');
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}
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if (($result['code'] ?? '') !== self::CODE_SUCCESS) {
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Log::warning('旺铺网关应答失败', ['path' => $path, 'response' => $result]);
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throw new RepositoryException('支付网关下单失败：' . ($result['msg'] ?? '未知错误'));
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}
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$data = $result['data'] ?? [];
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return is_array($data) ? $data : [];
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}
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/**
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* 读取网关配置：后台站点配置优先，为空回退 config/services.php（env）
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*/
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protected function config(string $key): string
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{
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$value = site_config('pay.wangpu_' . $key, '');
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if ($value === null || $value === '') {
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$value = config('services.wangpu.' . $key, '');
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}
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return trim((string) $value);
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}
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}
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