313 lines
12 KiB
PHP
313 lines
12 KiB
PHP
<?php
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namespace app\common\service;
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use EasyWeChat\MiniApp\Application as MiniAppApplication;
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use EasyWeChat\Pay\Application as PayApplication;
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use EasyWeChat\Pay\Message as PayMessage;
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use think\Log;
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/**
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* 微信服务(EasyWeChat 6.x)
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* 文档: https://easywechat.com/6.x/
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* - 小程序: MiniApp\Application
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* - 支付(含回调验签): Pay\Application (微信支付 v3)
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*/
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class EasyWeChatService
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{
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public $config;
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/** @var MiniAppApplication 小程序实例 */
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public $app;
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/** @var PayApplication 微信支付 v3 实例 */
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public $payApp;
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public function __construct()
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{
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$this->config = config('common.wechat');
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// 小程序
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$this->app = new MiniAppApplication([
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'app_id' => $this->config['app_id'],
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'secret' => $this->config['secret'],
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'http' => ['throw' => false, 'timeout' => 10.0],
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]);
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// 微信支付 v3
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$this->payApp = new PayApplication([
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'mch_id' => $this->config['mch_id'],
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'secret_key' => $this->config['secret_key'], // APIv3 密钥
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'v2_secret_key' => $this->config['v2_secret_key'], // 旧 v2 密钥(兼容 v2 模式回调)
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'private_key' => $this->config['private_key'], // 商户证书私钥
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'certificate' => $this->config['certificate'], // 商户API证书
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'platform_certs' => $this->config['platform_certs'], // 微信支付公钥/平台证书
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'http' => ['throw' => false, 'timeout' => 10.0],
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]);
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}
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/**
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* 小程序登录(code2session)
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* @param string $code wx.login 获取的 code
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* @return array {openid, session_key, unionid?}
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*/
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public function login($code)
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{
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$res = $this->app->getUtils()->codeToSession($code);
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Log::info('login-res' . json_encode([$res], JSON_UNESCAPED_UNICODE));
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return $res;
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}
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/**
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* 解密开放数据(手机号等)
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* @param $sessionKey code2session 返回的 session_key
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* @param $iv
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* @param $encryptedData
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* @return array
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*/
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public function decryData($sessionKey, $iv, $encryptedData)
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{
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return $this->app->getUtils()->decryptSession($sessionKey, $iv, $encryptedData);
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}
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/**
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* 统一下单(小程序 JSAPI 支付, v3)
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* @param string $body 商品描述
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* @param string $out_trade_no 商户订单号
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* @param float $total_fee 金额(单位:元)
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* @param string $openid 支付用户 openid
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* @param string $notify_url 支付结果通知地址,留空使用配置默认
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* @return array 含 prepay_id;失败时含 message 等错误信息
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*/
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public function unify($body, $out_trade_no, $total_fee, $openid, $notify_url = '')
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{
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$params = [
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'appid' => $this->config['app_id'],
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'mchid' => (string)$this->payApp->getMerchant()->getMerchantId(),
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'description' => $body,
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'out_trade_no' => $out_trade_no,
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'notify_url' => $notify_url ?: $this->config['notify_url'],
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'amount' => ['total' => (int)round($total_fee * 100), 'currency' => 'CNY'], // 转为分
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'payer' => ['openid' => $openid],
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];
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Log::info('unify-params' . json_encode($params, JSON_UNESCAPED_UNICODE));
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$response = $this->payApp->getClient()->postJson('v3/pay/transactions/jsapi', $params);
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$result = $response->toArray(false);
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Log::info('unify-res' . json_encode($result, JSON_UNESCAPED_UNICODE));
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return $result;
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}
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/**
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* 小程序调起支付参数(wx.requestPayment)
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* @param string $prepayId
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* @return array {timeStamp, nonceStr, package, signType, paySign}
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*/
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public function sdkConfig($prepayId)
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{
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$config = $this->payApp->getUtils()->buildMiniAppConfig($prepayId, $this->config['app_id']);
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Log::info('buildMiniAppConfig-res' . json_encode($config, JSON_UNESCAPED_UNICODE));
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return $config;
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}
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/**
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* 发送小程序订阅消息
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* 只要走了订阅消息，就同步发送一条站内消息（失败不影响订阅消息主流程）
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* @param $user_id
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* @param $template_id
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* @param array $msgData
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*/
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public function sendMsg($user_id, $template_id, array $msgData = [])
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{
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$data = SubscribeMessageService::packMsg($user_id, $template_id, $msgData);
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$response = $this->app->getClient()->postJson('/cgi-bin/message/subscribe/send', $data);
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$res = $response->toArray(false);
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Log::info('发送订阅消息-res' . json_encode(['data' => $data, 'res' => $res], JSON_UNESCAPED_UNICODE));
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//同步写站内消息（extra_json.page 直接复用订阅消息的跳转页面）
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try {
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MessageService::createBySubscribe($user_id, $template_id, $msgData, $data['page'] ?? '');
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} catch (\Exception $e) {
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Log::error('订阅消息同步站内消息失败:' . json_encode([
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'user_id' => $user_id,
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'template_id' => $template_id,
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'error' => $e->getMessage(),
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], JSON_UNESCAPED_UNICODE));
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}
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}
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/**
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* 商家转账到零钱(v3, 原 v2 企业付款已停用)
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* 需在商户平台开通「商家转账」产品权限
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* @param string $order_sn 提现单号(字母或数字)
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* @param string $openid
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* @param string $name 收款用户姓名(商家转账不校验时可留空)
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* @param float $amount 金额(单位:元)
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* @param string $desc
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* @return array {out_batch_no, batch_id, create_time};失败时含 message
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*/
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public function mchPay($order_sn, $openid, $name, $amount, $desc = '用户提现')
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{
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$params = [
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'appid' => $this->config['app_id'],
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'out_batch_no' => $order_sn,
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'batch_name' => '用户提现',
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'batch_remark' => $desc,
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'total_amount' => (int)round($amount * 100), // 转为分
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'total_num' => 1,
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'transfer_detail_list' => [
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[
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'out_detail_no' => $order_sn . 'D1', // 明细单号(字母数字,保持唯一)
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'transfer_amount' => (int)round($amount * 100),
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'transfer_remark' => $desc,
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'openid' => $openid,
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],
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],
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];
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Log::info('商家转账-params' . json_encode($params, JSON_UNESCAPED_UNICODE));
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$response = $this->payApp->getClient()->postJson('v3/transfer/batches', $params);
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$res = $response->toArray(false);
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Log::info('商家转账-res' . json_encode($res, JSON_UNESCAPED_UNICODE));
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return $res;
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}
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/**
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* 查询商家转账批次状态
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* @param string $apply_sn 商家转账单号(out_batch_no)
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* @return array 转账批次状态及明细
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*/
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public function queryBalance($apply_sn)
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{
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$response = $this->payApp->getClient()->get("v3/transfer/batches/out-batch-no/{$apply_sn}", [
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'query' => [
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'need_query_detail' => 'true',
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'offset' => 0,
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'limit' => 20,
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'detail_status' => 'ALL',
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],
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]);
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$res = $response->toArray(false);
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Log::info('商家转账查询-res' . json_encode(['apply_sn' => $apply_sn, 'res' => $res], JSON_UNESCAPED_UNICODE));
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return $res;
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}
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/**
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* 微信支付退款(v3)
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* @param string $order_sn 商户订单号
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* @param string $refund_no 商户退款单号
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* @param float $actual_amount 原订单金额(单位:元)
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* @param float $refund_amount 退款金额(单位:元)
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* @param string $desc 退款原因
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* @return array
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*/
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public function refund($order_sn, $refund_no, $actual_amount, $refund_amount, $desc = '出票失败退款')
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{
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$params = [
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'out_trade_no' => $order_sn,
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'out_refund_no' => $refund_no,
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'reason' => $desc,
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'amount' => [
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'refund' => (int)bcmul($refund_amount, 100), // 转为分
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'total' => (int)bcmul($actual_amount, 100),
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'currency' => 'CNY',
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],
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];
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Log::info('微信订单退款-params' . json_encode($params, JSON_UNESCAPED_UNICODE));
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$response = $this->payApp->getClient()->postJson('v3/refund/domestic/refunds', $params);
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$res = $response->toArray(false);
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Log::info('微信订单退款-res' . json_encode(['param' => func_get_args(), 'res' => $res], JSON_UNESCAPED_UNICODE));
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return $res;
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}
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/**
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* 查询退款(v3)
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* @param string $refund_no 商户退款单号
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* @return array
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*/
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public function refundQuery($refund_no)
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{
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$response = $this->payApp->getClient()->get("v3/refund/domestic/refunds/{$refund_no}");
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$res = $response->toArray(false);
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Log::info('微信订单退款查询-res' . json_encode(['param' => func_get_args(), 'res' => $res], JSON_UNESCAPED_UNICODE));
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return $res;
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}
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/**
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* 处理微信支付 v3 回调(验签+解密),返回 PSR-7 响应
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* @param \Closure $paidHandler function(PayMessage $message){ 业务处理;异常时抛出则返回失败 }
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* @return \Psr\Http\Message\ResponseInterface
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*/
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public function handlePayNotify(\Closure $paidHandler)
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{
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$request = $this->payApp->getRequest();
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$traceId = date('YmdHis') . substr(md5(uniqid('', true)), 0, 6);
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// 【日志1】回调原始报文：确认微信有没有真的打过来、打到哪个地址
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Log::info('微信支付回调[收到请求] trace=' . $traceId . ' ' . json_encode([
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'method' => $request->getMethod(),
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'uri' => (string)$request->getUri(),
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'headers' => self::getNotifyHeaders($request),
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'body' => (string)$request->getBody(),
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], JSON_UNESCAPED_UNICODE));
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$server = $this->payApp->getServer();
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$server->handlePaid(function (PayMessage $message, \Closure $next) use ($paidHandler, $traceId) {
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// 【日志2】解密后的业务数据(含 out_trade_no / trade_state / amount)
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Log::info('微信支付回调[解密数据] trace=' . $traceId . ' ' . json_encode($message->toArray(), JSON_UNESCAPED_UNICODE));
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// 回调签名验证(官方推荐,验签失败抛异常 -> serve 返回失败,微信将重试)
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try {
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$this->payApp->getValidator()->validate($this->payApp->getRequest());
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Log::info('微信支付回调[验签通过] trace=' . $traceId);
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} catch (\Throwable $e) {
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Log::error('微信支付回调[验签失败] trace=' . $traceId . ' msg=' . $e->getMessage());
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throw $e;
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}
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try {
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$paidHandler($message, $traceId);
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} catch (\Throwable $e) {
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Log::error('微信支付回调[业务处理异常] trace=' . $traceId . ' msg=' . $e->getMessage()
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. ' file=' . $e->getFile() . ':' . $e->getLine());
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throw $e;
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}
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Log::info('微信支付回调[业务处理完成] trace=' . $traceId);
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return $next($message);
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});
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$response = $server->serve();
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// 注意:先转字符串(内部会 seek(0))并 rewind,保证控制器后续仍能读取 body 回给微信
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$responseBody = (string)$response->getBody();
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$response->getBody()->rewind();
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// 【日志3】应答给微信的结果:status=200 且 code=SUCCESS 才算回调成功
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Log::info('微信支付回调[响应微信] trace=' . $traceId . ' status=' . $response->getStatusCode() . ' body=' . $responseBody);
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return $response;
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}
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/**
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* 提取回调请求中与验签相关的请求头(便于排查签名/证书问题)
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* @param \Psr\Http\Message\ServerRequestInterface $request
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* @return array
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*/
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private static function getNotifyHeaders($request): array
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{
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$headers = [];
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foreach ($request->getHeaders() as $name => $values) {
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if (stripos($name, 'wechatpay') !== false || in_array(strtolower($name), ['content-type', 'user-agent'])) {
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$headers[$name] = implode(', ', $values);
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}
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}
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return $headers;
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}
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}
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