73 lines
2.4 KiB
PHP
73 lines
2.4 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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* 微信公众号服务（网页授权 code 换 openid，公众号 JSAPI 支付前置）
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*
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* H5 页面在微信内置浏览器打开 → 网页授权（snsapi_base）回调带回 code
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* → 本服务以 code 换付款人 openid（公众号维度，与小程序 openid 不同，不可混用）
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*/
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class WechatMpService
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{
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/**
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* 网页授权 code 换 openid（sns/oauth2/access_token）
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*
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* @return string 用户公众号维度 openid
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* @throws RepositoryException 未配置公众号或授权失败
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*/
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public function code2openid(string $code): string
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{
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$appid = $this->appid();
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$secret = $this->config('mp_secret');
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if ($appid === '' || $secret === '') {
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throw new RepositoryException('微信公众号未配置 AppID/Secret，请联系管理员');
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}
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$result = Http::timeout(10)->withOptions([
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'verify' => false, // 禁用 SSL 证书验证
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])->get('https://api.weixin.qq.com/sns/oauth2/access_token', [
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'appid' => $appid,
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'secret' => $secret,
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'code' => $code,
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'grant_type' => 'authorization_code',
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])->json();
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$openid = is_array($result) ? (string) ($result['openid'] ?? '') : '';
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if ($openid === '') {
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Log::warning('微信网页授权失败', ['response' => $result]);
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throw new RepositoryException('微信网页授权失败：' . ($result['errmsg'] ?? '请重新授权'));
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}
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return $openid;
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}
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/**
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* 公众号 AppID（公众号 JSAPI 下单 appid、H5 拼网页授权链接使用）
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*/
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public function appid(): string
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{
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return $this->config('mp_appid');
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}
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/**
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* 读取应用配置：后台站点配置（微信应用配置分组）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('wechat.' . $key, '');
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if ($value === null || $value === '') {
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$value = match ($key) {
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'mp_appid' => config('services.wechat.mp.appid', ''),
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'mp_secret' => config('services.wechat.mp.secret', ''),
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default => '',
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};
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}
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return trim((string) $value);
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}
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}
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