100 lines
3.2 KiB
PHP
100 lines
3.2 KiB
PHP
<?php
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namespace App\Services;
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use App\Exceptions\RepositoryException;
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use EasyWeChat\Kernel\Exceptions\HttpException;
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use EasyWeChat\MiniApp\Application;
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use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
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use Symfony\Contracts\HttpClient\HttpClientInterface;
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/**
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* 微信小程序服务（基于 EasyWeChat 6.x）
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*
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* 封装 code2Session / 手机号解密；配置读取 site_config('wechatMini')
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* （后台「小程序设置」面板维护，存 sys_site_config 表）。
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*
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* 测试策略：通过 setHttpClient() 注入 Symfony MockHttpClient 拦截微信 HTTP 调用。
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*/
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class WechatService
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{
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private ?Application $app = null;
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private ?HttpClientInterface $httpClient = null;
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/**
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* 注入自定义 HttpClient（测试注入 MockHttpClient；注入后强制重建 Application）
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*/
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public function setHttpClient(HttpClientInterface $httpClient): void
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{
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$this->httpClient = $httpClient;
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$this->app = null;
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}
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/**
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* code2Session：小程序 wx.login 的 code 换取 openid / session_key
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*
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* @param string $code wx.login 返回的临时登录凭证
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* @return array{openid: string, session_key: string, unionid?: string}
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*/
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public function code2Session(string $code): array
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{
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try {
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/** @var array{openid: string, session_key: string, unionid?: string} $session */
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$session = $this->app()->getUtils()->codeToSession($code);
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} catch (HttpException|TransportExceptionInterface $e) {
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throw new RepositoryException('微信登录失败：' . $e->getMessage());
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}
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return $session;
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}
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/**
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* 获取手机号：wx.getPhoneNumber 的 phoneCode 换取手机号
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*
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* @param string $phoneCode 手机号授权事件返回的动态令牌
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* @return string 用户手机号
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*/
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public function getPhone(string $phoneCode): string
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{
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try {
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$result = $this->app()->getUtils()->getPhoneNumber($phoneCode);
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} catch (HttpException|TransportExceptionInterface $e) {
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throw new RepositoryException('获取手机号失败：' . $e->getMessage());
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}
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$phone = (string) ($result['phone_info']['phoneNumber']
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?? $result['phone_info']['purePhoneNumber']
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?? '');
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if ($phone === '') {
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throw new RepositoryException('获取手机号失败：微信未返回有效手机号');
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}
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return $phone;
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}
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/**
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* EasyWeChat 小程序应用实例（懒构建单例）
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*/
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protected function app(): Application
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{
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if ($this->app === null) {
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$config = (array) site_config('wechatMini', []);
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if (empty($config['appid']) || empty($config['secret'])) {
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throw new RepositoryException('微信小程序尚未配置（WECHAT_MINI_APPID / WECHAT_MINI_SECRET）');
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}
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$this->app = new Application([
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'app_id' => (string) $config['appid'],
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'secret' => (string) $config['secret'],
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]);
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if ($this->httpClient !== null) {
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$this->app->setHttpClient($this->httpClient);
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}
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}
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return $this->app;
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}
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}
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