微信公众号网页授权中转功能
解决网页授权域名个数限制
通过已授权的域名进行中转
thinkphp8代码
route下
// 微信公众号授权中转
Route::get('connect/oauth2/authorize', 'WechatOfficial/GetConnectOauth2Authorize');
// 通过code换取网页授权access_token
Route::get('sns/oauth2/access_token', 'WechatOfficial/GetSnsOauth2AccessToken');
// 拉取用户信息(需scope为 snsapi_userinfo)
Route::get('sns/userinfo', 'WechatOfficial/GetSnsUserinfo');
控制器下
<?php
namespace app\controller;
use app\BaseController;
use think\facade\Request;
use think\facade\Http;
class WechatOfficial extends BaseController
{
public function GetConnectOauth2Authorize()
{
// 获取查询参数
$appid = Request::param('appid','');
$scope = Request::param('scope',"");
$redirect_uri = Request::param('redirect_uri',"");
$code = Request::param('code',"");
// 判断是否有code返回
if (!empty($code)) {
// 判断redirect_uri是否包含查询参数
if (strpos($redirect_uri, '?') !== false) {
return redirect($redirect_uri. '&code=' . $code);
} else {
return redirect($redirect_uri. '?code=' . $code);
}
return;
}
// 构建中间重定向URL
$middleRedirect = urlencode(Request::url(true) . '/connect/oauth2/authorize?redirect_uri=' . urlencode($redirect_uri));
// 构建微信授权URL
$wechatUrl = "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$appid}&redirect_uri={$middleRedirect}&response_type=code&scope={$scope}&connect_redirect=1#wechat_redirect";
// 重定向到微信授权页面
return redirect($wechatUrl);
}
public function GetSnsOauth2AccessToken()
{
$appid = Request::param('appid','');
$secret = Request::param('secret',"");
$code = Request::param('code',"");
$client = new \GuzzleHttp\Client();
$response = $client->request('GET', "https://api.weixin.qq.com/sns/oauth2/access_token?appid={$appid}&secret={$secret}&code={$code}&grant_type=authorization_code", ['verify' => false]);
$respBody=$response->getBody();
return json(json_decode((string)$respBody,true));
}
public function GetSnsUserinfo()
{
$access_token = Request::param('access_token','');
$openid = Request::param('openid',"");
$client = new \GuzzleHttp\Client();
$response = $client->request('GET', "https://api.weixin.qq.com/sns/userinfo?access_token={$access_token}&openid={$openid}&lang=zh_CN", ['verify' => false]);
$respBody=$response->getBody();
return json(json_decode((string)$respBody,true));
}
}
使用上,将原来调用官方域名
open.weixin.qq.com
修改为自己的中转域名,这样可以解决个数限制问题
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