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package wechat_auth
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"github.com/coze-dev/coze-go"
)
func newSys(options Options) (sys *WeChat, err error) {
sys = &WeChat{
options: options,
}
return
}
type WeChat struct {
options Options
api coze.CozeAPI
}
func (this *WeChat) Auth(ctx context.Context, code string) (info *WeChatUserInfoResponse, err error) {
// 调用微信 API 获取 Access Token
url := fmt.Sprintf(
"https://api.weixin.qq.com/sns/oauth2/access_token?appid=%s&secret=%s&code=%s&grant_type=authorization_code",
this.options.AppID, this.options.AppSecret, code,
)
resp, err := http.Get(url)
if err != nil {
return nil, fmt.Errorf("failed to call WeChat API: %v", err)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("failed to read response body: %v", err)
}
// 解析微信的响应
var tokenResponse WeChatTokenResponse
if err := json.Unmarshal(body, &tokenResponse); err != nil {
return nil, fmt.Errorf("failed to parse WeChat response: %v", err)
}
// 检查微信错误码
if tokenResponse.ErrCode != 0 {
return nil, fmt.Errorf("微信错误: %d - %s", tokenResponse.ErrCode, tokenResponse.ErrMsg)
}
// 调用微信 API 获取用户信息
url = fmt.Sprintf(
"https://api.weixin.qq.com/sns/userinfo?access_token=%s&openid=%s",
tokenResponse.AccessToken, tokenResponse.OpenID,
)
resp, err = http.Get(url)
if err != nil {
return nil, fmt.Errorf("failed to call WeChat API: %v", err)
}
defer resp.Body.Close()
body, err = ioutil.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("failed to read response body: %v", err)
}
// 解析微信的响应
var userInfo WeChatUserInfoResponse
if err := json.Unmarshal(body, &userInfo); err != nil {
return nil, fmt.Errorf("failed to parse WeChat response: %v", err)
}
if userInfo.ErrCode != 0 {
return nil, fmt.Errorf("微信错误: %d - %s", userInfo.ErrCode, userInfo.ErrMsg)
}
return &userInfo, nil
}