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60 lines
1.5 KiB
60 lines
1.5 KiB
package wechat_auth
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import (
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"context"
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"errors"
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)
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type (
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ISys interface {
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Auth(ctx context.Context, idToken string) (info *WeChatUserInfoResponse, err error)
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}
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WeChatTokenResponse struct {
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AccessToken string `json:"access_token"`
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ExpiresIn int `json:"expires_in"`
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RefreshToken string `json:"refresh_token"`
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OpenID string `json:"openid"`
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Scope string `json:"scope"`
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WeChatError // 内嵌错误结构
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}
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WeChatUserInfoResponse struct {
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OpenID string `json:"openid"`
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Nickname string `json:"nickname"`
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HeadImgURL string `json:"headimgurl"`
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UnionID string `json:"unionid"`
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WeChatError
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}
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WeChatError struct {
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ErrCode int `json:"errcode"`
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ErrMsg string `json:"errmsg"`
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}
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)
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var defsys ISys
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// ErrNotInited 微信登录未初始化。OnInit 失败时调用方可选择降级；此时包级函数返回本错误，而不是 panic。
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var ErrNotInited = errors.New("wechat_auth 未初始化：配置缺失")
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func OnInit(config map[string]interface{}, option ...Option) error {
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sys, err := newSys(newOptions(config, option...))
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if err != nil {
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// 出错时不要给 defsys 赋值，避免「非 nil 接口 + nil 指针」让守卫失效。
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return err
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}
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defsys = sys
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return nil
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}
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func NewSys(option ...Option) (sys ISys, err error) {
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sys, err = newSys(newOptionsByOption(option...))
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return
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}
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func Auth(ctx context.Context, idToken string) (info *WeChatUserInfoResponse, err error) {
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if defsys == nil {
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return nil, ErrNotInited
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}
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return defsys.Auth(ctx, idToken)
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}
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