2023-07-24 09:22:06 +00:00
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package logic
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import (
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2023-07-27 08:48:43 +00:00
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"crypto/rand"
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"encoding/base64"
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2023-07-24 09:22:06 +00:00
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"fmt"
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"fusenapi/utils/auth"
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"fusenapi/utils/basic"
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"io"
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"log"
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"net/http"
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"time"
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"context"
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"fusenapi/server/auth/internal/svc"
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"fusenapi/server/auth/internal/types"
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"github.com/474420502/requests"
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"github.com/google/uuid"
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"github.com/zeromicro/go-zero/core/logx"
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"github.com/zeromicro/go-zero/rest/httpx"
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"golang.org/x/oauth2"
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"golang.org/x/oauth2/google"
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"gorm.io/gorm"
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)
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type UserGoogleLoginLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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token string // 登录 token
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isRegistered bool // 是否注册
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registerToken string // 注册邮箱的token
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registerInfo *auth.RegisterToken
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}
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func NewUserGoogleLoginLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UserGoogleLoginLogic {
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return &UserGoogleLoginLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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// 处理进入前逻辑w,r
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// func (l *UserGoogleLoginLogic) BeforeLogic(w http.ResponseWriter, r *http.Request) {
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// }
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func (l *UserGoogleLoginLogic) UserGoogleLogin(req *types.RequestGoogleLogin, userinfo *auth.UserInfo) (resp *basic.Response) {
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// 返回值必须调用Set重新返回, resp可以空指针调用 resp.SetStatus(basic.CodeOK, data)
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// userinfo 传入值时, 一定不为null
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var googleOauthConfig = &oauth2.Config{
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RedirectURL: fmt.Sprintf("http://%s/api/user/oauth2/login/google", l.svcCtx.Config.MainAddress),
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ClientID: l.svcCtx.Config.OAuth.Google.Appid,
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ClientSecret: l.svcCtx.Config.OAuth.Google.Secret,
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Scopes: []string{"https://www.googleapis.com/auth/userinfo.email", "https://www.googleapis.com/auth/userinfo.profile"},
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Endpoint: google.Endpoint,
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}
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2023-08-24 03:47:22 +00:00
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token, err := googleOauthConfig.Exchange(l.ctx, req.Code)
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if err != nil {
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logx.Error(err)
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resp.SetStatus(basic.CodeApiErr)
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}
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ses := requests.NewSession()
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r, err := ses.Get("https://www.googleapis.com/oauth2/v2/userinfo?access_token=" + token.AccessToken).Execute()
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if err != nil {
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logx.Error(err)
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return resp.SetStatus(basic.CodeOAuthGoogleApiErr)
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}
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log.Println(r.Json())
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googleId := r.Json().Get("id").Int()
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user, err := l.svcCtx.AllModels.FsUser.FindUserByGoogleId(context.TODO(), googleId)
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if err != nil {
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if err != gorm.ErrRecordNotFound {
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logx.Error(err)
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return resp.SetStatus(basic.CodeDbSqlErr)
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}
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nonce := make([]byte, 16)
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if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
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logx.Error(err)
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return resp.SetStatus(basic.CodeOK)
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}
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l.registerInfo = &auth.RegisterToken{
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Password: base64.RawURLEncoding.EncodeToString(nonce),
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Platform: "google",
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OperateType: auth.OpTypeRegister,
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TraceId: uuid.NewString(),
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CreateAt: time.Now(),
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Extend: map[string]interface{}{
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"google_id": googleId,
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},
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}
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l.isRegistered = false
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token, err := l.svcCtx.OAuthTokenManger.Encrypt(l.registerInfo)
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if err != nil {
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logx.Error(err)
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return resp.SetStatus(basic.CodeOAuthRegisterTokenErr)
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}
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l.registerToken = token
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return resp.SetStatus(basic.CodeOK)
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}
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l.isRegistered = true
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// 如果密码匹配，则生成 JWT Token。
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jwtToken, err := auth.GenerateJwtTokenUint64(auth.StringToHash(*user.PasswordHash), l.svcCtx.Config.Auth.AccessExpire, time.Now().UTC().Unix(), user.Id, 0)
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// 如果生成 JWT Token 失败，则抛出错误并返回未认证的状态码。
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if err != nil {
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logx.Error(err)
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return resp.SetStatus(basic.CodeServiceErr)
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}
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l.token = jwtToken
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return resp.SetStatus(basic.CodeOK)
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}
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2023-07-26 16:03:38 +00:00
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// 处理逻辑后 w,r 如:重定向, resp 必须重新处理
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func (l *UserGoogleLoginLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
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if resp.Code == 200 {
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rurl := fmt.Sprintf(
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l.svcCtx.Config.MainAddress+"/oauth?token=%s&is_registered=%t®ister_token=%s",
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l.token,
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l.isRegistered,
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l.registerToken,
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)
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html := fmt.Sprintf(`
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<!DOCTYPE html>
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<html>
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<head>
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<title>Redirect</title>
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<script type="text/javascript">
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window.onload = function() {
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window.location = "%s";
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}
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</script>
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</head>
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<body>
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</body>
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</html>
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`, rurl)
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fmt.Fprintln(w, html)
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} else {
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httpx.OkJson(w, resp)
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}
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}
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