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googleauth.go
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googleauth.go
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package auth
import (
"net/http"
"strings"
"time"
"github.com/cam-inc/viron/packages/golang/config"
"github.com/cam-inc/viron/packages/golang/constant"
"github.com/cam-inc/viron/packages/golang/domains"
"github.com/cam-inc/viron/packages/golang/errors"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
oauthv2 "google.golang.org/api/oauth2/v2"
)
var (
googleOAuth2Config *config.GoogleOAuth2
)
func NewGoogleOAuth2(googleOAuth2 *config.GoogleOAuth2) {
googleOAuth2Config = googleOAuth2
}
func getGoogleOAuth2Config(redirectUrl string, googleOAuth2 *config.GoogleOAuth2) *oauth2.Config {
scope := constant.GOOGLE_OAUTH2_DEFAULT_SCOPES
if len(googleOAuth2.AdditionalScope) > 0 {
scope = append(constant.GOOGLE_OAUTH2_DEFAULT_SCOPES, googleOAuth2.AdditionalScope...)
}
cfn := &oauth2.Config{
ClientID: googleOAuth2.ClientID,
ClientSecret: googleOAuth2.ClientSecret,
Endpoint: google.Endpoint,
Scopes: scope,
RedirectURL: redirectUrl,
}
return cfn
}
func GetGoogleOAuth2AuthorizationUrl(redirectUrl string, state string) (string, *errors.VironError) {
cfn := getGoogleOAuth2Config(redirectUrl, googleOAuth2Config)
url := cfn.AuthCodeURL(state)
return url, nil
}
func SigninGoogleOAuth2(code string, redirectUrl string, r *http.Request) (string, *errors.VironError) {
cfn := getGoogleOAuth2Config(redirectUrl, googleOAuth2Config)
oauth2Token, err := cfn.Exchange(oauth2.NoContext, code)
if err != nil {
log.Errorf("Exchange failed -> %v", err)
return "", errors.SigninFailed
}
ctx := r.Context()
oauth2Service, err := oauthv2.New(cfn.Client(ctx, oauth2Token))
if err != nil {
log.Errorf("oauthv2.New failed -> %v", err)
return "", errors.SigninFailed
}
tokenInfo, err := oauth2Service.Tokeninfo().AccessToken(oauth2Token.AccessToken).Context(ctx).Do()
if err != nil || tokenInfo == nil || tokenInfo.Email == "" {
log.Errorf("oauth2Service failed err:%v, tokenInfo:%v ", err, tokenInfo)
return "", errors.SigninFailed
}
userHostedDomains := googleOAuth2Config.UserHostedDomains
emailDomain := tokenInfo.Email[strings.Index(tokenInfo.Email, "@")+1:]
domainCheck := false
for _, v := range userHostedDomains {
if v == emailDomain {
domainCheck = true
break
}
}
if !domainCheck {
log.Error("domainCheck is false.")
return "", errors.SigninFailed
}
user := domains.FindByEmail(ctx, tokenInfo.Email)
if user == nil {
expiry := uint64(oauth2Token.Expiry.UnixNano() / int64(time.Millisecond))
payload := &domains.AdminUser{
Email: tokenInfo.Email,
GoogleOAuth2TokenType: &oauth2Token.TokenType,
GoogleOAuth2IdToken: nil,
GoogleOAuth2AccessToken: &oauth2Token.AccessToken,
GoogleOAuth2RefreshToken: &oauth2Token.RefreshToken,
GoogleOAuth2ExpiryDate: &expiry,
AuthType: constant.AUTH_TYPE_GOOGLE,
}
var err error
user, err = createFirstAdminUser(ctx, payload, payload.AuthType)
if err != nil {
log.Errorf("create first admin user failed err:%v, user:%v", err, user)
return "", errors.SigninFailed
}
if user == nil {
if user, err = createViewer(ctx, payload, payload.AuthType); err != nil {
log.Errorf("create admin user(viewer) failed err:%v, user:%v", err, user)
}
}
}
if user.AuthType != constant.AUTH_TYPE_GOOGLE {
log.Error("user authType is not google.")
return "", errors.SigninFailed
}
token, err := Sign(r, user.ID)
if err != nil {
log.Error("SigninGoogleOAuth2 sign failed %#v \n", err)
return "", errors.SigninFailed
}
return token, nil
}