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authenticate.go
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authenticate.go
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package oauth
import (
"errors"
"time"
"github.com/RichardKnop/go-oauth2-server/models"
"github.com/RichardKnop/go-oauth2-server/session"
"github.com/jinzhu/gorm"
)
var (
// ErrAccessTokenNotFound ...
ErrAccessTokenNotFound = errors.New("Access token not found")
// ErrAccessTokenExpired ...
ErrAccessTokenExpired = errors.New("Access token expired")
)
// Authenticate checks the access token is valid
func (s *Service) Authenticate(token string) (*models.OauthAccessToken, error) {
// Fetch the access token from the database
accessToken := new(models.OauthAccessToken)
notFound := s.db.Where("token = ?", token).First(accessToken).RecordNotFound()
// Not found
if notFound {
return nil, ErrAccessTokenNotFound
}
// Check the access token hasn't expired
if time.Now().UTC().After(accessToken.ExpiresAt) {
return nil, ErrAccessTokenExpired
}
// Extend refresh token expiration database
query := s.db.Model(new(models.OauthRefreshToken)).Where("client_id = ?", accessToken.ClientID.String)
if accessToken.UserID.Valid {
query = query.Where("user_id = ?", accessToken.UserID.String)
} else {
query = query.Where("user_id IS NULL")
}
increasedExpiresAt := gorm.NowFunc().Add(
time.Duration(s.cnf.Oauth.RefreshTokenLifetime) * time.Second,
)
if err := query.UpdateColumn("expires_at", increasedExpiresAt).Error; err != nil {
return nil, err
}
return accessToken, nil
}
// ClearUserTokens deletes the user's access and refresh tokens associated with this client id
func (s *Service) ClearUserTokens(userSession *session.UserSession) {
// Clear all refresh tokens with user_id and client_id
refreshToken := new(models.OauthRefreshToken)
found := !models.OauthRefreshTokenPreload(s.db).Where("token = ?", userSession.RefreshToken).First(refreshToken).RecordNotFound()
if found {
s.db.Unscoped().Where("client_id = ? AND user_id = ?", refreshToken.ClientID, refreshToken.UserID).Delete(models.OauthRefreshToken{})
}
// Clear all access tokens with user_id and client_id
accessToken := new(models.OauthAccessToken)
found = !models.OauthAccessTokenPreload(s.db).Where("token = ?", userSession.AccessToken).First(accessToken).RecordNotFound()
if found {
s.db.Unscoped().Where("client_id = ? AND user_id = ?", accessToken.ClientID, accessToken.UserID).Delete(models.OauthAccessToken{})
}
}