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token.go
51 lines (45 loc) · 1.22 KB
/
token.go
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package services
import (
"context"
"errors"
"github.com/meloie/gonebook/internal/ent"
"github.com/meloie/gonebook/internal/ent/token"
"github.com/meloie/gonebook/pkg/utils"
"net/http"
"strings"
)
const (
TokenLength = 16
)
var UnAuthorizedErr = errors.New("Unauthorized")
func (svc *Service) CreateToken(ctx context.Context, user *ent.User) (*ent.Token, error) {
t, err := svc.Database.Token.Create().SetUserID(user.ID).
SetValue(utils.RandString(TokenLength)).Save(ctx)
return t, err
}
func (svc *Service) GetUserIDByToken(ctx context.Context, tokenValue string) (int, error) {
t, err := svc.Database.Token.Query().Where(token.ValueEQ(tokenValue)).Only(ctx)
if err != nil {
return 0, err
}
id, err := t.QueryUser().OnlyID(ctx)
if err != nil {
return 0, err
}
return id, nil
}
func (svc *Service) CurrentUser(ctx context.Context, r *http.Request) (int, error) {
tokenHeader := r.Header.Get("Authorization")
if tokenHeader == "" {
return 0, UnAuthorizedErr
}
parts := strings.Fields(tokenHeader)
if len(parts) != 2 || strings.ToLower(parts[0]) != "bearer" {
return 0, UnAuthorizedErr
}
id, err := svc.GetUserIDByToken(ctx, parts[1])
if ent.IsNotFound(err) {
return 0, UnAuthorizedErr
}
return id, err
}