vikunja-api/pkg/routes/caldav/auth.go

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// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-2021 Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public Licensee as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public Licensee for more details.
//
// You should have received a copy of the GNU Affero General Public Licensee
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package caldav
import (
"errors"
"code.vikunja.io/api/pkg/db"
"code.vikunja.io/api/pkg/log"
"code.vikunja.io/api/pkg/user"
"github.com/labstack/echo/v4"
"golang.org/x/crypto/bcrypt"
)
func BasicAuth(username, password string, c echo.Context) (bool, error) {
s := db.NewSession()
defer s.Close()
credentials := &user.Login{
Username: username,
Password: password,
}
u, err := user.CheckUserCredentials(s, credentials)
if err != nil && !user.IsErrWrongUsernameOrPassword(err) && !user.IsErrAccountIsNotLocal(err) {
log.Errorf("Error during basic auth for caldav: %v", err)
return false, nil
}
if err == nil {
c.Set("userBasicAuth", u)
return true, nil
}
tokens, err := user.GetCaldavTokens(u)
if err != nil {
log.Errorf("Error while getting tokens for caldav auth: %v", err)
return false, nil
}
// Looping over all tokens until we find one that matches
for _, token := range tokens {
err = bcrypt.CompareHashAndPassword([]byte(token.Token), []byte(password))
if err != nil {
if errors.Is(err, bcrypt.ErrMismatchedHashAndPassword) {
continue
}
log.Errorf("Error while verifying tokens for caldav auth: %v", err)
return false, nil
}
c.Set("userBasicAuth", u)
return true, nil
}
return false, nil
}