mirror of
https://github.com/dnote/dnote
synced 2026-03-16 23:45:52 +01:00
70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
/* Copyright (C) 2019, 2020, 2021 Monomax Software Pty Ltd
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*
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* This file is part of Dnote.
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*
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* Dnote is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dnote is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Dnote. If not, see <https://www.gnu.org/licenses/>.
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*/
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package mailer
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import (
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"crypto/rand"
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"encoding/base64"
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"github.com/dnote/dnote/pkg/server/database"
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"github.com/jinzhu/gorm"
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"github.com/pkg/errors"
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)
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func generateRandomToken(bits int) (string, error) {
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b := make([]byte, bits)
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_, err := rand.Read(b)
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if err != nil {
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return "", errors.Wrap(err, "generating random bytes")
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}
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return base64.URLEncoding.EncodeToString(b), nil
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}
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// GetToken returns an token of the given kind for the user
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// by first looking up any unused record and creating one if none exists.
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func GetToken(db *gorm.DB, userID int, kind string) (database.Token, error) {
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var tok database.Token
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conn := db.
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Where("user_id = ? AND type =? AND used_at IS NULL", userID, kind).
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First(&tok)
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tokenVal, err := generateRandomToken(16)
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if err != nil {
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return tok, errors.Wrap(err, "generating token value")
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}
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if conn.RecordNotFound() {
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tok = database.Token{
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UserID: userID,
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Type: kind,
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Value: tokenVal,
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}
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if err := db.Save(&tok).Error; err != nil {
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return tok, errors.Wrap(err, "saving token")
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}
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return tok, nil
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} else if err := conn.Error; err != nil {
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return tok, errors.Wrap(err, "finding token")
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}
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return tok, nil
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}
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