mirror of
https://github.com/dnote/dnote
synced 2026-03-17 16:00:08 +01:00
66 lines
1.7 KiB
Go
66 lines
1.7 KiB
Go
/* Copyright 2025 Dnote Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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/pkg/errors"
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"gorm.io/gorm"
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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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if _, err := rand.Read(b); 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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err := db.
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Where("user_id = ? AND type =? AND used_at IS NULL", userID, kind).
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First(&tok).Error
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tokenVal, genErr := generateRandomToken(16)
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if genErr != nil {
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return tok, errors.Wrap(genErr, "generating token value")
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}
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if errors.Is(err, gorm.ErrRecordNotFound) {
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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 != 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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