mirror of
https://github.com/go-vikunja/vikunja.git
synced 2026-11-09 00:22:38 -06:00
59 lines
2.2 KiB
Go
59 lines
2.2 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-present Vikunja and contributors. All rights reserved.
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//
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// This program 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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// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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package user
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import (
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"strconv"
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"time"
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"code.vikunja.io/api/pkg/events"
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"code.vikunja.io/api/pkg/modules/keyvalue"
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"xorm.io/xorm"
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)
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// Bounds how long a revocation that skipped InvalidateSessionAuthCache (expiry cron, direct db edits) stays unnoticed.
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const SessionAuthCacheTTL = 30 * time.Second
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// Never expires: if it reset, a counter climbing back to an old value would revive that value's entries.
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func sessionAuthGenerationKey(userID int64) string {
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return "session_auth_gen_" + strconv.FormatInt(userID, 10)
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}
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// Build it before the db check, so an invalidation during the check orphans the entry.
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func SessionAuthCacheKey(userID int64, sessionID string) (string, error) {
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gen, _, err := keyvalue.GetInt64(sessionAuthGenerationKey(userID))
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if err != nil {
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return "", err
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}
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return "session_auth_ok_" + strconv.FormatInt(userID, 10) + "_" + strconv.FormatInt(gen, 10) + "_" + sessionID, nil
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}
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// Inside a transaction use InvalidateSessionAuthCacheOnCommit instead.
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func InvalidateSessionAuthCache(userID int64) error {
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return keyvalue.IncrBy(sessionAuthGenerationKey(userID), 1)
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}
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// Invalidates again on commit: a request racing the transaction could re-cache the old state.
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func InvalidateSessionAuthCacheOnCommit(s *xorm.Session, userID int64) error {
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if err := InvalidateSessionAuthCache(userID); err != nil {
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return err
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}
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events.OnCommit(s, func() error { return InvalidateSessionAuthCache(userID) })
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return nil
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}
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