mirror of
https://codeberg.org/forgejo/forgejo.git
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f91dbbba98
Part of #27065
171 lines
3.7 KiB
Go
171 lines
3.7 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package session
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import (
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"log"
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"sync"
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"code.gitea.io/gitea/models/auth"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/modules/timeutil"
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"gitea.com/go-chi/session"
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)
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// DBStore represents a session store implementation based on the DB.
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type DBStore struct {
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sid string
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lock sync.RWMutex
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data map[any]any
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}
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// NewDBStore creates and returns a DB session store.
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func NewDBStore(sid string, kv map[any]any) *DBStore {
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return &DBStore{
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sid: sid,
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data: kv,
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}
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}
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// Set sets value to given key in session.
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func (s *DBStore) Set(key, val any) error {
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s.lock.Lock()
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defer s.lock.Unlock()
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s.data[key] = val
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return nil
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}
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// Get gets value by given key in session.
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func (s *DBStore) Get(key any) any {
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s.lock.RLock()
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defer s.lock.RUnlock()
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return s.data[key]
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}
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// Delete delete a key from session.
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func (s *DBStore) Delete(key any) error {
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s.lock.Lock()
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defer s.lock.Unlock()
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delete(s.data, key)
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return nil
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}
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// ID returns current session ID.
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func (s *DBStore) ID() string {
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return s.sid
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}
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// Release releases resource and save data to provider.
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func (s *DBStore) Release() error {
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// Skip encoding if the data is empty
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if len(s.data) == 0 {
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return nil
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}
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data, err := session.EncodeGob(s.data)
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if err != nil {
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return err
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}
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return auth.UpdateSession(db.DefaultContext, s.sid, data)
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}
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// Flush deletes all session data.
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func (s *DBStore) Flush() error {
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s.lock.Lock()
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defer s.lock.Unlock()
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s.data = make(map[any]any)
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return nil
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}
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// DBProvider represents a DB session provider implementation.
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type DBProvider struct {
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maxLifetime int64
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}
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// Init initializes DB session provider.
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// connStr: username:password@protocol(address)/dbname?param=value
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func (p *DBProvider) Init(maxLifetime int64, connStr string) error {
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p.maxLifetime = maxLifetime
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return nil
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}
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// Read returns raw session store by session ID.
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func (p *DBProvider) Read(sid string) (session.RawStore, error) {
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s, err := auth.ReadSession(db.DefaultContext, sid)
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if err != nil {
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return nil, err
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}
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var kv map[any]any
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if len(s.Data) == 0 || s.Expiry.Add(p.maxLifetime) <= timeutil.TimeStampNow() {
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kv = make(map[any]any)
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} else {
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kv, err = session.DecodeGob(s.Data)
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if err != nil {
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return nil, err
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}
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}
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return NewDBStore(sid, kv), nil
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}
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// Exist returns true if session with given ID exists.
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func (p *DBProvider) Exist(sid string) bool {
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has, err := auth.ExistSession(db.DefaultContext, sid)
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if err != nil {
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panic("session/DB: error checking existence: " + err.Error())
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}
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return has
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}
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// Destroy deletes a session by session ID.
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func (p *DBProvider) Destroy(sid string) error {
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return auth.DestroySession(db.DefaultContext, sid)
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}
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// Regenerate regenerates a session store from old session ID to new one.
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func (p *DBProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
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s, err := auth.RegenerateSession(db.DefaultContext, oldsid, sid)
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if err != nil {
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return nil, err
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}
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var kv map[any]any
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if len(s.Data) == 0 || s.Expiry.Add(p.maxLifetime) <= timeutil.TimeStampNow() {
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kv = make(map[any]any)
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} else {
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kv, err = session.DecodeGob(s.Data)
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if err != nil {
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return nil, err
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}
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}
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return NewDBStore(sid, kv), nil
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}
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// Count counts and returns number of sessions.
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func (p *DBProvider) Count() int {
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total, err := auth.CountSessions(db.DefaultContext)
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if err != nil {
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panic("session/DB: error counting records: " + err.Error())
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}
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return int(total)
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}
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// GC calls GC to clean expired sessions.
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func (p *DBProvider) GC() {
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if err := auth.CleanupSessions(db.DefaultContext, p.maxLifetime); err != nil {
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log.Printf("session/DB: error garbage collecting: %v", err)
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}
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}
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func init() {
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session.Register("db", &DBProvider{})
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}
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