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