forgejo/models/session.go
zeripath 9302eba971
DBContext is just a Context (#17100)
* DBContext is just a Context

This PR removes some of the specialness from the DBContext and makes it context
This allows us to simplify the GetEngine code to wrap around any context in future
and means that we can change our loadRepo(e Engine) functions to simply take contexts.

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix unit tests

Signed-off-by: Andrew Thornton <art27@cantab.net>

* another place that needs to set the initial context

Signed-off-by: Andrew Thornton <art27@cantab.net>

* avoid race

Signed-off-by: Andrew Thornton <art27@cantab.net>

* change attachment error

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-09-23 23:45:36 +08:00

128 lines
3 KiB
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"fmt"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/timeutil"
)
// Session represents a session compatible for go-chi session
type Session struct {
Key string `xorm:"pk CHAR(16)"` // has to be Key to match with go-chi/session
Data []byte `xorm:"BLOB"`
Expiry timeutil.TimeStamp // has to be Expiry to match with go-chi/session
}
func init() {
db.RegisterModel(new(Session))
}
// UpdateSession updates the session with provided id
func UpdateSession(key string, data []byte) error {
_, err := db.GetEngine(db.DefaultContext).ID(key).Update(&Session{
Data: data,
Expiry: timeutil.TimeStampNow(),
})
return err
}
// ReadSession reads the data for the provided session
func ReadSession(key string) (*Session, error) {
session := Session{
Key: key,
}
sess := db.NewSession(db.DefaultContext)
defer sess.Close()
if err := sess.Begin(); err != nil {
return nil, err
}
if has, err := sess.Get(&session); err != nil {
return nil, err
} else if !has {
session.Expiry = timeutil.TimeStampNow()
_, err := sess.Insert(&session)
if err != nil {
return nil, err
}
}
return &session, sess.Commit()
}
// ExistSession checks if a session exists
func ExistSession(key string) (bool, error) {
session := Session{
Key: key,
}
return db.GetEngine(db.DefaultContext).Get(&session)
}
// DestroySession destroys a session
func DestroySession(key string) error {
_, err := db.GetEngine(db.DefaultContext).Delete(&Session{
Key: key,
})
return err
}
// RegenerateSession regenerates a session from the old id
func RegenerateSession(oldKey, newKey string) (*Session, error) {
sess := db.NewSession(db.DefaultContext)
defer sess.Close()
if err := sess.Begin(); err != nil {
return nil, err
}
if has, err := sess.Get(&Session{
Key: newKey,
}); err != nil {
return nil, err
} else if has {
return nil, fmt.Errorf("session Key: %s already exists", newKey)
}
if has, err := sess.Get(&Session{
Key: oldKey,
}); err != nil {
return nil, err
} else if !has {
_, err := sess.Insert(&Session{
Key: oldKey,
Expiry: timeutil.TimeStampNow(),
})
if err != nil {
return nil, err
}
}
if _, err := sess.Exec("UPDATE "+sess.Engine().TableName(&Session{})+" SET `key` = ? WHERE `key`=?", newKey, oldKey); err != nil {
return nil, err
}
s := Session{
Key: newKey,
}
if _, err := sess.Get(&s); err != nil {
return nil, err
}
return &s, sess.Commit()
}
// CountSessions returns the number of sessions
func CountSessions() (int64, error) {
return db.GetEngine(db.DefaultContext).Count(&Session{})
}
// CleanupSessions cleans up expired sessions
func CleanupSessions(maxLifetime int64) error {
_, err := db.GetEngine(db.DefaultContext).Where("expiry <= ?", timeutil.TimeStampNow().Add(-maxLifetime)).Delete(&Session{})
return err
}