gotosocial/internal/db/bundb/session.go

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/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package bundb
import (
"context"
"crypto/rand"
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"errors"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
)
type sessionDB struct {
conn *DBConn
}
func (s *sessionDB) GetSession(ctx context.Context) (*gtsmodel.RouterSession, db.Error) {
rss := make([]*gtsmodel.RouterSession, 0, 1)
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_, err := s.conn.
NewSelect().
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Model(&rss).
Limit(1).
Order("id DESC").
Exec(ctx)
if err != nil {
return nil, s.conn.ProcessError(err)
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}
if len(rss) == 0 {
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// no session created yet, so make one
return s.createSession(ctx)
}
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if len(rss) != 1 {
// we asked for 1 so we should get 1
return nil, errors.New("more than 1 router session was returned")
}
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// return the one session found
rs := rss[0]
return rs, nil
}
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func (s *sessionDB) createSession(ctx context.Context) (*gtsmodel.RouterSession, db.Error) {
auth := make([]byte, 32)
crypt := make([]byte, 32)
if _, err := rand.Read(auth); err != nil {
return nil, err
}
if _, err := rand.Read(crypt); err != nil {
return nil, err
}
rid, err := id.NewULID()
if err != nil {
return nil, err
}
rs := &gtsmodel.RouterSession{
ID: rid,
Auth: auth,
Crypt: crypt,
}
q := s.conn.
NewInsert().
Model(rs)
_, err = q.Exec(ctx)
if err != nil {
return nil, s.conn.ProcessError(err)
}
return rs, nil
}