GoToSocial/internal/db/bundb/session.go

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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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"
"io"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/uptrace/bun"
)
type sessionDB struct {
db *bun.DB
}
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func (s *sessionDB) GetSession(ctx context.Context) (*gtsmodel.RouterSession, error) {
rss := make([]*gtsmodel.RouterSession, 0, 1)
// get the first router session in the db or...
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if err := s.db.
NewSelect().
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Model(&rss).
Limit(1).
Order("router_session.id DESC").
Scan(ctx); err != nil {
return nil, err
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}
// ... create a new one
if len(rss) == 0 {
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return s.createSession(ctx)
}
return rss[0], nil
}
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func (s *sessionDB) createSession(ctx context.Context) (*gtsmodel.RouterSession, error) {
buf := make([]byte, 64)
auth := buf[:32]
crypt := buf[32:64]
if _, err := io.ReadFull(rand.Reader, buf); err != nil {
return nil, err
}
rs := &gtsmodel.RouterSession{
ID: id.NewULID(),
Auth: auth,
Crypt: crypt,
}
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if _, err := s.db.
NewInsert().
Model(rs).
Exec(ctx); err != nil {
return nil, err
}
return rs, nil
}