mirror of
https://github.com/ProtonMail/proton-bridge.git
synced 2025-12-10 04:36:43 +00:00
117 lines
2.6 KiB
Go
117 lines
2.6 KiB
Go
// Copyright (c) 2023 Proton AG
|
|
//
|
|
// This file is part of Proton Mail Bridge.
|
|
//
|
|
// Proton Mail Bridge is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// Proton Mail Bridge 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 General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
package logging
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/ProtonMail/proton-bridge/v3/internal/constants"
|
|
)
|
|
|
|
type Rotator struct {
|
|
getFile FileProvider
|
|
prune Pruner
|
|
wc io.WriteCloser
|
|
size int64
|
|
maxFileSize int64
|
|
nextIndex int
|
|
}
|
|
|
|
type FileProvider func(index int) (io.WriteCloser, error)
|
|
|
|
func defaultFileProvider(logsPath string, sessionID SessionID, appName AppName) FileProvider {
|
|
return func(index int) (io.WriteCloser, error) {
|
|
return os.Create(filepath.Join(logsPath, //nolint:gosec // G304
|
|
fmt.Sprintf("%v_%v_%03d_v%v_%v.log", sessionID, appName, index, constants.Version, constants.Tag),
|
|
))
|
|
}
|
|
}
|
|
|
|
func NewRotator(maxFileSize int64, getFile FileProvider, prune Pruner) (*Rotator, error) {
|
|
r := &Rotator{
|
|
getFile: getFile,
|
|
prune: prune,
|
|
maxFileSize: maxFileSize,
|
|
}
|
|
|
|
if err := r.rotate(); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return r, nil
|
|
}
|
|
|
|
func NewDefaultRotator(logsPath string, sessionID SessionID, appName AppName, maxLogFileSize, pruningSize int64) (*Rotator, error) {
|
|
var pruner Pruner
|
|
if pruningSize < 0 {
|
|
pruner = nullPruner
|
|
} else {
|
|
pruner = defaultPruner(logsPath, sessionID, pruningSize)
|
|
}
|
|
|
|
return NewRotator(maxLogFileSize, defaultFileProvider(logsPath, sessionID, appName), pruner)
|
|
}
|
|
|
|
func (r *Rotator) Write(p []byte) (int, error) {
|
|
if r.size+int64(len(p)) > r.maxFileSize {
|
|
if err := r.rotate(); err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
|
|
n, err := r.wc.Write(p)
|
|
if err != nil {
|
|
return n, err
|
|
}
|
|
|
|
r.size += int64(n)
|
|
return n, nil
|
|
}
|
|
|
|
func (r *Rotator) Close() error {
|
|
if r.wc != nil {
|
|
return r.wc.Close()
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (r *Rotator) rotate() error {
|
|
if r.wc != nil {
|
|
_ = r.wc.Close()
|
|
}
|
|
|
|
if _, err := r.prune(); err != nil {
|
|
return err
|
|
}
|
|
|
|
wc, err := r.getFile(r.nextIndex)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
r.nextIndex++
|
|
r.wc = wc
|
|
r.size = 0
|
|
|
|
return nil
|
|
}
|