syncthing/lib/syncthing/auditservice.go

56 lines
1.1 KiB
Go

// Copyright (C) 2015 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package syncthing
import (
"context"
"encoding/json"
"fmt"
"io"
"github.com/syncthing/syncthing/lib/events"
)
// The auditService subscribes to events and writes these in JSON format, one
// event per line, to the specified writer.
type auditService struct {
w io.Writer // audit destination
evLogger events.Logger
}
func newAuditService(w io.Writer, evLogger events.Logger) *auditService {
return &auditService{
w: w,
evLogger: evLogger,
}
}
// serve runs the audit service.
func (s *auditService) Serve(ctx context.Context) error {
sub := s.evLogger.Subscribe(events.AllEvents)
defer sub.Unsubscribe()
enc := json.NewEncoder(s.w)
for {
select {
case ev, ok := <-sub.C():
if !ok {
<-ctx.Done()
return ctx.Err()
}
enc.Encode(ev)
case <-ctx.Done():
return ctx.Err()
}
}
}
func (s *auditService) String() string {
return fmt.Sprintf("auditService@%p", s)
}