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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 cleaner
import (
"context"
"errors"
"time"
"codeberg.org/gruf/go-runners"
"codeberg.org/gruf/go-sched"
"codeberg.org/gruf/go-store/v2/storage"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/state"
)
const (
selectLimit = 50
)
type Cleaner struct {
state *state.State
emoji Emoji
media Media
}
func New(state *state.State) *Cleaner {
c := new(Cleaner)
c.state = state
c.emoji.Cleaner = c
c.media.Cleaner = c
scheduleJobs(c)
return c
}
// Emoji returns the emoji set of cleaner utilities.
func (c *Cleaner) Emoji() *Emoji {
return &c.emoji
}
// Media returns the media set of cleaner utilities.
func (c *Cleaner) Media() *Media {
return &c.media
}
// haveFiles returns whether all of the provided files exist within current storage.
func (c *Cleaner) haveFiles(ctx context.Context, files ...string) (bool, error) {
for _, file := range files {
// Check whether each file exists in storage.
have, err := c.state.Storage.Has(ctx, file)
if err != nil {
return false, gtserror.Newf("error checking storage for %s: %w", file, err)
} else if !have {
// Missing file(s).
return false, nil
}
}
return true, nil
}
// removeFiles removes the provided files, returning the number of them returned.
func (c *Cleaner) removeFiles(ctx context.Context, files ...string) (int, error) {
if gtscontext.DryRun(ctx) {
// Dry run, do nothing.
return len(files), nil
}
var errs gtserror.MultiError
for _, path := range files {
// Remove each provided storage path.
log.Debugf(ctx, "removing file: %s", path)
err := c.state.Storage.Delete(ctx, path)
if err != nil && !errors.Is(err, storage.ErrNotFound) {
errs.Appendf("error removing %s: %v", path, err)
}
}
// Calculate no. files removed.
diff := len(files) - len(errs)
// Wrap the combined error slice.
if err := errs.Combine(); err != nil {
return diff, gtserror.Newf("error(s) removing files: %w", err)
}
return diff, nil
}
func scheduleJobs(c *Cleaner) {
const day = time.Hour * 24
// Calculate closest midnight.
now := time.Now()
midnight := now.Round(day)
if midnight.Before(now) {
// since <= 11:59am rounds down.
midnight = midnight.Add(day)
}
// Get ctx associated with scheduler run state.
done := c.state.Workers.Scheduler.Done()
doneCtx := runners.CancelCtx(done)
// TODO: we'll need to do some thinking to make these
// jobs restartable if we want to implement reloads in
// the future that make call to Workers.Stop() -> Workers.Start().
// Schedule the cleaning tasks to execute every day at midnight.
c.state.Workers.Scheduler.Schedule(sched.NewJob(func(start time.Time) {
log.Info(nil, "starting media clean")
c.Media().All(doneCtx, config.GetMediaRemoteCacheDays())
c.Emoji().All(doneCtx, config.GetMediaRemoteCacheDays())
log.Infof(nil, "finished media clean after %s", time.Since(start))
}).EveryAt(midnight, day))
}
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