97 lines
3.3 KiB
Go
97 lines
3.3 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package media
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import (
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"context"
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"fmt"
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"time"
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"codeberg.org/gruf/go-store/storage"
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"github.com/sirupsen/logrus"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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)
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// amount of media attachments to select at a time from the db when pruning
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const selectPruneLimit = 20
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func (m *manager) PruneRemote(ctx context.Context, olderThanDays int) (int, error) {
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var totalPruned int
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// convert days into a duration string
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olderThanHoursString := fmt.Sprintf("%dh", olderThanDays*24)
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// parse the duration string into a duration
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olderThanHours, err := time.ParseDuration(olderThanHoursString)
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if err != nil {
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return totalPruned, fmt.Errorf("PruneRemote: %d", err)
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}
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// 'subtract' that from the time now to give our threshold
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olderThan := time.Now().Add(-olderThanHours)
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logrus.Infof("PruneRemote: pruning media older than %s", olderThan)
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// select 20 attachments at a time and prune them
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for attachments, err := m.db.GetRemoteOlderThan(ctx, olderThan, selectPruneLimit); err == nil && len(attachments) != 0; attachments, err = m.db.GetRemoteOlderThan(ctx, olderThan, selectPruneLimit) {
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// use the age of the oldest attachment (the last one in the slice) as the next 'older than' value
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l := len(attachments)
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logrus.Tracef("PruneRemote: got %d attachments older than %s", l, olderThan)
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olderThan = attachments[l-1].CreatedAt
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// prune each attachment
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for _, attachment := range attachments {
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if err := m.PruneOne(ctx, attachment); err != nil {
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return totalPruned, err
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}
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totalPruned++
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}
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}
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// make sure we don't have a real error when we leave the loop
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if err != nil && err != db.ErrNoEntries {
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return totalPruned, err
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}
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logrus.Infof("PruneRemote: finished pruning remote media: pruned %d entries", totalPruned)
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return totalPruned, nil
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}
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func (m *manager) PruneOne(ctx context.Context, attachment *gtsmodel.MediaAttachment) error {
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if attachment.File.Path != "" {
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// delete the full size attachment from storage
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logrus.Tracef("PruneOne: deleting %s", attachment.File.Path)
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if err := m.storage.Delete(attachment.File.Path); err != nil && err != storage.ErrNotFound {
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return err
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}
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attachment.Cached = false
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}
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if attachment.Thumbnail.Path != "" {
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// delete the thumbnail from storage
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logrus.Tracef("PruneOne: deleting %s", attachment.Thumbnail.Path)
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if err := m.storage.Delete(attachment.Thumbnail.Path); err != nil && err != storage.ErrNotFound {
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return err
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}
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attachment.Cached = false
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}
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// update the attachment to reflect that we no longer have it cached
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return m.db.UpdateByPrimaryKey(ctx, attachment)
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}
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