mirror of
https://github.com/superseriousbusiness/gotosocial
synced 2024-11-14 16:57:11 +00:00
271 lines
10 KiB
Go
271 lines
10 KiB
Go
/*
|
|
GoToSocial
|
|
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
|
|
|
|
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 media
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/robfig/cron/v3"
|
|
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
|
|
"github.com/superseriousbusiness/gotosocial/internal/config"
|
|
"github.com/superseriousbusiness/gotosocial/internal/db"
|
|
"github.com/superseriousbusiness/gotosocial/internal/log"
|
|
"github.com/superseriousbusiness/gotosocial/internal/storage"
|
|
)
|
|
|
|
// selectPruneLimit is the amount of media entries to select at a time from the db when pruning
|
|
const selectPruneLimit = 20
|
|
|
|
// UnusedLocalAttachmentCacheDays is the amount of days to keep local media in storage if it
|
|
// is not attached to a status, or was never attached to a status.
|
|
const UnusedLocalAttachmentCacheDays = 3
|
|
|
|
// Manager provides an interface for managing media: parsing, storing, and retrieving media objects like photos, videos, and gifs.
|
|
type Manager interface {
|
|
// ProcessMedia begins the process of decoding and storing the given data as an attachment.
|
|
// It will return a pointer to a ProcessingMedia struct upon which further actions can be performed, such as getting
|
|
// the finished media, thumbnail, attachment, etc.
|
|
//
|
|
// data should be a function that the media manager can call to return a reader containing the media data.
|
|
//
|
|
// postData will be called after data has been called; it can be used to clean up any remaining resources.
|
|
// The provided function can be nil, in which case it will not be executed.
|
|
//
|
|
// accountID should be the account that the media belongs to.
|
|
//
|
|
// ai is optional and can be nil. Any additional information about the attachment provided will be put in the database.
|
|
ProcessMedia(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, accountID string, ai *AdditionalMediaInfo) (*ProcessingMedia, error)
|
|
// ProcessEmoji begins the process of decoding and storing the given data as an emoji.
|
|
// It will return a pointer to a ProcessingEmoji struct upon which further actions can be performed, such as getting
|
|
// the finished media, thumbnail, attachment, etc.
|
|
//
|
|
// data should be a function that the media manager can call to return a reader containing the emoji data.
|
|
//
|
|
// postData will be called after data has been called; it can be used to clean up any remaining resources.
|
|
// The provided function can be nil, in which case it will not be executed.
|
|
//
|
|
// shortcode should be the emoji shortcode without the ':'s around it.
|
|
//
|
|
// id is the database ID that should be used to store the emoji.
|
|
//
|
|
// uri is the ActivityPub URI/ID of the emoji.
|
|
//
|
|
// ai is optional and can be nil. Any additional information about the emoji provided will be put in the database.
|
|
//
|
|
// If refresh is true, this indicates that the emoji image has changed and should be updated.
|
|
ProcessEmoji(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, shortcode string, id string, uri string, ai *AdditionalEmojiInfo, refresh bool) (*ProcessingEmoji, error)
|
|
// RecacheMedia refetches, reprocesses, and recaches an existing attachment that has been uncached via pruneRemote.
|
|
RecacheMedia(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, attachmentID string) (*ProcessingMedia, error)
|
|
|
|
// PruneAllRemote prunes all remote media attachments cached on this instance which are older than the given amount of days.
|
|
// 'Pruning' in this context means removing the locally stored data of the attachment (both thumbnail and full size),
|
|
// and setting 'cached' to false on the associated attachment.
|
|
//
|
|
// The returned int is the amount of media that was pruned by this function.
|
|
PruneAllRemote(ctx context.Context, olderThanDays int) (int, error)
|
|
// PruneAllMeta prunes unused/out of date headers and avatars cached on this instance.
|
|
//
|
|
// The returned int is the amount of media that was pruned by this function.
|
|
PruneAllMeta(ctx context.Context) (int, error)
|
|
// PruneUnusedLocalAttachments prunes unused media attachments that were uploaded by
|
|
// a user on this instance, but never actually attached to a status, or attached but
|
|
// later detached.
|
|
//
|
|
// The returned int is the amount of media that was pruned by this function.
|
|
PruneUnusedLocalAttachments(ctx context.Context) (int, error)
|
|
|
|
// Stop stops the underlying worker pool of the manager. It should be called
|
|
// when closing GoToSocial in order to cleanly finish any in-progress jobs.
|
|
// It will block until workers are finished processing.
|
|
Stop() error
|
|
}
|
|
|
|
type manager struct {
|
|
db db.DB
|
|
storage *storage.Driver
|
|
emojiWorker *concurrency.WorkerPool[*ProcessingEmoji]
|
|
mediaWorker *concurrency.WorkerPool[*ProcessingMedia]
|
|
stopCronJobs func() error
|
|
}
|
|
|
|
// NewManager returns a media manager with the given db and underlying storage.
|
|
//
|
|
// A worker pool will also be initialized for the manager, to ensure that only
|
|
// a limited number of media will be processed in parallel. The numbers of workers
|
|
// is determined from the $GOMAXPROCS environment variable (usually no. CPU cores).
|
|
// See internal/concurrency.NewWorkerPool() documentation for further information.
|
|
func NewManager(database db.DB, storage *storage.Driver) (Manager, error) {
|
|
m := &manager{
|
|
db: database,
|
|
storage: storage,
|
|
}
|
|
|
|
// Prepare the media worker pool
|
|
m.mediaWorker = concurrency.NewWorkerPool[*ProcessingMedia](-1, 10)
|
|
m.mediaWorker.SetProcessor(func(ctx context.Context, media *ProcessingMedia) error {
|
|
if err := ctx.Err(); err != nil {
|
|
return err
|
|
}
|
|
if _, err := media.LoadAttachment(ctx); err != nil {
|
|
return fmt.Errorf("error loading media %s: %v", media.AttachmentID(), err)
|
|
}
|
|
return nil
|
|
})
|
|
|
|
// Prepare the emoji worker pool
|
|
m.emojiWorker = concurrency.NewWorkerPool[*ProcessingEmoji](-1, 10)
|
|
m.emojiWorker.SetProcessor(func(ctx context.Context, emoji *ProcessingEmoji) error {
|
|
if err := ctx.Err(); err != nil {
|
|
return err
|
|
}
|
|
if _, err := emoji.LoadEmoji(ctx); err != nil {
|
|
return fmt.Errorf("error loading emoji %s: %v", emoji.EmojiID(), err)
|
|
}
|
|
return nil
|
|
})
|
|
|
|
// Start the worker pools
|
|
if err := m.mediaWorker.Start(); err != nil {
|
|
return nil, err
|
|
}
|
|
if err := m.emojiWorker.Start(); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if err := scheduleCleanupJobs(m); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return m, nil
|
|
}
|
|
|
|
func (m *manager) ProcessMedia(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, accountID string, ai *AdditionalMediaInfo) (*ProcessingMedia, error) {
|
|
processingMedia, err := m.preProcessMedia(ctx, data, postData, accountID, ai)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
m.mediaWorker.Queue(processingMedia)
|
|
return processingMedia, nil
|
|
}
|
|
|
|
func (m *manager) ProcessEmoji(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, shortcode string, id string, uri string, ai *AdditionalEmojiInfo, refresh bool) (*ProcessingEmoji, error) {
|
|
processingEmoji, err := m.preProcessEmoji(ctx, data, postData, shortcode, id, uri, ai, refresh)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
m.emojiWorker.Queue(processingEmoji)
|
|
return processingEmoji, nil
|
|
}
|
|
|
|
func (m *manager) RecacheMedia(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, attachmentID string) (*ProcessingMedia, error) {
|
|
processingRecache, err := m.preProcessRecache(ctx, data, postData, attachmentID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
m.mediaWorker.Queue(processingRecache)
|
|
return processingRecache, nil
|
|
}
|
|
|
|
func (m *manager) Stop() error {
|
|
// Stop media and emoji worker pools
|
|
mediaErr := m.mediaWorker.Stop()
|
|
emojiErr := m.emojiWorker.Stop()
|
|
|
|
var cronErr error
|
|
if m.stopCronJobs != nil {
|
|
cronErr = m.stopCronJobs()
|
|
}
|
|
|
|
if mediaErr != nil {
|
|
return mediaErr
|
|
} else if emojiErr != nil {
|
|
return emojiErr
|
|
}
|
|
|
|
return cronErr
|
|
}
|
|
|
|
func scheduleCleanupJobs(m *manager) error {
|
|
// create a new cron instance for scheduling cleanup jobs
|
|
c := cron.New(cron.WithLogger(&logrusWrapper{}))
|
|
pruneCtx, pruneCancel := context.WithCancel(context.Background())
|
|
|
|
if _, err := c.AddFunc("@midnight", func() {
|
|
begin := time.Now()
|
|
pruned, err := m.PruneAllMeta(pruneCtx)
|
|
if err != nil {
|
|
log.Errorf("media manager: error pruning meta: %s", err)
|
|
return
|
|
}
|
|
log.Infof("media manager: pruned %d meta entries in %s", pruned, time.Since(begin))
|
|
}); err != nil {
|
|
pruneCancel()
|
|
return fmt.Errorf("error starting media manager meta cleanup job: %s", err)
|
|
}
|
|
|
|
if _, err := c.AddFunc("@midnight", func() {
|
|
begin := time.Now()
|
|
pruned, err := m.PruneUnusedLocalAttachments(pruneCtx)
|
|
if err != nil {
|
|
log.Errorf("media manager: error pruning unused local attachments: %s", err)
|
|
return
|
|
}
|
|
log.Infof("media manager: pruned %d unused local attachments in %s", pruned, time.Since(begin))
|
|
}); err != nil {
|
|
pruneCancel()
|
|
return fmt.Errorf("error starting media manager unused local attachments cleanup job: %s", err)
|
|
}
|
|
|
|
// start remote cache cleanup cronjob if configured
|
|
if mediaRemoteCacheDays := config.GetMediaRemoteCacheDays(); mediaRemoteCacheDays > 0 {
|
|
if _, err := c.AddFunc("@midnight", func() {
|
|
begin := time.Now()
|
|
pruned, err := m.PruneAllRemote(pruneCtx, mediaRemoteCacheDays)
|
|
if err != nil {
|
|
log.Errorf("media manager: error pruning remote cache: %s", err)
|
|
return
|
|
}
|
|
log.Infof("media manager: pruned %d remote cache entries in %s", pruned, time.Since(begin))
|
|
}); err != nil {
|
|
pruneCancel()
|
|
return fmt.Errorf("error starting media manager remote cache cleanup job: %s", err)
|
|
}
|
|
}
|
|
|
|
// try to stop any jobs gracefully by waiting til they're finished
|
|
m.stopCronJobs = func() error {
|
|
cronCtx := c.Stop()
|
|
|
|
select {
|
|
case <-cronCtx.Done():
|
|
log.Infof("media manager: cron finished jobs and stopped gracefully")
|
|
case <-time.After(1 * time.Minute):
|
|
log.Infof("media manager: cron didn't stop after 60 seconds, will force close jobs")
|
|
break
|
|
}
|
|
|
|
pruneCancel()
|
|
return nil
|
|
}
|
|
|
|
c.Start()
|
|
return nil
|
|
}
|