GoToSocial/internal/media/manager.go

371 lines
12 KiB
Go

// 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 media
import (
"context"
"errors"
"fmt"
"io"
"time"
"codeberg.org/gruf/go-iotools"
"codeberg.org/gruf/go-store/v2/storage"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
var SupportedMIMETypes = []string{
mimeImageJpeg,
mimeImageGif,
mimeImagePng,
mimeImageWebp,
mimeVideoMp4,
}
var SupportedEmojiMIMETypes = []string{
mimeImageGif,
mimeImagePng,
}
type Manager struct {
state *state.State
}
// NewManager returns a media manager with given state.
func NewManager(state *state.State) *Manager {
m := &Manager{state: state}
return m
}
// PreProcessMedia 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.
//
// 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.
//
// Note: unlike ProcessMedia, this will NOT queue the media to be asynchronously processed.
func (m *Manager) PreProcessMedia(ctx context.Context, data DataFunc, accountID string, ai *AdditionalMediaInfo) (*ProcessingMedia, error) {
id, err := id.NewRandomULID()
if err != nil {
return nil, err
}
avatar := false
header := false
cached := false
now := time.Now()
// populate initial fields on the media attachment -- some of these will be overwritten as we proceed
attachment := &gtsmodel.MediaAttachment{
ID: id,
CreatedAt: now,
UpdatedAt: now,
StatusID: "",
URL: "", // we don't know yet because it depends on the uncalled DataFunc
RemoteURL: "",
Type: gtsmodel.FileTypeUnknown, // we don't know yet because it depends on the uncalled DataFunc
FileMeta: gtsmodel.FileMeta{},
AccountID: accountID,
Description: "",
ScheduledStatusID: "",
Blurhash: "",
Processing: gtsmodel.ProcessingStatusReceived,
File: gtsmodel.File{UpdatedAt: now},
Thumbnail: gtsmodel.Thumbnail{UpdatedAt: now},
Avatar: &avatar,
Header: &header,
Cached: &cached,
}
// check if we have additional info to add to the attachment,
// and overwrite some of the attachment fields if so
if ai != nil {
if ai.CreatedAt != nil {
attachment.CreatedAt = *ai.CreatedAt
}
if ai.StatusID != nil {
attachment.StatusID = *ai.StatusID
}
if ai.RemoteURL != nil {
attachment.RemoteURL = *ai.RemoteURL
}
if ai.Description != nil {
attachment.Description = *ai.Description
}
if ai.ScheduledStatusID != nil {
attachment.ScheduledStatusID = *ai.ScheduledStatusID
}
if ai.Blurhash != nil {
attachment.Blurhash = *ai.Blurhash
}
if ai.Avatar != nil {
attachment.Avatar = ai.Avatar
}
if ai.Header != nil {
attachment.Header = ai.Header
}
if ai.FocusX != nil {
attachment.FileMeta.Focus.X = *ai.FocusX
}
if ai.FocusY != nil {
attachment.FileMeta.Focus.Y = *ai.FocusY
}
}
processingMedia := &ProcessingMedia{
media: attachment,
dataFn: data,
mgr: m,
}
return processingMedia, nil
}
// PreProcessMediaRecache refetches, reprocesses, and recaches an existing attachment that has been uncached via cleaner pruning.
//
// Note: unlike ProcessMedia, this will NOT queue the media to be asychronously processed.
func (m *Manager) PreProcessMediaRecache(ctx context.Context, data DataFunc, attachmentID string) (*ProcessingMedia, error) {
// get the existing attachment from database.
attachment, err := m.state.DB.GetAttachmentByID(ctx, attachmentID)
if err != nil {
return nil, err
}
processingMedia := &ProcessingMedia{
media: attachment,
dataFn: data,
recache: true, // indicate it's a recache
mgr: m,
}
return processingMedia, nil
}
// ProcessMedia will call PreProcessMedia, followed by queuing the media to be processing in the media worker queue.
func (m *Manager) ProcessMedia(ctx context.Context, data DataFunc, accountID string, ai *AdditionalMediaInfo) (*ProcessingMedia, error) {
// Create a new processing media object for this media request.
media, err := m.PreProcessMedia(ctx, data, accountID, ai)
if err != nil {
return nil, err
}
// Attempt to add this media processing item to the worker queue.
_ = m.state.Workers.Media.MustEnqueueCtx(ctx, media.Process)
return media, nil
}
// PreProcessEmoji 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.
//
// 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.
//
// Note: unlike ProcessEmoji, this will NOT queue the emoji to be asynchronously processed.
func (m *Manager) PreProcessEmoji(ctx context.Context, data DataFunc, shortcode string, emojiID string, uri string, ai *AdditionalEmojiInfo, refresh bool) (*ProcessingEmoji, error) {
var (
newPathID string
emoji *gtsmodel.Emoji
now = time.Now()
)
// Fetch the local instance account for emoji path generation.
instanceAcc, err := m.state.DB.GetInstanceAccount(ctx, "")
if err != nil {
return nil, gtserror.Newf("error fetching instance account: %w", err)
}
if refresh {
// Look for existing emoji by given ID.
emoji, err = m.state.DB.GetEmojiByID(ctx, emojiID)
if err != nil {
return nil, gtserror.Newf("error fetching emoji to refresh from the db: %s", err)
}
// if this is a refresh, we will end up with new images
// stored for this emoji, so we can use an io.Closer callback
// to perform clean up of the old images from storage
originalData := data
originalImagePath := emoji.ImagePath
originalImageStaticPath := emoji.ImageStaticPath
data = func(ctx context.Context) (io.ReadCloser, int64, error) {
// Call original data func.
rc, sz, err := originalData(ctx)
if err != nil {
return nil, 0, err
}
// Wrap closer to cleanup old data.
c := iotools.CloserCallback(rc, func() {
if err := m.state.Storage.Delete(ctx, originalImagePath); err != nil && !errors.Is(err, storage.ErrNotFound) {
log.Errorf(ctx, "error removing old emoji %s@%s from storage: %v", emoji.Shortcode, emoji.Domain, err)
}
if err := m.state.Storage.Delete(ctx, originalImageStaticPath); err != nil && !errors.Is(err, storage.ErrNotFound) {
log.Errorf(ctx, "error removing old static emoji %s@%s from storage: %v", emoji.Shortcode, emoji.Domain, err)
}
})
// Return newly wrapped readcloser and size.
return iotools.ReadCloser(rc, c), sz, nil
}
newPathID, err = id.NewRandomULID()
if err != nil {
return nil, gtserror.Newf("error generating alternateID for emoji refresh: %s", err)
}
// store + serve static image at new path ID
emoji.ImageStaticURL = uris.GenerateURIForAttachment(instanceAcc.ID, string(TypeEmoji), string(SizeStatic), newPathID, mimePng)
emoji.ImageStaticPath = fmt.Sprintf("%s/%s/%s/%s.%s", instanceAcc.ID, TypeEmoji, SizeStatic, newPathID, mimePng)
emoji.Shortcode = shortcode
emoji.URI = uri
} else {
disabled := false
visibleInPicker := true
// populate initial fields on the emoji -- some of these will be overwritten as we proceed
emoji = &gtsmodel.Emoji{
ID: emojiID,
CreatedAt: now,
Shortcode: shortcode,
Domain: "", // assume our own domain unless told otherwise
ImageRemoteURL: "",
ImageStaticRemoteURL: "",
ImageURL: "", // we don't know yet
ImageStaticURL: uris.GenerateURIForAttachment(instanceAcc.ID, string(TypeEmoji), string(SizeStatic), emojiID, mimePng), // all static emojis are encoded as png
ImagePath: "", // we don't know yet
ImageStaticPath: fmt.Sprintf("%s/%s/%s/%s.%s", instanceAcc.ID, TypeEmoji, SizeStatic, emojiID, mimePng), // all static emojis are encoded as png
ImageContentType: "", // we don't know yet
ImageStaticContentType: mimeImagePng, // all static emojis are encoded as png
ImageFileSize: 0,
ImageStaticFileSize: 0,
Disabled: &disabled,
URI: uri,
VisibleInPicker: &visibleInPicker,
CategoryID: "",
}
}
emoji.ImageUpdatedAt = now
emoji.UpdatedAt = now
// check if we have additional info to add to the emoji,
// and overwrite some of the emoji fields if so
if ai != nil {
if ai.CreatedAt != nil {
emoji.CreatedAt = *ai.CreatedAt
}
if ai.Domain != nil {
emoji.Domain = *ai.Domain
}
if ai.ImageRemoteURL != nil {
emoji.ImageRemoteURL = *ai.ImageRemoteURL
}
if ai.ImageStaticRemoteURL != nil {
emoji.ImageStaticRemoteURL = *ai.ImageStaticRemoteURL
}
if ai.Disabled != nil {
emoji.Disabled = ai.Disabled
}
if ai.VisibleInPicker != nil {
emoji.VisibleInPicker = ai.VisibleInPicker
}
if ai.CategoryID != nil {
emoji.CategoryID = *ai.CategoryID
}
}
processingEmoji := &ProcessingEmoji{
emoji: emoji,
existing: refresh,
newPathID: newPathID,
dataFn: data,
mgr: m,
}
return processingEmoji, nil
}
// PreProcessEmojiRecache refetches, reprocesses, and recaches an existing emoji that has been uncached via cleaner pruning.
//
// Note: unlike ProcessEmoji, this will NOT queue the emoji to be asychronously processed.
func (m *Manager) PreProcessEmojiRecache(ctx context.Context, data DataFunc, emojiID string) (*ProcessingEmoji, error) {
// get the existing emoji from the database.
emoji, err := m.state.DB.GetEmojiByID(ctx, emojiID)
if err != nil {
return nil, err
}
processingEmoji := &ProcessingEmoji{
emoji: emoji,
dataFn: data,
existing: true, // inidcate recache
mgr: m,
}
return processingEmoji, nil
}
// ProcessEmoji will call PreProcessEmoji, followed by queuing the emoji to be processing in the emoji worker queue.
func (m *Manager) ProcessEmoji(ctx context.Context, data DataFunc, shortcode string, id string, uri string, ai *AdditionalEmojiInfo, refresh bool) (*ProcessingEmoji, error) {
// Create a new processing emoji object for this emoji request.
emoji, err := m.PreProcessEmoji(ctx, data, shortcode, id, uri, ai, refresh)
if err != nil {
return nil, err
}
// Attempt to add this emoji processing item to the worker queue.
_ = m.state.Workers.Media.MustEnqueueCtx(ctx, emoji.Process)
return emoji, nil
}