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/*
GoToSocial
Copyright (C) 2021 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 (
"errors"
"fmt"
"strings"
"time"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
)
func (mh *mediaHandler) processImageAttachment(data []byte, minAttachment *gtsmodel.MediaAttachment) (*gtsmodel.MediaAttachment, error) {
var clean []byte
var err error
var original *imageAndMeta
var small *imageAndMeta
contentType := minAttachment.File.ContentType
switch contentType {
case MIMEJpeg, MIMEPng:
if clean, err = purgeExif(data); err != nil {
return nil, fmt.Errorf("error cleaning exif data: %s", err)
}
original, err = deriveImage(clean, contentType)
if err != nil {
return nil, fmt.Errorf("error parsing image: %s", err)
}
case MIMEGif:
clean = data
original, err = deriveGif(clean, contentType)
if err != nil {
return nil, fmt.Errorf("error parsing gif: %s", err)
}
default:
return nil, errors.New("media type unrecognized")
}
small, err = deriveThumbnail(clean, contentType, 512, 512)
if err != nil {
return nil, fmt.Errorf("error deriving thumbnail: %s", err)
}
// now put it in storage, take a new id for the name of the file so we don't store any unnecessary info about it
extension := strings.Split(contentType, "/")[1]
newMediaID, err := id.NewRandomULID()
if err != nil {
return nil, err
}
URLbase := fmt.Sprintf("%s://%s%s", mh.config.StorageConfig.ServeProtocol, mh.config.StorageConfig.ServeHost, mh.config.StorageConfig.ServeBasePath)
originalURL := fmt.Sprintf("%s/%s/attachment/original/%s.%s", URLbase, minAttachment.AccountID, newMediaID, extension)
smallURL := fmt.Sprintf("%s/%s/attachment/small/%s.jpeg", URLbase, minAttachment.AccountID, newMediaID) // all thumbnails/smalls are encoded as jpeg
// we store the original...
originalPath := fmt.Sprintf("%s/%s/%s/%s.%s", minAttachment.AccountID, Attachment, Original, newMediaID, extension)
if err := mh.storage.Put(originalPath, original.image); err != nil {
return nil, fmt.Errorf("storage error: %s", err)
}
// and a thumbnail...
smallPath := fmt.Sprintf("%s/%s/%s/%s.jpeg", minAttachment.AccountID, Attachment, Small, newMediaID) // all thumbnails/smalls are encoded as jpeg
if err := mh.storage.Put(smallPath, small.image); err != nil {
return nil, fmt.Errorf("storage error: %s", err)
}
minAttachment.FileMeta.Original = gtsmodel.Original{
Width: original.width,
Height: original.height,
Size: original.size,
Aspect: original.aspect,
}
minAttachment.FileMeta.Small = gtsmodel.Small{
Width: small.width,
Height: small.height,
Size: small.size,
Aspect: small.aspect,
}
attachment := >smodel.MediaAttachment{
ID: newMediaID,
StatusID: minAttachment.StatusID,
URL: originalURL,
RemoteURL: minAttachment.RemoteURL,
CreatedAt: minAttachment.CreatedAt,
UpdatedAt: minAttachment.UpdatedAt,
Type: gtsmodel.FileTypeImage,
FileMeta: minAttachment.FileMeta,
AccountID: minAttachment.AccountID,
Description: minAttachment.Description,
ScheduledStatusID: minAttachment.ScheduledStatusID,
Blurhash: small.blurhash,
Processing: 2,
File: gtsmodel.File{
Path: originalPath,
ContentType: contentType,
FileSize: len(original.image),
UpdatedAt: time.Now(),
},
Thumbnail: gtsmodel.Thumbnail{
Path: smallPath,
ContentType: MIMEJpeg, // all thumbnails/smalls are encoded as jpeg
FileSize: len(small.image),
UpdatedAt: time.Now(),
URL: smallURL,
RemoteURL: minAttachment.Thumbnail.RemoteURL,
},
Avatar: minAttachment.Avatar,
Header: minAttachment.Header,
}
return attachment, nil
}
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