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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 processing
import (
"bytes"
"errors"
"fmt"
"io"
"mime/multipart"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/transport"
)
/*
HELPER FUNCTIONS
*/
// TODO: try to combine the below two functions because this is a lot of code repetition.
// updateAccountAvatar does the dirty work of checking the avatar part of an account update form,
// parsing and checking the image, and doing the necessary updates in the database for this to become
// the account's new avatar image.
func (p *processor) updateAccountAvatar(avatar *multipart.FileHeader, accountID string) (*gtsmodel.MediaAttachment, error) {
var err error
if int(avatar.Size) > p.config.MediaConfig.MaxImageSize {
err = fmt.Errorf("avatar with size %d exceeded max image size of %d bytes", avatar.Size, p.config.MediaConfig.MaxImageSize)
return nil, err
}
f, err := avatar.Open()
if err != nil {
return nil, fmt.Errorf("could not read provided avatar: %s", err)
}
// extract the bytes
buf := new(bytes.Buffer)
size, err := io.Copy(buf, f)
if err != nil {
return nil, fmt.Errorf("could not read provided avatar: %s", err)
}
if size == 0 {
return nil, errors.New("could not read provided avatar: size 0 bytes")
}
// do the setting
avatarInfo, err := p.mediaHandler.ProcessHeaderOrAvatar(buf.Bytes(), accountID, media.Avatar, "")
if err != nil {
return nil, fmt.Errorf("error processing avatar: %s", err)
}
return avatarInfo, f.Close()
}
// updateAccountHeader does the dirty work of checking the header part of an account update form,
// parsing and checking the image, and doing the necessary updates in the database for this to become
// the account's new header image.
func (p *processor) updateAccountHeader(header *multipart.FileHeader, accountID string) (*gtsmodel.MediaAttachment, error) {
var err error
if int(header.Size) > p.config.MediaConfig.MaxImageSize {
err = fmt.Errorf("header with size %d exceeded max image size of %d bytes", header.Size, p.config.MediaConfig.MaxImageSize)
return nil, err
}
f, err := header.Open()
if err != nil {
return nil, fmt.Errorf("could not read provided header: %s", err)
}
// extract the bytes
buf := new(bytes.Buffer)
size, err := io.Copy(buf, f)
if err != nil {
return nil, fmt.Errorf("could not read provided header: %s", err)
}
if size == 0 {
return nil, errors.New("could not read provided header: size 0 bytes")
}
// do the setting
headerInfo, err := p.mediaHandler.ProcessHeaderOrAvatar(buf.Bytes(), accountID, media.Header, "")
if err != nil {
return nil, fmt.Errorf("error processing header: %s", err)
}
return headerInfo, f.Close()
}
// fetchHeaderAndAviForAccount fetches the header and avatar for a remote account, using a transport
// on behalf of requestingUsername.
//
// targetAccount's AvatarMediaAttachmentID and HeaderMediaAttachmentID will be updated as necessary.
//
// SIDE EFFECTS: remote header and avatar will be stored in local storage, and the database will be updated
// to reflect the creation of these new attachments.
func (p *processor) fetchHeaderAndAviForAccount(targetAccount *gtsmodel.Account, t transport.Transport, refresh bool) error {
if targetAccount.AvatarRemoteURL != "" && (targetAccount.AvatarMediaAttachmentID == "" || refresh) {
a, err := p.mediaHandler.ProcessRemoteHeaderOrAvatar(t, >smodel.MediaAttachment{
RemoteURL: targetAccount.AvatarRemoteURL,
Avatar: true,
}, targetAccount.ID)
if err != nil {
return fmt.Errorf("error processing avatar for user: %s", err)
}
targetAccount.AvatarMediaAttachmentID = a.ID
}
if targetAccount.HeaderRemoteURL != "" && (targetAccount.HeaderMediaAttachmentID == "" || refresh) {
a, err := p.mediaHandler.ProcessRemoteHeaderOrAvatar(t, >smodel.MediaAttachment{
RemoteURL: targetAccount.HeaderRemoteURL,
Header: true,
}, targetAccount.ID)
if err != nil {
return fmt.Errorf("error processing header for user: %s", err)
}
targetAccount.HeaderMediaAttachmentID = a.ID
}
return nil
}
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