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/*
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 dereferencing
import (
"context"
"fmt"
"io"
"net/url"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/media"
)
func (d *deref) GetRemoteEmoji(ctx context.Context, requestingUsername string, remoteURL string, shortcode string, id string, emojiURI string, ai *media.AdditionalEmojiInfo, refresh bool) (*media.ProcessingEmoji, error) {
t, err := d.transportController.NewTransportForUsername(ctx, requestingUsername)
if err != nil {
return nil, fmt.Errorf("GetRemoteEmoji: error creating transport: %s", err)
}
derefURI, err := url.Parse(remoteURL)
if err != nil {
return nil, fmt.Errorf("GetRemoteEmoji: error parsing url: %s", err)
}
dataFunc := func(innerCtx context.Context) (io.Reader, int64, error) {
return t.DereferenceMedia(innerCtx, derefURI)
}
processingMedia, err := d.mediaManager.ProcessEmoji(ctx, dataFunc, nil, shortcode, id, emojiURI, ai, refresh)
if err != nil {
return nil, fmt.Errorf("GetRemoteEmoji: error processing emoji: %s", err)
}
return processingMedia, nil
}
func (d *deref) populateEmojis(ctx context.Context, rawEmojis []*gtsmodel.Emoji, requestingUsername string) ([]*gtsmodel.Emoji, error) {
// At this point we should know:
// * the AP uri of the emoji
// * the domain of the emoji
// * the shortcode of the emoji
// * the remote URL of the image
// This should be enough to dereference the emoji
gotEmojis := make([]*gtsmodel.Emoji, 0, len(rawEmojis))
for _, e := range rawEmojis {
var gotEmoji *gtsmodel.Emoji
var err error
// check if we've already got this emoji in the db
if gotEmoji, err = d.db.GetEmojiByShortcodeDomain(ctx, e.Shortcode, e.Domain); err != nil && err != db.ErrNoEntries {
log.Errorf("populateEmojis: error checking database for emoji %s: %s", e.URI, err)
continue
}
if gotEmoji != nil {
// we had the emoji in our database already; make sure the one we have is up to date
if (e.UpdatedAt.After(gotEmoji.ImageUpdatedAt)) || (e.URI != gotEmoji.URI) || (e.ImageRemoteURL != gotEmoji.ImageRemoteURL) {
emojiID := gotEmoji.ID // use existing ID
processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, emojiID, e.URI, &media.AdditionalEmojiInfo{
Domain: &e.Domain,
ImageRemoteURL: &e.ImageRemoteURL,
ImageStaticRemoteURL: &e.ImageRemoteURL,
Disabled: gotEmoji.Disabled,
VisibleInPicker: gotEmoji.VisibleInPicker,
}, true)
if err != nil {
log.Errorf("populateEmojis: couldn't refresh remote emoji %s: %s", e.URI, err)
continue
}
if gotEmoji, err = processingEmoji.LoadEmoji(ctx); err != nil {
log.Errorf("populateEmojis: couldn't load refreshed remote emoji %s: %s", e.URI, err)
continue
}
}
} else {
// it's new! go get it!
newEmojiID, err := id.NewRandomULID()
if err != nil {
log.Errorf("populateEmojis: error generating id for remote emoji %s: %s", e.URI, err)
continue
}
processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, newEmojiID, e.URI, &media.AdditionalEmojiInfo{
Domain: &e.Domain,
ImageRemoteURL: &e.ImageRemoteURL,
ImageStaticRemoteURL: &e.ImageRemoteURL,
Disabled: e.Disabled,
VisibleInPicker: e.VisibleInPicker,
}, false)
if err != nil {
log.Errorf("populateEmojis: couldn't get remote emoji %s: %s", e.URI, err)
continue
}
if gotEmoji, err = processingEmoji.LoadEmoji(ctx); err != nil {
log.Errorf("populateEmojis: couldn't load remote emoji %s: %s", e.URI, err)
continue
}
}
// if we get here, we either had the emoji already or we successfully fetched it
gotEmojis = append(gotEmojis, gotEmoji)
}
return gotEmojis, nil
}
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