1 files changed, 55 insertions, 0 deletions
diff --git a/internal/federation/dereferencing/media.go b/internal/federation/dereferencing/media.go
new file mode 100644
index 000000000..4d62fe0a6
--- /dev/null
+++ b/internal/federation/dereferencing/media.go
@@ -0,0 +1,55 @@
+/*
+   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"
+	"net/url"
+
+	"github.com/superseriousbusiness/gotosocial/internal/media"
+)
+
+func (d *deref) GetRemoteMedia(ctx context.Context, requestingUsername string, accountID string, remoteURL string) (*media.Media, error) {
+	if accountID == "" {
+		return nil, fmt.Errorf("RefreshAttachment: minAttachment account ID was empty")
+	}
+
+	t, err := d.transportController.NewTransportForUsername(ctx, requestingUsername)
+	if err != nil {
+		return nil, fmt.Errorf("RefreshAttachment: error creating transport: %s", err)
+	}
+
+	derefURI, err := url.Parse(remoteURL)
+	if err != nil {
+		return nil, err
+	}
+
+	data, err := t.DereferenceMedia(ctx, derefURI)
+	if err != nil {
+		return nil, fmt.Errorf("RefreshAttachment: error dereferencing media: %s", err)
+	}
+
+	m, err := d.mediaManager.ProcessMedia(ctx, data, accountID, remoteURL)
+	if err != nil {
+		return nil, fmt.Errorf("RefreshAttachment: error processing attachment: %s", err)
+	}
+
+	return m, nil
+}