Add GetFilePreview method to Peer

client/peer.go

@@ -292,6 +292,10 @@ func (p *Peer) StoreMessage(msg *meowlib.UserMessage, filenames []string) error
 	return StoreMessage(p, msg, filenames, p.GetDbPassword())
 }
 
+func (p *Peer) GetFilePreview(filename string) ([]byte, error) {
+	return FilePreview(filename, p.GetDbPassword())
+}
+
 func (p *Peer) UpdateMessage(msg InternalUserMessage) error {
 	return nil
 }