Make rsync daemon read only when mirroring

src/freedombone-app-rsync

@@ -66,6 +66,9 @@ function rsync_setting_remote {
         return
     fi
 
+    sed -i 's|read only =.*|read only = true|g' /etc/rsync/rsyncd.conf
+    systemctl restart rsync
+
     { echo '#!/bin/bash';
       echo "cd $RSYNC_DATA || exit 1";
       echo "if torsocks rsync -aqrm --delete ${rsync_hostname}::${rsync_module}/ $RSYNC_DATA; then";