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removelistener() must not remove path validation listeners

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mfranz 2008-12-12 14:57:38 +00:00
parent 748ad889d4
commit 117dac8b4f
1 changed files with 14 additions and 3 deletions
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17
Nasal/io.nas
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@ -302,9 +302,19 @@ _setlistener("/sim/signals/nasal-dir-initialized", func {
# validation listeners for load[xml]/save[xml]/parsexml() (see utils.cxx:fgValidatePath)
var n = props.globals.getNode("/sim/paths/validate", 1).remove();
_setlistener(n.getNode("read", 1)._g, read_validator);
_setlistener(n.getNode("write", 1)._g, write_validator);
var rval = _setlistener(n.getNode("read", 1)._g, read_validator);
var wval = _setlistener(n.getNode("write", 1)._g, write_validator);
# wrap removelistener
globals.removelistener = var remove_listener = (func {
var _removelistener = globals.removelistener;
func(n) {
if (n != rval and n != wval)
return _removelistener(n);
die("removelistener(): removal of protected listener #'" ~ n ~ "' denied (unauthorized access)\n ");
}
})();
# wrap io.open()
io.open = var io_open = (func {
@ -328,7 +338,8 @@ _setlistener("/sim/signals/nasal-dir-initialized", func {
func(fn, level = 0) {
var thisfunction = caller(0)[1];
if (fn != thislistener and fn != io_open and fn != thisfunction
and fn != read_validator and fn != write_validator)
and fn != read_validator and fn != write_validator
and fn != remove_listener)
return _closure(fn, level);
die("closure(): query denied (unauthorized access)\n ");