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only allow writing to ~/.fgfs/Scenery/*.stg and ~/.fgfs/Export/*

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This commit is contained in:
mfranz 2008-06-16 06:32:32 +00:00
parent be7c7b0ad7
commit df018fff49
1 changed files with 12 additions and 10 deletions
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22
Nasal/io.nas
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@ -146,13 +146,11 @@ var writexml = func(path, node, indent = "\t", prefix = "___") {
#
_setlistener("/sim/signals/nasal-dir-initialized", func {
var _open = open;
var writable_dirs = [
# "", # any
# string.fixpath(getprop("/sim/fg-root")) ~ "/Scenery/",
string.fixpath(getprop("/sim/fg-home")) ~ "/",
"/tmp/", "/var/tmp/",
"[A-Za-z]:TMP/", "[A-Za-z]:TEMP/",
"[A-Za-z]:/TMP/", "[A-Za-z]:/TEMP/",
var fghome = string.fixpath(getprop("/sim/fg-home"));
var dirs = [ # pattern, allow(1)/deny(0)
[fghome ~ "/Scenery/*.stg", 1],
[fghome ~ "/Export/*", 1],
];
open = func(path, mode = "rb") {
@ -160,9 +158,13 @@ _setlistener("/sim/signals/nasal-dir-initialized", func {
return _open(path, mode);
var fpath = string.fixpath(path);
foreach(var p; writable_dirs)
if(string.match(fpath, p ~ '*'))
return _open(fpath, mode);
forindex(var i; dirs) {
if(string.match(fpath, dirs[i][0])) {
if(dirs[i][1])
return _open(fpath, mode);
break;
}
}
die("io.open(): writing to file '" ~ path ~ "' denied (unauthorized directory)\n ");
}