diff options
| -rw-r--r-- | src/teliva.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/teliva.c b/src/teliva.c index 04c1ba6..c5cdac3 100644 --- a/src/teliva.c +++ b/src/teliva.c @@ -34,6 +34,13 @@ int any_equal(char* const* arr, const char* s) { return 0; } +int any_starts_with(char* const* arr, const char* s) { + for (int i = 0; arr[i]; ++i) + if (starts_with(s, arr[i])) + return 1; + return 0; +} + /*** Standard UI elements */ int menu_column = 0; @@ -1323,8 +1330,15 @@ static int isarg(lua_State* trustedL) { return 1; } +static int inarg(lua_State* trustedL) { + const char* arg = luaL_checkstring(trustedL, -1); + lua_pushboolean(trustedL, any_starts_with(Argv, arg)); + return 1; +} + static const luaL_Reg trusted_base_funcs[] = { {"isarg", isarg}, + {"inarg", inarg}, }; void initialize_trustedL() { @@ -1625,7 +1639,8 @@ void print_file_permission_suggestions(int row) { mvaddstr(row++, 0, "-- * restrict to files with a fixed prefix: return string.find(filename, 'foo') == 1"); mvaddstr(row++, 0, "-- * restrict to files with a fixed extension: return filename:sub(-4) == '.txt'"); mvaddstr(row++, 0, "-- * restrict to files under some directory: return string.find(filename, 'foo/') == 1"); - mvaddstr(row++, 0, "-- * restrict access only to commandline args: return inargs(filename)"); + mvaddstr(row++, 0, "-- * restrict access only to files specified on commandline: return isarg(filename)"); + mvaddstr(row++, 0, "-- * restrict access only to paths under directories specified on commandline: return inargs(filename)"); mvaddstr(row++, 0, "--"); mvaddstr(row++, 0, "-- Each of these has benefits and drawbacks."); } |