mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
6f8b0e9bb0
include/ruby/io.h, include/ruby/ruby.h, include/ruby/win32.h, include/ruby/backward/rubysig.h, bignum.c, gc.c, io.c, process.c, safe.c, struct.c, thread.c, ext/socket/rubysocket.h, ext/-test-/old_thread_select: Remove deprecated definitions [ruby-core:60581] [Feature #9502] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44955 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
133 lines
2.4 KiB
C
133 lines
2.4 KiB
C
/**********************************************************************
|
|
|
|
safe.c -
|
|
|
|
$Author$
|
|
created at: Tue Sep 23 09:44:32 JST 2008
|
|
|
|
Copyright (C) 2008 Yukihiro Matsumoto
|
|
|
|
**********************************************************************/
|
|
|
|
/* safe-level:
|
|
0 - strings from streams/environment/ARGV are tainted (default)
|
|
1 - no dangerous operation by tainted value
|
|
2 - process/file operations prohibited
|
|
3 - all generated objects are tainted
|
|
*/
|
|
|
|
#define SAFE_LEVEL_MAX RUBY_SAFE_LEVEL_MAX
|
|
|
|
#include "ruby/ruby.h"
|
|
#include "vm_core.h"
|
|
|
|
/* $SAFE accessor */
|
|
|
|
#undef rb_secure
|
|
#undef rb_set_safe_level
|
|
#undef ruby_safe_level_4_warning
|
|
|
|
int
|
|
ruby_safe_level_4_warning(void)
|
|
{
|
|
return 4;
|
|
}
|
|
|
|
int
|
|
rb_safe_level(void)
|
|
{
|
|
return GET_THREAD()->safe_level;
|
|
}
|
|
|
|
void
|
|
rb_set_safe_level_force(int safe)
|
|
{
|
|
GET_THREAD()->safe_level = safe;
|
|
}
|
|
|
|
void
|
|
rb_set_safe_level(int level)
|
|
{
|
|
rb_thread_t *th = GET_THREAD();
|
|
|
|
if (level > th->safe_level) {
|
|
if (level > SAFE_LEVEL_MAX) {
|
|
rb_raise(rb_eArgError, "$SAFE=4 is obsolete");
|
|
}
|
|
th->safe_level = level;
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
safe_getter(void)
|
|
{
|
|
return INT2NUM(rb_safe_level());
|
|
}
|
|
|
|
static void
|
|
safe_setter(VALUE val)
|
|
{
|
|
int level = NUM2INT(val);
|
|
rb_thread_t *th = GET_THREAD();
|
|
|
|
if (level < th->safe_level) {
|
|
rb_raise(rb_eSecurityError,
|
|
"tried to downgrade safe level from %d to %d",
|
|
th->safe_level, level);
|
|
}
|
|
if (level == 3) {
|
|
rb_warning("$SAFE=3 does no sandboxing");
|
|
}
|
|
if (level > SAFE_LEVEL_MAX) {
|
|
rb_raise(rb_eArgError, "$SAFE=4 is obsolete");
|
|
}
|
|
th->safe_level = level;
|
|
}
|
|
|
|
void
|
|
rb_secure(int level)
|
|
{
|
|
if (level <= rb_safe_level()) {
|
|
ID caller_name = rb_frame_callee();
|
|
if (caller_name) {
|
|
rb_raise(rb_eSecurityError, "Insecure operation `%s' at level %d",
|
|
rb_id2name(caller_name), rb_safe_level());
|
|
}
|
|
else {
|
|
rb_raise(rb_eSecurityError, "Insecure operation at level %d",
|
|
rb_safe_level());
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_secure_update(VALUE obj)
|
|
{
|
|
}
|
|
|
|
void
|
|
rb_insecure_operation(void)
|
|
{
|
|
ID caller_name = rb_frame_callee();
|
|
if (caller_name) {
|
|
rb_raise(rb_eSecurityError, "Insecure operation - %s",
|
|
rb_id2name(caller_name));
|
|
}
|
|
else {
|
|
rb_raise(rb_eSecurityError, "Insecure operation: -r");
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_check_safe_obj(VALUE x)
|
|
{
|
|
if (rb_safe_level() > 0 && OBJ_TAINTED(x)) {
|
|
rb_insecure_operation();
|
|
}
|
|
}
|
|
|
|
void
|
|
Init_safe(void)
|
|
{
|
|
rb_define_virtual_variable("$SAFE", safe_getter, safe_setter);
|
|
}
|