Do proper security checks when accessing elements with getOwnPropertyDescriptor.

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index a201851181a780deb897b69a7d238c1bef31479f..afc973b0b41abb11d49665b9954d45911d41a5d5 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -5323,7 +5323,8 @@ static bool IndexedAccessBlocker(Local<v8::Object> global,
                                  uint32_t key,
                                  v8::AccessType type,
                                  Local<Value> data) {
-  return Context::GetCurrent()->Global()->Equals(global);
+  return Context::GetCurrent()->Global()->Equals(global) ||
+      allowed_access_type[type];
 }
 
 
@@ -5390,6 +5391,18 @@ TEST(AccessControl) {
   Local<Value> getter = global0->Get(v8_str("getter"));
   Local<Value> setter = global0->Get(v8_str("setter"));
 
+  // And define normal element.
+  global0->Set(239, v8_str("239"));
+
+  // Define an element with JS getter and setter.
+  CompileRun(
+      "function el_getter() { return 'el_getter'; };\n"
+      "function el_setter() { return 'el_setter'; };\n"
+      "Object.defineProperty(this, '42', {get: el_getter, set: el_setter});");
+
+  Local<Value> el_getter = global0->Get(v8_str("el_getter"));
+  Local<Value> el_setter = global0->Get(v8_str("el_setter"));
+
   v8::HandleScope scope1;
 
   v8::Persistent<Context> context1 = Context::New();
@@ -5398,7 +5411,7 @@ TEST(AccessControl) {
   v8::Handle<v8::Object> global1 = context1->Global();
   global1->Set(v8_str("other"), global0);
 
-  // Access blocked property
+  // Access blocked property.
   CompileRun("other.blocked_prop = 1");
 
   ExpectUndefined("other.blocked_prop");
@@ -5416,6 +5429,23 @@ TEST(AccessControl) {
   ExpectTrue("propertyIsEnumerable.call(other, 'blocked_prop')");
   allowed_access_type[v8::ACCESS_HAS] = false;
 
+  // Access blocked element.
+  CompileRun("other[239] = 1");
+
+  ExpectUndefined("other[239]");
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '239')");
+  ExpectFalse("propertyIsEnumerable.call(other, '239')");
+
+  // Enable ACCESS_HAS
+  allowed_access_type[v8::ACCESS_HAS] = true;
+  ExpectUndefined("other[239]");
+  // ... and now we can get the descriptor...
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '239').value");
+  // ... and enumerate the property.
+  ExpectTrue("propertyIsEnumerable.call(other, '239')");
+  allowed_access_type[v8::ACCESS_HAS] = false;
+
+  // Access a property with JS accessor.
   CompileRun("other.js_accessor_p = 2");
 
   ExpectUndefined("other.js_accessor_p");
@@ -5480,6 +5510,58 @@ TEST(AccessControl) {
   allowed_access_type[v8::ACCESS_GET] = false;
   allowed_access_type[v8::ACCESS_HAS] = false;
 
+  // Access an element with JS accessor.
+  CompileRun("other[42] = 2");
+
+  ExpectUndefined("other[42]");
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42')");
+
+  // Enable ACCESS_HAS.
+  allowed_access_type[v8::ACCESS_HAS] = true;
+  ExpectUndefined("other[42]");
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').get");
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').set");
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').value");
+  allowed_access_type[v8::ACCESS_HAS] = false;
+
+  // Enable both ACCESS_HAS and ACCESS_GET.
+  allowed_access_type[v8::ACCESS_HAS] = true;
+  allowed_access_type[v8::ACCESS_GET] = true;
+
+  ExpectString("other[42]", "el_getter");
+  ExpectObject("Object.getOwnPropertyDescriptor(other, '42').get", el_getter);
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').set");
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').value");
+
+  allowed_access_type[v8::ACCESS_GET] = false;
+  allowed_access_type[v8::ACCESS_HAS] = false;
+
+  // Enable both ACCESS_HAS and ACCESS_SET.
+  allowed_access_type[v8::ACCESS_HAS] = true;
+  allowed_access_type[v8::ACCESS_SET] = true;
+
+  ExpectUndefined("other[42]");
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').get");
+  ExpectObject("Object.getOwnPropertyDescriptor(other, '42').set", el_setter);
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').value");
+
+  allowed_access_type[v8::ACCESS_SET] = false;
+  allowed_access_type[v8::ACCESS_HAS] = false;
+
+  // Enable both ACCESS_HAS, ACCESS_GET and ACCESS_SET.
+  allowed_access_type[v8::ACCESS_HAS] = true;
+  allowed_access_type[v8::ACCESS_GET] = true;
+  allowed_access_type[v8::ACCESS_SET] = true;
+
+  ExpectString("other[42]", "el_getter");
+  ExpectObject("Object.getOwnPropertyDescriptor(other, '42').get", el_getter);
+  ExpectObject("Object.getOwnPropertyDescriptor(other, '42').set", el_setter);
+  ExpectUndefined("Object.getOwnPropertyDescriptor(other, '42').value");
+
+  allowed_access_type[v8::ACCESS_SET] = false;
+  allowed_access_type[v8::ACCESS_GET] = false;
+  allowed_access_type[v8::ACCESS_HAS] = false;
+
   v8::Handle<Value> value;
 
   // Access accessible property