1 files changed, 91 insertions, 0 deletions
diff --git a/js/xpconnect/wrappers/FilteringWrapper.h b/js/xpconnect/wrappers/FilteringWrapper.h
new file mode 100644
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+++ b/js/xpconnect/wrappers/FilteringWrapper.h
@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=4 et sw=4 tw=99: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __FilteringWrapper_h__
+#define __FilteringWrapper_h__
+
+#include "XrayWrapper.h"
+#include "mozilla/Attributes.h"
+#include "jswrapper.h"
+#include "js/CallNonGenericMethod.h"
+
+namespace JS {
+class AutoIdVector;
+} // namespace JS
+
+namespace xpc {
+
+template <typename Base, typename Policy>
+class FilteringWrapper : public Base {
+  public:
+    constexpr explicit FilteringWrapper(unsigned flags) : Base(flags) {}
+
+    virtual bool enter(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<jsid> id,
+                       js::Wrapper::Action act, bool* bp) const override;
+
+    virtual bool getOwnPropertyDescriptor(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                          JS::Handle<jsid> id,
+                                          JS::MutableHandle<JS::PropertyDescriptor> desc) const override;
+    virtual bool ownPropertyKeys(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                 JS::AutoIdVector& props) const override;
+
+    virtual bool getPropertyDescriptor(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                       JS::Handle<jsid> id,
+                                       JS::MutableHandle<JS::PropertyDescriptor> desc) const override;
+    virtual bool getOwnEnumerablePropertyKeys(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                              JS::AutoIdVector& props) const override;
+    virtual bool enumerate(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                           JS::MutableHandle<JSObject*> objp) const override;
+
+    virtual bool call(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                      const JS::CallArgs& args) const override;
+    virtual bool construct(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                           const JS::CallArgs& args) const override;
+
+    virtual bool nativeCall(JSContext* cx, JS::IsAcceptableThis test, JS::NativeImpl impl,
+                            const JS::CallArgs& args) const override;
+
+    virtual bool getPrototype(JSContext* cx, JS::HandleObject wrapper,
+                              JS::MutableHandleObject protop) const override;
+
+    static const FilteringWrapper singleton;
+};
+
+/*
+ * The HTML5 spec mandates very particular object behavior for cross-origin DOM
+ * objects (Window and Location), some of which runs contrary to the way that
+ * other XrayWrappers behave. We use this class to implement those semantics.
+ */
+class CrossOriginXrayWrapper : public SecurityXrayDOM {
+  public:
+    constexpr explicit CrossOriginXrayWrapper(unsigned flags) :
+      SecurityXrayDOM(flags) {}
+
+
+    virtual bool getOwnPropertyDescriptor(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                          JS::Handle<jsid> id,
+                                          JS::MutableHandle<JS::PropertyDescriptor> desc) const override;
+    virtual bool defineProperty(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                JS::Handle<jsid> id,
+                                JS::Handle<JS::PropertyDescriptor> desc,
+                                JS::ObjectOpResult& result) const override;
+    virtual bool ownPropertyKeys(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                 JS::AutoIdVector& props) const override;
+    virtual bool delete_(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                         JS::Handle<jsid> id, JS::ObjectOpResult& result) const override;
+
+    virtual bool getPropertyDescriptor(JSContext* cx, JS::Handle<JSObject*> wrapper,
+                                       JS::Handle<jsid> id,
+                                       JS::MutableHandle<JS::PropertyDescriptor> desc) const override;
+};
+
+// Check whether the given jsid is a symbol whose value can be gotten
+// cross-origin.  Cross-origin gets always return undefined as the value.
+bool IsCrossOriginWhitelistedSymbol(JSContext* cx, JS::HandleId id);
+
+} // namespace xpc
+
+#endif /* __FilteringWrapper_h__ */