Blink-in-JS: Implement internal APIs exposed only to private scripts

Source/bindings/core/v8/V8DOMConfiguration.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 25 matching lines @@
 namespace blink {
 
 class V8DOMConfiguration {
 public:
     // The following Configuration structs and install methods are used for
     // setting multiple properties on an ObjectTemplate, used from the
     // generated bindings initialization (ConfigureXXXTemplate). This greatly
     // reduces the binary size by moving from code driven setup to data table
     // driven setup.
 
+    enum ExposeConfiguration {
+        ExposedToAllScripts,
+        OnlyExposedToPrivateScript,
+    };
+
     // AttributeConfiguration translates into calls to SetAccessor() on either
     // the instance or the prototype ObjectTemplate, based on |onPrototype|.
     struct AttributeConfiguration {
         const char* const name;
         v8::AccessorGetterCallback getter;
         v8::AccessorSetterCallback setter;
         v8::AccessorGetterCallback getterForMainWorld;
         v8::AccessorSetterCallback setterForMainWorld;
         const WrapperTypeInfo* data;
         v8::AccessControl settings;
         v8::PropertyAttribute attribute;
+        ExposeConfiguration exposeConfiguration;
         bool onPrototype;
     };
 
     // AccessorConfiguration translates into calls to SetAccessorProperty()
     // on prototype ObjectTemplate.
     struct AccessorConfiguration {
         const char* const name;
         v8::FunctionCallback getter;
         v8::FunctionCallback setter;
         v8::FunctionCallback getterForMainWorld;
         v8::FunctionCallback setterForMainWorld;
         const WrapperTypeInfo* data;
         v8::AccessControl settings;
         v8::PropertyAttribute attribute;
+        ExposeConfiguration exposeConfiguration;
     };
 
     static void installAttributes(v8::Handle<v8::ObjectTemplate>, v8::Handle<v8::ObjectTemplate>, const AttributeConfiguration*, size_t attributeCount, v8::Isolate*);
 
     template<class ObjectOrTemplate>
     static inline void installAttribute(v8::Handle<ObjectOrTemplate> instanceTemplate, v8::Handle<ObjectOrTemplate> prototype, const AttributeConfiguration& attribute, v8::Isolate* isolate)
     {
+        DOMWrapperWorld& world = DOMWrapperWorld::current(isolate);
+        if (attribute.exposeConfiguration == OnlyExposedToPrivateScript && !world.isPrivateScriptIsolatedWorld())
+            return;
+
         v8::AccessorGetterCallback getter = attribute.getter;
         v8::AccessorSetterCallback setter = attribute.setter;
-        if (DOMWrapperWorld::current(isolate).isMainWorld()) {
+        if (world.isMainWorld()) {
             if (attribute.getterForMainWorld)
                 getter = attribute.getterForMainWorld;
             if (attribute.setterForMainWorld)
                 setter = attribute.setterForMainWorld;
         }
         (attribute.onPrototype ? prototype : instanceTemplate)->SetAccessor(v8AtomicString(isolate, attribute.name),
             getter,
             setter,
             v8::External::New(isolate, const_cast<WrapperTypeInfo*>(attribute.data)),
             attribute.settings,
@@ skipping 24 matching lines @@
     static void installConstants(v8::Handle<v8::FunctionTemplate>, v8::Handle<v8::ObjectTemplate>, const ConstantConfiguration*, size_t constantCount, v8::Isolate*);
 
     // MethodConfiguration translates into calls to Set() for setting up an
     // object's callbacks. It sets the method on both the FunctionTemplate or
     // the ObjectTemplate.
     struct MethodConfiguration {
         const char* const name;
         v8::FunctionCallback callback;
         v8::FunctionCallback callbackForMainWorld;
         int length;
+        ExposeConfiguration exposeConfiguration;
     };
 
     static void installMethods(v8::Handle<v8::ObjectTemplate>, v8::Handle<v8::Signature>, v8::PropertyAttribute, const MethodConfiguration*, size_t callbackCount, v8::Isolate*);
 
     template<class ObjectOrTemplate>
     static void installMethodCustomSignature(v8::Handle<ObjectOrTemplate> instanceTemplate, v8::Handle<v8::Signature> signature, v8::PropertyAttribute attribute, const MethodConfiguration& configuration, v8::Isolate* isolate)
     {
         v8::FunctionCallback callback = configuration.callback;
         if (DOMWrapperWorld::current(isolate).isMainWorld() && configuration.callbackForMainWorld)
             callback = configuration.callbackForMainWorld;
         v8::Local<v8::FunctionTemplate> functionTemplate = v8::FunctionTemplate::New(isolate, callback, v8Undefined(), signature, configuration.length);
         instanceTemplate->Set(v8AtomicString(isolate, configuration.name), functionTemplate, attribute);
     }
 
     static void installAccessors(v8::Handle<v8::ObjectTemplate>, v8::Handle<v8::Signature>, const AccessorConfiguration*, size_t accessorCount, v8::Isolate*);
 
     static v8::Local<v8::Signature> installDOMClassTemplate(v8::Handle<v8::FunctionTemplate>, const char* interfaceName, v8::Handle<v8::FunctionTemplate> parentClass, size_t fieldCount,
         const AttributeConfiguration*, size_t attributeCount,
         const AccessorConfiguration*, size_t accessorCount,
         const MethodConfiguration*, size_t callbackCount,
         v8::Isolate*);
 
     static v8::Handle<v8::FunctionTemplate> domClassTemplate(v8::Isolate*, WrapperTypeInfo*, void (*)(v8::Handle<v8::FunctionTemplate>, v8::Isolate*));
 };
 
 } // namespace blink
 
 #endif // V8DOMConfiguration_h