| /* |
| * 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "core/inspector/InjectedScriptManager.h" |
| |
| #include "V8InjectedScriptHost.h" |
| #include "V8Window.h" |
| #include "bindings/v8/BindingSecurity.h" |
| #include "bindings/v8/ScriptDebugServer.h" |
| #include "bindings/v8/ScriptObject.h" |
| #include "bindings/v8/V8Binding.h" |
| #include "bindings/v8/V8ObjectConstructor.h" |
| #include "bindings/v8/V8ScriptRunner.h" |
| #include "core/inspector/InjectedScriptHost.h" |
| #include "core/frame/DOMWindow.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace WebCore { |
| |
| static v8::Local<v8::Object> createInjectedScriptHostV8Wrapper(InjectedScriptHost* host, v8::Isolate* isolate) |
| { |
| v8::Local<v8::Function> function = V8InjectedScriptHost::GetTemplate(isolate, MainWorld)->GetFunction(); |
| if (function.IsEmpty()) { |
| // Return if allocation failed. |
| return v8::Local<v8::Object>(); |
| } |
| v8::Local<v8::Object> instance = V8ObjectConstructor::newInstance(function); |
| if (instance.IsEmpty()) { |
| // Avoid setting the wrapper if allocation failed. |
| return v8::Local<v8::Object>(); |
| } |
| V8DOMWrapper::setNativeInfo(instance, &V8InjectedScriptHost::wrapperTypeInfo, host); |
| // Create a weak reference to the v8 wrapper of InspectorBackend to deref |
| // InspectorBackend when the wrapper is garbage collected. |
| host->ref(); |
| v8::Persistent<v8::Object> weakHandle(isolate, instance); |
| weakHandle.MakeWeak(host, &InjectedScriptManager::makeWeakCallback); |
| return instance; |
| } |
| |
| ScriptObject InjectedScriptManager::createInjectedScript(const String& scriptSource, ScriptState* inspectedScriptState, int id) |
| { |
| v8::Isolate* isolate = inspectedScriptState->isolate(); |
| v8::HandleScope handleScope(isolate); |
| |
| v8::Local<v8::Context> inspectedContext = inspectedScriptState->context(); |
| v8::Context::Scope contextScope(inspectedContext); |
| |
| // Call custom code to create InjectedScripHost wrapper specific for the context |
| // instead of calling toV8() that would create the |
| // wrapper in the current context. |
| // FIXME: make it possible to use generic bindings factory for InjectedScriptHost. |
| v8::Local<v8::Object> scriptHostWrapper = createInjectedScriptHostV8Wrapper(m_injectedScriptHost.get(), inspectedContext->GetIsolate()); |
| if (scriptHostWrapper.IsEmpty()) |
| return ScriptObject(); |
| |
| // Inject javascript into the context. The compiled script is supposed to evaluate into |
| // a single anonymous function(it's anonymous to avoid cluttering the global object with |
| // inspector's stuff) the function is called a few lines below with InjectedScriptHost wrapper, |
| // injected script id and explicit reference to the inspected global object. The function is expected |
| // to create and configure InjectedScript instance that is going to be used by the inspector. |
| v8::Local<v8::Value> value = V8ScriptRunner::compileAndRunInternalScript(v8String(scriptSource, isolate), isolate); |
| ASSERT(!value.IsEmpty()); |
| ASSERT(value->IsFunction()); |
| |
| v8::Local<v8::Object> windowGlobal = inspectedContext->Global(); |
| v8::Handle<v8::Value> info[] = { scriptHostWrapper, windowGlobal, v8::Number::New(inspectedContext->GetIsolate(), id) }; |
| v8::Local<v8::Value> injectedScriptValue = V8ScriptRunner::callInternalFunction(v8::Local<v8::Function>::Cast(value), windowGlobal, WTF_ARRAY_LENGTH(info), info, inspectedContext->GetIsolate()); |
| return ScriptObject(inspectedScriptState, v8::Handle<v8::Object>::Cast(injectedScriptValue)); |
| } |
| |
| bool InjectedScriptManager::canAccessInspectedWindow(ScriptState* scriptState) |
| { |
| v8::HandleScope handleScope(scriptState->isolate()); |
| v8::Local<v8::Context> context = scriptState->context(); |
| v8::Local<v8::Object> global = context->Global(); |
| if (global.IsEmpty()) |
| return false; |
| v8::Handle<v8::Object> holder = global->FindInstanceInPrototypeChain(V8Window::GetTemplate(context->GetIsolate(), MainWorld)); |
| if (holder.IsEmpty()) |
| holder = global->FindInstanceInPrototypeChain(V8Window::GetTemplate(context->GetIsolate(), IsolatedWorld)); |
| if (holder.IsEmpty()) |
| return false; |
| Frame* frame = V8Window::toNative(holder)->frame(); |
| |
| v8::Context::Scope contextScope(context); |
| return BindingSecurity::shouldAllowAccessToFrame(frame, DoNotReportSecurityError); |
| } |
| |
| void InjectedScriptManager::makeWeakCallback(v8::Isolate* isolate, v8::Persistent<v8::Object>* object, InjectedScriptHost* host) |
| { |
| host->deref(); |
| object->Dispose(); |
| } |
| |
| } // namespace WebCore |