1 /* 2 * Copyright (C) 2012 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "core/inspector/InjectedScriptManager.h" 33 34 #include "bindings/core/v8/BindingSecurity.h" 35 #include "bindings/core/v8/ScopedPersistent.h" 36 #include "bindings/core/v8/ScriptDebugServer.h" 37 #include "bindings/core/v8/ScriptValue.h" 38 #include "bindings/core/v8/V8Binding.h" 39 #include "bindings/core/v8/V8InjectedScriptHost.h" 40 #include "bindings/core/v8/V8ObjectConstructor.h" 41 #include "bindings/core/v8/V8ScriptRunner.h" 42 #include "bindings/core/v8/V8Window.h" 43 #include "core/frame/LocalDOMWindow.h" 44 #include "core/inspector/InjectedScriptHost.h" 45 #include "wtf/RefPtr.h" 46 47 namespace blink { 48 49 InjectedScriptManager::CallbackData* InjectedScriptManager::createCallbackData(InjectedScriptManager* injectedScriptManager) 50 { 51 OwnPtr<InjectedScriptManager::CallbackData> callbackData = adoptPtr(new InjectedScriptManager::CallbackData()); 52 InjectedScriptManager::CallbackData* callbackDataPtr = callbackData.get(); 53 callbackData->injectedScriptManager = injectedScriptManager; 54 m_callbackDataSet.add(callbackData.release()); 55 return callbackDataPtr; 56 } 57 58 void InjectedScriptManager::removeCallbackData(InjectedScriptManager::CallbackData* callbackData) 59 { 60 ASSERT(m_callbackDataSet.contains(callbackData)); 61 m_callbackDataSet.remove(callbackData); 62 } 63 64 static v8::Local<v8::Object> createInjectedScriptHostV8Wrapper(PassRefPtrWillBeRawPtr<InjectedScriptHost> host, InjectedScriptManager* injectedScriptManager, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) 65 { 66 ASSERT(host); 67 68 v8::Handle<v8::Object> wrapper = V8DOMWrapper::createWrapper(creationContext, &V8InjectedScriptHost::wrapperTypeInfo, host->toScriptWrappableBase(), isolate); 69 if (UNLIKELY(wrapper.IsEmpty())) 70 return wrapper; 71 72 // Create a weak reference to the v8 wrapper of InspectorBackend to deref 73 // InspectorBackend when the wrapper is garbage collected. 74 InjectedScriptManager::CallbackData* callbackData = injectedScriptManager->createCallbackData(injectedScriptManager); 75 #if ENABLE(OILPAN) 76 callbackData->hostPtr = WrapperPersistent<InjectedScriptHost>::create(host.get()); 77 #else 78 callbackData->host = host.get(); 79 #endif 80 callbackData->handle.set(isolate, wrapper); 81 callbackData->handle.setWeak(callbackData, &InjectedScriptManager::setWeakCallback); 82 83 #if ENABLE(OILPAN) 84 V8DOMWrapper::setNativeInfoWithPersistentHandle(wrapper, &V8InjectedScriptHost::wrapperTypeInfo, host->toScriptWrappableBase(), callbackData->hostPtr); 85 #else 86 V8DOMWrapper::setNativeInfo(wrapper, &V8InjectedScriptHost::wrapperTypeInfo, host->toScriptWrappableBase()); 87 #endif 88 ASSERT(V8DOMWrapper::isDOMWrapper(wrapper)); 89 return wrapper; 90 } 91 92 ScriptValue InjectedScriptManager::createInjectedScript(const String& scriptSource, ScriptState* inspectedScriptState, int id) 93 { 94 v8::Isolate* isolate = inspectedScriptState->isolate(); 95 ScriptState::Scope scope(inspectedScriptState); 96 97 // Call custom code to create InjectedScripHost wrapper specific for the context 98 // instead of calling toV8() that would create the 99 // wrapper in the current context. 100 // FIXME: make it possible to use generic bindings factory for InjectedScriptHost. 101 v8::Local<v8::Object> scriptHostWrapper = createInjectedScriptHostV8Wrapper(m_injectedScriptHost, this, inspectedScriptState->context()->Global(), inspectedScriptState->isolate()); 102 if (scriptHostWrapper.IsEmpty()) 103 return ScriptValue(); 104 105 // Inject javascript into the context. The compiled script is supposed to evaluate into 106 // a single anonymous function(it's anonymous to avoid cluttering the global object with 107 // inspector's stuff) the function is called a few lines below with InjectedScriptHost wrapper, 108 // injected script id and explicit reference to the inspected global object. The function is expected 109 // to create and configure InjectedScript instance that is going to be used by the inspector. 110 v8::Local<v8::Value> value = V8ScriptRunner::compileAndRunInternalScript(v8String(isolate, scriptSource), isolate); 111 ASSERT(!value.IsEmpty()); 112 ASSERT(value->IsFunction()); 113 114 v8::Local<v8::Object> windowGlobal = inspectedScriptState->context()->Global(); 115 v8::Handle<v8::Value> info[] = { scriptHostWrapper, windowGlobal, v8::Number::New(inspectedScriptState->isolate(), id) }; 116 v8::Local<v8::Value> injectedScriptValue = V8ScriptRunner::callInternalFunction(v8::Local<v8::Function>::Cast(value), windowGlobal, WTF_ARRAY_LENGTH(info), info, inspectedScriptState->isolate()); 117 return ScriptValue(inspectedScriptState, injectedScriptValue); 118 } 119 120 bool InjectedScriptManager::canAccessInspectedWindow(ScriptState* scriptState) 121 { 122 ScriptState::Scope scope(scriptState); 123 v8::Local<v8::Object> global = scriptState->context()->Global(); 124 if (global.IsEmpty()) 125 return false; 126 v8::Handle<v8::Object> holder = V8Window::findInstanceInPrototypeChain(global, scriptState->isolate()); 127 if (holder.IsEmpty()) 128 return false; 129 LocalFrame* frame = V8Window::toImpl(holder)->frame(); 130 131 return BindingSecurity::shouldAllowAccessToFrame(scriptState->isolate(), frame, DoNotReportSecurityError); 132 } 133 134 void InjectedScriptManager::setWeakCallback(const v8::WeakCallbackData<v8::Object, InjectedScriptManager::CallbackData>& data) 135 { 136 InjectedScriptManager::CallbackData* callbackData = data.GetParameter(); 137 callbackData->injectedScriptManager->removeCallbackData(callbackData); 138 } 139 140 } // namespace blink 141
