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
createCallbackData(InjectedScriptManager * injectedScriptManager)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
removeCallbackData(InjectedScriptManager::CallbackData * callbackData)58 void InjectedScriptManager::removeCallbackData(InjectedScriptManager::CallbackData* callbackData)
59 {
60 ASSERT(m_callbackDataSet.contains(callbackData));
61 m_callbackDataSet.remove(callbackData);
62 }
63
createInjectedScriptHostV8Wrapper(PassRefPtrWillBeRawPtr<InjectedScriptHost> host,InjectedScriptManager * injectedScriptManager,v8::Handle<v8::Object> creationContext,v8::Isolate * isolate)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
createInjectedScript(const String & scriptSource,ScriptState * inspectedScriptState,int id)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
canAccessInspectedWindow(ScriptState * scriptState)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
setWeakCallback(const v8::WeakCallbackData<v8::Object,InjectedScriptManager::CallbackData> & data)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