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/*
* 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.
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* 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 "src/inspector/injected-script.h"
#include "src/inspector/injected-script-native.h"
#include "src/inspector/injected-script-source.h"
#include "src/inspector/inspected-context.h"
#include "src/inspector/protocol/Protocol.h"
#include "src/inspector/remote-object-id.h"
#include "src/inspector/string-util.h"
#include "src/inspector/v8-console.h"
#include "src/inspector/v8-function-call.h"
#include "src/inspector/v8-injected-script-host.h"
#include "src/inspector/v8-inspector-impl.h"
#include "src/inspector/v8-inspector-session-impl.h"
#include "src/inspector/v8-stack-trace-impl.h"
#include "src/inspector/v8-value-copier.h"
#include "include/v8-inspector.h"
namespace v8_inspector {
using protocol::Array;
using protocol::Runtime::PropertyDescriptor;
using protocol::Runtime::InternalPropertyDescriptor;
using protocol::Runtime::RemoteObject;
using protocol::Maybe;
std::unique_ptr<InjectedScript> InjectedScript::create(
InspectedContext* inspectedContext) {
v8::Isolate* isolate = inspectedContext->isolate();
v8::HandleScope handles(isolate);
v8::Local<v8::Context> context = inspectedContext->context();
v8::Context::Scope scope(context);
std::unique_ptr<InjectedScriptNative> injectedScriptNative(
new InjectedScriptNative(isolate));
v8::Local<v8::Object> scriptHostWrapper =
V8InjectedScriptHost::create(context, inspectedContext->inspector());
injectedScriptNative->setOnInjectedScriptHost(scriptHostWrapper);
// 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.
String16 injectedScriptSource(
reinterpret_cast<const char*>(InjectedScriptSource_js),
sizeof(InjectedScriptSource_js));
v8::Local<v8::Value> value;
if (!inspectedContext->inspector()
->compileAndRunInternalScript(
context, toV8String(isolate, injectedScriptSource))
.ToLocal(&value))
return nullptr;
DCHECK(value->IsFunction());
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(value);
v8::Local<v8::Object> windowGlobal = context->Global();
v8::Local<v8::Value> info[] = {
scriptHostWrapper, windowGlobal,
v8::Number::New(isolate, inspectedContext->contextId())};
v8::MicrotasksScope microtasksScope(isolate,
v8::MicrotasksScope::kDoNotRunMicrotasks);
int contextGroupId = inspectedContext->contextGroupId();
int contextId = inspectedContext->contextId();
V8InspectorImpl* inspector = inspectedContext->inspector();
v8::Local<v8::Value> injectedScriptValue;
if (!function->Call(context, windowGlobal, arraysize(info), info)
.ToLocal(&injectedScriptValue))
return nullptr;
if (inspector->getContext(contextGroupId, contextId) != inspectedContext)
return nullptr;
if (!injectedScriptValue->IsObject()) return nullptr;
return std::unique_ptr<InjectedScript>(
new InjectedScript(inspectedContext, injectedScriptValue.As<v8::Object>(),
std::move(injectedScriptNative)));
}
InjectedScript::InjectedScript(
InspectedContext* context, v8::Local<v8::Object> object,
std::unique_ptr<InjectedScriptNative> injectedScriptNative)
: m_context(context),
m_value(context->isolate(), object),
m_native(std::move(injectedScriptNative)) {}
InjectedScript::~InjectedScript() {}
Response InjectedScript::getProperties(
v8::Local<v8::Object> object, const String16& groupName, bool ownProperties,
bool accessorPropertiesOnly, bool generatePreview,
std::unique_ptr<Array<PropertyDescriptor>>* properties,
Maybe<protocol::Runtime::ExceptionDetails>* exceptionDetails) {
v8::HandleScope handles(m_context->isolate());
v8::Local<v8::Context> context = m_context->context();
V8FunctionCall function(m_context->inspector(), m_context->context(),
v8Value(), "getProperties");
function.appendArgument(object);
function.appendArgument(groupName);
function.appendArgument(ownProperties);
function.appendArgument(accessorPropertiesOnly);
function.appendArgument(generatePreview);
v8::TryCatch tryCatch(m_context->isolate());
v8::Local<v8::Value> resultValue = function.callWithoutExceptionHandling();
if (tryCatch.HasCaught()) {
Response response = createExceptionDetails(
tryCatch, groupName, generatePreview, exceptionDetails);
if (!response.isSuccess()) return response;
// FIXME: make properties optional
*properties = Array<PropertyDescriptor>::create();
return Response::OK();
}
if (resultValue.IsEmpty()) return Response::InternalError();
std::unique_ptr<protocol::Value> protocolValue;
Response response = toProtocolValue(context, resultValue, &protocolValue);
if (!response.isSuccess()) return response;
protocol::ErrorSupport errors;
std::unique_ptr<Array<PropertyDescriptor>> result =
Array<PropertyDescriptor>::fromValue(protocolValue.get(), &errors);
if (errors.hasErrors()) return Response::Error(errors.errors());
*properties = std::move(result);
return Response::OK();
}
void InjectedScript::releaseObject(const String16& objectId) {
std::unique_ptr<protocol::Value> parsedObjectId =
protocol::StringUtil::parseJSON(objectId);
if (!parsedObjectId) return;
protocol::DictionaryValue* object =
protocol::DictionaryValue::cast(parsedObjectId.get());
if (!object) return;
int boundId = 0;
if (!object->getInteger("id", &boundId)) return;
m_native->unbind(boundId);
}
Response InjectedScript::wrapObject(
v8::Local<v8::Value> value, const String16& groupName, bool forceValueType,
bool generatePreview,
std::unique_ptr<protocol::Runtime::RemoteObject>* result) const {
v8::HandleScope handles(m_context->isolate());
v8::Local<v8::Value> wrappedObject;
v8::Local<v8::Context> context = m_context->context();
Response response = wrapValue(value, groupName, forceValueType,
generatePreview, &wrappedObject);
if (!response.isSuccess()) return response;
protocol::ErrorSupport errors;
std::unique_ptr<protocol::Value> protocolValue;
response = toProtocolValue(context, wrappedObject, &protocolValue);
if (!response.isSuccess()) return response;
*result =
protocol::Runtime::RemoteObject::fromValue(protocolValue.get(), &errors);
if (!result->get()) return Response::Error(errors.errors());
return Response::OK();
}
Response InjectedScript::wrapObjectProperty(v8::Local<v8::Object> object,
v8::Local<v8::Name> key,
const String16& groupName,
bool forceValueType,
bool generatePreview) const {
v8::Local<v8::Value> property;
v8::Local<v8::Context> context = m_context->context();
if (!object->Get(context, key).ToLocal(&property))
return Response::InternalError();
v8::Local<v8::Value> wrappedProperty;
Response response = wrapValue(property, groupName, forceValueType,
generatePreview, &wrappedProperty);
if (!response.isSuccess()) return response;
v8::Maybe<bool> success =
createDataProperty(context, object, key, wrappedProperty);
if (success.IsNothing() || !success.FromJust())
return Response::InternalError();
return Response::OK();
}
Response InjectedScript::wrapPropertyInArray(v8::Local<v8::Array> array,
v8::Local<v8::String> property,
const String16& groupName,
bool forceValueType,
bool generatePreview) const {
V8FunctionCall function(m_context->inspector(), m_context->context(),
v8Value(), "wrapPropertyInArray");
function.appendArgument(array);
function.appendArgument(property);
function.appendArgument(groupName);
function.appendArgument(forceValueType);
function.appendArgument(generatePreview);
bool hadException = false;
function.call(hadException);
return hadException ? Response::InternalError() : Response::OK();
}
Response InjectedScript::wrapValue(v8::Local<v8::Value> value,
const String16& groupName,
bool forceValueType, bool generatePreview,
v8::Local<v8::Value>* result) const {
V8FunctionCall function(m_context->inspector(), m_context->context(),
v8Value(), "wrapObject");
function.appendArgument(value);
function.appendArgument(groupName);
function.appendArgument(forceValueType);
function.appendArgument(generatePreview);
bool hadException = false;
*result = function.call(hadException);
if (hadException || result->IsEmpty()) return Response::InternalError();
return Response::OK();
}
std::unique_ptr<protocol::Runtime::RemoteObject> InjectedScript::wrapTable(
v8::Local<v8::Value> table, v8::Local<v8::Value> columns) const {
v8::HandleScope handles(m_context->isolate());
v8::Local<v8::Context> context = m_context->context();
V8FunctionCall function(m_context->inspector(), context, v8Value(),
"wrapTable");
function.appendArgument(table);
if (columns.IsEmpty())
function.appendArgument(false);
else
function.appendArgument(columns);
bool hadException = false;
v8::Local<v8::Value> r = function.call(hadException);
if (hadException || r.IsEmpty()) return nullptr;
std::unique_ptr<protocol::Value> protocolValue;
Response response = toProtocolValue(context, r, &protocolValue);
if (!response.isSuccess()) return nullptr;
protocol::ErrorSupport errors;
return protocol::Runtime::RemoteObject::fromValue(protocolValue.get(),
&errors);
}
Response InjectedScript::findObject(const RemoteObjectId& objectId,
v8::Local<v8::Value>* outObject) const {
*outObject = m_native->objectForId(objectId.id());
if (outObject->IsEmpty())
return Response::Error("Could not find object with given id");
return Response::OK();
}
String16 InjectedScript::objectGroupName(const RemoteObjectId& objectId) const {
return m_native->groupName(objectId.id());
}
void InjectedScript::releaseObjectGroup(const String16& objectGroup) {
m_native->releaseObjectGroup(objectGroup);
if (objectGroup == "console") m_lastEvaluationResult.Reset();
}
void InjectedScript::setCustomObjectFormatterEnabled(bool enabled) {
v8::HandleScope handles(m_context->isolate());
V8FunctionCall function(m_context->inspector(), m_context->context(),
v8Value(), "setCustomObjectFormatterEnabled");
function.appendArgument(enabled);
bool hadException = false;
function.call(hadException);
DCHECK(!hadException);
}
v8::Local<v8::Value> InjectedScript::v8Value() const {
return m_value.Get(m_context->isolate());
}
v8::Local<v8::Value> InjectedScript::lastEvaluationResult() const {
if (m_lastEvaluationResult.IsEmpty())
return v8::Undefined(m_context->isolate());
return m_lastEvaluationResult.Get(m_context->isolate());
}
Response InjectedScript::resolveCallArgument(
protocol::Runtime::CallArgument* callArgument,
v8::Local<v8::Value>* result) {
if (callArgument->hasObjectId()) {
std::unique_ptr<RemoteObjectId> remoteObjectId;
Response response =
RemoteObjectId::parse(callArgument->getObjectId(""), &remoteObjectId);
if (!response.isSuccess()) return response;
if (remoteObjectId->contextId() != m_context->contextId())
return Response::Error(
"Argument should belong to the same JavaScript world as target "
"object");
return findObject(*remoteObjectId, result);
}
if (callArgument->hasValue() || callArgument->hasUnserializableValue()) {
String16 value =
callArgument->hasValue()
? callArgument->getValue(nullptr)->serialize()
: "Number(\"" + callArgument->getUnserializableValue("") + "\")";
if (!m_context->inspector()
->compileAndRunInternalScript(
m_context->context(), toV8String(m_context->isolate(), value))
.ToLocal(result)) {
return Response::Error("Couldn't parse value object in call argument");
}
return Response::OK();
}
*result = v8::Undefined(m_context->isolate());
return Response::OK();
}
Response InjectedScript::createExceptionDetails(
const v8::TryCatch& tryCatch, const String16& objectGroup,
bool generatePreview, Maybe<protocol::Runtime::ExceptionDetails>* result) {
if (!tryCatch.HasCaught()) return Response::InternalError();
v8::Local<v8::Message> message = tryCatch.Message();
v8::Local<v8::Value> exception = tryCatch.Exception();
String16 messageText =
message.IsEmpty() ? String16() : toProtocolString(message->Get());
std::unique_ptr<protocol::Runtime::ExceptionDetails> exceptionDetails =
protocol::Runtime::ExceptionDetails::create()
.setExceptionId(m_context->inspector()->nextExceptionId())
.setText(exception.IsEmpty() ? messageText : String16("Uncaught"))
.setLineNumber(
message.IsEmpty()
? 0
: message->GetLineNumber(m_context->context()).FromMaybe(1) -
1)
.setColumnNumber(
message.IsEmpty()
? 0
: message->GetStartColumn(m_context->context()).FromMaybe(0))
.build();
if (!message.IsEmpty()) {
exceptionDetails->setScriptId(String16::fromInteger(
static_cast<int>(message->GetScriptOrigin().ScriptID()->Value())));
v8::Local<v8::StackTrace> stackTrace = message->GetStackTrace();
if (!stackTrace.IsEmpty() && stackTrace->GetFrameCount() > 0)
exceptionDetails->setStackTrace(m_context->inspector()
->debugger()
->createStackTrace(stackTrace)
->buildInspectorObjectImpl());
}
if (!exception.IsEmpty()) {
std::unique_ptr<protocol::Runtime::RemoteObject> wrapped;
Response response =
wrapObject(exception, objectGroup, false /* forceValueType */,
generatePreview && !exception->IsNativeError(), &wrapped);
if (!response.isSuccess()) return response;
exceptionDetails->setException(std::move(wrapped));
}
*result = std::move(exceptionDetails);
return Response::OK();
}
Response InjectedScript::wrapEvaluateResult(
v8::MaybeLocal<v8::Value> maybeResultValue, const v8::TryCatch& tryCatch,
const String16& objectGroup, bool returnByValue, bool generatePreview,
std::unique_ptr<protocol::Runtime::RemoteObject>* result,
Maybe<protocol::Runtime::ExceptionDetails>* exceptionDetails) {
v8::Local<v8::Value> resultValue;
if (!tryCatch.HasCaught()) {
if (!maybeResultValue.ToLocal(&resultValue))
return Response::InternalError();
Response response = wrapObject(resultValue, objectGroup, returnByValue,
generatePreview, result);
if (!response.isSuccess()) return response;
if (objectGroup == "console")
m_lastEvaluationResult.Reset(m_context->isolate(), resultValue);
} else {
v8::Local<v8::Value> exception = tryCatch.Exception();
Response response =
wrapObject(exception, objectGroup, false,
generatePreview && !exception->IsNativeError(), result);
if (!response.isSuccess()) return response;
// We send exception in result for compatibility reasons, even though it's
// accessible through exceptionDetails.exception.
response = createExceptionDetails(tryCatch, objectGroup, generatePreview,
exceptionDetails);
if (!response.isSuccess()) return response;
}
return Response::OK();
}
v8::Local<v8::Object> InjectedScript::commandLineAPI() {
if (m_commandLineAPI.IsEmpty())
m_commandLineAPI.Reset(m_context->isolate(),
V8Console::createCommandLineAPI(m_context));
return m_commandLineAPI.Get(m_context->isolate());
}
InjectedScript::Scope::Scope(V8InspectorImpl* inspector, int contextGroupId)
: m_inspector(inspector),
m_contextGroupId(contextGroupId),
m_injectedScript(nullptr),
m_handleScope(inspector->isolate()),
m_tryCatch(inspector->isolate()),
m_ignoreExceptionsAndMuteConsole(false),
m_previousPauseOnExceptionsState(v8::debug::NoBreakOnException),
m_userGesture(false) {}
Response InjectedScript::Scope::initialize() {
cleanup();
// TODO(dgozman): what if we reattach to the same context group during
// evaluate? Introduce a session id?
V8InspectorSessionImpl* session =
m_inspector->sessionForContextGroup(m_contextGroupId);
if (!session) return Response::InternalError();
Response response = findInjectedScript(session);
if (!response.isSuccess()) return response;
m_context = m_injectedScript->context()->context();
m_context->Enter();
return Response::OK();
}
void InjectedScript::Scope::installCommandLineAPI() {
DCHECK(m_injectedScript && !m_context.IsEmpty() &&
!m_commandLineAPIScope.get());
m_commandLineAPIScope.reset(new V8Console::CommandLineAPIScope(
m_context, m_injectedScript->commandLineAPI(), m_context->Global()));
}
void InjectedScript::Scope::ignoreExceptionsAndMuteConsole() {
DCHECK(!m_ignoreExceptionsAndMuteConsole);
m_ignoreExceptionsAndMuteConsole = true;
m_inspector->client()->muteMetrics(m_contextGroupId);
m_inspector->muteExceptions(m_contextGroupId);
m_previousPauseOnExceptionsState =
setPauseOnExceptionsState(v8::debug::NoBreakOnException);
}
v8::debug::ExceptionBreakState InjectedScript::Scope::setPauseOnExceptionsState(
v8::debug::ExceptionBreakState newState) {
if (!m_inspector->debugger()->enabled()) return newState;
v8::debug::ExceptionBreakState presentState =
m_inspector->debugger()->getPauseOnExceptionsState();
if (presentState != newState)
m_inspector->debugger()->setPauseOnExceptionsState(newState);
return presentState;
}
void InjectedScript::Scope::pretendUserGesture() {
DCHECK(!m_userGesture);
m_userGesture = true;
m_inspector->client()->beginUserGesture();
}
void InjectedScript::Scope::cleanup() {
m_commandLineAPIScope.reset();
if (!m_context.IsEmpty()) {
m_context->Exit();
m_context.Clear();
}
}
InjectedScript::Scope::~Scope() {
if (m_ignoreExceptionsAndMuteConsole) {
setPauseOnExceptionsState(m_previousPauseOnExceptionsState);
m_inspector->client()->unmuteMetrics(m_contextGroupId);
m_inspector->unmuteExceptions(m_contextGroupId);
}
if (m_userGesture) m_inspector->client()->endUserGesture();
cleanup();
}
InjectedScript::ContextScope::ContextScope(V8InspectorImpl* inspector,
int contextGroupId,
int executionContextId)
: InjectedScript::Scope(inspector, contextGroupId),
m_executionContextId(executionContextId) {}
InjectedScript::ContextScope::~ContextScope() {}
Response InjectedScript::ContextScope::findInjectedScript(
V8InspectorSessionImpl* session) {
return session->findInjectedScript(m_executionContextId, m_injectedScript);
}
InjectedScript::ObjectScope::ObjectScope(V8InspectorImpl* inspector,
int contextGroupId,
const String16& remoteObjectId)
: InjectedScript::Scope(inspector, contextGroupId),
m_remoteObjectId(remoteObjectId) {}
InjectedScript::ObjectScope::~ObjectScope() {}
Response InjectedScript::ObjectScope::findInjectedScript(
V8InspectorSessionImpl* session) {
std::unique_ptr<RemoteObjectId> remoteId;
Response response = RemoteObjectId::parse(m_remoteObjectId, &remoteId);
if (!response.isSuccess()) return response;
InjectedScript* injectedScript = nullptr;
response = session->findInjectedScript(remoteId.get(), injectedScript);
if (!response.isSuccess()) return response;
m_objectGroupName = injectedScript->objectGroupName(*remoteId);
response = injectedScript->findObject(*remoteId, &m_object);
if (!response.isSuccess()) return response;
m_injectedScript = injectedScript;
return Response::OK();
}
InjectedScript::CallFrameScope::CallFrameScope(V8InspectorImpl* inspector,
int contextGroupId,
const String16& remoteObjectId)
: InjectedScript::Scope(inspector, contextGroupId),
m_remoteCallFrameId(remoteObjectId) {}
InjectedScript::CallFrameScope::~CallFrameScope() {}
Response InjectedScript::CallFrameScope::findInjectedScript(
V8InspectorSessionImpl* session) {
std::unique_ptr<RemoteCallFrameId> remoteId;
Response response = RemoteCallFrameId::parse(m_remoteCallFrameId, &remoteId);
if (!response.isSuccess()) return response;
m_frameOrdinal = static_cast<size_t>(remoteId->frameOrdinal());
return session->findInjectedScript(remoteId.get(), m_injectedScript);
}
} // namespace v8_inspector