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/*
* Copyright (C) 2014 Apple 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
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "JSGlobalObjectInspectorController.h"
#if ENABLE(INSPECTOR)
#include "Completion.h"
#include "ErrorHandlingScope.h"
#include "InjectedScriptHost.h"
#include "InjectedScriptManager.h"
#include "InspectorAgent.h"
#include "InspectorBackendDispatcher.h"
#include "InspectorFrontendChannel.h"
#include "JSGlobalObject.h"
#include "JSGlobalObjectConsoleAgent.h"
#include "JSGlobalObjectConsoleClient.h"
#include "JSGlobalObjectDebuggerAgent.h"
#include "JSGlobalObjectRuntimeAgent.h"
#include "ScriptArguments.h"
#include "ScriptCallStack.h"
#include "ScriptCallStackFactory.h"
#include <cxxabi.h>
#include <dlfcn.h>
#include <execinfo.h>
using namespace JSC;
namespace Inspector {
JSGlobalObjectInspectorController::JSGlobalObjectInspectorController(JSGlobalObject& globalObject)
: m_globalObject(globalObject)
, m_injectedScriptManager(std::make_unique<InjectedScriptManager>(*this, InjectedScriptHost::create()))
, m_inspectorFrontendChannel(nullptr)
, m_includeNativeCallStackWithExceptions(true)
{
auto runtimeAgent = std::make_unique<JSGlobalObjectRuntimeAgent>(m_injectedScriptManager.get(), m_globalObject);
auto consoleAgent = std::make_unique<JSGlobalObjectConsoleAgent>(m_injectedScriptManager.get());
auto debuggerAgent = std::make_unique<JSGlobalObjectDebuggerAgent>(m_injectedScriptManager.get(), m_globalObject, consoleAgent.get());
m_consoleAgent = consoleAgent.get();
m_consoleClient = std::make_unique<JSGlobalObjectConsoleClient>(m_consoleAgent);
runtimeAgent->setScriptDebugServer(&debuggerAgent->scriptDebugServer());
m_agents.append(std::make_unique<InspectorAgent>());
m_agents.append(WTF::move(runtimeAgent));
m_agents.append(WTF::move(consoleAgent));
m_agents.append(WTF::move(debuggerAgent));
}
JSGlobalObjectInspectorController::~JSGlobalObjectInspectorController()
{
m_agents.discardAgents();
}
void JSGlobalObjectInspectorController::globalObjectDestroyed()
{
disconnectFrontend(InspectorDisconnectReason::InspectedTargetDestroyed);
m_injectedScriptManager->disconnect();
}
void JSGlobalObjectInspectorController::connectFrontend(InspectorFrontendChannel* frontendChannel)
{
ASSERT(!m_inspectorFrontendChannel);
ASSERT(!m_inspectorBackendDispatcher);
m_inspectorFrontendChannel = frontendChannel;
m_inspectorBackendDispatcher = InspectorBackendDispatcher::create(frontendChannel);
m_agents.didCreateFrontendAndBackend(frontendChannel, m_inspectorBackendDispatcher.get());
}
void JSGlobalObjectInspectorController::disconnectFrontend(InspectorDisconnectReason reason)
{
if (!m_inspectorFrontendChannel)
return;
m_agents.willDestroyFrontendAndBackend(reason);
m_inspectorBackendDispatcher->clearFrontend();
m_inspectorBackendDispatcher.clear();
m_inspectorFrontendChannel = nullptr;
}
void JSGlobalObjectInspectorController::dispatchMessageFromFrontend(const String& message)
{
if (m_inspectorBackendDispatcher)
m_inspectorBackendDispatcher->dispatch(message);
}
void JSGlobalObjectInspectorController::appendAPIBacktrace(ScriptCallStack* callStack)
{
static const int framesToShow = 31;
static const int framesToSkip = 3; // WTFGetBacktrace, appendAPIBacktrace, reportAPIException.
void* samples[framesToShow + framesToSkip];
int frames = framesToShow + framesToSkip;
WTFGetBacktrace(samples, &frames);
void** stack = samples + framesToSkip;
int size = frames - framesToSkip;
for (int i = 0; i < size; ++i) {
const char* mangledName = nullptr;
char* cxaDemangled = nullptr;
Dl_info info;
if (dladdr(stack[i], &info) && info.dli_sname)
mangledName = info.dli_sname;
if (mangledName)
cxaDemangled = abi::__cxa_demangle(mangledName, nullptr, nullptr, nullptr);
if (mangledName || cxaDemangled)
callStack->append(ScriptCallFrame(cxaDemangled ? cxaDemangled : mangledName, ASCIILiteral("[native code]"), 0, 0));
else
callStack->append(ScriptCallFrame(ASCIILiteral("?"), ASCIILiteral("[native code]"), 0, 0));
free(cxaDemangled);
}
}
void JSGlobalObjectInspectorController::reportAPIException(ExecState* exec, JSValue exception)
{
if (isTerminatedExecutionException(exception))
return;
ErrorHandlingScope errorScope(exec->vm());
RefPtr<ScriptCallStack> callStack = createScriptCallStackFromException(exec, exception, ScriptCallStack::maxCallStackSizeToCapture);
if (includesNativeCallStackWhenReportingExceptions())
appendAPIBacktrace(callStack.get());
// FIXME: <http://webkit.org/b/115087> Web Inspector: Should not evaluate JavaScript handling exceptions
// If this is a custom exception object, call toString on it to try and get a nice string representation for the exception.
String errorMessage = exception.toString(exec)->value(exec);
exec->clearException();
if (JSGlobalObjectConsoleClient::logToSystemConsole()) {
if (callStack->size()) {
const ScriptCallFrame& callFrame = callStack->at(0);
ConsoleClient::printConsoleMessage(MessageSource::JS, MessageType::Log, MessageLevel::Error, errorMessage, callFrame.sourceURL(), callFrame.lineNumber(), callFrame.columnNumber());
} else
ConsoleClient::printConsoleMessage(MessageSource::JS, MessageType::Log, MessageLevel::Error, errorMessage, String(), 0, 0);
}
m_consoleAgent->addMessageToConsole(MessageSource::JS, MessageType::Log, MessageLevel::Error, errorMessage, callStack);
}
ConsoleClient* JSGlobalObjectInspectorController::consoleClient() const
{
return m_consoleClient.get();
}
InspectorFunctionCallHandler JSGlobalObjectInspectorController::functionCallHandler() const
{
return JSC::call;
}
InspectorEvaluateHandler JSGlobalObjectInspectorController::evaluateHandler() const
{
return JSC::evaluate;
}
} // namespace Inspector
#endif // ENABLE(INSPECTOR)
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