JavaScriptCore-7600.1.4.9.tar.gz

[apple/javascriptcore.git] / inspector / JSGlobalObjectInspectorController.cpp

diff --git a/inspector/JSGlobalObjectInspectorController.cpp b/inspector/JSGlobalObjectInspectorController.cpp
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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 "JSConsoleClient.h"
+#include "JSGlobalObject.h"
+#include "JSGlobalObjectConsoleAgent.h"
+#include "JSGlobalObjectDebuggerAgent.h"
+#include "JSGlobalObjectProfilerAgent.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());
+    auto profilerAgent = std::make_unique<JSGlobalObjectProfilerAgent>(m_globalObject);
+
+    m_consoleAgent = consoleAgent.get();
+    m_consoleClient = std::make_unique<JSConsoleClient>(m_consoleAgent, profilerAgent.get());
+
+    runtimeAgent->setScriptDebugServer(&debuggerAgent->scriptDebugServer());
+    profilerAgent->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 (JSConsoleClient::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)