Exemple #1
0
static void messageHandlerInMainThread(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
    ASSERT(isMainThread());
    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    // If called during context initialization, there will be no entered window.
    LocalDOMWindow* enteredWindow = enteredDOMWindow(isolate);
    if (!enteredWindow || !enteredWindow->isCurrentlyDisplayedInFrame())
        return;

    int scriptId = 0;
    RefPtrWillBeRawPtr<ScriptCallStack> callStack = extractCallStack(isolate, message, &scriptId);
    String resourceName = extractResourceName(message, enteredWindow->document());
    AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
    if (message->IsOpaque())
        accessControlStatus = OpaqueResource;
    else if (message->IsSharedCrossOrigin())
        accessControlStatus = SharableCrossOrigin;

    ScriptState* scriptState = ScriptState::current(isolate);
    String errorMessage = toCoreStringWithNullCheck(message->Get());
    int lineNumber = 0;
    int columnNumber = 0;
    if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
        && v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
        ++columnNumber;
    RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, resourceName, lineNumber, columnNumber, &scriptState->world());

    String messageForConsole = extractMessageForConsole(isolate, data);
    if (!messageForConsole.isEmpty())
        event->setUnsanitizedMessage("Uncaught " + messageForConsole);

    // This method might be called while we're creating a new context. In this case, we
    // avoid storing the exception object, as we can't create a wrapper during context creation.
    // FIXME: Can we even get here during initialization now that we bail out when GetEntered returns an empty handle?
    LocalFrame* frame = enteredWindow->document()->frame();
    if (frame && frame->script().existingWindowProxy(scriptState->world())) {
        V8ErrorHandler::storeExceptionOnErrorEventWrapper(isolate, event.get(), data, scriptState->context()->Global());
    }

    if (scriptState->world().isPrivateScriptIsolatedWorld()) {
        // We allow a private script to dispatch error events even in a EventDispatchForbiddenScope scope.
        // Without having this ability, it's hard to debug the private script because syntax errors
        // in the private script are not reported to console (the private script just crashes silently).
        // Allowing error events in private scripts is safe because error events don't propagate to
        // other isolated worlds (which means that the error events won't fire any event listeners
        // in user's scripts).
        EventDispatchForbiddenScope::AllowUserAgentEvents allowUserAgentEvents;
        enteredWindow->document()->reportException(event.release(), scriptId, callStack, accessControlStatus);
    } else {
        enteredWindow->document()->reportException(event.release(), scriptId, callStack, accessControlStatus);
    }
}
Exemple #2
0
std::unique_ptr<protocol::Runtime::ExceptionDetails> InjectedScript::createExceptionDetails(v8::Local<v8::Message> message)
{
    std::unique_ptr<protocol::Runtime::ExceptionDetails> exceptionDetailsObject = protocol::Runtime::ExceptionDetails::create()
        .setText(toProtocolString(message->Get()))
        .setScriptId(String16::fromInteger(message->GetScriptOrigin().ScriptID()->Value()))
        .setLineNumber(message->GetLineNumber(m_context->context()).FromMaybe(1) - 1)
        .setColumnNumber(message->GetStartColumn(m_context->context()).FromMaybe(0))
        .build();

    v8::Local<v8::StackTrace> stackTrace = message->GetStackTrace();
    if (!stackTrace.IsEmpty() && stackTrace->GetFrameCount() > 0)
        exceptionDetailsObject->setStackTrace(m_context->inspector()->debugger()->createStackTrace(stackTrace)->buildInspectorObjectImpl());
    return exceptionDetailsObject;
}
void V8LazyEventListener::fireErrorEvent(v8::Local<v8::Context> v8Context, ExecutionContext* executionContext, v8::Local<v8::Message> message)
{
    String messageText = toCoreStringWithNullCheck(message->Get());
    int lineNumber = 0;
    int columnNumber = 0;
    if (v8Call(message->GetLineNumber(v8Context), lineNumber)
        && v8Call(message->GetStartColumn(v8Context), columnNumber))
        ++columnNumber;
    RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(messageText, m_sourceURL, lineNumber, columnNumber, &world());

    AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
    if (message->IsOpaque())
        accessControlStatus = OpaqueResource;
    else if (message->IsSharedCrossOrigin())
        accessControlStatus = SharableCrossOrigin;

    executionContext->reportException(event.release(), 0, nullptr, accessControlStatus);
}
Exemple #4
0
std::string wavyLine(
  v8::Isolate *isolate,
  const v8::Local<v8::Message> &message)
{
  std::string wavy_line = "";

  int source_col_start_default = 0;
  int source_col_start = message->GetStartColumn(
    isolate->GetCurrentContext()).FromMaybe(source_col_start_default);

  wavy_line += paddingOf(source_col_start);

  int source_col_end_default = 0;
  int source_col_end = message->GetEndColumn(
    isolate->GetCurrentContext()).FromMaybe(source_col_end_default);

  for (int i = source_col_start; i < source_col_end; i++)
    wavy_line += "^";

  return wavy_line;
}
static void messageHandlerInWorker(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    V8PerIsolateData* perIsolateData = V8PerIsolateData::from(isolate);
    // Exceptions that occur in error handler should be ignored since in that case
    // WorkerGlobalScope::reportException will send the exception to the worker object.
    if (perIsolateData->isReportingException())
        return;
    perIsolateData->setReportingException(true);

    ScriptState* scriptState = ScriptState::current(isolate);
    // During the frame teardown, there may not be a valid context.
    if (ExecutionContext* context = scriptState->executionContext()) {
        String errorMessage = toCoreStringWithNullCheck(message->Get());
        TOSTRING_VOID(V8StringResource<>, sourceURL, message->GetScriptOrigin().ResourceName());
        int scriptId = 0;
        RefPtrWillBeRawPtr<ScriptCallStack> callStack = extractCallStack(isolate, message, &scriptId);

        int lineNumber = 0;
        int columnNumber = 0;
        if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
            && v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
            ++columnNumber;
        RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, sourceURL, lineNumber, columnNumber, &DOMWrapperWorld::current(isolate));
        AccessControlStatus corsStatus = message->IsSharedCrossOrigin() ? SharableCrossOrigin : NotSharableCrossOrigin;

        // If execution termination has been triggered as part of constructing
        // the error event from the v8::Message, quietly leave.
        if (!v8::V8::IsExecutionTerminating(isolate)) {
            V8ErrorHandler::storeExceptionOnErrorEventWrapper(isolate, event.get(), data, scriptState->context()->Global());
            context->reportException(event.release(), scriptId, callStack, corsStatus);
        }
    }

    perIsolateData->setReportingException(false);
}
Exemple #6
0
// static
std::unique_ptr<SourceLocation> SourceLocation::fromMessage(
    v8::Isolate* isolate,
    v8::Local<v8::Message> message,
    ExecutionContext* executionContext) {
  v8::Local<v8::StackTrace> stack = message->GetStackTrace();
  std::unique_ptr<v8_inspector::V8StackTrace> stackTrace = nullptr;
  V8PerIsolateData* data = V8PerIsolateData::from(isolate);
  if (data && data->threadDebugger())
    stackTrace = data->threadDebugger()->v8Inspector()->createStackTrace(stack);

  int scriptId = message->GetScriptOrigin().ScriptID()->Value();
  if (!stack.IsEmpty() && stack->GetFrameCount() > 0) {
    int topScriptId = stack->GetFrame(0)->GetScriptId();
    if (topScriptId == scriptId)
      scriptId = 0;
  }

  int lineNumber = 0;
  int columnNumber = 0;
  if (v8Call(message->GetLineNumber(isolate->GetCurrentContext()),
             lineNumber) &&
      v8Call(message->GetStartColumn(isolate->GetCurrentContext()),
             columnNumber))
    ++columnNumber;

  if ((!scriptId || !lineNumber) && stackTrace && !stackTrace->isEmpty())
    return SourceLocation::createFromNonEmptyV8StackTrace(std::move(stackTrace),
                                                          0);

  String url = toCoreStringWithUndefinedOrNullCheck(
      message->GetScriptOrigin().ResourceName());
  if (url.isNull())
    url = executionContext->url();
  return SourceLocation::create(url, lineNumber, columnNumber,
                                std::move(stackTrace), scriptId);
}
v8::Local<v8::Object> JavaScriptCallFrame::createExceptionDetails(v8::Isolate* isolate, v8::Local<v8::Message> message)
{
    v8::Local<v8::Object> exceptionDetails = v8::Object::New(isolate);
    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "text"), message->Get());
    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "url"), message->GetScriptOrigin().ResourceName());
    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "scriptId"), v8::Integer::New(isolate, message->GetScriptOrigin().ScriptID()->Value()));
    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "line"), v8::Integer::New(isolate, message->GetLineNumber()));
    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "column"), v8::Integer::New(isolate, message->GetStartColumn()));
    if (!message->GetStackTrace().IsEmpty())
        exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "stackTrace"), message->GetStackTrace()->AsArray());
    else
        exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "stackTrace"), v8::Undefined(isolate));
    return exceptionDetails;
}