static void messageHandlerInMainThread(v8::Local<v8::Message> message,
v8::Local<v8::Value> data) {
ASSERT(isMainThread());
v8::Isolate* isolate = v8::Isolate::GetCurrent();
if (isolate->GetEnteredContext().IsEmpty())
return;
// If called during context initialization, there will be no entered context.
ScriptState* scriptState = ScriptState::current(isolate);
if (!scriptState->contextIsValid())
return;
ExecutionContext* context = scriptState->getExecutionContext();
std::unique_ptr<SourceLocation> location =
SourceLocation::fromMessage(isolate, message, context);
AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
if (message->IsOpaque())
accessControlStatus = OpaqueResource;
else if (message->IsSharedCrossOrigin())
accessControlStatus = SharableCrossOrigin;
ErrorEvent* event =
ErrorEvent::create(toCoreStringWithNullCheck(message->Get()),
std::move(location), &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?
if (context->isDocument()) {
LocalFrame* frame = toDocument(context)->frame();
if (frame && frame->script().existingWindowProxy(scriptState->world())) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(
scriptState, event, 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;
context->dispatchErrorEvent(event, accessControlStatus);
} else {
context->dispatchErrorEvent(event, accessControlStatus);
}
}
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);
}
}
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);
}