EncodedJSValue JSC_HOST_CALL constructJSFile(ExecState& exec)
{
auto* constructor = jsCast<DOMConstructorObject*>(exec.callee());
ScriptExecutionContext* context = constructor->scriptExecutionContext();
if (!context)
return throwVMError(&exec, createReferenceError(&exec, "File constructor associated document is unavailable"));
JSValue arg = exec.argument(0);
if (arg.isUndefinedOrNull())
return throwVMTypeError(&exec, ASCIILiteral("First argument to File constructor must be a valid sequence, was undefined or null"));
unsigned blobPartsLength = 0;
JSObject* blobParts = toJSSequence(exec, arg, blobPartsLength);
if (exec.hadException())
return JSValue::encode(jsUndefined());
ASSERT(blobParts);
arg = exec.argument(1);
if (arg.isUndefined())
return throwVMTypeError(&exec, ASCIILiteral("Second argument to File constructor must be a valid string, was undefined"));
String filename = arg.toWTFString(&exec).replace('/', ':');
if (exec.hadException())
return JSValue::encode(jsUndefined());
String normalizedType;
Optional<int64_t> lastModified;
arg = exec.argument(2);
if (!arg.isUndefinedOrNull()) {
JSObject* filePropertyBagObject = arg.getObject();
if (!filePropertyBagObject)
return throwVMTypeError(&exec, ASCIILiteral("Third argument of the constructor is not of type Object"));
// Create the dictionary wrapper from the initializer object.
JSDictionary dictionary(&exec, filePropertyBagObject);
// Attempt to get the type property.
String type;
dictionary.get("type", type);
if (exec.hadException())
return JSValue::encode(jsUndefined());
normalizedType = Blob::normalizedContentType(type);
// Only try to parse the lastModified date if there was not an invalid type argument.
if (type.isEmpty() || !normalizedType.isEmpty()) {
dictionary.get("lastModified", lastModified);
if (exec.hadException())
return JSValue::encode(jsUndefined());
}
}
if (!lastModified)
lastModified = currentTimeMS();
BlobBuilder blobBuilder;
for (unsigned i = 0; i < blobPartsLength; ++i) {
JSValue item = blobParts->get(&exec, i);
if (exec.hadException())
return JSValue::encode(jsUndefined());
if (ArrayBuffer* arrayBuffer = toArrayBuffer(item))
blobBuilder.append(arrayBuffer);
else if (RefPtr<ArrayBufferView> arrayBufferView = toArrayBufferView(item))
blobBuilder.append(WTFMove(arrayBufferView));
else if (Blob* blob = JSBlob::toWrapped(item))
blobBuilder.append(blob);
else {
String string = item.toWTFString(&exec);
if (exec.hadException())
return JSValue::encode(jsUndefined());
blobBuilder.append(string, ASCIILiteral("transparent"));
}
}
auto file = File::create(blobBuilder.finalize(), filename, normalizedType, lastModified.value());
return JSValue::encode(CREATE_DOM_WRAPPER(constructor->globalObject(), File, WTFMove(file)));
}
void IntlCollator::initializeCollator(ExecState& state, JSValue locales, JSValue optionsValue)
{
// 10.1.1 InitializeCollator (collator, locales, options) (ECMA-402 2.0)
// 1. If collator has an [[initializedIntlObject]] internal slot with value true, throw a TypeError exception.
// 2. Set collator.[[initializedIntlObject]] to true.
// 3. Let requestedLocales be CanonicalizeLocaleList(locales).
auto requestedLocales = canonicalizeLocaleList(state, locales);
// 4. ReturnIfAbrupt(requestedLocales).
if (state.hadException())
return;
// 5. If options is undefined, then
JSObject* options;
if (optionsValue.isUndefined()) {
// a. Let options be ObjectCreate(%ObjectPrototype%).
options = constructEmptyObject(&state);
} else { // 6. Else
// a. Let options be ToObject(options).
options = optionsValue.toObject(&state);
// b. ReturnIfAbrupt(options).
if (state.hadException())
return;
}
// 7. Let u be GetOption(options, "usage", "string", «"sort", "search"», "sort").
String usageString = intlStringOption(state, options, state.vm().propertyNames->usage, { "sort", "search" }, "usage must be either \"sort\" or \"search\"", "sort");
// 8. ReturnIfAbrupt(u).
if (state.hadException())
return;
// 9. Set collator.[[usage]] to u.
if (usageString == "sort")
m_usage = Usage::Sort;
else if (usageString == "search")
m_usage = Usage::Search;
else
ASSERT_NOT_REACHED();
// 10. If u is "sort", then
// a. Let localeData be the value of %Collator%.[[sortLocaleData]];
// 11. Else
// a. Let localeData be the value of %Collator%.[[searchLocaleData]].
Vector<String> (*localeData)(const String&, size_t);
if (m_usage == Usage::Sort)
localeData = sortLocaleData;
else
localeData = searchLocaleData;
// 12. Let opt be a new Record.
HashMap<String, String> opt;
// 13. Let matcher be GetOption(options, "localeMatcher", "string", «"lookup", "best fit"», "best fit").
String matcher = intlStringOption(state, options, state.vm().propertyNames->localeMatcher, { "lookup", "best fit" }, "localeMatcher must be either \"lookup\" or \"best fit\"", "best fit");
// 14. ReturnIfAbrupt(matcher).
if (state.hadException())
return;
// 15. Set opt.[[localeMatcher]] to matcher.
opt.add(ASCIILiteral("localeMatcher"), matcher);
// 16. For each row in Table 1, except the header row, do:
// a. Let key be the name given in the Key column of the row.
// b. Let prop be the name given in the Property column of the row.
// c. Let type be the string given in the Type column of the row.
// d. Let list be a List containing the Strings given in the Values column of the row, or undefined if no strings are given.
// e. Let value be GetOption(options, prop, type, list, undefined).
// f. ReturnIfAbrupt(value).
// g. If the string given in the Type column of the row is "boolean" and value is not undefined, then
// i. Let value be ToString(value).
// ii. ReturnIfAbrupt(value).
// h. Set opt.[[<key>]] to value.
{
String numericString;
bool usesFallback;
bool numeric = intlBooleanOption(state, options, state.vm().propertyNames->numeric, usesFallback);
if (state.hadException())
return;
if (!usesFallback)
numericString = ASCIILiteral(numeric ? "true" : "false");
opt.add(ASCIILiteral("kn"), numericString);
}
{
String caseFirst = intlStringOption(state, options, state.vm().propertyNames->caseFirst, { "upper", "lower", "false" }, "caseFirst must be either \"upper\", \"lower\", or \"false\"", nullptr);
if (state.hadException())
return;
opt.add(ASCIILiteral("kf"), caseFirst);
}
// 17. Let relevantExtensionKeys be the value of %Collator%.[[relevantExtensionKeys]].
// 18. Let r be ResolveLocale(%Collator%.[[availableLocales]], requestedLocales, opt, relevantExtensionKeys, localeData).
auto& availableLocales = state.callee()->globalObject()->intlCollatorAvailableLocales();
auto result = resolveLocale(state, availableLocales, requestedLocales, opt, relevantExtensionKeys, WTF_ARRAY_LENGTH(relevantExtensionKeys), localeData);
// 19. Set collator.[[locale]] to the value of r.[[locale]].
m_locale = result.get(ASCIILiteral("locale"));
// 20. Let k be 0.
// 21. Let lenValue be Get(relevantExtensionKeys, "length").
// 22. Let len be ToLength(lenValue).
// 23. Repeat while k < len:
// a. Let Pk be ToString(k).
// b. Let key be Get(relevantExtensionKeys, Pk).
// c. ReturnIfAbrupt(key).
// d. If key is "co", then
// i. Let property be "collation".
// ii. Let value be the value of r.[[co]].
// iii. If value is null, let value be "default".
// e. Else use the row of Table 1 that contains the value of key in the Key column:
// i. Let property be the name given in the Property column of the row.
// ii. Let value be the value of r.[[<key>]].
// iii. If the name given in the Type column of the row is "boolean", let value be the result of comparing value with "true".
// f. Set collator.[[<property>]] to value.
// g. Increase k by 1.
const String& collation = result.get(ASCIILiteral("co"));
m_collation = collation.isNull() ? ASCIILiteral("default") : collation;
m_numeric = (result.get(ASCIILiteral("kn")) == "true");
// 24. Let s be GetOption(options, "sensitivity", "string", «"base", "accent", "case", "variant"», undefined).
String sensitivityString = intlStringOption(state, options, state.vm().propertyNames->sensitivity, { "base", "accent", "case", "variant" }, "sensitivity must be either \"base\", \"accent\", \"case\", or \"variant\"", nullptr);
// 25. ReturnIfAbrupt(s).
if (state.hadException())
return;
// 26. If s is undefined, then
// a. If u is "sort", then let s be "variant".
// b. Else
// i. Let dataLocale be the value of r.[[dataLocale]].
// ii. Let dataLocaleData be Get(localeData, dataLocale).
// iii. Let s be Get(dataLocaleData, "sensitivity").
// 10.2.3 "[[searchLocaleData]][locale] must have a sensitivity property with a String value equal to "base", "accent", "case", or "variant" for all locale values."
// 27. Set collator.[[sensitivity]] to s.
if (sensitivityString == "base")
m_sensitivity = Sensitivity::Base;
else if (sensitivityString == "accent")
m_sensitivity = Sensitivity::Accent;
else if (sensitivityString == "case")
m_sensitivity = Sensitivity::Case;
else
m_sensitivity = Sensitivity::Variant;
// 28. Let ip be GetOption(options, "ignorePunctuation", "boolean", undefined, false).
bool usesFallback;
bool ignorePunctuation = intlBooleanOption(state, options, state.vm().propertyNames->ignorePunctuation, usesFallback);
if (usesFallback)
ignorePunctuation = false;
// 29. ReturnIfAbrupt(ip).
if (state.hadException())
return;
// 30. Set collator.[[ignorePunctuation]] to ip.
m_ignorePunctuation = ignorePunctuation;
// 31. Set collator.[[boundCompare]] to undefined.
// 32. Set collator.[[initializedCollator]] to true.
m_initializedCollator = true;
// 33. Return collator.
}
void JSAbstractEventListener::handleEvent(Event* event, bool isWindowEvent)
{
JSObject* listener = listenerObj();
if (!listener)
return;
JSDOMWindow* window = this->window();
// Null check as clearWindow() can clear this and we still get called back by
// xmlhttprequest objects. See http://bugs.webkit.org/show_bug.cgi?id=13275
if (!window)
return;
Frame* frame = window->impl()->frame();
if (!frame)
return;
ScriptController* script = frame->script();
if (!script->isEnabled() || script->isPaused())
return;
JSLock lock(false);
ExecState* exec = window->globalExec();
JSValue* handleEventFunction = listener->get(exec, Identifier(exec, "handleEvent"));
CallData callData;
CallType callType = handleEventFunction->getCallData(callData);
if (callType == CallTypeNone) {
handleEventFunction = 0;
callType = listener->getCallData(callData);
}
if (callType != CallTypeNone) {
ref();
ArgList args;
args.append(toJS(exec, event));
Event* savedEvent = window->currentEvent();
window->setCurrentEvent(event);
JSValue* retval;
if (handleEventFunction) {
window->startTimeoutCheck();
retval = call(exec, handleEventFunction, callType, callData, listener, args);
} else {
JSValue* thisValue;
if (isWindowEvent)
thisValue = window->shell();
else
thisValue = toJS(exec, event->currentTarget());
window->startTimeoutCheck();
retval = call(exec, listener, callType, callData, thisValue, args);
}
window->stopTimeoutCheck();
window->setCurrentEvent(savedEvent);
if (exec->hadException())
frame->domWindow()->console()->reportCurrentException(exec);
else {
if (!retval->isUndefinedOrNull() && event->storesResultAsString())
event->storeResult(retval->toString(exec));
if (m_isHTML) {
bool retvalbool;
if (retval->getBoolean(retvalbool) && !retvalbool)
event->preventDefault();
}
}
Document::updateDocumentsRendering();
deref();
}
}
void JSLazyEventListener::parseCode(ScriptExecutionContext* executionContext) const
{
ASSERT(executionContext);
ASSERT(executionContext->isDocument());
if (!executionContext)
return;
if (m_parsed)
return;
Frame* frame = static_cast<Document*>(executionContext)->frame();
if (!frame)
return;
ScriptController* scriptController = frame->script();
if (!scriptController->isEnabled())
return;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(executionContext);
if (!globalObject)
return;
// Ensure that 'node' has a JavaScript wrapper to mark the event listener we're creating.
if (m_originalNode) {
JSLock lock(SilenceAssertionsOnly);
// FIXME: Should pass the global object associated with the node
toJS(globalObject->globalExec(), globalObject, m_originalNode);
}
if (executionContext->isDocument()) {
JSDOMWindow* window = static_cast<JSDOMWindow*>(globalObject);
Frame* frame = window->impl()->frame();
if (!frame)
return;
// FIXME: Is this check needed for non-Document contexts?
ScriptController* script = frame->script();
if (!script->isEnabled() || script->isPaused())
return;
}
m_parsed = true;
ExecState* exec = globalObject->globalExec();
MarkedArgumentBuffer args;
args.append(jsNontrivialString(exec, m_eventParameterName));
args.append(jsString(exec, m_code));
m_jsFunction = constructFunction(exec, args, Identifier(exec, m_functionName), m_sourceURL, m_lineNumber); // FIXME: is globalExec ok?
JSFunction* listenerAsFunction = static_cast<JSFunction*>(m_jsFunction);
if (exec->hadException()) {
exec->clearException();
// failed to parse, so let's just make this listener a no-op
m_jsFunction = 0;
} else if (m_originalNode) {
// Add the event's home element to the scope
// (and the document, and the form - see JSHTMLElement::eventHandlerScope)
ScopeChain scope = listenerAsFunction->scope();
JSValue thisObj = toJS(exec, globalObject, m_originalNode);
if (thisObj.isObject()) {
static_cast<JSNode*>(asObject(thisObj))->pushEventHandlerScope(exec, scope);
listenerAsFunction->setScope(scope);
}
}
// Since we only parse once, there's no need to keep data used for parsing around anymore.
m_functionName = String();
m_code = String();
m_eventParameterName = String();
m_sourceURL = String();
}
void JSEventListener::handleEvent(ScriptExecutionContext* scriptExecutionContext, Event* event)
{
ASSERT(scriptExecutionContext);
if (!scriptExecutionContext || scriptExecutionContext->isJSExecutionTerminated())
return;
JSLock lock(SilenceAssertionsOnly);
JSObject* jsFunction = this->jsFunction(scriptExecutionContext);
if (!jsFunction)
return;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(scriptExecutionContext, m_isolatedWorld.get());
if (!globalObject)
return;
if (scriptExecutionContext->isDocument()) {
JSDOMWindow* window = static_cast<JSDOMWindow*>(globalObject);
Frame* frame = window->impl()->frame();
if (!frame)
return;
// The window must still be active in its frame. See <https://bugs.webkit.org/show_bug.cgi?id=21921>.
// FIXME: A better fix for this may be to change DOMWindow::frame() to not return a frame the detached window used to be in.
if (frame->domWindow() != window->impl())
return;
// FIXME: Is this check needed for other contexts?
ScriptController* script = frame->script();
if (!script->canExecuteScripts(AboutToExecuteScript) || script->isPaused())
return;
}
ExecState* exec = globalObject->globalExec();
JSValue handleEventFunction = jsFunction->get(exec, Identifier(exec, "handleEvent"));
CallData callData;
CallType callType = handleEventFunction.getCallData(callData);
if (callType == CallTypeNone) {
handleEventFunction = JSValue();
callType = jsFunction->getCallData(callData);
}
if (callType != CallTypeNone) {
ref();
MarkedArgumentBuffer args;
args.append(toJS(exec, globalObject, event));
Event* savedEvent = globalObject->currentEvent();
globalObject->setCurrentEvent(event);
JSGlobalData* globalData = globalObject->globalData();
DynamicGlobalObjectScope globalObjectScope(exec, globalData->dynamicGlobalObject ? globalData->dynamicGlobalObject : globalObject);
globalData->timeoutChecker.start();
JSValue retval = handleEventFunction
? JSC::call(exec, handleEventFunction, callType, callData, jsFunction, args)
: JSC::call(exec, jsFunction, callType, callData, toJS(exec, globalObject, event->currentTarget()), args);
globalData->timeoutChecker.stop();
globalObject->setCurrentEvent(savedEvent);
if (exec->hadException())
#if PLATFORM(APOLLO)
reportApolloException(globalObject);
#else
reportCurrentException(exec);
#endif
else {
if (!retval.isUndefinedOrNull() && event->storesResultAsString())
JSObject* JSLazyEventListener::initializeJSFunction(ScriptExecutionContext* executionContext) const
{
ASSERT(is<Document>(executionContext));
if (!executionContext)
return nullptr;
ASSERT(!m_code.isNull());
ASSERT(!m_eventParameterName.isNull());
if (m_code.isNull() || m_eventParameterName.isNull())
return nullptr;
Document& document = downcast<Document>(*executionContext);
if (!document.frame())
return nullptr;
if (!document.contentSecurityPolicy()->allowInlineEventHandlers(m_sourceURL, m_sourcePosition.m_line))
return nullptr;
ScriptController& script = document.frame()->script();
if (!script.canExecuteScripts(AboutToExecuteScript) || script.isPaused())
return nullptr;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(executionContext, isolatedWorld());
if (!globalObject)
return nullptr;
ExecState* exec = globalObject->globalExec();
MarkedArgumentBuffer args;
args.append(jsNontrivialString(exec, m_eventParameterName));
args.append(jsStringWithCache(exec, m_code));
// We want all errors to refer back to the line on which our attribute was
// declared, regardless of any newlines in our JavaScript source text.
int overrideLineNumber = m_sourcePosition.m_line.oneBasedInt();
JSObject* jsFunction = constructFunctionSkippingEvalEnabledCheck(
exec, exec->lexicalGlobalObject(), args, Identifier::fromString(exec, m_functionName),
m_sourceURL, m_sourcePosition, overrideLineNumber);
if (exec->hadException()) {
reportCurrentException(exec);
exec->clearException();
return nullptr;
}
JSFunction* listenerAsFunction = jsCast<JSFunction*>(jsFunction);
if (m_originalNode) {
if (!wrapper()) {
// Ensure that 'node' has a JavaScript wrapper to mark the event listener we're creating.
JSLockHolder lock(exec);
// FIXME: Should pass the global object associated with the node
setWrapper(exec->vm(), asObject(toJS(exec, globalObject, *m_originalNode)));
}
// Add the event's home element to the scope
// (and the document, and the form - see JSHTMLElement::eventHandlerScope)
listenerAsFunction->setScope(exec->vm(), jsCast<JSNode*>(wrapper())->pushEventHandlerScope(exec, listenerAsFunction->scope()));
}
return jsFunction;
}
void JSEventListener::handleEvent(ScriptExecutionContext* scriptExecutionContext, Event* event)
{
ASSERT(scriptExecutionContext);
if (!scriptExecutionContext || scriptExecutionContext->isJSExecutionForbidden())
return;
JSLock lock(SilenceAssertionsOnly);
JSObject* jsFunction = this->jsFunction(scriptExecutionContext);
if (!jsFunction)
return;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(scriptExecutionContext, m_isolatedWorld.get());
if (!globalObject)
return;
if (scriptExecutionContext->isDocument()) {
JSDOMWindow* window = static_cast<JSDOMWindow*>(globalObject);
Frame* frame = window->impl()->frame();
if (!frame)
return;
// The window must still be active in its frame. See <https://bugs.webkit.org/show_bug.cgi?id=21921>.
// FIXME: A better fix for this may be to change DOMWindow::frame() to not return a frame the detached window used to be in.
if (frame->domWindow() != window->impl())
return;
// FIXME: Is this check needed for other contexts?
ScriptController* script = frame->script();
if (!script->canExecuteScripts(AboutToExecuteScript) || script->isPaused())
return;
}
ExecState* exec = globalObject->globalExec();
JSValue handleEventFunction = jsFunction;
CallData callData;
CallType callType = getCallData(handleEventFunction, callData);
// If jsFunction is not actually a function, see if it implements the EventListener interface and use that
if (callType == CallTypeNone) {
handleEventFunction = jsFunction->get(exec, Identifier(exec, "handleEvent"));
callType = getCallData(handleEventFunction, callData);
}
if (callType != CallTypeNone) {
RefPtr<JSEventListener> protect(this);
MarkedArgumentBuffer args;
args.append(toJS(exec, globalObject, event));
Event* savedEvent = globalObject->currentEvent();
globalObject->setCurrentEvent(event);
JSGlobalData& globalData = globalObject->globalData();
DynamicGlobalObjectScope globalObjectScope(globalData, globalData.dynamicGlobalObject ? globalData.dynamicGlobalObject : globalObject);
globalData.timeoutChecker.start();
JSValue thisValue = handleEventFunction == jsFunction ? toJS(exec, globalObject, event->currentTarget()) : jsFunction;
JSValue retval = scriptExecutionContext->isDocument()
? JSMainThreadExecState::call(exec, handleEventFunction, callType, callData, thisValue, args)
: JSC::call(exec, handleEventFunction, callType, callData, thisValue, args);
globalData.timeoutChecker.stop();
globalObject->setCurrentEvent(savedEvent);
#if ENABLE(WORKERS)
if (scriptExecutionContext->isWorkerContext()) {
bool terminatorCausedException = (exec->hadException() && isTerminatedExecutionException(exec->exception()));
if (terminatorCausedException || globalData.terminator.shouldTerminate())
static_cast<WorkerContext*>(scriptExecutionContext)->script()->forbidExecution();
}
#endif
if (exec->hadException()) {
event->target()->uncaughtExceptionInEventHandler();
reportCurrentException(exec);
} else {
if (!retval.isUndefinedOrNull() && event->storesResultAsString())
event->storeResult(ustringToString(retval.toString(exec)->value(exec)));
if (m_isAttribute) {
if (retval.isFalse())
event->preventDefault();
}
}
}
}
JSObject* JSLazyEventListener::initializeJSFunction(ScriptExecutionContext* executionContext) const
{
ASSERT(executionContext);
ASSERT(executionContext->isDocument());
if (!executionContext)
return 0;
Frame* frame = static_cast<Document*>(executionContext)->frame();
if (!frame)
return 0;
ScriptController* scriptController = frame->script();
if (!scriptController->canExecuteScripts(AboutToExecuteScript))
return 0;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(executionContext, isolatedWorld());
if (!globalObject)
return 0;
if (executionContext->isDocument()) {
JSDOMWindow* window = static_cast<JSDOMWindow*>(globalObject);
Frame* frame = window->impl()->frame();
if (!frame)
return 0;
// FIXME: Is this check needed for non-Document contexts?
ScriptController* script = frame->script();
if (!script->canExecuteScripts(AboutToExecuteScript) || script->isPaused())
return 0;
}
ExecState* exec = globalObject->globalExec();
MarkedArgumentBuffer args;
args.append(jsNontrivialString(exec, stringToUString(m_eventParameterName)));
args.append(jsString(exec, m_code));
JSObject* jsFunction = constructFunction(exec, args, Identifier(exec, stringToUString(m_functionName)), stringToUString(m_sourceURL), m_lineNumber); // FIXME: is globalExec ok?
if (exec->hadException()) {
exec->clearException();
return 0;
}
JSFunction* listenerAsFunction = static_cast<JSFunction*>(jsFunction);
if (m_originalNode) {
if (!wrapper()) {
// Ensure that 'node' has a JavaScript wrapper to mark the event listener we're creating.
JSLock lock(SilenceAssertionsOnly);
// FIXME: Should pass the global object associated with the node
setWrapper(asObject(toJS(globalObject->globalExec(), globalObject, m_originalNode)));
}
// Add the event's home element to the scope
// (and the document, and the form - see JSHTMLElement::eventHandlerScope)
ScopeChain scope = listenerAsFunction->scope();
static_cast<JSNode*>(wrapper())->pushEventHandlerScope(exec, scope);
listenerAsFunction->setScope(scope);
}
// Since we only parse once, there's no need to keep data used for parsing around anymore.
m_functionName = String();
m_code = String();
m_eventParameterName = String();
m_sourceURL = String();
return jsFunction;
}
void JSEventListener::handleEvent(Event* event, bool isWindowEvent)
{
JSLock lock(SilenceAssertionsOnly);
JSObject* jsFunction = this->jsFunction();
if (!jsFunction)
return;
JSDOMGlobalObject* globalObject = m_globalObject;
// Null check as clearGlobalObject() can clear this and we still get called back by
// xmlhttprequest objects. See http://bugs.webkit.org/show_bug.cgi?id=13275
// FIXME: Is this check still necessary? Requests are supposed to be stopped before clearGlobalObject() is called.
ASSERT(globalObject);
if (!globalObject)
return;
ScriptExecutionContext* scriptExecutionContext = globalObject->scriptExecutionContext();
if (!scriptExecutionContext)
return;
if (scriptExecutionContext->isDocument()) {
JSDOMWindow* window = static_cast<JSDOMWindow*>(globalObject);
Frame* frame = window->impl()->frame();
if (!frame)
return;
// The window must still be active in its frame. See <https://bugs.webkit.org/show_bug.cgi?id=21921>.
// FIXME: A better fix for this may be to change DOMWindow::frame() to not return a frame the detached window used to be in.
if (frame->domWindow() != window->impl())
return;
// FIXME: Is this check needed for other contexts?
ScriptController* script = frame->script();
if (!script->isEnabled() || script->isPaused())
return;
}
ExecState* exec = globalObject->globalExec();
JSValue handleEventFunction = jsFunction->get(exec, Identifier(exec, "handleEvent"));
CallData callData;
CallType callType = handleEventFunction.getCallData(callData);
if (callType == CallTypeNone) {
handleEventFunction = JSValue();
callType = jsFunction->getCallData(callData);
}
if (callType != CallTypeNone) {
ref();
MarkedArgumentBuffer args;
args.append(toJS(exec, globalObject, event));
Event* savedEvent = globalObject->currentEvent();
globalObject->setCurrentEvent(event);
// If this event handler is the first JavaScript to execute, then the
// dynamic global object should be set to the global object of the
// window in which the event occurred.
JSGlobalData* globalData = globalObject->globalData();
DynamicGlobalObjectScope globalObjectScope(exec, globalData->dynamicGlobalObject ? globalData->dynamicGlobalObject : globalObject);
JSValue retval;
if (handleEventFunction) {
globalObject->globalData()->timeoutChecker.start();
retval = call(exec, handleEventFunction, callType, callData, jsFunction, args);
} else {
JSValue thisValue;
if (isWindowEvent)
thisValue = globalObject->toThisObject(exec);
else
thisValue = toJS(exec, globalObject, event->currentTarget());
globalObject->globalData()->timeoutChecker.start();
retval = call(exec, jsFunction, callType, callData, thisValue, args);
}
globalObject->globalData()->timeoutChecker.stop();
globalObject->setCurrentEvent(savedEvent);
if (exec->hadException())
reportCurrentException(exec);
else {
if (!retval.isUndefinedOrNull() && event->storesResultAsString())
event->storeResult(retval.toString(exec));
if (m_isAttribute) {
bool retvalbool;
if (retval.getBoolean(retvalbool) && !retvalbool)
event->preventDefault();
}
}
if (scriptExecutionContext->isDocument())
Document::updateStyleForAllDocuments();
deref();
}
}
RefPtr<IDBRequest> IDBObjectStore::putOrAdd(ExecState& state, JSValue value, RefPtr<IDBKey> key, IndexedDB::ObjectStoreOverwriteMode overwriteMode, InlineKeyCheck inlineKeyCheck, ExceptionCodeWithMessage& ec)
{
LOG(IndexedDB, "IDBObjectStore::putOrAdd");
ASSERT(currentThread() == m_transaction->database().originThreadID());
auto context = scriptExecutionContextFromExecState(&state);
if (!context) {
ec.code = IDBDatabaseException::UnknownError;
ec.message = ASCIILiteral("Unable to store record in object store because it does not have a valid script execution context");
return nullptr;
}
// The IDB spec for several IDBObjectStore methods states that transaction related exceptions should fire before
// the exception for an object store being deleted.
// However, a handful of W3C IDB tests expect the deleted exception even though the transaction inactive exception also applies.
// Additionally, Chrome and Edge agree with the test, as does Legacy IDB in WebKit.
// Until this is sorted out, we'll agree with the test and the majority share browsers.
if (m_deleted) {
ec.code = IDBDatabaseException::InvalidStateError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The object store has been deleted.");
return nullptr;
}
if (!m_transaction->isActive()) {
ec.code = IDBDatabaseException::TransactionInactiveError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The transaction is inactive or finished.");
return nullptr;
}
if (m_transaction->isReadOnly()) {
ec.code = IDBDatabaseException::ReadOnlyError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The transaction is read-only.");
return nullptr;
}
RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValue::create(&state, value, nullptr, nullptr);
if (state.hadException()) {
// Clear the DOM exception from the serializer so we can give a more targeted exception.
state.clearException();
ec.code = IDBDatabaseException::DataCloneError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: An object could not be cloned.");
return nullptr;
}
bool privateBrowsingEnabled = false;
if (context->isDocument()) {
if (auto* page = static_cast<Document*>(context)->page())
privateBrowsingEnabled = page->sessionID().isEphemeral();
}
if (serializedValue->hasBlobURLs() && privateBrowsingEnabled) {
// https://bugs.webkit.org/show_bug.cgi?id=156347 - Support Blobs in private browsing.
ec.code = IDBDatabaseException::DataCloneError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: BlobURLs are not yet supported.");
return nullptr;
}
if (key && !key->isValid()) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The parameter is not a valid key.");
return nullptr;
}
bool usesInlineKeys = !m_info.keyPath().isNull();
bool usesKeyGenerator = autoIncrement();
if (usesInlineKeys && inlineKeyCheck == InlineKeyCheck::Perform) {
if (key) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The object store uses in-line keys and the key parameter was provided.");
return nullptr;
}
RefPtr<IDBKey> keyPathKey = maybeCreateIDBKeyFromScriptValueAndKeyPath(state, value, m_info.keyPath());
if (keyPathKey && !keyPathKey->isValid()) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: Evaluating the object store's key path yielded a value that is not a valid key.");
return nullptr;
}
if (!keyPathKey) {
if (usesKeyGenerator) {
if (!canInjectIDBKeyIntoScriptValue(state, value, m_info.keyPath())) {
ec.code = IDBDatabaseException::DataError;
return nullptr;
}
} else {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: Evaluating the object store's key path did not yield a value.");
return nullptr;
}
}
if (keyPathKey) {
ASSERT(!key);
key = keyPathKey;
}
} else if (!usesKeyGenerator && !key) {
ec.code = IDBDatabaseException::DataError;
ec.message = ASCIILiteral("Failed to store record in an IDBObjectStore: The object store uses out-of-line keys and has no key generator and the key parameter was not provided.");
return nullptr;
}
return m_transaction->requestPutOrAdd(*context, *this, key.get(), *serializedValue, overwriteMode);
}
// https://html.spec.whatwg.org/#dom-customelementsregistry-define
JSValue JSCustomElementsRegistry::define(ExecState& state)
{
if (UNLIKELY(state.argumentCount() < 2))
return state.vm().throwException(&state, createNotEnoughArgumentsError(&state));
AtomicString localName(state.uncheckedArgument(0).toString(&state)->toAtomicString(&state));
if (UNLIKELY(state.hadException()))
return jsUndefined();
JSValue constructorValue = state.uncheckedArgument(1);
if (!constructorValue.isConstructor())
return throwTypeError(&state, ASCIILiteral("The second argument must be a constructor"));
JSObject* constructor = constructorValue.getObject();
// FIXME: Throw a TypeError if constructor doesn't inherit from HTMLElement.
// https://github.com/w3c/webcomponents/issues/541
switch (Document::validateCustomElementName(localName)) {
case CustomElementNameValidationStatus::Valid:
break;
case CustomElementNameValidationStatus::ConflictsWithBuiltinNames:
return throwSyntaxError(&state, ASCIILiteral("Custom element name cannot be same as one of the builtin elements"));
case CustomElementNameValidationStatus::NoHyphen:
return throwSyntaxError(&state, ASCIILiteral("Custom element name must contain a hyphen"));
case CustomElementNameValidationStatus::ContainsUpperCase:
return throwSyntaxError(&state, ASCIILiteral("Custom element name cannot contain an upper case letter"));
}
// FIXME: Check re-entrancy here.
// https://github.com/w3c/webcomponents/issues/545
CustomElementsRegistry& registry = wrapped();
if (registry.findInterface(localName)) {
throwNotSupportedError(state, ASCIILiteral("Cannot define multiple custom elements with the same tag name"));
return jsUndefined();
}
if (registry.containsConstructor(constructor)) {
throwNotSupportedError(state, ASCIILiteral("Cannot define multiple custom elements with the same class"));
return jsUndefined();
}
auto& vm = globalObject()->vm();
JSValue prototypeValue = constructor->get(&state, vm.propertyNames->prototype);
if (state.hadException())
return jsUndefined();
if (!prototypeValue.isObject())
return throwTypeError(&state, ASCIILiteral("Custom element constructor's prototype must be an object"));
JSObject& prototypeObject = *asObject(prototypeValue);
QualifiedName name(nullAtom, localName, HTMLNames::xhtmlNamespaceURI);
auto elementInterface = JSCustomElementInterface::create(name, constructor, globalObject());
auto* connectedCallback = getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "connectedCallback"));
if (state.hadException())
return jsUndefined();
if (connectedCallback)
elementInterface->setConnectedCallback(connectedCallback);
auto* disconnectedCallback = getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "disconnectedCallback"));
if (state.hadException())
return jsUndefined();
if (disconnectedCallback)
elementInterface->setDisconnectedCallback(disconnectedCallback);
// FIXME: Add the support for adoptedCallback.
getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "adoptedCallback"));
if (state.hadException())
return jsUndefined();
auto* attributeChangedCallback = getCustomElementCallback(state, prototypeObject, Identifier::fromString(&vm, "attributeChangedCallback"));
if (state.hadException())
return jsUndefined();
if (attributeChangedCallback) {
auto value = convertOptional<Vector<String>>(state, constructor->get(&state, Identifier::fromString(&state, "observedAttributes")));
if (state.hadException())
return jsUndefined();
if (value)
elementInterface->setAttributeChangedCallback(attributeChangedCallback, *value);
}
PrivateName uniquePrivateName;
globalObject()->putDirect(vm, uniquePrivateName, constructor);
registry.addElementDefinition(WTFMove(elementInterface));
// FIXME: 17. Let map be registry's upgrade candidates map.
// FIXME: 18. Upgrade a newly-defined element given map and definition.
// FIXME: 19. Resolve whenDefined promise.
return jsUndefined();
}
void JSAbstractEventListener::handleEvent(Event* ele, bool isWindowEvent)
{
#ifdef KJS_DEBUGGER
if (KJSDebugWin::instance() && KJSDebugWin::instance()->inSession())
return;
#endif
Event *event = ele;
JSObject* listener = listenerObj();
if (!listener)
return;
Window* window = windowObj();
Frame *frame = window->frame();
if (!frame)
return;
KJSProxy* proxy = frame->jScript();
if (!proxy)
return;
JSLock lock;
ScriptInterpreter* interpreter = proxy->interpreter();
ExecState* exec = interpreter->globalExec();
JSValue* handleEventFuncValue = listener->get(exec, "handleEvent");
JSObject* handleEventFunc = 0;
if (handleEventFuncValue->isObject()) {
handleEventFunc = static_cast<JSObject*>(handleEventFuncValue);
if (!handleEventFunc->implementsCall())
handleEventFunc = 0;
}
if (handleEventFunc || listener->implementsCall()) {
ref();
List args;
args.append(toJS(exec, event));
// Set the event we're handling in the Window object
window->setCurrentEvent(event);
// ... and in the interpreter
interpreter->setCurrentEvent(event);
JSValue* retval;
if (handleEventFunc) {
interpreter->startTimeoutCheck();
retval = handleEventFunc->call(exec, listener, args);
} else {
JSObject* thisObj;
if (isWindowEvent)
thisObj = window;
else
thisObj = static_cast<JSObject*>(toJS(exec, event->currentTarget()));
interpreter->startTimeoutCheck();
retval = listener->call(exec, thisObj, args);
}
interpreter->stopTimeoutCheck();
window->setCurrentEvent(0);
interpreter->setCurrentEvent(0);
if (exec->hadException()) {
JSObject* exception = exec->exception()->toObject(exec);
String message = exception->get(exec, messagePropertyName)->toString(exec);
int lineNumber = exception->get(exec, "line")->toInt32(exec);
String sourceURL = exception->get(exec, "sourceURL")->toString(exec);
if (Interpreter::shouldPrintExceptions())
printf("(event handler):%s\n", message.deprecatedString().utf8().data());
frame->addMessageToConsole(message, lineNumber, sourceURL);
exec->clearException();
} else {
if (!retval->isUndefinedOrNull() && event->storesResultAsString())
event->storeResult(retval->toString(exec));
if (html) {
bool retvalbool;
if (retval->getBoolean(retvalbool) && !retvalbool)
event->preventDefault();
}
}
Document::updateDocumentsRendering();
deref();
}
}
void JSLazyEventListener::parseCode() const
{
if (!parsed) {
KHTMLPart *part = qobject_cast<KHTMLPart*>(static_cast<Window*>(win.get())->part());
KJSProxy *proxy = 0L;
if (part)
proxy = part->jScript();
if (proxy) {
KJS::ScriptInterpreter *interpreter = static_cast<KJS::ScriptInterpreter *>(proxy->interpreter());
ExecState *exec = interpreter->globalExec();
//KJS::Constructor constr(KJS::Global::current().get("Function").imp());
KJS::FunctionObjectImp *constr = static_cast<KJS::FunctionObjectImp*>(interpreter->builtinFunction());
KJS::List args;
if (svg)
args.append(jsString("evt"));
else
args.append(jsString("event"));
args.append(jsString(code));
listener = constr->construct(exec, args,
Identifier(UString(name)), url, lineNum); // ### is globalExec ok ?
compareListenerImp = listener;
if (exec->hadException()) {
exec->clearException();
// failed to parse, so let's just make this listener a no-op
listener = 0;
} else if (!listener->inherits(&DeclaredFunctionImp::info)) {
listener = 0;// Error creating function
} else {
DeclaredFunctionImp *declFunc = static_cast<DeclaredFunctionImp*>(listener.get());
if (originalNode)
{
// Add the event's home element to the scope
// (and the document, and the form - see KJS::HTMLElement::eventHandlerScope)
ScopeChain scope = declFunc->scope();
JSObject *thisObj = getDOMNode(exec, originalNode)->getObject();
if (thisObj) {
static_cast<DOMNode*>(thisObj)->pushEventHandlerScope(exec, scope);
declFunc->setScope(scope);
}
}
}
}
// no more need to keep the unparsed code around
code.clear();
if (listener) {
static_cast<Window*>(win.get())->jsEventListeners.insert(QPair<void*, bool>(compareListenerImp.get(), true),
(KJS::JSEventListener *)(this));
}
parsed = true;
}
}
void JSEventListener::handleEvent(ScriptExecutionContext* scriptExecutionContext, Event* event)
{
ASSERT(scriptExecutionContext);
if (!scriptExecutionContext || scriptExecutionContext->isJSExecutionForbidden())
return;
JSLockHolder lock(scriptExecutionContext->vm());
JSObject* jsFunction = this->jsFunction(scriptExecutionContext);
if (!jsFunction)
return;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(scriptExecutionContext, *m_isolatedWorld);
if (!globalObject)
return;
if (scriptExecutionContext->isDocument()) {
JSDOMWindow* window = jsCast<JSDOMWindow*>(globalObject);
if (!window->impl().isCurrentlyDisplayedInFrame())
return;
// FIXME: Is this check needed for other contexts?
ScriptController& script = window->impl().frame()->script();
if (!script.canExecuteScripts(AboutToExecuteScript) || script.isPaused())
return;
}
ExecState* exec = globalObject->globalExec();
JSValue handleEventFunction = jsFunction;
CallData callData;
CallType callType = getCallData(handleEventFunction, callData);
// If jsFunction is not actually a function, see if it implements the EventListener interface and use that
if (callType == CallTypeNone) {
handleEventFunction = jsFunction->get(exec, Identifier(exec, "handleEvent"));
callType = getCallData(handleEventFunction, callData);
}
if (callType != CallTypeNone) {
Ref<JSEventListener> protect(*this);
MarkedArgumentBuffer args;
args.append(toJS(exec, globalObject, event));
Event* savedEvent = globalObject->currentEvent();
globalObject->setCurrentEvent(event);
VM& vm = globalObject->vm();
VMEntryScope entryScope(vm, vm.entryScope ? vm.entryScope->globalObject() : globalObject);
InspectorInstrumentationCookie cookie = JSMainThreadExecState::instrumentFunctionCall(scriptExecutionContext, callType, callData);
JSValue thisValue = handleEventFunction == jsFunction ? toJS(exec, globalObject, event->currentTarget()) : jsFunction;
JSValue retval = scriptExecutionContext->isDocument()
? JSMainThreadExecState::call(exec, handleEventFunction, callType, callData, thisValue, args)
: JSC::call(exec, handleEventFunction, callType, callData, thisValue, args);
InspectorInstrumentation::didCallFunction(cookie);
globalObject->setCurrentEvent(savedEvent);
if (scriptExecutionContext->isWorkerGlobalScope()) {
bool terminatorCausedException = (exec->hadException() && isTerminatedExecutionException(exec->exception()));
if (terminatorCausedException || vm.watchdog.didFire())
static_cast<WorkerGlobalScope*>(scriptExecutionContext)->script()->forbidExecution();
}
if (exec->hadException()) {
event->target()->uncaughtExceptionInEventHandler();
reportCurrentException(exec);
} else {
if (!retval.isUndefinedOrNull() && event->isBeforeUnloadEvent())
toBeforeUnloadEvent(event)->setReturnValue(retval.toString(exec)->value(exec));
if (m_isAttribute) {
if (retval.isFalse())
event->preventDefault();
}
}
}
}
