Expected<T, DatabaseError> InMemoryDatabase::getValue(const std::string& domain,
const std::string& key) {
debug_only::verifyTrue(is_open_, "database is not open");
if (!is_open_) {
return createError(DatabaseError::DbIsNotOpen, "Database is closed");
}
auto storage_iter = storage_.find(domain);
if (storage_iter == storage_.end()) {
return domainNotFoundError(domain);
}
std::lock_guard<std::mutex> lock(storage_iter->second->getMutex());
auto result = storage_iter->second->get(key);
if (result) {
DataType value = result.take();
if (value.type() == typeid(T)) {
return boost::get<T>(value);
} else {
auto error =
createError(DatabaseError::KeyNotFound, "Requested wrong type for: ")
<< domain << ":" << key << " stored type: " << value.type().name()
<< " requested type " << boost::core::demangle(typeid(T).name());
LOG(ERROR) << error.getFullMessageRecursive();
debug_only::fail(error.getFullMessageRecursive().c_str());
return std::move(error);
}
}
return result.takeError();
}
// VERSION major[.minor]
Error parseVersion(uint32_t *Major, uint32_t *Minor) {
read();
if (Tok.K != Identifier)
return createError("identifier expected, but got " + Tok.Value);
StringRef V1, V2;
std::tie(V1, V2) = Tok.Value.split('.');
if (V1.getAsInteger(10, *Major))
return createError("integer expected, but got " + Tok.Value);
if (V2.empty())
*Minor = 0;
else if (V2.getAsInteger(10, *Minor))
return createError("integer expected, but got " + Tok.Value);
return Error::success();
}
JSObject* ScriptExecutable::prepareForExecutionImpl(
ExecState* exec, JSFunction* function, JSScope* scope, CodeSpecializationKind kind)
{
VM& vm = exec->vm();
DeferGC deferGC(vm.heap);
if (vm.getAndClearFailNextNewCodeBlock())
return createError(exec->callerFrame(), ASCIILiteral("Forced Failure"));
JSObject* exception = 0;
CodeBlock* codeBlock = newCodeBlockFor(kind, function, scope, exception);
if (!codeBlock) {
RELEASE_ASSERT(exception);
return exception;
}
if (Options::validateBytecode())
codeBlock->validate();
if (Options::useLLInt())
setupLLInt(vm, codeBlock);
else
setupJIT(vm, codeBlock);
installCode(*codeBlock->vm(), codeBlock, codeBlock->codeType(), codeBlock->specializationKind());
return 0;
}
static RefPtr<CryptoAlgorithmParameters> createAesCbcParams(ExecState* exec, JSValue value)
{
if (!value.isObject()) {
throwTypeError(exec);
return nullptr;
}
JSValue iv = getProperty(exec, value.getObject(), "iv");
if (exec->hadException())
return nullptr;
auto result = adoptRef(*new CryptoAlgorithmAesCbcParams);
CryptoOperationData ivData;
if (!cryptoOperationDataFromJSValue(exec, iv, ivData)) {
ASSERT(exec->hadException());
return nullptr;
}
if (ivData.second != 16) {
exec->vm().throwException(exec, createError(exec, "AES-CBC initialization data must be 16 bytes"));
return nullptr;
}
memcpy(result->iv.data(), ivData.first, ivData.second);
return WTFMove(result);
}
void WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, ScriptValue* exception)
{
if (isExecutionForbidden())
return;
initScriptIfNeeded();
JSLock lock(SilenceAssertionsOnly);
ExecState* exec = m_workerContextWrapper->globalExec();
m_workerContextWrapper->globalData().timeoutChecker.start();
JSValue evaluationException;
JSC::evaluate(exec, exec->dynamicGlobalObject()->globalScopeChain(), sourceCode.jsSourceCode(), m_workerContextWrapper.get(), &evaluationException);
m_workerContextWrapper->globalData().timeoutChecker.stop();
if ((evaluationException && isTerminatedExecutionException(evaluationException)) || m_workerContextWrapper->globalData().terminator.shouldTerminate()) {
forbidExecution();
return;
}
if (evaluationException) {
String errorMessage;
int lineNumber = 0;
String sourceURL = sourceCode.url().string();
if (m_workerContext->sanitizeScriptError(errorMessage, lineNumber, sourceURL))
*exception = ScriptValue(*m_globalData, throwError(exec, createError(exec, errorMessage.impl())));
else
*exception = ScriptValue(*m_globalData, evaluationException);
}
}
void QtField::setValueToInstance(ExecState* exec, const Instance* inst, JSValue aValue) const
{
if (m_type == ChildObject) // QtScript doesn't allow setting to a named child
return;
const QtInstance* instance = static_cast<const QtInstance*>(inst);
QObject* obj = instance->getObject();
if (obj) {
QMetaType::Type argtype = QMetaType::Void;
if (m_type == MetaProperty)
#if HAVE(QT5)
argtype = (QMetaType::Type) m_property.userType();
#else
argtype = (QMetaType::Type) QMetaType::type(m_property.typeName());
#endif
// dynamic properties just get any QVariant
QVariant val = convertValueToQVariant(exec, aValue, argtype, 0);
if (m_type == MetaProperty) {
if (m_property.isWritable())
m_property.write(obj, val);
}
#ifndef QT_NO_PROPERTIES
else if (m_type == DynamicProperty)
obj->setProperty(m_dynamicProperty.constData(), val);
#endif
} else {
QString msg = QString(QLatin1String("cannot access member `%1' of deleted QObject")).arg(QLatin1String(name()));
throwError(exec, createError(exec, msg.toLatin1().constData()));
}
}
// Shared implementation used by test and exec.
bool RegExpObject::match(ExecState* exec)
{
RegExpConstructor* regExpConstructor = exec->lexicalGlobalObject()->regExpConstructor();
UString input = !exec->argumentCount() ? regExpConstructor->input() : exec->argument(0).toString(exec);
if (input.isNull()) {
throwError(exec, createError(exec, makeString("No input to ", toString(exec), ".")));
return false;
}
if (!regExp()->global()) {
int position;
int length;
regExpConstructor->performMatch(d->regExp.get(), input, 0, position, length);
return position >= 0;
}
if (d->lastIndex < 0 || d->lastIndex > input.length()) {
d->lastIndex = 0;
return false;
}
int position;
int length = 0;
regExpConstructor->performMatch(d->regExp.get(), input, static_cast<int>(d->lastIndex), position, length);
if (position < 0) {
d->lastIndex = 0;
return false;
}
d->lastIndex = position + length;
return true;
}
void WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, ScriptValue* exception)
{
if (isExecutionForbidden())
return;
initScriptIfNeeded();
ExecState* exec = m_workerContextWrapper->globalExec();
JSLockHolder lock(exec);
JSValue evaluationException;
JSC::evaluate(exec, sourceCode.jsSourceCode(), m_workerContextWrapper.get(), &evaluationException);
if ((evaluationException && isTerminatedExecutionException(evaluationException)) || m_workerContextWrapper->vm().watchdog.didFire()) {
forbidExecution();
return;
}
if (evaluationException) {
String errorMessage;
int lineNumber = 0;
String sourceURL = sourceCode.url().string();
if (m_workerContext->sanitizeScriptError(errorMessage, lineNumber, sourceURL, sourceCode.cachedScript()))
*exception = ScriptValue(*m_vm, throwError(exec, createError(exec, errorMessage.impl())));
else
*exception = ScriptValue(*m_vm, evaluationException);
}
}
JSValue* createStackOverflowError(ExecState* exec)
{
//Note by Arpit Baldeva:07/16/09. Added this assert to indicate to the users that the JavaScript has exceeded
//statck size. This is because EAWebkit users can explicitly set the stack size for JavaScript usage.
ASSERT_WITH_MESSAGE(false, "JavaScript Stack overflowed. Please increase the stack size");
return createError(exec, RangeError, "Maximum call stack size exceeded.");
}
JSValue IntlNumberFormat::formatNumber(ExecState& state, double number)
{
VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
// 11.3.4 FormatNumber abstract operation (ECMA-402 2.0)
if (!m_initializedNumberFormat)
return throwTypeError(&state, scope, "Intl.NumberFormat.prototype.format called on value that's not an object initialized as a NumberFormat"_s);
// Map negative zero to positive zero.
if (!number)
number = 0.0;
UErrorCode status = U_ZERO_ERROR;
Vector<UChar, 32> buffer(32);
auto length = unum_formatDouble(m_numberFormat.get(), number, buffer.data(), buffer.size(), nullptr, &status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
buffer.grow(length);
status = U_ZERO_ERROR;
unum_formatDouble(m_numberFormat.get(), number, buffer.data(), length, nullptr, &status);
}
if (U_FAILURE(status))
return throwException(&state, scope, createError(&state, "Failed to format a number."_s));
return jsString(&state, String(buffer.data(), length));
}
JSValue QtField::valueFromInstance(ExecState* exec, const Instance* inst) const
{
const QtInstance* instance = static_cast<const QtInstance*>(inst);
QObject* obj = instance->getObject();
if (obj) {
QVariant val;
if (m_type == MetaProperty) {
if (m_property.isReadable())
val = m_property.read(obj);
else
return jsUndefined();
} else if (m_type == ChildObject)
val = QVariant::fromValue((QObject*) m_childObject.data());
#ifndef QT_NO_PROPERTIES
else if (m_type == DynamicProperty)
val = obj->property(m_dynamicProperty);
#endif
JSValueRef exception = 0;
JSValueRef jsValue = convertQVariantToValue(toRef(exec), inst->rootObject(), val, &exception);
if (exception)
return exec->vm().throwException(exec, toJS(exec, exception));
return toJS(exec, jsValue);
}
QString msg = QString(QLatin1String("cannot access member `%1' of deleted QObject")).arg(QLatin1String(name()));
return exec->vm().throwException(exec, createError(exec, msg.toLatin1().constData()));
}
void WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, NakedPtr<JSC::Exception>& returnedException)
{
if (isExecutionForbidden())
return;
initScriptIfNeeded();
ExecState* exec = m_workerGlobalScopeWrapper->globalExec();
JSLockHolder lock(exec);
JSC::evaluate(exec, sourceCode.jsSourceCode(), m_workerGlobalScopeWrapper->globalThis(), returnedException);
VM& vm = exec->vm();
if ((returnedException && isTerminatedExecutionException(returnedException)) || isTerminatingExecution()) {
forbidExecution();
return;
}
if (returnedException) {
String errorMessage;
int lineNumber = 0;
int columnNumber = 0;
String sourceURL = sourceCode.url().string();
if (m_workerGlobalScope->sanitizeScriptError(errorMessage, lineNumber, columnNumber, sourceURL, sourceCode.cachedScript())) {
vm.throwException(exec, createError(exec, errorMessage.impl()));
returnedException = vm.exception();
vm.clearException();
}
}
}
Poco::JSON::Object::Ptr ClusterQueueManagerMapper::suspend()
{
createCommand(MQCMD_SUSPEND_Q_MGR_CLUSTER);
// Required parameters
addParameter<std::string>(MQCA_CLUSTER_NAME, "ClusterName");
addParameter<std::string>(MQCA_CLUSTER_NAMELIST, "ClusterNamelist");
// Optional parameters
addParameter<std::string>(MQCACF_COMMAND_SCOPE, "CommandScope");
addAttributeList(MQIACF_MODE, "Mode");
PCF::Vector commandResponse;
execute(commandResponse);
if ( commandResponse.size() > 0 )
{
PCF::Vector::iterator it = commandResponse.begin();
if ( (*it)->getReasonCode() != MQRC_NONE )
{
return createError(**it);
}
}
return new Poco::JSON::Object();
}
static Expected<StringRef> getDynamicStrTab(const ELFFile<ELFT> *Elf) {
auto DynamicEntriesOrError = Elf->dynamicEntries();
if (!DynamicEntriesOrError)
return DynamicEntriesOrError.takeError();
for (const typename ELFT::Dyn &Dyn : *DynamicEntriesOrError) {
if (Dyn.d_tag == ELF::DT_STRTAB) {
auto MappedAddrOrError = Elf->toMappedAddr(Dyn.getPtr());
if (!MappedAddrOrError)
consumeError(MappedAddrOrError.takeError());
return StringRef(reinterpret_cast<const char *>(*MappedAddrOrError));
}
}
// If the dynamic segment is not present, we fall back on the sections.
auto SectionsOrError = Elf->sections();
if (!SectionsOrError)
return SectionsOrError.takeError();
for (const typename ELFT::Shdr &Sec : *SectionsOrError) {
if (Sec.sh_type == ELF::SHT_DYNSYM)
return Elf->getStringTableForSymtab(Sec);
}
return createError("dynamic string table not found");
}
JSValue JSNPObject::callConstructor(ExecState* exec)
{
ASSERT_GC_OBJECT_INHERITS(this, &s_info);
if (!m_npObject)
return throwInvalidAccessError(exec);
size_t argumentCount = exec->argumentCount();
Vector<NPVariant, 8> arguments(argumentCount);
// Convert all arguments to NPVariants.
for (size_t i = 0; i < argumentCount; ++i)
m_objectMap->convertJSValueToNPVariant(exec, exec->argument(i), arguments[i]);
// Calling NPClass::construct will call into plug-in code, and there's no telling what the plug-in can do.
// (including destroying the plug-in). Because of this, we make sure to keep the plug-in alive until
// the call has finished.
NPRuntimeObjectMap::PluginProtector protector(m_objectMap);
bool returnValue;
NPVariant result;
VOID_TO_NPVARIANT(result);
{
JSLock::DropAllLocks dropAllLocks(SilenceAssertionsOnly);
returnValue = m_npObject->_class->construct(m_npObject, arguments.data(), argumentCount, &result);
NPRuntimeObjectMap::moveGlobalExceptionToExecState(exec);
}
if (!returnValue)
throwError(exec, createError(exec, "Error calling method on NPObject."));
JSValue value = m_objectMap->convertNPVariantToJSValue(exec, globalObject(), result);
releaseNPVariantValue(&result);
return value;
}
// ECMA 8.6.2.2
void JSObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
{
ASSERT(value);
ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
if (propertyName == exec->propertyNames().underscoreProto) {
// Setting __proto__ to a non-object, non-null value is silently ignored to match Mozilla.
if (!value.isObject() && !value.isNull())
return;
if (!setPrototypeWithCycleCheck(value))
throwError(exec, createError(exec, "cyclic __proto__ value"));
return;
}
// Check if there are any setters or getters in the prototype chain
JSValue prototype;
for (JSObject* obj = this; !obj->structure()->hasGetterSetterProperties(); obj = asObject(prototype)) {
prototype = obj->prototype();
if (prototype.isNull()) {
putDirectInternal(exec->globalData(), propertyName, value, 0, true, slot);
return;
}
}
unsigned attributes;
JSCell* specificValue;
if ((m_structure->get(propertyName, attributes, specificValue) != WTF::notFound) && attributes & ReadOnly)
return;
for (JSObject* obj = this; ; obj = asObject(prototype)) {
if (JSValue gs = obj->getDirect(propertyName)) {
if (gs.isGetterSetter()) {
JSObject* setterFunc = asGetterSetter(gs)->setter();
if (!setterFunc) {
throwSetterError(exec);
return;
}
CallData callData;
CallType callType = setterFunc->getCallData(callData);
MarkedArgumentBuffer args;
args.append(value);
call(exec, setterFunc, callType, callData, this, args);
return;
}
// If there's an existing property on the object or one of its
// prototypes it should be replaced, so break here.
break;
}
prototype = obj->prototype();
if (prototype.isNull())
break;
}
putDirectInternal(exec->globalData(), propertyName, value, 0, true, slot);
return;
}
GTEST_TEST(ExpectedTest, nested_errors_example) {
const auto msg = std::string{"Write a good error message"};
auto firstFailureSource = [&msg]() -> Expected<std::vector<int>, TestError> {
return createError(TestError::Semantic, msg);
};
auto giveMeNestedError = [&]() -> Expected<std::vector<int>, TestError> {
auto ret = firstFailureSource();
ret.isError();
return createError(TestError::Runtime, msg, ret.takeError());
};
auto ret = giveMeNestedError();
EXPECT_FALSE(ret);
ASSERT_TRUE(ret.isError());
EXPECT_EQ(ret.getErrorCode(), TestError::Runtime);
ASSERT_TRUE(ret.getError().hasUnderlyingError());
EXPECT_PRED2(stringContains, ret.getError().getFullMessage(), msg);
}
GTEST_TEST(ExpectedTest, error_takeOr_with_rvalue_as_an_argument) {
auto value = int{312};
auto callable = []() -> Expected<int, TestError> {
return createError(TestError::Logical, "error message");
};
value = callable().takeOr(value);
EXPECT_EQ(value, 312);
}
JSValue IntlCollator::compareStrings(ExecState& state, StringView x, StringView y)
{
// 10.3.4 CompareStrings abstract operation (ECMA-402 2.0)
if (!m_collator) {
createCollator(state);
if (!m_collator)
return state.vm().throwException(&state, createError(&state, ASCIILiteral("Failed to compare strings.")));
}
UErrorCode status = U_ZERO_ERROR;
UCharIterator iteratorX = createIterator(x);
UCharIterator iteratorY = createIterator(y);
auto result = ucol_strcollIter(m_collator, &iteratorX, &iteratorY, &status);
if (U_FAILURE(status))
return state.vm().throwException(&state, createError(&state, ASCIILiteral("Failed to compare strings.")));
return jsNumber(result);
}
Expected<StorageType, DatabaseError> InMemoryStorage<StorageType>::get(
const std::string& key) const {
auto iter = storage_.find(key);
if (iter != storage_.end()) {
return iter->second;
}
return createError(DatabaseError::KeyNotFound, "Can't find value for key ")
<< key;
}
GitCredentialResponse GitCredentialResponse::createForDefault()
{
git_cred *cred;
if (git_cred_default_new(&cred) < 0) {
return createError();
} else {
return GitCredentialResponse(cred);
}
}
GitCredentialResponse GitCredentialResponse::createForUsername(const QString &username)
{
git_cred *cred;
if (git_cred_username_new(&cred, username.toLocal8Bit().constData()) < 0) {
return createError();
} else {
return GitCredentialResponse(cred);
}
}
GitCredentialResponse GitCredentialResponse::createForUsernamePassword(const QString &username, const QString &password)
{
git_cred *cred;
if (git_cred_userpass_plaintext_new(&cred,
username.toLocal8Bit().constData(),
password.toLocal8Bit().constData()) < 0) {
return createError();
} else {
return GitCredentialResponse(cred);
}
}
void NPRuntimeObjectMap::moveGlobalExceptionToExecState(ExecState* exec)
{
if (globalExceptionString().isNull())
return;
{
JSLockHolder lock(exec);
exec->vm().throwException(exec, createError(exec, globalExceptionString()));
}
globalExceptionString() = String();
}
GitCredentialResponse GitCredentialResponse::createForSSHKey(const QString &username, const QString &pubkeyPath, const QString &privkeyPath, const QString &passthrase)
{
git_cred *cred;
if (git_cred_ssh_key_new(&cred,
username.toLocal8Bit().constData(),
pubkeyPath.toLocal8Bit().constData(),
privkeyPath.toLocal8Bit().constData(),
passthrase.toLocal8Bit().constData()) < 0) {
return createError();
} else {
return GitCredentialResponse(cred);
}
}
Error parseExport() {
COFFShortExport E;
E.Name = Tok.Value;
read();
if (Tok.K == Equal) {
read();
if (Tok.K != Identifier)
return createError("identifier expected, but got " + Tok.Value);
E.ExtName = E.Name;
E.Name = Tok.Value;
} else {
unget();
}
if (Machine == IMAGE_FILE_MACHINE_I386) {
if (!isDecorated(E.Name, MingwDef))
E.Name = (std::string("_").append(E.Name));
if (!E.ExtName.empty() && !isDecorated(E.ExtName, MingwDef))
E.ExtName = (std::string("_").append(E.ExtName));
}
for (;;) {
read();
if (Tok.K == Identifier && Tok.Value[0] == '@') {
Tok.Value.drop_front().getAsInteger(10, E.Ordinal);
read();
if (Tok.K == KwNoname) {
E.Noname = true;
} else {
unget();
}
continue;
}
if (Tok.K == KwData) {
E.Data = true;
continue;
}
if (Tok.K == KwConstant) {
E.Constant = true;
continue;
}
if (Tok.K == KwPrivate) {
E.Private = true;
continue;
}
unget();
Info.Exports.push_back(E);
return Error::success();
}
}
GTEST_TEST(ExpectedTest, error__takeOr_with_user_defined_class) {
class SomeTestClass {
public:
explicit SomeTestClass(const std::string& prefix, const std::string& sufix)
: text{prefix + " - " + sufix} {}
std::string text;
};
auto callable = []() -> Expected<SomeTestClass, TestError> {
return createError(TestError::Semantic, "error message");
};
EXPECT_EQ(callable().takeOr(SomeTestClass("427 BC", "347 BC")).text,
"427 BC - 347 BC");
}
EncodedJSValue JSC_HOST_CALL jsConsolePrototypeFunctionDebug(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
JSConsole* castedThis = static_cast<JSConsole*>(asObject(thisValue));
Console* imp = static_cast<Console*>(castedThis->impl());
unsigned count = exec->argumentCount();
Vector<NPVariant, 8> cArgs(count);
unsigned i;
for (i = 0; i < count; i++)
JSC::Bindings::convertValueToNPVariant(exec, exec->argument(i), &cArgs[i]);
// Invoke the 'C' method.
bool retval = true;
NPVariant resultVariant;
VOID_TO_NPVARIANT(resultVariant);
{
JSLock::DropAllLocks dropAllLocks(SilenceAssertionsOnly);
//ASSERT(JSC::Bindings::globalExceptionString().isNull());
NPInvokeFunctionPtr ptr = (NPInvokeFunctionPtr)(imp->frame()->page()->chrome()->client()->getJavascriptCallCppCallback());
retval = ptr(0, 0, cArgs.data(), count, &resultVariant);
//CInstance::moveGlobalExceptionToExecState(exec);
}
if (!retval)
throwError(exec, createError(exec, "Error calling method on NPObject."));
for (i = 0; i < count; i++)
_NPN_ReleaseVariantValue(&cArgs[i]);
JSValue resultValue = JSC::Bindings::convertNPVariantToValue(exec, &resultVariant, 0);
_NPN_ReleaseVariantValue(&resultVariant);
return resultValue;
// JSValue thisValue = exec->hostThisValue();
// if (!thisValue.inherits(&JSConsole::s_info))
// return throwVMTypeError(exec);
// JSConsole* castedThis = static_cast<JSConsole*>(asObject(thisValue));
// Console* imp = static_cast<Console*>(castedThis->impl());
// RefPtr<ScriptArguments> scriptArguments(createScriptArguments(exec, 0));
// size_t maxStackSize = imp->shouldCaptureFullStackTrace() ? ScriptCallStack::maxCallStackSizeToCapture : 1;
// RefPtr<ScriptCallStack> callStack(createScriptCallStack(exec, maxStackSize));
//
// imp->debug(scriptArguments, callStack);
// return JSValue::encode(jsUndefined());
}
// Call this only if you know that exception fuzzing is enabled.
void doExceptionFuzzing(ExecState* exec, const char* where, void* returnPC)
{
ASSERT(Options::useExceptionFuzz());
DeferGCForAWhile deferGC(exec->vm().heap);
s_numberOfExceptionFuzzChecks++;
unsigned fireTarget = Options::fireExceptionFuzzAt();
if (fireTarget == s_numberOfExceptionFuzzChecks) {
printf("JSC EXCEPTION FUZZ: Throwing fuzz exception with call frame %p, seen in %s and return address %p.\n", exec, where, returnPC);
exec->vm().throwException(
exec, createError(exec, ASCIILiteral("Exception Fuzz")));
}
}
Expected<int32_t, DatabaseError> Database::getInt32(const std::string& domain,
const std::string& key) {
Expected<std::string, DatabaseError> string_value = getString(domain, key);
if (string_value) {
auto value = tryTo<int32_t>(*string_value);
if (value) {
return *value;
} else {
return createError(DatabaseError::FailToReadData,
"Failed to convert string to int",
value.takeError());
}
} else {
return string_value.takeError();
}
}