LoadableClassicScript.cpp [plain text]
#include "config.h"
#include "LoadableClassicScript.h"
#include "ScriptElement.h"
#include "ScriptSourceCode.h"
#include <wtf/NeverDestroyed.h>
#include <wtf/text/StringImpl.h>
namespace WebCore {
Ref<LoadableClassicScript> LoadableClassicScript::create(CachedResourceHandle<CachedScript>&& cachedScript)
{
ASSERT(cachedScript);
auto script = adoptRef(*new LoadableClassicScript(WTFMove(cachedScript)));
cachedScript->addClient(script.get());
return script;
}
LoadableClassicScript::~LoadableClassicScript()
{
m_cachedScript->removeClient(*this);
}
bool LoadableClassicScript::isLoaded() const
{
return m_cachedScript->isLoaded();
}
std::optional<LoadableScript::Error> LoadableClassicScript::error() const
{
if (m_error)
return m_error;
if (m_cachedScript->errorOccurred())
return Error { ErrorType::CachedScript, std::nullopt };
return std::nullopt;
}
bool LoadableClassicScript::wasCanceled() const
{
return m_cachedScript->wasCanceled();
}
void LoadableClassicScript::notifyFinished(CachedResource& resource)
{
if (resource.resourceError().isAccessControl()) {
static NeverDestroyed<String> consoleMessage(ASCIILiteral("Cross-origin script load denied by Cross-Origin Resource Sharing policy."));
m_error = Error {
ErrorType::CrossOriginLoad,
ConsoleMessage {
MessageSource::JS,
MessageLevel::Error,
consoleMessage
}
};
}
#if ENABLE(NOSNIFF)
if (!m_error && !m_cachedScript->mimeTypeAllowedByNosniff()) {
m_error = Error {
ErrorType::Nosniff,
ConsoleMessage {
MessageSource::Security,
MessageLevel::Error,
makeString(
"Refused to execute script from '", m_cachedScript->url().stringCenterEllipsizedToLength(),
"' because its MIME type ('", m_cachedScript->mimeType(), "') is not executable, and strict MIME type checking is enabled.")
}
};
}
#endif
notifyClientFinished();
}
void LoadableClassicScript::execute(ScriptElement& scriptElement)
{
ASSERT(!error());
scriptElement.executeClassicScript(ScriptSourceCode(m_cachedScript.get(), JSC::SourceProviderSourceType::Program));
}
}