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/*
* Copyright (C) 2021-2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "SharedWorkerScriptLoader.h"
#include "ContextDestructionObserverInlines.h"
#include "EventNames.h"
#include "InspectorInstrumentation.h"
#include "SharedWorker.h"
#include "WorkerFetchResult.h"
#include "WorkerInitializationData.h"
#include "WorkerRunLoop.h"
#include "WorkerScriptLoader.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(SharedWorkerScriptLoader);
Ref<SharedWorkerScriptLoader> SharedWorkerScriptLoader::create(URL&& url, SharedWorker& worker, WorkerOptions&& options)
{
return adoptRef(*new SharedWorkerScriptLoader(WTFMove(url), worker, WTFMove(options)));
}
SharedWorkerScriptLoader::SharedWorkerScriptLoader(URL&& url, SharedWorker& worker, WorkerOptions&& options)
: m_options(WTFMove(options))
, m_worker(worker)
, m_loader(WorkerScriptLoader::create())
, m_url(WTFMove(url))
{
}
void SharedWorkerScriptLoader::load(CompletionHandler<void(WorkerFetchResult&&, WorkerInitializationData&&)>&& completionHandler)
{
ASSERT(!m_completionHandler);
m_completionHandler = WTFMove(completionHandler);
auto source = m_options.type == WorkerType::Module ? WorkerScriptLoader::Source::ModuleScript : WorkerScriptLoader::Source::ClassicWorkerScript;
m_loader->loadAsynchronously(*m_worker->protectedScriptExecutionContext(), ResourceRequest(URL { m_url }), source, m_worker->workerFetchOptions(m_options, FetchOptions::Destination::Sharedworker), ContentSecurityPolicyEnforcement::EnforceWorkerSrcDirective, ServiceWorkersMode::All, *this, WorkerRunLoop::defaultMode(), ScriptExecutionContextIdentifier::generate());
}
void SharedWorkerScriptLoader::didReceiveResponse(ScriptExecutionContextIdentifier mainContextIdentifier, std::optional<ResourceLoaderIdentifier> identifier, const ResourceResponse&)
{
if (InspectorInstrumentation::hasFrontends()) [[unlikely]] {
ScriptExecutionContext::ensureOnContextThread(mainContextIdentifier, [identifier] (auto& mainContext) {
InspectorInstrumentation::didReceiveScriptResponse(mainContext, *identifier);
});
}
}
void SharedWorkerScriptLoader::notifyFinished(std::optional<ScriptExecutionContextIdentifier> mainContextIdentifier)
{
RefPtr scriptExecutionContext = m_worker->scriptExecutionContext();
if (InspectorInstrumentation::hasFrontends()) [[unlikely]] {
if (scriptExecutionContext && !m_loader->failed()) {
ScriptExecutionContext::ensureOnContextThread(*mainContextIdentifier, [identifier = m_loader->identifier(), script = m_loader->script().isolatedCopy()] (auto& mainContext) {
InspectorInstrumentation::scriptImported(mainContext, identifier, script.toString());
});
}
}
auto fetchResult = m_loader->fetchResult();
if (fetchResult.referrerPolicy.isNull() && scriptExecutionContext)
fetchResult.referrerPolicy = referrerPolicyToString(scriptExecutionContext->referrerPolicy());
m_completionHandler(WTFMove(fetchResult), WorkerInitializationData {
m_loader->takeServiceWorkerData(),
m_loader->clientIdentifier(),
m_loader->advancedPrivacyProtections(),
m_loader->userAgentForSharedWorker()
}); // deletes this.
}
} // namespace WebCore
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