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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "modules/serviceworkers/FetchEvent.h"
#include "bindings/core/v8/ScriptState.h"
#include "bindings/core/v8/ToV8.h"
#include "bindings/core/v8/V8HiddenValue.h"
#include "modules/fetch/BytesConsumerForDataConsumerHandle.h"
#include "modules/fetch/Request.h"
#include "modules/fetch/Response.h"
#include "modules/serviceworkers/ServiceWorkerError.h"
#include "modules/serviceworkers/ServiceWorkerGlobalScope.h"
#include "public/platform/WebURLResponse.h"
#include "public/platform/modules/serviceworker/WebServiceWorkerError.h"
#include "wtf/PtrUtil.h"
#include "wtf/RefPtr.h"
namespace blink {
FetchEvent* FetchEvent::create(ScriptState* scriptState,
const AtomicString& type,
const FetchEventInit& initializer) {
return new FetchEvent(scriptState, type, initializer, nullptr, nullptr,
false);
}
FetchEvent* FetchEvent::create(ScriptState* scriptState,
const AtomicString& type,
const FetchEventInit& initializer,
RespondWithObserver* respondWithObserver,
WaitUntilObserver* waitUntilObserver,
bool navigationPreloadSent) {
return new FetchEvent(scriptState, type, initializer, respondWithObserver,
waitUntilObserver, navigationPreloadSent);
}
Request* FetchEvent::request() const {
return m_request;
}
String FetchEvent::clientId() const {
return m_clientId;
}
bool FetchEvent::isReload() const {
return m_isReload;
}
void FetchEvent::respondWith(ScriptState* scriptState,
ScriptPromise scriptPromise,
ExceptionState& exceptionState) {
stopImmediatePropagation();
if (m_observer)
m_observer->respondWith(scriptState, scriptPromise, exceptionState);
}
ScriptPromise FetchEvent::preloadResponse(ScriptState* scriptState) {
return m_preloadResponseProperty->promise(scriptState->world());
}
const AtomicString& FetchEvent::interfaceName() const {
return EventNames::FetchEvent;
}
FetchEvent::FetchEvent(ScriptState* scriptState,
const AtomicString& type,
const FetchEventInit& initializer,
RespondWithObserver* respondWithObserver,
WaitUntilObserver* waitUntilObserver,
bool navigationPreloadSent)
: ExtendableEvent(type, initializer, waitUntilObserver),
m_observer(respondWithObserver),
m_preloadResponseProperty(new PreloadResponseProperty(
scriptState->getExecutionContext(),
this,
PreloadResponseProperty::PreloadResponse)) {
if (!navigationPreloadSent)
m_preloadResponseProperty->resolveWithUndefined();
m_clientId = initializer.clientId();
m_isReload = initializer.isReload();
if (initializer.hasRequest()) {
ScriptState::Scope scope(scriptState);
m_request = initializer.request();
v8::Local<v8::Value> request = ToV8(m_request, scriptState);
v8::Local<v8::Value> event = ToV8(this, scriptState);
if (event.IsEmpty()) {
// |toV8| can return an empty handle when the worker is terminating.
// We don't want the renderer to crash in such cases.
// TODO(yhirano): Replace this branch with an assertion when the
// graceful shutdown mechanism is introduced.
return;
}
DCHECK(event->IsObject());
// Sets a hidden value in order to teach V8 the dependency from
// the event to the request.
V8HiddenValue::setHiddenValue(
scriptState, event.As<v8::Object>(),
V8HiddenValue::requestInFetchEvent(scriptState->isolate()), request);
// From the same reason as above, setHiddenValue can return false.
// TODO(yhirano): Add an assertion that it returns true once the
// graceful shutdown mechanism is introduced.
}
}
void FetchEvent::onNavigationPreloadResponse(
ScriptState* scriptState,
std::unique_ptr<WebURLResponse> response,
std::unique_ptr<WebDataConsumerHandle> dataConsumeHandle) {
if (!scriptState->contextIsValid())
return;
DCHECK(m_preloadResponseProperty);
ScriptState::Scope scope(scriptState);
FetchResponseData* responseData = FetchResponseData::createWithBuffer(
new BodyStreamBuffer(scriptState, new BytesConsumerForDataConsumerHandle(
scriptState->getExecutionContext(),
std::move(dataConsumeHandle))));
Vector<KURL> urlList(1);
urlList[0] = response->url();
responseData->setURLList(urlList);
responseData->setStatus(response->httpStatusCode());
responseData->setStatusMessage(response->httpStatusText());
responseData->setResponseTime(response->toResourceResponse().responseTime());
const HTTPHeaderMap& headers(
response->toResourceResponse().httpHeaderFields());
for (const auto& header : headers) {
responseData->headerList()->append(header.key, header.value);
}
FetchResponseData* taintedResponse =
responseData->createBasicFilteredResponse();
m_preloadResponseProperty->resolve(
Response::create(scriptState->getExecutionContext(), taintedResponse));
}
void FetchEvent::onNavigationPreloadError(
ScriptState* scriptState,
std::unique_ptr<WebServiceWorkerError> error) {
if (!scriptState->contextIsValid())
return;
DCHECK(m_preloadResponseProperty);
m_preloadResponseProperty->reject(
ServiceWorkerError::take(nullptr, *error.get()));
}
DEFINE_TRACE(FetchEvent) {
visitor->trace(m_observer);
visitor->trace(m_request);
visitor->trace(m_preloadResponseProperty);
ExtendableEvent::trace(visitor);
}
} // namespace blink
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