WorkerThreadableLoader.cpp [plain text]
#include "config.h"
#include "WorkerThreadableLoader.h"
#include "ContentSecurityPolicy.h"
#include "Document.h"
#include "DocumentThreadableLoader.h"
#include "ResourceError.h"
#include "ResourceRequest.h"
#include "ResourceResponse.h"
#include "SecurityOrigin.h"
#include "ThreadableLoader.h"
#include "WorkerGlobalScope.h"
#include "WorkerLoaderProxy.h"
#include "WorkerThread.h"
#include <wtf/MainThread.h>
#include <wtf/Vector.h>
namespace WebCore {
static const char loadResourceSynchronouslyMode[] = "loadResourceSynchronouslyMode";
WorkerThreadableLoader::WorkerThreadableLoader(WorkerGlobalScope* workerGlobalScope, ThreadableLoaderClient* client, const String& taskMode, const ResourceRequest& request, const ThreadableLoaderOptions& options)
: m_workerGlobalScope(workerGlobalScope)
, m_workerClientWrapper(ThreadableLoaderClientWrapper::create(client))
, m_bridge(*new MainThreadBridge(*m_workerClientWrapper, workerGlobalScope->thread().workerLoaderProxy(), taskMode, request, options, workerGlobalScope->url().strippedForUseAsReferrer(), workerGlobalScope->securityOrigin(), workerGlobalScope->contentSecurityPolicy()))
{
}
WorkerThreadableLoader::~WorkerThreadableLoader()
{
m_bridge.destroy();
}
void WorkerThreadableLoader::loadResourceSynchronously(WorkerGlobalScope* workerGlobalScope, const ResourceRequest& request, ThreadableLoaderClient& client, const ThreadableLoaderOptions& options)
{
WorkerRunLoop& runLoop = workerGlobalScope->thread().runLoop();
String mode = loadResourceSynchronouslyMode;
mode.append(String::number(runLoop.createUniqueId()));
RefPtr<WorkerThreadableLoader> loader = WorkerThreadableLoader::create(workerGlobalScope, &client, mode, request, options);
MessageQueueWaitResult result = MessageQueueMessageReceived;
while (!loader->done() && result != MessageQueueTerminated)
result = runLoop.runInMode(workerGlobalScope, mode);
if (!loader->done() && result == MessageQueueTerminated)
loader->cancel();
}
void WorkerThreadableLoader::cancel()
{
m_bridge.cancel();
}
struct LoaderTaskOptions {
LoaderTaskOptions(const ThreadableLoaderOptions&, const String&, const SecurityOrigin&);
ThreadableLoaderOptions options;
String referrer;
RefPtr<SecurityOrigin> origin;
};
LoaderTaskOptions::LoaderTaskOptions(const ThreadableLoaderOptions& options, const String& referrer, const SecurityOrigin& origin)
: options(options, options.preflightPolicy, options.crossOriginRequestPolicy, options.contentSecurityPolicyEnforcement, options.initiator.isolatedCopy())
, referrer(referrer.isolatedCopy())
, origin(origin.isolatedCopy())
{
}
WorkerThreadableLoader::MainThreadBridge::MainThreadBridge(ThreadableLoaderClientWrapper& workerClientWrapper, WorkerLoaderProxy& loaderProxy, const String& taskMode,
const ResourceRequest& request, const ThreadableLoaderOptions& options, const String& outgoingReferrer,
const SecurityOrigin* securityOrigin, const ContentSecurityPolicy* contentSecurityPolicy)
: m_workerClientWrapper(&workerClientWrapper)
, m_loaderProxy(loaderProxy)
, m_taskMode(taskMode.isolatedCopy())
{
ASSERT(securityOrigin);
ASSERT(contentSecurityPolicy);
auto contentSecurityPolicyCopy = std::make_unique<ContentSecurityPolicy>(*securityOrigin);
contentSecurityPolicyCopy->copyStateFrom(contentSecurityPolicy);
auto optionsCopy = std::make_unique<LoaderTaskOptions>(options, outgoingReferrer, *securityOrigin);
m_loaderProxy.postTaskToLoader([this, request = request.isolatedCopy(), options = WTFMove(optionsCopy), contentSecurityPolicyCopy = WTFMove(contentSecurityPolicyCopy)](ScriptExecutionContext& context) mutable {
ASSERT(isMainThread());
Document& document = downcast<Document>(context);
request.setHTTPReferrer(options->referrer);
m_mainThreadLoader = DocumentThreadableLoader::create(document, *this, request, options->options, WTFMove(options->origin), WTFMove(contentSecurityPolicyCopy));
ASSERT(m_mainThreadLoader || m_loadingFinished);
});
}
void WorkerThreadableLoader::MainThreadBridge::destroy()
{
clearClientWrapper();
m_loaderProxy.postTaskToLoader([self = std::unique_ptr<WorkerThreadableLoader::MainThreadBridge>(this)] (ScriptExecutionContext& context) {
ASSERT(isMainThread());
ASSERT_UNUSED(context, context.isDocument());
});
}
void WorkerThreadableLoader::MainThreadBridge::cancel()
{
m_loaderProxy.postTaskToLoader([this] (ScriptExecutionContext& context) {
ASSERT(isMainThread());
ASSERT_UNUSED(context, context.isDocument());
if (!m_mainThreadLoader)
return;
m_mainThreadLoader->cancel();
m_mainThreadLoader = nullptr;
});
ThreadableLoaderClientWrapper* clientWrapper = m_workerClientWrapper.get();
if (!clientWrapper->done()) {
ResourceError error(ResourceError::Type::Cancellation);
clientWrapper->didFail(error);
}
clearClientWrapper();
}
void WorkerThreadableLoader::MainThreadBridge::clearClientWrapper()
{
m_workerClientWrapper->clearClient();
}
void WorkerThreadableLoader::MainThreadBridge::didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent)
{
Ref<ThreadableLoaderClientWrapper> protectedWorkerClientWrapper = *m_workerClientWrapper;
m_loaderProxy.postTaskForModeToWorkerGlobalScope([protectedWorkerClientWrapper = WTFMove(protectedWorkerClientWrapper), bytesSent, totalBytesToBeSent] (ScriptExecutionContext& context) mutable {
ASSERT_UNUSED(context, context.isWorkerGlobalScope());
protectedWorkerClientWrapper->didSendData(bytesSent, totalBytesToBeSent);
}, m_taskMode);
}
void WorkerThreadableLoader::MainThreadBridge::didReceiveResponse(unsigned long identifier, const ResourceResponse& response)
{
Ref<ThreadableLoaderClientWrapper> protectedWorkerClientWrapper = *m_workerClientWrapper;
m_loaderProxy.postTaskForModeToWorkerGlobalScope([protectedWorkerClientWrapper = WTFMove(protectedWorkerClientWrapper), identifier, responseData = response.crossThreadData()] (ScriptExecutionContext& context) mutable {
ASSERT_UNUSED(context, context.isWorkerGlobalScope());
protectedWorkerClientWrapper->didReceiveResponse(identifier, ResourceResponse::fromCrossThreadData(WTFMove(responseData)));
}, m_taskMode);
}
void WorkerThreadableLoader::MainThreadBridge::didReceiveData(const char* data, int dataLength)
{
Ref<ThreadableLoaderClientWrapper> protectedWorkerClientWrapper = *m_workerClientWrapper;
Vector<char> vector(dataLength);
memcpy(vector.data(), data, dataLength);
m_loaderProxy.postTaskForModeToWorkerGlobalScope([protectedWorkerClientWrapper = WTFMove(protectedWorkerClientWrapper), vector = WTFMove(vector)] (ScriptExecutionContext& context) mutable {
ASSERT_UNUSED(context, context.isWorkerGlobalScope());
protectedWorkerClientWrapper->didReceiveData(vector.data(), vector.size());
}, m_taskMode);
}
void WorkerThreadableLoader::MainThreadBridge::didFinishLoading(unsigned long identifier, double finishTime)
{
m_loadingFinished = true;
Ref<ThreadableLoaderClientWrapper> protectedWorkerClientWrapper = *m_workerClientWrapper;
m_loaderProxy.postTaskForModeToWorkerGlobalScope([protectedWorkerClientWrapper = WTFMove(protectedWorkerClientWrapper), identifier, finishTime] (ScriptExecutionContext& context) mutable {
ASSERT_UNUSED(context, context.isWorkerGlobalScope());
protectedWorkerClientWrapper->didFinishLoading(identifier, finishTime);
}, m_taskMode);
}
void WorkerThreadableLoader::MainThreadBridge::didFail(const ResourceError& error)
{
m_loadingFinished = true;
m_loaderProxy.postTaskForModeToWorkerGlobalScope([workerClientWrapper = Ref<ThreadableLoaderClientWrapper>(*m_workerClientWrapper), error = error.isolatedCopy()] (ScriptExecutionContext& context) mutable {
ASSERT_UNUSED(context, context.isWorkerGlobalScope());
workerClientWrapper->didFail(error);
}, m_taskMode);
}
}