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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "URLWorker.h"
#include "mozilla/dom/Blob.h"
#include "mozilla/dom/BlobImpl.h"
#include "mozilla/dom/BlobURLProtocolHandler.h"
#include "mozilla/dom/WorkerRunnable.h"
#include "mozilla/dom/WorkerScope.h"
namespace mozilla::dom {
// This class creates an URL from a DOM Blob on the main thread.
class CreateURLRunnable : public WorkerMainThreadRunnable {
private:
BlobImpl* mBlobImpl;
nsACString& mURL;
public:
CreateURLRunnable(WorkerPrivate* aWorkerPrivate, BlobImpl* aBlobImpl,
nsACString& aURL)
: WorkerMainThreadRunnable(aWorkerPrivate, "URL :: CreateURL"_ns),
mBlobImpl(aBlobImpl),
mURL(aURL) {
MOZ_ASSERT(aBlobImpl);
}
bool MainThreadRun() override {
using namespace mozilla::ipc;
MOZ_ASSERT(mWorkerRef);
WorkerPrivate* workerPrivate = mWorkerRef->Private();
AssertIsOnMainThread();
nsCOMPtr<nsIPrincipal> principal = workerPrivate->GetPrincipal();
nsCOMPtr<nsICookieJarSettings> cookieJarSettings =
workerPrivate->CookieJarSettings();
nsAutoString partKey;
cookieJarSettings->GetPartitionKey(partKey);
nsresult rv = BlobURLProtocolHandler::AddDataEntry(
mBlobImpl, principal, NS_ConvertUTF16toUTF8(partKey), mURL);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to add data entry for the blob!");
mURL.SetIsVoid(true);
return false;
}
return true;
}
};
// This class revokes an URL on the main thread.
class RevokeURLRunnable : public WorkerMainThreadRunnable {
private:
const nsCString mURL;
public:
RevokeURLRunnable(WorkerPrivate* aWorkerPrivate, const nsACString& aURL)
: WorkerMainThreadRunnable(aWorkerPrivate, "URL :: RevokeURL"_ns),
mURL(aURL) {}
bool MainThreadRun() override {
AssertIsOnMainThread();
MOZ_ASSERT(mWorkerRef);
WorkerPrivate* workerPrivate = mWorkerRef->Private();
nsCOMPtr<nsICookieJarSettings> cookieJarSettings =
workerPrivate->CookieJarSettings();
nsAutoString partKey;
cookieJarSettings->GetPartitionKey(partKey);
BlobURLProtocolHandler::RemoveDataEntry(mURL, workerPrivate->GetPrincipal(),
NS_ConvertUTF16toUTF8(partKey));
return true;
}
};
// This class checks if an URL is valid and belongs to a Blob on the main
// thread.
class IsBoundToBlobRunnable : public WorkerMainThreadRunnable {
private:
const nsCString mURL;
bool mResult;
public:
IsBoundToBlobRunnable(WorkerPrivate* aWorkerPrivate, const nsACString& aURL)
: WorkerMainThreadRunnable(aWorkerPrivate, "URL :: IsValidURL"_ns),
mURL(aURL),
mResult(false) {}
bool MainThreadRun() override {
AssertIsOnMainThread();
mResult = BlobURLProtocolHandler::HasDataEntryTypeBlob(mURL);
return true;
}
bool Result() const { return mResult; }
};
/* static */
void URLWorker::CreateObjectURL(const GlobalObject& aGlobal,
const BlobOrMediaSource& aObj,
nsACString& aResult,
mozilla::ErrorResult& aRv) {
if (!aObj.IsBlob()) {
MOZ_CRASH("MediaSource is not supported in workers");
return;
}
JSContext* cx = aGlobal.Context();
WorkerPrivate* workerPrivate = GetWorkerPrivateFromContext(cx);
RefPtr<BlobImpl> blobImpl = aObj.GetAsBlob().Impl();
MOZ_ASSERT(blobImpl);
RefPtr<CreateURLRunnable> runnable =
new CreateURLRunnable(workerPrivate, blobImpl, aResult);
runnable->Dispatch(workerPrivate, Canceling, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
WorkerGlobalScope* scope = workerPrivate->GlobalScope();
MOZ_ASSERT(scope);
scope->RegisterHostObjectURI(aResult);
}
/* static */
void URLWorker::RevokeObjectURL(const GlobalObject& aGlobal,
const nsACString& aUrl, ErrorResult& aRv) {
JSContext* cx = aGlobal.Context();
WorkerPrivate* workerPrivate = GetWorkerPrivateFromContext(cx);
RefPtr<RevokeURLRunnable> runnable =
new RevokeURLRunnable(workerPrivate, aUrl);
runnable->Dispatch(workerPrivate, Canceling, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
WorkerGlobalScope* scope = workerPrivate->GlobalScope();
MOZ_ASSERT(scope);
scope->UnregisterHostObjectURI(aUrl);
}
/* static */
bool URLWorker::IsBoundToBlob(const GlobalObject& aGlobal,
const nsACString& aUrl, ErrorResult& aRv) {
JSContext* cx = aGlobal.Context();
WorkerPrivate* workerPrivate = GetWorkerPrivateFromContext(cx);
RefPtr<IsBoundToBlobRunnable> runnable =
new IsBoundToBlobRunnable(workerPrivate, aUrl);
runnable->Dispatch(workerPrivate, Canceling, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return false;
}
return runnable->Result();
}
} // namespace mozilla::dom
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