Nika Layzell
d17ad0547f
This separates the MediaSource storage from the primary BlobImpl storage. The goal here is to separate this simpler process-local storage from the more complex cross-process store. There is very little overlap in how these two types of URLs are used, with a MediaSource URL not being usable anywhere other than in media elements. This makes performing the separation relatively straightforward. The design in this patch attaches the MediaSource storage to the DocGroup, which will limit access to the specific Window Agent. This also makes it simpler to cycle-collect than the previous global-storage based approach. Differential Revision: https://phabricator.services.mozilla.com/D268717
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/* 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 "URLMainThread.h"
|
|
|
|
#include "mozilla/dom/BindingUtils.h"
|
|
#include "mozilla/dom/Blob.h"
|
|
#include "mozilla/dom/BlobURLProtocolHandler.h"
|
|
#include "mozilla/dom/DocGroup.h"
|
|
#include "mozilla/dom/Document.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsGlobalWindowInner.h"
|
|
#include "nsNetUtil.h"
|
|
#include "nsThreadUtils.h"
|
|
|
|
namespace mozilla::dom {
|
|
|
|
/* static */
|
|
void URLMainThread::CreateObjectURL(const GlobalObject& aGlobal,
|
|
const BlobOrMediaSource& aObj,
|
|
nsACString& aResult, ErrorResult& aRv) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
|
|
if (NS_WARN_IF(!global)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
// MediaSource URLs cannot be used across Agent boundaries, as they require
|
|
// direct scriptable object sharing between registration and use.
|
|
// A MediaSource URL also cannot be used for generic subresource fetches.
|
|
// Because of this, they are registered on the DocGroup instead of globally.
|
|
if (aObj.IsMediaSource()) {
|
|
nsCOMPtr<nsPIDOMWindowInner> owner = do_QueryInterface(global);
|
|
RefPtr<DocGroup> docGroup = owner ? owner->GetDocGroup() : nullptr;
|
|
if (!docGroup) {
|
|
aRv.ThrowSecurityError("MediaSource URL must be registered in a Window");
|
|
return;
|
|
}
|
|
|
|
aRv = docGroup->RegisterMediaSourceURL(nsGlobalWindowInner::Cast(owner),
|
|
&aObj.GetAsMediaSource(), aResult);
|
|
return;
|
|
}
|
|
|
|
MOZ_RELEASE_ASSERT(aObj.IsBlob(), "MediaSource handled above");
|
|
|
|
nsAutoString partKey;
|
|
if (nsPIDOMWindowInner* owner = global->GetAsInnerWindow()) {
|
|
if (Document* doc = owner->GetExtantDoc()) {
|
|
nsCOMPtr<nsICookieJarSettings> cookieJarSettings =
|
|
doc->CookieJarSettings();
|
|
|
|
cookieJarSettings->GetPartitionKey(partKey);
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIPrincipal> principal =
|
|
nsContentUtils::ObjectPrincipal(aGlobal.Get());
|
|
|
|
aRv = BlobURLProtocolHandler::AddDataEntry(aObj.GetAsBlob().Impl(), principal,
|
|
NS_ConvertUTF16toUTF8(partKey),
|
|
aResult);
|
|
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return;
|
|
}
|
|
|
|
global->RegisterHostObjectURI(aResult);
|
|
}
|
|
|
|
/* static */
|
|
void URLMainThread::RevokeObjectURL(const GlobalObject& aGlobal,
|
|
const nsACString& aURL, ErrorResult& aRv) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
|
|
if (!global) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
nsAutoString partKey;
|
|
if (nsPIDOMWindowInner* owner = global->GetAsInnerWindow()) {
|
|
// If this is a Media Source URL, we can skip checking the global store.
|
|
RefPtr<DocGroup> docGroup = owner->GetDocGroup();
|
|
if (docGroup && docGroup->UnregisterMediaSourceURL(aURL)) {
|
|
return;
|
|
}
|
|
|
|
if (Document* doc = owner->GetExtantDoc()) {
|
|
nsCOMPtr<nsICookieJarSettings> cookieJarSettings =
|
|
doc->CookieJarSettings();
|
|
|
|
cookieJarSettings->GetPartitionKey(partKey);
|
|
}
|
|
}
|
|
|
|
if (BlobURLProtocolHandler::RemoveDataEntry(
|
|
aURL, nsContentUtils::ObjectPrincipal(aGlobal.Get()),
|
|
NS_ConvertUTF16toUTF8(partKey))) {
|
|
global->UnregisterHostObjectURI(aURL);
|
|
}
|
|
}
|
|
|
|
// static
|
|
bool URLMainThread::IsBoundToBlob(const GlobalObject& aGlobal,
|
|
const nsACString& aURL, ErrorResult& aRv) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
return BlobURLProtocolHandler::HasDataEntryTypeBlob(aURL);
|
|
}
|
|
|
|
} // namespace mozilla::dom
|