Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 374 insertions, 0 deletions

diff --git a/layout/style/FontFaceSetWorkerImpl.cpp b/layout/style/FontFaceSetWorkerImpl.cpp
new file mode 100644
index 0000000000..015c9e5b18
--- /dev/null
+++ b/layout/style/FontFaceSetWorkerImpl.cpp
@@ -0,0 +1,374 @@
+/* -*- 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 "FontFaceSetWorkerImpl.h"
+#include "mozilla/FontLoaderUtils.h"
+#include "mozilla/dom/WorkerPrivate.h"
+#include "mozilla/dom/WorkerRef.h"
+#include "mozilla/dom/WorkerRunnable.h"
+#include "mozilla/LoadInfo.h"
+#include "nsContentPolicyUtils.h"
+#include "nsFontFaceLoader.h"
+#include "nsINetworkPredictor.h"
+#include "nsIWebNavigation.h"
+
+using namespace mozilla;
+using namespace mozilla::css;
+
+namespace mozilla::dom {
+
+#define LOG(...)                                                       \
+  MOZ_LOG(gfxUserFontSet::GetUserFontsLog(), mozilla::LogLevel::Debug, \
+          (__VA_ARGS__))
+#define LOG_ENABLED() \
+  MOZ_LOG_TEST(gfxUserFontSet::GetUserFontsLog(), LogLevel::Debug)
+
+NS_IMPL_ISUPPORTS_INHERITED0(FontFaceSetWorkerImpl, FontFaceSetImpl);
+
+FontFaceSetWorkerImpl::FontFaceSetWorkerImpl(FontFaceSet* aOwner)
+    : FontFaceSetImpl(aOwner) {}
+
+FontFaceSetWorkerImpl::~FontFaceSetWorkerImpl() = default;
+
+bool FontFaceSetWorkerImpl::Initialize(WorkerPrivate* aWorkerPrivate) {
+  MOZ_ASSERT(aWorkerPrivate);
+
+  RefPtr<StrongWorkerRef> workerRef =
+      StrongWorkerRef::Create(aWorkerPrivate, "FontFaceSetWorkerImpl",
+                              [self = RefPtr{this}] { self->Destroy(); });
+  if (NS_WARN_IF(!workerRef)) {
+    return false;
+  }
+
+  {
+    RecursiveMutexAutoLock lock(mMutex);
+    mWorkerRef = new ThreadSafeWorkerRef(workerRef);
+  }
+
+  class InitRunnable final : public WorkerMainThreadRunnable {
+   public:
+    InitRunnable(WorkerPrivate* aWorkerPrivate, FontFaceSetWorkerImpl* aImpl)
+        : WorkerMainThreadRunnable(aWorkerPrivate,
+                                   "FontFaceSetWorkerImpl :: Initialize"_ns),
+          mImpl(aImpl) {}
+
+   protected:
+    ~InitRunnable() override = default;
+
+    bool MainThreadRun() override {
+      mImpl->InitializeOnMainThread();
+      return true;
+    }
+
+    FontFaceSetWorkerImpl* mImpl;
+  };
+
+  IgnoredErrorResult rv;
+  auto runnable = MakeRefPtr<InitRunnable>(aWorkerPrivate, this);
+  runnable->Dispatch(Canceling, rv);
+  return !NS_WARN_IF(rv.Failed());
+}
+
+void FontFaceSetWorkerImpl::InitializeOnMainThread() {
+  MOZ_ASSERT(NS_IsMainThread());
+  RecursiveMutexAutoLock lock(mMutex);
+
+  if (!mWorkerRef) {
+    return;
+  }
+
+  WorkerPrivate* workerPrivate = mWorkerRef->Private();
+  nsIPrincipal* principal = workerPrivate->GetPrincipal();
+  nsIPrincipal* loadingPrincipal = workerPrivate->GetLoadingPrincipal();
+  nsIPrincipal* partitionedPrincipal = workerPrivate->GetPartitionedPrincipal();
+  nsIPrincipal* defaultPrincipal = principal ? principal : loadingPrincipal;
+
+  nsLoadFlags loadFlags = workerPrivate->GetLoadFlags();
+  uint32_t loadType = 0;
+
+  // Get the top-level worker.
+  WorkerPrivate* topWorkerPrivate = workerPrivate;
+  WorkerPrivate* parent = workerPrivate->GetParent();
+  while (parent) {
+    topWorkerPrivate = parent;
+    parent = topWorkerPrivate->GetParent();
+  }
+
+  // If the top-level worker is a dedicated worker and has a window, and the
+  // window has a docshell, the caching behavior of this worker should match
+  // that of that docshell. This matches the behaviour from
+  // WorkerScriptLoader::LoadScript.
+  if (topWorkerPrivate->IsDedicatedWorker()) {
+    nsCOMPtr<nsPIDOMWindowInner> window = topWorkerPrivate->GetWindow();
+    if (window) {
+      nsCOMPtr<nsIDocShell> docShell = window->GetDocShell();
+      if (docShell) {
+        docShell->GetDefaultLoadFlags(&loadFlags);
+        docShell->GetLoadType(&loadType);
+      }
+    }
+  }
+
+  // Record the state of the "bypass cache" flags now. In theory the load type
+  // of a docshell could change after the document is loaded, but handling that
+  // doesn't seem too important. This matches the behaviour from
+  // FontFaceSetDocumentImpl::Initialize.
+  mBypassCache =
+      ((loadType >> 16) & nsIWebNavigation::LOAD_FLAGS_BYPASS_CACHE) ||
+      (loadFlags & nsIRequest::LOAD_BYPASS_CACHE);
+
+  // Same for the "private browsing" flag.
+  if (defaultPrincipal) {
+    mPrivateBrowsing = defaultPrincipal->GetPrivateBrowsingId() > 0;
+  }
+
+  mStandardFontLoadPrincipal =
+      MakeRefPtr<gfxFontSrcPrincipal>(defaultPrincipal, partitionedPrincipal);
+
+  mURLExtraData =
+      new URLExtraData(workerPrivate->GetBaseURI(),
+                       workerPrivate->GetReferrerInfo(), defaultPrincipal);
+}
+
+void FontFaceSetWorkerImpl::Destroy() {
+  RecursiveMutexAutoLock lock(mMutex);
+
+  mWorkerRef = nullptr;
+  FontFaceSetImpl::Destroy();
+}
+
+bool FontFaceSetWorkerImpl::IsOnOwningThread() {
+  RecursiveMutexAutoLock lock(mMutex);
+  if (!mWorkerRef) {
+    return false;
+  }
+
+  return mWorkerRef->Private()->IsOnCurrentThread();
+}
+
+#ifdef DEBUG
+void FontFaceSetWorkerImpl::AssertIsOnOwningThread() {
+  RecursiveMutexAutoLock lock(mMutex);
+  if (mWorkerRef) {
+    MOZ_ASSERT(mWorkerRef->Private()->IsOnCurrentThread());
+  } else {
+    // Asserting during cycle collection if we are tearing down the worker is
+    // difficult. The only other thread that uses FontFace(Set)Impl objects is
+    // the main thread (if created from a worker).
+    MOZ_ASSERT(!NS_IsMainThread());
+  }
+}
+#endif
+
+void FontFaceSetWorkerImpl::DispatchToOwningThread(
+    const char* aName, std::function<void()>&& aFunc) {
+  RecursiveMutexAutoLock lock(mMutex);
+  if (!mWorkerRef) {
+    return;
+  }
+
+  WorkerPrivate* workerPrivate = mWorkerRef->Private();
+  if (workerPrivate->IsOnCurrentThread()) {
+    NS_DispatchToCurrentThread(
+        NS_NewCancelableRunnableFunction(aName, std::move(aFunc)));
+    return;
+  }
+
+  class FontFaceSetWorkerRunnable final : public WorkerRunnable {
+   public:
+    FontFaceSetWorkerRunnable(WorkerPrivate* aWorkerPrivate,
+                              std::function<void()>&& aFunc)
+        : WorkerRunnable(aWorkerPrivate, "FontFaceSetWorkerRunnable"),
+          mFunc(std::move(aFunc)) {}
+
+    bool WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override {
+      mFunc();
+      return true;
+    }
+
+   private:
+    std::function<void()> mFunc;
+  };
+
+  RefPtr<FontFaceSetWorkerRunnable> runnable =
+      new FontFaceSetWorkerRunnable(workerPrivate, std::move(aFunc));
+  runnable->Dispatch();
+}
+
+uint64_t FontFaceSetWorkerImpl::GetInnerWindowID() {
+  RecursiveMutexAutoLock lock(mMutex);
+  if (!mWorkerRef) {
+    return 0;
+  }
+
+  return mWorkerRef->Private()->WindowID();
+}
+
+void FontFaceSetWorkerImpl::FlushUserFontSet() {
+  RecursiveMutexAutoLock lock(mMutex);
+
+  // If there was a change to the mNonRuleFaces array, then there could
+  // have been a modification to the user font set.
+  const bool modified = mNonRuleFacesDirty;
+  mNonRuleFacesDirty = false;
+
+  for (size_t i = 0, i_end = mNonRuleFaces.Length(); i < i_end; ++i) {
+    InsertNonRuleFontFace(mNonRuleFaces[i].mFontFace);
+  }
+
+  // Remove any residual families that have no font entries.
+  for (auto it = mFontFamilies.Iter(); !it.Done(); it.Next()) {
+    if (!it.Data()->FontListLength()) {
+      it.Remove();
+    }
+  }
+
+  if (modified) {
+    IncrementGeneration(true);
+    mHasLoadingFontFacesIsDirty = true;
+    CheckLoadingStarted();
+    CheckLoadingFinished();
+  }
+}
+
+already_AddRefed<gfxUserFontFamily> FontFaceSetWorkerImpl::LookupFamily(
+    const nsACString& aName) const {
+  RecursiveMutexAutoLock lock(mMutex);
+  return gfxUserFontSet::LookupFamily(aName);
+}
+
+nsresult FontFaceSetWorkerImpl::StartLoad(gfxUserFontEntry* aUserFontEntry,
+                                          uint32_t aSrcIndex) {
+  RecursiveMutexAutoLock lock(mMutex);
+
+  if (NS_WARN_IF(!mWorkerRef)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsresult rv;
+
+  nsCOMPtr<nsIStreamLoader> streamLoader;
+
+  const gfxFontFaceSrc& src = aUserFontEntry->SourceAt(aSrcIndex);
+
+  nsCOMPtr<nsILoadGroup> loadGroup(mWorkerRef->Private()->GetLoadGroup());
+  nsCOMPtr<nsIChannel> channel;
+  rv = FontLoaderUtils::BuildChannel(
+      getter_AddRefs(channel), src.mURI->get(), CORS_ANONYMOUS,
+      dom::ReferrerPolicy::_empty /* not used */, aUserFontEntry, &src,
+      mWorkerRef->Private(), loadGroup, nullptr);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  RefPtr<nsFontFaceLoader> fontLoader =
+      new nsFontFaceLoader(aUserFontEntry, aSrcIndex, this, channel);
+
+  if (LOG_ENABLED()) {
+    nsCOMPtr<nsIURI> referrer =
+        src.mReferrerInfo ? src.mReferrerInfo->GetOriginalReferrer() : nullptr;
+    LOG("userfonts (%p) download start - font uri: (%s) referrer uri: (%s)\n",
+        fontLoader.get(), src.mURI->GetSpecOrDefault().get(),
+        referrer ? referrer->GetSpecOrDefault().get() : "");
+  }
+
+  rv = NS_NewStreamLoader(getter_AddRefs(streamLoader), fontLoader, fontLoader);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = channel->AsyncOpen(streamLoader);
+  if (NS_FAILED(rv)) {
+    fontLoader->DropChannel();  // explicitly need to break ref cycle
+  }
+
+  mLoaders.PutEntry(fontLoader);
+
+  net::PredictorLearn(src.mURI->get(), mWorkerRef->Private()->GetBaseURI(),
+                      nsINetworkPredictor::LEARN_LOAD_SUBRESOURCE, loadGroup);
+
+  if (NS_SUCCEEDED(rv)) {
+    fontLoader->StartedLoading(streamLoader);
+    // let the font entry remember the loader, in case we need to cancel it
+    aUserFontEntry->SetLoader(fontLoader);
+  }
+
+  return rv;
+}
+
+bool FontFaceSetWorkerImpl::IsFontLoadAllowed(const gfxFontFaceSrc& aSrc) {
+  MOZ_ASSERT(aSrc.mSourceType == gfxFontFaceSrc::eSourceType_URL);
+  MOZ_ASSERT(NS_IsMainThread());
+
+  RecursiveMutexAutoLock lock(mMutex);
+
+  if (aSrc.mUseOriginPrincipal) {
+    return true;
+  }
+
+  if (NS_WARN_IF(!mWorkerRef)) {
+    return false;
+  }
+
+  RefPtr<gfxFontSrcPrincipal> gfxPrincipal =
+      aSrc.mURI->InheritsSecurityContext() ? nullptr
+                                           : aSrc.LoadPrincipal(*this);
+
+  nsIPrincipal* principal =
+      gfxPrincipal ? gfxPrincipal->NodePrincipal() : nullptr;
+
+  nsCOMPtr<nsILoadInfo> secCheckLoadInfo = new net::LoadInfo(
+      mWorkerRef->Private()->GetLoadingPrincipal(),  // loading principal
+      principal,                                     // triggering principal
+      nullptr, nsILoadInfo::SEC_ONLY_FOR_EXPLICIT_CONTENTSEC_CHECK,
+      nsIContentPolicy::TYPE_FONT);
+
+  int16_t shouldLoad = nsIContentPolicy::ACCEPT;
+  nsresult rv =
+      NS_CheckContentLoadPolicy(aSrc.mURI->get(), secCheckLoadInfo, &shouldLoad,
+                                nsContentUtils::GetContentPolicy());
+
+  return NS_SUCCEEDED(rv) && NS_CP_ACCEPTED(shouldLoad);
+}
+
+nsresult FontFaceSetWorkerImpl::CreateChannelForSyncLoadFontData(
+    nsIChannel** aOutChannel, gfxUserFontEntry* aFontToLoad,
+    const gfxFontFaceSrc* aFontFaceSrc) {
+  RecursiveMutexAutoLock lock(mMutex);
+  if (NS_WARN_IF(!mWorkerRef)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  gfxFontSrcPrincipal* principal = aFontToLoad->GetPrincipal();
+
+  // We only get here for data: loads, so it doesn't really matter whether we
+  // use SEC_ALLOW_CROSS_ORIGIN_INHERITS_SEC_CONTEXT or not, to be more
+  // restrictive we use SEC_REQUIRE_SAME_ORIGIN_INHERITS_SEC_CONTEXT.
+  return NS_NewChannelWithTriggeringPrincipal(
+      aOutChannel, aFontFaceSrc->mURI->get(),
+      mWorkerRef->Private()->GetLoadingPrincipal(),
+      principal ? principal->NodePrincipal() : nullptr,
+      nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_INHERITS_SEC_CONTEXT,
+      aFontFaceSrc->mUseOriginPrincipal ? nsIContentPolicy::TYPE_UA_FONT
+                                        : nsIContentPolicy::TYPE_FONT);
+}
+
+nsPresContext* FontFaceSetWorkerImpl::GetPresContext() const { return nullptr; }
+
+TimeStamp FontFaceSetWorkerImpl::GetNavigationStartTimeStamp() {
+  RecursiveMutexAutoLock lock(mMutex);
+  if (!mWorkerRef) {
+    return TimeStamp();
+  }
+
+  return mWorkerRef->Private()->CreationTimeStamp();
+}
+
+already_AddRefed<URLExtraData> FontFaceSetWorkerImpl::GetURLExtraData() {
+  RecursiveMutexAutoLock lock(mMutex);
+  return RefPtr{mURLExtraData}.forget();
+}
+
+#undef LOG_ENABLED
+#undef LOG
+
+}  // namespace mozilla::dom