1 files changed, 169 insertions, 0 deletions
diff --git a/netwerk/base/LoadContextInfo.cpp b/netwerk/base/LoadContextInfo.cpp
new file mode 100644
index 0000000000..f96246eb40
--- /dev/null
+++ b/netwerk/base/LoadContextInfo.cpp
@@ -0,0 +1,169 @@
+/* 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 "LoadContextInfo.h"
+
+#include "mozilla/dom/ToJSValue.h"
+#include "mozilla/StoragePrincipalHelper.h"
+#include "nsDocShell.h"
+#include "nsIChannel.h"
+#include "nsILoadContext.h"
+#include "nsIWebNavigation.h"
+#include "nsNetUtil.h"
+
+using namespace mozilla::dom;
+namespace mozilla {
+namespace net {
+
+// LoadContextInfo
+
+NS_IMPL_ISUPPORTS(LoadContextInfo, nsILoadContextInfo)
+
+LoadContextInfo::LoadContextInfo(bool aIsAnonymous,
+                                 OriginAttributes aOriginAttributes)
+    : mIsAnonymous(aIsAnonymous),
+      mOriginAttributes(std::move(aOriginAttributes)) {}
+
+NS_IMETHODIMP LoadContextInfo::GetIsPrivate(bool* aIsPrivate) {
+  *aIsPrivate = mOriginAttributes.mPrivateBrowsingId > 0;
+  return NS_OK;
+}
+
+NS_IMETHODIMP LoadContextInfo::GetIsAnonymous(bool* aIsAnonymous) {
+  *aIsAnonymous = mIsAnonymous;
+  return NS_OK;
+}
+
+OriginAttributes const* LoadContextInfo::OriginAttributesPtr() {
+  return &mOriginAttributes;
+}
+
+NS_IMETHODIMP LoadContextInfo::GetOriginAttributes(
+    JSContext* aCx, JS::MutableHandle<JS::Value> aVal) {
+  if (NS_WARN_IF(!ToJSValue(aCx, mOriginAttributes, aVal))) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+// LoadContextInfoFactory
+
+NS_IMPL_ISUPPORTS(LoadContextInfoFactory, nsILoadContextInfoFactory)
+
+NS_IMETHODIMP LoadContextInfoFactory::GetDefault(
+    nsILoadContextInfo** aDefault) {
+  nsCOMPtr<nsILoadContextInfo> info =
+      GetLoadContextInfo(false, OriginAttributes());
+  info.forget(aDefault);
+  return NS_OK;
+}
+
+NS_IMETHODIMP LoadContextInfoFactory::GetPrivate(
+    nsILoadContextInfo** aPrivate) {
+  OriginAttributes attrs;
+  attrs.SyncAttributesWithPrivateBrowsing(true);
+  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(false, attrs);
+  info.forget(aPrivate);
+  return NS_OK;
+}
+
+NS_IMETHODIMP LoadContextInfoFactory::GetAnonymous(
+    nsILoadContextInfo** aAnonymous) {
+  nsCOMPtr<nsILoadContextInfo> info =
+      GetLoadContextInfo(true, OriginAttributes());
+  info.forget(aAnonymous);
+  return NS_OK;
+}
+
+NS_IMETHODIMP LoadContextInfoFactory::Custom(bool aAnonymous,
+                                             JS::HandleValue aOriginAttributes,
+                                             JSContext* cx,
+                                             nsILoadContextInfo** _retval) {
+  OriginAttributes attrs;
+  bool status = attrs.Init(cx, aOriginAttributes);
+  NS_ENSURE_TRUE(status, NS_ERROR_FAILURE);
+
+  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(aAnonymous, attrs);
+  info.forget(_retval);
+  return NS_OK;
+}
+
+NS_IMETHODIMP LoadContextInfoFactory::FromLoadContext(
+    nsILoadContext* aLoadContext, bool aAnonymous,
+    nsILoadContextInfo** _retval) {
+  nsCOMPtr<nsILoadContextInfo> info =
+      GetLoadContextInfo(aLoadContext, aAnonymous);
+  info.forget(_retval);
+  return NS_OK;
+}
+
+NS_IMETHODIMP LoadContextInfoFactory::FromWindow(nsIDOMWindow* aWindow,
+                                                 bool aAnonymous,
+                                                 nsILoadContextInfo** _retval) {
+  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(aWindow, aAnonymous);
+  info.forget(_retval);
+  return NS_OK;
+}
+
+// Helper functions
+
+LoadContextInfo* GetLoadContextInfo(nsIChannel* aChannel) {
+  nsresult rv;
+
+  DebugOnly<bool> pb = NS_UsePrivateBrowsing(aChannel);
+
+  bool anon = false;
+  nsLoadFlags loadFlags;
+  rv = aChannel->GetLoadFlags(&loadFlags);
+  if (NS_SUCCEEDED(rv)) {
+    anon = !!(loadFlags & nsIChannel::LOAD_ANONYMOUS);
+  }
+
+  OriginAttributes oa;
+  StoragePrincipalHelper::GetOriginAttributesForNetworkState(aChannel, oa);
+  MOZ_ASSERT(pb == (oa.mPrivateBrowsingId > 0));
+
+  return new LoadContextInfo(anon, oa);
+}
+
+LoadContextInfo* GetLoadContextInfo(nsILoadContext* aLoadContext,
+                                    bool aIsAnonymous) {
+  if (!aLoadContext) {
+    return new LoadContextInfo(aIsAnonymous, OriginAttributes());
+  }
+
+  OriginAttributes oa;
+  aLoadContext->GetOriginAttributes(oa);
+
+#ifdef DEBUG
+  nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(aLoadContext);
+  if (!docShell ||
+      nsDocShell::Cast(docShell)->GetBrowsingContext()->IsContent()) {
+    MOZ_ASSERT(aLoadContext->UsePrivateBrowsing() ==
+               (oa.mPrivateBrowsingId > 0));
+  }
+#endif
+
+  return new LoadContextInfo(aIsAnonymous, oa);
+}
+
+LoadContextInfo* GetLoadContextInfo(nsIDOMWindow* aWindow, bool aIsAnonymous) {
+  nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
+  nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(webNav);
+
+  return GetLoadContextInfo(loadContext, aIsAnonymous);
+}
+
+LoadContextInfo* GetLoadContextInfo(nsILoadContextInfo* aInfo) {
+  return new LoadContextInfo(aInfo->IsAnonymous(),
+                             *aInfo->OriginAttributesPtr());
+}
+
+LoadContextInfo* GetLoadContextInfo(bool const aIsAnonymous,
+                                    OriginAttributes const& aOriginAttributes) {
+  return new LoadContextInfo(aIsAnonymous, aOriginAttributes);
+}
+
+}  // namespace net
+}  // namespace mozilla