From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../antitracking/RejectForeignAllowList.cpp        | 127 +++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 toolkit/components/antitracking/RejectForeignAllowList.cpp

(limited to 'toolkit/components/antitracking/RejectForeignAllowList.cpp')

diff --git a/toolkit/components/antitracking/RejectForeignAllowList.cpp b/toolkit/components/antitracking/RejectForeignAllowList.cpp
new file mode 100644
index 0000000000..3af0494558
--- /dev/null
+++ b/toolkit/components/antitracking/RejectForeignAllowList.cpp
@@ -0,0 +1,127 @@
+/* -*- 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 "RejectForeignAllowList.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/BasePrincipal.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/StaticPtr.h"
+#include "nsIHttpChannel.h"
+#include "nsIURI.h"
+#include "nsNetUtil.h"
+#include "nsScriptSecurityManager.h"
+
+#define REJECTFOREIGNALLOWLIST_PREF "privacy.rejectForeign.allowList"_ns
+#define REJECTFOREIGNALLOWLIST_NAME "RejectForeignAllowList"_ns
+
+namespace mozilla {
+
+namespace {
+
+StaticRefPtr<RejectForeignAllowList> gRejectForeignAllowList;
+
+}  // namespace
+
+// static
+bool RejectForeignAllowList::Check(dom::Document* aDocument) {
+  MOZ_ASSERT(aDocument);
+
+  nsIURI* documentURI = aDocument->GetDocumentURI();
+  if (!documentURI) {
+    return false;
+  }
+
+  return GetOrCreate()->CheckInternal(documentURI);
+}
+
+// static
+bool RejectForeignAllowList::Check(nsIHttpChannel* aChannel) {
+  MOZ_ASSERT(aChannel);
+
+  nsCOMPtr<nsIURI> channelURI;
+  nsresult rv = NS_GetFinalChannelURI(aChannel, getter_AddRefs(channelURI));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return false;
+  }
+
+  return GetOrCreate()->CheckInternal(channelURI);
+}
+
+// static
+bool RejectForeignAllowList::Check(nsIPrincipal* aPrincipal) {
+  return GetOrCreate()->CheckInternal(aPrincipal);
+}
+
+// static
+RejectForeignAllowList* RejectForeignAllowList::GetOrCreate() {
+  if (!gRejectForeignAllowList) {
+    gRejectForeignAllowList = new RejectForeignAllowList();
+
+    nsCOMPtr<nsIUrlClassifierExceptionListService> exceptionListService =
+        do_GetService("@mozilla.org/url-classifier/exception-list-service;1");
+    if (exceptionListService) {
+      exceptionListService->RegisterAndRunExceptionListObserver(
+          REJECTFOREIGNALLOWLIST_NAME, REJECTFOREIGNALLOWLIST_PREF,
+          gRejectForeignAllowList);
+    }
+
+    RunOnShutdown([exceptionListService] {
+      if (gRejectForeignAllowList) {
+        if (exceptionListService) {
+          exceptionListService->UnregisterExceptionListObserver(
+              REJECTFOREIGNALLOWLIST_NAME, gRejectForeignAllowList);
+        }
+        gRejectForeignAllowList = nullptr;
+      }
+    });
+  }
+
+  return gRejectForeignAllowList;
+}
+
+// static
+bool RejectForeignAllowList::Check(nsIURI* aURI) {
+  return GetOrCreate()->CheckInternal(aURI);
+}
+
+bool RejectForeignAllowList::CheckInternal(nsIURI* aURI) {
+  MOZ_ASSERT(aURI);
+  return nsContentUtils::IsURIInList(aURI, mList);
+}
+
+bool RejectForeignAllowList::CheckInternal(nsIPrincipal* aPrincipal) {
+  MOZ_ASSERT(aPrincipal);
+
+  auto* basePrin = BasePrincipal::Cast(aPrincipal);
+  if (!basePrin) {
+    return false;
+  }
+
+  bool result = false;
+  basePrin->IsURIInList(mList, &result);
+
+  return result;
+}
+
+NS_IMETHODIMP
+RejectForeignAllowList::OnExceptionListUpdate(const nsACString& aList) {
+  mList = aList;
+  return NS_OK;
+}
+
+RejectForeignAllowList::RejectForeignAllowList() = default;
+RejectForeignAllowList::~RejectForeignAllowList() = default;
+
+NS_INTERFACE_MAP_BEGIN(RejectForeignAllowList)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports,
+                                   nsIUrlClassifierExceptionListObserver)
+  NS_INTERFACE_MAP_ENTRY(nsIUrlClassifierExceptionListObserver)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_ADDREF(RejectForeignAllowList)
+NS_IMPL_RELEASE(RejectForeignAllowList)
+
+}  // namespace mozilla
-- 
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