1 files changed, 43 insertions, 0 deletions
diff --git a/dom/security/DOMSecurityMonitor.h b/dom/security/DOMSecurityMonitor.h
new file mode 100644
index 0000000000..457e8a143a
--- /dev/null
+++ b/dom/security/DOMSecurityMonitor.h
@@ -0,0 +1,43 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_DOMSecurityMonitor_h
+#define mozilla_dom_DOMSecurityMonitor_h
+
+#include "nsStringFwd.h"
+
+class nsIChannel;
+class nsIPrincipal;
+
+class DOMSecurityMonitor final {
+ public:
+  /* The fragment parser is triggered anytime JS calls innerHTML or similar
+   * JS functions which can generate HTML fragments. This generation of
+   * HTML might be dangerous, hence we should ensure that no new instances
+   * of innerHTML and similar functions are introduced in system privileged
+   * contexts, or also about: pages, in our codebase.
+   *
+   * If the auditor detects a new instance of innerHTML or similar
+   * function it will CRASH using a strong assertion.
+   */
+  static void AuditParsingOfHTMLXMLFragments(nsIPrincipal* aPrincipal,
+                                             const nsAString& aFragment);
+
+  /* The use of javascript: URIs in system privileged contexts or
+   * also about: pages is considered unsafe and discouraged.
+   *
+   * If the auditor detects a javascript: URI in a privileged
+   * context it will CRASH using a strong assertion.
+   *
+   */
+  static void AuditUseOfJavaScriptURI(nsIChannel* aChannel);
+
+ private:
+  DOMSecurityMonitor() = default;
+  ~DOMSecurityMonitor() = default;
+};
+
+#endif /* mozilla_dom_DOMSecurityMonitor_h */