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-rw-r--r--caps/SubsumedPrincipalJSONHandler.h96
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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_SubsumedPrincipalJSONHandler_h
+#define mozilla_SubsumedPrincipalJSONHandler_h
+
+#include <stddef.h> // size_t
+#include <stdint.h> // uint32_t
+
+#include "js/TypeDecls.h" // JS::Latin1Char
+
+#include "mozilla/AlreadyAddRefed.h" // already_AddRefed
+#include "mozilla/Variant.h" // Variant
+#include "mozilla/RefPtr.h" // RefPtr
+
+#include "nsDebug.h" // NS_WARNING
+
+#include "BasePrincipal.h"
+#include "ContentPrincipalJSONHandler.h"
+#include "NullPrincipalJSONHandler.h"
+#include "SharedJSONHandler.h"
+
+namespace mozilla {
+
+class SubsumedPrincipalJSONHandlerTypes {
+ public:
+ enum class State {
+ Init,
+
+ // After the subsumed principal object's '{'.
+ StartObject,
+
+ // After the PrincipalKind property key for SystemPrincipal.
+ SystemPrincipal_Key,
+ // After the SystemPrincipal's inner object's '{'.
+ SystemPrincipal_StartObject,
+ // After the SystemPrincipal's inner object's '}'.
+ SystemPrincipal_EndObject,
+
+ // After the PrincipalKind property key for NullPrincipal or
+ // ContentPrincipal, and also the entire inner object.
+ // Delegates to mInnerHandler until the inner object's '}'.
+ //
+ // Unlike PrincipalJSONHandler, subsumed principal doesn't contain
+ // ExpandedPrincipal.
+ NullPrincipal_Inner,
+ ContentPrincipal_Inner,
+
+ // After the subsumed principal object's '}'.
+ EndObject,
+
+ Error,
+ };
+
+ using InnerHandlerT =
+ Maybe<Variant<NullPrincipalJSONHandler, ContentPrincipalJSONHandler>>;
+
+ static constexpr bool CanContainExpandedPrincipal = false;
+};
+
+// JSON parse handler for subsumed principal object inside ExpandedPrincipal's
+// new format.
+//
+// Subsumed principal object
+// |
+// ----------------------------------
+// | |
+// {"2": {"0": [{"1": {"0": https://mozilla.com"}}]}}
+// | | |
+// | ---------------------------
+// | |
+// | inner object
+// PrincipalKind
+//
+// For inner object except for the system principal case, this delegates
+// to NullPrincipalJSONHandler or ContentPrincipalJSONHandler.
+class SubsumedPrincipalJSONHandler
+ : public ContainerPrincipalJSONHandler<SubsumedPrincipalJSONHandlerTypes> {
+ using State = SubsumedPrincipalJSONHandlerTypes::State;
+ using InnerHandlerT = SubsumedPrincipalJSONHandlerTypes::InnerHandlerT;
+
+ public:
+ SubsumedPrincipalJSONHandler() = default;
+ virtual ~SubsumedPrincipalJSONHandler() = default;
+
+ bool HasAccepted() const { return mState == State::EndObject; }
+
+ protected:
+ virtual void SetErrorState() override { mState = State::Error; }
+};
+
+} // namespace mozilla
+
+#endif // mozilla_SubsumedPrincipalJSONHandler_h