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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_PrincipalJSONHandler_h
#define mozilla_PrincipalJSONHandler_h
#include <stddef.h> // size_t
#include <stdint.h> // uint32_t
#include "js/JSON.h" // JS::JSONParseHandler
#include "js/TypeDecls.h" // JS::Latin1Char
#include "mozilla/AlreadyAddRefed.h" // already_AddRefed
#include "mozilla/RefPtr.h" // RefPtr
#include "mozilla/Variant.h" // Variant
#include "nsDebug.h" // NS_WARNING
#include "nsPrintfCString.h" // nsPrintfCString
#include "BasePrincipal.h"
#include "ContentPrincipalJSONHandler.h"
#include "ExpandedPrincipalJSONHandler.h"
#include "NullPrincipalJSONHandler.h"
#include "SharedJSONHandler.h"
namespace mozilla {
class PrincipalJSONHandlerTypes {
public:
enum class State {
Init,
// After top-level 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, ContentPrincipal,
// or ExpandedPrincipal, and also the entire inner object.
// Delegates to mInnerHandler until the inner object's '}'.
NullPrincipal_Inner,
ContentPrincipal_Inner,
ExpandedPrincipal_Inner,
// After top-level object's '}'.
EndObject,
Error,
};
using InnerHandlerT =
Maybe<Variant<NullPrincipalJSONHandler, ContentPrincipalJSONHandler,
ExpandedPrincipalJSONHandler>>;
static constexpr bool CanContainExpandedPrincipal = true;
};
// JSON parse handler for the top-level object for principal.
//
// inner object
// |
// ---------------------------------------------------------
// | |
// {"1": {"0": "https://mozilla.com", "2": "^privateBrowsingId=1"}}
// |
// |
// |
// PrincipalKind
//
// For inner object except for the system principal case, this delegates
// to NullPrincipalJSONHandler, ContentPrincipalJSONHandler, or
// ExpandedPrincipalJSONHandler.
//
//// Null principal:
// {"0":{"0":"moz-nullprincipal:{56cac540-864d-47e7-8e25-1614eab5155e}"}}
//
// Content principal:
// {"1":{"0":"https://mozilla.com"}} -> {"0":"https://mozilla.com"}
//
// Expanded principal:
// {"2":{"0":"<base64principal1>,<base64principal2>"}}
//
// System principal:
// {"3":{}}
class PrincipalJSONHandler
: public ContainerPrincipalJSONHandler<PrincipalJSONHandlerTypes> {
using State = PrincipalJSONHandlerTypes::State;
using InnerHandlerT = PrincipalJSONHandlerTypes::InnerHandlerT;
public:
PrincipalJSONHandler() = default;
virtual ~PrincipalJSONHandler() = default;
virtual void error(const char* msg, uint32_t line, uint32_t column) override {
NS_WARNING(
nsPrintfCString("JSON Error: %s at line %u column %u of the JSON data",
msg, line, column)
.get());
}
already_AddRefed<BasePrincipal> Get() { return mPrincipal.forget(); }
protected:
virtual void SetErrorState() override { mState = State::Error; }
};
} // namespace mozilla
#endif // mozilla_PrincipalJSONHandler_h
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