mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-26 22:32:46 +00:00
31ceef48aa
This avoid intermediate object tree for "JSON to principal" case. Differential Revision: https://phabricator.services.mozilla.com/D192146
117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
/* -*- 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
|