NullPrincipalJSONHandler.h

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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_NullPrincipalJSONHandler_h

#define mozilla_NullPrincipalJSONHandler_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/Assertions.h"       // MOZ_ASSERT_UNREACHABLE

#include "mozilla/RefPtr.h"           // RefPtr

#include "nsCOMPtr.h"  // nsCOMPtr

#include "nsDebug.h"   // NS_WARNING

#include "nsIURI.h"    // nsIURI

#include "NullPrincipal.h"

#include "OriginAttributes.h"

#include "SharedJSONHandler.h"

namespace mozilla {

// JSON parse handler for an inner object for NullPrincipal.

// Used by PrincipalJSONHandler or SubsumedPrincipalJSONHandler.

class NullPrincipalJSONHandler : public PrincipalJSONHandlerShared {

  enum class State {

    Init,

    // After the inner object's '{'.

    StartObject,

    // After the property key for eSpec.

    SpecKey,

    // After the property key for eSuffix.

    SuffixKey,

    // After the property value for eSpec or eSuffix.

    AfterPropertyValue,

    // After the inner object's '}'.

    EndObject,

    Error,

};

 public:

  NullPrincipalJSONHandler() = default;

  virtual ~NullPrincipalJSONHandler() = default;

  virtual bool startObject() override;

  using PrincipalJSONHandlerShared::propertyName;

  virtual bool propertyName(const JS::Latin1Char* name, size_t length) override;

  virtual bool endObject() override;

  virtual bool startArray() override {

    NS_WARNING("Unexpected array value");

    mState = State::Error;

    return false;

  virtual bool endArray() override {

    NS_WARNING("Unexpected array value");

    mState = State::Error;

    return false;

  using PrincipalJSONHandlerShared::stringValue;

  virtual bool stringValue(const JS::Latin1Char* str, size_t length) override;

  bool HasAccepted() const { return mState == State::EndObject; }

 protected:

  virtual void SetErrorState() override { mState = State::Error; }

 private:

  State mState = State::Init;

  nsCOMPtr<nsIURI> mUri;

  OriginAttributes mAttrs;

};

}  // namespace mozilla

#endif  // mozilla_NullPrincipalJSONHandler_h