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/* -*- 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/. */

#include "mozilla/dom/SubtleCrypto.h"

#include "mozilla/dom/Promise.h"
#include "mozilla/dom/SubtleCryptoBinding.h"
#include "mozilla/dom/WebCryptoTask.h"

namespace mozilla {
namespace dom {

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(SubtleCrypto, mParent)
NS_IMPL_CYCLE_COLLECTING_ADDREF(SubtleCrypto)
NS_IMPL_CYCLE_COLLECTING_RELEASE(SubtleCrypto)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SubtleCrypto)
  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END

SubtleCrypto::SubtleCrypto(nsIGlobalObject* aParent) : mParent(aParent) {}

JSObject* SubtleCrypto::WrapObject(JSContext* aCx,
                                   JS::Handle<JSObject*> aGivenProto) {
  return SubtleCrypto_Binding::Wrap(aCx, this, aGivenProto);
}

#define SUBTLECRYPTO_METHOD_BODY(Operation, aRv, ...)      \
  MOZ_ASSERT(mParent);                                     \
  RefPtr<Promise> p = Promise::Create(mParent, aRv);       \
  if (aRv.Failed()) {                                      \
    return nullptr;                                        \
  }                                                        \
  RefPtr<WebCryptoTask> task =                             \
      WebCryptoTask::Create##Operation##Task(__VA_ARGS__); \
  if (!task) {                                             \
    aRv.Throw(NS_ERROR_NULL_POINTER);                      \
    return nullptr;                                        \
  }                                                        \
  task->DispatchWithPromise(p);                            \
  return p.forget();

already_AddRefed<Promise> SubtleCrypto::Encrypt(JSContext* cx,
                                                const ObjectOrString& algorithm,
                                                CryptoKey& key,
                                                const CryptoOperationData& data,
                                                ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(Encrypt, aRv, cx, algorithm, key, data)}

already_AddRefed<Promise> SubtleCrypto::Decrypt(JSContext* cx,
                                                const ObjectOrString& algorithm,
                                                CryptoKey& key,
                                                const CryptoOperationData& data,
                                                ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(Decrypt, aRv, cx, algorithm, key, data)}

already_AddRefed<Promise> SubtleCrypto::Sign(JSContext* cx,
                                             const ObjectOrString& algorithm,
                                             CryptoKey& key,
                                             const CryptoOperationData& data,
                                             ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(Sign, aRv, cx, algorithm, key, data)}

already_AddRefed<Promise> SubtleCrypto::Verify(
    JSContext* cx, const ObjectOrString& algorithm, CryptoKey& key,
    const CryptoOperationData& signature, const CryptoOperationData& data,
    ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(Verify, aRv, cx, algorithm, key, signature, data)}

already_AddRefed<Promise> SubtleCrypto::Digest(JSContext* cx,
                                               const ObjectOrString& algorithm,
                                               const CryptoOperationData& data,
                                               ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(Digest, aRv, cx, algorithm, data)}

already_AddRefed<Promise> SubtleCrypto::ImportKey(
    JSContext* cx, const nsAString& format, JS::Handle<JSObject*> keyData,
    const ObjectOrString& algorithm, bool extractable,
    const Sequence<nsString>& keyUsages, ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(ImportKey, aRv, mParent, cx, format, keyData,
                             algorithm, extractable, keyUsages)}

already_AddRefed<Promise> SubtleCrypto::ExportKey(const nsAString& format,
                                                  CryptoKey& key,
                                                  ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(ExportKey, aRv, format, key)}

already_AddRefed<Promise> SubtleCrypto::GenerateKey(
    JSContext* cx, const ObjectOrString& algorithm, bool extractable,
    const Sequence<nsString>& keyUsages, ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(GenerateKey, aRv, mParent, cx, algorithm,
                             extractable, keyUsages)}

already_AddRefed<Promise> SubtleCrypto::DeriveKey(
    JSContext* cx, const ObjectOrString& algorithm, CryptoKey& baseKey,
    const ObjectOrString& derivedKeyType, bool extractable,
    const Sequence<nsString>& keyUsages, ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(DeriveKey, aRv, mParent, cx, algorithm, baseKey,
                             derivedKeyType, extractable, keyUsages)}

already_AddRefed<Promise> SubtleCrypto::DeriveBits(
    JSContext* cx, const ObjectOrString& algorithm, CryptoKey& baseKey,
    uint32_t length, ErrorResult& aRv){
    SUBTLECRYPTO_METHOD_BODY(DeriveBits, aRv, cx, algorithm, baseKey, length)}

already_AddRefed<Promise> SubtleCrypto::WrapKey(
    JSContext* cx, const nsAString& format, CryptoKey& key,
    CryptoKey& wrappingKey, const ObjectOrString& wrapAlgorithm,
    ErrorResult& aRv){SUBTLECRYPTO_METHOD_BODY(WrapKey, aRv, cx, format, key,
                                               wrappingKey, wrapAlgorithm)}

already_AddRefed<Promise> SubtleCrypto::UnwrapKey(
    JSContext* cx, const nsAString& format,
    const ArrayBufferViewOrArrayBuffer& wrappedKey, CryptoKey& unwrappingKey,
    const ObjectOrString& unwrapAlgorithm,
    const ObjectOrString& unwrappedKeyAlgorithm, bool extractable,
    const Sequence<nsString>& keyUsages, ErrorResult& aRv) {
  SUBTLECRYPTO_METHOD_BODY(UnwrapKey, aRv, mParent, cx, format, wrappedKey,
                           unwrappingKey, unwrapAlgorithm,
                           unwrappedKeyAlgorithm, extractable, keyUsages)
}

}  // namespace dom
}  // namespace mozilla