mirror of
https://github.com/mozilla/gecko-dev.git
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fde06f6d21
Also add some missing namespace qualifications
Done with:
./mach static-analysis check --checks="-*,modernize-concat-nested-namespaces" --fix dom/
./mach clang-format -p $(hg status dom/|grep ^M|awk '{print $2}')
Differential Revision: https://phabricator.services.mozilla.com/D95456
103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "Crypto.h"
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#include "jsfriendapi.h"
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#include "js/experimental/TypedData.h" // JS_GetArrayBufferViewType
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#include "nsCOMPtr.h"
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#include "nsIRandomGenerator.h"
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#include "MainThreadUtils.h"
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#include "nsXULAppAPI.h"
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#include "mozilla/dom/ContentChild.h"
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#include "mozilla/dom/CryptoBinding.h"
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#include "nsServiceManagerUtils.h"
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using mozilla::dom::ContentChild;
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namespace mozilla::dom {
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Crypto)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(Crypto)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(Crypto)
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Crypto, mParent, mSubtle)
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Crypto::Crypto(nsIGlobalObject* aParent) : mParent(aParent) {}
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Crypto::~Crypto() = default;
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/* virtual */
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JSObject* Crypto::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return Crypto_Binding::Wrap(aCx, this, aGivenProto);
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}
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void Crypto::GetRandomValues(JSContext* aCx, const ArrayBufferView& aArray,
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JS::MutableHandle<JSObject*> aRetval,
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ErrorResult& aRv) {
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JS::Rooted<JSObject*> view(aCx, aArray.Obj());
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// Throw if the wrong type of ArrayBufferView is passed in
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// (Part of the Web Crypto API spec)
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switch (JS_GetArrayBufferViewType(view)) {
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case js::Scalar::Int8:
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case js::Scalar::Uint8:
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case js::Scalar::Uint8Clamped:
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case js::Scalar::Int16:
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case js::Scalar::Uint16:
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case js::Scalar::Int32:
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case js::Scalar::Uint32:
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break;
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default:
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aRv.Throw(NS_ERROR_DOM_TYPE_MISMATCH_ERR);
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return;
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}
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aArray.ComputeState();
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uint32_t dataLen = aArray.Length();
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if (dataLen == 0) {
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NS_WARNING("ArrayBufferView length is 0, cannot continue");
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aRetval.set(view);
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return;
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} else if (dataLen > 65536) {
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aRv.Throw(NS_ERROR_DOM_QUOTA_EXCEEDED_ERR);
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return;
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}
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nsCOMPtr<nsIRandomGenerator> randomGenerator =
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do_GetService("@mozilla.org/security/random-generator;1");
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if (!randomGenerator) {
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aRv.Throw(NS_ERROR_DOM_OPERATION_ERR);
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return;
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}
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uint8_t* buf;
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nsresult rv = randomGenerator->GenerateRandomBytes(dataLen, &buf);
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if (NS_FAILED(rv) || !buf) {
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aRv.Throw(NS_ERROR_DOM_OPERATION_ERR);
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return;
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}
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// Copy random bytes to ABV.
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memcpy(aArray.Data(), buf, dataLen);
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free(buf);
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aRetval.set(view);
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}
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SubtleCrypto* Crypto::Subtle() {
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if (!mSubtle) {
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mSubtle = new SubtleCrypto(GetParentObject());
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}
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return mSubtle;
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}
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} // namespace mozilla::dom
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