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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/Base64.h"
#include "mozilla/dom/WebAuthenticationBinding.h"
#include "mozilla/dom/AuthenticatorAssertionResponse.h"
#include "mozilla/HoldDropJSObjects.h"
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_CLASS(AuthenticatorAssertionResponse)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(AuthenticatorAssertionResponse,
AuthenticatorResponse)
tmp->mAuthenticatorDataCachedObj = nullptr;
tmp->mSignatureCachedObj = nullptr;
tmp->mUserHandleCachedObj = nullptr;
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(AuthenticatorAssertionResponse,
AuthenticatorResponse)
NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mAuthenticatorDataCachedObj)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mSignatureCachedObj)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mUserHandleCachedObj)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(
AuthenticatorAssertionResponse, AuthenticatorResponse)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_ADDREF_INHERITED(AuthenticatorAssertionResponse, AuthenticatorResponse)
NS_IMPL_RELEASE_INHERITED(AuthenticatorAssertionResponse, AuthenticatorResponse)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AuthenticatorAssertionResponse)
NS_INTERFACE_MAP_END_INHERITING(AuthenticatorResponse)
AuthenticatorAssertionResponse::AuthenticatorAssertionResponse(
nsPIDOMWindowInner* aParent)
: AuthenticatorResponse(aParent),
mAuthenticatorDataCachedObj(nullptr),
mSignatureCachedObj(nullptr),
mUserHandleCachedObj(nullptr) {
mozilla::HoldJSObjects(this);
}
AuthenticatorAssertionResponse::~AuthenticatorAssertionResponse() {
mozilla::DropJSObjects(this);
}
JSObject* AuthenticatorAssertionResponse::WrapObject(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
return AuthenticatorAssertionResponse_Binding::Wrap(aCx, this, aGivenProto);
}
void AuthenticatorAssertionResponse::GetAuthenticatorData(
JSContext* aCx, JS::MutableHandle<JSObject*> aValue, ErrorResult& aRv) {
if (!mAuthenticatorDataCachedObj) {
mAuthenticatorDataCachedObj =
ArrayBuffer::Create(aCx, mAuthenticatorData, aRv);
if (aRv.Failed()) {
return;
}
}
aValue.set(mAuthenticatorDataCachedObj);
}
void AuthenticatorAssertionResponse::SetAuthenticatorData(
const nsTArray<uint8_t>& aBuffer) {
mAuthenticatorData.Assign(aBuffer);
}
void AuthenticatorAssertionResponse::GetSignature(
JSContext* aCx, JS::MutableHandle<JSObject*> aValue, ErrorResult& aRv) {
if (!mSignatureCachedObj) {
mSignatureCachedObj = ArrayBuffer::Create(aCx, mSignature, aRv);
if (aRv.Failed()) {
return;
}
}
aValue.set(mSignatureCachedObj);
}
void AuthenticatorAssertionResponse::SetSignature(
const nsTArray<uint8_t>& aBuffer) {
mSignature.Assign(aBuffer);
}
void AuthenticatorAssertionResponse::GetUserHandle(
JSContext* aCx, JS::MutableHandle<JSObject*> aValue, ErrorResult& aRv) {
// Per
// https://w3c.github.io/webauthn/#ref-for-dom-authenticatorassertionresponse-userhandle%E2%91%A0
// this should return null if the handle is unset.
if (mUserHandle.IsEmpty()) {
aValue.set(nullptr);
} else {
if (!mUserHandleCachedObj) {
mUserHandleCachedObj = ArrayBuffer::Create(aCx, mUserHandle, aRv);
if (aRv.Failed()) {
return;
}
}
aValue.set(mUserHandleCachedObj);
}
}
void AuthenticatorAssertionResponse::SetUserHandle(
const nsTArray<uint8_t>& aBuffer) {
mUserHandle.Assign(aBuffer);
}
void AuthenticatorAssertionResponse::ToJSON(
AuthenticatorAssertionResponseJSON& aJSON, ErrorResult& aError) {
nsAutoCString clientDataJSONBase64;
nsresult rv = Base64URLEncode(
mClientDataJSON.Length(),
reinterpret_cast<const uint8_t*>(mClientDataJSON.get()),
mozilla::Base64URLEncodePaddingPolicy::Omit, clientDataJSONBase64);
// This will only fail if the length is so long that it overflows 32-bits
// when calculating the encoded size.
if (NS_FAILED(rv)) {
aError.ThrowDataError("clientDataJSON too long");
return;
}
aJSON.mClientDataJSON.Assign(NS_ConvertUTF8toUTF16(clientDataJSONBase64));
nsAutoCString authenticatorDataBase64;
rv = Base64URLEncode(
mAuthenticatorData.Length(), mAuthenticatorData.Elements(),
mozilla::Base64URLEncodePaddingPolicy::Omit, authenticatorDataBase64);
if (NS_FAILED(rv)) {
aError.ThrowDataError("authenticatorData too long");
return;
}
aJSON.mAuthenticatorData.Assign(
NS_ConvertUTF8toUTF16(authenticatorDataBase64));
nsAutoCString signatureBase64;
rv = Base64URLEncode(mSignature.Length(), mSignature.Elements(),
mozilla::Base64URLEncodePaddingPolicy::Omit,
signatureBase64);
if (NS_FAILED(rv)) {
aError.ThrowDataError("signature too long");
return;
}
aJSON.mSignature.Assign(NS_ConvertUTF8toUTF16(signatureBase64));
if (!mUserHandle.IsEmpty()) {
nsAutoCString userHandleBase64;
rv = Base64URLEncode(mUserHandle.Length(), mUserHandle.Elements(),
mozilla::Base64URLEncodePaddingPolicy::Omit,
userHandleBase64);
if (NS_FAILED(rv)) {
aError.ThrowDataError("userHandle too long");
return;
}
aJSON.mUserHandle.Construct(NS_ConvertUTF8toUTF16(userHandleBase64));
}
// attestationObject is not currently supported on assertion responses
}
} // namespace mozilla::dom
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