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/* 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 "nsCOMPtr.h"
#include "nsComponentManagerUtils.h"
#include "nsKeyModule.h"
#include "nsString.h"
using namespace mozilla;
using namespace mozilla::psm;
NS_IMPL_ISUPPORTS(nsKeyObject, nsIKeyObject)
nsKeyObject::nsKeyObject()
: mSymKey(nullptr)
{
}
nsKeyObject::~nsKeyObject()
{
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return;
}
destructorSafeDestroyNSSReference();
shutdown(ShutdownCalledFrom::Object);
}
void
nsKeyObject::virtualDestroyNSSReference()
{
destructorSafeDestroyNSSReference();
}
void
nsKeyObject::destructorSafeDestroyNSSReference()
{
mSymKey = nullptr;
}
//////////////////////////////////////////////////////////////////////////////
// nsIKeyObject
NS_IMETHODIMP
nsKeyObject::InitKey(int16_t aAlgorithm, PK11SymKey* aKey)
{
if (!aKey || aAlgorithm != nsIKeyObject::HMAC) {
return NS_ERROR_INVALID_ARG;
}
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return NS_ERROR_NOT_AVAILABLE;
}
mSymKey.reset(aKey);
return NS_OK;
}
NS_IMETHODIMP
nsKeyObject::GetKeyObj(PK11SymKey** _retval)
{
if (!_retval) {
return NS_ERROR_INVALID_ARG;
}
*_retval = nullptr;
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!mSymKey) {
return NS_ERROR_NOT_INITIALIZED;
}
*_retval = mSymKey.get();
return NS_OK;
}
NS_IMETHODIMP
nsKeyObject::GetType(int16_t *_retval)
{
if (!_retval) {
return NS_ERROR_INVALID_ARG;
}
*_retval = nsIKeyObject::SYM_KEY;
return NS_OK;
}
//////////////////////////////////////////////////////////////////////////////
// nsIKeyObjectFactory
NS_IMPL_ISUPPORTS(nsKeyObjectFactory, nsIKeyObjectFactory)
nsKeyObjectFactory::nsKeyObjectFactory()
{
}
nsKeyObjectFactory::~nsKeyObjectFactory()
{
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return;
}
shutdown(ShutdownCalledFrom::Object);
}
NS_IMETHODIMP
nsKeyObjectFactory::KeyFromString(int16_t aAlgorithm, const nsACString& aKey,
nsIKeyObject** _retval)
{
if (!_retval || aAlgorithm != nsIKeyObject::HMAC) {
return NS_ERROR_INVALID_ARG;
}
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return NS_ERROR_NOT_AVAILABLE;
}
CK_MECHANISM_TYPE cipherMech = CKM_GENERIC_SECRET_KEY_GEN;
CK_ATTRIBUTE_TYPE cipherOperation = CKA_SIGN;
nsresult rv;
nsCOMPtr<nsIKeyObject> key(
do_CreateInstance(NS_KEYMODULEOBJECT_CONTRACTID, &rv));
if (NS_FAILED(rv)) {
return rv;
}
// Convert the raw string into a SECItem
const nsCString& flatKey = PromiseFlatCString(aKey);
SECItem keyItem;
keyItem.data = (unsigned char*)flatKey.get();
keyItem.len = flatKey.Length();
UniquePK11SlotInfo slot(PK11_GetBestSlot(cipherMech, nullptr));
if (!slot) {
return NS_ERROR_FAILURE;
}
UniquePK11SymKey symKey(PK11_ImportSymKey(slot.get(), cipherMech,
PK11_OriginUnwrap, cipherOperation,
&keyItem, nullptr));
if (!symKey) {
return NS_ERROR_FAILURE;
}
rv = key->InitKey(aAlgorithm, symKey.release());
if (NS_FAILED(rv)) {
return rv;
}
key.swap(*_retval);
return NS_OK;
}
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