michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #include "Crypto.h"
michael@0: #include "jsfriendapi.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsIRandomGenerator.h"
michael@0: #include "nsPIDOMWindow.h"
michael@0: #include "MainThreadUtils.h"
michael@0: #include "nsXULAppAPI.h"
michael@0: 
michael@0: #include "mozilla/dom/ContentChild.h"
michael@0: #include "mozilla/dom/CryptoBinding.h"
michael@0: #include "nsServiceManagerUtils.h"
michael@0: 
michael@0: using mozilla::dom::ContentChild;
michael@0: 
michael@0: using namespace js::ArrayBufferView;
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Crypto)
michael@0:   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
michael@0:   NS_INTERFACE_MAP_ENTRY(nsISupports)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIDOMCrypto)
michael@0: NS_INTERFACE_MAP_END
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTING_ADDREF(Crypto)
michael@0: NS_IMPL_CYCLE_COLLECTING_RELEASE(Crypto)
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(Crypto, mWindow)
michael@0: 
michael@0: Crypto::Crypto()
michael@0: {
michael@0:   MOZ_COUNT_CTOR(Crypto);
michael@0:   SetIsDOMBinding();
michael@0: }
michael@0: 
michael@0: Crypto::~Crypto()
michael@0: {
michael@0:   MOZ_COUNT_DTOR(Crypto);
michael@0: }
michael@0: 
michael@0: void
michael@0: Crypto::Init(nsIDOMWindow* aWindow)
michael@0: {
michael@0:   mWindow = do_QueryInterface(aWindow);
michael@0:   MOZ_ASSERT(mWindow);
michael@0: }
michael@0: 
michael@0: /* virtual */ JSObject*
michael@0: Crypto::WrapObject(JSContext* aCx)
michael@0: {
michael@0:   return CryptoBinding::Wrap(aCx, this);
michael@0: }
michael@0: 
michael@0: void
michael@0: Crypto::GetRandomValues(JSContext* aCx, const ArrayBufferView& aArray,
michael@0: 			JS::MutableHandle<JSObject*> aRetval,
michael@0: 			ErrorResult& aRv)
michael@0: {
michael@0:   NS_ABORT_IF_FALSE(NS_IsMainThread(), "Called on the wrong thread");
michael@0: 
michael@0:   JS::Rooted<JSObject*> view(aCx, aArray.Obj());
michael@0: 
michael@0:   // Throw if the wrong type of ArrayBufferView is passed in
michael@0:   // (Part of the Web Crypto API spec)
michael@0:   switch (JS_GetArrayBufferViewType(view)) {
michael@0:     case TYPE_INT8:
michael@0:     case TYPE_UINT8:
michael@0:     case TYPE_UINT8_CLAMPED:
michael@0:     case TYPE_INT16:
michael@0:     case TYPE_UINT16:
michael@0:     case TYPE_INT32:
michael@0:     case TYPE_UINT32:
michael@0:       break;
michael@0:     default:
michael@0:       aRv.Throw(NS_ERROR_DOM_TYPE_MISMATCH_ERR);
michael@0:       return;
michael@0:   }
michael@0: 
michael@0:   aArray.ComputeLengthAndData();
michael@0:   uint32_t dataLen = aArray.Length();
michael@0:   if (dataLen == 0) {
michael@0:     NS_WARNING("ArrayBufferView length is 0, cannot continue");
michael@0:     aRetval.set(view);
michael@0:     return;
michael@0:   } else if (dataLen > 65536) {
michael@0:     aRv.Throw(NS_ERROR_DOM_QUOTA_EXCEEDED_ERR);
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   uint8_t* data = aArray.Data();
michael@0: 
michael@0:   if (XRE_GetProcessType() != GeckoProcessType_Default) {
michael@0:     InfallibleTArray<uint8_t> randomValues;
michael@0:     // Tell the parent process to generate random values via PContent
michael@0:     ContentChild* cc = ContentChild::GetSingleton();
michael@0:     if (!cc->SendGetRandomValues(dataLen, &randomValues) ||
michael@0:         randomValues.Length() == 0) {
michael@0:       aRv.Throw(NS_ERROR_FAILURE);
michael@0:       return;
michael@0:     }
michael@0:     NS_ASSERTION(dataLen == randomValues.Length(),
michael@0:                  "Invalid length returned from parent process!");
michael@0:     memcpy(data, randomValues.Elements(), dataLen);
michael@0:   } else {
michael@0:     uint8_t *buf = GetRandomValues(dataLen);
michael@0: 
michael@0:     if (!buf) {
michael@0:       aRv.Throw(NS_ERROR_FAILURE);
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     memcpy(data, buf, dataLen);
michael@0:     NS_Free(buf);
michael@0:   }
michael@0: 
michael@0:   aRetval.set(view);
michael@0: }
michael@0: 
michael@0: #ifndef MOZ_DISABLE_CRYPTOLEGACY
michael@0: // Stub out the legacy nsIDOMCrypto methods. The actual
michael@0: // implementations are in security/manager/ssl/src/nsCrypto.{cpp,h}
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: Crypto::GetEnableSmartCardEvents(bool *aEnableSmartCardEvents)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: Crypto::SetEnableSmartCardEvents(bool aEnableSmartCardEvents)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: bool
michael@0: Crypto::EnableSmartCardEvents()
michael@0: {
michael@0:   return false;
michael@0: }
michael@0: 
michael@0: void
michael@0: Crypto::SetEnableSmartCardEvents(bool aEnable, ErrorResult& aRv)
michael@0: {
michael@0:   aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
michael@0: }
michael@0: 
michael@0: void
michael@0: Crypto::GetVersion(nsString& aVersion)
michael@0: {
michael@0: }
michael@0: 
michael@0: mozilla::dom::CRMFObject*
michael@0: Crypto::GenerateCRMFRequest(JSContext* aContext,
michael@0:                             const nsCString& aReqDN,
michael@0:                             const nsCString& aRegToken,
michael@0:                             const nsCString& aAuthenticator,
michael@0:                             const nsCString& aEaCert,
michael@0:                             const nsCString& aJsCallback,
michael@0:                             const Sequence<JS::Value>& aArgs,
michael@0:                             ErrorResult& aRv)
michael@0: {
michael@0:   aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: void
michael@0: Crypto::ImportUserCertificates(const nsAString& aNickname,
michael@0:                                const nsAString& aCmmfResponse,
michael@0:                                bool aDoForcedBackup,
michael@0:                                nsAString& aReturn,
michael@0:                                ErrorResult& aRv)
michael@0: {
michael@0:   aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
michael@0: }
michael@0: 
michael@0: void
michael@0: Crypto::SignText(JSContext* aContext,
michael@0:                  const nsAString& aStringToSign,
michael@0:                  const nsAString& aCaOption,
michael@0:                  const Sequence<nsCString>& aArgs,
michael@0:                  nsAString& aReturn)
michael@0: 
michael@0: {
michael@0:   aReturn.AssignLiteral("error:internalError");
michael@0: }
michael@0: 
michael@0: void
michael@0: Crypto::Logout(ErrorResult& aRv)
michael@0: {
michael@0:   aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
michael@0: }
michael@0: 
michael@0: #endif
michael@0: 
michael@0: /* static */ uint8_t*
michael@0: Crypto::GetRandomValues(uint32_t aLength)
michael@0: {
michael@0:   nsCOMPtr<nsIRandomGenerator> randomGenerator;
michael@0:   nsresult rv;
michael@0:   randomGenerator = do_GetService("@mozilla.org/security/random-generator;1");
michael@0:   NS_ENSURE_TRUE(randomGenerator, nullptr);
michael@0: 
michael@0:   uint8_t* buf;
michael@0:   rv = randomGenerator->GenerateRandomBytes(aLength, &buf);
michael@0: 
michael@0:   NS_ENSURE_SUCCESS(rv, nullptr);
michael@0: 
michael@0:   return buf;
michael@0: }
michael@0: 
michael@0: } // namespace dom
michael@0: } // namespace mozilla