diff -r 000000000000 -r 6474c204b198 dom/base/Crypto.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/base/Crypto.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,216 @@
+/* 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 "Crypto.h"
+#include "jsfriendapi.h"
+#include "nsCOMPtr.h"
+#include "nsIRandomGenerator.h"
+#include "nsPIDOMWindow.h"
+#include "MainThreadUtils.h"
+#include "nsXULAppAPI.h"
+
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/dom/CryptoBinding.h"
+#include "nsServiceManagerUtils.h"
+
+using mozilla::dom::ContentChild;
+
+using namespace js::ArrayBufferView;
+
+namespace mozilla {
+namespace dom {
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Crypto)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMCrypto)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(Crypto)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(Crypto)
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(Crypto, mWindow)
+
+Crypto::Crypto()
+{
+  MOZ_COUNT_CTOR(Crypto);
+  SetIsDOMBinding();
+}
+
+Crypto::~Crypto()
+{
+  MOZ_COUNT_DTOR(Crypto);
+}
+
+void
+Crypto::Init(nsIDOMWindow* aWindow)
+{
+  mWindow = do_QueryInterface(aWindow);
+  MOZ_ASSERT(mWindow);
+}
+
+/* virtual */ JSObject*
+Crypto::WrapObject(JSContext* aCx)
+{
+  return CryptoBinding::Wrap(aCx, this);
+}
+
+void
+Crypto::GetRandomValues(JSContext* aCx, const ArrayBufferView& aArray,
+			JS::MutableHandle<JSObject*> aRetval,
+			ErrorResult& aRv)
+{
+  NS_ABORT_IF_FALSE(NS_IsMainThread(), "Called on the wrong thread");
+
+  JS::Rooted<JSObject*> view(aCx, aArray.Obj());
+
+  // Throw if the wrong type of ArrayBufferView is passed in
+  // (Part of the Web Crypto API spec)
+  switch (JS_GetArrayBufferViewType(view)) {
+    case TYPE_INT8:
+    case TYPE_UINT8:
+    case TYPE_UINT8_CLAMPED:
+    case TYPE_INT16:
+    case TYPE_UINT16:
+    case TYPE_INT32:
+    case TYPE_UINT32:
+      break;
+    default:
+      aRv.Throw(NS_ERROR_DOM_TYPE_MISMATCH_ERR);
+      return;
+  }
+
+  aArray.ComputeLengthAndData();
+  uint32_t dataLen = aArray.Length();
+  if (dataLen == 0) {
+    NS_WARNING("ArrayBufferView length is 0, cannot continue");
+    aRetval.set(view);
+    return;
+  } else if (dataLen > 65536) {
+    aRv.Throw(NS_ERROR_DOM_QUOTA_EXCEEDED_ERR);
+    return;
+  }
+
+  uint8_t* data = aArray.Data();
+
+  if (XRE_GetProcessType() != GeckoProcessType_Default) {
+    InfallibleTArray<uint8_t> randomValues;
+    // Tell the parent process to generate random values via PContent
+    ContentChild* cc = ContentChild::GetSingleton();
+    if (!cc->SendGetRandomValues(dataLen, &randomValues) ||
+        randomValues.Length() == 0) {
+      aRv.Throw(NS_ERROR_FAILURE);
+      return;
+    }
+    NS_ASSERTION(dataLen == randomValues.Length(),
+                 "Invalid length returned from parent process!");
+    memcpy(data, randomValues.Elements(), dataLen);
+  } else {
+    uint8_t *buf = GetRandomValues(dataLen);
+
+    if (!buf) {
+      aRv.Throw(NS_ERROR_FAILURE);
+      return;
+    }
+
+    memcpy(data, buf, dataLen);
+    NS_Free(buf);
+  }
+
+  aRetval.set(view);
+}
+
+#ifndef MOZ_DISABLE_CRYPTOLEGACY
+// Stub out the legacy nsIDOMCrypto methods. The actual
+// implementations are in security/manager/ssl/src/nsCrypto.{cpp,h}
+
+NS_IMETHODIMP
+Crypto::GetEnableSmartCardEvents(bool *aEnableSmartCardEvents)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+Crypto::SetEnableSmartCardEvents(bool aEnableSmartCardEvents)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+bool
+Crypto::EnableSmartCardEvents()
+{
+  return false;
+}
+
+void
+Crypto::SetEnableSmartCardEvents(bool aEnable, ErrorResult& aRv)
+{
+  aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void
+Crypto::GetVersion(nsString& aVersion)
+{
+}
+
+mozilla::dom::CRMFObject*
+Crypto::GenerateCRMFRequest(JSContext* aContext,
+                            const nsCString& aReqDN,
+                            const nsCString& aRegToken,
+                            const nsCString& aAuthenticator,
+                            const nsCString& aEaCert,
+                            const nsCString& aJsCallback,
+                            const Sequence<JS::Value>& aArgs,
+                            ErrorResult& aRv)
+{
+  aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+  return nullptr;
+}
+
+void
+Crypto::ImportUserCertificates(const nsAString& aNickname,
+                               const nsAString& aCmmfResponse,
+                               bool aDoForcedBackup,
+                               nsAString& aReturn,
+                               ErrorResult& aRv)
+{
+  aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void
+Crypto::SignText(JSContext* aContext,
+                 const nsAString& aStringToSign,
+                 const nsAString& aCaOption,
+                 const Sequence<nsCString>& aArgs,
+                 nsAString& aReturn)
+
+{
+  aReturn.AssignLiteral("error:internalError");
+}
+
+void
+Crypto::Logout(ErrorResult& aRv)
+{
+  aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+#endif
+
+/* static */ uint8_t*
+Crypto::GetRandomValues(uint32_t aLength)
+{
+  nsCOMPtr<nsIRandomGenerator> randomGenerator;
+  nsresult rv;
+  randomGenerator = do_GetService("@mozilla.org/security/random-generator;1");
+  NS_ENSURE_TRUE(randomGenerator, nullptr);
+
+  uint8_t* buf;
+  rv = randomGenerator->GenerateRandomBytes(aLength, &buf);
+
+  NS_ENSURE_SUCCESS(rv, nullptr);
+
+  return buf;
+}
+
+} // namespace dom
+} // namespace mozilla