1 files changed, 54 insertions, 0 deletions
diff --git a/netwerk/base/nsSerializationHelper.cpp b/netwerk/base/nsSerializationHelper.cpp
new file mode 100644
index 0000000000..6e2efb7c57
--- /dev/null
+++ b/netwerk/base/nsSerializationHelper.cpp
@@ -0,0 +1,54 @@
+/* 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 "nsSerializationHelper.h"
+
+#include "mozilla/Base64.h"
+#include "nsISerializable.h"
+#include "nsIObjectOutputStream.h"
+#include "nsIObjectInputStream.h"
+#include "nsString.h"
+#include "nsBase64Encoder.h"
+#include "nsComponentManagerUtils.h"
+#include "nsStringStream.h"
+
+using namespace mozilla;
+
+nsresult NS_SerializeToString(nsISerializable* obj, nsACString& str) {
+  RefPtr<nsBase64Encoder> stream(new nsBase64Encoder());
+  if (!stream) return NS_ERROR_OUT_OF_MEMORY;
+
+  nsCOMPtr<nsIObjectOutputStream> objstream = NS_NewObjectOutputStream(stream);
+  nsresult rv =
+      objstream->WriteCompoundObject(obj, NS_GET_IID(nsISupports), true);
+  NS_ENSURE_SUCCESS(rv, rv);
+  return stream->Finish(str);
+}
+
+nsresult NS_DeserializeObject(const nsACString& str, nsISupports** obj) {
+  nsCString decodedData;
+  nsresult rv = Base64Decode(str, decodedData);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIInputStream> stream;
+  rv = NS_NewCStringInputStream(getter_AddRefs(stream), std::move(decodedData));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIObjectInputStream> objstream = NS_NewObjectInputStream(stream);
+  return objstream->ReadObject(true, obj);
+}
+
+NS_IMPL_ISUPPORTS(nsSerializationHelper, nsISerializationHelper)
+
+NS_IMETHODIMP
+nsSerializationHelper::SerializeToString(nsISerializable* serializable,
+                                         nsACString& _retval) {
+  return NS_SerializeToString(serializable, _retval);
+}
+
+NS_IMETHODIMP
+nsSerializationHelper::DeserializeObject(const nsACString& input,
+                                         nsISupports** _retval) {
+  return NS_DeserializeObject(input, _retval);
+}