1 files changed, 55 insertions, 0 deletions
diff --git a/dom/crypto/CryptoBuffer.h b/dom/crypto/CryptoBuffer.h
new file mode 100644
index 0000000000..7d1775f499
--- /dev/null
+++ b/dom/crypto/CryptoBuffer.h
@@ -0,0 +1,55 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_CryptoBuffer_h
+#define mozilla_dom_CryptoBuffer_h
+
+#include "nsTArray.h"
+#include "seccomon.h"
+#include "mozilla/dom/TypedArray.h"
+
+namespace mozilla::dom {
+
+class ArrayBufferViewOrArrayBuffer;
+class OwningArrayBufferViewOrArrayBuffer;
+
+class CryptoBuffer : public FallibleTArray<uint8_t> {
+ public:
+  uint8_t* Assign(const CryptoBuffer& aData);
+  uint8_t* Assign(const uint8_t* aData, uint32_t aLength);
+  uint8_t* Assign(const nsACString& aString);
+  uint8_t* Assign(const SECItem* aItem);
+  uint8_t* Assign(const nsTArray<uint8_t>& aData);
+  uint8_t* Assign(const ArrayBuffer& aData);
+  uint8_t* Assign(const ArrayBufferView& aData);
+  uint8_t* Assign(const ArrayBufferViewOrArrayBuffer& aData);
+  uint8_t* Assign(const OwningArrayBufferViewOrArrayBuffer& aData);
+  uint8_t* Assign(const Uint8Array& aArray);
+
+  uint8_t* AppendSECItem(const SECItem* aItem);
+  uint8_t* AppendSECItem(const SECItem& aItem);
+
+  nsresult FromJwkBase64(const nsString& aBase64);
+  nsresult ToJwkBase64(nsString& aBase64) const;
+  bool ToSECItem(PLArenaPool* aArena, SECItem* aItem) const;
+  JSObject* ToUint8Array(JSContext* aCx) const;
+  JSObject* ToArrayBuffer(JSContext* aCx) const;
+  bool ToNewUnsignedBuffer(uint8_t** aBuf, uint32_t* aBufLen) const;
+
+  bool GetBigIntValue(unsigned long& aRetVal);
+
+  CryptoBuffer InfallibleClone() const {
+    CryptoBuffer result;
+    if (!result.Assign(*this)) {
+      MOZ_CRASH("Out of memory");
+    }
+    return result;
+  }
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_CryptoBuffer_h