dom/crypto/CryptoBuffer.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_CryptoBuffer_h
   8 #define mozilla_dom_CryptoBuffer_h
   9
  10 #include "nsTArray.h"
  11 #include "seccomon.h"
  12 #include "mozilla/dom/TypedArray.h"
  13
  14 namespace mozilla::dom {
  15
  16 class ArrayBufferViewOrArrayBuffer;
  17 class OwningArrayBufferViewOrArrayBuffer;
  18
  19 class CryptoBuffer : public FallibleTArray<uint8_t> {
  20  public:
  21   uint8_t* Assign(const CryptoBuffer& aData);
  22   uint8_t* Assign(const uint8_t* aData, uint32_t aLength);
  23   uint8_t* Assign(const nsACString& aString);
  24   uint8_t* Assign(const SECItem* aItem);
  25   uint8_t* Assign(const nsTArray<uint8_t>& aData);
  26   uint8_t* Assign(const ArrayBuffer& aData);
  27   uint8_t* Assign(const ArrayBufferView& aData);
  28   uint8_t* Assign(const ArrayBufferViewOrArrayBuffer& aData);
  29   uint8_t* Assign(const OwningArrayBufferViewOrArrayBuffer& aData);
  30   uint8_t* Assign(const Uint8Array& aArray);
  31
  32   uint8_t* AppendSECItem(const SECItem* aItem);
  33   uint8_t* AppendSECItem(const SECItem& aItem);
  34
  35   nsresult FromJwkBase64(const nsString& aBase64);
  36   nsresult ToJwkBase64(nsString& aBase64) const;
  37   bool ToSECItem(PLArenaPool* aArena, SECItem* aItem) const;
  38   JSObject* ToUint8Array(JSContext* aCx) const;
  39   JSObject* ToArrayBuffer(JSContext* aCx) const;
  40   bool ToNewUnsignedBuffer(uint8_t** aBuf, uint32_t* aBufLen) const;
  41
  42   bool GetBigIntValue(unsigned long& aRetVal);
  43
  44   CryptoBuffer InfallibleClone() const {
  45     CryptoBuffer result;
  46     if (!result.Assign(*this)) {
  47       MOZ_CRASH("Out of memory");
  48     }
  49     return result;
  50   }
  51 };
  52
  53 }  // namespace mozilla::dom
  54
  55 #endif  // mozilla_dom_CryptoBuffer_h