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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_CRYPTO_RESULT_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_CRYPTO_RESULT_H_
#include "base/containers/span.h"
#include "base/synchronization/atomic_flag.h"
#include "third_party/blink/public/platform/web_crypto.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/thread_safe_ref_counted.h"
namespace blink {
// Allows non-Blink webcrypto threads to query for cancellation status.
class CryptoResultCancel : public ThreadSafeRefCounted<CryptoResultCancel> {
public:
bool Cancelled() const { return cancelled_.IsSet(); }
void Cancel() { cancelled_.Set(); }
private:
base::AtomicFlag cancelled_;
};
// Receives notification of completion of the crypto operation.
class PLATFORM_EXPORT CryptoResult : public GarbageCollected<CryptoResult> {
public:
virtual ~CryptoResult() = default;
virtual void CompleteWithError(WebCryptoErrorType, const WebString&) = 0;
virtual void CompleteWithBuffer(base::span<const uint8_t> bytes) = 0;
virtual void CompleteWithJson(std::string_view utf8_data) = 0;
virtual void CompleteWithBoolean(bool) = 0;
virtual void CompleteWithKey(const WebCryptoKey&) = 0;
virtual void CompleteWithKeyPair(const WebCryptoKey& public_key,
const WebCryptoKey& private_key) = 0;
virtual WebCryptoWarningType GetWarning() = 0;
virtual void SetWarning(WebCryptoWarningType code) = 0;
virtual ExecutionContext* GetExecutionContext() const = 0;
virtual void Trace(Visitor* visitor) const {}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_CRYPTO_RESULT_H_
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