/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * 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.
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 * 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
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 */

#ifndef NormalizeAlgorithm_h
#define NormalizeAlgorithm_h

#include "public/platform/WebCryptoAlgorithm.h"
#include "wtf/Assertions.h"

namespace blink { class WebCryptoAlgorithm; }

namespace WebCore {

class Dictionary;
class ExceptionState;

enum AlgorithmOperation {
    Encrypt,
    Decrypt,
    Sign,
    Verify,
    Digest,
    GenerateKey,
    ImportKey,
    DeriveKey,
    WrapKey,
    UnwrapKey,
    // <---- End of list (keep this up-to-date)
    LastAlgorithmOperation = UnwrapKey,
};

// Normalizes an algorithm identifier (dictionary) into a WebCryptoAlgorithm. If
// normalization fails then returns false and sets the ExceptionState.
bool normalizeAlgorithm(const Dictionary&, AlgorithmOperation, blink::WebCryptoAlgorithm&, ExceptionState&) WARN_UNUSED_RETURN;

// Returns a null-terminated C-string literal. Caller can assume the pointer
// will be valid for the program's entire runtime.
const char* algorithmIdToName(blink::WebCryptoAlgorithmId);

} // namespace WebCore

#endif