/*
 * Copyright (C) 2012 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:
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
 */

#include "config.h"
#include "JSCrypto.h"

#include "ExceptionCode.h"
#include "JSDOMBinding.h"
#include <runtime/ArrayBufferView.h>
#include <runtime/Error.h>
#include <runtime/JSArrayBufferView.h>

using namespace JSC;

namespace WebCore {

JSValue JSCrypto::getRandomValues(ExecState* exec)
{
    if (exec->argumentCount() < 1)
        return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));

    JSValue buffer = exec->argument(0);
    RefPtr<ArrayBufferView> arrayBufferView = toArrayBufferView(buffer);
    if (!arrayBufferView)
        return throwTypeError(exec);

    ExceptionCode ec = 0;
    impl().getRandomValues(arrayBufferView.get(), ec);

    if (ec) {
        setDOMException(exec, ec);
        return jsUndefined();
    }

    return buffer;
}

} // namespace WebCore
