/*
 * 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 "V8Crypto.h"

#include "Crypto.h"
#include "ExceptionCode.h"
#include "V8ArrayBufferView.h"
#include "V8Binding.h"
#include "V8Utilities.h"

#include <wtf/ArrayBufferView.h>

namespace WebCore {

v8::Handle<v8::Value> V8Crypto::getRandomValuesMethodCustom(const v8::Arguments& args)
{
    if (args.Length() < 1)
        return throwNotEnoughArgumentsError(args.GetIsolate());

    v8::Handle<v8::Value> buffer = args[0];
    if (!V8ArrayBufferView::HasInstance(buffer, args.GetIsolate(), worldType(args.GetIsolate())))
        return throwTypeError("First argument is not an ArrayBufferView", args.GetIsolate());

    ArrayBufferView* arrayBufferView = V8ArrayBufferView::toNative(v8::Handle<v8::Object>::Cast(buffer));
    ASSERT(arrayBufferView);

    Crypto* crypto = V8Crypto::toNative(args.Holder());
    ExceptionCode ec = 0;
    crypto->getRandomValues(arrayBufferView, ec);

    if (ec)
        return setDOMException(ec, args.GetIsolate());

    return buffer;    
}

} // namespace WebCore