1/*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1.  Redistributions of source code must retain the above copyright
8 *     notice, this list of conditions and the following disclaimer.
9 * 2.  Redistributions in binary form must reproduce the above copyright
10 *     notice, this list of conditions and the following disclaimer in the
11 *     documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include "config.h"
26#include "bindings/modules/v8/V8Crypto.h"
27
28#include "bindings/core/v8/ExceptionMessages.h"
29#include "bindings/core/v8/ExceptionState.h"
30#include "bindings/core/v8/V8Binding.h"
31#include "bindings/core/v8/custom/V8ArrayBufferViewCustom.h"
32#include "core/dom/ExceptionCode.h"
33#include "modules/crypto/Crypto.h"
34#include "wtf/ArrayBufferView.h"
35
36namespace blink {
37
38void V8Crypto::getRandomValuesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
39{
40    ExceptionState exceptionState(ExceptionState::ExecutionContext, "getRandomValues", "Crypto", info.Holder(), info.GetIsolate());
41    if (info.Length() < 1) {
42        exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
43        exceptionState.throwIfNeeded();
44        return;
45    }
46
47    v8::Handle<v8::Value> buffer = info[0];
48    if (!V8ArrayBufferView::hasInstance(buffer, info.GetIsolate())) {
49        exceptionState.throwTypeError("First argument is not an ArrayBufferView");
50    } else {
51        ArrayBufferView* arrayBufferView = V8ArrayBufferView::toImpl(v8::Handle<v8::Object>::Cast(buffer));
52        ASSERT(arrayBufferView);
53
54        Crypto* crypto = V8Crypto::toImpl(info.Holder());
55        crypto->getRandomValues(arrayBufferView, exceptionState);
56    }
57
58    if (exceptionState.throwIfNeeded())
59        return;
60
61    v8SetReturnValue(info, buffer);
62}
63
64} // namespace blink
65