mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 06:02:44 +00:00
2c6c9b73c8
Since we don't support IDL typedefs or unions yet, the responsibility of verifying the type of the argument is temporarily moved from the generated Wrapper to the implementation.
37 lines
2 KiB
C++
37 lines
2 KiB
C++
/*
|
|
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/Random.h>
|
|
#include <LibJS/Runtime/TypedArray.h>
|
|
#include <LibWeb/Bindings/Wrapper.h>
|
|
#include <LibWeb/Crypto/Crypto.h>
|
|
|
|
namespace Web::Crypto {
|
|
|
|
DOM::ExceptionOr<JS::Value> Crypto::get_random_values(JS::Value array) const
|
|
{
|
|
// 1. If array is not an Int8Array, Uint8Array, Uint8ClampedArray, Int16Array, Uint16Array, Int32Array, Uint32Array, BigInt64Array, or BigUint64Array, then throw a TypeMismatchError and terminate the algorithm.
|
|
if (!array.is_object() || !(is<JS::Int8Array>(array.as_object()) || is<JS::Uint8Array>(array.as_object()) || is<JS::Uint8ClampedArray>(array.as_object()) || is<JS::Int16Array>(array.as_object()) || is<JS::Uint16Array>(array.as_object()) || is<JS::Int32Array>(array.as_object()) || is<JS::Uint32Array>(array.as_object()) || is<JS::BigInt64Array>(array.as_object()) || is<JS::BigUint64Array>(array.as_object())))
|
|
return DOM::TypeMismatchError::create("array must be one of Int8Array, Uint8Array, Uint8ClampedArray, Int16Array, Uint16Array, Int32Array, Uint32Array, BigInt64Array, or BigUint64Array");
|
|
auto& typed_array = static_cast<JS::TypedArrayBase&>(array.as_object());
|
|
|
|
// 2. If the byteLength of array is greater than 65536, throw a QuotaExceededError and terminate the algorithm.
|
|
if (typed_array.byte_length() > 65536)
|
|
return DOM::QuotaExceededError::create("array's byteLength may not be greater than 65536");
|
|
|
|
// IMPLEMENTATION DEFINED: If the viewed array buffer is detached, throw a InvalidStateError and terminate the algorithm.
|
|
if (typed_array.viewed_array_buffer()->is_detached())
|
|
return DOM::InvalidStateError::create("array is detached");
|
|
// FIXME: Handle SharedArrayBuffers
|
|
|
|
// 3. Overwrite all elements of array with cryptographically strong random values of the appropriate type.
|
|
fill_with_random(typed_array.viewed_array_buffer()->buffer().data(), typed_array.viewed_array_buffer()->buffer().size());
|
|
|
|
// 4. Return array.
|
|
return array;
|
|
}
|
|
|
|
}
|