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serenity/Userland/Libraries/LibWeb/Crypto/CryptoKey.cpp

113 lines
3.5 KiB
C++

/*
* Copyright (c) 2023, stelar7 <dudedbz@gmail.com>
* Copyright (c) 2024, Andrew Kaster <akaster@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Memory.h>
#include <LibJS/Runtime/Array.h>
#include <LibWeb/Bindings/ExceptionOrUtils.h>
#include <LibWeb/Crypto/CryptoKey.h>
namespace Web::Crypto {
JS_DEFINE_ALLOCATOR(CryptoKey);
JS_DEFINE_ALLOCATOR(CryptoKeyPair);
JS::NonnullGCPtr<CryptoKey> CryptoKey::create(JS::Realm& realm, InternalKeyData key_data)
{
return realm.heap().allocate<CryptoKey>(realm, realm, move(key_data));
}
CryptoKey::CryptoKey(JS::Realm& realm, InternalKeyData key_data)
: PlatformObject(realm)
, m_algorithm(Object::create(realm, nullptr))
, m_usages(Object::create(realm, nullptr))
, m_key_data(move(key_data))
{
}
CryptoKey::~CryptoKey()
{
m_key_data.visit(
[](ByteBuffer& data) { secure_zero(data.data(), data.size()); },
[](auto& data) { secure_zero(reinterpret_cast<u8*>(&data), sizeof(data)); });
}
void CryptoKey::initialize(JS::Realm& realm)
{
Base::initialize(realm);
set_prototype(&Bindings::ensure_web_prototype<Bindings::CryptoKeyPrototype>(realm, "CryptoKey"_fly_string));
}
void CryptoKey::visit_edges(Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_algorithm);
visitor.visit(m_usages);
}
void CryptoKey::set_usages(Vector<Bindings::KeyUsage> usages)
{
m_key_usages = move(usages);
auto& realm = this->realm();
m_usages = JS::Array::create_from<Bindings::KeyUsage>(realm, m_key_usages.span(), [&](auto& key_usage) -> JS::Value {
return JS::PrimitiveString::create(realm.vm(), Bindings::idl_enum_to_string(key_usage));
});
}
JS::NonnullGCPtr<CryptoKeyPair> CryptoKeyPair::create(JS::Realm& realm, JS::NonnullGCPtr<CryptoKey> public_key, JS::NonnullGCPtr<CryptoKey> private_key)
{
return realm.heap().allocate<CryptoKeyPair>(realm, realm, public_key, private_key);
}
CryptoKeyPair::CryptoKeyPair(JS::Realm& realm, JS::NonnullGCPtr<CryptoKey> public_key, JS::NonnullGCPtr<CryptoKey> private_key)
: Object(ConstructWithPrototypeTag::Tag, realm.intrinsics().object_prototype())
, m_public_key(public_key)
, m_private_key(private_key)
{
}
void CryptoKeyPair::initialize(JS::Realm& realm)
{
define_native_accessor(realm, "publicKey", public_key_getter, {}, JS::Attribute::Enumerable | JS::Attribute::Configurable);
define_native_accessor(realm, "privateKey", private_key_getter, {}, JS::Attribute::Enumerable | JS::Attribute::Configurable);
Base::initialize(realm);
}
void CryptoKeyPair::visit_edges(Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_public_key);
visitor.visit(m_private_key);
}
static JS::ThrowCompletionOr<CryptoKeyPair*> impl_from(JS::VM& vm)
{
auto this_value = vm.this_value();
JS::Object* this_object = nullptr;
if (this_value.is_nullish())
this_object = &vm.current_realm()->global_object();
else
this_object = TRY(this_value.to_object(vm));
if (!is<CryptoKeyPair>(this_object))
return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "CryptoKeyPair");
return static_cast<CryptoKeyPair*>(this_object);
}
JS_DEFINE_NATIVE_FUNCTION(CryptoKeyPair::public_key_getter)
{
auto* impl = TRY(impl_from(vm));
return TRY(Bindings::throw_dom_exception_if_needed(vm, [&] { return impl->public_key(); }));
}
JS_DEFINE_NATIVE_FUNCTION(CryptoKeyPair::private_key_getter)
{
auto* impl = TRY(impl_from(vm));
return TRY(Bindings::throw_dom_exception_if_needed(vm, [&] { return impl->private_key(); }));
}
}