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/*
* Copyright (C) 2021 Apple 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 "Permissions.h"
#include "Exception.h"
#include "FeaturePolicy.h"
#include "Frame.h"
#include "JSDOMPromiseDeferred.h"
#include "JSPermissionDescriptor.h"
#include "JSPermissionStatus.h"
#include "Navigator.h"
#include "Page.h"
#include "PermissionController.h"
#include "PermissionDescriptor.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(Permissions);
Ref<Permissions> Permissions::create(Navigator& navigator)
{
return adoptRef(*new Permissions(navigator));
}
Permissions::Permissions(Navigator& navigator)
: m_navigator(navigator)
{
if (auto context = navigator.scriptExecutionContext())
m_controller = context->permissionController();
}
Navigator* Permissions::navigator()
{
return m_navigator.get();
}
Permissions::~Permissions() = default;
static bool isAllowedByFeaturePolicy(const Document& document, PermissionName name)
{
switch (name) {
case PermissionName::Camera:
return isFeaturePolicyAllowedByDocumentAndAllOwners(FeaturePolicy::Type::Camera, document, LogFeaturePolicyFailure::No);
case PermissionName::Geolocation:
return isFeaturePolicyAllowedByDocumentAndAllOwners(FeaturePolicy::Type::Geolocation, document, LogFeaturePolicyFailure::No);
case PermissionName::Microphone:
return isFeaturePolicyAllowedByDocumentAndAllOwners(FeaturePolicy::Type::Microphone, document, LogFeaturePolicyFailure::No);
default:
return true;
}
}
void Permissions::query(JSC::Strong<JSC::JSObject> permissionDescriptorValue, DOMPromiseDeferred<IDLInterface<PermissionStatus>>&& promise)
{
// FIXME: support permissions in WorkerNavigator.
if (!m_controller) {
promise.reject(Exception { NotSupportedError });
return;
}
auto context = m_navigator ? m_navigator->scriptExecutionContext() : nullptr;
if (!context || !context->globalObject()) {
promise.reject(Exception { InvalidStateError, "The context is invalid"_s });
return;
}
if (!permissionDescriptorValue) {
promise.reject(Exception { DataError, "The parameter is invalid"_s });
return;
}
JSC::VM& vm = context->globalObject()->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
auto parameterDescriptor = convert<IDLDictionary<PermissionDescriptor>>(*context->globalObject(), permissionDescriptorValue.get());
if (UNLIKELY(scope.exception())) {
promise.reject(Exception { ExistingExceptionError });
return;
}
if (is<Document>(context) && !isAllowedByFeaturePolicy(downcast<Document>(*context), parameterDescriptor.name)) {
context->postTask([parameterDescriptor, promise = WTFMove(promise)](auto& context) mutable {
promise.resolve(PermissionStatus::create(context, PermissionState::Denied, parameterDescriptor));
});
return;
}
auto* origin = context->securityOrigin();
auto originData = origin ? origin->data() : SecurityOriginData { };
m_controller->query(ClientOrigin { context->topOrigin().data(), originData }, PermissionDescriptor { parameterDescriptor }, [this, protectedThis = Ref { *this }, parameterDescriptor, promise = WTFMove(promise)](auto permissionState) mutable {
auto context = m_navigator ? m_navigator->scriptExecutionContext() : nullptr;
if (!context || !context->globalObject())
return;
context->postTask([parameterDescriptor, promise = WTFMove(promise), permissionState = WTFMove(permissionState)](auto& context) mutable {
if (!permissionState) {
promise.reject(Exception { NotSupportedError });
return;
}
promise.resolve(PermissionStatus::create(context, *permissionState, parameterDescriptor));
});
});
}
} // namespace WebCore
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