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/*
* Copyright (C) 2024 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 "ScriptTelemetry.h"
#include <WebCore/RegistrableDomain.h>
#include <WebCore/SecurityOrigin.h>
namespace WebKit {
static void initializeFilterRules(Vector<String>&& source, MemoryCompactRobinHoodHashSet<String>& target)
{
target.reserveInitialCapacity(source.size());
for (auto& host : source)
target.add(host);
}
ScriptTelemetryFilter::ScriptTelemetryFilter(ScriptTelemetryRules&& rules)
{
initializeFilterRules(WTFMove(rules.thirdPartyHosts), m_thirdPartyHosts);
initializeFilterRules(WTFMove(rules.thirdPartyTopDomains), m_thirdPartyTopDomains);
initializeFilterRules(WTFMove(rules.firstPartyHosts), m_firstPartyHosts);
initializeFilterRules(WTFMove(rules.firstPartyTopDomains), m_firstPartyTopDomains);
}
bool ScriptTelemetryFilter::matches(const URL& url, const WebCore::SecurityOrigin& topOrigin)
{
WebCore::RegistrableDomain scriptTopDomain { url };
auto scriptTopDomainName = scriptTopDomain.string();
if (scriptTopDomainName.isEmpty())
return false;
auto hostName = url.host().toStringWithoutCopying();
if (hostName.isEmpty())
return false;
if (!scriptTopDomain.matches(topOrigin.data())) {
if (m_thirdPartyHosts.contains(hostName))
return true;
if (m_thirdPartyTopDomains.contains(scriptTopDomainName))
return true;
}
if (UNLIKELY(m_firstPartyHosts.contains(hostName)))
return true;
if (UNLIKELY(m_firstPartyTopDomains.contains(scriptTopDomainName)))
return true;
return false;
}
} // namespace WebKit
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