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/*
* Copyright (C) 2019 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.
*/
#pragma once
#include "PublicSuffixStore.h"
#include "SecurityOriginData.h"
#include <wtf/HashTraits.h>
#include <wtf/TZoneMallocInlines.h>
#include <wtf/URL.h>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class RegistrableDomain {
WTF_MAKE_TZONE_ALLOCATED_INLINE(RegistrableDomain);
public:
RegistrableDomain() = default;
explicit RegistrableDomain(const URL& url)
: RegistrableDomain(registrableDomainFromHost(url.host().toString()))
{
}
explicit RegistrableDomain(const SecurityOriginData& origin)
: RegistrableDomain(registrableDomainFromHost(origin.host()))
{
}
static RegistrableDomain fromRawString(String&& origin)
{
return RegistrableDomain(WTFMove(origin));
}
bool isEmpty() const { return m_registrableDomain.isEmpty() || m_registrableDomain == "nullOrigin"_s; }
const String& string() const { return m_registrableDomain; }
friend bool operator==(const RegistrableDomain&, const RegistrableDomain&) = default;
bool operator==(ASCIILiteral other) const { return m_registrableDomain == other; }
bool matches(const URL& url) const
{
return matches(url.host());
}
bool matches(const SecurityOriginData& origin) const
{
return matches(origin.host());
}
RegistrableDomain isolatedCopy() const & { return RegistrableDomain { m_registrableDomain.isolatedCopy() }; }
RegistrableDomain isolatedCopy() && { return RegistrableDomain { WTFMove(m_registrableDomain).isolatedCopy() }; }
RegistrableDomain(WTF::HashTableDeletedValueType)
: m_registrableDomain(WTF::HashTableDeletedValue) { }
bool isHashTableDeletedValue() const { return m_registrableDomain.isHashTableDeletedValue(); }
unsigned hash() const { return m_registrableDomain.hash(); }
struct RegistrableDomainHash {
static unsigned hash(const RegistrableDomain& registrableDomain) { return ASCIICaseInsensitiveHash::hash(registrableDomain.m_registrableDomain.impl()); }
static bool equal(const RegistrableDomain& a, const RegistrableDomain& b) { return equalIgnoringASCIICase(a.string(), b.string()); }
static const bool safeToCompareToEmptyOrDeleted = false;
};
static RegistrableDomain uncheckedCreateFromRegistrableDomainString(const String& domain)
{
return RegistrableDomain { String { domain } };
}
static RegistrableDomain uncheckedCreateFromHost(const String& host)
{
auto registrableDomain = PublicSuffixStore::singleton().topPrivatelyControlledDomain(host);
if (registrableDomain.isEmpty())
return uncheckedCreateFromRegistrableDomainString(host);
return RegistrableDomain { WTFMove(registrableDomain) };
}
private:
explicit RegistrableDomain(String&& domain)
: m_registrableDomain { domain.isEmpty() ? "nullOrigin"_s : WTFMove(domain) }
{
}
bool matches(StringView host) const
{
if (host.isEmpty() && m_registrableDomain == "nullOrigin"_s)
return true;
if (!host.endsWith(m_registrableDomain))
return false;
if (host.length() == m_registrableDomain.length())
return true;
return host[host.length() - m_registrableDomain.length() - 1] == '.';
}
static inline String registrableDomainFromHost(const String& host)
{
auto domain = PublicSuffixStore::singleton().topPrivatelyControlledDomain(host);
if (host.isEmpty())
domain = "nullOrigin"_s;
else if (domain.isEmpty())
domain = host;
return domain;
}
String m_registrableDomain;
};
inline bool areRegistrableDomainsEqual(const URL& a, const URL& b)
{
return RegistrableDomain(a).matches(b);
}
} // namespace WebCore
namespace WTF {
template<> struct DefaultHash<WebCore::RegistrableDomain> : WebCore::RegistrableDomain::RegistrableDomainHash { };
template<> struct HashTraits<WebCore::RegistrableDomain> : SimpleClassHashTraits<WebCore::RegistrableDomain> { };
template<> class StringTypeAdapter<WebCore::RegistrableDomain, void> : public StringTypeAdapter<String, void> {
public:
StringTypeAdapter(const WebCore::RegistrableDomain& domain)
: StringTypeAdapter<String, void>(domain.string())
{ }
};
} // namespace WTF
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