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/*
* Copyright (C) 2025 Igalia S.L. All rights reserved.
* Copyright (C) 2025 Metrological Group B.V.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#if USE(LIBRICE)
#include "GUniquePtrRice.h"
#include "SharedMemory.h"
#include <wtf/HexNumber.h>
#include <wtf/Scope.h>
#include <wtf/text/MakeString.h>
#include <wtf/text/StringBuilder.h>
#include <wtf/text/WTFString.h>
#ifndef RICE_CHECK_VERSION
#define RICE_CHECK_VERSION(major, minor, patch) \
(RICE_PROTO_MAJOR > (major) || \
(RICE_PROTO_MAJOR == (major) && RICE_PROTO_MINOR > (minor)) || \
(RICE_PROTO_MAJOR == (major) && RICE_PROTO_MINOR == (minor) && RICE_PROTO_PATCH >= (patch)))
#endif
namespace WebCore {
static inline String riceAddressToString(const RiceAddress* address, bool includePort = true)
{
std::array<uint8_t, 16> bytes;
auto size = rice_address_get_address_bytes(address, bytes.data());
StringBuilder builder;
switch (rice_address_get_family(address)) {
case RICE_ADDRESS_FAMILY_IPV4:
// Maximum capacity for 255.255.255.255:65535
builder.reserveCapacity(includePort ? 21 : 15);
for (unsigned i = 0; i < size; i++) {
if (i)
builder.append('.');
builder.append(static_cast<int>(bytes[i]));
}
break;
case RICE_ADDRESS_FAMILY_IPV6:
builder.reserveCapacity(includePort ? 47 : 39);
if (includePort)
builder.append('[');
for (unsigned i = 0; i < size; i++) {
if (i && !(i % 2))
builder.append(':');
builder.append(hex(bytes[i], 2));
}
if (includePort)
builder.append(']');
break;
}
if (includePort)
builder.append(':', rice_address_get_port(address));
builder.shrinkToFit();
return builder.toString();
}
static inline GUniquePtr<RiceAddress> riceAddressFromString(const String& address)
{
GUniquePtr<RiceAddress> result(rice_address_new_from_string(address.ascii().data()));
return result;
}
static inline std::optional<SharedMemory::Handle> riceTransmitToSharedMemoryHandle(RiceTransmit* /* transfer full */ transmit)
{
auto scopeExit = makeScopeExit([&] {
rice_transmit_clear(transmit);
});
return SharedMemoryHandle::createCopy(unsafeMakeSpan(transmit->data.ptr, transmit->data.size), SharedMemoryProtection::ReadOnly);
}
static inline RiceTransportType fromRTCIceProtocol(RTCIceProtocol protocol)
{
switch (protocol) {
case RTCIceProtocol::Tcp:
return RICE_TRANSPORT_TYPE_TCP;
case WebCore::RTCIceProtocol::Udp:
return RICE_TRANSPORT_TYPE_UDP;
};
return RICE_TRANSPORT_TYPE_UDP;
}
static inline RTCIceProtocol riceTransmitTransportToIceProtocol(const RiceTransmit& transmit)
{
switch (transmit.transport) {
case RICE_TRANSPORT_TYPE_TCP:
return RTCIceProtocol::Tcp;
case RICE_TRANSPORT_TYPE_UDP:
return RTCIceProtocol::Udp;
}
return RTCIceProtocol::Udp;
}
} // namespace WebCore
#endif // USE(LIBRICE)
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