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#pragma once
#include <util/network/sock.h>
#include "http.h"
class TInet64StreamSocket: public TStreamSocket {
protected:
TInet64StreamSocket(const TInet64StreamSocket& parent, SOCKET fd)
: TStreamSocket(fd)
, AF(parent.AF)
{
}
public:
TInet64StreamSocket(int af = {}) {
CreateSocket(af);
}
std::shared_ptr<ISockAddr> MakeAddress(const TString& address, int port) {
if (!address) {
if (AF == AF_INET6) {
return std::make_shared<TSockAddrInet6>("::", port);
} else {
return std::make_shared<TSockAddrInet>(INADDR_ANY, port);
}
}
if (NHttp::IsIPv6(address)) {
return std::make_shared<TSockAddrInet6>(address.data(), port);
} else if (NHttp::IsIPv4(address)) {
return std::make_shared<TSockAddrInet>(address.data(), port);
}
struct addrinfo hints = {
.ai_flags = AI_PASSIVE,
.ai_family = AF,
.ai_socktype = SOCK_STREAM,
};
struct addrinfo* gai_res = nullptr;
int gai_ret = getaddrinfo(address.data(), nullptr, &hints, &gai_res);
std::shared_ptr<ISockAddr> result;
if (gai_ret == 0 && gai_res->ai_addr) {
switch (gai_res->ai_addr->sa_family) {
case AF_INET6: {
std::shared_ptr<TSockAddrInet6> resultIp6 = std::make_shared<TSockAddrInet6>();
if (resultIp6->Size() >= gai_res->ai_addrlen) {
memcpy(resultIp6->SockAddr(), gai_res->ai_addr, gai_res->ai_addrlen);
resultIp6->SetPort(port);
result = std::move(resultIp6);
}
}
break;
case AF_INET: {
std::shared_ptr<TSockAddrInet> resultIp4 = std::make_shared<TSockAddrInet>();
if (resultIp4->Size() >= gai_res->ai_addrlen) {
memcpy(resultIp4->SockAddr(), gai_res->ai_addr, gai_res->ai_addrlen);
resultIp4->SetPort(port);
result = std::move(resultIp4);
}
}
break;
}
}
if (gai_res) {
freeaddrinfo(gai_res);
}
if (result) {
return result;
}
throw yexception() << "Unable to resolve address " << address;
}
static int GuessAddressFamily(const TString& address) {
if (!address) {
return 0;
}
if (NHttp::IsIPv6(address)) {
return AF_INET6;
} else if (NHttp::IsIPv4(address)) {
return AF_INET;
}
struct addrinfo hints = {
.ai_flags = AI_PASSIVE,
.ai_family = 0,
.ai_socktype = SOCK_STREAM,
};
struct addrinfo* gai_res = nullptr;
int gai_ret = getaddrinfo(address.data(), nullptr, &hints, &gai_res);
if (gai_ret == 0 && gai_res->ai_addr) {
switch (gai_res->ai_addr->sa_family) {
case AF_INET:
case AF_INET6:
return gai_res->ai_addr->sa_family;
}
}
if (gai_res) {
freeaddrinfo(gai_res);
}
return 0;
}
static std::shared_ptr<ISockAddr> MakeAddress(const sockaddr_storage& storage) {
std::shared_ptr<ISockAddr> addr;
switch (storage.ss_family) {
case AF_INET:
addr = std::make_shared<TSockAddrInet>();
break;
case AF_INET6:
addr = std::make_shared<TSockAddrInet6>();
break;
}
if (addr) {
memcpy(addr->SockAddr(), &storage, addr->Size());
}
return addr;
}
std::optional<TInet64StreamSocket> Accept(std::shared_ptr<ISockAddr>& acceptedAddr) {
sockaddr_storage addrStorage = {};
socklen_t addrLen = sizeof(addrStorage);
SOCKET s = accept((SOCKET)*this, reinterpret_cast<sockaddr*>(&addrStorage), &addrLen);
if (s == INVALID_SOCKET) {
return {};
}
acceptedAddr = MakeAddress(addrStorage);
return TInet64StreamSocket(*this, s);
}
protected:
int AF = AF_UNSPEC;
void CreateSocket(int af) {
SOCKET s;
if (af == 0) {
s = socket(AF = AF_INET6, SOCK_STREAM, 0);
if (s < 0) {
s = socket(AF = AF_INET, SOCK_STREAM, 0);
}
} else {
s = socket(AF = af, SOCK_STREAM, 0);
}
if (AF == AF_INET6) {
SetSockOpt(s, SOL_SOCKET, IPV6_V6ONLY, (int)false);
}
TSocketHolder sock(s);
sock.Swap(*this);
}
};
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