Cryptocurrency with GOST R 34.11-2012 algo, GOST R 34.10-2012 signature
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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "irc.h"
#include "net.h"
#include "base58.h"
#include <boost/algorithm/string/predicate.hpp> // for startswith() and endswith()
#ifndef _WIN32
#include <sys/ioctl.h>
#endif
using namespace std;
using namespace boost;
int nGotIRCAddresses = 0;
#pragma pack(push, 1)
struct ircaddr
{
struct in_addr ip;
short port;
};
#pragma pack(pop)
string EncodeAddress(const CService& addr)
{
struct ircaddr tmp;
if (addr.GetInAddr(&tmp.ip))
{
tmp.port = htons(addr.GetPort());
vector<unsigned char> vch(UBEGIN(tmp), UEND(tmp));
return string("u") + EncodeBase58Check(vch);
}
return "";
}
bool DecodeAddress(string str, CService& addr)
{
vector<unsigned char> vch;
if (!DecodeBase58Check(str.substr(1), vch))
return false;
struct ircaddr tmp;
if (vch.size() != sizeof(tmp))
return false;
memcpy(&tmp, &vch[0], sizeof(tmp));
addr = CService(tmp.ip, ntohs(tmp.port));
return true;
}
static bool Send(SOCKET hSocket, const char* pszSend)
{
if (strstr(pszSend, "PONG") != pszSend)
printf("IRC SENDING: %s\n", pszSend);
const char* psz = pszSend;
const char* pszEnd = psz + strlen(psz);
while (psz < pszEnd)
{
boost::this_thread::interruption_point();
int ret = send(hSocket, psz, pszEnd - psz, MSG_NOSIGNAL);
if (ret < 0)
return false;
psz += ret;
}
return true;
}
int SocketCanRead(int fd)
{
#ifdef _WIN32
unsigned long opt;
if (ioctlsocket(fd, FIONREAD, &opt) < 0) { return 0; }
return opt;
#else
int opt;
if (ioctl(fd, FIONREAD, &opt) < 0) { return 0; }
return opt;
#endif
}
bool RecvLineFixed(SOCKET hSocket, string& strLine)
{
strLine = "";
loop
{
char c;
bool stop = false;
while(!stop)
{
boost::this_thread::interruption_point();
if (SocketCanRead(hSocket) >= 1) { stop = true; }
else { MilliSleep(10); }
}
int nBytes = recv(hSocket, &c, 1, 0);
if (nBytes > 0)
{
if (c == '\n')
continue;
if (c == '\r')
return true;
strLine += c;
if (strLine.size() >= 9000)
return true;
}
else if (nBytes <= 0)
{
boost::this_thread::interruption_point();
if (nBytes < 0)
{
int nErr = WSAGetLastError();
if (nErr == WSAEMSGSIZE)
continue;
if (nErr == WSAEWOULDBLOCK || nErr == WSAEINTR || nErr == WSAEINPROGRESS)
{
MilliSleep(10);
continue;
}
}
if (!strLine.empty())
return true;
if (nBytes == 0)
{
// socket closed
printf("socket closed\n");
return false;
}
else
{
// socket error
int nErr = WSAGetLastError();
printf("recv failed: %d\n", nErr);
return false;
}
}
}
}
bool RecvLineIRC(SOCKET hSocket, string& strLine)
{
loop
{
boost::this_thread::interruption_point();
bool fRet = RecvLineFixed(hSocket, strLine);
if (fRet)
{
boost::this_thread::interruption_point();
vector<string> vWords;
ParseString(strLine, ' ', vWords);
if (vWords.size() >= 1 && vWords[0] == "PING")
{
strLine[1] = 'O';
strLine += '\r';
Send(hSocket, strLine.c_str());
continue;
}
}
return fRet;
}
}
int RecvUntil(SOCKET hSocket, const char* psz1, const char* psz2=NULL, const char* psz3=NULL, const char* psz4=NULL)
{
loop
{
boost::this_thread::interruption_point();
string strLine;
strLine.reserve(10000);
if (!RecvLineIRC(hSocket, strLine))
return 0;
printf("IRC %s\n", strLine.c_str());
if (psz1 && strLine.find(psz1) != string::npos)
return 1;
if (psz2 && strLine.find(psz2) != string::npos)
return 2;
if (psz3 && strLine.find(psz3) != string::npos)
return 3;
if (psz4 && strLine.find(psz4) != string::npos)
return 4;
}
}
bool Wait(int nSeconds)
{
boost::this_thread::interruption_point();
printf("IRC waiting %d seconds to reconnect\n", nSeconds);
for (int i = 0; i < nSeconds; i++)
{
boost::this_thread::interruption_point();
MilliSleep(1000);
}
return true;
}
bool RecvCodeLine(SOCKET hSocket, const char* psz1, string& strRet)
{
strRet.clear();
loop
{
boost::this_thread::interruption_point();
string strLine;
if (!RecvLineIRC(hSocket, strLine))
return false;
vector<string> vWords;
ParseString(strLine, ' ', vWords);
if (vWords.size() < 2)
continue;
if (vWords[1] == psz1)
{
printf("IRC %s\n", strLine.c_str());
strRet = strLine;
return true;
}
}
}
bool GetIPFromIRC(SOCKET hSocket, string strMyName, CNetAddr& ipRet)
{
Send(hSocket, strprintf("USERHOST %s\r", strMyName.c_str()).c_str());
string strLine;
if (!RecvCodeLine(hSocket, "302", strLine))
return false;
vector<string> vWords;
ParseString(strLine, ' ', vWords);
if (vWords.size() < 4)
return false;
string str = vWords[3];
if (str.rfind("@") == string::npos)
return false;
string strHost = str.substr(str.rfind("@")+1);
// Hybrid IRC used by lfnet always returns IP when you userhost yourself,
// but in case another IRC is ever used this should work.
printf("GetIPFromIRC() got userhost %s\n", strHost.c_str());
CNetAddr addr(strHost, true);
if (!addr.IsValid())
return false;
ipRet = addr;
return true;
}
void ThreadIRCSeed()
{
// Don't connect to IRC if we won't use IPv4 connections.
if (IsLimited(NET_IPV4))
return;
// ... or if we won't make outbound connections and won't accept inbound ones.
if (mapArgs.count("-connect") && fNoListen)
return;
// ... or if IRC is not enabled.
if (!GetBoolArg("-irc", false))
return;
printf("ThreadIRCSeed trying to connect...\n");
int nErrorWait = 10;
int nRetryWait = 10;
int nNameRetry = 0;
while (true)
{
boost::this_thread::interruption_point();
CService addrConnect("92.243.23.21", 6667); // irc.lfnet.org
CService addrIRC("irc.lfnet.org", 6667, true);
if (addrIRC.IsValid())
addrConnect = addrIRC;
SOCKET hSocket;
if (!ConnectSocket(addrConnect, hSocket))
{
printf("IRC connect failed\n");
nErrorWait = nErrorWait * 11 / 10;
if (Wait(nErrorWait += 60))
continue;
else
return;
}
if (!RecvUntil(hSocket, "Found your hostname", "using your IP address instead", "Couldn't look up your hostname", "ignoring hostname"))
{
closesocket(hSocket);
hSocket = INVALID_SOCKET;
nErrorWait = nErrorWait * 11 / 10;
if (Wait(nErrorWait += 60))
continue;
else
return;
}
CNetAddr addrIPv4("1.2.3.4"); // arbitrary IPv4 address to make GetLocal prefer IPv4 addresses
CService addrLocal;
string strMyName;
// Don't use our IP as our nick if we're not listening
// or if it keeps failing because the nick is already in use.
if (!fNoListen && GetLocal(addrLocal, &addrIPv4) && nNameRetry<3)
strMyName = EncodeAddress(GetLocalAddress(&addrConnect));
if (strMyName == "")
strMyName = strprintf("x%"PRI64u"", GetRand(1000000000));
Send(hSocket, strprintf("NICK %s\r", strMyName.c_str()).c_str());
Send(hSocket, strprintf("USER %s 8 * : %s\r", strMyName.c_str(), strMyName.c_str()).c_str());
int nRet = RecvUntil(hSocket, " 004 ", " 433 ");
if (nRet != 1)
{
closesocket(hSocket);
hSocket = INVALID_SOCKET;
if (nRet == 2)
{
printf("IRC name already in use\n");
nNameRetry++;
Wait(10);
continue;
}
nErrorWait = nErrorWait * 11 / 10;
if (Wait(nErrorWait += 60))
continue;
else
return;
}
nNameRetry = 0;
MilliSleep(500);
// Get our external IP from the IRC server and re-nick before joining the channel
CNetAddr addrFromIRC;
if (GetIPFromIRC(hSocket, strMyName, addrFromIRC))
{
printf("GetIPFromIRC() returned %s\n", addrFromIRC.ToString().c_str());
// Don't use our IP as our nick if we're not listening
if (!fNoListen && addrFromIRC.IsRoutable())
{
// IRC lets you to re-nick
AddLocal(addrFromIRC, LOCAL_IRC);
strMyName = EncodeAddress(GetLocalAddress(&addrConnect));
Send(hSocket, strprintf("NICK %s\r", strMyName.c_str()).c_str());
}
}
if (fTestNet) {
Send(hSocket, "JOIN #anoncoinTEST3\r");
Send(hSocket, "WHO #anoncoinTEST3\r");
} else {
// randomly join #M3GAC01N00-#M3GAC01N99
int channel_number = GetRandInt(100);
channel_number = 0; // For now, just use one channel
Send(hSocket, strprintf("JOIN #anoncoin%02d\r", channel_number).c_str());
Send(hSocket, strprintf("WHO #anoncoin%02d\r", channel_number).c_str());
}
int64 nStart = GetTime();
string strLine;
strLine.reserve(10000);
while (RecvLineIRC(hSocket, strLine))
{
boost::this_thread::interruption_point();
if (strLine.empty() || strLine.size() > 900 || strLine[0] != ':')
continue;
vector<string> vWords;
ParseString(strLine, ' ', vWords);
if (vWords.size() < 2)
continue;
std::string strName;
if (vWords[1] == "352" && vWords.size() >= 8)
{
// index 7 is limited to 16 characters
// could get full length name at index 10, but would be different from join messages
strName = vWords[7].c_str();
printf("IRC got who\n");
}
if (vWords[1] == "JOIN" && vWords[0].size() > 1)
{
// :username!username@50000007.F000000B.90000002.IP JOIN :#channelname
strName = vWords[0].substr(1, vWords[0].find('!', 1) - 1);
printf("IRC got join\n");
}
if (boost::algorithm::starts_with(strName, "u"))
{
CAddress addr;
if (DecodeAddress(strName, addr))
{
addr.nTime = GetAdjustedTime();
if (addrman.Add(addr, addrConnect, 51 * 60))
printf("IRC got new address: %s\n", addr.ToString().c_str());
nGotIRCAddresses++;
}
else
{
printf("IRC decode failed\n");
}
}
}
closesocket(hSocket);
hSocket = INVALID_SOCKET;
if (GetTime() - nStart > 20 * 60)
{
nErrorWait /= 3;
nRetryWait /= 3;
}
nRetryWait = nRetryWait * 11 / 10;
if (!Wait(nRetryWait += 60))
return;
}
}
#ifdef TEST
int main(int argc, char *argv[])
{
WSADATA wsadata;
if (WSAStartup(MAKEWORD(2,2), &wsadata) != NO_ERROR)
{
printf("Error at WSAStartup()\n");
return false;
}
ThreadIRCSeed(NULL);
WSACleanup();
return 0;
}
#endif