1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2012 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
12 using namespace boost;
14 int nGotIRCAddresses = 0;
15 bool fGotExternalIP = false;
17 void ThreadIRCSeed2(void* parg);
30 string EncodeAddress(const CService& addr)
33 if (addr.GetInAddr(&tmp.ip))
35 tmp.port = htons(addr.GetPort());
37 vector<unsigned char> vch(UBEGIN(tmp), UEND(tmp));
38 return string("u") + EncodeBase58Check(vch);
43 bool DecodeAddress(string str, CService& addr)
45 vector<unsigned char> vch;
46 if (!DecodeBase58Check(str.substr(1), vch))
50 if (vch.size() != sizeof(tmp))
52 memcpy(&tmp, &vch[0], sizeof(tmp));
54 addr = CService(tmp.ip, ntohs(tmp.port));
63 static bool Send(SOCKET hSocket, const char* pszSend)
65 if (strstr(pszSend, "PONG") != pszSend)
66 printf("IRC SENDING: %s\n", pszSend);
67 const char* psz = pszSend;
68 const char* pszEnd = psz + strlen(psz);
71 int ret = send(hSocket, psz, pszEnd - psz, MSG_NOSIGNAL);
79 bool RecvLineIRC(SOCKET hSocket, string& strLine)
83 bool fRet = RecvLine(hSocket, strLine);
88 vector<string> vWords;
89 ParseString(strLine, ' ', vWords);
90 if (vWords.size() >= 1 && vWords[0] == "PING")
94 Send(hSocket, strLine.c_str());
102 int RecvUntil(SOCKET hSocket, const char* psz1, const char* psz2=NULL, const char* psz3=NULL, const char* psz4=NULL)
107 strLine.reserve(10000);
108 if (!RecvLineIRC(hSocket, strLine))
110 printf("IRC %s\n", strLine.c_str());
111 if (psz1 && strLine.find(psz1) != string::npos)
113 if (psz2 && strLine.find(psz2) != string::npos)
115 if (psz3 && strLine.find(psz3) != string::npos)
117 if (psz4 && strLine.find(psz4) != string::npos)
122 bool Wait(int nSeconds)
126 printf("IRC waiting %d seconds to reconnect\n", nSeconds);
127 for (int i = 0; i < nSeconds; i++)
136 bool RecvCodeLine(SOCKET hSocket, const char* psz1, string& strRet)
142 if (!RecvLineIRC(hSocket, strLine))
145 vector<string> vWords;
146 ParseString(strLine, ' ', vWords);
147 if (vWords.size() < 2)
150 if (vWords[1] == psz1)
152 printf("IRC %s\n", strLine.c_str());
159 bool GetIPFromIRC(SOCKET hSocket, string strMyName, CNetAddr& ipRet)
161 Send(hSocket, strprintf("USERHOST %s\r", strMyName.c_str()).c_str());
164 if (!RecvCodeLine(hSocket, "302", strLine))
167 vector<string> vWords;
168 ParseString(strLine, ' ', vWords);
169 if (vWords.size() < 4)
172 string str = vWords[3];
173 if (str.rfind("@") == string::npos)
175 string strHost = str.substr(str.rfind("@")+1);
177 // Hybrid IRC used by lfnet always returns IP when you userhost yourself,
178 // but in case another IRC is ever used this should work.
179 printf("GetIPFromIRC() got userhost %s\n", strHost.c_str());
182 CNetAddr addr(strHost, true);
192 void ThreadIRCSeed(void* parg)
194 IMPLEMENT_RANDOMIZE_STACK(ThreadIRCSeed(parg));
197 ThreadIRCSeed2(parg);
199 catch (std::exception& e) {
200 PrintExceptionContinue(&e, "ThreadIRCSeed()");
202 PrintExceptionContinue(NULL, "ThreadIRCSeed()");
204 printf("ThreadIRCSeed exiting\n");
207 void ThreadIRCSeed2(void* parg)
209 /* Dont advertise on IRC if we don't allow incoming connections */
210 if (mapArgs.count("-connect") || fNoListen)
213 if (!GetBoolArg("-irc", false))
216 printf("ThreadIRCSeed started\n");
219 bool fNameInUse = false;
223 CService addrConnect("92.243.23.21", 6667); // irc.lfnet.org
225 CService addrIRC("irc.lfnet.org", 6667, true);
226 if (addrIRC.IsValid())
227 addrConnect = addrIRC;
230 if (!ConnectSocket(addrConnect, hSocket))
232 printf("IRC connect failed\n");
233 nErrorWait = nErrorWait * 11 / 10;
234 if (Wait(nErrorWait += 60))
240 if (!RecvUntil(hSocket, "Found your hostname", "using your IP address instead", "Couldn't look up your hostname", "ignoring hostname"))
242 closesocket(hSocket);
243 hSocket = INVALID_SOCKET;
244 nErrorWait = nErrorWait * 11 / 10;
245 if (Wait(nErrorWait += 60))
252 if (addrLocalHost.IsRoutable() && !fUseProxy && !fNameInUse)
253 strMyName = EncodeAddress(addrLocalHost);
255 strMyName = strprintf("x%u", GetRand(1000000000));
257 Send(hSocket, strprintf("NICK %s\r", strMyName.c_str()).c_str());
258 Send(hSocket, strprintf("USER %s 8 * : %s\r", strMyName.c_str(), strMyName.c_str()).c_str());
260 int nRet = RecvUntil(hSocket, " 004 ", " 433 ");
263 closesocket(hSocket);
264 hSocket = INVALID_SOCKET;
267 printf("IRC name already in use\n");
272 nErrorWait = nErrorWait * 11 / 10;
273 if (Wait(nErrorWait += 60))
280 // Get our external IP from the IRC server and re-nick before joining the channel
281 CNetAddr addrFromIRC;
282 if (GetIPFromIRC(hSocket, strMyName, addrFromIRC))
284 printf("GetIPFromIRC() returned %s\n", addrFromIRC.ToString().c_str());
285 if (!fUseProxy && addrFromIRC.IsRoutable())
287 // IRC lets you to re-nick
288 fGotExternalIP = true;
289 addrLocalHost.SetIP(addrFromIRC);
290 strMyName = EncodeAddress(addrLocalHost);
291 Send(hSocket, strprintf("NICK %s\r", strMyName.c_str()).c_str());
296 Send(hSocket, "JOIN #bitcoinTEST\r");
297 Send(hSocket, "WHO #bitcoinTEST\r");
299 // randomly join #bitcoin00-#bitcoin99
300 int channel_number = GetRandInt(100);
301 Send(hSocket, strprintf("JOIN #bitcoin%02d\r", channel_number).c_str());
302 Send(hSocket, strprintf("WHO #bitcoin%02d\r", channel_number).c_str());
305 int64 nStart = GetTime();
307 strLine.reserve(10000);
308 while (!fShutdown && RecvLineIRC(hSocket, strLine))
310 if (strLine.empty() || strLine.size() > 900 || strLine[0] != ':')
313 vector<string> vWords;
314 ParseString(strLine, ' ', vWords);
315 if (vWords.size() < 2)
321 if (vWords[1] == "352" && vWords.size() >= 8)
323 // index 7 is limited to 16 characters
324 // could get full length name at index 10, but would be different from join messages
325 strlcpy(pszName, vWords[7].c_str(), sizeof(pszName));
326 printf("IRC got who\n");
329 if (vWords[1] == "JOIN" && vWords[0].size() > 1)
331 // :username!username@50000007.F000000B.90000002.IP JOIN :#channelname
332 strlcpy(pszName, vWords[0].c_str() + 1, sizeof(pszName));
333 if (strchr(pszName, '!'))
334 *strchr(pszName, '!') = '\0';
335 printf("IRC got join\n");
338 if (pszName[0] == 'u')
341 if (DecodeAddress(pszName, addr))
343 addr.nTime = GetAdjustedTime();
344 if (addrman.Add(addr, addrConnect, 51 * 60))
345 printf("IRC got new address: %s\n", addr.ToString().c_str());
350 printf("IRC decode failed\n");
354 closesocket(hSocket);
355 hSocket = INVALID_SOCKET;
357 if (GetTime() - nStart > 20 * 60)
363 nRetryWait = nRetryWait * 11 / 10;
364 if (!Wait(nRetryWait += 60))
379 int main(int argc, char *argv[])
382 if (WSAStartup(MAKEWORD(2,2), &wsadata) != NO_ERROR)
384 printf("Error at WSAStartup()\n");