src/nntp/nntplistener.cpp

   1 #include "../../include/nntp/nntplistener.h"\r
   2 #include "../../include/nntp/nntpconnection.h"\r
   3 #include "../../include/option.h"\r
   4 #include "../../include/logfile.h"\r
   5 #include "../../include/global.h"\r
   6 #include "../../include/stringfunctions.h"\r
   7 \r
   8 #ifdef _WIN32\r
   9         #include <winsock2.h>\r
  10         #include <ws2tcpip.h>\r
  11 #else\r
  12         #include <netinet/in.h>  // gcc - IPPROTO_ consts\r
  13         #include <netdb.h>       // gcc - addrinfo\r
  14 #endif\r
  15 \r
  16 #ifdef XMEM\r
  17         #include <xmem.h>\r
  18 #endif\r
  19 \r
  20 NNTPListener::NNTPListener()\r
  21 {\r
  22 \r
  23 }\r
  24 \r
  25 NNTPListener::~NNTPListener()\r
  26 {\r
  27 \r
  28 }\r
  29 \r
  30 void NNTPListener::run()\r
  31 {\r
  32         int rval;\r
  33         fd_set readfs;\r
  34         struct timeval tv;\r
  35         std::vector<SOCKET>::iterator listeni;\r
  36         SOCKET highsocket;\r
  37 \r
  38         StartListen();\r
  39 \r
  40         do\r
  41         {\r
  42                 // reset values\r
  43                 highsocket=0;\r
  44                 tv.tv_sec=1;\r
  45                 tv.tv_usec=0;\r
  46 \r
  47                 // clear fd set\r
  48                 FD_ZERO(&readfs);\r
  49 \r
  50                 // put all listen sockets on the fd set\r
  51                 for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
  52                 {\r
  53                         FD_SET((*listeni),&readfs);\r
  54                         if((*listeni)>highsocket)\r
  55                         {\r
  56                                 highsocket=(*listeni);\r
  57                         }\r
  58                 }\r
  59 \r
  60                 // see if any connections are waiting\r
  61                 rval=select(highsocket+1,&readfs,0,0,&tv);\r
  62 \r
  63                 // check for new connections\r
  64                 if(rval>0)\r
  65                 {\r
  66                         for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
  67                         {\r
  68                                 if(FD_ISSET((*listeni),&readfs))\r
  69                                 {\r
  70                                         SOCKET newsock;\r
  71                                         struct sockaddr_storage addr;\r
  72                                         int addrlen=sizeof(addr);\r
  73                                         newsock=accept((*listeni),(struct sockaddr *)&addr,&addrlen);\r
  74                                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_INFO,"NNTPListener::run NNTP client connected");\r
  75                                         m_connections.execute(new NNTPConnection(newsock));\r
  76                                 }\r
  77                         }\r
  78                 }\r
  79 \r
  80         }while(!ZThread::Thread::interrupted() && m_listensockets.size()>0);\r
  81 \r
  82         // see if any threads are still running - just calling interrupt without check would cause assert in debug mode\r
  83         if(m_connections.wait(1)==false)\r
  84         {\r
  85                 LogFile::instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::run interrupting connection threads and waiting 60 seconds for exit.");\r
  86                 try\r
  87                 {\r
  88                         m_connections.interrupt();\r
  89                 }\r
  90                 catch(...)\r
  91                 {\r
  92                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::run caught unhandled exception.");\r
  93                 }\r
  94                 if(m_connections.wait(60)==false)\r
  95                 {\r
  96                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::run connection threads did not exit after 60 seconds.");\r
  97                 }\r
  98         }\r
  99 \r
 100         for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
 101         {\r
 102                 #ifdef _WIN32\r
 103                 closesocket((*listeni));\r
 104                 #else\r
 105                 close((*listeni));\r
 106                 #endif\r
 107         }\r
 108         m_listensockets.clear();\r
 109 \r
 110 }\r
 111 \r
 112 void NNTPListener::StartListen()\r
 113 {\r
 114         \r
 115         std::string bindaddresses;\r
 116         std::vector<std::string> listenaddresses;\r
 117         std::string nntpport;\r
 118         if(Option::instance()->Get("NNTPListenPort",nntpport)==false)\r
 119         {\r
 120                 nntpport="1119";\r
 121                 Option::instance()->Set("NNTPListenPort",nntpport);\r
 122         }\r
 123         if(Option::instance()->Get("NNTPBindAddresses",bindaddresses)==false)\r
 124         {\r
 125                 bindaddresses="127.0.0.1";\r
 126                 Option::instance()->Set("NNTPBindAddresses",bindaddresses);\r
 127         }\r
 128         StringFunctions::Split(bindaddresses,",",listenaddresses);\r
 129         \r
 130         for(std::vector<std::string>::iterator i=listenaddresses.begin(); i!=listenaddresses.end(); i++)\r
 131         {\r
 132                 SOCKET sock;\r
 133                 int rval;\r
 134                 struct addrinfo hint,*result,*current;\r
 135                 result=current=NULL;\r
 136                 memset(&hint,0,sizeof(hint));\r
 137                 hint.ai_socktype=SOCK_STREAM;\r
 138                 hint.ai_protocol=IPPROTO_TCP;\r
 139                 hint.ai_flags=AI_PASSIVE;\r
 140                 \r
 141                 rval=getaddrinfo((*i).c_str(),nntpport.c_str(),&hint,&result);\r
 142                 if(rval==0)\r
 143                 {\r
 144                         for(current=result; current!=NULL; current=current->ai_next)\r
 145                         {\r
 146                                 sock=socket(current->ai_family,current->ai_socktype,current->ai_protocol);\r
 147                                 if(sock!=INVALID_SOCKET)\r
 148                                 {\r
 149                                         if(bind(sock,current->ai_addr,current->ai_addrlen)==0)\r
 150                                         {\r
 151                                                 if(listen(sock,10)==0)\r
 152                                                 {\r
 153                                                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_INFO,"NNTPListener::StartListen started listening at "+(*i)+":"+nntpport);\r
 154                                                         m_listensockets.push_back(sock);\r
 155                                                 }\r
 156                                                 else\r
 157                                                 {\r
 158                                                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_ERROR,"NNTPListener::StartListen socket listen failed");\r
 159                                                         #ifdef _WIN32\r
 160                                                         closesocket(sock);\r
 161                                                         #else\r
 162                                                         close(sock);\r
 163                                                         #endif\r
 164                                                 }\r
 165                                         }\r
 166                                         else\r
 167                                         {\r
 168                                                 LogFile::instance()->WriteLog(LogFile::LOGLEVEL_ERROR,"NNTPListener::StartListen socket bind failed");\r
 169                                                 #ifdef _WIN32\r
 170                                                 closesocket(sock);\r
 171                                                 #else\r
 172                                                 close(sock);\r
 173                                                 #endif\r
 174                                         }\r
 175                                 }\r
 176                                 else\r
 177                                 {\r
 178                                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_ERROR,"NNTPListener::StartListen couldn't create socket");\r
 179                                 }\r
 180                         }\r
 181                 }\r
 182                 if(result)\r
 183                 {\r
 184                         freeaddrinfo(result);\r
 185                 }\r
 186         }\r
 187         if(m_listensockets.size()==0)\r
 188         {\r
 189                 LogFile::instance()->WriteLog(LogFile::LOGLEVEL_FATAL,"NNTPListener::StartListen couldn't start listening on any sockets");\r
 190         }\r
 191 }\r