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         LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::run thread started.");\r
  39 \r
  40         StartListen();\r
  41 \r
  42         do\r
  43         {\r
  44                 // reset values\r
  45                 highsocket=0;\r
  46                 tv.tv_sec=1;\r
  47                 tv.tv_usec=0;\r
  48 \r
  49                 // clear fd set\r
  50                 FD_ZERO(&readfs);\r
  51 \r
  52                 // put all listen sockets on the fd set\r
  53                 for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
  54                 {\r
  55                         FD_SET((*listeni),&readfs);\r
  56                         if((*listeni)>highsocket)\r
  57                         {\r
  58                                 highsocket=(*listeni);\r
  59                         }\r
  60                 }\r
  61 \r
  62                 // see if any connections are waiting\r
  63                 rval=select(highsocket+1,&readfs,0,0,&tv);\r
  64 \r
  65                 // check for new connections\r
  66                 if(rval>0)\r
  67                 {\r
  68                         for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
  69                         {\r
  70                                 if(FD_ISSET((*listeni),&readfs))\r
  71                                 {\r
  72                                         SOCKET newsock;\r
  73                                         struct sockaddr_storage addr;\r
  74                                         socklen_t addrlen=sizeof(addr);\r
  75                                         newsock=accept((*listeni),(struct sockaddr *)&addr,&addrlen);\r
  76                                         LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_INFO,"NNTPListener::run NNTP client connected");\r
  77                                         //m_connections.execute(new NNTPConnection(newsock));\r
  78                                         m_connectionthreads.push_back(new PThread::Thread(new NNTPConnection(newsock)));\r
  79                                 }\r
  80                         }\r
  81                 }\r
  82 \r
  83                 // check for any non-running connection threads that we can delete\r
  84                 for(std::vector<PThread::Thread *>::iterator i=m_connectionthreads.begin(); i!=m_connectionthreads.end(); )\r
  85                 {\r
  86                         if((*i)->IsRunning()==false)\r
  87                         {\r
  88                                 delete (*i);\r
  89                                 i=m_connectionthreads.erase(i);\r
  90                         }\r
  91                         if(i!=m_connectionthreads.end())\r
  92                         {\r
  93                                 i++;\r
  94                         }\r
  95                 }\r
  96 \r
  97         //}while(!ZThread::Thread::interrupted() && m_listensockets.size()>0);\r
  98         }while(!IsCancelled() && m_listensockets.size()>0);\r
  99 \r
 100         // see if any threads are still running - just calling interrupt without check would cause assert in debug mode\r
 101         /*\r
 102         if(m_connections.wait(1)==false)\r
 103         {\r
 104                 LogFile::instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::run interrupting connection threads and waiting 60 seconds for exit.");\r
 105                 try\r
 106                 {\r
 107                         m_connections.interrupt();\r
 108                 }\r
 109                 catch(...)\r
 110                 {\r
 111                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::run caught unhandled exception.");\r
 112                 }\r
 113                 if(m_connections.wait(60000)==false)\r
 114                 {\r
 115                         LogFile::instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::run connection threads did not exit after 60 seconds.");\r
 116                 }\r
 117         }\r
 118         */\r
 119         for(std::vector<PThread::Thread *>::iterator i=m_connectionthreads.begin(); i!=m_connectionthreads.end(); i++)\r
 120         {\r
 121                 if((*i)->IsRunning())\r
 122                 {\r
 123                         LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_DEBUG,"NNTPListener::Run waiting for connection thread to exit.");\r
 124                         (*i)->Cancel();\r
 125                         (*i)->Join();\r
 126                 }\r
 127                 delete (*i);\r
 128         }\r
 129 \r
 130         for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
 131         {\r
 132                 #ifdef _WIN32\r
 133                 closesocket((*listeni));\r
 134                 #else\r
 135                 close((*listeni));\r
 136                 #endif\r
 137         }\r
 138         m_listensockets.clear();\r
 139 \r
 140 }\r
 141 \r
 142 void NNTPListener::StartListen()\r
 143 {\r
 144         \r
 145         std::string bindaddresses;\r
 146         std::vector<std::string> listenaddresses;\r
 147         std::string nntpport;\r
 148         if(Option::Instance()->Get("NNTPListenPort",nntpport)==false)\r
 149         {\r
 150                 nntpport="1119";\r
 151                 Option::Instance()->Set("NNTPListenPort",nntpport);\r
 152         }\r
 153         if(Option::Instance()->Get("NNTPBindAddresses",bindaddresses)==false)\r
 154         {\r
 155                 bindaddresses="127.0.0.1";\r
 156                 Option::Instance()->Set("NNTPBindAddresses",bindaddresses);\r
 157         }\r
 158         StringFunctions::Split(bindaddresses,",",listenaddresses);\r
 159         \r
 160         for(std::vector<std::string>::iterator i=listenaddresses.begin(); i!=listenaddresses.end(); i++)\r
 161         {\r
 162                 SOCKET sock;\r
 163                 int rval;\r
 164                 struct addrinfo hint,*result,*current;\r
 165                 result=current=NULL;\r
 166                 memset(&hint,0,sizeof(hint));\r
 167                 hint.ai_socktype=SOCK_STREAM;\r
 168                 hint.ai_protocol=IPPROTO_TCP;\r
 169                 hint.ai_flags=AI_PASSIVE;\r
 170                 \r
 171                 rval=getaddrinfo((*i).c_str(),nntpport.c_str(),&hint,&result);\r
 172                 if(rval==0)\r
 173                 {\r
 174                         for(current=result; current!=NULL; current=current->ai_next)\r
 175                         {\r
 176                                 sock=socket(current->ai_family,current->ai_socktype,current->ai_protocol);\r
 177                                 if(sock!=INVALID_SOCKET)\r
 178                                 {\r
 179                                         if(bind(sock,current->ai_addr,current->ai_addrlen)==0)\r
 180                                         {\r
 181                                                 if(listen(sock,10)==0)\r
 182                                                 {\r
 183                                                         LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_INFO,"NNTPListener::StartListen started listening at "+(*i)+":"+nntpport);\r
 184                                                         m_listensockets.push_back(sock);\r
 185                                                 }\r
 186                                                 else\r
 187                                                 {\r
 188                                                         LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_ERROR,"NNTPListener::StartListen socket listen failed");\r
 189                                                         #ifdef _WIN32\r
 190                                                         closesocket(sock);\r
 191                                                         #else\r
 192                                                         close(sock);\r
 193                                                         #endif\r
 194                                                 }\r
 195                                         }\r
 196                                         else\r
 197                                         {\r
 198                                                 LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_ERROR,"NNTPListener::StartListen socket bind failed");\r
 199                                                 #ifdef _WIN32\r
 200                                                 closesocket(sock);\r
 201                                                 #else\r
 202                                                 close(sock);\r
 203                                                 #endif\r
 204                                         }\r
 205                                 }\r
 206                                 else\r
 207                                 {\r
 208                                         LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_ERROR,"NNTPListener::StartListen couldn't create socket");\r
 209                                 }\r
 210                         }\r
 211                 }\r
 212                 if(result)\r
 213                 {\r
 214                         freeaddrinfo(result);\r
 215                 }\r
 216         }\r
 217         if(m_listensockets.size()==0)\r
 218         {\r
 219                 LogFile::Instance()->WriteLog(LogFile::LOGLEVEL_FATAL,"NNTPListener::StartListen couldn't start listening on any sockets");\r
 220         }\r
 221 }\r