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/global.h"\r
   5 #include "../../include/stringfunctions.h"\r
   6 \r
   7 #include <Poco/Net/SocketAddress.h>\r
   8 \r
   9 #include <cstring>\r
  10 \r
  11 #ifdef _WIN32\r
  12         #include <winsock2.h>\r
  13         #include <ws2tcpip.h>\r
  14 #else\r
  15         #include <netinet/in.h>  // gcc - IPPROTO_ consts\r
  16         #include <netdb.h>       // gcc - addrinfo\r
  17 #endif\r
  18 \r
  19 #ifdef XMEM\r
  20         #include <xmem.h>\r
  21 #endif\r
  22 \r
  23 NNTPListener::NNTPListener()\r
  24 {\r
  25 \r
  26 }\r
  27 \r
  28 NNTPListener::~NNTPListener()\r
  29 {\r
  30 \r
  31 }\r
  32 \r
  33 void NNTPListener::run()\r
  34 {\r
  35         int rval;\r
  36         fd_set readfs;\r
  37         struct timeval tv;\r
  38         std::vector<SOCKET>::iterator listeni;\r
  39         SOCKET highsocket;\r
  40 \r
  41         m_log->debug("NNTPListener::run thread started.");\r
  42 \r
  43         StartListen();\r
  44 \r
  45         do\r
  46         {\r
  47                 // reset values\r
  48                 highsocket=0;\r
  49                 tv.tv_sec=1;\r
  50                 tv.tv_usec=0;\r
  51 \r
  52                 // clear fd set\r
  53                 FD_ZERO(&readfs);\r
  54 \r
  55                 // put all listen sockets on the fd set\r
  56                 for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
  57                 {\r
  58                         FD_SET((*listeni),&readfs);\r
  59                         if((*listeni)>highsocket)\r
  60                         {\r
  61                                 highsocket=(*listeni);\r
  62                         }\r
  63                 }\r
  64 \r
  65                 // see if any connections are waiting\r
  66                 rval=select(highsocket+1,&readfs,0,0,&tv);\r
  67 \r
  68                 // check for new connections\r
  69                 if(rval>0)\r
  70                 {\r
  71                         for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
  72                         {\r
  73                                 if(FD_ISSET((*listeni),&readfs))\r
  74                                 {\r
  75                                         SOCKET newsock;\r
  76                                         struct sockaddr_storage addr;\r
  77                                         socklen_t addrlen=sizeof(addr);\r
  78                                         newsock=accept((*listeni),(struct sockaddr *)&addr,&addrlen);\r
  79                                         m_log->information("NNTPListener::run NNTP client connected");\r
  80                                         m_connections.Start(new NNTPConnection(newsock));\r
  81                                 }\r
  82                         }\r
  83                 }\r
  84 \r
  85         }while(!IsCancelled() && m_listensockets.size()>0);\r
  86 \r
  87         m_connections.Cancel();\r
  88         m_connections.Join();\r
  89 \r
  90         for(listeni=m_listensockets.begin(); listeni!=m_listensockets.end(); listeni++)\r
  91         {\r
  92                 #ifdef _WIN32\r
  93                 closesocket((*listeni));\r
  94                 #else\r
  95                 close((*listeni));\r
  96                 #endif\r
  97         }\r
  98         m_listensockets.clear();\r
  99 \r
 100         m_log->debug("NNTPListener::run thread exiting.");\r
 101 \r
 102 }\r
 103 \r
 104 void NNTPListener::StartListen()\r
 105 {\r
 106         \r
 107         std::string bindaddresses;\r
 108         std::vector<std::string> listenaddresses;\r
 109         std::string nntpport;\r
 110         if(Option::Instance()->Get("NNTPListenPort",nntpport)==false)\r
 111         {\r
 112                 nntpport="1119";\r
 113                 Option::Instance()->Set("NNTPListenPort",nntpport);\r
 114         }\r
 115         if(Option::Instance()->Get("NNTPBindAddresses",bindaddresses)==false)\r
 116         {\r
 117                 bindaddresses="127.0.0.1";\r
 118                 Option::Instance()->Set("NNTPBindAddresses",bindaddresses);\r
 119         }\r
 120         StringFunctions::Split(bindaddresses,",",listenaddresses);\r
 121         \r
 122         for(std::vector<std::string>::iterator i=listenaddresses.begin(); i!=listenaddresses.end(); i++)\r
 123         {\r
 124                 SOCKET sock;\r
 125                 int rval;\r
 126                 struct addrinfo hint,*result,*current;\r
 127                 result=current=NULL;\r
 128                 memset(&hint,0,sizeof(hint));\r
 129                 hint.ai_socktype=SOCK_STREAM;\r
 130                 hint.ai_protocol=IPPROTO_TCP;\r
 131                 hint.ai_flags=AI_PASSIVE;\r
 132 \r
 133                 m_log->trace("NNTPListener::StartListen getting address info for "+(*i));\r
 134                 \r
 135                 rval=getaddrinfo((*i).c_str(),nntpport.c_str(),&hint,&result);\r
 136                 if(rval==0)\r
 137                 {\r
 138                         for(current=result; current!=NULL; current=current->ai_next)\r
 139                         {\r
 140                                 try\r
 141                                 {\r
 142                                         Poco::Net::SocketAddress sa(current->ai_addr,current->ai_addrlen);\r
 143 \r
 144                                         m_log->debug("NNTPListener::StartListen trying to create socket, bind, and listen on "+sa.toString());\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                                                 #ifndef _WIN32\r
 150                                                 const char optval='1';\r
 151                                                 setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,&optval,sizeof(optval));\r
 152                                                 #endif\r
 153                                                 if(bind(sock,current->ai_addr,current->ai_addrlen)==0)\r
 154                                                 {\r
 155                                                         if(listen(sock,10)==0)\r
 156                                                         {\r
 157                                                                 m_log->information("NNTPListener::StartListen started listening on "+sa.toString());\r
 158                                                                 m_listensockets.push_back(sock);\r
 159                                                         }\r
 160                                                         else\r
 161                                                         {\r
 162                                                                 m_log->error("NNTPListener::StartListen socket listen failed on "+sa.toString());\r
 163                                                                 #ifdef _WIN32\r
 164                                                                 closesocket(sock);\r
 165                                                                 #else\r
 166                                                                 close(sock);\r
 167                                                                 #endif\r
 168                                                         }\r
 169                                                 }\r
 170                                                 else\r
 171                                                 {\r
 172                                                         m_log->error("NNTPListener::StartListen socket bind failed on "+sa.toString());\r
 173                                                         #ifdef _WIN32\r
 174                                                         closesocket(sock);\r
 175                                                         #else\r
 176                                                         close(sock);\r
 177                                                         #endif\r
 178                                                 }\r
 179                                         }\r
 180                                         else\r
 181                                         {\r
 182                                                 m_log->error("NNTPListener::StartListen couldn't create socket on "+sa.toString());\r
 183                                         }\r
 184                                 }\r
 185                                 catch(Poco::Exception &e)\r
 186                                 {\r
 187                                         m_log->error("NNTPListener::StartListen caught "+e.displayText());\r
 188                                         continue;\r
 189                                 }\r
 190                                 catch(...)\r
 191                                 {\r
 192                                         m_log->error("NNTPListener::StartListen caught unknown exception");\r
 193                                         continue;\r
 194                                 }\r
 195                         }\r
 196                 }\r
 197                 if(result)\r
 198                 {\r
 199                         freeaddrinfo(result);\r
 200                 }\r
 201         }\r
 202         if(m_listensockets.size()==0)\r
 203         {\r
 204                 m_log->fatal("NNTPListener::StartListen couldn't start listening on any interfaces");\r
 205         }\r
 206 }\r