src/modules/m_conn_waitpong.cpp

   1 #include <stdlib.h>
   2 #include <string>
   3 #include "aes.h"
   4 #include "users.h"
   5 #include "channels.h"
   6 #include "modules.h"
   7 #include "helperfuncs.h"
   8
   9 /* $ModDesc: Forces connecting clients to send a PONG message back to the server before they can complete their connection */
  10
  11 static std::string RandString(unsigned int length)
  12 {
  13         unsigned char* tmp = new unsigned char[(length/4)*3];
  14
  15         for(unsigned int i = 0; i < (length/4)*3; i++)
  16                 tmp[i] = (unsigned char)rand();
  17
  18         unsigned char* out = new unsigned char[length];
  19
  20         to64frombits(out, tmp, (length/4)*3);
  21
  22         std::string ret((char*)out);
  23
  24         delete out;
  25         delete tmp;
  26
  27         return ret;
  28 }
  29
  30 class ModuleWaitPong : public Module
  31 {
  32         Server* Srv;
  33         ConfigReader* Conf;
  34
  35         bool sendsnotice;
  36         bool killonbadreply;
  37
  38  public:
  39         ModuleWaitPong(Server* Me)
  40                 : Module::Module(Me)
  41         {
  42                 Srv = Me;
  43                 OnRehash("");
  44         }
  45
  46         virtual void OnRehash(std::string param)
  47         {
  48                 Conf = new ConfigReader;
  49
  50                 sendsnotice = Conf->ReadFlag("waitpong", "sendsnotice", 0);
  51
  52                 if(Conf->GetError() == CONF_VALUE_NOT_FOUND)
  53                         sendsnotice = true;
  54
  55                 killonbadreply = Conf->ReadFlag("waitpong", "killonbadreply", 0);
  56
  57                 if(Conf->GetError() == CONF_VALUE_NOT_FOUND)
  58                         killonbadreply = true;
  59
  60                 delete Conf;
  61         }
  62
  63         void Implements(char* List)
  64         {
  65                 List[I_OnUserRegister] = List[I_OnCheckReady] = List[I_OnUserDisconnect] = List[I_OnPreCommand] = List[I_OnRehash] = 1;
  66         }
  67
  68         virtual void OnUserRegister(userrec* user)
  69         {
  70                 std::string* pingrpl = new std::string;
  71                 *pingrpl = RandString(10);
  72
  73                 Srv->Send(user->fd, "PING :" + *pingrpl);
  74
  75                 if(sendsnotice)
  76                         WriteServ(user->fd, "NOTICE %s :*** If you are having problems connecting due to ping timeouts, please type /quote PONG %s or /raw PONG %s now.", user->nick, pingrpl->c_str(), pingrpl->c_str());
  77
  78                 user->Extend("waitpong_pingstr", (char*)pingrpl);
  79         }
  80
  81         virtual int OnPreCommand(std::string command, char** parameters, int pcnt,      userrec* user,  bool validated)
  82         {
  83                 if(command == "PONG")
  84                 {
  85                         std::string* pingrpl = (std::string*)user->GetExt("waitpong_pingstr");
  86
  87                         if(pingrpl && (*pingrpl == parameters[0]))
  88                         {
  89                                 delete pingrpl;
  90                                 user->Shrink("waitpong_pingstr");
  91                                 return 1;
  92                         }
  93                         else if(killonbadreply)
  94                         {
  95                                 Srv->QuitUser(user, "Incorrect ping reply for registration");
  96                         }
  97                 }
  98
  99                 return 0;
 100         }
 101
 102         virtual bool OnCheckReady(userrec* user)
 103         {
 104                 return (!user->GetExt("waitpong_pingstr"));
 105         }
 106
 107         virtual ~ModuleWaitPong()
 108         {
 109         }
 110
 111         virtual Version GetVersion()
 112         {
 113                 return Version(1, 0, 0, 0, VF_VENDOR);
 114         }
 115
 116 };
 117
 118 class ModuleWaitPongFactory : public ModuleFactory
 119 {
 120  public:
 121         ModuleWaitPongFactory()
 122         {
 123         }
 124
 125         ~ModuleWaitPongFactory()
 126         {
 127         }
 128
 129         virtual Module * CreateModule(Server* Me)
 130         {
 131                 return new ModuleWaitPong(Me);
 132         }
 133 };
 134
 135
 136 extern "C" void * init_module( void )
 137 {
 138         return new ModuleWaitPongFactory;
 139 }