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_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                                 return 1;
  97                         }
  98                 }
  99
 100                 return 0;
 101         }
 102
 103         virtual bool OnCheckReady(userrec* user)
 104         {
 105                 return (!user->GetExt("waitpong_pingstr"));
 106         }
 107
 108         virtual ~ModuleWaitPong()
 109         {
 110         }
 111
 112         virtual Version GetVersion()
 113         {
 114                 return Version(1, 0, 0, 0, VF_VENDOR);
 115         }
 116
 117 };
 118
 119 class ModuleWaitPongFactory : public ModuleFactory
 120 {
 121  public:
 122         ModuleWaitPongFactory()
 123         {
 124         }
 125
 126         ~ModuleWaitPongFactory()
 127         {
 128         }
 129
 130         virtual Module * CreateModule(Server* Me)
 131         {
 132                 return new ModuleWaitPong(Me);
 133         }
 134 };
 135
 136
 137 extern "C" void * init_module( void )
 138 {
 139         return new ModuleWaitPongFactory;
 140 }