src/modules/m_kicknorejoin.cpp

   1 #include <time.h>
   2 #include <map>
   3 #include <vector>
   4 #include <sstream>
   5 #include "users.h"
   6 #include "channels.h"
   7 #include "modules.h"
   8 #include "helperfuncs.h"
   9 #include "inspircd.h"
  10
  11 /* $ModDesc: Provides channel mode +J (delay rejoin after kick) */
  12
  13 inline int strtoint(const std::string &str)
  14 {
  15         std::istringstream ss(str);
  16         int result;
  17         ss >> result;
  18         return result;
  19 }
  20
  21 typedef std::map<userrec*, time_t> delaylist;
  22
  23 class KickRejoin : public ModeHandler
  24 {
  25  public:
  26         KickRejoin() : ModeHandler('J', 1, 0, false, MODETYPE_CHANNEL, false) { }
  27
  28         ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  29         {
  30                 if (!adding)
  31                 {
  32                         // Taking the mode off, we need to clean up.
  33                         delaylist* dl;
  34
  35                         if (channel->GetExt("norejoinusers", dl))
  36                         {
  37                                 DELETE(dl);
  38                                 channel->Shrink("norejoinusers");
  39                         }
  40                 }
  41                 if ((!adding) || (atoi(parameter.c_str()) > 0))
  42                 {
  43                         parameter = ConvToStr(atoi(parameter.c_str()));
  44                         channel->SetModeParam('J', parameter.c_str(), adding);
  45                         channel->SetMode('J', adding);
  46                         return MODEACTION_ALLOW;
  47                 }
  48                 else
  49                 {
  50                         return MODEACTION_DENY;
  51                 }
  52         }
  53 };
  54
  55 class ModuleKickNoRejoin : public Module
  56 {
  57         Server *Srv;
  58         KickRejoin* kr;
  59
  60 public:
  61
  62         ModuleKickNoRejoin(Server* Me)
  63                 : Module::Module(Me)
  64         {
  65                 Srv = Me;
  66                 kr = new KickRejoin();
  67                 Srv->AddMode(kr, 'J');
  68         }
  69
  70         virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
  71         {
  72                 if (chan)
  73                 {
  74                         delaylist* dl;
  75                         if (chan->GetExt("norejoinusers", dl))
  76                         {
  77                                 log(DEBUG, "m_kicknorejoin.so: got delay list, iterating over it");
  78                                 std::vector<userrec*> itemstoremove;
  79
  80                                 for (delaylist::iterator iter = dl->begin(); iter != dl->end(); iter++)
  81                                 {
  82                                         log(DEBUG, "m_kicknorejoin.so:\t[%s] => %d", iter->first->nick, iter->second);
  83                                         if (iter->second > time(NULL))
  84                                         {
  85                                                 log(DEBUG, "m_kicknorejoin.so: still inside time slot");
  86                                                 if (iter->first == user)
  87                                                 {
  88                                                         log(DEBUG, "m_kicknorejoin.so: and we have the right user");
  89                                                         WriteServ(user->fd, "495 %s %s :You cannot rejoin this channel yet after being kicked (+J)", user->nick, chan->name);
  90                                                         return 1;
  91                                                 }
  92                                         }
  93                                         else
  94                                         {
  95                                                 // Expired record, remove.
  96                                                 log(DEBUG, "m_kicknorejoin.so: record expired");
  97                                                 itemstoremove.push_back(iter->first);
  98                                         }
  99                                 }
 100
 101                                 for (unsigned int i = 0; i < itemstoremove.size(); i++)
 102                                         dl->erase(itemstoremove[i]);
 103
 104                                 if (!dl->size())
 105                                 {
 106                                         // Now it's empty..
 107                                                 DELETE(dl);
 108                                                 chan->Shrink("norejoinusers");
 109                                 }
 110                         }
 111                 }
 112                 return 0;
 113         }
 114
 115         virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
 116         {
 117                 if (chan->IsModeSet('J') && (source != user))
 118                 {
 119                         delaylist* dl;
 120                         if (!chan->GetExt("norejoinusers", dl))
 121                         {
 122                                 dl = new delaylist;
 123                                 chan->Extend("norejoinusers", dl);
 124                         }
 125
 126                         log(DEBUG, "m_kicknorejoin.so: setting record for %s, %d second delay", user->nick, strtoint(chan->GetModeParameter('J')));
 127                         (*dl)[user] = time(NULL) + strtoint(chan->GetModeParameter('J'));
 128                 }
 129         }
 130
 131         virtual void OnChannelDelete(chanrec* chan)
 132         {
 133                 delaylist* dl;
 134
 135                 if (chan->GetExt("norejoinusers", dl))
 136                 {
 137                         DELETE(dl);
 138                         chan->Shrink("norejoinusers");
 139                 }
 140         }
 141
 142         virtual void OnCleanup(int target_type, void* item)
 143         {
 144                 if(target_type == TYPE_CHANNEL)
 145                         OnChannelDelete((chanrec*)item);
 146         }
 147
 148         virtual void Implements(char* List)
 149         {
 150                 List[I_OnCleanup] = List[I_On005Numeric] = List[I_OnChannelDelete] = List[I_OnUserPreJoin] = List[I_OnUserKick] = 1;
 151         }
 152
 153         virtual void On005Numeric(std::string &output)
 154         {
 155                 InsertMode(output, "J", 3);
 156         }
 157
 158         virtual ~ModuleKickNoRejoin()
 159         {
 160                 DELETE(kr);
 161         }
 162
 163         virtual Version GetVersion()
 164         {
 165                 return Version(1, 0, 0, 0, VF_STATIC | VF_VENDOR);
 166         }
 167 };
 168
 169
 170 class ModuleKickNoRejoinFactory : public ModuleFactory
 171 {
 172  public:
 173         ModuleKickNoRejoinFactory()
 174         {
 175         }
 176
 177         ~ModuleKickNoRejoinFactory()
 178         {
 179         }
 180
 181         virtual Module * CreateModule(Server* Me)
 182         {
 183                 return new ModuleKickNoRejoin(Me);
 184         }
 185
 186 };
 187
 188
 189 extern "C" void * init_module( void )
 190 {
 191         return new ModuleKickNoRejoinFactory;
 192 }
 193