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         std::pair<bool,std::string> ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string &parameter)
  29         {
  30                 if (channel->IsModeSet('J'))
  31                         return std::make_pair(true, channel->GetModeParameter('J'));
  32                 else
  33                         return std::make_pair(false, parameter);
  34         }
  35
  36         ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  37         {
  38                 if (!adding)
  39                 {
  40                         // Taking the mode off, we need to clean up.
  41                         delaylist* dl;
  42
  43                         if (channel->GetExt("norejoinusers", dl))
  44                         {
  45                                 DELETE(dl);
  46                                 channel->Shrink("norejoinusers");
  47                         }
  48                 }
  49                 if ((!adding) || (atoi(parameter.c_str()) > 0))
  50                 {
  51                         parameter = ConvToStr(atoi(parameter.c_str()));
  52                         channel->SetModeParam('J', parameter.c_str(), adding);
  53                         channel->SetMode('J', adding);
  54                         return MODEACTION_ALLOW;
  55                 }
  56                 else
  57                 {
  58                         return MODEACTION_DENY;
  59                 }
  60         }
  61 };
  62
  63 class ModuleKickNoRejoin : public Module
  64 {
  65         Server *Srv;
  66         KickRejoin* kr;
  67
  68 public:
  69
  70         ModuleKickNoRejoin(Server* Me)
  71                 : Module::Module(Me)
  72         {
  73                 Srv = Me;
  74                 kr = new KickRejoin();
  75                 Srv->AddMode(kr, 'J');
  76         }
  77
  78         virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
  79         {
  80                 if (chan)
  81                 {
  82                         delaylist* dl;
  83                         if (chan->GetExt("norejoinusers", dl))
  84                         {
  85                                 log(DEBUG, "m_kicknorejoin.so: got delay list, iterating over it");
  86                                 std::vector<userrec*> itemstoremove;
  87
  88                                 for (delaylist::iterator iter = dl->begin(); iter != dl->end(); iter++)
  89                                 {
  90                                         log(DEBUG, "m_kicknorejoin.so:\t[%s] => %d", iter->first->nick, iter->second);
  91                                         if (iter->second > time(NULL))
  92                                         {
  93                                                 log(DEBUG, "m_kicknorejoin.so: still inside time slot");
  94                                                 if (iter->first == user)
  95                                                 {
  96                                                         log(DEBUG, "m_kicknorejoin.so: and we have the right user");
  97                                                         WriteServ(user->fd, "495 %s %s :You cannot rejoin this channel yet after being kicked (+J)", user->nick, chan->name);
  98                                                         return 1;
  99                                                 }
 100                                         }
 101                                         else
 102                                         {
 103                                                 // Expired record, remove.
 104                                                 log(DEBUG, "m_kicknorejoin.so: record expired");
 105                                                 itemstoremove.push_back(iter->first);
 106                                         }
 107                                 }
 108
 109                                 for (unsigned int i = 0; i < itemstoremove.size(); i++)
 110                                         dl->erase(itemstoremove[i]);
 111
 112                                 if (!dl->size())
 113                                 {
 114                                         // Now it's empty..
 115                                                 DELETE(dl);
 116                                                 chan->Shrink("norejoinusers");
 117                                 }
 118                         }
 119                 }
 120                 return 0;
 121         }
 122
 123         virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
 124         {
 125                 if (chan->IsModeSet('J') && (source != user))
 126                 {
 127                         delaylist* dl;
 128                         if (!chan->GetExt("norejoinusers", dl))
 129                         {
 130                                 dl = new delaylist;
 131                                 chan->Extend("norejoinusers", dl);
 132                         }
 133
 134                         log(DEBUG, "m_kicknorejoin.so: setting record for %s, %d second delay", user->nick, strtoint(chan->GetModeParameter('J')));
 135                         (*dl)[user] = time(NULL) + strtoint(chan->GetModeParameter('J'));
 136                 }
 137         }
 138
 139         virtual void OnChannelDelete(chanrec* chan)
 140         {
 141                 delaylist* dl;
 142
 143                 if (chan->GetExt("norejoinusers", dl))
 144                 {
 145                         DELETE(dl);
 146                         chan->Shrink("norejoinusers");
 147                 }
 148         }
 149
 150         virtual void OnCleanup(int target_type, void* item)
 151         {
 152                 if(target_type == TYPE_CHANNEL)
 153                         OnChannelDelete((chanrec*)item);
 154         }
 155
 156         virtual void Implements(char* List)
 157         {
 158                 List[I_OnCleanup] = List[I_On005Numeric] = List[I_OnChannelDelete] = List[I_OnUserPreJoin] = List[I_OnUserKick] = 1;
 159         }
 160
 161         virtual void On005Numeric(std::string &output)
 162         {
 163                 InsertMode(output, "J", 3);
 164         }
 165
 166         virtual ~ModuleKickNoRejoin()
 167         {
 168                 DELETE(kr);
 169         }
 170
 171         virtual Version GetVersion()
 172         {
 173                 return Version(1, 0, 0, 0, VF_STATIC | VF_VENDOR);
 174         }
 175 };
 176
 177
 178 class ModuleKickNoRejoinFactory : public ModuleFactory
 179 {
 180  public:
 181         ModuleKickNoRejoinFactory()
 182         {
 183         }
 184
 185         ~ModuleKickNoRejoinFactory()
 186         {
 187         }
 188
 189         virtual Module * CreateModule(Server* Me)
 190         {
 191                 return new ModuleKickNoRejoin(Me);
 192         }
 193
 194 };
 195
 196
 197 extern "C" void * init_module( void )
 198 {
 199         return new ModuleKickNoRejoinFactory;
 200 }
 201