src/modules/m_banexception.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include "inspircd.h"
  15 #include "u_listmode.h"
  16 #include "wildcard.h"
  17
  18 /* $ModDesc: Provides support for the +e channel mode */
  19 /* $ModDep: ../../include/u_listmode.h */
  20
  21 /* Written by Om<om@inspircd.org>, April 2005. */
  22 /* Rewritten to use the listmode utility by Om, December 2005 */
  23 /* Adapted from m_exception, which was originally based on m_chanprotect and m_silence */
  24
  25 // The +e channel mode takes a nick!ident@host, glob patterns allowed,
  26 // and if a user matches an entry on the +e list then they can join the channel, overriding any (+b) bans set on them
  27 // Now supports CIDR and IP addresses -- Brain
  28
  29
  30 /** Handles +e channel mode
  31  */
  32 class BanException : public ListModeBase
  33 {
  34  public:
  35         BanException(InspIRCd* Instance) : ListModeBase(Instance, 'e', "End of Channel Exception List", "348", "349", true) { }
  36 };
  37
  38
  39 class ModuleBanException : public Module
  40 {
  41         BanException* be;
  42
  43
  44 public:
  45         ModuleBanException(InspIRCd* Me)
  46         : Module(Me)
  47         {
  48                 be = new BanException(ServerInstance);
  49                 if (!ServerInstance->AddMode(be))
  50                         throw ModuleException("Could not add new modes!");
  51                 ServerInstance->Modules->PublishInterface("ChannelBanList", this);
  52         }
  53
  54         virtual void Implements(char* List)
  55         {
  56                 be->DoImplements(List);
  57                 List[I_OnRehash] = List[I_OnRequest] = List[I_On005Numeric] = List[I_OnCheckBan] = 1;
  58         }
  59
  60         virtual void On005Numeric(std::string &output)
  61         {
  62                 output.append(" EXCEPTS=e");
  63         }
  64
  65         virtual int OnCheckBan(User* user, Channel* chan)
  66         {
  67                 if (chan != NULL)
  68                 {
  69                         modelist* list;
  70                         chan->GetExt(be->GetInfoKey(), list);
  71
  72                         if (list)
  73                         {
  74                                 char mask[MAXBUF];
  75                                 snprintf(mask, MAXBUF, "%s!%s@%s", user->nick, user->ident, user->GetIPString());
  76                                 for (modelist::iterator it = list->begin(); it != list->end(); it++)
  77                                 {
  78                                         if (match(user->GetFullRealHost(), it->mask.c_str()) || match(user->GetFullHost(), it->mask.c_str()) || (match(mask, it->mask.c_str(), true)))
  79                                         {
  80                                                 // They match an entry on the list, so let them in.
  81                                                 return 1;
  82                                         }
  83                                 }
  84                                 return 0;
  85                         }
  86                         // or if there wasn't a list, there can't be anyone on it, so we don't need to do anything.
  87                 }
  88                 return 0;
  89         }
  90
  91         virtual void OnCleanup(int target_type, void* item)
  92         {
  93                 be->DoCleanup(target_type, item);
  94         }
  95
  96         virtual void OnSyncChannel(Channel* chan, Module* proto, void* opaque)
  97         {
  98                 be->DoSyncChannel(chan, proto, opaque);
  99         }
 100
 101         virtual void OnChannelDelete(Channel* chan)
 102         {
 103                 be->DoChannelDelete(chan);
 104         }
 105
 106         virtual void OnRehash(User* user, const std::string &param)
 107         {
 108                 be->DoRehash();
 109         }
 110
 111         virtual char* OnRequest(Request* request)
 112         {
 113                 ListModeRequest* LM = (ListModeRequest*)request;
 114                 if (strcmp("LM_CHECKLIST", request->GetId()) == 0)
 115                 {
 116                         modelist* list;
 117                         LM->chan->GetExt(be->GetInfoKey(), list);
 118                         if (list)
 119                         {
 120                                 char mask[MAXBUF];
 121                                 snprintf(mask, MAXBUF, "%s!%s@%s", LM->user->nick, LM->user->ident, LM->user->GetIPString());
 122                                 for (modelist::iterator it = list->begin(); it != list->end(); it++)
 123                                 {
 124                                         if (match(LM->user->GetFullRealHost(), it->mask.c_str()) || match(LM->user->GetFullHost(), it->mask.c_str()) || (match(mask, it->mask.c_str(), true)))
 125                                         {
 126                                                 // They match an entry
 127                                                 return (char*)it->mask.c_str();
 128                                         }
 129                                 }
 130                                 return NULL;
 131                         }
 132                 }
 133                 return NULL;
 134         }
 135
 136         virtual Version GetVersion()
 137         {
 138                 return Version(1, 1, 0, 3, VF_COMMON | VF_VENDOR, API_VERSION);
 139         }
 140
 141         virtual ~ModuleBanException()
 142         {
 143                 ServerInstance->Modes->DelMode(be);
 144                 delete be;
 145                 ServerInstance->Modules->UnpublishInterface("ChannelBanList", this);
 146         }
 147 };
 148
 149 MODULE_INIT(ModuleBanException)