src/modules/m_banexception.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 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) : Module(Me)
  46         {
  47                 be = new BanException(ServerInstance);
  48                 if (!ServerInstance->Modes->AddMode(be))
  49                         throw ModuleException("Could not add new modes!");
  50                 ServerInstance->Modules->PublishInterface("ChannelBanList", this);
  51
  52                 be->DoImplements(this);
  53                 Implementation list[] = { I_OnRehash, I_OnRequest, I_On005Numeric, I_OnCheckBan };
  54                 Me->Modules->Attach(list, this, 4);
  55
  56         }
  57
  58         virtual void On005Numeric(std::string &output)
  59         {
  60                 output.append(" EXCEPTS=e");
  61         }
  62
  63         virtual int OnCheckBan(User* user, Channel* chan)
  64         {
  65                 if (chan != NULL)
  66                 {
  67                         modelist* list;
  68                         chan->GetExt(be->GetInfoKey(), list);
  69
  70                         if (list)
  71                         {
  72                                 char mask[MAXBUF];
  73                                 snprintf(mask, MAXBUF, "%s!%s@%s", user->nick, user->ident, user->GetIPString());
  74                                 for (modelist::iterator it = list->begin(); it != list->end(); it++)
  75                                 {
  76                                         if (match(user->GetFullRealHost(), it->mask.c_str()) || match(user->GetFullHost(), it->mask.c_str()) || (match(mask, it->mask.c_str(), true)))
  77                                         {
  78                                                 // They match an entry on the list, so let them in.
  79                                                 return 1;
  80                                         }
  81                                 }
  82                                 return 0;
  83                         }
  84                         // or if there wasn't a list, there can't be anyone on it, so we don't need to do anything.
  85                 }
  86                 return 0;
  87         }
  88
  89         virtual void OnCleanup(int target_type, void* item)
  90         {
  91                 be->DoCleanup(target_type, item);
  92         }
  93
  94         virtual void OnSyncChannel(Channel* chan, Module* proto, void* opaque)
  95         {
  96                 be->DoSyncChannel(chan, proto, opaque);
  97         }
  98
  99         virtual void OnChannelDelete(Channel* chan)
 100         {
 101                 be->DoChannelDelete(chan);
 102         }
 103
 104         virtual void OnRehash(User* user, const std::string &param)
 105         {
 106                 be->DoRehash();
 107         }
 108
 109         virtual const char* OnRequest(Request* request)
 110         {
 111                 ListModeRequest* LM = (ListModeRequest*)request;
 112                 if (strcmp("LM_CHECKLIST", request->GetId()) == 0)
 113                 {
 114                         modelist* list;
 115                         LM->chan->GetExt(be->GetInfoKey(), list);
 116                         if (list)
 117                         {
 118                                 char mask[MAXBUF];
 119                                 snprintf(mask, MAXBUF, "%s!%s@%s", LM->user->nick, LM->user->ident, LM->user->GetIPString());
 120                                 for (modelist::iterator it = list->begin(); it != list->end(); it++)
 121                                 {
 122                                         if (match(LM->user->GetFullRealHost(), it->mask.c_str()) || match(LM->user->GetFullHost(), it->mask.c_str()) || (match(mask, it->mask.c_str(), true)))
 123                                         {
 124                                                 // They match an entry
 125                                                 return (char*)it->mask.c_str();
 126                                         }
 127                                 }
 128                                 return NULL;
 129                         }
 130                 }
 131                 return NULL;
 132         }
 133
 134         virtual Version GetVersion()
 135         {
 136                 return Version(1, 2, 0, 3, VF_COMMON | VF_VENDOR, API_VERSION);
 137         }
 138
 139         virtual ~ModuleBanException()
 140         {
 141                 ServerInstance->Modes->DelMode(be);
 142                 delete be;
 143                 ServerInstance->Modules->UnpublishInterface("ChannelBanList", this);
 144         }
 145 };
 146
 147 MODULE_INIT(ModuleBanException)