src/modules/m_ojoin.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009 Taros <taros34@hotmail.com>
   5  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   6  *
   7  * This file is part of InspIRCd.  InspIRCd is free software: you can
   8  * redistribute it and/or modify it under the terms of the GNU General Public
   9  * License as published by the Free Software Foundation, version 2.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  14  * details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "inspircd.h"
  21
  22 #define NETWORK_VALUE 9000000
  23
  24 char NPrefix;
  25 bool notice;
  26 bool op;
  27
  28 /** Handle /OJOIN
  29  */
  30 class CommandOjoin : public SplitCommand
  31 {
  32  public:
  33         bool active;
  34         CommandOjoin(Module* parent) :
  35                 SplitCommand(parent, "OJOIN", 1)
  36         {
  37                 flags_needed = 'o'; Penalty = 0; syntax = "<channel>";
  38                 active = false;
  39         }
  40
  41         CmdResult HandleLocal(const std::vector<std::string>& parameters, LocalUser* user)
  42         {
  43                 // Make sure the channel name is allowable.
  44                 if (!ServerInstance->IsChannel(parameters[0]))
  45                 {
  46                         user->WriteNotice("*** Invalid characters in channel name or name too long");
  47                         return CMD_FAILURE;
  48                 }
  49
  50                 active = true;
  51                 // override is false because we want OnUserPreJoin to run
  52                 Channel* channel = Channel::JoinUser(user, parameters[0], false);
  53                 active = false;
  54
  55                 if (channel)
  56                 {
  57                         ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used OJOIN to join "+channel->name);
  58
  59                         if (notice)
  60                         {
  61                                 channel = ServerInstance->FindChan(parameters[0]);
  62                                 channel->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s joined on official network business.",
  63                                         parameters[0].c_str(), user->nick.c_str());
  64                                 ServerInstance->PI->SendChannelNotice(channel, 0, user->nick + " joined on official network business.");
  65                         }
  66                 }
  67                 else
  68                 {
  69                         ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used OJOIN in "+parameters[0]);
  70                         // they're already in the channel
  71                         std::vector<std::string> modes;
  72                         modes.push_back(parameters[0]);
  73                         modes.push_back(op ? "+Yo" : "+Y");
  74                         modes.push_back(user->nick);
  75                         if (op)
  76                                 modes.push_back(user->nick);
  77                         ServerInstance->Modes->Process(modes, ServerInstance->FakeClient);
  78                 }
  79                 return CMD_SUCCESS;
  80         }
  81 };
  82
  83 /** channel mode +Y
  84  */
  85 class NetworkPrefix : public ModeHandler
  86 {
  87  public:
  88         NetworkPrefix(Module* parent) : ModeHandler(parent, "official-join", 'Y', PARAM_ALWAYS, MODETYPE_CHANNEL)
  89         {
  90                 list = true;
  91                 prefix = NPrefix;
  92                 levelrequired = INT_MAX;
  93                 m_paramtype = TR_NICK;
  94                 prefixrank = NETWORK_VALUE;
  95         }
  96
  97         ModResult AccessCheck(User* source, Channel* channel, std::string &parameter, bool adding)
  98         {
  99                 User* theuser = ServerInstance->FindNick(parameter);
 100                 // remove own privs?
 101                 if (source == theuser && !adding)
 102                         return MOD_RES_ALLOW;
 103
 104                 return MOD_RES_PASSTHRU;
 105         }
 106
 107         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
 108         {
 109                 return MODEACTION_ALLOW;
 110         }
 111
 112 };
 113
 114 class ModuleOjoin : public Module
 115 {
 116         NetworkPrefix* np;
 117         CommandOjoin mycommand;
 118
 119  public:
 120
 121         ModuleOjoin()
 122                 : np(NULL), mycommand(this)
 123         {
 124         }
 125
 126         void init() CXX11_OVERRIDE
 127         {
 128                 /* Load config stuff */
 129                 OnRehash(NULL);
 130
 131                 /* Initialise module variables */
 132                 np = new NetworkPrefix(this);
 133
 134                 ServerInstance->Modules->AddService(*np);
 135                 ServerInstance->Modules->AddService(mycommand);
 136
 137                 Implementation eventlist[] = { I_OnUserPreJoin, I_OnUserPreKick, I_OnRehash };
 138                 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
 139         }
 140
 141         ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
 142         {
 143                 if (mycommand.active)
 144                 {
 145                         privs += 'Y';
 146                         if (op)
 147                                 privs += 'o';
 148                         return MOD_RES_ALLOW;
 149                 }
 150
 151                 return MOD_RES_PASSTHRU;
 152         }
 153
 154         void OnRehash(User* user) CXX11_OVERRIDE
 155         {
 156                 ConfigTag* Conf = ServerInstance->Config->ConfValue("ojoin");
 157
 158                 if (!np)
 159                 {
 160                         // This is done on module load only
 161                         std::string npre = Conf->getString("prefix");
 162                         NPrefix = npre.empty() ? 0 : npre[0];
 163
 164                         if (NPrefix && ServerInstance->Modes->FindPrefix(NPrefix))
 165                                 throw ModuleException("Looks like the +Y prefix you picked for m_ojoin is already in use. Pick another.");
 166                 }
 167
 168                 notice = Conf->getBool("notice", true);
 169                 op = Conf->getBool("op", true);
 170         }
 171
 172         ModResult OnUserPreKick(User* source, Membership* memb, const std::string &reason) CXX11_OVERRIDE
 173         {
 174                 // Don't do anything if they're not +Y
 175                 if (!memb->hasMode('Y'))
 176                         return MOD_RES_PASSTHRU;
 177
 178                 // Let them do whatever they want to themselves.
 179                 if (source == memb->user)
 180                         return MOD_RES_PASSTHRU;
 181
 182                 source->WriteNumeric(484, source->nick+" "+memb->chan->name+" :Can't kick "+memb->user->nick+" as they're on official network business.");
 183                 return MOD_RES_DENY;
 184         }
 185
 186         ~ModuleOjoin()
 187         {
 188                 delete np;
 189         }
 190
 191         void Prioritize()
 192         {
 193                 ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIORITY_FIRST);
 194         }
 195
 196         Version GetVersion() CXX11_OVERRIDE
 197         {
 198                 return Version("Network Business Join", VF_VENDOR);
 199         }
 200 };
 201
 202 MODULE_INIT(ModuleOjoin)