src/modules/m_nicklock.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 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
  16 /* $ModDesc: Provides the NICKLOCK command, allows an oper to chage a users nick and lock them to it until they quit */
  17
  18 /** Handle /NICKLOCK
  19  */
  20 class CommandNicklock : public Command
  21 {
  22
  23  public:
  24         CommandNicklock (InspIRCd* Instance) : Command(Instance,"NICKLOCK", "o", 2)
  25         {
  26                 this->source = "m_nicklock.so";
  27                 syntax = "<oldnick> <newnick>";
  28                 TRANSLATE3(TR_NICK, TR_TEXT, TR_END);
  29         }
  30
  31         CmdResult Handle(const std::vector<std::string>& parameters, User *user)
  32         {
  33                 User* target = ServerInstance->FindNick(parameters[0]);
  34
  35                 /* Do local sanity checks and bails */
  36                 if (IS_LOCAL(user))
  37                 {
  38                         if (target && ServerInstance->ULine(target->server))
  39                         {
  40                                 user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKLOCK command on a u-lined client",user->nick.c_str());
  41                                 return CMD_FAILURE;
  42                         }
  43
  44                         if (!target)
  45                         {
  46                                 user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
  47                                 return CMD_FAILURE;
  48                         }
  49
  50                         if (target->GetExt("nick_locked"))
  51                         {
  52                                 user->WriteNumeric(946, "%s %s :This user's nickname is already locked.",user->nick.c_str(),target->nick.c_str());
  53                                 return CMD_FAILURE;
  54                         }
  55
  56                         if (!ServerInstance->IsNick(parameters[1].c_str(), ServerInstance->Config->Limits.NickMax))
  57                         {
  58                                 user->WriteServ("NOTICE %s :*** Invalid nickname '%s'", user->nick.c_str(), parameters[1].c_str());
  59                                 return CMD_FAILURE;
  60                         }
  61                 }
  62
  63                 /* If we made it this far, extend the user */
  64                 if (target)
  65                 {
  66                         target->Extend("nick_locked", "ON");
  67                         ServerInstance->SNO->WriteToSnoMask('A', user->nick+" used NICKLOCK to change and hold "+target->nick+" to "+parameters[1]);
  68
  69                         /* Only send out nick from local server */
  70                         if (IS_LOCAL(target))
  71                         {
  72                                 std::string oldnick = user->nick;
  73                                 std::string newnick = target->nick;
  74                                 if (!target->ForceNickChange(parameters[1].c_str()))
  75                                 {
  76                                         /* XXX: We failed, this *should* not happen but if it does
  77                                          * tell everybody. Note user is still nick locked on their old
  78                                          * nick instead.
  79                                          */
  80                                         ServerInstance->SNO->WriteToSnoMask('A', oldnick+" failed nickchange on NICKLOCK (from "+newnick+" to "+parameters[1]+") Locked to "+newnick+" instead");
  81                                         ServerInstance->PI->SendSNONotice("A", oldnick+" failed nickchange on NICKLOCK (from "+newnick+" to "+parameters[1]+") Locked to "+newnick+" instead");
  82                                 }
  83                         }
  84                 }
  85
  86                 /* Route it */
  87                 return CMD_SUCCESS;
  88         }
  89 };
  90
  91 /** Handle /NICKUNLOCK
  92  */
  93 class CommandNickunlock : public Command
  94 {
  95  public:
  96         CommandNickunlock (InspIRCd* Instance) : Command(Instance,"NICKUNLOCK", "o", 1)
  97         {
  98                 this->source = "m_nicklock.so";
  99                 syntax = "<locked-nick>";
 100         }
 101
 102         CmdResult Handle (const std::vector<std::string>& parameters, User *user)
 103         {
 104                 User* target = ServerInstance->FindNick(parameters[0]);
 105
 106                 /* Do local sanity checks and bails */
 107                 if (IS_LOCAL(user))
 108                 {
 109                         if (target && ServerInstance->ULine(target->server))
 110                         {
 111                                 user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKUNLOCK command on a u-lined client",user->nick.c_str());
 112                                 return CMD_FAILURE;
 113                         }
 114
 115                         if (!target)
 116                         {
 117                                 user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
 118                                 return CMD_FAILURE;
 119                         }
 120
 121                         if (!target->GetExt("nick_locked"))
 122                         {
 123                                 user->WriteNumeric(946, "%s %s :This user's nickname is not locked.",user->nick.c_str(),target->nick.c_str());
 124                                 return CMD_FAILURE;
 125                         }
 126                 }
 127
 128                 /* If we made it this far, the command is going out on the wire so send local snotice */
 129                 ServerInstance->SNO->WriteToSnoMask('A', std::string(user->nick)+" used NICKUNLOCK on "+parameters[0]);
 130
 131                 if (target)
 132                 {
 133                         target->Shrink("nick_locked");
 134                         if (IS_LOCAL(user))
 135                                 user->WriteNumeric(945, "%s %s :Nickname now unlocked.",user->nick.c_str(),target->nick.c_str());
 136                 }
 137
 138                 /* Route it */
 139                 return CMD_SUCCESS;
 140         }
 141 };
 142
 143
 144 class ModuleNickLock : public Module
 145 {
 146         CommandNicklock*        cmd1;
 147         CommandNickunlock*      cmd2;
 148         char* n;
 149  public:
 150         ModuleNickLock(InspIRCd* Me)
 151                 : Module(Me)
 152         {
 153
 154                 cmd1 = new CommandNicklock(ServerInstance);
 155                 cmd2 = new CommandNickunlock(ServerInstance);
 156                 ServerInstance->AddCommand(cmd1);
 157                 ServerInstance->AddCommand(cmd2);
 158                 Implementation eventlist[] = { I_OnUserPreNick, I_OnUserQuit, I_OnCleanup };
 159                 ServerInstance->Modules->Attach(eventlist, this, 3);
 160         }
 161
 162         virtual ~ModuleNickLock()
 163         {
 164         }
 165
 166         virtual Version GetVersion()
 167         {
 168                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
 169         }
 170
 171
 172         virtual int OnUserPreNick(User* user, const std::string &newnick)
 173         {
 174                 if (!IS_LOCAL(user))
 175                         return 0;
 176
 177                 if (isdigit(newnick[0])) /* Allow a switch to a UID */
 178                         return 0;
 179
 180                 if (user->GetExt("NICKForced")) /* Allow forced nick changes */
 181                         return 0;
 182
 183                 if (user->GetExt("nick_locked", n))
 184                 {
 185                         user->WriteNumeric(447, "%s :You cannot change your nickname (your nick is locked)",user->nick.c_str());
 186                         return 1;
 187                 }
 188                 return 0;
 189         }
 190
 191         virtual void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 192         {
 193                 user->Shrink("nick_locked");
 194         }
 195
 196         void Prioritize()
 197         {
 198                 Module *nflood = ServerInstance->Modules->Find("m_nickflood.so");
 199                 ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIO_BEFORE, &nflood);
 200         }
 201
 202         virtual void OnCleanup(int target_type, void* item)
 203         {
 204                 if(target_type == TYPE_USER)
 205                 {
 206                         User* user = (User*)item;
 207                         user->Shrink("nick_locked");
 208                 }
 209         }
 210 };
 211
 212 MODULE_INIT(ModuleNickLock)