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://wiki.inspircd.org/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  public:
  23         LocalIntExt& locked;
  24         CommandNicklock (Module* Creator, LocalIntExt& ext) : Command(Creator->ServerInstance, Creator,"NICKLOCK", "o", 2),
  25                 locked(ext)
  26         {
  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 (!ServerInstance->IsNick(parameters[1].c_str(), ServerInstance->Config->Limits.NickMax))
  51                         {
  52                                 user->WriteServ("NOTICE %s :*** Invalid nickname '%s'", user->nick.c_str(), parameters[1].c_str());
  53                                 return CMD_FAILURE;
  54                         }
  55
  56                         user->WriteServ("947 %s %s :Nickname now locked.", user->nick.c_str(), parameters[1].c_str());
  57                 }
  58
  59                 /* If we made it this far, extend the user */
  60                 if (target && IS_LOCAL(target))
  61                 {
  62                         locked.set(target, 1);
  63
  64                         std::string oldnick = target->nick;
  65                         if (target->ForceNickChange(parameters[1].c_str()))
  66                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used NICKLOCK to change and hold "+oldnick+" to "+parameters[1]);
  67                         else
  68                         {
  69                                 std::string newnick = target->nick;
  70                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used NICKLOCK, but "+oldnick+" failed nick change to "+parameters[1]+" and was locked to "+newnick+" instead");
  71                         }
  72                 }
  73
  74                 return CMD_SUCCESS;
  75         }
  76
  77         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  78         {
  79                 User* dest = ServerInstance->FindNick(parameters[0]);
  80                 if (dest)
  81                         return ROUTE_OPT_UCAST(dest->server);
  82                 return ROUTE_LOCALONLY;
  83         }
  84 };
  85
  86 /** Handle /NICKUNLOCK
  87  */
  88 class CommandNickunlock : public Command
  89 {
  90  public:
  91         LocalIntExt& locked;
  92         CommandNickunlock (Module* Creator, LocalIntExt& ext) : Command(Creator->ServerInstance, Creator,"NICKUNLOCK", "o", 1),
  93                 locked(ext)
  94         {
  95                 syntax = "<locked-nick>";
  96                 TRANSLATE2(TR_NICK, TR_END);
  97         }
  98
  99         CmdResult Handle (const std::vector<std::string>& parameters, User *user)
 100         {
 101                 User* target = ServerInstance->FindNick(parameters[0]);
 102
 103                 /* Do local sanity checks and bails */
 104                 if (IS_LOCAL(user))
 105                 {
 106                         if (target && ServerInstance->ULine(target->server))
 107                         {
 108                                 user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKUNLOCK command on a u-lined client",user->nick.c_str());
 109                                 return CMD_FAILURE;
 110                         }
 111
 112                         if (!target)
 113                         {
 114                                 user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
 115                                 return CMD_FAILURE;
 116                         }
 117                 }
 118
 119                 if (target && IS_LOCAL(target))
 120                 {
 121                         if (locked.set(target, 0))
 122                         {
 123                                 ServerInstance->SNO->WriteGlobalSno('a', std::string(user->nick)+" used NICKUNLOCK on "+parameters[0]);
 124                                 user->WriteNumeric(945, "%s %s :Nickname now unlocked.",user->nick.c_str(),target->nick.c_str());
 125                         }
 126                         else
 127                         {
 128                                 user->WriteNumeric(946, "%s %s :This user's nickname is not locked.",user->nick.c_str(),target->nick.c_str());
 129                                 return CMD_FAILURE;
 130                         }
 131                 }
 132
 133                 return CMD_SUCCESS;
 134         }
 135
 136         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
 137         {
 138                 User* dest = ServerInstance->FindNick(parameters[0]);
 139                 if (dest)
 140                         return ROUTE_OPT_UCAST(dest->server);
 141                 return ROUTE_LOCALONLY;
 142         }
 143 };
 144
 145
 146 class ModuleNickLock : public Module
 147 {
 148         LocalIntExt locked;
 149         CommandNicklock cmd1;
 150         CommandNickunlock cmd2;
 151  public:
 152         ModuleNickLock(InspIRCd* Me)
 153                 : Module(Me), locked("nick_locked", this), cmd1(this, locked), cmd2(this, locked)
 154         {
 155                 ServerInstance->AddCommand(&cmd1);
 156                 ServerInstance->AddCommand(&cmd2);
 157                 Extensible::Register(&locked);
 158                 ServerInstance->Modules->Attach(I_OnUserPreNick, this);
 159         }
 160
 161         ~ModuleNickLock()
 162         {
 163         }
 164
 165         Version GetVersion()
 166         {
 167                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
 168         }
 169
 170
 171         ModResult OnUserPreNick(User* user, const std::string &newnick)
 172         {
 173                 if (!IS_LOCAL(user))
 174                         return MOD_RES_PASSTHRU;
 175
 176                 if (isdigit(newnick[0])) /* Allow a switch to a UID */
 177                         return MOD_RES_PASSTHRU;
 178
 179                 if (User::NICKForced.get(user)) /* Allow forced nick changes */
 180                         return MOD_RES_PASSTHRU;
 181
 182                 if (locked.get(user))
 183                 {
 184                         user->WriteNumeric(447, "%s :You cannot change your nickname (your nick is locked)",user->nick.c_str());
 185                         return MOD_RES_DENY;
 186                 }
 187                 return MOD_RES_PASSTHRU;
 188         }
 189
 190         void Prioritize()
 191         {
 192                 Module *nflood = ServerInstance->Modules->Find("m_nickflood.so");
 193                 ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIORITY_BEFORE, &nflood);
 194         }
 195 };
 196
 197 MODULE_INIT(ModuleNickLock)