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,"NICKLOCK", 2),
  25                 locked(ext)
  26         {
  27                 flags_needed = 'o';
  28                 syntax = "<oldnick> <newnick>";
  29                 TRANSLATE3(TR_NICK, TR_TEXT, TR_END);
  30         }
  31
  32         CmdResult Handle(const std::vector<std::string>& parameters, User *user)
  33         {
  34                 User* target = ServerInstance->FindNick(parameters[0]);
  35
  36                 /* Do local sanity checks and bails */
  37                 if (IS_LOCAL(user))
  38                 {
  39                         if (target && ServerInstance->ULine(target->server))
  40                         {
  41                                 user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKLOCK command on a u-lined client",user->nick.c_str());
  42                                 return CMD_FAILURE;
  43                         }
  44
  45                         if (!target)
  46                         {
  47                                 user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
  48                                 return CMD_FAILURE;
  49                         }
  50
  51                         if (!ServerInstance->IsNick(parameters[1].c_str(), ServerInstance->Config->Limits.NickMax))
  52                         {
  53                                 user->WriteServ("NOTICE %s :*** Invalid nickname '%s'", user->nick.c_str(), parameters[1].c_str());
  54                                 return CMD_FAILURE;
  55                         }
  56
  57                         user->WriteServ("947 %s %s :Nickname now locked.", user->nick.c_str(), parameters[1].c_str());
  58                 }
  59
  60                 /* If we made it this far, extend the user */
  61                 if (target && IS_LOCAL(target))
  62                 {
  63                         locked.set(target, 1);
  64
  65                         std::string oldnick = target->nick;
  66                         if (target->ForceNickChange(parameters[1].c_str()))
  67                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used NICKLOCK to change and hold "+oldnick+" to "+parameters[1]);
  68                         else
  69                         {
  70                                 std::string newnick = target->nick;
  71                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used NICKLOCK, but "+oldnick+" failed nick change to "+parameters[1]+" and was locked to "+newnick+" instead");
  72                         }
  73                 }
  74
  75                 return CMD_SUCCESS;
  76         }
  77
  78         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  79         {
  80                 User* dest = ServerInstance->FindNick(parameters[0]);
  81                 if (dest)
  82                         return ROUTE_OPT_UCAST(dest->server);
  83                 return ROUTE_LOCALONLY;
  84         }
  85 };
  86
  87 /** Handle /NICKUNLOCK
  88  */
  89 class CommandNickunlock : public Command
  90 {
  91  public:
  92         LocalIntExt& locked;
  93         CommandNickunlock (Module* Creator, LocalIntExt& ext) : Command(Creator,"NICKUNLOCK", 1),
  94                 locked(ext)
  95         {
  96                 flags_needed = 'o';
  97                 syntax = "<locked-nick>";
  98                 TRANSLATE2(TR_NICK, TR_END);
  99         }
 100
 101         CmdResult Handle (const std::vector<std::string>& parameters, User *user)
 102         {
 103                 User* target = ServerInstance->FindNick(parameters[0]);
 104
 105                 /* Do local sanity checks and bails */
 106                 if (IS_LOCAL(user))
 107                 {
 108                         if (target && ServerInstance->ULine(target->server))
 109                         {
 110                                 user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKUNLOCK command on a u-lined client",user->nick.c_str());
 111                                 return CMD_FAILURE;
 112                         }
 113
 114                         if (!target)
 115                         {
 116                                 user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
 117                                 return CMD_FAILURE;
 118                         }
 119                 }
 120
 121                 if (target && IS_LOCAL(target))
 122                 {
 123                         if (locked.set(target, 0))
 124                         {
 125                                 ServerInstance->SNO->WriteGlobalSno('a', std::string(user->nick)+" used NICKUNLOCK on "+parameters[0]);
 126                                 user->WriteNumeric(945, "%s %s :Nickname now unlocked.",user->nick.c_str(),target->nick.c_str());
 127                         }
 128                         else
 129                         {
 130                                 user->WriteNumeric(946, "%s %s :This user's nickname is not locked.",user->nick.c_str(),target->nick.c_str());
 131                                 return CMD_FAILURE;
 132                         }
 133                 }
 134
 135                 return CMD_SUCCESS;
 136         }
 137
 138         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
 139         {
 140                 User* dest = ServerInstance->FindNick(parameters[0]);
 141                 if (dest)
 142                         return ROUTE_OPT_UCAST(dest->server);
 143                 return ROUTE_LOCALONLY;
 144         }
 145 };
 146
 147
 148 class ModuleNickLock : public Module
 149 {
 150         LocalIntExt locked;
 151         CommandNicklock cmd1;
 152         CommandNickunlock cmd2;
 153  public:
 154         ModuleNickLock()
 155                 : locked("nick_locked", this), cmd1(this, locked), cmd2(this, locked)
 156         {
 157                 ServerInstance->AddCommand(&cmd1);
 158                 ServerInstance->AddCommand(&cmd2);
 159                 ServerInstance->Extensions.Register(&locked);
 160                 ServerInstance->Modules->Attach(I_OnUserPreNick, this);
 161         }
 162
 163         ~ModuleNickLock()
 164         {
 165         }
 166
 167         Version GetVersion()
 168         {
 169                 return Version("Provides the NICKLOCK command, allows an oper to chage a users nick and lock them to it until they quit", VF_COMMON | VF_VENDOR);
 170         }
 171
 172
 173         ModResult OnUserPreNick(User* user, const std::string &newnick)
 174         {
 175                 if (!IS_LOCAL(user))
 176                         return MOD_RES_PASSTHRU;
 177
 178                 if (isdigit(newnick[0])) /* Allow a switch to a UID */
 179                         return MOD_RES_PASSTHRU;
 180
 181                 if (ServerInstance->NICKForced.get(user)) /* Allow forced nick changes */
 182                         return MOD_RES_PASSTHRU;
 183
 184                 if (locked.get(user))
 185                 {
 186                         user->WriteNumeric(447, "%s :You cannot change your nickname (your nick is locked)",user->nick.c_str());
 187                         return MOD_RES_DENY;
 188                 }
 189                 return MOD_RES_PASSTHRU;
 190         }
 191
 192         void Prioritize()
 193         {
 194                 Module *nflood = ServerInstance->Modules->Find("m_nickflood.so");
 195                 ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIORITY_BEFORE, &nflood);
 196         }
 197 };
 198
 199 MODULE_INIT(ModuleNickLock)