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
  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                         user->WriteServ("947 %s %s :Nickname now locked.", user->nick.c_str(), parameters[1].c_str());
  63                 }
  64
  65                 /* If we made it this far, extend the user */
  66                 if (target)
  67                 {
  68                         // This has to be done *here*, because this metadata must be stored netwide.
  69                         target->Extend("nick_locked", "ON");
  70
  71                         /* Only send out nick from local server */
  72                         if (IS_LOCAL(target))
  73                         {
  74                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used NICKLOCK to change and hold "+target->nick+" to "+parameters[1]);
  75                                 std::string oldnick = user->nick;
  76                                 std::string newnick = target->nick;
  77                                 if (!target->ForceNickChange(parameters[1].c_str()))
  78                                 {
  79                                         /* XXX: We failed, this *should* not happen but if it does
  80                                          * tell everybody. Note user is still nick locked on their old
  81                                          * nick instead.
  82                                          */
  83                                         ServerInstance->SNO->WriteToSnoMask('a', oldnick+" failed nickchange on NICKLOCK (from "+newnick+" to "+parameters[1]+") Locked to "+newnick+" instead");
  84                                         ServerInstance->PI->SendSNONotice("A", oldnick+" failed nickchange on NICKLOCK (from "+newnick+" to "+parameters[1]+") Locked to "+newnick+" instead");
  85                                 }
  86                         }
  87                 }
  88
  89                 /* Route it */
  90                 return CMD_SUCCESS;
  91         }
  92 };
  93
  94 /** Handle /NICKUNLOCK
  95  */
  96 class CommandNickunlock : public Command
  97 {
  98  public:
  99         CommandNickunlock (InspIRCd* Instance) : Command(Instance,"NICKUNLOCK", "o", 1)
 100         {
 101                 this->source = "m_nicklock.so";
 102                 syntax = "<locked-nick>";
 103         }
 104
 105         CmdResult Handle (const std::vector<std::string>& parameters, User *user)
 106         {
 107                 User* target = ServerInstance->FindNick(parameters[0]);
 108
 109                 /* Do local sanity checks and bails */
 110                 if (IS_LOCAL(user))
 111                 {
 112                         if (target && ServerInstance->ULine(target->server))
 113                         {
 114                                 user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKUNLOCK command on a u-lined client",user->nick.c_str());
 115                                 return CMD_FAILURE;
 116                         }
 117
 118                         if (!target)
 119                         {
 120                                 user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
 121                                 return CMD_FAILURE;
 122                         }
 123
 124                         if (!target->GetExt("nick_locked"))
 125                         {
 126                                 user->WriteNumeric(946, "%s %s :This user's nickname is not locked.",user->nick.c_str(),target->nick.c_str());
 127                                 return CMD_FAILURE;
 128                         }
 129                 }
 130
 131                 if (target)
 132                 {
 133                         target->Shrink("nick_locked");
 134                         if (IS_LOCAL(target))
 135                                 ServerInstance->SNO->WriteGlobalSno('a', std::string(user->nick)+" used NICKUNLOCK on "+parameters[0]);
 136                         if (IS_LOCAL(user))
 137                                 user->WriteNumeric(945, "%s %s :Nickname now unlocked.",user->nick.c_str(),target->nick.c_str());
 138                 }
 139
 140                 /* Route it */
 141                 return CMD_SUCCESS;
 142         }
 143 };
 144
 145
 146 class ModuleNickLock : public Module
 147 {
 148         CommandNicklock*        cmd1;
 149         CommandNickunlock*      cmd2;
 150         char* n;
 151  public:
 152         ModuleNickLock(InspIRCd* Me)
 153                 : Module(Me)
 154         {
 155
 156                 cmd1 = new CommandNicklock(ServerInstance);
 157                 cmd2 = new CommandNickunlock(ServerInstance);
 158                 ServerInstance->AddCommand(cmd1);
 159                 ServerInstance->AddCommand(cmd2);
 160                 Implementation eventlist[] = { I_OnUserPreNick, I_OnUserQuit, I_OnCleanup };
 161                 ServerInstance->Modules->Attach(eventlist, this, 3);
 162         }
 163
 164         virtual ~ModuleNickLock()
 165         {
 166         }
 167
 168         virtual Version GetVersion()
 169         {
 170                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
 171         }
 172
 173
 174         virtual int OnUserPreNick(User* user, const std::string &newnick)
 175         {
 176                 if (!IS_LOCAL(user))
 177                         return 0;
 178
 179                 if (isdigit(newnick[0])) /* Allow a switch to a UID */
 180                         return 0;
 181
 182                 if (user->GetExt("NICKForced")) /* Allow forced nick changes */
 183                         return 0;
 184
 185                 if (user->GetExt("nick_locked", n))
 186                 {
 187                         user->WriteNumeric(447, "%s :You cannot change your nickname (your nick is locked)",user->nick.c_str());
 188                         return 1;
 189                 }
 190                 return 0;
 191         }
 192
 193         virtual void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 194         {
 195                 user->Shrink("nick_locked");
 196         }
 197
 198         void Prioritize()
 199         {
 200                 Module *nflood = ServerInstance->Modules->Find("m_nickflood.so");
 201                 ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIORITY_BEFORE, &nflood);
 202         }
 203
 204         virtual void OnCleanup(int target_type, void* item)
 205         {
 206                 if(target_type == TYPE_USER)
 207                 {
 208                         User* user = (User*)item;
 209                         user->Shrink("nick_locked");
 210                 }
 211         }
 212 };
 213
 214 MODULE_INIT(ModuleNickLock)