src/modules/m_nicklock.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 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 cmd_nicklock : public Command
  21 {
  22         char* dummy;
  23  public:
  24         cmd_nicklock (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 char** parameters, int pcnt, User *user)
  32         {
  33                 User* source = ServerInstance->FindNick(parameters[0]);
  34                 irc::string server;
  35                 irc::string me;
  36
  37                 // check user exists
  38                 if (!source)
  39                 {
  40                         return CMD_FAILURE;
  41                 }
  42
  43                 // check if user is locked
  44                 if (source->GetExt("nick_locked", dummy))
  45                 {
  46                         user->WriteServ("946 %s %s :This user's nickname is already locked.",user->nick,source->nick);
  47                         return CMD_FAILURE;
  48                 }
  49
  50                 // check nick is valid
  51                 if (!ServerInstance->IsNick(parameters[1]))
  52                 {
  53                         return CMD_FAILURE;
  54                 }
  55
  56                 // let others know
  57                 ServerInstance->WriteOpers(std::string(user->nick)+" used NICKLOCK to change and hold "+parameters[0]+" to "+parameters[1]);
  58
  59                 if (!source->ForceNickChange(parameters[1]))
  60                 {
  61                         // ugh, nickchange failed for some reason -- possibly existing nick?
  62                         User::QuitUser(ServerInstance, source, "Nickname collision");
  63                 }
  64
  65                 // give them a lock flag
  66                 source->Extend("nick_locked", "ON");
  67
  68                 /* route */
  69                 return CMD_SUCCESS;
  70         }
  71 };
  72
  73 /** Handle /NICKUNLOCK
  74  */
  75 class cmd_nickunlock : public Command
  76 {
  77  public:
  78         cmd_nickunlock (InspIRCd* Instance) : Command(Instance,"NICKUNLOCK", 'o', 1)
  79         {
  80                 this->source = "m_nicklock.so";
  81                 syntax = "<locked-nick>";
  82         }
  83
  84         CmdResult Handle (const char** parameters, int pcnt, User *user)
  85         {
  86                 User* source = ServerInstance->FindNick(parameters[0]);
  87                 if (source)
  88                 {
  89                         source->Shrink("nick_locked");
  90                         user->WriteServ("945 %s %s :Nickname now unlocked.",user->nick,source->nick);
  91                         ServerInstance->WriteOpers(std::string(user->nick)+" used NICKUNLOCK on "+parameters[0]);
  92                         return CMD_SUCCESS;
  93                 }
  94
  95                 return CMD_FAILURE;
  96         }
  97 };
  98
  99
 100 class ModuleNickLock : public Module
 101 {
 102         cmd_nicklock*   cmd1;
 103         cmd_nickunlock* cmd2;
 104         char* n;
 105  public:
 106         ModuleNickLock(InspIRCd* Me)
 107                 : Module(Me)
 108         {
 109
 110                 cmd1 = new cmd_nicklock(ServerInstance);
 111                 cmd2 = new cmd_nickunlock(ServerInstance);
 112                 ServerInstance->AddCommand(cmd1);
 113                 ServerInstance->AddCommand(cmd2);
 114         }
 115
 116         virtual ~ModuleNickLock()
 117         {
 118         }
 119
 120         virtual Version GetVersion()
 121         {
 122                 return Version(1, 1, 0, 1, VF_COMMON | VF_VENDOR, API_VERSION);
 123         }
 124
 125         void Implements(char* List)
 126         {
 127                 List[I_OnUserPreNick] = List[I_OnUserQuit] = List[I_OnCleanup] = 1;
 128         }
 129
 130         virtual int OnUserPreNick(User* user, const std::string &newnick)
 131         {
 132                 if (isdigit(newnick[0])) /* allow a switch to a UID */
 133                         return 0;
 134
 135                 if (user->GetExt("nick_locked", n))
 136                 {
 137                         user->WriteServ("447 %s :You cannot change your nickname (your nick is locked)",user->nick);
 138                         return 1;
 139                 }
 140                 return 0;
 141         }
 142
 143         virtual void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 144         {
 145                 user->Shrink("nick_locked");
 146         }
 147
 148         virtual void OnCleanup(int target_type, void* item)
 149         {
 150                 if(target_type == TYPE_USER)
 151                 {
 152                         User* user = (User*)item;
 153                         user->Shrink("nick_locked");
 154                 }
 155         }
 156 };
 157
 158 MODULE_INIT(ModuleNickLock)