src/modules/m_securelist.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: A module overriding /list, and making it safe - stop those sendq problems. */
  17
  18 class ModuleSecureList : public Module
  19 {
  20  private:
  21         std::vector<std::string> allowlist;
  22         time_t WaitTime;
  23  public:
  24         ModuleSecureList()      {
  25                 OnRehash(NULL);
  26                 Implementation eventlist[] = { I_OnRehash, I_OnPreCommand, I_On005Numeric };
  27                 ServerInstance->Modules->Attach(eventlist, this, 3);
  28         }
  29
  30         virtual ~ModuleSecureList()
  31         {
  32         }
  33
  34         virtual Version GetVersion()
  35         {
  36                 return Version("A module overriding /list, and making it safe - stop those sendq problems.",VF_VENDOR,API_VERSION);
  37         }
  38
  39         void OnRehash(User* user)
  40         {
  41                 ConfigReader* MyConf = new ConfigReader;
  42                 allowlist.clear();
  43
  44                 for (int i = 0; i < MyConf->Enumerate("securehost"); i++)
  45                         allowlist.push_back(MyConf->ReadValue("securehost", "exception", i));
  46
  47                 WaitTime = MyConf->ReadInteger("securelist", "waittime", "60", 0, true);
  48                 delete MyConf;
  49         }
  50
  51
  52         /*
  53          * OnPreCommand()
  54          *   Intercept the LIST command.
  55          */
  56         virtual ModResult OnPreCommand(std::string &command, std::vector<std::string> &parameters, User *user, bool validated, const std::string &original_line)
  57         {
  58                 /* If the command doesnt appear to be valid, we dont want to mess with it. */
  59                 if (!validated)
  60                         return MOD_RES_PASSTHRU;
  61
  62                 if ((command == "LIST") && (ServerInstance->Time() < (user->signon+WaitTime)) && (!IS_OPER(user)))
  63                 {
  64                         /* Normally wouldnt be allowed here, are they exempt? */
  65                         for (std::vector<std::string>::iterator x = allowlist.begin(); x != allowlist.end(); x++)
  66                                 if (InspIRCd::Match(user->MakeHost(), *x, ascii_case_insensitive_map))
  67                                         return MOD_RES_PASSTHRU;
  68
  69                         /* Not exempt, BOOK EM DANNO! */
  70                         user->WriteServ("NOTICE %s :*** You cannot list within the first %lu seconds of connecting. Please try again later.",user->nick.c_str(), (unsigned long) WaitTime);
  71                         /* Some crap clients (read: mIRC, various java chat applets) muck up if they don't
  72                          * receive these numerics whenever they send LIST, so give them an empty LIST to mull over.
  73                          */
  74                         user->WriteNumeric(321, "%s Channel :Users Name",user->nick.c_str());
  75                         user->WriteNumeric(323, "%s :End of channel list.",user->nick.c_str());
  76                         return MOD_RES_DENY;
  77                 }
  78                 return MOD_RES_PASSTHRU;
  79         }
  80
  81         virtual void On005Numeric(std::string &output)
  82         {
  83                 output.append(" SECURELIST");
  84         }
  85
  86         void Prioritize()
  87         {
  88                 Module* safelist = ServerInstance->Modules->Find("m_safelist.so");
  89                 ServerInstance->Modules->SetPriority(this, I_OnPreCommand, PRIORITY_BEFORE, &safelist);
  90         }
  91
  92 };
  93
  94 MODULE_INIT(ModuleSecureList)