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