src/modes/cmode_k.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 #include "mode.h"
  16 #include "channels.h"
  17 #include "users.h"
  18 #include "modes/cmode_k.h"
  19
  20 ModeChannelKey::ModeChannelKey(InspIRCd* Instance) : ModeHandler(Instance, 'k', 1, 1, false, MODETYPE_CHANNEL, false)
  21 {
  22 }
  23
  24 ModePair ModeChannelKey::ModeSet(User*, User*, Channel* channel, const std::string &parameter)
  25 {
  26     if (channel->modes[CM_KEY])
  27     {
  28                 std::string ckey = channel->GetModeParameter('k');
  29                 return std::make_pair(true, ckey);
  30     }
  31     else
  32     {
  33                 return std::make_pair(false, parameter);
  34     }
  35 }
  36
  37 void ModeChannelKey::RemoveMode(Channel* channel, irc::modestacker* stack)
  38 {
  39         /** +k needs a parameter when being removed,
  40          * so we have a special-case RemoveMode here for it
  41          */
  42
  43         if (channel->IsModeSet('k'))
  44         {
  45                 if (stack)
  46                 {
  47                         stack->Push('k', channel->GetModeParameter('k'));
  48                 }
  49                 else
  50                 {
  51                         std::vector<std::string> parameters;
  52                         parameters.push_back(channel->name);
  53                         parameters.push_back("-k");
  54                         parameters.push_back(channel->GetModeParameter('k'));
  55                         ServerInstance->SendMode(parameters, ServerInstance->FakeClient);
  56                 }
  57         }
  58 }
  59
  60 void ModeChannelKey::RemoveMode(User*, irc::modestacker* stack)
  61 {
  62 }
  63
  64 bool ModeChannelKey::CheckTimeStamp(time_t, time_t, const std::string &their_param, const std::string &our_param, Channel*)
  65 {
  66         /* When TS is equal, the alphabetically later channel key wins */
  67         return (their_param < our_param);
  68 }
  69
  70 ModeAction ModeChannelKey::OnModeChange(User* source, User*, Channel* channel, std::string &parameter, bool adding, bool servermode)
  71 {
  72         bool exists = channel->IsModeSet('k');
  73         if (IS_LOCAL(source))
  74         {
  75                 if (exists == adding)
  76                         return MODEACTION_DENY;
  77                 if (exists && (parameter != channel->GetModeParameter('k')))
  78                 {
  79                         /* Key is currently set and the correct key wasnt given */
  80                         return MODEACTION_DENY;
  81                 }
  82         } else {
  83                 if (exists && adding && parameter == channel->GetModeParameter('k'))
  84                 {
  85                         /* no-op, don't show */
  86                         return MODEACTION_DENY;
  87                 }
  88         }
  89
  90         /* invalid keys */
  91         if (!parameter.length())
  92                 return MODEACTION_DENY;
  93
  94         if (parameter.rfind(' ') != std::string::npos)
  95                 return MODEACTION_DENY;
  96
  97         if (adding)
  98         {
  99                 std::string ckey;
 100                 ckey.assign(parameter, 0, 32);
 101                 parameter = ckey;
 102                 channel->SetModeParam('k', parameter);
 103         }
 104         else
 105         {
 106                 channel->SetModeParam('k', "");
 107         }
 108         return MODEACTION_ALLOW;
 109 }