src/modules/m_cban.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 "xline.h"
  16
  17 /* $ModDesc: Gives /cban, aka C:lines. Think Q:lines, for channels. */
  18
  19 /** Holds a CBAN item
  20  */
  21 class CBan : public XLine
  22 {
  23 public:
  24         irc::string matchtext;
  25
  26         CBan(InspIRCd* Instance, time_t s_time, long d, std::string src, std::string re, std::string ch)
  27                 : XLine(Instance, s_time, d, src, re, "CBAN")
  28         {
  29                 this->matchtext = ch.c_str();
  30         }
  31
  32         ~CBan()
  33         {
  34         }
  35
  36         // XXX I shouldn't have to define this
  37         bool Matches(User *u)
  38         {
  39                 return false;
  40         }
  41
  42         bool Matches(const std::string &s)
  43         {
  44                 if (matchtext == s)
  45                         return true;
  46                 return false;
  47         }
  48
  49         void DisplayExpiry()
  50         {
  51                 ServerInstance->SNO->WriteToSnoMask('x',"Removing expired CBan %s (set by %s %ld seconds ago)",
  52                         this->matchtext.c_str(), this->source.c_str(), (long int)(ServerInstance->Time() - this->set_time));
  53         }
  54
  55         const char* Displayable()
  56         {
  57                 return matchtext.c_str();
  58         }
  59 };
  60
  61 /** An XLineFactory specialized to generate cban pointers
  62  */
  63 class CBanFactory : public XLineFactory
  64 {
  65  public:
  66         CBanFactory(InspIRCd* Instance) : XLineFactory(Instance, "CBAN") { }
  67
  68         /** Generate a shun
  69         */
  70         XLine* Generate(time_t set_time, long duration, std::string source, std::string reason, std::string xline_specific_mask)
  71         {
  72                 return new CBan(ServerInstance, set_time, duration, source, reason, xline_specific_mask);
  73         }
  74
  75         bool AutoApplyToUserList(XLine *x)
  76         {
  77                 return false; // No, we apply to channels.
  78         }
  79 };
  80
  81 /** Handle /CBAN
  82  */
  83 class CommandCBan : public Command
  84 {
  85  public:
  86         CommandCBan(Module* Creator) : Command(Creator, "CBAN", 1, 3)
  87         {
  88                 flags_needed = 'o'; this->syntax = "<channel> [<duration> :<reason>]";
  89                 TRANSLATE4(TR_TEXT,TR_TEXT,TR_TEXT,TR_END);
  90         }
  91
  92         CmdResult Handle(const std::vector<std::string> &parameters, User *user)
  93         {
  94                 /* syntax: CBAN #channel time :reason goes here */
  95                 /* 'time' is a human-readable timestring, like 2d3h2s. */
  96
  97                 if (parameters.size() == 1)
  98                 {
  99                         if (ServerInstance->XLines->DelLine(parameters[0].c_str(), "CBAN", user))
 100                         {
 101                                 ServerInstance->SNO->WriteGlobalSno('x', "%s removed CBan on %s.",user->nick.c_str(),parameters[0].c_str());
 102                         }
 103                         else
 104                         {
 105                                 user->WriteServ("NOTICE %s :*** CBan %s not found in list, try /stats C.",user->nick.c_str(),parameters[0].c_str());
 106                         }
 107
 108                         return CMD_SUCCESS;
 109                 }
 110                 else if (parameters.size() >= 2)
 111                 {
 112                         // Adding - XXX todo make this respect <insane> tag perhaps..
 113                         long duration = ServerInstance->Duration(parameters[1]);
 114                         CBan *r = NULL;
 115                         const char *reason = (parameters.size() > 2) ? parameters[2].c_str() : "No reason supplied";
 116
 117                         try
 118                         {
 119                                 r = new CBan(ServerInstance, ServerInstance->Time(), duration, user->nick.c_str(), reason, parameters[0].c_str());
 120                         }
 121                         catch (...)
 122                         {
 123                                 ; // Do nothing. If we get here, the regex was fucked up, and they already got told it fucked up.
 124                         }
 125
 126                         if (r)
 127                         {
 128                                 if (ServerInstance->XLines->AddLine(r, user))
 129                                 {
 130                                         if (!duration)
 131                                         {
 132                                                 ServerInstance->SNO->WriteGlobalSno('x', "%s added permanent CBan for %s: %s", user->nick.c_str(), parameters[0].c_str(), reason);
 133                                         }
 134                                         else
 135                                         {
 136                                                 time_t c_requires_crap = duration + ServerInstance->Time();
 137                                                 ServerInstance->SNO->WriteGlobalSno('x', "%s added timed CBan for %s, expires on %s: %s", user->nick.c_str(), parameters[0].c_str(), ServerInstance->TimeString(c_requires_crap).c_str(), reason);
 138                                         }
 139
 140                                         ServerInstance->XLines->ApplyLines();
 141                                 }
 142                                 else
 143                                 {
 144                                         delete r;
 145                                         user->WriteServ("NOTICE %s :*** CBan for %s already exists", user->nick.c_str(), parameters[0].c_str());
 146                                 }
 147                         }
 148                 }
 149
 150                 return CMD_FAILURE;
 151         }
 152
 153         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
 154         {
 155                 return ROUTE_BROADCAST;
 156         }
 157 };
 158
 159 class ModuleCBan : public Module
 160 {
 161         CommandCBan mycommand;
 162         CBanFactory f;
 163
 164  public:
 165         ModuleCBan(InspIRCd* Me) : Module(Me), mycommand(this), f(Me)
 166         {
 167                 ServerInstance->XLines->RegisterFactory(&f);
 168
 169                 ServerInstance->AddCommand(&mycommand);
 170                 Implementation eventlist[] = { I_OnUserPreJoin, I_OnStats };
 171                 ServerInstance->Modules->Attach(eventlist, this, 2);
 172         }
 173
 174         virtual ~ModuleCBan()
 175         {
 176                 ServerInstance->XLines->DelAll("CBAN");
 177                 ServerInstance->XLines->UnregisterFactory(&f);
 178         }
 179
 180         virtual ModResult OnStats(char symbol, User* user, string_list &out)
 181         {
 182                 if (symbol != 'C')
 183                         return MOD_RES_PASSTHRU;
 184
 185                 ServerInstance->XLines->InvokeStats("CBAN", 210, user, out);
 186                 return MOD_RES_DENY;
 187         }
 188
 189         virtual ModResult OnUserPreJoin(User *user, Channel *chan, const char *cname, std::string &privs, const std::string &keygiven)
 190         {
 191                 XLine *rl = ServerInstance->XLines->MatchesLine("CBAN", cname);
 192
 193                 if (rl)
 194                 {
 195                         // Channel is banned.
 196                         user->WriteServ( "384 %s %s :Cannot join channel, CBANed (%s)", user->nick.c_str(), cname, rl->reason.c_str());
 197                         ServerInstance->SNO->WriteToSnoMask('a', "%s tried to join %s which is CBANed (%s)",
 198                                  user->nick.c_str(), cname, rl->reason.c_str());
 199                         ServerInstance->PI->SendSNONotice("A", user->nick + " tried to join " + std::string(cname) + " which is CBANed (" + rl->reason + ")");
 200                         return MOD_RES_DENY;
 201                 }
 202
 203                 return MOD_RES_PASSTHRU;
 204         }
 205
 206         virtual Version GetVersion()
 207         {
 208                 return Version("Gives /cban, aka C:lines. Think Q:lines, for channels.", VF_COMMON | VF_VENDOR, API_VERSION);
 209         }
 210 };
 211
 212 MODULE_INIT(ModuleCBan)
 213