src/modules/m_check.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2010 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: Provides the /check command to retrieve information on a user, channel, or IP address */
  17
  18 /** Handle /CHECK
  19  */
  20 class CommandCheck : public Command
  21 {
  22  public:
  23         CommandCheck(Module* parent) : Command(parent,"CHECK", 1)
  24         {
  25                 flags_needed = 'o'; syntax = "<nickname>|<ip>|<hostmask>|<channel> <server>";
  26         }
  27
  28         std::string timestring(time_t time)
  29         {
  30                 char timebuf[60];
  31                 struct tm *mytime = gmtime(&time);
  32                 strftime(timebuf, 59, "%Y-%m-%d %H:%M:%S UTC (%s)", mytime);
  33                 return std::string(timebuf);
  34         }
  35
  36         void dumpExt(User* user, std::string checkstr, Extensible* ext)
  37         {
  38                 std::stringstream dumpkeys;
  39                 for(Extensible::ExtensibleStore::const_iterator i = ext->GetExtList().begin(); i != ext->GetExtList().end(); i++)
  40                 {
  41                         ExtensionItem* item = i->first;
  42                         std::string value = item->serialize(FORMAT_USER, ext, i->second);
  43                         if (!value.empty())
  44                                 user->SendText(checkstr + " meta:" + item->name + " " + value);
  45                         else if (!item->name.empty())
  46                                 dumpkeys << " " << item->name;
  47                 }
  48                 if (!dumpkeys.str().empty())
  49                         user->SendText(checkstr + " metadata", dumpkeys);
  50         }
  51
  52         CmdResult Handle (const std::vector<std::string> &parameters, User *user)
  53         {
  54                 if (parameters.size() > 1 && parameters[1] != ServerInstance->Config->ServerName.c_str())
  55                         return CMD_SUCCESS;
  56
  57                 User *targuser;
  58                 Channel *targchan;
  59                 std::string checkstr;
  60                 std::string chliststr;
  61
  62                 checkstr = std::string(":") + ServerInstance->Config->ServerName + " 304 " + std::string(user->nick) + " :CHECK";
  63
  64                 targuser = ServerInstance->FindNick(parameters[0]);
  65                 targchan = ServerInstance->FindChan(parameters[0]);
  66
  67                 /*
  68                  * Syntax of a /check reply:
  69                  *  :server.name 304 target :CHECK START <target>
  70                  *  :server.name 304 target :CHECK <field> <value>
  71                  *  :server.name 304 target :CHECK END
  72                  */
  73
  74                 user->SendText(checkstr + " START " + parameters[0]);
  75
  76                 if (targuser)
  77                 {
  78                         /* /check on a user */
  79                         user->SendText(checkstr + " nuh " + targuser->GetFullHost());
  80                         user->SendText(checkstr + " realnuh " + targuser->GetFullRealHost());
  81                         user->SendText(checkstr + " realname " + targuser->fullname);
  82                         user->SendText(checkstr + " modes +" + targuser->FormatModes());
  83                         user->SendText(checkstr + " snomasks +" + targuser->FormatNoticeMasks());
  84                         user->SendText(checkstr + " server " + targuser->server);
  85                         user->SendText(checkstr + " uid " + targuser->uuid);
  86                         user->SendText(checkstr + " signon " + timestring(targuser->signon));
  87                         user->SendText(checkstr + " nickts " + timestring(targuser->age));
  88                         if (IS_LOCAL(targuser))
  89                                 user->SendText(checkstr + " lastmsg " + timestring(targuser->idle_lastmsg));
  90
  91                         if (IS_AWAY(targuser))
  92                         {
  93                                 /* user is away */
  94                                 user->SendText(checkstr + " awaytime " + timestring(targuser->awaytime));
  95                                 user->SendText(checkstr + " awaymsg " + targuser->awaymsg);
  96                         }
  97
  98                         if (IS_OPER(targuser))
  99                         {
 100                                 OperInfo* oper = targuser->oper;
 101                                 /* user is an oper of type ____ */
 102                                 user->SendText(checkstr + " opertype " + oper->NameStr());
 103                                 if (IS_LOCAL(targuser))
 104                                 {
 105                                         std::string umodes;
 106                                         std::string cmodes;
 107                                         for(char c='A'; c < 'z'; c++)
 108                                         {
 109                                                 ModeHandler* mh = ServerInstance->Modes->FindMode(c, MODETYPE_USER);
 110                                                 if (mh && mh->NeedsOper() && oper->AllowedUserModes[c])
 111                                                         umodes.push_back(c);
 112                                                 mh = ServerInstance->Modes->FindMode(c, MODETYPE_CHANNEL);
 113                                                 if (mh && mh->NeedsOper() && oper->AllowedChanModes[c])
 114                                                         cmodes.push_back(c);
 115                                         }
 116                                         user->SendText(checkstr + " modeperms user=" + umodes + " channel=" + cmodes);
 117                                         std::string opcmds;
 118                                         for(std::set<std::string>::iterator i = oper->AllowedOperCommands.begin(); i != oper->AllowedOperCommands.end(); i++)
 119                                         {
 120                                                 opcmds.push_back(' ');
 121                                                 opcmds.append(*i);
 122                                         }
 123                                         std::stringstream opcmddump(opcmds);
 124                                         user->SendText(checkstr + " commandperms", opcmddump);
 125                                         std::string privs;
 126                                         for(std::set<std::string>::iterator i = oper->AllowedPrivs.begin(); i != oper->AllowedPrivs.end(); i++)
 127                                         {
 128                                                 privs.push_back(' ');
 129                                                 privs.append(*i);
 130                                         }
 131                                         std::stringstream privdump(privs);
 132                                         user->SendText(checkstr + " permissions", privdump);
 133                                 }
 134                         }
 135
 136                         LocalUser* loctarg = IS_LOCAL(targuser);
 137                         if (loctarg)
 138                         {
 139                                 user->SendText(checkstr + " clientaddr " + irc::sockets::satouser(loctarg->client_sa));
 140                                 user->SendText(checkstr + " serveraddr " + irc::sockets::satouser(loctarg->server_sa));
 141
 142                                 std::string classname = loctarg->GetClass()->name;
 143                                 if (!classname.empty())
 144                                         user->SendText(checkstr + " connectclass " + classname);
 145                         }
 146                         else
 147                                 user->SendText(checkstr + " onip " + targuser->GetIPString());
 148
 149                         for (UCListIter i = targuser->chans.begin(); i != targuser->chans.end(); i++)
 150                         {
 151                                 Channel* c = *i;
 152                                 chliststr.append(c->GetPrefixChar(targuser)).append(c->name).append(" ");
 153                         }
 154
 155                         std::stringstream dump(chliststr);
 156
 157                         user->SendText(checkstr + " onchans", dump);
 158
 159                         dumpExt(user, checkstr, targuser);
 160                 }
 161                 else if (targchan)
 162                 {
 163                         /* /check on a channel */
 164                         user->SendText(checkstr + " timestamp " + timestring(targchan->age));
 165
 166                         if (targchan->topic[0] != 0)
 167                         {
 168                                 /* there is a topic, assume topic related information exists */
 169                                 user->SendText(checkstr + " topic " + targchan->topic);
 170                                 user->SendText(checkstr + " topic_setby " + targchan->setby);
 171                                 user->SendText(checkstr + " topic_setat " + timestring(targchan->topicset));
 172                         }
 173
 174                         user->SendText(checkstr + " modes " + targchan->ChanModes(true));
 175                         user->SendText(checkstr + " membercount " + ConvToStr(targchan->GetUserCounter()));
 176
 177                         /* now the ugly bit, spool current members of a channel. :| */
 178
 179                         const UserMembList *ulist= targchan->GetUsers();
 180
 181                         /* note that unlike /names, we do NOT check +i vs in the channel */
 182                         for (UserMembCIter i = ulist->begin(); i != ulist->end(); i++)
 183                         {
 184                                 char tmpbuf[MAXBUF];
 185                                 /*
 186                                  * Unlike Asuka, I define a clone as coming from the same host. --w00t
 187                                  */
 188                                 snprintf(tmpbuf, MAXBUF, "%-3lu %s%s (%s@%s) %s ", ServerInstance->Users->GlobalCloneCount(i->first), targchan->GetAllPrefixChars(i->first), i->first->nick.c_str(), i->first->ident.c_str(), i->first->dhost.c_str(), i->first->fullname.c_str());
 189                                 user->SendText(checkstr + " member " + tmpbuf);
 190                         }
 191
 192                         irc::modestacker modestack(true);
 193                         std::string letter_b("b");
 194                         for(BanList::iterator b = targchan->bans.begin(); b != targchan->bans.end(); ++b)
 195                         {
 196                                 modestack.Push('b', b->data);
 197                         }
 198                         std::vector<std::string> stackresult;
 199                         std::vector<TranslateType> dummy;
 200                         while (modestack.GetStackedLine(stackresult))
 201                         {
 202                                 creator->ProtoSendMode(user, TYPE_CHANNEL, targchan, stackresult, dummy);
 203                                 stackresult.clear();
 204                         }
 205                         FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(targchan,creator,user));
 206                         dumpExt(user, checkstr, targchan);
 207                 }
 208                 else
 209                 {
 210                         /*  /check on an IP address, or something that doesn't exist */
 211                         long x = 0;
 212
 213                         /* hostname or other */
 214                         for (user_hash::const_iterator a = ServerInstance->Users->clientlist->begin(); a != ServerInstance->Users->clientlist->end(); a++)
 215                         {
 216                                 if (InspIRCd::Match(a->second->host, parameters[0], ascii_case_insensitive_map) || InspIRCd::Match(a->second->dhost, parameters[0], ascii_case_insensitive_map))
 217                                 {
 218                                         /* host or vhost matches mask */
 219                                         user->SendText(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 220                                 }
 221                                 /* IP address */
 222                                 else if (InspIRCd::MatchCIDR(a->second->GetIPString(), parameters[0]))
 223                                 {
 224                                         /* same IP. */
 225                                         user->SendText(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 226                                 }
 227                         }
 228
 229                         user->SendText(checkstr + " matches " + ConvToStr(x));
 230                 }
 231
 232                 user->SendText(checkstr + " END " + parameters[0]);
 233
 234                 return CMD_SUCCESS;
 235         }
 236
 237         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
 238         {
 239                 if (parameters.size() > 1)
 240                         return ROUTE_OPT_UCAST(parameters[1]);
 241                 return ROUTE_LOCALONLY;
 242         }
 243 };
 244
 245
 246 class ModuleCheck : public Module
 247 {
 248  private:
 249         CommandCheck mycommand;
 250  public:
 251         ModuleCheck() : mycommand(this)
 252         {
 253                 ServerInstance->AddCommand(&mycommand);
 254         }
 255
 256         ~ModuleCheck()
 257         {
 258         }
 259
 260         void ProtoSendMode(void* uv, TargetTypeFlags, void*, const std::vector<std::string>& result, const std::vector<TranslateType>&)
 261         {
 262                 User* user = (User*)uv;
 263                 std::string checkstr(":");
 264                 checkstr.append(ServerInstance->Config->ServerName);
 265                 checkstr.append(" 304 ");
 266                 checkstr.append(user->nick);
 267                 checkstr.append(" :CHECK modelist");
 268                 for(unsigned int i=0; i < result.size(); i++)
 269                 {
 270                         checkstr.append(" ");
 271                         checkstr.append(result[i]);
 272                 }
 273                 user->SendText(checkstr);
 274         }
 275
 276         Version GetVersion()
 277         {
 278                 return Version("CHECK command, view user/channel details", VF_VENDOR|VF_OPTCOMMON);
 279         }
 280 };
 281
 282 MODULE_INIT(ModuleCheck)