src/modules/m_check.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   6  *   Copyright (C) 2006-2007 Robin Burchell <robin+git@viroteck.net>
   7  *   Copyright (C) 2006 Craig Edwards <craigedwards@brainbox.cc>
   8  *
   9  * This file is part of InspIRCd.  InspIRCd is free software: you can
  10  * redistribute it and/or modify it under the terms of the GNU General Public
  11  * License as published by the Free Software Foundation, version 2.
  12  *
  13  * This program is distributed in the hope that it will be useful, but WITHOUT
  14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  15  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  16  * details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22
  23 #include "inspircd.h"
  24 #include "listmode.h"
  25
  26 /** Handle /CHECK
  27  */
  28 class CommandCheck : public Command
  29 {
  30         ChanModeReference ban;
  31         UserModeReference snomaskmode;
  32
  33         std::string GetSnomasks(User* user)
  34         {
  35                 std::string ret;
  36                 if (snomaskmode)
  37                         ret = snomaskmode->GetUserParameter(user);
  38
  39                 if (ret.empty())
  40                         ret = "+";
  41                 return ret;
  42         }
  43
  44  public:
  45         CommandCheck(Module* parent)
  46                 : Command(parent,"CHECK", 1)
  47                 , ban(parent, "ban")
  48                 , snomaskmode(parent, "snomask")
  49         {
  50                 flags_needed = 'o'; syntax = "<nickname>|<ip>|<hostmask>|<channel> <server>";
  51         }
  52
  53         std::string timestring(time_t time)
  54         {
  55                 char timebuf[60];
  56                 struct tm *mytime = gmtime(&time);
  57                 strftime(timebuf, 59, "%Y-%m-%d %H:%M:%S UTC (%s)", mytime);
  58                 return std::string(timebuf);
  59         }
  60
  61         void dumpExt(User* user, const std::string& checkstr, Extensible* ext)
  62         {
  63                 std::stringstream dumpkeys;
  64                 for(Extensible::ExtensibleStore::const_iterator i = ext->GetExtList().begin(); i != ext->GetExtList().end(); i++)
  65                 {
  66                         ExtensionItem* item = i->first;
  67                         std::string value = item->serialize(FORMAT_USER, ext, i->second);
  68                         if (!value.empty())
  69                                 user->SendText(checkstr + " meta:" + item->name + " " + value);
  70                         else if (!item->name.empty())
  71                                 dumpkeys << " " << item->name;
  72                 }
  73                 if (!dumpkeys.str().empty())
  74                         user->SendText(checkstr + " metadata", dumpkeys);
  75         }
  76
  77         CmdResult Handle (const std::vector<std::string> &parameters, User *user)
  78         {
  79                 if (parameters.size() > 1 && parameters[1] != ServerInstance->Config->ServerName.c_str())
  80                         return CMD_SUCCESS;
  81
  82                 User *targuser;
  83                 Channel *targchan;
  84                 std::string checkstr;
  85                 std::string chliststr;
  86
  87                 checkstr = ":" + ServerInstance->Config->ServerName + " 304 " + user->nick + " :CHECK";
  88
  89                 targuser = ServerInstance->FindNick(parameters[0]);
  90                 targchan = ServerInstance->FindChan(parameters[0]);
  91
  92                 /*
  93                  * Syntax of a /check reply:
  94                  *  :server.name 304 target :CHECK START <target>
  95                  *  :server.name 304 target :CHECK <field> <value>
  96                  *  :server.name 304 target :CHECK END
  97                  */
  98
  99                 user->SendText(checkstr + " START " + parameters[0]);
 100
 101                 if (targuser)
 102                 {
 103                         LocalUser* loctarg = IS_LOCAL(targuser);
 104                         /* /check on a user */
 105                         user->SendText(checkstr + " nuh " + targuser->GetFullHost());
 106                         user->SendText(checkstr + " realnuh " + targuser->GetFullRealHost());
 107                         user->SendText(checkstr + " realname " + targuser->fullname);
 108                         user->SendText(checkstr + " modes +" + targuser->FormatModes());
 109                         user->SendText(checkstr + " snomasks " + GetSnomasks(targuser));
 110                         user->SendText(checkstr + " server " + targuser->server);
 111                         user->SendText(checkstr + " uid " + targuser->uuid);
 112                         user->SendText(checkstr + " signon " + timestring(targuser->signon));
 113                         user->SendText(checkstr + " nickts " + timestring(targuser->age));
 114                         if (loctarg)
 115                                 user->SendText(checkstr + " lastmsg " + timestring(loctarg->idle_lastmsg));
 116
 117                         if (targuser->IsAway())
 118                         {
 119                                 /* user is away */
 120                                 user->SendText(checkstr + " awaytime " + timestring(targuser->awaytime));
 121                                 user->SendText(checkstr + " awaymsg " + targuser->awaymsg);
 122                         }
 123
 124                         if (targuser->IsOper())
 125                         {
 126                                 OperInfo* oper = targuser->oper;
 127                                 /* user is an oper of type ____ */
 128                                 user->SendText(checkstr + " opertype " + oper->name);
 129                                 if (loctarg)
 130                                 {
 131                                         std::string umodes;
 132                                         std::string cmodes;
 133                                         for(char c='A'; c < 'z'; c++)
 134                                         {
 135                                                 ModeHandler* mh = ServerInstance->Modes->FindMode(c, MODETYPE_USER);
 136                                                 if (mh && mh->NeedsOper() && loctarg->HasModePermission(c, MODETYPE_USER))
 137                                                         umodes.push_back(c);
 138                                                 mh = ServerInstance->Modes->FindMode(c, MODETYPE_CHANNEL);
 139                                                 if (mh && mh->NeedsOper() && loctarg->HasModePermission(c, MODETYPE_CHANNEL))
 140                                                         cmodes.push_back(c);
 141                                         }
 142                                         user->SendText(checkstr + " modeperms user=" + umodes + " channel=" + cmodes);
 143                                         std::string opcmds;
 144                                         for(std::set<std::string>::iterator i = oper->AllowedOperCommands.begin(); i != oper->AllowedOperCommands.end(); i++)
 145                                         {
 146                                                 opcmds.push_back(' ');
 147                                                 opcmds.append(*i);
 148                                         }
 149                                         std::stringstream opcmddump(opcmds);
 150                                         user->SendText(checkstr + " commandperms", opcmddump);
 151                                         std::string privs;
 152                                         for(std::set<std::string>::iterator i = oper->AllowedPrivs.begin(); i != oper->AllowedPrivs.end(); i++)
 153                                         {
 154                                                 privs.push_back(' ');
 155                                                 privs.append(*i);
 156                                         }
 157                                         std::stringstream privdump(privs);
 158                                         user->SendText(checkstr + " permissions", privdump);
 159                                 }
 160                         }
 161
 162                         if (loctarg)
 163                         {
 164                                 user->SendText(checkstr + " clientaddr " + irc::sockets::satouser(loctarg->client_sa));
 165                                 user->SendText(checkstr + " serveraddr " + irc::sockets::satouser(loctarg->server_sa));
 166
 167                                 std::string classname = loctarg->GetClass()->name;
 168                                 if (!classname.empty())
 169                                         user->SendText(checkstr + " connectclass " + classname);
 170                         }
 171                         else
 172                                 user->SendText(checkstr + " onip " + targuser->GetIPString());
 173
 174                         for (UCListIter i = targuser->chans.begin(); i != targuser->chans.end(); i++)
 175                         {
 176                                 Channel* c = *i;
 177                                 chliststr.append(c->GetPrefixChar(targuser)).append(c->name).append(" ");
 178                         }
 179
 180                         std::stringstream dump(chliststr);
 181
 182                         user->SendText(checkstr + " onchans", dump);
 183
 184                         dumpExt(user, checkstr, targuser);
 185                 }
 186                 else if (targchan)
 187                 {
 188                         /* /check on a channel */
 189                         user->SendText(checkstr + " timestamp " + timestring(targchan->age));
 190
 191                         if (targchan->topic[0] != 0)
 192                         {
 193                                 /* there is a topic, assume topic related information exists */
 194                                 user->SendText(checkstr + " topic " + targchan->topic);
 195                                 user->SendText(checkstr + " topic_setby " + targchan->setby);
 196                                 user->SendText(checkstr + " topic_setat " + timestring(targchan->topicset));
 197                         }
 198
 199                         user->SendText(checkstr + " modes " + targchan->ChanModes(true));
 200                         user->SendText(checkstr + " membercount " + ConvToStr(targchan->GetUserCounter()));
 201
 202                         /* now the ugly bit, spool current members of a channel. :| */
 203
 204                         const UserMembList *ulist= targchan->GetUsers();
 205
 206                         /* note that unlike /names, we do NOT check +i vs in the channel */
 207                         for (UserMembCIter i = ulist->begin(); i != ulist->end(); i++)
 208                         {
 209                                 /*
 210                                  * Unlike Asuka, I define a clone as coming from the same host. --w00t
 211                                  */
 212                                 user->SendText("%s member %-3lu %s%s (%s@%s) %s ",
 213                                         checkstr.c_str(), ServerInstance->Users->GlobalCloneCount(i->first),
 214                                         targchan->GetAllPrefixChars(i->first), i->first->nick.c_str(),
 215                                         i->first->ident.c_str(), i->first->dhost.c_str(), i->first->fullname.c_str());
 216                         }
 217
 218                         // We know that the mode handler for bans is in the core and is derived from ListModeBase
 219                         ListModeBase* banlm = static_cast<ListModeBase*>(*ban);
 220                         banlm->DoSyncChannel(targchan, creator, user);
 221
 222                         // Show other listmodes as well
 223                         FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(targchan,creator,user));
 224                         dumpExt(user, checkstr, targchan);
 225                 }
 226                 else
 227                 {
 228                         /*  /check on an IP address, or something that doesn't exist */
 229                         long x = 0;
 230
 231                         /* hostname or other */
 232                         for (user_hash::const_iterator a = ServerInstance->Users->clientlist->begin(); a != ServerInstance->Users->clientlist->end(); a++)
 233                         {
 234                                 if (InspIRCd::Match(a->second->host, parameters[0], ascii_case_insensitive_map) || InspIRCd::Match(a->second->dhost, parameters[0], ascii_case_insensitive_map))
 235                                 {
 236                                         /* host or vhost matches mask */
 237                                         user->SendText(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost() + " " + a->second->GetIPString() + " " + a->second->fullname);
 238                                 }
 239                                 /* IP address */
 240                                 else if (InspIRCd::MatchCIDR(a->second->GetIPString(), parameters[0]))
 241                                 {
 242                                         /* same IP. */
 243                                         user->SendText(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost() + " " + a->second->GetIPString() + " " + a->second->fullname);
 244                                 }
 245                         }
 246
 247                         user->SendText(checkstr + " matches " + ConvToStr(x));
 248                 }
 249
 250                 user->SendText(checkstr + " END " + parameters[0]);
 251
 252                 return CMD_SUCCESS;
 253         }
 254
 255         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
 256         {
 257                 if (parameters.size() > 1)
 258                         return ROUTE_OPT_UCAST(parameters[1]);
 259                 return ROUTE_LOCALONLY;
 260         }
 261 };
 262
 263 class ModuleCheck : public Module
 264 {
 265         CommandCheck mycommand;
 266  public:
 267         ModuleCheck() : mycommand(this)
 268         {
 269         }
 270
 271         void init() CXX11_OVERRIDE
 272         {
 273                 ServerInstance->Modules->AddService(mycommand);
 274         }
 275
 276         void ProtoSendMode(void* uv, TargetTypeFlags, void*, const std::vector<std::string>& result, const std::vector<TranslateType>&)
 277         {
 278                 User* user = (User*)uv;
 279                 std::string checkstr(":");
 280                 checkstr.append(ServerInstance->Config->ServerName);
 281                 checkstr.append(" 304 ");
 282                 checkstr.append(user->nick);
 283                 checkstr.append(" :CHECK modelist");
 284                 for(unsigned int i=0; i < result.size(); i++)
 285                 {
 286                         checkstr.append(" ");
 287                         checkstr.append(result[i]);
 288                 }
 289                 user->SendText(checkstr);
 290         }
 291
 292         Version GetVersion() CXX11_OVERRIDE
 293         {
 294                 return Version("CHECK command, view user, channel, IP address or hostname information", VF_VENDOR|VF_OPTCOMMON);
 295         }
 296 };
 297
 298 MODULE_INIT(ModuleCheck)