src/modules/m_check.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: 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         std::set<std::string> meta_seen;
  24         CommandCheck (InspIRCd* Instance, Module* parent) : Command(Instance,parent,"CHECK", "o", 1)
  25         {
  26                 syntax = "<nickname>|<ip>|<hostmask>|<channel>";
  27         }
  28
  29         std::string timestring(time_t time)
  30         {
  31                 char timebuf[60];
  32                 struct tm *mytime = gmtime(&time);
  33                 strftime(timebuf, 59, "%Y-%m-%d %H:%M:%S UTC (%s)", mytime);
  34                 return std::string(timebuf);
  35         }
  36
  37         void dumpExtra(User* user, std::string checkstr, Extensible* ext)
  38         {
  39                 std::deque<std::string> extlist;
  40                 ext->GetExtList(extlist);
  41                 std::stringstream dumpkeys;
  42                 for(std::deque<std::string>::iterator i = extlist.begin(); i != extlist.end(); i++)
  43                 {
  44                         if (meta_seen.find(*i) == meta_seen.end())
  45                                 dumpkeys << " " << *i;
  46                 }
  47                 meta_seen.clear();
  48                 if (!dumpkeys.str().empty())
  49                         ServerInstance->DumpText(user,checkstr + " metadata ", dumpkeys);
  50         }
  51
  52         CmdResult Handle (const std::vector<std::string> &parameters, User *user)
  53         {
  54                 User *targuser;
  55                 Channel *targchan;
  56                 std::string checkstr;
  57                 std::string chliststr;
  58
  59                 checkstr = "304 " + std::string(user->nick) + " :CHECK";
  60
  61                 targuser = ServerInstance->FindNick(parameters[0]);
  62                 targchan = ServerInstance->FindChan(parameters[0]);
  63
  64                 /*
  65                  * Syntax of a /check reply:
  66                  *  :server.name 304 target :CHECK START <target>
  67                  *  :server.name 304 target :CHECK <field> <value>
  68                  *  :server.name 304 target :CHECK END
  69                  */
  70
  71                 user->WriteServ(checkstr + " START " + parameters[0]);
  72
  73                 if (targuser)
  74                 {
  75                         /* /check on a user */
  76                         user->WriteServ(checkstr + " nuh " + targuser->GetFullHost());
  77                         user->WriteServ(checkstr + " realnuh " + targuser->GetFullRealHost());
  78                         user->WriteServ(checkstr + " realname " + targuser->fullname);
  79                         user->WriteServ(checkstr + " modes +" + targuser->FormatModes());
  80                         user->WriteServ(checkstr + " snomasks +" + targuser->FormatNoticeMasks());
  81                         user->WriteServ(checkstr + " server " + targuser->server);
  82                         user->WriteServ(checkstr + " uid " + targuser->uuid);
  83                         user->WriteServ(checkstr + " signon " + timestring(targuser->signon));
  84                         user->WriteServ(checkstr + " nickts " + timestring(targuser->age));
  85                         if (IS_LOCAL(targuser))
  86                                 user->WriteServ(checkstr + " lastmsg " + timestring(targuser->idle_lastmsg));
  87
  88                         if (IS_AWAY(targuser))
  89                         {
  90                                 /* user is away */
  91                                 user->WriteServ(checkstr + " awaytime " + timestring(targuser->awaytime));
  92                                 user->WriteServ(checkstr + " awaymsg " + targuser->awaymsg);
  93                         }
  94
  95                         if (IS_OPER(targuser))
  96                         {
  97                                 /* user is an oper of type ____ */
  98                                 user->WriteServ(checkstr + " opertype " + irc::Spacify(targuser->oper.c_str()));
  99                         }
 100
 101                         if (IS_LOCAL(targuser))
 102                         {
 103                                 user->WriteServ(checkstr + " clientaddr " + irc::sockets::satouser(&targuser->client_sa));
 104                                 user->WriteServ(checkstr + " serveraddr " + irc::sockets::satouser(&targuser->server_sa));
 105
 106                                 std::string classname = targuser->GetClass()->name;
 107                                 if (!classname.empty())
 108                                         user->WriteServ(checkstr + " connectclass " + classname);
 109                         }
 110                         else
 111                                 user->WriteServ(checkstr + " onip " + targuser->GetIPString());
 112
 113                         chliststr = targuser->ChannelList(targuser);
 114                         std::stringstream dump(chliststr);
 115
 116                         ServerInstance->DumpText(user,checkstr + " onchans ", dump);
 117
 118                         FOREACH_MOD_I(ServerInstance,I_OnSyncUser,OnSyncUser(targuser,creator,(void*)user));
 119                         dumpExtra(user, checkstr, targuser);
 120                 }
 121                 else if (targchan)
 122                 {
 123                         /* /check on a channel */
 124                         user->WriteServ(checkstr + " timestamp " + timestring(targchan->age));
 125
 126                         if (targchan->topic[0] != 0)
 127                         {
 128                                 /* there is a topic, assume topic related information exists */
 129                                 user->WriteServ(checkstr + " topic " + targchan->topic);
 130                                 user->WriteServ(checkstr + " topic_setby " + targchan->setby);
 131                                 user->WriteServ(checkstr + " topic_setat " + timestring(targchan->topicset));
 132                         }
 133
 134                         user->WriteServ(checkstr + " modes " + targchan->ChanModes(true));
 135                         user->WriteServ(checkstr + " membercount " + ConvToStr(targchan->GetUserCounter()));
 136
 137                         /* now the ugly bit, spool current members of a channel. :| */
 138
 139                         CUList *ulist= targchan->GetUsers();
 140
 141                         /* note that unlike /names, we do NOT check +i vs in the channel */
 142                         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 143                         {
 144                                 char tmpbuf[MAXBUF];
 145                                 /*
 146                                  * Unlike Asuka, I define a clone as coming from the same host. --w00t
 147                                  */
 148                                 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());
 149                                 user->WriteServ(checkstr + " member " + tmpbuf);
 150                         }
 151
 152                         FOREACH_MOD_I(ServerInstance,I_OnSyncChannel,OnSyncChannel(targchan,creator,(void*)user));
 153                         dumpExtra(user, checkstr, targchan);
 154                 }
 155                 else
 156                 {
 157                         /*  /check on an IP address, or something that doesn't exist */
 158                         long x = 0;
 159
 160                         /* hostname or other */
 161                         for (user_hash::const_iterator a = ServerInstance->Users->clientlist->begin(); a != ServerInstance->Users->clientlist->end(); a++)
 162                         {
 163                                 if (InspIRCd::Match(a->second->host, parameters[0], ascii_case_insensitive_map) || InspIRCd::Match(a->second->dhost, parameters[0], ascii_case_insensitive_map))
 164                                 {
 165                                         /* host or vhost matches mask */
 166                                         user->WriteServ(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 167                                 }
 168                                 /* IP address */
 169                                 else if (InspIRCd::MatchCIDR(a->second->GetIPString(), parameters[0]))
 170                                 {
 171                                         /* same IP. */
 172                                         user->WriteServ(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 173                                 }
 174                         }
 175
 176                         user->WriteServ(checkstr + " matches " + ConvToStr(x));
 177                 }
 178
 179                 user->WriteServ(checkstr + " END " + parameters[0]);
 180
 181                 return CMD_LOCALONLY;
 182         }
 183 };
 184
 185
 186 class ModuleCheck : public Module
 187 {
 188  private:
 189         CommandCheck mycommand;
 190  public:
 191         ModuleCheck(InspIRCd* Me) : Module(Me), mycommand(Me, this)
 192         {
 193                 ServerInstance->AddCommand(&mycommand);
 194         }
 195
 196         virtual ~ModuleCheck()
 197         {
 198         }
 199
 200         virtual Version GetVersion()
 201         {
 202                 return Version("$Id$", VF_VENDOR, API_VERSION);
 203         }
 204
 205         virtual void ProtoSendMetaData(void* opaque, Extensible* target, const std::string& name, const std::string& value)
 206         {
 207                 User* user = static_cast<User*>(opaque);
 208                 user->WriteServ("304 " + std::string(user->nick) + " :CHECK meta:" + name + " " + value);
 209                 mycommand.meta_seen.insert(name);
 210         }
 211
 212         virtual std::string ProtoTranslate(Extensible* item)
 213         {
 214                 User* u = dynamic_cast<User*>(item);
 215                 Channel* c = dynamic_cast<Channel*>(item);
 216                 if (u)
 217                         return u->nick;
 218                 if (c)
 219                         return c->name;
 220                 return "?";
 221         }
 222 };
 223
 224 MODULE_INIT(ModuleCheck)