src/modules/m_check.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include "users.h"
  20 #include "channels.h"
  21 #include "modules.h"
  22 #include "message.h"
  23 #include "commands.h"
  24 #include "inspircd.h"
  25 #include "helperfuncs.h"
  26
  27 /* $ModDesc: Provides the /check command to retrieve information on a user, channel, or IP address */
  28
  29 extern user_hash clientlist;
  30 extern bool match(const char *, const char *);
  31
  32 static Server *Srv;
  33
  34 class cmd_check : public command_t
  35 {
  36  public:
  37         cmd_check() : command_t("CHECK", 'o', 1)
  38         {
  39                 this->source = "m_check.so";
  40         }
  41
  42         void Handle (char **parameters, int pcnt, userrec *user)
  43         {
  44                 userrec *targuser;
  45                 chanrec *targchan;
  46                 std::string checkstr;
  47                 std::string chliststr;
  48
  49                 char timebuf[60];
  50                 struct tm *mytime;
  51
  52
  53                 checkstr = "304 " + std::string(user->nick) + " :CHECK";
  54
  55                 targuser = Srv->FindNick(std::string(parameters[0]));
  56                 targchan = Srv->FindChannel(std::string(parameters[0]));
  57
  58                 /*
  59                  * Syntax of a /check reply:
  60                  *  :server.name 304 target :CHECK START <target>
  61                  *  :server.name 304 target :CHECK <field> <value>
  62                  *  :server.name 304 target :CHECK END
  63                  */
  64
  65                 Srv->SendTo(NULL, user, checkstr + " START " + parameters[0]);
  66
  67                 if (targuser)
  68                 {
  69                         /* /check on a user */
  70                         Srv->SendTo(NULL, user, checkstr + " nuh " + targuser->GetFullHost());
  71                         Srv->SendTo(NULL, user, checkstr + " realnuh " + targuser->GetFullRealHost());
  72                         Srv->SendTo(NULL, user, checkstr + " realname " + targuser->fullname);
  73                         Srv->SendTo(NULL, user, checkstr + " modes +" + targuser->FormatModes());
  74                         Srv->SendTo(NULL, user, checkstr + " server " + targuser->server);
  75                         if (targuser->awaymsg[0] != 0)
  76                         {
  77                                 /* user is away */
  78                                 Srv->SendTo(NULL, user, checkstr + " awaymsg " + targuser->awaymsg);
  79                         }
  80                         if (targuser->oper[0] != 0)
  81                         {
  82                                 /* user is an oper of type ____ */
  83                                 Srv->SendTo(NULL, user, checkstr + " opertype " + targuser->oper);
  84                         }
  85                         if (IS_LOCAL(targuser))
  86                         {
  87                                 /* port information is only held for a local user! */
  88                                 Srv->SendTo(NULL, user, checkstr + " onport " + ConvToStr(targuser->port));
  89                         }
  90
  91                         chliststr = chlist(targuser, targuser);
  92                         std::stringstream dump(chliststr);
  93
  94                         Srv->DumpText(user,checkstr + " onchans ", dump);
  95                 }
  96                 else if (targchan)
  97                 {
  98                         /* /check on a channel */
  99                         time_t creation_time = targchan->created;
 100                         time_t topic_time = targchan->topicset;
 101
 102                         mytime = gmtime(&creation_time);
 103                         strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime);
 104                         Srv->SendTo(NULL, user, checkstr + " created " + timebuf);
 105
 106                         if (targchan->topic[0] != 0)
 107                         {
 108                                 /* there is a topic, assume topic related information exists */
 109                                 Srv->SendTo(NULL, user, checkstr + " topic " + targchan->topic);
 110                                 Srv->SendTo(NULL, user, checkstr + " topic_setby " + targchan->setby);
 111                                 mytime = gmtime(&topic_time);
 112                                 strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime);
 113                                 Srv->SendTo(NULL, user, checkstr + " topic_setat " + timebuf);
 114                         }
 115
 116                         Srv->SendTo(NULL, user, checkstr + " modes " + chanmodes(targchan, true));
 117                         Srv->SendTo(NULL, user, checkstr + " membercount " + ConvToStr(targchan->GetUserCounter()));
 118
 119                         /* now the ugly bit, spool current members of a channel. :| */
 120
 121                         CUList *ulist= targchan->GetUsers();
 122
 123                         /* note that unlike /names, we do NOT check +i vs in the channel */
 124                         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 125                         {
 126                                 char list[MAXBUF];
 127                                 char tmpbuf[MAXBUF];
 128                                 char* ptr = list;
 129                                 int flags = cflags(i->second, targchan);
 130                                 /*
 131                                  * find how many connections from this user's IP -- unlike Asuka,
 132                                  * I define a clone as coming from the same host. --w00t
 133                                  */
 134                                 sprintf(ptr, "%lu    ", FindMatchingGlobal(i->second));
 135
 136                                 if (flags & UCMODE_OP)
 137                                 {
 138                                         strcat(ptr, "@");
 139                                 }
 140
 141                                 if (flags & UCMODE_HOP)
 142                                 {
 143                                         strcat(ptr, "%");
 144                                 }
 145
 146                                 if (flags & UCMODE_VOICE)
 147                                 {
 148                                         strcat(ptr, "+");
 149                                 }
 150
 151                                 sprintf(tmpbuf, "%s (%s@%s) %s ", i->second->nick, i->second->ident, i->second->dhost, i->second->fullname);
 152                                 strcat(ptr, tmpbuf);
 153
 154                                 Srv->SendTo(NULL, user, checkstr + " member " + ptr);
 155                         }
 156                 }
 157                 else
 158                 {
 159                         /*  /check on an IP address, or something that doesn't exist */
 160                         struct sockaddr_in addr;
 161                         long x = 0;
 162
 163                         if (inet_aton(parameters[0], &addr.sin_addr) == 0)
 164                         {
 165                                 /* hostname or other */
 166                                 for (user_hash::const_iterator a = clientlist.begin(); a != clientlist.end(); a++)
 167                                 {
 168                                         if (match(a->second->host, parameters[0]) || match(a->second->dhost, parameters[0]))
 169                                         {
 170                                                 /* host or vhost matches mask */
 171                                                 Srv->SendTo(NULL, user, checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 172                                         }
 173                                 }
 174                         }
 175                         else
 176                         {
 177                                 /* IP address */
 178                                 for (user_hash::const_iterator a = clientlist.begin(); a != clientlist.end(); a++)
 179                                 {
 180                                         if (addr.sin_addr.s_addr == a->second->ip4.s_addr)
 181                                         {
 182                                                 /* same IP. */
 183                                                 Srv->SendTo(NULL, user, checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 184                                         }
 185                                 }
 186                         }
 187
 188                         Srv->SendTo(NULL, user, checkstr + " matches " + ConvToStr(x));
 189                 }
 190
 191                 Srv->SendTo(NULL, user, checkstr + " END " + std::string(parameters[0]));
 192         }
 193 };
 194
 195
 196 class ModuleCheck : public Module
 197 {
 198  private:
 199         cmd_check *mycommand;
 200  public:
 201         ModuleCheck(Server* Me) : Module::Module(Me)
 202         {
 203                 Srv = Me;
 204                 mycommand = new cmd_check();
 205                 Srv->AddCommand(mycommand);
 206         }
 207
 208         virtual ~ModuleCheck()
 209         {
 210         }
 211
 212         virtual Version GetVersion()
 213         {
 214                 return Version(1, 0, 0, 0, VF_VENDOR);
 215         }
 216
 217         void Implements(char* List)
 218         {
 219                 /* we don't hook anything, nothing required */
 220         }
 221
 222 };
 223
 224
 225
 226 class ModuleCheckFactory : public ModuleFactory
 227 {
 228  public:
 229         ModuleCheckFactory()
 230         {
 231         }
 232
 233         ~ModuleCheckFactory()
 234         {
 235         }
 236
 237         virtual Module * CreateModule(Server* Me)
 238         {
 239                 return new ModuleCheck(Me);
 240         }
 241
 242 };
 243
 244 extern "C" void * init_module( void )
 245 {
 246         return new ModuleCheckFactory;
 247 }
 248