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                 syntax = "<nickname>|<ip>|<hostmask>|<channel>";
  41         }
  42
  43         void Handle (const char** parameters, int pcnt, userrec *user)
  44         {
  45                 userrec *targuser;
  46                 chanrec *targchan;
  47                 std::string checkstr;
  48                 std::string chliststr;
  49
  50                 char timebuf[60];
  51                 struct tm *mytime;
  52
  53
  54                 checkstr = "304 " + std::string(user->nick) + " :CHECK";
  55
  56                 targuser = Srv->FindNick(std::string(parameters[0]));
  57                 targchan = Srv->FindChannel(std::string(parameters[0]));
  58
  59                 /*
  60                  * Syntax of a /check reply:
  61                  *  :server.name 304 target :CHECK START <target>
  62                  *  :server.name 304 target :CHECK <field> <value>
  63                  *  :server.name 304 target :CHECK END
  64                  */
  65
  66                 Srv->SendTo(NULL, user, checkstr + " START " + parameters[0]);
  67
  68                 if (targuser)
  69                 {
  70                         /* /check on a user */
  71                         Srv->SendTo(NULL, user, checkstr + " nuh " + targuser->GetFullHost());
  72                         Srv->SendTo(NULL, user, checkstr + " realnuh " + targuser->GetFullRealHost());
  73                         Srv->SendTo(NULL, user, checkstr + " realname " + targuser->fullname);
  74                         Srv->SendTo(NULL, user, checkstr + " modes +" + targuser->FormatModes());
  75                         Srv->SendTo(NULL, user, checkstr + " server " + targuser->server);
  76                         if (targuser->awaymsg[0] != 0)
  77                         {
  78                                 /* user is away */
  79                                 Srv->SendTo(NULL, user, checkstr + " awaymsg " + targuser->awaymsg);
  80                         }
  81                         if (targuser->oper[0] != 0)
  82                         {
  83                                 /* user is an oper of type ____ */
  84                                 Srv->SendTo(NULL, user, checkstr + " opertype " + targuser->oper);
  85                         }
  86                         if (IS_LOCAL(targuser))
  87                         {
  88                                 /* port information is only held for a local user! */
  89                                 Srv->SendTo(NULL, user, checkstr + " onport " + ConvToStr(targuser->port));
  90                         }
  91
  92                         chliststr = chlist(targuser, targuser);
  93                         std::stringstream dump(chliststr);
  94
  95                         Srv->DumpText(user,checkstr + " onchans ", dump);
  96                 }
  97                 else if (targchan)
  98                 {
  99                         /* /check on a channel */
 100                         time_t creation_time = targchan->created;
 101                         time_t topic_time = targchan->topicset;
 102
 103                         mytime = gmtime(&creation_time);
 104                         strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime);
 105                         Srv->SendTo(NULL, user, checkstr + " created " + timebuf);
 106
 107                         if (targchan->topic[0] != 0)
 108                         {
 109                                 /* there is a topic, assume topic related information exists */
 110                                 Srv->SendTo(NULL, user, checkstr + " topic " + targchan->topic);
 111                                 Srv->SendTo(NULL, user, checkstr + " topic_setby " + targchan->setby);
 112                                 mytime = gmtime(&topic_time);
 113                                 strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime);
 114                                 Srv->SendTo(NULL, user, checkstr + " topic_setat " + timebuf);
 115                         }
 116
 117                         Srv->SendTo(NULL, user, checkstr + " modes " + chanmodes(targchan, true));
 118                         Srv->SendTo(NULL, user, checkstr + " membercount " + ConvToStr(targchan->GetUserCounter()));
 119
 120                         /* now the ugly bit, spool current members of a channel. :| */
 121
 122                         CUList *ulist= targchan->GetUsers();
 123
 124                         /* note that unlike /names, we do NOT check +i vs in the channel */
 125                         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
 126                         {
 127                                 char list[MAXBUF];
 128                                 char tmpbuf[MAXBUF];
 129                                 char* ptr = list;
 130                                 int flags = cflags(i->second, targchan);
 131                                 /*
 132                                  * find how many connections from this user's IP -- unlike Asuka,
 133                                  * I define a clone as coming from the same host. --w00t
 134                                  */
 135                                 sprintf(ptr, "%lu    ", FindMatchingGlobal(i->second));
 136
 137                                 if (flags & UCMODE_OP)
 138                                 {
 139                                         strcat(ptr, "@");
 140                                 }
 141
 142                                 if (flags & UCMODE_HOP)
 143                                 {
 144                                         strcat(ptr, "%");
 145                                 }
 146
 147                                 if (flags & UCMODE_VOICE)
 148                                 {
 149                                         strcat(ptr, "+");
 150                                 }
 151
 152                                 sprintf(tmpbuf, "%s (%s@%s) %s ", i->second->nick, i->second->ident, i->second->dhost, i->second->fullname);
 153                                 strcat(ptr, tmpbuf);
 154
 155                                 Srv->SendTo(NULL, user, checkstr + " member " + ptr);
 156                         }
 157                 }
 158                 else
 159                 {
 160                         /*  /check on an IP address, or something that doesn't exist */
 161                         struct sockaddr_in addr;
 162                         long x = 0;
 163
 164                         if (inet_aton(parameters[0], &addr.sin_addr) == 0)
 165                         {
 166                                 /* hostname or other */
 167                                 for (user_hash::const_iterator a = clientlist.begin(); a != clientlist.end(); a++)
 168                                 {
 169                                         if (match(a->second->host, parameters[0]) || match(a->second->dhost, parameters[0]))
 170                                         {
 171                                                 /* host or vhost matches mask */
 172                                                 Srv->SendTo(NULL, user, checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 173                                         }
 174                                 }
 175                         }
 176                         else
 177                         {
 178                                 /* IP address */
 179                                 for (user_hash::const_iterator a = clientlist.begin(); a != clientlist.end(); a++)
 180                                 {
 181                                         if (addr.sin_addr.s_addr == a->second->ip4.s_addr)
 182                                         {
 183                                                 /* same IP. */
 184                                                 Srv->SendTo(NULL, user, checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost());
 185                                         }
 186                                 }
 187                         }
 188
 189                         Srv->SendTo(NULL, user, checkstr + " matches " + ConvToStr(x));
 190                 }
 191
 192                 Srv->SendTo(NULL, user, checkstr + " END " + std::string(parameters[0]));
 193         }
 194 };
 195
 196
 197 class ModuleCheck : public Module
 198 {
 199  private:
 200         cmd_check *mycommand;
 201  public:
 202         ModuleCheck(Server* Me) : Module::Module(Me)
 203         {
 204                 Srv = Me;
 205                 mycommand = new cmd_check();
 206                 Srv->AddCommand(mycommand);
 207         }
 208
 209         virtual ~ModuleCheck()
 210         {
 211         }
 212
 213         virtual Version GetVersion()
 214         {
 215                 return Version(1, 0, 0, 0, VF_VENDOR);
 216         }
 217
 218         void Implements(char* List)
 219         {
 220                 /* we don't hook anything, nothing required */
 221         }
 222
 223 };
 224
 225
 226
 227 class ModuleCheckFactory : public ModuleFactory
 228 {
 229  public:
 230         ModuleCheckFactory()
 231         {
 232         }
 233
 234         ~ModuleCheckFactory()
 235         {
 236         }
 237
 238         virtual Module * CreateModule(Server* Me)
 239         {
 240                 return new ModuleCheck(Me);
 241         }
 242
 243 };
 244
 245 extern "C" void * init_module( void )
 246 {
 247         return new ModuleCheckFactory;
 248 }
 249