src/commands.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 #include "inspircd_config.h"
  18 #include "inspircd.h"
  19 #include "configreader.h"
  20 #include <unistd.h>
  21 #include <sys/errno.h>
  22 #include <sys/ioctl.h>
  23 #include <sys/utsname.h>
  24 #include <cstdio>
  25 #include <time.h>
  26 #include <string>
  27 #include <sstream>
  28 #include <vector>
  29 #include <sys/types.h>
  30 #include <sys/time.h>
  31 #include <sys/resource.h>
  32 #ifndef RUSAGE_SELF
  33 #define   RUSAGE_SELF     0
  34 #define   RUSAGE_CHILDREN     -1
  35 #endif
  36 #include "users.h"
  37 #include "ctables.h"
  38 #include "globals.h"
  39 #include "modules.h"
  40 #include "dynamic.h"
  41 #include "wildcard.h"
  42 #include "commands.h"
  43 #include "mode.h"
  44 #include "xline.h"
  45 #include "inspstring.h"
  46 #include "helperfuncs.h"
  47 #include "hashcomp.h"
  48 #include "socketengine.h"
  49 #include "typedefs.h"
  50 #include "command_parse.h"
  51
  52 extern InspIRCd* ServerInstance;
  53
  54 extern time_t TIME;
  55
  56 const long duration_m = 60;
  57 const long duration_h = duration_m * 60;
  58 const long duration_d = duration_h * 24;
  59 const long duration_w = duration_d * 7;
  60 const long duration_y = duration_w * 52;
  61
  62 /* XXX - these really belong in helperfuncs perhaps -- w00t */
  63 bool is_uline(const char* server)
  64 {
  65         if (!server)
  66                 return false;
  67         if (!*server)
  68                 return true;
  69
  70         return (find(ServerInstance->Config->ulines.begin(),ServerInstance->Config->ulines.end(),server) != ServerInstance->Config->ulines.end());
  71 }
  72
  73 int operstrcmp(const char* data,const char* input)
  74 {
  75         int MOD_RESULT = 0;
  76         FOREACH_RESULT(I_OnOperCompare,OnOperCompare(data,input))
  77         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
  78         if (MOD_RESULT == 1)
  79                 return 0;
  80         if (MOD_RESULT == -1)
  81                 return 1;
  82         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
  83         return strcmp(data,input);
  84 }
  85
  86 long duration(const char* str)
  87 {
  88         char n_field[MAXBUF];
  89         long total = 0;
  90         n_field[0] = 0;
  91
  92         if ((!strchr(str,'s')) && (!strchr(str,'m')) && (!strchr(str,'h')) && (!strchr(str,'d')) && (!strchr(str,'w')) && (!strchr(str,'y')))
  93         {
  94                 std::string n = str;
  95                 n += 's';
  96                 return duration(n.c_str());
  97         }
  98
  99         for (char* i = (char*)str; *i; i++)
 100         {
 101                 // if we have digits, build up a string for the value in n_field,
 102                 // up to 10 digits in size.
 103                 if ((*i >= '0') && (*i <= '9'))
 104                 {
 105                         strlcat(n_field,i,10);
 106                 }
 107                 else
 108                 {
 109                         // we dont have a digit, check for numeric tokens
 110                         switch (tolower(*i))
 111                         {
 112                                 case 's':
 113                                         total += atoi(n_field);
 114                                 break;
 115
 116                                 case 'm':
 117                                         total += (atoi(n_field)*duration_m);
 118                                 break;
 119
 120                                 case 'h':
 121                                         total += (atoi(n_field)*duration_h);
 122                                 break;
 123
 124                                 case 'd':
 125                                         total += (atoi(n_field)*duration_d);
 126                                 break;
 127
 128                                 case 'w':
 129                                         total += (atoi(n_field)*duration_w);
 130                                 break;
 131
 132                                 case 'y':
 133                                         total += (atoi(n_field)*duration_y);
 134                                 break;
 135                         }
 136                         n_field[0] = 0;
 137                 }
 138         }
 139         // add trailing seconds
 140         total += atoi(n_field);
 141
 142         return total;
 143 }
 144
 145 /* All other ircds when doing this check usually just look for a string of *@* or *. We're smarter than that, though. */
 146
 147 bool host_matches_everyone(const std::string &mask, userrec* user)
 148 {
 149         char buffer[MAXBUF];
 150         char itrigger[MAXBUF];
 151         long matches = 0;
 152
 153         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger", 0, itrigger, MAXBUF))
 154                 strlcpy(itrigger,"95.5",MAXBUF);
 155
 156         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","hostmasks", 0))
 157                 return false;
 158
 159         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 160         {
 161                 strlcpy(buffer,u->second->ident,MAXBUF);
 162                 charlcat(buffer,'@',MAXBUF);
 163                 strlcat(buffer,u->second->host,MAXBUF);
 164                 if (match(buffer,mask.c_str()))
 165                         matches++;
 166         }
 167         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 168         if (percent > (float)atof(itrigger))
 169         {
 170                 ServerInstance->WriteOpers("*** \2WARNING\2: %s tried to set a G/K/E line mask of %s, which covers %.2f%% of the network!",user->nick,mask.c_str(),percent);
 171                 return true;
 172         }
 173         return false;
 174 }
 175
 176 bool ip_matches_everyone(const std::string &ip, userrec* user)
 177 {
 178         char itrigger[MAXBUF];
 179         long matches = 0;
 180
 181         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
 182                 strlcpy(itrigger,"95.5",MAXBUF);
 183
 184         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","ipmasks",0))
 185                 return false;
 186
 187         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 188         {
 189                 if (match(u->second->GetIPString(),ip.c_str(),true))
 190                         matches++;
 191         }
 192
 193         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 194         if (percent > (float)atof(itrigger))
 195         {
 196                 ServerInstance->WriteOpers("*** \2WARNING\2: %s tried to set a Z line mask of %s, which covers %.2f%% of the network!",user->nick,ip.c_str(),percent);
 197                 return true;
 198         }
 199         return false;
 200 }
 201
 202 bool nick_matches_everyone(const std::string &nick, userrec* user)
 203 {
 204         char itrigger[MAXBUF];
 205         long matches = 0;
 206
 207         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
 208                 strlcpy(itrigger,"95.5",MAXBUF);
 209
 210         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","nickmasks",0))
 211                 return false;
 212
 213         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 214         {
 215                 if (match(u->second->nick,nick.c_str()))
 216                         matches++;
 217         }
 218
 219         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 220         if (percent > (float)atof(itrigger))
 221         {
 222                 ServerInstance->WriteOpers("*** \2WARNING\2: %s tried to set a Q line mask of %s, which covers %.2f%% of the network!",user->nick,nick.c_str(),percent);
 223                 return true;
 224         }
 225         return false;
 226 }