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 int MODCOUNT;
  55 extern ModuleList modules;
  56 extern FactoryList factory;
  57 extern time_t TIME;
  58
  59 const long duration_m = 60;
  60 const long duration_h = duration_m * 60;
  61 const long duration_d = duration_h * 24;
  62 const long duration_w = duration_d * 7;
  63 const long duration_y = duration_w * 52;
  64
  65 extern std::vector<userrec*> all_opers;
  66
  67 void split_chlist(userrec* user, userrec* dest, const std::string &cl)
  68 {
  69         std::string line;
  70         std::ostringstream prefix;
  71         std::string::size_type start, pos, length;
  72
  73         prefix << ":" << ServerInstance->Config->ServerName << " 319 " << user->nick << " " << dest->nick << " :";
  74         line = prefix.str();
  75
  76         for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
  77         {
  78                 length = (pos == std::string::npos) ? cl.length() : pos;
  79
  80                 if (line.length() + length - start > 510)
  81                 {
  82                         user->Write(line);
  83                         line = prefix.str();
  84                 }
  85
  86                 if(pos == std::string::npos)
  87                 {
  88                         line += cl.substr(start, length - start);
  89                         break;
  90                 }
  91                 else
  92                 {
  93                         line += cl.substr(start, length - start + 1);
  94                 }
  95         }
  96
  97         if (line.length())
  98         {
  99                 user->Write(line);
 100         }
 101 }
 102
 103 /* XXX - these really belong in helperfuncs perhaps -- w00t */
 104 bool is_uline(const char* server)
 105 {
 106         if (!server)
 107                 return false;
 108         if (!*server)
 109                 return true;
 110
 111         return (find(ServerInstance->Config->ulines.begin(),ServerInstance->Config->ulines.end(),server) != ServerInstance->Config->ulines.end());
 112 }
 113
 114 int operstrcmp(const char* data,const char* input)
 115 {
 116         int MOD_RESULT = 0;
 117         FOREACH_RESULT(I_OnOperCompare,OnOperCompare(data,input))
 118         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
 119         if (MOD_RESULT == 1)
 120                 return 0;
 121         if (MOD_RESULT == -1)
 122                 return 1;
 123         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
 124         return strcmp(data,input);
 125 }
 126
 127 long duration(const char* str)
 128 {
 129         char n_field[MAXBUF];
 130         long total = 0;
 131         n_field[0] = 0;
 132
 133         if ((!strchr(str,'s')) && (!strchr(str,'m')) && (!strchr(str,'h')) && (!strchr(str,'d')) && (!strchr(str,'w')) && (!strchr(str,'y')))
 134         {
 135                 std::string n = str;
 136                 n += 's';
 137                 return duration(n.c_str());
 138         }
 139
 140         for (char* i = (char*)str; *i; i++)
 141         {
 142                 // if we have digits, build up a string for the value in n_field,
 143                 // up to 10 digits in size.
 144                 if ((*i >= '0') && (*i <= '9'))
 145                 {
 146                         strlcat(n_field,i,10);
 147                 }
 148                 else
 149                 {
 150                         // we dont have a digit, check for numeric tokens
 151                         switch (tolower(*i))
 152                         {
 153                                 case 's':
 154                                         total += atoi(n_field);
 155                                 break;
 156
 157                                 case 'm':
 158                                         total += (atoi(n_field)*duration_m);
 159                                 break;
 160
 161                                 case 'h':
 162                                         total += (atoi(n_field)*duration_h);
 163                                 break;
 164
 165                                 case 'd':
 166                                         total += (atoi(n_field)*duration_d);
 167                                 break;
 168
 169                                 case 'w':
 170                                         total += (atoi(n_field)*duration_w);
 171                                 break;
 172
 173                                 case 'y':
 174                                         total += (atoi(n_field)*duration_y);
 175                                 break;
 176                         }
 177                         n_field[0] = 0;
 178                 }
 179         }
 180         // add trailing seconds
 181         total += atoi(n_field);
 182
 183         return total;
 184 }
 185
 186 /* All other ircds when doing this check usually just look for a string of *@* or *. We're smarter than that, though. */
 187
 188 bool host_matches_everyone(const std::string &mask, userrec* user)
 189 {
 190         char buffer[MAXBUF];
 191         char itrigger[MAXBUF];
 192         long matches = 0;
 193
 194         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger", 0, itrigger, MAXBUF))
 195                 strlcpy(itrigger,"95.5",MAXBUF);
 196
 197         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","hostmasks", 0))
 198                 return false;
 199
 200         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 201         {
 202                 strlcpy(buffer,u->second->ident,MAXBUF);
 203                 charlcat(buffer,'@',MAXBUF);
 204                 strlcat(buffer,u->second->host,MAXBUF);
 205                 if (match(buffer,mask.c_str()))
 206                         matches++;
 207         }
 208         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 209         if (percent > (float)atof(itrigger))
 210         {
 211                 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);
 212                 return true;
 213         }
 214         return false;
 215 }
 216
 217 bool ip_matches_everyone(const std::string &ip, userrec* user)
 218 {
 219         char itrigger[MAXBUF];
 220         long matches = 0;
 221
 222         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
 223                 strlcpy(itrigger,"95.5",MAXBUF);
 224
 225         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","ipmasks",0))
 226                 return false;
 227
 228         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 229         {
 230                 if (match(u->second->GetIPString(),ip.c_str(),true))
 231                         matches++;
 232         }
 233
 234         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 235         if (percent > (float)atof(itrigger))
 236         {
 237                 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);
 238                 return true;
 239         }
 240         return false;
 241 }
 242
 243 bool nick_matches_everyone(const std::string &nick, userrec* user)
 244 {
 245         char itrigger[MAXBUF];
 246         long matches = 0;
 247
 248         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
 249                 strlcpy(itrigger,"95.5",MAXBUF);
 250
 251         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","nickmasks",0))
 252                 return false;
 253
 254         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 255         {
 256                 if (match(u->second->nick,nick.c_str()))
 257                         matches++;
 258         }
 259
 260         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 261         if (percent > (float)atof(itrigger))
 262         {
 263                 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);
 264                 return true;
 265         }
 266         return false;
 267 }