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