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 "message.h"
  43 #include "commands.h"
  44 #include "mode.h"
  45 #include "xline.h"
  46 #include "inspstring.h"
  47 #include "helperfuncs.h"
  48 #include "hashcomp.h"
  49 #include "socketengine.h"
  50 #include "typedefs.h"
  51 #include "command_parse.h"
  52
  53 extern InspIRCd* ServerInstance;
  54
  55 extern int MODCOUNT;
  56 extern ModuleList modules;
  57 extern FactoryList factory;
  58 extern time_t TIME;
  59
  60 const long duration_m = 60;
  61 const long duration_h = duration_m * 60;
  62 const long duration_d = duration_h * 24;
  63 const long duration_w = duration_d * 7;
  64 const long duration_y = duration_w * 52;
  65
  66 extern std::vector<userrec*> all_opers;
  67
  68 void split_chlist(userrec* user, userrec* dest, const std::string &cl)
  69 {
  70         std::string line;
  71         std::ostringstream prefix;
  72         std::string::size_type start, pos, length;
  73
  74         prefix << ":" << ServerInstance->Config->ServerName << " 319 " << user->nick << " " << dest->nick << " :";
  75         line = prefix.str();
  76
  77         for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
  78         {
  79                 length = (pos == std::string::npos) ? cl.length() : pos;
  80
  81                 if (line.length() + length - start > 510)
  82                 {
  83                         user->Write(line);
  84                         line = prefix.str();
  85                 }
  86
  87                 if(pos == std::string::npos)
  88                 {
  89                         line += cl.substr(start, length - start);
  90                         break;
  91                 }
  92                 else
  93                 {
  94                         line += cl.substr(start, length - start + 1);
  95                 }
  96         }
  97
  98         if (line.length())
  99         {
 100                 user->Write(line);
 101         }
 102 }
 103
 104 /* XXX - these really belong in helperfuncs perhaps -- w00t */
 105 bool is_uline(const char* server)
 106 {
 107         if (!server)
 108                 return false;
 109         if (!*server)
 110                 return true;
 111
 112         return (find(ServerInstance->Config->ulines.begin(),ServerInstance->Config->ulines.end(),server) != ServerInstance->Config->ulines.end());
 113 }
 114
 115 int operstrcmp(const char* data,const char* input)
 116 {
 117         int MOD_RESULT = 0;
 118         FOREACH_RESULT(I_OnOperCompare,OnOperCompare(data,input))
 119         log(DEBUG,"operstrcmp: %d",MOD_RESULT);
 120         if (MOD_RESULT == 1)
 121                 return 0;
 122         if (MOD_RESULT == -1)
 123                 return 1;
 124         log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
 125         return strcmp(data,input);
 126 }
 127
 128 long duration(const char* str)
 129 {
 130         char n_field[MAXBUF];
 131         long total = 0;
 132         n_field[0] = 0;
 133
 134         if ((!strchr(str,'s')) && (!strchr(str,'m')) && (!strchr(str,'h')) && (!strchr(str,'d')) && (!strchr(str,'w')) && (!strchr(str,'y')))
 135         {
 136                 std::string n = str;
 137                 n += 's';
 138                 return duration(n.c_str());
 139         }
 140
 141         for (char* i = (char*)str; *i; i++)
 142         {
 143                 // if we have digits, build up a string for the value in n_field,
 144                 // up to 10 digits in size.
 145                 if ((*i >= '0') && (*i <= '9'))
 146                 {
 147                         strlcat(n_field,i,10);
 148                 }
 149                 else
 150                 {
 151                         // we dont have a digit, check for numeric tokens
 152                         switch (tolower(*i))
 153                         {
 154                                 case 's':
 155                                         total += atoi(n_field);
 156                                 break;
 157
 158                                 case 'm':
 159                                         total += (atoi(n_field)*duration_m);
 160                                 break;
 161
 162                                 case 'h':
 163                                         total += (atoi(n_field)*duration_h);
 164                                 break;
 165
 166                                 case 'd':
 167                                         total += (atoi(n_field)*duration_d);
 168                                 break;
 169
 170                                 case 'w':
 171                                         total += (atoi(n_field)*duration_w);
 172                                 break;
 173
 174                                 case 'y':
 175                                         total += (atoi(n_field)*duration_y);
 176                                 break;
 177                         }
 178                         n_field[0] = 0;
 179                 }
 180         }
 181         // add trailing seconds
 182         total += atoi(n_field);
 183
 184         return total;
 185 }
 186
 187 /* All other ircds when doing this check usually just look for a string of *@* or *. We're smarter than that, though. */
 188
 189 bool host_matches_everyone(const std::string &mask, userrec* user)
 190 {
 191         char buffer[MAXBUF];
 192         char itrigger[MAXBUF];
 193         long matches = 0;
 194
 195         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger", 0, itrigger, MAXBUF))
 196                 strlcpy(itrigger,"95.5",MAXBUF);
 197
 198         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","hostmasks", 0))
 199                 return false;
 200
 201         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 202         {
 203                 strlcpy(buffer,u->second->ident,MAXBUF);
 204                 charlcat(buffer,'@',MAXBUF);
 205                 strlcat(buffer,u->second->host,MAXBUF);
 206                 if (match(buffer,mask.c_str()))
 207                         matches++;
 208         }
 209         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 210         if (percent > (float)atof(itrigger))
 211         {
 212                 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);
 213                 return true;
 214         }
 215         return false;
 216 }
 217
 218 bool ip_matches_everyone(const std::string &ip, userrec* user)
 219 {
 220         char itrigger[MAXBUF];
 221         long matches = 0;
 222
 223         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
 224                 strlcpy(itrigger,"95.5",MAXBUF);
 225
 226         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","ipmasks",0))
 227                 return false;
 228
 229         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 230         {
 231                 if (match(u->second->GetIPString(),ip.c_str(),true))
 232                         matches++;
 233         }
 234
 235         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 236         if (percent > (float)atof(itrigger))
 237         {
 238                 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);
 239                 return true;
 240         }
 241         return false;
 242 }
 243
 244 bool nick_matches_everyone(const std::string &nick, userrec* user)
 245 {
 246         char itrigger[MAXBUF];
 247         long matches = 0;
 248
 249         if (!ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
 250                 strlcpy(itrigger,"95.5",MAXBUF);
 251
 252         if (ServerInstance->Config->ConfValueBool(ServerInstance->Config->config_data, "insane","nickmasks",0))
 253                 return false;
 254
 255         for (user_hash::iterator u = ServerInstance->clientlist.begin(); u != ServerInstance->clientlist.end(); u++)
 256         {
 257                 if (match(u->second->nick,nick.c_str()))
 258                         matches++;
 259         }
 260
 261         float percent = ((float)matches / (float)ServerInstance->clientlist.size()) * 100;
 262         if (percent > (float)atof(itrigger))
 263         {
 264                 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);
 265                 return true;
 266         }
 267         return false;
 268 }