src/users.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 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 "inspircd_config.h"
  20 #include "channels.h"
  21 #include "connection.h"
  22 #include "users.h"
  23 #include "inspircd.h"
  24 #include <stdio.h>
  25 #ifdef THREADED_DNS
  26 #include <pthread.h>
  27 #include <signal.h>
  28 #endif
  29 #include "inspstring.h"
  30 #include "commands.h"
  31 #include "helperfuncs.h"
  32
  33 extern std::stringstream config_f;
  34 extern char ServerName[MAXBUF];
  35
  36 extern time_t TIME;
  37
  38 userrec::userrec()
  39 {
  40         // the PROPER way to do it, AVOID bzero at *ALL* costs
  41         strcpy(nick,"");
  42         strcpy(ip,"127.0.0.1");
  43         timeout = 0;
  44         strcpy(ident,"");
  45         strcpy(host,"");
  46         strcpy(dhost,"");
  47         strcpy(fullname,"");
  48         strcpy(modes,"");
  49         server = (char*)FindServerNamePtr(ServerName);
  50         strcpy(awaymsg,"");
  51         strcpy(oper,"");
  52         reset_due = TIME;
  53         lines_in = 0;
  54         fd = lastping = signon = idle_lastmsg = nping = registered = 0;
  55         flood = port = bytes_in = bytes_out = cmds_in = cmds_out = 0;
  56         haspassed = false;
  57         dns_done = false;
  58         recvq = "";
  59         sendq = "";
  60         chans.clear();
  61         invites.clear();
  62 }
  63
  64 userrec::~userrec()
  65 {
  66 }
  67
  68 void userrec::CloseSocket()
  69 {
  70         shutdown(this->fd,2);
  71         close(this->fd);
  72 }
  73
  74 char* userrec::GetFullHost()
  75 {
  76         static char result[MAXBUF];
  77         snprintf(result,MAXBUF,"%s!%s@%s",nick,ident,dhost);
  78         return result;
  79 }
  80
  81 int userrec::ReadData(void* buffer, size_t size)
  82 {
  83         if (this->fd > -1)
  84         {
  85                 return read(this->fd, buffer, size);
  86         }
  87         else return 0;
  88 }
  89
  90
  91 char* userrec::GetFullRealHost()
  92 {
  93         static char fresult[MAXBUF];
  94         snprintf(fresult,MAXBUF,"%s!%s@%s",nick,ident,host);
  95         return fresult;
  96 }
  97
  98 bool userrec::IsInvited(char* channel)
  99 {
 100         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 101         {
 102                 if (i->channel) {
 103                         if (!strcasecmp(i->channel,channel))
 104                         {
 105                                 return true;
 106                         }
 107                 }
 108         }
 109         return false;
 110 }
 111
 112 InvitedList* userrec::GetInviteList()
 113 {
 114         return &invites;
 115 }
 116
 117 void userrec::InviteTo(char* channel)
 118 {
 119         Invited i;
 120         strlcpy(i.channel,channel,CHANMAX);
 121         invites.push_back(i);
 122 }
 123
 124 void userrec::RemoveInvite(char* channel)
 125 {
 126         log(DEBUG,"Removing invites");
 127         if (channel)
 128         {
 129                 if (invites.size())
 130                 {
 131                         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 132                         {
 133                                 if (i->channel)
 134                                 {
 135                                         if (!strcasecmp(i->channel,channel))
 136                                         {
 137                                                 invites.erase(i);
 138                                                 return;
 139                                         }
 140                                 }
 141                         }
 142                 }
 143         }
 144 }
 145
 146 bool userrec::HasPermission(char* command)
 147 {
 148         char TypeName[MAXBUF],Classes[MAXBUF],ClassName[MAXBUF],CommandList[MAXBUF];
 149         char* mycmd;
 150         char* savept;
 151         char* savept2;
 152
 153         // users on u-lined servers can completely bypass
 154         // all permissions based checks.
 155         //
 156         // of course, if this is sent to a remote server and this
 157         // server is not ulined there, then that other server
 158         // silently drops the command.
 159         if (is_uline(this->server))
 160                 return true;
 161
 162         // are they even an oper at all?
 163         if (strchr(this->modes,'o'))
 164         {
 165                 for (int j =0; j < ConfValueEnum("type",&config_f); j++)
 166                 {
 167                         ConfValue("type","name",j,TypeName,&config_f);
 168                         if (!strcmp(TypeName,this->oper))
 169                         {
 170                                 ConfValue("type","classes",j,Classes,&config_f);
 171                                 char* myclass = strtok_r(Classes," ",&savept);
 172                                 while (myclass)
 173                                 {
 174                                         for (int k =0; k < ConfValueEnum("class",&config_f); k++)
 175                                         {
 176                                                 ConfValue("class","name",k,ClassName,&config_f);
 177                                                 if (!strcmp(ClassName,myclass))
 178                                                 {
 179                                                         ConfValue("class","commands",k,CommandList,&config_f);
 180                                                         mycmd = strtok_r(CommandList," ",&savept2);
 181                                                         while (mycmd)
 182                                                         {
 183                                                                 if ((!strcasecmp(mycmd,command)) || (*mycmd == '*'))
 184                                                                 {
 185                                                                         return true;
 186                                                                 }
 187                                                                 mycmd = strtok_r(NULL," ",&savept2);
 188                                                         }
 189                                                 }
 190                                         }
 191                                         myclass = strtok_r(NULL," ",&savept);
 192                                 }
 193                         }
 194                 }
 195         }
 196         return false;
 197 }
 198
 199
 200 bool userrec::AddBuffer(std::string a)
 201 {
 202         std::string b = "";
 203         for (unsigned int i = 0; i < a.length(); i++)
 204                 if ((a[i] != '\r') && (a[i] != '\0') && (a[i] != 7))
 205                         b = b + a[i];
 206         std::stringstream stream(recvq);
 207         stream << b;
 208         recvq = stream.str();
 209         unsigned int i = 0;
 210         // count the size of the first line in the buffer.
 211         while (i < recvq.length())
 212         {
 213                 if (recvq[i++] == '\n')
 214                         break;
 215         }
 216         if (recvq.length() > (unsigned)this->recvqmax)
 217         {
 218                 this->SetWriteError("RecvQ exceeded");
 219                 WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
 220         }
 221         // return false if we've had more than 600 characters WITHOUT
 222         // a carriage return (this is BAD, drop the socket)
 223         return (i < 600);
 224 }
 225
 226 bool userrec::BufferIsReady()
 227 {
 228         for (unsigned int i = 0; i < recvq.length(); i++)
 229                 if (recvq[i] == '\n')
 230                         return true;
 231         return false;
 232 }
 233
 234 void userrec::ClearBuffer()
 235 {
 236         recvq = "";
 237 }
 238
 239 std::string userrec::GetBuffer()
 240 {
 241         if (recvq == "")
 242                 return "";
 243         char* line = (char*)recvq.c_str();
 244         std::string ret = "";
 245         while ((*line != '\n') && (strlen(line)))
 246         {
 247                 ret = ret + *line;
 248                 line++;
 249         }
 250         if ((*line == '\n') || (*line == '\r'))
 251                 line++;
 252         recvq = line;
 253         return ret;
 254 }
 255
 256 void userrec::AddWriteBuf(std::string data)
 257 {
 258         if (this->GetWriteError() != "")
 259                 return;
 260         if (sendq.length() + data.length() > (unsigned)this->sendqmax)
 261         {
 262                 WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
 263                 this->SetWriteError("SendQ exceeded");
 264                 return;
 265         }
 266         std::stringstream stream;
 267         stream << sendq << data;
 268         sendq = stream.str();
 269 }
 270
 271 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 272 void userrec::FlushWriteBuf()
 273 {
 274         if (sendq.length())
 275         {
 276                 char* tb = (char*)this->sendq.c_str();
 277                 int n_sent = write(this->fd,tb,this->sendq.length());
 278                 if (n_sent == -1)
 279                 {
 280                         this->SetWriteError(strerror(errno));
 281                 }
 282                 else
 283                 {
 284                         // advance the queue
 285                         tb += n_sent;
 286                         this->sendq = tb;
 287                         // update the user's stats counters
 288                         this->bytes_out += n_sent;
 289                         this->cmds_out++;
 290                 }
 291         }
 292 }
 293
 294 void userrec::SetWriteError(std::string error)
 295 {
 296         log(DEBUG,"Setting error string for %s to '%s'",this->nick,error.c_str());
 297         // don't try to set the error twice, its already set take the first string.
 298         if (this->WriteError == "")
 299                 this->WriteError = error;
 300 }
 301
 302 std::string userrec::GetWriteError()
 303 {
 304         return this->WriteError;
 305 }