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         for (int i = 0; i < MAXCHANS; i++)
  61         {
  62                 this->chans[i].channel = NULL;
  63                 this->chans[i].uc_modes = 0;
  64         }
  65         invites.clear();
  66 }
  67
  68 userrec::~userrec()
  69 {
  70 }
  71
  72 void userrec::CloseSocket()
  73 {
  74         shutdown(this->fd,2);
  75         close(this->fd);
  76 }
  77
  78 char* userrec::GetFullHost()
  79 {
  80         static char result[MAXBUF];
  81         snprintf(result,MAXBUF,"%s!%s@%s",nick,ident,dhost);
  82         return result;
  83 }
  84
  85 int userrec::ReadData(void* buffer, size_t size)
  86 {
  87         if (this->fd > -1)
  88         {
  89                 log(DEBUG,"userrec::ReadData on fd %d",this->fd);
  90                 return read(this->fd, buffer, size);
  91         }
  92         else return 0;
  93 }
  94
  95
  96 char* userrec::GetFullRealHost()
  97 {
  98         static char fresult[MAXBUF];
  99         snprintf(fresult,MAXBUF,"%s!%s@%s",nick,ident,host);
 100         return fresult;
 101 }
 102
 103 bool userrec::IsInvited(char* channel)
 104 {
 105         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 106         {
 107                 if (i->channel) {
 108                         if (!strcasecmp(i->channel,channel))
 109                         {
 110                                 return true;
 111                         }
 112                 }
 113         }
 114         return false;
 115 }
 116
 117 InvitedList* userrec::GetInviteList()
 118 {
 119         return &invites;
 120 }
 121
 122 void userrec::InviteTo(char* channel)
 123 {
 124         Invited i;
 125         strlcpy(i.channel,channel,CHANMAX);
 126         invites.push_back(i);
 127 }
 128
 129 void userrec::RemoveInvite(char* channel)
 130 {
 131         log(DEBUG,"Removing invites");
 132         if (channel)
 133         {
 134                 if (invites.size())
 135                 {
 136                         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 137                         {
 138                                 if (i->channel)
 139                                 {
 140                                         if (!strcasecmp(i->channel,channel))
 141                                         {
 142                                                 invites.erase(i);
 143                                                 return;
 144                                         }
 145                                 }
 146                         }
 147                 }
 148         }
 149 }
 150
 151 bool userrec::HasPermission(char* command)
 152 {
 153         char TypeName[MAXBUF],Classes[MAXBUF],ClassName[MAXBUF],CommandList[MAXBUF];
 154         char* mycmd;
 155         char* savept;
 156         char* savept2;
 157
 158         // users on u-lined servers can completely bypass
 159         // all permissions based checks.
 160         //
 161         // of course, if this is sent to a remote server and this
 162         // server is not ulined there, then that other server
 163         // silently drops the command.
 164         if (is_uline(this->server))
 165                 return true;
 166
 167         // are they even an oper at all?
 168         if (strchr(this->modes,'o'))
 169         {
 170                 log(DEBUG,"*** HasPermission: %s is an oper",this->nick);
 171                 for (int j =0; j < ConfValueEnum("type",&config_f); j++)
 172                 {
 173                         ConfValue("type","name",j,TypeName,&config_f);
 174                         if (!strcmp(TypeName,this->oper))
 175                         {
 176                                 log(DEBUG,"*** HasPermission: %s is an oper of type '%s'",this->nick,this->oper);
 177                                 ConfValue("type","classes",j,Classes,&config_f);
 178                                 char* myclass = strtok_r(Classes," ",&savept);
 179                                 while (myclass)
 180                                 {
 181                                         log(DEBUG,"*** HasPermission: checking classtype '%s'",myclass);
 182                                         for (int k =0; k < ConfValueEnum("class",&config_f); k++)
 183                                         {
 184                                                 ConfValue("class","name",k,ClassName,&config_f);
 185                                                 if (!strcmp(ClassName,myclass))
 186                                                 {
 187                                                         ConfValue("class","commands",k,CommandList,&config_f);
 188                                                         log(DEBUG,"*** HasPermission: found class named %s with commands: '%s'",ClassName,CommandList);
 189
 190
 191                                                         mycmd = strtok_r(CommandList," ",&savept2);
 192                                                         while (mycmd)
 193                                                         {
 194                                                                 if (!strcasecmp(mycmd,command))
 195                                                                 {
 196                                                                         log(DEBUG,"*** Command %s found, returning true",command);
 197                                                                         return true;
 198                                                                 }
 199                                                                 mycmd = strtok_r(NULL," ",&savept2);
 200                                                         }
 201                                                 }
 202                                         }
 203                                         myclass = strtok_r(NULL," ",&savept);
 204                                 }
 205                         }
 206                 }
 207         }
 208         return false;
 209 }
 210
 211
 212 bool userrec::AddBuffer(std::string a)
 213 {
 214         std::string b = "";
 215         for (unsigned int i = 0; i < a.length(); i++)
 216                 if ((a[i] != '\r') && (a[i] != '\0') && (a[i] != 7))
 217                         b = b + a[i];
 218         std::stringstream stream(recvq);
 219         stream << b;
 220         recvq = stream.str();
 221         unsigned int i = 0;
 222         // count the size of the first line in the buffer.
 223         while (i < recvq.length())
 224         {
 225                 if (recvq[i++] == '\n')
 226                         break;
 227         }
 228         if (recvq.length() > (unsigned)this->recvqmax)
 229         {
 230                 this->SetWriteError("RecvQ exceeded");
 231                 WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
 232         }
 233         // return false if we've had more than 600 characters WITHOUT
 234         // a carriage return (this is BAD, drop the socket)
 235         return (i < 600);
 236 }
 237
 238 bool userrec::BufferIsReady()
 239 {
 240         for (unsigned int i = 0; i < recvq.length(); i++)
 241                 if (recvq[i] == '\n')
 242                         return true;
 243         return false;
 244 }
 245
 246 void userrec::ClearBuffer()
 247 {
 248         recvq = "";
 249 }
 250
 251 std::string userrec::GetBuffer()
 252 {
 253         if (recvq == "")
 254                 return "";
 255         char* line = (char*)recvq.c_str();
 256         std::string ret = "";
 257         while ((*line != '\n') && (strlen(line)))
 258         {
 259                 ret = ret + *line;
 260                 line++;
 261         }
 262         if ((*line == '\n') || (*line == '\r'))
 263                 line++;
 264         recvq = line;
 265         return ret;
 266 }
 267
 268 void userrec::AddWriteBuf(std::string data)
 269 {
 270         if (this->GetWriteError() != "")
 271                 return;
 272         if (sendq.length() + data.length() > (unsigned)this->sendqmax)
 273         {
 274                 WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
 275                 this->SetWriteError("SendQ exceeded");
 276                 return;
 277         }
 278         std::stringstream stream;
 279         stream << sendq << data;
 280         sendq = stream.str();
 281 }
 282
 283 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 284 void userrec::FlushWriteBuf()
 285 {
 286         if (sendq.length())
 287         {
 288                 char* tb = (char*)this->sendq.c_str();
 289                 int n_sent = write(this->fd,tb,this->sendq.length());
 290                 if (n_sent == -1)
 291                 {
 292                         this->SetWriteError(strerror(errno));
 293                 }
 294                 else
 295                 {
 296                         // advance the queue
 297                         tb += n_sent;
 298                         this->sendq = tb;
 299                         // update the user's stats counters
 300                         this->bytes_out += n_sent;
 301                         this->cmds_out++;
 302                 }
 303         }
 304 }
 305
 306 void userrec::SetWriteError(std::string error)
 307 {
 308         log(DEBUG,"Setting error string for %s to '%s'",this->nick,error.c_str());
 309         // don't try to set the error twice, its already set take the first string.
 310         if (this->WriteError == "")
 311                 this->WriteError = error;
 312 }
 313
 314 std::string userrec::GetWriteError()
 315 {
 316         return this->WriteError;
 317 }