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 "helperfuncs.h"
  31
  32 extern std::stringstream config_f;
  33 extern char ServerName[MAXBUF];
  34
  35 extern time_t TIME;
  36
  37 userrec::userrec()
  38 {
  39         // the PROPER way to do it, AVOID bzero at *ALL* costs
  40         strcpy(nick,"");
  41         strcpy(ip,"127.0.0.1");
  42         timeout = 0;
  43         strcpy(ident,"");
  44         strcpy(host,"");
  45         strcpy(dhost,"");
  46         strcpy(fullname,"");
  47         strcpy(modes,"");
  48         server = (char*)FindServerNamePtr(ServerName);
  49         strcpy(awaymsg,"");
  50         strcpy(oper,"");
  51         reset_due = TIME;
  52         lines_in = 0;
  53         fd = lastping = signon = idle_lastmsg = nping = registered = 0;
  54         flood = port = bytes_in = bytes_out = cmds_in = cmds_out = 0;
  55         haspassed = false;
  56         dns_done = false;
  57         recvq = "";
  58         sendq = "";
  59         for (int i = 0; i < MAXCHANS; i++)
  60         {
  61                 this->chans[i].channel = NULL;
  62                 this->chans[i].uc_modes = 0;
  63         }
  64         invites.clear();
  65 }
  66
  67 userrec::~userrec()
  68 {
  69 #ifdef THREADED_DNS
  70         // for local clients, clean up their dns thread
  71         if (!strcmp(this->server,ServerName))
  72         {
  73                 pthread_kill(this->dnsthread,9);
  74         }
  75 #endif
  76 }
  77
  78 void userrec::CloseSocket()
  79 {
  80         shutdown(this->fd,2);
  81         close(this->fd);
  82 }
  83
  84 char* userrec::GetFullHost()
  85 {
  86         static char result[MAXBUF];
  87         snprintf(result,MAXBUF,"%s!%s@%s",nick,ident,dhost);
  88         return result;
  89 }
  90
  91 int userrec::ReadData(void* buffer, size_t size)
  92 {
  93         if (this->fd > -1)
  94         {
  95                 log(DEBUG,"userrec::ReadData on fd %d",this->fd);
  96                 return read(this->fd, buffer, size);
  97         }
  98         else return 0;
  99 }
 100
 101
 102 char* userrec::GetFullRealHost()
 103 {
 104         static char fresult[MAXBUF];
 105         snprintf(fresult,MAXBUF,"%s!%s@%s",nick,ident,host);
 106         return fresult;
 107 }
 108
 109 bool userrec::IsInvited(char* channel)
 110 {
 111         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 112         {
 113                 if (i->channel) {
 114                         if (!strcasecmp(i->channel,channel))
 115                         {
 116                                 return true;
 117                         }
 118                 }
 119         }
 120         return false;
 121 }
 122
 123 InvitedList* userrec::GetInviteList()
 124 {
 125         return &invites;
 126 }
 127
 128 void userrec::InviteTo(char* channel)
 129 {
 130         Invited i;
 131         strlcpy(i.channel,channel,CHANMAX);
 132         invites.push_back(i);
 133 }
 134
 135 void userrec::RemoveInvite(char* channel)
 136 {
 137         log(DEBUG,"Removing invites");
 138         if (channel)
 139         {
 140                 if (invites.size())
 141                 {
 142                         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 143                         {
 144                                 if (i->channel)
 145                                 {
 146                                         if (!strcasecmp(i->channel,channel))
 147                                         {
 148                                                 invites.erase(i);
 149                                                 return;
 150                                         }
 151                                 }
 152                         }
 153                 }
 154         }
 155 }
 156
 157 bool userrec::HasPermission(char* command)
 158 {
 159         char TypeName[MAXBUF],Classes[MAXBUF],ClassName[MAXBUF],CommandList[MAXBUF];
 160         char* mycmd;
 161         char* savept;
 162         char* savept2;
 163
 164         // users on u-lined servers can completely bypass
 165         // all permissions based checks.
 166         //
 167         // of course, if this is sent to a remote server and this
 168         // server is not ulined there, then that other server
 169         // silently drops the command.
 170         if (is_uline(this->server))
 171                 return true;
 172
 173         // are they even an oper at all?
 174         if (strchr(this->modes,'o'))
 175         {
 176                 log(DEBUG,"*** HasPermission: %s is an oper",this->nick);
 177                 for (int j =0; j < ConfValueEnum("type",&config_f); j++)
 178                 {
 179                         ConfValue("type","name",j,TypeName,&config_f);
 180                         if (!strcmp(TypeName,this->oper))
 181                         {
 182                                 log(DEBUG,"*** HasPermission: %s is an oper of type '%s'",this->nick,this->oper);
 183                                 ConfValue("type","classes",j,Classes,&config_f);
 184                                 char* myclass = strtok_r(Classes," ",&savept);
 185                                 while (myclass)
 186                                 {
 187                                         log(DEBUG,"*** HasPermission: checking classtype '%s'",myclass);
 188                                         for (int k =0; k < ConfValueEnum("class",&config_f); k++)
 189                                         {
 190                                                 ConfValue("class","name",k,ClassName,&config_f);
 191                                                 if (!strcmp(ClassName,myclass))
 192                                                 {
 193                                                         ConfValue("class","commands",k,CommandList,&config_f);
 194                                                         log(DEBUG,"*** HasPermission: found class named %s with commands: '%s'",ClassName,CommandList);
 195
 196
 197                                                         mycmd = strtok_r(CommandList," ",&savept2);
 198                                                         while (mycmd)
 199                                                         {
 200                                                                 if (!strcasecmp(mycmd,command))
 201                                                                 {
 202                                                                         log(DEBUG,"*** Command %s found, returning true",command);
 203                                                                         return true;
 204                                                                 }
 205                                                                 mycmd = strtok_r(NULL," ",&savept2);
 206                                                         }
 207                                                 }
 208                                         }
 209                                         myclass = strtok_r(NULL," ",&savept);
 210                                 }
 211                         }
 212                 }
 213         }
 214         return false;
 215 }
 216
 217
 218 bool userrec::AddBuffer(std::string a)
 219 {
 220         std::string b = "";
 221         for (unsigned int i = 0; i < a.length(); i++)
 222                 if ((a[i] != '\r') && (a[i] != '\0') && (a[i] != 7))
 223                         b = b + a[i];
 224         std::stringstream stream(recvq);
 225         stream << b;
 226         recvq = stream.str();
 227         unsigned int i = 0;
 228         // count the size of the first line in the buffer.
 229         while (i < recvq.length())
 230         {
 231                 if (recvq[i++] == '\n')
 232                         break;
 233         }
 234         if (recvq.length() > (unsigned)this->recvqmax)
 235         {
 236                 this->SetWriteError("RecvQ exceeded");
 237                 WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
 238         }
 239         // return false if we've had more than 600 characters WITHOUT
 240         // a carriage return (this is BAD, drop the socket)
 241         return (i < 600);
 242 }
 243
 244 bool userrec::BufferIsReady()
 245 {
 246         for (unsigned int i = 0; i < recvq.length(); i++)
 247                 if (recvq[i] == '\n')
 248                         return true;
 249         return false;
 250 }
 251
 252 void userrec::ClearBuffer()
 253 {
 254         recvq = "";
 255 }
 256
 257 std::string userrec::GetBuffer()
 258 {
 259         if (recvq == "")
 260                 return "";
 261         char* line = (char*)recvq.c_str();
 262         std::string ret = "";
 263         while ((*line != '\n') && (strlen(line)))
 264         {
 265                 ret = ret + *line;
 266                 line++;
 267         }
 268         if ((*line == '\n') || (*line == '\r'))
 269                 line++;
 270         recvq = line;
 271         return ret;
 272 }
 273
 274 void userrec::AddWriteBuf(std::string data)
 275 {
 276         if (this->GetWriteError() != "")
 277                 return;
 278         if (sendq.length() + data.length() > (unsigned)this->sendqmax)
 279         {
 280                 WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
 281                 this->SetWriteError("SendQ exceeded");
 282                 return;
 283         }
 284         std::stringstream stream;
 285         stream << sendq << data;
 286         sendq = stream.str();
 287 }
 288
 289 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 290 void userrec::FlushWriteBuf()
 291 {
 292         if (sendq.length())
 293         {
 294                 char* tb = (char*)this->sendq.c_str();
 295                 int n_sent = write(this->fd,tb,this->sendq.length());
 296                 if (n_sent == -1)
 297                 {
 298                         this->SetWriteError(strerror(errno));
 299                 }
 300                 else
 301                 {
 302                         // advance the queue
 303                         tb += n_sent;
 304                         this->sendq = tb;
 305                         // update the user's stats counters
 306                         this->bytes_out += n_sent;
 307                         this->cmds_out++;
 308                 }
 309         }
 310 }
 311
 312 void userrec::SetWriteError(std::string error)
 313 {
 314         log(DEBUG,"Setting error string for %s to '%s'",this->nick,error.c_str());
 315         // don't try to set the error twice, its already set take the first string.
 316         if (this->WriteError == "")
 317                 this->WriteError = error;
 318 }
 319
 320 std::string userrec::GetWriteError()
 321 {
 322         return this->WriteError;
 323 }