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users.cpp

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00001 /*       +------------------------------------+
00002  *       | Inspire Internet Relay Chat Daemon |
00003  *       +------------------------------------+
00004  *
00005  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
00006  *                       E-mail:
00007  *                <brain@chatspike.net>
00008  *                <Craig@chatspike.net>
00009  *     
00010  * Written by Craig Edwards, Craig McLure, and others.
00011  * This program is free but copyrighted software; see
00012  *            the file COPYING for details.
00013  *
00014  * ---------------------------------------------------
00015  */
00016 
00017 using namespace std;
00018 
00019 #include "inspircd_config.h" 
00020 #include "channels.h"
00021 #include "connection.h"
00022 #include "users.h"
00023 #include "inspircd.h"
00024 #include <stdio.h>
00025 #ifdef THREADED_DNS
00026 #include <pthread.h>
00027 #include <signal.h>
00028 #endif
00029 #include "inspstring.h"
00030 #include "commands.h"
00031 #include "helperfuncs.h"
00032 
00033 extern ServerConfig* Config;
00034 extern time_t TIME;
00035 
00036 userrec::userrec()
00037 {
00038         // the PROPER way to do it, AVOID bzero at *ALL* costs
00039         strcpy(nick,"");
00040         strcpy(ip,"127.0.0.1");
00041         timeout = 0;
00042         strcpy(ident,"");
00043         strcpy(host,"");
00044         strcpy(dhost,"");
00045         strcpy(fullname,"");
00046         strcpy(modes,"");
00047         server = (char*)FindServerNamePtr(Config->ServerName);
00048         strcpy(awaymsg,"");
00049         strcpy(oper,"");
00050         reset_due = TIME;
00051         lines_in = 0;
00052         fd = lastping = signon = idle_lastmsg = nping = registered = 0;
00053         flood = port = bytes_in = bytes_out = cmds_in = cmds_out = 0;
00054         haspassed = false;
00055         dns_done = false;
00056         recvq = "";
00057         sendq = "";
00058         chans.clear();
00059         invites.clear();
00060 }
00061 
00062 userrec::~userrec()
00063 {
00064 }
00065 
00066 void userrec::CloseSocket()
00067 {
00068         shutdown(this->fd,2);
00069         close(this->fd);
00070 }
00071  
00072 char* userrec::GetFullHost()
00073 {
00074         static char result[MAXBUF];
00075         snprintf(result,MAXBUF,"%s!%s@%s",nick,ident,dhost);
00076         return result;
00077 }
00078 
00079 int userrec::ReadData(void* buffer, size_t size)
00080 {
00081         if (this->fd > -1)
00082         {
00083                 return read(this->fd, buffer, size);
00084         }
00085         else return 0;
00086 }
00087 
00088 
00089 char* userrec::GetFullRealHost()
00090 {
00091         static char fresult[MAXBUF];
00092         snprintf(fresult,MAXBUF,"%s!%s@%s",nick,ident,host);
00093         return fresult;
00094 }
00095 
00096 bool userrec::IsInvited(char* channel)
00097 {
00098         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
00099         {
00100                 if (i->channel) {
00101                         if (!strcasecmp(i->channel,channel))
00102                         {
00103                                 return true;
00104                         }
00105                 }
00106         }
00107         return false;
00108 }
00109 
00110 InvitedList* userrec::GetInviteList()
00111 {
00112         return &invites;
00113 }
00114 
00115 void userrec::InviteTo(char* channel)
00116 {
00117         Invited i;
00118         strlcpy(i.channel,channel,CHANMAX);
00119         invites.push_back(i);
00120 }
00121 
00122 void userrec::RemoveInvite(char* channel)
00123 {
00124         log(DEBUG,"Removing invites");
00125         if (channel)
00126         {
00127                 if (invites.size())
00128                 {
00129                         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
00130                         {
00131                                 if (i->channel)
00132                                 {
00133                                         if (!strcasecmp(i->channel,channel))
00134                                         {
00135                                                 invites.erase(i);
00136                                                 return;
00137                                         }
00138                                 }
00139                         }
00140                 }
00141         }
00142 }
00143 
00144 bool userrec::HasPermission(char* command)
00145 {
00146         char TypeName[MAXBUF],Classes[MAXBUF],ClassName[MAXBUF],CommandList[MAXBUF];
00147         char* mycmd;
00148         char* savept;
00149         char* savept2;
00150         
00151         // users on u-lined servers can completely bypass
00152         // all permissions based checks.
00153         //
00154         // of course, if this is sent to a remote server and this
00155         // server is not ulined there, then that other server
00156         // silently drops the command.
00157         if (is_uline(this->server))
00158                 return true;
00159         
00160         // are they even an oper at all?
00161         if (strchr(this->modes,'o'))
00162         {
00163                 for (int j =0; j < Config->ConfValueEnum("type",&Config->config_f); j++)
00164                 {
00165                         Config->ConfValue("type","name",j,TypeName,&Config->config_f);
00166                         if (!strcmp(TypeName,this->oper))
00167                         {
00168                                 Config->ConfValue("type","classes",j,Classes,&Config->config_f);
00169                                 char* myclass = strtok_r(Classes," ",&savept);
00170                                 while (myclass)
00171                                 {
00172                                         for (int k =0; k < Config->ConfValueEnum("class",&Config->config_f); k++)
00173                                         {
00174                                                 Config->ConfValue("class","name",k,ClassName,&Config->config_f);
00175                                                 if (!strcmp(ClassName,myclass))
00176                                                 {
00177                                                         Config->ConfValue("class","commands",k,CommandList,&Config->config_f);
00178                                                         mycmd = strtok_r(CommandList," ",&savept2);
00179                                                         while (mycmd)
00180                                                         {
00181                                                                 if ((!strcasecmp(mycmd,command)) || (*mycmd == '*'))
00182                                                                 {
00183                                                                         return true;
00184                                                                 }
00185                                                                 mycmd = strtok_r(NULL," ",&savept2);
00186                                                         }
00187                                                 }
00188                                         }
00189                                         myclass = strtok_r(NULL," ",&savept);
00190                                 }
00191                         }
00192                 }
00193         }
00194         return false;
00195 }
00196 
00197 
00198 bool userrec::AddBuffer(std::string a)
00199 {
00200         std::string b = "";
00201         for (unsigned int i = 0; i < a.length(); i++)
00202                 if ((a[i] != '\r') && (a[i] != '\0') && (a[i] != 7))
00203                         b = b + a[i];
00204         std::stringstream stream(recvq);
00205         stream << b;
00206         recvq = stream.str();
00207         unsigned int i = 0;
00208         // count the size of the first line in the buffer.
00209         while (i < recvq.length())
00210         {
00211                 if (recvq[i++] == '\n')
00212                         break;
00213         }
00214         if (recvq.length() > (unsigned)this->recvqmax)
00215         {
00216                 this->SetWriteError("RecvQ exceeded");
00217                 WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
00218         }
00219         // return false if we've had more than 600 characters WITHOUT
00220         // a carriage return (this is BAD, drop the socket)
00221         return (i < 600);
00222 }
00223 
00224 bool userrec::BufferIsReady()
00225 {
00226         for (unsigned int i = 0; i < recvq.length(); i++)
00227                 if (recvq[i] == '\n')
00228                         return true;
00229         return false;
00230 }
00231 
00232 void userrec::ClearBuffer()
00233 {
00234         recvq = "";
00235 }
00236 
00237 std::string userrec::GetBuffer()
00238 {
00239         if (recvq == "")
00240                 return "";
00241         char* line = (char*)recvq.c_str();
00242         std::string ret = "";
00243         while ((*line != '\n') && (strlen(line)))
00244         {
00245                 ret = ret + *line;
00246                 line++;
00247         }
00248         if ((*line == '\n') || (*line == '\r'))
00249                 line++;
00250         recvq = line;
00251         return ret;
00252 }
00253 
00254 void userrec::AddWriteBuf(std::string data)
00255 {
00256         if (this->GetWriteError() != "")
00257                 return;
00258         if (sendq.length() + data.length() > (unsigned)this->sendqmax)
00259         {
00260                 WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
00261                 this->SetWriteError("SendQ exceeded");
00262                 return;
00263         }
00264         std::stringstream stream;
00265         stream << sendq << data;
00266         sendq = stream.str();
00267 }
00268 
00269 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
00270 void userrec::FlushWriteBuf()
00271 {
00272         if (sendq.length())
00273         {
00274                 char* tb = (char*)this->sendq.c_str();
00275                 int n_sent = write(this->fd,tb,this->sendq.length());
00276                 if (n_sent == -1)
00277                 {
00278                         this->SetWriteError(strerror(errno));
00279                 }
00280                 else
00281                 {
00282                         // advance the queue
00283                         tb += n_sent;
00284                         this->sendq = tb;
00285                         // update the user's stats counters
00286                         this->bytes_out += n_sent;
00287                         this->cmds_out++;
00288                 }
00289         }
00290 }
00291 
00292 void userrec::SetWriteError(std::string error)
00293 {
00294         log(DEBUG,"Setting error string for %s to '%s'",this->nick,error.c_str());
00295         // don't try to set the error twice, its already set take the first string.
00296         if (this->WriteError == "")
00297                 this->WriteError = error;
00298 }
00299 
00300 std::string userrec::GetWriteError()
00301 {
00302         return this->WriteError;
00303 }

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