]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/users.cpp
Apparently to catch descendent classes we need to catch a reference to the parent...
[user/henk/code/inspircd.git] / src / users.cpp
index c311ffaf37c70f38f882afb745f5efbd4db899e2..c892862730c7a826435030f40225da81ab7a491c 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
+ *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
  *                       E-mail:
  *                <brain@chatspike.net>
  *               <Craig@chatspike.net>
@@ -35,6 +35,7 @@ using namespace std;
 #include "message.h"
 #include "wildcard.h"
 #include "xline.h"
+#include "cull_list.h"
 
 extern InspIRCd* ServerInstance;
 extern int WHOWAS_STALE;
@@ -43,15 +44,13 @@ extern std::vector<Module*> modules;
 extern std::vector<ircd_module*> factory;
 extern std::vector<InspSocket*> module_sockets;
 extern int MODCOUNT;
-extern InspSocket* socket_ref[65535];
+extern InspSocket* socket_ref[MAX_DESCRIPTORS];
 extern time_t TIME;
-extern userrec* fd_ref_table[65536];
-extern serverstats* stats;
+extern userrec* fd_ref_table[MAX_DESCRIPTORS];
 extern ServerConfig *Config;
 extern user_hash clientlist;
 extern whowas_hash whowas;
-extern Module* IOHookModule;
-std::vector<userrec*> local_users;
+extern std::vector<userrec*> local_users;
 
 std::vector<userrec*> all_opers;
 
@@ -65,23 +64,12 @@ template<typename T> inline string ConvToStr(const T &in)
 userrec::userrec()
 {
        // the PROPER way to do it, AVOID bzero at *ALL* costs
-       strcpy(nick,"");
-       strcpy(ip,"127.0.0.1");
-       timeout = 0;
-       strcpy(ident,"");
-       strcpy(host,"");
-       strcpy(dhost,"");
-       strcpy(fullname,"");
-       strcpy(modes,"");
+       *password = *nick = *ident = *host = *dhost = *fullname = *modes = *awaymsg = *oper = 0;
        server = (char*)FindServerNamePtr(Config->ServerName);
-       strcpy(awaymsg,"");
-       strcpy(oper,"");
        reset_due = TIME;
-       lines_in = 0;
-       fd = lastping = signon = idle_lastmsg = nping = registered = 0;
-       flood = port = bytes_in = bytes_out = cmds_in = cmds_out = 0;
-       haspassed = false;
-       dns_done = false;
+       lines_in = fd = lastping = signon = idle_lastmsg = nping = registered = 0;
+       timeout = flood = port = bytes_in = bytes_out = cmds_in = cmds_out = 0;
+       haspassed = dns_done = false;
        recvq = "";
        sendq = "";
        chans.clear();
@@ -92,6 +80,18 @@ userrec::~userrec()
 {
 }
 
+void userrec::MakeHost(char* nhost)
+{
+       /* This is much faster than snprintf */
+       char* t = nhost;
+       for(char* n = ident; *n; n++)
+               *t++ = *n;
+       *t++ = '@';
+       for(char* n = host; *n; n++)
+               *t++ = *n;
+       *t = 0;
+}
+
 void userrec::CloseSocket()
 {
        shutdown(this->fd,2);
@@ -101,10 +101,31 @@ void userrec::CloseSocket()
 char* userrec::GetFullHost()
 {
        static char result[MAXBUF];
-       snprintf(result,MAXBUF,"%s!%s@%s",nick,ident,dhost);
+       char* t = result;
+       for(char* n = nick; *n; n++)
+               *t++ = *n;
+       *t++ = '!';
+       for(char* n = ident; *n; n++)
+               *t++ = *n;
+       *t++ = '@';
+       for(char* n = dhost; *n; n++)
+               *t++ = *n;
+       *t = 0;
        return result;
 }
 
+char* userrec::MakeWildHost()
+{
+       static char nresult[MAXBUF];
+       char* t = nresult;
+       *t++ = '*';     *t++ = '!';
+       *t++ = '*';     *t++ = '@';
+       for(char* n = dhost; *n; n++)
+               *t++ = *n;
+       *t = 0;
+       return nresult;
+}
+
 int userrec::ReadData(void* buffer, size_t size)
 {
        if (this->fd > -1)
@@ -118,7 +139,16 @@ int userrec::ReadData(void* buffer, size_t size)
 char* userrec::GetFullRealHost()
 {
        static char fresult[MAXBUF];
-       snprintf(fresult,MAXBUF,"%s!%s@%s",nick,ident,host);
+       char* t = fresult;
+       for(char* n = nick; *n; n++)
+               *t++ = *n;
+       *t++ = '!';
+       for(char* n = ident; *n; n++)
+               *t++ = *n;
+       *t++ = '@';
+       for(char* n = host; *n; n++)
+               *t++ = *n;
+       *t = 0;
        return fresult;
 }
 
@@ -181,7 +211,7 @@ bool userrec::HasPermission(std::string &command)
                return true;
        
        // are they even an oper at all?
-       if (strchr(this->modes,'o'))
+       if (*this->oper)
        {
                for (int j =0; j < Config->ConfValueEnum("type",&Config->config_f); j++)
                {
@@ -246,7 +276,8 @@ bool userrec::AddBuffer(std::string a)
 
 bool userrec::BufferIsReady()
 {
-        for (unsigned int i = 0; i < recvq.length(); i++)
+       unsigned int t = recvq.length();
+        for (unsigned int i = 0; i < t; i++)
                if (recvq[i] == '\n')
                        return true;
         return false;
@@ -263,7 +294,7 @@ std::string userrec::GetBuffer()
                return "";
         char* line = (char*)recvq.c_str();
         std::string ret = "";
-        while ((*line != '\n') && (strlen(line)))
+        while ((*line != '\n') && (*line))
         {
                 ret = ret + *line;
                 line++;
@@ -296,7 +327,7 @@ void userrec::AddWriteBuf(std::string data)
 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 void userrec::FlushWriteBuf()
 {
-       if (sendq.length())
+       if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
        {
                char* tb = (char*)this->sendq.c_str();
                int n_sent = write(this->fd,tb,this->sendq.length());
@@ -354,7 +385,7 @@ void kill_link(userrec *user,const char* r)
 
         char reason[MAXBUF];
 
-        strncpy(reason,r,MAXBUF);
+        strlcpy(reason,r,MAXBUF);
 
         if (strlen(reason)>MAXQUIT)
         {
@@ -366,19 +397,26 @@ void kill_link(userrec *user,const char* r)
         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
 
         if (user->registered == 7) {
-                FOREACH_MOD OnUserQuit(user,reason);
+                FOREACH_MOD(I_OnUserQuit,OnUserQuit(user,reason));
                 WriteCommonExcept(user,"QUIT :%s",reason);
         }
 
         user->FlushWriteBuf();
 
-        FOREACH_MOD OnUserDisconnect(user);
+        FOREACH_MOD(I_OnUserDisconnect,OnUserDisconnect(user));
 
         if (user->fd > -1)
         {
-               if (IOHookModule)
+               if (Config->GetIOHook(user->port))
                {
-                       IOHookModule->OnRawSocketClose(user->fd);
+                       try
+                       {
+                               Config->GetIOHook(user->port)->OnRawSocketClose(user->fd);
+                       }
+                        catch (ModuleException& modexcept)
+                        {
+                                log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
+                        }
                }
                 ServerInstance->SE->DelFd(user->fd);
                 user->CloseSocket();
@@ -417,7 +455,7 @@ void kill_link_silent(userrec *user,const char* r)
 
         char reason[MAXBUF];
 
-        strncpy(reason,r,MAXBUF);
+        strlcpy(reason,r,MAXBUF);
 
         if (strlen(reason)>MAXQUIT)
         {
@@ -431,17 +469,24 @@ void kill_link_silent(userrec *user,const char* r)
         user->FlushWriteBuf();
 
         if (user->registered == 7) {
-                FOREACH_MOD OnUserQuit(user,reason);
+                FOREACH_MOD(I_OnUserQuit,OnUserQuit(user,reason));
                 WriteCommonExcept(user,"QUIT :%s",reason);
         }
 
-        FOREACH_MOD OnUserDisconnect(user);
+        FOREACH_MOD(I_OnUserDisconnect,OnUserDisconnect(user));
 
         if (user->fd > -1)
         {
-               if (IOHookModule)
+               if (Config->GetIOHook(user->port))
                {
-                       IOHookModule->OnRawSocketClose(user->fd);
+                       try
+                       {
+                               Config->GetIOHook(user->port)->OnRawSocketClose(user->fd);
+                       }
+                        catch (ModuleException& modexcept)
+                        {
+                                log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
+                        }
                }
                 ServerInstance->SE->DelFd(user->fd);
                 user->CloseSocket();
@@ -479,7 +524,8 @@ void AddWhoWas(userrec* u)
         strlcpy(a->dhost,u->dhost,160);
         strlcpy(a->host,u->host,160);
         strlcpy(a->fullname,u->fullname,MAXGECOS);
-        strlcpy(a->server,u->server,256);
+       if (u->server)
+               strlcpy(a->server,u->server,256);
         a->signon = u->signon;
 
         /* MAX_WHOWAS:   max number of /WHOWAS items
@@ -523,14 +569,14 @@ void AddWhoWas(userrec* u)
 }
 
 /* add a client connection to the sockets list */
-void AddClient(int socket, char* host, int port, bool iscached, char* ip)
+void AddClient(int socket, int port, bool iscached, in_addr ip4)
 {
         string tempnick;
         char tn2[MAXBUF];
         user_hash::iterator iter;
 
         tempnick = ConvToStr(socket) + "-unknown";
-        sprintf(tn2,"%lu-unknown",(unsigned long)socket);
+        sprintf(tn2,"%d-unknown",socket);
 
         iter = clientlist.find(tempnick);
 
@@ -557,20 +603,24 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
          */
         clientlist[tempnick] = new userrec();
 
-        NonBlocking(socket);
-        log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
+       char *ipaddr = (char*)inet_ntoa(ip4);
+
+        log(DEBUG,"AddClient: %d %d %s",socket,port,ipaddr);
 
         clientlist[tempnick]->fd = socket;
         strlcpy(clientlist[tempnick]->nick, tn2,NICKMAX);
-        strlcpy(clientlist[tempnick]->host, host,160);
-        strlcpy(clientlist[tempnick]->dhost, host,160);
+       /* We don't know the host yet, dns lookup could still be going on,
+        * so instead we just put the ip address here, for now.
+        */
+        strlcpy(clientlist[tempnick]->host, ipaddr, 160);
+        strlcpy(clientlist[tempnick]->dhost, ipaddr, 160);
         clientlist[tempnick]->server = (char*)FindServerNamePtr(Config->ServerName);
         strlcpy(clientlist[tempnick]->ident, "unknown",IDENTMAX);
         clientlist[tempnick]->registered = 0;
         clientlist[tempnick]->signon = TIME + Config->dns_timeout;
         clientlist[tempnick]->lastping = 1;
+       clientlist[tempnick]->ip4 = ip4;
         clientlist[tempnick]->port = port;
-        strlcpy(clientlist[tempnick]->ip,ip,16);
 
         // set the registration timeout for this user
         unsigned long class_regtimeout = 90;
@@ -581,7 +631,7 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
 
         for (ClassVector::iterator i = Config->Classes.begin(); i != Config->Classes.end(); i++)
         {
-                if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
+                if (match(ipaddr,i->host.c_str()) && (i->type == CC_ALLOW))
                 {
                         class_regtimeout = (unsigned long)i->registration_timeout;
                         class_flood = i->flood;
@@ -606,13 +656,13 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
         for (int i = 0; i < MAXCHANS; i++)
                 clientlist[tempnick]->chans.push_back(a);
 
-        if (clientlist.size() > Config->SoftLimit)
+        if (local_users.size() > Config->SoftLimit)
         {
                 kill_link(clientlist[tempnick],"No more connections allowed");
                 return;
         }
 
-        if (clientlist.size() >= MAXCLIENTS)
+        if (local_users.size() >= MAXCLIENTS)
         {
                 kill_link(clientlist[tempnick],"No more connections allowed");
                 return;
@@ -625,15 +675,15 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
         // irc server at once (or the irc server otherwise initiating this many connections, files etc)
         // which for the time being is a physical impossibility (even the largest networks dont have more
         // than about 10,000 users on ONE server!)
-        if ((unsigned)socket > 65534)
+        if ((unsigned)socket > MAX_DESCRIPTORS)
         {
                 kill_link(clientlist[tempnick],"Server is full");
                 return;
         }
-        char* e = matches_exception(ip);
+        char* e = matches_exception(ipaddr);
         if (!e)
         {
-                char* r = matches_zline(ip);
+                char* r = matches_zline(ipaddr);
                 if (r)
                 {
                         char reason[MAXBUF];
@@ -645,24 +695,63 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
         fd_ref_table[socket] = clientlist[tempnick];
        local_users.push_back(clientlist[tempnick]);
         ServerInstance->SE->AddFd(socket,true,X_ESTAB_CLIENT);
+
+       WriteServ(clientlist[tempnick]->fd,"NOTICE Auth :*** Looking up your hostname...");
 }
 
-void FullConnectUser(userrec* user)
+long FindMatchingGlobal(userrec* user)
 {
-        stats->statsConnects++;
+       long x = 0;
+       for (user_hash::const_iterator a = clientlist.begin(); a != clientlist.end(); a++)
+       {
+               if (a->second->ip4.s_addr == user->ip4.s_addr)
+                       x++;
+       }
+       return x;
+}
+
+long FindMatchingLocal(userrec* user)
+{
+       long x = 0;
+       for (std::vector<userrec*>::const_iterator a = local_users.begin(); a != local_users.end(); a++)
+       {
+               userrec* comp = (userrec*)(*a);
+               if (comp->ip4.s_addr == user->ip4.s_addr)
+                       x++;
+       }
+       return x;
+}
+
+void FullConnectUser(userrec* user, CullList* Goners)
+{
+        ServerInstance->stats->statsConnects++;
         user->idle_lastmsg = TIME;
         log(DEBUG,"ConnectUser: %s",user->nick);
 
-        if ((strcmp(Passwd(user),"")) && (!user->haspassed))
-        {
-                kill_link(user,"Invalid password");
-                return;
-        }
-        if (IsDenied(user))
+       ConnectClass a = GetClass(user);
+       
+       if (a.type == CC_DENY)
+       {
+               Goners->AddItem(user,"Unauthorised connection");
+               return;
+       }
+       if ((*(a.pass.c_str())) && (!user->haspassed))
         {
-                kill_link(user,"Unauthorised connection");
+               Goners->AddItem(user,"Invalid password");
                 return;
         }
+       if (FindMatchingLocal(user) > a.maxlocal)
+       {
+               Goners->AddItem(user,"No more connections allowed from your host via this connect class (local)");
+               WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s",a.maxlocal,(char*)inet_ntoa(user->ip4));
+               return;
+       }
+       else if (FindMatchingGlobal(user) > a.maxglobal)
+       {
+               Goners->AddItem(user,"No more connections allowed from your host via this connect class (global)");
+               WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s",a.maxglobal,(char*)inet_ntoa(user->ip4));
+               return;
+       }
 
         char match_against[MAXBUF];
         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
@@ -674,7 +763,7 @@ void FullConnectUser(userrec* user)
                 {
                         char reason[MAXBUF];
                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
-                        kill_link_silent(user,reason);
+                       Goners->AddItem(user,reason);
                         return;
                 }
                 r = matches_kline(user->host);
@@ -682,7 +771,7 @@ void FullConnectUser(userrec* user)
                 {
                         char reason[MAXBUF];
                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
-                        kill_link_silent(user,reason);
+                        Goners->AddItem(user,reason);
                         return;
                 }
         }
@@ -692,18 +781,10 @@ void FullConnectUser(userrec* user)
         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Config->Network,user->nick,user->ident,user->host);
         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,Config->ServerName,VERSION);
         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
-        WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,Config->ServerName,VERSION);
-        // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
-        std::stringstream v;
-        v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
-        v << " MAXBANS=60 NICKLEN=" << NICKMAX;
-        v << " TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=20 AWAYLEN=" << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=";
-        v << Config->Network;
-        std::string data005 = v.str();
-        FOREACH_MOD On005Numeric(data005);
+        WriteServ(user->fd,"004 %s %s %s iowghrasxRVSCWBG lvhopsmntikrcaqbegIOLQRSKVHGCNT vhobeIaqglk",user->nick,Config->ServerName,VERSION);
         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
         // so i'd better split it :)
-        std::stringstream out(data005);
+        std::stringstream out(Config->data005);
         std::string token = "";
         std::string line5 = "";
         int token_counter = 0;
@@ -723,21 +804,10 @@ void FullConnectUser(userrec* user)
 
         // fix 3 by brain, move registered = 7 below these so that spurious modes and host changes dont go out
         // onto the network and produce 'fake direction'
-        FOREACH_MOD OnUserConnect(user);
-        FOREACH_MOD OnGlobalConnect(user);
+        FOREACH_MOD(I_OnUserConnect,OnUserConnect(user));
+        FOREACH_MOD(I_OnGlobalConnect,OnGlobalConnect(user));
         user->registered = 7;
-        WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
-}
-
-
-/* shows the message of the day, and any other on-logon stuff */
-void ConnectUser(userrec *user)
-{
-        // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
-        if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
-        {
-                FullConnectUser(user);
-        }
+        WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,(char*)inet_ntoa(user->ip4));
 }
 
 /* re-allocates a nick in the user_hash after they change nicknames,
@@ -774,17 +844,17 @@ void force_nickchange(userrec* user,const char* newnick)
         char nick[MAXBUF];
         int MOD_RESULT = 0;
 
-        strcpy(nick,"");
+        *nick = 0;
 
-        FOREACH_RESULT(OnUserPreNick(user,newnick));
+        FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(user,newnick));
         if (MOD_RESULT) {
-                stats->statsCollisions++;
+                ServerInstance->stats->statsCollisions++;
                 kill_link(user,"Nickname collision");
                 return;
         }
         if (matches_qline(newnick))
         {
-                stats->statsCollisions++;
+               ServerInstance->stats->statsCollisions++;
                 kill_link(user,"Nickname collision");
                 return;
         }
@@ -793,13 +863,14 @@ void force_nickchange(userrec* user,const char* newnick)
         {
                 if (newnick)
                 {
-                        strncpy(nick,newnick,MAXBUF);
+                        strlcpy(nick,newnick,MAXBUF);
                 }
                 if (user->registered == 7)
                 {
                         char* pars[1];
                         pars[0] = nick;
-                        handle_nick(pars,1,user);
+                       std::string cmd = "NICK";
+                        ServerInstance->Parser->CallHandler(cmd,pars,1,user);
                 }
         }
 }