#ifdef LEAF /* * servmsg.c -- part of server.mod * */ #ifdef S_NODELAY #include #endif #define msgop CFG_MSGOP.ldata ? CFG_MSGOP.ldata : CFG_MSGOP.gdata ? CFG_MSGOP.gdata : "" #define msgpass CFG_MSGPASS.ldata ? CFG_MSGPASS.ldata : CFG_MSGPASS.gdata ? CFG_MSGPASS.gdata : "" #define msginvite CFG_MSGINVITE.ldata ? CFG_MSGINVITE.ldata : CFG_MSGINVITE.gdata ? CFG_MSGINVITE.gdata : "" #define msgident CFG_MSGIDENT.ldata ? CFG_MSGIDENT.ldata : CFG_MSGIDENT.gdata ? CFG_MSGIDENT.gdata : "" char cursrvname[120]=""; static time_t last_ctcp = (time_t) 0L; static int count_ctcp = 0; static char altnick_char = 0; /* We try to change to a preferred unique nick here. We always first try the * specified alternate nick. If that failes, we repeatedly modify the nick * until it gets accepted. * * sent nick: * "" * ^--- additional count character: 1-9^-_\\[]`a-z * ^--------- given, alternate nick * * The last added character is always saved in altnick_char. At the very first * attempt (were altnick_char is 0), we try the alternate nick without any * additions. * * fixed by guppy (1999/02/24) and Fabian (1999/11/26) */ int rolls = 0; static int gotfake433(char *from) { int l = strlen(botname) - 1; int use_chr = 1; char *altchrs = STR("-_\\`^[]"); /* First run? */ if (altnick_char == 0) { altnick_char = altchrs[0]; /* the nick is already as long as it can be. */ if (l + 1 == nick_len) { /* make the last char the altnick_char */ botname[l] = altnick_char; } else { /* tack it on to the end */ botname[++l] = altnick_char; botname[l + 1] = 0; } } else { char *p = strchr(altchrs, altnick_char); p++; if (!*p) { /* fun BX style rolling, WEEEE */ if (rolls < 10) { char tmp; if (rolls == 0) strcpy(botname, origbotname); tmp = botname[8]; if (strchr(BADNICKCHARS, tmp)) tmp = '_'; altnick_char = 0; use_chr = 0; rolls++; botname[8] = botname[7]; botname[7] = botname[6]; botname[6] = botname[5]; botname[5] = botname[4]; botname[4] = botname[3]; botname[3] = botname[2]; botname[2] = botname[1]; botname[1] = botname[0]; botname[0] = tmp; } else { /* when we run out of 'altchrs', then make altnick_char a random alpha */ altnick_char = 'a' + random() % 26; } } else { /* else, make altnick_char the 'oknick' */ altnick_char = (*p); } if (use_chr) botname[l] = altnick_char; } putlog(LOG_SERV, "*", IRC_BOTNICKINUSE, botname); dprintf(DP_SERVER, "NICK %s\n", botname); return 0; } /* Check for tcl-bound msg command, return 1 if found * * msg: proc-name */ static int check_msg(char *cmd, char *nick, char *uhost, struct userrec *u, char *args) { struct flag_record fr = {FR_GLOBAL | FR_CHAN | FR_ANYWH, 0, 0, 0, 0, 0}; int x; get_user_flagrec(u, &fr, NULL); x = check_bind(BT_msg, cmd, &fr, nick, uhost, u, args); if (x & BIND_RET_LOG) putlog(LOG_CMDS, "*", "in check_msg (%s!%s) !%s! %s %s", nick, uhost, u ? u->handle : "*" , args); if (x) return(1); else return(0); } #ifdef S_AUTH static int check_msgc(char *cmd, char *nick, char *from, struct userrec *u, char *args) { struct flag_record fr = {FR_GLOBAL | FR_CHAN, 0, 0, 0, 0, 0}; int x; x = check_bind(BT_msgc, cmd, &fr, nick, from, u, args, NULL); if (x & BIND_RET_LOG) putlog(LOG_CMDS, "*", " in check_msgc(%s!%s) !%s! %s%s %s", nick, from, u ? u->handle : "*", cmdprefix, cmd, args); if (x & BIND_RET_BREAK) return(1); return(0); } #endif /* S_AUTH */ /* Return 1 if processed. */ static int check_raw(char *from, char *code, char *msg) { // return check_bind(BT_raw, code, NULL, from, code, msg); return check_bind(BT_raw, code, NULL, from, msg); } static int check_ctcpr(char *nick, char *uhost, struct userrec *u, char *dest, char *keyword, char *args, bind_table_t *table) { struct flag_record fr = {FR_GLOBAL | FR_CHAN | FR_ANYWH, 0, 0, 0, 0, 0}; get_user_flagrec(u, &fr, NULL); return check_bind(table, keyword, &fr, nick, uhost, u, dest, keyword, args); } static int match_my_nick(char *nick) { if (!rfc_casecmp(nick, botname)) return 1; return 0; } /* 001: welcome to IRC (use it to fix the server name) */ static int got001(char *from, char *msg) { struct server_list *x; int i, servidx = findanyidx(serv); struct chanset_t *chan; /* Ok...param #1 of 001 = what server thinks my nick is */ server_online = now; checked_hostmask = 0; fixcolon(msg); strncpyz(botname, msg, NICKLEN); altnick_char = 0; strncpyz(cursrvname, from, sizeof(cursrvname)); dprintf(DP_SERVER, "WHOIS %s\n", botname); /* get user@host */ dprintf(DP_SERVER, "MODE %s +iws\n"); x = serverlist; if (x == NULL) return 0; /* Uh, no server list */ /* Only join if the IRC module is loaded. */ if (module_find("irc", 0, 0)) for (chan = chanset; chan; chan = chan->next) { chan->status &= ~(CHAN_ACTIVE | CHAN_PEND); if (shouldjoin(chan)) dprintf(DP_SERVER, "JOIN %s %s\n", (chan->name[0]) ? chan->name : chan->dname, chan->channel.key[0] ? chan->channel.key : chan->key_prot); } if (egg_strcasecmp(from, dcc[servidx].host)) { putlog(LOG_MISC, "*", "(%s claims to be %s; updating server list)", dcc[servidx].host, from); for (i = curserv; i > 0 && x != NULL; i--) x = x->next; if (x == NULL) { putlog(LOG_MISC, "*", "Invalid server list!"); return 0; } if (x->realname) nfree(x->realname); if (strict_servernames == 1) { x->realname = NULL; if (x->name) nfree(x->name); x->name = nmalloc(strlen(from) + 1); strcpy(x->name, from); } else { x->realname = nmalloc(strlen(from) + 1); strcpy(x->realname, from); } } return 0; } /* Got 442: not on channel */ static int got442(char *from, char *msg) { char *chname; struct chanset_t *chan; struct server_list *x; int i; for (x = serverlist, i = 0; x; x = x->next, i++) if (i == curserv) { if (egg_strcasecmp(from, x->realname ? x->realname : x->name)) return 0; break; } newsplit(&msg); chname = newsplit(&msg); chan = findchan(chname); if (chan) if (shouldjoin(chan)) { module_entry *me = module_find("channels", 0, 0); putlog(LOG_MISC, chname, IRC_SERVNOTONCHAN, chname); if (me && me->funcs) (me->funcs[CHANNEL_CLEAR])(chan, 1); chan->status &= ~CHAN_ACTIVE; dprintf(DP_MODE, "JOIN %s %s\n", chan->name, chan->channel.key[0] ? chan->channel.key : chan->key_prot); } return 0; } /* Close the current server connection. */ static void nuke_server(char *reason) { if (serv >= 0) { int servidx = findanyidx(serv); if (reason && (servidx > 0)) dprintf(servidx, "QUIT :%s\n", reason); disconnect_server(servidx); lostdcc(servidx); } } static char ctcp_reply[1024] = ""; static int lastmsgs[FLOOD_GLOBAL_MAX]; static char lastmsghost[FLOOD_GLOBAL_MAX][81]; static time_t lastmsgtime[FLOOD_GLOBAL_MAX]; /* Do on NICK, PRIVMSG, NOTICE and JOIN. */ static int detect_flood(char *floodnick, char *floodhost, char *from, int which) { char *p, ftype[10], h[1024]; struct userrec *u; int thr = 0, lapse = 0, atr; u = get_user_by_host(from); atr = u ? u->flags : 0; if (atr & (USER_BOT)) return 0; #ifdef S_AUTH if (findauth(floodhost) > -1) return 0; #endif /* S_AUTH */ /* Determine how many are necessary to make a flood */ switch (which) { case FLOOD_PRIVMSG: case FLOOD_NOTICE: thr = flud_thr; lapse = flud_time; strcpy(ftype, "msg"); break; case FLOOD_CTCP: thr = flud_ctcp_thr; lapse = flud_ctcp_time; strcpy(ftype, "ctcp"); break; } if ((thr == 0) || (lapse == 0)) return 0; /* No flood protection */ /* Okay, make sure i'm not flood-checking myself */ if (match_my_nick(floodnick)) return 0; if (!egg_strcasecmp(floodhost, botuserhost)) return 0; /* My user@host (?) */ p = strchr(floodhost, '@'); if (p) { p++; if (egg_strcasecmp(lastmsghost[which], p)) { /* New */ strcpy(lastmsghost[which], p); lastmsgtime[which] = now; lastmsgs[which] = 0; return 0; } } else return 0; /* Uh... whatever. */ if (lastmsgtime[which] < now - lapse) { /* Flood timer expired, reset it */ lastmsgtime[which] = now; lastmsgs[which] = 0; return 0; } lastmsgs[which]++; if (lastmsgs[which] >= thr) { /* FLOOD */ /* Reset counters */ lastmsgs[which] = 0; lastmsgtime[which] = 0; lastmsghost[which][0] = 0; u = get_user_by_host(from); /* Private msg */ simple_sprintf(h, "*!*@%s", p); putlog(LOG_MISC, "*", IRC_FLOODIGNORE1, p); addignore(h, botnetnick, (which == FLOOD_CTCP) ? "CTCP flood" : "MSG/NOTICE flood", now + (60 * ignore_time)); } return 0; } /* Check for more than 8 control characters in a line. * This could indicate: beep flood CTCP avalanche. */ static int detect_avalanche(char *msg) { int count = 0; unsigned char *p; for (p = (unsigned char *) msg; (*p) && (count < 8); p++) if ((*p == 7) || (*p == 1)) count++; if (count >= 8) return 1; else return 0; } /* Got a private message. */ static int gotmsg(char *from, char *msg) { char *to, buf[UHOSTLEN], *nick, ctcpbuf[512], *uhost = buf, *ctcp; char *p, *p1, *code; struct userrec *u; int ctcp_count = 0; #ifdef S_AUTH int i = 0; #endif /* S_AUTH */ int ignoring = 0; if (msg[0] && ((strchr(CHANMETA, *msg) != NULL) || (*msg == '@'))) /* Notice to a channel, not handled here */ return 0; ignoring = match_ignore(from); to = newsplit(&msg); fixcolon(msg); /* Only check if flood-ctcp is active */ strcpy(uhost, from); nick = splitnick(&uhost); if (flud_ctcp_thr && detect_avalanche(msg)) { if (!ignoring) { putlog(LOG_MODES, "*", "Avalanche from %s - ignoring", from); p = strchr(uhost, '@'); if (p != NULL) p++; else p = uhost; simple_sprintf(ctcpbuf, "*!*@%s", p); addignore(ctcpbuf, botnetnick, "ctcp avalanche", now + (60 * ignore_time)); } } /* Check for CTCP: */ ctcp_reply[0] = 0; p = strchr(msg, 1); while ((p != NULL) && (*p)) { p++; p1 = p; while ((*p != 1) && (*p != 0)) p++; if (*p == 1) { *p = 0; ctcp = strcpy(ctcpbuf, p1); strcpy(p1 - 1, p + 1); if (!ignoring) detect_flood(nick, uhost, from, strncmp(ctcp, "ACTION ", 7) ? FLOOD_CTCP : FLOOD_PRIVMSG); /* Respond to the first answer_ctcp */ p = strchr(msg, 1); if (ctcp_count < answer_ctcp) { ctcp_count++; if (ctcp[0] != ' ') { code = newsplit(&ctcp); if ((to[0] == '$') || strchr(to, '.')) { if (!ignoring) /* Don't interpret */ putlog(LOG_PUBLIC, to, "CTCP %s: %s from %s (%s) to %s", code, ctcp, nick, uhost, to); } else { u = get_user_by_host(from); if (!ignoring || trigger_on_ignore) { if (!check_ctcp(nick, uhost, u, to, code, ctcp) && !ignoring) { if ((lowercase_ctcp && !egg_strcasecmp(code, "DCC")) || (!lowercase_ctcp && !strcmp(code, "DCC"))) { /* If it gets this far unhandled, it means that * the user is totally unknown. */ code = newsplit(&ctcp); if (!strcmp(code, "CHAT")) { if (!quiet_reject) { if (u) dprintf(DP_HELP, "NOTICE %s :%s\n", nick, "I'm not accepting call at the moment."); else dprintf(DP_HELP, "NOTICE %s :%s\n", nick, DCC_NOSTRANGERS); } if (!ischanhub()) putlog(LOG_MISC, "*", "%s: %s", DCC_REFUSEDNC, from); else putlog(LOG_MISC, "*", "%s: %s", DCC_REFUSED, from); } else putlog(LOG_MISC, "*", "Refused DCC %s: %s", code, from); } } if (!strcmp(code, "ACTION")) { putlog(LOG_MSGS, "*", "Action to %s: %s %s", to, nick, ctcp); } else { putlog(LOG_MSGS, "*", "CTCP %s: %s from %s (%s)", code, ctcp, nick, uhost); } /* I love a good close cascade ;) */ } } } } } } /* Send out possible ctcp responses */ if (ctcp_reply[0]) { if (ctcp_mode != 2) { dprintf(DP_HELP, "NOTICE %s :%s\n", nick, ctcp_reply); } else { if (now - last_ctcp > flud_ctcp_time) { dprintf(DP_HELP, "NOTICE %s :%s\n", nick, ctcp_reply); count_ctcp = 1; } else if (count_ctcp < flud_ctcp_thr) { dprintf(DP_HELP, "NOTICE %s :%s\n", nick, ctcp_reply); count_ctcp++; } last_ctcp = now; } } if (msg[0]) { if ((to[0] == '$') || (strchr(to, '.') != NULL)) { /* Msg from oper */ if (!ignoring) { detect_flood(nick, uhost, from, FLOOD_PRIVMSG); /* Do not interpret as command */ putlog(LOG_MSGS | LOG_SERV, "*", "[%s!%s to %s] %s",nick, uhost, to, msg); } } else { char *code; struct userrec *u; detect_flood(nick, uhost, from, FLOOD_PRIVMSG); u = get_user_by_host(from); code = newsplit(&msg); rmspace(msg); #ifdef S_AUTH i = findauth(uhost); /* is it a cmd? */ if (i > -1 && auth[i].authed && code[0] == cmdprefix[0] && code[1]) { code++; u = auth[i].user; if (check_msgc(code, nick, uhost, u, msg)) auth[i].atime = now; else putlog(LOG_MSGS, "*", "[%s] %s %s", from, code, msg); } else if ((code[0] != cmdprefix[0] || !code[1] || i == -1 || !(auth[i].authed))) { #endif /* S_AUTH */ if (!ignoring) { int doit = 1, result = 0; #ifdef S_MSGCMDS if (!egg_strcasecmp(code, "op") || !egg_strcasecmp(code, "pass") || !egg_strcasecmp(code, "invite") || !egg_strcasecmp(code, "ident") || !egg_strcasecmp(code, msgop) || !egg_strcasecmp(code, msgpass) || !egg_strcasecmp(code, msginvite) || !egg_strcasecmp(code, msgident)) { /* || !strcmp(code, msgop) || !strcmp(code, msgpass) || !strcmp(code, msgop)) { */ char buf[10]; doit = 0; buf[0] = 0; if (!egg_strcasecmp(code, msgop)) sprintf(buf, "op"); else if (!egg_strcasecmp(code, msgpass)) sprintf(buf, "pass"); else if (!egg_strcasecmp(code, msginvite)) sprintf(buf, "invite"); else if (!egg_strcasecmp(code, msgident)) sprintf(buf, "ident"); if (buf[0]) result = check_msg(buf, nick, uhost, u, msg); } #endif /* S_MSGCMDS */ if (doit) result = check_msg(code, nick, uhost, u, msg); if (!result) putlog(LOG_MSGS, "*", " in gotmsg [%s] %s %s", from, code, msg); } #ifdef S_AUTH } #endif /* S_AUTH */ } } return 0; } /* Got a private notice. */ static int gotnotice(char *from, char *msg) { char *to, *nick, ctcpbuf[512], *p, *p1, buf[512], *uhost = buf, *ctcp; struct userrec *u; int ignoring; if (msg[0] && ((strchr(CHANMETA, *msg) != NULL) || (*msg == '@'))) /* Notice to a channel, not handled here */ return 0; ignoring = match_ignore(from); to = newsplit(&msg); fixcolon(msg); strcpy(uhost, from); nick = splitnick(&uhost); if (flud_ctcp_thr && detect_avalanche(msg)) { /* Discard -- kick user if it was to the channel */ if (!ignoring) putlog(LOG_MODES, "*", "Avalanche from %s", from); return 0; } /* Check for CTCP: */ p = strchr(msg, 1); while ((p != NULL) && (*p)) { p++; p1 = p; while ((*p != 1) && (*p != 0)) p++; if (*p == 1) { *p = 0; ctcp = strcpy(ctcpbuf, p1); strcpy(p1 - 1, p + 1); if (!ignoring) detect_flood(nick, uhost, from, FLOOD_CTCP); p = strchr(msg, 1); if (ctcp[0] != ' ') { char *code = newsplit(&ctcp); if ((to[0] == '$') || strchr(to, '.')) { if (!ignoring) putlog(LOG_PUBLIC, "*", "CTCP reply %s: %s from %s (%s) to %s", code, ctcp, nick, uhost, to); } else { u = get_user_by_host(from); if (!ignoring || trigger_on_ignore) { check_ctcr(nick, uhost, u, to, code, ctcp); if (!ignoring) /* Who cares? */ putlog(LOG_MSGS, "*", "CTCP reply %s: %s from %s (%s) to %s", code, ctcp, nick, uhost, to); } } } } } if (msg[0]) { if (((to[0] == '$') || strchr(to, '.')) && !ignoring) { detect_flood(nick, uhost, from, FLOOD_NOTICE); putlog(LOG_MSGS | LOG_SERV, "*", "-%s (%s) to %s- %s", nick, uhost, to, msg); } else { /* Server notice? */ if ((nick[0] == 0) || (uhost[0] == 0)) { /* Hidden `250' connection count message from server */ if (strncmp(msg, "Highest connection count:", 25)) putlog(LOG_SERV, "*", "-NOTICE- %s", msg); } else { detect_flood(nick, uhost, from, FLOOD_NOTICE); u = get_user_by_host(from); if (!ignoring) putlog(LOG_MSGS, "*", "-%s (%s)- %s", nick, uhost, msg); } } } return 0; } /* WALLOPS: oper's nuisance */ static int gotwall(char *from, char *msg) { char *nick; fixcolon(msg); /* Following is not needed at all, but we'll keep it for compatibility sak$ * so not to confuse possible scripts that are parsing log files. */ if (strchr(from, '!')) { nick = splitnick(&from); putlog(LOG_WALL, "*", "!%s(%s)! %s", nick, from, msg); } else putlog(LOG_WALL, "*", "!%s! %s", from, msg); return 0; } static void server_10secondly() { if (server_online && keepnick) { /* NOTE: now that botname can but upto NICKLEN bytes long, * check that it's not just a truncation of the full nick. */ if (strncmp(botname, origbotname, strlen(botname))) { /* See if my nickname is in use and if if my nick is right. */ dprintf(DP_SERVER, "ISON :%s %s\n", botname, origbotname); } } } /* Called once a minute... but if we're the only one on the * channel, we only wanna send out "lusers" once every 5 mins. */ static void minutely_checks() { /* Only check if we have already successfully logged in. */ if (server_online) { static int count = 4; int ok = 0; struct chanset_t *chan; for (chan = chanset; chan; chan = chan->next) { if (channel_active(chan) && chan->channel.members == 1) { ok = 1; break; } } if (!ok) return; count++; if (count >= 5) { dprintf(DP_SERVER, "LUSERS\n"); count = 0; } } } /* Pong from server. */ static int gotpong(char *from, char *msg) { newsplit(&msg); fixcolon(msg); /* Scrap server name */ server_lag = now - my_atoul(msg); if (server_lag > 99999) { /* IRCnet lagmeter support by drummer */ server_lag = now - lastpingtime; } return 0; } /* This is a reply on ISON : [] */ static void got303(char *from, char *msg) { char *tmp; int ison_orig = 0; if (!keepnick || !strncmp(botname, origbotname, strlen(botname))) { return; } newsplit(&msg); fixcolon(msg); tmp = newsplit(&msg); if (tmp[0] && !rfc_casecmp(botname, tmp)) { while ((tmp = newsplit(&msg))[0]) { /* no, it's NOT == */ if (!rfc_casecmp(tmp, origbotname)) ison_orig = 1; } if (!ison_orig) { if (!nick_juped) putlog(LOG_MISC, "*", IRC_GETORIGNICK, origbotname); dprintf(DP_SERVER, "NICK %s\n", origbotname); } } } /* 432 : Bad nickname */ static int got432(char *from, char *msg) { char *erroneus; newsplit(&msg); erroneus = newsplit(&msg); if (server_online) putlog(LOG_MISC, "*", "NICK IS INVALID: %s (keeping '%s').", erroneus, botname); else { putlog(LOG_MISC, "*", IRC_BADBOTNICK); if (!keepnick) { makepass(erroneus); erroneus[NICKMAX] = 0; dprintf(DP_MODE, "NICK %s\n", erroneus); } return 0; } return 0; } /* 433 : Nickname in use * Change nicks till we're acceptable or we give up */ static int got433(char *from, char *msg) { char *tmp; if (server_online) { /* We are online and have a nickname, we'll keep it */ newsplit(&msg); tmp = newsplit(&msg); putlog(LOG_MISC, "*", "NICK IN USE: %s (keeping '%s').", tmp, botname); nick_juped = 0; return 0; } gotfake433(from); return 0; } /* 437 : Nickname juped (IRCnet) */ static int got437(char *from, char *msg) { char *s; struct chanset_t *chan; newsplit(&msg); s = newsplit(&msg); if (s[0] && (strchr(CHANMETA, s[0]) != NULL)) { chan = findchan(s); if (chan) { if (chan->status & CHAN_ACTIVE) { putlog(LOG_MISC, "*", IRC_CANTCHANGENICK, s); } else { if (!channel_juped(chan)) { putlog(LOG_MISC, "*", IRC_CHANNELJUPED, s); chan->status |= CHAN_JUPED; } } } } else if (server_online) { if (!nick_juped) putlog(LOG_MISC, "*", "NICK IS JUPED: %s (keeping '%s').", s, botname); if (!rfc_casecmp(s, origbotname)) nick_juped = 1; } else { putlog(LOG_MISC, "*", "%s: %s", IRC_BOTNICKJUPED, s); gotfake433(from); } return 0; } /* 438 : Nick change too fast */ static int got438(char *from, char *msg) { newsplit(&msg); newsplit(&msg); fixcolon(msg); putlog(LOG_MISC, "*", "%s", msg); return 0; } static int got451(char *from, char *msg) { /* Usually if we get this then we really messed up somewhere * or this is a non-standard server, so we log it and kill the socket * hoping the next server will work :) -poptix */ /* Um, this does occur on a lagged anti-spoof server connection if the * (minutely) sending of joins occurs before the bot does its ping reply. * Probably should do something about it some time - beldin */ putlog(LOG_MISC, "*", IRC_NOTREGISTERED1, from); nuke_server(IRC_NOTREGISTERED2); return 0; } /* Got error notice */ static int goterror(char *from, char *msg) { /* FIXME: fixcolon doesn't do what we need here, this is a temp fix * fixcolon(msg); */ if (msg[0] == ':') msg++; putlog(LOG_SERV, "*", "-ERROR from server- %s", msg); if (serverror_quit) { putlog(LOG_SERV, "*", "Disconnecting from server."); nuke_server("Bah, stupid error messages."); } return 1; } /* Got nick change. */ static int gotnick(char *from, char *msg) { char *nick; struct userrec *u; u = get_user_by_host(from); nick = splitnick(&from); fixcolon(msg); check_queues(nick, msg); if (match_my_nick(nick)) { /* Regained nick! */ strncpyz(botname, msg, NICKLEN); altnick_char = 0; if (!strcmp(msg, origbotname)) { putlog(LOG_SERV | LOG_MISC, "*", "Regained nickname '%s'.", msg); nick_juped = 0; } else if (keepnick && strcmp(nick, msg)) { putlog(LOG_SERV | LOG_MISC, "*", "Nickname changed to '%s'???", msg); if (!rfc_casecmp(nick, origbotname)) { putlog(LOG_MISC, "*", IRC_GETORIGNICK, origbotname); dprintf(DP_SERVER, "NICK %s\n", origbotname); } } else putlog(LOG_SERV | LOG_MISC, "*", "Nickname changed to '%s'???", msg); } else if ((keepnick) && (rfc_casecmp(nick, msg))) { /* Only do the below if there was actual nick change, case doesn't count */ if (!rfc_casecmp(nick, origbotname)) { putlog(LOG_MISC, "*", IRC_GETORIGNICK, origbotname); dprintf(DP_SERVER, "NICK %s\n", origbotname); } } return 0; } static int gotmode(char *from, char *msg) { char *ch; ch = newsplit(&msg); /* Usermode changes? */ if (strchr(CHANMETA, ch[0]) == NULL) { if (match_my_nick(ch) && check_mode_r) { /* umode +r? - D0H dalnet uses it to mean something different */ fixcolon(msg); if ((msg[0] == '+') && strchr(msg, 'r')) { int servidx = findanyidx(serv); putlog(LOG_MISC | LOG_JOIN, "*", "%s has me i-lined (jumping)", dcc[servidx].host); nuke_server("i-lines suck"); } } } return 0; } static void disconnect_server(int idx) { server_online = 0; if (dcc[idx].sock >= 0) killsock(dcc[idx].sock); dcc[idx].sock = (-1); serv = (-1); botuserhost[0] = 0; } static void eof_server(int idx) { putlog(LOG_SERV, "*", "%s %s", IRC_DISCONNECTED, dcc[idx].host); #ifdef S_AUTH { int i = 0; if (ischanhub() && auth_total > 0) { putlog(LOG_DEBUG, "*", "Removing %d auth entries.", auth_total); for (i = 0; i < auth_total; i++) removeauth(i); } } #endif /* S_AUTH */ disconnect_server(idx); lostdcc(idx); } static void display_server(int idx, char *buf) { sprintf(buf, "%s (lag: %d)", trying_server ? "conn" : "serv", server_lag); } static void connect_server(void); static void kill_server(int idx, void *x) { module_entry *me; disconnect_server(idx); if ((me = module_find("channels", 0, 0)) && me->funcs) { struct chanset_t *chan; for (chan = chanset; chan; chan = chan->next) (me->funcs[CHANNEL_CLEAR]) (chan, 1); } /* A new server connection will be automatically initiated in about 2 seconds. */ } static void timeout_server(int idx) { putlog(LOG_SERV, "*", "Timeout: connect to %s", dcc[idx].host); disconnect_server(idx); lostdcc(idx); } static void server_activity(int idx, char *msg, int len); static struct dcc_table SERVER_SOCKET = { "SERVER", 0, eof_server, server_activity, NULL, timeout_server, display_server, NULL, kill_server, NULL }; int isop(char *mode) { int state = 0, cnt = 0; char *p; p = mode; while ((*p) && (*p != ' ')) { if (*p == '-') state = 1; else if (*p == '+') state = 0; else if ((!state) && (*p == 'o')) cnt++; p++; } return (cnt >= 1); } int ismdop(char *mode) { int state = 0, cnt = 0; char *p; p = mode; while ((*p) && (*p != ' ')) { if (*p == '-') state = 1; else if (*p == '+') state = 0; else if ((state) && (*p == 'o')) cnt++; p++; } return (cnt >= 3); } static void server_activity(int idx, char *msg, int len) { char *from, *code; if (trying_server) { strcpy(dcc[idx].nick, "(server)"); putlog(LOG_SERV, "*", "Connected to %s", dcc[idx].host); trying_server = 0; SERVER_SOCKET.timeout_val = 0; } waiting_for_awake = 0; from = ""; if (msg[0] == ':') { msg++; from = newsplit(&msg); } code = newsplit(&msg); if (use_console_r) { if (!strcmp(code, "PRIVMSG") || !strcmp(code, "NOTICE")) { if (!match_ignore(from)) putlog(LOG_RAW, "@", "[@] %s %s %s", from, code, msg); } else putlog(LOG_RAW, "@", "[@] %s %s %s", from, code, msg); } /* This has GOT to go into the raw binding table, * merely because this * is less effecient. */ check_raw(from, code, msg); } static int gotping(char *from, char *msg) { fixcolon(msg); dprintf(DP_MODE, "PONG :%s\n", msg); return 0; } static int gotkick(char *from, char *msg) { char *nick; nick = from; if (rfc_casecmp(nick, botname)) /* Not my kick, I don't need to bother about it. */ return 0; if (use_penalties) { last_time += 2; if (debug_output) putlog(LOG_SRVOUT, "*", "adding 2secs penalty (successful kick)"); } return 0; } /* Another sec penalty if bot did a whois on another server. */ static int whoispenalty(char *from, char *msg) { struct server_list *x = serverlist; int i, ii; if (x && use_penalties) { i = ii = 0; for (; x; x = x->next) { if (i == curserv) { if ((strict_servernames == 1) || !x->realname) { if (strcmp(x->name, from)) ii = 1; } else { if (strcmp(x->realname, from)) ii = 1; } } i++; } if (ii) { last_time += 1; if (debug_output) putlog(LOG_SRVOUT, "*", "adding 1sec penalty (remote whois)"); } } return 0; } static int got311(char *from, char *msg) { char *n1, *n2, *u, *h; n1 = newsplit(&msg); n2 = newsplit(&msg); u = newsplit(&msg); h = newsplit(&msg); if (!n1 || !n2 || !u || !h) return 0; if (match_my_nick(n2)) egg_snprintf(botuserhost, sizeof botuserhost, "%s@%s", u, h); return 0; } static cmd_t my_raw_binds[] = { {"PRIVMSG", "", (Function) gotmsg, NULL}, {"NOTICE", "", (Function) gotnotice, NULL}, {"MODE", "", (Function) gotmode, NULL}, {"PING", "", (Function) gotping, NULL}, {"PONG", "", (Function) gotpong, NULL}, {"WALLOPS", "", (Function) gotwall, NULL}, {"001", "", (Function) got001, NULL}, {"303", "", (Function) got303, NULL}, {"432", "", (Function) got432, NULL}, {"433", "", (Function) got433, NULL}, {"437", "", (Function) got437, NULL}, {"438", "", (Function) got438, NULL}, {"451", "", (Function) got451, NULL}, {"442", "", (Function) got442, NULL}, {"NICK", "", (Function) gotnick, NULL}, {"ERROR", "", (Function) goterror, NULL}, /* ircu2.10.10 has a bug when a client is throttled ERROR is sent wrong */ {"ERROR:", "", (Function) goterror, NULL}, {"KICK", "", (Function) gotkick, NULL}, {"318", "", (Function) whoispenalty, NULL}, {"311", "", (Function) got311, NULL}, {NULL, NULL, NULL, NULL} }; static void server_resolve_success(int); static void server_resolve_failure(int); /* Hook up to a server */ static void connect_server(void) { char pass[121], botserver[UHOSTLEN]; static int oldserv = -1; int servidx; unsigned int botserverport = 0; waiting_for_awake = 0; trying_server = now; empty_msgq(); /* Start up the counter (always reset it if "never-give-up" is on) */ if ((oldserv < 0) || (never_give_up)) oldserv = curserv; if (newserverport) { /* Jump to specified server */ curserv = (-1); /* Reset server list */ strcpy(botserver, newserver); botserverport = newserverport; strcpy(pass, newserverpass); newserver[0] = 0; newserverport = 0; newserverpass[0] = 0; oldserv = (-1); } else pass[0] = 0; if (!cycle_time) { struct chanset_t *chan; struct server_list *x = serverlist; if (!x) return; servidx = new_dcc(&DCC_DNSWAIT, sizeof(struct dns_info)); if (servidx < 0) { putlog(LOG_SERV, "*", "NO MORE DCC CONNECTIONS -- Can't create server connection."); return; } next_server(&curserv, botserver, &botserverport, pass); putlog(LOG_SERV, "*", "%s %s:%d", IRC_SERVERTRY, botserver, botserverport); dcc[servidx].port = botserverport; strcpy(dcc[servidx].nick, "(server)"); strncpyz(dcc[servidx].host, botserver, UHOSTLEN); botuserhost[0] = 0; nick_juped = 0; for (chan = chanset; chan; chan = chan->next) chan->status &= ~CHAN_JUPED; dcc[servidx].timeval = now; dcc[servidx].sock = -1; dcc[servidx].u.dns->host = get_data_ptr(strlen(dcc[servidx].host) + 1); strcpy(dcc[servidx].u.dns->host, dcc[servidx].host); dcc[servidx].u.dns->cbuf = get_data_ptr(strlen(pass) + 1); strcpy(dcc[servidx].u.dns->cbuf, pass); dcc[servidx].u.dns->dns_success = server_resolve_success; dcc[servidx].u.dns->dns_failure = server_resolve_failure; dcc[servidx].u.dns->dns_type = RES_IPBYHOST; dcc[servidx].u.dns->type = &SERVER_SOCKET; if (server_cycle_wait) /* Back to 1st server & set wait time. * Note: Put it here, just in case the server quits on us quickly */ cycle_time = server_cycle_wait; else cycle_time = 0; /* I'm resolving... don't start another server connect request */ resolvserv = 1; /* Resolve the hostname. */ #ifdef USE_IPV6 server_resolve_success(servidx); #else dcc_dnsipbyhost(dcc[servidx].host); #endif /* USE_IPV6 */ } } static void server_resolve_failure(int servidx) { serv = -1; resolvserv = 0; putlog(LOG_SERV, "*", "%s %s (%s)", IRC_FAILEDCONNECT, dcc[servidx].host, IRC_DNSFAILED); lostdcc(servidx); } static void server_resolve_success(int servidx) { int oldserv = dcc[servidx].u.dns->ibuf; #ifdef S_NODELAY int i = 0; #endif char s[121], pass[121]; resolvserv = 0; dcc[servidx].addr = dcc[servidx].u.dns->ip; strcpy(pass, dcc[servidx].u.dns->cbuf); changeover_dcc(servidx, &SERVER_SOCKET, 0); #ifdef USE_IPV6 serv = open_telnet(dcc[servidx].host, dcc[servidx].port); #else serv = open_telnet(iptostr(htonl(dcc[servidx].addr)), dcc[servidx].port); #endif /* USE_IPV6 */ if (serv < 0) { neterror(s); putlog(LOG_SERV, "*", "%s %s (%s)", IRC_FAILEDCONNECT, dcc[servidx].host, s); lostdcc(servidx); if (oldserv == curserv && !never_give_up) fatal("NO SERVERS WILL ACCEPT MY CONNECTION.", 0); } else { dcc[servidx].sock = serv; #ifdef HAVE_SSL if (!ssl_link(dcc[servidx].sock, CONNECT_SSL)) { dcc[servidx].ssl = 0; putlog(LOG_SERV, "*", "SSL for '%s' failed", dcc[servidx].host); } else { putlog(LOG_SERV, "*", "SSL for '%s' successful", dcc[servidx].host); dcc[servidx].ssl = 1; } #else dcc[servidx].ssl = 0; #endif /* HAVE_SSL */ #ifdef S_NODELAY i = 1; setsockopt(serv, 6, TCP_NODELAY, &i, sizeof(i)); #endif /* S_NODELAY */ /* Queue standard login */ dcc[servidx].timeval = now; SERVER_SOCKET.timeout_val = &server_timeout; /* Another server may have truncated it, so use the original */ strcpy(botname, origbotname); /* Start alternate nicks from the beginning */ altnick_char = 0; if (pass[0]) dprintf(DP_MODE, "PASS %s\n", pass); dprintf(DP_MODE, "NICK %s\n", botname); dprintf(DP_MODE, "USER %s . . :%s\n", botuser, botrealname); /* Wait for async result now */ } } #endif /* LEAF */