X-Git-Url: https://jfr.im/git/solanum.git/blobdiff_plain/1766edef79b3792305bc03f4595817669471953c..1548c140218b956485b3fd5c386447a2add59864:/modules/core/m_join.c diff --git a/modules/core/m_join.c b/modules/core/m_join.c index 3ffb9b50..c5cac107 100644 --- a/modules/core/m_join.c +++ b/modules/core/m_join.c @@ -20,14 +20,11 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA - * - * $Id: m_join.c 3494 2007-05-27 13:07:27Z jilles $ */ #include "stdinc.h" #include "channel.h" #include "client.h" -#include "common.h" #include "hash.h" #include "match.h" #include "ircd.h" @@ -40,21 +37,28 @@ #include "parse.h" #include "modules.h" #include "packet.h" +#include "chmode.h" +#include "ratelimit.h" +#include "s_assert.h" +#include "hook.h" + +static const char join_desc[] = "Provides the JOIN and TS6 SJOIN commands to facilitate joining and creating channels"; -static int m_join(struct Client *, struct Client *, int, const char **); -static int ms_join(struct Client *, struct Client *, int, const char **); -static int ms_sjoin(struct Client *, struct Client *, int, const char **); +static void m_join(struct MsgBuf *, struct Client *, struct Client *, int, const char **); +static void ms_join(struct MsgBuf *, struct Client *, struct Client *, int, const char **); +static void ms_sjoin(struct MsgBuf *, struct Client *, struct Client *, int, const char **); static int h_can_create_channel; static int h_channel_join; +static int h_channel_lowerts; struct Message join_msgtab = { - "JOIN", 0, 0, 0, MFLG_SLOW, + "JOIN", 0, 0, 0, 0, {mg_unreg, {m_join, 2}, {ms_join, 2}, mg_ignore, mg_ignore, {m_join, 2}} }; struct Message sjoin_msgtab = { - "SJOIN", 0, 0, 0, MFLG_SLOW, + "SJOIN", 0, 0, 0, 0, {mg_unreg, mg_ignore, mg_ignore, {ms_sjoin, 4}, mg_ignore, mg_ignore} }; @@ -63,59 +67,71 @@ mapi_clist_av1 join_clist[] = { &join_msgtab, &sjoin_msgtab, NULL }; mapi_hlist_av1 join_hlist[] = { { "can_create_channel", &h_can_create_channel }, { "channel_join", &h_channel_join }, + { "channel_lowerts", &h_channel_lowerts }, { NULL, NULL }, }; -DECLARE_MODULE_AV1(join, NULL, NULL, join_clist, join_hlist, NULL, "$Revision: 3494 $"); +DECLARE_MODULE_AV2(join, NULL, NULL, join_clist, join_hlist, NULL, NULL, NULL, join_desc); static void do_join_0(struct Client *client_p, struct Client *source_p); -static int check_channel_name_loc(struct Client *source_p, const char *name); +static bool check_channel_name_loc(struct Client *source_p, const char *name); +static void send_join_error(struct Client *source_p, int numeric, const char *name); -static void set_final_mode(struct Mode *mode, struct Mode *oldmode); +static char *set_final_mode(char *mbuf, char *parabuf, struct Mode *mode, struct Mode *oldmode); static void remove_our_modes(struct Channel *chptr, struct Client *source_p); static void remove_ban_list(struct Channel *chptr, struct Client *source_p, - rb_dlink_list * list, char c, int cap, int mems); - -static char modebuf[MODEBUFLEN]; -static char parabuf[MODEBUFLEN]; -static const char *para[MAXMODEPARAMS]; -static char *mbuf; -static int pargs; + rb_dlink_list * list, char c, int mems); /* Check what we will forward to, without sending any notices to the user * -- jilles */ static struct Channel * check_forward(struct Client *source_p, struct Channel *chptr, - char *key) + char *key, int *err) { int depth = 0, i; + const char *next = NULL; + + /* The caller (m_join) is only interested in the reason + * for the original channel. + */ + if ((*err = can_join(source_p, chptr, key, &next)) == 0) + return chptr; - /* User is +Q */ - if (IsNoForward(source_p)) + /* User is +Q, or forwarding disabled */ + if (IsNoForward(source_p) || !ConfigChannel.use_forward) return NULL; while (depth < 16) { - chptr = find_channel(chptr->mode.forward); + if (next == NULL) + return NULL; + + chptr = find_channel(next); /* Can only forward to existing channels */ if (chptr == NULL) return NULL; - /* Already on there, show original error message */ + /* Already on there... but don't send the original reason for + * being unable to join. It isn't their fault they're already + * on the channel, and it looks hostile otherwise. + * --Elizafox + */ if (IsMember(source_p, chptr)) + { + *err = ERR_USERONCHANNEL; /* I'm borrowing this for now. --Elizafox */ return NULL; + } /* Juped. Sending a warning notice would be unfair */ if (hash_find_resv(chptr->chname)) return NULL; /* Don't forward to +Q channel */ if (chptr->mode.mode & MODE_DISFORWARD) return NULL; - i = can_join(source_p, chptr, key); + + i = can_join(source_p, chptr, key, &next); if (i == 0) return chptr; - if (i != ERR_INVITEONLYCHAN && i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_CHANNELISFULL) - return NULL; depth++; } @@ -124,23 +140,22 @@ check_forward(struct Client *source_p, struct Channel *chptr, /* * m_join - * parv[0] = sender prefix * parv[1] = channel * parv[2] = channel password (key) */ -static int -m_join(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) +static void +m_join(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) { static char jbuf[BUFSIZE]; - struct Channel *chptr = NULL; + struct Channel *chptr = NULL, *chptr2 = NULL; struct ConfItem *aconf; char *name; char *key = NULL; + const char *modes; int i, flags = 0; char *p = NULL, *p2 = NULL; char *chanlist; char *mykey; - int successful_join_count = 0; /* Number of channels successfully joined */ jbuf[0] = '\0'; @@ -161,12 +176,12 @@ m_join(struct Client *client_p, struct Client *source_p, int parc, const char *p /* join 0 parts all channels */ if(*name == '0' && (name[1] == ',' || name[1] == '\0') && name == chanlist) { - (void) strcpy(jbuf, "0"); + rb_strlcpy(jbuf, "0", sizeof(jbuf)); continue; } - /* check it begins with # or &, and local chans are disabled */ - else if(!IsChannelName(name)) + /* check it begins with a valid channel prefix per policy. */ + else if (!IsChannelName(name)) { sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name); @@ -194,7 +209,7 @@ m_join(struct Client *client_p, struct Client *source_p, int parc, const char *p continue; } - if(splitmode && !IsOper(source_p) && (*name != '&') && + if(splitmode && !IsOperGeneral(source_p) && (*name != '&') && ConfigChannel.no_join_on_split) { sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), @@ -247,12 +262,14 @@ m_join(struct Client *client_p, struct Client *source_p, int parc, const char *p if(moduledata.approved != 0) { - sendto_one(source_p, form_str(moduledata.approved), - me.name, source_p->name, name); + if(moduledata.approved != ERR_CUSTOM) + send_join_error(source_p, + moduledata.approved, + name); continue; } - if(splitmode && !IsOper(source_p) && (*name != '&') && + if(splitmode && !IsOperGeneral(source_p) && (*name != '&') && ConfigChannel.no_create_on_split) { sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), @@ -265,20 +282,15 @@ m_join(struct Client *client_p, struct Client *source_p, int parc, const char *p if((rb_dlink_list_length(&source_p->user->channel) >= (unsigned long) ConfigChannel.max_chans_per_user) && - (!IsOper(source_p) || + (!IsExtendChans(source_p) || (rb_dlink_list_length(&source_p->user->channel) >= - (unsigned long) ConfigChannel.max_chans_per_user * 3))) + (unsigned long) ConfigChannel.max_chans_per_user_large))) { sendto_one(source_p, form_str(ERR_TOOMANYCHANNELS), me.name, source_p->name, name); - if(successful_join_count) - source_p->localClient->last_join_time = rb_current_time(); - return 0; + continue; } - if(flags == 0) /* if channel doesn't exist, don't penalize */ - successful_join_count++; - if(chptr == NULL) /* If I already have a chptr, no point doing this */ { chptr = get_or_create_channel(source_p, name, NULL); @@ -287,28 +299,29 @@ m_join(struct Client *client_p, struct Client *source_p, int parc, const char *p { sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), me.name, source_p->name, name); - if(successful_join_count > 0) - successful_join_count--; continue; } } - if(!IsOper(source_p) && !IsExemptSpambot(source_p)) - check_spambot_warning(source_p, name); - - /* can_join checks for +i key, bans etc */ - if((i = can_join(source_p, chptr, key))) + /* If check_forward returns NULL, they couldn't join and there wasn't a usable forward channel. */ + if((chptr2 = check_forward(source_p, chptr, key, &i)) == NULL) { - if ((i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_INVITEONLYCHAN && i != ERR_CHANNELISFULL) || - (!ConfigChannel.use_forward || (chptr = check_forward(source_p, chptr, key)) == NULL)) - { - sendto_one(source_p, form_str(i), me.name, source_p->name, name); - if(successful_join_count > 0) - successful_join_count--; - continue; - } - sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr->chname); + /* might be wrong, but is there any other better location for such? + * see extensions/chm_operonly.c for other comments on this + * -- dwr + */ + if(i != ERR_CUSTOM) + send_join_error(source_p, i, name); + continue; } + else if(chptr != chptr2) + sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr2->chname); + + chptr = chptr2; + + if(flags == 0 && + !IsOperGeneral(source_p) && !IsExemptSpambot(source_p)) + check_spambot_warning(source_p, name); /* add the user to the channel */ add_user_to_channel(chptr, source_p, flags); @@ -320,30 +333,28 @@ m_join(struct Client *client_p, struct Client *source_p, int parc, const char *p } chptr->join_count++; + /* credit user for join */ + credit_client_join(source_p); + /* we send the user their join here, because we could have to * send a mode out next. */ - sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", - source_p->name, - source_p->username, source_p->host, chptr->chname); + send_channel_join(chptr, source_p); /* its a new channel, set +nt and burst. */ if(flags & CHFL_CHANOP) { chptr->channelts = rb_current_time(); - chptr->mode.mode |= MODE_TOPICLIMIT; - chptr->mode.mode |= MODE_NOPRIVMSGS; + chptr->mode.mode |= ConfigChannel.autochanmodes; + modes = channel_modes(chptr, &me); - sendto_channel_local(ONLY_CHANOPS, chptr, ":%s MODE %s +nt", - me.name, chptr->chname); + sendto_channel_local(&me, ONLY_CHANOPS, chptr, ":%s MODE %s %s", + me.name, chptr->chname, modes); - if(*chptr->chname == '#') - { - sendto_server(client_p, chptr, CAP_TS6, NOCAPS, - ":%s SJOIN %ld %s +nt :@%s", - me.id, (long) chptr->channelts, - chptr->chname, source_p->id); - } + sendto_server(client_p, chptr, CAP_TS6, NOCAPS, + ":%s SJOIN %ld %s %s :@%s", + me.id, (long) chptr->channelts, + chptr->chname, modes, source_p->id); } else { @@ -362,93 +373,77 @@ m_join(struct Client *client_p, struct Client *source_p, int parc, const char *p sendto_one(source_p, form_str(RPL_TOPICWHOTIME), me.name, source_p->name, chptr->chname, - chptr->topic_info, chptr->topic_time); + chptr->topic_info, + (long long)chptr->topic_time); } channel_member_names(chptr, source_p, 1); - if(successful_join_count) - source_p->localClient->last_join_time = rb_current_time(); - hook_info.client = source_p; hook_info.chptr = chptr; hook_info.key = key; call_hook(h_channel_join, &hook_info); } - - return 0; } /* * ms_join - * - * inputs - - * output - none - * side effects - handles remote JOIN's sent by servers. In TSora - * remote clients are joined using SJOIN, hence a - * JOIN sent by a server on behalf of a client is an error. - * here, the initial code is in to take an extra parameter - * and use it for the TimeStamp on a new channel. + * parv[1] = channel TS + * parv[2] = channel + * parv[3] = "+", formerly channel modes but now unused + * alternatively, a single "0" parameter parts all channels */ -static int -ms_join(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) +static void +ms_join(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) { + static char modebuf[MODEBUFLEN]; + static char parabuf[MODEBUFLEN]; struct Channel *chptr; static struct Mode mode; time_t oldts; time_t newts; - int isnew; - int keep_our_modes = YES; - int keep_new_modes = YES; + bool isnew; + bool keep_our_modes = true; rb_dlink_node *ptr, *next_ptr; + char *mbuf; /* special case for join 0 */ if((parv[1][0] == '0') && (parv[1][1] == '\0') && parc == 2) { do_join_0(client_p, source_p); - return 0; + return; } if(parc < 4) - return 0; + return; if(!IsChannelName(parv[2]) || !check_channel_name(parv[2])) - return 0; + return; /* joins for local channels cant happen. */ if(parv[2][0] == '&') - return 0; + return; mbuf = modebuf; mode.key[0] = mode.forward[0] = '\0'; mode.mode = mode.limit = mode.join_num = mode.join_time = 0; if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL) - return 0; + return; newts = atol(parv[1]); oldts = chptr->channelts; -#ifdef IGNORE_BOGUS_TS - if(newts < 800000000) - { - sendto_realops_snomask(SNO_DEBUG, L_ALL, - "*** Bogus TS %ld on %s ignored from %s", - (long) newts, chptr->chname, client_p->name); - newts = (oldts == 0) ? oldts : 800000000; - } -#else /* making a channel TS0 */ if(!isnew && !newts && oldts) { - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(&me, ALL_MEMBERS, chptr, ":%s NOTICE %s :*** Notice -- TS for %s changed from %ld to 0", me.name, chptr->chname, chptr->chname, (long) oldts); sendto_realops_snomask(SNO_GENERAL, L_ALL, "Server %s changing TS on %s from %ld to 0", source_p->name, chptr->chname, (long) oldts); } -#endif if(isnew) chptr->channelts = newts; @@ -458,16 +453,14 @@ ms_join(struct Client *client_p, struct Client *source_p, int parc, const char * ; else if(newts < oldts) { - keep_our_modes = NO; + keep_our_modes = false; chptr->channelts = newts; } - else - keep_new_modes = NO; /* Lost the TS, other side wins, so remove modes on this side */ if(!keep_our_modes) { - set_final_mode(&mode, &chptr->mode); + mbuf = set_final_mode(mbuf, parabuf, &mode, &chptr->mode); chptr->mode = mode; remove_our_modes(chptr, source_p); RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head) @@ -476,7 +469,7 @@ ms_join(struct Client *client_p, struct Client *source_p, int parc, const char * } /* If setting -j, clear join throttle state -- jilles */ chptr->join_count = chptr->join_delta = 0; - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(&me, ALL_MEMBERS, chptr, ":%s NOTICE %s :*** Notice -- TS for %s changed from %ld to %ld", me.name, chptr->chname, chptr->chname, (long) oldts, (long) newts); @@ -484,11 +477,20 @@ ms_join(struct Client *client_p, struct Client *source_p, int parc, const char * * capitalization timestamped like modes are -- jilles */ strcpy(chptr->chname, parv[2]); if(*modebuf != '\0') - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(source_p->servptr, ALL_MEMBERS, chptr, ":%s MODE %s %s %s", source_p->servptr->name, chptr->chname, modebuf, parabuf); *modebuf = *parabuf = '\0'; + + /* since we're dropping our modes, we want to clear the mlock as well. --nenolod */ + set_channel_mlock(client_p, source_p, chptr, NULL, false); + + hook_data_channel hookdata; + hookdata.client = source_p; + hookdata.chptr = chptr; + + call_hook(h_channel_lowerts, &hookdata); } if(!IsMember(source_p, chptr)) @@ -501,20 +503,19 @@ ms_join(struct Client *client_p, struct Client *source_p, int parc, const char * chptr->join_delta = rb_current_time(); } chptr->join_count++; - sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", - source_p->name, source_p->username, - source_p->host, chptr->chname); + send_channel_join(chptr, source_p); } sendto_server(client_p, chptr, CAP_TS6, NOCAPS, ":%s JOIN %ld %s +", source_p->id, (long) chptr->channelts, chptr->chname); - return 0; } -static int -ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) +static void +ms_sjoin(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) { + static char modebuf[MODEBUFLEN]; + static char parabuf[MODEBUFLEN]; static char buf_uid[BUFSIZE]; static const char empty_modes[] = "0"; struct Channel *chptr; @@ -524,12 +525,11 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char static struct Mode mode, *oldmode; const char *modes; int args = 0; - int keep_our_modes = 1; - int keep_new_modes = 1; + bool keep_our_modes = true; + bool keep_new_modes = true; int fl; - int isnew; + bool isnew; int mlen_uid; - int len_nick; int len_uid; int len; int joins = 0; @@ -539,13 +539,19 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char int i, joinc = 0, timeslice = 0; static char empty[] = ""; rb_dlink_node *ptr, *next_ptr; + char *mbuf; + int pargs; + const char *para[MAXMODEPARAMS]; + + if(parc < 5) + return; if(!IsChannelName(parv[2]) || !check_channel_name(parv[2])) - return 0; + return; /* SJOIN's for local channels can't happen. */ if(*parv[2] == '&') - return 0; + return; modebuf[0] = parabuf[0] = mode.key[0] = mode.forward[0] = '\0'; pargs = mode.mode = mode.limit = mode.join_num = mode.join_time = 0; @@ -564,53 +570,11 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char { switch (*(s++)) { - case 'i': - mode.mode |= MODE_INVITEONLY; - break; - case 'n': - mode.mode |= MODE_NOPRIVMSGS; - break; - case 'p': - mode.mode |= MODE_PRIVATE; - break; - case 's': - mode.mode |= MODE_SECRET; - break; - case 'm': - mode.mode |= MODE_MODERATED; - break; - case 't': - mode.mode |= MODE_TOPICLIMIT; - break; - case 'r': - mode.mode |= MODE_REGONLY; - break; - case 'L': - mode.mode |= MODE_EXLIMIT; - break; - case 'P': - mode.mode |= MODE_PERMANENT; - break; - case 'c': - mode.mode |= MODE_NOCOLOR; - break; - case 'g': - mode.mode |= MODE_FREEINVITE; - break; - case 'z': - mode.mode |= MODE_OPMODERATE; - break; - case 'F': - mode.mode |= MODE_FREETARGET; - break; - case 'Q': - mode.mode |= MODE_DISFORWARD; - break; case 'f': rb_strlcpy(mode.forward, parv[4 + args], sizeof(mode.forward)); args++; if(parc < 5 + args) - return 0; + return; break; case 'j': sscanf(parv[4 + args], "%d:%d", &joinc, ×lice); @@ -618,20 +582,25 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char mode.join_num = joinc; mode.join_time = timeslice; if(parc < 5 + args) - return 0; + return; break; case 'k': rb_strlcpy(mode.key, parv[4 + args], sizeof(mode.key)); args++; if(parc < 5 + args) - return 0; + return; break; case 'l': mode.limit = atoi(parv[4 + args]); args++; if(parc < 5 + args) - return 0; + return; break; + default: + if(chmode_flags[(int) *s] != 0) + { + mode.mode |= chmode_flags[(int) *s]; + } } } @@ -647,25 +616,15 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char s = ""; if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL) - return 0; /* channel name too long? */ + return; /* channel name too long? */ oldts = chptr->channelts; oldmode = &chptr->mode; -#ifdef IGNORE_BOGUS_TS - if(newts < 800000000) - { - sendto_realops_snomask(SNO_DEBUG, L_ALL, - "*** Bogus TS %ld on %s ignored from %s", - (long) newts, chptr->chname, client_p->name); - - newts = (oldts == 0) ? oldts : 800000000; - } -#else if(!isnew && !newts && oldts) { - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(&me, ALL_MEMBERS, chptr, ":%s NOTICE %s :*** Notice -- TS for %s " "changed from %ld to 0", me.name, chptr->chname, chptr->chname, (long) oldts); @@ -673,11 +632,10 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char "Server %s changing TS on %s from %ld to 0", source_p->name, chptr->chname, (long) oldts); } -#endif if(isnew) chptr->channelts = newts; - + else if(newts == 0 || oldts == 0) chptr->channelts = 0; else if(newts == oldts) @@ -686,21 +644,20 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char { /* If configured, kick people trying to join +i/+k * channels by recreating them on split servers. - * Don't kick if the source has sent EOB (services - * deopping everyone by TS-1 SJOIN). + * If the source has sent EOB, assume this is some + * sort of hack by services. If cmode +i is set, + * services can send kicks if needed; if the key + * differs, services cannot kick in a race-free + * manner so do so here. * -- jilles */ if (ConfigChannel.kick_on_split_riding && - !HasSentEob(source_p) && - ((mode.mode & MODE_INVITEONLY) || + ((!HasSentEob(source_p) && + mode.mode & MODE_INVITEONLY) || (mode.key[0] != 0 && irccmp(mode.key, oldmode->key) != 0))) { struct membership *msptr; struct Client *who; int l = rb_dlink_list_length(&chptr->members); - int b = rb_dlink_list_length(&chptr->banlist) + - rb_dlink_list_length(&chptr->exceptlist) + - rb_dlink_list_length(&chptr->invexlist) + - rb_dlink_list_length(&chptr->quietlist); RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->locmembers.head) { @@ -721,24 +678,16 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char { /* Channel was emptied, create a new one */ if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL) - return 0; /* oops! */ - - /* If the source does not do TS6, - * nontimestamped bans have been sent to it, - * but we have just lost those here. Let's - * warn the channel about this. Because - * of the kicks, any users on the channel - * will be at client_p. -- jilles */ - if (!has_id(source_p) && b > 0) - sendto_one(client_p, ":%s NOTICE %s :*** Notice -- possible ban desync on %s, please remove any bans just added by servers", get_id(&me, client_p), parv[2], parv[2]); + return; /* oops! */ + oldmode = &chptr->mode; } } - keep_our_modes = NO; + keep_our_modes = false; chptr->channelts = newts; } else - keep_new_modes = NO; + keep_new_modes = false; if(!keep_new_modes) mode = *oldmode; @@ -748,7 +697,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char if(oldmode->limit > mode.limit) mode.limit = oldmode->limit; if(strcmp(mode.key, oldmode->key) < 0) - strcpy(mode.key, oldmode->key); + rb_strlcpy(mode.key, oldmode->key, sizeof(mode.key)); if(oldmode->join_num > mode.join_num || (oldmode->join_num == mode.join_num && oldmode->join_time > mode.join_time)) @@ -757,7 +706,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char mode.join_time = oldmode->join_time; } if(irccmp(mode.forward, oldmode->forward) < 0) - strcpy(mode.forward, oldmode->forward); + rb_strlcpy(mode.forward, oldmode->forward, sizeof(mode.forward)); } else { @@ -766,7 +715,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char chptr->join_count = chptr->join_delta = 0; } - set_final_mode(&mode, oldmode); + mbuf = set_final_mode(mbuf, parabuf, &mode, oldmode); chptr->mode = mode; /* Lost the TS, other side wins, so remove modes on this side */ @@ -777,17 +726,34 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char { del_invite(chptr, ptr->data); } - sendto_channel_local(ALL_MEMBERS, chptr, + + if(rb_dlink_list_length(&chptr->banlist) > 0) + remove_ban_list(chptr, fakesource_p, &chptr->banlist, 'b', ALL_MEMBERS); + if(rb_dlink_list_length(&chptr->exceptlist) > 0) + remove_ban_list(chptr, fakesource_p, &chptr->exceptlist, + 'e', ONLY_CHANOPS); + if(rb_dlink_list_length(&chptr->invexlist) > 0) + remove_ban_list(chptr, fakesource_p, &chptr->invexlist, + 'I', ONLY_CHANOPS); + if(rb_dlink_list_length(&chptr->quietlist) > 0) + remove_ban_list(chptr, fakesource_p, &chptr->quietlist, + 'q', ALL_MEMBERS); + chptr->bants++; + + sendto_channel_local(&me, ALL_MEMBERS, chptr, ":%s NOTICE %s :*** Notice -- TS for %s changed from %ld to %ld", me.name, chptr->chname, chptr->chname, (long) oldts, (long) newts); /* Update capitalization in channel name, this makes the * capitalization timestamped like modes are -- jilles */ strcpy(chptr->chname, parv[2]); + + /* since we're dropping our modes, we want to clear the mlock as well. --nenolod */ + set_channel_mlock(client_p, source_p, chptr, NULL, false); } if(*modebuf != '\0') - sendto_channel_local(ALL_MEMBERS, chptr, ":%s MODE %s %s %s", + sendto_channel_local(fakesource_p, ALL_MEMBERS, chptr, ":%s MODE %s %s %s", fakesource_p->name, chptr->chname, modebuf, parabuf); *modebuf = *parabuf = '\0'; @@ -797,17 +763,14 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char else modes = empty_modes; - /* working on the presumption eventually itll be more efficient to - * build a TS6 buffer without checking its needed.. - */ - mlen_uid = rb_sprintf(buf_uid, ":%s SJOIN %ld %s %s :", + mlen_uid = sprintf(buf_uid, ":%s SJOIN %ld %s %s :", use_id(source_p), (long) chptr->channelts, parv[2], modes); ptr_uid = buf_uid + mlen_uid; mbuf = modebuf; para[0] = para[1] = para[2] = para[3] = empty; pargs = 0; - len_nick = len_uid = 0; + len_uid = 0; /* if theres a space, theres going to be more than one nick, change the * first space to \0, so s is just the first nick, and point p to the @@ -859,19 +822,17 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char if(fl & CHFL_CHANOP) { *ptr_uid++ = '@'; - len_nick++; len_uid++; } if(fl & CHFL_VOICE) { *ptr_uid++ = '+'; - len_nick++; len_uid++; } } /* copy the nick to the two buffers */ - len = rb_sprintf(ptr_uid, "%s ", use_id(target_p)); + len = sprintf(ptr_uid, "%s ", use_id(target_p)); ptr_uid += len; len_uid += len; @@ -881,9 +842,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char if(!IsMember(target_p, chptr)) { add_user_to_channel(chptr, target_p, fl); - sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", - target_p->name, - target_p->username, target_p->host, parv[2]); + send_channel_join(chptr, target_p); joins++; } @@ -901,7 +860,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char if(pargs >= MAXMODEPARAMS) { *mbuf = '\0'; - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(fakesource_p, ALL_MEMBERS, chptr, ":%s MODE %s %s %s %s %s %s", fakesource_p->name, chptr->chname, modebuf, @@ -925,7 +884,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char if(pargs >= MAXMODEPARAMS) { *mbuf = '\0'; - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(fakesource_p, ALL_MEMBERS, chptr, ":%s MODE %s %s %s %s %s %s", fakesource_p->name, chptr->chname, @@ -960,7 +919,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char *mbuf = '\0'; if(pargs) { - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(fakesource_p, ALL_MEMBERS, chptr, ":%s MODE %s %s %s %s %s %s", fakesource_p->name, chptr->chname, modebuf, para[0], CheckEmpty(para[1]), @@ -971,7 +930,7 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char { destroy_channel(chptr); - return 0; + return; } /* Keep the colon if we're sending an SJOIN without nicks -- jilles */ @@ -981,32 +940,6 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char } sendto_server(client_p->from, NULL, CAP_TS6, NOCAPS, "%s", buf_uid); - - /* if the source does TS6 we have to remove our bans. Its now safe - * to issue -b's to the non-ts6 servers, as the sjoin we've just - * sent will kill any ops they have. - */ - if(!keep_our_modes && source_p->id[0] != '\0') - { - if(rb_dlink_list_length(&chptr->banlist) > 0) - remove_ban_list(chptr, fakesource_p, &chptr->banlist, 'b', NOCAPS, ALL_MEMBERS); - - if(rb_dlink_list_length(&chptr->exceptlist) > 0) - remove_ban_list(chptr, fakesource_p, &chptr->exceptlist, - 'e', CAP_EX, ONLY_CHANOPS); - - if(rb_dlink_list_length(&chptr->invexlist) > 0) - remove_ban_list(chptr, fakesource_p, &chptr->invexlist, - 'I', CAP_IE, ONLY_CHANOPS); - - if(rb_dlink_list_length(&chptr->quietlist) > 0) - remove_ban_list(chptr, fakesource_p, &chptr->quietlist, - 'q', NOCAPS, ALL_MEMBERS); - - chptr->bants++; - } - - return 0; } /* @@ -1016,8 +949,6 @@ ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char * output - NONE * side effects - Use has decided to join 0. This is legacy * from the days when channels were numbers not names. *sigh* - * There is a bunch of evilness necessary here due to - * anti spambot code. */ static void do_join_0(struct Client *client_p, struct Client *source_p) @@ -1032,50 +963,97 @@ do_join_0(struct Client *client_p, struct Client *source_p) sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s JOIN 0", use_id(source_p)); - if(source_p->user->channel.head && MyConnect(source_p) && - !IsOper(source_p) && !IsExemptSpambot(source_p)) - check_spambot_warning(source_p, NULL); - while((ptr = source_p->user->channel.head)) { + if(MyConnect(source_p) && + !IsOperGeneral(source_p) && !IsExemptSpambot(source_p)) + check_spambot_warning(source_p, NULL); + msptr = ptr->data; chptr = msptr->chptr; - sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s", + sendto_channel_local(source_p, ALL_MEMBERS, chptr, ":%s!%s@%s PART %s", source_p->name, source_p->username, source_p->host, chptr->chname); remove_user_from_channel(msptr); } } -static int +static bool check_channel_name_loc(struct Client *source_p, const char *name) { + const char *p; + s_assert(name != NULL); if(EmptyString(name)) - return 0; + return false; - if(ConfigFileEntry.disable_fake_channels && !IsOper(source_p)) + if(ConfigFileEntry.disable_fake_channels && !IsOperGeneral(source_p)) { - for(; *name; ++name) + for(p = name; *p; ++p) { - if(!IsChanChar(*name) || IsFakeChanChar(*name)) - return 0; + if(!IsChanChar(*p) || IsFakeChanChar(*p)) + return false; } } else { - for(; *name; ++name) + for(p = name; *p; ++p) { - if(!IsChanChar(*name)) - return 0; + if(!IsChanChar(*p)) + return false; } } - return 1; + if(ConfigChannel.only_ascii_channels) + { + for(p = name; *p; ++p) + if(*p < 33 || *p > 126) + return false; + } + + return true; } +/* send_join_error() + * + * input - client to send to, reason, channel name + * output - none + * side effects - error message sent to client + */ static void -set_final_mode(struct Mode *mode, struct Mode *oldmode) +send_join_error(struct Client *source_p, int numeric, const char *name) +{ + /* This stuff is necessary because the form_str macro only + * accepts constants. + */ + switch (numeric) + { +#define NORMAL_NUMERIC(i) \ + case i: \ + sendto_one(source_p, form_str(i), \ + me.name, source_p->name, name); \ + break + + NORMAL_NUMERIC(ERR_BANNEDFROMCHAN); + NORMAL_NUMERIC(ERR_INVITEONLYCHAN); + NORMAL_NUMERIC(ERR_BADCHANNELKEY); + NORMAL_NUMERIC(ERR_CHANNELISFULL); + NORMAL_NUMERIC(ERR_NEEDREGGEDNICK); + NORMAL_NUMERIC(ERR_THROTTLE); + + case ERR_USERONCHANNEL: + sendto_one_numeric(source_p, ERR_USERONCHANNEL, + form_str(ERR_USERONCHANNEL), source_p->name, name); + break; + default: + sendto_one_numeric(source_p, numeric, + "%s :Cannot join channel", name); + break; + } +} + +static char * +set_final_mode(char *mbuf, char *parabuf, struct Mode *mode, struct Mode *oldmode) { int dir = MODE_QUERY; char *pbuf = parabuf; @@ -1083,30 +1061,30 @@ set_final_mode(struct Mode *mode, struct Mode *oldmode) int i; /* ok, first get a list of modes we need to add */ - for (i = 0; chmode_flags[i].letter; i++) + for (i = 0; i < 256; i++) { - if((mode->mode & chmode_flags[i].mode) && !(oldmode->mode & chmode_flags[i].mode)) + if((mode->mode & chmode_flags[i]) && !(oldmode->mode & chmode_flags[i])) { if(dir != MODE_ADD) { *mbuf++ = '+'; dir = MODE_ADD; } - *mbuf++ = chmode_flags[i].letter; + *mbuf++ = i; } } /* now the ones we need to remove. */ - for (i = 0; chmode_flags[i].letter; i++) + for (i = 0; i < 256; i++) { - if((oldmode->mode & chmode_flags[i].mode) && !(mode->mode & chmode_flags[i].mode)) + if((oldmode->mode & chmode_flags[i]) && !(mode->mode & chmode_flags[i])) { if(dir != MODE_DEL) { *mbuf++ = '-'; dir = MODE_DEL; } - *mbuf++ = chmode_flags[i].letter; + *mbuf++ = i; } } @@ -1127,7 +1105,7 @@ set_final_mode(struct Mode *mode, struct Mode *oldmode) dir = MODE_DEL; } *mbuf++ = 'k'; - len = rb_sprintf(pbuf, "%s ", oldmode->key); + len = sprintf(pbuf, "%s ", oldmode->key); pbuf += len; } if(oldmode->join_num && !mode->join_num) @@ -1156,7 +1134,7 @@ set_final_mode(struct Mode *mode, struct Mode *oldmode) dir = MODE_ADD; } *mbuf++ = 'l'; - len = rb_sprintf(pbuf, "%d ", mode->limit); + len = sprintf(pbuf, "%d ", mode->limit); pbuf += len; } if(mode->key[0] && strcmp(oldmode->key, mode->key)) @@ -1167,7 +1145,7 @@ set_final_mode(struct Mode *mode, struct Mode *oldmode) dir = MODE_ADD; } *mbuf++ = 'k'; - len = rb_sprintf(pbuf, "%s ", mode->key); + len = sprintf(pbuf, "%s ", mode->key); pbuf += len; } if(mode->join_num && (oldmode->join_num != mode->join_num || oldmode->join_time != mode->join_time)) @@ -1178,10 +1156,11 @@ set_final_mode(struct Mode *mode, struct Mode *oldmode) dir = MODE_ADD; } *mbuf++ = 'j'; - len = rb_sprintf(pbuf, "%d:%d ", mode->join_num, mode->join_time); + len = sprintf(pbuf, "%d:%d ", mode->join_num, mode->join_time); pbuf += len; } - if(mode->forward[0] && strcmp(oldmode->forward, mode->forward) && ConfigChannel.use_forward) + if(mode->forward[0] && strcmp(oldmode->forward, mode->forward) && + ConfigChannel.use_forward) { if(dir != MODE_ADD) { @@ -1189,18 +1168,20 @@ set_final_mode(struct Mode *mode, struct Mode *oldmode) dir = MODE_ADD; } *mbuf++ = 'f'; - len = rb_sprintf(pbuf, "%s ", mode->forward); + len = sprintf(pbuf, "%s ", mode->forward); pbuf += len; } *mbuf = '\0'; + + return mbuf; } /* * remove_our_modes * * inputs - - * output - - * side effects - + * output - + * side effects - */ static void remove_our_modes(struct Channel *chptr, struct Client *source_p) @@ -1211,8 +1192,8 @@ remove_our_modes(struct Channel *chptr, struct Client *source_p) char *lpara[MAXMODEPARAMS]; int count = 0; int i; + char *mbuf = lmodebuf; - mbuf = lmodebuf; *mbuf++ = '-'; for(i = 0; i < MAXMODEPARAMS; i++) @@ -1234,9 +1215,9 @@ remove_our_modes(struct Channel *chptr, struct Client *source_p) if(count >= MAXMODEPARAMS) { *mbuf = '\0'; - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(source_p, ALL_MEMBERS, chptr, ":%s MODE %s %s %s %s %s %s", - me.name, chptr->chname, + source_p->name, chptr->chname, lmodebuf, lpara[0], lpara[1], lpara[2], lpara[3]); @@ -1266,9 +1247,9 @@ remove_our_modes(struct Channel *chptr, struct Client *source_p) if(count >= MAXMODEPARAMS) { *mbuf = '\0'; - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(source_p, ALL_MEMBERS, chptr, ":%s MODE %s %s %s %s %s %s", - me.name, chptr->chname, lmodebuf, + source_p->name, chptr->chname, lmodebuf, lpara[0], lpara[1], lpara[2], lpara[3]); mbuf = lmodebuf; *mbuf++ = '-'; @@ -1282,9 +1263,9 @@ remove_our_modes(struct Channel *chptr, struct Client *source_p) if(count != 0) { *mbuf = '\0'; - sendto_channel_local(ALL_MEMBERS, chptr, + sendto_channel_local(source_p, ALL_MEMBERS, chptr, ":%s MODE %s %s %s %s %s %s", - me.name, chptr->chname, lmodebuf, + source_p->name, chptr->chname, lmodebuf, EmptyString(lpara[0]) ? "" : lpara[0], EmptyString(lpara[1]) ? "" : lpara[1], EmptyString(lpara[2]) ? "" : lpara[2], @@ -1298,11 +1279,10 @@ remove_our_modes(struct Channel *chptr, struct Client *source_p) * inputs - channel, source, list to remove, char of mode, caps needed * outputs - * side effects - given list is removed, with modes issued to local clients - * and non-TS6 servers. */ static void remove_ban_list(struct Channel *chptr, struct Client *source_p, - rb_dlink_list * list, char c, int cap, int mems) + rb_dlink_list * list, char c, int mems) { static char lmodebuf[BUFSIZE]; static char lparabuf[BUFSIZE]; @@ -1312,10 +1292,11 @@ remove_ban_list(struct Channel *chptr, struct Client *source_p, char *pbuf; int count = 0; int cur_len, mlen, plen; + char *mbuf; pbuf = lparabuf; - cur_len = mlen = rb_sprintf(lmodebuf, ":%s MODE %s -", source_p->name, chptr->chname); + cur_len = mlen = sprintf(lmodebuf, ":%s MODE %s -", source_p->name, chptr->chname); mbuf = lmodebuf + mlen; RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) @@ -1323,7 +1304,8 @@ remove_ban_list(struct Channel *chptr, struct Client *source_p, banptr = ptr->data; /* trailing space, and the mode letter itself */ - plen = strlen(banptr->banstr) + 2; + plen = strlen(banptr->banstr) + + (banptr->forward ? strlen(banptr->forward) + 1 : 0) + 2; if(count >= MAXMODEPARAMS || (cur_len + plen) > BUFSIZE - 4) { @@ -1331,12 +1313,7 @@ remove_ban_list(struct Channel *chptr, struct Client *source_p, *mbuf = '\0'; *(pbuf - 1) = '\0'; - sendto_channel_local(mems, chptr, "%s %s", lmodebuf, lparabuf); - /* Tricky tricky. If we changed source_p to &me - * in ms_sjoin(), this still won't send stuff - * where it should not be sent, because the - * real source_p does TS6 -- jilles */ - sendto_server(source_p, chptr, cap, CAP_TS6, "%s %s", lmodebuf, lparabuf); + sendto_channel_local(source_p, mems, chptr, "%s %s", lmodebuf, lparabuf); cur_len = mlen; mbuf = lmodebuf + mlen; @@ -1346,7 +1323,10 @@ remove_ban_list(struct Channel *chptr, struct Client *source_p, *mbuf++ = c; cur_len += plen; - pbuf += rb_sprintf(pbuf, "%s ", banptr->banstr); + if (banptr->forward) + pbuf += sprintf(pbuf, "%s$%s ", banptr->banstr, banptr->forward); + else + pbuf += sprintf(pbuf, "%s ", banptr->banstr); count++; free_ban(banptr); @@ -1354,8 +1334,7 @@ remove_ban_list(struct Channel *chptr, struct Client *source_p, *mbuf = '\0'; *(pbuf - 1) = '\0'; - sendto_channel_local(mems, chptr, "%s %s", lmodebuf, lparabuf); - sendto_server(source_p, chptr, cap, CAP_TS6, "%s %s", lmodebuf, lparabuf); + sendto_channel_local(source_p, mems, chptr, "%s %s", lmodebuf, lparabuf); list->head = list->tail = NULL; list->length = 0;