* note: it is guaranteed that parv[0]..parv[parc-1] are all
* non-NULL pointers.
*/
-#if 0
-/*
- * No need to include handlers.h here the signatures must match
- * and we don't need to force a rebuild of all the handlers everytime
- * we add a new one to the list. --Bleep
- */
-#include "handlers.h"
-#endif /* 0 */
+#include "config.h"
+
#include "channel.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "ircd_alloc.h"
+#include "ircd_features.h"
+#include "ircd_log.h"
#include "ircd_reply.h"
#include "ircd_string.h"
#include "list.h"
+#include "match.h"
#include "msg.h"
#include "numeric.h"
#include "numnicks.h"
#include "s_misc.h"
#include "send.h"
#include "struct.h"
+#include "ircd_snprintf.h"
-#include <assert.h>
+/* #include <assert.h> -- Now using assert in ircd_log.h */
#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
+
+static int
+netride_modes(int parc, char **parv, const char *curr_key)
+{
+ char *modes = parv[0];
+ int result = 0;
+
+ assert(modes && modes[0] == '+');
+ while (*modes) {
+ switch (*modes++) {
+ case '-':
+ return -1;
+ case 'i':
+ result |= MODE_INVITEONLY;
+ break;
+ case 'k':
+ if (strcmp(curr_key, *++parv))
+ result |= MODE_KEY;
+ break;
+ case 'l':
+ ++parv;
+ break;
+ case 'r':
+ result |= MODE_REGONLY;
+ break;
+ }
+ }
+ return result;
+}
/*
* ms_burst - server message handler
* parv[n] = %<ban> <ban> <ban> ...
* If parv[n] starts with another character:
* parv[n] = <nick>[:<mode>],<nick>[:<mode>],...
- * where <mode> is the channel mode (ov) of nick and all following nicks.
+ * where <mode> defines the mode and op-level
+ * for nick and all following nicks until the
+ * next <mode> field.
+ * Digits in the <mode> field have of two meanings:
+ * 1) if it is the first field in this BURST message
+ * that contains digits, and/or when a 'v' is
+ * present in the <mode>:
+ * The absolute value of the op-level.
+ * 2) if there are only digits in this field and
+ * it is not the first field with digits:
+ * An op-level increment relative to the previous
+ * op-level.
+ * First all modeless nicks must be emmitted,
+ * then all combinations of modes without ops
+ * (currently that is only 'v') followed by the same
+ * series but then with ops (currently 'o','ov').
*
* Example:
- * "S BURST #channel 87654321 +ntkl key 123 AAA,AAB:o,BAA,BAB:ov :%ban1 ban2"
+ * "A8 B #test 87654321 +ntkAl key secret 123 A8AAG,A8AAC:v,A8AAA:0,A8AAF:2,A8AAD,A8AAB:v1,A8AAE:1 :%ban1 ban2"
+ *
+ * <mode> list example:
+ *
+ * "xxx,sss:v,ttt,aaa:123,bbb,ccc:2,ddd,kkk:v2,lll:2,mmm"
+ *
+ * means
+ *
+ * xxx // first modeless nicks
+ * sss +v // then opless nicks
+ * ttt +v // no ":<mode>": everything stays the same
+ * aaa -123 // first field with digit: absolute value
+ * bbb -123
+ * ccc -125 // only digits, not first field: increment
+ * ddd -125
+ * kkk -2 +v // field with a 'v': absolute value
+ * lll -4 +v // only digits: increment
+ * mmm -4 +v
*
* Anti net.ride code.
*
- * When the channel already exist, and its TS is larger then
+ * When the channel already exist, and its TS is larger than
* the TS in the BURST message, then we cancel all existing modes.
* If its is smaller then the received BURST message is ignored.
* If it's equal, then the received modes are just added.
+ *
+ * BURST is also accepted outside a netburst now because it
+ * is sent upstream as reaction to a DESTRUCT message. For
+ * these BURST messages it is possible that the listed channel
+ * members are already joined.
*/
-int ms_burst(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+int ms_burst(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
{
- struct Channel* chptr;
- time_t timestamp;
- int netride = 0;
- int wipeout = 0;
- int n;
- int send_it = 0;
- int add_banid_not_called = 1;
- struct Mode* current_mode;
- size_t sblen;
- size_t mblen = 0;
- int mblen2;
- int pblen2;
- int cnt;
- int prev_mode;
- char prev_key[KEYLEN + 1];
- struct Membership* member;
- struct SLink* lp;
- char modebuf[MODEBUFLEN];
- char parabuf[MODEBUFLEN];
- char bmodebuf[MODEBUFLEN];
- char bparambuf[MODEBUFLEN];
+ struct ModeBuf modebuf, *mbuf = 0;
+ struct Channel *chptr;
+ time_t timestamp;
+ struct Membership *member, *nmember;
+ struct Ban *lp, **lp_p;
+ unsigned int parse_flags = (MODE_PARSE_FORCE | MODE_PARSE_BURST);
+ int param, nickpos = 0, banpos = 0;
+ char modestr[BUFSIZE], nickstr[BUFSIZE], banstr[BUFSIZE];
+
+ if (parc < 3)
+ return protocol_violation(sptr,"Too few parameters for BURST");
- /* BURST is only for servers and has at least 4 parameters */
- if (!IsServer(cptr) || parc < 4)
- return 0;
+ if (!(chptr = get_channel(sptr, parv[1], CGT_CREATE)))
+ return 0; /* can't create the channel? */
- if (!IsBurst(sptr))
+ timestamp = atoi(parv[2]);
+
+ if (chptr->creationtime) /* 0 for new (empty) channels,
+ i.e. when this server just restarted. */
{
- int i;
- char *p;
- if (find_conf_byhost(cptr->confs, sptr->name, CONF_UWORLD))
+ if (parc == 3) /* Zannel BURST? */
{
- p =
- sprintf_irc(sendbuf,
- ":%s NOTICE * :*** Notice -- HACK(4): %s BURST %s %s", me.name,
- sptr->name, parv[1], parv[2]);
- for (i = 3; i < parc - 1; ++i)
- p = sprintf_irc(p, " %s", parv[i]);
- sprintf_irc(p, " :%s", parv[parc - 1]);
- sendbufto_op_mask(SNO_HACK4);
+ /* An empty channel without +A set, will cause a BURST message
+ with exactly 3 parameters (because all modes have been reset).
+ If the timestamp on such channels is only a few seconds older
+ from our own, then we ignore this burst: we do not deop our
+ own side.
+ Likewise, we expect the other (empty) side to copy our timestamp
+ from our own BURST message, even though it is slightly larger.
+
+ The reason for this is to allow people to join an empty
+ non-A channel (a zannel) during a net.split, and not be
+ deopped when the net reconnects (with another zannel). When
+ someone joins a split zannel, their side increments the TS by one.
+ If they cycle a few times then we still don't have a reason to
+ deop them. Theoretically I see no reason not to accept ANY timestamp,
+ but to be sure, we only accept timestamps that are just a few
+ seconds off (one second for each time they cycled the channel). */
+
+ /* Don't even deop users who cycled four times during the net.break. */
+ if (timestamp < chptr->creationtime &&
+ chptr->creationtime <= timestamp + 4 &&
+ chptr->users != 0) /* Only do this when WE have users, so that
+ if we do this the BURST that we sent has
+ parc > 3 and the other side will use the
+ test below: */
+ timestamp = chptr->creationtime; /* Do not deop our side. */
}
- else
+ else if (chptr->creationtime < timestamp &&
+ timestamp <= chptr->creationtime + 4 &&
+ chptr->users == 0)
{
-#if 1 /* FIXME: This should be removed after all HUBs upgraded to ircu2.10.05 */
- SetBurst(sptr);
- if (MyConnect(sptr))
-#endif
- return exit_client_msg(cptr, cptr, &me,
- "HACK: BURST message outside net.burst from %s", sptr->name);
+ /* If one side of the net.junction does the above
+ timestamp = chptr->creationtime, then the other
+ side must do this: */
+ chptr->creationtime = timestamp; /* Use the same TS on both sides. */
}
+ /* In more complex cases, we might still end up with a
+ creationtime desync of a few seconds, but that should
+ be synced automatically rather quickly (every JOIN
+ caries a timestamp and will sync it; modes by users do
+ not carry timestamps and are accepted regardless).
+ Only when nobody joins the channel on the side with
+ the oldest timestamp before a new net.break occurs
+ precisely inbetween the desync, an unexpected bounce
+ might happen on reconnect. */
}
- /* Find the channel, or create it - note that the creation time
- * will be 0 if it has to be created */
- chptr = get_channel(sptr, parv[1], CGT_CREATE);
- current_mode = &chptr->mode;
- prev_mode = chptr->mode.mode;
- if (*chptr->mode.key)
- {
- prev_mode |= MODE_KEY;
- strcpy(prev_key, chptr->mode.key);
- }
- if (chptr->mode.limit)
- prev_mode |= MODE_LIMIT;
-
- timestamp = atoi(parv[2]);
-
- /* Copy the new TS when the received creationtime appears to be older */
- if (!chptr->creationtime || chptr->creationtime > timestamp)
- {
- /* Set the new timestamp */
- chptr->creationtime = timestamp;
- send_it = 1; /* Make sure we pass on the different timestamp ! */
- /* Mark all bans as needed to be wiped out */
- for (lp = chptr->banlist; lp; lp = lp->next)
- lp->flags |= CHFL_BURST_BAN_WIPEOUT;
+ if (!chptr->creationtime || chptr->creationtime > timestamp) {
/*
- * Only the first BURST for this channel can have creationtime > timestamp,
- * so at this moment ALL members are on OUR side, and thus all net.riders:
+ * Kick local members if channel is +i or +k and our TS was larger
+ * than the burst TS (anti net.ride). The modes hack is here because
+ * we have to do this before mode_parse, as chptr may go away.
*/
- wipeout = 1;
- }
- for (member = chptr->members; member; member = member->next_member)
- member->status &= ~CHFL_BURST_JOINED; /* Set later for nicks in the BURST msg */
- /* If `wipeout' is set then these will be deopped later. */
-
- /* If the entering creationtime is younger, ignore the modes */
- if (chptr->creationtime < timestamp)
- netride = 1; /* Only pass on the nicks (so they JOIN) */
-
- /* Prepare buffers to pass the message */
- *bparambuf = *bmodebuf = *parabuf = '\0';
- pblen2 = 0;
- *modebuf = '+';
- mblen2 = 1;
- cnt = 0;
- sblen = sprintf_irc(sendbuf, "%s B %s " TIME_T_FMT,
- NumServ(sptr), chptr->chname, chptr->creationtime) - sendbuf;
-
- /* Run over all remaining parameters */
- for (n = 3; n < parc; n++)
- switch (*parv[n]) /* What type is it ? mode, nicks or bans ? */
+ for (param = 3; param < parc; param++)
{
- case '+': /* modes */
- {
- char *p = parv[n];
- while (*(++p)) /* Run over all mode characters */
- {
- switch (*p) /* which mode ? */
- {
- /*
- * The following cases all do the following:
- * - In case wipeout needed, reset 'prev_mode' to indicate this
- * mode should not be cancelled.
- * - If wipeout or (not netride and the new mode is a change),
- * add it to bmodebuf and bparabuf for propagation.
- * - Else ignore it.
- * - Add it to modebuf and parabuf for propagation to the
- * clients when not netride and the new mode is a change.
- * Special cases:
- * - If a +s is received, cancel a +p and sent a -p to the
- * clients too (if +p was set).
- * - If a +p is received and +s is set, ignore the +p.
- */
- case 'i':
- {
- int tmp;
- prev_mode &= ~MODE_INVITEONLY;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_INVITEONLY)) || wipeout)
- {
- bmodebuf[mblen++] = 'i';
- current_mode->mode |= MODE_INVITEONLY;
- }
- if (!tmp)
- modebuf[mblen2++] = 'i';
- break;
- }
- case 'k':
- {
- int tmp;
- char *param = parv[++n];
- prev_mode &= ~MODE_KEY;
- if (!(tmp = netride || (*current_mode->key &&
- (!strcmp(current_mode->key, param) ||
- (!wipeout && strcmp(current_mode->key, param) < 0)))) ||
- wipeout)
- {
- bmodebuf[mblen++] = 'k';
- strcat(bparambuf, " ");
- strcat(bparambuf, param);
- ircd_strncpy(current_mode->key, param, KEYLEN);
- }
- if (!tmp && !wipeout)
- {
- modebuf[mblen2++] = 'k';
- parabuf[pblen2++] = ' ';
- strcpy(parabuf + pblen2, param);
- pblen2 += strlen(param);
- cnt++;
- }
- break;
- }
- case 'l':
- {
- int tmp;
- unsigned int param = atoi(parv[++n]);
- prev_mode &= ~MODE_LIMIT;
- if (!(tmp = netride || (current_mode->limit &&
- (current_mode->limit == param ||
- (!wipeout && current_mode->limit < param)))) || wipeout)
- {
- bmodebuf[mblen++] = 'l';
- sprintf_irc(bparambuf + strlen(bparambuf), " %d", param);
- current_mode->limit = param;
- }
- if (!tmp)
- {
- modebuf[mblen2++] = 'l';
- pblen2 = sprintf_irc(parabuf + pblen2, " %d", param) - parabuf;
- cnt++;
- }
- break;
- }
- case 'm':
- {
- int tmp;
- prev_mode &= ~MODE_MODERATED;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_MODERATED)) || wipeout)
- {
- bmodebuf[mblen++] = 'm';
- current_mode->mode |= MODE_MODERATED;
- }
- if (!tmp)
- modebuf[mblen2++] = 'm';
- break;
- }
- case 'n':
- {
- int tmp;
- prev_mode &= ~MODE_NOPRIVMSGS;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_NOPRIVMSGS)) || wipeout)
- {
- bmodebuf[mblen++] = 'n';
- current_mode->mode |= MODE_NOPRIVMSGS;
- }
- if (!tmp)
- modebuf[mblen2++] = 'n';
- break;
- }
- case 'p':
- {
- int tmp;
-
- /* Special case: */
- if (!netride && !wipeout && (current_mode->mode & MODE_SECRET))
- break;
-
- prev_mode &= ~MODE_PRIVATE;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_PRIVATE)) || wipeout)
- {
- bmodebuf[mblen++] = 'p';
- current_mode->mode |= MODE_PRIVATE;
- }
- if (!tmp)
- modebuf[mblen2++] = 'p';
- break;
- }
- case 's':
- {
- int tmp;
- prev_mode &= ~MODE_SECRET;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_SECRET)) || wipeout)
- {
- bmodebuf[mblen++] = 's';
- current_mode->mode |= MODE_SECRET;
- }
- if (!tmp)
- modebuf[mblen2++] = 's';
-
- /* Special case: */
- if (!netride && !wipeout && (current_mode->mode & MODE_PRIVATE))
- {
- int i;
- for (i = mblen2 - 1; i >= 0; --i)
- modebuf[i + 2] = modebuf[i];
- modebuf[0] = '-';
- modebuf[1] = 'p';
- mblen2 += 2;
- current_mode->mode &= ~MODE_PRIVATE;
- }
-
- break;
- }
- case 't':
- {
- int tmp;
- prev_mode &= ~MODE_TOPICLIMIT;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_TOPICLIMIT)) || wipeout)
- {
- bmodebuf[mblen++] = 't';
- current_mode->mode |= MODE_TOPICLIMIT;
- }
- if (!tmp)
- modebuf[mblen2++] = 't';
- break;
- }
- }
- } /* <-- while over all modes */
-
- bmodebuf[mblen] = '\0';
- sendbuf[sblen] = '\0';
- if (mblen) /* Anything to send at all ? */
- {
- send_it = 1;
- strcpy(sendbuf + sblen, " +");
- sblen += 2;
- strcpy(sendbuf + sblen, bmodebuf);
- sblen += mblen;
- strcpy(sendbuf + sblen, bparambuf);
- sblen += strlen(bparambuf);
- }
- break; /* Done mode part */
- }
- case '%': /* bans */
- {
- char *pv, *p = 0, *ban;
- int first = 1;
- if (netride)
- break; /* Ignore bans */
- /* Run over all bans */
- for (pv = parv[n] + 1; (ban = ircd_strtok(&p, pv, " ")); pv = 0)
- {
- int ret;
- /*
- * The following part should do the following:
- * - If the new (un)ban is not a _change_ it is ignored.
- * - Else, add it to sendbuf for later use.
- * - If sendbuf is full, send it, and prepare a new
- * message in sendbuf.
- */
- ret = add_banid(sptr, chptr, ban, 1, add_banid_not_called);
- if (ret == 0)
- {
- add_banid_not_called = 0;
- /* Mark this new ban so we can send it to the clients later */
- chptr->banlist->flags |= CHFL_BURST_BAN;
- }
- if (ret != -1)
- /* A new ban was added or an existing one needs to be passed on.
- * Also add it to sendbuf: */
- add_token_to_sendbuf(ban, &sblen, &first, &send_it, '%', 0);
- }
- break; /* Done bans part */
- }
- default: /* nicks */
- {
- char *pv, *p = 0, *nick, *ptr;
- int first = 1;
- /* Default mode: */
- int default_mode = CHFL_DEOPPED;
- /* Run over all nicks */
- for (pv = parv[n]; (nick = ircd_strtok(&p, pv, ",")); pv = 0)
- {
- struct Client *acptr;
- if ((ptr = strchr(nick, ':'))) /* New default mode ? */
- {
- *ptr = '\0'; /* Fix 'nick' */
- acptr = findNUser(nick);
- if (!netride)
- {
- /* Calculate new mode change: */
- default_mode = CHFL_DEOPPED;
- while (*(++ptr))
- if (*ptr == 'o')
- {
- default_mode |= CHFL_CHANOP;
- default_mode &= ~CHFL_DEOPPED;
- }
- else if (*ptr == 'v')
- default_mode |= CHFL_VOICE;
- else
- break;
- }
- }
- else
- acptr = findNUser(nick);
- /*
- * Note that at this point we already received a 'NICK' for any
- * <nick> numeric that is joining (and possibly opped) here.
- * Therefore we consider the following situations:
- * - The <nick> numeric exists and is from the direction of cptr: ok
- * - The <nick> numeric does not exist:
- * Apparently this previous <nick> numeric was killed (upstream)
- * or it collided with an existing <nick> name.
- * - The <nick> numeric exists but is from another direction:
- * Apparently this previous <nick> numeric was killed,
- * and due to a reroute it signed on via another link (probably
- * a nick [numeric] collision).
- * Note that it can't be a QUIT or SQUIT, because a QUIT would
- * come from the same direction as the BURST (cptr) while an
- * upstream SQUIT removes the source (server) and we would thus
- * have this BURST ignored already.
- * This means that if we find the nick and it is from the correct
- * direction, it joins. If it doesn't exist or is from another
- * direction, we have to ignore it. If all nicks are ignored, we
- * remove the channel again when it is empty and don't propagate
- * the BURST message.
- */
- if (acptr && acptr->from == cptr)
- {
- /*
- * The following should do the following:
- * - Add it to sendbuf for later use.
- * - If sendbuf is full, send it, and prepare a new
- * message in sendbuf.
- */
- add_token_to_sendbuf(nick, &sblen, &first, &send_it, 0,
- default_mode);
- /* Let is take effect: (Note that in the case of a netride
- * 'default_mode' is always CHFL_DEOPPED here). */
- add_user_to_channel(chptr, acptr, default_mode | CHFL_BURST_JOINED);
- }
- } /* <-- Next nick */
- if (!chptr->members) /* All nicks collided and channel is empty ? */
- {
- sub1_from_channel(chptr);
- return 0; /* Forget about the (rest of the) message... */
- }
- break; /* Done nicks part */
- }
- } /* <-- Next parameter if any */
- if (!chptr->members) /* This message only contained bans (then the previous
- message only contained collided nicks, see above) */
- {
- sub1_from_channel(chptr);
- if (!add_banid_not_called)
- while (next_removed_overlapped_ban());
- return 0; /* Forget about the (rest of the) message... */
- }
-
- /* The last (possibly only) message is always send here */
- if (send_it) /* Anything (left) to send ? */
- {
- struct DLink *lp;
- struct Membership* member;
-
- /* send 'sendbuf' to all downlinks */
- for (lp = me.serv->down; lp; lp = lp->next)
- {
- if (lp->value.cptr == cptr)
+ int check_modes;
+ if (parv[param][0] != '+')
continue;
- if (Protocol(lp->value.cptr) > 9)
- sendbufto_one(lp->value.cptr);
- }
-
- /*
- * Now we finally can screw sendbuf again...
- * Send all changes to the local clients:
- *
- * First send all joins and op them, because 2.9 servers
- * would protest with a HACK if we first de-opped people.
- * However, we don't send the +b bans yes, because we
- * DO first want to -b the old bans (otherwise it's confusing).
- */
-
- /* Send all joins: */
- for (member = chptr->members; member; member = member->next_member)
- if (IsBurstJoined(member))
+ check_modes = netride_modes(parc - param, parv + param, chptr->mode.key);
+ if (check_modes < 0)
{
- sendto_channel_butserv(chptr, member->user, ":%s JOIN :%s",
- member->user->name, chptr->chname);
+ if (chptr->users == 0)
+ sub1_from_channel(chptr);
+ return protocol_violation(sptr, "Invalid mode string in BURST");
}
-
- if (!netride)
- {
- /* Send all +o and +v modes: */
- for (member = chptr->members; member; member = member->next_member)
+ else if (check_modes)
{
- if (IsBurstJoined(member))
+ /* Clear any outstanding rogue invites */
+ mode_invite_clear(chptr);
+ for (member = chptr->members; member; member = nmember)
{
- int mode = CHFL_CHANOP;
- for (;;)
- {
- if ((member->status & mode))
- {
- modebuf[mblen2++] = (mode == CHFL_CHANOP) ? 'o' : 'v';
- parabuf[pblen2++] = ' ';
- strcpy(parabuf + pblen2, member->user->name);
- pblen2 += strlen(member->user->name);
- if (6 == ++cnt)
- {
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
- *parabuf = 0;
- pblen2 = 0;
- mblen2 = 1;
- cnt = 0;
- }
- }
- if (mode == CHFL_CHANOP)
- mode = CHFL_VOICE;
- else
- break;
- }
- }
- }
- /* Flush MODEs: */
- if (cnt > 0 || mblen2 > 1)
- {
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
- }
- }
- }
-
- if (wipeout)
- {
- struct Membership* member;
- struct SLink** ban;
- int mode;
- char m;
- int count = -1;
-
- /* Now cancel all previous simple modes */
- if ((prev_mode & MODE_SECRET))
- cancel_mode(sptr, chptr, 's', 0, &count);
- if ((prev_mode & MODE_PRIVATE))
- cancel_mode(sptr, chptr, 'p', 0, &count);
- if ((prev_mode & MODE_MODERATED))
- cancel_mode(sptr, chptr, 'm', 0, &count);
- if ((prev_mode & MODE_TOPICLIMIT))
- cancel_mode(sptr, chptr, 't', 0, &count);
- if ((prev_mode & MODE_INVITEONLY))
- cancel_mode(sptr, chptr, 'i', 0, &count);
- if ((prev_mode & MODE_NOPRIVMSGS))
- cancel_mode(sptr, chptr, 'n', 0, &count);
- if ((prev_mode & MODE_LIMIT))
- {
- current_mode->limit = 0;
- cancel_mode(sptr, chptr, 'l', 0, &count);
- }
- if ((prev_mode & MODE_KEY))
- {
- *current_mode->key = 0;
- cancel_mode(sptr, chptr, 'k', prev_key, &count);
- }
- current_mode->mode &= ~prev_mode;
-
- /* And deop and devoice all net.riders on my side */
- mode = CHFL_CHANOP;
- m = 'o';
- for (;;)
- {
- struct Membership* member_next = 0;
-
- for (member = chptr->members; member; member = member_next)
- {
- member_next = member->next_member;
- if (IsBurstJoined(member))
- continue; /* This is not a net.rider from
- this side of the net.junction */
-#if defined(NO_INVITE_NETRIDE)
- /*
- * Kick net riding users from invite only channels.
- * - Isomer 25-11-1999
- */
- if (chptr->mode.mode & MODE_INVITEONLY) {
- /* kick is magical - lotsa zombies and other undead.
- * I'm hoping this is the right idea, comments anyone?
- * Set everyone to a zombie, remove ops, and then send kicks
- * everywhere...
+ nmember = member->next_member;
+ if (!MyUser(member->user) || IsZombie(member))
+ continue;
+ /* Kick as netrider if key mismatch *or* remote channel is
+ * +i (unless user is an oper) *or* remote channel is +r
+ * (unless user has an account).
*/
- if (IsZombie(member)) { /* don't kick ppl twice */
- member->status = member->status & ~mode;
- continue;
- }
-
- sendto_highprot_butone(0, 10, "%s " TOK_KICK " %s %s%s :Net Rider",
- NumServ(&me), chptr->chname, NumNick(member->user));
- sendto_channel_butserv(chptr, sptr,
- ":%s KICK %s %s :Net Rider", me.name, chptr->chname,
- member->user->name);
-
- if (MyUser(member->user)) {
- sendto_lowprot_butone(0, 9, ":%s PART %s",
- member->user->name, chptr->chname, member->user->name);
- sendto_highprot_butone(0, 10, "%s%s PART %s",
- NumNick(member->user), chptr->chname);
- remove_user_from_channel(member->user, chptr);
- }
- else {
- member->status = (member->status & ~mode) | CHFL_ZOMBIE;
- }
- continue;
- }
-#endif /* defined(NO_INVITE_NETRIDE) */
- if ((member->status & mode))
- {
- member->status &= ~mode;
- if (mode == CHFL_CHANOP)
- SetDeopped(member);
- cancel_mode(sptr, chptr, m, member->user->name, &count);
+ if (!(check_modes & MODE_KEY)
+ && (!(check_modes & MODE_INVITEONLY) || IsAnOper(member->user))
+ && (!(check_modes & MODE_REGONLY) || IsAccount(member->user)))
+ continue;
+ sendcmdto_serv_butone(&me, CMD_KICK, NULL, "%H %C :Net Rider", chptr, member->user);
+ sendcmdto_channel_butserv_butone(&his, CMD_KICK, chptr, NULL, 0, "%H %C :Net Rider", chptr, member->user);
+ make_zombie(member, member->user, &me, &me, chptr);
}
}
- if (mode == CHFL_VOICE)
- break;
- mode = CHFL_VOICE;
- m = 'v';
+ break;
}
- /* And finally wipeout all bans that are left */
- for (ban = &chptr->banlist; *ban; ) {
- struct SLink* tmp = *ban;
- if ((tmp->flags & CHFL_BURST_BAN_WIPEOUT)) {
- struct Membership* member_z;
+ /* If the channel had only locals, it went away by now. */
+ if (!(chptr = get_channel(sptr, parv[1], CGT_CREATE)))
+ return 0; /* can't create the channel? */
+ }
- *ban = tmp->next;
- cancel_mode(sptr, chptr, 'b', tmp->value.ban.banstr, &count);
+ /* turn off burst joined flag */
+ for (member = chptr->members; member; member = member->next_member)
+ member->status &= ~(CHFL_BURST_JOINED|CHFL_BURST_ALREADY_OPPED|CHFL_BURST_ALREADY_VOICED);
- /* Copied from del_banid(): */
- MyFree(tmp->value.ban.banstr);
- MyFree(tmp->value.ban.who);
- free_link(tmp);
+ if (!chptr->creationtime) /* mark channel as created during BURST */
+ chptr->mode.mode |= MODE_BURSTADDED;
- /* Erase ban-valid-bit, for channel members that are banned */
- for (member_z = chptr->members; member_z; member_z = member_z->next_member)
- if ((member_z->status & CHFL_BANVALIDMASK) == CHFL_BANVALIDMASK)
- ClearBanValid(member_z);
- }
- else
- ban = &tmp->next;
- }
- /* Also wipeout overlapped bans */
- if (!add_banid_not_called)
- {
- struct SLink *ban;
- while ((ban = next_removed_overlapped_ban()))
- cancel_mode(sptr, chptr, 'b', ban->value.ban.banstr, &count);
- }
- cancel_mode(sptr, chptr, 0, 0, &count); /* flush */
- }
+ /* new channel or an older one */
+ if (!chptr->creationtime || chptr->creationtime > timestamp) {
+ chptr->creationtime = timestamp;
- if (send_it && !netride)
- {
- struct SLink *bl;
- int deban;
+ modebuf_init(mbuf = &modebuf, &me, cptr, chptr,
+ MODEBUF_DEST_CHANNEL | MODEBUF_DEST_NOKEY);
+ modebuf_mode(mbuf, MODE_DEL | chptr->mode.mode); /* wipeout modes */
+ chptr->mode.mode &= MODE_BURSTADDED | MODE_WASDELJOINS;
- if (add_banid_not_called || !(bl = next_removed_overlapped_ban()))
- {
- deban = 0;
- bl = chptr->banlist;
- *modebuf = '+';
+ /* wipe out modes not represented in chptr->mode.mode */
+ if (chptr->mode.limit) {
+ modebuf_mode_uint(mbuf, MODE_DEL | MODE_LIMIT, chptr->mode.limit);
+ chptr->mode.limit = 0;
}
- else
- {
- deban = 1;
- *modebuf = '-';
+ if (chptr->mode.key[0]) {
+ modebuf_mode_string(mbuf, MODE_DEL | MODE_KEY, chptr->mode.key, 0);
+ chptr->mode.key[0] = '\0';
}
-
- mblen2 = 1;
- pblen2 = 0;
- cnt = 0;
- for (;;)
- {
- size_t nblen = 0;
- if (bl)
- nblen = strlen(bl->value.ban.banstr);
- if (cnt == 6 || (!bl && cnt) || pblen2 + nblen + 12 > MODEBUFLEN) /* The last check is to make sure
- that the receiving 2.9 will
- still process this */
- {
- /* Time to send buffer */
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
- *modebuf = deban ? '-' : '+';
- mblen2 = 1;
- pblen2 = 0;
- cnt = 0;
- }
- if (!bl) /* Done ? */
- break;
- if (deban || (bl->flags & CHFL_BURST_BAN))
- {
- /* Add ban to buffers and remove it */
- modebuf[mblen2++] = 'b';
- parabuf[pblen2++] = ' ';
- strcpy(parabuf + pblen2, bl->value.ban.banstr);
- pblen2 += nblen;
- cnt++;
- bl->flags &= ~CHFL_BURST_BAN;
- }
- if (deban)
- {
- if (!(bl = next_removed_overlapped_ban()))
- {
- deban = 0;
- modebuf[mblen2++] = '+';
- bl = chptr->banlist;
- }
- }
- else
- bl = bl->next;
+ if (chptr->mode.upass[0]) {
+ modebuf_mode_string(mbuf, MODE_DEL | MODE_UPASS, chptr->mode.upass, 0);
+ chptr->mode.upass[0] = '\0';
}
- /* Flush MODE [-b]+b ...: */
- if (cnt > 0 || mblen2 > 1)
- {
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
+ if (chptr->mode.apass[0]) {
+ modebuf_mode_string(mbuf, MODE_DEL | MODE_APASS, chptr->mode.apass, 0);
+ chptr->mode.apass[0] = '\0';
}
- }
- return 0;
-}
+ parse_flags |= (MODE_PARSE_SET | MODE_PARSE_WIPEOUT); /* wipeout keys */
-#if 0
-/*
- * m_burst -- by Run carlo@runaway.xs4all.nl december 1995 till march 1997
- *
- * parv[0] = sender prefix
- * parv[1] = channel name
- * parv[2] = channel timestamp
- * The meaning of the following parv[]'s depend on their first character:
- * If parv[n] starts with a '+':
- * Net burst, additive modes
- * parv[n] = <mode>
- * parv[n+1] = <param> (optional)
- * parv[n+2] = <param> (optional)
- * If parv[n] starts with a '%', then n will be parc-1:
- * parv[n] = %<ban> <ban> <ban> ...
- * If parv[n] starts with another character:
- * parv[n] = <nick>[:<mode>],<nick>[:<mode>],...
- * where <mode> is the channel mode (ov) of nick and all following nicks.
- *
- * Example:
- * "S BURST #channel 87654321 +ntkl key 123 AAA,AAB:o,BAA,BAB:ov :%ban1 ban2"
- *
- * Anti net.ride code.
- *
- * When the channel already exist, and its TS is larger then
- * the TS in the BURST message, then we cancel all existing modes.
- * If its is smaller then the received BURST message is ignored.
- * If it's equal, then the received modes are just added.
- */
-int m_burst(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
-{
- struct Channel* chptr;
- time_t timestamp;
- int netride = 0;
- int wipeout = 0;
- int n;
- int send_it = 0;
- int add_banid_not_called = 1;
- struct Mode* current_mode;
- size_t sblen;
- size_t mblen = 0;
- int mblen2;
- int pblen2;
- int cnt;
- int prev_mode;
- char prev_key[KEYLEN + 1];
- struct Membership* member;
- struct SLink* lp;
- char modebuf[MODEBUFLEN];
- char parabuf[MODEBUFLEN];
- char bmodebuf[MODEBUFLEN];
- char bparambuf[MODEBUFLEN];
-
- /* BURST is only for servers and has at least 4 parameters */
- if (!IsServer(cptr) || parc < 4)
- return 0;
-
- if (!IsBurst(sptr))
- {
- int i;
- char *p;
- if (find_conf_byhost(cptr->confs, sptr->name, CONF_UWORLD))
- {
- p =
- sprintf_irc(sendbuf,
- ":%s NOTICE * :*** Notice -- HACK(4): %s BURST %s %s", me.name,
- sptr->name, parv[1], parv[2]);
- for (i = 3; i < parc - 1; ++i)
- p = sprintf_irc(p, " %s", parv[i]);
- sprintf_irc(p, " :%s", parv[parc - 1]);
- sendbufto_op_mask(SNO_HACK4);
- }
- else
- {
-#if 1 /* FIXME: This should be removed after all HUBs upgraded to ircu2.10.05 */
- SetBurst(sptr);
- if (MyConnect(sptr))
-#endif
- return exit_client_msg(cptr, cptr, &me,
- "HACK: BURST message outside net.burst from %s", sptr->name);
+ /* mark bans for wipeout */
+ for (lp = chptr->banlist; lp; lp = lp->next)
+ lp->flags |= BAN_BURST_WIPEOUT;
+
+ /* clear topic set by netrider (if set) */
+ if (*chptr->topic) {
+ *chptr->topic = '\0';
+ *chptr->topic_nick = '\0';
+ chptr->topic_time = 0;
+ sendcmdto_channel_butserv_butone(&his, CMD_TOPIC, chptr, NULL, 0,
+ "%H :%s", chptr, chptr->topic);
}
- }
+ } else if (chptr->creationtime == timestamp) {
+ modebuf_init(mbuf = &modebuf, &me, cptr, chptr,
+ MODEBUF_DEST_CHANNEL | MODEBUF_DEST_NOKEY);
- /* Find the channel, or create it - note that the creation time
- * will be 0 if it has to be created */
- chptr = get_channel(sptr, parv[1], CGT_CREATE);
- current_mode = &chptr->mode;
- prev_mode = chptr->mode.mode;
- if (*chptr->mode.key)
- {
- prev_mode |= MODE_KEY;
- strcpy(prev_key, chptr->mode.key);
- }
- if (chptr->mode.limit)
- prev_mode |= MODE_LIMIT;
-
- timestamp = atoi(parv[2]);
-
- /* Copy the new TS when the received creationtime appears to be older */
- if (!chptr->creationtime || chptr->creationtime > timestamp)
- {
- /* Set the new timestamp */
- chptr->creationtime = timestamp;
- send_it = 1; /* Make sure we pass on the different timestamp ! */
- /* Mark all bans as needed to be wiped out */
- for (lp = chptr->banlist; lp; lp = lp->next)
- lp->flags |= CHFL_BURST_BAN_WIPEOUT;
- /*
- * Only the first BURST for this channel can have creationtime > timestamp,
- * so at this moment ALL members are on OUR side, and thus all net.riders:
- */
- wipeout = 1;
+ parse_flags |= MODE_PARSE_SET; /* set new modes */
}
- for (member = chptr->members; member; member = member->next_member)
- member->status &= ~CHFL_BURST_JOINED; /* Set later for nicks in the BURST msg */
- /* If `wipeout' is set then these will be deopped later. */
- /* If the entering creationtime is younger, ignore the modes */
- if (chptr->creationtime < timestamp)
- netride = 1; /* Only pass on the nicks (so they JOIN) */
-
- /* Prepare buffers to pass the message */
- *bparambuf = *bmodebuf = *parabuf = '\0';
- pblen2 = 0;
- *modebuf = '+';
- mblen2 = 1;
- cnt = 0;
- sblen = sprintf_irc(sendbuf, "%s B %s " TIME_T_FMT,
- NumServ(sptr), chptr->chname, chptr->creationtime) - sendbuf;
-
- /* Run over all remaining parameters */
- for (n = 3; n < parc; n++)
- switch (*parv[n]) /* What type is it ? mode, nicks or bans ? */
- {
- case '+': /* modes */
+ param = 3; /* parse parameters */
+ while (param < parc) {
+ switch (*parv[param]) {
+ case '+': /* parameter introduces a mode string */
+ param += mode_parse(mbuf, cptr, sptr, chptr, parc - param,
+ parv + param, parse_flags, NULL);
+ break;
+
+ case '%': /* parameter contains bans */
+ if (parse_flags & MODE_PARSE_SET) {
+ char *banlist = parv[param] + 1, *p = 0, *ban, *ptr;
+ struct Ban *newban;
+
+ for (ban = ircd_strtok(&p, banlist, " "); ban;
+ ban = ircd_strtok(&p, 0, " ")) {
+ ban = collapse(pretty_mask(ban));
+
+ /*
+ * Yeah, we should probably do this elsewhere, and make it better
+ * and more general; this will hold until we get there, though.
+ * I dislike the current add_banid API... -Kev
+ *
+ * I wish there were a better algo. for this than the n^2 one
+ * shown below *sigh*
+ */
+ for (lp = chptr->banlist; lp; lp = lp->next) {
+ if (!ircd_strcmp(lp->banstr, ban)) {
+ ban = 0; /* don't add ban */
+ lp->flags &= ~BAN_BURST_WIPEOUT; /* not wiping out */
+ break; /* new ban already existed; don't even repropagate */
+ } else if (!(lp->flags & BAN_BURST_WIPEOUT) &&
+ !mmatch(lp->banstr, ban)) {
+ ban = 0; /* don't add ban unless wiping out bans */
+ break; /* new ban is encompassed by an existing one; drop */
+ } else if (!mmatch(ban, lp->banstr))
+ lp->flags |= BAN_OVERLAPPED; /* remove overlapping ban */
+
+ if (!lp->next)
+ break;
+ }
+
+ if (ban) { /* add the new ban to the end of the list */
+ /* Build ban buffer */
+ if (!banpos) {
+ banstr[banpos++] = ' ';
+ banstr[banpos++] = ':';
+ banstr[banpos++] = '%';
+ } else
+ banstr[banpos++] = ' ';
+ for (ptr = ban; *ptr; ptr++) /* add ban to buffer */
+ banstr[banpos++] = *ptr;
+
+ newban = make_ban(ban); /* create new ban */
+ strcpy(newban->who, "*");
+ newban->when = TStime();
+ newban->flags |= BAN_BURSTED;
+ newban->next = 0;
+ if (lp)
+ lp->next = newban; /* link it in */
+ else
+ chptr->banlist = newban;
+ }
+ }
+ }
+ param++; /* look at next param */
+ break;
+
+ default: /* parameter contains clients */
{
- char *p = parv[n];
- while (*(++p)) /* Run over all mode characters */
- {
- switch (*p) /* which mode ? */
- {
- /*
- * The following cases all do the following:
- * - In case wipeout needed, reset 'prev_mode' to indicate this
- * mode should not be cancelled.
- * - If wipeout or (not netride and the new mode is a change),
- * add it to bmodebuf and bparabuf for propagation.
- * - Else ignore it.
- * - Add it to modebuf and parabuf for propagation to the
- * clients when not netride and the new mode is a change.
- * Special cases:
- * - If a +s is received, cancel a +p and sent a -p to the
- * clients too (if +p was set).
- * - If a +p is received and +s is set, ignore the +p.
- */
- case 'i':
- {
- int tmp;
- prev_mode &= ~MODE_INVITEONLY;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_INVITEONLY)) || wipeout)
- {
- bmodebuf[mblen++] = 'i';
- current_mode->mode |= MODE_INVITEONLY;
- }
- if (!tmp)
- modebuf[mblen2++] = 'i';
- break;
- }
- case 'k':
- {
- int tmp;
- char *param = parv[++n];
- prev_mode &= ~MODE_KEY;
- if (!(tmp = netride || (*current_mode->key &&
- (!strcmp(current_mode->key, param) ||
- (!wipeout && strcmp(current_mode->key, param) < 0)))) ||
- wipeout)
- {
- bmodebuf[mblen++] = 'k';
- strcat(bparambuf, " ");
- strcat(bparambuf, param);
- ircd_strncpy(current_mode->key, param, KEYLEN);
- }
- if (!tmp && !wipeout)
- {
- modebuf[mblen2++] = 'k';
- parabuf[pblen2++] = ' ';
- strcpy(parabuf + pblen2, param);
- pblen2 += strlen(param);
- cnt++;
- }
- break;
- }
- case 'l':
- {
- int tmp;
- unsigned int param = atoi(parv[++n]);
- prev_mode &= ~MODE_LIMIT;
- if (!(tmp = netride || (current_mode->limit &&
- (current_mode->limit == param ||
- (!wipeout && current_mode->limit < param)))) || wipeout)
- {
- bmodebuf[mblen++] = 'l';
- sprintf_irc(bparambuf + strlen(bparambuf), " %d", param);
- current_mode->limit = param;
- }
- if (!tmp)
- {
- modebuf[mblen2++] = 'l';
- pblen2 = sprintf_irc(parabuf + pblen2, " %d", param) - parabuf;
- cnt++;
- }
- break;
- }
- case 'm':
- {
- int tmp;
- prev_mode &= ~MODE_MODERATED;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_MODERATED)) || wipeout)
- {
- bmodebuf[mblen++] = 'm';
- current_mode->mode |= MODE_MODERATED;
- }
- if (!tmp)
- modebuf[mblen2++] = 'm';
- break;
- }
- case 'n':
- {
- int tmp;
- prev_mode &= ~MODE_NOPRIVMSGS;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_NOPRIVMSGS)) || wipeout)
- {
- bmodebuf[mblen++] = 'n';
- current_mode->mode |= MODE_NOPRIVMSGS;
- }
- if (!tmp)
- modebuf[mblen2++] = 'n';
- break;
- }
- case 'p':
- {
- int tmp;
-
- /* Special case: */
- if (!netride && !wipeout && (current_mode->mode & MODE_SECRET))
- break;
-
- prev_mode &= ~MODE_PRIVATE;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_PRIVATE)) || wipeout)
- {
- bmodebuf[mblen++] = 'p';
- current_mode->mode |= MODE_PRIVATE;
- }
- if (!tmp)
- modebuf[mblen2++] = 'p';
- break;
- }
- case 's':
- {
- int tmp;
- prev_mode &= ~MODE_SECRET;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_SECRET)) || wipeout)
- {
- bmodebuf[mblen++] = 's';
- current_mode->mode |= MODE_SECRET;
- }
- if (!tmp)
- modebuf[mblen2++] = 's';
-
- /* Special case: */
- if (!netride && !wipeout && (current_mode->mode & MODE_PRIVATE))
- {
- int i;
- for (i = mblen2 - 1; i >= 0; --i)
- modebuf[i + 2] = modebuf[i];
- modebuf[0] = '-';
- modebuf[1] = 'p';
- mblen2 += 2;
- current_mode->mode &= ~MODE_PRIVATE;
- }
-
- break;
- }
- case 't':
- {
- int tmp;
- prev_mode &= ~MODE_TOPICLIMIT;
- if (!(tmp = netride ||
- (current_mode->mode & MODE_TOPICLIMIT)) || wipeout)
- {
- bmodebuf[mblen++] = 't';
- current_mode->mode |= MODE_TOPICLIMIT;
- }
- if (!tmp)
- modebuf[mblen2++] = 't';
- break;
- }
- }
- } /* <-- while over all modes */
-
- bmodebuf[mblen] = '\0';
- sendbuf[sblen] = '\0';
- if (mblen) /* Anything to send at all ? */
- {
- send_it = 1;
- strcpy(sendbuf + sblen, " +");
- sblen += 2;
- strcpy(sendbuf + sblen, bmodebuf);
- sblen += mblen;
- strcpy(sendbuf + sblen, bparambuf);
- sblen += strlen(bparambuf);
- }
- break; /* Done mode part */
- }
- case '%': /* bans */
- {
- char *pv, *p = 0, *ban;
- int first = 1;
- if (netride)
- break; /* Ignore bans */
- /* Run over all bans */
- for (pv = parv[n] + 1; (ban = ircd_strtok(&p, pv, " ")); pv = 0)
- {
- int ret;
- /*
- * The following part should do the following:
- * - If the new (un)ban is not a _change_ it is ignored.
- * - Else, add it to sendbuf for later use.
- * - If sendbuf is full, send it, and prepare a new
- * message in sendbuf.
- */
- ret = add_banid(sptr, chptr, ban, 1, add_banid_not_called);
- if (ret == 0)
- {
- add_banid_not_called = 0;
- /* Mark this new ban so we can send it to the clients later */
- chptr->banlist->flags |= CHFL_BURST_BAN;
- }
- if (ret != -1)
- /* A new ban was added or an existing one needs to be passed on.
- * Also add it to sendbuf: */
- add_token_to_sendbuf(ban, &sblen, &first, &send_it, '%', 0);
- }
- break; /* Done bans part */
- }
- default: /* nicks */
- {
- char *pv, *p = 0, *nick, *ptr;
- int first = 1;
- /* Default mode: */
- int default_mode = CHFL_DEOPPED;
- /* Run over all nicks */
- for (pv = parv[n]; (nick = ircd_strtok(&p, pv, ",")); pv = 0)
- {
- struct Client *acptr;
- if ((ptr = strchr(nick, ':'))) /* New default mode ? */
- {
- *ptr = '\0'; /* Fix 'nick' */
- acptr = findNUser(nick);
- if (!netride)
- {
- /* Calculate new mode change: */
- default_mode = CHFL_DEOPPED;
- while (*(++ptr))
- if (*ptr == 'o')
- {
- default_mode |= CHFL_CHANOP;
- default_mode &= ~CHFL_DEOPPED;
+ struct Client *acptr;
+ char *nicklist = parv[param], *p = 0, *nick, *ptr;
+ int current_mode, last_mode, base_mode;
+ int oplevel = -1; /* Mark first field with digits: means the same as 'o' (but with level). */
+ int last_oplevel = 0;
+ struct Membership* member;
+
+ base_mode = CHFL_DEOPPED | CHFL_BURST_JOINED;
+ if (chptr->mode.mode & MODE_DELJOINS)
+ base_mode |= CHFL_DELAYED;
+ current_mode = last_mode = base_mode;
+
+ for (nick = ircd_strtok(&p, nicklist, ","); nick;
+ nick = ircd_strtok(&p, 0, ",")) {
+
+ if ((ptr = strchr(nick, ':'))) { /* new flags; deal */
+ *ptr++ = '\0';
+
+ if (parse_flags & MODE_PARSE_SET) {
+ int current_mode_needs_reset;
+ for (current_mode_needs_reset = 1; *ptr; ptr++) {
+ if (*ptr == 'o') { /* has oper status */
+ /*
+ * An 'o' is pre-oplevel protocol, so this is only for
+ * backwards compatibility. Give them an op-level of
+ * MAXOPLEVEL so everyone can deop them.
+ */
+ oplevel = MAXOPLEVEL;
+ if (current_mode_needs_reset) {
+ current_mode = base_mode;
+ current_mode_needs_reset = 0;
+ }
+ current_mode = (current_mode & ~(CHFL_DEOPPED | CHFL_DELAYED)) | CHFL_CHANOP;
+ /*
+ * Older servers may send XXYYY:ov, in which case we
+ * do not want to use the code for 'v' below.
+ */
+ if (ptr[1] == 'v') {
+ current_mode |= CHFL_VOICE;
+ ptr++;
+ }
+ }
+ else if (*ptr == 'v') { /* has voice status */
+ if (current_mode_needs_reset) {
+ current_mode = base_mode;
+ current_mode_needs_reset = 0;
+ }
+ current_mode = (current_mode & ~CHFL_DELAYED) | CHFL_VOICE;
+ oplevel = -1; /* subsequent digits are an absolute op-level value. */
}
- else if (*ptr == 'v')
- default_mode |= CHFL_VOICE;
- else
- break;
- }
- }
- else
- acptr = findNUser(nick);
- /*
- * Note that at this point we already received a 'NICK' for any
- * <nick> numeric that is joining (and possibly opped) here.
- * Therefore we consider the following situations:
- * - The <nick> numeric exists and is from the direction of cptr: ok
- * - The <nick> numeric does not exist:
- * Apparently this previous <nick> numeric was killed (upstream)
- * or it collided with an existing <nick> name.
- * - The <nick> numeric exists but is from another direction:
- * Apparently this previous <nick> numeric was killed,
- * and due to a reroute it signed on via another link (probably
- * a nick [numeric] collision).
- * Note that it can't be a QUIT or SQUIT, because a QUIT would
- * come from the same direction as the BURST (cptr) while an
- * upstream SQUIT removes the source (server) and we would thus
- * have this BURST ignored already.
- * This means that if we find the nick and it is from the correct
- * direction, it joins. If it doesn't exist or is from another
- * direction, we have to ignore it. If all nicks are ignored, we
- * remove the channel again when it is empty and don't propagate
- * the BURST message.
- */
- if (acptr && acptr->from == cptr)
- {
- /*
- * The following should do the following:
- * - Add it to sendbuf for later use.
- * - If sendbuf is full, send it, and prepare a new
- * message in sendbuf.
- */
- add_token_to_sendbuf(nick, &sblen, &first, &send_it, 0,
- default_mode);
- /* Let is take effect: (Note that in the case of a netride
- * 'default_mode' is always CHFL_DEOPPED here). */
- add_user_to_channel(chptr, acptr, default_mode | CHFL_BURST_JOINED);
- }
- } /* <-- Next nick */
- if (!chptr->members) /* All nicks collided and channel is empty ? */
- {
- sub1_from_channel(chptr);
- return 0; /* Forget about the (rest of the) message... */
- }
- break; /* Done nicks part */
- }
- } /* <-- Next parameter if any */
- if (!chptr->members) /* This message only contained bans (then the previous
- message only contained collided nicks, see above) */
- {
- sub1_from_channel(chptr);
- if (!add_banid_not_called)
- while (next_removed_overlapped_ban());
- return 0; /* Forget about the (rest of the) message... */
- }
-
- /* The last (possibly only) message is always send here */
- if (send_it) /* Anything (left) to send ? */
- {
- struct DLink *lp;
- struct Membership* member;
-
- /* send 'sendbuf' to all downlinks */
- for (lp = me.serv->down; lp; lp = lp->next)
- {
- if (lp->value.cptr == cptr)
- continue;
- if (Protocol(lp->value.cptr) > 9)
- sendbufto_one(lp->value.cptr);
- }
-
- /*
- * Now we finally can screw sendbuf again...
- * Send all changes to the local clients:
- *
- * First send all joins and op them, because 2.9 servers
- * would protest with a HACK if we first de-opped people.
- * However, we don't send the +b bans yes, because we
- * DO first want to -b the old bans (otherwise it's confusing).
- */
-
- /* Send all joins: */
- for (member = chptr->members; member; member = member->next_member)
- if (IsBurstJoined(member))
- {
- sendto_channel_butserv(chptr, member->user, ":%s JOIN :%s",
- member->user->name, chptr->chname);
- }
-
- if (!netride)
- {
- /* Send all +o and +v modes: */
- for (member = chptr->members; member; member = member->next_member)
- {
- if (IsBurstJoined(member))
- {
- int mode = CHFL_CHANOP;
- for (;;)
- {
- if ((member->status & mode))
+ else if (IsDigit(*ptr)) {
+ int level_increment = 0;
+ if (oplevel == -1) { /* op-level is absolute value? */
+ if (current_mode_needs_reset) {
+ current_mode = base_mode;
+ current_mode_needs_reset = 0;
+ }
+ oplevel = 0;
+ }
+ current_mode = (current_mode & ~(CHFL_DEOPPED | CHFL_DELAYED)) | CHFL_CHANOP;
+ do {
+ level_increment = 10 * level_increment + *ptr++ - '0';
+ } while (IsDigit(*ptr));
+ --ptr;
+ oplevel += level_increment;
+ if (oplevel > MAXOPLEVEL) {
+ protocol_violation(sptr, "Invalid cumulative oplevel %u during burst", oplevel);
+ oplevel = MAXOPLEVEL;
+ break;
+ }
+ }
+ else { /* I don't recognize that flag */
+ protocol_violation(sptr, "Invalid flag '%c' in nick part of burst", *ptr);
+ break; /* so stop processing */
+ }
+ }
+ }
+ }
+
+ if (!(acptr = findNUser(nick)) || cli_from(acptr) != cptr)
+ continue; /* ignore this client */
+
+ /* Build nick buffer */
+ nickstr[nickpos] = nickpos ? ',' : ' '; /* first char */
+ nickpos++;
+
+ for (ptr = nick; *ptr; ptr++) /* store nick */
+ nickstr[nickpos++] = *ptr;
+
+ if (current_mode != last_mode) { /* if mode changed... */
+ last_mode = current_mode;
+ last_oplevel = oplevel;
+
+ nickstr[nickpos++] = ':'; /* add a specifier */
+ if (current_mode & CHFL_VOICE)
+ nickstr[nickpos++] = 'v';
+ if (current_mode & CHFL_CHANOP)
{
- modebuf[mblen2++] = (mode == CHFL_CHANOP) ? 'o' : 'v';
- parabuf[pblen2++] = ' ';
- strcpy(parabuf + pblen2, member->user->name);
- pblen2 += strlen(member->user->name);
- if (6 == ++cnt)
- {
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
- *parabuf = 0;
- pblen2 = 0;
- mblen2 = 1;
- cnt = 0;
- }
+ if (oplevel != MAXOPLEVEL)
+ nickpos += ircd_snprintf(0, nickstr + nickpos, sizeof(nickstr) - nickpos, "%u", oplevel);
+ else
+ nickstr[nickpos++] = 'o';
}
- if (mode == CHFL_CHANOP)
- mode = CHFL_VOICE;
- else
- break;
- }
- }
+ } else if (current_mode & CHFL_CHANOP && oplevel != last_oplevel) { /* if just op level changed... */
+ nickstr[nickpos++] = ':'; /* add a specifier */
+ nickpos += ircd_snprintf(0, nickstr + nickpos, sizeof(nickstr) - nickpos, "%u", oplevel - last_oplevel);
+ last_oplevel = oplevel;
+ }
+
+ if (!(member = find_member_link(chptr, acptr)))
+ {
+ add_user_to_channel(chptr, acptr, current_mode, oplevel);
+ if (!(current_mode & CHFL_DELAYED))
+ sendcmdto_channel_butserv_butone(acptr, CMD_JOIN, chptr, NULL, 0, "%H", chptr);
+ }
+ else
+ {
+ /* The member was already joined (either by CREATE or JOIN).
+ Remember the current mode. */
+ if (member->status & CHFL_CHANOP)
+ member->status |= CHFL_BURST_ALREADY_OPPED;
+ if (member->status & CHFL_VOICE)
+ member->status |= CHFL_BURST_ALREADY_VOICED;
+ /* Synchronize with the burst. */
+ member->status |= CHFL_BURST_JOINED | (current_mode & (CHFL_CHANOP|CHFL_VOICE));
+ SetOpLevel(member, oplevel);
+ }
+ }
}
- /* Flush MODEs: */
- if (cnt > 0 || mblen2 > 1)
- {
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
+ param++;
+ break;
+ } /* switch (*parv[param]) */
+ } /* while (param < parc) */
+
+ nickstr[nickpos] = '\0';
+ banstr[banpos] = '\0';
+
+ if (parse_flags & MODE_PARSE_SET) {
+ modebuf_extract(mbuf, modestr + 1); /* for sending BURST onward */
+ modestr[0] = modestr[1] ? ' ' : '\0';
+ } else
+ modestr[0] = '\0';
+
+ sendcmdto_serv_butone(sptr, CMD_BURST, cptr, "%H %Tu%s%s%s", chptr,
+ chptr->creationtime, modestr, nickstr, banstr);
+
+ if (parse_flags & MODE_PARSE_WIPEOUT || banpos)
+ mode_ban_invalidate(chptr);
+
+ if (parse_flags & MODE_PARSE_SET) { /* any modes changed? */
+ /* first deal with channel members */
+ for (member = chptr->members; member; member = member->next_member) {
+ if (member->status & CHFL_BURST_JOINED) { /* joined during burst */
+ if ((member->status & CHFL_CHANOP) && !(member->status & CHFL_BURST_ALREADY_OPPED))
+ modebuf_mode_client(mbuf, MODE_ADD | CHFL_CHANOP, member->user, OpLevel(member));
+ if ((member->status & CHFL_VOICE) && !(member->status & CHFL_BURST_ALREADY_VOICED))
+ modebuf_mode_client(mbuf, MODE_ADD | CHFL_VOICE, member->user, OpLevel(member));
+ } else if (parse_flags & MODE_PARSE_WIPEOUT) { /* wipeout old ops */
+ if (member->status & CHFL_CHANOP)
+ modebuf_mode_client(mbuf, MODE_DEL | CHFL_CHANOP, member->user, OpLevel(member));
+ if (member->status & CHFL_VOICE)
+ modebuf_mode_client(mbuf, MODE_DEL | CHFL_VOICE, member->user, OpLevel(member));
+ member->status = (member->status
+ & ~(CHFL_CHANNEL_MANAGER | CHFL_CHANOP | CHFL_VOICE))
+ | CHFL_DEOPPED;
}
}
- }
-
- if (wipeout)
- {
- struct Membership* member;
- struct SLink** ban;
- int mode;
- char m;
- int count = -1;
- /* Now cancel all previous simple modes */
- if ((prev_mode & MODE_SECRET))
- cancel_mode(sptr, chptr, 's', 0, &count);
- if ((prev_mode & MODE_PRIVATE))
- cancel_mode(sptr, chptr, 'p', 0, &count);
- if ((prev_mode & MODE_MODERATED))
- cancel_mode(sptr, chptr, 'm', 0, &count);
- if ((prev_mode & MODE_TOPICLIMIT))
- cancel_mode(sptr, chptr, 't', 0, &count);
- if ((prev_mode & MODE_INVITEONLY))
- cancel_mode(sptr, chptr, 'i', 0, &count);
- if ((prev_mode & MODE_NOPRIVMSGS))
- cancel_mode(sptr, chptr, 'n', 0, &count);
- if ((prev_mode & MODE_LIMIT))
- {
- current_mode->limit = 0;
- cancel_mode(sptr, chptr, 'l', 0, &count);
+ /* Now deal with channel bans */
+ lp_p = &chptr->banlist;
+ while (*lp_p) {
+ lp = *lp_p;
+
+ /* remove ban from channel */
+ if (lp->flags & (BAN_OVERLAPPED | BAN_BURST_WIPEOUT)) {
+ char *bandup;
+ DupString(bandup, lp->banstr);
+ modebuf_mode_string(mbuf, MODE_DEL | MODE_BAN,
+ bandup, 1);
+ *lp_p = lp->next; /* clip out of list */
+ free_ban(lp);
+ continue;
+ } else if (lp->flags & BAN_BURSTED) /* add ban to channel */
+ modebuf_mode_string(mbuf, MODE_ADD | MODE_BAN,
+ lp->banstr, 0); /* don't free banstr */
+
+ lp->flags &= BAN_IPMASK; /* reset the flag */
+ lp_p = &(*lp_p)->next;
}
- if ((prev_mode & MODE_KEY))
- {
- *current_mode->key = 0;
- cancel_mode(sptr, chptr, 'k', prev_key, &count);
- }
- current_mode->mode &= ~prev_mode;
-
- /* And deop and devoice all net.riders on my side */
- mode = CHFL_CHANOP;
- m = 'o';
- for (;;)
- {
- struct Membership* member_next = 0;
-
- for (member = chptr->members; member; member = member_next)
- {
- member_next = member->next_member;
- if (IsBurstJoined(member))
- continue; /* This is not a net.rider from
- this side of the net.junction */
-#if defined(NO_INVITE_NETRIDE)
- /*
- * Kick net riding users from invite only channels.
- * - Isomer 25-11-1999
- */
- if (chptr->mode.mode & MODE_INVITEONLY) {
- /* kick is magical - lotsa zombies and other undead.
- * I'm hoping this is the right idea, comments anyone?
- * Set everyone to a zombie, remove ops, and then send kicks
- * everywhere...
- */
- if (IsZombie(member)) { /* don't kick ppl twice */
- member->status = member->status & ~mode;
- continue;
- }
- member->status = (member->status & ~mode) | CHFL_ZOMBIE;
-
- sendto_highprot_butone(0, 10, "%s " TOK_KICK "%s %s%s :Net Rider",
- NumServ(&me), chptr->chname, NumNick(member->user));
- sendto_channel_butserv(chptr, sptr,
- ":%s KICK %s %s :Net Rider", me.name, chptr->chname,
- member->user->name);
-
- if (MyUser(member->user)) {
- sendto_lowprot_butone(0, 9, ":%s PART %s",
- member->user->name, chptr->chname, member->user->name);
- sendto_highprot_butone(0, 10, "%s%s PART %s",
- NumNick(member->user), chptr->chname);
- remove_user_from_channel(member->user, chptr);
- }
- else {
- member->status = (member->status & ~mode) | CHFL_ZOMBIE;
- }
- continue;
- }
-#endif /* defined(NO_INVITE_NETRIDE) */
- if ((member->status & mode))
- {
- member->status &= ~mode;
- if (mode == CHFL_CHANOP)
- SetDeopped(member);
- cancel_mode(sptr, chptr, m, member->user->name, &count);
- }
- }
- if (mode == CHFL_VOICE)
- break;
- mode = CHFL_VOICE;
- m = 'v';
- }
-
- /* And finally wipeout all bans that are left */
- for (ban = &chptr->banlist; *ban; ) {
- struct SLink* tmp = *ban;
- if ((tmp->flags & CHFL_BURST_BAN_WIPEOUT)) {
- struct Membership* member_z;
-
- *ban = tmp->next;
- cancel_mode(sptr, chptr, 'b', tmp->value.ban.banstr, &count);
-
- /* Copied from del_banid(): */
- MyFree(tmp->value.ban.banstr);
- MyFree(tmp->value.ban.who);
- free_link(tmp);
-
- /* Erase ban-valid-bit, for channel members that are banned */
- for (member_z = chptr->members; member_z; member_z = member_z->next_member)
- if ((member_z->status & CHFL_BANVALIDMASK) == CHFL_BANVALIDMASK)
- ClearBanValid(member_z);
- }
- else
- ban = &tmp->next;
- }
- /* Also wipeout overlapped bans */
- if (!add_banid_not_called)
- {
- struct SLink *ban;
- while ((ban = next_removed_overlapped_ban()))
- cancel_mode(sptr, chptr, 'b', ban->value.ban.banstr, &count);
- }
- cancel_mode(sptr, chptr, 0, 0, &count); /* flush */
}
- if (send_it && !netride)
- {
- struct SLink *bl;
- int deban;
-
- if (add_banid_not_called || !(bl = next_removed_overlapped_ban()))
- {
- deban = 0;
- bl = chptr->banlist;
- *modebuf = '+';
- }
- else
- {
- deban = 1;
- *modebuf = '-';
- }
-
- mblen2 = 1;
- pblen2 = 0;
- cnt = 0;
- for (;;)
- {
- size_t nblen = 0;
- if (bl)
- nblen = strlen(bl->value.ban.banstr);
- if (cnt == 6 || (!bl && cnt) || pblen2 + nblen + 12 > MODEBUFLEN) /* The last check is to make sure
- that the receiving 2.9 will
- still process this */
- {
- /* Time to send buffer */
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
- *modebuf = deban ? '-' : '+';
- mblen2 = 1;
- pblen2 = 0;
- cnt = 0;
- }
- if (!bl) /* Done ? */
- break;
- if (deban || (bl->flags & CHFL_BURST_BAN))
- {
- /* Add ban to buffers and remove it */
- modebuf[mblen2++] = 'b';
- parabuf[pblen2++] = ' ';
- strcpy(parabuf + pblen2, bl->value.ban.banstr);
- pblen2 += nblen;
- cnt++;
- bl->flags &= ~CHFL_BURST_BAN;
- }
- if (deban)
- {
- if (!(bl = next_removed_overlapped_ban()))
- {
- deban = 0;
- modebuf[mblen2++] = '+';
- bl = chptr->banlist;
- }
- }
- else
- bl = bl->next;
- }
- /* Flush MODE [-b]+b ...: */
- if (cnt > 0 || mblen2 > 1)
- {
- modebuf[mblen2] = 0;
- sendto_channel_butserv(chptr, sptr, ":%s MODE %s %s%s",
- parv[0], chptr->chname, modebuf, parabuf);
- }
- }
-
- return 0;
+ return mbuf ? modebuf_flush(mbuf) : 0;
}
-#endif /* 0 */
-
projects / ircu2.10.12-pk.git / blobdiff