* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
- * $Id: channel.c 3580 2007-11-07 23:45:14Z jilles $
*/
#include "stdinc.h"
#include "s_newconf.h"
#include "logger.h"
#include "packet.h"
+#include "irc_dictionary.h"
struct config_channel_entry ConfigChannel;
rb_dlink_list global_channel_list;
allocate_channel(const char *chname)
{
struct Channel *chptr;
+ struct Dictionary *metadata;
chptr = rb_bh_alloc(channel_heap);
chptr->chname = rb_strdup(chname);
+
+ metadata = irc_dictionary_create(irccmp);
+ chptr->metadata = metadata;
return (chptr);
}
void
free_channel(struct Channel *chptr)
{
+ channel_metadata_clear(chptr);
rb_free(chptr->chname);
+ rb_free(chptr->mode_lock);
rb_bh_free(channel_heap, chptr);
}
const char *
find_channel_status(struct membership *msptr, int combine)
{
- static char buffer[3];
+ static char buffer[5];
char *p;
p = buffer;
+ if(is_admin(msptr))
+ {
+ if(!combine)
+ return "!";
+ *p++ = '!';
+ }
+
if(is_chanop(msptr))
{
if(!combine)
*p++ = '@';
}
+ if(is_halfop(msptr))
+ {
+ if(!combine)
+ return "%";
+ *p++ = '%';
+ }
+
if(is_voiced(msptr))
*p++ = '+';
return buffer;
}
+/* is_halfop()
+ *
+ * input - membership to check for halfops
+ * output - 1 if the user is halfopped, 0 if the user is not or halfop
+ * is disabled.
+ * side effects -
+ *
+ */
+int
+is_halfop(struct membership *msptr)
+{
+ if(!ConfigChannel.use_halfop)
+ return 0;
+ if(is_chmode_h(msptr))
+ return 1;
+ else
+ return 0;
+}
+
+/* is_admin()
+ *
+ * input - membership to check for admin
+ * output - 1 if the user is an admin, 0 if the user is not or admin
+ * is disabled.
+ * side effects -
+ *
+ */
+int
+is_admin(struct membership *msptr)
+{
+ if(!ConfigChannel.use_admin)
+ return 0;
+ if(is_chmode_a(msptr))
+ return 1;
+ else
+ return 0;
+}
+
+/* is_any_op()
+ *
+ * input - membership to check for ops
+ * output - 1 if the user is op, halfop, or admin, 0 elsewise
+ * side effects -
+ */
+int
+is_any_op(struct membership *msptr)
+{
+ if(is_chanop(msptr) || is_halfop(msptr) || is_admin(msptr))
+ return 1;
+ else
+ return 0;
+}
+
+/* is_chanop_voiced()
+ *
+ * input - memebership to check for status
+ * output - 1 if the user is op, halfop, admin, or voice, 0 elsewise
+ * side effects -
+ */
+int
+is_chanop_voiced(struct membership *msptr)
+{
+ if(is_chanop(msptr) || is_voiced(msptr) || is_halfop(msptr) || is_admin(msptr))
+ return 1;
+ else
+ return 0;
+}
+
+/* can_kick_deop()
+ *
+ * input - two memeberships
+ * output - 1 if the first memebership can kick/deop the second, 0 elsewise
+ * side effects -
+ */
+int
+can_kick_deop(struct membership *source, struct membership *target)
+{
+ if(is_chanop(source) && !is_admin(target))
+ return 1;
+ else if(is_halfop(source) && !is_any_op(target))
+ return 1;
+ else if(is_admin(source))
+ return 1;
+
+ return 0;
+}
+
/* add_user_to_channel()
*
* input - channel to add client to, client to add, channel flags
char src_host[NICKLEN + USERLEN + HOSTLEN + 6];
char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6];
char src_althost[NICKLEN + USERLEN + HOSTLEN + 6];
+ char text[10];
int use_althost = 0;
int i = 0;
hook_data_channel moduledata;
+ struct Metadata *md;
+ struct DictionaryIter iter;
s_assert(source_p->localClient != NULL);
- if(IsOverride(source_p))
- return 0;
-
rb_sprintf(src_host, "%s!%s@%s", source_p->name, source_p->username, source_p->host);
rb_sprintf(src_iphost, "%s!%s@%s", source_p->name, source_p->username, source_p->sockhost);
if(source_p->localClient->mangledhost != NULL)
if((is_banned(chptr, source_p, NULL, src_host, src_iphost)) == CHFL_BAN)
return (ERR_BANNEDFROMCHAN);
+ rb_snprintf(text, sizeof(text), "K%s", source_p->id);
+
+ DICTIONARY_FOREACH(md, &iter, chptr->metadata)
+ {
+ if(!strcmp(md->value, "KICKNOREJOIN") && !strcmp(md->name, text) && (md->timevalue + 2 > rb_current_time()))
+ return ERR_KICKNOREJOIN;
+ /* cleanup any stale KICKNOREJOIN metadata we find while we're at it */
+ if(!strcmp(md->value, "KICKNOREJOIN") && !(md->timevalue + 2 > rb_current_time()))
+ channel_metadata_delete(chptr, md->name, 0);
+ }
+
if(chptr->mode.mode & MODE_INVITEONLY)
{
RB_DLINK_FOREACH(invite, source_p->user->invited.head)
if(is_chanop_voiced(msptr))
return CAN_SEND_OPV;
- if(IsOverride(source_p))
- return CAN_SEND_NONOP;
-
if(chptr->mode.mode & MODE_MODERATED)
return CAN_SEND_NO;
return CAN_SEND_NONOP;
}
+/*
+ * flood_attack_channel
+ * inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
+ * says NOTICE must not auto reply
+ * - pointer to source Client
+ * - pointer to target channel
+ * output - 1 if target is under flood attack
+ * side effects - check for flood attack on target chptr
+ */
+int
+flood_attack_channel(int p_or_n, struct Client *source_p, struct Channel *chptr, char *chname)
+{
+ int delta;
+
+ if(GlobalSetOptions.floodcount && MyClient(source_p) && (!IsOper(source_p) || !ConfigFileEntry.true_no_oper_flood))
+ {
+ if((chptr->first_received_message_time + 1) < rb_current_time())
+ {
+ delta = rb_current_time() - chptr->first_received_message_time;
+ chptr->received_number_of_privmsgs -= delta;
+ chptr->first_received_message_time = rb_current_time();
+ if(chptr->received_number_of_privmsgs <= 0)
+ {
+ chptr->received_number_of_privmsgs = 0;
+ chptr->flood_noticed = 0;
+ }
+ }
+
+ if((chptr->received_number_of_privmsgs >= GlobalSetOptions.floodcount)
+ || chptr->flood_noticed)
+ {
+ if(chptr->flood_noticed == 0)
+ {
+ sendto_realops_snomask(SNO_BOTS, *chptr->chname == '&' ? L_ALL : L_NETWIDE,
+ "Possible Flooder %s[%s@%s] on %s target: %s",
+ source_p->name, source_p->username,
+ source_p->orighost,
+ source_p->servptr->name, chptr->chname);
+ chptr->flood_noticed = 1;
+
+ /* Add a bit of penalty */
+ chptr->received_number_of_privmsgs += 2;
+ }
+ if(MyClient(source_p) && (p_or_n != 1))
+ sendto_one(source_p,
+ ":%s NOTICE %s :*** Message to %s throttled due to flooding",
+ me.name, source_p->name, chptr->chname);
+ return 1;
+ }
+ else
+ chptr->received_number_of_privmsgs++;
+ }
+
+ return 0;
+}
+
/* find_bannickchange_channel()
* Input: client to check
* Output: channel preventing nick change
{
msptr = ptr->data;
chptr = msptr->chptr;
- if (is_chanop_voiced(msptr))
- continue;
- if (chptr->mode.mode & MODE_NONICK)
+ if (chptr->mode.mode & MODE_NONICK && (!ConfigChannel.exempt_cmode_N || !is_any_op(msptr)))
return chptr;
}
return NULL;
*pbuf = '\0';
for (i = 0; i < 256; i++)
+ {
+ if(chmode_table[i].set_func == chm_hidden && !IsOper(client_p) && IsClient(client_p))
+ continue;
if(chptr->mode.mode & chmode_flags[i])
*mbuf++ = i;
+ }
if(chptr->mode.limit)
{
}
}
+void
+resv_chan_forcepart(const char *name, const char *reason, int temp_time)
+{
+ rb_dlink_node *ptr;
+ rb_dlink_node *next_ptr;
+ struct Channel *chptr;
+ struct membership *msptr;
+ struct Client *target_p;
+
+ if(!ConfigChannel.resv_forcepart)
+ return;
+
+ /* for each user on our server in the channel list
+ * send them a PART, and notify opers.
+ */
+ chptr = find_channel(name);
+ if(chptr != NULL)
+ {
+ RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->locmembers.head)
+ {
+ msptr = ptr->data;
+ target_p = msptr->client_p;
+
+ if(IsExemptResv(target_p))
+ continue;
+
+ sendto_server(target_p, chptr, CAP_TS6, NOCAPS,
+ ":%s PART %s", target_p->id, chptr->chname);
+
+ sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s :%s",
+ target_p->name, target_p->username,
+ target_p->host, chptr->chname, target_p->name);
+
+ remove_user_from_channel(msptr);
+
+ /* notify opers & user they were removed from the channel */
+ sendto_realops_snomask(SNO_GENERAL, L_ALL,
+ "Forced PART for %s!%s@%s from %s (%s)",
+ target_p->name, target_p->username,
+ target_p->host, name, reason);
+
+ if(temp_time > 0)
+ sendto_one_notice(target_p, ":*** Channel %s is temporarily unavailable on this server.",
+ name);
+ else
+ sendto_one_notice(target_p, ":*** Channel %s is no longer available on this server.",
+ name);
+ }
+ }
+}
+
/* Check what we will forward to, without sending any notices to the user
* -- jilles
*/
}
/* check it begins with # or &, and local chans are disabled */
- else if(!IsChannelName(name))
+ else if(!IsChannelName(name) ||
+ ( !ConfigChannel.use_local_channels && name[0] == '&'))
{
sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
form_str(ERR_NOSUCHCHANNEL), name);
continue;
}
- flags = CHFL_CHANOP;
+ if(ConfigChannel.admin_on_channel_create && ConfigChannel.use_admin)
+ flags = CHFL_ADMIN | CHFL_CHANOP;
+ else
+ flags = CHFL_CHANOP;
}
if((rb_dlink_list_length(&source_p->user->channel) >=
/* can_join checks for +i key, bans etc */
if((i = can_join(source_p, chptr, key)))
{
- if ((i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_INVITEONLYCHAN && i != ERR_CHANNELISFULL) ||
+ if(IsOverride(source_p))
+ {
+ sendto_wallops_flags(UMODE_WALLOP, &me,
+ "%s is overriding JOIN to [%s]",
+ get_oper_name(source_p), chptr->chname);
+ sendto_server(NULL, chptr, NOCAPS, NOCAPS,
+ ":%s WALLOPS :%s is overriding JOIN to [%s]",
+ me.name, get_oper_name(source_p), chptr->chname);
+ }
+ else if ((i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_INVITEONLYCHAN && i != ERR_CHANNELISFULL) ||
(!ConfigChannel.use_forward || (chptr = check_forward(source_p, chptr, key)) == NULL))
{
/* might be wrong, but is there any other better location for such?
continue;
}
-
- sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr->chname);
+ else
+ sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr->chname);
}
if(flags == 0 &&
return;
}
+
+/*
+ * channel_metadata_add
+ *
+ * inputs - pointer to channel struct
+ * - name of metadata item you wish to add
+ * - value of metadata item
+ * - 1 if metadata should be propegated, 0 if not
+ * output - none
+ * side effects - metadata is added to the channel in question
+ * - metadata is propegated if propegate is set.
+ */
+struct Metadata *
+channel_metadata_add(struct Channel *target, const char *name, const char *value, int propegate)
+{
+ struct Metadata *md;
+
+ md = rb_malloc(sizeof(struct Metadata));
+ md->name = rb_strdup(name);
+ md->value = rb_strdup(value);
+
+ irc_dictionary_add(target->metadata, md->name, md);
+
+ if(propegate)
+ sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA ADD %s %s :%s",
+ target->chname, name, value);
+
+ return md;
+}
+
+/*
+ * channel_metadata_time_add
+ *
+ * inputs - pointer to channel struct
+ * - name of metadata item you wish to add
+ * - time_t you wish to add
+ * - value you wish to add
+ * output - none
+ * side effects - metadata is added to the channel in question
+ */
+struct Metadata *
+channel_metadata_time_add(struct Channel *target, const char *name, time_t timevalue, const char *value)
+{
+ struct Metadata *md;
+
+ md = rb_malloc(sizeof(struct Metadata));
+ md->name = rb_strdup(name);
+ md->value = rb_strdup(value);
+ md->timevalue = timevalue;
+
+ irc_dictionary_add(target->metadata, md->name, md);
+
+ return md;
+}
+
+/*
+ * channel_metadata_delete
+ *
+ * inputs - pointer to channel struct
+ * - name of metadata item you wish to delete
+ * output - none
+ * side effects - metadata is deleted from the channel in question
+ * - deletion is propegated if propegate is set
+ */
+void
+channel_metadata_delete(struct Channel *target, const char *name, int propegate)
+{
+ struct Metadata *md = channel_metadata_find(target, name);
+
+ if(!md)
+ return;
+
+ irc_dictionary_delete(target->metadata, md->name);
+
+ rb_free(md);
+
+ if(propegate)
+ sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA DELETE %s %s",
+ target->chname, name);
+}
+
+/*
+ * channel_metadata_find
+ *
+ * inputs - pointer to channel struct
+ * - name of metadata item you wish to read
+ * output - the requested metadata, if it exists, elsewise null.
+ * side effects -
+ */
+struct Metadata *
+channel_metadata_find(struct Channel *target, const char *name)
+{
+ if(!target)
+ return NULL;
+
+ if(!target->metadata)
+ return NULL;
+
+ return irc_dictionary_retrieve(target->metadata, name);
+}
+
+/*
+ * channel_metadata_clear
+ *
+ * inputs - pointer to channel struct
+ * output - none
+ * side effects - metadata is cleared from the channel in question
+ */
+void
+channel_metadata_clear(struct Channel *chptr)
+{
+ struct Metadata *md;
+ struct DictionaryIter iter;
+
+ DICTIONARY_FOREACH(md, &iter, chptr->metadata)
+ {
+ channel_metadata_delete(chptr, md->name, 0);
+ }
+}