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/*
* ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
* monitor.c - Code for server-side notify lists
*
* Copyright (C) 2005 Lee Hardy <lee -at- leeh.co.uk>
* Copyright (C) 2005 ircd-ratbox development team
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1.Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2.Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3.The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "stdinc.h"
#include "client.h"
#include "monitor.h"
#include "hash.h"
#include "numeric.h"
#include "send.h"
#include "rb_radixtree.h"
static rb_radixtree *monitor_tree;
void
init_monitor(void)
{
monitor_tree = rb_radixtree_create("monitor lists", irccasecanon);
}
struct monitor *
find_monitor(const char *name, int add)
{
struct monitor *monptr;
monptr = rb_radixtree_retrieve(monitor_tree, name);
if (monptr != NULL)
return monptr;
if(add)
{
monptr = rb_malloc(sizeof(*monptr));
rb_strlcpy(monptr->name, name, sizeof(monptr->name));
rb_radixtree_add(monitor_tree, monptr->name, monptr);
return monptr;
}
return NULL;
}
void
free_monitor(struct monitor *monptr)
{
if (rb_dlink_list_length(&monptr->users) > 0)
return;
rb_radixtree_delete(monitor_tree, monptr->name);
rb_free(monptr);
}
bool
is_monitoring(struct Client *client_p, const char *name)
{
struct monitor *monptr = find_monitor(name, 0);
if (monptr == NULL)
return false;
return rb_dlinkFind(client_p, &monptr->users) != NULL;
}
/* monitor_signon()
*
* inputs - client who has just connected
* outputs -
* side effects - notifies any clients monitoring this nickname that it has
* connected to the network
*/
void
monitor_signon(struct Client *client_p)
{
char buf[USERHOST_REPLYLEN];
struct monitor *monptr = find_monitor(client_p->name, 0);
/* noones watching this nick */
if(monptr == NULL)
return;
snprintf(buf, sizeof(buf), "%s!%s@%s", client_p->name, client_p->username, client_p->host);
sendto_monitor(client_p, monptr, form_str(RPL_MONONLINE), me.name, "*", buf);
}
/* monitor_signoff()
*
* inputs - client who is exiting
* outputs -
* side effects - notifies any clients monitoring this nickname that it has
* left the network
*/
void
monitor_signoff(struct Client *client_p)
{
struct monitor *monptr = find_monitor(client_p->name, 0);
/* noones watching this nick */
if(monptr == NULL)
return;
sendto_monitor(client_p, monptr, form_str(RPL_MONOFFLINE), me.name, "*",
client_p->name);
}
void
clear_monitor(struct Client *client_p)
{
struct monitor *monptr;
rb_dlink_node *ptr, *next_ptr;
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->monitor_list.head)
{
monptr = ptr->data;
rb_dlinkFindDestroy(client_p, &monptr->users);
rb_free_rb_dlink_node(ptr);
free_monitor(monptr);
}
client_p->localClient->monitor_list.head = client_p->localClient->monitor_list.tail = NULL;
client_p->localClient->monitor_list.length = 0;
}
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