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1 | /* | |
2 | * ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd). | |
3 | * monitor.c - Code for server-side notify lists | |
4 | * | |
5 | * Copyright (C) 2005 Lee Hardy <lee -at- leeh.co.uk> | |
6 | * Copyright (C) 2005 ircd-ratbox development team | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions are | |
10 | * met: | |
11 | * | |
12 | * 1.Redistributions of source code must retain the above copyright notice, | |
13 | * this list of conditions and the following disclaimer. | |
14 | * 2.Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in the | |
16 | * documentation and/or other materials provided with the distribution. | |
17 | * 3.The name of the author may not be used to endorse or promote products | |
18 | * derived from this software without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
21 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
23 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
24 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
26 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
28 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
30 | * POSSIBILITY OF SUCH DAMAGE. | |
31 | * | |
32 | * $Id: monitor.c 3520 2007-06-30 22:15:35Z jilles $ | |
33 | */ | |
34 | #include "stdinc.h" | |
35 | #include "client.h" | |
36 | #include "monitor.h" | |
37 | #include "hash.h" | |
38 | #include "numeric.h" | |
39 | #include "send.h" | |
40 | #include "irc_radixtree.h" | |
41 | ||
42 | static struct irc_radixtree *monitor_tree; | |
43 | ||
44 | void | |
45 | init_monitor(void) | |
46 | { | |
47 | monitor_tree = irc_radixtree_create("monitor lists", irc_radixtree_irccasecanon); | |
48 | } | |
49 | ||
50 | struct monitor * | |
51 | find_monitor(const char *name, int add) | |
52 | { | |
53 | struct monitor *monptr; | |
54 | ||
55 | monptr = irc_radixtree_retrieve(monitor_tree, name); | |
56 | if (monptr != NULL) | |
57 | return monptr; | |
58 | ||
59 | if(add) | |
60 | { | |
61 | monptr = rb_malloc(sizeof(*monptr)); | |
62 | rb_strlcpy(monptr->name, name, sizeof(monptr->name)); | |
63 | irc_radixtree_add(monitor_tree, monptr->name, monptr); | |
64 | ||
65 | return monptr; | |
66 | } | |
67 | ||
68 | return NULL; | |
69 | } | |
70 | ||
71 | void | |
72 | free_monitor(struct monitor *monptr) | |
73 | { | |
74 | if (rb_dlink_list_length(&monptr->users) > 0) | |
75 | return; | |
76 | ||
77 | irc_radixtree_delete(monitor_tree, monptr->name); | |
78 | rb_free(monptr); | |
79 | } | |
80 | ||
81 | /* monitor_signon() | |
82 | * | |
83 | * inputs - client who has just connected | |
84 | * outputs - | |
85 | * side effects - notifies any clients monitoring this nickname that it has | |
86 | * connected to the network | |
87 | */ | |
88 | void | |
89 | monitor_signon(struct Client *client_p) | |
90 | { | |
91 | char buf[USERHOST_REPLYLEN]; | |
92 | struct monitor *monptr = find_monitor(client_p->name, 0); | |
93 | ||
94 | /* noones watching this nick */ | |
95 | if(monptr == NULL) | |
96 | return; | |
97 | ||
98 | rb_snprintf(buf, sizeof(buf), "%s!%s@%s", client_p->name, client_p->username, client_p->host); | |
99 | ||
100 | sendto_monitor(monptr, form_str(RPL_MONONLINE), me.name, "*", buf); | |
101 | } | |
102 | ||
103 | /* monitor_signoff() | |
104 | * | |
105 | * inputs - client who is exiting | |
106 | * outputs - | |
107 | * side effects - notifies any clients monitoring this nickname that it has | |
108 | * left the network | |
109 | */ | |
110 | void | |
111 | monitor_signoff(struct Client *client_p) | |
112 | { | |
113 | struct monitor *monptr = find_monitor(client_p->name, 0); | |
114 | ||
115 | /* noones watching this nick */ | |
116 | if(monptr == NULL) | |
117 | return; | |
118 | ||
119 | sendto_monitor(monptr, form_str(RPL_MONOFFLINE), me.name, "*", | |
120 | client_p->name); | |
121 | } | |
122 | ||
123 | void | |
124 | clear_monitor(struct Client *client_p) | |
125 | { | |
126 | struct monitor *monptr; | |
127 | rb_dlink_node *ptr, *next_ptr; | |
128 | ||
129 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->monitor_list.head) | |
130 | { | |
131 | monptr = ptr->data; | |
132 | ||
133 | rb_dlinkFindDestroy(client_p, &monptr->users); | |
134 | rb_free_rb_dlink_node(ptr); | |
135 | ||
136 | free_monitor(monptr); | |
137 | } | |
138 | ||
139 | client_p->localClient->monitor_list.head = client_p->localClient->monitor_list.tail = NULL; | |
140 | client_p->localClient->monitor_list.length = 0; | |
141 | } |