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1 | #include <string.h> | |
2 | #include <stdio.h> | |
3 | #include "../core/hooks.h" | |
4 | #include "../control/control.h" | |
5 | #include "../irc/irc.h" | |
6 | #include "../lib/irc_string.h" | |
7 | #include "../lib/version.h" | |
8 | #include "whowas.h" | |
9 | ||
10 | MODULE_VERSION(""); | |
11 | ||
12 | whowas whowasrecs[WW_MAXENTRIES]; | |
13 | int whowasoffset = 0; | |
14 | ||
15 | whowas *whowas_fromnick(nick *np, int standalone) { | |
16 | whowas *ww; | |
17 | nick *wnp; | |
18 | struct irc_in_addr ipaddress_canonical; | |
19 | ||
20 | /* Create a new record. */ | |
21 | if (standalone) | |
22 | ww = malloc(sizeof(whowas)); | |
23 | else { | |
24 | ww = &whowasrecs[whowasoffset]; | |
25 | whowas_clean(ww); | |
26 | whowasoffset = (whowasoffset + 1) % WW_MAXENTRIES; | |
27 | } | |
28 | ||
29 | memset(ww, 0, sizeof(whowas)); | |
30 | ||
31 | wnp = &ww->nick; | |
32 | memset(wnp, 0, sizeof(nick)); | |
33 | strncpy(wnp->nick, np->nick, NICKLEN + 1); | |
34 | wnp->numeric = np->numeric; | |
35 | strncpy(wnp->ident, np->ident, USERLEN + 1); | |
36 | ||
37 | wnp->host = newhost(); | |
38 | memset(wnp->host, 0, sizeof(host)); | |
39 | wnp->host->name = getsstring(np->host->name->content, HOSTLEN); | |
40 | ||
41 | wnp->realname = newrealname(); | |
42 | memset(wnp->realname, 0, sizeof(realname)); | |
43 | wnp->realname->name = getsstring(np->realname->name->content, REALLEN); | |
44 | wnp->shident = np->shident ? getsstring(np->shident->content, 512) : NULL; | |
45 | wnp->sethost = np->sethost ? getsstring(np->sethost->content, 512) : NULL; | |
46 | wnp->opername = np->opername ? getsstring(np->opername->content, 512) : NULL; | |
47 | wnp->umodes = np->umodes; | |
48 | if (np->auth) { | |
49 | wnp->auth = newauthname(); | |
50 | memset(wnp->auth, 0, sizeof(authname)); | |
51 | wnp->auth->userid = np->auth->userid; | |
52 | strncpy(wnp->auth->name, np->auth->name, ACCOUNTLEN + 1); | |
53 | wnp->authname = wnp->auth->name; | |
54 | } | |
55 | wnp->timestamp = np->timestamp; | |
56 | wnp->accountts = np->accountts; | |
57 | wnp->away = np->away ? getsstring(np->away->content, 512) : NULL; | |
58 | ||
59 | memcpy(&wnp->ipaddress, &np->ipaddress, sizeof(struct irc_in_addr)); | |
60 | ||
61 | ip_canonicalize_tunnel(&ipaddress_canonical, &np->ipaddress); | |
62 | wnp->ipnode = refnode(iptree, &ipaddress_canonical, PATRICIA_MAXBITS); | |
63 | ||
64 | wnp->next = (nick *)ww; /* Yuck. */ | |
65 | ||
66 | ww->timestamp = getnettime(); | |
67 | ||
68 | return ww; | |
69 | } | |
70 | ||
71 | void whowas_clean(whowas *ww) { | |
72 | nick *np; | |
73 | ||
74 | if (!ww || ww->type == WHOWAS_UNUSED) | |
75 | return; | |
76 | ||
77 | np = &ww->nick; | |
78 | freesstring(np->host->name); | |
79 | freehost(np->host); | |
80 | freesstring(np->realname->name); | |
81 | freerealname(np->realname); | |
82 | freesstring(np->shident); | |
83 | freesstring(np->sethost); | |
84 | freesstring(np->opername); | |
85 | freeauthname(np->auth); | |
86 | freesstring(np->away); | |
87 | ||
88 | freesstring(ww->reason); | |
89 | ww->type = WHOWAS_UNUSED; | |
90 | } | |
91 | ||
92 | void whowas_free(whowas *ww) { | |
93 | whowas_clean(ww); | |
94 | free(ww); | |
95 | } | |
96 | ||
97 | static void whowas_handlequitorkill(int hooknum, void *arg) { | |
98 | void **args = arg; | |
99 | nick *np = args[0]; | |
100 | char *reason = args[1]; | |
101 | char *rreason; | |
102 | char resbuf[512]; | |
103 | whowas *ww; | |
104 | ||
105 | /* Create a new record. */ | |
106 | ww = whowas_fromnick(np, 0); | |
107 | ||
108 | if (hooknum == HOOK_NICK_KILL) { | |
109 | if ((rreason = strchr(reason, ' '))) { | |
110 | sprintf(resbuf, "Killed%s", rreason); | |
111 | reason = resbuf; | |
112 | } | |
113 | ||
114 | ww->type = WHOWAS_KILL; | |
115 | } else { | |
116 | if (strncmp(reason, "G-lined", 7) == 0) | |
117 | ww->type = WHOWAS_KILL; | |
118 | else | |
119 | ww->type = WHOWAS_QUIT; | |
120 | } | |
121 | ||
122 | ww->reason = getsstring(reason, WW_REASONLEN); | |
123 | } | |
124 | ||
125 | static void whowas_handlerename(int hooknum, void *arg) { | |
126 | void **args = arg; | |
127 | nick *np = args[0]; | |
128 | char *oldnick = args[1]; | |
129 | whowas *ww; | |
130 | nick *wnp; | |
131 | ||
132 | ww = whowas_fromnick(np, 0); | |
133 | ww->type = WHOWAS_RENAME; | |
134 | wnp = &ww->nick; | |
135 | ww->newnick = getsstring(wnp->nick, NICKLEN); | |
136 | strncpy(wnp->nick, oldnick, NICKLEN + 1); | |
137 | } | |
138 | ||
139 | whowas *whowas_chase(const char *target, int maxage) { | |
140 | whowas *ww; | |
141 | nick *wnp; | |
142 | time_t now; | |
143 | int i; | |
144 | ||
145 | now = getnettime(); | |
146 | ||
147 | for (i = whowasoffset + WW_MAXENTRIES - 1; i >= whowasoffset; i--) { | |
148 | ww = &whowasrecs[i % WW_MAXENTRIES]; | |
149 | ||
150 | if (ww->type == WHOWAS_UNUSED) | |
151 | continue; | |
152 | ||
153 | wnp = &ww->nick; | |
154 | ||
155 | if (ww->timestamp < now - maxage) | |
156 | break; /* records are in timestamp order, we're done */ | |
157 | ||
158 | if (ircd_strcmp(wnp->nick, target) == 0) | |
159 | return ww; | |
160 | } | |
161 | ||
162 | return NULL; | |
163 | } | |
164 | ||
165 | const char *whowas_format(whowas *ww) { | |
166 | nick *np = &ww->nick; | |
167 | static char buf[512]; | |
168 | char timebuf[30]; | |
169 | char hostmask[512]; | |
170 | ||
171 | snprintf(hostmask, sizeof(hostmask), "%s!%s@%s%s%s [%s] (%s)", | |
172 | np->nick, np->ident, np->host->name->content, | |
173 | np->auth ? "/" : "", np->auth ? np->authname : "", | |
174 | IPtostr(np->p_ipaddr), | |
175 | printflags(np->umodes, umodeflags)); | |
176 | strftime(timebuf, sizeof(timebuf), "%d/%m/%y %H:%M:%S", localtime(&(ww->timestamp))); | |
177 | ||
178 | if (ww->type == WHOWAS_RENAME) | |
179 | snprintf(buf, sizeof(buf), "[%s] NICK %s r(%s) -> %s", timebuf, hostmask, np->realname->name->content, ww->newnick->content); | |
180 | else | |
181 | snprintf(buf, sizeof(buf), "[%s] %s %s r(%s): %s", timebuf, (ww->type == WHOWAS_QUIT) ? "QUIT" : "KILL", hostmask, np->realname->name->content, ww->reason->content); | |
182 | ||
183 | return buf; | |
184 | } | |
185 | ||
186 | unsigned int nextwhowasmarker() { | |
187 | whowas *ww; | |
188 | int i; | |
189 | static unsigned int whowasmarker=0; | |
190 | ||
191 | whowasmarker++; | |
192 | ||
193 | if (!whowasmarker) { | |
194 | /* If we wrapped to zero, zap the marker on all records */ | |
195 | for (i = 0; i < WW_MAXENTRIES; i++) { | |
196 | ww = &whowasrecs[i % WW_MAXENTRIES]; | |
197 | ww->marker=0; | |
198 | } | |
199 | ||
200 | whowasmarker++; | |
201 | } | |
202 | ||
203 | return whowasmarker; | |
204 | } | |
205 | ||
206 | void _init(void) { | |
207 | registerhook(HOOK_NICK_QUIT, whowas_handlequitorkill); | |
208 | registerhook(HOOK_NICK_KILL, whowas_handlequitorkill); | |
209 | registerhook(HOOK_NICK_RENAME, whowas_handlerename); | |
210 | } | |
211 | ||
212 | void _fini(void) { | |
213 | int i; | |
214 | whowas *ww; | |
215 | ||
216 | deregisterhook(HOOK_NICK_QUIT, whowas_handlequitorkill); | |
217 | deregisterhook(HOOK_NICK_KILL, whowas_handlequitorkill); | |
218 | deregisterhook(HOOK_NICK_RENAME, whowas_handlerename); | |
219 | ||
220 | for (i = 0; i < WW_MAXENTRIES; i++) { | |
221 | ww = &whowasrecs[i % WW_MAXENTRIES]; | |
222 | whowas_clean(ww); | |
223 | } | |
224 | } |