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Commit | Line | Data |
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c86edd1d Q |
1 | /* |
2 | * Nick protection system for the chanserv | |
3 | */ | |
4 | ||
df196dd2 | 5 | #include <stdio.h> |
c86edd1d Q |
6 | #include "chanserv.h" |
7 | #include "../core/schedule.h" | |
8 | #include "../localuser/localuser.h" | |
e9f04cff | 9 | #include "../lib/irc_string.h" |
7f32dbdf P |
10 | #include "../lib/version.h" |
11 | ||
12 | MODULE_VERSION(QVERSION) | |
c86edd1d Q |
13 | |
14 | #define PROTECTTIME 60 /* How long you have to renick if you encroach.. */ | |
15 | ||
16 | void csp_handlenick(int hooknum, void *arg); | |
2fdef282 | 17 | void csp_handlerename(int hooknum, void *arg); |
c86edd1d Q |
18 | void csp_freenick(int hooknum, void *arg); |
19 | void csp_timerfunc (void *arg); | |
20 | int csp_doclaimnick(void *source, int cargc, char **cargv); | |
21 | ||
22 | void _init() { | |
23 | registerhook(HOOK_NICK_NEWNICK, csp_handlenick); | |
2fdef282 | 24 | registerhook(HOOK_NICK_RENAME, csp_handlerename); |
c86edd1d Q |
25 | |
26 | registerhook(HOOK_NICK_NEWNICK, csp_freenick); | |
27 | registerhook(HOOK_NICK_ACCOUNT, csp_freenick); | |
28 | ||
7be5f783 | 29 | chanservaddcommand("claimnick", QCMD_STAFF, 0, csp_doclaimnick, "Reclaims your nickname if it has been stolen.",""); |
c86edd1d Q |
30 | } |
31 | ||
32 | void _fini() { | |
33 | reguser *rup; | |
34 | int i; | |
35 | ||
36 | deregisterhook(HOOK_NICK_NEWNICK, csp_handlenick); | |
2fdef282 | 37 | deregisterhook(HOOK_NICK_RENAME, csp_handlerename); |
c86edd1d Q |
38 | |
39 | deregisterhook(HOOK_NICK_NEWNICK, csp_freenick); | |
40 | deregisterhook(HOOK_NICK_ACCOUNT, csp_freenick); | |
41 | ||
42 | chanservremovecommand("claimnick", csp_doclaimnick); | |
43 | deleteallschedules(csp_timerfunc); | |
44 | ||
45 | /* Kill off all fakeusers too */ | |
46 | for (i=0;i<REGUSERHASHSIZE;i++) | |
47 | for (rup=regusernicktable[i];rup;rup=rup->nextbyname) | |
48 | if (rup->fakeuser) { | |
49 | if (getnickbynick(rup->username) == rup->fakeuser) { | |
50 | deregisterlocaluser(rup->fakeuser,NULL); | |
51 | } | |
52 | rup->fakeuser=NULL; | |
53 | } | |
54 | } | |
55 | ||
2fdef282 CP |
56 | void csp_handlerename(int hooknum, void *arg) { |
57 | void **harg = (void **)arg; | |
58 | csp_handlenick(hooknum, harg[0]); | |
59 | } | |
60 | ||
c86edd1d Q |
61 | void csp_handlenick(int hooknum, void *arg) { |
62 | nick *np=arg; | |
63 | reguser *rup; | |
9cf19945 | 64 | char userhostbuf[USERLEN+HOSTLEN+2]; |
c86edd1d Q |
65 | |
66 | /* Check that it's a protected nick */ | |
67 | if (!(rup=findreguserbynick(np->nick)) || !UIsProtect(rup)) | |
68 | return; | |
69 | ||
70 | /* If we already had a timer running, this means someone renamed off and back. | |
71 | * Clear the old timer. | |
72 | */ | |
73 | if (rup->checkshd) { | |
74 | deleteschedule(rup->checkshd, csp_timerfunc, rup); | |
75 | rup->checkshd=NULL; | |
76 | } | |
77 | ||
78 | /* If they're an oper, or the legal user of the nick, it's OK */ | |
79 | /* Also, don't warn them if they are a fakeuser */ | |
80 | if (getreguserfromnick(np)==rup) { | |
81 | rup->stealcount=0; | |
82 | return; | |
83 | } | |
9cf19945 | 84 | |
85 | if (rup->lastuserhost) { | |
86 | sprintf(userhostbuf,"%s@%s",np->ident,np->host->name->content); | |
87 | if (!ircd_strcmp(userhostbuf, rup->lastuserhost->content)) | |
88 | return; | |
89 | } | |
c86edd1d Q |
90 | |
91 | if (IsOper(np) || homeserver(np->numeric)==mylongnum) | |
92 | return; | |
93 | ||
94 | /* OK, at this stage we've established that: | |
95 | * - This is a protected nick | |
96 | * - The person using it isn't authed as the correct user | |
97 | */ | |
98 | ||
99 | /* Send warning */ | |
100 | chanservstdmessage(np, QM_PROTECTEDNICK, rup->username); | |
101 | ||
102 | /* Schedule checkup */ | |
103 | rup->checkshd=scheduleoneshot(time(NULL)+PROTECTTIME, csp_timerfunc, rup); | |
104 | } | |
105 | ||
106 | void csp_freenick(int hooknum, void *arg) { | |
107 | nick *np=arg; | |
108 | reguser *rup=getreguserfromnick(np); | |
109 | ||
110 | if (!rup || !UIsProtect(rup)) | |
111 | return; | |
112 | ||
113 | if (rup->checkshd) { | |
114 | deleteschedule(rup->checkshd, csp_timerfunc, rup); | |
115 | rup->checkshd=NULL; | |
116 | } | |
117 | ||
118 | rup->stealcount=0; | |
119 | if (rup->fakeuser) { | |
120 | /* Before killing, check the user is valid */ | |
121 | if (getnickbynick(rup->username) == rup->fakeuser) { | |
122 | /* Free up the fakeuser */ | |
123 | deregisterlocaluser(rup->fakeuser, NULL); | |
124 | rup->fakeuser=NULL; | |
125 | chanservstdmessage(np, QM_NICKWASFAKED, rup->username); | |
126 | } | |
127 | } | |
128 | } | |
129 | ||
130 | void csp_timerfunc (void *arg) { | |
131 | reguser *rup=arg; | |
132 | nick *np; | |
133 | ||
134 | rup->checkshd=NULL; | |
135 | ||
136 | /* Check that we still have a user with this name and | |
137 | * that they're not now opered or authed.. */ | |
138 | if (!(np=getnickbynick(rup->username)) || IsOper(np) || (getreguserfromnick(np)==rup)) | |
139 | return; | |
140 | ||
141 | /* KILL! KILL! KILL! */ | |
142 | killuser(chanservnick, np, "Protected nick."); | |
143 | ||
144 | rup->stealcount++; | |
145 | ||
146 | /* If it's been stolen too much, create a fake user.. */ | |
147 | if (rup->stealcount >= 3) { | |
148 | rup->fakeuser=registerlocaluser(rup->username, "reserved", "nick", "Protected nick.", NULL, UMODE_INV, NULL); | |
149 | } | |
150 | } | |
151 | ||
152 | int csp_doclaimnick(void *source, int cargc, char **cargv) { | |
153 | nick *sender=source; | |
154 | reguser *rup=getreguserfromnick(sender); | |
155 | nick *target; | |
156 | ||
157 | if (!rup) | |
158 | return CMD_ERROR; | |
159 | ||
160 | if (!UIsProtect(rup)) { | |
161 | chanservstdmessage(sender, QM_NOTPROTECTED,rup->username); | |
162 | return CMD_ERROR; | |
163 | } | |
164 | ||
165 | if (!(target=getnickbynick(rup->username))) { | |
166 | chanservstdmessage(sender, QM_UNKNOWNUSER, rup->username); | |
167 | return CMD_ERROR; | |
168 | } | |
169 | ||
170 | if (getreguserfromnick(target)==rup) { | |
171 | chanservstdmessage(sender, QM_SAMEAUTH, target->nick, rup->username); | |
172 | return CMD_ERROR; | |
173 | } | |
174 | ||
175 | if (rup->fakeuser==target) { | |
176 | deregisterlocaluser(rup->fakeuser, NULL); | |
177 | rup->fakeuser=NULL; | |
178 | } else { | |
179 | if (!IsOper(target)) | |
180 | killuser(chanservnick, target, "Protected nick."); | |
181 | } | |
182 | ||
183 | chanservstdmessage(sender, QM_DONE); | |
184 | return CMD_OK; | |
185 | } |