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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" |
c86edd1d Q |
10 | |
11 | #define PROTECTTIME 60 /* How long you have to renick if you encroach.. */ | |
12 | ||
13 | void csp_handlenick(int hooknum, void *arg); | |
14 | void csp_freenick(int hooknum, void *arg); | |
15 | void csp_timerfunc (void *arg); | |
16 | int csp_doclaimnick(void *source, int cargc, char **cargv); | |
17 | ||
18 | void _init() { | |
19 | registerhook(HOOK_NICK_NEWNICK, csp_handlenick); | |
20 | registerhook(HOOK_NICK_RENAME, csp_handlenick); | |
21 | ||
22 | registerhook(HOOK_NICK_NEWNICK, csp_freenick); | |
23 | registerhook(HOOK_NICK_ACCOUNT, csp_freenick); | |
24 | ||
1ddeaf21 | 25 | chanservaddcommand("claimnick", QCMD_HELPER, 0, csp_doclaimnick, "Reclaims your nickname if it has been stolen.",""); |
c86edd1d Q |
26 | } |
27 | ||
28 | void _fini() { | |
29 | reguser *rup; | |
30 | int i; | |
31 | ||
32 | deregisterhook(HOOK_NICK_NEWNICK, csp_handlenick); | |
33 | deregisterhook(HOOK_NICK_RENAME, csp_handlenick); | |
34 | ||
35 | deregisterhook(HOOK_NICK_NEWNICK, csp_freenick); | |
36 | deregisterhook(HOOK_NICK_ACCOUNT, csp_freenick); | |
37 | ||
38 | chanservremovecommand("claimnick", csp_doclaimnick); | |
39 | deleteallschedules(csp_timerfunc); | |
40 | ||
41 | /* Kill off all fakeusers too */ | |
42 | for (i=0;i<REGUSERHASHSIZE;i++) | |
43 | for (rup=regusernicktable[i];rup;rup=rup->nextbyname) | |
44 | if (rup->fakeuser) { | |
45 | if (getnickbynick(rup->username) == rup->fakeuser) { | |
46 | deregisterlocaluser(rup->fakeuser,NULL); | |
47 | } | |
48 | rup->fakeuser=NULL; | |
49 | } | |
50 | } | |
51 | ||
52 | void csp_handlenick(int hooknum, void *arg) { | |
53 | nick *np=arg; | |
54 | reguser *rup; | |
9cf19945 | 55 | char userhostbuf[USERLEN+HOSTLEN+2]; |
c86edd1d Q |
56 | |
57 | /* Check that it's a protected nick */ | |
58 | if (!(rup=findreguserbynick(np->nick)) || !UIsProtect(rup)) | |
59 | return; | |
60 | ||
61 | /* If we already had a timer running, this means someone renamed off and back. | |
62 | * Clear the old timer. | |
63 | */ | |
64 | if (rup->checkshd) { | |
65 | deleteschedule(rup->checkshd, csp_timerfunc, rup); | |
66 | rup->checkshd=NULL; | |
67 | } | |
68 | ||
69 | /* If they're an oper, or the legal user of the nick, it's OK */ | |
70 | /* Also, don't warn them if they are a fakeuser */ | |
71 | if (getreguserfromnick(np)==rup) { | |
72 | rup->stealcount=0; | |
73 | return; | |
74 | } | |
9cf19945 | 75 | |
76 | if (rup->lastuserhost) { | |
77 | sprintf(userhostbuf,"%s@%s",np->ident,np->host->name->content); | |
78 | if (!ircd_strcmp(userhostbuf, rup->lastuserhost->content)) | |
79 | return; | |
80 | } | |
c86edd1d Q |
81 | |
82 | if (IsOper(np) || homeserver(np->numeric)==mylongnum) | |
83 | return; | |
84 | ||
85 | /* OK, at this stage we've established that: | |
86 | * - This is a protected nick | |
87 | * - The person using it isn't authed as the correct user | |
88 | */ | |
89 | ||
90 | /* Send warning */ | |
91 | chanservstdmessage(np, QM_PROTECTEDNICK, rup->username); | |
92 | ||
93 | /* Schedule checkup */ | |
94 | rup->checkshd=scheduleoneshot(time(NULL)+PROTECTTIME, csp_timerfunc, rup); | |
95 | } | |
96 | ||
97 | void csp_freenick(int hooknum, void *arg) { | |
98 | nick *np=arg; | |
99 | reguser *rup=getreguserfromnick(np); | |
100 | ||
101 | if (!rup || !UIsProtect(rup)) | |
102 | return; | |
103 | ||
104 | if (rup->checkshd) { | |
105 | deleteschedule(rup->checkshd, csp_timerfunc, rup); | |
106 | rup->checkshd=NULL; | |
107 | } | |
108 | ||
109 | rup->stealcount=0; | |
110 | if (rup->fakeuser) { | |
111 | /* Before killing, check the user is valid */ | |
112 | if (getnickbynick(rup->username) == rup->fakeuser) { | |
113 | /* Free up the fakeuser */ | |
114 | deregisterlocaluser(rup->fakeuser, NULL); | |
115 | rup->fakeuser=NULL; | |
116 | chanservstdmessage(np, QM_NICKWASFAKED, rup->username); | |
117 | } | |
118 | } | |
119 | } | |
120 | ||
121 | void csp_timerfunc (void *arg) { | |
122 | reguser *rup=arg; | |
123 | nick *np; | |
124 | ||
125 | rup->checkshd=NULL; | |
126 | ||
127 | /* Check that we still have a user with this name and | |
128 | * that they're not now opered or authed.. */ | |
129 | if (!(np=getnickbynick(rup->username)) || IsOper(np) || (getreguserfromnick(np)==rup)) | |
130 | return; | |
131 | ||
132 | /* KILL! KILL! KILL! */ | |
133 | killuser(chanservnick, np, "Protected nick."); | |
134 | ||
135 | rup->stealcount++; | |
136 | ||
137 | /* If it's been stolen too much, create a fake user.. */ | |
138 | if (rup->stealcount >= 3) { | |
139 | rup->fakeuser=registerlocaluser(rup->username, "reserved", "nick", "Protected nick.", NULL, UMODE_INV, NULL); | |
140 | } | |
141 | } | |
142 | ||
143 | int csp_doclaimnick(void *source, int cargc, char **cargv) { | |
144 | nick *sender=source; | |
145 | reguser *rup=getreguserfromnick(sender); | |
146 | nick *target; | |
147 | ||
148 | if (!rup) | |
149 | return CMD_ERROR; | |
150 | ||
151 | if (!UIsProtect(rup)) { | |
152 | chanservstdmessage(sender, QM_NOTPROTECTED,rup->username); | |
153 | return CMD_ERROR; | |
154 | } | |
155 | ||
156 | if (!(target=getnickbynick(rup->username))) { | |
157 | chanservstdmessage(sender, QM_UNKNOWNUSER, rup->username); | |
158 | return CMD_ERROR; | |
159 | } | |
160 | ||
161 | if (getreguserfromnick(target)==rup) { | |
162 | chanservstdmessage(sender, QM_SAMEAUTH, target->nick, rup->username); | |
163 | return CMD_ERROR; | |
164 | } | |
165 | ||
166 | if (rup->fakeuser==target) { | |
167 | deregisterlocaluser(rup->fakeuser, NULL); | |
168 | rup->fakeuser=NULL; | |
169 | } else { | |
170 | if (!IsOper(target)) | |
171 | killuser(chanservnick, target, "Protected nick."); | |
172 | } | |
173 | ||
174 | chanservstdmessage(sender, QM_DONE); | |
175 | return CMD_OK; | |
176 | } |