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Commit | Line | Data |
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1 | /* | |
2 | * Nick protection system for the chanserv | |
3 | */ | |
4 | ||
5 | #include "chanserv.h" | |
6 | #include "../core/schedule.h" | |
7 | #include "../localuser/localuser.h" | |
8 | ||
9 | ||
10 | #define PROTECTTIME 60 /* How long you have to renick if you encroach.. */ | |
11 | ||
12 | void csp_handlenick(int hooknum, void *arg); | |
13 | void csp_freenick(int hooknum, void *arg); | |
14 | void csp_timerfunc (void *arg); | |
15 | int csp_doclaimnick(void *source, int cargc, char **cargv); | |
16 | ||
17 | void _init() { | |
18 | registerhook(HOOK_NICK_NEWNICK, csp_handlenick); | |
19 | registerhook(HOOK_NICK_RENAME, csp_handlenick); | |
20 | ||
21 | registerhook(HOOK_NICK_NEWNICK, csp_freenick); | |
22 | registerhook(HOOK_NICK_ACCOUNT, csp_freenick); | |
23 | ||
24 | chanservaddcommand("claimnick", QCMD_HELPER, 0, csp_doclaimnick, | |
25 | "Reclaims your nickname if it has been stolen."); | |
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; | |
55 | ||
56 | /* Check that it's a protected nick */ | |
57 | if (!(rup=findreguserbynick(np->nick)) || !UIsProtect(rup)) | |
58 | return; | |
59 | ||
60 | /* If we already had a timer running, this means someone renamed off and back. | |
61 | * Clear the old timer. | |
62 | */ | |
63 | if (rup->checkshd) { | |
64 | deleteschedule(rup->checkshd, csp_timerfunc, rup); | |
65 | rup->checkshd=NULL; | |
66 | } | |
67 | ||
68 | /* If they're an oper, or the legal user of the nick, it's OK */ | |
69 | /* Also, don't warn them if they are a fakeuser */ | |
70 | if (getreguserfromnick(np)==rup) { | |
71 | rup->stealcount=0; | |
72 | return; | |
73 | } | |
74 | ||
75 | if (IsOper(np) || homeserver(np->numeric)==mylongnum) | |
76 | return; | |
77 | ||
78 | /* OK, at this stage we've established that: | |
79 | * - This is a protected nick | |
80 | * - The person using it isn't authed as the correct user | |
81 | */ | |
82 | ||
83 | /* Send warning */ | |
84 | chanservstdmessage(np, QM_PROTECTEDNICK, rup->username); | |
85 | ||
86 | /* Schedule checkup */ | |
87 | rup->checkshd=scheduleoneshot(time(NULL)+PROTECTTIME, csp_timerfunc, rup); | |
88 | } | |
89 | ||
90 | void csp_freenick(int hooknum, void *arg) { | |
91 | nick *np=arg; | |
92 | reguser *rup=getreguserfromnick(np); | |
93 | ||
94 | if (!rup || !UIsProtect(rup)) | |
95 | return; | |
96 | ||
97 | if (rup->checkshd) { | |
98 | deleteschedule(rup->checkshd, csp_timerfunc, rup); | |
99 | rup->checkshd=NULL; | |
100 | } | |
101 | ||
102 | rup->stealcount=0; | |
103 | if (rup->fakeuser) { | |
104 | /* Before killing, check the user is valid */ | |
105 | if (getnickbynick(rup->username) == rup->fakeuser) { | |
106 | /* Free up the fakeuser */ | |
107 | deregisterlocaluser(rup->fakeuser, NULL); | |
108 | rup->fakeuser=NULL; | |
109 | chanservstdmessage(np, QM_NICKWASFAKED, rup->username); | |
110 | } | |
111 | } | |
112 | } | |
113 | ||
114 | void csp_timerfunc (void *arg) { | |
115 | reguser *rup=arg; | |
116 | nick *np; | |
117 | ||
118 | rup->checkshd=NULL; | |
119 | ||
120 | /* Check that we still have a user with this name and | |
121 | * that they're not now opered or authed.. */ | |
122 | if (!(np=getnickbynick(rup->username)) || IsOper(np) || (getreguserfromnick(np)==rup)) | |
123 | return; | |
124 | ||
125 | /* KILL! KILL! KILL! */ | |
126 | killuser(chanservnick, np, "Protected nick."); | |
127 | ||
128 | rup->stealcount++; | |
129 | ||
130 | /* If it's been stolen too much, create a fake user.. */ | |
131 | if (rup->stealcount >= 3) { | |
132 | rup->fakeuser=registerlocaluser(rup->username, "reserved", "nick", "Protected nick.", NULL, UMODE_INV, NULL); | |
133 | } | |
134 | } | |
135 | ||
136 | int csp_doclaimnick(void *source, int cargc, char **cargv) { | |
137 | nick *sender=source; | |
138 | reguser *rup=getreguserfromnick(sender); | |
139 | nick *target; | |
140 | ||
141 | if (!rup) | |
142 | return CMD_ERROR; | |
143 | ||
144 | if (!UIsProtect(rup)) { | |
145 | chanservstdmessage(sender, QM_NOTPROTECTED,rup->username); | |
146 | return CMD_ERROR; | |
147 | } | |
148 | ||
149 | if (!(target=getnickbynick(rup->username))) { | |
150 | chanservstdmessage(sender, QM_UNKNOWNUSER, rup->username); | |
151 | return CMD_ERROR; | |
152 | } | |
153 | ||
154 | if (getreguserfromnick(target)==rup) { | |
155 | chanservstdmessage(sender, QM_SAMEAUTH, target->nick, rup->username); | |
156 | return CMD_ERROR; | |
157 | } | |
158 | ||
159 | if (rup->fakeuser==target) { | |
160 | deregisterlocaluser(rup->fakeuser, NULL); | |
161 | rup->fakeuser=NULL; | |
162 | } else { | |
163 | if (!IsOper(target)) | |
164 | killuser(chanservnick, target, "Protected nick."); | |
165 | } | |
166 | ||
167 | chanservstdmessage(sender, QM_DONE); | |
168 | return CMD_OK; | |
169 | } |