2 * oper-override for charybdis.
4 * adds usermode +p and has a timer event that is iterated over to disable
5 * usermode +p after a while...
7 * you need to have oper:override permission on the opers you want to be
8 * able to use this extension.
22 #include "privilege.h"
23 #include "s_newconf.h"
25 static const char override_desc
[] =
26 "Adds user mode +p, an operator-only user mode that grants temporary privileges to override anything";
28 static void check_umode_change(void *data
);
29 static void hack_channel_access(void *data
);
30 static void hack_can_join(void *data
);
31 static void hack_can_kick(void *data
);
32 static void hack_can_send(void *data
);
33 static void handle_client_exit(void *data
);
35 mapi_hfn_list_av1 override_hfnlist
[] = {
36 { "umode_changed", (hookfn
) check_umode_change
},
37 { "get_channel_access", (hookfn
) hack_channel_access
},
38 { "can_join", (hookfn
) hack_can_join
},
39 { "can_kick", (hookfn
) hack_can_kick
},
40 { "can_send", (hookfn
) hack_can_send
},
41 { "client_exit", (hookfn
) handle_client_exit
},
45 #define CHFL_OVERRIDE 0x0004
46 #define IsOperOverride(x) (HasPrivilege((x), "oper:override"))
48 struct OverrideSession
{
51 struct Client
*client
;
55 rb_dlink_list overriding_opers
= { NULL
, NULL
, 0 };
58 update_session_deadline(struct Client
*source_p
, struct OverrideSession
*session_p
)
60 if (session_p
== NULL
)
64 RB_DLINK_FOREACH(n
, overriding_opers
.head
)
66 struct OverrideSession
*s
= n
->data
;
68 if (s
->client
== source_p
)
76 if (session_p
== NULL
)
78 session_p
= rb_malloc(sizeof(struct OverrideSession
));
79 session_p
->client
= source_p
;
82 session_p
->deadline
= rb_current_time() + 1800;
84 rb_dlinkDelete(&session_p
->node
, &overriding_opers
);
85 rb_dlinkAdd(session_p
, &session_p
->node
, &overriding_opers
);
89 expire_override_deadlines(void *unused
)
91 rb_dlink_node
*n
, *tn
;
93 RB_DLINK_FOREACH_SAFE(n
, tn
, overriding_opers
.head
)
95 struct OverrideSession
*session_p
= n
->data
;
97 if (session_p
->deadline
> rb_current_time())
99 else if (session_p
->deadline
< rb_current_time())
101 const char *parv
[4] = {session_p
->client
->name
, session_p
->client
->name
, "-p", NULL
};
102 user_mode(session_p
->client
, session_p
->client
, 3, parv
);
108 check_umode_change(void *vdata
)
110 hook_data_umode_changed
*data
= (hook_data_umode_changed
*)vdata
;
111 struct Client
*source_p
= data
->client
;
113 if (!MyClient(source_p
))
116 if (data
->oldumodes
& UMODE_OPER
&& !IsOper(source_p
))
117 source_p
->umodes
&= ~user_modes
['p'];
119 /* didn't change +p umode, we don't need to do anything */
120 if (!((data
->oldumodes
^ source_p
->umodes
) & user_modes
['p']))
123 if (source_p
->umodes
& user_modes
['p'])
125 if (!IsOperOverride(source_p
))
127 sendto_one_notice(source_p
, ":*** You need oper:override privilege for +p");
128 source_p
->umodes
&= ~user_modes
['p'];
132 update_session_deadline(source_p
, NULL
);
134 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "%s has enabled oper-override (+p)",
135 get_oper_name(source_p
));
137 else if (!(source_p
->umodes
& user_modes
['p']))
139 rb_dlink_node
*n
, *tn
;
141 RB_DLINK_FOREACH_SAFE(n
, tn
, overriding_opers
.head
)
143 struct OverrideSession
*session_p
= n
->data
;
145 if (session_p
->client
!= source_p
)
148 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "%s has disabled oper-override (+p)",
149 get_oper_name(session_p
->client
));
151 rb_dlinkDelete(n
, &overriding_opers
);
158 hack_channel_access(void *vdata
)
160 hook_data_channel_approval
*data
= (hook_data_channel_approval
*) vdata
;
162 if (data
->dir
== MODE_QUERY
)
165 if (data
->approved
== CHFL_CHANOP
)
168 if (data
->client
->umodes
& user_modes
['p'])
170 update_session_deadline(data
->client
, NULL
);
171 data
->approved
= CHFL_OVERRIDE
;
173 /* we only want to report modehacks, which are always non-NULL */
175 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "%s is using oper-override on %s (modehacking: %s)",
176 get_oper_name(data
->client
), data
->chptr
->chname
, data
->modestr
);
181 hack_can_join(void *vdata
)
183 hook_data_channel
*data
= (hook_data_channel
*) vdata
;
185 if (data
->approved
== 0)
188 if (data
->client
->umodes
& user_modes
['p'])
190 update_session_deadline(data
->client
, NULL
);
193 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "%s is using oper-override on %s (banwalking)",
194 get_oper_name(data
->client
), data
->chptr
->chname
);
199 hack_can_kick(void *vdata
)
201 hook_data_channel_approval
*data
= (hook_data_channel_approval
*) vdata
;
204 alevel
= get_channel_access(data
->client
, data
->chptr
, data
->msptr
, data
->dir
, NULL
);
205 if (alevel
!= CHFL_OVERRIDE
)
208 if (data
->client
->umodes
& user_modes
['p'])
210 update_session_deadline(data
->client
, NULL
);
211 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "%s is using oper-override on %s (KICK %s)",
212 get_oper_name(data
->client
), data
->chptr
->chname
, data
->target
->name
);
217 hack_can_send(void *vdata
)
219 hook_data_channel_approval
*data
= (hook_data_channel_approval
*) vdata
;
221 if (data
->dir
== MODE_QUERY
)
224 if (data
->approved
== CAN_SEND_NONOP
|| data
->approved
== CAN_SEND_OPV
)
227 if (data
->client
->umodes
& user_modes
['p'])
229 data
->approved
= CAN_SEND_NONOP
;
231 if (MyClient(data
->client
))
233 update_session_deadline(data
->client
, NULL
);
234 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "%s is using oper-override on %s (forcing message)",
235 get_oper_name(data
->client
), data
->chptr
->chname
);
241 handle_client_exit(void *vdata
)
243 hook_data_client_exit
*data
= (hook_data_client_exit
*) vdata
;
244 rb_dlink_node
*n
, *tn
;
245 struct Client
*source_p
= data
->target
;
247 RB_DLINK_FOREACH_SAFE(n
, tn
, overriding_opers
.head
)
249 struct OverrideSession
*session_p
= n
->data
;
251 if (session_p
->client
!= source_p
)
254 rb_dlinkDelete(n
, &overriding_opers
);
259 struct ev_entry
*expire_override_deadlines_ev
= NULL
;
264 /* add the usermode to the available slot */
265 user_modes
['p'] = find_umode_slot();
266 construct_umodebuf();
268 expire_override_deadlines_ev
= rb_event_add("expire_override_deadlines", expire_override_deadlines
, NULL
, 60);
276 /* disable the umode and remove it from the available list */
278 construct_umodebuf();
280 rb_event_delete(expire_override_deadlines_ev
);
283 DECLARE_MODULE_AV2(override
, _modinit
, _moddeinit
, NULL
, NULL
,
284 override_hfnlist
, NULL
, NULL
, override_desc
);