#include "s_newconf.h"
#include "hook.h"
#include "supported.h"
+#include "logger.h"
-static int
-um_callerid_modinit(void)
-{
- user_modes['g'] = find_umode_slot();
- user_modes['G'] = find_umode_slot();
- construct_umodebuf();
+#define IsSetStrictCallerID(c) ((c->umodes & user_modes['g']) == user_modes['g'])
+#define IsSetRelaxedCallerID(c) ((c->umodes & user_modes['G']) == user_modes['G'])
+#define IsSetAnyCallerID(c) (IsSetStrictCallerID(c) || IsSetRelaxedCallerID(c))
+#define IsSetTalkThroughCallerID(c) ((c->umodes & user_modes['M']) == user_modes['M'])
+
+static const char um_callerid_desc[] =
+ "Provides usermodes +g and +G which restrict messages from unauthorized users.";
- add_isupport("CALLERID", isupport_string, "g");
- return 0;
-}
+struct CallerIDOverrideSession {
+ rb_dlink_node node;
+
+ struct Client *client;
+ time_t deadline;
+};
+
+static rb_dlink_list callerid_overriding_opers = { NULL, NULL, 0 };
+struct ev_entry *expire_callerid_override_deadlines_ev = NULL;
static void
-um_callerid_moddeinit(void)
+update_session_deadline(struct Client *source_p)
{
- user_modes['g'] = 0;
- user_modes['G'] = 0;
- construct_umodebuf();
+ struct CallerIDOverrideSession *session_p = NULL;
+ rb_dlink_node *n;
- delete_isupport("CALLERID");
-}
+ RB_DLINK_FOREACH(n, callerid_overriding_opers.head)
+ {
+ struct CallerIDOverrideSession *s = n->data;
-#define IsSetCallerID(c) ((c->umodes & user_modes['g']) == user_modes['g'])
-#define IsSetRelaxedCallerID(c) ((c->umodes & user_modes['G']) == user_modes['G'])
+ if (s->client == source_p)
+ {
+ session_p = s;
+ break;
+ }
+ }
-static const char um_callerid_desc[] =
- "Provides usermode +g which restricts messages from unauthorized users.";
+ if (session_p != NULL)
+ {
+ rb_dlinkDelete(&session_p->node, &callerid_overriding_opers);
+ }
+ else
+ {
+ session_p = rb_malloc(sizeof(struct CallerIDOverrideSession));
+ session_p->client = source_p;
+ }
-static bool
-has_common_channel(struct Client *source_p, struct Client *target_p)
+ session_p->deadline = rb_current_time() + 1800;
+
+ rb_dlinkAddTail(session_p, &session_p->node, &callerid_overriding_opers);
+}
+
+static void
+expire_callerid_override_deadlines(void *unused)
{
- rb_dlink_node *ptr;
+ rb_dlink_node *n, *tn;
- RB_DLINK_FOREACH(ptr, source_p->user->channel.head)
+ RB_DLINK_FOREACH_SAFE(n, tn, callerid_overriding_opers.head)
{
- struct membership *msptr = ptr->data;
- if (IsMember(target_p, msptr->chptr))
- return msptr->chptr;
- }
+ struct CallerIDOverrideSession *session_p = n->data;
- return NULL;
+ if (session_p->deadline >= rb_current_time())
+ {
+ break;
+ }
+ else
+ {
+ const char *parv[4] = {session_p->client->name, session_p->client->name, "-M", NULL};
+ user_mode(session_p->client, session_p->client, 3, parv);
+ }
+ }
}
static bool
if (!MyClient(target_p))
return true;
- if (!IsSetCallerID(target_p))
+ if (!IsSetAnyCallerID(target_p))
return true;
- if (IsSetRelaxedCallerID(target_p) && has_common_channel(source_p, target_p))
+ if (!IsPerson(source_p))
return true;
- if (IsServer(source_p))
+ if (IsSetRelaxedCallerID(target_p) &&
+ !IsSetStrictCallerID(target_p) &&
+ has_common_channel(source_p, target_p))
return true;
/* XXX: controversial? allow opers to send through +g */
- if (IsOper(source_p))
+ if (IsSetTalkThroughCallerID(source_p) || MayHavePrivilege(source_p, "oper:always_message"))
return true;
if (accept_message(source_p, target_p))
return;
sendto_one_numeric(source_p, ERR_TARGUMODEG, form_str(ERR_TARGUMODEG),
- target_p->name);
+ target_p->name, IsSetStrictCallerID(target_p) ? "+g" : "+G");
if ((target_p->localClient->last_caller_id_time + ConfigFileEntry.caller_id_wait) < rb_current_time())
{
sendto_one(target_p, form_str(RPL_UMODEGMSG),
me.name, target_p->name, source_p->name,
- source_p->username, source_p->host);
+ source_p->username, source_p->host, IsSetStrictCallerID(target_p) ? "+g" : "+G");
target_p->localClient->last_caller_id_time = rb_current_time();
}
static bool
add_callerid_accept_for_source(enum message_type msgtype, struct Client *source_p, struct Client *target_p)
{
+ /* only do this on source_p's server */
+ if (!MyClient(source_p))
+ return true;
+
/*
* XXX: Controversial? Allow target users to send replies
* through a +g. Rationale is that people can presently use +g
* as a way of griefing. --nenolod
*/
if(msgtype != MESSAGE_TYPE_NOTICE &&
- IsSetCallerID(source_p) &&
- !accept_message(target_p, source_p) &&
- !IsOper(target_p))
+ IsSetAnyCallerID(source_p) &&
+ !accept_message(target_p, source_p) &&
+ !MayHavePrivilege(source_p, "oper:always_message"))
{
if(rb_dlink_list_length(&source_p->localClient->allow_list) <
(unsigned long)ConfigFileEntry.max_accept)
{
sendto_one_numeric(source_p, ERR_OWNMODE,
form_str(ERR_OWNMODE),
- target_p->name, "+g");
+ target_p->name, IsSetStrictCallerID(target_p) ? "+g" : "+G");
return false;
}
}
}
static void
-h_can_invite(void *vdata)
+h_hdl_invite(void *vdata)
{
hook_data_channel_approval *data = vdata;
struct Client *source_p = data->client;
struct Client *target_p = data->target;
+ static char errorbuf[BUFSIZE];
if (data->approved)
return;
if (allow_message(source_p, target_p))
return;
- send_callerid_notice(MESSAGE_TYPE_PRIVMSG, source_p, target_p);
+ snprintf(errorbuf, sizeof errorbuf, form_str(ERR_TARGUMODEG),
+ target_p->name, IsSetStrictCallerID(target_p) ? "+g" : "+G");
data->approved = ERR_TARGUMODEG;
+ data->error = errorbuf;
}
static void
data->approved = ERR_TARGUMODEG;
}
+static void
+check_umode_change(void *vdata)
+{
+ hook_data_umode_changed *data = (hook_data_umode_changed *)vdata;
+ bool changed = false;
+ struct Client *source_p = data->client;
+
+ if (!MyClient(source_p))
+ return;
+
+ if (data->oldumodes & UMODE_OPER && !IsOper(source_p))
+ source_p->umodes &= ~user_modes['M'];
+
+ changed = ((data->oldumodes ^ source_p->umodes) & user_modes['M']);
+
+ if (changed && source_p->umodes & user_modes['M'])
+ {
+ if (!HasPrivilege(source_p, "oper:message"))
+ {
+ sendto_one_notice(source_p, ":*** You need oper:message privilege for +M");
+ source_p->umodes &= ~user_modes['M'];
+ return;
+ }
+
+ update_session_deadline(source_p);
+ }
+ else if (changed)
+ {
+ // Unsetting +M; remove the timeout session
+ rb_dlink_node *n, *tn;
+
+ RB_DLINK_FOREACH_SAFE(n, tn, callerid_overriding_opers.head)
+ {
+ struct CallerIDOverrideSession *session_p = n->data;
+
+ if (session_p->client != source_p)
+ continue;
+
+ rb_dlinkDelete(n, &callerid_overriding_opers);
+ rb_free(session_p);
+ }
+ }
+}
+
+static void check_priv_change(void *vdata)
+{
+ hook_data_priv_change *data = (hook_data_priv_change*)vdata;
+ struct Client *source_p = data->client;
+ const char *fakeparv[4];
+
+ if (!MyClient(source_p))
+ return;
+
+ if (source_p->umodes & user_modes['M'] && !HasPrivilege(source_p, "oper:message"))
+ {
+ sendto_one_notice(source_p, ":*** You need oper:message privilege for +M");
+ fakeparv[0] = fakeparv[1] = source_p->name;
+ fakeparv[2] = "-M";
+ fakeparv[3] = NULL;
+ user_mode(source_p, source_p, 3, fakeparv);
+ }
+}
+
+static void
+handle_client_exit(void *vdata)
+{
+ hook_data_client_exit *data = (hook_data_client_exit *) vdata;
+ rb_dlink_node *n, *tn;
+ struct Client *source_p = data->target;
+
+ RB_DLINK_FOREACH_SAFE(n, tn, callerid_overriding_opers.head)
+ {
+ struct CallerIDOverrideSession *session_p = n->data;
+
+ if (session_p->client != source_p)
+ continue;
+
+ rb_dlinkDelete(n, &callerid_overriding_opers);
+ rb_free(session_p);
+ }
+}
+
static mapi_hfn_list_av1 um_callerid_hfnlist[] = {
- { "can_invite", h_can_invite },
- { "privmsg_user", h_hdl_privmsg_user },
+ { "umode_changed", check_umode_change },
+ { "priv_change", check_priv_change },
+ { "invite", h_hdl_invite, HOOK_HIGH },
+ { "privmsg_user", h_hdl_privmsg_user, HOOK_HIGH },
+ { "client_exit", handle_client_exit },
{ NULL, NULL }
};
+static int
+um_callerid_modinit(void)
+{
+ rb_dlink_node *ptr;
+
+ user_modes['g'] = find_umode_slot();
+ if (!user_modes['g'])
+ {
+ ierror("um_callerid: unable to allocate usermode slot for +g; unloading module.");
+ return -1;
+ }
+
+ user_modes['G'] = find_umode_slot();
+ if (!user_modes['G'])
+ {
+ user_modes['g'] = 0;
+
+ ierror("um_callerid: unable to allocate usermode slot for +G; unloading module.");
+ return -1;
+ }
+
+ user_modes['M'] = find_umode_slot();
+ if (!user_modes['M'])
+ {
+ user_modes['g'] = 0;
+ user_modes['G'] = 0;
+
+ ierror("um_callerid: unable to allocate usermode slot for +M; unloading module.");
+ return -1;
+ }
+
+ construct_umodebuf();
+
+ add_isupport("CALLERID", isupport_umode, "g");
+
+ RB_DLINK_FOREACH(ptr, lclient_list.head)
+ {
+ struct Client *client_p = ptr->data;
+ if (IsPerson(client_p) && (client_p->umodes & user_modes['M']))
+ update_session_deadline(client_p);
+ }
+
+ expire_callerid_override_deadlines_ev = rb_event_add("expire_callerid_override_deadlines", expire_callerid_override_deadlines, NULL, 60);
+
+ return 0;
+}
+
+static void
+um_callerid_moddeinit(void)
+{
+ user_modes['g'] = 0;
+ user_modes['G'] = 0;
+ user_modes['M'] = 0;
+ construct_umodebuf();
+
+ delete_isupport("CALLERID");
+
+ rb_event_delete(expire_callerid_override_deadlines_ev);
+}
+
DECLARE_MODULE_AV2(um_callerid, um_callerid_modinit, um_callerid_moddeinit,
NULL, NULL, um_callerid_hfnlist, NULL, NULL, um_callerid_desc);