solanum-vs-hackint-and-char.../extensions/helpops.c

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/*
* Helpops system.
* -- kaniini
*/
#include "stdinc.h"
#include "modules.h"
#include "client.h"
#include "hook.h"
#include "ircd.h"
#include "send.h"
#include "s_conf.h"
#include "s_user.h"
#include "s_newconf.h"
#include "numeric.h"
static const char helpops_desc[] = "The helpops system as used by freenode";
static rb_dlink_list helper_list = { NULL, NULL, 0 };
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static void h_hdl_stats_request(void *hdata);
static void h_hdl_new_remote_user(void *client_p);
static void h_hdl_client_exit(void *hdata);
static void h_hdl_umode_changed(void *hdata);
static void h_hdl_whois(void *hdata);
static void recurse_client_exit(struct Client *client_p);
static void helper_add(struct Client *client_p);
static void helper_delete(struct Client *client_p);
static void mo_dehelper(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void me_dehelper(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void do_dehelper(struct Client *source_p, struct Client *target_p);
mapi_hfn_list_av1 helpops_hfnlist[] = {
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{ "doing_stats", h_hdl_stats_request },
{ "new_remote_user", h_hdl_new_remote_user },
{ "client_exit", h_hdl_client_exit },
{ "umode_changed", h_hdl_umode_changed },
{ "doing_whois", h_hdl_whois },
{ "doing_whois_global", h_hdl_whois },
{ NULL, NULL }
};
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#define UMODECHAR_HELPOPS 'h'
struct Message dehelper_msgtab = {
"DEHELPER", 0, 0, 0, 0,
{mg_unreg, mg_not_oper, mg_not_oper, mg_ignore, {me_dehelper, 2}, {mo_dehelper, 2}}
};
mapi_clist_av1 helpops_clist[] = { &dehelper_msgtab, NULL };
static void
mo_dehelper(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char **parv)
{
struct Client *target_p;
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if (!HasPrivilege(source_p, "oper:dehelper"))
{
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sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "dehelper");
return;
}
if(!(target_p = find_named_person(parv[1])))
{
sendto_one_numeric(source_p, ERR_NOSUCHNICK, form_str(ERR_NOSUCHNICK), parv[1]);
return;
}
if(MyClient(target_p))
do_dehelper(source_p, target_p);
else
sendto_one(target_p, ":%s ENCAP %s DEHELPER %s",
use_id(source_p), target_p->servptr->name, use_id(target_p));
}
static void
me_dehelper(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char **parv)
{
struct Client *target_p = find_person(parv[1]);
if(!target_p)
{
sendto_one_numeric(source_p, ERR_NOSUCHNICK, form_str(ERR_NOSUCHNICK), parv[1]);
return;
}
if(!MyClient(target_p))
return;
do_dehelper(source_p, target_p);
}
static void
do_dehelper(struct Client *source_p, struct Client *target_p)
{
const char *fakeparv[4];
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static const char minus_helpops[3] = {'-', UMODECHAR_HELPOPS, '\0'};
if(!(target_p->umodes & user_modes[UMODECHAR_HELPOPS]))
return;
sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "%s is using DEHELPER on %s",
source_p->name, target_p->name);
sendto_one_notice(target_p, ":*** %s is using DEHELPER on you", source_p->name);
fakeparv[0] = fakeparv[1] = target_p->name;
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fakeparv[2] = minus_helpops;
fakeparv[3] = NULL;
user_mode(target_p, target_p, 3, fakeparv);
}
static int
_modinit(void)
{
rb_dlink_node *ptr;
user_modes[UMODECHAR_HELPOPS] = find_umode_slot();
construct_umodebuf();
RB_DLINK_FOREACH (ptr, global_client_list.head)
{
struct Client *client_p = ptr->data;
if (IsPerson(client_p) && (client_p->umodes & user_modes[UMODECHAR_HELPOPS]))
helper_add(client_p);
}
return 0;
}
static void
_moddeinit(void)
{
rb_dlink_node *n, *tn;
user_modes[UMODECHAR_HELPOPS] = 0;
construct_umodebuf();
RB_DLINK_FOREACH_SAFE(n, tn, helper_list.head)
rb_dlinkDestroy(n, &helper_list);
}
static void
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h_hdl_stats_request(void *data)
{
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hook_data_int *hdata = data;
struct Client *target_p;
rb_dlink_node *helper_ptr;
unsigned int count = 0;
if (hdata->arg2 != 'p')
return;
RB_DLINK_FOREACH (helper_ptr, helper_list.head)
{
target_p = helper_ptr->data;
if(target_p->user->away)
continue;
count++;
sendto_one_numeric(hdata->client, RPL_STATSDEBUG,
"p :%s (%s@%s)",
target_p->name, target_p->username,
target_p->host);
}
sendto_one_numeric(hdata->client, RPL_STATSDEBUG,
"p :%u staff members", count);
hdata->result = 1;
}
static void
helper_add(struct Client *client_p)
{
if (rb_dlinkFind(client_p, &helper_list) != NULL)
return;
rb_dlinkAddAlloc(client_p, &helper_list);
}
static void
helper_delete(struct Client *client_p)
{
rb_dlinkFindDestroy(client_p, &helper_list);
}
static void
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h_hdl_new_remote_user(void *data)
{
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struct Client *client_p = data;
if (client_p->umodes & user_modes[UMODECHAR_HELPOPS])
helper_add(client_p);
}
static void
recurse_client_exit(struct Client *client_p)
{
if (IsPerson(client_p))
{
if (client_p->umodes & user_modes[UMODECHAR_HELPOPS])
helper_delete(client_p);
}
else if (IsServer(client_p))
{
rb_dlink_node *nptr;
RB_DLINK_FOREACH(nptr, client_p->serv->users.head)
recurse_client_exit(nptr->data);
RB_DLINK_FOREACH(nptr, client_p->serv->servers.head)
recurse_client_exit(nptr->data);
}
}
static void
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h_hdl_client_exit(void *data)
{
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hook_data_client_exit *hdata = data;
recurse_client_exit(hdata->target);
}
static void
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h_hdl_umode_changed(void *data)
{
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hook_data_umode_changed *hdata = data;
struct Client *source_p = hdata->client;
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/* didn't change +h umode, we don't need to do anything */
bool changed = (hdata->oldumodes ^ source_p->umodes) & user_modes[UMODECHAR_HELPOPS];
if (source_p->umodes & user_modes[UMODECHAR_HELPOPS])
{
if (MyClient(source_p) && !HasPrivilege(source_p, "usermode:helpops"))
{
source_p->umodes &= ~user_modes[UMODECHAR_HELPOPS];
sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "usermode:helpops");
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/* they didn't ask for +h so we must be removing it */
if (!changed)
helper_delete(source_p);
return;
}
if (changed)
helper_add(source_p);
}
else if (changed)
{
helper_delete(source_p);
}
}
static void
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h_hdl_whois(void *data)
{
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hook_data_client *hdata = data;
struct Client *source_p = hdata->client;
struct Client *target_p = hdata->target;
if ((target_p->umodes & user_modes[UMODECHAR_HELPOPS]) && EmptyString(target_p->user->away))
{
sendto_one_numeric(source_p, RPL_WHOISHELPOP, form_str(RPL_WHOISHELPOP), target_p->name);
}
}
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DECLARE_MODULE_AV2(helpops, _modinit, _moddeinit, helpops_clist, NULL, helpops_hfnlist, NULL, NULL, helpops_desc);