mirror of
git://git.acid.vegas/unrealircd.git
synced 2024-11-15 12:36:41 +00:00
367 lines
16 KiB
C
367 lines
16 KiB
C
/************************************************************************
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* IRC - Internet Relay Chat, src/api-efunctions.c
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* (C) 2003-2019 Bram Matthys (Syzop) and the UnrealIRCd Team
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*
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* See file AUTHORS in IRC package for additional names of
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* the programmers.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "unrealircd.h"
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/* Types */
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typedef struct {
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char *name;
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void **funcptr;
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void *deffunc;
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} EfunctionsList;
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/* Variables */
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static Efunction *Efunctions[MAXEFUNCTIONS]; /* Efunction objects (used for rehashing) */
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static EfunctionsList efunction_table[MAXEFUNCTIONS];
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/* Efuncs */
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void (*do_join)(Client *client, int parc, char *parv[]);
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void (*join_channel)(Channel *channel, Client *client, MessageTag *mtags, int flags);
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int (*can_join)(Client *client, Channel *channel, char *key, char *parv[]);
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void (*do_mode)(Channel *channel, Client *client, MessageTag *mtags, int parc, char *parv[], time_t sendts, int samode);
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void (*set_mode)(Channel *channel, Client *client, int parc, char *parv[], u_int *pcount,
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char pvar[MAXMODEPARAMS][MODEBUFLEN + 3], int bounce);
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void (*cmd_umode)(Client *client, MessageTag *mtags, int parc, char *parv[]);
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int (*register_user)(Client *client, char *nick, char *username, char *umode, char *virthost, char *ip);
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int (*tkl_hash)(unsigned int c);
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char (*tkl_typetochar)(int type);
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int (*tkl_chartotype)(char c);
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char *(*tkl_type_string)(TKL *tk);
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TKL *(*tkl_add_serverban)(int type, char *usermask, char *hostmask, char *reason, char *setby,
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time_t expire_at, time_t set_at, int soft, int flags);
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TKL *(*tkl_add_nameban)(int type, char *name, int hold, char *reason, char *setby,
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time_t expire_at, time_t set_at, int flags);
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TKL *(*tkl_add_spamfilter)(int type, unsigned short target, unsigned short action, Match *match, char *setby,
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time_t expire_at, time_t set_at,
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time_t spamf_tkl_duration, char *spamf_tkl_reason,
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int flags);
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TKL *(*tkl_add_banexception)(int type, char *usermask, char *hostmask, char *reason, char *set_by,
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time_t expire_at, time_t set_at, int soft, char *bantypes, int flags);
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TKL *(*tkl_del_line)(TKL *tkl);
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void (*tkl_check_local_remove_shun)(TKL *tmp);
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int (*find_tkline_match)(Client *client, int skip_soft);
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int (*find_shun)(Client *client);
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int(*find_spamfilter_user)(Client *client, int flags);
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TKL *(*find_qline)(Client *client, char *nick, int *ishold);
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TKL *(*find_tkline_match_zap)(Client *client);
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void (*tkl_stats)(Client *client, int type, char *para, int *cnt);
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void (*tkl_sync)(Client *client);
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void (*cmd_tkl)(Client *client, MessageTag *mtags, int parc, char *parv[]);
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int (*place_host_ban)(Client *client, BanAction action, char *reason, long duration);
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int (*match_spamfilter)(Client *client, char *str_in, int type, char *target, int flags, TKL **rettk);
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int (*join_viruschan)(Client *client, TKL *tk, int type);
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unsigned char *(*StripColors)(unsigned char *text);
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const char *(*StripControlCodes)(unsigned char *text);
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void (*spamfilter_build_user_string)(char *buf, char *nick, Client *client);
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void (*send_protoctl_servers)(Client *client, int response);
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int (*verify_link)(Client *client, char *servername, ConfigItem_link **link_out);
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void (*introduce_user)(Client *to, Client *client);
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void (*send_server_message)(Client *client);
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void (*broadcast_md_client)(ModDataInfo *mdi, Client *client, ModData *md);
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void (*broadcast_md_channel)(ModDataInfo *mdi, Channel *channel, ModData *md);
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void (*broadcast_md_member)(ModDataInfo *mdi, Channel *channel, Member *m, ModData *md);
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void (*broadcast_md_membership)(ModDataInfo *mdi, Client *client, Membership *m, ModData *md);
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int (*check_banned)(Client *client, int exitflags);
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int (*check_deny_version)(Client *client, char *software, int protocol, char *flags);
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void (*broadcast_md_client_cmd)(Client *except, Client *sender, Client *acptr, char *varname, char *value);
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void (*broadcast_md_channel_cmd)(Client *except, Client *sender, Channel *channel, char *varname, char *value);
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void (*broadcast_md_member_cmd)(Client *except, Client *sender, Channel *channel, Client *acptr, char *varname, char *value);
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void (*broadcast_md_membership_cmd)(Client *except, Client *sender, Client *acptr, Channel *channel, char *varname, char *value);
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void (*send_moddata_client)(Client *srv, Client *client);
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void (*send_moddata_channel)(Client *srv, Channel *channel);
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void (*send_moddata_members)(Client *srv);
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void (*broadcast_moddata_client)(Client *client);
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int (*match_user)(char *rmask, Client *client, int options);
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void (*userhost_changed)(Client *client);
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void (*userhost_save_current)(Client *client);
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void (*send_join_to_local_users)(Client *client, Channel *channel, MessageTag *mtags);
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int (*do_nick_name)(char *nick);
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int (*do_remote_nick_name)(char *nick);
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char *(*charsys_get_current_languages)(void);
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void (*broadcast_sinfo)(Client *client, Client *to, Client *except);
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void (*parse_message_tags)(Client *client, char **str, MessageTag **mtag_list);
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char *(*mtags_to_string)(MessageTag *m, Client *client);
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int (*can_send_to_channel)(Client *client, Channel *channel, char **msgtext, char **errmsg, int notice);
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void (*broadcast_md_globalvar)(ModDataInfo *mdi, ModData *md);
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void (*broadcast_md_globalvar_cmd)(Client *except, Client *sender, char *varname, char *value);
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int (*tkl_ip_hash)(char *ip);
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int (*tkl_ip_hash_type)(int type);
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void (*sendnotice_tkl_del)(char *removed_by, TKL *tkl);
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void (*sendnotice_tkl_add)(TKL *tkl);
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void (*free_tkl)(TKL *tkl);
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TKL *(*find_tkl_serverban)(int type, char *usermask, char *hostmask, int softban);
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TKL *(*find_tkl_banexception)(int type, char *usermask, char *hostmask, int softban);
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TKL *(*find_tkl_nameban)(int type, char *name, int hold);
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TKL *(*find_tkl_spamfilter)(int type, char *match_string, unsigned short action, unsigned short target);
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int (*find_tkl_exception)(int ban_type, Client *client);
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int (*is_silenced)(Client *client, Client *acptr);
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int (*del_silence)(Client *client, const char *mask);
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int (*add_silence)(Client *client, const char *mask, int senderr);
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void *(*labeled_response_save_context)(void);
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void (*labeled_response_set_context)(void *ctx);
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void (*labeled_response_force_end)(void);
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void (*kick_user)(MessageTag *mtags, Channel *channel, Client *client, Client *victim, char *comment);
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Efunction *EfunctionAddMain(Module *module, EfunctionType eftype, int (*func)(), void (*vfunc)(), void *(*pvfunc)(), char *(*cfunc)())
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{
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Efunction *p;
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if (!module || !(module->options & MOD_OPT_OFFICIAL))
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{
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if (module)
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module->errorcode = MODERR_INVALID;
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return NULL;
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}
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p = safe_alloc(sizeof(Efunction));
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if (func)
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p->func.intfunc = func;
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if (vfunc)
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p->func.voidfunc = vfunc;
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if (pvfunc)
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p->func.pvoidfunc = pvfunc;
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if (cfunc)
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p->func.pcharfunc = cfunc;
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p->type = eftype;
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p->owner = module;
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AddListItem(p, Efunctions[eftype]);
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if (module)
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{
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ModuleObject *cbobj = safe_alloc(sizeof(ModuleObject));
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cbobj->object.efunction = p;
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cbobj->type = MOBJ_EFUNCTION;
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AddListItem(cbobj, module->objects);
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module->errorcode = MODERR_NOERROR;
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}
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return p;
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}
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Efunction *EfunctionDel(Efunction *cb)
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{
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Efunction *p, *q;
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for (p = Efunctions[cb->type]; p; p = p->next)
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{
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if (p == cb)
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{
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q = p->next;
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DelListItem(p, Efunctions[cb->type]);
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if (*efunction_table[cb->type].funcptr == p)
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*efunction_table[cb->type].funcptr = NULL;
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if (p->owner)
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{
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ModuleObject *cbobj;
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for (cbobj = p->owner->objects; cbobj; cbobj = cbobj->next)
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{
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if ((cbobj->type == MOBJ_EFUNCTION) && (cbobj->object.efunction == p))
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{
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DelListItem(cbobj, cb->owner->objects);
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safe_free(cbobj);
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break;
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}
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}
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}
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safe_free(p);
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return q;
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}
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}
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return NULL;
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}
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static int num_efunctions(EfunctionType eftype)
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{
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Efunction *e;
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int cnt = 0;
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#ifdef DEBUGMODE
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if ((eftype < 0) || (eftype >= MAXEFUNCTIONS))
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abort();
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#endif
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for (e = Efunctions[eftype]; e; e = e->next)
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if (!e->willberemoved)
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cnt++;
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return cnt;
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}
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/** Ensure that all efunctions are present. */
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int efunctions_check(void)
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{
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int i, n, errors=0;
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for (i=0; i < MAXEFUNCTIONS; i++)
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if (efunction_table[i].name)
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{
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n = num_efunctions(i);
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if ((n != 1) && (errors > 10))
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{
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config_error("[--efunction errors truncated to prevent flooding--]");
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break;
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}
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if ((n < 1) && !efunction_table[i].deffunc)
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{
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config_error("ERROR: efunction '%s' not found, you probably did not "
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"load all required modules! (hint: see modules.default.conf)",
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efunction_table[i].name);
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errors++;
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} else
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if (n > 1)
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{
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config_error("ERROR: efunction '%s' was found %d times, perhaps you "
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"loaded a module multiple times??",
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efunction_table[i].name, n);
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errors++;
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}
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}
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return errors ? -1 : 0;
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}
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void efunctions_switchover(void)
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{
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Efunction *e;
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int i;
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/* Now set the real efunction, and tag the new one
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* as 'willberemoved' if needed.
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*/
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for (i=0; i < MAXEFUNCTIONS; i++)
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{
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int found = 0;
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for (e = Efunctions[i]; e; e = e->next)
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{
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if (e->willberemoved)
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continue;
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if (!efunction_table[i].funcptr)
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{
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ircd_log(LOG_ERROR, "[BUG] efunctions_switchover(): someone forgot to initialize the function table for efunc %d", i);
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abort();
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}
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*efunction_table[i].funcptr = e->func.voidfunc; /* This is the new one. */
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if (!(e->owner->options & MOD_OPT_PERM))
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e->willberemoved = 1;
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found = 1;
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break;
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}
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if (!found)
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{
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if (efunction_table[i].deffunc)
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*efunction_table[i].funcptr = efunction_table[i].deffunc;
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}
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}
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}
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#define efunc_init_function(what, func, default_func) efunc_init_function_(what, #func, (void *)&func, default_func)
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void efunc_init_function_(EfunctionType what, char *name, void *func, void *default_func)
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{
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safe_strdup(efunction_table[what].name, name);
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efunction_table[what].funcptr = func;
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efunction_table[what].deffunc = default_func;
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}
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void efunctions_init(void)
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{
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memset(&efunction_table, 0, sizeof(efunction_table));
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efunc_init_function(EFUNC_DO_JOIN, do_join, NULL);
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efunc_init_function(EFUNC_JOIN_CHANNEL, join_channel, NULL);
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efunc_init_function(EFUNC_CAN_JOIN, can_join, NULL);
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efunc_init_function(EFUNC_DO_MODE, do_mode, NULL);
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efunc_init_function(EFUNC_SET_MODE, set_mode, NULL);
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efunc_init_function(EFUNC_CMD_UMODE, cmd_umode, NULL);
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efunc_init_function(EFUNC_REGISTER_USER, register_user, NULL);
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efunc_init_function(EFUNC_TKL_HASH, tkl_hash, NULL);
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efunc_init_function(EFUNC_TKL_TYPETOCHAR, tkl_typetochar, NULL);
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efunc_init_function(EFUNC_TKL_ADD_SERVERBAN, tkl_add_serverban, NULL);
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efunc_init_function(EFUNC_TKL_ADD_BANEXCEPTION, tkl_add_banexception, NULL);
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efunc_init_function(EFUNC_TKL_DEL_LINE, tkl_del_line, NULL);
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efunc_init_function(EFUNC_TKL_CHECK_LOCAL_REMOVE_SHUN, tkl_check_local_remove_shun, NULL);
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efunc_init_function(EFUNC_FIND_TKLINE_MATCH, find_tkline_match, NULL);
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efunc_init_function(EFUNC_FIND_SHUN, find_shun, NULL);
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efunc_init_function(EFUNC_FIND_SPAMFILTER_USER, find_spamfilter_user, NULL);
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efunc_init_function(EFUNC_FIND_QLINE, find_qline, NULL);
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efunc_init_function(EFUNC_FIND_TKLINE_MATCH_ZAP, find_tkline_match_zap, NULL);
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efunc_init_function(EFUNC_TKL_STATS, tkl_stats, NULL);
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efunc_init_function(EFUNC_TKL_SYNCH, tkl_sync, NULL);
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efunc_init_function(EFUNC_CMD_TKL, cmd_tkl, NULL);
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efunc_init_function(EFUNC_PLACE_HOST_BAN, place_host_ban, NULL);
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efunc_init_function(EFUNC_DOSPAMFILTER, match_spamfilter, NULL);
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efunc_init_function(EFUNC_DOSPAMFILTER_VIRUSCHAN, join_viruschan, NULL);
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efunc_init_function(EFUNC_STRIPCOLORS, StripColors, NULL);
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efunc_init_function(EFUNC_STRIPCONTROLCODES, StripControlCodes, NULL);
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efunc_init_function(EFUNC_SPAMFILTER_BUILD_USER_STRING, spamfilter_build_user_string, NULL);
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efunc_init_function(EFUNC_SEND_PROTOCTL_SERVERS, send_protoctl_servers, NULL);
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efunc_init_function(EFUNC_VERIFY_LINK, verify_link, NULL);
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efunc_init_function(EFUNC_SEND_SERVER_MESSAGE, send_server_message, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_CLIENT, broadcast_md_client, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_CHANNEL, broadcast_md_channel, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_MEMBER, broadcast_md_member, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_MEMBERSHIP, broadcast_md_membership, NULL);
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efunc_init_function(EFUNC_CHECK_BANNED, check_banned, NULL);
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efunc_init_function(EFUNC_INTRODUCE_USER, introduce_user, NULL);
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efunc_init_function(EFUNC_CHECK_DENY_VERSION, check_deny_version, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_CLIENT_CMD, broadcast_md_client_cmd, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_CHANNEL_CMD, broadcast_md_channel_cmd, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_MEMBER_CMD, broadcast_md_member_cmd, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_MEMBERSHIP_CMD, broadcast_md_membership_cmd, NULL);
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efunc_init_function(EFUNC_SEND_MODDATA_CLIENT, send_moddata_client, NULL);
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efunc_init_function(EFUNC_SEND_MODDATA_CHANNEL, send_moddata_channel, NULL);
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efunc_init_function(EFUNC_SEND_MODDATA_MEMBERS, send_moddata_members, NULL);
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efunc_init_function(EFUNC_BROADCAST_MODDATA_CLIENT, broadcast_moddata_client, NULL);
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efunc_init_function(EFUNC_MATCH_USER, match_user, NULL);
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efunc_init_function(EFUNC_USERHOST_SAVE_CURRENT, userhost_save_current, NULL);
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efunc_init_function(EFUNC_USERHOST_CHANGED, userhost_changed, NULL);
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efunc_init_function(EFUNC_SEND_JOIN_TO_LOCAL_USERS, send_join_to_local_users, NULL);
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efunc_init_function(EFUNC_DO_NICK_NAME, do_nick_name, NULL);
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efunc_init_function(EFUNC_DO_REMOTE_NICK_NAME, do_remote_nick_name, NULL);
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efunc_init_function(EFUNC_CHARSYS_GET_CURRENT_LANGUAGES, charsys_get_current_languages, NULL);
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efunc_init_function(EFUNC_BROADCAST_SINFO, broadcast_sinfo, NULL);
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efunc_init_function(EFUNC_PARSE_MESSAGE_TAGS, parse_message_tags, &parse_message_tags_default_handler);
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efunc_init_function(EFUNC_MTAGS_TO_STRING, mtags_to_string, &mtags_to_string_default_handler);
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efunc_init_function(EFUNC_TKL_CHARTOTYPE, tkl_chartotype, NULL);
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efunc_init_function(EFUNC_TKL_TYPE_STRING, tkl_type_string, NULL);
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efunc_init_function(EFUNC_CAN_SEND_TO_CHANNEL, can_send_to_channel, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_GLOBALVAR, broadcast_md_globalvar, NULL);
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efunc_init_function(EFUNC_BROADCAST_MD_GLOBALVAR_CMD, broadcast_md_globalvar_cmd, NULL);
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efunc_init_function(EFUNC_TKL_IP_HASH, tkl_ip_hash, NULL);
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efunc_init_function(EFUNC_TKL_IP_HASH_TYPE, tkl_ip_hash_type, NULL);
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efunc_init_function(EFUNC_TKL_ADD_NAMEBAN, tkl_add_nameban, NULL);
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efunc_init_function(EFUNC_TKL_ADD_SPAMFILTER, tkl_add_spamfilter, NULL);
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efunc_init_function(EFUNC_SENDNOTICE_TKL_ADD, sendnotice_tkl_add, NULL);
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efunc_init_function(EFUNC_SENDNOTICE_TKL_DEL, sendnotice_tkl_del, NULL);
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efunc_init_function(EFUNC_FREE_TKL, free_tkl, NULL);
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efunc_init_function(EFUNC_FIND_TKL_SERVERBAN, find_tkl_serverban, NULL);
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efunc_init_function(EFUNC_FIND_TKL_BANEXCEPTION, find_tkl_banexception, NULL);
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efunc_init_function(EFUNC_FIND_TKL_NAMEBAN, find_tkl_nameban, NULL);
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efunc_init_function(EFUNC_FIND_TKL_SPAMFILTER, find_tkl_spamfilter, NULL);
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efunc_init_function(EFUNC_FIND_TKL_EXCEPTION, find_tkl_exception, NULL);
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efunc_init_function(EFUNC_ADD_SILENCE, add_silence, add_silence_default_handler);
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efunc_init_function(EFUNC_DEL_SILENCE, del_silence, del_silence_default_handler);
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efunc_init_function(EFUNC_IS_SILENCED, is_silenced, is_silenced_default_handler);
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efunc_init_function(EFUNC_LABELED_RESPONSE_SAVE_CONTEXT, labeled_response_save_context, labeled_response_save_context_default_handler);
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efunc_init_function(EFUNC_LABELED_RESPONSE_SET_CONTEXT, labeled_response_set_context, labeled_response_set_context_default_handler);
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efunc_init_function(EFUNC_LABELED_RESPONSE_FORCE_END, labeled_response_force_end, labeled_response_force_end_default_handler);
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efunc_init_function(EFUNC_KICK_USER, kick_user, NULL);
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}
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