mirror of
https://github.com/matrix-construct/construct
synced 2024-11-26 00:32:35 +01:00
Move target change code to src/tgchange.c,
so we can use it for /invite as well.
This commit is contained in:
Jilles Tjoelker
parent
c9f01c4f2f
commit
4f2685f3e1
4 changed files with 197 additions and 131 deletions
36
include/tgchange.h
Normal file
36
include/tgchange.h
Normal file
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@ -0,0 +1,36 @@
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/*
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* charybdis: an advanced Internet Relay Chat Daemon(ircd).
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*
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* Copyright (C) 2004-2005 Lee Hardy <lee@leeh.co.uk>
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* Copyright (C) 2005-2010 Jilles Tjoelker <jilles@stack.nl>
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* Copyright (C) 2004-2005 ircd-ratbox development team
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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 2 of the License, or
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* (at your option) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#ifndef INCLUDED_tgchange_h
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#define INCLUDED_tgchange_h
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#include "ircd_defs.h"
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/* finds a channel where source_p has op or voice and target_p is a member */
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struct Channel *find_allowing_channel(struct Client *source_p, struct Client *target_p);
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/* checks if source_p is allowed to send to target_p */
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int add_target(struct Client *source_p, struct Client *target_p);
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/* allows source_p to send to target_p */
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void add_reply_target(struct Client *source_p, struct Client *target_p);
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#endif /* INCLUDED_tgchange_h */
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@ -43,6 +43,7 @@
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#include "send.h"
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#include "s_newconf.h"
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#include "s_stats.h"
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#include "tgchange.h"
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#include "inline/stringops.h"
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static int m_message(int, const char *, struct Client *, struct Client *, int, const char **);
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@ -90,7 +91,6 @@ static int build_target_list(int p_or_n, const char *command,
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struct Client *client_p,
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struct Client *source_p, const char *nicks_channels, const char *text);
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static struct Channel *find_allowing_channel(struct Client *source_p, struct Client *target_p);
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static int flood_attack_client(int p_or_n, struct Client *source_p, struct Client *target_p);
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static int flood_attack_channel(int p_or_n, struct Client *source_p,
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struct Channel *chptr, char *chname);
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@ -662,121 +662,6 @@ expire_tgchange(void *unused)
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}
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}
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/* checks if source_p is allowed to send to target_p */
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static int
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add_target(struct Client *source_p, struct Client *target_p)
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{
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int i, j;
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uint32_t hashv;
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uint32_t *targets;
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/* can msg themselves or services without using any target slots */
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if(source_p == target_p || IsService(target_p))
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return 1;
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/* special condition for those who have had PRIVMSG crippled to allow them
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* to talk to IRCops still.
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*
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* XXX: is this controversial?
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*/
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if(source_p->localClient->target_last > rb_current_time() && IsOper(target_p))
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return 1;
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hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32);
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targets = source_p->localClient->targets;
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/* check for existing target, and move it to the head */
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for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++)
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{
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if(targets[i] == hashv)
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{
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for(j = i; j > 0; j--)
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targets[j] = targets[j - 1];
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targets[0] = hashv;
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return 1;
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}
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}
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if(source_p->localClient->targets_free < TGCHANGE_NUM)
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{
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/* first message after connect, we may only start clearing
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* slots after this message --anfl
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*/
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if(!IsTGChange(source_p))
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{
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SetTGChange(source_p);
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source_p->localClient->target_last = rb_current_time();
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}
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/* clear as many targets as we can */
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else if((i = (rb_current_time() - source_p->localClient->target_last) / 60))
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{
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if(i + source_p->localClient->targets_free > TGCHANGE_NUM)
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source_p->localClient->targets_free = TGCHANGE_NUM;
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else
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source_p->localClient->targets_free += i;
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source_p->localClient->target_last = rb_current_time();
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}
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/* cant clear any, full target list */
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else if(source_p->localClient->targets_free == 0)
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{
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ServerStats.is_tgch++;
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add_tgchange(source_p->sockhost);
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return 0;
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}
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}
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/* no targets in use, reset their target_last so that they cant
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* abuse a long idle to get targets back more quickly
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*/
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else
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{
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source_p->localClient->target_last = rb_current_time();
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SetTGChange(source_p);
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}
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for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > 0; i--)
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targets[i] = targets[i - 1];
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targets[0] = hashv;
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source_p->localClient->targets_free--;
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return 1;
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}
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/* allows source_p to send to target_p */
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static void
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add_reply_target(struct Client *source_p, struct Client *target_p)
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{
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int i, j;
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uint32_t hashv;
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uint32_t *targets;
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/* can msg themselves or services without using any target slots */
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if(source_p == target_p || IsService(target_p))
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return;
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hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32);
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targets = source_p->localClient->targets;
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/* check for existing target, and move it to the first reply slot
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* if it is in a reply slot
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*/
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for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++)
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{
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if(targets[i] == hashv)
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{
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if(i > TGCHANGE_NUM)
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{
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for(j = i; j > TGCHANGE_NUM; j--)
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targets[j] = targets[j - 1];
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targets[TGCHANGE_NUM] = hashv;
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}
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return;
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}
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}
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for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > TGCHANGE_NUM; i--)
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targets[i] = targets[i - 1];
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targets[TGCHANGE_NUM] = hashv;
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}
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/*
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* msg_client
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*
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@ -902,21 +787,6 @@ msg_client(int p_or_n, const char *command,
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return;
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}
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static struct Channel *
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find_allowing_channel(struct Client *source_p, struct Client *target_p)
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{
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rb_dlink_node *ptr;
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struct membership *msptr;
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RB_DLINK_FOREACH(ptr, source_p->user->channel.head)
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{
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msptr = ptr->data;
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if (is_chanop_voiced(msptr) && IsMember(target_p, msptr->chptr))
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return msptr->chptr;
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}
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return NULL;
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}
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/*
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* flood_attack_client
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* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
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@ -95,6 +95,7 @@ SRCS = \
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sslproc.c \
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substitution.c \
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supported.c \
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tgchange.c \
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whowas.c
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OBJS = ${SRCS:.c=.o}
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159
src/tgchange.c
Normal file
159
src/tgchange.c
Normal file
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@ -0,0 +1,159 @@
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/*
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* charybdis: an advanced Internet Relay Chat Daemon(ircd).
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* tgchange.c - code for restricting private messages
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*
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* Copyright (C) 2004-2005 Lee Hardy <lee@leeh.co.uk>
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* Copyright (C) 2005-2010 Jilles Tjoelker <jilles@stack.nl>
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* Copyright (C) 2004-2005 ircd-ratbox development team
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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 2 of the License, or
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* (at your option) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "stdinc.h"
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#include "tgchange.h"
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#include "channel.h"
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#include "client.h"
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#include "s_stats.h"
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#include "hash.h"
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#include "s_newconf.h"
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struct Channel *
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find_allowing_channel(struct Client *source_p, struct Client *target_p)
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{
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rb_dlink_node *ptr;
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struct membership *msptr;
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RB_DLINK_FOREACH(ptr, source_p->user->channel.head)
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{
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msptr = ptr->data;
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if (is_chanop_voiced(msptr) && IsMember(target_p, msptr->chptr))
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return msptr->chptr;
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}
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return NULL;
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}
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int
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add_target(struct Client *source_p, struct Client *target_p)
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{
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int i, j;
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uint32_t hashv;
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uint32_t *targets;
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/* can msg themselves or services without using any target slots */
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if(source_p == target_p || IsService(target_p))
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return 1;
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/* special condition for those who have had PRIVMSG crippled to allow them
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* to talk to IRCops still.
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*
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* XXX: is this controversial?
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*/
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if(source_p->localClient->target_last > rb_current_time() && IsOper(target_p))
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return 1;
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hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32);
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targets = source_p->localClient->targets;
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/* check for existing target, and move it to the head */
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for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++)
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{
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if(targets[i] == hashv)
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{
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for(j = i; j > 0; j--)
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targets[j] = targets[j - 1];
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targets[0] = hashv;
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return 1;
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}
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}
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if(source_p->localClient->targets_free < TGCHANGE_NUM)
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{
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/* first message after connect, we may only start clearing
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* slots after this message --anfl
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*/
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if(!IsTGChange(source_p))
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{
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SetTGChange(source_p);
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source_p->localClient->target_last = rb_current_time();
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}
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/* clear as many targets as we can */
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else if((i = (rb_current_time() - source_p->localClient->target_last) / 60))
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{
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if(i + source_p->localClient->targets_free > TGCHANGE_NUM)
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source_p->localClient->targets_free = TGCHANGE_NUM;
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else
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source_p->localClient->targets_free += i;
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source_p->localClient->target_last = rb_current_time();
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}
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/* cant clear any, full target list */
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else if(source_p->localClient->targets_free == 0)
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{
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ServerStats.is_tgch++;
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add_tgchange(source_p->sockhost);
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return 0;
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}
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}
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/* no targets in use, reset their target_last so that they cant
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* abuse a long idle to get targets back more quickly
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*/
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else
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{
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source_p->localClient->target_last = rb_current_time();
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SetTGChange(source_p);
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}
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for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > 0; i--)
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targets[i] = targets[i - 1];
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targets[0] = hashv;
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source_p->localClient->targets_free--;
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return 1;
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}
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void
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add_reply_target(struct Client *source_p, struct Client *target_p)
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{
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int i, j;
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uint32_t hashv;
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uint32_t *targets;
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/* can msg themselves or services without using any target slots */
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if(source_p == target_p || IsService(target_p))
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return;
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hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32);
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targets = source_p->localClient->targets;
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/* check for existing target, and move it to the first reply slot
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* if it is in a reply slot
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*/
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for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++)
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{
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if(targets[i] == hashv)
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{
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if(i > TGCHANGE_NUM)
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{
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for(j = i; j > TGCHANGE_NUM; j--)
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targets[j] = targets[j - 1];
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targets[TGCHANGE_NUM] = hashv;
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}
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return;
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}
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}
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for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > TGCHANGE_NUM; i--)
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targets[i] = targets[i - 1];
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targets[TGCHANGE_NUM] = hashv;
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}
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