From 878733fd68ee18e371462e7952ad21e7fd84c96b Mon Sep 17 00:00:00 2001 From: Jilles Tjoelker Date: Mon, 15 Feb 2010 21:58:34 +0100 Subject: [PATCH] Move target change code to src/tgchange.c, so we can use it for /invite as well. --- include/tgchange.h | 36 +++++++++ modules/core/m_message.c | 132 +------------------------------- src/Makefile.in | 1 + src/tgchange.c | 159 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 197 insertions(+), 131 deletions(-) create mode 100644 include/tgchange.h create mode 100644 src/tgchange.c diff --git a/include/tgchange.h b/include/tgchange.h new file mode 100644 index 0000000..e3e4fcc --- /dev/null +++ b/include/tgchange.h @@ -0,0 +1,36 @@ +/* + * charybdis: an advanced Internet Relay Chat Daemon(ircd). + * + * Copyright (C) 2004-2005 Lee Hardy + * Copyright (C) 2005-2010 Jilles Tjoelker + * Copyright (C) 2004-2005 ircd-ratbox development team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + */ + +#ifndef INCLUDED_tgchange_h +#define INCLUDED_tgchange_h + +#include "ircd_defs.h" + +/* finds a channel where source_p has op or voice and target_p is a member */ +struct Channel *find_allowing_channel(struct Client *source_p, struct Client *target_p); +/* checks if source_p is allowed to send to target_p */ +int add_target(struct Client *source_p, struct Client *target_p); +/* allows source_p to send to target_p */ +void add_reply_target(struct Client *source_p, struct Client *target_p); + +#endif /* INCLUDED_tgchange_h */ diff --git a/modules/core/m_message.c b/modules/core/m_message.c index 2b7a750..faca813 100644 --- a/modules/core/m_message.c +++ b/modules/core/m_message.c @@ -43,6 +43,7 @@ #include "send.h" #include "s_newconf.h" #include "s_stats.h" +#include "tgchange.h" #include "inline/stringops.h" static int m_message(int, const char *, struct Client *, struct Client *, int, const char **); @@ -90,7 +91,6 @@ static int build_target_list(int p_or_n, const char *command, struct Client *client_p, struct Client *source_p, const char *nicks_channels, const char *text); -static struct Channel *find_allowing_channel(struct Client *source_p, struct Client *target_p); static int flood_attack_client(int p_or_n, struct Client *source_p, struct Client *target_p); static int flood_attack_channel(int p_or_n, struct Client *source_p, struct Channel *chptr, char *chname); @@ -662,121 +662,6 @@ expire_tgchange(void *unused) } } -/* checks if source_p is allowed to send to target_p */ -static int -add_target(struct Client *source_p, struct Client *target_p) -{ - int i, j; - uint32_t hashv; - uint32_t *targets; - - /* can msg themselves or services without using any target slots */ - if(source_p == target_p || IsService(target_p)) - return 1; - - /* special condition for those who have had PRIVMSG crippled to allow them - * to talk to IRCops still. - * - * XXX: is this controversial? - */ - if(source_p->localClient->target_last > rb_current_time() && IsOper(target_p)) - return 1; - - hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32); - targets = source_p->localClient->targets; - - /* check for existing target, and move it to the head */ - for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++) - { - if(targets[i] == hashv) - { - for(j = i; j > 0; j--) - targets[j] = targets[j - 1]; - targets[0] = hashv; - return 1; - } - } - - if(source_p->localClient->targets_free < TGCHANGE_NUM) - { - /* first message after connect, we may only start clearing - * slots after this message --anfl - */ - if(!IsTGChange(source_p)) - { - SetTGChange(source_p); - source_p->localClient->target_last = rb_current_time(); - } - /* clear as many targets as we can */ - else if((i = (rb_current_time() - source_p->localClient->target_last) / 60)) - { - if(i + source_p->localClient->targets_free > TGCHANGE_NUM) - source_p->localClient->targets_free = TGCHANGE_NUM; - else - source_p->localClient->targets_free += i; - - source_p->localClient->target_last = rb_current_time(); - } - /* cant clear any, full target list */ - else if(source_p->localClient->targets_free == 0) - { - ServerStats.is_tgch++; - add_tgchange(source_p->sockhost); - return 0; - } - } - /* no targets in use, reset their target_last so that they cant - * abuse a long idle to get targets back more quickly - */ - else - { - source_p->localClient->target_last = rb_current_time(); - SetTGChange(source_p); - } - - for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > 0; i--) - targets[i] = targets[i - 1]; - targets[0] = hashv; - source_p->localClient->targets_free--; - return 1; -} - -/* allows source_p to send to target_p */ -static void -add_reply_target(struct Client *source_p, struct Client *target_p) -{ - int i, j; - uint32_t hashv; - uint32_t *targets; - - /* can msg themselves or services without using any target slots */ - if(source_p == target_p || IsService(target_p)) - return; - - hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32); - targets = source_p->localClient->targets; - - /* check for existing target, and move it to the first reply slot - * if it is in a reply slot - */ - for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++) - { - if(targets[i] == hashv) - { - if(i > TGCHANGE_NUM) - { - for(j = i; j > TGCHANGE_NUM; j--) - targets[j] = targets[j - 1]; - targets[TGCHANGE_NUM] = hashv; - } - return; - } - } - for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > TGCHANGE_NUM; i--) - targets[i] = targets[i - 1]; - targets[TGCHANGE_NUM] = hashv; -} - /* * msg_client * @@ -902,21 +787,6 @@ msg_client(int p_or_n, const char *command, return; } -static struct Channel * -find_allowing_channel(struct Client *source_p, struct Client *target_p) -{ - rb_dlink_node *ptr; - struct membership *msptr; - - RB_DLINK_FOREACH(ptr, source_p->user->channel.head) - { - msptr = ptr->data; - if (is_chanop_voiced(msptr) && IsMember(target_p, msptr->chptr)) - return msptr->chptr; - } - return NULL; -} - /* * flood_attack_client * inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC diff --git a/src/Makefile.in b/src/Makefile.in index fc6fde4..ac0967a 100644 --- a/src/Makefile.in +++ b/src/Makefile.in @@ -95,6 +95,7 @@ SRCS = \ sslproc.c \ substitution.c \ supported.c \ + tgchange.c \ whowas.c OBJS = ${SRCS:.c=.o} diff --git a/src/tgchange.c b/src/tgchange.c new file mode 100644 index 0000000..387b191 --- /dev/null +++ b/src/tgchange.c @@ -0,0 +1,159 @@ +/* + * charybdis: an advanced Internet Relay Chat Daemon(ircd). + * tgchange.c - code for restricting private messages + * + * Copyright (C) 2004-2005 Lee Hardy + * Copyright (C) 2005-2010 Jilles Tjoelker + * Copyright (C) 2004-2005 ircd-ratbox development team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + */ + +#include "stdinc.h" +#include "tgchange.h" +#include "channel.h" +#include "client.h" +#include "s_stats.h" +#include "hash.h" +#include "s_newconf.h" + +struct Channel * +find_allowing_channel(struct Client *source_p, struct Client *target_p) +{ + rb_dlink_node *ptr; + struct membership *msptr; + + RB_DLINK_FOREACH(ptr, source_p->user->channel.head) + { + msptr = ptr->data; + if (is_chanop_voiced(msptr) && IsMember(target_p, msptr->chptr)) + return msptr->chptr; + } + return NULL; +} + +int +add_target(struct Client *source_p, struct Client *target_p) +{ + int i, j; + uint32_t hashv; + uint32_t *targets; + + /* can msg themselves or services without using any target slots */ + if(source_p == target_p || IsService(target_p)) + return 1; + + /* special condition for those who have had PRIVMSG crippled to allow them + * to talk to IRCops still. + * + * XXX: is this controversial? + */ + if(source_p->localClient->target_last > rb_current_time() && IsOper(target_p)) + return 1; + + hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32); + targets = source_p->localClient->targets; + + /* check for existing target, and move it to the head */ + for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++) + { + if(targets[i] == hashv) + { + for(j = i; j > 0; j--) + targets[j] = targets[j - 1]; + targets[0] = hashv; + return 1; + } + } + + if(source_p->localClient->targets_free < TGCHANGE_NUM) + { + /* first message after connect, we may only start clearing + * slots after this message --anfl + */ + if(!IsTGChange(source_p)) + { + SetTGChange(source_p); + source_p->localClient->target_last = rb_current_time(); + } + /* clear as many targets as we can */ + else if((i = (rb_current_time() - source_p->localClient->target_last) / 60)) + { + if(i + source_p->localClient->targets_free > TGCHANGE_NUM) + source_p->localClient->targets_free = TGCHANGE_NUM; + else + source_p->localClient->targets_free += i; + + source_p->localClient->target_last = rb_current_time(); + } + /* cant clear any, full target list */ + else if(source_p->localClient->targets_free == 0) + { + ServerStats.is_tgch++; + add_tgchange(source_p->sockhost); + return 0; + } + } + /* no targets in use, reset their target_last so that they cant + * abuse a long idle to get targets back more quickly + */ + else + { + source_p->localClient->target_last = rb_current_time(); + SetTGChange(source_p); + } + + for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > 0; i--) + targets[i] = targets[i - 1]; + targets[0] = hashv; + source_p->localClient->targets_free--; + return 1; +} + +void +add_reply_target(struct Client *source_p, struct Client *target_p) +{ + int i, j; + uint32_t hashv; + uint32_t *targets; + + /* can msg themselves or services without using any target slots */ + if(source_p == target_p || IsService(target_p)) + return; + + hashv = fnv_hash_upper((const unsigned char *)use_id(target_p), 32); + targets = source_p->localClient->targets; + + /* check for existing target, and move it to the first reply slot + * if it is in a reply slot + */ + for(i = 0; i < TGCHANGE_NUM + TGCHANGE_REPLY; i++) + { + if(targets[i] == hashv) + { + if(i > TGCHANGE_NUM) + { + for(j = i; j > TGCHANGE_NUM; j--) + targets[j] = targets[j - 1]; + targets[TGCHANGE_NUM] = hashv; + } + return; + } + } + for(i = TGCHANGE_NUM + TGCHANGE_REPLY - 1; i > TGCHANGE_NUM; i--) + targets[i] = targets[i - 1]; + targets[TGCHANGE_NUM] = hashv; +}