+++ /dev/null
-/*
- ignore.c : irssi
-
- Copyright (C) 1999-2000 Timo Sirainen
-
- 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 "module.h"
-#include "signals.h"
-#include "misc.h"
-#include "levels.h"
-#include "lib-config/iconfig.h"
-#include "settings.h"
-
-#include "masks.h"
-#include "servers.h"
-#include "channels.h"
-#include "nicklist.h"
-#include "nickmatch-cache.h"
-
-#include "ignore.h"
-
-GSList *ignores;
-
-static NICKMATCH_REC *nickmatch;
-static int time_tag;
-
-/* check if `text' contains ignored nick at the start of the line. */
-static int ignore_check_replies_rec(IGNORE_REC *rec, CHANNEL_REC *channel,
- const char *text)
-{
- GSList *nicks, *tmp;
-
- nicks = nicklist_find_multiple(channel, rec->mask);
- if (nicks == NULL) return FALSE;
-
- for (tmp = nicks; tmp != NULL; tmp = tmp->next) {
- NICK_REC *nick = tmp->data;
-
- if (nick_match_msg(channel, text, nick->nick))
- return TRUE;
- }
- g_slist_free(nicks);
-
- return FALSE;
-}
-
-static int ignore_check_replies(CHANNEL_REC *chanrec, const char *text)
-{
- GSList *tmp;
-
- if (text == NULL || chanrec == NULL)
- return FALSE;
-
- /* check reply ignores */
- for (tmp = ignores; tmp != NULL; tmp = tmp->next) {
- IGNORE_REC *rec = tmp->data;
-
- if (rec->mask != NULL && rec->replies &&
- ignore_check_replies_rec(rec, chanrec, text))
- return TRUE;
- }
-
- return FALSE;
-}
-
-static int ignore_match_pattern(IGNORE_REC *rec, const char *text)
-{
- if (rec->pattern == NULL)
- return TRUE;
-
- if (text == NULL)
- return FALSE;
-
- if (rec->regexp) {
-#ifdef HAVE_REGEX_H
- return rec->regexp_compiled &&
- regexec(&rec->preg, text, 0, NULL, 0) == 0;
-#else
- return FALSE;
-#endif
- }
-
- return rec->fullword ?
- stristr_full(text, rec->pattern) != NULL :
- stristr(text, rec->pattern) != NULL;
-}
-
-#define ignore_match_level(rec, level) \
- ((level & (rec)->level) != 0)
-
-#define ignore_match_nickmask(rec, nick, nickmask) \
- ((rec)->mask == NULL || \
- (strchr((rec)->mask, '!') != NULL ? \
- match_wildcards((rec)->mask, nickmask) : \
- match_wildcards((rec)->mask, nick)))
-
-#define ignore_match_server(rec, server) \
- ((rec)->servertag == NULL || \
- g_strcasecmp((server)->tag, (rec)->servertag) == 0)
-
-#define ignore_match_channel(rec, channel) \
- ((rec)->channels == NULL || ((channel) != NULL && \
- strarray_find((rec)->channels, (channel)) != -1))
-
-static int ignore_check_without_mask(GSList *list, CHANNEL_REC *channel,
- int level, const char *text)
-{
- GSList *tmp;
- int len, best_mask, best_match, best_patt;
-
- best_mask = best_patt = -1; best_match = FALSE;
- for (tmp = list; tmp != NULL; tmp = tmp->next) {
- IGNORE_REC *rec = tmp->data;
-
- if (ignore_match_level(rec, level) &&
- ignore_match_pattern(rec, text)) {
- len = rec->mask == NULL ? 0 : strlen(rec->mask);
- if (len > best_mask) {
- best_mask = len;
- best_match = !rec->exception;
- } else if (len == best_mask && rec->pattern != NULL) {
- len = strlen(rec->pattern);
- if (len > best_patt) {
- best_patt = len;
- best_match = !rec->exception;
- }
- }
- }
- }
-
- if (best_match || (level & MSGLEVEL_PUBLIC) == 0)
- return best_match;
-
- return ignore_check_replies(channel, text);
-}
-
-int ignore_check(SERVER_REC *server, const char *nick, const char *host,
- const char *channel, const char *text, int level)
-{
- CHANNEL_REC *chanrec;
- NICK_REC *nickrec;
- IGNORE_REC *rec;
- GSList *tmp, *list;
- char *nickmask;
- int len, best_mask, best_match, best_patt;
-
- g_return_val_if_fail(server != NULL, 0);
- if (nick == NULL) nick = "";
-
- chanrec = server == NULL || channel == NULL ? NULL :
- channel_find(server, channel);
- if (chanrec != NULL && nick != NULL &&
- (nickrec = nicklist_find(chanrec, nick)) != NULL) {
- /* nick found - check only ignores in nickmatch cache */
- if (nickrec->host == NULL)
- nicklist_set_host(chanrec, nickrec, host);
-
- list = nickmatch_find(nickmatch, nickrec);
- return ignore_check_without_mask(list, chanrec, level, text);
- }
-
- nickmask = g_strconcat(nick, "!", host, NULL);
-
- best_mask = best_patt = -1; best_match = FALSE;
- for (tmp = ignores; tmp != NULL; tmp = tmp->next) {
- rec = tmp->data;
-
- if (ignore_match_level(rec, level) &&
- ignore_match_server(rec, server) &&
- ignore_match_channel(rec, channel) &&
- ignore_match_nickmask(rec, nick, nickmask) &&
- ignore_match_pattern(rec, text)) {
- len = rec->mask == NULL ? 0 : strlen(rec->mask);
- if (len > best_mask) {
- best_mask = len;
- best_match = !rec->exception;
- } else if (len == best_mask && rec->pattern != NULL) {
- len = strlen(rec->pattern);
- if (len > best_patt) {
- best_patt = len;
- best_match = !rec->exception;
- }
- }
- }
- }
- g_free(nickmask);
-
- if (best_match || (level & MSGLEVEL_PUBLIC) == 0)
- return best_match;
-
- return ignore_check_replies(chanrec, text);
-}
-
-IGNORE_REC *ignore_find(const char *servertag, const char *mask,
- char **channels)
-{
- GSList *tmp;
- char **chan;
- int ignore_servertag;
-
- if (mask != NULL && (*mask == '\0' || strcmp(mask, "*") == 0))
- mask = NULL;
-
- ignore_servertag = servertag != NULL && strcmp(servertag, "*") == 0;
- for (tmp = ignores; tmp != NULL; tmp = tmp->next) {
- IGNORE_REC *rec = tmp->data;
-
- if (!ignore_servertag) {
- if ((servertag == NULL && rec->servertag != NULL) ||
- (servertag != NULL && rec->servertag == NULL))
- continue;
-
- if (servertag != NULL && g_strcasecmp(servertag, rec->servertag) != 0)
- continue;
- }
-
- if ((rec->mask == NULL && mask != NULL) ||
- (rec->mask != NULL && mask == NULL)) continue;
-
- if (rec->mask != NULL && g_strcasecmp(rec->mask, mask) != 0)
- continue;
-
- if ((channels == NULL && rec->channels == NULL))
- return rec; /* no channels - ok */
-
- if (channels != NULL && strcmp(*channels, "*") == 0)
- return rec; /* ignore channels */
-
- if (channels == NULL || rec->channels == NULL)
- continue; /* other doesn't have channels */
-
- if (strarray_length(channels) != strarray_length(rec->channels))
- continue; /* different amount of channels */
-
- /* check that channels match */
- for (chan = channels; *chan != NULL; chan++) {
- if (strarray_find(rec->channels, *chan) == -1)
- break;
- }
-
- if (*chan == NULL)
- return rec; /* channels ok */
- }
-
- return NULL;
-}
-
-static void ignore_set_config(IGNORE_REC *rec)
-{
- CONFIG_NODE *node;
- char *levelstr;
-
- if (rec->level == 0)
- return;
-
- node = iconfig_node_traverse("(ignores", TRUE);
- node = config_node_section(node, NULL, NODE_TYPE_BLOCK);
-
- if (rec->mask != NULL) iconfig_node_set_str(node, "mask", rec->mask);
- if (rec->level) {
- levelstr = bits2level(rec->level);
- iconfig_node_set_str(node, "level", levelstr);
- g_free(levelstr);
- }
- iconfig_node_set_str(node, "pattern", rec->pattern);
- if (rec->exception) iconfig_node_set_bool(node, "exception", TRUE);
- if (rec->regexp) iconfig_node_set_bool(node, "regexp", TRUE);
- if (rec->fullword) iconfig_node_set_bool(node, "fullword", TRUE);
- if (rec->replies) iconfig_node_set_bool(node, "replies", TRUE);
- if (rec->unignore_time != 0)
- iconfig_node_set_int(node, "unignore_time", rec->unignore_time);
- iconfig_node_set_str(node, "servertag", rec->servertag);
-
- if (rec->channels != NULL && *rec->channels != NULL) {
- node = config_node_section(node, "channels", NODE_TYPE_LIST);
- iconfig_node_add_list(node, rec->channels);
- }
-}
-
-static int ignore_index(IGNORE_REC *find)
-{
- GSList *tmp;
- int index;
-
- index = 0;
- for (tmp = ignores; tmp != NULL; tmp = tmp->next) {
- IGNORE_REC *rec = tmp->data;
-
- if (rec == find)
- return index;
- index++;
- }
-
- return -1;
-}
-
-static void ignore_remove_config(IGNORE_REC *rec)
-{
- CONFIG_NODE *node;
-
- node = iconfig_node_traverse("ignores", FALSE);
- if (node != NULL) iconfig_node_list_remove(node, ignore_index(rec));
-}
-
-static void ignore_init_rec(IGNORE_REC *rec)
-{
-#ifdef HAVE_REGEX_H
- if (rec->regexp_compiled) regfree(&rec->preg);
- rec->regexp_compiled = !rec->regexp || rec->pattern == NULL ? FALSE :
- regcomp(&rec->preg, rec->pattern,
- REG_EXTENDED|REG_ICASE|REG_NOSUB) == 0;
-#endif
-}
-
-void ignore_add_rec(IGNORE_REC *rec)
-{
- ignore_init_rec(rec);
-
- ignores = g_slist_append(ignores, rec);
- ignore_set_config(rec);
-
- signal_emit("ignore created", 1, rec);
- nickmatch_rebuild(nickmatch);
-}
-
-static void ignore_destroy(IGNORE_REC *rec, int send_signal)
-{
- ignores = g_slist_remove(ignores, rec);
- if (send_signal)
- signal_emit("ignore destroyed", 1, rec);
-
-#ifdef HAVE_REGEX_H
- if (rec->regexp_compiled) regfree(&rec->preg);
-#endif
- if (rec->channels != NULL) g_strfreev(rec->channels);
- g_free_not_null(rec->mask);
- g_free_not_null(rec->servertag);
- g_free_not_null(rec->pattern);
- g_free(rec);
-
- nickmatch_rebuild(nickmatch);
-}
-
-void ignore_update_rec(IGNORE_REC *rec)
-{
- if (rec->level == 0) {
- /* unignored everything */
- ignore_remove_config(rec);
- ignore_destroy(rec, TRUE);
- } else {
- /* unignore just some levels.. */
- ignore_remove_config(rec);
- ignores = g_slist_remove(ignores, rec);
-
- ignores = g_slist_append(ignores, rec);
- ignore_set_config(rec);
-
- ignore_init_rec(rec);
- signal_emit("ignore changed", 1, rec);
- nickmatch_rebuild(nickmatch);
- }
-}
-
-static int unignore_timeout(void)
-{
- GSList *tmp, *next;
- time_t now;
-
- now = time(NULL);
- for (tmp = ignores; tmp != NULL; tmp = next) {
- IGNORE_REC *rec = tmp->data;
-
- next = tmp->next;
- if (rec->unignore_time > 0 && now >= rec->unignore_time) {
- rec->level = 0;
- ignore_update_rec(rec);
- }
- }
-
- return TRUE;
-}
-
-static void read_ignores(void)
-{
- IGNORE_REC *rec;
- CONFIG_NODE *node;
- GSList *tmp;
-
- while (ignores != NULL)
- ignore_destroy(ignores->data, FALSE);
-
- node = iconfig_node_traverse("ignores", FALSE);
- if (node == NULL) {
- nickmatch_rebuild(nickmatch);
- return;
- }
-
- tmp = config_node_first(node->value);
- for (; tmp != NULL; tmp = config_node_next(tmp)) {
- node = tmp->data;
-
- if (node->type != NODE_TYPE_BLOCK)
- continue;
-
- rec = g_new0(IGNORE_REC, 1);
- ignores = g_slist_append(ignores, rec);
-
- rec->mask = g_strdup(config_node_get_str(node, "mask", NULL));
- rec->pattern = g_strdup(config_node_get_str(node, "pattern", NULL));
- rec->level = level2bits(config_node_get_str(node, "level", ""));
- rec->exception = config_node_get_bool(node, "exception", FALSE);
- rec->regexp = config_node_get_bool(node, "regexp", FALSE);
- rec->fullword = config_node_get_bool(node, "fullword", FALSE);
- rec->replies = config_node_get_bool(node, "replies", FALSE);
- rec->unignore_time = config_node_get_int(node, "unignore_time", 0);
- rec->servertag = g_strdup(config_node_get_str(node, "servertag", 0));
-
- node = config_node_section(node, "channels", -1);
- if (node != NULL) rec->channels = config_node_get_list(node);
-
- ignore_init_rec(rec);
- }
-
- nickmatch_rebuild(nickmatch);
-}
-
-static void ignore_nick_cache(GHashTable *list, CHANNEL_REC *channel,
- NICK_REC *nick)
-{
- GSList *tmp, *matches;
- char *nickmask;
-
- if (nick->host == NULL)
- return; /* don't check until host is known */
-
- matches = NULL;
- nickmask = g_strconcat(nick->nick, "!", nick->host, NULL);
- for (tmp = ignores; tmp != NULL; tmp = tmp->next) {
- IGNORE_REC *rec = tmp->data;
-
- if (ignore_match_nickmask(rec, nick->nick, nickmask) &&
- ignore_match_server(rec, channel->server) &&
- ignore_match_channel(rec, channel->name))
- matches = g_slist_append(matches, rec);
- }
- g_free_not_null(nickmask);
-
- if (matches == NULL)
- g_hash_table_remove(list, nick);
- else
- g_hash_table_insert(list, nick, matches);
-}
-
-void ignore_init(void)
-{
- ignores = NULL;
- nickmatch = nickmatch_init(ignore_nick_cache);
- time_tag = g_timeout_add(1000, (GSourceFunc) unignore_timeout, NULL);
-
- read_ignores();
- signal_add("setup reread", (SIGNAL_FUNC) read_ignores);
-}
-
-void ignore_deinit(void)
-{
- g_source_remove(time_tag);
- while (ignores != NULL)
- ignore_destroy(ignores->data, TRUE);
- nickmatch_deinit(nickmatch);
-
- signal_remove("setup reread", (SIGNAL_FUNC) read_ignores);
-}
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