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|
/*
expandos.c : irssi
Copyright (C) 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
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "core.h"
#include "module.h"
#include "modules.h"
#include "signals.h"
#include "expandos.h"
#include "settings.h"
#include "commands.h"
#include "misc.h"
#include "irssi-version.h"
#include "servers.h"
#include "channels.h"
#include "queries.h"
#include "window-item-def.h"
#ifdef HAVE_SYS_UTSNAME_H
# include <sys/utsname.h>
#endif
#define MAX_EXPANDO_SIGNALS 10
typedef struct {
EXPANDO_FUNC func;
int signals;
int signal_ids[MAX_EXPANDO_SIGNALS];
int signal_args[MAX_EXPANDO_SIGNALS];
} EXPANDO_REC;
const char *current_expando = NULL;
static int timer_tag;
static EXPANDO_REC *char_expandos[255];
static GHashTable *expandos;
static char *last_sent_msg, *last_sent_msg_body;
static char *last_privmsg_from, *last_public_from;
static char *sysname, *sysrelease, *sysarch;
static const char *timestamp_format;
static int timestamp_seconds;
static time_t last_timestamp;
#define CHAR_EXPANDO(chr) \
(char_expandos[(int) (unsigned char) chr])
/* Create expando - overrides any existing ones. */
void expando_create(const char *key, EXPANDO_FUNC func, ...)
{
EXPANDO_REC *rec;
const char *signal;
va_list va;
g_return_if_fail(key != NULL || *key == '\0');
g_return_if_fail(func != NULL);
if (key[1] != '\0')
rec = g_hash_table_lookup(expandos, key);
else {
/* single character expando */
rec = CHAR_EXPANDO(*key);
}
if (rec != NULL)
rec->signals = 0;
else {
rec = g_new0(EXPANDO_REC, 1);
if (key[1] != '\0')
g_hash_table_insert(expandos, g_strdup(key), rec);
else
char_expandos[(int) (unsigned char) *key] = rec;
}
rec->func = func;
va_start(va, func);
while ((signal = (const char *) va_arg(va, const char *)) != NULL)
expando_add_signal(key, signal, (int) va_arg(va, int));
va_end(va);
}
static EXPANDO_REC *expando_find(const char *key)
{
if (key[1] != '\0')
return g_hash_table_lookup(expandos, key);
else
return CHAR_EXPANDO(*key);
}
/* Add new signal to expando */
void expando_add_signal(const char *key, const char *signal, ExpandoArg arg)
{
EXPANDO_REC *rec;
g_return_if_fail(key != NULL);
g_return_if_fail(signal != NULL);
rec = expando_find(key);
g_return_if_fail(rec != NULL);
if (arg == EXPANDO_NEVER) {
/* expando changes never */
rec->signals = -1;
} else if (rec->signals < MAX_EXPANDO_SIGNALS) {
g_return_if_fail(rec->signals != -1);
rec->signal_ids[rec->signals] = signal_get_uniq_id(signal);
rec->signal_args[rec->signals] = arg;
rec->signals++;
}
}
/* Destroy expando */
void expando_destroy(const char *key, EXPANDO_FUNC func)
{
gpointer origkey, value;
EXPANDO_REC *rec;
g_return_if_fail(key != NULL || *key == '\0');
g_return_if_fail(func != NULL);
if (key[1] == '\0') {
/* single character expando */
rec = CHAR_EXPANDO(*key);
if (rec != NULL && rec->func == func) {
char_expandos[(int) (unsigned char) *key] = NULL;
g_free(rec);
}
} else if (g_hash_table_lookup_extended(expandos, key,
&origkey, &value)) {
rec = value;
if (rec->func == func) {
g_hash_table_remove(expandos, key);
g_free(origkey);
g_free(rec);
}
}
}
void expando_bind(const char *key, int funccount, SIGNAL_FUNC *funcs)
{
SIGNAL_FUNC func;
EXPANDO_REC *rec;
int n, arg;
g_return_if_fail(key != NULL);
g_return_if_fail(funccount >= 1);
g_return_if_fail(funcs != NULL);
g_return_if_fail(funcs[0] != NULL);
rec = expando_find(key);
g_return_if_fail(rec != NULL);
if (rec->signals == 0) {
/* it's unknown when this expando changes..
check it once in a second */
signal_add("expando timer", funcs[EXPANDO_ARG_NONE]);
}
for (n = 0; n < rec->signals; n++) {
arg = rec->signal_args[n];
func = arg < funccount ? funcs[arg] : NULL;
if (func == NULL) func = funcs[EXPANDO_ARG_NONE];
signal_add_full_id(MODULE_NAME, SIGNAL_PRIORITY_DEFAULT,
rec->signal_ids[n], func, NULL);
}
}
void expando_unbind(const char *key, int funccount, SIGNAL_FUNC *funcs)
{
SIGNAL_FUNC func;
EXPANDO_REC *rec;
int n, arg;
g_return_if_fail(key != NULL);
g_return_if_fail(funccount >= 1);
g_return_if_fail(funcs != NULL);
g_return_if_fail(funcs[0] != NULL);
rec = expando_find(key);
g_return_if_fail(rec != NULL);
if (rec->signals == 0) {
/* it's unknown when this expando changes..
check it once in a second */
signal_remove("expando timer", funcs[EXPANDO_ARG_NONE]);
}
for (n = 0; n < rec->signals; n++) {
arg = rec->signal_args[n];
func = arg < funccount ? funcs[arg] : NULL;
if (func == NULL) func = funcs[EXPANDO_ARG_NONE];
signal_remove_id(rec->signal_ids[n], func, NULL);
}
}
/* Returns [<signal id>, EXPANDO_ARG_xxx, <signal id>, ..., -1] */
int *expando_get_signals(const char *key)
{
EXPANDO_REC *rec;
int *signals;
int n;
g_return_val_if_fail(key != NULL, NULL);
rec = expando_find(key);
if (rec == NULL || rec->signals < 0)
return NULL;
if (rec->signals == 0) {
/* it's unknown when this expando changes..
check it once in a second */
signals = g_new(int, 3);
signals[0] = signal_get_uniq_id("expando timer");
signals[1] = EXPANDO_ARG_NONE;
signals[2] = -1;
return signals;
}
signals = g_new(int, rec->signals*2+1);
for (n = 0; n < rec->signals; n++) {
signals[n*2] = rec->signal_ids[n];
signals[n*2+1] = rec->signal_args[n];
}
signals[rec->signals*2] = -1;
return signals;
}
EXPANDO_FUNC expando_find_char(char chr)
{
return CHAR_EXPANDO(chr) == NULL ? NULL :
CHAR_EXPANDO(chr)->func;
}
EXPANDO_FUNC expando_find_long(const char *key)
{
EXPANDO_REC *rec = g_hash_table_lookup(expandos, key);
return rec == NULL ? NULL : rec->func;
}
static gboolean free_expando(gpointer key, gpointer value, gpointer user_data)
{
g_free(key);
g_free(value);
return TRUE;
}
/* last person who sent you a MSG */
static char *expando_lastmsg(SERVER_REC *server, void *item, int *free_ret)
{
return last_privmsg_from;
}
/* last person to whom you sent a MSG */
static char *expando_lastmymsg(SERVER_REC *server, void *item, int *free_ret)
{
return last_sent_msg;
}
/* last person to send a public message to a channel you are on */
static char *expando_lastpublic(SERVER_REC *server, void *item, int *free_ret)
{
return last_public_from;
}
/* text of your AWAY message, if any */
static char *expando_awaymsg(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL ? "" : server->away_reason;
}
/* body of last MSG you sent */
static char *expando_lastmymsg_body(SERVER_REC *server, void *item, int *free_ret)
{
return last_sent_msg_body;
}
/* current channel */
static char *expando_channel(SERVER_REC *server, void *item, int *free_ret)
{
return !IS_CHANNEL(item) ? NULL : CHANNEL(item)->name;
}
/* time client was started, $time() format */
static char *expando_clientstarted(SERVER_REC *server, void *item, int *free_ret)
{
*free_ret = TRUE;
return g_strdup_printf("%ld", (long) client_start_time);
}
/* channel you were last INVITEd to */
static char *expando_last_invite(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL ? "" : server->last_invite;
}
/* client version text string */
static char *expando_version(SERVER_REC *server, void *item, int *free_ret)
{
return IRSSI_VERSION;
}
/* current value of CMDCHARS */
static char *expando_cmdchars(SERVER_REC *server, void *item, int *free_ret)
{
return (char *) settings_get_str("cmdchars");
}
/* first CMDCHAR */
static char *expando_cmdchar(SERVER_REC *server, void *item, int *free_ret)
{
char str[2] = { 0, 0 };
str[0] = *settings_get_str("cmdchars");
*free_ret = TRUE;
return g_strdup(str);
}
/* modes of current channel, if any */
static char *expando_chanmode(SERVER_REC *server, void *item, int *free_ret)
{
char *cmode;
*free_ret = FALSE;
if (!IS_CHANNEL(item))
return NULL;
if (!settings_get_bool("chanmode_expando_strip"))
return CHANNEL(item)->mode;
*free_ret = TRUE;
cmode = g_strdup(CHANNEL(item)->mode);
if (strchr(cmode, ' ') != NULL)
*(strchr(cmode, ' ')) = 0;
return cmode;
}
/* current nickname */
static char *expando_nick(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL ? "" : server->nick;
}
/* value of STATUS_OPER if you are an irc operator */
static char *expando_statusoper(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL || !server->server_operator ? "" :
(char *) settings_get_str("STATUS_OPER");
}
/* if you are a channel operator in $C, expands to a '@' */
static char *expando_chanop(SERVER_REC *server, void *item, int *free_ret)
{
return IS_CHANNEL(item) && CHANNEL(item)->chanop ? "@" : "";
}
/* nickname of whomever you are QUERYing */
static char *expando_query(SERVER_REC *server, void *item, int *free_ret)
{
return !IS_QUERY(item) ? "" : QUERY(item)->name;
}
/* version of current server */
static char *expando_serverversion(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL ? "" : server->version;
}
/* target of current input (channel or QUERY nickname) */
static char *expando_target(SERVER_REC *server, void *item, int *free_ret)
{
return item == NULL ? "" :
(char *) window_item_get_target((WI_ITEM_REC *) item);
}
/* client release date (in YYYYMMDD format) */
static char *expando_releasedate(SERVER_REC *server, void *item, int *free_ret)
{
*free_ret = TRUE;
return g_strdup_printf("%d", IRSSI_VERSION_DATE);
}
/* client release time (in HHMM format) */
static char *expando_releasetime(SERVER_REC *server, void *item, int *free_ret)
{
*free_ret = TRUE;
return g_strdup_printf("%04d", IRSSI_VERSION_TIME);
}
/* current working directory */
static char *expando_workdir(SERVER_REC *server, void *item, int *free_ret)
{
*free_ret = TRUE;
return g_get_current_dir();
}
/* value of REALNAME */
static char *expando_realname(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL ? "" : server->connrec->realname;
}
/* time of day (hh:mm) */
static char *expando_time(SERVER_REC *server, void *item, int *free_ret)
{
time_t now;
struct tm *tm;
char str[256];
now = time(NULL);
tm = localtime(&now);
if (strftime(str, sizeof(str), timestamp_format, tm) == 0)
return "";
*free_ret = TRUE;
return g_strdup(str);
}
/* a literal '$' */
static char *expando_dollar(SERVER_REC *server, void *item, int *free_ret)
{
return "$";
}
/* system name */
static char *expando_sysname(SERVER_REC *server, void *item, int *free_ret)
{
return sysname;
}
/* system release */
static char *expando_sysrelease(SERVER_REC *server, void *item, int *free_ret)
{
return sysrelease;
}
/* system architecture */
static char *expando_sysarch(SERVER_REC *server, void *item, int *free_ret)
{
return sysarch;
}
/* Topic of active channel (or address of queried nick) */
static char *expando_topic(SERVER_REC *server, void *item, int *free_ret)
{
if (IS_CHANNEL(item))
return CHANNEL(item)->topic;
if (IS_QUERY(item)) {
QUERY_REC *query = QUERY(item);
if (query->server_tag == NULL)
return "";
*free_ret = TRUE;
return query->address == NULL ?
g_strdup_printf("(%s)", query->server_tag) :
g_strdup_printf("%s (%s)", query->address,
query->server_tag);
}
return "";
}
/* Server tag */
static char *expando_servertag(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL ? "" : server->tag;
}
/* Server chatnet */
static char *expando_chatnet(SERVER_REC *server, void *item, int *free_ret)
{
return server == NULL ? "" : server->connrec->chatnet;
}
/* visible_name of current window item */
static char *expando_itemname(SERVER_REC *server, void *item, int *free_ret)
{
return item == NULL ? "" : ((WI_ITEM_REC *) item)->visible_name;
}
static void sig_message_public(SERVER_REC *server, const char *msg,
const char *nick, const char *address,
const char *target)
{
g_free_not_null(last_public_from);
last_public_from = g_strdup(nick);
}
static void sig_message_private(SERVER_REC *server, const char *msg,
const char *nick, const char *address)
{
g_free_not_null(last_privmsg_from);
last_privmsg_from = g_strdup(nick);
}
static void sig_message_own_private(SERVER_REC *server, const char *msg,
const char *target, const char *origtarget)
{
g_return_if_fail(server != NULL);
g_return_if_fail(msg != NULL);
if (target != NULL) {
if (target != last_sent_msg) {
g_free_not_null(last_sent_msg);
last_sent_msg = g_strdup(target);
}
g_free_not_null(last_sent_msg_body);
last_sent_msg_body = g_strdup(msg);
}
}
static int sig_timer(void)
{
time_t now;
struct tm *tm;
int last_min;
signal_emit("expando timer", 0);
/* check if $Z has changed */
now = time(NULL);
if (last_timestamp != now) {
if (!timestamp_seconds && last_timestamp != 0) {
/* assume it changes every minute */
tm = localtime(&last_timestamp);
last_min = tm->tm_min;
tm = localtime(&now);
if (tm->tm_min == last_min)
return 1;
}
signal_emit("time changed", 0);
last_timestamp = now;
}
return 1;
}
static void read_settings(void)
{
timestamp_format = settings_get_str("timestamp_format");
timestamp_seconds =
strstr(timestamp_format, "%r") != NULL ||
strstr(timestamp_format, "%s") != NULL ||
strstr(timestamp_format, "%S") != NULL ||
strstr(timestamp_format, "%X") != NULL ||
strstr(timestamp_format, "%T") != NULL;
}
void expandos_init(void)
{
#ifdef HAVE_SYS_UTSNAME_H
struct utsname un;
#endif
settings_add_str("misc", "STATUS_OPER", "*");
settings_add_str("lookandfeel", "timestamp_format", "%H:%M");
settings_add_bool("lookandfeel", "chanmode_expando_strip", FALSE);
last_sent_msg = NULL; last_sent_msg_body = NULL;
last_privmsg_from = NULL; last_public_from = NULL;
last_timestamp = 0;
sysname = sysrelease = sysarch = NULL;
#ifdef HAVE_SYS_UTSNAME_H
if (uname(&un) >= 0) {
sysname = g_strdup(un.sysname);
sysrelease = g_strdup(un.release);
sysarch = g_strdup(un.machine);
}
#endif
memset(char_expandos, 0, sizeof(char_expandos));
expandos = g_hash_table_new((GHashFunc) g_str_hash,
(GCompareFunc) g_str_equal);
expando_create(",", expando_lastmsg,
"message private", EXPANDO_ARG_SERVER, NULL);
expando_create(".", expando_lastmymsg,
"command msg", EXPANDO_ARG_NONE, NULL);
expando_create(";", expando_lastpublic,
"message public", EXPANDO_ARG_SERVER, NULL);
expando_create("A", expando_awaymsg,
"away mode changed", EXPANDO_ARG_NONE, NULL);
expando_create("B", expando_lastmymsg_body,
"command msg", EXPANDO_ARG_NONE, NULL);
expando_create("C", expando_channel,
"window changed", EXPANDO_ARG_NONE,
"window item changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("F", expando_clientstarted,
"", EXPANDO_NEVER, NULL);
expando_create("I", expando_last_invite, NULL);
expando_create("J", expando_version,
"", EXPANDO_NEVER, NULL);
expando_create("K", expando_cmdchars,
"setup changed", EXPANDO_ARG_NONE, NULL);
expando_create("k", expando_cmdchar,
"setup changed", EXPANDO_ARG_NONE, NULL);
expando_create("M", expando_chanmode,
"window changed", EXPANDO_ARG_NONE,
"window item changed", EXPANDO_ARG_WINDOW,
"channel mode changed", EXPANDO_ARG_WINDOW_ITEM, NULL);
expando_create("N", expando_nick,
"window changed", EXPANDO_ARG_NONE,
"window connect changed", EXPANDO_ARG_WINDOW,
"window server changed", EXPANDO_ARG_WINDOW,
"server nick changed", EXPANDO_ARG_SERVER, NULL);
expando_create("O", expando_statusoper,
"setup changed", EXPANDO_ARG_NONE,
"window changed", EXPANDO_ARG_NONE,
"window server changed", EXPANDO_ARG_WINDOW,
"user mode changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("P", expando_chanop,
"window changed", EXPANDO_ARG_NONE,
"window item changed", EXPANDO_ARG_WINDOW,
"nick mode changed", EXPANDO_ARG_WINDOW_ITEM, NULL);
expando_create("Q", expando_query,
"window changed", EXPANDO_ARG_NONE,
"window item changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("R", expando_serverversion,
"window changed", EXPANDO_ARG_NONE,
"window server changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("T", expando_target,
"window changed", EXPANDO_ARG_NONE,
"window item changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("V", expando_releasedate,
"", EXPANDO_NEVER, NULL);
expando_create("versiontime", expando_releasetime,
"", EXPANDO_NEVER, NULL);
expando_create("W", expando_workdir, NULL);
expando_create("Y", expando_realname,
"window changed", EXPANDO_ARG_NONE,
"window connect changed", EXPANDO_ARG_WINDOW,
"window server changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("Z", expando_time,
"time changed", EXPANDO_ARG_NONE, NULL);
expando_create("$", expando_dollar,
"", EXPANDO_NEVER, NULL);
expando_create("sysname", expando_sysname,
"", EXPANDO_NEVER, NULL);
expando_create("sysrelease", expando_sysrelease,
"", EXPANDO_NEVER, NULL);
expando_create("sysarch", expando_sysarch,
"", EXPANDO_NEVER, NULL);
expando_create("topic", expando_topic,
"window changed", EXPANDO_ARG_NONE,
"window item changed", EXPANDO_ARG_WINDOW,
"channel topic changed", EXPANDO_ARG_WINDOW_ITEM,
"query address changed", EXPANDO_ARG_WINDOW_ITEM, NULL);
expando_create("tag", expando_servertag,
"window changed", EXPANDO_ARG_NONE,
"window connect changed", EXPANDO_ARG_WINDOW,
"window server changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("chatnet", expando_chatnet,
"window changed", EXPANDO_ARG_NONE,
"window connect changed", EXPANDO_ARG_WINDOW,
"window server changed", EXPANDO_ARG_WINDOW, NULL);
expando_create("itemname", expando_itemname,
"window changed", EXPANDO_ARG_NONE,
"window item changed", EXPANDO_ARG_WINDOW,
"window item name changed", EXPANDO_ARG_WINDOW_ITEM,
NULL);
read_settings();
timer_tag = g_timeout_add(500, (GSourceFunc) sig_timer, NULL);
signal_add("message public", (SIGNAL_FUNC) sig_message_public);
signal_add("message private", (SIGNAL_FUNC) sig_message_private);
signal_add("message own_private", (SIGNAL_FUNC) sig_message_own_private);
signal_add_first("setup changed", (SIGNAL_FUNC) read_settings);
}
void expandos_deinit(void)
{
int n;
for (n = 0; n < sizeof(char_expandos)/sizeof(char_expandos[0]); n++)
g_free_not_null(char_expandos[n]);
g_hash_table_foreach_remove(expandos, free_expando, NULL);
g_hash_table_destroy(expandos);
g_free_not_null(last_sent_msg); g_free_not_null(last_sent_msg_body);
g_free_not_null(last_privmsg_from); g_free_not_null(last_public_from);
g_free_not_null(sysname); g_free_not_null(sysrelease);
g_free_not_null(sysarch);
g_source_remove(timer_tag);
signal_remove("message public", (SIGNAL_FUNC) sig_message_public);
signal_remove("message private", (SIGNAL_FUNC) sig_message_private);
signal_remove("message own_private", (SIGNAL_FUNC) sig_message_own_private);
signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
}
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