Personal copy of mcabber
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/*
* hooks.c -- Hooks layer
*
* Copyright (C) 2005-2010 Mikael Berthe <mikael@lilotux.net>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <loudmouth/loudmouth.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "hooks.h"
#include "screen.h"
#include "roster.h"
#include "histolog.h"
#include "hbuf.h"
#include "settings.h"
#include "utils.h"
#include "utf8.h"
#include "commands.h"
#include "main.h"
static char *extcmd;
static const char *COMMAND_ME = "/me ";
void hk_message_in(const char *bjid, const char *resname,
time_t timestamp, const char *msg, LmMessageSubType type,
guint encrypted, gboolean carbon)
{
int new_guy = FALSE;
int is_groupchat = FALSE; // groupchat message
int is_room = FALSE; // window is a room window
int log_muc_conf = FALSE;
int active_window = FALSE;
int message_flags = 0;
guint rtype = ROSTER_TYPE_USER;
char *wmsg = NULL, *bmsg = NULL, *mmsg = NULL;
GSList *roster_usr;
unsigned mucnicklen = 0;
const char *ename = NULL;
gboolean attention = FALSE, mucprivmsg = FALSE;
gboolean error_msg_subtype = (type == LM_MESSAGE_SUB_TYPE_ERROR);
if (encrypted == ENCRYPTED_PGP)
message_flags |= HBB_PREFIX_PGPCRYPT;
else if (encrypted == ENCRYPTED_OTR)
message_flags |= HBB_PREFIX_OTRCRYPT;
if (carbon)
message_flags |= HBB_PREFIX_CARBON;
if (type == LM_MESSAGE_SUB_TYPE_GROUPCHAT) {
rtype = ROSTER_TYPE_ROOM;
is_groupchat = TRUE;
log_muc_conf = settings_opt_get_int("log_muc_conf");
if (!resname) {
message_flags = HBB_PREFIX_INFO | HBB_PREFIX_NOFLAG;
resname = "";
wmsg = bmsg = g_strdup_printf("~ %s", msg);
} else {
wmsg = bmsg = g_strdup_printf("<%s> %s", resname, msg);
mucnicklen = strlen(resname) + 2;
if (!strncmp(msg, COMMAND_ME, strlen(COMMAND_ME)))
wmsg = mmsg = g_strdup_printf("*%s %s", resname, msg+4);
}
} else {
bmsg = g_strdup(msg);
if (!strncmp(msg, COMMAND_ME, strlen(COMMAND_ME))) {
gchar *shortid = g_strdup(bjid);
if (settings_opt_get_int("buddy_me_fulljid") == FALSE) {
gchar *p = strchr(shortid, '@'); // Truncate the jid
if (p)
*p = '\0';
}
wmsg = mmsg = g_strdup_printf("*%s %s", shortid, msg+4);
g_free(shortid);
} else
wmsg = (char*) msg;
}
// If this user isn't in the roster, we add it
roster_usr = roster_find(bjid, jidsearch, 0);
if (!roster_usr) {
new_guy = TRUE;
roster_usr = roster_add_user(bjid, NULL, NULL, rtype, sub_none, -1);
if (!roster_usr) { // Shouldn't happen...
scr_LogPrint(LPRINT_LOGNORM, "ERROR: unable to add buddy!");
g_free(bmsg);
g_free(mmsg);
return;
}
} else if (is_groupchat) {
// Make sure the type is ROOM
buddy_settype(roster_usr->data, ROSTER_TYPE_ROOM);
}
is_room = !!(buddy_gettype(roster_usr->data) & ROSTER_TYPE_ROOM);
if (is_room) {
if (!is_groupchat) {
// This is a private message from a room participant
g_free(bmsg);
if (!resname) {
resname = "";
wmsg = bmsg = g_strdup(msg);
} else {
wmsg = bmsg = g_strdup_printf("PRIV#<%s> %s", resname, msg);
if (!strncmp(msg, COMMAND_ME, strlen(COMMAND_ME))) {
g_free(mmsg);
wmsg = mmsg = g_strdup_printf("PRIV#*%s %s", resname, msg+4);
}
mucprivmsg = TRUE;
}
message_flags |= HBB_PREFIX_HLIGHT;
} else {
// This is a regular chatroom message.
const char *nick = buddy_getnickname(roster_usr->data);
if (nick) {
// Let's see if we are the message sender, in which case we'll
// highlight it.
if (resname && !strcmp(resname, nick)) {
message_flags |= HBB_PREFIX_HLIGHT_OUT;
} else {
// We're not the sender. Can we see our nick?
const char *msgptr = msg;
while ((msgptr = strcasestr(msgptr, nick)) != NULL) {
const char *leftb, *rightb;
// The message contains our nick. Let's check it's not
// in the middle of another word (i.e. preceded/followed
// immediately by an alphanumeric character or an underscore.
rightb = msgptr+strlen(nick);
if (msgptr == msg)
leftb = NULL;
else
leftb = prev_char((char*)msgptr, msg);
msgptr = next_char((char*)msgptr);
// Check left boundary
if (leftb && (iswalnum(get_char(leftb)) || get_char(leftb) == '_'))
continue;
// Check right boundary
if (!iswalnum(get_char(rightb)) && get_char(rightb) != '_')
attention = TRUE;
if (attention && !settings_opt_get_int("muc_disable_nick_hl"))
message_flags |= HBB_PREFIX_HLIGHT;
}
}
}
}
} else if (settings_opt_get_int("roster_autolock_resource")) {
buddy_setactiveresource(roster_usr->data, resname);
scr_update_chat_status(FALSE);
}
if (error_msg_subtype) {
message_flags = HBB_PREFIX_ERR | HBB_PREFIX_IN;
scr_LogPrint(LPRINT_LOGNORM, "Error message received from <%s>", bjid);
}
// Note: the hlog_write should not be called first, because in some
// cases scr_write_incoming_message() will load the history and we'd
// have the message twice...
scr_write_incoming_message(bjid, wmsg, timestamp, message_flags, mucnicklen);
// Set urgent (a.k.a. "attention") flag
{
guint uip;
if (is_groupchat) {
if (attention) uip = ROSTER_UI_PRIO_MUC_HL_MESSAGE;
else uip = ROSTER_UI_PRIO_MUC_MESSAGE;
} else {
if (mucprivmsg) uip = ROSTER_UI_PRIO_MUC_PRIV_MESSAGE;
else if (attention) uip = ROSTER_UI_PRIO_ATTENTION_MESSAGE;
else uip = ROSTER_UI_PRIO_PRIVATE_MESSAGE;
}
scr_setattentionflag_if_needed(bjid, FALSE, uip, prio_max);
}
// We don't log the modified message, but the original one
if (wmsg == mmsg)
wmsg = bmsg;
// - We don't log the message if it is an error message
// - We don't log the message if it is a private conf. message
// - We don't log the message if it is groupchat message and the log_muc_conf
// option is off (and it is not a history line)
if (!(message_flags & HBB_PREFIX_ERR) &&
(!is_room || (is_groupchat && log_muc_conf && !timestamp)))
hlog_write_message(bjid, timestamp, 0, wmsg);
if (settings_opt_get_int("events_ignore_active_window") &&
current_buddy && scr_get_chatmode()) {
gpointer bud = BUDDATA(current_buddy);
if (bud) {
const char *cjid = buddy_getjid(bud);
if (cjid && !strcasecmp(cjid, bjid))
active_window = TRUE;
}
}
if (settings_opt_get_int("eventcmd_use_nickname"))
ename = roster_getname(bjid);
// Display the sender in the log window
if ((!is_groupchat) && !(message_flags & HBB_PREFIX_ERR) &&
settings_opt_get_int("log_display_sender")) {
const char *name = roster_getname(bjid);
if (!name) name = "";
scr_LogPrint(LPRINT_NORMAL, "Message received from %s <%s/%s>",
name, bjid, (resname ? resname : ""));
}
// External command
// - We do not call hk_ext_cmd() for history lines in MUC
// - We do call hk_ext_cmd() for private messages in a room
// - We do call hk_ext_cmd() for messages to the current window
if (!active_window && ((is_groupchat && !timestamp) || !is_groupchat))
hk_ext_cmd(ename ? ename : bjid, (is_groupchat ? 'G' : 'M'), 'R', wmsg);
// Beep, if enabled:
// - if it's a private message
// - if it's a public message and it's highlighted
if (settings_opt_get_int("beep_on_message")) {
if ((!is_groupchat && !(message_flags & HBB_PREFIX_ERR)) ||
(is_groupchat && (message_flags & HBB_PREFIX_HLIGHT)))
scr_beep();
}
// We need to update the roster if the sender is unknown or
// if the sender is offline/invisible and a filter is set.
if (new_guy ||
(buddy_getstatus(roster_usr->data, NULL) == offline &&
buddylist_isset_filter()))
{
scr_update_roster();
}
g_free(bmsg);
g_free(mmsg);
}
// hk_message_out()
// nick should be set for private messages in a chat room, and null for
// normal messages.
void hk_message_out(const char *bjid, const char *nick,
time_t timestamp, const char *msg,
guint encrypted, gboolean carbon, gpointer xep184)
{
char *wmsg = NULL, *bmsg = NULL, *mmsg = NULL;
guint message_flags = 0;
if (nick) {
wmsg = bmsg = g_strdup_printf("PRIV#<%s> %s", nick, msg);
if (!strncmp(msg, COMMAND_ME, strlen(COMMAND_ME))) {
const char *mynick = roster_getnickname(bjid);
wmsg = mmsg = g_strdup_printf("PRIV#<%s> *%s %s", nick,
(mynick ? mynick : "me"), msg+4);
}
} else {
wmsg = (char*)msg;
if (!strncmp(msg, COMMAND_ME, strlen(COMMAND_ME))) {
char *myid = jid_get_username(settings_opt_get("jid"));
if (myid) {
wmsg = mmsg = g_strdup_printf("*%s %s", myid, msg+4);
g_free(myid);
}
}
}
// Note: the hlog_write should not be called first, because in some
// cases scr_write_outgoing_message() will load the history and we'd
// have the message twice...
if (encrypted == ENCRYPTED_PGP)
message_flags |= HBB_PREFIX_PGPCRYPT;
else if (encrypted == ENCRYPTED_OTR)
message_flags |= HBB_PREFIX_OTRCRYPT;
if (carbon)
message_flags |= HBB_PREFIX_CARBON | HBB_PREFIX_NOFLAG;
scr_write_outgoing_message(bjid, wmsg, message_flags, xep184);
// We don't log private messages
if (!nick)
hlog_write_message(bjid, timestamp, 1, msg);
// External command
hk_ext_cmd(bjid, 'M', 'S', NULL);
g_free(bmsg);
g_free(mmsg);
}
void hk_statuschange(const char *bjid, const char *resname, gchar prio,
time_t timestamp, enum imstatus status,
const char *status_msg)
{
int st_in_buf;
enum imstatus oldstat;
char *bn;
char *logsmsg;
const char *rn = (resname ? resname : "");
const char *ename = NULL;
if (settings_opt_get_int("eventcmd_use_nickname"))
ename = roster_getname(bjid);
oldstat = roster_getstatus(bjid, resname);
st_in_buf = settings_opt_get_int("show_status_in_buffer");
if (settings_opt_get_int("log_display_presence")) {
int buddy_format = settings_opt_get_int("buddy_format");
bn = NULL;
if (buddy_format) {
const char *name = roster_getname(bjid);
if (name && strcmp(name, bjid)) {
if (buddy_format == 1)
bn = g_strdup_printf("%s <%s/%s>", name, bjid, rn);
else if (buddy_format == 2)
bn = g_strdup_printf("%s/%s", name, rn);
else if (buddy_format == 3)
bn = g_strdup_printf("%s", name);
}
}
if (!bn)
bn = g_strdup_printf("<%s/%s>", bjid, rn);
logsmsg = g_strdup(status_msg ? status_msg : "");
replace_nl_with_dots(logsmsg);
scr_LogPrint(LPRINT_LOGNORM, "Buddy status has changed: [%c>%c] %s %s",
imstatus2char[oldstat], imstatus2char[status], bn, logsmsg);
g_free(logsmsg);
g_free(bn);
}
if (st_in_buf == 2 ||
(st_in_buf == 1 && (status == offline || oldstat == offline))) {
// Write the status change in the buddy's buffer, only if it already exists
if (scr_buddy_buffer_exists(bjid)) {
bn = g_strdup_printf("Buddy status has changed: [%c>%c] [%s] %s",
imstatus2char[oldstat], imstatus2char[status], rn,
((status_msg) ? status_msg : ""));
scr_write_incoming_message(bjid, bn, timestamp,
HBB_PREFIX_INFO|HBB_PREFIX_NOFLAG, 0);
g_free(bn);
}
}
roster_setstatus(bjid, rn, prio, status, status_msg, timestamp,
role_none, affil_none, NULL);
buddylist_defer_build();
scr_update_roster();
hlog_write_status(bjid, timestamp, status, status_msg);
// External command
hk_ext_cmd(ename ? ename : bjid, 'S', imstatus2char[status], NULL);
}
void hk_mystatuschange(time_t timestamp, enum imstatus old_status,
enum imstatus new_status, const char *msg)
{
scr_LogPrint(LPRINT_LOGNORM, "Your status has been set: [%c>%c] %s",
imstatus2char[old_status], imstatus2char[new_status],
(msg ? msg : ""));
//hlog_write_status(NULL, 0, status);
}
void hk_postconnect(void)
{
const char *hook_command;
char *cmdline;
hook_command = settings_opt_get("hook-post-connect");
if (!hook_command)
return;
scr_LogPrint(LPRINT_LOGNORM, "Running hook-post-connect...");
cmdline = from_utf8(hook_command);
process_command(cmdline, TRUE);
g_free(cmdline);
}
void hk_predisconnect(void)
{
const char *hook_command;
char *cmdline;
hook_command = settings_opt_get("hook-pre-disconnect");
if (!hook_command)
return;
scr_LogPrint(LPRINT_LOGNORM, "Running hook-pre-disconnect...");
cmdline = from_utf8(hook_command);
process_command(cmdline, TRUE);
g_free(cmdline);
}
void hk_unread_list_change(guint unread_count, guint attention_count,
guint muc_unread, guint muc_attention)
{
// Previous static variables are initialized with an unlikely value
static guint prev_unread = 65535;
static guint prev_attention = 65535;
static guint prev_muc_unread = 65535;
static guint prev_muc_attention = 65535;
gchar *str_unread;
// Do not call the handlers if the unread values haven't changed
if (unread_count == prev_unread &&
attention_count == prev_attention &&
muc_unread == prev_muc_unread &&
muc_attention == prev_muc_attention)
return;
prev_unread = unread_count;
prev_attention = attention_count;
prev_muc_unread = muc_unread;
prev_muc_attention = muc_attention;
/* Call external command */
str_unread = g_strdup_printf("%u %u %u %u", unread_count, attention_count,
muc_unread, muc_attention);
hk_ext_cmd("", 'U', (guchar)MIN(255, unread_count), str_unread);
g_free(str_unread);
}
// hk_presence_subscription_request(jid, message)
// Return non-zero if mcabber should stop processing the subscription request
guint hk_subscription(LmMessageSubType mstype, const gchar *bjid,
const gchar *msg)
{
return 0;
}
/* External commands */
// hk_ext_cmd_init()
// Initialize external command variable.
// Can be called with parameter NULL to reset and free memory.
void hk_ext_cmd_init(const char *command)
{
if (extcmd) {
g_free(extcmd);
extcmd = NULL;
}
if (command)
extcmd = expand_filename(command);
}
// hk_ext_cmd()
// Launch an external command (process) for the given event.
// For now, data should be NULL.
void hk_ext_cmd(const char *bjid, guchar type, guchar info, const char *data)
{
pid_t pid;
const char *arg_type = NULL;
const char *arg_info = NULL;
const char *arg_data = NULL;
char status_str[2];
char *datafname = NULL;
if (!extcmd) return;
// Prepare arg_* (external command parameters)
switch (type) {
case 'M': /* Normal message */
arg_type = "MSG";
if (info == 'R')
arg_info = "IN";
else if (info == 'S')
arg_info = "OUT";
break;
case 'G': /* Groupchat message */
arg_type = "MSG";
arg_info = "MUC";
break;
case 'S': /* Status change */
arg_type = "STATUS";
if (strchr(imstatus2char, tolower(info))) {
status_str[0] = toupper(info);
status_str[1] = 0;
arg_info = status_str;
}
break;
case 'U': /* Unread buffer count */
arg_type = "UNREAD";
arg_info = data;
break;
default:
return;
}
if (!arg_type || !arg_info) return;
if (strchr("MG", type) && data && settings_opt_get_int("event_log_files")) {
int fd;
const char *prefix;
char *prefix_xp = NULL;
char *data_locale;
data_locale = from_utf8(data);
prefix = settings_opt_get("event_log_dir");
if (prefix)
prefix = prefix_xp = expand_filename(prefix);
else
prefix = ut_get_tmpdir();
datafname = g_strdup_printf("%s/mcabber-%d.XXXXXX", prefix, getpid());
g_free(prefix_xp);
// XXX Some old systems may require us to set umask first.
fd = mkstemp(datafname);
if (fd == -1) {
g_free(datafname);
datafname = NULL;
scr_LogPrint(LPRINT_LOGNORM,
"Unable to create temp file for external command.");
} else {
size_t data_locale_len = strlen(data_locale);
ssize_t a = write(fd, data_locale, data_locale_len);
ssize_t b = write(fd, "\n", 1);
if ((size_t)a != data_locale_len || b != 1) {
g_free(datafname);
datafname = NULL;
scr_LogPrint(LPRINT_LOGNORM,
"Unable to write to temp file for external command.");
}
close(fd);
arg_data = datafname;
}
g_free(data_locale);
}
if ((pid=fork()) == -1) {
scr_LogPrint(LPRINT_LOGNORM, "Fork error, cannot launch external command.");
g_free(datafname);
return;
}
if (pid == 0) { // child
// Close standard file descriptors
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
if (execl(extcmd, extcmd, arg_type, arg_info, bjid, arg_data,
(char *)NULL) == -1) {
// scr_LogPrint(LPRINT_LOGNORM, "Cannot execute external command.");
exit(1);
}
}
g_free(datafname);
}
/* vim: set expandtab cindent cinoptions=>2\:2(0 sw=2 ts=2: For Vim users... */