The cause code needs to be passed from the disconnecting channel to the bridge peers if the disconnecting channel dissolves the bridge. * Made the call to an app_agent_pool agent disconnect with the busy cause code if the agent does not ack the call in time or hangs up before acking the call. (closes issue ASTERISK-22042) Reported by: Matt Jordan Review: https://reviewboard.asterisk.org/r/2772/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@397472 65c4cc65-6c06-0410-ace0-fbb531ad65f3
514 lines
17 KiB
C
514 lines
17 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2009, Digium, Inc.
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*
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* Joshua Colp <jcolp@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Built in bridging features
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*
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* \author Joshua Colp <jcolp@digium.com>
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*
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* \ingroup bridges
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "asterisk/module.h"
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#include "asterisk/channel.h"
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#include "asterisk/bridge.h"
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#include "asterisk/bridge_technology.h"
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#include "asterisk/frame.h"
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#include "asterisk/file.h"
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#include "asterisk/app.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/pbx.h"
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#include "asterisk/parking.h"
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#include "asterisk/features_config.h"
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#include "asterisk/monitor.h"
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#include "asterisk/mixmonitor.h"
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#include "asterisk/audiohook.h"
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#include "asterisk/causes.h"
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enum set_touch_variables_res {
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SET_TOUCH_SUCCESS,
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SET_TOUCH_UNSET,
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SET_TOUCH_ALLOC_FAILURE,
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};
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static void set_touch_variable(enum set_touch_variables_res *res, struct ast_channel *chan, const char *var_name, char **touch)
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{
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const char *c_touch;
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if (*res == SET_TOUCH_ALLOC_FAILURE) {
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return;
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}
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c_touch = pbx_builtin_getvar_helper(chan, var_name);
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if (!ast_strlen_zero(c_touch)) {
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*touch = ast_strdup(c_touch);
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if (!*touch) {
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*res = SET_TOUCH_ALLOC_FAILURE;
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} else {
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*res = SET_TOUCH_SUCCESS;
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}
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}
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}
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static enum set_touch_variables_res set_touch_variables(struct ast_channel *chan, int is_mixmonitor, char **touch_format, char **touch_monitor, char **touch_monitor_prefix)
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{
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enum set_touch_variables_res res = SET_TOUCH_UNSET;
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const char *var_format;
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const char *var_monitor;
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const char *var_prefix;
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SCOPED_CHANNELLOCK(lock, chan);
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if (is_mixmonitor) {
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var_format = "TOUCH_MIXMONITOR_FORMAT";
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var_monitor = "TOUCH_MIXMONITOR";
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var_prefix = "TOUCH_MIXMONITOR_PREFIX";
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} else {
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var_format = "TOUCH_MONITOR_FORMAT";
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var_monitor = "TOUCH_MONITOR";
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var_prefix = "TOUCH_MONITOR_PREFIX";
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}
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set_touch_variable(&res, chan, var_format, touch_format);
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set_touch_variable(&res, chan, var_monitor, touch_monitor);
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set_touch_variable(&res, chan, var_prefix, touch_monitor_prefix);
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return res;
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}
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static void stop_automonitor(struct ast_bridge_channel *bridge_channel, struct ast_channel *peer_chan, struct ast_features_general_config *features_cfg, const char *stop_message)
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{
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ast_verb(3, "AutoMonitor used to stop recording call.\n");
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ast_channel_lock(peer_chan);
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if (ast_channel_monitor(peer_chan)) {
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if (ast_channel_monitor(peer_chan)->stop(peer_chan, 1)) {
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ast_verb(3, "Cannot stop AutoMonitor for %s\n", ast_channel_name(bridge_channel->chan));
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if (features_cfg && !(ast_strlen_zero(features_cfg->recordingfailsound))) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->recordingfailsound, NULL);
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}
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ast_channel_unlock(peer_chan);
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return;
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}
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} else {
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/* Something else removed the Monitor before we got to it. */
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ast_channel_unlock(peer_chan);
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return;
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}
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ast_channel_unlock(peer_chan);
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if (features_cfg && !(ast_strlen_zero(features_cfg->courtesytone))) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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}
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if (!ast_strlen_zero(stop_message)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, stop_message, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, stop_message, NULL);
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}
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}
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static void start_automonitor(struct ast_bridge_channel *bridge_channel, struct ast_channel *peer_chan, struct ast_features_general_config *features_cfg, const char *start_message)
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{
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char *touch_filename;
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size_t len;
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int x;
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enum set_touch_variables_res set_touch_res;
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RAII_VAR(char *, touch_format, NULL, ast_free);
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RAII_VAR(char *, touch_monitor, NULL, ast_free);
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RAII_VAR(char *, touch_monitor_prefix, NULL, ast_free);
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set_touch_res = set_touch_variables(bridge_channel->chan, 0, &touch_format,
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&touch_monitor, &touch_monitor_prefix);
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switch (set_touch_res) {
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case SET_TOUCH_SUCCESS:
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break;
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case SET_TOUCH_UNSET:
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set_touch_res = set_touch_variables(peer_chan, 0, &touch_format, &touch_monitor,
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&touch_monitor_prefix);
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if (set_touch_res == SET_TOUCH_ALLOC_FAILURE) {
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return;
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}
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break;
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case SET_TOUCH_ALLOC_FAILURE:
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return;
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}
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if (!ast_strlen_zero(touch_monitor)) {
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len = strlen(touch_monitor) + 50;
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touch_filename = ast_alloca(len);
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snprintf(touch_filename, len, "%s-%ld-%s",
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S_OR(touch_monitor_prefix, "auto"),
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(long) time(NULL),
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touch_monitor);
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} else {
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char *caller_chan_id;
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char *peer_chan_id;
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caller_chan_id = ast_strdupa(S_COR(ast_channel_caller(bridge_channel->chan)->id.number.valid,
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ast_channel_caller(bridge_channel->chan)->id.number.str, ast_channel_name(bridge_channel->chan)));
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peer_chan_id = ast_strdupa(S_COR(ast_channel_caller(peer_chan)->id.number.valid,
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ast_channel_caller(peer_chan)->id.number.str, ast_channel_name(peer_chan)));
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len = strlen(caller_chan_id) + strlen(peer_chan_id) + 50;
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touch_filename = ast_alloca(len);
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snprintf(touch_filename, len, "%s-%ld-%s-%s",
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S_OR(touch_monitor_prefix, "auto"),
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(long) time(NULL),
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caller_chan_id,
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peer_chan_id);
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}
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for (x = 0; x < strlen(touch_filename); x++) {
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if (touch_filename[x] == '/') {
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touch_filename[x] = '-';
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}
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}
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ast_verb(3, "AutoMonitor used to record call. Filename: %s\n", touch_filename);
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if (ast_monitor_start(peer_chan, touch_format, touch_filename, 1, X_REC_IN | X_REC_OUT)) {
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ast_verb(3, "automon feature was tried by '%s' but monitor failed to start.\n",
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ast_channel_name(bridge_channel->chan));
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return;
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}
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if (features_cfg && !ast_strlen_zero(features_cfg->courtesytone)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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}
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if (!ast_strlen_zero(start_message)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, start_message, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, start_message, NULL);
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}
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pbx_builtin_setvar_helper(peer_chan, "TOUCH_MONITOR_OUTPUT", touch_filename);
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}
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static int feature_automonitor(struct ast_bridge_channel *bridge_channel, void *hook_pvt)
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{
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const char *start_message;
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const char *stop_message;
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struct ast_bridge_features_automonitor *options = hook_pvt;
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enum ast_bridge_features_monitor start_stop = options ? options->start_stop : AUTO_MONITOR_TOGGLE;
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int is_monitoring;
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RAII_VAR(struct ast_channel *, peer_chan, NULL, ast_channel_cleanup);
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RAII_VAR(struct ast_features_general_config *, features_cfg, NULL, ao2_cleanup);
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features_cfg = ast_get_chan_features_general_config(bridge_channel->chan);
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ast_bridge_channel_lock_bridge(bridge_channel);
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peer_chan = ast_bridge_peer_nolock(bridge_channel->bridge, bridge_channel->chan);
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ast_bridge_unlock(bridge_channel->bridge);
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if (!peer_chan) {
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ast_verb(3, "Cannot start AutoMonitor for %s - can not determine peer in bridge.\n",
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ast_channel_name(bridge_channel->chan));
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if (features_cfg && !ast_strlen_zero(features_cfg->recordingfailsound)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->recordingfailsound, NULL);
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}
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return 0;
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}
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ast_channel_lock(bridge_channel->chan);
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start_message = pbx_builtin_getvar_helper(bridge_channel->chan,
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"TOUCH_MONITOR_MESSAGE_START");
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start_message = ast_strdupa(S_OR(start_message, ""));
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stop_message = pbx_builtin_getvar_helper(bridge_channel->chan,
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"TOUCH_MONITOR_MESSAGE_STOP");
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stop_message = ast_strdupa(S_OR(stop_message, ""));
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ast_channel_unlock(bridge_channel->chan);
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is_monitoring = ast_channel_monitor(peer_chan) != NULL;
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switch (start_stop) {
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case AUTO_MONITOR_TOGGLE:
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if (is_monitoring) {
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stop_automonitor(bridge_channel, peer_chan, features_cfg, stop_message);
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} else {
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start_automonitor(bridge_channel, peer_chan, features_cfg, start_message);
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}
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return 0;
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case AUTO_MONITOR_START:
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if (!is_monitoring) {
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start_automonitor(bridge_channel, peer_chan, features_cfg, start_message);
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return 0;
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}
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ast_verb(3, "AutoMonitor already recording call.\n");
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break;
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case AUTO_MONITOR_STOP:
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if (is_monitoring) {
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stop_automonitor(bridge_channel, peer_chan, features_cfg, stop_message);
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return 0;
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}
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ast_verb(3, "AutoMonitor already not recording call.\n");
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break;
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}
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/*
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* Fake start/stop to invoker so will think it did something but
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* was already in that mode.
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*/
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if (features_cfg && !ast_strlen_zero(features_cfg->courtesytone)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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}
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if (is_monitoring) {
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if (!ast_strlen_zero(start_message)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, start_message, NULL);
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}
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} else {
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if (!ast_strlen_zero(stop_message)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, stop_message, NULL);
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}
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}
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return 0;
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}
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static void stop_automixmonitor(struct ast_bridge_channel *bridge_channel, struct ast_channel *peer_chan, struct ast_features_general_config *features_cfg, const char *stop_message)
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{
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ast_verb(3, "AutoMixMonitor used to stop recording call.\n");
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if (ast_stop_mixmonitor(peer_chan, NULL)) {
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ast_verb(3, "Failed to stop Mixmonitor for %s.\n", ast_channel_name(bridge_channel->chan));
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if (features_cfg && !(ast_strlen_zero(features_cfg->recordingfailsound))) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->recordingfailsound, NULL);
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}
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return;
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}
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if (features_cfg && !ast_strlen_zero(features_cfg->courtesytone)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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}
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if (!ast_strlen_zero(stop_message)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, stop_message, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, stop_message, NULL);
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}
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}
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static void start_automixmonitor(struct ast_bridge_channel *bridge_channel, struct ast_channel *peer_chan, struct ast_features_general_config *features_cfg, const char *start_message)
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{
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char *touch_filename;
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size_t len;
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int x;
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enum set_touch_variables_res set_touch_res;
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RAII_VAR(char *, touch_format, NULL, ast_free);
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RAII_VAR(char *, touch_monitor, NULL, ast_free);
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RAII_VAR(char *, touch_monitor_prefix, NULL, ast_free);
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set_touch_res = set_touch_variables(bridge_channel->chan, 1, &touch_format,
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&touch_monitor, &touch_monitor_prefix);
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switch (set_touch_res) {
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case SET_TOUCH_SUCCESS:
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break;
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case SET_TOUCH_UNSET:
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set_touch_res = set_touch_variables(peer_chan, 1, &touch_format, &touch_monitor,
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&touch_monitor_prefix);
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if (set_touch_res == SET_TOUCH_ALLOC_FAILURE) {
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return;
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}
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break;
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case SET_TOUCH_ALLOC_FAILURE:
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return;
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}
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if (!ast_strlen_zero(touch_monitor)) {
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len = strlen(touch_monitor) + 50;
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touch_filename = ast_alloca(len);
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snprintf(touch_filename, len, "%s-%ld-%s.%s",
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S_OR(touch_monitor_prefix, "auto"),
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(long) time(NULL),
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touch_monitor,
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S_OR(touch_format, "wav"));
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} else {
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char *caller_chan_id;
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char *peer_chan_id;
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caller_chan_id = ast_strdupa(S_COR(ast_channel_caller(bridge_channel->chan)->id.number.valid,
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ast_channel_caller(bridge_channel->chan)->id.number.str, ast_channel_name(bridge_channel->chan)));
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peer_chan_id = ast_strdupa(S_COR(ast_channel_caller(peer_chan)->id.number.valid,
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ast_channel_caller(peer_chan)->id.number.str, ast_channel_name(peer_chan)));
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len = strlen(caller_chan_id) + strlen(peer_chan_id) + 50;
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touch_filename = ast_alloca(len);
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snprintf(touch_filename, len, "%s-%ld-%s-%s.%s",
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S_OR(touch_monitor_prefix, "auto"),
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(long) time(NULL),
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caller_chan_id,
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peer_chan_id,
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S_OR(touch_format, "wav"));
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}
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for (x = 0; x < strlen(touch_filename); x++) {
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if (touch_filename[x] == '/') {
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touch_filename[x] = '-';
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}
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}
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ast_verb(3, "AutoMixMonitor used to record call. Filename: %s\n", touch_filename);
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if (ast_start_mixmonitor(peer_chan, touch_filename, "b")) {
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ast_verb(3, "automixmon feature was tried by '%s' but mixmonitor failed to start.\n",
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ast_channel_name(bridge_channel->chan));
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if (features_cfg && !ast_strlen_zero(features_cfg->recordingfailsound)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->recordingfailsound, NULL);
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}
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return;
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}
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if (features_cfg && !ast_strlen_zero(features_cfg->courtesytone)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
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}
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if (!ast_strlen_zero(start_message)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, start_message, NULL);
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ast_bridge_channel_write_playfile(bridge_channel, NULL, start_message, NULL);
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}
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pbx_builtin_setvar_helper(peer_chan, "TOUCH_MIXMONITOR_OUTPUT", touch_filename);
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}
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static int feature_automixmonitor(struct ast_bridge_channel *bridge_channel, void *hook_pvt)
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{
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static const char *mixmonitor_spy_type = "MixMonitor";
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const char *stop_message;
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const char *start_message;
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struct ast_bridge_features_automixmonitor *options = hook_pvt;
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enum ast_bridge_features_monitor start_stop = options ? options->start_stop : AUTO_MONITOR_TOGGLE;
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int is_monitoring;
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RAII_VAR(struct ast_channel *, peer_chan, NULL, ast_channel_cleanup);
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RAII_VAR(struct ast_features_general_config *, features_cfg, NULL, ao2_cleanup);
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features_cfg = ast_get_chan_features_general_config(bridge_channel->chan);
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ast_bridge_channel_lock_bridge(bridge_channel);
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peer_chan = ast_bridge_peer_nolock(bridge_channel->bridge, bridge_channel->chan);
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ast_bridge_unlock(bridge_channel->bridge);
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if (!peer_chan) {
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ast_verb(3, "Cannot do AutoMixMonitor for %s - cannot determine peer in bridge.\n",
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ast_channel_name(bridge_channel->chan));
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if (features_cfg && !ast_strlen_zero(features_cfg->recordingfailsound)) {
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ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->recordingfailsound, NULL);
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}
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return 0;
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}
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ast_channel_lock(bridge_channel->chan);
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start_message = pbx_builtin_getvar_helper(bridge_channel->chan,
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"TOUCH_MIXMONITOR_MESSAGE_START");
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start_message = ast_strdupa(S_OR(start_message, ""));
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stop_message = pbx_builtin_getvar_helper(bridge_channel->chan,
|
|
"TOUCH_MIXMONITOR_MESSAGE_STOP");
|
|
stop_message = ast_strdupa(S_OR(stop_message, ""));
|
|
ast_channel_unlock(bridge_channel->chan);
|
|
|
|
is_monitoring =
|
|
0 < ast_channel_audiohook_count_by_source(peer_chan, mixmonitor_spy_type, AST_AUDIOHOOK_TYPE_SPY);
|
|
switch (start_stop) {
|
|
case AUTO_MONITOR_TOGGLE:
|
|
if (is_monitoring) {
|
|
stop_automixmonitor(bridge_channel, peer_chan, features_cfg, stop_message);
|
|
} else {
|
|
start_automixmonitor(bridge_channel, peer_chan, features_cfg, start_message);
|
|
}
|
|
return 0;
|
|
case AUTO_MONITOR_START:
|
|
if (!is_monitoring) {
|
|
start_automixmonitor(bridge_channel, peer_chan, features_cfg, start_message);
|
|
return 0;
|
|
}
|
|
ast_verb(3, "AutoMixMonitor already recording call.\n");
|
|
break;
|
|
case AUTO_MONITOR_STOP:
|
|
if (is_monitoring) {
|
|
stop_automixmonitor(bridge_channel, peer_chan, features_cfg, stop_message);
|
|
return 0;
|
|
}
|
|
ast_verb(3, "AutoMixMonitor already not recording call.\n");
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Fake start/stop to invoker so will think it did something but
|
|
* was already in that mode.
|
|
*/
|
|
if (features_cfg && !ast_strlen_zero(features_cfg->courtesytone)) {
|
|
ast_bridge_channel_queue_playfile(bridge_channel, NULL, features_cfg->courtesytone, NULL);
|
|
}
|
|
if (is_monitoring) {
|
|
if (!ast_strlen_zero(start_message)) {
|
|
ast_bridge_channel_queue_playfile(bridge_channel, NULL, start_message, NULL);
|
|
}
|
|
} else {
|
|
if (!ast_strlen_zero(stop_message)) {
|
|
ast_bridge_channel_queue_playfile(bridge_channel, NULL, stop_message, NULL);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Internal built in feature for hangup */
|
|
static int feature_hangup(struct ast_bridge_channel *bridge_channel, void *hook_pvt)
|
|
{
|
|
/*
|
|
* This is very simple, we simply change the state on the
|
|
* bridge_channel to force the channel out of the bridge and the
|
|
* core takes care of the rest.
|
|
*/
|
|
ast_bridge_channel_leave_bridge(bridge_channel, BRIDGE_CHANNEL_STATE_END,
|
|
AST_CAUSE_NORMAL_CLEARING);
|
|
return 0;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
ast_bridge_features_register(AST_BRIDGE_BUILTIN_HANGUP, feature_hangup, NULL);
|
|
ast_bridge_features_register(AST_BRIDGE_BUILTIN_AUTOMON, feature_automonitor, NULL);
|
|
ast_bridge_features_register(AST_BRIDGE_BUILTIN_AUTOMIXMON, feature_automixmonitor, NULL);
|
|
|
|
/* Bump up our reference count so we can't be unloaded */
|
|
ast_module_ref(ast_module_info->self);
|
|
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Built in bridging features");
|