DTMF start/end and hold/unhold events have state because a DTMF begin event and hold event must be ended by something. The following cases need to be handled when a channel is moved around in the system. * When a channel leaves a bridge it may owe a DTMF end event to the bridge. * When a channel leaves a bridge it may owe an UNHOLD event to the bridge. (This case is explicitly ignored because things like transfers need explicit control over this.) * When a channel leaves the bridging system it may need to simulate a DTMF end event to the channel. * When a channel leaves the bridging system it may need to simulate an UNHOLD event to the channel. The patch also fixes the following: * Fixes playing a file and restarting MOH using the latest MOH class used. (closes issue ASTERISK-22043) Reported by: Matt Jordan Review: https://reviewboard.asterisk.org/r/2791/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@397577 65c4cc65-6c06-0410-ace0-fbb531ad65f3
218 lines
6.5 KiB
C
218 lines
6.5 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* Jonathan Rose <jrose@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 interval features
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*
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* \author Jonathan Rose <jrose@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 "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/file.h"
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#include "asterisk/app.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/test.h"
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#include "asterisk/say.h"
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#include "asterisk/stringfields.h"
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#include "asterisk/musiconhold.h"
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#include "asterisk/causes.h"
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static int bridge_features_duration_callback(struct ast_bridge_channel *bridge_channel, void *hook_pvt)
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{
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struct ast_bridge_features_limits *limits = hook_pvt;
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if (!ast_strlen_zero(limits->duration_sound)) {
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ast_stream_and_wait(bridge_channel->chan, limits->duration_sound, AST_DIGIT_NONE);
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}
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ast_bridge_channel_leave_bridge(bridge_channel, BRIDGE_CHANNEL_STATE_END,
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AST_CAUSE_NORMAL_CLEARING);
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ast_test_suite_event_notify("BRIDGE_TIMELIMIT", "Channel1: %s",
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ast_channel_name(bridge_channel->chan));
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return -1;
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}
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static void limits_interval_playback(struct ast_bridge_channel *bridge_channel, struct ast_bridge_features_limits *limits, const char *file)
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{
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if (!strcasecmp(file, "timeleft")) {
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unsigned int remaining = ast_tvdiff_ms(limits->quitting_time, ast_tvnow()) / 1000;
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unsigned int min;
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unsigned int sec;
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if (remaining <= 0) {
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return;
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}
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if ((remaining / 60) > 1) {
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min = remaining / 60;
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sec = remaining % 60;
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} else {
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min = 0;
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sec = remaining;
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}
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ast_stream_and_wait(bridge_channel->chan, "vm-youhave", AST_DIGIT_NONE);
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if (min) {
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ast_say_number(bridge_channel->chan, min, AST_DIGIT_NONE,
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ast_channel_language(bridge_channel->chan), NULL);
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ast_stream_and_wait(bridge_channel->chan, "queue-minutes", AST_DIGIT_NONE);
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}
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if (sec) {
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ast_say_number(bridge_channel->chan, sec, AST_DIGIT_NONE,
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ast_channel_language(bridge_channel->chan), NULL);
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ast_stream_and_wait(bridge_channel->chan, "queue-seconds", AST_DIGIT_NONE);
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}
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} else {
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ast_stream_and_wait(bridge_channel->chan, file, AST_DIGIT_NONE);
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}
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/*
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* It may be necessary to resume music on hold after we finish
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* playing the announcment.
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*/
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if (ast_test_flag(ast_channel_flags(bridge_channel->chan), AST_FLAG_MOH)) {
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const char *latest_musicclass;
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ast_channel_lock(bridge_channel->chan);
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latest_musicclass = ast_strdupa(ast_channel_latest_musicclass(bridge_channel->chan));
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ast_channel_unlock(bridge_channel->chan);
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ast_moh_start(bridge_channel->chan, latest_musicclass, NULL);
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}
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}
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static int bridge_features_connect_callback(struct ast_bridge_channel *bridge_channel, void *hook_pvt)
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{
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struct ast_bridge_features_limits *limits = hook_pvt;
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limits_interval_playback(bridge_channel, limits, limits->connect_sound);
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return -1;
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}
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static int bridge_features_warning_callback(struct ast_bridge_channel *bridge_channel, void *hook_pvt)
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{
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struct ast_bridge_features_limits *limits = hook_pvt;
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limits_interval_playback(bridge_channel, limits, limits->warning_sound);
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return limits->frequency ?: -1;
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}
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static void bridge_features_limits_copy(struct ast_bridge_features_limits *dst, struct ast_bridge_features_limits *src)
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{
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ast_string_fields_copy(dst, src);
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dst->quitting_time = src->quitting_time;
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dst->duration = src->duration;
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dst->warning = src->warning;
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dst->frequency = src->frequency;
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}
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static void bridge_features_limits_dtor(void *vdoomed)
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{
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struct ast_bridge_features_limits *doomed = vdoomed;
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ast_bridge_features_limits_destroy(doomed);
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ast_module_unref(ast_module_info->self);
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}
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static int bridge_builtin_set_limits(struct ast_bridge_features *features,
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struct ast_bridge_features_limits *limits,
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enum ast_bridge_hook_remove_flags remove_flags)
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{
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RAII_VAR(struct ast_bridge_features_limits *, feature_limits, NULL, ao2_cleanup);
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if (!limits->duration) {
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return -1;
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}
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/* Create limits hook_pvt data. */
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ast_module_ref(ast_module_info->self);
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feature_limits = ao2_alloc_options(sizeof(*feature_limits),
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bridge_features_limits_dtor, AO2_ALLOC_OPT_LOCK_NOLOCK);
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if (!feature_limits) {
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ast_module_unref(ast_module_info->self);
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return -1;
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}
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if (ast_bridge_features_limits_construct(feature_limits)) {
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return -1;
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}
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bridge_features_limits_copy(feature_limits, limits);
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feature_limits->quitting_time = ast_tvadd(ast_tvnow(),
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ast_samp2tv(feature_limits->duration, 1000));
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/* Install limit hooks. */
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ao2_ref(feature_limits, +1);
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if (ast_bridge_interval_hook(features, AST_BRIDGE_HOOK_TIMER_OPTION_MEDIA,
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feature_limits->duration,
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bridge_features_duration_callback, feature_limits, __ao2_cleanup, remove_flags)) {
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ast_log(LOG_ERROR, "Failed to schedule the duration limiter to the bridge channel.\n");
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ao2_ref(feature_limits, -1);
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return -1;
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}
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if (!ast_strlen_zero(feature_limits->connect_sound)) {
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ao2_ref(feature_limits, +1);
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if (ast_bridge_interval_hook(features, AST_BRIDGE_HOOK_TIMER_OPTION_MEDIA, 1,
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bridge_features_connect_callback, feature_limits, __ao2_cleanup, remove_flags)) {
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ast_log(LOG_WARNING, "Failed to schedule connect sound to the bridge channel.\n");
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ao2_ref(feature_limits, -1);
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}
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}
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if (feature_limits->warning && feature_limits->warning < feature_limits->duration) {
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ao2_ref(feature_limits, +1);
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if (ast_bridge_interval_hook(features, AST_BRIDGE_HOOK_TIMER_OPTION_MEDIA,
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feature_limits->duration - feature_limits->warning,
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bridge_features_warning_callback, feature_limits, __ao2_cleanup, remove_flags)) {
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ast_log(LOG_WARNING, "Failed to schedule warning sound playback to the bridge channel.\n");
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ao2_ref(feature_limits, -1);
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}
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}
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return 0;
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}
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static int unload_module(void)
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{
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ast_bridge_interval_unregister(AST_BRIDGE_BUILTIN_INTERVAL_LIMITS);
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return 0;
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}
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static int load_module(void)
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{
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return ast_bridge_interval_register(AST_BRIDGE_BUILTIN_INTERVAL_LIMITS,
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bridge_builtin_set_limits);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Built in bridging interval features");
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