static switch_status_t channel_on_execute(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
switch_caller_extension_t *exten;
int bow = 0;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
if ((exten = switch_channel_get_caller_extension(channel))) {
switch_caller_application_t *app_p;
for (app_p = exten->applications; app_p; app_p = app_p->next) {
int32_t flags;
switch_core_session_get_app_flags(app_p->application_name, &flags);
if ((flags & SAF_NO_LOOPBACK)) {
bow = 1;
break;
}
}
}
if (bow) {
switch_core_session_t *other_session;
const char *other_uuid;
if ((find_non_loopback_bridge(tech_pvt->other_session, &other_session, &other_uuid) == SWITCH_STATUS_SUCCESS)) {
switch_caller_extension_t *extension;
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
switch_caller_extension_clone(&extension, exten, switch_core_session_get_pool(other_session));
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_INFO, "BOWOUT Transfering current extension to non-loopback leg.\n");
switch_channel_transfer_to_extension(other_channel, extension);
switch_core_session_rwunlock(other_session);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags, int stream_id)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
switch_status_t status = SWITCH_STATUS_FALSE;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
if (switch_test_flag(frame, SFF_CNG) ||
(switch_test_flag(tech_pvt, TFLAG_BOWOUT) && switch_test_flag(tech_pvt, TFLAG_BOWOUT_USED))) {
switch_core_timer_sync(&tech_pvt->timer);
switch_core_timer_sync(&tech_pvt->other_tech_pvt->timer);
return SWITCH_STATUS_SUCCESS;
}
switch_mutex_lock(tech_pvt->mutex);
if (!switch_test_flag(tech_pvt, TFLAG_BOWOUT) &&
tech_pvt->other_tech_pvt &&
switch_test_flag(tech_pvt, TFLAG_BRIDGE) &&
switch_test_flag(tech_pvt->other_tech_pvt, TFLAG_BRIDGE) &&
switch_channel_test_flag(tech_pvt->channel, CF_BRIDGED) &&
switch_channel_test_flag(tech_pvt->other_channel, CF_BRIDGED) &&
switch_channel_test_flag(tech_pvt->channel, CF_ANSWERED) &&
switch_channel_test_flag(tech_pvt->other_channel, CF_ANSWERED) && --tech_pvt->bowout_frame_count <= 0) {
const char *a_uuid = NULL;
const char *b_uuid = NULL;
const char *vetoa, *vetob;
vetoa = switch_channel_get_variable(tech_pvt->channel, "loopback_bowout");
vetob = switch_channel_get_variable(tech_pvt->other_tech_pvt->channel, "loopback_bowout");
if ((!vetoa || switch_true(vetoa)) && (!vetob || switch_true(vetob))) {
switch_core_session_t *br_a, *br_b;
switch_channel_t *ch_a = NULL, *ch_b = NULL;
int good_to_go = 0;
switch_mutex_unlock(tech_pvt->mutex);
find_non_loopback_bridge(session, &br_a, &a_uuid);
find_non_loopback_bridge(tech_pvt->other_session, &br_b, &b_uuid);
switch_mutex_lock(tech_pvt->mutex);
if (br_a) {
ch_a = switch_core_session_get_channel(br_a);
switch_core_media_bug_transfer_recordings(session, br_a);
}
if (br_b) {
ch_b = switch_core_session_get_channel(br_b);
switch_core_media_bug_transfer_recordings(tech_pvt->other_session, br_b);
}
if (ch_a && ch_b && switch_channel_test_flag(ch_a, CF_BRIDGED) && switch_channel_test_flag(ch_b, CF_BRIDGED)) {
switch_set_flag_locked(tech_pvt, TFLAG_BOWOUT);
switch_set_flag_locked(tech_pvt->other_tech_pvt, TFLAG_BOWOUT);
switch_clear_flag_locked(tech_pvt, TFLAG_WRITE);
switch_clear_flag_locked(tech_pvt->other_tech_pvt, TFLAG_WRITE);
switch_set_flag_locked(tech_pvt, TFLAG_BOWOUT_USED);
switch_set_flag_locked(tech_pvt->other_tech_pvt, TFLAG_BOWOUT_USED);
if (a_uuid && b_uuid) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG,
"%s detected bridge on both ends, attempting direct connection.\n", switch_channel_get_name(channel));
/* channel_masquerade eat your heart out....... */
switch_ivr_uuid_bridge(a_uuid, b_uuid);
good_to_go = 1;
switch_mutex_unlock(tech_pvt->mutex);
}
}
if (br_a) switch_core_session_rwunlock(br_a);
if (br_b) switch_core_session_rwunlock(br_b);
if (good_to_go) {
return SWITCH_STATUS_SUCCESS;
}
}
}
if (switch_test_flag(tech_pvt, TFLAG_LINKED) && tech_pvt->other_tech_pvt) {
switch_frame_t *clone;
if (frame->codec->implementation != tech_pvt->write_codec.implementation) {
/* change codecs to match */
tech_init(tech_pvt, session, frame->codec);
tech_init(tech_pvt->other_tech_pvt, tech_pvt->other_session, frame->codec);
}
if (switch_frame_dup(frame, &clone) != SWITCH_STATUS_SUCCESS) {
abort();
}
if ((status = switch_queue_trypush(tech_pvt->other_tech_pvt->frame_queue, clone)) != SWITCH_STATUS_SUCCESS) {
clear_queue(tech_pvt->other_tech_pvt);
status = switch_queue_trypush(tech_pvt->other_tech_pvt->frame_queue, clone);
}
if (status == SWITCH_STATUS_SUCCESS) {
switch_set_flag_locked(tech_pvt->other_tech_pvt, TFLAG_WRITE);
} else {
switch_frame_free(&clone);
}
status = SWITCH_STATUS_SUCCESS;
}
switch_mutex_unlock(tech_pvt->mutex);
return status;
}
static switch_status_t channel_on_execute(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
loopback_private_t *tech_pvt = NULL;
switch_caller_extension_t *exten = NULL;
const char *bowout = NULL;
int bow = 0;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
if ((bowout = switch_channel_get_variable(tech_pvt->channel, "loopback_bowout_on_execute")) && switch_true(bowout)) {
/* loopback_bowout_on_execute variable is set */
bow = 1;
} else if ((exten = switch_channel_get_caller_extension(channel))) {
/* check for bowout flag */
switch_caller_application_t *app_p;
for (app_p = exten->applications; app_p; app_p = app_p->next) {
int32_t flags;
switch_core_session_get_app_flags(app_p->application_name, &flags);
if ((flags & SAF_NO_LOOPBACK)) {
bow = 1;
break;
}
}
}
if (bow) {
switch_core_session_t *other_session = NULL;
switch_caller_profile_t *cp, *clone;
const char *other_uuid = NULL;
switch_event_t *event = NULL;
switch_set_flag(tech_pvt, TFLAG_BOWOUT);
if ((find_non_loopback_bridge(tech_pvt->other_session, &other_session, &other_uuid) == SWITCH_STATUS_SUCCESS)) {
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
switch_channel_wait_for_state_timeout(other_channel, CS_EXCHANGE_MEDIA, 5000);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_INFO, "BOWOUT Replacing loopback channel with real channel: %s\n",
switch_channel_get_name(other_channel));
if (switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, "loopback::bowout") == SWITCH_STATUS_SUCCESS) {
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Resigning-UUID", switch_channel_get_uuid(channel));
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Acquired-UUID", switch_channel_get_uuid(other_channel));
switch_event_fire(&event);
}
if ((cp = switch_channel_get_caller_profile(channel))) {
clone = switch_caller_profile_clone(other_session, cp);
clone->originator_caller_profile = NULL;
clone->originatee_caller_profile = NULL;
switch_channel_set_caller_profile(other_channel, clone);
}
switch_channel_caller_extension_masquerade(channel, other_channel, 0);
switch_channel_set_state(other_channel, CS_RESET);
switch_channel_wait_for_state(other_channel, NULL, CS_RESET);
switch_channel_set_state(other_channel, CS_EXECUTE);
switch_core_session_rwunlock(other_session);
switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_UNSPECIFIED);
}
}
return SWITCH_STATUS_SUCCESS;
}
