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freeswitch/src/switch_ivr_bridge.c

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/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Anthony Minessale II <anthm@freeswitch.org>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Anthony Minessale II <anthm@freeswitch.org>
*
* switch_ivr_bridge.c -- IVR Library
*
*/
#include <switch.h>
#define DEFAULT_LEAD_FRAMES 10
static const switch_state_handler_table_t audio_bridge_peer_state_handlers;
static void cleanup_proxy_mode_a(switch_core_session_t *session);
static void cleanup_proxy_mode_b(switch_core_session_t *session);
/* Bridge Related Stuff*/
/*********************************************************************************/
#ifdef SWITCH_VIDEO_IN_THREADS
struct vid_helper {
switch_core_session_t *session_a;
switch_core_session_t *session_b;
int up;
};
static void *SWITCH_THREAD_FUNC video_bridge_thread(switch_thread_t *thread, void *obj)
{
struct vid_helper *vh = obj;
switch_channel_t *channel = switch_core_session_get_channel(vh->session_a);
switch_channel_t *b_channel = switch_core_session_get_channel(vh->session_b);
switch_status_t status;
switch_frame_t *read_frame = 0;
const char *source = switch_channel_get_variable(channel, "source");
const char *b_source = switch_channel_get_variable(b_channel, "source");
vh->up = 1;
switch_core_session_read_lock(vh->session_a);
switch_core_session_read_lock(vh->session_b);
if (!switch_stristr("loopback", source) && !switch_stristr("loopback", b_source)) {
switch_channel_set_flag(channel, CF_VIDEO_PASSIVE);
//switch_channel_set_flag(b_channel, CF_VIDEO_PASSIVE);
}
switch_core_session_refresh_video(vh->session_a);
switch_core_session_refresh_video(vh->session_b);
while (switch_channel_up_nosig(channel) && switch_channel_up_nosig(b_channel) && vh->up == 1) {
if (switch_channel_media_up(channel)) {
status = switch_core_session_read_video_frame(vh->session_a, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
switch_cond_next();
continue;
}
}
if (switch_test_flag(read_frame, SFF_CNG)) {
continue;
}
if (switch_channel_media_up(b_channel)) {
if (switch_core_session_write_video_frame(vh->session_b, read_frame, SWITCH_IO_FLAG_NONE, 0) != SWITCH_STATUS_SUCCESS) {
switch_cond_next();
continue;
}
}
}
switch_channel_clear_flag(channel, CF_VIDEO_PASSIVE);
//switch_channel_clear_flag(b_channel, CF_VIDEO_PASSIVE);
switch_core_session_kill_channel(vh->session_b, SWITCH_SIG_BREAK);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(vh->session_a), SWITCH_LOG_DEBUG, "%s video thread ended.\n", switch_channel_get_name(channel));
switch_core_session_refresh_video(vh->session_a);
switch_core_session_refresh_video(vh->session_b);
switch_core_session_rwunlock(vh->session_a);
switch_core_session_rwunlock(vh->session_b);
vh->up = 0;
return NULL;
}
static switch_thread_t *launch_video(struct vid_helper *vh)
{
switch_thread_t *thread;
switch_threadattr_t *thd_attr = NULL;
switch_threadattr_create(&thd_attr, switch_core_session_get_pool(vh->session_a));
switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
switch_thread_create(&thread, thd_attr, video_bridge_thread, vh, switch_core_session_get_pool(vh->session_a));
return thread;
}
#endif
static void send_display(switch_core_session_t *session, switch_core_session_t *peer_session)
{
switch_core_session_message_t *msg;
switch_caller_profile_t *caller_profile, *peer_caller_profile;
switch_channel_t *caller_channel, *peer_channel;
const char *name, *number, *p;
caller_channel = switch_core_session_get_channel(session);
peer_channel = switch_core_session_get_channel(peer_session);
caller_profile = switch_channel_get_caller_profile(caller_channel);
peer_caller_profile = switch_channel_get_caller_profile(peer_channel);
if (switch_channel_test_flag(caller_channel, CF_BRIDGE_ORIGINATOR)) {
if (!zstr(peer_caller_profile->caller_id_name)) {
name = peer_caller_profile->caller_id_name;
} else {
name = caller_profile->caller_id_name;
}
if (!zstr(peer_caller_profile->caller_id_number)) {
number = peer_caller_profile->caller_id_number;
} else {
number = caller_profile->caller_id_number;
}
if (zstr(number)) {
number = "UNKNOWN";
}
} else {
name = caller_profile->callee_id_name;
number = caller_profile->callee_id_number;
if (zstr(number)) {
number = caller_profile->destination_number;
}
}
if (zstr(name)) {
name = number;
}
if ((p = strrchr(number, '/'))) {
number = p + 1;
}
if ((p = strrchr(name, '/'))) {
name = p + 1;
}
msg = switch_core_session_alloc(peer_session, sizeof(*msg));
MESSAGE_STAMP_FFL(msg);
msg->message_id = SWITCH_MESSAGE_INDICATE_DISPLAY;
msg->string_array_arg[0] = switch_core_session_strdup(peer_session, name);
msg->string_array_arg[1] = switch_core_session_strdup(peer_session, number);
msg->from = __FILE__;
switch_core_session_queue_message(peer_session, msg);
}
SWITCH_DECLARE(void) switch_ivr_bridge_display(switch_core_session_t *session, switch_core_session_t *peer_session)
{
send_display(session, peer_session);
send_display(peer_session, session);
}
struct switch_ivr_bridge_data {
switch_core_session_t *session;
char b_uuid[SWITCH_UUID_FORMATTED_LENGTH + 1];
int stream_id;
switch_input_callback_function_t input_callback;
void *session_data;
int clean_exit;
int done;
struct switch_ivr_bridge_data *other_leg_data;
};
typedef struct switch_ivr_bridge_data switch_ivr_bridge_data_t;
static void *audio_bridge_thread(switch_thread_t *thread, void *obj)
{
switch_ivr_bridge_data_t *data = obj;
int stream_id = 0, pre_b = 0, ans_a = 0, ans_b = 0, originator = 0;
switch_input_callback_function_t input_callback;
switch_core_session_message_t msg = { 0 };
void *user_data;
switch_channel_t *chan_a, *chan_b;
switch_frame_t *read_frame;
switch_core_session_t *session_a, *session_b;
uint32_t read_frame_count = 0;
const char *app_name = NULL, *app_arg = NULL;
int inner_bridge = 0, exec_check = 0;
switch_codec_t silence_codec = { 0 };
switch_frame_t silence_frame = { 0 };
int16_t silence_data[SWITCH_RECOMMENDED_BUFFER_SIZE / 2] = { 0 };
const char *silence_var;
int silence_val = 0, bypass_media_after_bridge = 0;
const char *bridge_answer_timeout = NULL;
int bridge_filter_dtmf, answer_timeout, sent_update = 0;
time_t answer_limit = 0;
const char *exec_app = NULL;
const char *exec_data = NULL;
#ifdef SWITCH_VIDEO_IN_THREADS
switch_thread_t *vid_thread = NULL;
struct vid_helper vh = { 0 };
uint32_t vid_launch = 0;
#endif
data->clean_exit = 0;
session_a = data->session;
if (!(session_b = switch_core_session_locate(data->b_uuid))) {
return NULL;
}
input_callback = data->input_callback;
user_data = data->session_data;
stream_id = data->stream_id;
chan_a = switch_core_session_get_channel(session_a);
chan_b = switch_core_session_get_channel(session_b);
if ((exec_app = switch_channel_get_variable(chan_a, "bridge_pre_execute_app"))) {
exec_data = switch_channel_get_variable(chan_a, "bridge_pre_execute_data");
}
bypass_media_after_bridge = switch_channel_test_flag(chan_a, CF_BYPASS_MEDIA_AFTER_BRIDGE);
switch_channel_clear_flag(chan_a, CF_BYPASS_MEDIA_AFTER_BRIDGE);
ans_a = switch_channel_test_flag(chan_a, CF_ANSWERED);
if ((originator = switch_channel_test_flag(chan_a, CF_BRIDGE_ORIGINATOR))) {
pre_b = switch_channel_test_flag(chan_a, CF_EARLY_MEDIA);
ans_b = switch_channel_test_flag(chan_b, CF_ANSWERED);
}
inner_bridge = switch_channel_test_flag(chan_a, CF_INNER_BRIDGE);
if (!switch_channel_test_flag(chan_a, CF_ANSWERED) && (bridge_answer_timeout = switch_channel_get_variable(chan_a, "bridge_answer_timeout"))) {
if ((answer_timeout = atoi(bridge_answer_timeout)) < 0) {
answer_timeout = 0;
} else {
answer_limit = switch_epoch_time_now(NULL) + answer_timeout;
}
}
switch_channel_clear_flag(chan_a, CF_INTERCEPT);
switch_channel_clear_flag(chan_a, CF_INTERCEPTED);
switch_channel_set_flag(chan_a, CF_BRIDGED);
switch_channel_wait_for_flag(chan_b, CF_BRIDGED, SWITCH_TRUE, 10000, chan_a);
if (!switch_channel_test_flag(chan_b, CF_BRIDGED)) {
if (!(switch_channel_test_flag(chan_b, CF_TRANSFER) || switch_channel_test_flag(chan_b, CF_REDIRECT)
|| switch_channel_get_state(chan_b) == CS_RESET)) {
switch_channel_hangup(chan_b, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
goto end_of_bridge_loop;
}
if (bypass_media_after_bridge) {
const char *source_a = switch_channel_get_variable(chan_a, "source");
const char *source_b = switch_channel_get_variable(chan_b, "source");
if (!source_a) source_a = "";
if (!source_b) source_b = "";
if (switch_stristr("loopback", source_a) || switch_stristr("loopback", source_b)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_WARNING, "Cannot bypass media while bridged to a loopback address.\n");
bypass_media_after_bridge = 0;
}
}
if ((silence_var = switch_channel_get_variable(chan_a, "bridge_generate_comfort_noise"))) {
switch_codec_implementation_t read_impl = { 0 };
switch_core_session_get_read_impl(session_a, &read_impl);
if (!switch_channel_media_up(chan_a)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_ERROR, "Channel has no media!\n");
goto end_of_bridge_loop;
}
if (switch_true(silence_var)) {
silence_val = 1400;
} else {
if ((silence_val = atoi(silence_var)) < -1) {
silence_val = 0;
}
}
if (silence_val) {
if (switch_core_codec_init(&silence_codec,
"L16",
NULL,
read_impl.actual_samples_per_second,
read_impl.microseconds_per_packet / 1000,
1,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL, switch_core_session_get_pool(session_a)) != SWITCH_STATUS_SUCCESS) {
silence_val = 0;
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "Setup generated silence from %s to %s at %d\n", switch_channel_get_name(chan_a),
switch_channel_get_name(chan_b), silence_val);
silence_frame.codec = &silence_codec;
silence_frame.data = silence_data;
silence_frame.buflen = sizeof(silence_data);
silence_frame.datalen = read_impl.decoded_bytes_per_packet;
silence_frame.samples = silence_frame.datalen / sizeof(int16_t);
}
}
}
bridge_filter_dtmf = switch_true(switch_channel_get_variable(chan_a, "bridge_filter_dtmf"));
for (;;) {
switch_channel_state_t b_state;
switch_status_t status;
switch_event_t *event;
if (switch_channel_test_flag(chan_a, CF_TRANSFER)) {
data->clean_exit = 1;
}
if (data->clean_exit || switch_channel_test_flag(chan_b, CF_TRANSFER)) {
switch_channel_clear_flag(chan_a, CF_HOLD);
switch_channel_clear_flag(chan_a, CF_SUSPEND);
goto end_of_bridge_loop;
}
if (!switch_channel_test_flag(chan_b, CF_BRIDGED)) {
goto end_of_bridge_loop;
}
if (!switch_channel_ready(chan_a)) {
if (switch_channel_up(chan_a)) {
data->clean_exit = 1;
}
goto end_of_bridge_loop;
}
if ((b_state = switch_channel_down_nosig(chan_b))) {
goto end_of_bridge_loop;
}
if (switch_channel_test_flag(chan_a, CF_HOLD_ON_BRIDGE)) {
switch_core_session_message_t hmsg = { 0 };
switch_channel_clear_flag(chan_a, CF_HOLD_ON_BRIDGE);
hmsg.message_id = SWITCH_MESSAGE_INDICATE_HOLD;
hmsg.from = __FILE__;
hmsg.numeric_arg = 1;
switch_core_session_receive_message(session_a, &hmsg);
}
if (read_frame_count > DEFAULT_LEAD_FRAMES && switch_channel_media_ack(chan_a) && switch_core_session_private_event_count(session_a)) {
switch_channel_set_flag(chan_b, CF_SUSPEND);
msg.numeric_arg = 42;
msg.string_arg = data->b_uuid;
msg.message_id = SWITCH_MESSAGE_INDICATE_UNBRIDGE;
msg.from = __FILE__;
switch_core_session_receive_message(session_a, &msg);
switch_ivr_parse_next_event(session_a);
msg.message_id = SWITCH_MESSAGE_INDICATE_BRIDGE;
switch_core_session_receive_message(session_a, &msg);
switch_channel_clear_flag(chan_b, CF_SUSPEND);
switch_core_session_kill_channel(session_b, SWITCH_SIG_BREAK);
}
switch_ivr_parse_all_messages(session_a);
if (!inner_bridge && (switch_channel_test_flag(chan_a, CF_SUSPEND) || switch_channel_test_flag(chan_b, CF_SUSPEND))) {
status = switch_core_session_read_frame(session_a, &read_frame, SWITCH_IO_FLAG_NONE, stream_id);
if (!SWITCH_READ_ACCEPTABLE(status)) {
goto end_of_bridge_loop;
}
continue;
}
#ifdef SWITCH_VIDEO_IN_THREADS
if (switch_channel_test_flag(chan_a, CF_VIDEO) && switch_channel_test_flag(chan_b, CF_VIDEO) && !vid_launch) {
vid_launch++;
vh.session_a = session_a;
vh.session_b = session_b;
vid_thread = launch_video(&vh);
}
#endif
if (read_frame_count >= DEFAULT_LEAD_FRAMES && switch_channel_media_ack(chan_a)) {
if (!exec_check) {
switch_channel_execute_on(chan_a, SWITCH_CHANNEL_EXECUTE_ON_PRE_BRIDGE_VARIABLE);
if (!inner_bridge) {
switch_channel_api_on(chan_a, SWITCH_API_BRIDGE_START_VARIABLE);
}
exec_check = 1;
}
if (exec_app) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "%s Bridge execute app %s(%s)\n",
switch_channel_get_name(chan_a), exec_app, exec_data);
switch_core_session_execute_application_async(session_a, exec_app, exec_data);
exec_app = exec_data = NULL;
}
if ((bypass_media_after_bridge || switch_channel_test_flag(chan_b, CF_BYPASS_MEDIA_AFTER_BRIDGE)) && switch_channel_test_flag(chan_a, CF_ANSWERED)
&& switch_channel_test_flag(chan_b, CF_ANSWERED)) {
switch_ivr_nomedia(switch_core_session_get_uuid(session_a), SMF_REBRIDGE);
bypass_media_after_bridge = 0;
switch_channel_clear_flag(chan_b, CF_BYPASS_MEDIA_AFTER_BRIDGE);
goto end_of_bridge_loop;
}
}
/* if 1 channel has DTMF pass it to the other */
while (switch_channel_has_dtmf(chan_a)) {
switch_dtmf_t dtmf = { 0, 0 };
if (switch_channel_dequeue_dtmf(chan_a, &dtmf) == SWITCH_STATUS_SUCCESS) {
int send_dtmf = 1;
if (input_callback) {
switch_status_t cb_status = input_callback(session_a, (void *) &dtmf, SWITCH_INPUT_TYPE_DTMF, user_data, 0);
if (cb_status == SWITCH_STATUS_IGNORE) {
send_dtmf = 0;
} else if (cb_status != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "%s ended call via DTMF\n", switch_channel_get_name(chan_a));
switch_core_session_kill_channel(session_b, SWITCH_SIG_BREAK);
goto end_of_bridge_loop;
}
}
if (bridge_filter_dtmf) {
send_dtmf = 0;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "Dropping filtered DTMF received on %s\n", switch_channel_get_name(chan_a));
}
if (send_dtmf) {
switch_core_session_send_dtmf(session_b, &dtmf);
switch_core_session_kill_channel(session_b, SWITCH_SIG_BREAK);
}
}
}
if (switch_core_session_dequeue_event(session_a, &event, SWITCH_FALSE) == SWITCH_STATUS_SUCCESS) {
if (input_callback) {
status = input_callback(session_a, event, SWITCH_INPUT_TYPE_EVENT, user_data, 0);
}
if ((event->event_id != SWITCH_EVENT_COMMAND && event->event_id != SWITCH_EVENT_MESSAGE)
|| switch_core_session_receive_event(session_b, &event) != SWITCH_STATUS_SUCCESS) {
switch_event_destroy(&event);
}
}
if (!switch_channel_test_flag(chan_a, CF_ANSWERED) && answer_limit && switch_epoch_time_now(NULL) > answer_limit) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "Answer timeout hit on %s.\n", switch_channel_get_name(chan_a));
switch_channel_hangup(chan_a, SWITCH_CAUSE_ALLOTTED_TIMEOUT);
}
if (!switch_channel_test_flag(chan_a, CF_ANSWERED)) {
if (originator) {
if (!ans_b && switch_channel_test_flag(chan_b, CF_ANSWERED)) {
switch_channel_pass_callee_id(chan_b, chan_a);
if (switch_channel_answer(chan_a) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "%s Media Establishment Failed.\n", switch_channel_get_name(chan_a));
goto end_of_bridge_loop;
}
ans_a = 1;
} else if (!pre_b && switch_channel_test_flag(chan_b, CF_EARLY_MEDIA)) {
if (switch_channel_pre_answer(chan_a) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "%s Media Establishment Failed.\n", switch_channel_get_name(chan_a));
goto end_of_bridge_loop;
}
pre_b = 1;
}
if (!pre_b) {
switch_yield(10000);
continue;
}
} else {
ans_a = switch_channel_test_flag(chan_b, CF_ANSWERED);
}
}
if (ans_a != ans_b) {
switch_channel_t *un = ans_a ? chan_b : chan_a;
switch_channel_t *a = un == chan_b ? chan_a : chan_b;
if (switch_channel_direction(un) == SWITCH_CALL_DIRECTION_INBOUND) {
if (switch_channel_direction(a) == SWITCH_CALL_DIRECTION_OUTBOUND || (un == chan_a && !originator)) {
switch_channel_pass_callee_id(a, un);
}
if (switch_channel_answer(un) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "%s Media Establishment Failed.\n", switch_channel_get_name(un));
goto end_of_bridge_loop;
}
if (ans_a) {
ans_b = 1;
} else {
ans_a = 1;
}
}
}
if (originator && !ans_b) ans_b = switch_channel_test_flag(chan_b, CF_ANSWERED);
if (originator && !sent_update && ans_a && ans_b && switch_channel_media_ack(chan_a) && switch_channel_media_ack(chan_b)) {
switch_ivr_bridge_display(session_a, session_b);
sent_update = 1;
}
#ifndef SWITCH_VIDEO_IN_THREADS
if (switch_channel_test_flag(chan_a, CF_VIDEO) && switch_channel_test_flag(chan_b, CF_VIDEO)) {
/* read video from 1 channel and write it to the other */
status = switch_core_session_read_video_frame(session_a, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
goto end_of_bridge_loop;
}
switch_core_session_write_video_frame(session_b, read_frame, SWITCH_IO_FLAG_NONE, 0);
}
#endif
/* read audio from 1 channel and write it to the other */
status = switch_core_session_read_frame(session_a, &read_frame, SWITCH_IO_FLAG_NONE, stream_id);
if (SWITCH_READ_ACCEPTABLE(status)) {
read_frame_count++;
if (switch_test_flag(read_frame, SFF_CNG)) {
if (silence_val) {
switch_generate_sln_silence((int16_t *) silence_frame.data, silence_frame.samples, silence_val);
read_frame = &silence_frame;
} else if (!switch_channel_test_flag(chan_b, CF_ACCEPT_CNG)) {
continue;
}
}
if (switch_channel_test_flag(chan_a, CF_BRIDGE_NOWRITE)) {
continue;
}
if (status != SWITCH_STATUS_BREAK && !switch_channel_test_flag(chan_a, CF_HOLD)) {
if (switch_core_session_write_frame(session_b, read_frame, SWITCH_IO_FLAG_NONE, stream_id) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG,
"%s ending bridge by request from write function\n", switch_channel_get_name(chan_b));
goto end_of_bridge_loop;
}
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "%s ending bridge by request from read function\n", switch_channel_get_name(chan_a));
goto end_of_bridge_loop;
}
}
end_of_bridge_loop:
#ifdef SWITCH_VIDEO_IN_THREADS
if (vid_thread) {
vh.up = -1;
switch_channel_set_flag(chan_a, CF_NOT_READY);
switch_channel_set_flag(chan_b, CF_NOT_READY);
switch_core_session_kill_channel(session_a, SWITCH_SIG_BREAK);
switch_core_session_kill_channel(session_b, SWITCH_SIG_BREAK);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "Ending video thread.\n");
}
#endif
if (silence_val) {
switch_core_codec_destroy(&silence_codec);
}
switch_channel_execute_on(chan_a, SWITCH_CHANNEL_EXECUTE_ON_POST_BRIDGE_VARIABLE);
if (!inner_bridge) {
switch_channel_api_on(chan_a, SWITCH_API_BRIDGE_END_VARIABLE);
}
if (!inner_bridge && switch_channel_up_nosig(chan_a)) {
if ((app_name = switch_channel_get_variable(chan_a, SWITCH_EXEC_AFTER_BRIDGE_APP_VARIABLE))) {
switch_caller_extension_t *extension = NULL;
if ((extension = switch_caller_extension_new(session_a, app_name, app_name)) == 0) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_CRIT, "memory error!\n");
goto end;
}
app_arg = switch_channel_get_variable(chan_a, SWITCH_EXEC_AFTER_BRIDGE_ARG_VARIABLE);
switch_caller_extension_add_application(session_a, extension, (char *) app_name, app_arg);
switch_channel_set_caller_extension(chan_a, extension);
if (switch_channel_get_state(chan_a) == CS_EXECUTE) {
switch_channel_set_flag(chan_a, CF_RESET);
} else {
switch_channel_set_state(chan_a, CS_EXECUTE);
}
}
}
end:
#ifdef SWITCH_VIDEO_IN_THREADS
if (vid_thread) {
switch_status_t st;
if (vh.up == 1) {
vh.up = -1;
}
switch_channel_set_flag(chan_a, CF_VIDEO_BREAK);
switch_channel_set_flag(chan_b, CF_VIDEO_BREAK);
switch_core_session_kill_channel(session_a, SWITCH_SIG_BREAK);
switch_core_session_kill_channel(session_b, SWITCH_SIG_BREAK);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "Ending video thread.\n");
switch_thread_join(&st, vid_thread);
switch_channel_clear_flag(chan_a, CF_NOT_READY);
switch_channel_clear_flag(chan_b, CF_NOT_READY);
}
#endif
switch_core_session_reset(session_a, SWITCH_TRUE, SWITCH_TRUE);
switch_channel_set_variable(chan_a, SWITCH_BRIDGE_VARIABLE, NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session_a), SWITCH_LOG_DEBUG, "BRIDGE THREAD DONE [%s]\n", switch_channel_get_name(chan_a));
switch_channel_clear_flag(chan_a, CF_BRIDGED);
if (switch_channel_test_flag(chan_a, CF_LEG_HOLDING) || switch_channel_test_flag(chan_a, CF_HANGUP_HELD)) {
if (switch_channel_ready(chan_b) && switch_channel_get_state(chan_b) != CS_PARK && !data->other_leg_data->clean_exit) {
const char *ext = switch_channel_get_variable(chan_a, "hold_hangup_xfer_exten");
switch_channel_stop_broadcast(chan_b);
if (zstr(ext)) {
switch_call_cause_t cause = switch_channel_get_cause(chan_b);
if (cause == SWITCH_CAUSE_NONE) {
cause = SWITCH_CAUSE_NORMAL_CLEARING;
}
switch_channel_hangup(chan_b, cause);
} else {
switch_channel_set_variable(chan_b, SWITCH_TRANSFER_AFTER_BRIDGE_VARIABLE, ext);
}
}
if (switch_channel_test_flag(chan_a, CF_LEG_HOLDING)) {
switch_channel_mark_hold(chan_a, SWITCH_FALSE);
}
}
if (switch_channel_test_flag(chan_a, CF_INTERCEPTED)) {
switch_channel_set_flag(chan_b, CF_INTERCEPT);
}
switch_core_session_kill_channel(session_b, SWITCH_SIG_BREAK);
data->done = 1;
switch_core_session_rwunlock(session_b);
return NULL;
}
static void transfer_after_bridge(switch_core_session_t *session, const char *where)
{
int argc;
char *argv[4] = { 0 };
char *mydata;
switch_channel_set_variable(switch_core_session_get_channel(session), SWITCH_TRANSFER_AFTER_BRIDGE_VARIABLE, NULL);
if (!zstr(where) && (mydata = switch_core_session_strdup(session, where))) {
if ((argc = switch_separate_string(mydata, ':', argv, (sizeof(argv) / sizeof(argv[0])))) >= 1) {
switch_ivr_session_transfer(session, argv[0], argv[1], argv[2]);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "No extension specified.\n");
}
}
}
static switch_status_t audio_bridge_on_exchange_media(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_ivr_bridge_data_t *bd = switch_channel_get_private(channel, "_bridge_");
switch_channel_state_t state;
const char *var;
if (bd) {
switch_channel_set_private(channel, "_bridge_", NULL);
if (bd->session == session && *bd->b_uuid) {
audio_bridge_thread(NULL, (void *) bd);
switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
} else {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
} else {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
switch_channel_clear_state_handler(channel, &audio_bridge_peer_state_handlers);
state = switch_channel_get_state(channel);
if (state < CS_HANGUP && switch_true(switch_channel_get_variable(channel, SWITCH_PARK_AFTER_BRIDGE_VARIABLE))) {
switch_ivr_park_session(session);
} else if (state < CS_HANGUP && (var = switch_channel_get_variable(channel, SWITCH_TRANSFER_AFTER_BRIDGE_VARIABLE))) {
transfer_after_bridge(session, var);
} else {
if (!switch_channel_test_flag(channel, CF_TRANSFER) && !switch_channel_test_flag(channel, CF_REDIRECT) &&
!switch_channel_test_flag(channel, CF_XFER_ZOMBIE) && bd && !bd->clean_exit
&& state != CS_PARK && state != CS_ROUTING && state == CS_EXCHANGE_MEDIA && !switch_channel_test_flag(channel, CF_INNER_BRIDGE)) {
if (switch_channel_test_flag(channel, CF_INTERCEPTED)) {
switch_channel_clear_flag(channel, CF_INTERCEPT);
switch_channel_clear_flag(channel, CF_INTERCEPTED);
return SWITCH_STATUS_FALSE;
} else {
if (switch_channel_test_flag(channel, CF_INTERCEPT)) {
switch_channel_hangup(channel, SWITCH_CAUSE_PICKED_OFF);
} else {
if (!switch_channel_test_flag(channel, CF_ANSWERED)) {
switch_channel_hangup(channel, SWITCH_CAUSE_ORIGINATOR_CANCEL);
} else {
switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);
}
}
}
}
}
if (switch_channel_get_state(channel) == CS_EXCHANGE_MEDIA) {
switch_channel_set_variable(channel, "park_timeout", "3");
switch_channel_set_state(channel, CS_PARK);
}
return SWITCH_STATUS_FALSE;
}
static switch_status_t audio_bridge_on_routing(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CUSTOM ROUTING\n", switch_channel_get_name(channel));
/* put the channel in a passive state so we can loop audio to it */
switch_channel_set_state(channel, CS_CONSUME_MEDIA);
return SWITCH_STATUS_FALSE;
}
static switch_status_t audio_bridge_on_consume_media(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CUSTOM HOLD\n", switch_channel_get_name(channel));
/* put the channel in a passive state so we can loop audio to it */
return SWITCH_STATUS_FALSE;
}
static const switch_state_handler_table_t audio_bridge_peer_state_handlers = {
/*.on_init */ NULL,
/*.on_routing */ audio_bridge_on_routing,
/*.on_execute */ NULL,
/*.on_hangup */ NULL,
/*.on_exchange_media */ audio_bridge_on_exchange_media,
/*.on_soft_execute */ NULL,
/*.on_consume_media */ audio_bridge_on_consume_media,
};
static switch_status_t uuid_bridge_on_reset(switch_core_session_t *session);
static switch_status_t uuid_bridge_on_hibernate(switch_core_session_t *session);
static switch_status_t uuid_bridge_on_soft_execute(switch_core_session_t *session);
static const switch_state_handler_table_t uuid_bridge_state_handlers = {
/*.on_init */ NULL,
/*.on_routing */ NULL,
/*.on_execute */ NULL,
/*.on_hangup */ NULL,
/*.on_exchange_media */ NULL,
/*.on_soft_execute */ uuid_bridge_on_soft_execute,
/*.on_consume_media */ uuid_bridge_on_hibernate,
/*.on_hibernate */ uuid_bridge_on_hibernate,
/*.on_reset */ uuid_bridge_on_reset
};
static switch_status_t uuid_bridge_on_reset(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CUSTOM RESET\n", switch_channel_get_name(channel));
switch_channel_clear_flag(channel, CF_ORIGINATING);
cleanup_proxy_mode_b(session);
if (switch_channel_test_flag(channel, CF_UUID_BRIDGE_ORIGINATOR)) {
switch_channel_set_state(channel, CS_SOFT_EXECUTE);
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t uuid_bridge_on_hibernate(switch_core_session_t *session)
{
switch_channel_set_state(switch_core_session_get_channel(session), CS_RESET);
return SWITCH_STATUS_FALSE;
}
static switch_status_t uuid_bridge_on_soft_execute(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_core_session_t *other_session = NULL;
const char *other_uuid = NULL;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CUSTOM SOFT_EXECUTE\n", switch_channel_get_name(channel));
switch_channel_clear_state_handler(channel, &uuid_bridge_state_handlers);
if (!switch_channel_test_flag(channel, CF_UUID_BRIDGE_ORIGINATOR)) {
return SWITCH_STATUS_SUCCESS;
}
if ((other_uuid = switch_channel_get_variable(channel, SWITCH_UUID_BRIDGE)) && (other_session = switch_core_session_locate(other_uuid))) {
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
switch_event_t *event;
int ready_a, ready_b;
switch_channel_state_t state, running_state;
int max = 1000, loops = max;
switch_channel_set_variable(channel, SWITCH_UUID_BRIDGE, NULL);
for (;;) {
state = switch_channel_get_state(other_channel);
running_state = switch_channel_get_running_state(other_channel);
if (switch_channel_down_nosig(other_channel) || switch_channel_down(channel)) {
break;
}
if (state < CS_HANGUP && state == running_state) {
if (--loops < 1) {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
switch_channel_hangup(other_channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
if (running_state == CS_RESET) {
switch_channel_set_state(other_channel, CS_SOFT_EXECUTE);
}
if (running_state == CS_SOFT_EXECUTE) {
if (switch_channel_test_flag(other_channel, CF_UUID_BRIDGE_ORIGINATOR)) {
goto done;
} else {
break;
}
}
} else {
loops = max;
}
switch_yield(20000);
}
switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
if (switch_ivr_wait_for_answer(session, other_session) != SWITCH_STATUS_SUCCESS) {
if (switch_true(switch_channel_get_variable(channel, "uuid_bridge_continue_on_cancel"))) {
switch_channel_set_state(channel, CS_EXECUTE);
} else if (switch_true(switch_channel_get_variable(channel, "uuid_bridge_park_on_cancel"))) {
switch_ivr_park_session(session);
} else if (!switch_channel_test_flag(channel, CF_TRANSFER)) {
switch_channel_hangup(channel, SWITCH_CAUSE_ORIGINATOR_CANCEL);
}
goto done;
}
ready_a = switch_channel_ready(channel);
ready_b = switch_channel_ready(other_channel);
if (!ready_a || !ready_b) {
if (!ready_a) {
switch_channel_hangup(other_channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
if (!ready_b) {
const char *cid = switch_channel_get_variable(other_channel, "rdnis");
if (ready_a && cid) {
switch_ivr_session_transfer(session, cid, NULL, NULL);
} else {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
}
goto done;
}
/* fire events that will change the data table from "show channels" */
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_EXECUTE) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application", "uuid_bridge");
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application-Data", switch_core_session_get_uuid(other_session));
switch_event_fire(&event);
}
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_EXECUTE) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(other_channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application", "uuid_bridge");
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application-Data", switch_core_session_get_uuid(session));
switch_event_fire(&event);
}
switch_ivr_multi_threaded_bridge(session, other_session, NULL, NULL, NULL);
state = switch_channel_get_state(channel);
if (!switch_channel_test_flag(channel, CF_TRANSFER) &&
!switch_channel_test_flag(channel, CF_REDIRECT) && state < CS_HANGUP && state != CS_ROUTING && state != CS_PARK) {
switch_channel_set_state(channel, CS_EXECUTE);
}
} else {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
done:
if (other_session) {
switch_core_session_rwunlock(other_session);
other_session = NULL;
}
switch_channel_clear_flag(channel, CF_UUID_BRIDGE_ORIGINATOR);
return SWITCH_STATUS_FALSE;
}
static switch_status_t sb_on_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf, switch_dtmf_direction_t direction)
{
switch_channel_t *channel = NULL;
char *key;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
if ((key = (char *) switch_channel_get_private(channel, "__bridge_term_key")) && dtmf->digit == *key) {
const char *uuid;
switch_core_session_t *other_session;
if (switch_channel_test_flag(channel, CF_BRIDGE_ORIGINATOR)) {
switch_channel_set_state(channel, CS_EXECUTE);
} else {
if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE)) && (other_session = switch_core_session_locate(uuid))) {
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
switch_channel_set_state(other_channel, CS_EXECUTE);
switch_core_session_rwunlock(other_session);
} else {
return SWITCH_STATUS_SUCCESS;
}
}
return SWITCH_STATUS_FALSE;
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t hanguphook(switch_core_session_t *session)
{
switch_core_session_message_t *msg = NULL;
switch_channel_t *channel = NULL;
switch_event_t *event;
channel = switch_core_session_get_channel(session);
if (switch_channel_test_flag(channel, CF_BRIDGE_ORIGINATOR)) {
switch_channel_clear_flag_recursive(channel, CF_BRIDGE_ORIGINATOR);
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_UNBRIDGE) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
}
msg = switch_core_session_alloc(session, sizeof(*msg));
MESSAGE_STAMP_FFL(msg);
msg->message_id = SWITCH_MESSAGE_INDICATE_UNBRIDGE;
msg->from = __FILE__;
msg->string_arg = switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE);
switch_core_session_queue_message(session, msg);
switch_core_event_hook_remove_state_change(session, hanguphook);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t signal_bridge_on_hibernate(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
const char *key;
switch_core_session_message_t msg = { 0 };
switch_event_t *event = NULL;
switch_ivr_dmachine_t *dmachine[2] = { 0 };
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
msg.message_id = SWITCH_MESSAGE_INDICATE_BRIDGE;
msg.from = __FILE__;
msg.string_arg = switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE);
switch_core_event_hook_add_state_change(session, hanguphook);
switch_core_session_receive_message(session, &msg);
if ((key = switch_channel_get_variable(channel, "bridge_terminate_key"))) {
switch_channel_set_private(channel, "__bridge_term_key", switch_core_session_strdup(session, key));
switch_core_event_hook_add_recv_dtmf(session, sb_on_dtmf);
}
switch_channel_set_variable(channel, SWITCH_BRIDGE_VARIABLE, switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE));
switch_channel_set_variable(channel, SWITCH_LAST_BRIDGE_VARIABLE, switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE));
switch_channel_set_bridge_time(channel);
if (switch_channel_test_flag(channel, CF_BRIDGE_ORIGINATOR)) {
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_BRIDGE) == SWITCH_STATUS_SUCCESS) {
switch_core_session_t *other_session;
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-A-Unique-ID", switch_core_session_get_uuid(session));
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-B-Unique-ID", msg.string_arg);
switch_channel_event_set_data(channel, event);
if ((other_session = switch_core_session_locate(msg.string_arg))) {
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
switch_channel_set_bridge_time(other_channel);
switch_event_add_presence_data_cols(other_channel, event, "Bridge-B-PD-");
switch_core_session_rwunlock(other_session);
}
switch_event_fire(&event);
}
}
if ((dmachine[0] = switch_core_session_get_dmachine(session, DIGIT_TARGET_SELF)) ||
(dmachine[1] = switch_core_session_get_dmachine(session, DIGIT_TARGET_PEER))) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG,
"%s not hibernating due to active digit parser, semi-hibernation engaged.\n", switch_channel_get_name(channel));
while(switch_channel_ready(channel) && switch_channel_get_state(channel) == CS_HIBERNATE) {
if (!switch_channel_test_flag(channel, CF_BROADCAST)) {
if (dmachine[0]) {
switch_ivr_dmachine_ping(dmachine[0], NULL);
}
if (dmachine[1]) {
switch_ivr_dmachine_ping(dmachine[1], NULL);
}
}
switch_yield(20000);
switch_ivr_parse_all_messages(session);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t signal_bridge_on_hangup(switch_core_session_t *session)
{
const char *uuid;
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_core_session_t *other_session;
switch_event_t *event;
if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE))) {
switch_channel_set_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE, NULL);
}
if (switch_channel_get_private(channel, "__bridge_term_key")) {
switch_core_event_hook_remove_recv_dtmf(session, sb_on_dtmf);
switch_channel_set_private(channel, "__bridge_term_key", NULL);
}
switch_channel_set_variable(channel, SWITCH_BRIDGE_VARIABLE, NULL);
if (uuid && (other_session = switch_core_session_locate(uuid))) {
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
const char *sbv = switch_channel_get_variable(other_channel, SWITCH_SIGNAL_BRIDGE_VARIABLE);
const char *var;
if (!zstr(sbv) && !strcmp(sbv, switch_core_session_get_uuid(session))) {
switch_channel_set_variable(other_channel, SWITCH_SIGNAL_BRIDGE_VARIABLE, NULL);
switch_channel_set_variable(other_channel, SWITCH_BRIDGE_VARIABLE, NULL);
switch_channel_set_variable(other_channel, "call_uuid", switch_core_session_get_uuid(other_session));
if (switch_channel_up_nosig(other_channel)) {
if (switch_true(switch_channel_get_variable(other_channel, SWITCH_PARK_AFTER_BRIDGE_VARIABLE))) {
switch_ivr_park_session(other_session);
} else if ((var = switch_channel_get_variable(other_channel, SWITCH_TRANSFER_AFTER_BRIDGE_VARIABLE))) {
transfer_after_bridge(other_session, var);
}
if (switch_channel_test_flag(other_channel, CF_BRIDGE_ORIGINATOR)) {
if (switch_channel_test_flag(channel, CF_ANSWERED) &&
switch_true(switch_channel_get_variable(other_channel, SWITCH_HANGUP_AFTER_BRIDGE_VARIABLE))) {
if (switch_channel_test_flag(channel, CF_INTERCEPTED)) {
switch_channel_set_flag(other_channel, CF_INTERCEPT);
}
switch_channel_hangup(other_channel, switch_channel_get_cause(channel));
} else {
if (!switch_channel_test_flag(channel, CF_ANSWERED)) {
switch_channel_handle_cause(other_channel, switch_channel_get_cause(channel));
}
switch_channel_set_state(other_channel, CS_EXECUTE);
}
} else {
switch_channel_hangup(other_channel, switch_channel_get_cause(channel));
}
}
}
if (switch_channel_test_flag(channel, CF_BRIDGE_ORIGINATOR)) {
switch_channel_clear_flag_recursive(channel, CF_BRIDGE_ORIGINATOR);
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_UNBRIDGE) == SWITCH_STATUS_SUCCESS) {
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-A-Unique-ID", switch_core_session_get_uuid(session));
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-B-Unique-ID", uuid);
switch_event_add_presence_data_cols(other_channel, event, "Bridge-B-PD-");
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
}
switch_core_session_rwunlock(other_session);
} else {
if (switch_channel_test_flag(channel, CF_BRIDGE_ORIGINATOR)) {
switch_channel_clear_flag_recursive(channel, CF_BRIDGE_ORIGINATOR);
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_UNBRIDGE) == SWITCH_STATUS_SUCCESS) {
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-A-Unique-ID", switch_core_session_get_uuid(session));
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-B-Unique-ID", uuid);
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
}
}
return SWITCH_STATUS_SUCCESS;
}
static const switch_state_handler_table_t signal_bridge_state_handlers = {
/*.on_init */ NULL,
/*.on_routing */ NULL,
/*.on_execute */ NULL,
/*.on_hangup */ signal_bridge_on_hangup,
/*.on_exchange_media */ NULL,
/*.on_soft_execute */ NULL,
/*.on_consume_media */ NULL,
/*.on_hibernate */ signal_bridge_on_hibernate
};
static void check_bridge_export(switch_channel_t *channel, switch_channel_t *peer_channel)
{
switch_caller_profile_t *originator_cp, *originatee_cp;
originator_cp = switch_channel_get_caller_profile(channel);
originatee_cp = switch_channel_get_caller_profile(peer_channel);
originator_cp->callee_id_name = switch_core_strdup(originator_cp->pool, originatee_cp->callee_id_name);
originator_cp->callee_id_number = switch_core_strdup(originator_cp->pool, originatee_cp->callee_id_number);
switch_channel_process_export(peer_channel, channel, NULL, SWITCH_BRIDGE_EXPORT_VARS_VARIABLE);
switch_channel_process_export(channel, peer_channel, NULL, SWITCH_BRIDGE_EXPORT_VARS_VARIABLE);
}
SWITCH_DECLARE(switch_status_t) switch_ivr_signal_bridge(switch_core_session_t *session, switch_core_session_t *peer_session)
{
switch_channel_t *caller_channel = switch_core_session_get_channel(session);
switch_channel_t *peer_channel = switch_core_session_get_channel(peer_session);
switch_event_t *event;
if (switch_channel_down_nosig(peer_channel)) {
switch_channel_hangup(caller_channel, switch_channel_get_cause(peer_channel));
return SWITCH_STATUS_FALSE;
}
if (!switch_channel_up_nosig(caller_channel)) {
switch_channel_hangup(peer_channel, SWITCH_CAUSE_ORIGINATOR_CANCEL);
return SWITCH_STATUS_FALSE;
}
check_bridge_export(caller_channel, peer_channel);
switch_channel_set_flag_recursive(caller_channel, CF_SIGNAL_BRIDGE_TTL);
switch_channel_set_flag_recursive(peer_channel, CF_SIGNAL_BRIDGE_TTL);
switch_channel_set_variable(caller_channel, SWITCH_SIGNAL_BRIDGE_VARIABLE, switch_core_session_get_uuid(peer_session));
switch_channel_set_variable(peer_channel, SWITCH_SIGNAL_BRIDGE_VARIABLE, switch_core_session_get_uuid(session));
switch_channel_set_variable(peer_channel, "call_uuid", switch_core_session_get_uuid(session));
switch_channel_set_flag_recursive(caller_channel, CF_BRIDGE_ORIGINATOR);
switch_channel_clear_flag(peer_channel, CF_BRIDGE_ORIGINATOR);
switch_channel_clear_state_handler(caller_channel, NULL);
switch_channel_clear_state_handler(peer_channel, NULL);
switch_channel_add_state_handler(caller_channel, &signal_bridge_state_handlers);
switch_channel_add_state_handler(peer_channel, &signal_bridge_state_handlers);
switch_channel_set_variable(caller_channel, "signal_bridge", "true");
switch_channel_set_variable(peer_channel, "signal_bridge", "true");
/* fire events that will change the data table from "show channels" */
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_EXECUTE) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(caller_channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application", "signal_bridge");
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application-Data", switch_core_session_get_uuid(peer_session));
switch_event_fire(&event);
}
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_EXECUTE) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(peer_channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application", "signal_bridge");
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Application-Data", switch_core_session_get_uuid(session));
switch_event_fire(&event);
}
switch_channel_set_state_flag(caller_channel, CF_RESET);
switch_channel_set_state_flag(peer_channel, CF_RESET);
switch_channel_set_state(caller_channel, CS_HIBERNATE);
switch_channel_set_state(peer_channel, CS_HIBERNATE);
#if 0
if (switch_channel_test_flag(caller_channel, CF_BRIDGED)) {
switch_channel_set_flag(caller_channel, CF_TRANSFER);
switch_channel_set_flag(peer_channel, CF_TRANSFER);
}
#endif
switch_ivr_bridge_display(session, peer_session);
return SWITCH_STATUS_SUCCESS;
}
static void abort_call(switch_channel_t *caller_channel, switch_channel_t *peer_channel)
{
switch_call_cause_t cause = switch_channel_get_cause(caller_channel);
if (!cause) {
cause = SWITCH_CAUSE_ORIGINATOR_CANCEL;
}
switch_channel_hangup(peer_channel, cause);
}
SWITCH_DECLARE(switch_status_t) switch_ivr_multi_threaded_bridge(switch_core_session_t *session,
switch_core_session_t *peer_session,
switch_input_callback_function_t input_callback, void *session_data,
void *peer_session_data)
{
switch_ivr_bridge_data_t *a_leg = switch_core_session_alloc(session, sizeof(*a_leg));
switch_ivr_bridge_data_t *b_leg = switch_core_session_alloc(peer_session, sizeof(*b_leg));
switch_channel_t *caller_channel = switch_core_session_get_channel(session);
switch_channel_t *peer_channel = switch_core_session_get_channel(peer_session);
int stream_id = 0;
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_channel_state_t state;
switch_event_t *event;
int br = 0;
int inner_bridge = switch_channel_test_flag(caller_channel, CF_INNER_BRIDGE);
const char *var;
switch_call_cause_t cause;
switch_core_session_message_t msg = { 0 };
if (switch_channel_test_flag(caller_channel, CF_PROXY_MODE)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Call has no media... Redirecting to signal bridge.\n");
return switch_ivr_signal_bridge(session, peer_session);
}
check_bridge_export(caller_channel, peer_channel);
switch_channel_set_flag_recursive(caller_channel, CF_MEDIA_BRIDGE_TTL);
switch_channel_set_flag_recursive(peer_channel, CF_MEDIA_BRIDGE_TTL);
switch_channel_set_flag_recursive(caller_channel, CF_BRIDGE_ORIGINATOR);
switch_channel_clear_flag(peer_channel, CF_BRIDGE_ORIGINATOR);
switch_channel_audio_sync(caller_channel);
switch_channel_audio_sync(peer_channel);
b_leg->session = peer_session;
switch_copy_string(b_leg->b_uuid, switch_core_session_get_uuid(session), sizeof(b_leg->b_uuid));
b_leg->stream_id = stream_id;
b_leg->input_callback = input_callback;
b_leg->session_data = peer_session_data;
b_leg->clean_exit = 0;
b_leg->other_leg_data = a_leg;
a_leg->session = session;
switch_copy_string(a_leg->b_uuid, switch_core_session_get_uuid(peer_session), sizeof(a_leg->b_uuid));
a_leg->stream_id = stream_id;
a_leg->input_callback = input_callback;
a_leg->session_data = session_data;
a_leg->clean_exit = 0;
a_leg->other_leg_data = b_leg;
switch_channel_add_state_handler(peer_channel, &audio_bridge_peer_state_handlers);
if (switch_channel_test_flag(peer_channel, CF_ANSWERED) && !switch_channel_test_flag(caller_channel, CF_ANSWERED)) {
switch_channel_pass_callee_id(peer_channel, caller_channel);
switch_channel_answer(caller_channel);
}
if (switch_channel_test_flag(peer_channel, CF_ANSWERED) || switch_channel_test_flag(peer_channel, CF_EARLY_MEDIA) ||
switch_channel_test_flag(peer_channel, CF_RING_READY)) {
const char *app, *data;
if (!switch_channel_ready(caller_channel)) {
abort_call(caller_channel, peer_channel);
goto done;
}
switch_channel_set_state(peer_channel, CS_CONSUME_MEDIA);
switch_channel_set_variable(peer_channel, "call_uuid", switch_core_session_get_uuid(session));
switch_channel_set_bridge_time(caller_channel);
switch_channel_set_bridge_time(peer_channel);
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_BRIDGE) == SWITCH_STATUS_SUCCESS) {
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-A-Unique-ID", switch_core_session_get_uuid(session));
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-B-Unique-ID", switch_core_session_get_uuid(peer_session));
switch_channel_event_set_data(caller_channel, event);
switch_event_add_presence_data_cols(peer_channel, event, "Bridge-B-PD-");
switch_event_fire(&event);
br = 1;
}
if (switch_core_session_read_lock(peer_session) == SWITCH_STATUS_SUCCESS) {
switch_channel_set_variable(caller_channel, SWITCH_BRIDGE_VARIABLE, switch_core_session_get_uuid(peer_session));
switch_channel_set_variable(peer_channel, SWITCH_BRIDGE_VARIABLE, switch_core_session_get_uuid(session));
switch_channel_set_variable(caller_channel, SWITCH_LAST_BRIDGE_VARIABLE, switch_core_session_get_uuid(peer_session));
switch_channel_set_variable(peer_channel, SWITCH_LAST_BRIDGE_VARIABLE, switch_core_session_get_uuid(session));
if (!switch_channel_ready(caller_channel)) {
abort_call(caller_channel, peer_channel);
switch_core_session_rwunlock(peer_session);
goto done;
}
if (!switch_channel_media_ready(caller_channel) ||
(!switch_channel_test_flag(peer_channel, CF_ANSWERED) && !switch_channel_test_flag(peer_channel, CF_EARLY_MEDIA))) {
if ((status = switch_ivr_wait_for_answer(session, peer_session)) != SWITCH_STATUS_SUCCESS || !switch_channel_ready(caller_channel)) {
switch_channel_state_t w_state = switch_channel_get_state(caller_channel);
switch_channel_hangup(peer_channel, SWITCH_CAUSE_ALLOTTED_TIMEOUT);
if (w_state < CS_HANGUP && w_state != CS_ROUTING && w_state != CS_PARK &&
!switch_channel_test_flag(caller_channel, CF_REDIRECT) && !switch_channel_test_flag(caller_channel, CF_TRANSFER) &&
w_state != CS_EXECUTE) {
const char *ext = switch_channel_get_variable(peer_channel, "original_destination_number");
if (!ext) {
ext = switch_channel_get_variable(peer_channel, "destination_number");
}
if (ext) {
switch_ivr_session_transfer(session, ext, NULL, NULL);
} else {
switch_channel_hangup(caller_channel, SWITCH_CAUSE_ALLOTTED_TIMEOUT);
}
}
abort_call(caller_channel, peer_channel);
switch_core_session_rwunlock(peer_session);
goto done;
}
}
if (switch_channel_test_flag(peer_channel, CF_ANSWERED) && !switch_channel_test_flag(caller_channel, CF_ANSWERED)) {
switch_channel_answer(caller_channel);
}
switch_channel_wait_for_flag(peer_channel, CF_BROADCAST, SWITCH_FALSE, 10000, caller_channel);
switch_ivr_parse_all_events(peer_session);
switch_ivr_parse_all_events(session);
msg.message_id = SWITCH_MESSAGE_INDICATE_BRIDGE;
msg.from = __FILE__;
msg.string_arg = switch_core_session_strdup(peer_session, switch_core_session_get_uuid(session));
if (switch_core_session_receive_message(peer_session, &msg) != SWITCH_STATUS_SUCCESS) {
status = SWITCH_STATUS_FALSE;
abort_call(caller_channel, peer_channel);
switch_core_session_rwunlock(peer_session);
goto done;
}
msg.string_arg = switch_core_session_strdup(session, switch_core_session_get_uuid(peer_session));
if (switch_core_session_receive_message(session, &msg) != SWITCH_STATUS_SUCCESS) {
status = SWITCH_STATUS_FALSE;
abort_call(caller_channel, peer_channel);
switch_core_session_rwunlock(peer_session);
goto done;
}
switch_channel_set_variable(caller_channel, SWITCH_BRIDGE_CHANNEL_VARIABLE, switch_channel_get_name(peer_channel));
switch_channel_set_variable(caller_channel, SWITCH_BRIDGE_UUID_VARIABLE, switch_core_session_get_uuid(peer_session));
switch_channel_set_variable(caller_channel, SWITCH_SIGNAL_BOND_VARIABLE, switch_core_session_get_uuid(peer_session));
switch_channel_set_variable(peer_channel, SWITCH_BRIDGE_CHANNEL_VARIABLE, switch_channel_get_name(caller_channel));
switch_channel_set_variable(peer_channel, SWITCH_BRIDGE_UUID_VARIABLE, switch_core_session_get_uuid(session));
switch_channel_set_variable(peer_channel, SWITCH_SIGNAL_BOND_VARIABLE, switch_core_session_get_uuid(session));
if ((app = switch_channel_get_variable(caller_channel, "bridge_pre_execute_aleg_app"))) {
switch_channel_set_variable(caller_channel, "bridge_pre_execute_app", app);
if ((data = switch_channel_get_variable(caller_channel, "bridge_pre_execute_aleg_data"))) {
switch_channel_set_variable(caller_channel, "bridge_pre_execute_data", data);
}
}
if ((app = switch_channel_get_variable(caller_channel, "bridge_pre_execute_bleg_app"))) {
switch_channel_set_variable(peer_channel, "bridge_pre_execute_app", app);
if ((data = switch_channel_get_variable(caller_channel, "bridge_pre_execute_bleg_data"))) {
switch_channel_set_variable(peer_channel, "bridge_pre_execute_data", data);
}
}
switch_channel_set_private(peer_channel, "_bridge_", b_leg);
switch_channel_set_state(peer_channel, CS_EXCHANGE_MEDIA);
audio_bridge_thread(NULL, (void *) a_leg);
switch_channel_clear_flag_recursive(caller_channel, CF_BRIDGE_ORIGINATOR);
switch_channel_stop_broadcast(peer_channel);
while (switch_channel_get_state(peer_channel) == CS_EXCHANGE_MEDIA) {
switch_ivr_parse_all_messages(session);
switch_cond_next();
}
if (inner_bridge) {
if (switch_channel_ready(caller_channel)) {
switch_channel_set_flag(caller_channel, CF_BRIDGED);
}
if (switch_channel_ready(peer_channel)) {
switch_channel_set_flag(peer_channel, CF_BRIDGED);
}
}
if ((cause = switch_channel_get_cause(caller_channel))) {
switch_channel_set_variable(peer_channel, SWITCH_BRIDGE_HANGUP_CAUSE_VARIABLE, switch_channel_cause2str(cause));
}
if ((cause = switch_channel_get_cause(peer_channel))) {
switch_channel_set_variable(caller_channel, SWITCH_BRIDGE_HANGUP_CAUSE_VARIABLE, switch_channel_cause2str(cause));
}
if (switch_channel_down_nosig(peer_channel)) {
switch_bool_t copy_xml_cdr = switch_true(switch_channel_get_variable(peer_channel, SWITCH_COPY_XML_CDR_VARIABLE));
switch_bool_t copy_json_cdr = switch_true(switch_channel_get_variable(peer_channel, SWITCH_COPY_JSON_CDR_VARIABLE));
if (copy_xml_cdr || copy_json_cdr) {
char *cdr_text = NULL;
switch_channel_wait_for_state(peer_channel, caller_channel, CS_DESTROY);
if (copy_xml_cdr) {
switch_xml_t cdr = NULL;
if (switch_ivr_generate_xml_cdr(peer_session, &cdr) == SWITCH_STATUS_SUCCESS) {
cdr_text = switch_xml_toxml(cdr, SWITCH_FALSE);
switch_xml_free(cdr);
}
}
if (copy_json_cdr) {
cJSON *cdr = NULL;
if (switch_ivr_generate_json_cdr(peer_session, &cdr, SWITCH_TRUE) == SWITCH_STATUS_SUCCESS) {
cdr_text = cJSON_PrintUnformatted(cdr);
cJSON_Delete(cdr);
}
}
if (cdr_text) {
switch_channel_set_variable(caller_channel, "b_leg_cdr", cdr_text);
switch_channel_set_variable_name_printf(caller_channel, cdr_text, "b_leg_cdr_%s", switch_core_session_get_uuid(peer_session));
switch_safe_free(cdr_text);
}
}
}
switch_core_session_rwunlock(peer_session);
} else {
status = SWITCH_STATUS_FALSE;
}
} else {
status = SWITCH_STATUS_FALSE;
}
if (status != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "Bridge Failed %s->%s\n",
switch_channel_get_name(caller_channel), switch_channel_get_name(peer_channel)
);
switch_channel_hangup(peer_channel, SWITCH_CAUSE_NO_ANSWER);
}
done:
switch_channel_set_variable(peer_channel, "call_uuid", switch_core_session_get_uuid(peer_session));
if (br && switch_event_create(&event, SWITCH_EVENT_CHANNEL_UNBRIDGE) == SWITCH_STATUS_SUCCESS) {
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-A-Unique-ID", switch_core_session_get_uuid(session));
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Bridge-B-Unique-ID", switch_core_session_get_uuid(peer_session));
switch_channel_event_set_data(caller_channel, event);
switch_event_add_presence_data_cols(peer_channel, event, "Bridge-B-PD-");
switch_event_fire(&event);
}
msg.message_id = SWITCH_MESSAGE_INDICATE_UNBRIDGE;
msg.from = __FILE__;
msg.string_arg = switch_core_session_strdup(peer_session, switch_core_session_get_uuid(session));
switch_core_session_receive_message(peer_session, &msg);
msg.string_arg = switch_core_session_strdup(session, switch_core_session_get_uuid(peer_session));
switch_core_session_receive_message(session, &msg);
state = switch_channel_get_state(caller_channel);
if (!switch_channel_test_flag(caller_channel, CF_TRANSFER) && !switch_channel_test_flag(caller_channel, CF_REDIRECT) &&
!switch_channel_test_flag(caller_channel, CF_XFER_ZOMBIE) && !a_leg->clean_exit && !inner_bridge) {
switch_call_cause_t cause = switch_channel_get_cause(peer_channel);
const char *hup = switch_channel_get_variable(caller_channel, SWITCH_HANGUP_AFTER_BRIDGE_VARIABLE);
int explicit = 0;
if (cause == SWITCH_CAUSE_NONE) {
cause = SWITCH_CAUSE_NORMAL_CLEARING;
}
if (hup) {
explicit = !strcasecmp(hup, "explicit");
}
if (cause && !switch_channel_test_flag(peer_channel, CF_ANSWERED)) {
switch_channel_handle_cause(caller_channel, cause);
}
if (explicit) {
if (switch_channel_test_flag(peer_channel, CF_INTERCEPTED)) {
switch_channel_set_flag(peer_channel, CF_INTERCEPT);
}
switch_channel_hangup(caller_channel, cause);
}
if ((state != CS_EXECUTE && state != CS_SOFT_EXECUTE && state != CS_PARK && state != CS_ROUTING) ||
(switch_channel_test_flag(peer_channel, CF_ANSWERED) && state < CS_HANGUP)) {
if (!switch_channel_test_flag(caller_channel, CF_TRANSFER)) {
if (switch_true(switch_channel_get_variable(caller_channel, SWITCH_PARK_AFTER_BRIDGE_VARIABLE))) {
switch_ivr_park_session(session);
} else if ((var = switch_channel_get_variable(caller_channel, SWITCH_TRANSFER_AFTER_BRIDGE_VARIABLE))) {
transfer_after_bridge(session, var);
} else {
if ((switch_channel_test_flag(peer_channel, CF_ANSWERED) && switch_true(hup))) {
if (switch_channel_test_flag(peer_channel, CF_INTERCEPTED)) {
switch_channel_set_flag(peer_channel, CF_INTERCEPT);
}
switch_channel_hangup(caller_channel, cause);
}
}
}
}
}
if (switch_channel_test_flag(caller_channel, CF_REDIRECT)) {
if (switch_channel_test_flag(caller_channel, CF_RESET)) {
switch_channel_clear_flag(caller_channel, CF_RESET);
} else {
state = switch_channel_get_state(caller_channel);
if (!(state == CS_RESET || state == CS_PARK || state == CS_ROUTING)) {
switch_channel_set_state(caller_channel, CS_RESET);
}
}
}
return status;
}
static void cleanup_proxy_mode_b(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
if (switch_channel_test_flag(channel, CF_PROXY_MODE)) {
switch_ivr_media(switch_core_session_get_uuid(session), SMF_NONE);
}
}
static void cleanup_proxy_mode_a(switch_core_session_t *session)
{
switch_core_session_t *sbsession;
switch_channel_t *channel = switch_core_session_get_channel(session);
int done = 0;
if (switch_channel_test_flag(channel, CF_PROXY_MODE)) {
if (switch_core_session_get_partner(session, &sbsession) == SWITCH_STATUS_SUCCESS) {
switch_channel_t *sbchannel = switch_core_session_get_channel(sbsession);
if (switch_channel_test_flag(sbchannel, CF_PROXY_MODE)) {
/* Clear this now, otherwise will cause the one we're interested in to hang up too...*/
switch_channel_set_variable(sbchannel, SWITCH_SIGNAL_BRIDGE_VARIABLE, NULL);
switch_channel_hangup(sbchannel, SWITCH_CAUSE_ATTENDED_TRANSFER);
} else {
done = 1;
}
switch_core_session_rwunlock(sbsession);
}
}
if (done) return;
switch_channel_set_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE, NULL);
switch_channel_set_variable(channel, SWITCH_BRIDGE_VARIABLE, NULL);
switch_channel_set_variable(channel, SWITCH_BRIDGE_UUID_VARIABLE, NULL);
}
SWITCH_DECLARE(switch_status_t) switch_ivr_uuid_bridge(const char *originator_uuid, const char *originatee_uuid)
{
switch_core_session_t *originator_session, *originatee_session, *swap_session;
switch_channel_t *originator_channel, *originatee_channel, *swap_channel;
switch_status_t status = SWITCH_STATUS_FALSE;
switch_caller_profile_t *originator_cp, *originatee_cp;
switch_channel_state_t state;
if ((originator_session = switch_core_session_locate(originator_uuid))) {
if ((originatee_session = switch_core_session_locate(originatee_uuid))) {
originator_channel = switch_core_session_get_channel(originator_session);
originatee_channel = switch_core_session_get_channel(originatee_session);
if (switch_channel_test_flag(originator_channel, CF_LEG_HOLDING)) {
switch_channel_set_flag(originator_channel, CF_HOLD_ON_BRIDGE);
}
if (switch_channel_test_flag(originatee_channel, CF_LEG_HOLDING)) {
switch_channel_set_flag(originatee_channel, CF_HOLD_ON_BRIDGE);
}
if (switch_channel_direction(originator_channel) == SWITCH_CALL_DIRECTION_OUTBOUND && !switch_channel_test_flag(originator_channel, CF_DIALPLAN)) {
switch_channel_flip_cid(originator_channel);
switch_channel_set_flag(originator_channel, CF_DIALPLAN);
}
if (switch_channel_down_nosig(originator_channel)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(originator_session), SWITCH_LOG_DEBUG, "%s is hungup refusing to bridge.\n", switch_channel_get_name(originatee_channel));
switch_core_session_rwunlock(originator_session);
switch_core_session_rwunlock(originatee_session);
return SWITCH_STATUS_FALSE;
}
if (!switch_channel_media_up(originator_channel)) {
if (switch_channel_media_up(originatee_channel)) {
swap_session = originator_session;
originator_session = originatee_session;
originatee_session = swap_session;
swap_channel = originator_channel;
originator_channel = originatee_channel;
originatee_channel = swap_channel;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(originatee_session), SWITCH_LOG_WARNING, "reversing order of channels so this will work!\n");
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(originator_session), SWITCH_LOG_CRIT, "Neither channel is answered, cannot bridge them.\n");
switch_core_session_rwunlock(originator_session);
switch_core_session_rwunlock(originatee_session);
return SWITCH_STATUS_FALSE;
}
}
if (switch_channel_direction(originatee_channel) == SWITCH_CALL_DIRECTION_OUTBOUND && switch_channel_test_flag(originatee_channel, CF_DIALPLAN)) {
switch_channel_clear_flag(originatee_channel, CF_DIALPLAN);
}
cleanup_proxy_mode_a(originator_session);
cleanup_proxy_mode_a(originatee_session);
/* override transmit state for originator_channel to bridge to originatee_channel
* install pointer to originatee_session into originator_channel
* set CF_TRANSFER on both channels and change state to CS_SOFT_EXECUTE to
* interrupt anything they are already doing.
* originatee_session will fall asleep and originator_session will bridge to it
*/
switch_channel_set_flag(originator_channel, CF_REDIRECT);
switch_channel_set_flag(originatee_channel, CF_REDIRECT);
switch_channel_set_variable(originator_channel, SWITCH_UUID_BRIDGE, switch_core_session_get_uuid(originatee_session));
switch_channel_set_variable(originator_channel, SWITCH_BRIDGE_CHANNEL_VARIABLE, switch_channel_get_name(originatee_channel));
switch_channel_set_variable(originator_channel, SWITCH_BRIDGE_UUID_VARIABLE, switch_core_session_get_uuid(originatee_session));
switch_channel_set_variable(originator_channel, SWITCH_SIGNAL_BOND_VARIABLE, switch_core_session_get_uuid(originatee_session));
switch_channel_set_variable(originatee_channel, SWITCH_BRIDGE_CHANNEL_VARIABLE, switch_channel_get_name(originator_channel));
switch_channel_set_variable(originatee_channel, SWITCH_BRIDGE_UUID_VARIABLE, switch_core_session_get_uuid(originator_session));
switch_channel_set_variable(originatee_channel, SWITCH_SIGNAL_BOND_VARIABLE, switch_core_session_get_uuid(originator_session));
originator_cp = switch_channel_get_caller_profile(originator_channel);
originatee_cp = switch_channel_get_caller_profile(originatee_channel);
if (switch_channel_outbound_display(originator_channel)) {
switch_channel_invert_cid(originator_channel);
if (switch_channel_direction(originator_channel) == SWITCH_CALL_DIRECTION_INBOUND) {
switch_channel_clear_flag(originatee_channel, CF_BLEG);
}
}
if (switch_channel_inbound_display(originatee_channel)) {
switch_channel_invert_cid(originatee_channel);
if (switch_channel_direction(originatee_channel) == SWITCH_CALL_DIRECTION_INBOUND) {
switch_channel_set_flag(originatee_channel, CF_BLEG);
}
}
switch_channel_set_variable(originatee_channel, "original_destination_number", originatee_cp->destination_number);
switch_channel_set_variable(originatee_channel, "original_caller_id_name", originatee_cp->caller_id_name);
switch_channel_set_variable(originatee_channel, "original_caller_id_number", originatee_cp->caller_id_number);
switch_channel_set_variable(originator_channel, "original_destination_number", originator_cp->destination_number);
switch_channel_set_variable(originator_channel, "original_caller_id_name", originator_cp->caller_id_name);
switch_channel_set_variable(originator_channel, "original_caller_id_number", originator_cp->caller_id_number);
switch_channel_step_caller_profile(originatee_channel);
switch_channel_step_caller_profile(originator_channel);
originator_cp = switch_channel_get_caller_profile(originator_channel);
originatee_cp = switch_channel_get_caller_profile(originatee_channel);
#ifdef DEEP_DEBUG_CID
{
switch_event_t *event;
if (switch_event_create_plain(&event, SWITCH_EVENT_CHANNEL_DATA) == SWITCH_STATUS_SUCCESS) {
//switch_channel_event_set_basic_data(originator_channel, event);
switch_caller_profile_event_set_data(originator_cp, "ORIGINATOR", event);
switch_caller_profile_event_set_data(originatee_cp, "ORIGINATEE", event);
DUMP_EVENT(event);
switch_event_destroy(&event);
}
}
#endif
switch_channel_set_originator_caller_profile(originatee_channel, switch_caller_profile_clone(originatee_session, originator_cp));
switch_channel_set_originatee_caller_profile(originator_channel, switch_caller_profile_clone(originator_session, originatee_cp));
originator_cp->callee_id_name = switch_core_strdup(originator_cp->pool, originatee_cp->callee_id_name);
originator_cp->callee_id_number = switch_core_strdup(originator_cp->pool, originatee_cp->callee_id_number);
originatee_cp->caller_id_name = switch_core_strdup(originatee_cp->pool, originator_cp->caller_id_name);
originatee_cp->caller_id_number = switch_core_strdup(originatee_cp->pool, originator_cp->caller_id_number);
#ifdef DEEP_DEBUG_CID
{
switch_event_t *event;
if (switch_event_create_plain(&event, SWITCH_EVENT_CHANNEL_DATA) == SWITCH_STATUS_SUCCESS) {
//switch_channel_event_set_basic_data(originator_channel, event);
switch_caller_profile_event_set_data(originator_cp, "POST-ORIGINATOR", event);
switch_caller_profile_event_set_data(originatee_cp, "POST-ORIGINATEE", event);
DUMP_EVENT(event);
switch_event_destroy(&event);
}
}
#endif
switch_channel_stop_broadcast(originator_channel);
switch_channel_stop_broadcast(originatee_channel);
switch_channel_set_flag(originator_channel, CF_TRANSFER);
switch_channel_set_flag(originatee_channel, CF_TRANSFER);
switch_channel_clear_flag(originator_channel, CF_ORIGINATING);
switch_channel_clear_flag(originatee_channel, CF_ORIGINATING);
originator_cp->transfer_source = switch_core_sprintf(originator_cp->pool,
"%ld:%s:uuid_br:%s", (long)switch_epoch_time_now(NULL), originator_cp->uuid_str,
switch_core_session_get_uuid(originatee_session));
switch_channel_add_variable_var_check(originator_channel, SWITCH_TRANSFER_HISTORY_VARIABLE,
originator_cp->transfer_source, SWITCH_FALSE, SWITCH_STACK_PUSH);
switch_channel_set_variable(originator_channel, SWITCH_TRANSFER_SOURCE_VARIABLE, originator_cp->transfer_source);
originatee_cp->transfer_source = switch_core_sprintf(originatee_cp->pool,
"%ld:%s:uuid_br:%s", (long)switch_epoch_time_now(NULL), originatee_cp->uuid_str,
switch_core_session_get_uuid(originator_session));
switch_channel_add_variable_var_check(originatee_channel, SWITCH_TRANSFER_HISTORY_VARIABLE,
originatee_cp->transfer_source, SWITCH_FALSE, SWITCH_STACK_PUSH);
switch_channel_set_variable(originatee_channel, SWITCH_TRANSFER_SOURCE_VARIABLE, originatee_cp->transfer_source);
/* change the states and let the chips fall where they may */
//switch_channel_set_variable(originator_channel, SWITCH_PARK_AFTER_BRIDGE_VARIABLE, NULL);
//switch_channel_set_variable(originatee_channel, SWITCH_PARK_AFTER_BRIDGE_VARIABLE, NULL);
switch_channel_clear_state_handler(originator_channel, NULL);
switch_channel_clear_state_handler(originatee_channel, NULL);
switch_channel_clear_state_flag(originator_channel, CF_BRIDGE_ORIGINATOR);
switch_channel_clear_state_flag(originatee_channel, CF_BRIDGE_ORIGINATOR);
switch_channel_clear_flag(originator_channel, CF_UUID_BRIDGE_ORIGINATOR);
switch_channel_clear_flag(originatee_channel, CF_UUID_BRIDGE_ORIGINATOR);
switch_channel_set_state_flag(originator_channel, CF_UUID_BRIDGE_ORIGINATOR);
switch_channel_add_state_handler(originator_channel, &uuid_bridge_state_handlers);
switch_channel_add_state_handler(originatee_channel, &uuid_bridge_state_handlers);
state = switch_channel_get_state(originator_channel);
switch_channel_set_state(originator_channel, state == CS_HIBERNATE ? CS_CONSUME_MEDIA : CS_HIBERNATE);
state = switch_channel_get_state(originatee_channel);
switch_channel_set_state(originatee_channel, state == CS_HIBERNATE ? CS_CONSUME_MEDIA : CS_HIBERNATE);
status = SWITCH_STATUS_SUCCESS;
//switch_ivr_bridge_display(originator_session, originatee_session);
/* release the read locks we have on the channels */
switch_core_session_rwunlock(originator_session);
switch_core_session_rwunlock(originatee_session);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(originator_session), SWITCH_LOG_DEBUG, "originatee uuid %s is not present\n", originatee_uuid);
switch_core_session_rwunlock(originator_session);
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(originator_session), SWITCH_LOG_DEBUG, "originator uuid %s is not present\n", originator_uuid);
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_find_bridged_uuid(const char *uuid, char *b_uuid, switch_size_t blen)
{
switch_core_session_t *rsession;
switch_status_t status = SWITCH_STATUS_FALSE;
switch_assert(uuid);
if ((rsession = switch_core_session_locate(uuid))) {
switch_channel_t *rchannel = switch_core_session_get_channel(rsession);
const char *brto;
if ((brto = switch_channel_get_variable(rchannel, SWITCH_ORIGINATE_SIGNAL_BOND_VARIABLE)) ||
(brto = switch_channel_get_partner_uuid(rchannel))) {
switch_copy_string(b_uuid, brto, blen);
status = SWITCH_STATUS_SUCCESS;
}
switch_core_session_rwunlock(rsession);
}
return status;
}
SWITCH_DECLARE(void) switch_ivr_intercept_session(switch_core_session_t *session, const char *uuid, switch_bool_t bleg)
{
switch_core_session_t *rsession, *bsession = NULL;
switch_channel_t *channel, *rchannel, *bchannel = NULL;
const char *buuid, *var;
char brto[SWITCH_UUID_FORMATTED_LENGTH + 1] = "";
if (bleg) {
if (switch_ivr_find_bridged_uuid(uuid, brto, sizeof(brto)) == SWITCH_STATUS_SUCCESS) {
uuid = switch_core_session_strdup(session, brto);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "no uuid bridged to %s\n", uuid);
return;
}
}
if (zstr(uuid) || !(rsession = switch_core_session_locate(uuid))) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "no uuid %s\n", uuid);
return;
}
channel = switch_core_session_get_channel(session);
rchannel = switch_core_session_get_channel(rsession);
buuid = switch_channel_get_partner_uuid(rchannel);
if ((var = switch_channel_get_variable(channel, "intercept_unbridged_only")) && switch_true(var)) {
if ((switch_channel_test_flag(rchannel, CF_BRIDGED))) {
switch_core_session_rwunlock(rsession);
return;
}
}
if ((var = switch_channel_get_variable(channel, "intercept_unanswered_only")) && switch_true(var)) {
if ((switch_channel_test_flag(rchannel, CF_ANSWERED))) {
switch_core_session_rwunlock(rsession);
return;
}
}
switch_channel_answer(channel);
if (!zstr(buuid)) {
if ((bsession = switch_core_session_locate(buuid))) {
bchannel = switch_core_session_get_channel(bsession);
switch_channel_set_flag(bchannel, CF_INTERCEPT);
}
}
if (!switch_channel_test_flag(rchannel, CF_ANSWERED)) {
switch_channel_answer(rchannel);
}
switch_channel_mark_hold(rchannel, SWITCH_FALSE);
switch_channel_set_state_flag(rchannel, CF_TRANSFER);
switch_channel_set_state(rchannel, CS_PARK);
if (bchannel) {
switch_channel_set_state_flag(bchannel, CF_TRANSFER);
switch_channel_set_state(bchannel, CS_PARK);
}
switch_channel_set_flag(rchannel, CF_INTERCEPTED);
switch_ivr_uuid_bridge(switch_core_session_get_uuid(session), uuid);
switch_core_session_rwunlock(rsession);
if (bsession) {
switch_channel_hangup(bchannel, SWITCH_CAUSE_PICKED_OFF);
switch_core_session_rwunlock(bsession);
}
}
/* For Emacs:
* Local Variables:
* mode:c
* indent-tabs-mode:t
* tab-width:4
* c-basic-offset:4
* End:
* For VIM:
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
*/
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