/*! Forward a bridge's topics to an app */
static struct app_forwards *forwards_create_bridge(struct stasis_app *app,
struct ast_bridge *bridge)
{
RAII_VAR(struct app_forwards *, forwards, NULL, ao2_cleanup);
if (!app || !bridge) {
return NULL;
}
forwards = forwards_create(app, bridge->uniqueid);
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_BRIDGE;
forwards->topic_forward = stasis_forward_all(ast_bridge_topic(bridge),
app->topic);
if (!forwards->topic_forward) {
return NULL;
}
forwards->topic_cached_forward = stasis_forward_all(
ast_bridge_topic_cached(bridge), app->topic);
if (!forwards->topic_cached_forward) {
/* Half-subscribed is a bad thing */
stasis_forward_cancel(forwards->topic_forward);
forwards->topic_forward = NULL;
return NULL;
}
ao2_ref(forwards, +1);
return forwards;
}
/*! Forward a endpoint's topics to an app */
static struct app_forwards *forwards_create_endpoint(struct stasis_app *app,
struct ast_endpoint *endpoint)
{
RAII_VAR(struct app_forwards *, forwards, NULL, ao2_cleanup);
if (!app || !endpoint) {
return NULL;
}
forwards = forwards_create(app, ast_endpoint_get_id(endpoint));
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_ENDPOINT;
forwards->topic_forward = stasis_forward_all(ast_endpoint_topic(endpoint),
app->topic);
if (!forwards->topic_forward) {
return NULL;
}
forwards->topic_cached_forward = stasis_forward_all(
ast_endpoint_topic_cached(endpoint), app->topic);
if (!forwards->topic_cached_forward) {
/* Half-subscribed is a bad thing */
stasis_forward_cancel(forwards->topic_forward);
forwards->topic_forward = NULL;
return NULL;
}
ao2_ref(forwards, +1);
return forwards;
}
/*! Forward a bridge's topics to an app */
static struct app_forwards *forwards_create_bridge(struct stasis_app *app,
struct ast_bridge *bridge)
{
struct app_forwards *forwards;
if (!app) {
return NULL;
}
forwards = forwards_create(app, bridge ? bridge->uniqueid : BRIDGE_ALL);
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_BRIDGE;
if (bridge) {
forwards->topic_forward = stasis_forward_all(ast_bridge_topic(bridge),
app->topic);
}
forwards->topic_cached_forward = stasis_forward_all(
bridge ? ast_bridge_topic_cached(bridge) : ast_bridge_topic_all_cached(),
app->topic);
if ((!forwards->topic_forward && bridge) || !forwards->topic_cached_forward) {
/* Half-subscribed is a bad thing */
forwards_unsubscribe(forwards);
ao2_ref(forwards, -1);
return NULL;
}
return forwards;
}
/*! Forward a channel's topics to an app */
static struct app_forwards *forwards_create_channel(struct stasis_app *app,
struct ast_channel *chan)
{
RAII_VAR(struct app_forwards *, forwards, NULL, ao2_cleanup);
if (!app || !chan) {
return NULL;
}
forwards = forwards_create(app, ast_channel_uniqueid(chan));
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_CHANNEL;
forwards->topic_forward = stasis_forward_all(ast_channel_topic(chan),
app->topic);
if (!forwards->topic_forward) {
return NULL;
}
forwards->topic_cached_forward = stasis_forward_all(
ast_channel_topic_cached(chan), app->topic);
if (!forwards->topic_cached_forward) {
/* Half-subscribed is a bad thing */
stasis_forward_cancel(forwards->topic_forward);
forwards->topic_forward = NULL;
return NULL;
}
ao2_ref(forwards, +1);
return forwards;
}
/*! Forward a channel's topics to an app */
static struct app_forwards *forwards_create_channel(struct stasis_app *app,
struct ast_channel *chan)
{
struct app_forwards *forwards;
if (!app) {
return NULL;
}
forwards = forwards_create(app, chan ? ast_channel_uniqueid(chan) : CHANNEL_ALL);
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_CHANNEL;
if (chan) {
forwards->topic_forward = stasis_forward_all(ast_channel_topic(chan),
app->topic);
}
forwards->topic_cached_forward = stasis_forward_all(
chan ? ast_channel_topic_cached(chan) : ast_channel_topic_all_cached(),
app->topic);
if ((!forwards->topic_forward && chan) || !forwards->topic_cached_forward) {
/* Half-subscribed is a bad thing */
forwards_unsubscribe(forwards);
ao2_ref(forwards, -1);
return NULL;
}
return forwards;
}
struct stasis_cp_single *stasis_cp_single_create(struct stasis_cp_all *all,
const char *name)
{
RAII_VAR(struct stasis_cp_single *, one, NULL, ao2_cleanup);
one = ao2_alloc(sizeof(*one), one_dtor);
if (!one) {
return NULL;
}
one->topic = stasis_topic_create(name);
if (!one->topic) {
return NULL;
}
one->topic_cached = stasis_caching_topic_create(one->topic, all->cache);
if (!one->topic_cached) {
return NULL;
}
one->forward_topic_to_all = stasis_forward_all(one->topic, all->topic);
if (!one->forward_topic_to_all) {
return NULL;
}
one->forward_cached_to_all = stasis_forward_all(
stasis_caching_get_topic(one->topic_cached), all->topic_cached);
if (!one->forward_cached_to_all) {
return NULL;
}
ao2_ref(one, +1);
return one;
}
/*! Forward a endpoint's topics to an app */
static struct app_forwards *forwards_create_endpoint(struct stasis_app *app,
struct ast_endpoint *endpoint)
{
struct app_forwards *forwards;
int ret = 0;
if (!app) {
return NULL;
}
forwards = forwards_create(app, endpoint ? ast_endpoint_get_id(endpoint) : ENDPOINT_ALL);
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_ENDPOINT;
if (endpoint) {
forwards->topic_forward = stasis_forward_all(ast_endpoint_topic(endpoint),
app->topic);
forwards->topic_cached_forward = stasis_forward_all(
ast_endpoint_topic_cached(endpoint), app->topic);
if (!forwards->topic_forward || !forwards->topic_cached_forward) {
/* Half-subscribed is a bad thing */
forwards_unsubscribe(forwards);
ao2_ref(forwards, -1);
return NULL;
}
} else {
/* Since endpoint subscriptions also subscribe to channels, in the case
* of all endpoint subscriptions, we only want messages for the endpoints.
* As such, we route those particular messages and then re-publish them
* on the app's topic.
*/
ast_assert(app->endpoint_router == NULL);
app->endpoint_router = stasis_message_router_create(ast_endpoint_topic_all_cached());
if (!app->endpoint_router) {
forwards_unsubscribe(forwards);
ao2_ref(forwards, -1);
return NULL;
}
ret |= stasis_message_router_add(app->endpoint_router,
ast_endpoint_state_type(), endpoint_state_cb, app);
ret |= stasis_message_router_add(app->endpoint_router,
ast_endpoint_contact_state_type(), endpoint_state_cb, app);
if (ret) {
ao2_ref(app->endpoint_router, -1);
app->endpoint_router = NULL;
ao2_ref(forwards, -1);
return NULL;
}
}
return forwards;
}
struct stasis_topic *stasis_topic_pool_get_topic(struct stasis_topic_pool *pool, const char *topic_name)
{
RAII_VAR(struct topic_pool_entry *, topic_pool_entry, NULL, ao2_cleanup);
SCOPED_AO2LOCK(topic_container_lock, pool->pool_container);
topic_pool_entry = ao2_find(pool->pool_container, topic_name, OBJ_SEARCH_KEY | OBJ_NOLOCK);
if (topic_pool_entry) {
return topic_pool_entry->topic;
}
topic_pool_entry = topic_pool_entry_alloc();
if (!topic_pool_entry) {
return NULL;
}
topic_pool_entry->topic = stasis_topic_create(topic_name);
if (!topic_pool_entry->topic) {
return NULL;
}
topic_pool_entry->forward = stasis_forward_all(topic_pool_entry->topic, pool->pool_topic);
if (!topic_pool_entry->forward) {
return NULL;
}
if (!ao2_link_flags(pool->pool_container, topic_pool_entry, OBJ_NOLOCK)) {
return NULL;
}
return topic_pool_entry->topic;
}
struct stasis_cp_all *stasis_cp_all_create(const char *name,
snapshot_get_id id_fn)
{
char *cached_name = NULL;
struct stasis_cp_all *all;
static int cache_id;
all = ao2_t_alloc(sizeof(*all), all_dtor, name);
if (!all) {
return NULL;
}
ast_asprintf(&cached_name, "cache_pattern:%d/%s", ast_atomic_fetchadd_int(&cache_id, +1), name);
if (!cached_name) {
ao2_ref(all, -1);
return NULL;
}
all->topic = stasis_topic_create(name);
all->topic_cached = stasis_topic_create(cached_name);
ast_free(cached_name);
all->cache = stasis_cache_create(id_fn);
all->forward_all_to_cached =
stasis_forward_all(all->topic, all->topic_cached);
if (!all->topic || !all->topic_cached || !all->cache ||
!all->forward_all_to_cached) {
ao2_ref(all, -1);
return NULL;
}
return all;
}
int manager_bridging_init(void)
{
int ret = 0;
struct stasis_topic *manager_topic;
struct stasis_topic *bridge_topic;
if (bridge_state_router) {
/* Already initialized */
return 0;
}
ast_register_cleanup(manager_bridging_cleanup);
manager_topic = ast_manager_get_topic();
if (!manager_topic) {
return -1;
}
bridge_topic = ast_bridge_topic_all_cached();
if (!bridge_topic) {
return -1;
}
topic_forwarder = stasis_forward_all(bridge_topic, manager_topic);
if (!topic_forwarder) {
return -1;
}
bridge_state_router = ast_manager_get_message_router();
if (!bridge_state_router) {
return -1;
}
ret |= stasis_message_router_add_cache_update(bridge_state_router,
ast_bridge_snapshot_type(), bridge_snapshot_update, NULL);
ret |= stasis_message_router_add(bridge_state_router,
ast_bridge_merge_message_type(), bridge_merge_cb, NULL);
ret |= stasis_message_router_add(bridge_state_router,
ast_channel_entered_bridge_type(), channel_enter_cb, NULL);
ret |= stasis_message_router_add(bridge_state_router,
ast_channel_left_bridge_type(), channel_leave_cb, NULL);
ret |= ast_manager_register_xml_core("BridgeList", 0, manager_bridges_list);
ret |= ast_manager_register_xml_core("BridgeInfo", 0, manager_bridge_info);
ret |= ast_manager_register_xml_core("BridgeDestroy", 0, manager_bridge_destroy);
ret |= ast_manager_register_xml_core("BridgeKick", 0, manager_bridge_kick);
/* If somehow we failed to add any routes, just shut down the whole
* thing and fail it.
*/
if (ret) {
manager_bridging_cleanup();
return -1;
}
return 0;
}
/*! Forward a channel's topics to an app */
static struct app_forwards *forwards_create_channel(struct stasis_app *app,
struct ast_channel *chan)
{
struct app_forwards *forwards;
if (!app) {
return NULL;
}
forwards = forwards_create(app, chan ? ast_channel_uniqueid(chan) : CHANNEL_ALL);
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_CHANNEL;
forwards->topic_forward = stasis_forward_all(
chan ? ast_channel_topic(chan) : ast_channel_topic_all(),
app->topic);
if (!forwards->topic_forward) {
ao2_ref(forwards, -1);
return NULL;
}
return forwards;
}
/*! Forward a bridge's topics to an app */
static struct app_forwards *forwards_create_bridge(struct stasis_app *app,
struct ast_bridge *bridge)
{
struct app_forwards *forwards;
if (!app) {
return NULL;
}
forwards = forwards_create(app, bridge ? bridge->uniqueid : BRIDGE_ALL);
if (!forwards) {
return NULL;
}
forwards->forward_type = FORWARD_BRIDGE;
forwards->topic_forward = stasis_forward_all(ast_bridge_topic(bridge), app->topic);
if (!forwards->topic_forward && bridge) {
forwards_unsubscribe(forwards);
ao2_ref(forwards, -1);
return NULL;
}
return forwards;
}
struct stasis_cp_all *stasis_cp_all_create(const char *name,
snapshot_get_id id_fn)
{
RAII_VAR(char *, cached_name, NULL, ast_free);
RAII_VAR(struct stasis_cp_all *, all, NULL, ao2_cleanup);
all = ao2_alloc(sizeof(*all), all_dtor);
if (!all) {
return NULL;
}
ast_asprintf(&cached_name, "%s-cached", name);
if (!cached_name) {
return NULL;
}
all->topic = stasis_topic_create(name);
all->topic_cached = stasis_topic_create(cached_name);
all->cache = stasis_cache_create(id_fn);
all->forward_all_to_cached =
stasis_forward_all(all->topic, all->topic_cached);
if (!all->topic || !all->topic_cached || !all->cache ||
!all->forward_all_to_cached) {
return NULL;
}
ao2_ref(all, +1);
return all;
}
struct stasis_cp_single *stasis_cp_single_create(struct stasis_cp_all *all,
const char *name)
{
struct stasis_cp_single *one;
one = stasis_cp_sink_create(all, name);
if (!one) {
return NULL;
}
one->forward_topic_to_all = stasis_forward_all(one->topic, all->topic);
one->forward_cached_to_all = stasis_forward_all(
stasis_caching_get_topic(one->topic_cached), all->topic_cached);
if (!one->forward_topic_to_all || !one->forward_cached_to_all) {
ao2_ref(one, -1);
return NULL;
}
return one;
}
int ast_channel_forward_endpoint(struct ast_channel *chan,
struct ast_endpoint *endpoint)
{
ast_assert(chan != NULL);
ast_assert(endpoint != NULL);
chan->endpoint_forward =
stasis_forward_all(ast_channel_topic(chan),
ast_endpoint_topic(endpoint));
if (chan->endpoint_forward == NULL) {
return -1;
}
return 0;
}
int manager_mwi_init(void)
{
int ret = 0;
struct stasis_topic *manager_topic;
struct stasis_topic *mwi_topic;
struct stasis_message_router *message_router;
manager_topic = ast_manager_get_topic();
if (!manager_topic) {
return -1;
}
message_router = ast_manager_get_message_router();
if (!message_router) {
return -1;
}
mwi_topic = ast_mwi_topic_all();
if (!mwi_topic) {
return -1;
}
topic_forwarder = stasis_forward_all(mwi_topic, manager_topic);
if (!topic_forwarder) {
return -1;
}
ast_register_cleanup(manager_mwi_shutdown);
ret |= stasis_message_router_add(message_router,
ast_mwi_state_type(),
mwi_update_cb,
NULL);
ret |= stasis_message_router_add(message_router,
ast_mwi_vm_app_type(),
mwi_app_event_cb,
NULL);
/* If somehow we failed to add any routes, just shut down the whole
* thing and fail it.
*/
if (ret) {
manager_mwi_shutdown();
return -1;
}
return 0;
}
void ast_ari_bridges_record(struct ast_variable *headers,
struct ast_ari_bridges_record_args *args,
struct ast_ari_response *response)
{
RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
RAII_VAR(struct ast_channel *, record_channel, NULL, ast_hangup);
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
RAII_VAR(struct stasis_app_recording *, recording, NULL, ao2_cleanup);
RAII_VAR(char *, recording_url, NULL, ast_free);
RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
RAII_VAR(struct stasis_app_recording_options *, options, NULL, ao2_cleanup);
RAII_VAR(char *, uri_encoded_name, NULL, ast_free);
RAII_VAR(struct stasis_forward *, channel_forward, NULL, stasis_forward_cancel);
struct stasis_topic *channel_topic;
struct stasis_topic *bridge_topic;
size_t uri_name_maxlen;
struct bridge_channel_control_thread_data *thread_data;
pthread_t threadid;
ast_assert(response != NULL);
if (bridge == NULL) {
return;
}
if (!(record_channel = prepare_bridge_media_channel("Recorder"))) {
ast_ari_response_error(
response, 500, "Internal Server Error", "Failed to create recording channel");
return;
}
bridge_topic = ast_bridge_topic(bridge);
channel_topic = ast_channel_topic(record_channel);
/* Forward messages from the recording channel topic to the bridge topic so that anything listening for
* messages on the bridge topic will receive the recording start/stop messages. Other messages that would
* go to this channel will be suppressed since the channel is marked as internal.
*/
if (!bridge_topic || !channel_topic || !(channel_forward = stasis_forward_all(channel_topic, bridge_topic))) {
ast_ari_response_error(
response, 500, "Internal Error", "Could not forward record channel stasis messages to bridge topic");
return;
}
if (ast_unreal_channel_push_to_bridge(record_channel, bridge,
AST_BRIDGE_CHANNEL_FLAG_IMMOVABLE | AST_BRIDGE_CHANNEL_FLAG_LONELY)) {
ast_ari_response_error(
response, 500, "Internal Error", "Failed to put recording channel into the bridge");
return;
}
control = stasis_app_control_create(record_channel);
if (control == NULL) {
ast_ari_response_alloc_failed(response);
return;
}
options = stasis_app_recording_options_create(args->name, args->format);
if (options == NULL) {
ast_ari_response_alloc_failed(response);
return;
}
ast_string_field_build(options, target, "bridge:%s", args->bridge_id);
options->max_silence_seconds = args->max_silence_seconds;
options->max_duration_seconds = args->max_duration_seconds;
options->terminate_on =
stasis_app_recording_termination_parse(args->terminate_on);
options->if_exists =
stasis_app_recording_if_exists_parse(args->if_exists);
options->beep = args->beep;
if (options->terminate_on == STASIS_APP_RECORDING_TERMINATE_INVALID) {
ast_ari_response_error(
response, 400, "Bad Request",
"terminateOn invalid");
return;
}
if (options->if_exists == AST_RECORD_IF_EXISTS_ERROR) {
ast_ari_response_error(
response, 400, "Bad Request",
"ifExists invalid");
return;
}
if (!ast_get_format_for_file_ext(options->format)) {
ast_ari_response_error(
response, 422, "Unprocessable Entity",
"specified format is unknown on this system");
return;
}
recording = stasis_app_control_record(control, options);
if (recording == NULL) {
switch(errno) {
case EINVAL:
/* While the arguments are invalid, we should have
* caught them prior to calling record.
*/
ast_ari_response_error(
response, 500, "Internal Server Error",
"Error parsing request");
break;
case EEXIST:
ast_ari_response_error(response, 409, "Conflict",
"Recording '%s' already exists and can not be overwritten",
args->name);
break;
case ENOMEM:
ast_ari_response_alloc_failed(response);
break;
case EPERM:
ast_ari_response_error(
response, 400, "Bad Request",
"Recording name invalid");
break;
default:
ast_log(LOG_WARNING,
"Unrecognized recording error: %s\n",
strerror(errno));
ast_ari_response_error(
response, 500, "Internal Server Error",
"Internal Server Error");
break;
}
return;
}
uri_name_maxlen = strlen(args->name) * 3;
uri_encoded_name = ast_malloc(uri_name_maxlen);
if (!uri_encoded_name) {
ast_ari_response_alloc_failed(response);
return;
}
ast_uri_encode(args->name, uri_encoded_name, uri_name_maxlen, ast_uri_http);
if (ast_asprintf(&recording_url, "/recordings/live/%s",
uri_encoded_name) == -1) {
recording_url = NULL;
ast_ari_response_alloc_failed(response);
return;
}
json = stasis_app_recording_to_json(recording);
if (!json) {
ast_ari_response_alloc_failed(response);
return;
}
thread_data = ast_calloc(1, sizeof(*thread_data));
if (!thread_data) {
ast_ari_response_alloc_failed(response);
return;
}
thread_data->bridge_channel = record_channel;
thread_data->control = control;
thread_data->forward = channel_forward;
if (ast_pthread_create_detached(&threadid, NULL, bridge_channel_control_thread, thread_data)) {
ast_ari_response_alloc_failed(response);
ast_free(thread_data);
return;
}
/* These are owned by the other thread now, so we don't want RAII_VAR disposing of them. */
record_channel = NULL;
control = NULL;
channel_forward = NULL;
ast_ari_response_created(response, recording_url, ast_json_ref(json));
}
static void ari_bridges_play_new(const char *args_media,
const char *args_lang,
int args_offset_ms,
int args_skipms,
const char *args_playback_id,
struct ast_ari_response *response,
struct ast_bridge *bridge)
{
RAII_VAR(struct ast_channel *, play_channel, NULL, ast_hangup);
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
RAII_VAR(struct stasis_forward *, channel_forward, NULL, stasis_forward_cancel);
RAII_VAR(char *, playback_url, NULL, ast_free);
struct stasis_topic *channel_topic;
struct stasis_topic *bridge_topic;
struct bridge_channel_control_thread_data *thread_data;
pthread_t threadid;
if (!(play_channel = prepare_bridge_media_channel("Announcer"))) {
ast_ari_response_error(
response, 500, "Internal Error", "Could not create playback channel");
return;
}
ast_debug(1, "Created announcer channel '%s'\n", ast_channel_name(play_channel));
bridge_topic = ast_bridge_topic(bridge);
channel_topic = ast_channel_topic(play_channel);
/* Forward messages from the playback channel topic to the bridge topic so that anything listening for
* messages on the bridge topic will receive the playback start/stop messages. Other messages that would
* go to this channel will be suppressed since the channel is marked as internal.
*/
if (!bridge_topic || !channel_topic || !(channel_forward = stasis_forward_all(channel_topic, bridge_topic))) {
ast_ari_response_error(
response, 500, "Internal Error", "Could not forward playback channel stasis messages to bridge topic");
return;
}
if (ast_unreal_channel_push_to_bridge(play_channel, bridge,
AST_BRIDGE_CHANNEL_FLAG_IMMOVABLE | AST_BRIDGE_CHANNEL_FLAG_LONELY)) {
ast_ari_response_error(
response, 500, "Internal Error", "Failed to put playback channel into the bridge");
return;
}
control = stasis_app_control_create(play_channel);
if (control == NULL) {
ast_ari_response_alloc_failed(response);
return;
}
ao2_lock(control);
if (ari_bridges_play_helper(args_media, args_lang, args_offset_ms,
args_skipms, args_playback_id, response, bridge, control,
&json, &playback_url)) {
ao2_unlock(control);
return;
}
ao2_unlock(control);
if (stasis_app_bridge_playback_channel_add(bridge, play_channel, control)) {
ast_ari_response_alloc_failed(response);
return;
}
/* Give play_channel and control reference to the thread data */
thread_data = ast_calloc(1, sizeof(*thread_data));
if (!thread_data) {
ast_ari_response_alloc_failed(response);
return;
}
thread_data->bridge_channel = play_channel;
thread_data->control = control;
thread_data->forward = channel_forward;
if (ast_pthread_create_detached(&threadid, NULL, bridge_channel_control_thread, thread_data)) {
ast_ari_response_alloc_failed(response);
ast_free(thread_data);
return;
}
/* These are owned by the other thread now, so we don't want RAII_VAR disposing of them. */
play_channel = NULL;
control = NULL;
channel_forward = NULL;
ast_ari_response_created(response, playback_url, ast_json_ref(json));
}
