/*!
* \brief Performs common setup for a bridge playback operation
* with both new controls and when existing controls are found.
*
* \param args_media media string split from arguments
* \param args_lang language string split from arguments
* \param args_offset_ms milliseconds offset split from arguments
* \param args_playback_id string to use for playback split from
* arguments (null valid)
* \param response ARI response being built
* \param bridge Bridge the playback is being peformed on
* \param found_channel The channel that was found controlling playback
*
* \retval PLAY_FOUND_SUCCESS The operation was successful
* \retval PLAY_FOUND_FAILURE The operation failed (terminal failure)
* \retval PLAY_FOUND_CHANNEL_UNAVAILABLE The operation failed because
* the channel requested to playback with is breaking down.
*/
static enum play_found_result ari_bridges_play_found(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,
struct ast_channel *found_channel)
{
RAII_VAR(struct ast_channel *, play_channel, found_channel, ao2_cleanup);
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
RAII_VAR(char *, playback_url, NULL, ast_free);
RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
control = stasis_app_control_find_by_channel(play_channel);
if (!control) {
ast_ari_response_error(
response, 500, "Internal Error", "Failed to get control snapshot");
return PLAY_FOUND_FAILURE;
}
ao2_lock(control);
if (stasis_app_control_is_done(control)) {
/* We failed to queue the action. Bailout and return that we aren't terminal. */
ao2_unlock(control);
return PLAY_FOUND_CHANNEL_UNAVAILABLE;
}
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 PLAY_FOUND_FAILURE;
}
ao2_unlock(control);
ast_ari_response_created(response, playback_url, ast_json_ref(json));
return PLAY_FOUND_SUCCESS;
}
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));
}
