/*!
* \brief Finds the control object for a channel, filling the response with an
* error, if appropriate.
* \param[out] response Response to fill with an error if control is not found.
* \param channel_id ID of the channel to lookup.
* \return Channel control object.
* \return \c NULL if control object does not exist.
*/
static struct stasis_app_control *find_channel_control(
struct ast_ari_response *response,
const char *channel_id)
{
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
ast_assert(response != NULL);
control = stasis_app_control_find_by_channel_id(channel_id);
if (control == NULL) {
/* Distinguish between 400 and 422 errors */
RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL,
ao2_cleanup);
snapshot = ast_channel_snapshot_get_latest(channel_id);
if (snapshot == NULL) {
ast_log(LOG_DEBUG, "Couldn't find '%s'\n", channel_id);
ast_ari_response_error(response, 400, "Bad Request",
"Channel not found");
return NULL;
}
ast_log(LOG_DEBUG, "Found non-stasis '%s'\n", channel_id);
ast_ari_response_error(response, 422, "Unprocessable Entity",
"Channel not in Stasis application");
return NULL;
}
ao2_ref(control, +1);
return control;
}
/*!
* \brief Finds the control object for a channel, filling the response with an
* error, if appropriate.
* \param[out] response Response to fill with an error if control is not found.
* \param channel_id ID of the channel to lookup.
* \return Channel control object.
* \return \c NULL if control object does not exist.
*/
static struct stasis_app_control *find_control(
struct ast_ari_response *response,
const char *channel_id)
{
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
ast_assert(response != NULL);
control = stasis_app_control_find_by_channel_id(channel_id);
if (control == NULL) {
/* Distinguish between 404 and 409 errors */
RAII_VAR(struct ast_channel *, chan, NULL, ao2_cleanup);
chan = ast_channel_get_by_name(channel_id);
if (chan == NULL) {
ast_ari_response_error(response, 404, "Not Found",
"Channel not found");
return NULL;
}
ast_ari_response_error(response, 409, "Conflict",
"Channel not in Stasis application");
return NULL;
}
ao2_ref(control, +1);
return control;
}
