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/* -*- C -*-
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2012 - 2013, Digium, Inc.
*
* David M. Lee, II <dlee@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief Implementation for stasis-http stubs.
*
* \author David M. Lee, II <dlee@digium.com>
*/
/*** MODULEINFO
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "resource_bridges.h"
#include "asterisk/stasis.h"
#include "asterisk/stasis_bridging.h"
#include "asterisk/stasis_app.h"
#include "asterisk/channel.h"
#include "asterisk/bridging.h"
/*!
* \brief Finds a bridge, filling the response with an error, if appropriate.
*
* \param[out] response Response to fill with an error if control is not found.
* \param bridge_id ID of the bridge to lookup.
*
* \return Bridget.
* \return \c NULL if bridge does not exist.
*/
static struct ast_bridge *find_bridge(
struct stasis_http_response *response,
const char *bridge_id)
{
RAII_VAR(struct ast_bridge *, bridge, NULL, ao2_cleanup);
ast_assert(response != NULL);
bridge = stasis_app_bridge_find_by_id(bridge_id);
if (bridge == NULL) {
RAII_VAR(struct ast_bridge_snapshot *, snapshot,
ast_bridge_snapshot_get_latest(bridge_id), ao2_cleanup);
if (!snapshot) {
stasis_http_response_error(response, 404, "Not found",
"Bridge not found");
return NULL;
}
stasis_http_response_error(response, 409, "Conflict",
"Bridge not in Stasis application");
return NULL;
}
ao2_ref(bridge, +1);
return bridge;
}
/*!
* \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 stasis_http_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) {
stasis_http_response_error(response, 422, "Unprocessable Entity",
"Channel not in Stasis application");
return NULL;
}
ao2_ref(control, +1);
return control;
}
void stasis_http_add_channel_to_bridge(struct ast_variable *headers, struct ast_add_channel_to_bridge_args *args, struct stasis_http_response *response)
{
RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
if (!bridge) {
return;
}
control = find_channel_control(response, args->channel);
if (!control) {
return;
}
stasis_app_control_add_channel_to_bridge(control, bridge);
stasis_http_response_no_content(response);
}
void stasis_http_remove_channel_from_bridge(struct ast_variable *headers, struct ast_remove_channel_from_bridge_args *args, struct stasis_http_response *response)
{
RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
if (!bridge) {
return;
}
control = find_channel_control(response, args->channel);
if (!control) {
return;
}
/* BUGBUG this should make sure the bridge requested for removal is actually
* the bridge the channel is in. This will be possible once the bridge uniqueid
* is added to the channel snapshot. A 409 response should be issued if the bridge
* uniqueids don't match */
if (stasis_app_control_remove_channel_from_bridge(control, bridge)) {
stasis_http_response_error(response, 500, "Internal Error",
"Could not remove channel from bridge");
return;
}
stasis_http_response_no_content(response);
}
void stasis_http_record_bridge(struct ast_variable *headers, struct ast_record_bridge_args *args, struct stasis_http_response *response)
{
ast_log(LOG_ERROR, "TODO: stasis_http_record_bridge\n");
}
void stasis_http_get_bridge(struct ast_variable *headers, struct ast_get_bridge_args *args, struct stasis_http_response *response)
{
RAII_VAR(struct ast_bridge_snapshot *, snapshot, ast_bridge_snapshot_get_latest(args->bridge_id), ao2_cleanup);
if (!snapshot) {
stasis_http_response_error(
response, 404, "Not Found",
"Bridge not found");
return;
}
stasis_http_response_ok(response,
ast_bridge_snapshot_to_json(snapshot));
}
void stasis_http_delete_bridge(struct ast_variable *headers, struct ast_delete_bridge_args *args, struct stasis_http_response *response)
{
RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
if (!bridge) {
return;
}
stasis_app_bridge_destroy(args->bridge_id);
stasis_http_response_no_content(response);
}
void stasis_http_get_bridges(struct ast_variable *headers, struct ast_get_bridges_args *args, struct stasis_http_response *response)
{
RAII_VAR(struct stasis_caching_topic *, caching_topic, NULL, ao2_cleanup);
RAII_VAR(struct ao2_container *, snapshots, NULL, ao2_cleanup);
RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
struct ao2_iterator i;
void *obj;
caching_topic = ast_bridge_topic_all_cached();
if (!caching_topic) {
stasis_http_response_error(
response, 500, "Internal Server Error",
"Message bus not initialized");
return;
}
ao2_ref(caching_topic, +1);
snapshots = stasis_cache_dump(caching_topic, ast_bridge_snapshot_type());
if (!snapshots) {
stasis_http_response_alloc_failed(response);
return;
}
json = ast_json_array_create();
if (!json) {
stasis_http_response_alloc_failed(response);
return;
}
i = ao2_iterator_init(snapshots, 0);
while ((obj = ao2_iterator_next(&i))) {
RAII_VAR(struct stasis_message *, msg, obj, ao2_cleanup);
struct ast_bridge_snapshot *snapshot = stasis_message_data(msg);
if (ast_json_array_append(json, ast_bridge_snapshot_to_json(snapshot))) {
stasis_http_response_alloc_failed(response);
return;
}
}
ao2_iterator_destroy(&i);
stasis_http_response_ok(response, ast_json_ref(json));
}
void stasis_http_new_bridge(struct ast_variable *headers, struct ast_new_bridge_args *args, struct stasis_http_response *response)
{
RAII_VAR(struct ast_bridge *, bridge, stasis_app_bridge_create(args->type), ao2_cleanup);
RAII_VAR(struct ast_bridge_snapshot *, snapshot, NULL, ao2_cleanup);
if (!bridge) {
stasis_http_response_error(
response, 500, "Internal Error",
"Unable to create bridge");
return;
}
snapshot = ast_bridge_snapshot_create(bridge);
if (!snapshot) {
stasis_http_response_error(
response, 500, "Internal Error",
"Unable to create snapshot for new bridge");
return;
}
stasis_http_response_ok(response,
ast_bridge_snapshot_to_json(snapshot));
}
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