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Stasis application WebSocket support

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This is the API that binds the Stasis dialplan application to external
Stasis applications. It also adds the beginnings of WebSocket
application support.

This module registers a dialplan function named Stasis, which is used
to put a channel into the named Stasis app. As a channel enters and
leaves the Stasis diaplan application, the Stasis app receives a
'stasis-start' and 'stasis-end' events.

Stasis apps register themselves using the stasis_app_register and
stasis_app_unregister functions. Messages are sent to an application
using stasis_app_send.

Finally, Stasis apps control channels through the use of the
stasis_app_control object, and the family of stasis_app_control_*
functions.

Other changes along for the ride are:
 * An ast_frame_dtor function that's RAII_VAR safe
 * Some common JSON encoders for name/number, timeval, and
   context/extension/priority

Review: https://reviewboard.asterisk.org/r/2361/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@384879 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
David M. Lee
2013-04-08 13:27:45 +00:00
parent 426095bc55
commit a2a53cc306
14 changed files with 1536 additions and 52 deletions
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77
apps/stasis_json.c Normal file
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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 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 Stasis application JSON converters.
*
* \author David M. Lee, II <dlee@digium.com>
*/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/app_stasis.h"
struct ast_json *ast_channel_snapshot_to_json(const struct ast_channel_snapshot *snapshot)
{
RAII_VAR(struct ast_json *, json_chan, NULL, ast_json_unref);
int r = 0;
if (snapshot == NULL) {
return NULL;
}
json_chan = ast_json_object_create();
if (!json_chan) { ast_log(LOG_ERROR, "Error creating channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "name", ast_json_string_create(snapshot->name));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "state", ast_json_string_create(ast_state2str(snapshot->state)));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "accountcode", ast_json_string_create(snapshot->accountcode));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "peeraccount", ast_json_string_create(snapshot->peeraccount));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "userfield", ast_json_string_create(snapshot->userfield));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "uniqueid", ast_json_string_create(snapshot->uniqueid));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "linkedid", ast_json_string_create(snapshot->linkedid));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "parkinglot", ast_json_string_create(snapshot->parkinglot));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "hangupsource", ast_json_string_create(snapshot->hangupsource));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "appl", ast_json_string_create(snapshot->appl));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "data", ast_json_string_create(snapshot->data));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "dialplan", ast_json_dialplan_cep(snapshot->context, snapshot->exten, snapshot->priority));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "caller", ast_json_name_number(snapshot->caller_name, snapshot->caller_number));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "connected", ast_json_name_number(snapshot->connected_name, snapshot->connected_number));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
r = ast_json_object_set(json_chan, "creationtime", ast_json_timeval(&snapshot->creationtime, NULL));
if (r) { ast_log(LOG_ERROR, "Error adding attrib to channel json object\n"); return NULL; }
return ast_json_ref(json_chan);
}