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/*
* 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.
*/
/*
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* !!!!! DO NOT EDIT !!!!!
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* This file is generated by a mustache template. Please see the original
* template in rest-api-templates/res_ari_resource.c.mustache
*/
/*! \file
*
* \brief WebSocket resource
*
* \author David M. Lee, II <dlee@digium.com>
*/
/*** MODULEINFO
<depend type="module">res_ari</depend>
<depend type="module">res_stasis</depend>
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/app.h"
#include "asterisk/module.h"
#include "asterisk/stasis_app.h"
#include "ari/resource_events.h"
#if defined(AST_DEVMODE)
#include "ari/ari_model_validators.h"
#endif
#include "asterisk/http_websocket.h"
#define MAX_VALS 128
static void ast_ari_event_websocket_ws_cb(struct ast_websocket *ws_session,
struct ast_variable *get_params, struct ast_variable *headers)
{
struct ast_event_websocket_args args = {};
RAII_VAR(struct ast_ari_response *, response, NULL, ast_free);
struct ast_variable *i;
RAII_VAR(struct ast_websocket *, s, ws_session, ast_websocket_unref);
RAII_VAR(struct ast_ari_websocket_session *, session, NULL, ao2_cleanup);
response = ast_calloc(1, sizeof(*response));
if (!response) {
ast_log(LOG_ERROR, "Failed to create response.\n");
goto fin;
}
#if defined(AST_DEVMODE)
session = ast_ari_websocket_session_create(ws_session,
ast_ari_validate_message_fn());
#else
session = ast_ari_websocket_session_create(ws_session, NULL);
#endif
if (!session) {
ast_log(LOG_ERROR, "Failed to create ARI session\n");
goto fin;
}
for (i = get_params; i; i = i->next) {
if (strcmp(i->name, "app") == 0) {
/* Parse comma separated list */
char *vals[MAX_VALS];
size_t j;
args.app_parse = ast_strdup(i->value);
if (!args.app_parse) {
ast_ari_response_alloc_failed(response);
goto fin;
}
if (strlen(args.app_parse) == 0) {
/* ast_app_separate_args can't handle "" */
args.app_count = 1;
vals[0] = args.app_parse;
} else {
args.app_count = ast_app_separate_args(
args.app_parse, ',', vals,
ARRAY_LEN(vals));
}
if (args.app_count == 0) {
ast_ari_response_alloc_failed(response);
goto fin;
}
if (args.app_count >= MAX_VALS) {
ast_ari_response_error(response, 400,
"Bad Request",
"Too many values for app");
goto fin;
}
args.app = ast_malloc(sizeof(*args.app) * args.app_count);
if (!args.app) {
ast_ari_response_alloc_failed(response);
goto fin;
}
for (j = 0; j < args.app_count; ++j) {
args.app[j] = (vals[j]);
}
} else
{}
}
ast_ari_websocket_event_websocket(session, headers, &args);
fin: __attribute__((unused))
if (response && response->response_code != 0) {
/* Param parsing failure */
/* TODO - ideally, this would return the error code to the
* HTTP client; but we've already done the WebSocket
* negotiation. Param parsing should happen earlier, but we
* need a way to pass it through the WebSocket code to the
* callback */
RAII_VAR(char *, msg, NULL, ast_json_free);
if (response->message) {
msg = ast_json_dump_string(response->message);
} else {
ast_log(LOG_ERROR, "Missing response message\n");
}
if (msg) {
ast_websocket_write(ws_session,
AST_WEBSOCKET_OPCODE_TEXT, msg, strlen(msg));
}
}
ast_free(args.app_parse);
ast_free(args.app);
}
/*! \brief REST handler for /api-docs/events.{format} */
static struct stasis_rest_handlers events = {
.path_segment = "events",
.callbacks = {
},
.num_children = 0,
.children = { }
};
static int load_module(void)
{
int res = 0;
events.ws_server = ast_websocket_server_create();
if (!events.ws_server) {
return AST_MODULE_LOAD_FAILURE;
}
res |= ast_websocket_server_add_protocol(events.ws_server,
"ari", ast_ari_event_websocket_ws_cb);
stasis_app_ref();
res |= ast_ari_add_handler(&events);
return res;
}
static int unload_module(void)
{
ast_ari_remove_handler(&events);
ao2_cleanup(events.ws_server);
events.ws_server = NULL;
stasis_app_unref();
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "RESTful API module - WebSocket resource",
.load = load_module,
.unload = unload_module,
.nonoptreq = "res_ari,res_stasis",
);
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