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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2005, Digium, Inc.
*
* 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 UserEvent application -- send manager event
*
* \ingroup applications
*/
/*** MODULEINFO
<support_level>core</support_level>
***/
#include "asterisk.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/manager.h"
#include "asterisk/app.h"
#include "asterisk/json.h"
#include "asterisk/stasis_channels.h"
/*** DOCUMENTATION
<application name="UserEvent" language="en_US">
<synopsis>
Send an arbitrary user-defined event to parties interested in a channel (AMI users and relevant res_stasis applications).
</synopsis>
<syntax>
<parameter name="eventname" required="true" />
<parameter name="body" />
</syntax>
<description>
<para>Sends an arbitrary event to interested parties, with an optional
<replaceable>body</replaceable> representing additional arguments. The
<replaceable>body</replaceable> may be specified as
a <literal>,</literal> delimited list of key:value pairs.</para>
<para>For AMI, each additional argument will be placed on a new line in
the event and the format of the event will be:</para>
<para> Event: UserEvent</para>
<para> UserEvent: <specified event name></para>
<para> [body]</para>
<para>If no <replaceable>body</replaceable> is specified, only Event and
UserEvent headers will be present.</para>
<para>For res_stasis applications, the event will be provided as a JSON
blob with additional arguments appearing as keys in the object and the
<replaceable>eventname</replaceable> under the
<literal>eventname</literal> key.</para>
</description>
<see-also>
<ref type="manager">UserEvent</ref>
<ref type="managerEvent">UserEvent</ref>
</see-also>
</application>
***/
static char *app = "UserEvent";
static int userevent_exec(struct ast_channel *chan, const char *data)
{
char *parse;
int x;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(eventname);
AST_APP_ARG(extra)[100];
);
RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "UserEvent requires an argument (eventname,optional event body)\n");
return -1;
}
parse = ast_strdupa(data);
AST_STANDARD_APP_ARGS(args, parse);
blob = ast_json_pack("{s: s}",
"eventname", args.eventname);
if (!blob) {
return -1;
}
for (x = 0; x < args.argc - 1; x++) {
char *key, *value = args.extra[x];
struct ast_json *json_value;
key = strsep(&value, ":");
if (!value) {
/* no ':' in string? */
continue;
}
value = ast_strip(value);
json_value = ast_json_string_create(value);
if (!json_value) {
return -1;
}
/* ref stolen by ast_json_object_set */
if (ast_json_object_set(blob, key, json_value)) {
return -1;
}
}
ast_channel_lock(chan);
ast_multi_object_blob_single_channel_publish(chan, ast_multi_user_event_type(), blob);
ast_channel_unlock(chan);
return 0;
}
static int unload_module(void)
{
return ast_unregister_application(app);
}
static int load_module(void)
{
return ast_register_application_xml(app, userevent_exec);
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Custom User Event Application");
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