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			142 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			142 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Asterisk -- An open source telephony toolkit.
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 *
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 * Copyright (C) 2012 - 2013, Digium, Inc.
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 *
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 * David M. Lee, II <dlee@digium.com>
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 *
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 * See http://www.asterisk.org for more information about
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 * the Asterisk project. Please do not directly contact
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 * any of the maintainers of this project for assistance;
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 * the project provides a web site, mailing lists and IRC
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 * channels for your use.
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 *
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 * This program is free software, distributed under the terms of
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 * the GNU General Public License Version 2. See the LICENSE file
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 * at the top of the source tree.
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 */
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/*! \file
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 *
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 * \brief Stasis dialplan application.
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 *
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 * \author David M. Lee, II <dlee@digium.com>
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 */
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/*** MODULEINFO
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	<depend>res_stasis</depend>
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	<support_level>core</support_level>
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 ***/
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#include "asterisk.h"
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#include "asterisk/app.h"
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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#include "asterisk/stasis.h"
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#include "asterisk/stasis_app_impl.h"
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/*** DOCUMENTATION
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	<application name="Stasis" language="en_US">
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		<synopsis>Invoke an external Stasis application.</synopsis>
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		<syntax>
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			<parameter name="app_name" required="true">
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				<para>Name of the application to invoke.</para>
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			</parameter>
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			<parameter name="args">
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				<para>Optional comma-delimited arguments for the
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				application invocation.</para>
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			</parameter>
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		</syntax>
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		<description>
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			<para>Invoke a Stasis application.</para>
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			<para>This application will set the following channel variable upon
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			completion:</para>
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			<variablelist>
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				<variable name="STASISSTATUS">
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					<para>This indicates the status of the execution of the
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					Stasis application.</para>
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					<value name="SUCCESS">
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						The channel has exited Stasis without any failures in
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						Stasis.
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					</value>
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					<value name="FAILED">
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						A failure occurred when executing the Stasis
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						The app registry is not instantiated; The app
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						application. Some (not all) possible reasons for this:
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						requested is not registered; The app requested is not
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						active; Stasis couldn't send a start message.
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					</value>
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				</variable>
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			</variablelist>
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		</description>
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	</application>
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 ***/
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/*! \brief Maximum number of arguments for the Stasis dialplan application */
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#define MAX_ARGS 128
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/*! \brief Dialplan application name */
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static const char *stasis = "Stasis";
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/*! \brief Stasis dialplan application callback */
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static int app_exec(struct ast_channel *chan, const char *data)
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{
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	char *parse = NULL;
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	int ret = -1;
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	AST_DECLARE_APP_ARGS(args,
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		AST_APP_ARG(app_name);
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		AST_APP_ARG(app_argv)[MAX_ARGS];
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	);
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	ast_assert(chan != NULL);
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	ast_assert(data != NULL);
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	pbx_builtin_setvar_helper(chan, "STASISSTATUS", "");
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	/* parse the arguments */
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	parse = ast_strdupa(data);
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	AST_STANDARD_APP_ARGS(args, parse);
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	if (args.argc < 1) {
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		ast_log(LOG_WARNING, "Stasis app_name argument missing\n");
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	} else {
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		ret = stasis_app_exec(chan,
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		                      args.app_name,
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		                      args.argc - 1,
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		                      args.app_argv);
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	}
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	if (ret) {
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		/* set ret to 0 so pbx_core doesnt hangup the channel */
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		if (!ast_check_hangup(chan)) {
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			ret = 0;
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		} else {
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			ret = -1;
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		}
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		pbx_builtin_setvar_helper(chan, "STASISSTATUS", "FAILED");
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	} else {
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		pbx_builtin_setvar_helper(chan, "STASISSTATUS", "SUCCESS");
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	}
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	return ret;
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}
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static int load_module(void)
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{
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	return ast_register_application_xml(stasis, app_exec);
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}
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static int unload_module(void)
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{
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	return ast_unregister_application(stasis);
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Stasis dialplan application",
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	.support_level = AST_MODULE_SUPPORT_CORE,
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	.load = load_module,
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	.unload = unload_module,
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	.requires = "res_stasis",
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);
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