asterisk/apps/app_page.c

/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (c) 2004 - 2005 Digium, Inc.  All rights reserved.
 *
 * Mark Spencer <markster@digium.com>
 *
 * This code is released under the GNU General Public License
 * version 2.0.  See LICENSE for more information.
 *
 * 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.
 *
 */

/*
 *
 * Page application
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

#include "asterisk.h"

ASTERISK_FILE_VERSION(__FILE__, "$Revision$")

#include "asterisk/options.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/app.h"


static const char *tdesc = "Page Multiple Phones";

static const char *app_page= "Page";

static const char *page_synopsis = "Pages phones";

static const char *page_descrip =
"Page(Technology/Resource&Technology2/Resource2[|options])\n"
"  Places outbound calls to the given technology / resource and dumps\n"
"them into a conference bridge as muted participants.  The original\n"
"caller is dumped into the conference as a speaker and the room is\n"
"destroyed when the original caller leaves.  Valid options are:\n"
"        d - full duplex audio\n"
"Always returns -1.\n";

STANDARD_LOCAL_USER;

LOCAL_USER_DECL;

#define PAGE_DUPLEX (1 << 0)

AST_DECLARE_OPTIONS(page_opts,{
        ['d'] = { PAGE_DUPLEX },
});

static int page_exec(struct ast_channel *chan, void *data)
{
	struct localuser *u;
	char *options;
	char *tech, *resource;
	char meetmeopts[80];
	struct ast_flags flags = { 0 };
	unsigned int confid = rand();
	struct ast_app *app;
	char *tmp;

	if (!data)
		return -1;

	if (ast_strlen_zero(data)) {
		ast_log(LOG_WARNING, "This application requires at least one argument (destination(s) to page)\n");
		return -1;
	}

	if (!(app = pbx_findapp("MeetMe"))) {
		ast_log(LOG_WARNING, "There is no MeetMe application available!\n");
		return -1;
	};

	if (!(options = ast_strdupa((char *) data))) {
		ast_log(LOG_ERROR, "Out of memory\n");
		return -1;
	}
		
	LOCAL_USER_ADD(u);

	tmp = strsep(&options, "|");
	if (options)
		ast_parseoptions(page_opts, &flags, NULL, options);

	snprintf(meetmeopts, sizeof(meetmeopts), "%ud|%sqxdw", confid, ast_test_flag(&flags, PAGE_DUPLEX) ? "" : "m");
	while ((tech = strsep(&tmp, "&"))) {
		if ((resource = strchr(tech, '/'))) {
			*resource++ = '\0';
			ast_pbx_outgoing_app(tech, AST_FORMAT_SLINEAR, resource, 30000,
					     "MeetMe", meetmeopts, NULL, 0, chan->cid.cid_num, chan->cid.cid_name, NULL, NULL);
		} else {
			ast_log(LOG_WARNING, "Incomplete destination '%s' supplied.\n", tech);
		}
	}
	snprintf(meetmeopts, sizeof(meetmeopts), "%ud|A%sqxd", confid, ast_test_flag(&flags, PAGE_DUPLEX) ? "" : "t");
	pbx_exec(chan, app, meetmeopts, 1);

	LOCAL_USER_REMOVE(u);

	return -1;
}

int unload_module(void)
{
	STANDARD_HANGUP_LOCALUSERS;

	return ast_unregister_application(app_page);
}

int load_module(void)
{
	return ast_register_application(app_page, page_exec, page_synopsis, page_descrip);
}

char *description(void)
{
	return (char *) tdesc;
}

int usecount(void)
{
	int res;

	STANDARD_USECOUNT(res);

	return res;
}

char *key()
{
	return ASTERISK_GPL_KEY;
}