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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2005, Digium, Inc.
*
* Mark Spencer <markster@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 App to send DTMF digits
*
* \author Mark Spencer <markster@digium.com>
*
* \ingroup applications
*/
/*** MODULEINFO
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision: 373954 $")
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/app.h"
#include "asterisk/manager.h"
#include "asterisk/channel.h"
/*** DOCUMENTATION
<application name="SendDTMF" language="en_US">
<synopsis>
Sends arbitrary DTMF digits
</synopsis>
<syntax>
<parameter name="digits" required="true">
<para>List of digits 0-9,*#,a-d,A-D to send also w for a half second pause,
and f or F for a flash-hook if the channel supports
flash-hook.</para>
</parameter>
<parameter name="timeout_ms" required="false">
<para>Amount of time to wait in ms between tones. (defaults to .25s)</para>
</parameter>
<parameter name="duration_ms" required="false">
<para>Duration of each digit</para>
</parameter>
<parameter name="channel" required="false">
<para>Channel where digits will be played</para>
</parameter>
</syntax>
<description>
<para>It will send all digits or terminate if it encounters an error.</para>
</description>
<see-also>
<ref type="application">Read</ref>
</see-also>
</application>
<manager name="PlayDTMF" language="en_US">
<synopsis>
Play DTMF signal on a specific channel.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Channel name to send digit to.</para>
</parameter>
<parameter name="Digit" required="true">
<para>The DTMF digit to play.</para>
</parameter>
</syntax>
<description>
<para>Plays a dtmf digit on the specified channel.</para>
</description>
</manager>
***/
static const char senddtmf_name[] = "SendDTMF";
static int senddtmf_exec(struct ast_channel *chan, const char *vdata)
{
int res;
char *data;
int dinterval = 0, duration = 0;
struct ast_channel *chan_found = NULL;
struct ast_channel *chan_dest = chan;
struct ast_channel *chan_autoservice = NULL;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(digits);
AST_APP_ARG(dinterval);
AST_APP_ARG(duration);
AST_APP_ARG(channel);
);
if (ast_strlen_zero(vdata)) {
ast_log(LOG_WARNING, "SendDTMF requires an argument\n");
return 0;
}
data = ast_strdupa(vdata);
AST_STANDARD_APP_ARGS(args, data);
if (ast_strlen_zero(args.digits)) {
ast_log(LOG_WARNING, "The digits argument is required (0-9,*#,a-d,A-D,wfF)\n");
return 0;
}
if (!ast_strlen_zero(args.dinterval)) {
ast_app_parse_timelen(args.dinterval, &dinterval, TIMELEN_MILLISECONDS);
}
if (!ast_strlen_zero(args.duration)) {
ast_app_parse_timelen(args.duration, &duration, TIMELEN_MILLISECONDS);
}
if (!ast_strlen_zero(args.channel)) {
chan_found = ast_channel_get_by_name(args.channel);
if (!chan_found) {
ast_log(LOG_WARNING, "No such channel: %s\n", args.channel);
return 0;
}
chan_dest = chan_found;
if (chan_found != chan) {
chan_autoservice = chan;
}
}
res = ast_dtmf_stream(chan_dest, chan_autoservice, args.digits,
dinterval <= 0 ? 250 : dinterval, duration);
if (chan_found) {
ast_channel_unref(chan_found);
}
return chan_autoservice ? 0 : res;
}
static int manager_play_dtmf(struct mansession *s, const struct message *m)
{
const char *channel = astman_get_header(m, "Channel");
const char *digit = astman_get_header(m, "Digit");
struct ast_channel *chan;
if (!(chan = ast_channel_get_by_name(channel))) {
astman_send_error(s, m, "Channel not found");
return 0;
}
if (ast_strlen_zero(digit)) {
astman_send_error(s, m, "No digit specified");
chan = ast_channel_unref(chan);
return 0;
}
ast_senddigit(chan, *digit, 0);
chan = ast_channel_unref(chan);
astman_send_ack(s, m, "DTMF successfully queued");
return 0;
}
static int unload_module(void)
{
int res;
res = ast_unregister_application(senddtmf_name);
res |= ast_manager_unregister("PlayDTMF");
return res;
}
static int load_module(void)
{
int res;
res = ast_manager_register_xml("PlayDTMF", EVENT_FLAG_CALL, manager_play_dtmf);
res |= ast_register_application_xml(senddtmf_name, senddtmf_exec);
return res;
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Send DTMF digits Application");
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