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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, malleable, llc.
*
* Sean Bright <sean@malleable.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.
*/
/*** MODULEINFO
<depend>pjproject</depend>
<depend>res_pjsip</depend>
<depend>res_pjsip_session</depend>
<support_level>core</support_level>
***/
#include "asterisk.h"
#include <pjsip.h>
#include <pjsip_ua.h>
#include "asterisk/features.h"
#include "asterisk/res_pjsip.h"
#include "asterisk/res_pjsip_session.h"
#include "asterisk/module.h"
#include "asterisk/features_config.h"
static void send_response(struct ast_sip_session *session, int code, struct pjsip_rx_data *rdata)
{
pjsip_tx_data *tdata;
if (pjsip_dlg_create_response(session->inv_session->dlg, rdata, code, NULL, &tdata) == PJ_SUCCESS) {
struct pjsip_transaction *tsx = pjsip_rdata_get_tsx(rdata);
pjsip_dlg_send_response(session->inv_session->dlg, tsx, tdata);
}
}
static int handle_incoming_request(struct ast_sip_session *session, struct pjsip_rx_data *rdata)
{
static const pj_str_t rec_str = { "Record", 6 };
pjsip_generic_string_hdr *record;
int feature_res;
char feature_code[AST_FEATURE_MAX_LEN];
const char *feature;
char *digit;
record = pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &rec_str, NULL);
/* If we don't have Record header, we have nothing to do */
if (!record) {
return 0;
}
if (!pj_stricmp2(&record->hvalue, "on")) {
feature = session->endpoint->info.recording.onfeature;
} else if (!pj_stricmp2(&record->hvalue, "off")) {
feature = session->endpoint->info.recording.offfeature;
} else {
/* Don't send response because another module may handle this */
return 0;
}
if (!session->channel) {
send_response(session, 481, rdata);
return 1;
}
/* Is this endpoint configured with One Touch Recording? */
if (!session->endpoint->info.recording.enabled || ast_strlen_zero(feature)) {
send_response(session, 403, rdata);
return 1;
}
ast_channel_lock(session->channel);
feature_res = ast_get_feature(session->channel, feature, feature_code, sizeof(feature_code));
ast_channel_unlock(session->channel);
if (feature_res || ast_strlen_zero(feature_code)) {
send_response(session, 403, rdata);
return 1;
}
for (digit = feature_code; *digit; ++digit) {
struct ast_frame f = { AST_FRAME_DTMF, .subclass.integer = *digit, .len = 100 };
ast_queue_frame(session->channel, &f);
}
send_response(session, 200, rdata);
return 1;
}
static struct ast_sip_session_supplement info_supplement = {
.method = "INFO",
.priority = AST_SIP_SUPPLEMENT_PRIORITY_FIRST,
.incoming_request = handle_incoming_request,
};
static int load_module(void)
{
CHECK_PJSIP_SESSION_MODULE_LOADED();
if (ast_sip_session_register_supplement(&info_supplement)) {
ast_log(LOG_ERROR, "Unable to register One Touch Recording supplement\n");
return AST_MODULE_LOAD_DECLINE;
}
return AST_MODULE_LOAD_SUCCESS;
}
static int unload_module(void)
{
ast_sip_session_unregister_supplement(&info_supplement);
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP INFO One Touch Recording Support",
.support_level = AST_MODULE_SUPPORT_CORE,
.load = load_module,
.unload = unload_module,
.load_pri = AST_MODPRI_APP_DEPEND,
);
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