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freeswitch/src/switch_ivr.c
Brian West ae220d3341 update email 
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11643 d0543943-73ff-0310-b7d9-9358b9ac24b2
2009-02-04 21:20:54 +00:00

2014 lines
63 KiB
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/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005/2006, Anthony Minessale II <anthm@freeswitch.org>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Anthony Minessale II <anthm@freeswitch.org>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Anthony Minessale II <anthm@freeswitch.org>
* Paul D. Tinsley <pdt at jackhammer.org>
* Neal Horman <neal at wanlink dot com>
* Matt Klein <mklein@nmedia.net>
* Michael Jerris <mike@jerris.com>
* Ken Rice <krice at suspicious dot org>
*
* switch_ivr.c -- IVR Library
*
*/
#include <switch.h>
#include <switch_ivr.h>
#include "stfu.h"
SWITCH_DECLARE(switch_status_t) switch_ivr_sleep(switch_core_session_t *session, uint32_t ms, switch_bool_t sync, switch_input_args_t *args)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_time_t start = switch_micro_time_now(), now, done = switch_micro_time_now() + (ms * 1000);
switch_frame_t *read_frame, cng_frame = { 0 };
int32_t left, elapsed;
char data[2] = "";
switch_frame_t write_frame = { 0 };
unsigned char *abuf = NULL;
switch_codec_implementation_t imp = {0};
switch_codec_t codec = { 0 };
int sval = 0;
const char *var;
/*
if (!switch_channel_test_flag(channel, CF_OUTBOUND) && !switch_channel_test_flag(channel, CF_PROXY_MODE) &&
!switch_channel_media_ready(channel) && !switch_channel_test_flag(channel, CF_SERVICE)) {
if ((status = switch_channel_pre_answer(channel)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot establish media.\n");
return SWITCH_STATUS_FALSE;
}
}
*/
if (!switch_channel_media_ready(channel)) {
switch_yield(ms * 1000);
return SWITCH_STATUS_SUCCESS;
}
if (ms > 100 && (var = switch_channel_get_variable(channel, SWITCH_SEND_SILENCE_WHEN_IDLE_VARIABLE)) && (sval = atoi(var))) {
switch_core_session_get_read_impl(session, &imp);
if (switch_core_codec_init(&codec,
"L16",
NULL,
imp.samples_per_second,
imp.microseconds_per_packet / 1000,
imp.number_of_channels,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec Error L16@%uhz %u channels %dms\n",
imp.samples_per_second, imp.number_of_channels, imp.microseconds_per_packet / 1000);
return SWITCH_STATUS_FALSE;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Codec Activated L16@%uhz %u channels %dms\n",
imp.samples_per_second, imp.number_of_channels, imp.microseconds_per_packet / 1000);
write_frame.codec = &codec;
switch_zmalloc(abuf, SWITCH_RECOMMENDED_BUFFER_SIZE);
write_frame.data = abuf;
write_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
write_frame.datalen = imp.decoded_bytes_per_packet;
write_frame.samples = write_frame.datalen / sizeof(int16_t);
}
if (!write_frame.datalen) {
sval = 0;
}
cng_frame.data = data;
cng_frame.datalen = 2;
cng_frame.buflen = 2;
switch_set_flag((&cng_frame), SFF_CNG);
if (sync) {
switch_channel_audio_sync(channel);
}
if (!ms) {
return SWITCH_STATUS_SUCCESS;
}
for (;;) {
now = switch_micro_time_now();
elapsed = (int32_t) ((now - start) / 1000);
left = ms - elapsed;
if (!switch_channel_ready(channel)) {
status = SWITCH_STATUS_FALSE;
break;
}
if (switch_channel_test_flag(channel, CF_BREAK)) {
switch_channel_clear_flag(channel, CF_BREAK);
status = SWITCH_STATUS_BREAK;
break;
}
if (now > done || left <= 0) {
break;
}
if (switch_core_session_private_event_count(session)) {
switch_ivr_parse_all_events(session);
}
if (args && (args->input_callback || args->buf || args->buflen)) {
switch_dtmf_t dtmf;
/*
dtmf handler function you can hook up to be executed when a digit is dialed during playback
if you return anything but SWITCH_STATUS_SUCCESS the playback will stop.
*/
if (switch_channel_has_dtmf(channel)) {
if (!args->input_callback && !args->buf) {
status = SWITCH_STATUS_BREAK;
break;
}
switch_channel_dequeue_dtmf(channel, &dtmf);
if (args->input_callback) {
status = args->input_callback(session, (void *) &dtmf, SWITCH_INPUT_TYPE_DTMF, args->buf, args->buflen);
} else {
switch_copy_string((char *) args->buf, (void *) &dtmf, args->buflen);
status = SWITCH_STATUS_BREAK;
}
}
if (args->input_callback) {
switch_event_t *event = NULL;
if (switch_core_session_dequeue_event(session, &event) == SWITCH_STATUS_SUCCESS) {
status = args->input_callback(session, event, SWITCH_INPUT_TYPE_EVENT, args->buf, args->buflen);
switch_event_destroy(&event);
}
}
if (status != SWITCH_STATUS_SUCCESS) {
break;
}
}
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
break;
}
if (sval && write_frame.datalen) {
switch_generate_sln_silence((int16_t *) write_frame.data, write_frame.samples, sval);
switch_core_session_write_frame(session, &write_frame, SWITCH_IO_FLAG_NONE, 0);
} else {
switch_core_session_write_frame(session, &cng_frame, SWITCH_IO_FLAG_NONE, 0);
}
}
if (write_frame.codec) {
switch_core_codec_destroy(&codec);
}
switch_safe_free(abuf);
return status;
}
static void *SWITCH_THREAD_FUNC unicast_thread_run(switch_thread_t *thread, void *obj)
{
switch_unicast_conninfo_t *conninfo = (switch_unicast_conninfo_t *) obj;
switch_size_t len;
switch_channel_t *channel;
if (!conninfo) {
return NULL;
}
channel = switch_core_session_get_channel(conninfo->session);
while (switch_test_flag(conninfo, SUF_READY) && switch_test_flag(conninfo, SUF_THREAD_RUNNING)) {
len = conninfo->write_frame.buflen;
if (switch_socket_recv(conninfo->socket, conninfo->write_frame.data, &len) != SWITCH_STATUS_SUCCESS || len == 0) {
break;
}
conninfo->write_frame.datalen = (uint32_t) len;
conninfo->write_frame.samples = conninfo->write_frame.datalen / 2;
switch_core_session_write_frame(conninfo->session, &conninfo->write_frame, SWITCH_IO_FLAG_NONE, conninfo->stream_id);
}
switch_clear_flag_locked(conninfo, SUF_READY);
switch_clear_flag_locked(conninfo, SUF_THREAD_RUNNING);
return NULL;
}
static void unicast_thread_launch(switch_unicast_conninfo_t *conninfo)
{
switch_thread_t *thread;
switch_threadattr_t *thd_attr = NULL;
switch_threadattr_create(&thd_attr, switch_core_session_get_pool(conninfo->session));
switch_threadattr_detach_set(thd_attr, 1);
switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
switch_set_flag_locked(conninfo, SUF_THREAD_RUNNING);
switch_thread_create(&thread, thd_attr, unicast_thread_run, conninfo, switch_core_session_get_pool(conninfo->session));
}
SWITCH_DECLARE(switch_status_t) switch_ivr_deactivate_unicast(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_unicast_conninfo_t *conninfo;
int sanity = 0;
if (!switch_channel_test_flag(channel, CF_UNICAST)) {
return SWITCH_STATUS_FALSE;
}
if ((conninfo = switch_channel_get_private(channel, "unicast"))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Shutting down unicast connection\n");
switch_clear_flag_locked(conninfo, SUF_READY);
switch_socket_shutdown(conninfo->socket, SWITCH_SHUTDOWN_READWRITE);
while (switch_test_flag(conninfo, SUF_THREAD_RUNNING)) {
switch_yield(10000);
if (++sanity >= 10000) {
break;
}
}
if (conninfo->read_codec.implementation) {
switch_core_codec_destroy(&conninfo->read_codec);
}
switch_socket_close(conninfo->socket);
}
switch_channel_clear_flag(channel, CF_UNICAST);
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_activate_unicast(switch_core_session_t *session,
char *local_ip,
switch_port_t local_port,
char *remote_ip, switch_port_t remote_port, char *transport, char *flags)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_unicast_conninfo_t *conninfo = switch_core_session_alloc(session, sizeof(*conninfo));
switch_codec_t *read_codec;
switch_assert(conninfo != NULL);
conninfo->local_ip = switch_core_session_strdup(session, local_ip);
conninfo->local_port = local_port;
conninfo->remote_ip = switch_core_session_strdup(session, remote_ip);
conninfo->remote_port = remote_port;
conninfo->session = session;
if (!strcasecmp(transport, "udp")) {
conninfo->type = AF_INET;
conninfo->transport = SOCK_DGRAM;
} else if (!strcasecmp(transport, "tcp")) {
conninfo->type = AF_INET;
conninfo->transport = SOCK_STREAM;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid transport %s\n", transport);
goto fail;
}
if (flags) {
if (strstr(flags, "native")) {
switch_set_flag(conninfo, SUF_NATIVE);
}
}
switch_mutex_init(&conninfo->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
read_codec = switch_core_session_get_read_codec(session);
if (!switch_test_flag(conninfo, SUF_NATIVE)) {
if (switch_core_codec_init(&conninfo->read_codec,
"L16",
NULL,
read_codec->implementation->actual_samples_per_second,
read_codec->implementation->microseconds_per_packet / 1000,
1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL, switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
"Raw Codec Activation Success L16@%uhz 1 channel %dms\n",
read_codec->implementation->actual_samples_per_second, read_codec->implementation->microseconds_per_packet / 1000);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Raw Codec Activation Failed L16@%uhz 1 channel %dms\n",
read_codec->implementation->actual_samples_per_second, read_codec->implementation->microseconds_per_packet / 1000);
goto fail;
}
}
conninfo->write_frame.data = conninfo->write_frame_data;
conninfo->write_frame.buflen = sizeof(conninfo->write_frame_data);
conninfo->write_frame.codec = switch_test_flag(conninfo, SUF_NATIVE) ? read_codec : &conninfo->read_codec;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "connect %s:%d->%s:%d\n",
conninfo->local_ip, conninfo->local_port, conninfo->remote_ip, conninfo->remote_port);
if (switch_sockaddr_info_get(&conninfo->local_addr,
conninfo->local_ip, SWITCH_UNSPEC, conninfo->local_port, 0,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
goto fail;
}
if (switch_sockaddr_info_get(&conninfo->remote_addr,
conninfo->remote_ip, SWITCH_UNSPEC, conninfo->remote_port, 0,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
goto fail;
}
if (switch_socket_create(&conninfo->socket, AF_INET, SOCK_DGRAM, 0, switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
if (switch_socket_bind(conninfo->socket, conninfo->local_addr) != SWITCH_STATUS_SUCCESS) {
goto fail;
}
} else {
goto fail;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Created unicast connection %s:%d->%s:%d\n",
conninfo->local_ip, conninfo->local_port, conninfo->remote_ip, conninfo->remote_port);
switch_channel_set_private(channel, "unicast", conninfo);
switch_channel_set_flag(channel, CF_UNICAST);
switch_set_flag_locked(conninfo, SUF_READY);
return SWITCH_STATUS_SUCCESS;
fail:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Failure creating unicast connection %s:%d->%s:%d\n",
conninfo->local_ip, conninfo->local_port, conninfo->remote_ip, conninfo->remote_port);
return SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_parse_event(switch_core_session_t *session, switch_event_t *event)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
char *cmd = switch_event_get_header(event, "call-command");
unsigned long cmd_hash;
switch_ssize_t hlen = -1;
unsigned long CMD_EXECUTE = switch_hashfunc_default("execute", &hlen);
unsigned long CMD_HANGUP = switch_hashfunc_default("hangup", &hlen);
unsigned long CMD_NOMEDIA = switch_hashfunc_default("nomedia", &hlen);
unsigned long CMD_UNICAST = switch_hashfunc_default("unicast", &hlen);
char *lead_frames = switch_event_get_header(event, "lead-frames");
char *event_lock = switch_event_get_header(event, "event-lock");
switch_status_t status = SWITCH_STATUS_FALSE;
if (switch_strlen_zero(cmd)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid Command!\n");
return SWITCH_STATUS_FALSE;
}
cmd_hash = switch_hashfunc_default(cmd, &hlen);
switch_channel_set_flag(channel, CF_EVENT_PARSE);
if (switch_true(event_lock)) {
switch_channel_set_flag(channel, CF_EVENT_LOCK);
}
if (lead_frames) {
switch_frame_t *read_frame;
int frame_count = atoi(lead_frames);
int max_frames = frame_count * 2;
while (frame_count > 0 && --max_frames > 0) {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
goto done;
}
if (!switch_test_flag(read_frame, SFF_CNG)) {
frame_count--;
}
}
}
if (cmd_hash == CMD_EXECUTE) {
switch_application_interface_t *application_interface;
char *app_name = switch_event_get_header(event, "execute-app-name");
char *app_arg = switch_event_get_header(event, "execute-app-arg");
char *loop_h = switch_event_get_header(event, "loops");
char *hold_bleg = switch_event_get_header(event, "hold-bleg");
int loops = 1;
if (loop_h) {
loops = atoi(loop_h);
}
if (app_name) {
if ((application_interface = switch_loadable_module_get_application_interface(app_name))) {
if (application_interface->application_function) {
int x;
const char *b_uuid = NULL;
switch_core_session_t *b_session = NULL;
switch_channel_clear_flag(channel, CF_STOP_BROADCAST);
switch_channel_set_flag(channel, CF_BROADCAST);
if (hold_bleg && switch_true(hold_bleg)) {
if ((b_uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))) {
const char *stream;
b_uuid = switch_core_session_strdup(session, b_uuid);
if (!(stream = switch_channel_get_variable_partner(channel, SWITCH_HOLD_MUSIC_VARIABLE))) {
stream = switch_channel_get_variable(channel, SWITCH_HOLD_MUSIC_VARIABLE);
}
if (stream && switch_is_moh(stream)) {
if ((b_session = switch_core_session_locate(b_uuid))) {
switch_channel_t *b_channel = switch_core_session_get_channel(b_session);
switch_ivr_broadcast(b_uuid, stream, SMF_ECHO_ALEG | SMF_LOOP);
switch_channel_wait_for_flag(b_channel, CF_BROADCAST, SWITCH_TRUE, 5000, NULL);
switch_core_session_rwunlock(b_session);
}
} else {
b_uuid = NULL;
}
}
}
for (x = 0; x < loops || loops < 0; x++) {
switch_time_t b4, aftr;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s Command Execute %s(%s)\n",
switch_channel_get_name(channel), app_name, switch_str_nil(app_arg));
b4 = switch_micro_time_now();
switch_core_session_exec(session, application_interface, app_arg);
aftr = switch_micro_time_now();
if (!switch_channel_ready(channel) || switch_channel_test_flag(channel, CF_STOP_BROADCAST) || aftr - b4 < 500000) {
break;
}
}
if (b_uuid) {
if ((b_session = switch_core_session_locate(b_uuid))) {
switch_channel_t *b_channel = switch_core_session_get_channel(b_session);
switch_channel_stop_broadcast(b_channel);
switch_channel_wait_for_flag(b_channel, CF_BROADCAST, SWITCH_FALSE, 5000, NULL);
switch_core_session_rwunlock(b_session);
}
}
switch_channel_clear_flag(channel, CF_BROADCAST);
}
UNPROTECT_INTERFACE(application_interface);
}
}
} else if (cmd_hash == CMD_UNICAST) {
char *local_ip = switch_event_get_header(event, "local-ip");
char *local_port = switch_event_get_header(event, "local-port");
char *remote_ip = switch_event_get_header(event, "remote-ip");
char *remote_port = switch_event_get_header(event, "remote-port");
char *transport = switch_event_get_header(event, "transport");
char *flags = switch_event_get_header(event, "flags");
if (switch_strlen_zero(local_ip)) {
local_ip = "127.0.0.1";
}
if (switch_strlen_zero(remote_ip)) {
remote_ip = "127.0.0.1";
}
if (switch_strlen_zero(local_port)) {
local_port = "8025";
}
if (switch_strlen_zero(remote_port)) {
remote_port = "8026";
}
if (switch_strlen_zero(transport)) {
transport = "udp";
}
switch_ivr_activate_unicast(session, local_ip, (switch_port_t) atoi(local_port), remote_ip, (switch_port_t) atoi(remote_port), transport, flags);
} else if (cmd_hash == CMD_HANGUP) {
char *cause_name = switch_event_get_header(event, "hangup-cause");
switch_call_cause_t cause = SWITCH_CAUSE_NORMAL_CLEARING;
if (cause_name) {
cause = switch_channel_str2cause(cause_name);
}
switch_channel_hangup(channel, cause);
} else if (cmd_hash == CMD_NOMEDIA) {
char *uuid = switch_event_get_header(event, "nomedia-uuid");
switch_ivr_nomedia(uuid, SMF_REBRIDGE);
}
status = SWITCH_STATUS_SUCCESS;
done:
switch_channel_clear_flag(channel, CF_EVENT_PARSE);
switch_channel_clear_flag(channel, CF_EVENT_LOCK);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_parse_next_event(switch_core_session_t *session)
{
switch_event_t *event;
if (switch_core_session_dequeue_private_event(session, &event) == SWITCH_STATUS_SUCCESS) {
switch_ivr_parse_event(session, event);
switch_event_fire(&event);
return SWITCH_STATUS_SUCCESS;
}
return SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_parse_all_events(switch_core_session_t *session)
{
while (switch_ivr_parse_next_event(session) == SWITCH_STATUS_SUCCESS);
switch_ivr_sleep(session, 0, SWITCH_TRUE, NULL);
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_park(switch_core_session_t *session, switch_input_args_t *args)
{
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_frame_t *read_frame;
int stream_id = 0;
switch_event_t *event;
switch_unicast_conninfo_t *conninfo = NULL;
switch_codec_t *read_codec;
uint32_t rate;
uint32_t bpf;
const char *to;
int timeout = 0;
time_t expires = 0;
if (switch_channel_test_flag(channel, CF_CONTROLLED)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot park channels that are under control already.\n");
return SWITCH_STATUS_FALSE;
}
if (!switch_channel_test_flag(channel, CF_ANSWERED)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Careful, Channel is unanswered. Pre-answering...\n");
if ((status = switch_channel_pre_answer(channel)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot establish media.\n");
return SWITCH_STATUS_FALSE;
}
}
if (switch_channel_test_flag(channel, CF_PROXY_MODE)) {
return SWITCH_STATUS_FALSE;
}
read_codec = switch_core_session_get_read_codec(session);
if (!read_codec || !read_codec->implementation) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot park channels that have no read codec.\n");
return SWITCH_STATUS_FALSE;
}
rate = read_codec->implementation->actual_samples_per_second;
bpf = read_codec->implementation->decoded_bytes_per_packet;
if ((to = switch_channel_get_variable(channel, "park_timeout"))) {
if ((timeout = atoi(to)) < 0) {
timeout = 0;
} else {
expires = switch_epoch_time_now(NULL) + timeout;
}
}
switch_channel_set_flag(channel, CF_CONTROLLED);
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_PARK) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
while (read_codec && switch_channel_ready(channel) && switch_channel_test_flag(channel, CF_CONTROLLED)) {
if ((status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, stream_id)) == SWITCH_STATUS_SUCCESS) {
if (!SWITCH_READ_ACCEPTABLE(status)) {
break;
}
if (expires && switch_epoch_time_now(NULL) >= expires) {
switch_channel_hangup(channel, SWITCH_CAUSE_RECOVERY_ON_TIMER_EXPIRE);
break;
}
if (switch_channel_test_flag(channel, CF_UNICAST)) {
if (!conninfo) {
if (!(conninfo = switch_channel_get_private(channel, "unicast"))) {
switch_channel_clear_flag(channel, CF_UNICAST);
}
if (conninfo) {
unicast_thread_launch(conninfo);
}
}
if (conninfo) {
switch_size_t len = 0;
uint32_t flags = 0;
switch_byte_t decoded[SWITCH_RECOMMENDED_BUFFER_SIZE];
uint32_t dlen = sizeof(decoded);
switch_status_t tstatus;
switch_byte_t *sendbuf = NULL;
uint32_t sendlen = 0;
if (switch_test_flag(read_frame, SFF_CNG)) {
sendlen = bpf;
switch_assert(sendlen <= SWITCH_RECOMMENDED_BUFFER_SIZE);
memset(decoded, 255, sendlen);
sendbuf = decoded;
tstatus = SWITCH_STATUS_SUCCESS;
} else {
if (switch_test_flag(conninfo, SUF_NATIVE)) {
tstatus = SWITCH_STATUS_NOOP;
} else {
tstatus = switch_core_codec_decode(read_codec,
&conninfo->read_codec,
read_frame->data,
read_frame->datalen,
read_codec->implementation->actual_samples_per_second, decoded, &dlen, &rate, &flags);
}
switch (tstatus) {
case SWITCH_STATUS_NOOP:
case SWITCH_STATUS_BREAK:
sendbuf = read_frame->data;
sendlen = read_frame->datalen;
tstatus = SWITCH_STATUS_SUCCESS;
break;
case SWITCH_STATUS_SUCCESS:
sendbuf = decoded;
sendlen = dlen;
tstatus = SWITCH_STATUS_SUCCESS;
break;
default:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Codec Error\n");
switch_ivr_deactivate_unicast(session);
break;
}
}
if (tstatus == SWITCH_STATUS_SUCCESS) {
len = sendlen;
if (switch_socket_sendto(conninfo->socket, conninfo->remote_addr, 0, (void *) sendbuf, &len) != SWITCH_STATUS_SUCCESS) {
switch_ivr_deactivate_unicast(session);
}
}
}
}
if (switch_core_session_private_event_count(session)) {
switch_ivr_parse_all_events(session);
}
if (switch_channel_has_dtmf(channel)) {
switch_dtmf_t dtmf = { 0 };
switch_channel_dequeue_dtmf(channel, &dtmf);
if (args && args->input_callback) {
if ((status = args->input_callback(session, (void *) &dtmf, SWITCH_INPUT_TYPE_DTMF, args->buf, args->buflen)) != SWITCH_STATUS_SUCCESS) {
break;
}
}
}
if (switch_core_session_dequeue_event(session, &event) == SWITCH_STATUS_SUCCESS) {
if (args && args->input_callback) {
if ((status = args->input_callback(session, event, SWITCH_INPUT_TYPE_EVENT, args->buf, args->buflen)) != SWITCH_STATUS_SUCCESS) {
break;
}
} else {
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
}
}
}
switch_channel_clear_flag(channel, CF_CONTROLLED);
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_UNPARK) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
if (switch_channel_test_flag(channel, CF_UNICAST)) {
switch_ivr_deactivate_unicast(session);
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_collect_digits_callback(switch_core_session_t *session, switch_input_args_t *args, uint32_t timeout)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_time_t started = 0;
uint32_t elapsed;
if (!args || !args->input_callback) {
return SWITCH_STATUS_GENERR;
}
if (timeout) {
started = switch_micro_time_now();
}
while (switch_channel_ready(channel)) {
switch_frame_t *read_frame = NULL;
switch_event_t *event;
switch_dtmf_t dtmf = { 0 };
if (switch_channel_test_flag(channel, CF_BREAK)) {
switch_channel_clear_flag(channel, CF_BREAK);
status = SWITCH_STATUS_BREAK;
break;
}
if (timeout) {
elapsed = (uint32_t) ((switch_micro_time_now() - started) / 1000);
if (elapsed >= timeout) {
break;
}
}
if (switch_core_session_private_event_count(session)) {
switch_ivr_parse_all_events(session);
}
if (switch_channel_has_dtmf(channel)) {
switch_channel_dequeue_dtmf(channel, &dtmf);
status = args->input_callback(session, (void *) &dtmf, SWITCH_INPUT_TYPE_DTMF, args->buf, args->buflen);
}
if (switch_core_session_dequeue_event(session, &event) == SWITCH_STATUS_SUCCESS) {
status = args->input_callback(session, event, SWITCH_INPUT_TYPE_EVENT, args->buf, args->buflen);
switch_event_destroy(&event);
}
if (status != SWITCH_STATUS_SUCCESS) {
break;
}
if (switch_channel_test_flag(channel, CF_SERVICE)) {
switch_cond_next();
} else {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
}
if (!SWITCH_READ_ACCEPTABLE(status)) {
break;
}
if (read_frame && args && (args->read_frame_callback)) {
if (args->read_frame_callback(session, read_frame, args->user_data) != SWITCH_STATUS_SUCCESS) {
break;
}
}
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_collect_digits_count(switch_core_session_t *session,
char *buf,
switch_size_t buflen,
switch_size_t maxdigits,
const char *terminators, char *terminator,
uint32_t first_timeout, uint32_t digit_timeout, uint32_t abs_timeout)
{
switch_size_t i = 0, x = strlen(buf);
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_status_t status = SWITCH_STATUS_FALSE;
switch_time_t started = 0, digit_started = 0;
uint32_t abs_elapsed = 0, digit_elapsed = 0;
uint32_t eff_timeout = 0;
switch_frame_t write_frame = { 0 };
unsigned char *abuf = NULL;
switch_codec_implementation_t imp = {0};
switch_codec_t codec = { 0 };
int sval = 0;
const char *var;
if ((var = switch_channel_get_variable(channel, SWITCH_SEND_SILENCE_WHEN_IDLE_VARIABLE)) && (sval = atoi(var))) {
switch_core_session_get_read_impl(session, &imp);
if (switch_core_codec_init(&codec,
"L16",
NULL,
imp.samples_per_second,
imp.microseconds_per_packet / 1000,
imp.number_of_channels,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec Error L16@%uhz %u channels %dms\n",
imp.samples_per_second, imp.number_of_channels, imp.microseconds_per_packet / 1000);
return SWITCH_STATUS_FALSE;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Codec Activated L16@%uhz %u channels %dms\n",
imp.samples_per_second, imp.number_of_channels, imp.microseconds_per_packet / 1000);
write_frame.codec = &codec;
switch_zmalloc(abuf, SWITCH_RECOMMENDED_BUFFER_SIZE);
write_frame.data = abuf;
write_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
write_frame.datalen = imp.decoded_bytes_per_packet;
write_frame.samples = write_frame.datalen / sizeof(int16_t);
}
if (terminator != NULL) {
*terminator = '\0';
}
if (!switch_strlen_zero(terminators)) {
for (i = 0; i < x; i++) {
if (strchr(terminators, buf[i]) && terminator != NULL) {
*terminator = buf[i];
buf[i] = '\0';
return SWITCH_STATUS_SUCCESS;
}
}
}
if (abs_timeout) {
started = switch_micro_time_now();
}
if (digit_timeout && first_timeout) {
eff_timeout = first_timeout;
} else if (digit_timeout && !first_timeout) {
first_timeout = eff_timeout = digit_timeout;
} else if (first_timeout) {
digit_timeout = eff_timeout = first_timeout;
}
if (eff_timeout) {
digit_started = switch_micro_time_now();
}
while (switch_channel_ready(channel)) {
switch_frame_t *read_frame;
if (abs_timeout) {
abs_elapsed = (uint32_t) ((switch_micro_time_now() - started) / 1000);
if (abs_elapsed >= abs_timeout) {
break;
}
}
if (switch_core_session_private_event_count(session)) {
switch_ivr_parse_all_events(session);
}
if (eff_timeout) {
digit_elapsed = (uint32_t) ((switch_micro_time_now() - digit_started) / 1000);
if (digit_elapsed >= eff_timeout) {
status = SWITCH_STATUS_TIMEOUT;
break;
}
}
if (switch_channel_has_dtmf(channel)) {
switch_dtmf_t dtmf = { 0 };
switch_size_t y;
if (eff_timeout) {
eff_timeout = digit_timeout;
digit_started = switch_micro_time_now();
}
for (y = 0; y <= maxdigits; y++) {
if (switch_channel_dequeue_dtmf(channel, &dtmf) != SWITCH_STATUS_SUCCESS) {
break;
}
if (!switch_strlen_zero(terminators) && strchr(terminators, dtmf.digit) && terminator != NULL) {
*terminator = dtmf.digit;
return SWITCH_STATUS_SUCCESS;
}
buf[x++] = dtmf.digit;
buf[x] = '\0';
if (x >= buflen || x >= maxdigits) {
return SWITCH_STATUS_SUCCESS;
}
}
}
if (switch_channel_test_flag(channel, CF_SERVICE)) {
switch_cond_next();
} else {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
break;
}
if (write_frame.data) {
switch_generate_sln_silence((int16_t *) write_frame.data, write_frame.samples, sval);
switch_core_session_write_frame(session, &write_frame, SWITCH_IO_FLAG_NONE, 0);
}
}
}
if (write_frame.codec) {
switch_core_codec_destroy(&codec);
}
switch_safe_free(abuf);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_hold(switch_core_session_t *session, const char *message, switch_bool_t moh)
{
switch_core_session_message_t msg = { 0 };
switch_channel_t *channel = switch_core_session_get_channel(session);
const char *stream;
const char *other_uuid;
msg.message_id = SWITCH_MESSAGE_INDICATE_HOLD;
msg.string_arg = message;
msg.from = __FILE__;
switch_channel_set_flag(channel, CF_HOLD);
switch_channel_set_flag(channel, CF_SUSPEND);
switch_core_session_receive_message(session, &msg);
if (moh && (stream = switch_channel_get_variable(channel, SWITCH_HOLD_MUSIC_VARIABLE))) {
if ((other_uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))) {
switch_ivr_broadcast(other_uuid, stream, SMF_ECHO_ALEG | SMF_LOOP);
}
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_hold_uuid(const char *uuid, const char *message, switch_bool_t moh)
{
switch_core_session_t *session;
if ((session = switch_core_session_locate(uuid))) {
switch_ivr_hold(session, message, moh);
switch_core_session_rwunlock(session);
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_unhold(switch_core_session_t *session)
{
switch_core_session_message_t msg = { 0 };
switch_channel_t *channel = switch_core_session_get_channel(session);
const char *other_uuid;
switch_core_session_t *b_session;
msg.message_id = SWITCH_MESSAGE_INDICATE_UNHOLD;
msg.from = __FILE__;
switch_channel_clear_flag(channel, CF_HOLD);
switch_channel_clear_flag(channel, CF_SUSPEND);
switch_core_session_receive_message(session, &msg);
if ((other_uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE)) && (b_session = switch_core_session_locate(other_uuid))) {
switch_channel_t *b_channel = switch_core_session_get_channel(b_session);
switch_channel_stop_broadcast(b_channel);
switch_channel_wait_for_flag(b_channel, CF_BROADCAST, SWITCH_FALSE, 5000, NULL);
switch_core_session_rwunlock(b_session);
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_unhold_uuid(const char *uuid)
{
switch_core_session_t *session;
if ((session = switch_core_session_locate(uuid))) {
switch_ivr_unhold(session);
switch_core_session_rwunlock(session);
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_media(const char *uuid, switch_media_flag_t flags)
{
const char *other_uuid = NULL;
switch_channel_t *channel, *other_channel = NULL;
switch_core_session_t *session, *other_session;
switch_core_session_message_t msg = { 0 };
switch_status_t status = SWITCH_STATUS_GENERR;
uint8_t swap = 0;
switch_frame_t *read_frame = NULL;
msg.message_id = SWITCH_MESSAGE_INDICATE_MEDIA;
msg.from = __FILE__;
if ((session = switch_core_session_locate(uuid))) {
channel = switch_core_session_get_channel(session);
if ((flags & SMF_REBRIDGE) && !switch_channel_test_flag(channel, CF_ORIGINATOR)) {
swap = 1;
}
if (switch_channel_test_flag(channel, CF_PROXY_MODE)) {
status = SWITCH_STATUS_SUCCESS;
switch_core_session_receive_message(session, &msg);
if ((flags & SMF_IMMEDIATE)) {
switch_channel_wait_for_flag(channel, CF_REQ_MEDIA, SWITCH_FALSE, 250, NULL);
switch_yield(250000);
} else {
switch_channel_wait_for_flag(channel, CF_REQ_MEDIA, SWITCH_FALSE, 10000, NULL);
switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
}
if ((flags & SMF_REBRIDGE)
&& (other_uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE))
&& (other_session = switch_core_session_locate(other_uuid))) {
other_channel = switch_core_session_get_channel(other_session);
switch_assert(other_channel != NULL);
switch_core_session_receive_message(other_session, &msg);
switch_channel_wait_for_flag(other_channel, CF_REQ_MEDIA, SWITCH_FALSE, 10000, NULL);
switch_core_session_read_frame(other_session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
switch_channel_clear_state_handler(other_channel, NULL);
switch_core_session_rwunlock(other_session);
}
if (other_channel) {
switch_channel_clear_state_handler(channel, NULL);
}
}
switch_core_session_rwunlock(session);
if (other_channel) {
if (swap) {
switch_ivr_uuid_bridge(other_uuid, uuid);
} else {
switch_ivr_uuid_bridge(uuid, other_uuid);
}
switch_channel_wait_for_flag(channel, CF_BRIDGED, SWITCH_TRUE, 1000, NULL);
switch_channel_wait_for_flag(other_channel, CF_BRIDGED, SWITCH_TRUE, 1000, NULL);
}
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_nomedia(const char *uuid, switch_media_flag_t flags)
{
const char *other_uuid;
switch_channel_t *channel, *other_channel = NULL;
switch_core_session_t *session, *other_session = NULL;
switch_core_session_message_t msg = { 0 };
switch_status_t status = SWITCH_STATUS_GENERR;
uint8_t swap = 0;
msg.message_id = SWITCH_MESSAGE_INDICATE_NOMEDIA;
msg.from = __FILE__;
if ((session = switch_core_session_locate(uuid))) {
status = SWITCH_STATUS_SUCCESS;
channel = switch_core_session_get_channel(session);
if ((flags & SMF_REBRIDGE) && !switch_channel_test_flag(channel, CF_ORIGINATOR)) {
swap = 1;
}
if ((flags & SMF_FORCE) || !switch_channel_test_flag(channel, CF_PROXY_MODE)) {
switch_core_session_receive_message(session, &msg);
if ((flags & SMF_REBRIDGE) && (other_uuid = switch_channel_get_variable(channel, SWITCH_BRIDGE_VARIABLE)) &&
(other_session = switch_core_session_locate(other_uuid))) {
other_channel = switch_core_session_get_channel(other_session);
switch_core_session_receive_message(other_session, &msg);
switch_channel_clear_state_handler(other_channel, NULL);
}
if (other_channel) {
switch_channel_clear_state_handler(channel, NULL);
if (swap) {
switch_ivr_signal_bridge(other_session, session);
} else {
switch_ivr_signal_bridge(session, other_session);
}
switch_channel_wait_for_flag(channel, CF_BRIDGED, SWITCH_TRUE, 1000, NULL);
switch_channel_wait_for_flag(other_channel, CF_BRIDGED, SWITCH_TRUE, 1000, NULL);
switch_core_session_rwunlock(other_session);
}
}
switch_core_session_rwunlock(session);
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_session_transfer(switch_core_session_t *session, const char *extension, const char *dialplan,
const char *context)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_caller_profile_t *profile, *new_profile;
switch_core_session_message_t msg = { 0 };
switch_core_session_t *other_session;
switch_channel_t *other_channel = NULL;
const char *uuid = NULL;
const char *max_forwards;
const char *forwardvar = switch_channel_get_variable(channel, SWITCH_MAX_FORWARDS_VARIABLE);
int forwardval = 70;
if (!switch_strlen_zero(forwardvar)) {
forwardval = atoi(forwardvar) - 1;
}
if (forwardval <= 0) {
switch_channel_hangup(channel, SWITCH_CAUSE_EXCHANGE_ROUTING_ERROR);
return SWITCH_STATUS_FALSE;
}
max_forwards = switch_core_session_sprintf(session, "%d", forwardval);
switch_channel_set_variable(channel, SWITCH_MAX_FORWARDS_VARIABLE, max_forwards);
switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
switch_channel_clear_flag(channel, CF_ORIGINATING);
/* clear all state handlers */
switch_channel_clear_state_handler(channel, NULL);
if ((profile = switch_channel_get_caller_profile(channel))) {
const char *var;
if (switch_strlen_zero(dialplan)) {
dialplan = profile->dialplan;
}
if (switch_strlen_zero(context)) {
context = profile->context;
}
if (switch_strlen_zero(dialplan)) {
dialplan = "XML";
}
if (switch_strlen_zero(context)) {
context = "default";
}
if (switch_strlen_zero(extension)) {
extension = "service";
}
if ((var = switch_channel_get_variable(channel, "force_transfer_dialplan"))) {
dialplan = var;
}
if ((var = switch_channel_get_variable(channel, "force_transfer_context"))) {
context = var;
}
new_profile = switch_caller_profile_clone(session, profile);
new_profile->dialplan = switch_core_strdup(new_profile->pool, dialplan);
new_profile->context = switch_core_strdup(new_profile->pool, context);
new_profile->destination_number = switch_core_strdup(new_profile->pool, extension);
new_profile->rdnis = switch_core_strdup(new_profile->pool, profile->destination_number);
switch_channel_set_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE, NULL);
/* If HANGUP_AFTER_BRIDGE is set to 'true', SWITCH_SIGNAL_BRIDGE_VARIABLE
* will not have a value, so we need to check SWITCH_BRIDGE_VARIABLE */
uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE);
if (!uuid) {
uuid = switch_channel_get_variable(channel, SWITCH_BRIDGE_VARIABLE);
}
if (uuid && (other_session = switch_core_session_locate(uuid))) {
other_channel = switch_core_session_get_channel(other_session);
switch_channel_set_variable(other_channel, SWITCH_SIGNAL_BOND_VARIABLE, NULL);
switch_core_session_rwunlock(other_session);
}
if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE))
&& (other_session = switch_core_session_locate(uuid))) {
other_channel = switch_core_session_get_channel(other_session);
switch_channel_set_variable(channel, SWITCH_SIGNAL_BRIDGE_VARIABLE, NULL);
switch_channel_set_variable(other_channel, SWITCH_SIGNAL_BRIDGE_VARIABLE, NULL);
switch_channel_set_variable(channel, SWITCH_BRIDGE_VARIABLE, NULL);
switch_channel_set_variable(other_channel, SWITCH_BRIDGE_VARIABLE, NULL);
/* If we are transferring the CALLER out of the bridge, we do not want to hang up on them */
switch_channel_set_variable(channel, SWITCH_HANGUP_AFTER_BRIDGE_VARIABLE, "false");
switch_channel_hangup(other_channel, SWITCH_CAUSE_BLIND_TRANSFER);
switch_ivr_media(uuid, SMF_NONE);
switch_core_session_rwunlock(other_session);
}
switch_channel_set_caller_profile(channel, new_profile);
switch_channel_set_flag(channel, CF_TRANSFER);
switch_channel_set_state(channel, CS_ROUTING);
msg.message_id = SWITCH_MESSAGE_INDICATE_TRANSFER;
msg.from = __FILE__;
switch_core_session_receive_message(session, &msg);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Transfer %s to %s[%s@%s]\n", switch_channel_get_name(channel), dialplan, extension,
context);
return SWITCH_STATUS_SUCCESS;
}
return SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_transfer_variable(switch_core_session_t *sessa, switch_core_session_t *sessb, char *var)
{
switch_channel_t *chana = switch_core_session_get_channel(sessa);
switch_channel_t *chanb = switch_core_session_get_channel(sessb);
const char *val = NULL;
uint8_t prefix = 0;
if (var && *var == '~') {
var++;
prefix = 1;
}
if (var && !prefix) {
if ((val = switch_channel_get_variable(chana, var))) {
switch_channel_set_variable(chanb, var, val);
}
} else {
switch_event_header_t *hi;
if ((hi = switch_channel_variable_first(chana))) {
for (; hi; hi = hi->next) {
char *vvar = hi->name;
char *vval = hi->value;
if (vvar && vval && (!prefix || (var && !strncmp((char *) vvar, var, strlen(var))))) {
switch_channel_set_variable(chanb, (char *) vvar, (char *) vval);
}
}
switch_channel_variable_last(chana);
}
}
return SWITCH_STATUS_SUCCESS;
}
/******************************************************************************************************/
struct switch_ivr_digit_stream_parser {
int pool_auto_created;
switch_memory_pool_t *pool;
switch_hash_t *hash;
switch_size_t maxlen;
switch_size_t minlen;
char terminator;
unsigned int digit_timeout_ms;
};
struct switch_ivr_digit_stream {
char *digits;
switch_time_t last_digit_time;
};
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_parser_new(switch_memory_pool_t *pool, switch_ivr_digit_stream_parser_t **parser)
{
switch_status_t status = SWITCH_STATUS_FALSE;
if (parser != NULL) {
int pool_auto_created = 0;
/* if the caller didn't provide a pool, make one */
if (pool == NULL) {
switch_core_new_memory_pool(&pool);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "created a memory pool\n");
if (pool != NULL) {
pool_auto_created = 1;
}
}
/* if we have a pool, make a parser object */
if (pool != NULL) {
*parser = (switch_ivr_digit_stream_parser_t *) switch_core_alloc(pool, sizeof(switch_ivr_digit_stream_parser_t));
}
/* if we have parser object, initialize it for the caller */
if (pool && *parser != NULL) {
memset(*parser, 0, sizeof(switch_ivr_digit_stream_parser_t));
(*parser)->pool_auto_created = pool_auto_created;
(*parser)->pool = pool;
(*parser)->digit_timeout_ms = 1000;
switch_core_hash_init(&(*parser)->hash, (*parser)->pool);
status = SWITCH_STATUS_SUCCESS;
} else {
status = SWITCH_STATUS_MEMERR;
/* if we can't create a parser object,clean up the pool if we created it */
if (pool != NULL && pool_auto_created) {
switch_core_destroy_memory_pool(&pool);
}
}
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_parser_destroy(switch_ivr_digit_stream_parser_t *parser)
{
switch_status_t status = SWITCH_STATUS_FALSE;
if (parser != NULL) {
if (parser->hash != NULL) {
switch_core_hash_destroy(&parser->hash);
parser->hash = NULL;
}
/* free the memory pool if we created it */
if (parser->pool_auto_created && parser->pool != NULL) {
status = switch_core_destroy_memory_pool(&parser->pool);
}
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_new(switch_ivr_digit_stream_parser_t *parser, switch_ivr_digit_stream_t **stream)
{
switch_status_t status = SWITCH_STATUS_FALSE;
/* if we have a parser object memory pool and a stream object pointer that is null */
if (parser != NULL && parser->pool && stream != NULL && *stream == NULL) {
*stream = (switch_ivr_digit_stream_t *) switch_core_alloc(parser->pool, sizeof(switch_ivr_digit_stream_t));
if (*stream != NULL) {
memset(*stream, 0, sizeof(switch_ivr_digit_stream_t));
status = SWITCH_STATUS_SUCCESS;
}
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_destroy(switch_ivr_digit_stream_t *stream)
{
switch_status_t status = SWITCH_STATUS_FALSE;
if (stream && stream->digits != NULL) {
free(stream->digits);
stream->digits = NULL;
status = SWITCH_STATUS_SUCCESS;
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_parser_set_event(switch_ivr_digit_stream_parser_t *parser, char *digits, void *data)
{
switch_status_t status = SWITCH_STATUS_FALSE;
if (parser != NULL && digits != NULL && *digits && parser->hash != NULL) {
status = switch_core_hash_insert(parser->hash, digits, data);
if (status == SWITCH_STATUS_SUCCESS) {
switch_size_t len = strlen(digits);
/* if we don't have a terminator, then we have to try and
* figure out when a digit set is completed, therefore we
* keep track of the min and max digit lengths
*/
if (parser->terminator == '\0') {
if (len > parser->maxlen) {
parser->maxlen = len;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "max len %u\n", (uint32_t) parser->maxlen);
}
if (parser->minlen == 0 || len < parser->minlen) {
parser->minlen = len;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "min len %u\n", (uint32_t) parser->minlen);
}
} else {
/* since we have a terminator, reset min and max */
parser->minlen = 0;
parser->maxlen = 0;
}
}
}
if (status != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "unable to add hash for '%s'\n", digits);
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_parser_del_event(switch_ivr_digit_stream_parser_t *parser, char *digits)
{
switch_status_t status = SWITCH_STATUS_FALSE;
if (parser != NULL && digits != NULL && *digits) {
status = switch_core_hash_delete(parser->hash, digits);
}
if (status != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "unable to del hash for '%s'\n", digits);
}
return status;
}
SWITCH_DECLARE(void *) switch_ivr_digit_stream_parser_feed(switch_ivr_digit_stream_parser_t *parser, switch_ivr_digit_stream_t *stream, char digit)
{
void *result = NULL;
if (parser != NULL && stream != NULL) {
switch_size_t len = (stream->digits != NULL ? strlen(stream->digits) : 0);
/* handle new digit arrivals */
if (digit != '\0') {
/* if it's not a terminator digit, add it to the collected digits */
if (digit != parser->terminator) {
/* if collected digits length >= the max length of the keys
* in the hash table, then left shift the digit string
*/
if (len > 0 && parser->maxlen != 0 && len >= parser->maxlen) {
char *src = stream->digits + 1;
char *dst = stream->digits;
while (*src) {
*(dst++) = *(src++);
}
*dst = digit;
} else {
char *tmp = realloc(stream->digits, len + 2);
switch_assert(tmp);
stream->digits = tmp;
*(stream->digits + (len++)) = digit;
*(stream->digits + len) = '\0';
stream->last_digit_time = switch_micro_time_now() / 1000;
}
}
}
/* don't allow collected digit string testing if there are varying sized keys until timeout */
if (parser->maxlen - parser->minlen > 0 && (switch_micro_time_now() / 1000) - stream->last_digit_time < parser->digit_timeout_ms) {
len = 0;
}
/* if we have digits to test */
if (len) {
result = switch_core_hash_find(parser->hash, stream->digits);
/* if we matched the digit string, or this digit is the terminator
* reset the collected digits for next digit string
*/
if (result != NULL || parser->terminator == digit) {
free(stream->digits);
stream->digits = NULL;
}
}
}
return result;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_reset(switch_ivr_digit_stream_t *stream)
{
switch_status_t status = SWITCH_STATUS_FALSE;
if (stream != NULL && stream->digits != NULL) {
free(stream->digits);
stream->digits = NULL;
stream->last_digit_time = 0;
status = SWITCH_STATUS_SUCCESS;
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_parser_set_terminator(switch_ivr_digit_stream_parser_t *parser, char digit)
{
switch_status_t status = SWITCH_STATUS_FALSE;
if (parser != NULL) {
parser->terminator = digit;
/* since we have a terminator, reset min and max */
parser->minlen = 0;
parser->maxlen = 0;
status = SWITCH_STATUS_SUCCESS;
}
return status;
}
SWITCH_DECLARE(int) switch_ivr_set_xml_profile_data(switch_xml_t xml, switch_caller_profile_t *caller_profile, int off)
{
switch_xml_t param;
if (!(param = switch_xml_add_child_d(xml, "username", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->username);
if (!(param = switch_xml_add_child_d(xml, "dialplan", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->dialplan);
if (!(param = switch_xml_add_child_d(xml, "caller_id_name", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->caller_id_name);
if (!(param = switch_xml_add_child_d(xml, "ani", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->ani);
if (!(param = switch_xml_add_child_d(xml, "aniii", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->aniii);
if (!(param = switch_xml_add_child_d(xml, "caller_id_number", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->caller_id_number);
if (!(param = switch_xml_add_child_d(xml, "network_addr", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->network_addr);
if (!(param = switch_xml_add_child_d(xml, "rdnis", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->rdnis);
if (!(param = switch_xml_add_child_d(xml, "destination_number", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->destination_number);
if (!(param = switch_xml_add_child_d(xml, "uuid", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->uuid);
if (!(param = switch_xml_add_child_d(xml, "source", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->source);
if (!(param = switch_xml_add_child_d(xml, "context", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->context);
if (!(param = switch_xml_add_child_d(xml, "chan_name", off++))) {
return -1;
}
switch_xml_set_txt(param, caller_profile->chan_name);
return off;
}
SWITCH_DECLARE(int) switch_ivr_set_xml_chan_vars(switch_xml_t xml, switch_channel_t *channel, int off)
{
switch_xml_t variable;
switch_event_header_t *hi = switch_channel_variable_first(channel);
if (!hi)
return off;
for (; hi; hi = hi->next) {
if (!switch_strlen_zero(hi->name) && !switch_strlen_zero(hi->value) && ((variable = switch_xml_add_child_d(xml, hi->name, off++)))) {
char *data;
switch_size_t dlen = strlen(hi->value) * 3;
if ((data = malloc(dlen))) {
memset(data, 0, dlen);
switch_url_encode(hi->value, data, dlen);
switch_xml_set_txt_d(variable, data);
free(data);
}
}
}
switch_channel_variable_last(channel);
return off;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_generate_xml_cdr(switch_core_session_t *session, switch_xml_t *xml_cdr)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_caller_profile_t *caller_profile;
switch_xml_t variables, cdr, x_main_cp, x_caller_profile, x_caller_extension, x_times, time_tag,
x_application, x_callflow, x_inner_extension, x_apps, x_o;
switch_app_log_t *app_log;
char tmp[512];
int cdr_off = 0, v_off = 0;
if (!(cdr = switch_xml_new("cdr"))) {
return SWITCH_STATUS_SUCCESS;
}
if (!(variables = switch_xml_add_child_d(cdr, "variables", cdr_off++))) {
goto error;
}
if ((app_log = switch_core_session_get_app_log(session))) {
int app_off = 0;
switch_app_log_t *ap;
if (!(x_apps = switch_xml_add_child_d(cdr, "app_log", cdr_off++))) {
goto error;
}
for (ap = app_log; ap; ap = ap->next) {
if (!(x_application = switch_xml_add_child_d(x_apps, "application", app_off++))) {
goto error;
}
switch_xml_set_attr_d(x_application, "app_name", ap->app);
switch_xml_set_attr_d(x_application, "app_data", ap->arg);
}
}
switch_ivr_set_xml_chan_vars(variables, channel, v_off);
caller_profile = switch_channel_get_caller_profile(channel);
while (caller_profile) {
int cf_off = 0;
int cp_off = 0;
if (!(x_callflow = switch_xml_add_child_d(cdr, "callflow", cdr_off++))) {
goto error;
}
if (!switch_strlen_zero(caller_profile->dialplan)) {
switch_xml_set_attr_d(x_callflow, "dialplan", caller_profile->dialplan);
}
if (!switch_strlen_zero(caller_profile->profile_index)) {
switch_xml_set_attr_d(x_callflow, "profile_index", caller_profile->profile_index);
}
if (caller_profile->caller_extension) {
switch_caller_application_t *ap;
int app_off = 0;
if (!(x_caller_extension = switch_xml_add_child_d(x_callflow, "extension", cf_off++))) {
goto error;
}
switch_xml_set_attr_d(x_caller_extension, "name", caller_profile->caller_extension->extension_name);
switch_xml_set_attr_d(x_caller_extension, "number", caller_profile->caller_extension->extension_number);
if (caller_profile->caller_extension->current_application) {
switch_xml_set_attr_d(x_caller_extension, "current_app", caller_profile->caller_extension->current_application->application_name);
}
for (ap = caller_profile->caller_extension->applications; ap; ap = ap->next) {
if (!(x_application = switch_xml_add_child_d(x_caller_extension, "application", app_off++))) {
goto error;
}
if (ap == caller_profile->caller_extension->current_application) {
switch_xml_set_attr_d(x_application, "last_executed", "true");
}
switch_xml_set_attr_d(x_application, "app_name", ap->application_name);
switch_xml_set_attr_d(x_application, "app_data", ap->application_data);
}
if (caller_profile->caller_extension->children) {
switch_caller_profile_t *cp = NULL;
int i_off = 0;
for (cp = caller_profile->caller_extension->children; cp; cp = cp->next) {
app_off = 0;
if (!cp->caller_extension) {
continue;
}
if (!(x_inner_extension = switch_xml_add_child_d(x_caller_extension, "sub_extensions", i_off++))) {
goto error;
}
if (!(x_caller_extension = switch_xml_add_child_d(x_inner_extension, "extension", cf_off++))) {
goto error;
}
switch_xml_set_attr_d(x_caller_extension, "name", cp->caller_extension->extension_name);
switch_xml_set_attr_d(x_caller_extension, "number", cp->caller_extension->extension_number);
switch_xml_set_attr_d(x_caller_extension, "dialplan", cp->dialplan);
if (cp->caller_extension->current_application) {
switch_xml_set_attr_d(x_caller_extension, "current_app", cp->caller_extension->current_application->application_name);
}
for (ap = cp->caller_extension->applications; ap; ap = ap->next) {
if (!(x_application = switch_xml_add_child_d(x_caller_extension, "application", app_off++))) {
goto error;
}
if (ap == cp->caller_extension->current_application) {
switch_xml_set_attr_d(x_application, "last_executed", "true");
}
switch_xml_set_attr_d(x_application, "app_name", ap->application_name);
switch_xml_set_attr_d(x_application, "app_data", ap->application_data);
}
}
}
}
if (!(x_main_cp = switch_xml_add_child_d(x_callflow, "caller_profile", cf_off++))) {
goto error;
}
cp_off += switch_ivr_set_xml_profile_data(x_main_cp, caller_profile, 0);
if (caller_profile->originator_caller_profile) {
switch_caller_profile_t *cp = NULL;
int off = 0;
if (!(x_o = switch_xml_add_child_d(x_main_cp, "originator", cp_off++))) {
goto error;
}
for (cp = caller_profile->originator_caller_profile; cp; cp = cp->next) {
if (!(x_caller_profile = switch_xml_add_child_d(x_o, "originator_caller_profile", off++))) {
goto error;
}
switch_ivr_set_xml_profile_data(x_caller_profile, cp, 0);
}
}
if (caller_profile->originatee_caller_profile) {
switch_caller_profile_t *cp = NULL;
int off = 0;
if (!(x_o = switch_xml_add_child_d(x_main_cp, "originatee", cp_off++))) {
goto error;
}
for (cp = caller_profile->originatee_caller_profile; cp; cp = cp->next) {
if (!(x_caller_profile = switch_xml_add_child_d(x_o, "originatee_caller_profile", off++))) {
goto error;
}
switch_ivr_set_xml_profile_data(x_caller_profile, cp, 0);
}
}
if (caller_profile->times) {
int t_off = 0;
if (!(x_times = switch_xml_add_child_d(x_callflow, "times", cf_off++))) {
goto error;
}
if (!(time_tag = switch_xml_add_child_d(x_times, "created_time", t_off++))) {
goto error;
}
switch_snprintf(tmp, sizeof(tmp), "%" SWITCH_TIME_T_FMT, caller_profile->times->created);
switch_xml_set_txt_d(time_tag, tmp);
if (!(time_tag = switch_xml_add_child_d(x_times, "profile_created_time", t_off++))) {
goto error;
}
switch_snprintf(tmp, sizeof(tmp), "%" SWITCH_TIME_T_FMT, caller_profile->times->profile_created);
switch_xml_set_txt_d(time_tag, tmp);
if (!(time_tag = switch_xml_add_child_d(x_times, "progress_time", t_off++))) {
goto error;
}
switch_snprintf(tmp, sizeof(tmp), "%" SWITCH_TIME_T_FMT, caller_profile->times->progress);
switch_xml_set_txt_d(time_tag, tmp);
if (!(time_tag = switch_xml_add_child_d(x_times, "progress_media_time", t_off++))) {
goto error;
}
switch_snprintf(tmp, sizeof(tmp), "%" SWITCH_TIME_T_FMT, caller_profile->times->progress_media);
switch_xml_set_txt_d(time_tag, tmp);
if (!(time_tag = switch_xml_add_child_d(x_times, "answered_time", t_off++))) {
goto error;
}
switch_snprintf(tmp, sizeof(tmp), "%" SWITCH_TIME_T_FMT, caller_profile->times->answered);
switch_xml_set_txt_d(time_tag, tmp);
if (!(time_tag = switch_xml_add_child_d(x_times, "hangup_time", t_off++))) {
goto error;
}
switch_snprintf(tmp, sizeof(tmp), "%" SWITCH_TIME_T_FMT, caller_profile->times->hungup);
switch_xml_set_txt_d(time_tag, tmp);
if (!(time_tag = switch_xml_add_child_d(x_times, "transfer_time", t_off++))) {
goto error;
}
switch_snprintf(tmp, sizeof(tmp), "%" SWITCH_TIME_T_FMT, caller_profile->times->transferred);
switch_xml_set_txt_d(time_tag, tmp);
}
caller_profile = caller_profile->next;
}
*xml_cdr = cdr;
return SWITCH_STATUS_SUCCESS;
error:
if (cdr) {
switch_xml_free(cdr);
}
return SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(void) switch_ivr_park_session(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_channel_set_state(channel, CS_PARK);
switch_channel_set_flag(channel, CF_TRANSFER);
}
SWITCH_DECLARE(void) switch_ivr_delay_echo(switch_core_session_t *session, uint32_t delay_ms)
{
stfu_instance_t *jb;
int qlen = 0;
switch_codec_t *read_codec;
stfu_frame_t *jb_frame;
switch_frame_t *read_frame, write_frame = { 0 };
switch_status_t status;
switch_channel_t *channel = switch_core_session_get_channel(session);
uint32_t interval, samples;
uint32_t ts = 0;
if (delay_ms < 1 || delay_ms > 10000) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid delay [%d] must be between 1 and 10000\n", delay_ms);
return;
}
read_codec = switch_core_session_get_read_codec(session);
interval = read_codec->implementation->microseconds_per_packet / 1000;
samples = switch_samples_per_packet(read_codec->implementation->samples_per_second, interval);
qlen = delay_ms / (interval);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Setting delay to %dms (%d frames)\n", delay_ms, qlen);
jb = stfu_n_init(qlen);
write_frame.codec = read_codec;
while (switch_channel_ready(channel)) {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
break;
}
stfu_n_eat(jb, ts, read_frame->data, read_frame->datalen);
ts += interval;
if ((jb_frame = stfu_n_read_a_frame(jb))) {
write_frame.data = jb_frame->data;
write_frame.datalen = (uint32_t) jb_frame->dlen;
status = switch_core_session_write_frame(session, &write_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
break;
}
}
}
stfu_n_destroy(&jb);
}
SWITCH_DECLARE(switch_status_t) switch_ivr_say(switch_core_session_t *session, const char *tosay, const char *module_name, const char *say_type,
const char *say_method, switch_input_args_t *args)
{
switch_say_interface_t *si;
switch_status_t status = SWITCH_STATUS_SUCCESS;
if ((si = switch_loadable_module_get_say_interface(module_name))) {
/* should go back and proto all the say mods to const.... */
status = si->say_function(session, (char *) tosay, switch_ivr_get_say_type_by_name(say_type), switch_ivr_get_say_method_by_name(say_method), args);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid SAY Interface [%s]!\n", module_name);
status = SWITCH_STATUS_FALSE;
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_set_user(switch_core_session_t *session, const char *data)
{
switch_xml_t x_domain, xml = NULL, x_user, x_param, x_params, x_group = NULL;
char *user, *mailbox, *domain;
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_status_t status = SWITCH_STATUS_FALSE;
if (switch_strlen_zero(data)) {
goto error;
}
user = switch_core_session_strdup(session, data);
if (!(domain = strchr(user, '@'))) {
goto error;
}
*domain++ = '\0';
if (switch_xml_locate_user("id", user, domain, NULL, &xml, &x_domain, &x_user, &x_group, NULL) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "can't find user [%s@%s]\n", user, domain);
goto done;
}
status = SWITCH_STATUS_SUCCESS;
if ((mailbox = (char *) switch_xml_attr(x_user, "mailbox"))) {
switch_channel_set_variable(channel, "mailbox", mailbox);
}
if ((x_params = switch_xml_child(x_domain, "variables"))) {
for (x_param = switch_xml_child(x_params, "variable"); x_param; x_param = x_param->next) {
const char *var = switch_xml_attr(x_param, "name");
const char *val = switch_xml_attr(x_param, "value");
if (var && val) {
switch_channel_set_variable(channel, var, val);
}
}
}
if (x_group && (x_params = switch_xml_child(x_group, "variables"))) {
for (x_param = switch_xml_child(x_params, "variable"); x_param; x_param = x_param->next) {
const char *var = switch_xml_attr(x_param, "name");
const char *val = switch_xml_attr(x_param, "value");
if (var && val) {
switch_channel_set_variable(channel, var, val);
}
}
}
if ((x_params = switch_xml_child(x_user, "variables"))) {
for (x_param = switch_xml_child(x_params, "variable"); x_param; x_param = x_param->next) {
const char *var = switch_xml_attr(x_param, "name");
const char *val = switch_xml_attr(x_param, "value");
if (var && val) {
switch_channel_set_variable(channel, var, val);
}
}
}
switch_channel_set_variable(channel, "user_name", user);
switch_channel_set_variable(channel, "domain_name", domain);
goto done;
error:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "No user@domain specified.\n");
done:
if (xml) {
switch_xml_free(xml);
}
return status;
}
/* For Emacs:
* Local Variables:
* mode:c
* indent-tabs-mode:t
* tab-width:4
* c-basic-offset:4
* End:
* For VIM:
* vim:set softtabstop=4 shiftwidth=4 tabstop=4:
*/
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