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asterisk/res/res_features.c

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2006, 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 Routines implementing call features as call pickup, parking and transfer
*
* \author Mark Spencer <markster@digium.com>
*/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <pthread.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <netinet/in.h>
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/options.h"
#include "asterisk/causes.h"
#include "asterisk/module.h"
#include "asterisk/translate.h"
#include "asterisk/app.h"
#include "asterisk/say.h"
#include "asterisk/features.h"
#include "asterisk/musiconhold.h"
#include "asterisk/config.h"
#include "asterisk/cli.h"
#include "asterisk/manager.h"
#include "asterisk/utils.h"
#include "asterisk/adsi.h"
#include "asterisk/monitor.h"
#ifdef __AST_DEBUG_MALLOC
static void FREE(void *ptr)
{
free(ptr);
}
#else
#define FREE free
#endif
#define DEFAULT_PARK_TIME 45000
#define DEFAULT_TRANSFER_DIGIT_TIMEOUT 3000
#define DEFAULT_FEATURE_DIGIT_TIMEOUT 500
#define DEFAULT_NOANSWER_TIMEOUT_ATTENDED_TRANSFER 15000
#define AST_MAX_WATCHERS 256
static char *parkedcall = "ParkedCall";
static int parkingtime = DEFAULT_PARK_TIME; /*!< No more than 45 seconds parked before you do something with them */
static char parking_con[AST_MAX_EXTENSION]; /*!< Context for which parking is made accessible */
static char parking_con_dial[AST_MAX_EXTENSION]; /*!< Context for dialback for parking (KLUDGE) */
static char parking_ext[AST_MAX_EXTENSION]; /*!< Extension you type to park the call */
static char pickup_ext[AST_MAX_EXTENSION]; /*!< Call pickup extension */
static int parking_start; /*!< First available extension for parking */
static int parking_stop; /*!< Last available extension for parking */
static char courtesytone[256]; /*!< Courtesy tone */
static int parkedplay = 0; /*!< Who to play the courtesy tone to */
static char xfersound[256]; /*!< Call transfer sound */
static char xferfailsound[256]; /*!< Call transfer failure sound */
static int parking_offset;
static int parkfindnext;
static int adsipark;
static int transferdigittimeout;
static int featuredigittimeout;
static int atxfernoanswertimeout;
static char *registrar = "res_features"; /*!< Registrar for operations */
/* module and CLI command definitions */
static char *synopsis = "Answer a parked call";
static char *descrip = "ParkedCall(exten):"
"Used to connect to a parked call. This application is always\n"
"registered internally and does not need to be explicitly added\n"
"into the dialplan, although you should include the 'parkedcalls'\n"
"context.\n";
static char *parkcall = "Park";
static char *synopsis2 = "Park yourself";
static char *descrip2 = "Park():"
"Used to park yourself (typically in combination with a supervised\n"
"transfer to know the parking space). This application is always\n"
"registered internally and does not need to be explicitly added\n"
"into the dialplan, although you should include the 'parkedcalls'\n"
"context.\n";
static struct ast_app *monitor_app = NULL;
static int monitor_ok = 1;
struct parkeduser {
struct ast_channel *chan;
struct timeval start;
int parkingnum;
/* Where to go if our parking time expires */
char context[AST_MAX_CONTEXT];
char exten[AST_MAX_EXTENSION];
int priority;
int parkingtime;
int notquiteyet;
char peername[1024];
unsigned char moh_trys;
struct parkeduser *next;
};
static struct parkeduser *parkinglot;
AST_MUTEX_DEFINE_STATIC(parking_lock); /*!< protects all static variables above */
static pthread_t parking_thread;
char *ast_parking_ext(void)
{
return parking_ext;
}
char *ast_pickup_ext(void)
{
return pickup_ext;
}
struct ast_bridge_thread_obj
{
struct ast_bridge_config bconfig;
struct ast_channel *chan;
struct ast_channel *peer;
};
/*! \brief store context, priority and extension */
static void set_c_e_p(struct ast_channel *chan, const char *context, const char *ext, int pri)
{
ast_copy_string(chan->context, context, sizeof(chan->context));
ast_copy_string(chan->exten, ext, sizeof(chan->exten));
chan->priority = pri;
}
static void check_goto_on_transfer(struct ast_channel *chan)
{
struct ast_channel *xferchan;
const char *val = pbx_builtin_getvar_helper(chan, "GOTO_ON_BLINDXFR");
char *x, *goto_on_transfer;
struct ast_frame *f;
if (ast_strlen_zero(val))
return;
goto_on_transfer = ast_strdupa(val);
if (!(xferchan = ast_channel_alloc(0)))
return;
for (x = goto_on_transfer; x && *x; x++) {
if (*x == '^')
*x = '|';
}
ast_string_field_set(xferchan, name, chan->name);
/* Make formats okay */
xferchan->readformat = chan->readformat;
xferchan->writeformat = chan->writeformat;
ast_channel_masquerade(xferchan, chan);
ast_parseable_goto(xferchan, goto_on_transfer);
xferchan->_state = AST_STATE_UP;
ast_clear_flag(xferchan, AST_FLAGS_ALL);
xferchan->_softhangup = 0;
if ((f = ast_read(xferchan))) {
ast_frfree(f);
f = NULL;
ast_pbx_start(xferchan);
} else {
ast_hangup(xferchan);
}
}
static struct ast_channel *ast_feature_request_and_dial(struct ast_channel *caller, const char *type, int format, void *data, int timeout, int *outstate, const char *cid_num, const char *cid_name);
static void *ast_bridge_call_thread(void *data)
{
struct ast_bridge_thread_obj *tobj = data;
tobj->chan->appl = "Transferred Call";
tobj->chan->data = tobj->peer->name;
tobj->peer->appl = "Transferred Call";
tobj->peer->data = tobj->chan->name;
if (tobj->chan->cdr) {
ast_cdr_reset(tobj->chan->cdr, NULL);
ast_cdr_setdestchan(tobj->chan->cdr, tobj->peer->name);
}
if (tobj->peer->cdr) {
ast_cdr_reset(tobj->peer->cdr, NULL);
ast_cdr_setdestchan(tobj->peer->cdr, tobj->chan->name);
}
ast_bridge_call(tobj->peer, tobj->chan, &tobj->bconfig);
ast_hangup(tobj->chan);
ast_hangup(tobj->peer);
bzero(tobj, sizeof(*tobj)); /*! \todo XXX for safety */
free(tobj);
return NULL;
}
static void ast_bridge_call_thread_launch(void *data)
{
pthread_t thread;
pthread_attr_t attr;
struct sched_param sched;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
ast_pthread_create(&thread, &attr,ast_bridge_call_thread, data);
pthread_attr_destroy(&attr);
memset(&sched, 0, sizeof(sched));
pthread_setschedparam(thread, SCHED_RR, &sched);
}
static int adsi_announce_park(struct ast_channel *chan, int parkingnum)
{
int res;
int justify[5] = {ADSI_JUST_CENT, ADSI_JUST_CENT, ADSI_JUST_CENT, ADSI_JUST_CENT};
char tmp[256];
char *message[5] = {NULL, NULL, NULL, NULL, NULL};
snprintf(tmp, sizeof(tmp), "Parked on %d", parkingnum);
message[0] = tmp;
res = adsi_load_session(chan, NULL, 0, 1);
if (res == -1)
return res;
return adsi_print(chan, message, justify, 1);
}
/*! \brief Park a call
We put the user in the parking list, then wake up the parking thread to be sure it looks
after these channels too */
int ast_park_call(struct ast_channel *chan, struct ast_channel *peer, int timeout, int *extout)
{
struct parkeduser *pu, *cur;
int i,x,parking_range;
char exten[AST_MAX_EXTENSION];
struct ast_context *con;
if (!(pu = ast_calloc(1, sizeof(*pu)))) {
return -1;
}
ast_mutex_lock(&parking_lock);
parking_range = parking_stop - parking_start+1;
for (i = 0; i < parking_range; i++) {
x = (i + parking_offset) % parking_range + parking_start;
cur = parkinglot;
while(cur) {
if (cur->parkingnum == x)
break;
cur = cur->next;
}
if (!cur)
break;
}
if (!(i < parking_range)) {
ast_log(LOG_WARNING, "No more parking spaces\n");
free(pu);
ast_mutex_unlock(&parking_lock);
return -1;
}
if (parkfindnext)
parking_offset = x - parking_start + 1;
chan->appl = "Parked Call";
chan->data = NULL;
pu->chan = chan;
/* Start music on hold */
if (chan != peer) {
ast_indicate(pu->chan, AST_CONTROL_HOLD);
ast_moh_start(pu->chan, NULL);
}
pu->start = ast_tvnow();
pu->parkingnum = x;
pu->parkingtime = (timeout > 0) ? timeout : parkingtime;
if (extout)
*extout = x;
if (peer)
ast_copy_string(pu->peername, peer->name, sizeof(pu->peername));
/* Remember what had been dialed, so that if the parking
expires, we try to come back to the same place */
ast_copy_string(pu->context, S_OR(chan->macrocontext, chan->context), sizeof(pu->context));
ast_copy_string(pu->exten, S_OR(chan->macroexten, chan->exten), sizeof(pu->exten));
pu->priority = chan->macropriority ? chan->macropriority : chan->priority;
pu->next = parkinglot;
parkinglot = pu;
/* If parking a channel directly, don't quiet yet get parking running on it */
if (peer == chan)
pu->notquiteyet = 1;
ast_mutex_unlock(&parking_lock);
/* Wake up the (presumably select()ing) thread */
pthread_kill(parking_thread, SIGURG);
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "Parked %s on %d. Will timeout back to extension [%s] %s, %d in %d seconds\n", pu->chan->name, pu->parkingnum, pu->context, pu->exten, pu->priority, (pu->parkingtime/1000));
manager_event(EVENT_FLAG_CALL, "ParkedCall",
"Exten: %d\r\n"
"Channel: %s\r\n"
"From: %s\r\n"
"Timeout: %ld\r\n"
"CallerID: %s\r\n"
"CallerIDName: %s\r\n",
pu->parkingnum, pu->chan->name, peer ? peer->name : "",
(long)pu->start.tv_sec + (long)(pu->parkingtime/1000) - (long)time(NULL),
S_OR(pu->chan->cid.cid_num, "<unknown>"),
S_OR(pu->chan->cid.cid_name, "<unknown>")
);
if (peer) {
if (adsipark && adsi_available(peer))
adsi_announce_park(peer, pu->parkingnum);
if (adsipark && adsi_available(peer))
adsi_unload_session(peer);
}
con = ast_context_find(parking_con);
if (!con) {
con = ast_context_create(NULL, parking_con, registrar);
if (!con)
ast_log(LOG_ERROR, "Parking context '%s' does not exist and unable to create\n", parking_con);
}
if (con) {
snprintf(exten, sizeof(exten), "%d", x);
ast_add_extension2(con, 1, exten, 1, NULL, NULL, parkedcall, strdup(exten), FREE, registrar);
}
if (peer)
ast_say_digits(peer, pu->parkingnum, "", peer->language);
if (pu->notquiteyet) {
/* Wake up parking thread if we're really done */
ast_moh_start(pu->chan, NULL);
pu->notquiteyet = 0;
pthread_kill(parking_thread, SIGURG);
}
return 0;
}
int ast_masq_park_call(struct ast_channel *rchan, struct ast_channel *peer, int timeout, int *extout)
{
struct ast_channel *chan;
struct ast_frame *f;
/* Make a new, fake channel that we'll use to masquerade in the real one */
if ((chan = ast_channel_alloc(0))) {
/* Let us keep track of the channel name */
ast_string_field_build(chan, name, "Parked/%s",rchan->name);
/* Make formats okay */
chan->readformat = rchan->readformat;
chan->writeformat = rchan->writeformat;
ast_channel_masquerade(chan, rchan);
/* Setup the extensions and such */
set_c_e_p(chan, rchan->context, rchan->exten, rchan->priority);
/* Make the masq execute */
f = ast_read(chan);
if (f)
ast_frfree(f);
ast_park_call(chan, peer, timeout, extout);
} else {
ast_log(LOG_WARNING, "Unable to create parked channel\n");
return -1;
}
return 0;
}
#define FEATURE_RETURN_HANGUP -1
#define FEATURE_RETURN_SUCCESSBREAK 0
#define FEATURE_RETURN_PBX_KEEPALIVE AST_PBX_KEEPALIVE
#define FEATURE_RETURN_NO_HANGUP_PEER AST_PBX_NO_HANGUP_PEER
#define FEATURE_RETURN_PASSDIGITS 21
#define FEATURE_RETURN_STOREDIGITS 22
#define FEATURE_RETURN_SUCCESS 23
#define FEATURE_SENSE_CHAN (1 << 0)
#define FEATURE_SENSE_PEER (1 << 1)
/*
* set caller and callee according to the direction
*/
static void set_peers(struct ast_channel **caller, struct ast_channel **callee,
struct ast_channel *peer, struct ast_channel *chan, int sense)
{
if (sense == FEATURE_SENSE_PEER) {
*caller = peer;
*callee = chan;
} else {
*callee = peer;
*caller = chan;
}
}
static int builtin_parkcall(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, char *code, int sense)
{
struct ast_channel *parker;
struct ast_channel *parkee;
int res=0;
struct localuser *u;
LOCAL_USER_ADD(u);
set_peers(&parker, &parkee, peer, chan, sense);
/* Setup the exten/priority to be s/1 since we don't know
where this call should return */
strcpy(chan->exten, "s");
chan->priority = 1;
if (chan->_state != AST_STATE_UP)
res = ast_answer(chan);
if (!res)
res = ast_safe_sleep(chan, 1000);
if (!res)
res = ast_park_call(parkee, parker, 0, NULL);
LOCAL_USER_REMOVE(u);
if (!res) {
if (sense == FEATURE_SENSE_CHAN)
res = AST_PBX_NO_HANGUP_PEER;
else
res = AST_PBX_KEEPALIVE;
}
return res;
}
static int builtin_automonitor(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, char *code, int sense)
{
char *caller_chan_id = NULL, *callee_chan_id = NULL, *args = NULL, *touch_filename = NULL;
int x = 0;
size_t len;
struct ast_channel *caller_chan, *callee_chan;
if (!monitor_ok) {
ast_log(LOG_ERROR,"Cannot record the call. The monitor application is disabled.\n");
return -1;
}
if (!monitor_app && !(monitor_app = pbx_findapp("Monitor"))) {
monitor_ok=0;
ast_log(LOG_ERROR,"Cannot record the call. The monitor application is disabled.\n");
return -1;
}
set_peers(&caller_chan, &callee_chan, peer, chan, sense);
if (!ast_strlen_zero(courtesytone)) {
if (ast_autoservice_start(callee_chan))
return -1;
if (ast_stream_and_wait(caller_chan, courtesytone, caller_chan->language, "")) {
ast_log(LOG_WARNING, "Failed to play courtesy tone!\n");
ast_autoservice_stop(callee_chan);
return -1;
}
if (ast_autoservice_stop(callee_chan))
return -1;
}
if (callee_chan->monitor) {
if (option_verbose > 3)
ast_verbose(VERBOSE_PREFIX_3 "User hit '%s' to stop recording call.\n", code);
ast_monitor_stop(callee_chan, 1);
return FEATURE_RETURN_SUCCESS;
}
if (caller_chan && callee_chan) {
const char *touch_format = pbx_builtin_getvar_helper(caller_chan, "TOUCH_MONITOR_FORMAT");
const char *touch_monitor = pbx_builtin_getvar_helper(caller_chan, "TOUCH_MONITOR");
if (!touch_format)
touch_format = pbx_builtin_getvar_helper(callee_chan, "TOUCH_MONITOR_FORMAT");
if (!touch_monitor)
touch_monitor = pbx_builtin_getvar_helper(callee_chan, "TOUCH_MONITOR");
if (touch_monitor) {
len = strlen(touch_monitor) + 50;
args = alloca(len);
touch_filename = alloca(len);
snprintf(touch_filename, len, "auto-%ld-%s", (long)time(NULL), touch_monitor);
snprintf(args, len, "%s|%s|m", (touch_format) ? touch_format : "wav", touch_filename);
} else {
caller_chan_id = ast_strdupa(S_OR(caller_chan->cid.cid_num, caller_chan->name));
callee_chan_id = ast_strdupa(S_OR(callee_chan->cid.cid_num, callee_chan->name));
len = strlen(caller_chan_id) + strlen(callee_chan_id) + 50;
args = alloca(len);
touch_filename = alloca(len);
snprintf(touch_filename, len, "auto-%ld-%s-%s", (long)time(NULL), caller_chan_id, callee_chan_id);
snprintf(args, len, "%s|%s|m", S_OR(touch_format, "wav"), touch_filename);
}
for( x = 0; x < strlen(args); x++) {
if (args[x] == '/')
args[x] = '-';
}
if (option_verbose > 3)
ast_verbose(VERBOSE_PREFIX_3 "User hit '%s' to record call. filename: %s\n", code, args);
pbx_exec(callee_chan, monitor_app, args);
pbx_builtin_setvar_helper(callee_chan, "TOUCH_MONITOR_OUTPUT", touch_filename);
pbx_builtin_setvar_helper(caller_chan, "TOUCH_MONITOR_OUTPUT", touch_filename);
return FEATURE_RETURN_SUCCESS;
}
ast_log(LOG_NOTICE,"Cannot record the call. One or both channels have gone away.\n");
return -1;
}
static int builtin_disconnect(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, char *code, int sense)
{
if (option_verbose > 3)
ast_verbose(VERBOSE_PREFIX_3 "User hit '%s' to disconnect call.\n", code);
return FEATURE_RETURN_HANGUP;
}
static int finishup(struct ast_channel *chan)
{
int res;
ast_moh_stop(chan);
res = ast_autoservice_stop(chan);
ast_indicate(chan, AST_CONTROL_UNHOLD);
return res;
}
static const char *real_ctx(struct ast_channel *transferer, struct ast_channel *transferee)
{
const char *s = pbx_builtin_getvar_helper(transferer, "TRANSFER_CONTEXT");
if (ast_strlen_zero(s))
s = pbx_builtin_getvar_helper(transferee, "TRANSFER_CONTEXT");
if (ast_strlen_zero(s)) /* Use the non-macro context to transfer the call XXX ? */
s = transferer->macrocontext;
if (ast_strlen_zero(s))
s = transferer->context;
return s;
}
static int builtin_blindtransfer(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, char *code, int sense)
{
struct ast_channel *transferer;
struct ast_channel *transferee;
const char *transferer_real_context;
char xferto[256];
int res;
set_peers(&transferer, &transferee, peer, chan, sense);
transferer_real_context = real_ctx(transferer, transferee);
/* Start autoservice on chan while we talk to the originator */
ast_indicate(transferee, AST_CONTROL_HOLD);
ast_autoservice_start(transferee);
ast_moh_start(transferee, NULL);
memset(xferto, 0, sizeof(xferto));
/* Transfer */
res = ast_stream_and_wait(transferer, "pbx-transfer", transferer->language, AST_DIGIT_ANY);
if (res < 0) {
finishup(transferee);
return -1; /* error ? */
}
if (res > 0) /* If they've typed a digit already, handle it */
xferto[0] = (char) res;
ast_stopstream(transferer);
res = ast_app_dtget(transferer, transferer_real_context, xferto, sizeof(xferto), 100, transferdigittimeout);
if (res < 0) { /* hangup, would be 0 for invalid and 1 for valid */
finishup(transferee);
return res;
}
if (!strcmp(xferto, ast_parking_ext())) {
res = finishup(transferee);
if (res)
res = -1;
else if (!ast_park_call(transferee, transferer, 0, NULL)) { /* success */
/* We return non-zero, but tell the PBX not to hang the channel when
the thread dies -- We have to be careful now though. We are responsible for
hanging up the channel, else it will never be hung up! */
return (transferer == peer) ? AST_PBX_KEEPALIVE : AST_PBX_NO_HANGUP_PEER;
} else {
ast_log(LOG_WARNING, "Unable to park call %s\n", transferee->name);
}
/*! \todo XXX Maybe we should have another message here instead of invalid extension XXX */
} else if (ast_exists_extension(transferee, transferer_real_context, xferto, 1, transferer->cid.cid_num)) {
pbx_builtin_setvar_helper(peer, "BLINDTRANSFER", chan->name);
pbx_builtin_setvar_helper(chan, "BLINDTRANSFER", peer->name);
res=finishup(transferee);
if (!transferee->pbx) {
/* Doh! Use our handy async_goto functions */
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Transferring %s to '%s' (context %s) priority 1\n"
,transferee->name, xferto, transferer_real_context);
if (ast_async_goto(transferee, transferer_real_context, xferto, 1))
ast_log(LOG_WARNING, "Async goto failed :-(\n");
res = -1;
} else {
/* Set the channel's new extension, since it exists, using transferer context */
set_c_e_p(transferee, transferer_real_context, xferto, 0);
}
check_goto_on_transfer(transferer);
return res;
} else {
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Unable to find extension '%s' in context '%s'\n", xferto, transferer_real_context);
}
if (ast_stream_and_wait(transferer, xferfailsound, transferer->language, AST_DIGIT_ANY) < 0 ) {
finishup(transferee);
return -1;
}
ast_stopstream(transferer);
res = finishup(transferee);
if (res) {
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "Hungup during autoservice stop on '%s'\n", transferee->name);
return res;
}
return FEATURE_RETURN_SUCCESS;
}
static int check_compat(struct ast_channel *c, struct ast_channel *newchan)
{
if (ast_channel_make_compatible(c, newchan) < 0) {
ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n",
c->name, newchan->name);
ast_hangup(newchan);
return -1;
}
return 0;
}
static int builtin_atxfer(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, char *code, int sense)
{
struct ast_channel *transferer;
struct ast_channel *transferee;
const char *transferer_real_context;
char xferto[256];
int res;
int outstate=0;
struct ast_channel *newchan;
struct ast_channel *xferchan;
struct ast_bridge_thread_obj *tobj;
struct ast_bridge_config bconfig;
struct ast_frame *f;
int l;
if (option_debug)
ast_log(LOG_DEBUG, "Executing Attended Transfer %s, %s (sense=%d) \n", chan->name, peer->name, sense);
set_peers(&transferer, &transferee, peer, chan, sense);
transferer_real_context = real_ctx(transferer, transferee);
/* Start autoservice on chan while we talk to the originator */
ast_indicate(transferee, AST_CONTROL_HOLD);
ast_autoservice_start(transferee);
ast_moh_start(transferee, NULL);
memset(xferto, 0, sizeof(xferto));
/* Transfer */
res = ast_stream_and_wait(transferer, "pbx-transfer", transferer->language, AST_DIGIT_ANY);
if (res < 0) {
finishup(transferee);
return res;
}
if (res > 0) /* If they've typed a digit already, handle it */
xferto[0] = (char) res;
/* this is specific of atxfer */
res = ast_app_dtget(transferer, transferer_real_context, xferto, sizeof(xferto), 100, transferdigittimeout);
if (res < 0) { /* hangup, would be 0 for invalid and 1 for valid */
finishup(transferee);
return res;
}
if (res == 0) {
ast_log(LOG_WARNING, "Did not read data.\n");
finishup(transferee);
if (ast_stream_and_wait(transferer, "beeperr", transferer->language, ""))
return -1;
return FEATURE_RETURN_SUCCESS;
}
/* valid extension, res == 1 */
if (!ast_exists_extension(transferer, transferer_real_context, xferto, 1, transferer->cid.cid_num)) {
ast_log(LOG_WARNING, "Extension %s does not exist in context %s\n",xferto,transferer_real_context);
finishup(transferee);
if (ast_stream_and_wait(transferer, "beeperr", transferer->language, ""))
return -1;
return FEATURE_RETURN_SUCCESS;
}
l = strlen(xferto);
snprintf(xferto + l, sizeof(xferto) - l, "@%s/n", transferer_real_context); /* append context */
newchan = ast_feature_request_and_dial(transferer, "Local", ast_best_codec(transferer->nativeformats),
xferto, atxfernoanswertimeout, &outstate, transferer->cid.cid_num, transferer->cid.cid_name);
ast_indicate(transferer, -1);
if (!newchan) {
finishup(transferee);
/* any reason besides user requested cancel and busy triggers the failed sound */
if (outstate != AST_CONTROL_UNHOLD && outstate != AST_CONTROL_BUSY &&
ast_stream_and_wait(transferer, xferfailsound, transferer->language, ""))
return -1;
return FEATURE_RETURN_SUCCESS;
}
if (check_compat(transferer, newchan))
return -1;
memset(&bconfig,0,sizeof(struct ast_bridge_config));
ast_set_flag(&(bconfig.features_caller), AST_FEATURE_DISCONNECT);
ast_set_flag(&(bconfig.features_callee), AST_FEATURE_DISCONNECT);
res = ast_bridge_call(transferer, newchan, &bconfig);
if (newchan->_softhangup || newchan->_state != AST_STATE_UP || !transferer->_softhangup) {
ast_hangup(newchan);
if (ast_stream_and_wait(transferer, xfersound, transferer->language, ""))
ast_log(LOG_WARNING, "Failed to play transfer sound!\n");
finishup(transferee);
transferer->_softhangup = 0;
return FEATURE_RETURN_SUCCESS;
}
if (check_compat(transferee, newchan))
return -1;
ast_moh_stop(transferee);
if ((ast_autoservice_stop(transferee) < 0)
|| (ast_waitfordigit(transferee, 100) < 0)
|| (ast_waitfordigit(newchan, 100) < 0)
|| ast_check_hangup(transferee)
|| ast_check_hangup(newchan)) {
ast_hangup(newchan);
return -1;
}
xferchan = ast_channel_alloc(0);
if (!xferchan) {
ast_hangup(newchan);
return -1;
}
ast_string_field_build(xferchan, name, "Transfered/%s", transferee->name);
/* Make formats okay */
xferchan->readformat = transferee->readformat;
xferchan->writeformat = transferee->writeformat;
ast_channel_masquerade(xferchan, transferee);
ast_explicit_goto(xferchan, transferee->context, transferee->exten, transferee->priority);
xferchan->_state = AST_STATE_UP;
ast_clear_flag(xferchan, AST_FLAGS_ALL);
xferchan->_softhangup = 0;
if ((f = ast_read(xferchan)))
ast_frfree(f);
newchan->_state = AST_STATE_UP;
ast_clear_flag(newchan, AST_FLAGS_ALL);
newchan->_softhangup = 0;
tobj = ast_calloc(1, sizeof(struct ast_bridge_thread_obj));
if (!tobj) {
ast_hangup(xferchan);
ast_hangup(newchan);
return -1;
}
tobj->chan = xferchan;
tobj->peer = newchan;
tobj->bconfig = *config;
if (ast_stream_and_wait(newchan, xfersound, newchan->language, ""))
ast_log(LOG_WARNING, "Failed to play transfer sound!\n");
ast_bridge_call_thread_launch(tobj);
return -1; /* XXX meaning the channel is bridged ? */
}
/* add atxfer and automon as undefined so you can only use em if you configure them */
#define FEATURES_COUNT (sizeof(builtin_features) / sizeof(builtin_features[0]))
struct ast_call_feature builtin_features[] =
{
{ AST_FEATURE_REDIRECT, "Blind Transfer", "blindxfer", "#", "#", builtin_blindtransfer, AST_FEATURE_FLAG_NEEDSDTMF },
{ AST_FEATURE_REDIRECT, "Attended Transfer", "atxfer", "", "", builtin_atxfer, AST_FEATURE_FLAG_NEEDSDTMF },
{ AST_FEATURE_AUTOMON, "One Touch Monitor", "automon", "", "", builtin_automonitor, AST_FEATURE_FLAG_NEEDSDTMF },
{ AST_FEATURE_DISCONNECT, "Disconnect Call", "disconnect", "*", "*", builtin_disconnect, AST_FEATURE_FLAG_NEEDSDTMF },
{ AST_FEATURE_PARKCALL, "Park Call", "parkcall", "", "", builtin_parkcall, AST_FEATURE_FLAG_NEEDSDTMF },
};
static AST_LIST_HEAD_STATIC(feature_list,ast_call_feature);
/*! \brief register new feature into feature_list*/
void ast_register_feature(struct ast_call_feature *feature)
{
if (!feature) {
ast_log(LOG_NOTICE,"You didn't pass a feature!\n");
return;
}
AST_LIST_LOCK(&feature_list);
AST_LIST_INSERT_HEAD(&feature_list,feature,feature_entry);
AST_LIST_UNLOCK(&feature_list);
if (option_verbose >= 2)
ast_verbose(VERBOSE_PREFIX_2 "Registered Feature '%s'\n",feature->sname);
}
/*! \brief unregister feature from feature_list */
void ast_unregister_feature(struct ast_call_feature *feature)
{
if (!feature)
return;
AST_LIST_LOCK(&feature_list);
AST_LIST_REMOVE(&feature_list,feature,feature_entry);
AST_LIST_UNLOCK(&feature_list);
free(feature);
}
static void ast_unregister_features(void)
{
struct ast_call_feature *feature;
AST_LIST_LOCK(&feature_list);
while ((feature = AST_LIST_REMOVE_HEAD(&feature_list,feature_entry)))
free(feature);
AST_LIST_UNLOCK(&feature_list);
}
/*! \brief find a feature by name */
static struct ast_call_feature *find_feature(char *name)
{
struct ast_call_feature *tmp;
AST_LIST_LOCK(&feature_list);
AST_LIST_TRAVERSE(&feature_list, tmp, feature_entry) {
if (!strcasecmp(tmp->sname, name))
break;
}
AST_LIST_UNLOCK(&feature_list);
return tmp;
}
/*! \brief exec an app by feature */
static int feature_exec_app(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, char *code, int sense)
{
struct ast_app *app;
struct ast_call_feature *feature;
int res;
AST_LIST_LOCK(&feature_list);
AST_LIST_TRAVERSE(&feature_list,feature,feature_entry) {
if (!strcasecmp(feature->exten,code))
break;
}
AST_LIST_UNLOCK(&feature_list);
if (!feature) { /* shouldn't ever happen! */
ast_log(LOG_NOTICE, "Found feature before, but at execing we've lost it??\n");
return -1;
}
app = pbx_findapp(feature->app);
if (app) {
struct ast_channel *work = ast_test_flag(feature,AST_FEATURE_FLAG_CALLEE) ? peer : chan;
res = pbx_exec(work, app, feature->app_args);
if (res == AST_PBX_KEEPALIVE)
return FEATURE_RETURN_PBX_KEEPALIVE;
else if (res == AST_PBX_NO_HANGUP_PEER)
return FEATURE_RETURN_NO_HANGUP_PEER;
else if (res)
return FEATURE_RETURN_SUCCESSBREAK;
} else {
ast_log(LOG_WARNING, "Could not find application (%s)\n", feature->app);
return -2;
}
return FEATURE_RETURN_SUCCESS; /*! \todo XXX should probably return res */
}
static void unmap_features(void)
{
int x;
for (x = 0; x < FEATURES_COUNT; x++)
strcpy(builtin_features[x].exten, builtin_features[x].default_exten);
}
static int remap_feature(const char *name, const char *value)
{
int x;
int res = -1;
for (x = 0; x < FEATURES_COUNT; x++) {
if (!strcasecmp(name, builtin_features[x].sname)) {
ast_copy_string(builtin_features[x].exten, value, sizeof(builtin_features[x].exten));
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "Remapping feature %s (%s) to sequence '%s'\n", builtin_features[x].fname, builtin_features[x].sname, builtin_features[x].exten);
res = 0;
} else if (!strcmp(value, builtin_features[x].exten))
ast_log(LOG_WARNING, "Sequence '%s' already mapped to function %s (%s) while assigning to %s\n", value, builtin_features[x].fname, builtin_features[x].sname, name);
}
return res;
}
static int ast_feature_interpret(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, char *code, int sense)
{
int x;
struct ast_flags features;
int res = FEATURE_RETURN_PASSDIGITS;
struct ast_call_feature *feature;
const char *dynamic_features=pbx_builtin_getvar_helper(chan,"DYNAMIC_FEATURES");
if (sense == FEATURE_SENSE_CHAN)
ast_copy_flags(&features, &(config->features_caller), AST_FLAGS_ALL);
else
ast_copy_flags(&features, &(config->features_callee), AST_FLAGS_ALL);
if (option_debug > 2)
ast_log(LOG_DEBUG, "Feature interpret: chan=%s, peer=%s, sense=%d, features=%d\n", chan->name, peer->name, sense, features.flags);
for (x=0; x < FEATURES_COUNT; x++) {
if ((ast_test_flag(&features, builtin_features[x].feature_mask)) &&
!ast_strlen_zero(builtin_features[x].exten)) {
/* Feature is up for consideration */
if (!strcmp(builtin_features[x].exten, code)) {
res = builtin_features[x].operation(chan, peer, config, code, sense);
break;
} else if (!strncmp(builtin_features[x].exten, code, strlen(code))) {
if (res == FEATURE_RETURN_PASSDIGITS)
res = FEATURE_RETURN_STOREDIGITS;
}
}
}
if (!ast_strlen_zero(dynamic_features)) {
char *tmp = ast_strdupa(dynamic_features);
char *tok;
while ((tok = strsep(&tmp, "#")) != NULL) {
feature = find_feature(tok);
if (feature) {
/* Feature is up for consideration */
if (!strcmp(feature->exten, code)) {
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 " Feature Found: %s exten: %s\n",feature->sname, tok);
if (sense == FEATURE_SENSE_CHAN)
res = feature->operation(chan, peer, config, code, sense);
else
res = feature->operation(peer, chan, config, code, sense);
break;
} else if (!strncmp(feature->exten, code, strlen(code))) {
res = FEATURE_RETURN_STOREDIGITS;
}
}
}
}
return res;
}
static void set_config_flags(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config)
{
int x;
ast_clear_flag(config, AST_FLAGS_ALL);
for (x = 0; x < FEATURES_COUNT; x++) {
if (ast_test_flag(builtin_features + x, AST_FEATURE_FLAG_NEEDSDTMF)) {
if (ast_test_flag(&(config->features_caller), builtin_features[x].feature_mask))
ast_set_flag(config, AST_BRIDGE_DTMF_CHANNEL_0);
if (ast_test_flag(&(config->features_callee), builtin_features[x].feature_mask))
ast_set_flag(config, AST_BRIDGE_DTMF_CHANNEL_1);
}
}
if (chan && peer && !(ast_test_flag(config, AST_BRIDGE_DTMF_CHANNEL_0) && ast_test_flag(config, AST_BRIDGE_DTMF_CHANNEL_1))) {
const char *dynamic_features = pbx_builtin_getvar_helper(chan, "DYNAMIC_FEATURES");
if (dynamic_features) {
char *tmp = ast_strdupa(dynamic_features);
char *tok;
struct ast_call_feature *feature;
/* while we have a feature */
while ((tok = strsep(&tmp, "#"))) {
if ((feature = find_feature(tok)) && ast_test_flag(feature, AST_FEATURE_FLAG_NEEDSDTMF)) {
if (ast_test_flag(feature, AST_FEATURE_FLAG_CALLER))
ast_set_flag(config, AST_BRIDGE_DTMF_CHANNEL_0);
if (ast_test_flag(feature, AST_FEATURE_FLAG_CALLEE))
ast_set_flag(config, AST_BRIDGE_DTMF_CHANNEL_1);
}
}
}
}
}
/*! \todo XXX Check - this is very similar to the code in channel.c */
static struct ast_channel *ast_feature_request_and_dial(struct ast_channel *caller, const char *type, int format, void *data, int timeout, int *outstate, const char *cid_num, const char *cid_name)
{
int state = 0;
int cause = 0;
int to;
struct ast_channel *chan;
struct ast_channel *monitor_chans[2];
struct ast_channel *active_channel;
int res = 0, ready = 0;
if ((chan = ast_request(type, format, data, &cause))) {
ast_set_callerid(chan, cid_num, cid_name, cid_num);
ast_channel_inherit_variables(caller, chan);
pbx_builtin_setvar_helper(chan, "TRANSFERERNAME", caller->name);
if (!ast_call(chan, data, timeout)) {
struct timeval started;
int x, len = 0;
char *disconnect_code = NULL, *dialed_code = NULL;
ast_indicate(caller, AST_CONTROL_RINGING);
/* support dialing of the featuremap disconnect code while performing an attended tranfer */
for (x=0; x < FEATURES_COUNT; x++) {
if (strcasecmp(builtin_features[x].sname, "disconnect"))
continue;
disconnect_code = builtin_features[x].exten;
len = strlen(disconnect_code) + 1;
dialed_code = alloca(len);
memset(dialed_code, 0, len);
break;
}
x = 0;
started = ast_tvnow();
to = timeout;
while (!ast_check_hangup(caller) && timeout && (chan->_state != AST_STATE_UP)) {
struct ast_frame *f = NULL;
monitor_chans[0] = caller;
monitor_chans[1] = chan;
active_channel = ast_waitfor_n(monitor_chans, 2, &to);
/* see if the timeout has been violated */
if(ast_tvdiff_ms(ast_tvnow(), started) > timeout) {
state = AST_CONTROL_UNHOLD;
ast_log(LOG_NOTICE, "We exceeded our AT-timeout\n");
break; /*doh! timeout*/
}
if (!active_channel)
continue;
if (chan && (chan == active_channel)){
f = ast_read(chan);
if (f == NULL) { /*doh! where'd he go?*/
state = AST_CONTROL_HANGUP;
res = 0;
break;
}
if (f->frametype == AST_FRAME_CONTROL || f->frametype == AST_FRAME_DTMF || f->frametype == AST_FRAME_TEXT) {
if (f->subclass == AST_CONTROL_RINGING) {
state = f->subclass;
if (option_verbose > 2)
ast_verbose( VERBOSE_PREFIX_3 "%s is ringing\n", chan->name);
ast_indicate(caller, AST_CONTROL_RINGING);
} else if ((f->subclass == AST_CONTROL_BUSY) || (f->subclass == AST_CONTROL_CONGESTION)) {
state = f->subclass;
if (option_verbose > 2)
ast_verbose( VERBOSE_PREFIX_3 "%s is busy\n", chan->name);
ast_indicate(caller, AST_CONTROL_BUSY);
ast_frfree(f);
f = NULL;
break;
} else if (f->subclass == AST_CONTROL_ANSWER) {
/* This is what we are hoping for */
state = f->subclass;
ast_frfree(f);
f = NULL;
ready=1;
break;
} else {
ast_log(LOG_NOTICE, "Don't know what to do about control frame: %d\n", f->subclass);
}
/* else who cares */
}
} else if (caller && (active_channel == caller)) {
f = ast_read(caller);
if (f == NULL) { /*doh! where'd he go?*/
if (caller->_softhangup && !chan->_softhangup) {
/* make this a blind transfer */
ready = 1;
break;
}
state = AST_CONTROL_HANGUP;
res = 0;
break;
}
if (f->frametype == AST_FRAME_DTMF) {
dialed_code[x++] = f->subclass;
dialed_code[x] = '\0';
if (strlen(dialed_code) == len) {
x = 0;
} else if (x && strncmp(dialed_code, disconnect_code, x)) {
x = 0;
dialed_code[x] = '\0';
}
if (*dialed_code && !strcmp(dialed_code, disconnect_code)) {
/* Caller Canceled the call */
state = AST_CONTROL_UNHOLD;
ast_frfree(f);
f = NULL;
break;
}
}
}
if (f)
ast_frfree(f);
} /* end while */
} else
ast_log(LOG_NOTICE, "Unable to call channel %s/%s\n", type, (char *)data);
} else {
ast_log(LOG_NOTICE, "Unable to request channel %s/%s\n", type, (char *)data);
switch(cause) {
case AST_CAUSE_BUSY:
state = AST_CONTROL_BUSY;
break;
case AST_CAUSE_CONGESTION:
state = AST_CONTROL_CONGESTION;
break;
}
}
ast_indicate(caller, -1);
if (chan && ready) {
if (chan->_state == AST_STATE_UP)
state = AST_CONTROL_ANSWER;
res = 0;
} else if(chan) {
res = -1;
ast_hangup(chan);
chan = NULL;
} else {
res = -1;
}
if (outstate)
*outstate = state;
if (chan && res <= 0) {
if (chan->cdr || (chan->cdr = ast_cdr_alloc())) {
char tmp[256];
ast_cdr_init(chan->cdr, chan);
snprintf(tmp, 256, "%s/%s", type, (char *)data);
ast_cdr_setapp(chan->cdr,"Dial",tmp);
ast_cdr_update(chan);
ast_cdr_start(chan->cdr);
ast_cdr_end(chan->cdr);
/* If the cause wasn't handled properly */
if (ast_cdr_disposition(chan->cdr,chan->hangupcause))
ast_cdr_failed(chan->cdr);
} else {
ast_log(LOG_WARNING, "Unable to create Call Detail Record\n");
}
}
return chan;
}
int ast_bridge_call(struct ast_channel *chan,struct ast_channel *peer,struct ast_bridge_config *config)
{
/* Copy voice back and forth between the two channels. Give the peer
the ability to transfer calls with '#<extension' syntax. */
struct ast_frame *f;
struct ast_channel *who;
char chan_featurecode[FEATURE_MAX_LEN + 1]="";
char peer_featurecode[FEATURE_MAX_LEN + 1]="";
int res;
int diff;
int hasfeatures=0;
int hadfeatures=0;
struct ast_option_header *aoh;
struct timeval start = { 0 , 0 };
struct ast_bridge_config backup_config;
memset(&backup_config, 0, sizeof(backup_config));
config->start_time = ast_tvnow();
if (chan && peer) {
pbx_builtin_setvar_helper(chan, "BRIDGEPEER", peer->name);
pbx_builtin_setvar_helper(peer, "BRIDGEPEER", chan->name);
} else if (chan)
pbx_builtin_setvar_helper(chan, "BLINDTRANSFER", NULL);
if (monitor_ok) {
const char *monitor_exec;
struct ast_channel *src = NULL;
if (!monitor_app) {
if (!(monitor_app = pbx_findapp("Monitor")))
monitor_ok=0;
}
if ((monitor_exec = pbx_builtin_getvar_helper(chan, "AUTO_MONITOR")))
src = chan;
else if ((monitor_exec = pbx_builtin_getvar_helper(peer, "AUTO_MONITOR")))
src = peer;
if (monitor_app && src) {
char *tmp = ast_strdupa(monitor_exec);
pbx_exec(src, monitor_app, tmp);
}
}
set_config_flags(chan, peer, config);
config->firstpass = 1;
/* Answer if need be */
if (ast_answer(chan))
return -1;
peer->appl = "Bridged Call";
peer->data = chan->name;
/* copy the userfield from the B-leg to A-leg if applicable */
if (chan->cdr && peer->cdr && !ast_strlen_zero(peer->cdr->userfield)) {
char tmp[256];
if (!ast_strlen_zero(chan->cdr->userfield)) {
snprintf(tmp, sizeof(tmp), "%s;%s", chan->cdr->userfield, peer->cdr->userfield);
ast_cdr_appenduserfield(chan, tmp);
} else
ast_cdr_setuserfield(chan, peer->cdr->userfield);
/* free the peer's cdr without ast_cdr_free complaining */
free(peer->cdr);
peer->cdr = NULL;
}
for (;;) {
struct ast_channel *other; /* used later */
if (config->feature_timer)
start = ast_tvnow();
res = ast_channel_bridge(chan, peer, config, &f, &who);
if (config->feature_timer) {
/* Update time limit for next pass */
diff = ast_tvdiff_ms(ast_tvnow(), start);
config->feature_timer -= diff;
if (hasfeatures) {
/* Running on backup config, meaning a feature might be being
activated, but that's no excuse to keep things going
indefinitely! */
if (backup_config.feature_timer && ((backup_config.feature_timer -= diff) <= 0)) {
if (option_debug)
ast_log(LOG_DEBUG, "Timed out, realtime this time!\n");
config->feature_timer = 0;
who = chan;
if (f)
ast_frfree(f);
f = NULL;
res = 0;
} else if (config->feature_timer <= 0) {
/* Not *really* out of time, just out of time for
digits to come in for features. */
if (option_debug)
ast_log(LOG_DEBUG, "Timed out for feature!\n");
if (!ast_strlen_zero(peer_featurecode)) {
ast_dtmf_stream(chan, peer, peer_featurecode, 0);
memset(peer_featurecode, 0, sizeof(peer_featurecode));
}
if (!ast_strlen_zero(chan_featurecode)) {
ast_dtmf_stream(peer, chan, chan_featurecode, 0);
memset(chan_featurecode, 0, sizeof(chan_featurecode));
}
if (f)
ast_frfree(f);
hasfeatures = !ast_strlen_zero(chan_featurecode) || !ast_strlen_zero(peer_featurecode);
if (!hasfeatures) {
/* Restore original (possibly time modified) bridge config */
memcpy(config, &backup_config, sizeof(struct ast_bridge_config));
memset(&backup_config, 0, sizeof(backup_config));
}
hadfeatures = hasfeatures;
/* Continue as we were */
continue;
}
} else {
if (config->feature_timer <=0) {
/* We ran out of time */
config->feature_timer = 0;
who = chan;
if (f)
ast_frfree(f);
f = NULL;
res = 0;
}
}
}
if (res < 0) {
ast_log(LOG_WARNING, "Bridge failed on channels %s and %s\n", chan->name, peer->name);
return -1;
}
if (!f || (f->frametype == AST_FRAME_CONTROL &&
(f->subclass == AST_CONTROL_HANGUP || f->subclass == AST_CONTROL_BUSY ||
f->subclass == AST_CONTROL_CONGESTION ) ) ) {
res = -1;
break;
}
/* many things should be sent to the 'other' channel */
other = (who == chan) ? peer : chan;
if (f->frametype == AST_FRAME_CONTROL) {
if (f->subclass == AST_CONTROL_RINGING)
ast_indicate(other, AST_CONTROL_RINGING);
else if (f->subclass == -1)
ast_indicate(other, -1);
else if (f->subclass == AST_CONTROL_FLASH)
ast_indicate(other, AST_CONTROL_FLASH);
else if (f->subclass == AST_CONTROL_OPTION) {
aoh = f->data;
/* Forward option Requests */
if (aoh && aoh->flag == AST_OPTION_FLAG_REQUEST)
ast_channel_setoption(other, ntohs(aoh->option), aoh->data, f->datalen - sizeof(struct ast_option_header), 0);
}
}
/* check for '*', if we find it it's time to disconnect */
if (f->frametype == AST_FRAME_DTMF) {
char *featurecode;
int sense;
hadfeatures = hasfeatures;
/* This cannot overrun because the longest feature is one shorter than our buffer */
if (who == chan) {
sense = FEATURE_SENSE_CHAN;
featurecode = chan_featurecode;
} else {
sense = FEATURE_SENSE_PEER;
featurecode = peer_featurecode;
}
/*! append the event to featurecode. we rely on the string being zero-filled, and
* not overflowing it.
* \todo XXX how do we guarantee the latter ?
*/
featurecode[strlen(featurecode)] = f->subclass;
/* Get rid of the frame before we start doing "stuff" with the channels */
ast_frfree(f);
f = NULL;
config->feature_timer = backup_config.feature_timer;
res = ast_feature_interpret(chan, peer, config, featurecode, sense);
switch(res) {
case FEATURE_RETURN_PASSDIGITS:
ast_dtmf_stream(other, who, featurecode, 0);
/* Fall through */
case FEATURE_RETURN_SUCCESS:
memset(featurecode, 0, sizeof(chan_featurecode));
break;
}
if (res >= FEATURE_RETURN_PASSDIGITS) {
res = 0;
} else
break;
hasfeatures = !ast_strlen_zero(chan_featurecode) || !ast_strlen_zero(peer_featurecode);
if (hadfeatures && !hasfeatures) {
/* Restore backup */
memcpy(config, &backup_config, sizeof(struct ast_bridge_config));
memset(&backup_config, 0, sizeof(struct ast_bridge_config));
} else if (hasfeatures) {
if (!hadfeatures) {
/* Backup configuration */
memcpy(&backup_config, config, sizeof(struct ast_bridge_config));
/* Setup temporary config options */
config->play_warning = 0;
ast_clear_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
ast_clear_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
config->warning_freq = 0;
config->warning_sound = NULL;
config->end_sound = NULL;
config->start_sound = NULL;
config->firstpass = 0;
}
config->feature_timer = featuredigittimeout;
if (option_debug)
ast_log(LOG_DEBUG, "Set time limit to %ld\n", config->feature_timer);
}
}
if (f)
ast_frfree(f);
}
return res;
}
static void post_manager_event(const char *s, int num, struct ast_channel *chan)
{
manager_event(EVENT_FLAG_CALL, s,
"Exten: %d\r\n"
"Channel: %s\r\n"
"CallerID: %s\r\n"
"CallerIDName: %s\r\n\r\n",
num, chan->name,
S_OR(chan->cid.cid_num, "<unknown>"),
S_OR(chan->cid.cid_name, "<unknown>")
);
}
/*! \brief Take care of parked calls and unpark them if needed */
static void *do_parking_thread(void *ignore)
{
fd_set rfds, efds; /* results from previous select, to be preserved across loops. */
FD_ZERO(&rfds);
FD_ZERO(&efds);
for (;;) {
struct parkeduser *pu, *pl, *pt = NULL;
int ms = -1; /* select timeout, uninitialized */
int max = -1; /* max fd, none there yet */
fd_set nrfds, nefds; /* args for the next select */
FD_ZERO(&nrfds);
FD_ZERO(&nefds);
ast_mutex_lock(&parking_lock);
pl = NULL;
pu = parkinglot;
/* navigate the list with prev-cur pointers to support removals */
while(pu) {
struct ast_channel *chan = pu->chan; /* shorthand */
int tms; /* timeout for this item */
int x; /* fd index in channel */
struct ast_context *con;
if (pu->notquiteyet) { /* Pretend this one isn't here yet */
pl = pu;
pu = pu->next;
continue;
}
tms = ast_tvdiff_ms(ast_tvnow(), pu->start);
if (tms > pu->parkingtime) {
/* Stop music on hold */
ast_moh_stop(chan);
ast_indicate(chan, AST_CONTROL_UNHOLD);
/* Get chan, exten from derived kludge */
if (pu->peername[0]) {
char *peername = ast_strdupa(pu->peername);
char *cp = strrchr(peername, '-');
if (cp)
*cp = 0;
con = ast_context_find(parking_con_dial);
if (!con) {
con = ast_context_create(NULL, parking_con_dial, registrar);
if (!con) {
ast_log(LOG_ERROR, "Parking dial context '%s' does not exist and unable to create\n", parking_con_dial);
}
}
if (con) {
char returnexten[AST_MAX_EXTENSION];
snprintf(returnexten, sizeof(returnexten), "%s||t", peername);
ast_add_extension2(con, 1, peername, 1, NULL, NULL, "Dial", strdup(returnexten), FREE, registrar);
}
set_c_e_p(chan, parking_con_dial, peername, 1);
} else {
/* They've been waiting too long, send them back to where they came. Theoretically they
should have their original extensions and such, but we copy to be on the safe side */
set_c_e_p(chan, pu->context, pu->exten, pu->priority);
}
post_manager_event("ParkedCallTimeOut", pu->parkingnum, chan);
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "Timeout for %s parked on %d. Returning to %s,%s,%d\n", chan->name, pu->parkingnum, chan->context, chan->exten, chan->priority);
/* Start up the PBX, or hang them up */
if (ast_pbx_start(chan)) {
ast_log(LOG_WARNING, "Unable to restart the PBX for user on '%s', hanging them up...\n", chan->name);
ast_hangup(chan);
}
/* And take them out of the parking lot */
if (pl)
pl->next = pu->next;
else
parkinglot = pu->next;
pt = pu;
pu = pu->next;
con = ast_context_find(parking_con);
if (con) {
char exten[AST_MAX_EXTENSION];
snprintf(exten, sizeof(exten), "%d", pt->parkingnum);
if (ast_context_remove_extension2(con, exten, 1, NULL))
ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
} else
ast_log(LOG_WARNING, "Whoa, no parking context?\n");
free(pt);
} else { /* still within parking time, process descriptors */
for (x = 0; x < AST_MAX_FDS; x++) {
struct ast_frame *f;
if (chan->fds[x] == -1 || (!FD_ISSET(chan->fds[x], &rfds) && !FD_ISSET(chan->fds[x], &efds)))
continue; /* nothing on this descriptor */
if (FD_ISSET(chan->fds[x], &efds))
ast_set_flag(chan, AST_FLAG_EXCEPTION);
else
ast_clear_flag(chan, AST_FLAG_EXCEPTION);
chan->fdno = x;
/* See if they need servicing */
f = ast_read(chan);
if (!f || (f->frametype == AST_FRAME_CONTROL && f->subclass == AST_CONTROL_HANGUP)) {
if (f)
ast_frfree(f);
post_manager_event("ParkedCallGiveUp", pu->parkingnum, chan);
/* There's a problem, hang them up*/
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "%s got tired of being parked\n", chan->name);
ast_hangup(chan);
/* And take them out of the parking lot */
if (pl)
pl->next = pu->next;
else
parkinglot = pu->next;
pt = pu;
pu = pu->next;
con = ast_context_find(parking_con);
if (con) {
char exten[AST_MAX_EXTENSION];
snprintf(exten, sizeof(exten), "%d", pt->parkingnum);
if (ast_context_remove_extension2(con, exten, 1, NULL))
ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
} else
ast_log(LOG_WARNING, "Whoa, no parking context?\n");
free(pt);
break;
} else {
/*! \todo XXX Maybe we could do something with packets, like dial "0" for operator or something XXX */
ast_frfree(f);
if (pu->moh_trys < 3 && !chan->generatordata) {
if (option_debug)
ast_log(LOG_DEBUG, "MOH on parked call stopped by outside source. Restarting.\n");
ast_moh_start(chan, NULL);
pu->moh_trys++;
}
goto std; /*! \todo XXX Ick: jumping into an else statement??? XXX */
}
} /* end for */
if (x >= AST_MAX_FDS) {
std: for (x=0; x<AST_MAX_FDS; x++) { /* mark fds for next round */
if (chan->fds[x] > -1) {
FD_SET(chan->fds[x], &nrfds);
FD_SET(chan->fds[x], &nefds);
if (chan->fds[x] > max)
max = chan->fds[x];
}
}
/* Keep track of our shortest wait */
if (tms < ms || ms < 0)
ms = tms;
pl = pu;
pu = pu->next;
}
}
} /* end while */
ast_mutex_unlock(&parking_lock);
rfds = nrfds;
efds = nefds;
{
struct timeval tv = ast_samp2tv(ms, 1000);
/* Wait for something to happen */
ast_select(max + 1, &rfds, NULL, &efds, (ms > -1) ? &tv : NULL);
}
pthread_testcancel();
}
return NULL; /* Never reached */
}
static int park_call_exec(struct ast_channel *chan, void *data)
{
/* Data is unused at the moment but could contain a parking
lot context eventually */
int res=0;
struct localuser *u;
LOCAL_USER_ADD(u);
/* Setup the exten/priority to be s/1 since we don't know
where this call should return */
strcpy(chan->exten, "s");
chan->priority = 1;
if (chan->_state != AST_STATE_UP)
res = ast_answer(chan);
if (!res)
res = ast_safe_sleep(chan, 1000);
if (!res)
res = ast_park_call(chan, chan, 0, NULL);
LOCAL_USER_REMOVE(u);
if (!res)
res = AST_PBX_KEEPALIVE;
return res;
}
static int park_exec(struct ast_channel *chan, void *data)
{
int res=0;
struct localuser *u;
struct ast_channel *peer=NULL;
struct parkeduser *pu, *pl=NULL;
struct ast_context *con;
int park;
struct ast_bridge_config config;
if (!data) {
ast_log(LOG_WARNING, "Park requires an argument (extension number)\n");
return -1;
}
LOCAL_USER_ADD(u);
park = atoi((char *)data);
ast_mutex_lock(&parking_lock);
pu = parkinglot;
while(pu) {
if (pu->parkingnum == park) {
if (pl)
pl->next = pu->next;
else
parkinglot = pu->next;
break;
}
pl = pu;
pu = pu->next;
}
ast_mutex_unlock(&parking_lock);
if (pu) {
peer = pu->chan;
con = ast_context_find(parking_con);
if (con) {
char exten[AST_MAX_EXTENSION];
snprintf(exten, sizeof(exten), "%d", pu->parkingnum);
if (ast_context_remove_extension2(con, exten, 1, NULL))
ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
} else
ast_log(LOG_WARNING, "Whoa, no parking context?\n");
manager_event(EVENT_FLAG_CALL, "UnParkedCall",
"Exten: %d\r\n"
"Channel: %s\r\n"
"From: %s\r\n"
"CallerID: %s\r\n"
"CallerIDName: %s\r\n",
pu->parkingnum, pu->chan->name, chan->name,
S_OR(pu->chan->cid.cid_num, "<unknown>"),
S_OR(pu->chan->cid.cid_name, "<unknown>")
);
free(pu);
}
/* JK02: it helps to answer the channel if not already up */
if (chan->_state != AST_STATE_UP)
ast_answer(chan);
if (peer) {
/* Play a courtesy to the source(s) configured to prefix the bridge connecting */
if (!ast_strlen_zero(courtesytone)) {
int error = 0;
ast_moh_stop(peer);
ast_indicate(peer, AST_CONTROL_UNHOLD);
if (parkedplay == 0) {
error = ast_stream_and_wait(chan, courtesytone, chan->language, "");
} else if (parkedplay == 1) {
error = ast_stream_and_wait(peer, courtesytone, chan->language, "");
} else if (parkedplay == 2) {
if (!ast_streamfile(chan, courtesytone, chan->language) &&
!ast_streamfile(peer, courtesytone, chan->language)) {
/*! \todo XXX we would like to wait on both! */
res = ast_waitstream(chan, "");
if (res >= 0)
res = ast_waitstream(peer, "");
if (res < 0)
error = 1;
}
}
if (error) {
ast_log(LOG_WARNING, "Failed to play courtesy tone!\n");
ast_hangup(peer);
return -1;
}
} else {
ast_moh_stop(peer);
ast_indicate(peer, AST_CONTROL_UNHOLD);
}
res = ast_channel_make_compatible(chan, peer);
if (res < 0) {
ast_log(LOG_WARNING, "Could not make channels %s and %s compatible for bridge\n", chan->name, peer->name);
ast_hangup(peer);
return -1;
}
/* This runs sorta backwards, since we give the incoming channel control, as if it
were the person called. */
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Channel %s connected to parked call %d\n", chan->name, park);
memset(&config, 0, sizeof(struct ast_bridge_config));
ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
config.timelimit = 0;
config.play_warning = 0;
config.warning_freq = 0;
config.warning_sound=NULL;
res = ast_bridge_call(chan, peer, &config);
/* Simulate the PBX hanging up */
if (res != AST_PBX_NO_HANGUP_PEER)
ast_hangup(peer);
return res;
} else {
/*! \todo XXX Play a message XXX */
if (ast_stream_and_wait(chan, "pbx-invalidpark", chan->language, ""))
ast_log(LOG_WARNING, "ast_streamfile of %s failed on %s\n", "pbx-invalidpark", chan->name);
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Channel %s tried to talk to nonexistent parked call %d\n", chan->name, park);
res = -1;
}
LOCAL_USER_REMOVE(u);
return res;
}
static int handle_showfeatures(int fd, int argc, char *argv[])
{
int i;
int fcount;
struct ast_call_feature *feature;
char format[] = "%-25s %-7s %-7s\n";
ast_cli(fd, format, "Builtin Feature", "Default", "Current");
ast_cli(fd, format, "---------------", "-------", "-------");
ast_cli(fd, format, "Pickup", "*8", ast_pickup_ext()); /* default hardcoded above, so we'll hardcode it here */
fcount = sizeof(builtin_features) / sizeof(builtin_features[0]);
for (i = 0; i < fcount; i++)
{
ast_cli(fd, format, builtin_features[i].fname, builtin_features[i].default_exten, builtin_features[i].exten);
}
ast_cli(fd, "\n");
ast_cli(fd, format, "Dynamic Feature", "Default", "Current");
ast_cli(fd, format, "---------------", "-------", "-------");
if (AST_LIST_EMPTY(&feature_list)) {
ast_cli(fd, "(none)\n");
}
else {
AST_LIST_LOCK(&feature_list);
AST_LIST_TRAVERSE(&feature_list, feature, feature_entry) {
ast_cli(fd, format, feature->sname, "no def", feature->exten);
}
AST_LIST_UNLOCK(&feature_list);
}
ast_cli(fd, "\nCall parking\n");
ast_cli(fd, "------------\n");
ast_cli(fd,"%-20s: %s\n", "Parking extension", parking_ext);
ast_cli(fd,"%-20s: %s\n", "Parking context", parking_con);
ast_cli(fd,"%-20s: %d-%d\n", "Parked call extensions", parking_start, parking_stop);
ast_cli(fd,"\n");
return RESULT_SUCCESS;
}
static char showfeatures_help[] =
"Usage: show features\n"
" Lists currently configured features.\n";
static struct ast_cli_entry showfeatures =
{ { "show", "features", NULL }, handle_showfeatures, "Lists configured features", showfeatures_help };
static int handle_parkedcalls(int fd, int argc, char *argv[])
{
struct parkeduser *cur;
int numparked = 0;
ast_cli(fd, "%4s %25s (%-15s %-12s %-4s) %-6s \n", "Num", "Channel"
, "Context", "Extension", "Pri", "Timeout");
ast_mutex_lock(&parking_lock);
for (cur = parkinglot; cur; cur = cur->next) {
ast_cli(fd, "%4d %25s (%-15s %-12s %-4d) %6lds\n"
,cur->parkingnum, cur->chan->name, cur->context, cur->exten
,cur->priority, cur->start.tv_sec + (cur->parkingtime/1000) - time(NULL));
numparked++;
}
ast_mutex_unlock(&parking_lock);
ast_cli(fd, "%d parked call%s.\n", numparked, (numparked != 1) ? "s" : "");
return RESULT_SUCCESS;
}
static char showparked_help[] =
"Usage: show parkedcalls\n"
" Lists currently parked calls.\n";
static struct ast_cli_entry showparked =
{ { "show", "parkedcalls", NULL }, handle_parkedcalls, "Lists parked calls", showparked_help };
/*! \brief Dump lot status */
static int manager_parking_status( struct mansession *s, struct message *m )
{
struct parkeduser *cur;
char *id = astman_get_header(m,"ActionID");
char idText[256] = "";
if (!ast_strlen_zero(id))
snprintf(idText,256,"ActionID: %s\r\n",id);
astman_send_ack(s, m, "Parked calls will follow");
ast_mutex_lock(&parking_lock);
for (cur=parkinglot; cur; cur = cur->next) {
astman_append(s, "Event: ParkedCall\r\n"
"Exten: %d\r\n"
"Channel: %s\r\n"
"From: %s\r\n"
"Timeout: %ld\r\n"
"CallerID: %s\r\n"
"CallerIDName: %s\r\n"
"%s"
"\r\n",
cur->parkingnum, cur->chan->name, cur->peername,
(long)cur->start.tv_sec + (long)(cur->parkingtime/1000) - (long)time(NULL),
S_OR(cur->chan->cid.cid_num, ""), /* XXX in other places it is <unknown> */
S_OR(cur->chan->cid.cid_name, ""),
idText);
}
astman_append(s,
"Event: ParkedCallsComplete\r\n"
"%s"
"\r\n",idText);
ast_mutex_unlock(&parking_lock);
return RESULT_SUCCESS;
}
static char mandescr_park[] =
"Description: Park a channel.\n"
"Variables: (Names marked with * are required)\n"
" *Channel: Channel name to park\n"
" *Channel2: Channel to announce park info to (and return to if timeout)\n"
" Timeout: Number of milliseconds to wait before callback.\n";
static int manager_park(struct mansession *s, struct message *m)
{
char *channel = astman_get_header(m, "Channel");
char *channel2 = astman_get_header(m, "Channel2");
char *timeout = astman_get_header(m, "Timeout");
char buf[BUFSIZ];
int to = 0;
int res = 0;
int parkExt = 0;
struct ast_channel *ch1, *ch2;
if (ast_strlen_zero(channel)) {
astman_send_error(s, m, "Channel not specified");
return 0;
}
if (ast_strlen_zero(channel2)) {
astman_send_error(s, m, "Channel2 not specified");
return 0;
}
ch1 = ast_get_channel_by_name_locked(channel);
if (!ch1) {
snprintf(buf, sizeof(buf), "Channel does not exist: %s", channel);
astman_send_error(s, m, buf);
return 0;
}
ch2 = ast_get_channel_by_name_locked(channel2);
if (!ch2) {
snprintf(buf, sizeof(buf), "Channel does not exist: %s", channel2);
astman_send_error(s, m, buf);
ast_channel_unlock(ch1);
return 0;
}
if (!ast_strlen_zero(timeout)) {
sscanf(timeout, "%d", &to);
}
res = ast_masq_park_call(ch1, ch2, to, &parkExt);
if (!res) {
ast_softhangup(ch2, AST_SOFTHANGUP_EXPLICIT);
astman_send_ack(s, m, "Park successful");
} else {
astman_send_error(s, m, "Park failure");
}
ast_channel_unlock(ch1);
ast_channel_unlock(ch2);
return 0;
}
int ast_pickup_call(struct ast_channel *chan)
{
struct ast_channel *cur = NULL;
int res = -1;
while ( (cur = ast_channel_walk_locked(cur)) != NULL) {
if (!cur->pbx &&
(cur != chan) &&
(chan->pickupgroup & cur->callgroup) &&
((cur->_state == AST_STATE_RINGING) ||
(cur->_state == AST_STATE_RING))) {
break;
}
ast_channel_unlock(cur);
}
if (cur) {
if (option_debug)
ast_log(LOG_DEBUG, "Call pickup on chan '%s' by '%s'\n",cur->name, chan->name);
res = ast_answer(chan);
if (res)
ast_log(LOG_WARNING, "Unable to answer '%s'\n", chan->name);
res = ast_queue_control(chan, AST_CONTROL_ANSWER);
if (res)
ast_log(LOG_WARNING, "Unable to queue answer on '%s'\n", chan->name);
res = ast_channel_masquerade(cur, chan);
if (res)
ast_log(LOG_WARNING, "Unable to masquerade '%s' into '%s'\n", chan->name, cur->name); /* Done */
ast_channel_unlock(cur);
} else {
if (option_debug)
ast_log(LOG_DEBUG, "No call pickup possible...\n");
}
return res;
}
static int load_config(void)
{
int start = 0, end = 0;
struct ast_context *con = NULL;
struct ast_config *cfg = NULL;
struct ast_variable *var = NULL;
char old_parking_ext[AST_MAX_EXTENSION];
char old_parking_con[AST_MAX_EXTENSION] = "";
if (!ast_strlen_zero(parking_con)) {
strcpy(old_parking_ext, parking_ext);
strcpy(old_parking_con, parking_con);
}
/* Reset to defaults */
strcpy(parking_con, "parkedcalls");
strcpy(parking_con_dial, "park-dial");
strcpy(parking_ext, "700");
strcpy(pickup_ext, "*8");
courtesytone[0] = '\0';
strcpy(xfersound, "beep");
strcpy(xferfailsound, "pbx-invalid");
parking_start = 701;
parking_stop = 750;
parkfindnext = 0;
adsipark = 0;
transferdigittimeout = DEFAULT_TRANSFER_DIGIT_TIMEOUT;
featuredigittimeout = DEFAULT_FEATURE_DIGIT_TIMEOUT;
atxfernoanswertimeout = DEFAULT_NOANSWER_TIMEOUT_ATTENDED_TRANSFER;
cfg = ast_config_load("features.conf");
if (cfg) {
for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
if (!strcasecmp(var->name, "parkext")) {
ast_copy_string(parking_ext, var->value, sizeof(parking_ext));
} else if (!strcasecmp(var->name, "context")) {
ast_copy_string(parking_con, var->value, sizeof(parking_con));
} else if (!strcasecmp(var->name, "parkingtime")) {
if ((sscanf(var->value, "%d", &parkingtime) != 1) || (parkingtime < 1)) {
ast_log(LOG_WARNING, "%s is not a valid parkingtime\n", var->value);
parkingtime = DEFAULT_PARK_TIME;
} else
parkingtime = parkingtime * 1000;
} else if (!strcasecmp(var->name, "parkpos")) {
if (sscanf(var->value, "%d-%d", &start, &end) != 2) {
ast_log(LOG_WARNING, "Format for parking positions is a-b, where a and b are numbers at line %d of parking.conf\n", var->lineno);
} else {
parking_start = start;
parking_stop = end;
}
} else if (!strcasecmp(var->name, "findslot")) {
parkfindnext = (!strcasecmp(var->value, "next"));
} else if (!strcasecmp(var->name, "adsipark")) {
adsipark = ast_true(var->value);
} else if (!strcasecmp(var->name, "transferdigittimeout")) {
if ((sscanf(var->value, "%d", &transferdigittimeout) != 1) || (transferdigittimeout < 1)) {
ast_log(LOG_WARNING, "%s is not a valid transferdigittimeout\n", var->value);
transferdigittimeout = DEFAULT_TRANSFER_DIGIT_TIMEOUT;
} else
transferdigittimeout = transferdigittimeout * 1000;
} else if (!strcasecmp(var->name, "featuredigittimeout")) {
if ((sscanf(var->value, "%d", &featuredigittimeout) != 1) || (featuredigittimeout < 1)) {
ast_log(LOG_WARNING, "%s is not a valid featuredigittimeout\n", var->value);
featuredigittimeout = DEFAULT_FEATURE_DIGIT_TIMEOUT;
}
} else if (!strcasecmp(var->name, "atxfernoanswertimeout")) {
if ((sscanf(var->value, "%d", &atxfernoanswertimeout) != 1) || (atxfernoanswertimeout < 1)) {
ast_log(LOG_WARNING, "%s is not a valid atxfernoanswertimeout\n", var->value);
atxfernoanswertimeout = DEFAULT_NOANSWER_TIMEOUT_ATTENDED_TRANSFER;
} else
atxfernoanswertimeout = atxfernoanswertimeout * 1000;
} else if (!strcasecmp(var->name, "courtesytone")) {
ast_copy_string(courtesytone, var->value, sizeof(courtesytone));
} else if (!strcasecmp(var->name, "parkedplay")) {
if (!strcasecmp(var->value, "both"))
parkedplay = 2;
else if (!strcasecmp(var->value, "parked"))
parkedplay = 1;
else
parkedplay = 0;
} else if (!strcasecmp(var->name, "xfersound")) {
ast_copy_string(xfersound, var->value, sizeof(xfersound));
} else if (!strcasecmp(var->name, "xferfailsound")) {
ast_copy_string(xferfailsound, var->value, sizeof(xferfailsound));
} else if (!strcasecmp(var->name, "pickupexten")) {
ast_copy_string(pickup_ext, var->value, sizeof(pickup_ext));
}
}
unmap_features();
for (var = ast_variable_browse(cfg, "featuremap"); var; var = var->next) {
if (remap_feature(var->name, var->value))
ast_log(LOG_NOTICE, "Unknown feature '%s'\n", var->name);
}
/* Map a key combination to an application*/
ast_unregister_features();
for (var = ast_variable_browse(cfg, "applicationmap"); var; var = var->next) {
char *tmp_val = ast_strdup(var->value);
char *exten, *party=NULL, *app=NULL, *app_args=NULL;
if (!tmp_val) {
/*! \todo XXX No memory. We should probably break, but at least we do not
* insist on this entry or we could be stuck in an
* infinite loop.
*/
continue;
}
/* strsep() sets the argument to NULL if match not found, and it
* is safe to use it with a NULL argument, so we don't check
* between calls.
*/
exten = strsep(&tmp_val,",");
party = strsep(&tmp_val,",");
app = strsep(&tmp_val,",");
app_args = strsep(&tmp_val,",");
/*! \todo XXX var_name or app_args ? */
if (ast_strlen_zero(app) || ast_strlen_zero(exten) || ast_strlen_zero(party) || ast_strlen_zero(var->name)) {
ast_log(LOG_NOTICE, "Please check the feature Mapping Syntax, either extension, name, or app aren't provided %s %s %s %s\n",app,exten,party,var->name);
free(tmp_val);
continue;
}
{
struct ast_call_feature *feature;
int mallocd = 0;
if (!(feature = find_feature(var->name))) {
mallocd = 1;
if (!(feature = ast_calloc(1, sizeof(*feature)))) {
free(tmp_val);
continue;
}
}
ast_copy_string(feature->sname,var->name,FEATURE_SNAME_LEN);
ast_copy_string(feature->app,app,FEATURE_APP_LEN);
ast_copy_string(feature->exten, exten,FEATURE_EXTEN_LEN);
free(tmp_val);
if (app_args)
ast_copy_string(feature->app_args,app_args,FEATURE_APP_ARGS_LEN);
ast_copy_string(feature->exten, exten,sizeof(feature->exten));
feature->operation=feature_exec_app;
ast_set_flag(feature,AST_FEATURE_FLAG_NEEDSDTMF);
if (!strcasecmp(party,"caller"))
ast_set_flag(feature,AST_FEATURE_FLAG_CALLER);
else if (!strcasecmp(party, "callee"))
ast_set_flag(feature,AST_FEATURE_FLAG_CALLEE);
else {
ast_log(LOG_NOTICE, "Invalid party specification for feature '%s', must be caller, or callee\n", var->name);
continue;
}
ast_register_feature(feature);
/* XXX do we need to free it if mallocd ? */
if (option_verbose >=1)
ast_verbose(VERBOSE_PREFIX_2 "Mapping Feature '%s' to app '%s' with code '%s'\n", var->name, app, exten);
}
}
}
ast_config_destroy(cfg);
/* Remove the old parking extension */
if (!ast_strlen_zero(old_parking_con) && (con = ast_context_find(old_parking_con))) {
ast_context_remove_extension2(con, old_parking_ext, 1, registrar);
if (option_debug)
ast_log(LOG_DEBUG, "Removed old parking extension %s@%s\n", old_parking_ext, old_parking_con);
}
if (!(con = ast_context_find(parking_con)) && !(con = ast_context_create(NULL, parking_con, registrar))) {
ast_log(LOG_ERROR, "Parking context '%s' does not exist and unable to create\n", parking_con);
return -1;
}
return ast_add_extension2(con, 1, ast_parking_ext(), 1, NULL, NULL, parkcall, strdup(""), FREE, registrar);
}
static int reload(void *mod)
{
return load_config();
}
static int load_module(void *mod)
{
int res;
__mod_desc = mod;
memset(parking_ext, 0, sizeof(parking_ext));
memset(parking_con, 0, sizeof(parking_con));
if ((res = load_config()))
return res;
ast_cli_register(&showparked);
ast_cli_register(&showfeatures);
ast_pthread_create(&parking_thread, NULL, do_parking_thread, NULL);
res = ast_register_application(parkedcall, park_exec, synopsis, descrip);
if (!res)
res = ast_register_application(parkcall, park_call_exec, synopsis2, descrip2);
if (!res) {
ast_manager_register("ParkedCalls", 0, manager_parking_status, "List parked calls" );
ast_manager_register2("Park", EVENT_FLAG_CALL, manager_park,
"Park a channel", mandescr_park);
}
return res;
}
static int unload_module(void *mod)
{
STANDARD_HANGUP_LOCALUSERS;
ast_manager_unregister("ParkedCalls");
ast_manager_unregister("Park");
ast_cli_unregister(&showfeatures);
ast_cli_unregister(&showparked);
ast_unregister_application(parkcall);
return ast_unregister_application(parkedcall);
}
static const char *description(void)
{
return "Call Features Resource";
}
static const char *key(void)
{
return ASTERISK_GPL_KEY;
}
STD_MOD(MOD_0 | NO_UNLOAD, reload, NULL, NULL);
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