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asterisk/apps/app_followme.c

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/*
* Asterisk -- A telephony toolkit for Linux.
*
* A full-featured Find-Me/Follow-Me Application
*
* Copyright (C) 2005-2006, BJ Weschke All Rights Reserved.
*
* BJ Weschke <bweschke@btwtech.com>
*
* This code is released by the author with no restrictions on usage.
*
* 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.
*
*/
/*! \file
*
* \brief Find-Me Follow-Me application
*
* \author BJ Weschke <bweschke@btwtech.com>
*
* \arg See \ref Config_followme
*
* \ingroup applications
*/
/*** MODULEINFO
<depend>chan_local</depend>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <signal.h>
#include "asterisk/paths.h" /* use ast_config_AST_SPOOL_DIR */
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/translate.h"
#include "asterisk/say.h"
#include "asterisk/features.h"
#include "asterisk/musiconhold.h"
#include "asterisk/cli.h"
#include "asterisk/manager.h"
#include "asterisk/config.h"
#include "asterisk/utils.h"
#include "asterisk/causes.h"
#include "asterisk/astdb.h"
#include "asterisk/dsp.h"
#include "asterisk/app.h"
/*** DOCUMENTATION
<application name="FollowMe" language="en_US">
<synopsis>
Find-Me/Follow-Me application.
</synopsis>
<syntax>
<parameter name="followmeid" required="true" />
<parameter name="options">
<optionlist>
<option name="s">
<para>Playback the incoming status message prior to starting
the follow-me step(s)</para>
</option>
<option name="a">
<para>Record the caller's name so it can be announced to the
callee on each step.</para>
</option>
<option name="n">
<para>Playback the unreachable status message if we've run out
of steps to reach the or the callee has elected not to be reachable.</para>
</option>
<option name="N">
<para>Don't answer the incoming call until we're ready to
connect the caller or give up. This will disable all the other
options while implicitly turning on the 'd' option.</para>
</option>
<option name="d">
<para>Disable the 'Please hold while we try to connect your call' announcement.</para>
</option>
<option name="l">
<para>Disable local call optimization so that applications with
audio hooks between the local bridge don't get dropped when the
calls get joined directly.</para>
</option>
</optionlist>
</parameter>
</syntax>
<description>
<para>This application performs Find-Me/Follow-Me functionality for the caller
as defined in the profile matching the <replaceable>followmeid</replaceable> parameter in
<filename>followme.conf</filename>. If the specified <replaceable>followmeid</replaceable>
profile doesn't exist in <filename>followme.conf</filename>, execution will be returned
to the dialplan and call execution will continue at the next priority.</para>
<para>Returns -1 on hangup.</para>
</description>
</application>
***/
static char *app = "FollowMe";
/*! \brief Number structure */
struct number {
char number[512]; /*!< Phone Number(s) and/or Extension(s) */
long timeout; /*!< Dial Timeout, if used. */
int order; /*!< The order to dial in */
AST_LIST_ENTRY(number) entry; /*!< Next Number record */
};
/*! \brief Data structure for followme scripts */
struct call_followme {
ast_mutex_t lock;
char name[AST_MAX_EXTENSION]; /*!< Name - FollowMeID */
char moh[AST_MAX_CONTEXT]; /*!< Music On Hold Class to be used */
char context[AST_MAX_CONTEXT]; /*!< Context to dial from */
unsigned int active; /*!< Profile is active (1), or disabled (0). */
int realtime; /*!< Cached from realtime */
char takecall[20]; /*!< Digit mapping to take a call */
char nextindp[20]; /*!< Digit mapping to decline a call */
char callfromprompt[PATH_MAX]; /*!< Sound prompt name and path */
char norecordingprompt[PATH_MAX]; /*!< Sound prompt name and path */
char optionsprompt[PATH_MAX]; /*!< Sound prompt name and path */
char plsholdprompt[PATH_MAX]; /*!< Sound prompt name and path */
char statusprompt[PATH_MAX]; /*!< Sound prompt name and path */
char sorryprompt[PATH_MAX]; /*!< Sound prompt name and path */
AST_LIST_HEAD_NOLOCK(numbers, number) numbers; /*!< Head of the list of follow-me numbers */
AST_LIST_HEAD_NOLOCK(blnumbers, number) blnumbers; /*!< Head of the list of black-listed numbers */
AST_LIST_HEAD_NOLOCK(wlnumbers, number) wlnumbers; /*!< Head of the list of white-listed numbers */
AST_LIST_ENTRY(call_followme) entry; /*!< Next Follow-Me record */
};
struct fm_args {
struct ast_channel *chan;
char *mohclass;
AST_LIST_HEAD_NOLOCK(cnumbers, number) cnumbers;
int status;
char context[AST_MAX_CONTEXT];
char namerecloc[AST_MAX_CONTEXT];
struct ast_channel *outbound;
char takecall[20]; /*!< Digit mapping to take a call */
char nextindp[20]; /*!< Digit mapping to decline a call */
char callfromprompt[PATH_MAX]; /*!< Sound prompt name and path */
char norecordingprompt[PATH_MAX]; /*!< Sound prompt name and path */
char optionsprompt[PATH_MAX]; /*!< Sound prompt name and path */
char plsholdprompt[PATH_MAX]; /*!< Sound prompt name and path */
char statusprompt[PATH_MAX]; /*!< Sound prompt name and path */
char sorryprompt[PATH_MAX]; /*!< Sound prompt name and path */
struct ast_flags followmeflags;
};
struct findme_user {
struct ast_channel *ochan;
int state;
char dialarg[256];
char yn[10];
int ynidx;
long digts;
int cleared;
AST_LIST_ENTRY(findme_user) entry;
};
enum {
FOLLOWMEFLAG_STATUSMSG = (1 << 0),
FOLLOWMEFLAG_RECORDNAME = (1 << 1),
FOLLOWMEFLAG_UNREACHABLEMSG = (1 << 2),
FOLLOWMEFLAG_DISABLEHOLDPROMPT = (1 << 3),
FOLLOWMEFLAG_NOANSWER = (1 << 4),
FOLLOWMEFLAG_DISABLEOPTIMIZATION = (1 << 5),
};
AST_APP_OPTIONS(followme_opts, {
AST_APP_OPTION('s', FOLLOWMEFLAG_STATUSMSG ),
AST_APP_OPTION('a', FOLLOWMEFLAG_RECORDNAME ),
AST_APP_OPTION('n', FOLLOWMEFLAG_UNREACHABLEMSG ),
AST_APP_OPTION('d', FOLLOWMEFLAG_DISABLEHOLDPROMPT ),
AST_APP_OPTION('N', FOLLOWMEFLAG_NOANSWER ),
AST_APP_OPTION('l', FOLLOWMEFLAG_DISABLEOPTIMIZATION ),
});
static int ynlongest = 0;
static const char *featuredigittostr;
static int featuredigittimeout = 5000; /*!< Feature Digit Timeout */
static const char *defaultmoh = "default"; /*!< Default Music-On-Hold Class */
static char takecall[20] = "1", nextindp[20] = "2";
static char callfromprompt[PATH_MAX] = "followme/call-from";
static char norecordingprompt[PATH_MAX] = "followme/no-recording";
static char optionsprompt[PATH_MAX] = "followme/options";
static char plsholdprompt[PATH_MAX] = "followme/pls-hold-while-try";
static char statusprompt[PATH_MAX] = "followme/status";
static char sorryprompt[PATH_MAX] = "followme/sorry";
static AST_RWLIST_HEAD_STATIC(followmes, call_followme);
AST_LIST_HEAD_NOLOCK(findme_user_listptr, findme_user);
static void free_numbers(struct call_followme *f)
{
/* Free numbers attached to the profile */
struct number *prev;
while ((prev = AST_LIST_REMOVE_HEAD(&f->numbers, entry)))
/* Free the number */
ast_free(prev);
AST_LIST_HEAD_INIT_NOLOCK(&f->numbers);
while ((prev = AST_LIST_REMOVE_HEAD(&f->blnumbers, entry)))
/* Free the blacklisted number */
ast_free(prev);
AST_LIST_HEAD_INIT_NOLOCK(&f->blnumbers);
while ((prev = AST_LIST_REMOVE_HEAD(&f->wlnumbers, entry)))
/* Free the whitelisted number */
ast_free(prev);
AST_LIST_HEAD_INIT_NOLOCK(&f->wlnumbers);
}
/*! \brief Allocate and initialize followme profile */
static struct call_followme *alloc_profile(const char *fmname)
{
struct call_followme *f;
if (!(f = ast_calloc(1, sizeof(*f))))
return NULL;
ast_mutex_init(&f->lock);
ast_copy_string(f->name, fmname, sizeof(f->name));
f->moh[0] = '\0';
f->context[0] = '\0';
ast_copy_string(f->takecall, takecall, sizeof(f->takecall));
ast_copy_string(f->nextindp, nextindp, sizeof(f->nextindp));
ast_copy_string(f->callfromprompt, callfromprompt, sizeof(f->callfromprompt));
ast_copy_string(f->norecordingprompt, norecordingprompt, sizeof(f->norecordingprompt));
ast_copy_string(f->optionsprompt, optionsprompt, sizeof(f->optionsprompt));
ast_copy_string(f->plsholdprompt, plsholdprompt, sizeof(f->plsholdprompt));
ast_copy_string(f->statusprompt, statusprompt, sizeof(f->statusprompt));
ast_copy_string(f->sorryprompt, sorryprompt, sizeof(f->sorryprompt));
AST_LIST_HEAD_INIT_NOLOCK(&f->numbers);
AST_LIST_HEAD_INIT_NOLOCK(&f->blnumbers);
AST_LIST_HEAD_INIT_NOLOCK(&f->wlnumbers);
return f;
}
static void init_profile(struct call_followme *f)
{
f->active = 1;
ast_copy_string(f->moh, defaultmoh, sizeof(f->moh));
}
/*! \brief Set parameter in profile from configuration file */
static void profile_set_param(struct call_followme *f, const char *param, const char *val, int linenum, int failunknown)
{
if (!strcasecmp(param, "musicclass") || !strcasecmp(param, "musiconhold") || !strcasecmp(param, "music"))
ast_copy_string(f->moh, val, sizeof(f->moh));
else if (!strcasecmp(param, "context"))
ast_copy_string(f->context, val, sizeof(f->context));
else if (!strcasecmp(param, "takecall"))
ast_copy_string(f->takecall, val, sizeof(f->takecall));
else if (!strcasecmp(param, "declinecall"))
ast_copy_string(f->nextindp, val, sizeof(f->nextindp));
else if (!strcasecmp(param, "call-from-prompt") || !strcasecmp(param, "call_from_prompt"))
ast_copy_string(f->callfromprompt, val, sizeof(f->callfromprompt));
else if (!strcasecmp(param, "followme-norecording-prompt") || !strcasecmp(param, "norecording_prompt"))
ast_copy_string(f->norecordingprompt, val, sizeof(f->norecordingprompt));
else if (!strcasecmp(param, "followme-options-prompt") || !strcasecmp(param, "options_prompt"))
ast_copy_string(f->optionsprompt, val, sizeof(f->optionsprompt));
else if (!strcasecmp(param, "followme-pls-hold-prompt") || !strcasecmp(param, "pls_hold_prompt"))
ast_copy_string(f->plsholdprompt, val, sizeof(f->plsholdprompt));
else if (!strcasecmp(param, "followme-status-prompt") || !strcasecmp(param, "status_prompt"))
ast_copy_string(f->statusprompt, val, sizeof(f->statusprompt));
else if (!strcasecmp(param, "followme-sorry-prompt") || !strcasecmp(param, "sorry_prompt"))
ast_copy_string(f->sorryprompt, val, sizeof(f->sorryprompt));
else if (failunknown) {
if (linenum >= 0)
ast_log(LOG_WARNING, "Unknown keyword in profile '%s': %s at line %d of followme.conf\n", f->name, param, linenum);
else
ast_log(LOG_WARNING, "Unknown keyword in profile '%s': %s\n", f->name, param);
}
}
/*! \brief Add a new number */
static struct number *create_followme_number(const char *number, int timeout, int numorder)
{
struct number *cur;
char *buf = ast_strdupa(number);
char *tmp;
if (!(cur = ast_calloc(1, sizeof(*cur))))
return NULL;
cur->timeout = timeout;
if ((tmp = strchr(buf, ',')))
*tmp = '\0';
ast_copy_string(cur->number, buf, sizeof(cur->number));
cur->order = numorder;
ast_debug(1, "Created a number, %s, order of , %d, with a timeout of %ld.\n", cur->number, cur->order, cur->timeout);
return cur;
}
/*! \brief Reload followme application module */
static int reload_followme(int reload)
{
struct call_followme *f;
struct ast_config *cfg;
char *cat = NULL, *tmp;
struct ast_variable *var;
struct number *cur, *nm;
char numberstr[90];
int timeout;
char *timeoutstr;
int numorder;
const char *takecallstr;
const char *declinecallstr;
const char *tmpstr;
struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
if (!(cfg = ast_config_load("followme.conf", config_flags))) {
ast_log(LOG_WARNING, "No follow me config file (followme.conf), so no follow me\n");
return 0;
} else if (cfg == CONFIG_STATUS_FILEUNCHANGED) {
return 0;
} else if (cfg == CONFIG_STATUS_FILEINVALID) {
ast_log(LOG_ERROR, "Config file followme.conf is in an invalid format. Aborting.\n");
return 0;
}
AST_RWLIST_WRLOCK(&followmes);
/* Reset Global Var Values */
featuredigittimeout = 5000;
/* Mark all profiles as inactive for the moment */
AST_RWLIST_TRAVERSE(&followmes, f, entry) {
f->active = 0;
}
featuredigittostr = ast_variable_retrieve(cfg, "general", "featuredigittimeout");
if (!ast_strlen_zero(featuredigittostr)) {
if (!sscanf(featuredigittostr, "%30d", &featuredigittimeout))
featuredigittimeout = 5000;
}
if ((takecallstr = ast_variable_retrieve(cfg, "general", "takecall")) && !ast_strlen_zero(takecallstr)) {
ast_copy_string(takecall, takecallstr, sizeof(takecall));
}
if ((declinecallstr = ast_variable_retrieve(cfg, "general", "declinecall")) && !ast_strlen_zero(declinecallstr)) {
ast_copy_string(nextindp, declinecallstr, sizeof(nextindp));
}
if ((tmpstr = ast_variable_retrieve(cfg, "general", "call-from-prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(callfromprompt, tmpstr, sizeof(callfromprompt));
} else if ((tmpstr = ast_variable_retrieve(cfg, "general", "call_from_prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(callfromprompt, tmpstr, sizeof(callfromprompt));
}
if ((tmpstr = ast_variable_retrieve(cfg, "general", "norecording-prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(norecordingprompt, tmpstr, sizeof(norecordingprompt));
} else if ((tmpstr = ast_variable_retrieve(cfg, "general", "norecording_prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(norecordingprompt, tmpstr, sizeof(norecordingprompt));
}
if ((tmpstr = ast_variable_retrieve(cfg, "general", "options-prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(optionsprompt, tmpstr, sizeof(optionsprompt));
} else if ((tmpstr = ast_variable_retrieve(cfg, "general", "options_prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(optionsprompt, tmpstr, sizeof(optionsprompt));
}
if ((tmpstr = ast_variable_retrieve(cfg, "general", "pls-hold-prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(plsholdprompt, tmpstr, sizeof(plsholdprompt));
} else if ((tmpstr = ast_variable_retrieve(cfg, "general", "pls_hold_prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(plsholdprompt, tmpstr, sizeof(plsholdprompt));
}
if ((tmpstr = ast_variable_retrieve(cfg, "general", "status-prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(statusprompt, tmpstr, sizeof(statusprompt));
} else if ((tmpstr = ast_variable_retrieve(cfg, "general", "status_prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(statusprompt, tmpstr, sizeof(statusprompt));
}
if ((tmpstr = ast_variable_retrieve(cfg, "general", "sorry-prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(sorryprompt, tmpstr, sizeof(sorryprompt));
} else if ((tmpstr = ast_variable_retrieve(cfg, "general", "sorry_prompt")) && !ast_strlen_zero(tmpstr)) {
ast_copy_string(sorryprompt, tmpstr, sizeof(sorryprompt));
}
/* Chug through config file */
while ((cat = ast_category_browse(cfg, cat))) {
int new = 0;
if (!strcasecmp(cat, "general"))
continue;
/* Look for an existing one */
AST_LIST_TRAVERSE(&followmes, f, entry) {
if (!strcasecmp(f->name, cat))
break;
}
ast_debug(1, "New profile %s.\n", cat);
if (!f) {
/* Make one then */
f = alloc_profile(cat);
new = 1;
}
/* Totally fail if we fail to find/create an entry */
if (!f)
continue;
if (!new)
ast_mutex_lock(&f->lock);
/* Re-initialize the profile */
init_profile(f);
free_numbers(f);
var = ast_variable_browse(cfg, cat);
while (var) {
if (!strcasecmp(var->name, "number")) {
int idx = 0;
/* Add a new number */
ast_copy_string(numberstr, var->value, sizeof(numberstr));
if ((tmp = strchr(numberstr, ','))) {
*tmp++ = '\0';
timeoutstr = ast_strdupa(tmp);
if ((tmp = strchr(timeoutstr, ','))) {
*tmp++ = '\0';
numorder = atoi(tmp);
if (numorder < 0)
numorder = 0;
} else
numorder = 0;
timeout = atoi(timeoutstr);
if (timeout < 0)
timeout = 25;
} else {
timeout = 25;
numorder = 0;
}
if (!numorder) {
idx = 1;
AST_LIST_TRAVERSE(&f->numbers, nm, entry)
idx++;
numorder = idx;
}
cur = create_followme_number(numberstr, timeout, numorder);
AST_LIST_INSERT_TAIL(&f->numbers, cur, entry);
} else {
profile_set_param(f, var->name, var->value, var->lineno, 1);
ast_debug(2, "Logging parameter %s with value %s from lineno %d\n", var->name, var->value, var->lineno);
}
var = var->next;
} /* End while(var) loop */
if (!new)
ast_mutex_unlock(&f->lock);
else
AST_RWLIST_INSERT_HEAD(&followmes, f, entry);
}
ast_config_destroy(cfg);
AST_RWLIST_UNLOCK(&followmes);
return 1;
}
static void clear_caller(struct findme_user *tmpuser)
{
struct ast_channel *outbound;
if (tmpuser && tmpuser->ochan && tmpuser->state >= 0) {
outbound = tmpuser->ochan;
if (!outbound->cdr) {
outbound->cdr = ast_cdr_alloc();
if (outbound->cdr)
ast_cdr_init(outbound->cdr, outbound);
}
if (outbound->cdr) {
char tmp[256];
snprintf(tmp, sizeof(tmp), "%s/%s", "Local", tmpuser->dialarg);
ast_cdr_setapp(outbound->cdr, "FollowMe", tmp);
ast_cdr_update(outbound);
ast_cdr_start(outbound->cdr);
ast_cdr_end(outbound->cdr);
/* If the cause wasn't handled properly */
if (ast_cdr_disposition(outbound->cdr, outbound->hangupcause))
ast_cdr_failed(outbound->cdr);
} else
ast_log(LOG_WARNING, "Unable to create Call Detail Record\n");
ast_hangup(tmpuser->ochan);
}
}
static void clear_calling_tree(struct findme_user_listptr *findme_user_list)
{
struct findme_user *tmpuser;
AST_LIST_TRAVERSE(findme_user_list, tmpuser, entry) {
clear_caller(tmpuser);
tmpuser->cleared = 1;
}
}
static struct ast_channel *wait_for_winner(struct findme_user_listptr *findme_user_list, struct number *nm, struct ast_channel *caller, char *namerecloc, int *status, struct fm_args *tpargs)
{
struct ast_channel *watchers[256];
int pos;
struct ast_channel *winner;
struct ast_frame *f;
int ctstatus = 0;
int dg;
struct findme_user *tmpuser;
int to = 0;
int livechannels = 0;
int tmpto;
long totalwait = 0, wtd = 0, towas = 0;
char *callfromname;
char *pressbuttonname;
/* ------------ wait_for_winner_channel start --------------- */
callfromname = ast_strdupa(tpargs->callfromprompt);
pressbuttonname = ast_strdupa(tpargs->optionsprompt);
if (AST_LIST_EMPTY(findme_user_list)) {
ast_verb(3, "couldn't reach at this number.\n");
return NULL;
}
if (!caller) {
ast_verb(3, "Original caller hungup. Cleanup.\n");
clear_calling_tree(findme_user_list);
return NULL;
}
totalwait = nm->timeout * 1000;
while (!ctstatus) {
to = 1000;
pos = 1;
livechannels = 0;
watchers[0] = caller;
dg = 0;
winner = NULL;
AST_LIST_TRAVERSE(findme_user_list, tmpuser, entry) {
if (tmpuser->state >= 0 && tmpuser->ochan) {
if (tmpuser->state == 3)
tmpuser->digts += (towas - wtd);
if (tmpuser->digts && (tmpuser->digts > featuredigittimeout)) {
ast_verb(3, "We've been waiting for digits longer than we should have.\n");
if (!ast_strlen_zero(namerecloc)) {
tmpuser->state = 1;
tmpuser->digts = 0;
if (!ast_streamfile(tmpuser->ochan, callfromname, tmpuser->ochan->language)) {
ast_sched_runq(tmpuser->ochan->sched);
} else {
ast_log(LOG_WARNING, "Unable to playback %s.\n", callfromname);
return NULL;
}
} else {
tmpuser->state = 2;
tmpuser->digts = 0;
if (!ast_streamfile(tmpuser->ochan, tpargs->norecordingprompt, tmpuser->ochan->language))
ast_sched_runq(tmpuser->ochan->sched);
else {
ast_log(LOG_WARNING, "Unable to playback %s.\n", tpargs->norecordingprompt);
return NULL;
}
}
}
if (tmpuser->ochan->stream) {
ast_sched_runq(tmpuser->ochan->sched);
tmpto = ast_sched_wait(tmpuser->ochan->sched);
if (tmpto > 0 && tmpto < to)
to = tmpto;
else if (tmpto < 0 && !tmpuser->ochan->timingfunc) {
ast_stopstream(tmpuser->ochan);
if (tmpuser->state == 1) {
ast_verb(3, "Playback of the call-from file appears to be done.\n");
if (!ast_streamfile(tmpuser->ochan, namerecloc, tmpuser->ochan->language)) {
tmpuser->state = 2;
} else {
ast_log(LOG_NOTICE, "Unable to playback %s. Maybe the caller didn't record their name?\n", namerecloc);
memset(tmpuser->yn, 0, sizeof(tmpuser->yn));
tmpuser->ynidx = 0;
if (!ast_streamfile(tmpuser->ochan, pressbuttonname, tmpuser->ochan->language))
tmpuser->state = 3;
else {
ast_log(LOG_WARNING, "Unable to playback %s.\n", pressbuttonname);
return NULL;
}
}
} else if (tmpuser->state == 2) {
ast_verb(3, "Playback of name file appears to be done.\n");
memset(tmpuser->yn, 0, sizeof(tmpuser->yn));
tmpuser->ynidx = 0;
if (!ast_streamfile(tmpuser->ochan, pressbuttonname, tmpuser->ochan->language)) {
tmpuser->state = 3;
} else {
return NULL;
}
} else if (tmpuser->state == 3) {
ast_verb(3, "Playback of the next step file appears to be done.\n");
tmpuser->digts = 0;
}
}
}
watchers[pos++] = tmpuser->ochan;
livechannels++;
}
}
tmpto = to;
if (to < 0) {
to = 1000;
tmpto = 1000;
}
towas = to;
winner = ast_waitfor_n(watchers, pos, &to);
tmpto -= to;
totalwait -= tmpto;
wtd = to;
if (totalwait <= 0) {
ast_verb(3, "We've hit our timeout for this step. Drop everyone and move on to the next one. %ld\n", totalwait);
clear_calling_tree(findme_user_list);
return NULL;
}
if (winner) {
/* Need to find out which channel this is */
dg = 0;
while ((winner != watchers[dg]) && (dg < 256))
dg++;
AST_LIST_TRAVERSE(findme_user_list, tmpuser, entry)
if (tmpuser->ochan == winner)
break;
f = ast_read(winner);
if (f) {
if (f->frametype == AST_FRAME_CONTROL) {
switch (f->subclass.integer) {
case AST_CONTROL_HANGUP:
ast_verb(3, "%s received a hangup frame.\n", winner->name);
if (f->data.uint32) {
winner->hangupcause = f->data.uint32;
}
if (dg == 0) {
ast_verb(3, "The calling channel hungup. Need to drop everyone else.\n");
clear_calling_tree(findme_user_list);
ctstatus = -1;
}
break;
case AST_CONTROL_ANSWER:
ast_verb(3, "%s answered %s\n", winner->name, caller->name);
/* If call has been answered, then the eventual hangup is likely to be normal hangup */
winner->hangupcause = AST_CAUSE_NORMAL_CLEARING;
caller->hangupcause = AST_CAUSE_NORMAL_CLEARING;
ast_verb(3, "Starting playback of %s\n", callfromname);
if (dg > 0) {
if (!ast_strlen_zero(namerecloc)) {
if (!ast_streamfile(winner, callfromname, winner->language)) {
ast_sched_runq(winner->sched);
tmpuser->state = 1;
} else {
ast_log(LOG_WARNING, "Unable to playback %s.\n", callfromname);
ast_frfree(f);
return NULL;
}
} else {
tmpuser->state = 2;
if (!ast_streamfile(tmpuser->ochan, tpargs->norecordingprompt, tmpuser->ochan->language))
ast_sched_runq(tmpuser->ochan->sched);
else {
ast_log(LOG_WARNING, "Unable to playback %s.\n", tpargs->norecordingprompt);
ast_frfree(f);
return NULL;
}
}
}
break;
case AST_CONTROL_BUSY:
ast_verb(3, "%s is busy\n", winner->name);
break;
case AST_CONTROL_CONGESTION:
ast_verb(3, "%s is circuit-busy\n", winner->name);
break;
case AST_CONTROL_RINGING:
ast_verb(3, "%s is ringing\n", winner->name);
break;
case AST_CONTROL_PROGRESS:
ast_verb(3, "%s is making progress passing it to %s\n", winner->name, caller->name);
break;
case AST_CONTROL_VIDUPDATE:
ast_verb(3, "%s requested a video update, passing it to %s\n", winner->name, caller->name);
break;
case AST_CONTROL_SRCUPDATE:
ast_verb(3, "%s requested a source update, passing it to %s\n", winner->name, caller->name);
break;
case AST_CONTROL_PROCEEDING:
ast_verb(3, "%s is proceeding passing it to %s\n", winner->name,caller->name);
break;
case AST_CONTROL_HOLD:
ast_verb(3, "Call on %s placed on hold\n", winner->name);
break;
case AST_CONTROL_UNHOLD:
ast_verb(3, "Call on %s left from hold\n", winner->name);
break;
case AST_CONTROL_OFFHOOK:
case AST_CONTROL_FLASH:
/* Ignore going off hook and flash */
break;
case -1:
ast_verb(3, "%s stopped sounds\n", winner->name);
break;
default:
ast_debug(1, "Dunno what to do with control type %d\n", f->subclass.integer);
break;
}
}
if (tmpuser && tmpuser->state == 3 && f->frametype == AST_FRAME_DTMF) {
if (winner->stream)
ast_stopstream(winner);
tmpuser->digts = 0;
ast_debug(1, "DTMF received: %c\n", (char) f->subclass.integer);
tmpuser->yn[tmpuser->ynidx] = (char) f->subclass.integer;
tmpuser->ynidx++;
ast_debug(1, "DTMF string: %s\n", tmpuser->yn);
if (tmpuser->ynidx >= ynlongest) {
ast_debug(1, "reached longest possible match - doing evals\n");
if (!strcmp(tmpuser->yn, tpargs->takecall)) {
ast_debug(1, "Match to take the call!\n");
ast_frfree(f);
return tmpuser->ochan;
}
if (!strcmp(tmpuser->yn, tpargs->nextindp)) {
ast_debug(1, "Next in dial plan step requested.\n");
*status = 1;
ast_frfree(f);
return NULL;
}
}
}
ast_frfree(f);
} else {
if (winner) {
ast_debug(1, "we didn't get a frame. hanging up. dg is %d\n",dg);
if (!dg) {
clear_calling_tree(findme_user_list);
return NULL;
} else {
tmpuser->state = -1;
ast_hangup(winner);
livechannels--;
ast_debug(1, "live channels left %d\n", livechannels);
if (!livechannels) {
ast_verb(3, "no live channels left. exiting.\n");
return NULL;
}
}
}
}
} else
ast_debug(1, "timed out waiting for action\n");
}
/* --- WAIT FOR WINNER NUMBER END! -----------*/
return NULL;
}
static void findmeexec(struct fm_args *tpargs)
{
struct number *nm;
struct ast_channel *outbound;
struct ast_channel *caller;
struct ast_channel *winner = NULL;
char dialarg[512];
int dg, idx;
char *rest, *number;
struct findme_user *tmpuser;
struct findme_user *fmuser;
struct findme_user_listptr *findme_user_list;
int status;
findme_user_list = ast_calloc(1, sizeof(*findme_user_list));
AST_LIST_HEAD_INIT_NOLOCK(findme_user_list);
/* We're going to figure out what the longest possible string of digits to collect is */
ynlongest = 0;
if (strlen(tpargs->takecall) > ynlongest)
ynlongest = strlen(tpargs->takecall);
if (strlen(tpargs->nextindp) > ynlongest)
ynlongest = strlen(tpargs->nextindp);
idx = 1;
caller = tpargs->chan;
AST_LIST_TRAVERSE(&tpargs->cnumbers, nm, entry)
if (nm->order == idx)
break;
while (nm) {
ast_debug(2, "Number %s timeout %ld\n", nm->number,nm->timeout);
number = ast_strdupa(nm->number);
ast_debug(3, "examining %s\n", number);
do {
rest = strchr(number, '&');
if (rest) {
*rest = 0;
rest++;
}
/* We check if that context exists, before creating the ast_channel struct needed */
if (!ast_exists_extension(caller, tpargs->context, number, 1, S_COR(caller->caller.id.number.valid, caller->caller.id.number.str, NULL))) {
/* XXX Should probably restructure to simply skip this item, instead of returning. XXX */
ast_log(LOG_ERROR, "Extension '%s@%s' doesn't exist\n", number, tpargs->context);
free(findme_user_list);
return;
}
if (!strcmp(tpargs->context, ""))
snprintf(dialarg, sizeof(dialarg), "%s%s", number, ast_test_flag(&tpargs->followmeflags, FOLLOWMEFLAG_DISABLEOPTIMIZATION) ? "/n" : "");
else
snprintf(dialarg, sizeof(dialarg), "%s@%s%s", number, tpargs->context, ast_test_flag(&tpargs->followmeflags, FOLLOWMEFLAG_DISABLEOPTIMIZATION) ? "/n" : "");
tmpuser = ast_calloc(1, sizeof(*tmpuser));
if (!tmpuser) {
ast_free(findme_user_list);
return;
}
outbound = ast_request("Local", caller->nativeformats, caller, dialarg, &dg);
if (outbound) {
ast_set_callerid(outbound,
S_COR(caller->caller.id.number.valid, caller->caller.id.number.str, NULL),
S_COR(caller->caller.id.name.valid, caller->caller.id.name.str, NULL),
S_COR(caller->caller.id.number.valid, caller->caller.id.number.str, NULL));
ast_channel_inherit_variables(tpargs->chan, outbound);
ast_channel_datastore_inherit(tpargs->chan, outbound);
ast_string_field_set(outbound, language, tpargs->chan->language);
ast_string_field_set(outbound, accountcode, tpargs->chan->accountcode);
ast_string_field_set(outbound, musicclass, tpargs->chan->musicclass);
ast_verb(3, "calling %s\n", dialarg);
if (!ast_call(outbound,dialarg,0)) {
tmpuser->ochan = outbound;
tmpuser->state = 0;
tmpuser->cleared = 0;
ast_copy_string(tmpuser->dialarg, dialarg, sizeof(dialarg));
AST_LIST_INSERT_TAIL(findme_user_list, tmpuser, entry);
} else {
ast_verb(3, "couldn't reach at this number.\n");
if (outbound) {
if (!outbound->cdr)
outbound->cdr = ast_cdr_alloc();
if (outbound->cdr) {
char tmp[256];
ast_cdr_init(outbound->cdr, outbound);
snprintf(tmp, sizeof(tmp), "%s/%s", "Local", dialarg);
ast_cdr_setapp(outbound->cdr, "FollowMe", tmp);
ast_cdr_update(outbound);
ast_cdr_start(outbound->cdr);
ast_cdr_end(outbound->cdr);
/* If the cause wasn't handled properly */
if (ast_cdr_disposition(outbound->cdr,outbound->hangupcause))
ast_cdr_failed(outbound->cdr);
} else {
ast_log(LOG_ERROR, "Unable to create Call Detail Record\n");
ast_hangup(outbound);
outbound = NULL;
}
}
}
} else
ast_log(LOG_WARNING, "Unable to allocate a channel for Local/%s cause: %s\n", dialarg, ast_cause2str(dg));
number = rest;
} while (number);
status = 0;
if (!AST_LIST_EMPTY(findme_user_list))
winner = wait_for_winner(findme_user_list, nm, caller, tpargs->namerecloc, &status, tpargs);
while ((fmuser = AST_LIST_REMOVE_HEAD(findme_user_list, entry))) {
if (!fmuser->cleared && fmuser->ochan != winner)
clear_caller(fmuser);
ast_free(fmuser);
}
fmuser = NULL;
tmpuser = NULL;
if (winner)
break;
if (!caller || ast_check_hangup(caller)) {
tpargs->status = 1;
ast_free(findme_user_list);
return;
}
idx++;
AST_LIST_TRAVERSE(&tpargs->cnumbers, nm, entry) {
if (nm->order == idx)
break;
}
}
ast_free(findme_user_list);
if (!winner)
tpargs->status = 1;
else {
tpargs->status = 100;
tpargs->outbound = winner;
}
return;
}
static struct call_followme *find_realtime(const char *name)
{
struct ast_variable *var = ast_load_realtime("followme", "name", name, SENTINEL), *v;
struct ast_config *cfg;
const char *catg;
struct call_followme *new;
struct ast_str *str = ast_str_create(16);
if (!var) {
return NULL;
}
if (!(new = alloc_profile(name))) {
return NULL;
}
for (v = var; v; v = v->next) {
if (!strcasecmp(v->name, "active")) {
if (ast_false(v->value)) {
ast_mutex_destroy(&new->lock);
ast_free(new);
return NULL;
}
} else {
profile_set_param(new, v->name, v->value, 0, 0);
}
}
ast_variables_destroy(var);
new->realtime = 1;
/* Load numbers */
if (!(cfg = ast_load_realtime_multientry("followme_numbers", "ordinal LIKE", "%", "name", name, SENTINEL))) {
ast_mutex_destroy(&new->lock);
ast_free(new);
return NULL;
}
for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
const char *numstr, *timeoutstr, *ordstr;
int timeout;
struct number *cur;
if (!(numstr = ast_variable_retrieve(cfg, catg, "phonenumber"))) {
continue;
}
if (!(timeoutstr = ast_variable_retrieve(cfg, catg, "timeout")) || sscanf(timeoutstr, "%30d", &timeout) != 1 || timeout < 1) {
timeout = 25;
}
/* This one has to exist; it was part of the query */
ordstr = ast_variable_retrieve(cfg, catg, "ordinal");
ast_str_set(&str, 0, "%s", numstr);
if ((cur = create_followme_number(ast_str_buffer(str), timeout, atoi(ordstr)))) {
AST_LIST_INSERT_TAIL(&new->numbers, cur, entry);
}
}
ast_config_destroy(cfg);
return new;
}
static void end_bridge_callback(void *data)
{
char buf[80];
time_t end;
struct ast_channel *chan = data;
time(&end);
ast_channel_lock(chan);
if (chan->cdr->answer.tv_sec) {
snprintf(buf, sizeof(buf), "%ld", (long) end - chan->cdr->answer.tv_sec);
pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
}
if (chan->cdr->start.tv_sec) {
snprintf(buf, sizeof(buf), "%ld", (long) end - chan->cdr->start.tv_sec);
pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
}
ast_channel_unlock(chan);
}
static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator)
{
bconfig->end_bridge_callback_data = originator;
}
static int app_exec(struct ast_channel *chan, const char *data)
{
struct fm_args targs = { 0, };
struct ast_bridge_config config;
struct call_followme *f;
struct number *nm, *newnm;
int res = 0;
char *argstr;
char namerecloc[255];
int duration = 0;
struct ast_channel *caller;
struct ast_channel *outbound;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(followmeid);
AST_APP_ARG(options);
);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "%s requires an argument (followmeid)\n", app);
return -1;
}
if (!(argstr = ast_strdupa((char *)data))) {
ast_log(LOG_ERROR, "Out of memory!\n");
return -1;
}
AST_STANDARD_APP_ARGS(args, argstr);
if (ast_strlen_zero(args.followmeid)) {
ast_log(LOG_WARNING, "%s requires an argument (followmeid)\n", app);
return -1;
}
AST_RWLIST_RDLOCK(&followmes);
AST_RWLIST_TRAVERSE(&followmes, f, entry) {
if (!strcasecmp(f->name, args.followmeid) && (f->active))
break;
}
AST_RWLIST_UNLOCK(&followmes);
ast_debug(1, "New profile %s.\n", args.followmeid);
if (!f) {
f = find_realtime(args.followmeid);
}
if (!f) {
ast_log(LOG_WARNING, "Profile requested, %s, not found in the configuration.\n", args.followmeid);
return 0;
}
/* XXX TODO: Reinsert the db check value to see whether or not follow-me is on or off */
if (args.options)
ast_app_parse_options(followme_opts, &targs.followmeflags, NULL, args.options);
/* Lock the profile lock and copy out everything we need to run with before unlocking it again */
ast_mutex_lock(&f->lock);
targs.mohclass = ast_strdupa(f->moh);
ast_copy_string(targs.context, f->context, sizeof(targs.context));
ast_copy_string(targs.takecall, f->takecall, sizeof(targs.takecall));
ast_copy_string(targs.nextindp, f->nextindp, sizeof(targs.nextindp));
ast_copy_string(targs.callfromprompt, f->callfromprompt, sizeof(targs.callfromprompt));
ast_copy_string(targs.norecordingprompt, f->norecordingprompt, sizeof(targs.norecordingprompt));
ast_copy_string(targs.optionsprompt, f->optionsprompt, sizeof(targs.optionsprompt));
ast_copy_string(targs.plsholdprompt, f->plsholdprompt, sizeof(targs.plsholdprompt));
ast_copy_string(targs.statusprompt, f->statusprompt, sizeof(targs.statusprompt));
ast_copy_string(targs.sorryprompt, f->sorryprompt, sizeof(targs.sorryprompt));
/* Copy the numbers we're going to use into another list in case the master list should get modified
(and locked) while we're trying to do a follow-me */
AST_LIST_HEAD_INIT_NOLOCK(&targs.cnumbers);
AST_LIST_TRAVERSE(&f->numbers, nm, entry) {
newnm = create_followme_number(nm->number, nm->timeout, nm->order);
AST_LIST_INSERT_TAIL(&targs.cnumbers, newnm, entry);
}
ast_mutex_unlock(&f->lock);
snprintf(namerecloc,sizeof(namerecloc),"%s/followme.%s",ast_config_AST_SPOOL_DIR,chan->uniqueid);
duration = 5;
if (!ast_fileexists(namerecloc, NULL, chan->language))
ast_copy_string(namerecloc, "", sizeof(namerecloc));
if (ast_test_flag(&targs.followmeflags, FOLLOWMEFLAG_NOANSWER)) {
if (chan->_state != AST_STATE_UP) {
ast_indicate(chan, AST_CONTROL_RINGING);
}
} else {
/* Answer the call */
if (chan->_state != AST_STATE_UP)
ast_answer(chan);
if (ast_test_flag(&targs.followmeflags, FOLLOWMEFLAG_STATUSMSG))
ast_stream_and_wait(chan, targs.statusprompt, "");
if (ast_test_flag(&targs.followmeflags, FOLLOWMEFLAG_RECORDNAME))
if (ast_play_and_record(chan, "vm-rec-name", namerecloc, 5, "sln", &duration, ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE), 0, NULL) < 0)
goto outrun;
if (!ast_test_flag(&targs.followmeflags, FOLLOWMEFLAG_DISABLEHOLDPROMPT)) {
if (ast_streamfile(chan, targs.plsholdprompt, chan->language))
goto outrun;
if (ast_waitstream(chan, "") < 0)
goto outrun;
}
ast_moh_start(chan, S_OR(targs.mohclass, NULL), NULL);
}
targs.status = 0;
targs.chan = chan;
ast_copy_string(targs.namerecloc, namerecloc, sizeof(targs.namerecloc));
findmeexec(&targs);
while ((nm = AST_LIST_REMOVE_HEAD(&targs.cnumbers, entry)))
ast_free(nm);
if (!ast_strlen_zero(namerecloc))
unlink(namerecloc);
if (ast_test_flag(&targs.followmeflags, FOLLOWMEFLAG_NOANSWER)) {
if (chan->_state != AST_STATE_UP) {
ast_answer(chan);
}
} else {
ast_moh_stop(chan);
}
if (targs.status != 100) {
if (ast_test_flag(&targs.followmeflags, FOLLOWMEFLAG_UNREACHABLEMSG))
ast_stream_and_wait(chan, targs.sorryprompt, "");
res = 0;
} else {
caller = chan;
outbound = targs.outbound;
/* Bridge the two channels. */
memset(&config, 0, sizeof(config));
ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
config.end_bridge_callback = end_bridge_callback;
config.end_bridge_callback_data = chan;
config.end_bridge_callback_data_fixup = end_bridge_callback_data_fixup;
/* Be sure no generators are left on it */
ast_deactivate_generator(caller);
/* Make sure channels are compatible */
res = ast_channel_make_compatible(caller, outbound);
if (res < 0) {
ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", caller->name, outbound->name);
ast_hangup(outbound);
goto outrun;
}
res = ast_bridge_call(caller, outbound, &config);
if (outbound)
ast_hangup(outbound);
}
outrun:
if (f->realtime) {
/* Not in list */
free_numbers(f);
ast_free(f);
}
return res;
}
static int unload_module(void)
{
struct call_followme *f;
ast_unregister_application(app);
/* Free Memory. Yeah! I'm free! */
AST_RWLIST_WRLOCK(&followmes);
while ((f = AST_RWLIST_REMOVE_HEAD(&followmes, entry))) {
free_numbers(f);
ast_free(f);
}
AST_RWLIST_UNLOCK(&followmes);
return 0;
}
static int load_module(void)
{
if(!reload_followme(0))
return AST_MODULE_LOAD_DECLINE;
return ast_register_application_xml(app, app_exec);
}
static int reload(void)
{
reload_followme(1);
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Find-Me/Follow-Me Application",
.load = load_module,
.unload = unload_module,
.reload = reload,
);
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