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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2005, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief Block all calls without Caller*ID, require phone # to be entered
*
*/
#include <string.h>
#include <stdlib.h>
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/utils.h"
#include "asterisk/logger.h"
#include "asterisk/options.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/translate.h"
#include "asterisk/image.h"
#include "asterisk/callerid.h"
#include "asterisk/app.h"
#include "asterisk/config.h"
#define PRIV_CONFIG "privacy.conf"
static char *tdesc = "Require phone number to be entered, if no CallerID sent";
static char *app = "PrivacyManager";
static char *synopsis = "Require phone number to be entered, if no CallerID sent";
static char *descrip =
" PrivacyManager: If no Caller*ID is sent, PrivacyManager answers the\n"
"channel and asks the caller to enter their phone number.\n"
"The caller is given 3 attempts. If after 3 attempts, they do not enter\n"
"at least a 10 digit phone number, and if there exists a priority n + 101,\n"
"where 'n' is the priority of the current instance, then the\n"
"channel will be setup to continue at that priority level.\n"
"Otherwise, it returns 0. Does nothing if Caller*ID was received on the\n"
"channel.\n"
" Configuration file privacy.conf contains two variables:\n"
" maxretries default 3 -maximum number of attempts the caller is allowed to input a callerid.\n"
" minlength default 10 -minimum allowable digits in the input callerid number.\n"
;
STANDARD_LOCAL_USER;
LOCAL_USER_DECL;
static int
privacy_exec (struct ast_channel *chan, void *data)
{
int res=0;
int retries;
int maxretries = 3;
int minlength = 10;
int x;
char *s;
char phone[30];
struct localuser *u;
struct ast_config *cfg;
LOCAL_USER_ADD (u);
if (!ast_strlen_zero(chan->cid.cid_num)) {
if (option_verbose > 2)
ast_verbose (VERBOSE_PREFIX_3 "CallerID Present: Skipping\n");
} else {
/*Answer the channel if it is not already*/
if (chan->_state != AST_STATE_UP) {
res = ast_answer(chan);
if (res) {
LOCAL_USER_REMOVE(u);
return -1;
}
}
/*Read in the config file*/
cfg = ast_config_load(PRIV_CONFIG);
/*Play unidentified call*/
res = ast_safe_sleep(chan, 1000);
if (!res)
res = ast_streamfile(chan, "privacy-unident", chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (cfg && (s = ast_variable_retrieve(cfg, "general", "maxretries"))) {
if (sscanf(s, "%d", &x) == 1) {
maxretries = x;
} else {
ast_log(LOG_WARNING, "Invalid max retries argument\n");
}
}
if (cfg && (s = ast_variable_retrieve(cfg, "general", "minlength"))) {
if (sscanf(s, "%d", &x) == 1) {
minlength = x;
} else {
ast_log(LOG_WARNING, "Invalid min length argument\n");
}
}
/*Ask for 10 digit number, give 3 attempts*/
for (retries = 0; retries < maxretries; retries++) {
if (!res)
res = ast_streamfile(chan, "privacy-prompt", chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (!res )
res = ast_readstring(chan, phone, sizeof(phone) - 1, /* digit timeout ms */ 3200, /* first digit timeout */ 5000, "#");
if (res < 0)
break;
/*Make sure we get at least digits*/
if (strlen(phone) >= minlength )
break;
else {
res = ast_streamfile(chan, "privacy-incorrect", chan->language);
if (!res)
res = ast_waitstream(chan, "");
}
}
/*Got a number, play sounds and send them on their way*/
if ((retries < maxretries) && res == 1 ) {
res = ast_streamfile(chan, "privacy-thankyou", chan->language);
if (!res)
res = ast_waitstream(chan, "");
ast_set_callerid (chan, phone, "Privacy Manager", NULL);
if (option_verbose > 2)
ast_verbose (VERBOSE_PREFIX_3 "Changed Caller*ID to %s\n",phone);
} else {
/* Send the call to n+101 priority, where n is the current priority */
ast_goto_if_exists(chan, chan->context, chan->exten, chan->priority + 101);
}
if (cfg)
ast_config_destroy(cfg);
}
LOCAL_USER_REMOVE (u);
return 0;
}
int
unload_module (void)
{
int res;
res = ast_unregister_application (app);
STANDARD_HANGUP_LOCALUSERS;
return res;
}
int
load_module (void)
{
return ast_register_application (app, privacy_exec, synopsis,
descrip);
}
char *
description (void)
{
return tdesc;
}
int
usecount (void)
{
int res;
STANDARD_USECOUNT (res);
return res;
}
char *
key ()
{
return ASTERISK_GPL_KEY;
}
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