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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
*
* \author Mark Spencer <markster@digium.com>
*
* \ingroup applications
*/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/utils.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"
/*** DOCUMENTATION
<application name="PrivacyManager" language="en_US">
<synopsis>
Require phone number to be entered, if no CallerID sent
</synopsis>
<syntax>
<parameter name="maxretries">
<para>Total tries caller is allowed to input a callerid. Defaults to <literal>3</literal>.</para>
</parameter>
<parameter name="minlength">
<para>Minimum allowable digits in the input callerid number. Defaults to <literal>10</literal>.</para>
</parameter>
<parameter name="context">
<para>Context to check the given callerid against patterns.</para>
</parameter>
</syntax>
<description>
<para>If no Caller*ID is sent, PrivacyManager answers the channel and asks
the caller to enter their phone number. The caller is given
<replaceable>maxretries</replaceable> attempts to do so. The application does
<emphasis>nothing</emphasis> if Caller*ID was received on the channel.</para>
<para>The application sets the following channel variable upon completion:</para>
<variablelist>
<variable name="PRIVACYMGRSTATUS">
<para>The status of the privacy manager's attempt to collect a phone number from the user.</para>
<value name="SUCCESS"/>
<value name="FAILED"/>
</variable>
</variablelist>
</description>
<see-also>
<ref type="application">Zapateller</ref>
</see-also>
</application>
***/
static char *app = "PrivacyManager";
static int privacy_exec(struct ast_channel *chan, const char *data)
{
int res=0;
int retries;
int maxretries = 3;
int minlength = 10;
int x = 0;
char phone[30];
char *parse = NULL;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(maxretries);
AST_APP_ARG(minlength);
AST_APP_ARG(options);
AST_APP_ARG(checkcontext);
);
if (chan->caller.id.number.valid
&& !ast_strlen_zero(chan->caller.id.number.str)) {
ast_verb(3, "CallerID number present: Skipping\n");
} else {
/*Answer the channel if it is not already*/
if (chan->_state != AST_STATE_UP) {
if ((res = ast_answer(chan))) {
return -1;
}
}
parse = ast_strdupa(S_OR(data, ""));
AST_STANDARD_APP_ARGS(args, parse);
if (!ast_strlen_zero(args.maxretries)) {
if (sscanf(args.maxretries, "%30d", &x) == 1 && x > 0) {
maxretries = x;
} else {
ast_log(LOG_WARNING, "Invalid max retries argument: '%s'\n", args.maxretries);
}
}
if (!ast_strlen_zero(args.minlength)) {
if (sscanf(args.minlength, "%30d", &x) == 1 && x > 0) {
minlength = x;
} else {
ast_log(LOG_WARNING, "Invalid min length argument: '%s'\n", args.minlength);
}
}
/* 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, "");
}
/* 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 ) {
/* if we have a checkcontext argument, do pattern matching */
if (!ast_strlen_zero(args.checkcontext)) {
if (!ast_exists_extension(NULL, args.checkcontext, phone, 1, NULL)) {
res = ast_streamfile(chan, "privacy-incorrect", chan->language);
if (!res) {
res = ast_waitstream(chan, "");
}
} else {
break;
}
} else {
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 >= 0) {
res = ast_streamfile(chan, "privacy-thankyou", chan->language);
if (!res) {
res = ast_waitstream(chan, "");
}
/*
* This is a caller entered number that is going to be used locally.
* Therefore, the given number presentation is allowed and should
* be passed out to other channels. This is the point of the
* privacy application.
*/
chan->caller.id.name.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
chan->caller.id.number.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
chan->caller.id.number.plan = 0;/* Unknown */
ast_set_callerid(chan, phone, "Privacy Manager", NULL);
ast_verb(3, "Changed Caller*ID number to '%s'\n", phone);
pbx_builtin_setvar_helper(chan, "PRIVACYMGRSTATUS", "SUCCESS");
} else {
pbx_builtin_setvar_helper(chan, "PRIVACYMGRSTATUS", "FAILED");
}
}
return 0;
}
static int unload_module(void)
{
return ast_unregister_application(app);
}
static int load_module(void)
{
return ast_register_application_xml(app, privacy_exec);
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Require phone number to be entered, if no CallerID sent");
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