113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*
|
|
* 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 Function to lookup the callerid number, and see if it is blacklisted
|
|
*
|
|
* \author Mark Spencer <markster@digium.com>
|
|
*
|
|
* \ingroup functions
|
|
*
|
|
*/
|
|
|
|
/*** MODULEINFO
|
|
<support_level>core</support_level>
|
|
***/
|
|
|
|
#include "asterisk.h"
|
|
|
|
#include "asterisk/pbx.h"
|
|
#include "asterisk/module.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/astdb.h"
|
|
|
|
/*** DOCUMENTATION
|
|
<function name="BLACKLIST" language="en_US">
|
|
<synopsis>
|
|
Check if the callerid is on the blacklist.
|
|
</synopsis>
|
|
<syntax />
|
|
<description>
|
|
<para>Uses astdb to check if the Caller*ID is in family <literal>blacklist</literal>.
|
|
Returns <literal>1</literal> or <literal>0</literal>.</para>
|
|
</description>
|
|
<see-also>
|
|
<ref type="function">DB</ref>
|
|
</see-also>
|
|
</function>
|
|
|
|
***/
|
|
|
|
static int blacklist_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
|
|
{
|
|
char blacklist[1];
|
|
int bl = 0;
|
|
|
|
if (!chan) {
|
|
ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
|
|
return -1;
|
|
}
|
|
|
|
if (ast_channel_caller(chan)->id.number.valid && ast_channel_caller(chan)->id.number.str) {
|
|
if (!ast_db_get("blacklist", ast_channel_caller(chan)->id.number.str, blacklist, sizeof (blacklist)))
|
|
bl = 1;
|
|
}
|
|
if (ast_channel_caller(chan)->id.name.valid && ast_channel_caller(chan)->id.name.str) {
|
|
if (!ast_db_get("blacklist", ast_channel_caller(chan)->id.name.str, blacklist, sizeof (blacklist)))
|
|
bl = 1;
|
|
}
|
|
|
|
snprintf(buf, len, "%d", bl);
|
|
return 0;
|
|
}
|
|
|
|
static int blacklist_read2(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)
|
|
{
|
|
/* 2 bytes is a single integer, plus terminating null */
|
|
if (ast_str_size(*str) - ast_str_strlen(*str) < 2) {
|
|
if (len > ast_str_size(*str) || len == 0) {
|
|
ast_str_make_space(str, len ? len : ast_str_strlen(*str) + 2);
|
|
}
|
|
}
|
|
if (ast_str_size(*str) - ast_str_strlen(*str) >= 2) {
|
|
int res = blacklist_read(chan, cmd, data, ast_str_buffer(*str) + ast_str_strlen(*str), 2);
|
|
ast_str_update(*str);
|
|
return res;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static struct ast_custom_function blacklist_function = {
|
|
.name = "BLACKLIST",
|
|
.read = blacklist_read,
|
|
.read2 = blacklist_read2,
|
|
};
|
|
|
|
static int unload_module(void)
|
|
{
|
|
return ast_custom_function_unregister(&blacklist_function);
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
return ast_custom_function_register(&blacklist_function);
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Look up Caller*ID name/number from blacklist database");
|