159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief App to lookup the callerid number, and see if it is blacklisted
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* \ingroup applications
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*
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "asterisk/lock.h"
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/options.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/translate.h"
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#include "asterisk/image.h"
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#include "asterisk/callerid.h"
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#include "asterisk/astdb.h"
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#include "asterisk/options.h"
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static char *app = "LookupBlacklist";
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static char *synopsis = "Look up Caller*ID name/number from blacklist database";
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static char *descrip =
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" LookupBlacklist(options): Looks up the Caller*ID number on the active\n"
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"channel in the Asterisk database (family 'blacklist'). \n"
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"The option string may contain the following character:\n"
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" 'j' -- jump to n+101 priority if the number/name is found in the blacklist\n"
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"This application sets the following channel variable upon completion:\n"
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" LOOKUPBLSTATUS The status of the Blacklist lookup as a text string, one of\n"
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" FOUND | NOTFOUND\n"
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"Example: exten => 1234,1,LookupBlacklist()\n";
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static int blacklist_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
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{
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char blacklist[1];
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int bl = 0;
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if (chan->cid.cid_num) {
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if (!ast_db_get("blacklist", chan->cid.cid_num, blacklist, sizeof (blacklist)))
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bl = 1;
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}
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if (chan->cid.cid_name) {
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if (!ast_db_get("blacklist", chan->cid.cid_name, blacklist, sizeof (blacklist)))
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bl = 1;
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}
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snprintf(buf, len, "%d", bl);
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return 0;
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}
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static struct ast_custom_function blacklist_function = {
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.name = "BLACKLIST",
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.synopsis = "Check if the callerid is on the blacklist",
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.desc = "Uses astdb to check if the Caller*ID is in family 'blacklist'. Returns 1 or 0.\n",
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.syntax = "BLACKLIST()",
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.read = blacklist_read,
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};
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static int
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lookupblacklist_exec (struct ast_channel *chan, void *data)
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{
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char blacklist[1];
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struct ast_module_user *u;
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int bl = 0;
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int priority_jump = 0;
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static int dep_warning = 0;
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u = ast_module_user_add(chan);
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if (!dep_warning) {
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dep_warning = 1;
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ast_log(LOG_WARNING, "LookupBlacklist is deprecated. Please use ${BLACKLIST()} instead.\n");
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}
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if (!ast_strlen_zero(data)) {
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if (strchr(data, 'j'))
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priority_jump = 1;
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}
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if (chan->cid.cid_num) {
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if (!ast_db_get("blacklist", chan->cid.cid_num, blacklist, sizeof (blacklist))) {
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if (option_verbose > 2)
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ast_log(LOG_NOTICE, "Blacklisted number %s found\n",chan->cid.cid_num);
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bl = 1;
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}
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}
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if (chan->cid.cid_name) {
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if (!ast_db_get("blacklist", chan->cid.cid_name, blacklist, sizeof (blacklist))) {
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if (option_verbose > 2)
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ast_log (LOG_NOTICE,"Blacklisted name \"%s\" found\n",chan->cid.cid_name);
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bl = 1;
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}
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}
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if (bl) {
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if (priority_jump || ast_opt_priority_jumping)
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ast_goto_if_exists(chan, chan->context, chan->exten, chan->priority + 101);
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pbx_builtin_setvar_helper(chan, "LOOKUPBLSTATUS", "FOUND");
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} else
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pbx_builtin_setvar_helper(chan, "LOOKUPBLSTATUS", "NOTFOUND");
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ast_module_user_remove(u);
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return 0;
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}
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static int unload_module(void)
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{
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int res;
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res = ast_unregister_application(app);
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res |= ast_custom_function_unregister(&blacklist_function);
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ast_module_user_hangup_all();
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return res;
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}
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static int load_module(void)
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{
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int res = ast_custom_function_register(&blacklist_function);
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res |= ast_register_application (app, lookupblacklist_exec, synopsis,descrip);
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return res;
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Look up Caller*ID name/number from blacklist database");
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