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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2005, Digium, Inc.
* Copyright (C) 2005, Olle E. Johansson, Edvina.net
* Copyright (C) 2005, Russell Bryant <russelb@clemson.edu>
*
* 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 MD5 digest related dialplan functions
*
* \author Olle E. Johansson <oej@edvina.net>
* \author Russell Bryant <russelb@clemson.edu>
*/
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/logger.h"
#include "asterisk/utils.h"
#include "asterisk/app.h"
static char *md5(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
{
char md5[33];
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "Syntax: MD5(<data>) - missing argument!\n");
return NULL;
}
ast_md5_hash(md5, data);
ast_copy_string(buf, md5, len);
return buf;
}
static char *checkmd5(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
{
char newmd5[33];
char *parse;
static int deprecated = 0;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(digest);
AST_APP_ARG(data);
);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "Syntax: CHECK_MD5(<digest>,<data>) - missing argument!\n");
return NULL;
}
if (!(parse = ast_strdupa(data)))
return NULL;
AST_STANDARD_APP_ARGS(args, parse);
if (args.argc < 2) {
ast_log(LOG_WARNING, "Syntax: CHECK_MD5(<digest>,<data>) - missing argument!\n");
return NULL;
}
if (!deprecated) {
deprecated = 1;
ast_log(LOG_WARNING, "CHECK_MD5() is deprecated in Asterisk 1.4 and later.\n");
}
ast_md5_hash(newmd5, args.data);
if (!strcasecmp(newmd5, args.digest) ) /* they match */
ast_copy_string(buf, "1", len);
else
ast_copy_string(buf, "0", len);
return buf;
}
static struct ast_custom_function md5_function = {
.name = "MD5",
.synopsis = "Computes an MD5 digest",
.syntax = "MD5(<data>)",
.read = md5,
};
static struct ast_custom_function checkmd5_function = {
.name = "CHECK_MD5",
.synopsis = "Checks an MD5 digest",
.desc = "Returns 1 on a match, 0 otherwise\n",
.syntax = "CHECK_MD5(<digest>,<data>)",
.read = checkmd5,
};
static char *tdesc = "MD5 digest dialplan functions";
int unload_module(void)
{
return ast_custom_function_unregister(&md5_function) || ast_custom_function_unregister(&checkmd5_function);
}
int load_module(void)
{
return ast_custom_function_register(&md5_function) || ast_custom_function_register(&checkmd5_function);
}
char *description(void)
{
return tdesc;
}
int usecount(void)
{
return 0;
}
char *key()
{
return ASTERISK_GPL_KEY;
}
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