/* * Asterisk -- An open source telephony toolkit. * * Copyright (C) 2005-2006, Digium, Inc. * Copyright (C) 2005, Olle E. Johansson, Edvina.net * Copyright (C) 2005, Russell Bryant * * 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 * \author Russell Bryant */ #include "asterisk.h" ASTERISK_FILE_VERSION(__FILE__, "$Revision$") #include #include #include #include #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 int md5(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len) { if (ast_strlen_zero(data)) { ast_log(LOG_WARNING, "Syntax: MD5() - missing argument!\n"); return -1; } ast_md5_hash(buf, data); buf[32] = '\0'; return 0; } static int checkmd5(struct ast_channel *chan, char *cmd, char *parse, char *buf, size_t len) { char newmd5[33]; static int deprecated = 0; AST_DECLARE_APP_ARGS(args, AST_APP_ARG(digest); AST_APP_ARG(data);); if (ast_strlen_zero(parse)) { ast_log(LOG_WARNING, "Syntax: CHECK_MD5(,) - missing argument!\n"); return -1; } AST_STANDARD_APP_ARGS(args, parse); if (args.argc < 2) { ast_log(LOG_WARNING, "Syntax: CHECK_MD5(,) - missing argument!\n"); return -1; } 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 0; } static struct ast_custom_function md5_function = { .name = "MD5", .synopsis = "Computes an MD5 digest", .syntax = "MD5()", .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(,)", .read = checkmd5, }; static int unload_module(void) { return ast_custom_function_unregister(&md5_function) | ast_custom_function_unregister(&checkmd5_function); } static int load_module(void) { return ast_custom_function_register(&md5_function) | ast_custom_function_register(&checkmd5_function); } AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "MD5 digest dialplan functions");