HCoop / bpt / emacs.git / blame
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1 | ;;; sasl-cram.el --- CRAM-MD5 module for the SASL client framework |
| 2 | ||
| acaf905b | 3 | ;; Copyright (C) 2000, 2007-2012 Free Software Foundation, Inc. |
| 369fc5a6 GM |
4 | |
| 5 | ;; Author: Daiki Ueno <ueno@unixuser.org> | |
| 6 | ;; Kenichi OKADA <okada@opaopa.org> | |
| 7 | ;; Keywords: SASL, CRAM-MD5 | |
| bd78fa1d | 8 | ;; Package: sasl |
| 369fc5a6 GM |
9 | |
| 10 | ;; This file is part of GNU Emacs. | |
| 11 | ||
| 874a927a | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 369fc5a6 | 13 | ;; it under the terms of the GNU General Public License as published by |
| 874a927a GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
| 15 | ;; (at your option) any later version. | |
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16 | |
| 17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | ;; GNU General Public License for more details. | |
| 21 | ||
| 22 | ;; You should have received a copy of the GNU General Public License | |
| 874a927a | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
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24 | |
| 25 | ;;; Commentary: | |
| 26 | ||
| 27 | (require 'sasl) | |
| 28 | (require 'hmac-md5) | |
| 29 | ||
| 30 | (defconst sasl-cram-md5-steps | |
| 31 | '(ignore ;no initial response | |
| 32 | sasl-cram-md5-response)) | |
| 33 | ||
| 34 | (defun sasl-cram-md5-response (client step) | |
| 35 | (let ((passphrase | |
| 36 | (sasl-read-passphrase | |
| 37 | (format "CRAM-MD5 passphrase for %s: " | |
| 38 | (sasl-client-name client))))) | |
| 39 | (unwind-protect | |
| 40 | (concat (sasl-client-name client) " " | |
| 41 | (encode-hex-string | |
| 42 | (hmac-md5 (sasl-step-data step) passphrase))) | |
| 43 | (fillarray passphrase 0)))) | |
| 44 | ||
| 45 | (put 'sasl-cram 'sasl-mechanism | |
| 46 | (sasl-make-mechanism "CRAM-MD5" sasl-cram-md5-steps)) | |
| 47 | ||
| 48 | (provide 'sasl-cram) | |
| 49 | ||
| 369fc5a6 | 50 | ;;; sasl-cram.el ends here |