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[PATCH 2/2] response handlers needed for SASL PLAIN authentication
From: |
Joseph Gay |
Subject: |
[PATCH 2/2] response handlers needed for SASL PLAIN authentication |
Date: |
Wed, 01 Feb 2012 12:22:58 -0600 |
User-agent: |
Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.92 (gnu/linux) |
---
erc-sasl.el | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 71 insertions(+), 0 deletions(-)
create mode 100644 erc-sasl.el
diff --git a/erc-sasl.el b/erc-sasl.el
new file mode 100644
index 0000000..392ab5d
--- /dev/null
+++ b/erc-sasl.el
@@ -0,0 +1,71 @@
+;; erc-sasl.el -- handle SASL PLAIN authentication
+
+;; Copyright (C) 2012 Free Software Foundation, Inc.
+
+;; Author: Joseph Gay <address@hidden>
+;; Keywords: comm
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This file implements SASL PLAIN authentication
+;; To activate:
+;;
+;; (require 'erc-sasl)
+;;
+;; To disable:
+;; (setq erc-sasl-use-sasl nil)
+;;
+;; NOTE: requires passing a password initially to (erc) and variants
+
+;;; Code:
+
+(defvar erc-sasl-use-sasl t
+ "Set to nil to disable SASL auth")
+
+(define-erc-response-handler (CAP)
+ "Client capability framework is used to request SASL auth, need
+ to wait for ACK to begin" nil
+ (let ((msg (erc-response.contents parsed)))
+ (when (string-match " *sasl" msg)
+ (erc-server-send "AUTHENTICATE PLAIN")
+ ;; now wait for AUTHENTICATE +
+ )))
+
+(define-erc-response-handler (AUTHENTICATE)
+ "Handling empty server response indicating ready to receive authentication."
nil
+ (if erc-session-password
+ (let ((msg (erc-response.contents parsed)))
+ (when (string= "+" msg)
+ ;; plain auth
+ (erc-server-send (format "AUTHENTICATE %s"
+ (base64-encode-string
+ (concat "\0" (erc-current-nick) "\0"
erc-session-password) t)))))
+ (progn
+ (erc-display-messaged parsed 'error (if erc-server-connected 'active
proc)
+ "You must set a password in order to use SASL
authentication.")
+ ;; aborting SASL auth
+ (erc-server-send (erc-server-send "AUTHENTICATE *")))))
+
+(define-erc-response-handler (903)
+ "Handling a successful SASL authentication." nil
+ (erc-server-send "CAP END"))
+
+;;; erc-sasl.el ends here
+;; Local Variables:
+;; indent-tabs-mode: nil
+;; End:
--
1.7.2.5