/usr/share/emacs/site-lisp/wl/elmo/elmo-passwd.el is in wl-beta 2.15.9+0.20171209-1.
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;; Copyright (C) 2017 Kazuhiro Ito <kzhr@d1.dion.ne.jp>
;; Author: Kazuhiro Ito <kzhr@d1.dion.ne.jp>
;; Keywords: mail, net news
;; This file is part of ELMO (Elisp Library for Message Orchestration).
;; This program 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 2, or (at your option)
;; any later version.
;;
;; This program 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;
;;; Commentary:
;;
;;; Code:
;;
(require 'luna)
(require 'elmo-vars)
(require 'elmo-util)
(defgroup elmo-passwd nil
"ELMO password manager settings."
:prefix "elmo-passwd-"
:group 'elmo)
(defcustom elmo-passwd-life-time nil
"*Duration of ELMO Password in seconds. nil means infinity."
:type '(choice (const :tag "Infinity" nil)
number)
:group 'elmo-passwd)
(defcustom elmo-passwd-confirm-before-clear nil
"Confirm whether save passwords before clear password storage."
:type 'boolean
:group 'elmo-passwd)
(eval-and-compile
(luna-define-class elmo-passwd () (timers))
(luna-define-internal-accessors 'elmo-passwd))
(luna-define-generic elmo-passwd-load (elmo-passwd)
"Load password storage.")
(luna-define-generic elmo-passwd-clear (elmo-passwd)
"Clear password storage.")
(luna-define-generic elmo-passwd-save (elmo-passwd)
"Save passwords into storage.")
(luna-define-generic elmo-passwd-get (elmo-passwd key)
"Get password for KEY. KEY is a list of protocol-name, username, authentication mechanism, host name and port number.")
(luna-define-generic elmo-passwd-remove (elmo-passwd key)
"Remove password for KEY from cache.")
(luna-define-generic elmo-passwd-modified-p (elmo-passwd)
"Return non-nil if storage is modified.")
(luna-define-generic elmo-passwd-add-timer (elmo-passwd key)
"Add removing timer for KEY.
When `elmo-passwd-life-time' is nil, do nothing.")
(luna-define-generic elmo-passwd-remove-timer (elmo-passwd key)
"Remove removing timer for KEY.
It is used to remove executed timer function.")
(luna-define-generic elmo-passwd-clear-timers (elmo-passwd)
"Remove all removing timers for ELMO-PASSWD.")
(luna-define-method elmo-passwd-clear ((passwd elmo-passwd))
(elmo-passwd-clear-timers passwd)
(when (and elmo-passwd-confirm-before-clear
(elmo-passwd-modified-p passwd)
(y-or-n-p "Save password storage? "))
(elmo-passwd-save passwd)))
(luna-define-method elmo-passwd-modified-p ((passwd elmo-passwd))
nil)
(luna-define-method elmo-passwd-remove-timer ((passwd elmo-passwd) key)
(let* ((timers (elmo-passwd-timers-internal passwd))
(elt (assoc key timers)))
(elmo-passwd-set-timers-internal passwd (delq elt timers))))
(luna-define-method elmo-passwd-add-timer ((passwd elmo-passwd)
key)
(when elmo-passwd-life-time
(elmo-passwd-set-timers-internal
passwd
(cons
(cons key (run-with-timer elmo-passwd-life-time nil
#'(lambda (passwd key)
(elmo-passwd-remove passwd key)
(elmo-passwd-remove-timer passwd key))
passwd key))
(elmo-passwd-timers-internal passwd)))))
(luna-define-method elmo-passwd-clear-timers ((passwd elmo-passwd))
(dolist (elt (elmo-passwd-timers-internal passwd))
(cancel-timer (cdr elt)))
(elmo-passwd-set-timers-internal passwd nil))
;; elmo built-in password storage.
(defcustom elmo-passwd-alist-file-name "passwd"
"*ELMO Password filename."
:type 'string
:group 'elmo-passwd)
(defcustom elmo-passwd-alist-ignore-smtp-port t
"When non-nil, share SMTP password between the same host with different ports."
:type 'boolean
:group 'elmo-passwd)
(eval-and-compile
(luna-define-class elmo-passwd-alist (elmo-passwd) (filename
ignore-smtp-port
modified
alist))
(luna-define-internal-accessors 'elmo-passwd-alist))
(defun elmo-passwd-alist-generate-key (passwd key)
(if (and (elmo-passwd-alist-ignore-smtp-port-internal passwd)
(string= (car key) "SMTP"))
(apply 'format "%s:%s/%s@%s" (nreverse (cdr (reverse key))))
(apply 'format "%s:%s/%s@%s:%d" key)))
(defun elmo-passwd-alist-load-internal (passwd)
(let ((filename (elmo-passwd-alist-filename-internal passwd)))
(elmo-passwd-alist-set-alist-internal
passwd
(when (file-readable-p filename)
(with-temp-buffer
(let (insert-file-contents-pre-hook ; To avoid autoconv-xmas...
insert-file-contents-post-hook)
(insert-file-contents filename)
(goto-char (point-min))
(ignore-errors
(read (current-buffer)))))))))
(luna-define-method initialize-instance :after ((passwd elmo-passwd-alist)
&rest init-args)
(elmo-passwd-alist-set-filename-internal
passwd (expand-file-name elmo-passwd-alist-file-name elmo-msgdb-directory))
(elmo-passwd-alist-set-ignore-smtp-port-internal
passwd elmo-passwd-alist-ignore-smtp-port)
(elmo-passwd-alist-load-internal passwd)
passwd)
(luna-define-method elmo-passwd-load ((passwd elmo-passwd-alist))
(elmo-passwd-alist-load-internal passwd)
(elmo-passwd-alist-set-modified-internal passwd nil))
(luna-define-method elmo-passwd-clear :after ((passwd elmo-passwd-alist))
(let ((alist (elmo-passwd-alist-alist-internal passwd)))
(dolist (pair alist)
(when (stringp (cdr-safe pair))
(elmo-clear-string (cdr pair)))))
(elmo-passwd-alist-set-alist-internal passwd nil)
(elmo-passwd-alist-set-modified-internal passwd nil))
(luna-define-method elmo-passwd-save ((passwd elmo-passwd-alist))
(with-temp-buffer
(let ((filename (elmo-passwd-alist-filename-internal passwd))
print-length print-level)
(prin1 (elmo-passwd-alist-alist-internal passwd) (current-buffer))
(princ "\n" (current-buffer))
(if (file-writable-p filename)
(progn
(write-region (point-min) (point-max) filename nil 'no-msg)
(set-file-modes filename 384))
(message "%s is not writable." filename))))
(elmo-passwd-alist-set-modified-internal passwd nil))
(luna-define-method elmo-passwd-get ((passwd elmo-passwd-alist)
key)
;; protocol-name, user, auth-method, server, port
(let ((key-string (elmo-passwd-alist-generate-key passwd key))
(alist (elmo-passwd-alist-alist-internal passwd))
pair pass)
(unless alist
(elmo-passwd-load passwd)
(setq alist (elmo-passwd-alist-alist-internal passwd)))
(setq pair (assoc key-string alist))
(if pair
(elmo-base64-decode-string (cdr pair))
(setq pass (read-passwd (format "Password for %s: " key-string)))
;; put key and passwd at the front of the alist
(elmo-passwd-alist-set-alist-internal
passwd (cons (cons key-string (elmo-base64-encode-string pass))
alist))
(elmo-passwd-alist-set-modified-internal passwd t)
(elmo-passwd-add-timer passwd key)
pass)))
(luna-define-method elmo-passwd-remove ((passwd elmo-passwd-alist)
key)
;; protocol-name, user, auth-method, server, port
(let ((key (elmo-passwd-alist-generate-key passwd key))
(alist (elmo-passwd-alist-alist-internal passwd))
pass-cons)
(while (setq pass-cons (assoc key alist))
(unwind-protect
(elmo-clear-string (cdr pass-cons))
(elmo-passwd-alist-set-alist-internal
passwd (setq alist (delete pass-cons alist)))
(elmo-passwd-alist-set-modified-internal passwd t)))))
(luna-define-method elmo-passwd-modified-p ((passwd elmo-passwd-alist))
(elmo-passwd-alist-modified-internal passwd))
;; auth-source
(eval-when-compile
(require 'auth-source nil t))
(eval-and-compile
(luna-define-class elmo-passwd-auth-source (elmo-passwd) (savers))
(luna-define-internal-accessors 'elmo-passwd-auth-source))
(luna-define-method initialize-instance
:after ((passwd elmo-passwd-auth-source) &rest init-args)
(require 'auth-source)
passwd)
(luna-define-method elmo-passwd-clear :after ((passwd elmo-passwd-auth-source))
(elmo-passwd-auth-source-set-savers-internal passwd nil))
(luna-define-method elmo-passwd-save ((passwd elmo-passwd-auth-source))
(dolist (elt (nreverse
(elmo-passwd-auth-source-savers-internal passwd)))
(when (functionp (cdr elt))
(condition-case nil
(funcall (cdr elt)))))
(elmo-passwd-auth-source-set-savers-internal passwd nil))
(luna-define-method elmo-passwd-get ((passwd elmo-passwd-auth-source)
key)
(let* ((auth-source-creation-prompts
`((secret . ,(format "%s password for %%u@%%h:%%p? " (car key)))))
source secret)
(setq source
(car (auth-source-search :host (nth 3 key)
:port (nth 4 key)
:user (nth 1 key)
:require '(:secret)
:create t)))
(when (functionp (plist-get source :save-function))
(elmo-passwd-auth-source-set-savers-internal
passwd (cons (cons key (plist-get source :save-function))
(elmo-passwd-auth-source-savers-internal passwd)))
(elmo-passwd-add-timer passwd key))
(setq secret (plist-get source :secret))
(if (functionp secret)
(funcall secret)
secret)))
(luna-define-method elmo-passwd-remove ((passwd elmo-passwd-auth-source)
key)
(auth-source-forget+ :host (nth 3 key) :port (nth 4 key) :user (nth 1 key))
(let ((savers (elmo-passwd-auth-source-savers-internal passwd)))
(elmo-passwd-auth-source-set-savers-internal
passwd (delq (assoc key savers) savers))))
(luna-define-method elmo-passwd-modified-p ((passwd elmo-passwd-auth-source))
(elmo-passwd-auth-source-savers-internal passwd))
(provide 'elmo-passwd)
;;; elmo-passwd.el ends here
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