;;; mml-sec.el --- A package with security functions for MML documents
-;; Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+;; Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
;; Author: Simon Josefsson <simon@josefsson.org>
-;; This file is not part of GNU Emacs, but the same permissions apply.
+
+;; 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
;;; Code:
-(require 'mml2015)
-(require 'mml1991)
(require 'mml-smime)
(eval-when-compile (require 'cl))
+(autoload 'mml2015-sign "mml2015")
+(autoload 'mml2015-encrypt "mml2015")
+(autoload 'mml1991-sign "mml1991")
+(autoload 'mml1991-encrypt "mml1991")
+(autoload 'message-goto-body "message")
+(autoload 'mml-insert-tag "mml")
(defvar mml-sign-alist
'(("smime" mml-smime-sign-buffer mml-smime-sign-query)
("pgp" mml-pgp-sign-buffer list)
+ ("pgpauto" mml-pgpauto-sign-buffer list)
("pgpmime" mml-pgpmime-sign-buffer list))
"Alist of MIME signer functions.")
-(defvar mml-default-sign-method (caar mml-sign-alist)
- "Default sign method.")
+(defcustom mml-default-sign-method "pgpmime"
+ "Default sign method.
+The string must have an entry in `mml-sign-alist'."
+ :type '(choice (const "smime")
+ (const "pgp")
+ (const "pgpauto")
+ (const "pgpmime")
+ string)
+ :group 'message)
(defvar mml-encrypt-alist
'(("smime" mml-smime-encrypt-buffer mml-smime-encrypt-query)
("pgp" mml-pgp-encrypt-buffer list)
+ ("pgpauto" mml-pgpauto-sign-buffer list)
("pgpmime" mml-pgpmime-encrypt-buffer list))
"Alist of MIME encryption functions.")
-(defvar mml-default-encrypt-method (caar mml-encrypt-alist)
- "Default encryption method.")
+(defcustom mml-default-encrypt-method "pgpmime"
+ "Default encryption method.
+The string must have an entry in `mml-encrypt-alist'."
+ :type '(choice (const "smime")
+ (const "pgp")
+ (const "pgpauto")
+ (const "pgpmime")
+ string)
+ :group 'message)
+
+(defcustom mml-signencrypt-style-alist
+ '(("smime" separate)
+ ("pgp" combined)
+ ("pgpauto" combined)
+ ("pgpmime" combined))
+ "Alist specifying if `signencrypt' results in two separate operations or not.
+The first entry indicates the MML security type, valid entries include
+the strings \"smime\", \"pgp\", and \"pgpmime\". The second entry is
+a symbol `separate' or `combined' where `separate' means that MML signs
+and encrypt messages in a two step process, and `combined' means that MML
+signs and encrypt the message in one step.
+
+Note that the output generated by using a `combined' mode is NOT
+understood by all PGP implementations, in particular PGP version
+2 does not support it! See Info node `(message)Security' for
+details."
+ :type '(repeat (list (choice (const :tag "S/MIME" "smime")
+ (const :tag "PGP" "pgp")
+ (const :tag "PGP/MIME" "pgpmime")
+ (string :tag "User defined"))
+ (choice (const :tag "Separate" separate)
+ (const :tag "Combined" combined)))))
+
+;;; Configuration/helper functions
+
+(defun mml-signencrypt-style (method &optional style)
+ "Function for setting/getting the signencrypt-style used. Takes two
+arguments, the method (e.g. \"pgp\") and optionally the mode
+\(e.g. combined). If the mode is omitted, the current value is returned.
+
+For example, if you prefer to use combined sign & encrypt with
+smime, putting the following in your Gnus startup file will
+enable that behavior:
+
+\(mml-set-signencrypt-style \"smime\" combined)
+
+You can also customize or set `mml-signencrypt-style-alist' instead."
+ (let ((style-item (assoc method mml-signencrypt-style-alist)))
+ (if style-item
+ (if (or (eq style 'separate)
+ (eq style 'combined))
+ ;; valid style setting?
+ (setf (second style-item) style)
+ ;; otherwise, just return the current value
+ (second style-item))
+ (message "Warning, attempt to set invalid signencrypt style"))))
;;; Security functions
(or (mml-smime-sign cont)
(error "Signing failed... inspect message logs for errors")))
-(defun mml-smime-encrypt-buffer (cont)
+(defun mml-smime-encrypt-buffer (cont &optional sign)
+ (when sign
+ (message "Combined sign and encrypt S/MIME not support yet")
+ (sit-for 1))
(or (mml-smime-encrypt cont)
(error "Encryption failed... inspect message logs for errors")))
(or (mml1991-sign cont)
(error "Signing failed... inspect message logs for errors")))
-(defun mml-pgp-encrypt-buffer (cont)
- (or (mml1991-encrypt cont)
+(defun mml-pgp-encrypt-buffer (cont &optional sign)
+ (or (mml1991-encrypt cont sign)
(error "Encryption failed... inspect message logs for errors")))
(defun mml-pgpmime-sign-buffer (cont)
(or (mml2015-sign cont)
(error "Signing failed... inspect message logs for errors")))
-(defun mml-pgpmime-encrypt-buffer (cont)
- (or (mml2015-encrypt cont)
+(defun mml-pgpmime-encrypt-buffer (cont &optional sign)
+ (or (mml2015-encrypt cont sign)
+ (error "Encryption failed... inspect message logs for errors")))
+
+(defun mml-pgpauto-sign-buffer (cont)
+ (message-goto-body)
+ (or (if (re-search-backward "Content-Type: *multipart/.*" nil t) ; there must be a better way...
+ (mml2015-sign cont)
+ (mml1991-sign cont))
+ (error "Encryption failed... inspect message logs for errors")))
+
+(defun mml-pgpauto-encrypt-buffer (cont &optional sign)
+ (message-goto-body)
+ (or (if (re-search-backward "Content-Type: *multipart/.*" nil t) ; there must be a better way...
+ (mml2015-encrypt cont sign)
+ (mml1991-encrypt cont sign))
(error "Encryption failed... inspect message logs for errors")))
(defun mml-secure-part (method &optional sign)
(interactive)
(mml-secure-part "pgp" 'sign))
+(defun mml-secure-sign-pgpauto ()
+ "Add MML tags to PGP-auto sign this MML part."
+ (interactive)
+ (mml-secure-part "pgpauto" 'sign))
+
(defun mml-secure-sign-pgpmime ()
"Add MML tags to PGP/MIME sign this MML part."
(interactive)
(save-excursion
(goto-char (point-max))
(when (re-search-backward "^<#secure.*>\n" nil t)
- (kill-region (match-beginning 0) (match-end 0)))))
+ (delete-region (match-beginning 0) (match-end 0)))))
(defun mml-secure-message-sign-smime ()
"Add MML tag to encrypt/sign the entire message."
(interactive)
(mml-secure-message "pgpmime" 'sign))
+(defun mml-secure-message-sign-pgpauto ()
+ "Add MML tag to encrypt/sign the entire message."
+ (interactive)
+ (mml-secure-message "pgpauto" 'sign))
+
(defun mml-secure-message-encrypt-smime (&optional dontsign)
"Add MML tag to encrypt and sign the entire message.
If called with a prefix argument, only encrypt (do NOT sign)."
(interactive "P")
(mml-secure-message "smime" (if dontsign 'encrypt 'signencrypt)))
-;;; NOTE: this should be switched to use signencrypt
-;;; once it does something sensible
(defun mml-secure-message-encrypt-pgp (&optional dontsign)
"Add MML tag to encrypt and sign the entire message.
If called with a prefix argument, only encrypt (do NOT sign)."
(interactive "P")
- (mml-secure-message "pgp" (if dontsign 'encrypt 'encrypt)))
+ (mml-secure-message "pgp" (if dontsign 'encrypt 'signencrypt)))
-;;; NOTE: this should be switched to use signencrypt
-;;; once it does something sensible
(defun mml-secure-message-encrypt-pgpmime (&optional dontsign)
"Add MML tag to encrypt and sign the entire message.
If called with a prefix argument, only encrypt (do NOT sign)."
(interactive "P")
- (mml-secure-message "pgpmime" (if dontsign 'encrypt 'encrypt)))
+ (mml-secure-message "pgpmime" (if dontsign 'encrypt 'signencrypt)))
+
+(defun mml-secure-message-encrypt-pgpauto (&optional dontsign)
+ "Add MML tag to encrypt and sign the entire message.
+If called with a prefix argument, only encrypt (do NOT sign)."
+ (interactive "P")
+ (mml-secure-message "pgpauto" (if dontsign 'encrypt 'signencrypt)))
(provide 'mml-sec)
+;;; arch-tag: 111c56e7-df5e-4287-87d7-93ed2911ec6c
;;; mml-sec.el ends here
projects / gnus / blobdiff