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emacs/lisp/gnus/mml1991.el
Dan Nicolaescu 9efa445fbe * smime.el (from): 
* rfc2047.el (message-posting-charset):
* qp.el (mm-use-ultra-safe-encoding):
* pop3.el (parse-time-months):
* nnrss.el (mm-text-html-renderer, mm-text-html-washer-alist):
* nnml.el (files):
* nnheader.el (gnus-newsgroup-name, nnheader-file-coding-system)
(jka-compr-compression-info-list, ange-ftp-path-format)
(efs-path-regexp):
* nndiary.el (files):
* mml2015.el (mc-default-scheme, mc-schemes, pgg-default-user-id)
(pgg-errors-buffer, pgg-output-buffer, epg-user-id-alist)
(epg-digest-algorithm-alist, inhibit-redisplay)
(password-cache-expiry):
* mml1991.el (pgg-default-user-id, pgg-errors-buffer)
(pgg-output-buffer, password-cache-expiry):
* mml.el (mml-dnd-protocol-alist, ange-ftp-name-format)
(efs-path-regexp):
* mml-smime.el (epg-user-id-alist, epg-digest-algorithm-alist)
(inhibit-redisplay):
* mm-uu.el (file-name, start-point, end-point, entry)
(gnus-newsgroup-name, gnus-newsgroup-charset):
* mm-util.el (mm-mime-mule-charset-alist, latin-unity-coding-systems)
(latin-unity-ucs-list):
* mm-bodies.el (mm-uu-yenc-decode-function, mm-uu-decode-function)
(mm-uu-binhex-decode-function):
* message.el (gnus-message-group-art, gnus-list-identifiers, )
(rmail-enable-mime-composing, gnus-local-organization)
(gnus-post-method, gnus-select-method, gnus-active-hashtb)
(gnus-read-active-file, facemenu-add-face-function)
(facemenu-remove-face-function, gnus-article-decoded-p)
(tool-bar-mode):
* mail-source.el (display-time-mail-function):
* gnus-util.el (nnmail-pathname-coding-system)
(nnmail-active-file-coding-system, gnus-emphasize-whitespace-regexp)
(gnus-original-article-buffer, gnus-user-agent)
(rmail-default-rmail-file, mm-text-coding-system, tool-bar-mode)
(xemacs-codename, sxemacs-codename, emacs-program-version):
* gnus-sum.el (tool-bar-mode, gnus-tmp-header, number):
* gnus-start.el (gnus-agent-covered-methods)
(gnus-agent-file-loading-local, gnus-agent-file-loading-cache)
(gnus-current-headers, gnus-thread-indent-array, gnus-newsgroup-name)
(gnus-newsgroup-headers, gnus-group-list-mode)
(gnus-group-mark-positions, gnus-newsgroup-data)
(gnus-newsgroup-unreads, nnoo-state-alist)
(gnus-current-select-method, mail-sources)
(nnmail-scan-directory-mail-source-once, nnmail-split-history)
(nnmail-spool-file, gnus-cache-active-hashtb):
* gnus-mh.el (mh-lib-progs):
* gnus-ems.el (gnus-tmp-unread, gnus-tmp-replied)
(gnus-tmp-score-char, gnus-tmp-indentation, gnus-tmp-opening-bracket)
(gnus-tmp-lines, gnus-tmp-name, gnus-tmp-closing-bracket)
(gnus-tmp-subject-or-nil, gnus-check-before-posting, gnus-mouse-face)
(gnus-group-buffer):
* gnus-cite.el (font-lock-defaults-computed, font-lock-keywords)
(font-lock-set-defaults):
* gnus-art.el (tool-bar-map, w3m-minor-mode-map)
(gnus-face-properties-alist, charset, gnus-summary-article-menu)
(gnus-summary-post-menu, total-parts, type, condition, length):
* gnus-agent.el (gnus-agent-read-agentview):
* flow-fill.el (show-trailing-whitespace):
* gnus-group.el (tool-bar-mode, nnrss-group-alist): Remove unnecessary
eval-and-compile wrappers for byte compiler pacifiers.

* mm-view.el (mm-inline-image-xemacs): Only do something for XEmacs.
(mm-display-inline-fontify): Check for featurep 'xemacs not
extent-list.

* mm-decode.el (mm-display-external): Check for featurep 'xemacs not
itimer-list.
(mm-create-image-xemacs): Only do something for XEmacs.
(mm-image-fit-p): Check for featurep 'xemacs not glyph-width.

* mm-util.el (mm-find-buffer-file-coding-system): Add check for XEmacs.

* gnus-registry.el (gnus-adaptive-word-syntax-table):
* gnus-fun.el (gnus-face-properties-alist): Pacify byte compiler.

* textmodes/reftex-dcr.el (reftex-start-itimer-once): Add check
for XEmacs.

* calc/calc-menu.el (calc-mode-map): Pacify byte compiler.

* doc-view.el (doc-view-resolution): Add missing :group.
2007-11-16 16:50:35 +00:00

508 lines
16 KiB
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;;; mml1991.el --- Old PGP message format (RFC 1991) support for MML
;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
;; 2005, 2006, 2007 Free Software Foundation, Inc.
;; Author: Sascha Ldecke <sascha@meta-x.de>,
;; Simon Josefsson <simon@josefsson.org> (Mailcrypt interface, Gnus glue)
;; Keywords PGP
;; 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, 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
(eval-when-compile
(require 'cl)
(require 'mm-util))
(require 'mml-sec)
(defvar mc-pgp-always-sign)
(autoload 'quoted-printable-decode-region "qp")
(autoload 'quoted-printable-encode-region "qp")
(defvar mml1991-use mml2015-use
"The package used for PGP.")
(defvar mml1991-function-alist
'((mailcrypt mml1991-mailcrypt-sign
mml1991-mailcrypt-encrypt)
(gpg mml1991-gpg-sign
mml1991-gpg-encrypt)
(pgg mml1991-pgg-sign
mml1991-pgg-encrypt)
(epg mml1991-epg-sign
mml1991-epg-encrypt))
"Alist of PGP functions.")
(defvar mml1991-verbose mml-secure-verbose
"If non-nil, ask the user about the current operation more verbosely.")
(defvar mml1991-cache-passphrase mml-secure-cache-passphrase
"If t, cache passphrase.")
(defvar mml1991-passphrase-cache-expiry mml-secure-passphrase-cache-expiry
"How many seconds the passphrase is cached.
Whether the passphrase is cached at all is controlled by
`mml1991-cache-passphrase'.")
(defvar mml1991-signers nil
"A list of your own key ID which will be used to sign a message.")
(defvar mml1991-encrypt-to-self nil
"If t, add your own key ID to recipient list when encryption.")
;;; mailcrypt wrapper
(eval-and-compile
(autoload 'mc-sign-generic "mc-toplev"))
(defvar mml1991-decrypt-function 'mailcrypt-decrypt)
(defvar mml1991-verify-function 'mailcrypt-verify)
(defun mml1991-mailcrypt-sign (cont)
(let ((text (current-buffer))
headers signature
(result-buffer (get-buffer-create "*GPG Result*")))
;; Save MIME Content[^ ]+: headers from signing
(goto-char (point-min))
(while (looking-at "^Content[^ ]+:") (forward-line))
(unless (bobp)
(setq headers (buffer-string))
(delete-region (point-min) (point)))
(goto-char (point-max))
(unless (bolp)
(insert "\n"))
(quoted-printable-decode-region (point-min) (point-max))
(with-temp-buffer
(setq signature (current-buffer))
(insert-buffer-substring text)
(unless (mc-sign-generic (message-options-get 'message-sender)
nil nil nil nil)
(unless (> (point-max) (point-min))
(pop-to-buffer result-buffer)
(error "Sign error")))
(goto-char (point-min))
(while (re-search-forward "\r+$" nil t)
(replace-match "" t t))
(quoted-printable-encode-region (point-min) (point-max))
(set-buffer text)
(delete-region (point-min) (point-max))
(if headers (insert headers))
(insert "\n")
(insert-buffer-substring signature)
(goto-char (point-max)))))
(defun mml1991-mailcrypt-encrypt (cont &optional sign)
(let ((text (current-buffer))
(mc-pgp-always-sign
(or mc-pgp-always-sign
sign
(eq t (or (message-options-get 'message-sign-encrypt)
(message-options-set
'message-sign-encrypt
(or (y-or-n-p "Sign the message? ")
'not))))
'never))
cipher
(result-buffer (get-buffer-create "*GPG Result*")))
;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
(goto-char (point-min))
(while (looking-at "^Content[^ ]+:") (forward-line))
(unless (bobp)
(delete-region (point-min) (point)))
(mm-with-unibyte-current-buffer
(with-temp-buffer
(setq cipher (current-buffer))
(insert-buffer-substring text)
(unless (mc-encrypt-generic
(or
(message-options-get 'message-recipients)
(message-options-set 'message-recipients
(read-string "Recipients: ")))
nil
(point-min) (point-max)
(message-options-get 'message-sender)
'sign)
(unless (> (point-max) (point-min))
(pop-to-buffer result-buffer)
(error "Encrypt error")))
(goto-char (point-min))
(while (re-search-forward "\r+$" nil t)
(replace-match "" t t))
(set-buffer text)
(delete-region (point-min) (point-max))
;;(insert "Content-Type: application/pgp-encrypted\n\n")
;;(insert "Version: 1\n\n")
(insert "\n")
(insert-buffer-substring cipher)
(goto-char (point-max))))))
;;; gpg wrapper
(eval-and-compile
(autoload 'gpg-sign-cleartext "gpg"))
(defun mml1991-gpg-sign (cont)
(let ((text (current-buffer))
headers signature
(result-buffer (get-buffer-create "*GPG Result*")))
;; Save MIME Content[^ ]+: headers from signing
(goto-char (point-min))
(while (looking-at "^Content[^ ]+:") (forward-line))
(unless (bobp)
(setq headers (buffer-string))
(delete-region (point-min) (point)))
(goto-char (point-max))
(unless (bolp)
(insert "\n"))
(quoted-printable-decode-region (point-min) (point-max))
(with-temp-buffer
(unless (gpg-sign-cleartext text (setq signature (current-buffer))
result-buffer
nil
(message-options-get 'message-sender))
(unless (> (point-max) (point-min))
(pop-to-buffer result-buffer)
(error "Sign error")))
(goto-char (point-min))
(while (re-search-forward "\r+$" nil t)
(replace-match "" t t))
(quoted-printable-encode-region (point-min) (point-max))
(set-buffer text)
(delete-region (point-min) (point-max))
(if headers (insert headers))
(insert "\n")
(insert-buffer-substring signature)
(goto-char (point-max)))))
(defun mml1991-gpg-encrypt (cont &optional sign)
(let ((text (current-buffer))
cipher
(result-buffer (get-buffer-create "*GPG Result*")))
;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
(goto-char (point-min))
(while (looking-at "^Content[^ ]+:") (forward-line))
(unless (bobp)
(delete-region (point-min) (point)))
(mm-with-unibyte-current-buffer
(with-temp-buffer
(flet ((gpg-encrypt-func
(sign plaintext ciphertext result recipients &optional
passphrase sign-with-key armor textmode)
(if sign
(gpg-sign-encrypt
plaintext ciphertext result recipients passphrase
sign-with-key armor textmode)
(gpg-encrypt
plaintext ciphertext result recipients passphrase
armor textmode))))
(unless (gpg-encrypt-func
sign
text (setq cipher (current-buffer))
result-buffer
(split-string
(or
(message-options-get 'message-recipients)
(message-options-set 'message-recipients
(read-string "Recipients: ")))
"[ \f\t\n\r\v,]+")
nil
(message-options-get 'message-sender)
t t) ; armor & textmode
(unless (> (point-max) (point-min))
(pop-to-buffer result-buffer)
(error "Encrypt error"))))
(goto-char (point-min))
(while (re-search-forward "\r+$" nil t)
(replace-match "" t t))
(set-buffer text)
(delete-region (point-min) (point-max))
;;(insert "Content-Type: application/pgp-encrypted\n\n")
;;(insert "Version: 1\n\n")
(insert "\n")
(insert-buffer-substring cipher)
(goto-char (point-max))))))
;; pgg wrapper
(defvar pgg-default-user-id)
(defvar pgg-errors-buffer)
(defvar pgg-output-buffer)
(defun mml1991-pgg-sign (cont)
(let ((pgg-text-mode t)
(pgg-default-user-id (or (message-options-get 'mml-sender)
pgg-default-user-id))
headers cte)
;; Don't sign headers.
(goto-char (point-min))
(when (re-search-forward "^$" nil t)
(setq headers (buffer-substring (point-min) (point)))
(save-restriction
(narrow-to-region (point-min) (point))
(setq cte (mail-fetch-field "content-transfer-encoding")))
(forward-line 1)
(delete-region (point-min) (point))
(when cte
(setq cte (intern (downcase cte)))
(mm-decode-content-transfer-encoding cte)))
(unless (pgg-sign-region (point-min) (point-max) t)
(pop-to-buffer pgg-errors-buffer)
(error "Encrypt error"))
(delete-region (point-min) (point-max))
(mm-with-unibyte-current-buffer
(insert-buffer-substring pgg-output-buffer)
(goto-char (point-min))
(while (re-search-forward "\r+$" nil t)
(replace-match "" t t))
(when cte
(mm-encode-content-transfer-encoding cte))
(goto-char (point-min))
(when headers
(insert headers))
(insert "\n"))
t))
(defun mml1991-pgg-encrypt (cont &optional sign)
(goto-char (point-min))
(when (re-search-forward "^$" nil t)
(let ((cte (save-restriction
(narrow-to-region (point-min) (point))
(mail-fetch-field "content-transfer-encoding"))))
;; Strip MIME headers since it will be ASCII armoured.
(forward-line 1)
(delete-region (point-min) (point))
(when cte
(mm-decode-content-transfer-encoding (intern (downcase cte))))))
(unless (let ((pgg-text-mode t))
(pgg-encrypt-region
(point-min) (point-max)
(split-string
(or
(message-options-get 'message-recipients)
(message-options-set 'message-recipients
(read-string "Recipients: ")))
"[ \f\t\n\r\v,]+")
sign))
(pop-to-buffer pgg-errors-buffer)
(error "Encrypt error"))
(delete-region (point-min) (point-max))
(insert "\n")
(insert-buffer-substring pgg-output-buffer)
t)
;; epg wrapper
(defvar epg-user-id-alist)
(defvar password-cache-expiry)
(eval-and-compile
(autoload 'epg-make-context "epg")
(autoload 'epg-passphrase-callback-function "epg")
(autoload 'epa-select-keys "epa")
(autoload 'epg-list-keys "epg")
(autoload 'epg-context-set-armor "epg")
(autoload 'epg-context-set-textmode "epg")
(autoload 'epg-context-set-signers "epg")
(autoload 'epg-context-set-passphrase-callback "epg")
(autoload 'epg-sign-string "epg")
(autoload 'epg-encrypt-string "epg")
(autoload 'epg-configuration "epg-config")
(autoload 'epg-expand-group "epg-config")
(autoload 'password-read "password")
(autoload 'password-cache-add "password")
(autoload 'password-cache-remove "password"))
(defvar mml1991-epg-secret-key-id-list nil)
(defun mml1991-epg-passphrase-callback (context key-id ignore)
(if (eq key-id 'SYM)
(epg-passphrase-callback-function context key-id nil)
(let* ((entry (assoc key-id epg-user-id-alist))
(passphrase
(password-read
(format "GnuPG passphrase for %s: "
(if entry
(cdr entry)
key-id))
(if (eq key-id 'PIN)
"PIN"
key-id))))
(when passphrase
(let ((password-cache-expiry mml1991-passphrase-cache-expiry))
(password-cache-add key-id passphrase))
(setq mml1991-epg-secret-key-id-list
(cons key-id mml1991-epg-secret-key-id-list))
(copy-sequence passphrase)))))
(defun mml1991-epg-sign (cont)
(let ((context (epg-make-context))
headers cte signers signature)
(if mml1991-verbose
(setq signers (epa-select-keys context "Select keys for signing.
If no one is selected, default secret key is used. "
mml1991-signers t))
(if mml1991-signers
(setq signers (mapcar (lambda (name)
(car (epg-list-keys context name t)))
mml1991-signers))))
(epg-context-set-armor context t)
(epg-context-set-textmode context t)
(epg-context-set-signers context signers)
(if mml1991-cache-passphrase
(epg-context-set-passphrase-callback
context
#'mml1991-epg-passphrase-callback))
;; Don't sign headers.
(goto-char (point-min))
(when (re-search-forward "^$" nil t)
(setq headers (buffer-substring (point-min) (point)))
(save-restriction
(narrow-to-region (point-min) (point))
(setq cte (mail-fetch-field "content-transfer-encoding")))
(forward-line 1)
(delete-region (point-min) (point))
(when cte
(setq cte (intern (downcase cte)))
(mm-decode-content-transfer-encoding cte)))
(condition-case error
(setq signature (epg-sign-string context (buffer-string) 'clear)
mml1991-epg-secret-key-id-list nil)
(error
(while mml1991-epg-secret-key-id-list
(password-cache-remove (car mml1991-epg-secret-key-id-list))
(setq mml1991-epg-secret-key-id-list
(cdr mml1991-epg-secret-key-id-list)))
(signal (car error) (cdr error))))
(delete-region (point-min) (point-max))
(mm-with-unibyte-current-buffer
(insert signature)
(goto-char (point-min))
(while (re-search-forward "\r+$" nil t)
(replace-match "" t t))
(when cte
(mm-encode-content-transfer-encoding cte))
(goto-char (point-min))
(when headers
(insert headers))
(insert "\n"))
t))
(defun mml1991-epg-encrypt (cont &optional sign)
(goto-char (point-min))
(when (re-search-forward "^$" nil t)
(let ((cte (save-restriction
(narrow-to-region (point-min) (point))
(mail-fetch-field "content-transfer-encoding"))))
;; Strip MIME headers since it will be ASCII armoured.
(forward-line 1)
(delete-region (point-min) (point))
(when cte
(mm-decode-content-transfer-encoding (intern (downcase cte))))))
(let ((context (epg-make-context))
(recipients
(if (message-options-get 'message-recipients)
(split-string
(message-options-get 'message-recipients)
"[ \f\t\n\r\v,]+")))
cipher signers config)
;; We should remove this check if epg-0.0.6 is released.
(if (and (condition-case nil
(require 'epg-config)
(error))
(functionp #'epg-expand-group))
(setq config (epg-configuration)
recipients
(apply #'nconc
(mapcar (lambda (recipient)
(or (epg-expand-group config recipient)
(list recipient)))
recipients))))
(if mml1991-verbose
(setq recipients
(epa-select-keys context "Select recipients for encryption.
If no one is selected, symmetric encryption will be performed. "
recipients))
(setq recipients
(delq nil (mapcar (lambda (name)
(car (epg-list-keys context name)))
recipients))))
(if mml1991-encrypt-to-self
(if mml1991-signers
(setq recipients
(nconc recipients
(mapcar (lambda (name)
(car (epg-list-keys context name)))
mml1991-signers)))
(error "mml1991-signers not set")))
(when sign
(if mml1991-verbose
(setq signers (epa-select-keys context "Select keys for signing.
If no one is selected, default secret key is used. "
mml1991-signers t))
(if mml1991-signers
(setq signers (mapcar (lambda (name)
(car (epg-list-keys context name t)))
mml1991-signers))))
(epg-context-set-signers context signers))
(epg-context-set-armor context t)
(epg-context-set-textmode context t)
(if mml1991-cache-passphrase
(epg-context-set-passphrase-callback
context
#'mml1991-epg-passphrase-callback))
(condition-case error
(setq cipher
(epg-encrypt-string context (buffer-string) recipients sign)
mml1991-epg-secret-key-id-list nil)
(error
(while mml1991-epg-secret-key-id-list
(password-cache-remove (car mml1991-epg-secret-key-id-list))
(setq mml1991-epg-secret-key-id-list
(cdr mml1991-epg-secret-key-id-list)))
(signal (car error) (cdr error))))
(delete-region (point-min) (point-max))
(insert "\n" cipher))
t)
;;;###autoload
(defun mml1991-encrypt (cont &optional sign)
(let ((func (nth 2 (assq mml1991-use mml1991-function-alist))))
(if func
(funcall func cont sign)
(error "Cannot find encrypt function"))))
;;;###autoload
(defun mml1991-sign (cont)
(let ((func (nth 1 (assq mml1991-use mml1991-function-alist))))
(if func
(funcall func cont)
(error "Cannot find sign function"))))
(provide 'mml1991)
;; Local Variables:
;; coding: iso-8859-1
;; End:
;;; arch-tag: e542be18-ab28-4393-9b33-97fe9cf30706
;;; mml1991.el ends here
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