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Diffstat (limited to 'lisp/gnus/pgg.el')
| -rw-r--r-- | lisp/gnus/pgg.el | 453 |
1 files changed, 0 insertions, 453 deletions
diff --git a/lisp/gnus/pgg.el b/lisp/gnus/pgg.el deleted file mode 100644 index af59833c6c0..00000000000 --- a/lisp/gnus/pgg.el +++ /dev/null @@ -1,453 +0,0 @@ -;;; pgg.el --- glue for the various PGP implementations. - -;; Copyright (C) 1999, 2000, 2002, 2003, 2004, -;; 2005 Free Software Foundation, Inc. - -;; Author: Daiki Ueno <ueno@unixuser.org> -;; Created: 1999/10/28 -;; 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 2, 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: - -(require 'pgg-def) -(require 'pgg-parse) -(autoload 'run-at-time "timer") - -;; Don't merge these two `eval-when-compile's. -(eval-when-compile - (require 'cl)) - -;;; @ utility functions -;;; - -(defun pgg-invoke (func scheme &rest args) - (progn - (require (intern (format "pgg-%s" scheme))) - (apply 'funcall (intern (format "pgg-%s-%s" scheme func)) args))) - -(put 'pgg-save-coding-system 'lisp-indent-function 2) - -(defmacro pgg-save-coding-system (start end &rest body) - `(if (interactive-p) - (let ((buffer (current-buffer))) - (with-temp-buffer - (let (buffer-undo-list) - (insert-buffer-substring buffer ,start ,end) - (encode-coding-region (point-min)(point-max) - buffer-file-coding-system) - (prog1 (save-excursion ,@body) - (push nil buffer-undo-list) - (ignore-errors (undo)))))) - (save-restriction - (narrow-to-region ,start ,end) - ,@body))) - -(defun pgg-temp-buffer-show-function (buffer) - (let ((window (or (get-buffer-window buffer 'visible) - (split-window-vertically)))) - (set-window-buffer window buffer) - (shrink-window-if-larger-than-buffer window))) - -(defun pgg-display-output-buffer (start end status) - (if status - (progn - (delete-region start end) - (insert-buffer-substring pgg-output-buffer) - (decode-coding-region start (point) buffer-file-coding-system)) - (let ((temp-buffer-show-function - (function pgg-temp-buffer-show-function))) - (with-output-to-temp-buffer pgg-echo-buffer - (set-buffer standard-output) - (insert-buffer-substring pgg-errors-buffer))))) - -(defvar pgg-passphrase-cache (make-vector 7 0)) - -(defun pgg-read-passphrase (prompt &optional key) - (or (and pgg-cache-passphrase - key (setq key (pgg-truncate-key-identifier key)) - (symbol-value (intern-soft key pgg-passphrase-cache))) - (read-passwd prompt))) - -(eval-when-compile - (defmacro pgg-run-at-time-1 (time repeat function args) - (when (featurep 'xemacs) - (if (condition-case nil - (let ((delete-itimer 'delete-itimer) - (itimer-driver-start 'itimer-driver-start) - (itimer-value 'itimer-value) - (start-itimer 'start-itimer)) - (unless (or (symbol-value 'itimer-process) - (symbol-value 'itimer-timer)) - (funcall itimer-driver-start)) - ;; Check whether there is a bug to which the difference of - ;; the present time and the time when the itimer driver was - ;; woken up is subtracted from the initial itimer value. - (let* ((inhibit-quit t) - (ctime (current-time)) - (itimer-timer-last-wakeup - (prog1 - ctime - (setcar ctime (1- (car ctime))))) - (itimer-list nil) - (itimer (funcall start-itimer "pgg-run-at-time" - 'ignore 5))) - (sleep-for 0.1) ;; Accept the timeout interrupt. - (prog1 - (> (funcall itimer-value itimer) 0) - (funcall delete-itimer itimer)))) - (error nil)) - `(let ((time ,time)) - (apply #'start-itimer "pgg-run-at-time" - ,function (if time (max time 1e-9) 1e-9) - ,repeat nil t ,args))) - `(let ((time ,time) - (itimers (list nil))) - (setcar - itimers - (apply #'start-itimer "pgg-run-at-time" - (lambda (itimers repeat function &rest args) - (let ((itimer (car itimers))) - (if repeat - (progn - (set-itimer-function - itimer - (lambda (itimer repeat function &rest args) - (set-itimer-restart itimer repeat) - (set-itimer-function itimer function) - (set-itimer-function-arguments itimer args) - (apply function args))) - (set-itimer-function-arguments - itimer - (append (list itimer repeat function) args))) - (set-itimer-function - itimer - (lambda (itimer function &rest args) - (delete-itimer itimer) - (apply function args))) - (set-itimer-function-arguments - itimer - (append (list itimer function) args))))) - 1e-9 (if time (max time 1e-9) 1e-9) - nil t itimers ,repeat ,function ,args)))))) - -(eval-and-compile - (if (featurep 'xemacs) - (defun pgg-run-at-time (time repeat function &rest args) - "Emulating function run as `run-at-time'. -TIME should be nil meaning now, or a number of seconds from now. -Return an itimer object which can be used in either `delete-itimer' -or `cancel-timer'." - (pgg-run-at-time-1 time repeat function args)) - (defalias 'pgg-run-at-time 'run-at-time))) - -(defun pgg-add-passphrase-cache (key passphrase) - (setq key (pgg-truncate-key-identifier key)) - (set (intern key pgg-passphrase-cache) - passphrase) - (pgg-run-at-time pgg-passphrase-cache-expiry nil - #'pgg-remove-passphrase-cache - key)) - -(defun pgg-remove-passphrase-cache (key) - (let ((passphrase (symbol-value (intern-soft key pgg-passphrase-cache)))) - (when passphrase - (fillarray passphrase ?_) - (unintern key pgg-passphrase-cache)))) - -(defmacro pgg-convert-lbt-region (start end lbt) - `(let ((pgg-conversion-end (set-marker (make-marker) ,end))) - (goto-char ,start) - (case ,lbt - (CRLF - (while (progn - (end-of-line) - (> (marker-position pgg-conversion-end) (point))) - (insert "\r") - (forward-line 1))) - (LF - (while (re-search-forward "\r$" pgg-conversion-end t) - (replace-match "")))))) - -(put 'pgg-as-lbt 'lisp-indent-function 3) - -(defmacro pgg-as-lbt (start end lbt &rest body) - `(let ((inhibit-read-only t) - buffer-read-only - buffer-undo-list) - (pgg-convert-lbt-region ,start ,end ,lbt) - (let ((,end (point))) - ,@body) - (push nil buffer-undo-list) - (ignore-errors (undo)))) - -(put 'pgg-process-when-success 'lisp-indent-function 0) - -(defmacro pgg-process-when-success (&rest body) - `(with-current-buffer pgg-output-buffer - (if (zerop (buffer-size)) nil ,@body t))) - -(defalias 'pgg-make-temp-file - (if (fboundp 'make-temp-file) - 'make-temp-file - (lambda (prefix &optional dir-flag) - (let ((file (expand-file-name - (make-temp-name prefix) - (if (fboundp 'temp-directory) - (temp-directory) - temporary-file-directory)))) - (if dir-flag - (make-directory file)) - file)))) - -;;; @ interface functions -;;; - -;;;###autoload -(defun pgg-encrypt-region (start end rcpts &optional sign) - "Encrypt the current region between START and END for RCPTS. -If optional argument SIGN is non-nil, do a combined sign and encrypt." - (interactive - (list (region-beginning)(region-end) - (split-string (read-string "Recipients: ") "[ \t,]+"))) - (let ((status - (pgg-save-coding-system start end - (pgg-invoke "encrypt-region" (or pgg-scheme pgg-default-scheme) - (point-min) (point-max) rcpts sign)))) - (when (interactive-p) - (pgg-display-output-buffer start end status)) - status)) - -;;;###autoload -(defun pgg-encrypt (rcpts &optional sign start end) - "Encrypt the current buffer for RCPTS. -If optional argument SIGN is non-nil, do a combined sign and encrypt. -If optional arguments START and END are specified, only encrypt within -the region." - (interactive (list (split-string (read-string "Recipients: ") "[ \t,]+"))) - (let* ((start (or start (point-min))) - (end (or end (point-max))) - (status (pgg-encrypt-region start end rcpts sign))) - (when (interactive-p) - (pgg-display-output-buffer start end status)) - status)) - -;;;###autoload -(defun pgg-decrypt-region (start end) - "Decrypt the current region between START and END." - (interactive "r") - (let* ((buf (current-buffer)) - (status - (pgg-save-coding-system start end - (pgg-invoke "decrypt-region" (or pgg-scheme pgg-default-scheme) - (point-min) (point-max))))) - (when (interactive-p) - (pgg-display-output-buffer start end status)) - status)) - -;;;###autoload -(defun pgg-decrypt (&optional start end) - "Decrypt the current buffer. -If optional arguments START and END are specified, only decrypt within -the region." - (interactive "") - (let* ((start (or start (point-min))) - (end (or end (point-max))) - (status (pgg-decrypt-region start end))) - (when (interactive-p) - (pgg-display-output-buffer start end status)) - status)) - -;;;###autoload -(defun pgg-sign-region (start end &optional cleartext) - "Make the signature from text between START and END. -If the optional 3rd argument CLEARTEXT is non-nil, it does not create -a detached signature. -If this function is called interactively, CLEARTEXT is enabled -and the the output is displayed." - (interactive "r") - (let ((status (pgg-save-coding-system start end - (pgg-invoke "sign-region" (or pgg-scheme pgg-default-scheme) - (point-min) (point-max) - (or (interactive-p) cleartext))))) - (when (interactive-p) - (pgg-display-output-buffer start end status)) - status)) - -;;;###autoload -(defun pgg-sign (&optional cleartext start end) - "Sign the current buffer. -If the optional argument CLEARTEXT is non-nil, it does not create a -detached signature. -If optional arguments START and END are specified, only sign data -within the region. -If this function is called interactively, CLEARTEXT is enabled -and the the output is displayed." - (interactive "") - (let* ((start (or start (point-min))) - (end (or end (point-max))) - (status (pgg-sign-region start end (or (interactive-p) cleartext)))) - (when (interactive-p) - (pgg-display-output-buffer start end status)) - status)) - -;;;###autoload -(defun pgg-verify-region (start end &optional signature fetch) - "Verify the current region between START and END. -If the optional 3rd argument SIGNATURE is non-nil, it is treated as -the detached signature of the current region. - -If the optional 4th argument FETCH is non-nil, we attempt to fetch the -signer's public key from `pgg-default-keyserver-address'." - (interactive "r") - (let* ((packet - (if (null signature) nil - (with-temp-buffer - (buffer-disable-undo) - (if (fboundp 'set-buffer-multibyte) - (set-buffer-multibyte nil)) - (insert-file-contents signature) - (cdr (assq 2 (pgg-decode-armor-region - (point-min)(point-max))))))) - (key (cdr (assq 'key-identifier packet))) - status keyserver) - (and (stringp key) - pgg-query-keyserver - (setq key (concat "0x" (pgg-truncate-key-identifier key))) - (null (pgg-lookup-key key)) - (or fetch (interactive-p)) - (y-or-n-p (format "Key %s not found; attempt to fetch? " key)) - (setq keyserver - (or (cdr (assq 'preferred-key-server packet)) - pgg-default-keyserver-address)) - (pgg-fetch-key keyserver key)) - (setq status - (pgg-save-coding-system start end - (pgg-invoke "verify-region" (or pgg-scheme pgg-default-scheme) - (point-min) (point-max) signature))) - (when (interactive-p) - (let ((temp-buffer-show-function - (function pgg-temp-buffer-show-function))) - (with-output-to-temp-buffer pgg-echo-buffer - (set-buffer standard-output) - (insert-buffer-substring (if status pgg-output-buffer - pgg-errors-buffer))))) - status)) - -;;;###autoload -(defun pgg-verify (&optional signature fetch start end) - "Verify the current buffer. -If the optional argument SIGNATURE is non-nil, it is treated as -the detached signature of the current region. -If the optional argument FETCH is non-nil, we attempt to fetch the -signer's public key from `pgg-default-keyserver-address'. -If optional arguments START and END are specified, only verify data -within the region." - (interactive "") - (let* ((start (or start (point-min))) - (end (or end (point-max))) - (status (pgg-verify-region start end signature fetch))) - (when (interactive-p) - (let ((temp-buffer-show-function - (function pgg-temp-buffer-show-function))) - (with-output-to-temp-buffer pgg-echo-buffer - (set-buffer standard-output) - (insert-buffer-substring (if status pgg-output-buffer - pgg-errors-buffer))))) - status)) - -;;;###autoload -(defun pgg-insert-key () - "Insert the ASCII armored public key." - (interactive) - (pgg-invoke "insert-key" (or pgg-scheme pgg-default-scheme))) - -;;;###autoload -(defun pgg-snarf-keys-region (start end) - "Import public keys in the current region between START and END." - (interactive "r") - (pgg-save-coding-system start end - (pgg-invoke "snarf-keys-region" (or pgg-scheme pgg-default-scheme) - start end))) - -;;;###autoload -(defun pgg-snarf-keys () - "Import public keys in the current buffer." - (interactive "") - (pgg-snarf-keys-region (point-min) (point-max))) - -(defun pgg-lookup-key (string &optional type) - (pgg-invoke "lookup-key" (or pgg-scheme pgg-default-scheme) string type)) - -(defvar pgg-insert-url-function (function pgg-insert-url-with-w3)) - -(defun pgg-insert-url-with-w3 (url) - (ignore-errors - (require 'url) - (let (buffer-file-name) - (url-insert-file-contents url)))) - -(defvar pgg-insert-url-extra-arguments nil) -(defvar pgg-insert-url-program nil) - -(defun pgg-insert-url-with-program (url) - (let ((args (copy-sequence pgg-insert-url-extra-arguments)) - process) - (insert - (with-temp-buffer - (setq process - (apply #'start-process " *PGG url*" (current-buffer) - pgg-insert-url-program (nconc args (list url)))) - (set-process-sentinel process #'ignore) - (while (eq 'run (process-status process)) - (accept-process-output process 5)) - (delete-process process) - (if (and process (eq 'run (process-status process))) - (interrupt-process process)) - (buffer-string))))) - -(defun pgg-fetch-key (keyserver key) - "Attempt to fetch a KEY from KEYSERVER for addition to PGP or GnuPG keyring." - (with-current-buffer (get-buffer-create pgg-output-buffer) - (buffer-disable-undo) - (erase-buffer) - (let ((proto (if (string-match "^[a-zA-Z\\+\\.\\\\-]+:" keyserver) - (substring keyserver 0 (1- (match-end 0)))))) - (save-excursion - (funcall pgg-insert-url-function - (if proto keyserver - (format "http://%s:11371/pks/lookup?op=get&search=%s" - keyserver key)))) - (when (re-search-forward "^-+BEGIN" nil 'last) - (delete-region (point-min) (match-beginning 0)) - (when (re-search-forward "^-+END" nil t) - (delete-region (progn (end-of-line) (point)) - (point-max))) - (insert "\n") - (with-temp-buffer - (insert-buffer-substring pgg-output-buffer) - (pgg-snarf-keys-region (point-min)(point-max))))))) - - -(provide 'pgg) - -;;; arch-tag: 9cc705dd-1e6a-4c90-8dce-c3561f9a2cf4 -;;; pgg.el ends here |