Import Oort Gnus v0.09.

[elisp/gnus.git-] / lisp / mml1991.el

diff --git a/lisp/mml1991.el b/lisp/mml1991.el
index 5f5c599..1ca73d2 100644 (file)
--- a/lisp/mml1991.el
+++ b/lisp/mml1991.el
@@ -24,7 +24,7 @@
 
 ;;; Commentary:
 
-;; RCS: $Id: mml1991.el,v 1.1.1.3 2002-08-06 12:41:35 yamaoka Exp $
+;; RCS: $Id: mml1991.el,v 1.1.1.4 2003-01-14 05:36:30 yamaoka Exp $
 
 ;;; Code:
 
@@ -35,7 +35,9 @@
   '((mailcrypt mml1991-mailcrypt-sign
               mml1991-mailcrypt-encrypt)
     (gpg mml1991-gpg-sign
-        mml1991-gpg-encrypt))
+        mml1991-gpg-encrypt)
+    (pgg mml1991-pgg-sign
+        mml1991-pgg-encrypt))
   "Alist of PGP functions.")
 
 ;;; mailcrypt wrapper
@@ -80,8 +82,17 @@
       (insert-buffer signature)
       (goto-char (point-max)))))
 
-(defun mml1991-mailcrypt-encrypt (cont)
+(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
@@ -156,7 +167,7 @@
       (insert-buffer signature)
       (goto-char (point-max)))))
 
-(defun mml1991-gpg-encrypt (cont)
+(defun mml1991-gpg-encrypt (cont &optional sign)
   (let ((text (current-buffer))
        cipher
        (result-buffer (get-buffer-create "*GPG Result*")))
@@ -168,21 +179,32 @@
          (kill-region (point-min) (point))))
     (mm-with-unibyte-current-buffer-mule4
       (with-temp-buffer
-       (unless (gpg-sign-encrypt
-                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")))
+       (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))
@@ -194,11 +216,70 @@
        (insert-buffer cipher)
        (goto-char (point-max))))))
 
+;; pgg wrapper
+
+(defvar pgg-output-buffer)
+(defvar pgg-errors-buffer)
+
+(defun mml1991-pgg-sign (cont)
+  (let (headers)
+    ;; Don't sign headers.
+    (goto-char (point-min))
+    (while (not (looking-at "^$"))
+      (forward-line))
+    (unless (eobp) ;; no headers?
+      (setq headers (buffer-substring (point-min) (point)))
+      (forward-line) ;; skip header/body separator
+      (kill-region (point-min) (point)))
+    (quoted-printable-decode-region (point-min) (point-max))
+    (unless (let ((pgg-default-user-id
+                  (or (message-options-get 'message-sender)
+                      pgg-default-user-id)))
+             (pgg-sign-region (point-min) (point-max) t))
+      (pop-to-buffer pgg-errors-buffer)
+      (error "Encrypt error"))
+    (kill-region (point-min) (point-max))
+    (insert-buffer pgg-output-buffer)
+    (goto-char (point-min))
+    (while (re-search-forward "\r+$" nil t)
+      (replace-match "" t t))
+    (quoted-printable-encode-region (point-min) (point-max))
+    (goto-char (point-min))
+    (if headers (insert headers))
+    (insert "\n")
+    t))
+
+(defun mml1991-pgg-encrypt (cont &optional sign)
+  (let (headers)
+    ;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
+    (goto-char (point-min))
+    (while (looking-at "^Content[^ ]+:") (forward-line))
+    (if (> (point) (point-min))
+       (progn
+         (kill-region (point-min) (point))))
+    (unless (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"))
+    (kill-region (point-min) (point-max))
+    ;;(insert "Content-Type: application/pgp-encrypted\n\n")
+    ;;(insert "Version: 1\n\n")
+    (insert "\n")
+    (insert-buffer pgg-output-buffer)
+    t))
+
 ;;;###autoload
-(defun mml1991-encrypt (cont)
+(defun mml1991-encrypt (cont &optional sign)
   (let ((func (nth 2 (assq mml1991-use mml1991-function-alist))))
     (if func
-       (funcall func cont)
+       (funcall func cont sign)
       (error "Cannot find encrypt function"))))
 
 ;;;###autoload