From 8266948a2c9f4235ba82c538d7c1ce3af450dfc2 Mon Sep 17 00:00:00 2001
From: ueno <ueno>
Date: Wed, 8 Dec 1999 18:43:19 +0000
Subject: [PATCH] * mime-pgp.el: Add autoload settings for
 `smime-decrypt-region' and `smime-verify-region'.
 (mime-verify-application/pkcs7-signature): New function.
 (mime-decrypt-application/pkcs7-mime): New function.

---
 mime-pgp.el |   72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 71 insertions(+), 1 deletion(-)

diff --git a/mime-pgp.el b/mime-pgp.el
index dde2d68..4e1fac7 100644
--- a/mime-pgp.el
+++ b/mime-pgp.el
@@ -1,4 +1,4 @@
-;;; mime-pgp.el --- mime-view internal methods for PGP.
+;;; mime-pgp.el --- mime-view internal methods foro PGP.
 
 ;; Copyright (C) 1995,1996,1997,1998,1999 MORIOKA Tomohiko
 
@@ -57,6 +57,10 @@
   "PGP verification of current region." t)
 (autoload 'pgg-snarf-keys-region "pgg"
   "Snarf PGP public keys in current region." t)
+(autoload 'smime-decrypt-region "smime"
+  "S/MIME decryption of current region." t)
+(autoload 'smime-verify-region "smime"
+  "S/MIME verification of current region." t)
 
 
 ;;; @ Internal method for multipart/signed
@@ -206,6 +210,72 @@
       )))
 
 
+;;; @ Internal method for application/pkcs7-signature
+;;;
+;;; It is based on RFC 2633 (S/MIME version 3).
+
+(defun mime-verify-application/pkcs7-signature (entity situation)
+  "Internal method to check S/MIME signature."
+  (let* ((entity-node-id (mime-entity-node-id entity))
+	 (mother (mime-entity-parent entity))
+	 (knum (car entity-node-id))
+	 (onum (if (> knum 0)
+		   (1- knum)
+		 (1+ knum)))
+	 (orig-entity (nth onum (mime-entity-children mother)))
+	 (basename (expand-file-name "tm" temporary-file-directory))
+	 (sig-file (concat (make-temp-name basename) ".asc"))
+	 status)
+    (save-excursion 
+      (mime-show-echo-buffer)
+      (set-buffer mime-echo-buffer-name)
+      (set-window-start 
+       (get-buffer-window mime-echo-buffer-name)
+       (point-max))
+      )
+    (mime-write-entity entity sig-file)
+    (unwind-protect
+	(with-temp-buffer
+	  (mime-insert-entity orig-entity)
+	  (goto-char (point-min))
+	  (while (progn (end-of-line) (not (eobp)))
+	    (insert "\r")
+	    (forward-line 1))
+	  (setq status (smime-verify-region (point-min)(point-max) 
+					    sig-file))
+	  (save-excursion 
+	    (set-buffer mime-echo-buffer-name)
+	    (insert-buffer-substring (if status smime-output-buffer
+				       smime-errors-buffer))))
+      (delete-file sig-file))
+    ))
+
+
+;;; @ Internal method for application/pkcs7-mime
+;;;
+;;; It is based on RFC 2633 (S/MIME version 3).
+
+(defun mime-decrypt-application/pkcs7-mime (entity situation)
+  (let* ((p-win (or (get-buffer-window (current-buffer))
+		    (get-largest-window)))
+	 (new-name
+	  (format "%s-%s" (buffer-name) (mime-entity-number entity)))
+	 (mother (current-buffer))
+	 (preview-buffer (concat "*Preview-" (buffer-name) "*"))
+	 representation-type)
+    (set-buffer (get-buffer-create new-name))
+    (erase-buffer)
+    (mime-insert-entity entity)
+    (smime-decrypt-region (point-min)(point-max))
+    (delete-region (point-min)(point-max))
+    (insert-buffer smime-output-buffer)
+    (setq major-mode 'mime-show-message-mode)
+    (save-window-excursion (mime-view-buffer nil preview-buffer mother
+					     nil 'binary))
+    (set-window-buffer p-win preview-buffer)
+    ))
+
+
 ;;; @ end
 ;;;
 
-- 
1.7.10.4