* wl-mime.el (wl-message-verify-pgp-nonmime): Remove kludge.
[elisp/wanderlust.git] / wl / wl-mime.el
index 91df931..31ccf2e 100644 (file)
 (require 'elmo)
 
 (eval-when-compile
-  (defalias-maybe 'Meadow-version 'ignore))
-
-(defvar xemacs-betaname)
-(defvar xemacs-codename)
-(defvar enable-multibyte-characters)
-(defvar mule-version)
+  (defalias-maybe 'pgg-decrypt-region 'ignore)
+  (defalias-maybe 'pgg-display-output-buffer 'ignore)
+  (defalias-maybe 'pgg-verify-region 'ignore))
 
 ;;; Draft
 
@@ -62,18 +59,17 @@ has Non-nil value\)"
                     (function wl-draft-yank-to-draft-buffer))))
        (mime-preview-following-method-alist
         (list (cons 'wl-original-message-mode
-                    (function wl-draft-yank-to-draft-buffer)))))
-    (if (get-buffer (wl-current-message-buffer))
+                    (function wl-draft-yank-to-draft-buffer))))
+       (message-buffer (wl-current-message-buffer)))
+    (if message-buffer
        (save-excursion
-         (set-buffer (wl-current-message-buffer))
+         (set-buffer message-buffer)
          (save-restriction
            (widen)
-             (if (or (and wl-on-xemacs
-                          zmacs-regions zmacs-region-active-p)
-                     (and (not wl-on-xemacs)
-                          transient-mark-mode mark-active))
-                 (wl-mime-preview-follow-current-region)
-               (mime-preview-follow-current-entity)))))))
+           (if (wl-region-exists-p)
+               (wl-mime-preview-follow-current-region)
+             (mime-preview-follow-current-entity))))
+      (error "No message."))))
 
 ;; modified mime-preview-follow-current-entity from mime-view.el
 (defun wl-mime-preview-follow-current-region ()
@@ -139,18 +135,61 @@ It calls following-method selected from variable
        (if (functionp f)
            (funcall f new-buf)
          (message
-          (format
-           "Sorry, following method for %s is not implemented yet."
-           mode))
+          "Sorry, following method for %s is not implemented yet."
+          mode)
          ))
       )))
 
 (defalias 'wl-draft-enclose-digest-region 'mime-edit-enclose-digest-region)
 
+(defun wl-draft-attribute-recipients ()
+  (concat (mapconcat
+          'identity
+          (wl-draft-deduce-address-list
+           (current-buffer)
+           (point-min)
+           (save-excursion
+             (goto-char (point-min))
+             (re-search-forward
+              (concat
+               "^"
+               (regexp-quote mail-header-separator)
+               "$")
+              nil t)
+             (point)))
+          ", ")))
+
+(defun wl-draft-attribute-envelope-from ()
+  (or wl-envelope-from
+      (wl-address-header-extract-address wl-from)))
+
+(defun wl-draft-attribute-smtp-posting-server ()
+  (or wl-smtp-posting-server
+      (progn (require 'smtp) smtp-server)
+      "localhost"))
+
+(defun wl-draft-attribute-smtp-posting-port ()
+  (or wl-smtp-posting-port
+      (progn (require 'smtp) smtp-service)))
+
+(defun wl-draft-attribute-value (attr)
+  (let ((name (symbol-name attr))
+       fsymbol symbol)
+    (cond ((and (setq fsymbol (intern-soft
+                              (format "wl-draft-attribute-%s" name)))
+               (fboundp fsymbol))
+          (funcall fsymbol))
+         ((and (setq symbol (intern-soft (format "wl-%s" name)))
+               (boundp symbol))
+          (symbol-value symbol))
+         ((boundp attr)
+          (symbol-value attr)))))
+
 (defun wl-draft-preview-message ()
   "Preview editing message."
   (interactive)
-  (let* (recipients-message
+  (let* (attribute-list
+        (orig-buffer (current-buffer))
         (current-point (point))
         (config-exec-flag wl-draft-config-exec-flag)
         (parent-folder wl-draft-parent-folder)
@@ -158,47 +197,80 @@ It calls following-method selected from variable
         (mime-header-encode-method-alist
          (append
           '((wl-draft-eword-encode-address-list
-             .  (To Cc Bcc Resent-To Resent-Cc Bcc Resent-Bcc)))
+             .  (To Cc Bcc Resent-To Resent-Cc Resent-Bcc From)))
           (if (boundp 'mime-header-encode-method-alist)
               (symbol-value 'mime-header-encode-method-alist))))
         mime-view-ignored-field-list   ; all header.
         (mime-edit-translate-buffer-hook
          (append
           (list
-           (function
-            (lambda ()
-              (let ((wl-draft-config-exec-flag config-exec-flag)
-                    (wl-draft-parent-folder parent-folder))
-                (goto-char current-point)
-                (run-hooks 'wl-draft-send-hook)
-                (setq recipients-message
-                      (condition-case err
-                          (concat "Recipients: "
-                                  (mapconcat
-                                   'identity
-                                   (wl-draft-deduce-address-list
-                                    (current-buffer)
-                                    (point-min)
-                                    (save-excursion
-                                      (goto-char (point-min))
-                                      (re-search-forward
-                                       (concat
-                                        "^"
-                                        (regexp-quote mail-header-separator)
-                                        "$")
-                                       nil t)
-                                      (point)))
-                                   ", "))
-                        (error
-                         (kill-buffer (current-buffer))
-                         (signal (car err) (cdr err)))))))))
+           (lambda ()
+             (let ((wl-draft-config-exec-flag config-exec-flag)
+                   (wl-draft-parent-folder parent-folder)
+                   (copy-buffer (current-buffer)))
+               (with-current-buffer orig-buffer
+                 (wl-copy-local-variables
+                  orig-buffer
+                  copy-buffer
+                  (append wl-draft-config-variables
+                          (wl-draft-clone-local-variables))))
+               (goto-char current-point)
+               (run-hooks 'wl-draft-send-hook)
+               (condition-case err
+                   (setq attribute-list
+                         (mapcar
+                          (lambda (attr)
+                            (cons attr (wl-draft-attribute-value attr)))
+                          wl-draft-preview-attributes-list))
+                 (error
+                  (kill-buffer (current-buffer))
+                  (signal (car err) (cdr err)))))))
           mime-edit-translate-buffer-hook)))
     (mime-edit-preview-message)
     (let ((buffer-read-only nil))
       (when wl-highlight-body-too
        (wl-highlight-body))
       (run-hooks 'wl-draft-preview-message-hook))
-    (message recipients-message)))
+    (make-local-variable 'kill-buffer-hook)
+    (add-hook 'kill-buffer-hook
+             (lambda ()
+               (when (get-buffer-window
+                      wl-draft-preview-attributes-buffer-name)
+                 (select-window (get-buffer-window
+                                 wl-draft-preview-attributes-buffer-name))
+                 (delete-window))
+               (when (get-buffer wl-draft-preview-attributes-buffer-name)
+                 (kill-buffer (get-buffer
+                               wl-draft-preview-attributes-buffer-name)))))
+    (if (not wl-draft-preview-attributes)
+       (message (concat "Recipients: "
+                        (cdr (assq 'reciepient attribute-list))))
+      (ignore-errors ; in case when the window is too small
+       (let* ((cur-win (selected-window))
+              (size (min
+                     (- (window-height cur-win)
+                        window-min-height 1)
+                     (- (window-height cur-win)
+                        (max
+                         window-min-height
+                         (1+ wl-draft-preview-attributes-buffer-lines))))))
+         (split-window cur-win (if (> size 0) size window-min-height))
+         (select-window (next-window))
+         (let ((pop-up-windows nil))
+           (switch-to-buffer (get-buffer-create
+                              wl-draft-preview-attributes-buffer-name)))
+         (with-current-buffer
+             (get-buffer wl-draft-preview-attributes-buffer-name)
+           (setq buffer-read-only t)
+           (let (buffer-read-only)
+             (erase-buffer)
+             (dolist (pair attribute-list)
+               (insert (capitalize (symbol-name (car pair))) ": "
+                       (format "%s" (or (cdr pair) ""))
+                       "\n"))
+             (goto-char (point-min))
+             (wl-highlight-headers)))
+         (select-window cur-win))))))
 
 (defalias 'wl-draft-caesar-region  'mule-caesar-region)
 
@@ -279,25 +351,129 @@ It calls following-method selected from variable
                 (yes-or-no-p
                  (format "Do you really want to delete part %s? "
                          (wl-mime-node-id-to-string node-id))))
-       (with-temp-buffer
-         (insert-buffer orig-buf)
-         (delete-region header-start body-end)
-         (goto-char header-start)
-         (insert "Content-Type: text/plain; charset=US-ASCII\n\n")
-         (insert "** This part has been removed by Wanderlust **\n\n")
-         (elmo-folder-append-buffer folder t))
-
-       (elmo-folder-append-messages
-        (wl-folder-get-elmo-folder wl-trash-folder)
-        folder (list number) nil)
-       (elmo-folder-delete-messages folder (list number))
-
-       (when (file-exists-p (elmo-cache-get-path msgid))
-         (delete-file (elmo-cache-get-path msgid)))
-
-       (mime-preview-quit)
-       (wl-summary-toggle-disp-msg 'off)
-       (wl-summary-sync nil "update")))))
+       (when (with-temp-buffer
+               (insert-buffer orig-buf)
+               (delete-region header-start body-end)
+               (goto-char header-start)
+               (insert "Content-Type: text/plain; charset=US-ASCII\n\n")
+               (insert "** This part has been removed by Wanderlust **\n\n")
+               (elmo-folder-append-buffer folder))
+
+         (elmo-folder-move-messages
+          folder (list number)
+          (wl-folder-get-elmo-folder wl-trash-folder))
+         (when (and (elmo-cache-get-path msgid)
+                    (file-exists-p (elmo-cache-get-path msgid)))
+           (delete-file (elmo-cache-get-path msgid)))
+
+         (mime-preview-quit)
+         (wl-summary-delete-messages-on-buffer (list number))
+         (wl-summary-toggle-disp-msg 'off)
+         (setq wl-message-buffer nil)
+         (wl-summary-sync nil "update"))))))
+
+(defun wl-message-decrypt-pgp-nonmime ()
+  "Decrypt PGP encrypted region"
+  (interactive)
+  (require 'pgg)
+  (save-excursion
+    (beginning-of-line)
+    (if (or (re-search-forward "^-+END PGP MESSAGE-+$" nil t)
+           (re-search-backward "^-+END PGP MESSAGE-+$" nil t))
+       (let (beg end status)
+         (setq end (match-end 0))
+         (if (setq beg (re-search-backward "^-+BEGIN PGP MESSAGE-+$" nil t))
+             (let ((inhibit-read-only t)
+                   (buffer-file-coding-system wl-cs-autoconv))
+               (setq status (pgg-decrypt-region beg end))
+               (pgg-display-output-buffer beg end status))
+           (message "Cannot find pgp encrypted region")))
+      (message "Cannot find pgp encrypted region"))))
+
+(defun wl-message-verify-pgp-nonmime ()
+  "Verify PGP signed region"
+  (interactive)
+  (require 'pgg)
+  (save-excursion
+    (beginning-of-line)
+    (if (and (or (re-search-forward "^-+END PGP SIGNATURE-+$" nil t)
+                (re-search-backward "^-+END PGP SIGNATURE-+$" nil t))
+            (re-search-backward "^-+BEGIN PGP SIGNED MESSAGE-+$" nil t))
+       (let (status m-beg)
+         (let* ((beg (point))
+                (situation (mime-preview-find-boundary-info))
+                (p-end (aref situation 1))
+                (entity (aref situation 2))
+                (count 0))
+           (goto-char p-end)
+           (while (< beg (point))
+             (if (re-search-backward "^-+BEGIN PGP SIGNED MESSAGE-+$" nil t)
+                 (setq count (+ count 1))
+               (debug)))
+           (with-temp-buffer
+             (set-buffer-multibyte nil)
+             (insert (mime-entity-body entity))
+             (goto-char (point-max))
+             (while (> count 0)
+               (if (re-search-backward "^-+BEGIN PGP SIGNED MESSAGE-+$" nil t)
+                   (setq count (- count 1))
+                 (debug)))
+             (let ((r-beg (point))
+                   (r-end (re-search-forward "^-+END PGP SIGNATURE-+$" nil t)))
+               (if r-end
+                   (setq status (pgg-verify-region r-beg r-end nil 'fetch))
+                 (debug)))))
+         (mime-show-echo-buffer)
+         (set-buffer mime-echo-buffer-name)
+         (set-window-start
+          (get-buffer-window mime-echo-buffer-name)
+          (point-max))
+         (insert-buffer-substring
+          (if status pgg-output-buffer pgg-errors-buffer)))
+      (message "Cannot find pgp signed region"))))
+
+;; XXX: encrypted multipart isn't represented as multipart
+(defun wl-mime-preview-application/pgp (parent-entity entity situation)
+  (require 'pgg)
+  (goto-char (point-max))
+  (let ((p (point))
+       raw-buf to-buf representation-type child-entity)
+    (goto-char p)
+    (save-restriction
+      (narrow-to-region p p)
+      (setq to-buf (current-buffer))
+      (with-temp-buffer
+       (setq raw-buf (current-buffer))
+       (mime-insert-entity entity)
+       (when (progn
+               (goto-char (point-min))
+               (re-search-forward "^-+BEGIN PGP MESSAGE-+$" nil t))
+         (pgg-decrypt-region (point-min)(point-max))
+         (delete-region (point-min) (point-max))
+         (insert-buffer pgg-output-buffer)
+         (setq representation-type 'elmo-buffer))
+       (setq child-entity (mime-parse-message
+                           (mm-expand-class-name representation-type)
+                           nil
+                           parent-entity
+                           (mime-entity-node-id-internal parent-entity)))
+       (mime-display-entity
+        child-entity
+        nil
+        `((header . visible)
+          (body . visible)
+          (entity-button . invisible))
+        to-buf)))))
+
+(defun wl-mime-preview-application/pgp-encrypted (entity situation)
+  (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))))
+    (wl-mime-preview-application/pgp entity orig-entity situation)))
 
 ;;; Summary
 (defun wl-summary-burst-subr (message-entity target number)
@@ -317,9 +493,7 @@ It calls following-method selected from variable
                 (car (mime-entity-children message-entity)))
           (with-temp-buffer
             (insert (mime-entity-body message-entity))
-            (elmo-folder-append-buffer
-             target
-             (mime-entity-fetch-field entity "Message-ID")))))
+            (elmo-folder-append-buffer target))))
     number))
 
 (defun wl-summary-burst (&optional arg)
@@ -328,15 +502,23 @@ With ARG, ask destination folder."
   (interactive "P")
   (let ((raw-buf (wl-summary-get-original-buffer))
        (view-buf wl-message-buffer)
-       children message-entity content-type target)
+       message-entity target)
     (save-excursion
-      (setq target wl-summary-buffer-elmo-folder)
-      (when (or arg (not (elmo-folder-writable-p target)))
-       (let ((fld (wl-summary-read-folder wl-default-folder "to extract to")))
-         (setq target (wl-folder-get-elmo-folder fld))))
+      (when (and (null arg)
+                (elmo-folder-writable-p wl-summary-buffer-elmo-folder))
+       (setq target wl-summary-buffer-elmo-folder))
+      (while (null target)
+       (let ((name (wl-summary-read-folder wl-default-folder
+                                           "to extract to")))
+         (setq target (wl-folder-get-elmo-folder name))
+         (unless (elmo-folder-writable-p target)
+           (message "%s is not writable" name)
+           (setq target nil)
+           (sit-for 1))))
       (wl-summary-set-message-buffer-or-redisplay)
       (with-current-buffer view-buf
-       (setq message-entity (get-text-property (point-min) 'mime-view-entity)))
+       (setq message-entity
+             (get-text-property (point-min) 'mime-view-entity)))
       (when message-entity
        (message "Bursting...")
        (with-current-buffer raw-buf
@@ -344,7 +526,10 @@ With ARG, ask destination folder."
        (message "Bursting...done"))
       (if (elmo-folder-plugged-p target)
          (elmo-folder-check target)))
-    (wl-summary-sync-update)))
+    (when (and target
+              (string= wl-summary-buffer-folder-name
+                       (elmo-folder-name-internal target)))
+      (save-excursion (wl-summary-sync-update)))))
 
 ;; internal variable.
 (defvar wl-mime-save-directory nil "Last saved directory.")
@@ -370,11 +555,9 @@ With ARG, ask destination folder."
 (defun wl-mime-combine-message/partial-pieces (entity situation)
   "Internal method for wl to combine message/partial messages automatically."
   (interactive)
-  (let* ((msgdb (save-excursion
-                 (set-buffer wl-message-buffer-cur-summary-buffer)
-                 (wl-summary-buffer-msgdb)))
+  (let* ((folder (with-current-buffer wl-message-buffer-cur-summary-buffer
+                  wl-summary-buffer-elmo-folder))
         (mime-display-header-hook 'wl-highlight-headers)
-        (folder wl-message-buffer-cur-folder)
         (id (or (cdr (assoc "id" situation)) ""))
         (mother (current-buffer))
         (summary-buf wl-message-buffer-cur-summary-buffer)
@@ -405,18 +588,16 @@ With ARG, ask destination folder."
              wl-summary-buffer-mime-charset)))
       (if (string-match "[0-9\n]+" subject-id)
          (setq subject-id (substring subject-id 0 (match-beginning 0))))
-      (setq overviews (elmo-msgdb-get-overview msgdb))
       (catch 'tag
-       (while overviews
+       (elmo-folder-do-each-message-entity (entity folder)
          (when (string-match
                 (regexp-quote subject-id)
-                (elmo-msgdb-overview-entity-get-subject (car overviews)))
+                (elmo-message-entity-field entity 'subject 'decode))
            (let* ((message
                    ;; request message at the cursor in Subject buffer.
                    (wl-message-request-partial
-                    folder
-                    (elmo-msgdb-overview-entity-get-number
-                     (car overviews))))
+                    (elmo-folder-name-internal folder)
+                    (elmo-message-entity-number entity)))
                   (situation (mime-entity-situation message))
                   (the-id (or (cdr (assoc "id" situation)) "")))
              (when (string= (downcase the-id)
@@ -424,8 +605,7 @@ With ARG, ask destination folder."
                (with-current-buffer mother
                  (mime-store-message/partial-piece message situation))
                (if (file-exists-p full-file)
-                   (throw 'tag nil)))))
-         (setq overviews (cdr overviews)))
+                   (throw 'tag nil))))))
        (message "Not all partials found.")))))
 
 (defun wl-mime-display-text/plain (entity situation)
@@ -474,6 +654,14 @@ With ARG, ask destination folder."
      (major-mode . wl-original-message-mode)))
 
   (ctree-set-calist-strictly
+   'mime-preview-condition
+   '((type . application)(subtype . pgp-encrypted)
+     (encoding . t)
+     (body . invisible)
+     (body-presentation-method . wl-mime-preview-application/pgp-encrypted)
+     (major-mode . wl-original-message-mode)))
+
+  (ctree-set-calist-strictly
    'mime-acting-condition
    '((type . message) (subtype . partial)
      (method .  wl-mime-combine-message/partial-pieces)