+ (setq show-button nil)))
+ (when show-button
+ (insert-button
+ (concat "[ " label " ]")
+ :type 'notmuch-crypto-status-button-type
+ 'help-echo help-msg
+ 'face face
+ 'mouse-face face
+ 'action button-action
+ :notmuch-sigstatus sigstatus
+ :notmuch-from from)
+ (insert "\n"))))
+
+(defun notmuch-crypto-sigstatus-good-callback (button)
+ (let* ((id (notmuch-show-get-message-id))
+ (sigstatus (button-get button :notmuch-sigstatus))
+ (fingerprint (concat "0x" (plist-get sigstatus :fingerprint)))
+ (buffer (get-buffer-create "*notmuch-crypto-gpg-out*"))
+ (window (display-buffer buffer)))
+ (with-selected-window window
+ (with-current-buffer buffer
+ (goto-char (point-max))
+ (insert (format "-- Key %s in message %s:\n"
+ fingerprint id))
+ (notmuch--call-process notmuch-crypto-gpg-program nil t t
+ "--batch" "--no-tty" "--list-keys" fingerprint))
+ (recenter -1))))
+
+(declare-function notmuch-show-refresh-view "notmuch-show" (&optional reset-state))
+(declare-function notmuch-show-get-message-id "notmuch-show" (&optional bare))
+
+(defun notmuch-crypto--async-key-sentinel (process _event)
+ "When the user asks for a GPG key to be retrieved
+asynchronously, handle completion of that task.
+
+If the retrieval is successful, the thread where the retrieval
+was initiated is still displayed and the cursor has not moved,
+redisplay the thread."
+ (let ((status (process-status process))
+ (exit-status (process-exit-status process))
+ (keyid (process-get process :gpg-key-id)))
+ (when (memq status '(exit signal))
+ (message "Getting the GPG key %s asynchronously...%s."
+ keyid
+ (if (= exit-status 0)
+ "completed"
+ "failed"))
+ ;; If the original buffer is still alive and point didn't move
+ ;; (i.e. the user didn't move on or away), refresh the buffer to
+ ;; show the updated signature status.
+ (let ((show-buffer (process-get process :notmuch-show-buffer))
+ (show-point (process-get process :notmuch-show-point)))
+ (when (and (bufferp show-buffer)
+ (buffer-live-p show-buffer)
+ (= show-point
+ (with-current-buffer show-buffer
+ (point))))
+ (with-current-buffer show-buffer
+ (notmuch-show-refresh-view)))))))
+
+(defun notmuch-crypto--set-button-label (button label)
+ "Set the text displayed in BUTTON to LABEL."
+ (save-excursion
+ (let ((inhibit-read-only t))
+ ;; This knows rather too much about how we typically format
+ ;; buttons.
+ (goto-char (button-start button))
+ (forward-char 2)
+ (delete-region (point) (- (button-end button) 2))
+ (insert label))))
+
+(defun notmuch-crypto-sigstatus-error-callback (button)
+ "When signature validation has failed, try to retrieve the
+corresponding key when the status button is pressed."
+ (let* ((sigstatus (button-get button :notmuch-sigstatus))
+ (keyid (concat "0x" (plist-get sigstatus :keyid)))
+ (buffer (get-buffer-create "*notmuch-crypto-gpg-out*")))
+ (if notmuch-crypto-get-keys-asynchronously
+ (progn
+ (notmuch-crypto--set-button-label
+ button (format "Retrieving key %s asynchronously..." keyid))
+ (with-current-buffer buffer
+ (goto-char (point-max))
+ (insert (format "--- Retrieving key %s:\n" keyid)))
+ (let ((p (notmuch--make-process
+ :name "notmuch GPG key retrieval"
+ :connection-type 'pipe
+ :buffer buffer
+ :stderr buffer
+ :command (list notmuch-crypto-gpg-program "--recv-keys" keyid)
+ :sentinel #'notmuch-crypto--async-key-sentinel)))
+ (process-put p :gpg-key-id keyid)
+ (process-put p :notmuch-show-buffer (current-buffer))
+ (process-put p :notmuch-show-point (point))
+ (message "Getting the GPG key %s asynchronously..." keyid)))
+ (let ((window (display-buffer buffer)))
+ (with-selected-window window
+ (with-current-buffer buffer
+ (goto-char (point-max))
+ (insert (format "--- Retrieving key %s:\n" keyid))
+ (notmuch--call-process notmuch-crypto-gpg-program nil t t "--recv-keys" keyid)
+ (insert "\n")
+ (notmuch--call-process notmuch-crypto-gpg-program nil t t "--list-keys" keyid))
+ (recenter -1))
+ (notmuch-show-refresh-view)))))