[PATCH v2 2/4] emacs: Minor refactoring of crypto code
David Edmondson
dme at dme.org
Fri Sep 7 04:29:18 PDT 2018
---
emacs/notmuch-crypto.el | 96 +++++++++++++++++++++++++------------------------
1 file changed, 50 insertions(+), 46 deletions(-)
diff --git a/emacs/notmuch-crypto.el b/emacs/notmuch-crypto.el
index ddb447a6..81c0eca0 100644
--- a/emacs/notmuch-crypto.el
+++ b/emacs/notmuch-crypto.el
@@ -96,36 +96,40 @@ mode."
:supertype 'notmuch-button-type)
(defun notmuch-crypto-insert-sigstatus-button (sigstatus from)
+ "Insert a button describing the signature status SIGSTATUS sent
+by user FROM."
(let* ((status (plist-get sigstatus :status))
- (help-msg nil)
- (label "Signature not processed")
(face 'notmuch-crypto-signature-unknown)
- (button-action (lambda (button) (message (button-get button 'help-echo)))))
+ (button-action (lambda (button) (message (button-get button 'help-echo))))
+ (keyid (concat "0x" (plist-get sigstatus :keyid)))
+ label help-msg)
(cond
((string= status "good")
- (let ((fingerprint (concat "0x" (plist-get sigstatus :fingerprint))))
- ;; if userid present, userid has full or greater validity
- (if (plist-member sigstatus :userid)
- (let ((userid (plist-get sigstatus :userid)))
- (setq label (concat "Good signature by: " userid))
- (setq face 'notmuch-crypto-signature-good))
- (progn
- (setq label (concat "Good signature by key: " fingerprint))
- (setq face 'notmuch-crypto-signature-good-key)))
- (setq button-action 'notmuch-crypto-sigstatus-good-callback)
- (setq help-msg (concat "Click to list key ID 0x" fingerprint "."))))
+ (let ((fingerprint (concat "0x" (plist-get sigstatus :fingerprint)))
+ (userid (plist-get sigstatus :userid)))
+ ;; If userid is present it has full or greater validity.
+ (if userid
+ (setq label (concat "Good signature by: " userid)
+ face 'notmuch-crypto-signature-good)
+ (setq label (concat "Good signature by key: " fingerprint)
+ face 'notmuch-crypto-signature-good-key))
+ (setq button-action 'notmuch-crypto-sigstatus-good-callback
+ help-msg (concat "Click to list key ID 0x" fingerprint "."))))
+
((string= status "error")
- (let ((keyid (concat "0x" (plist-get sigstatus :keyid))))
- (setq label (concat "Unknown key ID " keyid " or unsupported algorithm"))
- (setq button-action 'notmuch-crypto-sigstatus-error-callback)
- (setq help-msg (concat "Click to retrieve key ID " keyid " from keyserver and redisplay."))))
+ (setq label (concat "Unknown key ID " keyid " or unsupported algorithm")
+ button-action 'notmuch-crypto-sigstatus-error-callback
+ help-msg (concat "Click to retrieve key ID " keyid
+ " from keyserver and redisplay.")))
+
((string= status "bad")
- (let ((keyid (concat "0x" (plist-get sigstatus :keyid))))
- (setq label (concat "Bad signature (claimed key ID " keyid ")"))
- (setq face 'notmuch-crypto-signature-bad)))
+ (setq label (concat "Bad signature (claimed key ID " keyid ")")
+ face 'notmuch-crypto-signature-bad))
+
(t
(setq label (concat "Unknown signature status"
(if status (concat ": " status))))))
+
(insert-button
(concat "[ " label " ]")
:type 'notmuch-crypto-status-button-type
@@ -134,22 +138,22 @@ mode."
'mouse-face face
'action button-action
:notmuch-sigstatus sigstatus
- :notmuch-from from)
- (insert "\n")))
-
-(declare-function notmuch-show-refresh-view "notmuch-show" (&optional reset-state))
+ :notmuch-from from))
+ (insert "\n"))
(defun notmuch-crypto-sigstatus-good-callback (button)
(let* ((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 t nil)))
+ (window (display-buffer buffer)))
(with-selected-window window
(with-current-buffer buffer
(goto-char (point-max))
(call-process epg-gpg-program nil t t "--list-keys" fingerprint))
(recenter -1))))
+(declare-function notmuch-show-refresh-view "notmuch-show" (&optional reset-state))
+
(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."
@@ -187,6 +191,8 @@ asynchronously, handle completion of that task."
(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*")))
@@ -208,7 +214,7 @@ asynchronously, handle completion of that task."
(process-put p :notmuch-show-point (point))
(message "Getting the GPG key %s asynchronously..." keyid)
(continue-process p)))
- (let ((window (display-buffer buffer t nil)))
+ (let ((window (display-buffer buffer)))
(with-selected-window window
(with-current-buffer buffer
(goto-char (point-max))
@@ -219,25 +225,23 @@ asynchronously, handle completion of that task."
(notmuch-show-refresh-view)))))
(defun notmuch-crypto-insert-encstatus-button (encstatus)
- (let* ((status (plist-get encstatus :status))
- (help-msg nil)
- (label "Decryption not attempted")
- (face 'notmuch-crypto-decryption))
- (cond
- ((string= status "good")
- (setq label "Decryption successful"))
- ((string= status "bad")
- (setq label "Decryption error"))
- (t
- (setq label (concat "Unknown encryption status"
- (if status (concat ": " status))))))
- (insert-button
- (concat "[ " label " ]")
- :type 'notmuch-crypto-status-button-type
- 'help-echo help-msg
- 'face face
- 'mouse-face face)
- (insert "\n")))
+ "Insert a button describing the encryption status ENCSTATUS."
+ (insert-button
+ (concat "[ "
+ (let ((status (plist-get encstatus :status)))
+ (cond
+ ((string= status "good")
+ "Decryption successful")
+ ((string= status "bad")
+ "Decryption error")
+ (t
+ (concat "Unknown encryption status"
+ (if status (concat ": " status))))))
+ " ]")
+ :type 'notmuch-crypto-status-button-type
+ 'face 'notmuch-crypto-decryption
+ 'mouse-face 'notmuch-crypto-decryption)
+ (insert "\n"))
;;
--
2.11.0
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