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cb8418784c
This is the best way to make the displayed output for decrypted/verified messages clearer. The special sigstatus and encstatus buttons are now displayed under the part header button. The part header button is also tweaked to provide information to user about how to proces crypto.
104 lines
3.9 KiB
EmacsLisp
104 lines
3.9 KiB
EmacsLisp
;; notmuch-crypto.el --- functions for handling display of cryptographic metadata.
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;;
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;; Copyright © Jameson Rollins
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;;
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;; This file is part of Notmuch.
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;;
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;; Notmuch is free software: you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;;
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;; Notmuch is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
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;;
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;; Authors: Jameson Rollins <jrollins@finestructure.net>
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(defcustom notmuch-crypto-process-mime nil
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"Should cryptographic MIME parts be processed?
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If this variable is non-nil signatures in multipart/signed
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messages will be verified and multipart/encrypted parts will be
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decrypted. The result of the crypto operation will be displayed
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in a specially colored header button at the top of the processed
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part. Signed parts will have variously colored headers depending
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on the success or failure of the verification process and on the
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validity of user ID of the signer.
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The effect of setting this variable can be seen temporarily by
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viewing a signed or encrypted message with M-RET in notmuch
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search."
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:group 'notmuch
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:type 'boolean)
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(define-button-type 'notmuch-crypto-status-button-type
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'action '(lambda (button) (message (button-get button 'help-echo)))
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'follow-link t
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'help-echo "Set notmuch-crypto-process-mime to process cryptographic mime parts."
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'face '(:foreground "blue")
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'mouse-face '(:foreground "blue"))
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(defun notmuch-crypto-insert-sigstatus-button (sigstatus from)
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(let* ((status (plist-get sigstatus :status))
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(help-msg nil)
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(label "Signature not processed")
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(face '(:background "red" :foreground "black")))
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(cond
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((string= status "good")
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; if userid present, userid has full or greater validity
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(if (plist-member sigstatus :userid)
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(let ((userid (plist-get sigstatus :userid)))
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(setq label (concat "Good signature by: " userid))
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(setq face '(:background "green" :foreground "black")))
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(let ((fingerprint (concat "0x" (plist-get sigstatus :fingerprint))))
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(setq label (concat "Good signature by key: " fingerprint))
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(setq face '(:background "orange" :foreground "black")))))
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((string= status "error")
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(let ((keyid (concat "0x" (plist-get sigstatus :keyid))))
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(setq label (concat "Unknown key ID " keyid " or unsupported algorithm"))
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(setq face '(:background "red" :foreground "black"))))
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((string= status "bad")
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(let ((keyid (concat "0x" (plist-get sigstatus :keyid))))
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(setq label (concat "Bad signature (claimed key ID " keyid ")"))
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(setq face '(:background "red" :foreground "black"))))
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(t
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(setq label "Unknown signature status")
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(if status (setq label (concat label " \"" status "\"")))))
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(insert-button
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(concat "[ " label " ]")
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:type 'notmuch-crypto-status-button-type
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'help-echo help-msg
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'face face
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'mouse-face face
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:notmuch-sigstatus sigstatus
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:notmuch-from from)
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(insert "\n")))
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(defun notmuch-crypto-insert-encstatus-button (encstatus)
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(let* ((status (plist-get encstatus :status))
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(help-msg nil)
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(label "Decryption not attempted")
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(face '(:background "purple" :foreground "black")))
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(cond
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((string= status "good")
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(setq label "Decryption successful"))
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((string= status "bad")
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(setq label "Decryption error"))
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(t
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(setq label (concat "Unknown encstatus \"" status "\""))))
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(insert-button
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(concat "[ " label " ]")
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:type 'notmuch-crypto-status-button-type
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'help-echo help-msg
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'face face
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'mouse-face face)
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(insert "\n")))
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;;
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(provide 'notmuch-crypto)
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