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09793b6132
Signed-off-by: Jameson Graef Rollins <jrollins@finestructure.net> jrollins modified this patch to conform to recent changes in the crypto processing since this patch was originally sent in.
126 lines
4.5 KiB
EmacsLisp
126 lines
4.5 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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(defface notmuch-crypto-signature-good
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'((t (:background "green" :foreground "black")))
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"Face used for good signatures."
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:group 'notmuch)
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(defface notmuch-crypto-signature-good-key
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'((t (:background "orange" :foreground "black")))
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"Face used for good signatures."
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:group 'notmuch)
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(defface notmuch-crypto-signature-bad
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'((t (:background "red" :foreground "black")))
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"Face used for bad signatures."
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:group 'notmuch)
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(defface notmuch-crypto-signature-unknown
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'((t (:background "red" :foreground "black")))
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"Face used for signatures of unknown status."
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:group 'notmuch)
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(defface notmuch-crypto-decryption
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'((t (:background "purple" :foreground "black")))
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"Face used for encryption/decryption status messages."
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:group 'notmuch)
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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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(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 'notmuch-crypto-signature-unknown))
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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 'notmuch-crypto-signature-good))
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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 'notmuch-crypto-signature-good-key))))
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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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((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 'notmuch-crypto-signature-bad)))
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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 'notmuch-crypto-decryption))
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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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