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;; -*- lexical-binding: t; -*-
;;; personal emails and others
(defvar jao-mails)
(defvar jao-extra-mails)
(defvar jao-mails-regexp (regexp-opt jao-mails))
(defvar jao-notmuch-enabled (eq jao-afio-mail-function 'notmuch))
;;; gnus
(setq gnus-init-file "~/.emacs.d/gnus.el"
gnus-home-directory "~/.emacs.d/gnus"
gnus-directory gnus-home-directory
gnus-cache-directory (expand-file-name "cache" gnus-home-directory)
gnus-kill-files-directory (expand-file-name "News" gnus-home-directory)
message-directory (expand-file-name "Mail" gnus-home-directory)
mail-source-directory (expand-file-name "Mail" gnus-home-directory))
(let ((org-file (expand-file-name "gnus.org" jao-emacs-dir)))
(when (file-newer-than-file-p org-file gnus-init-file)
(org-babel-tangle-file org-file)))
;;; message mode
;;;; customization
(setq message-send-mail-function 'message-send-mail-with-sendmail
message-sendmail-envelope-from 'header
message-sendmail-f-is-evil nil)
(setq imap-store-password t)
(setq password-cache-expiry nil)
(setq message-generate-headers-first t)
(setq message-forward-before-signature nil)
(setq message-alternative-emails
(regexp-opt (append jao-mails jao-extra-mails)))
(setq message-dont-reply-to-names
(regexp-opt (append jao-mails '("noreply@" "@noreply"
"no-reply@" "@no-reply"
"notifications@github"))))
(setq message-citation-line-format "On %a, %b %d %Y, %N wrote:\n")
(setq message-citation-line-function 'message-insert-formatted-citation-line)
(setq message-user-fqdn "mail.jao.io")
(setq message-kill-buffer-on-exit t)
(setq message-max-buffers 5)
(setq message-insert-signature t)
(setq message-from-style 'angles
user-mail-address (car jao-mails)
mail-host-address system-name
message-syntax-checks '((sender . disabled))
message-default-headers
(concat
"X-Attribution: jao\n"
"X-Clacks-Overhead: GNU Terry Pratchett\n"
"X-URL: <https://jao.io/>\n")
message-hidden-headers
'("^References:" "^Face:" "^X-Face:" "^X-Draft-From:")
message-make-forward-subject-function 'message-forward-subject-fwd)
(setq message-expand-name-standard-ui t)
;;;; adjust bcc
(defvar jao-message--bcc-rx (regexp-opt '("mail.io" "gnu.org")))
(defun jao-message-insert-bcc ()
(let ((f (or (message-fetch-field "From") "")))
(when (or (string-blank-p f) (string-match-p jao-message--bcc-rx f))
(insert "Bcc: proton@jao.io\n"))))
(add-hook 'message-header-setup-hook #'jao-message-insert-bcc)
;;;; to->from
(defvar jao-message-to-from nil)
(defun jao-message-adjust-from ()
(let ((to (concat (message-fetch-field "To") (message-fetch-field "Cc"))))
(when-let* ((tf (seq-find (lambda (tf) (string-match-p (car tf) to))
jao-message-to-from))
(from (message-make-from "Jose A Ortega Ruiz" (cdr tf))))
(save-restriction
(widen)
(message-replace-header "From" from)))))
(when jao-notmuch-enabled
(add-hook 'message-header-setup-hook #'jao-message-adjust-from))
;;;; encryption
(setq gnutls-min-prime-bits nil)
(setq gnus-buttonized-mime-types
'("multipart/encrypted" "multipart/signed" "multipart/alternative"))
(setq mm-verify-option 'always)
(setq mm-decrypt-option 'always)
(setq mm-sign-option 'guided)
(setq mm-encrypt-option 'guided)
(setq mml-secure-passphrase-cache-expiry (* 3600 24)
password-cache-expiry (* 3600 24))
(setq smime-CA-directory "/etc/ssl/certs/"
smime-certificate-directory
(expand-file-name "certs/" gnus-directory))
(with-eval-after-load "mm-decode"
;; Tells Gnus to inline the part
(add-to-list 'mm-inlined-types "application/pgp$")
;; Tells Gnus how to display the part when it is requested
(add-to-list 'mm-inline-media-tests '("application/pgp$"
mm-inline-text identity))
;; Tell Gnus not to wait for a request, just display the thing
;; straight away.
(add-to-list 'mm-automatic-display "application/pgp$")
;; But don't display the signatures, please.
(setq mm-automatic-display (remove "application/pgp-signature"
mm-automatic-display)))
;; decide whether to encrypt or just sign outgoing messages
(defvar jao-message-try-sign nil)
(defun jao-message-maybe-sign ()
(when (and jao-message-try-sign (y-or-n-p "Sign message? "))
(if (y-or-n-p "Encrypt message? ")
(let ((recipient (message-fetch-field "To")))
(if (or (pgg-lookup-key recipient)
(and (y-or-n-p (format "Fetch %s's key? " recipient))
(pgg-fetch-key pgg-default-keyserver-address
recipient)))
(mml-secure-message-encrypt-pgp)
(mml-secure-message-sign-pgp)))
(mml-secure-message-sign-pgp))))
;; for ma gnus
(eval-after-load "rfc2047"
'(add-to-list 'rfc2047-header-encoding-alist
'("User-Agent" . address-mime)))
;;;; check attachment
(defvar jao-message-attachment-regexp "\\([Ww]e send\\|[Ii] send\\|attach\\)")
(defun jao-message-check-attachment ()
"Check if there is an attachment in the message if I claim it."
(save-excursion
(message-goto-body)
(when (search-forward-regexp jao-message-attachment-regexp nil t nil)
(message-goto-body)
(unless (or (search-forward "<#part" nil t nil)
(message-y-or-n-p
"No attachment. Send the message? " nil nil))
(error "No message sent")))))
;;;; check fcc/gcc
(defun jao-message-check-gcc ()
"Ask whether to keep a copy of message."
(save-excursion
(save-restriction
(message-narrow-to-headers)
(when (and (or (message-fetch-field "Gcc")
(message-fetch-field "Fcc"))
(not (y-or-n-p "Archive? ")))
(message-remove-header "\\(?:[BFG]cc\\)")))))
;;;; check recipient
(defun jao-message-check-recipient ()
(save-excursion
(save-restriction
(message-narrow-to-headers)
(when-let ((to (message-fetch-field "To")))
(when (string-match-p jao-mails-regexp to)
(unless (y-or-n-p "Message is addressed to yourself. Continue?")
(error "Message not sent")))))))
;;;; randomsig
(with-eval-after-load "message"
(when (require 'randomsig nil t)
(define-key message-mode-map (kbd "C-c s") 'randomsig-replace-sig)
(define-key message-mode-map (kbd "C-c S") 'randomsig-select-sig)
(setq randomsig-dir (expand-file-name "~/etc/config/emacs"))
(setq randomsig-files '("signatures.txt"))
;; or (setq randomsig-files (randomsig-search-sigfiles))
;; or (setq randomsig-files 'randomsig-search-sigfiles)
(setq message-signature 'randomsig-signature)
(setq randomsig-delimiter-pattern "^%$"
randomsig-delimiter "%")))
;;;; send mail hooks
(dolist (h '(jao-message-check-gcc
jao-message-check-recipient
jao-message-maybe-sign))
(add-hook 'message-send-hook h))
(unless jao-notmuch-enabled
(add-hook 'message-send-hook #'jao-message-check-attachment))
;;;; keybindings
(with-eval-after-load "message"
;; (define-key message-mode-map [f7] 'mml-secure-message-sign-pgp)
(define-key message-mode-map [f8] 'mml-secure-message-encrypt-pgp)
(define-key message-mode-map (kbd "C-c y") #'yank-media))
;;; sendmail/smtp
(defun jao-sendmail-gmail ()
(setq smtpmail-auth-supported '(login cram-md5 plain))
(setq smtpmail-smtp-server "smtp.gmail.com")
(setq smtpmail-smtp-service 587))
(defun jao-sendmail-local ()
(setq send-mail-function 'sendmail-send-it)
(setq smtpmail-auth-supported nil) ;; (cram-md5 plain login)
(setq smtpmail-smtp-server "127.0.0.1")
(setq smtpmail-smtp-service 25))
(defun jao-sendmail-msmtp ()
(setq send-mail-function 'sendmail-send-it
sendmail-program "/usr/bin/msmtp"
mail-specify-envelope-from t
message-sendmail-envelope-from 'header
mail-envelope-from 'header))
(jao-sendmail-local)
;;; multipart html renderer
(defun jao-w3m-html-renderer (handle)
(let ((w3m-message-silent t)
(mm-w3m-safe-url-regexp nil))
(condition-case nil
(mm-inline-text-html-render-with-w3m handle)
(error (delete-region (point) (point-max))
(let ((shr-use-fonts nil)
(shr-use-colors nil))
(mm-shr handle))))))
(defun jao-shr-html-renderer (handle)
(let (;; (shr-use-fonts t)
;; (shr-use-colors t)
(shr-width 130))
(mm-shr handle)))
;; (setq mm-text-html-renderer #'jao-w3m-html-renderer)
(setq mm-text-html-renderer #'jao-shr-html-renderer)
;;; narrowing
(defvar jao-mail-consult-buffer-history nil)
(defun jao-mail-buffer-p (b)
(or (member (buffer-name b)
'("*Calendar*" "inbox.org" "*Org Agenda*"
"*Fancy Diary Entries*" "diary"))
(with-current-buffer b
(derived-mode-p 'notmuch-show-mode
'notmuch-search-mode
'notmuch-tree-mode
'notmuch-hello-mode
'notmuch-message-mode
'gnus-group-mode
'gnus-summary-mode
'gnus-article-mode))))
(defvar jao-mail-consult-source
(list :name "mail buffer"
:category 'buffer
:hidden t
:narrow (cons ?n "mail buffer")
:history 'jao-mail-consult-buffer-history
:action (lambda (b)
(when (not (string-blank-p (or b "")))
(jao-afio--goto-mail)
(if (get-buffer-window b)
(pop-to-buffer b)
(pop-to-buffer-same-window b))))
:items (lambda ()
(mapcar #'buffer-name
(seq-filter #'jao-mail-buffer-p (buffer-list))))))
(jao-consult-add-buffer-source 'jao-mail-consult-source "Mail" ?n)
;;; .
(provide 'jao-custom-email)
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