+(defcustom notmuch-identities nil
+ "Identities that can be used as the From: address when composing a new message.
+
+If this variable is left unset, then a list will be constructed from the
+name and addresses configured in the notmuch configuration file."
+ :type '(repeat string)
+ :group 'notmuch-send)
+
+(defcustom notmuch-always-prompt-for-sender nil
+ "Always prompt for the From: address when composing or forwarding a message.
+
+This is not taken into account when replying to a message, because in that case
+the From: header is already filled in by notmuch."
+ :type 'boolean
+ :group 'notmuch-send)
+
+(defvar notmuch-mua-sender-history nil)
+
+(defun notmuch-mua-prompt-for-sender ()
+ "Prompt for a sender from the user's configured identities."
+ (if notmuch-identities
+ (ido-completing-read "Send mail from: " notmuch-identities
+ nil nil nil 'notmuch-mua-sender-history
+ (car notmuch-identities))
+ (let* ((name (notmuch-user-name))
+ (addrs (cons (notmuch-user-primary-email)
+ (notmuch-user-other-email)))
+ (address
+ (ido-completing-read (concat "Sender address for " name ": ") addrs
+ nil nil nil 'notmuch-mua-sender-history
+ (car addrs))))
+ (message-make-from name address))))
+
+(put 'notmuch-mua-new-mail 'notmuch-prefix-doc "... and prompt for sender")
+(defun notmuch-mua-new-mail (&optional prompt-for-sender)
+ "Compose new mail.
+
+If PROMPT-FOR-SENDER is non-nil, the user will be prompted for
+the From: address first."
+ (interactive "P")
+ (let ((other-headers
+ (and (or prompt-for-sender notmuch-always-prompt-for-sender)
+ (list (cons 'From (notmuch-mua-prompt-for-sender))))))
+ (notmuch-mua-mail nil nil other-headers nil (notmuch-mua-get-switch-function))))
+
+(defun notmuch-mua-new-forward-messages (messages &optional prompt-for-sender)
+ "Compose a new message forwarding MESSAGES.
+
+If PROMPT-FOR-SENDER is non-nil, the user will be prompteed for
+the From: address."
+ (let* ((other-headers
+ (and (or prompt-for-sender notmuch-always-prompt-for-sender)
+ (list (cons 'From (notmuch-mua-prompt-for-sender)))))
+ ;; Comes from the first message and is applied later.
+ forward-subject
+ ;; List of accumulated message-references of forwarded messages.
+ forward-references
+ ;; List of corresponding message-query.
+ forward-queries)
+ ;; Generate the template for the outgoing message.
+ (notmuch-mua-mail nil "" other-headers nil (notmuch-mua-get-switch-function))
+ (save-excursion
+ ;; Insert all of the forwarded messages.
+ (mapc (lambda (id)
+ (let ((temp-buffer (get-buffer-create
+ (concat "*notmuch-fwd-raw-" id "*"))))
+ ;; Get the raw version of this message in the buffer.
+ (with-current-buffer temp-buffer
+ (erase-buffer)
+ (let ((coding-system-for-read 'no-conversion))
+ (call-process notmuch-command nil t nil
+ "show" "--format=raw" id))
+ ;; Because we process the messages in reverse order,
+ ;; always generate a forwarded subject, then use the
+ ;; last (i.e. first) one.
+ (setq forward-subject (message-make-forward-subject))
+ (push (message-fetch-field "Message-ID") forward-references)
+ (push id forward-queries))
+ ;; Make a copy ready to be forwarded in the
+ ;; composition buffer.
+ (message-forward-make-body temp-buffer)
+ ;; Kill the temporary buffer.
+ (kill-buffer temp-buffer)))
+ ;; `message-forward-make-body' always puts the message at
+ ;; the top, so do them in reverse order.
+ (reverse messages))
+ ;; Add in the appropriate subject.
+ (save-restriction
+ (message-narrow-to-headers)
+ (message-remove-header "Subject")
+ (message-add-header (concat "Subject: " forward-subject))
+ (message-remove-header "References")
+ (message-add-header (concat "References: "
+ (mapconcat 'identity forward-references " "))))
+ ;; Create a buffer-local queue for tag changes triggered when
+ ;; sending the message.
+ (when notmuch-message-forwarded-tags
+ (setq-local notmuch-message-queued-tag-changes
+ (cl-loop for id in forward-queries
+ collect
+ (cons id notmuch-message-forwarded-tags))))
+ ;; `message-forward-make-body' shows the User-agent header. Hide
+ ;; it again.
+ (message-hide-headers)
+ (set-buffer-modified-p nil))))
+
+(defun notmuch-mua-new-reply (query-string &optional prompt-for-sender reply-all)
+ "Compose a reply to the message identified by QUERY-STRING.
+
+If PROMPT-FOR-SENDER is non-nil, the user will be prompted for
+the From: address first. If REPLY-ALL is non-nil, the message
+will be addressed to all recipients of the source message."
+ ;; `select-active-regions' is t by default. The reply insertion code
+ ;; sets the region to the quoted message to make it easy to delete
+ ;; (kill-region or C-w). These two things combine to put the quoted
+ ;; message in the primary selection.
+ ;;
+ ;; This is not what the user wanted and is a privacy risk (accidental
+ ;; pasting of the quoted message). We can avoid some of the problems
+ ;; by let-binding select-active-regions to nil. This fixes if the
+ ;; primary selection was previously in a non-emacs window but not if
+ ;; it was in an emacs window. To avoid the problem in the latter case
+ ;; we deactivate mark.
+ (let ((sender (and prompt-for-sender
+ (notmuch-mua-prompt-for-sender)))
+ (select-active-regions nil))
+ (notmuch-mua-reply query-string sender reply-all)
+ (deactivate-mark)))
+
+;;; Checks
+
+(defun notmuch-mua-check-no-misplaced-secure-tag ()
+ "Query user if there is a misplaced secure mml tag.
+
+Emacs message-send will (probably) ignore a secure mml tag unless
+it is at the start of the body. Returns t if there is no such
+tag, or the user confirms they mean it."
+ (save-excursion
+ (let ((body-start (progn (message-goto-body) (point))))
+ (goto-char (point-max))
+ (or
+ ;; We are always fine if there is no secure tag.
+ (not (search-backward "<#secure" nil t))
+ ;; There is a secure tag, so it must be at the start of the
+ ;; body, with no secure tag earlier (i.e., in the headers).
+ (and (= (point) body-start)
+ (not (search-backward "<#secure" nil t)))
+ ;; The user confirms they means it.
+ (yes-or-no-p "\
+There is a <#secure> tag not at the start of the body. It is
+likely that the message will be sent unsigned and unencrypted.
+Really send? ")))))
+
+(defun notmuch-mua-check-secure-tag-has-newline ()
+ "Query if the secure mml tag has a newline following it.
+
+Emacs message-send will (probably) ignore a correctly placed
+secure mml tag unless it is followed by a newline. Returns t if
+any secure tag is followed by a newline, or the user confirms
+they mean it."
+ (save-excursion
+ (message-goto-body)
+ (or
+ ;; There is no (correctly placed) secure tag.
+ (not (looking-at "<#secure"))
+ ;; The secure tag is followed by a newline.
+ (looking-at "<#secure[^\n>]*>\n")
+ ;; The user confirms they means it.
+ (yes-or-no-p "\
+The <#secure> tag at the start of the body is not followed by a
+newline. It is likely that the message will be sent unsigned and
+unencrypted. Really send? "))))
+
+;;; Finishing commands
+
+(defun notmuch-mua-send-common (arg &optional exit)
+ (interactive "P")
+ (run-hooks 'notmuch-mua-send-hook)
+ (when (and (notmuch-mua-check-no-misplaced-secure-tag)
+ (notmuch-mua-check-secure-tag-has-newline))
+ (cl-letf (((symbol-function 'message-do-fcc)
+ #'notmuch-maildir-message-do-fcc))
+ (if exit
+ (message-send-and-exit arg)
+ (message-send arg)))))
+