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mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-11-25 07:28:20 +00:00
emacs/lisp/mail/mailpost.el
1992-08-04 04:15:43 +00:00

104 lines
3.1 KiB
EmacsLisp

;;; mailpost.el --- RMAIL coupler to /usr/uci/post mailer
;; This is in the public domain
;; since Delp distributed it without a copyright notice in 1986.
;; Author: Gary Delp <delp@huey.Udel.Edu>
;; Maintainer: FSF
;; Created: 13 Jan 1986
;; Keywords: mail
;;; Commentary:
;; Yet another mail interface. this for the rmail system to provide
;; the missing sendmail interface on systems without /usr/lib/sendmail,
;; but with /usr/uci/post.
;;; Code:
(require 'mailalias)
(require 'sendmail)
;; (setq send-mail-function 'post-mail-send-it)
(defun post-mail-send-it ()
"The MH -post interface for `rmail-mail' to call.
To use it, include \"(setq send-mail-function 'post-mail-send-it)\" in
site-init."
(let ((errbuf (if mail-interactive
(generate-new-buffer " post-mail errors")
0))
(temfile "/tmp/,rpost")
(tembuf (generate-new-buffer " post-mail temp"))
(case-fold-search nil)
delimline
(mailbuf (current-buffer)))
(unwind-protect
(save-excursion
(set-buffer tembuf)
(erase-buffer)
(insert-buffer-substring mailbuf)
(goto-char (point-max))
;; require one newline at the end.
(or (= (preceding-char) ?\n)
(insert ?\n))
;; Change header-delimiter to be what post-mail expects.
(goto-char (point-min))
(search-forward (concat "\n" mail-header-separator "\n"))
(replace-match "\n\n")
(backward-char 1)
(setq delimline (point-marker))
(if mail-aliases
(expand-mail-aliases (point-min) delimline))
(goto-char (point-min))
;; ignore any blank lines in the header
(while (and (re-search-forward "\n\n\n*" delimline t)
(< (point) delimline))
(replace-match "\n"))
;; Find and handle any FCC fields.
(let ((case-fold-search t))
(goto-char (point-min))
(if (re-search-forward "^FCC:" delimline t)
(mail-do-fcc delimline))
;; If there is a From and no Sender, put it a Sender.
(goto-char (point-min))
(and (re-search-forward "^From:" delimline t)
(not (save-excursion
(goto-char (point-min))
(re-search-forward "^Sender:" delimline t)))
(progn
(forward-line 1)
(insert "Sender: " (user-login-name) "\n")))
;; don't send out a blank subject line
(goto-char (point-min))
(if (re-search-forward "^Subject:[ \t]*\n" delimline t)
(replace-match ""))
(if mail-interactive
(save-excursion
(set-buffer errbuf)
(erase-buffer))))
(write-file (setq temfile (make-temp-name temfile)))
(set-file-modes temfile 384)
(apply 'call-process
(append (list (if (boundp 'post-mail-program)
post-mail-program
"/usr/uci/lib/mh/post")
nil errbuf nil
"-nofilter" "-msgid")
(if mail-interactive '("-watch") '("-nowatch"))
(list temfile)))
(if mail-interactive
(save-excursion
(set-buffer errbuf)
(goto-char (point-min))
(while (re-search-forward "\n\n* *" nil t)
(replace-match "; "))
(if (not (zerop (buffer-size)))
(error "Sending...failed to %s"
(buffer-substring (point-min) (point-max)))))))
(kill-buffer tembuf)
(if (bufferp errbuf)
(switch-to-buffer errbuf)))))
;;; mailpost.el ends here