[bpt/emacs.git] / lisp / mail / smtpmail.el

;; Simple SMTP protocol (RFC 821) for sending mail

;; Copyright (C) 1995, 1996 Free Software Foundation, Inc.

;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
;; Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
;; Keywords: mail

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Commentary:

;; Send Mail to smtp host from smtpmail temp buffer.

;; Please add these lines in your .emacs(_emacs).
;;
;;(setq send-mail-function 'smtpmail-send-it)
;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
;;(setq smtpmail-smtp-service "smtp")
;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
;;(setq smtpmail-debug-info t)
;;(load-library "smtpmail")
;;(setq smtpmail-code-conv-from nil)
;;(setq user-full-name "YOUR NAME HERE")

;;; Code:

(require 'sendmail)

;;;
(defvar smtpmail-default-smtp-server nil
  "*Specify default SMTP server.")

(defvar smtpmail-smtp-server 
  (or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
  "*The name of the host running SMTP server.")

(defvar smtpmail-smtp-service 25
  "*SMTP service port number. smtp or 25 .")

(defvar smtpmail-local-domain nil
  "*Local domain name without a host name.
If the function (system-name) returns the full internet address,
don't define this value.")

(defvar smtpmail-debug-info nil
  "*smtpmail debug info printout. messages and process buffer.")

(defvar smtpmail-code-conv-from nil ;; *junet*
  "*smtpmail code convert from this code to *internal*..for tiny-mime..")

;;;
;;;
;;;

(defun smtpmail-send-it ()
  (require 'mail-utils)
  (let ((errbuf (if mail-interactive
		    (generate-new-buffer " smtpmail errors")
		  0))
	(tembuf (generate-new-buffer " smtpmail temp"))
	(case-fold-search nil)
	resend-to-addresses
	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 sendmail expects.
	  (goto-char (point-min))
	  (re-search-forward
	    (concat "^" (regexp-quote mail-header-separator) "\n"))
	  (replace-match "\n")
	  (backward-char 1)
	  (setq delimline (point-marker))
;;	  (sendmail-synch-aliases)
	  (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"))
	  (let ((case-fold-search t))
	    (goto-char (point-min))
	    (goto-char (point-min))
	    (while (re-search-forward "^Resent-to:" delimline t)
	      (setq resend-to-addresses
		    (save-restriction
		      (narrow-to-region (point)
					(save-excursion
					  (end-of-line)
					  (point)))
		      (append (mail-parse-comma-list)
			      resend-to-addresses))))
;;; Apparently this causes a duplicate Sender.
;;;	    ;; If the From is different than current user, insert Sender.
;;;	    (goto-char (point-min))
;;;	    (and (re-search-forward "^From:"  delimline t)
;;;		 (progn
;;;		   (require 'mail-utils)
;;;		   (not (string-equal
;;;			 (mail-strip-quoted-names
;;;			  (save-restriction
;;;			    (narrow-to-region (point-min) delimline)
;;;			    (mail-fetch-field "From")))
;;;			 (user-login-name))))
;;;		 (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 ""))
	    ;; Put the "From:" field in unless for some odd reason
	    ;; they put one in themselves.
	    (goto-char (point-min))
	    (if (not (re-search-forward "^From:" delimline t))
		(let* ((login user-mail-address)
		       (fullname (user-full-name)))
		  (cond ((eq mail-from-style 'angles)
			 (insert "From: " fullname)
			 (let ((fullname-start (+ (point-min) 6))
			       (fullname-end (point-marker)))
			   (goto-char fullname-start)
			   ;; Look for a character that cannot appear unquoted
			   ;; according to RFC 822.
			   (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
						  fullname-end 1)
			       (progn
				 ;; Quote fullname, escaping specials.
				 (goto-char fullname-start)
				 (insert "\"")
				 (while (re-search-forward "[\"\\]"
							   fullname-end 1)
				   (replace-match "\\\\\\&" t))
				 (insert "\""))))
			 (insert " <" login ">\n"))
			((eq mail-from-style 'parens)
			 (insert "From: " login " (")
			 (let ((fullname-start (point)))
			   (insert fullname)
			   (let ((fullname-end (point-marker)))
			     (goto-char fullname-start)
			     ;; RFC 822 says \ and nonmatching parentheses
			     ;; must be escaped in comments.
			     ;; Escape every instance of ()\ ...
			     (while (re-search-forward "[()\\]" fullname-end 1)
			       (replace-match "\\\\\\&" t))
			     ;; ... then undo escaping of matching parentheses,
			     ;; including matching nested parentheses.
			     (goto-char fullname-start)
			     (while (re-search-forward 
				     "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
				     fullname-end 1)
			       (replace-match "\\1(\\3)" t)
			       (goto-char fullname-start))))
			 (insert ")\n"))
			((null mail-from-style)
			 (insert "From: " login "\n")))))
	    ;; Insert an extra newline if we need it to work around
	    ;; Sun's bug that swallows newlines.
	    (goto-char (1+ delimline))
	    (if (eval mail-mailer-swallows-blank-line)
		(newline))
	    ;; Find and handle any FCC fields.
	    (goto-char (point-min))
	    (if (re-search-forward "^FCC:" delimline t)
		(mail-do-fcc delimline))
	    (if mail-interactive
		(save-excursion
		  (set-buffer errbuf)
		  (erase-buffer))))
	  ;;
	  ;;
	  ;;
	  (setq smtpmail-address-buffer (generate-new-buffer "*smtp-mail*"))
	  (setq smtpmail-recipient-address-list
		(smtpmail-deduce-address-list tembuf (point-min) delimline))
	  (kill-buffer smtpmail-address-buffer)

	  (smtpmail-do-bcc delimline)

	  (if (not (null smtpmail-recipient-address-list))
	      (if (not (smtpmail-via-smtp smtpmail-recipient-address-list tembuf))
		  (error "Sending failed; SMTP protocol error"))
	    (error "Sending failed; no recipients"))
	  )
      (kill-buffer tembuf)
      (if (bufferp errbuf)
	  (kill-buffer errbuf)))))


;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)

(defun smtpmail-fqdn ()
  (if smtpmail-local-domain
      (concat (system-name) "." smtpmail-local-domain)
    (system-name)))

(defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
  (let ((process nil)
	(host smtpmail-smtp-server)
	(port smtpmail-smtp-service)
	response-code
	greeting
	process-buffer)
    (unwind-protect
	(catch 'done
	  ;; get or create the trace buffer
	  (setq process-buffer
		(get-buffer-create (format "*trace of SMTP session to %s*" host)))

	  ;; clear the trace buffer of old output
	  (save-excursion
	    (set-buffer process-buffer)
	    (erase-buffer))

	  ;; open the connection to the server
	  (setq process (open-network-stream "SMTP" process-buffer host port))
	  (and (null process) (throw 'done nil))

	  ;; set the send-filter
	  (set-process-filter process 'smtpmail-process-filter)

	  (save-excursion
	    (set-buffer process-buffer)
	    (make-local-variable 'smtpmail-read-point)
	    (setq smtpmail-read-point (point-min))

	    
	    (if (or (null (car (setq greeting (smtpmail-read-response process))))
		    (not (integerp (car greeting)))
		    (>= (car greeting) 400))
		(throw 'done nil)
	      )

	    ;; HELO
	    (smtpmail-send-command process (format "HELO %s" (smtpmail-fqdn)))

	    (if (or (null (car (setq response-code (smtpmail-read-response process))))
		    (not (integerp (car response-code)))
		    (>= (car response-code) 400))
		(throw 'done nil)
	      )

	    ;; MAIL FROM: <sender>
;	    (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
	    (smtpmail-send-command process (format "MAIL FROM:%s" user-mail-address))

	    (if (or (null (car (setq response-code (smtpmail-read-response process))))
		    (not (integerp (car response-code)))
		    (>= (car response-code) 400))
		(throw 'done nil)
	      )
	    
	    ;; RCPT TO: <recipient>
	    (let ((n 0))
	      (while (not (null (nth n recipient)))
		(smtpmail-send-command process (format "RCPT TO: %s" (nth n recipient)))
		(setq n (1+ n))

		(if (or (null (car (setq response-code (smtpmail-read-response process))))
			(not (integerp (car response-code)))
			(>= (car response-code) 400))
		    (throw 'done nil)
		  )
		))
	    
	    ;; DATA
	    (smtpmail-send-command process "DATA")

	    (if (or (null (car (setq response-code (smtpmail-read-response process))))
		    (not (integerp (car response-code)))
		    (>= (car response-code) 400))
		(throw 'done nil)
	      )

	    ;; Mail contents
	    (smtpmail-send-data process smtpmail-text-buffer)

	    ;;DATA end "."
	    (smtpmail-send-command process ".")

	    (if (or (null (car (setq response-code (smtpmail-read-response process))))
		    (not (integerp (car response-code)))
		    (>= (car response-code) 400))
		(throw 'done nil)
	      )

	    ;;QUIT
;	    (smtpmail-send-command process "QUIT")
;	    (and (null (car (smtpmail-read-response process)))
;		 (throw 'done nil))
	    t ))
      (if process
	  (save-excursion
	    (set-buffer (process-buffer process))
	    (smtpmail-send-command process "QUIT")
	    (smtpmail-read-response process)

;	    (if (or (null (car (setq response-code (smtpmail-read-response process))))
;		    (not (integerp (car response-code)))
;		    (>= (car response-code) 400))
;		(throw 'done nil)
;	      )
	    (delete-process process))))))


(defun smtpmail-process-filter (process output)
  (save-excursion
    (set-buffer (process-buffer process))
    (goto-char (point-max))
    (insert output)))

(defun smtpmail-read-response (process)
  (let ((case-fold-search nil)
	(response-string nil)
	(response-continue t)
	(return-value '(nil ""))
	match-end)

;    (setq response-string nil)
;    (setq response-continue t)
;    (setq return-value '(nil ""))

    (goto-char smtpmail-read-point)
    (while response-continue
      (while (not (search-forward "\r\n" nil t))
	(accept-process-output process)
	(goto-char smtpmail-read-point))

      (setq match-end (point))
      (if (null response-string)
	  (setq response-string
		(buffer-substring smtpmail-read-point (- match-end 2))))
	
      (goto-char smtpmail-read-point)
      (if (looking-at "[0-9]+ ")
	  (progn (setq response-continue nil)
;		 (setq return-value response-string)

		 (if smtpmail-debug-info
		     (message response-string))

		 (setq smtpmail-read-point match-end)
		 (setq return-value
		       (cons (string-to-int 
			      (buffer-substring (match-beginning 0) (match-end 0))) 
			     response-string)))
	
	(if (looking-at "[0-9]+-")
	    (progn (setq smtpmail-read-point match-end)
		   (setq response-continue t))
	  (progn
	    (setq smtpmail-read-point match-end)
	    (setq response-continue nil)
	    (setq return-value 
		  (cons nil response-string))
	    )
	  )))
    (setq smtpmail-read-point match-end)
    return-value))


(defun smtpmail-send-command (process command)
  (goto-char (point-max))
  (if (= (aref command 0) ?P)
      (insert "PASS <omitted>\r\n")
    (insert command "\r\n"))
  (setq smtpmail-read-point (point))
  (process-send-string process command)
  (process-send-string process "\r\n"))

(defun smtpmail-send-data-1 (process data)
  (goto-char (point-max))

  (if (not (null smtpmail-code-conv-from))
      (setq data (code-convert-string data smtpmail-code-conv-from *internal*)))
	
  (if smtpmail-debug-info
      (insert data "\r\n"))

  (setq smtpmail-read-point (point))
  (process-send-string process data)
  ;; . -> ..
  (if (string-equal data ".")
      (process-send-string process "."))
  (process-send-string process "\r\n")
  )

(defun smtpmail-send-data (process buffer)
  (let
      ((data-continue t)
       (sending-data nil)
       this-line
       this-line-end)

    (save-excursion
      (set-buffer buffer)
      (goto-char (point-min)))

    (while data-continue
      (save-excursion
	(set-buffer buffer)
	(beginning-of-line)
	(setq this-line (point))
	(end-of-line)
	(setq this-line-end (point))
	(setq sending-data nil)
	(setq sending-data (buffer-substring this-line this-line-end))
	(if (/= (forward-line 1) 0)
	    (setq data-continue nil)))

      (smtpmail-send-data-1 process sending-data)
      )
    )
  )
    

(defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end)
  "Get address list suitable for smtp RCPT TO: <address>."
  (require 'mail-utils)  ;; pick up mail-strip-quoted-names
  (let
      ((case-fold-search t)
       (simple-address-list "")
       this-line
       this-line-end)
    
    (unwind-protect
	(save-excursion
	  ;;
	  (set-buffer smtpmail-address-buffer) (erase-buffer)
	  (insert-buffer-substring smtpmail-text-buffer header-start header-end)
	  (goto-char (point-min))
	  (while (re-search-forward "^\\(TO:\\|CC:\\|BCC:\\)" header-end t)
	    (replace-match "")
	    (setq this-line (match-beginning 0))
	    (forward-line 1)
	    ;; get any continuation lines
	    (while (and (looking-at "^[ \t]+") (< (point) header-end))
	      (forward-line 1))
	    (setq this-line-end (point-marker))
	    (setq simple-address-list
		  (concat simple-address-list " "
			  (mail-strip-quoted-names (buffer-substring this-line this-line-end))))
	    )
	  (erase-buffer)
	  (insert-string " ")
	  (insert-string simple-address-list)
	  (insert-string "\n")
	  (subst-char-in-region (point-min) (point-max) 10 ?  t);; newline --> blank
	  (subst-char-in-region (point-min) (point-max) ?, ?  t);; comma   --> blank
	  (subst-char-in-region (point-min) (point-max)  9 ?  t);; tab     --> blank

	  (goto-char (point-min))
	  ;; tidyness in case hook is not robust when it looks at this
	  (while (re-search-forward "[ \t]+" header-end t) (replace-match " "))

	  (goto-char (point-min))
	  (let (recipient-address-list)
	    (while (re-search-forward " \\([^ ]+\\) " (point-max) t)
	      (backward-char 1)
	      (setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1))
						 recipient-address-list))
	      )
	    (setq smtpmail-recipient-address-list recipient-address-list))

	  )
      )
    )
  )


(defun smtpmail-do-bcc (header-end)
  "Delete BCC: and their continuation lines from the header area.
There may be multiple BCC: lines, and each may have arbitrarily
many continuation lines."
  (let ((case-fold-search t))
	(save-excursion (goto-char (point-min))
	  ;; iterate over all BCC: lines
	  (while (re-search-forward "^BCC:" header-end t)
	        (delete-region (match-beginning 0) (progn (forward-line 1) (point)))
		;; get rid of any continuation lines
		(while (and (looking-at "^[ \t].*\n") (< (point) header-end))
		  (replace-match ""))
		)
	  ) ;; save-excursion
	) ;; let
  )


(provide 'smtpmail)

;; smtpmail.el ends here
Commit	Line	Data
24975917 RS	1	;; Simple SMTP protocol (RFC 821) for sending mail
24975917 RS	2
e2f7c221	3	;; Copyright (C) 1995, 1996 Free Software Foundation, Inc.
24975917 RS	4
24975917 RS	5	;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
0e2701ca	6	;; Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
24975917 RS	7	;; Keywords: mail
	8
	9	;; This file is part of GNU Emacs.
	10
	11	;; GNU Emacs is free software; you can redistribute it and/or modify
	12	;; it under the terms of the GNU General Public License as published by
	13	;; the Free Software Foundation; either version 2, or (at your option)
	14	;; any later version.
	15
	16	;; GNU Emacs is distributed in the hope that it will be useful,
	17	;; but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	;; GNU General Public License for more details.
	20
	21	;; You should have received a copy of the GNU General Public License
	22	;; along with GNU Emacs; see the file COPYING. If not, write to the
	23	;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	24	;; Boston, MA 02111-1307, USA.
	25
	26	;;; Commentary:
	27
	28	;; Send Mail to smtp host from smtpmail temp buffer.
24975917 RS	29
	30	;; Please add these lines in your .emacs(_emacs).
	31	;;
	32	;;(setq send-mail-function 'smtpmail-send-it)
	33	;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
	34	;;(setq smtpmail-smtp-service "smtp")
	35	;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
	36	;;(setq smtpmail-debug-info t)
	37	;;(load-library "smtpmail")
	38	;;(setq smtpmail-code-conv-from nil)
0e2701ca	39	;;(setq user-full-name "YOUR NAME HERE")
24975917 RS	40
	41	;;; Code:
	42
	43	(require 'sendmail)
	44
	45	;;;
	46	(defvar smtpmail-default-smtp-server nil
	47	"*Specify default SMTP server.")
	48
e2f7c221 RS	49	(defvar smtpmail-smtp-server
e2f7c221 RS	50	(or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
24975917 RS	51	"*The name of the host running SMTP server.")
24975917 RS	52
e2f7c221	53	(defvar smtpmail-smtp-service 25
24975917 RS	54	"*SMTP service port number. smtp or 25 .")
	55
	56	(defvar smtpmail-local-domain nil
	57	"*Local domain name without a host name.
	58	If the function (system-name) returns the full internet address,
	59	don't define this value.")
	60
	61	(defvar smtpmail-debug-info nil
	62	"*smtpmail debug info printout. messages and process buffer.")
	63
	64	(defvar smtpmail-code-conv-from nil ;; junet
	65	"smtpmail code convert from this code to internal*..for tiny-mime..")
	66
	67	;;;
	68	;;;
	69	;;;
	70
	71	(defun smtpmail-send-it ()
e2f7c221	72	(require 'mail-utils)
24975917 RS	73	(let ((errbuf (if mail-interactive
	74	(generate-new-buffer " smtpmail errors")
	75	0))
	76	(tembuf (generate-new-buffer " smtpmail temp"))
	77	(case-fold-search nil)
	78	resend-to-addresses
	79	delimline
	80	(mailbuf (current-buffer)))
	81	(unwind-protect
	82	(save-excursion
	83	(set-buffer tembuf)
	84	(erase-buffer)
	85	(insert-buffer-substring mailbuf)
	86	(goto-char (point-max))
	87	;; require one newline at the end.
	88	(or (= (preceding-char) ?\n)
	89	(insert ?\n))
	90	;; Change header-delimiter to be what sendmail expects.
	91	(goto-char (point-min))
	92	(re-search-forward
	93	(concat "^" (regexp-quote mail-header-separator) "\n"))
	94	(replace-match "\n")
	95	(backward-char 1)
	96	(setq delimline (point-marker))
e2f7c221	97	;; (sendmail-synch-aliases)
24975917 RS	98	(if mail-aliases
	99	(expand-mail-aliases (point-min) delimline))
	100	(goto-char (point-min))
	101	;; ignore any blank lines in the header
	102	(while (and (re-search-forward "\n\n\n*" delimline t)
	103	(< (point) delimline))
	104	(replace-match "\n"))
	105	(let ((case-fold-search t))
	106	(goto-char (point-min))
24975917	107	(goto-char (point-min))
24975917 RS	108	(while (re-search-forward "^Resent-to:" delimline t)
	109	(setq resend-to-addresses
	110	(save-restriction
	111	(narrow-to-region (point)
	112	(save-excursion
	113	(end-of-line)
	114	(point)))
	115	(append (mail-parse-comma-list)
	116	resend-to-addresses))))
	117	;;; Apparently this causes a duplicate Sender.
	118	;;; ;; If the From is different than current user, insert Sender.
	119	;;; (goto-char (point-min))
	120	;;; (and (re-search-forward "^From:" delimline t)
	121	;;; (progn
	122	;;; (require 'mail-utils)
	123	;;; (not (string-equal
	124	;;; (mail-strip-quoted-names
	125	;;; (save-restriction
	126	;;; (narrow-to-region (point-min) delimline)
	127	;;; (mail-fetch-field "From")))
	128	;;; (user-login-name))))
	129	;;; (progn
	130	;;; (forward-line 1)
	131	;;; (insert "Sender: " (user-login-name) "\n")))
24975917 RS	132	;; Don't send out a blank subject line
	133	(goto-char (point-min))
	134	(if (re-search-forward "^Subject:[ \t]*\n" delimline t)
	135	(replace-match ""))
0e2701ca RS	136	;; Put the "From:" field in unless for some odd reason
	137	;; they put one in themselves.
	138	(goto-char (point-min))
	139	(if (not (re-search-forward "^From:" delimline t))
	140	(let* ((login user-mail-address)
	141	(fullname (user-full-name)))
	142	(cond ((eq mail-from-style 'angles)
	143	(insert "From: " fullname)
	144	(let ((fullname-start (+ (point-min) 6))
	145	(fullname-end (point-marker)))
	146	(goto-char fullname-start)
	147	;; Look for a character that cannot appear unquoted
	148	;; according to RFC 822.
	149	(if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
	150	fullname-end 1)
	151	(progn
	152	;; Quote fullname, escaping specials.
	153	(goto-char fullname-start)
	154	(insert "\"")
	155	(while (re-search-forward "[\"\\]"
	156	fullname-end 1)
	157	(replace-match "\\\\\\&" t))
	158	(insert "\""))))
	159	(insert " <" login ">\n"))
	160	((eq mail-from-style 'parens)
	161	(insert "From: " login " (")
	162	(let ((fullname-start (point)))
	163	(insert fullname)
	164	(let ((fullname-end (point-marker)))
	165	(goto-char fullname-start)
	166	;; RFC 822 says \ and nonmatching parentheses
	167	;; must be escaped in comments.
	168	;; Escape every instance of ()\ ...
	169	(while (re-search-forward "[()\\]" fullname-end 1)
	170	(replace-match "\\\\\\&" t))
	171	;; ... then undo escaping of matching parentheses,
	172	;; including matching nested parentheses.
	173	(goto-char fullname-start)
	174	(while (re-search-forward
	175	"\\(\\=\\\|[^\\]\\(\\\\\\\\\\)\\)\\\\(\\(\\([^\\]\\\|\\\\\\\\\\)\\)\\\\)"
	176	fullname-end 1)
	177	(replace-match "\\1(\\3)" t)
	178	(goto-char fullname-start))))
	179	(insert ")\n"))
	180	((null mail-from-style)
	181	(insert "From: " login "\n")))))
24975917 RS	182	;; Insert an extra newline if we need it to work around
	183	;; Sun's bug that swallows newlines.
	184	(goto-char (1+ delimline))
	185	(if (eval mail-mailer-swallows-blank-line)
	186	(newline))
0e2701ca RS	187	;; Find and handle any FCC fields.
	188	(goto-char (point-min))
	189	(if (re-search-forward "^FCC:" delimline t)
	190	(mail-do-fcc delimline))
24975917 RS	191	(if mail-interactive
	192	(save-excursion
	193	(set-buffer errbuf)
	194	(erase-buffer))))
	195	;;
	196	;;
	197	;;
	198	(setq smtpmail-address-buffer (generate-new-buffer "smtp-mail"))
	199	(setq smtpmail-recipient-address-list
	200	(smtpmail-deduce-address-list tembuf (point-min) delimline))
	201	(kill-buffer smtpmail-address-buffer)
	202
	203	(smtpmail-do-bcc delimline)
	204
	205	(if (not (null smtpmail-recipient-address-list))
	206	(if (not (smtpmail-via-smtp smtpmail-recipient-address-list tembuf))
8805249b RS	207	(error "Sending failed; SMTP protocol error"))
8805249b RS	208	(error "Sending failed; no recipients"))
24975917 RS	209	)
	210	(kill-buffer tembuf)
	211	(if (bufferp errbuf)
	212	(kill-buffer errbuf)))))
	213
	214
	215	;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
	216
	217	(defun smtpmail-fqdn ()
	218	(if smtpmail-local-domain
	219	(concat (system-name) "." smtpmail-local-domain)
	220	(system-name)))
	221
	222	(defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
	223	(let ((process nil)
8805249b RS	224	(host smtpmail-smtp-server)
8805249b RS	225	(port smtpmail-smtp-service)
24975917	226	response-code
8805249b RS	227	greeting
8805249b RS	228	process-buffer)
24975917 RS	229	(unwind-protect
	230	(catch 'done
	231	;; get or create the trace buffer
	232	(setq process-buffer
	233	(get-buffer-create (format "trace of SMTP session to %s" host)))
	234
	235	;; clear the trace buffer of old output
	236	(save-excursion
	237	(set-buffer process-buffer)
	238	(erase-buffer))
	239
	240	;; open the connection to the server
	241	(setq process (open-network-stream "SMTP" process-buffer host port))
	242	(and (null process) (throw 'done nil))
	243
	244	;; set the send-filter
	245	(set-process-filter process 'smtpmail-process-filter)
	246
	247	(save-excursion
	248	(set-buffer process-buffer)
	249	(make-local-variable 'smtpmail-read-point)
	250	(setq smtpmail-read-point (point-min))
	251
	252
	253	(if (or (null (car (setq greeting (smtpmail-read-response process))))
	254	(not (integerp (car greeting)))
	255	(>= (car greeting) 400))
	256	(throw 'done nil)
	257	)
	258
	259	;; HELO
	260	(smtpmail-send-command process (format "HELO %s" (smtpmail-fqdn)))
	261
	262	(if (or (null (car (setq response-code (smtpmail-read-response process))))
	263	(not (integerp (car response-code)))
	264	(>= (car response-code) 400))
	265	(throw 'done nil)
	266	)
	267
	268	;; MAIL FROM: <sender>
	269	; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
	270	(smtpmail-send-command process (format "MAIL FROM:%s" user-mail-address))
	271
	272	(if (or (null (car (setq response-code (smtpmail-read-response process))))
	273	(not (integerp (car response-code)))
	274	(>= (car response-code) 400))
	275	(throw 'done nil)
	276	)
	277
	278	;; RCPT TO: <recipient>
8805249b RS	279	(let ((n 0))
	280	(while (not (null (nth n recipient)))
	281	(smtpmail-send-command process (format "RCPT TO: %s" (nth n recipient)))
	282	(setq n (1+ n))
	283
	284	(if (or (null (car (setq response-code (smtpmail-read-response process))))
	285	(not (integerp (car response-code)))
	286	(>= (car response-code) 400))
	287	(throw 'done nil)
	288	)
	289	))
24975917 RS	290
	291	;; DATA
	292	(smtpmail-send-command process "DATA")
	293
	294	(if (or (null (car (setq response-code (smtpmail-read-response process))))
	295	(not (integerp (car response-code)))
	296	(>= (car response-code) 400))
	297	(throw 'done nil)
	298	)
	299
	300	;; Mail contents
	301	(smtpmail-send-data process smtpmail-text-buffer)
	302
	303	;;DATA end "."
	304	(smtpmail-send-command process ".")
	305
	306	(if (or (null (car (setq response-code (smtpmail-read-response process))))
	307	(not (integerp (car response-code)))
	308	(>= (car response-code) 400))
	309	(throw 'done nil)
	310	)
	311
	312	;;QUIT
	313	; (smtpmail-send-command process "QUIT")
	314	; (and (null (car (smtpmail-read-response process)))
	315	; (throw 'done nil))
	316	t ))
	317	(if process
	318	(save-excursion
	319	(set-buffer (process-buffer process))
	320	(smtpmail-send-command process "QUIT")
	321	(smtpmail-read-response process)
	322
	323	; (if (or (null (car (setq response-code (smtpmail-read-response process))))
	324	; (not (integerp (car response-code)))
	325	; (>= (car response-code) 400))
	326	; (throw 'done nil)
	327	; )
	328	(delete-process process))))))
	329
	330
24975917 RS	331	(defun smtpmail-process-filter (process output)
	332	(save-excursion
	333	(set-buffer (process-buffer process))
	334	(goto-char (point-max))
	335	(insert output)))
	336
24975917 RS	337	(defun smtpmail-read-response (process)
	338	(let ((case-fold-search nil)
	339	(response-string nil)
	340	(response-continue t)
	341	(return-value '(nil ""))
	342	match-end)
	343
	344	; (setq response-string nil)
	345	; (setq response-continue t)
	346	; (setq return-value '(nil ""))
	347
	348	(goto-char smtpmail-read-point)
	349	(while response-continue
	350	(while (not (search-forward "\r\n" nil t))
	351	(accept-process-output process)
	352	(goto-char smtpmail-read-point))
	353
	354	(setq match-end (point))
	355	(if (null response-string)
	356	(setq response-string
	357	(buffer-substring smtpmail-read-point (- match-end 2))))
	358
	359	(goto-char smtpmail-read-point)
	360	(if (looking-at "[0-9]+ ")
	361	(progn (setq response-continue nil)
	362	; (setq return-value response-string)
	363
	364	(if smtpmail-debug-info
	365	(message response-string))
	366
	367	(setq smtpmail-read-point match-end)
	368	(setq return-value
	369	(cons (string-to-int
	370	(buffer-substring (match-beginning 0) (match-end 0)))
	371	response-string)))
	372
	373	(if (looking-at "[0-9]+-")
	374	(progn (setq smtpmail-read-point match-end)
	375	(setq response-continue t))
	376	(progn
	377	(setq smtpmail-read-point match-end)
	378	(setq response-continue nil)
	379	(setq return-value
	380	(cons nil response-string))
	381	)
	382	)))
	383	(setq smtpmail-read-point match-end)
	384	return-value))
	385
	386
24975917 RS	387	(defun smtpmail-send-command (process command)
	388	(goto-char (point-max))
	389	(if (= (aref command 0) ?P)
	390	(insert "PASS <omitted>\r\n")
	391	(insert command "\r\n"))
	392	(setq smtpmail-read-point (point))
	393	(process-send-string process command)
	394	(process-send-string process "\r\n"))
	395
24975917 RS	396	(defun smtpmail-send-data-1 (process data)
	397	(goto-char (point-max))
	398
	399	(if (not (null smtpmail-code-conv-from))
	400	(setq data (code-convert-string data smtpmail-code-conv-from internal)))
	401
	402	(if smtpmail-debug-info
	403	(insert data "\r\n"))
	404
	405	(setq smtpmail-read-point (point))
	406	(process-send-string process data)
	407	;; . -> ..
	408	(if (string-equal data ".")
	409	(process-send-string process "."))
	410	(process-send-string process "\r\n")
	411	)
	412
	413	(defun smtpmail-send-data (process buffer)
	414	(let
	415	((data-continue t)
	416	(sending-data nil)
	417	this-line
	418	this-line-end)
	419
	420	(save-excursion
	421	(set-buffer buffer)
	422	(goto-char (point-min)))
	423
	424	(while data-continue
	425	(save-excursion
	426	(set-buffer buffer)
	427	(beginning-of-line)
	428	(setq this-line (point))
	429	(end-of-line)
	430	(setq this-line-end (point))
	431	(setq sending-data nil)
	432	(setq sending-data (buffer-substring this-line this-line-end))
	433	(if (/= (forward-line 1) 0)
	434	(setq data-continue nil)))
	435
	436	(smtpmail-send-data-1 process sending-data)
	437	)
	438	)
	439	)
	440
	441
	442	(defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end)
	443	"Get address list suitable for smtp RCPT TO: <address>."
	444	(require 'mail-utils) ;; pick up mail-strip-quoted-names
	445	(let
	446	((case-fold-search t)
	447	(simple-address-list "")
	448	this-line
	449	this-line-end)
	450
	451	(unwind-protect
	452	(save-excursion
	453	;;
	454	(set-buffer smtpmail-address-buffer) (erase-buffer)
	455	(insert-buffer-substring smtpmail-text-buffer header-start header-end)
	456	(goto-char (point-min))
	457	(while (re-search-forward "^\\(TO:\\\|CC:\\\|BCC:\\)" header-end t)
	458	(replace-match "")
	459	(setq this-line (match-beginning 0))
460	(forward-line 1)
461	;; get any continuation lines
462	(while (and (looking-at "^[ \t]+") (< (point) header-end))
463	(forward-line 1))
464	(setq this-line-end (point-marker))
465	(setq simple-address-list
466	(concat simple-address-list " "
467	(mail-strip-quoted-names (buffer-substring this-line this-line-end))))
468	)
469	(erase-buffer)
470	(insert-string " ")
471	(insert-string simple-address-list)
472	(insert-string "\n")
473	(subst-char-in-region (point-min) (point-max) 10 ? t);; newline --> blank
474	(subst-char-in-region (point-min) (point-max) ?, ? t);; comma --> blank
475	(subst-char-in-region (point-min) (point-max) 9 ? t);; tab --> blank
476
477	(goto-char (point-min))
478	;; tidyness in case hook is not robust when it looks at this
479	(while (re-search-forward "[ \t]+" header-end t) (replace-match " "))
480
481	(goto-char (point-min))
8805249b	482	(let (recipient-address-list)
e2f7c221	483	(while (re-search-forward " \\([^ ]+\\) " (point-max) t)
8805249b	484	(backward-char 1)
e2f7c221 RS	485	(setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1))
e2f7c221 RS	486	recipient-address-list))
8805249b RS	487	)
8805249b RS	488	(setq smtpmail-recipient-address-list recipient-address-list))
24975917 RS	489
	490	)
	491	)
	492	)
	493	)
	494
	495
	496	(defun smtpmail-do-bcc (header-end)
	497	"Delete BCC: and their continuation lines from the header area.
	498	There may be multiple BCC: lines, and each may have arbitrarily
	499	many continuation lines."
	500	(let ((case-fold-search t))
	501	(save-excursion (goto-char (point-min))
	502	;; iterate over all BCC: lines
	503	(while (re-search-forward "^BCC:" header-end t)
	504	(delete-region (match-beginning 0) (progn (forward-line 1) (point)))
	505	;; get rid of any continuation lines
	506	(while (and (looking-at "^[ \t].*\n") (< (point) header-end))
	507	(replace-match ""))
	508	)
	509	) ;; save-excursion
	510	) ;; let
	511	)
	512
	513
	514
	515	(provide 'smtpmail)
	516
	517	;; smtpmail.el ends here