--- /dev/null
+;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail
+
+;; Copyright (C) 1995, 1996, 2001, 2002, 2003, 2004, 2005,
+;; 2006 Free Software Foundation, Inc.
+
+;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
+;; Maintainer: Simon Josefsson <simon@josefsson.org>
+;; w32 Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
+;; ESMTP support: Simon Leinen <simon@switch.ch>
+;; Hacked by Mike Taylor, 11th October 1999 to add support for
+;; automatically appending a domain to RCPT TO: addresses.
+;; AUTH=LOGIN support: Stephen Cranefield <scranefield@infoscience.otago.ac.nz>
+;; 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., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+
+;; Send Mail to smtp host from smtpmail temp buffer.
+
+;; Please add these lines in your .emacs(_emacs) or use customize.
+;;
+;;(setq send-mail-function 'smtpmail-send-it) ; if you use `mail'
+;;(setq message-send-mail-function 'smtpmail-send-it) ; if you use message/Gnus
+;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
+;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
+;;(setq smtpmail-sendto-domain "YOUR DOMAIN NAME")
+;;(setq smtpmail-debug-info t) ; only to debug problems
+;;(setq smtpmail-auth-credentials ; or use ~/.authinfo
+;; '(("YOUR SMTP HOST" 25 "username" "password")))
+;;(setq smtpmail-starttls-credentials
+;; '(("YOUR SMTP HOST" 25 "~/.my_smtp_tls.key" "~/.my_smtp_tls.cert")))
+;; Where the 25 equals the value of `smtpmail-smtp-service', it can be an
+;; integer or a string, just as long as they match (eq).
+
+;; To queue mail, set smtpmail-queue-mail to t and use
+;; smtpmail-send-queued-mail to send.
+
+;; Modified by Stephen Cranefield <scranefield@infoscience.otago.ac.nz>,
+;; 22/6/99, to support SMTP Authentication by the AUTH=LOGIN mechanism.
+;; See http://help.netscape.com/products/server/messaging/3x/info/smtpauth.html
+;; Rewritten by Simon Josefsson to use same credential variable as AUTH
+;; support below.
+
+;; Modified by Simon Josefsson <jas@pdc.kth.se>, 22/2/99, to support SMTP
+;; Authentication by the AUTH mechanism.
+;; See http://www.ietf.org/rfc/rfc2554.txt
+
+;; Modified by Simon Josefsson <simon@josefsson.org>, 2000-10-07, to support
+;; STARTTLS. Requires external program
+;; ftp://ftp.opaopa.org/pub/elisp/starttls-*.tar.gz.
+;; See http://www.ietf.org/rfc/rfc2246.txt, http://www.ietf.org/rfc/rfc2487.txt
+
+;;; Code:
+
+(require 'sendmail)
+(autoload 'starttls-open-stream "starttls")
+(autoload 'starttls-negotiate "starttls")
+(autoload 'mail-strip-quoted-names "mail-utils")
+(autoload 'message-make-date "message")
+(autoload 'message-make-message-id "message")
+(autoload 'rfc2104-hash "rfc2104")
+(autoload 'netrc-parse "netrc")
+(autoload 'netrc-machine "netrc")
+(autoload 'netrc-get "netrc")
+
+;;;
+(defgroup smtpmail nil
+ "SMTP protocol for sending mail."
+ :group 'mail)
+
+
+(defcustom smtpmail-default-smtp-server nil
+ "*Specify default SMTP server.
+This only has effect if you specify it before loading the smtpmail library."
+ :type '(choice (const nil) string)
+ :group 'smtpmail)
+
+(defcustom smtpmail-smtp-server
+ (or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
+ "*The name of the host running SMTP server."
+ :type '(choice (const nil) string)
+ :group 'smtpmail)
+
+(defcustom smtpmail-smtp-service 25
+ "*SMTP service port number.
+The default value would be \"smtp\" or 25 ."
+ :type '(choice (integer :tag "Port") (string :tag "Service"))
+ :group 'smtpmail)
+
+(defcustom 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."
+ :type '(choice (const nil) string)
+ :group 'smtpmail)
+
+(defcustom smtpmail-sendto-domain nil
+ "*Local domain name without a host name.
+This is appended (with an @-sign) to any specified recipients which do
+not include an @-sign, so that each RCPT TO address is fully qualified.
+\(Some configurations of sendmail require this.)
+
+Don't bother to set this unless you have get an error like:
+ Sending failed; SMTP protocol error
+when sending mail, and the *trace of SMTP session to <somewhere>*
+buffer includes an exchange like:
+ RCPT TO: <someone>
+ 501 <someone>: recipient address must contain a domain
+"
+ :type '(choice (const nil) string)
+ :group 'smtpmail)
+
+(defcustom smtpmail-debug-info nil
+ "Whether to print info in buffer *trace of SMTP session to <somewhere>*.
+See also `smtpmail-debug-verb' which determines if the SMTP protocol should
+be verbose as well."
+ :type 'boolean
+ :group 'smtpmail)
+
+(defcustom smtpmail-debug-verb nil
+ "Whether this library sends the SMTP VERB command or not.
+The commands enables verbose information from the SMTP server."
+ :type 'boolean
+ :group 'smtpmail)
+
+(defcustom smtpmail-code-conv-from nil ;; *junet*
+ "*smtpmail code convert from this code to *internal*..for tiny-mime.."
+ :type 'boolean
+ :group 'smtpmail)
+
+(defcustom smtpmail-queue-mail nil
+ "*Specify if mail is queued (if t) or sent immediately (if nil).
+If queued, it is stored in the directory `smtpmail-queue-dir'
+and sent with `smtpmail-send-queued-mail'."
+ :type 'boolean
+ :group 'smtpmail)
+
+(defcustom smtpmail-queue-dir "~/Mail/queued-mail/"
+ "*Directory where `smtpmail.el' stores queued mail."
+ :type 'directory
+ :group 'smtpmail)
+
+(defcustom smtpmail-auth-credentials "~/.authinfo"
+ "Specify username and password for servers, directly or via .netrc file.
+This variable can either be a filename pointing to a file in netrc(5)
+format, or list of four-element lists that contain, in order,
+`servername' (a string), `port' (an integer), `user' (a string) and
+`password' (a string, or nil to query the user when needed). If you
+need to enter a `realm' too, add it to the user string, so that it
+looks like `user@realm'."
+ :type '(choice file
+ (repeat (list (string :tag "Server")
+ (integer :tag "Port")
+ (string :tag "Username")
+ (choice (const :tag "Query when needed" nil)
+ (string :tag "Password")))))
+ :version "22.1"
+ :group 'smtpmail)
+
+(defcustom smtpmail-starttls-credentials '(("" 25 "" ""))
+ "Specify STARTTLS keys and certificates for servers.
+This is a list of four-element list with `servername' (a string),
+`port' (an integer), `key' (a filename) and `certificate' (a filename)."
+ :type '(repeat (list (string :tag "Server")
+ (integer :tag "Port")
+ (file :tag "Key")
+ (file :tag "Certificate")))
+ :version "21.1"
+ :group 'smtpmail)
+
+(defcustom smtpmail-warn-about-unknown-extensions nil
+ "*If set, print warnings about unknown SMTP extensions.
+This is mainly useful for development purposes, to learn about
+new SMTP extensions that might be useful to support."
+ :type 'boolean
+ :version "21.1"
+ :group 'smtpmail)
+
+(defvar smtpmail-queue-index-file "index"
+ "File name of queued mail index,
+This is relative to `smtpmail-queue-dir'.")
+
+(defvar smtpmail-address-buffer)
+(defvar smtpmail-recipient-address-list)
+
+(defvar smtpmail-queue-counter 0)
+
+;; Buffer-local variable.
+(defvar smtpmail-read-point)
+
+(defvar smtpmail-queue-index (concat smtpmail-queue-dir
+ smtpmail-queue-index-file))
+
+(defconst smtpmail-auth-supported '(cram-md5 plain login)
+ "List of supported SMTP AUTH mechanisms.")
+
+;;;
+;;;
+;;;
+
+(defvar smtpmail-mail-address nil
+ "Value to use for envelope-from address for mail from ambient buffer.")
+
+;;;###autoload
+(defun smtpmail-send-it ()
+ (let ((errbuf (if mail-interactive
+ (generate-new-buffer " smtpmail errors")
+ 0))
+ (tembuf (generate-new-buffer " smtpmail temp"))
+ (case-fold-search nil)
+ delimline
+ (mailbuf (current-buffer))
+ ;; Examine this variable now, so that
+ ;; local binding in the mail buffer will take effect.
+ (smtpmail-mail-address
+ (or (and mail-specify-envelope-from (mail-envelope-from))
+ user-mail-address))
+ (smtpmail-code-conv-from
+ (if enable-multibyte-characters
+ (let ((sendmail-coding-system smtpmail-code-conv-from))
+ (select-message-coding-system)))))
+ (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.
+ (mail-sendmail-undelimit-header)
+ (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))
+ ;; We used to process Resent-... headers here,
+ ;; but it was not done properly, and the job
+ ;; is done correctly in smtpmail-deduce-address-list.
+ ;; Don't send out a blank subject line
+ (goto-char (point-min))
+ (if (re-search-forward "^Subject:\\([ \t]*\n\\)+\\b" delimline t)
+ (replace-match "")
+ ;; This one matches a Subject just before the header delimiter.
+ (if (and (re-search-forward "^Subject:\\([ \t]*\n\\)+" delimline t)
+ (= (match-end 0) delimline))
+ (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 smtpmail-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 a `Message-Id:' field if there isn't one yet.
+ (goto-char (point-min))
+ (unless (re-search-forward "^Message-Id:" delimline t)
+ (insert "Message-Id: " (message-make-message-id) "\n"))
+ ;; Insert a `Date:' field if there isn't one yet.
+ (goto-char (point-min))
+ (unless (re-search-forward "^Date:" delimline t)
+ (insert "Date: " (message-make-date) "\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
+ (with-current-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)
+ ; Send or queue
+ (if (not smtpmail-queue-mail)
+ (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"))
+ (let* ((file-data
+ (expand-file-name
+ (format "%s_%i"
+ (format-time-string "%Y-%m-%d_%H:%M:%S")
+ (setq smtpmail-queue-counter
+ (1+ smtpmail-queue-counter)))
+ smtpmail-queue-dir))
+ (file-data (convert-standard-filename file-data))
+ (file-elisp (concat file-data ".el"))
+ (buffer-data (create-file-buffer file-data))
+ (buffer-elisp (create-file-buffer file-elisp))
+ (buffer-scratch "*queue-mail*"))
+ (unless (file-exists-p smtpmail-queue-dir)
+ (make-directory smtpmail-queue-dir t))
+ (with-current-buffer buffer-data
+ (erase-buffer)
+ (insert-buffer-substring tembuf)
+ (write-file file-data)
+ (set-buffer buffer-elisp)
+ (erase-buffer)
+ (insert (concat
+ "(setq smtpmail-recipient-address-list '"
+ (prin1-to-string smtpmail-recipient-address-list)
+ ")\n"))
+ (write-file file-elisp)
+ (set-buffer (generate-new-buffer buffer-scratch))
+ (insert (concat file-data "\n"))
+ (append-to-file (point-min)
+ (point-max)
+ smtpmail-queue-index)
+ )
+ (kill-buffer buffer-scratch)
+ (kill-buffer buffer-data)
+ (kill-buffer buffer-elisp))))
+ (kill-buffer tembuf)
+ (if (bufferp errbuf)
+ (kill-buffer errbuf)))))
+
+;;;###autoload
+(defun smtpmail-send-queued-mail ()
+ "Send mail that was queued as a result of setting `smtpmail-queue-mail'."
+ (interactive)
+ (with-temp-buffer
+ ;;; Get index, get first mail, send it, update index, get second
+ ;;; mail, send it, etc...
+ (let ((file-msg ""))
+ (insert-file-contents smtpmail-queue-index)
+ (goto-char (point-min))
+ (while (not (eobp))
+ (setq file-msg (buffer-substring (point) (line-end-position)))
+ (load file-msg)
+ ;; Insert the message literally: it is already encoded as per
+ ;; the MIME headers, and code conversions might guess the
+ ;; encoding wrongly.
+ (with-temp-buffer
+ (let ((coding-system-for-read 'no-conversion))
+ (insert-file-contents file-msg))
+ (let ((smtpmail-mail-address
+ (or (and mail-specify-envelope-from (mail-envelope-from))
+ user-mail-address)))
+ (if (not (null smtpmail-recipient-address-list))
+ (if (not (smtpmail-via-smtp smtpmail-recipient-address-list
+ (current-buffer)))
+ (error "Sending failed; SMTP protocol error"))
+ (error "Sending failed; no recipients"))))
+ (delete-file file-msg)
+ (delete-file (concat file-msg ".el"))
+ (delete-region (point-at-bol) (point-at-bol 2)))
+ (write-region (point-min) (point-max) smtpmail-queue-index))))
+
+;(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)))
+
+(defsubst smtpmail-cred-server (cred)
+ (nth 0 cred))
+
+(defsubst smtpmail-cred-port (cred)
+ (nth 1 cred))
+
+(defsubst smtpmail-cred-key (cred)
+ (nth 2 cred))
+
+(defsubst smtpmail-cred-user (cred)
+ (nth 2 cred))
+
+(defsubst smtpmail-cred-cert (cred)
+ (nth 3 cred))
+
+(defsubst smtpmail-cred-passwd (cred)
+ (nth 3 cred))
+
+(defun smtpmail-find-credentials (cred server port)
+ (catch 'done
+ (let ((l cred) el)
+ (while (setq el (pop l))
+ (when (and (equal server (smtpmail-cred-server el))
+ (equal port (smtpmail-cred-port el)))
+ (throw 'done el))))))
+
+(defun smtpmail-maybe-append-domain (recipient)
+ (if (or (not smtpmail-sendto-domain)
+ (string-match "@" recipient))
+ recipient
+ (concat recipient "@" smtpmail-sendto-domain)))
+
+(defun smtpmail-intersection (list1 list2)
+ (let ((result nil))
+ (dolist (el2 list2)
+ (when (memq el2 list1)
+ (push el2 result)))
+ (nreverse result)))
+
+(defvar starttls-extra-args)
+(defvar starttls-extra-arguments)
+
+(defun smtpmail-open-stream (process-buffer host port)
+ (let ((cred (smtpmail-find-credentials
+ smtpmail-starttls-credentials host port)))
+ (if (null (and cred (condition-case ()
+ (with-no-warnings
+ (require 'starttls)
+ (call-process (if starttls-use-gnutls
+ starttls-gnutls-program
+ starttls-program)))
+ (error nil))))
+ ;; The normal case.
+ (open-network-stream "SMTP" process-buffer host port)
+ (let* ((cred-key (smtpmail-cred-key cred))
+ (cred-cert (smtpmail-cred-cert cred))
+ (starttls-extra-args
+ (append
+ starttls-extra-args
+ (when (and (stringp cred-key) (stringp cred-cert)
+ (file-regular-p
+ (setq cred-key (expand-file-name cred-key)))
+ (file-regular-p
+ (setq cred-cert (expand-file-name cred-cert))))
+ (list "--key-file" cred-key "--cert-file" cred-cert))))
+ (starttls-extra-arguments
+ (append
+ starttls-extra-arguments
+ (when (and (stringp cred-key) (stringp cred-cert)
+ (file-regular-p
+ (setq cred-key (expand-file-name cred-key)))
+ (file-regular-p
+ (setq cred-cert (expand-file-name cred-cert))))
+ (list "--x509keyfile" cred-key "--x509certfile" cred-cert)))))
+ (starttls-open-stream "SMTP" process-buffer host port)))))
+
+(defun smtpmail-try-auth-methods (process supported-extensions host port)
+ (let* ((mechs (cdr-safe (assoc 'auth supported-extensions)))
+ (mech (car (smtpmail-intersection smtpmail-auth-supported mechs)))
+ (cred (if (stringp smtpmail-auth-credentials)
+ (let* ((netrc (netrc-parse smtpmail-auth-credentials))
+ (port-name (format "%s" (or port "smtp")))
+ (hostentry (netrc-machine netrc host port-name
+ port-name)))
+ (when hostentry
+ (list host port
+ (netrc-get hostentry "login")
+ (netrc-get hostentry "password"))))
+ (smtpmail-find-credentials
+ smtpmail-auth-credentials host port)))
+ (passwd (when cred
+ (or (smtpmail-cred-passwd cred)
+ (read-passwd
+ (format "SMTP password for %s:%s: "
+ (smtpmail-cred-server cred)
+ (smtpmail-cred-port cred))))))
+ ret)
+ (when (and cred mech)
+ (cond
+ ((eq mech 'cram-md5)
+ (smtpmail-send-command process (upcase (format "AUTH %s" mech)))
+ (if (or (null (car (setq ret (smtpmail-read-response process))))
+ (not (integerp (car ret)))
+ (>= (car ret) 400))
+ (throw 'done nil))
+ (when (eq (car ret) 334)
+ (let* ((challenge (substring (cadr ret) 4))
+ (decoded (base64-decode-string challenge))
+ (hash (rfc2104-hash 'md5 64 16 passwd decoded))
+ (response (concat (smtpmail-cred-user cred) " " hash))
+ (encoded (base64-encode-string response)))
+ (smtpmail-send-command process (format "%s" encoded))
+ (if (or (null (car (setq ret (smtpmail-read-response process))))
+ (not (integerp (car ret)))
+ (>= (car ret) 400))
+ (throw 'done nil)))))
+ ((eq mech 'login)
+ (smtpmail-send-command process "AUTH LOGIN")
+ (if (or (null (car (setq ret (smtpmail-read-response process))))
+ (not (integerp (car ret)))
+ (>= (car ret) 400))
+ (throw 'done nil))
+ (smtpmail-send-command
+ process (base64-encode-string (smtpmail-cred-user cred)))
+ (if (or (null (car (setq ret (smtpmail-read-response process))))
+ (not (integerp (car ret)))
+ (>= (car ret) 400))
+ (throw 'done nil))
+ (smtpmail-send-command process (base64-encode-string passwd))
+ (if (or (null (car (setq ret (smtpmail-read-response process))))
+ (not (integerp (car ret)))
+ (>= (car ret) 400))
+ (throw 'done nil)))
+ ((eq mech 'plain)
+ ;; We used to send an empty initial request, and wait for an
+ ;; empty response, and then send the password, but this
+ ;; violate a SHOULD in RFC 2222 paragraph 5.1. Note that this
+ ;; is not sent if the server did not advertise AUTH PLAIN in
+ ;; the EHLO response. See RFC 2554 for more info.
+ (smtpmail-send-command process
+ (concat "AUTH PLAIN "
+ (base64-encode-string
+ (concat "\0"
+ (smtpmail-cred-user cred)
+ "\0"
+ passwd))))
+ (if (or (null (car (setq ret (smtpmail-read-response process))))
+ (not (integerp (car ret)))
+ (not (equal (car ret) 235)))
+ (throw 'done nil)))
+
+ (t
+ (error "Mechanism %s not implemented" mech)))
+ ;; Remember the password.
+ (when (and (not (stringp smtpmail-auth-credentials))
+ (null (smtpmail-cred-passwd cred)))
+ (setcar (cdr (cdr (cdr cred))) passwd)))))
+
+(defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
+ (let ((process nil)
+ (host (or smtpmail-smtp-server
+ (error "`smtpmail-smtp-server' not defined")))
+ (port smtpmail-smtp-service)
+ ;; smtpmail-mail-address should be set to the appropriate
+ ;; buffer-local value by the caller, but in case not:
+ (envelope-from (or smtpmail-mail-address
+ (and mail-specify-envelope-from
+ (mail-envelope-from))
+ user-mail-address))
+ response-code
+ greeting
+ process-buffer
+ (supported-extensions '()))
+ (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
+ (with-current-buffer process-buffer
+ (setq buffer-undo-list t)
+ (erase-buffer))
+
+ ;; open the connection to the server
+ (setq process (smtpmail-open-stream process-buffer host port))
+ (and (null process) (throw 'done nil))
+
+ ;; set the send-filter
+ (set-process-filter process 'smtpmail-process-filter)
+
+ (with-current-buffer process-buffer
+ (set-buffer-process-coding-system 'raw-text-unix 'raw-text-unix)
+ (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)
+ )
+
+ (let ((do-ehlo t)
+ (do-starttls t))
+ (while do-ehlo
+ ;; EHLO
+ (smtpmail-send-command process (format "EHLO %s" (smtpmail-fqdn)))
+
+ (if (or (null (car (setq response-code
+ (smtpmail-read-response process))))
+ (not (integerp (car response-code)))
+ (>= (car response-code) 400))
+ (progn
+ ;; 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)))
+ (dolist (line (cdr (cdr response-code)))
+ (let ((name (mapcar (lambda (s) (intern (downcase s)))
+ (split-string (substring line 4) "[ ]"))))
+ (and (eq (length name) 1)
+ (setq name (car name)))
+ (and name
+ (cond ((memq (if (consp name) (car name) name)
+ '(verb xvrb 8bitmime onex xone
+ expn size dsn etrn
+ enhancedstatuscodes
+ help xusr
+ auth=login auth starttls))
+ (setq supported-extensions
+ (cons name supported-extensions)))
+ (smtpmail-warn-about-unknown-extensions
+ (message "Unknown extension %s" name)))))))
+
+ (if (and do-starttls
+ (smtpmail-find-credentials smtpmail-starttls-credentials host port)
+ (member 'starttls supported-extensions)
+ (numberp (process-id process)))
+ (progn
+ (smtpmail-send-command process (format "STARTTLS"))
+ (if (or (null (car (setq response-code (smtpmail-read-response process))))
+ (not (integerp (car response-code)))
+ (>= (car response-code) 400))
+ (throw 'done nil))
+ (starttls-negotiate process)
+ (setq do-starttls nil))
+ (setq do-ehlo nil))))
+
+ (smtpmail-try-auth-methods process supported-extensions host port)
+
+ (if (or (member 'onex supported-extensions)
+ (member 'xone supported-extensions))
+ (progn
+ (smtpmail-send-command process (format "ONEX"))
+ (if (or (null (car (setq response-code (smtpmail-read-response process))))
+ (not (integerp (car response-code)))
+ (>= (car response-code) 400))
+ (throw 'done nil))))
+
+ (if (and smtpmail-debug-verb
+ (or (member 'verb supported-extensions)
+ (member 'xvrb supported-extensions)))
+ (progn
+ (smtpmail-send-command process (format "VERB"))
+ (if (or (null (car (setq response-code (smtpmail-read-response process))))
+ (not (integerp (car response-code)))
+ (>= (car response-code) 400))
+ (throw 'done nil))))
+
+ (if (member 'xusr supported-extensions)
+ (progn
+ (smtpmail-send-command process (format "XUSR"))
+ (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>
+ (let ((size-part
+ (if (or (member 'size supported-extensions)
+ (assoc 'size supported-extensions))
+ (format " SIZE=%d"
+ (with-current-buffer smtpmail-text-buffer
+ ;; size estimate:
+ (+ (- (point-max) (point-min))
+ ;; Add one byte for each change-of-line
+ ;; because of CR-LF representation:
+ (count-lines (point-min) (point-max)))))
+ ""))
+ (body-part
+ (if (member '8bitmime supported-extensions)
+ ;; FIXME:
+ ;; Code should be added here that transforms
+ ;; the contents of the message buffer into
+ ;; something the receiving SMTP can handle.
+ ;; For a receiver that supports 8BITMIME, this
+ ;; may mean converting BINARY to BASE64, or
+ ;; adding Content-Transfer-Encoding and the
+ ;; other MIME headers. The code should also
+ ;; return an indication of what encoding the
+ ;; message buffer is now, i.e. ASCII or
+ ;; 8BITMIME.
+ (if nil
+ " BODY=8BITMIME"
+ "")
+ "")))
+; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
+ (smtpmail-send-command process (format "MAIL FROM:<%s>%s%s"
+ envelope-from
+ size-part
+ body-part))
+
+ (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>" (smtpmail-maybe-append-domain (nth n recipient))))
+ (setq n (1+ n))
+
+ (setq response-code (smtpmail-read-response process))
+ (if (or (null (car response-code))
+ (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
+ (with-current-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)
+ (unless smtpmail-debug-info
+ (kill-buffer process-buffer)))))))
+
+
+(defun smtpmail-process-filter (process output)
+ (with-current-buffer (process-buffer process)
+ (goto-char (point-max))
+ (insert output)))
+
+(defun smtpmail-read-response (process)
+ (let ((case-fold-search nil)
+ (response-strings nil)
+ (response-continue t)
+ (return-value '(nil ()))
+ match-end)
+ (catch 'done
+ (while response-continue
+ (goto-char smtpmail-read-point)
+ (while (not (search-forward "\r\n" nil t))
+ (unless (memq (process-status process) '(open run))
+ (throw 'done nil))
+ (accept-process-output process)
+ (goto-char smtpmail-read-point))
+
+ (setq match-end (point))
+ (setq response-strings
+ (cons (buffer-substring smtpmail-read-point (- match-end 2))
+ response-strings))
+
+ (goto-char smtpmail-read-point)
+ (if (looking-at "[0-9]+ ")
+ (let ((begin (match-beginning 0))
+ (end (match-end 0)))
+ (if smtpmail-debug-info
+ (message "%s" (car response-strings)))
+
+ (setq smtpmail-read-point match-end)
+
+ ;; ignore lines that start with "0"
+ (if (looking-at "0[0-9]+ ")
+ nil
+ (setq response-continue nil)
+ (setq return-value
+ (cons (string-to-number
+ (buffer-substring begin end))
+ (nreverse response-strings)))))
+
+ (if (looking-at "[0-9]+-")
+ (progn (if smtpmail-debug-info
+ (message "%s" (car response-strings)))
+ (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 (nreverse response-strings)))))))
+ (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 (and (multibyte-string-p data)
+ smtpmail-code-conv-from)
+ (setq data (string-as-multibyte
+ (encode-coding-string data smtpmail-code-conv-from))))
+
+ (if smtpmail-debug-info
+ (insert data "\r\n"))
+
+ (setq smtpmail-read-point (point))
+ ;; Escape "." at start of a line
+ (if (eq (string-to-char data) ?.)
+ (process-send-string process "."))
+ (process-send-string process data)
+ (process-send-string process "\r\n")
+ )
+
+(defun smtpmail-send-data (process buffer)
+ (let ((data-continue t) sending-data)
+ (with-current-buffer buffer
+ (goto-char (point-min)))
+ (while data-continue
+ (with-current-buffer buffer
+ (setq sending-data (buffer-substring (point-at-bol) (point-at-eol)))
+ (end-of-line 2)
+ (setq data-continue (not (eobp))))
+ (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>."
+ (unwind-protect
+ (with-current-buffer smtpmail-address-buffer
+ (erase-buffer)
+ (let
+ ((case-fold-search t)
+ (simple-address-list "")
+ this-line
+ this-line-end
+ addr-regexp)
+ (insert-buffer-substring smtpmail-text-buffer header-start header-end)
+ (goto-char (point-min))
+ ;; RESENT-* fields should stop processing of regular fields.
+ (save-excursion
+ (setq addr-regexp
+ (if (re-search-forward "^Resent-\\(to\\|cc\\|bcc\\):"
+ header-end t)
+ "^Resent-\\(to\\|cc\\|bcc\\):"
+ "^\\(To:\\|Cc:\\|Bcc:\\)")))
+
+ (while (re-search-forward addr-regexp 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 " " simple-address-list "\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 [Resent-]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 "^\\(RESENT-\\)?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 ""))))))
+
+
+(provide 'smtpmail)
+
+;;; arch-tag: a76992df-6d71-43b7-9e72-4bacc6c05466
+;;; smtpmail.el ends here
projects / gnus / blobdiff