* lib-src/Makefile.in (update-game-score${EXEEXT}): Use a single rule.
[bpt/emacs.git] / lisp / mail / smtpmail.el
index 3a5e852..427d9d1 100644 (file)
@@ -1,7 +1,6 @@
 ;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail
 
-;; Copyright (C) 1995, 1996, 2001, 2002, 2003, 2004, 2005,
-;;   2006, 2007, 2008 Free Software Foundation, Inc.
+;; Copyright (C) 1995-1996, 2001-2011  Free Software Foundation, Inc.
 
 ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
 ;; Maintainer: Simon Josefsson <simon@josefsson.org>
@@ -46,8 +45,8 @@
 ;; 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.
+;; 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.
@@ -67,6 +66,7 @@
 ;;; Code:
 
 (require 'sendmail)
+(autoload 'starttls-any-program-available "starttls")
 (autoload 'starttls-open-stream "starttls")
 (autoload 'starttls-negotiate "starttls")
 (autoload 'mail-strip-quoted-names "mail-utils")
@@ -77,9 +77,7 @@
 (autoload 'netrc-machine "netrc")
 (autoload 'netrc-get "netrc")
 (autoload 'password-read "password-cache")
-
-(eval-and-compile
-  (autoload 'auth-source-user-or-password "auth-source"))
+(autoload 'auth-source-search "auth-source")
 
 ;;;
 (defgroup smtpmail nil
@@ -123,8 +121,7 @@ Don't bother to set this unless you have get an error like:
 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
-"
+       501 <someone>: recipient address must contain a domain."
   :type '(choice (const nil) string)
   :group 'smtpmail)
 
@@ -170,9 +167,9 @@ 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)
+                               (integer :tag "Port")
+                               (string  :tag "Username")
+                               (choice (const :tag "Query when needed" nil)
                                       (string  :tag "Password")))))
   :version "22.1"
   :group 'smtpmail)
@@ -219,7 +216,8 @@ This is relative to `smtpmail-queue-dir'."
 (defvar smtpmail-read-point)
 
 (defconst smtpmail-auth-supported '(cram-md5 plain login)
-  "List of supported SMTP AUTH mechanisms.")
+  "List of supported SMTP AUTH mechanisms.
+The list is in preference order.")
 
 (defvar smtpmail-mail-address nil
   "Value to use for envelope-from address for mail from ambient buffer.")
@@ -243,11 +241,10 @@ This is relative to `smtpmail-queue-dir'."
             (let ((sendmail-coding-system smtpmail-code-conv-from))
               (select-message-coding-system)))))
     (unwind-protect
-       (save-excursion
-         (set-buffer tembuf)
+       (with-current-buffer tembuf
          (erase-buffer)
-         ;; Use the same buffer-file-coding-system as in the mail
-         ;; buffer, otherwise any write-region invocations (e.g., in
+         ;; Use the same `buffer-file-coding-system' as in the mail
+         ;; buffer, otherwise any `write-region' invocations (e.g., in
          ;; mail-do-fcc below) will annoy with asking for a suitable
          ;; encoding.
          (set-buffer-file-coding-system smtpmail-code-conv-from nil t)
@@ -259,7 +256,7 @@ This is relative to `smtpmail-queue-dir'."
          ;; Change header-delimiter to be what sendmail expects.
          (mail-sendmail-undelimit-header)
          (setq delimline (point-marker))
-;;       (sendmail-synch-aliases)
+          ;; (sendmail-synch-aliases)
          (if mail-aliases
              (expand-mail-aliases (point-min) delimline))
          (goto-char (point-min))
@@ -270,7 +267,7 @@ This is relative to `smtpmail-queue-dir'."
          (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.
+           ;; 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)
@@ -357,7 +354,7 @@ This is relative to `smtpmail-queue-dir'."
            ;; Find and handle any FCC fields.
            (goto-char (point-min))
            (if (re-search-forward "^FCC:" delimline t)
-               ;; Force mail-do-fcc to use the encoding of the mail
+               ;; Force `mail-do-fcc' to use the encoding of the mail
                ;; buffer to encode outgoing messages on FCC files.
                (let ((coding-system-for-write smtpmail-code-conv-from))
                  (mail-do-fcc delimline)))
@@ -365,15 +362,13 @@ This is relative to `smtpmail-queue-dir'."
                (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))
+                (smtpmail-deduce-address-list tembuf (point-min) delimline))
          (kill-buffer smtpmail-address-buffer)
 
          (smtpmail-do-bcc delimline)
-         ; Send or queue
+          ;; Send or queue
          (if (not smtpmail-queue-mail)
              (if (not (null smtpmail-recipient-address-list))
                  (if (not (smtpmail-via-smtp
@@ -396,7 +391,14 @@ This is relative to `smtpmail-queue-dir'."
                (make-directory smtpmail-queue-dir t))
              (with-current-buffer buffer-data
                (erase-buffer)
-               (set-buffer-file-coding-system smtpmail-code-conv-from nil t)
+               (set-buffer-file-coding-system
+                ;; We will be reading the file with no-conversion in
+                ;; smtpmail-send-queued-mail below, so write it out
+                ;; with Unix EOLs.
+                (coding-system-change-eol-conversion
+                 (or smtpmail-code-conv-from 'undecided)
+                 'unix)
+                nil t)
                (insert-buffer-substring tembuf)
                (write-file file-data)
                (set-buffer buffer-elisp)
@@ -424,8 +426,8 @@ This is relative to `smtpmail-queue-dir'."
   "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...
+    ;; Get index, get first mail, send it, update index, get second
+    ;; mail, send it, etc...
     (let ((file-msg "")
           (qfile (expand-file-name smtpmail-queue-index-file
                                    smtpmail-queue-dir)))
@@ -453,7 +455,7 @@ This is relative to `smtpmail-queue-dir'."
        (delete-region (point-at-bol) (point-at-bol 2)))
       (write-region (point-min) (point-max) qfile))))
 
-;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
+;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
 
 (defun smtpmail-fqdn ()
   (if smtpmail-local-domain
@@ -505,13 +507,7 @@ This is relative to `smtpmail-queue-dir'."
 (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))))
+    (if (null (and cred (starttls-any-program-available)))
        ;; The normal case.
        (open-network-stream "SMTP" process-buffer host port)
       (let* ((cred-key (smtpmail-cred-key cred))
@@ -536,16 +532,20 @@ This is relative to `smtpmail-queue-dir'."
                 (list "--x509keyfile" cred-key "--x509certfile" cred-cert)))))
        (starttls-open-stream "SMTP" process-buffer host port)))))
 
-;; password-read autoloads password-cache.
+;; `password-read' autoloads password-cache.
 (declare-function password-cache-add "password-cache" (key password))
 
 (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)))
-        (auth-user (auth-source-user-or-password 
-                    "login" host (or port "smtp")))
-        (auth-pass (auth-source-user-or-password 
-                    "password" host (or port "smtp")))
+        (mech (car (smtpmail-intersection mechs smtpmail-auth-supported)))
+         (auth-info (auth-source-search :max 1
+                                        :host host
+                                        :port (or port "smtp")))
+         (auth-user (plist-get (nth 0 auth-info) :user))
+         (auth-pass (plist-get (nth 0 auth-info) :secret))
+         (auth-pass (if (functionp auth-pass)
+                        (funcall auth-pass)
+                      auth-pass))
         (cred (if (and auth-user auth-pass) ; try user-auth-* before netrc-*
                   (list host port auth-user auth-pass)
                 ;; else, if auth-source didn't return them...
@@ -558,8 +558,8 @@ This is relative to `smtpmail-queue-dir'."
                         (list host port
                               (netrc-get hostentry "login")
                               (netrc-get hostentry "password"))))
-                  ;; else, try smtpmail-find-credentials since
-                  ;; smtpmail-auth-credentials is not a string
+                  ;; else, try `smtpmail-find-credentials' since
+                  ;; `smtpmail-auth-credentials' is not a string
                   (smtpmail-find-credentials
                    smtpmail-auth-credentials host port))))
         (prompt (when cred (format "SMTP password for %s:%s: "
@@ -590,7 +590,7 @@ This is relative to `smtpmail-queue-dir'."
 
                 ;; In my case, the response string is 80 characters
                 ;; long.  Without the no-line-break option for
-                ;; base64-encode-sting, only the first 76 characters
+                ;; `base64-encode-string', only the first 76 characters
                 ;; are taken as a response to the server, and the
                 ;; authentication fails.
                 (encoded (base64-encode-string response t)))
@@ -645,7 +645,7 @@ This is relative to `smtpmail-queue-dir'."
        (host (or smtpmail-smtp-server
                  (error "`smtpmail-smtp-server' not defined")))
        (port smtpmail-smtp-service)
-        ;; smtpmail-mail-address should be set to the appropriate
+        ;; `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
@@ -682,61 +682,60 @@ This is relative to `smtpmail-queue-dir'."
            (if (or (null (car (setq greeting (smtpmail-read-response process))))
                    (not (integerp (car greeting)))
                    (>= (car greeting) 400))
-               (throw 'done nil)
-             )
+               (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
-                      (with-case-table ascii-case-table
-                        (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))))
+                ;; 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
+                           (with-case-table ascii-case-table
+                             (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)
 
@@ -796,7 +795,7 @@ This is relative to `smtpmail-queue-dir'."
                           " 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" (user-login-name) (smtpmail-fqdn)))
              (smtpmail-send-command process (format "MAIL FROM:<%s>%s%s"
                                                      envelope-from
                                                     size-part
@@ -805,8 +804,7 @@ This is relative to `smtpmail-queue-dir'."
              (if (or (null (car (setq response-code (smtpmail-read-response process))))
                      (not (integerp (car response-code)))
                      (>= (car response-code) 400))
-                 (throw 'done nil)
-               ))
+                 (throw 'done nil)))
 
            ;; RCPT TO:<recipient>
            (let ((n 0))
@@ -818,9 +816,7 @@ This is relative to `smtpmail-queue-dir'."
                (if (or (null (car response-code))
                        (not (integerp (car response-code)))
                        (>= (car response-code) 400))
-                   (throw 'done nil)
-                 )
-               ))
+                   (throw 'done nil))))
 
            ;; DATA
            (smtpmail-send-command process "DATA")
@@ -828,36 +824,33 @@ This is relative to `smtpmail-queue-dir'."
            (if (or (null (car (setq response-code (smtpmail-read-response process))))
                    (not (integerp (car response-code)))
                    (>= (car response-code) 400))
-               (throw 'done nil)
-             )
+               (throw 'done nil))
 
            ;; Mail contents
            (smtpmail-send-data process smtpmail-text-buffer)
 
-           ;;DATA end "."
+           ;; 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 ))
+               (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)
-;            )
+            ;; (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)))))))
@@ -945,8 +938,7 @@ This is relative to `smtpmail-queue-dir'."
   (if (eq (string-to-char data) ?.)
       (process-send-string process "."))
   (process-send-string process data)
-  (process-send-string process "\r\n")
-  )
+  (process-send-string process "\r\n"))
 
 (defun smtpmail-send-data (process buffer)
   (let ((data-continue t) sending-data)
@@ -964,12 +956,11 @@ This is relative to `smtpmail-queue-dir'."
   (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)
+       (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.
@@ -990,13 +981,12 @@ This is relative to `smtpmail-queue-dir'."
            (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))))
-           )
+                         (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
+         (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
@@ -1007,15 +997,8 @@ This is relative to `smtpmail-queue-dir'."
            (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))
-
-         )
-       )
-    )
-  )
-
+                                                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.
@@ -1032,8 +1015,6 @@ many 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