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(rmail-retry-failure): Special handling for mime.

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(mail-mime-unsent-header): New variable.
This commit is contained in:
Richard M. Stallman 1997-03-20 04:55:20 +00:00
parent ca57718c8e
commit 55a42e8cdf
1 changed files with 30 additions and 14 deletions
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44
lisp/mail/rmail.el
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@ -2621,11 +2621,16 @@ typically for purposes of moderating a list."
"^|? *---+ +Message text follows: +---+ *|?$")
"A regexp that matches the separator before the text of a failed message.")
(defvar mail-mime-unsent-header "^Content-Type: message/rfc822 *$"
"A regexp that matches the header of a MIME body part with a failed message.")
(defun rmail-retry-failure ()
"Edit a mail message which is based on the contents of the current message.
For a message rejected by the mail system, extract the interesting headers and
the body of the original message.
The variable `mail-unsent-separator' should match the string that
If the failed message is a MIME multipart message, it is searched for a
body part with a header which matches the variable `mail-mime-unsent-header'.
Otherwise, the variable `mail-unsent-separator' should match the string that
delimits the returned original message.
The variable `rmail-retry-ignored-headers' is a regular expression
specifying headers which should not be copied into the new message."
@ -2637,23 +2642,34 @@ specifying headers which should not be copied into the new message."
(save-excursion
;; Narrow down to just the quoted original message
(rmail-beginning-of-message)
(let ((case-fold-search t))
(if (search-forward "This is a MIME-encapsulated message\n\n--" nil t)
(let* ((case-fold-search t)
(top (point))
(content-type
(save-restriction
;; Fetch any content-type header in current message
(search-forward "\n\n") (narrow-to-region top (point))
(mail-fetch-field "Content-Type") )) )
;; Handle MIME multipart bounce messages
(if (and content-type
(string-match
";[\n\t ]*boundary=\"?\\([-0-9a-z'()+_,./:=?]+\\)\"?"
content-type))
(let ((codestring
(buffer-substring (progn (beginning-of-line) (point))
(progn (end-of-line) (point)))))
(or (re-search-forward mail-unsent-separator nil t)
(concat "\n--"
(substring content-type (match-beginning 1)
(match-end 1)))))
(or (re-search-forward mail-mime-unsent-header nil t)
(error "Cannot find beginning of header in failed message"))
(or (and (search-forward codestring nil t)
(search-forward "\n\n" nil t))
(or (search-forward "\n\n" nil t)
(error "Cannot find end of Mime data in failed message"))
(setq bounce-start (point))
(save-excursion
(goto-char (point-max))
(search-backward codestring)
(setq bounce-end (point)))
(or (search-forward "\n\n" nil t)
(error "Cannot find end of header in failed message")))
(or (search-forward codestring nil t)
(error "Cannot find end of Mime data in failed message"))
(setq bounce-end (match-beginning 0))
; (or (search-forward "\n\n" nil t)
; (error "Cannot find end of header in failed message"))
)
;; non-MIME bounce
(or (re-search-forward mail-unsent-separator nil t)
(error "Cannot parse this as a failure message"))
(skip-chars-forward "\n")