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lisp/gnus/mm-decode.el (mm-dissect-buffer): Guess content-type if the first token is missing in the Content-Type header

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lisp/gnus/nndoc.el (nndoc-dissect-mime-parts-sub): Ditto
This commit is contained in:
Katsumi Yamaoka 2013-10-22 10:22:59 +00:00
parent d40a46d75b
commit 84efb042f3
3 changed files with 90 additions and 10 deletions
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7
lisp/gnus/ChangeLog
View file

@ -1,3 +1,10 @@
2013-10-22 Katsumi Yamaoka <yamaoka@jpl.org>
* mm-decode.el (mm-dissect-buffer): Guess content-type if the first
token is missing in the Content-Type header.
* nndoc.el (nndoc-dissect-mime-parts-sub): Ditto.
2013-09-18 Glenn Morris <rgm@gnu.org>
* gnus-util.el (image-size): Declare.

39
lisp/gnus/mm-decode.el
View file

@ -672,12 +672,39 @@ MIME-Version header before proceeding."
description)))))
(if (or (not ctl)
(not (string-match "/" (car ctl))))
(mm-dissect-singlepart
(list mm-dissect-default-type)
(and cte (intern (downcase (mail-header-strip cte))))
no-strict-mime
(and cd (mail-header-parse-content-disposition cd))
description)
(let ((cdl (and cd (mail-header-parse-content-disposition cd))))
(mm-dissect-singlepart
;; Guess Content-Type from the file name extention.
;; Some mailer sends a part without type like this:
;; Content-Type: ; name="IMG_3156.JPG"
;; Content-Disposition: attachment; filename="IMG_3156.JPG"
(list (or
(let ((tem
(or (mail-content-type-get cdl 'filename)
(and ct
(with-temp-buffer
(insert ct)
(goto-char (point-min))
(and (re-search-forward "\
;[\t\n ]*name=\\([\"']\\|\\([^\t\n\r ]+\\)\\)" nil t)
(or (match-string 2)
(progn
(goto-char (match-beginning 1))
(condition-case nil
(progn
(forward-sexp 1)
(buffer-substring
(1+ (match-beginning 1))
(1- (point))))
(error nil))))))))))
(and tem
(setq tem (file-name-extension tem))
(require 'mailcap)
(cdr (assoc (concat "." (downcase tem))
mailcap-mime-extensions))))
mm-dissect-default-type))
(and cte (intern (downcase (mail-header-strip cte))))
no-strict-mime cdl description))
(setq type (split-string (car ctl) "/"))
(setq subtype (cadr type)
type (car type))

54
lisp/gnus/nndoc.el
View file

@ -968,15 +968,61 @@ PARENT is the message-ID of the parent summary line, or nil for none."
(goto-char head-begin)
(setq content-type (message-fetch-field "Content-Type"))
(when content-type
(when (string-match
"^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)" content-type)
(with-temp-buffer
(insert content-type)
(goto-char (point-min))
(when (re-search-forward ";[\t\n ]*name=\\([\"']\\|\\([^\t\n\r ]+\\)\\)"
nil t)
(setq subject (or (match-string 2)
(progn
(goto-char (match-beginning 1))
(condition-case nil
(progn
(forward-sexp 1)
(buffer-substring
(1+ (match-beginning 1)) (1- (point))))
(error nil)))))))
(when (or (string-match "^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)"
content-type)
;; Guess Content-Type from the file name extention.
;; Some mailer sends a part without type like this:
;; Content-Type: ; name="IMG_3156.JPG"
;; Content-Disposition: attachment; filename="IMG_3156.JPG"
(let ((tem (message-fetch-field "Content-Disposition"))
(case-fold-search t)
len)
(when (and
(setq tem
(or (and tem
(mail-content-type-get
(mail-header-parse-content-disposition
tem)
'filename))
subject))
(setq tem (file-name-extension tem))
(require 'mailcap)
(setq content-type
(cdr (assoc (concat "." (downcase tem))
mailcap-mime-extensions)))
(string-match "^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)"
content-type))
(save-match-data
(goto-char (point-min))
(when (re-search-forward "^Content-Type:\\([^;]*\\);"
nil t)
(setq len (- (match-end 1) (match-beginning 1)
(length content-type))
head-end (- head-end len)
body-begin (- body-begin len)
body-end (- body-end len))
(replace-match (concat "Content-Type: " content-type
";"))))
t)))
(setq type (downcase (match-string 1 content-type))
subtype (downcase (match-string 2 content-type))
message-rfc822 (and (string= type "message")
(string= subtype "rfc822"))
multipart-any (string= type "multipart")))
(when (string-match ";[ \t\n]*name=\\([^ \t\n;]+\\)" content-type)
(setq subject (match-string 1 content-type)))
(when (string-match "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)" content-type)
(setq boundary-regexp (concat "^--"
(regexp-quote