GNU bug report logs - #39230
[PATCH] Expand text/html regardless of it position in the MIME tree

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From: Jérémy Compostella <jeremy.compostella <at> gmail.com>
To: 39230 <at> debbugs.gnu.org
Subject: bug#39230: [PATCH] Expand text/html regardless of it position in the MIME tree
Date: Wed, 12 Feb 2020 11:18:07 -0700

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Hi,

I would really appreciate if I could receive a feedback on this patch.  I
can't send GPG HTML email because of this limitation and this is is also
blocking an issue reported of my org-msg module.

I have attached the patch here as I have fixed a typo in the commit
headline.

Let me know if I need to address this patch to another mailing list.

Regards,
Jeremy
.

On Tue, Jan 21, 2020 at 4:01 PM Jeremy Compostella <
jeremy.compostella <at> gmail.com> wrote:

> If the text/html part is not the unique part of the email,
> mml-generate-mime does not expand it to a related multipart. This
> break uses cases like PGP signing of an HTML email including images.
>
> For instance, if you compose an email with the <multipart sign=pgpmime>
> and a <part type="text/html" disposition=inline>, the second part is
> not expanded into a multipart related and the images are not included.
>
> Signed-off-by: Jeremy Compostella <jeremy.compostella <at> gmail.com>
> ---
>  lisp/gnus/mml.el | 19 ++++++++++++++-----
>  1 file changed, 14 insertions(+), 5 deletions(-)
>
> diff --git a/lisp/gnus/mml.el b/lisp/gnus/mml.el
> index cdd8f3d3a5..3d86c5bc40 100644
> --- a/lisp/gnus/mml.el
> +++ b/lisp/gnus/mml.el
> @@ -487,11 +487,8 @@ type detected."
>                  (= (length cont) 1)
>                  content-type)
>         (setcdr (assq 'type (cdr (car cont))) content-type))
> -      (when (and (consp (car cont))
> -                (= (length cont) 1)
> -                (fboundp 'libxml-parse-html-region)
> -                (equal (cdr (assq 'type (car cont))) "text/html"))
> -       (setq cont (mml-expand-html-into-multipart-related (car cont))))
> +      (when (fboundp 'libxml-parse-html-region)
> +       (setq cont (mapcar 'mml-expand-all-html-into-multipart-related
> cont)))
>        (prog1
>           (with-temp-buffer
>             (set-buffer-multibyte nil)
> @@ -510,6 +507,18 @@ type detected."
>             (buffer-string))
>         (setq message-options options)))))
>
> +(defun mml-expand-all-html-into-multipart-related (cont)
> +  (cond ((and (eq (car cont) 'part)
> +             (equal (cdr (assq 'type cont)) "text/html"))
> +        (mml-expand-html-into-multipart-related cont))
> +       ((eq (car cont) 'multipart)
> +        (let ((cur (cdr cont)))
> +          (while (consp cur)
> +            (setcar cur (mml-expand-all-html-into-multipart-related (car
> cur)))
> +            (setf cur (cdr cur))))
> +        cont)
> +       (t cont)))
> +
>  (defun mml-expand-html-into-multipart-related (cont)
>    (let ((new-parts nil)
>         (cid 1))
> --
> 2.24.1
>
>

-- 
« Si debugger, c'est supprimer des bugs, alors programmer ne peut être que
les ajouter » - Edsger Dijkstra

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[0001-Expand-text-html-regardless-of-its-position-in-the-M.patch (text/x-patch, attachment)]

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