GNU bug report logs - #65872
[PATCH] Fix interactive display of MIME parts

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Davide Masserut <dm <at> mssdvd.com>
To: bug-gnu-emacs <at> gnu.org
Subject: [PATCH] Fix interactive display of MIME parts
Date: Mon, 11 Sep 2023 19:24:14 +0200

[Message part 1 (text/plain, inline)]

Tags: patch

This patch fixes a bug that did not allow to view attachments after
choosing to display them within Emacs.

The issue is in mm-interactively-view-part, which is used by
gnus-article-interactively-view-part and
notmuch-show-interactively-view-part.

mailcap-mime-info may return a list of functions or strings containing
external commands.  This list is passed to completing-read, which always
returns a string.

Before this change, when the method is a string, mm-display-external
would have attempted to execute it through a shell even when the method
refers to an Elisp function.


I discovered this bug while using notmuch with
notmuch-show-part-button-default-action set to
#'notmuch-show-interactively-view-part and having tried to open a pdf
with doc-view-mode.  This bug should also be reproducible using Gnus
but I don't know how to do it.


In GNU Emacs 30.0.50 (build 24, x86_64-pc-linux-gnu, GTK+ Version
 3.24.38, cairo version 1.17.8) of 2023-09-11 built on T480s
Repository revision: b3ef1d67919261c3af3e12c14f3d66c4d156cc19
Repository branch: master
System Description: Arch Linux

Configured using:
 'configure -C --prefix /home/davide/.local --with-pgtk
 --with-native-compilation --enable-link-time-optimization
 --enable-locallisppath=/usr/share/emacs/site-lisp/
 'CFLAGS=-march=native -O2''

[0001-Fix-interactive-display-of-MIME-parts.patch (text/patch, attachment)]

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