Bug#1021614: notmuch: RFC2047-encoded special characters in display-name show up unquoted

Bug#1021614: notmuch: RFC2047-encoded special characters in display-name show up unquoted

[Jakub Wilk]

[-- Attachment #1: Type: text/plain, Size: 962 bytes --]

Package: notmuch
Version: 0.37-1

The attached message has a bunch of RFC-2047-encoded special characters 
in the display-name part of the From field:

    $ grep ^From: weird-from.eml
    From: =?UTF-8?Q?=3Cfoo=40example.org=3E=2C?= <bar@example.org>

When you show this message in notmuch, the special characters show up 
unquoted (and unencoded), so that it looks like there are two addresses 
in the From field:

    $ ./notmuch-show-from < weird-from.eml
    From: <foo@example.org>, <bar@example.org>

I initially thought this is a GMime bug, but it seems GMime gets this 
right:

    $ ./gmime-show-from < weird-from.eml
    From: "<foo@example.org>," <bar@example.org>


-- System Information:
Architecture: i386

Versions of packages notmuch depends on:
ii  libnotmuch5     0.37-1
ii  libc6           2.35-3
ii  libglib2.0-0    2.74.0-2
ii  libgmime-3.0-0  3.2.13+dfsg-2
ii  libtalloc2      2.3.4-1
ii  zlib1g          1:1.2.11.dfsg-4.1

-- 
Jakub Wilk

[-- Attachment #2: weird-from.eml --]
[-- Type: message/rfc822, Size: 64 bytes --]

From: "<foo@example.org>," <bar@example.org>



[-- Attachment #3: Type: text/plain, Size: 0 bytes --]

Bug#1021614: notmuch: RFC2047-encoded special characters in display-name show up unquoted

[Jakub Wilk]

[-- Attachment #1: Type: text/plain, Size: 88 bytes --]

Attaching the reprocucer scripts, which somehow got lost in transport!?

-- 
Jakub Wilk

[-- Attachment #2: notmuch-show-from --]
[-- Type: text/plain, Size: 255 bytes --]

#!/bin/bash
set -e -u
tmpdir="$(mktemp -d)"
export NOTMUCH_DATABASE="$tmpdir"
notmuch --config '' new > /dev/null
mkdir -p "$NOTMUCH_DATABASE"/{cur,new,tmp}
notmuch --config '' insert > /dev/null
notmuch --config '' show '*' | grep ^From:
rm -rf "tmpdir"

[-- Attachment #3: gmime-show-from --]
[-- Type: text/plain, Size: 365 bytes --]

#!/usr/bin/python3

import sys

import gi
gi.require_version('GMime', '3.0')
from gi.repository import GMime
GMime.init()

stream = GMime.StreamPipe.new(sys.stdin.fileno())
parser = GMime.Parser.new_with_stream(stream)
msg = parser.construct_message()
addrs = msg.get_from()
addrs = addrs.to_string(GMime.FormatOptions(), True)
print('From:', addrs)

[-- Attachment #4: Type: text/plain, Size: 0 bytes --]