(emacs) Parsing problems replying to encrypted html

[Matthew Lear]

> On Tue, Mar 08 2016, Tomi Ollila wrote:
>
>> [ text/plain ]
>> On Tue, Mar 08 2016, David Bremner wrote:
>>
>>> [ text/plain ]
>>> Matthew Lear <matt at bubblegen.co.uk> writes:
>>>
>>>
>>> Thanks for the test case. I can duplicate a (the?) bug as
>>> follows. Replying to that message from notmuch-show mode works, but
>>> replying from notmuch-search mode yields
>>>
>>>> !!! Bodypart insert error: Wrong type argument: number-or-marker-p,
>>>> nil !!!
>>>> [ application/pgp-encrypted ]
>>>> Version: 1
>>>> [ encrypted.asc: application/octet-stream (as text/plain) ]
>>>> !!! Bodypart insert error: Internal error: No :content from ("show"
>>>> "--format=sexp" "--include-html" "--part=3"
>>>> "id:56DDE706.6060702 at bubblegen.co.uk") !!!
>>>
>>> Followed by the ciphertext.
>>>> -----BEGIN PGP MESSAGE-----
>>>
>>> If anyone wants to play with this, you just need to import the notmuch
>>> test key into your keyring, something like
>>>
>>> gpg --import path/to/notmuch-source/test/gnupg-secret-key.asc
>>>
>>> What's odd is that the notmuch command in the error message works on
>>> the
>>> command line.
>>
>> I got these to my log:
>>
>> when replying from search:
>>
>> 2016-03-08 (Tue) 14:16:01: reply --format=sexp --format-version=1
>> --reply-to=sender thread:0000000000004a6f
>> 2016-03-08 (Tue) 14:16:01: show --format=raw --part=2
>> id:56DDE706.6060702 at bubblegen.co.uk
>> 2016-03-08 (Tue) 14:16:01: show --format=sexp --include-html --part=3
>> id:56DDE706.6060702 at bubblegen.co.uk
>
> The above line returns (same as in latest !!! bodypart insert error !!!)
>
> (:id 3 :content-type "application/octet-stream" :filename "encrypted.asc"
> :content-length 1875)
>
> -- there is no content to be included from that line :/ (and wat is this
>    "encrypted.asc" anyway ?)

encrypted.asc is what Enigmail uses when sending using PGP/MIME. I think
it wraps up the message body in this file (armor encrypted) and marks it
with disposition inline. Enigmail also sends PGP/MIME version
identification information in another MIME part
(application/pgp-encrypted) - so you have two MIME parts per PGP/MIME
encrypted message.

You can view all headers in the test message if you're in notmuch-show by
using V. You'll see something like:

Content-Type: multipart/encrypted;
 protocol="application/pgp-encrypted";
 boundary="xxx"

This is an OpenPGP/MIME encrypted message (RFC 4880 and 3156)
--xxx
Content-Type: application/pgp-encrypted
Content-Description: PGP/MIME version identification

Version: 1

--xxx
Content-Type: application/octet-stream; name="encrypted.asc"
Content-Description: OpenPGP encrypted message
Content-Disposition: inline; filename="encrypted.asc"

-----BEGIN PGP MESSAGE-----
Version: GnuPG v2
...
-----END PGP MESSAGE-----

--xxx--