This bug was fixed in the package python-wadllib -
1.3.2-3ubuntu0.16.04.1
---------------
python-wadllib (1.3.2-3ubuntu0.16.04.1) xenial; urgency=medium
* Fix MIME encoding of binary parts (LP: #1729754).
-- Colin Watson <cjwat...@ubuntu.com> Fri, 20 Jul 2018 18:09:05 +0100
** Changed in: python-wadllib (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1729754
Title:
Python3 version of launchpadlib doesn't properly upload binary
attachments to Launchpad
Status in wadllib:
Fix Released
Status in python-wadllib package in Ubuntu:
Fix Released
Status in python-wadllib source package in Xenial:
Fix Released
Status in python-wadllib source package in Bionic:
Fix Committed
Bug description:
Tested on 16.04 and 17.10
python-launchpadlib (1.10.5-1 on 17.10)
python3-launchpadlib (1.10.5-1 on 17.10)
While working on porting a utility using launchpadlib from Python2 to
Python3, I noticed the binary attachments were becoming unreadable.
I've tried uploading .jpg files, .tgz files, .tar.xz files, they all
fail to open properly.
P.S.: When a fix is available, can it be ported to Xenial? We need
this for our tools running on devices using Xenial.
[Test Case]
I wrote a little proof of concept that uploads a given binary attachment to a
launchpad issue (see attachment). To use it on staging launchpad:
APPORT_STAGING=1 ./poc.py <bug_number> </path/to/file.bin>
When using the exact same script with python2 (basically, replacing
`python3` with `python` in the shebang line), the binary file is
properly attached. That's why I think it's a bug with
python3-launchpadlib.
[Regression Potential]
The only sensible way to fix this bug was to rewrite how wadllib does
MIME-encoding of its form uploads, so it'll be important to test both text and
binary uploads.
Launchpad only defines a few methods that use multipart/form-data, so
the regression potential is confined to those: bug.addAttachment,
distro_arch_series.setChroot, and project_release.add_file.
To manage notifications about this bug go to:
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