Comment 17 for bug 1729754

I followed the same procedure as in the description, using the same poc.py script.

Prereq:

- a xenial LXC container with -proposed packages enabled
- a bionic LXC container with -proposed packages enabled

Steps:

1. Connect to the Xenial container and install the following packages:

python-launchpadlib
python3-launchpadlib
python-wadllib/xenial-proposed
python3-wadllib/xenial-proposed

2. Make sure the poc.py is configured to use Python3, then:

  a. attach a binary file:
    $ APPORT_STAGING=1 ./poc.py <bug_number> <binary_file.tar.xz>
  b. attach a text file:
    $ APPORT_STAGING=1 ./poc.py <bug_number> <text_file.json>

→ In both cases, the file is attached properly. It can then be downloaded and opened without problem.

3. Repeat step 2 using the poc.py in Python2 configuration

4. Repeat steps 1~3 using a Bionic container

→ In every cases, it worked out well for me. I attached a .tar.xz file, a .jpg file (the one attached to this issue) as well as a .json file, and in every cases I could download and open the file properly.