Dropping a key into the list of keys fails

[Bruno Nova]

[Impact]

Dragging a key into Software & Updates' authentication tab does nothing.

[Test Case]

1. Download a PGP key for a Debian repository (for example, the VideoLAN
   team's key: download.videolan.org/pub/debian/videolan-apt.asc)
2. Open "Software & Updates" from the Dash, then select the Authentication
   tab.
3. Open the PGP key file you downloaded with a text editor.
4. Select all of the text (Ctrl+A) and drag it into the list in the
   Authentication tab of Software & Updates.

   If the bug is fixed: admin authentication is requested. Authenticate,
   and then the key should be listed.
   If not: nothing happens, or an error is displayed.

[Regression Potential]

This feature isn't working, so I suppose there is not regression potential.

[Original Report]

When I drag a key text/file and drop it into the list of keys in the "Authentication" list, it fails silently (sometimes an apport bug report appears), throwing an exception:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 759, in on_auth_drag_data_received
    keydata = selection.data.strip()
AttributeError: 'SelectionData' object has no attribute 'data'

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: software-properties-gtk 0.92.37.1
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Oct 20 14:01:10 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-10-13 (6 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
SourcePackage: software-properties
UpgradeStatus: No upgrade log present (probably fresh install)

[Bruno Nova (brunonova)]

'SelectionData' has indeed no 'data' attribute. But it has a 'get_data()' method.
So, "selection.data.strip()" should be renamed to "selection.get_data().strip()" in softwareproperties/gtk/SoftwarePropertiesGtk.py (there are 2 occurrences).
Don't know if the bug exists in the KDE version.

But that doesn't fix everything. It will then throw these errors:
gpg: no writable keyring found: eof
gpg: error reading `/tmp/tmpcszfsj3q': general error
gpg: import from `/tmp/tmpcszfsj3q' failed: general error

[Bruno Nova (brunonova)]

Oh, before that there's another error:

Traceback (most recent call last):
  File "/home/bruno/src/software-properties/software-properties/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 760, in on_auth_drag_data_received
    if not self.add_key_from_data(keydata):
  File "/home/bruno/src/software-properties/software-properties/softwareproperties/SoftwareProperties.py", line 815, in add_key_from_data
    tmp.write(keydata.encode())
AttributeError: 'bytes' object has no attribute 'encode'

Just replace:
    tmp.write(keydata.encode())
with:
    tmp.write(keydata)
because keydata is already "bytes" at that point.

[Bruno Nova (brunonova)]

Ok, I think I got it. I'm going to link a branch that solves this soon.

[Brian Murray (brian-murray)]

Hello Bruno, or anyone else affected,

Accepted software-properties into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/software-properties/0.92.37.4 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Bruno Nova (brunonova)]

I updated software-properties' installed binary packages to the version in -proposed, and now dragging a key into the list of keys work.
This fixes this bug!

[Bruno Nova (brunonova)]

However, this update doesn't fix the other bug (#1381050) unfortunately, so this shouldn't be uploaded to trusty-updates!

[Mathew Hodson (mhodson)]

Hello Bruno, or anyone else affected,

Accepted software-properties into trusty-proposed. The package is available at https://launchpad.net/ubuntu/+source/software-properties/0.92.37.5 and in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Bruno Nova (brunonova)]

I updated the software-properties packages to 0.92.37.5 from trusty-proposed.

The bug is fixed!
I opened my own PGP key (I already have the VLC's key) in gedit and dragged everything into the authentication list. I was asked for polkit authorization and then the key was successfully added.

[Launchpad Janitor (janitor)]

This bug was fixed in the package software-properties - 0.92.37.5

---------------
software-properties (0.92.37.5) trusty-proposed; urgency=medium

  * cloudarchive: Enable support for the Liberty Ubuntu Cloud Archive on
    14.04 (LP: #1472586).
  * Revert SRU changes for "fix importing keys from path with special chars"
    due to verification-failed in trusty-proposed.

 -- Corey Bryant <email address hidden> Wed, 02 Sep 2015 12:31:11 -0400