D14924: Prevent paste in screen locker (alternative approach)

[David Edmundson]

davidedmundson created this revision.
davidedmundson added a reviewer: Plasma.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
davidedmundson requested review of this revision.

REVISION SUMMARY
  KScreenlocker tries to clear the clipboard on load. However, klipper
  also (by default) automatically keeps the last relevant item in the
  clipboard. Whilst both parts work correctly, Plasma as a whole does not.
  
  This became a problem when we added the reveal password button as it is
  a data leak.
  
  Instead of clearing the clipboard this patch replaces it with a real
  entry, but with a dummy mime value that is of no value to anyone,
  especially a textfield.
  
  By using x-kde-passwordManageHint we can prevent klipper from storing
  this entry so it's completely transparent with a working clipboard after
  the session is complete.
  
  My preferred solution of the two
  
  BUG: 388049

TEST PLAN
  Reproduced issue
  Made this patch
  Tried pasting in session
  Nothing happned
  Logged in
  Could paste

REPOSITORY
  R133 KScreenLocker

REVISION DETAIL
  https://phabricator.kde.org/D14924

AFFECTED FILES
  greeter/greeterapp.cpp

To: davidedmundson, #plasma
Cc: plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/plasma-devel/attachments/20180818/d806b78c/attachment-0001.html>