[Documentation-packages] [Bug 2089814] Re: Privacy & Security does not show screenshot permissions.

[Juan]

** Package changed: ubuntu-docs (Ubuntu) => gnome-shell (Ubuntu)

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https://bugs.launchpad.net/bugs/2089814

Title:
  Privacy & Security does not show screenshot permissions.

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  When an application requests permission to do an screenshot, a dialog
  opens that offers the user the possibility of allowing or denying
  applications the permission, and says the choice will appear under
  Privacy settings. However this is not the case.

  If the permission is denied the first time, this breaks the
  application, since it can never be granted again.

  If the permission is granted, this creates a security risk, since now
  all applications can access the screen without an easy way to change
  the user choice.

  Steps to reproduce:
  - Install an application that request permission to screenshots (e.g. 
flameshot), and execute it.

  ![The only way I have found to actually modify the choice is to access the 
dbus interface though Python 
code:](https://community.upwork.com/t5/Freelancers/Constantly-asking-for-permission-to-share-screenshot-on-Gnome/m-p/1222388#M731300)
  ```
  import dbus
  bus = dbus.SessionBus()
  perm = bus.get_object('org.freedesktop.impl.portal.PermissionStore', 
'/org/freedesktop/impl/portal/PermissionStore')
  perm_iface = dbus.Interface(perm, 
dbus_interface='org.freedesktop.impl.portal.PermissionStore')

  perm_iface.Lookup("screenshot", "screenshot")
  perm_iface.Set("screenshot", dbus.Boolean(True), "screenshot", {"": ["yes"]}, 
dbus.Byte(0x00))
  perm_iface.Lookup("screenshot", "screenshot")
  ```

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