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device: Add new API and fallback to delete prints from device

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Some devices require storing the print on the device, to support this,
try deleting prints from the device before deleting them from local
storage.

To handle these devices, add a new API that requires the device to be
claimed rather than allowing deletion without claiming the device first.
Also add appropriate fallbacks so that the old API will continue to
work, but warn about its use.
This commit is contained in:
Benjamin Berg
2019-08-13 13:03:13 +02:00
parent 94f54c0638
commit b2ff316e20
2 changed files with 116 additions and 8 deletions
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25
src/device.xml
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@ -250,7 +250,7 @@
<doc:definition>
No further prints can be enrolled on this device, <doc:ref type="method" to="Device.EnrollStop">Device.EnrollStop</doc:ref> should now be called.
<doc:ref type="method" to="DeleteEnrolledFingers">Delete other prints</doc:ref> from the device first to continue
<doc:ref type="method" to="DeleteEnrolledFingers2">Delete other prints</doc:ref> from the device first to continue
(e.g. from other users). Note that old prints or prints from other operating systems may be deleted automatically
to resolve this error without any notification.
</doc:definition>
@ -311,6 +311,29 @@
<doc:para>
Delete all the enrolled fingerprints for the chosen user.
</doc:para>
<doc:para>
This call only exists for compatibility reasons, you should instead claim the device using
<doc:ref type="method" to="Device.Claim">Device.Claim</doc:ref> and then call
<doc:ref type="method" to="DeleteEnrolledFingers2">DeleteEnrolledFingers2</doc:ref>.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
</doc:errors>
</doc:doc>
</method>
<!-- ************************************************************ -->
<method name="DeleteEnrolledFingers2">
<annotation name="org.freedesktop.DBus.GLib.Async" value="" />
<doc:doc>
<doc:description>
<doc:para>
Delete all the enrolled fingerprints for the user currently claiming the device with <doc:ref type="method" to="Device.Claim">Device.Claim</doc:ref>.
</doc:para>
</doc:description>
<doc:errors>