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https://issues.apache.org/jira/browse/CB-1702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13483116#comment-13483116
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Jesse MacFadyen commented on CB-1702:
-------------------------------------
We have to be careful because the packageSpecificToken may be affected by
hardware changes, including docking/undocking, adding removing usb devices, ...
Generating our own id and storing it in a persistent location is probably 'good
enough' as there is no need to identify an app/device beyond an un-install.
The uuid should however survive an application update.
My advice is to move the uuid from localStorage which can be wiped simply by
calling localStorage.clear() to a known file on the filesystem.
ie.
on load, synchronously check if the file 'appDeviceIdentifier.txt' exists
if so, read it's string uuid value and use it,
otherwise, generate a uuid, and write it to the file 'appDeviceIdentifier.txt'
> device.uuid should use HardwareIdentification.GetPackageSpecificToken, not
> utils.createUUID
> -------------------------------------------------------------------------------------------
>
> Key: CB-1702
> URL: https://issues.apache.org/jira/browse/CB-1702
> Project: Apache Cordova
> Issue Type: Bug
> Components: Windows 8
> Reporter: Matt Baxter-Reynolds
> Assignee: Jesse MacFadyen
>
> The current implementation creates a device ID and puts it in localStorage:
> // deviceId aka uuid
> var deviceId = localStorage.deviceId;
> if(!deviceId) {
> deviceId = utils.createUUID();
> console.log(deviceId);
> localStorage.deviceId = deviceId;
> }
> This should more properly use WinRT's HardwareIdentification class, e.g.
> private string GetHardwareId()
> {
> var token = HardwareIdentification.GetPackageSpecificToken(null);
> var hardwareId = token.Id;
> var dataReader = Windows.Storage.Streams.DataReader.FromBuffer(hardwareId);
> byte[] bytes = new byte[hardwareId.Length];
> dataReader.ReadBytes(bytes);
> return BitConverter.ToString(bytes);
> }
> (I appreciate that's C# - I've cribbed it from another project, but this
> should work in WinJS.)
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