Microsoft Azure account for Akonadi EWS

[Krzysztof Nowicki]

Hi,

My company has recently tighten-up security on our Office 365 configuration and 
all external access now requires OAUTH2 authentication. In order to make 
Akonadi EWS work I've started to implement this authentication for the 
resource.

With Qt 5.8 all the building blocks are there - there is QtNetworkAuth and 
QtWebEngine, which together allow doing the OAUTH2 authentication with just 
several lines of code.

I have however hit a problem - in order to authenticate against the Azure AD 
the client needs to identify itself with a client ID. In order to obtain one a 
global, multi-tenant application must be registered with the Azure cloud, 
which in turn requires a business account - a personal one is not enough.

For the moment I have borrowed a client ID from an existing Android app, but 
obviously we wouldn't want to ship Akonadi EWS with it.

Evolution has also recently implemented OAUTH2 authentication in their EWS 
plugin, but they went for a different approach - instead of registering an app 
themselves they are shifting that towards the user and letting him provide all 
the necessary data in the account configuration. Personally I think such 
approach is bad for usability.

I could try to open a trial account for now and register the app, but I'm not 
sure if the registration will survive once the trial period is over.

I think a better approach would be for KDE as an organization to register an 
app for Akonadi EWS, so that the ownership of it is clear. Does KDE have such 
an account? Would there be a possibility to create one?

Regards
Chris