Hello all,

So I've gotten pretty close in my implementation, but I've got one blocker:

The account selection and Oath2 token request are initiated using an intent. The result is then retrieved by implementing the #onActivityResult method of the initial activity. The problem I'm facing is the original activity exists in the user's application. Nesting activities isn't a solution, as I still don't have access to the top-level activity.

Implementing this purely as a cordova plugin is trivial, as I can just @Override the #onActivityResult of the CordovaPlugin class.

Do any Android experts have a recommendation on how I can implement this as a generic Android library in android-authz?

Alternatively if we implement this directly in the oauth2-codova plugin I have everything we need already complete.

Brian

On 2015-02-25 10:44 AM, Daniel Passos wrote:

Hey Brian,

You can. but not necessarily need do that.. You can create your own workflow.

Just implement your own:

OAuth2AuthroizationConfigurationProvider

AuthorizationConfiguration

AuthzModule.java

And let the AuthorizationManager know[1] your new Authz
AuthorizationManager.registerConfigurationProvider(YourNewAuthorizationConfiguration, new YourNewOAuth2AuthroizationConfigurationProvider)
[1] https://github.com/aerogear/aerogear-android-authz/blob/master/aerogear-android-authz/src/main/java/org/jboss/aerogear/android/authorization/AuthorizationManager.java#L37-L41

-- Passos
On Wed, Feb 25, 2015 at 3:30 PM, Brian Leathem <bleathem@gmail.com> wrote:
... and the devil is in the details.

It seems as though all the current AuzthzModules use an http based approach to requesting an Oauth2 token. I see this being done in OAuth2WebFragmentFetchAutorization#doAuthorization method, where an OAuthWebViewDialog is used to trigger the Oauth2 token request.

To use Google Play services to trigger an Oauth2 token request, we won't use an http approach, but rather we start an activity to select an account and request an Oauth2 token. Once the token is retrieved it can then be used with the standard http Oauth2 API.

(One caveat: the google play services token response doesn't provide a refresh token. I believe this to be a non-issue as the token request process is trivial when using google play services (no authentication step)).

I see to ways to implement this feature:

1) Generalize the OAuth2WebFragmentFetchAutorization into an interface, and have one implementation to handle http-based token requests, and second implementation to handle intent-based token requests.

2) Add a OAuth2AuthorizationConfiguration option to use intents instead of http, and trigger a different workflow within the OAuth2WebFragmentFetchAutorization#doAuthorization method if that config is set.

My preference is for 2) because it's a) simpler, and b) it is really only during the #doAuthorization method that we have a different approach.

Thoughts? I'll start with implementing approach (2) unless I hear otherwise.

Brian

On 2015-02-24 07:25 PM, Matthias Wessendorf wrote:
On Wednesday, February 25, 2015, Daniel Passos <daniel@passos.me> wrote:

No, we are not using Google Play services API for now for OAuth2 in Android land.

But feel free create a new AuthzModule[1] for it ;)

+1

[1] https://github.com/aerogear/aerogear-android-authz/blob/master/aerogear-android-authz/src/main/java/org/jboss/aerogear/android/authorization/AuthzModule.java

-- Passos

On Tue, Feb 24, 2015 at 4:01 PM, Sebastien Blanc <scm.blanc@gmail.com> wrote:

Cool stuff Brian !
The AeroGear OAuth2 Cordova plugin relies on the Native AeroGear OAuth2 Libraries, so maybe Summers and/or Daniel could tell more about it.

Sebi

On Tue, Feb 24, 2015 at 7:46 PM, Brian Leathem <bleathem@gmail.com> wrote:

Hey gear-heads,

I recently wrote a Cordova plugin that retrieves a Oauth2 token on
Android using Google Play Services. The advantage of this approach is
it leverages the single-sign-on capabilities of android, and the app can
retrieve the Oauth2 token without requiring Authentication from the
user. I blogged about it here:

http://www.bleathem.ca/blog/2015/02/cordova-oauth-google-services.html

Using a promise-based API it's fairly trivial to fallback to a
traditional Web authentication/authorisation for the Oauth2 token when
the google-play-services approach isn't supported.

I'm aware the aerogear team has a Oauth2 cordova plugin [1], but it's
not clear to me if the google-play-services integration is supported.
If the Aerogeam would find it useful, I'd be more than happy to provide
a PR to the aerogear cordova plugin providing such integration.

Thoughts?
Brian

[1]
http://staging-aerogearsite.rhcloud.com/docs/specs/aerogear-cordova/OAuth2.html
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