CODEWITHSUNDEEP
c#androidxamarin.formsoauth-2.0
Hursey
Hursey

Reputation: 551

Xamarin forms Android OAuth2 redirect no working

So, I've been working on this a couple days and I'm missing something. I'm trying to create a Xamarin forms app that connects to a cloud accounting package using OAuth2 authentication. I've been working through the examples from here. But I just can't get the redirect working. Most likely something simple, but I'm not seeing or understanding

I'm created my authenticator as per the example, setting the redirect url to https://com.myproject.myapp/oauth2redirect.

var authenticator = new OAuth2Authenticator(
            <ClientId>,
            null,
            "openid profile email accounting.transactions accounting.settings offline_access",
            new <AuthoriseationEndpoint>,
            new Uri("https://com.myproject.myapp/oauth2redirect"),
            new <TokenEndpoint>,
            null,
            true);

Then, I'm created a new activity in my Android project with the intentFilter

    [Activity(Label = "CustomUrlSchemeInterceptorActivity", NoHistory = true)]
    [IntentFilter(new[] { Android.Content.Intent.ActionView },
        Categories = new[] { Android.Content.Intent.CategoryDefault, Android.Content.Intent.CategoryBrowsable },
        DataSchemes = new[] { "com.myproject.myapp" },
        DataPath = "/oauth2redirect")]
    public class CustomUrlSchemeInterceptorActivity : Activity
    {
        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            var uri = new Uri(Intent.Data.ToString());

            // Load redirectUrl page
            AuthenticationState.Authenticator.OnPageLoading(uri);

            Finish();

            // Create your application here
        }
    }

When I run my app, the login screen pops up as expected. My app is registered okay with the cloud application fine but the redirect doesn't work. I just get a browser error saying the site can't be reached. Server IP address could not be found DNS_PROBE_FINISHED_NXDOMAIN

Upvotes: 1

Views: 886

Answers (1)

Leo Zhu
Leo Zhu

Reputation: 14956

try to change 

var authenticator = new OAuth2Authenticator(
        <ClientId>,
        null,
        "openid profile email accounting.transactions accounting.settings offline_access",
        new <AuthoriseationEndpoint>,
        new Uri("https://com.myproject.myapp/oauth2redirect"),
        new <TokenEndpoint>,
        null,
        true);

to 

var authenticator = new OAuth2Authenticator(
        <ClientId>,
        null,
        "openid profile email accounting.transactions accounting.settings offline_access",
        new <AuthoriseationEndpoint>,
        new Uri("com.myproject.myapp:/oauth2redirect"),
        new <TokenEndpoint>,
        null,
        true);

You could not add https:// to your custom redirect url after you define a Schemes. Note that only a single / can appear after the scheme component. you could refer to Redirect URL

Upvotes: 0

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