public virtual async Task <IOAuth1Account> AuthenticateAsync(IOAuth1Options options)
{
// Set the current expected redirect uri
oauth = new OAuth1(options);
var url = await oauth.GetInitialUrlAsync();
tcsAuth = new TaskCompletionSource <IOAuth1Account>();
// DO TABS
authSession = new CustomTabsAuthSession();
authSession.AuthTaskCompletionSource = new TaskCompletionSource <IOAuth1Account>();
authSession.ParentActivity = Plugin.SocialAuth.Droid.SocialAuth.CurrentActivity;
authSession.CustomTabsActivityManager = new CustomTabsActivityManager(authSession.ParentActivity);
authSession.CustomTabsActivityManager.NavigationEvent += (navigationEvent, extras) =>
{
if (navigationEvent == CustomTabsCallback.TabHidden)
{
if (authSession.AuthTaskCompletionSource != null)
{
authSession.AuthTaskCompletionSource.TrySetCanceled();
}
}
};
authSession.CustomTabsActivityManager.CustomTabsServiceConnected += delegate
{
var ctam = authSession.CustomTabsActivityManager;
var ses = ctam.Session;
var builder = new CustomTabsIntent.Builder(ses)
.SetShowTitle(true);
var customTabsIntent = builder.Build();
customTabsIntent.Intent.AddFlags(Android.Content.ActivityFlags.SingleTop | ActivityFlags.NoHistory | ActivityFlags.NewTask);
CustomTabsHelper.AddKeepAliveExtra(authSession.ParentActivity, customTabsIntent.Intent);
customTabsIntent.LaunchUrl(authSession.ParentActivity, Android.Net.Uri.Parse(url.AbsoluteUri));
};
if (!authSession.CustomTabsActivityManager.BindService())
{
tcsAuth.TrySetException(new Exception("CustomTabs not supported."));
}
return(await tcsAuth.Task);
}
public bool Callback(Intent intent, Bundle state)
{
if (authSession == null || intent == null)
{
return(false);
}
var uri = new Uri(intent.Data.ToString());
// Only handle schemes we expect
if (!WebUtil.CanHandleCallback(oauth.CallbackUrl, uri))
{
return(false);
}
var resp = oauth.ParseCallback(uri);
IDictionary <string, string> items = null;
var accessTokenTask = Task.Run(async() =>
{
items = await oauth.GetAccessTokenAsync(resp);
});
accessTokenTask.Wait();
var account = oauth.GetAccountFromResponse <OAuth1Account>(items);
if (account == null)
{
tcsAuth?.TrySetException(new Exception("Failed to parse server response."));
}
else
{
tcsAuth?.TrySetResult(account);
}
oauth = null;
authSession = null;
return(true);
}
static async Task BeginAuthentication(WebAuthenticator authenticator)
{
try
{
var uri = (await authenticator.GetInitialUrl());
string redirectUrl = uri.GetParameter("redirect_uri");
var scheme = new Uri(redirectUrl).Scheme;
var authSession = new CustomTabsAuthSession
{
Authenticator = authenticator,
ParentActivity = activityLifecycleManager.CurrentActivity,
};
authenticators[scheme] = authSession;
authSession.CustomTabsActivityManager = new CustomTabsActivityManager(authSession.ParentActivity);
authSession.CustomTabsActivityManager.CustomTabsServiceConnected += delegate
{
var builder = new CustomTabsIntent.Builder(authSession.CustomTabsActivityManager.Session)
.SetShowTitle(true);
var customTabsIntent = builder.Build();
customTabsIntent.Intent.AddFlags(Android.Content.ActivityFlags.SingleTop | ActivityFlags.NoHistory | ActivityFlags.NewTask);
CustomTabsHelper.AddKeepAliveExtra(authSession.ParentActivity, customTabsIntent.Intent);
customTabsIntent.LaunchUrl(authSession.ParentActivity, Android.Net.Uri.Parse(uri.AbsoluteUri));
};
if (!authSession.CustomTabsActivityManager.BindService())
{
authenticator.OnError("CustomTabs not supported.");
authenticators.Remove(scheme);
}
}
catch (Exception ex)
{
authenticator.OnError(ex.Message);
}
}
public bool Callback(Intent intent, Bundle state)
{
if (authSession == null || intent == null)
{
return(false);
}
var uri = new Uri(intent.Data.ToString());
// Only handle schemes we expect
if (!WebUtil.CanHandleCallback(oauth.RedirectUrl, uri))
{
return(false);
}
IOAuth2Account account = null;
var accessTokenTask = Task.Run(async() =>
{
account = await oauth.ParseCallbackAsync <OAuth2Account>(uri);
});
accessTokenTask.Wait();
if (account == null)
{
tcsAuth?.TrySetException(new Exception("Failed to parse server response."));
}
else
{
tcsAuth?.TrySetResult(account);
}
oauth = null;
authSession = null;
return(true);
}
