public async Task <AuthInfo> LoginAsync()
{
_loginResultWaitHandle = new AsyncAutoResetEvent(false);
try
{
using (var httpClient = HttpClientFactory.Build())
{
var httpResult = await httpClient.GetAsync(Constants.DiscoveryEndpoint);
var json = await httpResult.Content.ReadAsStringAsync();
var jObj = JObject.Parse(json);
var configuration = new AuthorizationServiceConfiguration(
Android.Net.Uri.Parse(jObj["authorization_endpoint"].ToString()),
Android.Net.Uri.Parse(jObj["token_endpoint"].ToString()))
{
DiscoveryDoc = new AuthorizationServiceDiscovery(new JSONObject(json))
};
MakeAuthRequest(configuration, new AuthState());
await _loginResultWaitHandle.WaitAsync();
}
}
catch (AuthorizationException) { }
return(new AuthInfo()
{
IsAuthorized = _authState?.IsAuthorized ?? false,
AccessToken = _authState?.AccessToken,
IdToken = _authState?.IdToken,
RefreshToken = _authState?.RefreshToken,
Scope = _authState?.Scope
});
}
private async Task HandleReject()
{
using (var client = HttpClientFactory.Build())
{
var tokenStorage = DependencyService.Get <ITokenStorage>();
var authInfo = await tokenStorage.GetAuthInfo();
var jObj = new JObject
{
{ "auth_req_id", AuthReqId },
{ "id_token_hint", authInfo.IdToken }
};
var request = new HttpRequestMessage
{
Method = HttpMethod.Post,
RequestUri = new Uri(Constants.RejectAuthReqId),
Content = new StringContent(jObj.ToString(), Encoding.UTF8, "application/json")
};
await client.SendAsync(request);
if (IsRejected != null)
{
IsRejected(this, EventArgs.Empty);
}
}
}
private async Task ConfirmAuthReqId(string idToken, string authReqId, IEnumerable <string> permissionIds)
{
using (var client = HttpClientFactory.Build())
{
var jObj = new JObject
{
{ "id_token_hint", idToken },
{ "auth_req_id", authReqId },
{ "permission_ids", JArray.FromObject(permissionIds) }
};
var httpRequestMessage = new HttpRequestMessage
{
RequestUri = new Uri(Constants.ConfirmAuthReqId),
Method = HttpMethod.Post,
Content = new StringContent(jObj.ToString(), Encoding.UTF8, "application/json")
};
await client.SendAsync(httpRequestMessage);
}
}
internal void NotifyOfCallback(Intent intent)
{
try
{
if (!intent.HasExtra(Constants.AuthStateKey))
{
_authState = null;
}
else
{
try
{
_authState = AuthState.JsonDeserialize(intent.GetStringExtra(Constants.AuthStateKey));
}
catch (JSONException)
{
_authState = null;
}
}
if (_authState != null)
{
AuthorizationResponse response = AuthorizationResponse.FromIntent(intent);
AuthorizationException authEx = AuthorizationException.FromIntent(intent);
_authState.Update(response, authEx);
if (response != null)
{
try
{
var clientAuthentication = _authState.ClientAuthentication;
}
catch (ClientAuthenticationUnsupportedAuthenticationMethod)
{
SetWaitHandle();
return;
}
var request = response.CreateTokenExchangeRequest();
using (var httpClient = HttpClientFactory.Build())
{
var jObj = new List <KeyValuePair <string, string> >
{
new KeyValuePair <string, string>("client_id", request.ClientId),
new KeyValuePair <string, string>("code", request.AuthorizationCode),
new KeyValuePair <string, string>("code_verifier", request.CodeVerifier),
new KeyValuePair <string, string>("grant_type", request.GrantType),
new KeyValuePair <string, string>("scope", request.Scope),
new KeyValuePair <string, string>("redirect_uri", request.RedirectUri.ToString())
};
var httpRequest = new HttpRequestMessage
{
Method = HttpMethod.Post,
RequestUri = new Uri(request.Configuration.TokenEndpoint.ToString()),
Content = new FormUrlEncodedContent(jObj)
};
var httpResult = httpClient.SendAsync(httpRequest).Result;
var tokenResponseJObject = JObject.Parse(httpResult.Content.ReadAsStringAsync().Result);
tokenResponseJObject.Add("request", JObject.Parse(request.JsonSerializeString()));
var tokenResponse = TokenResponse.JsonDeserialize(new JSONObject(tokenResponseJObject.ToString()));
ReceivedTokenResponse(tokenResponse, null);
}
}
}
else
{
SetWaitHandle();
}
}
catch (Exception)
{
SetWaitHandle();
}
}
