public Task <Credentials> GetCredentialsAsync()
{
string tokenInfoJson = VaultManager.GetPassword(VaultTokenInfoResourceKey, VaultDefaultUnusedUserName);
if (String.IsNullOrWhiteSpace(tokenInfoJson))
{
// There has to be at least a JSON somewhere (even if invalid at this time) - otherwise the authz page was somehow not called
throw new InvalidOperationException();
}
var tokenInfo = JsonConvert.DeserializeObject <TokenSecurityInfo>(tokenInfoJson);
// TODO: do we need to refresh the access token?
return(Task.FromResult(new Credentials(tokenInfo.AccessToken)));
}
public async Task <bool> CompleteOAuthFlowAsync(string responseData)
{
// responseData value eg http://example.com/path?code=4cba03187d6cd6720217&state=6dfa60685ac94a29bdde2d9f3cbdce0e
var responseUri = new Uri(responseData);
var decoder = new WwwFormUrlDecoder(responseUri.Query);
var code = decoder.GetFirstValueByName("code");
var state = decoder.GetFirstValueByName("state");
string storedState = VaultManager.GetPassword(VaultStateResourceKey, VaultDefaultUnusedUserName);
if (storedState != state)
{
return(false);
}
// We are storing the code to later be able to refresh the access token
VaultManager.Save(VaultTokenCodeResourceKey, VaultDefaultUnusedUserName, code);
bool ok = await AcquireAccessTokenAsync(code, state).ConfigureAwait(false);;
return(ok);
}
