public static void Main(string[] args)
{
// two things it can do: get new access token, or refresh existing one
// if a data.ini file exists, use that and refresh
// if not exists, create new
var dataIniFileName = args.FirstOrDefault() ?? DefaultDataIniFileName;
var data = OAuthData.TryReadData(dataIniFileName);
var t = data == null?DoNew(dataIniFileName) : DoExisting(data, dataIniFileName);
t.GetAwaiter().GetResult();
}
public static OAuthData Parse(string[] lines)
{
var data = new OAuthData();
foreach (var line in lines)
{
if (string.IsNullOrWhiteSpace(line) || line.StartsWith('#') || line.StartsWith("//"))
{
continue;
}
var tmp = line.Split('=', 2);
if (tmp.Length != 2)
{
continue;
}
var key = tmp[0].Trim();
var val = tmp[1].Trim();
switch (key)
{
case nameof(OAuthBaseUrl):
data.OAuthBaseUrl = val;
break;
case nameof(OAuthClientId):
data.OAuthClientId = val;
break;
case nameof(OAuthClientSecret):
data.OAuthClientSecret = val;
break;
case nameof(LocalPort):
data.LocalPort = int.Parse(val);
break;
case nameof(Scopes):
data.Scopes = val;
break;
case nameof(AccessToken):
data.AccessToken = val;
break;
case nameof(RefreshToken):
data.RefreshToken = val;
break;
}
}
return(data);
}
private static async Task DoNew(string dataIniFile)
{
Console.WriteLine($"No {dataIniFile} file found, generating a new one!");
// port
var portStr = Prompt("Local free port to use (leave empty to pick at random)");
var port = string.IsNullOrWhiteSpace(portStr) ? GetRandomFreePort() : int.Parse(portStr);
// local callback url
var defaultCallbackUrl = GetCallbackUrlForPort(port, DefaultCallbackUrlLocalPath);
Console.WriteLine(
$"Lets make up a callback/redirect url, enter if if you already have one or leave empty to use {defaultCallbackUrl}");
var callbackUrlLocalPath = Prompt(GetCallbackUrlForPort(port, "/"), false);
string callbackUrl;
if (string.IsNullOrWhiteSpace(callbackUrlLocalPath))
{
callbackUrl = defaultCallbackUrl;
callbackUrlLocalPath = DefaultCallbackUrlLocalPath;
}
else
{
callbackUrl = GetCallbackUrlForPort(port, $"/{callbackUrlLocalPath.Trim()}");
}
Console.WriteLine(
$"Create a new OAuth application with the following callback/redirect url: {callbackUrl}");
// oauth app details
var baseUrl = Prompt("OAuth Base Url", OsuOAuthBaseUrl);
var clientId = Prompt("OAuth Client ID");
var clientSecret = Prompt("OAuth Client Secret");
var scopes = Prompt("OAuth scopes");
var randomState = Guid.NewGuid().ToString();
var authUrl = BuildAuthUrl(baseUrl, clientId, callbackUrl, scopes, randomState);
var listener = new OAuthLocalhostCallbackListener(port, randomState, callbackUrlLocalPath);
listener.Start();
Console.WriteLine(
"opening a browser window, follow steps there till it tells you to close the thing again and then come back here");
Console.WriteLine("Waiting for valid response...");
OpenBrowser(authUrl);
var authCode = await listener.WaitForCode();
Console.WriteLine("OAuth response received, now turning into an access token...");
var token = await GetTokenFromAuthCode(baseUrl, clientId, clientSecret, callbackUrl, authCode);
Console.WriteLine("Access token received, saving to disk...");
var data = new OAuthData
{
OAuthBaseUrl = baseUrl,
OAuthClientId = clientId,
OAuthClientSecret = clientSecret,
LocalPort = port,
Scopes = scopes,
AccessToken = token.AccessToken,
RefreshToken = token.RefreshToken
};
await DoEnding(data, dataIniFile);
}