private static Task <string> GetAutenficationCode(string clientId, CancellationToken cancellation)
{
return(PromptCodeFromBrowser.Show($"https://accounts.google.com/o/oauth2/v2/auth?scope={Uri.EscapeDataString(Scopes.JoinToString(' '))}&" +
$"redirect_uri={RedirectUrl}&response_type=code&" +
$"client_id={clientId}", new Regex(@"Success code=(\S+)", RegexOptions.Compiled),
ToolsStrings.Uploader_EnterGoogleDriveAuthenticationCode, ToolsStrings.Uploader_GoogleDrive, cancellation: cancellation));
}
public static Task <OAuthCode> GetCode(
string name, string requestUrl, [CanBeNull] string noRedirectUrl,
string successCodeRegex = @"Success code=(\S+)", string redirectUrlKey = "redirect_uri",
string responseError = "error", string responseCode = "code",
string description = null, string title = null,
CancellationToken cancellation = default(CancellationToken))
{
var tcs = new TaskCompletionSource <OAuthCode>();
// Try to use web server and localhost to redirect
WebServer server = null;
var redirectUri = "http://localhost/" + SubUrl;
async void DisposeLater()
{
await Task.Delay(2000);
Logging.Debug("Stopping server…");
// ReSharper disable once AccessToModifiedClosure
server?.Dispose();
server = null;
}
server = new WebServer("http://+:80/" + SubUrl, new Log(e => {
tcs.TrySetException(e);
DisposeLater();
}), Unosquare.Labs.EmbedIO.RoutingStrategy.Wildcard);
if (server != null)
{
server.RegisterModule(new WebApiModule());
server.Module <WebApiModule>().RegisterController(() => new IndexPageController(responseError, responseCode, (e, s) => {
if (e != null || s == null)
{
tcs.TrySetException(new Exception(e == null ? "Code is missing" : "Authentication went wrong: " + e));
}
else
{
tcs.TrySetResult(new OAuthCode(false, s, redirectUri));
}
DisposeLater();
}));
cancellation.Register(() => {
tcs.TrySetCanceled();
DisposeLater();
});
try {
Logging.Debug($"Launching web-server on {SubUrl}…");
server.RunAsync();
var url = requestUrl + $"&{redirectUrlKey}={Uri.EscapeDataString(redirectUri)}";
#if DEBUG
Logging.Debug(url);
#endif
WindowsHelper.ViewInBrowser(url);
return(tcs.Task);
} catch (Exception e) {
Logging.Warning(e);
}
}
DisposeLater();
description = description ?? ToolsStrings.Uploader_EnterGoogleDriveAuthenticationCode.Replace("Google Drive", name);
title = title ?? ToolsStrings.Uploader_GoogleDrive.Replace("Google Drive", name);
return(PromptCodeFromBrowser.Show(noRedirectUrl != null ?
requestUrl + $"&{redirectUrlKey}={Uri.EscapeDataString(noRedirectUrl)}" :
requestUrl, new Regex(successCodeRegex, RegexOptions.Compiled),
description, title, cancellation: cancellation).ContinueWith(x => new OAuthCode(true, x.Result, noRedirectUrl)));
}