public async Task <IActionResult> SpotifyCallback(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "auth/spotify")] HttpRequest req,
ILogger log)
{
// TODO: Validate Spotify Premium account
// // TODO: Read secure identifier from table
// code=AQDzFkjIyKjAmwaH7Xmrb61_2RoEjnq2TfPZE9U4SdnsTO4cwpIADStoYniAziBf1vSjY7of6eSSlvQUl-KrgFCw_sTz184M_YUUV0eaH3uhTqE4VTmF1MPr-UnD1hlkYfxGfRiP2TYdeG8CA24XOz4ic3F9PUpOrAYSz1YlseMsIaESRHBz5occhFP0
// error=
// state=
// TODO: Verify the spotify account came from the user that authorized it
if (!string.IsNullOrWhiteSpace(req.Query["error"]))
{
log.LogInformation("User spotify error: {error}", req.Query["error"]);
return(new BadRequestObjectResult(req.Query["error"])); // TODO: Redirect to telegram - handle denied auth
}
else if (string.IsNullOrWhiteSpace(req.Query["code"]))
{
log.LogCritical("wtf, code missing and error not found.", req.Query);
// TODO: Handle weird state that shouldn't happen
return(new BadRequestObjectResult("Something went wrong. I'll look into it."));
}
var stateString = req.Query["state"].FirstOrDefault();
if (string.IsNullOrWhiteSpace(stateString))
{
// TODO: Handle bad state error
log.LogError("No state");
return(new BadRequestObjectResult("No State"));
}
AuthorizationState state = null;
try
{
state = spotifyService.DeserializeState(stateString);
}
catch (Exception ex)
{
// TODO: Handle bad state error
log.LogError(ex, "Unexpected error deserializing state");
return(new BadRequestObjectResult("Bad State"));
}
// TODO: Validate security token
var user = await userService.GetUser(state.UserId);
if (user == null)
{
// TODO: Handle not found
return(new BadRequestObjectResult("Couldn't find the originating request"));
}
var profile = await spotifyService.RedeemAuthorizationCode(user, req.Query["code"].FirstOrDefault());
// TODO: differentiate message based on new connection or scope update
await telegramBotClient.SendTextMessageAsync(
user.ServiceId,
"Done!" // TODO: use one of those sweet confirmation animations
);
var command = commandService.GetCommand(state.Message.Text);
if (command == null)
{
log.LogCritical("No command callback for message! This shouldn't ever happen {message} {user}", state.Message.Text, state.UserId);
return(new InternalServerErrorResult());
}
await command.Process(user, state.Message, log, isAuthorizationCallback : true);
// TODO: Figure out how to redirect to specific chat
//return new RedirectResult($"https://tg.me/{config.TelegramBotUserName}");
return(new RedirectResult("tg://"));
}