private async Task LoadState()
{
var sw = Stopwatch.StartNew();
// in case the main save is corrupted, try the backup save
foreach (var filePath in new[] { GetStateFilePath(), GetStateFilePath() + ".bak" })
{
try
{
using var fileStream = File.OpenRead(filePath);
using var gzipStream = new GZipStream(fileStream, CompressionMode.Decompress);
_state = await JsonSerializer.DeserializeAsync <ScrapeState>(gzipStream);
_state.Chatty.SetDictionaries();
await _eventProvider.PrePopulate(_state.Chatty, _state.LolCounts, _state.Events);
_logger.LogInformation($"Loaded state in {sw.Elapsed}. Last event is #{await _eventProvider.GetLastEventId()}.");
return;
}
catch (Exception ex)
{
_logger.LogError(ex, $"Failed to read state from \"{filePath}\".");
}
}
}
public async Task Post(string username, string password, int parentId, string body)
{
if (body.Length > 0 && body[0] == '@')
{
body = " " + body;
}
var contentTypeId = 17;
var contentId = 17;
if (parentId != 0)
{
try
{
(contentTypeId, contentId) = await _threadParser.GetContentTypeId(parentId);
}
catch (ParsingException)
{
throw new Api400Exception(Api400Exception.Codes.INVALID_PARENT, "Invalid parent ID.");
}
}
var query = _downloadService.NewQuery();
query.Add("parent_id", parentId == 0 ? "" : $"{parentId}");
query.Add("content_type_id", $"{contentTypeId}");
query.Add("content_id", $"{contentId}");
query.Add("page", "");
query.Add("parent_url", "/chatty");
query.Add("body", _emojiConverter.ConvertEmojisToEntities(body.Replace("&", "&")));
var lastEventId = await _eventProvider.GetLastEventId();
var response = await _downloadService.DownloadWithUserLogin(
"https://www.shacknews.com/post_chatty.x",
username, password, query);
if (response.Contains("You must be logged in to post", StringComparison.Ordinal))
{
throw new Api400Exception(Api400Exception.Codes.INVALID_LOGIN,
$"Unable to log into user account [{username}].");
}
if (response.Contains("Please wait a few minutes before trying to post again", StringComparison.Ordinal))
{
throw new Api400Exception(Api400Exception.Codes.POST_RATE_LIMIT,
"Please wait a few minutes before trying to post again.");
}
if (response.Contains("banned", StringComparison.Ordinal))
{
throw new Api400Exception(Api400Exception.Codes.BANNED,
"You are banned.");
}
if (response.Contains("Trying to post to a nuked thread", StringComparison.Ordinal))
{
throw new Api400Exception(Api400Exception.Codes.NUKED,
"You cannot reply to a nuked thread or subthread.");
}
if (!response.Contains("fixup_postbox_parent_for_remove(", StringComparison.Ordinal))
{
throw new Api500Exception("Unexpected response from server: " + response);
}
// wait for the event to appear
var sw = Stopwatch.StartNew();
var maxTimeSpan = TimeSpan.FromSeconds(15);
while (sw.Elapsed < maxTimeSpan)
{
foreach (var ev in await _eventProvider.GetEvents(lastEventId))
{
if (ev.EventType == EventType.NewPost)
{
var eventData = (NewPostEventDataModel)ev.EventData;
if (eventData.Post.Author.Equals(username, StringComparison.InvariantCultureIgnoreCase))
{
return;
}
}
lastEventId = ev.EventId;
}
await Task.Delay(TimeSpan.FromSeconds(1));
}
}