public static void Dispatch(Tweet tweet, ITweetHandler handler)
{
if (tweet.IsRetweet)
{
return;
}
if (tweet.AuthorFollowers < 10)
{
return; // attempt to cut down on spam.
}
var encodedWords = ConfigManager.LoadConfig <string>("word-filter");
var decodedString = Encoding.UTF8.GetString(Convert.FromBase64String(encodedWords));
// Bad words base 64 encoded for obvious reasons.
var badWords = decodedString.ToLower().Split("\r\n");
var tweetWords = tweet.Message.ToLower().Replace("#", "").Split(" ");
var badTweetWords = tweetWords.Intersect(badWords);
if (badTweetWords.Count() > 0)
{
Console.WriteLine("Filtering tweet: ", tweet);
return;
}
handler.Handle(tweet);
}
public static bool TryGetHandler(string handlerName, out ITweetHandler handler)
{
if (_loadedHandlers == null)
{
throw new NullReferenceException("Handlers must be loaded before attempting to access them.");
}
_loadedHandlers.TryGetValue(handlerName, out handler);
return(handler != null);
}
public static void LoadRegistered()
{
_loadedHandlers.Clear();
var settings = ConfigManager.LoadConfig <HandlerRegistry>("handlers");
var handlerDetails = new List <HandlerDetails>();
var assemblyTypes = Assembly.GetExecutingAssembly().GetTypes();
foreach (var handler in settings.Handlers)
{
var name = handler.Name;
Type correctType = null;
try
{
correctType = assemblyTypes.First(t => {
return(t.Name == handler.Type &&
typeof(ITweetHandler).IsAssignableFrom(t) &&
typeof(ITweetHandler).Name != t.Name);
});
}
catch (InvalidOperationException ex)
{
throw new InvalidOperationException($"Could not find tweet handler type for '{handler.Type}'", ex);
}
var data = handler.Data;
HandlerDetails details = new HandlerDetails(name, correctType, data);
handlerDetails.Add(details);
}
foreach (var details in handlerDetails)
{
ITweetHandler createdHandler = Create(details.Type, details.Data);
_loadedHandlers.Add(details.Name, createdHandler);
}
}
public TweetEventWorker(ITweetHandler tweetHandler, IHubContext <TweetHub> tweetHub, ILogger <TweetEventWorker> logger)
{
_tweetHandler = tweetHandler;
_tweetHub = tweetHub;
_logger = logger;
}
