/// <summary>
/// Handles banning users that user non-ascii characters.
/// </summary>
/// <param name="config">The configuration for the twitch chat.</param>
/// <param name="client">The twitch client.</param>
/// <param name="messageInfo">The information on the chat message.</param>
/// <returns>True if the message should be passed on, false if it should be discarded.</returns>
public bool Handle(TwitchChatConfiguration config, TwitchClient client, OnMessageReceivedArgs messageInfo)
{
string chatMessage = messageInfo.ChatMessage.Message;
// First convert each character into their hex-sequence representation in Unicode. This will catch both
// characters outside of the ASCII character set (> 127) and non-emojis. We only allow ASCII characters
// and emojis.
var convertedMessageCharacters = UnicodeUtilities.ConvertToUnicodeNumber(chatMessage);
foreach (var character in convertedMessageCharacters)
{
// If there is no space, then just evaluate the single character.
if (!character.Contains(" "))
{
var num = int.Parse(character, NumberStyles.HexNumber);
if (num > 127 && !UnicodeUtilities.IsEmoji(character))
{
return(false);
}
continue;
}
// If there is a space, it can only possibly be an emoji to be valid.
if (!UnicodeUtilities.IsEmoji(character))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Handles banning the "Wanna become famous" bot message.
/// </summary>
/// <param name="config">The configuration for the twitch chat.</param>
/// <param name="client">The twitch client.</param>
/// <param name="messageInfo">The information on the chat message.</param>
/// <returns>True if the message should be passed on, false if it should be discarded.</returns>
public bool Handle(TwitchChatConfiguration config, TwitchClient client, OnMessageReceivedArgs messageInfo)
{
if (string.IsNullOrWhiteSpace(config.AccountUsername) || string.IsNullOrWhiteSpace(config.TwitchChannel))
{
return(true);
}
string chatMessage = messageInfo.ChatMessage.Message;
if (
(
chatMessage.Contains("Wanna become famous?", StringComparison.InvariantCultureIgnoreCase) ||
chatMessage.Contains("Want to become famous?", StringComparison.InvariantCultureIgnoreCase)
)
&&
(
Regex.IsMatch(chatMessage, Constants.REGEX_URL) ||
chatMessage.Contains("Buy", StringComparison.InvariantCultureIgnoreCase) &&
chatMessage.Contains("followers", StringComparison.InvariantCultureIgnoreCase) &&
chatMessage.Contains("viewers", StringComparison.InvariantCultureIgnoreCase)
))
{
return(false);
}
return(true);
}
/// <summary>
/// Initializes a new instance of the <see cref="AdminFiltersViewModel" /> class.
/// </summary>
/// <param name="config">The twitch configuration.</param>
public AdminFiltersViewModel(TwitchChatConfiguration config) : this()
{
this.config = config;
this.title = $"Admin Filters: {config.TwitchChannel}";
this.LookupBotsInFollowerListUser = this.config.TwitchChannel;
this.PropertyChanged += this.OnPropertyChanged;
}
/// <summary>
/// Initializes a new instance of the <see cref="TwitchChatConfigViewModel" /> class.
/// </summary>
/// <param name="config">The twitch chat configuration to base the row on.</param>
public TwitchChatConfigViewModel(TwitchChatConfiguration config)
: this()
{
this.PropertyChanged -= this.OnPropertyChanged;
this.chatConfig = config;
this.CopyFromConfig(config);
this.PropertyChanged += this.OnPropertyChanged;
}
/// <summary>
/// Initializes a new instance of the <see cref="AdminFiltersViewModel" /> class.
/// </summary>
public AdminFiltersViewModel()
{
// This is for the designer.
this.config = new TwitchChatConfiguration();
this.title = "Admin Filters";
}
