78 lines
2.2 KiB
C#
78 lines
2.2 KiB
C#
using TH1_Logic.Chat;
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namespace TH1_UI.View.Outside
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{
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internal static class RoomNameInputValidator
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{
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public const int MinRoomNameLength = 2;
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public const int MaxRoomNameLength = 20;
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public const string InvalidRoomNameHint = "房间名称包含不适当内容，请修改后再确认。禁止使用辱骂、歧视、色情、广告、冒充官方或泄露隐私等内容。";
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public const string InvalidCharactersHint = "房间名称只能使用中文、英文字母、数字、下划线、中划线和点。";
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public enum ErrorType
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{
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None,
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Illegal,
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TooShort
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}
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public static string SanitizeAllowedCharacters(string input)
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{
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if (string.IsNullOrEmpty(input)) return string.Empty;
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var result = new System.Text.StringBuilder();
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foreach (char c in input.Trim())
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{
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bool isChinese = c >= '\u4e00' && c <= '\u9fff';
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bool isLetter = (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
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bool isDigit = c >= '0' && c <= '9';
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bool isAllowedSymbol = c == '_' || c == '-' || c == '.';
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if (isChinese || isLetter || isDigit || isAllowedSymbol)
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{
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result.Append(c);
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}
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if (result.Length >= MaxRoomNameLength) break;
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}
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return result.ToString();
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}
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public static bool TryValidateForSubmit(string input, string fallbackRoomName, out string roomName, out string hint)
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{
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ErrorType errorType;
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if (TryValidateForSubmitWithErrorType(input, fallbackRoomName, out roomName, out errorType))
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{
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hint = null;
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return true;
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}
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hint = errorType == ErrorType.TooShort ? string.Empty : InvalidRoomNameHint;
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return false;
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}
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public static bool TryValidateForSubmitWithErrorType(string input, string fallbackRoomName, out string roomName, out ErrorType errorType)
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{
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roomName = SanitizeAllowedCharacters(input);
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if (string.IsNullOrEmpty(roomName)) roomName = SanitizeAllowedCharacters(fallbackRoomName);
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if (roomName.Length < MinRoomNameLength)
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{
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errorType = ErrorType.TooShort;
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return false;
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}
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var filtered = BannedWordFilter.Filter(roomName, BannedTextContext.Name);
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if (filtered != roomName)
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{
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errorType = ErrorType.Illegal;
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return false;
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}
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errorType = ErrorType.None;
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return true;
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}
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}
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}
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