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Code Issues 2 Packages Projects Releases 10 Wiki Activity

fix: enhance chat message handling by implementing full Unicode support and collapsing excessive newlines

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HueByte
2026-02-19 21:11:06 +01:00
parent 9f303b5311
commit 6965ba573e
3 changed files with 69 additions and 180 deletions
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src/EchoHub.Server/Services/ChatService.cs
+1 -81
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@@ -1,4 +1,3 @@
using System.Text;
using EchoHub.Core.Constants;
using EchoHub.Core.Contracts;
using EchoHub.Core.DTOs;
@@ -145,8 +144,7 @@ public class ChatService : IChatService
if (content.Length > HubConstants.MaxMessageLength)
return $"Message exceeds maximum length of {HubConstants.MaxMessageLength} characters.";
// Sanitize: convert emoji to text, collapse newlines
content = ConvertEmoji(content);
// Sanitize: collapse excessive newlines
content = SanitizeNewlines(content);
using var scope = _scopeFactory.CreateScope();
@@ -348,84 +346,6 @@ public class ChatService : IChatService
return (user.Id, user.Username);
}
/// <summary>
/// Replace emoji with text shortcodes. TUI terminals can't render wide chars reliably.
/// </summary>
private static string ConvertEmoji(string content)
{
var sb = new StringBuilder(content.Length);
foreach (var rune in content.EnumerateRunes())
{
if (EmojiMap.TryGetValue(rune.Value, out var name))
sb.Append(name);
else if (rune.Value >= 0x1F000) // supplementary emoji planes
sb.Append($"[?]");
else if (rune.Value is 0x200D or 0xFE0F or 0xFE0E) // ZWJ, variation selectors
{ } // strip silently
else
sb.Append(rune.ToString());
}
return sb.ToString();
}
private static readonly Dictionary<int, string> EmojiMap = new()
{
[0x1F600] = ":grinning:", [0x1F601] = ":grin:", [0x1F602] = ":joy:",
[0x1F603] = ":smiley:", [0x1F604] = ":smile:", [0x1F605] = ":sweat_smile:",
[0x1F606] = ":laughing:", [0x1F607] = ":angel:", [0x1F608] = ":imp:",
[0x1F609] = ":wink:", [0x1F60A] = ":blush:", [0x1F60B] = ":yum:",
[0x1F60C] = ":relieved:", [0x1F60D] = ":heart_eyes:", [0x1F60E] = ":sunglasses:",
[0x1F60F] = ":smirk:", [0x1F610] = ":neutral:", [0x1F611] = ":expressionless:",
[0x1F612] = ":unamused:", [0x1F613] = ":sweat:", [0x1F614] = ":pensive:",
[0x1F615] = ":confused:", [0x1F616] = ":confounded:", [0x1F617] = ":kiss:",
[0x1F618] = ":kissing_heart:", [0x1F619] = ":kissing:", [0x1F61A] = ":kissing_closed_eyes:",
[0x1F61B] = ":tongue:", [0x1F61C] = ":wink_tongue:", [0x1F61D] = ":squint_tongue:",
[0x1F61E] = ":disappointed:", [0x1F61F] = ":worried:", [0x1F620] = ":angry:",
[0x1F621] = ":rage:", [0x1F622] = ":cry:", [0x1F623] = ":persevere:",
[0x1F624] = ":triumph:", [0x1F625] = ":disappointed_relieved:", [0x1F626] = ":frowning:",
[0x1F627] = ":anguished:", [0x1F628] = ":fearful:", [0x1F629] = ":weary:",
[0x1F62A] = ":sleepy:", [0x1F62B] = ":tired:", [0x1F62C] = ":grimacing:",
[0x1F62D] = ":sob:", [0x1F62E] = ":open_mouth:", [0x1F62F] = ":hushed:",
[0x1F630] = ":cold_sweat:", [0x1F631] = ":scream:", [0x1F632] = ":astonished:",
[0x1F633] = ":flushed:", [0x1F634] = ":sleeping:", [0x1F635] = ":dizzy_face:",
[0x1F636] = ":no_mouth:", [0x1F637] = ":mask:", [0x1F638] = ":smile_cat:",
[0x1F642] = ":slight_smile:", [0x1F643] = ":upside_down:",
[0x1F644] = ":roll_eyes:", [0x1F910] = ":zipper_mouth:",
[0x1F911] = ":money_mouth:", [0x1F912] = ":thermometer_face:",
[0x1F913] = ":nerd:", [0x1F914] = ":thinking:", [0x1F915] = ":head_bandage:",
[0x1F920] = ":cowboy:", [0x1F921] = ":clown:", [0x1F923] = ":rofl:",
[0x1F924] = ":drooling:", [0x1F925] = ":lying:",
[0x1F970] = ":smiling_hearts:", [0x1F971] = ":yawning:",
[0x1F972] = ":smiling_tear:", [0x1F973] = ":party:",
[0x1F974] = ":woozy:", [0x1F975] = ":hot:", [0x1F976] = ":cold:",
[0x1F978] = ":disguised:", [0x1F979] = ":holding_back_tears:",
[0x1F97A] = ":pleading:", [0x1F92A] = ":zany:", [0x1F92B] = ":shushing:",
[0x1F92C] = ":censored:", [0x1F92D] = ":hand_over_mouth:",
[0x1F92E] = ":vomiting:", [0x1F92F] = ":exploding_head:",
// Gestures
[0x1F44D] = ":+1:", [0x1F44E] = ":-1:", [0x1F44F] = ":clap:",
[0x1F44B] = ":wave:", [0x1F44C] = ":ok_hand:", [0x1F44A] = ":punch:",
[0x1F4AA] = ":muscle:", [0x1F64F] = ":pray:", [0x1F91D] = ":handshake:",
[0x1F90C] = ":pinched_fingers:", [0x1F918] = ":metal:", [0x1F919] = ":call_me:",
// Hearts
[0x2764] = "<3", [0x1F494] = "</3", [0x1F495] = "<3<3",
[0x1F496] = ":sparkling_heart:", [0x1F497] = ":heartbeat:",
[0x1F499] = ":blue_heart:", [0x1F49A] = ":green_heart:",
[0x1F49B] = ":yellow_heart:", [0x1F49C] = ":purple_heart:",
[0x1F5A4] = ":black_heart:", [0x1F90D] = ":white_heart:",
// Common objects
[0x1F525] = ":fire:", [0x1F4A9] = ":poop:", [0x1F480] = ":skull:",
[0x1F4AF] = ":100:", [0x1F389] = ":tada:", [0x1F38A] = ":confetti:",
[0x1F3B5] = ":music:", [0x1F3B6] = ":notes:", [0x1F4A4] = ":zzz:",
[0x1F4A5] = ":boom:", [0x1F4A2] = ":anger:", [0x1F4AC] = ":speech:",
[0x1F440] = ":eyes:", [0x1F648] = ":see_no_evil:",
[0x1F649] = ":hear_no_evil:", [0x1F64A] = ":speak_no_evil:",
// Misc BMP symbols commonly used as emoji
[0x2728] = ":sparkles:", [0x2B50] = ":star:", [0x26A1] = ":zap:",
[0x2705] = ":white_check:", [0x274C] = ":x:", [0x274E] = ":x:",
[0x2049] = ":!?:", [0x203C] = ":!!:",
};
/// <summary>
/// Collapse consecutive newlines and cap total line count to prevent newline spam.
/// </summary>