Initial QMAX production app

2026-07-03 22:39:48 +03:00
commit 9fcc659438
119 changed files with 17959 additions and 0 deletions
@@ -0,0 +1,98 @@
+namespace QMax.Api.Services;
+
+public static class MessageTextSanitizer
+{
+    public static string? CleanChatPreview(string? value)
+    {
+        if (IsGenericMediaLabel(value))
+        {
+            return "\u041c\u0435\u0434\u0438\u0430";
+        }
+
+        return IsQuestionMarkArtifact(value)
+            ? "\u0421\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435"
+            : value;
+    }
+
+    public static string? CleanMessageText(string? value, bool hasAttachments)
+    {
+        if (hasAttachments && IsGenericAttachmentLabel(value))
+        {
+            return null;
+        }
+
+        if (!IsQuestionMarkArtifact(value))
+        {
+            return value;
+        }
+
+        return hasAttachments
+            ? null
+            : "\u0421\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435";
+    }
+
+    public static bool IsGenericMediaLabel(string? value)
+    {
+        return value?.Trim().ToLowerInvariant() switch
+        {
+            "\u0444\u043e\u0442\u043e" => true,
+            "photo" => true,
+            "image" => true,
+            "gif" => true,
+            "\u0432\u0438\u0434\u0435\u043e" => true,
+            "video" => true,
+            "\u0430\u0443\u0434\u0438\u043e" => true,
+            "audio" => true,
+            "\u0433\u043e\u043b\u043e\u0441\u043e\u0432\u043e\u0435" => true,
+            "voice" => true,
+            "\u0441\u0442\u0438\u043a\u0435\u0440" => true,
+            "sticker" => true,
+            "\u044d\u043c\u043e\u0434\u0437\u0438" => true,
+            "emoji" => true,
+            "\u043f\u0440\u0438\u043a\u0440\u0435\u043f\u043b\u0435\u043d\u043d\u044b\u0435 \u0444\u043e\u0442\u043e" => true,
+            "\u043f\u0440\u0438\u043a\u0440\u0435\u043f\u043b\u0451\u043d\u043d\u044b\u0435 \u0444\u043e\u0442\u043e" => true,
+            "attached photos" => true,
+            _ => false
+        };
+    }
+
+    public static bool IsGenericAttachmentLabel(string? value)
+    {
+        if (IsGenericMediaLabel(value))
+        {
+            return true;
+        }
+
+        return value?.Trim().ToLowerInvariant() switch
+        {
+            "\u0441\u043a\u0430\u0447\u0430\u0442\u044c" => true,
+            "download" => true,
+            "\u0437\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c" => true,
+            "file" => true,
+            "\u0444\u0430\u0439\u043b" => true,
+            "document" => true,
+            "\u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442" => true,
+            "contact" => true,
+            "\u043a\u043e\u043d\u0442\u0430\u043a\u0442" => true,
+            _ => false
+        };
+    }
+
+    public static bool IsQuestionMarkArtifact(string? value)
+    {
+        var text = value?.Trim();
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            return false;
+        }
+
+        var questionMarks = text.Count(c => c is '?' or '\uFFFD');
+        if (questionMarks < 4)
+        {
+            return false;
+        }
+
+        var meaningfulCharacters = text.Count(c => char.IsLetterOrDigit(c) && c != '?');
+        return meaningfulCharacters == 0;
+    }
+}