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Hcs.Client/GostXades/Helpers/X509NameHelper.cs

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+using Org.BouncyCastle.Asn1.X509;
+using System.Linq;
+using System.Text;
+
+namespace Hcs.GostXades.Helpers
+{
+    public static class X509NameHelper
+    {
+        /// <summary>
+        /// Исправить строку X509IssuerName для рукожопых пейсателей из Ланита
+        /// </summary>
+        /// <param name="x509Name">Исходная строка из сертификата</param>
+        /// <returns>Исправленная строка, чтобы ее понимал сервер ГИС ЖКХ</returns>
+        public static string ToX509IssuerName(this X509Name x509Name)
+        {
+            string x509IssuerName = x509Name.ToString();
+            var pairs = x509IssuerName
+                    .Replace("\\,", "^_^")
+                    .Split(',')
+                    .Select(part => part.Split('='))
+                    .Select(lrParts => new ReplacementPair
+                    {
+                        Key = lrParts[0],
+                        Value = lrParts.Length == 2 ? lrParts[1] : string.Empty
+                    }).ToList();
+
+            var nCount = pairs.Count;
+            var result = new StringBuilder();
+            var i = 0;
+            foreach (var pair in pairs)
+            {
+                switch (pair.Key.ToLower())
+                {
+                    case "t":
+                    case "title":
+                        pair.Key = "2.5.4.12";
+                        break;
+
+                    case "g":
+                    case "givenname":
+                        pair.Key = "2.5.4.42";
+                        break;
+                    case "e":
+                        pair.Key = "1.2.840.113549.1.9.1";
+                        break;
+                    case "sn":
+                    case "surname":
+                        pair.Key = "2.5.4.4";
+                        break;
+
+                    case "ou":
+                    case "orgunit":
+                        pair.Key = "2.5.4.11";
+                        break;
+
+                    case "unstructured-name":
+                    case "unstructuredname":
+                        pair.Key = "1.2.840.113549.1.9.2";
+                        break;
+                }
+
+                result.Append($"{pair.Key}={pair.Value}{(i != (nCount - 1) ? ", " : string.Empty)}");
+                i++;
+            }
+            return result.ToString().Replace("^_^", "\\,");
+        }
+    }
+
+    internal class ReplacementPair
+    {
+        public string Key { get; set; }
+        public string Value { get; set; }
+    }
+}