2005-01-20 Sebastien Pouliot <sebastien@ximian.com>

[mono.git] / mcs / class / System.Security / System.Security.Cryptography / AsnEncodedData.cs

diff --git a/mcs/class/System.Security/System.Security.Cryptography/AsnEncodedData.cs b/mcs/class/System.Security/System.Security.Cryptography/AsnEncodedData.cs
index fe4c3f43eb1e7a4132ffc4c638af7d657a1c7182..561bcd91e257e34e5617517dc10d34fa7476537b 100755 (executable)
--- a/mcs/class/System.Security/System.Security.Cryptography/AsnEncodedData.cs
+++ b/mcs/class/System.Security/System.Security.Cryptography/AsnEncodedData.cs
@@ -32,6 +32,9 @@
 using System.Security.Cryptography.X509Certificates;
 using System.Text;
 
+using Mono.Security;
+using Mono.Security.Cryptography;
+
 namespace System.Security.Cryptography {
 
        internal enum AsnDecodeStatus {
@@ -143,6 +146,8 @@ namespace System.Security.Cryptography {
                                return SubjectKeyIdentifierExtension (multiLine);
                        // other known objects (i.e. supported structure) - 
                        // but without any corresponding framework class
+                       case Oid.oidSubjectAltName:
+                               return SubjectAltName (multiLine);
                        case Oid.oidNetscapeCertType:
                                return NetscapeCertType (multiLine);
                        default:
@@ -209,6 +214,50 @@ namespace System.Security.Cryptography {
 
                // Indirectly (undocumented but) supported extensions
 
+               internal string SubjectAltName (bool multiLine)
+               {
+                       if (_raw.Length < 5)
+                               return "Information Not Available";
+
+                       try {
+                               ASN1 ex = new ASN1 (_raw);
+                               StringBuilder sb = new StringBuilder ();
+                               for (int i=0; i < ex.Count; i++) {
+                                       ASN1 el = ex [i];
+
+                                       string type = null;
+                                       string name = null;
+
+                                       switch (el.Tag) {
+                                       case 0x81:
+                                               type = "RFC822 Name=";
+                                               name = Encoding.ASCII.GetString (el.Value);
+                                               break;
+                                       case 0x82:
+                                               type = "DNS Name=";
+                                               name = Encoding.ASCII.GetString (el.Value);
+                                               break;
+                                       default:
+                                               type = String.Format ("Unknown ({0})=", el.Tag);
+                                               name = CryptoConvert.ToHex (el.Value);
+                                               break;
+                                       }
+
+                                       sb.Append (type);
+                                       sb.Append (name);
+                                       if (multiLine) {
+                                               sb.Append (Environment.NewLine);
+                                       } else if (i < ex.Count - 1) {
+                                               sb.Append (", ");
+                                       }
+                               }
+                               return sb.ToString ();
+                       }
+                       catch {
+                               return String.Empty;
+                       }
+               }
+
                internal string NetscapeCertType (bool multiLine)
                {
                        // 4 byte long, BITSTRING (0x03), Value length of 2