1 files changed, 195 insertions, 0 deletions
diff --git a/MediaBrowser.Server.Startup.Common/Cryptography/X509Extensions.cs b/MediaBrowser.Server.Startup.Common/Cryptography/X509Extensions.cs
new file mode 100644
index 000000000..c7d5f0046
--- /dev/null
+++ b/MediaBrowser.Server.Startup.Common/Cryptography/X509Extensions.cs
@@ -0,0 +1,195 @@
+//
+// X509Extensions.cs: Handles X.509 extensions.
+//
+// Author:
+//	Sebastien Pouliot  <sebastien@ximian.com>
+//
+// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
+// (C) 2004 Novell (http://www.novell.com)
+//
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections;
+
+namespace Emby.Common.Implementations.Security
+{
+    /*
+	 * Extensions  ::=  SEQUENCE SIZE (1..MAX) OF Extension
+	 * 
+	 * Note: 1..MAX -> There shouldn't be 0 Extensions in the ASN1 structure
+	 */
+    public sealed class X509ExtensionCollection : CollectionBase, IEnumerable {
+
+		private bool readOnly;
+
+		public X509ExtensionCollection () : base ()
+		{
+		}
+
+		public X509ExtensionCollection (ASN1 asn1) : this ()
+		{
+			readOnly = true;
+			if (asn1 == null)
+				return;
+			if (asn1.Tag != 0x30)
+				throw new Exception ("Invalid extensions format");
+			for (int i=0; i < asn1.Count; i++) {
+				X509Extension extension = new X509Extension (asn1 [i]);
+				InnerList.Add (extension);
+			}
+		}
+
+		public int Add (X509Extension extension) 
+		{
+			if (extension == null)
+				throw new ArgumentNullException ("extension");
+			if (readOnly)
+				throw new NotSupportedException ("Extensions are read only");
+		
+			return InnerList.Add (extension);
+		}
+
+		public void AddRange (X509Extension[] extension) 
+		{
+			if (extension == null)
+				throw new ArgumentNullException ("extension");
+			if (readOnly)
+				throw new NotSupportedException ("Extensions are read only");
+
+			for (int i = 0; i < extension.Length; i++) 
+				InnerList.Add (extension [i]);
+		}
+	
+		public void AddRange (X509ExtensionCollection collection) 
+		{
+			if (collection == null)
+				throw new ArgumentNullException ("collection");
+			if (readOnly)
+				throw new NotSupportedException ("Extensions are read only");
+
+			for (int i = 0; i < collection.InnerList.Count; i++) 
+				InnerList.Add (collection [i]);
+		}
+
+		public bool Contains (X509Extension extension) 
+		{
+			return (IndexOf (extension) != -1);
+		}
+
+		public bool Contains (string oid) 
+		{
+			return (IndexOf (oid) != -1);
+		}
+
+		public void CopyTo (X509Extension[] extensions, int index) 
+		{
+			if (extensions == null)
+				throw new ArgumentNullException ("extensions");
+
+			InnerList.CopyTo (extensions, index);
+		}
+
+		public int IndexOf (X509Extension extension) 
+		{
+			if (extension == null)
+				throw new ArgumentNullException ("extension");
+
+			for (int i=0; i < InnerList.Count; i++) {
+				X509Extension ex = (X509Extension) InnerList [i];
+				if (ex.Equals (extension))
+					return i;
+			}
+			return -1;
+		}
+
+		public int IndexOf (string oid) 
+		{
+			if (oid == null)
+				throw new ArgumentNullException ("oid");
+
+			for (int i=0; i < InnerList.Count; i++) {
+				X509Extension ex = (X509Extension) InnerList [i];
+				if (ex.Oid == oid)
+					return i;
+			}
+			return -1;
+		}
+
+		public void Insert (int index, X509Extension extension) 
+		{
+			if (extension == null)
+				throw new ArgumentNullException ("extension");
+
+			InnerList.Insert (index, extension);
+		}
+
+		public void Remove (X509Extension extension) 
+		{
+			if (extension == null)
+				throw new ArgumentNullException ("extension");
+
+			InnerList.Remove (extension);
+		}
+
+		public void Remove (string oid) 
+		{
+			if (oid == null)
+				throw new ArgumentNullException ("oid");
+
+			int index = IndexOf (oid);
+			if (index != -1)
+				InnerList.RemoveAt (index);
+		}
+
+		IEnumerator IEnumerable.GetEnumerator () 
+		{
+			return InnerList.GetEnumerator ();
+		}
+
+		public X509Extension this [int index] {
+			get { return (X509Extension) InnerList [index]; }
+		}
+
+		public X509Extension this [string oid] {
+			get {
+				int index = IndexOf (oid);
+				if (index == -1)
+					return null;
+				return (X509Extension) InnerList [index];
+			}
+		}
+
+		public byte[] GetBytes () 
+		{
+			if (InnerList.Count < 1)
+				return null;
+			ASN1 sequence = new ASN1 (0x30);
+			for (int i=0; i < InnerList.Count; i++) {
+				X509Extension x = (X509Extension) InnerList [i];
+				sequence.Add (x.ASN1);
+			}
+			return sequence.GetBytes ();
+		}
+	}
+}