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//
// 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)
//
using System;
using System.Collections;
using Mono.Security;
namespace Mono.Security.X509 {
/*
* Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension
*
* Note: 1..MAX -> There shouldn't be 0 Extensions in the ASN1 structure
*/
#if INSIDE_CORLIB
internal
#else
public
#endif
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 ();
}
}
}
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