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//
// X509ChainElement.cs - System.Security.Cryptography.X509Certificates.X509ChainElement
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
// Copyright (C) 2005-2006 Novell Inc. (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.
//
#if NET_2_0 && SECURITY_DEP
namespace System.Security.Cryptography.X509Certificates {
public class X509ChainElement {
private X509Certificate2 certificate;
private X509ChainStatus[] status;
private string info;
// constructors
// only accessible from X509Chain.ChainElements
internal X509ChainElement (X509Certificate2 certificate, X509ChainStatusFlags flags)
{
this.certificate = certificate;
if (flags == X509ChainStatusFlags.NoError) {
status = new X509ChainStatus [0];
} else {
int size = Count (flags);
status = new X509ChainStatus [size];
int n = 0;
// process every possible error
Set (status, ref n, flags, X509ChainStatusFlags.UntrustedRoot);
Set (status, ref n, flags, X509ChainStatusFlags.NotTimeValid);
// not yet sorted after this...
Set (status, ref n, flags, X509ChainStatusFlags.NotTimeNested);
Set (status, ref n, flags, X509ChainStatusFlags.Revoked);
Set (status, ref n, flags, X509ChainStatusFlags.NotSignatureValid);
Set (status, ref n, flags, X509ChainStatusFlags.NotValidForUsage);
Set (status, ref n, flags, X509ChainStatusFlags.RevocationStatusUnknown);
Set (status, ref n, flags, X509ChainStatusFlags.Cyclic);
Set (status, ref n, flags, X509ChainStatusFlags.InvalidExtension);
Set (status, ref n, flags, X509ChainStatusFlags.InvalidPolicyConstraints);
Set (status, ref n, flags, X509ChainStatusFlags.InvalidBasicConstraints);
Set (status, ref n, flags, X509ChainStatusFlags.InvalidNameConstraints);
Set (status, ref n, flags, X509ChainStatusFlags.HasNotSupportedNameConstraint);
Set (status, ref n, flags, X509ChainStatusFlags.HasNotDefinedNameConstraint);
Set (status, ref n, flags, X509ChainStatusFlags.HasNotPermittedNameConstraint);
Set (status, ref n, flags, X509ChainStatusFlags.HasExcludedNameConstraint);
Set (status, ref n, flags, X509ChainStatusFlags.PartialChain);
Set (status, ref n, flags, X509ChainStatusFlags.CtlNotTimeValid);
Set (status, ref n, flags, X509ChainStatusFlags.CtlNotSignatureValid);
Set (status, ref n, flags, X509ChainStatusFlags.CtlNotValidForUsage);
Set (status, ref n, flags, X509ChainStatusFlags.OfflineRevocation);
Set (status, ref n, flags, X509ChainStatusFlags.NoIssuanceChainPolicy);
}
// so far String.Empty is the only thing I've seen.
// The interesting stuff is inside X509ChainStatus.Information
info = String.Empty;
}
// properties
public X509Certificate2 Certificate {
get { return certificate; }
}
public X509ChainStatus[] ChainElementStatus {
get { return status; }
}
public string Information {
get { return info; }
}
// private stuff
private int Count (X509ChainStatusFlags flags)
{
int size = 0;
int n = 0;
int f = (int) flags;
int m = 0x1;
while (n++ < 32) {
if ((f & m) == m)
size++;
m <<= 1;
}
return size;
}
private void Set (X509ChainStatus[] status, ref int position, X509ChainStatusFlags flags, X509ChainStatusFlags mask)
{
if ((flags & mask) != 0) {
status [position].Status = mask;
status [position].StatusInformation = X509ChainStatus.GetInformation (mask);
position++;
}
}
}
}
#endif
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