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//
// X501Name.cs: X.501 Distinguished Names stuff
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2002, 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.Globalization;
using System.Text;
using Mono.Security;
namespace Mono.Security.X509 {
// References:
// 1. Information technology - Open Systems Interconnection - The Directory: Models
// http://www.itu.int/rec/recommendation.asp?type=items&lang=e&parent=T-REC-X.501-200102-I
// 2. RFC2253: Lightweight Directory Access Protocol (v3): UTF-8 String Representation of Distinguished Names
// http://www.ietf.org/rfc/rfc2253.txt
/*
* Name ::= CHOICE { RDNSequence }
*
* RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
*
* RelativeDistinguishedName ::= SET OF AttributeTypeAndValue
*/
#if INSIDE_CORLIB
internal
#else
public
#endif
sealed class X501 {
static byte[] countryName = { 0x55, 0x04, 0x06 };
static byte[] organizationName = { 0x55, 0x04, 0x0A };
static byte[] organizationalUnitName = { 0x55, 0x04, 0x0B };
static byte[] commonName = { 0x55, 0x04, 0x03 };
static byte[] localityName = { 0x55, 0x04, 0x07 };
static byte[] stateOrProvinceName = { 0x55, 0x04, 0x08 };
static byte[] streetAddress = { 0x55, 0x04, 0x09 };
static byte[] serialNumber = { 0x55, 0x04, 0x05 };
static byte[] domainComponent = { 0x09, 0x92, 0x26, 0x89, 0x93, 0xF2, 0x2C, 0x64, 0x01, 0x19 };
static byte[] userid = { 0x09, 0x92, 0x26, 0x89, 0x93, 0xF2, 0x2C, 0x64, 0x01, 0x01 };
static byte[] email = { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x01 };
private X501 ()
{
}
static public string ToString (ASN1 seq)
{
StringBuilder sb = new StringBuilder ();
for (int i = 0; i < seq.Count; i++) {
ASN1 entry = seq [i];
ASN1 pair = entry [0];
ASN1 s = pair [1];
if (s == null)
continue;
ASN1 poid = pair [0];
if (poid == null)
continue;
if (poid.CompareValue (countryName))
sb.Append ("C=");
else if (poid.CompareValue (organizationName))
sb.Append ("O=");
else if (poid.CompareValue (organizationalUnitName))
sb.Append ("OU=");
else if (poid.CompareValue (commonName))
sb.Append ("CN=");
else if (poid.CompareValue (localityName))
sb.Append ("L=");
else if (poid.CompareValue (stateOrProvinceName))
sb.Append ("S="); // NOTE: RFC2253 uses ST=
else if (poid.CompareValue (streetAddress))
sb.Append ("STREET=");
else if (poid.CompareValue (domainComponent))
sb.Append ("DC=");
else if (poid.CompareValue (userid))
sb.Append ("UID=");
else if (poid.CompareValue (email))
sb.Append ("E="); // NOTE: Not part of RFC2253
else {
// unknown OID
sb.Append ("OID."); // NOTE: Not present as RFC2253
sb.Append (ASN1Convert.ToOid (poid));
sb.Append ("=");
}
string sValue = null;
// 16bits or 8bits string ? TODO not complete (+special chars!)
if (s.Tag == 0x1E) {
// BMPSTRING
StringBuilder sb2 = new StringBuilder ();
for (int j = 1; j < s.Value.Length; j+=2)
sb2.Append ((char) s.Value[j]);
sValue = sb2.ToString ();
}
else {
sValue = System.Text.Encoding.UTF8.GetString (s.Value);
// in some cases we must quote (") the value
// Note: this doesn't seems to conform to RFC2253
char[] specials = { ',', '+', '"', '\\', '<', '>', ';' };
if (sValue.IndexOfAny(specials, 0, sValue.Length) > 0)
sValue = "\"" + sValue + "\"";
else if (sValue.StartsWith (" "))
sValue = "\"" + sValue + "\"";
else if (sValue.EndsWith (" "))
sValue = "\"" + sValue + "\"";
}
sb.Append (sValue);
// separator (not on last iteration)
if (i < seq.Count - 1)
sb.Append (", ");
}
return sb.ToString ();
}
static private X520.AttributeTypeAndValue GetAttributeFromOid (string attributeType)
{
switch (attributeType.ToUpper (CultureInfo.InvariantCulture).Trim ()) {
case "C":
return new X520.CountryName ();
case "O":
return new X520.OrganizationName ();
case "OU":
return new X520.OrganizationalUnitName ();
case "CN":
return new X520.CommonName ();
case "L":
return new X520.LocalityName ();
case "S": // Microsoft
case "ST": // RFC2253
return new X520.StateOrProvinceName ();
case "DC":
// return streetAddress;
case "UID":
// return domainComponent;
default:
return null;
}
}
static public ASN1 FromString (string rdn)
{
if (rdn == null)
throw new ArgumentNullException ("rdn");
// get string from here to ',' or end of string
int start = 0;
int end = 0;
ASN1 asn1 = new ASN1 (0x30);
while (start < rdn.Length) {
end = rdn.IndexOf (',', end) + 1;
if (end == 0)
end = rdn.Length + 1;
string av = rdn.Substring (start, end - start - 1);
// get '=' position in substring
int equal = av.IndexOf ('=');
// get AttributeType
string attributeType = av.Substring (0, equal);
// get value
string attributeValue = av.Substring (equal + 1);
X520.AttributeTypeAndValue atv = GetAttributeFromOid (attributeType);
atv.Value = attributeValue;
asn1.Add (new ASN1 (0x31, atv.GetBytes ()));
// next part
start = end;
if (start != - 1) {
if (end > rdn.Length)
break;
}
}
return asn1;
}
}
}
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