2 // System.Security.Cryptography.X509Certificates.X500DistinguishedName
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // Copyright (C) 2004-2006 Novell Inc. (http://www.novell.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using MX = Mono.Security.X509;
35 extern alias MonoSecurity;
36 using MonoSecurity::Mono.Security;
37 using MX = MonoSecurity::Mono.Security.X509;
40 using System.Collections;
43 namespace System.Security.Cryptography.X509Certificates {
45 [MonoTODO ("Some X500DistinguishedNameFlags options aren't supported, like DoNotUsePlusSign, DoNotUseQuotes and ForceUTF8Encoding")]
46 public sealed class X500DistinguishedName : AsnEncodedData {
48 private const X500DistinguishedNameFlags AllFlags = X500DistinguishedNameFlags.Reversed |
49 X500DistinguishedNameFlags.UseSemicolons | X500DistinguishedNameFlags.DoNotUsePlusSign |
50 X500DistinguishedNameFlags.DoNotUseQuotes | X500DistinguishedNameFlags.UseCommas |
51 X500DistinguishedNameFlags.UseNewLines | X500DistinguishedNameFlags.UseUTF8Encoding |
52 X500DistinguishedNameFlags.UseT61Encoding | X500DistinguishedNameFlags.ForceUTF8Encoding;
57 public X500DistinguishedName (AsnEncodedData encodedDistinguishedName)
59 if (encodedDistinguishedName == null)
60 throw new ArgumentNullException ("encodedDistinguishedName");
62 RawData = encodedDistinguishedName.RawData;
63 if (RawData.Length > 0)
69 public X500DistinguishedName (byte[] encodedDistinguishedName)
71 if (encodedDistinguishedName == null)
72 throw new ArgumentNullException ("encodedDistinguishedName");
75 RawData = encodedDistinguishedName;
76 if (encodedDistinguishedName.Length > 0)
82 public X500DistinguishedName (string distinguishedName)
83 : this (distinguishedName, X500DistinguishedNameFlags.Reversed)
87 public X500DistinguishedName (string distinguishedName, X500DistinguishedNameFlags flag)
89 if (distinguishedName == null)
90 throw new ArgumentNullException ("distinguishedName");
91 if ((flag != 0) && ((flag & AllFlags) == 0))
92 throw new ArgumentException ("flag");
95 if (distinguishedName.Length == 0) {
96 // empty (0x00) ASN.1 sequence (0x30)
97 RawData = new byte [2] { 0x30, 0x00 };
100 var dn = MX.X501.FromString (distinguishedName);
101 if ((flag & X500DistinguishedNameFlags.Reversed) != 0) {
102 ASN1 rdn = new ASN1 (0x30);
103 for (int i = dn.Count - 1; i >= 0; i--)
107 RawData = dn.GetBytes ();
108 if (flag == X500DistinguishedNameFlags.None)
109 name = distinguishedName;
111 name = Decode (flag);
115 public X500DistinguishedName (X500DistinguishedName distinguishedName)
117 if (distinguishedName == null)
118 throw new ArgumentNullException ("distinguishedName");
121 RawData = distinguishedName.RawData;
122 name = distinguishedName.name;
131 public string Decode (X500DistinguishedNameFlags flag)
133 if ((flag != 0) && ((flag & AllFlags) == 0))
134 throw new ArgumentException ("flag");
136 if (RawData.Length == 0)
139 // Mono.Security reversed isn't the same as fx 2.0 (which is the reverse of 1.x)
140 bool reversed = ((flag & X500DistinguishedNameFlags.Reversed) != 0);
141 bool quotes = ((flag & X500DistinguishedNameFlags.DoNotUseQuotes) == 0);
142 string separator = GetSeparator (flag);
144 ASN1 rdn = new ASN1 (RawData);
145 return MX.X501.ToString (rdn, reversed, separator, quotes);
148 public override string Format (bool multiLine)
151 string s = Decode (X500DistinguishedNameFlags.UseNewLines);
153 return s + Environment.NewLine;
157 return Decode (X500DistinguishedNameFlags.UseCommas);
163 private static string GetSeparator (X500DistinguishedNameFlags flag)
165 if ((flag & X500DistinguishedNameFlags.UseSemicolons) != 0)
167 if ((flag & X500DistinguishedNameFlags.UseCommas) != 0)
169 if ((flag & X500DistinguishedNameFlags.UseNewLines) != 0)
170 return Environment.NewLine;
171 return ", "; //default
174 // decode the DN using the (byte[]) RawData
175 private void DecodeRawData ()
177 if ((RawData == null) || (RawData.Length < 3)) {
182 ASN1 sequence = new ASN1 (RawData);
183 name = MX.X501.ToString (sequence, true, ", ", true);
186 private static string Canonize (string s)
188 int i = s.IndexOf ('=') + 1;
189 StringBuilder r = new StringBuilder (s.Substring (0, i));
190 // skip any white space starting the value
191 while (i < s.Length && Char.IsWhiteSpace (s, i))
193 // ensure we skip white spaces at the end of the value
195 // keep track of internal multiple spaces
197 for (; i < s.Length; i++) {
199 space = Char.IsWhiteSpace (s, i);
203 if (Char.IsWhiteSpace (s, i))
205 r.Append (Char.ToUpperInvariant (s[i]));
207 return r.ToString ();
210 // of all X500DistinguishedNameFlags flags nothing can do a "correct" comparison :|
211 internal static bool AreEqual (X500DistinguishedName name1, X500DistinguishedName name2)
214 return (name2 == null);
218 X500DistinguishedNameFlags flags = X500DistinguishedNameFlags.UseNewLines | X500DistinguishedNameFlags.DoNotUseQuotes;
219 string[] split = new string[] { Environment.NewLine };
220 string[] parts1 = name1.Decode (flags).Split (split, StringSplitOptions.RemoveEmptyEntries);
221 string[] parts2 = name2.Decode (flags).Split (split, StringSplitOptions.RemoveEmptyEntries);
222 if (parts1.Length != parts2.Length)
225 for (int i = 0; i < parts1.Length; i++) {
226 if (Canonize (parts1[i]) != Canonize (parts2[i]))