mcs/class/System/System.Net.Mail/MailAddress.cs

   1 //
   2 // System.Net.Mail.MailAddress.cs
   3 //
   4 // Author:
   5 //      Tim Coleman (tim@timcoleman.com)
   6 //
   7 // Copyright (C) Tim Coleman, 2004
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 #if NET_2_0
  32
  33 using System.Text;
  34
  35 namespace System.Net.Mail {
  36         public class MailAddress
  37         {
  38                 #region Fields
  39
  40                 string address;
  41                 string displayName;
  42                 string host;
  43                 string user;
  44                 string to_string;
  45                 //Encoding displayNameEncoding;
  46
  47                 #endregion // Fields
  48
  49                 #region Constructors
  50
  51                 public MailAddress (string address) : this (address, null)
  52                 {
  53                 }
  54
  55                 public MailAddress (string address, string displayName) : this (address, displayName, Encoding.UTF8)
  56                 {
  57                 }
  58
  59                 [MonoTODO ("We don't do anything with displayNameEncoding")]
  60                 public MailAddress (string address, string displayName, Encoding displayNameEncoding)
  61                 {
  62                         if (address == null)
  63                                 throw new ArgumentNullException ("address");
  64                         if (address.Length == 0)
  65                                 throw new ArgumentException ("address");
  66
  67                         if (displayName != null)
  68                                 this.displayName = displayName.Trim ();
  69                         ParseAddress (address);
  70                 }
  71
  72                 void ParseAddress (string address)
  73                 {
  74                         // 1. Quotes for display name
  75                         address = address.Trim ();
  76                         int idx = address.IndexOf ('"');
  77                         if (idx != -1) {
  78                                 if (idx != 0 || address.Length == 1)
  79                                         throw CreateFormatException ();
  80
  81                                 int closing = address.LastIndexOf ('"');
  82                                 if (closing == idx)
  83                                         throw CreateFormatException ();
  84
  85                                 if (this.displayName == null)
  86                                         this.displayName = address.Substring (idx + 1, closing - idx - 1).Trim ();
  87                                 address = address.Substring (closing + 1).Trim ();
  88                         }
  89
  90                         // 2. <email>
  91                         idx = address.IndexOf ('<');
  92                         if (idx >= 0) {
  93                                 if (this.displayName == null)
  94                                         this.displayName = address.Substring (0, idx).Trim ();
  95                                 if (address.Length - 1 == idx)
  96                                         throw CreateFormatException ();
  97
  98                                 int end = address.IndexOf ('>', idx + 1);
  99                                 if (end == -1)
 100                                         throw CreateFormatException ();
 101
 102                                 address = address.Substring (idx + 1, end - idx - 1).Trim ();
 103                         }
 104                         this.address = address;
 105                         // 3. email
 106                         idx = address.IndexOf ('@');
 107                         if (idx <= 0)
 108                                 throw CreateFormatException ();
 109                         if (idx != address.LastIndexOf ('@'))
 110                                 throw CreateFormatException ();
 111
 112                         this.user = address.Substring (0, idx).Trim ();
 113                         if (user.Length == 0)
 114                                 throw CreateFormatException ();
 115                         this.host = address.Substring (idx + 1).Trim ();
 116                         if (host.Length == 0)
 117                                 throw CreateFormatException ();
 118                 }
 119
 120                 #endregion // Constructors
 121
 122 #region Properties
 123
 124                 public string Address {
 125                         get { return address; }
 126                 }
 127
 128                 public string DisplayName {
 129                         get {
 130                                 if (displayName == null)
 131                                         return string.Empty;
 132                                 return displayName;
 133                         }
 134                 }
 135
 136                 public string Host {
 137                         get { return host; }
 138                 }
 139
 140                 public string User {
 141                         get { return user; }
 142                 }
 143
 144 #endregion // Properties
 145
 146 #region Methods
 147
 148                 public override bool Equals (object obj)
 149                 {
 150                         if (obj == null)
 151                                 return false;
 152
 153                         return (0 == String.Compare (ToString (), obj.ToString (), StringComparison.OrdinalIgnoreCase));
 154                 }
 155
 156                 public override int GetHashCode ()
 157                 {
 158                         return ToString ().GetHashCode ();
 159                 }
 160
 161                 public override string ToString ()
 162                 {
 163                         if (to_string != null)
 164                                 return to_string;
 165
 166                         if (!String.IsNullOrEmpty (displayName))
 167                                 to_string = String.Format ("\"{0}\" <{1}>", DisplayName, Address);
 168                         else
 169                                 to_string = address;
 170
 171                         return to_string;
 172                 }
 173
 174                 private static FormatException CreateFormatException () {
 175                         return new FormatException ("The specified string is not in the "
 176                                 + "form required for an e-mail address.");
 177                 }
 178
 179 #endregion // Methods
 180         }
 181 }
 182
 183 #endif // NET_2_0