MailAddress.cs :  » 2.6.4-mono-.net-core » System.Net » System » Net » Mail » C# / CSharp Open Source

//
// System.Net.Mail.MailAddress.cs
//
// Author:
//  Tim Coleman (tim@timcoleman.com)
//
// Copyright (C) Tim Coleman, 2004
//

//
// 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

using System.Text;

namespace System.Net.Mail{
  public class MailAddress 
  {
    #region Fields

    string address;
    string displayName;
    //Encoding displayNameEncoding;

    #endregion // Fields

    #region Constructors

    public MailAddress (string address) : this (address, null)
    {
    }

    public MailAddress (string address, string displayName) : this (address, displayName, Encoding.Default)
    {
    }

    public MailAddress (string address, string displayName, Encoding displayNameEncoding)
    {
      if (address == null)
        throw new ArgumentNullException ("address");

      // either displayname is enclosed in quotes, and/or e-mail address
      // is enclosed in less than / greater than characters
      int quoteStart = address.IndexOf ('"');
      if (quoteStart == 0) {
        int quoteEnd = address.IndexOf ('"', quoteStart + 1);
        if (quoteEnd == -1)
          throw CreateFormatException ();
        this.displayName = address.Substring (quoteStart + 1, quoteEnd - 1).Trim ();
        address = address.Substring (quoteEnd + 1);
      }

      int addressStart = address.IndexOf ('<');
      if (addressStart != -1) {
        if (addressStart + 1 >= address.Length)
          throw CreateFormatException ();
        int addressEnd = address.IndexOf ('>', addressStart + 1);
        if (addressEnd == -1)
          throw CreateFormatException ();
        if (this.displayName == null)
          this.displayName = address.Substring (0, addressStart).Trim ();
        address = address.Substring (++addressStart, addressEnd - addressStart);
      }

      // LAMESPEC: zero-length displayName should not override display name
      // specified in address
      // https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=283163
      if (displayName != null)
        this.displayName = displayName.Trim ();

      this.address = address.Trim ();
      //this.displayNameEncoding = displayNameEncoding;
    }

    #endregion // Constructors

#region Properties

    public string Address {
      get { return address; }
    }

    public string DisplayName {
      get {
        if (displayName == null)
          return string.Empty;
        return displayName;
      }
    }

    public string Host {
      get { return Address.Substring (address.IndexOf ("@") + 1); }
    }

    public string User {
      get { return Address.Substring (0, address.IndexOf ("@")); }
    }

#endregion // Properties

#region Methods
    
    public override bool Equals (object obj)
    {
      return Equals (obj as MailAddress);
    }

    bool Equals (MailAddress other)
    {
      return other != null && Address == other.Address;
    }

    public override int GetHashCode ()
    {
      return address.GetHashCode ();
    }

    public override string ToString ()
    {
      StringBuilder sb = new StringBuilder ();
      if (DisplayName != null && DisplayName.Length > 0) {
        sb.Append ("\"");
        sb.Append (DisplayName);
        sb.Append ("\"");
        sb.Append (" ");
        sb.Append ("<");
        sb.Append (Address);
        sb.Append (">");
      }
      else {
        sb.Append (Address);
      }

      return sb.ToString ();
    }

    private static FormatException CreateFormatException () {
      return new FormatException ("The specified string is not in the "
        + "form required for an e-mail address.");
    }

#endregion // Methods
  }
}

#endif // NET_2_0