class/System/System.Net.Mail/Attachment.cs

   1 //
   2 // System.Net.Mail.Attachment.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.IO;
  34 using System.Net.Mime;
  35 using System.Text;
  36
  37 namespace System.Net.Mail {
  38         public class Attachment : AttachmentBase
  39         {
  40                 #region Fields
  41
  42                 ContentDisposition contentDisposition = new ContentDisposition ();
  43                 Encoding nameEncoding;
  44
  45                 #endregion // Fields
  46
  47                 #region Constructors
  48
  49                 public Attachment (string fileName)
  50                         : base (fileName) {
  51                         InitName (fileName);
  52                 }
  53
  54                 public Attachment (string fileName, string mediaType)
  55                         : base (fileName, mediaType) {
  56                         InitName (fileName);
  57                 }
  58
  59                 public Attachment (string fileName, ContentType contentType)
  60                         : base (fileName, contentType) {
  61                         InitName (fileName);
  62                 }
  63
  64                 public Attachment (Stream contentStream, ContentType contentType)
  65                         : base (contentStream, contentType) {
  66                 }
  67
  68                 public Attachment (Stream contentStream, string name)
  69                         : base (contentStream) {
  70                         Name = name;
  71                 }
  72
  73                 public Attachment (Stream contentStream, string name, string mediaType)
  74                         : base (contentStream, mediaType) {
  75                         Name = name;
  76                 }
  77
  78
  79
  80                 #endregion // Constructors
  81
  82                 #region Properties
  83
  84                 public ContentDisposition ContentDisposition {
  85                         get { return contentDisposition; }
  86                 }
  87
  88                 public string Name {
  89                         get { return ContentType.Name; }
  90                         set { ContentType.Name = value; }
  91                 }
  92
  93                 public Encoding NameEncoding {
  94                         get { return nameEncoding; }
  95                         set { nameEncoding = value; }
  96                 }
  97
  98                 #endregion // Properties
  99
 100                 #region Methods
 101
 102                 public static Attachment CreateAttachmentFromString (string content, ContentType contentType)
 103                 {
 104                         if (content == null)
 105                                 throw new ArgumentNullException ("content");
 106                         MemoryStream ms = new MemoryStream ();
 107                         StreamWriter sw = new StreamWriter (ms);
 108                         sw.Write (content);
 109                         sw.Flush ();
 110                         ms.Position = 0;
 111                         Attachment a = new Attachment (ms, contentType);
 112                         a.TransferEncoding = TransferEncoding.QuotedPrintable;
 113                         return a;
 114                 }
 115
 116                 public static Attachment CreateAttachmentFromString (string content, string name)
 117                 {
 118                         if (content == null)
 119                                 throw new ArgumentNullException ("content");
 120                         MemoryStream ms = new MemoryStream ();
 121                         StreamWriter sw = new StreamWriter (ms);
 122                         sw.Write (content);
 123                         sw.Flush ();
 124                         ms.Position = 0;
 125                         Attachment a = new Attachment (ms, new ContentType ("text/plain"));
 126                         a.TransferEncoding = TransferEncoding.QuotedPrintable;
 127                         a.Name = name;
 128                         return a;
 129                 }
 130
 131                 public static Attachment CreateAttachmentFromString (string content, string name, Encoding contentEncoding, string mediaType)
 132                 {
 133                         if (content == null)
 134                                 throw new ArgumentNullException ("content");
 135                         MemoryStream ms = new MemoryStream ();
 136                         StreamWriter sw = new StreamWriter (ms, contentEncoding);
 137                         sw.Write (content);
 138                         sw.Flush ();
 139                         ms.Position = 0;
 140                         Attachment a = new Attachment (ms, name, mediaType);
 141                         a.TransferEncoding = ContentType.GuessTransferEncoding (contentEncoding);
 142                         a.ContentType.CharSet = sw.Encoding.BodyName;
 143                         return a;
 144                 }
 145
 146                 #endregion // Methods
 147
 148                 private void InitName (string fileName) {
 149                         if (fileName == null) {
 150                                 throw new ArgumentNullException ("fileName");
 151                         }
 152
 153                         Name = Path.GetFileName (fileName);
 154                 }
 155
 156         }
 157 }
 158
 159 #endif // NET_2_0