/// <summary>Read Element named mime-type. </summary>
private MimeType ReadMimeType(XmlElement element)
{
String name = null;
String description = null;
MimeType type;
XmlNamedNodeMap attrs = element.Attributes;
for (int i = 0; i < attrs.Count; i++)
{
XmlAttribute attr = (XmlAttribute) attrs.Item(i);
if (attr.Name.Equals("name"))
{
name = attr.Value;
}
else if (attr.Name.Equals("description"))
{
description = attr.Value;
}
}
if ((name == null) || (name.Trim().Equals("")))
{
return null;
}
try
{
//Trace.WriteLine("Mime type:" + name);
type = new MimeType(name);
}
catch (MimeTypeException mte)
{
// Mime Type not valid... just ignore it
Trace.WriteLine(mte.ToString() + " ... Ignoring!");
return null;
}
type.Description = description;
XmlNodeList nodes = element.ChildNodes;
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes.Item(i);
if (Convert.ToInt16(node.NodeType) == (short) XmlNodeType.Element)
{
XmlElement nodeElement = (XmlElement) node;
if (nodeElement.Name.Equals("ext"))
{
ReadExt(nodeElement, type);
}
else if (nodeElement.Name.Equals("magic"))
{
ReadMagic(nodeElement, type);
}
}
}
return type;
}
/// <summary>Read Element named magic. </summary>
private void ReadMagic(XmlElement element, MimeType mimeType)
{
// element.getValue();
String offset = null;
String content = null;
String type = null;
var attrs = element.Attributes;
for (int i = 0; i < attrs.Count; i++)
{
XmlAttribute attr = (XmlAttribute) attrs.Item(i);
if (attr.Name.Equals("offset"))
{
offset = attr.Value;
}
else if (attr.Name.Equals("type"))
{
type = attr.Value;
if (String.Compare(type, "byte", true) == 0)
{
type = "System.Byte";
}
}
else if (attr.Name.Equals("value"))
{
content = attr.Value;
}
}
if ((offset != null) && (content != null))
{
mimeType.AddMagic(Int32.Parse(offset), type, content);
}
}
/// <summary> Add the specified mime-type in the repository.</summary>
/// <param name="type">is the mime-type to add.
/// </param>
internal void Add(MimeType type)
{
_typesIdx[type.Name] = type;
_types.Add(type);
// Update minLentgth
_minLength = Math.Max(_minLength, type.MinLength);
// Update the extensions index...
String[] exts = type.Extensions;
if (exts != null)
{
foreach (string ext in exts)
{
IList list = (IList) _extIdx[ext];
if (list == null)
{
// No type already registered for this extension...
// So, create a list of types
list = new ArrayList();
_extIdx[ext] = list;
}
list.Add(type);
}
}
// Update the magics index...
if (type.HasMagic())
{
_mimeTypes.Add(type);
}
}
/// <summary>Read Element named ext. </summary>
private void ReadExt(XmlElement element, MimeType type)
{
XmlNodeList nodes = element.ChildNodes;
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes.Item(i);
if (Convert.ToInt16(node.NodeType) == (short) XmlNodeType.Text)
{
type.AddExtension(((XmlText) node).Data);
}
}
}
/// <summary> Add the specified mime-types in the repository.</summary>
/// <param name="types">are the mime-types to add.
/// </param>
internal void Add(MimeType[] types)
{
if (types == null)
{
return;
}
foreach (MimeType t in types)
{
Add(t);
}
}
