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//
// System.Xml.XmlResolver.cs
//
// Author:
// Jason Diamond (jason@injektilo.org)
// Atsushi Enomoto (atsushi@ximian.com)
//
// (C) 2001 Jason Diamond http://injektilo.org/
// Copyright (C) 2004,2009 Novell, Inc (http://www.novell.com)
//
//
// 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.
//
using System.IO;
using System.Net;
using System.Security.Permissions;
#if NET_4_5
using System.Threading.Tasks;
#endif
namespace System.Xml
{
public abstract class XmlResolver
{
#if NET_4_5
public virtual ICredentials Credentials {
set { throw new NotImplementedException (); }
}
#else
public abstract ICredentials Credentials { set; }
#endif
public abstract object GetEntity (Uri absoluteUri, string role, Type ofObjectToReturn);
[PermissionSet (SecurityAction.InheritanceDemand, Unrestricted = true)]
public virtual Uri ResolveUri (Uri baseUri, string relativeUri)
{
if (baseUri == null) {
if (relativeUri == null)
throw new ArgumentNullException ("Either baseUri or relativeUri are required.");
// Don't ignore such case that relativeUri is in fact absolute uri (e.g. ResolveUri (null, "http://foo.com")).
int idx = relativeUri.IndexOf (':');
if (idx > 0 && Uri.CheckSchemeName (relativeUri.Substring (0, idx)))
return new Uri (relativeUri);
else
return new Uri (Path.GetFullPath (relativeUri));
}
if (relativeUri == null)
return baseUri;
return new Uri (baseUri, EscapeRelativeUriBody (relativeUri));
}
// see also XmlUrlResolver.UnescapeRelativeUriBody().
private string EscapeRelativeUriBody (string src)
{
return src.Replace ("<", "%3C")
.Replace (">", "%3E")
.Replace ("#", "%23")
.Replace ("%", "%25")
.Replace ("\"", "%22");
}
#if NET_4_5
public virtual bool SupportsType (Uri absoluteUri, Type type)
{
if (absoluteUri == null)
throw new ArgumentNullException ("absoluteUri");
return ((type == null) || (type == typeof (Stream)));
}
#endif
#if NET_4_5
public virtual Task<object> GetEntityAsync (Uri absoluteUri, string role, Type ofObjectToReturn)
{
throw new NotImplementedException ();
}
#endif
}
}
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