90 lines
3.0 KiB
C#
90 lines
3.0 KiB
C#
//
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// System.Xml.XmlResolver.cs
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//
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// Author:
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// Jason Diamond (jason@injektilo.org)
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// Atsushi Enomoto (atsushi@ximian.com)
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//
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// (C) 2001 Jason Diamond http://injektilo.org/
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// Copyright (C) 2004,2009 Novell, Inc (http://www.novell.com)
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.IO;
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using System.Net;
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using System.Security.Permissions;
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using System.Threading.Tasks;
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namespace System.Xml
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{
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public abstract class XmlResolver
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{
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public virtual ICredentials Credentials {
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set { throw new NotImplementedException (); }
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}
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public abstract object GetEntity (Uri absoluteUri, string role, Type ofObjectToReturn);
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[PermissionSet (SecurityAction.InheritanceDemand, Unrestricted = true)]
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public virtual Uri ResolveUri (Uri baseUri, string relativeUri)
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{
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if (baseUri == null) {
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if (relativeUri == null)
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throw new ArgumentNullException ("Either baseUri or relativeUri are required.");
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// Don't ignore such case that relativeUri is in fact absolute uri (e.g. ResolveUri (null, "http://foo.com")).
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int idx = relativeUri.IndexOf (':');
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if (idx > 0 && Uri.CheckSchemeName (relativeUri.Substring (0, idx)))
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return new Uri (relativeUri);
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else
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return new Uri (Path.GetFullPath (relativeUri));
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}
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if (relativeUri == null)
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return baseUri;
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return new Uri (baseUri, EscapeRelativeUriBody (relativeUri));
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}
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// see also XmlUrlResolver.UnescapeRelativeUriBody().
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private string EscapeRelativeUriBody (string src)
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{
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return src.Replace ("<", "%3C")
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.Replace (">", "%3E")
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.Replace ("#", "%23")
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.Replace ("%", "%25")
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.Replace ("\"", "%22");
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}
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public virtual bool SupportsType (Uri absoluteUri, Type type)
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{
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if (absoluteUri == null)
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throw new ArgumentNullException ("absoluteUri");
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return ((type == null) || (type == typeof (Stream)));
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}
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public virtual Task<object> GetEntityAsync (Uri absoluteUri, string role, Type ofObjectToReturn)
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{
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throw new NotImplementedException ();
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}
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}
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}
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