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//
// System.Security.Policy.Zone
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2002 Ximian, Inc (http://www.ximian.com)
// Copyright (C) 2004-2005 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.
//
#if !NET_2_1 || MONOTOUCH
using System.IO;
using System.Globalization;
using System.Security.Permissions;
using System.Runtime.InteropServices;
using Mono.Security;
namespace System.Security.Policy {
[Serializable]
#if NET_2_0
[ComVisible (true)]
#endif
public sealed class Zone : IIdentityPermissionFactory, IBuiltInEvidence {
private SecurityZone zone;
public Zone (SecurityZone zone)
{
if (!Enum.IsDefined (typeof (SecurityZone), zone)) {
string msg = String.Format (Locale.GetText ("Invalid zone {0}."), zone);
throw new ArgumentException (msg, "zone");
}
this.zone = zone;
}
// properties
public SecurityZone SecurityZone {
get { return zone; }
}
// methods
public object Copy ()
{
return new Zone (zone);
}
public IPermission CreateIdentityPermission (Evidence evidence)
{
return new ZoneIdentityPermission (zone);
}
[MonoTODO ("Not user configurable yet")]
public static Zone CreateFromUrl (string url)
{
if (url == null)
throw new ArgumentNullException ("url");
SecurityZone z = SecurityZone.NoZone;
if (url.Length == 0)
return new Zone (z);
Uri uri = new Uri (url);
// TODO: apply zone configuration
// this is the only way to use the Trusted and Untrusted zones
if (z == SecurityZone.NoZone) {
// not part of configuration, the use default mapping
if (uri.IsFile) {
if (File.Exists (uri.LocalPath))
z = SecurityZone.MyComputer;
else if (String.Compare ("FILE://", 0, url, 0, 7, true, CultureInfo.InvariantCulture) == 0)
z = SecurityZone.Intranet; // non accessible file://
else
z = SecurityZone.Internet;
}
else if (uri.IsLoopback) { // e.g. http://localhost/x
z = SecurityZone.Intranet;
}
else {
// all protocols, including unknown ones
z = SecurityZone.Internet;
}
}
return new Zone (z);
}
public override bool Equals (object o)
{
Zone z = (o as Zone);
if (z == null)
return false;
return (z.zone == zone);
}
public override int GetHashCode ()
{
return (int) zone;
}
public override string ToString ()
{
SecurityElement se = new SecurityElement ("System.Security.Policy.Zone");
se.AddAttribute ("version", "1");
se.AddChild (new SecurityElement ("Zone", zone.ToString ()));
return se.ToString ();
}
// interface IBuiltInEvidence
int IBuiltInEvidence.GetRequiredSize (bool verbose)
{
return 3;
}
int IBuiltInEvidence.InitFromBuffer (char [] buffer, int position)
{
int new_zone = (int) buffer [position++];
new_zone += buffer [position++];
return position;
}
int IBuiltInEvidence.OutputToBuffer (char [] buffer, int position, bool verbose)
{
buffer [position++] = '\x0003';
buffer [position++] = (char) (((int) zone) >> 16);
buffer [position++] = (char) (((int) zone) & 0x0FFFF);
return position;
}
}
}
#endif
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