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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
// <OWNER>Microsoft</OWNER>
//
//
// Site.cs
//
// Site is an IIdentity representing internet sites.
//
using System;
using System.Diagnostics.Contracts;
using System.Globalization;
using System.Security.Permissions;
using System.Security.Util;
namespace System.Security.Policy
{
[Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class Site : EvidenceBase, IIdentityPermissionFactory
{
private SiteString m_name;
public Site(String name)
{
if (name == null)
throw new ArgumentNullException("name");
Contract.EndContractBlock();
m_name = new SiteString( name );
}
private Site(SiteString name)
{
Contract.Assert(name != null);
m_name = name;
}
public static Site CreateFromUrl( String url )
{
return new Site(ParseSiteFromUrl(url));
}
private static SiteString ParseSiteFromUrl( String name )
{
URLString urlString = new URLString( name );
if (String.Compare( urlString.Scheme, "file", StringComparison.OrdinalIgnoreCase) == 0)
throw new ArgumentException( Environment.GetResourceString( "Argument_InvalidSite" ) );
return new SiteString( new URLString( name ).Host );
}
public String Name
{
get { return m_name.ToString(); }
}
internal SiteString GetSiteString()
{
return m_name;
}
public IPermission CreateIdentityPermission( Evidence evidence )
{
return new SiteIdentityPermission( Name );
}
public override bool Equals(Object o)
{
Site other = o as Site;
if (other == null)
{
return false;
}
return String.Equals(Name, other.Name, StringComparison.OrdinalIgnoreCase);
}
public override int GetHashCode()
{
return Name.GetHashCode();
}
public override EvidenceBase Clone()
{
return new Site(m_name);
}
public Object Copy()
{
return Clone();
}
#if FEATURE_CAS_POLICY
internal SecurityElement ToXml()
{
SecurityElement elem = new SecurityElement( "System.Security.Policy.Site" );
// If you hit this assert then most likely you are trying to change the name of this class.
// This is ok as long as you change the hard coded string above and change the assert below.
Contract.Assert( this.GetType().FullName.Equals( "System.Security.Policy.Site" ), "Class name changed!" );
elem.AddAttribute( "version", "1" );
if(m_name != null)
elem.AddChild( new SecurityElement( "Name", m_name.ToString() ) );
return elem;
}
#endif // FEATURE_CAS_POLICY
#if FEATURE_CAS_POLICY
public override String ToString()
{
return ToXml().ToString();
}
#endif // FEATURE_CAS_POLICY
// INormalizeForIsolatedStorage is not implemented for startup perf
// equivalent to INormalizeForIsolatedStorage.Normalize()
internal Object Normalize()
{
return m_name.ToString().ToUpper(CultureInfo.InvariantCulture);
}
}
}
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