Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Security / Policy / Zone.cs / 1305376 / Zone.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== //[....] // // // Zone.cs // // Zone is an IIdentity representing Internet/Intranet/MyComputer etc. // namespace System.Security.Policy { using System.Security.Util; using ZoneIdentityPermission = System.Security.Permissions.ZoneIdentityPermission; using System.Runtime.CompilerServices; using System.Runtime.InteropServices; using System.Runtime.Versioning; using System.Runtime.Serialization; using System.Diagnostics.Contracts; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public sealed class Zone : EvidenceBase, IIdentityPermissionFactory { #if FEATURE_CAS_POLICY [OptionalField(VersionAdded = 2)] private String m_url; #endif // FEATURE_CAS_POLICY private SecurityZone m_zone; private static readonly String[] s_names = {"MyComputer", "Intranet", "Trusted", "Internet", "Untrusted", "NoZone"}; public Zone(SecurityZone zone) { if (zone < SecurityZone.NoZone || zone > SecurityZone.Untrusted) throw new ArgumentException( Environment.GetResourceString( "Argument_IllegalZone" ) ); Contract.EndContractBlock(); m_zone = zone; } private Zone(Zone zone) { Contract.Assert(zone != null); #if FEATURE_CAS_POLICY m_url = zone.m_url; #endif // FEATURE_CAS_POLICY m_zone = zone.m_zone; } #if FEATURE_CAS_POLICY private Zone(String url) { m_url = url; m_zone = SecurityZone.NoZone; } public static Zone CreateFromUrl( String url ) { if (url == null) throw new ArgumentNullException( "url" ); Contract.EndContractBlock(); return new Zone( url ); } [System.Security.SecurityCritical] // auto-generated [ResourceExposure(ResourceScope.None)] [DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)] [SuppressUnmanagedCodeSecurity] private extern static SecurityZone _CreateFromUrl( String url ); #endif // FEATURE_CAS_POLICY public IPermission CreateIdentityPermission( Evidence evidence ) { return new ZoneIdentityPermission( SecurityZone ); } public SecurityZone SecurityZone { [System.Security.SecuritySafeCritical] // auto-generated get { #if FEATURE_CAS_POLICY if (m_url != null) m_zone = _CreateFromUrl( m_url ); #endif // FEATURE_CAS_POLICY return m_zone; } } public override bool Equals(Object o) { Zone other = o as Zone; if (other == null) { return false; } return SecurityZone == other.SecurityZone; } public override int GetHashCode() { return (int)SecurityZone; } public override EvidenceBase Clone() { return new Zone(this); } public Object Copy() { return Clone(); } #if FEATURE_CAS_POLICY internal SecurityElement ToXml() { SecurityElement elem = new SecurityElement( "System.Security.Policy.Zone" ); // 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.Zone" ), "Class name changed!" ); elem.AddAttribute( "version", "1" ); if (SecurityZone != SecurityZone.NoZone) elem.AddChild( new SecurityElement( "Zone", s_names[(int)SecurityZone] ) ); else elem.AddChild( new SecurityElement( "Zone", s_names[s_names.Length-1] ) ); 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 s_names[(int)SecurityZone]; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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